Vibrating Screen Application in industrial production

Shaker as many products in a production line equipment, the industry has a wide range of applications, both in the laboratory or in the laboratory, the vibrating screening

machines are basically used in the production of industrial screening. Below we kind of industrial screening machine characteristics and classification section explains:

Industrial screening machine according to purpose and structural features can be divided into:

① cylindrical screen. This sieve often used in washing off the mud, sometimes used in fine materials dry or wet sieving.vibrating screen design

② rolling screen. 50 ~ 500mm widely used screening coal and coke.

③ fixed sieve. Often called the bar screen or grizzly. Screen surface for the strip or grid, mesh is generally not less than 50mm. Commonly used in ore and coal crushing pre-

screening before.

④ fine sieve. Fine sieve structure is simple, a sieve for 45 ° ~ 65 ° fixed placement, the screen surface corrosion from stainless steel bars or nylon sieve grate structure,

hitting the back of the screen frame unit, slurry into tangential to the screen surface, perpendicular to the lateral pores (width 0.1 ~ 0.5mm) downstream. Fine sieve is mainly

used for screening magnetic concentrate, the coarse gangue and even the living body to sieve out (sometimes regrinding and re-election), can improve the final concentrate grade. vibrating screen classifier

Research and development is also being used in closed-circuit grinding mechanism into operation frequency fine sieve.

⑤ shaker. Coal preparation plant or in the most widely used, materials handling size range of 3 ~ 200mm, screening efficiency is generally up to 90%. By operating principle,

structure and use different, can be divided into screening, the coarse-grained materials, coal or heavy wash mine vibrating screen, screening, the fine material or coal self-

centering shaker as well as for medium and fine ore or coal screening, dewatering and off line media and resonance sieve shaker, etc.
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The loose material through the screen surface layer or layers, by sieve size products into different levels of granularity of the process. In the screening process of the

material through the screen surface stratification by size and separation; Smaller particles pass through the sieve sieve sieve become products; larger than the particles remain

in the sieve sieve sieve surface to become products. The main factors affecting the efficiency of screening are: nature of the material (including grain size, viscosity and

shape, etc.), the structure and operating conditions of the device. Screening is widely used in mining, construction, metallurgy, chemical, cement and other industrial sectors.

Use is divided into sieve analysis laboratory and industrial screening sieve sets.

    Common set of international sieve system are: Tyler standard sieve system, the German system and the international sieve sieve system. Tyler (Tyler) screen surface standard

sieve system is one inch (25.4mm) Length of all the number of square mesh (mesh mesh) to the nominal; with a mesh sieve to 0.074mm (200 mesh called) is benchmark sieve, sieve

than thought; sets sieve mesh size ranging from 0.038 ~ 7.925mm. International system based on 0.075mm sieve sieve sieve basis, compared to 1.259 for the basic screen.

Depending on the application of industrial sieves are generally divided into:

① secondary screening. Commonly used in the screening of qualified before crushing size products, called pre-screening; or broken products used to control the particle size,

said check screening. Industrial screening is also sometimes used ore and coal dewatering, washing and removal of the heavy media beneficiation media.


② ready screening. The materials will be selected before the screening of several levels of granularity in order to improve the selection and reselection of separation

efficiency.

③ independent screening. Products supplied directly to users, such as the rich iron ore for smelting, for gas fuel or chemical fertilizers made with bituminous or anthracite

lump coal, and gravel used in construction such as screening.