CN201199124Y - External hot air cupola with long age - Google Patents

External hot air cupola with long age Download PDF

Info

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
Authority
CN
China
Prior art keywords
furnace
heat
cupola
water
hot air
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
Application number
CNU2008200215643U
Other languages
Chinese (zh)
Inventor
段金挺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Zhongzhida Melting Equipments Of Environmental Protection Co., Ltd.
Original Assignee
段金挺
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.)
Filing date
Publication date
Application filed by 段金挺 filed Critical 段金挺
Priority to CNU2008200215643U priority Critical patent/CN201199124Y/en
Application granted granted Critical
Publication of CN201199124Y publication Critical patent/CN201199124Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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

The external hot air liong service period cupola
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.
CNU2008200215643U 2008-04-27 2008-04-27 External hot air cupola with long age Expired - Fee Related CN201199124Y (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN103307889B (en) Gradient utilization method for waste heat of cupola furnace
CN202066385U (en) Novel waste heat recovery and use device
CN202182624U (en) Energy-saving aluminium melting conjuncted furnace
CN2852009Y (en) External heating and blowing non-lining water-cooled cupola
CN201199124Y (en) External hot air cupola with long age
CN201539967U (en) Energy-saving circulated air heat-insulating type hot blast stove
CN203174129U (en) Flue gas self-circulation combustion system of blast furnace hot blast stove
CN101928796A (en) High wind temperature energy saving and emission reduction combined preheating method for blast furnace
CN103882163A (en) Method and device for recovering sensible heat of molten blast furnace slag
CN101995166A (en) Metallurgical furnace dedusting waste heat recovery machine and method
CN207065542U (en) A kind of afterheat of slags utilizes device
CN207247873U (en) Electrical heating shaft furnace material forced heat-exchanging device
CN201653168U (en) Heat pipe type waste heat recovery special apparatus for high temperature high dust laden smoke in metallurgy furnace
CN201203342Y (en) Direct combustion type overhead combustion chamber cupola
CN201277706Y (en) Temperature keeping apparatus for heat accumulation type hot air stove
CN201625781U (en) Energy-saving, environment-friendly and stokehole casting furnace
CN201561647U (en) Energy-saving high-efficiency combined aluminum melting furnace
CN201289326Y (en) Combined metal heat exchanger
CN203794917U (en) Device for recycling sensible heat of molten blast furnace slag
CN2913997Y (en) Overhead outer blast-heating cupola
CN201514097U (en) Carbon bed natural gas cupola
CN201463616U (en) Oil/gas melting furnace flue gas heat exchange device
CN2171830Y (en) Water cooled cupola without furnace liner
CN202350080U (en) Heat pipe type air preheater
CN202885517U (en) Sandwich heating aluminum melting furnace system

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
C41 Transfer of patent application or patent right or utility model
ASS Succession or assignment of patent right

Owner name: QINGDAO ZHONGZHIDA ENVIRONMENTAL PROTECTION SMELTI

Free format text: FORMER OWNER: DUAN JINTING

Effective date: 20090911

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

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

Granted publication date: 20090225

Termination date: 20100427

C17 Cessation of patent right