CN207661759U - A kind of burner of biomass burning granular fuel - Google Patents

A kind of burner of biomass burning granular fuel Download PDF

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Publication number
CN207661759U
CN207661759U CN201721424086.6U CN201721424086U CN207661759U CN 207661759 U CN207661759 U CN 207661759U CN 201721424086 U CN201721424086 U CN 201721424086U CN 207661759 U CN207661759 U CN 207661759U
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blanking
air
grate
fixed
combustion chamber
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CN201721424086.6U
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杨旭东
单明
邓梦思
吴金山
赵春生
李定凯
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Tsinghua University
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Tsinghua University
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Abstract

The utility model proposes a kind of biomass burning granular fuel burner, belong to biomass combustion equipment technical field.Combustion chamber including hopper, below hopper, equipment box, blanking system, combustion system, supply air system and the ignition system fixed and be connected to combustion chamber rear end side wall;Blanking system includes the blanking partition board being sequentially connected, blanking drive link, blanking driving flywheel, blanking driving motor and blanking travel switch;Combustion system includes furnace grate support, fixed grate, the moving grate being sequentially connected, fire grate drive link, fire grate driving flywheel, fire grate driving motor and fire grate travel switch;Supply air system includes primary air fan, overfire air fan, secondary air channel and two Secondary Air chambers;Ignition system includes igniting wind turbine, igniter and igniting air hose.The burner is by the fractional combustion to fuel, and burning is more abundant, and pollutant emission is low, high degree of automation, easy to operate, solves frequent manpower charging and burns the problems such as insufficient.

Description

A kind of burner of biomass burning granular fuel
Technical field
The utility model is related to a kind of burners of biomass burning granular fuel, belong to biomass combustion equipment technology neck Domain.
Background technology
Farm building heating at this stage is big with energy total amount, and utilization ratio is low, and indoor thermal environment is generally poor.From energy resource structure See, commodity with can ratio it is high, coal accounts for the ratio about 75% of heating energy consumption, and (Tsinghua University's building energy conservation research center China builds Build 2016. Beijing of Energy Conservation Annual Research Report:China Construction Industry Press, 2016).The combustion that rural area largely uses The coal furnace thermal efficiency that heats is only 30%-40%, largely scattered coals burn in the coal stove of these inefficient maximum discharges cause it is huge Energy waste and serious environmental pollution, annual purchase commodity energy heating also cause larger financial burden to peasant.Using The own biomass resource heating in rural area can solve caused this of rural area heating at this stage to a certain extent Row problem.China's biomass resource is abundant, every year using about 4.96 hundred million tons of standard coals of the theoretical total amount of biomass resource, but it is existing Stage only has about 8% biomass resource to be utilized, and about 30% stalk (about 100,000,000 tce) is abandoned by open incineration or arbitrarily (2016. Beijing of Tsinghua University's building energy conservation research center Chinese architecture Energy Conservations Annual Research Report:Chinese architecture industry Publishing house, 2016).To promote biomass energy rationally to utilize, National Energy Board announces in October, 2016《Biomass energy 13 Five planning》It is proposed the year two thousand twenty, biomass molding fuel year utilization to reach 30,000,000 tons, push molding fuel industry hair Exhibition.At present rural area be exclusively used in biomass molding fuel burning stove and burner it is also less, unmatched burner exists The spatter property and high efficiency of biomass molding fuel can not be embodied during use.Therefore, it designs and is suitble to biomass moulding combustion Material burning and burner that is easy to use, being accepted extensively by peasant, are conducive to quickening rural area biomass molding fuel and replace In generation, dissipates the process of coal, can be of great significance for realizing that rural area is Clean- early.
Utility model content
The purpose of this utility model is to provide a kind of burner of biomass burning granular fuel, it is intended to solve rural area Heating is of high cost, dissipates the problems such as energy waste, environmental pollution that coal combustion and biomass irrational utilization are brought, and providing one kind makes With convenient, reliable for operation, efficient low-discharging biomass granular fuel combustor.
Technical solutions of the utility model are as follows:
A kind of burner of biomass burning granular fuel, which is characterized in that including hopper (2), be located at below hopper (2) Combustion chamber (11), fix and be connected to combustion chamber (11) rear end side wall equipment box (31), blanking system, combustion system, give Wind system and ignition system;
Wherein, the combustion chamber (11) is equipped with chimney connector (10) and smoke exhaust fan (9) by the top of front end, is located at The middle part and end of combustion chamber (11) interior bottom are respectively equipped with middle part ash bucket (23) and end ash bucket (20), the combustion chamber (11) The interior bottom by front end is equipped with ash door (21);
The blanking system includes the blanking partition board (3) touched with the combustion chamber (11) top and hopper (2) bottom connection, With the sequentially connected blanking drive link (35) of the blanking partition board (3), the blanking being located in equipment box (31) driving flywheel (33) With the blanking driving motor (32) being fixed on outside equipment box (31) side wall, and under being fixed on the side wall of equipment box (31) rear end Expect travel switch (30);
The combustion system includes the furnace grate support (22) being located in combustion chamber (11), is located at end ash bucket (20) top Fixed grate (18) and the moving grate (16) above middle part ash bucket (23), are sequentially connected with moving grate (16) rear end Fire grate drive link (24), the fire grate driving flywheel that is located in equipment box (31) (25) and is fixed on outside equipment box (31) side wall Fire grate driving motor (26), and the fire grate travel switch (27) that is fixed on the side wall of equipment box (31) rear end;Fixed grate (18) upper surface is contacted with the extension riser lower surface for being fixed on moving grate (16) front end, which passes through Furnace grate support (22) is supported on combustion chamber (11) side wall;It is located at moving grate (16) and stationary furnace in the combustion chamber (11) It arranges and is equipped with burner hearth (17) above (18);
The supply air system is located at the middle part of combustion system and blanking system, including air outlet is located at equipment box (31) inside Primary air fan (28), air outlet is located at the internal overfire air fan (34) in combustion chamber (11), is individually fixed in hearth biside wall First Secondary Air chamber (12) and second secondary wind chamber (12a) and both ends respectively with overfire air fan (34) air outlet and the one or two The secondary air channel (5) of secondary wind chamber connection;Two Secondary Air chambers are distributed with secondary air hole on the side wall of fixed grate (18);
The ignition system is located in the middle part of supply air system and combustion system, including air outlet is located at the point in combustion chamber (11) Windburn machine (29), the igniter (14) being fixed between the first Secondary Air chamber lower surface and moving grate (16) upper surface and Connect the igniting air hose (6) of igniting wind turbine (29) and igniter (14).
