CN104405439A - Mine feeding buffer installation method - Google Patents

Abstract

The invention relates to a mine feeding buffer installation method. The mine feeding buffer installation method comprises the steps of firstly installing a lifting steel beam at an upper mouth of a storage bin, lifting and fixing the two ends of the lifting steel beam by adopting anchor rods and trays, and reinforcing and fixing the lifting steel beam by using two groups of anchor cables at the middle position of the lifting steel beam; installing a moving pulley and a chain block on the well fixed lifting steel beam; pouring a circular truncated cone at a position slightly lower than the upper mouth of the storage bin, and reserving dual shock absorbing arch-shaped beam frame beam sumps in the circular truncated cone; lowering the moving pulley and the chain block to install dual shock absorbing arch-shaped beams in the reserved frame beam sumps in the circular truncated cone, driving ground anchors into the two ends of the dual shock absorbing arch-shaped beam and pouring cement to seal and fix the ground anchors; overlapping cover plates onto the dual shock absorbing arch-shaped beams and reserving an installation position of a buffer at the middle position; lowering the moving pulling and the chain block to install the buffer at the reserved position; withdrawing the cover plates, the moving pulley and the chain block to complete the installation of the buffer. The method is simple and the orderly, high-efficiency and safe installation of the mine feeding buffer is realized.

Description

A kind of mine feeding buffer installation method

technical field

The invention relates to a mine feeding buffer installation method, which is especially suitable for the installation of the feeding buffer which mainly buffers solid materials from the ground to the underground under the background of solid filling coal mining.

Background technique

In solid filling coal mining technology, solid filling materials such as gangue, fly ash, loess and aeolian sand are transported to the underground through the ground transportation system and the vertical delivery system for solid filling materials, and then transported to the back of the working face through the underground material transportation system The perforated bottom unloading conveyor is used to unload to the goaf at the back of the working face, so as to realize the filling of the working face. In the solid filling coal mining technology, the coal of the working face is mined by the solid filling material through the replacement method, and then used as the main support to bear the main load of the overlying strata, thereby restricting the movement of the overlying strata; moving the roof strata of the working face from the traditional The collapsed zone, fissure zone, and curved subsidence zone in the coal mine became only the fissure zone and the curved subsidence zone, and safe coal mining under the water body was realized within a certain range, and the deformation of the overlying strata was effectively controlled. Among them, the safe delivery of solid filling materials from the ground to the underground is a key technology for solid filling coal mining. In current production practice, feeding buffers are generally used to buffer materials and reduce the impact caused by material delivery. Therefore, how to safely and efficiently complete the installation of mine feeding buffers to achieve material buffering is a key technical link in solid filling coal mining.

Contents of the invention

Technical problem: The purpose of this invention is to overcome the deficiencies in the prior art, and provide a simple method, which can reduce the impact force, safe and stable installation method of mine feeding buffer.

Technical solution: The mine feeding buffer installation method of the present invention includes the following installation steps:

a. First, install the lifting steel beam on the upper opening of the storage bin, use anchor rods and pallets to lift and fix both ends of the lifting steel beam, and spray grout to seal the two ends of the lifting steel beam, in the middle of the lifting steel beam Two sets of anchor cables are used to reinforce and fix the hanging steel beam;

b. Install movable pulley and chain hoist on the fixed lifting steel beam;

c. Pouring a round platform at a position slightly lower than the upper mouth of the storage bin, and reserving double shock-absorbing arched beam frame beam sockets on the round platform;

d. Install the double shock-absorbing arched beam at the reserved frame beam socket of the round platform by lowering the movable pulley and the chain hoist, place ground anchors at both ends of the double shock-absorbing arched beam, and pour cement to seal and fix it;

e. Lap the cover plate on the double shock-absorbing arched beam, and reserve the installation position of the buffer in the middle;

f. Lower and install the buffer at the reserved position through the moving pulley and chain hoist;

g. Withdraw the cover plate, movable pulley and hand chain hoist to complete the installation of the buffer.

The length of the two ends of the lifting steel beam entering the beam nest shall not be less than 0.5m; the lifting steel beam is 20# I-beam; the distance between the casting round platform and the lifting steel beam is 2.5-3.0m; the The width of the pouring round table is 1-1.5m.

Beneficial effects: due to the adoption of the above technical scheme, the present invention can realize the orderly, efficient and safe installation of the buffer, ensure the safe buffering of mine materials, reduce the damage of materials to the storage bin wall, and ensure the solid All aspects of filling coal mining are carried out in a safe and orderly manner. The installation method of the buffer is simple and easy to operate, the installation of each equipment is orderly, safe and efficient, and the quick installation of the buffer can be realized, and it has universal applicability to the installation of similar feeding buffers.

Description of drawings

Fig. 1 is a sectional view of the arrangement of the buffer installation equipment of the present invention;

Fig. 2 is a layout plan view of the buffer installation device of the present invention.

In the figure: 1-storage bin; 2-lifting steel beam; 3-anchor rod; 4-tray; 5-anchor cable; 6-moving pulley; 7-chain hoist; beam; 10 - buffer.

Detailed ways

An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

Mine feeding buffer installation method of the present invention, concrete steps are as follows:

a. First install the lifting steel beam 2 on the upper opening of the storage bin 1, and use the method of anchor rod 3 and pallet 4 to support and fix the two ends of the lifting steel beam 2. The length of the two ends of the lifting steel beam 2 entering the beam nest must not be less than 0.5m. The two ends of the lifting steel beam 2 are sprayed and sealed, and two groups of anchor cables 5 are used to reinforce and fix the lifting steel beam 2 at the middle position of the lifting steel beam 2; the lifting steel beam 2 adopts 20# I-beam.

b. Install movable pulley 6 and chain hoist 7 on the fixed lifting steel beam 2;

c. Concrete a circular platform 8 at a position slightly lower than the upper opening of the storage bin 1, and the width of the poured circular platform 8 is 1-1.5m. A double shock-absorbing arched beam 9 frame beam nest is reserved on the round platform 8; the distance between the casting round platform 8 and the lifting steel beam 2 is 2.5-3.0m.

d. Lower and install the double shock-absorbing arched beam 9 at the reserved frame beam socket of the round table 8 through the movable pulley 6 and the chain hoist 7, place ground anchors at both ends of the double-shock-absorbing arched beam 9, and pour cement to seal it fixed;

e. Lap the cover plate on the double shock-absorbing arched beam 9, and reserve the installation position of the buffer 10 in the middle;

f. Lower and install the buffer 10 at the reserved position through the movable pulley 6 and the chain block 7;

g. Withdraw the cover plate, movable pulley 6 and chain block 7 to complete the installation of the buffer 10 .

Embodiment 1, taking the installation method of a mine feeding buffer as an example, the specific installation steps are as follows:

Step (1): First, install 20# I-steel lifting steel beam 2 on the upper opening of storage bin 1, and ensure that the length of lifting steel beam 2 entering the beam nest at both ends is not less than 0.5m, using anchor rod 3 plus pallet 4 The two ends of the lifting steel beam 2 are lifted and fixed, and the two ends of the lifting steel beam 2 are sprayed and closed. In the middle of the lifting steel beam 2, two sets of anchor cables 5 are also used to reinforce and fix it;

Step (2): Install the mining movable pulley 6 and the chain block 7 on the lifting steel beam 2, and its chain adopts a high-strength lifting chain of 800Mpa;

Step (3): pouring a 1m wide round platform 8 at a position about 2.5m away from the lower part of the hoisting steel beam 2, and reserving double shock-absorbing arched beams 9 frame beam sockets on the round platform 8;

Step (4): lowering and installing the double shock-absorbing arched beam 9 through the movable pulley 6 and the chain hoist 7, anchoring ground anchors at both ends of the double shock-absorbing arched beam 9, and pouring to seal and fix it;

Step (5): Lap the cover plate on the double shock-absorbing arched beam 9, and leave the position of the elastic buffer 10;

Step (6): Similarly, lower the elastic buffer 10 through the movable pulley 6 and the chain block 7;

Step (7): withdraw the cover plate, movable pulley 6 and chain block 7, and complete the installation of the feeding buffer.

Claims (5)

1. mine feeds intake a snubber mounting method, it is characterized in that: comprise the following steps:

A. first storage bin (1) installation lifting girder steel (2) suitable for reading, the mode adopting anchor pole (3) to add pallet (4) is carried out picking-up to lifting girder steel (2) two ends and is fixed, and it is closed to carry out whitewashing to lifting girder steel (2) two ends, reinforce fixing with two groups of anchor cables (5) to hanging girder steel (2) in lifting girder steel (2) middle position;

B. on the lifting girder steel (2) fixed, movable pulley (6) and Chain block (7) are installed;

C. round platform (8) is built in storage bin (1) position more on the lower side suitable for reading, and at upper reserved double damping arched girder (9) the framework hitch of round platform (8);

D. transferred by movable pulley (6) and Chain block (7) and double damping arched girder (9) is installed in the reserved framework hitch place of round platform (8), make earth anchor at double damping arched girder (9) two ends, and joints cement carries out to it closed fixing;

E. on double damping arched girder (9), cover plate is overlapped, in the installation site of middle part reserved buffer (10);

F. transferred by movable pulley (6) and Chain block (7) and snubber (10) is installed in reserved location;

G. recall cover plate, movable pulley (6) and Chain block (7), complete the installation of snubber (10).

2. a kind of mine according to claim 1 feeds intake snubber mounting method, it is characterized in that: the length that described lifting girder steel (2) two ends enter hitch must not be less than 0.5m.

3. a kind of mine according to claim 1 feeds intake snubber mounting method, it is characterized in that: described lifting girder steel (2) is 20# i iron.

4. a kind of mine according to claim 1 feeds intake snubber mounting method, it is characterized in that: described to build round platform (8) apart from the distance of lifting girder steel (2) be 2.5 ~ 3.0m.

5. a kind of mine according to claim 1 feeds intake snubber mounting method, it is characterized in that: described in build round platform (8) width be 1 ~ 1.5m.