Flotation machine impeller cover installation
Writer： admin Time：2020-08-10 16:29 Browse：℃
What are the precautions during the installation of the impeller cover of the flotation machine? Let's understand with the Rotor stator manufacturer: the matters needing attention during the installation of the flotation machine cover. The flotation machine adopts multi-tank connection. The upper part of the body is equipped with a cover plate structure, and there is a uniform gap between adjacent cover plates. When the cover plate of the flotation machine is not placed horizontally during the installation process, and the maintenance between the cover plates is too large and too small, it will produce The phenomenon of turning over the liquid surface. A steady flow plate is also installed inside the flotation machine to ensure the stability of the slurry material in the flow. When the equipment is used for a long time for timely maintenance, the cover plate and the steady flow plate will be damaged directly. The flow stability of the liquid surface of the ore slurry results in the phenomenon of turning over the liquid surface, which will affect the normal production of the equipment to varying degrees. In order to eliminate the negative impact of liquid surface turning on production, before using the flotation machine to produce, ensure that the equipment components are installed accurately, the cover plates of each tank are placed horizontally, and the gap between the cover plates is uniform, and the equipment is regularly maintained and maintained. Overhaul, replace the damaged cover plate and steady flow plate to ensure that the steady flow plate is intact and firm, and the slurry flows smoothly and evenly, thereby eliminating the phenomenon of turning over the liquid surface and reducing the impact on the quality of the finished product. The flotation machine uses a rotating impeller to The slurry in the ore tank is fully aerated and stirred to make the slurry produce bubbles of different sizes. The granular powdery material in the slurry assists the formation of a mineralized layer on the bubbles during the continuous accumulation and oxidation process. When it is accumulated to a certain extent, the bubble scraper is used Scrape out to obtain finished mineral material. When the flotation machine is used for production, due to the inaccurate installation and debugging of the flotation machine, the slurry surface will be turned over. The slurry surface will fluctuate greatly, and the flow velocity and rise and fall will be affected to a certain extent. At this time, the equipment should be shut down to perform Overhaul and re-commissioning, the production can be restarted only after the installation and debugging of the equipment components meet the production design requirements.
Installation sequence and precautions of impeller cover of flotation machine
Preliminary preparation
(1) Before starting the flotation machine, check whether the bolts and keys are loosened. Whether the impeller lock nut is reliable.
(2) Whether the rotation of the large V-belt wheel and the impeller is flexible and stable.
(3) Check whether each lubrication part is in good condition and whether there is oil leakage.
(4) Whether the circulation of ore liquid is blocked and slurry leaks. (5) Whether the liquid level adjustment mechanism is flexible and reliable.
(6) Whether the motor facilities are complete, flexible and reliable.
(7) Whether the exposed rotating part is a firm and reliable protective cover.
trial run
(1) After assembling the flotation machine, inject clean water for no less than 2 hours of operation test.
(2) During the test, the flotation machine should run smoothly and flexibly, without noise, rubbing, and vibration. The seal of each lubrication part should not leak, the tank should not leak water, the bearing temperature should not exceed 30 degrees, and the highest temperature should not Over 60 degrees.
load operation
(1) The load test should be carried out after the user has normal dry operation.
(2) During the load test, the requirements: the foam scraper works normally, rotates smoothly, the impeller rotates smoothly, flexibly and reliably, the tank body receiving trough and gate, and the intermediate trough must not have slurry flowing out, and the bearing temperature rise should not exceed 35 degrees , The maximum temperature does not exceed 65 degrees.
stop for inspection
Every time the flotation machine stops, the following aspects should be carefully checked. If problems are found, they must be resolved before continuous operation can begin.
(1) Whether the bolts of each part are loose.
(2) Wear of the impeller stator.
(3) The running lubrication of each bearing.
(4) Whether all pipelines are in good condition.
(5) Whether the electrical wiring and facilities are flexible and reliable, and whether there is any leakage.
