Precautions for installation of flotation machine
Writer： admin Time：2020-11-03 10:19 Browse：℃
In the application of flotation machine equipment in the concentrator, due to the complicated structure of the flotation machine itself, errors often occur in the installation and commissioning process to affect the flotation efficiency of the flotation machine, and then affect the work progress and final separation quality of the entire concentrator. The installation and commissioning process is required to be very rigorous.
So what are the faults during the installation and commissioning of the flotation machine? What are the precautions? Let's learn about it together with the manufacturer of the stator and rotor of the flotation machine
1. Flotation machine maintenance and maintenance
1. The working capacity and working period of the flotation machine are the same as other machines. It is determined by the maintenance and keeping the normal work of the main parts. All working parts must be carefully inspected in 3-4 months, and the new flotation machine Check frequently during the first few months of work.
2. Only skilled personnel can conduct inspections.
3. In order to replace vulnerable parts in time and shorten downtime, a full set of vulnerable parts must be kept in the warehouse. Determine the use date and reserve amount of wearing parts according to specific conditions.
4. It is necessary to ensure certain technical guidance or training for the operator of the flotation machine, and strive to be fully familiar with the machine.
5. In order to avoid dirt and useless materials from being mixed into the oil, there should be a filter when filling the oil, and the oil cap should be sealed when the flotation machine is working.
6. It can be started only after checking before driving and contacting the upper and lower procedures.
7. The driving sequence is: press the upper gate switch, press the start button.
8. After driving, do not touch the rotating part with your hands.
Common failure one: the problem of the stirring mechanism of the flotation machine
As the core part of the flotation machine, the stirring mechanism is directly related to whether the flotation machine can function normally. After some parts of the flotation machine are replaced, sometimes the stirring mechanism is inflexible or even unable to operate, or the motor bearing temperature is too high and heating, abnormal vibration, noise and other problems occur during operation. These problems are usually interrelated. If they are not dealt with in time, it will cause the motor to burn out and the bearings to damage.
Note: When the flotation machine is installed for the first time, the foreign objects in the tank should be taken out first. Rotate the large pulley by hand to confirm the flexibility of its rotation and ensure proper belt tension. After checking whether the belt is rotating in the correct direction (clockwise from the top view), and whether there are any scratches, then formally start. If the above-mentioned problems occur during the operation of the flotation machine, the belt should be removed, the stirring part should be disconnected, and the investigation should be carried out separately.
Common failure 2: Problems with the scraper mechanism of the flotation machine
The flotation machine scraper mechanism is located on both sides of the upper part of the flotation machine tank. The scraper scrapes the concentrate powder on the upper layer of the slurry by rotating, which is a main functional component of the flotation machine. During installation and use, failures such as inflexible rotation of the shaft of the scraper mechanism, shaft breakage, high machine temperature, motor deceleration and oil leakage of the reducer often occur.
Note: Before installation, check the scraper mechanism parts (such as bearings, couplings, etc.) for damage, especially whether the scraper shaft is bent or deformed. Since the head shaft of the scraper mechanism and the reducer are usually together when the flotation machine leaves the factory, the coupling of the head shaft and the reducer should be first removed before installation to ensure the flexible rotation of the scraper shaft.
Common failure three: flotation cell problem
Water leakage is the main manifestation of the failure of the flotation machine tank, which mostly occurs during the installation stage. When installing the flotation machine, there may be varying degrees of water seepage and water leakage on the connecting surface of each tank, especially the anchor position, and sometimes this situation may also occur at the individual welds at the bottom of the tank. Water seepage and water leakage have little effect on the use of the equipment, but it will affect the surrounding environment.
Note: When connecting the surface of the tank, it is necessary to ensure that the rubber is intact and not deformed. At the same time, the flange surface is filled with sealant to strengthen the sealing function. After connecting the joint surfaces well, pre-tighten the bolts. When the tank gap leakage problem occurs, first check whether the bolts are loose and whether the rubber is damaged, try to loosen the pre-tightened bolts, and re-apply sealant to the bolts and rubber or repair intervals.
Common failure 4: Problems with the gate of the flotation machine
The gate has a simple structure and is located at the tail of the flotation machine. Its main function is to adjust the level of the liquid in the tank. In the process of installation and debugging, the ram is used frequently, and it is prone to faults such as damage to the handwheel and running water.
Note: First, check the lubricity of the screw and the integrity of the rubber. If there is no problem, pay special attention to the pre-tightening of the important special screws. Glue the rubber behind the gate, make sure it is firmly bonded and the surface is flat, and install the gate when it is sufficiently dry.
2. Reasonable use of flotation machine equipment
1. The flotation equipment must feed the ore evenly and not exceed the amount.
2. Control the concentration of the slurry and the agent.
3. Adjust the air intake of the flotation machine equipment.
4. There should be no wood chips, rags and other debris in the flotation tank.
5. When the flotation machine is stopped, the ball mill must be stopped for 20 minutes before stopping.
3. Preparation and inspection before operation of flotation machine equipment
1. Whether the screws on the frame, motor base, and main bearing are loose.
2. Whether the tank of the flotation machine is leaking.
3. Whether the scraper and scraper shaft of the flotation machine are in good condition.
4. Whether there are sundries in the equipment tank of the flotation machine.
5. Whether the slurry pipe is unobstructed.
6. Whether there is oil in each lubrication point.
7. The elasticity of the triangle belt should be appropriate.
8. Whether the pulley installation is loose.
9. Whether the triangle belt has broken marks.
10. Whether the switch box knife gate is in good condition.
11. Are all screws and contacts good?
The above are some precautions and common problems during installation and commissioning of the flotation machine introduced by Chaishang Trading Co., Ltd. for you. If you want the flotation machine to operate normally and efficiently, buying a high-quality flotation machine is one aspect. At the same time, you must also pay attention to various details in the installation and commissioning process. It is recommended to find an equipment manufacturer with the overall qualification of the concentrator to purchase the flotation machine and delegate Professionals install and debug the flotation machine, which not only guarantees the high quality of the flotation machine, but also prevents the loss of the flotation machine due to errors in installation and debugging.
