Screen frame and ultrasonic vibrating screen device

Abstract

The utility model relates to the field of lithium battery production equipment, and particularly discloses a screen frame and an ultrasonic vibrating screen device. The screen frame is installed on the ultrasonic vibrating screen and comprises a screen frame body, a screen mesh and a slag discharging assembly. A slag discharging opening is formed in the side wall of the screen frame body; the screen is mounted at the bottom of the screen frame body; the deslagging assembly comprises a deslagging pipe and a collecting nozzle, one end of the deslagging pipe is connected with the collecting nozzle, and the other end of the deslagging pipe is connected to an external exhaust device; the screen frame body is provided with a residue discharging opening, the residue discharging pipe is installed at the residue discharging opening, the collecting nozzle is located in a containing cavity defined by the screen frame body and the screen, the collecting nozzle is located on the edge of the screen, and the collecting nozzle is used for collecting material residues on the screen. According to the screen frame, material residues on the screen can be automatically cleaned, and the cleaning efficiency is improved. And the slag can be cleaned without disassembling the equipment, so that the influence on the equipment is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of lithium battery production equipment, and in particular to a screen frame and an ultrasonic vibrating screen device. Background Art

[0002] Currently, ultrasonic vibrating screens are mostly used for screening operations in the ternary precursor and cathode industries. Since ultrasonic vibrating screens do not have automatic cleaning devices, the screened materials are cleaned manually. Manual cleaning takes a long time, and the ultrasonic vibrating screen needs to be disassembled when cleaning the screened materials. Frequent disassembly and assembly of ultrasonic vibrating screens will affect the service life of ultrasonic vibrating screens, and may also introduce metal foreign matter to affect the products to be screened. Utility Model Content

[0003] The embodiment of the utility model provides a screen frame and an ultrasonic vibration screen device, and the external exhaust device can automatically clean the material residue on the screen, thereby improving the cleaning efficiency. Moreover, the material residue can be cleaned without disassembling the equipment, thereby reducing the impact on the equipment.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] The present application provides a screen frame, comprising: a screen frame body, a screen mesh and a slag discharge assembly. The screen mesh is installed at the bottom of the screen frame body; the side wall of the screen frame body has a slag discharge port; the slag discharge assembly comprises a slag discharge pipe and a collecting nozzle, one end of the slag discharge pipe is connected to the collecting nozzle, and the other end of the slag discharge pipe is connected to an external exhaust device; the slag discharge pipe is installed at the slag discharge port, the collecting nozzle is located in a containing cavity enclosed by the screen frame body and the screen mesh, and the collecting nozzle is located at the edge of the screen mesh. The collecting nozzle is used to collect the slag on the screen mesh.

[0006] In the above embodiment, the screen frame body can be a cylindrical barrel. When it is necessary to clean the slag on the screen, start the ultrasonic vibrating screen, and the slag on the screen moves in a parabolic circular trajectory. Start the external exhaust device to evacuate air. The collecting nozzle sucks the slag that moves to its opening into the slag discharge pipe, and then discharges it from the outside of the screen frame, thereby realizing automatic cleaning of the slag by the screen frame. The screen frame of the present application can automatically clean the slag after being connected to the external exhaust device, eliminating manual operation and improving the cleaning efficiency of the slag. And the cleaning can be completed without disassembling the ultrasonic vibrating screen, reducing the impact on the ultrasonic vibrating screen.

[0007] In one embodiment, the collecting nozzle includes a first opening and a second opening, the first opening faces the screen, the second opening is connected to the slag discharge pipe, and a plane where the first opening is located has an angle with the screen.

[0008] In one embodiment, the angle is 74° to 78°.

[0009] In one embodiment, the first opening is flat.

[0010] In one embodiment, the first opening includes a first end and a second end, the first end is located between the second end and the sieve, and a distance a between the first end and the sieve satisfies a=5 cm.

[0011] In one embodiment, the distance b between the second end and the sieve satisfies b=10 cm.

[0012] In one embodiment, the slag discharge pipe is a U-shaped pipe.

[0013] In one embodiment, the screen frame further comprises a vent, and the vent is located on a side wall of the screen frame body.

[0014] In one embodiment, the vent is equipped with a filter.

[0015] On the other hand, the present application also provides an ultrasonic vibration screen device including the above-mentioned screen frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a screen frame and an exhaust device provided for one embodiment of the present application;

[0017] Figure 2 A partial schematic diagram of a slag discharge assembly and a screen frame body provided for one embodiment of the present application;

[0018] Figure 3 A side view of a slag discharge assembly and a screen provided for one embodiment of the present application;

[0019] Figure 4 A schematic diagram of the positions of the first opening and the screen frame body provided for one embodiment of the present application.

