Youyan Powder New Materials (Beijing) Co., LTD., the parent company of Beijing Non-ferrous Metals Research Institute
Copper powder A metal with a red luster that is harmful to the environment and can cause slight pollution to water, soil and atmosphere. Selected ZDG vibrating fluidized bed dryer, this machine advanced design, easy to operate, the selection of a fully sealed structure, effectively prevent the cross infection between the material and the air.
1、Copper powder health hazards: inhalation of copper smoke can cause metal smoke fever. The patient had chills, elevated body temperature, and respiratory irritation. Workers exposed to copper dust for a long time often have contact dermatitis and nasal and eye irritation, causing sore throat, cough, nasal congestion, rhinitis, etc., and even causing nasal septum perforation. Long-term inhalation can cause hyperplasia of lung fiber tissue.
2、Copper powder: Molecular formula Cu, molecular weight 63.55, metal with red luster, has a certain harm to the environment, and can cause slight pollution to water, soil and atmosphere. Its powder can burn at high temperature and open flame, and the dust is irritating.
3、Metal powder refers to a group of metal particles with a size less than 1mm. Including single metal powder, alloy powder and some refractory compound powder with metal properties, it is the main raw material of powder metallurgy. Metal powder can be used as raw material for powder metallurgy products, and can also be directly applied.
The ZDG series vibrating fluidized bed dryer will enter the material from the feed port into the machine, under the action of vibration motor or other ways to provide vibration force, jump forward on the air distribution board, at the same time, the air is filtered, heated to a certain temperature, through the tuyere into the dryer under the dual action of vibration force and the air flow through the air distribution board. It is in suspension state and in contact with the hot air flow, and there is a fierce turbulence between the material particles and the hot medium, which strengthens the heat and mass transfer process. The dried product is discharged from the discharge port, and the evaporated water and waste gas are recovered by the cyclone separator and discharged into the atmosphere. The lower bed body provides a stable air chamber with a certain pressure for the bed. Adjust the induced draft fan, so that the upper part of the bed material in the upper box to maintain a small negative pressure, maintain a good dry environment and prevent dust leakage.
1, the material is heated evenly, the heat exchange is sufficient, the drying strength is high, and the energy saving is about 30% compared with the ordinary dryer. Vibration source is driven by vibration motor, running balance, easy maintenance, low noise, long life. Steady flow, no dead Angle and blow through phenomenon. It has little damage to the surface of the material, and can be used for fragile drying, and does not affect the working effect when the material particles are irregular.
2, the use of fully closed structure, effectively prevent the cross pollution between the material and the air, the working environment is clean. Good adjustability, wide adaptation surface, material layer thickness, moving speed in the machine and amplitude changes can be stepless adjustment.
3, due to the application of vibration, the minimum fluidizing gas speed can be reduced, which can significantly reduce the air demand, and then reduce the dust layer entailing, supporting heat sources, fans, cyclone separators, etc., can also be reduced accordingly, complete sets of equipment reduced, energy saving effect is obvious. The in-machine residence time can be easily changed by adjusting vibration parameters. The operation of the piston flow reduces the requirements of material particle size uniformity and regularity, and it is easy to obtain uniform dry products.
