13

2020

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05

Green Coating Equipment, A Contribution To More Energy Efficiency And Resource Saving In Automobile Painting Line

Author:

Chuangzhi Coating


Efficiency and sustainability, these are the great trends of our time. And rightly so. Natural resources are restricted and rapidly increasing energy demand, in particular in the growth markets of the newly industrialized countries, pose great challenges for national economies. In recent times, vehicles have been rated according to their CO2 output rather than their fuel consumption. In order to lower this, new drive concepts are developed that go as far as electro mobility. In vehicle manufacturing as well, solutions are in demand that lower energy consumption and thus the CO2 emissions and handle available resources carefully. With its Green coating equipment concept, our Chuangzhi Coating provides an integrated solution package for maximum energy and resource efficiency in automobile painting line.

 

Every painting line begins with the pretreatment and the following dip-coating. Here the rotation procedure has prevailed. For different requirements on system capacity and flexibility, in total three systems are available. With the our technology, especially space-saving layouts can be realized. The missing inlet and outlet slopes, however, do not only shorten the installation length, but also reduce the tank volumes. This is combined with lower material and energy costs, the latter are about thirty-five percent lower compared with the conventional shuttle.
State of the art is a supply and exhaust air operation in the painting line. A majority of the energy that is used in a coating equipment is needed for the necessary air preparation, indeed just less than sixty percent. Recirculation of the booth air would save a considerable part of this energy. A clearly improved efficiency of the overspray scrubbing as compared with the wet scrubber and no humidity increase as it occurs during the wet washout is a pre-condition for that. Our technology is based on the principle of dry scrubbing with the aid of limestone powder as a binding agent for the paint particles. The saturated limestone powder is automatically replaced by fresh powder depending on the degree of saturation and can be used in other processes of manufacture in an untreated state. In other words: with this new technology there are no paint sludge accumulations that have to be disposed of as hazardous waste, no waste water is to be treated, no chemicals are necessary for coagulation. If one considers the energy balance of the entire coating equipment system, thirty percent of the total energy can be saved by the use of dry scrubbing, related to the painting booth the saving is sixty percent.


The advantages only briefly outlined here, already convinced many customers worldwide. Since the introduction of this technology, Chuangzhi Coating has already received orders for ten (10) lines.

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