摘要:
The present invention presents a solution for limiting access rights in a building, which building contains a conveying system, an access control system connected to the conveying system, which access control system comprises at least one short-range identification point and at least one long-range identification point and in which access control system passengers have a personal terminal device for giving service requests to the conveying system. A terminal device is taken into the operating area of a short-range identification point, the access rights connected to the service requests of the terminal device are activated, the terminal device is taken into the operating area of a long-range identification point and a service request generated with the terminal device is transmitted to the conveying system, if the access right connected to the service request is valid on the basis of the activation.
摘要:
The invention relates to a casting mould for manufacturing of a cooling element for a pyrometallurgical reactor, wherein the casting mould is at least partly cooled and lined with a material that can withstand high temperatures. The invention also relates to the cooling element made in the mould, inside which cooling pipes made of nickel copper are placed during fabrication.
摘要:
The invention relates to a method of fabricating a pyrometallurgical reactor cooling element with flow channels. In order to enhance heat transfer capability, the wall surface area of the flow channel, which is traditionally round in cross-section, is increased without increasing the diameter or length of the channel.