CN212481301U

CN212481301U - Pyrolysis furnace

Info

Publication number: CN212481301U
Application number: CN202020471783.2U
Authority: CN
Inventors: 陈建勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2021-02-05
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses a pyrolysis furnace, including the top cover that from top to bottom sets up, pyrolysis chamber and ash tray, be equipped with the pan feeding mouth on the lateral wall in pyrolysis chamber, the pan feeding mouth is connected with the feeding device of sealed setting, and the pyrolysis intracavity is equipped with the cloth board of pushing flat solid waste, and the bottom of pyrolysis furnace is equipped with the grate, and the ash tray is located the grate below, and the below of grate is equipped with the pivot and drives the grate rotation, is equipped with built on stilts layer on the inner wall in pyrolysis chamber, and the ash tray is equipped with ventilation structure, and the bottom of ash tray has the ash leakage mouth, is equipped with smoke exhaust structure in the. The utility model discloses simple structure, convenient to use works as in the pyrolysis intracavity, and the solid useless of pan feeding mouth below is piled up when distributing plate height, will push away the flat from the solid useless of pan feeding mouth entering through distributing plate, fills up in the space that produces, makes it level and evenly pile up in the pyrolysis oven, can not produce a large amount of spaces, and the pyrolysis chamber of equal size can more solid useless of single treatment.

Description

Pyrolysis furnace

Technical Field

The utility model relates to a pyrolysis technology field, concretely relates to a pyrolysis oven for waste pyrolysis.

Background

The annual production amount of Chinese solid waste is large, and the solid waste can permeate into soil after weathering in the soil to destroy the corrosion and decomposition capacity of the soil; the solid waste placed in the open for a long time can volatilize a large amount of waste gas and dust, serious pollution is caused to the atmosphere, and the problem of solid waste pollution is paid attention to the society.

At present, the solid waste is mainly treated by burning, burying, biological treatment and the like. The disadvantages of the incineration process are on the one hand the high cost and on the other hand the secondary pollution caused by the fly ash (containing harmful components of dioxin) and the foul smell which are generated therewith. China is in a stage of rapidly improving the urbanization rate, urban land is already a scarce resource, large-area land is needed for landfill, and the problem of secondary pollution after landfill is very serious.

The pyrolysis technology is a solid useless processing technology of novel environmental protection, and among the prior art, the feed inlet of pyrolysis oven is in one point of pyrolysis oven, and consequently solid useless in the pyrolysis oven can begin to produce in the below of feed inlet and pile up, pile up to discharge gate department when the solid useless of this department and stop up the discharge gate after, still leave very big space in other regions, caused the waste in pyrolysis chamber space in the pyrolysis oven, reduced the single treatment capacity of pyrolysis oven to solid useless.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a pyrolysis furnace for waste pyrolysis.

In order to realize the technical effect, the utility model discloses a following scheme:

a pyrolysis furnace comprises a top cover, a pyrolysis cavity and an ash tray which are arranged from top to bottom, wherein a feeding hole is formed in the side wall of the pyrolysis cavity, the feeding hole is located at the upper end of the pyrolysis cavity, the feeding hole is connected with a feeding device which is arranged in a sealed mode, a distributing plate for pushing solid waste is arranged in the pyrolysis cavity, the distributing plate is located on the inner side of the upper wall of the pyrolysis cavity, the height of the distributing plate corresponds to that of the feeding hole, a rotating shaft is arranged at the upper end of the distributing plate, a bearing seat is arranged in the middle of the upper wall of the pyrolysis cavity, the rotating shaft is matched with the bearing seat, the distributing plate is mounted on the upper wall of the pyrolysis cavity through the bearing seat and driven to rotate through the rotating mechanism, the bottom end of the pyrolysis cavity is communicated with the ash tray, a fire grate is arranged at the bottom end of the pyrolysis furnace, the ash tray is located below, support piece's one end and pivot outer wall fixed connection, the other end is connected with the lower fixed surface of outer grate segment, is equipped with the built on stilts layer on the inner wall in pyrolysis chamber, and the built on stilts layer is located the lower part in pyrolysis chamber and around the setting of pyrolysis chamber, and the ash tray is equipped with ventilation structure, and the bottom of ash tray has the ash leakage mouth, is equipped with smoke exhaust structure in the top cover.

The optimized technical scheme is that the fire grate comprises an outer fire grate sheet and an inner fire grate sheet, the horizontal projection of the inner fire grate sheet is circular, the outer edge of the outer fire grate sheet extends to the lower part of the inner wall of a combustion chamber of the pyrolysis furnace, the height of the upper surface of the outer fire grate sheet is gradually reduced from the outer edge of the outer fire grate sheet to the center of the outer fire grate sheet, the center of the outer fire grate sheet is provided with a through hole penetrating through the outer fire grate sheet, the inner fire grate sheet is arranged above the through hole, the horizontal projection of the inner fire grate sheet is circular, the size of the inner fire grate sheet is larger than that of the through hole and can completely cover the through hole, the height of the upper surface of the inner fire grate sheet is gradually increased from the outer edge of the inner fire grate sheet to the center of the inner fire grate sheet, the inner fire grate sheet and the outer fire grate sheet are supported by a plurality of supporting blocks, the lower ends of the supporting blocks are fixedly connected with the outer fire grate sheet and arranged around the through holes at intervals, the upper ends of the supporting, a through hole is formed between the two supporting blocks, first leak holes which are uniformly distributed are formed in the outer grate segment, second leak holes which are uniformly distributed are formed in the inner grate segment, a rotating shaft is arranged below the center of the outer grate segment, and the rotating shaft supports the outer grate segment through a plurality of supporting pieces.

