Waste gas treatment device with multiple mixing structures

Abstract

The utility model belongs to the technical field of waste gas treatment, and particularly relates to a waste gas treatment device with a multi-mixing structure, which comprises an equipment box, a box door is arranged on the front side of the equipment box, a pretreatment chamber and a catalytic reaction chamber are fixedly arranged in the equipment box, a filter screen is arranged in the pretreatment chamber, and the catalytic reaction chamber is arranged in the equipment box. The first mixing chamber, the second mixing chamber and the stirring blades are arranged, gas enters the first mixing chamber and then is mixed with a treating agent, the motor drives the multiple stirring blades, waste gas and the treating agent can form spirally-rising mixed gas flow, the contact area of the waste gas and the treating agent is increased, the contact time of the waste gas and the treating agent is prolonged, and the gas enters the second mixing chamber; when the mixed airflow passes through the baffle, the flow direction can be continuously changed, turbulent flow can be formed, the multiple atomizing nozzles can spray finer treating agent fog drops into a room, the treating agent fog drops are further subjected to mixed reaction with pollutants in waste gas, multiple mixed reaction treatment on the waste gas is achieved, the treatment efficiency can be improved, and the problem of insufficient reaction can be completely eradicated.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a waste gas treatment device with a multi-mixing structure. Background Technology

[0002] Industrial production processes, such as chemical, pharmaceutical, and coating industries, generate large amounts of waste gas containing various pollutants. If this waste gas is discharged directly into the atmosphere without effective treatment, it will pose a serious threat to the environment and human health. Therefore, it is necessary to treat it using waste gas treatment equipment before it is discharged.

[0003] Current waste gas treatment equipment generally only filters waste gas, and some odorous gases are adsorbed by activated carbon particles before being released into the air. This often results in problems such as low treatment efficiency and incomplete reaction, making it difficult to meet increasingly stringent environmental protection requirements. Therefore, a waste gas treatment device with a multi-mixing structure is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a waste gas treatment device with a multi-stage mixing structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a waste gas treatment device with a multi-mixing structure, comprising an equipment box, a door on the front of the equipment box, a pretreatment chamber and a catalytic reaction chamber fixedly arranged inside the equipment box, a filter screen arranged in the pretreatment chamber, an exhaust pipe fixedly arranged on one side of the catalytic reaction chamber, the top end of the exhaust pipe penetrating the top of the equipment box and having a filter cover, and a mixing treatment structure for purifying reaction waste gas arranged inside the equipment box.

[0006] As a further description of the above technical solution:

[0007] The exhaust pipe has two slots on its exterior, and a connecting pipe is fixedly provided at the bottom of the filter cover. Two locking blocks are fixedly provided on the inner wall of the connecting pipe, and the locking blocks and slots are compatible.

[0008] As a further description of the above technical solution:

[0009] The pretreatment chamber is provided with an exhaust gas inlet pipe on one side, one end of which penetrates the inner wall of one side of the equipment box. The bottom of the equipment box is fixed with four support legs arranged in a rectangular pattern.

[0010] As a further description of the above technical solution:

[0011] The mixing structure includes a first mixing chamber fixedly connected to the inner wall of the bottom of the equipment box, a second mixing chamber fixedly located at the top of the first mixing chamber, a guide pipe fixedly located at the bottom of the second mixing chamber, the guide pipe passing through the top of the first mixing chamber and extending into it, a motor fixedly located at the bottom of the first mixing chamber, the output end of the motor extending into the first mixing chamber and fixedly located on a rotating shaft, multiple stirring blades fixedly located outside the rotating shaft, multiple baffles staggered in the second mixing chamber, an air inlet pipe located on one side of the first mixing chamber, the air inlet pipe being connected to one side of the pretreatment chamber, a water pump fixedly located at the top of the second mixing chamber, a drain pipe and an inlet pipe located on both sides of the water pump, one end of the drain pipe extending into the second mixing chamber and fixedly located on a water spray plate, and one end of the inlet pipe passing through the inner wall of the top of the second mixing chamber and fixedly located on a storage tank.

[0012] As a further description of the above technical solution:

[0013] The top of the first mixing chamber is fixedly provided with a treatment agent injection pipe, the top of which penetrates the top inner wall of the equipment box. The top of the second mixing chamber is provided with a gas conduit, one end of which is fixedly connected to one side of the catalytic reaction chamber.

[0014] As a further description of the above technical solution:

[0015] The bottom of the first mixing chamber is provided with a circular hole, and a bearing is fixedly installed in the circular hole. The inner ring of the bearing is fixedly sleeved on the output end of the motor.

[0016] As a further description of the above technical solution:

[0017] The outer surfaces of the baffle and the stirring blades are coated with a corrosion-resistant layer.

[0018] This utility model has the following beneficial effects:

[0019] 1. Compared with existing technologies, this waste gas treatment device with a multi-mixing structure, by setting up a first mixing chamber, a second mixing chamber, a water pump, a liquid storage tank, a motor, and stirring blades, allows the gas to enter the first mixing chamber and mix with the treatment agent. The motor 504 drives multiple stirring blades 506 to rotate, which enables the waste gas and treatment agent to form a spiral upward mixed airflow, increasing the contact area and contact time between the two and promoting the initial reaction. The gas then enters the second mixing chamber. When the mixed airflow passes through the baffle 507, it will continuously change its flow direction and form turbulence. The atomizing nozzle at the bottom of the spray plate 511 can spray finer treatment agent droplets into the chamber, further mixing and reacting with the pollutants in the waste gas. This achieves multi-mixing reaction treatment of waste gas, which not only improves treatment efficiency but also eliminates the problem of incomplete reaction.

[0020] 2. Compared with the existing technology, this exhaust gas treatment device with a multi-mixing structure can perform secondary filtration on the gas that is about to be discharged after treatment by setting a filter cover at one end of the exhaust pipe, which can effectively prevent fine impurities from being emitted into the air. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a waste gas treatment device with a multi-mixing structure proposed in this utility model.

[0022] Figure 2 This is a frontal cross-sectional plan view of a waste gas treatment device with a multi-mixing structure proposed in this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the mixing structure in a waste gas treatment device with a multi-mixing structure proposed in this utility model.

[0024] Figure 4 This is a cross-sectional perspective view of the mixing structure in a waste gas treatment device with a multi-mixing structure proposed in this utility model;

[0025] Figure 5 This is a frontal cross-sectional view of the mixing structure in a waste gas treatment device with a multi-mixing structure proposed in this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the exhaust pipe and filter cover after separation in a waste gas treatment device with a multi-mixing structure proposed in this utility model.

[0027] Legend:

[0028] 1. Equipment box; 2. Box door; 3. Pretreatment chamber; 4. Exhaust gas inlet pipe; 5. Mixing treatment structure; 501. First mixing chamber; 502. Second mixing chamber; 503. Guide pipe; 504. Motor; 505. Rotating shaft; 506. Stirring blades; 507. Baffle; 508. Air inlet pipe; 509. Water pump; 510. Drain pipe; 511. Water spray tray; 512. Liquid storage tank; 513. Gas conduit; 514. Liquid inlet pipe; 515. Treatment agent injection pipe; 6. Catalytic reaction chamber; 7. Exhaust pipe; 8. Filter cover; 9. Slot; 10. Locking block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figures 1 to 6 The present invention provides a waste gas treatment device with a multi-mixing structure: including an equipment box 1, a box door 2 on the front of the equipment box 1, a pretreatment chamber 3 and a catalytic reaction chamber 6 fixedly arranged inside the equipment box 1, a waste gas inlet pipe 4 on one side of the pretreatment chamber 3, one end of the waste gas inlet pipe 4 penetrating the inner wall of one side of the equipment box 1, four support legs arranged in a rectangle fixedly arranged at the bottom of the equipment box 1, a filter screen in the pretreatment chamber 3, an exhaust pipe 7 fixedly arranged on one side of the catalytic reaction chamber 6, and the top end of the exhaust pipe 7 penetrating the top of the equipment box 1 and having a filter cover 8.

[0031] To achieve secondary filtration, there are two slots 9 on the outside of the exhaust pipe 7, and a connecting pipe is fixedly provided at the bottom of the filter cover 8. Two blocks 10 are fixedly provided on the inner wall of the connecting pipe. The blocks 10 and the slots 9 are compatible. The filter cover 8 at one end of the exhaust pipe 7 can perform secondary filtration of the gas, which can prevent fine impurities from being emitted into the air.

[0032] To achieve the purpose of multiple mixing treatments, the equipment box 1 is equipped with a mixing treatment structure 5 for purifying reaction waste gas. The mixing treatment structure 5 includes a first mixing chamber 501 fixedly connected to the inner wall of the bottom of the equipment box 1, a second mixing chamber 502 fixedly connected to the top of the first mixing chamber 501, a guide pipe 503 fixedly connected to the bottom of the second mixing chamber 502, the guide pipe 503 passing through the top of the first mixing chamber 501 and extending into it, and a motor 504 fixedly connected to the bottom of the first mixing chamber 501. The output end of the motor 504 extends into the first mixing chamber 501 and is fixedly connected to a rotating shaft 505. The bottom of the mixing chamber 501 has a circular hole, and a bearing is fixedly installed inside the circular hole. The inner ring of the bearing is fixedly fitted onto the output end of the motor 504. Multiple stirring blades 506 are fixedly installed on the outside of the rotating shaft 505. Multiple baffles 507 are staggered in the second mixing chamber 502. The outer surfaces of the baffles 507 and the stirring blades 506 are coated with a corrosion-resistant layer. An air inlet pipe 508 is provided on one side of the first mixing chamber 501, and the air inlet pipe 508 is connected to one side of the pretreatment chamber 3. A water pump 509 is fixedly installed on the top of the second mixing chamber 502. A drain pipe 510 and an inlet pipe 514 are respectively provided on both sides of the water pump 509. One end of the drain pipe 510 extends into the second mixing chamber 502 and is fixedly mounted on a water spray plate 511. Multiple atomizing nozzles are located at the bottom of the water spray plate 511. One end of the inlet pipe 514 penetrates the top inner wall of the second mixing chamber 502 and is fixedly mounted on a storage tank 512. A treatment agent injection pipe 515 is fixedly mounted on the top of the first mixing chamber 501, and the top of the treatment agent injection pipe 515 penetrates the top inner wall of the equipment box 1. A gas conduit 513 is located on the top of the second mixing chamber 502, and one end of the gas conduit 513 is fixedly connected to one side of the catalytic reaction chamber 6. After the gas enters the first mixing chamber 501, it reacts with the treatment agent... The treatment agent is mixed, and the motor 504 drives multiple stirring blades 506 to rotate, which enables the waste gas and the treatment agent to form a spiral upward mixed airflow, increasing the contact area and contact time between the two and promoting the initial reaction. The gas will then enter the second mixing chamber 502. When the mixed airflow passes through the baffle 507, it will continuously change its flow direction and form turbulence. The atomizing nozzle at the bottom of the water spray plate 511 can spray finer treatment agent droplets into the chamber, further mixing and reacting with the pollutants in the waste gas. This achieves multiple mixing reaction treatment of waste gas, which not only improves treatment efficiency but also eliminates the problem of incomplete reaction.

