CN102798286A - High temperature sintering resistance furnace - Google Patents
High temperature sintering resistance furnace Download PDFInfo
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- CN102798286A CN102798286A CN2012102880365A CN201210288036A CN102798286A CN 102798286 A CN102798286 A CN 102798286A CN 2012102880365 A CN2012102880365 A CN 2012102880365A CN 201210288036 A CN201210288036 A CN 201210288036A CN 102798286 A CN102798286 A CN 102798286A
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Abstract
A high temperature sintering resistance furnace comprises a hearth with an insulation layer, wherein the lower part of the hearth is supported by a base, kiln furniture is arranged in the hearth, and an in-furnace hot air circulation system and a rotating device for bearing a workpiece are arranged in the hearth. The uniformity of temperatures at different parts of the high temperature sintering resistance furnace is well guaranteed, particularly when a large batch of workpieces are loaded, the thermotechnical effect deviation in the traditional furnace is eliminated through force convection and kiln furniture rotation, and meanwhile, the sintering atmosphere in the furnace is effectively regulated and improved andthe sintering quality of the workpiece is improved; and the temperature uniformity is excellent, the furnace volume can be sufficiently used, the yield of single furnace can be substantially improved, the energy consumption of single product is reduced, and the economic benefit and the practical value are very high.
Description
Technical field
The invention belongs to the thermal kiln furnace technical field, can be used for burning till of vitrified bonded grinding wheel, ceramic.
Background technology
Resistance furnace is the discontinuous running mode; Heating is used when supplying laboratory, industrial and mining enterprises, R&D institution to do heat treatment such as determination of elemental analysis and general small-sized steel part quenching, annealing, tempering; Also can make temperature heating usefulness in the sintering, fusion, analysis etc. of metal, pottery, maximum sintering temperature can reach 1200 degree Celsius in the stove.The electric furnace external form is rectangle, circle etc., and furnace shell adopts the welding of quality steel plate flanging to process, and the operating room is the burner hearth that refractory material is processed, and heating element heater is placed in one, and builds by laying bricks or stones with insulation material between burner hearth and the housing.
Fig. 1 is that widely used traditional emery wheel or ceramic high temperature burn till the chamber type electric resistance furnace structural representation, wherein, and electroheat pair 1: mainly be used for measuring and monitoring the temperature in the stove; Electrothermal resistance silk 2: heater block; Stove heat-insulation layer 3: rise heat insulation, the effect of insulation; Workpiece 4: the goods that need sintering; Kiln furnitures 5: place sintered article; Base for supporting 6: carry sintered article and stove plate; Base 7: carry the stove gross weight.Adopt both sides side wall and three heating of furnace bottom, lean on free convection, heat conduction and heat radiation that goods in the stove are heated,, fire door and back wall are increased heating element heater individually to the demanding goods of temperature homogeneity in the stove.According to the specification requirement that is heated workpiece, through thermocouple and temperature control instrument, the electric current and the voltage of heating power supply are controlled, reach and fire workpiece or workpiece is carried out corresponding heat treatment.
The mode of heating of prior art high temperature resistance furnace adopts free convection and radiation, and local (kiln furnitures and workpiece contact portion) is heat exchange pattern.At first, because the free convection meeting causes heat conducting energy loss, the thermograde in the stove can present the low distribution in high center, both sides; If the workpiece of placing in the stove varies in size, the density of perhaps placing is inhomogeneous, is obstructed in the free convection part that can produce heat, causes a part of workpiece heat on every side can not effectively be delivered on the workpiece of being fired; Secondly, heat radiation also can be because of the difference of workpiece apart from heat source position, and the workpiece that different parts is put produces different hot working effects, does not therefore reach the uniformity that workpiece burns till quality.At last; Burnt till under the situation that contains interim binding agent (organic compound), interim binding agent is burnt in the process of losing again, and local reducing atmosphere can cause interim binding agent fully not burnout; Produce gaseous volatilization during high temperature, product is produced harmful effects such as foaming.
Summary of the invention
To be solved by this invention is that common high temperature resistance furnace sintering process furnace chamber internal temperature is inhomogeneous, and workpiece is produced the problem that firing atmosphere can not be regulated effectively in different hot working effects, the stove, and a kind of high temperature sintering resistance furnace is provided.
Adopt following technical scheme in order to solve the problems of the technologies described above: a kind of high temperature sintering resistance furnace; Comprise the burner hearth that has heat-insulation layer; Lower furnace portion is provided with kiln furnitures by base support in the burner hearth, in burner hearth, be provided with hot air circulating system in the stove and carry the whirligig of workpiece.
Hot air circulating system comprises the gas channel of being made up of inboard wall of burner hearth and furnace lining in the described stove, and the heat resistance wire is housed in the gas channel; Furnace lining and both sides, burner hearth bottom intersection are provided with air inlet, and the furnace lining top is provided with air outlet; Heat-resisting circulating fan also is installed in the roof of the furnace lateral surface through the motor bracing frame, and the output shaft of heat-resisting circulating fan passes roof of the furnace and gets in the burner hearth and with fan blade and be connected, and fan blade is positioned at above the air outlet.
Furnace lining adopts sintered silicon carbon sheet material perhaps high temperature resistant cast steel, heat-resistance stainless steel sheet material.
Heat-resisting circulating fan adopts water or wind to force cooling.
The whirligig of described carrying workpiece comprises the electric rotating machine that is fixed on the burner hearth bottom outside through fixed support; The output shaft of electric rotating machine passes burner hearth bottom and furnace lining, and the output shaft upper end is connected with the rotation base for supporting; The rotation base for supporting is arranged in the furnace lining, and kiln furnitures are arranged on the rotation base for supporting.
The present invention has guaranteed that well high temperature burns till the uniformity of different parts temperature in the resistance furnace; After particularly loading large batch of workpiece; Through forced convertion and kiln furnitures rotation; Eliminated the hot working effect deviation in traditional kiln, the while is regulated effectively and improves the firing atmosphere in the stove, has improved the quality of burning till of workpiece; Temperature homogeneity is good, can make full use of furnace volume, increases substantially the output of single stove, has reduced the energy resource consumption of single products, has very high economic benefit and practical value.
Description of drawings
Fig. 1 is the structural representation that high temperature burns till chamber type electric resistance furnace in the background technology.
Fig. 2 is a structural representation of the present invention.
The specific embodiment
As shown in Figure 2, a kind of high temperature sintering resistance furnace comprises the burner hearth 3 that has heat-insulation layer, and burner hearth 3 bottoms are supported by base 7, in burner hearth 3, is provided with hot air circulating system in the stove and carries the whirligig of workpiece.
Hot air circulating system comprises the gas channel of being made up of inboard wall of burner hearth 15 and furnace lining 16 9 in the stove, and heat resistance wire 2 is housed in the gas channel 9; Furnace lining 16 is provided with air inlet 19 with both sides, intersection, burner hearth 3 bottom, and furnace lining 16 tops are provided with air outlet 8; Heat-resisting circulating fan 10 also is installed in the roof of the furnace lateral surface through motor bracing frame 11, and heat-resisting circulating fan 10 adopts water or wind to force cooling; The output shaft of heat-resisting circulating fan 10 passes in the roof of the furnace entering burner hearth and with fan blade 12 and is connected, and fan blade 12 is positioned at above the air outlet 8, and fan blade 12 makes the inner air flow that produces of burner hearth.
The whirligig that carries workpiece comprises the electric rotating machine 14 that is fixed on the burner hearth bottom outside through fixed support 13; The output shaft 18 of electric rotating machine 14 passes burner hearth bottom and furnace lining, and output shaft 18 upper ends are connected with rotation base for supporting 17; Rotation base for supporting 17 is arranged in the furnace lining 16, and kiln furnitures 5 are arranged on the rotation base for supporting 17, and workpiece 4 is placed in the kiln furnitures 5.
