CN119972723A - A multi-layer three-dimensional disposal device for garbage fly ash based on asphalt medium - Google Patents
A multi-layer three-dimensional disposal device for garbage fly ash based on asphalt medium Download PDFInfo
- Publication number
- CN119972723A CN119972723A CN202510478922.1A CN202510478922A CN119972723A CN 119972723 A CN119972723 A CN 119972723A CN 202510478922 A CN202510478922 A CN 202510478922A CN 119972723 A CN119972723 A CN 119972723A
- Authority
- CN
- China
- Prior art keywords
- fly ash
- asphalt
- disposal
- stirring
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/21—Agglomeration, binding or encapsulation of solid waste using organic binders or matrix
- B09B3/23—Binders with asphalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/38—Stirring or kneading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/30—Incineration ashes
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明公开了一种基于沥青介质的垃圾飞灰多层立体化处置装置，属于垃圾飞灰处置技术领域，包括罐体；设置与所述罐体上方的下落处置单元；位于所述下落处置单元下方的旋转处置机构；位于所述旋转处置机构下方的搅拌处置机构、设置在所述搅拌处置机构下方的冷却处置机构，以及设置在所述罐体上的基础件。本发明从顶部的垃圾飞灰储存罐落下的飞灰通过下落处置单元、旋转处置机构、搅拌处置机构以冷却处置机构，从不同角度以及不同方向喷洒沥青裹覆飞灰并且通过多重拌合组件实现沥青与飞灰的交互混合，显著减小了飞灰的重金属浸出浓度，提高了重金属浸出抑制率以及飞灰在沥青中的分散性，最终材料存储罐收集处置完的垃圾飞灰‑沥青材料。
The present invention discloses a multi-layer three-dimensional disposal device for garbage fly ash based on asphalt medium, which belongs to the technical field of garbage fly ash disposal, and includes a tank body; a falling disposal unit arranged above the tank body; a rotating disposal mechanism located below the falling disposal unit; a stirring disposal mechanism located below the rotating disposal mechanism, a cooling disposal mechanism arranged below the stirring disposal mechanism, and a base member arranged on the tank body. In the present invention, the fly ash falling from the top of the garbage fly ash storage tank is sprayed with asphalt from different angles and directions through the falling disposal unit, the rotating disposal mechanism, the stirring disposal mechanism and the cooling disposal mechanism, and the asphalt is sprayed on the fly ash from different angles and directions, and the interactive mixing of asphalt and fly ash is achieved through multiple mixing components, which significantly reduces the heavy metal leaching concentration of the fly ash, improves the heavy metal leaching inhibition rate and the dispersibility of the fly ash in asphalt, and finally the material storage tank collects the disposed garbage fly ash-asphalt material.
Description
Technical Field
The invention relates to the technical field of disposal of waste fly ash, in particular to a multi-layer three-dimensional disposal device of waste fly ash based on asphalt medium.
Background
The garbage fly ash is fine particles generated in the municipal solid waste incineration process and mainly comprises inorganic salts, heavy metals (such as lead, cadmium and mercury), organic pollutants (such as dioxin) and the like. Because of fine particles and large specific surface area, heavy metals and organic pollutants in the fly ash have higher mobility and biotoxicity, and form serious threat to the environment and human health.
The existing harmless treatment of the garbage fly ash mainly adopts materials such as cement or chelating agent to solidify the fly ash so as to realize the harmless treatment, and the solidification process mainly adopts a mixing and solidifying device, namely, the cement or the chelating agent is mixed with the fly ash through stirring, mixing and other processes to form a solidified body. However, the existing garbage fly ash stirring, mixing and solidifying device has the following disadvantages:
The existing stirring mixing curing device mostly adopts simple stirring mixing, the coating property of the curing medium to the fly ash is basically single-layer coating of mixing interaction, and the dissolving and seepage risk is easy to occur in a coated weak area.
Disclosure of Invention
The present invention has been made in view of the above-described problems.
Therefore, the invention solves the technical problems that the fly ash has poor dispersibility in the curing agent, the coating property of the curing medium on the fly ash is basically mixed and interacted single-layer coating, and the infiltration risk is easy to occur in the coated weak area.
