Abstract:
The present invention enables to detect and record the coke temperature throughout the surface of the drawing ramp (1) by means of temperature sensors (3) mounted above the ramp and, when portions of coke which are too hot are discovered, to automatically and over the shortest possible duration only on those hot portions by using a concentrated water jet.
Abstract:
In a process for treating coal pyrolysis effluent, the effluent is filtered (6, 10), distilled (13) and separated by reverse osmosis (20, 21, 22) into a permeate of low salt concentration which can be recycled to the coking process and a concentrated salt solution. The concentrated salt solution (32) is split either wholly or in part, in a hot reducing atmosphere (41), and the salts separated. According to the invention, the concentrated salt solution is placed, either wholly or in part, in contact with the hot chamber coke in a closed, gasifying, coke cooling stage (50) in order to decompose the noxious substances in said salt solution and to utilize the oxygen fraction by the formation of oxygen and carbon monoxide.
Abstract:
A process for the cooling of and the removal of dust from high-temperature coke in at least two stages, whereby the coke is cooled in the first stage to less than about 800 DEG C. In this first cooling stage (1), the coke is cooled to a temperature of between 200 DEG and 800 DEG C, and preferably to between about 400 and 650 DEG C; it is then quickly and continuously drawn through a water bath (8), after which it is held in the steam-laden atmosphere of a sealed re-evaporation chamber (14).
Abstract:
In a process for thermal treatment of contaminated bulk materials in a calcination step in order to dispose of or remove toxic comonents, the gases containing the toxic substances which are evolved during the calcination step are evacuated to atmosphere after a final purification step. The invention also concerns a device for implementing the process. The calcination of contaminated bulk materials is carried out in an indirectly and/or directly heated and in particular continuously operated vertical shaft oven (3).
Abstract:
In a coking system, charges of carbonizing mixtures, in particular on the basis of hard coal, are supplied to a reactor (1) indirectly heated by heat recovery in regenerators (I, II) or recuperators. The reactor is a large volume coking reactor (100), several large volume coking reactors are gathered in a reactor block and the large volume coking reactors form each an independent module. Each module can be operated and if necessary exchanged independently from its adjacent modules, with little or no interference with the operation of the adjacent modules. The individual reactors can be statically and thermally operated independently from each other. The regenerators or recuperators (I, II, R, R') can be arranged next to or below the reactor chamber. Adjacent reactors can share a common separating wall (2).
Abstract:
A process is disclosed for treating crude coking gas at high temperatures. Coal charges are coked in a large-capacity coking reactor or in a conventional battery of multiple-earth coke ovens, and the thus obtained crude gas is subjected to a high temperature treatment. The resulting crude cracked gas replaces conventional coke oven gas as an ecological source of energy or may be used as reduction gas for ore reduction. Also disclosed is a device for carrying out the process. This process should permanently improve the economic and ecological situation of coking plants associated to steel works. The high temperature treatment is integrated into the coking system and carried out at temperatures above 800 DEG C, preferably from 900 to 1300 DEG C, with admixture of the required amount of oxidising agent within the coking chamber and/or the hot area of the oven block.
Abstract:
Heating system for regenerative coke oven batteries heatable with rich, and/or lean or mixed gas, comprising vertical flues grouped in pairs connected to regenerators for preheating the air or, in lean gas operation, the lean gas or mixed gas. The invention comprises a combination of the following features: a) The combustion air is introduced through outlet openings arranged at at least three different heights in each flue. One outlet opening at the base of the flow is connected directly to the regenerators and the outlet openings arranged above the first are connected to the regenerators via hollow connecting passages arranged in the connecting walls or via separate passages. b) The regenerators for preheating the air are divided in the longitudinal direction of the oven. One part is connected to the outlet openings at the base of the flue, the other part is connected to the hollow connecting passages or to the separate passages, and the volumes of air for the two parts can be adjusted separately from outside. c) The outlet openings above the bottom of the flue are provided with externally adjustable sliding blocks for adjusting the distribution of air. d) Closable openings (cross-flow openings) which direct the internal flue gas flow are arranged at the base of the flue in the connecting wall between the upward-conducting and downward-conducting flues.
Abstract:
In a coking system, charges of carbonising mixtures, in particular on the basis of hard coal, are supplied to a reactor (1) indirectly heated by heat recovery in regenerators (I, II) or recuperators. The reactor is a large-volume coking reactor (100), several large volume coking reactors are gathered in a reactor block and the large volume coking reactors form independent modules. Each module can be operated and if necessary exchanged independently from its adjacent modules, with little or no interference with the operation of the adjacent modules. The individual reactors can be statically and thermally operated independently of each other. The regenerators or recuperators (I, II, R, R') can be arranged next to or below the reactor chamber. Adjacent reactors can share a common separating wall (2).