CN103822469A - Box-type resistance furnace - Google Patents

Box-type resistance furnace Download PDF

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Publication number
CN103822469A
CN103822469A CN201210467324.7A CN201210467324A CN103822469A CN 103822469 A CN103822469 A CN 103822469A CN 201210467324 A CN201210467324 A CN 201210467324A CN 103822469 A CN103822469 A CN 103822469A
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China
Prior art keywords
furnace
heater
resistance furnace
electric resistance
type electric
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Application number
CN201210467324.7A
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Chinese (zh)
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CN103822469B (en
Inventor
马建国
朱仁方
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The new south of the River Lu Ye Science and Technology Ltd. in Jiangsu
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Danyang Jiangnan Industrial Furnace Co Ltd
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Priority to CN201210467324.7A priority Critical patent/CN103822469B/en
Publication of CN103822469A publication Critical patent/CN103822469A/en
Application granted granted Critical
Publication of CN103822469B publication Critical patent/CN103822469B/en
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Abstract

The invention provides a box-type resistance furnace comprising a furnace stand, a furnace body and a heating element. The furnace body is fixed on the furnace stand and provided with a hearth inside. The furnace body comprises a furnace shell, an insulation layer and a fireproof layer sequentially from outside to inside. The fireproof layer is made out of refractory bricks smaller than 1100kg/m<3> in density. The insulation layer is made of aluminum silicate refractory fiber. The space between the furnace shell and the insulation layer is filled with vermiculite powder. The heating element is made of corrugated resistance tapes evenly disposed on the refractory layer of the furnace body. Two sides of the furnace body are provided with furnace doors which both are side-opening doors. Each furnace door comprises an inner layer of refractory cellucotton and an outer layer of a steel plate. The box-type resistance furnace is high in loading capacity and high in production efficiency, especially suitable for thermal treatment of small and medium sized machine parts, uniform in furnace temperature and good in insulation effect, can save energy by more than 20%, and is pollution free and good in environmental protection benefit.

