Title:
AUTOCLAVE ACID-FEEDING SYSTEM AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2023/131066
Kind Code:
A1
Abstract:
Disclosed in the present application are an autoclave acid-feeding system and control method, which relate to the technical field of smelting apparatuses and methods. The system comprises an autoclave, an acid-feeding pipeline and a ventilation pipeline, wherein one end of the acid-feeding pipeline is connected to the autoclave, and the other end thereof is connected to a pump, so that acid is pumped into the autoclave through the acid-feeding pipeline by means of the pump; the ventilation pipeline is connected to the acid-feeding pipeline, and is configured to introduce high-pressure gas in the ventilation pipeline into the acid-feeding pipeline when acid feeding is stopped, so as to prevent a material in the autoclave from flowing back; a second valve is provided on the ventilation pipeline and is used for controlling the communication state of the ventilation pipeline and the acid-feeding pipeline; and a first valve is provided on the acid-feeding pipeline, and is located between the pump and a connection point of the ventilation pipeline and the acid-feeding pipeline. According to the present application, the acid-feeding system is used for acid feeding, the high-pressure gas is introduced into the acid-feeding pipeline when acid feeding is stopped, so that the material in the autoclave is prevented from flowing back, being in contact with the valve and then corroding the valve; and in addition, introducing the high-pressure gas can achieve cooling, which further reduces the corrosion of the valve during acid feeding, thereby extending the service life of the valve and saving on production costs.
Inventors:
CHEN LONG (CN)
ZHAO PENGFEI (CN)
YIN SHUYAN (CN)
LU YEDA (CN)
YANG SHENGPING (CN)
CAI CHAO (CN)
XUE HAOYANG (CN)
ZHAO PENGFEI (CN)
YIN SHUYAN (CN)
LU YEDA (CN)
YANG SHENGPING (CN)
CAI CHAO (CN)
XUE HAOYANG (CN)
Application Number:
PCT/CN2022/143826
Publication Date:
July 13, 2023
Filing Date:
December 30, 2022
Export Citation:
Assignee:
CHINA ENFI ENG CORP (CN)
International Classes:
C22B3/02; C22B3/08
Foreign References:
| CN113999968A | 2022-02-01 | |||
| CN214937720U | 2021-11-30 | |||
| CN111118297A | 2020-05-08 | |||
| JP2019077914A | 2019-05-23 | |||
| JP2019157233A | 2019-09-19 |
Attorney, Agent or Firm:
GRANDER IP LAW FIRM (CN)
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