A kind of siderite pretreatment equipment

Abstract

The invention relates to pretreatment equipment for siderite. The pretreatment equipment for the siderite comprises an oxidation hydrolysis system, a cleaning-drying system, a flow distribution system, a breaking system, a wind washing system, a collection funnel, and a sieving system. According to the pretreatment equipment for the siderite, oxidation hydrolysis is carried out on the siderite through the oxidation hydrolysis system to obtain limonite, an electrolyte in a working groove I is ventilated through a pump machine and a gas pipe to promote the rapid progress of an oxidation hydrolysis reaction, and the oxidation hydrolysis reaction is further accelerated through the stirring of stirring blades for the electrolyte, so that the efficiency of the oxidation hydrolysis is greatly increased. The flow distribution system breaks, scatters and sieves mineral materials, and completes flow distribution operation with regard to the mineral materials with different shapes and dimensions,and the subsequent specified breaking of the system for the mineral materials subjected to flow distribution is promoted, so that the processing speed is effectively increased; and the sieving systemcarries out magnetic separation sieving on the mineral materials treated by the breaking system and the wind washing system, and sieves the limonite from metallic mineral materials, so that high-quality limonite is obtained.

Description

technical field [0001] The invention belongs to the technical field of mineral processing equipment, and in particular relates to siderite pretreatment equipment. Background technique [0002] Siderite (siderite) is a widely distributed mineral, and its composition is ferrous carbonate. Siderite is generally found in a thin layer with shale, clay or coal. Siderite is generally in the form of crystal grains or dense lumps, spheres, and gels without crystals. Siderite can also become limonite in the case of oxidative hydrolysis. Limonite is often massive, earthy, stalactite-like or grape-like, loose and porous or powdery. Tan or dark brown. Streaks yellowish brown. The luster is dull, and the hardness varies depending on its composition and shape. The hardness of dense blocks rich in silicon can reach 5.5; It is formed by the oxidation and decomposition of iron-containing minerals, especially the surface part of the metal sulfide deposit. After the ore is oxidized, it of...

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Problems solved by technology

[0003] At present, the processing equipment for siderite pretreatment has defects such as insufficient processing and imperfection of siderite processing

If siderite is not oxidized and hydrolyzed, its own hardness is very low, and it is gelatinous, so it cannot be processed at all.

Although some equipment can complete the oxidative hydrolysis treatment of siderite, generally the reaction is insufficient, the formation is not complete, the purity and quality of the obtained limonite are poor, and the thorough and efficient oxidative hydrolysis of siderite cannot be realized.

Moreover, the existing equipment does not process according to the characteristics of the limonite obtained after oxidation and hydrolysis, and the crushing treatment is insufficient, which often easily leads to the occurrence of machine jamming in the subsequent processing process

In addition, the existing equipment cannot completely screen out the limonite obtained by oxidation and hydrolysis from other minerals or impurities, and there is no special impurity removal mechanism, resulting in poor quality and appearance of the obtained limonite

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