WO2012116502A1 - Energy-saving and environmental conservation composite high temperature box electric furnace - Google Patents

Energy-saving and environmental conservation composite high temperature box electric furnace Download PDF

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Publication number
WO2012116502A1
WO2012116502A1 PCT/CN2011/071730 CN2011071730W WO2012116502A1 WO 2012116502 A1 WO2012116502 A1 WO 2012116502A1 CN 2011071730 W CN2011071730 W CN 2011071730W WO 2012116502 A1 WO2012116502 A1 WO 2012116502A1
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Prior art keywords
refractory
furnace
type electric
box type
temperature box
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PCT/CN2011/071730
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French (fr)
Chinese (zh)
Inventor
郭露村
耿龙兴
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南京维能窑炉科技有限公司
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Publication of WO2012116502A1 publication Critical patent/WO2012116502A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • F27B17/0016—Chamber type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/0003—Linings or walls
    • F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics

Definitions

  • the present invention relates to a high-temperature box type electric furnace which is highly efficient and energy-saving, and is suitable for firing of inorganic non-metallic materials such as ceramics and glass, and high-temperature heat treatment of metal materials. Book
  • High-temperature box-type electric furnaces for industrial and scientific research generally refer to batch electric furnaces with working temperatures of 1000-2000 ° C. They are widely used in ceramics, glass, powder metallurgy, chemical industry, machinery, energy and many other fields for important experiments and production. device.
  • the high-temperature box type electric furnace heats the workpiece by the heat generated by the current passing through the conductor, and is mainly composed of a furnace body, a heating element, and a temperature control system.
  • the furnace body is generally composed of a furnace, a heat insulation layer and a metal casing. Composition.
  • the existing high temperature box type electric furnace can be divided into two categories according to the structure and material of the furnace body.
  • One type is an electric furnace made of ordinary high-temperature refractory material, which is characterized in that the furnace is made of heavy high-temperature refractory material, such as high-aluminum refractory material, corundum or corundum mullite refractory material, and alumina or zirconia hollow.
  • Ball refractory, etc.; most of its insulation layer uses lightweight refractory materials, such as porous high-alumina lightweight bricks or lightweight clay bricks.
  • Another type of high temperature box type electric furnace is a full refractory fiber furnace which has appeared in recent years, and its furnace body is entirely made of refractory fiber material.
  • the structure of such an electric furnace is usually made of a high-temperature fire-resistant high-temperature flame-resistant fiber material, and a refractory fiber material having a relatively low refractoriness is used as a heat insulating layer.
  • This full refractory fiber furnace has good energy-saving effect and good temperature-lowering handling due to its good heat insulation effect and low heat storage.
  • the full refractory fiber furnace also has the following outstanding disadvantages: First, the dust of the refractory fiber is inhaled to the respiratory system and may cause cancer.
  • the refractory fiber When it is used for a long time at a high temperature, it gradually loses its elasticity, and then breaks and pulverizes to produce fiber dust. Secondly, the refractory fiber is still far from the traditional non-fibrous refractory material.
  • the maximum temperature is generally limited to 1500 °C, and the ultra-high temperature refractory fiber (such as high purity alumina and zirconia) is extremely expensive. Fiber) generally does not exceed 1700 ° C, unable to meet the extensive needs of production and experimentation.
  • the present invention provides a high-efficiency energy-saving and environmentally-friendly composite high-temperature box type electric furnace, the technical feature of which is to adopt a non-fiber refractory material.
  • Thin fireplace and refractory insulation The composite furnace structure maximizes the advantages of the two materials, which can greatly reduce energy consumption, achieve rapid temperature rise and fall, avoid refractory fiber damage to the human body, and solve the problem of low temperature and easy damage of the whole fiber electric furnace. , easy to ablate and other issues.
  • the key to the invention is to design the optimum thickness of the non-fibrous refractory thin fireplace, that is, to minimize the thickness of the non-fibrous refractory furnace wall under conditions that ensure the performance and preparation process.
  • the utility model relates to a high-efficiency energy-saving and environment-friendly composite high-temperature box type electric furnace, which is composed of a refractory furnace and a heating body and a refractory fiber insulation layer.
