Roller Screen commonly used in the screening of coarse material, up to a maximum size of Mining 500mm, suitable for screening large piece of coal, limestone and shale, is also used as a washing machine or a mining machine to use. The roller screen has higher screening efficiency, and the sieved material is less pulverized; however, the structure is more complicated and cumbersome, and the roller wears faster when the hard material is sieved. In the multi-metal mines currently being replaced by heavy shaker.
The calculation formula of the roller screen is
q=q 0 A (1)
Where q - the amount of roller screen treatment, t / h;
A——roller screen screening area, m 2 ;
q 0 —— single-sided screening area treatment capacity, t / (m 2 · h), see the table below.
 
Roller screen unit area processing amount q 0 value
Screen size / mm
50
75
100
125
q 0 /t·m -2 ·h -1
40~45
60~65
75~85
100~110

Carbomer

Carbomer Carbopol 940,also called Carbomer or Carboxypoly-methylene is a generic name for synthetic high molecular weight polymers of acrylic ACID used as thickening, dispersing, suspending and emulsifying agents in pharmaceuticals and cosmetics. They may be homopolymers of acrylic acid, crosslinked with an allyl ether pentaerythritol, allyl ether of sucrose or allyl ether of propylene. Carbomers are found in the market as white and fluffy powders. They have the ability to absorb, retain water and swell to many times their original volume. Carbomers codes (910, 934, 940, 941 and 934P) are an indication of molecular weight and the specific components of the polymer . This product is acrylic bonded allyl sucrose or pentaerythritol allyl ether polymer. Calculated on dry goods, including carboxylic acid group (-cooh) group - should be 56. 0 % ~ 68. 0 %.

Carbomer,Carbomer 974 P,Carbopol 940 Carbomer,Carbomer U 21

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