SI8111147A8

SI8111147A8 - Device for an underground pit, particulery for exploating thick layers

Info

Publication number: SI8111147A8
Application number: SI8111147A
Authority: SI
Inventors: Matyas Martinko; Andras Elekes; Kalman Simon; Jozsef Bohnert; Janos Nemeth; Karoly Bole; Zoltan Ilyes
Original assignee: Banyaszati Fejlesztesi Intezet; Varpalotai Szenbanyak
Priority date: 1980-05-06
Filing date: 1981-05-05
Publication date: 1994-12-31

Description

Naprava za podpiranje in izkoriščanje rudnih slojevA device for supporting and exploiting ore layers

PODROČJE TEHNIKETECHNICAL FIELD

Izum spada v širšem smislu na področje strojev ali postopkov za eksploatacijo rudnikov ali kamnolomov, v ožjem smislu pa na področje strojev za popolno izkopavanje rude iz sloja s pomočjo odsekovanja in lomljenja.The invention broadly refers to the field of machinery or processes for the exploitation of mines or quarries, and in the narrower sense to the field of machinery for the complete extraction of ore from a layer by means of sectioning and fracturing.

V mednarodni razvrstitvi patentov je predmet izuma uvrščen v razred E 21 C 27/10.In the international patent classification, the subject matter of the invention is classified in class E 21 C 27/10.

“zurn pa spada tudi na področje rudni skesa podporja in na konstrukcijske lastnosti v zvezi z njim. Zato je mogoče predmet izuma uvrstiti tudi v razred E 21 D 23/0M mednarodne klasifikacije patentov.“The zurn also belongs to the field of ore mining support and its structural properties. Therefore, the subject of the invention can also be classified in class E 21 D 23 / 0M of the International Patent Classification.

TEHNIČNI PROBLEMTECHNICAL PROBLEM

Izhajajoč iz naprave za izkoriščanje debelih slojev, zlasti v premogovnikih, sestoječe iz transporterja, ki je položen vzporedno z <odkopnim čelom, in podporja, sestoječega iz krovnih podpornih okvirov, pri čemer imajo slednji vsakokrat na strani loma s podložnim pragom povezan zamičen element in s slednjim zgibno povezan, s stojko podprt lomni zaslon, ki nosi nad slojem razporejeno kapo, in pri čemer je v enem od zaslonskih elementov predvidena zapirljiva odprtina, ki služi za odtegovanje premoga, lomečega se nad lomnim zaslonom, je izum osnovan na problemu, kako to napravo nadalje razviti, da bo odvod premoga potekal enakomerneje in popolneje kot doslej in da bo naprava kot celota tako s konstrukcijskega kot tudi vzdrževalnega stališča manj zahtevna in zato funkcijsko bolj zanesljiva.Starting from a device for the exploitation of thick layers, in particular in coal mines, consisting of a conveyor positioned parallel to the <excavation face and a support consisting of umbrella support frames, each having a detachable element and the invention is based on the problem of how the latter is articulated, supported by a strut supported screen, which bears a cap arranged over the layer, and in which one closure opening is provided in one of the screen elements to serve the extraction of coal breaking above the screen. further develop the device so that the coal drainage will be more even and complete than before and that the device as a whole will be less demanding from a structural and maintenance point of view and therefore more functionally reliable.

STANJE TEHNIKEBACKGROUND OF THE INVENTION

Znano je (FR 2 360 742, FR 2 369 414), da na področju rudarstva, zlasti v premogovništvu, čedalje bolj pridobivajo na pomenu tisti načini izkopavanja in naprave, ki omogočajo izkoriščanje debelih slojev v eni sami delovni operaciji.It is known (FR 2 360 742, FR 2 369 414) that, in the field of mining, especially in the coal industry, excavation methods and devices that allow the exploitation of thick layers in a single work operation are gaining in importance.

Med znanimi konstrukcijami naprav za odkopavanje razlikujemo dva sistema. Pri prvem ima lomni zaslon, ki je nagnjen k tistemu koncu naprave, ki je obrnjen k strani lomljenja, odprtino, in premog se lahko skozi to odprtino odvaja na transporter, ki je razporejen nekako v sredini naprave.Two systems are known to be known for excavation device construction. In the former, the refractive screen, which is inclined towards the end of the device facing the fracture side, has an opening, and the coal can be discharged through this opening to a conveyor arranged in the middle of the device.

