An industrial waste gas emission detection mechanism and detection method thereof

Abstract

The invention discloses an exhaust gas emission detection mechanism for industrial production and a detection method thereof, which relate to the technical field of exhaust gas detection, and include: a detection tube, an air inlet pipe is fixedly installed on the surface of the detection tube, an exhaust pipe is fixedly installed on one end of the detection tube away from the air inlet pipe, a fixing ring is fixedly installed on the circumferential surface of the detection tube, a fixing frame is fixedly installed on the surface of the fixing ring, and an exhaust gas detection device is fixedly installed on the top of the detection tube; a filtering device, a filtering device is arranged inside the detection tube, and the filtering device includes a driving electric fan, a fixing rod, a filtering plate, a reciprocating screw rod, a spiral block, an L-shaped rod, an elastic telescopic plate and a pulley, and the exhaust gas circulation is improved by driving the electric fan to rotate, the driving electric fan to rotate will drive the fixing rod to rotate, and the fixing rod to rotate will drive the filtering plate to rotate, so as to prevent local blockage of the filtering material, ensure that the exhaust gas can pass continuously, and avoid the reduction of filtering performance due to the accumulation of impurities.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas detection, and in particular to a waste gas emission detection mechanism for industrial production and a detection method thereof. Background Art

[0002] Waste gas refers to toxic and harmful gases emitted by humans in the process of production and life. In particular, chemical plants, steel plants, pharmaceutical plants, coking plants and refineries emit strong odors, seriously polluting the environment and affecting human health. Waste gas generated in industrial production needs to be tested in advance by waste gas emission detection agencies to avoid waste gas overflow.

[0003] The patent with the patent announcement number CN220473491U relates to an industrial production waste gas emission detection mechanism, which relates to the field of waste gas detection. The industrial production waste gas emission detection mechanism includes a detection shell, an air inlet pipe is provided on the shell wall at one end of the detection shell, and an air outlet pipe is provided on the shell wall at the other end of the detection shell, and a fan is installed and connected at one end of the air outlet pipe. The industrial production waste gas emission detection mechanism provided by the patent starts the motor so that its output end drives the drive shaft to rotate, driving the annular spray piece to slide stably relative to the two limit rods, and the external clean water flows into the annular spray piece in one direction through the one-way valve in the fixed water pipe and sprays out, and the stable movement of the annular spray piece can be used to spray water evenly to automatically complete the cleaning of the inner wall of the detection shell; by controlling the electromagnetic valve at the drain outlet to open, the cleaning water sprayed from the annular spray piece automatically flows through the slope to the drain outlet for discharge, and the drainage process can be automatically completed during the cleaning process.

[0004] In the above patent, by starting the motor so that its output end drives the driving shaft to rotate, the annular spray piece is driven to slide stably relative to the two limit rods, and the external clean water flows into the annular spray piece in one direction through the one-way valve in the fixed water pipe and is sprayed out. The annular spray piece can be used to spray water evenly by stable movement. However, when the exhaust gas enters the pipeline, there will be a lot of impurities in the exhaust gas, which may cause the detector to be blocked by impurities, affecting the subsequent monitoring effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an industrial waste gas emission detection mechanism and a detection method thereof, which solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an exhaust gas emission detection mechanism for industrial production, comprising: a detection tube, an air inlet pipe is fixedly installed on the surface of the detection tube, an exhaust pipe is fixedly installed on the end of the detection tube away from the air inlet pipe, a fixing ring is fixedly installed on the circumferential surface of the detection tube, a fixing frame is fixedly installed on the surface of the fixing ring, and an exhaust gas detection device is fixedly installed on the top of the detection tube; a filtering device, a filtering device is arranged inside the detection tube, the filtering device comprises a driving fan, a fixing rod, a filter plate, a reciprocating screw rod, a spiral block, an L-shaped rod, an elastic telescopic plate and a pulley, the exhaust gas circulation is improved by driving the electric fan to rotate, the driving fan to rotate will drive the fixing rod to rotate, the fixing rod to rotate will drive the filter plate to rotate, the rotating filter plate can distribute the exhaust gas flow more evenly, so that the exhaust gas is more fully filtered when passing through the filter medium. The filter element is fixedly mounted on the inner wall of the detection tube, the fixed rod is fixedly mounted on the output end of the driving fan, the filter plate is fixedly mounted on the end of the fixed rod away from the driving fan, the reciprocating screw is fixedly mounted on the side of the filter plate away from the fixed rod, the spiral block is threadedly mounted on the circumferential surface of the reciprocating screw, the elastic telescopic plate is fixedly mounted on the bottom of the spiral block, the L-shaped rod is fixedly mounted on the top of the inner wall of the detection tube, the L-shaped rod slot passes through the surface of the spiral block, the pulley is rotatably mounted on the free end of the elastic telescopic plate, the rotation of the filter plate will drive the reciprocating screw rod to rotate, the rotation of the reciprocating screw rod will drive the spiral block to reciprocate, the spiral block moves in the direction close to the filter plate, and the elastic telescopic plate moves in the direction close to the filter plate, and the impurities blocked on the filter plate are scraped off by the scraper at the free end of the elastic telescopic plate.

