SU1574258A1 - Mixer for purifying water - Google Patents

Abstract

This invention relates to mixers for water purification. The purpose of the invention improves the efficiency of the mixer by improving the conditions for the turbulence of the water flow and the elimination of stagnant zones. The mixer comprises a rectangular housing with water inlet and outlet connections. A rotating shaft with blades, the axes of which are mutually perpendicular, is transversely mounted in the housing. The shaft is provided with rods with limiters located crosswise on it. A vane is mounted asymmetrically about its axis on each rod, with the possibility of moving along it between the limiters. The blade is made in the form of an S-shaped float with a groove in the end. The insert is connected by means of a spring to the blade and is placed in the groove. The blades are spring loaded from the side of the limiter closest to the shaft. 1 hp f-ly. 3 il.

Description

WITH

with

The invention relates to the purification of water, mainly natural and waste water, and is intended for mixing and mixing the treated water with reagents (coagulants, flocculants).

The purpose of the invention is to increase the efficiency of mixing liquids by improving the conditions for flow turbulization and the elimination of stagnant zones.

Figure 1 presents the proposed mixer, a general view; figure 2 - section aa in figure 1; in fig. 3 - section bb in fig. 1.

The device consists of a rectangular casing 1 with feed inlets 2 and removal of 3 water. The shaft 4 is rotatably mounted inside the housing 1. The shaft 4 can be placed on bearings or in semicircular or cylindrical grooves 5, made on the side walls of the housing. Mutually perpendicular rods 6 with stops 7 and 8 are mounted on shaft 4.

The blades 9 are mounted on rods x 6 with the possibility of axial movement between the limiters 7 and 8 and are spring-loaded from the inside by springs 10. The blades 9 are made in the form of S-shaped floats and fitted on the rods 6 by through holes 11, located asymmetrically relative to S- shaped section. At the ends of the S-shaped blades 9, grooves 12 are made, in which light inserts 14 are mounted on the springs 13 in the form of plates, the size of which is chosen such that at maximum removal from the slots 12 and rotation of the rods they come into mechanical contact with the walls of the housing.

The proposed device works as follows.

At the initial moment, the device filled with water is in a static state. The source water through the pipe 2 enters the housing 1, and then after

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the treatment is removed through 1 socket 3. Under the action of hydrodynamic pressure, the blades 9 rotate relative to the rods b on which they are located, and the shaft 4 rotates with the rods 6 and blades 9 located on it. Rotation is caused on one side by the shape of the blades 9 and the asymmetry of the arrangement of the holes 11 in the blades x 9, which is associated with the appearance of different-sized areas of pressure, and on the other hand the location of the nozzle 2 above the nozzle 3, which leads to an additional hydrodynamic effect on the blade 9, located due to the low weight at the top of the vertical rod 6. The springs 10 and the stops 7 and 8 prevent the blades 9 from coming closer to the distance on which their collision is possible. The inserts 14, when mechanically contacting the walls of the housing 1, are pushed into the grooves 12 when the springs 13 are compressed. Lastly, uncoupling, they push the inserts 14 out of the grooves 12 after the inserts 14 have stopped contacting the walls of the housing 1.

When using S-shaped floats located asymmetrically on the axles, there are always different pressure areas and therefore the total torque, which ensures the maintenance of rotation of the floats during operation of the mixers.

In addition, the S-shaped floats create conditions for the formation of non-linear elementary streams along their

 ; BUT/

surface, which contributes to the mixing of water in the stream.

This mixer ensures uniform mixing of the coagulant and water solution in the entire volume of the housing without stagnant zones, which increases the efficiency of the process.

Claims (2)

Claims 1. A water purification mixer comprising a rectangular cross-section body with water supply and discharge connections, in which a rotating shaft is mounted transversely with blades, the axes of which are mutually perpendicular, having inserts of a material lighter than water, from so that, in order to increase efficiency by improving turbulence in the flow of water and eliminating stagnant s, the shaft is equipped with rods located on it cross-shaped with limiting rods on each rod asymmetrically relative to its axis Credited blade movable along the rod between the limiters configured as a float S-shaped cross section with a groove in the end face, wherein the insert is coupled by a spring with the blade and is placed in the recess and biased by the blade nearest slicer to the shaft. 2. The mixer according to claim 1, characterized by -. due to the fact that the source water inlet pipe is located above the outlet pipe at the opposite wall of the housing.  . BUT 7 Јfs ten 15 20 25 thirty .G LA M ± ///////// 7 // U // 7/7 ////// ///, / 7 /////// U / // 7 ///// 7 // /// 7, FIG. 2