CN111408233A - Gas treatment device - Google Patents

Abstract

The invention provides a gas treatment device, which comprises a cavity formed by a shell body surrounding structure and a filter unit arranged in the cavity. The two ends of the device shell are respectively provided with an air inlet and an air outlet for air to enter and exit the cavity, and the filtering unit is driven to be rotationally separated between the air inlet and the air outlet; the cavity is not filled with the treatment liquid, and the filter unit is partially flushed in the treatment liquid; forming a channel for gas to flow through above the liquid level of the treatment liquid; the gas passes through the filtering unit soaked with the treatment liquid on the way of flowing; the removal of harmful substances in the gas is formed due to the interception of the filtering unit and/or the action of the treatment liquid. The gas treatment device of the invention can prolong the service life of the filter material in the gas treatment device, thereby reducing the cost of gas treatment and purification.

Description

Gas treatment device

technical field

The present invention relates to the technical field of gas treatment and purification, in particular to a gas treatment device.

Background technique

With the development of social industry, the impact of factory exhaust gas and automobile exhaust gas on the atmosphere is becoming more and more serious. Therefore, countries are paying more and more attention to environmental protection, and the emission requirements for various types of exhaust gas and exhaust gas are constantly increasing; whether it is exhaust gas from factories or catering industries , or vehicle exhaust, it is necessary to first process the discharged gas containing harmful substances, and only after meeting certain index requirements can it be discharged into the atmosphere. In some specific industries or environments that require higher air cleanliness, it is also necessary to purify the air with higher requirements to meet the requirements of use. Therefore, gas treatment purification technology has been deeply developed and widely used.

In the existing gas treatment equipment, it is still mainly based on filtering devices, such as filter screens, filter elements, filter cotton, etc., to intercept and filter the passing gas, or to remove dust by spraying with water. Spray dust removal requires a lot of water and generates a lot of sewage; if a filter device is used, it is necessary to regularly flush or replace the filter material, and the consumption of filter material results in a high operating cost of the device.

SUMMARY OF THE INVENTION

In view of this, the present invention aims to provide a gas treatment device, so as to prolong the life of the filter material in the gas treatment device, thereby reducing the cost of gas treatment and purification.

In order to achieve the above object, the technical scheme of the present invention is achieved in this way:

A gas processing device has a cavity formed by a casing, and a filter unit arranged in the cavity, the two ends of the casing are respectively provided with an air inlet and a discharge port for gas to enter and exit the cavity an air port, the filter unit is driven and rotated between the air inlet and the exhaust port; the cavity is filled with a treatment liquid, so that the filter unit is partially immersed in the treatment liquid in the middle; above the liquid level of the treatment liquid, a channel for the gas to flow through is formed; the gas passes through the filter unit with the treatment liquid on the way.

Further, the filter unit is a rotary body, and the cavity where the filter unit is located has a space for the filter unit to be sealed and rotated in the cavity.

Further, the liquid level of the treatment liquid is located between one third and two thirds of the height of the filter unit.

Further, the filter unit includes a frame, and several layers of thin-walled filter bodies arranged in the frame.

Further, the filter unit is provided with a layer of filter body, and the filter body is in the shape of a convex curved surface facing the flow direction of the gas.

Further, multiple layers of filter bodies are arranged on the filter unit at intervals, and fillers that can act on the gas are filled between the filter bodies.

Further, the filter body is a porous filter structure body or an adsorbent body.

Further, along the flow direction of the gas, a plurality of filter units are arranged at intervals in the cavity in sequence, and the pores of the filter body on each filter unit are sequentially from large to small.

Further, the bottom of the shell is constructed with a settling tank that communicates with the cavity and slopes downward against the flow of the gas; the sediment captured or reacted by the treatment liquid slides to the end of the settling tank through the settling tank, and can pass through the settling tank. The discharge port opened at the end is discharged.

Further, the upper part of the casing is provided with a filling port, and a liquid level detection device that can monitor the treatment liquid in the cavity is arranged on the casing; the treatment liquid can be adjusted by the filling port according to the change of the liquid level in the cavity. Fill in, and can constitute the maintenance of the liquid level in the cavity.

Compared with the prior art, the present invention has the following advantages:

(1) In the gas treatment device of the present invention, a part of the treatment liquid is contained in the cavity in the casing, and the filter unit is partially soaked and installed in the casing in a rotating manner; when the gas flows through the filter unit, the dust in the gas can be removed. Due to the interception of the filter unit and the adhesion of the treatment liquid, the harmful gas in the gas can also be reacted or dissolved and absorbed by the appropriate treatment liquid; the intercepted dust or absorbed substances can also be washed into the treatment liquid and leave the filter The gas treatment device not only has a better gas treatment effect, but also the filter material in the filter unit has a longer life due to timely flushing, which is conducive to reducing the cost of gas treatment and purification.

(2) The cavity and the filter unit are in the shape of a revolving body, which is conducive to the rotating arrangement of the filter unit, and the filter unit can well separate the cavity, thereby creating good conditions for the flow and filtration of the gas.

(3) The liquid level of the treatment liquid is maintained above the axis of the filter unit, so that the entire wetting of the filter unit can be ensured.

(4) Using one or two layers of filter body for filtration can achieve the predetermined filtering effect, which is also conducive to the installation of the filter body on the frame and the scouring of the filter body.

(5) The filter body with curved surface structure can use centrifugal force to throw out the solid impurities attached to the filter body, which is helpful for the cleaning of the filter body.

(6) The use of two layers of filters and the addition of specific fillers such as activated carbon can react or absorb specific components in the gas, thereby enhancing the treatment performance of the gas treatment device.

(7) The filter screen is used, which is easy to be equipped, and has the characteristics of being suitable for scouring cleaning and high durability.

(8) Multiple filter units are set up in sequence. According to different conditions such as the composition of harmful substances in the gas and the size of the dust particle size, filter units with various filtering functions can be set up in a targeted manner, so as to improve the gas quality of the gas treatment device. Handling performance and suitability.

(9) A settling tank is constructed at the bottom of the shell, which can accumulate and slide out the solid substances suspended or reacted in the treatment liquid and slowly settle, thereby improving the clarity of the treatment liquid.

(10) A liquid level detection device is installed on the shell. When the solid material is discharged from the discharge port, the liquid is taken away and the liquid level in the cavity drops, which can be filled into the cavity in real time through the filling port, so as to maintain the liquid level of the treatment liquid. Surface height, and create good conditions for the replacement or recycling of the treatment liquid; it is conducive to the maintenance of the treatment performance of the device.

Description of drawings

The accompanying drawings that form a part of the present invention are used to provide a further understanding of the present invention, the schematic embodiments of the present invention and their descriptions are used to explain the present invention, and the azimuth words such as front and rear, upper and lower, etc. involved are only used to indicate The relative positional relationship does not constitute an improper limitation of the present invention. In the attached image:

FIG. 1 is a schematic diagram of the overall structure of the gas processing device according to Embodiment 1 of the present invention;

2 is a schematic diagram of the overall structure of the gas processing device according to Embodiment 1 of the present invention from another perspective;

3 is a schematic diagram of the internal structure of the gas processing device according to Embodiment 1 of the present invention;

Fig. 4 is the sectional structure schematic diagram of the position shown in A-A in Fig. 1;

Fig. 5 is a partial enlarged view of the part shown in B in Fig. 4;

6 is a schematic cross-sectional structure diagram of the gas processing device according to the second embodiment of the present invention;

Description of reference numbers:

1- Shell, 100- Lower shell, 101- Air inlet side plate, 102- Discharge end side plate, 103- Settlement tank, 104- Encapsulation flange, 105- Fastening bolt, 106- Air inlet, 1061 -Water retaining cover, 107- Air supply hole, 108- Exhaust port, 109- Compartment plate, 110- Upper shell, 120- Filling port, 121- First filling port, 122- Second filling port, 130- Volume Waste bin, 131-first waste bin, 132-second waste bin, 133-first discharge port, 134-second discharge port, 135-waste chamber, 136-blocking member, 137-liquid return hole , 138- liquid return port, 140- container, 141- first container, 142- second container, 143- stuffing box, 1430- cavity, 1431- supporting flange, 1432- avoidance part , 1433-through hole, 144-through hole, 150-spray head;

2-filter unit, 200-filter body, 201-frame, 202-support frame, 203-rotating shaft, 204-motor, 205-bearing, 206-shaft seal, 207-seal body, 21-first filter unit, 22- The second filter unit, 23 - the third filter unit, 24 - the fourth filter unit.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

In addition, in the description of the present invention, the directional nouns such as left, right, upper and lower involved are for the convenience of description and are based on the terms in the illustrated state, and should not be construed as constituting a limitation to the structure of the present invention; the mentioned The first, second, third, etc. are also for the convenience of description and should not be construed as indicating or implying relative importance.

Example 1

This embodiment relates to a gas treatment device, which can prolong the life of the filter material in the gas treatment device, thereby reducing the cost of gas treatment and purification. The gas processing device has a cavity formed by a casing, and a filter unit arranged in the cavity. The two ends of the casing are respectively provided with an air inlet and an exhaust for gas to enter and exit the cavity. The filter unit is driven and rotated to be separated between the air inlet and the exhaust port; the cavity is not filled with treatment liquid, and the filter unit is partially flushed with the treatment liquid above the liquid level of the treatment liquid, a channel for the gas to flow through is formed; the gas passes through the filter unit soaked with the treatment liquid during the flow; The interception and/or the action of the treatment liquid constitutes the removal and separation of harmful substances in the gas.

Based on the above-mentioned general structural principles, the following will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments. An exemplary structure of the gas treatment device of this embodiment is shown in FIG. 1 , which mainly includes a casing 1 and a filter unit 2 .

Referring to FIG. 2 and FIG. 3 , a preferred structure is as follows: the casing 1 is constructed as a lower casing 100 and an upper casing 110 respectively, and the gas inlet end side plates 101 and the exhaust end side plates at both ends of the casing 1 The plate 102 may be integrally constructed with the lower case 100 . After the filter unit 2 and other components are assembled into the cavity of the casing 1 through the opening above the casing 1, the upper casing 110 is then sealed, and the sealing flanges 104 of the lower casing 100 and the upper casing 110 are sealed Fitted and fastened by fastening bolts 105 to form a closed cavity.

The air inlet 106 of the cavity can be provided on the air inlet side plate 101, and the exhaust port 108 can be provided on the exhaust end side plate 102. Obviously, at least the air outlet 108 needs to be opened near the upper part of the housing 1 to prevent After the cavity contains the treatment liquid, the treatment liquid floods the exhaust port 108 . The filter unit 2 is arranged in the cavity and separates the air inlet 106 and the exhaust port 108. The filter unit 2 adopts a rotatable assembly structure and can be driven to rotate by an external force. As shown in FIG. 3 and FIG. 4 , the filter unit 2 can be fixedly mounted on the rotating shaft 203, one end or both ends of the rotating shaft 203 are penetrated on the casing 1, and one end of the rotating shaft 203 is exposed to the casing through the side wall of the casing 1. Outside 1, a motor 204 is installed at this end, and the filter unit 2 is driven by the motor 204 to rotate in the cavity. Preferably, the bearing 205 and the shaft seal 206 are installed at the part where the shaft 203 penetrates the side wall of the housing 1 , and the bearing 205 is also installed at other pivotally fixed parts of the shaft 203 to improve the rotational stability of the shaft 203 in the cavity.

In order to achieve the good treatment effect of the treatment liquid on the gas, and along with the rotation of the filter unit 2, it is beneficial for the treatment liquid to scour the filter unit 2 to remove the pollutants attached to the filter unit 2, and the cavity is filled with the treatment liquid; It is explained that the treatment liquid in the cavity cannot be filled up, so that the filter unit 2 can be partially immersed in the treatment liquid, and the filter unit 2 can be washed with the rotation of the filter unit 2. Above the surface, a channel for the gas to flow through can be formed. When the gas flows through, it will pass through the filter unit 2 soaked with the treatment liquid; due to the interception and filtration of the filter unit 2, the dust in the gas will be treated; the gaseous harmful substances contained in the gas, such as sulfur dioxide, can be configured Alkaline treatment liquid that can react with sulfur dioxide and other harmful gases can also be equipped with corresponding treatment liquid to achieve the effect of targeted treatment; in this way, these harmful substances will be dissolved, absorbed or reacted by the treatment liquid to form insoluble in water of solid sediments. So as to achieve the effect of removing various harmful substances in the gas by the gas treatment device. 4, a water blocking cover 1061 can be installed on the inner side of the air inlet 106 to prevent the liquid from being poured back into the air supply pipeline of the air inlet 106 when the treatment liquid fluctuates or splashes; the exhaust port 108 can also be set to prevent the treatment liquid from splashing The mask structure of the cavity. Preferably, the water blocking cover 1061 is set on the inlet of the air inlet 106 by using an arc-shaped plate cover, the upper and lower parts of the water blocking cover 1061 are fixed on the inner wall of the gas inlet side plate 101, and the left and right sides of the water blocking cover 1061 are open for the gas to enter. inside the cavity.

Still as shown in FIG. 3 and FIG. 4 , the structural shapes of the housing 1 and the filter unit 2 can be designed flexibly. Adopting the shape of a revolving body, in order to ensure its good rotating operation, the cavity where the filter unit 2 is located has a space for the filter unit 2 to be sealed and rotated in the cavity; for the convenience of construction, the cavity is preferably in the shape of a cylinder, Of course, the shape of the cavity and other parts of the housing 1 can be configured in various shapes as required, except for the space part for the filter unit 2 to rotate. At least the inner wall of the cavity matched with the outer peripheral surface of the filter unit 2 is a cylindrical surface coaxial with the filter unit 2 . For example, the inner wall of the cavity is set in a cylindrical shape, or the cavity is directly set in a cylindrical shape, and the filter unit 2 is designed as a disc-shaped rotating body coaxial with the cavity. The cavity and the filter unit 2 are in the shape of a revolving body, which is beneficial to the rotating arrangement of the filter unit 2, so that the filter unit 2 can well separate the cavity, thereby creating good conditions for the flow and filtration of the gas.

It should be pointed out that a compartment plate 109 can be added in the middle of the cavity to form a pivot bearing for the rotating shaft 203; 205. At the same time, the compartment plate 109 can be used to separate the cavity into two compartments, or multiple compartment plates 109 can be added to separate multiple compartments, and the upper parts of the compartments are connected to form a channel for the gas to flow through. ; Each warehouse contains treatment liquids of different properties, and each warehouse is equipped with one or more filter units 2 to achieve the removal and/or separation of several substances such as dust in the gas and harmful gaseous substances of various properties. . For example, dust can be separated into a treatment liquid, and gaseous substances such as nitrogen oxides and sulfur dioxide can be dissolved and reacted with a treatment liquid that can match the reaction to remove them.

Regarding the liquid level height of the treatment liquid in the cavity, it can be set between one third and two thirds of the height of the filter unit 2 . It is preferable to keep the liquid level of the treatment liquid above the axis of the filter unit 2 , so as to ensure complete wetting of the filter unit 2 by the treatment liquid.

In order to achieve a good filtering effect, in this embodiment, the filter unit 2 is designed in the form of a disc. The filter unit 2 includes a frame 201 and several layers of thin-walled filter bodies 200 arranged in the frame 201. . Using one or several layers of the filter body 200 for filtering can achieve a predetermined filtering effect, which is also beneficial to the installation of the filter body 200 on the frame 201 and the scouring of the filter body 200 .

When adopting the structure of arranging one layer of filter bodies 200, the filter body 200 may be a plane shape or a convex shape, preferably, the filter body 200 is a convex curved surface shape facing the flow direction of the gas. Using the filter body 200 with a curved surface structure, the solid impurities adhering to the filter body 200 can be thrown out by means of centrifugal force, which is helpful for the cleaning of the filter body 200 . As shown in FIG. 4 and FIG. 5 , for the specific structure of the filter unit 2, in order to strengthen its stability, a support frame 202 can be installed between the central part of the filter unit 2 fixed on the rotating shaft 203 and the frame 201; 201 can be designed to be cylindrical, and the treatment liquid or solid objects thrown out by the filter body 200 are blocked and collected by the frame 201, and then enter the treatment liquid with it; of course, the filter body 200 can also be installed in the frame 201. On the upstream side, the treatment liquid or solid objects thrown out by the filter body 200 are directly thrown into the treatment liquid. In order to maintain the relative isolation effect on both sides of the filter unit 2, a soft and wear-resistant sealing body 207 can be installed on the outside of the frame 201 to form a certain seal between the frame 201 and the inner wall of the housing 1. Rubber rings made of grinding rubber, or dense brushes or high-sealing bearings, etc. At the same time, bosses supporting the frame 201 can be constructed on the two sides or the downstream side of the frame 201 on the inner wall of the cavity, so as to increase the stability of the filter unit 2 when it is impacted by the airflow. On the inner wall surface of the cavity, annular protrusions are arranged on both sides of each filter unit 2 , and a plurality of rolling elements are arranged between the annular protrusion and the filter unit 2 . In terms of specific structure, a bracket is provided on the side of the annular protrusion facing the corresponding filter unit 2 , and the rolling element is a ball positioned and mounted on the bracket. The outer frame is provided with a slideway for the balls to slide. Here, by providing annular protrusions and rolling elements, the bearing capacity of the housing 1 to the filter unit 2 can be increased, and at the same time, rolling friction is used to increase the stability and effectively reduce the frictional force of the filter unit 2 during the rotation process. , thereby reducing wear during use.

As shown in FIG. 4 , when the filter unit 2 adopts two layers of filter bodies 200 , the two filter bodies 200 are arranged at intervals on the filter unit 2 , and a filler that can act on gas can be filled between the two filter bodies 200 . The use of two layers of filter body 200 and the addition of specific fillers such as activated carbon can react or absorb specific components in the gas, thereby enhancing the treatment performance of the gas treatment device. In addition, an activated carbon adsorption device can also be installed downstream of the exhaust port 108 to further improve the cleanliness of the exhaust gas of the device.

The material of the filter body 200 can be a filter cloth, a filter screen, or a porous filter structure or an adsorbent, such as a filter disc made of activated carbon or filter stone. When there are multiple layers of filter bodies 200 in the same filter unit 2, each filter body 200 may use the same filter material or a combination of multiple filter materials. When using a filter, it can be a metal mesh, a plastic fiber mesh, etc., which can be selected flexibly according to the pollutants contained in the gas; the filtering fineness of the mesh, that is, the mesh size of the mesh, can be equipped according to the gas treatment requirements. When the filter body 200 adopts a filter screen, it is easy to be equipped, and has the characteristics of being suitable for scouring cleaning and high durability. When the filter body 200 is used as an activated carbon filter disc, since the activated carbon also has a good adsorption effect in water, it can absorb various gases such as sulfur dioxide in the gas, and these adsorbed substances can be washed by the treatment liquid. Dissolve in the treatment liquid , or react with the treatment liquid to neutralize, so as to clean and restore the performance of activated carbon. Moreover, in the application scenario of this embodiment, many problems in the existing application modes of activated carbon are overcome. For example, when the existing activated carbon is applied in the air stream, because there is no wetting of the liquid, when the air temperature is too high, the activated carbon may burn. After that, activated carbon will adsorb more impurities, and lack of necessary cleaning, the performance of activated carbon will quickly decline and need to be replaced. In the application of this embodiment, the above-mentioned problems are overcome, so that the activated carbon can exert long-lasting good adsorption performance.

At the same time, in the cavity, along the flow direction of the gas, a plurality of filter units 2 can be arranged at intervals in sequence, and the mesh number of the filter screen on each filter unit 2 increases sequentially. When it is a filter body 200 made of other materials, The distribution of pores in turn from large to small. In this way, according to different situations such as the composition of harmful substances in the gas, the size of the particle size of the dust, and the required gas treatment effect, filter units 2 with various filtering functions can be set up in a targeted manner to realize step-by-step filtering and treatment. , thereby improving the gas treatment performance and applicability of the gas treatment device.

In addition, a plurality of storage baskets 140 can be arranged in the cavity. Corresponding to the storage baskets 140, a plurality of filling ports 120 are opened on the upper shell 110. The storage baskets 140 can allow the shaft 203 to penetrate through the storage baskets. Dense through holes 144 are machined on the side wall of 140 . In addition to replenishing the treatment liquid through the filling port 120, bulk fillers with a slow dissolution rate, such as calcite, limestone, sodium carbonate, etc., can be added to the container basket 140. With the gradual dissolution and reaction of the fillers, the treatment can be improved. The chemical treatment performance of the liquid, thereby extending the treatment performance of the device. For example, when calcium carbonate filler is used, it can generate calcium bicarbonate which is easily soluble in water in the presence of carbon dioxide and water, which can accelerate the neutralization of the treatment liquid after absorbing acid gases such as sulfur dioxide. The material holding baskets 140 can be set independently, or can be set in pairs corresponding to the filter units 2. In this embodiment, as shown in FIG. There are a first container 141 and a first filling port 121 , and a second container 142 and a second filling port 122 are provided corresponding to the second filter unit 22 .

Based on the above structure, in order to further improve the working efficiency of the treatment liquid, as shown in FIG. 4 , the bottom of the casing 1 is constructed with a settling tank 103 that communicates with the cavity and slopes downward against the flow of gas; The sediment generated by the reaction slides to the end of the sedimentation tank 103 through the sedimentation tank 103, and can be discharged through the discharge port opened at the end. A sedimentation tank 103 is constructed at the bottom of the housing 1, which can accumulate and slide out the solid substances that are suspended or reacted in the treatment liquid and slowly settle, thereby improving the clarity of the treatment liquid. In this embodiment, a waste storage bin 130 is also provided below the discharge port, which includes a first waste storage bin 131 corresponding to the first filter unit 21 and below the first discharge port 133 , and a waste storage bin 131 corresponding to the second filter unit 22 . The second waste bin 132 below the second discharge port 134. They respectively collect the solid wastes settled in the corresponding bins and slipped out from the settling tank 103 .

In addition, when replenishing the treatment liquid through the filling port 120, it is necessary to use the liquid level detection device provided on the casing 1 to monitor the treatment liquid in the cavity to know the liquid level in real time, and a transparent sight glass window can be used. To manually check and control the amount of fluid supplementation, a liquid level gauge, a control meter and a fluid supplement pump can also be used to control fluid supplementation through a simple chain to maintain the position of the fluid level in the cavity. A liquid level detection device is added on the casing 1. When the solid substance is discharged from the discharge port, the liquid is taken away and the liquid level in the cavity is lowered. The filling port 120 can be filled into the cavity in real time, so as to maintain the liquid level of the treatment liquid. high, and create good conditions for the replacement or recycling of the treatment liquid; it is beneficial to the maintenance of the treatment performance of the device. At the same time, pressure, temperature, PH and other detection devices can also be installed in the cavity to judge the blockage according to the differential pressure value on both sides of the filter unit 2, and to grasp the working temperature and treatment liquid in the cavity in real time.

Embodiment 2

The cross-sectional structure of another structural form of the gas treatment device described in this embodiment is shown in FIG. 6 , the housing 1 of the device is a cavity of a separate warehouse, and a first filter is arranged in sequence along the flow direction of the gas. Unit 21, the second filter unit 22, the third filter unit 23, and the fourth filter unit 24 are four filter units 2, and the filtration levels of the four filter units 2 are increased in sequence, for example, the mesh size can be increased from 5 meshes to 40 meshes; or Use different filter media to remove corresponding harmful substances.

A spray head 150 can be installed above the upstream side of the first filter unit 21 to achieve preliminary spraying and dedusting of the gas. For the gas containing the gas that needs to be supplemented with oxygen to easily react with the treatment liquid, the gas inlet side plate 101 A supplementary air hole 107 is added on the top for supplementary air. Only one filling port 120 may be opened on the upper casing 110. Preferably, the filling port 120 is opened at the downstream position closest to the gas flow direction, so that when the treatment liquid is added, the liquid flow of the treatment liquid can assist in flushing away the accumulated storage in the sedimentation tank 103. of sediments. A waste storage bin 130 is provided below the first discharge port 133. The bottom of the waste storage bin 130 is preferably tapered, and a discharge port is provided at the lowermost end. The discharge port can be blocked by a blocking member 136, which can be a valve or a Wire plugs, etc. When a large amount of sediment is accumulated in the waste storage bin 130, the blocking member 136 can be opened, and the solid waste will be mixed with the treatment liquid and discharged from the discharge port along the inner wall of the conical surface.

At the same time, the inner cavity of the waste storage bin 130 can be divided into two parts, and the waste storage cavity 135 serving as the main chamber of the waste storage bin 130 receives the sediment waste falling from the first discharge port 133 ; avoids the lower part of the first discharge port 133 , a small cavity for the treatment liquid to be discharged is separated on the upper part of the waste storage bin 130, a liquid return hole 137 is opened between the small cavity and the waste storage cavity 135 for the circulation of the treatment liquid, and a small cavity is arranged outside the waste storage bin 130 to communicate with the small cavity The liquid return port 138. When the treatment liquid needs to be discharged, it can be discharged through the liquid return port 138, or a supply pump, a reaction tank and other units can be installed between the liquid return port 138 and the filling port 120, and the used treatment liquid can be replenished after treatment. into the cavity to realize the recycling of the treatment liquid.

The other parts of the gas processing device in this embodiment can be set with reference to the content of the first embodiment, and are not repeated here.

In the gas treatment device described in the above-mentioned embodiments, a part of the treatment liquid is contained in the cavity in the housing 1, and the filter unit 2 is partially soaked and installed in the housing 1 in a rotating manner; when the gas flows through the filter unit 2, The dust in the gas can be removed by the interception of the filter unit 2 and the adhesion of the treatment liquid, and the harmful gas in the gas can also be reacted or dissolved and absorbed by the suitable treatment liquid; the intercepted dust or absorbed substances can also be washed. The gas treatment device not only has a better gas treatment effect, but also the filter material in the filter unit 2 has a longer life due to timely flushing, which is conducive to reducing the cost of gas treatment and purification.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. A gas treatment device, having a cavity formed by a casing (1), and a filter unit (2) arranged in the cavity, characterized in that: two parts of the casing (1) The end is provided with an air inlet (106) and an exhaust port (108) for gas to enter and exit the cavity, and the filter unit (2) is driven and rotated to be arranged on the air inlet (106) and the exhaust port (108); the cavity is filled with a treatment liquid, so that the filter unit (2) is partially immersed in the treatment liquid; above the liquid level of the treatment liquid, a supply of the gas is formed The passage through which the gas flows; the gas passes through the filter unit (2) with the treatment liquid attached on the way. 2 . The gas processing device according to claim 1 , wherein the filter unit ( 2 ) is a revolving body, and the cavity where the filter unit ( 2 ) is located has a filter unit ( 2 ). 3 . 2) Seal the rotating space in the cavity. 3 . The gas treatment device according to claim 2 , wherein the liquid level of the treatment liquid is located between one third and two thirds of the height of the filter unit ( 2 ). 4 . 4 . The gas treatment device according to claim 2 , wherein the filter unit ( 2 ) comprises a frame ( 201 ), and several layers of thin-walled filters are arranged in the frame ( 201 ). 5 . body (200). 5 . The gas treatment device according to claim 4 , wherein the filter unit ( 2 ) is provided with a layer of the filter body ( 200 ), and the filter body ( 200 ) faces the flow direction of the gas. 6 . Raised curved shape. 6 . The gas treatment device according to claim 4 , characterized in that: the filter unit ( 2 ) is provided with multiple layers of the filter bodies ( 200 ) at intervals, and the filter bodies ( 200 ) are arranged between the filter bodies ( 200 ). The space is filled with a filler that can act on the gas. 7. The gas treatment device according to claim 4, wherein the filter body (200) is a porous filter structure body or an adsorbent body. 8. The gas processing device according to claim 7, characterized in that: along the flow direction of the gas, a plurality of the filter units (2) are sequentially and spaced apart in the cavity, and each of the filter units (2) The pores of the filter body (200) on the filter unit (2) are sequentially increased from large to small. 9. The gas processing device according to any one of claims 1-8, characterized in that: the bottom of the casing (1) is configured to communicate with the cavity and to incline downward against the flow of the gas The sedimentation tank (103); the sediment captured or reacted by the treatment liquid slips to the end of the sedimentation tank (103) through the sedimentation tank (103), and can be discharged through the opening at the end mouth discharge. 10 . The gas processing device according to claim 9 , wherein a filling port ( 120 ) is opened on the upper part of the casing ( 1 ), and a The treatment liquid in the cavity constitutes a liquid level detection device for monitoring; the treatment liquid can be filled in an appropriate amount from the filling port (120) according to the change of the liquid level in the cavity, so as to constitute the cavity Maintenance of internal fluid level.

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