RU37386U1 - MINING FILTER FOR WATER CLEANING - Google Patents

Description

Mine filter for water purification

The utility model relates to the mining industry and can be used to treat water entering irrigation and fire systems in mines.

A known water purifier of irrigation systems, including a housing, a cover, nozzles for entering the nozzle, outlet and outlet of the purified water, a mesh filter and a rotator made in the form of a volumetric spiral tubular spring having radial holes directed to the housing and to the mesh filter ( CCC copyright certificate No. 1180530, class E 21 F 5/04, published in 1985, B. No. 35).

When the purified water moves along the rotator, large solid inclusions exit through the radial holes, hit the housing, lose kinetic energy and fall into the lower part of the housing, and small particles exit through the radial holes towards the strainer and are washed off by the water flow from its surface to the lower part of the housing . To remove solid inclusions and rinse the water purifier, a valve is provided at the bottom of the housing.

The main disadvantage of the known device is its unreliability due to clogging of the radial holes of the rotator and the strainer, as well as low productivity.

A device is known for separating granular materials in a liquid medium that differ in density or in the size of constituent particles, called the hydrocyclone (Mountain Encyclopedia, Volume 2, Moscow, Sovetskaya Encyclopedia Publishing House, 1986, S. 64-65). Hydrocyclones are widely used in various industries, for example, as classifiers, separators, water clarifiers, etc.

The hydrocyclone contains a housing, including a cylindrical part with a tangential supply pipe and a cover with a purified water outlet pipe and a conical part with a pipe and valve for unloading the settled sediment coat О05Ял1лЛ | йш 1. ,,, „

E 21 F 5/04

Tsiy. The principle of operation of the known device is that the fluid along the tangential nozzle enters the housing and twists. Under the action of centrifugal force, heavy and large fractions move to the wall of the body and slide along it into the lower part of the body, and the clarified liquid drops down, and then an upward flow is formed in the central part of the hydrocyclone, directed to the pipe to drain the purified liquid.

The main advantage of hydrocyclones is the ability to ensure high performance, however, there is a significant removal of fine fractions (up to 250 mg / l), and therefore, sequential treatment of the liquid is used by installing a battery of hydrocyclones. These devices are currently not used for purification of industrial water from impurities, since they do not provide a degree of purification to the requirements established by GOST.

A mine filter for water purification is proposed, including a housing containing a cylindrical part with a tangential nozzle for introducing purified water and a cover with a nozzle for draining purified water and a conical part with a filter washing valve located in the top of the conical part.

The difference is that the filter is equipped with a filter element congruent in shape to the housing with an internal cavity mounted coaxially inside the housing to form an annular gap decreasing to the top of the conical part of the housing, and the pipe for draining purified water is connected to the internal cavity of the filter element.

The difference is also that the filter is additionally equipped with at least one more similar casing with a filter element, the pipe for draining the purified water of the previous casing is tangentially inserted into the subsequent casing, the filtering element of which is made with a finer degree of purification.

a mesh can be used as a filtering element, while the degree of water purification is provided by selecting the mesh size of the mesh.

The proposed mine filter for water purification is reliable in operation and provides the required performance, i.e. it can be used both on general mine hydraulic lines and as a local or combine filter with a given degree of purification.

The essence of the utility model is illustrated by the drawing, where in FIG. 1 shows a general view of a shaft filter for water purification containing one or two stages of purification, in FIG. 2 is a plan view of the filter.

Mine filter for water purification contains a housing I, consisting of a cylindrical 1 and conical 2 parts. The cylindrical part has a cover 3 with a pipe 4 for draining purified water and a tangential pipe 5 for supplying purified water. The conical part of the housing has a valve 6 for the release of settled fractions and washing the filter. A filter element 7 is placed inside the housing and coaxially with it, congruent in shape to the housing, i.e. containing similar cylindrical and conical parts attached to the cover 3. As a filter element, a mesh with a given mesh size can be used. The filter element is placed in the housing with an annular gap decreasing from the cylindrical part to the top of the conical part (in f

in ). This is achieved by the fact that the taper angle of the filter element is chosen smaller than the taper angle of the housing, for example 15 ° and 20 °. Such a reduction in the annular gap is necessary to quench the kinetic energy of the swirling downward flow of water moving between the housing and the filter element.

The following is a description of the operation of the proposed device.

The purified water is fed into the housing I through a tangential nozzle 5. The water is twisted in an annular gap between the housing and the filter element 7, while heavy and large fractions under the action of centrifugal force move to the wall of the housing and fall down on it, and the swirling flow under the action of gravity moves down, losing kinetic energy. Water passes through the filter element into its internal cavity,

and small fractions settle on the surface of the element and are washed off in a descending stream. In the lower part of the housing, the flow energy is completely extinguished and an upward flow of purified water is formed through the end of the filter element, directed to the nozzle 4 for removal of purified water. According to this scheme, a single-stage filter works. The dimensions of the casing and the degree of purification depend on the pressure of the incoming water, the given capacity and the mesh size of the filter mesh. At one cleaning step, the mesh size is 0.3 mm, because with a smaller cell size in the first stage, their fast clogging occurs. To obtain a finer degree of cleaning, the filter must additionally contain one or more similar housings with filter elements having smaller mesh sizes (0.2 mm, 0.1 mm, etc.). To carry out the second stage of cleaning, the pipe 4 for draining purified water from the housing I is connected to the tangential pipe of the housing II, where the cleaning is carried out using a filter element with smaller cells than in the housing I. Other finer cleaning stages can be connected in a similar way.

As accumulation in the sediment casing opens valve 6 and discharges it from the casing with washing the filter element.

The mine filter for water purification has a simple design, is reliable in operation and allows to carry out the required degree of purification with high performance.

Claims (3)

1. Shaft filter for water purification, comprising a housing containing a cylindrical part with a tangential nozzle for introducing water and a cover with a nozzle for draining purified water and a conical part with a valve for washing the filter located at the top of the conical part, characterized in that it is equipped with congruent in shape to the casing by a filtering element with an internal cavity coaxially mounted inside the casing with the formation of an annular gap decreasing towards the top of the conical part of the casing, and a pipe for draining purified water from Connected to the internal cavity of the filter element. 2. The mine filter for water purification according to claim 1, characterized in that it is additionally equipped with at least one more similar housing in design with a filter element, and a pipe for removing purified water from the previous housing is tangentially inserted into the subsequent housing, the filter element of which is made with a finer degree of purification. 3. Mine filter for water purification according to any one of claims 1 and 2, characterized in that a mesh is used as a filtering element, while the degree of water purification is provided by selecting the mesh size of the mesh.