Storage device for sealed extraction of high-purity barium acetate

Abstract

The application discloses a high-purity barium acetate sealed extraction storage device and relates to the technical field of substance extraction. The device comprises a rack and an extraction device. A reaction tank is fixed on the rack. The reaction tank is sequentially connected with a first pump body, the extraction device, a second pump body and a transfer tank through pipelines. The extraction device comprises a liquid inlet pipe connected with the first pump body, a liquid outlet pipe connected with the second pump body and multiple vertical extraction assemblies.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of substance extraction, and particularly relates to a storage device for sealed extraction of high-purity barium acetate. BACKGROUND

[0002] Barium acetate, also known as barium acetate, is an organic compound with the chemical formula (CH3COO)2Ba, which is a white crystalline powder, soluble in water and slightly soluble in ethanol, and is mainly used as a catalyst for organic reactions, a mordant, etc. Generally, it is prepared by reacting BaCO3 with CH3COOH, and then crystallized by evaporating the solvent, but it has insufficient thermal stability in air and is easy to react with CO2 and water vapor to generate BaCO3.

[0003] Therefore, it is necessary to provide a storage device for sealed extraction of high-purity barium acetate to solve the problems in the background. SUMMARY

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a storage device for sealed extraction of high-purity barium acetate, comprising: a rack, an extraction device, wherein the rack is fixed with a reaction tank, the reaction tank is connected with a first pump body, an extraction device, a second pump body and a transfer tank through pipes in sequence, and the extraction device comprises a liquid inlet pipe connected with the first pump body, a liquid outlet pipe connected with the second pump body and a plurality of vertical extraction assemblies.

[0005] Further, as a preferred, the vertical extraction assembly comprises a liquid inlet connected with the liquid inlet pipe, the upper end of the liquid inlet is provided with a flow control valve, and the end of the liquid inlet is fixedly provided with a main tank body, the main tank body is provided with a liquid inlet, a liquid outlet and an air inlet, a two-way valve is fixedly installed in the liquid outlet, and the upper end of the main tank body is provided with a main tank cover, the upper end of the main tank cover is provided with a separation opening and a liquid guide opening, and the inner lower end of the main tank cover is provided with an internal control assembly.

[0006] Further, as a preferred, the main tank body is internally provided with a heating layer, and externally provided with a heat insulation layer.

[0007] Further, as a preferred, one end of the two-way valve is connected with the second pump body through a pipe, and the other end is communicated with a conveying pipe.

[0008] Further, as preferred, the inner control assembly comprises an inner tank cover fixed with the main tank cover, a forward and reverse motor and a cylinder are fixed on the inner tank cover, an inner tank body is arranged at the output end of the cylinder, a sliding groove is arranged on the inner tank body and the output end of the cylinder, a fixing frame is fixed in the inner tank body, an extension shaft is fixed at the output end of the forward and reverse motor, a first leaf is arranged on the extension shaft through a first spring, and a second leaf is arranged on the extension shaft at the lower end of the fixing frame, and the second leaf is connected with the fixing frame through a second spring.

[0009] Further, as preferred, a threaded groove is arranged on the extension end of the extension shaft, so that the extension end of the extension shaft is slidably connected with the fixing frame through the threaded engagement.

[0010] Further, as preferred, the inner control assembly further comprises a double control electromagnetic valve, wherein the side wall of the inner tank body is connected with the side wall of the main tank body through a plurality of third springs, the lower end of the inner tank body is connected with the inner wall of the main tank body through two fourth springs, and the double control electromagnetic valve is fixedly arranged at the lower end of the inner tank body.

[0011] Further, as preferred, the double control electromagnetic valve comprises an upper guide valve and a lower guide valve, the upper valve core of the upper guide valve is a normal plate structure, and the lower valve core of the lower guide valve is a filter screen structure, and the filter hole of the filter screen structure is smaller than the particle size of the barium carbonate powder.

[0012] Compared with the prior art, the application provides a storage device for sealed extraction of high-purity barium acetate, which has the following beneficial effects:

[0013] 1、The solution generated by the reaction of the wightite powder and hydrochloric acid is filtered and then introduced into the inner control assembly, and then the ammonium carbonate solution is introduced into the inner control assembly to generate barium carbonate and ammonium salt, the ammonium salt solution is introduced into the transfer tank through the double control electromagnetic valve, the liquid outlet pipe and the second pump body, the barium carbonate is stored in the inner control assembly after being dried by heating, and the acetic acid solution is introduced into the main tank body through the liquid injection port, the molar mass ratio of the barium carbonate and the acetic acid is controlled to be 1:2, after sufficient reaction, the acetic acid is evaporated and then crystallized in the main tank body, the generated CO2 is returned to the transfer tank through the gas guide port, and the water vapor is discharged into the air through the separation port, on the one hand, the mother liquor can be effectively recycled, and on the other hand, the CO2 can be effectively prevented from being discharged into the air to pollute the air.

[0014] 2. In this invention, the intermittent forward and reverse rotation of the reversible motor causes the first and second blades on the telescopic shaft to rotate. Simultaneously, as the first and second springs recover their deformation, the first and second blades continuously reverse their direction, thoroughly stirring the barium salt and ammonium carbonate in the inner tank and increasing their reaction rate. At the same time, the intermittent forward and reverse rotation of the reversible motor causes the third spring to generate torque. During the spring's recovery deformation, the inner tank swings back and forth. On the other hand, the extension and retraction of the cylinder causes the fourth spring to move. The combination of the circumferential and axial movements of the inner tank allows the barium salt and ammonium carbonate to come into full contact, further increasing the reaction rate. Then, during the reaction with acetic acid, the rotation of the inner tank accelerates the release of barium carbonate into the main tank, preventing the barium carbonate from accumulating in the inner tank and making it difficult to fall. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a storage device for the sealed extraction of high-purity barium acetate;

[0016] Figure 2 This is a schematic diagram of the external structure of an extraction device in a sealed storage device for high-purity barium acetate extraction.

[0017] Figure 3 for Figure 2 A schematic diagram of the internal structure of the extraction device;

[0018] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0019] In the diagram: 1. Frame; 2. Reaction vessel; 3. First pump body; 4. Extraction device; 5. Second pump body; 6. Transfer tank; 41. Inlet pipe; 42. Outlet pipe; 43. Vertical extraction assembly; 431. Inlet; 432. Main tank body; 433. Main tank cover; 434. Separation port; 435. Injection port; 436. Outlet; 437. Two-way valve; 438. Internal control assembly; 4381. Inner tank cover; 4382. Forward and reverse motor; 4383. Cylinder; 4384. Inner tank body; 4385. Fixing frame; 4386. Telescopic shaft; 4387. First spring; 4388. First fan blade; 4389. Second fan blade; 4390. Second spring; 4391. Third spring; 4392. Fourth spring; 4393. Dual-control solenoid valve; 43931. Upper guide valve; 43932. Lower guide valve. Detailed Implementation

[0020] Please see Figures 1 to 4The storage device for sealed extraction of high-purity barium acetate in the embodiment of the application comprises a rack 1 and an extraction device 4, wherein a reaction tank 2 is fixed on the rack 1, the reaction tank 2 is sequentially connected with a first pump body 3, the extraction device 4, a second pump body 5 and a transfer tank 6 through pipelines, and the extraction device 4 comprises a liquid inlet pipe 41 connected with the first pump body 3, a liquid outlet pipe 42 connected with the second pump body 5 and a plurality of vertical extraction assemblies 43.

[0021] In the implementation process, first, the wightite powder is placed in the reaction tank 2, and the chemical reaction equation between the wightite powder and hydrochloric acid is as follows:

[0022] BaCO3+2HCl=BaCl2+H2O+CO2↑

[0023] It should be noted that the filter device is arranged in the reaction tank 2, which can filter the residue of the wightite powder, and the concentration of the generated barium salt in the reaction tank 2 is controlled to be constant. After the reaction, the generated solution is filtered, transported to the extraction device 4 through the first pump body 3 and the liquid inlet pipe 41, and then the solution in the transfer tank 6 is introduced into the extraction device 4 to generate BaCO3 and ammonium salt. The ammonium salt solution is recycled by being introduced into the transfer tank 6 through the second pump body 5, and then the CH3COOH solution is introduced into the extraction device 4 to generate (CH3COO)2Ba. Then, the solvent in the solution is evaporated, and (CH3COO)2Ba is crystallized and separated out.

[0024] In the embodiment, as shown in Figure 2 、 Figure 3 The vertical extraction assembly 43 comprises a liquid inlet 431 connected with the liquid inlet pipe 41, the upper end of the liquid inlet 431 is provided with a flow control valve, the distal end of the liquid inlet 431 is fixedly provided with a main tank body 432, the main tank body 432 is provided with a liquid injection port 435, a liquid outlet port 436 and an air guide port, a two-way valve 437 is fixedly installed in the liquid outlet port 436, the upper end of the main tank body 432 is provided with a main tank cover 433, the upper end of the main tank cover 433 is provided with a separation port 434 and a liquid guide port, and the inner control assembly 438 is arranged at the lower end of the main tank cover 433.

