CN209363256U - Kitchen garbage pretreatment system based on high-pressure extrusion - Google Patents
Kitchen garbage pretreatment system based on high-pressure extrusion Download PDFInfo
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- CN209363256U CN209363256U CN201821742080.8U CN201821742080U CN209363256U CN 209363256 U CN209363256 U CN 209363256U CN 201821742080 U CN201821742080 U CN 201821742080U CN 209363256 U CN209363256 U CN 209363256U
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- 238000001125 extrusion Methods 0.000 title claims abstract description 45
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 23
- 239000002002 slurry Substances 0.000 claims abstract description 98
- 239000012535 impurity Substances 0.000 claims abstract description 46
- 239000012071 phase Substances 0.000 claims abstract description 42
- 239000004576 sand Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000007790 solid phase Substances 0.000 claims abstract description 11
- 239000010806 kitchen waste Substances 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 41
- 238000004537 pulping Methods 0.000 claims description 21
- 238000000926 separation method Methods 0.000 claims description 20
- 239000007787 solid Substances 0.000 claims description 15
- 238000010411 cooking Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 230000008595 infiltration Effects 0.000 claims description 2
- 238000001764 infiltration Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 208000028659 discharge Diseases 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a kind of kitchen garbage pretreatment system based on high-pressure extrusion, comprising: splicing unit, screw conveyor, high-pressure extrusion sorting slurrying unit, slurry delivery pump, sand setting unit, the first slurries pump, impurity removing unit, the second slurries pump and water-oil separating unit；Wherein, splicing unit is equipped with kitchen garbage entrance, discharge port and percolate efferent duct, and discharge port is sequentially connect with screw conveyor, high-pressure extrusion sorting slurrying unit, slurry delivery pump, sand setting unit, the first slurries pump, impurity removing unit, the second slurries pump and water-oil separating unit；The percolate efferent duct of splicing unit is connect with sand setting unit；Water-oil separating unit is respectively equipped with oily mutually outlet, water phase outlet and solid-phase outlet.The system pretreating effect is good, and easy to operate, equipment takes up little area, and overall investment and maintenance cost are low, and operating cost is low.
Description
Technical Field
The utility model relates to a solid waste handles the field, especially relates to a carry out kitchen garbage preliminary treatment system based on high pressure extrusion to kitchen garbage.
Background
The kitchen waste in China is complex in components, except food waste, the kitchen waste mostly contains chopping blocks, cutters, plastic, foam and other substances, and meanwhile due to the fact that residents are not strong in classification consciousness, the kitchen waste is difficult to classify and collect in the collecting and transporting process, and great difficulty is brought to the follow-up treatment of the kitchen waste. Therefore, a large number of pretreatment processes are required to be arranged in front of each kitchen waste treatment technology at present, and the pretreatment processes generally comprise crushing, sorting, impurity removal and the like.
Chinese patent CN207307999U discloses a kitchen waste crushing and pulping device, the scheme of which mainly utilizes the grinding effect of a grinding device to crush and pulp. The device has higher requirements on the applicability of kitchen waste raw materials, and is unsatisfactory to some impurity treatment effects that the wearability is higher among the kitchen waste, and the device has higher requirements on the material of sieve in grinding ball and the device simultaneously, needs to guarantee the wearability of material.
Chinese patent CN108015099A discloses a kitchen waste pretreatment process and system based on two-stage extrusion technology, including: a solid-liquid primary separation step; a primary extrusion step; a high-pressure extrusion separation step; a step of discharging sand from the buffer pool; removing impurities; extracting oil from the fine slurry; and (5) impurity removing. Compared with the conventional pretreatment process, the scheme has certain advantages, but has the problems that the actual removal effect is poor, the follow-up material still contains department sandy impurities, and the follow-up treatment equipment is abraded to a certain degree due to the fact that the buffer tank is used for sand discharge treatment.
SUMMERY OF THE UTILITY MODEL
Based on the problem that prior art exists, the utility model aims at providing a kitchen garbage pretreatment system based on high-pressure extrusion, its resourceization level is high, environmental benefit is good, economic benefits is good, has solved that current kitchen garbage pretreatment system pretreatment process is complicated, the raw materials suitability is poor, the resourceization level is low, the edulcoration inefficiency scheduling problem.
The utility model aims at realizing through the following technical scheme:
the utility model discloses embodiment mode a kitchen garbage pretreatment system based on high pressure extrusion, include:
the device comprises a material receiving unit, a screw conveyor, a high-pressure extrusion sorting pulping unit, a slurry conveying pump, a sand setting unit, a first slurry pump, an impurity removing unit, a second slurry pump and an oil-water separating unit; wherein,
the material receiving unit is provided with a kitchen waste inlet, a material outlet and a percolate output pipe, and the material outlet is sequentially connected with the screw conveyor, the high-pressure extrusion sorting pulping unit, the slurry conveying pump, the sand settling unit, the first slurry pump, the impurity removing unit, the second slurry pump and the oil-water separation unit;
a percolate output pipe of the receiving unit is connected with the sand setting unit;
the oil-water separation unit is respectively provided with an oil phase outlet, a water phase outlet and a solid phase outlet.
By the foregoing the utility model provides a technical scheme can see out, the embodiment of the utility model provides a kitchen garbage pretreatment systems based on high-pressure extrusion, its beneficial effect is:
connect the material unit through setting up organic connection, screw conveyer, pulping unit is selected separately in high pressure extrusion, the thick liquids delivery pump, the sand setting unit, first thick liquids pump, the edulcoration unit, second thick liquids pump and water oil separating unit, constitute a system of preliminary treatment kitchen garbage, can connect material in proper order to kitchen garbage and remove filtration liquid, pulping is selected separately in high pressure extrusion, the sand setting, processing such as edulcoration and water oil separating, the effective preliminary treatment to kitchen garbage has been realized, avoid the improper moisture that leads to of kitchen garbage preliminary treatment, oiliness is high and impurity is many, the problem of the follow-up processing of being not convenient for. The system has the advantages of uncomplicated structure, small occupied area, high treatment efficiency and good treatment effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a kitchen waste pretreatment system provided by an embodiment of the present invention;
fig. 2 is a schematic diagram of a specific configuration of a kitchen waste pretreatment system provided by an embodiment of the present invention;
fig. 3 is a flow chart of a treatment process of the kitchen waste pretreatment system provided by the embodiment of the present invention;
in fig. 1: 101-a material receiving unit; 102-a screw conveyor; 103-high pressure extrusion sorting pulping unit; 104-a slurry transfer pump; 105-a sand setting unit; 106 — first slurry pump; 107-an impurity removal unit; 108-a second slurry pump; 109-an oil-water separation unit; 110-a second screw conveyor; 12-an oil storage tank; 13-homogenizing the slurry tank; a, a kitchen waste inlet; b-solid phase outlet; c-oil phase outlet; a D-aqueous phase outlet;
in fig. 2: 1-a receiving hopper; 2-percolation liquid pool; 3-odor collecting cover; 4-high pressure extruder; 5-sand settling machine; 6-material buffer tank; 7-a shaker; 8-slurry buffer tank; 9-a steam ejector; 10-a cooking pot; 11-a three-phase separator; 12-an oil storage tank; 13-homogenate tank.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Details not described in the embodiments of the present invention belong to the prior art known to those skilled in the art.
As shown in fig. 1 and 2, the utility model discloses embodiment one kind is based on high-pressure extruded kitchen garbage pretreatment system, is a pretreatment systems who is applicable to kitchen garbage anaerobic fermentation, and the processing procedure that can solve current kitchen garbage pretreatment system existence is complicated, and the raw materials suitability is poor, edulcoration inefficiency, resourceful effect subalternation problem, include:
the device comprises a material receiving unit, a screw conveyor, a high-pressure extrusion sorting pulping unit, a slurry conveying pump, a sand setting unit, a first slurry pump, an impurity removing unit, a second slurry pump and an oil-water separating unit; wherein,
the material receiving unit is provided with a kitchen waste inlet, a material outlet and a percolate output pipe, and the material outlet is sequentially connected with the screw conveyor, the high-pressure extrusion sorting pulping unit, the slurry conveying pump, the sand settling unit, the first slurry pump, the impurity removing unit, the second slurry pump and the oil-water separation unit;
a percolate output pipe of the receiving unit is connected with the sand setting unit;
the oil-water separation unit is respectively provided with an oil phase outlet, a water phase outlet and a solid phase outlet.
Among the above-mentioned pretreatment systems, connect the material unit to include:
a receiving hopper and an infiltration liquid pool;
the kitchen waste inlet is arranged at the upper part of the side wall of the receiving hopper, and the discharge hole is arranged at the bottom of the side wall of the receiving hopper; the top of the receiving hopper is provided with a sealed gas-collecting hood for collecting odor;
a percolate outlet is formed in the bottom of the receiving hopper, the percolate pool is arranged below the percolate outlet, and the percolate outlet corresponds to an upper opening of the percolate pool;
the leachate tank is internally connected with a leachate output pipe, and the leachate output pipe is connected with a material cache tank of the sand setting unit.
In the pretreatment system, the high-pressure extruding, sorting and pulping unit adopts a high-pressure extruder. Preferably, the diameter of a through hole on the surface of an extrusion cavity of the high-pressure extruder is 3-6 mm; and the extrusion pressure is 10-20 MPa.
In the pretreatment system, the sand setting unit includes: a sand settling machine and a material buffer tank;
wherein, sand setting machine with the material buffer tank is connected in order.
In the pretreatment system, the impurity removal unit includes: an impurity remover and a slurry buffer tank; wherein, the shaker with the thick liquid surge-box is connected in order.
In the pretreatment system, the oil-water separation unit includes: a steam ejector, a cooking pot and a three-phase separator; wherein the steam ejector, the cooking pot and the three-phase separator are connected in sequence;
the front end of the steam ejector is provided with a slurry inlet;
the three-phase separator is respectively provided with an oil phase outlet, a water phase outlet and a solid phase outlet.
Further, the pretreatment system further comprises: an oil storage tank and a homogenate tank;
the oil storage tank is connected with an oil phase outlet of the three-phase separator;
the slurry homogenizing tank is connected with the water phase outlet of the three-phase separator.
Further, the pretreatment system further comprises: and the second screw conveyer is connected with the solid impurity outlet of the high-pressure extrusion separation pulping unit.
The utility model discloses a kitchen garbage pretreatment system, main beneficial effect as follows:
(1) the system fully utilizes the moisture contained in the kitchen waste, and applies the kitchen waste to the crushing pulping unit and the impurity removal unit by means of internal recycling, so that compared with the traditional method, the system saves a large amount of exogenous water; meanwhile, the subsequent wastewater treatment capacity can be greatly reduced, and the treatment cost is saved.
(2) The system adopts a high-pressure extrusion technology to treat the kitchen waste, integrates various functions of crushing, sorting, pulping and the like, reduces the pretreatment flow, and avoids the fault problem possibly caused by the connection of a plurality of devices.
(3) The system has the advantages of simple operation, small occupied area of equipment, low overall investment and maintenance cost and low operation cost.
(4) The system extracts the crude oil with higher content in the kitchen waste to be sold as a product, so that the wastewater treatment pressure is reduced on one hand, and the product value is improved on the other hand.
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and 2, the embodiment of the utility model provides a kitchen garbage pretreatment system based on high pressure extrusion, include: the system comprises a material receiving unit 101, a screw conveyor 102, a high-pressure extrusion sorting pulping unit 103, a slurry conveying pump 104, a sand setting unit 105, a first slurry pump 106, an impurity removing unit 107, a second slurry pump 108 and an oil-water separating unit 109; the structure and function of each unit are as follows (see fig. 2, and fig. 2 does not show a screw conveyer, a slurry conveying pump, a first slurry pump and a second slurry pump):
(1) connect the material unit:
this connect material unit mainly includes: the receiving hopper 1 and the percolate pool 2 are used for receiving, temporarily storing and conveying the kitchen waste. The kitchen waste enters a receiving hopper after being collected and measured, and the volume of the receiving hopper is determined according to the treatment capacity of the kitchen waste. In addition, a sealed gas-collecting hood 3 is arranged at the top of the receiving hopper, and the tail end of the gas-collecting hood 3 is connected with a draught fan to keep negative pressure in the gas-collecting hood 3 and be used for collecting odor generated by the kitchen waste; the lower end of the receiving hopper 1 is provided with a drain hole and is connected with a percolate pool 2 through a pipeline, and the percolate pool is used for collecting percolate generated in the kitchen waste accumulation process; the materials entering the receiving hopper are conveyed to a high-pressure extrusion separation pulping unit through a screw conveyer;
(2) the high-pressure extrusion separation pulping unit:
the high-pressure extrusion sorting pulping unit mainly comprises: the high-pressure extruder 4 extrudes the kitchen waste by using pressure provided by a hydraulic system, so that the separation of organic slurry and solid impurities is realized, and the kitchen waste is divided into two parts, namely solid impurities and kitchen slurry; conveying the kitchen waste from the receiving hopper 1 into a high-pressure extruder 4 through a screw conveyor, extruding water and organic matter parts with high water content in the kitchen waste out of small holes (3-6 mm) on the surface of an extrusion cavity under the pressure of 10-20 MPa, and discharging other solid dry waste at a discharge outlet; the solid content of the separated solid impurities is generally about 40-50%, and the water content of the kitchen slurry is generally about 10-20%; solid impurities are transported and treated outside through a second screw conveyor, and the kitchen slurry is conveyed to a sand settling unit through a slurry conveying pump;
(3) a sand setting unit:
the sand setting unit mainly comprises: and the sand settling machine 5 and the material buffer tank 6 are used for removing heavy materials such as sand in the slurry and reducing the abrasion of sand impurities on subsequent equipment. The slurry automatically flows to a sand setting machine from a high-pressure extruder 4, the separated heavy substances such as sand are transported out as impurities, and the residual slurry in the sand setting machine 5 flows out in an overflow mode and enters a material buffer tank 6 for temporary storage; the discharged slurry of the sand setting unit is conveyed to an impurity removal unit through a first slurry pump;
(4) an impurity removal unit:
the edulcoration unit mainly includes: the impurity removing machine 7 and the pulp buffer tank 8 are used for removing light substances such as partial plastic sheets, fibers and the like in the pulp, so that subsequent oil-water separation equipment is protected; delivering the kitchen slurry to an impurity remover through a first slurry pump, carrying out outward treatment on separated impurities, and automatically flowing the residual slurry in the impurity remover to a slurry buffer tank 8; then the slurry is conveyed to an oil-water separation unit through a second slurry pump;
(5) an oil-water separation unit:
the oil-water separation unit mainly comprises: a steam ejector 9, a digester 10 and a three-phase separator 11 for separating the slurry into three phases of oil, water and solids. The slurry passing through the impurity removal unit is conveyed to a steam ejector 9 through a slurry pump to be mixed and heated with steam, the heating temperature is 70-80 ℃, then the slurry enters a cooking pot 10 to be cached, and after the cooking pot caches for about 1.5 hours, emulsified oil in the kitchen waste is fully released. Then the slurry enters a three-phase separator 11 and is divided into three phases of oil, water and solid through centrifugal action, wherein the water phase is conveyed to a homogenizing tank 13 through a pump, the oil phase enters an oil storage tank 12, and the solid phase and the water phase can enter the homogenizing tank together or be treated in other resource utilization modes.
The receiving hopper 1 comprises a kitchen waste inlet, a kitchen waste outlet and a percolate outlet; kitchen waste is conveyed to a high-pressure extruder 4 through a screw conveyor, percolate automatically flows to a percolate pool 2 through a pipeline, and generated odor is collected and treated by a sealed gas collecting hood through a draught fan.
The solid content of the percolate in the percolate pool 2 is generally about 4-8%, and the percolate pool contains at least 2 stirring devices and submersible sewage pumps. The percolate is conveyed to a material buffer tank 5 through a submersible sewage pump.
The high-pressure extruder 4 comprises a material inlet, a solid dry garbage outlet and a kitchen slurry outlet. The material inlet and the kitchen slurry outlet are respectively connected with the receiving hopper 1 and the sand settling machine 5 through the screw conveyer, and the solid dry garbage is transported and treated as impurities.
The sand settling machine 5 comprises a slurry inlet, an overflow trough and a sand discharge port. The slurry inlet is connected with the high-pressure extruder 4 through a screw conveyer, the overflow groove is connected with the material buffer tank 6 through a pipeline, and heavy particle impurities are discharged through the sand discharge port. The solid content of the feed of the sand settling machine 5 is not more than 10 percent, and the temperature is not lower than 40 ℃.
