RU2747088C1 - Mixer for blending vegetable oils - Google Patents

Abstract

FIELD: oil-fat industry.

SUBSTANCE: invention relates to the oil-fat industry, in particular to equipment for mixing vegetable oils. The mixer includes a vertical cylindrical case with a rotating working body. Inside the case, separate hollow spiral boxes are sequentially arranged. Above each spiral box, there are three comb mixers, mounted at 120° and attached to a spring-loaded rod located inside a rotating vertical hollow shaft. The lower part of each spiral box is connected by a narrow tape copier to the upper part of the same box. The lower part of the comb mixers has slots that are made in the form of confusers, behind which wedge-shaped scarifiers are located in the form of triangular columns, the side faces of the slots and wedge-shaped scarifiers are made concave inwards along a spiral line. To the lower part of the cylindrical case, a conical part is attached, equipped with a double-sided case. On the shaft inside the conical part, there is a frame mixer, on the outer edge of the blades of which T-shaped grooves for a rubber seal are made. In the lower part of the conical part of the case, a cone auger is mounted on the vertical shaft.

EFFECT: technical result of the invention is the production of homogeneous blends of vegetable oils.

1 cl, 7 dwg

Description

The invention relates to the oil and fat industry, in particular to equipment for mixing vegetable oils (sunflower, rapeseed, mustard, camelina, etc.) and can be used in the production of functional vegetable oil blends.

The closest in technical essence and the achieved effect is the mixer [Patent No. 2154520, IPC ⁷ B01 F5 / 10. Mixer / S.P. Polomoshnykh, V.I. Melnichenko; Small innovation enterprise "KAMUS" (RU), Small enterprise "MiZiV" (UA) - №95110496 / 12. 3app. 23.06.1995. Publ. 08/20/2000], which contains a housing, along the vertical axis of which a rotating feeding element is installed - a screw placed in the working chamber in the form of a cylindrical cavity with holes in the lateral surface. The chamber is equipped with a piston located inside it. Outside the working chamber, a perforated cylindrical nozzle is installed with the ability to move. This device makes it possible to obtain emulsions of a wide range from components of various viscosities with the possibility of operative regulation of the process intensity depending on the initial parameters of the components.

The disadvantages of the mixer are: high energy consumption caused by the irrational conduct of the process of mechanical action with the supply of heat to the supplied mixture; uneven distribution of components in the resulting mixture due to the imperfect design of the mixer, which does not take into account the peculiarities of the physical and mechanical properties of the initial components.

The technical objective of the invention is to optimize the process of thermal and mechanical impact on vegetable oils by optimizing the design and nature of the movement of comb mixers on the surface of spiral boxes due to maintaining a given temperature regime, taking into account the characteristics of physical, mechanical and rheological vegetable oils and mixed components; obtaining homogeneous blends from vegetable oils for functional purposes.

The technical problem of the invention is achieved by the fact that in the proposed mixer for blending vegetable oils, including a vertical cylindrical body with a rotating working body, it is new that separate hollow spiral boxes are sequentially located inside the body, equipped with pipes for supplying and exiting the coolant, above each spiral the box contains three comb stirrers, installed at 120 ° and attached to a spring-loaded rod located inside a rotating vertical hollow shaft, with the help of which the comb stirrers move along the surface of the spiral boxes, the lower part of each spiral box is connected by a narrow tape copier with the upper part of the same box to ensure the movement of the comb mixers to their original position, the lower part of the comb mixers has slots, which are made in the form of convergers, behind which are located wedge-shaped openers in the form of triangular tolbikov, the side faces of the slots and wedge-shaped openers are made concave inward along a helical line in the form of parallel bundles and directed from bottom to top, a conical part is attached to the bottom of the cylindrical body, equipped with a double-shell body for supplying a cold coolant, a frame mixer is located on the shaft inside the conical part, on the outer edge of the blades of which, in contact with the inner surface of the body, there are T-shaped grooves for the rubber seal; in the lower part of the conical part of the body, a conical auger is installed on the vertical shaft.

The technical result of the invention is to increase the efficiency of the process of thermal and mechanical action on the mixed types of vegetable oils (sunflower, rapeseed, mustard, camelina, etc.) by optimizing the design and the nature of the movement of comb mixers on the surface of spiral boxes due to maintaining a given temperature regime with taking into account the characteristics of physical, mechanical and rheological vegetable oils and miscible components.

FIG. 1 shows a three-dimensional view of a general view of a mixer for blending vegetable oils, FIG. 2 - three-dimensional image of the attachment point of the comb mixer to the spring-loaded rod; in fig. 3 is a three-dimensional image of a frame agitator blade with a T-shaped groove for a rubber seal; in fig. 4 - three-dimensional image of a comb mixer (top view); in fig. 5 - three-dimensional image of a comb mixer (bottom view); in fig. 6 is a volumetric view of the side surface of the wedge-shaped opener 23 of the comb mixer 5; in fig. 7 is a three-dimensional image of the side faces of the slots 17 and wedge-shaped openers 23 of the comb mixer 5.

The mixer for blending vegetable oils includes a vertical cylindrical body 9 with a vertical hollow shaft 8 located inside it, driven into rotation by means of an adjustable drive 1, sequentially located separate hollow spiral boxes 6, which are equipped with nozzles 11 for supply and nozzles 7 for outlet coolant (Fig. 1). Moreover, the beginning of each subsequent spiral box 6 is aligned with the end of the previous spiral box 6, so that the mixture of oils and components from the upper box 6 flows down to the lower box 6.

Above each spiral box 6 there are three comb stirrers 5, set at 120 °. Comb-type stirrers 5 are attached to a spring-loaded rod 2 located inside a rotating vertical hollow shaft 8.

The lower part of each spiral duct 6 is connected by a narrow tape copier 21 to the upper part of the same duct to ensure the movement of comb mixers 5 to the initial (initial - upper) position (Fig. 1 and Fig. 2). In addition, vertical slots 22 are made on the vertical shaft 8, which provide vertical movement of comb mixers 5 when they move along an inclined plane of hollow spiral boxes 6 (Fig. 2). The pressing of the comb mixers 5 to the inclined plane of the hollow spiral boxes during their downward movement is provided by a compressed spring 20, which with its upper end abuts against the stationary ring 19. A rod 2 is installed inside the spring 20, which ensures the coaxial centering of the comb mixers 5.

The lower part of the comb mixers 5 has slots 17, which are made in the form of confusers (Fig. 4 and Fig. 5), behind which are located wedge-shaped openers 23 in the form of triangular columns (Fig. 6). The side faces of the slots 17 and wedge-shaped openers 23 are made concave inward along a helical line in the form of parallel bundles and directed from bottom to top (Fig. 5 and Fig. 6). Such a configuration of the side surfaces of the slots 17 and wedge-shaped openers 23 makes it possible to break the total mixed flow of oil into separate streams directed from bottom to top and impart a rotational motion to them (Fig. 7).

Attached to the bottom of the cylindrical body 9 is a cone-shaped part, provided with a double body 14, which are equipped with nozzles 13 for supply and nozzles 15 for removing the coolant (Fig. 1). The cone-shaped part of the body has an unloading branch pipe 24.

On the shaft 8, inside the cone-shaped part, there is a frame mixer 16, on the blade 12 of which, in contact with the inner surface of the housing, a T-shaped groove is made for the rubber seal 18 (Fig. 3).

In the lower part of the cone-shaped part of the body on the vertical shaft 8 there is a conical screw 10 and a bearing support 25 (Fig. 1).

In the upper cover 4 of the mixer, nozzles 3 are installed for the dosed supply of various types of vegetable oils and other components (emulsifiers, stabilizers, structurants, flavorings, etc.).

A mixer for blending vegetable oils works as follows.

An adjustable drive 1 is turned on, which drives the vertical hollow shaft 8 into rotation. Through the nozzles 3 installed on the top cover 4 of the mixer, a metered supply of different types of vegetable oils and other components (emulsifiers, stabilizers, structurants, flavorings, etc.) is carried out. At the same time, heat transfer agents are supplied through the nozzles 11 inside the hollow spiral ducts 6, and each duct 6 is supplied with a heat transfer agent with its own predetermined temperature. The nature of the change in the temperature of the coolant along the height of the mixer will be determined not only by the physicomechanical, but also by the rheological properties of vegetable oils and mixed components.

Vegetable oils and other components (emulsifiers, stabilizers, structuring agents, flavoring agents, etc.) fed into the mixer body 9 spread over the heated inclined surface of the first (uppermost) hollow spiral box 6. In this case, comb mixers 5 move along the heated surface of the spiral box 6 by means of a rotating vertical shaft 8.

On the vertical shaft 8 vertical slots 22 are made, which provide vertical movement of comb mixers 5 when they move along the inclined plane of the hollow spiral boxes 6. The comb mixers 5 are pressed against the inclined plane of the hollow spiral box 6 due to the compressed spring 20, which rests against the stationary ring with its upper end 19. As the comb-type mixers 5 rotate along the heated inclined plane of the hollow spiral box 6, they are lowered (moved down) due to the slots 22 in the shaft 8. In this case, the compressed spring 20 gradually expands towards the end of the movement along the hollow spiral box 6 (Fig. 2 ). When leaving the surface of the spiral box 6, the comb stirrers 5 come into contact, that is, they slide over the surface of the copier 21 (Fig. 2). When they rise up to their original position, the spring 20 is compressed again, thereby ensuring tight contact of the comb mixers 5 with the inclined surface of the hollow spiral box 6. When the comb mixers rotate, the mixture of vegetable oils and other components passes through the slots 17, which are made in the form of convergers, and with further movement, it interacts with wedge-shaped openers 23, made in the form of triangular columns. The combination of the profiles of the slots 17, having the shape of confusers, and the wedge-shaped openers 23, made in the form of triangular columns, as well as the fact that the side faces of the slots and wedge-shaped openers are made concave inward along a helical line in the form of parallel bundles and directed from the bottom up, contributes to the formation of two types of movement (Fig. 7):

- rotary, which facilitates the movement of the lower, contacting with the hot surface of the spiral box 6, layers of the blend of oils upward and vice versa, the upper, less heated layers of the blend of oils down to the hot surface of the box 6;

- and cross, i.e. directed towards each other, contributing to additional turbulization of adjacent, contacting streams.

Thus, the proposed design and shape of the side surfaces of the slots 17 and the wedge-shaped openers 23 of the comb mixers 5 significantly turbulize the flow of oils being mixed and moving along the inclined surface of the spiral box 6, which makes it possible to improve the mixing process taking into account changes in the physicomechanical and rheological properties of the mixture of plant oils and will make it possible to obtain homogeneous blends of functional vegetable oils.

The flowing mixture of vegetable oils from the surface of the upper hollow spiral box 6 falls on the second hollow spiral box 6, where the mixing process is repeated taking into account the changed temperature of the coolant supplied to the second hollow spiral box 6.

In the future, the mixing process is repeated on each subsequent spiral box 6.

The mixture of oils and components flowing from the lower, last spiral duct 6 enters the lower conical part of the housing 9. Simultaneously, a cold heat carrier with a predetermined temperature is supplied to the double-beam housing 14 through a branch pipe 13. In this case, the flowing mass contacts the inner surface of the housing 14 and acquires the temperature set by the technology. The blades 12 of the rotating frame mixer 16 not only mix the product, but also move it down. The rubber seal 18, which is inserted into the T-shaped groove (Fig. 3) of the blade 12, provides complete cleaning of the inner surface of the conical part of the housing 9. The rotating conical screw 10 unloads the finished blend of oils from the mixer through the discharge nozzle 24.

The proposed mixer for blending vegetable oils has the following advantages:

- the process of mixing vegetable oils (sunflower, rapeseed, mustard, camelina, etc.) and other components (emulsifiers, stabilizers, structurants, flavorings, etc.) is adapted in accordance with the basic kinetic laws of the mixing process;

- increasing the efficiency of the process of thermal and mechanical action on the mixed types of vegetable oils by optimizing the nature of their movement and maintaining a given temperature regime, taking into account the peculiarities of physical and mechanical vegetable oils and mixed components;

- the proposed design and shape of the side surfaces of the slots 17 and wedge-shaped openers 23 of the comb mixers 5 significantly turbulizes the flow of oils being mixed and moving along the inclined surface of the spiral box 6, taking into account the peculiarities of the physicomechanical and rheological properties of vegetable oils and mixed components;

- the possibility of improving the quality of the resulting oil blend due to the use of softer, "sparing" temperature conditions and uniform machining.

Claims (1)

A mixer for blending vegetable oils, including a vertical cylindrical body with a rotating working body, characterized in that separate hollow spiral boxes are sequentially located inside the body, equipped with pipes for supplying and leaving the coolant, above each spiral box there are three comb mixers installed at 120 ° and attached to a spring-loaded rod located inside a rotating vertical hollow shaft, with the help of which the comb mixers move along the surface of the spiral boxes, the lower part of each spiral box is connected by a narrow tape copier with the upper part of the same box to ensure the movement of the comb mixers to the initial position, the lower some of the comb mixers have slots, which are made in the form of confusers, behind which are located wedge-shaped openers in the form of triangular columns, the side faces of the slots and wedge-shaped openers are made concave and inwardly along a helical line in the form of parallel bundles and directed from bottom to top, a conical part is attached to the lower part of the cylindrical body, equipped with a double body for supplying a cold coolant, a frame mixer is located on the shaft inside the conical part, on the outer edge of the blades of which, in contact with the inner the surface of the body, T-shaped grooves for the rubber seal are made; in the lower part of the tapered part of the body, a tapered auger is installed on the vertical shaft.

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