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Furthermore, United States Patent No. 2,289,569 relates generally to powder metallurgy and more particularly to a low melting point alloy powder and to the usage of the low melting point alloy powders in the formation of sintered articles.
These products are also transported to the ground through energy transmission pipelines in the main shaft.Additionally, the gas extraction equipment in the supporting module can extract gas from the coal seam (on both sides of the roadway) during excavation to prevent potential gas explosions or coal–gas outbursts. The sorted gangues are raised to the ground via the main shaft for subsequent backfilling of the goaf. Additionally, the chemical grouting equipment in the supporting module injects a special chemical slurry into coal seams on both sides of the roadway to reinforce the walls. The extracted gas is then transported to the underground gas power station (Fig. 4) via the energy transmission pipelines embedded in the roadways for power generation. The sorted coal is transformed into fluidized energy sources and electricity in the fluidized conversion chamber. The electricity is subsequently transmitted to the ground through energy transmission pipelines in the main shaft. The coal and gangue broken by the cutter-head during excavation are sent to the rear of the supporting module through a conveyor belt and are discharged and transported to the fluidized conversion chamber via underground intelligent shuttle cars (Fig. The anchor drilling rigs in the supporting module are used to support the interior of the vertical shafts and roadways during excavation. Furthermore, the lining installation equipment installs all-around, high-strength lining supports for the excavated vertical shafts and roadways to ensure long-term stability at these locations. 4).
An Investigation on the Mechanical and Dynamic Rheological Properties of Single and Hybrid Filler/Polypropylene Composites Based on Talc and Calcium Carbonate[J].Azizi H, J Faghihi. Composite, 2009, 30:1 743–1 749. Polym.
In the second period (July 2013–April 2014), the mixture was changed to 70% of straw, 27% of wood, and 3% of lime. In both periods, the biomass was prepared for combustion in the form of pellets with a diameter of 8 mm (Figure 1). After applying the lime, this problem was radically reduced, allowing the furnace operation. As a result, damage of the furnace internal elements, including burners, was noted. The change was forced by a large emission of chlorine during the combustion processes.In the first period of pellet use (February–April 2013), pellets were prepared from a mixture of 80% of straw and 20% of wood.
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