Accident treatment method for continuous casting machine for stainless steel slab
A slab continuous caster and accident handling technology, applied in the field of stainless steel smelting, can solve problems such as time-consuming and labor-intensive, and achieve the effects of quick production, saving manpower and material resources, and shortening the time for accident handling.
Inactive Publication Date: 2017-11-24
ZHENSHI GROUP EASTERN SPECIAL STEEL
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Problems solved by technology
During the production process of the stainless steel slab continuous casting machine, the stainless steel slab is frozen in the sector of the continuous casting machine due to operational errors or external sudden power failures. In the past, when dealing with such accidents, the frozen slab was directly cut into Small pieces of 1-2 meters are lifted out one by one, which is time-consuming and laborious, and the processing time is more than 24 hours
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0020] Due to a sudden power outage, the production system was completely paralyzed, and the continuous casting slab was frozen in the sector. After the accident, the secondary cooling water was increased to the maximum to cool the slab rapidly; the maintenance personnel used cutting tools, spreaders, and protective devices Wait for the accident treatment work, lift out the crystallizer and section 0, cut with oxygen on the upper part of section 1, lift the slab above section 0 directly, and cut with oxygen between section 7 and section 8 at the same time, the cutting is finished Finally, the slab after the 7th section is directly transported out from the roller table; then the dummy bar is sent to the 8th section of the fan section, and the pressing and clamping device of part of the fan section is opened, and the slab is pushed out in the direction of sending the dummy ingot for 6 -7 meters, press down all the clamping devices, cut between the 7th section and the 8th section,...
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The invention relates to an accident treatment method for a continuous casting machine for a stainless steel slab. The method specifically comprises the steps that production is immediately stopped when an accident occurs, the secondary cooling water amount is increased to the maximum, and the slab is rapidly cooled; then a crystallizer and a section 0 are lifted out, the upper part of a section 1 is cut by using oxygen, meanwhile, the part between a section 7 and a section 8 is cut by using the oxygen, after the cutting is completed, the part, above the crystallizer and the section 0, of the slab is directly lifted and transported away, and the part, behind the section 7, of the slab is directly transported out of a roller way; and a dummy bar is conveyed to the section 8 of a fan-shaped section, a clamping device of the fan-shaped section is opened, the slab is pushed out by 6-7m towards the conveying direction of dummy ingots, then all clamping devices are pressed down, oxygen cutting is carried out, and the cut slab is directly lifted and transported away after the cutting is completed. The method has the advantages that in the accident treatment process, the part, frozen in the fan-shaped section of the continuous casting machine, of the slab is cut into four sections, and therefore time and labor can be saved.
Description
technical field [0001] The invention relates to the field of stainless steel smelting, in particular to a method for handling accidents of stainless steel slab continuous casting machines. Background technique [0002] Stainless steel smelting requires the use of slab continuous casting machines, as shown in the Chinese patent application number 201420687266.3. During the production process of the stainless steel slab continuous casting machine, the stainless steel slab is frozen in the sector of the continuous casting machine due to operational errors or external sudden power failures. In the past, when dealing with such accidents, the frozen slab was directly cut into Small pieces of 1-2 meters are lifted out one by one, which is time-consuming and laborious, and the processing time is more than 24 hours. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a stainless steel ...
Claims
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Login to View More IPC IPC(8): B22D11/16
CPCB22D11/16
Inventor 马登德汤子伟向庆忠
Owner ZHENSHI GROUP EASTERN SPECIAL STEEL