CN2713376Y - A hot blast furnace - Google Patents
A hot blast furnace Download PDFInfo
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- CN2713376Y CN2713376Y CN 200420072263 CN200420072263U CN2713376Y CN 2713376 Y CN2713376 Y CN 2713376Y CN 200420072263 CN200420072263 CN 200420072263 CN 200420072263 U CN200420072263 U CN 200420072263U CN 2713376 Y CN2713376 Y CN 2713376Y
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- heat exchanger
- air
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- pipe
- circulating fan
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Abstract
The utility model relates to a hot blast furnace, which comprises a stove body and a smoke gas discharging tube of the hot blast stove body. The utility model is characterized in that the smoke gas discharging tube is a bent tube, and a heat exchanger for preheating and supplying the air is added at the exit of the smoke gas discharging bent tube. The beneficial effect of the utility model are that the smoke gas flow path is altered, the heat exchanger is added, the heat efficiency is enhanced by using the discharged residual heat of the smoke gas for preheating and supplying the air; the environmental protection processing to the flue gas is carried out by an ash separator, and the pollution to the environment is reduced.
Description
Affiliated technical field
The utility model relates to a kind of timber dryer, relates in particular to a kind of hot-blast stove.
Background technology
Existing hot-blast stove generally adopts the inner/outer tube structure, and inner core inside is the combustion chamber, and inner core and urceolus are formed hot-flow flue, flue gas and air heat exchange are undertaken by inwall, be that the hot-blast stove inwall is an effective heat exchange area, flue gas flow is single flow (directly emptying vertically upward).The hot-blast stove of this structure is simple in structure, and flue gas flow is short, but heat exchange area is limited, and the thermal efficiency is low, exhaust gas temperature height (reaching 500 ℃), and environmental pollution is bigger.
Summary of the invention
In order to overcome existing hot-blast stove deficiency, purpose provides a kind of hot-blast stove, and this hot-blast stove thermal efficiency height pollutes few.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of hot-blast stove comprises hot-blast furnace body and smoke exhaust pipe, and its design feature is: described smoke exhaust pipe is a bend pipe, increases the heat exchanger of preheating auxiliary air at smoke evacuation winding pipe exit place.As the technical program being replenished and optimizing, the inwall of smoke evacuation bend pipe covers fire clay on the way, and heat exchanger then can be pipe heat exchanger and barrel type heat exchanger.
Described pipe heat exchanger is the heat exchanger that is provided with circulating fan, this heat exchanger is provided with two groups of heat exchanger tubes, the air inlet of one group of heat exchanger tube communicates with fresh air and air outlet is connected with the blast pipe of circulating fan, the air inlet of another group heat exchanger tube is connected with the circulating fan air outlet, and the air outlet of this pipe is connected with the body of heater air inlet, the blast pipe of circulating fan also is connected with the residual air fairlead of hothouse, and the auxiliary air that circulating fan is introduced is the mist of fresh air and residual air; Heat exchanger tube separates flue gas and auxiliary air, logical auxiliary air in the pipe, and the pipe outer wall contacts with flue gas.Pipe heat exchanger also is provided with inspection door on bobbin carriage.
Described barrel type heat exchanger is the heat exchanger that is provided with circulating fan, barrel type heat exchanger is the inner/outer tube structure, and the inner logical flue gas of inner core forms hot-air channel between inner core and the urceolus, the air inlet of hot-air channel is connected with the air outlet of circulating fan, and the air outlet of hot-air channel is connected with the body of heater air inlet.Described barrel type heat exchanger also is provided with the economizer bank of lateral direction penetrating its underpart, the air inlet of economizer bank communicates with fresh air and exports with the blast pipe of circulating fan and is connected, the blast pipe of circulating fan also is connected with the residual air fairlead of hothouse, and the auxiliary air that circulating fan is introduced is the mist of fresh air and residual air.As the further optimization to the technical program, hot-air channel is surface soldered wind loop and fin outer tube, increases heat exchange area.
For further technique scheme being optimized, also be provided with deduster in the smoke outlet of heat exchanger.This deduster is the water tank type deduster, and the air inlet of water tank type deduster communicates with the exhanst gas outlet of heat exchanger, and the outlet of water tank type deduster links to each other with air-introduced machine.
The beneficial effects of the utility model are that the change flue gas flow prolongs heat-exchange time, increases heat exchanger, utilizes the fume afterheat preheating auxiliary air of discharging, and has improved the thermal efficiency, but also be provided with deduster flue gas is handled, and reduces the pollution to environment.
Description of drawings
Fig. 1 is the cutaway view of the utility model embodiment 1.
Fig. 2 is the vertical view of the utility model embodiment 1.
Fig. 3 is the cutaway view of the utility model embodiment 2.
Fig. 4 is the vertical view of the utility model embodiment 2.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Consult Fig. 1 and Fig. 2, that shown is embodiment 1, and a kind of hot-blast stove comprises hot-blast furnace body 1 and smoke exhaust pipe 2, its design feature is: described smoke exhaust pipe 2 is bend pipe, increases the preheating auxiliary air in smoke evacuation bend pipe 2 exits and is provided with the pipe heat exchanger 3 of circulating fan 4.Smoke exhaust pipe 2 changes bend pipe into by straight tube, and flue gas rotary is flowed, and the heat-exchange time of prolong smoke burns out for the bend pipe 2 that prevents to discharge fume is washed away by high-temperature flue gas simultaneously, and Bi Tu covers fire clay 21 in smoke evacuation bend pipe 2.
The heat exchanger tube of heat exchanger 3 divides two groups, is set of heat exchange tubes 31 and set of heat exchange tubes 32.The air inlet 310 of set of heat exchange tubes 31 is connected with circulating fan 4 air outlets 41, the air outlet 311 of set of heat exchange tubes 31 is connected with body of heater 1 air inlet 11, the air inlet 320 of set of heat exchange tubes 32 communicates with fresh air, and air outlet 321 is connected by pipe 3210 with the blast pipe 42 of circulating fan 4, and the blast pipe 42 of circulating fan 4 also is connected (among the figure not picture place) with the residual air fairlead of hothouse.
Consult Fig. 3 and Fig. 4, that shown is embodiment 2, has changed heat exchanger structure with respect to 1 of embodiment, changes the hot device 3 of tubular type into barrel type heat exchanger 7, and other structure and flow process are constant.
Described barrel type heat exchanger 7 is for being provided with the heat exchanger of circulating fan 4, barrel type heat exchanger 7 is for adopting the inner/outer tube structure, inner core 71 inner logical flue gases, inner core 71 forms hot-air channel 73 with urceolus 72, the air inlet 732 of hot-air channel 73 is connected with the air outlet 41 of circulating fan, the air outlet 733 of hot-air channel 73 is connected with body of heater air inlet 11, and surface soldered wind loop 730 and fin 731 outer tube, form ventilation section and strengthen heat transfer intensity, guarantee enough heat exchange areas, effectively utilize heat energy, reduce exhaust gas temperature.Barrel type heat exchanger 7 also is provided with the economizer bank 74 of lateral direction penetrating its underpart, the air inlet of economizer bank 74 communicates with fresh air and exports by pipe 741 and is connected with the blast pipe 42 of circulating fan 4, and the blast pipe 42 of circulating fan 4 also is connected with the residual air fairlead of hothouse (among the figure not picture place).
Economizer bank 74 both can the preheating supply fresh air, again flue gas is had certain delay effect, prolong smoke promotes heat exchange to carry out in the time of staying of burner hearth and heat exchanger inner bag, improves the thermal efficiency.Barrel type heat exchanger 7 adopts the logical cigarette of cylinder, logical cigarette resistance is little, dust stratification is littler than pipe heat exchanger 3, but volume ratio is bigger, also bigger to powerful hot-blast stove steel consumption, the thermal efficiency will hang down with respect to pipe heat exchanger, but for the thermal efficiency that improves original hot-blast stove, reduce exhaust gas temperature, it is helpful to reduce dust stratification.
Above-described specific embodiment only is the utility model preferred embodiment, and the equivalent arrangements of being done according to the utility model claim all should be technology of the present utility model and contains such as.
Claims (8)
1. a hot-blast stove comprises hot-blast furnace body and smoke exhaust pipe, it is characterized in that: described smoke exhaust pipe is a bend pipe, increases the heat exchanger of preheating auxiliary air at smoke evacuation winding pipe exit place.
2. a kind of hot-blast stove according to claim 1 is characterized in that: the inwall coating refractory mud of described smoke evacuation bend pipe.
3. a kind of hot-blast stove according to claim 2, it is characterized in that: described heat exchanger is the pipe heat exchanger that is provided with circulating fan, this heat exchanger is provided with two groups of heat exchanger tubes, the air inlet of one group of heat exchanger tube communicates with fresh air and air outlet is connected with the blast pipe of circulating fan, the air inlet of another group heat exchanger tube is connected with the circulating fan air outlet, and the air outlet of this pipe is connected with the body of heater air inlet, and the blast pipe of circulating fan also is connected with the residual air fairlead of hothouse; Heat exchanger tube separates flue gas and auxiliary air, logical auxiliary air in the pipe, and the pipe outer wall contacts with flue gas.
4. a kind of hot-blast stove according to claim 3 is characterized in that: described pipe heat exchanger is provided with inspection door on bobbin carriage.
5. a kind of hot-blast stove according to claim 2, it is characterized in that: described heat exchanger is the barrel type heat exchanger that is provided with circulating fan, barrel type heat exchanger is the inner/outer tube structure, the inner logical flue gas of inner core, form hot-air channel between inner core and the urceolus, the air inlet of hot-air channel is connected with the air outlet of circulating fan, and the air outlet of hot-air channel is connected with the body of heater air inlet.Described barrel type heat exchanger also is provided with the economizer bank of lateral direction penetrating its underpart, and the air inlet of economizer bank communicates with fresh air and exports with the blast pipe of circulating fan and is connected, and the blast pipe of circulating fan also is connected with the residual air fairlead of hothouse.
6. a kind of hot-blast stove according to claim 5 is characterized in that: described hot-air channel is surface soldered wind loop and fin outer tube.
7. according to claim 3 or 6 described a kind of hot-blast stoves, it is characterized in that: the smoke outlet in heat exchanger also is provided with deduster.
8. a kind of hot-blast stove according to claim 7 is characterized in that: described deduster is the water tank type deduster, and the air inlet of water tank type deduster communicates with the exhanst gas outlet of heat exchanger, and the outlet of water tank type deduster links to each other with air-introduced machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072263 CN2713376Y (en) | 2004-08-04 | 2004-08-04 | A hot blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072263 CN2713376Y (en) | 2004-08-04 | 2004-08-04 | A hot blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713376Y true CN2713376Y (en) | 2005-07-27 |
Family
ID=34874089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420072263 Expired - Fee Related CN2713376Y (en) | 2004-08-04 | 2004-08-04 | A hot blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2713376Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322677A (en) * | 2013-07-16 | 2013-09-25 | 鸡西市星光热风炉制造有限公司 | Energy-saving environment-friendly coal-fueled hot air furnace |
| CN103383144A (en) * | 2013-08-06 | 2013-11-06 | 叙永县马岭粮油食品有限公司 | Hot blast stove |
| CN103405940A (en) * | 2013-08-28 | 2013-11-27 | 天华化工机械及自动化研究设计院有限公司 | Energy-saving type spray-drying method |
| CN104807319A (en) * | 2015-05-14 | 2015-07-29 | 李菊泉 | Material-water separating device |
| CN105202534A (en) * | 2015-09-22 | 2015-12-30 | 梁万泉 | Fresh air pre-heating fuel dust recovery type gasification furnace |
| CN105865023A (en) * | 2016-04-28 | 2016-08-17 | 安徽谷丰机械科技有限公司 | Environmentally friendly energy-saving type hot-blast stove |
| CN106225521A (en) * | 2016-08-31 | 2016-12-14 | 浙江华顺炉业有限公司 | A kind of heat-treatment furnace cartridge type air preheater |
| CN106333221A (en) * | 2016-08-15 | 2017-01-18 | 黄碧义 | Rotary wheel type drying system |
| CN107202423A (en) * | 2017-07-11 | 2017-09-26 | 叶培科 | A kind of heat-exchange system based on hot-blast stove |
-
2004
- 2004-08-04 CN CN 200420072263 patent/CN2713376Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322677A (en) * | 2013-07-16 | 2013-09-25 | 鸡西市星光热风炉制造有限公司 | Energy-saving environment-friendly coal-fueled hot air furnace |
| CN103322677B (en) * | 2013-07-16 | 2016-04-20 | 鸡西市星光热风炉制造有限公司 | Energy saving and environment friendly coal-fired hot-blast stove |
| CN103383144A (en) * | 2013-08-06 | 2013-11-06 | 叙永县马岭粮油食品有限公司 | Hot blast stove |
| CN103405940A (en) * | 2013-08-28 | 2013-11-27 | 天华化工机械及自动化研究设计院有限公司 | Energy-saving type spray-drying method |
| CN104807319A (en) * | 2015-05-14 | 2015-07-29 | 李菊泉 | Material-water separating device |
| CN105202534A (en) * | 2015-09-22 | 2015-12-30 | 梁万泉 | Fresh air pre-heating fuel dust recovery type gasification furnace |
| CN105865023A (en) * | 2016-04-28 | 2016-08-17 | 安徽谷丰机械科技有限公司 | Environmentally friendly energy-saving type hot-blast stove |
| CN105865023B (en) * | 2016-04-28 | 2019-01-29 | 安徽谷丰机械科技有限公司 | A kind of environment-friendly and energy-efficient hot-blast stove |
| CN106333221A (en) * | 2016-08-15 | 2017-01-18 | 黄碧义 | Rotary wheel type drying system |
| CN106225521A (en) * | 2016-08-31 | 2016-12-14 | 浙江华顺炉业有限公司 | A kind of heat-treatment furnace cartridge type air preheater |
| CN107202423A (en) * | 2017-07-11 | 2017-09-26 | 叶培科 | A kind of heat-exchange system based on hot-blast stove |
| CN107202423B (en) * | 2017-07-11 | 2022-05-31 | 肇庆市元科机械科技有限公司 | Heat exchange system based on hot blast stove |
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Legal Events
| Date | Code | Title | Description |
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| 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 |