CN115264505A - Grate furnace device for household garbage incineration - Google Patents
Grate furnace device for household garbage incineration Download PDFInfo
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- CN115264505A CN115264505A CN202210868111.9A CN202210868111A CN115264505A CN 115264505 A CN115264505 A CN 115264505A CN 202210868111 A CN202210868111 A CN 202210868111A CN 115264505 A CN115264505 A CN 115264505A
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- 239000010813 municipal solid waste Substances 0.000 title claims description 125
- 238000002485 combustion reaction Methods 0.000 claims abstract description 68
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000003546 flue gas Substances 0.000 claims abstract description 63
- 239000000779 smoke Substances 0.000 claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 19
- 210000001503 joint Anatomy 0.000 claims abstract description 3
- 238000005192 partition Methods 0.000 claims description 61
- 239000000463 material Substances 0.000 claims description 38
- 238000005496 tempering Methods 0.000 claims description 34
- 238000001035 drying Methods 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 25
- 239000000428 dust Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000010791 domestic waste Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000004056 waste incineration Methods 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 3
- 239000002956 ash Substances 0.000 description 25
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000007790 scraping Methods 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000012216 screening Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000010009 beating Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000009275 open burning Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Images
Classifications
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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
- F23G5/10—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating electric
-
- 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
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/18—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a stack
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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
-
- 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
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
-
- 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
- F23G5/50—Control or safety arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
Abstract
The grate furnace device comprises a furnace body, wherein a feed inlet is formed in one end of the furnace body, a smoke outlet is formed in the other end of the furnace body, and a slag outlet is formed in the bottom of the furnace body; a microwave tunnel, a combustion hearth and a flue gas secondary combustion channel are sequentially arranged in the furnace body; a feeding device is arranged between the feeding hole of the furnace body and the feeding end of the microwave tunnel; be provided with the ladder grate in the combustion furnace, the ladder grate sets up in microwave tunnel's below, and microwave tunnel's discharge end and the feed end butt joint of ladder grate, the discharge end of ladder grate extend to the slag notch department of furnace body bottom, and flue gas secondary combustion passageway is located the top of ladder grate, and flue gas secondary combustion passageway's one end is linked together with combustion furnace, and the other end is linked together with the exhanst gas outlet of furnace body. The grate furnace device in the application is convenient to use, high in waste incineration efficiency and high in waste reduction degree.
Description
Technical Field
The application relates to the technical field of waste incineration equipment, in particular to a grate furnace device for household garbage incineration.
Background
The domestic waste treatment is important content of city management and environmental protection, is an important mark of social civilization degree, and is vital benefit of people. In recent decades, due to the rapid development of urbanization, domestic garbage is increased rapidly, and particularly under a dual structure system of urban and rural areas, the long-term investment of environmental protection treatment of rural areas and towns is insufficient, the method is particularly remarkable in the areas of the west and the northeast, statistics shows that the harmless treatment rate of domestic garbage built in towns in the areas of the west and the northeast of China is lower than 30%, and in special areas with sparse population, remote positions and the like in the west, limited by economic conditions, population number, transportation conditions, lack of domestic garbage treatment facilities and the like, the targets for realizing garbage reduction, recycling and harmless treatment are different, so that garbage incineration matching technologies and equipment which are researched and popularized to be suitable in the areas are necessary.
For the harmless treatment of domestic garbage in vast rural and urban areas in China, the garbage cannot be treated and recycled by adopting a garbage power generation technology due to the characteristics of dispersed population, long collection and transportation distance, complex composition of the domestic garbage, high water content and low heat value. And the open burning of the domestic garbage or the burning of the small garbage pool is usually incomplete, and the atmospheric environment is seriously polluted.
Disclosure of Invention
In order to improve the convenience of domestic waste incineration and promote msw incineration's high efficiency and rubbish minimizing degree simultaneously, this application provides a grate furnace device for domestic waste incineration.
The application provides a grate furnace device for domestic waste burns adopts following technical scheme:
a grate furnace apparatus for incineration of household garbage, comprising:
the device comprises a furnace body, a feed inlet is formed in one end of the furnace body, a flue gas outlet is formed in the other end of the furnace body, and a slag outlet is formed in the bottom of the furnace body;
a microwave tunnel, a combustion hearth and a smoke secondary combustion channel are sequentially arranged in the furnace body;
a feeding device is arranged between the feeding hole of the furnace body and the feeding end of the microwave tunnel; the furnace body is characterized in that a stepped grate is arranged in the combustion furnace chamber, the stepped grate is arranged below the microwave tunnel, the discharge end of the microwave tunnel is butted with the feed end of the stepped grate, the discharge end of the stepped grate extends to the slag outlet at the bottom of the furnace body, the flue gas secondary combustion channel is positioned above the stepped grate, one end of the flue gas secondary combustion channel is communicated with the combustion furnace chamber, and the other end of the flue gas secondary combustion channel is communicated with the flue gas outlet of the furnace body.
By adopting the technical scheme, the household garbage enters the furnace body from the feeding hole of the furnace body and then enters the microwave tunnel under the auxiliary action of the feeding device, the microwave tunnel has multiple effects of microwave quick drying of the garbage, efficient screening of dry garbage ash and slag and homogenization of the garbage, water molecules in the garbage are continuously converted into positive and negative poles in a magnetic field by utilizing the penetrability of microwave energy, the intermolecular high-frequency friction is used for heating, and water is quickly separated out from the garbage, so that the aims of quick drying and preheating are fulfilled; the water content of the garbage treated by the microwave tunnel is greatly reduced, and the organic matter content is improved, so that the subsequent effective combustion time of the garbage is ensured; the dry household garbage enters the stepped grate to be fully combusted, the multistage incineration effect of the stepped grate is utilized, the household garbage is fully combusted, the residue of organic matters is reduced, and the garbage reduction degree is greatly improved by more thoroughly combusting the household garbage. The ashes that the burning produced are concentrated after passing through the slag notch discharge and are handled, and the flue gas that the burning produced is discharged from the flue gas outlet again after through flue gas postcombustion passageway fully burning, and follow-up accessible flue gas processing system realizes discharge to reach standard after carrying out the deepening and handling.
