CN2471440Y - Normal annealing furnace for hot rolled silicon steel plates - Google Patents
Normal annealing furnace for hot rolled silicon steel plates Download PDFInfo
- Publication number
- CN2471440Y CN2471440Y CN 00230381 CN00230381U CN2471440Y CN 2471440 Y CN2471440 Y CN 2471440Y CN 00230381 CN00230381 CN 00230381 CN 00230381 U CN00230381 U CN 00230381U CN 2471440 Y CN2471440 Y CN 2471440Y
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- furnace
- silicon steel
- radiant tube
- throat
- tube heating
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Abstract
The utility model discloses a new normalizing annealing furnace for silicon steel hot-rolled plates, which comprises a non-oxidation furnace (1), a furnace throat (2) connecting the non-oxidation furnace (1) with a radiant tube heating furnace (3), a heating/quenching segment (4) connected with the radiant tube heating furnace (3), a soaking pit (5) and a water-cooling segment (6) connected orderly and a heater (7) arranged inside the furnace throat (2). The utility model is characterized in that the temperature of the silicon steel hot-rolled plates in the furnace throat during the warming process is improved, and the shape of the sundries of the silicon steel sheets is reformed, thus stabilizing the performance index and quality such as the magnetic sense of silicon steel and iron loss; the passing speed of the plates is increased by 20 to 30 percent since the temperature of the plates is increased, and the production capacity is remarkably improved.
Description
The utility model relates to steel plate and carries out the normalizing treatment facility, especially belongs to hot rolled silicon steel plates is carried out the normalizing furnace that normalizing is handled.
Before this, be used to produce the hot rolled plate normalizing furnace of silicon steel, owing to do not have heater at the furnace throat place; so steel plate temperature herein is subjected to the influence of environment temperature and reduces; make the AIN second particle form that unfavorable variation take place, and logical plate speed is lower, causes production capacity not high.
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and can not produce cooling in the hot rolled silicon steel plates temperature-rise period, makes the silicon steel plate constant product quality, and the novel silicon steel hot-rolled sheet normalizing annealing stove that production capacity is improved.
The purpose of this utility model is achieved in that mainly by non-oxidation furnace, is connected the furnace throat between non-oxidation furnace and the radiant tube heating furnace, the heating/quench zone that is connected with the radiant tube heating furnace reaches the soaking pit of connection successively, the novel silicon steel hot-rolled sheet normalizing annealing stove that the water-cooled section is formed; in the hot rolled silicon steel plates temperature-rise period, can not produce the cooling phenomenon for making; and can improve silicon steel steel plate inclusion morphology thus; make silicon steel silicon steel plate constant product quality, so in furnace throat, be provided with heater.
Be further to improve and the steadying plate temperature, scribble the coatings capable of preventing from far infrared radiation layer at the inwall of non-oxidation furnace, furnace throat and radiant tube heating furnace.
Operation principle: when leading to the plate startup according to normal normalizing process, start heater simultaneously.All the other all carry out routinely.
Adopt the utility model, can improve in the hot rolled silicon steel plates temperature-rise period temperature at the furnace throat place, and make the Control for Kiln Temperature of radiant tube heating furnace section stable, also can improve the form of silicon steel steel plate field trash thus, make performance indications and constant product quality such as silicon steel plate magnetic strength, iron loss, satisfied user's demand.Because the raising of silicon steel plate plate temperature, make the logical plate speed of directional silicon steel be increased to 13 meters/minute by original 10 meters/minute, the logical plate speed of orientation free silicon steel plate is increased to 18 meters/minute by original 15 meters/minute, and production capacity significantly improves.
Description of drawings is as follows:
Fig. 1 is that novel silicon steel hot-rolled sheet normalizing annealing stove adopts the resistance heater structural representation
Fig. 2 is the resistance heater schematic layout pattern for the A-A vertical view
Fig. 3 is that novel silicon steel hot-rolled sheet normalizing annealing stove adopts the combustion heater structural representation
Be described in further detail as follows below in conjunction with accompanying drawing:
Embodiment 1 (in conjunction with the accompanying drawings 1)
Mainly by non-oxidation furnace (1); be connected the furnace throat (2) between non-oxidation furnace (1) and the radiant tube heating furnace (3); heating/quench zone (4) that is connected with radiant tube heating furnace (3) and the soaking pit (5) that connects successively; the novel silicon steel hot-rolled sheet normalizing annealing stove that water-cooled section (6) is formed; can not produce the cooling phenomenon for making in the hot rolled silicon steel plates temperature-rise period; and can improve silicon steel steel plate inclusion morphology thus; make the silicon steel product steady quality; so on the refractory masses of furnace throat (2) inner bottom surface, lay intensive " bow " font resistance heater (7) that completely is processed into, make it become band shape.When for transformation, then will be with the bottom decline certain altitude of furnace throat (2), so that steel plate passes through smoothly.On furnace throat (2) wall, fixedly mount binding post (9), join with external power supply being used for.Its operating current is 380～440 amperes.
