SU1035146A1 - Suction device for hydraulic transportation plant - Google Patents

Abstract

A SUCTION HYDRAULIC TRANSPORT DEVICE device containing a suction pipe covered by a shell with perforated make-up pat {) cuts and a bottom, characterized in that, in order to automatically maintain the given consistency and increase the speed of the device, the bottom of the hollow chambers and the bottom of the device, a hollow chambers, a hollow chambers, a hollow chambers, and a bottom, made by means of a hollow chambers make-up pipes are equipped with valves, the rods of which are fixed on the upper wall of the bottom. (L co 01 4; O5

Description

The invention relates to hydraulic transport and can be used, in particular, in mining and processing plants for feeding pulp to the pressure pipe.

A suction device of a hydrotransport installation is known, comprising a suction and feed pipes, between which a horizontal section of the suction pipe is located, having a receiving window in the lower part and an adjustment gate installed between the feed pipe and the horizontal pipe section [1].

The disadvantage of this device is its low speed.

Closest to the proposed device is a soil pump, including a suction pipe, enclosed by a shell with perforated make-up pipes, a bottom, a valve, and a control gate made in the form of a sleeve mounted on the suction pipe with the possibility of movement. In the suction zone between the suction pipe and the shell on which the perforated nozzles are fixed, a horizontal jumper with a hole is fixed rigidly, above which profile slots are formed in the housing [2}.

During the operation of such a device, a change in the consistency of the slurry can be determined by the readings of the instruments. When increasing or decreasing the consistency, the slide gate valves of the device must manually or mechanically open until the devices register the required consistency. The accuracy of controlling the consistency of the slurry and the speed of the device are insufficient, since the presence of devices introduces an additional error and the control system is inertial.

The aim of the invention is to automatically maintain a given consistency and increase the speed of the device.

This goal is achieved in that in a device containing a suction pipe covered by a shell with perforated make-up nozzles and a bottom, the latter is made in the form of a hollow chamber with an elastic upper wall, and the make-up nozzles are equipped with valves, the rods of which are fixed on the upper wall of the bottom.

The drawing shows the proposed device, General view.

The suction device is located in a sump 1 equipped with a tray 2 with a bottom valve 3 and contains a suction pipe 4 surrounded by a shell 5 and mounted coaxially on the bottom 6, the upper wall of which 7 is made of elastic material and its shape corresponds to the shape of the suction funnel. On the suction pipe 4 and the shell 5 are fixed make-up pipes 8, the upper part of which is perforated. Make-up pipes are equipped with valves 9, rods 10 ^{5 of} which are fixed on the upper wall 7 of the bottom 6.

The device operates as follows.

In the sump 1 of the tray 2 through the bottom valve 10 3 the pulp enters, the solid component of which settles at the bottom of the sump, and clarified water remains in the upper part of the sump. At the same time, the shell 5 protects the suction pipe 4 and make-up nozzles 8 from blockage with solid material. When the device is operating, solid particles located in the suction zone are captured by the water stream and transferred to the suction pipe 4. The water flow rate depends on the type of pumping unit that pumps the hydraulic mixture and the ²⁰ sizes of the suction device, which are selected so that the required water speed is ensured through the annular gap between the bottom 6 and the suction pipe 4. Under ₂₅ this condition, all solid particles in the zone of the suction funnel, in the form of which the upper wall is made days they are picked up by a stream of water and enter the suction pipe.

₃₀ With an increase in the concentration of the slurry, the suction height of the device decreases, and as a result, the supply of solid material decreases and its pressure on the bottom 6 increases. The elastic upper wall 7 of the bottom drops, entraining the stems 10 35 of the valves 9, which open the access of clarified water. The clarified water enters the make-up pipes 8 through their upper perforated part located in the clarified water zone. Due to the arrival of races ⁴⁰ into the device, the stroke of the slurry remains constant, and its density decreases until the load on the bottom 6 becomes equal to the initial one. In this case, the valves 9 will be closed and clarified water will cease to flow ₄₅ into the slurry zone.

The device allows you to automatically maintain a given hydraulic mixture consistency, provides speed and accuracy of regulation.

Improving the efficiency of regulation ⁵⁰ in the density of the slurry pumping systems provides optimum operation, resulting in significantly reduced power consumption to pump the slurry and the wear of the pumping equipment, increases its reliability and long govechnost ^s.

ВНИИПИ Order 5774/27 Circulation 673 Subscription

Branch of the PPP "Patent", Uzhhorod, st. Project, 4

Claims (1)

A SUCTION DEVICE FOR A HYDRAULIC TRANSPORT INSTALLATION, comprising a suction pipe covered by a shell with perforated make-up nozzles, and a bottom, characterized in that, in order to automatically maintain a given consistency and increase the speed of the device, the bottom is made in the form of a hollow chamber with an elastic upper wall, and the make-up nozzles valves whose stocks are fixed to the upper wall of the bottom. Yu '7