CN201285034Y

CN201285034Y - Biomass combustor

Info

Publication number: CN201285034Y
Application number: CNU2008201489369U
Authority: CN
Inventors: 赵陆凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-02
Filing date: 2008-09-02
Publication date: 2009-08-05
Anticipated expiration: 2018-09-02

Abstract

The utility model discloses a biomass combustor comprising a combustion chamber, a feeding mechanism, electric control equipment and an air distributing device; the inner cavity of the combustion chamber comprises a fixed bed and a jet zone; the side wall of the combustion chamber is also provided with a jet cavity with one end being a flame jet nozzle and the other end communicated with the jet zone; the feeding mechanism comprises a feeding rod arranged in a feeding channel, and one end of the feeding rod is connected with a driving motor; the air distributing device adopts a third air distributing design; and the electric control equipment intensively controls the feeding mechanism and an air feeding mechanism of the air distributing device. By adopting biomass materials with low cost to generate stable high temperature flame, the utility model can be used as heating equipment of industry equipment, such as boilers, kilns, and the like.

Description

Biomass burner

Technical field

The utility model relates to industrial firing equipment field, especially relates to a kind of biomass burner.

Background technology

China is a large agricultural country, biomass resource is abundant, has a large amount of various biomass materials such as corn stalk, rice husk, peanut shell, corncob, sawdust, wood shavings, papermaking waste material etc., at present, handle the method or the direct chopping and returning of this biolobic material raw material, or directly burning utilizes.Directly Ran Shao efficiency of combustion is very low, and produces the exhaust emission environment that does not much have after-flame.The most ancient biomass burner be exactly the common pot and stove of burning firewood use burner hearth, this original burner hearth uses the air-supply of pull bar bellows, efficiency of combustion is extremely low, flame is not concentrated, combustion instability can only be used for common heating and cooks.Face the epoch of lack of energy in the world today, how the biomass resource of cheapness being carried out large-scale commercial Application is a research topic that is significant, and not only utilizes alleviating energy crisis, and utilizes environmental protection.Prior biological matter burner all exists efficiency of combustion low, combustion instability, and flame temperature is low, can't carry out the defective of commercial Application.

The utility model content

In view of this, the purpose of this utility model is to provide a kind of biomass burner, has avoided the defective of prior art, improves the stability of efficiency of combustion and burning, is that combustion flame is concentrated, stable, temperature is high, thereby reaches the purpose of commercial Application.

For achieving the above object, the utility model by the following technical solutions:

Biomass burner of the present utility model comprises combustion chamber, feeding propulsive mechanism, control panel and air-distribution device; Described combustion chamber inner chamber comprises fixed bed and fluerics, and the fixed bed bottom is the vertical section of bar shape, and top is the diffuser of back taper, wherein, on the sidewall of diffuser feeding channel is set, and the top of diffuser is communicated with the fluerics of bar shape; Sidewall of combustion chamber also is provided with the jet spray chamber, and an end of jet spray chamber is a flame-thrower nozzle, and the other end is communicated with the fluerics; Control panel comprises drive motors and blower fan; The feeding propulsive mechanism comprises the pushing ram that is arranged in the described feeding channel, and an end of pushing ram links to each other with drive motors; Air-distribution device is divided into air distribution plate, air compartment, flame injection air outlet and feeding channel air outlet, and air compartment is arranged at the bottom of fixed bed and communicates with the vertical section of described fixed bed by air distribution plate; Flame sprays air outlet and is arranged on the position of jet spray chamber near flame-thrower nozzle, and the feeding channel air outlet is arranged on the feeding channel sidewall; The air outlet of blower fan sprays air outlet with air compartment, flame respectively and the feeding channel air outlet is connected.

Further, the vertical section of described fixed bed is a cylindrical shape, and it is round table-like that the diffuser of fixed bed becomes, and the fluerics is a cylindrical shape.

Further, jet spray chamber and feeding channel are cylindric, and flame sprays air outlet and feeding channel air outlet respectively along the tangential direction setting of jet spray chamber and feeding channel sidewall.

Further, described air distribution plate comprises two, and two air distribution plates all are obliquely installed with horizontal plane is angled.

