Wet screening device for small-granularity materials

Abstract

The utility model discloses a wet screening device for small-particle-size materials, which comprises a bottom plate, side plates arranged on two sides of the bottom plate, a top plate arranged between the tops of the side plates, a lifting plate arranged between the side plates in a lifting manner, a vibrating mechanism arranged on the lifting plate, a vibrating plate arranged on the vibrating mechanism, a transverse support and a water conveying pipe transversely arranged on the vibrating plate, clamping mechanisms used for clamping the screening baskets are arranged at the two ends of the transverse support, nozzles are arranged at the two ends of the water conveying pipe, an electromagnetic valve is arranged at a water inlet pipe opening in the middle of the water conveying pipe, the nozzles are located above the clamping screening baskets, and a control device is arranged on the lifting plate. The utility model aims to provide a wet screening device for small-granularity materials so as to improve the wet screening efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of screening, in particular to a wet screening device for small-grained materials. Background Art

[0002] In ore dressing grinding tests, it is often necessary to measure the particle sizes of various particle sizes of minerals. By measuring the percentage occupied by each particle size, the grinding efficiency of the mill and the classification efficiency of equipment such as hydrocyclones can be intuitively evaluated. In addition, by measuring the percentage of each particle size, understanding the dissociation degree of minerals is extremely important for the proportioning of ore dressing agents in ore dressing tests, and is crucial for exerting the role of the agents and reducing the usage amount of the agents.

[0003] In screening, it is divided into wet screening and dry screening. Dry screening is mainly used for screening larger-sized particles, and wet screening is mainly used for screening smaller-sized particles. Wet screening uses water as a medium to increase the distance between each particle of the ore material. In addition, through the flow of water, the flow of mineral particles is driven, making it easier for the ore particles to pass through the standard sieve, thereby improving the screening efficiency. In the existing wet screening process, the operator needs to immerse the bottom of the sieve basket into the water surface for screening, and this process is not only time-consuming and laborious, but also water will splash on the operator during the operation. In addition, the operator can only operate one sieve basket at a time, resulting in a low wet screening efficiency. In view of this, the utility model provides a wet screening device for small-grained materials to improve the wet screening efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a wet screening device for small-grained materials to improve the wet screening efficiency. To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A wet screening device for small-grained materials includes a bottom plate. Side plates are arranged on both sides of the bottom plate, and a top plate is arranged between the tops of the side plates. A lifting plate is arranged to be lifted and lowered between the side plates. A vibration mechanism is arranged on the lifting plate, and a vibration plate is arranged on the vibration mechanism. A transverse support and a water delivery pipe are arranged horizontally on the vibration plate. Clamping mechanisms for clamping the sieve basket are arranged at both ends of the transverse support. Nozzles are arranged at both ends of the water delivery pipe, and a solenoid valve is arranged at the water inlet of the middle part of the water delivery pipe. The nozzles are located above the clamped sieve basket, and a control device is arranged on the lifting plate.

[0006] Further, a lifting motor is arranged on the top plate. The output end of the lifting motor is connected with a reciprocating lead screw. A lead screw end seat is arranged on the inner side of the side plate. The reciprocating lead screw passes through the top plate downward, and the bottom end of the reciprocating lead screw is rotatably connected to the lead screw end seat. A lead screw sleeve is rotatably arranged on the lifting plate, and the lead screw sleeve is sleeved on the reciprocating lead screw and is in threaded connection with the reciprocating lead screw.

[0007] Further, support ribs are arranged at intervals on the bottom of the bottom plate, a water tank is arranged on the bottom plate, and a water pump is arranged in the water tank.

[0008] Further, the vibration mechanism includes a vibration motor, a support plate and springs. The support plate is arranged on the vibration surface of the vibration motor, and a plurality of springs are connected to the support plate. The upper ends of the springs are connected to the vibration plate.

