Powder Engineering
Classifiers are used for the classification of dry bulk materials. The Continuum Fine Dynamic Classifier CDC is used when a screening machine based on the desired cut-off is no longer applicable. Optimal selectivity at high task performance for both coarse as well as in the Feingutabtrennung be in the normal operating range from about 3 microns - reached 50 microns.
The development of the classifier led by cylindrical classifying wheels at a constant height to conical wheels with a constant radial velocity. With these wheels, it is possible to produce fine goods with a d97 of 3 microns. With the same cutoff these wheels have a lower pressure loss than corresponding wheels of constant height.
The symmetrical structure, which results from the coherent arrangement of the classifying wheel, causes the rising air from below the classifying wheel on all sides evenly with flows onto regrind. Thus, a local overload of the viewing operation is avoided, and the classifier wheel can be a more uniform release curve. This ultimately leads to lower speeds and a more uniform particle size distribution of the fine material.
Thanks to the hanging arrangement and the hinged head with classifying wheel and storage easy access to classifier wheel and fines outlet is guaranteed. This means that these components can be cleaned simply and easily, and wait.
Proven unicycle design
With the use of only one classifier wheel in one machine has the following advantages:
• symmetrical design for uniform loading and better performance of the classifier wheel
• Only a gap between classifier wheel and fixed housing
• only one bearing and drive
• Easier access for cleaning and maintenance purposes
Special Features
• optimized diffuser: optimized internal flow in terms of material circulation and higher grinding capacity
• Leitapparatt interchangeable suitable for various products to increase efficiency
• Sensors for monitoring the process for high reliability and availability
• Complete system with matched components - Classifier, fans and centrifugal separator at an affordable price
Wear protection
For the processing of very hard and abrasive products are wear-proof machine variants, such as a Vulcollane lining of the machine housing, a ceramic-tipped fine material and separating wheels available in ceramic or hard metal.
Version:
• Pressure resistant up to 10 bar g
• dynamic classifier - different heights and Geometriene
• different number of Sichterblätter obliquely, radially arranged)
• Depending on the application, different materials: treated cast iron, steel, stainless steel, special steel, ceramics), surfaces or polished, wear protection.
• Standard - air purge nozzles, sensors for temperature and vibration of stock
Function
The task of the separated material separately using a feed nozzle on the cover of Sichtermoduls or together with the screening gas. The dispersion of the product takes place at the lower end of the engine via the gas which flows through a coil housing at a high velocity in the classifier. About one in the continuously variable speed classifier wheel separation of the object mass flow is in fine and coarse material. Which grain size is transmitted through the classifier wheel, can be determined by the amount of air and the classifier and modified during operation.
The fine material leaves the machine via the classifying wheel on fine material. Coarse particles are rejected by the classifying wheel, and discharged at the bottom case.
Due to the function of a classifying wheel - flow through from outside to inside - generate classifying wheels, depending on the rotational speed of a corresponding differential pressure. This would result without seal between the rotor and the housing causes the material to be separated occurs through this gap and reach as oversize in the fines.
Benefits:
• Exactly defined maximum particle size (by up to 50 D97 subtleties of d97 <3) using an integrated dynamic air classifier with only one classifier wheel
• classifying wheel with replaceable, mitdrehendem dip tube to the highest subtleties
• Spüllung the gap between classifier wheel and fines outlet chamber for a minimum of coarse grain
• Spüllung the shaft seal of the separator to protect the bearings
• no heating by classification with cooled gas (20 ° C), fitness for temperature sensitive materials
• folding Sichsichterdeckel provides easy access for quick and easy cleaning and maintenance
• Easy to maintain