Waste gas purification treatment equipment for PVC (polyvinyl chloride) color film production and use method of waste gas purification treatment equipment

Abstract

The invention relates to the technical field of waste gas purification treatment, in particular to waste gas purification treatment equipment for PVC color film production and a using method thereof.The waste gas purification treatment equipment is characterized by comprising a purification box, a gas inlet pipe is fixedly installed at a gas inlet of the purification box, and a gas outlet pipe is fixedly installed at a gas outlet of the purification box; during use, the driving motor can be started to drive the centrifugal impeller to rotate, negative pressure suction force is generated to actively suck waste gas into the gas inlet pipe, the waste gas is primarily filtered through the filter screen to filter out large-particle impurities, and the filtered waste gas enters the purification box, is uniformly distributed in a purification area under the action of centrifugal force and is in full contact with the honeycomb activated carbon column; in the operation process, a reciprocating screw rod rotates under the transmission action of a third bevel gear, a fourth bevel gear, a fifth bevel gear and a sixth bevel gear, and the reciprocating screw rod is matched with a ball nut to drive an inner plate and a cleaning brush to move up and down in a reciprocating mode so as to automatically clean attachments on the surface of the filter screen.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas purification treatment, and particularly relates to a waste gas purification treatment device for PVC color film production and its use method. Background Art

[0002] During the production process of PVC color film, due to processes such as heating, coating, and printing, various organic waste gases and other harmful gases are usually released, such as hydrogen chloride, toluene, ethyl acetate, etc. These waste gases not only have a pungent smell, posing a potential threat to the health of operators, but also causing environmental pollution. Therefore, an efficient waste gas purification device must be built in the PVC color film production line.

[0003] However, conventional purification devices mostly rely on passive air intake, with uneven air flow distribution, resulting in insufficient residence time of waste gas in the purification area and low purification efficiency; at the same time, if the waste gas contains large particle impurities and is not intercepted in advance, these particles will enter the pores of the purification medium, causing blockage, reducing activity and shortening the service life of the equipment. To solve the above problems, we propose a waste gas purification treatment device for PVC color film production and its use method. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a waste gas purification treatment device for PVC color film production and its use method, which solves the problems raised in the background art.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A waste gas purification treatment device for PVC color film production, comprising: a purification box, an air inlet pipe is fixedly installed at the air inlet of the purification box, an air outlet pipe is fixedly installed at the air outlet of the purification box, and a control panel is embedded on one side of the purification box; a purification component, the purification component is arranged inside the air inlet pipe and is used for purifying waste gas; a cleaning component, the cleaning component is arranged on the top surface of the purification box and is used for cleaning attachments.

[0007] By adopting the above technical solution, by setting the purification component, it is used to actively extract waste gas and then evenly distribute it inside the purification box, ensuring that the waste gas is fully in contact with the purification component to improve the purification efficiency.

[0008] Preferably, the purification component includes: an inner ring, the inner ring is fixedly installed inside the air inlet pipe, a connecting rod is fixedly installed inside the inner ring, one end of the connecting rod is fixedly installed with a first bearing, a centrifugal impeller is fixedly installed inside the first bearing, and a first helical gear is fixedly installed at one end of the centrifugal impeller.

[0009] By adopting the above technical solution and setting a centrifugal impeller, the rotation of the centrifugal impeller can generate negative pressure suction to actively inhale the waste gas for subsequent purification treatment.

[0010] Preferably, the purification component also includes: a mounting hole, which is opened on the top surface of the air intake pipe, a second bearing is fixedly installed inside the mounting hole, a double-headed bevel gear is fixedly installed inside the second bearing, one end of the double-headed bevel gear is meshed with the first bevel gear, a drive motor is fixedly installed on the top surface of the air intake pipe, the drive motor is electrically connected to the control panel, a second bevel gear is fixedly installed on one end of the output shaft of the drive motor, and the second bevel gear is meshed with the other end of the double-headed bevel gear.

[0011] By adopting the above technical solution and setting a double-headed bevel gear, the second bevel gear can be driven to rotate by turning on the driving motor during use, and then the centrifugal impeller can be driven to rotate through the meshing of the double-headed bevel gear and the first bevel gear, thereby achieving the purpose of actively extracting exhaust gas.

