摘要:
The specification discloses a mobile coke quenching apparatus accommodated to the control of air pollution. The apparatus comprises two adjacent oppositely rotating hoppers between which a wedge-shaped bridge is tangentially disposed in centered alignment to an entrance doorway. The end of the bridge furthest from the doorway has a nose inclined upward and flared plowlike symmetrically to both sides. The entire coke oven charge being pushed is deposited on the bridge, moved toward the nose, and then forced away from the wedge-shaped bridge into the hoppers on either side by the plowlike action of the nose thereon. Conjoint action of the nose and rotation of the hoppers causes pile-up of the coke charge in a circular ridge at the top surface of the coke in the hoppers sufficiently to contain the entire coke oven charge being pushed. The coke oven charge is gravitationally deposited on the central area of rotary tables beneath the hoppers upon which it is quenched and across which it is impelled radially and removed at the peripheries thereof.
摘要:
A process for the production of metallized pellets, sponge iron or other metallized ores simultaneously with the production of a reductant coke and/or char wherein such process is carried on in a substantially airtight devolatilizing chamber having a roof, side walls and a rotary hearth forming the chamber. A carbonaceous material is fed into the devolatilization chamber and the volatiles evolved therefrom are employed for the reduction of the metallic oxides which have also been fed into the devolatilizing chamber with resultant simultaneous production of coke and/or char and metallized pellets, sponge iron or other metallized ores.
摘要:
A STRIP IS PERMANTENTLY ELONGATED BY APPLYING A TENSION FORCE TO IT AND CONSTRAINING IT WHILE UNDER TENSION TO AT LEAST ONE BEND AND AT LEAST ONE BEND REVERSAL WHICH CAUSES YIELDING AND AN INCREMENTAL ELONGATION STRAIN THAT IS PRODUCED BETWEEN A BEND AND A SUBSEQUENT BEND REVERSAL IN WHICH THE MAGNITUDE OF INCREMENTAL ELONGATION STRAIN IS RELATED TO THE APPLIED TENSION FORCE AND APPLIED BENDING STRAINS.
摘要:
The specification discloses and describes a method and means for determining concentration of evaporated solvent in gases emitted from a drying oven and delivered to an incinerator, by simple measurement of the temperature of gases constituting products of combustion exhausted from the incinerator. By maintaining the fuel input to the incinerator constant and also maintaining the temperature of the gases entering the incinerator constant, the variation of the temperature of the products of combustion emitted from the incinerator with respect to a standard value reflects the variation in the concentration of evaporated solvents supplied to the incinerator. A valve means, responsively controlled according to the temperature of the products of combustion emitted from the incinerator, functions to regulate the admission of a diluent, such as air, to the oven, thereby regulating the concentration of evaporated solvent to a substantially constant and safe value and effecting regulation of a uniform temperature of gas products of combustion at the outlet of the incinerator.
摘要:
A fluid cooled rabble construction comprising a plurality of conduits extending along the surface of the rabble. The conduits provide a passageway which is in the nature of a circuitous path and a suitable coolant is circulated therethrough to effect a cooling of the rabble. The rabble may comprise a box-like element formed of steel or the like to which the conduits are secured or the rabble may comprise a structure composed entirely of a suitable refractory or a combination of a refractory and a steel face and edges.
摘要:
A method for sealing and cooling the component slot members between the stationary hearth and movable beam or beams in walking beam furnaces by injecting air into the slot in such a manner that the air jets create a stagnation plane within the slot to maintain an equilibrium with the furnace pressure while impinging on the beam members and simultaneously cooling it.
摘要:
A fuel incineration system for a calciner wherein materials undergoing treatment therein evolve volatiles when subjected to a heat treatment and wherein some of these evolved volatiles and carbon particles entrained therein as well as carbon particulates entrained in fluid streams derived from quenching areas associated with the calciner are directed to an incinerator area intermediate the calciner and the flue stack and mixed with air and/or oxygen to combust some of these volatiles and carbon particulates in this area prior to their entry into the flue stack and any unburned volatiles and particulates escaping from the incinerator area are mixed with combustion air admitted at the lower portion of the flue stack to combust in the area of the stack so as to emit from the stack a gas essentially free of any combustible materials.
摘要:
A multiple feed for a rotary hearth calciner having a plurality of sets of rabbles arranged to engage with the materials in row form from the entrance portion of the hearth to the exit or discharge end thereof. The arrangement of the rabbles are such as to permit for the feed on to the hearth of the furnace materials of differing characteristics and to retain such differing materials in a separate state or row upon the hearth until the same are withdrawn from on to the hearth and directed to a suitable discharge or exit area. In certain instances, and where desired, the materials of one row may be caused to mix with the materials in the next adjacent row and to remain in such a mixture throughout the travel of the materials on the hearth.
摘要:
A method and apparatus for the thermal decomposition of limestone or other mineral substance wherein the apparatus employed for carrying out the method combines a vertical shaft for the feed therethrough of the materials to be treated and a rotary hearth positioned therebeneath. The rotary hearth is contained within a substantially airtight enclosure and receives the downward flow of the materials from the central shaft and further processes the same to produce the desired resultant product.