RU160668U1 - WATER TREATMENT DEVICE - Google Patents

Abstract

A water purifier, comprising a cylindrical conical bottom body loaded with contact weighed mass, a clarification water supply pipe connected to the conical bottom of the body, an ejector for supplying contact mass through the pulp supply pipe to the upper part of the body, a pipeline with a shutter for connecting the lower part the device body with a pulp feed ejector, characterized in that the water purification device is equipped with annular pipelines of peripheral collection and removal of clarified and flushing th water in the upper housing part, a distribution system consisting of several slotted ring conduits which are disposed at different levels in the conical part of the housing and equipped with valves for regulation of water flow through the annular conduit.

Description

The utility model relates to the field of reagent treatment of natural and wastewater.

A known analogue of a device for water purification (RF patent No. 2307075, class C02F 1/52: publ. 05/10/2007, BI No. 27). The device contains a cylindrical conical bottom body loaded with contact weighed mass, a clarifying water supply pipe, a pulp ejector through a tangential pulp supply pipe to the upper part of the body, a diaphragm in the form of a reverse truncated cone, a collection chute with bleed and wash water discharge pipes, a conical thin-layer module, semi-submersible cylinder, air ejector of tangential pulp introduction into the semi-submersible cylinder, air separator, in the middle of which there is a single pipeline for supplying water for clarification, and in the lower part there is a lowering distribution pipe, moreover, the conical rings of the thin-layer module are made with diameters decreasing towards the center and are located at the same level, the semi-submersible cylinder is located inside the thin-layer module outside the lowering distribution pipe, and the pulp ejector is connected to the bottom of the device through the pipeline.

The disadvantages of the design of the existing device are the difficulty in implementing pressure filtering during the distribution and selection of water through the collection chute, the high consumption of clean water for flushing the contact mass, the uneven distribution of water over the entire filter area due to the design of the lowering distribution pipe.

A device for water treatment is known (RF patent No. 2183590, class C02F 1/52 // C02F 103: publ. 06/20/2002, BI No. 17 - prototype). The device comprises a cylindrical conical bottom body loaded with contact weighed mass, a clarification water supply pipe connected to the conical bottom of the body, an ejector of pulp supply through a tangential pulp supply pipe to the upper part of the body, a diaphragm in the form of a reverse truncated cone, a collection chute with discharge pipelines clarified and wash water, the casing has in the upper part above the diaphragm a conical thin-layer module attached to a semi-submersible cylinder, an air ejector p the tangential entry of the pulp into the semisubmersible cylinder below the water level at an angle to its surface, connected to the tangential pulp supply pipe, in the lower part - the annular slotted tubular distribution system of the clarified water connected to the clarification water supply pipe.

The disadvantages of the design of the existing device are the difficulty of implementing pressure filtering during the distribution and selection of water through the collection chute, the high consumption of clean water for flushing the contact mass, reducing the use of the volume of contact mass when cleaning water in the conical part of the device.

The technical task of the claimed utility model is the implementation of the pressure mode of operation, reducing the consumption of pure water for washing the contact mass and increasing the productivity of the device for water purification, due to more complete use of the contact mass in the conical part of the device.

The problem is solved in that the water purification device comprising a cylindrical conical bottom body loaded with contact weighed mass, a clarification water supply pipe connected to the conical bottom of the body, an ejector for supplying contact mass through the pulp supply pipe to the upper part of the body, pipeline with a shutter for connecting the lower part of the device casing with the pulp feed ejector, according to a utility model is equipped with annular pipelines of peripheral collection-discharge water and flushing water in the upper part of the casing, a distribution system consisting of several slotted annular pipelines that are located at different levels in the conical part of the casing and are equipped with valves for regulating the flow of water through the annular pipeline. The peripheral collection and drainage of clarified and rinsing water allows the pressure mode of the device to be implemented, and the introduction of a distribution system consisting of several slotted annular pipelines makes it possible to use the entire contact mass for water purification, including the volume located in the conical part of the device, which may result in an increase in the duration inter-regeneration period of the device. In addition, this design of a water purification device allows to reduce the flow of clean water for washing the contact mass due to the use of raw untreated water as a washing water during ejection washing, due to which the bulk of the contaminants are washed out of the contact mass, therefore, at the final stage of washing, less the volume of clean wash water supplied through an annular distribution system.

In FIG. 1 shows a general view of a water purification device. In FIG. 2 is a section along AA, in FIG. 3 - a section along BB.

A water treatment device includes a cylindrical body 1 with a conical bottom, a contact weighed mass 2, a clarification water supply pipe 3, a wash water supply pipe 4, a distribution system 5 consisting of several slotted annular pipelines, a valve 6 for controlling the flow of water through pipelines of the ring distribution system, the clarified water drainage pipe 7, the wash water drainage pipe 8, the annular pipelines of the peripheral collection-discharge of clarified and wash water 9, a pipe rovod supplying washing water to the ejector 10 pulp feed 11, the feed pipe of the pulp to the upper part of the housing 12, the contact line 13 Product weighed weight of the device, a conduit 14 connecting the ejector to the bottom part of the device, the shutter 15 for controlling the supply of the contact mass in the ejector.

