Wet screening device

Abstract

The utility model discloses a wet screening device which comprises a support. The feeding device is connected to the support, and a discharging opening is formed in the bottom of the feeding device; and the screening mechanism is connected to the support, and the screening mechanism comprises a screen arranged below the discharging opening and a scattering assembly used for scattering the to-be-screened materials on the screen. The scattering assembly can scatter the to-be-screened objects on the screen, so that the situation that the to-be-screened objects are locally accumulated on the screen is avoided, and the risk that the screening efficiency of the screen becomes low due to the fact that the to-be-screened objects block the screen is reduced. In addition, the to-be-screened objects on the screen are scattered, the number of screen holes participating in screening work can be increased, and therefore the screening efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of screening equipment, particularly to a wet screening device. BACKGROUND

[0002] Metallic foreign matters (such as copper, zinc and other elements) in lithium ion battery positive electrode material can penetrate the diaphragm to cause mechanical short circuit in cold extrusion process, or be oxidized into metal ions to migrate to the battery negative electrode and deposit in the negative electrode to form dendrites to pierce the diaphragm to cause chemical short circuit, thereby causing high battery self-discharge, capacity attenuation, battery heating and even fire explosion and other problems.

[0003] In the field of battery processing technology research, different specifications of screen meshes such as 400 mesh, 800 mesh and 1200 mesh are usually used to distinguish samples and foreign matters. Since the particle size of particulate matters is small, the dry screening method often accompanies large measurement error, therefore, the wet screening method is generally used for measurement. However, since the particle size of materials is small, the materials are easy to accumulate on the screen mesh, thereby causing screen mesh blockage problem, and currently manual intervention is needed, which not only increases labor cost, but also reduces test efficiency. SUMMARY

[0004] The utility model aims at solving one of the technical problems existing in the prior art. To this end, the utility model provides a wet screening device which can improve screening efficiency.

[0005] According to the wet screening device according to some embodiments of the utility model, it comprises: a support; a feeding appliance connected to the support, the bottom of the feeding appliance having a discharge port; a screening mechanism connected to the support, the screening mechanism comprising a screen mesh arranged below the discharge port and a scattering assembly for scattering the to-be-screened matters on the screen mesh.

[0006] The wet screening device according to the embodiments of the utility model has at least the following beneficial effects:

[0007] In the wet screening device of the utility model, an operator can inject to-be-screened matters into the feeding appliance through the feeding port, the materials in the feeding appliance can fall through the discharge port and fall on the screen mesh to be screened by the screen mesh, the scattering assembly can scatter the to-be-screened matters on the screen mesh, thereby avoiding the local accumulation of to-be-screened matters on the screen mesh, reducing the risk of to-be-screened matters blocking the screen mesh to reduce the screening efficiency of the screen mesh. In addition, scattering the to-be-screened matters on the screen mesh can increase the number of screen holes participating in the screening work, thereby accelerating the screening efficiency.

[0008] According to some embodiments of the present application, the dispersing assembly comprises a dispersing driving member and a dispersing member drivingly connected with the dispersing driving member, the dispersing member is located above the screen, and the dispersing driving member is used to drive the dispersing member to translate or rotate on the upper surface of the screen.

[0009] According to some embodiments of the present application, the dispersing member is provided with a dispersing part on the side close to the screen, wherein the dispersing part is a brush, a dispersing sheet or a dispersing column.

[0010] According to some embodiments of the present application, the dispersing member is connected with a rotating shaft, the rotating shaft is arranged in the screen and is perpendicular to the screen, the dispersing member can rotate relative to the screen by means of the rotating shaft, the dispersing driving member is drivingly connected with the dispersing member, and the dispersing driving member is used to drive the dispersing member to rotate around the rotating shaft.

[0011] According to some embodiments of the present application, the dispersing driving member comprises a linear driving source, a driving block repeatedly performing reciprocating motion under the driving of the linear driving source, and a transmission rod rotationally connected with the driving block at one end, and the other end of the transmission rod is rotationally connected with the end of the dispersing member.

[0012] According to some embodiments of the present application, the positions of the linear driving source, the driving block and the transmission rod are all higher than the screen.

