CN203432300U - Hot air circulation device of tunnel kiln - Google Patents

Hot air circulation device of tunnel kiln Download PDF

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Publication number
CN203432300U
CN203432300U CN201320535386.7U CN201320535386U CN203432300U CN 203432300 U CN203432300 U CN 203432300U CN 201320535386 U CN201320535386 U CN 201320535386U CN 203432300 U CN203432300 U CN 203432300U
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CN
China
Prior art keywords
air
circulation
hot air
burner hearth
sides
Prior art date
Application number
CN201320535386.7U
Other languages
Chinese (zh)
Inventor
余阳春
付力
余新焕
陈雄军
Original Assignee
黄冈市中洲安达热工设备有限公司
Priority date (The priority date 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 date listed.)
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Application filed by 黄冈市中洲安达热工设备有限公司 filed Critical 黄冈市中洲安达热工设备有限公司
Priority to CN201320535386.7U priority Critical patent/CN203432300U/en
Application granted granted Critical
Publication of CN203432300U publication Critical patent/CN203432300U/en

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Abstract

The utility model discloses a hot air circulation device of a tunnel kiln. The hot air circulation device solves the problems of low product pass percent and low overall heating efficiency of a furnace due to the fact that refractory materials are not evenly heated. The hot air circulation device is characterized in that a hot air circulation fan (9) is arranged on the furnace top of a preheat section of the tunnel kiln, circulation air ducts (13) are arranged on the two sides of a hearth, an air hood (8) is arranged on the top of the hearth, a air suction opening formed in the top of the air hood (8) is connected with an air inlet of the circulation fan (9), an air distributing plate (11) is arranged at the bottom of the air hood (8), and a hot air pipeline (7) is arranged in the air hood (8). The hot air circulation device has the advantages of being even in heating, easy to control in temperature, good in product quality, and the like. Fire nozzles are omitted, gas consumption is reduced, work efficiency is improved, the firing pass percent of products can be 99%, and energy is saved by 38%.

Description

Tunnel cave heated air circulation device
One, technical field
The invention belongs to the Thermal Equipment that refractory material burns till, relate in particular to make stable temperature control in stove, the efficiency of heating surface is high, being heated evenly property of refractory material is good tunnel cave heated air circulation device.
Two, background technology
In recent years, along with advancing by leaps and bounds of domestic and international industrial equipment technology, be widely used in the demand of the refractory materials such as metallurgy industry, steel industry, non-ferrous metals industry, chemical industry, ceramic industry constantly soaring.The temperature homogeneity of refractory material in sintering process is one of factor affecting refractory quality quality, although the resistance to material quality of China is reached advanced world standards, resistance to wood property can be able to match in excellence or beauty with the resistance to material of external import, but the surface quality of resistance to material, tissue and mechanical property etc. are still unstable, and causing one of unsettled principal element of above-mentioned quality is that the material that mode of heating causes is heated inhomogeneous.The current production equipment and process of resistance to material difference of technology level is larger, and a lot of products are because the backwardness of equipment, and the inherent shortcoming of mode of heating cannot meet the heat request that adds of product, has reduced properties of product; Meanwhile, unstable due to what be heated, can cause the unstable of resistance to wood property energy.General similar production equipment also exists body of heater long, the problems such as configuration, and this has increased cost to enterprise virtually.Generally speaking, prior art mainly exists resistance to section product to be heated inhomogeneously to cause that product percent of pass is low, temperature controls the problems such as unstable, stove overall thermal efficiency is low.
Three, summary of the invention
Object of the present invention is exactly in order to address the above problem, for market provides a kind of tunnel cave heated air circulation device that product is heated evenly, temperature control is easy, stove overall thermal efficiency is high that makes.
Technical scheme of the present invention is: it is by exterior wall, heat-preserving wall, furnace roof, at the bottom of kiln, the bent parts such as brick and kiln car that seal form, at tunnel cave preheating section furnace roof, hot air circulation blower is installed, burner hearth both sides arrange the circulation air path being comprised of lining and Side fascia, by channel-section steel, be secured by bolts in the inwall of heat-preserving wall, roof of the furnace is provided with fan housing, by supporting plate, be fixedly installed on the circulation air path of both sides in burner hearth, inlet scoop, fan housing top is connected with the air inlet of circulating fan, its bottom is provided with split-wind plate, inside establish hot air duct, the air outlet of circulating fan communicates with the circulation air path that is arranged at burner hearth both sides.
The beneficial effects of the utility model are: because circulation air path has been set up in both sides in burner hearth, with burner hearth isolation, hot blast is recycled blower fan and sucks from burner hearth, sends, thereby complete hot air circulation from side wall air channel, both sides, makes furnace temperature more even.This structure has homogeneous heating, and temperature is easy to the advantages such as control, good quality of product, has reduced burner and has arranged and gas consumption, and improved operating efficiency, product sintering qualified rate reaches 99%, and energy-conservation 38%.Below in conjunction with accompanying drawing, the invention will be further described.
Four, accompanying drawing explanation
Fig. 1 is the utility model cross section structure front view.
In figure: 1 is exterior wall, 2 is heat-preserving wall, and 3 is furnace roof, and 4 is bent envelope brick, and 5 is kiln car, and 6 is product, and 7 is hot air duct, and 8 is fan housing, and 9 is circulating fan, and 11 is split-wind plate, and 12 is supporting plate, and 13 is circulation air path, and 14 is lining, and 15 is Side fascia, and 16 is channel-section steel.
Five, the specific embodiment
Take the enterprise that builds a 117.4m high temp tunnel is example, and in the temperature rise period of this tunnel cave, because a code number of plies is high, quantity is large, and simple traditional heating mode can make each kiln car carry the upper and lower temperature difference of resistance to material large, the shortcomings that internal-external temperature difference is large.The temperature rise period of this tunnel cave heated air circulation device is set, this device is, at tunnel cave preheating section furnace roof 3, hot air circulation blower 9 is installed, the circulation air path 13 that the lining 14 that the setting of burner hearth both sides is made by corrosion resistant plate and Side fascia 15 form, by channel-section steel 16, be secured by bolts in the inwall of heat-preserving wall 2, roof of the furnace is provided with fan housing 8, by supporting plate 12, be fixedly installed on the circulation air path 13 of both sides in burner hearth, fan housing 8 inlet scoops, top are connected with the air inlet of circulating fan 9, its bottom is provided with split-wind plate 11, inside establish hot air duct 7, the air outlet of circulating fan 9 communicates with the circulation air path 13 that is arranged at burner hearth both sides.Enforcement of the present utility model, is first that high-temperature flue gas enters hot air duct 7, by minute wind hole on hot air duct 7, is blown in burner hearth.Under the effect of circulating fan 9, the inlet scoop by the hot blast in burner hearth from fan housing 8 sucks, and delivers in the circulation air path 13 of both sides side wall, from side wall circulation air path 13 bottoms, blows out, and enters burner hearth.Under the draft effect of circulating fan 9, high-temperature flue gas constantly flows to furnace roof direction.Because the circulation fan housing bottom of installing at furnace roof is provided with split-wind plate 11.High-temperature flue gas runs into after split-wind plate 11, sucked uniformly in circulating fan 9 in the air outlet of both sides is sent into the circulation air path 13 of burner hearth both sides, so repeatedly, thereby caused the Uniform Flow of the inner flue gas of whole burner hearth, reach balanced oven cavity atmosphere, thereby realize the object of improving the quality of products.

