Bag-type dust removal device with cooling structure for waste gas treatment

Abstract

The utility model discloses a bag-type dust collector with a cooling structure for waste gas treatment, which relates to the technical field of bag-type dust collectors and comprises a bag-type dust collector, a gas inlet of the bag-type dust collector is connected with a cooling box through a connecting pipeline, and the cooling box comprises a box body, a smoke inlet and a smoke outlet. The smoke inlet and the smoke outlet are fixed to the front end of the box body, the top of the smoke inlet is communicated with an inner cavity of the box body, the smoke outlet is connected with the connecting pipeline, a cooling assembly is arranged in the box body, and waste gas enters the box body through the smoke inlet and makes contact with the cooling assembly to achieve heat exchange and cooling. The cooling box and the cooling component are arranged, so that flue gas with overhigh temperature can be effectively prevented from directly entering the bag-type dust collector to damage a cloth bag in the bag-type dust collector, and the service life of the cloth bag of the bag-type dust collector 1 is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust removal devices, in particular to a bag dust removal device with a cooling structure for waste gas treatment. Background Art

[0002] The working mechanism of the bag dust removal equipment is that the dust-laden flue gas passes through the filter material and the dust particles are filtered out. The filter material captures coarse dust mainly by inertial collision, and captures fine dust mainly by diffusion and screening.

[0003] At present, the bag dust collectors on the market have high requirements for the flue gas when removing dust from high-temperature flue gas. Generally, the flue gas temperature is required to be less than 150℃. When the flue gas temperature is greater than 150℃, the bag and the bag will be burned, causing damage to the bag and reducing the service life of the bag. The bag needs to be replaced frequently, which increases the economic cost of the enterprise. Based on this, a bag dust collector with a cooling structure for exhaust gas treatment is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a bag dust removal device with a cooling structure for waste gas treatment in order to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bag dust removal device with a cooling structure for exhaust gas treatment, comprising a bag dust collector, wherein the air inlet of the bag dust collector is connected to a cooling box via a connecting pipe, the cooling box comprising a box body, a smoke inlet, and a smoke outlet, the smoke inlet and the smoke outlet being respectively fixed to the front end of the box body and the top of the smoke inlet and being in communication with the inner cavity of the box body, the smoke outlet being connected to the connecting pipe, a cooling component being provided inside the box body, and the exhaust gas entering the interior of the box body through the smoke inlet and contacting with the cooling component to achieve heat exchange and cooling;

[0006] The cooling assembly includes an outer water tank, a side convex heat exchange shell, a sealing back plate, and a separator;

[0007] The outer water tank is fixed to the rear end of the box body, the side convex heat exchange shell is installed on the inner side of the outer water tank and penetrates the inner side of the box body, the blocking back plate is fixed to the rear end of the outer water tank by bolts, and the dividing plate is fixed to the front end of the blocking back plate and inserted into the inner side of the side convex heat exchange shell, which is used to divide the interior of the side convex heat exchange shell into a "U"-shaped channel for providing a flow channel for cooling water;

[0008] The flue gas entering the interior of the box body contacts the side convex heat exchange shell, and realizes heat exchange and cooling with the cooling water flowing inside the side convex heat exchange shell.

[0009] As a further solution of the present invention: the cooling component further includes a water inlet pipe, a diversion pipe, a water outlet pipe, and a confluence pipe;

[0010] The water inlet pipe is distributed below the outer water tank, the diversion pipe is fixed at the top of the water inlet pipe and passes through the bottom of the inner side of the box body, and is used to transport cooling water to the inside of the outer water tank. The water outlet pipe is distributed above the outer water tank, the confluence pipe is fixed at the bottom of the water inlet pipe and passes through the top of the inner side of the box body, and is used to transport the water after heat exchange.

[0011] As a further solution of the present invention: a plurality of the side convex heat exchange shells and separators are arranged in the horizontal direction, a plurality of the diverter pipes and converging pipes are arranged in the horizontal direction and are staggered with each other, and adjacent diverter pipes and converging pipes are distributed on both sides of the separator.

[0012] As a further solution of the present invention: a buffer plate is fixed to the top of the inner wall of the box body, the smoke inlet and the side convex heat exchange shell are distributed at the front and rear ends of the buffer plate, and one end of the side convex heat exchange shell is attached to the end surface of the buffer plate.

[0013] As a further solution of the present invention: a vertical groove for installing a side convex heat exchange shell is opened at the rear end of the box body, and seals are evenly provided at the contact position between the side convex heat exchange shell and the vertical groove and at the connection between the sealing back plate and the outer water tank.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By providing a cooling box and a cooling component, it is possible to effectively prevent the flue gas with excessively high temperature from directly entering the bag collector and causing damage to the bags inside the bag collector, thereby further improving the service life of the bags of the bag collector 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural distribution diagram of the cooling box and cooling components of the utility model;

[0018] Figure 3 This is a cross-sectional view of the internal structure of the cooling box of the present invention;

[0019] Figure 4 This is a cross-sectional exploded view of the cooling box of the present invention;

[0020] Figure 5 This is a top sectional view of the cooling box and cooling assembly of the present invention.

