CN102914162B - Medium-short stroke steel loading method - Google Patents
Medium-short stroke steel loading method Download PDFInfo
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- CN102914162B CN102914162B CN201210425427.7A CN201210425427A CN102914162B CN 102914162 B CN102914162 B CN 102914162B CN 201210425427 A CN201210425427 A CN 201210425427A CN 102914162 B CN102914162 B CN 102914162B
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- dress steel
- steel
- control system
- computer control
- charging
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 238000011068 loading method Methods 0.000 title abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000004484 Briquette Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000002912 waste gas Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Metal Rolling (AREA)
Abstract
The invention relates to a medium-short stroke steel charging method, during steel charging, a plate blank enters a heating furnace from the tail of the heating furnace, and the following three situations are adopted: a. when the temperature of the charged plate blanks is more than 700 ℃, the last plate blank in the furnace is charged to be 6.5-7 m away from a charging steel wire by using OPS conversion of a steel charging primary computer control system; b. when the temperature of the charged plate blank is 20-500 ℃, the last plate blank in the furnace is charged to be 3.3-3.6 m away from a charging steel wire by using OPS conversion of a steel charging primary computer control system; c. and when the temperature of the charged plate blanks is less than 20 ℃, loading the last plate blank in the furnace to a distance of 0.2-0.5 m from the steel loading line by using OPS conversion of a steel loading primary computer control system. The invention has the advantages that: the waste gas temperature can be reduced by 20-30 ℃, the gas consumption can be saved by about 3%, the burning of the air and gas heat exchangers is avoided, and the production capacity in rolling hours is improved.
Description
Technical field
The present invention relates to short stroke dress steel method in one.
Background technology
Heating furnace dress steel process is generally, slab is pushed to heating furnace heating by dress steel device, this kind of mode is applicable to slab blank parameter and changes little, the essentially identical situation of temperature, in the time that slab blank temperature is different, adopt the method, can cause waste fuel, extend the slab heat time, easily sky, gas change heater be burnt out.In the time can not needing in strict accordance with rolling scaduled sequence material loading dress steel personnel to select different stoves to carry out shove charge according to different blank parameters and rolling specs, this kind of dress steel mode must cause heating furnace not optimize the leeway of the buffering of dress steel, limit dress steel speed, reduce rolling rhythm, affected rolling line production capacity.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of this invention is to provide a kind of method of middle short stroke dress steel, be applicable to hot and cold material and load in mixture frequently, the diverse situation of rolling specs, reduce gas consumption, avoid sky, gas change heater to burn out, improve rolling hourly capacity.
For achieving the above object, the present invention is achieved through the following technical solutions:
A dress steel method for middle short stroke, comprises the following steps:
When dress steel, slab enters heating furnace from heating-furnace tail, is divided into following three kinds of situations:
A, in the time that shove charge board briquette is all greater than 700 DEG C, utilize dress steel one-level computer control system OPS conversion, last piece slab in stove is filled to apart from dress steel wire 6.5～7m;
B, in the time of 20 DEG C～500 DEG C of shove charge board briquettes, utilize dress steel one-level computer control system OPS conversion, last piece slab in stove is filled to apart from dress steel wire 3.3～3.6m;
C, in the time that shove charge board briquette is all less than 20 DEG C, utilize dress steel one-level computer control system OPS conversion, last piece slab in stove is filled to apart from dress steel wire 0.2～0.5m.
Compared with prior art, the invention has the beneficial effects as follows:
EGT can be reduced to 20-30 DEG C, can save gas consumption 3% left and right, avoid sky, gas change heater to burn out, improve rolling hourly capacity simultaneously.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention.
In figure: 1-dress steel wire 2-heating furnace.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in detail, but should be noted that enforcement of the present invention is not limited to following embodiment.
See Fig. 1, a kind of dress steel method of middle short stroke, when dress steel, slab enters heating furnace from heating-furnace tail utilization dress steel device:
In the time that shove charge board briquette is all greater than 700 DEG C, utilize dress steel one-level computer control system OPS conversion, last piece slab in stove is filled to apart from the dress steel mode of dress steel wire 6.5～7m, the i.e. place of Lc shown in figure;
In the time of 20 DEG C～500 DEG C of shove charge board briquettes, utilize dress steel one-level computer control system OPS conversion, last piece slab in stove is filled to apart from the dress steel mode of dress steel wire 3.3～3.6m, the i.e. place of Lb shown in figure;
In the time that shove charge board briquette is all less than 20 DEG C, utilize dress steel one-level computer control system OPS conversion, last piece slab in stove is filled to apart from the dress steel mode of dress steel wire 0.2～0.5m, the i.e. place of La shown in figure.
This kind of method utilized stove tail temperature, and the slab of lower temperature is carried out to preheating, can save gas consumption; The higher slab of temperature is carried out simultaneously cooling, improve rolling efficiency.
This kind of dress steel mode of the present invention is mainly suitable for cartridge plate base blank parameter and changes greatly, hot and cold material loads in mixture frequently, rolling specs changes the situation many, most time of material loading speed is less than mill speed, EGT can be reduced to 20-30 DEG C, can save gas consumption 3% left and right simultaneously, avoid sky, gas change heater to burn out, improve rolling hourly capacity.
Claims (1)
1. in, a dress steel method for short stroke, is characterized in that, comprises the following steps:
When dress steel, slab enters heating furnace from heating-furnace tail, is divided into following three kinds of situations:
A, in the time that shove charge board briquette is all greater than 700 DEG C, utilize dress steel one-level computer control system OPS conversion, last piece slab in stove is filled to apart from dress steel wire 6.5～7m;
B, in the time of 20 DEG C～500 DEG C of shove charge board briquettes, utilize dress steel one-level computer control system OPS conversion, last piece slab in stove is filled to apart from dress steel wire 3.3～3.6m;
C, in the time that shove charge board briquette is all less than 20 DEG C, utilize dress steel one-level computer control system OPS conversion, last piece slab in stove is filled to apart from dress steel wire 0.2～0.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425427.7A CN102914162B (en) | 2012-10-30 | 2012-10-30 | Medium-short stroke steel loading method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425427.7A CN102914162B (en) | 2012-10-30 | 2012-10-30 | Medium-short stroke steel loading method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102914162A CN102914162A (en) | 2013-02-06 |
| CN102914162B true CN102914162B (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210425427.7A Active CN102914162B (en) | 2012-10-30 | 2012-10-30 | Medium-short stroke steel loading method |
Country Status (1)
| Country | Link |
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| CN (1) | CN102914162B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10100002A1 (en) * | 2000-02-09 | 2001-08-16 | Schaefer Hans Juergen | Sequential pressing method for production of high pressure multilayer laminates for printed circuits uses a single daylight press to which the laminate is conveyed by metal foils |
| CN102605307A (en) * | 2012-03-22 | 2012-07-25 | 西安理工大学 | Preparation method for tungsten copper alloy sheet |
-
2012
- 2012-10-30 CN CN201210425427.7A patent/CN102914162B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10100002A1 (en) * | 2000-02-09 | 2001-08-16 | Schaefer Hans Juergen | Sequential pressing method for production of high pressure multilayer laminates for printed circuits uses a single daylight press to which the laminate is conveyed by metal foils |
| CN102605307A (en) * | 2012-03-22 | 2012-07-25 | 西安理工大学 | Preparation method for tungsten copper alloy sheet |
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| Publication number | Publication date |
|---|---|
| CN102914162A (en) | 2013-02-06 |
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