  • the refractory furnace is a non-fiber refractory thin fireplace ⁇ , refractory fiber insulation layer
  • the refractory fiber material is used; the ratio of the thickness of the non-fibrous refractory thin fireplace to the thickness of the refractory fiber insulation layer is 1: 4 ⁇ 1:20.
  • a heating element is arranged in the furnace of the refractory material; the heating element is a heating wire, a carbon rod, a silicon carbon rod or a silicon molybdenum rod.
  • the heating element is a U-shaped or rod-shaped electric heating body or a metal heating wire.
  • the composite high temperature box type electric furnace further comprises a temperature measuring thermocouple, and the temperature measuring thermocouple is arranged in the refractory furnace.
  • the material of the refractory furnace is alumina, zirconia hollow sphere refractory or corundum-mullite refractory material; the refractory fiber insulation layer is made of inorganic refractory fiber material.
  • the refractory furnace is an assembled structure or a monolithic structure.
  • the refractory hearth is of an assembled structure, and the parts of the refractory hearth are assembled by a high temperature adhesive.
  • the thickness of the non-fibrous refractory thin fireplace and the thickness of the refractory fiber insulation layer The ratio is 1: 8 ⁇ 1: 12 ⁇
  • the outer wall of the refractory furnace has an isolation rib.
  • the composite high-temperature box type electric furnace further includes a furnace door, and the refractory furnace is provided with a furnace door frame, and the furnace door is disposed in the furnace door frame.
  • the high-temperature box type electric furnace of the invention consumes only 20% of the energy of the ordinary high-temperature box type electric furnace, and reduces the energy consumption by up to 80%.
  • the invention solves the problem that the refractory fiber furnace can not be applied to the high-temperature, pulverized and harmful fiber dust.
  • the invention has no refractory fiber exposed on the working surface of the furnace body, and overcomes the dust of the refractory fiber being inhaled by the person. The problem of human harm.
  • the maximum operating temperature of the high-temperature box type electric furnace of the invention can reach 1900 ° C, which is 200 ° C-300 ° C higher than the maximum working temperature of the general refractory fiber electric furnace;
  • the invention adopts a thin fireplace raft, which has small heat capacity, and solves the problem that the heat storage loss of the thick fireplace and the electric furnace is high, resulting in large energy consumption of the equipment and slow temperature rise and fall.
  • the non-fiber refractory furnace of the invention can simultaneously meet the refractoriness and Strength requirement
  • the various parts of the refractory furnace of the invention are assembled by inorganic high-temperature adhesive, which can reduce the manufacturing difficulty of the furnace, greatly shorten the production cycle, improve the production efficiency, the product qualification rate and the cost.
  • the outer wall of the refractory furnace of the invention is provided with a plurality of reinforcing ribs, which can be further reinforced to support the furnace, reduce material, and create a gap between the ribs, and the cavity generated by the refractory furnace can be used in the refractory furnace and the refractory fiber insulation layer.
  • An air insulation layer is created to enhance the insulation effect.
  • FIG. 1 is a schematic view of the overall structure of the present invention.
  • FIG. 2 is a schematic exploded view of the three-dimensional structure of the present invention.
  • 1 is a refractory furnace
  • 2 is a refractory fiber insulation layer
  • 3 is a heating element
  • 4 is a furnace door
  • 5 is an isolation rib
  • 6 is a furnace door frame.
  • An energy-saving high-temperature box type electric furnace comprising a refractory furnace 1 and a refractory fiber insulation layer 2, the refractory furnace 1 being placed in the refractory fiber insulation layer 2.
  • the refractory furnace 1 is provided with a heating element 3; the heating element 3 is a heating wire, a carbon rod, a silicon carbon rod or a silicon molybdenum rod.
  • the heating element 3 is a U-shaped or rod-shaped electric heating body or a spiral heating wire.
  • the energy-saving high-temperature box type electric furnace also includes a temperature measuring thermocouple, and the temperature measuring thermocouple is disposed in the refractory material furnace 1 .
  • the material of the refractory furnace 1 is a non-fiber refractory material.
  • the material of the refractory furnace (1) may be alumina, zirconia hollow sphere refractory or corundum-mullite refractory;
  • the refractory fiber insulation layer 2 is made of refractory fiber.
  • the material of the refractory fiber insulation layer 2 may be alumina, aluminum silicate or mullite refractory fiber.
  • the refractory furnace 1 is an assembled structure or a monolithic structure.
  • the refractory hearth 1 is an assembled structure in which parts of the refractory hearth 1 are assembled by an inorganic high temperature binder.
  • the ratio of the wall thickness of the fiber refractory furnace 1 to the thickness of the refractory fiber insulation layer is between 1:4 and 1:20, preferably 1:8 to 1:12. Can also be 1: 6 or 1: 10 or 1 : 16.
  • the refractory hearth 1 is provided with an insulating rib 5 on the outer wall.
  • the energy-saving high-temperature box type electric furnace further includes a furnace door 4, and the refractory hearth 1 is provided with a furnace door frame 6, and the furnace door 4 is disposed in the furnace door frame 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Furnace Details (AREA)

Abstract

The present invention discloses an energy-saving and environmental conservation composite high temperature box electric furnace, which comprises a refractory furnace cavity and a refractory fiber thermal insulating layer. Said refractory furnace cavity is set in the refractory fiber thermal insulating layer. A heating element is set in said refractory furnace cavity, and said heating element is heating wire, carbon rod, silicon carbon rod or silicon molybdenum rod. The present invention not only resolves the problem that the energy consumption is high and the ramp rate is slow in the thick wall electric furnace, but also resolves the problem that the refractory fiber furnace cavity can not be used at high temperature and harmful dust fibers are generated after pulverization.

Description

一种节能环保的复合型高温箱式电炉  Energy-saving and environment-friendly composite high-temperature box type electric furnace
技术领域 本发明涉及一种高效节说能、绿色环保的高温箱式电炉， 适用于陶 瓷、 玻璃等无机非金属材料的烧成， 以及金属材料的高温热处理等。 书 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-temperature box type electric furnace which is highly efficient and energy-saving, and is suitable for firing of inorganic non-metallic materials such as ceramics and glass, and high-temperature heat treatment of metal materials. Book
背景技术 工业及科研用高温箱式电炉一般是指工作温度为 1000~2000°C 的间歇式电炉， 是广泛用于陶瓷、 玻璃、 粉末冶金、 化工、 机械、 能 源等众多领域的重要实验和生产设备。高温箱式电炉是以电流通过导 体所产生的热量为热源来加热工件， 主要由炉体、 发热体、测控温系 统几大部分组成， 其炉体一般则是由炉膛、 隔热层和金属外壳构成。 BACKGROUND OF THE INVENTION High-temperature box-type electric furnaces for industrial and scientific research generally refer to batch electric furnaces with working temperatures of 1000-2000 ° C. They are widely used in ceramics, glass, powder metallurgy, chemical industry, machinery, energy and many other fields for important experiments and production. device. The high-temperature box type electric furnace heats the workpiece by the heat generated by the current passing through the conductor, and is mainly composed of a furnace body, a heating element, and a temperature control system. The furnace body is generally composed of a furnace, a heat insulation layer and a metal casing. Composition.
现有的高温箱式电炉按炉体结构和材料可分为两大类。一类是由 普通高温耐火材料制成的电炉，其特点是炉膛由重质的高温耐火材料 制成， 如高铝耐火材料、 刚玉或刚玉 莫来石质耐火材料， 以及氧化 铝或氧化锆空心球耐火材料等； 其隔热层大多采用轻质耐火材料， 如 多孔的高铝轻质砖或轻质粘土砖等。此类普通高温箱式电炉的优点是 结构简单、 使用温度高（最高可达 ~1800°C )、 制造成本较低， 但其最 大的缺点在于：材料热容大且炉体较厚，故蓄热量很高；导热系数高， 因而隔热性能不够理想。 由于蓄热及散热的损失， 导致烧成过程的能 耗很高， 并且升降温速度缓慢， 无法满足实验或生产对快速升降温的 工艺要求。 The existing high temperature box type electric furnace can be divided into two categories according to the structure and material of the furnace body. One type is an electric furnace made of ordinary high-temperature refractory material, which is characterized in that the furnace is made of heavy high-temperature refractory material, such as high-aluminum refractory material, corundum or corundum mullite refractory material, and alumina or zirconia hollow. Ball refractory, etc.; most of its insulation layer uses lightweight refractory materials, such as porous high-alumina lightweight bricks or lightweight clay bricks. The advantages of such a common high-temperature box type electric furnace are simple structure, high use temperature (up to ~1800 ° C), and low manufacturing cost, but the biggest disadvantage is that the material has a large heat capacity and the furnace body is thick, so The heat is high; the thermal conductivity is high, so the thermal insulation performance is not ideal. Due to the loss of heat storage and heat dissipation, the energy of the firing process The consumption is high, and the temperature rise and fall is slow, which cannot meet the process requirements of the experiment or production for rapid temperature rise and fall.
另一类高温箱式电炉是近年来出现的全耐火纤维炉，其炉体全部 由耐火纤维材料制成的。这种电炉的结构通常是由耐火度高的高温耐 火纤维材料制成整体式炉膛，由耐火度相对较低的耐火纤维材料作为 隔热层。这种全耐火纤维炉由于隔热效果好、 蓄热量小， 因而具有很 好的节能效果和良好的升降温操控性。但全耐火纤维炉也存在以下一 些突出的缺点： 首先， 耐火纤维的粉尘被人吸入后会对呼吸系统产生 危害， 并有可能致癌。 当其在高温下长期使用后会逐渐失去弹性， 从 而断裂粉化， 产生纤维粉尘。其次， 目前耐火纤维的耐火度较传统的 非纤维类耐火材料仍然有很大差距， 其最高使用温度一般限于 1500 °C以下， 造价极其昂贵的超高温耐火纤维（如高纯氧化铝、氧化锆纤 维） 一般也不超过 1700°C， 无法满足生产及实验的广泛需求。 此外， 全耐火纤维高温箱式电炉的另一缺点是炉膛强度很低，容易在使用中 被匣钵、坩埚和火钳等刮伤和磨损； 其纤维质的炉膛较一般重质耐火 材料的炉膛更容易吸附被烧物挥发出的物质， 导致高温融蚀， 其寿命 因此会大幅缩短。 发明内容  Another type of high temperature box type electric furnace is a full refractory fiber furnace which has appeared in recent years, and its furnace body is entirely made of refractory fiber material. The structure of such an electric furnace is usually made of a high-temperature fire-resistant high-temperature flame-resistant fiber material, and a refractory fiber material having a relatively low refractoriness is used as a heat insulating layer. This full refractory fiber furnace has good energy-saving effect and good temperature-lowering handling due to its good heat insulation effect and low heat storage. However, the full refractory fiber furnace also has the following outstanding disadvantages: First, the dust of the refractory fiber is inhaled to the respiratory system and may cause cancer. When it is used for a long time at a high temperature, it gradually loses its elasticity, and then breaks and pulverizes to produce fiber dust. Secondly, the refractory fiber is still far from the traditional non-fibrous refractory material. The maximum temperature is generally limited to 1500 °C, and the ultra-high temperature refractory fiber (such as high purity alumina and zirconia) is extremely expensive. Fiber) generally does not exceed 1700 ° C, unable to meet the extensive needs of production and experimentation. In addition, another disadvantage of the full refractory fiber high-temperature box type electric furnace is that the furnace strength is very low, and it is easy to be scratched and worn by smashing, smashing and squeezing in use; the fibrous hearth is more than the furnace of the general heavy refractory material. It is easy to adsorb the substance volatilized by the burnt material, causing high temperature ablation, and its life is thus greatly shortened. Summary of the invention
为解决现有的普通高温箱式电炉和全耐火纤维高温箱式电炉的 上述缺点和问题，本发明提供了一种高效节能环保的复合型高温箱式 电炉，其技术特征是采用非纤维耐火材料薄壁炉膛和耐火纤维隔热层 的复合炉体结构， 最大限度利用两种材料的各自优势， 达到既可大幅 降低能耗、 实现快速升降温， 又可避免耐火纤维对人体的伤害， 并解 决全纤维电炉使用温度低、 易损伤、 易融蚀等问题。 该发明的关键在 于设计最优的非纤维耐火材料薄壁炉膛的厚度，即在保证使用性能和 制备工艺的条件下， 最大限度的降低非纤维耐火材料炉膛壁的厚度。 In order to solve the above-mentioned shortcomings and problems of the conventional high-temperature box type electric furnace and the full refractory fiber high-temperature box type electric furnace, the present invention provides a high-efficiency energy-saving and environmentally-friendly composite high-temperature box type electric furnace, the technical feature of which is to adopt a non-fiber refractory material. Thin fireplace and refractory insulation The composite furnace structure maximizes the advantages of the two materials, which can greatly reduce energy consumption, achieve rapid temperature rise and fall, avoid refractory fiber damage to the human body, and solve the problem of low temperature and easy damage of the whole fiber electric furnace. , easy to ablate and other issues. The key to the invention is to design the optimum thickness of the non-fibrous refractory thin fireplace, that is, to minimize the thickness of the non-fibrous refractory furnace wall under conditions that ensure the performance and preparation process.
