Method for breaking rock off face of mountain salt massif

FIELD: mining industry.

SUBSTANCE: method includes directing breaking hits along layer structure of salt massif. For this executing tool of machine is provided with necessary number of chisels, directed along layer structure of salt massif, chisels are rigidly held in parallel to layers and direction of hit is changes concurrently for all chisels by rotation of machine, reciprocal movement is applied to chisels in the way to make breaking hits in direction of salt massif along layer structure. Due to destruction of salt massif in direction of layer structure, above-lying pieces are broken off, and in a way to minimally damage layers themselves, and break off large pieces of massif without over-pulverization of ore.

EFFECT: higher speed of operation, higher efficiency.

1 dwg

 

The invention relates to the mining industry and can be used, for example, when drilling openings in the salt mountain range, the properties of which are associated with the lamination structure of rocks.

There is a method of blasting rock from the bottom of the salt massif, which includes the use of a rotary tool of the Executive body, where due to the rotation of the rotor of the combine with cutters destroyed a mountain range and is formed excavation (see Mountain encyclopedia./CH. editor Eaasy. - M.: Owls. Encyclopedia, 1989, volume 3, p.67-70).

The disadvantage of this method is the use of cutting processes for the layered structure characteristic of salt-arrays. Due to the cutting process of the destruction of the array occurs with the formation of large amounts of fines ore and salt dust. This increases the time of the destruction of the rock mass at the breaking of rocks from the bottom of the salt mountain array having a layered structure. Pereselenie bad for subsequent transport and processing of salt ore, especially consisting of sylvinite or carnallite.

There is a method of blasting rock from the bottom of the salt massif, including the drilling of the Executive body that forms in concentric array sabornie slit with subsequent cleavage of pillars, the OST is provided between them, where due to the rotation of the rotor-sabornie harvester destroyed a mountain range and is formed excavation (see Mountain encyclopedia./CH. editor Eaasy. - M.: Owls. Encyclopedia, 1989, volume 3, p.67-70).

A disadvantage of the known technical solution is that used concentric sabornie the cracks, which do not coincide in direction with the layered structure of the salt mountain array, so the subsequent cleavage of pillars left between the cracks occurs disagree (along, across, at an angle layered salt of the array), the result is the destruction of the array with the formation of large amounts of fines ore and salt dust. It's bad for the subsequent transportation and processing of salt ore, especially consisting of sylvinite or carnallite, and increases the time of the destruction of the rock mass at the breaking of rocks from the bottom of the salt mountain array having a layered structure.

Closest to the present invention is a method of blasting rock from the bottom of the salt massif, including the use of the machine hung on the levers shearing tools (for example, crowbars), hitting bottom at different angles, where to change the angle of attack on the breed shearing tool (e.g., scrap) according to the properties of rocks and property named is better breaking off pieces from it, compliance with the desired angle of the edges of the bottom and the depth of breaking off, apply the thrust rod (see A.S. No. 29448, CL E 21 27/28, dated 31 March 1933, only 3 pages).

A disadvantage of the known technical solution is that hanging on the levers shearing tools (for example, crowbars) are controlled by thrust rods that change the direction of the angle of impact on the breed, and the direction of the kick made according to the properties of rocks and in the direction of best of breaking off pieces from it, observing the desired angle of the edges of the bottom and the depth of breaking off, that is, either the man or the mechanism with sensors determines the direction of the blow, then turns control of the thrust rod, brings suspended on the levers shearing tools and then strikes. This increases the time of the destruction of the rock mass at the breaking of rocks from the bottom of the salt mountain array having a layered structure.

When a layered structure of rocks, for example, the salt massif there is equal distance between the layers and, therefore, there is no need to change the direction of the shot, and you'll need to set the number of shearing tools, according to the number of layers at a distance from each other according to the size of the layers, to change the direction of the strokes combine the Menno all shearing tools by turning, lifting or lowering of the whole machine.

The purpose of the invention is the acceleration of destruction of rock during the breaking of rocks from the bottom of the salt mountain array having a layered structure.

This is achieved by sending shearing bumps along the layered structure of the salt of the array. For this purpose, the Executive body of the machine provide the necessary amount of shearing tools aimed along the layered structure of the salt massif, rigidly fixed shearing tools parallel to the layers and change the direction of the shot all at the same time shearing tools turning machines, impart reciprocating motion of the shearing tools so that shearing blows applied in the direction of the salt of the array along the layered structure. Due to the destruction of the salt of the array in the direction of the layered structure is chipping overlying pieces and chipping occurs so that the minimum dissolved longitudinal layers, resulting in cracking of the larger pieces salt of the array and does not pereselenie ore. Thus, we have to increase the size of pieces and volume reduction of the fine ore fraction and dust in the thump of hands rock mass with destruction of the salt mountain range.

The drawing shows a method of blasting rock from the bottom of the salt Gornov the array (side view), showing: 1 - layered structure of the salt massif, 2 - shearing tools, 3 - drive elements reciprocating motion of scalinatella, 4 - transfer mechanism of the machine, 5 - frame of the machine on which fixed all units, 6 - remote control cars, 7 - operator's workplace machines, 8 - loader, 9 - location transshipment of ore in the vehicle 10 to the loading device 11 to the bottom of excavation.

Method of blasting rock from the bottom of the salt massif is as follows. Switch on the machine units from the workplace of the operator of the machine 7 through the control panel 6, provide navigation units car with frame 5 in the direction of the bottom 11 by the transfer mechanism of the machine 4, simultaneously by means of drive elements reciprocating motion 3 move the shearing tools 2, and cause shearing blows along the layered structure of the salt array 1 in the direction of the face 11, chipped off pieces of ore, fall under its own weight along the face 11 on the loading device 10, where they are loaded on the loader 8, which moves the pieces of ore to the place of transshipment of ore in the vehicle 9. Thus, speeding up the destruction of the rock mass at the breaking of rocks from the bottom of the salt mountain array having a layered structure

This method of blasting rock from the bottom of the salt mountain range runs stage of development work at the mine, the First mine OAO Silvinit on the layer of Cu-II, sylvinite composition having a relaxed layered structure.

Method of blasting rock from the bottom of the salt massif, including the use of the machine hung on the levers shearing tools, where strike at different angles on the breed shearing tools according to the properties of rocks and in the direction of best of breaking off pieces from it, observing the desired angle of the edges of the bottom and the depth of breaking off, characterized in that the direct shearing blows only along the layered structure of the salt array rigidly fixed shearing tools parallel to the layers and change the direction of the shot all at the same time shearing tools turning machines.



 

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