DE1241395B - Device for introducing backfill in the coaled area of longwall mining - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

E21f

German class: 5 d-15/06

Number: 1241395

File number: S 90506 VI a / 5 d

Filing date: April 11, 1964

Open date: June 1, 1967

The invention is based on a device for introducing offset into the charred space of longwall operations in flat or moderately inclined storage in coal mining with one laid in the longwall curved steel link belt for the packing material and a sling. The slingshot is there attached to the head-side turnaround of the steel link belt and must be used together with the conveyor belt be withdrawn according to the introduction of the offset.

There are also devices for introducing the offset with belt conveyors and vibrating chutes known, whose running on the conveyor slingshot devices via special clearing devices be charged. These are not curvilinear at all or only to a small extent. The back such a known system during operation is not possible. Therefore allow the known Devices only moderate daily removal rates; in addition, they require a lot of work.

These shortcomings are remedied according to the invention in that a conveyor for the backfill curved steel link belt is used, the support troughs of which are side walls towards the coal face side have, however, are too open after the offset side, which in a known manner via a space device partially loaded slingshot into the space between the upper and lower run of the Conveyor protrudes. The curve movement of the steel link belt enables sufficient Back of the system during operation. This results in an increased performance of the Complete system with a relatively small space requirement. The new device not only allows high extraction rates, but also use in relatively thin seams, e.g. B. one of the least Thickness of about 1.5 m.

The running and guide rollers of the troughs and also the traction means of the steel link belt are useful one side towards the coal face outside the space between the troughs of the upper and Arranged lower run of the belt.

In a particular embodiment of the invention, the running and guide rollers are the troughs guided in longitudinal profiles arranged on the side of the troughs, which counter the pressure of springs around axes are pivotable, the pivoting a lifting of the wallless sides of the troughs and thus a Causes inclination of the trough bottoms.

In a further embodiment of the invention, the curved support frame is made up of individual elements Device for introducing backfill in the coaled area of longwall mining

Applicant:

Salzgitter Maschinen Aktiengesellschaft,

Salzgitter bath

Named as inventor:
Heinrich Keller, Salzgitter-Bad

Assembled from angular stanchions, longitudinal rails, the running track for bestdien the slingshot and shield plates arranged on the offset side. Thereby are expedient the shots of the supporting frame on the longitudinal rails as close as possible to them connected to each other by vertical bolts and pivotable to each other.

To facilitate the transfer of the mountains from the conveyor belt to the sling are at the joints the sections of the support frame used bridge-like transition pieces, the displacements of the sections equalize each other in the vertical and horizontal direction. This allows the continuity of the career for the slingshot to be maintained.

A further improvement is achieved according to the invention in that the sections of the support frame either to the extension frame or the face conveyor via a springy compensation device, ζ. Β. Spring rods or rear cylinders connected in parallel are coupled.

The sling belt is advantageously the sling about a vertical axis between the direction of incidence and direction of stroke adjustable at an angle.

The device according to the invention allows only the following during operation in the face Relocation work need to be carried out:

1. Monitoring and regulation of the speed of the slingshot;

2. Control of the timing (interaction) of the individual work processes.

On the other hand, there are no relocation, shortening or lengthening work, laying or clearing away of protective mats and the like.

In the drawings two devices are shown as examples of the invention.

Fig. 1 shows the first system for the offsetting introduction as a section of a longwall part in plan, the hanging wall being lifted off;

709 588/44

Claims (1)

3 4 Fig. 2 is a section on line A-B in Fig. 1; pivot only a small gap between the barrel Fig. 3 shows in plan a single shot of rail joints. The connection between the running the support frame and the position of the sling tracks 2 for the slingshot 3 are shown in FIG. 6th to; Bridge-like transition pieces 17 shown here- F i g. 4 shows a section according to FIG. 5 on a larger scale. This facility not only allows the line C-D in Figure 1; swing the shots, but also a twisting F i g. 5 shows, from the offset to the coal face, the support frame 4 and delimited by in see the view in the direction F in Fig. 3; Slots 32 guided bolts 33 the pivoting Fig. 6 shows a perspective view of an angle /?. Detail from Fig. 3; io The retightening of the support frame 4 according to FIG. 7 is a partial view of the second embodiment of the back shaft of the expansion frame 5 is best done in an approximate form, viewed in the direction from the offset to the automatic, by coupling the individual coal face; Sections of the support frame to the extension frame 5; FIG. 8 is the plan view of the illustration in FIG. 7; or the face conveyor 21 by means of resilient Aus-F ig. 9 is a section along the line NP in FIG. 7. 15 equalizing devices 22, for example spring rods, or the ones shown in FIGS. 1 to 6 illustrated plant consists parallel rear cylinder 23. The rear advance one behind the befind- in open longwall space O transition of the support frame 4 curve-Tragrah- is tion F against the shield plates 15 applied offset men 4 through which installed in Rich Lichen expansion, one on this in incidence 7 misplaced in supports. Direction G conveying steel link belt 6, one on 20 To secure the space above the support frame 4, in particular the support frame 4 and its track 2, the track between the track 1 and the slingshot 3, a device 22 for rear shield plates 15, are to be secured the expansion sequence of the support frame 4 in the dismantling direction R, with men 5 equipped with caps 24 protruding to the rear, the cap ends 24 of the expansion frame 5 over the. Support frame 4 protrude away. 25 In the case of the second shown in FIGS The troughs 7 of the curved steel link belt embodiment of the invention are the support frame Only the 4 facing the coal face have 6 narrower structures than in the case of the first Austen Side sidewalls 8. At the offset train routing form. Instead of the two rails 2 reverse side they are smooth and allow effortless the first embodiment is a single barrel stripping of the backfill z. B. provided by a Räu- 30 rail 35 for the sling. The Schildmerl9 the centrifugal 3rd sheet 15 of the first embodiment is thereby The running and guide rollers 9 of the troughs 7 and dispensable. The slingshot is smoke on wheels 36 the traction means 10, for. B. link chains, etc., are driving and against tilting by means of rollers 37 in the longitudinal one side guided outside of the rails 38 on the coal face side. The rails 38 are on the Space between the troughs of the upper and lower stanchions 14 attached. arranged strand of the belt. Advantageously, the centrifuge to the loading part 18 of the centrifuge 3 is set up to pivot completely or partially about a vertical axis 39, to protrude into this space over an area measured by the incidence during the brushing To keep the overall length short. direction extends to the strike direction. During the transfer during the conveyance of the backfill material from 40 port (during the empty run), the centrifuge is rotated in the path 30 to the centrifuge 3 conveyed material losses in direction W (direction of incidence),
by sliding over the side wallless edge of the. In order to avoid that in seam hollows, the running and guiding power M must be completely rolled over the charred longwall space, advantageously in the side of the hollows, the sling is arranged by the operator Longitudinal profiles 11 out, which are adjusted against the 45 ment Y in the position U (Fig. 8) in the direction of spreading pressure of springs 12 about axes 13 pivotable. For the power supply and its pivoting <x, it is advantageous to raise a cable drum 40, which causes the floors in the "open edge" or an inclined position of the hollow space between the upper run and the lower run. The pivoted position of the conveyor belt protrudes in whole or in part,
denbleche is in F i g. 4 shown in dash-dotted lines 5 ° in FIG. 9 is the offset slope at 41 in front of and in Fig. 5 from the point of view of the offset. Spin and with 42 after spin in the area of spin 3, the hollows are drawn. The outer edge of the slingshot 3 in the transport position by means of rollers 20 attached to the scraper 19 (when traveling at high speed) is pressed and held in the horizontal position with 43 or runners. designated. The support frame 4 consists of individual sections, 55 in the case of shearer loaders or other extraction devices, e.g. angular stanchions 14, running lengthways that cut in both directions of travel, d. H. a Rail ropes, which advantageously take the size H chip at the same time, can also be Serve guidance of the running and guide rollers 9, which if skid in both directions of travel. In this Track 2 for the slingshot 3 and after the trap, the return journey of the slingshot is in high gear Set side arranged overlapped shield plates 60 to the starting position dispensable. The slingshot 15. The joining of these components to one another is then from the stroke direction U is expediently carried out by means of a pin-plug connection on both sides against the centrifugal direction Y fertilize. The individual sections of the support frame 4 or transport position W can be pivoted and adjusted, are advantageous on the longitudinal rails _p .., 11 as near as possible by means of vertical bolts 65 rate claims: 16 connected to one another and to one another around the 1st device for introducing misalignment in Angle β pivotable. When the bolts 16 are in the charred space of longwall mining operations in Close to the running rails 11, results from flat or moderately inclined storage in the carbon