device

The spiral classifier is one of the machinery and equipment of the concentrator. It is a kind of machinery and equipment that carries out the classification of machinery and equipment based on the basic principle that the proportion of solid particles is different, so the deposition rate in liquid is different. The beneficiation spiral classifier can grade the ground powder in the ball mill into a filter, and then use spiral blades to tighten the feed inlet of the ball mill to discharge the filtered coarse material from the overflow pipe. The spiral classifier for mineral processing is commonly known as a sorting machine. There are four types of spiral classifiers for mineral processing: high weir single spiral and double spiral structures, submerged spiral classifiers, and double spiral structures.

The spiral classification mechanism key for mineral processing is composed of a transmission system, a coccus, a pickling tank, a lifting system, a lower rubber support (piston pin), and a discharge valve. The beneficiation spiral classifier is generally applicable to the separation of ore and sand by the cable digital television circulation system distributed with the cement ball mill in the mining plant, or the classification of stone sand and fine mud in the gravity concentrator, and the Elo rating system of particle size distribution of coal slurry in the steps of the metal material concentrator, as well as the desliming and drying in the ore washing work.

The key types of spiral classifier for mineral processing include high weir single helix and double helix structures, low weir single helix and double helix structures, submerged spiral classifiers and double helix structures. Low weir types are rarely used, mainly high weir and submerged spiral classifiers.

The sunken spiral classifier is generally suitable for separating ore and sand in a cable digital television circulation system distributed with a cement ball mill in a mining plant, or for grading stone sand and fine mud in a gravity concentrator, and for Elo rating system the particle size distribution of coal slurry in the steps of a metal material concentrator, as well as desliming and drying in ore washing. The submerged spiral classifier equipment has the characteristics of simple structure, reliable operation, and convenient practical operation.

The base of the submerged spiral classifier equipment is made of coarse steel, and the human body is welded with thick steel plates by electric welding. The inlet and bridge shaft of the spiral shaft are equipped with cast iron sleeves, which are wear-resistant and durable. The equipment can be divided into electric and manual types.

Submerged spiral classifier is generally used for classification of grinding control circuit and ore washing, desliming, dehydration and other work in mining plants. The key advantages of submerged spiral classifier are simple structure of machine equipment, reliable operation and convenient operation; It can be automatically connected to the ball mill in the cable digital TV grinding control circuit; Compared with Hydrocyclone, the energy consumption is low. The key defect is that the classification efficiency is low, the machinery and equipment are heavy and occupy a large area. Generally, it is not allowed to connect with ф Cement ball mills with specifications above 3.6m form a cable digital television [6].

The spiral classifier for mineral processing is divided into two types in structure: high weir spiral classifier and submerged spiral classifier. The high weir separator is suitable for coarse particle classification, and the overflow type large particle size distribution is generally 0.4~0.15mm; Submerged spiral classifier is suitable for fine sand classification, and overflow type larger particle size distribution is generally below 0.2mm.