EBJ-120TP Roadheader application
Mining production team of more than 400 million t of convergence to complete, give full play to the advantages of the new equipment. As EBJ - 120TP-type integrated excavator with body short, compact structure, adapted to the North five District 2 thin coal seam thickness (thinnest 1.5m, roadway design height 2.2m) of the actual field conditions in 2006 Supplement Li Zhisheng: EBJ a 120TP Roadheader application conditions; cutting unit to cancel the telescopic cylinder, a cutting unit to ensure that the intensity of work, using small diameter cutting head, with the new process to produce high strength and durable cutter , single-handedly force, rock breaking and strong,
tods shoes outlet, pull the end of 500mm, to ensure the stability of surrounding rock tunneling, reducing the cut-off tooth loss. Hydraulic motor directly drives the star wheel loading mechanism, eliminating reducer, a loading mechanism to improve reliability. Conveyor belt loader and hydraulic circuit to optimize the configuration of power, to improve the system's ability to work. No-roller crawler, reliable performance, maintenance, J,. Oil hydraulic system with automatic fill system, closed tank to ensure cleanliness of oil. Electrical system using a programmable logic controller (PLC), and electronic protection and circuit breaker combination of protection,
######## oakley sunglasses, protection strong. Set up an independent power source for hydraulic bolt rig, can drive 2 sets of bolt rig, eliminating the bolt rig their own power source configuration. Use EBJ - 120TP-type integrated digging machine, reducing ineffective working time, save manpower, equipment accidents and reduce the maintenance workload, shorten cycle times, improve work efficiency and single feed. 5 Problems comprehensive excavation host length 8.6m,
herve leger skirts, after the supporting frame buffer belt 20m long tail, turning in the tunnel can not open or continuous transport, relying on artificial Huo Coal transport solution, supporting the use of the track after the downpipe still exist within 20m of artificial transport issues. 6 into the direction of improvement in order to improve a single, fully integrated excavator and performance, need to dig in a comprehensive process to improve on the reasonable assurance That increasing the driving speed and quality of the premise, supporting further accelerate the speed and quality, the integration direction to dig the anchor, which is the comprehensive development goals and direction of excavation. EBJ - 120TP-type integrated excavator set up an independent power source for hydraulic bolt rig, can drive 2 sets of bolt rig, eliminating the bolt rig their own power source configuration. Can make improvements in technology, and rational optimization of the construction process to achieve the integration of the anchor dig, the technology has started to Shandong Yanzhou applications. I believe the near future, with the further development of comprehensive excavation technology, EBJ a 120TP-based integrated mining excavation opportunity to achieve dig the anchor in the integration of the Western Hills. Received 2006 an O3-11 (on the next page 28) 15. , Such as taking Eo a 30000MPa, Mc a 0.15, T eleven 15. , The maximum shrinkage stress of up to 5.29MPa. This stress on the pouring of new concrete pavement, as the final setting of the mixture in a very short time after the tensile stress permitted in low, horizontal concrete pavement usually occurs through the cracks,
mbt cipő, since under the action of the wheel load, there will be mud jack and destruction. Therefore, in construction, should try to control temperature, according to the provisions of timely sawing contraction joints, while improving the flatness of the grassroots, grass roots and to reduce friction between the surface layer. 2) warping stresses. As the concrete slab, grass-roots, soil-based thermal conductivity performance is poor, when the temperature changes quickly, the concrete slab surface and the bottom plate have temperature, and thus the bottom plate and top plate of the expansion and contraction deformation of different sizes. These in turn deformed by the board's weight, ground reaction force and the role of the adjacent panels to contain, resulting in temperature warping stresses. Consider the current focus of China's highway load stress and temperature warping stresses generated both in terms of overall fatigue. Practice shows that the cement concrete pavement control the 5m or so long, it seldom warping due to temperature stress and damage, and stress control by warping space to determine the contraction joints are generally less than by concrete shrinkage control determined on the uniform The expansion joint spacing, so the former can be met, which can meet the requirements. This is the In order to control the construction of concrete pavement warping stress effects that, generally based on Temperature stress-induced cracks in concrete pavement, usually in the construction of the second day will be able to find, because the early strength of concrete is low. In fact the maximum load stress the maximum stress and temperature warping board in the same location, same time have the probability is not high. Therefore, the larger strength reduction can be checking the strength of pavement. Experience,
######## oakley sunglasses, contraction joints spaced at 4 ~ 6m, can meet the requirements. Received 2006 an O3-15
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