CN112833428A - Civil biomass briquette and particle dual-purpose cooking and baking stove - Google Patents
Civil biomass briquette and particle dual-purpose cooking and baking stove Download PDFInfo
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- CN112833428A CN112833428A CN202110090519.3A CN202110090519A CN112833428A CN 112833428 A CN112833428 A CN 112833428A CN 202110090519 A CN202110090519 A CN 202110090519A CN 112833428 A CN112833428 A CN 112833428A
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- combustion
- fixed carbon
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- stove
- feeding
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- 239000002028 Biomass Substances 0.000 title claims abstract description 44
- 238000010411 cooking Methods 0.000 title claims abstract description 43
- 239000002245 particle Substances 0.000 title claims abstract description 17
- 239000004484 Briquette Substances 0.000 title claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 260
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 113
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 113
- 239000000446 fuel Substances 0.000 claims abstract description 41
- 238000002309 gasification Methods 0.000 claims abstract description 40
- 239000000779 smoke Substances 0.000 claims abstract description 33
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract 3
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 2
- 239000008187 granular material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 8
- 239000003517 fume Substances 0.000 description 8
- 239000002893 slag Substances 0.000 description 7
- 239000000571 coke Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- -1 branches Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/28—Combined installations of stoves or ranges, e.g. back-to-back stoves with a common fire-box
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
-
- 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
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
-
- 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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention discloses a civil biomass briquette and particle dual-purpose cooking and baking stove which comprises a feeding part, a heating part and a discharging part, wherein the feeding part is used for storing biomass fuel and supplying the fuel to a fixed carbon combustion deslagging part; the fixed carbon combustion deslagging part is used for completing feeding gear adjustment, preheating, gasification, fixed carbon combustion and ash collection of biomass fuel, grate deslagging and primary air adjustment; a secondary gasification combustion part for sufficiently combusting volatile components generated by the fixed carbon combustion deslagging part; the cooking smoke exhaust part is positioned at the top end of the secondary gasification combustion part and is used for connecting a chimney to exhaust combustion smoke; the feeding part, the fixed carbon combustion deslagging part, the secondary gasification combustion part and the cooking smoke exhaust part are communicated in sequence. The invention has multi-fuel applicability and wide fuel applicability; the combustion power controllability effect is better; and the combustion is more complete due to the subarea gasification and secondary air distribution preheating.
Description
Technical Field
The invention relates to a civil biomass briquette and particle dual-purpose cooking and baking stove, and belongs to the technical field of biomass stoves.
Background
In recent years, along with the requirements of new rural construction and energy conservation and environmental protection, the development and utilization of biomass stoves have become more and more important to people and are gradually popularized and applied.
At present, biomass stoves on the market generally comprise a stove body and a stove inner container arranged in the stove body, biomass fuel is combusted in the stove inner container to generate heat, and the stove is warmed in a radiation heat dissipation mode, but the biomass stoves have the following problems:
1. the existing stove has a single structure, one stove can only adapt to one biomass fuel, the biomass fuel has poor applicability and narrow selectivity;
2. the feeding quantity can not be adjusted, the quantity of fuel participating in combustion in the stove can not be controlled, and the controllability of combustion feeding is poor;
3. the fuel in the stove is not fully combusted, and the efficiency is low.
Disclosure of Invention
The invention provides a civil biomass briquette and particle dual-purpose cooking and baking stove which can solve the problems.
In order to achieve the purpose, the invention adopts the following technical scheme: a civil biomass briquette and particle dual-purpose cooking and baking stove comprises a feeding part, a fuel supply part and a fuel supply part, wherein the feeding part is used for storing biomass fuel and supplying the fuel to a fixed carbon combustion deslagging part; the fixed carbon combustion deslagging part is used for completing the feeding gear adjustment of the biomass fuel, preheating, gasification, fixed carbon combustion, ash collection, grate deslagging and primary air adjustment; a secondary gasification combustion part for sufficiently combusting volatile components generated by the fixed carbon combustion deslagging part; the cooking smoke exhaust part is positioned at the top end of the secondary gasification combustion part and is used for connecting a chimney to exhaust combustion smoke; the feeding part, the fixed carbon combustion deslagging part, the secondary gasification combustion part and the cooking smoke exhaust part are communicated in sequence.