[0013] Wherein, a plane parallel to the horizontal plane is defined as a reference plane, the projection of the linear driving source on the reference plane and the projection of the driving block on the reference plane are both not coincident with the projection of the discharge port on the reference plane.

[0014] According to some embodiments of the present application, the dispersing driving member is a linear driving member, and the linear driving member is drivingly connected with the dispersing member.

[0015] According to some embodiments of the present application, further comprising a stirring mechanism, the stirring mechanism is connected to the support, the stirring mechanism comprises a stirring driving member and a stirring part drivingly connected with the stirring driving member, and the stirring part extends into the feeding device.

[0016] According to some embodiments of the present application, a switch valve is arranged at the discharge port, and the switch valve is configured to be adjustable in opening degree.

[0017] According to some embodiments of the present application, further comprising a water storage container, a water pipe and a water pump, one end of the water pipe is connected with the water storage container, the other end of the water pipe is directed to the feeding port or extends into the feeding device, and the water pump is used to pump the water in the water storage container into the water pipe.

[0018] The additional aspects and advantages of the present application will be given partly in the following description, partly will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0020] Figure 1 A structure schematic view of the wet screening device of an embodiment of the present application;

[0021] Figure 2 A partial structure schematic view of the screening mechanism of an embodiment of the present application;

[0022] Figure 3 A partial structure schematic view of the scattering assembly of an embodiment of the present application;

[0023] Figure 4 A partial sectional structure schematic view of the scattering assembly of an embodiment of the present application;

[0024] Figure 5 A structure schematic view of the first supporting piece of an embodiment of the present application;

[0025] Figure 6 A structure schematic view of the feeding appliance of an embodiment of the present application;

[0026] Figure 7 A partial structure schematic view of the wet screening device of an embodiment of the present application;

[0027] Figure 8 A partial structure schematic view of the wet screening device of another embodiment of the present application.

[0028] LIST OF DRAWINGS

[0029] 100, support; 110, water storage container; 120, first clamping piece;

[0030] 200, feeding appliance; 210, feeding port; 220, discharging port; 230, overlapping convex strip; 240, on-off valve; 250, first supporting piece;

[0031] 300, screening mechanism; 310, screen mesh; 311, second supporting piece; 3111, supporting rod; 3112, limiting piece; 31121, frame; 31122, pawl; 3113, supporting part; 320, scattering assembly; 3211, driving block; 3212, transmission rod; 3213, guide cylinder; 3214, connecting rod; 322, scattering piece; 3221, rotating shaft; 330, scattering switch;

[0032] 400, stirring mechanism; 410, stirring driving member; 411, rotary driving source; 412, connecting shaft; 420, stirring part;

[0033] 500, primary screen; 510, third support;

[0034] 600, water pipe; 610, water pump switch;

[0035] 700, material receiving container;

[0036] 800, transfer tool; 810, roller; 820, second clamping member; 821, connecting part; 822, clamping part. DETAILED DESCRIPTION

[0037] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0038] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features limited as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0039] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] As Figure 1 shown, the wet screening device provided by an embodiment of the present application comprises a support 100, a feeding device 200 and a screening mechanism 300.

[0041] The bracket 100 is the main support structure used to support other components in the device.

[0042] The feeding device 200 is connected to the bracket 100. The top of the feeding device 200 has a feeding port 210 and the bottom of the feeding device 200 has a discharging port 220.

[0043] Specifically, the feeding device 200 is a hollow structure with openings at both the top and bottom. The upper opening of the feeding device 200 is the inlet 210, and the lower opening is the outlet 220. Operators can inject the material to be screened into the feeding device 200 through the inlet 210. The material to be screened can be a slurry, which may be a material used in battery preparation or other materials.

[0044] It should be noted that the bottom of the feeder 200 has a funnel-shaped structure. In other words, the cross-sectional area of ​​the bottom of the feeder 200 gradually decreases from top to bottom. This can slow down the outflow speed of the material to be screened in the feeder 200 and prevent the material to be screened from flowing out too quickly.

[0045] Furthermore, a switch valve 240 is provided at the discharge port 220 of the feed device 200. The switch valve 240 can control the opening and closing of the discharge port 220. When the material injected into the feed device 200 does not need to flow out, the discharge port 220 can be closed by the switch valve 240.