[0021] In the figure: 1. Bag collector; 2. Connecting pipes; 3. Cooling box; 301. Box body; 302. Smoke inlet; 303. Smoke outlet; 304. Buffer plate; 4. Cooling assembly; 401. External water tank; 402. Side convex heat exchange shell; 403. Sealing back plate; 404. Separator; 405. Water inlet pipe; 406. Diverter pipe; 407. Water outlet pipe; 408. Converging pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 5 In an embodiment of the present invention, a bag-type dust removal device with a cooling structure for exhaust gas treatment includes a bag-type dust collector 1. The air inlet of the bag-type dust collector 1 is connected to a cooling box 3 through a connecting pipe 2. The cooling box 3 includes a box body 301, a smoke inlet 302, and a smoke outlet 303. The smoke inlet 302 and the smoke outlet 303 are respectively fixed to the front end of the box body 301 and the top of the smoke inlet 302 and are communicated with the inner cavity of the box body 301. The smoke outlet 303 is connected to the connecting pipe 2. A cooling component 4 is provided inside the box body 301. The exhaust gas enters the interior of the box body 301 through the smoke inlet 302 and contacts the cooling component 4 to achieve heat exchange and cooling.

[0024] The cooling assembly 4 includes an outer water tank 401, a convex heat exchange shell 402, a blocking back plate 403, a separator 404, a water inlet pipe 405, a diversion pipe 406, a water outlet pipe 407, and a confluence pipe 408;

[0025] The outer water tank 401 is fixed to the rear end of the box body 301, the convex heat exchange shell 402 is installed on the inner side of the outer water tank 401 and penetrates the inner side of the box body 301, the blocking back plate 403 is fixed to the rear end of the outer water tank 401 by bolts, and the separator 404 is fixed to the front end of the blocking back plate 403 and inserted into the inner side of the convex heat exchange shell 402, which is used to divide the interior of the convex heat exchange shell 402 into a "U"-shaped channel for providing a flow channel for cooling water;

[0026] The flue gas entering the box body 301 contacts the side convex heat exchange shell 402 and exchanges heat with the cooling water flowing inside the side convex heat exchange shell 402 to achieve cooling;

[0027] The water inlet pipe 405 is located below the outer water tank 401. The diverter pipe 406 is fixed to the top of the water inlet pipe 405 and penetrates to the bottom of the inner side of the tank body 301, and is used to transport cooling water into the outer water tank 401. The water outlet pipe 407 is located above the outer water tank 401. The confluence pipe 408 is fixed to the bottom of the water inlet pipe 405 and penetrates to the top of the inner side of the tank body 301, and is used to transport the water after heat exchange.

[0028] Several lateral convex heat exchange shells 402 and separators 404 are arranged horizontally, and multiple diverter pipes 406 and converging pipes 408 are arranged horizontally and staggered with each other, and adjacent diverter pipes 406 and converging pipes 408 are distributed on both sides of the separator 404.

[0029] In this embodiment, it should be noted that when the bag dust removal device is in use, the smoke delivery pipe is connected to the smoke inlet 302, and the water inlet pipe 406 and the water outlet pipe 407 are connected to the output and input ends of the external cooling water circulation system respectively.

[0030] When the high-temperature flue gas enters the interior of the box body 301 through the flue gas conveying pipe and the smoke inlet 302, it will be transported upward along the gap channels between the multiple side-convex heat exchange shells 402 to the smoke outlet 303;

[0031] During this process, the external cooling water flows into the outer water tank 401 through the water inlet pipe 406 and the diverter pipe 406, and then enters the convex heat exchange shell 402. After that, the external cooling water flows back to the outer water tank 401 through the gap between the front end of the convex heat exchange shell 402 and the partition 404, and then enters the water outlet pipe 407 through the confluence pipe 408, and is transported to the input end of the external cooling water circulation system, thereby realizing the circulation of the cooling water. The cooling water flowing inside the convex heat exchange shell 402 can exchange heat with the flue gas inside the box body 301, so that the flue gas temperature drops. The cooled flue gas is transported to the inside of the bag filter 1 through the smoke outlet 303 and the connecting pipe 2 for dust removal operation (it should be noted that the main working principle of the bag filter 1 is to filter out dust particles in the flue gas through the bag, which has been widely used in the field of waste gas treatment. Therefore, its internal structure and operating principle will not be elaborated here).

[0032] The arrangement of the cooling box 3 and the cooling assembly 4 can effectively prevent the flue gas with too high a temperature from directly entering the bag-type dust collector 1 and causing damage to the bags inside the bag-type dust collector 1, thereby further improving the service life of the bags of the bag-type dust collector 1.

