RU2151873C1 - Railway mobile power plant-gantry and method of its movement - Google Patents

Abstract

FIELD: mining industry, underground working of coal stratified deposits. SUBSTANCE: invention is aimed at simplification of design of railway mobile power plant-gantry, at conducting of operations for its travel, at reduction of its length to size of guarding pillar near haulage drift, at usage of normal belt conveyers of high productivity in sectional drift and at total mechanization of movement of drift equipment without auxiliary and labor-consuming operations during production shift. Railway mobile power plant-gantry includes power units installed on wheeled cars, pump stations, magnetic station, sprinkling drive, auxiliary equipment and flight conveyer-reloader arranged in parallel to railway mobile power plant-gantry whose boom part is positioned above drift conveyer. Each wheeled car is manufactured in the form of T-shaped frame with two double-flange wheels under vertical part of frame and attachment members, for example, pins in upper horizontal part of frame which are interlinked with the aid of longitudinal tubular girders with formation of common and continuous horizontal surface lifted clear of ground for placement of boom part of flight conveyer-reloader mounted on face side of drift and power units mounted on side opposite to breakage face, close to drift passageway. Narrow gauge way for wheeled cars is displaced from face side of drift towards passageway to free space on ground under boom part of shortened conveyer-reloader for location of line part of first sectional drift conveyer on ground. For movement of railway mobile power plant there are two sectional guides periodically laid on ground in path of its travel and ram whose one end is coupled to last wheeled car and whose second end is tied to head of flight conveyer. Process of movement of railway mobile power plant-gantry towards advance of breakage face includes movement of sections of support pulled to flight to pick up roof after removal of belt with coal, stopping of flight and outward thrust of sections of support, switching on of ram of movement of railway mobile power plant-gantry, pushing of wheeled cars of railway mobile power plant-gantry away from fixed flight and advance of flight on to face. All power units are moved simultaneously with flight conveyer-reloader on same wheeled cars, boom part of flight conveyer-reloader is moved above drift flight conveyer mounted between flight conveyer-reloader and drift belt conveyer whose length is reduced after complete run-over of flight conveyer-reloader on to drift flight conveyer. EFFECT: simplified design of railway mobile power plant-gantry and reduced length of it. 2 cl, 4 dwg

Description

 The invention relates to the mining industry and is intended for underground mining of coal seams.

 Currently, the predominant technology for the development of the reservoir is the use of treatment equipment in the form of a complex, including a downhole treatment complex with a support, a combine and a downhole conveyor and drift equipment, including an electric train, a reloader and drift conveyors (scraper or belt).

 There is a known energy train-loader of the A-3 unit, consisting of a scraper conveyor, the sections of which are divided into three parts in height: the loading part in the lava zone, the inclined part and the boom part, based on wheel portals connected to the unit and running onto the local conveyor belt conveyor type (Development of technology for underground mining of coal, potash and manganese ores. M: NEDRA, 1985, p. 172, Fig. 67, as well as “AK-3.28.00.000 Material Handler”, Giprouglemash, Arch. N 2450).

 The disadvantage of this power train-loader is the fact that all power units, which also rely on these portals and naturally move on wheels, occupy a significant part of the length, about 20 meters, along the length of the reloader, which leads to the lengthening of the entire reloader, since the length Effective run over to a conveyor belt cannot be less than 25 m with a conveyor belt with 50 m lengths of tape. As a result of this drawback, it is impossible to cut the last 60 m of movement when finalizing the excavation column. melt without dismantling labor-intensive operations.

 A less close analogue of the reloader is known, accepted for serial production, which must be taken into account in view of its seriality - it is a PTK1 scraper type reloader designed for receiving and reloading coal from the lava conveyor to the tail of the 1LT80 telescopic conveyor belt.

 This material handler has a small boom part with one-way drive, tilted and linear pans and an end head. The boom part rests on the tail part, along with the linear part it moves directly along the soil together with the energy train, occupying a total length of 51 m ("Equipment for sewage and tunneling works." Catalog. M. TsNIEIugol, 1986, p. 165, Fig. 173).

 There is a known improvement of this material handler abroad under the name "Matilda", characterized by the possibility of a slight collision (approx. 6 meters) of the boom part of the material handler on the tail head of the telescopic conveyor belt.