The impurity removing machine 7 comprises a slurry inlet, a slurry outlet and an impurity outlet; the slurry inlet and the slurry outlet are respectively connected with the material buffer tank 6 and the slurry buffer tank 8 through pipelines, and impurities are transported out; the slurry buffer tank 8 comprises a slurry inlet and a slurry outlet. The slurry inlet is connected with the impurity remover 7, the slurry outlet is provided with at least 2 slurry pumps, and the slurry is conveyed to the steam ejector 9;
the steam ejector 9 includes: a slurry inlet, a steam inlet, and a slurry outlet. The slurry inlet is connected to a slurry buffer tank 8 and the slurry outlet is connected to a digester 10.
The cooking pot 10 includes: agitating unit, thick liquid inlet, steam inlet and thick liquid export. The slurry inlet is connected with a steam ejector 9, the slurry outlet is provided with at least 2 slurry pumps, and the slurry is conveyed to a three-phase separator 11.
The three-phase separator 11 includes: a slurry inlet, an oil phase outlet, a water phase outlet and a solid phase outlet. The slurry inlet is connected with a cooking tank 10, crude oil and fat separated from the slurry is conveyed to an oil storage tank 12 through a pump, and separated water phase is conveyed to a slurry homogenizing tank 13 through a pump.
Examples
Adopt the utility model discloses pretreatment systems handles kitchen garbage (200t/d, TS ═ 15%), mainly includes following step (see fig. 2, fig. 3):
(1) receiving materials:
kitchen waste (200t/d, TS ═ 15%) is collected, fed into a factory, metered and fed into a receiving hopper, and the volume of the receiving hopper is 50m3. Odor generated in the process of stockpiling the kitchen waste is collected in a sealed gas-collecting hood 3 at the top of a receiving hopper 1 under the action of negative pressure; the resulting percolate (80t/d, TS ═ 5%) flows via the drainage opening at the lower end of the receiving funnel 1 to the percolate storage 2. The residual kitchen waste (120t/d, TS ═ 21.7%) in the receiving hopper 1 is conveyed to a high-pressure extruder 4 for large material sorting through a screw conveyer;
(2) high-pressure extrusion pulping:
the kitchen waste (120t/d, TS ═ 21.7%) coming from the receiving hopper 1 is divided into two parts in the high-pressure extruder 4: one part is kitchen slurry (104t/d, TS is 17.3%) passing through the sieve pores, and the main component is organic substances; the other part is solid dry garbage (16t/d, TS is 50%); the kitchen slurry and the percolate in the percolate pool 2 are both sent to a material buffer tank 5 and are uniformly mixed therein to form slurry (184t/d, 12%). The slurry is sent to a cleaner 6 by a pump;
(3) removing impurities:
the pulp (184t/d, TS ═ 12%) is subjected to impurity removal in an impurity remover 6 to remove a small amount of impurities such as plastic pieces and fibers (10t/d, TS ═ 30%), and the remaining pulp (174t/d, TS ═ 10.9%) is automatically flowed to a pulp buffer tank 7 and is conveyed to a cooking tank 8 by a pulp pump;
(4) cooking to remove oil:
heating the slurry (174t/d, TS ═ 10.9%) in a cooking tank 8 to 70-80 ℃ by steam (20t/d), buffering for about 1.5h, pumping the slurry (194t/d, TS ═ 9.8%) into a three-phase separator 9, separating into oil, water and solid phases by centrifugation, wherein the water phase (164.7t/d, TS ═ 8%) is pumped into a homogenizing tank 10, the oil phase (6t/d) enters a grease storage tank 11, and the solid phase (23.3t/d, TS ═ 25%) is transported out for resource treatment.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a kitchen garbage preliminary treatment system based on high pressure extrusion which characterized in that includes:
the device comprises a material receiving unit, a screw conveyor, a high-pressure extrusion sorting pulping unit, a slurry conveying pump, a sand setting unit, a first slurry pump, an impurity removing unit, a second slurry pump and an oil-water separating unit; wherein,
the material receiving unit is provided with a kitchen waste inlet, a material outlet and a percolate output pipe, and the material outlet is sequentially connected with the screw conveyor, the high-pressure extrusion sorting pulping unit, the slurry conveying pump, the sand settling unit, the first slurry pump, the impurity removing unit, the second slurry pump and the oil-water separation unit;
a percolate output pipe of the receiving unit is connected with the sand setting unit;
the oil-water separation unit is respectively provided with an oil phase outlet, a water phase outlet and a solid phase outlet.
