Drying method for cultured spirulina mud

Abstract

The invention discloses a drying method for cultured spirulina mud. A spray drying chamber is included and comprises an exhaust fan, upper stainless steel gauze, a rotary shaft, a temperature controlsensor, a heat conduction oil radiator, a drying outlet, lower stainless steel gauze, an air inlet fan and a spirulina mud inlet. The exhaust fan and the air inlet fan are arranged at the top and thebottom of the spray drying chamber correspondingly. The heat conduction oil radiator fixed to the rotary shaft is arranged in the middle. The upper stainless steel gauze and the lower stainless steelgauze are correspondingly installed above and below the heat conduction oil radiator with the temperature control sensor. Heat conduction oil serves as a heat source carrier, uniform heat is generatedthrough rotary heat dissipation, thus temperature is adjusted and controlled, dry powder is guided out selectively through centrifugal force generated by rotary heat dissipation, wet powder continuesbeing dried, the air inlet fan and the exhaust fan act jointly, humidity of the spray drying chamber is ensured through water vapor emission, and the drying method has the characteristics that mechanized, automatic and flow line production is easy to achieve, and processing quality is good.

Description

technical field [0001] The invention relates to an efficient and rapid drying method for cultivating spirulina algae mud. Background technique [0002] Spirulina Spirulina Microalgae belonging to the phylum Cyanophyta, Oscillatoriaceae, are the earliest photosynthetic organisms on earth. Spirulina is a pure natural high-quality protein food source for human beings, with a protein content of 60-70%. Its unique phycocyanin can improve the activity of lymphocytes, enhance human immunity, and is also rich in vitamins and mineral elements. Relying on wild resources is far from meeting people's needs, and the spirulina Prototheca currently on the market all come from artificial breeding. [0003] Cultured spirulina is cultivated and grown in liquid medium, and the product form of spirulina is dry product, so it needs to be dried in time. The initial drying method is the sun drying method. After the spirulina is squeezed and dehydrated in the sieve silk, it is dried in the sun, ...

AI Technical Summary

Problems solved by technology

For example, the publication number is CN106551386A, and the invention patent titled "a marine spirulina health product and its preparation method" discloses a marine spirulina health product and a preparation method thereof. 25 seconds) Vacuum spray high temperature drying, the temperature reaches about 200°C, but the high temperature destroys the effective functional ingredients such as vitamins and phycocyanin of spirulina

It can be seen that the existing technology has different drying temperatures, large differences in efficiency and cost, lack of standardized facilities and processes, resulting in no uniform standard for algae powder

[0004] In addition, spray drying uses different heat sources, mainly coal-fired boilers at present: due to unstable heat supply, the temperature of the spray chamber is unstable, and the waste gas and residue of coal combustion do not meet the environmental protection standards.

The algae liquid to be dried cannot be distinguished from the algae powder in time, and the algae powder remains in the spray drying chamber, occupying space, resulting in low drying efficiency

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