The utility model has the following advantages and high-lighting effect:1. being carried out by using automatic blanking system a small amount of multiple Feeding improves the adequacy and combustion stability of fuel combustion;2. by moving grate and the collocation burning of fixed grate multistage, Fuel bed and air attaching space are increased, fuel firing rate is improved;3. separately being supplied by primary and secondary air, combustion is realized The multistage of material burns, and reduces the pollutant discharge amounts such as fuel consumption and CO, PM;4. controlling driving electricity by integrated control panel Motor-driven work realizes operation automation, has liberated labour;5. the utility model is simple in structure, simplicity is used.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the burner of biomass burning granular fuel provided by the utility model.
Fig. 2 is the A-A sectional views of Fig. 1.
Fig. 3 is the B-B sectional views of Fig. 1.
Fig. 4 is the C-C sectional views of Fig. 1.
Each component indicates in figure:1- hopper lids;2- hoppers;3- blanking partition boards;4- heat-barrier materials;5- secondary air channels;6- points Windburn pipe;7- baffles;The first secondary air holes of 8-;The second secondary air holes of 8a-;9- smoke exhaust fans;10- chimney connectors;11- fires Burn room;12- the first Secondary Air chambers;The second secondary wind chambers of 12a-;13- inboard wall of burner hearth;14- igniters;15- moving grates are ventilative Slot;16- moving grates;17- burner hearths;18- fixed grates;19- fixed grate ventilating grooves;The ends 20- ash bucket;21- falls ash door; 22- furnace grate supports;Ash bucket in the middle part of 23-;24- fire grate drive links;25- fire grates drive flywheel;26- fire grate driving motors;27- stoves Arrange travel switch;28- primary air fans;29- igniting wind turbines;30- blanking travel switches;31- equipment boxs;32- blankings driving electricity Machine;33- blankings drive flywheel;34- overfire air fans;35- blanking drive links.
Specific implementation mode
The operation principle of the utility model, concrete structure are further described below in conjunction with the accompanying drawings.
Fig. 1 is a kind of structural schematic diagram of the burner of biomass burning granular fuel provided by the utility model, and Fig. 2 is The A-A sectional views of Fig. 1, Fig. 3 are the B-B sectional views of Fig. 1, and Fig. 4 is the C-C sectional views of Fig. 1.
The burner of the present embodiment includes hopper 2, the combustion chamber 11 positioned at 2 lower section of hopper and 11 rear end side wall of combustion chamber Fixed and connection equipment box 31, blanking system, combustion system, supply air system and ignition system;
Wherein, the combustion chamber 11 is equipped with chimney connector 10 and smoke exhaust fan 9 by the top of front end, is located at combustion chamber The middle part of bottom and end are respectively equipped with middle part ash bucket 23 and end ash bucket 20 in 11, and the bottom of front end is leaned in the combustion chamber 11 It is equipped with ash door 21;
The blanking system includes the blanking partition board 3 touched with the top of combustion chamber 11 and 2 bottom connection of hopper, with the blanking every 3 sequentially connected blanking drive link 35 of plate, the blanking in equipment box 31 drive flywheel 33 and are fixed on equipment box 31 Blanking driving motor 32 outside side wall, and the blanking travel switch 30 that is fixed on 31 rear end side wall of equipment box;
The combustion system includes the furnace grate support 22 being located in combustion chamber 11, the stationary furnace positioned at 20 top of end ash bucket Row 18 and the moving grate 16 above middle part ash bucket 23 connect with the sequentially connected fire grate driving in 16 rear end of moving grate The fire grate driving motor 26 that bar 24, the fire grate in equipment box 31 drive flywheel 25 and be fixed on outside 31 side wall of equipment box, with And it is fixed on the fire grate travel switch 27 on 31 rear end side wall of equipment box;18 upper surface of fixed grate and it is fixed on moving grate 16 The extension riser lower surface of front end contacts, which is supported in by furnace grate support 22 on 11 side wall of combustion chamber; It is located above moving grate 16 and fixed grate 18 in the combustion chamber 11 and is equipped with burner hearth 17;
The supply air system is located at the middle part of combustion system and blanking system, including air outlet is located inside equipment box 31 Primary air fan 28, air outlet are located at overfire air fan 34 inside combustion chamber 11, are individually fixed in the 1st of 17 two side of burner hearth What secondary wind chamber 12 and second secondary wind chamber 12a and both ends were connected to 34 air outlet of overfire air fan and the first Secondary Air chamber respectively Secondary air channel 5;The first secondary air hole 8 and is distributed in first, second Secondary Air chamber respectively on the side wall of fixed grate 18 Two secondary air hole 8a, and the first Secondary Air chamber 12 is fixed on the top below 3 front end of blanking partition board in combustion chamber 11, it is second secondary Wind chamber 12a is fixed on 21 top of ash door;
The ignition system is located in the middle part of supply air system and combustion system, including air outlet is located at the igniting in combustion chamber 11 Described in wind turbine 29, the igniter 14 being fixed between 16 upper surface of the first Secondary Air chamber lower surface and moving grate and connection The igniting air hose 6 of igniting wind turbine 29 and igniter 14;The ignition system is automatic ignition system, and igniter 14 is in the on state Fever, igniting wind turbine 29 continuously will be blown to fire grate fuel bed by the hot wind of pyrogen igniter 14, until fuel is ignited.
3 front end of blanking partition board is equipped with insulating water clod 4, for preventing 2 bottom temp mistake of blanking partition board 3 and hopper It is high;The blanking driving motor 32 connects blanking driving flywheel 33 and blanking drive link 35 drives blanking partition board 3 repeatedly moving Make lower arrival front end, realizes granular fuel multiple feeding on a small quantity.
