DE3822200A1 - Method of excavating limestone - Google Patents
Method of excavating limestoneInfo
- Publication number
- DE3822200A1 DE3822200A1 DE19883822200 DE3822200A DE3822200A1 DE 3822200 A1 DE3822200 A1 DE 3822200A1 DE 19883822200 DE19883822200 DE 19883822200 DE 3822200 A DE3822200 A DE 3822200A DE 3822200 A1 DE3822200 A1 DE 3822200A1
- Authority
- DE
- Germany
- Prior art keywords
- limestone
- marl
- extraction
- excavating
- mining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 14
- 239000006028 limestone Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000000605 extraction Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000005065 mining Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims 1
- 238000005422 blasting Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
- E21C47/10—Machines for obtaining or the removal of materials in open-pit mines for quarrying stone, sand, gravel, or clay
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Abbau von Kalkstein (Mergel).The invention relates to a method for mining limestone (marl).
Zur Gewinnung von Kalkstein ist folgendes Verfahren von praktischer Bedeutung: Bohren, Sprengen, Gewinnen mit dem Löffelbagger, Laden auf LKW oder Bahn, Transport, Brechen des wesentlichen Kalksteinanteiles sowie Weitertransport auf Bandanlagen.The following method is more practical for extracting limestone Meaning: drilling, blasting, mining with a backhoe, loading onto a truck or rail, transport, crushing the essential limestone portion as well Further transport on conveyor systems.
Durch die Vielzahl der durchzuführenden Arbeitsschritte von der Gewinnung bis zum Bandtransport entstehen nicht nur große Verzögerungen, sondern auch relativ geringe Durchsatzleistungen bei hohen Material- und Personalkosten. Diese Arbeiten sind notwendig, da der Kalkstein beim Sprengen sehr grobstückig verbleibt und nahezu vollständig erst über einen Brecher geführt werden muß, ehe das Material bandtransportfähig ist.Due to the large number of work steps to be carried out from extraction There are not only major delays until the tape is transported, but also relatively low throughput rates with high material and personnel costs. This work is necessary because the limestone is very blasting remains in large pieces and almost completely passed over a crusher must be before the material is ready for belt transport.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zu konzipieren, welches diesen Nachteil beseitigt.The invention has for its object to design a method which eliminates this disadvantage.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Kalkstein (Mergel) in feinstückiger, im wesentlichen bandtransportierfähiger Korngröße in einem Arbeitsgang unmittelbar bei der Gewinnung erzeugt wird.This object is achieved in that the limestone (Marl) in fine-grained, essentially belt-transportable grain size is produced in one operation immediately during extraction.
Vorteilhafte Weiterbildungen des erfindungsgemäßen Verfahrens sind den Unteransprüchen zu entnehmen.Advantageous developments of the method according to the invention are the See subclaims.
Als bevorzugtes Gerät zur kontinuierlichen feinstückigen Gewinnung von Kalkstein (Mergel) soll ein Schaufelradbagger zur Anwendung kommen.As the preferred device for the continuous fine extraction of Limestone (marl) is to be used in a bucket wheel excavator.
Im Gegensatz zum Stand der Technik werden folgende Vorteile erzielt:In contrast to the prior art, the following advantages are achieved:
- - Feinstückigkeit wird bereits beim Gewinnen erzeugt, d.h. anstelle der bekannten drei Prozeßstufen (Sprengen, Laden, Brechen) ist nunmehr nur noch eine notwendig.- Precision is already generated when winning, i.e. instead of known three process stages (blasting, loading, breaking) is now only one more necessary.
- - Der Brecher hat nur noch eine Sicherheitsfunktion, um Überkorn zu verhindern, d.h. die Brecheranlage kann kleiner ausgelegt werden, da nur noch etwa 10% Überkorn vorhanden ist. - The crusher only has a safety function to prevent oversize particles prevent, i.e. the crusher plant can be designed smaller because only about 10% oversize is left.
- - Der Feuchtigkeitsanteil des Materials nach dem neuen Verfahren ist geringer, da das Material sofort nach der Gewinnung abgeführt wird und nicht, wie beim herkömmlichen Verfahren, nach dem Sprengen am Böschungsfuß liegenbleibt und so Witterungseinflüssen ausgesetzt wird.- The moisture content of the material is according to the new process less because the material is removed immediately after extraction and not, as with the conventional method, after blasting on Embankment foot remains and is exposed to weather influences.
- - Reduzierung der Personal- und Materialkosten.- Reduction of personnel and material costs.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883822200 DE3822200A1 (en) | 1988-07-01 | 1988-07-01 | Method of excavating limestone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883822200 DE3822200A1 (en) | 1988-07-01 | 1988-07-01 | Method of excavating limestone |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3822200A1 true DE3822200A1 (en) | 1990-01-04 |
Family
ID=6357691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19883822200 Withdrawn DE3822200A1 (en) | 1988-07-01 | 1988-07-01 | Method of excavating limestone |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3822200A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4123307C1 (en) * | 1991-07-13 | 1992-12-24 | O & K Orenstein & Koppel Ag, 1000 Berlin, De | |
FR2839742A1 (en) * | 2002-05-17 | 2003-11-21 | Rene Brunone | Quarry rock extraction vehicle comprises chassis carrying working head comprising two counter-rotating wheels delimiting rock crushing gap between them, conveyor having reception end under gap at acute angle |
-
1988
- 1988-07-01 DE DE19883822200 patent/DE3822200A1/en not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
Lehrveranstaltung, Rohstoffgewinnung Übertage, im Sommersemester 1981 an der Techn. Universität Berlin, Organisationsplan, 2. Vorlesung, Abbildung18, Textseite 17, 6. Vorlesung, Textseite 1 * |
RASPER, L., Dr. et al.: Der Schaufelradbagger als Gewinnungsgerät, Trans Tech Publications, 1973, S. 91 u. 92 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4123307C1 (en) * | 1991-07-13 | 1992-12-24 | O & K Orenstein & Koppel Ag, 1000 Berlin, De | |
WO1993001392A1 (en) * | 1991-07-13 | 1993-01-21 | Krupp Fördertechnik Gmbh | Rotary cutter for extracting hard rock |
GB2273947A (en) * | 1991-07-13 | 1994-07-06 | Orenstein & Koppel Ag | Rotary cutter for extracting hard rock |
US5378049A (en) * | 1991-07-13 | 1995-01-03 | Krupp Fordertechnik Gmbh | Rotary cutter for extracting hard rock |
GB2273947B (en) * | 1991-07-13 | 1995-06-07 | Orenstein & Koppel Ag | Disc-like milling cutter for extracting mineral substances |
FR2839742A1 (en) * | 2002-05-17 | 2003-11-21 | Rene Brunone | Quarry rock extraction vehicle comprises chassis carrying working head comprising two counter-rotating wheels delimiting rock crushing gap between them, conveyor having reception end under gap at acute angle |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8125 | Change of the main classification |
Ipc: E21C 41/30 |
|
8130 | Withdrawal |