Ore quantity of single tank testing machine

Single cell flotation machine is suitable for the separation of non-ferrous metals, but also can be used for the separation of non-metallic such as: coal, talc. The single slot flotation machine is driven by the trigonometric generation of the motor to drive the impeller to rotate, resulting in centrifugal action to form negative pressure. On the one hand, the sufficient air is mixed with the slurry, and the slurry is mixed with the medicine on the one hand, and the foam is refined at the same time, so that the mineral adheres to the foam and floats to the slurry surface to form a mineralized foam. Adjust the height of the gate and control the liquid level, so that the useful foam is scraped out of the scraper..
single slot flotation machine is mainly used for the selection of non-ferrous metals such as copper, zinc, lead, nickel, gold and so on. It can also be used for roughing and selection of ferrous metals and non-metals.
after the slime and reagent are fully mixed, they are fed into the bottom of the first chamber of the single cell flotation machine. After the impeller rotates, a negative pressure is formed in the wheel cavity, which makes the pulp under the tank and in the tank enter the mixing area from the lower suction and upper suction of the impeller respectively, and also makes the air enter the mixing area along the air guide sleeve, where the pulp, air and reagent are mixed. Under the action of centrifugal force of impeller, the mixed pulp enters the mineralized area, the air forms bubbles and smashed, and is fully contacted with the coal particles, forming a mineralized bubble. Under the action of the stator and turbulent plate, it distributes evenly in the cross section of the tank, and moves upward into the separation area, and the rich aggregate forms a foam layer, which is discharged by the scraping bubble mechanism to form a clean coal foam. The unmineralized coal particles on the bottom of the tank will be mixed, mineralized and separated again through the circulation hole and upper suction port. Part of the pulp which is not inhaled by the impeller at the bottom of the cell enters the bottom of the second chamber through the middling box buried in the pulp. After completing the whole process of the first chamber, it enters the third chamber. The single cell flotation machine goes through this cycle, and the pulp enters the tailing box after passing through the last chamber to discharge the final tailings

Common faults: poor sensitivity of dial pointer, midway stop after unloading, or frequent change of zero position. There are many reasons for this phenomenon
1. There is too much st and rust on the pulley and its track on the gear bar. At this time need to remove clean, and then add a little watch oil
2. The pointer shaft is dirty and should be cleaned
3. There is contact between the toothed bar pressing plate and the toothed bar, so it should be loosened
4. The oil return condition of the buffer is poor, so it should be adjusted or cleaned The belt on the force measuring piston falls off or is too loose (making the piston unable to run at a constant speed)
6. If the friction force of the force measuring piston increases or gets stuck in the oil cylinder, apply chrome oxide grinding paste to grind it until it is normal
7. There are obstacles in the process of lifting the penlum, or the penlum shaft is too dirty or rusty, which makes the pointer return to zero and change greatly
common faults: when loading, sometimes the maximum load can not be loaded or unloaded ring loading. This kind of fault often occurs, and there are many reasons
1. The viscosity of the oil used is too low (oil always flows out of the oil return pipe of the oil delivery valve ring loading). Generally, mineral oil with medium viscosity is used, without water, acid and other mixture, which does not decompose at room temperature and has constant consistency. If necessary, it can be measured with viscometer. If the oil is not used properly, the valve and oil circuit will be blocked, and vibration or pipeline leakage may be caused. It is better to use oil according to the instruction
2. There is serious oil leakage in the oil pressure system, and the oil leakage in the oil circuit system generally occurs at the connection of buffer valve, return valve, delivery valve, oil pump and pipeline. After adding gasket, tighten the screw. If the sealing gasket is broken, it must be disassembled here and replaced with a new one. The gasket shall be made of red copper or aluminum alloy
3. When the load reaches a certain level, the oil return pipe of the oil delivery valve has "poof" and "poof" sound, and there is little oil output and bubbles. When the load can not rise again, there is no oil flowing out of the oil return pipe. Troubleshooting: add oil to the oil tank of the testing machine until the oil level reaches half of the sight glass
