Hydrochloric acid purification device

Abstract

The invention relates to the technical field of hydrochloric acid purification, in particular to a hydrochloric acid purification device which comprises a bottom plate, a hollow base, a distillation bin and a pure water bin, a butt-joint plate is movably arranged in the distillation bin, two connecting bins are arranged on the butt-joint plate and located at the two ends of the butt-joint plate respectively, stirring blades are installed on the connecting bins, and the stirring blades are arranged on the hollow base. Stirring blades are arranged in the distillation bin, turbulent flow holes are formed in the stirring blades, and a splashing suppression unit connected with the stirring blades is arranged in the distillation bin and used for driving the stirring blades to rotate to mix liquid and eliminate temperature gradient when hydrochloric acid liquid is heated. When hydrochloric acid liquid starts to be heated, the stirring blades are driven to rotate so as to mix the liquid and eliminate the temperature gradient, the hydrochloric acid liquid can be fully mixed in the heating process by driving the stirring blades to rotate, the temperature uniformity of the whole liquid system is ensured, and the stirring effect is beneficial to breaking temperature stratification in the liquid and reducing the temperature gradient.

Description

Technical Field

[0001] This invention relates to the field of hydrochloric acid purification technology, specifically to a hydrochloric acid purification apparatus. Background Technology

[0002] Hydrochloric acid is an aqueous solution of hydrogen chloride, possessing strong acidity, volatility, and corrosiveness. It has wide applications in numerous fields such as chemical engineering, pharmaceuticals, metallurgy, and food processing. However, during industrial preparation or storage, hydrochloric acid is easily contaminated with impurities such as metal ions and organic matter, affecting its purity and reaction efficiency. Therefore, purification methods such as distillation, diffusion, and chemical treatment are needed to remove impurities, improve product quality, meet the requirements of precision processes, and ensure safe use. Because hydrochloric acid has a lower boiling point than water and is volatile, distillation has become the most common method for purifying hydrochloric acid. By heating, hydrogen chloride is volatilized from hydrochloric acid, separating it from non-volatile impurities. The vapor is then condensed into liquid, thus obtaining high-purity hydrochloric acid. The operation process involves placing a solution containing hydrochloric acid into a distillation flask and heating it. After the hydrochloric acid evaporates, it enters a condenser along with the vapor, where it is cooled and condensed into a liquid condensate, which is finally collected in a collection bottle.

[0003] In the traditional distillation process for hydrochloric acid purification, when the liquid is heated, bubbles are generated in the localized overheated areas. These bubbles release strong kinetic energy upon bursting, entraining tiny droplets into the gas phase and forming aerosols. Due to surface tension, the aerosols encapsulate impurities that have not been completely separated, forming a complex three-phase mixture of solid, liquid, and gas. As a result, the evaporated hydrogen chloride gas contains these aerosols, which in turn contain incompletely separated impurities and solid particles. When these gases carrying aerosols enter the absorbent, impurities are mixed in, contaminating the product and making it difficult to achieve high purity standards for hydrochloric acid. Furthermore, the presence of aerosols enhances the system's thermal radiation effect and accelerates heat loss, which undoubtedly leads to a significant increase in energy consumption and further reduces the overall efficiency of the purification process. Therefore, we propose a hydrochloric acid purification device. Summary of the Invention

[0004] One of the technical problems this application aims to solve is that localized overheating areas generate bubbles. When these bubbles burst, they release powerful kinetic energy, entraining tiny droplets into the gas phase and forming aerosols. These aerosols are then mixed into the evaporated hydrogen chloride gas, which contains incompletely separated impurities and solid particles. When these gases carrying aerosols enter the absorbent liquid, the impurities are mixed in, contaminating the product and making it difficult for the hydrochloric acid to reach high purity standards.

