Energy-saving and resource-saving system and process for producing melamine by using gas-phase quenching process

Energy-saving and resource-saving system and process for producing melamine by using gas-phase quenching process

CN
  • CN 102,219,754 A
  • Filed: 04/28/2011
  • Published: 10/19/2011
  • Est. Priority Date: 04/28/2011
  • Status: Active Application
First Claim
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1. gas phase quenching method melamine production system comprises:

  • The urea washing tower is in series with fluidized-bed reactor, hot gas water cooler, hot gas filtration device, crystallizer, melamine trap successively behind described urea washing tower, described melamine trap is connected with described urea washing tower;

    Be connected with the carrier gas preheater with described fluidized-bed reactor, described carrier gas preheater is connected with the carrier gas compressor;

    Described melamine production system also comprises the gas-liquid separator that is connected with described urea washing tower, and described gas-liquid separator is connected with described crystallizer, and described carrier gas compressor is connected with described gas-liquid separator;

    It is characterized in that, between described gas-liquid separator and described crystallizer, be provided with the cold air gas blower.

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