本发明的技术方案是：  The technical solution of the present invention is:
一种高效节能环保的复合型高温箱式电炉，它由耐火材料炉膛及 其发热体状和耐火纤维隔热层组成，所述耐火材料炉膛为非纤维耐火 材料薄壁炉膛， 耐火纤维隔热层采用耐火纤维材料； 非纤维耐火材料 薄壁炉膛的厚度与耐火纤维隔热层的厚度比值在 1 : 4〜1： 20。  The utility model relates to a high-efficiency energy-saving and environment-friendly composite high-temperature box type electric furnace, which is composed of a refractory furnace and a heating body and a refractory fiber insulation layer. The refractory furnace is a non-fiber refractory thin fireplace 膛, refractory fiber insulation layer The refractory fiber material is used; the ratio of the thickness of the non-fibrous refractory thin fireplace to the thickness of the refractory fiber insulation layer is 1: 4~1:20.
状状所述耐火材料炉膛内设有发热体； 所述发热体为电热丝、 碳棒、 硅碳棒或硅钼棒。 A heating element is arranged in the furnace of the refractory material; the heating element is a heating wire, a carbon rod, a silicon carbon rod or a silicon molybdenum rod.
所述发热体为 U型或棒状电加热体或金属电热丝。  The heating element is a U-shaped or rod-shaped electric heating body or a metal heating wire.
所述复合型高温箱式电炉还包括测温热电偶，测温热电偶设置在 耐火材料炉膛内。  The composite high temperature box type electric furnace further comprises a temperature measuring thermocouple, and the temperature measuring thermocouple is arranged in the refractory furnace.
所述耐火材料炉膛的材质为氧化铝、氧化锆空心球耐火材质或刚 玉-莫来石质耐火材质； 所述耐火纤维隔热层的材质为无机耐火纤维 材质。  The material of the refractory furnace is alumina, zirconia hollow sphere refractory or corundum-mullite refractory material; the refractory fiber insulation layer is made of inorganic refractory fiber material.
所述耐火材料炉膛为组装式结构或整体式结构。  The refractory furnace is an assembled structure or a monolithic structure.
所述耐火材料炉膛为组装式结构，耐火材料炉膛各部分间通过高 温粘结剂进行组装。  The refractory hearth is of an assembled structure, and the parts of the refractory hearth are assembled by a high temperature adhesive.
所述非纤维耐火材料薄壁炉膛的厚度与耐火纤维隔热层的厚度 比值在 1 : 8〜1 : 12ο The thickness of the non-fibrous refractory thin fireplace and the thickness of the refractory fiber insulation layer The ratio is 1: 8~1: 12ο
所述耐火材料炉膛外壁设有隔离加强筋。  The outer wall of the refractory furnace has an isolation rib.
所述复合型高温箱式电炉还包括炉门，耐火材料炉膛设有炉门框 架， 炉门设置在炉门框架内。  The composite high-temperature box type electric furnace further includes a furnace door, and the refractory furnace is provided with a furnace door frame, and the furnace door is disposed in the furnace door frame.
本发明的节能高温箱式电炉的有益效果是：  The beneficial effects of the energy-saving high-temperature box type electric furnace of the invention are:
1、本发明的高温箱式电炉的能耗仅为普通高温箱式电炉的 20%， 减少能耗高达 80%。  1. The high-temperature box type electric furnace of the invention consumes only 20% of the energy of the ordinary high-temperature box type electric furnace, and reduces the energy consumption by up to 80%.
