CN2481677Y

CN2481677Y - Coal conveying belt transfer point self-circulation dust-removing device

Info

Publication number: CN2481677Y
Application number: CN 01208426
Authority: CN
Inventors: 赵兴成
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-25
Filing date: 2001-02-25
Publication date: 2002-03-13
Anticipated expiration: 2011-02-25

Abstract

The utility model relates to a coal conveying belt transfer point self-circulation dust-removing device, comprising a long tube coal dropping pipe, wherein a chute taking the shape of a reverse trapeziform is arranged on the lower end of the long tube coal dropping pipe; an air-lock device is arranged between the coal dropping pipe and the chute; a coal conveying belt conveyor is connected to the lower part of the chute; a labyrinth structure consisting of an upper cover plate, a side baffle and a horizontally arranged gripper and a dust hood are arranged inside the chute; a circular dust-removing structure is formed by the labyrinth structure, the dust hood, a dust collection opening, a dust gas value, a ventilator and the air-lock device; an electric power distribution cabinet is used for supply power and control the belt conveyer and the ventilator. The utility model has the advantages of a reasonable and simple structure, reliable operation, no occupation of building space, convenient maintenance, small investment, instant effect and high efficiency, thereby the utility model is a relatively ideal environment protective dust-removing device.

Description

Coal conveyer belt transfer point self-circulation type dust collector

The utility model relates to a kind of coal conveyer belt transfer point self-circulation type dust collector, belongs to dedusting environment friendly equipment.

At present, coal-burning power plant's coal handling system is in operation process, dust from flying, work-site and surrounding environment cause gross pollution, not only make operative employee's occupational disease attack rate higher, and the periphery resident of plant area is influenced by it also, for this reason, department of State Grid once organized scientific research and design institute and power plant's synergistic operation, successively release dust collectors such as cloth-bag type, high-pressure electrostatic formula, spray water-bath type, but it was undesirable all to exist dust removing effects in actual applications, unstable properties, maintenance is bigger, etc. problem, and still desirable without comparison so far dust collector.

The utility model purpose provides and a kind ofly can reduce dust pollution at coal conveyer belt transfer point place, coal-burning power plant, improve integrated environment, reduces labor strength, reduces maintenance, and dedusting is environmental protection equipment efficiently.

The principle of present technique is to install the labyrinth type dust excluding hood in the deflector chute of coal conveyer belt transfer point additional, promptly when coal drop to from coal spout guide poor in the time, because coal is in the process of free fall, produce bigger shock wave, carry a large amount of induced airs, inducing a large amount of dust of generation under the wind action, because the labyrinth type dust excluding hood is equipped with some damping plates and outer wall formation in deflector chute, enter the inhibition that is subjected to the damping plate in the dust excluding hood when containing a large amount of dust air-flows, a large amount of dust impinge upon on the damping plate and fall, and the pressure of induced air is descended rapidly, wind speed weakens, and dust-contained airflow purifies, and remaining dirt gas is driven in the flapper of coal spout by blower fan again, and the phenomenon of dirt gas exhaust to atmosphere has been avoided in the formation self-loopa.

The technical solution of the utility model is achieved in that to include under the coal spout and connects flapper, deflector chute, coal conveyer belts and electric power distribution cabinet, in deflector chute, be provided with connect with upper cover plate, the damping plate, and the transversely arranged and labyrinth type dust excluding hood that constitutes of damping plate, and through suction port, the dirt air valve, blower fan and adapter thereof are got back to again in the self-loopa dedusting structure of flapper formation.

Below with reference to drawings and Examples the utility model is described in further details

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model labyrinth type dust excluding hood longitudinal sectional drawing.

Fig. 3 is the attached pseudosection of labyrinth type dust excluding hood structure for the utility model.

Fig. 4 is the horizontal section structure scheme drawing of the utility model labyrinth type dust excluding hood.

