RU2692717C1 - Loose materials mixer - Google Patents

Abstract

FIELD: technological processes.SUBSTANCE: invention is intended for use in chemical industry, agriculture industry, production of building materials, and other industries. Bulk materials mixer comprises proportioners, base, on which mixing chamber is installed, consisting of housing and arranged in it two mixing nodes, upper and lower, each mixing assembly includes a mixing device and a drive mounted on a crossmember, the axis of the mixing device of the lower mixing unit is located at right angle to the axis of the mixing device of the upper mixing unit. Mixing device of upper mixing assembly is a set of parallel flat plates inclined to horizontal line at acute angle, wherein distances between plates increase from central plates to peripheral, and the mixing device of the lower mixing assembly is made in the form of a set of non-equilateral angles, the distance between which is the same, and angles of inclination of large faces to the horizontal increase from the centre to the periphery.EFFECT: mixer with simple design provides high efficiency and quality of mixing of materials prone to segregation; mixer is easy to maintain and repair.1 cl, 2 dwg

Description

The present invention is intended for use in the chemical industry, the agro-industrial complex, the production of building materials and other industries.

Known mixer bulk materials [RF Patent №2256493, IPC B01F 11/00, publ. July 20, 2005, BI No. 20]. The bulk solids mixer comprises a housing placed inside a cylindrical working chamber inside its upper part, connected to devices for loading and unloading a product. Inside the case there is a vertical shaft, to which are attached working bodies, having on the surface elastic elements, made in the form of brushes, in contact with the bottom of the working chamber, in a wavy shape. Under the working chamber, inclined trays are located one above the other, having the possibility of rotation around an axis and equipped with damping devices.

The disadvantages of this unit should be attributed to the low quality of mixing of segregating materials.

Closest to the proposed invention is a mixer bulk materials containing dispensers, the base on which the mixing chamber is installed, consisting of a housing and placed in it the same mixing units, the top and bottom. The composition of each mixing unit includes a mixing device, which consists of brush drums and an actuator mounted on a cross member. The axis of the mixing device of the lower mixing unit is located at a right angle to the axis of the mixing device of the upper mixing unit [RF Patent №2203727 IPC B01F 3/18, publ. 05/10/2003, BI No. 13].

The disadvantages of this mixer should be attributed to the poor quality of mixing segregation prone materials.

The objective of this invention is to create a mixer bulk materials allowing to obtain a homogeneous mixture of segregation prone materials.

The task is achieved by the fact that in the mixer bulk materials mixer bulk materials containing dispensers, the base on which the mixing chamber is installed, consisting of a body and two mixing units, upper and lower, located in it, each mixing unit contains a mixing device and an actuator mounted on the crossbar, the axis of the mixing device of the lower mixing unit is located at right angles to the axis of the mixing device of the upper mixing unit, the mixing device of the upper mixing unit This is a set of parallel flat plates inclined to the horizontal at an acute angle, with the distances between the plates increasing from the central plates to the peripheral ones, and the mixing device of the lower mixing unit is made in the form of a set of non-equal angles, the distances between which are the same, and the angles of inclination of the large faces towards the horizontal increases from the center to the periphery.

FIG. 1 shows a bulk materials mixer.

FIG. 2 shows a view to the left.

The bulk materials mixer contains dispensers 1 and 2, the base 3, on which the mixing chamber is installed, consisting of the housing 4 and two mixing units, upper and lower, located in it. The composition of each mixing unit includes mixing devices and drives 9 and 10 mounted on crossbars 5 and 6, the axis of the mixing device of the lower mixing unit is located at right angles to the axis of the mixing device of the upper mixing unit.

The mixing device of the upper mixing unit is a set of parallel-arranged flat plates 7, inclined to the horizontal at an acute angle, with the distances between the plates 7 increasing from the central plates to the peripheral ones.

The mixing device of the lower mixing unit is made in the form of a set of unequal angles 8, the distances between which are the same (the distance between the attachment points), and the angles of inclination of the large faces to the horizontal increase from the center to the periphery.

Mixer bulk materials as follows. Bulk materials to be mixed flow from dispensers 1 and 2 into the internal volume of body 4 - into the upper mixing unit. Once in this node, the particles of the mixed materials interact with reciprocating motion (from the actuator 9) in the horizontal plane by the elements of the mixing device, which is a set of parallel flat plates 7, inclined to the horizontal at an acute angle.

In view of the fact that the volumetric density of the incoming flow of materials being mixed is uneven (maximum in the center and decreases to the periphery) the distances between the plates 7 increase from the central plates to the peripheral ones. This allows you to provide almost the same number of particles of components in the cells between the flat plates 7. This effect on the particles leads to their intensive mixing and prevents the development of segregation by limiting the mobility of the mixture - dividing it into cells with flat plates 7.

Pre-prepared mixture of their upper mixing unit enters the mixing device of the lower mixing unit. The lower mixing node is designed to intensify the process and prevent segregation in the form of a set of unequal angles 8, the distances between which are the same, and the angles of inclination of large faces to the horizontal increase from the center to the periphery, which is necessary to ensure the same amount of materials in the cells due to uneven flow. The presence of a set of unequal corners allows organizing a multidirectional effect on the particles of materials (reflections of particles from faces at different angles, movement along edges, etc.), which has a positive effect on the quality of mixing.

The proposed mixer with a simple design has a high performance and quality of mixing materials prone to segregation. The mixer is easy to maintain and repair.

Claims (1)

Mixer bulk materials containing dispensers, the base on which the mixing chamber is installed, consisting of a body and two mixing units, upper and lower, located in it, each mixing unit consists of a mixing device and an actuator mounted on the cross member, the axis of the lower unit mixing device mixing is located at right angles to the axis of the mixing device of the upper mixing unit, characterized in that the mixing device of the upper mixing unit is a set parallel to the flat plates inclined to the horizontal at an acute angle, the distances between the plates increasing from the central plates to the peripheral ones, and the mixing device of the lower mixing unit is made in the form of a set of unequal angles, the distance between which is the same, and the angles of inclination of the large faces to the horizontal increase from the center to the periphery.

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