Waste gas treatment device for chemical processing

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for chemical processing. A filter screen is mounted in the middle of the waste gas conveying filter pipe, and closed grooves are formed in the tops, located on the two sides of the filter screen, of the waste gas conveying filter pipe in a penetrating manner; a filter screen flushing and cleaning structure is mounted in the middle of the waste gas conveying and filtering pipe; the waste gas conveying and filtering pipe is provided with a waste gas filtered matter discharging structure on one side of the filter screen flushing and cleaning structure; the filter screen flushing and cleaning structure comprises a drainage frame plate and a flushing frame plate which are movably positioned in the two closed grooves in a sealing manner respectively. The device can effectively remove large-particle dust in the waste gas of the chemicals through the filter screen, so that the primary purification of the waste gas is ensured. Meanwhile, the filter screen washing and cleaning structure adopts a high-pressure water source washing mode, so that the filter screen can be cleaned regularly, the blockage of the filter holes is avoided, and the durability of the filtering effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for chemical product processing. Background Art

[0002] Waste gas treatment mainly refers to the work of treating waste gas generated in industrial places, such as dust particles, flue gas, odorous gas, and toxic and harmful gas. In the process of chemical processing, the waste gas generated generally contains more types of pollutants, which can cause more serious pollution to the environment and also affect human health. At present, the Chinese utility model patent with a publication date of May 13, 2022 and a publication number of CN216498218U proposes a waste gas treatment device for chemical processing. The patent document includes a base, a treatment box, and a filter box. The treatment box is fixed on the top of the base, and the filter box is fixed on the top of the base. An air inlet pipe is provided on one side outer wall of the treatment box, and an exhaust pipe is provided on the top of the filter box. The treatment box and the filter box are connected by a pipeline. A partition is provided in the treatment box, a filter screen is provided on the partition, and a vibration mechanism is provided on one side outer wall of the partition. During operation, the exhaust gas enters the treatment box from the air intake pipe, is first filtered by the filter in the treatment box, and then enters the filter box. After filtering by the filter box, the gas is discharged through the exhaust pipe; and because the filter in the treatment box will filter out some large particles of impurities, the vibration mechanism is intermittently started, and the dust on the filter is shaken off by the vibration of the vibration mechanism, thereby reducing the occurrence of the filter being blocked by large particles of impurities or dust. A Chinese patent discloses a waste gas treatment device for chemical processing (authorization announcement number CN218944604U), the patented technology. This patented technology solves the problem that in the process of chemical production, the waste gas generated during the processing of some chemical products (for example, chemical products produced by the papermaking industry, printing and dyeing industry, pharmaceutical industry, agricultural and sideline industries, etc.) contains water vapor, and the waste gas at this time is relatively humid. Therefore, under the working condition that some chemical products are processed to produce humid waste gas, the impurities adhered to the filter net are likely to not be shaken off the filter net by the vibration mechanism, resulting in the problem that the filter net is still blocked by impurities or dust under humid waste gas conditions.

[0003] However, in the prior art, only impurities adhering to the surface of the filter can be cleaned off by a brush, and impurities in the filter holes of the filter cannot be cleaned. Therefore, the problem of cleaning the impurities in the filter holes needs to be solved.

[0004] Therefore, those skilled in the art provide a waste gas treatment device for chemical product processing to solve the problems raised in the above background technology. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides:

[0006] A waste gas treatment device for chemical product processing, comprising: a waste gas conveying filter pipe; a filter screen is installed in the middle of the waste gas conveying filter pipe, and closed grooves are opened on the tops of both sides of the filter screen; a filter screen flushing and cleaning structure is installed in the middle of the waste gas conveying filter pipe; the waste gas conveying filter pipe is equipped with a waste gas filter discharge structure on one side of the filter screen flushing and cleaning structure; the filter screen flushing and cleaning structure includes a drainage frame plate and a flushing frame plate which are respectively sealed and movably located in two closed grooves.

[0007] Preferably: the filter screen flushing and cleaning structure comprises a sealing vertical frame sealed and fixed on the surface of the exhaust gas conveying filter tube, the inner side wall of the sealing vertical frame is fixedly equipped with a positioning middle plate, and a screw is rotatably installed in the middle of the positioning middle plate.

