CN2802284Y - Compound pulverized-fuel furnace - Google Patents
Compound pulverized-fuel furnace Download PDFInfo
- Publication number
- CN2802284Y CN2802284Y CN 200520072476 CN200520072476U CN2802284Y CN 2802284 Y CN2802284 Y CN 2802284Y CN 200520072476 CN200520072476 CN 200520072476 CN 200520072476 U CN200520072476 U CN 200520072476U CN 2802284 Y CN2802284 Y CN 2802284Y
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- CN
- China
- Prior art keywords
- furnace
- hot
- coal
- blast stove
- ignition furnace
- 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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Abstract
The utility model discloses a compound coal powder furnace which is composed of a drying device and a combustion device, wherein the combustion device is composed of a hot air furnace, an ignition furnace, and a coal grinding powder blower of which the outlet is communicated with a coal powder channel of the hot air furnace; the drying device is arranged on the top of the hot air furnace; the ignition furnace is positioned in the hot air furnace and under the coal powder channel; the ignition furnace is composed of an inner wall, a fire blocking wall and a furnace bed, wherein the furnace bed is positioned between the inner wall and the fire blocking wall; the fire blocking wall is integrally connected with the inner wall of the hot air furnace. The utility model has the advantages of space saving and small igniting energy consumption, and the ignition furnace is difficult to damage.
Description
Technical field
The utility model relates to a kind of equipment that utilizes coal dust to act as a fuel material is dried, particularly a kind of combined type coal-powder boiler.
Background technology
At present, the drying materials equipment that uses in cement production process is generally coal-powder boiler, and it is made up of drying unit and burner.Drying unit is arranged on the top of burner, and burner is made of hot-blast stove, ignition furnace and coal-grinding and powder-spraying machine, and ignition furnace is arranged between hot-blast stove and the coal-grinding and powder-spraying machine.The operation principle of coal-powder boiler is, at first by the ignition furnace heating, when being heated to uniform temperature, coal-grinding and powder-spraying machine burns coal dust spirt hot-blast stove, the normal back of burning ignition furnace extinguishes, and the heat of hot-blast stove internal combustion enters drying unit inside by its top material is dried.Because ignition furnace is arranged on separately between hot-blast stove and the coal-grinding and powder-spraying machine, so this equipment occupation space is big, igniting energy consumption height.Because the outer surface of ignition furnace is an iron sheet outer casing, therefore damage easily simultaneously.
The utility model content
The technical problems to be solved in the utility model provides a kind of combined type coal-powder boiler, and it not only saves the space, and the igniting energy consumption is low, ignition furnace is not fragile.
For solving the problems of the technologies described above, the utility model combined type coal-powder boiler, it is made up of drying unit and burner, burner is made of hot-blast stove, ignition furnace and coal-grinding and powder-spraying machine, the coal dust passage of the outlet of coal-grinding and powder-spraying machine and hot-blast stove is communications and liaison mutually, drying unit is arranged on the top of hot-blast stove, ignition furnace is positioned at hot-blast stove and below the coal dust passage, ignition furnace is made up of inwall, flame shield and siege, siege is between inwall and flame shield, and the inwall of flame shield and hot-blast stove is connected as a single entity.
Because the ignition furnace of above-mentioned combined type coal-powder boiler is positioned at hot-blast stove and below the coal dust passage, therefore save the space, when the igniting heating, all in hot-blast stove, the energy consumption of therefore lighting a fire is low for the heat of ignition furnace burning.Because ignition furnace is positioned at hot-blast stove and need not iron sheet outer casing, therefore the cost of manufacture of both having saved ignition furnace is not easy again to damage.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Accompanying drawing is a structural representation of the present utility model.
1. drying units among the figure, 2. material spreading cone, 3. material sliding cone, 4. hot-blast stove, 5. coal dust passage, 6. inwall, 7. siege, 8. flame shield, 9. hot-blast stove inwall, 10. coal-grinding and powder-spraying machine, 11. ignition furnaces, 12. feed pipes.
The specific embodiment
In the accompanying drawing, burner is made of hot-blast stove 4, ignition furnace 11 and coal-grinding and powder-spraying machine 10.The coal dust passage 5 of the outlet of coal-grinding and powder-spraying machine 10 and hot-blast stove 4 is communications and liaison mutually.Ignition furnace 11 is positioned at hot-blast stove 4 and below coal dust passage 5.Ignition furnace 11 is made up of inwall 6, flame shield 8 and siege 7, and siege 7 is between inwall 6 and flame shield 8, and flame shield 8 is connected as a single entity with hot-blast stove 9 inwalls.Drying unit 1 is arranged on the top of hot-blast stove 4, and drying unit 1 inside is provided with many group material spreading cones 2 and material sliding cone 3, and the top of drying unit 1 is provided with feed pipe 12.During work, at first by ignition furnace 11 igniting heating, when being heated to uniform temperature, coal-grinding and powder-spraying machine 10 will burn in the coal dust spirt hot-blast stove 4, the normal back of burning ignition furnace 11 extinguishes, and a large amount of heats that hot-blast stove 4 internal combustion produce are entered the inside of drying unit 1 by its top.Meanwhile material enters its inside by the feed pipe 12 at drying unit 1 top, by the hot blast that enters drying unit 1 in the hot-blast stove 4, to going up drying by the material on material sliding cone 3 and the material spreading cone 2 down.
Claims (1)
1. combined type coal-powder boiler, it is made up of drying unit and burner, burner is made of hot-blast stove, ignition furnace and coal-grinding and powder-spraying machine, the coal dust passage of the outlet of coal-grinding and powder-spraying machine and hot-blast stove is communications and liaison mutually, drying unit is arranged on the top of hot-blast stove, it is characterized in that: ignition furnace is positioned at hot-blast stove and below the coal dust passage, ignition furnace is made up of inwall, flame shield and siege, siege is between inwall and flame shield, and the inwall of flame shield and hot-blast stove is connected as a single entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072476 CN2802284Y (en) | 2005-06-09 | 2005-06-09 | Compound pulverized-fuel furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072476 CN2802284Y (en) | 2005-06-09 | 2005-06-09 | Compound pulverized-fuel furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802284Y true CN2802284Y (en) | 2006-08-02 |
Family
ID=36846993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520072476 Expired - Fee Related CN2802284Y (en) | 2005-06-09 | 2005-06-09 | Compound pulverized-fuel furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2802284Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967047A (en) * | 2012-12-19 | 2013-03-13 | 青岛海众环保锅炉股份有限公司 | Coal dust hot-blast furnace |
-
2005
- 2005-06-09 CN CN 200520072476 patent/CN2802284Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967047A (en) * | 2012-12-19 | 2013-03-13 | 青岛海众环保锅炉股份有限公司 | Coal dust hot-blast furnace |
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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 |