Renewable spent lye filter device and using method thereof

Abstract

The invention provides a renewable spent lye filter device and a using method thereof. The filter device comprises a shell mechanism, a filter element component and a screen filter, wherein the shell mechanism is provided with a filter chamber; the filter element component comprises a filter element; the screen filter is installed in a preset position of the filter chamber and faces the filter element at intervals, so that a first filtering area and a second filtering area are formed in the filter chamber; large-particle impurities are intercepted in the first filtering area by the screen filter; the filter element is arranged in the second filtering area; particulate impurities are filtered by the filter element. The filter device has the beneficial effects that the filter capacity and filter precision of the spent lye are effectively improved and the activity of the lye is restored through multistage filtration of the spent lye, thus achieving the aims of effectively purifying and recycling the spent lye in wash bottles.

Description

technical field [0001] The invention relates to the field of filtration and recovery, in particular to a regenerable filter device suitable for purification and recovery of waste caustic soda and its application method. Background technique [0002] With the rapid development of my country's national economy and the continuous improvement of residents' living standards, my country's alcohol industry has developed by leaps and bounds, especially the development of the beer industry has attracted attention. It has brought a series of resources and Environmental issues. In the process of beer production, a large amount of dirty waste lye will be produced after washing and recycling wine bottles and scrubbing pots. The alkali concentration of these waste lye is generally in the range of 1% to 2%, which is high temperature, high turbidity, and strong corrosion. If the special industrial wastewater is discharged directly, it will not only be a waste of resources, but also cause an...

AI Technical Summary

Problems solved by technology

Among them, due to the complex impurities in the spent lye, mechanical filtration cannot effectively intercept the fine suspended matter in the lye, its precision is difficult to meet the filtration requirements, and the failure rate is high during operation, and the lye before and after filtration is easy to mix Together, it is impossible to effectively purify the waste lye for reuse

However, the cost of the membrane filtration system is high, the consumables are fast, and need to be replaced once a year on average. The consumption of membrane filtration materials is almost close to the value of energy saving, and the investment cost is high. It is difficult for membrane filtration to achieve the filtration capacity, which cannot meet the actual production speed and need

Moreover, membrane filtration systems generally need to settle first and then filter, and the use of sedimentation tanks is still inevitable.

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