The slurry pump selection formula is listed in various industry standards, the symbols in the formula are unified.
1) Typical slurry method
Pipeline features:
Water Hf = ΔH + (1 + ξ) (V ^ 2) / (2g)
Slurry Hmo = ΔΗ + 0.72Ko (Vl ^ 2) + 0.58Ko (V ^ 2)
Pump features:
Slurry Hm = ΔΗ + 0.72Ko (Vl ^ 2) + 0.58Ko (V ^ 2)
Fresh water Hs = Hs * HR
2) Coal Preparation Plant 1
Pipeline features:
Water Hf = ΔH + iL + 2
Slurry Hmo = ΔΗ + imL + 2
Pump features:
Slurry Hm = ΔΗ + imL + 2
Water Hs = H / Km
3) ash calculation method
Pipeline features:
Fresh water Hf = ΔH + 1.05iL
Slurry Hmo = ΔΗγm + 1.05imL
Pump characteristics
Slurry Hm = 1.1Hmo
Water Hs = Hs * γm * Km
4) tailings calculation method
Pipeline features:
Water Hf = ΔH + iL + Σhi
Slurry Hmo = ΔΗγm + imL + Σhi
Pump features:
Slurry Hm = ΔΗγm + imL + Σhi
Water Hs = Hs * γm * Km * Kh
5) Filling mining method
Pipeline features:
Water Hf = ΔH + 1.05iL + Σhi
Slurry Hmo = ΔΗγm + imL + Σhi
Pump features:
Slurry Hm = ΔΗγm + imL + Σhi
Fresh water Hs = Hs * Km * Kh
6) Metallurgical mining law
Pipeline features:
Water Hf = ΔH + iL + Σhi
Slurry Hmo = ΔΗγm + imL + Σhi
Pump features:
Slurry Hm = ΔΗγm + imL + Σhi
Water Hs = Hs * γm * Kh
Symbol and meaning in the formula
Hf, Hmo, Hm, Hs pipe water head and the head of the slurry, the pump head and the slurry head lift;
ΔH head loss;
L pipe length;
i, im water and slurry friction coefficient;
Kh = 1-0.25Cw
γm slurry specific gravity;
Ko = H / (V ^ 2), water calculation pipe head and the square of the speed ratio.
Vl critical sedimentation velocity.
Km = Hm / (Vm ^ 2) slurry calculated pipe head and the ratio of the speed of the square.
Slewing Mechanism and Spare Parts
A slewing mechanism is an essential component of a Tower Crane that allows it to rotate horizontally. It enables the crane to reach different areas of a construction site without having to move the entire structure.
The slewing mechanism typically consists of the following components:
1. Slewing Ring: The slewing ring is a large circular bearing that supports the entire weight of the crane and allows it to rotate. It is usually located at the base of the crane and is designed to withstand heavy loads and provide smooth rotation.
2. Slewing Motor: The slewing motor is responsible for providing the necessary power to rotate the crane. It is connected to the slewing ring and is controlled by the crane operator.
3. Gear Mechanism: The gear mechanism consists of a set of gears that transmit the power from the slewing motor to the slewing ring. It ensures smooth and controlled rotation of the crane.
4. Brake System: The brake system is an important safety feature of the slewing mechanism. It is designed to hold the crane in place and prevent any unintended rotation when the crane is not in operation.
5. Control System: The control system allows the crane operator to control the rotation of the crane. It typically includes joysticks or buttons that enable the operator to start, stop, and control the speed and direction of rotation.
Overall, the slewing mechanism plays a crucial role in the functionality and versatility of a tower crane. It allows the crane to move horizontally, reach different areas of a construction site, and perform various lifting tasks efficiently.
Slewing Motor, Tower Crane Spare Part,Slewing Mechanism,Slewing Reducer,Slewing Bearing,Tower Crane Slewing Motor
SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.syconstructionhoist.com