[0046] like Figure 1 As shown, in some embodiments, a first support member 250 is provided on the bracket 100, and a feeder 200 is detachably provided on the first support member 250, and the feeder 200 can be removed from the feeder 200.

[0047] like Figure 1 As shown, the screening mechanism 300 is connected to the support 100. The screening mechanism 300 includes a screen 310 disposed below the discharge port 220 of the feed device 200, and a dispersing component 320 for dispersing the material to be screened on the screen 310.

[0048] Specifically, the screen 310 is connected to the bracket 100 via the second support member 311. The screen 310 can catch the material exiting from the discharge port 220 of the feeder 200. The mesh size of the screen 310 can be selected according to specific circumstances. The dispersing component 320 can disperse the material to be screened on the screen 310, thereby avoiding local accumulation of the material on the screen 310 and reducing the risk of clogging the screen 310 and reducing its screening efficiency. In addition, by dispersing the material on the screen 310, the number of screen holes participating in the screening process can be increased, thereby accelerating the screening efficiency.

[0049] It should be noted that the screen 310 is detachably connected to the second support 311, which facilitates the replacement and maintenance of the screen 310.

[0050] Combination Figure 1 and Figure 5 Specifically, the second support member 311 includes a support rod 3111 connected to the bracket 100, a limiting member 3112 connected to the support rod 3111, and a support portion 3113 replaceably connected to the limiting member 3112, the support portion 3113 being used to support the screen 310.

[0051] like Figure 5 As shown, the limiting member 3112 includes a frame 2521 connected to the support rod 3111 and a pawl 2522 rotatably connected within the frame 2521. The supporting part 3113 has a toothed structure, and the pawl 2522 can penetrate into the toothed structure to limit the supporting part 3113. The pawl 2522 is rotatably connected to the frame 2521 via a rotating shaft, and a torsion spring is sleeved on the rotating shaft. The torsion spring abuts against the pawl 2522, thereby achieving the abutment of the supporting part 3113.

[0052] It should be noted that the support part 3113 is arc-shaped or ring-shaped, and there are various types of support parts 3113. Different types of support parts 3113 have different inner diameters, so as to support screens 310 with different outer diameters.

[0053] like Figure 1 As shown, the switching valve 240 is configured with an adjustable opening; in other words, the switching valve 240 can adjust its opening angle to control the flow rate of material flowing out of the feeder 200. Thus, the operator can control the outflow rate of material from the feeder 200 according to specific circumstances, thereby reducing the risk of excessive material flow accumulating on the screen 310 and overflowing from it.

[0054] It should be noted that the adjustable-opening on / off valve 240 is a common type of valve, and its specific structure will not be described in detail here.

[0055] like Figures 2 to 4 As shown, in some embodiments, the dispersing component 320 includes a dispersing drive and a dispersing component 322 that is driven to be connected to the dispersing drive. The dispersing component 322 is located above the screen 310, and the dispersing drive is used to drive the dispersing component 322 to translate or rotate on the upper surface of the screen 310.

[0056] It is understandable that by driving the dispersing component 322 to translate or rotate relative to the screen 310, the dispersing component 322 can dissolve the material to be screened on the screen 310.

[0057] The dispersing component 322 has a dispersing section on the side near the screen 310, which can be a brush, a dispersing plate, or a dispersing column. When the dispersing component 322 moves relative to the screen 310, the dispersing section can disperse the material to be screened on the screen 310.

[0058] Furthermore, the dispersing component 322 is connected to a rotating shaft 3221, which passes through the screen 310 and is perpendicular to the screen 310. The dispersing component 322 can rotate relative to the screen 310 by means of the rotating shaft 3221. The dispersing drive component is driven to the end of the dispersing component 322, and the dispersing drive component is used to drive the dispersing component 322 to rotate around the rotating shaft 3221.

[0059] Specifically, the disintegration drive includes a linear drive source, a drive block 3211 that is driven by the linear drive source to repeatedly reciprocate, and a transmission rod 3212 with one end rotatably connected to the drive block 3211, the other end of the transmission rod 3212 being rotatably connected to the end of the disintegration component 322.

