DE2041582A1 - Method and device for erecting road blocks - Google Patents

Description

PATENT ADVERTISER BODE. 4033 HÖSEL · POST BOX ■ TELEPHONE 02102-61701 · TELEX 8585166

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GULLICK DOBSON LIMITED Ince, Wigan, Lancashire, England

Method and device for erecting road dams

• The invention relates to a method for building Road dams from tailings and a device for carrying out this method.

For the protection of mining routes in underground mining operations Against the effects of strong pressure, road embankments are often provided that are made of tailings parallel to the excavation line between this and the one adjoining the mining section free face wall or the old man.

It is known that the ßergematerial within the mining route to convey to the intended installation location and with across working pushing devices from the Mining route to build the route dams out of the tailings. However, this method has several Disadvantages, especially if the mining route is expanded with arches. As a result of the slope angle of the tailings the extension of the route can only be done in the area of the lying, do not, however, backfill by machine up to the hanging wall, so that a cavity is created between the road embankment and the road construction remains. However, this increases the effective cross-section of the route, which is undesirable

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leads to increased stress on the route expansion. According to the known method, this effect can only be achieved manually Filling the said cavity with tailings can be avoided. The known method also has the disadvantage that the device required for its implementation takes up a lot of space in the mining section and therefore hinders its use.

Other known methods for building road dams have the disadvantage that specially prepared tailings must be used or that the tailings are thrown in at high speed, which is in the underground Operation involves considerable dangers.

The object of the invention is> a method for erecting To create road dams that do not have the disadvantages described above, in particular a complete one Automated backfilling of the route extension enables and only little space in the dismantling route to carry it out claimed.

The invention relates to a method for erecting ψ track embankments üergematerial, which is characterized characterized in that the tailings during the introduction and / or compacting is moved in a direction parallel or nearly parallel to degradation route. In this way, a complete backfilling of the track extension is possible by machine. The construction of the road embankments will not take place from the mining section, but from the longwall. Therefore, little space is required in the mining section. The introduction and / or compression takes place in a vertical

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or other direction to the working face, depending on the angle between the mining material and the mining route.

Appropriately there is a promotion of tailings in the Areas where road embankments are being built. It is advantageous to first collect the tailings To promote the collection point from which the tailings can be conveyed to his or her installation sites. In this way the realms in which the establishment the road dams are carried out, the salvage material is supplied evenly in the required amount.

The object of the invention is also to provide a device for To create implementation of the method according to the invention.

The invention therefore also relates to a device to carry out the method described above, which is characterized by at least one face building element, which, on its side facing away from the excavation face, has a pushing device for introducing and compacting the tailings having, with the sliding device a sliding movement can be carried out away from the expansion element and parallel or almost parallel to the dismantling section. The device is there serves at the same time from longwall construction, particularly space-saving. Furthermore, it allows a fully mechanical erection of Track dams.

The tailings are fed to the pushing device an expedient development of the invention by a Conveyor, which is parallel to several expansion elements between several carried by the expansion elements

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Pushing devices and the compacted tailings, in particular extends perpendicular to the longitudinal axis of the mining section. In this way, the tailings from the mining section, where it occurs, for example, when the track is torn, it is mechanically conveyed to its installation location.

According to a preferred embodiment of the invention is it is provided that the sliding devices are hydraulically operated, with at least one pressure cylinder being provided, which is connected to a unilaterally acting sliding element, which detects and in the advancing direction of tailings pushes forward, but slides away in the opposite direction over debris lying in its path. This ensures that the feral material can only be transported in the direction of the road embankment.

The above-mentioned collection point for tailings consists according to an advantageous embodiment of the invention a collecting device, which is located in the working section on the side facing away from the working face of the one protruding into the working section Conveyor is arranged. From this collecting device, the tailings can be transported to the conveying device be given up evenly.

In a modification of the embodiment of the above-described In accordance with the invention, it is also possible that a collecting plate for tailings at the transition point between the track and the longwall face is arranged and that is on the collecting plate and between expansion elements and the compacted tailings a scraper device conveying approximately parallel to the working face extends.

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The sliding device can be designed so that they do not can only be moved parallel or almost parallel to the mining section, * but also in the direction perpendicular to the bank. It then becomes the Advancing the tailings lowered while they is raised for the return movement «in order to avoid any tailings capture.

