RU2006474C1 - Oil-containing sewage cleaning plant - Google Patents

Abstract

FIELD: cleaning equipment. SUBSTANCE: plant has a water intake chamber, a dust catcher made in the form of a truncated cone to which smaller base a rotatable ripper is fastened, a separator, a sorption media filter unit and a cleaned water reservoir which are connected in series by pipelines. The separator is made in the form of a cylindrical chamber with a cover and is parted by a blind partition, which is in a spaced relation to the cover, into two halves. Cylindrical channels are made in one of the halves, and semi-rings are vertically staggered on the other half. A horizontal perforated partition is mounted over the conical part. EFFECT: improved structure. 4 cl, 3 dwg

Description

 The invention relates to techniques for purifying wash water from a solid phase and liquids immiscible with it to obtain reverse water supply. The installation in the form of a local treatment plant is also designed to improve the environmental situation at industrial enterprises.

 The purpose of the invention is to increase the efficiency of cleaning wash water.

 In FIG. 1 shows the installation of a sewage treatment plant, including a submersible sand pump 1, a dirt trap 2, a dirt trap 3, a separator 4, a filter - adsorber 5, a hydraulic accumulator 6, a discharge pump 7; in FIG. 2 - installation unit for the treatment of oily wastewater containing a dirt trap and a dirt collector; in FIG. 3 - installation unit - separator.

 The oil-containing wastewater treatment plant contains a water inlet chamber with a submersible pump 1 connected in series with pipelines, a dirt trap 2 made in the form of a reverse truncated cone, to the smaller base of which a storage pipe 8 is mounted, located above the dirt collector 3, and a ripper 9 mounted therein for rotation and made in it in the form of a wave traction attached to an electromagnet, the separator 4, mounted behind the mud trap 2, made in the form of a cylinder-conical chamber with a cover, cyl the indigenous part of which is divided by a vertical blank partition 10, not reaching the lid, into two halves, in one of which vertical cylindrical channels 11 are made, in which the ratio of the diameter to its length is 1: 25, and the other has half rings 12 staggered vertically, and above the conical part of the chamber there is a horizontal perforated partition 13 equipped with deflectors, a filter unit 5 with sorption loading, a tank 6 for purified water (hydraulic accumulator) and a discharge pump 7.

 Installation works as follows.

 The initial wash water containing oil products in the form of films, spots, hydrolytic conversion products, soluble oil products and a coarse solid phase enters the water intake chamber, from where it is fed by a submersible pump 1 to the mud trap 2, made in the form of a reverse truncated cone, through the supply pipe. The flow (pulp) is fed tangentially and forms a water funnel in the cone. As solids move to the lower part of the cone with decreasing radius, the particle velocity increases and reaches a maximum value in the lower part. In this zone, under the action of centrifugal force, an intensive separation of the liquid and solid phases occurs. The solid phase fills the accumulation pipe 8 installed above the dirt collector 8. As it is filled, sludge is unloaded. To do this, the submersible pump is turned off. The inclusion of an electromagnet open the locking device of the drive. In this case, the cultivator 9, made in the form of a corrugated rod attached to an electromagnet, loosens the slag in the storage pipe 8, and under the influence of the remaining water in the cone it is unloaded into the dirt collector 3. Under the action of the return spring, the opening of the locking device closes, after which the submersible pump. The water that has passed the first stage of purification is poured over the edge of the cone into the drain chamber, and then gravity fed to the inlet of the separator 4, where fine sludge (0.3 mm), the insoluble part of oil products and water containing water-soluble components of oil products are separated. Water enters the separator 4 tangentially to the generatrix of the cone. The water flow swirls, solid particles under the action of centrifugal forces, describing a tapering spiral along the inner surface of the cone, accumulate in its lower part. A deflector mounted on a horizontal perforated partition 13 cuts off the upper part of the flow and directs it through the hole in the partition into the flow blocking channel 11. When passing through the channel block, the flow becomes laminar. In the upper part of the chamber, water and oil products are separated. Oil products are collected at the top of the chamber and periodically removed. The water separated from the oil products passes through the labyrinth of the chamber, consisting of oil semicircular semicircles 12, where microscopic drops of oil products from 60 microns and less are captured, and then to the exit from the chamber. Purified water is supplied through the lower fitting to the filter unit 5. Passing through the sorption loading of the filters, the water is finally purified from mechanical impurities and suspensions. Finally, purified water through the upper pipe enters the accumulator 6, from where it is pumped for household needs by pump 7.

 The use of this installation significantly increases the degree of purification of wash water. The quality of the recycled water far exceeds the requirements for process water. (56) 1. USSR author's certificate N 1662941, cl. C 02 F 1/40, B 01 D 17/02, 1989.

 2. Copyright certificate of the USSR N 850597, cl. C 02 F 1/40, 1979.

Claims (4)

 1. INSTALLATION FOR CLEANING OIL-CONTAINING WASTE WATERS, comprising a water inlet chamber with a submersible pump, a dirt trap with a dirt collector, a filter unit with a sorption charge and a purified water tank, which is characterized in that, in order to increase the efficiency of cleaning wash water, it is equipped with a separator installed between the filter block and the mud trap, made in the form of a cylinder-conical chamber with a cover, the cylindrical part of which is separated by a vertical blank partition, n reaching the lid, in two halves, in one of which vertical cylindrical channels are made, and in the other half rings are installed in a checkerboard pattern vertically, and a horizontal perforated partition is installed above the conical part of the chamber and the dirt trap is made in the form of a reverse truncated cone, to the smaller base of which a pipe located under the dirt collector with a ripper mounted in it with the possibility of rotation is attached.  2. Installation according to claim 1, characterized in that the cultivator is made in the form of a wavy rod attached to a magnet.  3. Installation according to claim 1, characterized in that the perforated baffle of the separator is equipped with deflectors.  4. Installation according to claim 1, characterized in that the ratio of the diameter of the cylindrical channel to its length 1: 25.

Images