CN2518064Y - Industrial resistance furnace - Google Patents
Industrial resistance furnace Download PDFInfo
- Publication number
- CN2518064Y CN2518064Y CN 01257310 CN01257310U CN2518064Y CN 2518064 Y CN2518064 Y CN 2518064Y CN 01257310 CN01257310 CN 01257310 CN 01257310 U CN01257310 U CN 01257310U CN 2518064 Y CN2518064 Y CN 2518064Y
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- CN
- China
- Prior art keywords
- furnace
- heater
- burner hearth
- resistance
- utility
- Prior art date
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an industry resistance furnace. The utility model comprises a furnace casing, a heat insulating layer, a furnace chamber and a heating element, resistance wire is winded on the fire resistant supporting element in a spiral way, holes are arranged on the furnace casing, the heat insulating layer and the side surface of the furnace chamber, the heating element is inserted into the furnace casing through the hole on the side surface of the furnace casing, and hanged in the furnace chamber. The surface thermal load capability of the resistance wire is enhanced, the service life is prolonged, the short circuit arc is prevented, and the utility model facilitates the replacement of the furnace tube and the heating element.
Description
Technical field
The utility model relates to a kind of industrial furnace, especially the horizontal industrial resistance furnace of being made up of furnace shell, burner hearth, boiler tube and metal resistance heater.
Background technology
At present, horizontal industrial resistance furnace body of heater mainly contains two kinds of versions: a kind of is that its burner hearth is built into by refractory brick, the upper and lower plate brick of burner hearth has groove, resistance wire coiling tubulose inserts in the groove of upper and lower plate brick, heating is placed on boiler tube or the material in the burner hearth: another kind is that resistance wire is spirally wound on the pipe of being made by refractory material, many such resistance wire helix tubes are concatenated into one and are assembled in the drawer type framework, this drawer type framework inserts burner hearth, and heating is placed on boiler tube or the material in the burner hearth.The shortcoming of these two kinds of versions is respectively: the former is 3/4 sealed hollow because of the wire setting groove of upper and lower plate brick, the permission surface loading of resistance wire is little, service life is short, and the metal boiler tube falls in the wire setting groove that oxide skin is deposited in the lower plate brick, cause the heater short circuit to beat arcing boiler tube or segment heater spiral short circuit, change distribution of resistance and influence temperature homogeneity; The latter is higher because of burner hearth installation drawer type framework manufacturing cost, and when adopting refractory fibre to make heat-insulation layer for the raising heat insulation effect, the extraction of drawer type framework or insertion are all difficult, cause the replacing heater very inconvenient.
Technology contents
The purpose of this utility model provides a kind of industrial resistance furnace, both can improve the surface thermal load ability of resistance wire, prolongs its service life, prevents that short circuit from beating arc, can make things convenient for the replacing of boiler tube and heater again.
For achieving the above object, the utility model industry resistance furnace comprises furnace shell (1), heat-insulation layer (4), burner hearth (2) and heater (3), heater (3) is wound on the fire-proof supporting support member (9) for resistance wire (8) spiral, side at furnace shell (1), heat-insulation layer (4) and burner hearth (2) has hole (6), heater (3) inserts furnace shell (1) by the hole (6) of furnace shell (1) side, and hangs in the burner hearth (2).
Adopt the heater element resistance wire spiral of the resistance furnace of this structure to be wound on the fire-proof supporting support member, and hang in the burner hearth, the heat that makes resistance wire send can fully be delivered in the stove, has improved its surface thermal load ability, has prolonged service life.Because this resistance furnace heater is to insert in the stove, so can change easily by the hole of furnace shell side.
Description of drawings
Fig. 1 is the side partial sectional view of the utility model industry resistance furnace.
Fig. 2 be the utility model industry resistance furnace along the AA of Fig. 1 to cutaway view.
Among the figure: 1. furnace shell 2. burner hearths 3 (3 '). heater 4. heat-insulation layers 5. boiler tubes 6. holes 7. refractory brick, 8. resistance wires, 9. fire-proof supporting support members.
The specific embodiment
Industrial resistance furnace shown in Figure 1 has two rows hole 6 in the side of furnace shell 1, heat-insulation layer 4 and burner hearth 2, builds the refractory brick 7 that aperture is arranged out in burner hearth 2 between the two rows hole 6, and boiler tube 5 is shelved on it.
Industrial resistance furnace furnace shell 1 shown in Figure 2, heat-insulation layer 4 and burner hearth 2 sides have two rows hole 6, are wound in the heater 3 and 3 ' that constitutes on the fire-proof supporting support member 9 by resistance wire 8 spirals and can insert furnace shell 1 by it, and hang in the burner hearth 2.Build the refractory brick 7 that aperture is arranged out between the heater 3 and 3 ', boiler tube 5 is shelved on it.The heat that heater 3 ' distributes can transmit to boiler tube 5 by the aperture on the refractory brick 7, makes it the upper and lower thermally equivalent.Heater 3 and 3 ' is in suspension status, resistance wire 8 does not contact with refractory brick 7 and burner hearth 2 walls, can improve its surface thermal load ability, increase the service life, can prevent that again oxide skin or other impurity that boiler tube 5 or burner hearth 2 fall down from adhering on the resistance wire 8, cause short circuit to beat arc or segment short circuit, change distribution of resistance and influence temperature homogeneities in the burner hearth 2.In addition, heater 3 and 3 ' can be extracted out or insert in the hole 6 by furnace shell 1 side, is convenient to change heater 3,3 ' or resistance wire 8.
Claims (3)
1. industrial resistance furnace, comprise furnace shell (1), heat-insulation layer (4), burner hearth (2) and heater (3), heater (3) is wound on the fire-proof supporting support member (9) for resistance wire (8) spiral, side at furnace shell (1), heat-insulation layer (4) and burner hearth (2) has hole (6), it is characterized in that: heater (3) inserts furnace shell (1) by the hole (6) of furnace shell (1) side, and hangs in the burner hearth (2).
2. industrial resistance furnace according to claim 1 is characterized in that: boiler tube (5) is laid in heater (3) below that hangs in the described burner hearth (2).
3. industrial resistance furnace according to claim 2 is characterized in that: described boiler tube (5) is placed on the refractory brick (7) that has aperture, and refractory brick (7) below is hung with heater (3 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257310 CN2518064Y (en) | 2001-11-09 | 2001-11-09 | Industrial resistance furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01257310 CN2518064Y (en) | 2001-11-09 | 2001-11-09 | Industrial resistance furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2518064Y true CN2518064Y (en) | 2002-10-23 |
Family
ID=33666098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01257310 Expired - Fee Related CN2518064Y (en) | 2001-11-09 | 2001-11-09 | Industrial resistance furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2518064Y (en) |
-
2001
- 2001-11-09 CN CN 01257310 patent/CN2518064Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C56 | Change in the name or address of the patentee |
Owner name: ZHUZHOU HARD ALLOY GROUP CO LTD Free format text: FORMER NAME OR ADDRESS: ZHUZHOU HARD ALLOY PLANT |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Zhuzhou Hard Alloy Group Co., Ltd. Patentee before: Zhuzhou Carbide Alloys Factory |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |