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A method for quick replacement of large skips in coal mines

A skip and large-scale technology, which is applied in the field of rapid replacement of large skips in coal mines, can solve the problems of time-consuming, high cost, and large floor space, so as to reduce difficulty and workload, reduce load and floor space, and save civil engineering cost effect

Active Publication Date: 2020-02-14
CHINA COAL SCI & TECH GRP NANJING DESIGN & RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the technical defects of high cost, large floor space and long time-consuming in existing technical problems

Method used

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  • A method for quick replacement of large skips in coal mines
  • A method for quick replacement of large skips in coal mines
  • A method for quick replacement of large skips in coal mines

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Embodiment

[0030] Taking the hoisting system of the main shaft of a mine as an example, it uses a skip bucket with a load of 50 tons and a self-weight of about 57 tons. It has a two-stage split structure and an overall height of more than 21 meters. The traditional design scheme is to suspend the spare skip in sections on the first floor of the main shaft tower, increasing the local floor load of the main shaft tower by more than 57 tons; the wellhead casing needs to be disassembled to a height of more than 15 meters in the direction of replacing the skip Steel structures and tanks within the range; a set of lifting and transporting devices for moving the skip from the standby position to the vicinity of the wellhead casing needs to be set in the well tower. This method increases the fixed load of the well tower, and the cost of civil construction is high; a large number of casing steel structures need to be dismantled, and the disassembly operation takes a long time, and the installation...

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Abstract

The invention relates to the field of skip devices, and in particular to a method for rapid replacement of a large coal mine skip. The method comprises the steps that an upper body and a lower body ofthe skid are separately conveyed in and out by disassembling a skid middle flange; the height of a first layer heapstead and the height of a sleeve frame in and out of the skip are lowered; an open-close type movable sleeve frame is arranged, and the sleeve frame and a cage guide are opened and closed integrally; the difficulty and workload of dismantling and installing and restoring the sleeve frame are reduced; a spare skid is stored in a warehouse, and the storage in the heapstead or a headframe is canceled; the floor area and load of the heapstead or the headframe and lifting equipment isreduced; a temporary rail mounting beam is reserved during the design of the sleeve frame and is connected with an outer fixing track of the sleeve frame; and a temporary track is installed quickly when the skip is replaced. An outlet headframe is paved on the track, the transfer of the skid in the headframe is avoided, the movement is smooth, and the process is less. The technical defects of high cost, large occupied area and long time consuming in the existing technical problems are solved. The method for rapid replacement of the large coal mine skip is simple, quick, low in cost and practical.

Description

technical field [0001] The invention relates to the field of skip devices, in particular to a method for quickly replacing large skips in coal mines. Background technique [0002] With the production capacity of more than 10 million tons of super-large mines using shaft development methods have emerged one after another, with a load volume of more than 40m 3 The use of extra large skips is increasing. According to actual use experience, the service life of these extra-large skips is about 2 years, and the replacement of skips is relatively frequent. Because these extra-large skips (upper and lower split structures, connected by flange bolts) are much larger in weight and overall dimensions than small and medium-sized skips. The traditional spare skips are stored and hung in the wellhead room. To achieve this purpose, the space and load of the wellhead room (well tower) usually have to be increased. Before the skip is replaced, some metal support structures such as wellhead...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B19/04
CPCB66B19/04
Inventor 刘其兵张丽珍冀连权
Owner CHINA COAL SCI & TECH GRP NANJING DESIGN & RES INST CO LTD
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