Waste gas treatment equipment for acrylic emulsion production

Abstract

The utility model discloses waste gas treatment equipment for acrylic emulsion production, relates to the field of waste gas treatment equipment, and aims to solve the problems that in the prior art, waste gas generated in acrylic emulsion production is combusted by adopting a combustion chamber and then is directly discharged, but some smoke is generated in the combustion process; and air pollution can be caused by direct emission. The lower end of one side of the combustion tower is fixedly connected with a gas inlet guide pipe, the lower end in the combustion tower is fixedly connected with a conical gas collecting hopper in an inverted mode, the middle of the upper end of the conical gas collecting hopper is fixedly connected with a gas outlet pipe, and one side of the upper end of the gas outlet pipe is fixedly connected with an ignition gun on the inner end face of the combustion tower. The upper end of the other side of the combustion tower is connected with a smoke filtering device, a filter screen is arranged in the middle of the end face of one side in the smoke filtering device, the lower end of the smoke filtering device is connected with a detachable dust collecting box, and one side of the smoke filtering device is connected with a tail gas treatment box.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment equipment, specifically a waste gas treatment device for acrylic emulsion production. Background Technology

[0002] Acrylic acid is an important organic chemical raw material widely used in plastics, coatings, and synthetic fibers. However, the production process of acrylic acid generates a large amount of waste gas containing harmful substances such as formaldehyde, benzene, and toluene, which seriously affects the environment and human health. Therefore, the effective treatment of acrylic acid waste gas is of significant practical importance and environmental value. Acrylic acid waste gas mainly originates from the production process of acrylic acid and its esters. These production processes involve multiple steps, each of which may generate waste gas containing harmful substances. The main components of the waste gas include formaldehyde, benzene, and toluene, which are volatile and easily diffuse into the atmosphere, causing environmental pollution.

[0003] For example, patent announcement number CN 211987979 U discloses a waste gas treatment device for acrylic emulsion production, including a reaction tank and a base. A liquid outlet is connected to the lower left side of the reaction tank, and a valve is connected to the other end of the liquid outlet. An air inlet is connected above the liquid outlet, and a gas guide pipe is connected to the other end of the air inlet. A reaction tank is located below the gas guide pipe, and a sealing plug is connected above the liquid inlet. An exhaust fan is located above the reaction tank, and an L-shaped duct is connected to the top of the exhaust fan, with the other end of the L-shaped duct connected to a combustion chamber. This waste gas treatment device for acrylic emulsion production employs a dual treatment method of a reaction tank and a combustion chamber to effectively remove harmful gases. Simultaneously, the harmful gases passing through the combustion chamber are decomposed into water and carbon dioxide under the action of a catalyst, achieving resource reuse. The base and casters facilitate convenient transportation and reduce the workload of workers.

[0004] The above-mentioned technology uses a combustion chamber to treat the waste gas from acrylic emulsion production by combustion before direct emission. However, some smoke is generated during the combustion process, and direct emission still pollutes the air. Therefore, the market urgently needs to develop a waste gas treatment device for acrylic emulsion production to help people solve the existing problems. Utility Model Content

[0005] The purpose of this invention is to provide a waste gas treatment device for acrylic emulsion production, in order to solve the problem mentioned in the background art of using a combustion chamber to treat the waste gas from acrylic emulsion production by combustion and then directly discharging it, but the combustion process will produce some smoke, and direct discharge will still cause air pollution.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste gas treatment device for acrylic emulsion production, comprising a combustion tower, an air inlet pipe fixedly connected to the lower end of one side of the combustion tower, a conical gas collecting hopper fixedly connected invertedly inside the lower end of the combustion tower, an air outlet pipe fixedly connected to the middle of the upper end of the conical gas collecting hopper, an ignition gun fixedly connected to one side of the upper end of the air outlet pipe and to the inner end face of the combustion tower, a flue gas filter device connected to the upper end of the other side of the combustion tower, a filter screen provided in the middle of one end face of the inside of the flue gas filter device, a detachable dust collection box connected to the lower end of the flue gas filter device, and a tail gas treatment box connected to one side of the flue gas filter device.

[0007] Preferably, the upper end of one side of the combustion tower is connected to the end face of one side of the flue gas filter through a first connecting pipe to achieve internal communication, and a hatch is provided at the lower end of the front end of the combustion tower.

[0008] Preferably, a rotating shaft is rotatably connected to the middle of one side of the filter screen, and multiple scraper rods are fixedly connected to the rotating shaft in a circular array.

[0009] Preferably, a transmission box is fixedly installed in the middle of the flue gas filtration device, one end of the rotating shaft extends into the transmission box and is fixedly connected to a first conical tooth, and a fixing pipe is fixedly connected between the upper end of the transmission box and the upper end surface inside the flue gas filtration device.

[0010] Preferably, a drive shaft is rotatably connected inside the fixed tube, and the lower end of the drive shaft extends into the transmission box and is fixedly connected to a second conical tooth, the second conical tooth meshing with the tooth portion of the first conical tooth.

[0011] Preferably, a drive device is fixedly connected to the upper end of the flue gas filtration device, a motor is fixedly installed inside the drive device, and the upper end of the transmission shaft extends into the drive device and is fixedly connected to the output shaft of the motor.

[0012] Preferably, one end face of the flue gas filtration device is connected to the lower end of the exhaust gas treatment box via an L-shaped vent pipe on the outside of the filter screen, an exhaust pipe is fixedly installed at the upper end of one end face of the exhaust gas treatment box, and exhaust gas treatment liquid is injected into the exhaust gas treatment box.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, through the setting of a flue gas filtration device and an exhaust gas treatment box, the first connecting pipe introduces the flue gas after combustion into the flue gas filtration device. One side end face of the flue gas filtration device is connected to the lower end of the exhaust gas treatment box via an L-shaped vent pipe on the outside of the filter screen. An exhaust pipe is fixedly installed at the upper end of one side end face of the exhaust gas treatment box. The exhaust gas treatment box is filled with exhaust gas treatment liquid (e.g., water, alkaline solution). The flue gas is filtered through the filter screen on one side end face of the flue gas filtration device and then sent into the exhaust gas treatment box. The flue gas filtered by the flue gas filtration device is sent into the exhaust gas treatment liquid through the L-shaped vent pipe, so that the exhaust gas treatment liquid absorbs the particulate matter and impurities generated by combustion in the flue gas, and the combustion exhaust gas is fully treated before being discharged.

[0015] 2. In this utility model, the motor drives the transmission shaft to rotate through the setting of the scraper, which in turn drives the rotating shaft to rotate. The rotating shaft drives the scraper to continuously scrape one side of the filter screen to prevent particulate matter from clogging the filter screen. The particulate matter scraped by the scraper falls into the detachable dust collection box for collection due to gravity and the scraper in the flue gas filtration device.

[0016] 3. In this utility model, by setting up a conical gas collecting hopper, a conical gas collecting hopper is fixedly connected to the lower end of the combustion tower inverted. An outlet pipe is fixedly connected to the middle of the upper end of the conical gas collecting hopper. The waste gas is collected by the conical gas collecting hopper, which facilitates the ignition gun to ignite and concentrate the combustion. At the same time, as the waste gas is guided upward by the conical gas collecting hopper, the particulate matter in the waste gas falls to the lower end of the combustion tower by gravity for collection, thereby achieving the initial separation of particulate matter in the waste gas. Attached Figure Description

[0017] Figure 1 This is a front view of a waste gas treatment device for acrylic emulsion production according to the present invention.

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a side sectional view of the flue gas filtration device of this utility model;

[0020] Figure 4 This is a detailed enlarged view of part A of this utility model.

[0021] In the diagram: 1. Combustion tower; 101. Inlet duct; 102. Conical gas collection hopper; 103. Outlet pipe; 104. Ignition gun; 105. Door; 2. Flue gas filtration device; 201. First connecting pipe; 202. Detachable dust collection box; 203. Filter screen; 204. Rotating shaft; 205. Scraper; 206. First conical tooth; 3. Transmission box; 301. Fixed pipe; 302. Transmission shaft; 303. Second conical tooth; 4. Drive device; 401. Motor; 5. Exhaust gas treatment box; 501. L-shaped vent pipe; 502. Exhaust pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 This utility model provides an embodiment of a waste gas treatment device for acrylic emulsion production, comprising a combustion tower 1. An inlet duct 101 is fixedly connected to the lower end of one side of the combustion tower 1. A conical gas collecting hopper 102 is fixedly connected invertedly to the lower end of the interior of the combustion tower 1. An outlet pipe 103 is fixedly connected to the middle of the upper end of the conical gas collecting hopper 102. An ignition gun 104 is fixedly connected to one side of the upper end of the outlet pipe 103 and to the inner end face of the combustion tower 1. A flue gas filter 2 is connected to the upper end of the other side of the combustion tower 1. A filter screen 203 is provided in the middle of one end face of the inside of the flue gas filter 2. A removable... The detachable dust collection box 202 has a tail gas treatment box 5 connected to one side of the flue gas filter device 2. The waste gas generated during the acrylic acid production process is collected through an external gas collection hood and pipeline system, and then transported to the lower end of the combustion tower 1 through the inlet pipe 101. The waste gas is guided upward through the conical gas collection bucket 102 and flows upward through the outlet pipe 103 into the upper end of the combustion tower 1. It is then ignited by the ignition gun 104 for combustion. During the upward flow of the waste gas through the conical gas collection bucket 102, the particulate matter in the waste gas falls to the lower end of the combustion tower 1 by gravity for collection, thus achieving the initial separation of particulate matter in the waste gas.

[0024] Furthermore, the upper end of one side of the combustion tower 1 is connected to the end face of one side of the flue gas filter device 2 through the first connecting pipe 201, and the internal communication is achieved. The lower end of the front end of the combustion tower 1 is provided with a door 105. By opening the door 105, the particulate matter separated at the lower end of the combustion tower 1 can be cleaned. The flue gas after combustion is introduced into the flue gas filter device 2 through the first connecting pipe 201.

[0025] Furthermore, one end face of the flue gas filter 2 is connected to the lower end of the exhaust gas treatment box 5 via an L-shaped vent pipe 501 on the outside of the filter screen 203. An exhaust pipe 502 is fixedly installed at the upper end of one end face of the exhaust gas treatment box 5. The exhaust gas treatment box 5 is filled with exhaust gas treatment liquid (e.g., water, alkaline solution). After the flue gas is filtered by the filter screen 203 on one end face of the flue gas filter 2, it is sent into the exhaust gas treatment box 5. The flue gas filtered by the flue gas filter 2 is sent into the exhaust gas treatment liquid through the L-shaped vent pipe 501, so that the exhaust gas treatment liquid absorbs the particulate matter and impurities generated by the combustion of the flue gas, and the combustion exhaust gas is fully treated before being discharged.

[0026] Furthermore, a rotating shaft 204 is rotatably connected to the middle of one side of the filter screen 203, and multiple scraper rods 205 are fixedly connected to the rotating shaft 204 in a ring array.

[0027] Furthermore, a transmission box 3 is fixedly installed in the middle of the flue gas filter device 2. One end of the rotating shaft 204 extends into the transmission box 3 and is fixedly connected to the first conical tooth 206. A fixed pipe 301 is fixedly connected between the upper end of the transmission box 3 and the upper end face of the flue gas filter device 2.

[0028] Furthermore, a drive shaft 302 is rotatably connected inside the fixed tube 301. The lower end of the drive shaft 302 extends into the transmission box 3 and is fixedly connected to a second conical tooth 303. The second conical tooth 303 meshes with the tooth portion of the first conical tooth 206.

[0029] Furthermore, a drive device 4 is fixedly connected to the upper end of the flue gas filtration device 2. A motor 401 is fixedly installed inside the drive device 4. The upper end of the transmission shaft 302 extends into the drive device 4 and is fixedly connected to the output shaft of the motor 401. The motor 401 drives the transmission shaft 302 to rotate, which in turn drives the rotating shaft 204 to rotate. The rotating shaft 204 drives the scraper 205 to continuously scrape one end face of the filter screen 203 to prevent particulate matter from clogging the filter screen 203. The particulate matter scraped by gravity and the scraper 205 in the flue gas filtration device 2 falls into the detachable dust collection box 202 for collection.