The high integration of grate furnace device in this application, whole furnace body single-section setting has reduced its length size greatly, and overall structure is compact, and is small, and occupation space is few. The multifunctional gas stove has the dual functions of combustion and burnout, has high working efficiency, is convenient to use, has lower manufacturing cost and use cost, and is convenient to widely popularize and use aiming at vast rural areas and medium and small town areas in China.
Optionally, the feed inlet is vertically arranged, the feed inlet is located at the upper side of the end part of the furnace body, a feed hopper is arranged at the feed inlet of the furnace body, the feed hopper is fixedly connected to the furnace body, and the lower end of the feed hopper is communicated with the upper end of the feed inlet; the feeding device is arranged below the feeding hole.
Through adopting above-mentioned technical scheme, the feeder hopper is connected with material feeding unit, receives into stove rubbish, and garbage truck or conveyor can pour rubbish into the furnace body through the feeder hopper in, and rethread material feeding unit is carried forward, and is accurate high-efficient, convenient operation.
Optionally, the feeding device includes a first driving member, a material pushing plate, and a feeding platform fixedly disposed in the furnace body, the material pushing plate is located between the feeding port and the feeding platform, and a driving shaft of the first driving member is connected to the material pushing plate and can push the material pushing plate to reciprocate on the feeding platform; and the discharge end of the feeding platform is positioned above the feed end of the microwave tunnel.
Through adopting above-mentioned technical scheme, pour rubbish in the feeder hopper on the pay-off platform is gone into under the dead weight effort whereabouts, the scraping wings reciprocating motion under the drive of first driving piece, promote rubbish and get into the microwave tunnel, this in-process scraping wings is simultaneously compaction rubbish step by step on the direction of journey, it is sealed to carry out the shutoff to the rubbish passageway of pay-off platform department, guarantee the negative pressure in the furnace body and stabilize, the open feeding in the past has been changed, the unstable condition of intermittent type negative pressure, thereby be favorable to the emission of flue gas and the stable burning of flame, avoid the entrance to produce the flame projecting phenomenon simultaneously, the security is improved.
Furthermore, the first driving part can be an air cylinder or a hydraulic cylinder, a garbage feeding channel is formed between the feeding platform and the inner wall of the upper side of the furnace body, the material pushing plate can reciprocate in the channel, the material pushing plate can be provided with a connecting plate on one side close to the first driving part, a T-shaped structure is integrally formed, the bottom of the connecting plate is provided with a roller, the roller rolls on the feeding platform, the lower side of the material pushing plate is just in contact with the upper side of the feeding platform or a small gap is formed between the lower side of the material pushing plate and the upper side of the feeding platform, the roller plays a role of conveying with the material pushing belt when the material pushing plate carries out material feeding, the stability and the reliability of the operation of the material pushing plate are improved, and garbage arching is prevented.
Optionally, the feeding platform is horizontally and transversely arranged, a guide block is arranged at the discharge end of the feeding platform, an inclined guide surface is arranged on one side of the guide block, and the guide surface extends from the discharge end of the feeding platform to the feed end of the microwave tunnel.
By adopting the technical scheme, garbage enters the feeding end of the microwave tunnel under the action of the guide surface of the guide block after coming out from the discharging end of the feeding platform, the whole process is stable and reliable, and the generated noise is small.
Optionally, a vertical tempering gate plate is slidably arranged on the furnace body, and a feeding channel is formed between the feeding platform and the inner wall of the furnace body; the tempering gate plate is arranged above the feeding platform, or above the feeding end of the microwave tunnel, or between the feeding platform and the microwave tunnel, and can block the feeding channel.
The lifting movement of the tempering gate plate can be manually controlled, and a driving piece for driving the tempering gate plate to move up and down can be arranged on the furnace body, so that the automatic lifting of the tempering gate plate is realized. By adopting the technical scheme, after the tempering flashboard is additionally arranged, the opening and closing state of the tempering flashboard is controlled, when the tempering flashboard is opened, normal feeding of garbage can be ensured, and when the tempering flashboard is used for closing and blocking a garbage feeding channel, tempering of a system can be prevented; the passage of the waste feed is also sealed in other emergency situations. The tempering gate can be made of a steel skeleton made of castable with the thickness of 200mm, so that the safe operation of equipment is enhanced.
Optionally, the microwave tunnel includes a vibrating screen disposed in the furnace body and a microwave generator fixedly disposed on an inner wall of the furnace body, the vibrating screen is disposed obliquely downward from the feeding device to the stepped grate, a microwave shielding layer is disposed on the inner wall of the furnace body above the vibrating screen, a microwave drying cavity is formed between the vibrating screen and the microwave shielding layer, and the microwave generator can generate heating microwaves in the microwave drying cavity;
a conical receiving hopper is arranged under the vibrating screen on the furnace body; a preheating fresh air supply device and a plurality of first air-adjusting ash scraping openings are arranged below the vibrating screen on the furnace body.
The preheating fresh air supply device can be an exhaust fan or an air suction fan. By adopting the technical scheme, the microwave generator dries the garbage on the vibrating screen by generating microwave energy; the vibrating screen screens ash residues in the garbage through reciprocating motion, the microwave shielding layer can be a metal microwave shielding layer and is used for shielding microwaves and preventing diffusion, and the receiving hopper is used for screening the ash residues and discharging the ash residues; the efficiency of dry rubbish is improved through hot-blast convection current to preheat new trend feeding device.
Furthermore, a vertical partition plate is fixedly arranged in the furnace body, the vertical partition plate is positioned above the discharge end of the microwave tunnel or above the feed end of the stepped grate, the microwave shielding layer is positioned on the inner wall of the furnace body right above the vibrating screen and on the side surface of the vertical partition plate facing one side of the vibrating screen; the microwave generator is fixedly arranged at the bottom of the furnace body, and a microwave emitting part of the microwave generator penetrates through the microwave shielding layer and extends into the microwave drying cavity.
