CN201242172Y

CN201242172Y - Biomass gas generator

Info

Publication number: CN201242172Y
Application number: CN 200820025583
Authority: CN
Inventors: 慈斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-15
Filing date: 2008-07-15
Publication date: 2009-05-20
Anticipated expiration: 2018-07-15

Abstract

The utility model discloses a biomass gas generator, which comprises a furnace body, a furnace lid, a furnace grate, a furnace door, a gas output port, a blanking device and an air inlet device, wherein the furnace grate is fixed on an air fountain of the air inlet device, and a fumarole on the air fountain is not higher than the furnace grate. The furnace grate and the air fountain of the biomass gas generator are designed into a whole, after the furnace grate is burnt out, the furnace grate and the air fountain are taken out and replaced together, the furnace body can not be broken, the replacement is convenient, biomass fuel is located on the furnace grate, is reacted completely to form furnace dust, and then can fall on the bottom of a hearth from a slot on the furnace grate, the fumarole can not be blocked, the edge of an air shutting plate also can prevent fallen dust from entering the fumarole, air ventilation is smooth, the ventilation effect is good, and the gas conversion rate is high.

Description

A kind of biomass fuel gas generator

Technical field

The utility model relates to a kind of gas generator, particularly a kind of biomass fuel gas generator that utilizes stalk etc. to make fuel.

Background technology

Current energy crisis and environmental crisis are two challenges greatly that we face, and the development and use biomass energy has important practical sense to solving these crises.China rural area, annual all have a large amount of stalks to be burnt in vain, both wasted resource, polluted environment again, biological stalk matter has that volume is big, light weight, transportation store inconvenient characteristics, and wants compound stalk forming collecting, pulverize, consuming great amount of manpower and material resources, place and the energy in the drying, moulding again.As the agricultural crop straw that the living beings of China's maximum are originated, the huge numbers of families of originating in the rural area directly are converted into the biological fuel gas that can use in the huge numbers of families family of rural area on the spot, become the new forms of energy in rural area, are the useful approach of development and use bioenergy.

At present, have a kind of domestic biomass gas generator, the air nozzle of this speciogenesis device directly is embedded in the ash, and the fumarole on the air nozzle stops up easily, ventilation effect is poor, the conversion ratio of combustion gas is low, and the tar of generation is many, also has fire grate is set in burner hearth, fire grate is fixed on the body of heater, after fire grate burns out, need to destroy body of heater and could change fire grate, it is very inconvenient to change fire grate.

Summary of the invention

The technical problems to be solved in the utility model is: the biomass fuel that a kind of fire grate is changed easily, ventilation effect is good, the combustion gas conversion ratio is high gas generator is provided.

In order to solve the problems of the technologies described above, the utility model comprises body of heater, bell, fire grate, fire door, combustion gas delivery outlet, doffer and air-intake device, and described fire grate is fixed on the air nozzle of air-intake device, and the fumarole on the air nozzle is not higher than fire grate.

In order better to stop dust to enter fumarole, the sidewall of described air nozzle is provided with a plurality of described fumaroles, and air nozzle top flap has choke plate, and the edge of choke plate reaches outside the sidewall of air nozzle.

Install for convenience and change, described fire grate is fixed on the choke plate, and choke plate and air nozzle fix, and air nozzle is connected with the airduct of air-intake device by elbow, and elbow all adopts with air nozzle and airduct and is threaded.

In order to make slag descending smoothly, air is smooth and easy up, and described fire grate comprises two bar shaped fire grates and an annular fire grate, and two bar shaped fire grates are separately fixed at the both sides of choke plate, the end of bar shaped fire grate is fixed on the annular fire grate, and certain grey gap that falls is arranged outside the edge of annular fire grate.

For improving the reaction speed of biomass fuel, on the described inboard wall of furnace body heat-insulation layer is arranged, formation one top is that little tube, centre are the burner hearth of up big and down small taper type for big tube, bottom in the heat-insulation layer.

In order to make heat-insulation layer solid firm, described heat-insulation layer adopts seat clay or yellow mud.

For the ease of reinforced, when reinforced, expect can not fall in the water sealed tank, include charging hopper, charging hopper can be inserted in the charge door on the body of heater.And can increase combustion space, when generator is not worked, utilize generator waste heat drying fuel, thereby make charging hopper become baker.

The beneficial effects of the utility model are: the utility model fire grate and air nozzle are designed to one, after fire grate burns out, fire grate and air nozzle are taken out replacing together, can not destroy body of heater, it is convenient to change, biomass fuel all is on the fire grate, and the biomass fuel complete reaction can be fallen burner hearth bottom the seam from fire grate after forming ashes, can not block fumarole, and the edge of choke plate can stop that also the dust of whereabouts enters fumarole, make that ventilation is smooth and easy, ventilation effect is good, combustion gas conversion ratio height; And the utility model design has heat-insulation layer and charging hopper, high insulating effect, be convenient to feed in raw material, be convenient to tar is utilized once more, can dispose the tar that its gas generation process produces fully, can not cause secondary pollution, can utilize the heat oven dry material of this generator self to make it to reach the aerogenesis needs, simple in structure, fuel source is extensive, cheap, make easily, factor of created gase is high, volume gas little, simple to operate, that can uninterruptedly use, also can be used for booth breeding and planting heating, good reliability, output for a long time is clean.

Description of drawings

Fig. 1, Fig. 3 are the utility model two states structural representations; Fig. 2 is the plan structure schematic diagram of the utility model fire grate and choke plate;

Among the figure: 1, combustion gas delivery outlet, 2, hollow bolt, 3, bell, 4, water sealed tank, 5, combustion gas delivery outlet, 6, body of heater, 7, the blanking bar, 8, feeding plate, 9, heat-insulation layer, 10, choke plate, 11, fire grate, 12, fire door, 13, fumarole, 14, air nozzle, 15, airduct, 16, zoneofoxidation, 17, the reducing zone, 18, pyrolysis zone, 19, dry section, 20, charging hopper.

The specific embodiment

A kind of specific embodiment as shown in Figure 1, it comprises body of heater 6, bell 3, fire door 12, combustion gas delivery outlet 1,5, doffer, air-intake device, fire grate 11 and charging hopper 20.

The end face of body of heater 6 is provided with charge door, is provided with a circle water sealed tank 4 around the charge door, and during lid bell 3, bell 3 will be inserted in the water sealed tank 4, avoids leaking gas around the bell 3.Two combustion gas delivery outlets 1,5 are arranged on the end face of body of heater 6.

Be provided with heat-insulation layer 9 in the body of heater 6, formation one top is that little tube, centre are that the burner hearth of up big and down small taper type, heat-insulation layer 9 can adopt common seat clay or yellow mud to make for big tube, bottom in the heat-insulation layer 9.

Fire door 12 is arranged on the bottom of body of heater 6.

Air-intake device comprises airduct 15, elbow and air nozzle 14, air nozzle 14 is arranged in the burner hearth, airduct 15 is inserted in the burner hearth, airduct 15 is provided with valve, airduct 15 and air nozzle 14 are connected by elbow, elbow all adopts with airduct 15 and air nozzle 14 and is threaded, air nozzle 14 is a cylinder, the sidewall of air nozzle 14 is provided with a plurality of fumaroles 13, be fixed with circular choke plate 10 on the top mouth of air nozzle 14, the diameter of choke plate 10 makes the edge of choke plate 10 reach outside the sidewall of air nozzle 14 greater than the diameter of air nozzle 14, can block dust, avoid dust to enter fumarole 13.As shown in Figure 2, fire grate 11 comprises two bar shaped fire grates and an annular fire grate, and two bar shaped fire grates are separately fixed at the both sides of choke plate 10, and the end of bar shaped fire grate is fixed on the annular fire grate, between annular fire grate and burner hearth certain clearance is arranged, and is beneficial to ash.According to the size of burner hearth, the annular fire grate that fire grate 11 can have a plurality of radiuses not wait connects into an integral body by two bar shaped fire grates.In the burner hearth, up be divided into zoneofoxidation 16, reducing zone 17, pyrolysis zone 18 and dry section 19 successively from fire grate 11.

Doffer comprises blanking bar 7 and feeding plate 8, and feeding plate 8 is fixed on the lower end of blanking bar 7, is fixed with hollow bolt 2 on the bell 3, blanking bar 7 is through in the hollow bolt 2, pull blanking bar 7 drive feeding plates 8 move up and down up and down, and biomass fuel is fallen, and avoid burning.

As shown in Figure 3, charging hopper 20 can be inserted in the charge door on body of heater 6 end faces.

Using method: build bell 3 in the time of need using combustion gas daytime, opens the valve on the airduct 15, make biomass fuel carry out oxidation, reduction, pyrolysis in burner hearth, produce combustion gas, combustion gas is from 1 output of combustion gas delivery outlet, behind the tar, use after filtration for the people.Take off bell 3 when not needing to use combustion gas evening, and charging hopper 20 is being placed on the charge door, reinforced to burner hearth, until piling with charging hopper 20, closes the valve on combustion gas delivery outlet 1 and the airduct, and biomass fuel is dried.The tar that filters out can mix with biomass fuel, recycling.

Claims

1. biomass fuel gas generator, comprise body of heater (6), bell (3), fire grate (11), fire door (12), combustion gas delivery outlet (1,5), doffer and air-intake device, it is characterized in that: described fire grate (11) is fixed on the air nozzle (13) of air-intake device, and the fumarole (13) on the air nozzle (13) is not higher than fire grate (11).

2. biomass fuel gas generator according to claim 1, it is characterized in that: the sidewall of described air nozzle (1) is provided with a plurality of described fumaroles (13), air nozzle (1) top flap has choke plate (10), and the edge of choke plate (10) reaches outside the sidewall of air nozzle (14).

3. biomass fuel gas generator according to claim 2, it is characterized in that: described fire grate (11) is fixed on the choke plate (10), choke plate (10) fixes with air nozzle (14), air nozzle (14) is connected with the airduct (15) of air-intake device by elbow, and elbow all adopts with air nozzle (14) and airduct and is threaded.

4. according to claim 2 or 3 described biomass fuel gas generators, it is characterized in that: described fire grate (11) comprises two bar shaped fire grates and an annular fire grate, two bar shaped fire grates are separately fixed at the both sides of choke plate (10), the end of bar shaped fire grate is fixed on the annular fire grate, and certain grey gap that falls is arranged outside the edge of annular fire grate.

5. according to claim 1,2 or 3 described biomass fuel gas generators, it is characterized in that: on described body of heater (6) inwall heat-insulation layer (9) is arranged, formation one top is that little tube, centre are the burner hearth of up big and down small taper type for big tube, bottom in the heat-insulation layer (9).

6. biomass fuel gas generator according to claim 5 is characterized in that: described heat-insulation layer adopts seat clay or yellow mud.

7. according to claim 1,2 or 3 described biomass fuel gas generators, it is characterized in that: include charging hopper (20), charging hopper (20) can be inserted in the charge door on the body of heater (6).