SU1579524A1 - Apparatus for purifying drilling mud - Google Patents

Abstract

The invention relates to the mining industry, in particular to the cleaning of drilling fluids from sludge. The aim of the invention is to improve the quality of cleaning by periodically changing the direction of pumping. The device contains a base on which a housing with a pallet and a discharge device with a screw and a flap is installed on the vibration mount. The housing has a cover with openings in which filter cartridges are placed, and above them are pistons with rods connected by a rocker to an exciter. The inlet is located below the cap level. The vibroactivator through the rocker acts on the pistons, the movement of which stimulates the flow of the solution through the cassettes. In this case, the precipitated sludge is transferred to the discharge device and held there until the shutter opens. 1 hp f-ly, 2 ill.

Description

The invention relates to the mining industry, in particular to the cleaning of drilling fluids from sludge.

The purpose of the invention is to improve the quality of cleaning by periodically changing the direction of pumping.

FIG. 1 shows the proposed device, side view; in fig. 2 - the same, top view.

The device includes a base 1, on which the vibration mount 2 has a housing 3 with a pallet 4 connected by a corrugated pipe 5 with a discharge device in the form of a pipe 6 with a lid 7 and a screw 8 with an engine 9 and an end coil 10, the direction of which is opposite to the direction of the main turns of the screw. In the case above the tray 4 is made inlet 11 with the flange. Above the nozzle 11 is installed the cover 12 with square

openings in which filter cartridges 13 with mesh partitions are placed, 14 and sides 15, within which pistons 16 with rods are installed, connected to the rocker 17. The beam 17 is pivotally connected to the central support 18 mounted on the cover 12. In the body sides above the cover 12 is made drain hole with the tray 19. The yoke 17 is connected to the exciter 20, powered by the engine 21, which are placed on the bracket 22 of the housing.

The device works as follows.

The flange of the inlet 11 is connected to the pipeline, which drains the solution from the well. After the solution is supplied to the device, the engine 21 of the vibration exciter 20 is turned on. In this case, the beam 17 starts to perform reciprocating rotational motions around the hinge of the support 18, raising

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nU and lowering pistons 16. The liquid phase of the solution, cleared of sludge, when passing through the sieve 14, flows through the beads 15 and flows along the chute 19 into a sump or tank. In the process of operation of the vibration exciter, the housing performs high-frequency oscillations on the vibration supports 2. Together with it, the solution in the tray 4 and the mesh partition 14 with the cassettes 13 oscillate. The pistons 16 move under the action of the rocker arms 17 and move the solution mass in the tray 4, pumping the solution through mesh partitions 14 in one cassette 13, then in another. This improves the degree of purification of the solution, as in the process of vibration treatment the viscosity of the solution decreases. The precipitated sludge through the pipe 5 enters the discharge device, where it is held in pipe 6 by a lid 7. When the screw 8 rotates, the sludge is squeezed out of the pipe 6. Retention of the percolating liquid phase of the solution in the pipe 6 is facilitated by coil 10, which forms in the pipe 6 a sludge seal that prevents the flow of fluid, but with rationally selected coil 10 and the blades of the screw 8 discharge device passes only the solid phase.

Placing the pistons, connected in pairs by the rocker with the vibrator, in compartments communicating with the common pallet above the filtering elements and installing the pan onto the vibrating supports allows the solution to repeatedly pump the solution through the filtering elements during the movement of the pistons, and the process energy consumption is lower than in the case of insulated compartments.

Placing the inlet and outlet nozzles below and above the filter elements, respectively, allows large particles of sludge to be cut off by simply pumping the solution through the device.

Supplying the unloading screw with an end turn opposite to the direction of the main winding blade allows creating between the coils a stuffing gland seal that reduces the pressure of the pulp on the unloading cap.

Claims (2)

1. A device for cleaning drilling fluid, comprising a housing, filtering elements with pistons with rods arranged in pairs connected by a rocker with an exciter, inlet and outlet nozzles placed respectively below and above the filter elements, discharge unit, characterized in that, in order to improve the quality of cleaning by periodically changing the direction of pumping, it is equipped with a pallet , connected to the lower part of the body, with a central support and vibro supports, while the rocker arm is pivotally connected to the central support, the body is installed on the vibrating supports, into the unloading the assembly is designed as an auger located in a pipe with a lid communicating with the pallet by means of 0 corrugated pipe. 2. The device according to claim 1, characterized in that the last turn of the screw is made with the direction of twisting opposite to the direction of the main turns of the screw. 0 Phi2.1 1 12 15 16 17 18 FIG. 2