Supplier sign in
Home
STAY INFORMED
Subscribe to our monthly newsletter.
Your email address will never be disclosed to any third party.
Read our privacy notice.

   

Product description
11.09.2023  |  499x
Share this item
Screening machines for calcium carbonate

Building materials - sieving with finest separations

Calcium carbonate is a material that originated from the remains of single-celled sea creatures over millions of years of Earth’s history.
Today, it is the basis for a range of commonly used building materials, including limestone and dolomite.

Finest separations up to 0.1 mm

A British customer discussed with RHEWUM ways to renew an aging installation for processing calcium carbonate. Several existing sieving machines and sifters were to be replaced. Fine separations up to 0.1 mm were performed.

Setting vibration during operation

Machines with direct excitation of the screen fabrics were planned as the machine type. Drives for the decks on which coarser separations were to be performed were unbalanced motors. The decks for fine separations were equipped with oscillating heads that allow the vibration to be changed during operation via thyristor controllers. The machine types of choice were then RHEsono, RHEmoto and RHEfino as a combination of both types. For the task of feeding the material onto the machines, RHEside feeders with lateral feeding were used.

Customer requirements were met

With this flexible solution, RHEWUM was able to convince the customer. Tests in the technical center showed that the required sieving requirements could be met.

Company information

More items

Increased soda production with modern screening machines from RHEWUM Sodium carbonate is difficult to screen as its hydrophilic properties cause agglomerations. RHEWUM’s high quality sieving technology increases production.
Increased soda production with modern screening machines from RHEWUM
Sodium carbonate is difficult to screen as its hydrophilic properties cause agglomerations. RHEWUM’s high quality sieving technology increases production. Soda ash is obtained from sustainable production sources, such as the processing of wood. Soda ash is an indispensable raw material in partticular for the glass industry, but also used as a bleaching agent in the chemical industry and not least in the lye of Bavarian pretzels. The demand for high-quality soda ash is high. The quality of the soda granulate is significantly influenced by the performance, and thus the quality, of the screening machine in use. Soda ash is considered to be a difficult material to sieve, which easily sticks to the screening mesh and tends to form lumps due to its hydrophilic properties. The screening mesh can quickly become clogged and the entire production come to a standstill. Thus, the reliable supply of soda ash for important industrial sectors, and with it the capacity of soda ash producing plants, depends on the screening machine. With the RHEWUM WA, RHEWUM offers a state-of-the-art screening machine with direct excitation of the
17.08.2021  |  1262x  |  Product news  | 
Environmentally conscious and high quality painting at RHEWUM In future, RHEWUM will use environmentally friendly water-based paints when painting its machines.
Environmentally conscious and high quality painting at RHEWUM
In future, RHEWUM will use environmentally friendly water-based paints when painting its machines. This not only benefits our environmental balance (VOC balance), which can be reduced to up to 78%. In this way it is now possible, among other things, to significantly reduce the use of diluents. A high quality and resilient corrosion protection is of course guaranteed. And that even with lower layer thicknesses. In addition, the drying temperatures can be halved from the current 80 ° C to approx. 60 ° C and drying times from four to two hours. Would you like to find out more about RHEWUM and its products? Contact us, we look forward to your questions.
25.03.2021  |  1336x  |  Product news  | 
Virtual screening tests and production tours at RHEWUM From now on, customers can follow the screening test of their product live or book a virtual tour of the RHEWUM GmbH production facilities. If you wish, we would be happy to combine the two for you.
Virtual screening tests and production tours at RHEWUM
From now on, customers can follow the screening test of their product live or book a virtual tour of the RHEWUM GmbH production facilities. If you wish, we would be happy to combine the two for you. Considering the current pandemic situation, some time may pass before customer visits to our company are part of our daily business again. But we don’t want to keep you, our customers, waiting. That’s why we are offering you the opportunity to follow your screening test live in our technical center via smartphone, tablet or computer. Join us virtually when your product is tested and discuss the results directly with our screening experts. You can find out more about the process of a screening test on our homepage. Or experience RHEWUM GmbH live on a tour through the production facility and the technical center where you will get an exciting insight into our German quality production. Of course, you can also combine the tour with your screening test. Make an appointment with our screening experts today for your personal, virtual meeting at RHEWUM.
10.03.2021  |  1344x  |  Press release  | 
US producer of plastic granules relies on RHEWUM wet screening machine In his production chain an American manufacturer will no longer use two machines for screening his plastic granulate, but only one: the Rhewum WAFL with two screen decks.
US producer of plastic granules relies on RHEWUM wet screening machine
In his production chain an American manufacturer will no longer use two machines for screening his plastic granulate, but only one: the Rhewum WAFL with two screen decks. Pavement markings have been used since the beginning of the 20th century. Today they are part of the modern street scene and without them we would sometimes lose orientation. The line markings create a clear and safe traffic guidance. The products of the world’s leading North Carolina-based manufacturer are not only used on roads and highways, but also on taxiways, take-off and landing runways, parking lots, intersections and in all types of commercial, construction, government, industrial and architectural environments. So these markings help drivers, pilots and pedestrians to move safely in the right direction. The exact process of producing road markings will not be discussed in detail at this point, as it is quite complex. However, plastic granulate is processed in the production of road markings, that must be dewatered. With the help of the Rhewum WAFL the water can be perfectly separated from the product and a low residual moisture of approx. 8 percent can
24.11.2020  |  1576x  |  Product description  | 
PORTALS
Recycling-Portal Schuettgut-Portal BulkSolids-Portal
SIGN UP FOR OUR NEWSLETTER
Newsletter archive
Service and contact
ContactDisclaimerPrivacyAdvertising
FOLLOW US
Linked