Preferably, the whole oven comprises an oven shell, and the inside of the oven shell is divided into a feeding part, a fixed carbon combustion deslagging part, a secondary gasification combustion part and a cooking smoke exhaust part; the fixed carbon combustion deslagging part comprises a fixed carbon combustion chamber arranged in a stove shell, an ash chamber positioned below the fixed carbon combustion chamber, a feeding adjusting grate arranged at a feeding port of the fixed carbon combustion chamber and used for adjusting feeding quantity, and a bottom combustion grate arranged at the bottom of the fixed carbon combustion chamber and positioned below the feeding adjusting grate, wherein the bottom combustion grate can be movably arranged on the ash chamber; an air suction opening is formed in the position, opposite to the bottom combustion grate and close to one end of the feeding adjusting grate, of the stove shell; a combustion chamber door is arranged on the side wall of the furnace shell close to the feeding end of the fixed carbon combustion chamber, and an ash chamber door is arranged on the ash chamber at the same side as the combustion chamber door; the feeding part is arranged above the feeding end of the fixed carbon combustion chamber; the secondary gasification combustion part is arranged at the upper part of the combustion end in the fixed carbon combustion chamber; and a secondary air preheating guide plate for providing secondary air to the secondary gasification combustion part is arranged on the side wall of the fixed carbon combustion chamber.
Preferably, an ash removal cam is mounted in the fixed carbon combustion chamber at a position close to the ash chamber door, contacts with the bottom of the bottom combustion grate and is connected with a rotating handle arranged outside the ash chamber through a transmission shaft.
Preferably, the feeding part comprises a bin chamber vertically arranged at a feeding port of the fixed carbon combustion chamber and a bin cover hermetically arranged at the top end of the bin chamber, the feeding adjusting grate is obliquely arranged, the upper end of the feeding adjusting grate is connected with the feeding port of the bin chamber or the fixed carbon combustion chamber, and the lower end of the feeding adjusting grate is movably arranged on the adjusting grate guide rail; the adjusting grate guide rail is arranged on the side wall of the stove shell and positioned above the bottom combustion grate.
Preferably, the secondary gasification combustion part comprises a secondary combustion chamber arranged on the upper part of the combustion end in the fixed carbon combustion chamber, a secondary air distribution cavity communicated with the secondary air preheating guide plate is formed between the outer wall of the secondary combustion chamber and the inner wall of the fixed carbon combustion chamber, and a plurality of secondary air nozzles are arranged on the side wall of the secondary air distribution cavity.
Preferably, the air distribution cavity at the lower part of the secondary combustion chamber is of an inverted bell mouth structure with a wide lower part and a narrow upper part.
Preferably, the cooking fume exhaust part comprises a fume exhaust chamber arranged at the upper part of the stove outer shell and positioned at the top end of the combustion end of the fixed carbon combustion chamber, the fume exhaust chamber is provided with hearth port heat accumulators on four sides of a flue above the secondary combustion chamber, the top end of the stove outer shell is provided with a cooking port cover at a position opposite to the hearth port heat accumulators, and a fume exhaust port is arranged on the side wall of the stove outer shell at a position opposite to the fume exhaust chamber.
Preferably, the top wall of the stove outer shell is of a double-layer stamping structure.
Preferably, the stove housing is provided with heat dissipation holes at the upper part of the combustion end of the fixed carbon combustion chamber.
Preferably, the bottom of the ash chamber is provided with furnace legs.
Compared with the prior art, the invention has the following advantages:
1. the fuel applicability is wide: the fixed carbon combustion deslagging part adopted by the stove can be used for completing the feeding gear adjustment, preheating, gasification, fixed carbon combustion, ash collection, grate deslagging and primary air adjustment of biomass fuel, and the fixed carbon combustion deslagging part is matched with the feeding part for use, so that the stove can be fully suitable for the full and efficient combustion of various agriculture and forestry biomass fuels such as biomass briquettes, particles, branches and wood chippings, and has higher applicability and wider selectivity; the design of the structure of the sealed bin door, the vertical large bin, the upper grate with adjustable opening and the double-layer grates with the upper and the lower large holes is the concrete embodiment.
