Colloid mill?The basic principle is that fluid or semi fluid materials are subjected to strong shear forces, friction forces, and high-frequency vibrations through high-speed relative linkage between fixed and moving teeth, effectively crushed, emulsified, homogenized, and warmed, thereby obtaining satisfactory finely processed products. In the production of soft capsules, it is used for homogenizing and mixing ingredients, grinding and refining materials, or for color matching and mixing in sols.
Below, the editor will briefly introduce the daily maintenance precautions for colloid mills, as follows:
(1) Try to control the flow rate and head of the colloid mill within the range indicated on the label as much as possible to ensure that the colloid mill operates at a high efficiency point, in order to achieve significant energy-saving effects.
(2) Close the gate valve, outlet pressure gauge, and inlet vacuum gauge of the water outlet pipeline.
(3) Tap the motor and try to see if the motor direction is correct.
(4) If any abnormal sound is found in the colloid mill, it should be stopped immediately to check the cause.
(5) Add bearing lubricating oil into the bearing body, and observe that the oil level is at the centerline of the oil gauge. The lubricating oil should be replaced or replenished in a timely manner.
(6) Start the motor, when the colloid mill is running normally, open the outlet pressure gauge and inlet vacuum pump to see if they display appropriate pressure, gradually open the gate valve, and check the motor load condition at the same time.
(7) Check if there is any looseness in the pipeline and joint of the colloid mill. Rotate the colloid mill by hand to see if it is flexible.
(8) During the operation of the colloid mill, the bearing temperature should not exceed 35C of the ambient temperature, and the high temperature should not exceed 80C.
(9) Regularly adjust the packing gland to ensure normal dripping inside the packing chamber (preferably in droplets).
(10) When the colloid mill needs to be stopped, first close the gate valve and pressure gauge, and then stop the motor.
(11) Within the first month of use, the colloid mill needs to change the lubricating oil after 100 hours, and then every 500 hours thereafter.
(12) Unscrew the water inlet plug of the colloid mill pump body and inject water (or slurry).
(13) If the colloid mill is not used for a long time, the pump should be completely disassembled, wiped dry, and the rotating parts and joints should be coated with grease and stored properly.
(14) Regularly check the wear of the shaft sleeve, and replace it promptly if there is significant wear.
(15) When using the colloid mill in the cold winter season, after parking, it is necessary to unscrew the drain plug at the bottom of the pump body to drain the medium completely. Prevent frost cracking.