CN111071801B - Pneumatic conveying device for hydraulic chip removal and drilling coal dust of coal mine - Google Patents
Pneumatic conveying device for hydraulic chip removal and drilling coal dust of coal mine Download PDFInfo
- Publication number
- CN111071801B CN111071801B CN202010110603.2A CN202010110603A CN111071801B CN 111071801 B CN111071801 B CN 111071801B CN 202010110603 A CN202010110603 A CN 202010110603A CN 111071801 B CN111071801 B CN 111071801B
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- CN
- China
- Prior art keywords
- screen plate
- conveying
- coal
- plate
- screen
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- 239000003245 coal Substances 0.000 title claims abstract description 45
- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 239000002817 coal dust Substances 0.000 title abstract description 21
- 238000012216 screening Methods 0.000 claims abstract description 32
- 230000001681 protective effect Effects 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/06—Gas pressure systems operating without fluidisation of the materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/35—Self-supporting filtering elements arranged for outward flow filtration
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chutes (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a pneumatic conveying device for hydraulic chip removal and drilling coal dust of a coal mine, which comprises a frame, a discharging pipe groove, a rubber conveying hose, a conveying sprayer, a screening conical hopper and a protective cover; the periphery of the screening conical hopper is provided with screen plates, a screen plate which is inclined downwards from front to back is welded and fixed in the screening conical hopper, and a coal block discharge hole is formed in the screen plate at the rear side connected with the screen plate; the protective cover is connected with the screening conical hopper up and down; the conveying ejector is fixedly connected below the screening conical hopper, and two ends of the rubber conveying hose are respectively fixedly connected with the discharging pipe groove and the conveying ejector; the device can screen out coal blocks with larger granularity which are occasionally discharged in the drilling process, water and coal dust are separated through the side plates of the screen, and wet coal dust is conveyed and loaded into a mine car by utilizing the pneumatic action generated by the compressed air which is introduced into the conveying ejector; the conveying path is bendable, equipment is flexibly arranged in a narrow roadway under the coal mine, so that the accumulation of coal dust in the roadway under the coal mine is avoided, and the working efficiency of cleaning the coal dust is improved.
Description
Technical Field
The invention relates to the technical field of coal dust cleaning for underground hydraulic chip removal drilling of coal mines, in particular to an automatic coal dust separating and conveying device for underground hydraulic chip removal drilling of coal mines.
Background
In the engineering construction of geological exploration drilling, gas extraction drilling, anchor bolt support drilling and the like, a drilling process of hydraulic chip removal is widely adopted in underground coal mines. In the construction process, a large amount of coal dust is accumulated in a roadway after being flushed out of a drill hole by water, so that great inconvenience is brought to underground drill site operation drilling equipment and workers in the coming and going directions, standardized images of mines are seriously influenced, a coal mine needs to be provided with special cleaning staff to manually clean the accumulated coal dust at regular time, the coal dust is filled into a mine car by utilizing a spade, the cleaning work intensity is high, the working environment is severe, and the labor cost of coal mine production is improved.
Disclosure of Invention
Aiming at the problem of coal dust accumulation in engineering construction such as geological exploration drilling, gas extraction drilling, anchor bolt support drilling and the like by utilizing hydraulic chip removal drilling in coal enterprises, the invention provides a pneumatic conveying device for coal dust in hydraulic chip removal drilling of a coal mine.
The specific technical scheme is as follows: the hydraulic chip removal and drilling coal chip pneumatic conveying device for the coal mine comprises a frame, a discharging pipe groove, a rubber conveying hose, a conveying sprayer, a screening conical hopper and a protective cover; the conveying injector consists of a nozzle, a throat pipe, a feed chute and an air source valve; the screening conical hopper consists of supporting legs, a connecting plate, a front screen plate, a left screen plate, a right screen plate, a rear screen plate, a screen plate and a coal block guide chute; the protection casing comprises left side board, right side board, posterior lateral plate and roof.
The inside of the screening conical funnel is welded and fixed with a screen plate which is inclined downwards from front to back, and the diameter of the screen holes of the screen plate is equal to the minimum inner diameter of the throat pipe of the conveying injector; a coal block discharging hole is formed in the rear screen plate connected with the screen plate, and a coal block guide groove is welded and fixed at the outer edge of the coal block discharging hole; a funnel discharge hole is formed in the middle of the connecting plate of the screening conical funnel, and the peripheral edge of the funnel discharge hole is welded and fixed with the front screen plate, the left screen plate, the right screen plate and the rear screen plate respectively; the four supporting legs are welded and fixed at four corners of the connecting plate respectively.
A penetrating hole is formed in the rear side plate of the protective cover; the left side plate and the right side plate of the protective cover are respectively fixedly connected with the left screen plate and the right screen plate of the screening conical funnel up and down by bolts.