In order to solve the technical problems, the invention provides the technical proposal that the multi-layer three-dimensional disposal device for the garbage fly ash based on asphalt medium comprises the following steps,
A tank body;
The falling disposal unit is arranged above the tank body and comprises a bottom plate, an oleophobic coating arranged on the surface of the bottom plate, an asphalt sprayer arranged on the inner wall of the tank body and a baffle plate arranged at the lower end of the bottom plate, and the falling disposal unit is of a spiral structure, so that the falling duration of garbage fly ash-asphalt material is prolonged, and the disposal time and space are prolonged;
The rotary disposal mechanism is positioned below the falling disposal unit and comprises a rotary barrel positioned in the middle of the tank body, an automatic spray head positioned above the rotary barrel, a blast mechanism arranged on the side surface of the rotary barrel and a chassis arranged below the rotary barrel;
the stirring treatment mechanism is positioned below the rotary treatment mechanism, the cooling treatment mechanism is arranged below the stirring treatment mechanism, and the base piece is arranged on the tank body.
As a preferable scheme of the multi-layer three-dimensional disposal device for the garbage fly ash based on the asphalt medium, the invention is characterized in that a plurality of bumps are arranged on the inner wall of the bottom of the rotary barrel, air valves are arranged between the bumps, and a first valve is arranged at the bottom of the rotary barrel.
As a preferable scheme of the multi-layer three-dimensional disposal device for the garbage fly ash based on the asphalt medium, the invention comprises an air inlet arranged on the inner wall of the tank body, a ventilation pipe communicated with the air inlet, and an air outlet connected with the other end of the ventilation pipe;
the air blowing mechanism further comprises a volute arranged in the middle of the ventilation pipe;
An impeller and a bearing connected with the impeller are arranged in the volute.
As a preferable scheme of the multi-layer three-dimensional disposal device for the garbage fly ash based on the asphalt medium, the invention comprises a plurality of groups of air ducts and an access port reserved on the surface of the chassis, wherein the air ducts are arranged in the chassis;
wherein, the air duct is connected with the air outlet.
The invention relates to a multi-layer three-dimensional disposal device for garbage fly ash based on asphalt medium, which comprises a stirring paddle, a connecting pipeline arranged on the side surface of the stirring paddle, an infrared heater arranged above the stirring paddle, and a second valve arranged below the stirring paddle;
the inner end of the stirring paddle is provided with a disc, and the inside of the disc is fixedly connected with a stirring shaft.
The multi-layer three-dimensional disposal device for the garbage fly ash based on the asphalt medium comprises a cooling tank, a stirring piece, an asphalt spraying pipe, a liquid nitrogen cooling chamber, a conveying port and a third valve, wherein the cooling tank is arranged below the tank body, the stirring piece is arranged above the cooling tank, the asphalt spraying pipe is arranged on the side face of the stirring piece, the liquid nitrogen cooling chamber is arranged outside the cooling tank, the conveying port is arranged on the side face of the liquid nitrogen cooling chamber, and the third valve is arranged at the bottom of the cooling tank.
As a preferable scheme of the multi-layer three-dimensional disposal device for the garbage fly ash based on the asphalt medium, the stirring piece comprises a rotating paddle, a connecting shaft and a motor, wherein the rotating paddle is arranged on the upper side inside the cooling tank and close to the second valve, the connecting shaft is used for connecting the rotating paddle, and the motor is arranged on the surface of the cooling tank.
As a preferable scheme of the multi-layer three-dimensional disposal device for the waste fly ash based on asphalt medium, the invention comprises the following steps: the foundation piece comprises a stirring device, an asphalt storage chamber positioned on the side surface of the upper end of the tank body, and a garbage fly ash storage tank at the upper end of the tank body;
the base member also includes the pitch conveyer pipe of connecting in the pitch storage room below to and be located the material storage jar of jar body lower extreme.
As a preferable scheme of the multi-layer three-dimensional disposal device for the waste fly ash based on the asphalt medium, the bottom of the waste fly ash storage tank is provided with a fourth valve, and a waste fly ash feed inlet is arranged above the waste fly ash storage tank;
wherein the bottom surface of the garbage fly ash storage tank is obliquely arranged;
An asphalt feeding port is reserved at the outer side of the asphalt storage chamber, a fifth valve is arranged between the asphalt storage chamber and the asphalt conveying pipe, and a sixth valve is arranged between the asphalt storage chamber and the automatic spray head.
As a preferable scheme of the multi-layer three-dimensional disposal device for the garbage fly ash based on the asphalt medium, the asphalt conveying pipe is connected with the stirring disposal mechanism through a sixth valve.
The device has the beneficial effects that the fly ash falling from the garbage fly ash storage tank at the top is sprayed with asphalt coated fly ash from different angles and different directions through the falling treatment unit, the rotary treatment mechanism and the stirring treatment mechanism to cool the treatment mechanism, and the interactive mixing of asphalt and fly ash is realized through the multiple stirring components, so that the heavy metal leaching concentration of the fly ash is remarkably reduced, the heavy metal leaching inhibition rate and the dispersibility of the fly ash in the asphalt are improved, the garbage fly ash-asphalt material which is treated is collected by the material storage tank finally, the treated garbage fly ash-asphalt material also has higher recycling potential, and the device can be used in the fields of road construction, building fillers and the like, and the high-efficiency utilization of wastes is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional view of a refuse fly ash multi-layer three-dimensional disposal device based on asphalt medium according to an embodiment of the present invention.