According to a further advantageous development of the invention it is provided that the pressure cylinder or cylinders for actuation the sliding device are arranged in pull-out protective boxes. These protective boxes relieve the pressure cylinder from possibly occurring bending stresses.

Are two pressure cylinders to operate the sliding device used, it is advisable that the pressure cylinder hydraulic lisch are so connected to each other that their strokes are necessarily the same size and that their stroke movements run synchronously. .

The method according to the invention is described below with reference to the Drawing explains in which embodiments of the device for performing the method according to the invention are shown. Show it:

Fig. 1 is a side view of anes longwall construction element with part of a device for building road dams according to the invention,

FIG. 2 shows a plan view of a longwall construction with a device according to FIG. 1,

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Fig. 3 is a side view of a route location extension part of the device for the construction of road embankments,

4 shows a front view of a modified embodiment of the device for building road dams,

Figures 5, 6 and 7

Detailed views of the push-off devices ™ device for the construction of road embankments,

FIG. 8 shows a perspective partial view of a further development of the pushing device according to FIG. 7,

9 shows a hydraulic circuit for a push-off device having two pressure cylinders,

10 is a plan view similar to FIG. 2, but with the modified device according to Fig. 4,

11 is a front view of part of the device according to FIG Fig. 10,

FIG. 12 shows a cross section through the arrangement according to FIG.

™ In Fig. 1 is an expansion element 10 for a longwall for the Long front mining shown, the means of a rear cylinder using a face conveyor C as an abutment against the Removal front F has been advanced. The expansion element IO has a base box 12, hydraulic rams 17 and 17 'attached to the base box 12 and a cap construction carried by the rams 17 and 17', which consists of a rear cap part 1 <4, a front cap part IS, a pre-pledged cap 16 and one that can be pulled out opposite the rear cap part It

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offset-side cap 13 is made. The front cap part 15, which rests on the front punch 17 ', is articulated to the rear cap part 14 in the case of IS *. Me-pre-pledged cap 16 is pivotably and slidably connected to the front cap part 15 at 16 *, whereby it is ensured by suitable means that the position of the pre- pledged cap 16 can be adjusted over hanging walls.

On the opposite side of the expansion element 10 there is a shut-off plate 18 which is connected to a pressure cylinder 20 via a sterile support device IS, which is attached to the base box 12. On the offset side and below the screening plate la, in this exemplary embodiment, there is an offset conveyor 21, which is guided along the offset side of the longwall structure. The hanging wall above the offset conveyor 21 is supported by the caps 13 on the offset side.

The mountains marked with P are »as described below is »with the help of the pusher plate 18 in the offset space pressed.

In FIG. 2, a longwall structure consisting of the support element IQ and further support elements 10 ³ · - 10 ^{7 of the} same structure is shown in the area on both sides of a mining route'.R. The Abbati route R is expanded with route curve A. The route location is expanded with a route reserve extension 22, which is shown in FIG. 1 once in a side view. The extension of the route 22 "travels through a base plate 23, hydraulic rams 25 attached to it and a cap" construction 2h carried by the rams 25. In the mining section R in the area of the delivery conveyor 21, a SanBiielplatte 26 is arranged, which by means of

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a hydraulic cylinder 27 is pivotable so that with her Help the heap that arises when tearing down the mining route R. can be collected and loaded onto the offset conveyor 21.

In Fig. F and also hinted at in Fig. 2 is a modification the embodiment of FIGS. 1 and 3 shown. The offset » conveyor 21 is replaced by a scraper device} which has a scraper box 29, which has an endless Chain 30 can be moved back and forth by a drive 31. The scraper box 29 conveys this from a solid collecting plate 28

collected debris from the mining route R. Appropriate devices ensure that the pile can be conveyed away on both sides of the mining section R. Further details of the scraper device are described below with reference to FIGS. 10-12.

In Figs. 5 and 6, the pushing plate 18 is in front and Side view shown in more detail. It only works in one direction. The push-off plate 16 is on its upper joints 18a upper end connected to the star-shaped support device 19, while its lower end without connection to the star-shaped support device 19 rests. Therefore, when the pressure cylinder 20 is retracted, the push-off plate 18 can lift off with their lower end from the star-shaped support device 19 and slide over debris lying in the way.