4. The oil collector of the oil pump is not pressed on the pump body. In this way, each loading can only reach a certain load, and the load can not rise again, and there is no oil flowing out of the oil return pipe of the oil delivery valve. Troubleshooting: use a wrench to tighten the fixed screw at the rear end of the oil pump. If there is still a problem, remove the oil collector and add a gasket between the oil collector and the pump body
5. The clearance between working piston and oil cylinder is too large, and there is too much oil spill in the clearance, which can be seen from the oil spill outlet. The method is to thicken the viscosity of the oil. If the problem can not be solved, the piston and oil cylinder should be replaced in the factory after precise measurement
6. The clearance between the force measuring piston and the force measuring cylinder is large, which can be seen from the lower part of the force measuring cylinder when the tonnage is high. Normally, there is no oil drop or intermittent oil drop when the tonnage is high. If the oil flows out in a linear shape, it means that the force measuring piston should be replaced. When observing the oil leakage, pay attention to the difference between the joint oil leakage and the cylinder plug oil leakage, and do not make a wrong judgment e to wrong looking
7. The piston and piston sleeve in the oil delivery valve are damaged or the spring becomes soft. In this way, the load that can be achieved by each loading is basically unchanged, and the noise of the oil delivery valve is large. When the load can no longer rise, the oil output of the oil return pipe of the oil delivery valve is large. Take out and grind the piston and piston sleeve. If the damage is serious, replace the spring
8. The pressure stabilizing spring stiffness of the oil delivery valve is low or the cavity of the throttle needle is blocked. Main performance: each load can only reach a certain load, when the load can not rise again, the oil output of oil return pipe is large. Troubleshooting: replace the pressure spring with appropriate stiffness or clean the dirt
9. The clearance between the damping needle and the damping hole of the oil delivery valve is too small. Main performance: each load can only reach a certain load, when the load can no longer rise, the oil output of oil return pipe of oil delivery valve is large. Exclusion method: take out the damping needle, and file part of it with a file along the axial direction of the damping needle
10. The belt driving the oil pump is loose and has the phenomenon of slipping. After loading to a certain load, it can not rise again, no oil flows out of the oil return pipe of the oil delivery valve, and the oil pump has no working sound. Troubleshooting: loosen the motor fixing screw, adjust the position, make the belt taut, and then tighten the motor fixing screw. If the belt deformation is too large, it must be replaced with a new belt
11. The plunger of oil pump is corroded. Main performance: in the loading process, the oil output of oil return pipe of oil delivery valve is discontinuous or fluctuates. When a certain load cannot be increased, no oil will flow out of the oil return pipe. Troubleshooting: take out the plunger and re polish it
12. When the maximum load of the testing machine with safety valve exceeds 3% ~ 5%, it can be opened automatically to ensure that the testing machine will not be damaged e to overload. When the safety valve is not adjusted properly, or the valve tip and hole are not tightly closed, the pressure will not be high. The adjustment method is to dismantle the adjusting screw of the safety valve, check the damage of the parts, and replace them. If the overload is too much, screw the screw downward, And vice versa
common faults: ring tensile test, the fracture always breaks on both sides. The reason for this phenomenon should first consider whether the main part of the testing machine is installed vertically or not. If this reason is eliminated, it can be eliminated from the following three aspects
1. If the jaw is not in the right position, the specimen should be clamped symmetrically according to the requirements
2. The poor quality of the jaw and tooth damage not only affect the different center of the jaw, but also make the sample slip ring the test, making it difficult to identify the yield point. The jaw should be replaced at this time
3. The adjustment of the lifting guide wheel is not correct, so that the upper and lower jaws are not concentric. A test rod shall be processed. After the upper and lower jaws are tightened, measure with a dial indicator based on two force columns until the adjustment is qualified