 The disadvantages of this analogue, in addition to the arrangement of the power train and the boom part one after another in series, as in the above sources, there is a lack of location and movement of all equipment directly through the soil, without means of mechanized movement and, in addition, an increase in the price and complexity of equipment associated with the need have a telescopic belt conveyor and various types of special machines of the Matilda type, LT type, a normal scraper conveyor type and a normal belt type Nveyera on a precinct drift.

 Possibilities for finalizing the excavation column to the recoil drift (to the security pillar of 20-30 m) are also not available.

 The closest known one is the power train loader (RF patent N 2114996, class E 21 D 23/00, publ. 07/10/1998), which includes power train units containing pump stations, a magnetic station, irrigation drive, auxiliary equipment mounted on wheeled carts and a scraper conveyor loader located parallel to the energy train, the boom part of which is located above the drift conveyor.

 There is also a method of moving an energy train and a reloader in the direction of moving the working face (USSR patent N 1578357, class E 21 D 23/00, publ. 07/15/1990), in which first the roof support sections are pulled, pulled to the stand to pick up the roof after excavation coal strips, then, with a locked stand and open sections, include a power train moving jack, which ensures that the power train carts are pushed away from the fixed stand, then the stand is moved to the bottom to ensure the next extraction and overload cycle mined coal from the lava conveyor to the drift.

 The closest known method is to move the power train-loader in the direction of moving the working face (RF patent N 2114996), including the movement of the support sections, pulled to the stand to pick up the roof after removing the coal strip, locking the stand and the strut of the support sections, turning on the jack of the power train- reloader and pushing the trolley of the energy train from a fixed stav, moving the stav to the face.

 However, well-known technical solutions also do not provide compact equipment, simplify management, increase productivity and reduce the complexity of the work.

 The objective of the invention is to simplify the design of the power train-loader and to carry out work on its movement, reducing its length to the size of the guard pillar at the haulage drift and the use of normal high-performance belt conveyors on the site drift, as well as the complete mechanization of the movement of drift equipment without auxiliary and labor-intensive operations in mining shift.

 To solve the tasks in an energy train-reloader, including power units of an energy train installed on wheeled trolleys, containing pumping stations, a magnetic station, an irrigation drive, auxiliary equipment and a scraper conveyor-loader located parallel to the energy train, the boom part of which is located above the drift conveyor, each wheeled trolley is made in the form of a T-frame with two double-flange wheels at the bottom of the vertical part of the frame and connecting elements, such as pins and, on the upper horizontal part of the frame, by which they are interconnected using longitudinal tubular girders with the formation of a common and continuous horizontal surface raised from the soil to accommodate the boom part of the scraper conveyor - a reloader mounted on the bottom side of the drift, and power units mounted on the bottom side drift, and power units mounted on the opposite side of the face, near the drift stroke, while the narrow-gauge track for wheeled trolleys is offset from the bottom side the river in the direction of the walker, in order to free up space on the soil under the boom part of the shortened conveyor conveyor for placing on the soil the linear part of the first sectional conveyor belt, made shortened and scraper, and to move the power train - the reloader, it has two tubular sectional guides periodically laid on soil along the course of the movement, and a movement jack, one end of which is connected to the last wheeled trolley, and the other to the head of the head of the main conveyor.

 To solve the same problems, we also propose a method of moving the energy train-loader in the direction of moving the working face, including moving the lining sections, pulled to the stand to pick up the roof after removing the coal strip, locking the stand and the spacer of the lining sections, turning on the jack of the energy train-loading crane and pushing the carts power train-loader from a fixed stav, moving the stav to the face, in which all power units are moved simultaneously with the sk mounted on the same wheeled carts with a reloading conveyor-reloader, the boom part of which moves above the scraper conveyor located below it, installed between the scraper conveyor-reloader and the drift conveyor belt, the length of which is reduced after the scraper conveyor reloader is fully run over the drift conveyor belt.

 The invention is illustrated by drawings, where in Fig.1 shows a General view of the energy train-loader, in Fig. 2 is a plan view, in FIG. 3 shows a cross section along aa, in Fig.4 - section bb - overload on a conveyor belt.