[0025] That is to say, the barium salt solution introduced through the liquid inlet 431 and the ammonium carbonate solution introduced through the liquid guide port react in the inner control assembly 438 to generate BaCO3 and ammonium salt solution, the ammonium salt solution is recycled to the transfer tank 6 through the liquid outlet port 436, the two-way valve 437 and the second pump body 5, and the CH3COOH solution is added to the inner control assembly 438 through the liquid injection port 435 after the BaCO3 is filtered, heated and dried. The chemical reaction equation is as follows:

[0026] BaCO3+CH3COOH=(CH3COO)2Ba+CO2↑+H2O

[0027] The CO2 generated in the process is returned to the transfer tank 6 through the gas inlet to continue to generate ammonium carbonate solution, and the water generated in the process is discharged through the separation port 434 after the solvent is evaporated. It should be noted that each separation port 434 is provided with a solenoid valve, which is always open during the heating process of the main tank body 432, and is closed after stopping heating to prevent air from entering the main tank body 432, which is conducive to the sealed storage of (CH3COO)2Ba.

[0028] As a preferred embodiment, the inside of the main tank body 432 is provided with a heating layer, and the outside is provided with a heat insulation layer. On the one hand, heating during the chemical reaction process can increase the reaction rate, and on the other hand, it can dry the generated BaCO3 (the purpose of drying is to prevent moisture from remaining and reduce the concentration of CH3COOH, which leads to insufficient reaction) and crystallize after the solvent of (CH3COO)2Ba is evaporated.

[0029] As a preferred embodiment, one end of the bidirectional valve 437 is connected to the second pump body 5 through a pipeline, so that the ammonium salt solution in the main tank body 432 returns to the transfer tank 6, and the other end is connected to the conveying pipeline, which is conducive to the use of (CH3COO)2Ba. It should be noted that the opening and closing states of the two ends of the bidirectional valve 437 do not affect each other.

[0030] Please refer to Figure 3 In this embodiment, the internal control assembly 438 includes an inner tank cover 4381 fixed to the main tank cover 433, a forward and reverse motor 4382 and an air cylinder 4383 fixedly arranged on the inner tank cover 4381, an inner tank body 4384 arranged at the output end of the air cylinder 4383, a sliding groove arranged at the contact part between the output end of the air cylinder 4383 and the upper end of the inner tank body 4384, a fixing frame 4385 fixedly arranged in the inner tank body 4384, an extension shaft 4386 fixedly arranged at the output end of the forward and reverse motor 4382, a first fan blade 4388 connected to the extension shaft 4386 through a first spring 4387, a second fan blade 4389 arranged on the extension shaft 4386 at the lower end of the fixing frame 4385, and the second fan blade 4389 connected to the fixing frame 4385 through a second spring 4390.

[0031] In the implementation process, ammonium carbonate solution is introduced into the inner tank body 4384 through the liquid inlet 431 to generate BaCO3 and ammonium salt, and the chemical reaction formula is as follows:

[0032] BaCl2+2NH4OH=Ba(OH)2+2NH4Cl

[0033] Ba(OH)2+CO2=BaCO3↓+H2O.

[0034] As a preferred embodiment, the telescopic end of the telescopic shaft 4386 is provided with a threaded groove, so that the telescopic end of the telescopic shaft 4386 is slidably connected to the fixed frame 4385 through threaded engagement, and under the intermittent forward and reverse rotation of the forward and reverse motor 4382, the first fan blade 4388 and the second fan blade 4399 are rotated, so that the barium salt and ammonium carbonate in the inner tank body 4384 are fully stirred, and the reaction rate is increased.

[0035] In this embodiment, as Figure 3 、 Figure 4 , the inner control assembly 438 further includes a double-control electromagnetic valve 4393, wherein the side wall of the inner tank body 4384 is connected to the side wall of the main tank body 432 through a plurality of third springs 4391, the lower end of the inner tank body 4384 is connected to the inner wall of the main tank body 432 through two fourth springs 4392, and the double-control electromagnetic valve 4393 is fixedly installed at the lower end of the inner tank body 4384.

[0036] In other words, on the one hand, the intermittent forward and reverse rotation of the forward and reverse motor 4382 causes the third spring 4391 to generate torque, and the inner tank body 4384 swings back and forth during the recovery of the deformation of the third spring 4391, on the other hand, the fourth spring 4392 is constantly stretched and contracted through the telescopic cylinder 4383, and the movement of the inner tank body 4384 in the circumferential and axial directions is combined to further improve the reaction rate of the barium salt and ammonium carbonate in the inner tank body 4384, and then when BaCO3 is added to CH3COOH, the rotation of the inner tank body 4384 can accelerate the release of barium carbonate, preventing it from accumulating in the inner tank body 4384 and not falling easily.

