Pulse injection ash removal device of pulverized coal bag type dust collector

Abstract

The utility model discloses a pulse injection deashing device of a pulverized coal bag type dust collector, which relates to the technical field of dust collectors and comprises a box body, a filter cavity and an exhaust cavity are arranged in the box body, a plurality of dust collecting bags are fixedly connected in the filter cavity, and an electromagnetic pulse valve is fixedly connected at the top in the exhaust cavity. The output end of the electromagnetic pulse valve communicates with a blowing pipe, the bottom of the blowing pipe communicates with a plurality of first nozzles, the bottoms of the first nozzles communicate with connecting pipes, the outer sides of the connecting pipes are movably connected with adjusting pipes, the outer sides of the adjusting pipes are fixedly connected with adjusting equipment, and the interior of the top of each adjusting pipe is fixedly connected with a sealing ring. The inner wall of the sealing ring is tightly attached to the outer wall of the connecting pipe, the outer side of the bottom of the adjusting pipe is communicated with a plurality of second sprayers, the adjusting pipe can be driven to extend towards the interior of the dust collecting bag so as to carry out dust removal work on the bottom of the dust collecting bag, and the dust removal effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, in particular to a pulse jet dust cleaning device for a coal powder bag type dust collector. Background Art

[0002] Bag dust collector is an efficient dust removal equipment that uses bag filter elements to capture dust in dust-laden gas to purify the gas. At the same time, the dust trapped on the surface of the filter bag is removed through the cleaning mechanism to regenerate the filter bag and restore its filtering function. Bag dust collector has the characteristics of high dust removal efficiency, stable and reliable operation, low emission concentration, wide application range, and convenient maintenance. However, when the bag dust collector is running, as the dust accumulates on the filter bag, the resistance will continue to increase, and when it reaches a certain level, the filter bag needs to be cleaned. The cleaning effect directly affects the economic operation of the bag dust collector. Poor cleaning effect will increase the operating resistance of the bag dust collector, resulting in energy waste.

[0003] At present, the blowing head of the existing pulse jet cleaning equipment is usually arranged above the opening end of the dust bag. During the spraying, the closer to the blowing head, the better the cleaning effect, while the bottom of the dust bag is not cleaned thoroughly, resulting in poor cleaning effect. Therefore, in order to solve the above-mentioned problem, we propose a pulse jet cleaning device for coal powder bag dust collector. Utility Model Content

[0004] The utility model aims to solve the defects in the prior art and proposes a pulse jet dust cleaning device for a coal powder bag type dust collector.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pulse jet cleaning device for a coal powder bag dust collector comprises a box body, wherein a filter chamber and an exhaust chamber are provided inside the box body, a plurality of dust removal bags are fixedly connected to the inside of the filter chamber, an electromagnetic pulse valve is fixedly connected to the top of the exhaust chamber, an output end of the electromagnetic pulse valve is connected to a spray pipe, a plurality of first nozzles are connected to the bottom of the spray pipe, a plurality of first nozzles are connected to a connecting pipe at the bottom, an adjusting pipe is movably connected to the outer side of the connecting pipe, and an adjusting device is fixedly connected to the outer side of the adjusting pipe.

[0007] Furthermore, a sealing ring is fixedly connected to the inside of the top of the regulating tube, the inner wall of the sealing ring is in close contact with the outer wall of the connecting tube, and the outer side of the bottom of the regulating tube is connected to a plurality of second nozzles.

[0008] Furthermore, the adjusting device includes a connecting ring, a connecting rod, a cross bar and a cylinder, the connecting ring is fixedly connected to the outside of the adjusting tube, the connecting rod is fixedly connected to the top of the connecting ring, the connecting rod is fixedly connected to the bottom of the cross bar, the cross bar is fixedly connected to the bottom of the cylinder output end, and the cylinder is fixedly connected to the top of the inside of the box.

