Reactor chamber door for large-scale coking reactors

Distillation: apparatus – Apparatus – Elements

Patent

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Details

202269, C10B 2506, C10B 2516

Patent

active

053954858

DESCRIPTION:

BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS

This application is a national phase application corresponding to PCT/EP91/00739 filed Apr. 18, 1991 and based, in turn, upon German applications P40 12 572. 6 and P41 03 504. 6 filed respectively Apr. 20, 1990 and Feb. 6, 1991 under the International Convention.
1. Field of the Invention
The invention relates to a reactor chamber door for large-scale coking reactors with a double sealing system.
2 Background of the Invention
From DE 25 32 097 C3 an oven chamber closure for a coking oven with horizontal chambers, which has a double sealing system, is known. Thereby the two seals fastened to the rigid door body together with the metallic walling of the door body, the door frame and the wall protection plates, as well as with further adjacent metallic walling frames, form the so-called pre-chamber. This closure pertains to a very complicated coke oven door with rigid door body made of a casting and a heavy brick lining connected thereto. A compensation of the door-frame deformations caused by temperature is possible only to a limited extent in this known door structure and the pertaining sealing systems.


OBJECT OF THE INVENTION

It is the object of the invention to propose a reactor chamber door for large-scale coking reactors with extra large chamber volume, wherein the drawbacks of known chambers do not occur.


SUMMARY OF THE INVENTION

In order to solve this problem, the invention proposes a reactor chamber door consisting of an outer door and an inner door, which are releasably interconnected and optionally can be handled separately, each of them having its peripheral door sealing system, elastically compressible against the chamber frame.
In this reactor chamber door the outer door and the inner door are loosely interconnected, so that one of the two doors can be replaced in a simple manner for maintenance and repair. Besides, the outer door and the inner door each have their own door sealing system with their own elastic compressibility against the chamber frame. The outer and the inner door can be connected to each other by interengaging support claws and girders in such a manner that the support claws arranged on the inside of the outer door engage underneath the girders provided on the outside of the inner door. This construction can be compared to the door removal devices in conventional coke ovens. It has the advantage that the outer and the inner door can be commonly inserted into, respectively removed from the door openings of the reactor chamber.
Contrary to the multipart coke oven door described in the EP 0 154 232 B1, wherein the inner part is held in dogs of the oven frame and the oven frame has to withstand the pressure exerted by the content of the oven chambers, according to the invention the inner door is not suspended from the chamber frame and the pressure forces exerted by the content of the reactor chamber on the door lining are transmitted to the support frame of the outer door via lining holders, door contact areas between the inner and the outer door, optionally spacers and/or adjusting screws.
According to the invention, the inner door consists of a high temperature membrane covering the entire door opening and which is peripherally compressible against the chamber frame. This is a metal on metal seal arranged in the hot zone. Due to the high temperatures in this zone there are no deposits of tar condensate, so that this seal is maintenance free to a large extent. In order to compensate the deformations between the door frame and the high temperature membrane, leaf springs are adjustably fastened to the support construction for the lining holders, which press the high temperature membrane from the outside against the chamber frame.
The door sealing system at the outer door consists of a membrane covering the entire door opening with a peripheral seal, elastically compressible against the chamber frame, preferably a soft seal designed like a solid profile or a tube. It has been proven that in the double sealing system of the invention, t

REFERENCES:
patent: 2200403 (1940-05-01), van Ackeren
patent: 4067778 (1978-01-01), van Ackeren et al.

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