 The power train-loader includes a shortened scraper conveyor-loader having a drive head 2 with one-way drive 3, linear sections-troughs 4 located above the soil in the form of an arrow part of the scraper conveyor-loader 1, and an end head 5 with adjoining troughs forming the loading part of the reloader ; wheeled trolleys 6 having two double-flange wheels fixed at the bottom of the vertical part of the T-shaped frame 8, on the upper shelf 9 of which there are connecting elements, for example pins 10, on which longitudinal tubular girders 11 are put on, connecting the wheeled trolleys 6 to each other with the formation of one of a common platform located horizontally above the soil, limitedly flexible within the limits of the calculated hypsometry of the drift soil and allowing to place on it simultaneously the entire scraper conveyor-reloader 1 from the side, adjacent leading to the downhole side of the drift, (except for the end head 5 and loading pans, where pins 10 and runs 11 are not respectively installed) and all power units 12 of the power train containing pumping stations, a magnetic station, an irrigation drive, auxiliary equipment placed on wheeled trolleys parallel to the conveyor - to the reloader from the walking side of the drift in one line close to the pans 4 of the scraper conveyor, reloader 1 and close to each other, regardless of the step of the generated train to reduce the length of the whole train a-loader. The length of the conveyor reloader corresponds to the length of the power train, since they are parallel, and is equal to the sum of the lengths of the power units 12 of the electric train (maximum three pump stations of 2 m, three oil tanks with make-up of 3.5 m, magnetic station 3 m, irrigation drive 3 m, hydraulic console 2 m, electric remote control and starters 3.5 m, fire equipment 3 m). The maximum length of all equipment from the drive head of the conveyor to the tail end head 5 is 32 m, and to the bottom of the working face is about 25 m, which corresponds to the width of the guard pillar at the recoil drift. The boom part of the scraper conveyor-loader 1 is located above the drift conveyor 19. The narrow-gauge track for wheeled trolleys is offset from the bottom face of the drift towards the walker in order to free up space on the soil under the boom part of the scraper conveyor-reloader 1 to place the linear part of the first sectional conveyor conveyor on the soil 19, made shortened and scraper, and to move the energy train-loader, it has two tubular sectional guides, which are periodically laid on the soil in the course of the move. The last wheeled trolley 6 with a movement jack 18 is connected to the head of the head of the lava conveyor.

 A method of moving an energy train-loader in the direction of moving the working face includes moving the lining sections pulled to the stand to pick up the roof after removing the coal strip, locking the bolt and spacing of the lining sections, turning on the jack 18 for moving the energy train-loader and pushing the wheel trolleys 6 of the energized loading train-loader from the fixed train slaughtering. All power units 12 are moved simultaneously with the scraper conveyor-reloader 1 installed on the same wheeled carts 6. The boom part of the conveyor-reloader 1 moves over the drift scraper conveyor 19 located below it, installed between the scraper conveyor-reloader 1 and the conveyor belt conveyor 20, reducing the length which is produced after a full collision of the scraper conveyor reloader 1 on the drift scraper conveyor 19.

 Energy train loader works as follows. When working in the lava of the combine or plow, coal is transported by the lava conveyor to the drift, where it is received by the scraper conveyor-reloader 1 and transported to the first conveyor of the chain of conveyor belt conveyors 19, adopted in this case also as scraper, placed with its tail under the boom of the conveyor -loader 1.

 Subsequently, the coal enters the standard type conveyor belt conveyors 20, sections that transport coal to the recoil drift. After the excavation of the cycle, the main conveyor moves to the bottom by the amount of the cycle, for example 630 mm, while the unloading part of the main conveyor can move on the pans of the loading part of the conveyor-reloader 1 for several cycles or move simultaneously and simultaneously with it. In the first case, the conveyor conveyor 1 is moved independently of the lava cycle using an autonomous propulsion device in the form of two horizontally located rollers 13, compressing the guide tube 14 with the roller drive from the hydraulic motor 15, or using the same hydraulic motor 16 mounted coaxially with the wheel 7 with the transmission of torque directly to the axle of the pair of wheels 17. In the second case, when the loader conveyor cycle is tied to the conveyor cycle of the main conveyor, the mover is a jack 18, a power train-loader with a support or a direct connection of a truck-train with a drive unloading head of a main conveyor by means of a link or (and) a jack.