[0030] Working Principle: During operation, the waste gas generated during acrylic acid production is collected centrally through an external gas collection hood and piping system. It is then transported to the lower end of the combustion tower 1 via the inlet pipe 101. The waste gas is guided upwards by the conical gas collection hopper 102 and flows upwards through the outlet pipe 103, entering the upper end of the combustion tower 1. It is then ignited by the ignition gun 104. As the waste gas rises through the conical gas collection hopper 102, particulate matter in the waste gas falls to the lower end of the combustion tower 1 by gravity for collection, achieving preliminary separation of particulate matter. A hatch 105 is located at the lower front end of the combustion tower 1. Opening the hatch 105 allows for the cleaning of the separated particulate matter at the lower end of the combustion tower 1. This is achieved through the first connection... Pipe 201 introduces the flue gas after combustion into the flue gas filter device 2. One end face of the flue gas filter device 2 is connected to the lower end of the exhaust gas treatment box 5 via an L-shaped vent pipe 501 on the outside of the filter screen 203. An exhaust pipe 502 is fixedly installed at the upper end of one end face of the exhaust gas treatment box 5. The exhaust gas treatment box 5 is filled with exhaust gas treatment liquid (e.g., water, alkaline solution). After the flue gas is filtered by the filter screen 203 on one end face of the flue gas filter device 2, it is sent into the exhaust gas treatment box 5. The flue gas filtered by the flue gas filter device 2 is sent into the exhaust gas treatment liquid through the L-shaped vent pipe 501, so that the exhaust gas treatment liquid absorbs the particulate matter and impurities generated by combustion in the flue gas, and the combustion exhaust gas is fully treated before being discharged.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A waste gas treatment device for acrylic emulsion production, comprising a combustion tower (1), characterized in that: An air inlet duct (101) is fixedly connected to the lower end of one side of the combustion tower (1). A conical gas collecting hopper (102) is fixedly connected to the lower end of the combustion tower (1) inverted. An outlet pipe (103) is fixedly connected to the middle of the upper end of the conical gas collecting hopper (102). An ignition gun (104) is fixedly connected to one side of the upper end of the outlet pipe (103) and to the inner end face of the combustion tower (1). A flue gas filter device (2) is connected to the upper end of the other side of the combustion tower (1). A filter screen (203) is provided in the middle of one end face of the flue gas filter device (2). A detachable dust collection box (202) is connected to the lower end of the flue gas filter device (2). A tail gas treatment box (5) is connected to one side of the flue gas filter device (2).

2. The waste gas treatment equipment for acrylic emulsion production according to claim 1, characterized in that: The upper end of one side of the combustion tower (1) is connected to the end face of one side of the flue gas filter device (2) through a first connecting pipe (201) to achieve internal communication. The lower end of the front end of the combustion tower (1) is provided with a hatch (105).

3. The waste gas treatment equipment for acrylic emulsion production according to claim 1, characterized in that: The filter screen (203) is rotatably connected to a rotating shaft (204) in the middle of one side, and multiple scraper rods (205) are fixedly connected in a ring array on the rotating shaft (204).

4. The waste gas treatment equipment for acrylic emulsion production according to claim 3, characterized in that: A transmission box (3) is fixedly installed in the middle of the flue gas filter device (2). One end of the rotating shaft (204) extends into the transmission box (3) and is fixedly connected to a first conical tooth (206). A fixed pipe (301) is fixedly connected between the upper end of the transmission box (3) and the upper end face of the flue gas filter device (2).

5. The waste gas treatment equipment for acrylic emulsion production according to claim 4, characterized in that: The fixed tube (301) is rotatably connected to a drive shaft (302). The lower end of the drive shaft (302) extends into the transmission box (3) and is fixedly connected to a second conical tooth (303). The second conical tooth (303) meshes with the teeth of the first conical tooth (206).

6. The waste gas treatment equipment for acrylic emulsion production according to claim 5, characterized in that: The upper end of the flue gas filtration device (2) is fixedly connected to a drive device (4), and a motor (401) is fixedly installed inside the drive device (4). The upper end of the transmission shaft (302) extends into the drive device (4) and is fixedly connected to the output shaft of the motor (401).

7. The waste gas treatment equipment for acrylic emulsion production according to claim 1, characterized in that: The flue gas filtration device (2) is connected to the lower end of the exhaust gas treatment box (5) via an L-shaped vent pipe (501) on one side end face and outside the filter screen (203). An exhaust pipe (502) is fixedly installed on the upper end of one side end face of the exhaust gas treatment box (5). The exhaust gas treatment box (5) is filled with exhaust gas treatment liquid.

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