JR系列直线振动筛 produced by Xinxiang Jiarui Electromechanical Manufacturing Co., Ltd. uses a vibrating motor as the excitation source, causing the material on the screen to be thrown up and move forward in a straight line. After the material is evenly fed into the feed port, it can be sieved through single- or multi-layer screens (1–6 layers) to separate materials by particle size. The oversize and undersize materials are discharged separately from their respective outlets. It has a large production capacity per unit, a simple structure, and is easy to maintain.
A dustproof cover can be added based on the material properties, and the fully enclosed structure prevents dust from escaping, creating a dust-free workshop. It can be connected with other equipment to form a production line. It is suitable for multiple industries such as food, pharmaceuticals, chemicals, building materials, and metallurgy, and we also provide non-standard customization services.
Proper linear vibrating screen operation is essential to maintain stable screening efficiency and extend equipment service life.
Let’s take a look at the operation and maintenance of the linear vibrating screen.
Linear Vibrating Screen Structure and Working Principle
The Linear Vibrating Screen is composed of multiple parts, each of which has its corresponding function.
Below is a summary of some content:
| 部件名称 | 材质及组成 | 功能说明 |
| 振动筛箱 | 由多块不同厚度的钢板焊接而成 | 设备的主体框架，必须具有足够的强度和刚度以支撑所有部件。. |
| Sieve frame | It is usually made of wood with small deformation, such as pine. | 用于固定和支撑筛网，保持筛网平整，确保筛分效果。. |
| 筛网 | 可选用多种材质，如低碳钢、黄铜和不锈钢丝等。. | 直接与物料接触的关键工作表面，用于完成分级作业。. |
| 振动电机 | 两台对称安装的振动电机。. | 产生激振力的核心动力源。. |
| 减振弹簧 | 螺旋弹簧或橡胶弹簧。. | 支撑筛箱的全部重量，同时隔离振动向地面的传递。安装时，弹簧必须垂直于地面。. |
| 机架 | Composed of pillars and channel steel. | 设备的基础，用于支撑整个筛机机体，安装时立柱需垂直于地面。. |
直线振动筛操作
Step1:Linear Vibrating Screen Preparation Before Operation
Before performing screening operations, a systematic inspection of the vibrating screen is required. This is a critical step to ensure the equipment operates smoothly and safely during screening.
通电前的基础安装检查
- 拆除防护装置： 如果设备为首次使用，必须拆除运输过程中用于固定设备的支撑装置或防护框架。否则，筛机可能被损坏并缩短其使用寿命。.
- 检查设备位置和筛网：: Check if the machine is placed horizontally and stable without shaking; ensure that both foot bolts on either side are tightened securely to prevent the machine from moving randomly, which could affect its operation and safety. Inspect the screen mesh for any damage or protrusions, as these would impact the screening accuracy and prevent guaranteed precision in screening.
- 检查清网装置： Before starting the machine, residual materials on the screen surface and discharge port should be cleaned promptly to prevent accuracy from decreasing and inaccurate material screening caused by clogging. Check the de-clogging devices such as the spring balls in a timely manner to ensure they are intact and not missing, guaranteeing the normal operation of the de-clogging devices. This reduces the phenomenon of repeated shutdowns due to clogging and improves screening efficiency.
- 确认电机旋转方向： Check if the vibration motor angles are synchronized and consistent, and ensure that parts such as the power interface are in good contact with no damage to prevent machine damage.
- 检查进出料口的密封性： If there is a need to integrate the production line, it is essential to carefully inspect whether the discharge port has already been properly sealed in contact with upstream and downstream equipment to prevent leakage or mixing of materials, thereby ensuring the quality of the materials.
Step2: Startup and Operating Procedures
启动运行前
在投料之前，应先空载运行设备，检查其各方面运行是否正常，以免因此延误运行进度。.
- Start without loading material first. Start the equipment first without pouring any material into it, run it for about 3 minutes, check if the vibration motor inside the machine vibrates synchronously and if the operating direction is correct, ensuring there are no abnormal noises or significant shaking of the machine.
- When the machine starts up, it operates normally. The material is then fed into it. The material needs to be evenly fed back and forth across the screen surface according to its width to avoid uneven force distribution on the screen when feeding from one side only. This prevents the material from deviating on the screen surface, which would otherwise affect screening efficiency and accuracy.
运行期间
空载试机运行完毕并确认各方面无异常后，方可投料进行试运行，进入正常筛分阶段。.
- When the machine starts up, it operates normally. The material is then fed into it. The material needs to be evenly fed back and forth across the screen surface according to its width to avoid uneven force distribution on the screen when feeding from one side only. This prevents the material from deviating on the screen surface, which would otherwise affect screening efficiency and accuracy.
- 给料时应均匀连续地供料，不得从高处将物料抛入筛面，以防止强烈冲击力对筛网造成损坏。.
- 筛分机运行过程中，需持续监测其运行状态的各个方面，如是否存在异常噪音、振动或电机温度过高等情况。.
Step3: Shutdown Procedure After Operation
Power must be turned off and the machine shut down only after all material on the screen has been emptied. If connected to a production line, upstream feeding equipment should be stopped first to extend the screen’s lifespan.
Linear Vibrating Screen Maintenance Tips
正确维护设备是延长其使用寿命的关键环节。.
- Daily maintenance: After the machine stops, the sieve mesh and sieve box need to be cleaned promptly to prevent residual material buildup, which could affect the accuracy and efficiency of subsequent material sieving.
- Check if the screen mesh is damaged or bulging, and ensure the cleaning device is intact to guarantee the machine’s screening efficiency.
- Check if the motor is overheating and if there is any material leakage; the spring and other accessories remain intact with no signs of breakage.
- Regularly clean the machine, check for aging of wiring and various components, tighten screws and bolts, and prevent equipment failures and shutdowns.
Common Linear Vibrating Screen Problems and Solutions
Here are some common faults of the Linear Vibrating Screen and their corresponding solutions.
| 故障现象 | Possible Causes | Troubleshooting and Handling Steps |
|---|---|---|
| Materials not moving or deviating from the screening path | 1. The two motors rotate in the same direction. 2. Unbalanced excitation force (inconsistent eccentric block angles). 2. Unbalanced excitation force (inconsistent eccentric block angles). | 1. Adjust the motor wiring to ensure opposite rotation directions. 2. Adjust the eccentric block angles to make them consistent. 3. Check and replace the spring sets with the same height. |
| Bearing overheating (>75°C) | 1. Excessive or insufficient grease lubrication. 2. Bearing wear or damage. 3. Motor overload. | 1. Add or remove grease to maintain an appropriate amount. 2. Inspect and replace the damaged bearings. 2. Inspect and replace the damaged bearings. |
| Abnormal noise | 1. Loose bolts. 2. Bearing damage. 3. Broken springs or spring collision. | 1. Stop the machine immediately and tighten all bolts. 2. Inspect and replace the bearings. 3. Check the springs and replace them as a complete set if necessary. |
| Low screening efficiency | 1. Screen mesh blockage. 2. Excessive feeding rate or overly thick material layer. 3. Insufficient vibration amplitude. | 1. Stop the machine and clean the screen mesh. 2. Adjust the feeding gate to control the feed rate. 3. Adjust the eccentric block counterweight to increase the vibration force. |
结论
该设备 嘉瑞 linear vibrating screen delivers stable and efficient material separation performance across multiple industries. By following proper installation, operation, and maintenance procedures, users can significantly enhance equipment reliability and maximize production efficiency.
Regular inspection, timely lubrication, and immediate replacement of worn components are essential to ensure long-term stable operation.