PRINCIPLES OF RE-ENGINEERING METHODOLOGY FOR TECHNOLOGICAL PROCESS IN PROCESSING OF RAW MATERIAL COMPONENTS WHILE PRODUCING CEMENT AND SILICATE PRODUCTS

Grinding process is characterized by high energy consumption and low productivity. Nowadays efficiency of the ball mills applied for grinding is rather low. Only 3-6 % of the supplied power energy is used for material grinding. The rest part of the energy disappears in the form of heat, vibration and noise. So matter concerning reduction of energy consumption is of great importance.

Improvement of efficiency and quality of technological process in grinding of raw material components while producing construction materials is considered as one of priority-oriented targets of power- and resource saving in construction industry with the purpose to reduce energy consumption for grinding. Grinding efficiency at operating enterprises is reasonable to improve by modernization of the equipment and existing technological, management and other processes which are related to grinding of mineral raw material. In order to reduce grinding power consumption it is necessary to carry out a complex re-engineering of technological process in grinding of various materials which is based on usage of new modifications of grinding bodies, physical and chemical grinding aids, modern information technologies and industrial automation equipment. Application of modern information technologies and industrial automation equipment makes it possible to execute the grinding process with maximum achievable productivity for existing capacity due to automatic control and consideration of continuous changes in technological parameters. In addition to this such approach gives an opportunity to control processes in real time by immediate adjustments of technological equipment operational modes.

The paper considers an approach to the development of re-engineering methodology for technological process in grinding of raw material components while producing construction materials. The present state of technological grinding process is presented in the paper. The paper points out the necessity to modernize technological equipment used for grinding raw material components with the purpose to improve efficiency and quality, power- and resource saving. The possibility of using various grinding aids that permit to increase grinding productivity is shown in the paper. The paper studies an automation concept of the control system which used for grinding process of mineral raw material. A conceptual model for complexation of various methods grinding aids has been proposed in the paper. The paper presents methodological principles for simulation of technological process used for processing of mineral raw material while producing cement and silicate products. The parameters which are to be controlled and which are necessary for development of computer simulations of technological grinding process have been determined in the paper. The paper justifies an application of imitation simulation for creation of computer models. Methodology for imitation simulation of the technological process has been studied in the paper. The paper confirms the possibility to use analytical and probability methods. Imitation simulations of a grinding mill operation have been developed on the basis of experimental data and probability functions. The possibility of controlling technological process of raw material grinding has been demonstrated in the paper.

While implementing the proposed complex of organizational and technical recommendations it is possible to increase grinding productivity up to 30-50 % and significantly reduce и существенно снизить energy consumption for mineral raw material grinding during production of cement and silicate products. The combined reengineering methodology for grinding process including all the mentioned intensification methods substantially increases quality of final products and reduces its self-cost that will favour its compatibility and attractiveness for consumers.

1. Artamonov, A. V., Garkavi, M. S., Kamenschi- kov, E. V. (2008) Influence of Grinding Method on Construction aM Technical Cement Properties. Tsentrobezhnaia Tekhnika - Vysokie Tekhnologii. Materialy 3-i Mezhdunar. Nauch.-Tekhn. Konferentsii [Centrifugal Equipment - High Technologies. Proceedings of the 3rd International Scientific and Technical Conference]. Minsk, 55-57 (in Russian).

2. Busel, 1 A. (2012) Complex Modernization of Technological Process for Grinding of Raw Material Components While Producing Construction Materials. Pererabotka Mine- ral'nogo syr'ia. Innovatsionnye Tekhnologii i Oborudovanie. Materialy 4-i Mezhdunar. Nauch.-Tekhn. Konferentsii [Processing of Mineral Raw Material. Innovative Technologies and Equipment. Proceedings of the 4th International Scientific and Technical Conference]. Minsk, 5-8 (in Russian).