[0008] Preferably: the top end of the screw rotates and passes through the top end of the sealing vertical frame, and is connected to a servo motor.

[0009] Preferably: the outer spiral transmission sleeve of the screw rod is provided with a positioning screw plate, a drainage frame plate is fixed to one side of the positioning screw plate, and a flushing frame plate is fixed to the other side of the positioning screw plate.

[0010] Preferably: a drainage telescopic pipe is installed through the top of the flushing frame plate, and a drainage pipe fitting is sealed at the top of the drainage telescopic pipe.

[0011] The drainage pipe is connected to an external wastewater collection tank.

[0012] Preferably: a water inlet telescopic tube is installed through the top of the flushing frame plate, a water inlet pipe fitting is sealed at the top of the water inlet telescopic tube, a booster pump is connected to the end of the water inlet pipe fitting away from the water inlet telescopic tube, and a pumping pipe is connected to the pumping end of the booster pump.

[0013] The water pumping pipe is connected to an external water source supply pipe.

[0014] Preferably: both ends of the exhaust gas conveying filter tube are integrally fixedly equipped with mounting flanges.

[0015] The waste gas conveying filter pipe is connected to the chemical product processing waste gas pipe at one end through a mounting flange, and is connected to the external waste gas treatment device at the other end through another mounting flange;

[0016] The outer walls of both ends of the exhaust gas conveying filter pipe are integrally fixed with mounting plates;

[0017] The exhaust filter material discharge structure includes a filter material waste box detachably mounted on the bottom of the mounting plate, a discharge pipe is connected to the bottom side of the filter material waste box, a transmission rod is rotatably installed inside the discharge pipe, one end of the transmission rod is sealed and rotatably penetrates the outer wall of the filter material waste box, and is connected to a servo motor 2;

[0018] The outer wall of the transmission rod is fixedly equipped with a discharge auger;

[0019] A sealing cover is hingedly installed at one end of the discharge pipe away from the filter waste box, and a locking bolt is rotatably installed at the bottom of the sealing cover. The sealing cover is spirally locked on the discharge pipe through the locking bolt.

[0020] A controller is installed on the frame surface of the second outer wall of the servo motor.

[0021] Technical effects and advantages of the utility model:

[0022] 1. The device can effectively remove large dust particles in chemical waste gas through the filter screen, ensuring the initial purification of the waste gas. At the same time, the filter screen flushing and cleaning structure adopts high-pressure water source flushing, which can regularly clean the filter screen, avoid clogging of the filter holes, and ensure the durability of the filtering effect.

[0023] 2. The introduction of servo motor 1 and servo motor 2 in the device makes the flushing of the filter screen and the discharge of waste materials automated, improves work efficiency and reduces the tediousness of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a waste gas treatment device for chemical product processing provided by the present application;

[0025] Figure 2 This is a schematic diagram of the disassembled structure of a waste gas treatment device for chemical product processing provided by the present application;

[0026] Figure 3 This is a schematic diagram of the structure of a waste gas conveying filter tube in a waste gas treatment device for chemical product processing provided by the present application;

[0027] Figure 4 This is a structural schematic diagram of a filter screen flushing and cleaning structure in a waste gas treatment device for chemical product processing provided by the present application;

[0028] Figure 5 It is a structural schematic diagram of a waste gas filter discharge structure in a waste gas treatment device for chemical product processing provided in the present application.

[0029] In the figure:

[0030] 1. Exhaust gas transmission filter tube;

[0031] 2. Filter flushing and cleaning structure; 201. Sealing vertical frame; 202. Positioning middle plate; 203. Screw; 204. Positioning screw plate; 205. Drainage frame plate; 206. Flush frame plate; 207. Servo motor 1; 208. Drainage telescopic pipe; 209. Drainage pipe fittings; 210. Water inlet telescopic pipe; 211. Water inlet pipe fittings; 212. Booster pump; 213. Pumping pipe;

[0032] 3. Exhaust filter material discharge structure; 301. Filter material waste box; 302. Discharge pipe; 303. Sealing cover; 304. Locking bolt; 305. Transmission rod; 306. Discharge auger; 307. Servo motor 2; 308. Controller;

