External multi-stage protection storage tank for preparing acid from sulfuric acid-containing waste liquid

• Main Authors: ZHOU YONGQUAN, ZHOU YONGYU, ZHU BUHAI
• Format: Patent
• Language: Chinese; English
• Published: 05.08.2022
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

The utility model relates to the technical field of storage tanks, in particular to an external multi-stage protection storage tank for preparing acid from sulfuric acid-containing waste liquid, which comprises a body, the outer surface of a fixing ring is in threaded connection with a threaded column, the outer surface of a first limiting ring is rotatably connected with a rotating block, the inner side wall of a rectangular groove is fixedly connected with a fixing column, and the inner side wall of the rectangular groove is fixedly connected with the rotating block. The outer surface of the torsion spring is fixedly connected with a connecting rod, the bottom of the body is fixedly connected with a first spring, and the top of the base is fixedly connected with a fixing plate. By arranging the threaded column, the first limiting ring and the rotating block, tightness of the device is improved, sulfuric acid liquid scattering caused by loosening of the blocking cover is avoided, convenience of the device is