Novel dust removal device on top of dust storage bin of bag-type dust remover

Abstract

The utility model relates to the technical field of device dust removal, and discloses a novel dust removal device for the top of a dust storage bin of a bag-type dust collector, which comprises the dust storage bin, a 90-degree long-radius elbow and a vacuum release valve, the 90-degree long-radius elbow and the vacuum release valve are arranged at the top of the dust storage bin, and the dust storage bin is connected with the bag-type dust collector through the 90-degree long-radius elbow at the top of the dust storage bin. A dust storage bin of the device is connected to a raw gas chamber of a front-end bag-type dust collector through a 90-degree long-radius elbow, and the front-end bag-type dust collector is directly used for replacing a bin top dust collector to work, so that the investment cost and the maintenance cost are greatly saved. The dust storage bin of the device is connected to the raw gas chamber of the bag-type dust collector at the front end by using a 90-degree long-radius elbow, and the negative pressure of the raw gas chamber is directly used for replacing a bin top dust collector to work, so that the problem of dust raising at the top of the dust storage bin can be completely eradicated. The butterfly valve is arranged on the 90-degree long-radius elbow, the gas amount is controlled in the operation process of the device, and operation is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the field of dust removal devices, and particularly relates to a new type of dust removal device for the top of the ash storage bin of a bag filter. Background Art

[0002] The top dust collector is a part of the bag filter, and its main function is to deal with the dust problem at the top of the ash storage bin of the bag filter. The original top dust collector is a pulse bag dust collector, and its working principle is similar to that of the bag filter, which is completed by the dust cleaning method of pulse jet. The top dust collector can be used in various dust removal and purification equipment, and has always been used as an independent device at the top of the ash storage bin. Due to the gradual improvement of environmental protection requirements, now in many places, it is required that all the ends of dust removal equipment need to be used as monitoring points, including the top dust collector, to ensure the strict control of the dust removal effect. In reality, the operating conditions of each top dust removal are different. For relatively harsh environments, such as high temperature, high pressure, continuous production, etc., the top dust collector seems a bit inadequate. Therefore, many users communicate that such problems need to be completely solved.

[0003] The patent application with the publication number CN117046224A discloses a non-powered top dust collector for desulfurized slaked lime, including: a top dust collector body, which is arranged on the top of the desulfurized slaked lime bin; the top dust collector body is provided with a first chamber, and a dust inlet communicating with the first chamber is arranged at the bottom of the top dust collector body; an air outlet communicating with the first chamber is arranged at the top of the top dust collector body; a guiding part is arranged at the position of the dust inlet, and is used to be pushed to rotate under the action of the power generated by the airflow disturbance of the positive-pressure dust-containing gas rising in the desulfurized slaked lime bin, so as to introduce the dust-containing gas into the top dust collector body; a dust removal and separation part is arranged in the first chamber of the top dust collector body, and is used to process the dust-containing gas introduced by the guiding part and discharge it from the exhaust port.

[0004] When the existing dust collector needs to carry out continuous production operations in the ash storage bin, it will generate dust when the cloth bag is damaged and cannot be shut down and processed in time, and more supporting processes are required.

[0005] Therefore, a new technical solution is needed to solve the above technical problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a new type of dust removal device for the top of the ash storage bin of a bag filter, which directly uses the front-end bag filter to replace the top dust collector to work and solves the problem of deformation caused by too high negative pressure inside the ash storage bin.

[0007] The technical solution adopted by the utility model is:

[0008] New dust removal device for the top of the ash storage bin of a bag filter, including an ash storage bin, a 90° long-radius elbow, and a vacuum relief valve. The 90° long-radius elbow and the vacuum relief valve are arranged at the top of the ash storage bin, and the ash storage bin is connected to the bag filter through the 90° long-radius elbow at the top.

[0009] By adopting the above structure, through the 90° long-radius elbow, it is connected to the raw gas chamber of the front-end bag filter, and the front-end bag filter is directly used to replace the top-of-bin dust collector for operation.

[0010] Preferably, a bin cover is arranged at the top of the ash storage bin, and the 90° long-radius elbow and the vacuum relief valve are installed on the bin cover.

[0011] Preferably, the bottom of the 90° long-radius elbow is fixed to the bin cover by a steel plate, and a butterfly valve is provided above the bin cover on the 90° long-radius elbow.

