Preparation device and method of medicinal-grade nutritional phosphate

Abstract

The invention discloses a preparation device of medicinal-grade nutritional phosphate. The preparation device comprises a special combustion tower, a phosphorus melting tank and a hydration tower which are arranged on the side wall of the upper end of a base; a phosphorus spraying gun is arranged between the phosphorus melting tank and the special combustion tower in a communicating mode; and an outlet conveying pipeline is arranged between the special combustion tower and the hydration tower in a communicating mode. Phosphate is prepared by adopting a hot-method phosphate process; the qualityrequirement can be met without being matched with various purification processes; moreover, the preparation device is reasonable in structure, the equipment cost is low, the operation is simple, theefficiency is improved, meanwhile, a waste heat recovery mechanism is arranged on the preparation device, heat energy generated in the preparation process is utilized while preparation is conducted, the recovered heat energy is utilized in the process of producing phosphoric acid through the hot method, steam can be externally supplied to other chemical processes for use, the waste heat recovery efficiency is effectively improved, and loss of a large number of heat energy resources is avoided.

Description

technical field [0001] The invention relates to the technical field of phosphate production and preparation, in particular to a preparation device and method for pharmaceutical-grade nutritional phosphate. Background technique [0002] Phosphorus is an important mineral element necessary for the human body. The main source of phosphorus intake by the human body is natural food or food phosphate additives. Phosphate is one of the natural components of almost all foods. Because phosphate can improve or endow food with a series of Excellent performance, so it began to be used in food processing more than 100 years ago, and it was used in large quantities after the 1970s. Phosphate is one of the most widely used and large-scale food additives. Important food ingredients and functional additives are widely used in the processing of meat products, poultry products, seafood, fruits, vegetables, dairy products, bakery products, beverages, potato products, seasonings, convenience foo...

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Problems solved by technology

[0004] At present, the preparation methods of phosphoric acid are generally divided into thermal method and wet method. The phosphoric acid produced by the thermal method can be directly used as industrial phosphoric acid, and the further manufactured phosphate is called thermal phosphate, while the phosphoric acid produced by the wet method needs to be purified. In order to meet the quality requirements of industrial-grade phosphoric acid, the salt produced by wet-process phosphoric acid is called wet-process phosphate. The preparation of existing pharmaceutical-grade nutritional phosphate often uses the wet-process phosphate process, but it needs to cooperate with a variety of purification processes to achieve Quality requirements, high equipment cost, cumbersome and complicated operation, and although the existing thermal phosphate process can meet the quality requirements and reach the purity of pharmaceutical grade, it will generate a lot of heat energy by burning yellow phosphorus through traditional coal-fired boilers, The lack of recovery and utilization of waste heat has caused a large loss of heat energy resources. Therefore, we have proposed a preparation device and method for pharmaceutical-grade nutritional phosphate to solve the above problems

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