Multi-fraction wet screening device for laboratory

Abstract

The invention discloses a laboratory multi-fraction wet screening device which comprises a base, a machine frame is arranged on the base in a sliding mode, two sets of correspondingly-arranged rail wheels are arranged at the bottom of the machine frame, guide rails corresponding to the rail wheels are arranged on the base, a plurality of vertically-distributed screen meshes are arranged on the machine frame, and the screen meshes are arranged on the machine frame. The sizes of screen holes of the screen are sequentially reduced in the direction from top to bottom, and a driver for driving the rack to horizontally swing in a reciprocating mode is arranged on the base. When the multi-particle-size wet screening device is overdue to being used in a laboratory, the phenomena of low screening precision and the like caused by human factors can be reduced, meanwhile, materials with various particle sizes can be fully separated under the action of the self gravity of the materials and the flushing force of water, the screening efficiency is high, the operation steps are simple, manpower can be saved, the working efficiency is improved, and use is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of laboratory mineral processing equipment, in particular to a laboratory multi-grade wet screening device. Background Art

[0002] Traditional screening methods in mineral processing laboratories include dry screening and wet screening.

[0003] Dry screening is mainly performed by dry screening equipment, but the problem is that the target material with compaction or clumping needs to be fully ground before screening, otherwise it will affect the screening efficiency and accuracy, especially when screening some difficult-to-screen materials. When the material is severely clumped, dry screening cannot be used and wet screening can only be selected.

[0004] Wet screening mainly involves manually washing the standard sieve with water to screen the target material. When the target mineral needs to be screened for multiple particle sizes, it is necessary to manually store the undersize material and water in a basin or bucket with a larger mesh, and then screen the material in a standard sieve with a smaller mesh, and then repeat the above steps many times. This multi-particle screening method requires frequent replacement of the sieve and multiple screenings, which is complicated to operate, wastes manpower, and has low work efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a multi-particle-grade wet screening device for a laboratory, which can reduce the phenomenon of low screening accuracy caused by human factors. At the same time, under the action of the material's own gravity and the flushing force of water, materials of various particle sizes can be fully separated, the screening efficiency is high, the operation steps are simple, manpower can be saved, and work efficiency is improved. It is easy to use and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a laboratory multi-particle-grade wet screening device, comprising a base, a frame slidably arranged on the base, a plurality of vertically distributed screens arranged on the frame, and the screen holes of the screens decrease successively from top to bottom, and a driver for driving the frame to swing back and forth horizontally is arranged on the base.

[0007] As a preferred technical solution of the present invention, an annular clamping plate is provided on the upper surface of the frame corresponding to the screen, and the screen is movably clamped on the annular clamping plate.

[0008] As a preferred technical solution of the present invention, a limiting ring is provided on the upper surface of the frame corresponding to the annular clamping plate, the annular clamping plate is located inside the limiting ring, and the upper surface of the limiting ring is higher than the height of the corresponding upper surface of the screen.

[0009] As a preferred technical solution of the present invention, a funnel is provided at the bottom of the frame corresponding to the screen, a handle is provided on the upper surface of the screen, and the distance between the bottom of the funnel and the upper surface of the lower limiting ring is greater than the distance between the bottom of the screen and the top of the handle.

[0010] As a preferred technical solution of the present invention, two groups of correspondingly arranged track wheels are provided at the bottom of the frame, and guide rails correspondingly arranged to the track wheels are provided on the base.

[0011] As a preferred technical solution of the present invention, the driver includes a motor mounted on a base, a main pulley is provided on the output shaft of the motor, a drive plate is rotatably provided on the side of the frame, an end of the drive plate away from the frame is rotatably provided on a connecting piece, and a belt connected to the connecting piece is sleeved on the main pulley.

[0012] As a preferred technical solution of the present invention, the connecting member includes a driving shaft, the driving shaft is rotatably set on a bracket, the bracket is installed on a base, a secondary pulley is provided at the bottom of the driving shaft, the secondary pulley is connected to the main pulley through a belt, a driving disk is provided at the top of the driving shaft, an eccentric rod is provided on the driving disk, and the driving plate is rotatably set on the eccentric rod.

[0013] As a preferred technical solution of the present invention, through holes are provided on the upper surfaces of the base corresponding to the frame.

