The CRS mixer system series CMS 2000 is a versatile system that has many application possibilities and options for treatment of difficult mixtures and suspensions. The system has a flexible and modular design to meet individual needs in configuration, size and material. It has various reactor modules, gas- and liquid injection modules and control modes. Documentation and safety fulfill industrial standards.
Applications:
- High shear mixing of high viscous suspensions
- All known MC, HC and LC bleaching processes
- Fiber degradation versus mechanical and chemical input
Features:
- Rpm is controlled in order to achieve a swift and safe fluidization of the mixture. The RPM (level, start and stop) is controlled manually or automatically.
- Stirrers for various purposes can easily be replaced.
- Temperature control including ramping and rapid cooling - a special temperature element inside the vessel is logging fast and precise local values.
- Pressure and volume are monitored and controlled. The reaction pressure is determined by the reactor load, injections, temperature, gas head pressure and the impinger position. The impinger (inner lid) can be manoeuvred during the process to accomplish volume or pressure gradients. The position, pressure and the free volume is logged versus time. The piston has a sieve towards the process compartment and two pipe in/outlets for purge, washing, dosing vacum pumping.
- PC with visualization of the process and graphs
- Gas Injection is a unit operation. All gases (oxygen, ozone, chlorine) are contained at high pressure in bombs with suitable volumes and pressure transmitters. The gas is fed into the reactor and the difference of gas content in the calibrated volume is measured and logged. Control and measurement is done automatically by the computer during operation or manually by the operator himself. The software calculates the adiabatic expansion to make a quick and relatively precise dosing.
- Liquid Injection is a unit operation. Two different liquids can be injected intermittently and consecutively with desired amounts and at a set time schedule. The injection range can be altered by quick replacement of infusion cylinders. All dosings are performed with zero dead volume. The actual liquid injections are logged.
- Typical safety devices are safety valve, interlocks for dangerous operation, hardware protection, software routines to prevent out of range experiments.
- Sampling, charge and discharge of small liquid samples can be accomplished through the liquid injection port. Other samplings (pulp and large liquid amounts) need special valve arrangement.
- A range of optional in-situ sensors can be used such as pH-electrodes, fiber optic sensor for absorbance/transmittance spectroscopy
- Manual and computer control by switching and typing values on the PC or automatically by setting a recipy and running the the process according to the recipy. Logging of process values and injections as well as visualization is always accomplished.
- Database logging and handling
- Rack with vented Closet. The motor and the reactor vessel are fixed in a rack. The dosing system is located in a separate cabinet. Hydraulic aggregate, ozone compressor and ozone generator can be housed in an optional attached closet.
- Ozone System for generation of high weight% and high pressure (0-15 bar), fast injection and destruction.
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