CN201867078U - Preheating furnace for heating materials of arc furnace - Google Patents
Preheating furnace for heating materials of arc furnace Download PDFInfo
- Publication number
- CN201867078U CN201867078U CN2010206179027U CN201020617902U CN201867078U CN 201867078 U CN201867078 U CN 201867078U CN 2010206179027 U CN2010206179027 U CN 2010206179027U CN 201020617902 U CN201020617902 U CN 201020617902U CN 201867078 U CN201867078 U CN 201867078U
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- flue
- combustion chamber
- preheating furnace
- air outlet
- furnace
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Abstract
The utility model discloses a preheating furnace for heating materials of an arc furnace. The preheating furnace comprises a combustion chamber with an air outlet, and a flue communicated with the air outlet of the combustion chamber, wherein the flue is arranged vertically upwards; a blanking hopper is arranged in the upper part of the flue; a plurality of material guide plates are arranged in the flue below the blanking hopper; a material outlet is arranged at the bottom of the flue; and a discharge valve is arranged on the material outlet. The preheating furnace has the advantages that the air outlet of the combustion chamber is communicated with the air inlet of the flue, and a material guide passage is arranged therein; accordingly, mineral materials from the upper blanking hopper can be preheated to 1200 DEG C in a short time when dropping from the material outlet at the bottom through the material guide passage, and then the preheated materials reaching the smelting temperature are fed to the arc furnace; and the preheating furnace can lower the smelting cost in comparison to the electric heating, and is more environment-friendly without generating coal slag and waste gas by using cokes instead of coals.
Description
Technical field
The utility model relates to a kind of preheating furnace, especially relates to the preheating furnace that is used for the electric arc furnaces raw material.
Background technology
The raw mineral materials that need smelt such as bauxite etc. are thrown at normal temperatures to be warmed up in the electric arc furnaces more than 2000 ℃ and are smelted production at present.Above-mentioned production overall process all is electrical heating, and this is with regard to making that the production process power consumption is higher and improved smelting cost.In order to reduce smelting cost, usually raw mineral materials was carried out preheating earlier with cheap coal before smelting, but this causes serious pollution to environment again.
Summary of the invention
The purpose of the utility model is to provide little, the pre-thermal efficiency of a kind of environmental pollution the high preheating furnace that is used for the electric arc furnaces raw material.
For achieving the above object, the utility model can be achieved through the following technical solutions:
The preheating furnace that is used for the electric arc furnaces raw material described in the utility model, it comprises combustion chamber that has air outlet and the flue that is connected with described combustion chamber air outlet; Described flue is provided with hopper for being provided with vertically upward in the superposed flue, is provided with a plurality of stock guides in the flue below described hopper; Be provided with discharging opening in described flue bottom, it is provided with discharge valve.
Described stock guide is crisscross arranged and all downward-sloping formation guide passage about in flue.
Air outlet is provided with protection network in described combustion chamber.
Advantage of the present utility model is the air outlet of combustion chamber is connected with the flue air inlet, built-in guide passage, material falls through the discharging opening of guide passage from the bottom from the hopper on top and falls, so just can carry out preheating to raw mineral materials at short notice, make it to reach the high temperature of 1200 degree, drop into again and make it to reach smelting temperature in the electric arc furnaces.Reduced smelting cost than electrical heating, coke does not have cinder and waste gas, environmental protection more again than fire coal.Stock guide is crisscross arranged and all downward-sloping formation guide passage about in flue, has increased the time of being heated when material falls, and has increased the utilization of heat energy greatly.Air outlet is provided with protection network in the combustion chamber, falls in the combustion chamber when preventing the solid accumulation heating.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
The specific embodiment:
As shown in the figure, the preheating furnace that is used for the electric arc furnaces raw material described in the utility model, it comprises combustion chamber 1 that has air outlet and the flue 2 that is connected with described combustion chamber 1 air outlet; Described flue 2 is provided with hopper 3 for being provided with vertically upward in the superposed flue 2, is provided with a plurality of stock guides 4 in the flue 2 below described hopper 3; Be provided with discharging opening 5 in described flue 2 bottoms, it is provided with discharge valve 6; Described stock guide 4 is crisscross arranged and all downward-sloping formation guide passage about in flue 2, and 1 air outlet is provided with protection network 7 in described combustion chamber.
Claims (3)
1. preheating furnace that is used for the electric arc furnaces raw material, it comprises combustion chamber (1) that has air outlet and the flue (2) that is connected with described combustion chamber (1) air outlet; It is characterized in that: described flue (2) is provided with hopper (3) for being provided with vertically upward in the superposed flue (2), is provided with a plurality of stock guides (4) in the flue (2) of described hopper (3) below; Be provided with discharging opening (5) in described flue (2) bottom, it is provided with discharge valve (6).
2. the preheating furnace that is used for the electric arc furnaces raw material according to claim 1 is characterized in that: described stock guide (4) is crisscross arranged and all downward-sloping formation guide passage about in flue (2).
3. the preheating furnace that is used for the electric arc furnaces raw material according to claim 1 is characterized in that: air outlet is provided with protection network (7) in described combustion chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206179027U CN201867078U (en) | 2010-11-22 | 2010-11-22 | Preheating furnace for heating materials of arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206179027U CN201867078U (en) | 2010-11-22 | 2010-11-22 | Preheating furnace for heating materials of arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201867078U true CN201867078U (en) | 2011-06-15 |
Family
ID=44138230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206179027U Expired - Fee Related CN201867078U (en) | 2010-11-22 | 2010-11-22 | Preheating furnace for heating materials of arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201867078U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815731A (en) * | 2012-09-12 | 2012-12-12 | 王洪仁 | Smelting technique of brown corundum |
| CN108950123A (en) * | 2018-08-13 | 2018-12-07 | 东北大学 | A kind of steel-making material on-line mixing preheating device and method |
| CN114394821A (en) * | 2022-01-18 | 2022-04-26 | 山西吕梁山矿产品有限公司 | Process for producing brown corundum by combining rotary kiln and electric arc furnace |
-
2010
- 2010-11-22 CN CN2010206179027U patent/CN201867078U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815731A (en) * | 2012-09-12 | 2012-12-12 | 王洪仁 | Smelting technique of brown corundum |
| CN108950123A (en) * | 2018-08-13 | 2018-12-07 | 东北大学 | A kind of steel-making material on-line mixing preheating device and method |
| CN108950123B (en) * | 2018-08-13 | 2020-03-31 | 东北大学 | Online mixing and preheating device and method for steelmaking materials |
| CN114394821A (en) * | 2022-01-18 | 2022-04-26 | 山西吕梁山矿产品有限公司 | Process for producing brown corundum by combining rotary kiln and electric arc furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20121122 |