CN2158970Y - Internal dust-removing device for furnace - Google Patents
Internal dust-removing device for furnace Download PDFInfo
- Publication number
- CN2158970Y CN2158970Y CN 93213549 CN93213549U CN2158970Y CN 2158970 Y CN2158970 Y CN 2158970Y CN 93213549 CN93213549 CN 93213549 CN 93213549 U CN93213549 U CN 93213549U CN 2158970 Y CN2158970 Y CN 2158970Y
- Authority
- CN
- China
- Prior art keywords
- burner hearth
- top board
- hearth
- dust
- pyrotechnics
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Combustion Of Fluid Fuel (AREA)
Abstract
The utility model relates to an internal dust-removing device for a furnace, being arranged on a secondary combustion chamber in the furnace. The upper part of a hearth is provided with the top plate of an arched hearth. The inner of the top plate is provided with a plurality of secondary air nozzles which are arranged deflecting towards a center so as to produce rotating air current to cause dust and dregs to fall along four walls. The connecting point of the top plate of the hearth and the furnace wall is provided with a plurality of dust falling holes which are communicated with the hearth so that the dust and the dregs which are separated fall into the hearth to be burnt again. The upper part of the secondary combustion chamber is provided with a fire retardant plate to cause air whirl to reinforce. The device can effectively separate the dust and the dregs which are again burnt, can reduce environmental pollution, and can enhance energy utilizing rate.
Description
The utility model relates to a kind of secondary wind of using and forms pyrotechnics cyclone, the device that carries out smoke abatement and dust control in body of heater.
Present employed boiler itself does not all have dust arrester, and dust arrester all places outside the body of heater.Increased the equipment input, and coal-fired utilization rate is low, contaminated environment, waste energy.
The purpose of this utility model provides a kind of device that gets final product dedusting in stove, and minimizing equipment drops into, and improves coal utilizaton rate, reduces the dedusting in stove device of environmental pollution.
The technical solution of the utility model is: this dedusting in stove device has fire grate (5) and blast orifice (4), air blast valve (3) and secondary air-valve (2) and the secondary wind preheating cavity (9) of body of heater (1), the burner hearth (6) in body of heater (1), burner hearth (6) bottom, is characterized in being equipped with on the top of burner hearth a dust arrester (8).
This described dust arrester is characterized in burner hearth (6) top one arched hearth top board (13) being housed, the overfire air jet (11) that several partial centers are arranged is housed in burner hearth top board (13), have the dust fall hole (10) that several communicate with burner hearth (6) in burner hearth top board (13) and junction, furnace wall, locate also to be equipped with a fire-proof plate (12) for alternate one section on burner hearth top board (13) top, overfire air jet (11) communicates with secondary air adjustor valve (2) through secondary wind preheating cavity (9).
This described dust arrester is characterized in: in burner hearth (6) top one arched hearth top board (14) is housed, several pyrotechnics spouts (15) are housed on burner hearth top board (14), and this pyrotechnics spout (15) is all by being that the center of circle is drawn round tangential direction and arranged with the body of heater axis; Overfire air port (16) is loaded on the terminal of pyrotechnics spout (15) and it sprays to identical with the pyrotechnics emission direction; Burner hearth top board (14) has the dust fall hole (17) that several communicate with burner hearth (6) with the junction of furnace wall, locates also to be equipped with fire-proof plate (18) for alternate one section on burner hearth top board (14) top.
The utility model has the advantages that: owing in the boiler dust arrester is housed, so need not add deduster.Burn once more because of it drops into burner hearth with the dirt slag that reclaims again,, reduced environmental pollution, more effectively utilized the energy simultaneously so more effectively reduced the discharging of dirt slag.
Fig. 1 is the utility model structure chart.
Fig. 2 is the utility model overfire air jet structure chart.
Fig. 3 is another example structure figure.
Fig. 4 is the B-B cutaway view of Fig. 1.
Fig. 5 is the D-D cutaway view of Fig. 4.
Fig. 1 is a Figure of abstract.
As shown in Figure 1, when the pyrotechnics of burner hearth (6) through burner hearth top board (13) when entering secondary combustion chamber, because the secondary wind of overfire air jet (11) ejection produces the swirling eddy (see figure 2), so pyrotechnics carries out cyclone dust removal when this carries out second-time burning, the dirt slag falls and enters burner hearth (6) through dust fall hole (10) along wall and burns once more, so moves in circles until after-flame.Because the pressure of secondary combustion chamber so pyrotechnics can not directly enter secondary combustion chamber from dust fall hole (11), and can only enter secondary combustion chamber greater than the pressure of burner hearth (6) from the interstitial hole of arched hearth top board (13).The fire-proof plate (12) of one circular hollow is arranged at the top of secondary combustion chamber, so that pyrotechnics produces strong cyclone in secondary combustion chamber.
Embodiment two, as shown in Figure 3, in burner hearth (6) top one arched hearth top board (14) is housed, several are housed on burner hearth top board (14) fall L shaped pyrotechnics spout (15), this pyrotechnics spout (15) is all by being that the center of circle is drawn round tangential direction and arranged with the body of heater axis, and overfire air port (16) is loaded on the terminal of pyrotechnics spout (15) and it sprays to identical with the pyrotechnics emission direction (seeing Fig. 4, Fig. 5); Burner hearth top board (14) has the dust fall hole (17) that several communicate with burner hearth (6) with the junction of furnace wall; Locate also to be equipped with fire-proof plate (18) for alternate one section on burner hearth top board (14) top.Its operation principle and process are identical with embodiment one.
Claims (3)
1, a kind of dedusting in stove device, fire grate (5) and blast orifice (4), air blast valve (3) and secondary air-valve (2) and secondary wind preheating cavity (9) that body of heater (1), the burner hearth (6) in body of heater (1), burner hearth (6) bottom are arranged is characterized in that being equipped with on the top of burner hearth dust arrester (8).
2, a kind of dedusting in stove device as claimed in claim 1, it is characterized in that described dust arrester (8) is: one arched hearth top board (13) is housed in burner hearth (6) top, the overfire air jet (11) that several partial centers are arranged is housed in burner hearth top board (13), has the dust fall hole (10) that several communicate with burner hearth (6) in burner hearth top board (13) and junction, furnace wall; Locate also to be equipped with a fire-proof plate (12) for alternate one section on burner hearth top board (13) top; Overfire air jet (11) communicates with secondary air adjustor valve (2) through secondary wind preheating cavity (9).
3, a kind of dedusting in stove device as claimed in claim 1, it is characterized in that described dust arrester (8) is: one arched hearth top board (14) is housed in burner hearth (6) top, several pyrotechnics spouts (15) are housed on burner hearth top board (14), and this pyrotechnics spout (15) is all by being that the center of circle is drawn round tangential direction and arranged with the body of heater axis; Overfire air port (16) is loaded on the terminal of pyrotechnics spout (15) and it sprays to identical with the pyrotechnics emission direction; Burner hearth top board (14) has the dust fall hole (17) that several communicate with burner hearth (6) with the junction of furnace wall, locates also to be equipped with fire-proof plate (18) for alternate one section on burner hearth top board (14) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93213549 CN2158970Y (en) | 1993-05-21 | 1993-05-21 | Internal dust-removing device for furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93213549 CN2158970Y (en) | 1993-05-21 | 1993-05-21 | Internal dust-removing device for furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2158970Y true CN2158970Y (en) | 1994-03-16 |
Family
ID=33794582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93213549 Expired - Fee Related CN2158970Y (en) | 1993-05-21 | 1993-05-21 | Internal dust-removing device for furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2158970Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930517A (en) * | 2015-06-30 | 2015-09-23 | 中国科学院广州能源研究所 | Rubbish pyrolysis swirling combustion device |
-
1993
- 1993-05-21 CN CN 93213549 patent/CN2158970Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930517A (en) * | 2015-06-30 | 2015-09-23 | 中国科学院广州能源研究所 | Rubbish pyrolysis swirling combustion device |
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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 |