CN2343488Y - Burning duster for vertical coal fired boiler - Google Patents
Burning duster for vertical coal fired boiler Download PDFInfo
- Publication number
- CN2343488Y CN2343488Y CN 98209561 CN98209561U CN2343488Y CN 2343488 Y CN2343488 Y CN 2343488Y CN 98209561 CN98209561 CN 98209561 CN 98209561 U CN98209561 U CN 98209561U CN 2343488 Y CN2343488 Y CN 2343488Y
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- CN
- China
- Prior art keywords
- boiler
- secondary air
- vertical
- coal
- utility
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Abstract
The utility model relates to a burning duster device for a vertical coal fired boiler, belonging to the field of the coal fired boiler. The utility model is designed to solve the defects of low thermal efficiency and poor effect of smoke and dust elimination of the existing vertical boilers. A secondary air pipe is arranged around a flue hole which is above the boiler cavity of the vertical boiler and used for conveying oxygen into the boiler. A dust-cleaning channel is arranged under the secondary air pipe. The oxygen entering the boiler cavity through the secondary air pipe extends the flow path of the flame, intensifies the combustion of fuels, and has the function of smoke prevention and dust control. The utility model is applied to various steam vertical coal-fired boilers, hot water vertical coal-fired boilers and unpressurized vertical coal-fired boilers.
Description
The utility model belongs to the boiler combustion dust arrester that is used for the vertical fire coal boiler in the field of boilers.
The flame of vertical fire coal boiler and the operation of flue gas are by the combustion chamber, discharge out of the furnace through smoke-box and chimney, because running route is short and straight, will have a large amount of dusts and unburnt solid particle to enter atmosphere, and environment is polluted.The annular smoke-box that adopts in vertical coal stove has at present played certain effect to the thermal efficiency that improves boiler, but to coal ash make full use of with dust removing effects also be not very desirable.
The utility model is the vertical fire coal boiler combustion dust arrester that the burning of the vertical fire coal the strengthened boiler that designs at the deficiencies in the prior art has the dedusting effect.
The utility model is realized by following measure.This device is made up of burner hearth, fire grate, airduct, dust arrester, smoke-box and flue, it is characterized in that the edge above burner hearth near the floss hole of annular smoke-box, is provided with toward the secondary air channel of the interior delivering oxygen of stove.Be processed with some exhaust vents on the secondary air channel, this exhaust vent be positioned at secondary air channel center line place horizontal plane below, be the angle of 5-30 degree with this horizontal plane; The below of airduct is the dedusting passage that is made of furnace wall, is provided with ash door below the passage.When the coal combustion in the burner hearth, flame and flue gas be operation upwards, and under the secondary wind action, the flow process of flame is serpentine, thereby has increased the flow process and the degree of filling of flame in burner hearth of flame; The oxygen that adds from secondary air channel after the preheating, penetrates the zone of flame with enough speed airduct, make unburnt fuel gas and the further after-flame of solid particle in the flame, forms the thermal-flame film simultaneously, has strengthened the burning of fuel bed on the fire grate; Because flue gas is the serpentine motion in burner hearth, so the dust in the flue gas is subjected to action of centrifugal force when entering flue, being separated falls into the dedusting passage.
The utility model has the advantages that, increased the flow process of flame, strengthened the burning of fuel, the effect of smoke abatement and dust control is arranged again.It is the regeneration product of vertical fire coal boiler.Can be applicable in various steams, hot water and the pressure-less boiler.
Accompanying drawing is a structural representation of the present utility model, and (1) is annular smoke-box among the figure; (2) be flue; (3) be body of heater; (4) be secondary air channel; (5) be furnace wall; (6) be the dedusting passage; (7) be ash door; (8) be fire grate; (9) be burner hearth; (10) be air compartment.
Below in conjunction with a description of drawings embodiment of the present utility model.Dust arrester is at the edge of burner hearth (9) top, near the floss hole of annular smoke-box (1), is provided with toward the secondary air channel (4) of the interior delivering oxygen of stove.Secondary air channel is processed with exhaust vent on (4), this exhaust vent be positioned at secondary air channel center line place horizontal plane below, with this horizontal plane be 20 the degree angles; The below of airduct (4) is the dedusting passage (6) that is made of furnace wall (5), is provided with ash door (7) below the passage.When the coal combustion in the burner hearth (9), flame and flue gas be operation upwards, and under the secondary wind action, the flow process of flame is serpentine, thereby has increased the flow process and the degree of filling of flame in burner hearth of flame; The oxygen that adds from secondary air channel (4) after the preheating, penetrates the zone of flame with enough speed airduct, make unburnt fuel gas and the further after-flame of solid particle in the flame, forms the thermal-flame film simultaneously, has strengthened the burning of fuel bed on the fire grate; Because flue gas is the serpentine motion in burner hearth, so the dust in the flue gas is subjected to action of centrifugal force when entering flue (2), being separated falls into dedusting passage (6).
Claims (1)
1, a kind of vertical fire coal boiler combustion dust arrester, form by burner hearth, airduct, dust arrester, smoke-box and flue, it is characterized in that: the edge in burner hearth (9) top near the floss hole of annular smoke-box (1), is provided with toward the secondary air channel (4) of the interior delivering oxygen of stove; Be processed with exhaust vent on the secondary air channel, this exhaust vent be positioned at secondary air channel center line place horizontal plane below, with this horizontal plane be 20 the degree angles; The below of airduct (4) is the dedusting passage (6) that is made of furnace wall (5), is provided with ash door (7) below the passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98209561 CN2343488Y (en) | 1998-04-15 | 1998-04-15 | Burning duster for vertical coal fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98209561 CN2343488Y (en) | 1998-04-15 | 1998-04-15 | Burning duster for vertical coal fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2343488Y true CN2343488Y (en) | 1999-10-13 |
Family
ID=33964917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98209561 Expired - Fee Related CN2343488Y (en) | 1998-04-15 | 1998-04-15 | Burning duster for vertical coal fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2343488Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436944C (en) * | 2006-08-03 | 2008-11-26 | 王开生 | Smoke prevention and dust control high efficiency energy saving coal burner |
-
1998
- 1998-04-15 CN CN 98209561 patent/CN2343488Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436944C (en) * | 2006-08-03 | 2008-11-26 | 王开生 | Smoke prevention and dust control high efficiency energy saving coal burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |