CN201803595U - Multi-stage mullite castable electrical heating tube type vitreous furnace - Google Patents
Multi-stage mullite castable electrical heating tube type vitreous furnace Download PDFInfo
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- CN201803595U CN201803595U CN2010202840684U CN201020284068U CN201803595U CN 201803595 U CN201803595 U CN 201803595U CN 2010202840684 U CN2010202840684 U CN 2010202840684U CN 201020284068 U CN201020284068 U CN 201020284068U CN 201803595 U CN201803595 U CN 201803595U
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- flame retardant
- pouring material
- mullite
- furnace
- electrical heating
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Abstract
The utility model discloses a multistage mullite castable electrical heating tube type vitreous furnace which comprises a plurality of sections of furnace bodies. Each section of furnace body comprises a casing, an insulating layer, a mullite castable flame retardant coating, a resistance tape and a conducting rod, wherein the casing, the insulating layer and the mullite castable flame retardant coating are arranged from the outer part to the inner part in sequence, the resistance tapes are fixed on the inner surfaces of the mullite castable flame retardant coatings; and the conducting rod penetrate through the casings, aluminum silicate fibre insulating layers and the mullite castable flame retardant coatings. The vitreous furnace adopts the mullite castable flame retardant coatings, and the linear variation is small (not more than 0.5 percent) at high temperature, so that the relative displacement between the flame retardant coatings and the casings caused by the large expansion coefficient of the flame retardant coatings in the prior art is avoided, and the structural distortion and damage to the conducting rods and the resistance tapes caused by the expansion of the flame retardant coatings are also avoided. An upper temperature blocking ring and a lower temperature blocking ring arranged on each section of furnace body effectively solve different temperature requirements to each section of furnace body during the practical production process. The totally opposite open design of each section of furnace body provides convenience for equipment maintenance.
Description
Technical field
The utility model relates to a kind of vitrification furnace, and particularly a kind of multistage mullite pouring material is as the electrical heating tubular type vitrification furnace of refractory lining.
Background technology
Early stage vitrification furnace (as shown in Figure 1) adopts carborundum as refractory lining, and resistive band is embedded in the groove of carborundum furnace lining.Find by practical application, the thermal coefficient of expansion of carborundum is very big, and its total length of high temperature (more than 1000 ℃) back (long 7 meters) swell increment is more than 10 centimeters, and shell does not then expand owing to temperature low (below 80 ℃), therefore, produced relative displacement between carborundum furnace lining and the shell.Again because the conducting rod and shell associated of inner chamber heating element heater, thus will cause conducting rod to be broken, can't normal power-up work.And the coefficient of expansion that is embedded in the resistive band in the carborundum furnace lining groove is also less than the coefficient of expansion of carborundum, thus the phenomenon that also has resistive band to be broken.Therefore existing vitrification furnace damages easily, need often keep in repair the use cost height.
The utility model content
The purpose of this utility model provides the multistage electrical heating tubular type vitrification furnace of a kind of mullite pouring material as refractory lining.Mullite pouring material is made flame retardant coating; line changes the coefficient of expansion very little (being no more than 0.5%) when high temperature (more than 1000 ℃); not can with shell generation relative displacement; influence the structure of vitrification furnace; simultaneously, the conducting rod that is fixed on heating element heater on its furnace lining and heating element heater external connection can even not damage because of the heat expansion recurring structure distortion of furnace lining.
The purpose of this utility model provides a kind of multistage mullite pouring material electrical heating tubular type vitrification furnace, is made of the more piece body of heater, and every joint body of heater comprises shell, heat-insulation layer, mullite pouring material flame retardant coating, resistive band and conducting rod; Wherein be followed successively by shell, heat-insulation layer and mullite pouring material flame retardant coating from outside to inside, resistive band is fixed on the mullite pouring material flame retardant coating inner surface, and conducting rod passes shell, alumina silicate fibre heat-insulation layer and mullite pouring material flame retardant coating.The mullite pouring material flame retardant coating is the furnace lining of body of heater.
Described every joint body of heater is provided with a retaining Wen Huan up and down, and every joint body of heater forms a relatively independent heated at constant temperature chamber.Can control respectively every joint stove body temperature.Because vitrification furnace is multistage, therefore the operating temperature difference of every joint furnace chamber all is provided with retaining Wen Huan at every joint heating chamber, prevents to greatest extent that heat energy between cavity from flowing and the phase mutual interference that causes, is convenient to the temperature of the every joint cavity of accurate more control like this.
The center of described more piece body of heater is provided with a hollow heat resisting pipe.Hollow heat resisting pipe is the workspace.