[0012] Preferably, the purification component also includes: a plurality of thread grooves, wherein the plurality of thread grooves are all opened on the top surface of the purification box, the internal threads of the thread grooves are connected with thread columns, a honeycomb activated carbon column is fixedly installed on the internal bottom surface of the thread column, a gas concentration detector is fixedly installed at one end of the air outlet pipe, and the gas concentration detector is electrically connected to the control panel.

[0013] By adopting the above technical solution and setting up a honeycomb activated carbon column, harmful substances in the exhaust gas can be adsorbed by the honeycomb activated carbon column during use, and the effect of quick disassembly and assembly of the honeycomb activated carbon column can be achieved through the threaded connection of the threaded groove and the threaded column. At the same time, the exhaust gas concentration can be monitored in real time by a gas concentration detector to determine the saturation of the honeycomb activated carbon column.

[0014] Preferably, the cleaning assembly includes: a top hole, which is opened on the top surface of the purification box, an inner frame is provided inside the top hole, a filter is fixedly installed on one side of the inner frame, an inner plate is provided inside the inner frame, a cleaning brush is fixedly installed on one side of the inner plate, a ball nut is fixedly installed inside the inner plate, and a reciprocating screw is connected to the inside of the ball nut.

[0015] By adopting the above technical solution, a filter is set up to pre-intercept large particles of impurities in the incoming exhaust gas, so as to prevent large particles from blocking the honeycomb activated carbon column and affecting its service life. At the same time, the reciprocating screw can be rotated in conjunction with the ball nut to realize the up and down movement of the inner plate to drive the cleaning brush to clean the attachments on the filter, thereby ensuring long-term operation.

[0016] Preferably, the cleaning component further includes: an inner hole opened on the top surface of the inner frame. A third bearing is fixedly installed inside the inner hole, and a third helical gear is fixedly installed inside the third bearing. The third helical gear is fixedly connected to the reciprocating lead screw. A bearing plate is fixedly installed inside the inner frame, and a fourth helical gear is fixedly installed inside the bearing plate. The fourth helical gear meshes with the third helical gear. An outer hole is opened on one side of the purification box, and a taper sleeve tightening bearing is fixedly installed inside the outer hole. A key shaft is sleeved inside the taper sleeve tightening bearing. A key groove is opened on one side of the fourth helical gear. A fifth helical gear is fixedly installed at one end of the key shaft. A bearing seat is fixedly installed on one side of the purification box, and a sixth helical gear is fixedly installed inside the bearing seat. The sixth helical gear meshes with the fifth helical gear, and one end of the sixth helical gear is fixedly connected to the double-headed helical gear.

[0017] By adopting the above technical solution, by setting the taper sleeve tightening bearing, during use, the rotation of the double-headed helical gear can drive the sixth helical gear to rotate, and then rotate the fifth helical gear to drive the fourth helical gear to rotate, so as to realize driving the reciprocating lead screw to rotate through the third helical gear, achieving the reciprocating movement of the inner plate to clean the attachments on the filter screen. At the same time, by loosening the taper sleeve tightening bearing to separate the key shaft from the key groove, the inner frame can be taken out to maintain the filter screen.

[0018] Preferably, a recovery frame is arranged inside the inner frame. A side hole is opened on one side of the inner frame, and a chute is opened on the bottom surface inside the inner frame. A slider is fixedly installed on the bottom surface of the recovery frame.

[0019] By adopting the above technical solution, by setting the recovery frame, it is used to collect the attachments swept by the cleaning brush, and at the same time, the recovery frame can be drawn out through the side hole to discharge the attachments.

[0020] Preferably, limiting grooves are respectively opened on the left and right sides inside the inner frame, and limiting blocks are respectively fixedly installed on the left and right sides of the inner plate. The limiting blocks are sleeved with the adjacent limiting grooves.

[0021] By adopting the above technical solution, by setting the limiting blocks, they are used to be sleeved with the limiting grooves to realize the limitation of the inner plate.

[0022] A usage method of an exhaust gas purification and treatment device for PVC color film production includes the following steps:

[0023] Step 1: Start the driving motor to drive the second bevel gear to rotate, and then drive the centrifugal impeller to rotate through the double-headed bevel gear and the first bevel gear, so as to generate negative pressure suction to actively suck the exhaust gas into the intake pipe. The exhaust gas first passes through the filter screen for preliminary filtration to remove large particles of impurities, so as to prevent the impurities from entering the purification area and clogging the honeycomb activated carbon column to affect the purification efficiency.

