Waste gas treatment device

Abstract

The utility model discloses a waste gas treatment device, which relates to the technical field of waste gas treatment and comprises a pretreatment component, a circulating component and an alkali washing component, the pretreatment component is provided with an absorption cavity and a waste gas inlet, a waste gas outlet, a liquid outlet and a liquid inlet which are communicated with the absorption cavity, the waste gas inlet is used for introducing waste gas, the waste gas outlet is used for discharging waste gas, the liquid inlet is used for introducing absorption liquid, and the liquid outlet is used for discharging the absorption liquid; the circulating component can be communicated with the liquid inlet and the liquid outlet and can drive the absorption liquid to circulate in the absorption cavity; the alkali washing assembly is provided with a gas inlet and a gas outlet, the gas inlet is communicated with the waste gas outlet, and the gas outlet is used for discharging gas. According to the waste gas treatment device provided by the utility model, the waste gas treatment effect can be improved.

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. Background Technology

[0002] Currently, with the increasing development of industry, environmental problems are becoming more and more prominent, affecting people's normal work and life. Environmental issues are receiving more and more attention. Under these circumstances, it is necessary to increase the research and development of waste gas treatment technologies, effectively control the emission of harmful industrial gases, and reduce their pollution to the atmosphere.

[0003] Currently, the commonly used method for treating waste gas is to directly pass the waste gas into an alkaline scrubbing tank for treatment. However, this method has a short treatment time and poor treatment effect. Utility Model Content

[0004] The purpose of this invention is to provide a waste gas treatment device to solve the problems existing in the prior art and improve the treatment effect of waste gas.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a waste gas treatment device, including a pretreatment component, a circulation component, and an alkaline washing assembly. The pretreatment component has an absorption chamber and a waste gas inlet, a waste gas outlet, a liquid outlet, and a liquid inlet connected to the absorption chamber. The waste gas inlet is used to introduce waste gas, the waste gas outlet is used to discharge waste gas, the liquid inlet is used to introduce absorbent, and the liquid outlet is used to discharge absorbent. The circulation component is connected to the liquid inlet and the liquid outlet, and the circulation component can drive the absorbent to circulate within the absorption chamber. The alkaline washing assembly has an air inlet and an air outlet, the air inlet is connected to the waste gas outlet, and the air outlet is used to discharge gas.

[0007] Preferably, the pretreatment component includes an absorption tube with an absorption chamber inside. The exhaust gas inlet and the exhaust gas outlet are located on opposite sides of the absorption tube, and the liquid inlet and the liquid outlet are located on the upper and lower sides of the absorption tube, respectively. The absorption tube has an atomizing nozzle placed at the liquid inlet, and the absorbent liquid can be atomized and sprayed into the absorption chamber through the atomizing nozzle.

[0008] Preferably, the upper side of the absorption chamber is provided with a plurality of liquid inlets and atomizing nozzles along the airflow direction.

[0009] Preferably, the bottom of the absorption tube is inclined, and the liquid outlet is located at the lower end of the bottom of the absorption tube and close to the exhaust gas outlet.

[0010] Preferably, the pretreatment component further includes an absorption tank, which is disposed below the outlet, and the lower end of the outlet can extend into the absorption tank; the circulation component connects the absorption tank and the inlet.

[0011] Preferably, the pretreatment component includes multiple absorption tubes, the exhaust gas inlet of each absorption tube is used to introduce exhaust gas, and the exhaust gas outlet of each absorption tube is connected to the air inlet of the alkaline washing component; the circulation component connects the liquid inlet and the liquid outlet of each absorption tube.

[0012] Preferably, the circulation component includes a circulation pump and a circulation pipeline, the circulation pipeline being able to connect the inlet and the outlet, and the circulation pump being disposed on the circulation pipeline.

[0013] Preferably, the alkaline washing assembly includes an alkaline washing tower, with the air inlet at the bottom of one side of the alkaline washing tower and the air outlet at the top of the alkaline washing tower; and a treatment liquid is introduced into the alkaline washing tower.

