Luoyang Zhongtai Industrial Co., Ltd.
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Fully Functional Φ 8.8m× 4.8m (F/F) Wet Sag Mill And Supporting System
1. Overview, basic conditions
(1) Overview
Sag mills or sag semi-autogenous mills as they are often called, can perform crushing operations equivalent to two or three stage crushing and screening. Sag mills are often used in modern concentrator grinding operations to directly produce finished particle size or prepare feed materials for downstream grinding section.
(2) Geographical and meteorological conditions
For indoor installation, the altitude is less than 1000m.
(3) Rotation of the mill
Right-hand rotation
Rotation interpretation: from the feeding end to the discharging end, the main motor is on the right.The main motor is at the discharging end.
(4) Work System
Continuous work 330d/a, 24h/d, 3 shift /d, 8h/ shift.
(5) Power Supply Conditions
Power supply: high-voltage three-phase four-wire 10kV, output voltage range 10kV±10%, low-voltage three-phase four-wire 380V, frequency 50Hz.
(6) Water Supply Conditions
Water quality: neutral and clean circulating water;Water temperature: ≤30℃;Water pressure: 0.3 ~ 0.4mpa.
2. List of supplied equipment
(1) Description of Supplied Equipment
Supply scope includes fully functional wet sag mill and supporting system, including sag mill body, mill drive motor, safety coupling, full set of lining plate, full set of oil lubrication system, full set of electrical (control) system, all kinds of auxiliary machines, full set of special tools, foundation bolts and base.Detailed equipment design, manufacturing, inspection, painting, packaging, delivery, training, technical services, technical data, installation and commissioning guidance, etc.
(2) Supply Interface
Mechanical part supply interface
The lower end face of the bottom plate of the seller's equipment is mounted on the support base.The anchor bolts and gaskets shall be provided by the seller and shall be installed at the designated grout layer above the concrete foundation.
The feeding trolley falls on the hopper.
Including feeder trolley track and feeder trolley.
After the discharge of the mill.
Inlet and outlet flange surfaces for hydraulic, oil and cooling water of seller's equipment parts.
It does not include the primary embedded parts such as foundation protection pipe and anchor plate (the seller shall provide drawings and the buyer shall make them by himself according to the civil construction progress on site).
No cooling pipes included.
No abrasive medium.
Supply interface for electrical and control parts
Terminal of motor.
The terminal of the seller's accessory equipment for external connection.
Receiving and output terminals of the field control cabinet provided by the seller.
Does not include high voltage switch gear.
Excluding all external cables of cabinets (cable models provided by the seller).
Does not include the first oil (the oil model provided by the seller).
3. Scope of Supply (Supply details of a single device)
| No. | Name | Quantity | Main structure | Note |
| Ⅰ | Equipment ontology | 1 | φ 8.8×4.8m wet sag mill | Made in China |
| 1 | Feeding system | 1 | Box chute electric trolley feeding. | Made in China |
| 2 | Main bearings system | 2 | Full hydrostatic lubrication, three tongue seal, copper tile, double arc surface aligning structure. | Made in China |
| 3 | Rotary parts | 1 | It includes: hollow shaft of inlet and outlet cover, inlet and outlet bushing, barrel body, end cover bushing board, barrel body bushing board, grid board, dustpan board and other necessary accessories. | Made in China |
| 4 | Driving parts | 1 | Includes: big gear, pinion gear, gear housing and other necessary accessories. | Made in China |
| 5 | Base unit | 1 | Includes: device bases plate and anchor bolts. | Made in China |
| 6 | Lubricating oil tube | 1 | Stainless steel tubing. | Made in China |
| 7 | Shield | 1 set | Rotating parts. | Made in China |
4.Main technical parameters
Technical parameters of wet sag mill
| No. | Project name | The numerical |
| 1 | Mill specifications (mm) | Φ8800 x4800 |
| 2 | Inner diameter of cylinder (mm) | 8800 |
| 3 | Cylinder flange to flange length (mm) | 4800 |
| 4 | Effective volume of cylinder (m³) | 250 |
| 5 | Effective volume of end cover (m³) | 42 |
| 6 | Maximum medium fill rate (%) | 8 |
| 7 | Total fill rate (%) | 25 |
| 8 | Maximum ball loading (T) | 108 |
| 9 | Cylinder speed (r/min) | 10.7 |
| 10 | Main motor power | 5500kW |