According to the preferred technical scheme, the smoke exhaust structure comprises a first smoke exhaust cavity, the first smoke exhaust cavity is located right above a combustion chamber of the pyrolysis furnace, the first smoke exhaust cavity comprises a bottom plate and a first smoke exhaust cavity cover located above the bottom plate, the bottom plate is circular, the height of the first smoke exhaust cavity cover is gradually reduced from the center to the periphery, the horizontal section of the first smoke exhaust cavity cover is circular, and the bottom end of the first smoke exhaust cavity cover is hermetically connected around the outer side edge of the bottom plate; a second smoke exhaust cavity is arranged above the first smoke exhaust cavity and comprises a second smoke exhaust cavity cover, the height of the second smoke exhaust cavity cover is gradually reduced from the center to the periphery, the horizontal section of the second smoke exhaust cavity cover is circular, the bottom end of the second smoke exhaust cavity cover is hermetically connected around the joint of the first smoke exhaust cavity cover and the bottom plate, and a sealed second smoke exhaust cavity is formed between the first smoke exhaust cavity cover and the second smoke exhaust cavity cover; the center department of second smoke exhaust chamber cover is equipped with the exhaust port, and the exhaust port has the smoking pump through the union coupling of discharging fume, and first smoke exhaust chamber is through a plurality of connecting pipes and pyrolysis oven combustion chamber intercommunication, and evenly distributed is gone up to the upper end of a plurality of connecting pipes on the bottom plate, and the lower extreme of a plurality of connecting pipes is in the upper end evenly distributed of pyrolysis oven combustion chamber.

According to the preferred technical scheme, the first smoke exhaust cavity cover and the second smoke exhaust cavity cover are both spherical in shape, and the arc at the joint of the lower end of the first smoke exhaust cavity cover and the outer side edge of the bottom plate is in transition arrangement.

According to the preferable technical scheme, the overhead layer comprises a plurality of overhead blocks, the overhead blocks are located on the inner wall of the combustion chamber of the pyrolysis furnace, the overhead blocks are arranged towards the center of the combustion chamber of the pyrolysis furnace in a protruding mode, the overhead blocks are arranged around the inner wall of the combustion chamber of the pyrolysis furnace at intervals, and an air channel in the vertical direction is formed between every two adjacent overhead blocks.

The preferred technical scheme, ventilation structure includes that the air cooling that sets up around pyrolysis chamber cladding presss from both sides the cover on the outer wall in pyrolysis chamber, the air cooling presss from both sides the cover and has the space air bed of formation between the outer wall in pyrolysis chamber, the upper end and the pyrolysis chamber outer wall that the air cooling pressed from both sides the cover are sealed, the lower extreme that the air cooling pressed from both sides the cover is sealed with the outer wall in pyrolysis chamber, whole air in situ intercommunication, the upper end that the air cooling pressed from both sides the cover is equipped with air inlet, the lower extreme is equipped with.

According to the technical scheme, the bottom of the ash tray is provided with the ash plate, the rotating sleeve is sleeved on the rotating shaft, the lower end of the rotating sleeve penetrates through the bottom of the ash tray and is connected with the ash plate motor, the rotating sleeve limits the ash plate to move up and down through the limiting structure, one end of the ash plate is fixedly connected with the rotating sleeve, the ash plate is driven to rotate through the ash plate motor, the ash plate is arranged in a side-standing mode, and the lower side of the ash plate is attached to the bottom plate of the ash tray.

The preferred technical scheme, the shape of cloth plate is platelike and the side sets up, the one end and the rotation axis fixed connection of cloth plate, the other end of cloth plate is close to the inner wall setting in pyrolysis chamber, cloth plate includes connecting portion and cloth portion, connecting portion are located the top, connecting portion are the pitch arc with the connecting wire of cloth portion, the pitch arc begins to extend to cloth plate's downside towards the direction downwarping of rotation axis from the one end of keeping away from the rotation axis on the cloth plate, cloth portion has the arc surface, the direction of rotation of the hunch-up direction orientation cloth plate of arc surface, cloth plate's quantity is two, two cloth plates are centrosymmetric setting along the rotation axis.

The optimized technical scheme is that a mounting hole penetrating through the upper wall of the pyrolysis cavity is formed in the middle of the upper wall of the pyrolysis cavity, a bearing seat is located in the mounting hole, the bearing seat comprises an outer sleeve, the outer sleeve is hermetically and detachably connected with the upper wall of the pyrolysis cavity, an upper pressing plate is arranged above the outer sleeve and tightly pressed on the upper end face of the outer sleeve and fixedly connected with the upper end face through a bolt, an inner sleeve is fixedly arranged in the outer sleeve, the upper end face of the inner sleeve props against the upper pressing plate and is fixedly connected with the upper pressing plate through a bolt, a lower pressing plate is sleeved on the outer wall of the lower end of the inner sleeve in a surrounding mode, a lower pressing plate connecting groove matched with the lower pressing plate is arranged on the inner wall of the outer sleeve in a surrounding mode, a copper sleeve is fixedly arranged in the inner sleeve, an inner convex edge is arranged on the lower end of the inner wall of the inner sleeve in a surrounding mode, the rotation axis slides in the copper sheathing and rotates, the rotation axis includes main shaft and connecting axle, the main shaft is located the copper sheathing, the lower extreme of main shaft stretches out the copper sheathing and is equipped with the evagination edge that encircles the main shaft setting, the upper surface on evagination edge and the lower terminal surface butt of copper sheathing, the up end of main shaft flushes the setting with the up end of copper sheathing, the connecting axle is located the upper end of main shaft and sets up with main shaft integrated into one piece, the connecting axle sets up with the main shaft is coaxial, the pivot hole that supplies the connecting axle to wear out has on the top board, can dismantle the cover on the connecting axle and press the pipe, the outer wall of pressing the pipe has the space between the inner wall in pivot hole, the up end of main shaft and the up end of copper sheathing are pushed down simultaneously to the lower terminal surface of pressing.

According to the preferred technical scheme, the side wall of the top cover comprises an upper side wall and a lower side wall which are detachably connected, and the upper side wall is positioned above the lower side wall.

Compared with the prior art, beneficial effect does:

the utility model discloses simple structure, convenient to use works as in the pyrolysis intracavity, and the solid useless of pan feeding mouth below is piled up when distributing plate height, will push away the flat from the solid useless of pan feeding mouth entering through distributing plate, fills up in the space that produces, makes it level and evenly pile up in the pyrolysis oven, can not produce a large amount of spaces, and the pyrolysis chamber of equal size can more solid useless of single treatment.

Drawings

FIG. 1 is a schematic sectional view of the structure of the present invention;

FIG. 2 is a first partially enlarged schematic view of FIG. 1;

fig. 3 is a second partially enlarged view of fig. 1.

Reference numerals: 1. a sidewall of the pyrolysis chamber; 101. a pyrolysis chamber; 2. a top cover; 3. an ash tray; 4. a delivery pipe; 5. a spiral auger; 6. a rotating electric machine; 7. a speed reducer; 8. an air cooling jacket; 801. an air layer; 9. A distributing plate; 10. a bearing seat; 11. a motor; 12. a second smoke evacuation chamber cover; 13. a smoke outlet; 14. a first smoke evacuation chamber cover; 15. an overhead layer; 16. a grate; 1601. an outer grate segment; 1602. an inner grate segment; 17. an ash tray air pipe; 18. a gray board; 19. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The utility model provides a pyrolysis furnace, includes top cover 2, pyrolysis chamber 101 and ash tray 3, and top cover 2, pyrolysis chamber 101 and ash tray 3 set up from top to bottom, and top cover 2 is located the upper end in pyrolysis chamber 101, and ash tray 3 is located the lower extreme in pyrolysis chamber 101.

Be equipped with the pan feeding mouth on the lateral wall 1 in pyrolysis chamber, the pan feeding mouth is located the upper end in pyrolysis chamber 101, the pan feeding mouth is connected with the feeding device of sealed setting, carry solid waste to pyrolysis chamber 101 through feeding device, in this embodiment, feeding device includes conveyer pipe 4, conveyer pipe 4 inside cavity, conveyer pipe 4 level sets up, conveyer pipe 4's one end and pan feeding mouth are connected, and conveyer pipe 4 passes through pan feeding mouth and pyrolysis chamber 101 in the intercommunication, conveyer pipe 4's the other end is equipped with the baffle, baffle and conveyer pipe 4 sealing connection, the baffle can seal conveyer pipe 4's the other end completely promptly, prevent that the other end from conveyer pipe 4 from spilling conveyer pipe 4 useless admittedly, conveyer pipe 4's upper end is equipped with the dog-house, the dog-house is close.

Be equipped with spiral auger 5 in the conveyer pipe 4, spiral auger 5 matches the setting with 4 inner walls of conveyer pipe to spiral auger 5 sets up along conveyer pipe 4. The spiral auger 5 is a spiral sheet, and solid waste thrown from the feed inlet is conveyed into the pyrolysis cavity 101 by the spiral conveying principle.

The dead eye has on the baffle, is equipped with the bearing in the dead eye, and the one end that is close to the baffle on the spiral auger 5 is equipped with the axis of rotation, axis of rotation and bearing phase-match, and outside the conveyer pipe 4 was stretched out through the bearing in the axis of rotation, the outside of baffle was equipped with rotating electrical machines 6, and the axis of rotation passes through rotating electrical machines 6 and drives rotatoryly.

The preferred technical scheme, rotating electrical machines 6 pass through reduction gear 7 and connect the axis of rotation, and the rotating electrical machines 6 rotational speed among the prior art is too fast, and difficult control when carrying solid useless consequently reduces the rotational speed of rotating electrical machines 6 output through reduction gear 7.

A support rod for supporting the conveying pipe 4 is arranged below the conveying pipe 4.

Be equipped with leveling device in the pyrolysis chamber 101, through leveling the device with carry into the solid waste trowelling of pyrolysis chamber 101, make it evenly pile up in pyrolysis chamber 101. Solid waste in the pyrolysis oven can begin to produce in the below of pan feeding mouth generally and pile up, pile up to the discharge gate department when this solid useless and plug up the discharge gate after, still leave very big space in other regions in pyrolysis chamber 101, the waste in pyrolysis chamber 101 space has been caused, will follow the solid useless floating that the pan feeding mouth got into through leveling device, fill up in the space that produces, make it level and smooth and evenly pile up in the pyrolysis oven, can not produce a large amount of spaces, pyrolysis chamber 101 of equal size can the more solid useless of single treatment.

Leveling device includes cloth plate 9, and cloth plate 9 is located the upper wall of pyrolysis chamber 101 inboard, and cloth plate 9's height is corresponding with the height of pan feeding mouth, and cloth plate 9 is located the middle part position of pyrolysis chamber 101 upper wall, and the upper end of cloth plate 9 is equipped with the rotation axis, and the middle part position of pyrolysis chamber 101 upper wall is equipped with bearing frame 10, and the rotation axis matches with bearing frame 10, installs the upper wall at pyrolysis chamber 101 and drives the rotation through rotary mechanism through bearing frame 10. Because the pan feeding mouth is located the one side of pyrolysis chamber 101, consequently carry the solid useless meeting that advances in pyrolysis chamber 101 through conveyer pipe 4 and pile up in the below formation of pan feeding mouth, make the solid useless inhomogeneous of piling up in pyrolysis chamber 101, reduce pyrolysis efficiency, among this technical scheme, when piling up the height to distributing plate 9 admittedly useless, will admittedly useless stir all around through rotatory distributing plate 9, make it evenly pile up in pyrolysis chamber 101.

Cloth plate 9's shape is platelike and the side sets up, cloth plate 9's one end and rotation axis fixed connection, cloth plate 9's the other end is close to the inner wall setting of pyrolysis chamber 101, in order to can more smooth floating solid useless, cloth plate 9 includes connecting portion and cloth portion, connecting portion are located the top, connecting portion are the pitch arc with the connecting wire of cloth portion, the pitch arc begins to extend to cloth plate 9's downside towards the direction downwarping of rotation axis from the one end of keeping away from the rotation axis on cloth plate 9. The distributing portion has an arc surface, and the arching direction of the arc surface is towards the rotation direction of the distributing plate 9, that is, the lower end of the distributing portion is bent back to the rotation direction of the distributing plate 9 to form the arc surface. Preferably, the number of the distribution plates 9 is two, and the two distribution plates 9 are arranged in central symmetry along the rotating shaft.

The upper wall middle part of pyrolysis chamber 101 has the mounting hole, bearing frame 10 is installed in the mounting hole, mounting hole intercommunication pyrolysis chamber 101 and top cover 2, namely, the lower extreme of bearing frame 10 is located pyrolysis chamber 101, the upper end of bearing frame 10 is located top cover 2, bearing frame 10 and mounting hole sealing connection, bearing frame 10 includes the overcoat, the overcoat is connected with pyrolysis chamber 101's upper wall sealing connection and can dismantle with pyrolysis chamber 101's upper wall, the top of overcoat is equipped with the top board, the top board passes through the bolt and is connected with the upper end of overcoat, the lower surface of top board compresses tightly on the up end of overcoat, the bolt passes top board and the upper end face of overcoat from the top down and locks the top board on the overcoat.

The inner sleeve is fixedly arranged in the outer sleeve, the lower end of the inner sleeve is provided with a lower pressing plate, the lower pressing plate is arranged on the outer wall of the inner sleeve in a surrounding mode, a lower pressing plate connecting groove is formed in the inner wall of the outer sleeve and matched with the lower pressing plate, one end, far away from the outer wall of the inner sleeve, of the lower pressing plate is located in the lower pressing plate connecting groove, the upper end of the inner sleeve is fixedly connected with the lower surface of the upper pressing plate through a bolt, the lower surface of the upper pressing plate is tightly pressed on the upper end face of the inner sleeve, and the bolt penetrates through the upper pressing plate and the upper end. Through the technical scheme, after the lower pressing plate and the upper end of the inner sleeve are locked through the bolts, the upper surface of the lower pressing plate is tightly attached to the side wall of the upper part in the connecting groove of the lower pressing plate, and the inner sleeve can be fixedly installed inside the outer sleeve.

The copper sleeve is fixedly arranged in the inner sleeve, the copper sleeve is matched with the inner wall of the inner sleeve, the lower end of the inner sleeve is provided with an inner convex edge, the inner convex edge is positioned on the inner wall of the inner sleeve and arranged around the inner sleeve, the lower end of the copper sleeve is supported against the upper surface of the inner convex edge, the lower surface of the upper pressure plate tightly presses the upper end surface of the copper sleeve, and the copper sleeve is clamped through the combined action of the upper pressure plate and the inner convex edge.

The rotation axis is located the copper sheathing, and the rotation axis sets up with copper sheathing inner wall matching, and the rotation axis slides in being located the copper sheathing and rotates, and the rotation axis includes main shaft and connecting axle, and the main shaft is located the copper sheathing, and the lower extreme of main shaft stretches out the copper sheathing lower extreme and is equipped with the evagination edge, and the evagination edge is located the outer wall of main shaft and encircles the main shaft setting, and the upper surface butt on the lower terminal surface of copper sheathing on the evagination edge. The up end of main shaft flushes the setting with the up end of copper sheathing, the connecting axle is located the upper end of main shaft, the connecting axle sets up with the main shaft is coaxial, the lower terminal surface of connecting axle is connected with the up end integrated into one piece of main shaft, the last rotation axis hole that supplies the connecting axle to wear out that has of top board, fixed cover is equipped with on the connecting axle and presses the pipe, press the pipe to dismantle with the connecting axle and be connected, the space has between the outer wall of pressing the pipe and the inner wall in rotation axis hole, the up end of main shaft and the up end of copper sheathing are pushed. Through the technical means, the lower surface of the pressing pipe fixed on the connecting shaft presses the upper end surface of the copper sleeve, the upper surface of the convex edge props the lower end surface of the copper sleeve, and the pressing pipe and the convex edge are fixed on the rotating shaft, so that the rotating shaft can be limited in the rotation of the copper sleeve through the limiting effect of the pressing pipe and the convex edge, the rotating shaft cannot move up and down, and the lower end of the main shaft is fixedly connected with the distributing plate 9.

The upper end of the connecting shaft is connected with a gear, the lower surface of the gear presses the upper end face of the pressing pipe, the lower end face of the pressing pipe is located on the upper end face of the main shaft, the upper end face of the pressing pipe abuts against the lower surface of the gear, and after the gear is locked, the pressing pipe is clamped tightly through the combined action of the gear and the upper end face of the main shaft, so that the pressing pipe is fixed on the connecting shaft.

The overcoat includes overcoat and lower overcoat, goes up the overcoat and is located the outside and the inboard of the upper wall of pyrolysis chamber 101 respectively with lower overcoat, goes up the lower terminal surface of overcoat and the upper wall surface of pyrolysis chamber 101 and hugs closely and can dismantle the connection, and the up end of overcoat is hugged closely and can dismantle the connection with the upper wall internal surface of pyrolysis chamber 101 down, and the up end of last overcoat is fixed, goes up the overcoat, and the upper wall and the lower overcoat of pyrolysis chamber 101 are fixed through bolted connection. In this embodiment, the bolt of utilizing fixed top board and last overcoat is fixed top board from top to bottom simultaneously, go up the overcoat, pyrolysis chamber 101's upper wall and lower overcoat, namely, same bolt passes the top board from top to bottom, go up the overcoat, pyrolysis chamber 101's upper wall then the lower extreme of bolt inserts in the overcoat down, with the top board, go up the overcoat, pyrolysis chamber 101's upper wall and overcoat fixed connection down together, through this technical means, through a bolt, both connected and fixed top board and last overcoat, still fix last overcoat and overcoat on pyrolysis chamber 101's upper wall, the use of bolt has been reduced, installation and dismantlement speed have been accelerated.

Furthermore, when the two areas on the inner side and the outer side of the upper wall of the pyrolysis cavity 101 need to be completely isolated and sealed, asbestos is filled in a gap between the pressure pipe and the rotating shaft hole, and the sealing effect can be further achieved.

Be equipped with the shielding piece that matches with the top board on the upper surface of top board for shelter from the bolt hole, avoid dust steam etc. to get into bolt hole corrosion bolt, be difficult to dismantle after the bolt rusts.

The outer wall of the inner sleeve is not connected with the inner wall of the outer sleeve in front, and a gap is formed between the outer wall of the inner sleeve and the inner wall of the outer sleeve, so that an air layer 801 is formed to play a role in heat insulation.

The inner wall of the copper bush is provided with an oil groove around the copper bush, oil storage can be carried out, when lubricating oil is added between the inner walls of the rotating shaft and the copper bush, the lubricating oil permeates downwards along the gap between the rotating shaft and the inner wall of the copper bush, the lubricating oil is fully distributed between the rotating shaft and the inner wall of the copper bush and is stored in the oil groove, and the lubricating time is prolonged.

The center of the gear is provided with a connecting hole, the upper end of the connecting shaft is inserted into the connecting hole, the upper surface of the gear is provided with a pressing sheet, the size of the pressing sheet is larger than that of the connecting hole, the pressing sheet is locked and fixed with the connecting shaft through a bolt, and the gear is locked on the connecting shaft.

The rotating mechanism comprises a motor 11, the motor 11 is positioned outside the top cover 2, a chain through hole is formed in the top cover 2, a gear of the motor 11 is arranged on an output shaft of the motor 11, and the gear of the motor 11 is connected with the gear through a chain to drive the rotating shaft to rotate.

The bottom of pyrolysis chamber 101 communicates with ash tray 3, the bottom of pyrolysis furnace is equipped with grate 16, ash tray 3 is located grate 16 below, when carrying out the pyrolysis to solid useless, spread the burning source on grate 16 earlier, the firewood of burning etc. promptly, then spread all over solid useless again, ignite solid useless through the firewood, ash that forms after the solid useless burning leaks down to ash tray 3, usually in the burning process of solid useless, grate 16 can rotate always, make the pyrolysis more abundant, consequently, be equipped with pivot 19 below grate 16 and drive grate 16 and rotate, be connected with motor 11 after the bottom of ash tray 3 is run through to the lower extreme of pivot 19, rotate between pivot 19 and the ash tray 3 and be connected.

The grate 16 comprises an outer grate sheet 1601 and an inner grate sheet 1602, the horizontal projection of the outer grate sheet 1601 is circular, the height of the upper surface of the outer grate sheet 1601 gradually decreases from the outer edge of the outer grate sheet 1601 to the center of the outer grate sheet 1601, that is, the center of the upper surface of the outer grate sheet 1601 is downward concave, the outer grate sheet 1601 has an inclined surface which is downward inclined from the outer edge of the outer grate sheet 1601 and extends to the center of the outer grate sheet, a through hole which penetrates through the outer grate sheet 1601 is arranged at the center of the outer grate sheet 1601, and ashes accumulated on the outer grate sheet 1601 after solid waste combustion slide to the center along the inclined surface of the outer grate sheet 1601 and then leak down from the through hole to the ash tray 3 below the grate 16.

In some existing structures of the grate 16, a certain gap is formed between the outer edge of the grate 16 and the inner wall of the pyrolysis cavity 101, so that friction interference between the grate 16 and the inner wall of the pyrolysis cavity 101 in the rotating process is avoided, and the rotation of the grate 16 is influenced. Therefore, the utility model provides an edge of outer grate segment 1601 extends to the below of the inner wall of pyrolysis chamber 101, and the diameter of outer grate segment 1601 is greater than the diameter of combustion chamber inner wall promptly for solid useless homoenergetic in the combustion chamber is piled up on outer grate segment 1601 completely, and can not leak down to in the ash tray 3 from the gap between the inner wall of outer grate segment 1601 and pyrolysis chamber 101. And, there is the clearance between the upper end of the outer edge of outer grate 16 and the inner wall of pyrolysis chamber 101, avoids producing the friction interference.

Evenly distributed has a plurality of first small openings that run through outer furnace row piece 1601 and set up on outer furnace row piece 1601, and first small opening is perpendicular outer furnace row piece 1601 sets up, and the ashes of the solid useless burning in the pyrolysis chamber 101 leak down to in the ash tray 3 from first small opening.

Be equipped with interior grate piece 1602 in the top of the through-hole at outer grate piece 1601 center, the horizontal projection of interior grate piece 1602 is circularly, the size of interior grate piece 1602 is greater than the size of through-hole, interior grate piece 1602 can cover the through-hole completely, the height of the upper surface of interior grate piece 1602 is increased gradually along the radial center of orientation of interior grate piece 1602 by the outer border of interior grate piece 1602, namely, the height that the central height of interior grate piece 1602 is higher than the outer border of interior grate piece 1602, interior grate piece 1602 is conical, have by the inclined plane of the outer border of interior grate piece 1602 tilt up extension towards the center of interior grate piece 1602, ash on the convenient interior grate piece 1602 glides, prevent that it from piling up on interior grate piece 1602.

A plurality of second leak holes penetrating through the inner grate sheet 1602 are uniformly distributed on the inner grate sheet 1602, the second leak holes are perpendicular to the inner grate sheet 1602, and ashes on the inner grate sheet 1602 can leak into the ash tray 3 from the second leak holes.

Interior grate segment 1602 supports through a plurality of supporting shoes all around, the upper end and interior grate segment 1602 fixed connection of supporting shoe, lower extreme and outer grate segment 1601 fixed connection, a plurality of supporting shoes set up around the even interval of through-hole, form the clearing hole between two adjacent supporting shoes, have the massive lump formation that condenses after the solid useless burning, can't leak down through first small opening and second small opening, can leak down to in the ash tray 3 through the clearing hole.

The pivot 19 is located the center below of outer fire grate piece 1601, and pivot 19 supports outer fire grate piece 1601 through a plurality of support piece, and support piece's one end is fixed on the outer wall of pivot 19, and support piece's the other end is fixed at the lower surface of outer fire grate piece 1601, and a plurality of support piece set up around the even interval of pivot 19.

Preferably, the upper end of the rotating shaft 19 passes through the through hole and is fixedly connected with the lower surface of the inner grate sheet 1602, and the rotating shaft 19 abuts against the inner grate sheet 1602 to strengthen the bearing load of the inner grate sheet 1602.

An empty layer 15 is arranged on the inner wall of the pyrolysis cavity 101, the empty layer 15 is positioned at the lower part of the pyrolysis cavity 101 and arranged around the pyrolysis cavity 101, and the empty layer 15 is positioned above the grate 16 and has a certain distance with the grate 16.

Generally, when the waste is pyrolyzed, the waste is uniformly spread in the combustion chamber of the pyrolyzing furnace, the waste at the inner wall of the pyrolyzing chamber 101 is at the edge, so the air content in contact with the waste is less, the waste at the part is not sufficiently combusted, and the combustion speed is slow, so that when the pyrolysis is caused, the combustion speed of the waste at the middle part of the pyrolyzing chamber 101 is faster than that of the waste at the inner wall of the pyrolyzing chamber 101, the combustion is not uniform, the quality of the waste pyrolysis is reduced, and therefore the air content in contact with the waste at the inner wall of the pyrolyzing chamber 101 is increased by designing the overhead layer 15.

The overhead layer 15 include a plurality of overhead blocks, a plurality of overhead blocks all set up on the inner wall of pyrolysis chamber 101 and towards the central protrusion setting of pyrolysis chamber 101, a plurality of overhead blocks set up around pyrolysis chamber 101 inner wall equidistance interval, form the ascending air duct of vertical side between two adjacent overhead blocks.

When the waste is initially filled, the waste is uniformly paved upwards on the grate 16 to the pyrolysis chamber 101, that is, initially, the space between the overhead layer 15 and the grate 16 and the air channel are filled with the waste, when the waste starts to burn and pyrolyzes, the waste starts to burn upwards from the grate 16, coke is formed at the beginning, the coke continues to burn to form ash and falls into the ash tray 3, with the lapse of burning time, the coke layer gradually moves upwards, when the coke layer moves to the upper part of the overhead layer 15, the waste below the overhead layer 15 gradually burns to form ash and falls into the ash tray 3, that is, after burning for a period of time, the waste filled in the air channel and the waste below the overhead block are all burnt, and the coke is a massive condensate with a size larger than that of the air channel, therefore, the coke is erected above the burning speed and cannot fall into the air channel, therefore, enough space is left by the overhead block in the lower part area, and the waste in the air channel is burnt out to dredge the air channel, so that the lower part of the waste at the inner wall of the pyrolysis cavity 101 is filled with a large amount of air for the waste at the position to be burnt.

The upper surface of the overhead block is inclined downward from the inner wall of the pyrolysis chamber 101 toward the center of the pyrolysis chamber 101. Ash accumulated on the upper surface of the overhead block can slide down along the inclined upper surface of the overhead block.

The lower surface of the overhead block is inclined upwards, and the inner wall of the pyrolysis cavity 101 is inclined upwards towards the center of the pyrolysis cavity 101. Air below the overhead block may be diffused upward along the inclined lower surface.

The inclined length of the upper surface of the overhead block is longer than that of the lower surface of the overhead block.

Ash tray 3 is equipped with ventilation structure, ventilation structure includes air cooling jacket 8, air cooling jacket 8 sets up around pyrolysis chamber 101 cladding on pyrolysis chamber 101's outer wall, the air cooling jacket 8 has the space with pyrolysis chamber 101 outer wall between, the upper end and the pyrolysis chamber 101 outer wall of air cooling jacket 8 are sealed, the lower extreme that the air cooling jacket 8 is sealed with pyrolysis chamber 101's outer wall, form sealed air bed 801 between the outer wall of air cooling jacket 8 and pyrolysis chamber 101 promptly, air bed 801 sets up around pyrolysis chamber 101, communicate everywhere in the whole air bed 801. The upper end of the air cooling jacket 8 is provided with an air inlet which is communicated with the air layer 801, the lower end of the air cooling jacket 8 is provided with an air outlet which is communicated with the air layer 801, air enters the air layer 801 from the air inlet of the air cooling jacket 8 and then is discharged out of the air layer 801 from the air outlet from top to bottom. Because the pyrolysis temperature in the pyrolysis chamber 101 is very high, cause the outer wall in pyrolysis chamber 101 to have very high temperature, easily cause the scald to the human body, consequently, can be equipped with the thermal insulation layer in the outer wall in pyrolysis chamber 101 usually, through above-mentioned scheme, play thermal-insulated effect behind the air bed 801 the same ability, can reduce the thickness of thermal insulation layer, reduce thermal insulation material's use, the cost is reduced.

Preferably, air inlet has a plurality of, and a plurality of air inlet is around pyrolysis chamber 101 equidistance distribution for air cooling jacket 8 evenly has air inlet in the circumference, and the wind that gets into in the air bed 801 is even, makes air cooling jacket 8's thermal-insulated effect more even through this technical scheme.

Preferably, the upper end of the air layer 801 communicates with the inside of the top cover 2, and the air inlet is located on the side wall of the top cover 2.

Air outlet passes through ventilation pipe and ash tray 3 intercommunication, ventilation pipe's one end and air outlet connection and intercommunication, ventilation pipe's the other end and the 3 inside intercommunications of ash tray, pass through ventilation pipe entering ash tray 3 from air outlet exhaust air bed 801's air in, then because ash tray 3 and pyrolysis chamber 101 intercommunication to the air feed provides oxygen in the pyrolysis chamber 101, make the burning in the pyrolysis chamber 101 more abundant.

According to the preferred scheme, an ash tray air pipe 17 is arranged in the ash tray 3, the ash tray air pipe 17 is arranged along the circumferential direction of the inner wall of the ash tray 3, the ash tray air pipe 17 is communicated with the head and the tail of the ash tray air pipe 17, a plurality of air holes are formed in the ash tray air pipe 17 at equal intervals, the ash tray air pipe 17 is fixed on the side wall of the ash tray 3, and a ventilation pipeline is communicated with the ash tray air pipe 17. Because ash tray tuber pipe 17 sets up around ash tray 3, can make everywhere homoenergetic air-out in the ash tray 3, consequently the ventilation in the pyrolysis chamber 101 is more even.

According to the preferred technical scheme, ash tray air pipes 17 are arranged on the inner wall of the ash tray 3 along the circumferential direction of the inner wall of the ash tray 3, the ash tray air pipes 17 are matched with the ash tray air pipes 17, and the ash tray air pipes 17 are embedded into the ash tray air pipes 17 and fixed in the grooves.

The bottom of ash tray 3 is equipped with grey board 18, the cover is equipped with the swivel sleeve on the pivot 19, the lower extreme of swivel sleeve runs through ash tray 3 bottom and is connected with 18 motors 11 of grey board, the swivel sleeve passes through limit structure and restricts its activity from top to bottom, the one end and the swivel sleeve fixed connection of grey board 18, it is rotatory through 18 motors 11 drive grey boards 18 of grey board, 18 side stands of grey board and sets up, the downside of grey board 18 pastes the setting with 3 baseplates of ash tray, promote the ashes in the ash tray 3 to ash hole department through 18 rotations of grey board.

Pyrolysis chamber 101's top is equipped with smoke exhaust structure, smoke exhaust structure is located top cover 2, smoke exhaust structure includes first smoke exhaust chamber, first smoke exhaust chamber is located pyrolysis chamber 101 directly over, first smoke exhaust chamber includes bottom plate and first smoke exhaust chamber cover 14, the bottom plate is circular form, first smoke exhaust chamber cover 14 is located the top of bottom plate and covers the bottom plate, the height at first smoke exhaust chamber cover 14's center is higher than height all around, first smoke exhaust chamber cover 14's height begins to reduce gradually all around from the center promptly, first smoke exhaust chamber cover 14's horizontal cross-section is circular, the diameter of the bottom in first smoke exhaust chamber is unanimous with the diameter of bottom plate, first smoke exhaust chamber cover 14's bottom is around the outside border sealing connection of bottom plate.

In the preferred technical scheme of this embodiment, the circular arc transition is arranged at the connection between the lower end of the first exhaust cavity cover 14 and the outer edge of the bottom plate, because the air flow on the circular arc surface is smoother than the air flow at the included angle.

A second smoke exhaust cavity is arranged above the first smoke exhaust cavity, the second smoke exhaust cavity comprises a second smoke exhaust cavity cover 12, the height of the center of the second smoke exhaust cavity cover 12 is higher than the height of the periphery, namely the height of the second smoke exhaust cavity cover 12 is gradually reduced from the center to the periphery, the horizontal section of the second smoke exhaust cavity cover 12 is circular, the diameter of the bottom end of the second smoke exhaust cavity cover 12 is consistent with the diameter of the bottom plate, the bottom end of the second smoke exhaust cavity cover 12 is hermetically connected with the connecting part of the first smoke exhaust cavity cover 14 and the bottom plate around, namely the second smoke exhaust cavity cover 12 is covered above the first smoke exhaust cavity cover 14, a sealed second smoke exhaust cavity is formed between the first smoke exhaust cavity cover 14 and the second smoke exhaust cavity cover 12, a smoke exhaust port 13 is arranged at the center of the second smoke exhaust cavity cover 12, the smoke exhaust port 13 is connected with a smoke exhaust pump through a smoke exhaust pipe, and smoke in the pyrolysis cavity 101 is exhausted through the suction force of the smoke exhaust pump. The first smoke exhaust cavity cover 14 is provided with a plurality of smoke exhaust holes which are uniformly distributed, the first smoke exhaust cavity and the second smoke exhaust cavity are communicated through the smoke exhaust holes, and preferably, the smoke exhaust holes are perpendicular to the first smoke exhaust cavity cover 14.

Under the general condition, when the aspirator pump during operation, the suction that is located near exhaust port 13 will be greater than the suction of keeping away from exhaust port 13, nevertheless passes through the utility model discloses in the design of the structure of first exhaust hood and second exhaust hood, can be so that first exhaust chamber and second exhaust the interior suction everywhere of intracavity is even unanimous, the negative pressure that forms everywhere in first exhaust chamber and second exhaust the intracavity promptly is unanimous.

In order to further enhance the uniformity of the suction force in each of the first smoke exhausting chamber and the second smoke exhausting chamber in the present embodiment, the first smoke exhausting chamber cover 14 and the second smoke exhausting chamber cover 12 are both spherical, so that the inner wall and the outer wall of the first smoke exhausting chamber and the inner wall and the outer wall of the second smoke exhausting chamber are both arc surfaces.

First exhaust smoke chamber is through a plurality of connecting pipes and pyrolysis chamber 101 intercommunication, and the upper end evenly distributed on the bottom plate of a plurality of connecting pipes makes the negative pressure in every connecting pipe unanimous, and the lower extreme of a plurality of connecting pipes is in the upper end evenly distributed of pyrolysis chamber 101, makes the negative pressure that forms everywhere on the same horizontal plane in upper end of pyrolysis chamber 101 be the suction even unanimous, the equal vertical setting of a plurality of connecting pipes, and the length of a plurality of connecting pipes is unanimous. Avoid the suction of a certain department to be greater than the suction of other everywhere far away, cause the solid useless burning that corresponds below this department too fast.

The lateral wall of top cover is including dismantling the last lateral wall and the lower lateral wall of connection, goes up the lateral wall and is located lateral wall top down, conveniently opens the top cover and maintains.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like refer to the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, or the orientation or position relationship that one skilled in the art conventionally understands, and are only for convenience of describing the present invention and simplifying the description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Claims

1. A pyrolysis furnace is characterized by comprising a top cover, a pyrolysis cavity and an ash tray which are arranged from top to bottom, wherein a feeding hole is formed in the side wall of the pyrolysis cavity and is positioned at the upper end of the pyrolysis cavity, the feeding hole is connected with a material conveying device which is arranged in a sealing manner, a distributing plate for pushing solid waste is arranged in the pyrolysis cavity and is positioned on the inner side of the upper wall of the pyrolysis cavity, the height of the distributing plate corresponds to that of the feeding hole, a rotating shaft is arranged at the upper end of the distributing plate, a bearing seat is arranged in the middle of the upper wall of the pyrolysis cavity and is matched with the rotating shaft, the rotating shaft is arranged on the upper wall of the pyrolysis cavity through the bearing seat and is driven to rotate through a rotating mechanism, the bottom end of the pyrolysis cavity is communicated with the ash tray, a fire grate is arranged at the bottom end of the pyrolysis furnace, the ash tray is positioned, rotate sealing connection between pivot and the ash tray, support piece's one end and pivot outer wall fixed connection, the lower fixed surface of the other end and outer grate segment piece is connected, is equipped with the built on stilts layer on the inner wall in pyrolysis chamber, and the built on stilts layer is located the lower part in pyrolysis chamber and around the setting of pyrolysis chamber, and the ash tray is equipped with the ventilation structure, and the bottom of ash tray has ash leakage mouth, is equipped with smoke exhaust structure in the top cover.

2. The pyrolysis furnace of claim 1, wherein the grate comprises an outer grate segment and an inner grate segment, a horizontal projection of the inner grate segment is circular, an outer edge of the outer grate segment extends below an inner wall of a combustion chamber of the pyrolysis furnace, a height of an upper surface of the outer grate segment gradually decreases from the outer edge of the outer grate segment to a center of the outer grate segment, a through hole penetrating the outer grate segment is formed in the center of the outer grate segment, the inner grate segment is disposed above the through hole, the horizontal projection of the inner grate segment is circular, the size of the inner grate segment is larger than that of the through hole to completely cover the through hole, the height of the upper surface of the inner grate segment gradually increases from the outer edge of the inner grate segment to the center of the inner grate segment, the inner grate segment and the outer grate segment are supported by a plurality of support blocks, lower ends of the support blocks are fixedly connected to the outer grate segment and are spaced around the through hole, and upper ends of the support blocks are fixedly connected to the inner grate segment, and set up around the circumference interval of interior grate segment, form the clearing hole between two supporting shoes, have evenly distributed's first small opening on the outer grate segment, have evenly distributed's second small opening on the interior grate segment, the below at outer grate segment center is equipped with the pivot, and the pivot supports outer grate segment through a plurality of support piece.

3. The pyrolysis furnace of claim 1, wherein the smoke exhaust structure comprises a first smoke exhaust cavity, the first smoke exhaust cavity is positioned right above the combustion chamber of the pyrolysis furnace, the first smoke exhaust cavity comprises a bottom plate and a first smoke exhaust cavity cover positioned above the bottom plate, the bottom plate is circular, the height of the first smoke exhaust cavity cover is gradually reduced from the center to the periphery, the horizontal section of the first smoke exhaust cavity cover is circular, and the bottom end of the first smoke exhaust cavity cover is hermetically connected around the outer side edge of the bottom plate; a second smoke exhaust cavity is arranged above the first smoke exhaust cavity and comprises a second smoke exhaust cavity cover, the height of the second smoke exhaust cavity cover is gradually reduced from the center to the periphery, the horizontal section of the second smoke exhaust cavity cover is circular, the bottom end of the second smoke exhaust cavity cover is hermetically connected around the joint of the first smoke exhaust cavity cover and the bottom plate, and a sealed second smoke exhaust cavity is formed between the first smoke exhaust cavity cover and the second smoke exhaust cavity cover; the center department of second smoke exhaust chamber cover is equipped with the exhaust port, and the exhaust port has the smoking pump through the union coupling of discharging fume, and first smoke exhaust chamber is through a plurality of connecting pipes and pyrolysis oven combustion chamber intercommunication, and evenly distributed is gone up to the upper end of a plurality of connecting pipes on the bottom plate, and the lower extreme of a plurality of connecting pipes is in the upper end evenly distributed of pyrolysis oven combustion chamber.

4. The pyrolysis furnace of claim 3, wherein the first and second fume extraction chamber covers are spherical in shape, and the connection between the lower end of the first fume extraction chamber cover and the outer edge of the bottom plate is arranged in a circular arc transition manner.

5. The pyrolysis furnace of claim 1, wherein the overhead layer comprises a plurality of overhead blocks, the plurality of overhead blocks are positioned on the inner wall of the combustion chamber of the pyrolysis furnace and are arranged to protrude toward the center of the combustion chamber of the pyrolysis furnace, the plurality of overhead blocks are arranged at intervals around the inner wall of the combustion chamber of the pyrolysis furnace, and a vertical air passage is formed between two adjacent overhead blocks.

6. The pyrolysis furnace according to claim 1, wherein the ventilation structure comprises an air cooling jacket wrapped around the pyrolysis chamber on the outer wall of the pyrolysis chamber, a gap is formed between the air cooling jacket and the outer wall of the pyrolysis chamber to form an air layer, the upper end of the air cooling jacket is sealed with the outer wall of the pyrolysis chamber, the lower end of the air cooling jacket is sealed with the outer wall of the pyrolysis chamber and communicated with the whole air layer, an air inlet is formed in the upper end of the air cooling jacket, an air outlet is formed in the lower end of the air cooling jacket, and the air outlet is communicated with the ash bucket through a ventilation.

7. The pyrolysis furnace of claim 1, wherein the bottom of the ash tray is provided with an ash plate, the rotating shaft is sleeved with a rotating sleeve, the lower end of the rotating sleeve penetrates through the bottom of the ash tray and is connected with an ash plate motor, the rotating sleeve limits the vertical movement of the rotating sleeve through a limiting structure, one end of the ash plate is fixedly connected with the rotating sleeve, the ash plate is driven to rotate by the ash plate motor, the ash plate is arranged in a side-standing manner, and the lower side of the ash plate is attached to the bottom plate of the ash tray.

8. The pyrolysis furnace of claim 1, wherein the distribution plate is plate-shaped and is disposed on a side, one end of the distribution plate is fixedly connected with the rotating shaft, the other end of the distribution plate is disposed near the inner wall of the pyrolysis cavity, the distribution plate comprises a connecting portion and a distribution portion, the connecting portion is located above the distribution plate, the connecting portion and the connecting line of the distribution portion form an arc line, the arc line is bent downwards from one end of the distribution plate, which is far away from the rotating shaft, toward the direction of the rotating shaft and extends to the lower side of the distribution plate, the distribution portion is provided with an arc surface, the arching direction of the arc surface faces the rotating direction of the distribution plate, the number of the distribution plates is two, and the two distribution plates are.

9. The pyrolysis furnace of claim 1, wherein the middle portion of the upper wall of the pyrolysis chamber has a mounting hole penetrating through the upper wall of the pyrolysis chamber, the bearing seat is located in the mounting hole, the bearing seat comprises an outer sleeve, the outer sleeve is hermetically and detachably connected with the upper wall of the pyrolysis chamber, an upper pressing plate is arranged above the outer sleeve, the upper pressing plate is tightly pressed on the upper end surface of the outer sleeve and fixedly connected with the upper pressing plate through a bolt, an inner sleeve is fixedly arranged in the outer sleeve, the upper end surface of the inner sleeve is abutted against the upper pressing plate and fixedly connected with the upper pressing plate through a bolt, a lower pressing plate is sleeved on the outer wall of the lower end of the inner sleeve around the inner sleeve, a lower pressing plate connecting groove matched with the lower pressing plate is arranged on the inner wall of the outer sleeve around, one end of the lower pressing plate, far away from the outer wall of the inner sleeve, a copper sleeve is fixedly arranged in the inner sleeve, the lower, rotation axis and copper sheathing inner wall match the setting, the rotation axis slides in the copper sheathing and rotates, the rotation axis includes main shaft and connecting axle, the main shaft is located the copper sheathing, the lower extreme of main shaft stretches out the copper sheathing and is equipped with the evagination edge that encircles the main shaft setting, the upper surface on evagination edge and the lower terminal surface butt of copper sheathing, the up end of main shaft flushes the setting with the up end of copper sheathing, the connecting axle is located the upper end of main shaft and sets up with main shaft integrated into one piece, connecting axle and the coaxial setting of main shaft, the pivot hole that supplies the connecting axle to wear out has on the top board, can dismantle the cover on the connecting axle and press the pipe, the space has between the outer wall of pressing the pipe and the inner wall in pivot hole, the up end of main shaft and the up end of copper sheathing are pushed down simultaneously to the lower terminal surface.

10. The pyrolysis furnace of claim 1, wherein the side walls of the top housing include removably attached upper and lower side walls, the upper side wall being positioned above the lower side wall.