[0014] Preferably, the bottom of the alkaline washing tower is provided with a storage tank connected to the alkaline washing tower, and an alkaline washing pump is provided on one side of the alkaline washing tower. The alkaline washing pump is connected to the storage tank and the alkaline washing tower, and the alkaline washing pump can drive the treatment liquid to circulate in the alkaline washing tower.

[0015] Preferably, a drive pump is provided at the front end of the exhaust gas inlet to drive the exhaust gas into the pretreatment component.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] The waste gas treatment device provided by this utility model is equipped with a pretreatment component that can pretreat the waste gas with an absorbent liquid before it enters the alkaline washing component for alkaline washing. This can improve the treatment time and treatment effect of the waste gas. Moreover, the pretreatment component can recycle the absorbent liquid through a circulation component, which can save costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the waste gas treatment device provided in Example 1.

[0020] In the diagram: 1-Pretreatment component; 11-Absorption chamber; 12-Waste gas inlet; 13-Liquid outlet; 14-Liquid inlet; 15-Absorption pipe; 16-Atomizing nozzle; 17-Absorption liquid tank; 18-Waste gas outlet; 2-Circulation component; 21-Circulation pump; 22-Circulation pipeline; 3-Alkali washing assembly; 31-Air inlet; 32-Air outlet; 33-Alkali washing tower; 34-Alkali washing pump; 35-Storage tank; 4-Drive pump. Detailed Implementation

[0021] 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.

[0022] The purpose of this invention is to provide a waste gas treatment device to solve the problems existing in the prior art and improve the treatment effect of waste gas.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] This embodiment provides a waste gas treatment device; please refer to [link / reference]. Figure 1 The system includes a pretreatment component 1, a circulation component 2, and an alkaline washing assembly 3. The pretreatment component 1 has an absorption chamber 11 and a waste gas inlet 12, a waste gas outlet 18, a liquid outlet 13, and a liquid inlet 14 that are connected to the absorption chamber 11. The waste gas inlet 12 is used to introduce waste gas, the waste gas outlet 18 is used to discharge waste gas, the liquid inlet 14 is used to introduce absorbent, and the liquid outlet 13 is used to discharge absorbent. The circulation component 2 is able to connect the liquid inlet 14 and the liquid outlet 13 and can drive the absorbent to circulate in the absorption chamber 11. The alkaline washing assembly 3 has an air inlet 31 and an air outlet 32. The air inlet 31 is connected to the waste gas outlet 18, and the air outlet 32 ​​is used to discharge gas.

[0026] The pretreatment unit 1 can pretreat the waste gas with the absorbent before it enters the alkaline washing unit 3 for alkaline washing, which can improve the treatment time and effect of the waste gas. Moreover, the pretreatment unit 1 can recycle the absorbent through the circulation unit 2, which can save costs. The absorbent can be plant deodorizer or sodium hypochlorite oxidant as needed.

[0027] In a preferred embodiment, the pretreatment component 1 includes an absorption tube 15 with an absorption chamber 11. An exhaust gas inlet 12 and an exhaust gas outlet 18 are located on opposite sides of the absorption tube 15. A liquid inlet 14 and a liquid outlet 13 are located on the upper and lower sides of the absorption tube 15, respectively, ensuring that the gas and liquid flow directions are perpendicular, thus promoting the pretreatment effect of the liquid on the exhaust gas. The absorption tube 15 has an atomizing nozzle 16 positioned at the liquid inlet 14. The absorbent liquid can be atomized and sprayed into the absorption chamber 11 through the atomizing nozzle 16. This atomization further increases the contact area between the liquid and gas, thereby improving the pretreatment effect. The atomizing nozzle 16 has a droplet diameter of less than 0.04 mm, exhibiting strong adsorption, ensuring sufficient adsorption between the exhaust gas and the absorbent liquid, thereby improving treatment efficiency.