In Fig. 7 is a preferred modification of the advancing device shown for the push-off plate 18. The feed device here consists of two pressure cylinders 20a, each on one side of the base box 12 are attached and jointly carry the push-off plate 18, which are shown in more detail in FIG. 8, are the

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Pressure cylinder 20a arranged in box-shaped housings which have an outer box part 32 and an inner pull-out box part 3H. The outer box portions 32 are at 32a articulated to the base box 12 and are given by guides 33 a limited pivotability in the bank-straight Direction. The push-off plate 18 is with the inner box parts 34 connected and can due to the pivotability of their Feed device can be moved in the manner of a leveling shovel »

In FIG. 9, a hydraulic circuit for a feed device for the push-off plate 18, which has two pressure cylinders 20a, is shown. The one pressure cylinder 20a is with its cylinder part 35 is connected directly or via intermediate links to the push-off plate 18, while it is connected to its piston rod 37 is attached to the base box 12. The other pressure cylinder 20a is attached to the base box with its cylinder part 38, while it is connected to the push-off plate 13 with its continuously formed piston rod 36. Will the The cylinder part 35 is supplied with hydraulic fluid via a line 39 y so the upper pressure cylinder 20a extends and moves the Push-off plate 18 forward. The pressure fluid contained in the annular space 35a of this pressure cylinder 20a is via a Connecting line HO is pressed into the annular space 38a of the lower pressure cylinder 20a facing away from the slide plate 18. The lower As a result, printing cylinder 20a extends in the same way as the upper printing cylinder 20a.

The method according to the invention is carried out as follows with the aid of the device described above:

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The tailings that accumulate as heaps in the excavation route or in the route location are held by the swiveling Samrael plate 26 or the solid Samael plate 29 caught. With the pivotable collecting plate 26, the tailings are loaded onto the offset conveyor 21 or on the fixed collecting plate 28 for held ready for removal by the scraper box 29. The Versatζförderer 21 or the scraper box 29 conveys the Tailings into the working area of the push-off plates 18. The push-off plates 18 push the tailings under the same

ψ early compression from the offset conveyor 21 or from the horizontal in the offset area and thus build the road dams. The direction of advance of the push-off plate 18 runs parallel or almost parallel to the excavation section R. In particular, the spaces behind the in Fig. Ί z.3. rait 3 and B ¹ marked mountain walls, which shield the mining section from the road embankment, well backfilled. Because of the angle of repose of the tailings material, the front surface of the road embankment is inclined, ie its upper edge jumps back into the offset space opposite the push-off plate 18. Therefore, the tailings are pushed up to the hanging wall, although the upper edge of the push-off plate does not extend to the hanging wall. Through this

k will be a complete filling of the line expansion and Good support of the hanging wall on both sides of the mining section was achieved.

To prevent unwanted debris from accumulating at the ends of the offset conveyor, a building element of the type of expansion element 10 can also be arranged there with push-off devices, with the aid of which the debris can be conveyed towards the old man.

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The device for erecting the road dam has in comparison to the cross-section of the mining section small dimensions, so that they do not mention the tunneling work in the Atolaau stretch with special needs.

In Fig. 10 the above-mentioned visual cutter device is shown, the chain 30 of which is arranged between the extension elements ^{, again denoted by 10, IQ ^ -IQ 7} , and the push-off plates 18. The scraper box 29 is shown in a central position.

In Fig. 11 and -υ iöL the .Schrapperkasten 29 shown in more detail. He has two ir- ^f r \ b ^ tand.voneinander .angeordnete side plates 29a and 29b 3iE side plates 29a and 29b are connected by two Querstä be 29e. The scraper box 29 is connected to the lower run of the chain 30 by stop devices 29e. A scraper plate 29f is arranged between the two side plates 29a and 29b, which fills the space between the two side plates 29a and 29b and is rotatably supported in its transverse axis by means of a shaft 29g. The shaft 29g is passed through the side plate 29a and carries a gear 29h at its end protruding from the side plate 29a. The gear 29n meshes with a pinion 29i, which is also sm. the side plate 29a is mounted via a shaft 29j, which also carries a roller 29k. On the undersides of the two side plates 29a and 29b, a stop 29d connecting them is also arranged, on which the scraper plate 29f strikes with its respective lower end when it is rotated.

