SU716600A1

SU716600A1 - Method of classifying ferromagnetic pellets

Info

Publication number: SU716600A1
Application number: SU772558054A
Authority: SU
Inventors: Александр Евгеньевич Рыцк; Лев Алексеевич Ломовцев; Евграф Александрович Пахомов; Генрих Харитонович Бойко; Анатолий Александрович Носовский; Мордух Хаимович Фастовский
Original assignee: Уральский завод тяжелого машиностроения им.С.Орджоникидзе
Priority date: 1977-12-21
Filing date: 1977-12-21
Publication date: 1980-02-25

Description

Изобретение относится к области обогащения полезных ископаемых и может быть, в частности, использовано для подготовки сырья к металлургическому переделу.The invention relates to the field of mineral processing and can be, in particular, used to prepare raw materials for metallurgical processing.

Известен способ классификации окатышей из ферромагнитйого материала, включающий подачу материала на рабочую поверхность, сообщение частицам одинаковой поступательной скорости и разбрасывание материала [1].A known method for the classification of pellets from a ferromagnetic material, including feeding the material to the working surface, communicating particles with the same translational speed and scattering the material [1].

Цель изобретения — снизить разрушение окатышей за счет уменьшения скорости разбрасывания.The purpose of the invention is to reduce the destruction of the pellets by reducing the spreading rate.

Это достигается тем, что перед разбрасыванием на материал воздействуют вращающимся магнитным полем напряженностью 200—-1600 Э. причем скорость разбрасывания составляет 1—5 м/с.This is achieved by the fact that before spreading, the material is exposed to a rotating magnetic field with a strength of 200-1600 Oe. Moreover, the spreading speed is 1-5 m / s.

Способ осуществляют следующим образом.The method is as follows.

Ферромагнитные окатыши подают на рабочую поверхность, где им сообщается поступательное перемещение, затем на части2 цы воздействуют вращающимся магнитным полем и разбрасывают. В результате воздействия на окатыши вращающегося магнитного поля они получают различные начальные скорости, которые определяются 5 размерами окатышей, причем чем больше окатыши тем больше их начальные скорости.Ferromagnetic pellets are fed to the working surface, where they are given translational movement, then particles are exposed to particles by a rotating magnetic field and scattered. As a result of the impact of the rotating magnetic field on the pellets, they get different initial speeds, which are determined by the 5 sizes of the pellets, and the larger the pellets, the greater their initial speeds.

Сообщение окатышам начальной скорости качения позволяет снизить скорость раз10 брасывания частиц, что уменьшает их разрушение.Communicating the initial rolling speed to the pellets allows to reduce the rate of dispersion of particles, which reduces their destruction.

Claims

The invention relates to the field of enriched minerals and can in particular be used for the preparation of raw materials for metallurgical processing. A known method of classifying pellets of ferromagnetic material includes feeding the material onto the working surface, conveying particles of the same translational speed and scattering the material 1. The purpose of the invention is to reduce the destruction of the pellets by reducing the spreading rate. This is achieved by the fact that prior to spreading, the material is subjected to a rotating magnetic field with a strength of 200-1600 E. The spreading speed is 1-5 m / s. The method is carried out as follows. Ferromagnetic pellets are fed to the working surface, where they are transferred in translation, then the particles are subjected to a rotating magnetic field and scattered. As a result of the impact on the pellets by rotating its magnetic field, they receive different initial velocities, which are determined by the size of the pellets, and the larger the pellets, the greater their initial velocities. Providing pellets with an initial rolling speed reduces the rate of particle ejection, which reduces their destruction. Claims 1. Method for the classification of pellets of ferromagnetic material, including the supply of material to the working surface, giving the material particles the same translational velocity and scattering of the material. Characterized by the fact that, in order to reduce the destruction of the pellets by reducing the speed of scattering, before scattering, the material is subjected to a rotating magnetic field.

2. A method according to claim 1, characterized in that the strength of the rotating magnetic field is 200-1600 E.

3. The method according to claim 1, characterized in that the speed of spreading is 1 5 m / s. -.

Sources of information taken into account in the examination

1. Kvaskov A. P. Intensification of the process of dry magnetic separation of iron ores. - Ore dressing, 1964, No. 5, p. 5-6.