Paraffin
Granulator model is larger, the degree of automation of the production process is high, adapted to a wide range of raw materials, is very suitable for investment in the use of large centers of enterprises. In order to complete the granulation production, paraffin granulator will generally go through the following process:
1, storage, measurement, mixing. Raw materials are transported to the storage bin by bucket elevator and belt. The number of storage silo, measurement and mixing technology complexity, and the number of components in the product formula. Production, generally with intermittent mixing operation, the formula of the components of the raw materials in the weighing bin weighing, to meet the formula requirements, all added to the intermittent
Mixer mixing, installed in the system with a balancing bin, balancing the bin after the other equipment is a continuous operation. Trace elements can also be added to the mixer. In order to ensure the uniform distribution of particles, the choice of high-strength mixer. Mixed material and return material is elevated by bucket elevator, and then mixed with return material in
Double Shaft Paddle Mixer, the return material is unqualified particles after crushing and screening, the ratio of circulating material to new material is about 35:65.
2.Extrusion. Mixed raw materials are extruded by roller extruder, the principle is to shape the material by extrusion. Mixed material through a vertical screw feeder to join the gap between the two anti-directional rotation of the roller shaft, in the extrusion process, the material pressure gradually increased, when the gap between the two shafts in the smallest position, the material is pressurized by ******, and then gradually reduced until 0.
3, crushing, grading. The plate formed in the roller extruder has to be further crushed and graded to get the required particle size. The crushed raw material is divided into oversized particles, product particles and fine particles on a multi-stage sieve. The fine particles on the lowest screen are recycled into the mixer and then extruded into shape. The oversized particles that are retained in the upper level of the multi-stage screen need to be further crushed. After crushing and then return to the screening.
4.Polishing and finishing. In general, the final product needs one or two steps of polishing and finishing. Irregularly shaped particles are rounded off by a rounding drum to round off the edges and corners. The fines produced in the polishing process are circulated through the sieve (a layer of screen). An anti-caking agent is usually added to the dressing.
In
Case of producing large granules of a single product, the process is simpler due to the elimination of weighing, metering, raw material crushing, mixing, etc., which makes the investment in paraffin granulator further reduced.
