Stirring device for preparing sulfuric acid solution

Abstract

The invention belongs to the technical field of liquid preparation, and particularly relates to a stirring device for preparing a sulfuric acid solution, the stirring device comprises a mounting frame, a liquid containing pipe and a piston, a first cavity is formed in the liquid containing pipe, a first through hole is formed in the liquid containing pipe, and the piston is assembled in the first cavity in an up-down sliding mode; the transfer module is used for transferring liquid in the container to the position above the liquid level and enabling the liquid to flow down along the inner wall of the container, the transfer module comprises a flow guide plate, a moving pipe and a second closing plate, a second through hole communicated with the first cavity is formed in the liquid containing pipe above the flow guide plate, and the flow guide plate is provided with a first flow guide face for guiding the liquid to flow towards the inner wall of the container from the second through hole; a fourth through hole communicated with the second cavity is formed in the movable pipe, a fifth through hole communicated with the second cavity is formed in the bottom end of the movable pipe, the movable pipe is assembled on the mounting frame in an up-down sliding mode, and the closing plate is used for opening and closing the fourth through hole. The technical problem that in the sulfuric acid solution preparation process, the part, higher than the liquid level, of the water cooling jacket does not play a cooling role, and energy waste is caused can be solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of liquid preparation, and particularly relates to a stirring device for preparing sulfuric acid solution. Background Art

[0002] When preparing sulfuric acid solution, concentrated sulfuric acid needs to be poured into water along the side wall of the container in small amounts and multiple times. During the process of concentrated sulfuric acid dissolving in water, hydrogen ions and sulfate ions in sulfuric acid molecules dissociate in water, and a large amount of heat is released during the dissociation process. Therefore, after the preparation is completed, the sulfuric acid solution still remains at a relatively high temperature, and the liquid temperature needs to be lowered before transfer or use.

[0003] The Chinese patent document with the publication number CN209752818U discloses a dilution and cooling device for concentrated sulfuric acid, including a dilution water storage tank, a concentrated sulfuric acid storage tank, a dilution tank, a spiral heat exchange coil, a cooling water tank, and a dilute sulfuric acid storage tank; the dilution water storage tank is connected to the top of the dilution tank through a water inlet pipe, and the concentrated sulfuric acid storage tank is connected to the top of the dilution tank through an acid inlet pipe, so that the dilution water in the dilution water storage tank and the concentrated sulfuric acid in the concentrated sulfuric acid storage tank are mixed in the dilution tank; the bottom of the dilution tank is connected to the spiral heat exchange coil through an acid outlet pipe, so that the sulfuric acid coming out of the dilution tank enters the spiral heat exchange coil for cooling; the spiral heat exchange coil is connected to the dilute sulfuric acid storage tank through a cooling acid outlet pipe, so that the sulfuric acid coming out of the spiral heat exchange coil enters the dilute sulfuric acid storage tank for storage; the dilution tank and the spiral heat exchange coil are both placed in the cooling water tank. The above patent can reduce the temperature during the dilution of concentrated sulfuric acid and store the diluted sulfuric acid at a low temperature; in order to prevent local overheating, the height of the water cooling jacket (i.e., the cooling water tank) is higher than the liquid in the container. During the liquid cooling process, the part of the water cooling jacket that is not in contact with the liquid is not used for actual cooling, and the consumed energy is ineffective, resulting in energy waste. At the same time, the cooling time needs to be extended, further increasing the energy consumption. Summary of the Invention

[0004] The present invention provides a stirring device for preparing sulfuric acid solution to solve the technical problem that the water cooling jacket above the liquid level does not play a cooling role during the preparation of sulfuric acid solution, resulting in energy waste.

[0005] To solve the above problems, the present invention adopts the following technical solutions: A stirring device for preparing sulfuric acid solution includes a mounting frame, a turbulence module assembled on the mounting frame for stirring the liquid in the container, and a transfer module provided on the mounting frame. The transfer module is used to cooperate with the turbulence module to transfer the liquid in the container above the liquid level and flow down along the inner wall of the container; The turbulence module includes a liquid storage tube and a piston. A cavity one is provided in the liquid storage tube. A through hole one for the liquid in the container to enter and exit the cavity one is provided on the liquid storage tube. The piston is slidably assembled up and down in the cavity one; The transfer module includes a flow guide plate, a moving pipe, and a second closing plate. The flow guide plate is assembled outside the liquid storage pipe. A second through hole communicating with the first cavity is provided on the liquid storage pipe above the flow guide plate. The flow guide plate has a first flow guiding surface for guiding the liquid to flow from the second through hole to the inner wall of the container. The moving pipe is located above the piston. A second cavity is provided inside the moving pipe. A fourth through hole communicating with the second cavity is provided on the side wall of the moving pipe. A fifth through hole communicating with the second cavity is provided at the bottom end of the moving pipe. The moving pipe is slidably assembled up and down on the mounting rack. The second closing plate is slidably assembled up and down on the moving pipe. The second closing plate is used to close or open the fourth through hole to control the on-off between the second cavity and the space above the first flow guiding surface. The piston is used to close or open the fifth through hole to control the on-off between the first cavity and the second cavity.

[0006] The beneficial effects are as follows: The piston moves up and down, driving the liquid in the container to mix. This plunger-type stirring can generate turbulence in a local area, increasing the chance of molecular diffusion and accelerating the mixing process. During the upward movement of the piston, the moving pipe cooperates with the piston and the second closing plate to transport the liquid in the moving pipe upward. The second closing plate opens the fourth through hole, enabling the liquid in the moving pipe to flow through the fourth through hole and the second through hole to the first flow guiding surface, and flow down along the inner wall of the container under the guidance of the first flow guiding surface, making use of the inner wall of the container that is not in contact with the water cooling jacket, improving the resource utilization rate, and accelerating the cooling process.

[0007] Further, the mounting rack is provided with a first closing plate. The first closing plate is located above the piston. The first closing plate is used to close or open the fifth through hole to control the on-off between the first cavity and the second cavity. When the fourth through hole and the second through hole correspond to each other, the first closing plate closes the fifth through hole.

[0008] The beneficial effects are as follows: When the first closing plate closes the fifth through hole, the piston can be moved downward. At this time, the liquid in the moving pipe will not leak downward, realizing the continuous reciprocating movement of the piston, improving the working efficiency of the piston, and enabling the liquid to be fully and quickly mixed.

[0009] Further, the first closing plate has a third through hole that penetrates up and down. There is a gap between the third through hole and the fifth through hole in the horizontal direction.

[0010] The beneficial effects are as follows: When the moving pipe and the piston move upward synchronously, the liquid in the moving pipe moves to the upper part of the first closing plate after passing through the third through hole, timely relieving the pressure between the moving pipe and the first closing plate, avoiding excessive pressure, and protecting the safety of the device.

[0011] Further, there is a gap for the liquid to flow down along the inner wall of the container between the outer peripheral surface of the bottom end of the flow guide plate and the inner wall of the container. A pressure relief pipe is assembled on the flow guide plate. The pressure relief pipe connects the space formed by enclosing the flow guide plate and the container with the external space of the container.

[0012] Further, a condensing pipe is assembled on the pressure relief pipe. The condensing pipe is used to condense the gas overflowing from the pressure relief pipe into a liquid and guide the liquid to the first flow guiding surface.

[0013] The beneficial effects are as follows: A large amount of heat is generated during the process of concentrated sulfuric acid dissolving in water. The pressure relief pipe is used to timely relieve the pressure between the deflector plate and the liquid level, enabling the liquid between the guide plate and the splash guard plate to flow down along the inner wall of the container in a timely manner, improving the operation efficiency of the device. At the same time, the gas overflowing from the pressure relief pipe is condensed into liquid and then refluxed, avoiding waste of resources.

[0014] Further, a splash guard plate is provided above the deflector plate. The second through hole is located between the deflector plate and the splash guard plate. The bottom surface of the splash guard plate has a second deflector surface for guiding the liquid to flow from the second through hole to the inner wall of the container. The outer peripheral surface of the bottom end of the splash guard plate is in contact with the inner wall of the container.