Fig. 2 is a schematic view of a falling disposal unit of a multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a chassis structure of a refuse fly ash multi-layer three-dimensional disposal device based on asphalt medium according to an embodiment of the present invention.
Fig. 4 is a top view of a rotary disposal mechanism of a multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to an embodiment of the invention.
Fig. 5 is a diagram of a blast mechanism of a multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to an embodiment of the present invention.
Fig. 6 is a top view of a stirring disposal mechanism of a multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to an embodiment of the invention.
Fig. 7 is a top view of a cooling disposal mechanism of a multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to an embodiment of the invention.
Fig. 8 is a diagram of a stirring piece structure of a multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to an embodiment of the invention.
Wherein, 1, tank body, 2, drop disposal unit, 21, bottom plate, 22, oleophobic coating, 23, asphalt sprayer, 24, baffle, 3, rotation disposal mechanism, 31, rotation barrel, 311, bump, 312, valve, 313, first valve, 32, automatic sprayer, 33, blower mechanism, 331, air inlet, 332, air outlet, 333, ventilation pipe, 334, volute, 3341, impeller, 3342, bearing, 34, chassis, 341, air duct, 342, inlet, 4, stirring disposal mechanism, 41, stirring paddle, 411, stirring shaft, 412, disc, 42, connecting pipeline, 43, infrared heater, 44, second valve, 5, cooling disposal mechanism, 51, cooling tank, 52, stirring piece, 521, rotation paddle, 522, connecting shaft, 523, motor, 53, asphalt spraying pipe, 54, liquid nitrogen cooling chamber, 55, delivery port, 56, third valve, 6, base piece, 61, stirring device, 62, asphalt storage chamber, 621, asphalt feed port, 622, fifth valve, 623, sixth valve, 631, fourth valve, 641, and garbage storage tank.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Embodiment 1, referring to fig. 1 to 8, is a first embodiment of the present invention, and provides a multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium, wherein a drop disposal unit 2 is connected below a waste fly ash storage tank 63, the drop disposal unit 2 has a spiral structure, and a rotary disposal mechanism 3 is mounted below the drop disposal unit 2.
The falling disposal unit 2 primarily disposes the waste fly ash, and the waste fly ash-asphalt material spirally falls from the upper part of the falling disposal unit 2 to the bottom through the action of gravity, and the waste fly ash-asphalt material is blocked by the baffle 24 and falls into the rotary disposal mechanism 3, so that the interactive waste fly ash and asphalt are further mixed, and the problem that heavy metals in the waste fly ash cannot be fully disposed and sealed under the primary mixing of asphalt and the waste fly ash in the falling disposal unit 2 is avoided.
The side of the falling disposal unit 2 is provided with a group of asphalt sprayers 23, the bottom plate 21 and the tank body 1 are fixedly connected, the bottom plate 21 and the tank body 1 are directly connected together, the bottom plate 21 is circular in overlooking, a heating rod is arranged in the bottom plate 21, heat is directly transferred to the bottom plate 21 and asphalt during heating, and the flow of the asphalt is promoted. The heating rod is made of ceramic heating elements, has the advantages of rapid heating, high heat efficiency, long service life and the like, and can adapt to frequent heating and cooling processes. The surface of the bottom plate 21 is covered with a layer of oleophobic coating 22, the oleophobic coating 22 is made of Polytetrafluoroethylene (PTFE), and the PTFE has excellent oleophobic performance and chemical stability, can effectively prevent adhesion of asphalt and oil substances, and has good high temperature resistance and corrosion resistance. The low coefficient of friction of oleophobic coating 22 also reduces the frictional resistance of the mix on the floor, improves the operating efficiency of the device, and protects floor 21 from chemical corrosion and mechanical wear, extending the service life of the device, so that the asphalt and waste fly ash mix smoothly passes through under the action of gravity to rotary disposal mechanism 3.