The beneficial effects of the utility model are: the utility model adopts three air distribution designs, and adopts tangent line cyclone mode air distribution, makes the efficiency of combustion height, flame stabilization, and flame high temperature section temperature improves greatly, is applicable to commercial Application; The fixed bed of combustion chamber inner chamber, fluerics, jet spray chamber, flame-thrower nozzle, feeding channel are reasonable in design, have improved the fluid effect of living beings in the combustion chamber, and fuel gas pressure is suitable, stable in the combustion chamber, and burning tempering does not take place and takes off fire; After the abundant fluidisation of living beings, tar etc. directly burn with the form of gaseous state, the water pollution once again of having avoided washing tar to bring.

Other advantages of the present utility model, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can be passed through following specification, claims, and the specifically noted structure realizes and obtains in the accompanying drawing.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the side view of Fig. 1.

The specific embodiment

Comprise combustion chamber 1, feeding propulsive mechanism, control panel and air-distribution device when as shown in drawings, biomass burner of the present utility model is implemented.Wherein, combustion chamber 1 is a large thick-wall container, and the chamber wall of combustion chamber mainly adopts the high refractory material of heat-insulating property to make.The inner chamber of combustion chamber 1 comprises fixed bed and fluerics 4.The bottom of described fixed bed is the vertical section 2 of cylindrical shape, and its diameter is 250mm, highly is 200mm; The top of described fixed bed is down round table-like diffuser 3, the lower port diameter of diffuser 3 is identical with vertical section 2 diameters of described fixed bed, the upper port diameter of diffuser 3 is 400mm, the height of diffuser 3 is 120mm, feeding channel 15 is set on the sidewall of diffuser 3, and the top of diffuser 3 is communicated with the fluerics of cylindrical shape 4; Fluerics 4 diameters are 400mm, highly are 280mm.The sidewall of combustion chamber 1 also is provided with jet spray chamber 5, and the diameter of jet spray chamber 5 is 165mm, and an end of jet spray chamber 5 is a flame-thrower nozzle 6, and the other end is communicated with fluerics 4.During enforcement, control panel of the present utility model comprises two cover drive motors, be feeding motor 11 and deslagging motor 12, certainly also comprise air blast (not drawing among the figure), during enforcement, the switch of feeding motor 11 and deslagging motor 12 and air blast all is arranged in the electrical control cubicles and uses with handled easily.Described feeding propulsive mechanism comprises a hopper 13 that is arranged on the helical form pushing ram 14 in the feeding channel 15 and is arranged on feeding channel 15 1 sides, and main shaft one end of pushing ram 14 and feeding motor 11 link to each other by belt transmission agency.Air-distribution device is divided into air distribution plate 9, air compartment 8, flame injection air outlet 7 and feeding channel air outlet 10.Air compartment 8 is arranged at the bottom of fixed bed 2 and communicates with the vertical section 2 of described fixed bed by air distribution plate 9; Flame sprays air outlet 7 and is arranged on the position of jet spray chamber 5 near flame-thrower nozzle 6, feeding channel air outlet 10 is arranged on feeding channel 15 sidewalls, flame injection air outlet 7 and feeding channel air outlet 10 along the tangential direction setting of jet spray chamber 5 and feeding channel 15 sidewalls, produce spiral-flow type air distribution effect respectively during air distribution; Air blast can adopt the form of concentrating air-supply, the air outlet of air blast sprays air outlet 7 with air compartment 8, flame respectively and feeding channel air outlet 10 is connected, can certainly adopt respectively the form of air-supply, air compartment 8, flame spray air outlet 7 and feeding channel air outlet 10 and link to each other with the air outlet of separately air blast respectively.During enforcement, air distribution plate 9 adopts two blocks of steel plates that thickness is 15mm, two air distribution plates become miter angle to fixedly install (angle of inclination can according to circumstances change) obliquely with horizontal plane, the aperture that is covered with the usefulness of blowing on the steel plate, two air distribution plates are oppositely arranged, and the air that blows from two air distribution plates agitates mixing mutually, is unlikely to directly to blow to the living beings of fixed bed vertical section 2, making that like this cloth wind is even, is the living beings active fluidization that is positioned at the living beings of fixed bed vertical section 2.During use, fixed bed vertical section 2 is as the burner hearth of biomass combustion, biomass material constantly drops into from hopper 13, feeding motor 11 promotes helical form pushing ram 14 biomass material is advanced burner hearth, biomass material can adopt moisture content less than 30%, size is less than the various biomass materials of 30mm, as corn stalk, rice husk, peanut shell, corncob, sawdust, wood shavings, papermaking waste material or the like, biomass material is in burner hearth after the fluidisation, the fuel gas ascension, in fluerics 4, assemble and form certain normal pressure, after flame-thrower nozzle 6 igniting, be the sustainable supply thermal-flame under the cooperation of air-distribution device, use can drive deslagging catch bar 17 then by startup deslagging motor 12 and take slag to slag-drip opening 16.The advantage of present embodiment is as follows:

