CN210260435U - Device for preventing dust leakage of pneumatic conveying system - Google Patents
Device for preventing dust leakage of pneumatic conveying system Download PDFInfo
- Publication number
- CN210260435U CN210260435U CN201920992463.9U CN201920992463U CN210260435U CN 210260435 U CN210260435 U CN 210260435U CN 201920992463 U CN201920992463 U CN 201920992463U CN 210260435 U CN210260435 U CN 210260435U
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- Prior art keywords
- accelerator
- communicated
- dust remover
- dust
- conveying system
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- Expired - Fee Related
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- 239000000428 dust Substances 0.000 title claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Screw Conveyors (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The utility model provides a device for preventing dust leakage of a pneumatic conveying system, which comprises a bag opening station, a screw conveyor, a dust remover, a material guide pipe and an accelerator; the pipeline on the dust remover is connected with a negative pressure fan; be equipped with withstand voltage rotary valve in the accelerator, the accelerator up end is connected with escapes the air chamber, escapes the air chamber and communicates with the inside gas circuit of accelerator, escapes the air chamber upper end and communicates with the dust remover gas circuit. The utility model provides a pneumatic conveying system prevents device that dust was revealed, structural design is reasonable, and the air chamber is escaped on withstand voltage rotary valve to the withstand voltage rotary valve upper end design dustcoat of accelerator, and escapes air chamber top and dust remover intercommunication, and withstand voltage rotary valve reveals that gas can get into and escape the air chamber, has avoided revealing the gas recoil to opening the bag station and cause the raise dust condition.
Description
Technical Field
The utility model relates to a pneumatic conveying system technical field especially relates to a pneumatic conveying system prevents device that dust revealed.
Background
In powder transportation, a pneumatic conveying system is generally adopted for transportation. The traditional pneumatic conveying system comprises a bag opening station and a screw conveyor, wherein a material guide pipe is connected below the conveying tail end of the screw conveyor, and a dust remover is externally connected above the conveying tail end of the screw conveyor. After the powder falls through the material guide pipe, the powder is accelerated to be discharged through the accelerator. The bulk specific gravity of the powder is less than 400kg/m3When dilute-phase positive pressure conveying is adopted, a pressure-resistant rotary valve of an accelerator can cause gas leakage, the gas reversely flows out from a bag opening station along a pneumatic conveying system, and the bag opening station cannot collect the gas in time, so that dust raising can be caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the deficiency of the prior art, the utility model provides a can effectively collect withstand voltage rotary valve and reveal gas, avoid gas to stand from opening the bag and turn over out, avoid taking place the pneumatic conveying system of raise dust situation and prevent the device that the dust was revealed.
The utility model provides a technical scheme that its technical problem adopted is: a device for preventing dust leakage of a pneumatic conveying system comprises a bag opening station, a spiral conveyor, a dust remover, a material guide pipe and an accelerator, wherein the spiral conveyor is obliquely and upwards arranged below the bag opening station, the front end of the conveyor of the spiral conveyor is communicated with a pipeline at the lower end of the bag opening station, the lower part of the rear end of the conveyor of the spiral conveyor is communicated with a pipeline at the lower end of the bag opening station, a pipeline at the lower end of the material guide pipe is communicated with a pipeline at the lower end of the material guide pipe, a fan which enters air in the horizontal direction and drives the material guide pipe to fall is arranged at a position, corresponding to a falling position, of the material guide pipe, is communicated with the accelerator, a fan which horizontally conveys and; the accelerator is internally provided with a pressure-resistant rotary valve, the upper end face of the accelerator is connected with an air escaping chamber, the air escaping chamber is communicated with an air path inside the accelerator, and the upper end of the air escaping chamber is communicated with an air path of the dust remover.
Preferably, the air escaping chamber is of a funnel-shaped structure with a large upper part and a small lower part, the small end face of the funnel shape is communicated with an air passage in the accelerator, and the large end face of the funnel shape is communicated with an air passage on the lower end face of the dust remover.
Furthermore, the air escaping chamber is wrapped outside the material guide pipe.
The beneficial effects of the utility model are that, the utility model provides a pneumatic conveying system prevents device that dust was revealed, structural design is reasonable, and the air chamber is escaped on withstand voltage rotary valve to the design dustcoat on withstand voltage rotary valve at the accelerator, and escapes air chamber top and dust remover intercommunication, and withstand voltage rotary valve reveals that gas can get into and escape the air chamber, has avoided revealing the gas recoil to the bag opening station causes the raise dust condition.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the preferred embodiment of the present invention.
In the figure, 1, a bag opening station 2, a screw conveyor 3, a dust remover 4, a negative pressure fan 5, a material guide pipe 6, an air escaping chamber 7, an accelerator 8, a pressure-resistant rotary valve 9 and a blanking port.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
A device that pneumatic conveyor system prevents dust and reveals as shown in fig. 1, is the utility model discloses the best embodiment, including opening bag station 1, screw conveyer 2, dust remover 3, passage 5 and accelerator 7, screw conveyer 2 upwards sets up in an inclined way and opening bag station 1 below, and screw conveyer's conveyer front end and the feed inlet pipeline intercommunication of opening bag station 1 lower extreme pipeline intercommunication, rear end below and passage 5, the export and the accelerator 7 intercommunication of passage 5, accelerator 7 below has the discharge gate, discharge gate and accelerator 7 intercommunication, accelerator 7 below has blanking mouth 9, blanking mouth 9 corresponds the fan that blanking mouth 9 whereabouts powder transported the ejection of compact on the horizontal direction that falling position department still is equipped with the horizontal direction air inlet and drives blanking mouth 9 whereabouts powder.
The pipeline is connected with a dust remover 3 above the rear end of the screw conveyer 2, and the pipeline on the dust remover 3 is connected with a negative pressure fan 4. The dust remover is characterized in that a pressure-resistant rotary valve 8 is arranged in the accelerator 7, the upper end face of the accelerator 7 is connected with an air escaping chamber 6, the air escaping chamber 6 is communicated with an air passage in the accelerator 7, and the upper end of the air escaping chamber 6 is communicated with an air passage of the dust remover 3.
The air escaping chamber 6 is of a funnel-shaped structure with a large upper part and a small lower part, the small end face of the funnel shape is communicated with the air passage in the accelerator 7, and the large end face of the funnel shape is communicated with the air passage on the lower end face of the dust remover 3. The air escaping chamber 6 is externally wrapped outside the material guiding pipe 5.
In the transportation process, the powder moves the bag opening station 1 to open the bag and fall into the screw conveyer 2, the screw conveyer 2 is lifted upwards in an inclined way to the material guide pipe 5 and falls into the accelerator 7 through the material guide pipe 5, the pressure-resistant rotary valve 8 in the accelerator 7 drives the material to fall with acceleration and discharge from the material discharge port 9, and then the material is discharged along the horizontal direction through the fan. When the pressure-resistant rotary valve 8 in the accelerator 7 leaks, the top end of the escape air chamber 6 is connected with the lower end of the dust remover 3, leaked gas enters the escape air chamber 6 from the accelerator 7, and cannot backflush back to the material guide pipe 5 or even backflush to the bag opening station 1 to cause dust raising.
The pneumatic conveying system who so designs prevents the device that the dust was revealed, structural design is reasonable, and the air chamber 6 is escaped on withstand voltage rotary valve 8 to the design dustcoat at withstand voltage rotary valve 8 upper end of accelerator 7, and escapes 6 tops of air chamber and 3 intercommunications of dust remover, and withstand voltage rotary valve 8 reveals that the gas can get into and escape air chamber 6, has avoided revealing the gas recoil to opening bag station 1 and has aroused the raise dust condition.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. A device for preventing dust leakage of a pneumatic conveying system comprises a bag opening station (1), a screw conveyor (2), a dust remover (3), a material guide pipe (5) and an accelerator (7), wherein the screw conveyor (2) is obliquely and upwardly arranged below the bag opening station (1), the front end of the conveyor of the screw conveyor is communicated with a pipeline at the lower end of the bag opening station (1), the lower part of the rear end is communicated with a pipeline at the feed inlet of the material guide pipe (5), the outlet of the material guide pipe (5) is communicated with an accelerator (7), a discharge hole is arranged below the accelerator (7), the discharge hole is communicated with an accelerator (7), a blanking hole (9) is arranged below the accelerator (7), the blanking mouth (9) correspond whereabouts position department and still be equipped with the horizontal direction air inlet and drive blanking mouth (9) whereabouts powder and transport the fan of ejection of compact on the horizontal direction, its characterized in that: a dust remover (3) is connected to the upper part of the rear end of the spiral conveyor (2) through a pipeline, and a negative pressure fan (4) is connected to the pipeline on the dust remover (3); the dust remover is characterized in that a pressure-resistant rotary valve (8) is arranged in the accelerator (7), an air escaping chamber (6) is connected to the upper end face of the accelerator (7), the air escaping chamber (6) is communicated with an air passage in the accelerator (7), and the upper end of the air escaping chamber (6) is communicated with an air passage of the dust remover (3).
2. The pneumatic conveying system dust leakage preventing device according to claim 1, wherein: the air escaping chamber (6) is of a funnel-shaped structure with a large upper part and a small lower part, the small end face of the funnel shape is communicated with the air passage in the accelerator (7), and the large end face of the funnel shape is communicated with the air passage on the lower end face of the dust remover (3).
3. The pneumatic conveying system dust leakage preventing device according to claim 1, wherein: the air escaping chamber (6) is wrapped outside the material guide pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920992463.9U CN210260435U (en) | 2019-06-27 | 2019-06-27 | Device for preventing dust leakage of pneumatic conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920992463.9U CN210260435U (en) | 2019-06-27 | 2019-06-27 | Device for preventing dust leakage of pneumatic conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210260435U true CN210260435U (en) | 2020-04-07 |
Family
ID=70045756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920992463.9U Expired - Fee Related CN210260435U (en) | 2019-06-27 | 2019-06-27 | Device for preventing dust leakage of pneumatic conveying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210260435U (en) |
-
2019
- 2019-06-27 CN CN201920992463.9U patent/CN210260435U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 |