- 3 Nadaljnji transporter se nahaja na delu naprave, kjer se premog odriva, pri čemer je naloga tega transporterja kontinuirno odvajati premog, pridobljen z odkopnim strojem.- 3 A further conveyor is located on the part of the coal extraction plant, the task of this conveyor being to continually discharge the coal obtained from the excavation machine.

Te naprave so zaradi dveh transporterjev zelo zamotane. Razen tega je za odvajanje premoga na razpolago le majhna odprtina, tako da je odvajanje dolgotrajno in premog se nad majhno odprtino nagiba k tvorbi mostov, kar vodi k obratovalnim motnjam. Nadaljnja važna pomanjkljivost opisanih naprav je v tem, da za strežno osebje ni zadosti prostora in da tudi ni prostora za vozno pot. Kot nadaljnjo pomanjkljivost naj omenimo, da premoga, ki je padel na tla na lomni strani naprave ni mogoče spraviti na transporter, tako da je treba računati z relativno veliko količino neodvedenega premoga. Niso pa to vse pomanjkljivosti.These devices are very complicated due to the two conveyors. In addition, only a small opening is available for coal drainage, so that drainage is time-consuming and coal tends to form bridges over a small hole, leading to operational disruption. A further important disadvantage of the described devices is that there is not enough space for the staff and that there is no space for the route. As a further disadvantage, it should be noted that coal that has fallen to the ground on the refractive side of the plant cannot be stacked on the conveyor, so a relatively large amount of unclaimed coal must be accounted for. But these are not all disadvantages.

Pri drugem sistemu naprav (prim. članek v časopisu Gluckauf 116, 1980, št. 3, str. 128, DE-A 27 58 242 in DE-A 23 10 077), ki se jih uporablja pri odkopu, ima zaslon za krovnino v mesto odkopavanja segajoč, nazaj zapognjen nihalen nastavek. Drugi transporter se nahaja pod tem nastavkom. Ta rešitev ima v osnovi enake pomanjkljivosti kot zgoraj pojasnjene naprave. Odprta lega drugega transporterja je tu celo še neugodnejša, ker je popravljanje in vzdrževanje tega transporterja med obratovanjem zaradi življenjske nevarnosti delavca skorajda nemogoče, saj je treba ta dela izvajati v območju samega odkopa, kjer ni podporja.For the second system of devices (cf. article in Gluckauf 116, 1980, No 3, p. 128, DE-A 27 58 242 and DE-A 23 10 077) used for excavation, the screen has the excavation site extending, backward bent, swinging attachment. The second conveyor is located under this attachment. This solution has basically the same disadvantages as the devices explained above. The open position of the second conveyor is even more disadvantageous here, since repairing and maintaining this conveyor during operation is almost impossible due to the life-threat of the worker, since these works must be carried out in the area of the excavation itself, where there is no support.

OPIS REŠITVE PROBLEMADESCRIPTION OF THE PROBLEM SOLUTION

Problem je po izumu rešljiv s tem, da se prestavni zaslon, ki je priključen na ležeč prag, preko zgiba premakne naprej v takšnem kombiniranem konstrukcijskem delu, katerega prednji odsek tvori zaslon krovnine, podaljšek tega odseka, torej zadnji odsek kombiniranega konstrukcijskega dela, pa tvori nosilec lomnega zaslona, ki je povezan z zaslonom krovnine v smislu prenašanja sile, in med tema nosilcema lomnega zaslona je predviden element, ki je zasučen oziroma se lahko zvrne okrog zgiba na lomni strani, pri čemer ta element služi kot odvzemna loputa, ki tvori v svojem zvrnjenem položaju drčo za odvzeti premog. Nagib in dolžina odvzemne lopute sta izbrana tako, da premog brez nadaljnjega preide z nje na trans porter. Zaslon krovnine in z njim v siloprenašajoči zvezi nahajajoča se nosilca lomnega zaslona so povezani preko vsaj ene hidravlične stojke ležečega praga, odvzemna loputa pa se lahko giblje tudi s pomočjo vsaj ene, smotrno med ležečim pragom in odvzemno loputo razorejene hidravlične stojke. Za podprtje krovnine nad napravo je na zaslon krovnine priključen izvlačljiv pomični pokrov in s tem pomičnim pokrovom je povezan premogovni lopornik, ki se prav tako lahko giblje s pomočjo hidravličnega cilindra. Zlasti pri sipajoči se hribini je prednostno, če je na ležeči prag naprave priključen nosilni okvi’-’ transDorte^ja in so na ta okvir soravi jeni razen transporterja še za vodenje odkopnega stroja služeči progovni elementi .The problem according to the invention is solved by the fact that the gear screen, which is connected to the landing threshold, moves forward through the joint in such a combined structural part, the front section of which forms a cover screen, and the extension of this section, that is, the last section of the combined structural part, forms a fracture screen carrier connected to a cover screen in terms of transmitting force, and between these fracture screen carriers an element which is rotatable or can be rotated around the joint on the fracture side, this element serving as a recoil flap forming its collapsed position, the coal stripper. The slope and length of the take-off flap are chosen so that the coal passes from it to the trans porter without further ado. The screen of the roof and the breakage bracket located therein are connected via at least one hydraulic support of the sleepers, and the extractor flap can also be moved by means of at least one hydraulic rack which has been removed between the sleepers and the extraction flap. To support the canopy above the device, a removable movable cover is connected to the cover of the cover, and a coal vane is connected to this cover, which can also be moved by means of a hydraulic cylinder. Particularly in the case of a sloping hill, it is preferable to have a supporting frame '-' transDorte ^ attached to the sill of the device and to provide supporting elements to the frame except the conveyor for guiding the excavating machine.

Odvzemna loputa, ki je zvrnilno nameščena med nosilcema lomnega ščitnika, sodeluje v tistem položaju, v katerem tvori z nosilcema lomnega ščitnika sklenjen lomni ščitnik, na prenosu obremenitve, ki jo prevzema zaslon krovnine, k ležečemu pragu. To funkcijo lahko premični pokrov izvaja zaradi tega, ker ima na svojem koncu ob transporterju takšno ploskev, ki se opira na protiploskev, izvedeno v zaslonu krovnine, in na ta način lahko vzdolž te ploskve prevzame del obremenitve zaslona krovnine in jo prenaša preko lastne stojke na ležeči prag.The recoil flap, which is pivotally mounted between the fracture shield supports, engages in the position in which the fracture shield contracted with the fracture shield supports forms on the load transmitted by the cover screen to the lying threshold. The movable lid can perform this function because, at its end, it has such a surface at the conveyor that relies on a counter face made in the screen of the canopy, and thus can take along part of the load of the screen of the canopy along this plane and transmit it over its own stand at lying threshold.

Naprava po izumu je lahko zasnovana na ščitni konstrukciji poljubnega tipa. Ščitna konstrukcija, ki je pojasnjena v opisu, služi le kot primer. Pri ščitnih konstrukcijah drugega tipa, npr. pri tako imenovanih lemniskatnih ščitih, je treba pojme in nazive posameznih konstrukcijskih delov iz tega opisa razumeti istosmiselno.The device according to the invention may be based on a shield structure of any type. The shield construction explained in the description serves as an example only. In the case of shield structures of the second type, e.g. In the case of so-called lemniscate shields, the terms and designations of the individual structural parts in this description must be understood in the same way.

K predlagani napravi spadajo progovni elementi za vodenje transporterja in odkopnega stroja. Premični zaslon je priključen k delu ležečega praga na lomni strani. Naprava po izumu ima še med zaslonom krovnine in premičnim zaslonom vgrajen, glede na premični zaslon zvrnilno nameščen lomni zaslon, ki je preko stojke povezan z ležečim pragom. Bistvo tako zasnovane naprave po izumu je v tem, da k lomnemu zaslonu z zaslonom krovnine spadata nosilec lomnega zaslona, ki tvori siloprenašajočo enoto, kakor tudi odvzemna loputa, ki se glede na nosilca lomnega zaslona lahko zvrne v položaj, ki je glede na transporter nagnjen.The proposed device includes the track elements for guiding the conveyor and the excavating machine. The movable screen is connected to a portion of the lying threshold on the breaking side. The device according to the invention has a refractory screen mounted in relation to the movable screen between the cover screen and the movable screen, which is connected to the threshold by means of a stand. The essence of the device according to the invention according to the invention is that the fracture screen with the screen of the cover includes a fracture screen carrier forming a silo-carrying unit, as well as a lifting flap that can be rotated in relation to the conveyor inclining according to the conveyor screen .

Pri smotrni izvedbeni obliki naprave po izumu ima odvzemna loputa na svojem nad transporterjem nahajajočem se koncu prislonsko ploskev, zaslon krovnine pa v osnovnem položaju odvzemne lopute na to prislonsko ploskev opirajočo se protiploskev.In a convenient embodiment of the device according to the invention, the recoil flap has a supporting surface at its end above the conveyor, and the screen of the cover in the basic position of the recoil flap has a counter-support on the said recoil surface.

Med odvzemno loputo in ležečim pragom je vgrajena vsaj ena stojka.At least one stand shall be installed between the extractor flap and the sill.

Glede na to, da se naprave po izumu razporedi drugo poleg druge v nizu, je smotrno, da po eni strani med sosednjimi napravami ni špranj, skozi katere bi premog ali deli hribine lahko padali na napravo ali na strežno osebje, in da po drugi ni nikakršnih špranj na lomni strani. V ta namen so zunanje ploskve nosilcev lomnih zaslonov in premičnega zaslona opremljene s pokrivali špranj.Given that the devices according to the invention are arranged side by side in a series, it is advisable that, on the one hand, there are no gaps between adjacent devices through which coal or parts of the hill may fall on the device or on attendant personnel, and on the other no slits on the breaking side. For this purpose, the outer surfaces of the fracture screen supports and the movable screen are provided with slit covers.

Nadaljnja smotrna izvedbena oblika izuma je opremljena s pomičnim pokrovom, ki je premakljiv glede na zaslon krovnine v smeri premogovega sklada, in z opiralom premogovega sklada, priključenim na ta pokrov.A further advantageous embodiment of the invention is provided with a sliding cover that is movable relative to the screen of the coal stack in the direction of the coal stack, and with a coal stack support connected to that cover.

PRIMER IZVEDBEEXAMPLE OF PERFORMANCE

Izum je v obliki prednostnega izvedbenega primera razviden iz načrtov in bo ob upoštevanju le-teh v nadaljnjem pobliže pojasnjen. V načrtih kaže:The invention is shown in the form of a preferred embodiment in the form of drawings and will be further explained in the following. The plans indicate:

sl. 1 napravo po izumu v pogledu od strani, sl. 2 pa tloris naprave k sl. 1.FIG. 1 is a side-view device of the invention; 2 is a plan view of the apparatus of FIG. 1.

Na podložni prag 7 je priključen nosilni okvir 8 transporterja 17. Za vodenje okvira 8 služijo vodilni klini 9. Na okvir 8 pritrjeni transporter 17 je verižni praskalni transporter. Na okviru 8 je pritrjen tudi tirniČni sistem za vodenje odkopnega stroja 18.The carrier frame 8 of the conveyor 17 is connected to the base sill 7. Guide wedges 9 are used to guide the frame 8. The conveyor 17 attached to the frame 8 is a chain scraper conveyor. Box 8 also includes a track system for the management of the excavation machine 18.

Na koncu praga 7, obrnjenem nazaj k rovu, je priključen premičen zaslon 5, na katerega zgornji del je preko osi 11 priključen kombiniran pokrov 1, ki obsega zaslon 21 krovnine in lomni zaslon 222, ki sestoji iz nosilcev 22, togo povezanih z zaslonom 21, in odvzemne lopute 2, ki je nameščena med nosilcema 22 in glede na njiju zasučna okrog osi 10, razporejene nad osjo 11 in vzporedno z njo. Zgornji del zaslona 21 je med obratovanjem pritisnjen h krovnini, pri čemer je zaslon 222 v primerjavi s podpirajočo vodoravno ravnino zaslona 21 razporejen nekoliko niže in nagnjeno k osi 10. Tako nastane med zaslonom 222 in ploskvijo hribine nad njim sorazmerno visok prostor. K zaslonu 222 oz. njegovima nosilcema.22 sta zgibno priključena zgornja konca dolžinsko prilagodljivih stojk 12, katerih spodnja konca sta zgibno povezana s pragom 7. Vsakemu nosilcu 22 zaslona 222 je prirejena po ena hidravlična stojka 12.A movable screen 5 is connected at the end of the threshold 7, facing back to the trench, to which an upper cover is connected via the axis 11 via a combined cover 1 comprising a screen 21 and a fracture screen 222 consisting of supports 22 rigidly connected to the screen 21 , and the extraction flap 2, which is arranged between the supports 22 and rotates about them with respect to the axis 10, arranged above and parallel to the axis 11. The upper part of the screen 21 is pressed against the roof during operation, with the screen 222 being slightly lower and inclined to the axis 10 relative to the supporting horizontal plane of the screen 21, thus creating a relatively high space between the screen 222 and the hill surface above it. To the screen 222 oz. its two supports.22 The upper ends of the lengthwise adjustable posts 12 are articulately connected, the lower ends of which are articulated jointly with the threshold 7. One hydraulic stand 12 is assigned to each carrier 22 of the display 222.