By adopting the technical scheme, the microwave shielding layer emits microwave energy to dry the garbage, so that the microwave generated by the microwave generator is concentrated in the microwave drying cavity above the vibrating screen, and the efficiency and efficiency of microwave drying of the garbage are improved.
Optionally, a dispersing device is further arranged in the microwave drying cavity on the furnace body, and the dispersing device comprises a stirring shaft arranged above the upper end of the vibrating screen and a stirring blade fixedly arranged at the end part of the stirring shaft; the axial direction of the stirring shaft is consistent with the width direction of the vibrating screen; the height position of the stirring blade is positioned between the discharge end of the feeding device and the upper end of the vibrating screen.
The garbage is pressed tightly by the pushing plate on the feeding platform, and by adopting the technical scheme, the garbage entering the microwave tunnel is dispersed by the dispersing device, so that material piling is prevented; the stirring shaft is vertical to the movement direction of the garbage and covers the whole garbage advancing surface, the set height of the stirring shaft can be adjusted according to the density of the garbage and is consistent with the design height of a garbage layer, the garbage entering the furnace can be quickly dispersed and cut, and the material piling is prevented.
Optionally, the stepped grate comprises a first grate section and a second grate section; the first grate segment is in butt joint with the vibrating screen, extends obliquely and downwards along the length direction of the vibrating screen, is positioned below the first grate segment, and is obliquely and downwards arranged from the first grate segment towards the slag outlet at the bottom of the furnace body;
the first grate section and the second grate section respectively comprise a fixed grate and a movable grate which are alternately arranged, all the movable grates of the first grate section are driven by a second driving piece to move in a reciprocating mode, and all the movable grates of the second grate section are driven by a third driving piece to move in a reciprocating mode;
a plurality of second air-adjusting ash-removing openings are arranged below the first grate section and the second grate section on the furnace body;
the vibrating screen is connected with the second driving piece or the movable grate of the first grate section and can reciprocate under the driving of the second driving piece.
By adopting the technical scheme, the combustion hearth is arranged in a single section, and has dual functions of combustion and burnout, the first grate section and the second grate section both comprise a fixed grate and a movable grate, and the movable grate reciprocates to push garbage to move forwards; the air-adjusting ash-raking opening integrates double functions of ventilation and ash removal, and the air-adjusting ash-raking opening is used for supplying oxygen required by garbage combustion during ventilation and is used for conveniently cleaning furnace ash falling during combustion during ash removal. In the application, when the second driving piece drives the first grate segment to act, the vibrating screen is driven to reciprocate at the same time, so that ash in the garbage is screened; adopt first grate segment and the hierarchical burning of second grate segment in this application, its msw incineration is thorough, and incineration efficiency is high, and rubbish minimizing degree is high, and the running cost is low.
Whole ladder grate is the setting of two stages in this application, and rubbish can realize beating, stirring and homogeneity effect from the in-process that first grate section falls into to the second grate section. The first grate section is independently controlled by a second driving piece, the second grate section is independently controlled by a third driving piece, and the second driving piece and the third driving piece can be both hydraulic driving systems; the microwave tunnel and the combustion furnace are both provided with a fresh air supply device and a drive control device independently, and each unit operates independently; the fresh air supply device can also be matched with an air mixing box for regulating and controlling the smoke temperature; the preheating fresh air supply device below the microwave tunnel can be heated through heat exchange of flue gas waste heat.
The ash opening is taken off to the multiunit accent wind in this application, can be as required the air feed in different regions of independent control to the processing speed of regulation and control each part.
Optionally, an inclined partition plate which inclines upwards towards the other end of the furnace body is fixedly arranged on the inner wall of one end, close to the slag outlet, of the furnace body;
a first transverse partition plate and a second transverse partition plate are arranged in the furnace body above the stepped grate at intervals up and down, the first transverse partition plate extends from one end, provided with a flue gas outlet, of the furnace body to the other opposite end, a first partition channel is arranged between the end part of the first transverse partition plate and the inner wall of one end, close to a feed port, of the furnace body, and the flue gas outlet is located between the first transverse partition plate and the top of the furnace body; the second transverse partition plate extends from one end of the furnace body with the feed inlet to the other opposite end, and a second spacing channel is arranged between the end part of the second transverse partition plate and the inner wall of the end with the smoke outlet;
an air inlet is formed between the upper end of the inclined partition plate and the bottom of the second transverse partition plate, and the flue gas secondary combustion channel sequentially comprises a cavity between the second transverse partition plate and the inclined partition plate, a second spacing channel, a cavity between the second transverse partition plate and the first transverse partition plate, a first spacing channel, a first transverse partition plate and a cavity between the tops of the furnace bodies.
By adopting the technical scheme, the secondary flue gas combustion channel is positioned at the upper part of the furnace body, so that the circulation of flue gas is facilitated; the flue gas secondary combustion channel is arranged in a horizontal baffling mode, so that the flue gas flows in an S shape, the secondary combustion process of the flue gas is prolonged, and the structural compactness of the whole furnace body is guaranteed. The complete combustion of the smoke pollutants is realized through the regulation and control of the air supply quantity and the combustion-supporting oil, and the combustion smoke can enter a subsequent smoke treatment system through a smoke outlet and finally reaches the standard to be discharged.
Optionally, a smoke dust cleaning port is formed in one end, provided with a smoke outlet, of the furnace body, and the smoke dust cleaning port is located above the connection position of the inclined partition plate and the furnace body and close to the connection position of the inclined partition plate and the furnace body.
By adopting the technical scheme, the smoke dust ash removing port is positioned at the lowest point of the smoke secondary combustion channel, and the smoke dust ash removing port can be utilized to conveniently clean the smoke secondary combustion channel after the grate furnace device is used for a long time.
Optionally, temperature, pressure and oxygen sensors are arranged at the microwave tunnel, the combustion hearth and the outlet and inlet of the flue gas secondary combustion channel.
Through adopting above-mentioned technical scheme for implement the operating mode monitoring to the use of grate furnace device, in time correspond the adjustment and burn time, burn temperature, intake isoparametric, improve the msw incineration effect, and guarantee the security.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the grate furnace device in this application is highly integrated, and whole furnace body single-section sets up, and the flue gas postcombustion passageway is horizontal baffling and arranges in combustion furnace's top, has reduced its length size greatly, and overall structure is compact, and is small, and occupation space is few.
