RU1789736C - Method for filling gobs after powered mining complex in stoping steeply dipping beds by long stoop along the strike - Google Patents

Method for filling gobs after powered mining complex in stoping steeply dipping beds by long stoop along the strike

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Publication number
RU1789736C
RU1789736C SU894642782A SU4642782A RU1789736C RU 1789736 C RU1789736 C RU 1789736C SU 894642782 A SU894642782 A SU 894642782A SU 4642782 A SU4642782 A SU 4642782A RU 1789736 C RU1789736 C RU 1789736C
Authority
RU
Russia
Prior art keywords
mechanized
out space
filling material
strike
worked
Prior art date
Application number
SU894642782A
Other languages
Russian (ru)
Inventor
Александр Андреевич Каспирович
Original Assignee
Всесоюзный научно-исследовательский и проектно-конструкторский угольный институт "КузНИУИ"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Всесоюзный научно-исследовательский и проектно-конструкторский угольный институт "КузНИУИ" filed Critical Всесоюзный научно-исследовательский и проектно-конструкторский угольный институт "КузНИУИ"
Priority to SU894642782A priority Critical patent/RU1789736C/en
Application granted granted Critical
Publication of RU1789736C publication Critical patent/RU1789736C/en

Links

Description

The AKZ equipment complex, approved by the USSR Ministry of Coal Industry, is registered in the IGD named after A.A.Skochinsky from 01/28/83, No. 335 and is stored in the State Duma. A.A. Skochinsky KuzNIUI-arch. No. 5157, VNIMI, Giprogelemash, Sibgiprogormash, Technical Department of the USSR Ministry of Coal Industry, VPO Soyuzuglemash, 1PO Prokopyevskhydrogol, Kiselevsky Machine Plant named after And, S. Cherny). We accepted this technical proposal for protbtyp.

The disadvantage of the rototype is that when moving the powered roof support, the backfill array, being loose (movable), slides, exposing the roof of the formation in the upper part of the lava. The greater the difference between the productivity of the backfill pipeline and the volumes of the mined-out space formed when moving the powered roof support, the more, other things being equal, the area of the exposed roof is obtained. The filling materials in the upper zone of the worked-out space, moving, form a prism of sliding. In fact, the surface of the moving mass of the bookmark is curved (see the scientific report of the A. Skochinsky Institute of Hydrodynamics for work) Develop a technology and create a complex of AKZ equipment (based on AK-3) for excavating steep medium-sized strata and inclined layers of thick strata with long by posts along the strike with laying out the worked out space Stage Develop technical specifications for the AKZ equipment complex, state registration number 0126090100, inventory k 6748234, R. Biryukov et al .; M. 1979, p. 64).

According to the indicated studies (Fig. 3.2), the amount of exposure of the roof near the upper side of the lava, depending on the length of the lava and the angle of incidence of the formation, can reach significant sizes. Thus, for a formation with a thickness of 2 m, an angle of incidence of 80 ° and a length of lava of 60 m, bare roofs at the upper side reach 20 m, i.e. the roof is not supported by a backfill in this area of the worked-out space.

The research of G. Malakhov (release of ore from collapsed blocks. Metallurgizdat, 1952) it has been established that upon the release of bulk material, a so-called rotation ellipsoid is formed in its mass - a discharge ellipsoid with a vertical axis. In this case, the area of the moving material along the small axis of the ellipsoid of revolution is much smaller than the value of the exposed roof during the sliding prism.

The aim of the present invention is to increase the efficiency of use.

complex mechanized masonry face with the laying of the worked out space on the basis of increasing the stability of the roof in the masonry face by improving

conditions for maintaining the roof in the worked out space.

The goal is achieved in that the laying of the developed space behind the treatment mechanized complex

0 when steep strata are excavated with long columns along the strike, when filling material is fed into the worked-out space through a pipeline, they are fed by filling material into the fixed space located above the mechanized obstruction, with the possibility of moving the filling material into the worked-out space behind the mechanized lining as it moves .

