A stirring device for preparing sulfuric acid solution

Abstract

The present invention belongs to the technical field of liquid preparation, and in particular relates to a stirring device for preparing sulfuric acid solution, comprising a mounting frame, a liquid holding tube, and a piston. The liquid holding tube is provided with a cavity (I), a through-hole (I) on the liquid holding tube, and the piston is slidably mounted in the cavity (I). The device also includes a transfer module for transferring liquid in a container to a position above the liquid level and flowing down the inner wall of the container. The transfer module includes a guide plate, a moving tube, and a closing plate (II). The liquid holding tube above the guide plate is provided with a through-hole (II) communicating with the cavity (I). The guide plate has a guiding surface (I) for guiding the liquid from the through-hole (II) to the inner wall of the container. The moving tube is provided with a through-hole (Four) communicating with the cavity (II), and a through-hole (Five) communicating with the cavity (II) at its bottom end. The moving tube is slidably mounted on the mounting frame, and the closing plate is used to open and close the through-hole (Four). The present invention can solve the technical problem that during the preparation of sulfuric acid solution, the water cooling jacket above the liquid level fails to cool the liquid, resulting in energy waste.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid configuration, and in particular relates to a stirring device for configuring sulfuric acid solution. Background Art

[0002] When preparing the sulfuric acid solution, concentrated sulfuric acid needs to be poured into the water along the side wall of the container in small amounts and multiple times. During the process of concentrated sulfuric acid dissolving in water, the hydrogen ions and sulfate ions in the sulfuric acid molecules dissociate in the water. The dissociation process is accompanied by the release of a large amount of heat. Therefore, after the preparation is completed, the sulfuric acid solution still maintains a relatively high temperature. The liquid temperature needs to be lowered before it can be transferred or used.

[0003] The Chinese patent document with the announcement 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 out of the dilution tank enters the spiral heat exchange coil for cooling; the spiral heat exchange coil is cooled by cooling the dilution water storage tank. The acid outlet pipe is connected to the dilute sulfuric acid storage tank, 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 of the concentrated sulfuric acid during the dilution process, and at the same time, the diluted sulfuric acid can be stored 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 energy consumed is ineffective, resulting in energy waste. At the same time, the cooling time needs to be extended, further increasing energy consumption. Summary of the Invention

[0004] The invention provides a stirring device for preparing sulfuric acid solution, which solves the technical problem that during the preparation of sulfuric acid solution, a water cooling jacket above the liquid level fails to play a cooling role, resulting in energy waste.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A stirring device for dispensing sulfuric acid solution, comprising a mounting frame, a flow disturbance module mounted on the mounting frame for stirring liquid in a container, and a transfer module disposed on the mounting frame, the transfer module being configured to cooperate with the flow disturbance module to transfer the liquid in the container to a position above the liquid surface and allow the liquid to flow down the inner wall of the container;

[0007] The flow disturbance 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 liquid in the container to enter and exit the cavity. The piston is slidably assembled in the cavity.

[0008] The transfer module includes a guide plate, a movable tube and a closing plate 2. The guide plate is assembled outside the liquid storing tube. The liquid storing 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 movable tube is located above the piston, and a cavity 2 is provided in the movable tube. A through hole 4 connected to the cavity 2 is provided on the side wall of the movable tube, and a through hole 5 connected to the cavity 2 is provided at the bottom end of the movable tube. The movable tube is assembled on the mounting frame for sliding up and down; the closing plate 2 is assembled on the movable tube for sliding 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.

[0009] The beneficial effect is that 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, increase the chance of molecular diffusion, and accelerate the mixing process. During the upward movement of the piston, the mobile tube cooperates with the piston and the second closing plate to transport the liquid in the mobile tube upward. The second closing plate opens the fourth through-hole, so that the liquid in the mobile tube passes through the fourth through-hole and the second through-hole to the first guide surface, and flows down along the inner wall of the container under the guidance of the first guide surface, so that the part of the inner wall of the container that is not in contact with the water cooling jacket is utilized, thereby improving resource utilization and accelerating the cooling process.

[0010] Furthermore, 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 cavity 1 and cavity 2. When the through hole 4 corresponds to the through hole 2, the closing plate 1 closes the through hole 5.

[0011] The beneficial effect is that when the closing plate closes the through hole 5, the piston can be moved downward. At this time, the liquid in the movable tube will not leak downward, realizing continuous reciprocating motion of the piston, improving the working efficiency of the piston, and making the liquid fully and quickly mixed.

[0012] Furthermore, the closing plate 1 has a through hole 3 which passes through the closing plate 1 vertically, and there is a gap between the through hole 3 and the through hole 5 in the horizontal direction.

[0013] The beneficial effect is that when the moving tube and the piston move upward synchronously, the liquid in the moving tube passes through the through hole three and moves to the top of the closing plate one, thereby timely releasing the pressure between the moving tube and the closing plate one, avoiding excessive pressure and protecting the safety of the device.

[0014] Furthermore, 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 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.

[0015] Furthermore, a condenser is installed on the pressure relief pipe, and the condenser 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.

[0016] The beneficial effect is that a large amount of heat is generated in the process of concentrated sulfuric acid dissolving in water. The pressure relief pipe is used to promptly relieve the pressure between the guide plate and the liquid surface, so that the liquid between the guide plate and the splash plate can flow down along the inner wall of the container in time, thereby improving the operating efficiency of the device. At the same time, the gas overflowing the pressure relief pipe is condensed into liquid and then refluxed, thereby avoiding waste of resources.

[0017] Furthermore, a splash guard is provided above the guide plate, through hole 2 is located between the guide plate and the splash guard, the bottom surface of the splash guard has a guide surface 2 for guiding the liquid to flow from through hole 2 to the inner wall of the container, and the outer peripheral surface of the bottom end of the splash guard is in contact with the inner wall of the container.

[0018] The beneficial effect is that when liquid flows into the guide plate in large quantities through through hole four and through hole two, splashing is likely to occur. The splash guard effectively prevents the liquid from splashing out of the container, ensuring production safety; the guide surface two can make the liquid splashed on the splash guard flow to the inner wall of the container, avoiding waste.

[0019] Furthermore, the splash guard and the guide plate are fixedly connected by a connector, a relief hole is provided in the connector for the liquid storage pipe to pass through up and down, a through hole six connected to the relief hole is provided on the side wall of the connector, and the connector is slidably assembled outside the liquid storage pipe.

[0020] The beneficial effect is that the connecting piece drives the guide plate and the splash guard to move up and down, and when the guide plate moves up to above the container, it is convenient to add concentrated sulfuric acid; after the concentrated sulfuric acid is added, the connecting piece moves down to the splash guard to be located in the container to close the container opening, thereby preventing acid mist from overflowing the container and ensuring production safety.

[0021] Furthermore, a bottom plate is provided at the bottom end of the movable tube, and the 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 fixed under the closing plate one, and an annular groove is provided on the bottom plate, which is connected to the cavity two and adapted to the convex plate one.

[0022] The beneficial effect is that the arrangement of the convex plate 1 and the convex plate 2 increases the sealing surface area when the piston and the closing plate 1 close the through hole 5, ensuring that more liquid is transported above the liquid surface and improving the utilization rate of the water cooling jacket.

[0023] Furthermore, the mounting frame is assembled on the rack by sliding up and down, the movable seat is assembled on the rack by sliding horizontally, the container and the water cooling jacket are placed on the movable seat, and the water cooling jacket is sheathed outside the container.

[0024] The beneficial effect is that the mounting frame moves upward to move the liquid holding tube out of the container, and the movable seat slides to push the container away from the mounting frame in the horizontal direction, making it easy to take out the container.

[0025] Furthermore, the moving tube is connected to linear actuator three, which is used to drive the moving tube to move up and down; the piston is connected to linear actuator four, which is used to drive the piston to move up and down; the closing plate two is connected to linear actuator five, which 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 holding tube.

[0026] The beneficial effect is that the linear actuator 3, the linear actuator 4 and the linear actuator 5 will not come into contact with the sulfuric acid solution during operation, thereby preventing the components of each linear actuator from being corroded and damaged, and improving the operation stability of the device.

[0027] The beneficial effects of the present invention are as follows: during use of the present invention, when the piston moves downward, the liquid below the piston is compressed, forcing the liquid to enter the container through the through hole 1; when the piston moves upward, a low-pressure area is formed below the piston, so that the liquid in the container flows back into the cavity 1 through the through hole 1, thereby promoting mixing between different areas; during the mixing process, the piston moves up and down rapidly to generate turbulence, accelerate the mixing process, and at the same time, the liquid does not splash, thereby 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 2 to transport the liquid in the moving tube upward and flow down along the inner wall of the container, and utilize the part of the inner wall of the container that is not in contact with the water-cooling jacket, thereby improving resource utilization and accelerating the cooling process; during the process of sulfuric acid dissolving in the solvent and cooling, the splash guard covers the container opening to reduce the escape of acid mist; at the same time, when the concentrated sulfuric acid dissolves in water and causes the liquid to heat up rapidly, resulting in a sudden increase in the internal pressure of the container, the pressure relief pipe can promptly relieve the pressure inside the container, and the sulfuric acid vapor and water vapor carried in the acid mist overflowing the pressure relief pipe are condensed into liquid by the condenser pipe, thereby reducing the risk of container rupture and avoiding the escape of acid mist, thereby preventing resource waste. Compared with pump transportation, the present invention is safer. The transportation of sulfuric acid solution is achieved through the mutual cooperation between the various linear actuators arranged outside the liquid holding pipe, without contact with the sulfuric acid solution. Even if too much concentrated sulfuric acid is accidentally added, causing the liquid to boil, the device can still operate normally and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 This is a schematic diagram of the split structure of the mounting frame and the rack;

[0030] Figure 3 Schematic diagram of the installation structure of the liquid holding pipe;

[0031] Figure 4Schematic diagram of the disassembled structure of the liquid holding tube, piston and linear actuator 4;

[0032] Figure 5 Schematic diagram of the split structure of the drainage component;

[0033] Figure 6 This is a schematic diagram of the split structure of the pressure relief pipe and the condenser pipe;

[0034] Figure 7 Schematic diagram of the installation structure of the mobile tube;

[0035] Figure 8 Schematic diagram of the assembly structure of the closing plate 1;

[0036] Figure 9 Schematic diagram of the split structure of the closing plate 2 and the moving tube;

[0037] Figure 10 Schematic diagram of the split structure of the water cooling jacket and the container;

[0038] Figure 11 Schematic diagram of the split structure when the closing plate 1 closes the through hole 5 and there is a distance between the piston and the bottom plate;

[0039] Figure 12 This is a schematic diagram of the structure when the piston closes the through hole 5 and there is a distance between the closing plate 1 and the bottom plate;

[0040] Figure 13 It is a structural schematic diagram when the closing plate 2 closes the through hole 4;

[0041] Figure 14 Schematic diagram of the structure when the closing plate 1 and the piston close the through hole 5 at the same time;

[0042] Figure 15 Schematic diagram of the structure of the device when the container is removed.

[0043] Description of reference numerals:

[0044] 1. Mounting frame; 2. Container; 3. Linear actuator 1; 4. Linear actuator 2; 5. Linear actuator 3; 6. Linear actuator 4; 7. Linear actuator 5; 8. Linear actuator 6; 9. Frame; 10. Liquid pipe; 11. Through hole 1; 12. Through hole 2; 13. Through hole 3; 14. Through hole 4; 15. Through hole 5; 16. Through hole 6; 17. Piston; 18. Mounting plate 1; 19. Mounting plate 2; 20. Mounting plate 3; 21. Connector Connecting rod one; 22. Connecting rod two; 23. Connecting rod three; 24. Closing plate one; 25. Closing plate two; 26. Guide plate; 27. Splash plate; 28. Connecting piece; 29. ​​Moving pipe; 30. Pressure relief pipe; 31. Condensing pipe; 32. Vertical pipe three; 33. V-shaped pipe; 34. Water-cooling pipe; 35. Drainage pipe; 36. Bottom plate; 37. Connecting rod four; 38. Water-cooling jacket; 39. Moving seat; 40. Protruding plate one; 41. Protruding plate two; 42. Slot. DETAILED DESCRIPTION

[0045] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0046] A stirring device for preparing sulfuric acid solution, such as Figure 1 As shown, it includes a mounting frame 1, a turbulence module assembled on the mounting frame 1 for stirring the liquid in the container 2, and a transfer module arranged on the mounting frame 1. The transfer module is used to cooperate with the turbulence module to transfer the liquid in the container 2 to above the liquid surface and flow down along the inner wall of the container 2.

[0047] The mounting frame 1 is assembled on the frame 9 by sliding up and down through the linear actuator 3. Figure 2 As shown, the frame 9 includes a fixed frame placed on the ground and a vertical pipe 2 fixedly assembled on the fixed frame, vertical pipes 1 are fixedly assembled on both sides of the bottom surface of the mounting frame 1, vertical pipe 1 is inserted into vertical pipe 2 and the outer circumference of vertical pipe 1 is in contact with the inner circumference of vertical pipe 2, linear actuator 1 3 extends up and down and is located in vertical pipe 1, the fixed end of linear actuator 1 3 is fixedly assembled on the frame 9, and the output end of linear actuator 1 3 is fixedly connected to the mounting frame 1.

[0048] The flow disturbance module includes a liquid holding tube 10, a piston 17, and a linear actuator 24 6 for driving the piston 17 to move up and down in the liquid holding tube 10. Figure 3 and Figure 4As shown, the liquid holding tube 10 is a circular tube with a cylindrical cavity 1 extending up and down and passing through it. A plurality of through holes 11 are provided at the lower part of the liquid holding tube 10, and a plurality of through holes 12 are provided on the liquid holding tube 10 above the through holes 11. Both the through holes 11 and the through holes 12 are connected to the cavity 1. The piston 17 is located in the liquid holding tube 10, and the outer peripheral surface of the piston 17 is in contact with the outer peripheral surface of the liquid holding tube 10. A mounting plate 2 19 is provided above the piston 17. The mounting plate 2 19 and the piston 17 are fixedly connected by a connecting rod 3 23 extending up and down. The fixed end of the linear actuator 4 6 is vertically fixedly assembled on the mounting frame 1, and the output end of the linear actuator 4 6 is fixedly connected to the mounting plate 2 19. The linear actuator 4 6 drives the piston 17 to move up and down, thereby driving the liquid in the liquid holding tube 10 to enter and exit the liquid holding tube 10 along the through holes 11 and the bottom opening of the liquid holding tube 10, stirring the liquid in the container 2 evenly while preventing the liquid from splashing.

[0049] The transfer module includes a drainage member, a movable tube 29, a closing plate 1 24 and a closing plate 25. The drainage member is assembled outside the liquid storage tube 10 for sliding up and down movement. The movable tube 29, the closing plate 1 24 and the closing plate 25 are all located inside the liquid storage tube 10 in the vertical direction.

[0050] like Figure 5 As shown, the guide member includes a guide plate 26, a splash plate 27 and a connecting member 28. The splash plate 27 is located above the guide plate 26. The top of the guide plate 26 has a guide surface 1, and the bottom of the splash plate 27 has a guide surface 2. The guide surface 1 and the guide surface 2 are both conical surfaces with gradually increasing diameters from top to bottom. The connecting member 28 is a circular ring plate that passes through the top and bottom. The connecting member 28 is fixedly assembled between the splash plate 27 and the guide plate 26. The inside of the connecting member 28 is provided with an avoidance hole for the liquid storage pipe 10 to pass through up and down. The side wall of the connecting member 28 is provided with a through hole 6 16 connected to the avoidance hole; the guide plate 26 is assembled on the outside of the liquid storage pipe 10 by sliding up and down through the linear actuator 24. Figure 3 The fixed end of the second linear actuator 4 is vertically fixedly assembled on the mounting frame 1, and the output end of the second linear actuator 4 is fixedly connected to the splash plate 27. When the second linear actuator 4 drives the drainage member to move to the through hole 6 16 and the through hole 2 12, the drainage member is located in the container 2, and the outer peripheral surface of the bottom end of the splash plate 27 is in contact with the inner wall of the container 2. There is a gap between the outer peripheral surface of the bottom end of the guide plate 26 and the inner wall of the container 2.

[0051] like Figure 5 and Figure 6As shown, the guide plate 26 is equipped with a pressure relief pipe 30, which includes a vertical pipe 32 and a V-shaped pipe 33. The vertical pipe 32 is vertically fixedly assembled on the guide plate 26 and communicates with the internal space of the container 2 below the guide plate 26. The splash plate 27 has a cleaning hole for the vertical pipe 32 to vertically pass through. The inner circumference of the cleaning hole is in contact with the outer circumference of the pressure relief pipe 30. One end of the V-shaped pipe 33 is fixedly assembled on the vertical pipe 32 and communicates with the vertical pipe 32. ;The condenser 31 includes a water-cooling tube 34 and a drainage tube 35. The water-cooling tube 34 is a hollow structure. A water inlet pipe and a water outlet pipe are provided on the water-cooling tube 34. The water-cooling tube 34 is sleeved on the other end of the V-shaped tube 33. There is a gap between the inner circumference of the water-cooling tube 34 and the outer circumference of the V-shaped tube 33. The drainage tube 35 is fixedly assembled on the water-cooling tube 34. The bottom end of the drainage tube 35 is fixedly assembled on the splash guard 27 and is connected to the space between the splash guard 27 and the drainage tube 35.

[0052] The moving tube 29 is located between the piston 17 and the second mounting plate 19, the piston 17 is located below the moving tube 29, and the second mounting plate 19 is located above the moving tube 29; Figure 7 As shown, a cavity 2 extending vertically is provided inside the movable tube 29, a through hole 4 14 communicating with the cavity 2 is provided on the side wall of the movable tube 29, a bottom plate 36 is fixedly provided on the bottom end surface of the movable tube 29, and a through hole 5 15 communicating with the cavity 2 and extending vertically is provided on the bottom plate 36, a mounting plate 18 is provided directly above the movable tube 29, and the mounting plate 18 and the movable tube 29 are fixedly connected by a connecting rod 1 21 extending vertically. The movable tube 29 is assembled to the mounting frame 1 by sliding up and down through the linear actuator 3 5, the fixed end of the linear actuator 3 5 being vertically fixedly assembled on the mounting frame 1, and the output end of the linear actuator 3 5 being fixedly connected to the mounting plate 18.

[0053] like Figure 8 As shown, the closing plate 1 24 has a through hole 3 13 that passes through from top to bottom. There is a gap between the through hole 3 13 and the through hole 5 15 in the horizontal direction. The closing plate 1 24 is fixedly connected to the mounting frame 1 through the connecting rod 2 22 extending up and down. When the linear actuator 3 5 drives the moving tube 29 to move upward until the bottom surface of the closing plate 1 24 is in contact with the top surface of the bottom plate 36, the closing plate 1 24 is located in the moving tube 29 and closes the through hole 5 15. At this time, the through hole 2 12 and the through hole 4 14 correspond to each other.