2. The grate furnace device has the dual functions of combustion and burnout, is high in working efficiency, convenient to use, low in manufacturing cost and use cost, and convenient to widely popularize and use in vast rural areas and medium and small town areas in China.
3. The grate furnace device in this application through improve material feeding unit, to burning furnace chamber structural adjustment, set up microwave drying, add dispersion devices etc. and solved because of the problem that rubbish drying efficiency is low, inorganic matter content is big influences follow-up incineration efficiency, shorten dry stroke simultaneously, prevent the system's tempering, realized that functional and economic nature are unified.
4. Grate furnace device in this application prolongs feeding platform along the horizontal direction, rubbish forms sealedly to the passageway of rubbish feeding under the effect of scraping wings, in order to ensure the furnace negative pressure that burns, it opens the feeding to have changed burning furnace in the past, the unstable condition of intermittent type negative pressure, thereby be favorable to the emission of flue gas and the stable burning of flame, avoid the entrance to produce simultaneously and spout the fire phenomenon, in addition still through setting up the tempering flashboard, effectively prevent the system tempering, the safety and stability nature of whole device has been improved.
5. The grate furnace device introduces a microwave drying technology, strengthens garbage dehydration and drying, shortens the drying stroke and improves the combustion efficiency; and a high-temperature-resistant microwave shielding layer is further additionally arranged, so that the effective drying efficiency of the microwaves is improved.
6. The grate furnace device is provided with the dispersing device, and has double effects of cutting and stirring; the stepped grate can also realize beating, stirring and homogenizing effects in the garbage moving process, thereby being beneficial to full combustion of garbage.
7. Through set up vibrating screen in the microwave drying stage in this application, realize inorganic component lime-ash screening to promote organic component and account for than, improved incineration efficiency.
Drawings
Fig. 1 is a schematic view of the internal structure of a grate furnace apparatus in the present application.
Fig. 2 is a schematic diagram of a partial enlarged structure in fig. 1.
Fig. 3 is a schematic diagram of a partially enlarged structure in fig. 1.
In the figure, 1, a furnace body; 11. a feed inlet; 12. a flue gas outlet; 13. a slag outlet; 14. a first air-adjusting ash scraping port; 15. a second air adjusting ash scraping port; 16. a soot cleaning port; 1a, a vertical clapboard; 1b, inclined partition plates; 1c, a first transverse partition plate; 1d, a second transverse clapboard;
2. a microwave tunnel; 2a, a microwave drying cavity; 21. vibrating the screen; 22. a microwave generator; 23. a microwave shielding layer; 24. a receiving hopper;
3. a combustion furnace chamber;
4. a flue gas secondary combustion channel;
5. a feeding device; 51. a first driving member; 52. a material pushing plate; 53. a feeding platform; 54. a guide block; 54a, a guide surface; 55. a connecting plate; 56. a roller;
6. a stepped grate; 61. a first grate section; 62. a second grate section; 63. fixing a grate; 64. a moving grate; 65. a second driving member; 66. a third driving member;
7. a feed hopper;
8. a tempering gate plate;
9. a dispersing device; 91. a stirring shaft; 92. a stirring blade.
Detailed Description
The present application is described in further detail below with reference to fig. 1-3.
In vast rural areas and small and medium-sized towns in the areas of the Chinese and western regions, the generated household garbage has the characteristics of complex components, high water content, low heat value and the like due to dispersed population and long collection and transportation distance, and cannot be treated and recycled by adopting a garbage power generation technology. The open burning or the burning in a small garbage pool is usually incomplete and seriously pollutes the atmospheric environment; in addition, some existing large-scale waste incineration equipment in the market generally has the characteristics of complex structure, high manufacturing cost and high use cost, and the factors seriously restrict the harmless treatment of domestic waste in vast rural areas, small and medium-sized towns in China. The gap is filled up by the medium and small-sized domestic garbage microwave synergistic efficient incinerator grate device provided by the application.
Referring to fig. 1, the grate furnace device for incinerating household garbage comprises a furnace body 1, wherein one end of the furnace body 1 is provided with a feed inlet 11, the other end of the furnace body 1 is provided with a flue gas outlet 12, and the bottom of the furnace body 1 is provided with a slag outlet 13; a microwave tunnel 2, a combustion hearth 3 and a flue gas secondary combustion channel 4 are sequentially arranged in the furnace body 1; a feeding device 5 is arranged between the feeding hole 11 of the furnace body 1 and the feeding end of the microwave tunnel 2; the stepped grate 6 is arranged in the combustion hearth 3, the stepped grate 6 is arranged below the microwave tunnel 2, the discharge end of the microwave tunnel 2 is butted with the feed end of the stepped grate 6, the discharge end of the stepped grate 6 extends to a slag outlet 13 at the bottom of the furnace body 1, the flue gas secondary combustion channel 4 is positioned above the stepped grate 6, one end of the flue gas secondary combustion channel 4 is communicated with the combustion hearth 3, and the other end of the flue gas secondary combustion channel is communicated with a flue gas outlet 12 of the furnace body 1.
