CN209944367U

CN209944367U - Negative pressure sealed heat accumulating type incinerator in furnace body

Info

Publication number: CN209944367U
Application number: CN201920703832.8U
Authority: CN
Inventors: 刘全军; 唐斌; 李�瑞
Original assignee: CHANGZHOU DAHENG ENVIRONMENTAL TECHNOLOGY Co Ltd
Current assignee: CHANGZHOU DAHENG ENVIRONMENTAL TECHNOLOGY Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-01-14
Anticipated expiration: 2029-05-16

Abstract

The utility model provides a heat accumulating type incinerator with negative pressure sealing in the incinerator body, which comprises an incinerator body and a bracket arranged below the incinerator body, wherein the incinerator body is sequentially divided into a decomposition cavity, an airflow cavity and a rotation cavity from top to bottom, the rotation cavity is internally provided with a rotary valve, the rotary valve comprises a shell fixed in the rotation cavity, a rotor body rotatably arranged in the shell and a rotary shaft communicated into the rotor body, the rotor body is internally provided with a central tube, the bottom circumferential surface of the rotary shaft is provided with a plurality of air outlet pipes, the end part of the rotary shaft where the air outlet pipes are arranged is provided with an air outlet bin, the air outlet bin is arranged on the shell, the air outlet bin contains the air outlet pipes, the opening of the air outlet bin is arranged on the shell, the opening of the air outlet bin is communicated to the front end of an air inlet fan outside the incinerator body, after the air inlet fan extracts the air in, prevent the leakage of dangerous waste gas from the assembly gap.

Description

Negative pressure sealed heat accumulating type incinerator in furnace body

Technical Field

The utility model relates to a waste gas treatment technical field especially relates to a negative pressure sealed heat accumulation formula burns burning furnace in furnace body.

Background

Because the furnace body of the heat accumulating type incinerator is assembled, the furnace body has an assembly gap, the heat accumulating type incinerator is used for carrying out oxidative decomposition on the dangerous waste gas, the dangerous waste gas is easy to leak to the outside of the furnace body along the assembly gap, meanwhile, the dangerous waste gas leaks when not being treated, the physical and mental health of operators can be affected, and particularly, the phenomenon of gas leakage is serious at the contact position between a rotary valve and the furnace body in the incinerator.

SUMMERY OF THE UTILITY MODEL

Based on the technical background, the utility model provides a make sealed heat accumulation formula of negative pressure burn burning furnace in the furnace body for preventing gas leakage.

The utility model provides a technical scheme that its technical problem adopted is: a heat accumulating type incinerator with negative pressure sealing in a furnace body comprises the furnace body and a support arranged below the furnace body, wherein the furnace body is sequentially divided into a decomposition cavity, an airflow cavity and a rotating cavity which are communicated with each other from top to bottom, a rotating valve is arranged in the rotating cavity, the rotating valve comprises a shell fixed in the rotating cavity, a rotor body rotatably arranged in the shell and a rotating shaft communicated with the rotor body in a hollow shape, and a central pipe communicated with the rotating shaft is arranged in the rotor body;

the bottom circumferential surface of the rotating shaft is provided with a plurality of air outlet pipe orifices, the end part of the rotating shaft where the air outlet pipe orifices are located is provided with an air outlet bin, the air outlet bin is arranged on the shell, the air outlet bin contains the air outlet pipe orifices, the opening of the air outlet bin is arranged on the shell, the opening of the air outlet bin is communicated to the front end of an air inlet fan outside the furnace body, and after the air inlet fan extracts air in the air outlet bin, a negative pressure state is formed in the furnace body.

Further, the gas outlet bin is a square cavity hermetically arranged in the shell, and the gas outlet bin is composed of a steel plate welded in the shell and the shell.

Further, install the pivot loop on the outer wall in gas outlet bin, fixed mounting has the limiting plate on the periphery of pivot, install the card panel on the pivot loop, it has the pivot spacing groove to open in the limiting plate, the mobilizable inlay card of card panel is in the pivot spacing inslot.

Furthermore, the air outlet pipe orifices are uniformly distributed around the axis of the rotating shaft, and the air outlet pipe orifices are uniformly distributed on the circumferential surface of the rotating shaft.

Furthermore, a limiting platform is installed at the bottom of the rotor body, a rotor loop corresponding to the rotor body is installed in the shell, a rotor limiting groove corresponding to the limiting platform is formed in the rotor loop, and the limiting platform is movably inserted into the rotor limiting groove.

Furthermore, a central tube communicated with the rotating shaft is arranged in the rotor body, the central tube is arranged along the axial direction of the rotor body, a cross-shaped air inlet pipeline is arranged on the circumferential surface of the bottom of the central tube, and the air inlet pipeline is communicated with the central tube and the tube wall of the rotor body.

Furthermore, a mesh-shaped supporting plate is installed in the airflow cavity, a heat accumulator is installed on the supporting plate, and the heat accumulator corresponds to the rotor body.

Furthermore, the heat accumulator comprises a plurality of ceramic bodies and hollow fixing columns, the ceramic bodies are arranged on the supporting plate in an intermittent mode around the axis of the furnace body, the fixing columns are fixed to the center of the supporting plate, and the ceramic bodies are fixed to the fixing columns.

Furthermore, the assembly connection is realized through the mode that the disassembly cavity, the airflow cavity and the rotation cavity are sequentially pressed and held by screws after the flange surfaces are butted, an air inlet is formed in the cavity wall of the airflow cavity, the fixing column is installed in the air inlet, a yielding hole is formed in the supporting plate, and the rotation cavity is covered on the yielding hole.

The beneficial effects of the utility model are that, utilize the air intake fan outside the furnace body, the switch-on is given vent to anger the storehouse and is seted up the export on the casing, takes out the gas after the oxidation treatment in the storehouse of giving vent to anger for be the negative pressure state in rotating cavity, air current cavity and the decomposition cavity, the internal and external atmospheric pressure difference of furnace, make the internal gas of furnace when leaking, outside atmospheric pressure extrudees the gas of leaking, the relative outside of atmospheric pressure in the furnace body is the negative pressure simultaneously, prevents the leakage of internal gas in assembly gap department.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a front view of the regenerative incinerator of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of the rotary valve at B in FIG. 2;

FIG. 4 is a front view of the rotor body of FIG. 1;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;

FIG. 6 is a front view of the spindle and drive mechanism of FIG. 2, assembled;

FIG. 7 is a top view of the dial and sheave of FIG. 6 after engagement;

FIG. 8 is a top view of the elastomeric component of FIG. 6;

FIG. 9 is a front view of the spring assembly of FIG. 8;

in the figure:

decomposition cavity 110 of heat accumulating type incinerator 100 body 10

Airflow chamber 120 rotating chamber 130 support 20

Heat accumulator 30 rotary valve 40 drive mechanism 50

Support plate 121 offset hole 122 upright 568

Square outlet 131 and square inlet 132 ceramic body 310

Fixed column 320 reinforcing rod 321 shell 410

Rotor 420 stator 430 rotor body 421

Center tube 423 of spacing platform 427 of rotating shaft 422

Limiting plate 429 of air outlet pipe opening 428 of air inlet pipeline 424

Rotor loop 440 of rotating shaft limit groove 470 limit groove 480

Rotor limiting groove 441 of rotating shaft loop 460 of gas outlet bin 450

Card panel 461 with outer terminal 431 and inner terminal 432

Restrictor plate 433 dowel 434 drive shaft 510

Grooved wheel 520 positioning plate 530 drive plate 540

Drive motor 550 coupling 511 shoulder 512

Driving base 521 meshing groove 522 poking shaft 523

Fixing nut 524 support column 531 positioning base 532

Bearing 533 positioning sensor 534 teeth 541

Spring plate 561 of linkage block 551 spring assembly 560

Elastomeric base 564 of elastomeric member 562 guide post 563

Movable plate 566 abuts against post 5621 fixing plate 5622

Spring 5623 locating column 567

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

As shown in fig. 1 and 2, the utility model provides a heat accumulating type incinerator 100 convenient to maintain, include furnace body 10 and install the support 20 in furnace body 10 below, still including installing heat accumulator 30 and the rotary valve 40 at furnace body 10, rotary valve 40 sets up the below at heat accumulator 30, heat accumulating type incinerator 100 is still including installing actuating mechanism 50 on support 20, actuating mechanism 50 orders about rotary valve 40 at the internal rotation of furnace body 10, the danger waste gas is in getting into furnace body 10 through rotary valve 40, danger waste gas mixes with oxygen in rotary valve 40, get into after the heating of heat accumulator 30, get into top in furnace body 10, it is outside discharging furnace body 10 after the abundant oxidation decomposes into harmless gas in furnace body 10.

The furnace body 10 is roughly in a hollow cylinder shape, the furnace body 10 is sequentially divided into a decomposition cavity 110, an airflow cavity 120 and a rotation cavity 130 which are communicated with each other from top to bottom, the decomposition cavity 110 and the airflow cavity 120 are sealed in a connection mode that a flange face is butted and then the screws are pressed, a mesh-shaped supporting plate 121 is installed in the airflow cavity 120, a yielding hole 122 is formed in the middle of the supporting plate 121, an air inlet (not shown) is formed in the wall, far away from the decomposition cavity 120, of the airflow cavity 120, the rotation cavity 130 is covered on the air inlet, and the rotation cavity 130 is also connected to the bottom of the airflow cavity 120 in a sealing mode that the flange face is butted and then the screws are pressed. The wall of the rotating cavity 130 is provided with a square air outlet 131 and a square air inlet 132.

The bracket 20 is a hollow steel frame made of angle steel, the bracket 20 is approximately in an inverted square platform shape, the airflow cavity 120 is fixed on the large end of the bracket 20, and the rotating cavity 130 is accommodated in the bracket 20.

The heat accumulator 30 is fixedly arranged on the supporting plate 121 in the airflow cavity 120, the heat accumulator 30 comprises a plurality of ceramic bodies 310 and hollow fixing columns 320, the ceramic bodies 310 are distributed on the supporting plate 121 in a fan shape, the ceramic bodies 310 are arranged intermittently around the axis of the furnace body 10 in a circumferential shape, and it can be understood that ventilation gaps corresponding to meshes on the supporting plate 121 are reserved between the adjacent ceramic bodies 310. The fixing post 320 is fixed at the center of the ceramic body 310 on the supporting plate 121, the ceramic bodies 310 are all fixed on the fixing post 320, the reinforcing rod 321 extends downwards from the fixing post 320, and the reinforcing rod 321 penetrates through the avoiding hole 122 and then extends into the steam inlet 123 through the airflow cavity 120.

The rotary valve 40 includes a housing 410 fixed to the bottom of the rotating chamber 130, a rotor 420 rotatably installed inside the housing 410, and a stator 430 fixed inside the rotating chamber 130. The housing 410 is substantially hollow cylindrical, and the housing 410 and the furnace body 10 are suspended at the bottom of the rotating chamber 130 by a connection method of abutting flange surfaces and pressing screws.

The rotor 420 includes a rotor body 421 and a hollow rotating shaft 422 communicated to the inside of the rotor body 421, the rotor body 421 is rotatably mounted on the inner wall of the casing 410, the rotor body 421 is substantially hollow cylindrical, the inside of the rotor body 421 is divided into two cavities, one cavity is communicated with the rotating cavity 130 and the airflow cavity 120, and the other cavity is sealed towards the end of the airflow cavity 120.

The bottom of the rotor body 421 is provided with a limiting platform 427, the limiting platform 427 is fixed on the outer circumferential surface of the rotor body 421, a central tube 423 communicated with the rotating shaft 422 is installed inside the rotor body 421, the central tube 423 is distributed along the axial direction of the rotor body 421, the circumferential surface of the bottom of the central tube 423 is provided with a cross-shaped air inlet pipeline 424, and the air inlet pipeline 424 is communicated with the central tube 423 and the tube wall of the rotor body 421.

The top of pivot 422 communicates in center tube 423, and open on the bottom periphery of pivot 422 has outlet pipe mouth 428, and outlet pipe mouth 428 has a plurality ofly, and outlet pipe mouth 428 encircles the axis evenly distributed of pivot 422, and the outside fixed mounting of pivot 422 has limiting plate 429, and limiting plate 429 sets up the upper and lower both sides at outlet pipe mouth 428, has seted up the pivot spacing groove 470 who keeps away from pivot 422 in the limiting plate 429, and open the bottom of pivot 422 has spacing groove 480.

The rotor loop 440 corresponding to the rotor 420, the gas outlet bin 450 fixed below the rotor loop 440, and the rotating shaft loop 460 installed on the outer wall of the gas outlet bin 450 are fixedly installed inside the housing 410, a rotor limit groove 441 corresponding to the limit platform 427 is opened inside the rotor loop 440, the limit platform 427 is embedded in the rotor limit groove 341 in a clamping manner, the gas outlet bin 450 is a square cavity hermetically installed inside the housing 410, and preferably, the gas outlet bin 450 is composed of a steel plate welded inside the housing 410 and the housing 410 itself.

The outlet of the gas outlet bin 450 is arranged on the shell 410, the gas outlet bin 450 is arranged to surround the gas outlet pipe orifice 428, the outlet of the gas outlet bin 450 is communicated with the front end of a gas inlet fan (not shown) outside the furnace body 10, the gas inlet fan is arranged to be communicated with the square gas inlet 132, when the gas inlet fan inputs gas flow into the furnace body 10, the gas pressure in the gas outlet bin 450 is extracted through a pipeline, the gas outlet bin 450 extracts the gas in the rotating cavity 130 through the gas outlet pipe orifice 428, the rotating shaft 422 and the gas inlet pipeline 424, so that the gas pressure in the rotating cavity 130 is smaller than the external gas pressure, and after negative pressure is formed in the rotating cavity 130 relative to the outside, the gas leaked in the rotating cavity 130 is sucked back into the rotating cavity 130 under the action. The rotary shaft loop 460 is symmetrically fixed on the upper and lower sides of the air outlet bin 450, the rotary shaft loop 460 is provided with a clamping and embedding plate 461 corresponding to the rotary shaft limiting groove 470, and the clamping and embedding plate 461 is clamped and embedded in the rotary shaft limiting groove 470.

The stator 430 includes an outer terminal 431 fixed to an inner wall of the intake port, an inner terminal 432 fixed to an outer side of the reinforcing rod 321, and a choke plate 433 fixedly connecting the outer terminal 431 and the inner terminal 432. The outer terminal 431 and the inner terminal 432 are both in a bent cylindrical shape, the vertical side wall of the outer terminal 431 is fixed on the inner wall of the air inlet, the vertical side wall of the inner terminal 432 is fixed on the outer side wall of the reinforcing rod 321, the current limiting plate 433 is welded on the horizontal side walls of the outer terminal 431 and the inner terminal 432, the position of the central tube 423 relative to the current limiting plate 433 is limited by the current limiting plate 433 in a pin inserting mode, specifically, a positioning pin 434 is inserted in the central position of the current limiting plate 433, and the positioning pin 434 is inserted in the current limiting plate 433 and the central tube 423.

The driving mechanism 50 includes a transmission shaft 510 inserted into the limit groove 480, a grooved wheel 520 sleeved outside the transmission shaft 510 and far away from the end of the limit groove 480, a positioning plate 530 installed on the grooved wheel 520, a dial 540 for dialing the grooved wheel 520 to rotate, and a driving motor 550 for driving the dial 540 to rotate.

The top end of the transmission shaft 510 is fixedly inserted into the limiting groove 480, the bottom end of the transmission shaft 510 is sleeved with a coupler 511, a shaft shoulder 512 is arranged on the transmission shaft 510, the shaft shoulder 512 is lapped on a port of the coupler 511, a transmission base 521 is inserted into a port of the coupler 511, which is far away from the shaft shoulder 512, the transmission base 521 is approximately in a step shape, and the coupler 511 is fixed on a small-end step surface of the transmission base 521.

The grooved wheel 520 is fixed on the large-end face of the transmission base 521, the grooved wheel 520 is fixed on the transmission base 521 in a screw connection mode, an engagement groove 522 is formed in the side edge of the grooved wheel 520, the engagement groove 522 is annularly arranged along the side edge of the grooved wheel 520, a plurality of shifting shafts 523 are axially arranged in the engagement groove 522 along the grooved wheel 520, the shifting shafts 523 penetrate through symmetrical groove walls of the engagement groove 520, preferably, the shifting shafts 523 are countersunk screws, the head portion of each shifting shaft 423 is attached to the upper end face of the grooved wheel 520, fixing nuts 524 are inserted into the tail portions of the shifting shafts 523 in a matched mode, and the fixing nuts are attached to the lower end face of the grooved wheel 520. The dial shafts 523 are arranged with uniform gaps along the direction of the engagement groove 522, and it can be understood that the respective dial shafts 523 are provided with corresponding gaps.

Positioning plate 530 is discoid and fixes in the below of sheave 520, and the below fixedly connected with support column 531 of positioning plate 530, the tip of keeping away from positioning plate 530 on the support column 531 is provided with location base 532, and support column 531 alternates in location base 532, installs bearing 533 between location base 532 and the support column 531, and the inner circle fixed cover of bearing 533 is established on the periphery of support column 531, and the outer lane of bearing 533 is fixed in location base 532. A positioning sensor 534 is installed on the outer side of the positioning base 530, preferably, the positioning sensor 534 is an inductive sensor with model IFS286, a detection contact of the positioning sensor 534 corresponds to the positioning plate 530, and the positioning sensor 534 determines the relative rotation angle of the positioning plate 530 and the sheave 520 by detecting the corresponding medium on the positioning plate 530.

The dial 540 is approximately disc-shaped, a plurality of teeth 541 corresponding to gaps between the dial shafts 523 are engraved on the edge of the dial 540, when the dial 540 is engaged with the grooved wheel 520, at least three teeth 541 are always inserted into the gaps between the dial shafts 523, an output shaft of the driving motor 550 is inserted into the dial 540, a linkage block 551 is fixedly arranged on the circumferential surface of the output shaft of the driving motor 550, and the linkage block 551 is inserted at the middle position of the dial 540. Preferably, the linkage block 551 is a square block fixed on the rotation shaft of the driving motor 550, and when the driving motor 550 is inserted into the dial 540, the linkage block 551 is engaged with the dial 540, so that the dial 540 rotates along with the rotation shaft. In the process of rotation of the dial plate 540, the teeth 541 poke the poking shaft 523 on the grooved wheel 520, so that the grooved wheel 520 rotates synchronously, and because the teeth 541 are always inserted into the gaps of the poking shaft 523 in at least three positions, the teeth 541 can poke the poking shaft 523 to rotate when the poking shaft 523 is maintained after being detached independently.

An elastic assembly 560 is installed between the bottom of the positioning base 530 and the support 20, and the elastic assembly 560 includes an elastic plate 561 fixed below the positioning base 530, an elastic member 562 connected below the elastic plate 561, a guide post 563 fixed on the elastic plate 561, and an elastic base 564 capable of sliding relative to the elastic plate 561.

The movable plate 566 is detachably mounted on the elastic plate 561, the movable plate 566 is substantially rectangular, the elastic member 562 includes an abutting column 5621 fixed on the movable plate 566, a fixing plate 5622 fixed on an end portion of the abutting column 5621 far away from the movable plate 566, and a spring 5623 abutting on the fixing plate 5622, an end portion of the abutting column 5621 is threadedly mounted in the movable plate 566, the fixing plate 5622 is welded on the abutting column 5621, and the spring 5322 is lapped on the fixing plate 5622. Guide column 563 is the central point that hollow cylinder fixed at elastic plate 561, and reference column 567 and a plurality of stand 568 are installed to elastic base 564 to elastic plate 561 direction, and the length of stand 568 is greater than the length of guide column 563, and reference column 567 corresponds with guide column 563, and the cooperation of reference column 567 alternates in the inside of guide column 563, and stand 568 is around guide column 563 evenly distributed, and stand 568 all can alternate to elastic plate 561 in the relative slip ground.

The spring 5623 generates a flexible supporting action on the movable plate 566, the supporting action is transmitted to the positioning base 532 through the elastic plate 561, the positioning base 532 controls the sheave 520 to move up and down through the supporting column 531, the sheave 520 drives the rotor body 421 to move axially by means of the transmission base 521 and the transmission shaft 510, when the rotor body 421 rotates relative to the stator 430, due to friction force between the rotor body 421 and the stator 430, the rotor 420 will move in a direction away from the stator 430 during rotation, that is, the rotor 420 will keep away from the movement trend of the stator 430, and under the supporting action of the spring 5623, the rotor 420 and the stator 430 always keep a relative rotation and supporting state.

When the regenerative incinerator 100 is in use, hazardous waste gas enters the rotary cavity 130 through the square gas inlet 132, the hazardous waste gas enters the gas flow cavity 120 through the rotor body 421 in the rotary valve 420 and the support plate 121 above the rotary valve 420, the hazardous waste gas is in a high-temperature state after exchanging heat with the ceramic body 310 in the heat accumulator 30, the hazardous waste gas is oxidized and decomposed into harmless water and carbon dioxide in the decomposition cavity 110, the decomposed water and carbon dioxide sequentially enter the rotor body 421 in the rotary valve 420 through the heat accumulator 30 and the support plate 121, the gas is divided into two parts after passing through the central tube 423 and the rotary shaft 422 in the rotor body 421, one part is discharged out of the furnace body 10 through the square gas outlet 131, and the other part enters the gas outlet 450 and is discharged out of the furnace body 10 through the outlet of the gas outlet 450.

In the use of the regenerative thermal oxidizer 100, the rotor 420 of the rotary valve 40 is rotated in the housing 410 relative to the stator 430 by the driving of the driving motor 550 of the driving mechanism 50, so that the gas inlet and outlet positions are changed continuously, the temperature of each ceramic body 310 in the heat storage body 30 tends to be the same, and the ceramic bodies 310 in the individual regions are prevented from being excessively high in temperature. During the rotation of the rotor body 421, sliding friction is generated between the rotor body 421 and the restrictor plate 433 of the stator 430, and the sliding friction causes the rotor body 421 to have a tendency to move away from the restrictor plate 433, which is counteracted by the action of the elastic member 562 in the spring assembly 560, that is, the rotor body 421 can always adhere to the restrictor plate 433 during the rotation.

In the driving mechanism 50, the teeth 541 on the driving plate 540 are adopted to stir the stirring shaft 523 in the grooved wheel 520 to drive the grooved wheel 520 to rotate, in the process of long-time use, the stirring shaft 523 collides with the grooved wheel 520 for too many times, and then the stirring shaft 523 needs to be detached for maintenance, at least 3 stirring shafts are inserted in the grooves between the teeth 541 after the stirring shaft 523 is meshed with the teeth 541, and the use of the grooved wheel 520 is not influenced after 1 stirring shaft is detached alone.

The outlet of the gas outlet bin 450 is communicated to the front end of the gas inlet fan outside the furnace body 101, and the gas inlet fan extracts the gas treated in the gas outlet bin 450, so that the three cavities in the furnace body 10 are all in a negative pressure state, and the gas cannot be leaked out from the gap between the rotor 420 and the stator 430 in the negative pressure state, thereby achieving the purpose of negative pressure sealing of the three cavities in the furnace body 10.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a sealed regenerative incinerator of negative pressure in furnace body which characterized in that: the rotary valve comprises a shell fixed in the rotating cavity, a rotor body rotatably arranged in the shell and a rotating shaft communicated with the rotor body in a hollow manner, wherein the rotor body is internally provided with a central pipe communicated with the rotating shaft;

2. A regenerative incinerator of negative pressure sealed in a furnace body according to claim 1 wherein: the gas outlet bin is a square cavity hermetically arranged in the shell, and consists of a steel plate welded in the shell and the shell.

3. A regenerative incinerator of negative pressure sealed in a furnace body according to claim 1 wherein: the outer wall of the gas outlet bin is provided with a rotating shaft loop, a limiting plate is fixedly mounted on the circumferential surface of the rotating shaft, a clamping plate is mounted on the rotating shaft loop, a rotating shaft limiting groove is formed in the limiting plate, and the clamping plate is movably clamped in the rotating shaft limiting groove.

4. A regenerative incinerator of negative pressure sealed in a furnace body according to claim 1 wherein: the air outlet pipe orifices are uniformly distributed around the axis of the rotating shaft and are uniformly distributed on the circumferential surface of the rotating shaft.

5. A regenerative incinerator of negative pressure sealed in a furnace body according to claim 1 wherein: the rotor comprises a rotor body and is characterized in that a limiting platform is installed at the bottom of the rotor body, a rotor loop corresponding to the rotor body is installed in the shell, a rotor limiting groove corresponding to the limiting platform is formed in the rotor loop, and the limiting platform is movably inserted in the rotor limiting groove.

6. A regenerative incinerator of negative pressure sealed in a furnace body according to claim 1 wherein: the rotor comprises a rotor body and is characterized in that a central tube communicated with the rotating shaft is arranged in the rotor body, the central tube is arranged along the axial direction of the rotor body, a cross-shaped air inlet pipeline is arranged on the circumferential surface of the bottom of the central tube, and the air inlet pipeline is communicated with the central tube and the tube wall of the rotor body.

7. A regenerative incinerator of negative pressure sealed in a furnace body according to claim 1 wherein: the air flow cavity is internally provided with a mesh-shaped supporting plate, the supporting plate is provided with a heat accumulator, and the heat accumulator corresponds to the rotor body.

8. A regenerative incinerator of negative pressure sealed in furnace body as claimed in claim 7 wherein: the heat accumulator comprises a plurality of ceramic bodies and hollow fixing columns, the ceramic bodies are arranged on the supporting plate in an intermittent mode around the axis of the furnace body, the fixing columns are fixed to the center of the supporting plate, and the ceramic bodies are fixed to the fixing columns.

9. A regenerative incinerator of negative pressure sealed in a furnace body according to claim 8 wherein: the disassembly cavity, the airflow cavity and the rotation cavity are sequentially connected in a flange face butt joint mode through screws to realize assembly connection, an air inlet is formed in the cavity wall of the airflow cavity, the fixing column is installed in the air inlet, a yielding hole is formed in the supporting plate, and the rotation cavity covers the yielding hole.