It is arranged with multiple fire grate ventilating grooves on the moving grate 16 and fixed grate 19, and is located on moving grate 16 The quantity of front end ventilating groove is more compared with rear end;The ventilating groove of setting is on the one hand for increasing fuel and air attaching space, another party Face makes a part of ash content fall to middle part ash bucket 23 and end ash bucket 19;The width of each ventilating groove of the present embodiment is 5mm.It is described Moving grate 16 is realized under the driving of fire grate driving motor 26 and the drive of fire grate driving flywheel 25 and fire grate drive link 24 It moves back and forth, fuel is gradually pushed ahead under 13 rear side blocking of inboard wall of burner hearth on moving grate 16, until falling to stationary furnace Row 18, the front side of moving grate 16 extend riser and are pushed in 16 motion process of moving grate before fuel is continuous on fixed grate 18 Into the ash content in fuel afterburnt is pushed in end ash bucket 20.
The primary air fan 28 is arranged on 31 rear end side wall of equipment box, and First air is first sent into equipment box 31 under cooling Expect driving motor 32 and fire grate driving motor 26, then send again to fuel bed.
The first secondary air hole 8 of a diameter of 6mm of one row and second secondary air holes are arranged respectively at described two Secondary Air chambers top 8a, air outlet direction are obliquely towards 17 middle part of burner hearth;Wherein, the first Secondary Air top of chamber is equipped with the bevel convenient for blanking Face.
The ash door 21 of falling is located at immediately below smoke exhaust fan 9, and close to 18 front end of fixed grate, and height is slightly above fixed Fire grate 18, upper layer fuel rest under the blocking of inboard wall of burner hearth 13 on fixed grate 18, and lower layer's ashes fall from ash door 21 is fallen to end It holds in ash bucket 20.
The igniter 14 is made of silicon nitride refractory ceramics, and fever is stablized and service life is long, 29 He of wind turbine of lighting a fire 6 common start and stop of igniter.
11 inner top of the combustion chamber, which is located at 3 front side of blanking partition board, is additionally provided with baffle 7, on the one hand stops that flame extends to On the other hand hopper 2 can prevent single feeding excessively too fast.
Programmable logic controller (PLC), power transmission controller and power-supply controller of electric are integrated in the equipment box 31 in one The integrated control panel of body, the integrated control panel respectively with blanking travel switch 30, fire grate travel switch 27, blanking driving motor 32, fire grate driving motor 26, igniter 14, igniting wind turbine 29, smoke exhaust fan 9, primary air fan 28 and overfire air fan 34 are electrically connected It connects, for automatically controlling the operation of burner normal table.Each controller is all made of conventional die in the present embodiment integrated control panel.
The blanking travel switch 30 is in normally open, and closing for the blanking travel switch 30 is controlled by integrated control panel The starting for closing time decision blanking partition board 3 is advanced the time, and the effect of fire grate travel switch 27 is similar with blanking travel switch.
It is conventional products that the utility model, which respectively forms parts,.
The principles of the present invention and the course of work are as follows:
Biomass granule fuel is added in hopper 2 first, covers hopper lid 1, blanking driving motor 32 drives blanking to drive Dynamic flywheel 33 and blanking drive link 35 drive blanking partition board 3 to drop back to blanking driving flywheel 33 and are connect with blanking travel switch 30 It touches, blanking travel switch 30 is closed, and blanking driving motor 32 is stopped, and granular fuel is through 3 gap of hopper 2 and blanking partition board 3 front side of blanking partition board is fallen to, blanking travel switch 30 flicks under program, and blanking driving motor 32 drives blanking partition board 3 travel forward, and push fuel to fall on moving grate 16 by several times;Igniter 14 is opened, and igniting wind turbine 29 sends out igniter 14 Heat is blown to fuel bed, closes igniter 14 after fuel fire stabilization and completes igniting;Fire grate driving motor 26 drives fire grate to drive Dynamic flywheel 25 and fire grate drive link 24 drive moving grate 16 to move back and forth, and fuel is gradually pushed under the blocking of inboard wall of burner hearth 13 Then 16 front end of moving grate falls to fixed grate 18 and burns away, 16 front extension board of moving grate constantly pushes fixation Forward, last ash content is fallen to through falling ash door 21 in end ash bucket 20 fuel on fire grate 18, and the effect of fire grate travel switch 27 is under Expect that travel switch 30 is similar;First air is sent into driving equipment case 31 through primary air fan 28, then the combustion through being connected to equipment box 31 Room 11 is burnt to send to fuel;Secondary Air is sent into Secondary Air chamber by overfire air fan 34 through secondary air channel 5, then enters from secondary air hole 17 top of burner hearth is burnt with the combustible component in flue gas, and fully the flue gas after burning connects under 9 draft of smoke exhaust fan through chimney Mouth 10 is discharged;When fuel shortage in hopper 2, opens hopper lid 1 and feed, then cover tightly hopper lid 1;Before terminating operation, first make For the operation of blanking partition board 3 to front end, it is in closed state to make 2 bottom of hopper, is then shut off blanking driving motor 32, waits for travelling oven When arranging 16 reciprocating actions and making fuel after-flame on moving grate 16 and fixed grate 18 several times, fire grate driving motor 26 is closed, is closed Primary air fan 28 and overfire air fan 34 are closed, smoke exhaust fan 9 is closed after a period of time, finally pulls out middle part ash bucket 23 and end ash bucket Then middle part ash bucket 23 and end ash bucket 20 are packed into burner base and compressed by 20 deashings.

