CN206437560U - Bucket elevator - Google Patents

Abstract

The utility model discloses a bucket elevator, which comprises a machine body provided with a feeding channel and a material discharging channel, the body is provided with a lifting channel, and the lifting channel includes a The bottom and the top connected with the discharge channel. When the material moves from the bottom to the top, the delivery channel is in the forward feeding state. When the material moves from the top to the bottom, the delivery channel is in the forward direction. The delivery channel is in the state of reverse blanking, and there is also a device on the body between the bottom and the top that is connected to the delivery channel and can control the material when the material is in the reverse blanking state. The depressurization and dust removal channel for the above-mentioned delivery channel to reduce the pressure to absorb the dust. Under the premise of not affecting the normal feeding, the bucket elevator can fundamentally and comprehensively solve the dust problem, avoiding material waste and health hazards and environmental pollution caused by the dust generated by the feeding channel.

Description

Bucket elevator

technical field

The utility model relates to the field of material transmission, in particular to a bucket elevator which is particularly suitable for transporting in the production of compound fertilizers.

Background technique

In the production of compound fertilizers, especially in the production of high-tower compound fertilizers, the bucket elevator is one of the main equipment used to lift the raw materials of compound fertilizers. Compared with other transmission equipment, it has large lifting capacity, low power consumption and simple structure. , The characteristics of low cost.

In the production of high-tower compound fertilizer, it is often necessary to use a bucket elevator to lift the material to a height of hundreds of meters, and then pour the material into the receiving tank. Since there is usually a certain gap between the receiving tank and the outlet of the bucket elevator, it is impossible for the material to completely enter the receiving tank, resulting in blanking. Materials falling from a height of hundreds of meters often cause the materials close to the bottom of the bucket elevator to fly out from the feeding channel. Material waste, and seriously endanger human health, and even cause serious environmental pollution.

In order to solve the above technical problems, those skilled in the art can easily think of setting a dust cover at the feed inlet of the bucket elevator. Although such a structure can play a certain role in reducing dust, it cannot be used without affecting the feeding operation. Under the premise of fundamentally solving the problem of dust.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a bucket elevator that can better solve the problem of dust.

In order to solve the above-mentioned technical problems, the technical solution adopted by the bucket elevator of the present utility model is:

Bucket elevator, including a body with a feed channel and a discharge channel, the body is provided with a delivery channel, and the delivery channel includes a bottom connected to the feed channel and a bottom connected to the discharge channel. The top of the channel conduction, when the material moves from the bottom to the top, the lifting channel is in the forward feeding state, and when the material moves from the top to the bottom, the lifting channel is in the reverse feeding state state, the machine body between the bottom and the top is also provided with the conduction with the delivery channel and can reduce the pressure of the delivery channel when the material is in the reverse blanking state. The pressure-reducing dust removal channel for absorbing dust.

Specifically, the depressurization and dust removal channel includes a depressurization and dust discharge pipe connected to the delivery channel and a dust removal device connected to the depressurization and dust discharge pipe.

Further, the pressure-reducing dust discharge pipe is provided with a control valve, and when the material is in the forward feeding state, the control valve is always closed or at least partly closed, and when the material is in the reverse falling state, the control valve is closed. When the material is in the state, the control valve is opened.

Further, the pressure-reducing dust discharge pipe includes a first pipe section connected to the body, a second pipe section connected to the first pipe section, and a third pipe section connected to the second pipe section and the dust removal device, wherein , the first pipe section has pipe diameters from large to small from the position of the machine body, and the second pipe section has pipe diameters smaller than the first pipe section and the third pipe section.

Preferably, the distance between the depressurization and dust removal channel and the bottom is 3-10 meters.

Preferably, the distance between the depressurization and dust removal channel and the bottom is 7 meters.

Further, the feeding channel includes a feeding pipe and a sealed feeder connected with the feeding pipe.

Further, the sealed feeder includes surrounding and spaced feeding blades and a driving mechanism connected to the feeding blades, and the feeding blades are driven by the driving mechanism to rotate at a set speed to feed .