Description

Chamber type electric resistance furnace
Technical field
The present invention relates to a kind of resistance furnace, relate in particular to a kind of chamber type electric resistance furnace.
Background technology
In the use procedure of chamber type electric resistance furnace, require the body of heater of chamber type electric resistance furnace should there is good heat insulation and preservation effect, cause resource not make full use of to avoid the heat loss of chamber type electric resistance furnace, affect the raising of productivity effect., for making to improve process velocity, should guarantee under the prerequisite of production safety meanwhile, be convenient to the burner hearth of processing work turnover chamber type electric resistance furnace.The problems referred to above are the problems that should solve in the design and production process of chamber type electric resistance furnace.
Summary of the invention
The object of this invention is to provide a kind of chamber type electric resistance furnace solves in the use procedure of chamber type electric resistance furnace, require the body of heater of chamber type electric resistance furnace should there is good heat insulation and preservation effect, cause resource not make full use of to avoid the heat loss of chamber type electric resistance furnace, affect the problem of the raising of productivity effect.
Technical solution of the present invention is:
A kind of chamber type electric resistance furnace, comprise grate, body of heater and heating element heater, described body of heater is fixed on grate, and the inside of described body of heater is provided with burner hearth, described body of heater comprises furnace shell, heat-insulation layer and the flame retardant coating that ecto-entad sets gradually, and described flame retardant coating adopts density to be less than 1100kg/m 3refractory brick, described heat-insulation layer adopts aluminosilicate refractory fiber, between described furnace shell and heat-insulation layer, be filled with frog stone flour, described heating element heater adopts corrugated resistive band, described resistive band is evenly arranged on the flame retardant coating of described body of heater, the both sides of described body of heater are equipped with fire door, and described fire door includes the skin that the internal layer be made up of refractory fiber cotton and steel plate are made.
Further improve and be: described fire door is laterally opened fire door.
Further improve and be: the sealing part of described fire door is provided with " protruding " type edge sealing that refractory fiber cotton is made, and described body of heater is provided with the groove suitable with described edge sealing.
Further improve and be: described flame retardant coating adopts density 700-1100kg/m 3refractory brick.
Further improve and be: described body of heater is provided with thermocouple, and described burner hearth is inserted in the end of described thermocouple.
Further improve and be: the thermocouple that described thermocouple is nickel chromium triangle-nisiloy.
A kind of chamber type electric resistance furnace of the present invention, by the flame retardant coating and the heat-insulation layer that adopt the few light material of amount of stored heat to make, and between furnace shell and heat-insulation layer, be filled with frog stone flour, keep fire box temperature, the minimizing thermal loss of chamber type electric resistance furnace, improve the production efficiency of chamber type electric resistance furnace.Furnace temperature in the burner hearth of this kind of chamber type electric resistance furnace evenly and high insulating effect, energy-conservation reaching more than 20%.This kind of chamber type electric resistance furnace, useful load is large, in the both sides of body of heater, fire door is all set, so that the workpiece of needs processing is packed and taken out into the burner hearth of chamber type electric resistance furnace, is effectively guaranteeing that under the prerequisite of production safety, speed can speed operations.The sealing part of fire door is provided with " protruding " type edge sealing that refractory fiber cotton is made, and described body of heater is provided with the groove suitable with described edge sealing, thereby in the time that fire door is closed, sealing enter on body of heater for groove in, strengthen the sealing between fire door and body of heater, strengthen heat insulation and preservation effect, reduce heat loss.Be provided with thermocouple at body of heater, insert in burner hearth the end of thermocouple, uses nickel chromium-nickel silicon thermocouple directly to measure the operating temperature in the burner hearth of chamber type electric resistance furnace.
The invention has the beneficial effects as follows: a kind of chamber type electric resistance furnace of the present invention, useful load is large, productivity ratio is high, is specially adapted to heat treatment heating little, medium-sized parts, and furnace temperature is even, high insulating effect, energy-conservation reaching more than 20%, and pollution-free, environmental benefit is good.This kind of chamber type electric resistance furnace, reasonable in design, the sealing part of fire door is provided with " protruding " type edge sealing that refractory fiber cotton is made, described body of heater is provided with the groove suitable with described edge sealing, thereby in the time that fire door is closed, sealing enter on body of heater for groove in, strengthen the sealing between fire door and body of heater, strengthen heat insulation and preservation effect, reduce heat loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Wherein: 1-grate, 2-heating element heater, 3-furnace shell, 4-heat-insulation layer, 5-flame retardant coating, 6-fire door, 7-thermocouple.
The specific embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the present embodiment provides a kind of chamber type electric resistance furnace, comprise grate 1, body of heater and heating element heater 2, described body of heater is fixed on grate 1, the inside of described body of heater is provided with burner hearth, described body of heater comprises furnace shell 3, heat-insulation layer 4 and the flame retardant coating 5 that ecto-entad sets gradually, and described flame retardant coating 5 adopts density to be less than 1100kg/m 3, preferably 900kg/m 3refractory brick, described heat-insulation layer 4 adopts aluminosilicate refractory fiber, between described furnace shell 3 and heat-insulation layer 4, be filled with frog stone flour, described heating element heater 2 adopts corrugated resistive band, described resistive band is evenly arranged on the flame retardant coating 5 of described body of heater, the both sides of described body of heater are equipped with fire door 6, and described fire door 6 includes the skin that the internal layer be made up of refractory fiber cotton and steel plate are made.Described fire door 6 is laterally opened fire door 6.The sealing part of described fire door 6 is provided with " protruding " type edge sealing that refractory fiber cotton is made, and described body of heater is provided with the groove suitable with described edge sealing.Described body of heater is provided with thermocouple 7, and described burner hearth is inserted in the end of described thermocouple 7.The thermocouple that described thermocouple 7 is nickel chromium triangle-nisiloy.
A kind of chamber type electric resistance furnace of the present embodiment, by the flame retardant coating 5 and the heat-insulation layer 4 that adopt the few light material of amount of stored heat to make, and between furnace shell 3 and heat-insulation layer 4, be filled with frog stone flour, keep fire box temperature, the minimizing thermal loss of chamber type electric resistance furnace, improve the production efficiency of chamber type electric resistance furnace.Furnace temperature in the burner hearth of this kind of chamber type electric resistance furnace evenly and high insulating effect, energy-conservation reaching more than 20%.This kind of chamber type electric resistance furnace, useful load is large, in the both sides of body of heater, fire door 6 is all set, so that the workpiece of needs processing is packed and taken out into the burner hearth of chamber type electric resistance furnace, is effectively guaranteeing that under the prerequisite of production safety, speed can speed operations.The sealing part of fire door 6 is provided with " protruding " type edge sealing that refractory fiber cotton is made, described body of heater is provided with the groove suitable with described edge sealing, thereby in the time that fire door 6 is closed, sealing enter on body of heater for groove in, strengthen the sealing between fire door 6 and body of heater, strengthen heat insulation and preservation effect, reduce heat loss.Be provided with thermocouple 7 at body of heater, insert in burner hearth the end of thermocouple 7, uses nickel chromium-nickel silicon thermocouple directly to measure the operating temperature in the burner hearth of chamber type electric resistance furnace.
The beneficial effect of the present embodiment is: a kind of chamber type electric resistance furnace of the present embodiment, and useful load is large, productivity ratio is high, is specially adapted to heat treatment heating little, medium-sized parts, and furnace temperature is even, high insulating effect, energy-conservation reaching more than 20%, and pollution-free, environmental benefit is good.This kind of chamber type electric resistance furnace, reasonable in design, the sealing part of fire door is provided with " protruding " type edge sealing that refractory fiber cotton is made, described body of heater is provided with the groove suitable with described edge sealing, thereby in the time that fire door is closed, sealing enter on body of heater for groove in, strengthen the sealing between fire door and body of heater, strengthen heat insulation and preservation effect, reduce heat loss.

