• broken image

    Stone Grinding Mill

    • Capacity: 0.5–60 t/h.
    • Processed Materials: Limestone, calcite, barite, dolomite, potassium feldspar, marble,talcum, gypsum, kaolin, bentonite, medical stone, rock phosphate, iron ore, quartz, active carbon, coal, ect.
    • The stone grinding equipment produced by Di Hai Machinery can meet various needs of coarse grinding, fine grinding and ultra-fine grinding in the field of industrial grinding, and realize free combination production within the range of 0-3000 mesh.

  • Types of Stone Grinding Mill Machine


    broken image

    Raymond Mill

    Raymond mill, also known as raymond grinding mill, raymond roller mill and raymond grinder, is suitable for grinding non-flammable and non-explosive materials.The finished powder size can be adjusted between 30 and 425 mesh(0.613mm-0.044mm).

    Raymond mill is suitable for process in various non-flammable mineral which is below seven Mos hardness, moisture below 6%, such as limestone, calcite carbonate,dolomite, barite, talc, gypsum, diabase, quartz, bentonite, bauxite, iron ore, etc.

    broken image

    YGM High pressure Suspension Grinding Mill

    YGM high-pressure suspension grinding mill is widely used in mining, metallurga, chemical engineering, building materials to grind finely more than 280 kinds of material with Mohs hardness less than 9.3 and the moisture content below 6%, such as barite limestone, ceramic and slag. the granularity of finished product is controlled between 80 and 425 meshes(the minimum is 1000 meshes). and it can produce 30-80 meshes coarse powder by adding some special equipment.


    broken image

    European Type Stone Grinding Mill

    European type stone grinding mill absorb the European advanced grinding technology and philosophy, with bevel gear overall transmission, internal thin oil lubrication system, curved air duct and many other improved new grinding equipment. Large production, low energy comsumption, advanced production capacity of the European grinding mill to meet the customer demand for 1.6-0.045mm fine powder production.


  • Working principle

    The working principle of Raymond mill, high-pressure suspension grinding mill and European stone grinding mill is the same. Let's take Raymond mill as an example to talk about the working principle of mill.

    1. The whole structure of Raymond Mill machine is mainly including the host, analysis machine, plumbing fixtures and the blower, according to user needs, it can be equipped with crusher, elevator, electromagnetic vibrating feeder, electric control cabinet etc.


    2. After materials crushed to the desired particle size, enter into the storage hopper by the elevator, and then through vibrating feeder enter into grinding chamber of Raymond mill uniform continuously.


    3. Due to the centrifugal force when rotating, the rollers swings outward, pressed on the grinding ring, shovel blade scoop up materials, then sent them between grinding roller and grinding ring, due to the grinding roller roller rolling to achieve crushing purpose.


    4. After grinding material, the powder along with the circulating air which made by blower, is brought into the analysis machine for sorting, coarse material will regrind. Qualified powder along with the air enters into finished product cyclone powder collector, then discharge powder tube, that is finished product.


    5. In the grinding chamber of Raymond mill, because there are certain moisture in the grinded material, when grinding, it will generate heat, moisture evaporates, and the pipe interface of the whole is not tight, the outside air is drawn into making the circulation pressure increased to ensure that the mill wok under negative pressure. The increased air flow enter into the dust through the duct, at last enter into the atmosphere after purification.


    With the conventional roller mill design, when fine grinding, the classifier tails (rejected particles) are also quite fine and can be easily entrained into the airstream. However, the fine grinding roller mills is designed with a separate path for the coarse reject material to travel back to the grinding zone in such a way that particle short circuiting is avoided.

    broken image