[0012] By adopting the above structure, the 90° long-radius elbow is stably fixed on the bin cover, and a butterfly valve is provided, which is convenient for controlling the gas volume and makes the use more convenient.

[0013] Preferably, the bottom of the vacuum relief valve is a steel pipe, the steel pipe is fixed to the bin cover, and a plug valve is provided on the side wall of the steel pipe.

[0014] By adopting the above structure, a vacuum negative pressure valve is added to the top of the ash storage bin to solve the problem of deformation caused by excessive negative pressure inside the ash storage bin.

[0015] Preferably, the extended end of the 90° long-radius elbow extends to the raw gas chamber of the front-end bag filter.

[0016] Preferably, the extended section of the 90° long-radius elbow is installed in the raw gas chamber of the bag filter through a channel steel.

[0017] By adopting the above structure, the 90° long-radius elbow is stable in position in the raw gas chamber of the bag filter and is convenient for operation.

[0018] Preferably, a dust discharge port is arranged at the bottom of the ash storage bin, and a bracket is arranged on the side for fixation.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The ash storage bin of the device of the utility model is connected to the raw gas chamber of the front-end bag filter through a 90° long-radius elbow, and the front-end bag filter is directly used to replace the top-of-bin dust collector for operation, which greatly saves the investment cost and maintenance cost.

[0021] 2. The ash storage bin of the device of the utility model uses a 90° long-radius elbow to connect to the raw gas chamber of the front-end bag filter, and directly uses the negative pressure of the raw gas chamber to replace the top-of-bin dust collector for operation, which can prevent the dust flying problem at the top of the ash storage bin.

[0022] 3. A butterfly valve is provided on the 90° long-radius elbow of the device of the present utility model to control the gas volume during the operation of the device, making the operation more convenient. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the present utility model;

[0024] Figure 2 It is a top view structural diagram of the present utility model;

[0025] Figure 3 It is a position structural diagram of the ash storage bin and the bag filter of the present utility model;

[0026] Figure 4 It is a schematic diagram of the structural distribution on the bin cover of the present utility model.

[0027] Among them: 1. 90° long-radius elbow; 2. Steel pipe; 3. Butterfly valve; 4. Steel plate; 5. Vacuum relief valve; 6. Slide gate valve; 7. Steel pipe; 8. Ash storage bin; 9. Bag filter; 10. Waste gas chamber of the bag filter; 11. Bin cover; 12. Ash discharge port; 13. Support; 14. Channel steel. Detailed Implementation Modes

[0028] As Figures 1-4 shown, a new dust removal device on the top of the ash storage bin of the bag filter includes an ash storage bin 8, a 90° long-radius elbow 1, and a vacuum relief valve 5. A 90° long-radius elbow 1 and a vacuum relief valve 5 are arranged on the top of the ash storage bin 8. The ash storage bin 8 is connected to the bag filter 9 through the 90° long-radius elbow 1 at the top. An ash discharge port 12 is arranged at the bottom of the ash storage bin 8, and a support 13 is arranged on the side for fixation. The ash storage bin 8 is connected to the waste gas chamber 10 of the front-end bag filter through the 90° long-radius elbow 1, and directly uses the front-end bag filter 9 to replace the work of the top-of-bin dust collector, greatly saving the investment cost and maintenance cost.

[0029] A bin cover 11 is arranged on the top of the ash storage bin 8, and the 90° long-radius elbow 1 and the vacuum relief valve 5 are installed on the bin cover 11. The bottom of the 90° long-radius elbow 1 is fixed to the bin cover 11 through a steel plate 4, and a butterfly valve 3 is provided above the bin cover 11 on the 90° long-radius elbow 1. The bottom of the vacuum relief valve 5 is a steel pipe 7, and the steel pipe 7 is fixed to the bin cover 11, and a slide gate valve 6 is arranged on the side wall of the steel pipe 7. The extended end of the 90° long-radius elbow 1 extends to the waste gas chamber 10 of the front-end bag filter. The extended section of the 90° long-radius elbow 1 is installed in the waste gas chamber 10 of the bag filter through a channel steel 14. The ash storage bin uses the 90° long-radius elbow 1 to connect to the waste gas chamber 10 of the front-end bag filter, and directly uses the negative pressure of the waste gas chamber to replace the work of the top-of-bin dust collector, which can prevent the dust from flying at the top of the ash storage bin. A butterfly valve 3 is arranged on the 90° long-radius elbow 1 to control the gas volume during the operation of the device, making the operation more convenient.

