911metallurgist-SAG Mill Components - Free download as PDF File (.pdf), Text File (.txt) or read online for free. The document discusses the key components of SAG (semiautogenous grinding) mills, including mill heads, shells, trunnion bearings, and drives. Mill heads must carry the load of the shell, liners, and material while transmitting …
SAG mills have proven to be efficient and reliable machines for grinding copper ore in the mining industry. They are a critical component of the processing circuit and play a …
How can i control mill load with Trunnion bearing pressure ? We have faulty load cell in our SAG mill. We have previous relation trends when load cell was working fine. We need to develop relationship formula . Please assist me. J. Jorge. 5 years ago. Jorge 5 years ago. Like. Follow the link,
The versatility of trunnion bearings makes them indispensable across a wide range of industries, including mining, cement production, oil and gas refining, and marine applications. In mining operations, trunnion bearings are utilized in grinding mills and ball mills to support the heavy loads and ensure smooth rotation during ore processing.
On site we have a Sag Mill Driven by a 5500KW Motor. We have a vibration issue right across the Mill. The highest vibration is 30mm/sec RMS axial on the motor n ... Now the trunnion bearing on the fixed end discharge has moved from its original position and possibly the pinion is on another position of the girth gear.
Mill TRUNNION BEARINGS. The trunnion bearing assemblies can now be mounted on their sole plates. If the bearings are of the swivel type, a heavy industrial water-proof grease should be applied to the spherical surfaces of both the swivels and the bases. Move the trunnion bearings to their approximate position by adjustment of the …
The term "trunnion" refers to the cylindrical projections or extensions that support the weight of the rotating component, typically a shaft or drum, within the bearing housing. Functionally, trunnion bearings provide stability and support, allowing the rotating equipment to operate efficiently and reliably under demanding conditions.
SAG Mill Charge. Defining the charge weight and height for fully autogenous grinding mill requires allowance for the ore specific gravity (and its variations) and accounting for the water content and the …
The ball mill trunnion, also called the ball mill hollow shaft, is an important part that carries the rotation of the ball mill cylinder. It mainly plays the role of supporting and connecting the cylinder and is the inlet and outlet …
The oil level can be seen at any time during operation to replenish the oil in time and avoid the occurrence of bearing damage accidents. AGICO trunnion bearing is made of ZG35 and ZG45 cast steel, which has high hardness, excellent wear resistance, strong bearing force, and small loss. It can work continuously for a long time.
A trunnion mill has the trunnion bearing supporting the entire weight of the mill. Changing out a trunnion rolling element (or sleeve) bearings requires the support an entire end of the mill. Specialize cradles and lifting gear is required. With a slipper pad bearing mill, the load is distributed via 4 (or more) pads per end.
SAG mill trunnion. AG mill trunnion. 5. Additionally, mill trunnion seals are essential to prevent contaminants from entering the trunnion bearing area. Proper mill trunnion seals help maintain bearing integrity and extend life. Mill trunnion seals must be designed to withstand operating conditions and effectively keep out dust, moisture and ...
A SAG mill, or semi-autogenous grinding mill, is a type of machine used in mining and mineral processing operations. It uses the crushing and grinding action of rocks to reduce materials such as copper ore into smaller pieces for further processing. Unlike traditional mills that rely on steel balls or other media to break down materials, SAG ...
The trunnion deformation pattern is obtained through a structural analysis of the entire SAG mill under its worst possible operating conditions. For the hydrostatic bearing application, the worst case is in the absence of any hydrodynamic action in the bearing when the mill is not rotating, and when the un…See more on 911metallurgist
The process variables that are linked to the SAG mill are used in clustering, such as weight or bearing pressure, power draw, feed size, feed rate, percent solids, acoustic noise, and water addition.
The ball mills are rotary equipment used in mining plants in grinding, which uses steel balls to reduce the particle size of the ore as shown in Fig. 1. The rotating assembly of the mill is supported by two bearings, called trunnion bearings indicated in Fig. 2. The bearings are static components having bushings, on which the mill rotates.
