Flash tank cloth bag structure

Abstract

The utility model relates to the technical field of cloth bag dust removal, and particularly discloses a flash tank cloth bag structure which comprises a cloth bag dust remover body, a mounting plate is arranged in the cloth bag dust remover body and divides the interior of the cloth bag dust remover body into an upper cavity and a lower cavity, a plurality of filter bags are mounted on the mounting plate, each filter bag comprises an upper supporting cylinder and a lower bag body, and the upper supporting cylinders and the lower bag bodies are arranged in parallel. A first inlet allowing the upper supporting cylinder to enter the upper cavity is formed in the top end of the upper cavity, a second inlet allowing the lower bag body to enter the lower cavity is formed in the bottom end of the upper cavity, a plurality of openings are vertically formed in the side wall, located in the upper cavity, of the upper supporting cylinder, and the top end of the upper supporting cylinder extends out of the first inlet and is in a closed state. A sealing cover is connected to the first inlet and the second inlet, and a torsional spring is installed at the hinged position of the sealing cover. When the filter bags are replaced, the other filter bags which are not replaced can continue to work, the dust remover does not need to stop working, the filter bags can be taken out through the upper supporting cylinder, the flash tank can continue to work, and the working efficiency of the flash tank cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust removal, and particularly relates to a bag structure for a flash tank. Background Art

[0002] The flash tank is mainly used to provide a space for the rapid vaporization of fluids and the separation of vapor and liquid, and plays a key role in industries such as light industry, chemical industry, metallurgy, and building materials. A bag filter is used in the flash tank to treat the dust or gas generated during the flashing process.

[0003] A bag filter is a dry dust filtering device. Its filter bags are made of woven filter cloth or non-woven felt. The filtering effect of fiber fabrics is used to filter the dust-containing gas. When the dust-containing gas enters the bag filter, dust particles with large size and high specific gravity settle down due to the action of gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, and the gas is purified. The Chinese utility model patent with the publication number "CN218573086U" discloses a bag filter that can reduce the wear of filter bags, including a bag filter main body and an aggregate bin connected to each other. The interior of the bag filter main body is divided into an upper cavity and a lower cavity. Among them, a plurality of filter bags for filtering flue gas are installed in the lower cavity. The upper cavity and the lower cavity are connected through the filter bags. An air inlet is provided on the left side of the lower cavity, and the air inlet is connected with a gas guide pipe. The lower port of the gas guide pipe faces downward and is lower than the bottom of the filter bag. The gas guide pipe can play a role in buffering and guiding. After the flue gas containing dust enters the bag filter, its speed is reduced through the gas guide pipe, and it can enter the filter bag from the bottom of the filter bag to complete the filtration, avoiding the direct impact of larger and harder impurities in the flue gas on the filter bag after the flue gas enters the bag filter, causing wear to the filter bag, improving the service life of the equipment, and saving economic costs. However, after long-term use and frequent dust filtration, the fibers of the filter bag will gradually wear or break, thus affecting the dust removal effect. Therefore, the filter bag needs to be replaced regularly. Since the filter bag of this device is directly installed in the bag filter main body, when replacing the filter bag, the dust collector needs to stop working and the end cover needs to be opened to take out the filter bag. The stop of the dust collector means that the flash tank also has to stop working, affecting the working efficiency of the flash tank. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a bag structure for a flash tank to solve the problem that the dust collector needs to stop working when replacing the filter bag.

[0005] To solve the above problems, the following technical solutions are provided:

[0006] A bag structure for a flash tank, including the main body of a bag filter. Inside the main body of the bag filter, there is an installation plate which divides the interior of the main body of the bag filter into an upper cavity and a lower cavity. A plurality of filter bags are installed on the installation plate. The filter bag includes an upper support cylinder and a lower bag body. The upper support cylinder is communicated with the lower bag body. At the top of the upper cavity, there is a first inlet for the upper support cylinder to enter the upper cavity. At the bottom of the upper cavity, there is a second inlet for the lower bag body to enter the lower cavity. On the side wall of the upper support cylinder in the upper cavity, a number of openings are vertically provided. The top of the upper support cylinder extends outside the first inlet and is in a closed state. At the joints of the first inlet and the second inlet, there is a cover, and a torsion spring is installed at the hinge of the cover.

[0007] The basic principle of the above technical solution is as follows: The upper support cylinder carries the lower bag body and passes through the first inlet and the second inlet in sequence, and opens the covers at the first inlet and the second inlet, and sends the lower bag body into the lower cavity for flue gas filtration operation. When the filter bag needs to be replaced, the upper support cylinder is directly pulled out from the second inlet and the first inlet in sequence, and the lower bag body can be taken out from the lower cavity. When the upper support cylinder is separated from the second inlet and the first inlet, under the action of the torsion spring, the cover is restored to close the second inlet and the first inlet, preventing unfiltered flue gas from entering the upper cavity. At this time, the remaining un-replaced filter bags can continue to operate.

[0008] The beneficial effect of the above technical solution is as follows: Compared with the existing bag filter that needs to stop the operation of the dust collector and open the end cover to take out the filter bag when replacing the filter bag, when replacing the filter bag in this technical solution, the remaining un-replaced filter bags can continue to operate, the dust collector does not need to stop operating, and the filter bag can be taken out through the upper support cylinder, and the flash tank can also continue to operate, without affecting the working efficiency of the flash tank.

[0009] Preferred solution one: As a further optimization of the basic solution, the inner side of the first inlet is set to be smooth, and the inner side of the second inlet is provided with threads. The upper support cylinder can quickly carry the lower bag body through the first inlet and then screw into the second inlet, realizing the quick and sealed installation of the filter bag.

[0010] Preferred solution two: As a further optimization of the preferred solution one, the first inlet and the second inlet are relatively located on the same vertical line. The first inlet and the second inlet on the same vertical line are convenient for the upper support cylinder to quickly locate and enter.

[0011] Preferred solution three: As a further optimization of the preferred solution two, the top of the upper support cylinder is provided with a torsion disc, and the diameter of the torsion disc is larger than the diameter of the first inlet. By twisting the torsion disc, it is convenient to screw the upper support cylinder into the second inlet, and the diameter of the torsion disc being larger than the diameter of the first inlet can limit the torsion disc to always be outside the main body of the bag filter.

[0012] Optimal Solution Four: As a further optimization of Optimal Solution Three, four openings are vertically provided on the side wall of the upper support cylinder, and the four openings are respectively located on the left, right, front, and rear sides of the upper support cylinder. Providing four openings can reduce the weight of the upper support cylinder. At the same time, the flue gas filtered by the lower bag body enters the upper cavity through the openings and is discharged through the exhaust port on the side of the upper cavity.

[0013] Optimal Solution Five: As a further optimization of Optimal Solution Four, the lower bag body is fixedly sleeved at the bottom end of the upper support cylinder. When the bottom end of the upper support cylinder is screwed into the lower cavity, it means that the lower bag body also enters the lower cavity. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the bag structure of the flash evaporation tank of the present utility model.

[0015] The reference numerals in the attached drawings of the specification include: bag filter main body 1, mounting plate 2, upper cavity 3, lower cavity 4, upper support cylinder 5, lower bag body 6, first inlet 7, second inlet 8, opening 9, torsion disc 10, cover 11. Detailed Description of the Invention

[0016] The following is a more detailed description through specific embodiments:

[0017] The embodiment is basically as shown in the attached Figure 1 figures:

