CN213643545U

CN213643545U - Dust removal device of coal conveying system of power station

Info

Publication number: CN213643545U
Application number: CN202022477208.6U
Authority: CN
Inventors: 邓立志
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-07-09
Anticipated expiration: 2030-10-29

Abstract

The utility model discloses a power station coal conveying system dust collector relates to power station environmental protection technical field, including coal conveying support and the coal conveying belt of installing at coal conveying support top, coal conveying belt's the fixed bow-shaped baffle box that is provided with in top, the fixed coal breakage pipe that is provided with in one end top of bow-shaped baffle box, the middle part of bow-shaped baffle box is provided with the pipe, the pipe internal fixation is provided with air exhauster and spray set, the fixed collection funnel that is provided with in bottom of pipe. In the utility model, the dust removing device of the coal conveying system of the power station adopts a water dust removing mode, which can not be influenced by the gas humidity and can not influence the humidity of the coal on the coal conveying belt; this power station coal conveying system dust collector need not to shut down and change internal dust collector, and the waste water that the dust removal produced can recycle, has reduced the cost of removing dust, has improved the efficiency of removing dust simultaneously.

Description

Dust removal device of coal conveying system of power station

Technical Field

The utility model relates to a power station environmental protection technology field, more specifically say, in particular to power station coal conveying system dust collector.

Background

The great dust hazard of power plants, central heating plants, coal mines and the like is a common problem, and pulse bag dust collectors and multi-pipe impact dust collectors are generally used as dust removal facilities in the design of coal conveying systems. A large amount of gangue is used in a thermal power plant, dust of coal conveying equipment seriously exceeds the standard, so that the working load of each belt dust remover of a coal conveying system is large, the problems of complex equipment maintenance, more faults, serious dust pollution and the like of the dust removing system exist, and the working efficiency of the coal conveying system and the physical health of workers are seriously influenced.

Therefore, the Chinese patent publication No. CN204642940U discloses a dust removal device of a power station coal conveying system, which comprises a coal conveying bracket, a coal conveying belt, an arched guide chute, an ash bucket, a vibration dust removal device, a coal dropping pipe, a film-coated flat bag-type dust remover, a spray head, a double-layer curtain and an edge sealing element. The dust-containing gas in the arched guide chute is sucked into the filter chamber from the lower air inlet by the film-coated flat bag dust collector and spreads on the filter bag, the dust is blocked by the filter bag, and the purified air passes through the bag wall and is discharged from the air outlet through the fan chamber. The automatic sensing detection rapping device enables two odd groups of flat cloth bags to be inserted between the two groups of flat cloth bags to generate asynchronous opposite-rapping vibration, the cloth bags are closed in time when being flapped, high air pressure is generated between the cloth bags when the cloth bags are closed, low air pressure is generated between the cloth bags when the cloth bags are separated, and the air pressure difference between two sides of each cloth bag forms back-blowing pulse airflow, so that dust can be accumulated on the cloth bags thoroughly, and the purpose of optimally filtering and removing ash is achieved.

However, the adoption of the film-coated flat bag-type dust collector has the following disadvantages:

1. the requirement on the humidity of the gas is high, and when the humidity of the gas is high, the carried dust has high hygroscopicity, so that a filter bag is usually bonded and blocks a filter material, and the flat bag type bag dust collector with the membrane is incapable of normally operating;

2. the tectorial membrane flat bag dust remover need regularly change the sack that inside filter dust was used, and changes the sack futilely and need the workman to enter into the inside of equipment and change, can influence the normal operating of equipment, reduces dust collection efficiency.

Therefore, we propose a dust removal device for a coal conveying system of a power station to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems existing in the prior art and providing a dust removal device for a coal conveying system of a power station.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a power station coal conveying system dust collector, includes coal conveying support and installs the coal conveying belt at coal conveying support top, the fixed bow-shaped baffle box that is provided with in top of coal conveying belt, the fixed coal breakage pipe that is provided with in one end top of bow-shaped baffle box, the middle part of bow-shaped baffle box is provided with the pipe, air exhauster and spray set are provided with to the pipe internal fixation, the fixed collection funnel that is provided with in bottom of pipe, the bottom of pipe is provided with the water inlet that corresponds with the collection funnel, the output of collecting the funnel is connected with the processing pond through drainage pipe, the processing pond is used for handling waste water and recycles, the fixed water pump that is provided with in top of processing pond, the output and the input of water pump all are connected with spray set and processing pond respectively through the conveyer.

Preferably, a rapping dust-settling device and an ash hopper are arranged at the top of one end, close to the coal dropping pipe, of the arched guide chute.

Preferably, the spraying device is composed of a plurality of spray heads which are arranged at equal intervals.

Preferably, a double-layer curtain for shielding dust is installed at one end of the arched guide chute far away from the coal dropping pipe.

Preferably, the arc-shaped guide chute is connected with the coal conveying belt through a sealing piece.

The embodiment of the utility model provides a technical scheme can include following beneficial effect:

1. compared with the prior art, the dust removal device of the coal conveying system of the power station adopts a water dust removal mode, is not influenced by gas humidity, and simultaneously does not influence the humidity of coal on a coal conveying belt;

2. compared with the prior art, the utility model discloses in, this power station coal conveying system dust collector need not to change shutting down to inside dust collector, and the waste water that the dust removal produced can recycle, has reduced the cost of removing dust, has improved the efficiency of removing dust simultaneously.

Drawings

Fig. 1 is a schematic structural view of a dust removing device of a coal conveying system of a power station provided by the utility model;

fig. 2 is the utility model provides a connection structure sketch map of pipe, collection funnel, air exhauster, spray set, water pump, processing pond, drainage pipe and conveyer pipe among power station coal conveying system dust collector.

In the figure: 1. a coal conveying bracket; 2. a coal conveying belt; 3. an arcuate chute; 4. a coal dropping pipe; 5. vibrating a dust falling device; 6. an ash hopper; 7. a conduit; 8. a treatment tank; 9. a water pump; 10. a delivery pipe; 11. an exhaust fan; 12. a spraying device; 13. a collection funnel; 14. a water discharge pipeline; 15. double-layer curtain blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-2, a dust removing device for a coal conveying system of a power station comprises a coal conveying support 1 and a coal conveying belt 2 installed on the top of the coal conveying support 1, an arc-shaped guide chute 3 is fixedly arranged on the top of the coal conveying belt 2, a coal dropping pipe 4 is fixedly arranged on the top of one end of the arc-shaped guide chute 3, a guide pipe 7 is arranged in the middle of the arc-shaped guide chute 3, an exhaust fan 11 and a spraying device 12 are fixedly arranged in the guide pipe 7, a collecting funnel 13 is fixedly arranged at the bottom of the guide pipe 7, a water inlet corresponding to the collecting funnel 13 is arranged at the bottom of the guide pipe 7, the output end of the collecting funnel 13 is connected with a treatment tank 8 through a drainage pipe 14, the treatment tank 8 is used for treating and reusing wastewater, a water pump 9 is fixedly arranged on the top of the treatment tank 8, and the output.

The duct 7 is used for conveying the dust-laden gas inside the arch-shaped material guide chute 3 to the outside so as to facilitate dust removal through the spraying device 12.

The exhaust fan 11 is used for accelerating the efficiency of gas entering the guide pipe 7, improving the efficiency of dust removal of gas in the arch-shaped guide chute 3, preventing moist gas in the guide pipe 7 from flowing back into the arch-shaped guide chute 3 and increasing the moisture of coal on the coal conveying belt 2.

The water pump 9 is for conveying water in the treatment tank 8 to the interior of the shower device 12, and for performing dust removal treatment on the gas passing through the interior of the shower device 12.

The treatment tank 8 is used for treating the wastewater generated by dust removal so as to be reused, and the cost for removing dust of the coal conveying system is reduced.

