CN103383144A - Hot blast stove - Google Patents
Hot blast stove Download PDFInfo
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- CN103383144A CN103383144A CN2013103375090A CN201310337509A CN103383144A CN 103383144 A CN103383144 A CN 103383144A CN 2013103375090 A CN2013103375090 A CN 2013103375090A CN 201310337509 A CN201310337509 A CN 201310337509A CN 103383144 A CN103383144 A CN 103383144A
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- preheater
- blast stove
- housing
- flue
- preheaters
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Abstract
The invention discloses a hot blast stove. The hot blast stove comprises a liner, upper and lower bottom plates and upper and lower air collecting covers, wherein the upper and lower air collecting covers are fixedly connected with the upper and lower bottom plates, a plurality of ribbed plates are fixedly connected to the outer wall of the liner, a casing is arranged outside all the ribbed plate, upper and lower ends of the casing are fixedly connected with the upper and lower air collecting covers respectively, and the upper and lower air collecting covers are provided with air ports. The hot blast stove is characterized by further comprising at least two layers of preheaters which are arranged longitudinally, each layer of preheater comprises a case, upper and lower tube plates arranged in the case and a plurality of hollow heat exchange tubes, two ends of each hollow heat exchange tube are connected with the upper and lower tube plates, top covers are arranged on the liner and the upper end of the case of the top preheater respectively and connected through a channel, air ports are arranged on side walls of the cases of the top and bottom preheaters respectively, the air port of the top preheater is connected with the air port of the upper air collecting cover, the cases of two adjacent preheaters are connected, and sides of the cases of the two adjacent preheaters are connected through covers. The hot blast stove is capable of performing secondary utilization on flue gas and has the advantages of high heat exchange efficiency and good drying effect.
Description
Technical field
The present invention relates to a kind of hot-blast stove, especially for the hot-blast stove that raw-food material is dried.
Background technology
At present, for the hot-blast stove that raw-food material is dried, generally by concentric steel cylinder, the upper and lower bottom plate of the flue that is welded with the muscle sheet, three and flue and pass in and out air channel etc. and form, in existing hot-blast stove, the flue gas that thermal source produces is motion from bottom to top in flue, move from top to bottom by the intermediate annular interlayer, then enter atmosphere by smoke exhaust pipe; The air of required heating enters outermost annular gap by air inlet duct and moves from bottom to top, then the annular gap that enters innermost layer by the air channel moves from top to bottom, heat exchange is carried out on surface by two annular gaps and hot object, reach the purpose that adds hot-air, then send by the exhaust passage, material is heated; The existing main deficiency of hot-blast stove is: flue gas enters atmosphere after flue flows out, and this moment, it also contained higher heat energy, and Btu utilization is insufficient, and heat exchange efficiency is lower, and drying effect is not good enough.
Summary of the invention
The objective of the invention is provides a kind of hot-blast stove for the prior art above shortcomings, and it can carry out the secondary utilization to flue gas, has advantages of that heat exchange efficiency is high, good drying effect.
for achieving the above object, a kind of hot-blast stove of the present invention, the flue that comprises hollow, be fixed on flue, the lower end outside upper, lower shoe, respectively with upper, it is upper that lower shoe connects firmly, lower wind-collecting cover, be fixedly connected with the several piece gusset on the outer wall of flue, be provided with shell outside all gussets, on shell, lower two ends are respectively with upper, lower wind-collecting cover connects firmly, on, lower wind-collecting cover is equipped with blow vent, characterized by further comprising the two-layer at least preheater of vertical setting, every layer of preheater includes housing, be located at upper in housing, lower perforated plate, two ends are coupled to respectively, the heat exchanger tube of the several hollows on lower perforated plate, the housing upper end of flue and the top preheater is equipped with overhead guard, two overhead guards are connected by passage, the top and the housing sidewall of below preheater be equipped with blow vent, the blow vent of the top preheater is connected with the blow vent of upper wind-collecting cover, the housing of two adjacent preheaters links up and down, the housing sidepiece of two adjacent preheaters also is connected by case.
During use, flue gas passes into below flue, air passes into from the blow vent of below preheater, flue gas and air flow in opposite directions, and realize secondary heat exchange by preheater and flue, and air flows to the high-temperature region from low-temperature space, has advantages of that heat exchange efficiency is high, air exit temp is high, good drying effect;
As a further improvement on the present invention, the housing of two adjacent preheaters links up and down by flange; Be convenient to dismounting and the maintenance of preheater;
As a further improvement on the present invention, described gusset is spirality; Can extend the heat exchange stroke of air, can improve again the disturbance to air, improve the turbulence level of air, further improve heat exchange efficiency.
In sum, the present invention can carry out the secondary utilization to flue gas, has advantages of that heat exchange efficiency is high, air exit temp is high, good drying effect.
Description of drawings
Fig. 1 is the front view of the embodiment of the present invention.
Fig. 2 is the front view of flue and gusset.
The specific embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing.
as Fig. 1, shown in Figure 2, this hot-blast stove comprises the flue 1 of hollow, welding is fixed on flue, upper plate 2 and the lower shoe 3 in the outside, lower end, respectively with upper, lower shoe 2, upper wind-collecting cover 4 and lower wind-collecting cover 5 that 3 welding connect firmly, three layers of preheater 10 that vertically arrange, 11, 12, be welded with the spiral gusset 6 of several piece on the outer wall of flue 1, be provided with shell 7 outside all gussets 6, on shell 7, lower two ends are respectively with upper, lower wind-collecting cover 4, 5 welding connect firmly, and upper wind-collecting cover 4 is provided with blow vent 8, and lower wind-collecting cover 5 is provided with blow vent 9, every layer of preheater 10, 11, 12 include housing 13, be located at upper perforated plate 14 and lower perforated plate 15 in housing 13, two ends are coupled to respectively, lower perforated plate 14, the heat exchanger tube 16 of the several hollows on 15, the housing upper end of flue 1 and the top preheater 10 is equipped with overhead guard 17, two overhead guards 17 are connected by passage 18, the housing sidewall of the top preheater 10 is provided with blow vent 19, the housing sidewall of below preheater 12 is provided with blow vent 20, blow vent 19 is connected with the blow vent 8 of upper wind-collecting cover 4, two adjacent preheaters 10, 11 housing links up and down by flange 21, and two adjacent preheaters 10 also are connected by case 22 or 23 with 12 housing sidepiece with 11 and 11, and the housing lower end outlet of preheater 12 is as exhanst gas outlet.
during use, flue gas passes into from flue 1 below, through flue 1, each preheater 12, 13, 14 heat exchanger tube 16 is discharged from exhanst gas outlet, air passes into from the blow vent 20 of below preheater 12, through case 22, 23 flow in the housing of each preheater, the upper wind-collecting cover 4 of flowing through again, shell 7, lower wind-collecting cover 5 is discharged from blow vent 9, flue gas and air flow in opposite directions, and by each preheater 12, 13, 1 heat exchanger tube 16 and flue 1 are realized secondary heat exchange, and air flows to the high-temperature region from low-temperature space, add that spiral gusset 6 can extend the heat exchange stroke of air, can improve again the disturbance to air, improve the turbulence level of air, further improve heat exchange efficiency.The present invention has advantages of that heat exchange efficiency is high, air exit temp is high, good drying effect.
Claims (3)
1. hot-blast stove, the flue that comprises hollow, be fixed on flue, the lower end outside upper, lower shoe, respectively with upper, it is upper that lower shoe connects firmly, lower wind-collecting cover, be fixedly connected with the several piece gusset on the outer wall of flue, be provided with shell outside all gussets, on shell, lower two ends are respectively with upper, lower wind-collecting cover connects firmly, on, lower wind-collecting cover is equipped with blow vent, characterized by further comprising the two-layer at least preheater of vertical setting, every layer of preheater includes housing, be located at upper in housing, lower perforated plate, two ends are coupled to respectively, the heat exchanger tube of the several hollows on lower perforated plate, the housing upper end of flue and the top preheater is equipped with overhead guard, two overhead guards are connected by passage, the top and the housing sidewall of below preheater be equipped with blow vent, the blow vent of the top preheater is connected with the blow vent of upper wind-collecting cover, the housing of two adjacent preheaters links up and down, the housing sidepiece of two adjacent preheaters also is connected by case.
2. a kind of hot-blast stove as claimed in claim 1, is characterized in that the housing of two adjacent preheaters links up and down by flange.
3. a kind of hot-blast stove as claimed in claim 1 or 2, is characterized in that described gusset is spirality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103375090A CN103383144A (en) | 2013-08-06 | 2013-08-06 | Hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103375090A CN103383144A (en) | 2013-08-06 | 2013-08-06 | Hot blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103383144A true CN103383144A (en) | 2013-11-06 |
Family
ID=49491005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103375090A Pending CN103383144A (en) | 2013-08-06 | 2013-08-06 | Hot blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103383144A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994461A (en) * | 2014-05-09 | 2014-08-20 | 青岛德固特节能装备股份有限公司 | Inverted high-temperature air pre-heater structure |
| 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 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045388U (en) * | 1989-01-05 | 1989-10-04 | 鞍山钢铁公司 | Cas preheating device for blast furnace hot blast stove |
| CN2291629Y (en) * | 1996-12-20 | 1998-09-16 | 黄瑜 | Split coal-fired hot-blast furnace |
| CN2713376Y (en) * | 2004-08-04 | 2005-07-27 | 梁汉华 | A hot blast furnace |
| CN201615597U (en) * | 2010-02-01 | 2010-10-27 | 卢俊善 | Hot blast furnace |
| CN201917059U (en) * | 2010-09-13 | 2011-08-03 | 南宁市创宇茶叶机械有限公司 | Energy-saving and high-temperature blast stove |
| CN102278816A (en) * | 2011-05-26 | 2011-12-14 | 黄云生 | Efficient energy-saving hot blast furnace |
| CN202350301U (en) * | 2011-11-24 | 2012-07-25 | 合肥麦稻之星机械科技有限公司 | Rice hull hot air furnace capable of fully combusting rice hulls |
| CN202630392U (en) * | 2012-06-06 | 2012-12-26 | 唐山市金沙工贸有限公司 | High temperature radiation indirect air heating furnace |
| CN102997413A (en) * | 2012-11-27 | 2013-03-27 | 四川省登尧机械设备有限公司 | Metal hot blast heater |
| CN203432078U (en) * | 2013-08-06 | 2014-02-12 | 叙永县马岭粮油食品有限公司 | Hot blast stove |
-
2013
- 2013-08-06 CN CN2013103375090A patent/CN103383144A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045388U (en) * | 1989-01-05 | 1989-10-04 | 鞍山钢铁公司 | Cas preheating device for blast furnace hot blast stove |
| CN2291629Y (en) * | 1996-12-20 | 1998-09-16 | 黄瑜 | Split coal-fired hot-blast furnace |
| CN2713376Y (en) * | 2004-08-04 | 2005-07-27 | 梁汉华 | A hot blast furnace |
| CN201615597U (en) * | 2010-02-01 | 2010-10-27 | 卢俊善 | Hot blast furnace |
| CN201917059U (en) * | 2010-09-13 | 2011-08-03 | 南宁市创宇茶叶机械有限公司 | Energy-saving and high-temperature blast stove |
| CN102278816A (en) * | 2011-05-26 | 2011-12-14 | 黄云生 | Efficient energy-saving hot blast furnace |
| CN202350301U (en) * | 2011-11-24 | 2012-07-25 | 合肥麦稻之星机械科技有限公司 | Rice hull hot air furnace capable of fully combusting rice hulls |
| CN202630392U (en) * | 2012-06-06 | 2012-12-26 | 唐山市金沙工贸有限公司 | High temperature radiation indirect air heating furnace |
| CN102997413A (en) * | 2012-11-27 | 2013-03-27 | 四川省登尧机械设备有限公司 | Metal hot blast heater |
| CN203432078U (en) * | 2013-08-06 | 2014-02-12 | 叙永县马岭粮油食品有限公司 | Hot blast stove |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994461A (en) * | 2014-05-09 | 2014-08-20 | 青岛德固特节能装备股份有限公司 | Inverted high-temperature air pre-heater structure |
| 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 |
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Application publication date: 20131106 |