Loputa 2 zaslona 222 je preko stojk 13 zgibno povezana z zadnjim, t.j. na ravni strani nahajajočim se delom pragaThe flap 2 of the display 222 is pivotally connected to the rear, i.e. at the page level to the adjacent portion of the threshold

7. Stojki 13 sta prav tako dolžinsko' prilagodljivi in sta hidravlične izvedbe. Kot je razvidno s sl. 2, sta stojki 13 i7. The posts 13 are also lengthwise flexible and have hydraulic designs. As can be seen from FIG. 2, what stands 13 and

zgibno priključenima loputo 2 na njeni spodnji strani med nosilcema 22 simetrično glede na vzdolžno os 30 naprave, pa zamaknjeno v smeri k prosti poševni zadevalni ploskvi 20 lopute 2. Loputo 2 je možno s pomočjo stojk 13 zavihteti navzdol v poševni položaj, kot je na sl. 1 nakazan s črtkanimi Črtami. Tedaj loputa 2 služi kot drča za odkopani premog, ki zdrsne na transporter 17. Ploskev 20 oklepa z osnovno ravnino zaslona 222 oz. s talno ploskvijo lopute 2 oster kot in je skladna z v zaslonu 21 izvedeno protiploskvijo 21a. Ti medsebojno ubirajoči ploskvi 20, 21a omogočata, da se pri povsem izvlečenih stojkah 13 del sil oz. obremenitve zaslona 21 preko lopute 2 prenaša na stojki 13 in preko njiju na prag 7.the hingedly connected flap 2 on its underside between the brackets 22 symmetrically with respect to the longitudinal axis 30 of the device, and displaced in the direction of the free oblique contact surface 20 of the flap 2. The flap 2 can be rotated downwards in an oblique position, as in FIG. . 1 indicated by dashed lines. The flap 2 then serves as a coal mining slide that slides onto the conveyor 17. The surface 20 encloses the base plane of the display 222 or. with the floor surface of the flap 2 a sharp angle and consistent with the screen 21a performed in the screen 21. These interlocking surfaces 20, 21a allow 13 forces to be exerted at fully extended stands 13. loads the screen 21 through the flap 2 to the stand 13 and through it to the sill 7.

Loputa 2 torej služi kot drča in kot element za zapiranje odprtine med nosilcema 22 zaslona 222.The flap 2 thus serves as a handle and an element for closing the opening between the supports 22 of the display 222.

