RU174442U1 - MATERIAL MIXING DEVICE - Google Patents

Abstract

The utility model relates to devices for mixing materials and can be used in the construction, mining, food, medical and other industries. The objective of the proposed utility model is to increase the efficiency of mixing materials. The inventive device for mixing materials contains a mixing chamber 1 of a spherical shape, rotated by a bevel gear 4 and two chain gears 5 located on the carrier 3. The rotation drive includes a gear rotating the carrier 3 around the horizontal axis 8 and the mixing chamber around the second mutually perpendicular axis 7. A belt drive 9 is used as a rotation drive transmission, and chain transmissions have chain tensioners 6. 1 ill.

Description

The utility model relates to devices for mixing materials and can be used in the construction, mining, food, medical and other industries.

A known analogue of the proposed utility model (RF patent for utility model No. 135536, publ. 12/20/2013, bull. No. 35). The device for mixing materials contains a spherical mixing chamber mounted on a carrier, and a rotation drive, which is equipped with gears that provide rotation of the carrier with the camera around the horizontal axis and directly the mixing chamber around the second horizontal axis, perpendicular to the first.

The disadvantage of this device is the design complexity and high metal consumption due to the presence of two bevel gears commensurate with the diameter of the mixing chamber.

The closest analogue is known (RF patent for utility model No. 144695, application form. 04.14.2014, published on 08.27.14, bull. No. 24) of the claimed utility model, as the closest in the aggregate of essential features. A device for mixing materials contains a mixing chamber of a spherical shape mounted on a carrier, and a rotation drive equipped with gears providing rotation of the carrier around a horizontal axis and a mixing chamber around a second horizontal axis. The mixing chamber is made to rotate around a second horizontal axis by means of a bevel gear with two chain transmissions.

The disadvantage of this device is the low efficiency of mixing materials.

The objective of the proposed utility model is to increase the efficiency of mixing materials.

This is achieved by the fact that the device for mixing materials contains a mixing chamber of a spherical shape, rotated by means of a bevel gear and two chain gears located on the carrier. The rotation drive includes a gear rotating the carrier around a horizontal axis and a mixing chamber around a second mutually perpendicular axis. A belt drive is used as the transmission of the rotation drive, and the chain drives have chain tensioners.

The utility model is illustrated by the drawing, where Fig. 1 shows a kinematic diagram of a device for mixing materials.

The device consists of a mixing chamber 1 of a spherical shape with a loading hatch 2. Camera 1 is mounted on carrier 3. On the carrier there is a bevel gear 4 with two chain gears 5 and chain tensioners 6, providing rotation of the chamber relative to axis 7. Rotation of the carrier relative to horizontal axis 8 is carried out by means of a rotation drive, including a belt drive 9 and an engine 10. The axes 7 and 8 are mutually perpendicular. The material supply unit and the discharge unit are not shown in the kinematic diagram.

The device operates as follows.

The source material, for example limestone, enters the mixing chamber 1 through the loading hatch 2. The torque created by the engine 10 rotates the carrier 3 with the mixing chamber 1 with high angular speeds relative to the horizontal axis 8 by means of a belt drive 9, and the interaction of the chain 5 and bevel gear 4 provides rotation of the actual mixing chamber 1 relative to axis 7. Thus, an intense bi-directional rotational effect on the material is created. This leads to efficient mixing of the material particles.

The impact on the particles of the material occurs in two mutually perpendicular directions. On the one hand, centrifugal forces are caused by the rotation of the carrier 3 with a spherical mixing chamber 1 fixed on it with respect to the horizontal axis 8. On the other hand, centrifugal forces are caused by the rotation of the mixing chamber 1 relative to the second axis 7, mutually perpendicular to the horizontal axis 8. Superposition of forces forces particles material to move along a complex path.

The operating mode of the device for mixing materials is periodic. The spherical mixing chamber 1 must have a small diameter in order to avoid the occurrence of excessive loads on the bearing assemblies. It is assumed that the material of the spherical mixing chamber is filled by one third of the volume. After closing the loading door 2, the mixing chamber 1 is rotated relative to two mutually perpendicular axes. The selected belt drive 9 provides a simple stepless variation of the carrier speed using a frequency converter (not shown in FIG.). Chain tensioners 6 eliminate chain slippage and provide the necessary torque, which in general will lead to an increase in the mixing efficiency of materials. The spherical shape of the mixing chamber and the variation of the rotation frequencies are expedient for eliminating the stagnant loading zones and increasing the mixing intensity, since with a certain ratio of frequencies an optimal loading path for the material appears. All this contributes to an increase in the area of contacting surfaces, the number of interactions and diffusion of materials.

The working phase ends by stopping the rotation drive after a certain time interval and unloading the mixing chamber.

The cycle of mixing particles of the material can vary for different materials, and to obtain a given quality of mixing of the material based on pre-conducted experiments.

The proposed solutions make it possible to ensure smooth running and the ability to work with large angular speeds, stepless variation of the carrier speed. The presence of two chain gears will reduce the size of the bevel gears of the gear, which rotates the mixing chamber directly, and the tensioners compensate for the chain elongation. All this will significantly reduce the material consumption of the structure and reduce the cost of the device for mixing materials.

Claims (1)

A device for mixing materials containing a spherical mixing chamber rotated by a bevel gear and two chain gears mounted on a carrier, and a rotation drive with a gear rotating the carrier around a horizontal axis and a mixing chamber around a second mutually perpendicular axis, characterized in that as rotational drive transmissions a belt drive is used, and chain transmissions have chain tensioners.

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