Method and equipment for producing high-fat glycoprotein feed

Abstract

The invention provides a method and equipment for producing high-fat glycoprotein feed. Air is blown to a fin heater via an air blower; after being subjected to heat exchange, the air enters a roller dryer; after steam is condensed, the steam is conveyed to a condensate water pipeline via a pump-type drain valve; wet material is fed into the roller dryer via a scraper conveyor to instantly finishheat exchange; the material is driven by a shovel plate of the roller dryer to be rotated and suspended and is discharged from a rotary valve on the bottom of the roller dryer; after being screened, the material below a sieve enters a storage bin to be packaged; an unloading cyclone separator enters a bag filter against the stream for dedusting; the material on the sieve is returned back to the scraper conveyor; after hot air and small-particle materials in the roller dryer are separated by a tail gas cyclone separator, the small-particle materials are fed back to the scraper conveyor to serve as returned powder to enter the roller dryer; the hot air of the tail gas cyclone separator enters the bag filter for dedusting; and tail gas is discharged from an induced draft fan. According to the method and the equipment for producing high-fat glycoprotein feed, the problems that reducing sugar in the material is blackened due to being carbonized, and protein and sugar are subjected to Maillard brown reaction are effectively solved, the content of carbonized substance is lowered from 3% to 0.05%, and the Maillard reaction between protein and sugar is eliminated.

Description

technical field [0001] The invention discloses a method for producing high-fat glycoprotein feed and also provides equipment for producing high-fat glycoprotein feed, which belongs to the technical field of feed production. Background technique [0002] High-fat glycoprotein feed is a solid granule obtained by liquefying and saccharifying cornstarch at high temperature and filtering through a drum filter or a plate-and-frame filter. Its components include protein, sugar, fat, ash and other substances, protein and reduced Sugar is prone to Maillard brown reaction at high temperature, and sugar melts at high temperature and is easy to stick to the equipment. [0003] At present, the method of producing high-fat glycoprotein feed is mainly the mechanical drying method. The mechanical drying method mainly uses boiler flue gas as the heat source, and high-temperature flue gas is introduced into the rotary drying chamber, and the moisture of the material and the boiler flue gas ar...

AI Technical Summary

Problems solved by technology

The mechanical drying method is to pass the high-temperature boiler flue gas directly into the dryer and mix it with the crushed wet material. The moisture of the material flashes instantly, and the dried material is directly packaged. The dryer used is an inclined drying cylinder. Its disadvantages : The material has high ash content and many impurities, especially the content of some heavy metals exceeds the standard, which has a great food safety risk; some materials are heated by high-temperature flue gas and low-moisture materials are taken away by the fan, resulting in dust that cannot be recycled, affecting yield and air quality

The boiler flue gas of the boiler heat exchanger used leads to high-temperature denaturation of the material, resulting in Maillard brown reaction, and the color of the material does not meet the feed addition standard; part of the sugar is carbonized and coked, and the nutritional value is lost

When the hammer mill is used for crushing, since the wet material contains sugar, the material contacts the high-speed rotating hammer, and the surface of the wet material is caused by mechanical collision, friction, and shearing, which will cause the temperature of the material to rise, and the sugar will dissolve. The shaft of the grinder makes the grinder unable to work

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