CN113440953B - Waste gas environmental protection dust removal mechanical device - Google Patents

Abstract

The invention discloses an exhaust gas environmental protection dust removal mechanical device, which comprises a first dust removal box; the output end of the first dust removal box is connected with a second dust removal box and a purification box; the output end of the second dust removal box is connected with a purification box and a separator; The dehumidifier is connected to the output end of the separator and the output end of the purification box, and the activated carbon adsorption box is connected to the output end of the dehumidifier. The invention can realize the preliminary filtration of the dust soluble in water, reduce the dust content in the waste water, reduce the energy consumption in the later waste water treatment, and reduce the dust content in the waste gas by spraying the waste gas twice, and then pass through the separator The waste gas is separated, and the waste gas containing more dust is passed into the purification box, which reduces the energy consumption during waste gas treatment and achieves the technical effect of energy saving and environmental protection.

Description

A waste gas environmental protection dust removal mechanical device

technical field

The invention relates to the technical field of environmental protection equipment, in particular to an exhaust gas environmental protection dust removal mechanical device.

Background technique

Industrial waste gas refers to the general term for all kinds of pollutant gases that are discharged into the air during fuel combustion and production processes in the factory area. These exhaust gases include: carbon dioxide, carbon disulfide, hydrogen sulfide, fluoride, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (mist) lead mercury, beryllium compounds, smoke and productive dust, which will pollute the air when discharged into the atmosphere. These substances enter the human body through the respiratory tract in different ways, some directly cause harm, and some have a cumulative effect, which will seriously endanger human health. Different substances will have different effects. Therefore, the gas emitted by the industry needs to be treated by an environmental protection dust removal device.

In the prior art, most dedusting equipment adopts the method of spraying water, so that the water contacts the dust in the exhaust gas, and finally realizes the separation of dust and exhaust gas. However, by spraying water, the waste water with dissolved dust will eventually be obtained. Wastewater cannot be discharged at will, and needs to be treated through filtration and other processes. Since there are more dust soluble in water, the energy consumption in the treatment process is relatively large, and the waste gas that has been sprayed with water still contains less dust, which needs to be processed many times. Spraying water to meet the discharge standard will consume a lot of water for dust removal, which is not conducive to environmental protection and energy saving.

Contents of the invention

The purpose of the present invention is to provide a waste gas environmental protection dedusting mechanical device to solve the problems of the above-mentioned prior art, and can realize preliminary filtration of water-soluble dust, reduce the content of dust in waste water, and reduce the energy consumption during later waste water treatment. The waste gas is sprayed with water twice to reduce the dust content in the waste gas, and then the waste gas is separated by a separator, and the waste gas containing more dust is passed into the purification box. On the one hand, the residual dust in the waste gas is removed, and the The content of dust in the exhaust gas can make the exhaust gas meet the emission standard. On the other hand, the exhaust gas can provide tiny bubbles to attach to the surface of the dust, so that the dust floats on the surface of the waste water, which is beneficial to the separation of dust and waste water. The above two aspects reduce the waste gas treatment. The energy consumption at the time has achieved the technical effect of energy saving and environmental protection.

In order to achieve the above object, the present invention provides the following solution: the present invention provides an exhaust gas environmental dust removal mechanical device, including a first dust removal box, the output end of the first dust removal box is connected with a second dust removal box and a purification box, and the first dust removal box The output end of the second dust removal box is communicated with the purification box and the separator, the output end of the separator is communicated with the purification box, the output end of the separator and the output end of the purification box are communicated with a dehumidifier, and the dehumidifier The output end is connected with an activated carbon adsorption box;

The exhaust gas inlet pipe, the first water spray plate, the filter part, and the first air pipe are arranged in sequence from top to bottom in the first dust removal box, and a dust outlet is opened on the side wall of the first dust removal box. The dust outlet is set correspondingly to the filter part; the first dust removal box communicates with the second dust removal box through the first air pipe, the second dust removal box is provided with a second water spray plate, and the first dust removal box is connected with the second dust removal box. An air pipe is located above the second dust removal box;

The filter part includes a filter screen and a cleaning piece, the cleaning piece is located above the filter screen, the filter screen is in sliding contact with the first dust removal box through a vibrating piece, and the cleaning piece is in contact with the first dust removal box Turn to connect.