[0007] According to the above technical solution, the elastic telescopic plate is arranged at one end of the filter plate away from the fixed rod, and a scraper is arranged at the free end of the elastic telescopic plate, and impurities are scraped off by the scraper to improve the filtering effect of the filter plate.

[0008] According to the above technical solution, a collecting device for collecting impurities is provided inside the detection tube, and a swinging device is provided inside the detection tube. The collecting device includes a connecting rod, an arc plate and a collecting box. The reciprocating motion of the elastic telescopic plate drives the connecting rod to move back and forth, and the reciprocating motion of the connecting rod drives the reciprocating motion of the arc plate. The reciprocating motion of the arc plate pushes the scraped impurities into the collecting box, thereby improving the recovery effect. The connecting rod is fixedly installed at one end of the elastic telescopic plate away from the filter plate, a leakage groove is provided at the bottom of the detection tube, the arc plate is fixedly installed at one end of the connecting rod away from the elastic telescopic plate, and the collecting box is fixedly installed at the bottom of the detection tube.

[0009] According to the above technical solution, an L-shaped long rod is fixedly installed at the bottom of the connecting rod, a support frame is fixedly installed at the end of the air intake pipe close to the detection tube, an L-shaped plate is slidably installed on the inner wall of the support frame, an elastic plate is fixedly installed on the top of the L-shaped plate, and a protrusion is fixedly installed at the end of the filter plate close to the fixed rod. The L-shaped long rod will push the L-shaped plate to move in the direction close to the driving electric fan, and the movement of the L-shaped plate in the direction close to the driving electric fan will drive the elastic plate to move in the direction close to the driving electric fan.

[0010] According to the above technical solution, the arc-shaped plate contacts the inner wall surface of the detection tube, and a No. 1 spring is arranged between the support frame and the L-shaped plate, and the No. 1 spring drives the L-shaped plate to reset.

[0011] According to the above technical scheme, the swing device includes a long rod, a circular ring plate, a support plate, a rotating plate, a long plate and an L-shaped push rod. The movement of the L-shaped plate toward the driving fan will drive the long rod to move away from the filter plate, and the movement of the long rod away from the filter plate will drive the L-shaped push rod to move away from the filter plate. The long rod is fixedly installed on the side of the L-shaped plate away from the filter plate, the circular ring plate is fixedly installed on the inner wall of the detection tube, the support plate is fixedly installed on the side of the circular ring plate close to the filter plate, the rotating plate is rotatably installed on the surface of the support plate, the long plate is fixedly installed on the top of the rotating plate, and the L-shaped push rod is fixedly installed on the top of the long rod.

[0012] According to the above technical solution, a connecting frame is fixedly installed on one side of the circular ring plate away from the filter plate, a rotating plate is rotatably installed on the surface of the connecting frame, and a sealing plate is fixedly installed on the circumferential surface of the rotating plate. The long rod moves in a direction away from the filter plate to push the rotating plate to rotate upward, and the upward rotation of the rotating plate will drive the sealing plate to rotate upward, so that the sealing plate rotates upward and overlaps with the circular ring plate.

[0013] According to the above technical solution, a No. 1 torsion spring is arranged between the rotating plate and the support plate, and the rotating plate is driven to reset by the No. 1 torsion spring. A No. 2 torsion spring is arranged between the connecting frame and the rotating plate, and the rotating plate is driven to reset by the No. 2 torsion spring.

[0014] A detection method for an industrial production waste gas emission detection mechanism comprises the following steps:

[0015] Step 1: Industrial waste gas enters the detection tube through the air intake pipe, and then the waste gas detection device detects whether the waste gas meets the emission standards;

[0016] Step 2: Improve the exhaust gas flow by driving the electric fan to rotate. The electric fan drives the fixed rod to rotate. The fixed rod drives the filter plate to rotate. The rotating filter plate can distribute the exhaust gas flow more evenly, so that the exhaust gas can get more sufficient contact when passing through the filter medium, thereby improving the capture rate of impurities;

[0017] Step 3: The filter plate rotates to drive the reciprocating screw to rotate, and the reciprocating screw rotates to drive the spiral block to reciprocate. The spiral block moves toward the filter plate and drives the elastic telescopic plate to move toward the filter plate. The scraper at the free end of the elastic telescopic plate scrapes off the impurities blocking the filter plate.

[0018] Step 4: By contacting the filter plate with the pulley, the scraper can be prevented from directly contacting the filter plate, which would damage the scraper filter plate and affect its service life.

[0019] The present invention provides an industrial waste gas emission detection mechanism and a detection method thereof, which have the following beneficial effects:

[0020] (1) This invention improves the exhaust gas flow by driving the electric fan to rotate. Driving the electric fan to rotate will drive the fixed rod to rotate. The fixed rod will drive the filter plate to rotate. The rotating filter plate can distribute the exhaust gas flow more evenly, so that the exhaust gas can get more sufficient contact when passing through the filter medium, thereby improving the capture rate of impurities, preventing local blockage of the filter material, ensuring that the exhaust gas can continue to pass, and avoiding the degradation of filtering performance due to impurity accumulation. The scraper at the free end of the elastic telescopic plate scrapes off the impurities blocked on the filter plate. At the same time, the scraper contacts the filter plate through the pulley, which can prevent the scraper from directly contacting the filter plate, causing damage to the filter plate during scraping and affecting the service life.

[0021] (2) The invention pushes the scraped impurities into the collection box through the reciprocating motion of the arc plate, thereby improving the recovery effect and preventing the impurities from re-attaching to the filter plate, causing more and more impurities to accumulate on the filter plate, affecting the exhaust gas detection effect. At the same time, when the filter plate rotates, the protrusion will drive the rotation of the protrusion. During the rotation of the protrusion, the elastic plate will vibrate through the contact between the protrusion and the elastic plate. The impurities attached to the filter plate will be shaken off by the vibration, thereby improving the effect of removing impurities and improving the accuracy of detection. At the same time, when the L-shaped plate moves toward the direction close to the driving fan, it will drive the elastic plate to move toward the direction close to the driving fan, preventing the elastic plate from contacting the protrusion for a long time. Long-term vibration may reduce the service life of the filter plate and affect the filtering effect.

[0022] (3) In the present invention, the downward rotation of the long plate drives the rotating plate to rotate upward, and the upward rotation of the rotating plate pushes the exhaust gas upward, so that the exhaust gas at the bottom of the detection tube can contact the exhaust gas detection device, thereby improving the exhaust gas detection effect. At the same time, the long rod moves away from the filter plate to push the rotating plate to rotate upward, and the upward rotation of the rotating plate drives the sealing plate to rotate upward. The sealing plate rotates upward and overlaps with the annular plate, so that the exhaust gas can stay at the bottom of the exhaust gas detection device for a period of time, so that the exhaust gas detection device can more accurately detect whether the exhaust gas can be discharged, thereby improving the exhaust gas detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the filtering device of the present invention;

[0026] Figure 4 For the present invention Figure 3 A schematic diagram of the structure enlargement of part A;

[0027] Figure 5 This is a schematic diagram of the structure of the collecting device of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the swing device of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the circular ring plate and the sealing plate of the present invention.

[0030] In the figure: 1. detection tube; 2. air inlet pipe; 3. air outlet pipe; 4. fixing ring; 5. fixing frame; 6. exhaust gas detection device; 7. driving fan; 8. fixing rod; 9. filter plate; 10. reciprocating screw rod; 11. spiral block; 12. L-shaped rod; 13. elastic telescopic plate; 14. pulley; 151. connecting rod; 152. arc plate; 153. collecting box; 154. L-shaped long rod; 155. supporting frame; 156. L-shaped plate; 157. elastic plate; 158. protrusion; 161. long rod; 162. circular ring plate; 163. supporting plate; 164. rotating plate; 165. long plate; 166. L-shaped push rod; 167. connecting frame; 168. rotating plate; 169. sealing plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 7One embodiment of the present invention is: an exhaust gas emission detection mechanism for industrial production, comprising: a detection tube 1, an air inlet pipe 2 is fixedly installed on the surface of the detection tube 1, an exhaust pipe 3 is fixedly installed on the end of the detection tube 1 away from the air inlet pipe 2, a fixing ring 4 is fixedly installed on the circumferential surface of the detection tube 1, a fixing frame 5 is fixedly installed on the surface of the fixing ring 4, and an exhaust gas detection device 6 is fixedly installed on the top of the detection tube 1; a filtering device, a filtering device is arranged inside the detection tube 1, and the filtering device comprises a driving fan 7, a fixing rod 8, a filter plate 9, a reciprocating screw rod 10, a spiral block 11, an L-shaped rod 12, an elastic telescopic plate 13 and a pulley 14, which prevents local blockage of the filter material, ensures that the exhaust gas can continue to pass, and avoids the filter caused by the accumulation of impurities. The performance is degraded, the driving fan 7 is fixedly mounted on the inner wall of the detection tube 1, the fixing rod 8 is fixedly mounted on the output end of the driving fan 7, the filter plate 9 is fixedly mounted on the end of the fixing rod 8 away from the driving fan 7, the reciprocating screw rod 10 is fixedly mounted on the side of the filter plate 9 away from the fixing rod 8, the spiral block 11 is threadedly mounted on the circumferential surface of the reciprocating screw rod 10, the elastic telescopic plate 13 is fixedly mounted on the bottom of the spiral block 11, the L-shaped rod 12 is fixedly mounted on the top of the inner wall of the detection tube 1, the L-shaped rod 12 slide groove passes through the surface of the spiral block 11, the pulley 14 is rotatably mounted on the free end of the elastic telescopic plate 13, and at the same time contacts with the filter plate 9 through the pulley 14, which can prevent the scraper from directly contacting the filter plate 9, causing damage to the filter plate 9 during scraping, affecting the service life.

[0033] The elastic expansion plate 13 is arranged at one end of the filter plate 9 away from the fixed rod 8 , and a scraper is arranged at the free end of the elastic expansion plate 13 , and impurities are scraped off by the scraper to improve the filtering effect of the filter plate 9 .

[0034] When the present embodiment is working, the industrial waste gas will enter the detection tube 1 through the air inlet pipe 2, and then the waste gas detection device 6 will detect whether the waste gas meets the emission standards. At the same time, the waste gas circulation is improved by driving the electric fan 7 to rotate. Driving the electric fan 7 to rotate will drive the fixed rod 8 to rotate, and the fixed rod 8 to rotate will drive the filter plate 9 to rotate. The rotating filter plate 9 can distribute the waste gas flow more evenly, so that the waste gas can get more sufficient contact when passing through the filter medium, thereby improving the capture rate of impurities, preventing local blockage of the filter material, ensuring that the waste gas can continue to pass, and avoiding the problem of The filtration performance is reduced due to the accumulation of impurities. At the same time, the rotation of the filter plate 9 will drive the reciprocating screw 10 to rotate, and the rotation of the reciprocating screw 10 will drive the spiral block 11 to reciprocate. The movement of the spiral block 11 toward the filter plate 9 will drive the elastic telescopic plate 13 to move toward the filter plate 9. The impurities blocked on the filter plate 9 are scraped off by the scraper at the free end of the elastic telescopic plate 13. At the same time, the scraper is in contact with the filter plate 9 through the pulley 14, which can prevent the scraper from directly contacting the filter plate 9, causing damage to the filter plate 9 during scraping, thereby affecting the service life.

[0035] A detection method for an industrial production waste gas emission detection mechanism comprises the following steps:

[0036] Step 1: Industrial waste gas enters the detection tube 1 through the air intake pipe 2, and then the waste gas detection device 6 detects whether the waste gas meets the emission standards;

[0037] Step 2: The exhaust gas circulation is improved by driving the electric fan 7 to rotate. The electric fan 7 drives the fixing rod 8 to rotate. The fixing rod 8 drives the filter plate 9 to rotate. The rotating filter plate 9 can distribute the exhaust gas flow more evenly, so that the exhaust gas can get more sufficient contact when passing through the filter medium, thereby improving the capture rate of impurities;

[0038] Step 3: The filter plate 9 rotates to drive the reciprocating screw 10 to rotate, and the reciprocating screw 10 rotates to drive the spiral block 11 to reciprocate, and the spiral block 11 moves toward the filter plate 9 to drive the elastic telescopic plate 13 to move toward the filter plate 9, and the scraper at the free end of the elastic telescopic plate 13 scrapes off the impurities blocking the filter plate 9;

[0039] Step 4: By contacting the pulley 14 with the filter plate 9, it is possible to prevent the scraper from directly contacting the filter plate 9, which would damage the filter plate 9 and affect its service life.

[0040] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a collecting device for collecting impurities is provided inside the detection tube 1, and a swinging device is provided inside the detection tube 1. The collecting device includes a connecting rod 151, an arc plate 152 and a collecting box 153. The connecting rod 151 is fixedly mounted on the end of the elastic telescopic plate 13 away from the filter plate 9. A leakage groove is provided at the bottom of the detection tube 1. The arc plate 152 is fixedly mounted on the end of the connecting rod 151 away from the elastic telescopic plate 13. The collecting box 153 is fixedly mounted on the bottom of the detection tube 1 to prevent impurities from re-attaching to the filter plate 9, resulting in more and more impurities accumulating on the filter plate 9, affecting the exhaust gas detection effect.

[0041] An L-shaped long rod 154 is fixedly installed at the bottom of the connecting rod 151, a support frame 155 is fixedly installed at the end of the air inlet pipe 2 close to the detection tube 1, an L-shaped plate 156 is slidably installed on the inner wall of the support frame 155, an elastic plate 157 is fixedly installed on the top of the L-shaped plate 156, and a protrusion 158 is fixedly installed at the end of the filter plate 9 close to the fixed rod 8 to prevent the elastic plate 157 from contacting the protrusion 158 for a long time. Long-term vibration may cause the service life of the filter plate 9 to decrease, affecting the filtering effect.

[0042] The arc-shaped plate 152 contacts the inner wall surface of the detection tube 1, and a No. 1 spring is arranged between the support frame 155 and the L-shaped plate 156, and the No. 1 spring drives the L-shaped plate 156 to reset.

[0043] The swing device includes a long rod 161, an annular plate 162, a support plate 163, a rotating plate 164, a long plate 165 and an L-shaped push rod 166. The long rod 161 is fixedly mounted on the side of the L-shaped plate 156 away from the filter plate 9, the annular plate 162 is fixedly mounted on the inner wall of the detection tube 1, the support plate 163 is fixedly mounted on the side of the annular plate 162 close to the filter plate 9, the rotating plate 164 is rotatably mounted on the surface of the support plate 163, the long plate 165 is fixedly mounted on the top of the rotating plate 164, and the L-shaped push rod 166 is fixedly mounted on the top of the long rod 161. The upward rotation of the rotating plate 164 will push the exhaust gas upward, so that the exhaust gas at the bottom of the detection tube 1 can contact the exhaust gas detection device 6, thereby improving the detection effect of the exhaust gas.

[0044] A connecting frame 167 is fixedly installed on one side of the annular plate 162 away from the filter plate 9, a rotating plate 168 is rotatably installed on the surface of the connecting frame 167, and a sealing plate 169 is fixedly installed on the circumferential surface of the rotating plate 168, so that the exhaust gas can stay at the bottom of the exhaust gas detection device 6 for a period of time, so that the exhaust gas detection device 6 can more accurately detect whether the exhaust gas can be discharged, thereby improving the detection effect of the exhaust gas.

[0045] A first torsion spring is arranged between the rotating plate 164 and the supporting plate 163, and the rotating plate 164 is reset by the first torsion spring. A second torsion spring is arranged between the connecting frame 167 and the rotating plate 168, and the rotating plate 168 is reset by the second torsion spring.

[0046] When the present embodiment is working, the reciprocating motion of the elastic telescopic plate 13 drives the connecting rod 151 to reciprocate, and the reciprocating motion of the connecting rod 151 drives the arc plate 152 to reciprocate, and the reciprocating motion of the arc plate 152 pushes the scraped impurities into the collecting box 153, thereby improving the recovery effect and preventing the impurities from being re-adhered to the filter plate 9, resulting in more and more impurities being accumulated on the filter plate 9, affecting the exhaust gas detection effect; at the same time, when the filter plate 9 rotates, the protrusion 158 is driven to rotate, and the protrusion 158 will contact the elastic plate 157 during the rotation process, and the protrusion 158 will vibrate with the elastic plate 157 through the contact between the protrusion 158 and the elastic plate 157, so that the impurities attached to the filter plate 9 are shaken off by the vibration. To improve the effect of removing impurities and the accuracy of detection, at the same time, the movement of the connecting rod 151 towards the filter plate 9 will drive the L-shaped long rod 154 to move towards the driving fan 7, and the L-shaped long rod 154 moves towards the driving fan 7 and contacts the L-shaped plate 156, and the L-shaped long rod 154 will push the L-shaped plate 156 to move towards the driving fan 7, and the L-shaped plate 156 moves towards the driving fan 7, which will drive the elastic plate 157 to move towards the driving fan 7, thereby preventing the elastic plate 157 from contacting the protrusion 158 for a long time. Long-term vibration may reduce the service life of the filter plate 9 and affect the filtering effect.

[0047] The movement of the L-shaped plate 156 toward the driving electric fan 7 will drive the long rod 161 to move away from the filter plate 9, and the movement of the long rod 161 toward the filter plate 9 will drive the L-shaped push rod 166 to move away from the filter plate 9. The movement of the L-shaped push rod 166 toward the filter plate 9 will push the long plate 165 to rotate downward, and the downward rotation of the long plate 165 will drive the rotating plate 164 to rotate upward. The upward rotation of the rotating plate 164 will push the exhaust gas upward, so that the exhaust gas at the bottom of the detection tube 1 can contact the exhaust gas detection device 6, thereby improving the detection effect of the exhaust gas. At the same time, the movement of the long rod 161 toward the filter plate 9 will push the rotating plate 168 to rotate upward, and the upward rotation of the rotating plate 168 will drive the sealing plate 169 to rotate upward, and the sealing plate 169 will rotate upward to overlap with the annular plate 162, so that the exhaust gas can stay at the bottom of the exhaust gas detection device 6 for a period of time, so that the exhaust gas detection device 6 can more accurately detect whether the exhaust gas can be discharged, thereby improving the detection effect of the exhaust gas.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial waste gas emission detection mechanism, characterized in that: include: A detection tube (1), an air inlet pipe (2) being fixedly mounted on the surface of the detection tube (1), an air outlet pipe (3) being fixedly mounted on one end of the detection tube (1) away from the air inlet pipe (2), a fixing ring (4) being fixedly mounted on the circumferential surface of the detection tube (1), a fixing frame (5) being fixedly mounted on the surface of the fixing ring (4), and an exhaust gas detection device (6) being fixedly mounted on the top of the detection tube (1); A filtering device is provided inside the detection tube (1), the filtering device comprising a driving electric fan (7), a fixing rod (8), a filtering plate (9), a reciprocating screw rod (10), a spiral block (11), an L-shaped rod (12), an elastic telescopic plate (13) and a pulley (14), the driving electric fan (7) being fixedly mounted on the inner wall of the detection tube (1), the fixing rod (8) being fixedly mounted on the output end of the driving electric fan (7), and the filtering plate (9) being fixedly mounted on the fixing rod (8) away from the driving electric fan. The fan (7) has one end, the reciprocating screw rod (10) is fixedly mounted on a side of the filter plate (9) away from the fixed rod (8), the spiral block (11) is threadedly mounted on the circumferential surface of the reciprocating screw rod (10), the elastic telescopic plate (13) is fixedly mounted on the bottom of the spiral block (11), the L-shaped rod (12) is fixedly mounted on the top of the inner wall of the detection tube (1), the sliding groove of the L-shaped rod (12) passes through the surface of the spiral block (11), and the pulley (14) is rotatably mounted on the free end of the elastic telescopic plate (13); Wherein, a collecting device for collecting impurities is arranged inside the detection tube (1), and a swinging device is arranged inside the detection tube (1); The elastic expansion plate (13) is arranged at one end of the filter plate (9) away from the fixed rod (8), and a scraper is arranged at the free end of the elastic expansion plate (13); The collecting device comprises a connecting rod (151), an arc-shaped plate (152) and a collecting box (153); the connecting rod (151) is fixedly mounted on one end of the elastic telescopic plate (13) away from the filter plate (9); a leakage groove is provided at the bottom of the detection tube (1); the arc-shaped plate (152) is fixedly mounted on one end of the connecting rod (151) away from the elastic telescopic plate (13); and the collecting box (153) is fixedly mounted on the bottom of the detection tube (1); An L-shaped long rod (154) is fixedly mounted on the bottom of the connecting rod (151); a support frame (155) is fixedly mounted on one end of the air inlet pipe (2) close to the detection pipe (1); an L-shaped plate (156) is slidably mounted on the inner wall of the support frame (155); an elastic plate (157) is fixedly mounted on the top of the L-shaped plate (156); and a protrusion (158) is fixedly mounted on one end of the filter plate (9) close to the fixed rod (8); The arc-shaped plate (152) contacts the inner wall surface of the detection tube (1), and a spring No. 1 is provided between the support frame (155) and the L-shaped plate (156); The swing device comprises a long rod (161), a circular plate (162), a support plate (163), a rotating plate (164), a long plate (165) and an L-shaped push rod (166); the long rod (161) is fixedly mounted on a side of the L-shaped plate (156) away from the filter plate (9); the circular plate (162) is fixedly mounted on an inner wall of the detection tube (1); the support plate (163) is fixedly mounted on a side of the circular plate (162) close to the filter plate (9); the rotating plate (164) is rotatably mounted on the surface of the support plate (163); the long plate (165) is fixedly mounted on the top of the rotating plate (164); and the L-shaped push rod (166) is fixedly mounted on the top of the long rod (161); A connecting frame (167) is fixedly mounted on a surface of the annular plate (162) away from the filter plate (9); a rotating plate (168) is rotatably mounted on the surface of the connecting frame (167); and a sealing plate (169) is fixedly mounted on the circumferential surface of the rotating plate (168); A first torsion spring is provided between the rotating plate (164) and the supporting plate (163), and a second torsion spring is provided between the connecting frame (167) and the rotating plate (168).

2. A detection method for an industrial production waste gas emission detection mechanism, using the industrial production waste gas emission detection mechanism according to claim 1, characterized in that: The following steps are involved: Step 1: Industrial waste gas enters the detection tube (1) through the air intake pipe (2), and then the waste gas detection device (6) detects whether the waste gas meets the emission standards; Step 2: driving the electric fan (7) to rotate to improve the exhaust gas flow, driving the electric fan (7) to rotate to drive the fixed rod (8), and the fixed rod (8) to rotate to drive the filter plate (9), and the rotating filter plate (9) can more evenly distribute the exhaust gas flow, so that the exhaust gas can be more fully contacted when passing through the filter medium, thereby improving the capture rate of impurities; Step 3: The filter plate (9) rotates to drive the reciprocating screw (10), and the reciprocating screw (10) rotates to drive the spiral block (11) to reciprocate, and the spiral block (11) moves in a direction close to the filter plate (9), driving the elastic telescopic plate (13) to move in a direction close to the filter plate (9), and the impurities blocked on the filter plate (9) are scraped off by the scraper at the free end of the elastic telescopic plate (13); Step 4: The pulley (14) is in contact with the filter plate (9), thereby preventing the scraper from directly contacting the filter plate (9), thereby causing damage to the scraper filter plate (9) and affecting its service life.

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