Flue gas particulate matter purification equipment for atmospheric pollution

Abstract

The present application belongs to the technical field of flue gas purification, and specifically discloses a flue gas particulate matter purification device for air pollution, which comprises a purification box, a filtering space is arranged in the purification box, a through groove is formed in the surface of the purification box, a movable plate is movably arranged on the surface of the purification box, a supporting assembly is arranged on the surface of the purification box close to the movable plate, an inner groove is formed at the rear of the filtering space, a plurality of groups of air permeable holes are arranged on the surface of the first mounting plate, and a plurality of groups of sealing assemblies are arranged in the first mounting plate. The supporting assembly can drive the filtering assembly to move out of the purification box, so that the operator does not need to perform high-altitude operation, and the fixing and loosening of the filtering assembly can be automatically realized through the movement of the supporting assembly. In the process of moving the supporting assembly out of the filtering space, the dry dust falling off the surface of the filtering assembly due to vibration can naturally fall onto the surface of the first mounting plate, so that the operation environment is prevented from being secondarily polluted.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of flue gas purification, and particularly discloses a flue gas particulate matter purification equipment for air pollution. BACKGROUND

[0002] The flue gas purification equipment refers to a complete set of technical equipment specially used for removing various pollutants from industrial flue gas, so that the flue gas can meet the national or local emission standards before being discharged into the atmosphere. It is not only dust removal, but also a comprehensive system with multiple links and technologies.

[0003] The bag-type dust collector, also known as a bag-type dust collector or a cloth bag dust collector, is a dry type of high-efficiency industrial dust removal equipment. It uses a cloth bag (filter bag) made of porous fiber material as the core filter element to capture and separate solid particles in flue gas and waste gas. After the dust-containing gas enters the dust collector from the air inlet and passes through the air distribution plate, the coarser dust settles down due to gravity or inertia. Then, the gas passes through the filter bag, and the dust is blocked and adsorbed on the outer surface of the filter bag. The clean gas purified by the filter bag enters the inside of the filter bag, collects in the clean gas chamber, and is finally discharged from the outlet through the fan. As the dust layer on the outer surface of the filter bag thickens, the operating resistance of the dust collector increases. In order to ensure the normal operation of the system, the accumulated dust must be removed regularly. The most commonly used method is pulse jet cleaning. Compressed air is injected through the nozzle of the blowing pipe, and a high-pressure and high-speed reverse airflow is instantaneously injected into the filter bag, causing the filter bag to expand and vibrate violently, and the dust cake attached to the surface is shaken off into the ash hopper below. The dust collected in the ash hopper is periodically or continuously discharged through the ash unloading valve (such as a star-shaped unloader) and other devices into the ash conveying system.

[0004] The existing flue gas particulate matter purification equipment for air pollution has filter bags installed at a high position inside the purification box. When replacing the filter bags, the operator needs to climb onto the top platform of the equipment or work at a high altitude inside the purification box. This not only has high labor intensity, but also has safety hazards. At the same time, the installation of the filter bags relies on rigid fasteners such as bolts and buckles. On the one hand, the intense vibration of pulse cleaning during equipment operation can cause the bolts to loosen and the buckles to fall off. On the other hand, tools such as wrenches and screwdrivers need to be carried to disassemble the fasteners one by one, which is complicated and time-consuming. In addition, when maintaining the equipment, the dry dust falling off the surface of the filter bag due to vibration will directly leak to the outside of the equipment, polluting the workshop operating environment. Additional personnel are needed to clean the leaked dust, increasing the cleaning cost, and the dust inhalation can harm the health of the operators. SUMMARY

[0005] Therefore, the present application aims to provide a flue gas particulate matter purification device for air pollution, which solves the problems that the filter bags in the prior art are mostly installed at a high position inside the purification box, the operator needs to climb onto the top platform of the device or enter the high position inside the purification box for filter bag replacement, which is not only labor-intensive but also has safety hazards, and the installation of the filter bag mostly relies on rigid fasteners such as bolts and buckles, on the one hand, the bolts are prone to loosening and the buckles are prone to falling off due to the violent vibration of pulse dust removal during device operation, on the other hand, tools such as wrenches and screwdrivers need to be carried for disassembling the fasteners one by one, which is complicated and time-consuming, and when the device is maintained, the dry dust falling off the surface of the filter bag due to vibration will directly leak to the outside of the device, polluting the workshop operating environment, additional personnel are needed to clean the leaked dust, increasing the cleaning cost, and the dust inhaled will harm the health of the operator.

