RU2139133C1 - Mixing device for mixing of liquid or pasty ingredients in liquid flow - Google Patents

Abstract

FIELD: hydraulics, rheology, hydrodynamics. SUBSTANCE: mixing device has supply and discharge lines, ejector with a contraction, liquid and pasty ingredients feed assembly. Liquid and pasty ingredients are placed in a separate vessel, which is installed in a sealed body with a cover. Provision is made for a hollow needle rigidly linked with the ejector in the area of outlet section of the ejector contraction. The vessel for liquid and pasty ingredients is made in the form of a block-capsule comprising a rigid framework, elastomer material and an outlet neck with a locking assembly. The hollow needle has a sharp extremity, the needle diameter and length correspond to the precept flow rate of liquid and pasty ingredients. The locking assembly represents a break-through membrane hermetically installed on the neck end face of the block-capsule. The block-capsule framework is made as a construction with three beams uniformly distributed in circumference. EFFECT: enhanced intensity and rate of the process of mixing of liquid and pasty ingredients in liquid flow, production of mixtures with a definite low concentration of admixed medium (ingredient) in the precept volume of liquid, expanded spectrum of probable ingredients for mixing, including pastes filled with high-molecular polymers, viscous liquids with special physico-mechanical properties (thixotropy). 3 cl, 3 dwg

Description

 The invention relates to the field of hydraulics, rheology, hydrodynamics and can be used in various industries (chemical, light, food industry, utilities, fire fighting, etc.), especially in cases where intensive and uniform mixing of liquid and pasty is required media (ingredients) in a liquid in a relatively short time.

 Known technical solutions for mixing liquid ingredients in a liquid stream (patent N 2022630 of the Russian Federation and others).

 Closest to the claimed is a device according to patent US 5053206 A, class. 01 F 1/00, 01.10.91, which contains an ejector with a confuser, the inlet and outlet lines, the component supply unit in the form of a sealed housing with a lid having a fluid supply line from the supply line to the body.

 The lack of separate storage of the mixed liquid medium (ingredient) with the stream in the pipe, the direct interaction of the stream with the liquid ingredient, especially those that can enter into a physicochemical interaction, leading to changes in their structure, makes it impossible to use this technical solution in some cases of mixing liquid ingredients. Particularly unfavorable is the direct connection of pasty ingredients (high molecular weight polymers), which, when combined with a liquid medium, are prone to clumping due to their hygroscopicity.

 The proposed mixing device is devoid of the noted drawbacks and is aimed at increasing the intensity and speed of the process of mixing liquid or paste-like ingredients in a liquid stream, obtaining mixtures with a certain low concentration of the mixed medium (ingredient) in a given volume of liquid, expanding the range of possible ingredients for mixing, including pastes filled with high molecular weight polymers, viscous liquids with special physicochemical properties (thixotropy, etc.).

In FIG. 1 presents a structural diagram of the proposed device;
figure 2 is a structural diagram of the neck of the block capsule;
figure 3 is a structural diagram of a mixing device made in the form of two modules-mixers.

 The device consists of a supply pipe 1, an ejector 3 with a confuser 4, a line 5 for supplying liquid from the main stream and feeding it into the housing 9 with a cover 6, in which is placed a capsule block 7, a hollow needle 8, rigidly connected to the ejector body in the area of the output section of the confuser. At the inlet and outlet of the fluid flow line, taps 2 and 11 are installed, which are connected by a common rod 10.

 A breakthrough membrane 15 is sealed on the neck 13 of the block capsule.

 The frame 12 of the block capsule is a structure with three beams evenly distributed around the circumference.

 The device operates as follows.

 The fluid flow enters the supply line 1 and then, bypassing the valve 2, enters the confuser 4 of the ejector 3, where due to the compression of the fluid flow, its speed increases and, accordingly, the static pressure decreases. In front of the ejector 3, liquid is taken and through line 5 enters the housing 6 with the block capsule 7 installed in it with the original liquid or paste-like ingredient, which, through the needle (knife), breaks through the membrane 15 and is joined with the ejector 3.

 The obturator sleeve 14 with the membrane 15 is fixed on the neck 13 of the block capsule 7 with a cover 16.

 In the case when it is required to replace the block capsule 7 during operation of the mixing device without stopping it, or when another ingredient is used in the process of mixing different ingredients at the same time, the proposed device is made of two (or more) identical modules - mixers operating according to the above principle.

Claims (3)

 1. The mixing device, which includes an ejector with a confuser, a node for supplying liquid pasty ingredients, inlet and outlet lines, characterized in that the liquid and pasty ingredients are placed in a separate container, which is installed directly in a sealed enclosure with a lid, a needle is installed, rigidly connected with an ejector in the area of the outlet cross section of the ejector confuser, and the container for placing liquid and pasty ingredients is made in the form of a capsule block consisting of a rigid frame, elastomeric of material and the outlet neck with a closure assembly, the hollow needle is formed with a sharp tip, the needle diameter and length correspond to a predetermined flow rate of liquid or pasty ingredients, said locking device is a breakthrough membrane sealingly mounted on the neck-end unit of the capsule.  2. The mixing device according to claim 1, characterized in that the frame of the capsule block is made in the form of a structure with three beams uniformly distributed around the circumference.  3. The mixing device according to claim 1, characterized in that it is made in the form of two or more similar devices connected in parallel.

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