Claims (6)

1. a chamber type electric resistance furnace, it is characterized in that: comprise grate (1), body of heater and heating element heater (2), described body of heater is fixed on grate (1), the inside of described body of heater is provided with burner hearth, described body of heater comprises furnace shell (3), heat-insulation layer (4) and the flame retardant coating (5) that ecto-entad sets gradually, and described flame retardant coating (5) adopts density to be less than 1100kg/m 3refractory brick, described heat-insulation layer (4) adopts aluminosilicate refractory fiber, between described furnace shell (3) and heat-insulation layer (4), be filled with frog stone flour, described heating element heater (2) adopts corrugated resistive band, described resistive band is evenly arranged on the flame retardant coating (5) of described body of heater, the both sides of described body of heater are equipped with fire door (6), and described fire door (6) includes the skin that the internal layer be made up of refractory fiber cotton and steel plate are made.
2. chamber type electric resistance furnace as claimed in claim 1, is characterized in that: described fire door (6) is laterally opened fire door (6).
3. chamber type electric resistance furnace as claimed in claim 2, is characterized in that: the sealing part of described fire door (6) is provided with " protruding " type edge sealing that refractory fiber cotton is made, and described body of heater is provided with the groove suitable with described edge sealing.
4. the chamber type electric resistance furnace as described in claim 1-3 any one, is characterized in that: described flame retardant coating (5) adopts density 700-1100kg/m 3refractory brick.
5. the chamber type electric resistance furnace as described in claim 1-3 any one, is characterized in that: described body of heater is provided with thermocouple (7), described burner hearth is inserted in the end of described thermocouple (7).
6. chamber type electric resistance furnace as claimed in claim 3, is characterized in that: the thermocouple that described thermocouple (7) is nickel chromium triangle-nisiloy.
CN201210467324.7A 2012-11-19 2012-11-19 Chamber type electric resistance furnace Active CN103822469B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210467324.7A CN103822469B (en) 2012-11-19 2012-11-19 Chamber type electric resistance furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210467324.7A CN103822469B (en) 2012-11-19 2012-11-19 Chamber type electric resistance furnace

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CN103822469A true CN103822469A (en) 2014-05-28
CN103822469B CN103822469B (en) 2016-06-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104567419A (en) * 2015-01-14 2015-04-29 江苏曙光石油钻采设备有限公司 Forging furnace door channeling prevention structure
CN109141020A (en) * 2018-09-04 2019-01-04 湖南金马冶金技术开发有限公司 A kind of resistance furnace

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2182971Y (en) * 1993-06-05 1994-11-16 淄博电阻厂 Box type electric resistance furnace
CN2916552Y (en) * 2005-11-18 2007-06-27 成都市大威工业炉制造有限公司 Cylindric case type resistance furnace
CN102564128A (en) * 2010-12-16 2012-07-11 施正香 Resistance furnace
CN203298592U (en) * 2012-11-19 2013-11-20 丹阳市江南工业炉有限公司 Box type electric resistance furnace

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2182971Y (en) * 1993-06-05 1994-11-16 淄博电阻厂 Box type electric resistance furnace
CN2916552Y (en) * 2005-11-18 2007-06-27 成都市大威工业炉制造有限公司 Cylindric case type resistance furnace
CN102564128A (en) * 2010-12-16 2012-07-11 施正香 Resistance furnace
CN203298592U (en) * 2012-11-19 2013-11-20 丹阳市江南工业炉有限公司 Box type electric resistance furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104567419A (en) * 2015-01-14 2015-04-29 江苏曙光石油钻采设备有限公司 Forging furnace door channeling prevention structure
CN109141020A (en) * 2018-09-04 2019-01-04 湖南金马冶金技术开发有限公司 A kind of resistance furnace

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Effective date of registration: 20160505

Address after: 212300 No. 1 Li Yao Road, Danyang Development Zone, Jiangsu, Zhenjiang, China

Applicant after: The new south of the River Lu Ye Science and Technology Ltd. in Jiangsu

Address before: 212300 ginkgo Road, Danyang Development Zone, Jiangsu, Zhenjiang 6, China

Applicant before: Danyang Jiangnan Industrial Furnace Co., Ltd.

C41 Transfer of patent application or patent right or utility model
CB03 Change of inventor or designer information

Inventor after: Zhu Weiguo

Inventor after: Zhang Zhiping

Inventor before: Ma Jianguo

Inventor before: Zhu Renfang

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