High frequency screen is widely used in mineral processing, coal, chemical industry, brick, food, pharmaceutical, alkali, chemical fertilizer, paper and other industries of various materials of dry and wet screening, grading and dehydration.Used in the grinding classification process of concentrator in fine particle classification work, and at the appropriate feed concentration, feed particle size fraction content (200 meshes), as well as the requirements under the screen size and feed particle size under the condition of less than 30%, the difference between the screening efficiency is as high as above 70%.Due to the high screening efficiency, can greatly reduce the cycle load and oversize of qualified grade levels, so as to improve the processing capacity of mill (usually 5 ~ 10%) can be improved.Strict screening process for undersize material granularity control, eliminate coarse grain of adverse impacts on the concentrate grade;Other pulp in high frequency under the action of small amplitude oscillations of screen surface, has the effect of density stratified sampling, the high density small particles are easy to fall into through sieve sieve surface, thus can obviously improve the undersize material product
1, sieve machine adopts a new principle of design, is a kind of new structure of efficient sieving mechanical vibrating screen points.
2, vibrator by actuator driven screen surface for high frequency vibration, static screen box.Vibration system is designed to work in the near resonance state, the whole machine after damping bearing, basic don't make the ground under dynamic load, sieve machine don't need to make the foundation, directly installed on a solid flat on the ground or ordinary steel structure platform can work normally.
3, the screen surface vibration frequency 50 hz, the amplitude of 0 ~ 2 mm, vibration intensity for 8 ~ 10 times the acceleration of gravity, is the general mechanical vibrating screen vibration intensity of 2 ~ 3 times.Screen surface is not easy to plug holes, high screening efficiency, processing capacity.Especially suitable for the screening of fine powder material.Grading granularity 0.074 ~ 1 mm.
4, screen surface consists of three layers of different flexible mesh screen.The underlying steel cable pu network supporting network, laying wire diameter and mesh are not the same double stainless steel wire braided composite net.Composite layer for work online network, direct contact with the material for screening work, composite off-line layer at the bottom net, used for dispersion force and vibration, to ensure that the work net of high screening efficiency and prolong the service life.Have hooks on both ends of the screen mesh, facilitate screen handling and adjust the degree of tension.Into the buffer material sieve plate to make pulp dispersion uniform, avoid shock damage to screen directly.
5, convenient sieve machine installation Angle is adjustable, for the wet screening installation Angle of the concentrator is commonly 25 + 2 °.
6, vibration sieve machine is controlled by computer to adjust parameters, each vibrator vibration parameters can be set in a separate regulation.On the control set has strong transient vibration, by setting continuous strong transient vibration parameters, regular cleaning sieve surface, to prevent hole.
7, vibration transmission system adopts high quality elastic flexible link, long-term reliable operation;Screen machine for energy-saving products.Single vibrator power 0.15 kW, mineral processing commonly used 2420 type high frequency electromagnetic screen, power is not more than 1.2 kW of power consumption.
8, screen box side plate is made of steel plate overall bending forming, both improve the whole rigidity and working reliability, sieve machine equipment appearance more beautiful.
9, sieve machine according to the different needs of customers to configure different types of electric control cabinet, in order to realize the parameter set, remote control, historical records and various additional functions such as fault alarm
The Parameters of high frequency Screen:
| Specification |
Sieve mesh (mm) |
Max. feeding size(mm) |
Screen obliquity (o) |
Amplitude |
Frequency (r/min) |
Motor power (kw) |
| 1200×2000 | 0.15~0.25 | 1 | 15~55 | 0.6~2.2 | 2800 | 2x2.2 |
| 1500×3000 | 0.15~0.25 | 1 | 15~55 | 0.6~2.2 | 2800 | 2x3 |
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