Grade analysis device for floating tail gravity concentrate

Abstract

The utility model discloses a size fraction analysis device for floating tail reselection concentrate, which comprises a plurality of screen drums distributed up and down, screen plates are arranged in the screen drums, the sizes of screen holes on the screen plates are sequentially reduced from top to bottom, a connecting rod for supporting is arranged on the outer side surface of each screen drum, and the connecting rods are mutually staggered; the bottom ends of the connecting rods are fixedly connected with connecting plates, weighing tables are arranged on the lower surfaces of the connecting plates, supports used for supporting are arranged on the lower surfaces of the weighing tables, and the multiple sets of weighing tables and the connecting plates are arranged in a vertically spaced and staggered mode. Mineral aggregates are screened layer by layer through a plurality of screen drums which are distributed up and down, the mineral aggregates with different size fractions are separated and remained in the corresponding screen drums, and then the mineral aggregates are weighed by the corresponding weighing platforms, so that the proportion of the mineral aggregates with different size fractions in the whole mineral aggregates can be analyzed, the operation is simple, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of floating tailings gravity separation concentrate, in particular to a particle size analysis device for floating tailings gravity separation concentrate. Background Art

[0002] Laboratory Nelson concentrator is one of the important equipment in the field of gravity separation. It is often used to process coarse-grained and high-density ores, or to conduct experimental research on the recovery of precious metals such as gold, platinum, and palladium from solid materials. In the laboratory research of floating tailings gravity separation concentrate, it is necessary to analyze the particle size of floating tailings gravity separation concentrate. For this purpose, we propose a particle size analysis device for floating tailings gravity separation concentrate. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a particle size analysis device for floating tailings gravity separation concentrate. The ore is screened layer by layer through a plurality of sieve cylinders distributed up and down, and the ore of different particle sizes is separated and retained in the corresponding sieve cylinders, and then weighed by the corresponding weighing platform. The proportion of the ore of different particle sizes in the overall ore can be analyzed. The operation is simple and easy to use, and the problems in the background technology can be effectively solved.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a particle size analysis device for floating tailings gravity separation concentrate, comprising a plurality of screen cylinders distributed up and down, each of which is provided with a screen plate, the sizes of the screen holes on the plurality of screen plates decrease from top to bottom, and the outer surface of each screen cylinder is provided with a connecting rod for support, and the connecting rods are staggered with each other; a connecting plate is fixedly connected to the bottom end of the connecting rod, a weighing platform is provided on the lower surface of the connecting plate, and a bracket for support is provided on the lower surface of the weighing platform, and a plurality of groups of weighing platforms and connecting plates are spaced and staggered up and down; a material receiving barrel is provided on the lower side of the lowest screen cylinder, and a support leg is provided on the lower surface of the material receiving barrel; an auxiliary stirring mechanism is provided inside the screen cylinder.

[0005] As a preferred technical solution of the utility model, the side surfaces of the screen cylinder and the receiving cylinder are both hingedly provided with discharge doors, and each discharge door is staggered with the adjacent connecting rod.

[0006] As a preferred technical solution of the utility model, the auxiliary stirring mechanism includes a telescopic rod arranged on the lower surface of the external fixed frame, the movable end of the telescopic rod is fixedly connected to a movable plate, the upper surface of the movable plate is provided with a driving motor, the output shaft of the driving motor passes through the lower surface of the movable plate and is connected to the rotating shaft through a coupling, a through hole corresponding to the rotating shaft is opened at the center of the upper surface of each screen plate, and a plurality of groups of stirring blades for stirring the mineral materials in each screen cylinder are evenly arranged on the outer surface of the rotating shaft.

[0007] As a preferred technical solution of the utility model, a retaining ring is fixedly provided on the outside of the through hole on the upper surface of the sieve plate, a clamping ring matching the retaining ring is provided on the outer surface of the rotating shaft, and the stirring blade is provided on the outer surface of the clamping ring.

[0008] As a preferred technical solution of the utility model, two retaining rings are provided, the two retaining rings are arranged concentrically and at a certain distance, and the lower surface of the clamping ring is respectively provided with clamping grooves corresponding to the two retaining rings.

[0009] As a preferred technical solution of the utility model, a diameter-reducing portion is provided on the rotating shaft, and the diameter of the diameter-reducing portion is smaller than the diameter of the through hole.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the ore is screened layer by layer through a plurality of sieve drums distributed up and down, and the ore of different particle sizes is separated and retained in the corresponding sieve drums, and then weighed by the corresponding weighing platform, so that the proportion of the ore of different particle sizes in the overall ore can be analyzed, and the operation is simple and easy to use; the corresponding number of sieve drums can be set according to the type of ore and experimental needs, or the sieve plates of different mesh sizes can be replaced to perform particle size analysis, which is more convenient to use; the ore in the sieve drum is stirred by the auxiliary stirring mechanism, so that the ore of smaller particle size can be prevented from being blocked by the ore of larger particle size and unable to fall, which greatly improves the screening efficiency and can improve the accuracy of particle size analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 For this utility model Figure 1 A magnified view of the structure at A;

[0013] Figure 3 It is a side view structural schematic diagram of the utility model;

[0014] Figure 4 It is a schematic diagram of the top view structure of the utility model;

[0015] Figure 5 It is a partial structural schematic diagram of the utility model.

