I. Enzyme Preparation Pressure Spray Dryer--Overview

The spray drying system for enzyme preparations is specially developed for the enzyme preparation industry. Enzyme preparations include amylase, saccharification enzyme, protease, cellulase, isoamylase, isomerase, phytase, xylanase and the like. Enzyme preparation products require a large particle size to improve the fluidity of the product. At the same time, the product particles are required to have a hollow spherical shape, which can improve the quick solubility of the product.

The enzyme preparation itself is a type of protein, and any factor affecting the protein affects the activity of the enzyme preparation. The activity of the enzyme preparation increases with increasing temperature, but when the temperature is high to some extent, the enzyme is denatured and loses activity. The optimum temperature for general enzyme activity is 30 to 45 ° C. When the temperature exceeds 60 ° C, the enzyme denatures and loses activity. The enzyme preparation is a heat sensitive material, so the temperature of the material itself during the drying process needs to be strictly controlled during the spray drying process. Enzyme spray dryers must be added to the air curtain or air sweep system to prevent deactivation of the material wall. Zhiheng Dry Engineer designed a spray drying system specifically for the characteristics of the enzyme preparation. The lower inlet air temperature, lower exhaust air temperature, enlarged tower diameter, etc. all provide customers with lower deactivation rate. Provided help.

The control system is controlled by PLC+ touch screen program with recording and storage functions. The inlet air temperature, exhaust air temperature, drying chamber pressure, atomizer operating frequency, and feed pump operating frequency can be monitored and recorded in real time, and the data curve and list can be produced for later query. With alarm function. The on-site control is operated by human-machine interface and has three levels of user management (operators, managers, equipment management personnel).

The control system is controlled by Siemens PLC. All the temperature signals, pressure signals and frequency signals of the site are entered into the PLC system, so that the PLC can more accurately control the production process parameters. Temperature control: The inlet air temperature is controlled by fuzzy technology to ensure the control accuracy of the inlet air parameters; the outlet air temperature control: the interaction between the feed pump and the outlet air temperature is used to accurately control the outlet air temperature, and the outlet air temperature is automatically matched. The amount of material is guaranteed to ensure the quality of the product and the final moisture of the product. The whole machine control adopts program interlocking to ensure the safe operation of the equipment.