(I) The form of the bottom structure of the electric pick-up and transport stop The three bottom structures of the funnel, the trench and the flat bottom are all suitable for electric transport .
(II) Arrangement of electric roadway When the thickness of the ore body is below 15m , the electric roadway is generally arranged along the strike. When the thickness of the ore body is greater than 15m , the electric roadway is arranged vertically. In the case of no mine roadway, there is at least one ore chute in each electric roadway. When the electric car is not directly loaded, the length of the chute should be able to accommodate more than one train.
The length of the electric roadway is determined according to the reasonable transportation distance and related requirements.
When designing an electric roadway, the following requirements should be met:
( 1 ) In order to pull out the ore of the last mining port, the length of the electric roadway beyond the last mining port shall not be less than 5.5~6m .
( 2 ) In order to prevent the electric winch from being affected by secondary crushing, the length of the winch chamber is generally 4~5.5m , and the safety distance from the side of the mine chute to the winch is 2~3m .
( 3 ) The junction of the electric roadway and the ore chute should be appropriately widened to protect the safety of pedestrians.
( 4 ) The distance from the edge of the nearest ore out of the mine shall be not less than 4m , so as to avoid the large ore directly rolling into the slip .
(III) Bottom structure roadway specifications The bottom structure roadway includes electric roadway, bucket and neck. The detail of the funnel-type bottom structure.
The specification of the electric roadway is generally 2*2m , and the net section after the support is not less than 2*1.8m . The specifications for the bucket and neck are generally 1.8*1.8 or 2.2*2.2m . In order to reduce the funnel jam and improve the ore's fluidity, under the condition that the ore rock has good stability, some mines will increase the specifications of the electric roadway, bucket and neck to 2.5*2m or 2.5*2m . However, the cost of excavation has increased slightly, and it is more difficult to seal the bucket during the mining process. From the perspective of domestic mine use, in the more stable ore, it is better to adopt larger specifications, and in the case of ore with good ore breakage, small or unstable, use smaller specifications. It is appropriate.
During the construction of the bottom structure roadway, the bucket should be drilled and kept to improve the stability of the bottom column and improve the ore-extracting conditions. The relationship between the funnel neck and the electric ramp should be such that the inclined surface of the ore that is slipped naturally occupies 1/2 to 1/3 of the width of the electric roadway. At this time, the eel is the most favorable.
(II) Arrangement of electric roadway When the thickness of the ore body is below 15m , the electric roadway is generally arranged along the strike. When the thickness of the ore body is greater than 15m , the electric roadway is arranged vertically. In the case of no mine roadway, there is at least one ore chute in each electric roadway. When the electric car is not directly loaded, the length of the chute should be able to accommodate more than one train.
The length of the electric roadway is determined according to the reasonable transportation distance and related requirements.
When designing an electric roadway, the following requirements should be met:
( 1 ) In order to pull out the ore of the last mining port, the length of the electric roadway beyond the last mining port shall not be less than 5.5~6m .
( 2 ) In order to prevent the electric winch from being affected by secondary crushing, the length of the winch chamber is generally 4~5.5m , and the safety distance from the side of the mine chute to the winch is 2~3m .
( 3 ) The junction of the electric roadway and the ore chute should be appropriately widened to protect the safety of pedestrians.
( 4 ) The distance from the edge of the nearest ore out of the mine shall be not less than 4m , so as to avoid the large ore directly rolling into the slip .
(III) Bottom structure roadway specifications The bottom structure roadway includes electric roadway, bucket and neck. The detail of the funnel-type bottom structure.
The specification of the electric roadway is generally 2*2m , and the net section after the support is not less than 2*1.8m . The specifications for the bucket and neck are generally 1.8*1.8 or 2.2*2.2m . In order to reduce the funnel jam and improve the ore's fluidity, under the condition that the ore rock has good stability, some mines will increase the specifications of the electric roadway, bucket and neck to 2.5*2m or 2.5*2m . However, the cost of excavation has increased slightly, and it is more difficult to seal the bucket during the mining process. From the perspective of domestic mine use, in the more stable ore, it is better to adopt larger specifications, and in the case of ore with good ore breakage, small or unstable, use smaller specifications. It is appropriate.
During the construction of the bottom structure roadway, the bucket should be drilled and kept to improve the stability of the bottom column and improve the ore-extracting conditions. The relationship between the funnel neck and the electric ramp should be such that the inclined surface of the ore that is slipped naturally occupies 1/2 to 1/3 of the width of the electric roadway. At this time, the eel is the most favorable.
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