CN2193979Y - Coal-fired hot-air furnace - Google Patents
Coal-fired hot-air furnace Download PDFInfo
- Publication number
- CN2193979Y CN2193979Y CN 94213504 CN94213504U CN2193979Y CN 2193979 Y CN2193979 Y CN 2193979Y CN 94213504 CN94213504 CN 94213504 CN 94213504 U CN94213504 U CN 94213504U CN 2193979 Y CN2193979 Y CN 2193979Y
- Authority
- CN
- China
- Prior art keywords
- coal
- heat exchanger
- fired hot
- blast stove
- combustion
- 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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- Drying Of Solid Materials (AREA)
Abstract
The utility model relates to a combustion device, comprising a combustion furnace and a heat exchanger. The inner of the combustion furnace is provided with a mechanical driving chain grate, and the heat exchanger is composed of even segments of vertical mounted tubular type or heat exchange plate type indirect heat exchange segments. An expansion joint is arranged between each heat exchange segment, and the heat exchanger is positioned above the combustion furnace. The last segment is communicated with a furnace chamber. The air is heated by the indirect heat exchange mode and is used for drying material, which can not generate the pollution of the material and can improve the quality. The utility model has the advantages of high thermal efficiency and long service life.
Description
The utility model relates to a kind of and use solid-fuelled combustion apparatus, particularly a kind ofly only use solid-fuelled combustion apparatus what medium carried out indirect.
When various materials such as grain, seed, vegetables, timber, medicine are carried out drying, all to use hot blast.With the coal be the hot-blast stove of fuel use at present more be anthracite directly burning with flue gas material is heated.It is very low that China does not have coal-fired output, and bituminous coal is a kind of main fuel.Existing hot-blast stove as being fuel with the fire coal, will be affected grain quality and taste after the baking.The material that particularly contains a kind of 3-4 BaP in the flue gas, influence that will be different to healthy generation.Existing is that the hot-blast stove of fuel is manually-operated with the coal, and labour intensity is big, and production efficiency is low.
It is fuel with bituminous coal that the purpose of this utility model is to provide a kind of, thermal efficiency height, and long service life also can reduce the hot-blast stove of labour intensity.
The purpose of this utility model is achieved in that it comprises combustion furnace, top at combustion furnace is provided with heat exchanger, be provided with machine driving chain furnace row in the combustion furnace, heat exchanger is a positive integer by 2n(n) section vertical installation shell and tube or the board-like indirect heat exchange section of heat exchange form, be provided with expansion joint between each heat exchanging segment, its final stage is connected with burner hearth.
Advantage of the present utility model is:
1, adopts the indirect type heat exchanger,, be used to dry material, material is polluted pure air heat.Be particularly suitable for the oven dry of materials such as grain, medicine.
2, adopting the indirect type heat exchanger, can be fuel with bituminous coal, reduces the use cost of equipment.
3, the heat exchanger segmentation is provided with, good effect of heat exchange, and thermal efficiency height, equipment volume is little, and the final temperature of air can reach more than 200 ℃.
4, be provided with expansion joint between every section, can prevent the damage of heat exchanger, long service life.
5, adopt machine driving chain furnace row, realize the mechanization operation, reduce labour intensity, raise the efficiency, be particularly suitable for and the supporting use of large-scale drying plant.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1.
For example the utility model is done detailed description below in conjunction with accompanying drawing:
The bottom of combustion furnace is machine driving chain furnace row 8.Machine driving chain furnace row 8 entrance point is provided with coal mechanism 4, and the port of export is provided with tapping mechanism 18.Be arranged with wind isolation board 7 at fire grate 8.Bituminous coal is added on the machine driving chain furnace row 8 automatically by coal mechanism 4, and the machine driving chain furnace is arranged 8 transmissions, and burner hearth and combustion air mixed combustion are gone in the ribbing, and cinder drops in the slag bucket 17, is discharged by tapping mechanism 18.Wind isolation board 7 plays the effect that combustion air is evenly distributed.Combustion-supporting arch is set in the burner hearth, and combustion-supporting arch comprises arch 14, arch 25 down.In the arch 25 hole that is connected with heat exchanger is arranged, fire-resistant grid 13 is arranged on the hole.Flue gas enters heat exchanger from fire-resistant grid 13.Heat exchanger is arranged at the top of combustion furnace, helps reducing floor space.Heat exchanger is a tubular heat exchanger, and it is composed in series by four heat exchanging segments 10.Be provided with corrugated-type expansion joint 12 between each heat exchanging segment.Outlet flue end at every section heat exchanging segment is provided with wind deflector 11.The tubulation of every section heat exchanger adopts vertical installation.Last heat exchanging segment is connected with burner hearth.Flue gas at first enters the tube side of last heat exchanging segment, and wind deflector 11 water conservancy diversion that the heat exchanging segment exit is provided with are provided with the dividing plate that makes it to form serial connection between every section, make it the import that flue gas enters next section.Air enters shell side, carries out heat exchange with flue gas.With air heat.
Claims (8)
1, a kind of coal-fired hot-blast stove, it comprises combustion furnace, it is characterized in that: the top at combustion furnace is provided with heat exchanger, be provided with machine driving chain furnace row in the combustion furnace, heat exchanger is made up of the shell and tube or the board-like indirect heat exchange section of heat exchange of the vertical installation of 2n section, be provided with expansion joint between each heat exchanging segment, its final stage is connected with burner hearth.
2, coal-fired hot-blast stove according to claim 1 is characterized in that: establish combustion-supporting arch in the burner hearth, combustion-supporting arch is made up of arch and following arch, and a hole that is connected with heat exchanger is arranged in the arch, and fire-resistant grid is arranged on the hole.
3, coal-fired hot-blast stove according to claim 1 and 2 is characterized in that: heat exchanger is made up of the tubular heat exchanger of 4 sections vertical installations, and shell side is an air, and tube side is a flue gas, is connected in series between every section heat exchanger.
4, coal-fired hot-blast stove according to claim 1 and 2 is characterized in that: the smoke outlet at every section heat exchanger is provided with wind deflector.
5, coal-fired hot-blast stove according to claim 3 is characterized in that: the smoke outlet at every section heat exchanger is provided with wind deflector.
6, according to claim 1 or 2 or 5 described coal-fired hot-blast stoves, it is characterized in that: the entrance point machine driving chain furnace row is provided with coal mechanism, and the port of export is provided with tapping mechanism.
7, coal-fired hot-blast stove according to claim 3 is characterized in that: the entrance point machine driving chain furnace row is provided with coal mechanism, and the port of export is provided with tapping mechanism.
8, coal-fired hot-blast stove according to claim 4 is characterized in that: the entrance point machine driving chain furnace row is provided with coal mechanism, and the port of export is provided with tapping mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94213504 CN2193979Y (en) | 1994-05-27 | 1994-05-27 | Coal-fired hot-air furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94213504 CN2193979Y (en) | 1994-05-27 | 1994-05-27 | Coal-fired hot-air furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2193979Y true CN2193979Y (en) | 1995-04-05 |
Family
ID=33830053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94213504 Expired - Fee Related CN2193979Y (en) | 1994-05-27 | 1994-05-27 | Coal-fired hot-air furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2193979Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589274A (en) * | 2012-03-12 | 2012-07-18 | 铁岭市清河区金锋干燥设备有限公司 | Air heating furnace specially used for drying cotton |
| CN108386862A (en) * | 2018-01-13 | 2018-08-10 | 安徽金禾实业股份有限公司 | A kind of heat supply method and device of melamine fluid bed |
-
1994
- 1994-05-27 CN CN 94213504 patent/CN2193979Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589274A (en) * | 2012-03-12 | 2012-07-18 | 铁岭市清河区金锋干燥设备有限公司 | Air heating furnace specially used for drying cotton |
| CN108386862A (en) * | 2018-01-13 | 2018-08-10 | 安徽金禾实业股份有限公司 | A kind of heat supply method and device of melamine fluid bed |
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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 |