CN101922716A - Coal water slurry and decoction dreg mixed burning boiler - Google Patents
Coal water slurry and decoction dreg mixed burning boiler Download PDFInfo
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- CN101922716A CN101922716A CN2009100159746A CN200910015974A CN101922716A CN 101922716 A CN101922716 A CN 101922716A CN 2009100159746 A CN2009100159746 A CN 2009100159746A CN 200910015974 A CN200910015974 A CN 200910015974A CN 101922716 A CN101922716 A CN 101922716A
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Abstract
The invention relates to a boiler, in particular to the boiler which can fully burn decoction dreg and industrial wastes similar to the decoction dreg, and provides a novel coal water slurry and decoction dreg mixed burning boiler. The boiler comprises a burner and a boiler body, wherein the bottom of the boiler is provided with a chain grate; the grate consists of chain wheels and chains wound on the chain wheels respectively; bellows are arranged below the upper chain at intervals; and the burner is arranged diagonally above the boiler. The boiler can fully burn the industrial wastes such as the decoction dreg, wood flour, saw powder, straws and the like, fully utilize the high temperature of smoke produced by burning, improve the burn-off rate of the decoction dreg and the heat efficiency of the boiler, reduce the pollution on environment and reduce the operating cost of the boiler.
Description
Technical field
The present invention relates to a kind of boiler, especially a kind of boiler of industrial waste of be used for fully the burning dregs of a decoction and the similar dregs of a decoction.
Background technology
Be accompanied by the fast development of suitability for industrialized production, various industrial wastes arise at the historic moment, and the dregs of a decoction, wood powder, saw powder and stalk etc. are exactly a large amount of a kind of industrial wastes that produce in the suitability for industrialized production.The processing method of the dregs of a decoction generally adopts landfill or burning at present, and wherein landfill need expend a large amount of man power and materials, and environment is caused bigger pollution, has improved the processing cost of the dregs of a decoction, and has increased the operation cost of factory.Therefore present most of factory adopts the mode of burning to handle above-mentioned industrial waste, and when still with plain cylindrical furnace it being burnt, the combustion efficiency of industrial wastes such as the dregs of a decoction is poor, and burn-off rate is low, so poor processing effect.
Summary of the invention
The objective of the invention is to propose a kind of novel coal water slurry and decoction dreg mixed burning boiler, this boiler can make industrial wastes such as the dregs of a decoction, wood powder, saw powder, stalk fully burn, and can make full use of the high temperature of the flue gas of burning generation, the burn-off rate and the boiler thermal output of the dregs of a decoction have been improved, reduced pollution, reduced the operation cost of boiler environment.
The present invention adopts following technical scheme to realize: a kind of coal water slurry and decoction dreg mixed burning boiler, comprise burner and boiler furnace, wherein, described boiler bottom is installed traveling-grate stoker, described fire grate by sprocket wheel and the chain that is wrapped in respectively on the sprocket wheel form, it is provided with bellows in below of chain at the middle and upper levels at interval, and described burner is arranged on the oblique upper of boiler.
Described boiler setting is provided with 2-5 soot blower, and soot blower can in time purge and be hung on flying dust on the boiler furnace, prevents to cause the blowing out coke cleaning owing to the flying dust wall built-up forms coking, reduces the operating efficiency of boiler.
Described chain fire-gate forward lower part is provided with ash dropping hopper.Along with the continuous rotation of chain along sprocket wheel, the ashes that drop on the fire grate constantly drop down onto in the ash dropping hopper of traveling-grate stoker front end.
Water-cooling wall vertically is set on the described boiler inner wall.After water-coal-slurry and the dregs of a decoction burner by the boiler oblique upper enters boiler furnace, spray burning under the effect of air blast and gravity, the high-temperature flue gas that the burning back produces constantly rises, and its heat radiation heats the water in the water-cooling wall to water-cooling wall simultaneously.
Described boiler internal is provided with the multiple tracks furnace wall, and the high-temperature flue gas that burning is produced by the multiple tracks furnace wall constantly moves in circles at boiler internal, makes water cooler can fully absorb the heat of high-temperature flue gas.Boiler tail is equipped with air preheater.The high-temperature flue gas that burning produces is through after the continuous circulation of boiler internal, the air preheater of process boiler tail under the air-introduced machine effect, amount of residual heat will by high-temperature flue gas will be to sending into the air heat that helps burning in the burner hearth, both make full use of flue gas heat, and can improve the efficiency of combustion of the dregs of a decoction again.
During this boiler work, the dregs of a decoction, wood powder, saw powder or stalk etc. and water-coal-slurry are sent in the boiler furnace through burner simultaneously, the burning of water-coal-slurry can improve the temperature of boiler furnace rapidly, high temperature can make the water content in the industrial waste such as the dregs of a decoction reduce, thereby improve the efficiency of combustion of industrial waste, it is fully burnt; In addition, the bellows of siege bottom can blow afloat the part dregs of a decoction that fall rapidly again, rise to certain altitude, after arriving certain altitude, under the gravity effect, fall after rise, dregs of a decoction particle produces bidirectional-movement earlier at certain air velocity, promptly under certain blast condition, rise or float, fall because of the gravity effect again, therefore can in the combustion chamber, fully burn, burner blows out fails completing combustion in the combustion chambers burn zone, the burning dregs of a decoction that can't hold up by the blast that the bottom bellows produce will directly drop on the traveling-grate stoker completing combustion on fire grate again.
The invention has the beneficial effects as follows: by traveling-grate stoker and the bellows that are arranged on boiler bottom, and utilize the companion of water-coal-slurry to burn, the industrial wastes such as the dregs of a decoction that burned device is blown into can fully burn, and improve burn-off rate, have solved the problem of industrial waste environmental pollutions such as the dregs of a decoction; In addition,, made full use of the flue gas heat that above-mentioned industrial waste burning produces, improved the thermal efficiency of boiler, reduced the operation cost of boiler by inner water cooler and the air preheater that is provided with of boiler furnace.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a chain fire-gate partial enlarged drawing among Fig. 1.
The specific embodiment
As shown in the figure, this coal water slurry boiler comprises burner 1, boiler furnace 2 and constitutes the furnace wall 6 of combustion chamber, wherein burner 1 is arranged on the oblique upper of boiler, and burner 1 is connected with combustion chamber 2, and the water-coal-slurry and the dregs of a decoction are blown in the boiler furnace 2 by burner 1.The bottom of boiler is provided with traveling-grate stoker 3, traveling-grate stoker is made up of drive 10 and the chain that is wrapped on the drive 10, it is installed with bellows 8 in below of chain at the middle and upper levels, blast by bellows 8 generations, the part dregs of a decoction particle that falls can be blown afloat again, rise to certain altitude, after reaching a certain height, under the gravity effect, fall after rise again, therefore dregs of a decoction particle can produce bidirectional-movement down by certain again air velocity, therefore can fully burn in boiler furnace 2.Chain fire-gate forward lower part is provided with ash dropping hopper 4, the lime-ash that produces behind the dregs of a decoction and the cool water mixture burning drops on the traveling-grate stoker 3, rotation by drive 10, lime-ash on the fire grate 3 constantly drops down onto in the ash dropping hopper 4 in its place ahead, in addition in order in time to purge the lime-ash that hangs on the boiler setting, a plurality of soot blowers are set on furnace wall 6, and control lime-ash wall built-up forms coking.
Boiler intracavity is provided with water-cooling wall 5, and the high-temperature flue gas that dregs of a decoction burning produces in the continuous uphill process, to water-cooling wall 5, heats heat radiation in boiler to the cold water in the water-cooling wall 5.Multiple tracks furnace wall 6 is set in the boiler, and high-temperature flue gas circulates under the effect of furnace wall 6, has increased the time of contact of high-temperature flue gas and water-cooling wall, and the heat of high-temperature flue gas can fully be absorbed.The afterbody of boiler is provided with air preheater 7, constantly feed the air of cooling in the air preheater 7, high-temperature flue gas is process air preheater 7 under the effect of air-introduced machine, amount of residual heat will by high-temperature flue gas heats the air in the air preheater 7, air after the heating is introduced in the combustion chamber 2, has played combustion-supporting effect.