Na prednjem delu zaslona 21, t.j. v smeri odkopa, je razporejen s pomočjo delovnih cilindrov 15 v smeri premogovega sklada premičen pokrov 3- Cilindra 15 sta izvedena kot hidravlični enoti bata in cilindra in sta zgibno pritrjena tesno pod zaslonom 21, toda nad zgornjim robom nosilcev 22, na steni 33, potekajoči približno navpično med zaslonoma 21, 222 in sta razporejena v območju pokrova 1. Glede na pokrov 3 se zadrževalo 31 premoga, ki je preko zgiba 32 povezano s pokrovom 3, zavihti navzdol oziroma navzgor v smeri proč od poKrova i aii k njemu. ±o se opravi z, enoto 1 G Lata m Ciikiiura, ki je zgibno priključena enkrat na k pokrovu 1 zaslona 21 obrnjeni strani zadrževala 31 , drugič pa na premakljivem, s pomičnim pokrovom 3 povezanem delu ležeče enote 15 bata in cilindra.At the front of screen 21, i.e. in the direction of excavation, is arranged by means of working cylinders 15 in the direction of the coal stack. The movable cover 3- The cylinders 15 are designed as hydraulic piston and cylinder units and are articulated tightly under the screen 21, but above the upper edge of the supports 22, on the wall 33, extending approximately vertically between the screens 21, 222 and arranged in the area of cover 1. With respect to cover 3, the coal retainer 31, which is connected via joint 32 to cover 3, is rotated downwards or upwards away from the cover i aii to it. ± o is done with a 1 G Lata m Ciikiiura unit which is articulated once to the retainer 31 of the display panel 21 and the second to the movable cover 3 of the piston and cylinder unit 15 connected to the movable cover 3.

Na sl. 1 sta s tankimi črtami vrisana odkopni stroj 18 in odkopni valj.In FIG. 1 shows a dash 18 and a roller with thin lines.

Glede na to, da je možno uporabiti hkrati več druga poleg druge postavljenih naprav po izumu, je smotrno, da poskrbimo za zaporo špranj med napravami, da skoznje ne bi nič padlo v območje, v katerem se nahaja strežno osebje. Za zaporo špranj služijo po eni strani elastično prilagodljiva pokrivala 4, ki so pritrjena na robnih ploskvah nosilcev 22 zaslona 222, po drugi pa elastično prilagodljiva pokrivala 6 za prekritje špranj vzdolž zaslona 5.Given that it is possible to use several devices in addition to each other according to the invention, it is advisable to provide for the closure of the gaps between the devices so that nothing falls into the area in which the personnel are located. The closure of the slits is on the one hand elastically adjustable covers 4, which are fixed on the edge surfaces of the supports 22 of the display 222, and on the other, the elastically flexible covers 6 for covering the slits along the display 5.

Praznina 19 med stojkami 12, 13 služi kot vozna pot oz. kot gibalni prostor za strežno osebje.The void 19 between the posts 12, 13 serves as a driveway. as a moving area for service personnel.

Nosilni okvir 8 transporterja 17 se da glede na prag 7 premikati s cilindroma 14.The carrier frame 8 of the conveyor 17 can be moved from the cylinder 14 relative to the threshold 7.

Na vzdolžnih robovih lopute 2 sta nameščeni pokončni bočni pločevini 2a za zanesljivo vodenje odvzete hribine.On the longitudinal edges of flap 2, upright side panels 2a are mounted to reliably guide the stripped hill.

V loputi 2 so izvedene neprikazane odprtine, ki se jih da zapreti in skozi katere je možno v danem primeru nad zaslonom 222, t.j. na lomni strani zaslona 21 nahajajočo se hribino navrtati in razstreliti. Če torej ne pride do spontanega lomljenja hribine nad zaslonom 222, tedaj je možno le-to razlomiti z razstreljevanjem in jo ob nagnjenosti lopute 2 zdrsno odvesti na transporter 17. Pri tej legi lopute 2 lahko ·--- *- v <· <-> .· n b·. ’ r '¹ r-, < 1 1 · _: ·- c' o fL r ‘ H f-'_; r\ . ¹ -Ί - · ^r' '' n r', 4- % > r» li ^r;In the hatch 2, non-openable openings are made, which can be closed and blown through the breakable side of the screen 21, through which it can be optionally closed above the screen 222. Therefore, if there is no spontaneous breaking of the hill above the screen 222, then it can be broken by blasting and, with the inclination of the flap 2, slid to the conveyor 17. In this position flap 2 can be --- --- * - in <· <- >. · Nb ·. 'r' ¹ r-, <1 1 · _: · - c 'o fL r' H f- '_; r \. ¹ -Ί - · ^r '''nr',4-%> r »li ^r ;

streljevanja je med zaslonom 222 in hribino zadosti prostora, da se izognemo nevarnosti poškodbe naprave ali osebja.there is sufficient space between the screen 222 and the hill to avoid the risk of damage to the device or personnel.

