CN201284361Y - Inner hood for full-hydrogen hood-type annealing furnace - Google Patents
Inner hood for full-hydrogen hood-type annealing furnace Download PDFInfo
- Publication number
- CN201284361Y CN201284361Y CNU2008201619625U CN200820161962U CN201284361Y CN 201284361 Y CN201284361 Y CN 201284361Y CN U2008201619625 U CNU2008201619625 U CN U2008201619625U CN 200820161962 U CN200820161962 U CN 200820161962U CN 201284361 Y CN201284361 Y CN 201284361Y
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- CN
- China
- Prior art keywords
- hydrogen
- cover
- guide flow
- hood
- annealing furnace
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- Expired - Fee Related
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The utility model relates to an inner cover of an all hydrogen cover-type annealing furnace, comprising a cover shell. The inner part of the cover shell is provided with a guide flow cover by a suspension device; the guide flow cover is uniformly distributed with a plurality of guide flow holes. In the annealing process, the hydrogen is protected to move along the gap bottom between the cover shell and the guide flow cover and then move upward till to the top part of the cover shell, and convection circulation is formed under the effect of a fan to protect the steel coil and wires, thus improving the uniformity of the furnace temperature, and ensuring that all the mechanical properties of the anneal materials reach standard requirements. Simultaneously, part of the hydrogen enters a working area from the guide flow holes, thus avoiding that the hydrogen can not reach a blind area between two layers and further improving the working efficiency of heat treatment. The product is widely applied to the all hydrogen cover-type furnaces with multiple stacked steel coils and wire annealing.
Description
Technical field:
The utility model relates to a kind of bell type annealing furnace, relates in particular to a kind of full-hydrogen hood-type annealing furnace inner cover.
Background technology:
In recent years; along with the sheet material of market to ferrous metal and non-ferrous metal clean annealing; the continuous increase of wire rod demand; and these sheet materials; wire rod is normal form transmission with rolling in production process; its thermal treatment mainly relies on bell type annealing furnace for a long time; present state-of-the-art technology is to adopt the perhydro strong convection bell type furnace to handle; needing to feed hydrogen in carrying out the annealed process protects material; make it not oxidized; surface-brightening; and improved heat transfer efficiency; thereby improved anneal capability, also guaranteed temperature uniformity, guaranteed the mechanical property of coil of strip and wire rod.For this reason; when on table, stacking coil of strip or wire rod; must coil of strip and heating mantles be separated with inner cover; hydrogen enters along the space of coil of strip and inner cover from the bottom margin of inner cover and rises; move down from the centre hole of coil of strip or the gap of wire rod then; bottom at table is equipped with explosion-proof fan; utilize blower fan to form the convection circulation of gas up and down; make whole inner cover form a gaseous exchange passage; guarantee that temperature is even in the stove, because each big steel mill reduces production costs in order to enhance productivity at present; when the design bell furnace, require the space in the bell furnace enough big; adopting isosceles triangle or quincunx stacking when stacking coil of strip or wire rod, staggers mutually in every layer of position, and the centre hole of the coil of strip of levels is not on same axis like this; when using original inner cover; after hydrogen entered from the bottom margin of inner cover, most of hydrogen moved down from the coil of strip center of bottom, and the hydrogen shield that obtains to the upper strata is few more so more; product annealed effect is reduced greatly, influenced the quality of product.
The utility model content:
The purpose of this utility model has overcome deficiency of the prior art exactly, and a kind of simple in structure, novel full-hydrogen hood-type annealing furnace inner cover that water conservancy diversion is effective is provided.
The utility model is achieved in that a kind of full-hydrogen hood-type annealing furnace inner cover, comprises case, it is characterized in that: the inside at described case is equipped with pod by suspension chain.
The utility model compared with prior art has following advantage:
1. owing to adopted pod; protection hydrogen enters along bottom, the space between case and the pod and moves up in annealing process; move to the top of case always; effect at blower fan forms convection circulation up and down then; coil of strip and wire rod are protected; improve temperature uniformity, guaranteed every mechanical property of institute's annealed material, reached standard-required.
Since on pod uniform distribution several pod apertures, a part of hydrogen directly enters workspace from pod apertures, avoid layer with layer between the blind area that hydrogen can't arrive appears, further improve heat treated work efficiency.
3. because the pod housing is thinner, progressively adopt reinforcement during design, both improved the intensity of pod, guaranteed heat transfer property again.
Description of drawings:
Fig. 1 is structural representation 1. cases 2. pods 3. pod apertures 4. tables 5. stiffening webs 6. suspension systems of full-hydrogen hood-type annealing furnace described in the utility model with inner cover
Embodiment:
As can be seen from Figure 1, a kind of novel full-hydrogen hood-type annealing furnace inner cover comprises case 1, it is characterized in that: the suspension system 6 in the inside of described case 1 by its top is equipped with pod 2.
In order to improve the intensity of pod 2, on pod 2 uniform distribution some stiffening webs 5.
Claims (3)
1. a full-hydrogen hood-type annealing furnace inner cover comprises case (1), it is characterized in that: the suspension system (6) in the inside of described case (1) by its top is equipped with pod (2).
2. full-hydrogen hood-type annealing furnace inner cover according to claim 1 is characterized in that: go up several pod apertures of uniform distribution (3) at described pod (2).
3. full-hydrogen hood-type annealing furnace inner cover according to claim 1 is characterized in that: go up some stiffening webs of uniform distribution (5) at described pod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201619625U CN201284361Y (en) | 2008-10-24 | 2008-10-24 | Inner hood for full-hydrogen hood-type annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201619625U CN201284361Y (en) | 2008-10-24 | 2008-10-24 | Inner hood for full-hydrogen hood-type annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284361Y true CN201284361Y (en) | 2009-08-05 |
Family
ID=40949350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201619625U Expired - Fee Related CN201284361Y (en) | 2008-10-24 | 2008-10-24 | Inner hood for full-hydrogen hood-type annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284361Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632370A (en) * | 2012-04-28 | 2012-08-15 | 中冶南方(武汉)威仕工业炉有限公司 | Manufacturing process of inner cover of total hydrogen cover-type furnace |
| CN113930593A (en) * | 2021-10-26 | 2022-01-14 | 无锡普天铁心股份有限公司 | Production method of low-loss wide-material oriented silicon steel |
-
2008
- 2008-10-24 CN CNU2008201619625U patent/CN201284361Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632370A (en) * | 2012-04-28 | 2012-08-15 | 中冶南方(武汉)威仕工业炉有限公司 | Manufacturing process of inner cover of total hydrogen cover-type furnace |
| CN102632370B (en) * | 2012-04-28 | 2014-09-10 | 中冶南方(武汉)威仕工业炉有限公司 | Manufacturing process of inner cover of total hydrogen cover-type furnace |
| CN113930593A (en) * | 2021-10-26 | 2022-01-14 | 无锡普天铁心股份有限公司 | Production method of low-loss wide-material oriented silicon steel |
| CN113930593B (en) * | 2021-10-26 | 2024-01-16 | 无锡普天铁心股份有限公司 | Production method of low-loss wide-material oriented silicon steel |
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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: 20090805 Termination date: 20131024 |