[0016] In the figure: 1 screen drum, 2 screen plate, 3 connecting rod, 4 bracket, 5 weighing platform, 6 connecting plate, 7 material receiving barrel, 8 supporting legs, 9 discharging door, 10 telescopic rod, 11 movable plate, 12 driving motor, 13 rotating shaft, 14 stirring blade, 15 retaining ring, 16 clamping ring, 17 clamping groove, 18 reducing part. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-5 The utility model provides a technical solution: a particle size analysis device for floating tailings gravity separation concentrate, comprising 3-6 screen cylinders 1 distributed up and down, each of which is provided with a screen plate 2, and the sizes of the screen holes on all the screen plates 2 decrease from top to bottom, so as to facilitate the classification and screening of different particle sizes of ore materials. The outer surface of each screen cylinder 1 is provided with a connecting rod 3 for support, and the connecting rods 3 are staggered to avoid mutual influence; the bottom end of the connecting rod 3 is fixedly connected with a connecting plate 6, and the lower surface of the connecting plate 6 is provided with a weighing platform 5, and the lower surface of the weighing platform 5 is provided with a bracket 4 for support. Multiple groups of weighing platforms 5 and connecting plates 6 are spaced and staggered up and down, and each weighing platform 5 is used to weigh the weight of the screen cylinder 1 connected to it and the mineral material inside it. The mineral material is screened layer by layer through multiple screen cylinders 1 distributed up and down, and the mineral material of different particle sizes is separated and retained in the corresponding screen cylinder 1, and then weighed by the corresponding weighing platform 5, so that the proportion of the mineral material of different particle sizes in the overall mineral material can be analyzed. The operation is simple and easy to use. At the same time, according to the type of mineral material and experimental needs, a corresponding number of screen cylinders 1 can be set or the screen plates 2 with different mesh sizes can be replaced to perform particle size analysis, which is more convenient to use.

[0019] Preferably, a receiving cylinder 7 is provided on the lower side of the lowermost screen cylinder 1 for receiving the material screened by the last screen cylinder 1, and no screen plate is provided inside the receiving cylinder; a support leg 8 is provided on the lower surface of the receiving cylinder 7, and the support leg 8 does not contact any connecting rod 3 and bracket 4.

[0020] According to a preferred technical solution, the side surfaces of the screen drum 1 and the receiving drum 7 are both hingedly provided with discharge gates 9 for discharging the ore after screening and weighing, and each discharge gate 9 is staggered with the adjacent connecting rod 3 to avoid affecting the discharge and weighing.

[0021] The preferred technical solution is that an auxiliary stirring mechanism is arranged inside the sieve drum 1, and the auxiliary stirring mechanism includes a telescopic rod 10 arranged on the lower surface of the external fixed frame. The telescopic rod 10 can be selected as an electric push rod, a cylinder or a hydraulic cylinder, etc. The movable end of the telescopic rod 10 is fixedly connected to a movable plate 11, and a driving motor 12 is arranged on the upper surface of the movable plate 11. The output shaft of the driving motor 12 passes through the lower surface of the movable plate 11 and is connected to the rotating shaft 13 through a coupling. The center of the upper surface of each sieve plate 2 is provided with a corresponding rotating shaft 13. The outer surface of the rotating shaft 13 is evenly provided with a plurality of stirring blades 14 for stirring the ore materials in each sieve cylinder 1. The movable plate 11 is lifted and lowered by the telescopic rod 10, thereby driving the driving motor 12, the rotating shaft 13 and the stirring blades 14 to lift and lower, stirring and shifting the ore materials in the sieve cylinder 1, so that the ore materials can pass through the mesh holes on the sieve plate 2 more quickly and fall into the next sieve cylinder 1, which can prevent the ore materials with smaller particle sizes from being blocked by the ore materials with larger particle sizes and unable to fall, thereby greatly improving the screening efficiency and the accuracy of the particle size analysis.

[0022] At the same time, since the stirring blade 14 can be raised and lowered, the distance between it and the screen plate 2 can be adjusted, and it can be adjusted according to the amount of ore. When there is a lot of ore, the stirring blade 14 is set at a lower position, first stirred and stirred evenly, so that most of the ore is screened, and then the stirring blade 14 is adjusted to a higher position, and the ore is stirred from the upper side, so that the ore can be screened faster and more efficiently.

[0023] The telescopic rod 10 and the drive motor 12 are electrically connected to the external control switch, and the telescopic rod 10 and the drive motor 12 are electronic components commonly used in the prior art. Their specific structures, working principles and circuit connections are well-known technologies and will not be described in detail here.