2、 本发明解决了耐火纤维炉膛不能应用于高温、 粉化后产生有 害纤维粉尘的问题， 本发明在炉体的工作面上没有耐火纤维裸露， 克 服了耐火纤维的粉尘被人吸入后会对人产生危害的问题。  2. The invention solves the problem that the refractory fiber furnace can not be applied to the high-temperature, pulverized and harmful fiber dust. The invention has no refractory fiber exposed on the working surface of the furnace body, and overcomes the dust of the refractory fiber being inhaled by the person. The problem of human harm.
3、 本发明的高温箱式电炉的最高工作温度可达到 1900°C， 比一 般全耐火纤维电炉的最高工作温度高 200°C-300°C ;  3. The maximum operating temperature of the high-temperature box type electric furnace of the invention can reach 1900 ° C, which is 200 ° C-300 ° C higher than the maximum working temperature of the general refractory fiber electric furnace;
4、 本发明采用薄壁炉膛， 热容小， 解决了厚壁炉膛电炉蓄热损 耗高导致设备能耗大、升降温速度慢的问题， 本发明的非纤维耐火材 料炉膛可同时满足耐火度和强度要求；  4. The invention adopts a thin fireplace raft, which has small heat capacity, and solves the problem that the heat storage loss of the thick fireplace and the electric furnace is high, resulting in large energy consumption of the equipment and slow temperature rise and fall. The non-fiber refractory furnace of the invention can simultaneously meet the refractoriness and Strength requirement
5、 本发明的耐火材料炉膛各部分采用无机高温粘结剂组装， 可 降低炉膛的制造难度， 大幅缩短生产周期， 提高生产效率、产品合格 率， 降低成本。  5. The various parts of the refractory furnace of the invention are assembled by inorganic high-temperature adhesive, which can reduce the manufacturing difficulty of the furnace, greatly shorten the production cycle, improve the production efficiency, the product qualification rate and the cost.
6、 本发明的耐火材料炉膛外壁设置多条加强筋， 可进一歩加固 支撑炉膛， 减省材料， 加强筋产生间隙， 利用其产生的空腔， 可在耐 火材料炉膛和耐火纤维隔热层之间产生空气隔热层， 加强隔热效果。  6. The outer wall of the refractory furnace of the invention is provided with a plurality of reinforcing ribs, which can be further reinforced to support the furnace, reduce material, and create a gap between the ribs, and the cavity generated by the refractory furnace can be used in the refractory furnace and the refractory fiber insulation layer. An air insulation layer is created to enhance the insulation effect.
附图说明 图 1为本发明的整体结构示意图。 DRAWINGS Figure 1 is a schematic view of the overall structure of the present invention.
图 2为本发明的立体结构分解示意图。  2 is a schematic exploded view of the three-dimensional structure of the present invention.
图中， 1为耐火材料炉膛， 2为耐火纤维隔热层， 3为发热体， 4 为炉门， 5为隔离加强筋， 6为炉门框架。  In the figure, 1 is a refractory furnace, 2 is a refractory fiber insulation layer, 3 is a heating element, 4 is a furnace door, 5 is an isolation rib, and 6 is a furnace door frame.
具体实 式 Specific form
下面结合附图对本发明作进一歩描述：  The present invention will be further described below with reference to the accompanying drawings:
一种节能高温箱式电炉，它包括为耐火材料炉膛 1和耐火纤维隔 热层 2， 所述耐火材料炉膛 1置于耐火纤维隔热层 2内。  An energy-saving high-temperature box type electric furnace comprising a refractory furnace 1 and a refractory fiber insulation layer 2, the refractory furnace 1 being placed in the refractory fiber insulation layer 2.
耐火材料炉膛 1内设有发热体 3;所述发热体 3为电热丝、碳棒、 硅碳棒或硅钼棒。  The refractory furnace 1 is provided with a heating element 3; the heating element 3 is a heating wire, a carbon rod, a silicon carbon rod or a silicon molybdenum rod.
发热体 3为 U型或棒状电加热体或螺旋形电热丝。  The heating element 3 is a U-shaped or rod-shaped electric heating body or a spiral heating wire.
节能高温箱式电炉还包括测温热电偶，测温热电偶设置在耐火材 料炉膛 1内。  The energy-saving high-temperature box type electric furnace also includes a temperature measuring thermocouple, and the temperature measuring thermocouple is disposed in the refractory material furnace 1 .
耐火材料炉膛 1的材质为非纤维耐火材料。 耐火材料炉膛 （1 ) 的材质可以为氧化铝、氧化锆空心球耐火材质或刚玉一莫来石质耐火 材料； 所述耐火纤维隔热层 2的材质为耐火纤维。 耐火纤维隔热层 2 的材质可以为氧化铝、 硅酸铝、 莫来石耐火纤维。  The material of the refractory furnace 1 is a non-fiber refractory material. The material of the refractory furnace (1) may be alumina, zirconia hollow sphere refractory or corundum-mullite refractory; the refractory fiber insulation layer 2 is made of refractory fiber. The material of the refractory fiber insulation layer 2 may be alumina, aluminum silicate or mullite refractory fiber.
耐火材料炉膛 1为组装式结构或整体式结构。  The refractory furnace 1 is an assembled structure or a monolithic structure.
耐火材料炉膛 1为组装式结构，耐火材料炉膛 1各部分间通过无 机高温粘结剂进行组装。  The refractory hearth 1 is an assembled structure in which parts of the refractory hearth 1 are assembled by an inorganic high temperature binder.
纤维耐火材料炉膛 1的壁厚与耐火纤维隔热层厚度比值在 1 : 4〜1： 20之间， 优选为 1 : 8〜1： 12。 也可以为 1 : 6或者 1 : 10或 者 1 : 16。 The ratio of the wall thickness of the fiber refractory furnace 1 to the thickness of the refractory fiber insulation layer is between 1:4 and 1:20, preferably 1:8 to 1:12. Can also be 1: 6 or 1: 10 or 1 : 16.
耐火材料炉膛 1外壁设有隔离加强筋 5。  The refractory hearth 1 is provided with an insulating rib 5 on the outer wall.
节能高温箱式电炉还包括炉门 4， 耐火材料炉膛 1设有炉门框架 6， 炉门 4设置在炉门框架 6内。  The energy-saving high-temperature box type electric furnace further includes a furnace door 4, and the refractory hearth 1 is provided with a furnace door frame 6, and the furnace door 4 is disposed in the furnace door frame 6.
上面所述的实施例仅仅是对本发明的优选实施方式进行描述，并 非对本发明的构思和范围进行限定， 在不脱离本发明设计构思前提 下，本领域中普通工程技术人员对本发明的技术方案做出的各种变型 和改进， 均应落入本发明的保护范围， 本发明请求保护的技术内容已 经全部记载在权利要求书中。  The embodiments described above are only intended to describe the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. The technical solutions of the present invention are made by those skilled in the art without departing from the inventive concept. The various modifications and improvements of the present invention are intended to be included within the scope of the present invention.

Claims

1.一种高效节能环保的复合型高温箱式电炉， 它由耐火材料炉膛 （1 )及其发热 体 （3 ) 和耐火纤维隔热层 （2) 组成， 其特征在于所述耐火材料炉膛 （1 ) 为非 纤维耐火材料薄壁炉膛， 耐火纤维隔热层 （2) 采用耐火纤维材料； 非纤维耐火 材料薄壁炉膛的厚度与耐火纤维隔热层 （2) 的厚度比值在 1 : 4〜1： 20。 1. A high-efficiency, energy-saving and environmentally-friendly composite high-temperature box type electric furnace, which is composed of a refractory furnace (1) and a heating element (3) and a refractory fiber insulation layer (2), characterized in that the refractory furnace ( 1) Non-fibrous refractory thin fireplace 膛, refractory fiber insulation (2) refractory fiber material; non-fibrous refractory thin fireplace 膛 thickness and refractory fiber insulation layer (2) thickness ratio of 1: 4~ 1: 20.
2.根据权利要求 1 所述的高效节能环保的复合型高温箱式电炉， 其特征在于所 述耐火材料炉膛 （1 ) 内设有发热体 （3 ); 所述发热体 （3 ) 为电热丝、 碳棒、 硅碳棒或硅钼棒。  The high-efficiency and environmentally-friendly composite high-temperature box type electric furnace according to claim 1, wherein the refractory furnace (1) is provided with a heating element (3); and the heating element (3) is an electric heating wire. , carbon rods, silicon carbide rods or silicon molybdenum rods.
