SU734064A1 - Settling tank for collecting and removing solid residues - Google Patents

Description

The invention relates to shipbuilding.

Known slop tank for separation and removal of solid residues with an inclined bottom, containing a pipeline for supplying and draining the flushing liquid, a heating system and an ejector installed at the bottom of the tank.

However, during operation, the settled liquid is sparged with air entering together with the flushing liquid through the supply pipe, which worsens the separation of oil from water and prevents the deposition of solid residues to the bottom of the tank. Solid residues deposited to the bottom form a mass that is difficult to completely remove by an ejector. .

The purpose of the invention is to increase the intensity of separation of solid residues from the washing liquid.

This is achieved by the fact that the sludge tank is equipped with a hydrocyclone separator and a working fluid supply pipe, the hydrocyclone separator being connected to the washing fluid supply pipe, the upper part of the hydrocyclone separator protruding above the washing fluid, and the working fluid supply pipe bottom of the tank and has nozzles. In addition, the hydrocyclone separator is cylindrical in shape, while the ratio of the length of the hydrocyclone separator to its diameter is 15:20, and the nozzles are directed to the ejector.

In FIG. 1 shows the proposed tank, an abundance of views; in FIG. 2 is a section AA of FIG. 1; in FIG. 3 is a section BB of FIG. 1.

The settling tank for separating and removing solid residues, made in the form of a tank 1 with a smooth inclined bottom 2, contains a flushing fluid supply pipe 3, a drain pipe 4, a hydrocyclone separator 5 connected to the flushing fluid supply pipe 3, the upper part hydrocyclone separator protrudes above the flushing fluid, heating system 6, ejector 7 supply of solid residues, installed at the bottom, the supply pipe 8! working environment (water or steam) installed in the lower part of the tank and having a nozzle 9.

The hydrocyclone separator consists of a housing 10, a nozzle 11 for supplying washing liquid and a grill 12,

The hydrocyclone separator is cylindrical in shape, while the ratio of the length of the hydrocyclone separator to its diameter is 15; 20, and nozzles 9 are directed to the ejector 7.

Slop tank works as follows.

Flushing fluid., Containing oil, solid residues and air, is supplied through a supply pipe 3 to a tank 1 through a separator 5. The fluid is supplied to a hydrocyclone separator through a tangentially located fluid supply pipe 11. In a hydrocyclone separator, the fluid is twisted, as a result of which its separation occurs. Air along the axis of the hydrocyclone separator rises upward and exits into the gas space, and solid residues at the periphery descend and accumulate at bottom 2. Separation of solid residues and oil from the washing liquid is facilitated by heating. The flushing fluid and the surfaced oil is removed from the tank through the drain line 4, solid residues settle to the bottom 2.

When removing solid residues. Ejector 7 to dilute them into the pipe 8 To the nozzles 9 is fed a working medium (water or steam).

The invention allows to improve the separation of solid residues, oil and air from the washing liquid, as well as to simplify the process of removing settled solid residues and to eliminate manual labor.

Claims (2)

The hydrocyclone separator consists of a body 10, a flushing fluid supply pipe 11 and a grate 12. The hydrocyclone separator is cylindrical, the ratio of the hydrocyclone separator length to its diameter is 15:20, and the nozzles 9 are directed to the ejector. The slop tank works as follows. The flushing fluid containing oil, solid residues and air is supplied through the supply pipeline 3 to the tank 1 through the separator 5. The liquid is supplied to the hydrocyclone separator through the tangentially located fluid supply pipe 11. In the hydrocyclone separator, the fluid is twisted, as a result of which it is separated. The air along the axis of the hydrocyclone separator rises up and out into the gas space, while solid residues around the periphery descend and accumulate at the bottom 2. Heating separates the solid residues and oil from the washing liquid. Wash liquid and the oil emerging from the tank through pipe 4 the drain, the solid residues are vented to the bottom 2. When removing the solid residues, the ejector 7 to dilute them into the pipe 8 to the nozzles 9 is fed a working medium (water or steam). The invention makes it possible to improve the separation of solid residues, oil and air from the washing liquid, as well as simplify the process of removing settled solid residues and eliminate manual labor. Claim 1: A sedimentation tank for separating and drying solid residues with a sloping bottom, containing a supply and discharge pipeline for a washing liquid, a heating system and an ejector installed at the bottom of the tank, characterized in that, in order to increase the intensity of separation of solid residues from the washing liquid, the tank is equipped with a hydrocyclone separator and a working fluid supply line, the hydrocyclone separator being connected to the flushing liquid supply line, with the upper part of the hydrocyclone th separator protrudes above the washing liquid, and supplying the working medium supply line is arranged at the bottom of the tank and a nozzle. 2. A slop tank according to claim 1, characterized in that the hydrocyclone separator is cylindrical in shape, wherein the ratio of the length of the hydrocyclone separator to its diameter is 15:20, and the nozzles are directed to the ejector.