The purpose of the application: pumping sulphuric acid and waste products.
This company deals with the recovery of metal, plastic materials and other chemical substances for the subsequent regeneration.In a production site, there is a particular type of plant that has the aim of recovering the industrial and automotive batteries.
From the recovery cycle, will get the lead, plastics and chemicals, sulphuric acid, sodium sulfate. In one of the initial steps of the recycling process the sulphuric acid accumulated by the emptying of the batteries must be pumped. The acid is collected in tanks and is contaminated by solid substances of various types, crystal formations, particles of plastic, metallic powders, acid slurries. The result is a fluid with significant characteristics of chemical and mechanical aggression properties. The fluid must be pumped with surface pumps in order to limit any security issues, the experiences in the past with centrifugal pumps have been very disappointing, with great difficulty on priming, rapid eterioration of the sealing systems, very frequent impeller clogging, continuous machine stoppages. The company experimented the use of pneumatic diaphragm pumps, but also in this case, there were significant problems on priming and aspiration (uncertain due to wear of the valve system, in case of rupture of the membranes, it often happened that the contaminated fluid passing through the membrane deteriorated, to the air distribution device destroying it irreparably. In both cases, the centrifugal pumps and the pneumatic ones, required the complete removal of the pumps from plant for maintenance. Given that the past experiences were not certainly positive, it was not easy to convince the company to experiment a different solution with another pump not very conventional. At the end we were able to introduce into the production cycle a HCP 50 peristaltic pump in 2010. From that moment the company no longer had problems arising from the pumping of contaminated sulfuric acid. The peristaltic pump has an operating cost of three peristaltic hoses every year, without machine stops and substantial significant costs. In the course of 2016 another peristaltic pump HCP 50 has joined the existing one for further increase potential production .
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