[0024] Step 2: The exhaust gas after preliminary filtration enters the purification box and is evenly distributed in the purification area under the action of centrifugal force, and is fully in contact with the honeycomb activated carbon column to adsorb harmful substances therein. At the same time, the gas concentration detector at the end of the outlet pipe monitors the concentration of harmful components in the purified gas in real time, and feeds back the data to the control panel to determine whether the honeycomb activated carbon column has reached a saturated state and prompts replacement;

[0025] Step three, during operation, the reciprocating screw rotates under the transmission action of the third bevel gear, the fourth bevel gear, the fifth bevel gear and the sixth bevel gear, and cooperates with the ball nut to drive the inner plate and the cleaning brush to move up and down to automatically clean the attachments on the surface of the filter. The cleaned particles fall into the recovery frame. If it is necessary to maintain the filter or clean the recovery frame, the cone sleeve tightening bearing can be loosened to disengage the key shaft from the key slot, so as to facilitate the removal of the inner frame for replacement or deep cleaning of the filter.

[0026] In summary, the present invention mainly has the following beneficial effects:

[0027] By setting up a purification component, the exhaust gas can be actively extracted and evenly distributed inside the purification box, ensuring that the exhaust gas is fully in contact with the purification component to improve the purification efficiency. By setting up a centrifugal impeller, the rotation of the centrifugal impeller can generate negative pressure suction to actively inhale the exhaust gas for subsequent purification treatment.

[0028] By setting a double-headed bevel gear, when in use, the second bevel gear can be driven to rotate by turning on the driving motor, and then the centrifugal impeller is driven to rotate through the engagement of the double-headed bevel gear and the first bevel gear, thereby achieving the purpose of actively extracting exhaust gas; by setting a honeycomb activated carbon column, harmful substances in the exhaust gas can be adsorbed by the honeycomb activated carbon column when in use, and the effect of quick disassembly and assembly of the honeycomb activated carbon column can be achieved through the threaded connection of the thread groove and the threaded column, and the concentration of the discharged exhaust gas can be monitored in real time by the gas concentration detector to determine the saturation of the honeycomb activated carbon column.

[0029] By setting up a filter, it is used to pre-intercept large particles of impurities in the incoming exhaust gas to prevent large particles from blocking the honeycomb activated carbon column and affecting its service life. At the same time, the reciprocating screw can be rotated in conjunction with the ball nut to realize the up and down movement of the inner plate to drive the cleaning brush to clean the attachments on the filter, thereby ensuring long-term operation. By setting up a tapered sleeve tightening bearing, the double-headed bevel gear can be rotated to drive the sixth bevel gear to rotate, and then the fifth bevel gear is rotated to drive the fourth bevel gear to rotate, thereby realizing the rotation of the reciprocating screw through the third bevel gear, so that the reciprocating inner plate can be moved back and forth to clean the attachments on the filter by the cleaning brush. At the same time, the tapered sleeve tightening bearing can be loosened to separate the key shaft from the keyway, and the inner frame can be taken out to maintain the filter.

[0030] A recovery frame is provided to collect and clean the attachments swept by the brush. The recovery frame can be pulled out through the side hole to discharge the attachments. A limit block is provided to limit the inner plate together with the limit groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 It is a schematic diagram of the inner ring structure of the present invention;

[0033] Figure 3 yes Figure 1 A is a schematic diagram of the partially enlarged structure of the middle part;

[0034] Figure 4 It is a schematic diagram of the inner frame structure of the present invention;

[0035] Figure 5 yes Figure 4 A schematic diagram of the partially enlarged structure of B in the middle;

[0036] Figure 6 It is a schematic diagram of the key shaft structure of the present invention;

[0037] Figure 7 It is a schematic diagram of the recycling frame structure of the present invention.

[0038] Reference numerals: 100, purification box; 200, intake pipe; 300, outlet pipe; 400, control panel; 500, purification component; 501, inner ring; 502, connecting rod; 503, first bearing; 504, centrifugal impeller; 505, first helical gear; 506, mounting hole; 507, second bearing; 508, double-headed helical gear; 509, drive motor; 510, second helical gear; 511, threaded groove; 512, threaded post; 513, honeycomb activated carbon column; 514, gas concentration detector; 600, cleaning component; 601, top hole; 602, inner frame; 603, filter screen; 604, inner plate; 605, cleaning brush; 606, ball nut; 607, reciprocating lead screw; 608, inner hole; 609, third bearing; 610, third helical gear; 611, bearing plate; 612, fourth helical gear; 613, outer hole; 614, taper sleeve tightening bearing; 615, key shaft; 616, keyway; 617, fifth helical gear; 618, bearing seat; 619, sixth helical gear; 700, recovery box; 701, side hole; 702, chute; 703, slider; 800, limiting groove; 801, limiting block. Detailed implementation manners

[0039] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] The following embodiments are used to illustrate the present invention, but cannot be used to limit the protection scope of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement of the method of the present invention under the premise of the concept of the present invention shall fall within the protection scope required by the present invention.

[0041] Reference Figures 1-7, An exhaust gas purification and treatment device for PVC color film production, comprising: a purification box 100, an intake pipe 200 is fixedly installed at the intake port of the purification box 100, an outlet pipe 300 is fixedly installed at the outlet port of the purification box 100, a control panel 400 is embedded on one side of the purification box 100, a purification component 500 is arranged inside the intake pipe 200 for purifying exhaust gas, and a cleaning component 600 is arranged on the top surface of the purification box 100 for cleaning attachments. By setting the purification component 500, it is used to actively extract exhaust gas and evenly distribute it inside the purification box 100 to ensure that the exhaust gas is in full contact with the purification component 500 to improve the purification efficiency. The purification component 500 includes: an inner ring 501, the inner ring 501 is fixedly installed inside the intake pipe 200, a connecting rod 502 is fixedly installed inside the inner ring 501, one end of the connecting rod 502 is fixedly installed with a first bearing 503, a centrifugal impeller 504 is fixedly installed inside the first bearing 503, and a first helical gear 505 is fixedly installed at one end of the centrifugal impeller 504. By setting the centrifugal impeller 504, during use, the centrifugal impeller 504 can rotate to generate negative pressure suction to actively suck in exhaust gas for subsequent purification treatment.

[0042] Reference Figures 1-7, the purification component 500 further includes: a mounting hole 506, the mounting hole 506 is opened on the top surface of the intake pipe 200, a second bearing 507 is fixedly installed inside the mounting hole 506, a double-headed helical gear 508 is fixedly installed inside the second bearing 507, one end of the double-headed helical gear 508 is engaged with the first helical gear 505, a driving motor 509 is fixedly installed on the top surface of the intake pipe 200, the driving motor 509 is electrically connected to the control panel 400, and one end of the output shaft of the driving motor 509 is fixedly installed with a second helical gear 510, the second helical gear 510 is engaged with the other end of the double-headed helical gear 508. By setting the double-headed helical gear 508, when in use, the driving motor 509 can be turned on to drive the second helical gear 510 to rotate, and then drive the centrifugal impeller 504 to rotate through the engagement of the double-headed helical gear 508 and the first helical gear 505, so as to achieve the purpose of actively extracting waste gas. The purification component 500 further includes: a plurality of threaded grooves 511, the plurality of threaded grooves 511 are all opened on the top surface of the purification box 100, a threaded column 512 is threadedly connected inside the threaded groove 511, a honeycomb activated carbon column 513 is fixedly installed on the inner bottom surface of the threaded column 512, one end of the exhaust pipe 300 is fixedly installed with a gas concentration detector 514, and the gas concentration detector 514 is electrically connected to the control panel 400. By setting the honeycomb activated carbon column 513, when in use, the harmful substances in the waste gas can be adsorbed by the honeycomb activated carbon column 513, and the effect of quickly disassembling and assembling the honeycomb activated carbon column 513 can be achieved through the threaded connection of the threaded groove 511 and the threaded column 512. At the same time, the concentration of the discharged waste gas can be monitored in real time through the gas concentration detector 514 to judge the saturation degree of the honeycomb activated carbon column 513.

[0043] Reference Figures 1-7The cleaning assembly 600 includes: a top hole 601, which is opened on the top surface of the purification box 100, an inner frame 602 is sleeved inside the top hole 601, a filter 603 is fixedly installed on one side of the inner frame 602, an inner plate 604 is arranged inside the inner frame 602, a cleaning brush 605 is fixedly installed on one side of the inner plate 604, a ball nut 606 is fixedly installed inside the inner plate 604, and a reciprocating screw 607 is connected inside the ball nut 606. The filter 603 is provided to pre-intercept large particles of impurities in the incoming exhaust gas to prevent large particles from blocking the honeycomb activated carbon column 513 and affecting its service life. At the same time, the reciprocating screw 607 can be rotated in conjunction with the ball nut 606 to realize the up and down movement of the inner plate 604 to drive the cleaning brush 605 to clean the attachments on the filter 603 to ensure long-term operation. The cleaning component 600 also includes: an inner hole 608, the inner hole 608 is opened on the top surface of the inner frame 602, the inner hole 608 is fixedly installed with a third bearing 609, the inner bearing 609 is fixedly installed with a third bevel gear 610, the third bevel gear 610 is fixedly connected to the reciprocating screw 607, the inner frame 602 is fixedly installed with a bearing plate 611, and the inner bearing plate 611 is fixedly installed with A fourth bevel gear 612 is meshed with the third bevel gear 610, an outer hole 613 is provided on one side of the purification box 100, a tapered sleeve tightening bearing 614 is fixedly installed inside the outer hole 613, a key shaft 615 is sleeved inside the tapered sleeve tightening bearing 614, a key slot 616 is provided on one side of the fourth bevel gear 612, a fifth bevel gear 617 is fixedly installed on one end of the key shaft 615, a bearing seat 618 is fixedly installed on one side of the purification box 100, a sixth bevel gear 619 is fixedly installed inside the bearing seat 618, the sixth bevel gear 619 is meshed with the fifth bevel gear 617, and the sixth bevel gear 619 is meshed with the fifth bevel gear 617. One end of the gear 619 is fixedly connected to the double-headed bevel gear 508. By setting a tapered sleeve tightening bearing 614, the double-headed bevel gear 508 can be rotated to drive the sixth bevel gear 619 to rotate, and then the fifth bevel gear 617 is rotated to drive the fourth bevel gear 612 to rotate, thereby realizing the rotation of the reciprocating screw rod 607 through the third bevel gear 610, so as to achieve the reciprocating movement of the inner plate 604 and the cleaning brush 605 to clean the attachments on the filter screen 603. At the same time, the tapered sleeve tightening bearing 614 can be loosened to separate the key shaft 615 from the key slot 616, and the inner frame 602 can be taken out to maintain the filter screen 603.

[0044] refer to Figures 1-7A recycling frame 700 is arranged inside the inner frame 602, a side hole 701 is opened on one side of the inner frame 602, a slide groove 702 is opened on the inner bottom surface of the inner frame 602, and a slider 703 is fixedly installed on the bottom surface of the recycling frame 700. The recycling frame 700 is arranged to collect the attachments swept by the cleaning brush 605, and the recycling frame 700 can be pulled out through the side hole 701 to discharge the attachments. Limiting grooves 800 are respectively arranged on the left and right sides of the inner frame 602, and limiting blocks 801 are respectively fixedly installed on the left and right sides of the inner plate 604. The limiting blocks 801 are sleeved together with the adjacent limiting grooves 800, and the limiting blocks 801 are arranged to be sleeved with the limiting grooves 800 to achieve the limitation of the inner plate 604.

[0045] A method for using an exhaust gas purification treatment device for PVC color film production comprises the following steps:

[0046] Step 1: Start the drive motor 509 to drive the second bevel gear 510 to rotate, and then drive the double-headed bevel gear 508 and the first bevel gear 505 to drive the centrifugal impeller 504 to rotate, generating negative pressure suction to actively suck the exhaust gas into the intake pipe 200. The exhaust gas is first filtered through the filter 603 to remove large particles of impurities to prevent them from entering the purification area and clogging the honeycomb activated carbon column 513 to affect the purification efficiency.

[0047] Step 2: The exhaust gas after preliminary filtration enters the purification box 100, and is evenly distributed in the purification area under the action of centrifugal force, and is fully in contact with the honeycomb activated carbon column 513 to adsorb harmful substances therein. At the same time, the gas concentration detector 514 at the end of the outlet pipe 300 monitors the concentration of harmful components in the purified gas in real time, and feeds back the data to the control panel 400 to determine whether the honeycomb activated carbon column 513 has reached a saturated state and prompts replacement;

[0048] Step 3. During operation, the reciprocating screw 607 rotates under the transmission action of the third bevel gear 610, the fourth bevel gear 612, the fifth bevel gear 617 and the sixth bevel gear 619, and cooperates with the ball nut 606 to drive the inner plate 604 and the cleaning brush 605 to move up and down to automatically clean the attachments on the surface of the filter 603. The cleaned particles fall into the recovery frame 700. If the filter 603 needs to be maintained, the cone sleeve tightening bearing 614 can be loosened to disengage the key shaft 615 from the key slot 616, so as to facilitate the removal of the inner frame 602 to replace or deeply clean the filter 603.

[0049] Working principle: Please refer to Figures 1-7As shown, when in use, the drive motor 509 can be started to drive the second bevel gear 510 to rotate, which is then transmitted through the double-headed bevel gear 508 and the first bevel gear 505 in turn to drive the centrifugal impeller 504 to rotate, generating negative pressure suction to actively suck the exhaust gas into the intake pipe 200. The exhaust gas is first preliminarily filtered through the filter 603 to remove large particles of impurities to prevent them from entering the purification area and clogging the honeycomb activated carbon column 513 to affect the purification efficiency. The exhaust gas after the preliminary filtration enters the purification box 100 and is evenly distributed in the purification area under the action of centrifugal force. It is fully in contact with the honeycomb activated carbon column 513 to absorb harmful substances therein. At the same time, the gas concentration detector 514 at the end of the outlet pipe 300 monitors the concentration of harmful components in the purified gas in real time, and feeds back the data to the control panel 400 to determine whether the honeycomb activated carbon column 513 has reached a saturated state and prompts replacement.

[0050] During operation, the reciprocating screw 607 rotates under the transmission action of the third bevel gear 610, the fourth bevel gear 612, the fifth bevel gear 617 and the sixth bevel gear 619, and cooperates with the ball nut 606 to drive the inner plate 604 and the cleaning brush 605 to move up and down to automatically clean the attachments on the surface of the filter 603. The cleaned particles fall into the recovery frame 700. If it is necessary to maintain the filter 603 or clean the recovery frame 700, the tapered sleeve tightening bearing 614 can be loosened to disengage the key shaft 615 from the key slot 616, so as to facilitate the removal of the inner frame 602 to replace or deeply clean the filter 603.

[0051] Although the embodiments of the present invention have been shown and described, it is understandable to those skilled in the art that, unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "including" or "comprising" and the like used in the present invention mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0052] 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 exhaust gas purification and treatment device for PVC color film production, characterized in that, Including: A purification box (100), an air inlet pipe (200) is fixedly installed at the air inlet of the purification box (100), an air outlet pipe (300) is fixedly installed at the air outlet of the purification box (100), and a control panel (400) is embedded on one side of the purification box (100); A purification component (500), the purification component (500) is arranged inside the air inlet pipe (200) for purifying waste gas; A cleaning component (600), the cleaning component (600) is arranged on the top surface of the purification box (100) for cleaning attachments.

2. The waste gas purification and treatment equipment for PVC color film production according to claim 1, characterized in that, The purification component (500) includes: An inner ring (501), the inner ring (501) is fixedly installed inside the air inlet pipe (200), a connecting rod (502) is fixedly installed inside the inner ring (501), one end of the connecting rod (502) is fixedly installed with a first bearing (503), a centrifugal impeller (504) is fixedly installed inside the first bearing (503), and a first helical gear (505) is fixedly installed at one end of the centrifugal impeller (504).

3. An exhaust gas purification and treatment device for PVC color film production according to claim 2, characterized in that, The purification component (500) further includes: An installation hole (506), the installation hole (506) is opened on the top surface of the air inlet pipe (200), a second bearing (507) is fixedly installed inside the installation hole (506), a double-headed helical gear (508) is fixedly installed inside the second bearing (507), one end of the double-headed helical gear (508) is engaged with the first helical gear (505), a driving motor (509) is fixedly installed on the top surface of the air inlet pipe (200), the driving motor (509) is electrically connected to the control panel (400), a second helical gear (510) is fixedly installed at one end of the output shaft of the driving motor (509), and the second helical gear (510) is engaged with the other end of the double-headed helical gear (508).

4. An exhaust gas purification and treatment device for PVC color film production according to claim 1, characterized in that, The purification component (500) further includes: A plurality of threaded grooves (511), a plurality of the threaded grooves (511) are all opened on the top surface of the purification box (100), a threaded column (512) is threadedly connected inside the threaded groove (511), a honeycomb activated carbon column (513) is fixedly installed on the inner bottom surface of the threaded column (512), a gas concentration detector (514) is fixedly installed at one end of the air outlet pipe (300), and the gas concentration detector (514) is electrically connected to the control panel (400).

5. An exhaust gas purification and treatment device for PVC color film production according to claim 3, characterized in that, The cleaning component (600) includes: A top hole (601), the top hole (601) is opened on the top surface of the purification box (100), an inner frame (602) is sleeved inside the top hole (601), a filter screen (603) is fixedly installed on one side of the inner frame (602), an inner plate (604) is arranged inside the inner frame (602), a cleaning brush (605) is fixedly installed on one side of the inner plate (604), a ball nut (606) is fixedly installed inside the inner plate (604), and a reciprocating lead screw (607) is connected inside the ball nut (606).

6. The waste gas purification and treatment equipment for PVC color film production according to claim 5, characterized in that, The cleaning component (600) further includes: An inner hole (608) is opened on the top surface of the inner frame (602). A third bearing (609) is fixedly installed inside the inner hole (608). A third helical gear (610) is fixedly installed inside the third bearing (609). The third helical gear (610) is fixedly connected to the reciprocating lead screw (607). A bearing plate (611) is fixedly installed inside the inner frame (602). A fourth helical gear (612) is fixedly installed inside the bearing plate (611). The fourth helical gear (612) meshes with the third helical gear (610). An outer hole (613) is opened on one side of the purification box (100). A tapered sleeve tightening bearing (614) is fixedly installed inside the outer hole (613). A key shaft (615) is sleeved inside the tapered sleeve tightening bearing (614). A keyway (616) is opened on one side of the fourth helical gear (612). A fifth helical gear (617) is fixedly installed at one end of the key shaft (615). A bearing seat (618) is fixedly installed on one side of the purification box (100). A sixth helical gear (619) is fixedly installed inside the bearing seat (618). The sixth helical gear (619) meshes with the fifth helical gear (617). One end of the sixth helical gear (619) is fixedly connected to the double-headed helical gear (508).

7. An exhaust gas purification and treatment device for PVC color film production according to claim 6, characterized in that, A recovery frame (700) is arranged inside the inner frame (602). A side hole (701) is opened on one side of the inner frame (602). A chute (702) is opened on the inner bottom surface of the inner frame (602). A slider (703) is fixedly installed on the bottom surface of the recovery frame (700).

8. An exhaust gas purification and treatment device for PVC color film production according to claim 7, characterized in that, Limit slots (800) are respectively opened on the left and right sides inside the inner frame (602). Limit blocks (801) are respectively fixedly installed on the left and right sides of the inner plate (604). The limit blocks (801) are sleeved with the adjacent limit slots (800).

9. A method for using an exhaust gas purification and treatment device for PVC color film production, based on the exhaust gas purification and treatment device for PVC color film production according to any one of the above claims 1-8, characterized in that, Including the following steps: Step 1: Start the drive motor (509) to drive the second helical gear (510) to rotate. Through transmission by the double-headed helical gear (508) and the first helical gear (505) in sequence, drive the centrifugal impeller (504) to rotate, generating negative pressure suction to actively suck the waste gas into the intake pipe (200). The waste gas first passes through the filter screen (603) for preliminary filtration to remove large particle impurities, preventing them from entering the purification area and blocking the honeycomb activated carbon column (513) and affecting the purification efficiency; Step 2: The preliminarily filtered waste gas enters the interior of the purification box (100), and under the action of centrifugal force, it is evenly distributed in the purification area and comes into full contact with the honeycomb activated carbon column (513) to adsorb harmful substances therein. Meanwhile, the gas concentration detector (514) at the end of the air outlet pipe (300) monitors the concentration of harmful components in the purified gas in real time and feeds the data back to the control panel (400) to determine whether the honeycomb activated carbon column (513) has reached the saturation state and prompts for replacement; Step 3: During operation, the reciprocating lead screw (607) rotates under the driving action of the third helical gear (610), the fourth helical gear (612), the fifth helical gear (617) and the sixth helical gear (619), and cooperates with the ball nut (606) to drive the inner plate (604) and the cleaning brush (605) to move up and down reciprocally to automatically clean the attachments on the surface of the filter screen (603). The cleaned particulate matter falls into the recovery box (700). If it is necessary to maintain the filter screen (603) or clean the recovery box (700), the taper sleeve tightening bearing (614) can be loosened to disengage the key shaft (615) from the key groove (616), which is convenient for taking out the inner frame (602) to replace or deeply clean the filter screen (603).

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