[0005] To address the aforementioned technical problems, this application provides a hydrochloric acid purification device, comprising a base plate, a hollow base, a distillation chamber, and a pure water chamber. A docking plate is movably disposed within the distillation chamber, and two connecting chambers are disposed on the docking plate at opposite ends. Stirring blades are mounted on the connecting chambers, and the stirring blades have turbulence-inducing holes. A splash suppression unit connected to the stirring blades is disposed within the distillation chamber, used to drive the stirring blades to rotate during hydrochloric acid heating to mix the liquid and eliminate temperature gradients. The unit can adjust the angle between the stirring blades and the horizontal plane based on changes in the hydrochloric acid liquid temperature to adapt to the mixing requirements of hydrochloric acid at different boiling stages. A separation unit is disposed on the base plate to perform segmented condensation of the evaporated hydrogen chloride gas, thereby separating the aerosols in the hydrogen chloride gas.

[0006] In some embodiments, the splash suppression unit includes a docking member disposed in the distillation chamber to connect the stirring blade to the distillation chamber. A driving member is disposed on the base to drive the stirring blade in the distillation chamber to rotate. A deflector is disposed in the connecting chamber to drive the stirring blade to rotate. An adjusting member is disposed in the distillation chamber to drive the deflector to work.

[0007] In some embodiments, the docking component includes a support frame disposed within a distillation chamber, a fixed tube rotatably mounted on the support frame such that the bottom surface of the fixed tube does not contact the distillation chamber, a connecting tube slidably mounted on the fixed tube, a compression spring disposed within the fixed tube such that one end of the compression spring is connected to the connecting tube, a rotating shaft rotatably mounted on the connecting tube, a limit plate disposed on the rotating shaft, locking blocks disposed on both sides of the limit plate, a docking groove for cooperating with the limit plate and the locking blocks, and a locking groove for cooperating with the locking blocks, wherein the locking groove is connected to the docking groove.

[0008] In some embodiments, the driving component includes a drive shaft rotatably disposed within a base, one end of the drive shaft penetrating a base plate, a drive motor connected to the drive shaft being disposed on the base plate, a power rod being disposed at the end of the drive shaft away from the drive motor, and a first power magnet and a second power magnet attracting each other being disposed on the stirring blade and the power rod, respectively.

[0009] In some embodiments, the deflecting component includes a deflecting shaft rotatably disposed within a connecting chamber. One end of the deflecting shaft passes through the connecting chamber and is connected to the stirring blade. A spiral groove is formed on the deflecting shaft at a position within the connecting chamber. A sliding rod is slidably disposed on the connecting chamber. A push rod is slidably connected to the spiral groove on the sliding rod. A telescopic rod is disposed on the sliding rod. One end of the telescopic rod is connected to the inner wall of the connecting chamber. A return spring is sleeved on the telescopic rod.

[0010] In some embodiments, the adjusting component includes a push plate rotatably disposed at the bottom of the fixed tube, a plurality of push blocks disposed on the edge of the push plate, a telescopic rod II disposed at one end of the push plate located inside the fixed tube, an adjusting motor disposed on the connecting tube, the power output end of the adjusting motor being connected to the telescopic rod II, and a temperature sensor disposed inside the distillation chamber, the adjusting motor being controlled to operate by the temperature sensor.

[0011] In some embodiments, the separation unit includes a condenser mounted on a base plate, which is used to condense hydrogen chloride gas generated by distillation in stages. The condenser is equipped with a recovery unit, which is used to recover the liquid generated by condensing the aerosol.

[0012] In some embodiments, the condenser includes rotating blades mounted on a drive shaft, the rotating blades being located within an internal cavity of the base. A synchronization chamber is provided on the base plate, the synchronization chamber communicating with the internal cavity of the base, and multiple air guide pipes are provided on the synchronization chamber. A first condensation chamber is provided on the base plate, the first condensation chamber containing a water-cooled circulation device and communicating with a pure water chamber. A connecting pipe is provided on the first condensation chamber, and a second condensation chamber is provided on the connecting pipe. The second condensation chamber contains multiple condensing plates, which are inclined. A flow groove is formed within each condensing plate, one end of which penetrates the side wall of the second condensation chamber. A docking cavity is formed on one side of the second condensation chamber, and the docking cavity is connected to both the flow groove and the air guide pipes.

[0013] In some embodiments, the recovery component includes a plurality of guide grooves formed on a condenser plate, a recovery trough communicating with the guide grooves is formed on the condenser plate, a recovery pipe is provided on the condenser plate, the recovery pipe is communicating with the recovery trough, a discharge pipe is provided on the recovery pipe, and the discharge pipe is communicating with the lower liquid zone of the distillation chamber.

[0014] In some embodiments, an annular groove is provided on the side of the connecting pipe that contacts the docking plate, and a plurality of ball bearings are movably disposed in the annular groove.

[0015] This invention has at least the following beneficial effects:

[0016] 1. When heating hydrochloric acid liquid, the stirring blades are driven to rotate to mix the liquid and eliminate temperature gradients. By driving the stirring blades to rotate, the hydrochloric acid liquid can be fully mixed during the heating process, ensuring the temperature uniformity of the entire liquid system. The stirring action helps to break up temperature stratification in the liquid, reduce temperature gradients, and make the temperature distribution of the hydrochloric acid liquid more uniform during the heating process. This avoids the generation of bubbles in local overheated areas and further reduces the probability of hydrogen chloride gas carrying aerosols. At the same time, the turbulence holes on the stirring blades can generate microscale turbulence, which increases the thermal motion rate of liquid molecules, accelerates the heat conduction speed from the distillation chamber wall to the interior of the liquid, and shortens the overall heating time.

[0017] 2. By adjusting the angle between the stirring blades and the horizontal plane according to the temperature change of hydrochloric acid liquid, the mixing requirements of hydrochloric acid at different boiling stages can be adapted. This dynamic adaptation capability allows the stirring blades to maintain the best stirring effect at different boiling stages. The stirring blade angle is automatically adjusted at different boiling stages to optimize the synergistic effect of radial flow and axial circulation, effectively eliminate temperature gradients and improve heat diffusion efficiency. Combined with multi-dimensional mixing enhancement design, it adapts to the process requirements of pre-boiling, main boiling and stabilization stages, reducing energy consumption fluctuations and aerosol entrainment risks. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the distillation chamber of the present invention;

[0020] Figure 3 This is a schematic diagram of the splash suppression unit structure of the present invention;

[0021] Figure 4 This is an exploded structural diagram of the docking component of the present invention;

[0022] Figure 5 For the present invention Figure 4 Another structural diagram;

[0023] Figure 6 This is a schematic diagram of the stirring blade structure of the present invention;

[0024] Figure 7 For the present invention Figure 6 Enlarged structural diagram of area A in the middle;

[0025] Figure 8 This is a schematic diagram of the exploded structure of the separation unit of the present invention;

[0026] Figure 9 This is a schematic diagram of the two cross-sectional structures of the condensation chamber of the present invention;

[0027] Figure 10 This is a schematic diagram of the structure of the recyclable component of the present invention;