 The use of a scraper conveyor 19 as the first of the conveyor belt conveyors, and the belt conveyor 20 as the second section conveyor, has the advantage that the conveyor 19 fits into the dimensions of the undercut part of the conveyor 1 and the width of all equipment along the entire length of the drift fits into the width of about 1.6 m, providing a normal width passage for people and normal gaps from the bottom side of the drift with the smallest of the standard sizes of the conveyor drift (upper port 2.4 m).

 Conveyor belts are used typical, high performance, with a belt width of up to 1200 mm - also fit into the specified size. As the working face moves up to 25 m, no auxiliary operations are performed on the shift except for the transfer of the tubular guides 14 (released after the passage of the last bogie 6) forward under the first bogie of the conveyor 1.

 After the short conveyor 1 is fully hit by the conveyor 19 to its length of 25 m (during the shift), the conveyor 20 is reduced to remove the 50-meter length of the belt and the conveyor 1 is moved forward 25 m. At the end of the excavation column, the last 25 m of movement normal operation without any additional remounting work during the shift, and the post is being finalized up to a security pillar about 25 m wide from the haulage drift.

 Owing to this design of the energy train-loader, low-operational work on coal reloading and energy train movement is achieved, the need for special machines is significantly reduced, the weight of special equipment with its length of about 32 m, including about 12 two-wheeled trolleys 6 plus 33 tubular runs 11, is reduced and cheaper. a short scraper conveyor 1 is any of the set of serial pans, drives and end heads available at the mine. The mass of all special equipment is: 11 trolleys of 120 kg each, plus 33 runs and 25 tubular rails (identical, F114 pipe by 8, 3 m long) each weighing 60 kg no more than 5 tons.

 With a working face productivity of about 8 thousand tons per day, with a formation thickness of 3.5 m and a length of lava of 200 m, the daily movement of the face will be 8 m / day, which ensures non-stop coal reloading on the conveyor belts for three days, after which one non-working repair the shift is carried out by transferring the drum of the conveyor belt 20 forward by 24 m with disconnecting the 50-meter length of the tape (transport section of the belt), pulling forward (without disassembling) the 30-meter scraper conveyor 19, and then again creates a full r the ability of the drift equipment to continuous operation over the next three days without auxiliary and time-consuming operations, and the complete development of the excavation column.

 Thus, both the functional and the cost of the equipment, the proposed power train-loader surpasses analogues and prototypes under development.

Claims (2)

 1. An energy train-loader, comprising power units of an energy train installed on wheeled trolleys, containing pumping stations, a magnetic station, an irrigation drive, auxiliary equipment and a scraper conveyor-loader located parallel to the energy train, the boom part of which is located above the drift conveyor, characterized in that each wheeled trolley made in the form of a T-shaped frame with two double-flange wheels at the bottom of the vertical part of the frame and connecting elements, for example, pins, on the top horizontal parts of the frame with which they are connected using longitudinal tubular girders with the formation of a common and continuous horizontal surface raised from the soil to accommodate the boom part of the scraper conveyor reloader mounted on the downhole side of the drift, and power units mounted on the side opposite to the treatment face , at the driftway, while the narrow-gauge track for wheeled trolleys is offset from the bottom face of the drift towards the walker, to free up space on the ground under the arrows the new part of the shortened conveyor-loader for placing on the soil the linear part of the first precast walkway conveyor, made shortened and scraper, and to move the energy train-loader, it has two tubular sectional guides, periodically laid on the soil along the course of the movement, and a jack, one end which is connected with the last wheeled trolley, and the second - with the head of the head of the lava conveyor.  2. A method of moving an energy train loading crane in the direction of moving the working face, including moving the roof support sections, pulled to the stand to pick up the roof after removing the coal strip, locking the bolt and strut of the roof support sections, turning on the jack of the energy train loading crane and pushing the wheeled carts of the energy loading train from the loading crane fixed stand, moving the stand to the face, characterized in that all power units are moved simultaneously with a scraper conveyor installed on the same wheeled carts egruzhatelem, jib part which moves over the placed underneath shtrekovym scraper conveyor arranged between the scraper conveyor shtrekovym-loader and conveyor belt, the reduction is carried out after the full length of the collision-scraper conveyor loader to shtrekovy scraper conveyor.

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