[0033] 4. Filter screen; 5. Mounting flange; 6. Mounting plate; 7. Closed groove. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0035] For examples, see Figures 1 to 5 In this embodiment, a waste gas treatment device for chemical product processing is provided, comprising: a waste gas conveying filter pipe 1; a filter screen 4 is installed in the middle of the waste gas conveying filter pipe 1, and closed grooves 7 are opened through the tops of both sides of the waste gas conveying filter pipe 1 located on the filter screen 4; a filter screen flushing and cleaning structure 2 is installed in the middle of the waste gas conveying filter pipe 1; the waste gas conveying filter pipe 1 is equipped with a waste gas filter discharge structure 3 on one side of the filter screen flushing and cleaning structure 2;

[0036] The filter screen flushing and cleaning structure 2 includes a drainage frame plate 205 and a flushing frame plate 206 respectively and sealably positioned in two closed grooves 7; the filter screen flushing and cleaning structure 2 includes a sealing vertical frame 201 sealed and fixed on the surface of the exhaust gas conveying filter tube 1, and a positioning middle plate 202 is fixedly mounted on the inner side wall of the sealing vertical frame 201, and a screw 203 is rotatably mounted in the middle of the positioning middle plate 202;

[0037] The top end of the screw 203 rotates and penetrates the top end of the sealing vertical frame 201, and is connected to a servo motor 207; the outer spiral transmission sleeve of the screw 203 is provided with a positioning screw plate 204, a drainage frame plate 205 is fixed to one side of the positioning screw plate 204, and a flushing frame plate 206 is fixed to the other side of the positioning screw plate 204;

[0038] A drainage telescopic pipe 208 is installed through the top of the flushing frame 206, and a drainage pipe fitting 209 is sealed at the top of the drainage telescopic pipe 208; the drainage pipe fitting 209 is connected to an external wastewater collection box; a water inlet telescopic pipe 210 is installed through the top of the flushing frame 206, and a water inlet pipe fitting 211 is sealed at the top of the water inlet telescopic pipe 210, and a booster pump 212 is connected to the end of the water inlet pipe fitting 211 away from the water inlet telescopic pipe 210, and a pumping pipe 213 is connected to the pumping end of the booster pump 212;

[0039] The water pumping pipe 213 is connected to an external water supply pipe; both ends of the waste gas conveying filter pipe 1 are integrally fixedly equipped with mounting flanges 5; one end of the waste gas conveying filter pipe 1 is connected to the chemical product processing waste gas pipe through a mounting flange 5, and the other end is connected to the external waste gas treatment device through another mounting flange 5; the outer walls of both ends of the waste gas conveying filter pipe 1 are integrally fixedly provided with mounting plates 6;

[0040] The exhaust filter material discharge structure 3 includes a filter material waste box 301 detachably mounted on the bottom of the mounting plate 6, a discharge pipe 302 is connected to the bottom side of the filter material waste box 301, a transmission rod 305 is rotatably mounted inside the discharge pipe 302, one end of the transmission rod 305 is sealed and rotatably penetrates the outer wall of the filter material waste box 301, and is connected to a servo motor 2 307; a discharge auger 306 is fixedly mounted on the outer wall of the transmission rod 305;

[0041] A sealing cover 303 is hingedly installed at one end of the discharge pipe 302 away from the filter waste box 301, and a locking bolt 304 is rotatably installed at the bottom of the sealing cover 303. The sealing cover 303 is spirally locked on the discharge pipe 302 through the locking bolt 304; a controller 308 is installed on the frame surface of the outer wall of the servo motor 2 307.

[0042] According to the above embodiments, the working principle of the present invention is:

[0043] After the waste gas treatment device is connected with the chemical waste gas pipe through the waste gas transmission filter pipe 1;

[0044] The chemical waste gas passes through the filter screen 4 inside the waste gas conveying filter tube 1 to filter out larger particles of dust;

[0045] When a large amount of filter screen 4 remains inside the filter hole, the filter screen flushing and cleaning structure 2 is used for high-pressure water flushing;

[0046] When the filter screen flushing and cleaning structure 2 is flushed with high pressure, the servo motor 207 is started, and the servo motor 207 starts the spiral transmission of the positioning screw plate 204, so that the positioning screw plate 204 drives the drainage frame plate 205 and the flushing frame plate 206 to descend along the closed groove 7 to the inside of the exhaust gas conveying filter pipe 1, and the two sides of the filter screen 4 are sealed and docked respectively;

[0047] The booster pump 212 is started to pump water from the external source into the water inlet pipe 211 through the water pumping pipe 213. The water source passes through the water inlet telescopic pipe 210 under high pressure from the flushing frame plate 206 to flush the filter screen 4, and then is discharged into the drainage frame plate 205, and is discharged through the drainage telescopic pipe 208 and the drainage pipe 209 connected to the drainage frame plate 205, completing the high-pressure flushing of the filter screen 4, reducing the clogging of the filter screen 4 by the particles and dust in the exhaust gas;

[0048] The dust particles filtered by the filter screen 4 fall into the filter waste box 301. When cleaning the filter inside the filter waste box 301, ensure that the exhaust gas is stopped. The locking bolt 304 is opened by manual rotation. The locking bolt 304 removes the sealing cover 303 from the discharge pipe 302, and at the same time starts the servo motor 2 307. The servo motor 2 307 starts to drive the transmission rod 305. The transmission rod 305 drives the discharge auger 306 to rotate, so that the discharge auger 306 rotates inside the discharge pipe 302, and the filter inside the filter waste box 301 is discharged for centralized subsequent treatment.

[0049] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0050] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A waste gas treatment device for chemical product processing, characterized in that: include: An exhaust gas conveying filter pipe (1); a filter screen (4) is installed in the middle of the exhaust gas conveying filter pipe (1), and closed grooves (7) are provided through the tops of both sides of the filter screen (4) of the exhaust gas conveying filter pipe (1); A filter screen flushing and cleaning structure (2) is installed in the middle of the waste gas conveying filter pipe (1); The waste gas conveying filter pipe (1) is equipped with a waste gas filter material discharge structure (3) on one side of the filter screen flushing and cleaning structure (2); The filter screen flushing and cleaning structure (2) comprises a drainage frame plate (205) and a flushing frame plate (206) which are respectively and movably located in two closed grooves (7).

2. A waste gas treatment device for chemical product processing according to claim 1, characterized in that: The filter screen flushing and cleaning structure (2) comprises a sealing vertical frame (201) sealed and fixed on the surface of the waste gas conveying filter tube (1), a positioning middle plate (202) is fixedly mounted on the inner side wall of the sealing vertical frame (201), and a screw rod (203) is rotatably mounted in the middle of the positioning middle plate (202).

3. A waste gas treatment device for chemical product processing according to claim 2, characterized in that: The top end of the screw rod (203) rotates and penetrates the top end of the sealing vertical frame (201), and is connected to a servo motor 1 (207).

4. A waste gas treatment device for chemical product processing according to claim 3, characterized in that: The outer spiral transmission sleeve of the screw rod (203) is provided with a positioning screw plate (204), a drainage frame plate (205) is fixed on one side of the positioning screw plate (204), and a flushing frame plate (206) is fixed on the other side of the positioning screw plate (204).

5. The waste gas treatment device for chemical product processing according to claim 4, characterized in that: A drainage telescopic pipe (208) is installed through the top of the flushing frame plate (206), and a drainage pipe fitting (209) is sealed at the top of the drainage telescopic pipe (208).

6. The waste gas treatment device for chemical product processing according to claim 4, characterized in that: A water inlet telescopic pipe (210) is installed through the top of the flushing frame plate (206); a water inlet pipe fitting (211) is sealed at the top of the water inlet telescopic pipe (210); an end of the water inlet pipe fitting (211) away from the water inlet telescopic pipe (210) is connected to a booster pump (212); and a water pumping end of the booster pump (212) is connected to a water pumping pipe (213).

7. The waste gas treatment device for chemical product processing according to claim 1, characterized in that: Both ends of the waste gas conveying filter pipe (1) are integrally fixedly equipped with mounting flanges (5).

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