Operating Skill of Industrial Vibrating Screen
Vibrating screens are widely used for grading and screening materials in such fields as chemical industry, minerals, quarry, building materials, water conservancy and hydropower, transportation, smelting and so on. Vibrating screens are efficient screening machines for the classification of bulk material such as coal, minerals, coke etc. There are 40 specifications for this series vibrating screen, of which the heavy duty type of vibrating screens are for the classification of large size materials, while the light duty type of vibrating screens are for the middle and small size materials. The vibrating screen is the circular vibrating type; we called it circular vibrating screen also. Hongxing vibrating screen earns this name by reason of its approximately circular movement. Vibrating screen is of multilayer and high efficient. The eccentric shaft vibration exciter and partial block help to adjust amplitude. This kind of vibrating screen is of long streamline, clear screening for different specifications.
According to the structure and working principle of the screening machinery, it can be roughly divided into the following categories:
(1) Fixed Screen Working part is fixed, the material screening relys on the sliding movement along the working face. Fixed grid screen is a kind of screen that applicated more in the concentrator. Which is used for the coarse crushing or medium crushing in the pre-screening. It is simple in structure, convenient manufacture, does not consume power,we can directly unload the ore to the screening surface. The main disadvantage are the followings : the productivity is low, the screening efficiency is low , which is generally only 50-60%.
(2) Roller Screen The working face is constituted by the horizontally arranged rolling shaft, there are plates on the rolling shaft ,the fine materials are obtained through the gap between rollers or plates. the bulk materials are driven by the roller to one end and finally discharged from the other end. The concentrator rarely use this sieve. To a service-oriented brand integrity, as the professional manufacturer of complete sets of mining machinery, like china dryer, Henan Hongxing is always doing the best in products and service.gyratory cone crusher: http://www.hxjqchina.com/n106.html
(3) the cylindrical sieve The working portion is the cylindrical shape. the entire sieve rotate around the axis of the cylinder, in the general case, the inclination cylinder axis is usually not very large . Fed into the material from one end of the cylinder, the finer level materials adopted by the screening hole of the cylindrical working surface , coarse-grained materials are discharged from the other end of the cylinder. The rotational speed of the cylindrical screen is very low, works smooth, power balance is good. But the sieve is easy to plug, screening efficiency is low, and the work area is small, productivity is low. The concentrator rarely use it to make the screening equipment.
The vibrating screen equipment is composed of the exciter (vibration motor), damping device, the base, the screen surface, screen box, dust cover, drop hopper parts, vibrating screen has a small size, easy installation layout, high screening efficiency, low energy consumption, a high degree of wear-resistant, and noise generated, production safety and other significant characteristics. And sieve, sieve with a variety of materials and installation materials, a variety of industries to meet the demand for different screening and screening efficiency can also be based on the actual needs of users, customers tailored screening equipment, build customer most satisfactory equipment products.
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