RU123U1 - Installation for processing caked dispersed material - Google Patents

Abstract

Installation for processing caked dispersed material containing inclusions, including a crusher and magnetic separators, characterized in that the crusher is made in the form of a rod mixer, at the outlet of which a classifier is mounted with a sieve mesh size corresponding to the maximum grain size of the dispersed material, and magnetic separators are installed after classifier.

Description

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to application 93-017156 / 33

Installation for processing caked dispersed material, including its inclusion

The utility model is intended for separation and processing.

flown dispersed material containing inclusions, with the separation of components and their subsequent use as intended. nzhu, including as raw materials for building materials, eg, dumped decaying slags, contains 1 full metal and non-decaying pieces of ash and slag, tailings, burnt land and other waste.

Metallurgical donkeys that have passed the stage of self-decay, in particular electric steel smelting slag, are unsuitable for further disposal without additional treatment for several reasons. Firstly, they contain metallic inclusions. Secondly, the decayed slag can contain moisture, due to the natural increase in its thickness in dumps from atmospheric precipitation, and also due to the water cooling method used in a number of industries in slag pits. In this case, the processing of slag in mills is difficult for sticking masses to grinding media. In addition, a number of steelmaking operations are characterized by pressing in the class of decomposed slag, non-decomposable 1 inclusions

A known method of processing decomposed slags using pneumatic classifiers is used: slag is fed to a classifier perpendicularly 1C / gas flow, light particles are carried out into cyclones and filters, and heavy particles fall into the hopper classifier, which is pulled down from the bottom, in the classifier. The disadvantage of this method is its suitability only

for almost dry slag, while herd melting slags after transporting them from slag SLA can contain up to 2CL of moisture, so to implement this technology slags must be pre-dried and defrosted in winter time (1) The closest analogue is accepted for prototype, is a method of processing slag using crushers and mills (2), the Method provides for consistent use. several:

crushers with different sizes of clearance in crushing organs. For the decomposition of steelmaking: slag, the use of mechanisms such as a crusher is inefficient, since there is no need to impact crushed material with powerful shocks. The strength of flocculated and even shaved co-agglomerates of decaying slag is insignificant, increasing for the separation of its particles from metal and non-disintegrating igneous inclusions. Processing to the smallest extent involves the use of either dry raw materials, or moistening to the consistency of the sludge, which predetermines, respectively, the preliminary drying of the slag, or the expansion of moisture from the slarl after polio,

The task of a useful modeg is to separate from dispersed materials: foreign inclusions and to separate agglomerated and adhering conglomerates into particles of the initial size at a mini-total energy consumption using the initial amount of used equipment.

The essence of the invention lies in the fact that the installation for processing flown dispersed material containing the inclusion contains a shotgun made in the form of a stern mixer, at the outlet of which a classifier with a racer is mounted. sieve cells corresponding to the maximum grain size of the dispersed g; 1 material, and after the classifier magnetic separators are installed on the paths of the separated flows.

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Comparison of the claimed utility model with the closest analogue shows that the combination of the essential features of their vzlzvyazn and their location is not known from the prior art and allows for a very small number of aggregates and minimal energy consumption to ensure the separation of dispersed material from large foreign inclusions and from metal with the simultaneous destruction of conglomerates of dispersed material to particles of their original size; at the same time, it is possible to avoid sticking of the woven material on the crushing surfaces. The described effect can be achieved on the manufactured industrial equipment. Thus, the proposed utility model is new and industrially applicable.

The drawing shows a diagram of an installation for crushing the following dispersed material containing inclusions.

The installation consists of a core mixer I, on the discharge end 2 of which classifier 3 is located. Transportation of classified material is carried out by conveyors: 14 for transportation of large inclusions, 5 for transportation of dispersed material. All conveyors are equipped with lignite separators 6 for removing metal. If necessary, special detectors are used that provide a mechanism for removing non-magnetic metal.

At npiMepe for processing decomposed slag, the installation works as follows: the pieces of decomposed slag 7 that are too large in conglomerates, with the inclusion of impurities and metal, are poured into the eraser mixer I. small bodies. During the operation of the mixer, decaying particles of slag are separated from pieces of metal

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and other inclusions and the one-way separation of the slag parts themselves from each other, the mixer operates on a separate basis. The process of processing caked slag depends on many Mctors and, first of all, on the state of the flocking harness: its moisture content, degree of freezing, physical and mechanical properties, therefore loading mixer, its angle of inclination, rotational speed, diameter and number of jets (not shown in the drawing) are selected in each case; for production in accordance with the law. At the discharge end 2 of the mixer, a classifier 3 is installed with a sieve mesh size corresponding to the maximum grain size of the decayed slag. Sifted large inclusions of metal and non-decomposed slag (in the case of its presence) fall on conveyor 4, decayed slag passed through a sieve and inter-metallic inclusions - on conveyor 5, Metal is removed using magnetic separators 6 and sent for re-melting. Large inclusions of non-decaying slag can be used to obtain slag crushed stone after crushing and fractionation. Sifted re: a fallen galak to be used as a component with a high content of CaO in the metallurgical industry, in the production of cement, as a dispersed filler in the industry of building materials and products, in the manufacture of construction work, in the technology of products made of earthenware, etc. The application of the proposed installation allows one operation — a sterling mixer — to separate the particulate material from large foreign inclusions. as well as from metal with the simultaneous destruction of conglomerates of dispersed material, it was independent of its moisture and degree

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Claims (1)

Installation for processing caked dispersed material containing inclusions, including a crusher and magnetic separators, characterized in that the crusher is made in the form of a rod mixer, at the outlet of which a classifier is mounted with a sieve mesh size corresponding to the maximum grain size of the dispersed material, and magnetic separators are installed after classifier.