[0006] To achieve the above purpose, the present application provides a flue gas particulate matter purification device for air pollution, comprising a purification box, a filter space is arranged inside the purification box, a through groove is formed on the surface of the purification box, a movable plate is movably arranged on the surface of the purification box, the movable plate covers the surface of the through groove, a support assembly is arranged on the surface of the purification box close to the movable plate, the support assembly is movably installed in the filter space, the support assembly comprises a first mounting plate, a second mounting plate and a filter assembly, the second mounting plate and the first mounting plate are arranged above and below the filter assembly respectively, an inner groove is formed at the rear of the filter space, pull assemblies are arranged on both sides of the inner groove and cooperate with the second mounting plate, a plurality of air permeable holes are arranged on the surface of the first mounting plate, a plurality of closed assemblies are arranged in the first mounting plate, and each closed assembly cooperates with each air permeable hole.

[0007] In the above technical solution, preferably, the filter assembly comprises a cage, a second clamping groove is arranged on the outer surface of the top of the cage, a first clamping groove is arranged on the outer surface of the bottom of the cage, a filter bag is sleeved on the outer surface of the cage, a clamping ring is arranged on the top of the filter bag, a rubber ring is arranged in the clamping ring, the inner wall of the clamping ring is clamped in the second clamping groove, an elastic strip is sleeved on the surface of the filter bag close to the bottom end, the elastic strip cooperates with the first clamping groove, a positioning ring is fixedly installed on the top of the cage, and the filter bag is below the positioning ring.

[0008] In the above technical solution, preferably, three groups of top through holes are uniformly formed on the surface of the second mounting plate, a groove is formed on the surface of the movable plate close to the second mounting plate, the end of the second mounting plate is slidably installed in the groove, a second sealing plate is fixedly arranged above the groove, first sealing plates are fixedly installed on both sides of the inside of the filter space, and the first sealing plates are at the same horizontal height as the second sealing plate.

[0009] Preferably, in the technical scheme, the front end of the first mounting plate is fixedly connected with the moving plate, the bottom of the other end of the first mounting plate is fixedly provided with a second pressing plate, the surface of the first mounting plate is uniformly provided with three groups of bottom through holes, the top through hole is vertically corresponding to the bottom through hole, the bottom through hole is staggered with the air hole, the bottom of the inner wall of the bottom through hole is provided with a supporting ring, the bottom of the first mounting plate and behind the bottom through hole is provided with a recycling groove, the inside of the recycling groove is movably provided with an L-shaped plug-in block, the top end of the L-shaped plug-in block is movably penetrated through the recycling groove and mounted into the bottom through hole, the top end of the L-shaped plug-in block is arranged above the supporting ring, the bottom of the first mounting plate is symmetrically provided with two side plates, three horizontal rods are arranged between the two side plates, the three horizontal rods are matched with the L-shaped plug-in blocks behind the three groups of bottom through holes respectively, the bottom end of the L-shaped plug-in block is fixedly connected with the horizontal rod directly below, the rear of the two side plates is connected with a first pressing plate, and the first pressing plate is connected with the second pressing plate through a first spring.

[0010] Preferably, in the technical scheme, the closed assembly comprises a sliding groove, the sliding groove is arranged in the middle of the first mounting plate, the rear end of the sliding groove penetrates through the first mounting plate, the front end of the inside of the sliding groove is provided with a second spring, the end of the second spring is fixedly connected with a long plate, the long plate is arranged in the middle end of the air hole, the surface of the long plate is uniformly provided with a plurality of matching holes, and the rear of the long plate protrudes from the first mounting plate.

[0011] Preferably, in the technical scheme, the pulling assembly comprises a first positioning frame, the first positioning frame is fixedly mounted at the bottom of the inner groove, displacement grooves are arranged at the two sides of the bottom of the second mounting plate, the displacement grooves are away from the moving plate, a second positioning frame is movably mounted in the inside of the displacement groove, a support is connected between the second positioning frame and the first positioning frame through a rotating shaft, a third spring is arranged in the inside of the displacement groove, and the front end of the third spring is fixedly connected with the outer surface of the second positioning frame.

[0012] Preferably, in the technical scheme, the side of the moving plate protrudes from the purification box, a gas cylinder is mounted on the side of the purification box, and the output end of the gas cylinder is connected with the moving plate.

[0013] Preferably, in the technical scheme, a smoke inlet pipe is mounted on one side of the bottom of the purification box, the smoke inlet pipe is below the supporting assembly, a smoke outlet pipe is mounted on the top of the purification box, a pulse dust cleaning system is arranged in the inside of the filtering space, and the pulse dust cleaning system is arranged above the second mounting plate.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1、The device achieves double fixation through the cooperation of the first mounting plate and the second mounting plate, and uses the lifting force of the second mounting plate, without the need for fasteners such as bolts and buckles, avoiding the loosening of fasteners due to vibration in traditional bolt fastening, and the dependence on tools during disassembly. The first spring-driven L-shaped plug-in block slides along the recovery groove, its top end is embedded in the first clamping groove at the bottom of the cage, and forms double radial constraints with the elastic strip at the bottom of the filter bag, which not only limits the axial movement of the cage, but also avoids the radial movement of the cage. The fixing action is automatically completed when the support assembly moves in, without the need for manual intervention, realizing assembly and fixation at the same time.

[0016] 2、When replacing the filter bag, the cylinder pulls the support assembly out, the pulling assembly moves synchronously, the third spring is compressed to drive the second positioning frame to slide along the displacement groove, the bracket drives the second mounting plate to move downward along the groove of the moving plate, so that the pressing force of the top through hole on the cage positioning ring disappears, the filter bag top ring is automatically unlocked, and the filter bag can be quickly disassembled, without the need for operators to perform high-altitude operations, greatly reducing the risk of falling from a high altitude.

[0017] 3、When the support assembly moves out of the filter space, the long plate is extruded from the inner wall of the filter space, the second spring releases the elastic force to drive the long plate to extend along the sliding groove, so that the matching hole on the surface of the long plate is out of position with the air hole of the first mounting plate, the long plate body forms a rigid seal on the air hole, and the dry dust falling off the surface of the filter bag due to vibration naturally falls to the surface of the first mounting plate (long plate and surrounding area), and cannot leak to the outside of the device through the air hole, avoiding secondary pollution of the operating environment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 is a schematic diagram of the internal structure of the filter space of the present application;

[0020] Figure 3 is a schematic diagram of the support assembly structure of the present application;

[0021] Figure 4 is an enlarged view of position A in the present application; Figure 3

[0022] Figure 5 is a schematic diagram of the first mounting plate structure of the present application;

[0023] Figure 6 is an enlarged view of position B in the present application; Figure 5

[0024] Figure 7 is a partial sectional view of the first mounting plate of the present application;​​

[0025] Figure 8 Structure diagram of the filter assembly of the present application.

[0026] In the figure: 1, purification tank; 2, moving plate; 3, air cylinder; 4, support assembly; 5, first mounting plate; 6, second mounting plate; 7, filter assembly; 8, top through hole; 9, bottom through hole; 10, support ring; 11, recovery groove; 12, L-shaped plug block; 13, cross bar; 14, side plate; 15, first pressing plate; 16, first spring; 17, second pressing plate; 18, air vent; 19, sliding groove; 20, second spring; 21, long plate; 22, matching hole; 23, cage; 24, filter bag; 25, first clamping groove; 26, elastic strip; 27, second clamping groove; 28, clamping ring; 29, inner groove; 30, first positioning frame; 31, displacement groove; 32, third spring; 33, second positioning frame; 34, support; 35, first sealing plate; 36, second sealing plate; 37, groove. DETAILED DESCRIPTION

[0027] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood and implemented, the present application will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other manners different from those described herein, therefore, the present application is not limited to the specific embodiments disclosed below.

[0029] As Figures 1-8The device for purifying flue gas particles for atmospheric pollution shown includes a purification box 1, a filter space is arranged in the purification box 1, a through groove is arranged on the surface of the purification box 1, a movable plate 2 is movably arranged on the surface of the purification box 1, the movable plate 2 covers the surface of the through groove, a support assembly 4 is arranged on the surface of the purification box 1 close to the movable plate 2, the support assembly 4 is movably arranged in the filter space, the support assembly 4 includes a first mounting plate 5, a second mounting plate 6 and a filter assembly 7, the second mounting plate 6 and the first mounting plate 5 are arranged above and below the filter assembly 7 respectively, an inner groove 29 is arranged at the rear of the filter space, pull assemblies are arranged on both sides of the inner groove 29 and cooperate with the second mounting plate 6, a plurality of air permeable holes 18 are arranged on the surface of the first mounting plate 5, a plurality of sealing assemblies are arranged in the first mounting plate 5 and cooperate with the plurality of air permeable holes 18, the filter assembly 7 can be moved out of the purification box 1 by the outward movement of the support assembly 4, the operator does not need to perform high-altitude operation, the risk of falling from a high altitude is greatly reduced, and the fixing and loosening of the filter assembly 7 can be automatically realized by the outward movement of the support assembly 4 without manual intervention, the assembly is fixed, when the support assembly 4 moves out of the filter space, the plurality of sealing assemblies seal the plurality of air permeable holes 18 respectively, the dry dust falling off the surface of the filter assembly 7 due to vibration can naturally fall onto the surface of the first mounting plate 5, and the operation environment is prevented from being polluted again.

[0030] The filter assembly 7 includes a cage 23, a second clamping groove 27 is arranged on the outer surface of the top of the cage 23, a first clamping groove 25 is arranged on the outer surface of the bottom of the cage 23, a filter bag 24 is sleeved on the outer surface of the cage 23, a clamping ring 28 is arranged on the top of the filter bag 24, a rubber ring is arranged in the clamping ring 28, the inner wall of the clamping ring 28 is clamped in the second clamping groove 27, an elastic strip 26 is sleeved on the surface of the bottom of the filter bag 24, and the elastic strip 26 cooperates with the first clamping groove 25, a positioning ring is fixedly installed on the top of the cage 23, and the filter bag 24 is below the positioning ring, the operator sleeves the flexible filter bag 24 upwards from the bottom of the cage 23 until the clamping ring 28 on the top of the filter bag 24 is aligned with the second clamping groove 27 on the top of the cage 23, the elastic shrinkage force of the rubber ring itself can actively clamp the inner wall of the clamping ring 28 in the second clamping groove 27, the axial positioning of the top of the filter bag 24 is realized, and the small gap between the second clamping groove 27 and the clamping ring 28 is filled through the deformation of the rubber ring, so that the gap at the top is eliminated, the elastic strip 26 is pre-sleeved on the outer surface of the bottom of the filter bag 24, the elastic strip 26 is embedded in the first clamping groove 25 on the bottom of the cage 23 after the top of the filter bag 24 is fixed, the elastic shrinkage force of the elastic strip 26 can make the bottom of the filter bag 24 tightly adhere to the surface of the first clamping groove 25, the upward and downward displacement of the filter bag 24 along the axial direction of the cage 23 is limited, and the bottom of the filter bag 24 is prevented from turning outward due to air flow.

[0031] The surface of the second mounting plate 6 is uniformly provided with three groups of top penetrating holes 8, the surface of the moving plate 2 close to the second mounting plate 6 is provided with a groove 37, the end of the second mounting plate 6 is slidingly installed in the groove 37, the upper part of the groove 37 is fixedly provided with a second sealing plate 36, two sides in the filtering space are fixedly installed with a first sealing plate 35, the first sealing plate 35 is at the same horizontal height with the second sealing plate 36, the surface of the moving plate 2 close to the second mounting plate 6 is provided with a groove 37, the end of the second mounting plate 6 is slidingly embedded in the groove 37, forming a sliding type cooperation, the surface of the second mounting plate 6 is uniformly provided with three groups of top penetrating holes 8, which are accurately matched with the size of the positioning ring at the top of the cage 23 of the filtering assembly 7, when installing, the cage 23 and the filter bag 24 on the surface thereof are vertically inserted into the top penetrating hole 8 from above the second mounting plate 6, until the positioning ring of the cage 23 contacts the top side of the top penetrating hole 8, at this time, the upward lifting force of the second mounting plate 6 will make the positioning ring press the clasp 28 at the top of the filter bag 24, so that the clasp 28 is tightly attached to the top side of the top penetrating hole 8, without additional bolts and buckles, the stable installation of the cage 23 and the filter bag 24 on the surface thereof on the second mounting plate 6 can be realized, when the moving plate 2 is closed, the end of the second sealing plate 36 is tightly attached to the side of the first sealing plate 35 (and the small gap is filled by a sealing rubber strip), forming a continuous sealing barrier at the top of the filtering space, blocking the smoke flow path.

[0032] The front end of the first mounting plate 5 is fixedly connected with the moving plate 2, the bottom of the other end of the first mounting plate 5 is fixedly provided with a second pressing plate 17, the surface of the first mounting plate 5 is uniformly provided with three groups of bottom penetrating holes 9, top penetrating holes 8 correspond to the bottom penetrating holes 9 vertically, the bottom penetrating holes 9 are staggered with air holes 18, the bottom end of the inner wall of the bottom penetrating hole 9 is provided with a supporting ring 10, the bottom of the first mounting plate 5 and behind the bottom penetrating hole 9 is provided with a recycling groove 11, the inside of the recycling groove 11 is movably provided with an L-shaped plug-in block 12, the top end of the L-shaped plug-in block 12 movably penetrates the recycling groove 11 and is mounted into the bottom penetrating hole 9, the top end of the L-shaped plug-in block 12 is arranged above the supporting ring 10, two side plates 14 are symmetrically arranged on the bottom of the first mounting plate 5, three horizontal rods 13 are arranged between the two side plates 14, the three horizontal rods 13 are matched with the L-shaped plug-in blocks 12 behind the three groups of bottom penetrating holes 9 respectively, the bottom end of the L-shaped plug-in block 12 is fixedly connected with the horizontal rod 13 directly below, the rear of the two side plates 14 is connected with the first pressing plate 15, the first pressing plate 15 is connected with the second pressing plate 17 through the first spring 16, the first mounting plate 5 is used as a bottom support and fixed carrier of the filtering assembly 7, and is formed with the second mounting plate 6 to be double-fixed vertically, the front end of the first mounting plate 5 is fixed with the moving plate 2 (and can be translated synchronously with the moving plate 2), the surface of the first mounting plate 5 is provided with three groups of bottom penetrating holes 9 which correspond to the top penetrating holes 8 of the second mounting plate 6 vertically, and are used for vertically penetrating the cage body 23 and the filter bag 24 on the surface thereof, when the supporting assembly 4 is moved out of the filtering space, the surface of the first pressing plate 15 is close to the front end surface of the filtering space, the second pressing plate 17 compresses the first spring 16, the L-shaped plug-in block 12 is completely accommodated in the recycling groove 11, the cage body 23 (covered with the filter bag 24) is vertically inserted into the top penetrating hole 8 of the second mounting plate 6, penetrates downward through the bottom penetrating hole 9 of the first mounting plate 5, and stops until the bottom of the filter bag 24 contacts the supporting ring 10 in the bottom penetrating hole 9, at this time, the elastic strip 26 at the bottom of the filter bag 24 is in the same horizontal plane with the L-shaped plug-in block 12, and is prepared for bottom clamping, after the moving plate 2 is pushed and drives the supporting assembly 4 to move into the filtering space, the pre-stretching elastic force of the first spring 16 is released, the elastic force drives the first pressing plate 15 to move forward, the side plate 14 moves forward, the three groups of horizontal rods 13 are synchronously moved forward under the drive of the side plate 14, the L-shaped plug-in block 12 is slid forward along the recycling groove 11 under the traction of the horizontal rod 13, finally the top end of the L-shaped plug-in block 12 is inserted into the first clamping groove 25 of the cage body 23, and is tightly attached with the elastic strip 26, the cage body 23 is firmly fixed at the bottom of the bottom penetrating hole 9 through the L-shaped plug-in block 12 contacting the elastic strip 26 and clamping into the first clamping groove 25, and is prevented from moving downward or shaking radially, when the supporting assembly 4 is completely moved into the filtering space and positioned, the second mounting plate 6 is lifted to the highest position (the two sides of the second mounting plate 6 are tightly attached with the first sealing plate 35, the front end of the second mounting plate 6 is tightly attached with the second sealing plate 36), the edge of the top penetrating hole 8 of the second mounting plate 6 exerts extrusion force on the positioning ring at the top of the cage body 23, and the clamping ring 28 is tightly attached to the top side of the top penetrating hole 8,Prevent the cage 23 from moving upward.

[0033] The closed assembly includes a sliding groove 19, which is opened in the middle of the first mounting plate 5, the rear end of the sliding groove 19 penetrates the first mounting plate 5, the front end inside the sliding groove 19 is provided with a second spring 20, the end of the second spring 20 is fixedly connected with a long plate 21, the long plate 21 blocks the middle end of the air hole 18, the surface of the long plate 21 is uniformly provided with a plurality of matching holes 22, the rear of the long plate 21 protrudes the first mounting plate 5, when the supporting assembly 4 is completely entered into the filtering space and positioned, the rear end of the long plate 21 is extruded by the surface of the filtering space, the second spring 20 is contracted, the long plate 21 is completely contracted in the sliding groove 19, at this time the matching holes 22 on the surface of the long plate 21 overlap the air hole 18, the flue gas can smoothly rise from the air hole 18, when the supporting assembly 4 is removed from the filtering space, the long plate 21 is stretched outwards by the elastic force of the second spring 20, at this time the matching holes 22 on the surface of the long plate 21 are dislocated with the air hole 18, the surface of the long plate 21 will block the air hole 18, during the moving-out process of the supporting assembly 4, the dry dust attached to the surface of the filtering assembly 7 may fall off due to vibration and airflow, these dusts will naturally fall to the surface of the first mounting plate 5 (the long plate 21 and the surrounding area), since the air hole 18 has been blocked by the long plate 21, the dusts cannot leak to the outside of the equipment through the air hole 18, and finally are collected on the surface of the first mounting plate 5, which are uniformly cleaned after maintenance.

[0034] The pulling assembly comprises a first positioning frame 30 fixedly installed at the bottom of the inner groove 29, displacement grooves 31 are formed at the bottom of the second mounting plate 6 on both sides, the displacement grooves 31 are away from the moving plate 2, a second positioning frame 33 is movably installed inside the displacement grooves 31, a support 34 is connected between the second positioning frame 33 and the first positioning frame 30 through a rotating shaft, a third spring 32 is arranged inside the displacement grooves 31, the front end of the third spring 32 is fixedly connected to the outer surface of the second positioning frame 33, under the elastic force of the third spring 32, when the moving plate 2 drives the supporting assembly 4 to move outward, the support 34 (the other end is fixed to the first positioning frame 30) connected to the second positioning frame 33 will generate a corresponding pulling force, since the second mounting plate 6 can slide along the groove 37, the pulling force will drive the second mounting plate 6 to slowly move downward along the groove 37, as the second mounting plate 6 descends, the extrusion force of the top penetrating hole 8 of the second mounting plate 6 on the positioning ring of the cage 23 gradually disappears, the clasp 28 at the top of the filter bag 24 is no longer pressed, the top fixing is automatically unlocked, and preparation is made for subsequent disassembly of the cage 23 and the filter bag 24, the supporting assembly 4 continues to move outward, the second mounting plate 6 descends along the groove 37 to the bottom of the groove 37, at this time, the angle of the support 34 no longer changes (the second mounting plate 6 cannot continue to descend), as the supporting assembly 4 further moves outward, the second positioning frame 33 slides backward along the displacement groove 31 under the transverse pulling force of the support 34, and the third spring 32 is compressed to provide power for subsequent resetting, in this stage, the second mounting plate 6 remains at the lowest point, the top fixing is continuously unlocked, and meanwhile, the compression of the third spring 32 plays a buffering role, avoiding damage to components due to inertia impact when the supporting assembly 4 moves outward, in the initial stage of moving the supporting assembly 4 into the filtering space, the third spring 32 releases the elastic potential energy stored before, pushes the second positioning frame 33 to slide forward along the displacement groove 31, until the second positioning frame 33 returns to the front end of the displacement groove 31, this action drives the support 34 to return to the initial angle, and preparation is made for the upward movement of the second mounting plate 6, at the same time that the third spring 32 is reset, the pre-tensioning elastic force of the first spring 16 is synchronously released, the L-shaped plug-in block 12 slides forward along the recovery groove 11, the top end of the L-shaped plug-in block 12 is inserted into the first clamping groove 25 of the cage 23, and tightly abuts against the elastic strip 26, so that the cage 23 is fixedly arranged at the bottom penetrating hole 9, and bottom fixing locking is completed, so that the filter element is stably arranged at the bottom, the supporting assembly 4 continues to move into the filtering space, the support 34 generates a forward and upward pushing force under the fixed support of the first positioning frame 30, drives the second mounting plate 6 to slowly rise along the groove 37, as the second mounting plate 6 rises, the top penetrating hole 8 gradually applies downward extrusion force to the positioning ring of the cage 23, the positioning ring further presses the clasp 28 at the top of the filter bag 24, so that the clasp 28 is tightly abutted against the side surface of the top penetrating hole 8, top fixing locking is completed, and finally, the filter element is synchronously positioned in the upward and downward double fixing.

[0035] The side of the moving plate 2 protrudes from the purification box 1, the side of the purification box 1 is provided with a gas cylinder 3, the output end of the gas cylinder 3 is connected with the moving plate 2, the gas cylinder 3 is installed on the side of the purification box 1, and the output end is rigidly connected with the moving plate 2 (the part protruding from the side of the purification box 1), so as to replace the traditional manual pushing or pulling of the moving plate 2 and provide stable and controllable linear power for the moving in or out of the supporting assembly 4.

[0036] A smoke inlet pipe is installed on one side of the bottom of the purification box 1 and is below the supporting assembly 4, the smoke inlet pipe is the only entrance for dust-containing flue gas into the equipment, needs to be connected with a main flue gas pipeline of a workshop, a flow regulating valve needs to be reserved during design, a smoke outlet pipe is installed on the top of the purification box 1 and is communicated with the filtering space and is an outlet for clean flue gas and can be connected with an induced draft fan, a pulse dust cleaning system is arranged in the filtering space and above the second mounting plate 6, is arranged in the filtering space and directly above the second mounting plate 6, and the core includes a compressed air tank, a pulse valve and a blowing pipe, the blowing pipe holes are one-to-one corresponding to the filter bags 24 and are opposite to the top of the cage 23 and are used for regularly removing the dust on the surface of the filter bags 24.

[0037] Working principle: first, before the equipment starts, when the support assembly 4 is outside the purification tank 1, the second mounting plate 6 is lowered to the bottom of the groove 37, at this time the cage 23 (outer cover filter bag 24) is vertically inserted from the top of the second mounting plate 6 through hole 8, down through the bottom of the first mounting plate 5 through hole 9, until the bottom of the filter bag 24 contacts the supporting ring 10 in the bottom through hole 9, then the control system supplies compressed air to the air cylinder 3, the piston rod of the air cylinder 3 retracts, pushes the moving plate 2 to move to the inside of the purification tank 1, synchronously drives the support assembly 4 to slide into the filtering space, during the moving-in process of the support assembly 4, the pulling assembly cooperates, the third spring 32 releases the elastic potential energy, pushes the second positioning frame 33 to the home position, the bracket 34 drives the second mounting plate 6 to rise along the groove 37, at the same time the first spring 16 releases the elastic force, the L-shaped plug-in block 12 slides forward along the recovery groove 11 and is inserted into the first clamping groove 25 of the cage 23, and is attached to the elastic strip 26, completing the bottom fixation of the filter assembly 7, when the support assembly 4 is completely positioned, the second mounting plate 6 rises to the highest position, its top through hole 8 exerts extrusion force on the positioning ring of the cage 23, pressing the clasp 28 (rubber ring seal) at the top of the filter bag 24, realizing the top fixation, finally the filter assembly 7 is stably fixed in the filtering space through double fixation from top to bottom, the rear end of the long plate 21 is extruded by the inner wall of the filtering space, the second spring 20 is retracted, the long plate 21 is completely retracted into the sliding groove 19, and the matching hole 22 overlaps the air permeable hole 18, opening the channel for the flue gas flow; at the same time, the first sealing plate 35 and the second sealing plate 36 are tightly attached (the sealing rubber strip fills the gap), forming a sealed barrier at the top of the filtering space to prevent flue gas bypass flow, then the dust-containing flue gas (such as workshop production dust flue gas) enters the equipment through the flue inlet pipe at the bottom of the purification tank 1, the flow regulating valve of the flue inlet pipe adjusts the inlet air speed according to the flue gas concentration, the induced draft fan connected to the flue outlet pipe starts, forming a negative pressure in the filtering space, driving the flue gas to flow upward, when the flue gas passes through the filter bag 24, the particulate matter is physically intercepted by the filter bag 24, the clean flue gas enters the inside of the cage 23, and then passes through the top through hole 8 of the second mounting plate 6 to enter the area above the second mounting plate 6, the clean flue gas above the second mounting plate 6 is discharged from the equipment through the flue outlet pipe at the top of the purification tank 1 under the continuous action of the induced draft fan negative pressure, in this process, the air cylinder 3 remains at the end of the stroke, the pulling assembly maintains the locking of the second mounting plate 6, ensuring that there is no leakage in the flue gas flow path, in the next step, as the filtration time increases, the dust on the outer surface of the filter bag 24 thickens, the sensor sends a dust cleaning signal to the PLC control system, and the equipment starts the pulse dust cleaning process;

[0038] When the filter bag 24 reaches the end of its service life, the air blower and the flue gas inlet valve are stopped, the flue gas supply is cut off, the air cylinder 3 is connected to the reverse compressed air, the air cylinder 3 is extended, the moving plate 2 is pulled to move outward from the purification tank 1, and the support assembly 4 is synchronously moved outward, during which the pulling assembly unlocks the top fixing, the bracket 34 generates a backward downward pulling force, the second mounting plate 6 is driven to descend along the groove 37, the extrusion force of the top through hole 8 on the positioning ring disappears, the clasp 28 at the top of the filter bag 24 is unlocked, when the second mounting plate 6 descends to the bottom of the groove 37, the second positioning frame 33 compresses the third spring 32 to buffer the inertia of the outward movement of the support assembly 4, during which the sealing assembly moves synchronously, the long plate 21 is separated from the extrusion of the inner wall of the filtering space, the second spring 20 releases the elastic force, the long plate 21 is pulled to extend backward along the sliding groove 19, the hole 22 is misaligned with the air hole 18, the long plate 21 blocks the air hole 18, and the dust falling off the surface of the filter bag 24 falls to the surface of the first mounting plate 5 (the long plate 21 and the surrounding area), and because the air hole 18 is blocked, the dust cannot leak to the external environment.

[0039] Finally, the operator disassembles the old filter bag 24 outside the purification tank 1, since the second mounting plate 6 is lowered as a whole, the operator does not need to climb to a high place to disassemble it, but only needs to pull the cage 23 upward so that it is pulled out of the top through hole 8 of the second mounting plate 6 and the bottom through hole 9 of the first mounting plate 5.

[0040] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A flue gas particulate matter purification device for atmospheric pollution, comprising a purification tank (1), characterized in that, The inside of the purification box (1) is provided with a filtering space, the surface of the purification box (1) is provided with a through slot, the surface of the purification box (1) is movably provided with a moving plate (2), the moving plate (2) covers the surface of the through slot, the surface of the moving plate (2) is provided with a supporting assembly (4) close to the surface of the purification box (1), the supporting assembly (4) is movably installed in the filtering space, the supporting assembly (4) comprises a first mounting plate (5), a second mounting plate (6) and a filtering assembly (7), the second mounting plate (6) and the first mounting plate (5) are respectively arranged above and below the filtering assembly (7), the rear of the filtering space is provided with an inner groove (29), the inner groove (29) is provided with a pulling assembly on both sides and is matched with the second mounting plate (6), the surface of the first mounting plate (5) is arranged with a plurality of air holes (18), and the inside of the first mounting plate (5) is provided with a plurality of sealing assemblies, and the plurality of sealing assemblies are matched with the plurality of air holes (18) respectively; The surface of the second mounting plate (6) is uniformly provided with three groups of top through holes (8), the surface of the moving plate (2) is provided with a groove (37) close to the surface of the second mounting plate (6), the end of the second mounting plate (6) is slidably installed in the groove (37), the upper side of the groove (37) is fixedly provided with a second sealing plate (36), and the two sides in the filtering space are fixedly installed with first sealing plates (35); the first sealing plate (35) and the second sealing plate (36) are at the same horizontal height; The front end of the first mounting plate (5) is fixedly connected with the moving plate (2), the bottom of the other end of the first mounting plate (5) is fixedly installed with a second pressing plate (17), the surface of the first mounting plate (5) is uniformly provided with three groups of bottom through holes (9), the top through holes (8) and the bottom through holes (9) are vertically corresponding, the bottom through holes (9) and the air holes (18) are staggered, the bottom end of the inner wall of the bottom through hole (9) is provided with a supporting ring (10), the bottom of the first mounting plate (5) and located rear of the bottom through hole (9) is provided with a recycling groove (11), the inside of the recycling groove (11) is movably provided with an L-shaped plug-in block (12), the top end of the L-shaped plug-in block (12) is movably penetrated through the recycling groove (11) and installed into the bottom through hole (9), the top end of the L-shaped plug-in block (12) is arranged above the supporting ring (10), the two sides of the bottom of the first mounting plate (5) are symmetrically installed with two side plates (14), three horizontal rods (13) are arranged between the two side plates (14), the three horizontal rods (13) are respectively matched with the L-shaped plug-in blocks (12) behind the three groups of bottom through holes (9), the bottom end of the L-shaped plug-in block (12) is fixedly connected with the horizontal rod (13) directly below, the rear of the two side plates (14) is connected with a first pressing plate (15), and the first pressing plate (15) and the second pressing plate (17) are connected with a first spring (16). The closed assembly includes a sliding groove (19) which is opened in the middle of the first mounting plate (5), the rear end of the sliding groove (19) penetrates the first mounting plate (5), the front end inside the sliding groove (19) is provided with a second spring (20), the end of the second spring (20) is fixedly connected with a long plate (21), the long plate (21) blocks the middle end of the air hole (18), a plurality of matching holes (22) are uniformly opened on the surface of the long plate (21), the rear of the long plate (21) protrudes from the first mounting plate (5). The pulling assembly includes a first positioning frame (30) which is fixedly installed at the bottom of the inner groove (29), displacement grooves (31) are opened on both sides of the bottom of the second mounting plate (6), the displacement grooves (31) are away from the moving plate (2), a second positioning frame (33) is movably installed inside the displacement groove (31), the second positioning frame (33) and the first positioning frame (30) are connected with a support (34) through a rotating shaft, a third spring (32) is arranged inside the displacement groove (31), and the front end of the third spring (32) is fixedly connected with the outer surface of the second positioning frame (33).

2. The flue gas particulate matter purification apparatus for atmospheric pollution according to claim 1, characterized by The filter assembly (7) includes a cage (23), the outer surface of the top of the cage (23) is provided with a second clamping groove (27), the outer surface of the bottom of the cage (23) is provided with a first clamping groove (25), the outer surface of the cage (23) is sleeved with a filter bag (24), the top of the filter bag (24) is provided with a clamping ring (28), the inside of the clamping ring (28) is provided with a rubber ring, the inner wall of the clamping ring (28) is clamped in the second clamping groove (27), the surface of the bottom of the filter bag (24) is sleeved with an elastic strip (26), the elastic strip (26) is matched with the first clamping groove (25), and the top of the cage (23) is fixedly installed with a positioning ring.

3. The flue gas particulate matter purification apparatus for atmospheric pollution according to claim 1, characterized by The side of the moving plate (2) protrudes from the purification box (1), the air cylinder (3) is installed on the side of the purification box (1), and the output end of the air cylinder (3) is connected with the moving plate (2).

4. The flue gas particulate matter purification apparatus for atmospheric pollution according to claim 1, characterized by The bottom of the purification box (1) is provided with a smoke inlet pipe, the smoke inlet pipe is below the supporting assembly (4), the top of the purification box (1) is provided with a smoke outlet pipe, and the inside of the filter space is provided with a pulse dust cleaning system, and the pulse dust cleaning system is arranged above the second mounting plate (6).

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