CN101629785A - Box-type resistance furnace - Google Patents
Box-type resistance furnace Download PDFInfo
- Publication number
- CN101629785A CN101629785A CN200910065933A CN200910065933A CN101629785A CN 101629785 A CN101629785 A CN 101629785A CN 200910065933 A CN200910065933 A CN 200910065933A CN 200910065933 A CN200910065933 A CN 200910065933A CN 101629785 A CN101629785 A CN 101629785A
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- CN
- China
- Prior art keywords
- burner hearth
- shell body
- resistance furnace
- heater
- electric resistance
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- 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.)
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Abstract
The invention discloses a box-type resistance furnace, comprising an outer shell (1), a fire box (7) and a heating element, wherein, the fire box is arranged in the outer shell, the heating element is arranged in the fire box, and an air insulation layer (6) is arranged between the outer surface at the upper part and both sides of the fire box (7) and the inner wall of the outer shell. The invention has simple structure, easy installation, safe transportation and low post-maintenance cost.
Description
Technical field
The invention belongs to a kind of laboratory firing equipment, relate generally to a kind of chamber type electric resistance furnace.
Background technology
Common laboratory chamber type electric resistance furnace, mainly form by body of heater, temperature, controller, heating element heater, thermocouple and compensating wire, body of heater is made up of burner hearth and insulation material, the different chamber type electric resistance furnace insulation materials and the thickness of adiabator layer are also different, the burner hearth that utilizes ceramic fibre material to produce, in transit, because the hardness of ceramic fibre is less, long damage fire door causes product quality problem; The user uses a period of time, and the difficulty of changing burner hearth or replacing heating element heater is bigger, and maintenance cost is also bigger.
Summary of the invention
The purpose of this invention is to provide a kind of transportation safety simple in structure, easy for installation, the chamber type electric resistance furnace that later maintenance cost is low.
Purpose of the present invention can be achieved through the following technical solutions: it comprises shell body, burner hearth, heater, and burner hearth is positioned at shell body, and heater is arranged in the burner hearth, has air heat-insulation layer between the top of burner hearth and two side external surfaces and the shell body inwall.
The graded ceramics fiber burner hearth that the two-layer ceramic fiber constituted inside and outside described burner hearth was served as reasons, wherein internal layer is the high temperature modification ceramic fiber layer, skin is the ceramic fiber layer of low form.
Described shell body inner bottom part is provided with the backing plate that can adjust burner hearth height and level, and burner hearth is positioned on the backing plate, and backing plate is fixing by adjusting screw and shell body bottom.
The inboard of described shell bonnet is provided with two U type metals and gives as security bar, is used to give as security tight burner hearth.
The present invention utilizes different ceramic fibre materials, by the integrated graded ceramics fiber of post forming burner hearth, the wall thickness of this graded ceramics fiber burner hearth is greater than the wall thickness of traditional ceramic fibre burner hearth traditional ceramic fibre insulation material and ceramic fibre burner hearth material.
AL in the internal layer of graded ceramics fiber burner hearth and the cladding material
2O
3Content, ceramic fibre classification temperature, character, thickness, density are all different, internal layer uses the higher ceramic fibre of classification temperature, AL in the fiber
2O
3Content higher, refractoriness is higher, resistance to heat shocks can be better; The classification temperature of outer field ceramic fibre is lower, and main with insulation, the price of ceramic fibre is also lower, helps reducing the cost of burner hearth.Make the effect of this graded ceramics fiber burner hearth: 1. can reduce the assembly work cost in the electric furnace production; 2. can reduce the easy maintenance cost that causes of damaging of burner hearth doorframe in the transportation in a large number; 3. high-temperature ceramic fibre material fiber length is shorter; high temperature sintering is easy to crack after a period of time; behind the cracking; deepen gradually in the crack; burner hearth subsides easily; among the present invention; the fibre length of the low form ceramic fibre that the skin of graded ceramics fiber burner hearth uses is longer; cracking to the internal layer burner hearth has played protective effect, and improve the service life of burner hearth greatly, can effectively avoid subsiding and degree of depth cracking.4. by graded ceramics fiber burner hearth traditional insulation material and burner hearth are shaped to integral structure, make the special work of structure of chamber type electric resistance furnace body of heater simple, this will improve the later maintenance cost of electric furnace effectively, reduce user's long-term use cost.Use after several years, in case damage, the user only need buy the road, and where he dares, and oneself is installed and gets final product, and does not need to increase other expense expenditure again.5. the effect of the thermal insulation layer between body of heater shell and the burner hearth can reduce the temperature of shell.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
Accompanying drawing the 3, the 4th, a kind of heater are underslung chamber structure schematic diagram.
Accompanying drawing 5 is that a kind of heater is the chamber structure schematic diagram of horizontal.
Among the figure: 1, shell body, 2, backing plate, 3, adjust screw, 4, the high temperature modification ceramic fibre, 5, the ceramic fiber layer of low form, 6, the air cooling layer, 7, burner hearth, 8, the heater installing hole, 9, heater.
The specific embodiment
In conjunction with the accompanying drawings, specific embodiments of the invention are described.
As shown in Figure 1: it comprises shell body 1, burner hearth 7 and heater, and heater is positioned at burner hearth, and burner hearth 7 is positioned at shell body 1, has air cooling layer 6 between the top of burner hearth 7 and two side external surfaces and the shell body inwall; The graded ceramics fiber burner hearth that the two-layer ceramic fiber constituted inside and outside described burner hearth 7 was served as reasons, wherein internal layer is a high temperature modification ceramic fiber layer 4, skin is the ceramic fiber layer 5 of low form.Shell body 1 inner bottom part is provided with the backing plate 2 that can adjust burner hearth height and level, and burner hearth 7 is positioned on the backing plate 2, and backing plate 2 is fixed by adjusting screw 3 and shell body 1 bottom, and shell body is provided with louvre.Movable burner hearth lid is arranged at the rear portion of body of heater shell, and burner hearth covers two U type cushion blocks that 1～1.5cm is thick of inboard welding.
Graded ceramics fiber burner hearth of the present invention can be embedded in heater the inner surface of burner hearth when moulding, also can be made into the heater installing hole on top and sidepiece.
Burner hearth as shown in Figure 2, heating is embedded in the inner surface of burner hearth.
Burner hearth shown in accompanying drawing 3,4, heater is suspended in the burner hearth by the installing hole on top.
Burner hearth as shown in Figure 5, heater is horizontally fixed in the burner hearth by the installing hole of sidepiece.
When being used to assemble burner hearth, remove the preceding 1cm plastic foam plate of burner hearth doorframe, burner hearth is adjusted to correct position; Again burner hearth is covered the inboard and inwardly cover, tighten the bonnet screw and get final product.
Claims (4)
1, a kind of chamber type electric resistance furnace, it is characterized in that: it comprises shell body (1), burner hearth (7) and heater (9), burner hearth is positioned at shell body, and heater (9) is arranged in the burner hearth, has air heat-insulation layer (6) between the top of burner hearth (7) and two side external surfaces and the shell body inwall.
2, chamber type electric resistance furnace according to claim 1, it is characterized in that: the graded ceramics fiber burner hearth that the two-layer ceramic fiber constituted inside and outside described burner hearth (7) was served as reasons, wherein internal layer is high temperature modification ceramic fiber layer (4), and skin is the ceramic fiber layer (5) of low form.
3, chamber type electric resistance furnace according to claim 1, it is characterized in that: described shell body inner bottom part is provided with the backing plate (2) that can adjust burner hearth height and level, burner hearth (7) is positioned on the backing plate (2), and backing plate (2) is fixing by adjusting screw (3) and shell body bottom.
4, chamber type electric resistance furnace according to claim 1 is characterized in that: the inboard of described shell body (1) bonnet is provided with two U type metal signature bars that are used to give as security tight burner hearth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910065933A CN101629785A (en) | 2009-08-26 | 2009-08-26 | Box-type resistance furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910065933A CN101629785A (en) | 2009-08-26 | 2009-08-26 | Box-type resistance furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101629785A true CN101629785A (en) | 2010-01-20 |
Family
ID=41574986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910065933A Pending CN101629785A (en) | 2009-08-26 | 2009-08-26 | Box-type resistance furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101629785A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519254A (en) * | 2011-12-31 | 2012-06-27 | 西安建筑科技大学 | Atmosphere-controllable vacuum box type high-temperature furnace |
| CN105598546A (en) * | 2016-02-02 | 2016-05-25 | 揭阳市美度实业有限公司 | Automatic aluminium soldering preheating muffle furnace with two subareas |
-
2009
- 2009-08-26 CN CN200910065933A patent/CN101629785A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519254A (en) * | 2011-12-31 | 2012-06-27 | 西安建筑科技大学 | Atmosphere-controllable vacuum box type high-temperature furnace |
| CN105598546A (en) * | 2016-02-02 | 2016-05-25 | 揭阳市美度实业有限公司 | Automatic aluminium soldering preheating muffle furnace with two subareas |
| CN105598546B (en) * | 2016-02-02 | 2017-12-15 | 揭阳市美度实业有限公司 | A kind of automatic aluminum soldering preheating Muffle furnace of two subregion |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100120 |