CN108286712B - Waste treatment tube furnace based on gear-rubbing fire bar group - Google Patents
Waste treatment tube furnace based on gear-rubbing fire bar group Download PDFInfo
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- CN108286712B CN108286712B CN201810212317.XA CN201810212317A CN108286712B CN 108286712 B CN108286712 B CN 108286712B CN 201810212317 A CN201810212317 A CN 201810212317A CN 108286712 B CN108286712 B CN 108286712B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/085—High-temperature heating means, e.g. plasma, for partly melting the waste
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/10—Drying by heat
Abstract
The invention discloses a waste treatment tube furnace based on a gear-rubbing fire bar set, which can stir, loosen and break up garbage. The device comprises a working bottom plate, a supporting frame, a thermal reaction tube and a heating furnace, wherein a fixed cross beam is fixed in the thermal reaction tube, a movable fire bar group and a fixed fire bar group are transversely arranged on the fixed cross beam, and a driving device for driving each movable fire bar to longitudinally move is arranged on the working bottom plate.
Description
Technical Field
The invention belongs to a pyrolysis incinerator grate of a main part for pyrolysis incineration treatment of solid waste, and particularly relates to a waste treatment tube furnace based on a gear-rubbing grate set.
Background
The existing municipal solid waste treatment technology mainly comprises incineration, landfill, composting, waste classification recovery and the like. In the conventional garbage treatment technology, the incineration treatment has the advantages of obvious reduction effect, complete harmless treatment, small occupied area, utilization of waste heat energy, less secondary pollution and the like, and meets the strategic requirements of sustainable development of China.
The most important component of a waste pyrolysis incinerator is the pyrolysis incinerator grate system. The pyrolysis incinerator grate system is mainly responsible for transporting garbage in the thermal reaction tube, improves the mixing and disturbance degree of garbage and air, and achieves scattering through height fall, so that combustion efficiency is improved.
There are many types of incineration grates, particularly reciprocating incineration grates. The grate sheets in the form of reciprocating grate are orderly overlapped like tiles to form a supporting body for pyrolysis combustion of garbage. The movable fire grate segments capable of moving back and forth are alternately arranged with the fixed fire grate segments to generate mutual movement to cause the back and forth movement of garbage. The garbage layer is strongly and continuously turned over and stirred on the reciprocating pushing fire grate plate, so that the garbage layer is repeatedly loosened and rearranged.
At present, chinese garbage has the characteristics of low heat value, high moisture content and the like, and in order to ensure that the outlet temperature of an incinerator is stabilized above 850 ℃, the garbage with high enough content is required to be piled on a fire grate. Therefore, the grate segments are required to be capable of fully turning, agitating and loosening the entire waste material layer in an all-round manner to shorten the drying time and improve the combustion efficiency. Meanwhile, the Chinese household garbage has high water content and complex components, so that the garbage is easy to agglomerate and block during drying and burning. Therefore, the fire grate segments are also required to reduce the possibility of garbage agglomeration and caking, so that garbage in the clusters can be fully contacted with primary air, dried fully and completely combusted, and the burning rate is improved.
Through the development of nearly hundred years, although various traditional structural forms of the fire grate appear, the fire grate is orderly arranged in the transverse direction, and the fire grate is orderly and parallel to move during movement, and the following problems appear in the use process:
1. the head of the single-row fire grate is a neat plane, and the boss or the top surface of the single-row fire grate is a neat plane. In a natural state, the garbage has the same motion state in the transverse direction of the fire grate system, has no relative motion trend, and increases the possibility of garbage agglomeration and caking.
2. When the fire grate moves, the garbage is pushed by a neat plane formed by the heads of the single-row fire grate, so that the garbage in the transverse direction synchronously moves in the longitudinal direction. Therefore, the fire grate sheets only stir and loosen the garbage in the longitudinal direction, the influence on the garbage in the transverse direction is not obvious, and the stirring and loosening effects on the whole garbage layer are not obvious.
3. In addition, as the boss or the top surface of the single-row fire grate is a plane, when the fire grate moves, the garbage does not fall further in the transverse direction, and meanwhile, the fire grate has no extrusion and scattering effects on the garbage in the transverse direction. Therefore, the effect of the fire grate segment on the scattering of the agglomerated garbage is not obvious.
4. The primary air holes formed in the back surfaces of two adjacent fire grate sheets on the same row of fire grate plates are circular, are orderly arranged along the width direction of the primary air holes, and the air outlet direction is orderly parallel air, so that the contact area between the primary air and garbage is reduced, the drying time is prolonged, and the garbage incineration treatment process is slowed down; and the primary air has small disturbance to the flue gas flow field in the hearth.
5. The prior traditional fire grate has more parts and complicated connection mode during installation due to the structure, and fire grate sheets are difficult to install in an experimental device with smaller space, so the fire grate is more suitable for treating large-scale industrial urban garbage.
The prior garbage incinerator is as follows: saw-tooth reciprocating grate bars (CN 201120509663.8), and the problems which are not solved in the grate segments (CN 200720124765.1) capable of loosening garbage by self are solved: the fire bar is more traditional in form and has no obvious effect of crushing and cutting capacity; the parts are more, and the workers are not easy to install.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a waste treatment tube furnace based on a gear-rubbing grate bar set, which can stir, loosen and break up garbage.
The purpose of the invention is realized in the following way:
a waste treatment tube furnace based on a gear rolling fire bar group comprises a working bottom plate, wherein supporting frames are arranged at two longitudinal ends of the working bottom plate, a thermal reaction tube and a heating furnace for heating the thermal reaction tube are arranged between the two supporting frames, two ends of the thermal reaction tube are supported on the supporting frames, the heating furnace is fixed on the working bottom plate, tube orifices at two ends of the thermal reaction tube are sealed through sealing fixed end covers, a feeding port is arranged at the feeding end of the thermal reaction tube, a discharging port is arranged at the discharging end of the thermal reaction tube, a waste hopper is arranged on the working bottom plate, an inlet of the waste hopper is positioned under the discharging port, a fixed cross beam is fixed in the thermal reaction tube, a movable fire bar group and a fixed fire bar group are transversely arranged on the fixed cross beam, each fixed fire bar of the fixed fire bar group is positioned on the fixed cross beam through a set screw, a driving device for driving each movable fire bar to longitudinally move along the working bottom plate is arranged between the fixed fire bars, a motor is fixed on the working bottom plate, the driving device is arranged at one end of the rocking bar, a rocking bar is hinged with a driving end of the rocking bar is hinged to the rocking bar, a driving end of the rocking bar is hinged to the rocking bar, the rocking bar is hinged to the rocking bar, and is hinged to the rocking bar is fixed to the rocking bar, and is connected to the rocking bar is fixed to the rocking bar by the rocking bar, the transition rod is fixedly connected with each movable fire bar.
Preferably, the fixed cross beam is provided with strip screw holes matched with corresponding set screws, and the fixed fire bars are longitudinally positioned and vertically positioned, so that the fixed fire bars can move transversely, mounting plates extending upwards are fixed on two sides of the fixed cross beam, the mounting plates are provided with spring pressing devices for applying transverse pretightening force to the fixed fire bars, and each movable fire bar of the movable fire bar group is alternately arranged between each fixed fire bar and provided with a space moving longitudinally.
Preferably, the spring pressing device comprises a mounting column which is fixed on the mounting plate and extends inwards along the transverse direction, and a compression spring which is used for exerting transverse pretightening force on the fixed furnace bar is sleeved on the mounting column.
Preferably, the movable fire bar and the fixed fire bar are both serrated fire bars, the serrated fire bars comprise a base bar, a plurality of serrated structures are arranged at the upper end of the base bar along the discharging direction, the left side face of the base bar and the left side face of the serrated structures are located on the same vertical face, the right side face of the base bar and the right side face of the serrated structures are located on the same vertical face, the serrated structures comprise a high portion located in front, an inclined portion located behind the high portion and with the rear end inclined downwards, the front end face of the high portion is a pushing surface, the middle of the serrated structures is higher and lower, side inclined surfaces are formed on the two sides of the high portion and the inclined portion, a cutting edge is formed between the high portion and the inclined portion, an aggregate area is formed between adjacent serrated structures, and edges formed by intersecting the pushing surface with the left side face and the right side face of the serrated structures are pushing edges.
Preferably, the cutting edge angle of the high-portion cutting edge is 90 degrees, the cutting edge angle of the inclined-portion cutting edge is 75 degrees, and the material drawing edge and the inclined-portion cutting edge are parallel to each other.
Preferably, the lower parts of the inclined planes at two sides of the inclined part are respectively provided with a vent hole used for being connected with an air source, the vent holes are small in upper part and large in lower part and face the collecting area, and the cross sections of the vent holes are elliptical or rectangular.
Preferably, the fire bar is longitudinally divided into a feeding section, a thermal reaction section and a discharging section, the distribution density of the sawtooth structures of the thermal reaction section is greater than that of the sawtooth structures of the feeding section and the discharging section, and the inclined angle of the inclined cutting edge of the thermal reaction section is greater than that of the inclined cutting edges of the feeding section and the discharging section.
Preferably, a guide groove is formed in one side of the base strip, and a guide boss corresponding to the guide groove is formed in the other side of the base strip.
Preferably, the middle of the aggregate area is higher and the two sides of the aggregate area are lower, so that a tooth-shaped inclined plane is formed in the middle of the aggregate area.
Preferably, the angle of the tooth-shaped inclined surface is 90 °.
By adopting the technical scheme, the invention is mainly used for early-stage experimental tests of drying, pyrolysis and incineration of various municipal domestic wastes, and theoretical practical research on a data test experiment before garbage treatment is carried out, so that the invention is more suitable for teaching experimental research. Can effectively break up the garbage material layer, promote the garbage height of incinerator material layer everywhere to change constantly, aggravate the instability of garbage material layer, be convenient for the garbage cutting, break up, loosen, the stirring is realized the all-round of breaking up, cutting, loosening, stirring of the garbage material layer in the incinerator, has improved the drying, pyrolysis, the combustion efficiency of rubbish, has shortened time and reaction thoroughly.
The invention has the following beneficial effects:
1. by adopting the side inclined surface structure, the furnace bars can effectively stir and loosen the garbage transversely when in reciprocating motion, has the functions of extruding and scattering the garbage, and has obvious scattering effect on the clustered and agglomerated garbage.
2. The cross section of the vent hole is elliptical or rectangular, the upper part is small, the lower part is large, the arrangement mode is irregular, the contact area with garbage is increased, and the drying time is shortened, so that the garbage incineration treatment process is accelerated; and the disturbance to the flue gas flow field in the hearth is larger.
3. Simple structure, simple to operate.
4. Adjacent bars are in relative alternating reciprocating motion, have relative motion trend, can stir, loosen and break up garbage, and reduce the possibility of garbage agglomeration and caking.
Drawings
FIG. 1 is a schematic view of a serrated fire bar;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a schematic view of a saw tooth structure;
FIG. 4 is a schematic cross-sectional view of A-A of FIG. 1;
FIG. 5 is a schematic cross-sectional view of B-B of FIG. 1;
FIG. 6 is a schematic cross-sectional view of C-C of FIG. 1;
FIG. 7 is a schematic cross-sectional view of D-D of FIG. 1;
FIG. 8 is a schematic view of the partial structure at P in FIG. 1;
FIG. 9 is a schematic view of a partial structure at Q of FIG. 1;
FIG. 10 is a schematic view of the structure of the grate bar motion mechanism;
FIG. 11 is a schematic top view of a grate bar motion mechanism;
FIG. 12 is a schematic view of a partial structure of a grate bar motion mechanism;
FIG. 13 is a schematic view of a waste treatment tube furnace based on a gear-rub grate set;
FIG. 14 is a schematic view showing a structure in which the discharge end of the thermal reaction tube is placed obliquely downward;
FIG. 15 is a schematic view showing the structure of the discharge end of the thermal reaction tube arranged obliquely upwards;
FIG. 16 is a schematic view showing a structure in which the thermal reaction tubes are horizontally arranged.
