SU1730470A1 - Plant for cleaning drain ditches - Google Patents

Abstract

The invention relates to the cleaning of sludge from the drainage grooves of mine workings. The goal is to increase the cleaning performance due to separate unloading of solid and liquid pulp fractions. The installation for cleaning the grooves contains a jet pump 1 and two tanks (B) 3 and 7. They are connected at the top and bottom by nozzles 10 and 11 and are equipped with pivotally attached bottoms 4 and 8. A filter element 5 is installed in front of nozzles 10 and 11. A depressurizing valve 9 is mounted in the lid B 7. A suction hose 12 is connected to the upper part B 3. The pulp is sucked in by the dilution of the pulp into element 5 into fractions. The solid fraction from B 3 is discharged into the trolley 13, and the water from B 7 is clarified, the 7th groove, 2 sludge. (Ls

Description

The invention relates to the mining industry and can be used to clean gutters, water tanks, brightening tanks, as well as ventilation ducts of shaft fans.

A known installation for removing harmful substances from liquid or solid media, comprising a water jet pump associated with a centrifugal pump, the suction inlet of which, as well as a water jet pump, are associated with a circulation tank that is equipped with a collection tank having a lid with a ventilating valve installed on it. valve and with intake; connected to the tank with a suction hose, and the valve is connected through a hose to a water jet pump. A disadvantage of the known installation is the complexity of the process of unloading liquid

or solid media from the collecting tank ,, which leads to a decrease in the performance of the installation.

The closest to the technical essence is a device for cleaning mine gutters, including a pneumatic ejector and a suction nozzle, equipped with a storage tank with a hinged bottom valve and a perforated shield installed inside it, with the storage tank in the upper part connected to the pneumatic ejector and suction nozzle , and the flap is set inclined towards the largest opening of the bottom flap.

The disadvantages of this device are limited scope due to the use of a pneumatic ejector to create a vacuum, low efficiency and low productivity of solid

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due to the low consistency of the sucked and unloaded pulp.

The aim of the invention is to increase the efficiency and productivity of work due to the separation of the pulp into solid and liquid fractions and automated separate unloading.

This goal is achieved by the fact that in an installation for cleaning gutters containing a jet pump with an active medium source, a storage tank with a hinged bottom and filter element and a suction nozzle, an additional tank with a hinged bottom and depressurizing valve is installed, while the additional tank connected to the storage tank in the upper and lower parts and separated by a filter element ..

The new interconnection of the jet pump, storage tank, additional tank and suction nozzle allows the pulp to be sucked in, separated into solid and liquid fractions and automated to unload them; solid into the vehicle, and the clarified water into the drainage groove.

FIG. 1 is a schematic diagram of an installation for cleaning gutters; FIG. 2 — node I in FIG. 1 (scheme of the depressurizing valve).

The installation for cleaning the drainage grooves contains a jet pump 1, a source of active medium 2, a storage tank 3 with a hinged bottom 4 and a filtering element 5, a suction nozzle 6, an additional tank 7 with a hinged bottom 8 and a depressurizing valve 9. Tank storage 3 and an additional tank 7 is connected in the upper part by a nozzle 10, and in the lower part - by a nozzle 11. To the storage tank 3 in its upper part an intake sleeve 12 is attached. The solid fraction of the material from the storage tank 3 is discharged into the car 13. Depressurization The choke valve (Fig. 2) consists of a body 14 and a sleeve 15 with holes 16, a cup 17 with holes 18 in the wall of the glass and holes 19 in the bottom of the glass, a rod 20 and a float 21.

The installation for cleaning the drainage grooves works as follows.

When the active medium is supplied from the source 2 to the jet pump 1 — the suction inlet nozzle b, in the additional tank 7 and through the upper nozzle 10 in the storage tank 3, a vacuum is created, through which a low consistency slurry enters the sleeve 12 and

it is separated by the filtering element 5 into solid and liquid phases.

Water from the storage tank 3 on the bottom

the pipe 11 enters the additional tank 7, gradually filling it, while the float 21 rises and moves the cup 17 upwards. When the holes 18 of the cup 17 coincide with the holes 16 of the housing 14

and bushings 15 from the atmosphere through the holes 19 in the bottom of the glass into the additional tank 7 and the storage tank 3 enters the air, as a result of which they are depressurized. Under the action of the mass of the contents, the pivotally attached bottoms 4 and 8 are opened, while solid material from storage tank 3 is discharged, for example, into trolley 13, and water from tank 7 is discharged into the drainage groove. After release

tanks 3 and 7 from the material and water float valve 21 is lowered, then the cycle of filling tanks 3 and 7 is repeated.

The use of the proposed installation for cleaning the drainage grooves in comparison with the known ones allows to obtain a technical and economic effect, expressed by the following indicators.

Constructive execution of the installation with additional capacity and depressurizing valve allows using not only a pneumatic ejector, but also a water-jet vacuum pump-hydraulic elevator to create a vacuum in the storage tank, which expands the scope of application of the installation. By

separating the pulp into solid and liquid phases and separate automated unloading of solid material into the trolley, and water into the drainage groove increases the plant capacity by 2-2.5 times.

The expected economic effect from the use of a single pumping installation in the conditions of the mines of the Karaganda basin is approximately 10 thousand rubles. in year. Pre-need for such

The units for the unification of Karagandaugol in 1990 amounted to 20 pcs.

Claims (1)

The invention The installation for cleaning drainage grooves, comprising a storage tank with a suction nozzle, a filter element and a hinged bottom, as well as a device for creating a vacuum in the tank, characterized by that, in order to increase the cleaning performance due to separate unloading of solid and liquid fractions of the pulp, it is equipped with an additional tank with a hinged bottom and depressurizing valve, while the additional tank connected to the top and bottom of the storage tank by means of nozzles, and the filtering the element is installed in the storage tank in front of the connecting pipes.