Laboratory ball-milling screening machine
By designing a laboratory ball mill screening machine with vibrating screening mechanism and sound insulation design, the unstable and noise problems of the ball mill grinding effect are solved, the effect of automatic screening and noise reduction is achieved, and the laboratory work efficiency and environmental quality are improved. .
Patent Information
- Application Number
- CN202420195300.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-26
AI Technical Summary
The grinding effect of existing ball mills is unstable and lacks screening function, requiring additional manual screening, and the working mode is accompanied by noise to affect the laboratory environment.
A laboratory ball mill screening machine was designed, including a vibrating screening mechanism, ball mill cabin, motor, adjustment device and control device. Automatic grinding and screening are achieved by controlling the motor speed and vibration device. The ball mill cabin adopts a three-layer structure and sound insulation. Cotton reduces noise and realizes automatic separation of materials through steel ball separation nets and screens.
It improves grinding efficiency, realizes automatic screening of materials, reduces noise and vibration, and improves the comfort of the laboratory working environment.
Smart Images
Figure CN222240555U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ball mill screening machines, in particular to a laboratory ball mill screening machine. Background Art
[0002] Small powder ball mill is a commonly used equipment in the laboratories of cement or concrete companies. It is a key equipment for crushing materials after they are crushed. This type of equipment is widely used in schools, scientific and technological units, experimental departments and other places. It has the advantages of small and exquisite appearance, simple and generous, small space occupation and strong applicability. However, there are still a few shortcomings in the existing devices. First, the grinding effect of the ball mill is unstable and the particle size is uneven; secondly, it does not have a screening function and requires additional manual screening, which is time-consuming and labor-intensive; finally, the working mode of the ball mill is accompanied by noise, which affects the laboratory working environment Utility Model Content
[0003] The utility model aims to provide a laboratory ball mill screening machine, which is used to solve the problem that the grinding effect is unstable and additional manual screening is required in the prior art.
[0004] The utility model solves the above problems through the following technical solutions:
[0005] A laboratory ball mill screening machine comprises: a support frame, on which a vibrating screening mechanism, a ball mill cabin arranged above the vibrating screening mechanism, a motor, an adjusting device and a control device are installed, the vibrating screening mechanism comprises a vibrating device and a screening device, the screening device is provided with a feed hopper, a first material receiving box and a second material receiving box from top to bottom, the vibrating device is installed on the first material receiving box, and a layer of screen is provided at the bottom of the feed hopper and the first material receiving box, the adjusting device and the control device are symmetrically arranged on the support frame, and at the same time, the motor and the vibrating device are electrically connected to the control device, the motor is connected to a first end of a transmission device, and a second end of the transmission device is connected to one side of the ball mill cabin, a discharge port is provided on the other side of the ball mill cabin, and a steel ball separation net is provided at the discharge port.
[0006] Working principle: During operation, the speed and working time of the motor are adjusted through the control device, and then the material is put into the ball mill chamber from the discharge port, the motor is started through the control device, and then the ball mill chamber is driven for grinding through the transmission device. After the grinding is completed, the angle of the ball mill chamber is adjusted through the adjustment device, so that the material enters the feed hopper from the discharge port through the steel ball separation net, and then the vibration device is started through the control device to drive the two layers of screens for vibration screening, and materials of different particle sizes fall into the first receiving box and the second receiving box respectively.
[0007] Furthermore, the motor is connected to a flywheel bearing of the transmission device, one side of the ball mill chamber is connected to another flywheel bearing of the transmission device, and the flywheels are connected by belts.
[0008] Furthermore, the ball mill chamber is a cylindrical structure, and the chamber wall includes an inner layer, a middle layer and an outer layer, wherein the inner and outer layers are steel plates, and the middle layer is sound insulation cotton.
[0009] Furthermore, the discharge port of the ball mill chamber is a conical structure and is provided with a sealing cover.
[0010] Furthermore, the adjustment device includes a limiter and an adjustment handle, and the adjustment handle cooperates with the limiter to adjust the position of the ball mill chamber.
[0011] Furthermore, the screens at the bottom of the feed hopper and the first receiving box are metal wire meshes, and the sizes of the screen holes are 150um and 75um respectively.
[0012] Furthermore, the material receiving box is a drawer-type structure.
[0013] Furthermore, an elastic support is fixedly connected between the second material receiving box and the support frame.
[0014] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0015] (1) The utility model controls the rotation of the motor through a control device, and then drives the ball mill to grind through a transmission device, thereby realizing the material grinding work in the ball mill. The angle of the ball mill is adjusted through an adjustment device to pour the material from the discharge port into the vibration screening mechanism; and then the vibration device is controlled by the control device to complete the vibration of the two layers of screens, thereby realizing automatic screening of materials and improving the efficiency of material grinding.
[0016] (2) The utility model designs the wall of the ball mill chamber into a three-layer structure, uses sound insulation cotton in the middle layer, and connects an elastic support between the second material receiving box and the support frame, thereby reducing the noise generated by the ball mill chamber during material grinding and the noise generated by the vibration screening mechanism during vibration screening. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a front view of the utility model.
[0018] Figure 2 It is the right view of the utility model.
[0019] Figure 3 It is a schematic diagram of the discharge port of the ball mill chamber of the present utility model.
[0020] Figure 4 It is a schematic diagram of the ball mill cabin wall of the utility model.
[0021] Among them, 1-sealing cover; 2-ball mill chamber; 3-adjusting handle; 4-limiter; 5-motor; 6-transmission device; 7-support frame; 8-feed hopper; 9-control device; 11-steel ball separation net; 12-sound insulation cotton; 13-vibration screening mechanism; 14-first material receiving box; 15-second material receiving box; 16-elastic support; 17-hopper cover. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. 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 implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.
[0023] Example:
[0024] Combined with Figure 1-Figure 4 As shown, a laboratory ball mill screening machine comprises: a support frame 7, on which a vibration screening mechanism 13 is installed, a ball mill cabin 2 arranged above the vibration screening mechanism 13, a motor 5, an adjusting device and a control device 9, the vibration screening mechanism 13 comprises a vibration device and a screening device, the screening device is provided with a feed hopper 8, a first material receiving box 14 and a second material receiving box 15 from top to bottom, the vibration device is installed on the box body of the first material receiving box 14, and a layer of screen is provided at the bottom of the feed hopper 8 and the first material receiving box 14, the adjusting device and the control device 9 are symmetrically arranged on the support frame 7, and at the same time, the motor 5 and the vibration device are electrically connected to the control device 9, the motor 5 is connected to a first end of a transmission device 6, and a second end of the transmission device 6 is connected to one side of the ball mill cabin 2, and a discharge port is provided on the other side of the ball mill cabin 2, and a steel ball separation net 11 is provided at the discharge port.
[0025] Working principle: During operation, the speed and working time of the motor 5 are adjusted through the control device 9, and then the material is put into the ball mill chamber 2 from the discharge port, the motor 5 is started through the control device 9, and then the ball mill chamber 2 is driven by the transmission device 6 for grinding. After the grinding is completed, the angle of the ball mill chamber 2 is adjusted through the adjustment device so that the material enters the feed hopper 8 from the discharge port through the steel ball separation net 11, and then the vibration device is started through the control device 9 to drive the two layers of screens for vibration screening, and materials of different particle sizes fall into the first receiving box 14 and the second receiving box 15 respectively.
[0026] Combined with Figure 4As shown, a certain number of steel balls are placed inside the ball mill chamber 2 for grinding materials, and the steel ball separation net 11 has a sufficient gap size so that materials can pass through, but steel balls cannot pass through. When the material flows through the discharge port, the steel balls will be trapped inside the ball mill chamber 2 by the steel ball separation net 11, and only the material can be discharged through the gap; the function of the above control device 9 can be realized through the existing PLC control.
[0027] Combined with Figure 2 As shown, the motor 5 is connected to a flywheel bearing of the transmission device 6, one side of the ball mill chamber 2 is connected to another flywheel bearing of the transmission device 6, and the flywheels are connected by belts.
[0028] It should be noted that the motor 5 is fixedly connected to a flywheel through a bearing, so that the power of the motor 5 can be transmitted to the flywheel to make it start to rotate. A pulley is installed on one flywheel, and a matching pulley is also installed on the other flywheel. The two flywheels are connected together by a belt so that they can rotate synchronously. The other flywheel is connected to the shaft of the ball mill chamber 2 through a bearing. In this way, the rotational motion of the flywheel can be transmitted to the ball mill chamber 2, thereby driving the material in the ball mill chamber 2 to grind.
[0029] Combined with Figure 3 As shown, the ball mill chamber 2 is a cylindrical structure, and the chamber wall includes an inner layer, a middle layer and an outer layer, wherein the inner and outer layers are steel plates, and the middle layer is sound insulation cotton 12.
[0030] It should be noted that the sound insulation cotton 12 is usually made of sound-absorbing material, such as glass fiber, polyester fiber, etc., which can effectively absorb noise and vibration.
[0031] The discharge port of the ball mill chamber 2 is a conical structure and is provided with a sealing cover 1.
[0032] It should be noted that the sealing cover 1 is made of plastic, and the sealing cover 1 is threadedly connected to the discharge port.
[0033] The adjusting device comprises a limiter 4 and an adjusting handle 3 , and the adjusting handle 3 cooperates with the limiter 4 to adjust the position of the ball mill chamber 2 .
[0034] The screens at the bottom of the feed hopper 8 and the first receiving box 14 are metal wire meshes, and the sizes of the screen holes are 150um and 75um respectively.
[0035] It should be noted that the size of the sieve holes can be selected according to the specific material specifications and screening needs. For example, the size of the sieve holes can also be selected to be 45um. At the same time, a hopper cover 17 can be removably installed when the feed hopper is working to prevent material splashing, contamination and cross-contamination, thereby saving materials.
[0036] The material receiving box is a drawer-type structure, and an elastic support 16 is fixedly connected between the second material receiving box 15 and the support frame 7 .
[0037] It should be noted that the elastic support 16 is added to ensure the stability, safety and working efficiency of the machine, and also to reduce noise.
[0038] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are merely preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.
Claims
1. A laboratory ball mill screening machine, comprising: A support frame, characterized in that a vibrating screening mechanism, a ball milling chamber arranged above the vibrating screening mechanism, a motor, an adjusting device and a control device are installed on the support frame, the vibrating screening mechanism includes a vibrating device and a screening device, the screening device is provided with a feed hopper, a first material receiving box and a second material receiving box from top to bottom, the vibrating device is installed on the first material receiving box, and a layer of screen is provided at the bottom of the feed hopper and the first material receiving box, the adjusting device and the control device are symmetrically arranged on the support frame, and at the same time, the motor and the vibrating device are electrically connected to the control device, the motor is connected to a first end of a transmission device, and a second end of the transmission device is connected to one side of the ball milling chamber, a discharge port is provided on the other side of the ball milling chamber, and a steel ball separation net is provided at the discharge port.
2. A laboratory ball mill screening machine according to claim 1, characterized in that: The motor is connected to a flywheel bearing of the transmission device, one side of the ball mill chamber is connected to another flywheel bearing of the transmission device, and the flywheels are connected through belts.
3. A laboratory ball mill screening machine according to claim 1, characterized in that: The ball mill cabin is a cylindrical structure, and the cabin wall includes an inner layer, a middle layer and an outer layer, wherein the inner and outer layers are steel plates, and the middle layer is sound insulation cotton.
4. A laboratory ball mill screening machine according to claim 1, characterized in that: The discharge port of the ball mill chamber is a conical structure and has a sealing cover.
5. A laboratory ball mill screening machine according to claim 1, characterized in that: The adjusting device comprises a limiter and an adjusting handle, and the adjusting handle cooperates with the limiter to adjust the position of the ball mill chamber.
6. A laboratory ball mill screening machine according to claim 1, characterized in that: The screens at the bottom of the feed hopper and the first receiving box are metal wire meshes, and the sizes of the screen holes are 150um and 75um respectively.
7. A laboratory ball mill screening machine according to claim 1, characterized in that: The material receiving box is a drawer-type structure.
8. A laboratory ball mill screening machine according to claim 1, characterized in that: An elastic support is fixedly connected between the second material receiving box and the support frame.