Round vibrating sieve machine

Types of round vibrating sieve machine

A round vibrating sieve machine is a screening device that separates materials of different sizes and shapes. Manufacturers make it with several circular screens that have various mesh sizes. The vibrating mechanism causes the screen to oscillate, which moves materials across the screen and separates them.

Round sieves are available in two main types:

• Rotary sieves:

  A rotary vibrating sieve machine works by screening materials in a circular motion. They have a sieve that layers materials horizontally. The machine screen courses materials separately based on their size. Smaller ones fall through the mesh and are collected as products, while larger ones return to the top of the device for further screening. The circular motion of the sieve is created by an eccentric weight attached to the rotary motor. This vibrating sieve machine is commonly used for granular materials like sand, salt, sugar, and flour.

• Gyratory sieves:

  The working principle of gyratory sieves is quite similar to that of rotary sieves. However, gyratory sieves have a tapered screen that is positioned vertically. Materials approach the screen from the top and move in a circular and elliptical motion to filter through the mesh. Bigger and smaller materials move in opposite directions. Gyratory vibrating sieves can separate solid-liquid mixtures like sludge, slurry, or muddy water. They are also ideal for powder materials with fine particles.

Both the rotary and gyratory vibrating sieve machines are further categorized into air-flow sieves, ultrasonic sieves, mobile sieves, and check screening sieves, among others. A mobile vibrating sieve machine is compact and portable. It is often used in industries where the device is moved to different locations for material screening. A mesh check screening sieve separates mixed materials during the production process. It is fixed within production lines to monitor the quality of materials used to create end products.

Vibrating sieves are useful in various industries. They are used to filter milk and cream in the dairy industry. Powder manufacturers use sieves to ensure that their products have a final formula with the right consistency. The construction industry uses vibrating sieves to sort aggregate and sand materials. Fertilizer and chemical manufacturers use the machines to separate unwanted lumps and ensure that their products are of desirable quality.

Specifications and maintenance of round vibrating sieve machines

Specifications

• Capacity

  The circular vibrating screen has a 2,500 kg/h to 7,200 kg/h separating capacity.

• De-dusting

  The de-dusting round vibrating sifter filters 600 kg/h to 3,600 kg/h of air volume.

• The number of product flows

  It can handle from one to ten product flows.

• The diameter of the screen

  The vibrating screen mesh size ranges from 1,000 mm to 2,800 mm.

• The mesh

  It varies from 0.5 mm to 20 mm, depending on the material to be sieved.

• The separation

  Up to four fractions can be separated in a single machine.

• Handling of materials

  It can scrutinize solid materials ranging from 0.5 mm to 20 mm. Some advanced models can also filter solid slurries.

• Operating temperature

  Machine operating temperatures can vary between -40 °C and +70 °C.

• Vibration and frequency

  The circular screen's vibrating frequency varies between 3,000 and 4,500 rpm, depending on the size and material of the mesh.

• Dust control

  Options include a bag filter, a duct filter, wet extraction, or no filter at all.

• Fans

  Coaxial and inline single or dual identification with brushless motors are common.

Maintenance tips

• Daily inspection

  On a daily basis, they should examine the vibrating screen for signs of wear and tear. It is essential to check the power display to ensure the required voltage and other parameters are within the set limits.

• Weekly inspection

  A weekly inspection routine should include an overall examination of the bulk sifter to identify any loose or missing connecting parts. It would also include an alignment check of the feed and discharge sections, and any adjustments necessary to ensure no material is left unprocessed should be made.

• Monthly maintenance

  A more thorough examination should be undertaken monthly. It should include a detailed belt inspection for damage and the adjustment of the tension if necessary. Also, attention should be given to any abnormal noise. Any unusual sounds should be investigated immediately to avoid mechanical failure.

• Quarterly more detailed examinations

  After three months, a much more detailed inspection should be undertaken. All electrical connections and cable glands should be examined. Any critical components should be lubricated, and the bearings should be greased with the correct type of material and in accordance with the manufacturer's guidance and instructions.

Industry uses of round vibrating sieve machines

A large number of manufacturing and food processing industries make use of the round vibratory sifting machines. These devices are of great help to quality control processes by screening products to ensure only the right ones are sorted for packing or sale. Industries such as the food industry, pharmaceutical, chemical fertilizer, ceramics, plastic, metallurgy, mining, salt, rubber, glass, and Agricultural Pests use these sieves for various purposes.

