Brief Analysis of the Operating Procedures of the Boiling
Granulator
Operating procedures and daily maintenance of boiling dryer
Huanteng granulator is mainly used for mixing, granulating, drying,
particle "fixed spray" coating and other operations of powder
materials in the pharmaceutical, food, chemical and other
industries.
How to operate the fluidized bed granulator correctly
1. Preparation work before production 1.1 Check whether the tools
used in production are complete and clean, and whether the
components of the fluidized bed granulator are intact.
1.2 Check whether the steam and compressed air are supplied
normally.
1.3 Check whether the materials fed are complete, whether the
quantity, product name, and batch number are consistent with the
production instructions, and whether the appearance is qualified.
2. Operation
2.1 Turn on the power supply of the fluidized bed granulator
control box, open the compressed air valve, and adjust the gas
pressure (0.5-0.6 MPa).
2.2 Set the air inlet temperature as needed (first press the
3-second setting key, then press the plus and minus keys to the
required temperature, and finally press the 3-second setting key to
set the temperature).
2.3 Put the prepared granules into the hopper, push the hopper into
the box, and push the inflation switch after the hopper is in
place. The upper and lower air bags enter 0.1-0.15 MPa compressed
air to make the upper and lower hoppers in a sealed state.
2.4 Open the manual stop valve for heating gas in and out.
2.5 Press the start button of the induced draft fan. After the fan
starts, press the start mixing button to start mixing and drying.
2.6 The air inlet temperature slowly rises to the set temperature
through the automatic control system. When the air outlet
temperature rises to about 60℃, the material is about to dry.
2.7 If the particles are uneven during the drying process, it is
necessary to stop the drying, pull out the hopper to turn the
particles, and then push them in for drying.
2.8 Take samples to determine whether the moisture content of the
particles meets the requirements.
2.9 After the drying degree of the particles meets the
requirements, pull out the cool air door switch and cool the
materials with clean cold air for several minutes.
2.10 Press the fan stop button to stop the fan and mixing at the
same time (electrical interlock), push and pull the capture bag
lifting cylinder several times, and shake the accumulated materials
on the bag into the hopper.
2.11 Pull out the inflation switch, and wait for the airbag sealing
ring to deflate and recover before pulling out the hopper.
2. How to maintain and service the fluidized bed dryer
1. Daily maintenance of fluidized bed dryer
1.1 Before each operation, the operator of the fluidized bed dryer
should check whether the steam valve, compressed air and various
range meters are normal.
1.2 Check whether the upper and lower airbag seals are raised and
whether the flat head screws are loose to avoid damage when the
material cart is pushed in.
1.3 Check whether the blades of the hopper are too tight. The
blades are too tight and the resistance of the material will
increase the transmission load of the mixing motor, causing the
transmission bump to break or the motor to burn.
1.4 Check whether the air pressure of the upper and lower airbag
seals is below 0.1-0.15mpa. Too high air pressure can easily cause
the seal to burst. Too low air pressure can not play a sealing role
and cause powder leakage, affecting production efficiency and
drying quality.
1.5 Check whether the compressed air pressure is too high:
1.5.1 It is easy to cause the impact of the hot and cold air door
cylinders to be too large, causing the air door joint to break or
the sealant to be damaged, and air leakage to affect the drying
effect.
1.5.2 The thrust of the cylinder of the bag cabinet is too large,
and the push rod is easily bent.
2. Regular maintenance of the boiling dryer
2.1 Regularly clean the medium-efficiency filter bag once a month,
enter from the air outlet of the jubilant machine, loosen the
structural screws, take out the net bag, soak it in detergent for
30 minutes, then rinse and dry it with clean water.
2.2 Regularly clean and lubricate the gearbox in the mixing
equipment.
2.3 Regularly add lubricating oil to the transmission gear of the
material car and fill in the equipment lubrication record.