2. The double adjusting mode of the feeding quantity and the combustion power is as follows: the fixed carbon combustion deslagging part adopted by the stove has adjustable feeding amount and air distribution amount, for example, the opening degree of a valve of a feed bin chamber and a fixed carbon combustion contact surface can be adjusted by adjusting the left and right positions of a feeding adjusting grate on a guide rail, and finally the quantity of fuel participating in combustion is effectively controlled; and the effective control of the combustion intensity can be realized by adjusting the opening of the ash chamber and controlling the air permeability to control the primary air quantity at the bottom. The combustion power controllability of the stove is better by the mode of bidirectional adjustment of the feeding amount and the air distribution amount.
3. The gasification in subregion, preheat the secondary air distribution, the burning is more complete: the stove of the invention adopts a gasification zone combustion mode, fuel completes preheating, pyrolysis, gasification and fixed carbon combustion on a fixed carbon combustion chamber and a double-layer grate, and completes volatile component combustion in a secondary combustion chamber. The secondary air entering the secondary combustion chamber is preheated by three stages, has sufficient initial heat, and enters the secondary combustion chamber to be more sufficiently mixed and combusted with the volatile component. The combination of the subarea gasification combustion and the preheating secondary air enables the stove to burn more fully and completely, and the efficiency is higher.
4. The movable adjustable double grate has more complete combustion and more convenient maintenance: the stove adopts the structural design of an upper-layer adjustable grate and a lower-layer adjustable grate, wherein the feeding adjusting grate serving as the upper-layer grate can be pushed and adjusted left and right, the gear size is adjusted by controlling the feeding amount, and the ash removal cam which can enable the upper layer grate to vibrate up and down is arranged at the bottom of the bottom combustion grate serving as the lower-layer grate, so that the ash removal is realized in real time to prevent coking and slagging. Meanwhile, the upper and lower double-layer grates are designed by adopting movable and detachable structures, so that the stove is more convenient and quicker to maintain and operate.
5. The continuous combustion of a large storage bin and a large ash chamber is more worry-saving: the stove of the invention adopts a large material bin and large ash chamber structure, the continuous non-interference running time of less filling and less ash cleaning is more durable, and the stove is more worry-saving in continuous use and maintenance.
6. The furnace mouth is preheated, and the inclined wall dust fall is more environment-friendly: the furnace heat accumulator is arranged at the upper part of the secondary combustion chamber of the furnace, so that the secondary combustion area of the furnace at the low-temperature combustion stage or the low-temperature combustion stage can be fully accumulated with heat, and the condition of low combustion efficiency caused by insufficient temperature can be prevented; meanwhile, the air distribution cavity at the lower part of the secondary combustion chamber adopts a reversed horn mouth structure with a wide lower part and a narrow upper part, so that ash raised in the fixed carbon combustion chamber is effectively blocked and collected, and the smoke emission of the stove is cleaner and more environment-friendly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view from another perspective of the present invention;
fig. 3 is a cross-sectional view of the present invention.
In the figure: 1. stove shell, 2, feed bin lid, 3, feed bin chamber, 4, burning chamber door, 5, feeding regulation grate, 6, regulation grate guide rail, 7, ash chamber door, 8, deashing cam, 9, bottom burning grate, 10, fixed carbon combustion chamber, 11, stove leg, 12, ash chamber, 13, overgrate air preheating guide plate, 14, overgrate air distribution cavity, 15, overgrate combustion chamber, 16, overgrate air spout, 17, exhaust port, 18, cooking flap, 19, heat accumulator, 20, rotating handle, 21, exhaust port, 22, louvre.
