The way bookmarks exhaust chambers

 

The invention relates to the mining industry and can be used in underground mining with the mined-out space. The objective of the invention is the creation of productive way of hydrobalance exhaust chambers providing high quality water, high density filling mass and low energy costs on the rise of water from the mine. The way bookmarks exhaust chambers includes the installation of an isolation jumper with culvert elements and the flow of slurry into the chamber through the channel. Create a filter layer in the bottom of the camera. Diversion of water from the chamber is carried out from the upper part remote from the feed slurry, and the drainage of the backfill array is filtered with the release of water through the culvert elements. Diversion of water from the chamber may be made under the pressure of the column of pulp in the feed channel. The pulp in the chamber can be served on its Board. 2 C.p. f-crystals, 2 Il.

The invention relates to the mining industry and can be used in underground mining with the mined-out space.

There is a method of laying-out simple is a great space, drain water from parts laying space, remote from the feed slurry, dewatering, backfill array by filtering water through a flume elements, and the jumper is airtight and filter with drain Windows (see USSR author's certificate No. 1724894, IPC E 21 F 15/00, 1992).

The disadvantages of this method are the lack of clarification pour out the water due to the removal of the pulp particles through the drain open, slow draining of the array due to the lack of a filtering layer, and a low density backfill array.

Closest to the proposed solution is the way bookmarks exhaust chambers containing the installation of an isolation jumper with culvert elements, the flow of pulp in the chamber, creating a filtering layer in the lower part of the chamber, draining the water from the chamber and the drainage of the backfill array by filtering water through a flume elements, and the feed slurry and draining of water are alternately with technological pause, and discharge of water produced from surface laid bookmarks periodically, through the holes drilled in the height of the camera (USSR author's certificate No. 1218153, IPC E 21 F 15/00, 15/08, 1986).

The disadvantages of this method are low proizoditelnostyu - creating a productive way hydrobalance exhaust chambers, providing high quality water, high density filling mass and low energy costs on the rise of water from the mine.

This object is achieved in that in the method of the laying waste of cameras, including the installation of an isolation jumper with culvert elements, the flow of slurry into the chamber through the channel, the creation of the filtering layer at the bottom of the camera, the diversion of water from the chamber and the drainage of the backfill array filtering with the release of water through the culvert elements, the diversion of water from the chamber is carried out from the upper part remote from the feed slurry.

Another difference is that the diversion of water from the chamber is performed under pressure of the column of pulp in the feed channel.

The difference is that the pulp in the chamber serves on its Board.

In Fig.1 schematically depicts a proven camera with the adjacent portions of the array of rocks; Fig.2 - chamber with inlet and outlet channels.

The method is as follows.

All workings 1, having access to the treatment chamber 2, construct insulated jumper with 3 culvert elements (lower horizon). Down the channels 4 for feeding the pulp, which can be laid pipelines 5. Pulp, ky 2 and adjacent mines to jumper 3 create a filter layer 6 of larger fractions of the material. Then submit the pulp prior to complete filling of the chamber 2. Possible supply of pulp on Board camera. Diversion of water from the chamber 2 is carried out from the upper part remote from the feed slurry. In the process of moving the slurry from the inlet to the drain water is the deposition of particles from the chamber flows out already clarified water. The bookmark is carried out continuously until the complete filling of the chamber with the tailings. In the process of bookmarks, when completely filled with the pulp chamber, there is a seal formed part of the array tails, as under the weight of the slurry and filtering the water through the filter layer, it goes through a culvert elements jumpers. When pumping water from the level of its outlet from the chamber (upper chamber) the energy consumption is less than when the bypass water to lower horizons to mine dewatering.

For the reduction of energy consumption diversion of water from the chamber 2 is performed under pressure of the column of pulp in the feed channel 4 (Fig.2). The slurry is fed into the chamber 2 by filling the channel 4. To reduce speed in the channel 4 (Fig.2) the mixture, before entering into the chamber 2, thicken or set the damper speed. At steady state in filling channel 4 support column slurry, providing pressure, neon and light on the surface. This is possible due to the higher specific weight of the slurry relative to water. When filled channels 4 and 7 for filling the array generated in the chamber 2, effect of high pressure, sealing it.

Feed slurry on Board camera provides enhanced flow, reduced flow velocity of the pulp in the cell, which contributes to a better clarification of water.

That the diversion of water from the chamber is carried out from the upper part remote from the feed slurry, allows for high-quality water clarification, to ensure continuity of the process of bookmarks, and hence high performance. This reduces the energy consumption for lifting water from the mine, as the height is reduced by at least the height of the camera. Array formation occurs under the pressure of a water column with a maximum height equal to the height of the camera that provides a high density bookmarks.

Diversion of water from the chamber under the pressure of the column of pulp in the feed channel allows you to increase all of the above effects.

Claims

1. The way bookmarks waste cameras, including the installation of an isolation jumper with culvert elements, the flow of slurry into the chamber through the channel, creating filter the water through a flume elements, characterized in that the diversion of water from the chamber is carried out from the upper part remote from the feed slurry.

2. The method according to p. 1, characterized in that the diversion of water from the chamber is performed under pressure of the column of pulp in the feed channel.

3. The method according to p. 1, characterized in that the pulp in the chamber serves on its Board.

 

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