H acid spray dryer

Release date: November 21, 2015

H acid dryer, H acid drying equipment, H acid dryer, H acid drying equipment, H acid spray dryer. Changzhou Xinke Drying Equipment is the most professional. www.xkdry.com

H acid is 4-amino-5-hydroxy-2,7-naphthalene disulfonic acid. It is an important intermediate for manufacturing azo dyes. H-acid products are often in the form of paste or powder. The disodium salt of Koch acid (1-naphthylamine-3,6,8-trisulfonic acid) and concentrated caustic soda solution are heated and melted in a pressure cooker at about 180-190 ℃, and then the molten material is dissolved in water and acidified to precipitate

Working principle of spray dryer：

The air is filtered and heated, and enters the top air distributor of the dryer. The hot air enters the drying chamber uniformly in a spiral shape. The feed liquid is (rotated) spray by the high speed centrifugal atomizer at the top of the tower body to form extremely fine droplets, which can be dried into finished products in a very short time in parallel with hot air. The finished product is continuously output through the bottom of the drying tower and the cyclone disperser, and the exhaust gas is discharged through the induced draft fan.

Spray drying is the most widely used process in liquid forming and drying industries. It is most suitable for generating powder, granular or massive solid products from solutions, lotion, suspensions and plastic paste liquid raw materials. Therefore, when the particle size distribution, residual moisture content, bulk density, and particle shape of the finished product must meet precise standards. Spray drying is a very ideal process.
The drying speed is fast, and the specific surface area of the material liquid is greatly increased after atomization. In the hot air flow, 95% -98% of the water can be evaporated instantly, and the drying time can be completed in only ten to tens of seconds, which is particularly suitable for drying heat sensitive materials.
The obtained product is spherical particles with uniform particle size, good flowability, good solubility, high purity, and good quality.
Widely applicable, according to the characteristics of the material, it can be dried with hot air or granulated with cold air, with strong adaptability to the material.
Simple and stable operation, convenient control, and easy implementation of automated tasks

H acid dryer, H acid drying equipment, H acid dryer, H acid drying equipment, H acid spray dryer. Changzhou Xinke Drying Equipment is the most professional. www.xkdry.com