Paper washing is one of the important links in paper production, which is the process of cleaning, screening, crushing and processing raw pulp to make it into qualified pulp that can be used for paper making. The quality of pulp has a great impact on the quality, performance and use of paper, so the preparation and processing of pulp is very critical. Its main purpose is to remove impurities, contaminants and undispersed fibre bundles in the raw material, as well as air bubbles generated during the pulp production process, to ensure that the quality of the pulp and the stability of the quality of the finished paper. But in many factors will produce foam buildup problems, then together to understand how to use defoamer to solve the foam problem it.
In the papermaking pulp washing process, pulp agitation and repeated cleaning often cause bubbles in the pulp. When the pulp concentration is too high or viscosity is too high, it is easy to cause bubbles can not be ruptured in time and accumulate. Changes in temperature can also have an impact on the foaming of paper washing pulp. Typically, the amount of foaming of pulp increases at high temperatures. If the cleaning medium is not clean, impurities such as surfactants will be brought into the pulp, increasing the possibility of bubble generation.
Air bubbles generated in paper washing will make it more difficult to circulate, transport and handle the pulp, as well as increase energy consumption and wear and tear on the equipment. These will add to production costs. Air bubbles can make the surface of paper uneven, resulting in a reduction of its properties such as smoothness, uniformity and transparency. At the same time, air bubbles may also damage the paper's physical properties such as mechanical strength and abrasion resistance. As the air bubbles will adhere to the pipeline wall, forming dirt, affecting the smoothness of the pipeline, and also affecting the normal operation of production equipment and environmental protection facilities, thus polluting the production environment. Air bubbles accumulation will reduce the fluidity of pulp conveying and increase the complexity and difficulty of production. At the same time, air bubbles will affect the operation of the work of the field of vision and operational accuracy, may be a potential threat to the work.
Rickman defoamer is self-developed and produced with rapid defoaming ability of defoamer, to solve the shortcomings of the product diluted easy to break the emulsion bleaching oil, while the foam inhibition performance has also been greatly improved. It is a kind of general antifoaming agent with low price and good quality. Its quality ranks the domestic standard level, widely used in pulp and paper, waste water treatment, chemical industry and other occasions.
