RU43192U1 - STRUCTURED LIQUID MIXER - Google Patents

Abstract

The utility model relates to the field of construction equipment, namely, devices for the preparation of bitumen compositions, drilling fluids and in the chemical industry. The objective of the utility model is the rapid and deep destruction of the coagulation structure of the liquid in the entire volume of the medium, uniform mixing and maintaining the liquid in a destroyed state for a sufficiently long time by successively repeatedly passing all the liquid through dispersants. The mixer consists of two identical vessels 1 and 2, suction lines 3 and 4, distribution valves 5 and 6, the synchronizer of the valves 7, the suction pipe 8, the high pressure pump 9, the discharge pipes 10, the drain valve 11, the discharge lines 12 and 13 , primary dispersant 14, secondary dispersant 15, drain line 16 and reservoir 17. The device allows you to destroy the coagulation structure of absolutely the entire liquid up to the molecular level, evenly mix it and repeatedly accelerate the flow of chemical their reactions by repeatedly passing the entire fluid through dispersants.

Description

The utility model relates to the field of construction equipment for the preparation of bitumen compositions and can be used: in drilling equipment for the preparation of drilling fluids, in the chemical industry for fine dispersion and activation of reactive substances, and in many other cases when high dispersion and high uniformity of component distribution in the entire volume of the batch.

Turbulent mixers are known (Shterbachek 3., Tausk P. Mixing in the chemical industry. Transl. From Czech. L .: Goskhimizdat, 1963, 371 p.) Consisting of a cylindrical tank in which a disk with blades is located cantileverly on the drive shaft - a turbine wheel .

However, turbulent mixers have the following disadvantages: dispersion is carried out at the exit of the turbine wheel in a sufficiently large volume of the tank with a very low specific energy impact and then the liquid is distributed throughout the entire volume of the batch, mixing with the original, non-dispersed medium. During the circulation of the mixture, some particles of the medium will repeatedly pass through the active zone, while other particles may never pass through the active zone; in addition, medium mixing and mass exchange between the upper and lower chambers are slowed down. In the presence of peripheral stagnant zones with a low circulation rate of the medium, complete and deep destruction of the coagulation structure of the entire liquid can be achieved only in a very long mixing time.

Of the known technical solutions, the closest in technical essence to the claimed object is the device according to the patent of A.S. USSR No. 1152636 B 01 F 5/16 1983

This device contains a reservoir in which the drive turbine is located, dispersing reflectors are located at the turbine wheel outlet, liquid from the bottom of the reservoir is taken by the pump and fed to the turbine wheel inlet.

However, this device has the following disadvantages: dispersion is carried out on the periphery of the turbine wheel in a relatively large volume with low energy indicators, the installation of an additional circulation pump does not exclude stagnant zones, which leads to an increase in the time of complete dispersion and uniform mixing.

The objective of the utility model is the rapid and deep destruction of the coagulation structure of the liquid in the entire volume of the medium, uniform mixing and maintaining the liquid in a destroyed state for a sufficiently long time by successively repeatedly passing all the liquid through dispersants.

The specified technical result is achieved by the fact that the mixer for mixing structured liquids, consisting of two identical vessels, while in the lower part of each vessel there are full-flow dispersants connected by pipelines and distribution valves to the high pressure pump, and the distribution valves are interconnected by synchronizers .

When the pump is running, liquid from one vessel is pumped to another vessel through a dispersant (centrifugal nozzle); when the liquid moves through the dispersant, the following occurs: intensive destruction of its coagulation structure, a decrease in the structural viscosity of the liquid, its thin

dispersion and mixing is the first stage of the cycle. When switching the dispensing valves to the second position, the pump pumps the liquid from the second vessel to the first one, all the liquid passes through a similar dispersant in the first vessel and there is a secondary, additional destruction of the coagulation structure of the liquid, a decrease in the structural viscosity, finer dispersion and uniform mixing - the second stage cycle.

For each cycle, all fluid undergoes two-stage activation. The principal difference of this device is the use of two vessels with dispersants, dispensing valves and a high pressure pump, which allows dispersion and mixing in continuous operation by successively displacing the liquid from one vessel to another through dispersants, which determines the compliance of this solution with the “novelty” condition.

Comparison of the claimed device with other technical solutions shows that a mixer is known, containing a vessel with a drive turbine, at the exit of the turbine wheel there is a stationary reflector-dispersant, liquid from the lower part of the vessel is taken by a circulation pump and fed to the turbine inlet (A.S. USSR No. 1152636 B 01 F 5/16 1983) .;

However, such a mixer does not provide a high level of energy transfer to the mixed medium and does not exclude the formation of stagnant zones along the peripheral part of the bottom of the vessel. All this reduces the intensity of the destruction of the coagulation structure of the mixed liquids and reduces the homogeneity of the mixture, while the inventive mixer provides a new property - sequential multiple passage of the entire liquid through dispersants with high energy performance, destruction of the liquid structure up to the molecular level, high

homogeneity of mixing. This allows us to conclude that the technical solution meets the criterion of "inventive step".

The utility model is illustrated by the attached drawing, where figure 1 shows the functional diagram of the mixer.

The mixer consists of two identical vessels 1 and 2, suction lines 3 and 4, distribution valves 5 and 6, the synchronizer of the valves 7, the suction pipe 8, the high pressure pump 9, the discharge pipes 10, the drain valve 11, the discharge lines 12 and 13 , a primary dispersant 14, a secondary dispersant 15, a drain line 16, and a reservoir 17.

The control valves 5 and 6, by means of a control action and synchronizer 7, are set to position I, when the liquid can be pumped from vessel 1 to vessel 2, or to position II, when the liquid can be pumped from vessel 2 to vessel 1.

Before starting work, the valves 5 and 6 are installed in position I. The vessel 1 is filled with metered and roughly mixed liquids and the pump 9 is turned on.

During the operation of the installation, a coarse mixture of liquids is taken from the bottom of the tank 1, the suction line 3, the dispensing valve 5, the suction pipe 8 and the pump 9 pass through the nozzles 10 and the drain valve 11 to the dispensing valve 6 and then through the discharge line 12 enters vessel 2 through the primary dispersant 14 (centrifugal nozzle). In a centrifugal nozzle, when moving toward the center of the swirl chamber, the fluid acquires a strong twist, and the peripheral velocity of the fluid and the velocity gradient increase. As a result of this, ultrasonic vibrations arise in the swirl chamber, under the influence of which the coagulation structure is destroyed, and fine dispersion of liquids

and a decrease in structural viscosity, which leads to a fairly uniform mixing of liquids.

After emptying the vessel 1 and pumping all the liquid into the vessel 2, it all undergoes a single destruction of the coagulation structure. If necessary, the control valves 5 and 6 are moved to position II. Now the liquid from the lower point of the vessel 2 through the suction line 4, the dispensing valve 5 and the pipe 8 enters the pump 9. With the pump 9, the liquid is pumped into the pipes 10, the drain valve 11, the dispensing valve 6 and then through the discharge line 13 enters the vessel 1 through the secondary dispersant 15. In terms of energy exposure, the secondary dispersant can be equal to the primary dispersant - for mixing relatively simple liquids with weak coagulation bonds. When mixing complex structured liquids with strong coagulation bonds, the secondary dispersant must have a higher level of energy exposure to break them.

During the re-pumping, all the liquid is subsequently subjected to the repeated destruction of its coagulation structure. If necessary, the quality of the mixture can be controlled by the number of processing cycles.

During each cycle, absolutely all liquid undergoes intensive destruction of its coagulation structure twice and is deeply dispersed, up to the molecular level, due to which: structural viscosity decreases sharply, uniform distribution of components throughout the kneading volume is facilitated, the flow of technological processes is facilitated, and the flow can be accelerated many times chemical reactions.

Upon completion of the activation, the liquid from any vessel through the drain valve 11 and the drain line 16 is sent to the tank 17 for storage or further use.

Claims (2)

1. The mixer structured liquids containing a vessel, pump and pipelines, characterized in that it is equipped with a second vessel, while in the lower part of each vessel is a full-flow dispersant connected by pipelines and distribution valves to the high pressure pump, and the distribution valves are connected between a synchronizer. 2. The mixer according to claim 1, characterized in that the dispersants have different power - a different level of energy exposure to the liquid.