CN216606149U - Centrifugal concentrating machine for sorting fine-grained minerals - Google Patents

Abstract

The utility model provides a centrifugal separator for sorting fine-grained minerals, which comprises a support, wherein a separation groove is arranged in the support, the separation groove is of a spiral structure with a small upper part and a large lower part, the separation groove can rotate in the support, a discharge hole is formed at the bottom end of the separation groove, a receiving disc is arranged right below the separation groove, two annular grid blocks which are coaxially arranged are arranged on the receiving disc, a concentrate groove, a middling groove and a tailing groove which are of an annular structure are formed between the grid blocks, and an input pipe and a feed groove for feeding materials to the upper part of the separation groove are arranged at the upper part of the support. The spiral separation groove with a small upper part and a large lower part is arranged and is driven to rotate by the rotating shaft, minerals to be selected are acted by centrifugal force in the separation groove, so that the installation quality and the size of the minerals are distributed at different parts in the separation groove, finally, the dispersed minerals are respectively collected, and the separation effect is good; simple structure, practical mode is convenient.

Description

Centrifugal concentrating machine for sorting fine-grained minerals

Technical Field

The utility model belongs to the technical field of mineral processing equipment, and relates to a centrifugal separator for separating fine-grained minerals.

Background

The spiral chute or spiral ore washer is a common ore dressing equipment, ore pulp is fed into a spiral sheet, moves along the spiral sheet under the action of gravity and water flow, and generates centripetal force under the action of the gravity and the water flow to change the moving track of materials, so that the separation and the sorting of minerals are realized. That is, on the existing spiral chute or spiral ore washer, the gravity among mineral particle sizes and the ore pulp concentration have great influence on spiral separation, so that fine-grained minerals are difficult to be separated by using the spiral chute. Generally, the mineral size effectively separated by the spiral chute and the spiral ore washer is generally between 0.1mm and 1mm, and the spiral ore washer is often used as roughing equipment for minerals such as coal mines, cassiterite, white wurtzite and the like.

Most mineral resources in China have the characteristics of low grade, fine embedding particle size and the like, more metal or nonmetal minerals are separated and selected to be ground to be less than 74 mu m, and some minerals are ground to be less than 37 mu m, so that the minerals can be effectively selected. Because the material granularity is fine, when the spiral chute or the spiral concentrating machine is used for concentrating, the centripetal force variation difference generated by the material under the action of gravity and water flow is small, the spiral chute and the spiral concentrating machine are difficult to concentrate effectively, most ores need to be concentrated by adopting other concentrating technologies with higher concentrating cost, the process flow is complex, and the processing cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a centrifugal separator for separating fine-grained minerals, which aims at solving the problems in the prior art.

Therefore, the utility model adopts the following technical scheme:

the utility model provides a select centrifugal concentrator of fine grit level mineral, includes the support, be equipped with the separation tank in the support, the separation tank is big-end-up's heliciform structure, and the separation tank can be at the support internal rotation, and the bottom of separation tank forms the discharge gate, be equipped with the pivot on the support, the pivot coincides with the axial lead of separation tank mutually, is equipped with a plurality of connecting rods along its length direction in the pivot, the connecting rod is connected with the separation tank, be equipped with the take-up (stock) pan under the separation tank, be equipped with two annular check that are coaxial setting on the take-up (stock) pan, the check keep off the take-up (stock) pan and separate concentrate groove, middlings groove and the tailings groove that is annular structure, the upper portion of support is equipped with the raceway and is used for the charge chute of defeated material to separation tank upper portion.

Further, the rotating shaft is vertically arranged.

Furthermore, the top end of the rotating shaft is connected with a motor used for driving the rotating shaft to rotate, and the motor is fixed on the support.

Further, the motor is a servo motor.

Further, the middling groove is located the middle part of discharge gate width direction, and concentrate groove and tailing groove are located the both sides of discharge gate width.

Furthermore, the bottom of the material receiving disc is obliquely arranged.

Furthermore, a spray head is arranged in the middle of the support.

The utility model has the beneficial effects that: the spiral separation groove with a small upper part and a large lower part is arranged and is driven to rotate by the rotating shaft, minerals to be separated are acted by centrifugal force in the separation groove, so that the installation quality and the size of the minerals are distributed at different parts in the separation groove, finally, the dispersed minerals are respectively collected, and the separation effect is good; simple structure, practical mode is convenient.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

in the figure, 1-bracket, 2-sorting tank, 3-rotating shaft, 4-connecting rod, 5-motor, 6-discharge port, 7-receiving disc, 8-baffle, 9-concentrate tank, 10-middling tank, 11-tailing tank, 12-water pipe, 13-feeding tank, 14-spray head, 15-discharge pipe.

