As a service supplier of high-quality systems and components for, among others, elevators, belt conveyors and screening installations, Muller Beltex ensures that these systems meet all technical requirements. The company also provides solutions to continuously monitor the condition. and operation of equipment to ensure the continuity of production processes.
Also wear-resistant coverings contribute to safe and sustainable processes.
Elevators
For the monitoring of elevators, Muller Beltex presents in-house developed fail-safe systems as well as third-party products. This allows end users to ensure trouble-free and safe transport, while also fully complying with Atex directives.
Belt misalignment monitoring
One example is the Rub-Block-based belt misalignment monitoring system with a Pt100 temperature sensor. When a misalignment occurs, the belt will run against the RubBlock (a brass rubbing plate), causing its temperature to rise. If the temperature rises above a set value, an alarm is triggered and action can be taken. The Pt100 sensor gives a permanent standby signal, so the system is continuously monitored for proper connection. The Rub-Block is not sensitive to contamination, making it an extremely reliable solution.
Bearing temperature monitoring
In addition, transport and process installations can be fitted with a bearing temperature monitor. This adjustable sensor is sensitive to heat development in case of bearing wear or overload. If the temperature rises, an alarm is generated, just like with misalignment monitoring. An installation can also be shut down at a certain bearing temperature to prevent dangerous situations. Indeed, overheating of bearings is a potential ignition source for dust-air mixtures.
Belt slip detection
For the detection of belt slip, Muller Beltex recommends a closed WG element, for measuring the speed on the axis of the drum. This Atex-certified element is easy to mount thanks to a magnet.
Watchdog PLC
The various monitoring systems can be connected to the ’Watchdog Super Elite’ mini-PLC from UK manufacturer 4B. The Watchdog is particularly interesting for solitary installations that are not connected to a central PLC. The unit records all process parameters and allows response to any alarms. The Watchdog has a colour LCD display for graphical displays. Communication is possible via, among others, an Ethernet RJ45 port for Profibus/Modbus TCP.
Engineering
Besides a comprehensive package of process monitoring systems, Muller Beltex also offers engineering, assembly, technical support and supervision services. The company has great expertise and extensive experience in finding suitable solutions, where quality and safety are paramount. It is therefore advisable to involve Muller Beltex in projects at an early stage.
Process monitoring systems
The Muller Beltex programme of process monitoring systems includes all products which can be important for the safe operation of transport and process installations:
- Belt misalignment monitoring
- Bearing temperature monitoring
- Speed monitoring
- Level measurement systems
- Controllers, indicators and transmitters
- Data acquisition & SCADA systems
- Explosion pressure relief panels
- Flameless pressure relief panels
Wear-resistant linings and sieve balls
In many screening applications, the screening deck is cleaned by screening balls, which are located on a grid directly under the screening mesh. During the sieving process, the balls bump against the screen mesh, keeping the meshes open and clean. Muller Beltex’s Karolee sieve balls are made of hard-wearing polyurethane and have a permanent elasticity, which keeps them actively cleaning for a long time. The material is impervious to attachment or absorption of product and is bacteriologically safe. The balls are lightweight and therefore safe for screening mesh. The operational safety of many processes benefits from the application of wear-resistant linings. Muller Beltex offers a range of solutions for this. For example, excessive wear and product sticking can be prevented by lining installations with the durable Kryptane. This wear-resistant polyurethane has a low coefficient of friction, does not absorb moisture and is permitted for dry foodstuffs. It is suitable for coating, for example, chain conveyors, screw conveyors and screening installations, as well as elevator hoods, hoppers, chutes and drop tubes. Muller Beltex can supply the material from stock in standard sheet sizes 3050 x 1220 mm.
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