RU2163521C2 - Separating device of radiometric separator - Google Patents

Abstract

FIELD: separating actuating mechanisms of radiometric separators; applicable in mineral concentration branch of mining industry. SUBSTANCE: separating device includes reversing drive with gate mechanism. The latter is made in the form of two baffle gates secured by hinges and articulated movably by frame installed on gate props. Frame is connected with reversing drive through compensator of axial displacement, for instance, flexible coupling. Frame side walls have recesses for longitudinal displacement in them of gate props on rolling bearings. EFFECT: high speed response and productivity in batch sorting of materials into three fractions simultaneously, higher operating reliability including that at subzero ambient temperatures. 2 cl, 4 dwg

Description

 The invention relates to dividing actuators of a slide-type radiometric separator and can be used in the mining industry of the mining industry.

 A separation device is known, including a pneumatic actuator, an electro-pneumatic valve and a rotary gate with a plate pneumatic actuator and a cover covering it with a window for moving the air supply pipe, spring-loaded stops / USSR Author's Certificate N 1577144, cl. B 03 B 13/00, 1989 /.

 The known device is not applicable for batch sorting of materials, inefficient, does not allow sorting into three fractions according to the concentration of the useful component, requires an additional energy carrier - compressed air.

 A device for the automatic sorting of lumpy mineral raw materials, including a feed mechanism for sortable material, a radiometric unit, a control unit and an actuator comprising a gate with an arcuate protrusion at the end, mounted on a shaft, and an electromagnet with a shunt element, a polarized electromagnet, transformer, current pulse shaper / USSR author's certificate N 1105229, cl. B 03 B 13/00, 1983 /.

 The known device is not applicable for batch sorting of material, inefficient, does not allow sorting into three fractions, does not have sufficient reliability in operation at low ambient temperatures.

 Closest to the claimed is a device for implementing a method for sorting bulk material containing a feed mechanism for sortable material, an electronic control system, a nozzle with the ability to supply compressed air, three receiving hoppers / USSR Author's Certificate N 697192, class. B 03 B 13/06, 1977 / - prototype.

 This device is not applicable for batch sorting of materials, inefficient, does not have the necessary reliability at low temperatures, requires additional energy and a compressed air supply system.

 The problem solved by the invention is to increase the reliability of operation in portion sorting mode, increase productivity, reduce structural complexity when dividing the sortable material into three fractions according to the content of the useful component, and increase the speed of the slide mechanism.

 The problem is solved in that in the separating device of the radiometric separator, comprising a reversible drive with a slide mechanism, according to the invention, the slide mechanism is made in the form of two pivotally mounted fenders, articulated movably mounted on the slide stops, connected to the drive through an axial displacement compensator, for example elastic the clutch, while the frame is provided with grooves on the side walls with the possibility of longitudinal displacement of the slide stops in them.

 In addition, rolling bearings are installed on the slide stops.

Comparative analysis with the prototype shows that the claimed solution is characterized in that:
- the slide mechanism is made in the form of two pivotally mounted fenders;
- fenders are articulated movably mounted on the slide stops;
- the frame is connected to the reversible drive through an axial displacement compensator, for example an elastic coupling;
- the frame is provided with grooves on the lateral surfaces with the possibility of longitudinal displacement of the slide stops in them;
- Rolling bearings are installed on the slide stops.

 Thus, the claimed solution meets the criterion of "novelty."

 Comparison of the proposed solutions with analogues did not allow them to identify signs that distinguish the claimed solution from the prototype, which allows us to conclude that the criterion of "inventive step".

 The invention is illustrated by drawings. FIG. 1 is a side view of the device, FIG. 2 is a top view in section along AA, FIG. 3, 4 - scheme of material separation.

 The separating device of the radiometric separator contains two pivotally mounted breaker gates 1, 2, frame 3, elastic coupling 4, reversible drive 6, grooves 6.7, rolling bearings 8, slide stops 9, 10.

 When the vertical position of the gate valves 1, 2, the sorted material falls into the central channel B, the gate stop 9 occupies the leftmost position in the groove 6, and the gate stop 10 - the extreme right in the groove 7.

 When a portion of the material with the presence of a useful component enters the separation zone, the reversing drive 5 through the frame 3 and the elastic coupling 4 acts on the gate valves, deflecting the latter and directing the portion of the material to the left or right channel depending on the concentration of the useful component in the portion of the material.

 If it is necessary to direct a portion of the material into channel A, the frame 3 moves to the left, the slide stop 10 moves to the left with the speed of the frame, blocking channel B with the plane of the gate 2 and directs the dose of material to channel A. At the same time, the slide stop 9 also moves to the left, but at a lower speed, since it partially rolls on bearings 8 along the free opening of groove 6, opening the slotted opening in channel A. As a result, channel B is blocked by gate 2, and in channel A a slotted opening is opened for spilling a portion of the material.

 If it is necessary to direct a portion of the material into the channel B, the frame 3 moves to the right, the slide stop 9 moves to the right with the speed of the frame, blocking the channel B with the plane of the slide 1 and directs the dose of material to the channel B, while the slide stop 8 also moves to the right, but at a lower speed rolling on bearings 8 along the free opening of the groove 7, opening the slotted opening in the channel B.

 With frequent actuation of the gate mechanism, one of the gates is constantly outside the “hard” mesh and, when the frame moves, the mass of one of the gates does not participate in the movement at the moment of shock, which increases the speed of the separating device as a whole, reduces contact wear and increases the reliability of the device.

 The separating device of the radiometric separator allows high-performance batch sorting of materials simultaneously into three fractions according to the content of useful components, structurally simple and reliable in operation, including at low ambient temperatures.

Claims (2)

 1. The separating device of the radiometric separator, comprising a reversible drive with a slide mechanism, characterized in that the slide mechanism is made in the form of two pivotally mounted fenders, articulated movably mounted on the slide stops, connected to the drive through an axial displacement compensator, for example an elastic coupling, this frame is provided with grooves on the side walls with the possibility of longitudinal displacement of the slide stops in them.  2. The separating device according to claim 1, characterized in that the rolling bearings are mounted on the slide stops.

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