摘要:
The invention relates to a method and an installation for crushing material to be ground in a pressing mill, whereby vibrations that may be produced by air pockets in the material to be ground are reduced. According to the invention, it is proposed that the material to be ground, in particular coarse pieces, is fed into a charging device, is moistened by the addition of liquid and is subsequently crushed by a pressing mill. Moistening the material to be ground causes it to agglomerate. As a result, there is less air in the material to be ground. This avoids the escape of air from the material to be ground, as a result of which the pressing mill runs more smoothly and without vibration.
摘要:
The invention relates to a method for finely grinding a carbonated material load, wherein the carbonated material load in the form of millimeter-size or micron-size particles is introduced into the inlet of a first vibrating mill chamber (5) the outlet of which is connected to the inlet of a second vibrating mill chamber (7), the first and second vibrating mill chambers each comprising grinding media freely accommodated therein and designed to grind particles. In said method, the first and second chambers are made to vibrate so as to crush the introduced particles between the grinding media and between the grinding media and the peripheral inner wall of each chamber. According to the invention, additives of mineral materials and/or additives of plant materials and/or additives of materials of plant origin are also introduced into the inlet of the second vibrating mill chamber, the additives being in the form of a micron-size powder.
摘要:
The invention relates to a method for finely grinding a feed of carbonaceous material, in which the feed of carbonaceous material is introduced into the intake of a vibratory mill chamber (5) in the form of millimeter-or micron-sized particles, said vibratory mill comprising grinding media freely housed inside the chamber and adapted to grind particles. According to the invention, the chamber is made to vibrate such as to crush the particles (i) between the grinding media and (ii) between the grinding media and the inner peripheral wall of the chamber. According to the invention, an abrasive powder of mineral material (4) having millimeter-sized particles is also introduced into the intake of the chamber.
摘要:
A method for grinding a solid composition comprising an alkali or alkaline earth metal borohydride to produce a solid composition having a stable average particle size by grinding the alkali or alkaline earth metal borohydride in the presence of fumed silica, magnesium carbonate, or a combination thereof.