Slurry screening device with screen convenient to replace

Abstract

The slurry screening device comprises a screening hopper, a plurality of fixing discs which are overlapped together are arranged in the screening hopper, the fixing disc at the lowermost end is fixedly connected with the screening hopper, a plurality of anti-loosening bolts are fixed to the fixing disc at the uppermost end along the circumference of the fixing disc, the fixing discs are connected through the anti-loosening bolts, and the screening hopper is fixedly connected with the screening hopper through the anti-loosening bolts. Screens are fixed between every two fixing discs respectively, a plurality of upper protruding blocks are fixed to the upper ends of the fixing discs along the circumferences of the fixing discs, a plurality of upper sinking grooves are formed in the upper ends of the fixing discs along the circumferences of the fixing discs, the upper sinking grooves are located between every two upper protruding blocks respectively, and a plurality of positioning columns are fixed to the upper ends of the fixing discs. According to the multi-stage screening device, the screen cloth is arranged between every two fixing discs, the fixing discs clamp and fix the screen cloth through the locking bolts, rapid fixing of the screen cloth is achieved, rapid installation and replacement of the screen cloth are further achieved, and meanwhile multi-stage screening can be achieved by stacking different numbers of fixing discs and arranging the screen cloth with different mesh numbers.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of screen replacement, in particular to a slurry screening device convenient for replacing screen. BACKGROUND

[0002] In the front process of lithium ion battery production, the operation of slurry mixing stage will directly affect the effect of subsequent coating and determine the cycle life, rate performance and safety performance of the battery; the slurry mixing operation generally refers to mixing, stirring and dispersing the electrode active material, binder, conductive agent and solvent according to a certain proportion to obtain the slurry required by the electrode, and the slurry is screened through the screening device, the impurity particles in the slurry can be removed, and the slurry can smoothly pass through the screen to perform the next stage of coating process.

[0003] The existing screening device has the following problems when in use:

[0004] 1. After the screening device works for a long time, the screen will be damaged, at which time the screen needs to be replaced, but the existing screen is directly fixed on the screening device, which is not convenient for disassembling and replacing, and the surface tension of the screen cannot be maintained.

[0005] 2. The existing fixing method is fixed by bolts, but due to vibration during the operation of the screening device, the bolts will loosen, and then the screen will fall off. UTILITY MODEL CONTENTS

[0006] In view of the above problems, the utility model provides a slurry screening device convenient for replacing screen; the above problems are solved.

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a slurry screening device convenient for replacing screen, including screening hopper, the inside of screening hopper is equipped with multiple fixed discs that are overlapped together, the lowermost fixed disc is fixedly connected with screening hopper, the uppermost fixed disc is fixed with multiple anti-loosening bolts along its circumference, the anti-loosening bolts connect multiple fixed discs with each other, multiple fixed discs are fixed with screen between every two fixed discs respectively;

[0008] The upper end of the fixed disc is fixed with multiple upper protrusions along its circumference, multiple upper grooves are formed in the upper end of the fixed disc along its circumference, the upper grooves are respectively located between every two upper protrusions, multiple positioning columns are fixed to the upper end of the fixed disc, the positioning columns are respectively located between the upper protrusions and the positioning columns, multiple recesses are formed in the upper end of the fixed disc along its circumference;

[0009] The lower end of the fixed disc is fixed with a plurality of lower protrusions along the circumference thereof, the lower end of the fixed disc is provided with a plurality of lower grooves along the circumference thereof, the lower grooves are respectively located between every two lower protrusions, and the lower end of the fixed disc is provided with a plurality of counterbores, which are respectively located between the lower grooves and the lower protrusions.

[0010] Preferably, the upper end of the fixed disc is fixed with an annular protruding ring, the lower end of the fixed disc is provided with a stepped groove corresponding to the protruding ring, and the protruding ring, the stepped groove and the fixed disc are integrally formed.

[0011] Preferably, the anti-loosening bolt comprises a threaded column, a hexagonal prism is fixed on the threaded column, two symmetrically distributed clamping grooves are provided in the upper end of the threaded column, an anti-loosening piece is clamped in the clamping grooves, a gasket is arranged on the upper end of the anti-loosening piece, and a nut is threadedly connected to the upper end of the threaded column.

[0012] Preferably, the positioning column is in the shape of a circular truncated cone with the upper end being smaller than the lower end, the upper protrusions are in the shape of an arc, the upper protrusions are gradually tightened from the lower end to the upper end, the lower protrusions are in the shape of an arc, and the lower protrusions are gradually tightened from the lower end to the upper end.