[0060] It is understandable that the linear drive source is used to drive the drive block 3211 to perform linear reciprocating motion. Since the disintegrating component 322 is rotatably connected to the screen 310 through the rotating shaft 3221, when the drive block 3211 performs linear reciprocating motion, it will drive the disintegrating component 322 to rotate relative to the screen 310 through the transmission rod 3212.

[0061] It should be noted that the linear drive source can be an electric push rod, a cylinder or a hydraulic cylinder. The dispersing assembly 320 also includes a guide cylinder 3213 fixed on the bracket 100. The drive block 3211 is movably connected inside the guide cylinder 3213, and the drive block 3211 is also connected to a connecting rod 3214 that passes through the guide cylinder 3213. The linear drive source is connected to the connecting rod 3214.

[0062] Combination Figure 1 and Figure 2Furthermore, the positions of the linear drive source, drive block 3211 and transmission rod 3212 are all higher than the screen 310; wherein, a plane parallel to the horizontal plane is defined as the reference plane, and the projections of the linear drive source on the reference plane and the projections of the drive block 3211 on the reference plane do not coincide with the projections of the discharge port 220 of the feeder 200 on the reference plane.

[0063] It is understandable that the linear drive source, drive block 3211, and transmission rod 3212 are all positioned higher than the screen 310. Thus, the material falling through the screen 310 will not adhere to the linear drive source, drive block 3211, and transmission rod 3212. In addition, the projections of the linear drive source on the reference plane and the drive block 3211 on the reference plane do not coincide with the projection of the discharge port 220 on the reference plane. Therefore, the material falling through the discharge port 220 of the feeder 200 will not fall directly onto the linear drive source, drive block 3211, and transmission rod 3212.

[0064] In other embodiments, the dispersing drive is a linear drive, such as an electric push rod, a cylinder or a hydraulic cylinder. The linear drive is driven to the dispersing component 322, and the linear drive can directly drive the dispersing component 322 to perform linear motion, thereby dispersing the material to be screened on the screen 310.

[0065] like Figure 1 As shown, it should be noted that the bracket 100 is equipped with a disintegration switch 330 for controlling the start and stop of the disintegration drive component.

[0066] like Figure 1 As shown, in some embodiments, a primary screen 500 is also provided above the screen 310. The primary screen 500 is located below the discharge port 220 of the feed device 200. The mesh size of the primary screen 500 is smaller than that of the screen 310. The primary screen 500 can perform preliminary screening of the material.

[0067] It should be noted that the primary screen 500 is connected to the bracket 100 through the third support member 510, wherein the structure of the third support member 510 can be the same as the structure of the second support member 311.

[0068] like Figure 1 As shown, in some embodiments, the wet screening device further includes a stirring mechanism 400, which is connected to the support 100. The stirring mechanism 400 includes a stirring drive 410 and a stirring section 420 drivenly connected to the stirring drive 410, the stirring section 420 extending into the feeding device 200. The stirring drive 410 drives the stirring section 420 to rotate, thereby stirring the material in the feeding device 200 to make the material more uniformly mixed.

[0069] Specifically, the stirring drive 410 includes a rotary drive source 411 and a connecting shaft 412 connected to the rotary drive source 411. The stirring part 420 is connected to the connecting shaft 412 and extends into the feeding device 200 through the feed port 210 at the top of the feeding device 200.

[0070] Among them, the rotary drive source 411 is a motor, and the connecting shaft 412 is connected to the drive shaft of the motor.

[0071] like Figure 1 As shown, in some embodiments, the wet screening device further includes a water storage container 110, a water pipe 600, and a water pump. One end of the water pipe 600 is connected to the water storage container 110, and the other end faces the feed inlet 210 of the feed device 200 or extends into the feed device 200. The water pump is used to pump water from the water storage container 110 into the water pipe 600 so that water can enter the feed device 200.

[0072] It should be noted that the desired viscosity of the material in the feeder 200 can be achieved by adding water. In addition, after the screening is completed, water can be injected into the feeder 200 to clean the feeder 200, screen 310 and other components.

[0073] The bracket 100 is also equipped with a water pump switch 610 that is electrically connected to the water pump. The water pump switch 610 can control the start and stop of the water pump.

[0074] like Figure 1 As shown, in some embodiments, a receiving container 700 is provided at the bottom of the screen 310, wherein the receiving container 700 has a structure with an opening at the top, and the receiving container 700 can catch the material screened by the screen 310.