Described resistive band fixedly is suspended on the mullite pouring material flame retardant coating inner surface with heat-resisting steel nail and insulating porcelain piece.
Described every joint body of heater opposite opened is provided with, and convenient for maintaining and equipment are installed.Be that left and right sides two halves form assembly.
There is following advantage in the utility model:
1, the utility model adopts the mullite pouring material flame retardant coating, because the higher temperature line of mullite material changes little (being not more than 0.5%), avoided the prior art flame retardant coating coefficient of expansion big, relative displacement between that cause and the shell, and because the conducting rod that the flame retardant coating expansion causes and the malformation and the damage of resistive band, more energy-conservation, economical, easy to use.
2, the every joint body of heater of the utility model two retaining temperature rings up and down of being disposed have effectively solved in the actual production process the different temperature control requirements to every joint body of heater.
3, the utility model is owing to adopt the design of the complete opposite opened of every joint body of heater, is the maintenance of the equipment condition of providing convenience effectively.
Description of drawings:
Fig. 1 is existing vitrification furnace structural representation;
Fig. 2 is that the A of Fig. 1 is to the deployed configuration schematic diagram;
Fig. 3 is the structural representation of multistage mullite pouring material electrical heating tubular type vitrification furnace of the present utility model;
Fig. 4 is the enlarged diagram of A part among Fig. 3;
Fig. 5 is the vertical view of multistage mullite pouring material electrical heating tubular type vitrification furnace of the present utility model.
The number in the figure explanation:
1 '-shell 2 '-heat-insulation layer 3 '-sleeve pipe 4 '-groove 5 '-resistive band 6 '-liner hollow pipe
7 '-Wen chamber, 8 '-radiating aperture 9 '-Nei connecting ring 10 '-conducting rod
1-conducting rod 2-porcelain tube 3-shell 4-alumina silicate fibre heat-insulation layer 5-mullite pouring material flame retardant coating
The heat-resisting steel nail 9-of the hollow heat resisting pipe 8-of 6-resistive band 7-connector 10-retaining temperature ring 11-split pin
12-insulating porcelain piece 13-connecting bolt
The specific embodiment:
Referring to Fig. 1, be the vitrification furnace of prior art, its body of heater is followed successively by shell 1 ', heat-insulation layer 2 ' and sleeve pipe 3 ' from outside to inside, has groove 4 ' in the sleeve pipe 3 ', and conducting rod 10 ' passes shell 1 ', heat-insulation layer 2 ' is inserted in the groove 4 '.Resistive band 5 ' also is arranged in the groove 4 '.The centre of body of heater is provided with the liner hollow pipe 6 ' as the workspace, forms warm chamber 7 ' between liner hollow pipe 6 ' and the sleeve pipe 3 '.A plurality of radiating apertures 8 ' are set in the sleeve pipe 3 '.Because the sleeve pipe 3 ' coefficient of expansion is big, has influenced the syndeton between sleeve pipe 3 ' and heat-insulation layer 2 ' and the shell 1 ' under the condition of high temperature, causes occurring relative displacement, thereby make conducting rod 10 ' and distortion of resistive band 5 ' recurring structure and damage.
The multistage mullite pouring material electrical heating tubular type vitrification furnace that the utility model provides has then overcome above-mentioned defective of the prior art, and its concrete structure is referring to Fig. 3-5.
Referring to Fig. 3, multistage mullite pouring material electrical heating tubular type vitrification furnace of the present utility model is made of the more piece body of heater, can be 6～7 joints.Every joint body of heater comprises metal shell 3, alumina silicate fibre heat-insulation layer 4, mullite pouring material flame retardant coating 5 and heater element resistance band 6 from outside to inside successively.Heater element resistance band 6 usefulness insulating porcelain pieces 12 fixedly are suspended on the inner surface of mullite pouring material refractory lining 5, the heat-resisting steel nail 8 of insulating porcelain piece 12 usefulness is fixed on mullite pouring material flame retardant coating 5, cover split pin 11 further fixed insulation porcelain spares 12 (referring to Fig. 4) on insulating porcelain piece 12.Be provided with the hollow heat resisting pipe 7 that a root timber matter is Cr25Ni20 in the middle of the body of heater.Body of heater is the setting of complete opposite opened.Every joint body of heater is provided with a retaining temperature ring 10 up and down, makes every joint body of heater form a relatively independent heated at constant temperature chamber.Conducting rod 1 is enclosed within and passes shell 3, alumina silicate fibre heat-insulation layer 4, mullite pouring material flame retardant coating 5 in the porcelain tube 2.Left and right sides two parts by complete opposite opened form assembly, every joint body of heater is made up of two halves, with the 9 usefulness connecting bolts of the connector on two halves, 13 connections respectively, can be a body of heater (referring to Fig. 5) to assembly, every joint body of heater is fixed connecting piece also, connector 9 usefulness connecting bolts 13 on the last lower furnace body are fixedly connected, the independent body of heater of some joints can be spliced into a complete integral body up and down.