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The function of the scraper box described above is as follows;

If the scraper box 29 in its state shown in FIG. 11 is sucked to the right through the lower run of the chain 30, so he grips with the scraper plate 29f lying on the collecting plate and transports it to the right, since the Scraper plate 29f is supported with its lower end against the stop 29d. If the scraper box is then used by Moved right to left, the upper run of the chain 30, which in this case moves to the right, becomes the roller 29k rotated clockwise so there & yourself, powered over the pinion 29i and the gear 29h, the scraper plate 29f on the shaft 29g rotates counterclockwise and that after right released debris. After the scraper plate 29f has been rotated by approximately 180 °, it now hits with it 11 against the left side of the stop 29d so that it is ready to collect debris from the collecting plate 28 to convey to the left. If the scraper box 29 is moved to the right again after it has conveyed debris to the left, an analog process works in the opposite direction.

Patent claims:

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Claims (12)

PATENTANWALT BODE 4033 HÖSEL POST BOX TELEPHONE 02102-61701 TELEX 8585166 - 13 - P 6 - 5 Patent claims: 1. Procedure for the construction of road embankments from tailings, d a d u r c h ge k e η η ζ eic h η et that that Tailings during the introduction and / or compaction in a direction parallel or almost parallel to the excavation section (R) is moved. 2 »Method according to claim 1, characterized in that the introduction and / or compression in a perpendicular or other direction to the working face (F) takes place, depending on the angle between the working joint (F) and mining line (R). 3. The method according to claims 1 and 2, g ekenn ζ e i honors a t du rc h the promotion of tailings in the Areas where the construction of the road embankments (P) takes place. H. The method according to claims 1-3, g e k e η η ze ic hn e t by promoting the tailings too a collection point (26, 28) from which the tailings are conveyed to his or her installation sites can be. 5. Device for performing the method according to claims! - «♦, characterized by at least one face building element (10), which on its side facing away from the working face has a sliding device (18, 19.20) for bringing in and compacting the tailings 109834/0207 PATENT ADVERTISER BODE. 4033 HÖSEL - POST BOX ■ TELEPHONE 02102-6Ϊ701 - TELEX 8585166 having, with the sliding device (18,19,20) a Sliding movement away from the face construction element (10) and parallel or can be extended almost parallel to the mining section CR). 6. The device according to claim S _9, characterized by a conveyor (21) which extends parallel to several expansion elements (10, IG ^ - 10 ⁷ ) between several of the expansion elements <10, 10 * - I0 ⁷ ) carried sliding devices (18,19 , 20) and the compacted tailings material (P) in particular perpendicular to the longitudinal direction of the mining stretch (R) extends. 7. Apparatus according to claim S and / or 6, characterized characterized in that the sliding devices (18,19,20) are hydraulically operated, at least one Pressure cylinder (20) is provided, which is connected to a unilaterally acting sliding member (18) which detects and advances waste material in the feed direction Opposite direction, however, slides away over mountain material lying in its path. 8. Device according to one or more of claims 5-7, characterized in that in the Mining section (R) on the side facing away from the mining face a collecting device (26) for tailings is arranged in the conveying device (21) protruding into the excavation section (R). 9. Apparatus according to claim S, characterized in that at the transition point between the route (R) and face a collecting plate (28) for tailings - 15 - 109834/0207 PATENTANWALT BODE - 4033 HÖSEL - POST BOX - TELEPHONE 02102-61701. TELEX 8585166 is arranged and that over the Sainmdtplatte (28) and between expansion elements ClO, 10 ¹ - 10 ⁷ ) and the compacted tailings CP) a scraper device C29,30 »31) extends approximately parallel to the working face CF). 10. The device according to one or more of claims 7-9, characterized in that the sliding device (18, 20a, 32-34) is not only parallel or almost parallel to the mining stretch CR), but can also be moved in the bank-right direction. 11. Device according to one or more of claims 7-10, characterized in that the or the pressure cylinders (20a) for actuating the sliding device (18, 20a, 32-3t »> are arranged in pull-out protective boxes (32, 34) « 12. Device according to one or more of claims 7-11, ge k e η η ζ ei c h η e t du r eh two pressure cylinders C20a) to operate the sliding device (18,2Oa, 35-39), which are hydraulically connected to each other in such a way that their strokes are necessarily the same and that their stroke movements run synchronously " Ill / Bo 109834/0207 Blank page