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Cleaning method of cone-shaped tank

A conical tank and cleaning agent technology, applied in the direction of cleaning methods and utensils, chemical instruments and methods, biochemical equipment and methods, etc., can solve the problems of not being able to eliminate hidden dangers of microorganisms and easy to hide microorganisms

Active Publication Date: 2014-07-16
广东燕京啤酒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to design limitations, there is a cleaning dead angle at the bottom of the conical tank, which is easy to hide microorganisms, so that the cleaning process cannot eliminate the hidden dangers of microorganisms.

Method used

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  • Cleaning method of cone-shaped tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Replace the CO in the fermenter for beer production with nitrogen 2 Gas and nitrogen are filled into the fermenter with a valve opening of 1 / 4, the outlet valve of the small cone bottom of the fermenter is fully opened, and the replacement time is 180 minutes;

[0031] (2), rinse the inside of the fermenter with normal temperature water for 10 minutes;

[0032] (3) Rinse the inside of the fermenter with 45-55°C and 1.8% edible-grade caustic soda aqueous solution for 40 minutes, and recycle the edible-grade caustic soda aqueous solution through the reflux pump, when the carbonate content in the edible-grade caustic soda aqueous solution≥ 1.5%, the can of food-grade caustic soda aqueous solution is used as spent caustic soda;

[0033] (4), adopt the CIP cleaning system to squeeze the 45~55 ℃ of fermenter volume 0.2 volumes, concentration is 1.8% food grade caustic soda aqueous solution into the small cone bottom of fermenter, soak for 30min;

[0034] (5), the edible...

Embodiment 2

[0040] (1) Replace the CO in the fermenter for beer production with nitrogen 2 Gas and nitrogen are filled into the fermenter with a valve opening of 1 / 4, the outlet valve of the small cone bottom of the fermenter is fully opened, and the replacement time is 180 minutes;

[0041] (2), rinse the inside of the fermenter with normal temperature water for 10 minutes;

[0042] (3) Rinse the inside of the fermenter with 45-55°C and 1.8% edible-grade caustic soda aqueous solution for 40 minutes, and recycle the edible-grade caustic soda aqueous solution through the reflux pump, when the carbonate content in the edible-grade caustic soda aqueous solution≥ 1.5%, the can of food-grade caustic soda aqueous solution is used as spent caustic soda;

[0043] (4), adopt the CIP cleaning system to squeeze the edible grade caustic soda aqueous solution with a volume of 0.2% of the volume of the fermenter above 85°C and a concentration of 1.8% into the small cone bottom of the fermenter, and so...

Embodiment 3

[0054] (1) Use compressed air to replace CO in sake tanks for beer production 2 Gas, compressed air is filled into the valve opening of the sake tank to 1 / 5, the outlet valve of the small cone bottom of the sake tank is fully opened, and the replacement time is 240 minutes;

[0055] (2) Rinse the inside of the sake tank with clean water at room temperature for 15 minutes;

[0056](3) Rinse the interior of the sake tank with 45-55°C and 4.5% edible-grade caustic soda aqueous solution for 60 minutes, and recover the edible-grade caustic soda aqueous solution through the reflux pump. When the carbonate content in the edible-grade caustic soda aqueous solution is ≥ 1.5%, the can of food-grade caustic soda aqueous solution is used as spent caustic soda;

[0057] (4), adopt the CIP cleaning system to squeeze the edible-grade caustic soda aqueous solution with a volume of 0.5% of the volume of the sake tank above 85°C and a concentration of 4.5% into the small cone bottom of the sak...

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Abstract

The invention discloses a cleaning method of a cone-shaped tank. The cleaning method includes the steps that compressed air is used for replacing CO2 gas in the cone-shaped tank, and the inner portion of the cone-shaped tank is washed through normal-temperature clear water; alkaline cleaner is used for washing the inner portion of the cone-shaped tank; the alkaline cleaner with the temperature being over 85 DEG C and the concentration being 1.8-4.5 percent is pumped into a small cone bottom of the cone-shaped tank to be soaked; the alkaline cleaner left after soaking is conducted is recovered, and 45-55 DEG C warm water is used for washing residual alkali in the cone-shaped tank; acidic cleaner is used for washing the inner portion of the cone-shaped tank; acid is recovered, and bacterium-free water is used for washing residual acid; disinfector is used for washing the inner portion of the cone-shaped tank; finally, bacterium-free water is pumped into the cone-shaped tank to wash the inner portion of the cone-shaped tank. According to the method, an existing washing technology is improved, and finally, the technology is adjusted into the technology that cone base alkali soaking is conducted before a full set of washing technology is implemented. The cleaning method of the cone-shaped tank is used for cleaning the cone-shaped tank, and good control of the cleaning method is verified through an ATP fluorescence detection method in a comparison mode after tank disassembly.

Description

Technical field: [0001] The invention belongs to the cleaning field of food and beverage production equipment, and in particular relates to a cleaning method for a conical tank body. Background technique: [0002] The cleaning method in the beer industry and the beverage industry is mostly CIP (Cleaning-In-Place) automatic cleaning, and the production tanks and storage tanks are mostly conical. Set the cleaning process to be carried out, pour the cleaning liquid in each cleaning tank into the conical tanks to be used (such as: fermentation tanks, sake tanks, buffer tanks, etc.) to keep the conical tanks clean and free from microorganisms controlling. Due to design limitations, there is a cleaning dead angle at the bottom of the conical tank, which is easy to hide microorganisms, so that the cleaning process cannot eliminate the hidden dangers of microorganisms. Invention content: [0003] The object of the present invention is to provide a cleaning method for the conical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/28B08B9/46A61L2/18C12Q1/66
CPCA61L2/186B08B9/28B08B9/46C12Q1/66
Inventor 刘荣俞国海丘冬银
Owner 广东燕京啤酒有限公司