Detailed Description

The utility model is described in detail below with reference to the accompanying drawings:

as shown in fig. 1 and 2, a centrifugal separator for separating fine-grained minerals comprises a bracket 1, a separation groove 2 is arranged in the bracket 1, the separation groove 2 is in a spiral structure with a small upper part and a large lower part, the separation groove 2 can rotate in the bracket 1, the separation groove 2 is made of glass fiber reinforced plastics and has good wear resistance, specifically, a rotating shaft 3 is vertically arranged on the bracket 1, the rotating shaft 3 is coincident with the axial lead of the separation groove 2, a plurality of connecting rods 4 are arranged on the rotating shaft 3 along the length direction of the rotating shaft, the connecting rods 4 are connected with the separation groove 2, the separator drives the separation groove 2 to rotate through the rotating shaft 3, the top end of the rotating shaft 3 is connected with a motor 5 for driving the rotating shaft 3 to rotate, the motor 5 is fixed on the bracket 1, the motor 5 adopts a servo motor for controlling the speed, a discharge port 6 is formed at the bottom end of the separation groove 2, a receiving disc 7 is arranged under the separation groove 2, the receiving disc 7 is in a circular structure, and the bottom of the receiving disc 7 is arranged in an inclined way, it is coaxial setting with pivot 3, is equipped with two on the take-up (stock) pan 7 and is the annular check that coaxial setting keeps off 8, and the check keep off 8 is separated take-up (stock) pan 7 from inside to outside with this for concentrate groove 9, middlings groove 10 and tailings groove 11, specifically, middlings groove 10 is located the middle part of 6 width direction of discharge gate, and concentrate groove 9 and tailings groove 10 are located the both sides of 6 width of discharge gate.

The upper part of the bracket 1 is provided with a water delivery pipe 12 and a feeding tank 13 for delivering materials to the upper part of the sorting tank 2, and the middle part of the bracket 1 is provided with a spray head 14 for spraying water into the sorting tank 2.

In order to discharge the sorted mineral aggregate, the bottom of the concentrate tank 3, the bottom of the middling tank 10 and the bottom of the tailing tank 11 are respectively connected with a discharge pipe 15, and the discharge pipe 15 is positioned on the lower side of the receiving disc 7.

The use mode of the utility model is as follows:

when the separator is used, the motor 5 is started firstly to drive the rotating shaft and the separation tank 2 to rotate, water and mineral aggregates to be separated are added into the upper part of the separation tank 2 by the water conveying pipe 12 and the feeding tank 13, the mineral aggregates mixed with the water move to the lower end of the separation tank 2 under the action of gravity, meanwhile, centrifugal force is generated on mineral particles due to the rotation of the separation tank 2, the particles with smaller mass volume move to the edge of the separation tank 2 far away from the axial lead under the action of the centrifugal force, the particles with larger mass volume are positioned at the position close to the axial lead of the separation tank 2, the rest particles are positioned in the middle part of the separation tank 2 in the width direction, the separation tank 2 is of a structure with a small upper part and a large lower part, the mineral particles can be better dispersed in the rotating process, finally, the particles are discharged out of the separation tank 2 from the discharge port 6 at the bottom end of the separation tank 2, the discharged mineral particles with larger mass volume enter the concentrate tank 9, and the mineral particles with smaller mass volume enter the tailing tank 11, the other particles enter the middling groove 10 to complete the separation of minerals, water in the separation groove 2 can be sprayed into the separation groove 2 through the spray head 14 to supplement the water amount in the separation groove 2 in the separation process, so that the minerals can slide down normally, and finally the minerals in the concentrate groove 9, the middling groove 10 and the tailing groove 11 are discharged through the discharge pipe 15.

Claims (8)

1. The centrifugal concentrator for sorting fine-grained minerals is characterized by comprising a support (1), wherein a sorting groove (2) is formed in the support (1), the sorting groove (2) is of a spiral structure with a small upper part and a large lower part, the sorting groove (2) can rotate in the support (1), a discharge hole (6) is formed in the bottom end of the sorting groove (2), a rotating shaft (3) is arranged on the support (1), the rotating shaft (3) coincides with the axis of the sorting groove (2), a plurality of connecting rods (4) are arranged on the rotating shaft (3) along the length direction of the rotating shaft, the connecting rods (4) are connected with the sorting groove (2), a receiving disc (7) is arranged under the sorting groove (2), two annular grid baffles (8) which are coaxially arranged are arranged on the receiving disc (7), and the grid baffles (8) separate the receiving disc (7) into a fine ore groove (9) with an annular structure, A middling groove (10) and a tailing groove (11), wherein the upper part of the bracket (1) is provided with a water conveying pipe (12) and a feeding groove (13) for conveying materials to the upper part of the separation groove (2).

2. A centrifugal concentrator for classifying fine fraction minerals according to claim 1 wherein the shaft (3) is vertically disposed.

3. A centrifugal separator for sorting fine fraction minerals according to claim 1, wherein a motor (5) is connected to the top end of the shaft (3) for driving the shaft (3) in rotation, the motor (5) being secured to the support (1).

4. A centrifugal concentrator for classifying fine fraction minerals according to claim 3 wherein the motor (5) is a servo motor.

5. A centrifugal concentrator for classifying fine fraction minerals according to claim 1 wherein the middling trough (10) is located in the middle of the width of the discharge opening (6) and the concentrate (9) and tailings (11) troughs are located on either side of the width of the discharge opening (6).

6. A centrifugal concentrator for classifying fine-grained minerals according to claim 1, characterized in that the bottom of the receiver plate (7) is inclined.

7. A centrifugal concentrator for classifying fine fraction minerals according to claim 1 wherein the central portion of the support (1) is provided with a spray head (14).

8. A centrifugal concentrator for classifying fine-grained minerals according to claim 1, characterized in that the bottom of the concentrate, middlings and tailings troughs (9, 10, 11) is connected with a discharge pipe (15), respectively.

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