[0015] The beneficial effects are as follows: When a large amount of liquid flows through the fourth through hole and the second through hole to the deflector plate, splashing is likely to occur. The splash guard plate effectively prevents the liquid from splashing out of the container, ensuring production safety. The second deflector surface enables the liquid splashing on the splash guard plate to flow towards the inner wall of the container, avoiding waste.

[0016] Further, the splash guard plate and the deflector plate are fixedly connected through a connecting member. The connecting member is provided with an avoidance hole for the liquid storage pipe to pass through up and down. A sixth through hole communicating with the avoidance hole is provided on the side wall of the connecting member. The connecting member is slidably assembled up and down outside the liquid storage pipe.

[0017] The beneficial effects are as follows: The connecting member drives the deflector plate and the splash guard plate to move up and down. When the deflector plate moves up above the container, it is convenient to add concentrated sulfuric acid. After the concentrated sulfuric acid is added, the connecting member moves down until the splash guard plate is located inside the container to close the opening of the container, blocking the acid mist from overflowing from the container, ensuring production safety.

[0018] Further, a bottom plate is provided at the bottom end of the moving pipe. The fifth through hole is located on the bottom plate. A second convex plate adapted to the fifth through hole is provided at the top end of the piston. When the piston is in contact with the bottom surface of the bottom plate, the outer peripheral surface of the second convex plate is in contact with the inner peripheral surface of the fifth through hole. A ring-shaped convex plate one is fixedly provided below the closing plate one. A ring-shaped card slot communicating with the second cavity and adapted to the convex plate one is provided on the bottom plate.

[0019] The beneficial effects are as follows: The settings of the convex plate one and the convex plate two increase the sealing surface area when the piston and the closing plate one seal the fifth through hole, ensuring that more liquid is transported above the liquid level and improving the utilization rate of the water cooling jacket.

[0020] Further, the mounting frame is slidably assembled up and down on the frame. A moving seat is horizontally slidably assembled on the frame. The container and the water cooling jacket are placed on the moving seat. The water cooling jacket is sleeved outside the container.

[0021] The beneficial effects are as follows: When the mounting frame moves up, the liquid storage pipe is moved out of the container. The moving seat slides, pushing the container away from the mounting frame horizontally, facilitating the removal of the container.

[0022] Further, the movable tube is connected to the linear actuator III, and the linear actuator III is used to drive the movable tube to move up and down; the piston is connected to the linear actuator IV, and the linear actuator IV is used to drive the piston to move up and down; the closing plate II is connected to the linear actuator V, and the linear actuator V is used to drive the closing plate II to move up and down. The linear actuator III, the linear actuator IV, and the linear actuator V are all located above the liquid storage tube.

[0023] The beneficial effects are as follows: The linear actuator III, the linear actuator IV, and the linear actuator V will not come into contact with the sulfuric acid solution during operation, preventing the components of each linear actuator from being corroded and damaged, and improving the operation stability of the device.

