CN201199124Y - External hot air cupola with long age - Google Patents
External hot air cupola with long age Download PDFInfo
- Publication number
- CN201199124Y CN201199124Y CNU2008200215643U CN200820021564U CN201199124Y CN 201199124 Y CN201199124 Y CN 201199124Y CN U2008200215643 U CNU2008200215643 U CN U2008200215643U CN 200820021564 U CN200820021564 U CN 200820021564U CN 201199124 Y CN201199124 Y CN 201199124Y
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- furnace
- cupola
- heat
- water
- feed inlet
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Abstract
The utility model discloses a cupola furnace with outside hot blast and long service life. The cupola comprises furnace legs, a main structure of the furnace installed over the furnace legs, a water-cooled tuyere pipe installed on the side face at the upper part of the main structure of the furnace, a furnace body installed over the main structure of the furnace, a feed inlet body installed over the furnace body, a water-cooled spray system installed on the side faces of the furnace body and the feed inlet body, a flue gas outlet pipe installed on the side face at the lower part of the feed inlet body and a chimney installed over the feed inlet body, wherein, the flue gas outlet pipe is connected with a combustion chamber of a heat exchanger and the water-cooled tuyere pipe is connected with a heat exchange system of the heat exchanger. The cupola furnace has the advantages of good performance in smelting process, high efficiency of heat utilization, energy conservation, good cooling effect and long service life, and can be applied to the process of smelting molten iron in the foundry industry.
Description
Affiliated technical field the present invention relates to a kind of external hot air liong service period cupola, can be widely used in the fusion process of casting industry molten iron.
The existing furnace cupola of background technology, on the effective rate of utilization of heat, be used for furnace charge fusing and the overheated heat of molten iron and be approximately 25%～35% of heat total expenditure, the heat that furnace gas is taken away, comprise sensible heat and potential chemical heat, also more than the heat that is used to obtain molten iron, be generally 40%～55% of total amount of heat expenditure.In the total amount of heat of furnace cupola furnace gas, potential chemical heat accounts for 80%～85%.Therefore, the burning of this kind furnace cupola is insufficient, and energy dissipation is serious, and the effective rate of utilization of heat is low, furnace wall iron easy to hang, dross, the smelting technology poor performance, the water cooling weak effect, stream time is short, the refractory consumption rate amount is big, and maintenance time is long, and service life is short, and environmental pollution is big.
Summary of the invention the object of the present invention is to provide that a kind of smelting technology performance is good, the external hot air liong service period cupola of the effective rate of utilization height of heat, energy-conservation, good cooling results, long service life.
In order to achieve the above object, external hot air liong service period cupola of the present invention, comprise the stove leg, be installed in the furnace main body of stove leg top, be installed in the water cooled tuyere pipeline on the furnace main body upper side, be installed in the shaft of furnace main body top, be installed in the charge door body of shaft top, be installed in the water-cooled spray system on shaft and the charge door body side surface, the flue gas that is installed on the charge door body lower side is extracted a mouthful pipeline out, is installed in the chimney of charge door body top; Said flue gas is extracted a mouthful pipeline out, joins with the heat exchanger combustion chamber, and said water cooled tuyere pipeline joins with the heat exchanger heat-exchange system.
External hot air liong service period cupola of the present invention, its operation principle is: extract a mouthful pipeline out by flue gas furnace gas is guided to outside the stove, enter the heat exchanger combustion chamber, make the CO full combustion of gas, through heat exchanger, the air in itself and the heat-exchanging tube bundle is carried out heat exchange, so that external hot air to be provided, be transported in the furnace cupola by the external hot air of water cooled tuyere pipeline after again, make full use of the heat in the waste gas heat exchange.
External hot air liong service period cupola of the present invention, the external burning of CO gas, heat exchange heat air delivery, hot blast temperature is stable, and physics, the chemical heat of flue gas all are fully used, heat waste is few, through burning, heat exchange, cold wind is preheating to high temperature more than 450 ℃, the effective rate of utilization height of heat by room temperature, send in the stove again, thereby the raising molten iron temperature is saved coke fuel, reaches purpose of energy saving.
