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Water curtain spray booth for painting workshops over - spray paint mist generated serious environmental pollution , waste of resources , and over - painting fog collect the current situation , this choice of three acrylic amino baking paint over spray paint mist collection and regeneration . Over - spray paint the fog recycled key : choose the circulating water additives , both the paint residue gathered floating facilitate salvage , without undermining the structure of the paint residue affect regeneration ; collect the paint residue renewable processing key is to paint slag place and in addition the water can not occur during the crosslinking and curing . By beaker stirring and water curtain spray collection experiments, filter out the paint mist flocculant optimize the draw paint mist collection process : maintain the pH in the 8.0-8.5 adjusted with sodium silicate circulating water , painting go to the circulating water PAC solution , adding 0.5% to a concentration of 40mg / L, spraying gap added alkalization with the the PAC same volume of 0.1% PAM adding half of the initial flocculant dosage , when the collection efficiency decreased , until the collection of the effect decreased again , it is recommended to replace the circulating water . Paint slag placed in different temperatures regularly visited by its solubility, to draw paint slag schedule stored at different temperatures , the results indicate that the collected paint residue must be placed in a low temperature ( preferably below 30 ° C ) , dark place, and must occur in the paint residue before curing , a regeneration treatment , or paint slag crosslinked into the polymer structure of the mesh , not dissolve regeneration . Regeneration must first collect paint residue in addition to water , this article is a reasonable addition to water : centrifugal ventilation drying , extraction layered approach , where the centrifugal ventilation drying method applies to a wide range of general BAKING apply ; extraction hierarchical method only applicable paint of the film-forming material density than water . In addition to the water after the paint residue with an appropriate solvent , additives reconcile recycled paint . Infrared spectroscopy , electrochemical methods to test , test results show that the physical and mechanical properties : regeneration paint structure , physical and mechanical properties , and the original paint is less , you can reuse .
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