I. Material Overview

　　Nickel sulfate is available in anhydrous, hexahydrate and heptahydrate. Commodity mostly hexahydrate, there are two variants of α-type and β-type, the former is blue tetragonal crystals, the latter is green monoclinic crystals. When heated to 103°C, it loses six water of crystallization. Easily soluble in water, slightly soluble in ethanol, methanol, its aqueous solution is acidic, slightly soluble in acid, ammonia, and toxic. Mainly used in electroplating industry, pharmaceutical industry, inorganic industry, printing and dyeing industry.

II, Nickel sulfate special vibration fluidized bed dryer overview

　　Nickel sulfate has strong acidity and corrosiveness, our company for this feature, in the equipment manufacturing upgrade and improvement, vibration fluidized bed of the upper and lower box and the inner surface wall are 3mm glass fiber reinforced plastic all attached, vibration plate is made of special nickel plate punching duck tongue holes, exhaust emissions are all made of high temperature resistant and corrosion resistant glass fiber reinforced plastic materials. The support frame and support tube are also made of carbon steel Teflon material. In order to make the emission achieve good effect, the bag filter bag chooses special material which is extremely acid-resistant, even the induced draft fan frequency regulation is also made of FRP. This process is a good solution to the material drying process encountered in the high temperature, high corrosion problems.

III, Nickel sulfate special vibration fluidized bed dryer principle

　　Materials from the feed port into the machine, in the vibration motor or other ways to provide the excitation force, under the action of the air distribution plate jump forward, while the air after filtration, is heated to a certain temperature, from the air into the dryer under the wind chamber, the material in the vibration force and the air distribution plate by the air under the dual role of the hot air flow, was suspended in a state of contact with the hot air flow, the material particles and the heat medium between the intense turbulence, so that the process of heat and mass transfer to the dryer, the material is not only the material, it is also the material. So that the heat and mass transfer process can be strengthened, the dried product is discharged from the discharge port, the evaporated water and exhaust gas through the cyclone separator to recover the dust, and then discharged into the atmosphere. The lower bed body provides a stable air chamber with 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 slightly negative pressure, to maintain a good drying environment and prevent the dust leakage.

IV, Nickel sulfate special vibration fluidized bed dryer features

1, the material is heated uniformly, heat exchange is sufficient, high drying intensity, energy saving of about 30% than the ordinary dryer. The vibration source is driven by vibration motor, balanced operation, easy maintenance, low noise, long life. Stable fluidization, no dead angle and blowing through phenomenon. Small damage to the surface of the material, can be used for fragile drying, the material particles are irregular does not affect the working effect.

2, the use of fully closed structure, effectively preventing cross-pollution between the material and air, clean operating environment. Good adjustability, wide adaptability, material layer thickness and moving speed in the machine and amplitude changes can be realized stepless adjustment.

3, due to the application of vibration, can make the minimum fluidization of air velocity reduction, thus can significantly reduce the air demand, and thus reduce the dust layer entrainment, supporting heat source, fan, cyclone separator, etc. can be correspondingly reduced specifications, complete sets of equipment to reduce energy-saving effect is obvious. Can easily rely on adjusting vibration parameters to change the retention time in the machine. Its piston flow operation reduces the material particle size uniformity and regularity requirements, easy to obtain uniform dry products.