Furnace lining adopts sintered silicon carbon sheet material perhaps high temperature resistant cast steel, heat-resistance stainless steel sheet material.Fan blade adopts the fire-resistant steel material.Inboard wall of burner hearth adopts refractory brick, has resistance and high temperature resistance property, supports heater element, realizes heat insulation function simultaneously.The stove liner adopts carborundum or heat-resistance stainless steel plate, has good resistance and high temperature resistance property.Output shaft all adopts heat resisting steel, at high temperature can normally realize mechanical performance.
When heat-resisting circulating fan 10 drive fan blade 12 are rotated, burner hearth 3 interior high-temperature hot airs are forced to send into gas channel 9, the hot-air forced convertions in the burner hearth 3 are circulated, eliminated the temperature difference of the interior different parts of burner hearth of free convection generation.17 rotations of electric rotating machine 14 driven rotary base for supporting; The rotation base for supporting drives kiln furnitures 5 and workpiece 4 rotations; The inconsistent problem of hot working effect that the workpiece that eliminate to adopt fixing kiln furnitures to be burnt till heats in the different parts raying; The effect of stirring hot-air in the burner hearth has further been played in the rotation of kiln furnitures 5 and workpiece 4 simultaneously, can make the further homogenising of temperature in the burner hearth.
Claims (5)
1. a high temperature sintering resistance furnace comprises the burner hearth that has heat-insulation layer, and lower furnace portion is provided with kiln furnitures by base support in the burner hearth, it is characterized in that: in burner hearth, be provided with hot air circulating system in the stove and carry the whirligig of workpiece.
2. high temperature sintering resistance furnace according to claim 1 is characterized in that: hot air circulating system comprises the gas channel of being made up of inboard wall of burner hearth and furnace lining in the described stove, and the heat resistance wire is housed in the gas channel; Furnace lining and both sides, burner hearth bottom intersection are provided with air inlet, and the furnace lining top is provided with air outlet; Heat-resisting circulating fan also is installed in the roof of the furnace lateral surface through the motor bracing frame, and the output shaft of heat-resisting circulating fan passes roof of the furnace and gets in the burner hearth and with fan blade and be connected, and fan blade is positioned at above the air outlet.
3. high temperature sintering resistance furnace according to claim 2 is characterized in that: furnace lining adopts sintered silicon carbon sheet material perhaps high temperature resistant cast steel, heat-resistance stainless steel sheet material.
4. high temperature sintering resistance furnace according to claim 2 is characterized in that: heat-resisting circulating fan adopts water or wind to force cooling.