Preferably, the outer edge of the falling disposal unit 2 is welded with a circle of asphalt storage chamber 62, and the asphalt sprayer 23 obtains asphalt through the asphalt storage chamber 62 and sprays the asphalt to the falling disposal unit 2. The electric heating plate is arranged on the inner wall of the asphalt storage chamber 62 to heat asphalt, and is made of stainless steel, the stainless steel is not easy to be corroded by asphalt and has higher high temperature resistance, and a plurality of smaller heating plates are combined and installed at different positions of the inner wall. The top of the falling disposal unit 2 is connected with a waste fly ash storage tank 63, a fourth valve 631 is arranged at the bottom of the waste fly ash storage tank 63, waste fly ash in the waste fly ash storage tank 63 is led into the falling disposal unit 2 through the fourth valve 631, the bottom of the waste fly ash storage tank 63 is obliquely arranged, and an oleophobic coating layer is arranged on the surface of the waste fly ash storage tank 63, so that the waste fly ash can conveniently fall into the falling disposal unit 2 from the waste fly ash storage tank 63.
Preferably, as shown in fig. 1,3, 4 and 5, the rotary disposal mechanism 3 is provided with asphalt conveying pipes 64 connected with the asphalt storage chamber 62 around, and the asphalt conveying pipes 64 convey asphalt in the asphalt storage chamber 62 to the stirring disposal mechanism 4 to further dispose heavy metals in the waste fly ash. The ventilation pipes 333 are welded at the positions of the two sides of the rotary treatment mechanism 3 connected with the tank body 1, air is introduced into the air guide pipes 341 in the rotary treatment mechanism 3 through the air blowing mechanism 33, the air blowing mechanism 33 adopts an impeller 3341 made of high-strength engineering plastics and a volute 334 made of stainless steel materials, the air blowing mechanism 33 is arranged on the side surface of the rotary treatment mechanism 3, stable air flow is provided through the air inlet 331 and the air outlet 332, and the uniform distribution of the garbage fly ash-asphalt materials in the rotary barrel 31 is ensured. Engineering plastics have good corrosion resistance and mechanical strength, and stainless steel has good high temperature resistance and corrosion resistance. The air duct 341 ventilates the air to the rotary barrel 31 through the air valve 312 at the bottom of the rotary barrel 31, so that the garbage fly ash at the bottom of the rotary barrel 31 is sprayed to the upper layer, and the air duct is matched with the automatic spray head 32 to further interactively mix and treat heavy metals in the garbage fly ash. The bottom of the rotary barrel 31 is also provided with 8 convex blocks 311, the convex blocks 311 and the air valves 312 are arranged in a staggered manner, the convex blocks 311 are provided with heating rods which are the same as those in the bottom plate 21 to heat the garbage fly ash-asphalt material in the rotary barrel 31, the convex blocks 311 have a certain stirring effect and can increase the surface area of the mixture of asphalt and garbage fly ash, the automatic spray head 32 is better used for treating and sealing heavy metals in the garbage fly ash, and the automatic spray head 32 is made of stainless steel materials. The stainless steel has good corrosion resistance and mechanical strength, and can bear the spraying and long-term use of high-temperature asphalt. The heating cable is provided in the inner wall of the rotary tub 31 in a spiral arrangement, and can uniformly supply heat to the rotary tub 31 and the inside refuse fly ash-asphalt material while the rotary tub 31 is rotated.
Preferably, a chassis 34 is arranged below the rotary barrel 31, the chassis 34 is fixedly connected with the periphery of the tank body 1, 4 access openings 342 are arranged at the connecting positions to convey the garbage fly ash-asphalt material in the rotary barrel 31 into the stirring disposal mechanism 4, and when the chassis 34 connected with the tank body 1 near the access openings 342 is close to the access openings 342, the height of the chassis 34 is inclined from high to low to the access openings 342 so that the garbage fly ash-asphalt material can flow to the stirring disposal mechanism 4 better.
When the device is used, the stirring shaft 411 is rotated under the driving of the stirring device 61, so that the rotary barrel 31 in the rotary disposal mechanism 3 is rotated, and the disposal and sealing of heavy metals in the garbage fly ash are completed by matching with the automatic spray head 32. During the rotation of the rotary barrel 31, the automatic spray head 32 continuously sprays, and under the action of the air blowing mechanism 33, the air valve 312 at the bottom is opened to spray the garbage fly ash-asphalt material at the bottom to the upper layer to receive the spraying treatment of the automatic spray head 32, so as to ensure that the garbage fly ash which is not fully treated in the spiral falling treatment unit 2 is further treated and sealed. Further, after the rotational disposal is completed, the first valve 313 provided in the rotary tub 31 is opened so that the refuse fly ash-asphalt material flows to the chassis 34 below the rotary tub 31, and thus flows to the agitation disposal mechanism 4 below through the inlet 342 along the chassis 34.
