Hot slurry pump

Abstract

A hot slurry pump includes at least one working chamber, at least one displacement chamber which is arranged to be immobile with respect to the at least one working chamber, at least one transfer line, and one separator arranged in each of the at least one transfer line. The at least one transfer line either does not comprise a cooling section or comprises a cooling section having a length of less than 5 m.

What is claimed is: 
     
         1 - 7 . (canceled) 
     
     
         8 . A hot slurry pump comprising:
 at least one working chamber;   at least one displacement chamber which is arranged to be immobile with respect to the at least one working chamber;   at least one transfer line; and   one separator arranged in each of the at least one transfer line,   wherein,   the at least one transfer line either does not comprise a cooling section (K) or comprises a cooling section having a length of less than 5 m.   
     
     
         9 . The hot slurry pump as recited in  claim 8 , wherein the length of the at least one transfer line is less than 3 m. 
     
     
         10 . The hot slurry pump as recited in  claim 8 , wherein a compensation device configured to compensate a thermal length expansion of the at least one transfer line is not provided. 
     
     
         11 . The hot slurry pump as recited in  claim 8 , wherein,
 the at least one displacement chamber comprises a diaphragm, and   the diaphragm comprises a material comprising a high-temperature material.   
     
     
         12 . The hot slurry pump as recited in  claim 11 , wherein the material further comprises a fluoroelastomer. 
     
     
         13 . A method of pumping a hot slurry with the hot slurry pump as recited in  claim 11 , the method comprising:
 separating the hot slurry being pumped from a cooler reciprocating fluid via the one separator so as to achieve a reciprocating fluid temperature which can be tolerated by the diaphragm in the at least one displacement chamber,   wherein, the reciprocating fluid is not actively cooled.   
     
     
         14 . The method as recited in  13 , wherein a thermal length expansion of the at least one transfer line is not compensated.