Waste salt drying, burning and purifying device based on radiation rotary drying

Abstract

The invention discloses a waste salt drying, burning and purifying device based on radiation rotary drying. The waste salt drying, burning and purifying device comprises a fluidized drying bed, a smashing sorting tower and a radiation rotary drying burner. The radiation rotary drying burner comprises a rotation material cylinder which is obliquely arranged. A heating jacket is further arranged on the outer side of the rotation material cylinder. A combustor is arranged below the lower end of the heating jacket. A heat radiation plate is further arranged in the heating jacket. A flame injecting opening of the combustor directly directs at the heat radiation plate. Compared with the prior art, the waste salt drying, burning and purifying device based on radiation rotary drying has the following beneficial effects that heating and warming are conducted in a segmented manner, and the comprehensive energy utilization rate of kinetic energy and heat energy of flue gas is high; the heat radiation plate is used for absorbing energy of flames, the rotation material cylinder is heated evenly in a heat radiation manner, and the temperature is relatively constant; the heating jacket is fixedly arranged, the rotation cylinder rotates in the heating jacket, and the whole rotation material cylinder can be heated consistently in the radial direction; and due to the special design of the shape of the heating jacket, the flow speed of flue gas can be ensured, the thickness of a stagnant layer is reduced, and the heat transfer efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of chemical waste salt treatment and regeneration, in particular to a waste salt drying, incineration and purification device based on radiation rotary drying. Background technique [0002] Industrial waste salt also contains a large amount of organic or inorganic impurities, which cannot be directly used as industrial raw material salt, let alone for food or medical use, and most manufacturers pile it up. The long-term storage of this kind of salt not only occupies a large amount of land, but also poses a huge threat to the environment. The salt and impurities are easily lost, salinizing the surrounding soil, endangering the surrounding vegetation, and polluting the surrounding rivers, water sources, and rice fields. Therefore, using appropriate technology and equipment to recycle this industrial waste salt as industrial raw material salt can not only eliminate pollution, make full use of precious salt reso...

AI Technical Summary

Problems solved by technology

It is necessary to heat the waste salt to a very high temperature to ensure that as much organic matter as possible is decomposed or vaporized, but the fine-grained waste salt is prone to melting during the heating process, and once it melts, serious agglomeration will occur , seriously affecting the subsequent processing steps

The temperature control is too low, and the effective organic matter removal effect cannot be achieved. Therefore, how to increase the heating temperature as much as possible in this process and ensure the stability and uniformity of the heating temperature is a very important issue.

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