[0009] Furthermore, the bottom of one side of the box is connected to an air inlet pipe, the bottom of the other side of the box is connected to an air exhaust pipe, one end of the air exhaust pipe is connected to a fan, and the output end of the fan is connected to an exhaust pipe.

[0010] Furthermore, one end of the air inlet pipe is connected to the filter chamber, and one end of the air extraction pipe is connected to the exhaust chamber.

[0011] Furthermore, an ash hopper is fixedly connected to the bottom of the box body, and the ash hopper is connected to the filter chamber.

[0012] Compared with the prior art, the beneficial effect of the utility model lies in that the adjusting device provided in the present application can drive the adjusting tube to extend into the interior of the dust bag to clean the bottom of the dust bag, thereby improving the cleaning effect, and the several second nozzles provided can spray the inner wall of the dust bag from different directions, thereby further improving the dust removal and cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the box of the utility model;

[0016] Figure 3 It is an enlarged schematic diagram of the structure at A of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the regulating tube of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the connecting ring of the utility model.

[0019] In the figure: 1. box body; 2. air inlet pipe; 3. exhaust pipe; 4. fan; 5. exhaust pipe; 6. ash hopper; 7. filter chamber; 8. exhaust chamber; 9. dust bag; 10. electromagnetic pulse valve; 11. spray pipe; 12. first nozzle; 13. connecting pipe; 14. regulating pipe; 15. connecting ring; 16. cylinder; 17. sealing ring; 18. second nozzle; 19. connecting rod; 20. cross bar. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0021] Reference Figure 1-5 A pulse jet cleaning device for a pulverized coal bag dust collector comprises a box body 1, a filter chamber 7 and an exhaust chamber 8 are provided inside the box body 1, a plurality of dust removal bags 9 are fixedly connected inside the filter chamber 7, an electromagnetic pulse valve 10 is fixedly connected to the top of the exhaust chamber 8, an output end of the electromagnetic pulse valve 10 is connected to a spray pipe 11, a plurality of first nozzles 12 are connected to the bottom of the spray pipe 11, a plurality of first nozzles 12 are connected to a connecting pipe 13 at their bottoms, an adjusting pipe 14 is movably connected to the outer side of the connecting pipe 13, and an adjusting device is fixedly connected to the outer side of the adjusting pipe 14.

[0022] A sealing ring 17 is fixedly connected to the inside of the top of the regulating tube 14, and the inner wall of the sealing ring 17 is in close contact with the outer wall of the connecting tube 13. The outer side of the bottom of the regulating tube 14 is connected to a plurality of second nozzles 18. The sealing ring 17 is used to improve the sealing effect of the connection between the connecting tube 13 and the regulating tube 14 to prevent air leakage at the connection gap.

[0023] The adjusting device includes a connecting ring 15, a connecting rod 19, a cross bar 20 and a cylinder 16. The connecting ring 15 is fixedly connected to the outside of the adjusting tube 14, the connecting rod 19 is fixedly connected to the top of the connecting ring 15, the connecting rod 19 is fixedly connected to the bottom of the cross bar 20, the cross bar 20 is fixedly connected to the bottom of the output end of the cylinder 16, and the cylinder 16 is fixedly connected to the top inside the box 1.

[0024] When the cylinder 16 is started, the cross bar 20, the connecting rod 19 and the connecting ring 15 cooperate to drive the adjusting pipe 14 to move along the connecting pipe 13, so that the second nozzle 18 can clean the dust below the dust bag 9.

[0025] The bottom of one side of the box body 1 is connected to an air inlet pipe 2, the bottom of the other side of the box body 1 is connected to an air exhaust pipe 3, one end of the air exhaust pipe 3 is connected to a fan 4, and the output end of the fan 4 is connected to an exhaust pipe 5.

[0026] One end of the air inlet pipe 2 is connected to the filter chamber 7 , and one end of the air extraction pipe 3 is connected to the exhaust chamber 8 .

