中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

5 records (took 0.037 seconds)

    AMMONIA HEATING GROUP FOR MELAMINE PRODUCTION PLANTS AND MELAMINE PRODUCTION PLANT USING THE SAME
    2.
    发明公开
    AMMONIA HEATING GROUP FOR MELAMINE PRODUCTION PLANTS AND MELAMINE PRODUCTION PLANT USING THE SAME 审中-公开

    公开(公告)号：EP4442682A1

    公开(公告)日：2024-10-09

    申请号：EP24168297.0

    申请日：2024-04-03

    Applicant: Proman AG

    Inventor： DE AMICIS, Alberto ,  DI RUOCCO, Giuseppe ,  SANTUCCI, Roberto

    IPC: C07D251/60 ,  F28D7/00 ,  F28D7/10 ,  F28D20/00

    CPC classification number: F28D7/106 ,  F28D7/0066 ,  F28D2020/004720130101 ,  C07D251/60

    Abstract: The present invention relates to a heating group for melamine production plants and to a melamine production plant using said group. The heating group (10) for melamine plants comprises a molten salt circuit (11) for supplying the reaction heat to a melamine plant (20) and a superheated ammonia supply unit (12) to the plant (20), the unit (12) comprising at least an evaporation exchanger (17) and a superheating exchanger (30), said unit being characterized in that the superheating exchanger (30) comprises at least one separate heat source (32) with respect to the molten salt circuit (11), said separate heat source (32) being superheated steam, said superheating exchanger (30) being a jacketed tube composed of two concentric tubes wherein the inner tube (31) is suitable for being traversed by a flow of ammonia to be superheated and the sealed outer tube or jacket (33) is suitable for being traversed by superheated steam, said inner tube (31) having an internal diameter which ranges from 20 mm to 85 mm, corresponding to lengths of the jacketed tube (30) ranging from 30 to 20 m respectively.

    ROTARY TYPE DRYER FOR DRYING WET MELAMINE
    5.
    发明公开
    ROTARY TYPE DRYER FOR DRYING WET MELAMINE 审中-公开

    公开(公告)号：EP4311992A1

    公开(公告)日：2024-01-31

    申请号：EP23187650.9

    申请日：2023-07-25

    Applicant: Proman AG

    Inventor： DE AMICIS, Alberto ,  DI RUOCCO, Giuseppe ,  SANTUCCI, Roberto

    IPC: F26B3/24 ,  F26B11/04 ,  F26B23/10

    Abstract: A rotary type dryer for the production of melamine comprising a rotating container comprising a cylindrical side wall and two end tube plates defining a cavity for containing the wet melamine, rotation means for rotating the container, insertion means for inserting the wet melamine into the cavity at a first end of the container, extraction means for extracting the dried melamine from the cavity at a second end of the container, and heating means in the form of tubes extending axially inside the cavity for heating the wet melamine contained in the cavity so as to dry it. The two tube plates comprise a first side facing inside the container, in particular towards the cavity, and a second side facing outside the container, in particular towards an external environment. The heating means comprise a first tube conducting water vapour from the second end to the first end and one or more second tubes conducting at least partly condensed water vapour and which are fluidly coupled outside the container to the first tube at the first end.

Patent Agency Ranking