RU94029076A - Centrifugal mill - Google Patents

Abstract

FIELD: chemical engineering, food-processing industry. SUBSTANCE: centrifugal mill has housing 2 in which disk working bodies 3, 4 are mounted on coaxial drive shafts. Disk working bodies have percussion members in the form of blades 5 fixed on disks in concentric rows as well as by additional percussion members in the form of beaters 6 (blades) and deflecting planks 9 mounted in housing. The beaters are disposed on one of the disks. They have width overlapping both disks. Output hole placed on external surface (cylindrical or face) of housing is made smoothly passing into ring-shaped channel 12 with angle of coverage not less than 360 deg. Channel 12 has a number of tangentially attached discharging branch pipes the number of which corresponds to that of groups of fractional separation of ground product. Ring-shaped channel 12 disposed on face wall is made spiral with gradual decrease of radius. EFFECT: enhanced functional capabilities of centrifugal mill due to possible separation of ground product into groups according to fractional compound, enhanced efficiency of devices for line grist and superfine grinding of materials. 1 cl

Claims (1)

Изобретение относится к устройствам для тонкого помола и сверхтонкого измельчения материалов и может быть применено в химической, пищевой и других отраслях промышленности. Изобретение расширяет функциональные возможности центробежной мельницы за счет обеспечения возможности разделения размолотого продукта на группы по фракционному составу. Центробежная мельница, содержащая корпус 2, в котором на соосных приводных валах установлены дисковые рабочие органы, имеющие ударные элементы в виде лопаток 5, закрепленных на дисках концентрическими рядами, а также дополнительные ударные элементы в виде бил 6 (лопаток); в корпусе также установлены отражательные планки 9, билы расположены на одном из дисков, имеют ширину, перекрывающую оба диска, а выходное отверстие, размещенное на наружной поверхности (цилиндрической или торцовой) корпуса, выполнено плавно переходящим в кольцевой канал 12 с углом охвата не менее 360°, имеющий ряд тангенциально присоединенных разгрузочных патрубков, количество которых соответствует количеству групп фракционного рассева размолотого продукта. Кольцевой канал 12, располагающийся на торцовой стенке, выполнен спиральным с постепенным уменьшением радиуса. 1 з. п.ф-лы.

The invention relates to devices for fine grinding and ultrafine grinding of materials and can be applied in chemical, food and other industries. The invention extends the functionality of a centrifugal mill by providing the possibility of dividing the milled product into groups according to fractional composition. A centrifugal mill containing a housing 2, in which disk working bodies are installed on coaxial drive shafts having shock elements in the form of blades 5, mounted on the disks in concentric rows, and also additional shock elements in the form of beaters 6 (blades); reflective strips 9 are also installed in the housing, the beads are located on one of the disks, have a width that overlaps both disks, and the outlet located on the outer surface of the (cylindrical or end) housing is made smoothly passing into the annular channel 12 with a coverage angle of at least 360 °, having a number of tangentially attached discharge pipes, the number of which corresponds to the number of fractional sieving groups of the milled product. The annular channel 12, located on the end wall, is made spiral with a gradual decrease in radius. 1 s P. f-ly.