Learn - Feb. 03, 2021
The name of slurry pump is a kind of centrifugal pump from the perspective of conveying medium, conceptually speaking, it refers to a kind of machinery that increases the energy of solid and liquid mixed medium by the action of centrifugal force (rotation of pump impeller), converting electric energy into kinetic energy and potential energy of the medium. Mainly used in mining, power plants, dredging, metallurgy, chemical industry, building materials and petroleum and other industrial fields. Slurry pump improper use of what problems are likely to cause.Slurry pump improper use of which problems are likely to cause, the next slurry pump supplier will explain how to make slurry pump normal operation.
1.Slurry pump long-term use resulting in the cooler pipe wall surface scaling, so that the heat transfer is poor; cooling water is small or not added cooling water. Therefore, we must often check the bearing cooling water pressure and the flow rate is appropriate, general slurry pump cooling water pressure of 0.05 ~ 0.2MPa, cooling water flow rate of 1 ~ 3m3 / h, timely replacement of scaled cooler, in the pump before starting open cooling water will be adjusted to the pressure of the specified value, regularly check the bearing temperature rise (for 35 ℃), high temperature shall not be greater than 75 ℃.
2.Slurry pump in the process of use due to packing wear resulting in seal failure, slurry leakage along with the shaft seal, slurry instantly filled bracket and rear pump shell coupling of the semicircular positioning hole at the curved surface, too late to discharge from the discharge port of the slurry through the water retaining disk at the seal seeped into the oil pool, resulting in bearing damage. In the daily maintenance should pay attention to the regular detection of shaft seal water leakage, when the leakage increases, should adjust the packing gland bolts, timely replacement of packing and failure of the O-ring seal, to prevent leakage of slurry along the shaft from the water-retaining disk seal seepage into the bracket oil pool.
3.Lubricating oil is not clean, resulting in bearing friction, wear, heating, vibration and other problems, can reduce friction and wear by lubricating various parts of the bearing, to regularly check the quality of lubricating oil in order to enter the dust or oil aging deterioration. A lubricating oil should be strictly in accordance with the pump manual to adjust the amount of oil, should not be too much or too little, if too much oil will not be able to take away most of the friction heat inside the bearing, can not play an effective role in heat dissipation, but also make the bearing temperature rise higher; if less oil, will cause the bearing oil film rupture and dry friction, burn the bearing.
ZZ slurry pump is a research and development achievement for decades. In 2009, it won the China Zigong Science and Technology Progress Award. The efficient design of solid-liquid two-phase flow is optimized. There are a variety of seal types, transfer methods and anti-wear materials for different applications. Suitable for pumping corrosive or abrasive slurries containing solids such as concentrates, tailings, coal ash, cinders, slurries, sediments... they can work in series if required.
Axial flow pumps are centrifugal pumps that allow the pump to move axially through the impeller. They offer high flow rates and low heads, but some models can be adapted to operate efficiently under different conditions by changing the impeller pitch.
Slurry pumps are essential for moving hard-to-handle, high solids-content fluids and sludge, and annual demand for these pumps reflects just one aspect of the significant space they occupy in several industry sectors.