Applicable to the method of changing the steel derrick to the well tower in the underground mining hoisting system

Abstract

The invention discloses a method suitable for converting a steel well frame into a well tower for an underground mining lifting system. The method includes the steps of firstly, determining a containing type well tower design scheme; secondly, conducting implementation step by step according to the scheme; thirdly, erecting a steel-structure safety channel for lifting up and putting down personnel, materials and devices on a deputy wellhead, safely isolating a deputy well lifting steel well frame from a head sheave through a steel plate, closing a steel wire rope running channel from the head sheave to a lifting machine room through a scaffold and a scaffold floor layer by layer, and detaching a hoisting framework and a lodge room on the top of an existing steel well frame. By means of the method, the well tower can be newly established under the condition that the deputy well lifting steel well frame does not shut down, and after the well tower civil engineering building project is completed and a lifting device is installed and adjusted, an upper head sheave, a lower head sheave and an inclined support of the existing steel well frame are detached. A vertical frame of the existing steel well frame extends to a cage blocking beam of the well tower, and a steel inner frame of the well tower is formed. After rope hanging, cage descending and adjusting, the well tower can be used for production run.

Description

technical field [0001] The invention belongs to the technical field of mining engineering, and in particular relates to a method suitable for changing a steel derrick into a well tower in an underground mining lifting system. Background technique [0002] The auxiliary shaft is the only channel for production personnel, materials, and equipment to go up and down the mine. The supporting structures of the existing auxiliary shaft hoisting system generally include a derrick and a well tower. The advantages of the derrick are simple structure and less investment. In cold and wet weather in winter, when the hoisting system is stopped, the top wheel and the first rope are prone to freeze. If not handled in time, the first rope is easy to slip, which poses a great safety hazard to the operation of the auxiliary shaft, especially for people going up and down the shaft. With the improvement of people's safety awareness and the expansion of production scale, a considerable number of ...

AI Technical Summary

Problems solved by technology

[0002] The auxiliary shaft is the only channel for production personnel, materials, and equipment to go up and down the mine. The supporting structures of the existing auxiliary shaft hoisting system generally include a derrick and a well tower. The advantages of the derrick are simple structure and less investment. In cold and wet weather in winter, when the hoisting system stops running, the top wheel and the first rope are likely to freeze. If not handled in time, the first rope is easy to slip, which poses a great safety hazard to the operation of the auxiliary shaft, especially when people go up and down the shaft.

With the improvement of people's safety awareness and the expansion of production scale, a considerable number of derricks can no longer meet the needs of safety and production, and hope to transform them into well towers

If the conventional method of reconstruction and expansion is followed, that is, the original steel derrick is dismantled first, and then the reinforced concrete well tower is built, and then the equipment is installed and debugged. After the new lifting system of the auxiliary shaft is completed and put into production, the mine will stop production for at least one year. mine unacceptable

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