CN211687478U - Defeated coal transfer point presses down dirt system - Google Patents
Defeated coal transfer point presses down dirt system Download PDFInfo
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- CN211687478U CN211687478U CN201922093405.5U CN201922093405U CN211687478U CN 211687478 U CN211687478 U CN 211687478U CN 201922093405 U CN201922093405 U CN 201922093405U CN 211687478 U CN211687478 U CN 211687478U
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Abstract
The utility model provides a coal conveying system transports some dust suppression system aims at solving coal conveying system operation in-process because the flow of coal stream is big with the dust concentration that the whereabouts leads to, destroys operational environment and causes harm scheduling problem to patrolling and examining and maintainer physical and mental health. The system is a combined system and comprises a guide plate, a curved coal dropping pipe, a rubber belt return cleaning device, a dry fog dust suppression system and the like. The guide plate is arranged inside the head protective cover of the belt conveyor, and plays a role in gathering dispersed incoming materials. The curve coal dropping pipe is designed according to the falling characteristic of the coming coal, so that the coming coal runs along the inner part of the coal dropping pipe, the sliding of the coming coal replaces the traditional free falling body movement, and the dust rising amount is greatly reduced. The belt return cleaning device cleans the return belt working surface of the belt conveyor, reduces the coal carrying amount of the return belt, and further reduces the dust generation amount of the belt conveyor during operation. The nano-scale water mist generated by the dry mist dust suppression system can be tightly combined with the generated dust, so that the generation of the dust is effectively suppressed.
Description
Technical Field
The utility model relates to an engineering technical field, concretely relates to defeated coal system transports some and presses down dirt system.
Background
In the traditional coal conveying system design of a thermal power plant, the coal ash dust raising phenomenon caused by coal coming in the conveying process is very serious, the working environment pollution is caused, the physical and mental health of workers is seriously influenced, and meanwhile, the coal dropping pipe is possibly blocked, so that the coal conveying system cannot normally work, and the serious economic loss and the environmental pollution are caused. Based on this, with the national attention on environmental protection, the modification of the blanking point of the existing coal conveying system is also urgently needed to be proposed.
The traditional cross section of the coal conveying system transfer point coal dropping pipe is designed to be square, the characteristics of coal are not considered, the type selection is carried out according to a related part manual, no future coal gathering measure is taken in the head funnel, and therefore the coal dropping process is a coal ash scattering process. Although water mist dust removal is considered in the traditional design, the water spraying amount is not easy to control, coal is easy to cause coal to be over-wet due to large water amount, and the dust removal effect cannot be achieved due to small water amount.
SUMMERY OF THE UTILITY MODEL
This use is novel to provide one kind can effectively reduce a dust suppression system of defeated coal system transportation point dust volume to solve the problem that prior art exists.
The novel use adopts the following technical scheme:
a coal conveying transfer point dust suppression system comprises an incoming material belt conveyor, wherein a head shield 1 is arranged outside the head of the incoming material belt conveyor, the lower part of the head shield 1 is connected with an inlet of a material distribution tee joint 2, two outlets of the material distribution tee joint 2 are respectively connected with a coal dropping pipe 3, and an outlet of the coal dropping pipe 3 is positioned on the upper part of a conveying belt of a lower belt conveyor; the upper part of the head shield 1 is provided with a spray nozzle 6 for spraying the inside of the head shield 1.
Further, a flow guide baffle 7 is arranged inside the head shield 1, and two sides of the flow guide baffle 7 are arranged on the head shield 1 through shafts 9.
Further, the upper part of the flow guide baffle 7 is rotatably installed on the head shield 1 through a shaft 9, the inner working surface of the flow guide baffle faces the head of the feeding belt conveyor, an adjusting rod for adjusting the inclination angle of the flow guide baffle is installed on the outer side of the flow guide baffle 7, and an adjusting handle 8 is installed at the rear end part of the adjusting rod penetrating through the head shield 1.
Furthermore, the working surface of the inner side of the diversion baffle 7 is of a structure with a wide upper part and a narrow lower part, and the side part of the diversion baffle is provided with a side baffle.
Further, a lining plate is welded inside the coal dropping pipe 3, and a feeding spoon is arranged at the outlet of the coal dropping pipe 3.
Further, the coal dropping pipe 3 is a streamline curve coal dropping pipe based on a falling track of the material.
Further, install double containment baffle box 4 between the export of coal breakage pipe 3 and the belt feeder of subordinate, double containment baffle box 4 includes that the guide cell body that a plurality of sections pass through flange joint and the stand 41 of installation guide cell body, and the stand 41 is installed at the support of belt feeder of subordinate, guide cell body top sets up apron 42, and the both sides of apron 42 lower part set up curb plate 43, and the lateral surface setting of curb plate 43 lower part extends to the anti-overflow shirt rim 44 on the conveyor belt, and the medial surface of curb plate 43 sets up guide welt 45.
Further, a plurality of spray heads are arranged at the upper part of the material guide groove body of the double-seal material guide groove 4.
Further, a rubber belt cleaning device 5 for cleaning a return belt of the incoming belt conveyor is mounted on the frame body of the incoming belt conveyor head.
Further, the adhesive tape cleaning device 5 includes a water spray nozzle 51 for spraying water to the working surface of the return belt, and a scraper 52 for scraping off accumulated coal on the working surface of the return belt.
The utility model has the advantages that:
(1) the utility model discloses set up the shower nozzle at the head of supplied materials belt feeder, spray the dust fall to the supplied materials, can reduce the dust of transshipment point.
(2) The utility model discloses set up the water conservancy diversion baffle at the head of incoming material belt feeder, make the coal enter into the coal breakage pipe after assembling the coming coal, reduce the phenomenon appearance that spills coal ash.
(3) The utility model discloses a coal breakage pipe is curve coal breakage pipe, and the coal flows in order to gather the state along coal breakage intraductal wall lapse, has reduced the entering of outside air.
(4) The utility model discloses in the double containment baffle box falls the dust that produces on the belt with the coal stream and seals the enclosure space, improved operational environment greatly.
Drawings
FIG. 1 is a first cross-sectional view of a dust suppression system at a transfer point of a coal transportation system;
FIG. 2 is a sectional view of a dust suppression system at a transfer point of the coal transportation system;
FIG. 3 is a diagram of a double-seal chute apparatus;
FIG. 4 is a schematic view of the chute body section apparatus;
figure 5 a first view of the adhesive tape return cleaning device,
fig. 6 is a second drawing of the adhesive tape return cleaning device.
1. A head shield; 2. a material distributing tee joint; 3. a curved coal drop tube; 4. a double-sealing material guide groove; 41. a column; 42. a cover plate; 43. a side plate; 44. an anti-overflow apron board; 45. a material guiding lining plate; 46. a wind resistance curtain; 47. a dust suppression unit; 48. a buffer pressure relief tank; 5. a rubber belt return cleaning device; 51. a water injection system; 52. an alloy scraper; 53. a box body; 6. a dry fog dust suppression system; 7. a flow guide baffle plate; 8. an adjusting handle; 9. a shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a coal conveying transfer point presses down dirt system, this system includes the supplied materials belt feeder, the head outside of supplied materials belt feeder sets up head guard shield 1, 1 sub-unit connection of head guard shield divides the entry of branch material tee bend 2, divide two exports of branch material tee bend 2 and connect a coal breakage pipe 3 respectively, the export of coal breakage pipe 3 is located the conveyor belt upper portion of subordinate's belt feeder, two exports of branch material tee bend 2 that enter into the lower part through the upper portion entry of dividing material tee bend 2 with supplied materials belt feeder head supplied materials, the conveyor belt through the export lower part transports. The setting of 1 upper portion of head guard shield is to the inside shower nozzle 6 that sprays of head guard shield 1, sprays when the whereabouts through the supplied materials that shower nozzle 6 carried the supplied materials belt feeder, can reduce the coal charge and spill the dust when expecting, and shower nozzle 6 belongs to the shower nozzle of current dry fog dust suppression system, and the dry fog dust suppression system belongs to current system, the utility model discloses take use can, consequently no longer describe its structure.
In one or more possible embodiments, the head guard 1 of the present invention has a flow guide baffle 7 mounted inside, and the flow guide baffle 7 is mounted inside the head guard 1 by a shaft 9. The inner side working surface of the flow guide baffle 7 faces the head of the feeding belt conveyor, and the inner side working surface of the flow guide baffle 7 is of a structure with a wide upper part and a narrow lower part. The regulation pole of 1 lower part installation water conservancy diversion baffle 7 of head guard shield, the preferred setting in water conservancy diversion baffle 7 lower part of one end of adjusting the pole, after the other end of adjusting the pole passes the adjustment tank that sets up on the head guard shield 1, stretch out the head guard shield 1 outside, its tip installation adjustment handle 8, drive the action of adjusting the pole in the adjustment tank through adjustment handle 8, can adjust the distance of water conservancy diversion baffle 7 and supplied materials belt machine head, and then adjust its angle with the lower part coal breakage pipe and assemble in order conveniently to carry out the material, can adjust according to the characteristic of different materials during the adjustment, reach the effect of assembling the material.
The two ends of the shaft 9 penetrate through the two sides of the head shield 1, and the guide baffle 7 is provided with a closed-loop hook which is sleeved on the shaft 9, so that the horizontal position of the guide baffle 7 can be conveniently adjusted.
In one or more possible embodiments, a lining plate is welded inside the coal dropping pipe 3, and a feeding spoon is arranged at the outlet of the coal dropping pipe 3. The coal dropping pipe 3 is a curved coal dropping pipe, the curved design can be designed according to the falling track of coal flow, and a build-up welding lining plate is arranged in the coal dropping pipe. The outlet is provided with a feeding spoon, so that the space is enlarged, and the air positive pressure is released conveniently.
In one or more feasible embodiments, a double-sealing material guide groove 4 is installed between the outlet of the coal dropping pipe 3 and the lower-level belt conveyor, the double-sealing material guide groove 4 is a common structure in the existing coal conveying system, a plurality of sections of material guide groove bodies connected through flanges and stand columns 41 for installing the material guide groove bodies are arranged on the stand columns 41, the stand columns 41 are installed on the support of the lower-level belt conveyor, a cover plate 42 is arranged at the top of each material guide groove body, side plates 43 are arranged on two sides of the lower portion of the cover plate 42, an anti-overflow skirt 44 extending to the conveying belt is arranged on the outer side face of the lower portion of each side plate 43, a material guide lining plate 45 is. The top of the material guide groove body is provided with a buffer circulation pressure relief box 48, a plurality of wind blocking curtains 46 are arranged in the material guide groove body at intervals, and a dust suppression unit 47 is further arranged in the material guide groove body 1 to slow down the air flow rate and reduce the outlet air speed to the lowest. And a spray head of a dry fog dust suppression system is arranged above the guide chute and is used for settling dust in the limited space of the conveying channel and further suppressing the overflow of the dust.
In one or more possible embodiments, a belt cleaning device 5 for cleaning a return belt of the incoming belt conveyor is mounted on a belt conveyor middle frame close to the incoming belt conveyor head. The tape cleaning device 5 includes a water spray nozzle 51 for spraying water onto the working surface of the return belt and a scraper 52 for scraping off the accumulated coal on the working surface of the return belt.
The adhesive tape return cleaning device is arranged on a middle frame at the head of an incoming material belt and mainly comprises a water spray nozzle 51 and an alloy scraper 52, the water spray nozzle 51 sprays water to the return working belt surface of the belt conveyor, the alloy scraper 52 carries coal with the belt conveyor surface to be scraped to a box body 53 below, the box body 53 is communicated with a sewage pump pit through a pipeline, and the coal scraped by the alloy scraper 52 is discharged to the sewage pump pit along with a sewage discharge pipeline.
Foretell water spray 51 belongs to water injection system's shower nozzle, the current system of water injection system, and current system generally contains water tank, water pump, pipeline, check valve, controller, shower nozzle at least, and the water tank passes through the pipeline to be connected with the water pump, and the water pump passes through the pipe connection shower nozzle that is equipped with the check valve, and the water pump passes through controller control work.
The utility model discloses a theory of operation does:
the material is transmitted to the head shield 1 through the belt, the coal flow guide baffle 7 is installed in the head shield 1, the coal flow guide baffle 7 changes the coal from the dispersed state to the aggregated state, the traditional coal ash scattering type flowing mode is changed, the entrainment to the surrounding air is reduced, and the positive pressure of the air is reduced. Meanwhile, the diversion baffle 7 is provided with an adjusting handle 8 capable of adjusting the front and rear positions, and the position of the diversion baffle 7 can be adjusted according to different material flow characteristics, so that coal flows can be well gathered into a bundle. The coal flows enter the coal dropping pipe 3 through the material distributing tee joint 2 and cling to the inner lining plate to slide downwards, the coal flows slide to replace the original free falling body movement, the air carrying capacity of the coal flows is further reduced, the double-sealing material guide groove 4 is arranged at the outlet of the curve coal dropping pipe 3, the expansion of the space is favorable for the release of the carried air, the coal flows enter the subordinate conveying belt along the belt running direction, the horizontal speed and the belt conveyor speed are relatively consistent, the impact effect of the coal flows on the material receiving belt can be reduced, and the effect of protecting the material receiving belt is achieved while the dust amount is reduced. The double-seal material guide groove 4 locks dust generated in the material guide groove in a closed space, so that the dust in the double-seal material guide groove 4 is prevented from overflowing, and finally, coal dust is deposited on the coal conveying belt and moves to a next-level system.
