Method for producing a homogenized mixture of carbon, sulfur, and PTFE
AssigneeNETZSCH Trockenmahltechnik GmbH
InventorsFrank Winter, Regina Dambach
Life of this patent
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Abstract
A method for producing a homogenized mixture of carbon, sulfur, and PTFE, wherein the sulfur is liquefied, and the liquid sulfur is then ground for the first time together with the carbon, so that the liquid sulfur is absorbed by the pores of the carbon particles and forms a preferably powdery composite with the carbon particles, whereupon PTFE is added and the mixture of the composite and the PTFE is then ground a second time and is thus homogenized.
Claims20
A method for producing a homogenized mixture of carbon, sulfur, and PTFE, comprising:
- liquefying sulfur into liquid sulfur,
- providing carbon in a form of carbon particles,
- combining the liquid sulfur with the carbon,
- introducing the combination of the liquid sulfur and the carbon into a mill,
- grinding the liquid sulfur together with the carbon for a first time via the mill, so that the liquid sulfur is absorbed by pores of the carbon particles and forms a powdery composite with the carbon particles, and
- adding PTFE with the powdery composite to form a mixture, and then grinding for a second time the mixture to homogenize the mixture, wherein said grinding for the second time is performed in the mill or in another mill,
- wherein the step of liquefying sulfur into liquid sulfur includes feeding the liquid sulfur to an injector and guiding the liquid sulfur via a feed line from the injector towards the mill, and
- wherein the step of combining the liquid sulfur with the carbon includes feeding the carbon into the feed line to form the combination of the liquid sulfur and the carbon.
A system for producing a homogenized mixture of carbon, sulfur, and PTFE, comprising:
- a first dosing screw having at least one heating element, which liquefies sulfur into liquid sulfur;
- an injector receiving the liquid sulfur;
- a second dosing screw providing carbon in a form of carbon particles;
- a feed line receiving the liquid sulfur from the injector and the carbon from the second dosing screw;
- a first mill connected to the feed line and grinding the liquid sulfur together with the carbon for a first time, so that the liquid sulfur is absorbed by pores of the carbon particles and forms a powdery composite with the carbon particles;
- a third dosing screw providing PTFE, which is added with the powdery composite in a storage container to form a mixture;
- and
- a second mill grinding for a second time the mixture to homogenize the mixture, wherein the first and second mills are impact mills arranged one behind the other in a transport direction of the mixture.
Dependencies are inferred from the claim text.