Collector pipes vary in diameter with distance from the connection to air supplying trunk; this is to provide equal pressure of air in each tuyere.
12.
Initial tests of the bottom injection of oxygen were carried out on a small scale at Imperial College, London, using a nitrogen-shrouded tuyere.
13.
"' Ch . 5 "': Max Allgood, Boumard and Igan arrive at the Hall of Counsel for an audience with the Tuyere.
14.
A number of Herbert's other common themes pop up, including his interest in complex, rigidly codified or ritualized behaviors, reflected in the precise etiquette expected of those granted an audience with the Tuyere.
15.
Oil, tar, natural gas, powdered coal and oxygen can also be injected into the furnace at tuyere level to combine with the coke to release additional energy and increase the percentage of reducing gases present which is necessary to increase productivity.
16.
The trial excavations took place during a period of eight days . The finds included objects of wrought iron, a quantity of iron slag, fragments of tuyere, pottery, figurine fragments, red ocher, quartz hammer-stones, and small concentrations of charcoal.
17.
The PCI method is based on the simple concept of primary air ( termed the " conveying gas " ) carrying pulverized coal which injected through a lance to the tuyere ( mid-bottom inlet of a blast furnace ), then mixed with secondary hot air ( termed the " blast " ) supplied through a blowpipe in the tuyere and then piped to a furnace to create a balloon-like cavity called a " raceway ", which then propagates coal and coke combustion and melts the solid iron ore, releasing molten iron.
18.
The PCI method is based on the simple concept of primary air ( termed the " conveying gas " ) carrying pulverized coal which injected through a lance to the tuyere ( mid-bottom inlet of a blast furnace ), then mixed with secondary hot air ( termed the " blast " ) supplied through a blowpipe in the tuyere and then piped to a furnace to create a balloon-like cavity called a " raceway ", which then propagates coal and coke combustion and melts the solid iron ore, releasing molten iron.
