SU767365A1 - Filling pipeline for transferring solidifying mix under gravity and air pressure conditions - Google Patents

Description

(5) MORTGAGE PIPELINE FOR TRANSPORTATION OF A HARDENING MIXTURE IN A CREAMING AND PNEUMATIC

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The invention relates to the mining industry and can be used in the underground mining of mineral resources with the laying of the developed space with hardening mixtures.

The backfill pipe is known for transporting backfill mixtures, including powering vertical and horizontal sections and a pneumatic ejector for injecting compressed air into the three duct in the horizontal section ij.

The disadvantage of this pipeline is the high consumption of compressed air and the complexity of the design due to its rupture in the areas of nejpexoAa from vertical to horizontal.

The backfill pipeline for transporting the hardening mixture is also known. In the daily-pneumatic mode, including the vertical and horizontal sections of the pipeline and the pneumatic ejector installed on the initial section of the horizontal pipeline to enter the compressed air p.

Such a pipeline has the following: drawbacks: the presence of a portion of gravity movement of transported backfill mixtures leads to blockage.

In practical work, the pangal energy of the bookmark pillar located in the vertical section of the pipeline is not used half. nosti; need to use | to pnevmotransporting exclusively the energy of compressed air supplied from a special source and the pressure of this pressure at 10 a distance or transport capacity of backfill mixtures; the ability to hang the backfill mixture in a vertical pipe mill; length

The purpose of the invention is to eliminate pipeline blockages and increase the range of transportation of the mixture.

20 The goal is achieved by the fact that the vertical section of the pipeline is provided with a loopback section of the pipeline, which is connected in series on. . the middle section of the vertical section of the pipeline, and the pneumatic injector for “water into the compressed air pipeline” is installed at the beginning of the loop section of the pipeline.

The drawing shows backfilling,

30 pipeline, general view.

The pipeline consists of a vertical section 1 of the pipeline, a loop section 2 of the pipeline, which is connected in series in the middle section of the vertical section of the pipeline with one end to the upstream vertical section 1 of the pipeline, and the other to the lower vertical pipeline section 3, which then goes into horizontal section 4 of the pipeline. A pneumatic injector 5 for introducing compressed air is installed at the beginning of the loopback section 2 of the pipeline.

The pipeline works as follows.

The hardening backfill mixture is supplied to the upper part of the pipeline section 1, which is in the order of 50100 meters. Then it enters the horizontal loop-shaped section 2. 25-50 m long, at the beginning of which a pneumatic injector is installed for continuous or periodic supply of compressed air under pressure of about 6 atm to the inside of the pipeline.

Under the action of the kinetic energy of compressed air, the continuous mixture dope is broken into individual dimensions. The length of the portions and the distance between them is governed by the amount of compressed air supplied or the duration of the period of exhaustion of air into the pipeline during its portion flow.

Let's add the portions of the mixture, divided; compressed air flow into the lower vertical section 3 of the pipeline.

In the lower section of the 3 vertical pipeline, compressed air, which was filled with the mix of the turn of the train, was worn with the turn of the turn of the car pipeline, with the exception of losses on its own mixing.

Uniform filling of a filling stream of a vertical section 1 and a batch flow of a filling mixture of a loop-shaped continuous flow

Section 2 and the vertical section 3 provide a stable movement of the mixture in a vertical pipeline, which is especially important when its total length is more than 500 m, and the absence of a horizontal pipeline section with gravity flow of the mixture increases the reliability of transportation. An increase in the transportation distance is achieved due to the additional increase in pressure of compressed air at the beginning of horizontal section 4, which occurs due to the use of a filling mixture in the vertical 5 part of the pipeline during pneumatic transport.

This eliminates the blockage of the pipeline and increases the trans-range. porting the mixture.

Claims (2)

1.V Tkin A.P. et al. Increasing the range of backfill mixes through pipes in gravity-pneumatic mode. - Mining Journal, №4, 1976, 5 s. 34-36. 2. Kravchenko V.P., Kulikov V.V. Application of hardening laying of deposits. M., Nedra, 1974, p.112-113. u 5 1-sk // | L; l y g /; Vl 71U g t and 1; / Ui-sh well Tst