Reference numerals
In the drawing, 1 is a feed inlet, 2 is a sealing element, 3 is a driving rocker, 4 is a driving rocker, 5 is a driving pull rod, 6 is a sealing fixed end cover, 7 is a transition rod, 8 is a fixed cross beam, 9 is a thermal reaction tube, 10 is a fixed furnace bar group, 11 is a discharge port, 12 is a movable furnace bar group, 13 is a vent hole, 14 is a spring pressing device, 15 is a cutting edge, 16 is a collecting area, 17 is a collecting baffle plate, 18 is a pushing surface, 19 is a side inclined surface, 20 is a pushing edge, 21 is a pulling edge, 22 is a left side surface, 23 is a right side surface, 24 is a guide boss, 25 is a guide groove, 26 is a supporting frame, 27 is a working bottom plate, 28 is a waste hopper, 29 is a heating furnace, 30 is a driving motor, 31 is a speed reducer, 32 is an air inlet pipe, and 33 is an air outlet pipe.
Detailed Description
Referring to fig. 13-16, the waste treatment tube furnace based on the gear-rolling grate bar group comprises a working bottom plate, wherein supporting frames are arranged at two longitudinal ends of the working bottom plate, a thermal reaction tube and a heating furnace for heating the thermal reaction tube are arranged between the two supporting frames, two ends of the thermal reaction tube are supported on the supporting frames, and the thermal reaction tube can be of a forward inclined structure, a reverse inclined structure or a horizontal installation structure, so that the pushing movement state is changed. The utility model provides a reaction tube, including work bottom plate, waste bin, speed reducer, driving rocker, actuating lever, actuating motor power connection, the output circumference of speed reducer is fixed in the one end of actuating rocker, the other end of actuating rocker is articulated, actuating lever is articulated, actuating lever is fixed in the end of the heat transitional fixation of reaction tube, the end cover is fixed in the heat transitional fixation of reaction tube.
Referring to fig. 10-12, a bar movement mechanism provided in a thermal reaction tube comprises a fixed beam, a movable bar group and a fixed bar group, in this embodiment, a bar screw hole is provided on the fixed beam to cooperate with a corresponding set screw, so as to perform longitudinal positioning and vertical positioning on the fixed bar, so that the fixed bar can move along a lateral direction. The both sides of fixed crossbeam are fixed with the mounting panel that upwards extends, be equipped with spring closing device on the mounting panel for apply horizontal pretightning force to fixed fire bar, in this embodiment, spring closing device is including fixing the erection column of following horizontal inwards extension on the mounting panel, cup joint the compression spring that is used for applying horizontal pretightning force to fixed fire bar on the erection column. Each movable grate of the movable grate bar group is provided with a space which moves along the longitudinal direction. And aggregate baffle plates for blocking materials are fixed at two ends of the two outermost fixed furnace bars.
Referring to fig. 1-9, the movable furnace bars and the fixed furnace bars are saw-tooth furnace bars, and the furnace bars are integrally made of 310S stainless steel materials. The furnace bar is longitudinally divided into a feeding section, a thermal reaction section and a discharging section, wherein the distribution density of the sawtooth structure of the thermal reaction section is twice that of the sawtooth structure of the feeding section and the discharging section. The left side face of the base strip and the left side face of the sawtooth structure are located on the same vertical face, and the right side face of the base strip and the right side face of the sawtooth structure are located on the same vertical face. One side of the base strip is provided with a guide groove, and the other side of the base strip is provided with a guide boss corresponding to the guide groove.
The sawtooth structure comprises a high part positioned at the front, an inclined part positioned at the rear of the high part and the rear end of the inclined part is inclined downwards, and the front end face of the high part is a pushing surface for pushing materials forwards. The pushing surface is a vertical surface. The sawtooth structure is higher in the middle and lower on two sides, so that side inclined planes are formed on two sides of the high part and the inclined part, and the side inclined planes mainly enable materials piled on the top of the fire bar to slide to the material collecting areas from the left end and the right end of the fire bar, thereby preventing the materials from being piled on the top of the fire bar and being static. The cutting edge is formed in the middle of the high part and the inclined part, and the material can pass through the cutting edge when moving forwards, so that the effect of fully cutting and scattering the material can be achieved. And an aggregate area is formed between adjacent sawtooth structures, edges formed by intersecting the material pushing surface with the left side surface and the right side surface of the sawtooth structures are material pushing edges, and edges formed by intersecting the side inclined surface of the inclined part with the left side surface and the right side surface of the sawtooth structures are material pulling edges. When the fire bar moves forwards and backwards, the material drawing blade can drive part of a small amount of materials to move backwards and be uniformly mixed with new materials.
