Lining Application by Means of Guniting (Using Machine TOR-1)

The development of construction technology fostered the need for the research. The authors applied the following general scientific methods: analysis, synthesis, comparison, generalization, etc. The article considers the issues of lining application from the viewpoint of the material engineering and technology. The authors reviewed modern approaches to the application of various materials and defined the prospects for the development of new materials to apply linings. The research relevance is defined by the need to make optimal economic investments into lining organization as well as by the need to improve technical means considering the conditions the available regional materials are used in. Applying repair and refractory masses and mixes on the various surfaces by guniting is the most convenient way to make a high-quality lining. The article considers the equipment for dry mix guniting. It analyzes the key advantages of guniting machines. The practical part describes the projected universal shotcrete machine for lining on various surfaces, taking into account the conditions of use of available regional materials. The possibility to adjust machine disc squeezing allows applying the mixes of various fraction sizes. The developed version of the guniting machine Tor-1 has the following advantages: high performance, possibility to work with extra fine fractions (which is even more relevant for thermal generating units). It is suggested producing the most wearable discs of alloyed, high-chromium steel 95KH18. The authors propose using the gunned mass TMTsV produced by Ogneupor, LLC (Magnitogorsk, Russia) as a preferential material for shocreting.