Claims (8)

1. a kind of burner of biomass burning granular fuel, which is characterized in that including hopper (2), be located at below hopper (2) Combustion chamber (11), the equipment box (31) fixed and be connected to combustion chamber (11) rear end side wall, blanking system, combustion system, air-supply System and ignition system;Wherein,
The combustion chamber (11) is equipped with chimney connector (10) and smoke exhaust fan (9) by the top of front end, is located at combustion chamber (11) middle part of interior bottom and end are respectively equipped with middle part ash bucket (23) and end ash bucket (20), are leaned on nearby in the combustion chamber (11) The bottom at end is equipped with ash door (21);
The blanking system includes the blanking partition board (3) touched with the combustion chamber (11) top and hopper (2) bottom connection, with this The sequentially connected blanking drive link (35) of blanking partition board (3), the blanking being located in equipment box (31) drive flywheel (33) and consolidate Blanking driving motor (32) outside equipment box (31) side wall, and the blanking row that is fixed on the side wall of equipment box (31) rear end Cheng Kaiguan (30);
The combustion system includes the furnace grate support (22) being located in combustion chamber (11), is located at the fixation on end ash bucket (20) top Fire grate (18) and the moving grate (16) above middle part ash bucket (23), with the sequentially connected stove in moving grate (16) rear end Row's drive link (24), the fire grate being located in equipment box (31) drive stove flywheel (25) and be fixed on outside equipment box (31) side wall Driving motor (26) is arranged, and the fire grate travel switch (27) being fixed on the side wall of equipment box (31) rear end;Fixed grate (18) Upper surface is contacted with the extension riser lower surface for being fixed on moving grate (16) front end, which passes through fire grate Holder (22) is supported on combustion chamber (11) side wall;It is located at moving grate (16) and fixed grate in the combustion chamber (11) (18) top is equipped with burner hearth (17);
The supply air system is located at the middle part of combustion system and blanking system, including air outlet is located at internal one of equipment box (31) Secondary wind turbine (28), air outlet are located at the internal overfire air fan (34) in combustion chamber (11), are individually fixed in the first of hearth biside wall Secondary Air chamber (12) and second secondary wind chamber (12a) and both ends respectively with overfire air fan (34) air outlet and the first Secondary Air The secondary air channel (5) of chamber connection;Two Secondary Air chambers are distributed with secondary air hole on the side wall of fixed grate (18);
The ignition system is located in the middle part of supply air system and combustion system, including air outlet is located at the point windburn in combustion chamber (11) Machine (29), the igniter (14) being fixed between the first Secondary Air chamber lower surface and moving grate (16) upper surface and connection The igniting air hose (6) of igniting wind turbine (29) and igniter (14).
2. burner described in accordance with the claim 1, it is characterised in that:Described blanking partition board (3) front end is equipped with insulating cement Block (4).
3. burner described in accordance with the claim 1, it is characterised in that:The primary air fan (28) is arranged in equipment box (31) On the side wall of rear end.
4. a kind of burner of biomass burning granular fuel described in accordance with the claim 1, it is characterised in that:The Secondary Air The air outlet direction in hole is obliquely towards burner hearth (17) middle part;It is arranged for ease of blanking at the top of the first Secondary Air chamber (12) Oblique section.
5. burner described in accordance with the claim 1, it is characterised in that:It is described fall ash door (21) be located at the smoke exhaust fan (9) Underface, and close to fixed grate (18) front end, height is slightly above fixed grate (18).
6. burner described in accordance with the claim 1, it is characterised in that:On the moving grate (16) and fixed grate (18) Multiple fire grate ventilating grooves are arranged with, and the quantity on moving grate (16) positioned at front end ventilating groove is more compared with rear end.
7. burner described in accordance with the claim 1, it is characterised in that:Combustion chamber (11) inner top is located at blanking partition board (3) it is additionally provided with baffle (7) at front side.
8. burner described in accordance with the claim 1, it is characterised in that:Integrated Programmadle logic is equipped in the equipment box (31) Controller, power transmission controller and power-supply controller of electric in one integrated control panel, the integrated control panel respectively with each travel switch, Driving motor, igniter and the electrical connection of each wind turbine.
CN201721424086.6U 2017-10-31 2017-10-31 A kind of burner of biomass burning granular fuel Active CN207661759U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721424086.6U CN207661759U (en) 2017-10-31 2017-10-31 A kind of burner of biomass burning granular fuel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721424086.6U CN207661759U (en) 2017-10-31 2017-10-31 A kind of burner of biomass burning granular fuel

Publications (1)

Publication Number Publication Date
CN207661759U true CN207661759U (en) 2018-07-27

Family

ID=62938739

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721424086.6U Active CN207661759U (en) 2017-10-31 2017-10-31 A kind of burner of biomass burning granular fuel

Country Status (1)

Country Link
CN (1) CN207661759U (en)

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