In embodiment 2, as shown in fig. 6, the bottom of the stirring shaft 411 is connected to a disc 412, four stirring paddles 41 are arranged on the outer side of the disc 412, and 4 groups of connecting pipes 42 are arranged on the periphery of the stirring paddles 41, so that the garbage fly ash-asphalt material in the rotary disposal mechanism 3 can flow into the stirring disposal mechanism 4 for further disposal, the 4 groups of connecting pipes 42 can be matched with the asphalt conveying pipe 64, and when the garbage fly ash-asphalt material is introduced into the connecting pipes 42, the garbage fly ash-asphalt material is further flushed into the stirring disposal mechanism 4 for further disposal and sealing. The heating cable is arranged at the bottom of the stirring treatment mechanism 4 in a spiral mode, so that the stirring treatment mechanism 4 heats asphalt while stirring to prevent the asphalt from cooling and solidifying. The heating element of the infrared heater 43 above the stirring paddle 41 is a quartz tube heating element which has higher heating efficiency and stable infrared emissivity, the asphalt is heated in the stirring process to keep good fluidity, and the bottom of the stirring disposal mechanism 4 is provided with a second valve 44, so that the garbage fly ash-asphalt material after stirring disposal can be sent into the cooling disposal mechanism 5. Two stirring pieces 52 are arranged at the top of the cooling treatment mechanism 5 to throw the garbage fly ash-asphalt material flowing down in the stirring treatment mechanism 4 into a surrounding cooling tank 51.
As shown in fig. 7, a liquid nitrogen cooling chamber 54 is connected to the outer wall of the cooling tank 51, and the liquid nitrogen cooling chamber 54 is made of a high-strength aluminum alloy material. The liquid nitrogen cooling chamber 54 is provided outside the cooling tank 51, and can rapidly lower the temperature of the fly ash-asphalt material of the refuse by the rapid cooling action of liquid nitrogen, thereby ensuring rapid solidification thereof. As shown in fig. 8, the connection shaft 522 is rotated to drive the rotating paddle 521 to rotate under the drive of the motor 523, so that the waste fly ash-asphalt material falling from the stirring and disposing mechanism 4 is finally stirred and disposed, two asphalt spraying pipes 53 are provided on both sides of the stirring member 52, a third valve 56 is provided at the bottom of the cooling tank 51, and finally the waste fly ash-asphalt material reaches the material storage tank 65 through the third valve 56.
In use, after the interactive mixing of the waste fly ash and the rotary disposal mechanism 3 by the falling disposal unit 2, the waste fly ash-asphalt material flows down from the connecting pipeline 42, meanwhile, the sixth valve 641 in the asphalt conveying pipe 64 is opened, asphalt is flushed out from the bottom of the asphalt conveying pipe 64, the waste fly ash-asphalt material is flushed into the stirring disposal mechanism 4 for stirring disposal, the second valve 44 at the bottom of the stirring disposal mechanism 4 is opened after the stirring is completed, and the waste fly ash-asphalt material flows into the cooling disposal mechanism 5. Two asphalt spraying pipes 53 are provided at both sides of the stirring member 52, and asphalt is sprayed through the asphalt spraying pipes 53. The stirring piece 52 throws the waste fly ash-asphalt material toward the cooling tank 51, and the asphalt spraying pipe 53 sprays asphalt for final spraying treatment, and finally the waste fly ash-asphalt material in the cooling tank 51 is cooled and coagulated into a block under the action of the liquid nitrogen cooling chamber 54. After the cooling treatment is completed, the third valve 56 at the bottom of the cooling treatment mechanism 5 is opened, the garbage fly ash-asphalt material falls into the material storage tank 65, and after the material storage tank 65 is filled, the external sliding door is opened, and the material storage tank 65 is taken out.
Example 3 for the fourth example of the present invention, a certain amount of fly ash from a cloth bag of a refuse incineration plant was taken and its basic components and heavy metal content were measured. After the fly ash is treated by the multi-layer three-dimensional disposal device for the waste fly ash based on the asphalt medium, the waste fly ash-asphalt material after multi-dimensional disposal is taken out from the storage tank for the waste fly ash-asphalt material, and is manufactured into a test block with the size of 40mm multiplied by 50mm, the heavy metal leaching concentration is measured, and the inhibition rate of the device for leaching the heavy metal of the waste fly ash is calculated by the heavy metal leaching concentration of the waste fly ash before and after disposal by the device.
Comparative example 1
The cement is adopted to solidify the waste fly ash, and the inhibition rate of the cement to the leaching of the heavy metal in the waste fly ash is calculated according to the leaching concentration of the heavy metal in the waste fly ash before and after the cement is solidified. The garbage fly ash is derived from cloth bag fly ash of a certain garbage incineration power plant in China, and the basic components and the heavy metal content of the garbage fly ash are measured. The cement type is 42.5# ordinary Portland cement, 200g of cement is added into 1000g of garbage fly ash, fully and uniformly stirred in a stirring pot, the cement is solidified, the fly ash is poured into a mould with the size of 40mm multiplied by 50mm to prepare a test block, and after vibration molding on a vibration table, the test block is cured for 28d under indoor standard curing conditions (the relative humidity of the curing environment is kept above 95 percent, and the temperature is kept at 20 ℃ plus or minus 2 ℃).
Comparative example 2
And (3) solidifying the waste fly ash by using asphalt, and calculating the inhibition rate of asphalt on the leaching of the heavy metals in the waste fly ash according to the leaching concentration of the heavy metals in the waste fly ash before and after the asphalt is solidified. The garbage fly ash is derived from cloth bag fly ash of a certain garbage incineration power plant in China, and the basic components and the heavy metal content of the garbage fly ash are measured. Asphalt of AH-70 weight road asphalt type, adding 600g of asphalt into 1000g of garbage fly ash, stirring and mixing the asphalt and the fly ash for 3 minutes at 160 ℃ by adopting an asphalt mixing pot, and finally pouring the garbage fly ash-asphalt cement into a mould with the thickness of 40mm multiplied by 50mm to prepare a test block.
Comparative example 3
And solidifying the waste fly ash by using a chelating agent, and calculating the inhibition rate of the chelating agent on the leaching of the heavy metals in the waste fly ash according to the leaching concentration of the heavy metals in the waste fly ash before and after solidification of the chelating agent. The garbage fly ash is derived from cloth bag fly ash of a garbage incineration power plant in Guangdong, and the basic components and the heavy metal content of the garbage fly ash are measured. The main component of the chelating agent is dimethyl dithiocarbamate, 40g of the chelating agent is added into 1000g of garbage fly ash, and the garbage fly ash and the chelating agent are fully mixed in a mixer for 10min (the temperature is controlled at 20-30 ℃) to prepare a test block with the size of 40mm multiplied by 50 mm.
The heavy metal leaching concentrations of Pb, cr, cd, ni, cu and Zn in the raw fly ash of example 1, comparative example 2, and comparative example 3 were determined according to "solid waste leaching toxicity leaching method acetic acid buffer solution method" (HJ/T300-2007). Sample preparation and heavy metal leaching concentration tests were performed on the solidified test pieces in example 1, comparative example 2 and comparative example 3 using the solid waste leaching toxicity leaching method sulfuric acid nitric acid method (HJ/T299-2007), and heavy metal leaching concentrations of different samples were obtained. Calculating the corresponding heavy metal leaching inhibition rate by adopting leaching concentration, wherein the heavy metal leaching inhibition rate is = ("A")) X 100%, C Front part is the concentration of heavy metal leached from the waste fly ash before curing, C Rear part (S) is the concentration of heavy metal leached from the waste fly ash after curing, and the test results are shown in table one and table two below:
TABLE I refuse fly ash heavy metal leaching concentration of examples and comparative examples
TABLE II refuse fly ash heavy metal leaching inhibition ratio of examples and comparative examples
According to the table two, the inhibition rate of leaching of each heavy metal element of the waste fly ash of the test block prepared after treatment by the device is obviously improved compared with that of the comparative example 1 (solidified by cement), the comparative example 2 (solidified by asphalt) and the comparative example 3 (solidified by chelating agent), and the average improvement ranges are 23.45%, 21.75% and 22.48%, respectively, so that the multi-layer three-dimensional treatment device for the waste fly ash based on the asphalt medium can greatly reduce leaching of heavy metals in the waste fly ash.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (10)
1. A multi-layer three-dimensional disposal device for garbage fly ash based on asphalt medium is characterized by comprising,
A tank body (1);
A falling treatment unit (2) arranged above the tank body (1), wherein the falling treatment unit (2) comprises a bottom plate (21), an oleophobic coating (22) arranged on the surface of the bottom plate (21), an asphalt sprayer (23) arranged on the inner wall of the tank body (1), and a baffle plate (24) arranged at the lower end of the bottom plate (21);
A rotary disposal mechanism (3) positioned below the falling disposal unit (2), wherein the rotary disposal mechanism (3) comprises a rotary barrel (31) positioned in the middle of the tank body (1), an automatic spray head (32) positioned above the rotary barrel (31), a blast mechanism (33) arranged on the side surface of the rotary barrel (31), and a chassis (34) arranged below the rotary barrel (31);
A stirring treatment mechanism (4) positioned below the rotary treatment mechanism (3), a cooling treatment mechanism (5) arranged below the stirring treatment mechanism (4), and a base piece (6) arranged on the tank body (1).
2. The multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to claim 1, wherein a plurality of protruding blocks (311) are arranged on the inner wall of the bottom of the rotary barrel (31), air valves (312) are arranged between the protruding blocks (311), and a first valve (313) is arranged at the bottom of the rotary barrel (31).
3. The multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to claim 2, wherein the air blowing mechanism (33) comprises an air inlet (331) formed on the inner wall of the tank body (1), a ventilation pipe (333) communicated with the air inlet (331), and an air outlet (332) connected with the other end of the ventilation pipe (333);
The air blowing mechanism (33) further comprises a volute (334) arranged in the middle of the ventilation pipe (333);
an impeller (3341) and a bearing (3342) connected with the impeller (3341) are arranged in the volute (334).
4. The multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to claim 3, wherein a plurality of groups of air ducts (341) are arranged inside the chassis (34), and an access opening (342) is reserved on the surface of the chassis (34);
wherein, air duct (341) links to each other with air outlet (332).
5. A multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to claim 4, wherein the stirring disposal mechanism (4) comprises a stirring paddle (41), a connecting pipeline (42) arranged on the side surface of the stirring paddle (41), an infrared heater (43) positioned above the stirring paddle (41), and a second valve (44) arranged between the stirring paddle (41) and below;
The inner end of the stirring paddle (41) is provided with a disc (412), and the inside of the disc (412) is fixedly connected with a stirring shaft (411).
6. A multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to claim 5, wherein the cooling disposal mechanism (5) comprises a cooling tank (51) arranged below the tank body (1), a stirring piece (52) arranged above the cooling tank (51), an asphalt spraying pipe (53) arranged on the side surface of the stirring piece (52), and a liquid nitrogen cooling chamber (54) arranged outside the cooling tank (51), and the cooling disposal mechanism (5) further comprises a conveying port (55) arranged on the side surface of the liquid nitrogen cooling chamber (54), and a third valve (56) arranged at the bottom of the cooling tank (51).
7. The multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to claim 6, wherein the stirring piece (52) comprises a rotating paddle (521) arranged on the upper side inside the cooling tank (51) and close to the second valve (44), a connecting shaft (522) for connecting the rotating paddle (521), and a motor (523) arranged on the surface of the cooling tank (51).
8. The multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to claim 7, wherein the base member (6) comprises a stirring device (61), an asphalt storage chamber (62) positioned on the side surface of the upper end of the tank body (1), and a waste fly ash storage tank (63) positioned on the upper end of the tank body (1);
the base member (6) further comprises an asphalt delivery pipe (64) connected below the asphalt storage chamber (62), and a material storage tank (65) located at the lower end of the tank body (1).
9. The multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to claim 8, wherein a fourth valve (631) is arranged at the bottom of the waste fly ash storage tank (63), and a waste fly ash feed inlet (632) is arranged above the waste fly ash storage tank (63);
Wherein the bottom surface of the garbage fly ash storage tank (63) is obliquely arranged;
An asphalt feeding port (621) is reserved at the outer side of the asphalt storage chamber (62), a fifth valve (622) is arranged between the asphalt storage chamber (62) and the asphalt conveying pipe (64), and a sixth valve (623) is arranged between the asphalt storage chamber (62) and the automatic spray head (32).
