Installation steps

1. The equipment is horizontally installed on a flat concrete foundation and fixed with anchor screws (it may not be fixed according to the working conditions).

2. Check if all fastening screws are tightened (the rotor center screw is an M12 left-hand screw).

3. Before use, use a specialized wrench to rotate the rotor and check if it is in contact with the stator and if there is any jamming. If any of the above conditions are found, do not start the machine.

4. Check and connect the power cord (three-phase AC, voltage of 380 volts, body protective grounding), and pay attention to the direction of rotor rotation, which should be consistent with the arrow on the base (clockwise rotation).

5. Connect the cooling water and pay attention to the inlet and outlet signs of the water nozzle.

6. When starting the motor, first jog the switch to check for any noise or vibration. If the situation is abnormal, the machine should be stopped immediately, and the fault should be eliminated before trying to operate again.

7. When cleaning residual materials inside the stator and rotor after work, it should be done while they are in operation. First, rotate the large chuck counterclockwise by no less than 90 ° before cleaning.

8. Adjustment method for clearance between stator and rotor (adjustment should be carried out in operation):

a、 Loosen two handles
b、 Moving the handle drives the large card disc to rotate and adjust the gap. The positioning disc rotates clockwise to reduce the gap and refine the material particle size. The clearance increases when rotating counterclockwise, and the material particle size becomes coarse.

c、 After adjusting the clearance between the stator and rotor, both handles should be tightened simultaneously (clockwise).

d、 According to the particle size and batch requirements of the processed materials, after selecting the optimal setting and rotor clearance, the limit screw can be adjusted to achieve the limit purpose.

9. The butter cup should be regularly oiled.

10. Requirements for processed materials:

a、 Cannot process dry solid materials, only wet processing can be performed.

b、 Before grinding the material, debris should be removed. The particle size of the material should be less than 1mm, and the hardness of the material should not exceed HV309. It is strictly prohibited for hard objects such as iron and crushed stone particles to enter the grinding head to prevent damage to the machine.

11. According to the material processing requirements, one or more grinding can be carried out, and several experiments should be conducted before grinding to ensure appropriate clearance and flow rate.

12. Pay close attention to the grinding process and running time before use. If there is any abnormal situation, the machine should be stopped immediately and disassembled for inspection.

13. Disassembly of stator assembly (please note that stator assemblies one, two, and three cannot be disassembled). First, remove the hopper and the inlet and outlet nozzles, loosen the cap screws, remove the dial, hold the handle, rotate counterclockwise to remove the large chuck, and lift up the grinding head cover to remove the stator assembly.

14. Disassembly of rotor assembly (please note that the first and second stage rotors of the rotor assembly cannot be disassembled). After extracting the stator, remove the discharge port and unscrew the left-hand screw to remove the rotor and impeller. The assembly of the rotor and stator can be carried out in the opposite order as above, and each part should be cleaned thoroughly before assembly. During installation, it is necessary to apply lubricating oil that meets the requirements to each contact surface and threaded part before assembly.

15. After using or not using the colloid mill for a short period of time, the inner cavity should be cleaned well to prevent corrosion, and dried with high-pressure air. When cleaning, choose the appropriate cleaning agent according to different materials, but ensure that the sealing components are not damaged (the sealing component material should be nitrile rubber).

16. When disassembling and assembling, attention should be paid to ensuring that all sealing rings are not damaged, installed incorrectly, or lost.

17. When replacing the pulley according to the required speed, first loosen the nut on the motor cover end, push the motor horizontally towards the grinding head to loosen the triangular belt, lay down the machine, then unscrew the nut on the main shaft and the sturdy screw on the motor shaft, and remove the original pulley. When replacing the required pulley, gently tap it in with a hand hammer, and do not use excessive force to avoid damaging the pulley and damaging the machine's accuracy. After replacement, tighten with nuts and screws, and then gently stand the machine up. After the machine is erected, push the motor horizontally to tighten the V-belt, and then place the cover plate.

install and use

1. Connect the feeding hopper or feeding pipe to the discharge port, then connect the discharge circulation pipe, and finally connect the cooling water (JM-L50A, b without cold water pipe system) and drain pipe.

2. After installing the power starting device (if possible, users can equip it with an ammeter, indicator light, or frequency converter) and connecting it to the power supply, special attention should be paid to the direction of the startup operation to determine whether the motor is rotating in the normal direction, or whether the direction is consistent with the 'red warning sign' rotation direction arrow on the colloid mill from the feeding pipe diameter. Do not idle (lack of liquid in the cavity) and reverse.

3. At the time of leaving the factory, the device's discharge port block is already equipped with adjusted limit screws, and the gap between the grinding discs is at the appropriate processing fineness spacing. To adjust the clearance of the grinding disc, first loosen the upper limit screw of the discharge port block. Without turning on the machine, loosen the two handles on the adjustment disc (scale) counterclockwise, and then turn the adjustment disc clockwise. When there is a slight resistance when turning the adjustment disc, stop immediately. At this time, the reading of the scale on the adjustment disc aligned with the pointer on the body determines that the clearance between the dynamic and static grinding discs is' 0 '. But remember that the reading number on the dial ring is not 0 degrees, and the distance between the grinding discs is' 0 '. Then, rotate the disc counterclockwise and adjust it a few times to make the gap between the dynamic and static grinding discs slightly larger than 0. The scale of the adjustment dial is 0.01mm for every large advance and retreat. Generally, while meeting the fineness requirements of the processed materials, it is advisable to maintain a certain distance between the grinding discs, lock the adjusting disc with the handle, and adjust the upper limit screw of the feeding port block to ensure the normal operation of the machine.

4. After connecting the cooling water, inject about 1-2Kg of liquid material or other liquid related to the processing material, and keep the wet material in a reflux state through the circulation pipe. Then the colloid mill can be started and immediately fed into the colloid mill for processing and production after normal operation, while the idle colloid mill can also be exempted from this requirement.

5. Before shutting down, add or leave an appropriate amount of water or other liquid related to the processing material in the feeding hopper, and keep the wet material in a reflux state through the circulation pipe. When starting up, it is also necessary to maintain a certain amount of wet material in the hopper that can be refluxed and immediately put in the material, otherwise it will damage the hard combination seal and even cause leakage and burning of the motor.

6. Pay attention to the motor load when processing materials, and reduce feeding if overload is found.

7. During the operation of the colloid mill, the discharge valve must not be closed to prevent leakage caused by excessive pressure inside the grinding chamber.

8. Colloidal mill belongs to high-precision machinery, with small disc clearance and fast rotation speed. Operators should strictly abide by their posts, operate according to regulations, promptly stop the machine if any faults are found, and resume production after troubleshooting.

9. After using the colloid mill, the machine should be disinfected and the inside of the body should be cleaned to prevent materials from remaining in the body, in order to avoid damage to the machine caused by hard mechanical adhesion.

Special precautions

Hard substances such as quartz sand, broken glass, and metal shavings are not allowed to be mixed in the processed materials, and it is strictly prohibited to enter the colloid mill for processing and production.

Before and after starting, shutting down, and cleaning the colloid mill, it is necessary to leave water or liquid materials in the body, and it is forbidden to idle or reverse. Otherwise, improper operation may seriously damage hard mechanical components or static grinding discs, dynamic grinding discs, or cause leakage and motor burnout.

The improvement of the product without affecting its basic structure and performance will not be notified separately.

maintenance

(1) 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.

(2) 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.

(3) Unscrew the water inlet plug of the colloid mill pump body and inject water (or slurry).

(4) Close the gate valve, outlet pressure gauge, and inlet vacuum gauge of the water outlet pipeline.

(5) Tap the motor and try to see if the motor direction is correct.

(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) 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 higher efficiency point, in order to achieve significant energy-saving effects.

(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) If any abnormal sound is found in the colloid mill, it should be stopped immediately to check the cause.

(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 operation, the colloid mill needs to change the lubricating oil after 100 hours, and then every 500 hours thereafter.

(12) Regularly adjust the packing gland to ensure normal dripping inside the packing chamber (preferably in droplets).

(13) Regularly check the wear of the shaft sleeve, and replace it promptly if there is significant wear.

(14) 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.

(15) 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.