[go: up one dir, main page]

DE330652C - Process for the extraction of coal - Google Patents

Process for the extraction of coal

Info

Publication number
DE330652C
DE330652C DENDAT330652D DE330652DD DE330652C DE 330652 C DE330652 C DE 330652C DE NDAT330652 D DENDAT330652 D DE NDAT330652D DE 330652D D DE330652D D DE 330652DD DE 330652 C DE330652 C DE 330652C
Authority
DE
Germany
Prior art keywords
coal
extraction
compressed air
borehole
stream
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.)
Expired
Application number
DENDAT330652D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of DE330652C publication Critical patent/DE330652C/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E21C37/14—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by compressed air; by gas blast; by gasifying liquids

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)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (3)

Patent-Ansprüche:Patent Claims: 1. Verfahren zur Hereingewinnung von Kohle mit Druckluft, dadurch gekennzeichnet^ daß ein feuchter Druckluftstrom verwendet wird.1. A method for the extraction of coal with compressed air, characterized ^ that a moist compressed air stream is used. 2. Verfahren nach Anspruch r, dadurch gekennzeichnet, daß in den zum Bohrloch geleiteten Druckluftstrom Dampf eingeleitet wird.2. The method according to claim r, characterized in that in the to the borehole directed stream of compressed air steam is introduced. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der zum Bohrloch geleitete Druckluftstrom mit Wasser versetzt wird.3. The method according to claim 1, characterized in that the to the borehole guided compressed air flow is mixed with water.
DENDAT330652D Process for the extraction of coal Expired DE330652C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE330652T

Publications (1)

Publication Number Publication Date
DE330652C true DE330652C (en) 1920-12-20

Family

ID=6191742

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT330652D Expired DE330652C (en) Process for the extraction of coal

Country Status (1)

Country Link
DE (1) DE330652C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955877A (en) * 1959-01-05 1960-10-11 Ecal Francois Pneumatic device for the transport and scattering of powdered products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955877A (en) * 1959-01-05 1960-10-11 Ecal Francois Pneumatic device for the transport and scattering of powdered products

Similar Documents

Publication Publication Date Title
DE330652C (en) Process for the extraction of coal
AT108140B (en) Process for the production of a building material.
DE380836C (en) Procedure for regulating the bars of electrode hot water boilers
SU4821A1 (en) Method of imparting water resistance to fibrous materials or paper
AT121824B (en) Process for feeding pulp digesters.
DE397434C (en) Process for the production of lightfast effect papers
DE359711C (en) Process for the production of protein-rich masses from beet pulp
DE445251C (en) Process for developing Kuepen dyes on the fiber
GB337633A (en) Process for making leads, crayons and chalks
AT98899B (en) Method and device for the production of long bast wood threads.
GB262693A (en) Improved process for the manufacture of wood pulp
GB461109A (en) Method of manufacturing a crayon useful as a water-colour paint
CH212385A (en) Process for the production of staple fibers with a woolen character.
CH198157A (en) Process for wastewater purification with simultaneous production of a fertilizer.
GB289022A (en)
CH108913A (en) Method for packing cops through which the fleet is to flow in its longitudinal direction, and device for carrying out this method.
CH236216A (en) Process for the preparation of a mixture for fulling cloths or felts.
CH131594A (en) Process for the production of a vat dye.
CH105681A (en) Process for the digestion of vegetable raw materials.
AT91399B (en) Process for the production of white sugar in a loose, ready-to-bag state without a steam blanket.
CH209343A (en) Process for the production of a vat dye.
CH205536A (en) Process for the production of a vat dye.
AT91336B (en) Process for drying compressed yeast.
GB259154A (en) Process for the production of fur-like effects on plushes, crimean lamb skins and similar crape-like fabrics
CH175364A (en) Process for the production of a calcareous mixed fertilizer.