Referring to fig. 2, the feed inlet 11 is vertically arranged, the feed inlet 11 is positioned at the upper side of the end part of the furnace body 1, a feed hopper 7 is arranged at the feed inlet 11 of the furnace body 1, the feed hopper 7 is fixedly connected to the furnace body 1, and the lower end of the feed hopper 7 is communicated with the upper end of the feed inlet 11; the feeding device 5 is arranged below the feeding hole 11, the feeding hopper 7 is connected with the feeding device 5 and used for receiving garbage entering the furnace, the garbage truck or the conveying device can pour the garbage into the furnace body 1 through the feeding hopper 7, and the garbage is conveyed forwards through the feeding device 5, so that the garbage can be accurately and efficiently operated. The feeding device 5 comprises a first driving member 51, a material pushing plate 52 and a feeding platform 53 fixedly arranged in the furnace body 1, the first driving member 51 can be a cylinder or a hydraulic cylinder, the material pushing plate 52 is positioned between the feeding port 11 and the feeding platform 53, and a driving shaft of the first driving member 51 is connected with the material pushing plate 52 and can push the material pushing plate 52 to reciprocate on the feeding platform 53; a garbage feeding channel is formed between the feeding platform 53 and the inner wall of the upper side of the furnace body 1, the material pushing plate 52 reciprocates in the channel, the material pushing plate 52 can be provided with a connecting plate 55 at one side close to the first driving part 51 to form a T-shaped structure integrally, the bottom of the connecting plate 55 is provided with a roller 56, the roller 56 rolls on the feeding platform 53, the lower side of the material pushing plate 52 is just contacted with the upper side surface of the feeding platform 53 or a small gap is formed between the lower side of the material pushing plate 52 and the upper side surface of the feeding platform 53, the roller 56 plays a role of carrying and conveying the material pushing plate 52 when the material pushing plate 52 feeds the materials, the stability and the reliability of the operation of the material pushing plate 52 are improved, and the garbage is prevented from arching; the discharge end of the feeding platform 53 is positioned above the feed end of the microwave tunnel 2; the feeding platform 53 is horizontally and transversely arranged, a guide block 54 is arranged at the discharging end of the feeding platform 53, an inclined guide surface 54a is arranged on one side of the guide block 54, and the guide surface 54a extends from the discharging end of the feeding platform 53 to the feeding end of the microwave tunnel 2; garbage poured into the feeding hopper 7 falls onto the feeding platform 53 under the action of self-weight acting force, the material pushing plate 52 moves in a reciprocating mode under the driving of the first driving piece 51 to push the garbage to enter the microwave tunnel 2, and the garbage enters the feeding end of the microwave tunnel 2 under the action of the guide surface 54a of the guide block 54 after coming out of the discharging end of the feeding platform 53, so that the whole process is stable and reliable, and the generated noise is small. Meanwhile, the pushing plate 52 compacts the garbage step by step along the stroke direction, the garbage channel at the feeding platform 53 is sealed, the stability of negative pressure in the furnace body 1 is ensured, the conditions of open feeding and unstable intermittent negative pressure in the prior art are changed, the discharge of smoke and the stable combustion of flame are facilitated, the fire spraying phenomenon at the inlet is avoided, and the safety is improved.
Referring to fig. 2, a vertical tempering gate 8 is slidably arranged on the furnace body 1, and a feeding channel is formed between the feeding platform 53 and the inner wall of the furnace body 1; the tempering gate plate 8 is arranged above the feeding platform 53, or the tempering gate plate 8 is arranged above the feeding end of the microwave tunnel 2, or the tempering gate plate 8 is arranged between the feeding platform 53 and the microwave tunnel 2, and the tempering gate plate 8 can block the feeding channel. The lifting movement of the tempering gate plate 8 can be manually controlled, and a driving piece for driving the tempering gate plate 8 to move up and down can also be arranged on the furnace body 1, so that the automatic lifting is realized. After the tempering flashboard 8 is additionally arranged, the opening and closing state of the tempering flashboard 8 is controlled, when the tempering flashboard 8 is opened, normal feeding of garbage can be ensured, and when a garbage feeding channel is closed and blocked by the tempering flashboard 8, tempering of a system can be prevented; the passage of the refuse feed is also sealed in other emergency situations. The tempering gate 8 can be made of a steel skeleton made of castable with the thickness of 200mm, so that the safe operation of equipment is enhanced.
Referring to fig. 1 and 2, the microwave tunnel 2 includes a vibrating screen 21 disposed in the furnace body 1 and a microwave generator 22 fixedly disposed on the inner wall of the furnace body 1, the vibrating screen 21 is disposed obliquely downward from the feeding device 5 to the stepped grate 6, a microwave shielding layer 23 is disposed on the inner wall of the furnace body 1 above the vibrating screen 21, a microwave drying cavity 2a is formed between the vibrating screen 21 and the microwave shielding layer 23, and the microwave generator 22 can generate heating microwaves in the microwave drying cavity 2 a; a conical receiving hopper 24 is arranged under the vibrating screen 21 on the furnace body 1; a preheating fresh air supply device and a plurality of first air-adjusting ash-raking openings 14 are arranged below the vibrating screen 21 on the furnace body 1; the preheating fresh air supply device can be an exhaust fan or an air suction fan. The microwave generator 22 dries the garbage on the vibration screen 21 by generating microwave energy; the vibrating screen 21 screens ash in the garbage through reciprocating motion, the microwave shielding layer 23 can be a metal microwave shielding layer 23 and is used for shielding microwaves and preventing diffusion, and the microwaves generated by the microwave generator 22 directly act on the garbage or act on the garbage under the reflection action of the microwave shielding layer 23, so that the moisture of the garbage is quickly removed from inside to outside; the receiving hopper 24 is used for screening ash discharge; the preheating fresh air supply device improves the efficiency of drying the garbage through hot air convection. Further, a vertical partition plate 1a is fixedly arranged in the furnace body 1, the vertical partition plate 1a is positioned above the discharge end of the microwave tunnel 2 or above the feed end of the stepped grate 6, and the microwave shielding layer 23 is positioned on the inner wall of the furnace body 1 right above the vibrating screen 21 and on the side surface of the vertical partition plate 1a facing one side of the vibrating screen 21; the microwave generator 22 is fixedly arranged at the bottom of the furnace body 1, and a microwave emitting part of the microwave generator 22 penetrates through the microwave shielding layer 23 and extends into the microwave drying cavity 2 a; the microwave shielding layer 23 emits microwave energy to dry the garbage, so that the microwave generated by the microwave generator 22 is concentrated in the microwave drying cavity 2a above the vibrating screen 21, and the efficiency and efficiency of microwave drying of the garbage are improved.