Detailed Description
The technical solutions in the implementation of the present invention will be made clear and fully described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, the civil biomass briquette and pellet dual-purpose cooking and baking stove according to the embodiment of the present invention includes a supply part for storing biomass fuel and supplying the fuel to a fixed carbon combustion residue removal part; the fixed carbon combustion deslagging part is used for completing the feeding gear adjustment of the biomass fuel, preheating, gasification, fixed carbon combustion, ash collection, grate deslagging and primary air adjustment; a secondary gasification combustion part for sufficiently combusting volatile components generated by the fixed carbon combustion deslagging part; the cooking smoke exhaust part is positioned at the top end of the secondary gasification combustion part and is used for connecting a chimney to exhaust combustion smoke; the feeding part, the fixed carbon combustion deslagging part, the secondary gasification combustion part and the cooking smoke exhaust part are communicated in sequence. Biomass fuel enters a fixed carbon combustion deslagging part through a material supply part, combustible volatile matters generated by gasification enter a secondary gasification combustion part when the fixed carbon combustion deslagging part is combusted, secondary combustion is carried out in the secondary gasification combustion part, and mixed smoke and flame after secondary combustion complete cooking heat supply and smoke emission through a cooking smoke exhaust part; the burnt ash and the coke slag generated after the combustion of the combustion slag removing part of the fixed carbon can be collected and processed in a centralized way; meanwhile, the fixed carbon combustion deslagging part can also be used for adjusting the feeding amount of the biomass fuel, so that more sufficient and complete combustion is ensured.
As shown in fig. 1 to 3, the whole oven comprises an oven shell 1, and the inside of the oven shell 1 is divided into a feeding part, a fixed carbon combustion deslagging part, a secondary gasification combustion part and a cooking smoke discharging part; the fixed carbon combustion deslagging part is positioned at the bottom of the stove shell, the feeding part is positioned above the feeding end of the fixed carbon combustion deslagging part in the stove shell, and the secondary gasification combustion part is positioned above the combustion end of the fixed carbon combustion deslagging part in the stove shell; the cooking smoke exhaust part is positioned above the secondary gasification combustion part at the top of the stove shell; the fixed carbon combustion deslagging part comprises a fixed carbon combustion chamber 10 arranged in a stove shell, an ash chamber 12 positioned below the fixed carbon combustion chamber 10, a feeding adjusting grate 5 arranged at a feeding port of the fixed carbon combustion chamber 10 and used for adjusting feeding quantity, and a bottom combustion grate 9 arranged at the bottom of the fixed carbon combustion chamber 10 and positioned below the feeding adjusting grate 5, wherein the fixed carbon combustion chamber 10 is integrally of an L-shaped structure, the right side of the fixed carbon combustion chamber 10 is a feeding end, and the left side of the fixed carbon combustion chamber 10 is a combustion end; the feeding part is arranged at the upper right part of the fixed carbon combustion chamber 10, and the secondary gasification combustion part is arranged at the upper left part of the fixed carbon combustion chamber 10; the feeding adjusting grate 5 is used for receiving the biomass fuel in the feeding part, and the contact surface size of the feeding part and the fixed carbon combustion chamber 10 can be controlled by adjusting the feeding adjusting grate 5, so that the feeding amount is controlled; the bottom combustion grate 9 is movably arranged on the ash chamber 12 and is mainly used for preheating and gasifying biomass fuel, burning out fixed carbon and dropping ash; the position of the furnace shell 1, which is opposite to one end of the bottom combustion grate 9 close to the feeding adjusting grate 5, is symmetrically provided with air suction ports 21 for sucking combustion secondary combustion-supporting air; a combustion chamber door 4 is arranged on the side wall of the furnace shell 1 close to the feeding end of the fixed carbon combustion chamber 10, and the combustion chamber door 4 can be used for adjusting and cleaning a feeding adjusting grate 5 and a bottom combustion grate 9; an ash chamber door 7 is arranged on the ash chamber 12 at the same side as the combustion chamber door 4, the ash chamber 12 is mainly used for storing burnt ash and coke breeze which are completely combusted and fall off by fixed carbon in the fixed carbon combustion chamber 10, the ash chamber door 7 is positioned on the right side of the ash chamber 12 and below the combustion chamber door 4 and is mainly used for cleaning ash and slag accumulated in the ash chamber 12 and adjusting primary combustion air at the bottom of the grate in a closed and open state; and a secondary air preheating guide plate 13 for providing secondary air to a secondary gasification combustion part is arranged on the side wall of the fixed carbon combustion chamber 10. Wherein, the bottom combustion grate 9 can be arranged in the fixed carbon combustion chamber 10 from the combustion chamber door 4, is arranged below the feeding adjusting grate 5, namely on the cover plate clamping groove at the upper part of the ash chamber 12, and is mainly used for preheating and gasifying biomass fuel, burning out fixed carbon and falling ash. The bin cover 2 and the combustion chamber door 4 can be tightly closed by movable handles, and a sealing ring is pressed inside the furnace door to ensure tight sealing.
