DonNTU   Masters' portal

Abstract

Content

Introduction

In the coal mines of Ukraine in the last twenty years there is a chronic lagging behind the pace of revealing and prepare for workings in relation to the velocity podviganiya modern mechanized longwall faces at about 1.5–2.0 times. It is not possible to make timely preparation of inventories to excavation for pole system design often makes use continuous or combined system development with the direct course of lava, which reduces the productive capacity of the enterprise. The low rate of preparatory work, the high cost of maintaining the workings of deep mines, among other reasons, lead to an increase in the cost of Ukrainian coal in 2010–2012 domestic consumers to increase imports of Russian, Polish and Australian coal.

1. Actuality of the theme

In the 2007 GP DonUGI has developed high-speed technology of revealing the workings and prepare for a combine, which is implemented by types of complex equipment CCP [1]. These systems are designed for mechanization of breaking, loading and transportation of continuous rock mass from the bottom, as well as the mechanization of the construction of the anchor (1KPK), RAMS (2KPK) or mixed (3KPK) attachment with the attachment for holding arched openings, trapezoidal and rectangular (with horizontal and sloping roof) forms of the cross section from 11.0 to 32.0 m2. The complex includes roadheader equipped with a device for anchoring the construction, overburden conveyor PL800 (length 45 m), tunneling 1LTP800D conveyor, hopper, conveyor BK900, scraper excavator PSA, dust extraction unit UP360, maneuvering dolly and TM300 Multi mine hoist LSM [ 2–3].

Can be used in the complexes combines efficiency, CPU production Gorlovka Machine Engineering, KP21, KP25, KP200 production Kopeisk Machine Engineering, P110-01M P110-04 production Novokramatorsky Machine Engineering; KSP42 (43), KSP35 production Yasinovatskiy Machine Engineering. This combines a new technological level can effectively destroy the rock compressive strength of 100–120 MPa (f = 8–9) and can be equipped with one or two drilling rigs for the erection of roof bolting [4–6].

With appropriate training for the installation of the anchor spent four minutes, and to install "fan" of anchors in the cross section generation requires four permutations of the drilling mast with a spacer bar. Installation of anchors directly to the slaughter in the intact array after stope excavation will maintain the stability of the marginal rocks and reduce the cost of maintaining the operation of mines.

In our opinion, currently combine harvester technology and combined with anchor attachment can be effectively used where the conduct of mining is traditionally carried out by drilling and blasting technology. Consider, for example mine is mine October SE DUEK [7].

2. Expected results of the master's work

Based on the analysis of the host rocks, the depth of the work (over 1000 m), the status of mining, the ratio of the rate of clearing and preparation work and offers solutions to improve and maintain the workings of the gradient field:

Flow chart of the workings

Figure 1 – Flow chart of the workings

Cross section of slope formation

Figure 2 – Cross section of slope formation

Cross section of roadway bed

Figure 3 – Cross section of roadway bed

Conclusions

Thus, under the master's work will be developed following the requirements for harvesters in the complexes:

The optimum composition of the complex for a handheld mine:

The financial component of the Combine to improve technology at the same time anchoring may be provided with a change in government policy in the development of the coal industry and the advent of effective investor, such as DTEK.

References

  1. КД 12.01.201-98 Технологические схемы разработки пологих пластов на шахтах Украины. Изменение № 2 (Дополнение). Типовые технологические схемы скоростного проведения горизонтальных и наклонных до ±12o выработок проходческими комплексами. Первая редакция. – Донецк.: ГП ДонУГИ, 2007. – 19 с.
  2. Кошелев К.В. Охрана и ремонт горных выработок / Кошелев К.В., Петренко Ю.А., Новиков А.О. – М.: Недра, 1990. – 218 с.
  3. Негрей С.Г. Обоснование параметров механического отпора породам почвы выемочных выработок при отработке лав обратным ходом друк. Дисс. канд. техн. наук: 05.15.02. – Донецк, 2007. – 296 с.
  4. Борзых А.Ф. Содержание, ремонт и ликвидация выработок угольных шахт / Борзых А.Ф., Зюков Ю.Е., Княжев С.Н. – Алчевск: ДонГТУ, 2004. – 614 с.
  5. Заявка 57–119850, Япония, МКИ В 02 С 19/18, Е 04 С 23/08. Композиция для разрушения бетона, дорожного покрытия и т.п. / Нисихара Акио, Мива Мотому, Тада Сюити; Асахи дэнка коге к.к. № 56-5779 заявл. 16.01.81,. опубл. 26.07.82.
  6. Пшеничная, Е. Г. Обоснование рациональных параметров технологии добычи гранитных блоков с применением невзрывчатых разрушающих средств: Автореф. дис. канд. техн. наук: 25.00.22, 25.00.20 / Магнитог. гос. техн. ун-т им. Г.И. Носова, Магнитогорск, 2004, 20 с.
  7. Артамонов, С.М. Добыча блоков природного камня недробящим способом / С.М. Артамонов, С.Г. Агеев // Строительные материалы. 1985. – № 7. – С. 9–10.
  8. Шкуматов, О.М. Комбінована технологія розробки прохідницького вибою криволінійно-уступної форми / О.М. Шкуматов, В.А. Галоян // Наукові праці Донецького національного технічного університету. Серія: Гірничо-геологічна. 2009. – Вип. 10. – С. 70–73.
  9. Шевцов, М.Р. Стан технології та обґрунтування умов руйнування суцільного середовища гірських порід і будівельних конструкцій / М.Р. Шевцов, С.О. Калякин, І.В. Купенко, О.М. Шкуматов, О.І. Рубльова // Проблеми гірського тиску. 2009. – №17. – С. 226–249.
  10. Временная методика расчёта анкерной и анкерно-рамной (комбиниро-ванной) крепи. – Донецк.: Фонды ГП ДонУГИ, – 2007, в 2-х томах.