MTM Trapezium Grinder

Product Features: Low energy consumption, high yielding and high gains

  • Input Size: 0-35mm
  • Capacity: 3-22TPH
  • Material: Limestone, calcite, dolomite, petroleum coal, gypsum, barite, marble, talc, coal powder, etc.

MTM Medium-speed Grinding Mill is a world leading tool for powder grinding. MTM grinding mill absorbs world first-class industrial powder milling technology and organizes the technical experts and related engineers for elaborate design, test and improvement.

Working Principle

After jaw crushers break large bulky materials to smaller ones, elevators work to send materials to the hopper. Then, by electromagnetic vibrating feeders, broken materials are evenly and quantitatively sent to the grinding chamber of MTM Medium-speed Grinding Mill. After grinding, materials are blown away by airflow to the powder concentrator for classifying. Under the action of the impeller of powder selector, materials which fail to meet fineness would be sent back to grinding chamber to get another grinding while qualified powders would be collected by cyclone powder collector and discharged from the bottom as finished products. And, after that, the airflow would go into the fan along with the air return duct at the top of cyclone power collector. This system adopts a closed circuit and runs under positive and negative pressure. Because materials have a certain content of moisture, heat generated during grinding may lead air evaporation or swell in the grinding chamber so that the amount of airflow increases sharply. Besides, if the feed port and joints of pipelines are not sealed well, external air may intrude the grinding mill and lead imbalance of airflow. So, SBM arranges exhaust valves at the air outlet of the fan to induce redundant air into the bag filter. After purifying, the redundant air is discharged. This arrangement can achieve both the balance of airflow and the eco-friendly production.

    Structure Analysis

    • millstone: including the guide ring, ring, ring, the wind stopper lining plate, plate, scraping plate and a lifting device etc.
    • grinding roll: roll sleeve is easy to wear pieces, claims to have enough toughness and good wear resistance.
    • powder selecting machine:it can be divided into static, dynamic and efficient combined type powder selecting machine three major categories.

    Product Application

    MTM Trapezium Grinder is widely used in electric power industry, metallurgy industry, chemical industry, building construction, coal industry, fireproofing materials making industry and some others. About the application of material,it can apply to various non-flammable and non-explosive materials which Mohs hardness ≤9 and humidity content ≤6%. For example, cement, quartz, feldspar, calcite, gypsum, limestone, dolomite, mica, bentonite,graphite, fluorite, rock phosphate, coal, slag, talc, granite, marble, barite, ceramics, glass and other material. Its output product fineness is among 30~ 400meshes and it is adjustable.

    Product Advantage

    • Low production cost, high performance

      The design of the grinding roller and grinding ring into strips, reduced access to material between grinding roller and grinding ring decline, thereby extending the material roller compaction time, increased crushing effects.

    • Good stability, high reliability

      It is equipped with can improve the precision of powder density separator impeller, speed with no change, increase blade density improves the fineness of finished products, finished products under the same power 50% more.

    • Product size composition well

      Within tilt duct can ensure the video into the inlet volute smooth down the incline of the material fell into the mill.Using convenient impeller adjusting device allows separators of leaves end of shell gap size can easily adjust.

    Operational Principle

    MTM Trapezium Grinder operational principle is easy to understand. Air is driven into the undersurface of the grinding ring and flows upward, carrying fines to the classifying section in the grinding mill. The classifier allowed the pulverized material to pass and the oversized particles are drove back to the grinding chamber for further processing. The whole mill operates under negative pressure conditions, which can maximize the service life of span>major mechanica components. Thus minimizing mill maintenance and plant housekeeping problems have been solved.

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