A Tower Crane is an inverted L-shaped structure that is capable of lifting several tons of weight to precarious heights.
The most striking feature of this crane is that it is self-building and can allow a building to be constructed adjacent to or even around it.
Tower crane mast section ( tower crane mast and tower crane basic mast ) is a steel structure with a normally square section, whose main mission is to provide the tower crane with sufficient height.
Normally it is formed by lattice modules that facilitate the transport of the crane. For assembly, these modules will be joined by screws, all of which will be connected to the projected height. Its shape and dimension vary according to the necessary characteristics of weight and height.
Overall, the mast section is a critical component of a tower crane, providing the necessary height and support for the crane to perform its lifting and moving operations.
BQ also supplying other Steel Structure spare parts of tower crane like Basic Mast Section, Fixing Angle (or Reusable Fixing Angle), Anchorage Frame,Telescoping Cage Jacking Cage, Tower Crane Yoke, Hook and so on.
Basic Mast Section,Tower Crane Mast,Crane Mast Section,Tower Crane Mast Section,Tower Crane Basic Mast SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.sytoplesstowercrane.com
B evaluation (1) advantages
(2) Disadvantages
A applicable conditions
The applicable conditions of the stage forced caving method are basically the same as those of the sublevel caving method. The thickness of the mining body is large, the shape is regular, the dip angle is steep, the surrounding rock is not stable, the ore value is not high, and the surrounding rock contains grade. The body of the ore.
1) The amount of mining work is small.
2) High labor productivity.
3) Mining costs are low.
1) The requirements for mine management are strict, the management is not good, and the loss of ore is depleted.
2) The bulk output rate is high, and the secondary crushing workload is large.
3) The conditions of use are not as flexible as the subdivision method.
(3) Technical and economic indicators. See Table 2 for the technical and economic indicators of the forced caving method in some mines in China.
(4) Evaluation. Compared with the deep hole mining plan, the drug room mining plan is obviously not good in terms of mining quantity and labor productivity, so the drug room mining plan is not used as much as possible. Deep mine off scheme, in particular perpendicular deep mine off scheme is an efficient, safe, low-cost method of mining, Soviet Tashtagol iron ore mining stage forced off the deep-hole caving is a successful example of .