Improve and the steadying plate temperature for further, thereby logical plate speed is increased, scribble the coatings capable of preventing from far infrared radiation layer (8) of 2～2.5 millimeters thick at the inwall of non-oxidation furnace (1), furnace throat (2) and radiant tube heating furnace (3).After being coated with coatings capable of preventing from far infrared radiation,, carry out sintering more earlier through low temperature drying.
Embodiment 2 (in conjunction with the accompanying drawings 3)
Mainly by non-oxidation furnace (1); be connected the furnace throat (2) between non-oxidation furnace (1) and the radiant tube heating furnace (3); heating/quench zone (4) that is connected with radiant tube heating furnace (3) and the soaking pit (5) that connects successively; the novel silicon steel hot-rolled sheet normalizing annealing stove that water-cooled section (6) is formed; can not produce the cooling phenomenon for making in the hot rolled silicon steel plates temperature-rise period; and can improve silicon steel steel plate inclusion morphology thus; make the silicon steel product steady quality; so that steel plate passes through smoothly; so at first will make the top of furnace throat (2) that two flat flame fuel burner nozzles (7) are installed, to join with gas pipeline.When normalizing furnace started, flat flame fuel burner nozzle (7) heated hot rolled plate.
Be coated with coatings capable of preventing from far infrared radiation layer (8) for the inwall of non-oxidation furnace (1), furnace throat (2) and radiant tube heating furnace (3), its method and effect are same as embodiment 1.
Claims (2)
1, novel silicon steel hot-rolled sheet normalizing annealing stove; mainly by non-oxidation furnace (1), be connected the furnace throat (2) between non-oxidation furnace (1) and the radiant tube heating furnace (3), the heating/quench zone (4) that is connected with radiant tube heating furnace (3) and the soaking pit (5), the water-cooled section (6) that connect are successively formed, it is characterized in that being provided with in the furnace throat (2) heater (7).
2, novel silicon steel hot-rolled sheet normalizing annealing stove according to claim 1 is characterized in that scribbling coatings capable of preventing from far infrared radiation layer (8) at the inwall of non-oxidation furnace (1), furnace throat (2) and radiant tube heating furnace (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230381 CN2471440Y (en) | 2000-07-13 | 2000-07-13 | Normal annealing furnace for hot rolled silicon steel plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230381 CN2471440Y (en) | 2000-07-13 | 2000-07-13 | Normal annealing furnace for hot rolled silicon steel plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2471440Y true CN2471440Y (en) | 2002-01-16 |
Family
ID=33593493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00230381 Expired - Lifetime CN2471440Y (en) | 2000-07-13 | 2000-07-13 | Normal annealing furnace for hot rolled silicon steel plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2471440Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381598C (en) * | 2004-12-27 | 2008-04-16 | 宝山钢铁股份有限公司 | Orientating silicon steel, manufacturing process and equipment |
| CN101812571B (en) * | 2009-02-24 | 2011-09-21 | 宝山钢铁股份有限公司 | Method for preventing internal oxidation layer in normalization treatment of electrical hot-rolled strip steel |
| WO2013131212A1 (en) * | 2012-03-08 | 2013-09-12 | 宝山钢铁股份有限公司 | Method for producing silicon steel normalizing substrate |
| WO2013131211A1 (en) * | 2012-03-09 | 2013-09-12 | 宝山钢铁股份有限公司 | Method for producing silicon steel normalizing substrate |
-
2000
- 2000-07-13 CN CN 00230381 patent/CN2471440Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100381598C (en) * | 2004-12-27 | 2008-04-16 | 宝山钢铁股份有限公司 | Orientating silicon steel, manufacturing process and equipment |
| CN101812571B (en) * | 2009-02-24 | 2011-09-21 | 宝山钢铁股份有限公司 | Method for preventing internal oxidation layer in normalization treatment of electrical hot-rolled strip steel |
| WO2013131212A1 (en) * | 2012-03-08 | 2013-09-12 | 宝山钢铁股份有限公司 | Method for producing silicon steel normalizing substrate |
| US9738946B2 (en) | 2012-03-08 | 2017-08-22 | Baoshan Iron & Steel, Co., Ltd. | Method for producing silicon steel normalizing substrate |
| WO2013131211A1 (en) * | 2012-03-09 | 2013-09-12 | 宝山钢铁股份有限公司 | Method for producing silicon steel normalizing substrate |
| US9822423B2 (en) | 2012-03-09 | 2017-11-21 | Baoshan Iron & Steel, Co., Ltd. | Method for producing silicon steel normalizing substrate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20020116 |