I. Current status of drinking water in beer wide filling workshop
Second, at present, most medium and small breweries use water in the irrigation workshops, basically without softening treatment, and directly use well water, spring water or tap water. Most of the water has a temporary hardness of higher hardness and a lower permanent hardness. If such water is used for a long period of time, it will cause thick scale deposits on the inner wall of the equipment, the inner wall of the pipeline, and the like. The water used in the filling workshop of our factory is the deep well water of our factory. After testing, the temporary hardness of this well water is 4.2, and the temporary hardness is higher.
Third, the introduction of scale on the inner wall of the bottle washer:
The chemical composition of the scale on the inside of the bottle washer is basically the reaction of calcium, magnesium carbonate and hydroxide hydrochloric acid with calcium, magnesium carbonate and hydroxide in the scale to form chlorides which are easily soluble in water and C0z gas. At the same time, hydrochloric acid can also dissolve some of the oxides on the metal surface of the equipment, thereby destroying the connection between the metal and the scale, and causing the scale to fall off. In view of the corrosive effect of hydrochloric acid on metals, in the pickling solution, a small amount of corrosion inhibitor must be added to adsorb on the metal surface to passivate the metal surface to form a very thin protective film, and the metal and acid are mutually Isolated, thereby slowing the corrosion of the acid on the metal.
Fourth, the actual operation process of the pulp washing process
l, the required drugs
Industrial hydrochloric acid (30), formaldehyde (chemically pure), aniline (chemically pure), concentrated hydrochloric acid (chemically pure).
2, the necessary equipment;
Rubber gloves, protective glasses, water boots and other protective equipment.
3 ratio of various drugs:
The amount of corrosion inhibitor required per 100 kg of pickling solution is the temperature of the pickling solution.
Formaldehyde aniline concentrated hydrochloric acid hot water (7O ~ 9O ° C)
<60°C 2 9 1kg 0.1 kg 0.1 kg 2 kg
V. Conclusion
Since the temporary hardness of the water is too high, the filling workshop uses the softened water for a long time, which tends to cause fouling inside the bottle washing machine, and this can be used for pickling treatment.
Second, at present, most medium and small breweries use water in the irrigation workshops, basically without softening treatment, and directly use well water, spring water or tap water. Most of the water has a temporary hardness of higher hardness and a lower permanent hardness. If such water is used for a long period of time, it will cause thick scale deposits on the inner wall of the equipment, the inner wall of the pipeline, and the like. The water used in the filling workshop of our factory is the deep well water of our factory. After testing, the temporary hardness of this well water is 4.2, and the temporary hardness is higher.
Third, the introduction of scale on the inner wall of the bottle washer:
The chemical composition of the scale on the inside of the bottle washer is basically the reaction of calcium, magnesium carbonate and hydroxide hydrochloric acid with calcium, magnesium carbonate and hydroxide in the scale to form chlorides which are easily soluble in water and C0z gas. At the same time, hydrochloric acid can also dissolve some of the oxides on the metal surface of the equipment, thereby destroying the connection between the metal and the scale, and causing the scale to fall off. In view of the corrosive effect of hydrochloric acid on metals, in the pickling solution, a small amount of corrosion inhibitor must be added to adsorb on the metal surface to passivate the metal surface to form a very thin protective film, and the metal and acid are mutually Isolated, thereby slowing the corrosion of the acid on the metal.
Fourth, the actual operation process of the pulp washing process
l, the required drugs
Industrial hydrochloric acid (30), formaldehyde (chemically pure), aniline (chemically pure), concentrated hydrochloric acid (chemically pure).
2, the necessary equipment;
Rubber gloves, protective glasses, water boots and other protective equipment.
3 ratio of various drugs:
The amount of corrosion inhibitor required per 100 kg of pickling solution is the temperature of the pickling solution.
Formaldehyde aniline concentrated hydrochloric acid hot water (7O ~ 9O ° C)
<60°C 2 9 1kg 0.1 kg 0.1 kg 2 kg
V. Conclusion
Since the temporary hardness of the water is too high, the filling workshop uses the softened water for a long time, which tends to cause fouling inside the bottle washing machine, and this can be used for pickling treatment.
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