[0033] Working principle: In use, the treatment agent is first added through the treatment agent injection pipe 515, and then the oxidant solution is introduced into the storage tank 512. Next, the water pump 509 and motor 504 are started. Then, the waste gas is introduced into the waste gas inlet pipe 4. The filter screen in the pretreatment chamber 3 filters out large particulate impurities in the waste gas. After filtration, the waste gas enters the first mixing chamber 501, where it mixes with the treatment agent. The motor 504 drives multiple stirring blades 506 to rotate, creating a spiral upward mixed airflow between the waste gas and the treatment agent, increasing the contact area and contact time, promoting the initial reaction, and pre-treating the waste gas. The gas then enters the second mixing chamber 502. As the exhaust gas and the pre-reacted mixed gas flow pass through the baffle 507, their flow direction changes continuously, forming turbulence. The atomizing nozzles at the bottom of the spray plate 511 can spray finer treatment agent droplets into the chamber, further mixing and reacting with the pollutants in the exhaust gas. The gas that has been treated again is introduced into the catalytic reaction chamber 6 through the gas duct 513. Under the action of the catalyst, a deep chemical reaction takes place, converting the harmful substances in the exhaust gas into harmless substances. Finally, the gas is discharged through the exhaust pipe 7. The filter cover 8 at one end of the exhaust pipe 7 can perform secondary filtration of the gas, preventing fine impurities from being emitted into the air.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waste gas treatment device with a multi-mixing structure, comprising an equipment box (1), characterized in that: The equipment box (1) has a door (2) on the front. The equipment box (1) is equipped with a pretreatment chamber (3) and a catalytic reaction chamber (6). The pretreatment chamber (3) is equipped with a filter screen. The catalytic reaction chamber (6) is equipped with an exhaust pipe (7) on one side. The top of the exhaust pipe (7) passes through the top of the equipment box (1) and is equipped with a filter cover (8). The equipment box (1) is equipped with a mixing treatment structure (5) for purifying the reaction waste gas.

2. The waste gas treatment device with a multi-mixing structure according to claim 1, characterized in that: The exhaust pipe (7) has two slots (9) on its outside. The bottom of the filter cover (8) is fixedly provided with a connecting pipe. The inner wall of the connecting pipe is fixedly provided with two blocks (10). The blocks (10) and the slots (9) are compatible.

3. The waste gas treatment device with a multi-mixing structure according to claim 1, characterized in that: The pretreatment chamber (3) is provided with an exhaust gas inlet pipe (4) on one side. One end of the exhaust gas inlet pipe (4) penetrates the inner wall of one side of the equipment box (1). The bottom of the equipment box (1) is fixed with four support legs arranged in a rectangular pattern.

4. The waste gas treatment device with a multi-mixing structure according to claim 1, characterized in that: The mixing structure (5) includes a first mixing chamber (501) fixedly connected to the bottom inner wall of the equipment box (1). A second mixing chamber (502) is fixedly provided at the top of the first mixing chamber (501). A guide pipe (503) is fixedly provided at the bottom of the second mixing chamber (502). The guide pipe (503) passes through the top of the first mixing chamber (501) and extends into it. A motor (504) is fixedly provided at the bottom of the first mixing chamber (501). The output end of the motor (504) extends into the first mixing chamber (501) and is fixedly provided with a rotating shaft (505). Multiple stirring blades (506) are fixedly provided on the outside of the rotating shaft (505). The second mixing chamber (502) has multiple baffles (507) arranged in an alternating pattern. The first mixing chamber (501) has an air inlet pipe (508) on one side, which is connected to one side of the pretreatment chamber (3). A water pump (509) is fixedly installed on the top of the second mixing chamber (502). A drain pipe (510) and an inlet pipe (514) are respectively installed on both sides of the water pump (509). One end of the drain pipe (510) extends into the second mixing chamber (502) and is fixedly installed with a water spray plate (511). One end of the inlet pipe (514) penetrates the inner wall of the top of the second mixing chamber (502) and is fixedly installed with a liquid storage tank (512).

5. The waste gas treatment device with a multi-mixing structure according to claim 4, characterized in that: The top of the first mixing chamber (501) is fixedly provided with a treatment agent injection pipe (515), the top of which penetrates the top inner wall of the equipment box (1). The top of the second mixing chamber (502) is provided with a gas conduit (513), one end of which is fixedly connected to one side of the catalytic reaction chamber (6).

6. The waste gas treatment device with a multi-mixing structure according to claim 4, characterized in that: The bottom of the first mixing chamber (501) is provided with a circular hole, and a bearing is fixedly installed in the circular hole. The inner ring of the bearing is fixedly sleeved on the output end of the motor (504).

7. The waste gas treatment device with a multi-mixing structure according to claim 4, characterized in that: The outer surfaces of the baffle (507) and the stirring blade (506) are coated with a corrosion-resistant layer.

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