[0030] The original dust collector on the top of the silo is a pulse bag dust collector. During operation, the ash discharged from the front bag dust removal enters the ash storage silo through the scraper conveyor and bucket elevator. The dust falls from the top of the ash silo into the ash hopper under the action of gravity. During this process, smoke and dust will fill the entire ash storage silo. The smoke and dust at the top enter the filter bag of the dust collector on the top of the silo, and the smoke and dust pass through the filter bag and are filtered into clean air, which is sucked and discharged into the air by the fan. The dust that cannot pass through the filter bag of the dust collector on the top of the silo finally accumulates on the outer surface of the filter bag and falls off the surface of the bag after being blown by the blowing system of the dust collector on the top of the silo, falling into the ash storage silo, so as to achieve the purpose of ash cleaning. For the ash storage silo in continuous production operation, when the cloth bag is damaged, it cannot be shut down in time for treatment, resulting in dust emission, and a relatively large number of supporting processes are required. The dust collector on the top of the silo can be used in various dust removal and purification equipment and has always acted as an independent equipment on the top of the ash storage silo. Due to the gradual improvement of environmental protection requirements, now in many places, it is required that all the ends of dust removal equipment need to be used as monitoring points, including the dust collector on the top of the silo, to ensure strict control of the dust removal effect. In reality, the operating conditions of each dust collector on the top of the silo are different. For relatively harsh environments, such as high temperature, high pressure, continuous production, etc., the dust collector on the top of the silo seems a bit inadequate.

[0031] This device cancels the dust collector on the top of the silo. At the position of the dust collector on the top of the silo on the top of the ash storage silo 8, a pipe is connected, that is, a 90° long-radius elbow 1, which is connected to the waste gas chamber 10 of the front bag dust collector. The front bag dust collector 9 is directly used to replace the work of the dust collector on the top of the silo, and the same effect can be achieved. Considering that the waste gas chamber of the front bag dust collector 9 is under negative pressure, a vacuum release valve 5 is added to the top of the ash storage silo 8 to solve the problem of excessive negative pressure inside the ash storage silo causing deformation, and a butterfly valve is added to control the gas volume. The improved dust removal method on the top of the ash storage silo completely cancels the original dust collector on the top of the silo and its supporting facilities, greatly saving the investment cost and maintenance cost, and this method can adapt to all working conditions, completely eliminating the problem of dust emission on the top of the ash storage silo. Among them, the investment cost is about 1 / 10 of the original, and the maintenance cost is almost zero.

[0032] The embodiments described above are only used to describe the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those skilled in the art to the technical solution of the present invention should be included in the protection scope determined by the claims of the present invention.

Claims

1. A new type of dust removal device on the top of the dust storage bin of the bag filter includes a dust storage bin, a 90° long radius elbow, and a vacuum release valve, which is characterized by: A 90° long radius elbow and a vacuum release valve are arranged on the top of the ash storage bin, and the ash storage bin is connected to the bag dust collector through the 90° long radius elbow on the top.

2. The novel dust removal device for the top of the dust storage bin of the bag dust collector according to claim 1 is characterized in that: A bin cover is arranged on the top of the ash storage bin, and the 90° long radius elbow and the vacuum release valve are installed on the bin cover.

3. The novel dust removal device on the top of the dust storage bin of the bag dust collector according to claim 2 is characterized in that: The bottom of the 90° long radius elbow is fixed on the bin cover through a steel plate, and a butterfly valve is arranged above the bin cover on the 90° long radius elbow.

4. The novel dust removal device for the top of the dust storage bin of the bag dust collector according to claim 2 is characterized in that: The bottom of the vacuum release valve is a steel pipe, which is fixed on the bin cover, and a plug valve is arranged on the side wall of the steel pipe.

5. The novel dust removal device on the top of the dust storage bin of the bag dust collector according to claim 3 is characterized in that: The 90° long radius elbow extension end extends to the waste gas chamber of the bag filter at the front end.

6. The novel dust removal device on the top of the dust storage bin of the bag dust collector according to claim 5 is characterized in that: The 90° long radius elbow extension section is installed in the waste gas chamber of the bag filter through channel steel.

7. The novel dust removal device for the top of the dust storage bin of the bag dust collector according to claim 1 is characterized in that: An ash discharge port is arranged at the bottom of the ash storage bin, and a bracket is arranged on the side for fixing.

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