Detoxification method of cottonseed cake
1. Soaking method of ferrous sulfate aqueous solution: Dissolve 1.25 kg of industrial ferrous sulfate into 125 kg of water, soak 50 kg of crushed cotton seed cake, stir several times in the middle, and feed it overnight. The detoxification effect can reach 75%-95%.
2, boil method: the crushed cottonseed cake, add the appropriate amount of water to boil, often stirring, keep boiling for half an hour, after cooling can feed, detoxification effect of up to 75%.
3. Alkaline detoxification: The cottonseed cake is fed into a stirrer with a vapor sandwich and evenly sprayed with 2.5% sodium hydroxide solution. The weight ratio of sodium hydroxide solution to cottonseed cake is 0.92:1 so that the ph value is 10.5. about. The steam is heated in the interlayer of the stirrer so that the temperature is kept between 75-85°C, heating is continued for 10-30 minutes, and the mixture can be fed after cooling. For storage, drying reduces moisture to less than 7%.
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