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CN-122006365-A - Petrochemical waste gas environment-friendly purification device and method

CN122006365ACN 122006365 ACN122006365 ACN 122006365ACN-122006365-A

Abstract

The invention relates to the technical field of petrochemical waste gas environmental protection treatment, in particular to a petrochemical waste gas environmental protection purification device which comprises a filter cartridge, wherein a waste gas inlet pipeline is arranged on the side wall of the filter cartridge, and a cleaning cylinder is arranged at the bottom of the filter cartridge. In the cleaning process, the saturated filtering area of the filter screen barrel moves downwards into the cleaning barrel to clean ash, and meanwhile, the standby filtering area above the filter screen barrel is automatically switched to a filtering station, so that the whole process receives waste gas filtering work, the shutdown and the interruption of waste gas treatment flow are not needed, the core pain point of production interruption caused by shutdown cleaning of the filtering device in continuous production of petrochemical industry is thoroughly solved, and the operation continuity of the production device and the waste gas treatment device is greatly improved.

Inventors

  • GAO LIXIA

Assignees

  • 淄博德辰化工有限公司

Dates

Publication Date
20260512
Application Date
20260325

Claims (8)

  1. 1. The utility model provides a petrochemical waste gas environmental protection purifier, includes cartridge filter (1), and waste gas air inlet pipe is installed to cartridge filter (1) lateral wall, and cleaning cylinder (2) are installed to the bottom of cartridge filter (1), and pulse shower nozzle board (3) are installed to cleaning cylinder (2) inner wall bottom, and stand pipe (4), its characterized in that are installed at the top of cartridge filter (1): the filter cartridge (1) and the cleaning cylinder (2) form a double-station separation type main body shell structure together, the filter cartridge (1) forms an exhaust gas filtering station, the cleaning cylinder (2) forms a filter screen cleaning station, and the filter cartridge and the cleaning cylinder form a physically separated double-station structure; The inner wall of the guide pipe (4) is provided with a rectangular chamfer arc groove (41), the inner wall of the guide pipe (4) is connected with an inner driving pipe (42) in a sliding way, the bottom end of the inner driving pipe (42) is provided with a filter screen barrel (48), the filter screen barrel (48) is attached to the upper port and the lower port of the inner wall of the filter cartridge (1), and the air flow is ensured to flow into the guide pipe (4) after being filtered by the filter screen barrel (48); A first driving rod (43) penetrates through the inner driving pipe (42), and one end of the first driving rod (43) positioned outside the inner driving pipe (42) is arranged in the rectangular chamfer arc groove (41) in a sliding mode; a through groove (44) is formed in the side face of the inner driving pipe (42), a second driving rod (45) is rotationally connected to the guide pipe (4), one end of the second driving rod (45) penetrates through the through groove (44) and is fixedly connected with a C-shaped plate (46), and one end, far away from the C-shaped plate (46), of the second driving rod (45) extends to the outer side of the guide pipe (4); Both ends of C shaped plate (46) are all fixedly connected with extension rod (47), the one end butt that two extension rods (47) and first actuating lever (43) are located interior driving tube (42) inner wall drives C shaped plate (46), extension rod (47) rotation through second actuating lever (45) rotation, when promoting first actuating lever (43) along the interior removal of rectangle chamfer arcuation groove (41), drive filter screen bucket (48) and accomplish the compound action of circumference rotation and axial lift, realize the filtration region seamless switching between the filtration station of cartridge filter (1) and the cleaning station of cleaning cylinder (2) of filter screen bucket (48), above-mentioned structure constitutes filter screen bucket lift rotatory composite drive structure jointly.
  2. 2. The petrochemical waste gas environment-friendly purifying device according to claim 1, wherein six pulse spray head plates (3) are annularly arranged at equal intervals, the six pulse spray head plates (3) are arranged on an installation cylinder (8), the installation cylinder (8) is fixed on the bottom of the inner wall of the cleaning cylinder (2), and spray heads of the pulse spray head plates (3) are obliquely arranged.
  3. 3. The petrochemical waste gas environment-friendly purification device according to claim 1, wherein a control switch (7) is arranged on the inner wall of the cleaning cylinder (2), the pulse spray head plate (3) is driven to spray air by downwards moving the filter screen cylinder (48) to touch the control switch (7), and the filter screen cylinder (48) is reversely cleaned.
  4. 4. The petrochemical waste gas environment-friendly purification device according to claim 1, wherein the top of the guide pipe (4) is fixedly connected with an exhaust pipe (5), an opening is formed in the top of the inner wall of the exhaust pipe (5), a rectangular frame (51) is arranged in the opening, a deflection plate (52) is hinged in the rectangular frame (51), and the deflection plate (52) extends into the exhaust pipe (5); One side of the deflection plate (52) is hinged with a hinging rod (53), the bottom of the hinging rod (53) is hinged with a lower pressing rod (54), the lower end of the lower pressing rod (54) is inserted in the exhaust pipe (5), a sealing elastic rubber sleeve (6) is sleeved on the side face of the lower pressing rod (54), the upper end of the sealing elastic rubber sleeve (6) is fixed on the exhaust pipe (5), and after the lower pressing rod (54) moves downwards, the sealing elastic rubber sleeve (6) stretches and has a force for driving the lower pressing rod (54) to move upwards.
  5. 5. The petrochemical industry waste gas environmental protection purifier of claim 4, wherein sealing frame (55) is installed to the bottom of blast pipe (5), and sealing frame (55) right-hand member is fixed on guide tube (4) side, seals the rotatory district of second actuating lever (45) and guide tube (4), low-speed motor (56) are installed in the left side of sealing frame (55) inner wall, low-speed motor (56) axis of rotation and second actuating lever (45) coaxial setting, fixed cover has cup jointed driving disk (57) in the pivot of low-speed motor (56), draw-in groove (58) have been seted up to the terminal surface of driving disk (57).
  6. 6. The petrochemical waste gas environment-friendly purification device according to claim 5, wherein a fixed ring (59) is arranged on the right side of the inner wall of the sealing frame (55), the fixed ring (59) is arranged on one end of the second driving rod (45) facing the low-speed motor (56), the fixed ring (59) does not rotate along with the second driving rod (45), a connecting rod (510) is rotationally connected to the outer side of the fixed ring (59), a spring (511) is fixedly sleeved at the end part of the connecting rod (510), one end of the spring (511) far away from the connecting rod (510) is fixed on the fixed ring (59), an arc plate (512) is fixedly connected to one end of the connecting rod (510) far away from the fixed ring (59), the outer arc edge of the arc plate (512) is in butt joint with the lower end of the lower pressure rod (54), and an inclined surface (513) is formed at one end of the arc plate (512) facing the fixed ring (59).
  7. 7. The petrochemical industry waste gas environmental protection purification device of claim 1, wherein a driving disc (514) is fixedly sleeved on one end of a second driving rod (45) facing a low-speed motor (56), the driving disc (514) is located on one side of a fixed ring (59) facing the low-speed motor (56), a spline spring telescopic rod (515) is fixedly connected to the driving disc (514), one end of the spline spring telescopic rod (515) facing away from the driving disc (514) is hemispherical, a deflector rod (516) is fixedly connected to a spline spring telescopic sleeve, when the deflector rod (516) is abutted to an inclined surface (513) area of an arc plate (512), the spline spring telescopic rod (515) is in a compressed state and separated from a clamping groove (58) on the end face of the driving disc (57), and when the deflector rod (516) is not abutted to the arc plate (512), the spline spring telescopic rod (515) is in an extending state and is abutted to the clamping groove (58), and power of the low-speed motor (56) is transmitted to the second driving rod (45).
  8. 8. A method for using the petrochemical waste gas environment-friendly purifying device, which is characterized by comprising the following steps: S1, feeding dust-containing waste gas into a filter cartridge (1) through an air inlet pipeline, completing dust filtration through a filter screen barrel (48), and discharging clean waste gas outwards through a guide pipe (4) and an exhaust pipe (5) in sequence; Under the working condition, the airflow impacts the deflection plate (52) to deflect, the hinging rod (53) pushes the lower pressing rod (54) to move downwards, the arc plate (512) is extruded to drive the connecting rod (510) to deflect, so that the spring (511) stores force, meanwhile, the inclined surface (513) of the arc plate (512) extrudes the deflector rod (516) on the spline spring telescopic rod (515) to enable the spline spring telescopic rod (515) to shrink, the deflector rod is completely separated from the clamping groove (58) of the end driving disc (57) of the low-speed motor (56), the power transmission is disconnected, and the device is stably locked in a filtering state; S2, filter screen blockage induction and power automatic closing: When the filter screen barrel (48) is blocked by dust accumulation, the ventilation volume of the device is reduced, the impact force of air flow on the deflection plate (52) is synchronously weakened, the sealing elastic rubber sleeve (6) drives the lower pressure rod (54) to move upwards to reset, the extrusion on the arc plate (512) is released, the spring (511) in a force accumulation state releases the elastic force to drive the arc plate (512) to deflect reversely, the inclined plane (513) is separated from the poking rod (516), the spline spring telescopic rod (515) automatically stretches and is clamped into the clamping groove (58) to finish power switching-on, and the power of the low-speed motor (56) is transmitted to the second driving rod (45) through the spline spring telescopic rod (515) at the moment to automatically trigger the cleaning flow; S3, seamless switching of a screen lifting and rotating compound action and a station: When the second driving rod (45) rotates, the C-shaped plate (46) and the extension rod (47) are synchronously driven to rotate, the first driving rod (43) is continuously pushed to move along the closed-loop track of the rectangular chamfer arc groove (41) on the inner wall of the guide tube (4), and the inner driving tube (42) and the filter screen barrel (48) are driven to complete the preset compound action: Firstly, rotating along the circumferential direction of the upper arc section of the rectangular chamfer arc-shaped groove (41), and then moving downwards along the axial direction of the descending section to enable the saturated filtering area of the filter screen barrel (48) to completely enter the cleaning station of the cleaning barrel (2), and at the moment, the spare filtering area above the saturated filtering area is still attached and sealed to the upper port of the filter barrel (1) to continuously receive waste gas for filtering, so that seamless switching without stopping is realized; The lower arc section of the rectangular chamfer arc groove (41) rotates circumferentially in the cleaning station, the pulse spray head plate (3) is matched for cleaning ash in the whole area of the filter screen barrel (48), the filter screen barrel (48) is lifted and reset along the axial direction of the lifting section after ash cleaning is completed, and the clean filtering area returns to the filtering station of the filter cartridge (1) again to recover normal filtering.

Description

Petrochemical waste gas environment-friendly purification device and method Technical Field The invention relates to the technical field of petrochemical waste gas environment-friendly treatment, in particular to a petrochemical waste gas environment-friendly purifying device and method. Background Currently, the petrochemical industry adopts a bag type dust collector and a fixed filter cartridge type filter device for pretreatment of dust-containing waste gas. In the long-term continuous operation process of the device, dust can be continuously accumulated on the surface of the filter material to form a filter cake, so that the filter resistance continuously rises, the ventilation capacity of the device is reduced, and the problems of complete blockage of the filter material and paralysis of the waste gas treatment device can occur in severe cases. Aiming at the treatment scheme of filter material blockage, the prior art mainly has the following core defects: the shutdown cleaning mode restricts production continuity, namely the mode of manually disassembling and cleaning/replacing filter materials is necessary to interrupt the operation of the waste gas treatment device and even the production device, and the petrochemical device is continuously operated for 24 hours, so that the unplanned shutdown causes huge economic loss, and meanwhile, the problems of high labor intensity, high maintenance cost, safety and environmental protection risks caused by waste gas leakage and the like exist in manual disassembly and maintenance. The existing fixed station pulse back-blowing device has poor back-blowing cleaning effect and no seamless filtering capability, and the filter material is still in the filtering station during cleaning, and the reverse ash removal airflow and the forward filter airflow are mutually interfered, so that not only is the ash removed incompletely and the fallen dust easily adsorbed for the second time, but also the effective filtering area is suddenly reduced in the back-blowing process, the problems of dust escape and broken cliff type reduction of the filtering efficiency occur, and the seamless connection of filtering and cleaning cannot be realized. The conventional back-flushing device is mostly triggered at regular time, can not be started and stopped according to the actual blocking state of the filter material, can not only cause invalid consumption of compressed air, but also has the problems of lag response after the filter material is blocked and uncontrolled running resistance of the device, and can not ensure that the filter device stably runs in a high-efficiency low-resistance state for a long time. Based on the above, the application develops a petrochemical waste gas environment-friendly purifying device capable of self-cleaning on line without stopping machine and removing ash without dead angle aiming at the core pain point of the prior art, so as to solve a plurality of problems in the prior art. Disclosure of Invention The invention aims to provide an environment-friendly petrochemical waste gas purifying device and method for solving the problems in the background technology. The petrochemical waste gas environment-friendly purifying device comprises a filter cartridge, wherein a waste gas inlet pipeline is arranged on the side wall of the filter cartridge, a cleaning cartridge is arranged at the bottom of the filter cartridge, a pulse spray head plate is arranged at the bottom of the inner wall of the cleaning cartridge, and a guide pipe is arranged at the top of the filter cartridge; The filter cartridge and the cleaning cartridge jointly form a double-station separated main body shell structure, the filter cartridge forms an exhaust gas filtering station, the cleaning cartridge forms a filter screen cleaning station, and the filter cartridge and the cleaning cartridge form a physically separated double-station structure; the inner wall of the guide pipe is slidably connected with an inner driving pipe, the bottom end of the inner driving pipe is provided with a filter screen barrel, the filter screen barrel is attached to the upper and lower ports of the inner wall of the filter cartridge, and the air flow is ensured to flow into the guide pipe after being filtered by the filter screen barrel; The inner driving pipe is penetrated with a first driving rod, and one end of the first driving rod positioned outside the inner driving pipe is arranged in the rectangular chamfer arc groove in a sliding way; The side surface of the inner driving pipe is provided with a through groove, a second driving rod is rotationally connected to the guide pipe, one end of the second driving rod penetrates through the through groove and is fixedly connected with a C-shaped plate, and one end of the second driving rod, which is far away from the C-shaped plate, extends to the outer side of the guide pipe; The two ends of the C-shaped plate are fixedly connected with extension rods, the