[0014] As a preferred technical solution of the present invention, a guide plate is provided at the bottom of the base corresponding to the through hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The multi-particle-grade wet screening device for laboratory use exemplified in the present invention can reduce the phenomenon of low screening accuracy caused by human factors. At the same time, under the action of the material's own gravity and the flushing force of water, materials of various particle sizes can be fully separated. The screening efficiency is high, the operation steps are simple, manpower can be saved, work efficiency is improved, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A right view structural diagram of ; Figure 3 It is a front view structural schematic diagram of the present invention.

[0017] In the figure: 1 base, 2 frame, 21 track wheel, 22 guide rail, 3 limit ring, 31 annular clamping plate, 32 screen, 33 funnel, 4 through hole, 5 guide plate, 6 drive plate, 7 motor, 71 main pulley, 72 belt, 8 drive shaft, 81 secondary pulley, 9 drive disc, 91 eccentric rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-3 The present invention provides a technical solution: a laboratory multi-grade wet screening device, comprising a base 1, a frame 2 is slidably arranged on the base 1, a plurality of vertically distributed screens 32 are arranged on the frame 2, and the screen holes of the screens 32 decrease in size from top to bottom, a driver is arranged on the base 1 to drive the frame 2 to swing back and forth horizontally, the material is poured onto the uppermost screen, and the material is washed with water, the frame 2 drives the screen 32 to reciprocate during the process, and the material is screened so that the material with a small particle size enters the lower screen, and the screening is performed layer by layer so that the materials of each level will stay in the screen 32 of the corresponding particle level under their own gravity and the washing of water.

[0020] Furthermore, an annular clamping plate 31 is provided on the upper surface of the frame 2 corresponding to the screen 32 , and the screen 32 is movably clamped on the annular clamping plate 31 , so as to facilitate the rapid installation of the screen 32 .

[0021] Furthermore, a limiting ring 3 is provided on the upper surface of the frame 2 corresponding to the annular clamping plate 31, the annular clamping plate 31 is located inside the limiting ring 3, and the upper surface of the limiting ring 3 is higher than the height of the upper surface of the corresponding screen 32, so that the material falls on the screen 32, and at the same time, the limiting ring 3 plays a role of limiting the material to prevent the material from falling from the screen 32.

[0022] Furthermore, a funnel 33 is provided at the bottom of the frame 2 corresponding to the screen 32, which plays a diversion role so that the material sieved off the upper screen 32 can fall onto the lower screen 32. A handle is provided on the upper surface of the screen 32. The distance between the bottom of the funnel 33 and the upper surface of the lower limiting ring 3 is greater than the distance between the bottom of the screen 32 and the top of the handle, which facilitates the replacement of the screen 32.

[0023] Furthermore, two sets of corresponding track wheels 21 are provided at the bottom of the frame 2 , and guide rails 22 corresponding to the track wheels 21 are provided on the base 1 , so that the frame 2 can reciprocate on the guide rails 22 through the track wheels 21 .

[0024] Furthermore, the driver includes a motor 7 mounted on the base 1, a main pulley 71 is provided on the output shaft of the motor 7, a driving plate 6 is rotatably provided on the side of the frame 2, an end of the driving plate 6 away from the frame 2 is rotatably provided on the connecting piece, and a belt 72 connected to the connecting piece is sleeved on the main pulley 71.

[0025] Furthermore, the connecting member includes a driving shaft 8, which is rotatably arranged on a bracket, and the bracket is installed on the base 1. A secondary pulley 81 is provided at the bottom of the driving shaft 8, and the secondary pulley 81 is connected to the main pulley 71 through a belt 72. A driving disk 9 is provided at the top of the driving shaft 8, and an eccentric rod 91 is provided on the driving disk 9. The driving plate 6 is rotatably arranged on the eccentric rod 91 to control the operation of the motor 7. The motor 7 drives the main pulley 71 to rotate, and the main pulley 71 drives the secondary pulley 81 to rotate through the belt 72. The secondary pulley 81 drives the driving disk 9 to rotate through the driving shaft 8, and the driving disk 9 drives the frame 2 to reciprocate on the guide rail 22 through the eccentric rod 91 and the driving plate 6.

[0026] Furthermore, through holes 4 are provided on the upper surfaces of the base 1 and the frame 2 corresponding to each other.

[0027] Furthermore, a guide plate 5 is provided at the bottom of the base 1 corresponding to the through hole 4 , and the flushing water passes through the through hole 4 and flows along the guide plate 5 .

[0028] The motor 7 used in the present invention is a common electronic component in the prior art, and its working method and circuit structure are well-known technologies and will not be described in detail here.

[0029] The device also has the advantages of simple structure, high screening efficiency, high precision, low cost and low noise, and can be used for screening materials of various specific gravities.

[0030] When using: The motor 7 is controlled to work, the motor 7 drives the main pulley 71 to rotate, the main pulley 71 drives the auxiliary pulley 81 to rotate through the belt 72, the auxiliary pulley 81 drives the driving disc 9 to rotate through the driving shaft 8, and the driving disc 9 drives the frame 2 to reciprocate on the guide rail 22 through the eccentric rod 91 and the driving plate 6; Pour the material onto the top screen and rinse it with water. The frame 2 drives the screen 32 to reciprocate to screen the material, so that the material with a small particle size enters the lower screen. The material at each level will stay in the screen 32 of the corresponding particle size under its own gravity and the flushing of water. The flushing water passes through the through hole 4 and flows along the guide plate 5. Finally, the materials on each screen 32 are poured into a tray for drying.

[0031] The present invention can reduce the phenomenon of low screening accuracy caused by human factors, and at the same time, under the action of the material's own gravity and the flushing force of water, materials of various particle sizes can be fully separated, the screening efficiency is high, the operation steps are simple, manpower can be saved, work efficiency is improved, and it is easy to use.

[0032] The undisclosed parts in the present invention are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present invention 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 invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A laboratory multi-grade wet screening device, comprising a base (1), characterized in that: A frame (2) is slidably arranged on the base (1), a plurality of vertically distributed screens (32) are arranged on the frame (2), and the screen holes of the screens (32) decrease in size from top to bottom, and a driver for driving the frame (2) to swing back and forth horizontally is arranged on the base (1).

2. The multi-grade wet screening device for laboratory use according to claim 1, characterized in that: An annular clamping plate (31) is provided on the upper surface of the frame (2) corresponding to the screen (32), and the screen (32) is movably clamped on the annular clamping plate (31).

3. The multi-grade wet screening device for laboratory use according to claim 2, characterized in that: A limiting ring (3) is provided on the upper surface of the frame (2) corresponding to the annular clamping plate (31); the annular clamping plate (31) is located inside the limiting ring (3); and the upper surface of the limiting ring (3) is higher than the upper surface of the corresponding screen (32).

4. The multi-grade wet screening device for laboratory use according to claim 3, characterized in that: A funnel (33) is provided at the bottom of the frame (2) corresponding to the screen (32), a handle is provided on the upper surface of the screen (32), and the distance between the bottom of the funnel (33) and the upper surface of the lower limiting ring (3) is greater than the distance between the bottom of the screen (32) and the top of the handle.

5. The multi-grade wet screening device for laboratory use according to claim 1, characterized in that: The bottom of the frame (2) is provided with two sets of correspondingly arranged track wheels (21), and the base (1) is provided with guide rails (22) correspondingly arranged with the track wheels (21).

6. The laboratory multi-grade wet screening device according to claim 1, characterized in that: The driver comprises a motor (7) mounted on a base (1), a main pulley (71) being provided on an output shaft of the motor (7), a driving plate (6) being rotatably provided on a side of the frame (2), an end of the driving plate (6) away from the frame (2) being rotatably provided on a connecting piece, and a belt (72) connected to the connecting piece being sleeved on the main pulley (71).

7. The multi-grade wet screening device for laboratory use according to claim 6, characterized in that: The connecting member comprises a driving shaft (8), the driving shaft (8) being rotatably mounted on a bracket, the bracket being mounted on a base (1), a secondary pulley (81) being provided at the bottom of the driving shaft (8), the secondary pulley (81) being connected to a primary pulley (71) via a belt (72), a driving disk (9) being provided at the top of the driving shaft (8), an eccentric rod (91) being provided on the driving disk (9), and the driving plate (6) being rotatably mounted on the eccentric rod (91).

8. The laboratory multi-grade wet screening device according to claim 1, characterized in that: The upper surfaces of the base (1) and the frame (2) corresponding to each other are provided with through holes (4).

9. The multi-grade wet screening device for laboratory use according to claim 8, characterized in that: A guide plate (5) is provided at the bottom of the base (1) corresponding to the through hole (4).

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