[0027] When the fan 4 is running, the air enters the filter chamber 7 through the air inlet pipe 2 and is filtered by the dust bag 9, then enters the exhaust chamber 8 and the exhaust pipe 3, and the clean air is discharged from the exhaust pipe 5.

[0028] An ash hopper 6 is fixedly connected to the bottom of the box body 1 , and the ash hopper 6 is connected to the filter chamber 7 . The ash hopper 6 is used to store the coal dust filtered by the dust removal bag 9 .

[0029] Working principle: After the fan 4 is started, the outside air enters the filter chamber 7 through the air inlet pipe 2 and is filtered by the dust bag 9, and then enters the exhaust chamber 8 and the suction pipe 3, and the clean air is discharged from the exhaust pipe 5. During cleaning, the electromagnetic pulse valve 10 works to make the air of the pulse air pump be transported through the blowing pipe 11, the first nozzle 12, the connecting pipe 13 and the regulating pipe 14, and is sprayed from the second nozzle 18 to clean the top of the dust bag 9 by blowing. Then the cylinder 16 is started, and the cross bar 20, the connecting rod 19 and the connecting ring 15 cooperate to drive the regulating pipe 14 to move downward along the connecting pipe 13, so that the regulating pipe 14 extends into the dust bag 9, and is sprayed again. The bottom of the dust bag 9 can be sprayed to improve the cleaning effect.

Claims

1. A pulse jet dust cleaning device for a coal powder bag filter, comprising a housing (1), characterized in that: The box body (1) is provided with a filter chamber (7) and an exhaust chamber (8) inside. A plurality of dust removal bags (9) are fixedly connected inside the filter chamber (7). An electromagnetic pulse valve (10) is fixedly connected to the top of the exhaust chamber (8). The output end of the electromagnetic pulse valve (10) is connected to a blow pipe (11). The bottom of the blow pipe (11) is connected to a plurality of first nozzles (12). The bottoms of the plurality of first nozzles (12) are all connected to a connecting pipe (13). The outer side of the connecting pipe (13) is movably connected to an adjusting pipe (14). The outer side of the adjusting pipe (14) is fixedly connected to an adjusting device.

2. The pulse jet cleaning device for a coal powder bag dust collector according to claim 1 is characterized in that: A sealing ring (17) is fixedly connected to the interior of the top of the regulating tube (14), the inner wall of the sealing ring (17) is in close contact with the outer wall of the connecting tube (13), and the outer side of the bottom of the regulating tube (14) is connected to a plurality of second nozzles (18).

3. The pulse jet cleaning device for a coal powder bag dust collector according to claim 1 is characterized in that: The regulating device comprises a connecting ring (15), a connecting rod (19), a cross rod (20) and a cylinder (16); the connecting ring (15) is fixedly connected to the outside of the regulating tube (14); the connecting rod (19) is fixedly connected to the top of the connecting ring (15); the connecting rod (19) is fixedly connected to the bottom of the cross rod (20); the cross rod (20) is fixedly connected to the bottom of the output end of the cylinder (16); and the cylinder (16) is fixedly connected to the top of the inside of the box (1).

4. The pulse jet cleaning device for a coal powder bag dust collector according to claim 1 is characterized in that: The bottom of one side of the box body (1) is connected to an air inlet pipe (2), the bottom of the other side of the box body (1) is connected to an air exhaust pipe (3), one end of the air exhaust pipe (3) is connected to a fan (4), and the output end of the fan (4) is connected to an exhaust pipe (5).

5. The pulse jet cleaning device for a coal powder bag dust collector according to claim 4, characterized in that: One end of the air inlet pipe (2) is connected to the filter chamber (7), and one end of the air extraction pipe (3) is connected to the exhaust chamber (8).

6. The pulse jet cleaning device for coal powder bag dust collector according to claim 1 is characterized in that: An ash hopper (6) is fixedly connected to the bottom of the box body (1), and the ash hopper (6) is connected to the filter chamber (7).

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