[0028] In the optional scheme of this embodiment, more preferably, the upper side of the absorption chamber 11 is provided with multiple liquid inlets 14 and atomizing nozzles 16 along the airflow direction, which further improves the pretreatment effect of the exhaust gas.

[0029] In the optional scheme of this embodiment, more preferably, the bottom of the absorption pipe 15 is inclined, and the liquid outlet 13 is located at the lower end of the bottom of the absorption pipe 15 and close to the exhaust gas outlet 18. The inclined arrangement facilitates the flow of the absorbent liquid to the liquid outlet 13 and reduces the accumulation of absorbent liquid inside. Specifically, the absorption pipe 15 can be inclined as a whole.

[0030] In the optional embodiment, more preferably, the pretreatment component 1 further includes an absorption liquid tank 17, which is disposed below the outlet 13, and the lower end of the outlet 13 can extend into the absorption liquid tank 17; the circulation component 2 connects the absorption liquid tank 17 and the inlet 14, and the absorption liquid in the absorption liquid tank 17 can liquid seal the outlet 13 to reduce the escape of waste gas, and at the same time facilitate the accumulation of the absorption liquid for recycling.

[0031] In the optional embodiment, more preferably, the pretreatment component 1 includes multiple absorption pipes 15, the exhaust gas inlet 12 of each absorption pipe 15 is used to introduce exhaust gas, and the exhaust gas outlet 18 of each absorption pipe 15 is connected to the air inlet 31 of the alkaline washing component 3; the circulation component 2 connects the liquid inlet 14 and the liquid outlet 13 of each absorption pipe 15; by setting multiple absorption pipes 15 side by side, the pretreatment volume of exhaust gas can be increased, thereby improving the treatment efficiency of exhaust gas; wherein the liquid outlet 13 of the multiple absorption pipes 15 can be circulated through an absorption liquid tank 17 and a circulation component 2, or the absorption liquid can be circulated through an absorption liquid tank 17 and a circulation component 2 respectively.

[0032] In the optional embodiment, more preferably, the circulation component 2 includes a circulation pump 21 and a circulation pipeline 22. The circulation pipeline 22 can connect the liquid inlet 14 and the liquid outlet 13. The circulation pump 21 is installed on the circulation pipeline 22. The circulation of the absorbent liquid is realized through the circulation pump 21.

[0033] In the optional scheme of this embodiment, more preferably, the alkaline washing component 3 includes an alkaline washing tower 33, with an air inlet 31 at the bottom of one side of the alkaline washing tower 33 and an air outlet 32 ​​at the top of the alkaline washing tower 33; and a treatment liquid is introduced into the alkaline washing tower 33, and the waste gas is treated by the treatment liquid such as sodium hydroxide or calcium hydroxide solution, and the treated waste gas is discharged through the air outlet 32.

[0034] In the optional embodiments of this example, a more preferred embodiment is that the bottom of the alkaline washing tower 33 is provided with a storage tank 35 connected to the alkaline washing tower 33, and an alkaline washing pump 34 is provided on one side of the alkaline washing tower 33. The alkaline washing pump 34 connects the storage tank 35 and the alkaline washing tower 33, and can drive the treatment liquid to circulate within the alkaline washing tower 33. The alkaline washing tower 33 adopts a conventional structure, which includes packing and spraying equipment. The treatment liquid is sprayed through the spraying equipment, and cooperates with the packing to increase the gas-liquid contact area, improve mass transfer efficiency, promote chemical reaction, and purify gas. The treatment liquid flows back to the storage tank 35 under the action of gravity, and is circulated back to the spraying equipment for recycling under the action of the alkaline washing pump 34, thus saving costs.

[0035] In the optional scheme of this embodiment, more preferably, a drive pump 4 is provided at the front end of the exhaust gas inlet 12 to drive the exhaust gas into the pretreatment component 1, so that the exhaust gas can enter the pretreatment component 1 at a certain flow rate.

[0036] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A waste gas treatment device, characterized in that: include: The pretreatment unit (1) has an absorption chamber (11) and a waste gas inlet (12), a waste gas outlet (18), a liquid outlet (13) and a liquid inlet (14) communicating with the absorption chamber (11). The waste gas inlet (12) is used to introduce waste gas, the waste gas outlet (18) is used to discharge waste gas, the liquid inlet (14) is used to introduce absorbent liquid, and the liquid outlet (13) is used to discharge absorbent liquid. A circulation component (2) is capable of connecting the inlet (14) and the outlet (13), and the circulation component (2) is capable of driving the absorbent liquid to circulate within the absorption chamber (11); and The alkaline washing assembly (3) has an air inlet (31) and an air outlet (32), the air inlet (31) being connected to the exhaust gas outlet (18), and the air outlet (32) being used to discharge gas.

2. The waste gas treatment device according to claim 1, characterized in that: The pretreatment component (1) includes an absorption tube (15) with an absorption chamber (11) inside. The exhaust gas inlet (12) and the exhaust gas outlet (18) are located on both sides of the absorption tube (15). The liquid inlet (14) and the liquid outlet (13) are located on the upper and lower sides of the absorption tube (15), respectively. The absorption tube (15) has an atomizing nozzle (16) located at the liquid inlet (14), and the absorbent liquid can be atomized and sprayed into the absorption chamber (11) through the atomizing nozzle (16).

3. The waste gas treatment device according to claim 2, characterized in that: The upper side of the absorption chamber (11) is provided with a plurality of liquid inlets (14) and atomizing nozzles (16) along the airflow direction.

4. The waste gas treatment device according to claim 2, characterized in that: The bottom of the absorption tube (15) is inclined, and the liquid outlet (13) is located at the lower end of the bottom of the absorption tube (15) and close to the exhaust gas outlet (18).

5. The waste gas treatment device according to claim 2, characterized in that: The pretreatment component (1) further includes an absorption tank (17), which is located below the outlet (13), and the lower end of the outlet (13) can extend into the absorption tank (17); the circulation component (2) connects the absorption tank (17) and the inlet (14).

6. The waste gas treatment apparatus according to any one of claims 2-5, characterized in that: The pretreatment component (1) includes multiple absorption pipes (15), the exhaust gas inlet (12) of each absorption pipe (15) is used to introduce exhaust gas, and the exhaust gas outlet (18) of each absorption pipe (15) is connected to the air inlet (31) of the alkaline washing component (3); the circulation component (2) is connected to the liquid inlet (14) and the liquid outlet (13) of each absorption pipe (15).

7. The waste gas treatment device according to claim 1, characterized in that: The circulation component (2) includes a circulation pump (21) and a circulation pipeline (22). The circulation pipeline (22) is connected to the inlet (14) and the outlet (13). The circulation pump (21) is installed on the circulation pipeline (22).

8. The waste gas treatment device according to claim 1, characterized in that: The alkaline washing assembly (3) includes an alkaline washing tower (33), with an air inlet (31) at the bottom of one side of the alkaline washing tower (33) and an air outlet (32) at the top of the alkaline washing tower (33); and a treatment liquid is introduced into the alkaline washing tower (33).

9. The waste gas treatment device according to claim 8, characterized in that: The bottom of the alkaline washing tower (33) is provided with a storage tank (35) that is connected to the alkaline washing tower (33). An alkaline washing pump (34) is provided on one side of the alkaline washing tower (33). The alkaline washing pump (34) is connected to the storage tank (35) and the alkaline washing tower (33). The alkaline washing pump (34) can drive the treatment liquid to circulate in the alkaline washing tower (33).

10. The waste gas treatment device according to claim 1, characterized in that: The exhaust gas inlet (12) is equipped with a drive pump (4) at the front end, which is used to drive the exhaust gas into the pretreatment component (1).

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