The size of the feed inlet of the feed chute of the conveying injector is the same as that of the funnel discharge outlet of the connecting plate of the screening conical funnel, and the feed chute of the conveying injector is fixedly connected below the funnel discharge outlet of the connecting plate of the screening conical funnel by bolts.
The discharging pipe groove is fixedly arranged on the frame; one end of the rubber conveying hose is fixedly connected with the discharging pipe groove through a clamp, and the other end of the rubber conveying hose is fixedly connected with the throat pipe of the conveying sprayer through a clamp.
The pneumatic conveying device for hydraulic chip removal, drilling and coal chip of the coal mine has the advantages that the pneumatic conveying device is simple in structure and convenient to use, water and coal chip can be further separated through the side plates of the screen after coal blocks with larger granularity which are occasionally discharged in the drilling process are screened out, and wet coal chip is conveyed and loaded into a mine car by utilizing pneumatic action generated by compressed air which is introduced into the conveying sprayer; the conveying path is bendable, equipment is flexibly arranged in a narrow underground tunnel of a coal mine, so that the accumulation of coal dust in the underground tunnel is avoided, the number of coal dust cleaning workers is reduced, the labor intensity of workers is reduced, the working efficiency of coal dust cleaning is improved, and the purpose of reducing people and improving efficiency is achieved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure of the screening cone funnel of the present invention.
Fig. 3 is a bottom view of the screening cone of fig. 2.
Fig. 4 is a schematic view of the structure of the protective cover of the present invention.
Fig. 5 is a schematic diagram of the transport injector structure of the present invention.
Detailed Description
As shown in fig. 1,2,3, 4 and 5, the pneumatic conveying device for hydraulic chip removal and drilling coal dust of the coal mine comprises a frame 1, a discharge pipe groove 2, a rubber conveying hose 4, a conveying sprayer 5, a screening conical hopper 6 and a protective cover 7; wherein, the conveying injector 5 consists of a nozzle 52, a throat 54, a feed chute 53 and a gas source valve 51; the screening conical hopper 6 consists of a supporting leg 68, a connecting plate 67, a front screen plate 61, a left screen plate 62, a right screen plate 66, a rear screen plate 63, a screen plate 60 and a coal block guide groove 65; the hood 7 is composed of a left side plate 71, a right side plate 73, a rear side plate 72, and a top plate 74.
The inside of the sieving conical funnel 6 is welded and fixed with a sieve plate 60 which is inclined downwards from front to back, and the sieve mesh diameter of the sieve plate 60 is equal to the minimum inner diameter of the throat pipe 54 of the conveying injector 5; a coal block discharging hole 64 is formed in a rear screen plate 63 connected with the screen plate 60, and a coal block guide groove 65 is welded and fixed on the outer edge of the coal block discharging hole 64; a funnel discharge hole 69 is formed in the middle of the connecting plate 67 of the screening conical funnel 6, and the peripheral edges of the funnel discharge hole 69 are welded and fixed with the front screen plate 61, the left screen plate 62, the right screen plate 66 and the rear screen plate 63 respectively; four legs 68 are welded and fixed to four corners of the link plate 67, respectively.
The rear side plate 72 of the protective cover 7 is provided with a penetrating hole 75; the left side plate 71 and the right side plate 73 of the protective cover 7 are fixedly connected with the left screen plate 62 and the right screen plate 66 of the screening cone 6 up and down by bolts respectively.
The size of the feed inlet of the feed chute 53 of the conveying injector 5 is the same as that of the funnel discharge outlet 69 of the connecting plate 67 of the screening conical funnel 6, and the feed chute 53 of the conveying injector 5 is fixedly connected below the funnel discharge outlet 69 of the connecting plate 67 of the screening conical funnel 6 by bolts.
One end of the rubber conveying hose 4 is fixedly connected with the unloading pipe groove 2 through a clamp 3, and the other end of the rubber conveying hose is fixedly connected with a throat 54 of the conveying sprayer 5 through a clamp 8.
When the hydraulic chip removal drilling is used for carrying out engineering construction such as geological exploration drilling, gas extraction drilling, anchor bolt support drilling and the like, the mine car 10 is pushed to the lower part of the frame 1, and the discharge opening of the discharge pipe groove 2 is opposite to the mine car 10; placing the coal block box 9 below the coal block guide chute 65 of the screening cone 6; simultaneously, the front side screen plate 61 of the screening conical hopper 6 is abutted against the coal wall, the drill rod 11 for drilling is passed through the penetrating holes 75 on the rear side plate 72 of the protective cover 7 from the rear, and then the drilling operation is started; during drilling of the drill rod 11, water and coal dust discharged from drilling holes fall into the screening conical hopper 6 from a feed inlet at the front side of the protective cover 7, the water leaks to the ground after passing through a front screen plate 61, a left screen plate 62, a right screen plate 66 and a rear screen plate 63 of the screening conical hopper 6, and after coal with larger particle size is screened out by the screen plate 60, the coal with smaller particle size falls into the coal box 9 through a coal discharge hole 64 and a coal guide groove 65 on the rear screen plate 63 of the screening conical hopper 6, and meanwhile, moist coal dust with smaller particle size falls into a feed groove 53 of the conveying injector 5 through the screen plate 60.
