Le crible vibrant linéaire de la série JR 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:
| Nom du composant | Matériau et composition | Description de la fonction |
| Caisse de criblage vibrante | Soudée à partir de plusieurs plaques d'acier d'épaisseurs différentes | Le châssis principal de l'équipement doit avoir une résistance et une rigidité suffisantes pour supporter tous les composants. |
| Sieve frame | It is usually made of wood with small deformation, such as pine. | Utilisé pour fixer et soutenir la toile de criblage, maintenir la toile de criblage plane et garantir l'efficacité du tamisage. |
| Toile de criblage | Une variété de matériaux sont disponibles, tels que l'acier à faible teneur en carbone, le laiton et le fil en acier inoxydable, etc. | La surface de travail critique qui entre en contact direct avec le matériau pour effectuer l'opération de classification. |
| Moteur vibrant | Deux moteurs vibrants installés symétriquement. | La source d'alimentation principale qui génère la force d'excitation. |
| Ressort amortisseur | Ressorts hélicoïdaux ou ressorts en caoutchouc. | Supporte le poids total de la caisse de criblage tout en isolant la transmission des vibrations au sol. Lors de l'installation, les ressorts doivent être verticaux par rapport au sol. |
| Support | Composed of pillars and channel steel. | La base de l'équipement, utilisée pour soutenir l'ensemble du corps de la cribleuse, les piliers devant être perpendiculaires au sol lors de l'installation. |
Linear Vibrating Screen Operation
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.
Vérification d'installation de base avant la mise sous tension
- Retirer le dispositif de protection : Si la machine est utilisée pour la première fois, les dispositifs de support ou les cadres de protection utilisés pour sécuriser la machine pendant le transport doivent être retirés. Sinon, la cribleuse pourrait être endommagée et sa durée de vie réduite.
- Vérifier la position de la machine et le crible: 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.
- Vérifier le dispositif de nettoyage de la toile : 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.
- Confirmer le sens de rotation du moteur : 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.
- Vérifier l'étanchéité des orifices d'entrée et de sortie : 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
Avant de commencer le fonctionnement
Avant d'introduire les matériaux, la machine doit d'abord fonctionner à vide pour vérifier si tous les aspects de son fonctionnement sont normaux, afin d'éviter de retarder le calendrier de fonctionnement pour cette raison.
- 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.
Pendant le fonctionnement
Après avoir effectué l'essai à vide et confirmé qu'il n'y a aucune anomalie à tous les niveaux, vous pouvez procéder à l'alimentation en matériau pour l'essai de fonctionnement, en entrant dans la phase normale de criblage.
- 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.
- Lors de l'alimentation des matériaux, nous devons les fournir uniformément et en continu, et ne pas les jeter d'une hauteur dans la toile. Cela permet d'éviter les dommages à la toile causés par des forces d'impact intenses.
- Pendant le fonctionnement de la machine de criblage, il est nécessaire de surveiller en continu divers aspects de son état de fonctionnement, tels que la présence de bruits anormaux, de vibrations ou de températures de moteur excessivement élevées.
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
Entretenir correctement les machines est une étape clé pour prolonger leur durée de vie.
- 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.
| Phénomène de panne | 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. |
Conclusion
Le Jiarui 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.