[0020] Reference numerals:

[0021] 1-screen frame body; 2-screen; 3-slag discharge assembly; 31-slag discharge pipe; 32-collecting nozzle; 100-exhaust device; 321-first opening; 322-second opening; A-first end; B-second end; 21-vent. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0023] Ultrasonic vibrating screen is a machine that converts electrical energy into mechanical energy to achieve efficient screening of materials. Ultrasonic vibrating screen relies on ultrasonic vibration generator to generate high-frequency mechanical waves, which are transmitted to the screen through the vibration device, so that the material oscillates at high speed on the screen. At the same time, the particles on the screen will also move with the vibration, thereby achieving screening. The main process of screening materials using ultrasonic vibrating screen is: the material is placed on the screen, and under the action of ultrasonic vibration waves, the material particles move in a parabolic circular trajectory on the screen. The material particles smaller than the mesh number of the screen are collected after passing through the screen, and the large particles of material larger than the mesh number of the screen (i.e., material residue) remain on the screen. As the material screening continues, large particles of material continue to accumulate on the screen, affecting the normal screening efficiency. Therefore, it is necessary to clean the material particles remaining on the screen after a period of use. The cleaning of the material particles remaining on the screen is mainly done manually. The personnel disassemble the upper cover and screen frame of the ultrasonic vibrating screen, use a brush to brush the material particles remaining on the screen into the collection bag for collection, and finally install the upper cover and screen frame. However, frequent disassembly and assembly of the ultrasonic vibrating screen will affect the service life of the ultrasonic vibrating screen, and may also introduce metal foreign matter to affect the screened material products.

[0024] In order to solve the above-mentioned problem, the present application provides a screen frame and an ultrasonic vibration screen device, which can automatically clean the material residue on the screen and improve the cleaning efficiency.

[0025] Figure 1 A schematic diagram of the structure of a screen frame provided in one embodiment of the present application, Figure 2 A partial schematic diagram of a slag discharge assembly and a screen frame body provided in one embodiment of the present application. Figure 1 and Figure 2, an embodiment of the present application provides a screen frame installed on an ultrasonic vibrating screen. The screen frame includes a screen frame body 1, a screen mesh 2 and a slag discharge assembly 3. Among them, the screen mesh 2 is installed at the bottom of the screen frame body 1. The side wall of the screen frame body 1 has a slag discharge port. The slag discharge assembly 3 includes a slag discharge pipe 31 and a collecting nozzle 32, one end of the slag discharge pipe 31 is connected to the collecting nozzle 32, and the other end of the slag discharge pipe 31 is connected to an external exhaust device 100; the slag discharge pipe 31 is installed at the slag discharge port, and the collecting nozzle 32 is located in a accommodating cavity enclosed by the screen frame body 1 and the screen mesh 2, and the collecting nozzle 32 is located at the edge of the screen mesh 2. The exhaust device 100 is used to extract air in the accommodating cavity so that the slag is discharged from the screen frame body 1 through the collecting nozzle 32.

[0026] In the above embodiment, the screen frame body 1 can be a cylindrical barrel. The external exhaust device 100 is a two-way mode, which can be used for both vacuuming and inflation. When it is necessary to clean the slag on the screen 2, start the ultrasonic vibrating screen, and the slag on the screen 2 moves in a parabolic circular trajectory. Start the external exhaust device 100 to evacuate air, and the collecting nozzle 32 will suck the slag moving to its opening into the slag discharge pipe 31, and then discharge it from the outside of the screen frame, realizing automatic cleaning of the slag. The screen frame of the present application can automatically clean the slag after the external exhaust device is connected, thereby improving the cleaning efficiency of the slag. And the cleaning can be completed without disassembling the ultrasonic vibrating screen, reducing the impact on the ultrasonic vibrating screen.

[0027] In a specific embodiment, the slag discharge pipe 31 can be made of SUS304 stainless steel, and the slag discharge pipe 31 is welded and fixed to the screen frame body 1. The connection between the slag discharge pipe 31 and the inner wall of the screen frame body 1 is sprayed as a whole to prevent slag from entering the weld.

[0028] Figure 3 A side view of a slag discharge assembly and a screen provided for one embodiment of the present application, Figure 4 A schematic diagram of the position of the first opening and the screen frame body provided in one embodiment of the present application. Figure 3 and Figure 4 In one embodiment, the collecting nozzle 32 includes a first opening 321 and a second opening 322, the first opening 321 faces the screen 2, the second opening 322 is connected to the slag discharge pipe 31, the plane where the first opening 321 is located has an angle with the screen 2, and the direction of the first opening 321 is opposite to the slag movement direction M. Compared with the case where the plane where the first opening 321 is located is parallel to the screen 2, the first opening 321 is inclined to facilitate the collecting nozzle 32 to collect slag, and can reduce the accumulation of slag around the collecting nozzle 32 caused by excessive slag.

[0029] In a specific embodiment, the angle α is 74° to 78°. The first opening 321 is inclined, and within this angle range, the slag collection efficiency is high.

[0030] In order to increase the flow rate of the gas, the collection nozzle 32 may be in a duckbill shape. In one embodiment, the first opening 321 facing the screen 2 is flat, which can speed up the flow rate of the air entering the collection nozzle 32 during the air extraction, so that the slag moving to the vicinity of the first opening 321 can be quickly captured by the collection nozzle 32.

[0031] When the collecting nozzle 32 is specifically prepared, the first opening 321 can be prepared as an ellipse, and the second opening 322 can be prepared as a circle, and the major axis of the ellipse is greater than the diameter of the circle. The collecting nozzle 32 is a symmetrical structure and can be produced as a standard part during preparation. The first opening 321 can also be a rectangle or other flat shape, which is not specifically limited in this application.

[0032] In one embodiment, the first opening 321 includes a first end A and a second end B, and the first end A is located between the second end B and the screen 2. The first end A is located on the back-to-material surface of the collecting nozzle 32, and the second end B is located on the front-to-material surface of the collecting nozzle 32. Specifically, the first end A is the lowest point of the first opening 321, and the distance a between the first end A and the screen 2 satisfies a=5 cm. Setting this size enables the first end A to have a certain blocking effect on the slag. The second end B is the highest point of the first opening 321, and the distance b between the second end B and the screen 2 satisfies b=10 cm, so as to reduce the accumulation of slag around the first opening 321.

[0033] In one embodiment, the above-mentioned slag discharge pipe 31 can be a U-shaped pipe. One end of the U-shaped pipe is located inside the screen frame body 1 and extends toward the screen 2, and the other end is located outside the screen frame body 1 and extends toward the ground. In this way, the slag entering the slag discharge pipe 31 can fall vertically and naturally under the action of gravity when it moves to the outside of the screen frame body 1, thereby reducing the slag blocking in the slag discharge pipe 31 and reducing the power consumption of the exhaust device 100.

[0034] In one embodiment, the screen frame further includes an air vent 21, and the air vent 21 is located at any position where the side wall of the screen frame body 1 does not overlap with the slag discharge port. The air vent 21 is used to balance the air pressure in the accommodating chamber. For example, gas can be added to the accommodating chamber of the screen frame through the air vent 21 to reduce the slight negative pressure generated in the accommodating chamber when the exhaust device 100 is pumping air. Or gas can be discharged into the accommodating chamber of the screen frame through the air vent 21 to reduce the slight positive pressure generated in the accommodating chamber when the exhaust device 100 is backblowing. The air vent balances the air pressure in the accommodating chamber, which can improve the slag discharge effect and extend the service life of the screen frame.

[0035] In order to prevent foreign matter outside the screen frame body 1 from entering the accommodating cavity, in one embodiment, the vent 21 is installed with a filter (not shown in the figure).

[0036] On the other hand, an embodiment of the present application further provides an ultrasonic vibrating screen device, which includes the above-mentioned screen frame. The slag discharge pipe 31 of the screen frame is connected to the exhaust device 100, and the exhaust device 100 can specifically be a vacuum feeder. After the slag is collected by the collecting nozzle 32, it enters the vacuum feeder with the airflow and can be directly collected, which is convenient for later processing, reduces manual operation and improves production efficiency. The ultrasonic vibrating screen device of the present application is externally connected to the exhaust device, and the accommodating cavity inside the screen frame does not have components that require mechanical transmission, which effectively reduces the situation where metal foreign matter is introduced into the accommodating cavity. And after the external exhaust device is connected, the slag can be automatically cleaned, which improves the cleaning efficiency of the slag. When removing the slag, the ultrasonic vibrating screen device does not need to be disassembled to complete the cleaning, which reduces the impact on the ultrasonic vibrating screen device.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A screen frame installed on an ultrasonic vibrating screen, characterized in that: include: A screen frame body, wherein the side wall of the screen frame body has a slag discharge port; A screen, the screen being installed at the bottom of the screen frame body; A slag discharge assembly, the slag discharge assembly comprising a slag discharge pipe and a collecting nozzle, one end of the slag discharge pipe is connected to the collecting nozzle, and the other end of the slag discharge pipe is connected to an external exhaust device; The slag discharge pipe is installed at the slag discharge port, the collecting nozzle is located in the accommodating cavity enclosed by the screen frame body and the screen, and the collecting nozzle is located at the edge of the screen, and the collecting nozzle is used to collect the slag on the screen.

2. The screen frame according to claim 1, characterized in that: The collecting nozzle comprises a first opening and a second opening, wherein the first opening faces the screen, the second opening is connected to the slag discharge pipe, and a plane where the first opening is located has an angle with the screen.

3. The screen frame according to claim 2, characterized in that: The angle is 74° to 78°.

4. The screen frame according to claim 2, characterized in that: The first opening is flat.

5. The screen frame according to claim 2, characterized in that: The first opening includes a first end and a second end, the first end is located between the second end and the sieve, and a distance a between the first end and the sieve satisfies a=5 cm.

6. The screen frame according to claim 5, characterized in that: The distance b between the second end and the screen satisfies b=10 cm.

7. The screen frame according to claim 1, characterized in that: The slag discharge pipe is a U-shaped pipe.

8. The screen frame according to claim 1, characterized in that: It also includes a vent, which is located on the side wall of the screen frame body.

9. The screen frame according to claim 8, characterized in that: The vent is equipped with a filter screen.

10. An ultrasonic vibrating screen device, characterized in that: It comprises a screen frame as described in any one of claims 1 to 9.

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