CN217939478U

CN217939478U - Calcium chloride purification device

Info

Publication number: CN217939478U
Application number: CN202222232860.0U
Authority: CN
Inventors: 祝桂林; 李明达; 潘学成
Original assignee: Lianyungang Shuren Kechuang Food Additive Co ltd
Current assignee: Lianyungang Shuren Kechuang Food Additive Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-12-02
Anticipated expiration: 2032-08-24

Abstract

The utility model relates to a production facility field just discloses a calcium chloride purifier, including purifying tank and regulating tank, connect through changeing material pump and filter between purifying tank and the regulating tank, be connected through backflow pipeline between the connecting line of purifying tank and filter and regulating tank, purifying tank changes the material pump through the one connection of control valve, changes the material pump and passes through two connection filters of control valve, the filter is connected to the regulating tank through toughened glass sight glass pipe and control valve three, this calcium chloride purifier, based on solubility product (Ksp) principle, utilizes the hydroxide precipitation method to detach the metallic impurity in the calcium chloride aqueous solution. Filtering out the precipitate by a filter, and adjusting the pH value of the solution by hydrochloric acid to obtain a pure calcium chloride aqueous solution. The device has the advantages of convenient processing and manufacturing, simple operation, wide application range, convenient industrialization, automatic operation and the like, and has good popularization value.

Description

Calcium chloride purification device

Technical Field

The utility model relates to a production facility field specifically is a calcium chloride purifier.

Background

Calcium chloride is a chemical substance consisting of chlorine and calcium, has a chemical formula of CaCl2, and is slightly bitter. It is typically an ionic halide that is white, hard, in small pieces or granules at room temperature. Common applications include brines used in refrigeration equipment, road ice melting agents, and desiccants. When industrial calcium chloride dihydrate is used as a calcium source to produce edible or medical tricalcium phosphate, as the national standard of industrial calcium chloride does not have the requirement of heavy metal indexes, the calcium chloride supplied in the market cannot be directly used, and the calcium chloride can be used only after heavy metal ions in the calcium chloride are removed, otherwise, the heavy metal of the finished tricalcium phosphate exceeds the standard, and the application of the tricalcium phosphate in food and medicine is influenced, so that a calcium chloride purification device is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the deficiency of the prior art, the utility model provides a calcium chloride purification device, solved foretell problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a calcium chloride purifier, includes purification tank and surge tank, be connected through commentaries on classics material pump and filter between purification tank and the surge tank, be connected through return line between purification tank and filter and the connecting line of surge tank.

Preferably, the purification tank is connected with a material transferring pump through a first control valve, the material transferring pump is connected with a filter through a second control valve, and the filter is connected to the adjusting tank through a toughened glass sight glass tube and a third control valve.

Preferably, a return valve is installed on the return pipeline.

Preferably, the purification tank comprises a first device body, a first online pH meter, a first stirring device and a first transmission device, the first transmission device is connected with the first stirring device through a coupler, the first stirring device extends into the first device body, the first device body is a circular cylinder with an elliptical sealing head at the lower part and a flat cover at the upper part, a calcium chloride inlet, a pure water inlet and a calcium hydroxide inlet are arranged on the flat cover at the upper part, and the first device body is provided with the first online pH meter, a backflow pipeline and a first transmission device mounting support.

Preferably, the material transfer pump is a single-stage centrifugal pump.

Preferably, the filter is a box-type dark flow plate and frame filter press.

Preferably, the adjusting tank is composed of a second device body, a second stirring device, a second transmission device and a second online PH meter, the second device body is a circular cylinder with an oval end socket at the lower part, a flat cover is arranged at the upper part, a calcium chloride solution inlet, a hydrochloric acid inlet and a manhole are arranged on the flat cover at the upper part, a second transmission device is provided with a support, the second online PH meter is arranged on the second device body, a discharge port is arranged at the bottom of the lower end socket and connected with an external pipeline, a discharge valve is arranged on the pipeline, and the second transmission device 15 is connected with the second stirring device through a coupler.

(III) advantageous effects

Compared with the prior art, the utility model provides a calcium chloride purifier possesses following beneficial effect:

1. the calcium chloride purification device removes metal impurities in a calcium chloride aqueous solution by using a hydroxide precipitation method based on the solubility product (Ksp) principle. Filtering out the precipitate by a filter, and adjusting the pH value of the solution by hydrochloric acid to obtain a pure calcium chloride aqueous solution. The device has the advantages of convenient processing and manufacturing, simple operation, wide application range, convenient industrialization, automatic operation and the like, and has good popularization value.

Drawings

Fig. 1 is a schematic view of the present invention.

In the figure: 1. a purification tank; 2. a material transferring pump; 3. a filter; 4. adjusting the tank; 5. a first stirring device; 6. a first transmission device; 7. an online pH meter I; 8. a first control valve; 9. a second control valve; 10. a toughened glass sight glass tube; 11. a reflux valve; 12. a third control valve; 13. a return line; 14. a second stirring device; 15. a second transmission device; 16. a second online pH meter; 17. a discharge valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, a calcium chloride purification device comprises a purification tank 1 and an adjustment tank 4, wherein the purification tank 1 and the adjustment tank 4 are connected through a material transfer pump 2 and a filter 3, and the purification tank 1 is connected with the filter 3 and the adjustment tank 4 through a return pipeline 13.

Furthermore, the purification tank 1 is connected with a material transferring pump 2 through a first control valve 8, the material transferring pump 2 is connected with a filter 3 through a second control valve 9, and the filter 3 is connected with a regulating tank 4 through a toughened glass sight glass tube 10 and a third control valve 12.