Referring to fig. 1 and 2, a dispersing device 9 is further disposed in the microwave drying chamber 2a of the oven body 1, and the dispersing device 9 includes a stirring shaft 91 disposed above the upper end of the vibrating screen 21 and a stirring blade 92 fixedly disposed at the end of the stirring shaft 91; the axial direction of the stirring shaft 91 is consistent with the width direction of the vibrating screen 21; the height position of the stirring blade 92 is located between the discharge end of the feeding device 5 and the upper end of the vibrating screen 21. The garbage is pressed tightly by the material pushing plate 52 on the feeding platform 53, and the dispersing device 9 is used for dispersing the garbage entering the microwave tunnel 2 to prevent stacking; the stirring shaft 91 is vertical to the movement direction of the garbage and covers the whole garbage advancing surface, the set height of the stirring shaft 91 can be adjusted according to the density of the garbage and is consistent with the design height of a garbage material layer, the garbage entering the furnace is rapidly dispersed and cut, and the material piling is prevented.
Referring to fig. 3, the stepped grate 6 includes a first grate section 61 and a second grate section 62; the first grate section 61 is butted with the vibrating screen 21, the first grate section 61 extends obliquely downwards along the length direction of the vibrating screen 21, the second grate section 62 is positioned below the first grate section 61, and the second grate section 62 is obliquely downwards arranged from the first grate section 61 towards the slag outlet 13 at the bottom of the furnace body 1; the first grate section 61 and the second grate section 62 respectively comprise fixed grates 63 and movable grates 64 which are alternately arranged, all the movable grates 64 of the first grate section 61 are driven to reciprocate by a second driving piece 65, and all the movable grates 64 of the second grate section 62 are driven to reciprocate by a third driving piece 66; a plurality of second air-adjusting ash-removing openings 15 are arranged below the first grate section 61 and the second grate section 62 on the furnace body 1; the vibrating screen 21 is connected with the second driving member 65 or the movable grate 64 of the first grate section 61 and can reciprocate under the driving of the second driving member 65. The combustion furnace 3 in the application is arranged in a single section and has dual functions of combustion and burnout, the first fire grate section 61 and the second fire grate section 62 both comprise a fixed fire grate 63 and a movable fire grate 64, and the movable fire grate 64 reciprocates to push garbage to move forwards; the second air-adjusting ash-raking port 15 integrates double functions of ventilation and ash removal, and the second air-adjusting ash-raking port 15 is used for supplying oxygen required by garbage combustion during ventilation and conveniently cleaning furnace ash falling during ash removal. In the application, when the second driving part 65 drives the first grate segment 61 to act, the vibrating screen 21 is driven to reciprocate at the same time, so that ash in the garbage is screened; adopt first grate section 61 and second grate section 62 hierarchical burning in this application, its waste incineration is thorough, and it is efficient to burn, and the waste reduction degree is high, and the running cost is low.
Referring to fig. 1, an inclined partition plate 1b inclined upwards towards the other end of the furnace body 1 is fixedly arranged on the inner wall of one end of the furnace body 1 close to the slag outlet 13; a first transverse partition plate 1c and a second transverse partition plate 1d are arranged in the furnace body 1 above the stepped fire grate 6 at intervals up and down, the first transverse partition plate 1c extends from one end of the furnace body 1 with a flue gas outlet 12 to the other opposite end, a first partition channel is arranged between the end part of the first transverse partition plate 1c and the inner wall of one end of the furnace body 1 close to the feed inlet 11, and the flue gas outlet 12 is arranged between the first transverse partition plate 1c and the top of the furnace body 1; a second transverse partition plate 1d extends from one end of the furnace body 1 with the feed inlet 11 to the other opposite end, and a second spacing channel is arranged between the end part of the second transverse partition plate 1d and the inner wall of one end with the flue gas outlet 12; an air inlet is formed between the upper end of the inclined partition plate 1b and the bottom of the second transverse partition plate 1d, and the flue gas secondary combustion channel 4 sequentially comprises a cavity between the second transverse partition plate 1d and the inclined partition plate 1b, a second spacing channel, a cavity between the second transverse partition plate 1d and the first transverse partition plate 1c, a first spacing channel and a cavity between the first transverse partition plate 1c and the top of the furnace body 1; the secondary combustion channel is communicated with the combustion hearth 3 and is positioned at the top of the combustion hearth 3, so that the circulation of flue gas is facilitated; the flue gas secondary combustion channel 4 is arranged in a horizontal baffling manner, so that the flue gas flows in an S shape, the flue gas secondary combustion process is prolonged, and the structural compactness of the whole furnace body 1 is ensured. The air inlet is provided with a secondary air inlet and a combustion-supporting oil spray gun, so that the flue gas can be completely combusted at 1000-1100 ℃, and the flue gas pollutants can be completely combusted by regulating and controlling the air supply quantity and the combustion-supporting oil; the flue gas outlet 12 is positioned at the highest point of the tail end of the secondary combustion channel, is connected with a subsequent flue gas treatment system and finally reaches the standard to be discharged; the one end that furnace body 1 has flue gas outlet 12 has seted up smoke and dust deashing mouth 16, and smoke and dust deashing mouth 16 is located the top of slope baffle 1b and furnace body 1 junction and is close to the junction of slope baffle 1b and furnace body 1, and smoke and dust deashing mouth 16 is located the minimum of flue gas postcombustion passageway 4, uses this grate furnace device for a long time, can utilize smoke and dust deashing mouth 16 convenient to carry out clearance and system maintenance to flue gas postcombustion passageway 4.
All set up temperature, pressure and oxygen sensor at microwave tunnel 2, combustion furnace 3 and 4 access & exits of flue gas postcombustion passageway in this application for implement the operating mode monitoring to the use of grate device, in time correspond adjustment burning time, burn temperature, intake isoparametric, improve the msw incineration effect, and guarantee the security.
