Method of recovering and utilizing nitrocellulose boiling afterheat and direct water-vapor heat exchanger

The present invention discloses method of recovering and utilizing nitrocellulose boiling afterheat and the direct water-steam heat exchanger. Recovering the afterheat can lower the nitrocellulose producing cost greatly. The method includes the following steps: 1. conveying steam in 0.10-0.45 MPa pr...

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Bibliographische Detailangaben
1. Verfasser:	WEIZHI,XUE WANG
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOSITIONS BASED THEREON DERIVATIVES THEREOF GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACTWITHOUT CHEMICAL INTERACTION HEATING LIGHTING MECHANICAL ENGINEERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS POLYSACCHARIDES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR PREPARATION OR CHEMICAL WORKING-UP WEAPONS
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Beschreibung
Zusammenfassung:	The present invention discloses method of recovering and utilizing nitrocellulose boiling afterheat and the direct water-steam heat exchanger. Recovering the afterheat can lower the nitrocellulose producing cost greatly. The method includes the following steps: 1. conveying steam in 0.10-0.45 MPa pressure via pipeline to nitrocellulose boiling tank for boiling nitrocellulose; and 2. conveying the waste steam produced during boiling to the direct water-steam heat exchanger to heat the cold water and obtain hot water at 60-95 deg.c. The direct water-steam heat exchanger includes one hollow casing with water inlet, waste steam inlet and hot water outlet, and inside the casing, water and waste steam are mixed directly for heat exchange with greatly raised heat exchange efficiency and hot water temperature.