RU2361656C2 - Device for loading of dehydration hopper - Google Patents

Abstract

FIELD: technological processes.

SUBSTANCE: invention is related to equipment for dehydration of loose materials and may be used in coal, mining and other industries, where water is used for hydraulic transport and enrichment of loose materials. Device for loading of dehydration hopper includes supply chute, dehydration hopper, funnel with inclined bottom installed with the possibility of rotation, in lower half of which outlet hole is arranged, at that receiving part of rotary funnel is arranged in the form of inclined projection arranged at the angle of 45-55°, on side wall of which reflectors are rigidly fixed, which provide for suppression of pulp flow energy and funnel rotation, and exhaust hole is located in the lower half of funnel inclined bottom, which provides for intense passing of pulp and arrangement of loose material by size from centre to periphery of hopper, at that supply chute is installed perpendicularly to radius inside funnel and has cut along chord of its circumference.

EFFECT: provision of even loading of material into dehydration hopper and suppression of pulp energy flow.

2 dwg

Description

The invention relates to equipment for the dehydration of bulk materials and can be used in coal, mining and other industries, where water is used for hydrotransport of bulk materials.

A device for the dehydration of bulk materials [1], including the supply of pulp, a dewatering tank with double perforated walls with a conical bottom and a shutter, above which there is a sieve with cells, the size of which increases to the periphery of the tank.

The disadvantages of the known device are the difficulty of supplying the pulp to the center of the cone, the small throughput of the perforated cone sieve, the uneven loading of material from the center of the tank to the periphery.

The closest technical solution adopted for the prototype is a device for loading a cone crusher [2], which includes a hopper with a feeder, under which a rotating funnel and a tray are installed in the side wall to release material, located above the receiving capacity of the crusher.

The disadvantages of the known device are that it is intended for loading dry materials, the need to use a drive for uniform rotation of the funnel and the uneven loading of materials in fractions from the center to the periphery of the receiving tank.

The proposed technical device solves the problem of uniform loading of the material into the dewatering hopper and damping the energy of the fluid flow transporting bulk material.

The solution to this problem is achieved by the fact that the receiving part of the funnel is made in the form of an inclined ledge installed at an angle of 45-55 °, on the side wall of which reflectors are rigidly mounted, providing damping of the pulp flow energy and rotation of the funnel, and the outlet is located in the lower half of the inclined bottom funnels, which provides intensive transmission of pulp and uniform packing of bulk material by size from the center to the periphery of the hopper, while the feed chute is installed perpendicular to the radius of the inside When the funnel section and has chordal its circumference.

Figure 1 shows a section of a device for loading dewatering hoppers, side view.

Figure 2 presents a section bB of figure 1.

The device consists of a feed chute 1, a dewatering hopper 2, a rotating funnel 3 with an inclined bottom 4, in the lower half of which an outlet 5 is made, and the upper inner receiving part is made in the form of an inclined ledge 6, on the side wall of which reflectors 7 are rigidly mounted, providing quenching of flow energy and rotation of the funnel. In this case, the inlet chute 1 is installed perpendicular to the radius inside the rotating funnel 3 and has a slice 8 along the chord of its circumference.

The operation of the device is as follows.

The pulp along the inlet chute 1 is discharged onto an inclined ledge 6 and reflectors 7 of the funnel 3, which starts and constantly rotates under the influence of the energy of the input stream. The pulp flows down the ledge 6 to the inclined bottom 4 and through the outlet 5 enters the dewatering hopper 2. The tangential cut 8 of the inlet chute 1 ensures uniformity of the pulp supply to the reflectors 7, which provide different speeds of rotation of the funnel 3 depending on the energy of the input stream. The inclined bottom 5 of the funnel 3 ensures the laying of bulk material in fractions from the center to the periphery of the hopper due to gravitational forces, and the uniformity of loading is ensured by the rotation of the funnel 3.

Information sources

1. Battaglia A. Dehydration of enrichment products and washing water circulation. - M .: Nedra, 1967. - P.73-76.

2. A.S. USSR No. 603427. A device for dewatering coarse materials. 1978. Bull. No. 15.

3. Kirzkhberg G. Mineral processing. - M.: Gosgortekhizdat, 1960 .-- 351 p.

4. A.S. USSR No. 1585259. The method of loading bulk materials from a vertical hopper with a lower outlet and a tapering lower part 1990. Bull. No. 30.

5. A.S. USSR No. 1503834. Device for dewatering granular materials. 1989. Bull. Number 32.

Claims (1)

A device for loading a dewatering hopper, including a feed chute, a dewatering hopper, a rotatable funnel with an inclined bottom rotatable in the lower half of which an outlet is made, characterized in that the receiving part of the funnel is made in the form of an inclined ledge installed at an angle of 45-55 ° , on the side wall of which reflectors are rigidly mounted, providing damping of the pulp flow energy and rotation of the funnel, and the outlet is located in the lower half of the inclined bottom of the funnel, This provides an intensive and uniform transmission of the pulp stacking bulk material particle size from the center to the periphery of the hopper, wherein the feed trough is mounted perpendicularly and radially inside the funnel is cut along a chord of its circumference.

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