Device for automatically checking and controlling acid-base concentration online in etching pipeline
An automatic inspection and assembly line technology, which is applied in measuring devices, non-electric variable control, various fluid ratio control, etc. Effect
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[0026] The accompanying drawings disclose the basic structure and working process of the embodiments of the present invention without limitation, and the present invention will be further described below in conjunction with the accompanying drawings.
[0027] Depend on figure 1 It can be seen that the present invention includes independent nitric acid tanks, hydrochloric acid tanks and lye tanks in the assembly line, and independent self-circulating pumps for each tank, and also includes correspondingly matched concentrated nitric acid tanks, concentrated hydrochloric acid tanks, concentrated lye tanks and metering pumps . The device also includes a PLC control system, and relies on Metrohm 2035 to build a three-way online automatic cycle inspection and control acid-base concentration analysis device (referred to as online analyzer in the figure).
[0028] The PLC control system has at least six output control terminals and a set of data lines, wherein the output control term...
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