Integrated bag type dust collector capable of deeply removing sparks

Abstract

The utility model discloses an integrated bag type dust collector capable of deeply removing sparks, which comprises a steel bracket, and a ring beam is arranged at the top of the steel bracket; a middle box body is arranged above the ring beam; a filter chamber and a gas chamber are arranged in the middle box body; an ash hopper is arranged below the middle box body, and a uniform flow layer is arranged between the filter chamber and the ash hopper; an upper box body is arranged at the top of the middle box body, and an ash removal mechanism is arranged in the upper box body; a gate valve is arranged below the ash bucket, and a star-shaped ash discharging valve is arranged below the gate valve; an air volume adjusting valve is arranged at an outlet in the lower part of the gas chamber; a spark catcher is arranged at the lower part of the air volume adjusting valve, and an outlet of the spark catcher is communicated with an air inlet bent pipe; an outlet of the air inlet elbow is communicated with the ash bucket; the controlled ends of the ash removal mechanism, the star-shaped ash discharging valve and the air volume adjusting valve are all connected with the PLC. According to the utility model, sparks in flue gas can be deeply removed, the sparks are prevented from entering the dust remover, and safety accidents such as fire disasters or explosion are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, and more specifically to a bag type dust collector for deep spark removal. Background Art

[0002] When dealing with high-concentration and spark-containing flue gas, traditional bag filters usually require a set of powerful coarse filtration devices in front to ensure the safety and long-term use of the filter bags. This is because once the sparks in the flue gas, especially those large particles, enter the filter bag directly without pre-treatment, it is very likely to cause the bag to be burned, thereby greatly shortening its service life.

[0003] Although installing a cyclone dust collector is a common pretreatment method in the prior art, it is obviously not the best choice for places with limited space due to its large footprint. Moreover, even if a cyclone dust collector is installed, its spark removal effect is often unsatisfactory.

[0004] Therefore, we need an integrated bag dust collector that can deeply remove sparks. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide an integrated bag dust collector for deep spark removal to solve the problems in the background technology.

[0006] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0007] A deep spark removal integrated bag dust collector comprises a steel support, a horizontally arranged ring beam is arranged on the top of the steel support; a middle box body is arranged above the ring beam, a filter chamber is arranged on the left and right sides of the middle box body, and a gas chamber is arranged between the two filter chambers; an ash hopper is arranged below the middle box body, and a uniform flow layer is arranged between the filter chamber and the ash hopper; an upper box body is arranged on the top of the middle box body, and a ash cleaning mechanism is arranged in the upper box body; a gate valve is arranged below the ash hopper, a star-shaped ash unloading valve is arranged below the gate valve, and a plurality of baffles are arranged in the ash hopper; an air volume regulating valve is arranged at the outlet of the lower part of the gas chamber; a spark arrester is arranged at the lower part of the air volume regulating valve, and the outlet of the spark arrester is connected with an air inlet elbow; the outlet of the air inlet elbow is connected to the upper part of an adjacent ash hopper, and the outlet of the air inlet elbow is opposite to the setting area of ​​the baffle; the controlled ends of the ash cleaning mechanism, the star-shaped ash unloading valve and the air volume regulating valve are all connected to a PLC controller.

[0008] To further optimize the technical solution, the filter chamber includes a bag cage, and a cloth bag for dust removal is provided on the bag cage.

[0009] To further optimize the technical solution, the cleaning mechanism includes a blow pipe horizontally arranged above the bag opening of the cloth bag, and the blow pipe is connected to an air distribution box located above the upper box body; an offline valve is provided next to the air distribution box.

[0010] To further optimize the technical solution, inlet and outlet guide plates are provided at the inlet and outlet of the gas chamber.

[0011] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0012] The utility model provides a deep spark removal integrated bag dust collector. The integrated design makes the dust removal system compact and the overall footprint small; the operation status of the dust collector can be controlled in real time through the PLC controller. The utility model has efficient dust removal and spark removal capabilities, which can not only efficiently remove dust in the flue gas, but also accurately capture and deeply remove the sparks therein, thereby preventing sparks from entering the dust collector and avoiding safety accidents such as fire or explosion, so as to ensure that the bag dust collector can operate stably and safely when processing high-concentration spark-containing flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Among them: 1. Steel support, 2. Star-shaped ash unloading valve, 3. Gate valve, 4. Ash hopper, 5. Baffle, 6. Air inlet elbow, 7. Ring beam, 8. Spark arrester, 9. Air volume regulating valve, 10. Middle box, 11. Inlet and outlet guide plates, 12. Cloth bags, 13. Bag cage, 14. Off-line valve, 15. Injection pipe, 16. Air distribution box, 17. Upper box, 19. Uniform flow layer. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] A deep spark removal integrated bag dust collector, combined with Figure 1 As shown, it includes a steel support 1, a star-shaped ash discharge valve 2, a plug valve 3, an ash hopper 4, a baffle 5, an air inlet elbow 6, a ring beam 7, a spark arrester 8, an air volume regulating valve 9, a middle box 10, an inlet and outlet guide plate 11, a gas chamber 18, an offline valve 14, a ash cleaning mechanism, an upper box 17, and a uniform flow layer 19. The ash cleaning mechanism includes a spray pipe 15 and an air distribution box 16, and the filter chamber includes a cloth bag 12 and a bag cage 13.

[0017] A horizontally arranged ring beam 7 is arranged on the top of the steel support 1, and a middle box 10 is arranged above the ring beam 7. A filter chamber is arranged on both sides of the middle box 10, and a gas chamber 18 is arranged between the two filter chambers.

[0018] A filter chamber is arranged in the middle box body 10, and the filter chamber includes a bag cage 13, and a cloth bag 12 for dust removal is sleeved on the bag cage 13.

[0019] An ash hopper 4 is arranged below the middle box 10, a uniform flow layer 19 is arranged between the filter chamber and the ash hopper 4, and a plurality of baffles 5 are arranged inside the ash hopper 4. Relatively large particles lose kinetic energy in the baffle 5 area and fall into the ash hopper 4 after settling. A gate valve 3 is arranged below the ash hopper 4, and a star-shaped ash discharge valve 2 is arranged below the gate valve 3, so that ash can be cleaned regularly.

[0020] The inlet and outlet guide plates 11 are arranged at the inlet and outlet of the gas chamber 18. The outlet is arranged at the lower part of the gas chamber 18, and the air volume regulating valve 9 is arranged at the outlet. The spark arrester 8 is arranged at the lower part of the air volume regulating valve 9 to remove the sparks for the first time. The outlet of the spark arrester 8 is connected with the air inlet elbow 6, and the outlet of the air inlet elbow 6 is connected to the upper part of the adjacent ash hopper 4, and the outlet of the air inlet elbow 6 is opposite to the setting area of ​​the baffle 5, and the baffle 5 removes the sparks for the second time.

[0021] An upper box 17 is arranged on the top of the middle box 10, and a dust cleaning mechanism is arranged in the upper box 17; the dust cleaning mechanism includes a blowing pipe 15 horizontally arranged above the bag opening of the cloth bag 12, and the blowing pipe 15 is connected to the air distribution box 16 located above the upper box 17. An offline valve 14 is arranged next to the air distribution box 16, and whether the cloth bag 12 is sprayed is controlled by the air distribution box 16.

[0022] The controlled ends of the dust cleaning mechanism, the plug valve 3, the star-shaped dust discharge valve 2 and the air volume regulating valve are all connected to the PLC controller.

[0023] When the utility model is actually used, the dusty smoke with sparks passes through the air inlet and outlet guide plate 11 in the gas chamber 18, and the air volume is adjusted by the air volume regulating valve 9, so that the smoke entering the middle box 10 is uniform. When the sparks in the smoke pass through the spark arrester 8, the sparks are captured under the action of centrifugal sedimentation. The remaining sparks enter the air inlet elbow 6 with the smoke, and after entering the ash hopper 4, they contact the baffle 5 in the ash hopper 4. The sparks are blocked by the surface of the baffle 5, and the sparks and large dust particles fall into the ash hopper 4. After the dusty smoke enters the bag 12, it is filtered by the bag 12, and the dust particles are blocked outside the bag 12. The clean gas enters the upper box 17 through the bag mouth. When it is necessary to clean the dust particles outside the bag 12, open the gas distribution box 16, and the gas distribution box 16 generates instantaneous high-speed gas, which is sprayed to the bag 12 through the spray pipe 15 to achieve the purpose of cleaning.

Claims

1. A deep spark removal integrated bag dust collector, characterized by: The invention comprises a steel support (1), wherein a horizontally arranged ring beam (7) is arranged on the top of the steel support (1); a middle box body (10) is arranged above the ring beam (7); a filter chamber is arranged on both the left and right sides of the middle box body (10); a gas chamber (18) is arranged between the two filter chambers; an ash hopper (4) is arranged below the middle box body (10); a uniform flow layer (19) is arranged between the filter chamber and the ash hopper (4); an upper box body (17) is arranged on the top of the middle box body (10); an ash cleaning mechanism is arranged in the upper box body (17); a gate valve (3) is arranged below the ash hopper (4); the gate valve (3) A star-shaped ash discharge valve (2) is provided below the ash hopper (4), and a plurality of baffles (5) are provided in the ash hopper (4); an air volume regulating valve (9) is provided at the outlet of the lower part of the gas chamber (18); a spark arrester (8) is provided below the air volume regulating valve (9), and the outlet of the spark arrester (8) is connected to an air inlet elbow (6); the outlet of the air inlet elbow (6) is connected to the upper part of an adjacent ash hopper (4), and the outlet of the air inlet elbow (6) is opposite to the area where the baffles (5) are provided; and the controlled ends of the ash cleaning mechanism, the star-shaped ash discharge valve (2), and the air volume regulating valve (9) are all connected to a PLC controller.

2. The deep spark removal integrated bag dust collector according to claim 1 is characterized by: The filter chamber comprises a bag cage (13), and a cloth bag (12) for dust removal is sleeved on the bag cage (13).

3. The deep spark removal integrated bag dust collector according to claim 2 is characterized in that: The dust cleaning mechanism comprises a blowing pipe (15) arranged horizontally above the bag opening of the cloth bag (12), the blowing pipe (15) being connected to an air distribution box (16) located above the upper box body (17); an offline valve (14) is arranged next to the air distribution box (16).

4. The deep spark removal integrated bag dust collector according to claim 1 is characterized in that: Inlet and outlet guide plates (11) are provided at the inlet and outlet of the gas chamber (18).

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