RU2451541C2 - Intermittent rotary-vibration small-volume mixer - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention serves to mix whatever components to produce high-quality compositions, solutions, mixes, powders, etc, to be used in construction, chemistry, industry, agriculture, etc. Proposed mixer comprises mixing device secured on post and made up of mixing attachment driven by geared motor. Mixing container represents metal pail. Mixer and mixing container are mounted on oscillating plate with electrically driven vibrator.

EFFECT: higher efficiency and reliability.

2 cl, 1 dwg

Description

The invention relates to the design of a mixer, which allows you to mix various substances and components (liquid and solid, solid and solid, liquid and liquid) to obtain the desired objects (compositions, solutions, suspensions, mixtures, powders, etc.) using three modes: simple mixing, simple vibration and combination of mixing and vibration. As the mixer can be used all known types of mixing nozzles. This device has an electric drive powered by a standard household electrical network (220 V) and can be used in construction, the chemical industry, the paint and varnish industry, the polymer industry, agriculture and directly in human life.

A known design of continuous continuous flow mixer (brands: FLOTTI, calypso D 20, calypso D 30, 2_MIX MERKUR, 2_MIX HANON, 2_MIX GEMINI) [www.softstroy.ru/flow_mixer.htm]. This equipment allows you to continuously obtain high-quality homogeneous mortars from dry building mixtures and helps to carry out the following types of work: plastering, painting, tiling, fireproof (heat-shielding) work, screeding, finishing leveling, production of bulk floors.

The principle of operation of the device includes several stages: continuous supply of dry mortar to the receiving hopper of the mortar mixer; mixing the mixture with water in the mixing chamber using a screw; unloading in a container for a solution.

The disadvantages of this device are the following:

- a complex device for the dosing chamber;

- special profile of the mixer (screw type);

- this design does not allow to obtain dry mixes and mix paints;

- narrow specialization of the device by type of work;

- the design requires special care for the mixing device (auger and metering chamber).

Known forced-action concrete mixers (turbulent concrete mixers of the NAVIGATOR 150, NAVIGATOR 250 brands), which are used for the preparation of mortars and concrete in construction, underground and railway construction, in the glass and metallurgical industries. The principle of operation of these mixers is to create a high gradient of velocities between the layers of the processed mixture using an activator, as a result of which high quality mixing is achieved in a short time [http://www.penobet.ru/catalog.html].

The disadvantages of this device are:

- limited use (only solutions and concrete can be obtained);

- this design does not allow to mix putties, glues, paints, powders, dry mixes;

- in the mixing device, the occurrence of "stagnant zones."

The closest in technical solution is the nozzle-mixer for a drill, designed for mixing [http://www.dreli.org/shop-cat-307.html]. The device has the following disadvantages:

- at high speeds sprays miscible components;

- creates a vibrational effect on the hands of a person;

- with a significant volume of the mixing tank can form "stagnant zones";

- leads to premature wear of the drill drive, since the nozzle must be moved during mixing;

- does not allow the use of small and not powerful drills with large sizes of the mixing nozzle.

An object of the invention is to create a compact rotational-vibrational mixer of periodic action (small volume), which due to various mixing modes, as well as using all known types of standard mixing nozzles, will quickly obtain the desired objects (compositions, solutions, suspensions', mixtures, powders and etc.) using a standard household electrical network (220 V) as power. During vibration and rotation in the resulting objects (compositions, solutions, suspensions, mixtures, powders, etc.), a complex chaotic motion of particles occurs, which allows to achieve a more uniform distribution in the total volume. Variation of various mixing modes and the use of all known mixing nozzles increases the scope of use of this mixer, and its compactness allows it to be used not only in industrial production, but also in human life. Moreover, in the process of mixing using a rotational vibration mixer of periodic action (small volume), the resulting objects (compositions, solutions, suspensions, mixtures, powders, etc.) are produced without loss.

Due to the complex chaotic vibrational and rotational movement of particles, constant shaking and mixing occurs, thereby eliminating the possibility of the formation of “stagnant and dead zones” during mixing throughout the entire volume of the object (composition, solution, suspension, mixture, powder, etc.).