The conducted patent studies show that neither in the patent nor in the scientific and technical literature there are no similar technical solutions. therefore

5, the claimed technical solution meets the criteria of Novelty and Significant differences, since it leads to a positive effect.

0 The drawing shows a way to bookmark the worked out space.

A steep coal seam is worked out by long posts along the strike with the laying of the worked out space using a treatment complex with mechanized support 1. The face is prepared by a ventilation drift 2 and a conveyor belt in FIG. not shown). The upper part of the stope (above the mechanized lining 1)

0 is secured by a wooden rack mount 3 (on lava). The worked out space, fixed by a wooden rack support 3, is separated from the bottom of the mechanized support by wooden fires 4. Bookmark

5, the material in the excavated space, secured by a wooden roof support 3, is fed through the filling pipe 5. The mined space (niche), secured by a wooden roof support 3, is divided into 0 by organ rows 6 on a kind of hopper, which in its lower part is connected to the developed the space formed behind the mechanized cleaning face, and the filling material 5 passing through the pipeline 5 into the bunker has the ability to go from the bunker part to the mined out space behind the mechanized roof support.

When moving mechanized lining 1 (in sections or in groups) from below

up, the backfill material moves in the worked-out space behind the mechanized roof support sections, in the form of an ellipsoid of outlet 7, the axis of which is parallel to the bottom line. The ellipsoid of outlet 7 is constantly fed by the stowing rocks coming from the bunker part of the mined space secured by the wooden lining 3. The ellipsoid of the outlet 7 is stored in the mined space behind the mechanized lining 1 until there is the filling material in the bunker part of the secured mined space by pipeline 5. The capacity of the bunker part must be such that there is enough filling material not less than a step of moving the powered roof support.

0

5

The advantage of the proposed method for laying the worked-out space over the known one is that during normal operation of the stope and timely supply of filling material in the worked-out space behind the mechanized roof support, no exposed roof is formed, the zone of movement of the filling material — the ellipsoid of release — when moving the powered roof support is much smaller than with the prism of sliding, and the exposure time is short-lived. All this helps to increase the stability of the roof both in the worked out space and in the working face, which ultimately leads to an increase in the efficiency of the complex mechanized working face.

Claims (1)

  1. SUMMARY OF THE INVENTION A method for laying a mined-out space behind a mechanized sewage treatment complex during steep seam excavation with long posts along a strike, including accumulation of filling material in a mine over a mining face and gravity transporting it over a movable fence of a mechanized roof support, characterized in that, in order to increase the efficiency of the laying due to reducing the degree of exposure of the roof when regulating the transportation of filling material, to accumulate the last bunker with a portable wall and an outlet is formed in the worked-out space in the upper part of the fixed mechanized cleaning casing, the filling material is sequentially fed and fed vertically for the mechanized lining at its boundary, while the capacity of the bunker takes at least the amount of worked-out space formed when moving mechanized lining on the step of movement.
SU894642782A 1989-01-30 1989-01-30 Method for filling gobs after powered mining complex in stoping steeply dipping beds by long stoop along the strike RU1789736C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU894642782A RU1789736C (en) 1989-01-30 1989-01-30 Method for filling gobs after powered mining complex in stoping steeply dipping beds by long stoop along the strike

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU894642782A RU1789736C (en) 1989-01-30 1989-01-30 Method for filling gobs after powered mining complex in stoping steeply dipping beds by long stoop along the strike

Publications (1)

Publication Number Publication Date
RU1789736C true RU1789736C (en) 1993-01-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU894642782A RU1789736C (en) 1989-01-30 1989-01-30 Method for filling gobs after powered mining complex in stoping steeply dipping beds by long stoop along the strike

Country Status (1)

Country Link
RU (1) RU1789736C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425454A (en) * 2011-09-22 2012-04-25 中国矿业大学 Construction method of walling and filling combined gob-side entry retaining wall body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425454A (en) * 2011-09-22 2012-04-25 中国矿业大学 Construction method of walling and filling combined gob-side entry retaining wall body

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