Characteristics of spray dryer for Chinese herbal extracts

Spray dryer for Chinese herbal extractProduct Introduction

This machine is suitable for generating powder and granular solid products from solution, lotion, suspension and paste liquid raw materials. Therefore, spray drying is a very ideal process when the particle size distribution, residual moisture content, bulk density and particle shape of the finished product must meet accurate standards. The machine adopts a fully enclosed form, with all components made of stainless steel and equipped with a three-stage purification device. The filtered air meets the requirement of 100000 level. The cylinder and top are equipped with cold wall devices to keep the wall temperature below 80 ℃, and the drying tower is equipped with an air brush sweeping device. After being dried by this machine, the traditional Chinese medicine extract powder will not undergo coking or deterioration, greatly increasing the powder collection rate (over 95%), and will not produce mixing or sticking phenomena.

Characteristics of spray dryer for Chinese herbal extractsProduct Features

Fast drying speed, the 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 only takes a few seconds, making it particularly suitable for drying heat sensitive materials.
The product has good uniformity, fluidity, solubility, high purity, and good quality.
The production process is simplified and the operation control is convenient. For liquids with a moisture content of 40-60% (up to 90% for special materials), they can be dried into powder products in one go without the need for crushing and screening, reducing production processes and improving product purity. The particle size, bulk density, and moisture content of the product can be adjusted within a certain range by changing the operating conditions, making control and management very convenient.Characteristics of spray dryer for Chinese herbal extracts

working principle

After filtering and heating, the air enters the top air distributor of the dryer, and the hot air enters the drying chamber uniformly in a spiral shape. The feed liquid passes through the high-speed centrifugal atomizer at the top of the tower body, and (rotating) spray into extremely fine droplets, which flow in parallel with hot air and can be dried into finished products in a very short time. The finished product is continuously output from the bottom of the drying tower and the cyclone separator, and the exhaust gas is discharged by the fan.