[0037] As a preferred embodiment, the double-control electromagnetic valve 4393 includes an upper guide valve 43931 and a lower guide valve 43932, the upper valve core of the upper guide valve 43931 is a normal plate structure, and the lower valve core of the lower guide valve 43932 is a filter screen structure, and the filter hole is smaller than the particle size of the barium carbonate powder, that is, during the generation of BaCO3, the upper guide valve 43931 and the lower guide valve 43932 are both normally closed, after the reaction stops, the upper guide valve 43931 is opened, and the lower guide valve 43932 is normally closed, preventing BaCO3 from entering the transfer tank 6 with the ammonium salt solution, and during the reaction of BaCO3 and CH3COOH, the upper guide valve 43931 is opened, and the lower guide valve 43932 is also opened, which is conducive to the falling of BaCO3 into the CH3COOH solution.

[0038] In the specific implementation, first, the wightite ore powder is put into the reaction tank 2, then the solution generated by the reaction of the wightite ore powder in the reaction tank 2 and hydrochloric acid is introduced into the inner control assembly 438 of the vertical extraction assembly 43 through the first pump body 3 and the liquid inlet pipe 41, then the ammonium carbonate solution is introduced into the inner control assembly 438 through the transfer tank 6, the barium carbonate and ammonium salt are generated in the inner tank body 4384, the ammonium salt solution is introduced into the transfer tank 6 through the double-control electromagnetic valve 4393, the liquid outlet pipe 42 and the second pump body 5, the barium carbonate is stored in the inner control assembly 438 after being dried by heating, and the acetic acid solution is introduced into the main tank body 432 through the liquid injection port 435, after sufficient reaction, the acetic acid solution is evaporated and crystallized in the main tank body 432, the generated carbon dioxide is introduced into the main tank body 432 through the gas guide port, and the water vapor is discharged into the air through the separation port 434.

[0039] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A storage device for high purity barium acetate sealed extraction, characterized by: Include: Frame (1), extraction device (4), wherein the frame (1) is fixed with reaction tank (2), the reaction tank (2) and first pump body (3), extraction device (4), second pump body (5), transfer tank (6) are sequentially connected through pipeline, and the extraction device (4) includes liquid inlet pipe (41) connected with first pump body (3), liquid outlet pipe (42) connected with second pump body (5) and multiple vertical extraction assemblies (43); The vertical extraction assembly (43) includes a liquid inlet (431) connected with the liquid inlet pipe (41), the upper end of the liquid inlet (431) is provided with a flow control valve, and the end of the liquid inlet (431) is fixedly provided with a main tank body (432), the main tank body (432) is provided with a liquid inlet (435), a liquid outlet (436) and a gas guide port, the liquid outlet (436) is fixedly installed with a two-way valve (437), and the upper end of the main tank cover (433) is provided with a separation port (434) and a liquid guide port, and the lower end of the main tank cover (433) is provided with an inner control assembly (438); The inner control assembly (438) includes an inner tank cover (4381) fixedly connected with the main tank cover (433), a reversible motor (4382) and a gas cylinder (4383) are fixedly arranged on the inner tank cover (4381), an inner tank body (4384) is arranged on the output end of the gas cylinder (4383), a sliding groove is arranged on the upper end of the inner tank body (4384) and the contact part of the output end of the gas cylinder (4383), a fixing frame (4385) is fixedly arranged in the inner tank body (4384), a telescopic shaft (4386) is fixedly arranged on the output end of the reversible motor (4382), a first leaf (4388) is arranged on the telescopic shaft (4386) through a first spring (4387), and a second leaf (4389) is arranged on the telescopic shaft (4386) below the fixing frame (4385), and the second leaf (4389) is connected with the fixing frame (4385) through a second spring (4390).

2. The storage device for sealed extraction of high purity barium acetate according to claim 1, characterized in that: The inner tank body (4384) is connected with the main tank body (432) through a plurality of third springs (4391), the lower end of the inner tank body (4384) is connected with the inner wall of the main tank body (432) through two fourth springs (4392), and the double control electromagnetic valve (4393) is fixedly installed on the lower end of the inner tank body (4384).

3. The storage device for sealed extraction of high purity barium acetate according to claim 1, characterized in that: The inner tank body (4384) is connected with the main tank body (432) through a plurality of third springs (4391), the lower end of the inner tank body (4384) is connected with the inner wall of the main tank body (432) through two fourth springs (4392), and the double control electromagnetic valve (4393) is fixedly installed on the lower end of the inner tank body (4384).

4. The storage device for sealed extraction of high purity barium acetate according to claim 1, characterized in that: ​ 5. A storage device for sealed extraction of high purity barium acetate according to claim 4, characterized in that: The double control electromagnetic valve (4393) includes an upper guide valve (43931) and a lower guide valve (43932), the upper valve core of the upper guide valve (43931) is a normal plate structure, and the lower valve core of the lower guide valve (43932) is a filter screen structure, and the filter hole is smaller than the particle size of the barium carbonate powder.

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