[0009] Further, the transverse support is an I-shaped steel. The two ends of the transverse support are symmetric along the center line of the vibration plate. The water delivery pipe is arranged in the groove of the transverse support, and the number of clamping mechanisms on the transverse support is 2 - 4.

[0010] Further, the clamping mechanism includes a support connecting piece, a stud, a nut sleeve and a clamping arm. The support connecting piece is fixedly arranged at both ends of the transverse support. Studs are arranged on four side surfaces of the support connecting piece. Nut sleeves are threadedly connected to the studs. Clamping arms are rotatably arranged on the nut sleeves, and the clamping arms are in an "L" shape.

[0011] Further, a water basin is placed below the sieve basket, and the size of the water basin is larger than that of the sieve basket.

[0012] Further, the control device includes a power supply module, a controller, a time control switch and a motor step-down speed regulator. The power supply module, the time control switch, the motor step-down speed regulator, the solenoid valve and the lifting motor are respectively electrically connected to the controller. Both the motor step-down speed regulator and the time control switch are electrically connected to the vibration motor.

[0013] The beneficial effects that the present utility model can achieve are as follows: In this device, the lifting plate can be arranged to be liftable between the side plates. A vibration mechanism and a vibration plate are arranged on the lifting plate. A transverse support and a water delivery pipe are arranged horizontally on the vibration plate, and a clamping mechanism is arranged on the transverse support. The sieve basket is clamped by the clamping mechanism, and the vibration force is transmitted to the sieve basket through the transverse support so that the sieve basket can vibrate to screen materials. Sieve baskets can be arranged at both ends of the transverse support, enabling wet screening operations on multiple sieve baskets simultaneously. The lifting plate can be lifted by the lifting motor, thus facilitating the placement of the sieve basket in water. Through this device, manual operation is not required, the defects pointed out in the background art are overcome, and the screening efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a side view of the present utility model;

[0016] Figure 3 is an exploded schematic diagram of the vibration mechanism;

[0017] Figure 4 is a structural block diagram of the control device.

[0018] Legend Explanation:

[0019] 1 - Bottom plate, 2 - Support rib, 3 - Side plate, 4 - Lifting plate, 5 - Water tank, 6 - Water pump, 7 - Water basin, 8 - Sieve basket, 9 - Clamping mechanism, 91 - Stud, 92 - Nut sleeve, 93 - Clamping arm, 94 - Bracket connector, 10 - Horizontal bracket, 11 - Sprinkler head, 12 - Top plate, 13 - Lifting motor, 14 - Reciprocating lead screw, 15 - Lead screw sleeve, 16 - Control device, 161 - Power module, 162 - Controller, 163 - Motor step-down speed regulator, 164 - Time control switch, 17 - Vibration plate, 18 - Spring, 19 - Support plate, 20 - Vibration motor, 21 - Water delivery pipe, 22 - Solenoid valve, 23 - Lead screw end seat. Detailed Implementation Manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] Refer to Figures 1-3, the present utility model provides a wet screening device for small-grained materials, including a bottom plate 1, side plates 3 are arranged on both sides of the bottom plate 1, a top plate 12 is arranged between the tops of the side plates 3, a lifting plate 4 is arranged between the side plates 3 in a lifting manner, sliding holes are arranged on both sides of the lifting plate 4 and the sliding holes are slidably arranged on the lifting plate 4, a vibration mechanism is arranged on the lifting plate 4, a vibration plate 17 is arranged on the vibration mechanism, a transverse support 10 and a water delivery pipe 21 are arranged horizontally on the vibration plate 17. It should be noted that the transverse support 10 is fixedly connected to the vibration plate 17, and the vibration mechanism transmits vibration to the vibration plate 17 so that the transverse support 10 can vibrate together. Clamping mechanisms 9 for clamping a sieve basket 8 are arranged at both ends of the transverse support 10. More specifically, the transverse support 10 is an I-shaped steel, and the two ends of the transverse support 10 are symmetric along the center line of the vibration plate 17. The water delivery pipe 21 is arranged in the slot of the transverse support 10, and the number of clamping mechanisms 9 on the transverse support 10 is 2-4, so that multiple sieve baskets 8 can be operated at one time. Nozzles 11 are arranged at both ends of the water delivery pipe 21, and an electromagnetic valve 22 is arranged at the water inlet of the middle part of the water delivery pipe 21. The nozzles 11 are located above the clamped sieve basket 8, so that water can be continuously added into the sieve basket 8 during the screening process. A control device 16 is arranged on the lifting plate 4.

[0023] In order to realize the lifting operation of the lifting plate 4, the technical means adopted in this embodiment is that a lifting motor 13 is arranged on the top plate 12, the output end of the lifting motor 13 is connected with a reciprocating lead screw 14, a lead screw end seat 23 is arranged on the inner side of the side plate 3, the reciprocating lead screw 14 passes through the top plate 12 downward and the bottom end of the reciprocating lead screw 14 is rotatably connected to the lead screw end seat 23. A lead screw sleeve 15 is rotatably arranged on the lifting plate 4, the lead screw sleeve 15 is sleeved on the reciprocating lead screw 14 and the lead screw sleeve 15 is threadedly connected with the reciprocating lead screw 14. Through this, the lifting of the lifting plate 4 is realized, so as to facilitate the sieve basket 8 to extend into the water surface.

[0024] Supporting convex strips 2 are arranged at intervals at the bottom of the bottom plate 1, a water tank 5 is arranged on the bottom plate 1, a water pump 6 is arranged in the water tank 5, the water pump 6 is connected with the water inlet of the middle part of the water delivery pipe 21 through a hose. In addition, the water inlet of the middle part of the water delivery pipe 21 can also be directly connected with a water source through a hose.

[0025] For the vibration mechanism, the technical means adopted in this embodiment is that the vibration mechanism includes a vibration motor 20, a support plate 19 and a spring 18. The support plate 19 is arranged on the vibration surface of the vibration motor 20 and a plurality of springs 18 are connected to the support plate 19. The upper ends of the springs 18 are connected to the vibration plate 17, and the vibration is transmitted through the springs 18 to increase the vibration amplitude of the vibration plate 17.

[0026] For the clamping mechanism 9, the technical means adopted in this embodiment is that the clamping mechanism 9 includes a bracket connecting piece 94, a stud 91, a screw sleeve 92 and a clamping arm 93. The bracket connecting piece 94 is fixedly arranged at both ends of the horizontal bracket 10. Studs 91 are arranged on four side surfaces of the bracket connecting piece 94. Screw sleeves 92 are threadedly connected to the studs 91. Clamping arms 93 are rotatably arranged on the screw sleeves 92. The clamping arms 93 are in an "L" shape. The sieve basket 8 is placed between the four clamping arms 93, and the clamping arms 93 clamp the sieve basket 8 by rotating the screw sleeves 92. Further, a water basin 7 is placed below the sieve basket 8. In actual operation, a certain amount of water can also be injected into the water basin 7 in advance, and the sieve basket is placed in the water basin 7. The size of the water basin 7 is larger than that of the sieve basket 8, so as to facilitate the vibration space of the sieve basket 8.

[0027] Reference Figure 4 As shown, for the control device 16, more specifically, the control device 16 includes a power supply module 161, a controller 162, a time control switch 164 and a motor step-down speed regulator 163. The power supply module 161, the time control switch 164, the motor step-down speed regulator 163, the solenoid valve 22 and the lifting motor 13 are respectively electrically connected to the controller 162. The motor step-down speed regulator 163 and the time control switch 164 are both electrically connected to the vibration motor 20. The controller 162 can adopt a controller with the model number STM32C8T6.

