Slag seal

In 1986 Britannia Refined Metals (Northfleet, U.K.) introduced technology for the treatment of Parkes cmst, a triple alloy of Ag, Zn, Pb, which by 1992 had been adopted by seven lead refineries (22). The technology consists of a three-stage process in which the silver-rich cmst is first Hquated to reduce its lead content, then placed in a sealed furnace where the 2inc is removed by vacuum distillation and, finally, the silver—lead metal is treated in a bottom blown oxygen cupel (BBOC) to produce a Htharge slag and dorn metal. 

The seal must also resist the vibrations from the explosions of internal combustion in the engine, chassis and wheel vibrations, and even potholes in the road. This seal must resist strong chemicals (anti freeze, anti-rust agents, radiator stop-leak and sealant chemicals, gasoline and lubricant residuals), and also solid particles (rust, iron slag, minerals, asbestos fibers, and silica from the engine casting mold). In spite of all this, the mechanical seal on the water pump of your car can run 7, 10, even 15 years without problems. 

Figure 3. Profile of melting furnace (1) upper seal valve (2) lower seal valve (3) inflammable gas outlet (4) drying zone (5) py roly zing zone (6) melting zone— high temperature (7) molten slag (8) oxygen-enriched air inlet—tuyere (9) blast header (10) slag granulation...

Essentially a Brookfield Rheolog was used to replace head in the rotating cylinder slag corrosion apparatus lag/refractory corrosion studies at Argonne National (ANL) (J ). Appropriate seals and ceramic structural permit maintenance of the desired low oxygen activity measuring chamber. The viscosity measuring bob was a... 

Because of the popcorn, clinker-like low durability nature of some BA particles, BA has been used more frequently in base courses than wearing surfaces. Boiler slag has been used in wearing surfaces, base courses and asphalt surface treatment or seal coat applications... 

The heat in the reactor causes the formation of slag from mineral ash and this is removed from the bottom of the gasifier through a water seal. Gases and vaporized hydrocarbons produced by the coal at medium temperatures immediately pass through a zone of very high... 

Figure 1. Overview of some cooled smelting furnace structures, a) Elkem Multi-Purpose Furnace , b) electrode seal, and c) slag flow controller [4]. Cooled structures include freeze-lined sidewalls, electrode clamps and collar, feed chutes, tap hole and slag flow controller.

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