When the air source valve 51 of the conveying injector 5 is opened and compressed air enters the throat 54 from the nozzle 52 of the conveying injector 5, moist coal dust enters the throat 54 from the feed chute 53 under the pneumatic action generated inside the conveying injector 5, is conveyed into the discharge pipe chute 2 through the rubber conveying hose 4, and falls into the mine car 10 from the discharge opening of the discharge pipe chute 2.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which are all within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "center", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present invention.
Claims (1)
1. The hydraulic chip removal drilling coal chip pneumatic conveying device for the coal mine is characterized in that: comprises a frame, a discharging pipe groove, a rubber conveying hose, a conveying sprayer, a screening conical hopper and a protective cover; the screening conical hopper consists of supporting legs, a connecting plate, a front screen plate, a left screen plate, a right screen plate, a rear screen plate, a screen plate and a coal block guide chute; the inside of the screening conical funnel is welded and fixed with a screen plate which is inclined downwards from front to back, and the diameter of the screen holes of the screen plate is equal to the minimum inner diameter of the throat pipe of the conveying injector; a coal block discharging hole is formed in the rear screen plate connected with the screen plate, and a coal block guide groove is welded and fixed at the outer edge of the coal block discharging hole; a funnel discharge hole is formed in the middle of the connecting plate of the screening conical funnel, and the peripheral edge of the funnel discharge hole is welded and fixed with the front screen plate, the left screen plate, the right screen plate and the rear screen plate respectively; the four supporting legs are welded and fixed at four corners of the connecting plate respectively; the conveying injector consists of a throat pipe, a feed chute, a nozzle and an air source valve and is fixedly connected in sequence; the size of the feed inlet of the feed chute of the conveying injector is the same as that of the funnel discharge outlet of the connecting plate of the screening conical funnel, and the feed chute of the conveying injector is fixedly connected below the funnel discharge outlet of the connecting plate of the screening conical funnel by bolts; the protective cover consists of a left side plate, a right side plate, a rear side plate and a top plate; the rear side plate of the protective cover is provided with a penetrating hole; the left side plate and the right side plate of the protective cover are respectively fixedly connected with the left screen plate and the right screen plate of the screening conical hopper up and down by bolts; the discharging pipe groove is fixedly arranged on the frame; one end of the rubber conveying hose is fixedly connected with the discharging pipe groove through a first clamp, and the other end of the rubber conveying hose is fixedly connected with the throat pipe of the conveying sprayer through a second clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010110603.2A CN111071801B (en) | 2020-02-24 | 2020-02-24 | Pneumatic conveying device for hydraulic chip removal and drilling coal dust of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010110603.2A CN111071801B (en) | 2020-02-24 | 2020-02-24 | Pneumatic conveying device for hydraulic chip removal and drilling coal dust of coal mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111071801A CN111071801A (en) | 2020-04-28 |
| CN111071801B true CN111071801B (en) | 2024-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010110603.2A Active CN111071801B (en) | 2020-02-24 | 2020-02-24 | Pneumatic conveying device for hydraulic chip removal and drilling coal dust of coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111071801B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211768900U (en) * | 2020-02-24 | 2020-10-27 | 河南理工大学 | Pneumatic conveying device for coal dust in hydraulic chip removal drilling of coal mine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526008A (en) * | 2009-03-27 | 2009-09-09 | 刘永 | Rotary wing flowing type pipeline waste stone discharger |
| CN103352718B (en) * | 2013-07-29 | 2015-07-15 | 河南理工大学 | Fully-sealed wind power slagging gas-drainage deep well drilling system and method |
| CN106289716A (en) * | 2016-08-12 | 2017-01-04 | 河南理工大学 | A kind of gas-lift reverses circulation pneumatic conveying experiment device |
| CN207390480U (en) * | 2017-08-31 | 2018-05-22 | 佛山市昇业塑料机械有限公司 | A kind of color masterbatch Pneumatic conveyer based on Venturi effect |
| CN108325829A (en) * | 2018-04-24 | 2018-07-27 | 河北冠能石油机械制造有限公司 | Vibrating screen assembly and vibrating screen device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211768900U (en) * | 2020-02-24 | 2020-10-27 | 河南理工大学 | Pneumatic conveying device for coal dust in hydraulic chip removal drilling of coal mine |
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| CN111071801A (en) | 2020-04-28 |
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