A trunnion bearing lubrication system retrofit featuring: • Custom-sized reservoir • Filtration system and heat exchanger • Temperature, flow, and pressure instrumentation Your challenge Maintaining oil temperature, flow, and cleanliness is vital for the health of your mill. If not controlled, fluctuations can shorten
Grinding Mill Gear Assembly. Previous. Next. We will begin with the mill's bull gear assembly and work towards the motor, The BULL GEAR, sometimes called the RING GEAR is designed to turn the mill transforming the energy of the motor into motion for the mill. By mill we refer to Ball Mills, Rod Mills and SAG Mills. Anything gear and …
is vital for the health of your mill. If not controlled, fluctuations can shorten the life of key components. Outotec solution: A trunnion bearing lubrication system retrofit featuring: • Custom-sized reservoir • Filtration system and heat exchanger • Temperature, flow, and pressure instrumentation Grinding retrofits Trunnion bearing
AGICO adopts unique heat treatment technology to increase the hardness of the ball mill trunnion by 30% and the impact resistance is enhanced as well. AGICO ball mill hollow shafts are made of high-strength steel. We have optimized the structure of the hollow shaft to ensure its stability under long-term operation and prolong its service life ...
Drawing on years of experience and process knowledge, our trunnion replacement service combines our state-of-the-art trunnion design, high-quality parts and expert onsite …
Hydrostatic bearing upgrade. The HSB upgrade is a modernization solution that helps maintain the optimal performance of grinding mill equipment. The proven design improves the durability and serviceability of both radial and axial hydrostatic bearing pads and is the standard arrangement in many new mill installations.
The process variables that are linked to the SAG mill are used in clustering, such as weight or bearing pressure, power draw, feed size, feed rate, percent solids, acoustic noise, and water...
FSDR .. K housings are large, low-weight pillow (plummer) block housings designed specifically for grinding mills. They operate under arduous conditions in highly contaminated environments. With their highly effective sealing solution, they enable the incorporated bearing to achieve maximum service life by preventing the ingress of …
Thus, with condition monitoring of the SAG mill behaviors employing vibration, acoustic and thermal signals, the relevant parameter can be diagnosed and monitored. ... As shown in Fig. 1, the bearings of motor 1, the bearings of pinion 1 and mill trunnion were selected to monitor their performance characteristics. In each of the …
Extend bearing service life and cut maintenance costs Trunnion bearings in cement and grinding mills are exposed to extremes in heat, cold, rain and harsh airborne particulates. To help protect bearings against these extreme conditions and avoid possible production headaches, large amounts of grease are used to purge contaminants from trunnion ...
A SAG mill, or semi-autogenous grinding mill, operates on the principle of autogenous or self-grinding. It uses a combination of ore and grinding media to break down larger rocks into smaller pieces. Understanding the working principles of a SAG mill is crucial for anyone involved in the mining industry. In this section, we will delve deeper ...
Process optimisation for your SAG Mill Total Cost of Ownership Tool Back. Conveyor Volume Flow Control. Back. Digital Twin Belt Conveyors. Back. LoadIQ Smart sensor technology. Back ... Trunnion bearings . Bronze inserts • Swivel blocks . Girth gears . Pinion bears . News. 29 June 2024. Presentation of Q2 2024 Interim Financial Report. …
Improvements in SAG mill components such as bearings, liners and even nuts and bolts also help operators achieve higher availability levels by extending the intervals between …
The mill trunnion bearings are a key assembly in mill operation. If the trunnion bearings are not reliable the complete mill is not reliable. Various trunnion …
The new measurement technique is demonstrated by surveying the load of a large SAG mill following a crash stop and a subsequent grind-out. The SAG mill in this example has an internal diameter of 11.93 m; a belly length inside liners of 6.09 m; cone angles of 15 degrees and a trunnion diameter of 2.80 m.
How can i control mill load with Trunnion bearing pressure ? We have faulty load cell in our SAG mill. We have previous relation trends when load cell was working fine. We …
A generalized SAG mill power draw equation developed by Austin, is given by: where the parameters used in the model are defined as: mp= net mill power (kW) K = a constant (kW/ton m0.5) D = mill internal diameter (m) L = mill length (m) J = fractional volume of mill filled by total charge. εB = effective porosity of the total charge.
Trunnion bearing ball mills are a type of ball mill characterized by their use of trunnion bearings, which are large cylindrical bearings encased in housings that support the mill's rotating …