[0033] Please refer to Figures 3-4A buffer plate 304 is fixed to the top of the inner wall of the box body 301, the smoke inlet 302 and the side convex heat exchange shell 402 are distributed at the front and rear ends of the buffer plate 304, and one end of the side convex heat exchange shell 402 is attached to the end surface of the buffer plate 304.

[0034] In this embodiment, the buffer plate 304 can buffer and intercept the smoke entering from the smoke inlet 302 to prevent the smoke from directly impacting the convex heat exchange shell 402 .

[0035] Please refer to Figures 1 to 4 The rear end of the box body 301 is provided with a vertical groove for installing the side convex heat exchange shell 402, and seals are evenly provided at the contact position between the side convex heat exchange shell 402 and the vertical groove and at the connection between the sealing back plate 403 and the outer water tank 401.

[0036] In this embodiment, after the cooling assembly 4 has been used for a period of time, solid impurities will inevitably adhere to the surface of the convex heat exchange shell 402, which can be cleaned regularly. In this case, it is only necessary to disassemble the blocking back plate 403, remove the blocking back plate 403 and the separator 404 as a whole, and then disassemble and clean the multiple convex heat exchange shells 402 in turn (it should be noted that the convex heat exchange shell 402 can be fixed to the box body 301 by screws);

[0037] In addition, the box body 301 is provided with a dust discharge port, which can regularly discharge and clean the dust inside the box body 301.

[0038] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bag dust removal device with a cooling structure for waste gas treatment, comprising a bag dust collector (1), characterized in that: The air inlet of the bag filter (1) is connected to a cooling box (3) via a connecting pipe (2); the cooling box (3) comprises a box body (301), a smoke inlet (302), and a smoke outlet (303); the smoke inlet (302) and the smoke outlet (303) are respectively fixed to the front end of the box body (301) and the top of the smoke inlet (302) and are in communication with the inner cavity of the box body (301); the smoke outlet (303) is connected to the connecting pipe (2); a cooling component (4) is provided inside the box body (301); the exhaust gas enters the box body (301) through the smoke inlet (302) and contacts the cooling component (4) to achieve heat exchange and cooling; The cooling component (4) comprises an outer water tank (401), a side convex heat exchange shell (402), a sealing back plate (403), and a separator (404); The outer water tank (401) is fixed to the rear end of the box body (301), the lateral convex heat exchange shell (402) is installed on the inner side of the outer water tank (401) and penetrates the inner side of the box body (301), the blocking back plate (403) is fixed to the rear end of the outer water tank (401) by bolts, and the partition (404) is fixed to the front end of the blocking back plate (403) and inserted into the inner side of the lateral convex heat exchange shell (402), and is used to separate the interior of the lateral convex heat exchange shell (402) into a "U"-shaped channel, which is used to provide a flow channel for cooling water; The flue gas entering the interior of the box body (301) contacts the side convex heat exchange shell (402) and achieves heat exchange and cooling with the cooling water flowing inside the side convex heat exchange shell (402).

2. The bag dust removal device with a cooling structure for waste gas treatment according to claim 1, characterized in that: The cooling assembly (4) further includes a water inlet pipe (405), a diversion pipe (406), a water outlet pipe (407), and a confluence pipe (408); The water inlet pipe (405) is distributed below the outer water tank (401), the diversion pipe (406) is fixed to the top of the water inlet pipe (405) and penetrates to the bottom of the inner side of the box body (301), and is used to transport cooling water to the inner side of the outer water tank (401); the water outlet pipe (407) is distributed above the outer water tank (401), and the confluence pipe (408) is fixed to the bottom of the water inlet pipe (405) and penetrates to the top of the inner side of the box body (301), and is used to transport the water after heat exchange.

3. The bag dust removal device with a cooling structure for waste gas treatment according to claim 2, characterized in that: The side convex heat exchange shell (402) and the separator (404) are arranged in a plurality in the horizontal direction, and the diverter pipes (406) and the converging pipes (408) are arranged in a plurality in the horizontal direction and are staggered with each other, and the adjacent diverter pipes (406) and the converging pipes (408) are distributed on both sides of the separator (404).

4. The bag dust removal device with a cooling structure for waste gas treatment according to claim 1, characterized in that: A buffer plate (304) is fixed to the top of the inner wall of the box body (301), the smoke inlet (302) and the side convex heat exchange shell (402) are distributed at the front and rear ends of the buffer plate (304), and one end of the side convex heat exchange shell (402) is attached to the end surface of the buffer plate (304).

5. The bag dust removal device with a cooling structure for waste gas treatment according to claim 2, characterized in that: A vertical groove for installing a convex heat exchange shell (402) is provided at the rear end of the box body (301), and seals are evenly provided at the contact position between the convex heat exchange shell (402) and the vertical groove and at the connection between the sealing back plate (403) and the outer water box (401).

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