[0028] Figure 11 This is a schematic diagram of the cross-sectional structure of the condenser plate of the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0030] In the diagram: 1. Base plate; 2. Base; 3. Distillation chamber; 4. Pure water chamber; 5. Docking plate; 6. Connecting chamber; 7. Stirring blades; 71. Turbulence hole; 8. Splash suppression unit; 9. Docking component; 91. Support frame; 92. Fixing pipe; 93. Connecting pipe; 94. Compression spring; 95. Rotating shaft; 96. Limiting plate; 97. Locking block; 98. Docking groove; 99. Locking groove; 10. Driving component; 101. Drive shaft; 102. Drive motor; 103. Power rod; 104. Power magnet one; 105. Power magnet two; 11. Deflecting component; 111. Deflecting shaft; 112. Spiral groove; 113. Sliding rod; 114. 115. Push rod; 116. Telescopic rod one; 12. Return spring; 13. Adjusting component; 14. Push plate; 15. Push block; 16. Telescopic rod two; 17. Adjusting motor; 18. Temperature sensor; 19. Separation unit; 10. Condensing component; 10. Rotating blade; 11. Synchronization chamber; 12. Air guide pipe; 13. Condensing chamber one; 14. Connecting pipe; 15. Condensing plate; 16. Flow groove; 17. Docking cavity; 18. Recovery component; 19. Flow guide groove; 10. Recovery groove; 10. Recovery pipe; 11. Discharge pipe; 11. Annular groove; 12. Ball bearing. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figures 1-11This invention provides a technical solution: a hydrochloric acid purification device, comprising a base plate 1, a hollow base 2, a distillation chamber 3, and a pure water chamber 4. A docking plate 5 is movably disposed within the distillation chamber 3, and two connecting chambers 6 are disposed on the docking plate 5, located at opposite ends of the docking plate 5. A stirring blade 7 is installed on the connecting chamber 6, and the stirring blade 7 has turbulence holes 71. A splash suppression unit 8 connected to the stirring blade 7 is disposed within the distillation chamber 3, used to drive the stirring blade 7 to rotate to mix the liquid and eliminate temperature gradients when the hydrochloric acid liquid is heated, and can adjust the angle between the stirring blade 7 and the horizontal plane by the change in the temperature of the hydrochloric acid liquid to adapt to the mixing requirements of hydrochloric acid at different boiling stages. A separation unit 13 is disposed on the base plate 1 to perform segmented condensation of the evaporated hydrogen chloride gas to separate the aerosol in the hydrogen chloride gas.

[0033] The splash suppression unit 8 includes a docking member 9 disposed in the distillation chamber 3, which connects the stirring blade 7 to the distillation chamber 3. A driving member 10 is disposed on the base 2 to drive the stirring blade 7 in the distillation chamber 3 to rotate. A deflector 11 is disposed in the connecting chamber 6 to drive the stirring blade 7 to rotate. An adjusting member 12 is disposed in the distillation chamber 3 to drive the deflector 11 to work.

[0034] The docking component 9 includes a support frame 91 disposed within the distillation chamber 3. A fixed tube 92 is rotatably mounted on the support frame 91, and the bottom surface of the fixed tube 92 does not contact the distillation chamber 3. A connecting tube 93 is slidably mounted on the fixed tube 92. A compression spring 94 is disposed inside the fixed tube 92, and one end of the compression spring 94 is connected to the connecting tube 93. A rotating shaft 95 is rotatably mounted on the connecting tube 93. A limiting plate 96 is disposed on the rotating shaft 95. Locking blocks 97 are disposed on both sides of the limiting plate 96. A docking plate 5 has a docking groove 98 that cooperates with the limiting plate 96 and the locking blocks 97. A locking groove 99 is disposed on the docking plate 5 that cooperates with the locking blocks 97, and the locking groove 99 is connected to the docking groove 98.

[0035] Before distillation, the stirring blade 7 is first installed into the distillation chamber 3. During installation, the docking groove 98 on the docking plate 5 is aligned with the limiting plate 96 and the locking block 97. Then, the docking plate 5 is pressed down, compressing the connecting pipe 93 and the compression spring 94 connected to the connecting pipe 93 to retract. After the limiting plate 96 and the locking block 97 pass through the docking groove 98, the docking plate 5 is rotated so that the locking block 97 aligns with the locking groove 99. At this time, the docking plate 5 is fixed under the compression of the locking groove 99 and the compression spring 94, thus completing the installation of the stirring blade 7. Through the positioning and cooperation of the docking groove 98 with the limiting plate 96 and the locking block 97, as well as the elastic rebound of the compression spring 94, the stirring blade 7 is quickly installed and firmly fixed. This design not only simplifies the installation process and improves operating efficiency, but also ensures that the stirring blade 7 can operate stably during distillation, effectively avoiding problems such as uneven mixing caused by loosening or displacement, thereby ensuring the stability of the distillation process and the consistency of product quality. At the same time, it reduces equipment maintenance needs and extends the service life of the equipment.

[0036] The driving component 10 includes a drive shaft 101 rotatably disposed in the base 2. One end of the drive shaft 101 passes through the base plate 1. A drive motor 102 connected to the drive shaft 101 is disposed on the base plate 1. A power rod 103 is disposed at the end of the drive shaft 101 away from the drive motor 102. A power magnet 104 and a power magnet 105 that attract each other are respectively disposed on the stirring blade 7 and the power rod 103.

[0037] During hydrochloric acid distillation, the drive motor 102 is started, which drives the drive shaft 101 to rotate. The rotation of the drive shaft 101 drives the power rod 103 at its end to rotate synchronously. The rotation of the power rod 103 drives the second power magnet 105 mounted on it to rotate synchronously. When the second power magnet 105 rotates, it drives the first power magnet 104 mounted on the stirring blade 7 to rotate synchronously through magnetic force. This drives the stirring blade 7 connected to the power magnet to rotate synchronously. By driving the stirring blade 7 to rotate, the hydrochloric acid liquid can be fully mixed during the heating process. The device adopts a magnetic coupling transmission design. The second power magnet 105 drives the first power magnet 104 on the stirring blade 7 to rotate synchronously through magnetic force, realizing contactless power transmission. This design avoids the sealing and leakage problems that may occur in traditional mechanical connections, significantly improving the sealing performance of the distillation unit and ensuring the safe operation of the hydrochloric acid distillation process. Furthermore, since power transmission does not require physical contact, it reduces the chance of metal debris and corrosive media coming into contact with the equipment due to mechanical wear, thus lowering the risk of equipment corrosion. In addition, the continuous rotation of the stirring blades 7 ensures thorough mixing of the hydrochloric acid liquid during heating, effectively eliminating temperature gradients and promoting uniform heat transfer. Simultaneously, the uniformly mixed liquid helps improve distillation efficiency, shorten the distillation cycle, and reduce energy consumption. Thorough mixing reduces localized overheating or undercooling in the liquid, lowering the probability of impurity entrainment and aerosol formation, thereby improving the hydrochloric acid purification effect.

[0038] The deflecting component 11 includes a deflecting shaft 111 rotatably disposed within the connecting chamber 6. One end of the deflecting shaft 111 passes through the connecting chamber 6 and is connected to the stirring blade 7. A spiral groove 112 is formed on the deflecting shaft 111 at a position inside the connecting chamber 6. A sliding rod 113 is slidably disposed on the connecting chamber 6. A push rod 114 is disposed on the sliding rod 113 and is slidably connected to the spiral groove 112. A telescopic rod 115 is disposed on the sliding rod 113. One end of the telescopic rod 115 is connected to the inner wall of the connecting chamber 6. A return spring 116 is sleeved on the telescopic rod 115.

[0039] The adjusting component 12 includes a push plate 121 rotatably disposed at the bottom of the fixed tube 92. Multiple push blocks 122 are disposed on the edge of the push plate 121. A telescopic rod 123 is disposed at one end of the push plate 121 located inside the fixed tube 92. An adjusting motor 124 is disposed on the connecting tube 93. The power output end of the adjusting motor 124 is connected to the telescopic rod 123. A temperature sensor 125 is disposed inside the distillation chamber 3. The adjusting motor 124 is controlled to work by the temperature sensor 125.

[0040] When the temperature sensor 125 detects a temperature change in the distillation chamber 3, the regulating motor 124 is activated via a program. The regulating motor 124 drives the connected telescopic rod 123 to rotate, which in turn drives the push plate 121 to rotate. The push plate 121 then drives the push block 122 mounted on it to rotate. During rotation, the push block 122 gradually presses against the sliding rod 113, causing it to slide against the side wall of the connecting chamber 6. This sliding motion also drives the connected push rod 114 to move synchronously. As the push rod 114 moves, it slides within the spiral groove 112, thereby driving the deflection shaft 111 to rotate. The rotation of the deflection shaft 111 simultaneously drives the connected stirring blade 7 to rotate synchronously, thus altering the temperature. The angle between the stirring blade 7 and the horizontal plane is adjusted to adapt to the mixing requirements of hydrochloric acid at different boiling stages. The coordinated transmission design of the push block 122, sliding rod 113, and spiral groove 112 ensures a smooth and reliable angle adjustment process, avoiding component damage or angle deviation caused by mechanical impact. Through the linkage control of temperature sensor 125 and regulating motor 124, the angle of stirring blade 7 is dynamically adjusted according to the boiling stage of hydrochloric acid. It can accurately adapt to the mixing requirements without manual intervention. At the same time, in the pre-boiling, main boiling, and stabilization stages, the stirring tilt angle is changed through mechanical transmission to optimize the liquid mixing mode, such as suppressing splashing, accelerating gas release, and maintaining uniformity, thereby improving the overall distillation efficiency and reducing the risk of aerosol entrainment, thus improving the purification effect of hydrochloric acid.

[0041] The separation unit 13 includes a condenser 14 disposed on the base plate 1, which is used to condense the hydrogen chloride gas generated by distillation in stages. A recovery unit 15 is disposed on the condenser 14, which is used to recover the liquid generated by the condensation of aerosol.

[0042] The condenser 14 includes a rotating blade 141 mounted on a drive shaft 101, and the rotating blade 141 is located within the internal cavity of the base 2. A synchronization chamber 142 is mounted on the base plate 1, communicating with the internal cavity of the base 2. Multiple air guide pipes 143 are mounted on the synchronization chamber 142. A first condenser chamber 144 is mounted on the base plate 1, and a water-cooling circulation device is installed within the first condenser chamber 144. The first condenser chamber 144 is also connected to a pure water chamber 4. A connecting pipe 145 is provided on the first 144, and a second condensing chamber 146 is provided on the connecting pipe 145. A plurality of condensing plates 147 are provided in the second condensing chamber 146, and the condensing plates 147 are inclined. A flow groove 148 is opened in the condensing plate 147, one end of the flow groove 148 penetrates the side wall of the second condensing chamber 146, and a docking cavity 149 is opened on one side of the second condensing chamber 146, and the docking cavity 149 is connected to the flow groove 148 and the air guide pipe 143 respectively.

[0043] The recovery component 15 includes multiple guide channels 151 formed on the condenser plate 147. The condenser plate 147 has a recovery tank 152 that communicates with the guide channels 151. The condenser plate 147 is provided with a recovery pipe 153 that communicates with the recovery tank 152. The recovery pipe 153 is provided with a discharge pipe 154 that communicates with the lower liquid zone of the distillation chamber 3.

[0044] During continuous distillation, hydrogen chloride gas enters the second condenser chamber 146 through a pipe. The gas contacts the condenser plate 147. As the drive shaft 101 rotates, it drives the rotating blades 141, creating an airflow. This airflow is then delivered into the docking chamber 149 through the synchronization chamber 142 and the gas guide pipe 143. The gas in the docking chamber 149 flows through the flow channel 148, passing over the condenser plate 147 and the second condenser chamber 146. This causes high-boiling-point impurities in the hydrogen chloride gas in contact with the condenser plate 147, such as metal salts and organic matter, to condense prematurely. The condensed impurities combine with water vapor to form a liquid, which flows through the guide channel 151 into the recovery tank 152. It then enters the discharge pipe 154 through the recovery pipe 153 connected to the recovery tank 152, and is finally discharged back into the distillation chamber 3 through the discharge pipe 154. The hydrogen chloride gas, after preliminary condensation, is then... Hydrogen gas flows into condensation chamber 144 through gas pipe 143. After secondary condensation, it is discharged into pure water chamber 4 and mixed with ultrapure water to form high-purity hydrochloric acid. In the condensation treatment of hydrogen chloride gas, when the gas enters condensation chamber 146 and comes into full contact with condensing plate 147, the high-boiling-point impurities (such as metal salts, organic matter, etc.) contained therein are rapidly condensed. These condensed impurities combine with the surrounding water vapor to form a liquid mixture, which then flows smoothly into recovery tank 152 along the carefully designed guide channel 151. The condensing plate 147 is designed with an inclination to promote the flow of condensate along the slope and avoid liquid accumulation. Finally, the liquid containing impurities is sent back to distillation chamber 3 for secondary treatment through recovery pipe 153 and discharge pipe 154, thereby achieving efficient separation and recycling of impurities. This process effectively avoids the interference of impurities on the purity of the final hydrochloric acid product, ensuring the high quality of the product. At the same time, the rotating blades 141 form a stable and uniform airflow under drive. This design promotes the distribution of gas in the flow channel 148 within the condenser plate 147, significantly improving condensation efficiency and enabling more impurities to be effectively removed in the early stages.

[0045] Example 2: Please refer to Figure 12The present invention provides a technical solution: an annular groove 16 is provided on the side of the connecting pipe 93 that contacts the docking plate 5. A plurality of balls 17 are movably arranged in the annular groove 16. The balls 17 roll in the annular groove 16. The design of the annular groove 16 and the balls 17 transforms the traditional sliding friction into rolling friction, which greatly reduces the coefficient of friction and significantly reduces the resistance during the rotation of the stirring blade 7, making the rotation of the stirring blade 7 easier. At the same time, the reduction of friction directly reduces the wear of the contact surface between the connecting pipe 93 and the docking plate 5, extends the service life of the equipment, and reduces the maintenance costs caused by frequent replacement of parts.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A hydrochloric acid purification apparatus, comprising a base plate (1), a hollow base (2), a distillation chamber (3), and a pure water chamber (4), characterized in that: The distillation chamber (3) is equipped with a docking plate (5), which has two connecting chambers (6) located at both ends of the docking plate (5). The connecting chambers (6) are equipped with stirring blades (7), and the stirring blades (7) have turbulence holes (71). The distillation chamber (3) is equipped with a splash suppression unit (8) connected to the stirring blades (7), which is used to drive the stirring blades (7) to rotate when the hydrochloric acid liquid is heated to mix the liquid and eliminate the temperature gradient. It can also adjust the angle between the stirring blades (7) and the horizontal plane by changing the temperature of the hydrochloric acid liquid to adapt to the mixing requirements of hydrochloric acid at different boiling stages. The bottom plate (1) is equipped with a separation unit (13) for segmented condensation of the evaporated hydrogen chloride gas to separate the aerosol in the hydrogen chloride gas.

2. The hydrochloric acid purification apparatus according to claim 1, characterized in that: The splash suppression unit (8) includes a docking part (9) disposed in the distillation chamber (3) to connect the stirring blade (7) to the distillation chamber (3). A driving part (10) is disposed on the base (2) to drive the stirring blade (7) in the distillation chamber (3) to rotate. A deflector (11) is disposed in the connecting chamber (6) to drive the stirring blade (7) to rotate. An adjusting part (12) is disposed in the distillation chamber (3) to drive the deflector (11) to work.

3. The hydrochloric acid purification apparatus according to claim 2, characterized in that: The docking component (9) includes a support frame (91) disposed in the distillation chamber (3). A fixed tube (92) is rotatably disposed on the support frame (91), and the bottom surface of the fixed tube (92) does not contact the distillation chamber (3). A connecting tube (93) is slidably disposed on the fixed tube (92). A compression spring (94) is disposed inside the fixed tube (92), and one end of the compression spring (94) is connected to the connecting tube (93). A rotating shaft (95) is rotatably disposed on the connecting tube (93). A limiting plate (96) is disposed on the rotating shaft (95). A locking block (97) is disposed on both sides of the limiting plate (96). A docking groove (98) is opened on the docking plate (5) to cooperate with the limiting plate (96) and the locking block (97). A locking groove (99) is provided on the docking plate (5) to cooperate with the locking block (97), and the locking groove (99) is connected to the docking groove (98).

4. The hydrochloric acid purification apparatus according to claim 3, characterized in that: The driving component (10) includes a drive shaft (101) rotatably disposed in the base (2). One end of the drive shaft (101) passes through the base plate (1). A drive motor (102) connected to the drive shaft (101) is disposed on the base plate (1). A power rod (103) is disposed at the end of the drive shaft (101) away from the drive motor (102). A power magnet one (104) and a power magnet two (105) that attract each other are respectively disposed on the stirring blade (7) and the power rod (103).

5. The hydrochloric acid purification apparatus according to claim 4, characterized in that: The deflecting component (11) includes a deflecting shaft (111) rotatably disposed in the connecting chamber (6). One end of the deflecting shaft (111) passes through the connecting chamber (6) and is connected to the stirring blade (7). A spiral groove (112) is provided on the deflecting shaft (111) at a position inside the connecting chamber (6). A sliding rod (113) is slidably disposed on the connecting chamber (6). A push rod (114) is provided on the sliding rod (113) and is slidably connected to the spiral groove (112). A telescopic rod (115) is provided on the sliding rod (113). One end of the telescopic rod (115) is connected to the inner wall of the connecting chamber (6). A return spring (116) is sleeved on the telescopic rod (115).

6. The hydrochloric acid purification apparatus according to claim 5, characterized in that: The adjusting component (12) includes a push plate (121) rotatably disposed at the bottom of the fixed tube (92). Multiple push blocks (122) are disposed on the edge of the push plate (121). A telescopic rod (123) is disposed at one end of the push plate (121) located inside the fixed tube (92). An adjusting motor (124) is disposed on the connecting tube (93). The power output end of the adjusting motor (124) is connected to the telescopic rod (123). A temperature sensor (125) is disposed inside the distillation chamber (3). The adjusting motor (124) is controlled to work by the temperature sensor (125).

7. The hydrochloric acid purification apparatus according to claim 6, characterized in that: The separation unit (13) includes a condenser (14) disposed on the base plate (1), which is used to condense the hydrogen chloride gas generated by distillation in stages. A recovery unit (15) is disposed on the condenser (14), which is used to recover the liquid generated by condensing the aerosol.

8. The hydrochloric acid purification apparatus according to claim 7, characterized in that: The condenser (14) includes a rotating blade (141) mounted on a drive shaft (101), and the rotating blade (141) is located inside the cavity of the base (2). A synchronization chamber (142) is mounted on the base plate (1), and the synchronization chamber (142) is connected to the cavity inside the base (2). Multiple air guide pipes (143) are mounted on the synchronization chamber (142). A condenser chamber (144) is mounted on the base plate (1), and a water-cooled circulation device is mounted inside the condenser chamber (144). The condenser chamber (144) is connected to the pure water chamber (4). A connecting pipe (145) is provided on the first compartment (144), and a second condensing compartment (146) is provided on the connecting pipe (145). A plurality of condensing plates (147) are provided in the second condensing compartment (146), and the condensing plates (147) are inclined. A flow groove (148) is opened in the condensing plate (147), and one end of the flow groove (148) penetrates the side wall of the second condensing compartment (146). A docking cavity (149) is opened on one side of the second condensing compartment (146), and the docking cavity (149) is connected to the flow groove (148) and the air guide pipe (143) respectively.

9. The hydrochloric acid purification apparatus according to claim 8, characterized in that: The recovery component (15) includes multiple guide channels (151) formed on the condenser plate (147). The condenser plate (147) is provided with a recovery tank (152) that communicates with the guide channels (151). The condenser plate (147) is provided with a recovery pipe (153) that communicates with the recovery tank (152). The recovery pipe (153) is provided with a discharge pipe (154) that communicates with the lower liquid zone of the distillation chamber (3).

10. The hydrochloric acid purification apparatus according to claim 9, characterized in that: The connecting pipe (93) has an annular groove (16) on the side that contacts the docking plate (5), and multiple balls (17) are movably arranged in the annular groove (16).

Images