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    Metallurgical ContentBall Mill TRUNNION BEARINGSTrunnion BRONZE BUSHINGSTRUNNION BASE AND CAPBall Mill LUBRICANT JACKSBall Mill PINION SHAFT BEARINGS The first part of the mill that we will look at is the TRUNNION BEARING. This is a HYDROSTATIC BEARING which is a slow moving bearing that carries a heavy load. Usually it is constructed from ...

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  • Outotec® MH Series Grinding Mills - Outotec

    Main bearing technology. MH Series mills use grease-lubricated spherical roller bearings with a v-ring and labyrinth seal to ensure a long lifetime. The free-end housing is equipped with rocker technology to accommodate axial movement of the mill. This means fewer spare parts to maintain and improved availability of parts.

  • Mill Lubrication System - SlideShare

    Parts of SAG Mill to be lubricated: Trunion Bearing (feed end) Motor Bearings Gearbox Pinion Bearings Fig.1 : SAG mill Diagram Trunion Bearing (dis. end) 7. Lubricant Data: Masbate Gold Project’s SAG mill uses Compounded Gear Oil as their main lubricant. But a different class of Gear oil is use in every operating system of the SAG mill. SAG ...

  • Autogenous and Semi-Autogenous Mills

    Benefit from SAG and AG Mills in many drive arrangements, sizes and bearing designs. Your operation requires a SAG or AG Mill that is flexible, durable, cost-efficient and tailored to your specific needs and use cases. That's why we offer a full product range from 4.3m to 12.2m in diameter with multiple options for configuration of designs to ...

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  • SAG Mill Components - Mineral Processing Metallurgy

    Once the basic operating conditions have been defined for the mill designer then, and only then, can he begin taking into account shell and head stresses and trunnion bearing sizes required to carry the load and to give the required openings for feeding and discharging the mills. Mill heads are key structural components of any grinding mill.

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    acid-resistant mills for grinding in raffinate or with acid-forming feed, as well as special feed and discharge arrangements and special bearing arrangements. Outotec SAG and ball mill Outotec high-performance grinding mills use advanced simulation tools for the best possible process efficiency, mechanical reliability, and maintainability. Our ...

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    Benefit from SAG and AG Mills in many drive arrangements, sizes and bearing designs. Your operation requires a SAG or AG Mill that is flexible, durable, cost-efficient and tailored to your specific needs and use cases. That's why we offer a full product range from 4.3m to 12.2m in diameter with multiple options for configuration of designs to ...

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    The Selection and Design of Mill Liners - MillTraj. The Selection and Design of Mill Liners . . Mill Linings Systems/Technical Support, Minerals, , SE-934 81 Ersmark, Sweden . material used for SAG mill liners. There are a number of variations with either different carbon or chrome contents. The variations tend to have a bearing

  • RESPONSE OF PRIMARY GRINDING MILL PERFORMANCE TO

    For the prototype unit installed on a SAG mill, duplicates of the gearbox and stepper motor assembly were manufactured and swapped out at various intervals for inspection. Typically, only the main bearing holding the pendulum weight was replaced at around one year intervals as a preventative maintenance measure. The

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    the ball mill; this can be caused for example by required inspections performed on the SAG mill (shell, bearings, etc.), which leads to a relative short shutdown of the SAG mill. If the ball mill would be equipped with fixed speed motors, then they will have to be washed out, isolated and stopped. Otherwise by keeping the ball mills running ...

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    the ball mill; this can be caused for example by required inspections performed on the SAG mill (shell, bearings, etc.), which leads to a relative short shutdown of the SAG mill. If the ball mill would be equipped with fixed speed motors, then they will have to be washed out, isolated and stopped. Otherwise by keeping the ball mills running ...

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    03/10/2017  Bearing Cap of a SAG Mill Pinion DE BRG on the cap loaded side pinion. Bearing size is 23284.

  • 作者: Reliability Solutions
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  • TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL

    for the mill bearings, the mechanical mill brake control and the visualization of all parts of the drive system. Figure 1 shows a picture of a ringmotor used in copper concentrators. The poles of the rotor are directly mounted on the surface of the mill flange. Typically, the synchronous motors used in SAG mills have a power higher than 10 MW ...

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  • SAG Mill - Semi-Autogenous Grinding Mill

    The SAG mill and all other grinding equipment is remotely monitored and controlled via computer from a central control room. The control room operator watches four video terminals and a CCTV monitor to keep track of critical process variables impacting mill throughput.

  • 3 inspection packages for your horizontal grinding mill

    Main bearing Check pressures and flows, seals Operating l l l Visual inspection, check main bearing clearances Stopped l l l Pinion bearings Check flows, temperature, vibration Operating l l l Reducer Check temperature, verify type of lubricant Operating l l l Visual inspection, inspection of oil condition (color, air bubbles) Stopped l l l

  • SAG Mill - Semi-Autogenous Grinding Mill

    The SAG mill and all other grinding equipment is remotely monitored and controlled via computer from a central control room. The control room operator watches four video terminals and a CCTV monitor to keep track of critical process variables impacting mill throughput.

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  • Mill (grinding) - Wikipedia

    SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. The largest SAG mill is 42' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor.

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    A Nral Network Model For SAG Mill Control. The attributes of the Ok Tedi SAG mills that are used by the expert system are power draw lift pressure motor temperature and recycle tonnage Fresh feed tonnage and feed density are the A typical example is the SAG Mill 1 Bearing pressure described later in Figure 3 These fuzzy. more

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    Ball Mill Preventive Maintenance August 11, 2015 03:06:27 PM Ball mill preventive maintenance (PM) It is a frequency work to maintain and repair ball mills, AG mills and SAG mills. The maintenance work influences the rotational speed and service life of ball mills. In order to reduce downtime of ball mill, regular examination and timely ...

  • AN OVERVIEW OF THE DESIGN, CONSTRUCTION,

    of capital. As a result of this, the decision was made to use matched drives and bearings on the SAG and ball mills. The drive design was optimised to provide maximum interchangeability. The following items are interchangeable between the SAG and Ball mill. ¾Main drive motors ¾High speed couplings ¾Gear reducers ¾Low speed couplings ...

  • Shell vs Trunnion-Mounted Mills - eand.au

    Both mill types can be made sufficiently stiff. The issue appears to be a case of highlighting an attribute of a particular mill type that has no practical significance to the mill installation. Shell-mounted mills with end walls directly above the main bearings are generally stiffer than trunnion-mounted mills.

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  • Size Reduction - CJT Surplus

    DS03910 – used/refurbished 17’ dia x 5’ long autogenous mill. Manufactured by Aerofall (now Polyisus) 20”wide x 83” dia., shoe style bearings

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