Self-selecting crusher that can automatically sort hard objects

Abstract

The invention discloses a self-selection type crusher capable of automatically sorting hard objects, which comprises a casing (1), a material inlet (2), a material outlet (3) and a power mechanism, and the inner cavity of the casing (1) Divided into a first-level breaking room (4) and a second-level breaking room (26), the first-level breaking room (4) includes the first working pair (5) and a blocking mechanism located below the feed inlet (2), Include the second work pay (6) and the third work pay (7) below the first-level break room (4) in the second-level break room (26), the second work pay (6) and the housing (1) A screen (8) is set between them. The self-selecting crusher, through multi-stage crushing and sorting, can effectively sort out impurities such as hard objects, and reduce energy consumption by at least 30%. It has high work efficiency and low energy consumption. It can take into account both the screening of hard objects or superhard objects and the requirements of crushing particle size. The qualified rate of crushed products is high. When the crusher is working, there are few jams or other failures. The wear is small and the service life is long.

Description

technical field [0001] The invention belongs to the field of crushing equipment, and in particular relates to a crusher, which can automatically and effectively screen hard objects and reduce the energy consumption of the whole machine. Background technique [0002] With the further development of industrial production, the application of crushing and grinding equipment in basic industries such as energy, metallurgy, building materials, chemicals, and mining has become more and more extensive, and has become one of the essential basic equipment in these industries, especially in the field of crushing , which occupies an increasingly important position. [0003] However, in the actual crushing work, the materials to be crushed (collectively referred to as "media" in this document) will inevitably be mixed with some properties related to the physical properties of the medium (including density, magnetism, internal structure, or volume, etc.) impurities with large differences,...

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Problems solved by technology

[0003] However, in the actual crushing work, the materials to be crushed (collectively referred to as "media" in this document) will inevitably be mixed with some properties related to the physical properties of the medium (including density, magnetism, internal structure, or volume, etc.) impurities with large differences, such as magnetic metals, non-magnetic metals or hard rocks and other impurities. For magnetic substances, the current common method is to use magnetic separation for separation, although magnetic separation can be used. However, in large-scale industries, it often cannot meet the needs of the work rhythm; for non-magnetic materials, it is often sorted manually, so the work efficiency is very low

[0004] Some scholars have proposed solutions, including: (1) When designing the crusher, in order to prevent the superhard objects from instantly jamming the working shaft, some equipment with higher power is used to increase the insurance factor, but this method sacrifices The energy consumption of the whole machine is used to ensure the normal operation of the equipment, which does not meet the requirements of modern industrial production; (2) In order to ensure the normal operation of the crusher, a concession mechanism is added to the crusher, through which the superhard objects are crushed along with the crushed However, these superhard objects cannot meet the requirements of the crushing particle size, which will not only lead to a low pass rate of crushed products, but also easily lead to failure of the crusher, accelerated wear and shortened service life

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