The proximal end of the ulna articulates with the trochlea of the humerus. To enable movement at the elbow joint, the ulna has a specialised structure, with bony prominences for muscle attachment. Important landmarks of the proximal ulna are the olecranon, coronoid process, trochlear notch, radial notch and the tuberosity of ulna: 1  Olecranon â A large projection of bone that extends proximally, forming part of trochlear notch. 2  Coronoid process â This ridge of bone projects outwards anteriorly, forming part of the trochlear notch.
Metallurgical coke is produced by the destructive distillation of coal in coke ovens. Prepared. coal is heated in an oxygen-free atmosphere (âcokedâ) until most volatile components in the coal are. removed. The material remaining is a carbon mass called coke. Metallurgical coke is used in iron and steel industry processes (primarily in blast furnaces) to. reduce iron ore to iron. Over 90 percent of the total coke production is dedicated to blast furnace. operations.
Wet Coal Scrubbers. There are two types of scrubbers used: wet and dry. Both use limestone, which reacts with sulfur to remove it from the air. In wet scrubbers, limestone powder is mixed with water and sprayed into the smokestack.As hot gasses from the coal plant blow through it, they come in contact with the water vapor.ry coal scrubbers are a different way to do the same thing. Instead of being mixed with water a lot of water, the limestone is blown into the stack dry or with a bit of moisture.