Beer filtering equipment and filtering method

Abstract

The invention provides beer filtering equipment and a filtering method. The beer filtering equipment comprises a tubular membrane assembly, and the tubular membrane assembly comprises a tube shell and a plurality of tubular membranes arranged in the tube shell; a first space is formed between the tube shell and the tubular membrane; a second space is formed in the tubular membrane; a feeding hole and a discharging hole are respectively formed in two ends of the tube shell; the feeding hole and the discharging hole are respectively communicated with the second space; the tube shell is also provided with a clear liquid outlet communicated with the first space; the tubular membrane is provided with a first end part relatively close to the discharge port and a second end part relatively close to the feed port; and the first ventilation device is arranged close to the first end part and is used for introducing gas into the second space from the first end part. In the filtering process, airflow generated by the first ventilation device collides with the beer stock solution in the second space, so that the liquid generates turbulent flow, formation of a filter cake is reduced, the thickness of the filter cake is reduced, and the beer filtering efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of beer filtration, in particular to a beer filtration device and a filtration method. Background technique [0002] At present, most breweries in my country use diatomite as a filter aid. After diatomite filter aid is used for beer filtration, because of its surface adsorption, it intercepts and absorbs yeast, protein and other organic substances in draft beer. The effect is reduced. Although it can be used repeatedly after being burned and regenerated, it can only be discarded after the maximum regeneration times of 5 times. For health and environmental reasons, diatomaceous earth to cross-flow filtration is the development trend of beer filtration technology. [0003] During the process of beer fermentation and precipitation, a large amount of carbon dioxide gas is produced and dissolved in the beer body. During cross-flow filtration of beer, due to the flow of liquid, changes in ambient tempera...

AI Technical Summary

Problems solved by technology

Although beer cross-flow filtration is a continuous operation, because beer contains a large amount of yeast, protein, colloid and other substances, it is easy to deposit on the surface of the membrane to form a thicker filter cake, and the flux decreases with time, resulting in the final Steady flux tends to be smaller

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