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Production of Fractions Containing Screenings for Naturally Moist Sands

A manufacturer of grains for well-known producers of finished plaster asked RHEWUM® to classify 80 t/h of crushed dolomite flour into fractions of 10 mm, 3.5 mm, 2.25 mm, 1.6 mm and 1.0 mm. The feed moisture and clay content made screening difficult

 

While tests showed that a linear vibrating screen immediately blocked the screen mesh, a combination of linear vibrating screen and linear vibrating screen was chosen. Therefore, it was decided to use a combination of screening technologies: 10.0 mm separation is done with vibrating bar screens i...

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While tests showed that a linear vibrating screen immediately blocked the screen mesh, a combination of linear vibrating screen and linear vibrating screen was chosen. Therefore, it was decided to use a combination of screening technologies: 10.0 mm separation is done with vibrating bar screens in the feed area. Separations at 3.5 mm and 2.25 mm were implemented using a directly excited screen with an unbalanced motor, a simple alternative to the electromagnet. Critical separations at 1.6 mm and 1.0 mm are achieved by electromagnet drive. An additional screen mesh heater (max. 30 kW) heats the mesh to over 100°C and prevents caking.

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Production of Fractions Containing Screenings for Naturally Moist Sands
 

Published by RHEWUM America Inc. on Jun 10, 2025

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www.rhewum.us
E: info@rhewum.us
T 888 474 3986 (888 4RHEWUM)
   954 990 8847

Address
10424 W State Rd 84
Suite 7
Davie, FL
33324
United States
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RHEWUM America Inc.

www.rhewum.us
E: info@rhewum.us
T 888 474 3986 (888 4RHEWUM)
   954 990 8847

Address
10424 W State Rd 84
Suite 7
Davie, FL
33324
United States
Show map

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