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We have Laser Cutting Machine, CNC bending machine, Spot Welding Machine, Polishing Machine,Fixed bench press, air plasma cutting machine, platform CNC punch, CNC hydraulic guillotine shear, four-column hydraulic press, universal lifting table milling machine, radial drilling machine, hydraulic digital display sheet Bending machine,
Production Market
Our products have been exported to Russia, USA, France, Namibia, Saudi Arabia, Thailand, Uruguay, Singapore, Spanish, Germany, Cyprus,Botswana, Korea, Switzerland,Newzeland, Pakistan, Brazil, Malaysia, Spanish, Peru, Chile,Turkey, Portugal, etc.
Our produck
Our produck have Vibrating Screen, Screw Conveyor, Belt Conveyor, Vacuum Conveyor, Bag Dumping Station.
Quality Management
We are qualified with ISO quality management system and CE certificate, all the main components are fine manufactured in our own factory with strict inspection, and quality is always our priority.
Differences Between Linear Vibrating Screen and Circular Vibrating Screen
Vibrating screens are mechanical screening equipment used commonly in recycling industries to separate materials into different sizes and grades. They are designed for multiple purposes like material classification, sizing, stone crushing, etc. Crusher production lines use two different types of vibrating screens: linear vibratory screens and circular vibratory screens. Both are different from each other in terms of their purpose for screening and the scope of application.
Movement track
A linear vibrating screen uses a vibrating motor which causes the material on the screen to move upward and forward in a straight line. It contains twin vibrating motors that operate synchronously in opposite directions producing centrifugal force parallel to the motor axis. A circular vibrating screen has an eccentric weight attached to the vibrator’s rotating shaft, moving material in a circular motion track.
Vibration exciter
A linear vibrating screener consists of two eccentric shafts that work on the principle of vibration motor excitation. Hence, they are called double-shaft or biaxial vibrating screens. A circular vibrating screen is composed of a single exciter, the shaft, and requires an inertial motor to operate. Thus, they are known as uniaxial vibrating screens.
Screen hole blocking
When screening uneven or highly humid material, linear vibrating screens are likelier to experience screen hole blocking due to their small screen openings and high-frequency vibrations. On the other hand, circular vibrating screens have large screen openings and move the material in a high-speed circular trajectory. Hence, they are less prone to screen hole blocking but are more susceptible to material bouncing due to their rapid speed.
Installation angle
In linear vibrating screening, the inclination angle ranges from 0-15 degrees. The steeper the surface angle, the faster the material will screen. Circular vibrating screens operate at an installation angle of 15-20 degrees. This angle helps to optimize the speed of the moving material, making sure that it stays in contact with the screen surface for a longer period of time.
Material
The frame or plates in the linear vibrating screener is made from lightweight stainless steel, carbon steel, and alloys. Such materials are abrasion resistant and provide support and stability to the machine. The circular vibrating screen is manufactured from thicker and more durable material like manganese steel which can withstand high-speed vibrations.
Shape structure
A linear vibrating screen has a square or rectangular shape. Its design consists of a series of parallel single or double-deck vibrating screens. Circular vibrating screens have a rounded screening shape with multiple decks to separate materials.
Applicable fields
Linear vibrating screening can be used in the pharmaceutical and food industry to classify and separate fine particles like sugar and grains or dry powder for medicines. Circular vibrating screens are best used to screen coarse or large particles having high moisture content e.g. coal in the mining industry.
The linear vibrating screen is a kind of equipment that makes the screen surface vibrate linearly through the vibrator driven by the motor, so as to realize the material screening. Its working principle is to divide the materials that reach the top of the sieve into two categories: the materials larger than the sieve size are thrown out of the sieve, and the materials smaller than the sieve size pass through the sieve. Different sieve holes can screen materials of different sizes to meet different screening requirements. The main components of the linear vibrating screen include a vibrator, a screen frame, a screen, a jumping ball, an inlet, and an outlet.
Linear vibrating screen is mainly used in screening, grading, iron removal, bonding and dusting of various dry powder granular materials. The specific fields involved are: mining, coal, building materials, metallurgy, chemical industry, light industry, food, medical treatment, pharmaceuticals, food and other industries. In the coal industry, linear vibrating screens are widely used in coal washing plants for primary selection, coal crushing yards, coal bunkers, coal pile screening, coal slime screening and other occasions. In the building materials industry, linear vibrating screens are widely used in cement, sand, concrete, brick, material screening and other fields.
The linear vibrating screen can conveniently and efficiently complete the fine screening of products, improve screening efficiency and save raw materials. At the same time, its performance is stable, its structure is simple, and it is easy to use and maintain, which can reliably improve the efficiency of the production line and product quality.
Linear Vibrating Screens Provide Efficient Screening by Incorporating Conveying Element
With efficiency at the forefront of any processing line, separating out materials whether for coarse grading, fine grading, de-dusting, dewatering or protective screening can prove to cost time and space when the separation process is not efficiently incorporated into the rest of the line. However, a vibrating screen with a predominantly linear product displacement incorporates a conveying element as well as separating, meaning that product can be separated as required whilst passing onto the next process in the line and retaining production efficiency.
A linear vibrating screen can be designed in open or fully enclosed construction with bodies manufactured from carbon or stainless steel or combinations of both materials. These combine lightness with strength and high wear resistance for a long working life. Open construction models often discharge under-sized product into a storage hopper or conveyor. Enclosed models, incorporating either bolted or quick release dust tight covers against atmospheric pollution, collect in conveying pans and discharge through a spigot outlet below.
