CN201262390Y

CN201262390Y - Stalk gasification combustor

Info

Publication number: CN201262390Y
Application number: CNU2008200151995U
Authority: CN
Inventors: 庞明礼
Original assignee: SHENYANG REDEFU STRAW BURNING TECHNOLOGY Co Ltd
Current assignee: C.A.S Zhongli Sci.& Tech. Co., Ltd.
Priority date: 2008-08-25
Filing date: 2008-08-25
Publication date: 2009-06-24
Anticipated expiration: 2018-08-25

Abstract

A straw gasification burner relates to an improvement of a straw burner structure. The utility model aims at providing a straw gasification burner which is more suitable to straw burning and has high combustion efficiency. The straw gasification burner comprises a furnace body which is internally provided with a combustion chamber, and the structural key points of the burner are as follows: the bottom of the combustion chamber is provided with a slag-falling baffle plate, and an outlet at the bottom of the slag-falling baffle plate is provided with a slagging screw; a secondary air duct is arranged between a furnace wall with a vent of the combustion chamber and a shell of the furnace body; the outlet of the combustion chamber is a swirling spout with spiral vanes; and a feed opening of the combustion chamber is provided with an electric heater which is connected with a feed delivery pipe, the interior of the feed delivery pipe is provided with a feeding screw and the upper part thereof is provided with a fuel bin; and the feeding screw is internally provided with an ignition air duct.

Description

A kind of straw gasification combustor

Technical field:

The utility model relates to the improvement of straw burning device structure.

Background technology:

Present straw burning device has multiple, but great majority are continued to use the burning form of coal stove, is difficult to performance straw burning characteristic, and therefore, efficiency of combustion is not high.

The utility model content:

The utility model is exactly at the problems referred to above, and a kind of straw burning and high straw gasification combustor of efficiency of combustion of being more suitable for is provided.

For achieving the above object, the utility model adopts following technical scheme, and the utility model comprises body of heater, is the combustion chamber in the body of heater, and its structural feature is that the bottom of combustion chamber is the slag baffle plate that falls with air vent, and the outlet at bottom place of the slag baffle plate that falls is the screw rod of slagging tap; The furnace wall with air vent of combustion chamber is with being secondary air duct between the furnace body shell; The outlet of combustion chamber is the eddy flow spout with helical blade; The feeding mouth place of combustion chamber is provided with electric heater, electric heater with in have feeding spiro rod, on have a Bunker conveying pipeline link to each other, be provided with ignition air duct in the feeding spiro rod.

The beneficial effects of the utility model:

1, efficiency of combustion height:

The air vent of the utility model by the slag baffle plate that falls enters a wind in the combustion chamber, reach the secondary wind that enters the combustion chamber by the air vent on the furnace wall, make fuel in the combustion chamber, form strong vortex, at this moment, fuel fully mixes with air, has not only prolonged burning time, and, make full combustion of fuel, improved efficiency of combustion;

2, igniting is simple:

During the utility model igniting, utilize the electric heater heating fuel, the ignition air duct in feeding spiro rod feeds micro-wind then, makes ignited fuel, and therefore, ignition process is simple;

3, fan-out capability is strong:

Because exit of the present utility model is provided with the eddy flow spout with helical blade, the whirlwind of the height of sending rotation, high-temperature is easier to heat heated equipment;

4, deslagging is effective:

The utility model adopts the screw rod deslagging of slagging tap, and makes the residue of stalk be not easy to accumulate, and discharge at any time also helps simultaneously good combustion efficiency;

5, be widely used:

Because the utility model combustion efficiency is good, can be widely used in the improvement of various stoves, its operating cost is lower by 40% than coal-burning boiler, than oil burning boiler low 70%.

Description of drawings:

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

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the B-B cutaway view of Fig. 1;

Fig. 4 is that the K of Fig. 1 is to view.