[0024] A further preferred technical solution is that a retaining ring 15 is fixedly provided on the outside of the through hole on the upper surface of the sieve plate 2, a retaining ring 16 matching the retaining ring 15 is provided on the outer surface of the rotating shaft 13, and the stirring blade 14 is arranged on the outer surface of the retaining ring 16. By clamping the retaining ring 16 to the outside of the retaining ring 15, the mineral material can be prevented from passing through the through hole into the next sieve cylinder 1, thereby improving the accuracy of particle size analysis.

[0025] Furthermore, two retaining rings 15 are provided, and the two retaining rings 15 are concentrically arranged with a certain distance therebetween. The lower surface of the clamping ring 16 is respectively provided with clamping grooves 17 corresponding to the two retaining rings 15. The clamping ring 16 is clamped on the two retaining rings 15 through the clamping grooves 17, which further improves the sealing between the clamping ring 16 and the retaining ring 15, making it more difficult for the mineral material to pass through the through hole into the next screen cylinder 1.

[0026] There is a certain distance between the rotating shaft 13 and the inner wall of the through hole, and between the clamping ring 16 and the retaining ring 15. When the rotating shaft 13 rotates, no friction occurs, thereby avoiding wear of various components and extending the service life of the device.

[0027] According to a preferred technical solution, a reducing portion 18 is provided on the rotating shaft 13, and the diameter of the reducing portion 18 is smaller than the diameter of the through hole. After the screening is completed, the telescopic rod 10 drives the movable plate 11 to lift upward, and the rotating shaft 13 moves upward with the movable plate 11 so that the reducing portion 18 reaches the inside of the through hole, so that the rotating shaft 13 is not in contact with the sieve plate 2, thereby avoiding the auxiliary stirring mechanism from affecting the weighing results of each sieve cylinder 1, and further improving the accuracy of the particle size analysis.

[0028] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A particle size analysis device for tailings gravity separation concentrate, comprising a plurality of screen cylinders (1) distributed vertically, characterized in that: The sieve drum (1) is provided with a sieve plate (2), the size of the sieve holes on the plurality of sieve plates (2) decreases from top to bottom, the outer surface of each sieve drum (1) is provided with a connecting rod (3) for support, and the connecting rods (3) are staggered with each other; the bottom end of the connecting rod (3) is fixedly connected with a connecting plate (6), the lower surface of the connecting plate (6) is provided with a weighing platform (5), the lower surface of the weighing platform (5) is provided with a bracket (4) for support, and the plurality of weighing platforms (5) and connecting plates (6) are arranged in an interlaced manner at intervals from top to bottom; a material receiving barrel (7) is provided on the lower side of the lowest sieve drum (1), and a support leg (8) is provided on the lower surface of the material receiving barrel (7); and an auxiliary stirring mechanism is provided inside the sieve drum (1).

2. A particle size analysis device for floating tailings gravity separation concentrate according to claim 1, characterized in that: Discharge doors (9) are hingedly provided on the side surfaces of the screen cylinder (1) and the receiving cylinder (7), and each discharge door (9) is staggered with an adjacent connecting rod (3).

3. The particle size analysis device for floating tailings gravity separation concentrate according to claim 1 is characterized by: The auxiliary stirring mechanism comprises a telescopic rod (10) arranged on the lower surface of the external fixed frame, the movable end of the telescopic rod (10) is fixedly connected to a movable plate (11), the upper surface of the movable plate (11) is provided with a driving motor (12), the output shaft of the driving motor (12) passes through the lower surface of the movable plate (11) and is connected to a rotating shaft (13) through a coupling, a through hole corresponding to the rotating shaft (13) is opened at the center of the upper surface of each sieve plate (2), and a plurality of groups of stirring blades (14) for stirring the ore material in each sieve cylinder (1) are evenly arranged on the outer surface of the rotating shaft (13).

4. The particle size analysis device for floating tailings gravity separation concentrate according to claim 3 is characterized by: A retaining ring (15) is fixedly arranged on the outer side of the through hole on the upper surface of the sieve plate (2), a clamping ring (16) matching the retaining ring (15) is arranged on the outer side surface of the rotating shaft (13), and the stirring blade (14) is arranged on the outer side surface of the clamping ring (16).

5. The particle size analysis device for floating tailings gravity separation concentrate according to claim 4 is characterized by: Two retaining rings (15) are provided, the two retaining rings (15) are arranged concentrically and at a certain distance from each other, and the lower surface of the clamping ring (16) is provided with clamping grooves (17) corresponding to the two retaining rings (15).

6. The particle size analysis device for floating tailings gravity separation concentrate according to claim 3 is characterized by: The rotating shaft (13) is provided with a diameter reducing portion (18), and the diameter of the diameter reducing portion (18) is smaller than the diameter of the through hole.

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