External hot air liong service period cupola of the present invention, because of adopting the water-cooled spray system, cooling is even, and parts can be because of overheated damage, the long service life of causing.
External hot air liong service period cupola of the present invention proves through prototype experiment, and the working of a furnace is stable, and hot blast temperature is stabilized in more than 450 ℃, blast intensity is easy to control, and the molten iron tapping temperature can reach 1500 ℃～1550 ℃, the molten iron temperature height, and melting loss of elements is few, lining-less corrodes, and the quantity of slag is few, and excellent desulfurizing effect is arranged.Therefore, the smelting technology performance is good.
In sum, external hot air liong service period cupola of the present invention, the smelting technology performance is good, and the effective rate of utilization height of heat is energy-conservation, good cooling results, long service life.
Description of drawings is done further explanation below in conjunction with accompanying drawing and embodiment to the present invention.
Fig. 1 is a structural representation of the present invention.
The specific embodiment is in Fig. 1, external hot air liong service period cupola of the present invention, comprise stove leg 1, be installed in the furnace main body 2 of stove leg top, be installed in the water cooled tuyere pipeline 3 on the furnace main body upper side, be installed in the shaft 4 of furnace main body top, be installed in the charge door body 5 of shaft top, be installed in the water-cooled spray system 6 on shaft and the charge door body side surface, the flue gas that is installed on the charge door body lower side is extracted a mouthful pipeline 7 out, is installed in the chimney 8 of charge door body top; Said flue gas is extracted a mouthful pipeline 7 out, joins with heat exchanger combustion chamber 9, and said water cooled tuyere pipeline 3 joins with heat exchanger heat-exchange system 10.
Claims (1)
1. external hot air liong service period cupola, it is characterized in that, comprise the stove leg, be installed in the furnace main body of stove leg top, be installed in the water cooled tuyere pipeline on the furnace main body upper side, be installed in the shaft of furnace main body top, be installed in the charge door body of shaft top, be installed in the water-cooled spray system on shaft and the charge door body side surface, the flue gas that is installed on the charge door body lower side is extracted a mouthful pipeline out, is installed in the chimney of charge door body top; Said flue gas is extracted a mouthful pipeline out, joins with the heat exchanger combustion chamber, and said water cooled tuyere pipeline joins with the heat exchanger heat-exchange system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200215643U CN201199124Y (en) | 2008-04-27 | 2008-04-27 | External hot air cupola with long age |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200215643U CN201199124Y (en) | 2008-04-27 | 2008-04-27 | External hot air cupola with long age |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201199124Y true CN201199124Y (en) | 2009-02-25 |
Family
ID=40450279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200215643U Expired - Fee Related CN201199124Y (en) | 2008-04-27 | 2008-04-27 | External hot air cupola with long age |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201199124Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307889A (en) * | 2012-03-14 | 2013-09-18 | 段金挺 | Gradient utilization method for waste heat of cupola furnace |
-
2008
- 2008-04-27 CN CNU2008200215643U patent/CN201199124Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307889A (en) * | 2012-03-14 | 2013-09-18 | 段金挺 | Gradient utilization method for waste heat of cupola furnace |
| CN103307889B (en) * | 2012-03-14 | 2015-01-14 | 段金挺 | Gradient utilization method for waste heat of cupola furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QINGDAO ZHONGZHIDA ENVIRONMENTAL PROTECTION SMELTI Free format text: FORMER OWNER: DUAN JINTING Effective date: 20090911 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090911 Address after: Shen Jia Jia, Gaozhou North Road, Jiaozhou, Shandong, Qingdao Province, China: 266300 Patentee after: Qingdao Zhongzhida Melting Equipments Of Environmental Protection Co., Ltd. Address before: Jiaozhou, Shandong Province, Beizhen cement Village North Industrial Park, the postcode: 266300 Patentee before: Duan Jinting |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20100427 |