A method of breaking steel well wall
A technology of shaft wall and steel plate, applied in the field of mine shaft wall demolition technology, can solve the problems of low efficiency, unsuitable construction of cutting process, long construction period, etc., and achieve the effects of high process safety, improved disaster resistance, and easy construction and operation.
Active Publication Date: 2018-09-21
CHINA COAL XINJI ENERGY CO LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0015] A method for removing the steel shaft wall proposed by the invention can solve the technical problems that the traditional cutting process is not suitable for construction in the mine, and the construction period is long and the efficiency is low
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0034] The present invention is described further below:
[0035] The method for breaking the steel shaft wall described in the first embodiment is aimed at the demolition plan of the original steel plate shaft wall of the auxiliary shaft, that is, the integrated construction of "planing, welding, and cutting", and specifically includes the following steps:
[0036] 1. "planing"
[0037] Use Lincoln YS-EGW / AGW electric welding machine 45KW electric welding machine with carbon arc gouging tongs, use rectangular carbon rods, adjust the current of the electric welding machine to about 300A, and stand facing the well wall from left to right. The carbon arc gouging method is used to cut the anchor point of the anchor point, and a rectangular groove is cut out, and the depth exceeds the thickness of the steel plate, forming a simple and relatively closed molten pool.
[0038] 2. "welding"
[0039] Since the heat generated by carbon arc gouging is low enough to reach the melting po...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a method for getting rid of a steel well wall, and can solve the technical problems of improper construction in a mine, long construction period and low efficiency in a traditional cutting process. The method comprises a carbon arc gouging procedure, a general welding procedure and an oxygen spear gas cutting procedure, and comprises the following steps: (1) firstly, a groove is formed on the steel well wall needing to be removed by using carbon arc gouging; (2) then, general electric welding is used for welding in the groove to raise the temperature in the groove; and (3) finally, the oxygen spear gas cutting is used for introducing oxygen in the heated groove; and after the oxygen is introduced, the steel smelting point is reduced, the steel plate is molten by a large area, and the steel plate is separated from concrete and a back anchor clamp to achieve the purpose of getting rid of the steel well wall steel plate. The method for getting rid of the steel well wall is faster in construction, easier to construct, low in labor intensity, higher in process safety and excellent in economic benefit.
Description
technical field [0001] The invention relates to the technical field of mine shaft wall removal, in particular to a method for removing steel shaft walls. Background technique [0002] Due to long-term geological reasons, the shaft of the mine shaft deviates after water inrush. In order to maximize the effective circle of the shaft, it is necessary to repair various damages of the shaft, such as the original preset steel plate shaft wall "folded steel plate" and "fish mouth". Partial removal of the steel plate. [0003] The traditional cutting techniques are as follows: [0004] 1. Oxyacetylene flame cutting [0005] Oxyacetylene flame cutting is the most commonly used cutting method at present. It uses the heat released during the combustion of oxygen and acetylene to melt the steel, so as to achieve the purpose of cutting. However, since there will be concrete behind the steel plate, it is difficult for the oxyacetylene flame to cut through the steel plate, and the concr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/013B23K7/00
CPCB23K7/00B23K9/013
Inventor 史勇居宪博方运买邱仅明朱刚
Owner CHINA COAL XINJI ENERGY CO LTD