The cutting edge angle of the high-portion cutting edge is 90 degrees, the cutting edge angle of the inclined-portion cutting edge is 75 degrees, and the material pulling edge and the inclined-portion cutting edge are parallel to each other. The middle of the aggregate area is higher, and the two sides of the aggregate area are lower, so that a tooth-shaped inclined plane is formed in the middle of the aggregate area, and the angle of the tooth-shaped inclined plane is 90 degrees. The oblique angle of the oblique cutting edge of the thermal reaction section is larger than the oblique angles of the oblique cutting edges of the feeding section and the discharging section, and in this embodiment, the oblique angle of the oblique cutting edge of the thermal reaction section is 30 degrees, and the oblique angles of the oblique cutting edges of the feeding section and the discharging section are 12 degrees.
The lower part of both sides inclined plane of inclined part all opens and is used for being connected the air vent with the air supply, the air vent is big-end-down, and towards the district that gathers materials, the air vent can adopt the oval or rectangular column hole of toper. The air source can adopt an external fan, the fan is connected with a vent hole opening at the lower end of the fire bar through a pipeline, gas is introduced into the hearth, the gas is sprayed out from the vent hole, and the gas mainly promotes the full combustion of the material garbage.
The guide bosses of the fire bars are inserted into the guide grooves of the adjacent fire bars in clearance fit, so that the movable fire bars can alternately reciprocate, a space for longitudinally moving is provided, and a driving structure of the movable fire bars can adopt a fire bar driving structure in the prior art, and the description is omitted here. The sawtooth structure of the thermal reaction section stirs, loosens and breaks up the material and has the following characteristics: the cutting and crushing effects are better due to the large cutting inclination angle, so that the materials can be fully reacted in the thermal reaction section.
The garbage drying and burning experiment treatment method comprises the following steps: step 1: weighing domestic garbage, placing the domestic garbage into a feed inlet of a tube furnace, and sealing the feed inlet to prevent the free entry and exit of external atmosphere. Step 2: the furnace is started, a heating furnace is connected, and the thermal reaction tube is preheated to 500-600 ℃. Step 3: and (3) starting a motor power supply, and conveying the garbage into a thermal reaction tube through a grate motion mechanism for drying and burning. Step 4: the reaction temperature of the first stage is controlled, the combustion (sufficient oxygen is introduced) is controlled at 850-900 ℃, the reaction temperature of the second stage is controlled at 850-1000 ℃, the reaction constant temperature is kept for more than 2 seconds, the dioxin residual quantity is reduced, and the heat rate is reduced by 5%.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (8)
1. A waste treatment tubular furnace based on gear-rubbing fire bar groups is characterized in that: comprises a working bottom plate, two longitudinal ends of the working bottom plate are provided with supporting frames, a thermal reaction tube and a heating furnace for heating the thermal reaction tube are arranged between the two supporting frames, two ends of the thermal reaction tube are supported on the supporting frames, the heating furnace is fixed on the working bottom plate, the tube openings at two ends of the thermal reaction tube are sealed through sealing fixed end covers, the feeding end of the thermal reaction tube is provided with a feeding port, the discharging end of the thermal reaction tube is provided with a discharging port, a waste hopper is arranged on the working bottom plate, an inlet of the waste hopper is positioned under the discharging port, a fixed cross beam is fixed in the thermal reaction tube, movable furnace bar groups and fixed furnace bar groups are transversely arranged on the fixed cross beam, each fixed furnace bar of each fixed furnace bar group is positioned on the fixed cross beam through a set screw, each movable furnace bar of each movable furnace bar group is alternately arranged between each fixed furnace bar, the driving device for driving each movable fire bar to move longitudinally is arranged on the working bottom plate, a mounting frame is fixed on the working bottom plate, the driving device comprises a driving motor, a speed reducer, a driving rocker arm, a driving swing rod and a driving pull rod, the input end of the speed reducer is in power connection with the driving motor, the output end of the speed reducer is circumferentially fixed with one end of the driving rocker arm, the other end of the driving rocker arm is hinged with one end of the driving swing rod, the other end of the driving swing rod is hinged with one end of the driving pull rod, the driving pull rod is in clearance fit with a sealing fixed end cover at the inlet end of a thermal reaction tube, the other end of the driving pull rod is positioned in the thermal reaction tube and is fixedly connected with a transition rod transversely arranged along the thermal reaction tube, and the transition rod is fixedly connected with each movable fire bar;
the fixed cross beam is provided with strip screw holes matched with corresponding set screws, and is used for longitudinally positioning and vertically positioning the fixed fire bars, so that the fixed fire bars can move transversely, mounting plates extending upwards are fixed on two sides of the fixed cross beam, the mounting plates are provided with spring pressing devices for applying transverse pre-tightening force to the fixed fire bars, and each movable fire bar of the movable fire bar group is alternately arranged between each fixed fire bar and provided with a space moving longitudinally;
the movable fire bar and the fixed fire bar are both serrated fire bars, the serrated fire bars comprise base bars, a plurality of serrated structures are arranged at the upper ends of the base bars along the discharging direction, the left side face of the base bars and the left side face of the serrated structures are located on the same vertical face, the right side face of the base bars and the right side face of the serrated structures are located on the same vertical face, the serrated structures comprise front high portions, oblique portions, the rear ends of the high portions are inclined downwards, the front end faces of the high portions are pushing surfaces, the middle of the serrated structures are higher and lower in two sides, the two sides of the high portions and the oblique portions form side inclined surfaces, cutting edges are formed between the high portions and the oblique portions, aggregate areas are formed between the adjacent serrated structures, and edges formed by intersecting the pushing surfaces with the left side faces and the right side faces of the serrated structures are pushing edges.
2. The tube furnace for waste treatment based on a set of gear-engaged bars according to claim 1, characterized in that: the spring pressing device comprises a mounting column which is fixed on the mounting plate and extends inwards in the transverse direction, and a compression spring which is used for applying transverse pretightening force to the fixed furnace bar is sleeved on the mounting column.
3. The tube furnace for waste treatment based on a set of gear-engaged bars according to claim 1, characterized in that: the cutting edge angle of the high-portion cutting edge is 90 degrees, the cutting edge angle of the inclined-portion cutting edge is 75 degrees, and the material pulling edge and the inclined-portion cutting edge are parallel to each other.
4. The tube furnace for waste treatment based on a set of gear-engaged bars according to claim 1, characterized in that: the lower parts of the inclined planes at the two sides of the inclined part are respectively provided with a vent hole used for being connected with an air source, the vent holes are small in upper part and large in lower part and face the collecting area, and the cross sections of the vent holes are elliptical or rectangular.
5. The tube furnace for waste treatment based on a set of gear-engaged bars according to claim 1, characterized in that: the fire bar is longitudinally divided into a feeding section, a thermal reaction section and a discharging section, the distribution density of the sawtooth structure of the thermal reaction section is greater than that of the sawtooth structure of the feeding section and the discharging section, and the inclined angle of the inclined cutting edge of the thermal reaction section is greater than that of the inclined cutting edges of the feeding section and the discharging section.
6. The tube furnace for waste treatment based on a set of gear-engaged bars according to claim 1, characterized in that: one side of the base strip is provided with a guide groove, and the other side of the base strip is provided with a guide boss corresponding to the guide groove.
7. The tube furnace for waste treatment based on a set of gear-engaged bars according to claim 1, characterized in that: the middle of the aggregate area is higher, and the two sides of the aggregate area are lower, so that a tooth-shaped inclined plane is formed in the middle of the aggregate area.
8. The tube waste treatment furnace based on a gear-rack set according to claim 7, characterized in that: the angle of the tooth-shaped inclined surface is 90 degrees.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810212317.XA CN108286712B (en) | 2018-03-15 | 2018-03-15 | Waste treatment tube furnace based on gear-rubbing fire bar group |
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| CN201810212317.XA CN108286712B (en) | 2018-03-15 | 2018-03-15 | Waste treatment tube furnace based on gear-rubbing fire bar group |
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| CN108286712A CN108286712A (en) | 2018-07-17 |
| CN108286712B true CN108286712B (en) | 2023-09-22 |
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| CN110686262B (en) * | 2019-10-09 | 2023-12-22 | 科能亚太铸造（武汉）有限公司 | Fire grate for garbage incineration and garbage incineration treatment device |
| CN110925764B (en) * | 2019-12-13 | 2024-03-22 | 重庆科技学院 | Semi-closed type heating waste continuous treatment furnace and process method thereof |
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