[0028] At the beginning of the experiment, according to the mineral particle size situation, adjust the spraying time, interval and vibration speed of the nozzle. Add an appropriate amount of water to the surface of the water basin 7 for screening (spraying water directly through the nozzle 11 is also possible), then put appropriate minerals into the sieve basket 8, clamp the sieve basket 8 on the clamping arms 93 and rotate the screw sleeves 92 to tighten. Start the lifting motor 13 to adjust the height of the lifting plate, so that the bottom of the sieve basket 8 is appropriately immersed in water. When the timing of the time control switch 164 ends, the power supply module 161 is automatically cut off, and the screening ends.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A wet screening device for small-size materials, comprising a bottom plate (1), side plates (3) arranged on both sides of the bottom plate (1), and a top plate (12) arranged between the tops of the side plates (3), characterized in that: A lifting plate (4) is provided between the side plates (3) for lifting, a vibration mechanism is provided on the lifting plate (4), a vibration plate (17) is provided on the vibration mechanism, a cross bracket (10) and a water pipe (21) are transversely provided on the vibration plate (17), a clamping mechanism (9) for clamping a sieve basket (8) is provided at both ends of the cross bracket (10), a nozzle (11) is provided at both ends of the water pipe (21), and a solenoid valve (22) is provided at the water inlet in the middle of the water pipe (21), the nozzle (11) is located above the clamping sieve basket (8), and a control device (16) is provided on the lifting plate (4).

2. A wet screening device for small-size materials according to claim 1, characterized in that: The top plate (12) is provided with a lifting motor (13), the output end of the lifting motor (13) is connected to a reciprocating screw (14), a screw end seat (23) is provided on the inner side of the side plate (3), the reciprocating screw (14) passes downward through the top plate (12) and the bottom end of the reciprocating screw (14) is rotatably connected to the screw end seat (23), and a screw sleeve (15) is rotatably provided on the lifting plate (4), the screw sleeve (15) is inserted into the reciprocating screw (14) and the screw sleeve (15) is threadedly connected to the reciprocating screw (14).

3. A wet screening device for small-size materials according to claim 1, characterized in that: The bottom of the bottom plate (1) is provided with supporting convex strips (2) at intervals, a water tank (5) is provided on the bottom plate (1), and a water pump (6) is provided in the water tank (5).

4. A wet screening device for small-size materials according to claim 1, characterized in that: The vibration mechanism comprises a vibration motor (20), a support plate (19) and a spring (18); the support plate (19) is arranged on a vibration surface of the vibration motor (20) and a plurality of springs (18) are connected to the support plate (19); the upper ends of the springs (18) are connected to the vibration plate (17).

5. A wet screening device for small-size materials according to claim 1, characterized in that: The cross bracket (10) is an I-shaped steel, and both ends of the cross bracket (10) are symmetrical along the center line of the vibration plate (17). The water pipe (21) is arranged in the notch of the cross bracket (10), and the number of the clamping mechanisms (9) on the cross bracket (10) is 2-4.

6. A wet screening device for small-size materials according to claim 1, characterized in that: The clamping mechanism (9) comprises a bracket connecting piece (94), a stud (91), a screw sleeve (92) and a clamping arm (93); the bracket connecting piece (94) is fixedly arranged at both ends of the transverse bracket (10); studs (91) are arranged on four sides of the bracket connecting piece (94); screw sleeves (92) are threadedly connected to the studs (91); a clamping arm (93) is rotatably arranged on the screw sleeve (92); and the clamping arm (93) is in an "L" shape.

7. A wet screening device for small-size materials according to claim 1, characterized in that: A water basin (7) is placed below the sieve basket (8), and the size of the water basin (7) is larger than the size of the sieve basket (8).

8. A wet screening device for small-size materials according to claim 1, characterized in that: The control device (16) comprises a power module (161), a controller (162), a time-controlled switch (164) and a motor step-down speed regulator (163); the power module (161), the time-controlled switch (164), the motor step-down speed regulator (163), the solenoid valve (22) and the lifting motor (13) are respectively electrically connected to the controller (162); and the motor step-down speed regulator (163) and the time-controlled switch (164) are both electrically connected to the vibration motor (20).

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