CN2716665Y - Coal gasification smokeless combustion boiler - Google Patents

Abstract

The utility model discloses a coal gasification smokeless combustion boiler, comprising a boiler body, a gas generating chamber, a burner and a burning chamber. The utility model is characterized in that the gas outlet on the center of the flat pipe sheet I on the upper part of the gas generating chamber is communicated with the burning chamber and is opposite to the burner. The upper part of the gas generating chamber is provided with a secondary wind pipe, and the angle of design is 15-30 degrees. The lower part of the burning chamber is provided with a triple wind pipe, the angle of design is 15-30 degrees. The secondary wind pipe on the upper part of the gas generating chamber is communicated to the wind box out of the boiler body from the gas generating chamber. Because two or a plurality of secondary wind pipes are arranged on the upper part of the gas generating chamber, the burner is arranged on the gas outlet of the gas generating chamber, and the triple wind pipe is arranged on the lower part of the burning chamber, compared with prior art, the coal gasification smokeless combustion boiler has the advantages of adapting many kinds of coal, sufficient burning and saving coal more than 20 percents. The dust removing quantity of the chimney is below 80 mg/m3 under standard condition, and theflue gas ringelman blackness is smaller than one grade.

Description

The coal gasification and smokeless combustion boiler

Technical field:

The utility model relates to a kind of boiler plant, particularly a kind of coal gasification and smokeless combustion boiler.

Background technology:

Existing coal gasification combustion boiler, coal adaptability is single, can only fire the carbon piece, but the coal gasification combustion boiler of combustion carbon piece fire diffusing coal, and the coal combustion effect is also very poor even combustion is loose, because of the gas generating chamber of firing the carbon piece higher, the coal seam was thinner when coal was loose in combustion, do not establish secondary air channel in the gas generating chamber again, so combustion efficiency is very poor, and environmental protection is not up to standard.

Summary of the invention:

The utility model technical issues that need to address are that design a kind ofly can be fired bulk coal-fired coal gasification and smokeless combustion boiler again by the coal piece.The technical solution of the utility model is, a kind of coal gasification and smokeless combustion boiler, it comprises body of heater, gas generating chamber, burner, combustion chamber, it is characterized in that: the gas exit at gas generating chamber upper flat tube sheet I center communicates with the combustion chamber and is relative with burner, the top of gas generating chamber is provided with secondary air channel, design angle is the 15-30 degree, and the bottom of combustion chamber is provided with tertiary-air pipe, and design angle is the 15-30 degree.The secondary air channel on gas generating chamber top is in the bellows outside gas generating chamber is communicated to body of heater.The utility model is owing to be provided with secondary air channel on gas generating chamber top, its quantity is 2 or a plurality of, on the gas exit of gas generating chamber, be provided with burner, be provided with tertiary-air pipe in the bottom, combustion chamber, thereby this coal gasification and smokeless combustion boiler has many coals of adaptation compared with the prior art, sufficient combustion, the advantage more than 20% of can economizing on coal.And chimney dust-exhausting quantity 80mg/ does mark m ³Below, the flue gas lingemann blackness is less than 1 grade.

Description of drawings:

Fig. 1 is an outside drawing of the present utility model, and Fig. 2 is the A-A cutaway view of Fig. 1, and Fig. 3 is the B-B cutaway view of Fig. 1, and Fig. 4 is the C-C cutaway view of Fig. 1.

Among the figure: 1. the flat tube sheet II of the flat tube sheet I of body of heater 2. tertiary-air pipe 3. combustion chambers 4. bellows, 5. gas exits, 6. secondary air channels, 7. burners 8. 9. 10. gas generating chamber.

The specific embodiment:

Coal gasification and smokeless combustion boiler of the present utility model; be provided with flat tube sheet I8 peace tube sheet II9 at body of heater 1 middle part; gas generating chamber 10 and combustion chamber 3 is separated; the top of gas generating chamber 10 is provided with secondary air channel 6; design angle is the 15-30 degree; use and make flame rotation rising when loosing coal, most particle dust been separated in the gas generating chamber 10 under action of centrifugal force, and make burning more abundant after joining secondary wind.The center of flat tube sheet I8 peace tube sheet II9 is provided with gas exit 5, gas generating chamber 10 and combustion chamber 3 are communicated with, 3 bottom is provided with tertiary-air pipe 2 and burner 7 in the combustion chamber, burner 7 is relative with gas exit 5, the effect of burner 7 is to improve ignition temperature, help gas-fired, for making the even of coal gas and oxygen mix, the design angle of tertiary-air pipe 2 is the 15-30 degree, when coal gas when gas exit 5 enters combustion chamber 3, under the effect of tertiary-air pipe 2 and burner 7, make the flame rotary combustion.Can adjust the wind supply quantity of secondary wind and tertiary air in the combustion process according to the color of flame.

Method of operating of the present utility model is, the coal seam of gas generating chamber is thick when using the carbon piece, at this moment will close secondary wind, only supplies with tertiary air, and the size of tertiary air quantity is adjusted according to the color of flame.When using when loosing coal, the coal seam of gas generating chamber will approach, and at this moment will open secondary wind, and is crack or close tertiary air, and the quantity delivered of secondary wind and tertiary air will the color according to flame be adjusted in combustion process, makes burning more abundant.The utility model is compared with present coal-burning boiler, has to adapt to many coals, and sufficient combustion, the advantage more than 20% of can economizing on coal.The utility model is done mark m at the situation lower stack outlet smoke content 80mg/ that does not adorn deduster ³Below, the flue gas lingemann blackness is less than 1 grade.And meet the policy that national the Tenth Five-Year Plan (2001-2005) outline proposes " saving and alternative fuel oil ".

Claims (2)

1. coal gasification and smokeless combustion boiler, it comprises body of heater, gas generating chamber, burner, combustion chamber, it is characterized in that: the gas exit at gas generating chamber upper flat tube sheet I center communicates with the combustion chamber and is relative with burner, the top of gas generating chamber is provided with secondary air channel, design angle is the 15-30 degree, the bottom of combustion chamber is provided with tertiary-air pipe, and design angle is the 15-30 degree.

2. coal gasification and smokeless combustion boiler according to claim 1 is characterized in that: the secondary air channel on gas generating chamber top, and in the bellows outside gas generating chamber is communicated to body of heater.