CN216094209U

CN216094209U - Fine particle shaking table

Info

Publication number: CN216094209U
Application number: CN202122653195.8U
Authority: CN
Inventors: 李家林
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-03-22
Anticipated expiration: 2031-11-02

Abstract

The utility model relates to a fine particle shaking table, which comprises a shaking table head, a table surface, a sliding seat and a motor, wherein the table surface is supported on the sliding seat and moves in a reciprocating manner by a table head belt, the table head is driven by the motor, one side of the table surface is provided with an ore feeding groove and a water feeding groove, the table surface is distributed with a plurality of bars, the area of the plurality of bars on the table surface is a roughing area, the roughing area is adjacent to a plurality of selecting areas, the selecting area is adjacent to a fine selecting area, an inter-bar groove is arranged between the adjacent bars, the plurality of bars are provided with upper bar grooves, the cross section of each bar is in a truncated rectangle shape, the upper bar groove is arranged on the top of the truncated rectangle, the gap between the lower end and the higher end of the adjacent truncated rectangle forms an inter-bar groove, the fine selecting area is a climbing slope towards the fine selecting area, the slope extends to the roughing area to form a plurality of bars, and the connecting lines of the point of each bar are parallel to the intersection line of the fine selecting area and the plane. The utility model can better adapt to the separation requirement of fine-grained mineral aggregates, and improves the processing capacity and the recovery rate of the concentrate compared with the traditional shaking table.

Description

Fine particle shaking table

Technical Field

The utility model relates to mineral processing equipment, in particular to a fine particle shaking table.

Background

The shaking table is a device for sorting heavy metal minerals such as tungsten tin, and the shaking table is divided into a coarse sand shaking table, a fine sand shaking table and a slime shaking table, and is respectively suitable for mineral raw materials with different particle size ranges. Wherein the slime shaking table is also called a notch groove shaking table. No matter what kind of shaking table its bed surface is evenly distributed with the come the compound strip of difference, lets the ore pulp according to the proportion layering and move to the concentrate end when flowing, and light mineral easily suspends, and the lateral shifting speed is big, is washed into the tailing groove soon, and heavy mineral is difficult for suspending easily pastes the bed surface, and the lateral shifting speed is little, moves and becomes the concentrate towards the concentrate end under the effect of shaking easily. Because the occurrence state of target minerals in gangue minerals is complex, the dissociation condition of the target minerals and other minerals is different, the separation of light and heavy minerals on a bed surface is not a simple specific gravity separation process, whether the mineral of one grain can finally enter the concentrate depends on the size of the mineral, whether the mineral is connected with other minerals or not, whether factors such as the feeding speed, the concentration, the flushing water flow speed and the like are favorable for moving the mineral to a concentrate end or not, whether the mineral is flushed into a tailing tank by transverse water flow too early or not and the like. In the aspect of table concentration of tin ore, the target mineral cassiterite is often associated with minerals such as hematite, magnetite and the like to form the occurrence relationship of mutual interpenetration, wrapping and dip dyeing, the cassiterite and the minerals such as iron and the like exist in a mud shape due to long-term weathering effect of some oxidized ores when the grinded ore is ground to the fineness of 200 meshes, the granularity is fine to micron level, and the fine particles are easy to float away even if the specific gravity is large.

As mentioned above, the grooved table concentrator is a device for sorting fine and heavy minerals, and although the single-piece processing capacity is small, the occupied area of a factory building is large, and the recovery rate is not very high, the concentration is high, and concentrate can be obtained by one-time sorting, so that the grooved table concentrator is widely applied. For decades, the main separation equipment of the wolframite and stannum mine aiming at fine-grained mineral raw materials has been provided. And the main structure thereof is maintained as it is until now without much change. After long-term production application, the defects of the equipment emerge, and the main problem is that the complex strip is arranged singly, and the cross section shape is similar to a saw tooth shape, such as the shape of patents CN86206078U and CN 202087393U. The structure can not fully meet the separation requirement of fine-grained minerals, particularly the separation of fine-grained mineral aggregates with the granularity of 0.037-0.010mm, the processing capacity is difficult to improve, heavy mineral particles such as tin, tungsten and the like are easy to float away and enter tailings, and the recovery rate is not ideal. In many tin-tungsten resources, a considerable part of metals are distributed in the slime raw materials with fine particle size fractions, and the research and development of the conventional grooving table are carried out or improved, so that the improvement of the recycling level of the part of metal resources is of great significance.

Disclosure of Invention

Therefore, the utility model provides the fine particle shaking table which can better adapt to the sorting requirement of fine-grained mineral aggregates, obviously improves the technical and economic indexes such as treatment capacity, concentrate recovery rate and the like compared with the traditional shaking table, and improves the utilization level of mineral resources.

The utility model provides a fine particle shaking table, which comprises a shaking table head, a table surface, a sliding seat and a motor, wherein the table surface is supported on the sliding seat and moves to and fro by a head of the shaking table, the shaking table head is driven by the motor, one side of the table surface is provided with an ore feeding groove and a water feeding groove, and the table surface is distributed with coming and repeating strips.