The course of work of this coal water slurry and decoction dreg burning boiler is as described below: at first, the water-coal-slurry and the dregs of a decoction are blown in the boiler furnace 2 by the boiler top by burner 1, and cool water mixture burning raises the temperature in the burner hearth rapidly, and high temperature makes the dregs of a decoction burn easily.Because dregs of a decoction particle is bigger, it enters 2 backs, combustion chamber and can fall rapidly under the gravity effect, under the effect of siege bottom bellows 8, the dregs of a decoction particle that part falls is blown afloat again by bellows 8, and rises to certain altitude, produces under the effect at gravity after arriving certain altitude and falls after rise, dregs of a decoction particle produces bidirectional-movement under certain air velocity, be that the dregs of a decoction rise under the air blast effect of bellows or float, under the gravity effect, fall after rise then, the dregs of a decoction can fully be burnt in combustion chamber 2.Some fail the clean-burning dregs of a decoction in combustion chamber 2, and can't will drop on the traveling-grate stoker 3 of boiler bottom by the dregs of a decoction that the bottom blast holds up, fully burning on traveling-grate stoker 3.The ashes that dregs of a decoction burning produces drop on the traveling-grate stoker 3, and ashes are fallen in the ash dropping hopper 4 by the not stall of fire grate is moving.In the combustion process, the high-temperature flue gas that dregs of a decoction burnings produces constantly rises, under the effect of furnace wall 6, in boiler, constantly move in circles, and with its heat radiation to water-cooling wall 5, and the water in the water-cooling wall 5 heated.When high-temperature flue gas flows to the boiler rear portion, high-temperature flue gas is process air preheater 7 under the effect of air-introduced machine, utilize the amount of residual heat will in the high-temperature flue gas that the gas that feeds in the air preheater 7 is heated, the gas after the heating is introduced in the boiler furnace 2, has played combustion-supporting effect.
The present invention burns by the companion of water-coal-slurry, and the dregs of a decoction can fully be burnt, and has improved the burn-off rate of the dregs of a decoction, and the heat that the burning back is produced is fully used, and has guaranteed the thermal efficiency of boiler.In addition, the present invention not only can be used to the dregs of a decoction that burn, industrial wastes such as the wood powder that also can fully burn, saw powder, stalk.
Claims (5)
1. coal water slurry and decoction dreg mixed burning boiler, comprise burner and boiler furnace, it is characterized in that: described boiler bottom is installed traveling-grate stoker, described fire grate by sprocket wheel and the chain that is wrapped in respectively on the sprocket wheel form, it is provided with bellows in below of chain at the middle and upper levels at interval, and described burner is arranged on the oblique upper of boiler.
2. coal water slurry and decoction dreg mixed burning boiler according to claim 1 is characterized in that: described boiler setting is provided with 2-5 soot blower.
3. coal water slurry and decoction dreg mixed burning boiler according to claim 1 is characterized in that: described chain fire-gate forward lower part is provided with ash dropping hopper.
4. coal water slurry and decoction dreg mixed burning boiler according to claim 1 is characterized in that: water-cooling wall vertically is set on the described boiler inner wall.
5. coal water slurry and decoction dreg mixed burning boiler according to claim 1 is characterized in that: described boiler internal is provided with furnace wall, and boiler tail is equipped with air preheater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100159746A CN101922716A (en) | 2009-06-09 | 2009-06-09 | Coal water slurry and decoction dreg mixed burning boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100159746A CN101922716A (en) | 2009-06-09 | 2009-06-09 | Coal water slurry and decoction dreg mixed burning boiler |
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| Publication Number | Publication Date |
|---|---|
| CN101922716A true CN101922716A (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100159746A Pending CN101922716A (en) | 2009-06-09 | 2009-06-09 | Coal water slurry and decoction dreg mixed burning boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847596A (en) * | 2021-10-29 | 2021-12-28 | 满洲里达赉湖热电有限公司 | Mixed fuel fluidized combustion method and device |
-
2009
- 2009-06-09 CN CN2009100159746A patent/CN101922716A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847596A (en) * | 2021-10-29 | 2021-12-28 | 满洲里达赉湖热电有限公司 | Mixed fuel fluidized combustion method and device |
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Application publication date: 20101222 |