The design of a rotational-vibrational mixer of periodic action (small volume) is a fixed base plate, on which, using springs, a vibrating plate is mounted with an electric vibrator installed on it and a mixing device consisting of a mixing nozzle driven by an electric motor gearbox. The vibrator creates a vibrational effect, and the electric drive of the mixing device by means of the mixing nozzle physically acts on the mixing object (composition, solution, suspension, mixture, powder, etc.).

Figure 1 presents a diagram of a rotational vibration mixer of periodic action (small volume).

1 - electric motor-reducer, 2 - electric motor start button 1, 3 - vibrator start button 20, 4 - stop button, 5 - electric motor shaft speed setting regulator 1, 6 - control unit, 7 - handle, 8 - cartridge for fixing mixing nozzles, 9 - safety cap, 10 - mixing nozzle, 11 - stops, 12 - vibrator mounting bolts, 13 - spring cups, 14 - vibrator shaft, 15 - unbalance, 16 - fixed plate, 17 - rubber base, 18 - grounding circuit, 19 - springs, 20 - electric vibrator, 21 - vibrator bed, 22 - plate, 23 - st ndartnoe metal bucket, 24 - the object obtained in the mixing process (a composition, a solution, a suspension, a mixture powder, etc.) 25 - Mounting rack 26 - detent corners 27 - turning loop 28 - mixing device.

The operation of this device is as follows. A bucket 23 with components to be mixed is installed on the vibration plate 22 in the stops 11 and the mixing nozzle is lowered by moving the mixing device 28 (which includes an electric motor 1, a control unit 6, a mounting chuck 8, locking angles 26, by the handle 7 by 180 °) mixing nozzle 10 and handle 7). After that, depending on the selected mixing mode, use the controller 5 located on the control unit 6 to set the rotation frequency and turn on either the electric motor 1 (rotational mixing mode) or the vibrator 20 (vibrational mixing mode), or both of them at the same time (rotational-vibrational mixing mode ) The mixing nozzle 10 begins to rotate in the volume of the object (composition, solution, suspension, mixture, powder, etc.) and forms a funnel-shaped flow, in which a void forms in the center of the object (the so-called “stagnant or dead zone”, which does not affect the process of mixing liquids, but negatively affects the mixing of solid and liquid components), which does not allow uniform distribution of particles throughout the volume. When you turn on the vibrator 20, creates a vibrational effect on the entire volume of the mixing object (composition, solution, suspension, mixture, powder, etc.), which eliminates the "stagnant zone". The vibration plate 22 oscillates on the springs 19 fixed in the cups 13 under the influence of a vibrator 20, which is an electric motor with unbalances fixed at the ends of its shaft 14. The mixing process ends when the color of the total volume of the mixed components (i.e. the object) becomes homogeneous (homogeneous ) After that, the mixing nozzle 10 is removed from the obtained object (composition, solution, suspension, mixture, powder, etc.) by moving 180 ° by the handle 7 of the mixing device 28. To facilitate the extraction of the mixer, the mounting design of the actuator 1 allows it to be rotated about a horizontal axis and fixed vertically during operation. Then the bucket 23 with the finished object (composition, solution, suspension, mixture, powder, etc.) is removed from the limiters 11 and removed from the vibrating plate 22. To clean the device, it is necessary to run it in rotational mode with a container 23 filled with cleaning solution.

To create electrical protection, a rotational-vibrational mixer of periodic action (small volume) should be placed on a rubber base 17 and provide grounding.

In the proposed design, you can apply all known types of mixing nozzles, which are installed in the cartridge 8 and use power from a standard household AC 220 V.

Claims (2)

1. The rotary-vibration mixer of periodic action for mixing various components, which is a mixing device mounted on a rack, consisting of a mixing nozzle, driven by an electric motor gearbox, and a mixing tank in the form of a metal bucket, characterized in that the mixing device and mixing tank mounted on a vibrating plate with an electric vibrator. 2. The rotary-vibrational batch mixer according to claim 1, characterized in that the mixing device is mounted on a fastening rack with a rotary loop that allows you to remove and hold the mixing body from the finished objects.

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