Automated production system for producing fluorine-containing crystalline products using fluorine-containing solutions

Abstract

This invention provides an automated production system for producing fluorine-containing crystalline products using fluorine-containing solutions. The system includes a processing module, a blending module, a concentration module, a crystallization and purification module, and an automatic control module. The automatic control module is electrically connected to an ammonium ion concentration sensor and a fluoride ion concentration sensor. The automatic control module receives ammonium ion concentration parameters from the ammonium ion concentration sensor and fluoride ion concentration parameters from the fluoride ion concentration sensor, and controls the ammonia control valve, the hydrofluoric acid control valve, or a combination thereof. Through the aforementioned technical means, this invention can automatically produce the desired fluorine-containing crystalline products from fluorine-containing solutions of various compositions using physical processing methods, reducing the sludge generated by adding chemical agents and the high energy consumption of evaporation.

Claims

1. An automated production system for producing fluorine-containing crystalline products using a fluorine-containing solution, comprising: A processing module includes a processing device and a processing solution delivery pipe. A nano-filtration membrane is formed within the processing device, and the processing device has a discharge port connected to the upstream side of the processing solution delivery pipe. A mixing module includes: a mixing tank connected to the processing device via the processing solution delivery pipe; an ammonia tank and an ammonia inlet pipe, the ammonia tank being connected to the mixing tank via the ammonia inlet pipe of the mixing module; an ammonia control valve disposed between the upstream and downstream sides of the ammonia inlet pipe of the mixing module; a hydrofluoric acid tank and a hydrofluoric acid inlet pipe, the hydrofluoric acid tank being connected to the mixing tank via the hydrofluoric acid inlet pipe of the mixing module; and a hydrofluoric acid control valve disposed between the upstream and downstream sides of the hydrofluoric acid inlet pipe of the mixing module. A monoammonium ion concentration sensor and a monofluoride ion concentration sensor, wherein the monoammonium ion concentration sensor and the monofluoride ion concentration sensor of the mixing module are respectively disposed on the mixing tank and their sensing ends extend into the interior of the mixing tank; and a mixing solution delivery pipe. A concentration module includes a concentration tower, an ammonia inlet pipe, an ammonia control valve, a hydrofluoric acid inlet pipe, a hydrofluoric acid control valve, an ammonium ion concentration sensor, a fluoride ion concentration sensor, and a concentrated solution delivery pipe. The concentration tower is connected to a mixing tank via the mixing solution delivery pipe. The ammonia tank is connected to the concentration tower via the ammonia inlet pipe of the concentration module. The ammonia control valve of the concentration module is located between the upstream and downstream sides of the ammonia inlet pipe of the concentration module. The ammonia tank is connected to the concentration tower via the hydrofluoric acid inlet pipe of the concentration module. The hydrofluoric acid control valve of the concentration module is located between the upstream and downstream sides of the hydrofluoric acid inlet pipe of the concentration module. The ammonium ion concentration sensor and the fluoride ion concentration sensor of the concentration module are mounted on the concentration tower, and their sensing ends extend into the interior of the concentration tower. A crystallization purification module has a crystallization tank and a discharge pipe. The crystallization tank is connected to the concentration tower via the concentrated solution delivery pipe, and the upstream side of the discharge pipe is connected to the crystallization tank. An automatic control module is electrically connected to the ammonium ion concentration sensor and the fluoride ion concentration sensor of the mixing module, the ammonium ion concentration sensor and the fluoride ion concentration sensor of the concentration module, and the automatic control module receives the ammonium ion concentration parameters from the ammonium ion concentration sensor and the fluoride ion concentration parameters from the fluoride ion concentration sensor of the mixing module, and controls the ammonia control valve, the hydrofluoric acid control valve or a combination thereof of the mixing module. The automatic control module also receives the ammonium ion concentration parameters from the ammonium ion concentration sensor and the fluoride ion concentration parameters from the fluoride ion concentration sensor of the concentration module, and controls the ammonia control valve, the hydrofluoric acid control valve or a combination thereof of the concentration module.

2. The automated production system as claimed in claim 1, wherein the processing module has a filtration device and a filter solution delivery pipe, the filtration device being connected to the processing device via the filter solution delivery pipe.

3. The automated production system as described in claim 1, wherein the mixing module comprises: a storage tank disposed between the mixing tank and the concentration tower; a mixing solution delivery pipe including a first delivery pipe and a second delivery pipe, the first delivery pipe connecting the mixing tank and the storage tank, and the second delivery pipe connecting the storage tank and the concentration tower; the first delivery pipe being provided with a first control valve, and the second delivery pipe being provided with a second control valve; the automatic control module receiving ammonium ion concentration parameters from an ammonium ion concentration sensor and fluoride ion concentration parameters from a fluoride ion concentration sensor, and controlling the first control valve, the second control valve, or a combination thereof.

4. The automated production system as claimed in claim 1, wherein the crystallization purification module has a centrifuge, a crystallization conveying pipe and a drying device, the centrifuge being connected to the downstream side of the discharge pipe and the drying device being connected to the centrifuge via the crystallization conveying pipe.

5. The automated production system as claimed in claim 4, wherein the crystallization purification module has a centrifugal solution delivery pipe, and the centrifugation device is connected to the mixing tank via the centrifugal solution delivery pipe.

6. The automated production system as claimed in claim 1, wherein the automated production system has an ammonia recovery module disposed between the concentration module and the ammonia tank, and the ammonia recovery module is connected to the ammonia tank via an ammonia delivery pipe.

7. The automated production system as described in claim 6, wherein the automated production system has a discharge pipe that connects an underflow port of the processing device and the ammonia recovery module, the underflow port being located below the discharge port.

8. The automated production system as claimed in claim 1, wherein the mixing module has a mixing solution stirring unit disposed on the mixing tank.

9. The automated production system as described in claim 2, wherein the processing module has a fluorine solution tank, a fluorine solution stirring unit and a fluorine solution conveying pipe, the fluorine solution tank being connected to the filtration device via the fluorine solution conveying pipe, and the fluorine solution stirring unit being disposed on the fluorine solution tank.

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