The length of the complex cross section truncated rectangle is 15-20mm, the height of the lower end is 1-2mm, the height of the high end is 3-5.5mm, the upper groove of the strip is a V-shaped groove and is positioned in the middle of the top edge of the truncated rectangle, the width of the groove is 4-5mm, the depth of the groove is 1-3mm, and the width of the groove between strips is 5-10 mm.

The horizontal length of the truncated corner of the truncated rectangle is 5-7 mm.

The repeated selection area is a climbing inclined plane towards the fine selection area, the lower end of the inclined plane extends to the bottom of the groove between the bars of the coarse selection area, the bars are sharpened on the inclined plane, and the connection line of the point-extinction points of the bars is an inclined straight line which is parallel to the intersection line of the check area and the plane of the fine selection area.

The upper grooves of the bars are always parallel to the grooves between the bars and are closed on the inclined planes of the check areas.

The climbing gradient of the re-selection area is 0.5-1.2%.

The composite strips are made by painting paint ash on the layer plate layer of the bed surface, and raw paint is painted on the composite strips, the strip upper grooves and the strip inter-groove bottoms.

The stroke of the rocking bed head to the bed surface is 6-8mm, the stroke frequency is 360-.

The sorting process of the utility model comprises the following steps:

the ore slime raw materials are fed into the bed surface from the ore feeding groove in the form of ore pulp, the ore pulp enters the rough separation area, most gangue minerals are light minerals, the gangue minerals are quickly flushed into the tailing groove under the action of transverse water flow, heavy mineral particles such as tin and tungsten settle to the groove bottom of the inter-strip groove, the gangue minerals advance towards the concentrate end under the action of shaking of the bed surface, the ore pulp can form vortex in the inter-strip groove in the transverse flow process, the heavy minerals and other heavy mineral particles can be suspended and settled continuously, the heavy mineral particles can be kept moving towards the concentrate end in the groove quickly after settling, the light mineral particles are slowly and easily rolled away by the transverse water flow to enter the tailing, and the three motions are simultaneously carried out in each inter-strip groove. When the heavy mineral particles move to the check area along the groove, the heavy mineral particles are subjected to the action of flushing water, the light particles mixed in the heavy mineral particles are flushed away to enter tailings or secondary concentrates, when the remaining heavy mineral particles reach the concentration area, the flushing water flow is slowed down, the light particles remained in the heavy mineral particles are continuously flushed into the secondary concentrates or the tailings, and finally, qualified concentrate products are obtained.

The utility model has the advantages that the existence of the strip grooves reduces the possibility that heavy mineral particles are flushed into tailings by transverse water flow and increases the possibility of moving to the concentrate compared with the traditional zigzag grooving table, and the fine-particle heavy mineral at the top of a strip which floats on a suspension float can be quickly settled into the strip grooves to be continuously suspended and settled with mixed light mineral particles and perform secondary movement to the concentrate end, so that the movement has the effect of replenishing and recycling when approaching to a check region, a part of heavy mineral particles can be flushed into the concentrate or secondary concentrate, and the improvement of the mineral separation recovery rate is facilitated.

Proved by production trials, the method is used for selecting the tungsten-tin slime raw material with the grade of 0.037-0.010mm (400-. The processing capacity reaches 4-5 tons per table per day.

Therefore, the utility model can better adapt to the separation requirement of fine-grained mineral aggregates, and obviously improves the technical and economic indexes such as treatment capacity, concentrate recovery rate and the like compared with the traditional shaking table.

Drawings

FIG. 1 is a front view showing a schematic structure of the present invention (motor omitted).

FIG. 2 is a schematic plan view of the present invention (motor omitted).

Fig. 3 is a sectional view taken along line a-a (partially omitted).

FIG. 4 is a view of the portion B-B (partially omitted).

In fig. 1-4, the parts are numbered as follows:

1-steel frame; 2-shaking the bed head; 3-feeding the ore tank; 4-bed surface; 5-tension line; 6-a water supply tank; 7-a spring; 8-a slope regulating mechanism; 9-a sliding seat; 10-riffled; 11-primary selection area; 12-a re-selection area; 13-a fine selection area; 14-layer plate; 15-inter-groove; 16-upper grooves.

The dimensions of the cross-section of the composite strip, the grooves on the strip and the grooves between the strips shown in fig. 3 are as follows:

L=15-20mm；L₁=5-10mm；L₂=3-4mm；L₃=3-4mm；L₄=3-4mm；h₁=1-2mm；h₂=3-5.5mm；h₃=1-3mm。

wherein L is the length of a rectangular shape with truncated corners of the cross section of the complex bar; l is₁Is the width of the inter-strip groove; l is₂The width of the right shoulder of the upper groove of the strip; l is₃Is the width of the groove on the strip, L₄The width of the left shoulder of the upper groove of the strip; l is₅The truncated horizontal length of the truncated rectangle; h is₁The height of the lower end of the rectangular cross section truncated by the complex number; h is₂The height of the high end of the rectangle with truncated cross section is the same as the height of the high end of the rectangle with truncated cross section.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in figures 1-4, the rocking bed head 2, the steel frame 1, the spring 7, the tension line 5, the slope adjusting mechanism 8, the sliding seat 9, the ore feeding groove 3, the water feeding groove 6 and the like are basically consistent with those of the conventional grooving rocking bed. The dimensions and the basic structure of the bed top 4 are also the same. Except that the shape and arrangement of the rifles 10 are changed. The bed surface is roughly divided into three areas, namely a rough selection area 11 in the area where the repeated bars are located, and a check area 12 and a fine selection area 13 which are adjacent to the rough selection area.