[0018] A bag structure for a flash evaporation tank, as shown in Figure 1 figures, includes a bag filter main body 1. Inside the bag filter main body 1, there is a mounting plate 2. The mounting plate 2 divides the inside of the bag filter main body 1 into an upper cavity 3 and a lower cavity 4. A plurality of filter bags are installed on the mounting plate 2. The filter bags include an upper support cylinder 5 and a lower bag body 6. The lower bag body 6 is fixedly sleeved at the bottom end of the upper support cylinder 5 so that the upper support cylinder 5 is communicated with the lower bag body 6. At the top end of the upper cavity 3, there is a first inlet 7 for the upper support cylinder 5 to enter the upper cavity 3. At the bottom end of the upper cavity 3, there is a second inlet 8 for the lower bag body 6 to enter the lower cavity 4. The first inlet 7 and the second inlet 8 are relatively located on the same vertical line. The inner side of the first inlet 7 is set to be smooth, and the inner side of the second inlet 8 is provided with threads. The upper support cylinder 5 carries the lower bag body 6 through the first inlet 7 and then screws into the second inlet 8 to send the lower bag body 6 into the lower cavity 4. On the side wall of the upper support cylinder 5 in the upper cavity 3, four openings 9 are vertically provided, and the four openings 9 are respectively located on the left, right, front, and rear sides of the upper support cylinder 5. The top end of the upper support cylinder 5 extends outside the first inlet 7 and is in a closed state. A torsion disc 10 is welded to the top end of the upper support cylinder 5. The diameter of the torsion disc 10 is larger than the diameter of the first inlet 7. A cover 11 is connected at the joints of the first inlet 7 and the second inlet 8, and a torsion spring is installed at the hinge of the cover 11.

[0019] The specific implementation process is as follows:

[0020] The upper support cylinder 5 carries the lower bag body 6 through the first inlet 7 and the second inlet 8 in sequence, and opens the covers 11 at the first inlet 7 and the second inlet 8, and sends the lower bag body 6 into the lower cavity 4 for flue gas filtration operation. When the filter bag needs to be replaced, the upper support cylinder 5 is directly withdrawn from the second inlet 8 and the first inlet 7 in sequence, and the lower bag body 6 can be taken out from the lower cavity 4. When the upper support cylinder 5 disengages from the second inlet 8 and the first inlet 7, under the action of the torsion spring, the cover 11 is restored to close the second inlet 8 and the first inlet 7, avoiding unfiltered flue gas from entering the upper cavity 3. At this time, the remaining un-replaced filter bags can continue to operate. The dust collector does not need to stop operating. By removing the upper support cylinder 5 from the upper cavity 3 through the torsion disc 10, the filter bag can be taken out from the lower cavity 4. After taking out, the cover 11 will close the second inlet 8 and the first inlet 7, and the flash evaporation tank can also continue to operate without affecting the working efficiency of the flash evaporation tank.

[0021] The above are only the embodiments of the present invention, and common knowledge such as the specific structures and characteristics known in the solutions is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A flash tank bag structure, including a bag dust collector body, characterized in that: A mounting plate is provided inside the main body of the bag dust collector, which divides the interior of the bag dust collector into an upper cavity and a lower cavity. A plurality of filter bags are installed on the mounting plate, and the filter bags include an upper support tube and a lower bag body. The upper support tube is connected to the lower bag body. A first inlet for the upper support tube to enter the upper cavity is provided at the top end of the upper cavity, and a second inlet for the lower bag body to enter the lower cavity is provided at the bottom end of the upper cavity. A plurality of openings are vertically provided on the side wall of the upper support tube in the upper cavity, and the top end of the upper support tube extends out of the first inlet and is in a closed state. A cover is hinged at the first inlet and the second inlet, and a torsion spring is installed at the hinge of the cover.

2. A flash tank bag structure according to claim 1, characterized in that: The inner side of the first inlet is set to be in a smooth state, and the inner side of the second inlet is provided with threads.

3. A flash tank bag structure according to claim 2, characterized in that: The first inlet and the second inlet are relatively located on the same vertical line.

4. A flash tank bag structure according to claim 3, characterized in that: A torsion disc is provided at the top end of the upper support cylinder, and the diameter of the torsion disc is greater than the diameter of the first inlet.

5. A flash tank bag structure according to claim 4, characterized in that: The side wall of the upper support tube is vertically provided with four openings, which are respectively located at the left, right, front and back sides of the upper support tube.

6. A flash tank bag structure according to claim 5, characterized in that: The lower bag body is fixedly sleeved on the bottom end of the upper supporting tube.

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