Na osnovi pojasnjene izvedbene oblike je razvidno, da je možno krovnino in premogov sklad med primikom odkopnega stroja 18 in neposredno zatem podpirati s primikom sprednjega pomičnega pokrova 3 oz. s pomočjo na pokrov 3 priključenega zadrževala 31 premogovega sklada.Based on the explained embodiment, it can be seen that it is possible to support the roof and coal stack between the opening of the excavating machine 18 and immediately thereafter by moving the front movable cover 3 or. with the help of cover 3 of the associated coal fund retainer 3.

Pri predlagani napravi je potreben en sam transporter 17, ki odvaja tako z odkopnim strojem 18 pridobljeno količino premoga kot tudi s stropa odkopano in s pomočjo odvzemne lopute 2 transporterju 17 dovedeno količino premoga. Naprava je zaprta tako od zgoraj kot tudi z lomne strani, tako da so notranji deli naprave zaščiteni. Vozna pot znotraj praz nine 19 je dobro zavarovana.The proposed device requires a single conveyor 17, which discharges both the amount of coal obtained from the excavation machine 18 and the amount of coal extracted from the ceiling via the extraction flap 2 and the conveyor 17 delivered to the conveyor 17. The device is closed both from above and from the breaking side, so that the internal parts of the device are protected. The route within void 19 is well protected.

Če se iz krovnine ločijo veliki kosi, ki ovirajo kontinuirno obratovanje, je možno z gibanjem lopute 2 gor in dol s pomočjo stojk 13 velike kose zdrobiti.If large pieces are separated from the canopy which impede continuous operation, it is possible to break the large pieces by moving the flap 2 up and down with the help of stands 13.

- II Predlog najboljšega načina za gospodarsko izkoriščanje izuma- II Proposal for the best way to make economic use of the invention

Pri projektiranju naprave bomo najprej upoštevali izhodiščne parametre, t.j. kaj bomo kopali in kakšen odkopni stroj (18) bomo uporabili. Na osnovi tega se pride do okvirnih mer, ki že omogočajo pristop do študija konstrukcije, kot je podana v prijavi, kajti v risbah sl. 1 - 2 so kljub risarskim poenostavitvam osnovni deli naprave risani v prostorskem sorazmerju.When designing a device, we will first consider the baseline parameters, i.e. what to dig and what kind of excavator (18) to use. On this basis, there are indicative measures which already allow access to the study of the structure as given in the application, since in the drawings of FIG. 1 - 2, despite the drawing simplifications, the basic parts of the device are drawn in spatial proportions.

Uporabili bomo jekla, ki se dajo dobro variti. Potrebna trdnost jekel bo npr. pri St 52-3.We will use weldable steels. The required strength of steels will be e.g. at St 52-3.

Čeprav gre za robustno napravo, gre za izredno zahtevno konstrukcijo, kar pomeni, da je potrebna stroga kontrola, priprava in varjenje uporabljenih materialov. Le strogi predpisi glede dimenzijskih odstopkov bodo omogočili sestavijivost in zamenljivost sestavnih delov.Although it is a robust device, it is an extremely demanding construction, which means that strict control, preparation and welding of the materials used is required. Only strict regulations on dimensional tolerances will allow for the compatibility and interchangeability of components.

Claims

PATENT APPLICATIONS

An apparatus for supporting and exploiting ore layers, comprising a conveyor positioned parallel to the excavation face, and a support consisting of screen support frames, each having a movable screen element connected to a break threshold on the fracture side, and a support screen supported by articulation, which is articulated with the screen element and which supports the screen of the cover, and in one of the screen elements there is provided a closing opening for the extraction of coal breaking on top of the screen, characterized in that it is fractured a screen (222) consisting of a screen (21) of a hull connected by two beams (22) and an extraction flap (2) arranged between them, pivotally connected to the beams (22) with one end thereof, with a flap (2) connected at least one hydraulic cylinder for turning the damper (2) to a position inclined towards the single conveyor (17) of the device.

Apparatus according to claim 1, characterized in that the hydraulic working cylinder for retracting the withdrawal flap (2) is designed as a stand (13), the end of which faces the flap (2) connected to the washer threshold (7).

Apparatus according to claim 1 or 2, characterized in that the flap (2) is formed on its free surface above the conveyor (17) by a contact surface (20) which is in the basic position of the flap (2) with a screen prototype (21a) based on a screen (21).