[0075] The receiving container 700 can be mounted on the transfer tool 800, and the bottom of the transfer tool 800 is equipped with rollers 810, which can drive the receiving container 700 to move.

[0076] like Figure 7 As shown, the support 100 is further provided with a first snap-fit ​​member 120, and the transfer tool 800 is provided with a second snap-fit ​​member 820 that snaps into the first snap-fit ​​member 120. When the transfer tool 800 transports the receiving container 700 to the bottom of the screen 310, the second snap-fit ​​member 820 can be snapped into the first snap-fit ​​member 120 to achieve the positioning of the transfer tool 800.

[0077] The second snap-fit ​​component 820 includes a connecting part 821 connected to the transfer tool 800 and a snap-fit ​​part 822 connected to the connecting part 821. The snap-fit ​​part 822 is used to connect to the first snap-fit ​​component 120. By pulling the transfer tool 800 upward, the first snap-fit ​​component 120 and the second snap-fit ​​component 820 can be separated.

[0078] like Figure 8 As shown, in some other embodiments, the connecting part 821 is rotatably connected to the transfer tool 800, and by rotating the connecting part 821, the first snap-fit ​​member 120 and the second snap-fit ​​member 820 can be separated.

[0079] In this wet screening device, the operator can inject the material to be screened into the feeding device 200 through the feed inlet 210. The material in the feeding device 200 falls through its discharge outlet 220 and lands on the screen 310 for screening. The dispersing component 320 can disperse the material to be screened on the screen 310, thereby avoiding local accumulation of the material on the screen 310 and reducing the risk of clogging the screen 310 and reducing its screening efficiency. In addition, by dispersing the material on the screen 310, the number of screen holes participating in the screening process can be increased, thereby accelerating the screening efficiency.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wet screening apparatus characterized by, The utility model relates to a kind of screening device, including: Support; Feeding utensil is connected to the support, and the bottom of the feeding utensil has discharge port; Screening mechanism is connected to the support, and the screening mechanism includes screen cloth arranged below the discharge port, and scattering component for scattering the to-be-screened material on the screen cloth; Wherein, the scattering component includes scattering drive element, and scattering element is drivenly connected with the scattering drive element, and the scattering element is located above the screen cloth, and the scattering drive element is used to drive the scattering element to rotate on the upper surface of the screen cloth;The rotating shaft is connected to the scattering element, and the rotating shaft is vertically arranged in the screen cloth, and the scattering element can be rotated relative to the screen cloth by the rotating shaft, and the scattering drive element is drivenly connected with the scattering element, and the scattering drive element is used to drive the scattering element to rotate around the rotating shaft;The scattering drive element includes linear drive source, driving block repeatedly moving back and forth driven by the linear drive source, and transmission rod is rotationally connected with one end of the driving block, and the other end of the transmission rod is rotationally connected with the end of the scattering element.

2. The wet sizing device of claim 1, wherein, The side of the scattering element close to the screen cloth is provided with scattering part, wherein the scattering part is brush, scattering sheet or scattering column.

3. The wet sizing device of claim 1, wherein, The positions of the linear drive source, the driving block and the transmission rod are all higher than the screen cloth; Wherein, define a plane parallel to the horizontal plane as the reference plane, and the projection of the linear drive source on the reference plane and the projection of the driving block on the reference plane do not coincide with the projection of the discharge port on the reference plane.

4. The wet sizing device of claim 1, wherein, The scattering drive element is linear drive element, and the linear drive element is drivenly connected with the scattering element.

5. The wet sizing device of claim 1, wherein, It also includes stirring mechanism, and the stirring mechanism is connected to the support, and the stirring mechanism includes stirring drive element and stirring part drivenly connected with the stirring drive element, and the stirring part extends into the feeding utensil.

6. The wet sieving apparatus of claim 1, wherein, The discharge port is provided with on-off valve, and the on-off valve is configured to be adjustable.

7. The wet sizing device of claim 1, wherein, It also includes water storage container, water pipe and water pump, one end of the water pipe is connected with the water storage container, the other end faces feeding port or extends into the feeding utensil, and the water pump is used to pump water in the water storage container into the water pipe.

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