5. high temperature sintering resistance furnace according to claim 1 is characterized in that: the whirligig of described carrying workpiece comprises the electric rotating machine that is fixed on the burner hearth bottom outside through fixed support; The output shaft of electric rotating machine passes burner hearth bottom and furnace lining, and the output shaft upper end is connected with the rotation base for supporting; The rotation base for supporting is arranged in the furnace lining, and kiln furnitures are arranged on the rotation base for supporting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102880365A CN102798286A (en) | 2012-08-14 | 2012-08-14 | High temperature sintering resistance furnace |
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| CN2012102880365A CN102798286A (en) | 2012-08-14 | 2012-08-14 | High temperature sintering resistance furnace |
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| CN102798286A true CN102798286A (en) | 2012-11-28 |
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| CN2012102880365A Pending CN102798286A (en) | 2012-08-14 | 2012-08-14 | High temperature sintering resistance furnace |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501398A (en) * | 2014-12-26 | 2015-04-08 | 陈国� | Pressurized air heating high-temperature furnace for pond |
| CN105318713A (en) * | 2014-08-01 | 2016-02-10 | 天津市维之丰科技有限公司 | Rotary porcelain firing vacuum furnace |
| CN105884182A (en) * | 2016-06-25 | 2016-08-24 | 四川省洪雅县中保光学元件有限公司 | Intelligent temperature control system for annealing furnace |
| CN106322994A (en) * | 2015-06-18 | 2017-01-11 | 蒋满珍 | Curing oven |
| CN106442622A (en) * | 2015-08-04 | 2017-02-22 | 南京理工大学 | Rotary type slow-baking safety test device |
| CN106885469A (en) * | 2017-03-03 | 2017-06-23 | 杭州志在材料科技有限公司 | A kind of ceramic kiln with cooling control structure |
| CN107726866A (en) * | 2017-09-01 | 2018-02-23 | 河南中汇新材科技有限公司 | High-purity silicon nitride reacting furnace |
| CN108129011A (en) * | 2017-12-08 | 2018-06-08 | 湖北新华光信息材料有限公司 | A kind of large scale optical glass fine annealing stove |
| CN108775819A (en) * | 2018-06-06 | 2018-11-09 | 无锡大塘复合材料有限公司 | A kind of head cover containing structure of sintering furnace |
| CN108863033A (en) * | 2018-06-25 | 2018-11-23 | 本溪鹤腾科技发展有限公司 | A kind of box-annealing furnace |
| CN110017913A (en) * | 2018-01-09 | 2019-07-16 | 北京康斯特仪表科技股份有限公司 | Low temperature furnace body and low temperature stem body temperature checker including the low temperature furnace body |
| CN112201426A (en) * | 2020-09-24 | 2021-01-08 | 郑州竹蜻蜓电子科技有限公司 | Sintering device for producing PTC thermistor |
| CN113357912A (en) * | 2021-06-16 | 2021-09-07 | 任和炳 | Ceramic vacuum sintering equipment |
| CN113817908A (en) * | 2021-08-13 | 2021-12-21 | 苏州新长光热能科技有限公司 | Annealing furnace |
| CN113916716A (en) * | 2021-11-26 | 2022-01-11 | 河北中瓷电子科技股份有限公司 | Method for measuring atmosphere consistency in atmosphere sintering furnace |
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| JPH10146650A (en) * | 1996-11-14 | 1998-06-02 | Kenzo Takahashi | Aluminum melting furnace with stirring device, molten aluminum stirring device and method for stirring molten aluminum |
| CN2343177Y (en) * | 1998-09-17 | 1999-10-13 | 张昌辉 | Rotary counter-flow type preoxidation furnace |
| CN201227868Y (en) * | 2008-05-12 | 2009-04-29 | 张斯韦 | Polytetrafluorethylene sintering furnace |
| CN201567295U (en) * | 2009-11-17 | 2010-09-01 | 合肥日新高温技术有限公司 | Heated-air circulation degreasing furnace |
| CN202350534U (en) * | 2011-11-03 | 2012-07-25 | 湖北新华光信息材料有限公司 | Heating element and testing smelting furnace adopting same |
-
2012
- 2012-08-14 CN CN2012102880365A patent/CN102798286A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10146650A (en) * | 1996-11-14 | 1998-06-02 | Kenzo Takahashi | Aluminum melting furnace with stirring device, molten aluminum stirring device and method for stirring molten aluminum |
| CN2343177Y (en) * | 1998-09-17 | 1999-10-13 | 张昌辉 | Rotary counter-flow type preoxidation furnace |
| CN201227868Y (en) * | 2008-05-12 | 2009-04-29 | 张斯韦 | Polytetrafluorethylene sintering furnace |
| CN201567295U (en) * | 2009-11-17 | 2010-09-01 | 合肥日新高温技术有限公司 | Heated-air circulation degreasing furnace |
| CN202350534U (en) * | 2011-11-03 | 2012-07-25 | 湖北新华光信息材料有限公司 | Heating element and testing smelting furnace adopting same |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318713B (en) * | 2014-08-01 | 2017-11-07 | 天津市维之丰科技有限公司 | A kind of rotary porcelain fires vacuum drying oven |
| CN105318713A (en) * | 2014-08-01 | 2016-02-10 | 天津市维之丰科技有限公司 | Rotary porcelain firing vacuum furnace |
| CN104501398A (en) * | 2014-12-26 | 2015-04-08 | 陈国� | Pressurized air heating high-temperature furnace for pond |
| CN106322994A (en) * | 2015-06-18 | 2017-01-11 | 蒋满珍 | Curing oven |
| CN106442622B (en) * | 2015-08-04 | 2020-06-19 | 南京理工大学 | Rotary slow-baking safety test device |
| CN106442622A (en) * | 2015-08-04 | 2017-02-22 | 南京理工大学 | Rotary type slow-baking safety test device |
| CN105884182B (en) * | 2016-06-25 | 2018-06-01 | 四川省洪雅县中保光学元件有限公司 | A kind of annealing furnace intelligent temperature control system |
| CN105884182A (en) * | 2016-06-25 | 2016-08-24 | 四川省洪雅县中保光学元件有限公司 | Intelligent temperature control system for annealing furnace |
| CN106885469A (en) * | 2017-03-03 | 2017-06-23 | 杭州志在材料科技有限公司 | A kind of ceramic kiln with cooling control structure |
| CN107726866A (en) * | 2017-09-01 | 2018-02-23 | 河南中汇新材科技有限公司 | High-purity silicon nitride reacting furnace |
| CN108129011A (en) * | 2017-12-08 | 2018-06-08 | 湖北新华光信息材料有限公司 | A kind of large scale optical glass fine annealing stove |
| CN108129011B (en) * | 2017-12-08 | 2020-12-29 | 湖北新华光信息材料有限公司 | Precision annealing furnace for large-size optical glass |
| CN110017913A (en) * | 2018-01-09 | 2019-07-16 | 北京康斯特仪表科技股份有限公司 | Low temperature furnace body and low temperature stem body temperature checker including the low temperature furnace body |
| CN108775819A (en) * | 2018-06-06 | 2018-11-09 | 无锡大塘复合材料有限公司 | A kind of head cover containing structure of sintering furnace |
| CN108863033A (en) * | 2018-06-25 | 2018-11-23 | 本溪鹤腾科技发展有限公司 | A kind of box-annealing furnace |
| CN112201426A (en) * | 2020-09-24 | 2021-01-08 | 郑州竹蜻蜓电子科技有限公司 | Sintering device for producing PTC thermistor |
| CN113357912A (en) * | 2021-06-16 | 2021-09-07 | 任和炳 | Ceramic vacuum sintering equipment |
| CN113817908A (en) * | 2021-08-13 | 2021-12-21 | 苏州新长光热能科技有限公司 | Annealing furnace |
| CN113916716A (en) * | 2021-11-26 | 2022-01-11 | 河北中瓷电子科技股份有限公司 | Method for measuring atmosphere consistency in atmosphere sintering furnace |
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Address after: 450001 Zhengzhou high tech Zone, Henan, China Street, No. 121 Applicant after: Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd. Applicant after: Zhengzhou Sanmo Superhard Material Co., Ltd. Address before: 450001 Zhengzhou high tech Zone, Henan, China Street, No. 121 Applicant before: Zhengzhou Research Institute for Abrasive & Grinding Co., Ltd. Applicant before: Zhengzhou Sanmo Superhard Material Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: ZHENGZHOU ABRASIVE MATERIALS, ABRASIVE TOOLS, GRINDING INST. (CN) NO.1 HUASHAN R TO: ZHENGZHOU RESEARCH INSTITUTE FOR ABRASIVES + GRINDING CO., LTD. |
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Application publication date: 20121128 |