The head shield 1 and the double-seal material guide groove 4 are provided with nozzles of a dry fog dust suppression system 6, and the nano-scale water fog generated by the nozzles can effectively capture fine dust particles and tightly combine with the fine dust particles to be settled in the coal flow, so that the dust diffusion is effectively suppressed. The sticky tape belt cleaning device 5 is installed in belt feeder head position, it has contained water spray nozzle 51 and alloy scraper 52, water spray nozzle 51 sprays water to belt feeder return stroke working tape face, then the working tape face is scraped to the box 53 below through alloy scraper 52's the surplus coal that will carry of sweeping effect, carry the coal slime to sewage pipes through helical blade in the box and enter into the bilge pit, the dust that the vibration of having effectively avoided the belt feeder arouses flies upward, workman's the maintenance volume of cleaning has also been alleviateed greatly simultaneously.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments 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 scope of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a coal conveying transfer point presses down dirt system which characterized in that: the feeding belt conveyor comprises a feeding belt conveyor, wherein a head protective cover (1) is arranged outside the head of the feeding belt conveyor, the lower part of the head protective cover (1) is connected with an inlet of a distributing tee joint (2), two outlets of the distributing tee joint (2) are respectively connected with a coal dropping pipe (3), and an outlet of the coal dropping pipe (3) is positioned on the upper part of a conveying belt of a lower belt conveyor; the upper part of the head protective cover (1) is provided with a spray nozzle (6) for spraying the interior of the head protective cover (1).
2. The coal conveying transfer point dust suppression system of claim 1, wherein: the flow guide baffle (7) is arranged inside the head shield (1), and two sides of the flow guide baffle (7) are arranged on the head shield (1) through shafts (9).
3. A coal conveying transfer point dust suppression system as claimed in claim 2, wherein: the upper part of the flow guide baffle (7) is rotatably arranged on the head shield (1) through a shaft (9), the inner side working face of the flow guide baffle (7) faces the head of the feeding belt conveyor, an adjusting rod for adjusting the inclination angle of the flow guide baffle (7) is arranged on the outer side of the flow guide baffle (7), and the adjusting rod penetrates through the rear end part of the head shield (1) and is provided with an adjusting handle (8).
4. A coal conveying transfer point dust suppression system as claimed in claim 3, wherein: the inner side working surface of the diversion baffle (7) is of a structure with a wide upper part and a narrow lower part, and the side part of the diversion baffle (7) is provided with a side baffle.
5. The coal conveying transfer point dust suppression system of claim 1, wherein: the inside of the coal dropping pipe (3) is welded with a lining plate, and the outlet of the coal dropping pipe (3) is provided with a feeding spoon.
6. The coal conveying transfer point dust suppression system of claim 1, wherein: the coal dropping pipe (3) is a streamline curve coal dropping pipe based on a material dropping track.
7. The coal conveying transfer point dust suppression system of claim 1, wherein: install double containment baffle box (4) between the export of coal breakage pipe (3) and the belt feeder of subordinate, double containment baffle box (4) include that guide cell body that a plurality of sections pass through flange joint and stand (41) of installation guide cell body, and the support at the belt feeder of subordinate is installed in stand (41), guide cell body top sets up apron (42), and both sides of apron (42) lower part set up curb plate (43), and the lateral surface of curb plate (43) lower part sets up anti-overflow shirt rim (44) that extends to on the conveyor belt, and the medial surface of curb plate (43) sets up guide welt (45).
8. The coal conveying transfer point dust suppression system of claim 7, wherein: and a plurality of spray heads are arranged at the upper part of the material guide groove body of the double-seal material guide groove (4).
9. The coal conveying transfer point dust suppression system of claim 1, wherein: and a rubber belt cleaning device (5) for cleaning a return belt of the incoming material belt conveyor is arranged on the frame body of the head of the incoming material belt conveyor.
10. A coal handling transit point dust suppression system as defined in claim 9, further comprising: the belt cleaning device (5) comprises a water spray nozzle (51) for spraying water on the working surface of the return belt and a scraper (52) for scraping accumulated coal on the working surface of the return belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922093405.5U CN211687478U (en) | 2019-11-28 | 2019-11-28 | Defeated coal transfer point presses down dirt system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922093405.5U CN211687478U (en) | 2019-11-28 | 2019-11-28 | Defeated coal transfer point presses down dirt system |
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| Publication Number | Publication Date |
|---|---|
| CN211687478U true CN211687478U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922093405.5U Active CN211687478U (en) | 2019-11-28 | 2019-11-28 | Defeated coal transfer point presses down dirt system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477005A (en) * | 2021-06-15 | 2021-10-08 | 浙江浙能温州发电有限公司 | Unpowered dust removal system suitable for coal is transported |
| CN115709889A (en) * | 2022-11-09 | 2023-02-24 | 华能国际电力股份有限公司井冈山电厂 | Device and method for preventing bridging of raw coal bunker adherent coal of power plant |
-
2019
- 2019-11-28 CN CN201922093405.5U patent/CN211687478U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113477005A (en) * | 2021-06-15 | 2021-10-08 | 浙江浙能温州发电有限公司 | Unpowered dust removal system suitable for coal is transported |
| CN115709889A (en) * | 2022-11-09 | 2023-02-24 | 华能国际电力股份有限公司井冈山电厂 | Device and method for preventing bridging of raw coal bunker adherent coal of power plant |
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