3.根据权利要求 2所述的高效节能环保的复合型高温箱式电炉， 其特征在于所 述发热体 （3) 为 U型或棒状电加热体或金属电热丝。  The high-efficiency and environmentally-friendly composite high-temperature box type electric furnace according to claim 2, characterized in that the heating element (3) is a U-shaped or rod-shaped electric heating body or a metal heating wire.
4.根据权利要求 1 所述的高效节能环保的复合型高温箱式电炉， 其特征在于所 述复合型高温箱式电炉还包括测温热电偶，测温热电偶设置在耐火材料炉膛（1 ) 内。  The high-efficiency and environmentally-friendly composite high-temperature box type electric furnace according to claim 1, wherein the composite high-temperature box type electric furnace further comprises a temperature measuring thermocouple, and the temperature measuring thermocouple is arranged in the refractory furnace (1) Inside.
5.根据权利要求 1 所述的高效节能环保的复合型高温箱式电炉， 其特征在于所 述耐火材料炉膛（1 )的材质为氧化铝、氧化锆空心球耐火材质或刚玉-莫来石质 耐火材质； 所述耐火纤维隔热层 （2) 的材质为无机耐火纤维材质。  The high-efficiency and environmentally-friendly composite high-temperature box type electric furnace according to claim 1, wherein the refractory furnace furnace (1) is made of alumina, zirconia hollow sphere refractory or corundum-mullite. Refractory material; the refractory fiber insulation layer (2) is made of inorganic refractory fiber material.
6.根据权利要求 1 所述的高效节能环保的复合型高温箱式电炉， 其特征在于所 述耐火材料炉膛 （1 ) 为组装式结构或整体式结构。  The high-efficiency and environmentally-friendly composite high-temperature box type electric furnace according to claim 1, characterized in that the refractory furnace (1) is an assembled structure or a monolithic structure.
7.根据权利要求 6所述的高效节能环保的复合型高温箱式电炉， 其特征在于所 述耐火材料炉膛 （1 ) 为组装式结构， 耐火材料炉膛 （1 ) 各部分间通过高温粘 结剂进行组装。 The high-efficiency and environmentally-friendly composite high-temperature box type electric furnace according to claim 6, wherein the refractory furnace (1) is an assembled structure, and a high-temperature binder is passed between portions of the refractory furnace (1). Assemble.
8.根据权利要求 1 所述的高效节能环保的复合型高温箱式电炉， 其特征在于所 述非纤维耐火材料薄壁炉膛的厚度与耐火纤维隔热层（2) 的厚度比值在 1 : 8〜 1： 12。 The high-efficiency and environmentally-friendly composite high-temperature box type electric furnace according to claim 1, characterized in that the thickness ratio of the thickness of the non-fiber refractory thin fireplace raft to the refractory fiber insulation layer (2) is 1:8; ~ 1: 12.
9.根据权利要求 1 所述的高效节能环保的复合型高温箱式电炉， 其特征在于所 述耐火材料炉膛 （1 ) 外壁设有隔离加强筋 （5)。  The high-efficiency and environmentally-friendly composite high-temperature box type electric furnace according to claim 1, characterized in that the outer wall of the refractory furnace (1) is provided with an insulating rib (5).
10. 根据权利要求 1 所述的高效节能环保的复合型高温箱式电炉， 其特征在于 所述复合型高温箱式电炉还包括炉门（4)，耐火材料炉膛（1 )设有炉门框架（6)， 炉门 （4) 设置在炉门框架 （6) 内。  10. The high-efficiency and environmentally-friendly composite high-temperature box type electric furnace according to claim 1, wherein the composite high-temperature box type electric furnace further comprises a furnace door (4), and the refractory furnace furnace (1) is provided with a furnace door frame (6), the furnace door (4) is placed in the furnace door frame (6).
PCT/CN2011/071730 2011-03-03 2011-03-11 Energy-saving and environmental conservation composite high temperature box electric furnace WO2012116502A1 (en)

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