EP 0150819 A2 19850807 - Device and method for wet cleaning of coking furnaces.
Title (en)
Device and method for wet cleaning of coking furnaces.
Title (de)
Vorrichtung und Verfahren zur Hochdruckwasserreinigung von Verkokungsöfen.
Title (fr)
Dispositif et procédé pour le nettoyage à haute pression des fours à coke.
Publication
Application
Priority
- DE 3402920 A 19840128
- DE 3439457 A 19841027
- DE 3439458 A 19841027
Abstract (en)
[origin: US4690160A] The sealing surfaces of a coke oven door are cleaned with high-pressure fluid by a hydraulically operated high-pressure piston pump which displaces either a hot or a cool conveyed media ladened with solid particles such as a coal mass and a fluid for cleansing the sealing surfaces of the coke oven doors and door frames. The pump includes a closed pump cylinder having an inlet and outlet valve for a conveyed medium at both ends of the cylinder and a partition dividing the cylinder. Inlet and outlet valves for hydraulic fluid are located in the cylinder on each side of the partition. An inner double piston is axially movable to and fro with the cylinder and comprises two output piston portions with a piston rod connected to each portion and located between them guided on bearings in the cylinder. A delivery space is formed between the piston portions and each end of the pump cylinder and the respective delivery spaces at each end simultaneously and oppositely decrease and increase during an operation. The hydraulic space is formed between the piston portions at each side of the partition and the hydraulic space also simultaneously and oppositely increase and decrease during operation. The pump is connected to a coke door cleaning apparatus for the purpose of cleaning an annular sealing surface. The apparatus includes a generally rectangular annular sealing surface trackway around the sealing surfaces of the door and a support structure adjacent the sealing surface having a sliding support surface trackway adjacent the door. A sliding support moves over the support surface. A nozzle lance is carried on the support and has an end with a nozzle directed at the sealing surface and an opposite end with a cleaning liquid connection through a hose to the high-pressure piston pump.
Abstract (de)
Die Erfindung bezieht sich auf eine hydraulisch angetriebene Hochdruck-Kolbenpumpe zur Förderung von heissen oder kalten Fördermedien mit Feststoffpartikeln, wie z.B. einer Kohlenmaische. Die Pumpe besteht erfindungsgemäss aus einem geschlossenen Pumpenzylinder mit Ein- und Austrittsventilen für das Fördermedium an den beiden Enden des Pumpenzylinders und Ein- und Austrittsventilen für die Hydraulikflüssigkeit beidseitig neben einer mittleren in dem Pumpenzylinder befestigten Trennwand und einem inneren in Achsrichtung des Pumpenzylinders in diesem hin- und herbeweglichen Doppelkolben, bestehend aus den beiden äusseren Kolben und einer oder mehreren diese verbindenden Kolbenstangen, die durch eine oder mehrere Gleitlager in der Trennwand geführt sind und den beiden gegensinnig gleichzeitig grösser und kleiner werdenden äusseren Förderräumen zwischen den Kolben des Doppelkolbens und den Stirnwänden des Pumpenzylinders sowie den beiden ebenfalls gegensinnig gleichzeitig grösser und kleiner werdenden Hydraulikräumen zwischen der Trennwand und den Kolben des Doppelkolbens.
IPC 1-7
IPC 8 full level
C10B 43/08 (2006.01); F04B 9/115 (2006.01); F04B 15/02 (2006.01); F04B 53/14 (2006.01)
CPC (source: EP US)
C10B 43/08 (2013.01 - EP US); F04B 9/115 (2013.01 - EP US); F04B 15/02 (2013.01 - EP US); F04B 53/143 (2013.01 - EP US)
Designated contracting state (EPC)
BE FR IT NL
DOCDB simple family (publication)
EP 0150819 A2 19850807; EP 0150819 A3 19851127; EP 0150819 B1 19890614; US 4690160 A 19870901
DOCDB simple family (application)
EP 85100730 A 19850125; US 69544385 A 19850128