Further, the feed pipe has a feed port communicated with the sealed feeder and a discharge port communicated with the delivery channel, and the size of the discharge port is smaller than that of the feed port.

Preferably, the feed channel is arranged obliquely in a direction away from the bottom relative to the delivery channel.

Further, the depressurization and dust removal channel is also inclined in a direction away from the bottom relative to the delivery channel, and the depressurization and dust removal channel has an inclination angle greater than that of the feed channel.

Based on the above technical solution, the bucket elevator of the present invention has at least the following beneficial effects:

The bucket elevator of the utility model, by setting the pressure-reducing dust-removing channel, can firstly play a certain role of dust-removing in the process of reverse blanking; The pressure of the airflow generated by the reverse blanking can, on the one hand, slow down the falling speed of the material accordingly, avoiding the formation of dust inside the conveying channel due to the large impact force when it falls to the bottom, and further discharge from the feeding channel. On the one hand, it can also fundamentally solve the problem that the materials to be conveyed at the bottom are affected by the airflow pressure to form dust and be discharged from the feeding channel; in addition, the dust removal channel can also be used to absorb the dust that has formed in the delivery channel; thus It can be seen that the bucket elevator of the utility model not only does not have adverse effects on the feeding operation of the feeding channel, but also fundamentally solves the problem of dust, avoiding material waste and dust caused by the outward generation of the feeding channel. health hazards and environmental pollution.

Description of drawings

Fig. 1 is a schematic structural diagram of a bucket elevator provided by an embodiment of the present invention.

detailed description

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should also be noted that the orientation terms such as up and down in the following embodiments are only relative concepts or refer to the normal use state of the product, and should not be regarded as limiting.

As shown in Figure 1, the bucket elevator provided by the embodiment of the utility model includes a body 100 provided with a feed channel 300 and a discharge channel 200, and a delivery channel 400 is provided in the body 100, and the delivery channel 400 includes a The bottom 410 connected to the feed channel 300 and the top 420 connected to the discharge channel 200, when the material moves from the bottom 410 to the top 420, the delivery channel 400 is in a forward conveying state (as shown by the solid arrow in Figure 1) , when the material moves from the top 420 to the bottom 410, the conveying channel 400 is in the reverse blanking state, and the body 100 between the bottom 410 and the top 420 is also provided with a conduction with the conveying channel 400 and can be used when the material is in the reverse direction. In the state of blanking, the lifting channel 400 is depressurized to absorb dust (as shown by the hollow arrow in FIG. 1 ).

By setting the pressure-reducing dust removal channel 500, firstly, it can play a certain role in dust removal during the reverse blanking process; secondly, by reducing the pressure of the lifting channel 400, the airflow generated by the reverse blanking can be reduced accordingly On the one hand, it can slow down the falling speed of the material accordingly, avoiding the formation of dust inside the conveying channel 400 due to the large impact force when it falls to the bottom 410, and further discharge from the feeding channel 300; Fundamentally solve the problem that the material to be conveyed at the bottom 410 is affected by the airflow pressure to form dust and discharge it from the feed channel 300; in addition, the dust removal channel 500 can also be used to absorb the dust that has formed in the delivery channel 400; the bucket type Under the premise of not affecting the normal feeding of the feed channel 300, the hoist can fundamentally solve the dust problem, avoiding waste of materials and health hazards and environmental pollution caused by the dust generated by the feed channel 300.

Specifically, in the embodiment of the present invention, the depressurization and dust removal channel 500 includes a depressurization and dust discharge pipe connected to the delivery channel 400 and a dust removal device 520 connected to the depressurization and dust discharge pipe. That is, the dust removal device 520 exists as a part of the bucket elevator, which is beneficial to improve the convenience of use.

