Waste silicon sludge granulation forming silicon particle conveying and drying method and device

Abstract

The invention discloses a waste silicon sludge granulation forming silicon particle conveying and drying method and device, and belongs to the technical field of solid forming material transfer and drying. According to the method and device, silicon particles obtained after waste silicon sludge granulation forming are transported in batches through a mechanical conveying device to a drying room which is internally provided with a high-temperature heat source, a fan and a dehumidifying port, then static drying is performed, and dried formed materials are prepared. A technological process of themethod can comprise tray loading, support loading, drying and unloading. According to material characteristics of forming waste silicon sludge and physical requirements of the silicon particles during and after drying, key factors affecting silicon particle drying are combined, while the drying efficiency is improved and the energy consumption and labor cost are reduced, efficient conveying and drying of the waste silicon sludge after granulation are achieved, and therefore, the waste silicon sludge granulation forming silicon particle conveying and drying method and device are of crucial significance in the field of conveying and drying of solid materials.

Description

technical field

[0001] The invention relates to the technical field of conveying and drying solid materials, in particular to the transfer and drying of silicon particles formed by granulation of diamond wire cutting waste silicon mud. Background technique

[0002] The drying technology of solid materials is widely used in many industrial productions. The traditional drying method is the most convenient and economical method of drying materials, but it requires a wide space and the drying speed is slow and time-consuming, the work efficiency is low, and it is also affected by various factors such as weather, so it is difficult to apply in the industrial field. In the solar photovoltaic industry, silicon wafer cutting (single crystal silicon, polycrystalline silicon) will produce a large amount of cutting silicon powder. Silica mud. Due to the high value of silica fume (the market price is 80,000 to 100,000 yuan / ton) and the fine particles (average particle size is less tha...

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