RU2616664C1 - Sectional mixer of flow type - Google Patents

Abstract

FIELD: machine engineering.

SUBSTANCE: sectional mixer of flow type liquid consists of at least two prefabricated sections, which form the mixer housing with a partition between two adjacent sections, at which the return valve is located, and the working body is made of tube with nozzles in the form of section contour, at that, the actuator can perform the functions of the automatic wash.

EFFECT: efficiency increase of the consequent mixing of liquids in the continuous flow, improving the quality of the ready mixture.

1 dwg

Description

The invention relates to a device for mixing liquids and can be used in chemical, food petrochemical and other industries for sequential mixing of two or more liquids in a continuous stream.

There are cases when the stage of mixing between liquids of two or more types is carried out during the production, processing or analysis of products, semi-finished products, materials or samples in various industrial sectors, such as chemical, medical, food or semiconductor. When a certain degree of accuracy is required for the ratio of liquids in the mixture at the mixing stage, the liquids are often mixed together using a batch method that provides excellent weight accuracy.

However, batch mixing can be difficult with a batch process or similar manufacturing processes. In addition, undesired chemical reactions can occur when several highly concentrated liquids are mixed simultaneously. In such cases, stage-by-stage mixing is necessary, namely, thorough mixing of the first highly concentrated liquid with the main stream and only after that with the second highly concentrated liquid and so on.

The closest analogue to the invention is a device for mixing liquids (RF patent No. 2529242, publ. 09/27/2014), comprising a first supply system for a first fluid, a second supply system for a second fluid, and a fluid mixing system for supplying a first and second fluid from feed systems. The first feed system is in fluid communication with the fluid mixing system through the first flow control means with a first channel cross-sectional area; the second feed system is connected to the fluid mixing system through a second flow control means with a second channel cross-sectional area. The first liquid in an amount corresponding to the first cross-sectional area of the channel, and the second liquid in an amount corresponding to the second cross-sectional area of the channel are supplied to the fluid mixing system, respectively, because the pressure inside the fluid mixing system becomes negative.

However, this mixer has a periodic pulsation of the liquid at the outlet due to periodic inversion of the pressure inside the liquid mixing system from negative to positive. And also the system of metering valves requires precise time-consuming settings and adjustments at relatively short intervals of equipment operation. In addition, the accuracy of dosing through the valve will greatly depend on the fluid, the viscosity of which will vary with temperature.

The technical result is an increase in the efficiency of sequential mixing of liquids in a continuous stream, and therefore, improving the quality of the finished mixture.

The problem is solved in that a sectional mixer of flowing liquids consists of at least two prefabricated sections, which form a mixer body with a partition between adjacent sections, on which a check valve is located, and the working body is made of a pipe with nozzles in the form of a section contour.

The drawing shows a sectional mixer flow type.

A sectional mixer of the flowing type of action is made of prefabricated sections 1, 2, 3, which form the mixer body with partitions 4 between adjacent sections, on which check valves 5, 6 are located. The working bodies are made of pipe 7 with nozzles 8 in the form of a section contour. Reflectors 9 are located on the inner walls of the mixer body. The mixer is equipped with a fluid supply system in the form of metering pumps 10, 11, 12, 13.

The mixing process in this mixer is as follows. The main fluid flow is supplied through the metering device 10 to section 1, at the same time the first additional fluid through the metering device 11 is also supplied to section 1, the second additional fluid through the metering device 12 is supplied to section 2, the third additional fluid through the metering device 13 is fed to the section 3, and the working element 7 begins to rotate. Filling of the mixer takes place in three stages. At the first stage, liquids dosed into the mixer by dispensers 10, 11 into section 1, flow under the action of gravity through valves 5, 6 into section 3, liquid dosed into the mixer by dispenser 12 into section 2, also flow through valve 6 under gravity to section 3. After filling section 3, the metering device 13 temporarily stops working until the mixer is completely filled. At the second stage, liquids dosed into the mixer by dispensers 10, 11 into section 1, flow through the valve 5 into section 2 under the action of gravity. After filling section 2, the metering device 12 temporarily stops working until the mixer is completely filled. At the third stage, section 1 is filled by dispensing liquids into it with dispensers 10, 11. After the mixer is completely filled with liquid, its selection from section 3 can be started, while the mixed liquids begin to be proportioned into the interior of the mixer. The shutdown of the mixer also takes place in three stages. At the first stage, the dispensing is stopped by dispensers 10, 11. In the second stage, after draining the liquid from section 1 through valve 5 to section 2, the dispensing stops at 12. At the third stage, after draining the liquid from section 2 through valve 6 to section 3, the dispensing stops 13. After draining the liquid from the entire mixer, it is washed by rotating the working body of the mixer, made of pipe 7, into the interior of which the washing liquid is supplied with compressed air. As a result of the rotation of the working body, the washing liquid sprayed from the nozzles 8 covers the entire inner surface of the mixer.

This mixer allows you to consistently mix two or more liquids in a continuous stream, improve the quality of the finished mixture and improve mixing by using a mixing element, reflectors, check valves, provide the necessary dose for mixing the components, and also reduce material and time costs for washing equipment.

Claims (1)

A flow-type sectional liquid mixer comprising a liquid supply system, means for regulating the liquid supply, a mixing system with a working body, characterized in that it is made in the form of at least two prefabricated sections that form a mixer body with a partition between two adjacent sections, on which the check valve is located, and the working body is made of a pipe with nozzles located on it, and the working body is installed with the possibility of axial rotation.

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