[0024] The beneficial effects of the present invention are as follows: During the use of the present invention, when the piston moves downward, it compresses the liquid below the piston, forcing the liquid to enter the container through the through hole I. When the piston moves upward, a low-pressure area is formed below the piston, causing the liquid in the container to flow back into the cavity I through the through hole I, thereby promoting the mixing between different regions. During the mixing process, the piston moves up and down rapidly to generate turbulence, accelerating the mixing process. At the same time, the liquid will not splash, ensuring the safety of the process of adding concentrated sulfuric acid to the solvent; during the upward movement of the piston, it can also cooperate with the closing plate II to transport the liquid in the movable tube upward and flow down along the inner wall of the container, making use of the inner wall of the container that is not in contact with the water cooling jacket, improving the resource utilization rate, and accelerating the cooling process; during the process of sulfuric acid dissolving in the solvent and cooling, the splash-proof plate covers the opening of the container, reducing the escape of acid mist. At the same time, when the internal pressure of the container suddenly increases due to the rapid temperature rise of the liquid caused by the dissolution of concentrated sulfuric acid in water, the pressure relief tube can timely relieve the internal pressure of the container. The sulfuric acid vapor and water vapor carried in the acid mist overflowing from the pressure relief tube are condensed into liquid by the condenser tube, reducing the risk of container rupture and avoiding the escape of acid mist, preventing resource waste. Compared with the pump transportation, the present invention has higher safety. The transportation of the sulfuric acid solution is realized through the mutual cooperation between the linear actuators arranged outside the liquid storage tube, without coming into contact with the sulfuric acid solution. Even if too much concentrated sulfuric acid is accidentally added and the liquid boils, the device can still operate normally and efficiently. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a schematic exploded view of the mounting frame and the frame; Figure 3 It is a schematic installation structure diagram of the liquid storage tube; Figure 4 It is a schematic exploded view of the liquid storage tube, the piston, and the linear actuator IV; Figure 5 It is a schematic exploded view of the drainage member; Figure 6 It is a schematic exploded view of the pressure relief tube and the condenser tube; Figure 7 Schematic diagram of the installation structure of the moving pipe; Figure 8 Schematic diagram of the assembly structure of the first closing plate; Figure 9 Schematic diagram of the disassembled structure of the second closing plate and the moving pipe; Figure 10 Schematic diagram of the disassembled structure of the water-cooling jacket and the container; Figure 11 Schematic diagram of the disassembled structure when the first closing plate closes the fifth through-hole and there is a distance between the piston and the bottom plate; Figure 12 Schematic diagram of the structure when the piston closes the fifth through-hole and there is a distance between the first closing plate and the bottom plate; Figure 13 Schematic diagram of the structure when the second closing plate closes the fourth through-hole; Figure 14 Schematic diagram of the structure when the first closing plate and the piston close the fifth through-hole simultaneously; Figure 15 Schematic diagram of the structure of the device when the container is removed.

[0026] Explanation of reference numerals: 1. Mounting frame; 2. Container; 3. First linear actuator; 4. Second linear actuator; 5. Third linear actuator; 6. Fourth linear actuator; 7. Fifth linear actuator; 8. Sixth linear actuator; 9. Frame; 10. Liquid storage pipe; 11. First through-hole; 12. Second through-hole; 13. Third through-hole; 14. Fourth through-hole; 15. Fifth through-hole; 16. Sixth through-hole; 17. Piston; 18. First mounting plate; 19. Second mounting plate; 20. Third mounting plate; 21. First connecting rod; 22. Second connecting rod; 23. Third connecting rod; 24. First closing plate; 25. Second closing plate; 26. Deflector; 27. Splash guard; 28. Connector; 29. Moving pipe; 30. Pressure relief pipe; 31. Condensing pipe; 32. Third vertical pipe; 33. V-shaped pipe; 34. Water-cooling pipe; 35. Drainage pipe; 36. Bottom plate; 37. Fourth connecting rod; 38. Water-cooling jacket; 39. Moving seat; 40. First convex plate; 41. Second convex plate; 42. Card slot. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the following described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present invention.

[0028] A stirring device for preparing sulfuric acid solution, as Figure 1As shown in the figure, it includes a mounting bracket 1, a turbulence module assembled on the mounting bracket 1 for stirring the liquid in the container 2, and a transfer module arranged on the mounting bracket 1. The transfer module is used to cooperate with the turbulence module to transfer the liquid in the container 2 above the liquid level and flow down along the inner wall of the container 2.

[0029] The mounting bracket 1 is slidably assembled on the frame 9 up and down through a first linear actuator 3. As Figure 2 shown in the figure, the frame 9 includes a fixed bracket placed on the ground and a second vertical pipe fixedly assembled on the fixed bracket. Both sides of the bottom surface of the mounting bracket 1 are fixedly assembled with first vertical pipes. The first vertical pipes are inserted into the second vertical pipes and the outer peripheral surface of the first vertical pipes is in contact with the inner peripheral surface of the second vertical pipes. The first linear actuator 3 extends up and down and is located inside the first vertical pipes. The fixed end of the first linear actuator 3 is fixedly assembled on the frame 9, and the output end of the first linear actuator 3 is fixedly connected to the mounting bracket 1.

[0030] The turbulence module includes a liquid holding pipe 10, a piston 17, and a fourth linear actuator 6 for driving the piston 17 to move up and down inside the liquid holding pipe 10. As Figure 3 and Figure 4 shown in the figure, the liquid holding pipe 10 is a circular pipe with a cylindrical cavity one extending up and down and penetrating inside. A plurality of first through holes 11 are provided at the lower part of the liquid holding pipe 10, and a plurality of second through holes 12 are provided on the liquid holding pipe 10 above the first through holes 11. Both the first through holes 11 and the second through holes 12 are communicated with the cavity one; the piston 17 is located inside the liquid holding pipe 10, and the outer peripheral surface of the piston 17 is in contact with the outer peripheral surface of the liquid holding pipe 10. An installation plate two 19 is provided above the piston 17. The installation plate two 19 and the piston 17 are fixedly connected through a third connecting rod 23 extending up and down. The fixed end of the fourth linear actuator 6 is vertically fixedly assembled on the mounting bracket 1, and the output end of the fourth linear actuator 6 is fixedly connected to the installation plate two 19. The fourth linear actuator 6 drives the piston 17 to move up and down, and further drives the liquid in the liquid holding pipe 10 to enter and exit the liquid holding pipe 10 along the first through holes 11 and the bottom opening of the liquid holding pipe 10, while stirring the liquid in the container 2 evenly and preventing the liquid from splashing.

[0031] The transfer module includes a drainage member, a moving pipe 29, a first closing plate 24, and a second closing plate 25. The drainage member is slidably assembled outside the liquid holding pipe 10 up and down, and the moving pipe 29, the first closing plate 24, and the second closing plate 25 are all located inside the liquid holding pipe 10 in the vertical direction.

[0032] As Figure 5As shown, the drainage member includes a diversion plate 26, a splash guard 27, and a connecting member 28. The splash guard 27 is located above the diversion plate 26. The top of the diversion plate 26 has a first diversion surface, and the bottom of the splash guard 27 has a second diversion surface. Both the first diversion surface and the second diversion surface are conical surfaces with a gradually increasing diameter from top to bottom. The connecting member 28 is an annular plate that penetrates up and down. The connecting member 28 is fixedly assembled between the splash guard 27 and the diversion plate 26. An avoidance hole for the liquid storage tube 10 to pass through up and down is provided inside the connecting member 28, and a through hole six 16 communicating with the avoidance hole is provided on the side wall of the connecting member 28; The diversion plate 26 is slidably assembled outside the liquid storage tube 10 through a linear actuator two 4. Refer to Figure 3 , the fixed end of the linear actuator two 4 is vertically fixedly assembled on the mounting bracket 1, the output end of the linear actuator two 4 is fixedly connected to the splash guard 27. When the linear actuator two 4 drives the drainage member to move until the through hole six 16 and the through hole two 12 are opposite, the drainage member is located inside the container 2, the outer peripheral surface of the bottom end of the splash guard 27 is in contact with the inner wall of the container 2, and there is a gap between the outer peripheral surface of the bottom end of the diversion plate 26 and the inner wall of the container 2.

[0033] As Figure 5 and Figure 6 shown, a pressure relief pipe 30 is assembled on the diversion plate 26. The pressure relief pipe 30 includes a vertical pipe three 32 and a V-shaped pipe 33. The vertical pipe three 32 is vertically fixedly assembled on the diversion plate 26 and communicates with the internal space of the container 2 below the diversion plate 26. The splash guard 27 has a cleaning hole for the vertical pipe three 32 to vertically pass through, and the inner peripheral surface of the cleaning hole is in contact with the outer peripheral surface of the pressure relief pipe 30. One end of the V-shaped pipe 33 is fixedly assembled on the vertical pipe three 32 and communicates with the vertical pipe three 32; The condensing pipe 31 includes a water cooling pipe 34 and a drainage pipe 35. The water cooling pipe 34 is a hollow structure, and a water inlet pipe and a water outlet pipe are provided on the water cooling pipe 34. The water cooling pipe 34 is sleeved on the other end of the V-shaped pipe 33, and there is a gap between the inner peripheral surface of the water cooling pipe 34 and the outer peripheral surface of the V-shaped pipe 33. The drainage pipe 35 is fixedly assembled on the water cooling pipe 34, and the bottom end of the drainage pipe 35 is fixedly assembled on the splash guard 27 and communicates with the space between the splash guard 27 and the drainage pipe 35.

[0034] The moving pipe 29 is located between the piston 17 and the mounting plate two 19. The piston 17 is located below the moving pipe 29, and the mounting plate two 19 is located above the moving pipe 29; As Figure 7 shown, a cavity two extending up and down is provided inside the moving pipe 29. A through hole four 14 communicating with the cavity two is provided on the side wall of the moving pipe 29. A bottom plate 36 is fixedly provided on the bottom end surface of the moving pipe 29. A through hole five 15 communicating with the cavity two and extending up and down is provided on the bottom plate 36. An upper mounting plate 18 is provided directly above the moving pipe 29. The upper mounting plate 18 and the moving pipe 29 are fixedly connected by a connecting rod one 21 extending up and down. The moving pipe 29 is slidably assembled on the mounting bracket 1 through a linear actuator three 5. The fixed end of the linear actuator three 5 is vertically fixedly assembled on the mounting bracket 1, and the output end of the linear actuator three 5 is fixedly connected to the upper mounting plate 18.

[0035] As shown Figure 8 in the figure, the first closing plate 24 has a through hole three 13 that penetrates up and down. There is a gap between the through hole three 13 and the through hole five 15 in the horizontal direction. The first closing plate 24 is fixedly connected to the mounting frame 1 through a connecting rod two 22 that extends up and down. When the linear actuator three 5 drives the moving tube 29 to move upward until the bottom surface of the first closing plate 24 fits against the top surface of the bottom plate 36, the first closing plate 24 is located inside the moving tube 29 and closes the through hole five 15. At this time, the through hole two 12 and the through hole four 14 correspond to each other.

[0036] As shown Figure 9 in the figure, the second closing plate 25 is an annular plate. The outer peripheral surface of the second closing plate 25 fits against the inner wall of the moving tube 29. Above the second closing plate 25, there is a mounting plate three 20. The mounting plate three 20 is located above the mounting plate one 18. The second closing plate 25 is fixedly connected to the mounting plate three 20 through a connecting rod four 37 that extends up and down. The second closing plate 25 is slidably assembled up and down on the mounting plate one 18 through a linear actuator five 7. The fixed end of the linear actuator five 7 is fixedly assembled on the mounting plate one 18. The output end of the linear actuator five 7 is fixedly connected to the mounting plate three 20. When the linear actuator five 7 drives the second closing plate 25 to move downward until it fits against the bottom plate 36, the second closing plate 25 closes the through hole four 14, and the through hole four 14 and the cavity two are no longer connected.

[0037] In the present invention, as shown Figure 1 and Figure 10 in the figure, the water cooling jacket 38 is fixedly placed on the moving seat 39. The moving seat 39 is a horizontally placed rectangular plate-like structure. The inside of the water cooling jacket 38 is used to place the container 2. The side wall of the container 2 fits against the inner peripheral surface of the water cooling jacket 38.

[0038] The linear actuator one 3, the linear actuator two 4, the linear actuator three 5, the linear actuator four 6, and the linear actuator five 7 are electric push rods or hydraulic rods. The linear actuator three 5, the linear actuator four 6, and the linear actuator five 7 are all located above the liquid storage tube 10. A PLC is assembled on the frame 9. The linear actuator one 3, the linear actuator two 4, the linear actuator three 5, the linear actuator four 6, and the linear actuator five 7 are all electrically connected to the output end of the PLC.

[0039] The usage method of the present invention is as follows: Add water into the container 2. The liquid level height of the water is lower than the height of the water cooling jacket 38. Shorten the linear actuator one 3, and the lower end of the liquid storage tube 10 enters the water. Shorten the linear actuator two 4, and the drainage member moves out of the container 2 and is located above the container 2. Slowly add concentrated sulfuric acid along the inner wall of the container 2 into the water; ① Extend the linear actuator two 4, and the drainage member enters the container 2. Refer to Figure 5, until the through hole six 16 corresponds to and communicates with the through hole two 12; at this time, the relationship among the first closing plate 24, the piston 17 and the moving tube 29 is as Figure 11 shown. The bottom surface of the first closing plate 24 is attached to the top surface of the bottom plate 36. The first closing plate 24 closes the through hole five 15. The piston 17 is located below the moving tube 29. The through hole four 14 corresponds to and communicates with the through hole two 12. The second closing plate 25 moves upward, and the through hole four 14 communicates with the cavity two inside the moving tube 29; ② As Figure 12 shown, extend the linear actuator three 5, and the moving tube 29 and the second closing plate 25 move downward synchronously. The first closing plate 24 is separated from the bottom plate 36 until the piston 17 is attached to the bottom surface of the bottom plate 36. At this time, the piston 17 closes the bottom opening of the through hole five 15, and the liquid enters the moving tube 29 from the through hole four 14; ③ As Figure 13 shown, shorten the linear actuator five 7. The bottom surface of the second closing plate 25 is attached to the top surface of the bottom plate 36. The second closing plate 25 closes the through hole four 14, and the liquid remains in the moving tube 29; ④ As Figure 14 shown, synchronously shorten the linear actuator three 5 and the linear actuator four 6. The moving tube 29 and the piston 17 move upward synchronously until the first closing plate 24 contacts the top surface of the bottom plate 36, and the first closing plate 24 closes the top opening of the through hole five 15; To prevent the liquid from flowing out from the contact surface between the piston 17 and the bottom surface of the bottom plate 36 and the contact surface between the first closing plate 24 and the top surface of the bottom plate 36, and ensure that more liquid flows to the inner wall of the container 2 above the liquid level, a second convex plate 41 is fixedly arranged above the piston 17. When the linear actuator four 6 drives the piston 17 to move upward until it contacts the bottom plate 36, the second convex plate 41 is engaged in the through hole five 15 and closes the bottom opening of the through hole five 15; a ring-shaped first convex plate 40 is fixedly arranged below the first closing plate 24, and a ring-shaped card slot 42 communicating with the cavity two is arranged on the bottom plate 36. The through hole five 15 is located in the card slot 42 in the vertical direction. When the linear actuator three 5 drives the moving tube 29 to move upward until the first convex plate 40 is engaged in the card slot 42, the first closing plate 24 contacts the top surface of the bottom plate 36 and closes the top opening of the through hole five 15, increasing the contact area between the piston 17 and the bottom plate 36 and between the first closing plate 24 and the bottom plate 36, and improving the sealing performance; ⑤Shorten the linear actuator five 7, move the closing plate two 25 upward, and the liquid in the moving pipe 29 flows into the cavity three formed by the deflector plate 26, the splash guard 27 and the inner wall of the container 2 along the through hole four 14, the through hole two 12 and the through hole six 16. Due to the through hole three 13 and the through hole one 11, the inside of the container 2 is connected to the outside world, and the liquid remaining in the cavity three can flow down along the side wall of the container 2, and the water-cooling jacket 38 above the liquid level is utilized, improving the utilization rate of the water-cooling jacket 38 and increasing the cooling speed; while the linear actuator five 7 is shortened, the linear actuator four 6 is extended to drive the piston 17 to move downward, and the piston 17, the moving pipe 29 and the closing plate one 24 return to Figure 11 the original state.

[0040] Repeat steps ①-⑤ to stir and cool the liquid.

[0041] In order to remove the container 2 from the water-cooling jacket 38, universal wheels are assembled on the bottom surface of the moving seat 39, and two linear actuators six 8 are horizontally assembled on the frame 9. The fixed end of the linear actuator six 8 is fixedly assembled on the frame 9, and the output end of the linear actuator five 7 is fixedly connected to the moving seat 39. As Figure 15 shown, after the sulfuric acid solution is configured and cooled, the linear actuator one 3 extends to drive the liquid holding pipe 10 out of the container 2, and the linear actuator six 8 extends to push the container 2 horizontally away from the mounting frame 1. At this time, the container 2 can be lifted out.

Claims

1. A stirring device for preparing sulfuric acid solution, characterized in that, It includes a mounting frame, a flow disturbance module mounted on the mounting frame for stirring the liquid in the container, and a transfer module arranged on the mounting frame, the transfer module is used to cooperate with the flow disturbance module to transfer the liquid in the container to the upper side of the liquid surface and flow down along the inner wall of the container; The spoiler module includes a liquid storage tube and a piston. A cavity is provided in the liquid storage tube. A through hole is provided on the liquid storage tube for allowing the liquid in the container to enter and exit the cavity. The piston is slidably assembled in the cavity. The transfer module includes a guide plate, a moving tube and a closing plate 2. The guide plate is installed outside the liquid containing tube. The liquid containing tube above the guide plate is provided with a through hole 2 connected to the cavity 1. The guide plate has a guide surface 1 for guiding the liquid to flow from the through hole 2 to the inner wall of the container; the moving tube is located above the piston, and the moving tube is provided with a cavity 2. The side wall of the moving tube is provided with a through hole 4 connected to the cavity 2. The bottom end of the moving tube is provided with a through hole 5 connected to the cavity 2. The moving tube is slidably installed on the mounting frame up and down; the closing plate 2 is slidably installed on the moving tube up and down. The closing plate 2 is used to close or open the through hole 4 to control the connection between the cavity 2 and the space above the guide surface 1. The piston is used to close or open the through hole 5 to control the connection between the cavity 1 and the cavity 2.

2. The stirring device for preparing sulfuric acid solution according to claim 1, wherein, The mounting frame is provided with a closing plate 1, which is located above the piston. The closing plate 1 is used to close or open the through hole 5 to control the connection between the cavity 1 and the cavity 2. When the through hole 4 corresponds to the through hole 2, the closing plate 1 closes the through hole 5.

3. The stirring device for preparing sulfuric acid solution according to claim 2, characterized in that, The first closing plate is provided with a through hole three which passes through from top to bottom, and there is a gap between the through hole three and the through hole five in the horizontal direction.

4. A stirring device for preparing sulfuric acid solution according to claim 3, characterized in that, There is a gap between the outer peripheral surface of the bottom end of the guide plate and the inner wall of the container for liquid to flow down along the inner wall of the container. The guide plate is equipped with a pressure relief pipe, which connects the space formed by the guide plate and the container with the space outside the container.

5. A stirring device for preparing sulfuric acid solution according to claim 4, characterized in that, The pressure relief pipe is equipped with a condenser pipe, which is used to condense the gas overflowing from the pressure relief pipe into liquid and guide the liquid to flow toward the first guide surface.

6. The stirring device for preparing sulfuric acid solution according to claim 5, characterized in that, A splash plate is arranged above the guide plate, the second through hole is located between the guide plate and the splash plate, the bottom surface of the splash plate has a second guide surface for guiding the liquid to flow from the second through hole to the inner wall of the container, and the outer peripheral surface of the bottom end of the splash plate is in contact with the inner wall of the container.

7. A stirring device for preparing sulfuric acid solution according to claim 6, characterized in that, The splash plate is fixedly connected to the guide plate through a connecting piece, a avoidance hole is arranged in the connecting piece for the liquid storage pipe to pass through up and down, a through hole 6 connected to the avoidance hole is arranged on the side wall of the connecting piece, and the connecting piece is slidably assembled outside the liquid storage pipe up and down.

8. A stirring device for preparing sulfuric acid solution according to claim 7, characterized in that, A bottom plate is provided at the bottom end of the moving tube, and a through hole five is located on the bottom plate. A convex plate two adapted to the through hole five is provided at the top end of the piston. When the piston fits with the bottom surface of the bottom plate, the outer circumference of the convex plate two fits with the inner circumference of the through hole five. An annular convex plate one is fixedly provided below the closing plate one, and an annular groove connected with the cavity two and adapted to the convex plate one is provided on the bottom plate.

9. A stirring device for preparing sulfuric acid solution according to claim 8, characterized in that: The mounting frame is assembled on the frame by sliding up and down, and the frame is assembled on the moving seat by sliding horizontally. The container and the water cooling jacket are placed on the moving seat, and the water cooling jacket is sheathed outside the container.

10. A stirring device for preparing sulfuric acid solution according to claim 9, characterized in that, The movable tube is connected to linear actuator three, and linear actuator three is used to drive the movable tube to move up and down; the piston is connected to linear actuator four, and linear actuator four is used to drive the piston to move up and down; the closing plate two is connected to linear actuator five, and linear actuator five is used to drive the closing plate two to move up and down. Linear actuator three, linear actuator four and linear actuator five are all located above the liquid storage tube.

Images