Reactor chamber door for large-scale coking reactors

A large-scale coking reactor, comprising:

• a coke oven housing provided with a coking chamber, an opening communicating with said chamber, and with outer and inner chamber frames around said opening;
• an outer door formed with a respective periphery and displaceable between closed position corresponding to covering a door opening in said housing and an open position, said outer door being provided with:
• an outer elastic peripheral seal compressible against said outer frame and juxtaposed with said periphery, and
• an outer high temperature membrane covering the entire opening and being operatively connected with said outer seal, said outer seal being pressed against said outer frame to seal said opening;
• an inner door spaced inwardly from said outer door and displaceable between a respective closed position corresponding to covering the opening and a respective open position, said inner door being formed with a respective periphery and being provided with:
• an inner high temperature membrane covering the entire opening and bearing peripherally upon said inner frame, and
• inner resilient means provided on said periphery of said inner door and connected with said inner membrane for compensating the deformation between the inner frame and said inner high temperature membrane upon changing of the temperature, said inner membrane being elastically fit to said inner frame in the closed position of said inner door, and
• connecting means for releasably interconnecting said inner and outer doors for joint movement upon opening of said doors but permitting relative movement of said inner and outer doors in said closed position.