[0013] Preferably, the upper protrusions, the positioning column, the lower protrusions and the fixed disc are integrally formed.

[0014] Preferably, the upper end of the gasket is provided with an inclined anti-skid strip, the lower end of the nut is provided with an inclined anti-loosening strip, and the inclined directions of the anti-skid strip and the anti-loosening strip are consistent.

[0015] Preferably, the lower end of the screening bucket is elastically connected with a collecting pipe, the lower end of the collecting pipe is fixed with a support, and the screening bucket is provided with a vibrating device.

[0016] Compared with the prior art, the utility model has the beneficial effects as follows:

[0017] 1. A plurality of fixed discs are stacked, a screen is arranged between every two fixed discs, and the fixed discs clamp and fix the screen through anti-loosening bolts, so that the screen is quickly fixed, the screen is quickly installed and replaced, and multi-stage screening can be realized by stacking different numbers of fixed discs and arranging screen meshes with different mesh numbers.

[0018] 2, through the upper fixed disc end upper block and another fixed disc lower end of the sinking groove corresponding, positioning column and another fixed disc lower end of the sink hole corresponding, convex ring and another fixed disc on the step groove corresponding, realize the clamping fixed screen, prevent screen loose when screening, positioning column and another on the sink hole corresponding, beneficial to make a plurality of fixed disc alignment, convenient connection, through the anti-loosening piece and the thread column and groove clamping, prevent the device from loosening when vibration, through the gasket and nut corresponding, further prevent the loosening of the lock bolt. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic diagram of the utility model;

[0020] Figure 2 It is the screening hopper schematic diagram of the utility model;

[0021] Figure 3 It is the fixed disc overall schematic diagram of the utility model;

[0022] Figure 4 It is the fixed disc upper surface schematic diagram of the utility model;

[0023] Figure 5 It is the fixed disc lower surface schematic diagram of the utility model;

[0024] Figure 6 It is the anti-loosening bolt overall schematic diagram of the utility model.

[0025] Marked in the figure: 1, screening hopper; 2, fixed disc; 3, anti-loosening bolt; 4, screen; 11, collection pipe; 12, support; 21, upper block; 22, positioning column; 23, upper sinking groove; 24, convex ring; 25, groove; 26, lower sinking groove; 27, sink hole; 28, lower block; 29, step groove; 31, thread column; 32, hexagonal prism; 33, clamping groove; 34, anti-loosening piece; 35, gasket; 36, nut. DETAILED DESCRIPTION

[0026] The embodiment of the utility model is further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0027] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 And Figure 5A slurry screening device convenient to replace the screen, including a screening hopper 1, the inside of the screening hopper 1 is provided with a plurality of fixed discs 2 stacked together, the lowermost fixed disc 2 is fixedly connected with the screening hopper 1, the uppermost fixed disc 2 is fixed with a plurality of anti-loosening bolts 3 along the circumference thereof, the anti-loosening bolts 3 connect the plurality of fixed discs 2 with each other, a plurality of screen meshes 4 are fixed between the fixed discs 2, the screen meshes 4 are arranged between the fixed discs 2 by stacking the plurality of fixed discs 2, and the fixed discs 2 clamp and fix the screen meshes 4 by the anti-loosening bolts 3, so that the screen meshes 4 are quickly fixed, the screen meshes 4 are quickly installed and replaced, and multi-stage screening can be realized by stacking different numbers of fixed discs 2 and arranging screen meshes 4 with different mesh numbers, the lower end of the screening hopper 1 is elastically connected with a collecting pipe 11, the lower end of the collecting pipe 11 is fixed with a support 12, the screening hopper 1 is provided with a vibrating device, and the vibrating device is an existing device, when the vibrating device starts to vibrate, the screening hopper 1 vibrates along with the collecting pipe 11 due to the elastic connection between the screening hopper 1 and the collecting pipe 11, and then the slurry in the screening hopper 1 is vibrated and screened out through the screen meshes 4.

