An environmental protection filtering device for straw burning waste gas

Abstract

The present invention discloses an environmental protection filtering device for straw burning waste gas, specifically relating to the technical field of filtering. It includes a housing. A first cooling component is fixedly connected to the upper left side of the housing. An air inlet is provided at the bottom right end of the housing. An air outlet hole is provided on the left side of the rear part of the housing. A transmission component is fixedly connected to the left side of the housing. A filtering component is fixedly connected to the right part of the inner cavity of the housing. For the environmental protection filtering device for straw burning waste gas of the present invention, by setting the first cooling component and the filtering component to cooperate, the efficiency of flue gas treatment can be effectively improved. The first cooling component first reduces the temperature of the flue gas, causing the solid particles in the flue gas to agglomerate, reducing the corrosion and wear of the filtering component while improving the filtering efficiency, enabling the filtering component to more easily remove the particulate matter in the cooled flue gas, ensuring that the emissions meet the environmental protection standards. Further, the cooperation of the two not only enhances the pollutant removal effect, but also optimizes the operation safety and service life of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of filtration, and particularly relates to an environmental protection filtration device for waste gas from straw burning. Background Art

[0002] Straw burning is a common way to deal with farm waste. However, with the increase in burning behavior, a large amount of harmful gases generated in the burning flue gas pose a serious threat to air quality and human health. Especially during the burning process, the flue gas temperature is relatively high, and the pollutant concentration in the flue gas is relatively high. Without effective treatment means, these pollutants will be directly discharged into the atmosphere, resulting in aggravated environmental pollution. In order to reduce the pollution of straw burning flue gas, traditional treatment methods mostly rely on filtration devices, such as bag filters or electrostatic precipitators, etc., to remove solid particulate matter in the flue gas. However, these filtration devices are easily corroded and damaged under high-temperature flue gas, resulting in unsatisfactory treatment effects and high maintenance costs. Therefore, the cooling treatment of high-temperature flue gas has become the key to improving the flue gas treatment effect.

[0003] Chinese Patent Publication No. CN113813716A discloses an environmental protection filtration device for waste gas from straw burning, including an air outlet pipe fixedly connected to the top of a box body, an exhaust gas inlet pipe fixedly connected to the inner wall of the box body, a motor fixedly connected to the top of the inner wall of the box body, a rotating rod fixedly connected to one end of the motor, a flow guide plate fixedly connected to the inner wall of the box body, and a stirring, mixing and swinging mechanism arranged inside the box body. Through the above-mentioned stirring, mixing and swinging mechanism, the magnet push block will be rebounded by the small elastic strip to make the swinging plate rotate up and down reciprocally inside the box body, so as to make the water inside the box body be stirred by the reciprocating rotation of the swinging plate. Under the horizontal stirring of the stirring rod, the fusion efficiency of the dust residues wrapped in the air and the water is further improved, and then it is ensured that the air in the water can be reciprocally dispersed. When discharged from the air outlet pipe, the cleanliness of the air can be guaranteed; however, the following defects still exist in the implementation process:

[0004] In the implementation process of the above-mentioned patent document, although the purification efficiency of the waste gas is improved through the fusion effect of the stirring, mixing and swinging mechanism and water, there are still certain deficiencies in terms of cooling. The high temperature in the flue gas limits the cooling efficiency of water, and it may not be able to effectively reduce the flue gas temperature in a short time, affecting the subsequent filtration and treatment effects. Summary of the Invention

[0005] The main purpose of the present invention is to provide an environmental protection filtration device for waste gas from straw burning, which can effectively solve the problem that the above device has unsatisfactory cooling effect on the waste gas from straw burning.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A straw burning waste gas environmental protection filtering device comprises a shell, a cooling component is fixedly connected to the upper left side of the shell, an air inlet is opened at the bottom of the right end of the shell, an air outlet is opened at the left rear portion of the shell, a transmission component is fixedly connected to the left side of the shell, and a filtering component is fixedly connected to the right part of the shell inner cavity.

[0008] Preferably, the transmission component includes a connecting pipe 1, a cooling component 2 is fixedly connected to the middle of the outer surface of the connecting pipe 1, a water pump is fixedly connected to the upper part of the connecting pipe 1, a connecting pipe 2 is fixedly connected to the output end of the water pump, and the other end of the connecting pipe 2 is connected to the inner cavity of the cooling component 1.

[0009] Preferably, the cooling component 2 includes a fixing plate 2, the right side of the fixing plate 2 is fixedly connected to the left side of the shell, the left side of the fixing plate 2 is fixedly connected to a connecting block, the left side of the connecting block is fixedly connected to a semiconductor refrigeration plate, and the left side of the semiconductor refrigeration plate is provided with a plurality of heat dissipation fins.

[0010] Preferably, the cooling component 1 includes a motor, the output end of the motor is fixedly connected to a rotating component through a coupling, the outer surface of the rotating component is rotatably connected to an arc block, the upper end of the arc block is fixedly connected to the left side of the upper end of the shell, the bottom of the outer surface of the rotating component is rotatably connected to a water storage disk, the left side of the outer surface of the water storage disk is connected to connecting pipe 2, the bottom end of the rotating component is fixedly connected to connecting rod 2, the outer surface of the connecting rod 2 is fixedly connected to a spiral plate, the bottom end of the connecting rod 2 is fixedly connected to bevel gear 2, and a blocking block is fixedly connected to the middle of the left side of the shell.

[0011] Preferably, the rotating assembly includes a transmission rod 1, the bottom end of which is fixedly connected to a connecting block, the bottom end of the connecting block is fixedly connected to the upper end of a connecting rod 2, and a water inlet hole is provided on the outer surface of the connecting rod 2.

[0012] Preferably, the inner cavity of the water storage disc is communicated with the inner cavity of the spiral plate through a water inlet hole, and the outer surface of the water storage disc is fixedly connected to the inner cavity of the shell.

[0013] Preferably, the filter assembly includes a bidirectional threaded rod, the left end of the bidirectional threaded rod is fixedly connected to a bevel gear, the outer surface of the bidirectional threaded rod is rotatably connected to an isolation plate, the middle part of the right side of the isolation plate is fixedly connected to a fixed plate, the bottom end of the fixed plate is fixedly connected to a plurality of sliding assemblies, the right side of the outer surface of the bidirectional threaded rod is threadedly connected to a toggle plate, and the toggle plate is slidably connected to a connecting rod on both the front and rear sides.

[0014] Preferably, the bottom end of the isolation plate is fixedly connected to the shell, and the right ends of the two connecting rods are fixedly connected to the inner cavity of the shell.

[0015] Preferably, the sliding component includes a mating ball. A filter bag is fixedly connected to the upper end of the mating ball. Two symmetrically arranged sliding blocks are fixedly connected to the bottom of the outer surface of the filter bag. A spring is fixedly connected to the upper end of the filter bag, and the upper end of the spring is fixedly connected to a mating component.

[0016] Preferably, the mating component includes a second housing. A plurality of air permeable grooves are formed in the outer surface of the second housing. A sliding groove matching with the two sliding blocks is formed in the inner surface of the second housing. A fixing ring is fixedly connected to the upper end of the second housing, and the bottom end of the fixing ring is fixedly connected to the upper part of the spring.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By arranging the first cooling component to cooperate with the filtering component, the efficiency of flue gas treatment can be effectively improved. The first cooling component first reduces the temperature of the flue gas, so that the solid particles in the flue gas coagulate, reducing the corrosion and wear of the filtering component and improving the filtering efficiency at the same time, making it easier for the filtering component to remove the particulate matter in the cooled flue gas and ensuring that the emissions meet the environmental protection standards. Further, the cooperation of the two not only enhances the pollutant removal effect, but also optimizes the operation safety of the equipment and extends the service life.

[0019] By arranging the spiral plate, during the process of being driven by the motor to rotate, the water in the inner cavity of the water storage disc can enter the inner cavity of the spiral plate. After the water enters the inner cavity of the spiral plate, the bottom of the spiral plate contacts the hot gas, and the high heat capacity of the water can quickly absorb the heat in the hot gas, thereby effectively reducing the temperature of the flue gas, and the heat exchange effect of the water further improves the cooling efficiency.

[0020] Further, the rotating spiral plate will increase the residence time of the incineration waste gas, enabling the flue gas to be fully cooled at this position, giving full play to the cooling and heat exchange functions, thereby reducing the temperature of the flue gas and providing ideal temperature conditions for subsequent processes such as filtration and desulfurization. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the overall structure of another perspective of the present invention;

[0023] Figure 3 is a cross-sectional view of the overall structure of the present invention;

[0024] Figure 4 is a schematic diagram of the overall structure of the transmission component of the present invention;

[0025] Figure 5 is a schematic diagram of the overall structure of the first cooling component of the present invention;

[0026] Figure 6 It is a schematic diagram of a part of the structure of the cooling assembly of the present invention;

[0027] Figure 7 For the present invention Figure 6 A schematic diagram of the structure enlargement at point A;

[0028] Figure 8 It is a schematic diagram of the overall structure of the filter assembly of the present invention;

[0029] Figure 9 It is a schematic diagram of the overall structure of the sliding assembly of the present invention;

[0030] Figure 10 It is a schematic diagram of the overall structure of the matching components of the present invention.

[0031] In the figure: 1, housing; 2, air inlet; 3, filter assembly; 31, bidirectional threaded rod; 32, bevel gear 1; 33, isolation plate; 34, connecting rod 1; 35, toggle plate; 36, sliding assembly; 361, matching ball; 362, sliding block; 363, filter bag; 364, spring; 365, matching assembly; 3651, housing 2; 3652, air vent; 3653, fixing ring; 3654, sliding groove; 37, fixing plate 1; 4, cooling assembly 1; 41 , motor; 42, arc block; 43, rotating assembly; 431, transmission rod one; 432, connecting block; 433, water inlet hole; 44, water storage disc; 45, connecting rod two; 46, spiral plate; 47, bevel gear two; 48, blocking block; 5, transmission assembly; 51, connecting pipe one; 52, cooling assembly two; 521, fixing plate two; 522, connecting block; 523, semiconductor refrigeration plate; 524, heat sink fins; 53, water pump; 54, connecting pipe two; 6, air outlet. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] For example, see Figure 1 , Figure 2 and Figure 3 As shown, a straw burning waste gas environmental protection filtering device includes a shell 1, a cooling component 4 is fixedly connected to the upper left side of the shell 1, an air inlet 2 is opened at the bottom of the right end of the shell 1, an air outlet 6 is opened at the left rear portion of the shell 1, a transmission component 5 is fixedly connected to the left side of the shell 1, and a filtering component 3 is fixedly connected to the right part of the inner cavity of the shell 1.

[0034] In the implementation process, first, the air outlet 6 of this device needs to be connected to the flue gas at the straw burning site. Secondly, the air inlet 2 is connected to the subsequent flue gas treatment equipment. Further, the control panel set in the middle of the front end of the housing 1 is adjusted. As a result, the control panel will start the power sources inside the first cooling component 4 and the transmission component 5. Subsequently, the power source inside the transmission component 5 will pump out the cooling water. Then, through cooperation with the first cooling component 4, the flue gas from straw burning is cooled, making the subsequent flue gas treatment of desulfurization, denitrification, and dust removal more efficient. Further, the flue gas treated by the first cooling component 4 will enter the filtering component 3. Thus, the filtering component 3 will cooperate with the internal components of the first cooling component 4 to filter the treated flue gas, enabling the improvement of the effects of these treatment processes during subsequent desulfurization and denitrification of the flue gas. Moreover, the cooled flue gas is more likely to react with the adsorbent and chemical agents, thereby reducing the concentration of harmful gases.

[0035] In addition, it should be noted that the above-mentioned control panel is a conventional setting in the prior art. In this solution, only its controllable function is utilized, and its working principle and circuit connection are not elaborated in detail.

[0036] Furthermore, by setting the cooperation between the first cooling component 4 and the filtering component 3, the efficiency of flue gas treatment can be effectively improved. The first cooling component 4 first reduces the temperature of the flue gas, causing the solid particles in the flue gas to agglomerate, reducing the corrosion and wear of the filtering equipment, and simultaneously improving the filtering efficiency. The filtering component 3 further removes the particulate matter, harmful gases, and pollutants in the cooled flue gas to ensure that the emissions meet the environmental protection standards. The cooperation of the two not only enhances the pollutant removal effect but also optimizes the operation safety of the equipment, extends its service life, and improves the overall energy utilization efficiency.

[0037] For further reference Figure 3 and Figure 4 As shown, the transmission component 5 includes a first connecting pipe 51. A second cooling component 52 is fixedly connected to the middle of the outer surface of the first connecting pipe 51. A water pump 53 is fixedly connected to the upper part of the first connecting pipe 51. The output end of the water pump 53 is fixedly connected to a second connecting pipe 54. The other end of the second connecting pipe 54 communicates with the inner cavity of the first cooling component 4. The second cooling component 52 includes a second fixing plate 521. The right side of the second fixing plate 521 is fixedly connected to the left side of the housing 1. A connecting block 522 is fixedly connected to the left side of the second fixing plate 521. A semiconductor refrigeration plate 523 is fixedly connected to the left side of the connecting block 522. A plurality of heat dissipation fins 524 are arranged on the left side of the semiconductor refrigeration plate 523.

[0038] During this implementation process, after the operator adjusts the parameters of the control panel in the middle of the front end of the housing 1, the control panel will control the water pump 53 to start, so that the first connecting pipe 51 can extract the water at the bottom left of the housing 1. The extracted water will pass through the fixing plate two 521 and the semiconductor cooling plate 523 fixedly connected by the connecting block 522 to cool the water inside the first connecting pipe 51, so that the water entering the first cooling component 4 through the second connecting pipe 54 has a cooling effect. Thus, the semiconductor cooling plate 523 transfers heat to the air through a number of heat dissipation fins 524, so as to ensure that the water entering the inner cavity of the first cooling component 4 each time can continuously cool the flue gas of straw burning;

[0039] Further, it should be noted that: both the water pump 53 and the semiconductor cooling plate 523 mentioned above are conventional designs in the prior art. The working principle of the water pump 53 is as follows: when the pump starts, the motor drives the impeller to rotate. The rotation of the impeller generates centrifugal force, causing water to be sucked in from the inlet of the pump and accelerating towards the outlet of the pump. During this process, the speed of the water flow increases and the pressure rises, and finally the water is sent to the target position. Specifically, the pump sucks the liquid from the low-pressure area into the pump body through the high-speed rotation of the impeller, and then discharges it through the high-pressure area, thus completing the process of transporting the cooling water. Here, no more elaboration will be made on its circuit connection;

[0040] Furthermore, the working principle of the semiconductor cooling plate 523 is as follows: when an electric current passes through the contact point composed of two different materials, one side of the contact point will absorb heat and become cold, while the other side will release heat and become hot. Specifically, when an electric current passes through the semiconductor cooling plate 523, the carriers flow between different semiconductor materials, resulting in heat absorption on one side to produce a refrigeration effect, and heat release on the other side. By controlling the magnitude and direction of the electric current, the temperature difference can be adjusted, thus achieving the effect of cooling or heating. Here, no more elaboration will be made on its circuit connection;

[0041] Further, it should be noted that: a filter plate is provided at the water extraction point at the bottom of the first connecting pipe 51. Thus, during the process of the first connecting pipe 51 extracting the water at the bottom left of the housing 1, the filter plate can block larger dust. When too much dust accumulates at the filter plate, an alarm will be sent to the control panel at the front of the housing 1 through the sensor, so that the operator can clean it;

[0042] Further, in this solution, by cooperating with the first connecting pipe 51 fixedly connected to the input end of the water pump 53 of the semiconductor refrigeration plate 523, the water temperature can be effectively controlled. When the water pump 53 extracts the water in the left part of the inner cavity of the housing 1 through the first connecting pipe 51, the pump machine guides the water to the area of the semiconductor refrigeration plate 523. The semiconductor refrigeration plate 523 reduces the water temperature through the Peltier effect, so as to achieve the purpose of cooling the waste gas from straw burning. In this way, the continuously circulating water of the pump machine can be maintained at a lower temperature, effectively reducing the temperature of the waste gas, reducing the concentration of harmful substances in the flue gas, improving the treatment efficiency of the subsequent filtering device, and ensuring the environmental protection effect.

[0043] Further, please refer to Figure 5 , Figure 6 and Figure 7 As shown, the first cooling component 4 includes a motor 41. The output end of the motor 41 is fixedly connected with a rotating component 43 through a coupling. An arc-shaped block 42 is rotatably connected to the outer surface of the rotating component 43. The upper end of the arc-shaped block 42 is fixedly connected to the left side of the upper end of the housing 1. A water storage disc 44 is rotatably connected to the bottom of the outer surface of the rotating component 43. The left side of the outer surface of the water storage disc 44 communicates with the second connecting pipe 54. The bottom end of the rotating component 43 is fixedly connected with a second connecting rod 45. A spiral plate 46 is fixedly connected to the outer surface of the second connecting rod 45. The bottom end of the second connecting rod 45 is fixedly connected with a second bevel gear 47. A blocking block 48 is fixedly connected to the middle of the left side of the housing 1. The rotating component 43 includes a first transmission rod 431. The bottom end of the first transmission rod 431 is fixedly connected with a communicating block 432. The bottom end of the communicating block 432 is fixedly connected with the upper end of the second connecting rod 45. Water inlet holes 433 are formed in the outer surface of the second connecting rod 45. The inner cavity of the water storage disc 44 communicates with the inner cavity of the spiral plate 46 through the water inlet holes 433. The outer surface of the water storage disc 44 is fixedly connected with the inner cavity of the housing 1.

[0044] In this implementation process, after the flue gas after straw burning enters, the control panel installed in the front part of the housing 1 will control the motor 41 to start. Thus, the motor 41 will drive the rotating component 43 to rotate through the coupling. During the rotation of the rotating component 43, since the communicating block 432 at the bottom is fixedly connected with the second connecting rod 45, the second connecting rod 45 can drive the spiral plate 46 fixedly connected to its outer surface to rotate. Thus, when the second connecting pipe 54 transports the cooling water to the inner cavity of the water storage disc 44, the cooling water can enter the inside of the spiral plate 46 through the communicating block 432. Then, the water inside the spiral plate 46 will flow into the inner cavity of the spiral plate 46, so that the cooling water can flow towards the bottom of the housing 1;

[0045] Further, during the process of treating the flue gas after straw burning, according to the principle of thermal expansion, when air is heated, the molecular activity increases and the volume expands, resulting in a decrease in the density of the air. Since the hot air with a lower density is lighter than the surrounding colder air, it will be affected by buoyancy and rise to the upper part of the air. At this time, the motor 41 drives the connecting rod two 45 to rotate through the rotating assembly 43, and when the connecting rod two 45 rotates, it will drive the spiral plate 46 fixedly connected to its outer surface to move the flue gas downward, thereby increasing the residence time of the hot air at the position of the spiral plate 46, so as to fully cool the hot air, so that the temperature of the hot air can be more fully reduced, providing more suitable temperature conditions for subsequent treatment processes such as filtration and desulfurization;

[0046] Further, it should be noted that: the motor 41 mentioned above is a conventional design in the prior art, and its working principle is: when an electric current passes through the coil of the motor, a magnetic field will be generated around it. This magnetic field interacts with the magnetic field of the permanent magnet or electromagnet inside the motor to generate a torque. According to Ampere's law, the mutual relationship between the direction of the electric current and the direction of the magnetic field determines that the coil will generate a rotational force in the magnetic field, thereby driving the rotation of the motor shaft. By changing the direction of the electric current or the direction of the electromagnetic field, the rotational speed and rotation direction of the motor can be controlled to achieve mechanical motion. Here, the circuit connection is not elaborated too much;

[0047] Further, during the process of the spiral plate 46 being driven to rotate by the motor 41, the water in the inner cavity of the water storage disc 44 can enter the inner cavity of the spiral plate 46. After the water enters the inner cavity of the spiral plate 46, the bottom of the spiral plate 46 contacts the hot air. The high heat capacity of the water can quickly absorb the heat in the hot air, thereby effectively reducing the temperature of the flue gas. The heat exchange effect of the water further improves the cooling efficiency. The rotating spiral plate 46 will increase the residence time of the incineration waste gas, enabling the flue gas to be fully cooled at this position, giving full play to the cooling and heat exchange effects, thereby reducing the temperature of the flue gas and providing ideal temperature conditions for subsequent processes such as filtration and desulfurization.

[0048] Embodiment 2. In this embodiment, on the basis of Embodiment 1, the cooled waste gas is further filtered. Specifically, please refer to Figure 8 、 Figure 9 、 Figure 10As shown, the filter assembly 3 includes a bidirectional threaded rod 31, the left end of the bidirectional threaded rod 31 is fixedly connected to a bevel gear 32, the outer surface of the bidirectional threaded rod 31 is rotatably connected to an isolation plate 33, the middle part of the right side of the isolation plate 33 is fixedly connected to a fixed plate 37, the bottom end of the fixed plate 37 is fixedly connected to a plurality of sliding assemblies 36, the right side of the outer surface of the bidirectional threaded rod 31 is threadedly connected to a toggle plate 35, the front and rear sides of the toggle plate 35 are slidably connected to a connecting rod 34, the bottom end of the isolation plate 33 is fixedly connected to the shell 1, the right ends of the two connecting rods 34 are fixedly connected to the inner cavity of the shell 1, the sliding assembly 36 includes a matching ball 361, and the matching ball A filter bag 363 is fixedly connected to the upper end of 361, and two symmetrically arranged sliding blocks 362 are fixedly connected to the bottom of the outer surface of the filter bag 363. A spring 364 is fixedly connected to the upper end of the filter bag 363, and a matching component 365 is fixedly connected to the upper end of the spring 364. The matching component 365 includes a second shell 3651. A plurality of air-permeable grooves 3652 are provided on the outer surface of the second shell 3651, and a sliding groove 3654 matching the two sliding blocks 362 is provided on the inner surface of the second shell 3651. A fixing ring 3653 is fixedly connected to the upper end of the second shell 3651, and the bottom end of the fixing ring 3653 is fixedly connected to the upper part of the spring 364.

[0049] Specifically, in the present implementation process, the bevel gear 2 47 fixedly connected to the bottom end of the connecting rod 2 45 will mesh with the bevel gear 1 32, thereby driving the bidirectional threaded rod 31 to rotate, so that during the rotation of the bidirectional threaded rod 31, the bidirectional threaded rod 31 arranged on the outer surface can drive the toggle plate 35 to move left and right, and during the left and right movement of the toggle plate 35, the upper part of the toggle plate 35 cooperates with the matching ball 361, so that the filter bag 363 can move up and down, and during the up and down movement of the filter bag 363, it will cooperate with a number of balls arranged inside the matching component 365, so that larger particles on the inner surface of the filter bag 363 can fall into the bottom of the filter bag 363, so as to filter them, and when the toggle plate 35 is separated from the matching ball 361, the filter bag 363 will be reset due to the self-rebound downward of the spring 364 fixedly connected to the upper part, so as to facilitate the next vibration;

[0050] It should be noted that when the dust inside the filter bag 363 accumulates to a certain extent, an alarm will be sent to the housing 1. At this time, the operator can open the plate on the left side of the upper part of the housing 1 to clean the dust inside it so that it can be used next time;

[0051] Furthermore, by arranging a plurality of ball bearings inside the second shell 3651 to cooperate with the outer surface of the filter bag 363, the toggle plate 35 can squeeze the dust inside the filter bag 363 when cooperating with the cooperating ball 361, so that the dust inside the filter bag 363 falls to the bottom of the filter bag 363, thereby avoiding dust clogging and affecting its filtering effect.

[0052] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A straw burning waste gas environmental filtering device, comprising a housing (1), characterized in that: A cooling component (4) is fixedly connected to the upper left side of the shell (1); an air inlet (2) is provided at the bottom right end of the shell (1); an air outlet (6) is provided at the left rear portion of the shell (1); a transmission component (5) is fixedly connected to the left side of the shell (1); and a filter component (3) is fixedly connected to the right side of the inner cavity of the shell (1); The filter assembly (3) comprises a bidirectional threaded rod (31), the left end of the bidirectional threaded rod (31) is fixedly connected to a bevel gear (32), the outer surface of the bidirectional threaded rod (31) is rotatably connected to an isolation plate (33), the middle part of the right side of the isolation plate (33) is fixedly connected to a fixed plate (37), the bottom end of the fixed plate (37) is fixedly connected to a plurality of sliding assemblies (36), the right side of the outer surface of the bidirectional threaded rod (31) is threadedly connected to a toggle plate (35), and the toggle plate (35) is slidably connected to a connecting rod (34) at both the front and rear sides; The sliding assembly (36) comprises a matching ball (361), the upper end of the matching ball (361) is fixedly connected to a filter bag (363), the bottom of the outer surface of the filter bag (363) is fixedly connected to two symmetrically arranged sliding blocks (362), the upper end of the filter bag (363) is fixedly connected to a spring (364), and the upper end of the spring (364) is fixedly connected to a matching assembly (365); The mating component (365) comprises a second shell (3651), the outer surface of the second shell (3651) is provided with a plurality of venting grooves (3652), the inner surface of the second shell (3651) is provided with a sliding groove (3654) mating with two sliding blocks (362), the upper end of the second shell (3651) is fixedly connected to a fixing ring (3653), and the bottom end of the fixing ring (3653) is fixedly connected to the upper part of the spring (364).

2. The environmental protection filtering device for waste gas from straw burning according to claim 1 is characterized in that: The transmission component (5) comprises a connecting pipe 1 (51), a cooling component 2 (52) is fixedly connected to the middle of the outer surface of the connecting pipe 1 (51), a water pump (53) is fixedly connected to the upper part of the connecting pipe 1 (51), an output end of the water pump (53) is fixedly connected to a connecting pipe 2 (54), and the other end of the connecting pipe 2 (54) is in communication with the inner cavity of the cooling component 1 (4).

3. The environmental protection filtering device for waste gas from straw burning according to claim 2 is characterized in that: The second cooling component (52) comprises a second fixing plate (521), the right side of the second fixing plate (521) is fixedly connected to the left side of the shell (1), the left side of the second fixing plate (521) is fixedly connected to a connecting block (522), the left side of the connecting block (522) is fixedly connected to a semiconductor refrigeration plate (523), and the left side of the semiconductor refrigeration plate (523) is provided with a plurality of heat dissipation fins (524).

4. The environmental protection filtering device for waste gas from straw burning according to claim 1 is characterized in that: The cooling component 1 (4) comprises a motor (41), the output end of the motor (41) is fixedly connected to a rotating component (43) via a coupling, the outer surface of the rotating component (43) is rotatably connected to an arc block (42), the upper end of the arc block (42) is fixedly connected to the left side of the upper end of the shell (1), the bottom of the outer surface of the rotating component (43) is rotatably connected to a water storage disc (44), the left side of the outer surface of the water storage disc (44) is connected to the second connecting pipe (54), the bottom end of the rotating component (43) is fixedly connected to a second connecting rod (45), the outer surface of the second connecting rod (45) is fixedly connected to a spiral plate (46), the bottom end of the second connecting rod (45) is fixedly connected to a second bevel gear (47), and the middle part of the left side of the shell (1) is fixedly connected to a blocking block (48).

5. The environmental protection filtering device for waste gas from straw burning according to claim 4 is characterized in that: The rotating assembly (43) comprises a transmission rod 1 (431), the bottom end of the transmission rod 1 (431) being fixedly connected to a connecting block (432), the bottom end of the connecting block (432) being fixedly connected to the upper end of a connecting rod 2 (45), and a water inlet hole (433) being provided on the outer surface of the connecting rod 2 (45).

6. The environmental protection filtering device for waste gas from straw burning according to claim 5 is characterized by: The inner cavity of the water storage disc (44) is in communication with the inner cavity of the spiral plate (46) via the water inlet hole (433), and the outer surface of the water storage disc (44) is fixedly connected to the inner cavity of the shell (1).

7. The environmental protection filtering device for waste gas from straw burning according to claim 1 is characterized by: The bottom end of the isolation plate (33) is fixedly connected to the shell (1), and the right ends of the two connecting rods (34) are fixedly connected to the inner cavity of the shell (1).

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