This machine is a novel horizontal intermittent vacuum drying equipment. Wet materials are evaporated through conduction, and a scraper stirrer is equipped to continuously remove the materials on the hot surface and move them inside the container to form a circulating flow. After the water evaporates, it is pumped out by a vacuum pump.
1、The machine adopts large area sandwich heating mode, large heat transfer surface, high thermal efficiency.
2、The machine is set to stir, so that the material forms a continuous circulation state in the cylinder, and further improves the uniformity of the material heating.
3、The machine is set to stir, so that slurry, paste and paste materials can be dried smoothly.
1、Pharmaceutical, food, chemical and other industries to dry the following materials:
2、Suitable for slurry, paste, powder materials;
3、 Heat sensitive materials requiring low temperature drying;
4、Easy oxidation, explosive, strong stimulation, highly toxic materials;
5、Materials requiring recovery of organic solvents.
(1) Strong adaptability: widely used, because the rake vacuum dryer uses jacket heating and high vacuum exhaust, it is adapted to almost all materials with different properties and different states, especially to the drying of explosive, easy oxidation and paste materials.
(2) Good product quality: due to the continuous positive and negative rotation of the rake teeth during the drying process, the dry material is stirred evenly, to avoid the overheating of the material, the water is also easy to escape, and the shell gets a low temperature product. Because of the fine particle size of the product, it can be packed without crushing.
(3) Small steam consumption: Because the vacuum rake dryer uses more steam to pass into the jacket, the use of latent heat to heat the material, the steam consumption per kilogram of finished products is small, generally 1.3-1.8kg of steam.
(4) According to the different characteristics and requirements of the drying material, the sealing system of the dryer can choose two kinds of packing seal and mechanical seal, and the special design ensures the sealing and service life.
(5) Easy to operate: vacuum rake dryer is easy to operate, less manpower and low labor intensity. Environmental hygiene is improved due to reduced material escape loss. The main disadvantages of vacuum rake drying are: complex structure and expensive cost. Because it is intermittent operation, the drying time is long and the yield is low. And because it is difficult to clear the material, Therefore, it is not suitable for the production of frequent replacement varieties. At the same time, in order to ensure the vacuum degree, the vacuum device must be maintained and repaired frequently.