[0028] Please refer to Figure 3 、 Figure 4 and Figure 5 , the upper end of the fixed disc 2 is fixed with a plurality of upper protrusions 21 along the circumference thereof, the upper end of the fixed disc 2 is provided with a plurality of upper grooves 23 along the circumference thereof, the upper grooves 23 are respectively located between the upper protrusions 21, the upper end of the fixed disc 2 is fixed with a plurality of positioning columns 22, the plurality of fixed discs 2 are correspondingly connected by arranging the positioning columns 22, so that disorder is prevented, the positioning columns 22 penetrate the screen meshes 4 to fix the screen meshes 4, so that the screen meshes 4 are prevented from moving when the fixed discs 2 clamp and fix the screen meshes 4, the positioning columns 22 are respectively located between the upper protrusions 21 and the positioning columns 22, the upper end of the fixed disc 2 is provided with a plurality of grooves 25 along the circumference thereof, the lower end of the fixed disc 2 is fixed with a plurality of lower protrusions 28 along the circumference thereof, the lower end of the fixed disc 2 is provided with a plurality of lower grooves 26 along the circumference thereof, the lower grooves 26 are respectively located between the lower protrusions 28, the lower end of the fixed disc 2 is provided with a plurality of counterbores 27, the counterbores 27 are respectively located between the lower grooves 26 and the lower protrusions 28, the upper protrusions 21 of the upper end of the fixed disc 2 correspond to the lower grooves 26 of the lower end of another fixed disc 2, the positioning columns 22 correspond to the counterbores 27 of the lower end of another fixed disc 2, and the convex rings 24 correspond to the stepped grooves 29 on another fixed disc 2, so that the screen meshes 4 are clamped and fixed, the screen meshes 4 are prevented from loosening during screening, the positioning columns 22 correspond to the counterbores 27 on another fixed disc 2, which is conducive to aligning the plurality of fixed discs 2 and facilitating connection.

[0029] Please refer to Figure 3 、 Figure 4 and Figure 5The upper end of the fixed disc 2 is fixed with an annular convex ring 24, and the lower end of the fixed disc 2 is provided with a stepped groove 29 corresponding to the convex ring 24, and the convex ring 24, the stepped groove 29 and the fixed disc 2 are integrally formed, thereby ensuring the firmness of mutual connection, the positioning column 22 is in the shape of a circular truncated cone with the upper end being smaller and the lower end being larger, the upper convex block 21 is in the shape of an arc, the upper convex block 21 is gradually tightened from the lower end to the upper end, the lower convex block 28 is in the shape of an arc, the lower convex block 28 is gradually tightened from the lower end to the upper end, the upper convex block 21 corresponds to the sunken groove 26 at the lower end of another fixed disc 2, the positioning column 22 corresponds to the counterbore 27 at the lower end of another fixed disc 2, and the convex ring 24 corresponds to the stepped groove 29 on another fixed disc 2, so that the fixed disc 2 clamps the screen 4 and realizes clamping and tensioning of the screen 4, thereby ensuring the firmness of the screen 4 and the smoothness of the surface of the screen 4, and the slurry can be conveniently screened.

[0030] Please refer to Figure 1 、 Figure 2 and Figure 6 , the anti-loose bolt 3 comprises a threaded column 31, the threaded column 31 is fixed with a hexagonal prism 32, the upper end of the threaded column 31 is provided with two symmetrically distributed clamping grooves 33, the clamping grooves 33 are clamped with anti-loose pieces 34, the lower end of the anti-loose pieces 34 is clamped in the recess 25, the upper end of the anti-loose pieces 34 is provided with a gasket 35, the upper end of the threaded column 31 is threadedly connected with a nut 36, the upper end of the gasket 35 is provided with an inclined anti-slip strip, the lower end of the nut 36 is provided with an inclined anti-loose strip, the inclined directions of the anti-slip strip and the anti-loose strip are consistent, the anti-loose pieces 34 are clamped with the threaded column 31 and the recess 25, so that the device is prevented from loosening when vibrating, and the gasket 35 is corresponded with the nut 36, so that the anti-loose bolt 3 is further prevented from loosening.

[0031] When the device is used:

[0032] Firstly, a proper number of fixed discs 2 and screen meshes 4 with different mesh numbers are selected, the screen meshes 4 are sequentially placed between every two fixed discs 2, and the mesh numbers of the screen meshes 4 gradually decrease from top to bottom;

[0033] Then, the plurality of fixed discs 2 are connected and fixed with each other by the threaded column 31, the fixed disc 2 is connected and fixed with the screening bucket 1, in the process of clamping the screen 4 by the fixed disc 2, the upper convex block 21 on the upper end of the fixed disc 2 corresponds to the lower sunken groove 26 on the lower end of another fixed disc 2, the positioning column 22 corresponds to the counterbore 27 on the lower end of another fixed disc 2, the convex ring 24 corresponds to the stepped groove 29 on another fixed disc 2, the screen 4 is clamped and fixed, the screen 4 is prevented from loosening during screening, meanwhile, the positioning column 22 corresponds to the counterbore 27 on another fixed disc 2, which is beneficial to align the plurality of fixed discs 2 with each other, and the plurality of fixed discs 2 are convenient to connect;

