Sodium sulfocyanate caking prevention apparatus and method thereof

Abstract

The invention relates to a device and a method for preventing sodium thiocyanate from agglomerating, and belongs to the technical field of chemical industry. The device includes a liquid distribution tank for preparing the anti-caking agent solution; a liquid inlet pipe, a spray nozzle, a feed port and a horizontal screw centrifuge; one end of the liquid inlet pipe is connected with the liquid distribution tank, and the other end is A spray nozzle is set and connected to the horizontal screw centrifuge; the spray nozzle sprays toward the inside of the horizontal screw centrifuge; a feed inlet is arranged on the horizontal screw centrifuge; the anti-caking agent solution is The pipe flows to the spray nozzle to atomize and spray on the sodium thiocyanate that enters the horizontal screw centrifuge through the feed port, and after mixing evenly, it is separated and centrifuged. The present invention also provides a method for preventing sodium thiocyanate from agglomerating based on the device. The sodium thiocyanate product that is not easy to agglomerate, has stable performance and can maintain a loose state for a long time can be obtained by adopting the device and / or method of the present invention.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a device and method for preventing sodium thiocyanate from agglomerating. technical background [0002] A very troublesome characteristic of sodium thiocyanate products is agglomeration, that is, lumps are formed by mutual extrusion in a loose state, especially in hot and humid seasons, long-term stacking, and stacking extrusion, which brings serious problems to the use of the product. Great inconvenience. At present, the main measures to prevent the caking of sodium thiocyanate products are strict drying operation to reduce the moisture content of the product; reduce the product temperature during packaging; pack in an environment with very low humidity and store in airtight packaging; reduce the stacking pressure during storage. After adopting the above several methods, the occurrence of sodium thiocyanate agglomeration cannot be completely avoided. Later, a method o...

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Problems solved by technology

After adopting the above several methods, the occurrence of sodium thiocyanate agglomeration cannot be completely avoided. Later, a method of adding an anti-caking agent in a certain proportion to the sodium thiocyanate product was proposed. Although this method can greatly reduce the thiocyanate The possibility of sodium acid agglomeration, but there are also certain problems: uneven mixing

The device used in this method adopts the design of partition wall cooling and multi-layer impeller stirring, on the one hand, it can ensure that the product temperature can be reduced rapidly, on the other hand, it can make the product and anti-caking agent evenly mixed, so as to reduce the possibility of product caking after packaging. , but this method cannot fundamentally guarantee the anti-caking effect

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