Method for removing blast furnace body
A blast furnace and body technology, applied in the field of blast furnace body dismantling, can solve the problems of low construction efficiency, unsafe construction, slow construction speed, etc., and achieve the effects of improving construction efficiency, high safety, and small vibration
Inactive Publication Date: 2019-06-21
MCC5 GROUP CORP SHANGHAI
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Problems solved by technology
Therefore, at present, large-scale lifting equipment is generally used for demolition of blast furnaces, and the demolition starts from the top of the furnace and goes down layer by layer. This method is slow in construction speed and uses many large cranes, which is uneconomical.
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] Such as figure 1 As shown, the present invention discloses a method for dismantling a blast furnace body, comprising the following steps:
[0030] Step 1: Determine the pouring direction of the blast furnace, cut the furnace wall in the pouring direction of the furnace body and take out the cold plate, and remove the residual material in the blast furnace;
[0031] Step 2: Cut off the steel structure column in the dumping direction but keep it...
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The invention discloses a method for removing a blast furnace body. The method comprises the following steps of S1, determining a toppling direction of a blast furnace, cutting a furnace wall in the toppling direction of the furnace body and taking out cold plates, and removing residual materials in the blast furnace; S2, cutting off steel structure stand columns in the toppling direction, keepingthe steel structure stand columns in the original position without removing, cutting off the other two stand columns by half, not cleaning the steel structure stand columns in the toppling direction;S3, cutting off the furnace wall and the cold plates in the half range of the furnace body, reserving 50 cm furnace walls on the two sides until the wall of the back side furnace is completely cut; and S4, completely breaking the two concrete vertical columns on a toppling side, wherein the toppling side loses the concrete vertical columns, the toppling side steel structure stand columns fall offautomatically, a supporting steel structure is lost, the furnace body is driven to be toppled, and the whole blast furnace body and the whole steel structure are completely toppled. Compared with a traditional disassembling mode, the method has the advantages that the construction efficiency is improved, the cost is low, the safety is high, the noise is low, the vibration is small, and no influence on a residential area.
Description
technical field [0001] The invention belongs to the technical field of blast furnace dismantling, and in particular relates to a method for dismantling a blast furnace body. Background technique [0002] The main body of the blast furnace and the surrounding steel structure frame are interconnected structures, and blasting demolition is not allowed due to the proximity of the blast furnace area to residential areas. Therefore, the demolition of blast furnace generally adopts large-scale hoisting equipment at present, and starts to dismantle layer by layer from the top of the furnace. This method has a slow construction speed and uses many large cranes, which is uneconomical. At the same time, the construction efficiency is low, the construction is unsafe, the noise is high, and it has a great impact on residential areas. Contents of the invention [0003] In view of this, an embodiment of the present invention provides a method for dismantling a blast furnace body to solv...
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IPC IPC(8): C21B7/00
Inventor 黄建军童成明
Owner MCC5 GROUP CORP SHANGHAI