3. Kapsarov, A. G., Busel, I. A., Belov, I. A. (2005) Some Operational Characteristics of Prospective Grinding Bodies. Tsentrobezhnaia Tekhnika - Vysokie Tekhnologii. Materialy 2-iMezhdunar. Nauch.-Tekhn. Konferentsii [Centrifugal Equipment - High Technologies. Proceedings of the 2rd International Scientific and Technical Conference]. Minsk, 50-52 (in Russian).

4. Busel, 1. A. (2010) Theoretical Peculiarities and Practical Application Results of New Modifications of Grinding Bodies. Opyt Proizvodstva i Primeneniia Iacheistogo Betona Avtoklavnogo Tverdeniia. Materialy 6-i Mezhdunar. Nauch.- Prakt. Konferentsii [Experience in Production and Application of Cellular Autoclaved Concrete. Proceedings of the 6th International Scientific and Technical Conference]. Minsk, 81-82 (in Russian).

5. Kapsarov, A. G., Busel, I. A., Verbitskaya, T. L. (2008) Peculiar Features in Contacting of Convex and Cylindrical Grinding Bodies. Tsentrobezhnaia Tekhnika - Vysokie Tekhnologii. Materialy 3-i Mezhdunar. Nauch.-Tekhn. Konferentsii [Centrifugal Equipment - High Technologies. Proceedings of the 3rd International Scientific and Technical Conference]. Minsk, 107-109 (in Russian).

6. Krugliakov, P. M., Khaskova, T. N. (2005) Physical and Colloid Chemistry. Moscow, Vysshaya Shkola. 319 p. (in Russian).

7. Kapsarov, A. G., Busel, I. A., Yadlovsky, R. V. (2008) Method for Ultrasound Strengthening of Metal Product Surface. Tsentrobezhnaia Tekhnika - Vysokie Tekhnologii. Materialy 3-i Mezhdunar. Nauch.-Tekhn. Konferentsii [Centrifugal Equipment - High Technologies. Proceedings of the 3rd International Scientific and Technical Conference]. Minsk, 110-112 (in Russian).

8. Busel, I. A., Lebedev, V. A. (2012) Methodological Principles for Simulation of Technological Process Used for Grinding of Raw Material Components While Producing Construction Materials. Pererabotka Mineral'nogo Syr'ia. Inno- vatsionnye Tekhnologii i Oborudovanie. Materialy 4-i Mezh- dunar. Nauch.-Tekhn. Konferentsii [Processing of Mineral Raw Material. Innovative Technologies and Equipment. Proceedings of the 4th International Scientific and Technical Conference]. Minsk, 8-11 (in Russian).

9. Belous, 1 G. (2010) Modeli i Algoritmy Upravleniia Ob ’Ektami so Stokhasticheskim Mekhanizmom Formirovaniia Pokazatelei Kachestva Gotovoi Produktsii: na Primere Sha- rovoi Mel'nitsy Sukhogo Pomola Tsementa. Avtoref. Kand. Tekhn. Nauk [Models and Algorithms for Controlling Objects with Stochastic Mechanism for Quality Indices of Final Products: Grinding Mill for Cement Dry Milling Taken as an Example. Dr. tech. sci. diss.]. Volgograd, 20 p. (in Russian).

10. Busel, 1 A., Kapsarov, A. G. (2005) Adaptive Control of Technological Process for Mine Rock Grinding. Tsentrobezhnaia Tekhnika - Vysokie Tekhnologii. Materialy 2-i Mezhdunar. Nauch.-Tekhn. Konferentsii [Centrifugal Equipment - High Technologies. Proceedings of the 2rd International Scientific and Technical Conference]. Minsk, 19-22 (in Russian).

11. Moiseev, N. N. (1979) Mathematics is Setting up an Experiment. Moscow, Nauka. 224 p. (in Russian).

12. Maksimey, 1 V. (1985) Mathematical Simulation of Large Systems. Minsk, Vysshaya Shkola. 119 p. (in Russian).