With the ability to convey whilst separating, a linear vibrating screen is often used for container filling and safety screening protecting against agglomeration, over-sized product or large particles which could cause problems in processing or quality control further down the line, whilst maintaining optimum feed rate. Another common application is to incorporate a hopper with a screen – discharging from the hopper, removing the fines and feeding the material onto an inspection deck, thus improving the efficiency of inspection.
A linear unit can be fitted with a single screening deck, multiple decks, or with interchangeable panels if the unit is to handle varying materials, all offering easy clean down and maintenance. As with all industrial vibration equipment, wear to the deck or panels is minimal and excellent separation characteristics mean minimal pegging or blending during operation. An electromagnetic drive unit can be fitted for control over conveying speeds, or alternatively a vibrator motor for high capacity throughput and continual operation.
Linear vibrating screens are successfully used for:
Coarse grading – Of bulk materials where extreme sizing accuracy is not required
Fine grading – For high accuracy over particle sizes less than 3mm down to 50 microns
De-dusting – For the extraction of undersized particles
Protective screening – For the removal of oversize particles, impurities and other foreign bodies etc.
Separation – For removal of coarse material from fines
Dewatering – For recovery of solids from washing media
Extraction – For removal of non-soluble impurities from washing and carrier fluids.
Look at the material, determine the screen and design
Look at the size of the material, estimate the mesh size required by the material, and determine the mesh number of the screen. The larger the mesh number, the finer the mesh;
Second, look at the specific gravity of the material. The specific gravity of the material above the sieve and the material under the sieve affects the size design of the discharge port. The discharge port with a large specific gravity is larger, (just tell the manufacturer, they will design it);
Thirdly, depending on the material properties, moisture content, mud content, material density, etc., will affect the screening efficiency. It may be necessary to adjust the inclination angle, opening rate, etc., or to carry out special design of the machine.
Look at the demand, determine the number and size of layers
The demand here refers to two aspects, one is the grading demand, the other is the production demand
The maximum 5 layers of the linear vibrating screen can be divided into 6 kinds of fineness, and the number of screen layers can be selected according to the type of mixed material or the distribution of particle size in the same material;
The larger the model, the greater the output. According to the output demand of the screening material, decide which model to choose, or tell the manufacturer to help recommend it.
Look at the space and determine the position of the motor
Space refers to the space where the linear vibrating screen is installed. Generally, the motor of the linear vibrating screen is installed under the screen box, but when the position of the discharge port is adjusted, the motor needs to be installed on the side or on the top.
When the installation space is not wide enough, or manual feeding is required, for safety reasons, the motor is selected to be installed above.
In addition, linear vibrating screens are classified as follows:
Carbon steel linear vibrating screen, stainless steel linear vibrating screen and air-cooled linear vibrating screen
Carbon steel linear vibrating screen is suitable for screening common materials without special requirements;
Stainless steel linear vibrating screen is resistant to acid and alkali corrosion, not easy to rust, clean and hygienic, suitable for use in the pharmaceutical and food industries with strict hygiene requirements, or for screening some corrosive materials, such as chemical and environmental protection industries;
Air-cooled linear vibrating screen is suitable for screening high temperature materials that are afraid of water and moisture.
Linear vibrating screens are used in a wide range of application fields due to their ability to screen and grade various materials. Some of the common application fields of linear vibrating screens include:
Mining and mineral processing
Linear vibrating screens are widely used in mining and mineral processing industries for the screening and grading of various ores and minerals.
Chemical industry
Linear vibrating screens are used in the chemical industry for the screening of various chemicals, such as fertilizers, plastics, and resins.
Food and beverage industry
Linear vibrating screens are used in the food and beverage industry for the screening of food products, such as flour, sugar, and spices.
Pharmaceuticals industry
Linear vibrating screens are used in the pharmaceuticals industry for the screening of drugs and pharmaceutical products.
Recycling industry
Linear vibrating screens are used in the recycling industry for the sorting and separation of various materials, such as plastics, metals, and glass.
Construction materials industry
Linear vibrating screens are used in the construction materials industry for the screening of materials such as sand, gravel, and crushed stone.
Maintenance of Linear Vibrating Screen
Linear vibrating screen is one of the most commonly used vibration screen. Its maintenance and repair is essential, as good maintenance strategy and maintenance method can effectively prolong the lifespan of linear vibrating screen.
The maintenance strategies of linear vibrating screen can be divided into three phases, before use, in use and after use.
Maintenance before use
linear vibrating screen should equip with electrical protection device; for initially use, anchor bolts should be checked each time before using in order to prevent loosening; check for damage on the screen mesh etc.
Maintenance in use
Check the rotation of motor, if does not meet the requirement, adjust the power phase sequence; check unusual of the vibration; examine the stability of current.
Maintenance after use
Periodically check the lubricate situation of machinery components, every two weeks operation, need to add the lubricating oil; after a total operation of one thousand five hundreds hours, check the wear of bearing; if long time do not use it, insulation resistance should be measured before use.
We're well-known as one of the leading linear vibrating screen manufacturers and suppliers in China. If you're going to wholesale linear vibrating screen made in China, welcome to get quotation from our factory. Also, customized service is available.
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