Spraying Dryer

Detailed Product Description

LPG series high-speed centrifugal spraying dryer The principle of this kind of spraying drying atomizer is that liquid materials are
thrown out and atomized by centrifugal force from the edge of the dish that isrotating at high speed (linear speed at 90 to 160m/s).The whole system adoptssuch a style to dry, that is, hot air medium open circulation plus materials flowing
concurrently.Features:1) Short drying time due to large surface area of droplet groups2) Power has small granule (80 to 200 meshes) and good flowability3) Large flexibility of operation4) Heat utilization rate is higher than that of other spraying when air temperature
is over 150^oC5) No high requirements for factory buildings YPG series pressurized spraying and granulation dryerThe principle of its atomization is that liquid which gets high pressure (1 - 10MPa)
from high-pressure pump transfers pressure into kinetic energy when it passes through
the spray nozzle, and is sprayed out at high speed to become droplets.Advantages:1) Mass atomization power2) Easy operation, maintenance and replacement3) Larger granularitiesDisadvantages:1) High pressure pump is needed2) Nozzle is easily blocked up3) Liquid materials should be filtered strictly4) Large wearing of nozzles5) Not easy to atomize for high viscosity liquid: instant milk powder, cocoa powder, coffee granule disperse dyestuff, alkaline dyestuff, propyl methanol, ovoflavin VB2, medicinal yeast Sterilized spraying dryer From the view of sterilized spraying drying production both at home and abroad and
experiences of our factory to produce sterilized spraying dryer these years, we thought
sterilized materials have good properties, higher heat sensitive temperatureand weak humid-absorbing performance. We make spraying drying test on tenodd sterilized materials such as sodium phosphonomycin and streptomycin. We found
that when inlet air is at temperature of 160 - 260^oC, only shakingthe wall of the tower, no materials will be stuck on the wall and in air pipe.Good drying condition and sterilization of drying system are something important.
GMP and FDA standards clearly defined that the surface of equipment which contacts
medicine or its content should be smooth, plain, easy cleaned and sterilized, corrosion
resistant, no reaction or adsorption will occur and no penetration or crackon surface in order to reduce dust or microbe collection and bear repeatuse of cleaner. So the materials of equipment should be 316 or carbon steel FDA recommended (1 Cr18Ni9Ti
is confined as it can become corrosive with CL-ion and 304 is used in notimportant case). Its surface should be polished and dimmed. Non-metal materialsare chosen from PTFE, silica rubber of nylon. 300^oC high temperatureonline sterilization is adopted and all equipment and pipes have fast-open mouths
for dismounting and cleaning. The clean degree of the system should be hundredlevel.