• Food Industry: Sieving flour, salt, sugar, spices, cocoa powder, baking soda, yeast, grain, milk powder, protein powder, edible starch, fruit and vegetable powder, coffee powder, ground tea, solid seasoning, and other food materials to remove impurities, clumps, and residue. Vibro sieves are also used during the packaging process to screen tea leaves, fruit & vegetable products, fruit & vegetable juice powder, coffee beans, beer yeast, and salt to ensure food safety and compliance with quality standards. Vibrating sieves are also used to separate unwanted solid material during the processing of edible oil and wine. Furthermore, they are used to sieve edible fruit and vegetable extracts and starch for the same reason.
• Pharmaceutical Industry: In the pharmaceutical industry, quality control is of utmost importance. Vibrating sieves separate tablets and capsules according to size and filter raw materials, additives, and finished products. The sieves screen chemicals used to manufacture pharmaceutical products and also sieve the air or nitrogen used in the pharmaceutical industry to ensure it is free of any solid impurities.
• Chemical Industry: The chemical industry round vibrating sieve machines vary in screen from chemical powders to liquids. In the chemical industry, vibrating sieves are used to screen out a variety of products such as coatings, pigments, inorganic chemicals, chemicals used in agriculture, petrochemical products, water treatment chemicals, and other chemical agents. In the case of chemical liquids, vibro sieves are used to separate solid impurities from oil, lubricants, and other liquid chemicals. The sieve machine plays an invaluable role in the chemical industry by preventing impurities from ruining the chemical reactions involved in the process and keeping end production up to standard chemical specifications.
• Granite sieve machine: These machines can separate grit of different sizes in the mining industry and separate raw materials according to their grade. For example, fertilizers such as organic fertilizer processing equipment, especially sulfur powder and phosphate fertilizer processing equipment, also sieve granules in the agricultural industry.

How to choose round vibrating sieve machines

When purchasing vibrating sieves for sale, it is vital first to know the suppliers or manufacturers. Choose reputable manufacturers who offer quality vibrating sieves and have a friendly after-sale services. Look for sieve machines that have replacement parts so that if any part breaks or becomes faulty, the vibrating sieve does not have to be discarded.

It is also important to create an inventory and determine the sieve machines that customers or end users prefer. Customers' preferences dictate the inventory to be created when reselling. It will also help to know the end user's industry so that the preferred sieve can be chosen and the vibrating sieve will not go to waste. For instance, food industries prefer sieves with food-grade materials, such as stainless steel.

When choosing distinct models, look for models with advanced technology, such as noise-canceling features and self-cleaning capabilities. These are the features that customers will demand and prefer. Compare different models and their features and choose models with distinct features that will sell quickly.

When selecting the vibrating sieves, negotiate prices with the suppliers for bulk orders so that a discount can be given when reselling the products. It is also important to consider different shipping methods, especially for buyers who are purchasing overseas. Find out if air, land, or sea freight is preferable, and choose a supplier who will offer an affordable shipping method.

Finally, because inventory turnover is essential in business, choose the right amount of stock so that they do not sit in storage for too long. Conduct market research to see how many customers are interested in purchasing the vibrating sieves and take their opinions into consideration before placing an order.

Q&A

Q1 What kinds of products does the round vibrating sieve machine separate?

Besides food products, the round vibrating sieve machine can separate minerals like coal and sand and chemicals like resin and pigment. In the pharmaceutical industry, it separates tablets, powders, and granules. Other products it can separate include plastics, metals, textiles, and construction materials.

Q2 How does a round vibratory sieve machine differ from a linear vibrating sieving machine?

Both machines give the same end product - the separation of materials. However, the linear vibrating sieve machine is more suitable for massive stock sieving, whereas the round vibrating machine is better for precise separation and classification of materials in smaller quantities.

Q3 Can operators change the mesh sizes of a round vibrating sieve machine?

Yes, depending on the material's characteristics and the desired outcome, the machine can have different mesh sizes and configurations to modify the sieve's separation range.

Q4 How does the operator know when to conduct maintenance on a round vibrating sieve machine?

Operators and manufacturers may provide guidelines on maintenance schedules based on usage hours. Manufacturers provide the maintenance manual and indicate the critical parts requiring regular maintenance and those that need constant attention.