Mechanism of batch feeding during briquetting by means of rolling press

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Authors:

K.A. Ziborov, Cand. Sci. (Tech.), State Higher Educational Institution “National Mining University”, Head of the Department of Basis of Constructing of Mechanisms and Machines, Dnipropetrovsk, Ukraine

G.K. Vanzha, Cand. Sci. (Tech.), State Higher Educational Institution “National Mining University”, Senior Lecturer of the Department of Basis of Constructing of Mechanisms and Machines, Dnipropetrovsk, Ukraine

K.V. Maksymenko, State Higher Educational Institution “National Mining University”, Postgraduate Student, Dnipropetrovsk, Ukraine

O.I. Prokopenko, Vilnohirsk Mining and Metallurgical Combine, Chief Mechanic, Vilnohirsk, Ukraine

Abstract:

The basic tool of technological equipment for the production of preforms is a roller press. Removable band perform the function of working surface as its term of service is considerably shorter than that of other details. The surface of bandage is covered with forming elements - cells of lenticular shape. The increase of the productivity of roller presses used for briquetting of wastes of mining and metallurgical complexes of Ukraine was the purpose of the work. The process of briquetting of small fraction wastes of mining-metallurgical industry was studied at Volnogorsk mining-metallurgical combine. Following basic factors influencing on the performance of roller presses and on quality of product were considered: batch feeding process from the load bunker into the area of pressing; nature of damage of forming cells of working surface by width; material the band is made of and its thermal treatment; physical and mechanical properties of small fraction of industrial wastes determining their behavior during briquetting. On the basis of the conducted researches it was determined that the central failure of roller presses is nonuniform batch feeding from the load bunker into the area of pressing. The failure results unequal damage of working surface by width and is the main cause of spoilage in production.

A new batch feeding mechanism has been developed. It allows controlling the level of batch in the area of pressing, equalizing the stream of batch, and providing filling of cavity of each cell uniformly. Due to compression of batch before it occurs on rolls the surface of its contact with band diminishes. Thus the nonuniform damage of cells decreases and the operability of roller presses increases.

References:

1. Грузглина С.Н. Исследование и совершенствование формующих элементов вальцовых брикетных прессов.: автореф. дис. на получение степени канд. техн. наук: спец. 05.02.08 “Технология машиностроения”/ Грузглина София Наумовна; Днепропетровский горный институт им. Артема – Днепропетровск: 24 с., включая обложку: ил. – Библиогр.: с. 21–22.

Gruzglina, S.N. “Study and improvement of forming elements of rolling briqueting machine”, Abstract of Cand. Sci. (Tech.) dissertation, Dept. Technology of Machine Building, Artem Dnepropetrovsk Mining Institute, Dnepropetrovsk, Ukraine, 24 p.

2. Исследование физико-механических свойств мелкофракционных промышленных отходов, определяющих их поведение при брикетировании / [В.А. Носков, В.И. Петренко, Б.Н. Маймур и др.] // Металлургическая и горнорудная промышленность. – Днепропетровск: 1998. – №4. – С. 104–107.

Noskov, V.A., Petrenko, V.I. and Maimur, B.N. (1998), “Study of physical and mechanical properties of small fraction industrial wastes influencing its briquetind”, Metallurgicheskaya i gornorudnaya promyshlennost, no.4, pp. 104–107.

3. Носков В.А. Исследование напряженного состояния и характера износа бандажей брикетировочных валковых прессов / В.А. Носков, К.В. Баюл // Металлургическая и горнорудная промышленность. – Днепропетровск: 2007. – №1. – С. 78–82.

Noskov, V.A. and Bayul, K.V. (2007), “Study of deflected mode and damage of bands of rolling briqueting machine”, Metallurgicheskaya i gornorudnaya promyshlennost, no.1, pp. 78–82.

4. Вальцьовий брикетний прес: А.с. №90634, МПК В30 В3/00. / К.А. Зіборов, Г.К. Ванжа, К.В. Максименко (Україна).– №200906824; Заявлено 30.06.2009; Публ. 11.05.2010, Бюл. №9; – 3 с.

Ziborov, K.A., Vanzha, G.K. and Maksimen-ko, Ye.V., Valtsovyi bryketnyi pres [rolling briqueting machine] Ukraine, А.s. №90634, MPK В30 В3/00. №200906824; Application date June 30, 2009, Publ. date May 11, 2010, Bulletin no.9, 3 p.

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