1. complete efficient height burns: the boiling type gasification, and combustion adds the design of tangent line spiral-flow type air distribution, makes the combustor burning fully, and efficiency of combustion can reach more than 95%.

2. burning is complete, stable: equipment moves under slight positive pressure state, tempering does not take place and take off fiery phenomenon.

3. adaptability to raw material is wide, abundant raw material and cheapness.

4. pollution-free environmental benefit is obvious: with the renewable biomass energy is fuel, has realized the sustainable use of the energy, has reduced discharge of harmful gases.

5. do not have various waste discharges such as tar, waste water: adopt the direct combustion technology of high-temperature fuel gas, tar etc. directly burn with the form of gaseous state, have solved the high technical barrier of biomass gasification tar content, the water pollution once again of having avoided washing tar to bring.

6. simple to operate, easy to maintenance: adopt autofeed, the wind-force ash disposal, simple to operate, workload is little, and the solo operation gets final product.

7. heating-up temperature height: present technique adopts three air distributions, can produce continuously by continuous feeding, and flame stabilization, the high temperature section temperature can reach 1300 ℃, is suitable for industrial applications.

8. equipment applied range: be applicable to civil boiler, small hydropower station boiler, kiln or other firing equipment.

9. small investment, operating cost is low: reduce 30%-40% than coal-burning boiler heating cost during operation, reduce 50%-70% than oil burning boiler heating cost.

The utility model is fit to civil boiler, small hydropower station boiler, kiln or other firing equipment; the concrete size of the jet spray chamber on combustion chamber inner chamber, the sidewall of combustion chamber and other position of burner, parts can be carried out design variation according to the evaporation capacity of boiler in the detailed programs, but all belongs to the claimed product of the utility model.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, other modifications that those of ordinary skills make the technical solution of the utility model or be equal to replacement, only otherwise break away from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. biomass burner, it is characterized in that: this biomass burner comprises combustion chamber, feeding propulsive mechanism, control panel and air-distribution device; Described combustion chamber inner chamber comprises fixed bed and fluerics, and the fixed bed bottom is the vertical section of bar shape, and top is the diffuser of back taper, wherein, on the sidewall of diffuser feeding channel is set, and the top of diffuser is communicated with the fluerics of bar shape; Sidewall of combustion chamber also is provided with the jet spray chamber, and an end of jet spray chamber is a flame-thrower nozzle, and the other end is communicated with the fluerics; Control panel comprises drive motors and blower fan; The feeding propulsive mechanism comprises the pushing ram that is arranged in the described feeding channel, and an end of pushing ram links to each other with drive motors; Air-distribution device is divided into air distribution plate, air compartment, flame injection air outlet and feeding channel air outlet, and air compartment is arranged at the bottom of fixed bed and communicates with the vertical section of described fixed bed by air distribution plate; Flame sprays air outlet and is arranged on the position of jet spray chamber near flame-thrower nozzle, and the feeding channel air outlet is arranged on the feeding channel sidewall; The air outlet of blower fan sprays air outlet with air compartment, flame respectively and the feeding channel air outlet is connected.

2. biomass burner according to claim 1 is characterized in that: the vertical section of described fixed bed is a cylindrical shape, and it is round table-like that the diffuser of fixed bed becomes, and the fluerics is a cylindrical shape.

3. biomass burner according to claim 2 is characterized in that: jet spray chamber and feeding channel are cylindric, and flame sprays air outlet and feeding channel air outlet respectively along the tangential direction setting of jet spray chamber and feeding channel sidewall.

4. biomass burner according to claim 3 is characterized in that: described air distribution plate comprises two, and two air distribution plates all are obliquely installed with horizontal plane is angled.