Plant and method for producing urea granules
Assigneesthyssenkrupp Fertilizer Technology GmbH, thyssenkrupp AG
InventorHarald FRANZRAHE
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Abstract
An installation for the production of granular urea, having at least one urea granulator, at least one dust scrubber, at least one concentrating device, and at least one condensation device, wherein an exhaust gas flow from the urea granulator can be fed to the dust scrubber, wherein the exhaust gas flow is washed in the dust scrubber, wherein at least one outflow from the dust scrubber can be fed to the concentrating device, wherein the outflow can be concentrated in the concentrating device, wherein the vapors created during concentration can be fed, at least in part, to the condensation device, and wherein the vapors are at least partially condensed in the condensation device.
Claims15
1-14. (canceled)
An installation for the production of granular urea, comprising:
- an urea granulator;
- a dust scrubber;
- a concentrating device;
- and
- a condensation device, wherein an exhaust gas flow from the urea granulator is arranged to be fed to the dust scrubber, wherein the exhaust gas flow is configured to be washed in the dust scrubber, wherein at least one outflow from the dust scrubber is configured to be fed to the concentrating device, wherein the outflow is configured to be concentrated in the concentrating device, wherein vapors created during concentration are configured to be fed, at least in part, to the condensation device, and wherein the vapors are at least partially configured to be condensed in the condensation device, and possible deposits of non-water-soluble substances in the condensation device are avoided during operation or removed from the condensation device during operation.
A method for the production of granular urea, comprising:
- washing an exhaust gas flow from a urea granulator in a dust scrubber, wherein at least one outflow from the dust scrubber is concentrated and fed to the urea granulator;
- and
- condensing vapors produced during concentration at least in part in a condensation device;
- and
- removing deposits of non-water-soluble substances in the condensation device from the condensation device during operation.
Dependencies are inferred from the claim text.