TUNNEL-CLEANING HYDRAULIC MECHANICAL COMPLEX Russian patent published in 2011 - IPC E21C25/60 

FIELD: mining.

SUBSTANCE: tunnel-cleaning hydraulic mechanical complex includes powered support, light hydraulic monitor of low consumption for digging of mine openings, hydraulic drawing knife for second working, channel for rock mass transportation, oil-pumping station with drive and power module. The sections of powered support are equipped with flat beams along support width and shields that are hydraulically extended to both sides, the support foundation is equipped with pads that are hydraulically and horizontally extended to both sides. The pads at the beam from face side prevent roof falling to the face, and at the bottom - for groove mounting that is used for hydraulic drawing knife installation. At the other side shield and pad serve for support sections movement during second workings. Hydraulic monitor for driving works performance is installed in the middle of first support section ground and/or moves at section frames in the centre of support. Water from high-pressure pump is supplied to hydraulic monitor via flexible high-pressure pipeline, in front of the section there installed are guideways that discharge the pulp into groove. Cutting elements of hydraulic drawing knife have the shape of inverse truncated cone with foundation directed towards the face, the section is of elliptical shape. Cutting elements can rotate by 90° and are equipped with nozzles for forming thin hydraulic jets 3-5 mm in diameter and 30-50 mPa of pressure. Nozzles are arranged at 6-8 rows at cutting element at an angle of 15-60° to the rock for its cutting at drawing knife reciprocating movement along working face. Note that at forward movement one part of nozzles is engaged, at backwards movement - the other. Power module, installed in the last section, turns on high-pressure pump with capacity 3-5 times higher than coal breaking capacity, that works according to booster scheme, and flexible high-pressure hoses for water supply to hydraulic monitor or hydraulic drawing knife at preparation and second workings. Note that hydraulic monitor can work at coal extraction for washing.

EFFECT: combination of mine workings and rock extraction processes in complex.

3 dwg