Assertion: lignite | /r/HasProperty | removed
Facets:
value: from the pit
type: LOCATION
Source sentences:
text: As a result when the lignite is removed from the pit the bottom clay ruptures, causing the overburden to slide into the pit.
text: In general terms, the process according to the present invention is based on the consideration that the sand present in the brown coal or lignite material is generally restricted to a given particle or grain size range so that, once the brown coal or lignite which is in and below that grain size range is removed, it is then possible to separate the coal and the sand by a grading or classifying operation, by making a suitable selection in respect of the position of the dividing line, so that sand forms the material which passes through the sieve and coal forms the material which passes over the sieve.
text: In general terms, the process according to the present invention is based on the consideration that the sand present in the brown coal or lignite material is generally restricted to a given particle or grain size range so that, once the brown coal or lignite which is in and below that grain size range is removed, it is then possible to separate the coal and the sand by a grading or classifying operation, by making a suitable selection in respect of the position of the dividing line, so that sand forms the material which passes through the sieve and coal forms the material which passes over the sieve.
text: This also has the necessary result that brown coal or lignite in the grain size range of from 0 to 0.1 mm, which is therefore below the above-mentioned range of from 0.1 to 0.5 mm, will also be removed as the air flow which is used for the gaseous classifying operation and which is so adjusted as to be capable of entraining a brown coal or lignite grain size of 0.5 mm at maximum will of course also entrain brown coal or lignite grains which are of smaller size.
text: This also has the necessary result that brown coal or lignite in the grain size range of from 0 to 0.1 mm, which is therefore below the above-mentioned range of from 0.1 to 0.5 mm, will also be removed as the air flow which is used for the gaseous classifying operation and which is so adjusted as to be capable of entraining a brown coal or lignite grain size of 0.5 mm at maximum will of course also entrain brown coal or lignite grains which are of smaller size.