Oct 3, 2022
Controlling grinding aid in cement industry
A major cement producer chose Flowrox™ metering pumps to control grinding aid in cement industry. The process is pumping poly glycol acid. The Flowrox pumps have replaced mechanical diaphragm pumps and have proved better overall reliability and accurate dosing.
In a nutshell
Customer: A major cement producer in USA
Products: Flowrox metering pumps packaged as a skid.
Process application: Replacing mechanical diaphragm pumps
Benefits: High turndown ratio, reliability, complete grinding agent delivery system
Replacing mechanical diaphragm pumps
Grinding aids such as glycol, amines, and acetic acid help cement particles to flow efficiently. This reduces grinding energy and results in increasing product throughput. These grinding aids are added to the cement prior to the final grinding circuit.
For controlling the grinding aid to the circuit, the customer was using individual diaphragm pumps and was not satisfied due to inconsistent dosage control and pump unreliability. Flowrox metering pumps were chosen to pump poly glycol acid and replacing mechanical diaphragm pumps instead.
Flowrox metering pumps proved to be a better option because they have a high turndown ratio. This makes it ideal for finite control and proper dosing to the system. Reliability improved as well, because the only repair item in Flowrox metering pumps is the tube. Providing a value-added solution, Flowrox packaged the pumps as a skid to include the chemical feed tank.
The end result
The plant was very pleased with the complete grinding agent delivery system. The Flowrox pumps were delivered as a plug-and-play skid and ready to start up as soon as the electrical and piping connections were made.
Expert knowledge paired with decades of experience
Flowrox products have been chosen to more than 5500 dry and wet cement applications which boost the process performance in several hundred cement plants. Metering pump solutions can be also found in various chemical dosing systems like metallic salts, sodium hypochlorite and its derivates and many more.
Text originally published in 2018, and slightly updated in April 2022, due to the company name change to Valmet. As of the 1st of April 2022, Flowrox brand belongs to Valmet.
For additional information on this content, please contact todd.loudin@valmet.com.
Discover more about Flowrox valves and read other customer stories
Flowrox™ heavy duty pinch valves
Flowrox PV, PVE and PVE/S heavy duty pinch valves are designed for shut off and control applications involving abrasive or corrosive slurries, powders or granular substances. In the open position, the valve is full bore with no flow restrictions. During closing, two pinch bars squeeze the valve sleeve shut on the center line. Bubble tight shut-off is provided even if solids have built up on the sleeve wall.
Flowrox™ PVG and PVEG pinch valves
Flowrox PVG and PVEG pinch valves are robust and cost effective with simple, single-sided closing mechanism. PVG valve has a strong valve body and opening tags in the sleeve as a standard. PVEG valve has a corrosion resistant and light-weight plastic body. Through the reliability and structure, both kinds of valves offer substantial savings based on improved performance, long service lifetime and low total cost of ownership. Flowrox PVG and PVEG valves are ideal for low cycle applications involving abrasion, corrosion and aggressive slurries
Flowrox™ slurry knife gate valves
Heavy duty slurry knife gate valve isolates flow even in the most demanding process conditions. The bi-directional flow tolerates backflow and elastomer sleeves on both sides of the gate provide tight shut off. Flowrox knife gate valve follows the concept of the ease of maintenance. The valve body is cast in one piece which eliminates the need for sealing between the body halves. Load distribution ring is integrated into the valve sleeves. The valve contains only two service parts; ring sleeves and secondary seal.
Outstanding performance and zero maintenance with reliable Flowrox pinch valves
Reliable Flowrox™ high performance PVE pinch valves proved to be a perfect solution for a power generation water treatment plant located in Mpumalanga, South Africa. Six years after the installation of PVE pinch valves in power generation plant no maintenance has been required.
Valve management service provides production reliability for maintenance shutdowns at Outokumpu’s steel plant
The Outokumpu steel plant is an impressive sight next to the Gulf of Bothnia in Tornio. Despite being Outokumpu’s largest plant, it is very compact with everything close by. The plant produces stainless steel, and its history dates back to the 1960s. Its cooperation with Neles has spanned decades. “Cooperation has always been key,” says Aleksi Korteniemi, Category Manager, Outokumpu.
Read the success story
Spare parts for Flowrox™ valves
We manufacture and deliver high-quality spare parts for all Flowrox™ valves. Genuine parts ensure that they are certified and specifically suited for your process. Elastic sleeve is the core of the FlowroxTM valve. It is the only part in contact with the process medium.