A device for water purification works as follows. Through the water supply pipe for clarification 3, the source water treated with reagents is supplied to the annular distribution system 5, is evenly distributed over the area of the clarification zone of the device when controlling the flow of water for each slotted annular pipeline of the distribution system 5 due to valves 6. Next, the purified water passes from bottom to top through the layer of contact mass 2 with a speed that ensures its weighing. As the contact mass, quartz sand or any other fine-grained material that meets the requirements for mechanical strength and chemical resistance is used. By increasing the volume concentration of the solid phase in the suspended layer, the contaminants in the water are adsorbed by the grains of the suspended contact mass and a precipitate is formed in the layer, which itself is a sorbent for water impurities. As a result, a high effect of water purification is achieved, a decrease in the consumption of reagents, and the productivity of the device is increased. The clarified water is collected by annular pipelines of the peripheral collection of clarified and wash water 9 and is discharged by a pipeline 7 from the device. After the protective action time of the weighed contact mass expires and the quality of the clarified water deteriorates, the contact mass is flushed in the following sequence. The valves are closed on the water supply pipeline for clarification 3 and on the clarified water discharge pipeline 7. The valve on the wash water discharge pipeline 8 opens. A shutter 15 is opened on the pipe 14 connecting the pulp feed ejector 11 with the lower part of the device body and a valve on the supply pipe 10 to the wash water ejector. Wash water is supplied to the ejector 11. Both clean and raw water supplied to the treatment can be used as wash water. Contaminated contact weighed mass in the form of pulp through a pipe 14 from the lower part of the device is sucked into the ejector of the pulp 11, transported to the upper part of the device through the pipe 12. The contact mass entering the ejector 11 is controlled by a shutter 15. Significant friction occurs during transportation of the pulp particles of contact mass against each other, which allows you to effectively remove sediment from the contact mass. The washed grains of the contact mass are deposited in the contact mass layer, and the precipitate is collected by the circular pipelines of the peripheral collection of clarified and wash water 9 and is discharged by the wash water pipeline 8. After washing, the valve on the pipe 10 and the shutter 15 are closed. 11. Then the valve 4 opens on the pipeline for supplying washing water to the device for water purification and the final washing of the contact weighed mass is carried out with clean water, washing water is produced as well as during the first rinse. After washing, the valves on the pipelines 4, 8 are closed and open on the pipelines 3, 7, after which the water purifier continues to purify the water again. Contact weighed mass is used repeatedly in the process of water purification. If it is necessary to replace the contact weighed mass or empty the device for water purification, the pulp is discharged from it through a pipe 13.

The pilot plant included a water purification device structurally corresponding to the above drawing. The water purifier was loaded with fine sand from crushed burnt rock. Water clouded with powdered activated carbon with a particle size of up to 10 μm. Was supplied to a water purifier and, in an upward motion, weighed a layer of contact mass. When moving from bottom to top, water clarified in a suspended layer of contact mass. At the same time, in the contact mass layer, the main share of coal particles was removed from the water to the norms for using water for production needs.

The use of the inventive device for water purification allowed to increase the duration of the inter-regeneration period of the filter apparatus. At the end of the 16-hour filter cycle, the contact mass was subjected to ejection washing with the source water supplied for cleaning. As a result, most of the contaminants were washed out from the intergranular space of the contact mass and discharged together with the wash water, while the formation of stable conglomerates from contaminants and grains of the contact mass was prevented. Next, the final washing of the contact mass was carried out with the supply of clean water through an annular distribution system with an intensity of 18 l / s · m ² . Since the ejection flushing was preliminarily carried out, a final flush lasting no more than 3 minutes was required, due to which the flow rate of pure flushing water was less than that of similar devices for water purification.

Thus, the device for water purification allows you to get a high effect of clarification of water in the suspended layer of the contact mass with an increase in the duration of the filter cycle, to perform effective washing and reuse the weighed contact mass. In addition, the pressure design of the device leads to a reduction in construction volumes, which is especially true in rooms with insufficient height, where it is not possible to use pressure-free devices for water treatment.

Claims (1)

A water purification device comprising a cylindrical conical bottom body loaded with contact weighed mass, a clarification water supply pipe connected to the conical bottom of the body, an ejector for supplying contact mass through the pulp supply pipe to the upper part of the body, a pipeline with a shutter for connecting the lower part the device body with a pulp feed ejector, characterized in that the water purification device is equipped with annular pipelines of peripheral collection and removal of clarified and flushing th water in the upper housing part, a distribution system consisting of several slotted ring conduits which are disposed at different levels in the conical part of the housing and equipped with valves for regulation of water flow through the annular conduit.

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