2. The kitchen waste pretreatment system based on high-pressure extrusion as recited in claim 1, wherein the material receiving unit comprises:
a receiving hopper and an infiltration liquid pool;
the kitchen waste inlet is arranged at the upper part of the side wall of the receiving hopper, and the discharge hole is arranged at the bottom of the side wall of the receiving hopper;
the top of the receiving hopper is provided with a sealed gas-collecting hood for collecting odor;
a percolate outlet is formed in the bottom of the receiving hopper, the percolate pool is arranged below the percolate outlet, and the percolate outlet corresponds to an upper opening of the percolate pool;
and a percolate output pipe is connected in the percolate pond.
3. The high-pressure extrusion-based kitchen waste pretreatment system according to claim 1 or 2, wherein the high-pressure extrusion sorting pulping unit employs a high-pressure extruder.
4. The kitchen waste pretreatment system based on high-pressure extrusion as recited in claim 3, wherein the diameter of a through hole on the surface of an extrusion cavity of the high-pressure extruder is 3-6 mm; and the extrusion pressure is 10-20 MPa.
5. The kitchen waste pretreatment system based on high-pressure extrusion according to claim 1 or 2, wherein the sand settling unit comprises:
a sand settling machine and a material buffer tank; wherein,
the sand settling machine is connected with the material buffer tank in sequence.
6. The high-pressure extrusion-based kitchen waste pretreatment system according to claim 1 or 2, wherein the impurity removal unit comprises:
an impurity remover and a slurry buffer tank; wherein,
the shaker with the thick liquid baffle-box is connected in order.
7. The kitchen waste pretreatment system based on high-pressure extrusion as recited in claim 1, wherein said oil-water separation unit comprises:
a steam ejector, a cooking pot and a three-phase separator; wherein,
the steam ejector, the cooking pot and the three-phase separator are sequentially connected;
the front end of the steam ejector is provided with a slurry inlet;
the three-phase separator is respectively provided with an oil phase outlet, a water phase outlet and a solid phase outlet.
8. The kitchen waste pretreatment system based on high-pressure extrusion of claim 7, further comprising:
an oil storage tank and a homogenate tank; wherein,
the oil storage tank is connected with an oil phase outlet of the three-phase separator;
the slurry homogenizing tank is connected with the water phase outlet of the three-phase separator.
9. The kitchen waste pretreatment system based on high-pressure extrusion as recited in claim 1, further comprising: and the second screw conveyer is connected with the solid impurity outlet of the high-pressure extrusion separation pulping unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821742080.8U CN209363256U (en) | 2018-10-25 | 2018-10-25 | Kitchen garbage pretreatment system based on high-pressure extrusion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821742080.8U CN209363256U (en) | 2018-10-25 | 2018-10-25 | Kitchen garbage pretreatment system based on high-pressure extrusion |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877043A (en) * | 2019-12-16 | 2020-03-13 | 武汉百信环保能源科技有限公司 | Integrated kitchen waste pretreatment system and method |
| CN112757680A (en) * | 2019-11-01 | 2021-05-07 | 王树岩 | Kitchen waste material receiving and extruding all-in-one machine |
| CN113733631A (en) * | 2021-08-23 | 2021-12-03 | 义乌市深能再生资源利用有限公司 | Efficient sand and impurity removing and oil extracting method and system for kitchen waste |
| CN118143030A (en) * | 2024-04-09 | 2024-06-07 | 南京绿点环保科技有限公司 | Intelligent comprehensive treatment system and method for kitchen waste |
-
2018
- 2018-10-25 CN CN201821742080.8U patent/CN209363256U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757680A (en) * | 2019-11-01 | 2021-05-07 | 王树岩 | Kitchen waste material receiving and extruding all-in-one machine |
| CN110877043A (en) * | 2019-12-16 | 2020-03-13 | 武汉百信环保能源科技有限公司 | Integrated kitchen waste pretreatment system and method |
| CN113733631A (en) * | 2021-08-23 | 2021-12-03 | 义乌市深能再生资源利用有限公司 | Efficient sand and impurity removing and oil extracting method and system for kitchen waste |
| CN118143030A (en) * | 2024-04-09 | 2024-06-07 | 南京绿点环保科技有限公司 | Intelligent comprehensive treatment system and method for kitchen waste |
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