In order to make the flotation machine operate normally and efficiently, in addition to normal operation and maintenance, it must be timely repaired, and the faults occurring in the operation of the equipment should be handled and eliminated in time. The common faults and treatment methods of the mechanical agitation flotation machine in operation are shown in the table.
Table flotation machine common faults and treatment methods
| Fault phenomenon | cause of issue | Approach |
| Partial liquid surface | 1. The impeller and the cover are not installed properly. The axial gap is large on one side, the side is small, and the side with large gap is turned over. 2. The cover is partially damaged by the impeller 3. The steady flow plate is broken. 4. The pipe joint is loose. | 1. Adjust the gap 2. Replace 3. Repair 4. Fasten |
| Insufficient inflation or sinking | 1. The impeller cover is seriously worn, the clearance is too large 2. The impeller cover installation clearance is large 3. The motor speed is not enough 4. The inflation tube is blocked or the nozzle valve is closed 5. The slurry circulation is too large or too small | 1. Replace 2. Re-adjust 3. Check motor speed 4. Clean or open 5. Close small or open circulation hole |
| Insufficient suction or running water in front groove | 1. The feed pipe is worn and leaked. 2. The feed pipe is too large, the feed amount is small. 3. The middle chamber is blocked by coarse sand. 4. The contact between the mine pipe and the groove wall is not good (the gasket is damaged and the screw is loose). | 1. Replacement 2. Partial blockage of the mine pipe 3. Water pipe flushing 4. Repair |
| The intermediate chamber or the discharge bin does not discharge the slurry. | 1. The groove wall wears out 2. The pipe is blocked or loosened 3. The impeller cover is damaged | 1. Repair 2. Overhaul 3. Replacement |
| Liquid level can't be adjusted | 1. The gate screw is tripped, the bottom of the gate is perforated or rusted. 2. The gate is over-adjusted (reverse misalignment) | 1. Replacement and repair 2. Gate reset |
| The suction groove has a large amount of scraping, and the DC slot cannot be scraped out. | Mostly because the DC slot does not open the circulation hole gate | turn on |
| Concentrate trough | If the dose is appropriate, the pipe is blocked. | dredge |
| The spindle is not up and down properly. | 1. Ball bearing damage 2. The impeller mass is unbalanced, the spindle swings, and the impeller cover collides 3. The cover is damaged 4. The foreign object falls into the slot 5. The spindle top cover is loose 6. The impeller cover gap is too small | 1. Replacement 2. Inspection 3. Replacement 4. Removal 5. Fastening 6. Retuning |
| Bearing heating | 1. Bearing damage, ball rupture 2. Lack of lubricating oil or poor oil quality | 1. Replace 2. Add, change oil |
| Spindle pulley swing and bracket swing | 1. The pulley is not installed properly. 2. The bracket bolt is loose. 3. The seat plate is not padded. 4. The impeller is uneven in mass. | 1. Reloading, adjusting 2. Fastening 3. Padding 4. Replacement |
| The motor is hot and the phase current is increased. | 1. Excessive sand accumulation in the tank 2. Shaft damage 3. Cover plate and loosening of the mine pipe 4. Wear of the mine pipe, excessive circulation 5. Air cylinder wear through, excessive circulation 6. Motor single phase Running | 1. Dosing, sanding 2. Replacement 3. Tightening 4. Replacement 5. Replacement 6. Overhaul |
AH(R) Series Heavy Duty Slurry Pumps are cantilevered horizontal, centrifugal slurry pumps .They adopt the vertical axial middle open type and double casing structure. They are designed for handling high abrasive, high-density slurries in alumina, copper, electric utilities, phosphate, coal, building products, Iron ore, lead & zinc and other industrial departments etc. The pumps of this type may also be installed in multistage or/and in series.
Product Feature
1.The flow-passing parts is made of wear-resisting metal or rubber liner, has the good wear-resisting, the corrosion resistance and the high reliability.
2. Large diameter impeller and low running speed design, has higher service life and lower running cost.
3. High capacity bearing design, using grease or oil lubrication to adapt to different operating conditions.
4. The clearance between the impeller and the cover plate could be adjusted to ensure the pump to operate at high efficiency point.
5. The shaft seal adopts packing seal, expeller drive seal and mechanical seal, which adapts to different working conditions.
6. The discharge branch can be positioned at intervals of 45 degree by request and oriented to any eight positions to suit installation and application.
AH(R) Series Heavy Duty Slurry Pumps
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Shijiazhuang Soarho Machinary Co.,Ltd , https://www.xhslurrypump.com