Linear vibration sieve machine

Types of linear vibration sieve machines

Linear vibration sieving machines use a vibrating motor as a driving force to produce a linear motion trajectory for material screening, separation, and classification. The vibrating motor generates centrifugal forces by rotating the eccentric blocks at both sides of the base, which then causes the equipment and materials to move up and down in a linear direction. This mechanically-induced elastic motion creates strong extrusion and impact forces that result in the separation and stratification of materials within the machine. Their structures, working principles, and applications are as follows:

• Structure:

  Linear vibrating screens include a screen box, a vibrating motor, a suspension device, and other components. The screen box is usually made up of screens of different mesh sizes; hence, it can carry out the separation and classification of different materials. The vibrating motor is the power source for producing a linear motion trajectory, while the suspension device allows the machine to be stably mounted horizontally on the ground.

• Working principle:

  The vibrating motor of the linear vibrating sieve machine drives the eccentric blocks to rotate in a high-speed manner, which produces a huge centrifugal force. This forces the screen base and materials to move up and down in a linear direction. This mechanical movement creates an elastic motion that extrudes and impacts the materials, which then results in the separation of the screened materials from the base.

• Application:

  Linear vibrating screens are mostly used for classifying and separating materials in fields such as chemical engineering, coal, mining, metallurgy, building materials, and light industries.

Specifications & maintenance of linear vibration sieve machines

• Sieving area

  The dimension of the surface for the materials to be distributed, preferably extended to gain performance.

• Sieving mesh

  It is the perforated surface of different materials and calibres, such as plastic, stainless steel, etc.

• Capacity

  It is the mass of the material that can be separated within a specific time, usually expressed in tons per hour (t/h).

• Power

  The number of active motors and their respective power are decisive to know the equipment's consumption and efficiency.

• Dimensions

  Usually, they are expressed as length, width, and height and are determined by the sieving area and the machine's structure.

• Weight

  A linear vibrating sieve weighs different depending on its dimensions and the materials. Knowing the weight is critical when deciding the means of transporting and handling the machine.

• Working Temperature

  It is the sieving machine's operating temperature range, which must be within the materials' and vibrating motor's tolerance limits.

Maintenance

Periodic maintenance of linear vibrating sieves maximises their operational efficiency and extends their useful lives. Usually, manufacturers recommend the following:

• Cleaning:

  It involves removing any residue from the material that may have been stuck to the mesh during sieving. Also, it includes an external cleaning of the vibrating sieve to ensure that no impurity is present on the surface that may fall into the scrutinised product.

• Lubrication:

  It is limited to lubricating the sieves' operating parts, such as bearings and axles, following the instructions regarding the kind of grease to be used and the frequency of lubricating.

• Mesh replacement:

  They usually wear out after a specific time of use. Therefore, it will be necessary to replace them with others that will be better suited to the materials to be examined.

• Checks:

  It is necessary to check the sieve's vibration and noise parameters to verify that the vibration motor is within the prescribed limits. Also, as a result of operating the linear vibrating sieves, the fixing elements, such as bolts and gaskets, may loosen. Therefore, it will be necessary to review and adjust them according to the specifications.

Scenarios of linear vibration sieve machines

Linear vibration screens have a wide range of applications in various industries.

• Food/Pharmaceutical: In food industries such as bakery product inspection, flour/grain separation, and ingredient screening, hygiene is paramount. Linear vibrating screens provide high hygienic standards, helping food companies maintain quality and complies with food safety regulations. In the same context, pharmaceutical companies must also ensure that their products be screened, vibrating sieves for pills are reliable, and contaminants are detected.
• Chemical Materials: Powder compounds such as plastics, carbon black, chemical fiber, and other materials in the chemical industry often contain agglomerates or impurities that must be removed. Linear vibrating sieves effectively separate these undesired contaminants, ensuring that only pure chemical compounds are used in production processes. Moreover, linear vibrating sieves can screen raw materials like additives and pigments, ensuring uniform quality for chemical products.
• Mineral Separation:Linear vibrating sieves are widely used for mineral separation, including coal, iron ore, copper, and more. Separating minerals from impurities such as mud, waste rock, and other contaminants is crucial in mineral-processing industries. Linear vibrating sieves help remove these impurities, improving the quality and yield of minerals.
• Recycling Industry:Vibrating sieves can also be found in waste treatment and recycling applications, where they screen out contaminants such as metals, plastics, and organics from municipal solid waste, industrial waste, and refuse-derived fuel. By doing so, vibrating sieves play an important part in increasing the purity of recovered materials and lowering the environmental impact of waste disposal.

How to Choose Linear Vibration Sieve Machines

Purchasing the right linear vibrating sieve machine for an existing business is vital for the enterprise's success and ROI. Some factors to consider when buying a linear vibrating sieve are as follows:

• Production Requirements

  It is necessary to figure out the production needs of the business and select a linear vibrating sieve machine that matches its capacity. Assess the material type, particle size, density, and flow rate when deciding the production capacity required.

• Sieve Deck Size and Structure

  Select the appropriate deck size and number of decks according to the material processing volume and classification requirements to ensure the sieving efficiency and production capacity.

• Vibrating Screen Parameter

  Choose the suitable screen surface material, inclination angle, and frequency and amplitude of vibration according to the material characteristics and processing requirements to obtain good screening results.

• Machine Material and Structure

  Choose a linear vibrating sieve machine whose material and structure are suitable for the processed materials and working environment in order to ensure durability and stability. In certain industrial scenarios, linear vibration screening machines with anti-explosion, waterproof, and dustproof capabilities would be necessary to ensure the entire machine's safety and operation.

• Separation Mechanism

  Depending upon the application, users can choose the mechanism to separate solids and fluids, such as pressure in the case of a membrane (filter) or gravity for gravity-based separation.

• Maintenance and Servicing

  It's better to choose linear vibrating sieve machines with a strong after-sales service and maintenance network to ensure timely support and service.

Linear vibration sieve machine Q&A

Q: Which industry uses a linear vibrating screen?

A: The linear vibrating screen is widely used in coal, electric power, mining, metallurgy, building materials, chemical industry, and other industries.

Q: What are the advantages of linear vibrating screen?

A: The advantage of linear vibrating screens is easily changing the sieve mesh. It is suitable for a wide range of materials and is easy to maintain. Besides, they have more enormous throughputs and higher productivity than other types of vibrating screens. Linear vibrating screens are energy-saving and noise-reducing, so they can work for a more extended period.

Q: What materials are used to make a linear vibrating screen?

A: The screen box and screen support frame of the linear vibrating screen are made of high-strength cold-rolled steel plates. The materials of the screen surface include metal perforated plates, wire mesh, and rubber composite plates, while the screen beams are usually made of aluminum profiles and steel plates.

Q: What is the operating principle of a linear vibrating screen?

A: When the linear vibrating screen machine works, the two motors move in reverse directions, which produces the forces that push the materials forward in a straight line. At the same time, the meshes scatter the materials to separate them.