SU1609490A1 - Arrangement for disintegrating materials - Google Patents

Abstract

The invention relates to the handling of bulk materials, namely, devices for grinding materials, and improves the quality of the finished product by adjusting the processing time. The device contains a working chamber 1 with a grid 2, a sublattice 3 and a sublattice 4 parts, a cooling chamber 5, an inductor 6, ferromagnetic bodies 7. On the cover 8 there is a branch pipe 9 for introducing the source material and a branch pipe 10, which is freely movable An overflow pipe 11 is installed, which serves to discharge the spent coolant and the finished product. The space between the nozzle 10 and the overflow pipe 11 is filled with the gasket 12. Heat carrier is supplied through the nozzle 13, which is then fed into the grating part 3 through the nozzle 14, which is endowed with the end of the overflow pipe 11. f-ly, 1 ill.

Description

The invention relates to the processing of bulk materials, namely, devices for grinding materials and can be used, for example, in chemical, construction and other industries. For industrial use for grinding, mixing, drying, and the like. bulk materials.

The purpose of the invention is to improve the quality of the finished product by adjusting the processing time

The drawing shows a device for grinding materials, a general view,

The device for crushing materials contains a vertical working chamber 15 divided by a grid 2 into an address 3 and sublattice 4 cooling chambers 5, inside which is located an inductor 6 — the source of a collapsing elastomagnetic field, covering the grating part 3 of working chamber 1, p. housed in it by ferromagnetic bodies 7 in it. From above it is perlattice; Part 3 of the working chamber 1 is enclosed by a cover 8, on which is placed a pipe 9 for introducing the source material, and a pipe 10, in which a transfer pipe is installed freely along the working chamber 1. 11 j serving for the withdrawal of heat transfer media.1 and the finished product. The space between the nozzle 10 and the overflow pipe 11 is filled with the gasket 12. The sublattice part 4 of the working chamber 1 is equipped with a fitting t3 for supplying a heat transfer fluid, which is then fed into the sublattice part 3 through the nozzle 14J above which the end of the overflow pipe 11 is coaxially aligned

A device for grinding materials works in the following way.

Under the action of an alternating electromagnetic field created by the inductor 6, the ferromagnetic bodies 7 come into intensive motion in the supra-lattice part 3 of the swirl chamber 1, the layer of ferromagnetic bodies 7 ,. in which the latter acquire a random dv: nzhe1pie5 contributing to intensive grinding and mixing of the initial bulk material supplied through the pipe 9. Through fitting 13 into the sublattice part 4 of the working chamber 1 is supplied a gaseous coolant, for example, air that previously

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is heated either by cooling the windings of the inductor 6 or by an external preheater.

Next, the coolant passes the nozzle 14 and in the jet mode enters the end of the overflow pipe 11, the bulk material from the vortex layer of ferromagnetic bodies 7 is injected through the gap between the upper section of the nozzle 14 and the end of the overflow pipe 11, When moving the bulk material in the vortex layer from nozzle 9 to the end The overflow pipe 11 is subjected to intensive grinding, mixing, heating under discharge and drying. When brought to the grating 2, the bulk material acquires an angular velocity in the direction of rotation of the electromagnetic field 5 with this, the centrifugal force will act on it, directed to the wall of the working chamber 1.

However, the bulk material is affected in this area by the force ejected by the jet emanating from the nozzle 14, which is directed at. the opposite side (from the wall of the working chamber 1 - and its center). It is known that the greater the mass of a particle of a granular material (undersized and undried) 5 the greater the value of the centrobel force, and vice versa. Thus, by adjusting the ratio of these forces, it is possible to ensure the necessary residence time of the material in the working chamber 1 and to carry out a qualitative unloading of the finished product.

The adjustment can be made by changing the flow rate of the coolant from the nozzle 14, changing the gap between the nozzle 14 and the overflow pipe 1 1, as well as changing its cross-sectional area.

However, the flow rate of the heat carrier in the transverse section of the overflow pipe 11 must ensure a stable pneumotranspto rt of the finished product, i.e., crushed and dried .. The penetration of ferromagnetic bodies 7 into the overflow pipe 11 is hardly possible, either the density is much higher than the same parameters of the material being processed. In order to completely prevent ferromagnetic bodies 7 from entering the ejection zone and into the overflow pipe i1, the latter can be equipped with a perforated confuser (not shown), which is installed at its bottom end.

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The proposed device allows high-quality processing of wet bulk materials — fine grinding, high-intensity mixing, and drying under vacuum under continuous operation.

Additional advantages of this device are ease of maintenance due to the tightness of the structure, as well as easy changeover of the structure when switching to a new material or mode of operation due to a change in flow rate and variation of the gap between the nozzle and the end of the overflow pipe.

Formulas

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Claims (2)

1. A device for grinding materials comprising a vertical working chamber divided by a horizon; partition wall on the upper section with ferromagnetic bodies, covering an inductor of a rotating magnetic field, and a lower section with a coolant approach fitting, loading and unloading connections placed in the upper part of the working chamber, characterized in that, in order to improve the quality of the finished product by adjusting the processing time, it is equipped with an overflow pipe installed in the discharge the nozzle, and the nozzle placed in the horizontal grid, while the overflow pipe and nozzle 2 are installed along the axis of the working chamber, and the overflow pipe is above the nozzle with a gap with the possibility of across the axis. 2. The device according to claim 1, of which is, in order to reduce the entrainment of ferromagnetic bodies, it is equipped with a perforated confusor mounted on the end of the overflow pipe.