Further, a return valve 11 is installed on the return pipe 13.

Further, the purification tank 1 comprises a first device body, a first online PH meter 7, a first stirring device 5 and a first transmission device 6, wherein the first transmission device 6 is connected with the first stirring device 5 through a coupler, the first stirring device 5 extends into the first device body, the first device body is a circular cylinder with an elliptical head at the lower part and a flat cover at the upper part, the flat cover at the upper part is provided with a calcium chloride inlet, a pure water inlet and a calcium hydroxide inlet, the first device body is provided with the first online PH meter 7, a backflow pipeline 13 and a first transmission device 6 mounting bracket, and online detection of PH and temperature can be realized; the bottom of the lower end enclosure is provided with a discharge hole, the first stirring device 5 consists of a stirring shaft and a stirrer, the stirrer is arranged on the stirring shaft, and the first transmission device 6 consists of a motor, a speed reducer and a rack.

Further, the material transferring pump 2 is a single-stage centrifugal pump.

Further, the filter 3 is a box-type blind flow plate and frame filter press.

Further, the adjusting tank 4 comprises a second device body, a second stirring device 14, a second transmission device 15 and a second online pH meter 16, the second device body is a circular cylinder with an oval end socket at the lower part and a flat cover at the upper part, the flat cover at the upper part is provided with a calcium chloride solution inlet, a hydrochloric acid inlet and a manhole, the second transmission device 15 is provided with a support, the second online pH meter 16 is arranged on the second device body and can realize online detection of pH and temperature, the bottom of the lower end socket is provided with a discharge hole and is connected with an external pipeline, a discharge valve 17 is arranged on the pipeline, the second stirring device 14 comprises a stirring shaft and a stirrer, the stirrer is arranged on the stirring shaft, the second transmission device 15 comprises a motor, a speed reducer and a rack, and the second transmission device 15 is connected with the second stirring device 14 through a coupler.

The working principle is as follows:

firstly, putting a proper amount of pure water into the purification tank 1, starting the first transmission device 6, and driving the first stirring device 5 to rotate through the first coupling device to adjust to a proper rotating speed.

Secondly, adding a proper amount of solid calcium chloride dihydrate into the purification tank 1 to prepare a calcium chloride aqueous solution with the mass concentration of 40-50%.

Thirdly, adding calcium hydroxide into the purification tank 1, observing the change of a 7-number value of the on-line pH meter, and stopping adding the calcium hydroxide when the pH value is about 11. And then shutting down the first stirring device 5, and standing and precipitating for 20-30 minutes.

And fourthly, opening the first control valve 8, the second control valve 9 and the return valve 11, closing the third control valve 13, starting the material transferring pump 2, enabling the calcium chloride solution with the precipitate to enter the filter press 3, intercepting the precipitate by filter cloth in the filter press 3, returning the liquid into the purification tank 1 through the filter cloth and a return pipeline 12, opening the third control valve 13, closing the return valve 11 of the control valve and enabling the filtrate to enter the adjusting tank 4 when the clarification of the filtrate is observed from the toughened glass sight glass tube 10.

And fifthly, after the feed liquid in the purification tank 1 is pumped out, the material transferring pump is turned off, the second stirring device 14 of the adjusting tank 4 is started, food hydrochloric acid is slowly added into the adjusting tank 4, the change of the second 16 number of the online pH meter is observed, and when the pH value is about 7, the hydrochloric acid is stopped being added, so that all steps of calcium chloride purification are completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The calcium chloride purification device is characterized by comprising a purification tank (1) and an adjusting tank (4), wherein the purification tank (1) and the adjusting tank (4) are connected through a material transferring pump (2) and a filter (3), and the purification tank (1) is connected with the filter (3) and the adjusting tank (4) through a backflow pipeline (13).

2. The calcium chloride purification device according to claim 1, wherein: the purifying tank (1) is connected with the material transferring pump (2) through a first control valve (8), the material transferring pump (2) is connected with the filter (3) through a second control valve (9), and the filter (3) is connected to the adjusting tank (4) through a toughened glass sight glass pipe (10) and a third control valve (12).

3. The calcium chloride purification device according to claim 1, wherein: and a return valve (11) is arranged on the return pipeline (13).

4. The calcium chloride purification device according to claim 1, wherein: the purification tank (1) comprises a first body, a first online PH meter (7), a first stirring device (5) and a first transmission device (6), wherein the first transmission device (6) is connected with the first stirring device (5) through a coupler, the first stirring device (5) extends to the first body, the first body is provided with an elliptical seal head for the lower part, the upper part is a circular cylinder body with a flat cover, the upper flat cover is provided with a calcium chloride inlet, a pure water inlet and a calcium hydroxide inlet, and the first body is provided with the first online PH meter (7).

5. The calcium chloride purification device according to claim 1, wherein: the material transferring pump (2) is a single-stage centrifugal pump.

6. The calcium chloride purification device according to claim 1, wherein: the filter (3) is a box-type blind flow plate and frame filter press.

7. The calcium chloride purification device according to claim 1, wherein: the adjusting tank (4) is composed of a second device body, a second stirring device (14), a second transmission device (15) and a second online PH meter (16), the second device body is a circular cylinder body with an oval seal head on the lower portion, a flat cover is arranged on the upper portion, a hydrochloric acid inlet is arranged on the flat cover on the upper portion, the second online PH meter (16) is arranged on the second device body, a discharge port is arranged at the bottom of a lower seal head and connected with an external pipeline, a discharge valve (17) is arranged on the pipeline, and the second transmission device (15) is connected with the second stirring device (14) through a coupler.