In Fig. 1,2,3,4,1. 4. connections of flange 2. upper cover plates 3. damping plates are organized 5. bolts, 6. side plate washers, 7. dirt air-flows to 8. deflector chute side plate washers, 9. bolts, 10. coal spouts, 11. flappers, 12. blower fans, 13. dirt air valves 14, coal conveyer belts 15. deflector chutes 16. labyrinth type dust excluding hoods 17. suction ports 18. electric power distribution cabinets

In Fig. 1, be the coal spout (10) of the known rectangular tubular made from steel plate, the lower end connects the slideway of deflector chute (15) the formation coal of epimere belt feeder (14) head hood and hypomere belt feeder (14) afterbody, coal is slided to by epimere belt feeder (14) head in the deflector chute (15) on the belt of belt feeder (14) afterbody through coal spout (10), flapper (11) is the rectangle tubular structure that steel plate is made, for there are two mobilizable oblique liner plates of symmetry common inside, the free up-and-down movement of energy under the effect of coal, to reduce shock wave to belt, play automatic sealing process, it is installed in the middle of coal spout (10) and the deflector chute (15), deflector chute (15) is to make inverted trapezoidal structure by steel plate, connect with coal spout (10) in coal conveyer belts (14) afterbody upper end, coal conveyer belts (14) for commonly used mainly by belt frame, dragging roller, cylinder, motor constitutes, for transporting the usefulness of coal, electric power distribution cabinet (18) is by line powering and control motor on the belt feeder and blower fan (12) etc., its special character is to be provided with in the deflector chute (15) with horizontal vertical several damping plates (3) that connect of upper cover plate (2) and constitutes the labyrinth type dust excluding hood with both sides plate washer (6), press the dirt air-flow to (7) through the labyrinth, again with suction port (17), dirt air valve (13), blower fan (12) and connecting leg thereof also are opened on flapper (1) and have formed the self-loopa dedusting structure.

In Fig. 2, embodiment shown in Figure 3, they are positioned at the inboard of deflector chute side plate washer (8) outer wall that the labyrinth type dust excluding hood is made up of upper cover plate (2) and both sides plate washer (6), several staggered damping plates (6) are arranged in dust excluding hood (16), be connected with upper cover plate (2) by connection group (4), the flange (1) of upper cover plate (2) is connected with deflector chute (15) with bolt (9), can be connected in series multistage labyrinth type dust excluding hood (16) in the deflector chute (15).

The utility model rational in infrastructure simple, reliable, do not have the blocking pipeline phenomenon, do not account for space, do not establish between dedusting, dustproof efficient height, small investment, instant effect, maintenance are a kind of more satisfactory dedusting environment friendly device easily.

Claims

1, coal conveyer belt transfer point self-circulation type dust collector, one long tubular coal spout (10) is arranged, the lower end connects the deflector chute (15) of coal conveyer belts (14) head and afterbody, flapper (11) is in the middle of coal spout (10) and the deflector chute (15) for tubular structure, deflector chute (15) is an inverted trapezoidal structure, connect with coal spout (10) in coal conveyer belts (14) afterbody upper end, coal conveyer belts (14) is by common belt frame, dragging roller, cylinder, motor constitutes, electric power distribution cabinet (18) is by line powering and control the motor and the blower fan (12) of belt feeder (14), it is characterized in that: establish in the deflector chute (15) and perpendicular and transversely arranged bonded assembly damping plate (3) of upper cover plate (2) and side plate washer (6) composition labyrinth type dust excluding hood (16), and with suction port (17), dirt air valve (13), blower fan (12) flapper (11) and connecting tube thereof form circulation from dedusting structure.

2, coal conveyer belt transfer point self-circulation type dust collector according to claim 1, it is characterized in that: the labyrinth type dust excluding hood is formed outer wall by upper cover plate (2) and two avris plate washers (6), its inside has several damping plates (2) to be staggered arrangement by coupling assembly (4) with upper cover plate (2) to connect, the flange (1) of upper cover plate (2) has bolt (9) to be connected with deflector chute (15), insert in the flapper (11) through blower fan (12) outlet pipe, can establish multistage labyrinth type dust excluding hood (16) in (15) in the deflector chute.