CN111550815A - Catalytic combustion device with quick-replaceable filter material - Google Patents

Abstract

The invention discloses a catalytic combustion device with a quick-replaceable filter material, which comprises a waste gas filtering device, wherein the waste gas filtering device is provided with an air inlet and an air outlet, two opposite side walls of the waste gas filtering device are respectively provided with an opening, and a first movable stop gate and a second movable stop gate are respectively arranged at the two openings; the propelling device is arranged at the edge of the opening and used for propelling the filter material into the waste gas filtering device and replacing the filter material; the invention solves the defects of a waste gas filtering device in the existing catalytic combustion device, solves the problem of slow speed in the waste gas filtering material replacing process, does not need to be aligned and installed one by one, and automatically sends new filtering materials which are put in advance into the device and discharges the filtering materials of waste gas when replacing.

Description

Catalytic combustion device with quick-replaceable filter material

Technical Field

The present invention relates to a catalytic combustion apparatus.

Background

At present, air pollution is one of the most outstanding environmental problems in China, industrial waste gas is a main source of air pollution, and industrial organic waste gas mainly comprises organic compounds such as carbon hydrocarbon compounds, benzene and benzene series, alcohols, ketones, phenols, aldehydes, esters, amines, nitriles, cyanogen and the like and is mainly generated from automobile tail gas and industries such as electronics, chemical industry, petrochemical industry, coating, printing, coating, furniture, leather and the like;

the method can be used for purifying waste gas solvent, the waste gas generated in each process is purified, the organic waste gas with medium concentration is subjected to low-temperature oxidation flameless combustion under the action of a catalyst, and organic components are oxidized into CO2 and H2O.

However, the conventional exhaust gas filter material is slow in replacing process, and needs to be aligned and installed one by one, and when the filter material is replaced, the waste filter material needs to be manually cleaned, a large amount of harmful substances exist on the filter material, hands are easily dirty, and people need to carefully and wingedly replace the filter material, so that the replacing speed is seriously reduced, and a replacing mechanism which can quickly discharge the waste filter material, automatically replace the new filter material and automatically adjust and clamp the position cannot be provided.

Thus, the conventional catalytic combustion apparatus is further improved.

Disclosure of Invention

The invention aims to provide a catalytic combustion device with a quick-replaceable filter material.

In order to achieve the purpose, the invention adopts the following scheme:

the catalytic combustion device with the filtering material capable of being replaced quickly comprises a waste gas filtering device, wherein the waste gas filtering device is provided with a gas inlet and a gas outlet,

two opposite side walls of the waste gas filtering device are respectively provided with an opening, and a first movable stop door and a second movable stop door are respectively arranged at the two openings;

the propelling device is arranged at the edge of the opening and used for propelling the filter material into the waste gas filtering device and replacing the filter material;

the shutter linkage mechanism is arranged between the first movable shutter and the propelling device for linkage connection, and is arranged between the second movable shutter and the propelling device for linkage connection, and when the propelling device advances, the first movable shutter and the second movable shutter are automatically opened;

the automatic centering jig mechanism is arranged in the waste gas filtering device and used for clamping the filtering material, and a guide structure is arranged at the edge of the automatic centering jig mechanism and used for assisting the centering position of the filtering material;

the automatic centering jig mechanism drives the filter material to automatically loosen when the propelling device advances, and drives the filter material to automatically clamp when the propelling device retreats;

through above structure, change filter media that can be quick can carry out the filter media simultaneously and automatically put the clamp just, save time, avoid with abandonment filter media direct contact.

Further, the air conditioner is provided with a fan,

the upper end of the first movable stop gate is provided with a hinge seat, and the hinge seat is arranged on the upper surface corresponding to one opening so that the first movable stop gate can be turned outwards;

be provided with vertical spout for being equipped with another opening part top edge of first activity shutter, the activity is provided with the second activity shutter from top to bottom in the vertical spout, can guarantee exhaust gas filtering device's leakproofness through above structure, can send out the filter media through first activity shutter and second activity shutter simultaneously.

Further, advancing device is including setting up the backup pad at the opening edge that is close to the second activity shutter, the backup pad surface is provided with vertical spout, vertical spout internalization is provided with the slider, the slider upper surface is provided with the push pedal, the push pedal surface is provided with controls the handle, the backup pad lower surface is provided with many supporting legs, provides one kind and advances to impel the structure, can be relaxed will prepare in filter media propelling movement to the exhaust gas filtering device.

Further, the air conditioner is provided with a fan,

the shutter linkage mechanism comprises first articulated shafts arranged on two side walls of the upper end of the push plate, second articulated shafts arranged on two side walls of the upper end of the second movable shutter, and second connecting rods are articulated between the first articulated shafts and the second articulated shafts on the corresponding side;

the sliding block extends to the lower part of the supporting plate and is provided with a longitudinal rod, two side walls of the longitudinal rod are respectively provided with a third hinge shaft, the lower ends of two side walls of the first movable stop door are respectively provided with a fourth hinge shaft, and a first connecting rod is hinged between the third hinge shaft and the fourth hinge shaft on the corresponding side;

can play the linkage effect through above structure, can guarantee at the in-process that advancing at advancing device, first movable stop gate and second movable stop gate are automatic to be opened, prevent that the filter media from blockking up, and advancing device retreats simultaneously, can be automatic closed, guarantees exhaust gas filtering device's leakproofness.

Further, first connecting rod and first articulated shaft set up the effect of stepping down in the activity process for the arc, play the effect of stepping down.

Further, automatic tool mechanism of just ajusting is including setting up two rotation bases at exhaust gas filter device internal surface, and the symmetry is provided with tool mechanism respectively in two rotation bases, tool mechanism sets up including rotating and carries out pivoted pivot section of thick bamboo on rotating the base, pivot section of thick bamboo circumference surface is provided with the elastic clamping board, the symmetry in elastic clamping board both ends is provided with oblique deflector, and two oblique deflectors of symmetry are clockwise respectively to pivot section of thick bamboo direction slope, through above structure, can guarantee the pivot section of thick bamboo on oblique deflector rotation in-process, and the automatic pendulum of new filter media of skew is just around controlling, and reinforcing filter effect presss from both sides tightly the filter media simultaneously, guarantees the stability of filter media in the use.

Furthermore, the elastic clamping plate comprises a fixed clamping plate fixedly connected with the peripheral outer wall of the rotating shaft cylinder, a telescopic rod is arranged on the surface of the fixed clamping plate, the end part of the telescopic rod is connected with an extrusion plate, a spring which can enable the extrusion plate to be compressed outwards is sleeved outside the telescopic rod, a plurality of auxiliary clamping rods are transversely and uniformly distributed on the edge of the extrusion plate, and a abdicating groove which can abdicate the auxiliary clamping rods is formed in one end, close to the auxiliary clamping rods, of the inclined guide plate; through above structure, can guarantee through the cooperation of supplementary tight pole of clamp and oblique deflector that can stretch out and draw back and press from both sides tightly the time, automatic just, elasticity setting prevents that the filter media from pressing from both sides tight back deformation simultaneously.

Further, tool elasticity link gear sets up the pinion stand at a pivot section of thick bamboo side-supporting plate lower surface including setting up the first bevel gear at a pivot section of thick bamboo tip, rotate on the pinion stand and install second bevel gear, first bevel gear meshes the transmission with corresponding one side second bevel gear, the second bevel gear rear end is provided with the straight-teeth gear, the vertical pole upper surface is provided with vertical rack, vertical rack with the straight-teeth gear meshes the transmission, provides a drive mechanism.

Furthermore, a waste filter screen storage box is arranged below the opening close to one side of the first movable stop door, so that waste gas can be easily stored in the waste filter screen storage box.

Further, be provided with the sealed metal baffle who is used for sealed exhaust gas filter equipment below the tool mechanism is ajusted in automation, guarantee that waste gas does not ooze in filtering process.

In summary, compared with the prior art, the invention has the beneficial effects that:

the invention solves the defects of the waste gas filtering device in the existing catalytic combustion device, solves the problem of slow speed in the waste gas filtering material replacing process, does not need to be aligned and installed one by one, and avoids hands from directly contacting harmful substances on the waste gas filtering material and easily causing dirty hands by pushing the new pre-placed filtering material to be automatically fed into and installed and discharging the waste gas filtering material during replacing, thereby greatly improving the replacing speed, providing a replacing mechanism which can quickly discharge waste filtering material, automatically replace new filtering material and automatically adjust and clamp the position, and having simple structure and convenient use.

Drawings

FIG. 1 is one of the perspective views of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is an enlarged view of a portion of the present invention at A;

FIG. 4 is a schematic view of the internal structure of the present invention;

FIG. 5 is a front view of the present invention;

FIG. 6 is a schematic view of a rapid exchange filter according to the present invention;

FIG. 7 is a second schematic view of a rapid exchange filter according to the present invention;

FIG. 8 is one of the exploded views of the present invention;

FIG. 9 is an enlarged view of a portion of the present invention at B;

FIG. 10 is a second exploded view of the present invention;

FIG. 11 is an enlarged view of a portion of the present invention at C;

FIG. 12 is a second schematic diagram of the internal structure of the present invention;

the reference numbers illustrate: 1. an exhaust gas filtering device; 2. a first movable shutter; 3. a second movable shutter; 4. a propulsion device; 5. a shutter linkage mechanism; 6. an automatic aligning jig mechanism; 7. the fixture is provided with an elastic linkage mechanism; 8. a waste filter screen storage box; 101. an air inlet; 102. an air outlet; 103. an opening; 201. a hinged seat; 202. vertical sliding grooves 401 and supporting plates; 402. a longitudinal chute; 403. a slider; 404. pushing the plate; 405. a control handle; 406. supporting legs; 501. a first hinge shaft; 502. a second hinge shaft; 503. a second link; 504. a longitudinal rod; 505. a third hinge shaft; 506. a fourth hinge shaft; 507. a first link; 601. rotating the base; 602. a jig mechanism; 603. a shaft barrel; 604. an elastic clamping plate; 605. an inclined guide plate; 6041. fixing the clamping plate; 6042. a telescopic rod; 6043. a pressing plate; 6044. a spring; 6045. an auxiliary clamping rod; 6046. a abdicating groove rod; 701. a first bevel gear; 702. a gear seat; 703. a second bevel gear; 704. a spur gear; 705. a longitudinal rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-12, the present invention provides a technical solution:

the catalytic combustion device with the filtering material capable of being replaced quickly comprises a waste gas filtering device 1, wherein the waste gas filtering device 1 is provided with an air inlet 101 and an air outlet 102, two opposite side walls of the waste gas filtering device 1 are respectively provided with an opening 103, and a first movable stop gate 2 and a second movable stop gate 3 are respectively arranged at the two openings 103;

the propulsion device 4 is arranged at the edge of the opening 103, and the propulsion device 4 is used for propelling the filter material into the waste gas filtering device 1 and replacing the filter material;

the shutter linkage mechanism 5 is arranged between the first movable shutter 2 and the propelling device 4 for linkage connection, and is arranged between the second movable shutter 3 and the propelling device 4 for linkage connection, and when the propelling device 4 advances, the first movable shutter 2 and the second movable shutter 3 are automatically opened;

the automatic aligning jig mechanism 6 is arranged in the waste gas filtering device 1 and used for clamping the filtering material, and a guide structure is arranged at the edge of the automatic aligning jig mechanism 6 and used for assisting the aligning position of the filtering material;

the automatic centering device comprises a jig tightness linkage mechanism 7, wherein the jig tightness linkage mechanism 7 is arranged between the automatic centering jig mechanism 6 and the propelling device 4 for linkage connection, when the propelling device 4 advances, the automatic centering jig mechanism 6 drives the filter material to automatically loosen, and when the propelling device 4 retreats, the automatic centering jig mechanism 6 drives the filter material to automatically clamp;

the working principle of the invention is as follows:

during operation, if need more new filter media, at first put the filter media on advancing device 4 and carry out preceding alignment, after the alignment finishes, promote advancing device 4 and make the filter media advance towards waste gas filter equipment 1 inside, in the advancing process, new filter media can promote old filter media and remove, simultaneously, because advancing device 4 is in the activity, carry out the simultaneous movement through tool elasticity link gear 7 and shutter link gear 5, advancing device 4 drives first activity shutter 2 and second activity shutter 3 through shutter link gear 5 and opens simultaneously, drive tool elasticity link gear 7 through elasticity link gear 7 and loosen old filter media, elasticity tool link gear 7 contracts, through old filter media roof pressure old filter media of new filter media, old shutter drops from one side, finally, new filter media reachs just the aluminum product position of tool, withdraw from advancing device 4, advancing device 4 drives elasticity link gear 7 and makes automatic alignment mechanism 6 carry out the supplementary alignment and simultaneously to new filter media to the alignment of advancing device And in the process of clamping and retreating, the first movable stop door 2 and the second movable stop door 3 are closed through the stop door linkage mechanism 5, and a series of replacing actions are completed.

The upper end of the first movable stop gate 2 is provided with a hinge seat 201, and the hinge seat 201 is arranged on the upper surface corresponding to one opening 103 so that the first movable stop gate 2 can be turned outwards;

a vertical sliding groove 202 is arranged at the upper edge of the other opening 103 provided with the first movable stop gate 2, and a second movable stop gate 3 is movably arranged in the vertical sliding groove 202 up and down;

when the filter is in work, the first movable stop door 2 can be turned outwards to provide a dismounting channel for the old filter material, so that the old filter material is convenient to dismount;

the second movable shutter 3 rises and can provide a channel for the new filter material to enter the inner cavity of the waste gas filtering device 1.

The propulsion device 4 comprises a supporting plate 401 arranged at the edge of an opening 103 close to a second movable stop door 3, wherein a longitudinal sliding groove 402 is formed in the surface of the supporting plate 401, a sliding block 403 is movably arranged in the longitudinal sliding groove 402, a push plate 404 is arranged on the upper surface of the sliding block 403, a control handle 405 is arranged on the surface of the push plate 404, and a plurality of supporting legs 406 are arranged on the lower surface of the supporting plate 401;

the use method of the structure is as follows;

when the filter is used, the blocked filter material is placed on the upper surface of the supporting plate 401 in advance, and when the filter material needs to be replaced and fed, the push plate 404 is pushed, so that the sliding block 403 of the push plate 404 moves back and forth in the longitudinal sliding groove 402.

The shutter linkage mechanism 5 comprises a first hinge shaft 501 arranged on two side walls of the upper end of a push plate 404, a second hinge shaft 502 arranged on two side walls of the upper end of a second movable shutter 3, and a second connecting rod 503 is hinged between the first hinge shaft 501 and the second hinge shaft 502 on the corresponding side;

the sliding block 403 extends to the lower part of the supporting plate 401 and is provided with a longitudinal rod 504, two side walls of the longitudinal rod 504 are respectively provided with a third hinge shaft 505, the lower ends of two side walls of the first movable shutter 2 are respectively provided with a fourth hinge shaft 506, and a first connecting rod 507 is hinged between the third hinge shaft 505 and the fourth hinge shaft 506 on the corresponding side;

the above structure principle:

in the process that the push plate 404 moves forwards, the second movable stop door 3 is driven to move up and down through the second connecting rod 503;

meanwhile, the first movable stop door 2 is driven by the first connecting rod 507 to turn over and open, so that the purpose of synchronous linkage is realized.

The first link 507 and the first hinge shaft 501 are arc-shaped and play a role of abdicating in the moving process.

The automatic straightening jig mechanism 6 comprises two rotating bases 601 arranged on the inner surface of an exhaust gas filtering device 1, jig mechanisms 602 are symmetrically arranged in the two rotating bases 601 respectively, the jig mechanisms 602 comprise rotating shaft cylinders 603 which are rotatably arranged in the rotating bases 601 to rotate, elastic clamping plates 604 are arranged on the circumferential outer surfaces of the rotating shaft cylinders 603, inclined guide plates 605 are symmetrically arranged at two ends of each elastic clamping plate 604, and the two symmetrical inclined guide plates 605 are inwards inclined towards the end parts of the rotating shaft cylinders 603 respectively;

during operation, two pivot section of thick bamboo 603 relative directions rotate, and in the rotation process, oblique deflector 605 is close to exhaust gas filtering device 1 upper surface gradually, and exposes gradually, has the filter media of deviation around with supplementary direction alignment, and the gradual filter media that makes is aligned and is removed, rotates to elastic clamping plate 604 surface laminating filter media at last, and the elastic clamping plate 604 of both sides presss from both sides tight fixedly to the filter media.

The elastic clamping plate 604 comprises a fixed clamping plate 6041 fixedly connected with the outer wall of the circumference of a rotating shaft barrel 603, a telescopic rod 6042 is arranged on the surface of the fixed clamping plate 6041, the end part of the telescopic rod 6042 is connected with a squeezing plate 6043, a spring 6044 capable of enabling the squeezing plate 6043 to be compressed outwards is sleeved outside the telescopic rod 6042, a plurality of auxiliary clamping rods 6045 are transversely and uniformly distributed on the edge of the squeezing plate 6043, and a abdicating groove 6046 capable of abdicating the plurality of auxiliary clamping rods 6045 is arranged at one end, close to the plurality of auxiliary clamping rods 6045, of an inclined guide plate 605;

in order to prevent the filter media from being deformed and influencing the filtering effect after being clamped tightly, the extrusion plate 6043 is elastic, so that the problem can be solved, the auxiliary straightening effect of the automatic straightening jig mechanism 6 is smoother, and the smoothness effect is ensured by the matching of the auxiliary clamping rods 6045 and the abdicating grooves 6046.

The tool tightness linkage mechanism 7 comprises a first bevel gear 701 arranged at the end part of a rotating shaft barrel 603 and a gear seat 702 arranged on the lower surface of a supporting plate 401 at one side of the rotating shaft barrel 603, wherein a second bevel gear 703 is rotatably arranged on the gear seat 702, the first bevel gear 701 and the second bevel gear 703 at the corresponding side are in meshing transmission, a straight gear 704 is arranged at the rear end of the second bevel gear 703, a longitudinal rack 705 is arranged on the upper surface of a longitudinal rod 504, and the longitudinal rack 705 and the straight gear 704 are in meshing transmission;

the structure principle is that the longitudinal rack 705 moves back and forth to drive the straight gear 704 to rotate, the second bevel gear 703 is driven in the rotating process of the straight gear 704, the second bevel gear 703 is meshed with the first bevel gear 701, the first bevel gear 701 rotates, the rotating process of the first bevel gear 701 drives the rotating shaft barrel 603 to rotate, and the rotating shaft barrel 603 rotates to switch the clamping and loosening states of the automatic aligning jig mechanism 6.

A waste filter screen containing box 8 is arranged below the opening 103 on one side close to the first movable stop door 2.

A sealing metal baffle plate for sealing the waste gas filtering device 1 is arranged below the automatic straightening jig mechanism 6.

The flameless combustion is easy to control, the combustion control temperature is lower (between 250 ℃ and 300 ℃) and the external heat energy consumption is less. Different exhaust gas components need to be selected from different types of catalysts and combustion processes. The gas entering the catalytic combustion unit must be filtered and preheated to reach the ignition temperature of the catalyst (between 220 ℃ and 250 ℃). Remove dust particles, liquid drops and other catalytic inhibitors, and avoid the blockage of a catalytic bed layer and the poisoning failure of the catalyst.

The operation is convenient, and the automatic control can be realized when the equipment works;

the energy consumption is low, the catalytic combustion chamber adopts a gold catalyst taking honeycomb ceramic shape as a carrier, the resistance is small, and the activity is high. When the concentration of the waste gas vapor reaches more than 2000ppm, the spontaneous combustion can be maintained;

the equipment is provided with a fire-retardant dust-removing system, an explosion-proof pressure-relief system, an overtemperature alarm system and an advanced automatic control system;

the resistance is small, the purification rate is high, and the specific surface area is large by adopting the prior advanced noble metal honeycomb ceramic carrier catalyst;

the waste heat can be recycled, namely the waste heat can return to the drying tunnel to reduce the power consumption in the original drying tunnel and can also be used as a heat source in the aspect of organs;

the occupied area is small, namely 70 to 80 percent of the same industry for producing crystals in the same type, and no special requirement is required on equipment foundation;

the service life is long, the catalyst is replaced generally for more than 8000 hours, and the carrier can be regenerated;

the process mainly adopts a high-efficiency catalyst, and waste gas is subjected to oxidation reaction under the action of the catalyst to generate nontoxic and odorless carbon dioxide CO2 and water H2O.

The catalytic combustion method is to heat the waste gas to the starting temperature, and to burn the waste gas without flame under the action of the catalyst to generate carbon dioxide and water and release a large amount of heat. The catalytic combustion purifier consists of five parts, including catalytic chamber, electric heating box, heat exchanger, blower and electric control cabinet, based on the catalytic combustion mechanism. When the waste gas enters the device firstly to the heat exchanger, the temperature of the organic waste gas is raised as much as possible by the waste heat after catalytic combustion through the heat exchanger, the temperature is usually raised by 6 t-50-60 degrees, then the organic waste gas is sent into the electric heating box, heated to the starting temperature through the electric heating pipe, and a large amount of heat is released. At this time, when the concentration of the exhaust gas is a certain amount, the temperature rise of the generated waste heat after passing through the heat exchanger reaches the ignition temperature, so that the catalytic combustion device reaches dynamic heat balance, and a large amount of electric heating power is saved.

While there have been shown and described the fundamental principles and principal features of the invention and advantages thereof, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are given by way of illustration of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. Catalytic combustion device with but quick replacement filter media, including exhaust gas filtering device (1), be provided with air inlet (101) and gas outlet (102) on exhaust gas filtering device (1), its characterized in that:

two opposite side walls of the waste gas filtering device (1) are respectively provided with an opening (103), and a first movable stop door (2) and a second movable stop door (3) are respectively arranged at the two openings (103);

the propulsion device (4), the propulsion device (4) is arranged at the edge of the opening (103), and the propulsion device (4) is used for propelling the filter material into the waste gas filtering device (1) and replacing the filter material;

the door blocking linkage mechanism (5) is arranged between the first movable door (2) and the propelling device (4) for linkage connection, and is arranged between the second movable door (3) and the propelling device (4) for linkage connection, and when the propelling device (4) advances, the first movable door (2) and the second movable door (3) are automatically opened;

the automatic straightening jig mechanism (6) is arranged in the waste gas filtering device (1) and used for clamping the filtering material, and a guide structure is arranged at the edge of the automatic straightening jig mechanism and used for assisting the filtering material in straightening;

the automatic fixture adjusting mechanism comprises a fixture tightness linkage mechanism (7), wherein the fixture tightness linkage mechanism (7) is arranged between the automatic fixture adjusting mechanism (6) and the propelling device (4) in linkage connection, when the propelling device (4) advances, the automatic fixture adjusting mechanism (6) drives the filter material to automatically loosen, and when the propelling device (4) retreats, the automatic fixture adjusting mechanism (6) drives the filter material to automatically clamp.

2. The catalytic combustion device with a rapidly replaceable filter material as set forth in claim 1, wherein:

the upper end of the first movable stop door (2) is provided with a hinge seat (201), and the hinge seat (201) is arranged on the upper surface corresponding to one opening (103) so that the first movable stop door (2) can be turned outwards;

a vertical sliding groove (202) is arranged at the upper edge of the other opening (103) provided with the first movable stop gate (2), and a second movable stop gate (3) is movably arranged in the vertical sliding groove (202) up and down.

3. The catalytic combustion device with the rapid filter medium replacement function according to claim 2, wherein the propulsion device (4) comprises a support plate (401) arranged at the edge of the opening (103) close to the second movable shutter (3), a longitudinal sliding groove (402) is formed in the surface of the support plate (401), a sliding block (403) is movably arranged in the longitudinal sliding groove (402), a push plate (404) is arranged on the upper surface of the sliding block (403), an operating handle (405) is arranged on the surface of the push plate (404), and a plurality of support legs (406) are arranged on the lower surface of the support plate (401).

4. The catalytic combustion device with a rapidly replaceable filter medium of claim 3, wherein:

the shutter linkage mechanism (5) comprises first hinged shafts (501) arranged on two side walls of the upper end of the push plate (404), second hinged shafts (502) arranged on two side walls of the upper end of the second movable shutter (3), and second connecting rods (503) are hinged between the first hinged shafts (501) and the second hinged shafts (502) on the corresponding side;

the sliding block (403) extends to the lower part of the supporting plate (401) and is provided with a longitudinal rod (504), two side walls of the longitudinal rod (504) are respectively provided with a third hinge shaft (505), the lower ends of the two side walls of the first movable stop door (2) are respectively provided with a fourth hinge shaft (506), and a first connecting rod (507) is hinged between the third hinge shaft (505) and the fourth hinge shaft (506) on the corresponding side.

5. The catalytic combustion device with rapid filter medium exchange function of claim 4, wherein the first connecting rod (507) and the first hinge shaft (501) are arc-shaped and function as yielding during the movement.

6. The catalytic combustion device with the filter material capable of being replaced rapidly as claimed in claim 5, wherein the automatic centering jig mechanism (6) comprises two rotating bases (601) disposed on the inner surface of the exhaust gas filtering device (1), the jig mechanisms (602) are symmetrically disposed in the two rotating bases (601), the jig mechanism (602) comprises a rotating cylinder (603) rotatably disposed in the rotating bases (601) for rotation, an elastic clamping plate (604) is disposed on the outer circumferential surface of the rotating cylinder (603), inclined guide plates (605) are symmetrically disposed at two ends of the elastic clamping plate (604), and the two inclined guide plates (605) are respectively inclined toward the end of the rotating cylinder (603) facing inward.

7. The catalytic combustion device with the filter material capable of being replaced rapidly as recited in claim 6, wherein the elastic clamping plate (604) comprises a fixed clamping plate (6041) fixedly connected with the circumferential outer wall of the rotating shaft cylinder (603), a telescopic rod (6042) is arranged on the surface of the fixed clamping plate (6041), the end of the telescopic rod (6042) is connected with a squeezing plate (6043), the telescopic rod (6042) is externally sleeved with a spring (6044) which enables the squeezing plate (6043) to be compressed outwards, a plurality of auxiliary clamping rods (6045) are transversely uniformly distributed on the edge of the squeezing plate (6043), and the inclined guide plate (605) is provided with a yielding groove (6046) which can be yielded for the plurality of auxiliary clamping rods (6045) near one end of the plurality of auxiliary clamping rods (6045).

8. The catalytic combustion device with the rapidly replaceable filter medium as defined in claim 6 or 7, wherein the fixture elastic linkage mechanism (7) comprises a first bevel gear (701) disposed at the end of a rotating shaft cylinder (603), a gear seat (702) disposed at the lower surface of a side support plate (401) of the rotating shaft cylinder (603), a second bevel gear (703) rotatably disposed on the gear seat (702), the first bevel gear (701) and the second bevel gear (703) disposed on the corresponding side are engaged for transmission, the rear end of the second bevel gear (703) is provided with a straight gear (704), a longitudinal rack (705) is disposed on the upper surface of the longitudinal rod (504), and the longitudinal rack (705) and the straight gear (704) are engaged for transmission.

9. The catalytic combustion device with a rapid filter medium exchange function according to any one of claims 2 to 7, wherein a waste filter screen storage box (8) is arranged below the opening (103) close to one side of the first movable shutter (2).

10. The catalytic combustion device with rapid filter medium exchange function according to any one of claims 1-7, wherein a sealing metal baffle for sealing the exhaust gas filtering device (1) is arranged below the automatic righting fixture mechanism (6).

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