An exhaust gas filtering device for chemical fiber blended yarn production

Abstract

The invention discloses an exhaust gas filtering device for chemical fiber blended yarn production, which belongs to the technical field of chemical fiber blended yarn production. The invention jointly sets a cleaning reminder part, an intelligent control system, etc., so that when the filter is blocked by impurities in a large area, a reminder light will be controlled to start, thereby sending a reminder to the staff, so that the staff can clean the filter when observing the reminder of the reminder light, so that the staff can grasp the time node for cleaning the filter well, which can greatly improve the filtering efficiency, and by limiting the setting of iron plates, magnet blocks, etc., it can effectively prevent the reminder function from being triggered when the filter is not blocked, thereby ensuring the effectiveness of the reminder function, and by setting a spare branch pipe, an electromagnetic valve, etc., when the filter is blocked in a large area, the exhaust gas can flow from the top of the filter to the bottom of the filter through the spare branch pipe, thereby improving the filtering efficiency when the filter is blocked in a large area.

Description

Technical Field

[0001] The invention relates to the technical field of chemical fiber blended yarn production, and more specifically to an exhaust gas filtering device for chemical fiber blended yarn production. Background Art

[0002] The full name of chemical fiber is chemical fiber, which refers to fibers made from natural or synthetic high molecular substances. According to the different sources of raw materials, it can be divided into artificial fibers made from natural high molecular substances and synthetic fibers made from synthetic high molecular substances. Chemical fiber blended yarn is a blended chemical fiber fabric, which is a textile product made by mixing chemical fiber with other natural fibers such as cotton, wool, silk, and linen. It has both the style of polyester and the advantages of cotton fabrics, such as polyester-cotton fabric.

[0003] During the production of chemical fiber blended yarn, a large amount of waste gas is generated. Since the waste gas is mixed with impurities such as thread ends, a filter device is needed to filter the waste gas. The filter device usually relies on its internal filter screen to intercept and filter impurities.

[0004] When using a filter device to treat waste gas, as impurities accumulate on the filter, the filter is prone to large-scale blockage by impurities and needs to be cleaned in time. However, the filter device in the prior art usually does not have a reminder function, and cannot send a reminder to the staff when there is a large-scale blockage in the filter, resulting in the staff being unable to grasp the time node for cleaning the filter well. Since cleaning requires stopping the filtration of waste gas, if cleaning is done too early, the cleaning frequency will increase, thereby reducing the filtration efficiency of the waste gas. If cleaning is done too late, the filter will be blocked in a large area for a long time, which will not only reduce the filtration efficiency, but also easily damage the filter device. Therefore, we propose a waste gas filter device for chemical fiber blended yarn production. Summary of the invention

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide an exhaust gas filtering device for the production of chemical fiber blended yarn. The present invention combines the settings of a cleaning reminder, an intelligent control system, etc., so that when the filter is blocked by impurities on a large scale, the reminder light will be controlled to start, thereby issuing a reminder to the staff, so that the staff can clean the filter when observing the reminder of the reminder light, thereby enabling the staff to grasp the time node for cleaning the filter well, which can greatly improve the filtration efficiency, and by limiting the setting of iron plates, magnet blocks, etc., it can effectively prevent the reminder function from being triggered when the filter is not blocked, thereby ensuring the effectiveness of the reminder function, and by setting a spare branch pipe, an electromagnetic valve, a spare filter, etc., when the filter is blocked on a large scale, the exhaust gas can flow from the top of the filter to the bottom of the filter through the spare branch pipe, thereby improving the filtration efficiency when the filter is blocked on a large scale.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solutions.

[0009] 1. The filter assembly of claim 1, wherein the filter assembly is configured to filter the filter element in a manner that allows air to escape from the filter element and to provide a filter element for filtering the filter element. The filter assembly is configured to filter the filter element in a manner that allows air to escape from the filter element and to provide a filter element for filtering the filter element.

[0010] The intelligent controller is provided with an intelligent control system, which includes a central control unit, an identification feedback module, and a reminder control module. The color recognition sensor is electrically connected to the identification feedback module, the identification feedback module is electrically connected to the central control unit, the central control unit is electrically connected to the reminder control module, and the reminder control module is electrically connected to the reminder light.

[0011] Furthermore, a limiting iron plate is provided on the outer wall of the filter pipe, the limiting iron plate is located outside the through hole, the limiting iron plate is configured to be in an arc shape matching the filter pipe, and the limiting iron plate is movably attached to the outer wall of the filter pipe.

[0012] Furthermore, support blocks are fixedly connected to the inner walls on both sides of the filter pipe, the top of the support block is fixedly connected to a support spring, and the top of the support spring is fixedly connected to the bottom end of the filter screen.

[0013] Furthermore, a connecting rod is fixedly connected to the top of the filter screen, and a magnet block is fixedly connected to one end of the connecting rod away from the filter screen.

[0014] Furthermore, a magnetic isolation box matching the magnet block is fixedly connected to the inner wall of the filter pipe, the top of the magnetic isolation box is set to an open shape, and the magnetic isolation box is made of magnetic isolation material. By setting the limiting iron plate, connecting rod, magnet block and magnetic isolation box, when the impurities do not block the filter screen, the pressure from the exhaust gas on the filter screen is relatively small, and the supporting spring will only be slightly compressed. Under the action of the magnetic attraction between the limiting iron plate and the magnet block, the limiting iron plate will be tightly attached to the outer wall of the filter pipe. At this time, the limiting iron plate can not only play a shielding role to hinder the recognition of the supporting spring, but also play a limiting role. The inner elastic membrane and the outer elastic membrane cannot bulge outward and deform, thereby ensuring the effectiveness of the reminder function. However, when the filter is blocked over a large area, the pressure from the exhaust gas on the filter will also increase significantly, causing the support spring to be deeply compressed, thereby causing the filter and the magnet block to move downward, causing the magnet block to move into the magnetic isolation box. At this time, under the magnetic isolation effect of the magnetic isolation box, the magnetic attraction between the restricting iron plate and the magnet block will be greatly reduced, causing the restricting iron plate to slide downward under the action of gravity, thereby allowing the inner elastic membrane and the outer elastic membrane to bulge outward and deform smoothly, thereby not affecting the triggering of the reminder function and improving practicality.

[0015] Furthermore, a control switch matching the color recognition sensor is fixedly connected to the inner wall of the bottom end of the magnetic isolation box, and the intelligent control system also includes a switch connection module, the control switch is electrically connected to the switch connection module, the switch module is electrically connected to the central control unit, and the central control unit is electrically connected to the color recognition sensor. When the magnet block moves downward into the magnetic isolation box because the filter screen is blocked by impurities over a large area, the magnet block will squeeze and trigger the control switch. The switch connection module can transmit the information that the control switch is triggered to the central control unit, so that the central control unit controls the color recognition sensor to start, so that the color recognition sensor can be automatically started when the filter screen is blocked over a large area, so that the color recognition sensor does not need to be kept in the on state all the time, thereby effectively reducing energy consumption and improving environmental protection and energy-saving performance.

[0016] Furthermore, a connecting plate box matching the limiting iron plate is fixedly connected to the outer wall of the filter pipe, and the top of the connecting plate box is set to be open. When the limiting iron plate slides downward, it will slide into the connecting plate box, thereby preventing the limiting iron plate from being lost.

[0017] Furthermore, a spare branch pipe is provided on the outer wall of the filter pipe, the spare branch pipe is arranged in a U shape, both ends of the spare branch pipe are connected to the inside of the filter pipe, and both ends of the spare branch pipe are respectively located on the upper and lower sides of the filter net.

[0018] Furthermore, a spare filter is fixedly connected to the inner wall of the spare branch pipe, a solenoid valve is arranged on the spare branch pipe, and the intelligent control system also includes a valve control module.

[0019] Furthermore, the central control unit is electrically connected to the valve control module, and the valve control module is electrically connected to the solenoid valve. Through the provision of a spare branch pipe, a solenoid valve, and a spare filter, when the filter is blocked over a large area and the supporting spring recognizes the color of the internal elastic membrane, the central control unit will also open the solenoid valve through the valve control module, so that the exhaust gas can flow from the top of the filter to the bottom of the filter through the spare branch pipe, and the spare filter can filter the exhaust gas, thereby improving the filtration efficiency when the filter is blocked over a large area.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] (1) This solution uses a cleaning reminder and an intelligent control system to filter the exhaust gas. When the exhaust gas is filtered, the exhaust gas can be discharged from the air inlet into the filter pipe, so that the exhaust gas is filtered by the filter and then discharged through the exhaust port. When the filter is not blocked by impurities, the pressure from the exhaust gas on the inner elastic membrane and the outer elastic membrane is relatively small, and the inner elastic membrane and the outer elastic membrane will not be deformed, and the elastic normally closed hole can remain closed. However, when the filter is blocked over a large area, the pressure on the inner elastic membrane and the outer elastic membrane will increase accordingly, so that the inner elastic membrane and the outer elastic membrane will bulge outward from the filter pipe, thereby opening the elastic normally closed hole, and then the support spring can recognize the color of the inner elastic membrane. After the support spring recognizes the color of the inner elastic membrane, the recognition feedback module will feed back this information to the central control unit, so that the central control unit starts the reminder light through the reminder control module, thereby sending a reminder to the staff, so that the staff can clean the filter when they see the reminder of the reminder light, so that the staff can well grasp the time node for cleaning the filter, which can greatly improve the filtering efficiency.

[0023] (2) By setting the limiting iron plate, connecting rod, magnet block and magnetic isolation box, when the filter is not blocked by impurities, the pressure from the exhaust gas on the filter is relatively small, and the support spring will only be slightly compressed. Under the action of the magnetic attraction between the limiting iron plate and the magnet block, the limiting iron plate will be tightly attached to the outer wall of the filter pipe. At this time, the limiting iron plate can not only play a shielding role to hinder the recognition of the support spring, but also play a limiting role, so that the inner elastic membrane and the outer elastic membrane cannot bulge outward and deform, thereby ensuring the effectiveness of the reminder function. However, when the filter is blocked over a large area, the pressure from the exhaust gas on the filter will also increase significantly, so that the support spring will be deeply compressed, so that the filter and the magnet block will move downward, causing the magnet block to move into the magnetic isolation box. At this time, under the magnetic isolation effect of the magnetic isolation box, the magnetic attraction between the limiting iron plate and the magnet block will be greatly reduced, so that the limiting iron plate will slide downward under the action of gravity, so that the inner elastic membrane and the outer elastic membrane can smoothly bulge outward and deform, thereby not affecting the triggering of the reminder function, thereby improving practicality.

[0024] (3) A control switch matching the color recognition sensor is fixedly connected to the inner wall at the bottom end of the magnetic isolation box. The intelligent control system also includes a switch connection module. The control switch is electrically connected to the switch connection module. The switch module is electrically connected to the central control unit. The central control unit is electrically connected to the color recognition sensor. When the magnet block moves downward into the magnetic isolation box due to the large-scale blockage of the filter screen by impurities, the magnet block squeezes and triggers the control switch. The switch connection module can transmit the information of the control switch being triggered to the central control unit, so that the central control unit controls the color recognition sensor to start, so that the color recognition sensor can be automatically started when the filter screen is blocked on a large area, so that the color recognition sensor does not need to be kept in the turned-on state all the time, thereby effectively reducing energy consumption and improving environmental protection and energy-saving performance.

[0025] (4) A plate box matching the limiting iron plate is fixedly connected to the outer wall of the filter pipe. The top of the plate box is set to be open. When the limiting iron plate slides downward, it will slide into the plate box, thereby preventing the limiting iron plate from being lost.

[0026] (5) By setting up the spare branch pipe, the solenoid valve, and the spare filter, when the filter is blocked over a large area and the supporting spring recognizes the color of the inner elastic membrane, the central control unit will also open the solenoid valve through the valve control module, so that the exhaust gas can flow from the top of the filter to the bottom of the filter through the spare branch pipe, and the spare filter can filter the exhaust gas, thereby improving the filtering efficiency when the filter is blocked over a large area. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front view structural schematic diagram of the present invention;

[0028] Figure 2It is a schematic diagram of the cross-sectional structure of the filtering pipeline of the present invention;

[0029] Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 4 It is a schematic side view of the structure of the external elastic membrane of the present invention;

[0031] Figure 5 It is a schematic diagram of the cross-sectional structure of the top view of the limiting iron plate of the present invention;

[0032] Figure 6 It is a schematic cross-sectional structure diagram of the connecting plate box of the present invention;

[0033] Figure 7 It is a schematic cross-sectional view of the magnetic isolation box of the present invention;

[0034] Figure 8 It is a schematic cross-sectional structure diagram of the spare branch pipe of the present invention;

[0035] Fig. 9 It is a schematic diagram of the pictographic changes in the filter pipe when the filter screen of the present invention is blocked in a large area;

[0036] Fig.10 For the present invention Fig. 9 A schematic diagram of the enlarged structure at B in the middle;

[0037] Fig.11 It is a system structure block diagram of the intelligent control system of the present invention.

[0038] Description of the numbers in the figure:

[0039] 101. filtration duct; 102. air inlet; 103. exhaust port; 104. filter screen; 105. support block; 106. support spring; 201. through hole; 202. inner elastic membrane; 203. outer elastic membrane; 204. elastic normally closed hole; 205. support plate; 206. color recognition sensor; 207. reminder light; 208. intelligent controller; 301. limiting iron plate; 302. connecting rod; 303. magnet block; 304. magnetic isolation box; 305. connecting plate box; 306. control switch; 401. spare branch pipe; 402. solenoid valve; 403. spare filter screen. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Embodiment 1:

[0044] See also Figure 1-4 A waste gas filtering device for chemical fiber blended yarn production includes a filter pipe 101, an air inlet 102 and an exhaust port 103 are respectively arranged at the upper and lower ends of the filter pipe 101, a filter screen 104 matching with the filter pipe 101 is movably installed in the filter pipe 101, the filter screen 104 is slidably and sealedly connected to the inner wall of the filter pipe 101, a cleaning reminder is arranged in the filter pipe 101, and the cleaning reminder includes a through hole 201 opened on the outer wall of the filter pipe 101, the through hole 201 is located above the filter screen 104, an inner elastic membrane 202 and an outer elastic membrane 203 are sealed and fixedly connected to the inner wall of the through hole 201, and the outer elastic membrane 203 It is arranged on the side of the inner elastic membrane 202 away from the inside of the filter pipe 101, and the outer elastic membrane 203 is in contact with the inner elastic membrane 202, and an elastic normally closed hole 204 is opened on the outer elastic membrane 203. The cleaning reminder also includes a support plate 205 fixedly installed on the outer wall of the filter pipe 101, and a color recognition sensor 206 is fixedly installed on the support plate 205. The height of the color recognition sensor 206 matches the through hole 201, and the color of the inner elastic membrane 202 matches the color recognition sensor 206. A reminder light 207 is fixedly connected to the top of the support plate 205, and an intelligent controller 208 is fixedly installed on the support plate 205.

[0045] See also Fig.11An intelligent control system is provided in the intelligent controller 208, and the intelligent control system includes a central control unit, an identification feedback module, and a reminder control module. The color recognition sensor 206 is electrically connected to the identification feedback module, the identification feedback module is electrically connected to the central control unit, the central control unit is electrically connected to the reminder control module, and the reminder control module is electrically connected to the reminder light 207.

[0046] See also Figure 1-4 and Figure 9-11 By combining the cleaning reminder and the intelligent control system, when the exhaust gas is filtered, the exhaust gas can be discharged from the air inlet 102 into the filter pipe 101, so that the exhaust gas is filtered by the filter 104 and then discharged through the exhaust port 103. When the filter 104 is not blocked by impurities, the pressure from the exhaust gas on the inner elastic membrane 202 and the outer elastic membrane 203 is relatively small, and the inner elastic membrane 202 and the outer elastic membrane 203 will not be deformed, and the elastic normally closed hole 204 can remain in a closed state. However, when the filter 104 is blocked over a large area, the pressure on the inner elastic membrane 202 and the outer elastic membrane 203 will also increase. Figure 9-10 As shown, the inner elastic membrane 202 and the outer elastic membrane 203 will bulge and deform outward from the filter pipe 101, thereby opening the elastic normally closed hole 204, and then the support spring 106 can recognize the color of the inner elastic membrane 202. After the support spring 106 recognizes the color of the inner elastic membrane 202, the recognition feedback module will feed back this information to the central control unit, so that the central control unit starts the reminder light 207 through the reminder control module, thereby sending a reminder to the staff, so that the staff can clean the filter net 104 when observing the reminder of the reminder light 207, so that the staff can well grasp the time node for cleaning the filter net 104, which can greatly improve the filtration efficiency.

[0047] See also Figure 1-3 and Figure 5-7A limiting iron plate 301 is provided on the outer wall of the filter pipe 101, and the limiting iron plate 301 is located on the outer side of the through hole 201. The limiting iron plate 301 is set to a circular arc shape matching the filter pipe 101, and the limiting iron plate 301 is movably attached to the outer wall of the filter pipe 101, and the inner walls on both sides of the filter pipe 101 are fixedly connected with support blocks 105, and the top of the support block 105 is fixedly connected with a support spring 106, and the top of the support spring 106 is fixedly connected to the bottom end of the filter screen 104, and the top of the filter screen 104 is fixedly connected with a connecting rod 302, and the end of the connecting rod 302 away from the filter screen 104 is fixedly connected with a magnet block 303, and a magnetic isolation box 304 matching the magnet block 303 is fixedly connected to the inner wall of the filter pipe 101, and the top of the magnetic isolation box 304 is set to an opening shape, and the magnetic isolation box 304 is made of magnetic isolation material. The arrangement of the connecting rod 302, the magnet block 303, and the magnetic isolation box 304 ensures that when the filter screen 104 is not blocked by impurities, the pressure from the exhaust gas on the filter screen 104 is relatively small, and the support spring 106 will only be slightly compressed. Under the action of the magnetic attraction between the limiting iron plate 301 and the magnet block 303, the limiting iron plate 301 will be tightly attached to the outer wall of the filter pipe 101. At this time, the limiting iron plate 301 can not only play a shielding role, hindering the recognition of the support spring 106, but also play a limiting role, so that the inner elastic membrane 202 and the outer elastic membrane 203 cannot bulge outward and deform, thereby ensuring the effectiveness of the reminder function. However, when the filter screen 104 is blocked over a large area, the pressure from the exhaust gas on the filter screen 104 will also increase significantly, so that the support spring 106 will be deeply compressed, so that the filter screen 104 and the magnet block 303 will move downward. Fig. 9 As shown, the magnet block 303 is moved into the magnetic isolation box 304. At this time, under the magnetic isolation effect of the magnetic isolation box 304, the magnetic attraction between the limiting iron plate 301 and the magnet block 303 will be greatly reduced, so that the limiting iron plate 301 will slide downward under the action of gravity, so that the inner elastic membrane 202 and the outer elastic membrane 203 can be smoothly bulged and deformed outward, thereby not affecting the triggering of the reminder function, thereby improving practicality.

[0048] See also Figure 5-7A control switch 306 matching the color recognition sensor 206 is fixedly connected to the inner wall of the bottom end of the magnetic isolation box 304. The intelligent control system also includes a switch connection module. The control switch 306 is electrically connected to the switch connection module. The switch module is electrically connected to the central control unit. The central control unit is electrically connected to the color recognition sensor 206. When the magnet block 303 moves downward into the magnetic isolation box 304 due to the large-scale blockage of the filter screen 104 by impurities, the magnet block 303 will squeeze and trigger the control switch 306. The switch connection module can transmit the information that the control switch 306 is triggered to the central control unit. Unit, so that the central control unit controls the color recognition sensor 206 to start, so that the color recognition sensor 206 can be automatically started when the filter screen 104 is blocked in a large area, so that the color recognition sensor 206 does not need to be kept in the open state all the time, thereby effectively reducing energy consumption and improving environmental protection and energy-saving performance. A connecting plate box 305 matching the limiting iron plate 301 is fixedly connected to the outer wall of the filter pipe 101, and the top of the connecting plate box 305 is set to an opening shape. When the limiting iron plate 301 slides downward, it will slide into the connecting plate box 305, thereby preventing the limiting iron plate 301 from being lost.

[0049] See also Figure 1-2 and Figure 8 The outer wall of the filter pipe 101 is connected with a spare branch pipe 401, which is arranged in a U shape. Both ends of the spare branch pipe 401 are connected with the inside of the filter pipe 101, and the two ends of the spare branch pipe 401 are respectively located at the upper and lower sides of the filter screen 104. The inner wall of the spare branch pipe 401 is fixedly connected with a spare filter screen 403, and the spare branch pipe 401 is provided with a solenoid valve 402. The intelligent control system also includes a valve control module, the central control unit is electrically connected to the valve control module, and the valve control module is electrically connected to the electric The magnetic valve 402 is electrically connected. Through the arrangement of the spare branch pipe 401, the solenoid valve 402 and the spare filter 403, when the filter 104 is blocked over a large area and the support spring 106 recognizes the color of the internal elastic membrane 202, the central control unit will also open the solenoid valve 402 through the valve control module, so that the exhaust gas can flow from the top of the filter 104 to the bottom of the filter 104 through the spare branch pipe 401, and the spare filter 403 can filter the exhaust gas, thereby improving the filtering efficiency when the filter 104 is blocked over a large area.

[0050] The present invention combines the cleaning reminder, the intelligent control system, etc., so that when the filter 104 is blocked by impurities on a large scale, the reminder light 207 will be controlled to start, thereby sending a reminder to the staff, so that the staff can clean the filter 104 when observing the reminder of the reminder light 207, so that the staff can have a good grasp of the time node for cleaning the filter 104, which can greatly improve the filtration efficiency, and by limiting the setting of the iron plate 301, the magnet block 303, etc., it can effectively prevent the reminder function from being triggered when the filter 104 is not blocked, thereby ensuring the effectiveness of the reminder function, and by setting the spare branch pipe 401, the solenoid valve 402, the spare filter 403, etc., when the filter 104 is blocked on a large scale, the exhaust gas can flow from the top of the filter 104 to the bottom of the filter 104 through the spare branch pipe 401, thereby improving the filtration efficiency when the filter 104 is blocked on a large scale.

[0051] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An exhaust gas filtering device for producing chemical fiber blended yarn, comprising a filtering pipe (101), wherein the filtering pipe (101) is provided with an air inlet (102) and an exhaust port (103) at the upper and lower ends thereof, respectively, and a matching filter screen (104) is movably installed in the filtering pipe (101), characterized in that: The filter screen (104) is slidably sealedly connected to the inner wall of the filter pipe (101); a cleaning reminder is provided in the filter pipe (101); the cleaning reminder comprises a through hole (201) provided on the outer wall of the filter pipe (101); the through hole (201) is located above the filter screen (104); an inner elastic membrane (202) and an outer elastic membrane (203) are sealedly fixedly connected to the inner wall of the through hole (201); the outer elastic membrane (203) is provided at a position away from the inner elastic membrane (202) and the inside of the filter pipe (101). The outer elastic membrane (203) is attached to the inner elastic membrane (202), the outer elastic membrane (203) is provided with an elastic normally closed hole (204), the cleaning reminder also includes a support plate (205) fixedly mounted on the outer wall of the filter pipe (101), a color recognition sensor (206) is fixedly mounted on the support plate (205), the height of the color recognition sensor (206) matches the through hole (201), the color of the inner elastic membrane (202) matches the color recognition sensor (206), and the support plate (205) is provided with a color recognition sensor (206). 05) is fixedly connected to the top of a warning light (207), an intelligent controller (208) is fixedly mounted on the support plate (205), a limiting iron plate (301) is arranged on the outer wall of the filtering pipe (101), the limiting iron plate (301) is located outside the through hole (201), and the limiting iron plate (301) is movably attached to the outer wall of the filtering pipe (101), support blocks (105) are fixedly connected to the inner walls of both sides of the filtering pipe (101), and a support spring (106) is fixedly connected to the top of the support block (105). The top end of the support spring (106) is fixedly connected to the bottom end of the filter screen (104); the top end of the filter screen (104) is fixedly connected to a connecting rod (302); one end of the connecting rod (302) away from the filter screen (104) is fixedly connected to a magnet block (303); a magnetic isolation box (304) matching the magnet block (303) is fixedly connected to the inner wall of the filter pipe (101); and a control switch (306) matching the color recognition sensor (206) is fixedly connected to the inner wall of the bottom end of the magnetic isolation box (304).

2. The exhaust gas filtering device for producing chemical fiber blended yarn according to claim 1, characterized in that: The intelligent controller (208) is provided with an intelligent control system, the intelligent control system comprising a central control unit, an identification feedback module, and a reminder control module; the color recognition sensor (206) is electrically connected to the identification feedback module, the identification feedback module is electrically connected to the central control unit, the central control unit is electrically connected to the reminder control module, the reminder control module is electrically connected to the reminder light (207), and the limiting iron plate (301) is arranged to be in an arc shape that matches the filtering pipe (101).

3. The exhaust gas filtering device for producing chemical fiber blended yarn according to claim 2, characterized in that: The top end of the magnetic isolation box (304) is arranged to be open, and the magnetic isolation box (304) is made of magnetic isolation material.

4. The exhaust gas filtering device for producing chemical fiber blended yarn according to claim 3, characterized in that: The intelligent control system further comprises a switch connection module, the control switch (306) is electrically connected to the switch connection module, the switch connection module is electrically connected to a central control unit, and the central control unit is electrically connected to a color recognition sensor (206).

5. The exhaust gas filtering device for producing chemical fiber blended yarn according to claim 4, characterized in that: A plate connection box (305) matching the limiting iron plate (301) is fixedly connected to the outer wall of the filtering pipe (101), and the top end of the plate connection box (305) is arranged to be open.

6. The exhaust gas filtering device for producing chemical fiber blended yarn according to claim 2, characterized in that: A spare branch pipe (401) is provided on the outer wall of the filter pipe (101), the spare branch pipe (401) is arranged in a U shape, both ends of the spare branch pipe (401) are connected to the inside of the filter pipe (101), and the two ends of the spare branch pipe (401) are respectively located on the upper and lower sides of the filter screen (104).

7. The exhaust gas filtering device for producing chemical fiber blended yarn according to claim 6, characterized in that: A spare filter screen (403) is fixedly connected to the inner wall of the spare branch pipe (401), a solenoid valve (402) is provided on the spare branch pipe (401), and the intelligent control system further comprises a valve control module.

8. The exhaust gas filtering device for producing chemical fiber blended yarn according to claim 7, characterized in that: The central control unit is electrically connected to the valve control module, and the valve control module is electrically connected to the solenoid valve (402).

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