A waste gas treatment device and method based on chemical industry

Abstract

The invention discloses a waste gas treatment device and method based on the chemical industry, which relates to the technical field of waste gas treatment, including a treatment pipe, wherein both ends of the treatment pipe are respectively provided with an air inlet and an exhaust port, a replacement platform is provided directly above the treatment pipe, a filter membrane is installed in the middle of the treatment pipe, a filter membrane clamping mechanism is provided in the treatment pipe, a filter membrane conveying mechanism is provided on the replacement platform, a groove which penetrates the inside of the treatment pipe is provided on the replacement platform, the filter membrane clamping mechanism is connected with a transmission mechanism, and the filter membrane clamping mechanism controls a clamping ring to approach or move away from a fitting ring through the transmission mechanism to achieve clamping or loosening of the filter membrane, and at the same time, combined with the setting of a switching disk and a fixed disk, a first vent hole and a second vent hole, the waste gas in the treatment pipe is sealed and isolated when the filter membrane is replaced, eliminating the step of sealing the conveying pipeline in advance and minimizing the leakage of waste gas from the treatment pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device and method based on the chemical industry. Background Art

[0002] Chemical waste gas refers to toxic and harmful gases discharged by chemical plants during chemical production. Chemical waste gas often contains many types of pollutants, including a large amount of suspended solid particles, corrosive gases, organic matter, etc., which seriously pollute the environment and affect human health.

[0003] Chemical waste gas treatment often includes multiple steps, mainly including particle separation and toxic component absorption. The treatment steps and order are different for waste gas with different components. The existing waste gas treatment device will reduce the treatment efficiency over time during the continuous treatment process, and the treatment effect will also decrease. It is necessary to manually replace the absorption and filtration components in the treatment device at regular intervals. However, this replacement is time-consuming and labor-intensive, and requires interruption of equipment operation. It is also easy to cause waste gas leakage, which can easily threaten the health of operators. Summary of the invention

[0004] The purpose of the present invention is to provide a waste gas treatment device and method based on the chemical industry to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A waste gas treatment device based on the chemical industry includes a treatment pipe, wherein both ends of the treatment pipe are respectively provided with an air inlet and an exhaust port, a replacement table is provided directly above the treatment pipe, a filter membrane is installed in the middle of the treatment pipe, a filter membrane clamping mechanism is provided in the treatment pipe, a filter membrane conveying mechanism is provided on the replacement table, a groove that penetrates the interior of the treatment pipe is provided on the replacement table, and the filter membrane clamping mechanism is connected to a transmission mechanism.

[0007] The filter membrane clamping mechanism comprises an installation ring 1 arranged in the processing tube, the installation ring 1 is provided with a fitting ring, the installation ring 1 and the fitting ring are arranged on one side of the groove, a fixing plate is fixedly arranged in the processing tube on the other side of the groove, and vent holes 2 are evenly distributed on the fixing plate, the center of the fixing plate is rotatably connected with a screw, the screw thread is matched with a switching plate, the switching plate is axially slidably installed in the processing tube, the switching plate is evenly provided with matching rods, the matching rods are arranged corresponding to the vent holes 2, the switching plate is evenly provided with vent holes 1, a moving ring is connected to the side of the switching plate away from the matching rod, a floating spring is annularly arranged on the side of the moving ring facing the fitting ring, a clamping ring is connected to the end of the floating spring, the clamping ring and the fitting ring are fitted and installed, the filter membrane is fixedly installed between the clamping ring and the fitting ring, a bevel gear 1 is arranged at the end of the screw, and the bevel gear 1 is connected to the transmission mechanism.

[0008] As a further solution of the present invention: the fitting ring is arranged on the side close to the exhaust port, the clamping ring is arranged on the side close to the air inlet, a matching groove is arranged on the inner side of the processing tube, a matching slider is arranged on the edge of the switching disk, the matching slider and the matching groove cooperate with each other, a chamfer is arranged on the end of the matching rod, and the outer side of the matching rod is sealed and matched with the second vent hole.

[0009] As a further solution of the present invention: the transmission mechanism includes a motor 1 arranged on the outside of the processing tube, the motor 1 is connected to an output shaft 1, the output shaft 1 is rotatably installed between the processing tube, a sealing ring 1 is sleeved between the inner side of the processing tube and the output shaft 1, the sealing ring 1 is fixedly connected to the inner side of the processing tube, a transmission shaft is inserted at the end of the output shaft 1, the transmission shaft and the output shaft 1 are non-circularly matched, a sealing ring 2 is arranged on the transmission shaft, a U-shaped frame is arranged on the inner side of the processing tube, a bevel gear 2 is arranged on the transmission shaft passing through the U-shaped frame, the bevel gear 2 and the bevel gear 1 are meshed with each other, a sleeve is sleeved between the output shaft 1 and the transmission shaft, the top of the sleeve is arranged on the lower side of the sealing ring 1, the bottom of the sleeve is arranged on the lower side of the sealing ring 2, a side rack is arranged on the outer wall of the sleeve, a matching gear 1 is rotatably installed on the U-shaped frame, the matching gear 1 is meshed with the side rack, and the matching gear 1 is connected to the motor 2.

[0010] As a further solution of the present invention: a support spring is arranged between the transmission shaft and the output shaft 1, the distance between the sealing ring 2 and the bottom of the sleeve is smaller than the distance between the sealing ring 1 and the top of the sleeve, and a sealing rubber ring is arranged on the lower side of the sealing ring 1 and the sealing ring 2.

[0011] As a further solution of the present invention: the filter membrane conveying mechanism includes a release roller arranged on the replacement table, the filter membrane is wound on the release roller, a horizontal frame is fixedly installed on the upper side of one end of the groove, an inclined frame is connected to the end of the horizontal frame facing the release roller, a guide frame is arranged at the other end of the groove, a filter membrane guide groove is formed between the guide frame and the inclined frame, a conveying assembly is arranged on the inclined frame, and a slitting assembly is also arranged on the inclined frame.

[0012] As a further solution of the present invention: the conveying assembly includes a mounting groove arranged on the inclined frame, a side plate is arranged at the end of the mounting groove, the side plate is connected to a spring column, the side plate is movably installed between the spring column and the inclined frame, a mounting shaft is rotatably installed on the side plate, a conveying pressure roller is arranged at the position of the mounting shaft located in the mounting groove, the mounting shaft is connected to a rotating motor, a push-pull frame is rotatably installed on the mounting shaft, and a telescopic cylinder is arranged between the push-pull frame and the horizontal frame.

[0013] As a further solution of the present invention: the slitting assembly includes a mounting back plate arranged on the inclined frame, a snap-in guide rail is arranged on the mounting back plate, two snap-in guide rails are arranged in parallel, a matching rack is arranged between the snap-in guide rails, a snap-in frame is slidably mounted on the snap-in guide rail, a matching gear 2 is rotatably mounted on the snap-in frame, the matching gear 2 is connected to a motor 3, a telescopic motor is fixedly mounted in the snap-in frame, the telescopic motor is connected to a cutter, and the cutter points to the filter membrane.

[0014] A treatment method for a waste gas treatment device based on the chemical industry as mentioned above, comprising the following steps: S1, filter membrane conveying, through the conveying component in the filter membrane conveying mechanism, the conveying roller is pressed on the guide frame, and the filter membrane is conveyed to between the fitting ring and the clamping ring in the treatment tube until the bottom of the filter membrane passes through the lower end of the treatment tube; S2, filter membrane clamping; the screw is driven to rotate by the transmission mechanism, so that the switching disk moves, driving the matching rod to disengage from the second vent hole, and at the same time driving the moving ring to move, so that the clamping ring presses the filter membrane between the fitting rings driven by the floating spring; S3, cutting the filter membrane, the cutting component drives the cutter to move longitudinally, and the telescopic motor is combined to control the cutter to insert the filter membrane to complete the cutting of the filter membrane.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) By providing a replacement table and a groove that runs through the inside of the treatment tube at the upper end of the treatment tube, it is convenient to replace the filter membrane. After the filter membrane is placed in the treatment tube, the transmission mechanism drives the screw to rotate, so that the switching disk moves to the right, and the matching rod on the switching disk disengages from the second vent on the fixed disk. At the same time, the switching disk drives the moving ring to move to the right, so that the clamping ring approaches the filter membrane and presses the filter membrane on the fitting ring, thereby clamping and fixing the filter membrane. When the filter membrane needs to be replaced, the transmission mechanism drives the screw to rotate in the opposite direction, so that the switching disk moves in the opposite direction, and the moving ring is driven synchronously at this time. Since the floating spring is compressed, the floating spring of the moving ring is in the extension stage in the initial stage of movement. At this time, the clamping ring still presses the filter membrane on the fitting ring, and the matching rod cooperates with the second vent before the clamping ring moves to close the area on the left side of the fixed disk, avoiding premature contact with the exhaust gas delivery pipe when loosening the filter membrane and replacing the filter membrane, thereby simplifying the filter membrane replacement steps.

[0017] (2) After the filter membrane is replaced or clamped, the clearance between the output shaft 1 and the treatment tube will cause exhaust gas leakage. When the exhaust gas delivery pressure in the treatment tube is high, the leakage will be very obvious. By sleeve-fitting the sleeve on the output shaft 1 and the transmission shaft, combining the side rack and the matching gear 1, the sleeve is controlled to rise, so that the bottom and top of the sleeve are respectively pressed and matched with the bottom of the sealing ring 2 and the sealing ring 1, thereby sealing the clearance between the output shaft 1 and the treatment tube, and effectively avoiding the problem of leakage during the exhaust gas delivery process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a waste gas treatment device based on the chemical industry.

[0019] Figure 2 This is a schematic diagram of the internal structure of a treatment pipe in a waste gas treatment device based on the chemical industry.

[0020] Figure 3 It is a structural schematic diagram of a filter membrane clamping mechanism in a waste gas treatment device based on the chemical industry.

[0021] Figure 4 This is a structural schematic diagram of a transmission mechanism in a waste gas treatment device based on the chemical industry.

[0022] Figure 5 This is a schematic diagram of the installation of a filter membrane conveying mechanism in a waste gas treatment device based on the chemical industry.

[0023] Figure 6 This is a schematic diagram of the installation of a conveying roller in a waste gas treatment device based on the chemical industry.

[0024] Figure 7 for Figure 6 Enlarged structural diagram at A in the middle.

[0025] Figure 8 It is a structural schematic diagram of a cutting component in a waste gas treatment device based on the chemical industry.

[0026] In the figure: 1, treatment tube; 10, air inlet; 11, exhaust port; 12, replacement table; 2, filter membrane clamping mechanism; 20, installation ring 1; 21, fitting ring; 22, clamping ring; 23, floating spring; 24, moving ring; 25, switching disk; 250, vent 1; 251, matching slider; 252, matching groove; 26, matching rod; 27, fixing disk; 270, vent 2; 28, screw; 29, bevel gear 1; 4, transmission mechanism; 40, motor 1; 41, output shaft 1; 42, sealing ring 1; 43, transmission shaft; 44, bevel gear 2; 45, sealing ring 2; 46. Sleeve; 47. Side rack; 48. U-shaped frame; 49. Matching gear one; 410. Motor two; 5. Filter membrane conveying mechanism; 50. Horizontal frame; 51. Guide frame; 52. Tilting frame; 53. Release roller; 54. Telescopic cylinder; 55. Push-pull frame; 56. Installation shaft; 57. Conveying roller; 571. Side plate; 572. Spring column; 58. Installation groove; 6. Slitting assembly; 60. Installing back plate; 61. Snap-on guide rail; 62. Matching rack; 63. Snap-on frame; 64. Matching gear two; 65. Motor three; 66. Telescopic motor; 67. Cutter. DETAILED DESCRIPTION

[0027] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by terms such as “longitudinal”, “lateral”, “upper”, “lower”, “top”, “bottom”, “inside” and “outside” are 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. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "one", "two", etc. 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, a feature defined as "one" or "two" may explicitly or implicitly include one or more of the feature. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0031] Embodiment 1:

[0032] like Figure 1 , Figure 2 As shown, a waste gas treatment device based on the chemical industry includes a treatment pipe 1, wherein both ends of the treatment pipe 1 are respectively provided with an air inlet 10 and an exhaust port 11, a replacement table 12 is provided directly above the treatment pipe 1, a filter membrane is installed in the middle of the treatment pipe 1, a filter membrane clamping mechanism 2 is provided in the treatment pipe 1, a filter membrane conveying mechanism 5 is provided on the replacement table 12, a groove which passes through the inside of the treatment pipe 1 is provided on the replacement table 12, and the filter membrane clamping mechanism 2 is connected with a transmission mechanism 4.

[0033] like Figure 3 As shown, the filter membrane clamping mechanism 2 includes a mounting ring 20 arranged in the processing tube 1, and a fitting ring 21 is arranged on the mounting ring 20. The mounting ring 20 and the fitting ring 21 are arranged on one side of the groove. A fixing plate 27 is fixedly arranged in the processing tube 1 on the other side of the groove. The fixing plate 27 is evenly distributed with vent holes 270. The center of the fixing plate 27 is rotatably connected with a screw rod 28. The screw 28 is threadedly mounted with a switching plate 25. The switching plate 25 is axially slidably installed in the processing tube 1. The switching plate 25 is evenly provided with matching rods 26. The matching rod 26 is arranged corresponding to the vent hole 270, and the switching disk 25 is evenly provided with vent holes 250. The switching disk 25 is connected with a moving ring 24 on the side away from the matching rod 26. The moving ring 24 is provided with a floating spring 23 in a ring-shaped distribution on the side facing the fitting ring 21. The end of the floating spring 23 is connected with a clamping ring 22. The clamping ring 22 is fitted with the fitting ring 21. The filter membrane is fixedly installed between the clamping ring 22 and the fitting ring 21. The end of the screw rod 28 is provided with a bevel gear 29, and the bevel gear 29 is connected to the transmission mechanism 4.

[0034] Specifically, by arranging a replacement table 12 at the upper end of the processing tube 1 and a groove penetrating the interior of the processing tube 1, it is convenient to replace the filter membrane. After the filter membrane is placed in the processing tube 1, the screw 28 is driven to rotate in conjunction with the transmission mechanism 4, so that the switching disk 25 moves to the right, and the matching rod 26 on the switching disk 25 is separated from the vent hole 270 on the fixed disk 27. At the same time, the switching disk 25 drives the moving ring 24 to move to the right, so that the clamping ring 22 approaches the filter membrane and presses the filter membrane on the fitting ring 21, so as to clamp and fix the filter membrane.

[0035] More specifically, when the filter membrane needs to be replaced, the transmission mechanism 4 drives the screw 28 to rotate in the opposite direction, causing the switching disk 25 to move in the opposite direction, and at this time, the moving ring 24 is driven synchronously. Since the floating spring 23 is compressed, the floating spring 23 is in the extension stage in the initial stage of movement of the moving ring 24. At this time, the clamping ring 22 still presses the filter membrane onto the fitting ring 21, and the matching rod 26 cooperates with the vent hole 270 before the clamping ring 22 moves, so as to close the area on the left side of the fixed disk 27, avoid contact with the exhaust gas delivery pipe in advance when loosening the filter membrane and replacing the filter membrane, and simplify the filter membrane replacement steps.

[0036] Further, such as Figure 3 As shown, the fitting ring 21 is arranged on the side close to the exhaust port 11, the clamping ring 22 is arranged on the side close to the air inlet 10, a matching groove 252 is arranged on the inner side of the processing tube 1, a matching slider 251 is arranged on the edge of the switching disk 25, the matching slider 251 and the matching groove 252 cooperate with each other, a chamfer is arranged on the end of the matching rod 26, and the outer side of the matching rod 26 is sealed and matched with the second vent hole 270.

[0037] Specifically, a chamfer is provided at the end of the matching rod 26 to facilitate the matching of the matching rod 26 and the second vent hole 270 , ensuring that the matching rod 26 can be accurately inserted into the second vent hole 270 when the switching disk 25 moves, thereby closing the fixed disk 27 .

[0038] Further, such as Figure 4As shown, the transmission mechanism 4 includes a motor 40 arranged on the outside of the processing tube 1, the motor 40 is connected to an output shaft 41, the output shaft 41 is rotatably installed with the processing tube 1, a sealing ring 42 is sleeved between the inner side of the processing tube 1 and the output shaft 41, the sealing ring 42 is fixedly connected to the inner side of the processing tube 1, a transmission shaft 43 is inserted at the end of the output shaft 41, the transmission shaft 43 and the output shaft 41 are non-circularly matched, a sealing ring 45 is arranged on the transmission shaft 43, and a U-shaped frame 48 is arranged on the inner side of the processing tube 1. The transmission shaft 43 passes through the U-shaped frame 48 and is provided with a bevel gear 24, and the bevel gear 24 is meshed with the bevel gear 1 29. A sleeve 46 is sleeved between the output shaft 1 41 and the transmission shaft 43, and the top of the sleeve 46 is arranged on the lower side of the sealing ring 1 42, and the bottom of the sleeve 46 is arranged on the lower side of the sealing ring 2 45. A side rack 47 is arranged on the outer wall of the sleeve 46, and a matching gear 49 is rotatably installed on the U-shaped frame 48, and the matching gear 1 49 is meshed with the side rack 47, and the matching gear 1 49 is connected to the motor 2 410.

[0039] Specifically, the transmission shaft 43 and the output shaft are non-circularly matched, that is, the output shaft 1 41 and the transmission shaft 43 can only slide axially, but cannot rotate relative to each other, similar to the telescopic rod structure of a folding umbrella. The output shaft 1 41 and the transmission shaft 43 are controlled by the motor 1 40 to drive the bevel gear 2 44 to mesh with the bevel gear 1 29, thereby driving the screw 28 to rotate, thereby achieving the clamping or loosening of the filter membrane for replacement.

[0040] More specifically, after the filter membrane is replaced or clamped, the clearance between the output shaft 1 41 and the processing tube 1 will cause the exhaust gas to leak, and when the exhaust gas delivery pressure in the processing tube 1 is high, the leakage will be very obvious. By sleeve-fitting the sleeve 46 on the output shaft 1 41 and the transmission shaft 43, in combination with the side rack 47 and the matching gear 1 49, when the sleeve 46 is controlled to rise, the bottom and top of the sleeve 46 are respectively pressed and matched with the bottom of the sealing ring 2 45 and the sealing ring 1 42, thereby sealing the clearance between the output shaft 1 41 and the processing tube 1, and effectively avoiding the problem of leakage during the exhaust gas delivery process.

[0041] Further, such as Figure 4 As shown, a support spring is arranged between the transmission shaft 43 and the output shaft 1 41 , the distance between the sealing ring 2 45 and the bottom of the sleeve 46 is smaller than the distance between the sealing ring 1 42 and the top of the sleeve 46 , and a sealing rubber ring is arranged on the lower side of the sealing ring 1 42 and the sealing ring 2 45 .

[0042] Specifically, the distance between the second sealing ring 45 and the bottom of the sleeve 46 is smaller than the distance between the first sealing ring 42 and the top of the sleeve 46, so that after the bottom of the sleeve 46 contacts the bottom of the second sealing ring 45, it drives the transmission shaft 43 to move upward as a whole, and then contacts and presses with the bottom of the first sealing ring 42, thereby ensuring reliable sealing between the two ends of the sleeve 46 and the first sealing ring 42 and the second sealing ring 45.

[0043] Embodiment 2:

[0044] This embodiment is a further improvement and limitation made on the basis of Embodiment 1.

[0045] A method comprising all the components of embodiment 1, further comprising:

[0046] Further, such as Figure 5 , Figure 6 As shown, the filter membrane conveying mechanism 5 includes a release roller 53 arranged on the replacement table 12, and a filter membrane is wound on the release roller 53. A horizontal frame 50 is fixedly installed on the upper side of one end of the groove, and an inclined frame 52 is connected to the end of the horizontal frame 50 facing the release roller 53. A guide frame 51 is arranged at the other end of the groove, and a filter membrane guide groove is formed between the guide frame 51 and the inclined frame 52. A conveying component is arranged on the inclined frame 52, and a slitting component 6 is also arranged on the inclined frame 52.

[0047] Further, such as Figure 6 , Figure 7 As shown, the conveying assembly includes a mounting groove 58 arranged on the inclined frame 52, a side plate 571 is arranged at the end of the mounting groove 58, the side plate 571 is connected to a spring column 572, the side plate 571 is movably installed between the inclined frame 52 through the spring column 572, a mounting shaft 56 is rotatably installed on the side plate 571, a conveying roller 57 is arranged at the position of the mounting shaft 56 located in the mounting groove 58, the mounting shaft 56 is connected to a rotating motor, a push-pull frame 55 is rotatably installed on the mounting shaft 56, and a telescopic cylinder 54 is arranged between the push-pull frame 55 and the horizontal frame 50.

[0048] Specifically, after the conveying roller delivers the filter membrane into the groove, the telescopic cylinder 54 is used to control the conveying pressure roller 57 on the mounting shaft 56 to approach the guide frame 51, thereby pressing the filter membrane against the guide frame 51. At this time, the mounting shaft 56 is controlled to rotate, which will drive the filter membrane to move along the guide frame 51 toward the inside of the processing tube 1, thereby realizing the controllable delivery of the filter membrane.

[0049] Further, such as Figure 8As shown, the slitting assembly 6 includes a mounting back plate 60 arranged on the tilting frame 52, and a snap-in guide rail 61 is arranged on the mounting back plate 60. Two snap-in guide rails 61 are arranged in parallel, and a matching rack 62 is arranged between the snap-in guide rails 61. A snap-in frame 63 is slidably installed on the snap-in guide rail 61, and a matching gear 2 64 is rotatably installed on the snap-in frame 63. The matching gear 2 64 is connected to a motor 3 65, and a telescopic motor 66 is fixedly installed in the snap-in frame 63. The telescopic motor 66 is connected to a cutter 67, and the cutter 67 points to the filter membrane.

[0050] Specifically, after the filter membrane is transported, the clamping guide rail 61 and motor three 65 are combined with gear two 64 to drive the clamping frame 63 to move to the edge of the mounting back plate 60, and the telescopic motor 66 controls the extension of the cutter 67 to move the clamping frame 63 along the clamping guide rail 61 so that the cutter 67 contacts the filter membrane to achieve cutting of the filter membrane.

[0051] The present invention also provides a treatment method for a waste gas treatment device based on the chemical industry as mentioned above, comprising the following steps: S1, filter membrane transportation, through the conveying component in the filter membrane conveying mechanism 5, the conveying pressure roller 57 is pressed on the guide frame 51, and the filter membrane is delivered to between the fitting ring 21 and the clamping ring 22 in the treatment tube 1, until the bottom of the filter membrane passes through the lower end of the treatment tube 1; S2, filter membrane clamping; the screw 28 is driven to rotate by the transmission mechanism 4, so that the switching disk 25 moves, driving the matching rod 26 to disengage from the second vent hole 270, and at the same time driving the moving ring 24 to move, so that the clamping ring 22 presses the filter membrane between the fitting rings 21 driven by the floating spring 23; S3, cutting the filter membrane, the cutting knife 67 is driven to move longitudinally by the cutting component 6, and the cutter 67 is controlled to insert the filter membrane in combination with the telescopic motor 66 to complete the cutting of the filter membrane.

[0052] The working principle of the embodiment of the present invention is:

[0053] like Figure 1-Figure 8As shown, by providing a replacement table 12 at the upper end of the processing tube 1 and a groove penetrating the inside of the processing tube 1, it is convenient to replace the filter membrane. After the filter membrane is placed in the processing tube 1, the screw 28 is driven to rotate in conjunction with the transmission mechanism 4, so that the switching disk 25 moves to the right, and the matching rod 26 on the switching disk 25 is separated from the vent hole 270 on the fixed disk 27. At the same time, the switching disk 25 drives the moving ring 24 to move to the right, so that the clamping ring 22 approaches the filter membrane and presses the filter membrane on the fitting ring 21, so as to clamp and fix the filter membrane. When the filter membrane needs to be replaced, the transmission mechanism 4 drives the screw rod 28 to rotate in the opposite direction, so that the switching disk 25 moves in the opposite direction, and at this time, the moving ring 24 is synchronously driven. Since the floating spring 23 is compressed, the floating spring 23 of the moving ring 24 is in the extension stage in the initial stage of movement. At this time, the clamping ring 22 still presses the filter membrane on the fitting ring 21, and the matching rod 26 cooperates with the vent hole 270 before the clamping ring 22 moves, so as to close the area on the left side of the fixed disk 27, avoid the waste gas delivery pipe in advance when loosening the filter membrane and replacing the filter membrane, and simplify the filter membrane replacement steps. The end of the matching rod 26 is chamfered to facilitate the matching rod 26 and the vent hole 270 to cooperate with each other, so as to ensure that the matching rod 26 can be accurately inserted into the vent hole 270 when the switching disk 25 moves, so as to close the fixed disk 27. The transmission shaft 43 and the output shaft are non-circularly matched, that is, the output shaft 1 41 and the transmission shaft 43 can only slide axially, but cannot rotate with each other, which is similar to the telescopic rod structure of a folding umbrella. The output shaft 1 41 and the transmission shaft 43 are controlled by the motor 1 40 to drive the bevel gear 2 44 to mesh with the bevel gear 1 29, thereby driving the screw 28 to rotate, and then the filter membrane is clamped or loosened for replacement. After the filter membrane is replaced or clamped, the matching gap between the output shaft 1 41 and the processing tube 1 will cause the exhaust gas to leak. When the exhaust gas delivery pressure in the processing tube 1 is high, the leakage phenomenon will be very obvious. By sleeve-fitting the sleeve 46 on the output shaft 1 41 and the transmission shaft 43, combining the side rack 47 and the matching gear 1 49, when the sleeve 46 is controlled to rise, the bottom and top of the sleeve 46 are respectively pressed and matched with the bottom of the sealing ring 2 45 and the sealing ring 1 42, thereby achieving the sealing of the matching gap between the output shaft 1 41 and the processing tube 1, and effectively avoiding the problem of leakage during the exhaust gas delivery process. The distance between the second sealing ring 45 and the bottom of the sleeve 46 is smaller than the distance between the first sealing ring 42 and the top of the sleeve 46, so that after the bottom of the sleeve 46 contacts the bottom of the second sealing ring 45, the transmission shaft 43 is driven to move upward as a whole, and then contacts and presses the bottom of the first sealing ring 42, thereby ensuring reliable sealing between the two ends of the sleeve 46 and the first sealing ring 42 and the second sealing ring 45. After the conveying roller conveys the filter membrane into the groove, the conveying roller 57 on the installation shaft 56 is controlled by the telescopic cylinder 54 to approach the guide frame 51, thereby pressing the filter membrane against the guide frame 51. At this time, the installation shaft 56 is controlled to rotate, which will drive the filter membrane to move along the guide frame 51 to the inside of the processing tube 1, thereby realizing controllable conveying of the filter membrane.After the filter membrane is transported, the clamping guide rail 61 and motor three 65 cooperate with gear two 64 to drive the clamping frame 63 to move to the edge of the mounting back plate 60, and the telescopic motor 66 controls the extension of the cutter 67 to move the clamping frame 63 along the clamping guide rail 61 so that the cutter 67 contacts the filter membrane to achieve the cutting of the filter membrane.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. Any reference numeral in a claim shall not be regarded as limiting the claim involved.

[0055] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A waste gas treatment device based on the chemical industry, comprising a treatment pipe (1), wherein both ends of the treatment pipe (1) are respectively provided with an air inlet (10) and an air outlet (11), a replacement table (12) is provided directly above the treatment pipe (1), and a filter membrane is installed in the middle of the treatment pipe (1), characterized in that: The processing tube (1) is provided with a filter membrane clamping mechanism (2), the replacement platform (12) is provided with a filter membrane conveying mechanism (5), the replacement platform (12) is provided with a groove that penetrates the interior of the processing tube (1), and the filter membrane clamping mechanism (2) is connected to a transmission mechanism (4); The filter membrane clamping mechanism (2) comprises a mounting ring (20) arranged in the processing tube (1), the mounting ring (20) being provided with a fitting ring (21), the mounting ring (20) and the fitting ring (21) being arranged on one side of the groove, a fixing plate (27) being fixedly arranged in the processing tube (1) on the other side of the groove, the fixing plate (27) being provided with evenly distributed vent holes (270), the fixing plate (27) being rotatably connected to the center thereof with a screw rod (28), the screw rod (28) being threadedly fitted with a switching plate (25), the switching plate (25) being axially slidably installed in the processing tube (1), the switching plate (25) being evenly provided with matching rods (26), the The matching rod (26) is arranged corresponding to the second vent hole (270), and the switching disk (25) is evenly provided with the first vent hole (250). The switching disk (25) is connected with a moving ring (24) on the side away from the matching rod (26), and a floating spring (23) is arranged in an annular manner on the side of the moving ring (24) facing the fitting ring (21). The end of the floating spring (23) is connected with a clamping ring (22), and the clamping ring (22) and the fitting ring (21) are fitted and installed. The filter membrane is fixedly installed between the clamping ring (22) and the fitting ring (21), and a bevel gear (29) is arranged at the end of the screw rod (28), and the bevel gear (29) is connected to the transmission mechanism (4); The fitting ring (21) is arranged on a side close to the exhaust port (11), the clamping ring (22) is arranged on a side close to the air inlet (10), a matching groove (252) is arranged on the inner side of the processing tube (1), a matching slider (251) is arranged on the edge of the switching disk (25), the matching slider (251) and the matching groove (252) are matched with each other, the end of the matching rod (26) is provided with a chamfer, and the outer side of the matching rod (26) is sealed and matched with the second vent hole (270); The transmission mechanism (4) comprises a motor (40) arranged on the outside of the processing tube (1), the motor (40) is connected to an output shaft (41), the output shaft (41) is rotatably mounted on the processing tube (1), a sealing ring (42) is sleeved between the inside of the processing tube (1) and the output shaft (41), the sealing ring (42) is fixedly connected to the inside of the processing tube (1), a transmission shaft (43) is inserted at the end of the output shaft (41), the transmission shaft (43) and the output shaft (41) are non-circularly matched, a sealing ring (45) is arranged on the transmission shaft (43), a U-shaped frame (48) is arranged on the inside of the processing tube (1), and the The transmission shaft (43) passes through the U-shaped frame (48) and is provided with a bevel gear 2 (44), the bevel gear 2 (44) and the bevel gear 1 (29) are meshed with each other, a sleeve (46) is sleeved between the output shaft 1 (41) and the transmission shaft (43), the top of the sleeve (46) is arranged on the lower side of the sealing ring 1 (42), the bottom of the sleeve (46) is arranged on the lower side of the sealing ring 2 (45), a side rack (47) is arranged on the outer wall of the sleeve (46), a matching gear 1 (49) is rotatably installed on the U-shaped frame (48), the matching gear 1 (49) and the side rack (47) are meshed with each other, and the matching gear 1 (49) is connected to the motor 2 (410); A supporting spring is arranged between the transmission shaft (43) and the output shaft 1 (41); the distance between the sealing ring 2 (45) and the bottom of the sleeve (46) is smaller than the distance between the sealing ring 1 (42) and the top of the sleeve (46); and a sealing rubber ring is arranged on the lower side of the sealing ring 1 (42) and the sealing ring 2 (45).

2. The waste gas treatment device based on the chemical industry according to claim 1 is characterized in that: The filter membrane conveying mechanism (5) comprises a release roller (53) arranged on the replacement table (12), a filter membrane being wound on the release roller (53), a horizontal frame (50) being fixedly mounted on the upper side of one end of the groove, an inclined frame (52) being connected to one end of the horizontal frame (50) facing the release roller (53), a guide frame (51) being arranged at the other end of the groove, a filter membrane guide groove being formed between the guide frame (51) and the inclined frame (52), a conveying assembly being arranged on the inclined frame (52), and a slitting assembly (6) being also arranged on the inclined frame (52).

3. The waste gas treatment device based on the chemical industry according to claim 2 is characterized in that: The conveying assembly comprises a mounting groove (58) arranged on the tilting frame (52); a side plate (571) is arranged at the end of the mounting groove (58); the side plate (571) is connected to a spring column (572); the side plate (571) is movably installed between the tilting frame (52) through the spring column (572); a mounting shaft (56) is rotatably installed on the side plate (571); a conveying roller (57) is arranged at a position of the mounting shaft (56) located in the mounting groove (58); the mounting shaft (56) is connected to a rotating motor; a push-pull frame (55) is rotatably installed on the mounting shaft (56); a telescopic cylinder (54) is arranged between the push-pull frame (55) and the horizontal frame (50).

4. The waste gas treatment device based on the chemical industry according to claim 3 is characterized in that: The slitting assembly (6) comprises a mounting back plate (60) arranged on the tilting frame (52), the mounting back plate (60) being provided with a clamping guide rail (61), two clamping guide rails (61) being provided in parallel, a matching rack (62) being provided between the clamping guide rails (61), a clamping frame (63) being slidably mounted on the clamping guide rail (61), a matching gear 2 (64) being rotatably mounted on the clamping frame (63), the matching gear 2 (64) being connected to a motor 3 (65), a telescopic motor (66) being fixedly mounted inside the clamping frame (63), the telescopic motor (66) being connected to a cutter (67), the cutter (67) being directed towards the filter membrane.

5. A treatment method based on a waste gas treatment device in the chemical industry as claimed in claim 4, characterized in that: The following steps are involved: S1, conveying the filter membrane, through the conveying assembly in the filter membrane conveying mechanism (5), the conveying roller (57) is pressed on the guide frame (51), and the filter membrane is conveyed between the fitting ring (21) and the clamping ring (22) in the processing tube (1), until the bottom of the filter membrane passes through the lower end of the processing tube (1); S2, the filter membrane is pressed; the screw rod (28) is driven to rotate by the transmission mechanism (4), so that the switching disk (25) moves, drives the matching rod (26) to disengage from the second vent hole (270), and drives the moving ring (24) to move, so that the pressing ring (22) presses the filter membrane between the fitting rings (21) driven by the floating spring (23); S3, cutting the filter membrane, the cutting component (6) drives the cutter (67) to move longitudinally, and the cutter (67) is controlled to insert into the filter membrane in combination with the telescopic motor (66), thereby completing the cutting of the filter membrane.

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