10. The multi-layer three-dimensional disposal device for waste fly ash based on asphalt medium according to claim 9, wherein the asphalt delivery pipe (64) is connected with the stirring disposal mechanism (4) through a sixth valve (641).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510478922.1A CN119972723B (en) | 2025-04-16 | 2025-04-16 | Multi-layer three-dimensional disposal device for garbage fly ash based on asphalt medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510478922.1A CN119972723B (en) | 2025-04-16 | 2025-04-16 | Multi-layer three-dimensional disposal device for garbage fly ash based on asphalt medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119972723A true CN119972723A (en) | 2025-05-13 |
| CN119972723B CN119972723B (en) | 2025-08-15 |
Family
ID=95645207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510478922.1A Active CN119972723B (en) | 2025-04-16 | 2025-04-16 | Multi-layer three-dimensional disposal device for garbage fly ash based on asphalt medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119972723B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121755523A (en) * | 2026-01-12 | 2026-03-31 | 广东工业大学 | Uniform spraying device for asphalt on surface of garbage fly ash with controlled amount |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0949207A (en) * | 1995-08-07 | 1997-02-18 | Hokuriku Asukon Kk | Aggregate recovery method and equipment for asphalt waste |
| JPH09225431A (en) * | 1996-02-23 | 1997-09-02 | Hitachi Zosen Corp | Fly ash treatment method and equipment in refuse incineration facility |
| CN104874587A (en) * | 2015-05-27 | 2015-09-02 | 石狮市鸿峰环保生物工程有限公司 | System for treatment of fly ash from waste incineration |
| CN105693123A (en) * | 2016-03-10 | 2016-06-22 | 重庆三峰环境产业集团有限公司 | Method for realizing co-granulation of household garbage incineration fly ash as well as cement, silica fume and coal ash and clean application of household garbage incineration fly ash to asphalt pavement |
| CN106167689A (en) * | 2016-07-20 | 2016-11-30 | 陈刚才 | A kind of incineration firing flying dust bituminous concrete binding material and bituminous concrete |
| CN109174906A (en) * | 2018-08-31 | 2019-01-11 | 浙江理工大学 | A kind of apparatus and method solidifying flying dust |
-
2025
- 2025-04-16 CN CN202510478922.1A patent/CN119972723B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0949207A (en) * | 1995-08-07 | 1997-02-18 | Hokuriku Asukon Kk | Aggregate recovery method and equipment for asphalt waste |
| JPH09225431A (en) * | 1996-02-23 | 1997-09-02 | Hitachi Zosen Corp | Fly ash treatment method and equipment in refuse incineration facility |
| CN104874587A (en) * | 2015-05-27 | 2015-09-02 | 石狮市鸿峰环保生物工程有限公司 | System for treatment of fly ash from waste incineration |
| CN105693123A (en) * | 2016-03-10 | 2016-06-22 | 重庆三峰环境产业集团有限公司 | Method for realizing co-granulation of household garbage incineration fly ash as well as cement, silica fume and coal ash and clean application of household garbage incineration fly ash to asphalt pavement |
| CN106167689A (en) * | 2016-07-20 | 2016-11-30 | 陈刚才 | A kind of incineration firing flying dust bituminous concrete binding material and bituminous concrete |
| CN109174906A (en) * | 2018-08-31 | 2019-01-11 | 浙江理工大学 | A kind of apparatus and method solidifying flying dust |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121755523A (en) * | 2026-01-12 | 2026-03-31 | 广东工业大学 | Uniform spraying device for asphalt on surface of garbage fly ash with controlled amount |
| CN121755523B (en) * | 2026-01-12 | 2026-07-17 | 广东工业大学 | Uniform spraying device for asphalt on surface of garbage fly ash with controlled amount |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119972723B (en) | 2025-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN119972723B (en) | Multi-layer three-dimensional disposal device for garbage fly ash based on asphalt medium | |
| CN107322799A (en) | A kind of concrete mixer of adjustable-angle for building | |
| CN210252562U (en) | A vertical mixer for the production of PE solid wall pipes for underground communication pipes | |
| CN117018940A (en) | Production method and production equipment of slow-release long-acting anti-icing material | |
| CN112791637B (en) | Mixing equipment for producing asphalt concrete and asphalt concrete production method | |
| CN115634919B (en) | Ex situ soil remediation treatment device and method | |
| CN216422994U (en) | A concrete mixing device for building construction | |
| CN213890575U (en) | Concrete compounding device with protective structure | |
| CN207058908U (en) | A kind of cement mixing equipment for building | |
| CN112473471A (en) | Multilayer agitating unit for industrial chemicals | |
| CN104108851B (en) | Small-sized pressure-rotary sludge drying machine | |
| CN208979918U (en) | A kind of lock wind unloader | |
| CN102432360A (en) | Fusing and mixing device | |
| CN207271069U (en) | A kind of Wet-type spray formula dedusting and desulfurizing tower | |
| CN215027549U (en) | Novel cement kiln accurate spraying ammonia water denitration device | |
| CN211988073U (en) | Novel flue gas mixing device | |
| CN213273421U (en) | Carbon paste cooling device | |
| CN204022638U (en) | Small-sized pressure-rotary sludge drying machine | |
| CN209276549U (en) | A kind of mixing chute for melt steel slag high-temperature reconstruction | |
| CN115475490A (en) | Low-pollution-emission gas treatment device | |
| CN116272726A (en) | Device and method for increasing yield of polycarboxylate high-performance water reducer and preventing pollution | |
| CN208945157U (en) | A surface-modified nano-metal powder manufacturing device | |
| CN218753757U (en) | Water treatment biomass particle delivery device | |
| CN120919876B (en) | A mixing device for preparing polymer from fly ash from municipal solid waste incineration | |
| CN223534109U (en) | Polymeric ferric sulfate temporary storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |