CN211502783U - Domestic waste and mud cooperative processing system - Google Patents

Abstract

The utility model relates to a domestic waste and sludge treatment technical field provide a domestic waste and mud cooperative processing system. The system comprises a drying device, an incineration device and a residue treatment device. The drying device comprises a hollow blade shaft, a cylinder, a hollow blade, a kiln head cover, a kiln tail cover, a rotary joint and a first motor; the incineration device comprises a furnace body, a fixed fire grate segment and a movable fire grate segment; the residue treatment device comprises a spiral feeder and a second motor. The utility model provides a pair of domestic waste and mud cooperative processing system carries out drying process and pyrolysis gasification to domestic waste and mud respectively through the dry section of barrel and gasification section for domestic waste and mud get into the furnace body and change and burn. The fixed fire grate pieces and the movable fire grate pieces in the furnace body cooperate to ensure that the domestic garbage and the sludge are more fully incinerated, and the residues after incineration treatment enter the water storage tank to be contacted with water, so that the generation of raised dust is avoided, and the working environment is improved.

Description

Domestic waste and mud cooperative processing system

Technical Field

The utility model relates to a domestic waste and sludge treatment technical field, concretely relates to domestic waste and mud cooperative processing system.

Background

With the improvement of living standard, daily garbage is generated more and more globally every year, and the amount of generated sewage and sludge is increased more and more. These domestic wastes and sludges usually contain a large amount of microorganisms and heavy metals, and if not treated, will cause serious harm to the ecological environment.

At present, the incineration treatment of domestic garbage and sludge is the most widely applied mode. Domestic waste and sludge usually contain more moisture, and current processing apparatus does not carry out drying process to domestic waste and sludge before burning to also do not carry out better processing to the residue after burning. Lack of drying treatment causes difficulty in incineration of household garbage and sludge, lack of good treatment of residue causes dust emission, and the working environment becomes severe.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a domestic waste and mud cooperative processing system can carry out drying process to domestic waste and mud before burning to carry out adsorption treatment to the residue after burning, make domestic waste and mud burn more easily, improve operational environment simultaneously.

The utility model provides a domestic waste and mud cooperative processing system, this system includes drying device, burns device and residue processing apparatus, drying device includes hollow paddle shaft, barrel, hollow paddle, kiln hood cover, kiln tail cover, rotary joint and first motor, hollow paddle shaft slope sets up, hollow paddle shaft inside has along the first cavity of axis direction extension and is located the second cavity of first cavity periphery, the barrel overlaps along the extending direction cover of hollow paddle shaft and is established in the outside of hollow paddle shaft, and a plurality of hollow paddle interval sets up on the hollow paddle shaft, hollow paddle and the corresponding second cavity inside the hollow paddle shaft communicate through first pipeline and still communicate with the corresponding first cavity inside the hollow paddle shaft through the second pipeline, kiln hood has the feed inlet with the inside intercommunication of barrel, the kiln head cover is sleeved at the upper end of the cylinder body, the kiln tail cover is provided with a discharge hole communicated with the interior of the cylinder body, the kiln tail cover is sleeved at the lower end of the cylinder body, an igniter is arranged in the kiln tail cover, the rotary joint is arranged at one end of the hollow blade shaft, and the first motor is used for driving the hollow blade shaft to rotate; the incinerator comprises an incinerator body, fixed grate pieces and movable grate pieces, wherein the incinerator body is arranged below the kiln tail cover, one end of the incinerator body is communicated with the discharge hole in the kiln tail cover, the fixed grate pieces and the movable grate pieces are sequentially and alternately arranged in the incinerator body along the transverse direction, the movable grate pieces can do reciprocating linear motion along the longitudinal direction, a chimney is arranged at the upper end of the incinerator body, and the chimney is communicated with the interior of the kiln tail cover; the residue processing device comprises a spiral feeder and a second motor, the spiral feeder is obliquely arranged, the lower end of the spiral feeder is located below the furnace body and communicated with the other end of the furnace body, the lower end of the spiral feeder is provided with a water storage tank, the upper end of the spiral feeder is provided with a slag outlet, the second motor is used for driving a feeding shaft in the spiral feeder to rotate, and the feeding shaft is provided with spiral blades along the extending direction.

Further, the cylinder comprises a drying section and a gasification section positioned below the drying section, and the hollow blades are arranged on the hollow blade shaft positioned in the drying section at intervals.

Further, a scraper is arranged at one end, far away from the hollow blade shaft, of the hollow blade in the drying section.

The kiln head cover and the kiln tail cover are respectively provided with a heat medium outlet and a heat medium inlet which are communicated with the corresponding cavities, the two cavities are communicated with the first jacket, and the driving device is used for driving the cylinder to rotate.

Further, drive arrangement includes mount, shifting pin, third motor, shifting fork sword and shift fork, the mount cover is established on the barrel, and is a plurality of the shifting pin is followed the circumference equipartition of mount is in on the mount, and all with the connection can be dismantled to the mount, mount and adjacent two be formed with the recess between the shifting pin, the third motor with the one end fixed connection of shift fork, the shifting fork sword with the connection can be dismantled to the other end of shift fork, the shifting fork sword can insert and break away from the recess.

Furthermore, the upper ends of the fixed fire grate segment and the movable fire grate segment are respectively provided with a crushing blade for scattering and cutting the domestic garbage and the sludge.

Furthermore, a plurality of water filtering holes are distributed on the spiral blade.

Further, the spiral blades above the slag outlet and the spiral blades below the slag outlet have opposite rotating directions.

Further, a second jacket is arranged on the outer wall of the shell of the spiral feeder, one end of the second jacket is communicated with the air pump, and the other end of the second jacket is communicated with the furnace body.

The utility model has the advantages that: the utility model provides a pair of domestic waste and mud cooperative processing system before carrying out incineration disposal to domestic waste and mud, carries out drying process and pyrolysis gasification processing to domestic waste and mud respectively through the dry section of barrel and gasification section for domestic waste and mud get into and change in the furnace body and burn. The fixed fire grate pieces and the movable fire grate pieces in the furnace body cooperate to ensure that the domestic garbage and the sludge are more fully incinerated, and the residues after incineration treatment enter the water storage tank to be contacted with water, so that the generation of raised dust is avoided, and the working environment is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the drying apparatus;

FIG. 3 is a schematic view of the structure of an incineration apparatus;

FIG. 4 is a schematic view of the residue processing apparatus;

FIG. 5 is a schematic sectional front view of the drying apparatus;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is an enlarged view of portion B of FIG. 2;

FIG. 8 is a side view of the driving device;

FIG. 9 is a schematic structural view of a hollow blade shaft;

FIG. 10 is a schematic cross-sectional view of the fork;

reference numerals: 10-drying device, 11-hollow blade shaft, 111-first cavity, 112-second cavity, 12-cylinder, 121-drying section, 122-gasification section, 123-first jacket, 13-hollow blade, 131-scraper, 14-kiln hood, 141-heat medium outlet, 142-feed inlet, 15-kiln hood, 151-heat medium inlet, 152-discharge outlet, 153-igniter, 16-rotary joint, 17-first motor, 20-incineration device, 21-furnace body, 22-fixed grate segment, 23-movable grate segment, 24-chimney, 25-crushing blade, 30-residue treatment device, 31-screw feeder, 311-second jacket, 32-second motor, 33-water storage tank, 34-a slag hole, 35-a feeding shaft, 36-a helical blade, 40-a driving device, 41-a fixing frame, 42-a shifting pin, 43-a third motor, 44-a shifting fork blade, 45-a shifting fork, 451-a pin sleeve, 452-a shock absorption pad, 453-a first containing groove, 454-a pushing piece, 455-a second spring, 456-a second containing groove, 46-a groove, 50-a cavity, 60-a sealing ring, 70-a first pipeline, 80-a second pipeline, 90-an anti-reverse mechanism, 91-a base, 92-a stopping piece, 93-a first spring and 94-an inclined surface.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In this application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "horizontal," "top," "bottom," "upper," "lower," "inner" and "outer" and the like are used in the orientation or positional relationship shown in the drawings, which are used for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. 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. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1-10, the utility model provides a domestic waste and sludge cooperative processing system, which comprises a drying device 10, an incineration device 20 and a residue treatment device 30.

The drying device 10 comprises a hollow blade shaft 11, a cylinder 12, a hollow blade 13, a kiln head cover 14, a kiln tail cover 15, a rotary joint 16 and a first motor 17. The hollow blade shaft 11 is obliquely arranged, a first cavity 111 extending along the axial direction and a second cavity 112 located at the periphery of the first cavity 111 are arranged inside the hollow blade shaft 11, the cylinder 12 is sleeved outside the hollow blade shaft 11 along the extending direction of the hollow blade shaft 11, and the hollow blades 13 are arranged on the hollow blade shaft 11 at intervals. The hollow blades 13 communicate with the second cavities 112 inside the corresponding hollow blade shafts 11 through the first ducts 70, and also communicate with the first cavities 111 inside the corresponding hollow blade shafts 11 through the second ducts 80. The kiln head cover 14 is provided with a feed inlet 142 communicated with the interior of the cylinder 12 and sleeved at the upper end of the cylinder 12, the kiln tail cover 15 is provided with a discharge outlet 152 communicated with the interior of the cylinder 12 and sleeved at the lower end of the cylinder 12, and an igniter 153 is arranged in the kiln tail cover 15.

A rotary joint 16 is provided at one end of the hollow blade shaft 11 through a bearing housing, and a first motor 17 is used to drive the hollow blade shaft 11 to rotate. The heat medium is introduced from the second cavity 112 of the rotary joint 16, diffused to the hollow blades 13 through the first pipeline 70, and after heat exchange with the household garbage and the sludge, the heat medium flows back to the first cavity 111 through the second pipeline 8 and is discharged.

The incineration device 20 comprises a body 21, a fixed grate segment 22 and a movable grate segment 23. The furnace body 21 is arranged below the kiln tail cover 15, one end of the furnace body is communicated with the discharge hole 152 on the kiln tail cover 15, and domestic garbage and sludge subjected to drying treatment can directly enter the furnace body 21 from the discharge hole 152 on the kiln tail cover 15 conveniently. The fixed fire grate segments 22 and the movable fire grate segments 23 are sequentially and alternately arranged in the furnace body 21 along the transverse direction, and the movable fire grate segments 23 can do reciprocating linear motion along the longitudinal direction under the transmission action of the six-direction crankshaft and the rocker.

The longitudinal movement of the movable grate segments 23 can break up and stir the household garbage and sludge, facilitate incineration and simultaneously promote the movement of the household garbage and sludge. The movable fire grate segments 23 also make it easier for air in the air chamber of the furnace body 21 to enter the gaps between the domestic waste and the sludge, thereby further promoting incineration. Domestic waste and sludge are incinerated in the furnace body 21, part of hot flue gas generated by incineration is discharged from a chimney 24 at the upper end of the furnace body 21 and introduced into the kiln tail cover 15 to exchange heat with the domestic waste and the sludge in the cylinder 12, and the other part of hot flue gas is discharged after treatment, so that the waste heat of the hot flue gas generated by incineration is fully utilized. The domestic garbage and waste plastics enter the cylinder body 12 from the feeding hole 142, exchange heat with the heat medium in the hollow blade shaft 11 and the hollow blade 13, become dry and are convenient for subsequent incineration. The hot flue gas enters the cylinder body 12, the heat of the hot flue gas generated by incineration treatment is fully utilized, and the energy is saved.

The residue processing device 30 includes a screw feeder 31 and a second motor 32. The spiral feeder 31 is obliquely arranged, the lower end of the spiral feeder 31 is positioned below the furnace body 21 and is communicated with the other end of the furnace body 21 through a pipeline, and residues after incineration treatment can directly fall into the lower end of the spiral feeder 31 conveniently. The spiral feeder 31 has a water storage tank 33 at a lower end thereof and a slag outlet 34 at an upper end thereof, the second motor 32 is configured to drive a feeding shaft 35 in the spiral feeder 31 to rotate, and a spiral blade 36 is provided on the feeding shaft 35 in an extending direction.

The residue falling into the lower end of the spiral feeder 31 contacts with the water in the water storage tank 33, thereby avoiding the generation of dust and improving the working environment of workers. The residue in contact with the water is transferred by the screw blade 36 to move upward and is discharged from the slag hole 34 at the upper end. The moisture adhered to the residue flows back to the water storage tank 33 through a gap between the screw blade 36 and the casing of the screw feeder 31.

In one embodiment, the barrel 12 includes a drying section 121 and a gasification section 122 located below the drying section 121. A plurality of hollow blades 13 are provided at intervals on the hollow blade shaft 11 in the drying section 121 and communicate with the hollow blade shaft 11. The domestic waste and sludge first enter the drying section 121 and exchange heat with the heat medium inside the hollow blade shaft 11 and hollow blades 13 located inside the drying section 121.

The dried domestic waste and sludge are then fed into the gasification section 122 for pyrolysis and gasification. The hollow blade shaft 11 in the gasification section 122 is not provided with the hollow blades 13, so that the domestic garbage and the sludge are not pushed by the hollow blades 13 to move, and only slowly move under the action of gravity. Thereby increased domestic waste and mud pyrolysis gasification treatment time at gasification section 122 for domestic waste and the inside combination water of mud are evaporated in a large number, and the free water of evaporation in the dry section 121 of cooperation makes the drying of domestic waste and mud more thorough, further promotes to burn. The pyrolysis gasification treatment can also generate part of combustible gas, and the cylinder 12 is communicated with the furnace body 21, so that the combustible gas obtained by pyrolysis gasification enters the furnace body 21 to be combusted.

In one embodiment, the hollow blades 13 located in the drying section 121 are provided with scrapers 131 at their ends remote from the hollow blade shaft 11. When the hollow blade shafts 11 are rotated, the scrapers 131 of the adjacent hollow blades 13 on the two hollow blade shafts 11 alternate with each other, thereby scraping off the adhered matter adhered to the hollow blades 13.

In one embodiment, a drive device 40 is also included. The cylinder 12 is internally provided with a first jacket 123 for containing a heat medium, and the kiln head cover 14 and the kiln tail cover 15 are both rotatably connected with the cylinder 12 and are also both connected with the cylinder 12 in a sealing way. The cylinder body 12 is supported by a rolling ring and a riding wheel, the rolling ring is sleeved on the periphery of the cylinder body 12 and is fixedly connected with the cylinder body 12, and the riding wheel is arranged on the support and is in rolling contact with the rolling ring.

The kiln head cover 14 and the kiln tail cover 15 are internally provided with annular cavities 50, the cavities 50 form closed spaces by arranging sealing rings 60 on two sides, the kiln head cover 14 and the kiln tail cover 15 are respectively provided with a heat medium outlet 141 and a heat medium inlet 151 which are communicated with the corresponding cavities 50, the two cavities 50 are communicated with the first jacket 123, and the driving device 40 is used for driving the cylinder 12 to rotate. The heat medium after being pressurized by equipment such as a booster pump enters the first jacket 123, the domestic garbage and the sludge in the cylinder 12 are heated in an external heating mode, and the effects of drying treatment and pyrolysis gasification treatment are better by matching with the internal heating mode of the hollow blade shaft 11 and the hollow blade 13.

In one embodiment, the fixing frame 41 is provided with a reverse rotation preventing mechanism 90 for preventing the cylinder 12 from reversing, and the reverse rotation preventing mechanism 90 comprises a base 91, a stopper 92 and a first spring 93.

The base 91 is fixedly mounted on the fixing frame 41 and located below the cylinder 12.

The lower end of the stopper 92 is slidably coupled to the base 91 in the longitudinal direction, and the upper end of the stopper 92 has an inclined surface 94.

And a first spring 93 having both ends connected to the base 91 and the stopper 92, respectively.

In a natural state, when the pin 42 is not in contact with the inclined surface 94, the stopper 92 is located between two adjacent pins 42 due to the first spring 93.

When the barrel 12 is rotated in the forward direction, the pin 42 can slide past the inclined surface 94 on the stop 92;

when the barrel 12 is rotated in the reverse direction, the pin 42 is blocked by the stopper 92.

The anti-reverse mechanism 90 is provided to prevent the reverse rotation of the cylinder 12 during the interval in which the shift fork 45 does not drive the pin 42 to rotate the cylinder 12. And the anti-reversion mechanism 90 has simple structure.

In one embodiment, a pin sleeve 451 is sleeved on the outer circumferential surface of the poking pin 42, the pin sleeve 451 is rotatably connected with the poking pin 42, a first accommodating groove 453 which is annular and coaxial with the pin sleeve 42 is formed on the outer circumferential surface of the pin sleeve 451, and the number of the first accommodating grooves 453 is at least one. The first receiving groove 453 is provided with a shock absorbing pad 452, and the shock absorbing pad 452 is preferably made of rubber. A plurality of second accommodating grooves 456 are formed in the bottom of the first accommodating groove 453 along the circumferential direction, a second spring 455 and a pushing member 454 are arranged in the second accommodating groove 456, two ends of the second spring 455 are respectively abutted to the bottom of the second accommodating groove 456 and one end of the pushing member 454, the pushing member 454 is connected with the second accommodating groove 456 in a sliding manner, and the other end of the pushing member 454 extends out of the second accommodating groove 456 and is abutted to the inner circumferential surface of the shock pad 452;

in a natural state, a portion of the shock pad 452 abutting against the pushing member 454 protrudes out of the outer circumferential surface of the pin sleeve 451, and when the fork 45 abuts against the shock pad 452 and the pushing member 454 moves into the second receiving groove 456, the portion of the shock pad 452 abutting against the fork 45 is completely received in the first receiving groove 453.

In this embodiment, in a natural state, since the second spring 455 pushes the pushing member 454 out of the second receiving groove 456, the pushing member 454 also pushes the shock pad 452 outward, so that the portion of the shock pad 452 pushed up by the pushing member 454 protrudes out of the outer peripheral surface of the pin sleeve 451. Due to the arrangement, the rotating shifting fork 45 is firstly abutted with the part of the shock absorption pad 452 protruding out of the outer peripheral surface of the pin sleeve 451, so that the shifting fork 45 is prevented from contacting with the pin sleeve 451, and noise and vibration generated in the contact process are reduced. After the shift fork 45 contacts the portion of the shock pad 452 protruding from the outer circumferential surface of the pin sleeve 451, the push member 454 moves toward the bottom of the second receiving groove 456, so that the shock pad 452 gradually moves into the first receiving groove 453 until the portion contacting the shift fork 45 is completely located in the first receiving groove 453. The fork 45 then makes rolling contact with the pin sleeve 451, and the pin sleeve 451 is rotationally connected to the pin 42, thereby avoiding wear on both the pin 42 and the cushion 452.

In one embodiment, the upper ends of the fixed and movable grate segments 22 and 23 are each provided with a crushing blade 25 for scattering and cutting the household garbage and sludge. It is preferable that the crushing blades 25 of the fixed and movable grate segments 22 and 23 are installed at different positions, which is advantageous in cooperation to crush the domestic garbage and sludge at different angles. The design of the crushing blade 25 enables the household garbage and the sludge to be crushed into fine structures, thereby facilitating incineration.

In one embodiment, a plurality of water filtering holes are distributed on the spiral blade 36, so that when the residue moves upwards under the action of the feeding shaft 35 and the spiral blade 36, the adhered moisture can flow back to the water storage tank 33.

In one embodiment, the helical vanes 36 above the slag notch 34 and the helical vanes 36 below the slag notch 34 are oppositely spiraled. The reverse spiral design prevents the build up of debris at the tap hole 34, facilitating the collection of debris by the worker.

In one embodiment, a second jacket 311 is provided on an outer wall of the casing of the screw feeder 31. One end of the second jacket 311 is communicated with the air pump, and the other end is communicated with the furnace body 21. The air pressurized by the air pump enters the second jacket 311, exchanges heat with the residue in the screw feeder 31, and the air with the obtained heat enters the furnace body 21 to promote incineration. The design of the second jacket 311 fully utilizes the residual heat of the residue, and saves energy.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. The utility model provides a domestic waste and mud cooperative processing system which characterized in that: comprises a drying device, an incineration device and a residue treatment device,

the drying device comprises a hollow blade shaft, a cylinder body, hollow blades, a kiln hood cover, a kiln tail cover, a rotary joint and a first motor, wherein the hollow blade shaft is obliquely arranged, a first cavity extending along the axis direction and a second cavity positioned at the periphery of the first cavity are arranged in the hollow blade shaft, the cylinder body is sleeved on the outer side of the hollow blade shaft along the extending direction of the hollow blade shaft, a plurality of hollow blades are arranged on the hollow blade shaft at intervals, the hollow blades are communicated with the second cavity in the corresponding hollow blade shaft through a first pipeline and are also communicated with the first cavity in the corresponding hollow blade shaft through a second pipeline, a feed inlet communicated with the inside of the cylinder body is arranged on the kiln head cover, the kiln hood cover is sleeved on the upper end of the cylinder body, and a discharge outlet communicated with the inside of the cylinder body is arranged on the kiln tail cover, the kiln tail cover is sleeved at the lower end of the cylinder body, an igniter is arranged in the kiln tail cover, the rotary joint is arranged at one end of the hollow blade shaft, and the first motor is used for driving the hollow blade shaft to rotate;

the incinerator comprises an incinerator body, fixed grate pieces and movable grate pieces, wherein the incinerator body is arranged below the kiln tail cover, one end of the incinerator body is communicated with the discharge hole in the kiln tail cover, the fixed grate pieces and the movable grate pieces are sequentially and alternately arranged in the incinerator body along the transverse direction, the movable grate pieces can do reciprocating linear motion along the longitudinal direction, a chimney is arranged at the upper end of the incinerator body, and the chimney is communicated with the interior of the kiln tail cover;

the residue processing device comprises a spiral feeder and a second motor, the spiral feeder is obliquely arranged, the lower end of the spiral feeder is located below the furnace body and communicated with the other end of the furnace body, the lower end of the spiral feeder is provided with a water storage tank, the upper end of the spiral feeder is provided with a slag outlet, the second motor is used for driving a feeding shaft in the spiral feeder to rotate, and the feeding shaft is provided with spiral blades along the extending direction.

2. The domestic waste and sludge co-processing system according to claim 1, wherein: the cylinder comprises a drying section and a gasification section positioned below the drying section, and the hollow blades are arranged on the hollow blade shaft positioned in the drying section at intervals.

3. The domestic waste and sludge co-processing system of claim 2, wherein: and a scraper is arranged at one end, far away from the hollow blade shaft, of the hollow blade in the drying section.

4. The domestic waste and sludge co-processing system according to claim 1, wherein: the kiln head cover and the kiln tail cover are respectively provided with a heat medium outlet and a heat medium inlet which are communicated with the corresponding cavities, the two cavities are communicated with the first jacket, and the driving device is used for driving the cylinder to rotate.

5. The domestic waste and sludge co-processing system of claim 4, wherein: drive arrangement includes mount, group round pin, third motor, shifting fork sword and shift fork, the mount cover is established on the barrel, and is a plurality of the shifting pin is followed the circumference equipartition of mount is in on the mount, and all with the connection can be dismantled to the mount, mount and adjacent two be formed with the recess between the shifting pin, the third motor with the one end fixed connection of shift fork, the shifting fork sword with the connection can be dismantled to the other end of shift fork, the shift fork sword can insert and break away from the recess.

6. The domestic waste and sludge co-processing system according to claim 1, wherein: the upper ends of the fixed fire grate segment and the movable fire grate segment are provided with crushing blades for scattering and cutting the household garbage and the sludge.

7. The domestic waste and sludge co-processing system according to claim 1, wherein: a plurality of water filtering holes are distributed on the spiral blade.

8. The domestic waste and sludge co-processing system according to claim 1, wherein: and the spiral blades above the slag outlet and the spiral blades below the slag outlet have opposite rotating directions.

9. The domestic waste and sludge co-processing system according to claim 1, wherein: and a second jacket is arranged on the outer wall of the shell of the spiral feeder, one end of the second jacket is communicated with the air pump, and the other end of the second jacket is communicated with the furnace body.

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