INTELLIGENT FLOW CONTROL DEVICE AND METHOD FOR RARE EARTH EXTRACTION

WIPO Patent Application WO/2021/249074

A1

Disclosed in the present invention is an intelligent flow control device for rare earth extraction, relating to the technical field of rare earth extraction. The intelligent flow control device comprises: a housing, a material passing channel, a pressure sensing mechanism, a driving mechanism, a driven mechanism and a flow control mechanism. The driven mechanism comprises: a rotating wheel, an amplitude rod, a transmission part and a warning part. By means of the mutual cooperation of the pressure sensing mechanism, the driving mechanism, the driven mechanism and the flow control mechanism, the pressure sensing mechanism acquires the pressure value of a fluid in the material passing channel, the downward moving or upward moving distance of a main core of the flow control mechanism when a screw rod rotates by one full circle is then precisely controlled by means of the screw pitch of threads on the screw rod of the driving mechanism to precisely determine the change in the pressure value of the fluid, the change is preset in a signal converter, and the number of rotation cycles of the screw rod is then determined according to the change to obtain the appropriate pressure value of the fluid in the material passing channel, thereby achieving precise control over the flow, and preventing the quality of rare earth processing work from being affected.

JP5654099	How to determine the flow rate of gas, how to determine the operation of the gas flow controller, how to determine the capacity of a part of the gas flow control system, and the gas transfer system
JP2985235	INDUSTRIAL APPLICABILITY: A method for controlling the flow rate of a refining gas in a molten steel refining furnace.
JP3095755	PROBLEM TO BE SOLVED: A proportional valve having a closed loop control amplifier.

ZHANG XIANGLIANG (CN)
ZHU JIANFENG (CN)
CHEN FULI (CN)
YE JIAN (CN)
XIE ZHIZHONG (CN)

PCT/CN2021/092314

December 16, 2021

May 08, 2021

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XINFENG COUNTY BAOGANGXINLI RARE EARTH COMPANY LTD (CN)

G05D7/06; C22B3/02; C22B3/26; C22B59/00; C22B60/00

WO2017189902A1

2017-11-02

CN111506123A	2020-08-07
CN208477385U	2019-02-05
CN108825855A	2018-11-16
CN209890710U	2020-01-03
CN108375994A	2018-08-07
CN207231563U	2018-04-13

SUZHOU RUNTONG JIAYE INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)

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