The collecting hopper 13 serves to accelerate the speed of the wastewater generated by the dust removal into the treatment tank 8.

More specifically, a rapping dust-settling device 5 and an ash hopper 6 are arranged at the top of one end of the arched material guide chute 3 close to the coal dropping pipe 4.

More specifically, the spraying device 12 is composed of a plurality of spray heads arranged equidistantly. In order to facilitate the dust removal of the gas entering the interior of the duct 7.

More specifically, a double curtain 15 for shielding dust is installed at one end of the arched guide chute 3 away from the coal dropping pipe 4.

The double-layer baffle curtain 15 is used for preventing the gas mixed with dust from being discharged into the air through one end of the arched material guide groove 3 far away from the rapping dust-settling device 5, and preventing the influence on the health of workers.

More specifically, the arcuate chute 3 is connected to the coal belt 2 through a seal.

The sealing element has the function of preventing the gas mixed with dust from being discharged into the air through the gap at the joint of the arc-shaped material guide groove 3 and the coal conveying belt 2, and preventing the influence on the physical health of workers.

The utility model discloses in, inside coal entered into bow-shaped baffle box 3 through coal breakage pipe 4, and place when carrying on the coal conveying belt 2, coal falls into the dust that strikes the production each other between coal conveying belt 2's the surface and the coal and mixes in the air, the inside of pipe 7 is carried through air exhauster 11 to air between bow-shaped baffle box 3 and the coal conveying belt 2, discharge in the air after spray set 12 removes dust, the waste water that sprays the production enters into through collecting funnel 13 and drainage pipe 14 and handles in handling pond 8, then carry the inside of spray set 12 through water pump 9 and continue to use. This power station coal conveying system dust collector adopts the mode that water removed dust, can not receive the influence of gas humidity, still can not cause the influence to the moisture of the coal on the coal conveying belt 2 simultaneously, and in addition, this power station coal conveying system dust collector need not to shut down and change internal dust collector, and the waste water that removes dust and produce can recycle, has reduced the cost of removing dust, has improved the efficiency of removing dust simultaneously.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A dust removal device of a power station coal conveying system comprises a coal conveying support (1) and a coal conveying belt (2) arranged at the top of the coal conveying support (1), wherein an arched guide chute (3) is fixedly arranged at the top of the coal conveying belt (2), a coal dropping pipe (4) is fixedly arranged at the top of one end of the arched guide chute (3), the dust removal device is characterized in that a guide pipe (7) is arranged in the middle of the arched guide chute (3), an exhaust fan (11) and a spraying device (12) are fixedly arranged in the guide pipe (7), a collecting hopper (13) is fixedly arranged at the bottom of the guide pipe (7), a water inlet corresponding to the collecting hopper (13) is formed in the bottom of the guide pipe (7), the output end of the collecting hopper (13) is connected with a treatment tank (8) through a drainage pipe (14), and the treatment tank (8) is used for treating and reusing wastewater, the top of the treatment pool (8) is fixedly provided with a water pump (9), and the output end and the input end of the water pump (9) are respectively connected with a spraying device (12) and the treatment pool (8) through a conveying pipe (10).

2. The dust removing device of the coal conveying system of the power station as claimed in claim 1, wherein a rapping dust-settling device (5) and an ash hopper (6) are arranged at the top of one end of the arched material guiding chute (3) close to the coal dropping pipe (4).

3. The dust removing device of the coal conveying system of the power station as claimed in claim 1, wherein the spraying device (12) is composed of a plurality of spray nozzles arranged equidistantly.

4. The dust removing device for the coal conveying system of the power station as claimed in claim 1, wherein a double-layer curtain (15) for shielding dust is installed at one end of the arched material guide chute (3) far away from the coal dropping pipe (4).

5. The dust removing device of the coal conveying system of the power station as claimed in claim 1, wherein the arch-shaped material guiding chute (3) is connected with the coal conveying belt (2) through a sealing piece.