Claims (1)

1. a tunnel cave heated air circulation device, it comprises exterior wall (1), heat-preserving wall (2), furnace roof (3), bent envelope brick (4) and kiln car (5) at the bottom of kiln, it is characterized in that: at tunnel cave preheating section furnace roof (3), hot air circulation blower (9) is installed, burner hearth both sides arrange the circulation air path (13) being comprised of lining (14) and Side fascia (15), by channel-section steel (16), be secured by bolts in the inwall of heat-preserving wall (2), roof of the furnace is provided with fan housing (8), by supporting plate (12), be fixedly installed on the circulation air path (13) of both sides in burner hearth, fan housing (8) inlet scoop, top is connected with the air inlet of circulating fan (9), its bottom is provided with split-wind plate (11), inside establish hot air duct (7), the air outlet of circulating fan (9) communicates with the circulation air path (13) that is arranged at burner hearth both sides.
CN201320535386.7U 2013-08-30 2013-08-30 Hot air circulation device of tunnel kiln CN203432300U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320535386.7U CN203432300U (en) 2013-08-30 2013-08-30 Hot air circulation device of tunnel kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320535386.7U CN203432300U (en) 2013-08-30 2013-08-30 Hot air circulation device of tunnel kiln

Publications (1)

Publication Number Publication Date
CN203432300U true CN203432300U (en) 2014-02-12

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Family Applications (1)

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CN201320535386.7U CN203432300U (en) 2013-08-30 2013-08-30 Hot air circulation device of tunnel kiln

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CN (1) CN203432300U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103940222A (en) * 2014-05-06 2014-07-23 胡妍 Tunnel kiln
CN103983107A (en) * 2014-05-04 2014-08-13 卢群山 Liquefied gas oxidizing flame furnace for firing ceramic products
CN104457282A (en) * 2014-12-21 2015-03-25 湖北华夏窑炉工业(集团)有限公司 Air distribution system for SCR plate-type catalyst continuous calcining furnace
CN104791801A (en) * 2015-04-30 2015-07-22 陈秋松 Waste incineration device
CN105605915A (en) * 2014-05-06 2016-05-25 曹新民 Movable tunnel furnace capable of heating by utilizing heated air circulation
CN106052382A (en) * 2016-06-20 2016-10-26 北京机电研究所 High-precision heating furnace for aluminum alloy control arm
CN107860220A (en) * 2017-10-31 2018-03-30 广西旭腾实业集团有限公司 Energy-efficient automation tunnel cave

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983107A (en) * 2014-05-04 2014-08-13 卢群山 Liquefied gas oxidizing flame furnace for firing ceramic products
CN103983107B (en) * 2014-05-04 2016-05-11 卢群山 Ceramic is fired with liquefied gas oxidizing flame kiln
CN103940222A (en) * 2014-05-06 2014-07-23 胡妍 Tunnel kiln
CN105605915B (en) * 2014-05-06 2017-10-13 赵牧青 A kind of removable continuous tunnel furnace heated using hot air circulation
CN103940222B (en) * 2014-05-06 2015-10-07 胡妍 A kind of continuous tunnel furnace
CN105605915A (en) * 2014-05-06 2016-05-25 曹新民 Movable tunnel furnace capable of heating by utilizing heated air circulation
CN104457282A (en) * 2014-12-21 2015-03-25 湖北华夏窑炉工业(集团)有限公司 Air distribution system for SCR plate-type catalyst continuous calcining furnace
CN104791801B (en) * 2015-04-30 2017-04-12 陈秋松 Waste incineration device
CN104791801A (en) * 2015-04-30 2015-07-22 陈秋松 Waste incineration device
CN106052382A (en) * 2016-06-20 2016-10-26 北京机电研究所 High-precision heating furnace for aluminum alloy control arm
CN107860220A (en) * 2017-10-31 2018-03-30 广西旭腾实业集团有限公司 Energy-efficient automation tunnel cave

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140212

Termination date: 20150830

EXPY Termination of patent right or utility model