Above embodiment does not influence protection domain of the present utility model.
Claims (5)
1. a multistage mullite pouring material electrical heating tubular type vitrification furnace is made of the more piece body of heater, and it is characterized in that: every joint body of heater comprises shell, heat-insulation layer, mullite pouring material flame retardant coating, resistive band and conducting rod; Wherein be followed successively by shell, heat-insulation layer and mullite pouring material flame retardant coating from outside to inside, resistive band is fixed on mullite pouring material flame retardant coating inner surface, and conducting rod passes shell, alumina silicate fibre heat-insulation layer and mullite pouring material flame retardant coating.
2. multistage mullite pouring material electrical heating tubular type vitrification furnace according to claim 1 is characterized in that: described every joint body of heater is provided with a retaining Wen Huan up and down.
3. multistage mullite pouring material electrical heating tubular type vitrification furnace according to claim 2, it is characterized in that: the center of described more piece body of heater is provided with a hollow heat resisting pipe.
4. multistage mullite pouring material electrical heating tubular type vitrification furnace according to claim 1, it is characterized in that: described resistive band fixedly is suspended on mullite pouring material flame retardant coating inner surface with heat-resisting steel nail and insulating porcelain piece.
5. multistage mullite pouring material electrical heating tubular type vitrification furnace according to claim 1 is characterized in that: described every joint body of heater opposite opened is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202840684U CN201803595U (en) | 2010-08-06 | 2010-08-06 | Multi-stage mullite castable electrical heating tube type vitreous furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202840684U CN201803595U (en) | 2010-08-06 | 2010-08-06 | Multi-stage mullite castable electrical heating tube type vitreous furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201803595U true CN201803595U (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202840684U Expired - Fee Related CN201803595U (en) | 2010-08-06 | 2010-08-06 | Multi-stage mullite castable electrical heating tube type vitreous furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201803595U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344858A (en) * | 2017-06-20 | 2017-11-14 | 长兴兴鹰新型耐火建材有限公司 | A kind of silicic acid zirconium mullite complex abrasion-proof castable and preparation method thereof |
| CN110285672A (en) * | 2019-07-03 | 2019-09-27 | 宁夏秦氏新材料有限公司 | A kind of metal nitride synthesis device |
| CN110319691A (en) * | 2019-07-03 | 2019-10-11 | 宁夏秦氏新材料有限公司 | A kind of gas heating metal nitride synthesis device |
| CN110319689A (en) * | 2019-07-03 | 2019-10-11 | 宁夏秦氏新材料有限公司 | A kind of gas heating metal nitride synthesis device |
-
2010
- 2010-08-06 CN CN2010202840684U patent/CN201803595U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344858A (en) * | 2017-06-20 | 2017-11-14 | 长兴兴鹰新型耐火建材有限公司 | A kind of silicic acid zirconium mullite complex abrasion-proof castable and preparation method thereof |
| CN107344858B (en) * | 2017-06-20 | 2019-09-06 | 长兴兴鹰新型耐火建材有限公司 | A kind of zirconium silicate-mullite complex abrasion-proof castable and preparation method thereof |
| CN110285672A (en) * | 2019-07-03 | 2019-09-27 | 宁夏秦氏新材料有限公司 | A kind of metal nitride synthesis device |
| CN110319691A (en) * | 2019-07-03 | 2019-10-11 | 宁夏秦氏新材料有限公司 | A kind of gas heating metal nitride synthesis device |
| CN110319689A (en) * | 2019-07-03 | 2019-10-11 | 宁夏秦氏新材料有限公司 | A kind of gas heating metal nitride synthesis device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing military standard Longxiang Heat Treatment Technology Co Ltd Assignor: Beijing Great Wall Longxiang Heat Treatment Technology Development Center Contract record no.: 2012990000708 Denomination of utility model: Multi-stage mullite castable electrical heating tube type vitreous furnace Granted publication date: 20110420 License type: Exclusive License Record date: 20120925 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| DD01 | Delivery of document by public notice |
Addressee: Guo Ailing Document name: Notification of Passing Examination on Formalities |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |