Liquid recovery device and liquid recovery method by using same

Abstract

The invention relates to a liquid recovery device which comprises a collection box, a recovery pump, a liquid storage bottle and a pipeline sequentially communicated with the collection box, the recovery pump and the liquid storage bottle, wherein in a recovery process, the recovery pump is periodically opened and closed. When the liquid recovery device is used for recovering liquid, the recovery rate and the quality of recovery liquid can be guaranteed. The invention also provides a liquid recovery method by using the recovery device.

Description

technical field [0001] The present invention relates to a recovery device and a recovery method using the recovery device, in particular to a liquid recovery device and a liquid recovery method using the recovery device. Background technique [0002] In the process of painting and cleaning, only part of the spray liquid is sprayed on the workpiece, and the rest of the spray liquid that is not sprayed on the workpiece will be sprayed to other parts, causing waste of spray liquid and increasing production costs. At the same time, the wasted spray liquid also causes environmental pollution. Environmental pollution and a large amount of waste of resources are an important factor hindering the development of today's society. In order to ensure the sustainable development of society, the promotion of conservation and environmental protection is listed as the theme of today's society. Therefore, whether it is from cost saving or environmental protection, or even From the perspecti...

AI Technical Summary

Problems solved by technology

After analysis, the volatilization of the solvent is an important factor affecting the viscosity of the spray liquid. In the scheme of using the recovery pump, the recovery pump 33 is in the normal open state. When the recovery liquid 37 in the collection box 32 is extracted, a large amount of air and the recovery liquid will be 37 are pumped into the liquid storage bottle 34 together. During the extraction process, a mixture of air and recovery liquid 37 is formed, so that the recovery liquid 37 is in full contact with the air, and a large amount of solvent volatilizes, resulting in an increase in the viscosity of the recovery liquid 37

And when a large amount of gas is sucked into the liquid storage bottle 34, it contacts with the recovery liquid 37 in the liquid storage bottle 34 for a long time, so that the recovery liquid 37 in the liquid storage bottle 34 not only continues to volatilize, but also easily oxidizes and deteriorates, causing recovery to The recovery liquid 37 cannot be reused, or it can be reused only after more complex adjustments, which increases the production cost and causes environmental pollution and waste of resources.

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