The specific embodiment:

The utility model comprises body of heater 13, is combustion chamber 12 in the body of heater 13, and the bottom of combustion chamber 12 is the slag baffle plate 2 that falls with air vent 3, and outlet at bottom 1 place of the slag baffle plate 2 that falls is the screw rod 21 of slagging tap; The furnace wall with air vent 10 14 of combustion chamber 12 is with being secondary air duct 16 between body of heater 13 housings 15; The outlet of combustion chamber 12 is the eddy flow spout 17 with helical blade 25; The feeding mouth place of combustion chamber 12 is provided with electric heater 9, electric heater 9 with in have feeding spiro rod 5, on have a Bunker 6 conveying pipeline 7 link to each other, be provided with ignition air duct 4 in the feeding spiro rod 5.

Air pump 19 links to each other with secondary air duct 16 by pipeline 20; Air pump 19 links to each other with the ignition air duct in the feeding spiro rod 54 by the pipeline 18 with switch valve 22.

Be the deslagging better effects if, can be provided with three screw rods 21 of slagging tap in the bottom of the slag baffle plate 2 that falls; Slagging tap screw rod 21 and feeding spiro rod 5 all can be by 23 driving of same motor.

Outside the bottom of body of heater 13, slag baffle plate 2 places that fall relatively are provided with blower fan 24; Fall air vent 3 air-supply of slag baffle plate 2 of 24 pairs of blower fans.

Air vent 10 is oblique following; Make the flue gas formation in the combustion chamber 12 move downward vortex, fuel combustion is more abundant.

The top of body of heater 13 is provided with form 11, so that observe the combustion case in the combustion chamber 12.

Below in conjunction with a description of drawings course of action of the present utility model:

Send into stalk fuel by Bunker 6, it is sent in the combustion chamber 12 through feeding spiro rod 5; Start electric heater 9, stalk fuel is heated when being preheated to 300 ℃-400 ℃, open switch valve 22 and be blown into micro-wind, the stalk of the dark combustion of gasifying is blown out naked light, thus the fuel in the ignition combustion chamber 12.At this moment, close electric heater 9, open feeding spiro rod 5 simultaneously, blower fan 24 is sent into a wind in the combustion chamber 12 by the air vent 3 on the slag baffle plate 2 that falls.Secondary wind is sent into 20-36KPa by air pump 19 and is pressed wind-force, and the pressure air of secondary wind is preheating to 90 ℃-380 ℃ through furnace wall 14, adopts ejector principle, tangentially enters combustion chamber 12 by air vent 10, forms the vortex that moves downward; In the decline process, combine, send by eddy flow spout 17 with volatilization gas and fuel in the flame; Under cyclonic action, unburnt particle and soot particle are separated in the flame, fall into slag baffle plate 2, by screw rod 21 outputs of slagging tap.

Claims

1, a kind of straw gasification combustor, comprise body of heater (13), in the body of heater (13) is combustion chamber (12), and the bottom that it is characterized in that combustion chamber (12) is for having the slag baffle plate (2) that falls of air vent (3), and the outlet at bottom (1) of slag baffle plate (2) that fall locates to be the screw rod of slagging tap (21); Be secondary air duct (16) between the same body of heater in furnace wall with air vent (10) (14) (13) housing (15) of combustion chamber (12); The outlet of combustion chamber (12) is for having the eddy flow spout (17) of helical blade (25); The feeding mouth place of combustion chamber (12) is provided with electric heater (9), electric heater (9) with in have feeding spiro rod (5), on have Bunker (6) conveying pipeline (7) link to each other, be provided with ignition air duct (4) in the feeding spiro rod (5).

2, a kind of straw gasification combustor according to claim 1 is characterized in that air pump (19) links to each other by the same secondary air duct of pipeline (20) (16).

3, a kind of straw gasification combustor according to claim 1 is characterized in that air pump (19) links to each other by the ignition air duct (4) in the same feeding spiro rod of pipeline (18) (5) with switch valve (22).

4, a kind of straw gasification combustor according to claim 1 is characterized in that being provided with three screw rods of slagging tap (21) in the bottom of the slag baffle plate (2) that falls.

5, a kind of straw gasification combustor according to claim 1, it is characterized in that slagging tap screw rod (21) and feeding spiro rod (5) drive by same motor (23).

6, a kind of straw gasification combustor according to claim 1 is characterized in that outside the bottom of body of heater (13), and the slag baffle plate (2) that falls relatively locates to be provided with blower fan (24).

7, a kind of straw gasification combustor according to claim 1 is characterized in that air vent (10) is under oblique.