Considering that burnout ash and coke slag which are possibly accumulated on the bottom combustion grate 9 and fall off due to combustion are not beneficial to the full combustion of fuel in the fixed carbon combustion chamber 10 due to the accumulation of the burnout ash and the coke slag, an ash cleaning assembly for performing vibration ash cleaning on the bottom combustion grate 9 can be installed in the fixed carbon combustion chamber 10, the ash cleaning assembly comprises an ash cleaning cam 8 which is installed in the fixed carbon combustion chamber 10 and is close to the ash chamber door 12, and the ash cleaning cam 8 is in contact with the bottom of the bottom combustion grate 9 and is connected with a rotating handle 20 which is arranged outside the ash chamber 12 through a transmission shaft. During operation, accessible rotates rotatory handle 20 drive deashing cam 8 and rotates, and when deashing cam 8 rotated, bottom burning grate 9 can take place vibrations from top to bottom, shakes the complete combustion ash and the burnt sediment on bottom burning grate 9 and falls into ash chamber 12 to avoid appearing complete combustion ash and the accumulational condition of burnt sediment on bottom burning grate 9, guarantee that fuel can fully burn, improve the combustion rate of fuel.
As a further limitation of the present invention, the feeding part comprises a bin chamber 3 vertically arranged at the feeding port of the fixed carbon combustion chamber 10 and a bin cover 2 hermetically mounted at the top end of the bin chamber 3, the feeding adjusting grate 5 is obliquely arranged, the upper end of the feeding adjusting grate 5 is connected with the feeding port of the bin chamber 3 or the fixed carbon combustion chamber 10, and the lower end is movably mounted on the adjusting grate guide rail 6; the adjusting grate guide rail 6 is arranged on the side wall of the stove outer shell 1 and is positioned above the bottom combustion grate 9. The feeding adjusting grate 5 can comprise an upper connecting plate and a lower connecting plate which are obliquely arranged, the upper end of the upper connecting plate is hinged with a feeding hole of the storage bin chamber 3 or the fixed carbon combustion chamber 10, and the lower end of the upper connecting plate can be slidably arranged on the lower connecting plate; the lower end of the lower connecting plate can be movably arranged on the guide rail 6 of the adjusting grate; the lower end of the upper connecting plate is provided with a plurality of spherical bulges, the upper surface of the lower connecting plate is provided with a sliding groove matched with the spherical bulges, and the sliding groove can ensure that the spherical bulges at the lower end of the upper connecting plate are always in the sliding groove and slide upwards or downwards along the sliding groove when the lower connecting plate moves leftwards or rightwards along the adjusting grate guide rail 6, so that the upper connecting plate and the lower connecting plate are always connected together, the amount of materials entering the fixed carbon combustion chamber 10 from the bin chamber 3 is changed, and the adjustment of a feeding gear is realized; of course, the feeding adjustment grate 5 may have other structures as long as it can adjust the feeding amount, and the other structures are not described in detail herein. When the device is used, the feeding adjusting grate 5 can be moved left and right along the direction of the adjusting grate guide rail 6 to control the size of the contact surface of the feed bin chamber 3 and the fixed carbon combustion chamber 10, so that the feeding amount is controlled. The bin chamber adopts a sealed bin cover, a large vertical bin and an adjustable opening degree of a feeding adjusting grate 5, so that the stove can be fully suitable for full and efficient combustion of various agriculture and forestry biomass fuels such as biomass briquettes, particles, branches, wood chips and the like, and has higher applicability and wider selectivity; meanwhile, the large storage bin is adopted, so that the filling material can be reduced each time, the running time is more durable, and the furnace is continuously used and maintained more worry-saving.
