Silicon carbide furnace
AssigneeDresser Industries, Inc.
InventorJames D. Phillips
Life of this patent
Estimating the term…
Abstract
Electrical resistance furnace and manufacturing plant for the preparation of silicon carbide utilizing a resistance core of carbon horizontally inserted within the load and having a broken ring configuration.
Claims10
A silicon carbide manufacturing plant comprising:
- an electrical power source;
- a furnace enclosure;
- an electrical resistance furnace disposed within the enclosure and operated by electric heating for the preparation of silicon carbide from a load of silicious and carbonaceous material;
- the current being supplied by means of electrodes through a resistance core of carbon horizontally inserted within a load, said core and load being of broken ring configuration to define a centrally located circular working space;
- means for loading the furnace in said broken ring configuration including a material handling device supported for rotation at the center of said working space for placing said load about said core;
- and
- means for unloading the furnace.
In an electrical resistance furnace operated by electric heating for the preparation of silicon carbide from a free-standing load of silicious and carbonaceous material, the current being supplied by means of electrodes through a resistance core of carbon horizontally inserted within the load, the improvement comprising said core and load being of broken ring configuration for defining a centrally located working space;
- a material handling device supported for rotation at the center of said working space for placing said load about said core;
- and said load is free-standing and unrestrained.
A silicon carbide maufacturing plant comprising:
- a dome defining a non-combustible enclosure and having track means circumferentially connected to the inside surface of the side walls of the dome;
- an electrical power source;
- a free-standing pile of silicious and carbonaceous material located within the enclosure and being shaped in a broken ring configuration to define a centrally located circular working space;
- a source of electrical power including a pair of spaced electrodes;
- a resistance core shaped in a broken ring configuration to provide spaced end points and being horizontally inserted within the pile of material, with one of said electrodes being connected to one of said end points and the other of said electrodes being connected to the other of said end points, with electrical current being supplied from said electrical power source through said electrodes to said resistance core to heat said material;
- and
- material handling means for loading said pile of material in said broken ring-like configuration including support means located at the center of said working space and a stacking device having one end rotatably mounted on said support means and including a discharge member for discharging said material as said device is rotated to form said broken ring pile, the other end of said stacking device being supported by said track means for relative movement between said device and said dome.
Dependencies are inferred from the claim text.