RU2436622C1 - Device for making mixture of loose materials - Google Patents

Abstract

FIELD: technological processes. ^ SUBSTANCE: invention is related to preparation of dry loose materials and may be used in agriculture, food, chemical and other industries. The device comprises a mixing chamber from elastic material in the form of a hollow cylinder. Outside the chamber sections are embraced with circular yokes with inner gaskets. The yokes are connected to a crank shaft of a mixer drive by means of connecting rods. The chamber may do oscillating reciprocal motion in the vertical plane. Chamber sections between yokes may oscillate horizontally. ^ EFFECT: provision of high durability, high quality of loose mixtures preparation, increased efficiency without complicating of mixer design and with low mixing time. ^ 1 dwg

Description

The invention relates to techniques for the preparation of dry bulk mixtures and can be used in agriculture, food, chemical and other industries.

The Bukhanko mixer is known for dry and hard mixtures, containing an elastic deformable body and an eccentric mechanism made in the form of eccentric rings fixed on the inside of the pipe and rotatably mounted, on which bearings are supported, the inner cages of which are connected to the elastic body to convert the rotational movement of the drive into complex reciprocating movement of all points of the elastic body / 1 /.

The disadvantage of the mixer is the need for additional installation of an eccentric mechanism for converting movement, which complicates the design of the mixer and increases the mixing time.

For the prototype of the proposed device, a bulk material mixer is adopted, comprising a frame with a horizontally located chamber made of elastic material with loading and unloading holes and drive rollers in contact with the chamber, it is equipped with a carriage made with the possibility of reciprocating movement, on which by means of brackets above the upper and lower part of the chamber is equipped with rollers whose axes are parallel, with the formation of a wave-like shape of the latter, the chamber being made in the form of a shell, forming two parallel plates interconnected by semi-cylindrical shells, and the rollers are conical, the tops of the cones of which are directed in one direction, while the sum of the difference in the installation heights of the rollers of the average diameter and the height of the chamber is 0.6-1.2 steps of installing the rollers of the same height / 2 /.

The disadvantage of this device is the fragility of the mixer, due to accelerated wear of the elastic chamber due to the constant movement of the rollers along the walls of the chamber, a large number of constituent elements that complicate the design of the mixer.

The present invention solves the problem of increasing the durability of the mixing chamber while simplifying the design of the mixer.

To solve this problem, a device for preparing a mixture of bulk materials is proposed, comprising a frame with a mixing chamber made of elastic material made in the form of a hollow cylinder with loading and unloading openings; outside the chamber sections are surrounded by ring clamps with internal gaskets located at least at a distance from each other the diameter of the cross section of the mixing chamber, and the clamps are connected to the crankshaft of the drive of the mixing chamber by means of connecting rods, with the possibility of oscillatory reciprocating motion in the vertical plane when raising and lowering the camera sections between adjacent clamps to a height of, for example, 0.75 section lengths with a ratio of the diameter of the chamber to the length of the section between the rods 4: 3 and the possibility of horizontal oscillations of the camera sections between the clamps, deviation of the connecting rods from a vertical position by an angle of up to 10 ° due to the deviation of the axis of rotation of the connecting rod journals of the crankshaft from the axis of rotation of the crankshaft main journals.

The invention is illustrated in the drawing.

The drawing shows a diagram of a device for preparing a mixture of bulk materials.

A device for preparing a mixture of bulk materials contains a frame 1 on which a drive is installed, consisting of an electric motor 2 and a gear 3. It is connected to a crankshaft 4, on which connecting rods 5 with vertical rods 6 are mounted. On the vertical rods 6 there are clamps 7 with gaskets, in which a cylindrical mixing chamber 8 of elastic material with loading 9 and unloading 10 nozzles is fixed, and the clamps 7 divide the cylindrical mixing chamber 8 of elastic material into three working sections I, II, III, and I have rods 6 screw device 11 for adjusting the lift amount (see. the drawing).

The device operates as follows.

Pour through the loading pipe 9 into a cylindrical mixing chamber 8 made of elastic material, the components of the mixture include an electric motor 1 and a gear 2. In the stationary state, the left part of the first section I of the chamber is lowered, and the right part is raised, the left part of the second section II is raised, and the right part is omitted, the left part of the third section III is raised, and the right is omitted (Figure 1). The gearbox shaft 3 rotates the crankshaft 4, which raises and lowers the connecting rods 5 with vertical rods 6 with clamps 7. The left part of the first section I of the chamber rises and the right part lowers, the left part of the second section II lowers and the right part rises, the left part of the third section III is lowered, and the right side of the section rises. When the clamps 7 move, the sections of the cylindrical mixing chamber 8 make an alternating complex movement: the wave in the vertical plane and the oscillatory movement of the sections of the chamber 8 in the horizontal plane when the connecting rods 5 are deflected by an angle of up to 10 ° in the cross section due to the deviation of the rotation axes of the crankshaft connecting rods 4 from axes of rotation of the crankshaft main journals 3. The height of raising and lowering the sections of the mixing chamber 8 depends on the stroke of the rods 6, which is regulated by the screw device 11. The components of the mixture are perfect so complicated motion. Particles of the components of the mixture move progressively, cyclically rise and fall together with the sections of the chamber 8 due to the friction forces on the walls of the chamber, move vibrationally in the horizontal plane in the free sections of the mixing chamber 8 that are not fixed in the clamps 7 and are turned over relative to each other due to the friction forces of the components. The chamber of elastic material 8 is made in the form of a hollow cylinder. During operation, it performs both oscillatory wave movements in the vertical plane with the raising and lowering of its sections between adjacent clamps 7 to a height of 0.75 section lengths with a ratio of the diameter of the cylindrical mixing chamber 8 to the length of the section between rods 6 both 4: 3 and horizontal vibrations sections of the mixing chamber 8, not fixed in the clamps 7. The cylindrical mixing chamber 8 and the crankshaft 4 are mounted on the frame 1. The movement is carried out from the electric motor 2 through the gearbox 3. The finished mixture is unloaded through the grate hydrochloric pipe 10.

Information sources

1. Patent of the Russian Federation No. 2082489, BI No. 18, 06/27/97.

2. Auth. St. USSR No. 1491732. BI No. 25, 07/07/89 - prototype.

Claims (1)

A device for preparing a mixture of bulk materials containing a frame with a mixing chamber made of elastic material with loading and unloading openings, characterized in that the chamber is made of elastic material in the form of a hollow cylinder, the outside of the chamber sections are surrounded by ring clamps with inner gaskets located on each other a distance of not less than the cross-sectional diameter of the mixing chamber, and the clamps are connected to the crankshaft of the mixing chamber drive by means of connecting rods, with the possibility performing oscillatory reciprocating motion in the vertical plane when raising and lowering the chamber sections between adjacent clamps to a height of, for example, 0.75 section lengths with a ratio of the diameter of the chamber to the length of the section between the rods as 4: 3 and the possibility of horizontal oscillations of the chamber sections between the clamps, when the connecting rods deviate from the vertical position by an angle of up to 10 ° due to the deviation of the axis of rotation of the connecting rod journals of the crankshaft from the axis of rotation of the crankshaft main journals.

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