As a further limitation of the invention, the secondary gasification combustion part comprises a secondary combustion chamber 15 arranged at the upper part of the combustion end in the fixed carbon combustion chamber 10, a secondary air distribution cavity 14 communicated with the secondary air preheating guide plate 13 is formed between the outer wall of the secondary combustion chamber 15 in the stove housing 1 and the inner wall of the fixed carbon combustion chamber 10, and a plurality of secondary air nozzles 16 are arranged on the side wall of the secondary air distribution cavity 14. The overgrate air preheats the baffle 13 and is located between fixed carbon combustion chamber 10 and feed bin room 3, welds on the lateral wall that fixed carbon combustion chamber 10 is close to feed bin room 3 one side, and overgrate air distribution chamber 14 is located cooking mouth below, and its right flank has the hole to preheat the baffle 11 intercommunication with the overgrate air, and its inside four sides reserve has the overgrate air inlet port. In order to ensure that the combustion volatile components can enter the secondary combustion chamber 15 to the maximum extent, the air distribution cavity at the lower part of the secondary combustion chamber 15 is of a reversed bell mouth structure with a wide lower part and a narrow upper part, so that the combustion volatile components can enter the secondary combustion chamber 15, and meanwhile, ash content raised in the fixed carbon combustion chamber 10 can be blocked and collected, and the smoke emission of the stove is cleaner and more environment-friendly.
As a further limitation of the present invention, the cooking fume exhaust part comprises a fume exhaust chamber arranged at the upper part of the stove outer shell 1 and positioned at the top end of the combustion end of the fixed carbon combustion chamber 10, the fume exhaust chamber is provided with hearth port heat accumulators 19 at four sides of a flue above the secondary combustion chamber 15, and the hearth port heat accumulators 19 are used for accumulating heat to ensure that the temperature of the secondary gasification combustion area is sufficient; a cooking opening cover 18 is arranged at the position, opposite to the hearth opening heat accumulator 19, of the top end of the stove outer shell 1, and a smoke exhaust opening 17 is arranged at the position, opposite to the smoke exhaust chamber, of the side wall of the stove outer shell 1.
In order to prevent the stove from being deformed by heat in view of heat supply by concentrating heat above the stove, the top wall of the stove shell 1 is of a double-layer stamping structure.
Considering that the heat is too concentrated can influence the life of whole stove, the louvre 22 that is used for the release heat can be opened to the position that lies in fixed carbon combustion chamber 10 combustion end upper portion on stove shell 1, on the louvre 22 can be established on the lateral wall that the stove shell kept away from feed bin room and perpendicular to feed bin room, cold air can inhale through the inlet scoop of bottom, discharges through louvre 22 behind the cavity that forms between stove shell 1 and fixed carbon combustion chamber 10, the ash discharge room to the realization is to the heat dissipation of stove and to external environment's convection current heat supply.
As a further improvement of the invention, the bottom of the ash chamber 12 can be provided with furnace legs 11, and the addition of the furnace legs 11 can pull a gap between the whole furnace and the ground, thereby preventing the corrosion of moisture on the ground and simultaneously increasing the heat radiation effect of the furnace.
The working process is as follows:
open feed bin lid 2 in the stove conventional operation, in the pan feeding bin 3 with sufficient fuel filling, under the normal condition, inside the bin chamber 3, grate 5 top is adjusted in the feeding, fixed carbon combustion chamber 10 all is filled up with fuel to the bottom combustion grate 9 top that leans on the feed inlet side partially, the feed is adjusted the feed inlet size in 5 left sides of grate and is adjusted what of windrow on the grate 9 of bottom combustion receives the feeding and adjusts the grate 5 and control the position difference regulation and control about, can be in order to adjust the grate 5 through adjusting the feeding and control how much of windrow in the position control fixed carbon combustion chamber 10.
In operation the user can open the combustion chamber door 4 or withdraw the ash chamber door 7 and then use an open flame to ignite the fuel above the bottom combustion grate 9. After the fire in the combustion chamber is ignited successfully, the sealing door is closed, and the stove can enter normal combustion. The primary air of furnace fuel burning gets into by ash chamber door 7, can adjust the bottom amount of wind through the degree of closure of control ash chamber door 7 in the operation, and the opening is big more, and the amount of wind is big more, and combustion rate is fast more.