Preferably, the inner wall of the first dust removal box is provided with a groove, and the vibrating member includes a compression spring, a spring plate, and a push rod arranged sequentially in the groove from bottom to top, and the two ends of the compression spring are respectively connected to the The elastic plate is fixedly connected with the first dust removal box, the top of the ejector rod is fixedly connected with the first dust removal box, the elastic plate is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the filter net .

Preferably, the cleaning member includes a swivel that is rotatably connected to the first dust removal box, a cleaning plate is arranged inside the first dust removal box, the top end of the cleaning plate is fixedly connected to the bottom end of the swivel ring, the A rack is fixedly connected to the side of the swivel away from the cleaning plate, a driving motor is fixedly connected to the outer wall of the first dust removal box, and an output gear is fixedly connected to the output end of the driving motor, and the output gear and the rack engage.

Preferably, the filter screen includes an L-shaped filter screen and an arc-shaped filter screen, the lower end of the L-shaped filter screen is in sliding contact with the first dust removal box, and the higher end of the L-shaped filter screen is in contact with the arc-shaped filter screen. The bottom end of the filter screen is fixedly connected, the L-shaped filter screen is arranged correspondingly to the dust outlet, the connecting rod is fixedly connected to the L-shaped filter screen, and the cleaning plate is located above the L-shaped filter screen.

Preferably, the first water spray plate and the second water spray plate have the same structure, the first water spray plate sprays water toward the arc filter screen, and the second water spray plate sprays water toward the The first air pipe, the first water spray plate and the second water spray plate communicate with a water supply tank, and the water supply tank is located above the first dust removal box.

Preferably, a water collecting funnel is fixedly connected to the first dust removal box, and the water collecting funnel is located between the first water spray plate and the arc-shaped filter screen, and the water outlet of the water collecting funnel is connected to the The corresponding setting of the highest end of the above-mentioned curved filter screen.

Preferably, the separator is a truncated circular structure, and the separator is provided with a second air pipe, a third air pipe, and a fourth air pipe in sequence from bottom to top, and the second air pipe communicates with the purification box, The second air pipe communicates with the second dust removal box, the third air pipe is arranged along a tangential direction of the separator, and the fourth air pipe communicates with the dehumidifier.

Preferably, the bottom of the first dust removal box is connected with a first liquid pipe, and the second dust removal box is connected with a second liquid pipe and a fifth air pipe, and both the first liquid pipe and the second liquid pipe are connected to The purification box is in communication, and the fifth air pipe is in communication with the dehumidifier.

Preferably, the bottom of the purification tank is connected with an inlet end of a water outlet pipe, a heat exchange element is wound around the water outlet pipe, and the water outlet end of the water outlet pipe communicates with the water supply tank.

The invention discloses the following technical effects:

1. By passing the exhaust gas into the first dust removal box and the second dust removal box, the dust content of the exhaust gas is reduced after two water spraying and dust removal, and then the exhaust gas after water spraying and dust removal is passed into the separator, and the air carrying dust descends through the The rest of the air with low dust content meets the discharge conditions and enters the dehumidifier, which is convenient for subsequent discharge. The treatment process is simple and the treatment effect is good.

2. Pass the exhaust gas containing a small amount of dust into the purification box. The purification box is used to collect the waste water produced by two water sprays and dust removal, and pass the waste gas into the waste water. On the one hand, the content of dust in the waste gas is reduced, and on the other hand, the waste gas can be Provide tiny air bubbles to attach to the surface of the dust, so that the dust floats on the surface of the waste water, thereby facilitating the separation of the dust and waste water, both of which reduce the energy consumption during waste gas treatment, and achieve the technical effect of energy saving and environmental protection.

3. By setting a filter part in the first dust removal box, the waste water dissolved in dust is preliminarily filtered through the filter part, and most of the dust is separated to facilitate the subsequent treatment of waste water, and the collected dust is discharged through the cleaning part to the first dust removal The tank reduces the energy consumption of waste water treatment and has strong practicability.

4. By setting the vibrating part, the vibrating part drives the filter screen to change its position under the action of the first water spray plate. When the first water spray plate stops spraying water, the vibrating part returns to its original position. During this process, the filter screen Vibrates up and down in the first dust removal box, so that the dust on the filter screen is separated, and the dust is not easy to block the filter screen, so as to improve the efficiency of waste gas treatment.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without paying creative labor.

Fig. 1 is the structural representation of waste gas environmental protection dedusting mechanical device;

Fig. 2 is a partial enlarged view of place A in Fig. 1;

Fig. 3 is the perspective view of the first dust removal box;

Fig. 4 is the three-dimensional view of filter screen;

Fig. 5 is a schematic diagram of the connection relationship of several first dust removal boxes;

Among them, 1-first dust removal box, 2-second dust removal box, 3-purification box, 4-separator, 5-dehumidifier, 6-activated carbon adsorption box, 7-exhaust gas inlet pipe, 8-first water spray plate . Ring, 18-cleaning plate, 19-rack, 20-drive motor, 21-output gear, 22-L type filter screen, 23-arc filter screen, 24-water supply tank, 25-water collecting funnel, 26-the first Two air pipes, 27-the third air pipe, 28-the fourth air pipe, 29-the first liquid pipe, 30-the second liquid pipe, 31-the fifth air pipe, 32-water outlet pipe, 33-drive pump, 34 - heat exchange box, 35 - heat exchange tubes.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The present invention provides an exhaust gas environment-friendly dust removal mechanism, which includes a first dust removal box 1, the output end of the first dust removal box 1 is connected with a second dust removal box 2 and a purification box 3, and the output end of the second dust removal box 2 is separated from the purification box 3. The separator 4 is connected, the output end of the separator 4 is connected with the purification box 3, the output end of the separator 4 and the output end of the purification box 3 are connected with a dehumidifier 5, and the output end of the dehumidifier 5 is connected with an activated carbon adsorption box 6; the first dust removal box 1 The exhaust gas inlet pipe 7, the first water spray plate 8, the filter part, and the first air pipe 9 are arranged in sequence from top to bottom, and a dust outlet 10 is opened on the side wall of the first dust removal box 1, and the dust outlet 10 is connected with the filter part. Corresponding setting; the first dust removal box 1 communicates with the second dust removal box 2 through the first air pipe 9, the second dust removal box 2 is provided with a second water spray plate 11, and the first air pipe 9 is located above the second dust removal box 2; The filtering part includes a filter screen and a cleaning piece, the cleaning piece is located above the filter screen, the filter screen is in sliding contact with the first dust removal box 1 through the vibrating piece, and the cleaning piece is connected to the first dust removal box 1 in rotation.

Pass the exhaust gas into the first dust removal box 1 through the exhaust gas inlet pipe 7, the first water spray plate 8 works, the first water spray plate 8 sprays water to remove the dust in the exhaust gas, and the waste water with dust is filtered through the filter part to obtain The dust is discharged from the dust outlet 10 by the cleaning part. After the filtration, the waste water with dust falls to the bottom of the first dust removal box 1, and the waste gas enters the second dust removal box 2 through the first air pipe 9, and passes through the second water spray. The plate 11 is dedusted again, and the waste water obtained falls to the bottom of the second dust removal box 2, and the waste gas enters the separator 4, and after being separated by the separator 4, a part of the waste gas containing a large amount of dust descends and enters the purification box 3, and the other part contains The exhaust gas with a small amount of dust rises and enters the dehumidifier 5. At this time, the waste water in the first dust removal box 1 and the second dust removal box 2 enters the purification box 3, and the waste gas with a large amount of dust enters the purification box 3. In the waste water, after the dust in the waste gas is removed from the waste water again, the obtained waste gas enters the dehumidifier 5 for dehumidification, and then enters the activated carbon adsorption box 6 to remove peculiar smell, so as to meet the discharge standard.

In the purification box 3, the tiny air bubbles generated by the waste gas adhere to the surface of the dust, which is convenient for the dust to float up. At the same time, a flocculant can be added to the waste water in the purification box 3. The flocculant concentrates the dust, and the air bubbles produced by the waste gas can be attached to the flocs. , When the flocs float on the wastewater, the flocs are separated from the wastewater, and the treated wastewater can be re-participated in the water spray cycle to reduce water consumption.

To further optimize the scheme, the inner wall of the first dust removal box 1 is provided with a groove 12, and the vibrating element includes a compression spring 13, a spring plate 14, and a push rod 15 which are sequentially arranged in the groove 12 from bottom to top. The plate 14 is fixedly connected to the first dust-removing box 1, the top of the ejector rod 15 is fixedly connected to the first dust-removing box 1, and the elastic plate 14 is fixedly connected to a connecting rod 16, which is fixedly connected to the filter screen. When the first water spray plate 8 sprays water to remove dust, under the pressure of the first water spray plate 8, the filter screen moves downward, the compression spring 13 is compressed, and the spring plate 14 is driven to move down, when the dust collected by the filter screen When the first dust removal box 1 needs to be discharged, the first water spray plate 8 stops spraying water, and the filter screen is no longer under pressure, so the compression spring 13 returns and moves upward for a certain distance. When the top of the spring plate 14 touches the push rod 15 , the ejector rod 15 restricts the movement of the spring plate 14, so the spring plate 14 does multiple reciprocating movements, and the spring plate 14 drives the filter screen to reciprocate multiple times through the connecting rod 16, so that the filter screen produces a vibration effect and will be blocked in the filter screen mesh The dust separation is convenient for the discharge of dust, thereby improving the working efficiency of the exhaust gas treatment device.

To further optimize the scheme, the cleaning part includes a swivel 17 that is rotatably connected to the first dust removal box 1. A cleaning plate 18 is arranged in the first dust removal box 1. The top of the cleaning plate 18 is fixedly connected to the bottom end of the swivel ring 17, and the swivel 17 is away from the cleaning area. A rack 19 is fixedly connected to one side of the plate 18 , a drive motor 20 is fixedly connected to the outer wall of the first dust removal box 1 , and an output gear 21 is fixedly connected to the output end of the drive motor 20 , and the output gear 21 meshes with the rack 19 . The swivel 17 is rotationally connected with the first dust removal box 1 through a bearing (not shown in the figure), and the external drive motor 20 makes the swivel 17 rotate. Rotate in the case 1, thereby clean up the dust on the filter screen, the length setting of cleaning plate 18 does not affect the vibration of filter screen as far as possible. During the exhaust gas treatment process, the dust outlet 10 is closed, and the cleaning part is in a deactivated state. Only when dust needs to be discharged, the dust outlet 10 should be opened and the cleaning part should be activated to remove dust from the first dust removal box 1. . As shown in Figure 5, first its dedusting box 1 can be provided with a plurality of, and a plurality of first dedusting boxes 1 all communicate with the second dedusting box 2 and purification box 3, when cleaning in some first dedusting boxes 1 When the parts are working, the exhaust gas can be passed into other first dust removal boxes 1 to ensure that the exhaust gas treatment process continues.

To further optimize the scheme, the filter screen includes an L-shaped filter screen 22 and an arc-shaped filter screen 23. The lower end of the L-shaped filter screen 22 is in sliding contact with the first dust removal box 1, and the higher end of the L-shaped filter screen 22 is in contact with the bottom of the arc-shaped filter screen 23. The ends are affixed, the L-shaped filter screen 22 is set corresponding to the dust outlet 10, the connecting rod 16 is fixedly connected with the L-shaped filter screen 22, and the cleaning plate 18 is located above the L-shaped filter screen 22. The waste water mixed with dust falls to the curved filter screen 23 and flows on the curved filter screen 23. The waste water flows to the bottom of the first dust removal box 1 through the curved filter screen 23, and the filtered dust falls to the L-shaped filter screen. On the upper surface of the net 22, the dust obtained by filtering accumulates on the upper surface of the L-shaped filter screen 22, and the L-shaped filter screen 22 filters the water contained therein. After the dust is accumulated to a certain degree, the drive motor 20 is opened, and the cleaning plate 18 Rotate to push the accumulated dust out of the first dust removal box 1 through the dust outlet 10 .

Further optimization scheme, the first water spray plate 8 and the second water spray plate 11 have the same structure, the first water spray plate 8 sprays water towards the arc filter screen 23, and the second water spray plate 11 sprays water towards the first air pipe 9 , the first water spray plate 8 and the second water spray plate 11 communicate with a water supply tank 24 , and the water supply tank 24 is located above the first dust removal box 1 . The orientation of the first water spray plate 8 is the same as the flow direction of the exhaust gas. The reason is that the initial waste gas contains more dust. The direction is set in the same direction. In addition, the high-pressure water sprayed by the first water spray plate 8 can provide pressure for the arc filter screen 23, while the water spray direction of the second water spray plate 11 is opposite to the flow direction of the exhaust gas. After the dust is removed, the dust content in the exhaust gas decreases, so the second water spray plate 11 is arranged opposite to the flow direction of the exhaust gas, so that the dust in the exhaust gas is not easy to block the second water spray plate 11, and the second water spray plate 11 can also be more It is good to perform secondary removal of dust in the exhaust gas to improve the dust removal effect, so that the exhaust gas does not need to be sprayed more times, saving water, energy saving and environmental protection.

To further optimize the scheme, a water collecting funnel 25 is fixedly connected to the first dust removal box 1, and the water collecting funnel 25 is located between the first water spray plate 8 and the curved filter screen 23, and the water outlet end of the water collecting funnel 25 is connected to the curved filter screen The highest end of 23 corresponds to the setting. The water collecting funnel 25 is used to collect the waste water produced by the first water spray plate 8. The waste water produced by the first water spray plate 8 is collected through the water collecting funnel 25 and sprayed to the highest end of the curved filter screen 23. On the one hand, a large amount of waste water is collected by the water collecting funnel 25 The less output end of water collecting funnel 25 is ejected, is convenient to the decline of arc filter screen 23, on the other hand, waste water can flow in the L-shaped filter screen 22 at the highest end of arc filter screen 23, and waste water is in arc filter screen 23. The flow time on the net 23 is longer, which is beneficial to the filtration and separation of waste water.

Further optimization scheme, the separator 4 is a circular truncated structure, the separator 4 is provided with a second air pipe 26, a third air pipe 27, and a fourth air pipe 28 in sequence from bottom to top, and the second air pipe 26 communicates with the purification box 3, The second air pipe 26 communicates with the second dust removal box 2 , and the third air pipe 27 is arranged along the tangential direction of the separator 4 , and the fourth air pipe 28 communicates with the dehumidifier 5 . The exhaust gas filtered by the secondary water spray enters the separator 4 through the third air pipe 27 along the tangential direction of the separator 4, the exhaust gas rotates in the separator 4, and the dust in the exhaust gas is filtered and separated again by the separator 4. At this time, The quality of the dust is greatly reduced and enters the purification box 3 through the second air pipe 26, and the quality of the remaining waste gas rises slightly, and rises to the dehumidifier 5 through the fourth air pipe 28, and the waste gas containing dust passes through the purification box 3. After the waste water is filtered, it enters the dehumidifier 5 through the fourth air pipe 28 for dehumidification, and then completes the dust filtering operation.

Further optimization scheme, the first liquid pipe 29 communicates with the bottom of the first dust removal box 1, the second liquid pipe 30 and the fifth air pipe 31 communicate with the second dust removal box 2, the first liquid pipe 29 and the second liquid pipe 30 are connected with The purification box 3 communicates, and the fifth air pipe 31 communicates with the dehumidifier 5 . The function of the first liquid pipe 29 and the second liquid pipe 30 is to transfer waste water. It should be noted that a drive pump 33 is provided on each air pipe and liquid pipe to provide power for the flow of waste water and waste gas. In addition, a control valve and a controller are provided to control the driving pump 33 .

To further optimize the scheme, the bottom of the purification tank 3 is connected to the water inlet end of the water outlet pipe 32 , the water outlet pipe 32 is wound with a heat exchange element, and the water outlet end of the water outlet pipe 32 is connected to the water supply tank 24 . The filtered waste water is discharged through the outlet pipe 32 and enters the water supply tank 24 .

The heat exchange element includes a heat exchange box 34 and a heat exchange pipe 35 , and the heat exchange pipe 35 is wound on the water outlet pipe 32 . Since the filtered water contains a lot of heat, heat exchange parts can be set to exchange heat for the water. The heat exchange parts can choose air heat exchange or liquid heat exchange according to actual use, so as to use a large amount of heat in the water and at the same time provide water The water flowing in the tank 24 is cooled to facilitate the continuous utilization of water.

working principle:

Pass the exhaust gas into the first dust removal box 1 through the exhaust gas inlet pipe 7, the first water spray plate 8 works, the first water spray plate 8 sprays water to remove the dust in the exhaust gas, and the waste water with dust falls to the curved filter screen 23 Up, the arc-shaped filter screen 23 moves downward, the waste water falls to the bottom of the first dust removal box 1, the filtered dust enters the L-shaped filter screen 22, and the waste gas enters the second dust removal box 2 through the first air pipe 9, and passes through the second dust removal box 2. The second water spray plate 11 removes dust again, and the waste water obtained falls to the bottom of the second dust removal box 2, and the waste gas enters the separator 4, and after being separated by the separator 4, a part of the waste gas containing a large amount of dust descends and enters the purification box 3. The other part of the waste gas with a small amount of dust rises and enters the dehumidifier. At this time, the waste water in the first dust removal box 1 and the second dust removal box 2 enters the purification box 3, and the waste gas with a large amount of dust enters the purification box 3 In the waste water in the waste water, after the dust in the waste gas is removed from the waste water again, the waste gas obtained enters the dehumidifier 5 for dehumidification, and then enters the activated carbon adsorption box 6 to remove peculiar smell, so as to meet the discharge standard.

After the device has been running for a period of time, the waste gas inlet pipe 7 provides air intake, the first water spray plate 8 stops spraying water, and the compression spring 13 drives the filter to vibrate. After the filter stops vibrating, the dust outlet 10 is opened and the drive motor 20 is started. , the cleaning plate 18 moves, and the dust is discharged from the dust outlet 10. After the discharge is completed, the device is restarted for waste gas treatment.

In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or It should not be construed as limiting the invention by implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation.

The above-mentioned embodiments are only to describe the preferred mode of the present invention, not to limit the scope of the present invention. Without departing from the design spirit of the present invention, those skilled in the art may make various Variations and improvements should fall within the scope of protection defined by the claims of the present invention.

Claims (3)

1. A waste gas environmental protection dust removal mechanical device is characterized in that, comprises the first dust removal box (1), and the output end of the first dust removal box (1) is communicated with the second dust removal box (2) and the purification box (3), The output end of the second dust removal box (2) is in communication with the purification box (3) and the separator (4), the output end of the separator (4) is in communication with the purification box (3), and the separator (4) the output end and the output end of the purification box (3) are connected with a dehumidifier (5), and the output end of the dehumidifier (5) is connected with an activated carbon adsorption box (6); The first dust removal box (1) is provided with an exhaust gas inlet pipe (7), a first water spray plate (8), a filter part, and a first air pipe (9) sequentially from top to bottom, and the first dust removal box (1) A dust outlet (10) is opened on the side wall, and the dust outlet (10) is arranged corresponding to the filter part; the first dust removal box (1) passes through the first air pipe (9) It communicates with the second dust removal box (2), the second water spray plate (11) is arranged in the second dust removal box (2), and the first air pipe (9) is located in the second dust removal box ( 2) above; The filtering part includes a filter screen and a cleaning piece, the cleaning piece is located above the filter screen, the filter screen is in sliding contact with the first dust removal box (1) through a vibrating piece, and the cleaning piece is in contact with the first dust removal box (1). A dust removal box (1) is rotatably connected; The inner wall of the first dust removal box (1) is provided with a groove (12), and the vibrating element includes a compression spring (13), a spring plate (14), Push rod (15), the two ends of the compression spring (13) are fixedly connected with the elastic plate (14) and the first dust removal box (1) respectively, and the top end of the push rod (15) is connected with the first The dust removal box (1) is fixedly connected, and a connecting rod (16) is fixedly connected on the spring plate (14), and the connecting rod (16) is fixedly connected with the filter screen; The separator (4) is a truncated circular structure, and the separator (4) is sequentially provided with a second air pipe (26), a third air pipe (27), and a fourth air pipe (28) from bottom to top. The second air pipe (26) is in communication with the purification box (3), the third air pipe (27) is in communication with the second dust removal box (2), and the third air pipe (27) is along the The separator (4) is arranged in a tangential direction, and the fourth air pipe (28) communicates with the dehumidifier (5); The cleaning member includes a swivel (17) rotatably connected to the first dust removal box (1), and a cleaning plate (18) is arranged inside the first dust removal box (1), and the top end of the cleaning plate (18) It is affixed to the bottom end of the swivel (17), the side of the swivel (17) away from the cleaning plate (18) is affixed with a rack (19), and the outer wall of the first dust removal box (1) A drive motor (20) is fixedly connected, an output gear (21) is fixedly connected to the output end of the drive motor (20), and the output gear (21) meshes with the rack (19); The filter screen includes an L-shaped filter screen (22) and an arc-shaped filter screen (23), the lower end of the L-shaped filter screen (22) is in sliding contact with the first dust removal box (1), and the L-shaped filter screen (22) is in sliding contact with the first dust box (1). The higher end of the filter screen (22) is affixed to the bottom end of the arc-shaped filter screen (23), the L-shaped filter screen (22) is arranged correspondingly to the dust outlet (10), and the connecting rod (16) Fixedly connected with the L-shaped filter screen (22), the cleaning plate (18) is located above the L-shaped filter screen (22); The first water spray plate (8) and the second water spray plate (11) have the same structure, and the first water spray plate (8) sprays water towards the arc-shaped filter screen (23), and the second water spray plate (8) The water spray direction of the two water spray plates (11) is towards the first air pipe (9), and the first water spray plate (8) and the second water spray plate (11) are connected with a water supply tank (24), The water supply tank (24) is located above the first dust removal tank (1); A water collecting funnel (25) is fixedly connected to the first dust removal box (1), and the water collecting funnel (25) is located between the first water spray plate (8) and the curved filter screen (23). Between, the water outlet end of the water collecting funnel (25) is set corresponding to the highest end of the curved filter screen (23). 2. The exhaust gas environmental protection dust removal mechanical device according to claim 1, characterized in that: the bottom of the first dust removal box (1) is connected with a first liquid pipe (29), and the second dust removal box (2) is connected with a The second liquid pipe (30) and the fifth air pipe (31), the first liquid pipe (29) and the second liquid pipe (30) are all communicated with the purification box (3), the fifth The air pipe (31) communicates with the dehumidifier (5). 3. The exhaust gas environmental protection and dust removal mechanical device according to claim 1, characterized in that: the bottom of the purification box (3) is connected to the water inlet end of the water outlet pipe (32), and the water outlet pipe (32) is surrounded by a replacement As for the heating element, the water outlet end of the water outlet pipe (32) communicates with the water supply tank (24).

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