[0034] Then, after the fixed disc 2 is connected and fixed, the anti-loosening piece 34 is clamped at the clamping groove 33 of the threaded column 31, the lower end of the anti-loosening piece 34 is clamped in the recess 25, the gasket 35 is placed on the anti-loosening piece 34, the nut 36 is fixed on the threaded column 31, the nut 36 is pressed against the anti-loosening piece 34, and the threaded column 31 is prevented from loosening during working of the device;

[0035] Finally, the vibrating device is started, and the slurry in the screening bucket 1 is vibrated and screened out.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A slurry screening apparatus that facilitates replacement of a screen, characterized by: The application relates to a screening bucket (1) which is internally provided with a plurality of fixed discs (2) which are overlapped together, the lowermost fixed disc (2) is fixedly connected with the screening bucket (1), a plurality of anti-loosening bolts (3) are fixed on the upper end of the uppermost fixed disc (2) along the circumference of the fixed disc (2), the anti-loosening bolts (3) connect the fixed discs (2) with each other, and a screen (4) is fixed between every two fixed discs (2). The upper end of the fixed disc (2) is fixed with a plurality of upper protrusions (21) along the circumference of the fixed disc (2), a plurality of upper recesses (23) are formed on the upper end of the fixed disc (2) along the circumference of the fixed disc (2), the upper recesses (23) are respectively located between every two upper protrusions (21), a plurality of positioning columns (22) are fixed on the upper end of the fixed disc (2), the positioning columns (22) are respectively located between the upper protrusions (21) and the positioning columns (22), and a plurality of grooves (25) are formed on the upper end of the fixed disc (2) along the circumference of the fixed disc (2). The lower end of the fixed disc (2) is fixed with a plurality of lower protrusions (28) along the circumference of the fixed disc (2), a plurality of lower recesses (26) are formed on the lower end of the fixed disc (2) along the circumference of the fixed disc (2), the lower recesses (26) are respectively located between every two lower protrusions (28), and a plurality of counterbores (27) are formed on the lower end of the fixed disc (2), the counterbores (27) are respectively located between the lower recesses (26) and the lower protrusions (28).

2. A slurry screening device with easy-to-change screen according to claim 1, characterized in that: The upper end of the fixed disc (2) is fixed with an annular protruding ring (24), the lower end of the fixed disc (2) is formed with a stepped groove (29) corresponding to the protruding ring (24), and the protruding ring (24), the stepped groove (29) and the fixed disc (2) are integrally formed.

3. A slurry screening device with easy-to-change screen according to claim 1, characterized in that: The anti-loosening bolt (3) comprises a threaded column (31), a hexagonal column (32) is fixed on the threaded column (31), two symmetrically-distributed clamping grooves (33) are formed on the upper end of the threaded column (31), an anti-loosening piece (34) is clamped in the clamping grooves (33), the lower end of the anti-loosening piece (34) is clamped in the groove (25), the upper end of the anti-loosening piece (34) is provided with a gasket (35), and the upper end of the threaded column (31) is threadedly connected with a nut (36).

4. A slurry screening device with easy-to-change screen according to claim 1, characterized in that: The positioning column (22) is in the shape of a circular truncated cone which is small at the upper end and large at the lower end, the upper protrusion (21) is in the shape of an arc, the upper protrusion (21) is gradually tightened from the lower end to the upper end, the lower protrusion (28) is in the shape of an arc, and the lower protrusion (28) is gradually tightened from the lower end to the upper end.

5. A slurry screening device with easy-to-change screen according to claim 1, characterized in that: The upper protrusion (21), the positioning column (22) and the lower protrusion (28) are integrally formed with the fixed disc (2).

6. A slurry screening device with easy-to-change screen according to claim 3, characterized in that: The upper end of the gasket (35) is provided with an inclined anti-skid strip, the lower end of the nut (36) is provided with an inclined anti-loosening strip, and the inclined directions of the anti-skid strip and the anti-loosening strip are consistent.

7. A slurry screening device with easy-to-change screen according to claim 1, characterized in that: The lower end of the screening bucket (1) is elastically connected with a collecting pipe (11), the lower end of the collecting pipe (11) is fixed with a support (12), and the screening bucket (1) is provided with a vibrating device.

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