The cross section of the compound strip of the traditional grooved shaking table is triangular, only the vertex angle is slightly cut, the cross section of each compound strip forms a sawtooth shape, a large-opening inclined-pulling V-shaped groove is arranged between the adjacent compound strips, the structure ensures that heavy mineral particles are easily rolled away by vortex generated when transverse water flows through, the heavy mineral particles are brought into tailings, and the metal recovery rate is reduced. The cross section of each composite strip is a truncated rectangle, an inter-strip groove 15 is formed between every two adjacent composite strips, two groove walls of the inter-strip grooves are vertical and are high in the front and low in the rear, the structure enables transverse water to flow through the grooves to generate large eddy currents, light mineral particles are easy to suspend and pass through the high groove walls to be taken away, heavy mineral particles suspend and slowly settle fast and are difficult to pass through the high groove walls, and more chances are provided for moving towards a concentrate end to form concentrate.

The upper groove 16 is a V-shaped groove and is arranged at the center of the top edge of the truncated rectangle, and the width of the groove is L₃Typically 4-5mm, groove depth h₃Is 1-3mm of left shoulder width L of the upper groove₄And a width of the right family L₂Equal, 3-4 mm. The grooves on the strips are always parallel to the grooves between the strips.

When the mineral separation device approaches to the check area, the inter-strip groove begins to climb, the groove wall is gradually shortened until the check area is completely disappeared, the barrier is not transversely formed, lighter mineral particles mixed in the inter-strip groove are favorably taken away by transverse water flow, the fine selection effect is achieved, after the re-selection area and the fine selection area are moved, the residual light mineral particles are basically washed away, and the residual concentrate enters the concentrate groove. When the heavy mineral particles in the groove on the strip reach the check region, the heavy mineral particles and the heavy mineral in the groove between the strips are merged to pass through the check region and the concentration region, and finally become concentrate. The sample strip upper groove plays a role in supplementing and recovering heavy minerals and has great significance for sorting fine particle ores.

The bed surface covering strip is formed by directly painting paint ash on the laminated plate 14 of the bed surface in batches by using a traditional method, and the outer surface of the bed surface covering strip is painted with paints such as raw paint. Due to the inter-strip grooves, the number of the reciprocating strips on a bed surface with the traditional size is reduced to 58-62 strips. Compared with the traditional 70-90 strips, the number of the strips is greatly reduced, and the manufacturing cost is reduced.

The remaining non-referenced parts and reference numerals are as described above.

Claims

1. A fine particle shaking table comprises a shaking table head, a table surface, a sliding seat and a motor, wherein the table surface is supported on the sliding seat and moves in a reciprocating manner through a shaking table head belt, the shaking table head is driven by the motor, an ore feeding groove and a water feeding groove are formed in one side of the table surface, and reciprocating bars are distributed on the table surface.

2. The fine particle rocking bed according to claim 1, wherein the length of the truncated rectangle having a cross section is 15 to 20mm, the height of the lower end is 1 to 2mm, the height of the upper end is 3 to 5.5mm, the upper groove is a V-shaped groove, the width of the groove is 4 to 5mm, the depth of the groove is 1 to 3mm, and the width of the groove between the bars is 5 to 10 mm.

3. The fine particle rocking platform according to claim 1, wherein the truncated rectangle has a truncated horizontal length of 5 to 7 mm.

4. The fine particle rocking bed according to claim 1, wherein the repeating section is a sloping surface sloping toward the fine section, the lower end of the sloping surface extending to the bottom of the groove between the bars in the coarse section to allow the bars to be struck and extinguished on the sloping surface, and the line connecting the striking and extinguishing points of each bar is an inclined straight line parallel to the line connecting the planes of the fine section and the check section.

5. The fine particle rocking platform according to claim 4, wherein the grooves on the bars are parallel to the grooves between the bars and are tapered at the slope of the check region.

6. The fine particle rocking apparatus according to claim 4, wherein the gradient of the re-selection zone is 0.5 to 1.2%.

7. The fine particle rocking platform according to claim 1, wherein the plurality of bars are made by painting a layer of a bed surface with paint, and the plurality of bars, the upper grooves of the bars and the bottoms of the grooves between the bars are painted with raw paint.

8. The fine particle rocking bed according to claim 1, wherein the stroke of the head of the rocking bed to the bed surface is 6-8mm, and the stroke frequency is 360-.