Production workshop waste gas treatment equipment

Abstract

The invention relates to the technical field of filtering devices, and particularly discloses production workshop waste gas treatment equipment which comprises a box shell, a gas inlet pipe, a gas outlet pipe, a filter screen, a cleaning assembly and a first linear driving mechanism. The cleaning assembly comprises a housing, a sleeve, a rotating shaft, a rotary driving mechanism and comb teeth, wherein the length of the housing extends front and back, and an opening is formed in the lower end of the housing; the sleeve is installed in the housing and can rotate around the central axis of the housing; the rotating shaft is installed in the sleeve and can rotate around the central axis of the housing; the scraping ring is sleeved outside the sleeve in a front-back moving manner so as to scrape off fluff on the outer surface of the sleeve; a plurality of comb teeth are distributed in the circumferential direction of the rotating shaft and form a plurality of tooth sets, the tooth sets are distributed in the axial direction of the rotating shaft, the sleeve is provided with penetrating holes allowing the comb teeth to penetrate through, and the rotating shaft is provided with guide grooves guiding the inner ends of the comb teeth to move. According to the waste gas treatment equipment for the production workshop, the cleaning efficiency of the filter screen is improved, and the damage to the filter screen is small.

Description

Technical Field

[0001] The invention relates to the technical field of filtering devices, and in particular to waste gas treatment equipment in a production workshop. Background Art

[0002] In the textile production process, especially in the spinning, weaving, printing and dyeing and finishing links, it is inevitable to produce waste gas containing fiber dust, short fibers, volatile organic compounds, acidic gases and other harmful substances. If these waste gases are discharged directly without treatment, they will cause serious harm to the environment and human health. At present, the waste gas treatment steps in textile workshops usually include waste gas collection, pretreatment, purification, post-treatment and discharge. Among them, the waste gas pretreatment stage often uses equipment such as bag filters, electrostatic precipitators or filters to remove fiber dust, short fibers, dust and other macromolecular impurities in the waste gas.

[0003] A Chinese patent document with authorization announcement number CN114931816B discloses an air filter device for a textile workshop. The air filter device for a textile workshop is arranged by the coordination of a fan blade, a rotating shaft and a coil spring. While the filter screen is filtering normally, the wind speed causes the fan blade to generate power and collects it through the coil spring. After the limit rod is separated from the platform on the surface of the arc plate, it is ensured that the disc will not rotate counterclockwise, and at the same time, it also provides power for the disc to rotate clockwise; and through the coordination of the limit rod and the protrusion, the push rod continuously impacts the filter screen during rotation, so that the cotton wool in the gas attached to the surface of the filter screen falls into the collection box; and a cutter is arranged, when the cutter falls into the filter screen under gravity, the cotton wool thread ends extending into the mesh holes on the inner surface of the filter screen are cut off to prevent them from being entangled in the mesh holes, so that the cotton wool impurities adsorbed on the outer surface of the filter screen are easier to fall off.

[0004] However, in the prior art, the above-mentioned air filter device for textile workshops cleans the cotton wool attached to the filter net by cutting with a cutter and impacting with a push rod during operation, and the cleaning efficiency of the filter net is low. Especially when a large amount of cotton wool is attached to the filter net, the cutter needs to cut multiple times and the push rod needs to impact continuously. Such operations must be repeated multiple times before the cotton wool on the filter net can fall into the collection box. The cutting and impacting actions may also cause physical damage to the filter net, thereby shortening the service life of the filter net. Summary of the invention

[0005] The present invention provides a waste gas treatment device for a production workshop, aiming to solve the problem that the cleaning efficiency of the filter screen is low and the filter screen is easily damaged in the air filtering device used in a textile workshop in the related art.

[0006] The present invention provides a production workshop waste gas treatment equipment adopts the following technical solution: A waste gas treatment device for a production workshop, comprising a box shell, an air inlet pipe connected to the upper end of the box shell, an air outlet pipe connected to the lower end of the box shell, a filter screen arranged in the box shell, and a cleaning component mounted on the upper surface of the filter screen for left-right movement, and a first linear drive mechanism arranged on the box shell to drive the cleaning component to move left-right; the cleaning component comprises a cover shell extending forward and backward and having an opening at the lower end, a sleeve installed in the cover shell and rotatable around the central axis of the cover shell, a rotating shaft installed in the sleeve and rotatable around the central axis of the cover shell, a rotary drive mechanism driving the sleeve and the rotating shaft to rotate, and a first linear drive mechanism arranged on the box shell to drive the cleaning component to move left-right. Comb teeth are on the rotating shaft and extend between the sleeve and the cover shell, and a scraper ring is mounted on the sleeve and moves back and forth to scrape off the fluff on the outer surface of the sleeve; the comb teeth are distributed in multiple groups along the circumference of the rotating shaft to form a tooth group, and the tooth group is distributed in multiple groups along the axial direction of the rotating shaft. The sleeve has a through hole for passing the comb teeth and limiting the radial movement of the comb teeth along the sleeve, and the rotating shaft has a guide groove for guiding the movement of the inner end of the comb teeth. The rotary drive mechanism can drive the sleeve and the rotating shaft to rotate at different speeds so that the guide groove guides the inner end of the comb teeth to move outward or inward, thereby controlling the comb teeth to extend or retract relative to the sleeve.

[0007] By adopting the above technical solution, a cleaning component is arranged on the upper surface of the filter screen, and the rotary drive mechanism drives the sleeve and the rotating shaft to rotate at different speeds, so that the inner end of the comb teeth can move outward or inward under the guidance of the guide groove of the rotating shaft, so as to realize the extension or retraction of the comb teeth relative to the sleeve; when the comb teeth are extended relative to the sleeve, as the first linear drive mechanism drives the cleaning component to move left and right, the comb teeth can contact the upper surface of the filter screen through the opening at the lower end of the cover shell during the rotation of the sleeve, and when the comb teeth contact the upper surface of the filter screen, they can pass through the gaps in the flocs to comb the flocs from the upper surface of the filter screen. The outer ends of the comb teeth can also apply a certain amount of pressure on the filter to scrape and help separate the flocs from the filter surface. The scraping action is also beneficial to remove stubborn stains on the filter, thereby improving the cleaning effect. When the comb teeth are retracted relative to the sleeve, the flocs captured on the comb teeth adhere to the outer surface of the sleeve. At this time, the forward and backward movement of the scraper ring can collect the flocs on the outer surface of the sleeve, thereby realizing the cleaning and collection of the flocs on the filter surface, improving the cleaning efficiency of the filter, causing less damage to the filter, and extending the service life of the filter.

[0008] Furthermore, the rotary drive mechanism includes a first friction wheel fixed to the front end of the sleeve, a second friction wheel fixed to the rear end of the rotating shaft, and an elastic member connected between the sleeve and the rotating shaft. The front inner wall of the box shell is provided with a first straight groove extending left and right, the first friction wheel is installed in the first straight groove, and the surface of the first friction wheel contacts the bottom of the first straight groove, and the rear inner wall of the box shell is provided with a second straight groove extending left and right, the second friction wheel is installed in the second straight groove, and the surface of the second friction wheel contacts the bottom of the second straight groove.

[0009] Furthermore, the outer end of the comb teeth has a trumpet portion whose diameter gradually decreases from the outside to the inside, and the outer end of the perforation forms a trumpet mouth for accommodating the trumpet portion.

[0010] By adopting the above technical solution, the shape of the horn part is conducive to guiding the flocs to move onto the comb teeth, making the flocs easier to be combed and scraped off the filter. The shape of the horn part can also increase the cleaning area of ​​the outer end of the comb teeth, thereby covering a wider filter surface and improving cleaning efficiency.

[0011] Furthermore, the right end of the second straight groove is connected to the release groove, and after the second friction wheel enters the release groove, the second friction wheel is separated from the groove bottom of the second straight groove.

[0012] Furthermore, the guide groove is a spiral arc groove, and a guide block is fixed to the inner end of the comb tooth, and the guide block is movably assembled in the guide groove.

[0013] Furthermore, the cleaning assembly also includes a singeing mechanism disposed on the cover shell, the singeing mechanism includes delivery pipes fixed at the opening of the cover shell symmetrically, and a burner disposed on each of the delivery pipes, and the burner faces the filter screen.

[0014] By adopting the above technical scheme, comb cleaning can mechanically remove flocs and larger particles on the surface of the filter, but it is difficult to reach the fine flocs. In order to ensure comprehensive cleaning and improve the cleaning effect, most of the loose flocs can be removed by combing teeth first, and then flame treated by singeing mechanism. Combining the two cleaning methods can more effectively prevent the filter from being blocked, thereby extending the service life of the filter.

[0015] Furthermore, the cleaning component also includes a blowing and sucking mechanism arranged on the cover shell, the blowing and sucking mechanism includes a ventilation ring fixed on the cover shell, and a ventilation pipe fixed on the ventilation ring, the ventilation pipe is connected to the outside at one end away from the ventilation ring, a ventilation chamber is formed between the sleeve and the rotating shaft, the ventilation ring is connected to the ventilation chamber, a flocculation chamber is formed between the sleeve and the cover shell, and an air passage extending along the axial direction of the comb teeth is opened on the outer wall of the comb teeth, and the air passage connects the flocculation chamber and the ventilation chamber.

[0016] By adopting the above technical scheme, the blowing and suction mechanism is used to suck or pass air into the floc collecting chamber. When the comb teeth clean the flocs, the blowing and suction mechanism sucks air into the floc collecting chamber to generate negative pressure in the floc collecting chamber, thereby assisting the flocs to adhere to the comb teeth and the sleeve, thereby improving the cleaning effect; when the singeing mechanism performs flame treatment on the filter screen, the blowing and suction mechanism passes air into the floc collecting chamber to assist in removing the flocs on the surface of the filter screen and the residues after combustion, thereby reducing the deposition of these substances on the filter screen.

[0017] Furthermore, a limiting block is fixed on the scraper ring, the cover shell has a limiting groove extending along the length direction of the cover shell, the limiting block is movably assembled in the limiting groove, and the cleaning assembly also includes a second linear drive mechanism arranged on the box shell to drive the scraper ring to move forward and backward.

[0018] By adopting the above technical solution, the floccules can be automatically cleaned and discharged, which reduces manual operations, improves production efficiency, and can be cleaned without stopping the machine, thus ensuring the continuity of production.

[0019] Furthermore, the lower surface of the scraper ring has a plane parallel to the filter screen.

[0020] Furthermore, the release groove is a circular groove connected to the outside, and the box shell is equipped with an openable discharge door at the release groove.

[0021] The beneficial effects of the waste gas treatment equipment for a production workshop provided by the present invention are as follows: a cleaning component is arranged on the upper surface of the filter screen, and the sleeve and the rotating shaft are driven to rotate at different speeds by a rotary drive mechanism, so that the inner ends of the comb teeth can move outward or inward under the guidance of the guide groove of the rotating shaft, so as to realize the extension or retraction of the comb teeth relative to the sleeve; when the comb teeth are extended relative to the sleeve, as the first linear drive mechanism drives the cleaning component to move left and right, the comb teeth can contact the upper surface of the filter screen through the opening at the lower end of the cover shell during the rotation of the sleeve, and in the process of the comb teeth contacting the upper surface of the filter screen, they can pass through the gaps in the flocs to remove the flocs. The scraper ring can comb out the flocs from the upper surface of the filter to capture and guide the flocs to leave the filter. The outer ends of the comb teeth can also apply a certain pressure to the filter to scrape and help separate the flocs from the surface of the filter. The scraping action is also beneficial to remove stubborn stains on the filter, thereby improving the cleaning effect. When the comb teeth are retracted relative to the sleeve, the flocs captured on the comb teeth adhere to the outer surface of the sleeve. At this time, the forward and backward movement of the scraper ring can collect the flocs on the outer surface of the sleeve, thereby realizing the cleaning and collection of the flocs on the surface of the filter, improving the cleaning efficiency of the filter, causing less damage to the filter, and extending the service life of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a first structural schematic diagram of the production workshop waste gas treatment equipment of the present invention.

[0023] Figure 2 It is a second structural schematic diagram of the production workshop waste gas treatment equipment of the present invention.

[0024] Figure 3 It is a schematic structural diagram of the second straight slot and the release slot of the production workshop waste gas treatment equipment of the present invention.

[0025] Figure 4 It is a first structural schematic diagram of the cleaning component of the production workshop waste gas treatment equipment of the present invention.

[0026] Figure 5 It is a second structural schematic diagram of the cleaning component of the production workshop waste gas treatment equipment of the present invention.

[0027] Figure 6 It is a structural schematic diagram of a sleeve and a scraper ring of a production workshop waste gas treatment device of the present invention.

[0028] Reference numerals: 10. Box shell; 110. Air inlet pipe; 120. Air outlet pipe; 130. Bracket; 140. First straight groove; 150. Second straight groove; 160. Release groove; 20. Filter screen; 30. Cover shell; 310. Limiting groove; 40. Sleeve; 411. Bell mouth; 420. First friction wheel; 430. Flocculent collecting chamber; 50. Rotating shaft; 510. Guide groove; 520. Second friction wheel; 530. Ventilation chamber; 60. Comb teeth; 610. Bell part; 620. Guide block; 630. Ventilation channel; 70. Scraper ring; 710. Limiting block; 80. Delivery pipe; 810. Fire mouth; 90. Ventilation ring; 910. Ventilation pipe. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figures 1 to 6 As shown, and refer to Figure 2 As shown in the figure, an embodiment of the production workshop exhaust gas treatment equipment of the present invention includes a box shell 10, an air inlet pipe 110, an air outlet pipe 120, a filter screen 20, a cleaning component, and a first linear drive mechanism.

[0031] like Figures 1 to 3As shown, the box shell 10 is in the shape of a rectangular hollow shell, and a first straight groove 140 extending left and right is opened on the front inner wall of the box shell 10, and a second straight groove 150 extending left and right is opened on the rear inner wall of the box shell 10. The right end of the second straight groove 150 is connected to the release groove 160, and the sum of the lengths of the second straight groove 150 and the release groove 160 is equal to the length of the first straight groove 140. The release groove 160 is a circular groove connected to the outside world, and the box shell 10 is equipped with an openable discharge door at the release groove 160. The box shell 10 is fixed on the bracket 130, and the bracket 130 is used to support the box shell 10, providing a stable support structure for the waste gas treatment equipment in the production workshop, which is convenient for the equipment to be connected with the exhaust duct and the power supply, and ensures that the equipment will not move or tip over due to weight or external factors during operation. The air inlet pipe 110 is a circular pipe and is fixed on the upper surface of the box shell 10. The air inlet pipe 110 is connected to the upper end of the box shell 10, and is used to introduce the waste gas generated in the textile workshop during the production process into the box shell 10 for filtering. The air outlet pipe 120 is a circular pipe and is fixed on the lower surface of the box shell 10. The air outlet pipe 120 is connected to the lower end of the box shell 10, and is used to discharge the gas after filtering into the atmosphere, or guide it to the next waste gas treatment link. A check valve is installed on the air outlet pipe 120 to prevent the external air from flowing back when the equipment is shut down. Furthermore, in other embodiments, the air inlet pipe 110 and the air outlet pipe 120 can also be a square tube or a rectangular tube, and the specific shape depends on the gas flow, system design and space limitations. The first linear drive mechanism is a hydraulic cylinder, which is arranged on the box shell 10 and is used to drive the cleaning component to move left and right. In other embodiments, the first linear drive mechanism can also be a screw nut mechanism, a pneumatic drive mechanism, a gear rack mechanism, etc.

[0032] like Figure 2 As shown, the filter screen 20 is fixedly installed in the box shell 10. The material of the filter screen 20 is metal or glass fiber, which has good high temperature resistance and can remain stable in a high temperature environment. The filter screen 20 is in the shape of a horizontally distributed flat plate, and is used to capture flocs in the exhaust gas, such as fiber dust, short fluff, cotton wool, etc. The exhaust gas generated in the textile workshop during the production process is passed into the box shell 10 from the upper end of the box shell 10, and is filtered and processed by the filter screen 20. The flocs in the exhaust gas adhere to the upper surface of the filter screen 20. The filtered gas passes through the filter screen 20 and is discharged from the lower end of the box shell 10.

[0033] like Figure 2 , Figure 4 and Figure 6 As shown, the cleaning assembly is assembled on the upper surface of the filter screen 20 by moving left and right, and is used to regularly clean the filter screen 20 to remove the floccules accumulated on the upper surface of the filter screen 20, thereby maintaining the filtering efficiency of the filter screen 20 and preventing the pressure drop from increasing. The cleaning assembly includes a housing 30, a sleeve 40, a rotating shaft 50, comb teeth 60, a scraper ring 70, a rotary drive mechanism, a second linear drive mechanism, a singeing mechanism, and a blowing and suction mechanism.

[0034] like Figure 2 and Figure 4 As shown, the housing 30 is connected to the first linear drive mechanism in a transmission manner and moves left and right under the drive of the first linear drive mechanism. The cross section of the housing 30 is circular and the length extends forward and backward. An opening is provided at the lower end of the housing 30 so that the comb teeth 60 can clean the filter screen 20 through the opening at the lower end of the housing 30. The upper end of the housing 30 has a limit groove 310 extending along the length direction of the housing 30. The housing 30 provides a stable support structure for the cleaning component and can prevent the floccules collected by the comb teeth 60 in the housing 30 from being spread outside the housing 30 again to cause secondary pollution, thereby ensuring the cleaning effect of the cleaning component. The sleeve 40 is installed in the housing 30 and can rotate around the central axis of the housing 30. A flocculent collecting chamber 430 is formed between the sleeve 40 and the housing 30. The rotating shaft 50 is installed in the sleeve 40 and can rotate around the central axis of the housing 30. A ventilation chamber 530 is formed between the sleeve 40 and the rotating shaft 50.

[0035] like Figures 4 to 6 As shown, the comb teeth 60 are in the shape of elongated strips, and the comb teeth 60 are arranged on the rotating shaft 50 and extend into the flocculation chamber 430 between the sleeve 40 and the cover 30. There are a plurality of comb teeth 60 distributed along the circumference of the rotating shaft 50 to form a tooth group, and there are multiple groups of tooth groups distributed along the axial direction of the rotating shaft 50. The comb teeth 60 are used to contact the upper surface of the filter screen 20 through the opening at the lower end of the cover 30. During the process of the comb teeth 60 contacting the upper surface of the filter screen 20, the comb teeth 60 can pass through the gaps of the floccules to comb the floccules out of the upper surface of the filter screen 20. The spaced arrangement and elongated shape of the comb teeth 60 are conducive to capturing and guiding the floccules so that the floccules are separated from the filter screen 20. At the same time, the outer end of the comb teeth 60 can also apply a certain pressure to the filter screen 20 to scrape, so as to help the floccules separate from the surface of the filter screen 20. The scraping effect is also conducive to removing stubborn stains on the filter screen 20, thereby improving the cleaning effect. The denser the arrangement of the comb teeth 60, the better the cleaning effect. A guide block 620 is fixed to the inner end of each comb tooth 60, and a trumpet portion 610 with a gradually decreasing diameter from the outer to the inner end of each comb tooth 60 is provided. The shape of the trumpet portion 610 is conducive to guiding the floccules to move onto the comb teeth 60, making it easier for the floccules to be combed and scraped off the filter screen 20, and the shape of the trumpet portion 610 can also increase the cleaning area of ​​the outer end of the comb teeth 60, thereby covering a wider surface of the filter screen 20 and improving the cleaning efficiency.

[0036] like Figures 4 to 6As shown, the sleeve 40 has a through hole extending in the radial direction of the sleeve 40, the through hole is used to pass the comb teeth 60 and limit the comb teeth 60 to move in the radial direction of the sleeve 40, and the outer end of the through hole forms a bell mouth 411 for accommodating the bell portion 610. The rotating shaft 50 has a guide groove 510 for guiding the inner end of the comb teeth 60 to move, the guide groove 510 is a spiral arc groove, and extends outward from the center of the rotating shaft 50, and the guide block 620 is movably assembled in the guide groove 510. In other embodiments, the guide groove 510 can also be a straight groove that obliquely passes through the cross section of the rotating shaft 50 at a certain angle, and is not parallel to the radial or tangential direction of the rotating shaft 50.

[0037] like Figures 2 to 6 As shown, the rotary drive mechanism is used to drive the sleeve 40 and the rotating shaft 50 to rotate. The rotary drive mechanism includes a first friction wheel 420, a second friction wheel 520, and an elastic member. The diameter of the first friction wheel 420 is larger than the diameter of the second friction wheel 520. The first friction wheel 420 is fixed to the front end of the sleeve 40 and installed in the first straight groove 140. The surface of the first friction wheel 420 contacts the bottom of the first straight groove 140. The second friction wheel 520 is fixed to the rear end of the rotating shaft 50 and installed in the second straight groove 150. The surface of the second friction wheel 520 contacts the bottom of the second straight groove 150. After the second friction wheel 520 enters the release groove 160 along the second straight groove 150, the second friction wheel 520 is separated from the bottom of the second straight groove 150. The elastic member is a spiral spring and is connected between the sleeve 40 and the rotating shaft 50. Since the sleeve 40 and the rotating shaft 50 are rotatably mounted on the housing 30 respectively, that is, the sleeve 40 and the rotating shaft 50 move left and right synchronously with the housing 30, and the diameter of the first friction wheel 420 is larger than the diameter of the second friction wheel 520, under the same linear moving distance, due to the different circumferences of the friction wheels, the angles through which the sleeve 40 and the rotating shaft 50 rotate will also be different, thereby driving the sleeve 40 and the rotating shaft 50 to rotate at different speeds. At this time, the guide groove 510 guides the inner end of the comb teeth 60 to move outward, thereby controlling the comb teeth 60 to extend relative to the sleeve 40; the elastic member can store energy when the sleeve 40 and the rotating shaft 50 rotate at different speeds, and release energy when the second friction wheel 520 enters the release groove 160, that is, when the second friction wheel 520 is disengaged from the second straight groove 150. At this time, the second friction wheel 520 rotates in the opposite direction driven by the elastic force released by the elastic member, so that the guide groove 510 guides the inner end of the comb teeth 60 to move inward, thereby controlling the comb teeth 60 to be retracted relative to the sleeve 40. In other embodiments, the differential rotation of the first friction wheel 420 and the second friction wheel 520 can also be achieved by using different materials or surface treatments to make the friction coefficients between the first friction wheel 420 and the second friction wheel 520 and the straight groove different.

[0038] like Figures 4 to 6As shown, the scraper ring 70 is sleeved outside the sleeve 40 and moves forward and backward to scrape off the fluff on the outer surface of the sleeve 40. A limit block 710 is fixed on the upper end of the scraper ring 70, and the limit block 710 is movably assembled in the limit groove 310. The lower surface of the scraper ring 70 has a plane parallel to the filter screen 20. When the cleaning component moves to the release groove 160, the comb teeth 60 are retracted relative to the sleeve 40, and the floccules captured on the comb teeth 60 are attached to the outer surface of the sleeve 40 after the comb teeth 60 are retracted. At this time, the scraper ring 70 moves from front to back outside the sleeve 40 to push the floccules on the outer surface of the sleeve 40 toward the release groove 160, and is pushed out of the box shell 10 as the discharge door is opened. The plane of the lower surface of the scraper ring 70 can push and clean the floccules at the bottom of the cover shell 30. The second linear drive mechanism is a hydraulic cylinder, which is arranged on the box shell 10 and is transmission-connected to the scraper ring 70 to drive the scraper ring 70 to move forward and backward. This achieves automatic cleaning and discharge of floccules, reduces manual operations, improves production efficiency, and allows cleaning without stopping the machine, ensuring production continuity. In other embodiments, the second linear drive mechanism may also be a screw nut mechanism, a pneumatic drive mechanism, a gear rack mechanism, and the like.

[0039] like Figure 4 As shown, the singeing mechanism is arranged on the housing 30, and the singeing mechanism includes a delivery pipe 80 and a burner 810. The delivery pipe 80 is fixed at the opening of the housing 30 symmetrically, and the burner 810 is arranged on each delivery pipe 80 and faces the filter 20. The comb teeth 60 cleaning can mechanically remove the floccules and larger particles on the surface of the filter 20, but it is difficult to reach the fine floccules. In order to ensure comprehensive cleaning and improve the cleaning effect, most of the loose floccules can be removed by the comb teeth 60 first, and then the flame treatment is performed by the singeing mechanism. The combination of the two cleaning methods can more effectively prevent the filter 20 from being blocked, thereby extending the service life of the filter 20.

[0040] like Figure 5As shown, the blowing and suction mechanism is arranged on the housing 30. The blowing and suction mechanism comprises a ventilation ring 90 and a ventilation pipe 910. The ventilation ring 90 is fixed on the housing 30. The ventilation pipe 910 is fixed on the ventilation ring 90. One end of the ventilation pipe 910 away from the ventilation ring 90 is connected to the outside world for introducing or extracting air into the ventilation ring 90. The ventilation ring 90 is connected to the ventilation chamber 530. The outer wall of the comb teeth 60 is provided with a ventilation channel 630 extending along the axial direction of the comb teeth 60. The ventilation channel 630 connects the flocculation chamber 430 and the ventilation chamber 530. The blowing and suction mechanism is used to suck or pass air into the flocculation chamber 430. When the comb teeth 60 clean the flocs, the blowing and suction mechanism sucks air into the flocculation chamber 430, so that a negative pressure is generated in the flocculation chamber 430, which helps the flocs to adhere to the comb teeth 60 and the sleeve 40, thereby improving the cleaning effect; when the singeing mechanism performs flame treatment on the filter screen 20, the blowing and suction mechanism passes air into the flocculation chamber 430, which helps remove the flocs on the surface of the filter screen 20 and the residues after combustion, and reduces the deposition of these substances on the filter screen 20.

[0041] The working process of the embodiment of the production workshop waste gas treatment equipment of the present invention includes the following steps: The first step is to clean and start the first linear drive mechanism. The first linear drive mechanism drives the housing 30 to move from left to right. The sleeve 40 and the rotating shaft 50 move from left to right with the housing 30. The first friction wheel 420 moves from the left end to the right end of the first straight groove 140, and the second friction wheel 520 moves from the left end to the right end of the second straight groove 150. The first straight groove 140 drives the first friction wheel 420 to drive the sleeve 40 to rotate through friction. The second straight groove 150 drives the second friction wheel 520 to drive the rotating shaft 50 to rotate through friction, and the second friction wheel 520 The rotation speed is greater than the rotation speed of the first friction wheel 420, and there is a rotation speed difference between the sleeve 40 and the rotating shaft 50; the guide groove 510 guides the inner end of the comb teeth 60 to move outward, and the comb teeth 60 extend relative to the sleeve 40 and remain in the extended state. As the sleeve 40 continues to rotate, the comb teeth 60 contact the upper surface of the filter screen 20 through the opening at the lower end of the cover shell 30. During the process of the comb teeth 60 contacting the upper surface of the filter screen 20, the comb teeth 60 pass through the gaps in the flocs and comb the flocs out from the upper surface of the filter screen 20 to capture and guide the flocs to leave the filter screen 20; the elastic member stores energy.

[0042] The second step is collection. After the cover shell 30 moves to the rightmost end, the first linear drive mechanism is closed, the first friction wheel 420 keeps in contact with the first straight groove 140, the first friction wheel 420 and the sleeve 40 are restricted in rotation, the second friction wheel 520 enters the release groove 160 from the second straight groove 150, the second friction wheel 520 can rotate freely, and the energy stored in the elastic member is released. The second friction wheel 520 rotates in the opposite direction driven by the elastic force released by the elastic member, so that the guide groove 510 guides the inner end of the comb teeth 60 to move inward, thereby controlling the comb teeth 60 to be retracted relative to the sleeve 40; start the second linear drive mechanism, and the second linear drive mechanism drives the scraper ring 70 to move from front to back outside the sleeve 40, pushing the flocs on the outer surface of the sleeve 40 toward the release groove 160, and pushing them out of the box shell 10 as the discharge door is opened.

[0043] In this way, a cleaning component is provided on the upper surface of the filter 20, and the rotary drive mechanism drives the sleeve 40 and the rotating shaft 50 to rotate at different speeds, so that the inner ends of the comb teeth 60 can move outward or inward under the guidance of the guide groove 510 of the rotating shaft 50, so as to realize the extension or retraction of the comb teeth 60 relative to the sleeve 40; when the comb teeth 60 are extended relative to the sleeve 40, as the first linear drive mechanism drives the cleaning component to move left and right, the comb teeth 60 can contact the upper surface of the filter 20 through the opening at the lower end of the cover 30 during the rotation of the sleeve 40, and when the comb teeth 60 contact the upper surface of the filter 20, they can pass through the gaps in the flocs to comb the flocs from the upper surface of the filter 20. The outer ends of the comb teeth 60 can also apply a certain pressure to the filter 20 to scrape and help the flocs to separate from the surface of the filter 20. The scraping action is also beneficial to remove stubborn stains on the filter 20, thereby improving the cleaning effect. When the comb teeth 60 are retracted relative to the sleeve 40, the flocs captured on the comb teeth 60 adhere to the outer surface of the sleeve 40. At this time, the forward and backward movement of the scraper ring 70 can collect the flocs on the outer surface of the sleeve 40, thereby realizing the cleaning and collection of the flocs on the surface of the filter 20, improving the cleaning efficiency of the filter 20, causing less damage to the filter 20, and extending the service life of the filter 20.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A production workshop waste gas treatment device, comprising a box shell (10), an air inlet pipe (110) connected to the upper end of the box shell (10), an air outlet pipe (120) connected to the lower end of the box shell (10), and a filter screen (20) arranged in the box shell (10), characterized in that: It also includes a cleaning component mounted on the upper surface of the filter screen (20) for moving left and right, and a first linear drive mechanism arranged on the box shell (10) for driving the cleaning component to move left and right; The cleaning assembly comprises a housing (30) extending forward and backward and having an opening at the lower end, a sleeve (40) mounted in the housing (30) and rotatable about the central axis of the housing (30), a rotating shaft (50) mounted in the sleeve (40) and rotatable about the central axis of the housing (30), a rotary drive mechanism driving the sleeve (40) and the rotating shaft (50) to rotate, comb teeth (60) arranged on the rotating shaft (50) and extending between the sleeve (40) and the housing (30), and a scraping ring (70) mounted on the outside of the sleeve (40) and movably sleeved to scrape away fluff on the outer surface of the sleeve (40); the comb teeth (60) A plurality of teeth are distributed along the circumference of the rotating shaft (50) to form a tooth group, and a plurality of groups of the tooth groups are distributed along the axial direction of the rotating shaft (50). The sleeve (40) has a through hole for passing the comb teeth (60) and limiting the radial movement of the comb teeth (60) along the sleeve (40). The rotating shaft (50) has a guide groove (510) for guiding the inner end of the comb teeth (60) to move. The rotary drive mechanism can drive the sleeve (40) and the rotating shaft (50) to rotate at different speeds, so that the guide groove (510) guides the inner end of the comb teeth (60) to move outward or inward, thereby controlling the comb teeth (60) to extend or retract relative to the sleeve (40).

2. A production workshop waste gas treatment equipment according to claim 1, characterized in that: The rotary drive mechanism comprises a first friction wheel (420) fixed to the front end of the sleeve (40), a second friction wheel (520) fixed to the rear end of the rotating shaft (50), and an elastic member connected between the sleeve (40) and the rotating shaft (50); a first straight groove (140) extending leftward and rightward is formed on the front inner wall of the housing (10); the first friction wheel (420) is installed in the first straight groove (140), and the surface of the first friction wheel (420) contacts the bottom of the first straight groove (140); a second straight groove (150) extending leftward and rightward is formed on the rear inner wall of the housing (10); the second friction wheel (520) is installed in the second straight groove (150), and the surface of the second friction wheel (520) contacts the bottom of the second straight groove (150).

3. The waste gas treatment equipment for a production workshop according to claim 1, characterized in that: The outer end of the comb teeth (60) has a trumpet portion (610) whose diameter gradually decreases from the outside to the inside, and the outer end of the perforation forms a trumpet mouth (411) for accommodating the trumpet portion (610).

4. The waste gas treatment equipment for a production workshop according to claim 2, characterized in that: The right end of the second straight groove (150) is connected to the release groove (160), and after the second friction wheel (520) enters the release groove (160), the second friction wheel (520) is separated from the groove bottom of the second straight groove (150).

5. The waste gas treatment equipment for a production workshop according to claim 1, characterized in that: The guide groove (510) is a spiral arc groove, and a guide block (620) is fixed to the inner end of the comb tooth (60), and the guide block (620) is movably assembled in the guide groove (510).

6. The waste gas treatment equipment for a production workshop according to claim 1, characterized in that: The cleaning assembly further comprises a singeing mechanism arranged on the cover (30), the singeing mechanism comprising a delivery pipe (80) fixed symmetrically at the opening of the cover (30), and a burner (810) arranged on each of the delivery pipes (80), the burner (810) facing the filter (20).

7. The waste gas treatment equipment for a production workshop according to claim 1, characterized in that: The cleaning component further comprises a blowing and suction mechanism arranged on the housing (30), the blowing and suction mechanism comprising a ventilation ring (90) fixed on the housing (30) and a ventilation pipe (910) fixed on the ventilation ring (90), one end of the ventilation pipe (910) away from the ventilation ring (90) is connected to the outside, a ventilation chamber (530) is formed between the sleeve (40) and the rotating shaft (50), the ventilation ring (90) is connected to the ventilation chamber (530), a flocculation chamber (430) is formed between the sleeve (40) and the housing (30), and an air passage (630) extending along the axial direction of the comb teeth (60) is provided on the outer wall of the comb teeth (60), and the air passage (630) connects the flocculation chamber (430) and the ventilation chamber (530).

8. The waste gas treatment equipment for a production workshop according to claim 1, characterized in that: A limit block (710) is fixed on the scraper ring (70), the cover shell (30) has a limit groove (310) extending along the length direction of the cover shell (30), the limit block (710) is movably assembled in the limit groove (310), and the cleaning component also includes a second linear drive mechanism arranged on the box shell (10) to drive the scraper ring (70) to move forward and backward.

9. The waste gas treatment equipment for a production workshop according to claim 1, characterized in that: The lower surface of the scraper ring (70) has a plane parallel to the filter screen (20).

10. The waste gas treatment equipment for a production workshop according to claim 4, characterized in that: The release groove (160) is a circular groove communicating with the outside, and the box shell (10) is provided with an openable discharge door at the release groove (160).

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