CN2295963Y - Horizontal coal hot air furnace - Google Patents
Horizontal coal hot air furnace Download PDFInfo
- Publication number
- CN2295963Y CN2295963Y CN 97216254 CN97216254U CN2295963Y CN 2295963 Y CN2295963 Y CN 2295963Y CN 97216254 CN97216254 CN 97216254 CN 97216254 U CN97216254 U CN 97216254U CN 2295963 Y CN2295963 Y CN 2295963Y
- Authority
- CN
- China
- Prior art keywords
- chamber
- heat exchanger
- exchanger tube
- heat exchanging
- type heat
- 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
Links
- 239000003245 coal Substances 0.000 title claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 239000003517 fume Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Landscapes
- Air Supply (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The utility model relates to a horizontal coal burning hot air furnace, characterized in that a preheating air channel for preheating cold air and reducing the temperature of a burning chamber is arranged in the wall of the burning chamber which can be used for carrying out the heating surface of the cold air. A heat exchanging pipe arranged in a heat exchanging chamber is a U type heat exchanging pipe, one port of the U type heat exchanging pipe and a preheating air channel arranged in the wall of the burning chamber are mutually connected, and the bottom end of the U type heat exchanging pipe is hanging. The utility model can avoid the defects that because of the splitting of a welding seam between the top end of the heat exchanging pipe and a pipe plate which is caused by a temperature stress and the mixture of fume and clean high-temperature hot air, dry material is caused to be polluted and the burning chamber is easily damaged.
Description
The utility model relates to generally the fluid heater of heat-generating device technical field, particularly a kind of horizontal coal-fired hot-blast stove that is used for dry industry.
In the grain heat-drying production process, needed drying medium is exactly clean high-temperature hot air, the equipment that produces hot-air is hot-blast stove, present employed hot-blast stove is the straight tubular heat exchanger structure, the two ends of heat exchanger tube respectively with heat-exchanging chamber in tube sheet be fixed together, therefore dust will be deposited in the interior low-temperature space of heat exchanger in the course of the work, cause obstruction of heat exchanger low-temperature space and high-temperature region by scaling loss, influence the heat exchange of heated air and cold air, in addition because the heating temperature of heat exchanger tube is different, its swell increment is sample not also, will produce very big thermal (temperature difference) stress, cause the weld seam between heat exchanger and the tube sheet to break away from, flue gas mixes with the high-temperature hot air of cleaning, cause dried material contaminated, also exist the combustion chamber because of high temperature easily by the shortcoming of scaling loss.
The purpose of this utility model provides and a kind ofly can guarantee continuous operation, the heat exchanger effectiveness height, and long service life, and can prevent that flue gas from entering the horizontal coal-fired hot-blast stove in the heat exchanger.
The utility model is to realize like this, it comprises fire grate, feeding-coal bucket, chamber wall, the combustion chamber, hot-air mouth, cold wind mouth, exhaust opening, blast cap, ash-falling chamber, shoot door, ash gate, fireguard and heat exchanger tube is characterized in that and can be provided with the preheated air passage that is used for the preheating cold air and reduces chamber temperature in the wall as the combustion chamber of carrying out preheating cold air heating surface that the heat exchanger tube that is arranged in the heat-exchanging chamber is a U type heat exchanger tube, the port preheated air passage interior with being arranged on chamber wall of U type heat exchanger tube is connected, and the bottom of U type heat exchanger tube is unsettled.
The utility model is owing to be provided with the heat exchanger of being made up of U type heat exchanger tube in heat-exchanging chamber, in chamber wall, be provided with the passage that is used to reduce chamber temperature and is used for the preheating cold air, so can prevent since between heat exchanger tube top that thermal (temperature difference) stress caused and the tube sheet taking off of weld seam split, flue gas mixes with the high-temperature hot air of cleaning, causes the contaminated and easy impaired shortcoming in combustion chamber of dried material.
Below in conjunction with accompanying drawing the utility model is further described,
Fig. 1 is the structural representation of horizontal coal-fired hot-blast stove,
The structural representation of the heat exchanger that Fig. 2 is made up of the U type heat exchanger,
Fig. 3 be the combustion chamber along A--A to cut-away view,
Fig. 4 be heat-exchanging chamber along B--B to cut-away view,
As Fig. 1--shown in 4, this horizontal coal-fired hot blast comprises fire grate 1, feeding-coal bucket 2, chamber wall 3, combustion chamber 5, hot-air mouth 7, cold wind mouth 4, exhaust opening 10, blast cap 8, ash-falling chamber 11, shoot door 12--13, ash gate 14, fireguard 6 and heat exchanger tube 9 are provided with the preheated air passage 15 that is used for the preheating cold air and reduces chamber temperature in can be as the chamber wall 3 that carries out preheating cold air heating surface, the heat exchanger tubes 9 that are arranged in the heat-exchanging chamber 16 are U type heat exchanger tube, port of U type heat exchanger tube is connected with preheated air passage 15 in being arranged on chamber wall 3, the bottom of U type heat exchanger tube is unsettled, during use, coal-fired enter combustion chamber 5 internal combustion through feeding-coal bucket 2, the flue gas that is produced in fireguard 6 enters heat-exchanging chamber 16 and with the cold air generation heat exchange that enters by cold wind mouth 4 and preheating cold air channel 15 in the U type heat exchanger tube 9, the flue dust that is produced in the heat-exchanging chamber 8 directly drops in the dust fall chamber 11, discharges by dust-cleaning door 12 then.