The implementation principle is as follows: the household garbage enters the furnace body 1 from a feeding hole 11 of the furnace body 1 and then enters the microwave tunnel 2 under the auxiliary action of the feeding device 5, the microwave tunnel 2 has multiple effects of microwave quick drying of the garbage, efficient screening of dry garbage ash and slag and garbage homogenization, water molecules in the garbage are continuously converted into positive and negative poles in a magnetic field by using the penetrability of microwave energy, the intermolecular high-frequency friction is used for heating, and water is quickly separated out from the garbage, so that the aims of quick drying and preheating are fulfilled; the moisture content of the garbage treated by the microwave tunnel 2 is greatly reduced, and the content of organic matters is improved, so that the subsequent effective combustion time of the garbage is ensured; the dried household garbage enters the stepped grate 6 to be fully combusted, and the multistage incineration function of the stepped grate 6 is utilized, so that the household garbage is fully combusted, the residue of organic matters is reduced, and the garbage reduction degree is greatly improved by more thoroughly combusting the household garbage. The ashes that the burning produced are concentrated processing after discharging through slag notch 13, and the flue gas that the burning produced is discharged from exhanst gas outlet 12 again after fully burning through flue gas postcombustion passageway 4, and follow-up accessible flue gas processing system realizes discharge to reach standard after carrying out the deepening and handling.
According to the grate furnace device, aiming at the characteristics of high water content, low heat value and complex components of the household garbage, the garbage is crushed and homogenized by increasing garbage disturbance, adjusting the grate structure, increasing the dispersing device 9 and the like, so that the incineration efficiency is improved; the operation and the oxygen supply of the grate in each stage are independently controlled, the oxygen supply amount and the travelling speed of the grate are adjustable, and the controllability of the system is stronger. The heat absorption process of the waste incineration preheating drying section is the primary factor of ignition, the water content, the evaporation rate and the organic matter content of the waste determine the effective combustion time of the waste, so that the treatment function and efficiency of the waste drying section are enhanced, the stroke of the drying section can be effectively shortened by increasing the waste drying rate and increasing the organic matter content, and the grate incineration efficiency is improved; meanwhile, the problems of micro negative pressure and tempering in the waste incineration process are always the key points of system operation. The system optimization upgrading is carried out aiming at the point positions, and the strengthening drying and the stable operation of the system are realized.
The grate furnace device in the application is mainly used for harmless treatment of domestic garbage in vast rural areas and small and medium-sized towns in China, and solves the problem that the domestic garbage in the vast rural areas and towns in the western areas of China cannot be treated in time for a long time due to dispersed population living and long collecting and transporting distance. The high integration of grate furnace device in this application, 1 single-section setting of whole furnace body has reduced its length size greatly, and overall structure is compact, and is small, and occupation space is few. The double-function combustion and burnout device has the advantages of double functions of combustion and burnout, high working efficiency, convenient use, lower manufacturing cost and use cost, and convenient vigorous popularization and use for vast rural areas and medium and small town areas in China.
The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A grate apparatus for incineration of household waste, comprising:
the device comprises a furnace body (1), wherein a feed inlet (11) is formed in one end of the furnace body (1), a flue gas outlet (12) is formed in the other end of the furnace body (1), and a slag outlet (13) is formed in the bottom of the furnace body (1);
the furnace is characterized in that a microwave tunnel (2), a combustion hearth (3) and a flue gas secondary combustion channel (4) are sequentially arranged in the furnace body (1);
a feeding device (5) is arranged between the feeding hole (11) of the furnace body (1) and the feeding end of the microwave tunnel (2); the improved microwave oven is characterized in that a stepped grate (6) is arranged in the combustion hearth (3), the stepped grate (6) is arranged below the microwave tunnel (2), the discharge end of the microwave tunnel (2) is in butt joint with the feed end of the stepped grate (6), the discharge end of the stepped grate (6) extends to a slag outlet (13) at the bottom of the oven body (1), the flue gas secondary combustion channel (4) is located above the stepped grate (6), one end of the flue gas secondary combustion channel (4) is communicated with the combustion hearth (3), and the other end of the flue gas secondary combustion channel is communicated with a flue gas outlet (12) of the oven body (1).
2. The grate furnace device for incinerating household garbage according to claim 1, wherein the feed inlet (11) is vertically arranged, the feed inlet (11) is positioned at the upper side of the end part of the furnace body (1), a feed hopper (7) is arranged at the feed inlet (11) of the furnace body (1), the feed hopper (7) is fixedly connected to the furnace body (1), and the lower end of the feed hopper (7) is communicated with the upper end of the feed inlet (11); the feeding device (5) is arranged below the feeding hole (11).
3. The fire grate device for incinerating domestic garbage according to claim 1 or 2, wherein the feeding device (5) comprises a first driving member (51), a material pushing plate (52) and a feeding platform (53) fixedly arranged in the furnace body (1), the material pushing plate (52) is positioned between the feeding port (11) and the feeding platform (53), and a driving shaft of the first driving member (51) is connected with the material pushing plate (52) and can push the material pushing plate (52) to reciprocate on the feeding platform (53); and the discharge end of the feeding platform (53) is positioned above the feed end of the microwave tunnel (2).
4. The fire grate device for incineration of household refuse according to claim 3, characterized in that the feeding platform (53) is horizontally and transversely arranged, a guide block (54) is arranged at the discharge end of the feeding platform (53), one side of the guide block (54) has an inclined guide surface (54 a), and the guide surface (54 a) extends from the discharge end of the feeding platform (53) to the feed end of the microwave tunnel (2).
5. The grate furnace device for the incineration of household garbage according to claim 3, characterized in that a vertical tempering gate (8) is slidably arranged on the furnace body (1), and a feeding channel is formed between the feeding platform (53) and the inner wall of the furnace body (1); the tempering gate plate (8) is arranged above the feeding platform (53), or the tempering gate plate (8) is arranged above the feeding end of the microwave tunnel (2), or the tempering gate plate (8) is arranged between the feeding platform (53) and the microwave tunnel (2), and the tempering gate plate (8) can block the feeding channel.
6. The grate furnace device for the incineration of household garbage according to claim 1 or 2, wherein the microwave tunnel (2) comprises a vibrating screen (21) arranged in the furnace body (1) and a microwave generator (22) fixedly arranged on the inner wall of the furnace body (1), the vibrating screen (21) is arranged obliquely downwards from the feeding device (5) to the stepped grate (6), a microwave shielding layer (23) is arranged on the inner wall of the furnace body (1) above the vibrating screen (21), a microwave drying cavity (2 a) is formed between the vibrating screen (21) and the microwave shielding layer (23), and the microwave generator (22) can generate heating microwaves in the microwave drying cavity (2 a);
a conical receiving hopper (24) is arranged under the vibrating screen (21) on the furnace body (1); a preheating fresh air supply device and a plurality of first air-adjusting ash-removing openings (14) are arranged below the vibrating screen (21) on the furnace body (1).
7. The fire grate device for the incineration of household garbage according to claim 6, characterized in that a dispersion device (9) is further provided on the furnace body (1) in the microwave drying chamber (2 a), the dispersion device (9) comprises a stirring shaft (91) disposed above the upper end of the vibrating screen (21) and a stirring blade (92) fixed at the end of the stirring shaft (91); the axial direction of the stirring shaft (91) is consistent with the width direction of the vibrating screen (21); the height position of the stirring blade (92) is positioned between the discharge end of the feeding device (5) and the upper end of the vibrating screen (21).
8. The grate arrangement for incineration of household waste according to claim 6, characterized in that the stepped grate (6) comprises a first grate section (61) and a second grate section (62); the first grate section (61) is butted with the vibrating screen (21), the first grate section (61) extends obliquely downwards along the length direction of the vibrating screen (21), the second grate section (62) is positioned below the first grate section (61), and the second grate section (62) is obliquely downwards arranged from the first grate section (61) towards the slag outlet (13) at the bottom of the furnace body (1);
the first grate section (61) and the second grate section (62) respectively comprise a fixed grate (63) and a movable grate (64) which are alternately arranged, all the movable grates (64) of the first grate section (61) are driven to reciprocate by a second driving piece (65), and all the movable grates (64) of the second grate section (62) are driven to reciprocate by a third driving piece (66);
a plurality of second air-adjusting ash-raking openings (15) are arranged below the first grate section (61) and the second grate section (62) on the furnace body (1);
the vibrating screen (21) is connected with the second driving piece (65) or the movable grate (64) of the first grate section (61) and can reciprocate under the driving of the second driving piece (65).
9. The grate device for incinerating household garbage according to claim 1 or 2, wherein an inclined partition plate (1 b) which inclines upwards towards the other end of the furnace body (1) is fixedly arranged on the inner wall of one end of the furnace body (1) close to the slag outlet (13);
a first transverse partition plate (1 c) and a second transverse partition plate (1 d) are arranged in the furnace body (1) above the stepped grate (6) at intervals up and down, the first transverse partition plate (1 c) extends from one end, provided with a flue gas outlet (12), of the furnace body (1) to the other opposite end, a first partition channel is arranged between the end part of the first transverse partition plate (1 c) and the inner wall of one end, close to the feed inlet (11), of the furnace body (1), and the flue gas outlet (12) is located between the first transverse partition plate (1 c) and the top of the furnace body (1); the second transverse partition plate (1 d) extends from one end, provided with the feed inlet (11), of the furnace body (1) to the other opposite end, and a second partition channel is arranged between the end part of the second transverse partition plate (1 d) and the inner wall of one end, provided with the smoke outlet (12);
the upper end of the inclined partition plate (1 b) and the bottom of the second transverse partition plate (1 d) form an air inlet, the flue gas secondary combustion channel (4) sequentially comprises a cavity between the second transverse partition plate (1 d) and the inclined partition plate (1 b), a second spacing channel, a cavity between the second transverse partition plate (1 d) and the first transverse partition plate (1 c), a first spacing channel, the first transverse partition plate (1 c) and the cavity between the top of the furnace body (1).
10. The grate furnace device for the incineration of household garbage according to claim 9, characterized in that the end of the furnace body (1) having the flue gas outlet (12) is opened with a smoke and dust cleaning port (16), and the smoke and dust cleaning port (16) is located above the connection of the inclined partition plate (1 b) and the furnace body (1) and close to the connection of the inclined partition plate (1 b) and the furnace body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210868111.9A CN115264505A (en) | 2022-07-21 | 2022-07-21 | Grate furnace device for household garbage incineration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210868111.9A CN115264505A (en) | 2022-07-21 | 2022-07-21 | Grate furnace device for household garbage incineration |
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| Publication Number | Publication Date |
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| CN115264505A true CN115264505A (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210868111.9A Pending CN115264505A (en) | 2022-07-21 | 2022-07-21 | Grate furnace device for household garbage incineration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117490073A (en) * | 2023-11-09 | 2024-02-02 | 德阳劲达节能科技有限责任公司 | Refuse incinerator |
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| GB748981A (en) * | 1953-01-10 | 1956-05-16 | Josef Martin | An improved apparatus for the incineration of domestic refuse |
| JPH0926122A (en) * | 1995-07-12 | 1997-01-28 | Nippon Sharyo Seizo Kaisha Ltd | Stoker type refuse incinerator |
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| CN112460605A (en) * | 2020-12-02 | 2021-03-09 | 北京基亚特环保科技有限公司 | High-temperature incineration equipment for forward flow type mechanical grate furnace |
| CN214120074U (en) * | 2020-12-29 | 2021-09-03 | 天津聚润鑫环保科技有限公司 | Medical waste microwave carbonization innocent treatment equipment |
| CN113574320A (en) * | 2019-03-15 | 2021-10-29 | 日立造船株式会社 | Incinerator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB748981A (en) * | 1953-01-10 | 1956-05-16 | Josef Martin | An improved apparatus for the incineration of domestic refuse |
| JPH0926122A (en) * | 1995-07-12 | 1997-01-28 | Nippon Sharyo Seizo Kaisha Ltd | Stoker type refuse incinerator |
| CN208853439U (en) * | 2018-08-01 | 2019-05-14 | 泸州市聚源电力设备有限公司 | Garbage decomposition equipment |
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| CN112460605A (en) * | 2020-12-02 | 2021-03-09 | 北京基亚特环保科技有限公司 | High-temperature incineration equipment for forward flow type mechanical grate furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117490073A (en) * | 2023-11-09 | 2024-02-02 | 德阳劲达节能科技有限责任公司 | Refuse incinerator |
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