RU2451791C1 - Tunnelling exploding-loading complex - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: invention relates to mining. A complex comprises a receiving wedge part with a loading module, a hopper for exploding and loading, an unloading scraper part, a self-movement mechanism, a pump station, a control panel, a hydraulic manipulator with a drilling machine on a portal trolley moving along a loader column, a safety support made of safety shields and stands, moving along guides at hopper boards with the help of sliding carriages. At the same time safety shields have two sections, the front section is hingedly attached to the rear section, and is made as capable of turning down by means of two hydraulic cylinders, arranged under safety shields, at the same time the front section is lowered before blasting and lifted afterwards from a panel of complex control.

EFFECT: improved design of a tunnelling exploding-loading complex.

4 dwg

Description

The invention relates to mining. It is intended for mechanization of horizontal and slightly inclined workings using the drilling and blasting method, reducing labor intensity and increasing the productivity of tunneling. The proposed complex with a rotary safety support allows to mechanize the processes of cleaning the destroyed rock mass, drilling holes in the face and under the anchors, installing anchors, eliminates the need to divert it from the face to a safe distance before blasting and erecting a temporary protective support in the bottomhole zone, provides protection for the complex’s equipment from the action of the explosion.

Known tunneling complex for mining hard rock "Tunneling complex explosive and rolling (PKVN-04)" [1]. The equipment of the complex has the following composition: receiving wedge part with loading module, hopper for explosive loading, unloading scraper part (conveyor), self-moving mechanism, pump station, control unit and control panel, hydraulic manipulator with a drilling machine on a special gantry truck, which moves at the reloader head special mechanism.

Disadvantages include the lack of safety support; the implementation of the process of self-movement with the help of hydraulic cylinders and a chain device attached to anchors fixed to the mine working near the bottom of the face.

The closest in constructive structure is the "Explosive-boring tunnel complex (PKVN-2008)." The complex under consideration includes a wedge receiving part with a loading module, an explosive loading hopper, an unloading scraper part (conveyor), a self-moving mechanism, a pump station, a control unit and a control panel, a hydraulic manipulator with a drilling machine on a special gantry truck, which is moved by special gear , safety support, consisting of racks and safety shields and moving along the guides on the sides of the hopper on special running carriages. The operations of loading and drilling holes are carried out in the bottomhole zone under the protection of the protective lining. Drilling holes for anchors is carried out using drilling equipment through special holes in the safety support.

The disadvantages of the complex under consideration include the lack of protective equipment against explosion and flying pieces of rock, since only the receiving wedge with a loading module and the hopper for explosion are intended for operation in explosive mode. The rest of the equipment in the explosion may be damaged. First of all, this is a drilling machine, which during the explosion is located in the rear of the hopper and does not have the ability to divert to a greater distance.

The aim of the present invention is to improve the design of the tunneling complex to eliminate these disadvantages, i.e. development of a safety device that effectively protects the drilling equipment of the complex from the blast wave and flying pieces of rock mass.

According to the invention, the goal is achieved in that a tunneling and blasting complex, including a receiving wedge with a loading module, a hopper for blasting, an unloading scraper, a self-moving mechanism, a pumping station, a control panel, a hydraulic manipulator with a drilling machine on a gantry truck, which moves at a stand a reloader with a special mechanism, equipped with a safety support, moving along the guides on the sides of the hopper and consisting of racks and a fuse s panels, which have two sections. The front section is pivotally attached to the rear section and is rotatable downward by means of two hydraulic cylinders located under the safety shields and controlled from the control panel of the complex, while the front sections in the lower position protect the drilling equipment from explosion.

The essence of the proposal is illustrated by drawings, where

in figure 1. presents a general view of the complex after blasting;

figure 2. safety support with a raised front section is presented (side view);

figure 3. safety support with front section down (side view);

figure 4. the location of the equipment of the complex with the raised front sections of the safety support (front view) is presented.

According to the invention, the complex consists of a loading module 1, a hopper for blasting 2, an unloading scraper part 3, a self-moving mechanism 4, a pump station 5, a control panel 6, a hydraulic manipulator with a drilling machine 7 on a gantry truck 8, moving along the wedge of the wedge reloader 9, safety lining, including racks 10 and safety shields, consisting of the front section 11 and the rear section 12. The safety lining moves along the guides 13 on the sides 14 of the bunker for blasting 2 by means of the carriage of the carriage 15. The front sections 11 of the safety shields are attached to the rear sections 12 by means of articulated joints 16. The front sections are raised and held in horizontal position and the front sections are lowered by means of hydraulic cylinders 17. The front sections are controlled from the control panel of the 6 complex.

The operating procedure of the tunneling complex.

Before blasting, the complex is located at the bottom of the face. The drilling equipment 7 is diverted to the tail of the blasting hopper 2. The safety support also moves to the tail of the blasting hopper 2 and is located above the drilling equipment 7. The hydraulic cylinders 17 are folded and lower the front sections 11 of the safety shields that protect the drilling equipment 7 from flying pieces rock mass during the explosion. After blasting the holes and ventilating the mine, the main part of the stack is unloaded by the wedge reloader 9 to the unloading scraper part 3. The rock mass that has fallen on the sides of the bunker for the explosive dump 2 is dumped by the hydraulic cylinders of the bunker sides onto the wedge reloader 9 and also fed to the scraper part 3 Before starting to raise the sides of the bunker for the explosive filling 2, the hydraulic cylinders 17 move apart and raise the front sections 11 of the safety support. As the stack is unloaded, the complex is moved to the bottom of the face by means of a self-moving mechanism 4. At the same time, the remaining part of the stack goes to the loading module 1 and transported to the scraper part 3. At the end of the unloading of the entire rock mass, the drilling equipment 7 moves under the protection of the protective lining at the reloader head. 9 to the face for drilling holes for anchors, and then along the face. The safety support moves along the sides 14 of the explosive hopper 2 along the guides 13 using the running carriages 15. After drilling the face and securing the mine, the work cycle is repeated.

Information sources

1. Khazanovich G.Sh., Lyashenko Yu.M., Nikitin E.V., Kornichenko A.S. Explosive and rolling tunnel complex with a wedge-scraping reloader and a drilling rig (PKVN-04) / Izv. Universities Sev. -Kavk. region. Tech. Sciences. Specialist. Issue "Problems of Mining Electromechanics". - 2005. - P.58-62.

2. Khazanovich G.Sh., Voronova E.Yu. Improvement of a tunnel complex for mining hard rock using explosive-rolling technologies / Mining equipment and electromechanics. - 2009. - No. 7. - C.2-4.

Claims (1)

A tunneling and blasting complex, including a receiving wedge with a loading module, a hopper for blasting, an unloading scraper, a self-moving mechanism, a pump station, a control panel, a hydraulic manipulator with a boring machine on a gantry truck moving around the reloader head, a safety support, consisting of safety shields and racks, moving along the guides on the sides of the hopper with the help of carriage, characterized in that the safety boards have two sections, ne the middle section is pivotally attached to the rear section and can be rotated downwards by two hydraulic cylinders located under the safety shields, while lowering the front section before blasting and lifting it after blasting is carried out from the control panel of the complex.

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