Biomass fuel is preheated, gasified and burnt by fixed carbon on the feeding adjusting grate 5 and the bottom combustion grate 9, and completely burnt ash falls into the ash chamber 12 from the gap of the bottom combustion grate 9. In the combustion process, if ash falling above the bottom combustion grate 9 is not smooth or a small amount of coke slag exists, the ash removal cam 8 can be driven to rotate by rotating the rotating handle 20, and finally the bottom combustion grate 9 is driven to vibrate up and down, so that the effect of intervening ash removal and slag falling is achieved.
Combustible volatile components generated by gasifying the biomass fuel on the bottom combustion grate 9 carry part of heat generated by burning the fixed carbon to flow into the secondary combustion chamber 15 through the left upper side of the fixed carbon combustion chamber 10, and are mixed with preheated secondary air in the secondary combustion chamber 15 to finish combustion. The secondary air entering the secondary combustion chamber 15 mainly enters the inside of the stove shell 1 through the air suction opening 20, enters the secondary air preheating guide plate 13 after being preliminarily preheated by the outer wall surface of the fixed carbon combustion chamber 10, then enters the secondary air distribution chamber 14 through the hole of the bottom wall surface at the right side of the secondary air distribution chamber 14, finally enters the secondary combustion chamber 15 through secondary air nozzles 16 uniformly distributed on four surfaces inside the secondary air distribution chamber 14 after being preheated in the secondary air distribution chamber, is mixed with volatile components, and then completes complete combustion and heat release.
And hearth port heat accumulators 19 are arranged on four sides of the flue above the side of the secondary combustion chamber 15 and used for accumulating heat for secondary combustion of volatile matters and reducing smoke caused by insufficient combustion temperature. The mixed flue gas and flame after the volatile combustion are sprayed out from the hearth port heat accumulator 19 to the cooking port cover 18 to finish cooking heat supply, and then the flue gas is converged and turned in a cavity at the lower side of the cooking port cover 18 and enters a connecting chimney through the smoke outlet 17 to be finally discharged outdoors.
The heat generated by the combustion of the stove is mainly released by two forms of convection and radiation. Wherein, the heat convection process is: fresh cold air enters the inside of the stove shell 1 through the air suction opening 20, and after being fully heated in gaps (cavities) among the stove shell, the fixed carbon combustion chamber 10 and the outer wall of the smoke exhaust chamber, the cold air is finally exhausted through the heat dissipation opening 22, and natural air convection circulation heat supply is formed through internal temperature gradient distribution. The radiation heat dissipation is mainly generated by the radiation heat of the environment through the wall surfaces of each chamber of the hearth (referring to the wall surfaces of the fixed carbon combustion chamber 10, the smoke exhaust chamber, the ash chamber and the like), the stove shell, the cooking port, the smoke pipe, the chimney and the like.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a civil biomass briquetting, dual-purpose cooking stove of granule which characterized in that includes:
a supply part for storing biomass fuel and supplying the fuel to the fixed carbon combustion deslagging part;
the fixed carbon combustion deslagging part is used for completing the feeding gear adjustment of the biomass fuel, preheating, gasification, fixed carbon combustion, ash collection, grate deslagging and primary air adjustment;
a secondary gasification combustion part for sufficiently combusting volatile components generated by the fixed carbon combustion deslagging part;
the cooking smoke exhaust part is positioned at the top end of the secondary gasification combustion part and is used for connecting a chimney to exhaust combustion smoke;
the feeding part, the fixed carbon combustion deslagging part, the secondary gasification combustion part and the cooking smoke exhaust part are communicated in sequence.
2. The civil biomass briquette and particle dual-purpose cooking and heating stove as claimed in claim 1, wherein the whole heating stove comprises a stove outer shell, and the inside of the stove outer shell is divided into a feeding part, a fixed carbon combustion deslagging part, a secondary gasification combustion part and a cooking smoke discharging part;
the fixed carbon combustion deslagging part comprises a fixed carbon combustion chamber arranged in a stove shell, an ash chamber positioned below the fixed carbon combustion chamber, a feeding adjusting grate arranged at a feeding port of the fixed carbon combustion chamber and used for adjusting feeding quantity, and a bottom combustion grate arranged at the bottom of the fixed carbon combustion chamber and positioned below the feeding adjusting grate, wherein the bottom combustion grate can be movably arranged on the ash chamber; an air suction opening is formed in the position, opposite to the bottom combustion grate and close to one end of the feeding adjusting grate, of the stove shell;
a combustion chamber door is arranged on the side wall of the furnace shell close to the feeding end of the fixed carbon combustion chamber, and an ash chamber door is arranged on the ash chamber at the same side as the combustion chamber door;
the feeding part is arranged above the feeding end of the fixed carbon combustion chamber;
the secondary gasification combustion part is arranged at the upper part of the combustion end in the fixed carbon combustion chamber;
and a secondary air preheating guide plate for providing secondary air to the secondary gasification combustion part is arranged on the side wall of the fixed carbon combustion chamber.
3. The civil biomass briquette and particle dual-purpose cooking and baking stove as claimed in claim 2, wherein a dust removing cam is mounted in the fixed carbon combustion chamber at a position close to the door of the ash chamber, contacts with the bottom of the bottom combustion grate and is connected with a rotary handle arranged outside the ash chamber through a transmission shaft.
4. The civil biomass briquette and particle dual-purpose cooking and baking stove as claimed in claim 2, wherein the feeding part comprises a bin chamber vertically arranged at the feeding port of the fixed carbon combustion chamber and a bin cover hermetically mounted at the top end of the bin chamber, the feeding adjusting grate is obliquely arranged, the upper end of the feeding adjusting grate is connected with the feeding port of the bin chamber or the fixed carbon combustion chamber, and the lower end of the feeding adjusting grate is movably mounted on the adjusting grate guide rail; the adjusting grate guide rail is arranged on the side wall of the stove shell and positioned above the bottom combustion grate.
5. The civil biomass briquette and particle dual-purpose cooking and baking stove as claimed in claim 2, wherein the secondary gasification combustion part comprises a secondary combustion chamber arranged at the upper part of the combustion end in the fixed carbon combustion chamber, a secondary air distribution cavity communicated with the secondary air preheating guide plate is formed between the outer wall of the secondary combustion chamber and the inner wall of the fixed carbon combustion chamber, and a plurality of secondary air nozzles are arranged on the side wall of the secondary air distribution cavity.
6. The civil biomass briquette and particle dual-purpose cooking and baking stove as claimed in claim 5, wherein the air distribution cavity at the lower part of the secondary combustion chamber is of an inverted bell mouth structure with a wide lower part and a narrow upper part.
7. The civil biomass briquette and particle dual-purpose cooking and baking stove as claimed in claim 5, wherein the cooking and smoke discharging part comprises a smoke discharging chamber arranged at the upper part of the stove housing and positioned at the top end of the combustion end of the fixed carbon combustion chamber, the smoke discharging chamber is provided with hearth port heat accumulators at four sides of the flue above the secondary combustion chamber, the top end of the stove housing is provided with a cooking port cover at the position opposite to the hearth port heat accumulator, and the side wall of the stove housing is provided with a smoke discharging port at the position opposite to the smoke discharging chamber.
8. The civil biomass briquette and particle dual-purpose cooking and baking stove as claimed in claim 7, wherein the top wall of the stove housing is of a double-layer stamping structure.
9. The civil biomass briquette and particle dual-purpose cooking and baking stove as claimed in claim 2, wherein the stove housing is provided with heat dissipation holes at the upper part of the combustion end of the fixed carbon combustion chamber.
10. The civil biomass briquette and particle dual-purpose cooking and baking stove as claimed in claim 2, wherein the bottom of the ash chamber is provided with stove legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110090519.3A CN112833428A (en) | 2021-01-22 | 2021-01-22 | Civil biomass briquette and particle dual-purpose cooking and baking stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110090519.3A CN112833428A (en) | 2021-01-22 | 2021-01-22 | Civil biomass briquette and particle dual-purpose cooking and baking stove |
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| CN112833428A true CN112833428A (en) | 2021-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110090519.3A Pending CN112833428A (en) | 2021-01-22 | 2021-01-22 | Civil biomass briquette and particle dual-purpose cooking and baking stove |
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| CN114688580B (en) * | 2022-03-04 | 2024-04-19 | 山东省博兴县旺泉厨业有限公司 | Biomass gas stove with twice gasification combustion function |
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