Claims (1)
1, a kind of horizontal coal-fired hot-blast stove, it comprises fire grate, feeding-coal bucket, chamber wall, combustion chamber, hot-air mouth, the cold wind mouth, exhaust opening, blast cap, ash-falling chamber, shoot door, ash gate, fireguard and heat exchanger tube, it is characterized in that and to be provided with the preheated air passage that is used for the preheating cold air and reduces chamber temperature in the wall as the combustion chamber of carrying out preheating cold air heating surface, the heat exchanger tube that is arranged in the heat-exchanging chamber is a U type heat exchanger tube, and the port preheated air passage interior with being arranged on chamber wall of U type heat exchanger tube is connected, and the bottom of U type heat exchanger tube is unsettled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97216254 CN2295963Y (en) | 1997-06-02 | 1997-06-02 | Horizontal coal hot air furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97216254 CN2295963Y (en) | 1997-06-02 | 1997-06-02 | Horizontal coal hot air furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2295963Y true CN2295963Y (en) | 1998-10-28 |
Family
ID=33933191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97216254 Expired - Fee Related CN2295963Y (en) | 1997-06-02 | 1997-06-02 | Horizontal coal hot air furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2295963Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095209A (en) * | 2010-12-17 | 2011-06-15 | 南通海鹰机电集团有限公司 | Hot-blast recuperative furnace of biomass generating system |
| CN111174428A (en) * | 2020-03-10 | 2020-05-19 | 广西格卡环保科技有限公司 | Reverse burning type steam hot blast stove |
| CN115615007A (en) * | 2022-10-09 | 2023-01-17 | 四川省登尧机械设备有限公司 | Biomass hot stove |
-
1997
- 1997-06-02 CN CN 97216254 patent/CN2295963Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095209A (en) * | 2010-12-17 | 2011-06-15 | 南通海鹰机电集团有限公司 | Hot-blast recuperative furnace of biomass generating system |
| CN102095209B (en) * | 2010-12-17 | 2012-09-05 | 南通海鹰机电集团有限公司 | Hot-blast recuperative furnace of biomass generating system |
| CN111174428A (en) * | 2020-03-10 | 2020-05-19 | 广西格卡环保科技有限公司 | Reverse burning type steam hot blast stove |
| CN115615007A (en) * | 2022-10-09 | 2023-01-17 | 四川省登尧机械设备有限公司 | Biomass hot stove |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4020822A (en) | Multi-fuel forced air furnace | |
| CN201032346Y (en) | Fuel stove | |
| CN2295963Y (en) | Horizontal coal hot air furnace | |
| CN2864531Y (en) | Vertical air heater | |
| CN2043736U (en) | Vertical hot-air furnace capable of returning smoke from two sides of the furnace | |
| CN87216988U (en) | Two-circuit indirectly-heating hot-blast stove using metal body and burnt coal | |
| CN2336851Y (en) | Dry and wet sedimentation type dust extraction device | |
| CN1844817A (en) | Coal-fired hot blast furnace with pre-combustion hearth and smoke circulating device | |
| CN2291629Y (en) | Split coal-fired hot-blast furnace | |
| CN2284928Y (en) | Pulse tube hot-air furnace | |
| CN216869244U (en) | A device for reducing the inlet temperature of a high-temperature heat exchanger matched with a combustion furnace | |
| CN2409417Y (en) | Coal burning hot air furnace | |
| CN2068663U (en) | Vertical hand reciprocatable coal-feeding hot blast boiler | |
| CN2505769Y (en) | Indirect heating hot-air furnace | |
| CN2195067Y (en) | Hot tube hot-air furnace | |
| CN2384184Y (en) | Horizontal double combustion charmber coal-fired hot-air stove | |
| CN201069257Y (en) | Air heater | |
| CN2646614Y (en) | Novel energy-saving environment protecting vertical non-pressure heating boiler | |
| RU10854U1 (en) | WATER HEATING BOILER | |
| CN2414301Y (en) | Hot blast furnace with board type smoke heat exchanger | |
| CN2318587Y (en) | Coal-fired hot-air furnace | |
| CN2381901Y (en) | Heat accumulating burner | |
| CN2303229Y (en) | Vertical man-power hot wind stove | |
| CN2282662Y (en) | 1 ton 0.7 Mpa vertical water-tube double-layer fire grate boiler | |
| CN2195066Y (en) | Adjustable negative-pressure high-efficiency energy-saving air heating furnace |
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 |