PL147972B1 - Method of filling mined-out voids - Google Patents
Method of filling mined-out voids Download PDFInfo
- Publication number
- PL147972B1 PL147972B1 PL25567185A PL25567185A PL147972B1 PL 147972 B1 PL147972 B1 PL 147972B1 PL 25567185 A PL25567185 A PL 25567185A PL 25567185 A PL25567185 A PL 25567185A PL 147972 B1 PL147972 B1 PL 147972B1
- Authority
- PL
- Poland
- Prior art keywords
- sand
- goaf
- brine
- filling
- pipeline
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 7
- 239000012267 brine Substances 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 10
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000002639 sodium chloride Nutrition 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 208000012868 Overgrowth Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/20—Methods of underground mining; Layouts therefor for rock salt or potash salt
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sewage (AREA)
Description
Przedmiotem wynalazku jest sposób podsadzania zrobów, znajdujacy zastosowanie zwlasz¬ cza w kopalniach soli kamiennej.Znane sposoby podsadzania zrobów, czyli wyrobisk i pustek podziemnych powstalych w wy¬ niku wybrania zloza, polegaja na doprowadzeniu do nich podsadzki suchej lub hydraulicznej.W podsadzce suchej srodkiem jest cialo stale, a nosnikiem najczesciej sprezone powietrze.W podsadzce hydraulicznej materialem podsadzkowym czyli srodkiem jest cialo stale np. po¬ pioly lotne, piasek lub piasek z dodatkiem np. odpadów: zelaza, przerostów, skal plonnych itp., natomiast woda jest tylko nosnikiem, który jest odprowadzony z materialu podsadzko¬ wego na zewnatrz zrobów. Zroby wypelnia sie zawiesina sporzadzona z ciala stalego i wody, która z powierzchni transportowana jest rurociagiem. Woda odprowadzana jest do specjalnych osadników, gdzie po sedymentacji transportowana Jest z powrotem na powierzchnie i ponownie wprowadzana do obiegu. Niedogodnoscia znanych sposobów podsadzania zrobów jest koniecz¬ nosc budowania tam podsadzkowych i osadników oraz dlugi czas odsaczania. Ponadto nastepuje wzrost wilgotnosci powietrza, a w zwiazku z tym mozliwe zmniejszenie wytrzymalosci góro¬ tworu, co jest niekorzystne z punktu widzenia statecznosci wyrobisk.Sposób podsadzania zrobów, wedlug wynalazku, polega na tym, ze zroby wypelnia sie za¬ wiesina sporzadzona z piasku i solanki, w stosunku objetosciowym od 1 do 3 czesci piasku na 0,75 do 1 czesci solanki. Zawiesina jest transportowana rurociagiem, u wylotu którego 147 9722 Ul 972 znajduje sie urzadzenie zageszczajace i odsaczajace zawiesine.Opisany sposób pozwala na odzysk solanki oraz zmniejsza zagrozenie wodne, szczegól¬ nie niebezpieczne w kopalni soli. Ponadto zastosowanie zawiesiny piasku i solanki umozli¬ wia w skuteczny sposób wykonanie podsadzki, zapewniajacej dobre podparcie stropu.Przyklad. Zroby wypelnia sie zawiesina sporzadzona w stosunku objetosciowym, z 1,5 czesci piasku i 1 czesci solanki. Zawiesine transportuje sie rurociagiem, u wylotu którego jest zamontowany hydrocyklon zageszczajacy i odsaczajacy zawiesine. Pozbawiona w znacznym stopniu czesci plynnej podsadzka wypelnia zroby, natomiast solanka czesciowo odprowadzana jest na powierzchnie.Zastrzezenie patentowe Sposób podsadzania zrobów, polegajacy na wypelnieniu zrobów podsadzka hydrauliczna zawierajaca piasek, która transportowana jest rurociagiem, znamienny tym, ze zroby wypelnia sie zawiesina sporzadzona z piasku i solanki, w stosunku objetoscio¬ wym od 1 do 3 czesci piasku na 0,75 do 1 czesci solanki, przy czym u wylotu rurociagu znajduje sie urzadzenie zageszczajace i odsaczajace zawiesine.Pracownia Poligraficzna UP PRL. Naklad 100 egz.Cena 400 zl PLThe subject of the invention is the method of backfilling the goaf, which is used especially in rock salt mines. The known methods of backfilling the goaf, i.e. workings and underground voids formed as a result of excavating the deposit, consist in feeding them with a dry or hydraulic backfilling. the body is solid, and the carrier is most often compressed air. In the hydraulic filling, the proppant material, i.e. the medium, is a solid body, e.g. fly ash, sand or sand with the addition of e.g. waste: iron, overgrowth, fertile scales, etc., while water is only a carrier, which is discharged from the proppant to the outside of the goafs. The crops are filled with a suspension made of a solid body and water, which is transported from the surface by a pipeline. The water is discharged to special settling tanks, where, after sedimentation, it is transported back to the surface and recirculated. The disadvantage of the known methods of backfilling the goaf is the necessity to build backfill and settling tanks and the long drainage time. In addition, there is an increase in air humidity, and therefore a possible reduction in the strength of the crest, which is disadvantageous from the point of view of the stability of the workings. The method of backfilling the goaf, according to the invention, consists in filling the slurry made of sand and brine, in a volume ratio of 1 to 3 parts of sand to 0.75 to 1 parts of brine. The slurry is transported via a pipeline, at the outlet of which there is a device for thickening and draining the slurry. The described method allows for the recovery of brine and reduces the water hazard, especially dangerous in the salt mine. In addition, the use of a sand and brine slurry makes it possible to efficiently create a backfill providing good support for the roof. The crops are filled with a slurry made up by volume of 1.5 parts of sand and 1 part of brine. The suspension is transported by a pipeline, at the outlet of which a thickening hydrocyclone and draining the suspension are installed. The goaf filling, largely deprived of liquid part, is filled with the goaf, while the brine is partly discharged to the surface. brine, in a volume ratio of 1 to 3 parts of sand to 0.75 to 1 part of brine, while at the outlet of the pipeline there is a device for thickening and draining the suspension. Pracownia Poligraficzna UP PRL. Mintage 100 copies Price PLN 400 PL
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL25567185A PL147972B1 (en) | 1985-10-07 | 1985-10-07 | Method of filling mined-out voids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL25567185A PL147972B1 (en) | 1985-10-07 | 1985-10-07 | Method of filling mined-out voids |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL255671A1 PL255671A1 (en) | 1987-06-01 |
| PL147972B1 true PL147972B1 (en) | 1989-08-31 |
Family
ID=20028540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL25567185A PL147972B1 (en) | 1985-10-07 | 1985-10-07 | Method of filling mined-out voids |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL147972B1 (en) |
-
1985
- 1985-10-07 PL PL25567185A patent/PL147972B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL255671A1 (en) | 1987-06-01 |
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