Further, a control valve 530 is provided on the pressure-reducing dust discharge pipe. When the material is in the forward feeding state, the control valve 530 is always closed or at least closed for a certain period of time. When the material is in the reverse feeding state, the control valve 530 is closed. open. By switching the control valve 530, it can not only ensure that the forward feeding can be carried out stably without the pressure reduction interference of the pressure reduction and dust removal channel 500, but also achieve the purpose of pressure reduction and dust removal when the material is reversed. The energy for the operation of the bucket elevator, on the other hand, can also avoid adverse effects on both material conveying and dust removal caused by the turbulence of the air flow in the conveying channel 400 . Wherein, the closing of the control valve 530 at least for part of the period means that the material in the forward feeding state is located between the top 420 and the control valve 530 and the distance between the control valve 530 and the control valve 530 is large, the control valve 530 can be closed, so that Further save energy. The dust removal device 520 may be a common bag filter or cyclone dust collector.

In addition, in actual application, a corresponding control valve 530 can also be provided on the dust removal device 520 to achieve the purpose of depressurization and dust removal.

Further, in an embodiment of the present utility model, the pressure-reducing dust discharge pipe includes a first pipe section 511 connected to the body 100, a second pipe section 512 connected to the first pipe section 511, and a pipe section connected to the second pipe section 512 and the dust removal device 520. The third pipe section 513 , wherein the first pipe section 511 has pipe diameters from large to small from the position of the machine body 100 , and the second pipe section 512 has pipe diameters smaller than the first pipe section 511 and the third pipe section 513 . Such a structure can make the airflow entering the pressure-reducing dust discharge pipe change from thick to thin and thicken again, which can achieve the effect of accelerating the airflow speed. On the other hand, it can also form a "low pressure" area on the rear side of the pressure-reducing dust exhaust pipe. While achieving the purpose of reducing pressure, it is beneficial to reduce the power consumption caused by reducing the pressure, save energy to the greatest extent, and has a better economic interests.

Taking the production of high-tower compound fertilizer as an example, the overall height of the commonly used bucket elevator is about 100-120 meters, and in order to ensure the convenience of feeding the feeding channel 300, the distance between the feeding channel 300 and the bottom 410 is generally Less than 1 meter; after several tests by the applicant of the utility model, it is known that the distance between the pressure-reducing dust removal channel 500 and the bottom 410 is 3-10 meters, and more preferably 7 meters. Within this distance range, the pressure-reducing dust removal channel 500 has the best effect on solving the dust problem, and consumes less energy. The distance above refers to the distance between the junction of the pressure-reducing dust removal passage 500 and the delivery passage 400 and the bottom 410 .

Furthermore, in actual application, a plurality of pressure-reducing and dust-removing channels 500 can be arranged at intervals on the machine body 100 according to needs, so as to further improve dust raising.

Further, in the embodiment of the present utility model, the feed channel 300 includes a feed pipe 310 and a sealed feeder 320 connected with the feed pipe 310 . Adopting the sealed feeder 320 can further prevent the bottom 410 from generating dust and being discharged from the feeding channel 300 .

Further, in an embodiment of the present utility model, the sealed feeder 320 includes surrounding and spaced feeding blades 321 and a driving mechanism (not shown) connected to the feeding blades 321, and the feeding blades 321 are connected to each other in the driving mechanism. Driven by the drive, it rotates and feeds at the set speed. Such a rotary feeding structure not only has high feeding efficiency, but also forms a barrier at the feeding port to prevent dust. The speed of the feeding blade 321 should be appropriate. While ensuring that the bottom 410 has enough material to be transported, it should also avoid the excessive speed of the feeding blade 321, which will cause excessive material accumulation at the bottom 410 and increase the dust generation accordingly.

Further, in an embodiment of the present utility model, the feed pipe 310 has a feed port 311 communicated with the sealed feeder 320 and a discharge port 312 communicated with the delivery channel 400, and the size of the discharge port 312 is smaller than the feed port 312. The size of the feed port 311. Such a structure can slow down the gas flow rate, that is, it can hinder the material dust generated in the conveying channel 400 due to reverse falling, so as to better avoid dust from the feeding port 311 .

Preferably, the feed channel 300 is arranged obliquely in a direction away from the bottom 410 relative to the delivery channel 400 . On the one hand, the inclined feed channel 300 is beneficial for materials to enter the bottom 410; emission.

Further, in the embodiment of the present utility model, the depressurization and dust removal channel 500 is obliquely arranged in a direction away from the bottom 410 relative to the delivery channel 400 , and the depressurization and dust removal channel 500 has a greater inclination angle than the feed channel 300 . Specifically, in this embodiment, the first pipe section 511 of the depressurization and dust discharge pipe has an inclination angle greater than that of the feed pipe 310 . Such a structure not only ensures that the material dust is introduced into the pressure-reducing dust removal channel 500, but also facilitates a small amount of material dust to fall back to the delivery channel 400 from the pressure-reducing dust discharge pipe due to gravity when the pressure-reducing dust-removing channel 500 is in a closed state. .

Preferably, the inclination angle of the feed pipe 310 of the feed channel 300 relative to the delivery channel 400 is 25-35°, and more preferably 30°, which is beneficial to the feeding operation and has the best effect on preventing dust.

Specifically, in the embodiment of the present utility model, the pressure-reducing dust removal channel 500 and the feeding channel 300 are located on the same side of the machine body 100 .

It should be noted that, in actual application, the bucket elevator also includes, for example, a chain drive or a belt drive mechanism (not shown) arranged in the delivery channel 400 and a power device (not shown) connected to the drive mechanism, etc. These are common in existing bucket elevators, so they can be realized by corresponding existing technologies, and will not be described in detail here.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (10)

1. bucket elevator, it is characterised in that：It is provided with and carries including the body provided with feeding-passage and tapping channel, in the body Passage is sent, the passage that submits includes the bottom turned on the feeding-passage and the top turned on the tapping channel, Passage is submitted described in when material is from the bottom to the top movements and is in positive conveying state, material is from the top to institute Passage is submitted described in when stating bottom motion to be on reversed blanking state, the body between the bottom and the top Be additionally provided with it is described submit channel conductive and can material be in the reversed blanking state when to it is described submit passage decompression with Absorb the decompression dedusting passage of airborne dust.

2. bucket elevator as claimed in claim 1, it is characterised in that：The decompression dedusting passage include with it is described submit it is logical The decompression dust flue of road conducting and the dust arrester being connected with the decompression dust flue.

3. bucket elevator as claimed in claim 2, it is characterised in that：The decompression dust flue is provided with control valve, When material is in the positive conveying state, the control valve is closed or at least closed in partial period all the time, and in material During in the reversed blanking state, the control valve is opened.

4. bucket elevator as claimed in claim 2, it is characterised in that：The decompression dust flue includes being connected with the body The first pipeline section, the second pipeline section for being connected with first pipeline section and connection second pipeline section and the dust arrester the Three pipeline sections, wherein, first pipeline section is since the body position with descending caliber, second pipeline section Caliber with less than first pipeline section and the 3rd pipeline section.

5. bucket elevator as claimed in claim 1, it is characterised in that：Between the decompression dedusting passage and the bottom Spacing is 3~10 meters.

6. bucket elevator as claimed in claim 1, it is characterised in that：The feeding-passage include feed pipe and with it is described The connected sealing feeding machine of feed pipe.

7. bucket elevator as claimed in claim 6, it is characterised in that：The sealing feeding machine includes around and is arranged at intervals Feeding blade and the drive mechanism that is connected with the feeding blade, the feeding blade is under the driving of the drive mechanism Feeding is rotated by setting speed.

8. bucket elevator as claimed in claim 6, it is characterised in that：The feed pipe has to be connected with the sealing feeding machine Logical charging aperture and the discharging opening that passage is connected is submitted with described, the size of the discharging opening is less than the chi of the charging aperture It is very little.

9. the bucket elevator as described in one of claim 1 to 8, it is characterised in that：The feeding-passage is carried relative to described Passage is sent to be obliquely installed towards the direction away from the bottom.

10. bucket elevator as claimed in claim 9, it is characterised in that：The decompression dedusting passage is submitted relative to described Passage is also obliquely installed towards the direction away from the bottom, and the decompression dedusting passage has inclining more than the feeding-passage Rake angle.