[0054] like Figure 9As shown, the closing plate 25 is an annular plate, and the outer peripheral surface of the closing plate 25 is in contact with the inner wall of the moving tube 29. A mounting plate 3 20 is provided above the closing plate 25, and the mounting plate 3 20 is located above the mounting plate 1 18. The closing plate 25 is fixedly connected to the mounting plate 3 20 via a connecting rod 4 37 extending up and down. The closing plate 25 is assembled on the mounting plate 1 18 by sliding up and down via a linear actuator 5 7. The fixed end of the linear actuator 5 7 is fixedly assembled on the mounting plate 1 18, and the output end of the linear actuator 5 7 is fixedly connected to the mounting plate 3 20. When the linear actuator 5 7 drives the closing plate 25 to move downward until it is in contact with the bottom plate 36, the closing plate 25 closes the through hole 4 14, and the through hole 4 14 and the cavity 2 are no longer connected.

[0055] In the present invention, Figure 1 and Figure 10 As shown, the water cooling jacket 38 is fixedly placed on the movable seat 39. The movable seat 39 is a horizontally placed rectangular plate structure. The inside of the water cooling jacket 38 is used to place the container 2. The side wall of the container 2 fits with the inner circumference of the water cooling jacket 38.

[0056] Linear actuator 1 3, linear actuator 2 4, linear actuator 3 5, linear actuator 4 6, and linear actuator 5 7 are electric push rods or hydraulic rods. Linear actuator 3 5, linear actuator 4 6, and linear actuator 5 7 are all located above the liquid storage tube 10. A PLC is assembled on the frame 9. Linear actuator 1 3, linear actuator 2 4, linear actuator 3 5, linear actuator 4 6, and linear actuator 5 7 are all electrically connected to the output end of the PLC.

[0057] The use of the present invention is as follows:

[0058] Add water to container 2 until the water level is lower than the height of the water-cooling jacket 38. Shorten linear actuator 1 (3), insert the lower end of liquid-holding tube 10 into the water, shorten linear actuator 2 (4), move the drainage element out of container 2 and position it above container 2. Slowly add concentrated sulfuric acid into the water along the inner wall of container 2.

[0059] ① Extend the linear actuator 2 4, and the drainage piece enters the container 2, refer to Figure 5 , until the through hole 6 16 and the through hole 2 12 correspond to each other and are connected to each other; at this time, the relationship between the closing plate 1 24, the piston 17 and the moving tube 29 is as follows Figure 11 As shown, the bottom surface of the closing plate 1 24 is in contact with the top surface of the bottom plate 36 , and the closing plate 1 24 closes the through hole 5 15 . The piston 17 is located below the movable tube 29 . The through hole 4 14 and the through hole 2 12 correspond to each other and are in communication with each other. The closing plate 2 25 moves upward, and the through hole 4 14 is in communication with the cavity 2 inside the movable tube 29 .

[0060] ② If Figure 12As shown, the linear actuator 3 5 is extended, the moving tube 29 and the closing plate 2 25 are moved downward synchronously, and the closing plate 1 24 is separated from the bottom plate 36 until the piston 17 is in contact with the bottom surface of the bottom plate 36. At this time, the piston 17 closes the bottom end opening of the through hole 5 15, and the liquid enters the moving tube 29 from the through hole 4 14;

[0061] ③ Such as Figure 13 As shown, the linear actuator 5 7 is shortened, the bottom surface of the closing plate 25 is fitted with the top surface of the bottom plate 36 , the closing plate 25 closes the through hole 4 14 , and the liquid remains in the moving tube 29 ;

[0062] ④ Such as Figure 14 As shown, the linear actuator 3 5 and the linear actuator 4 6 are shortened synchronously, and the moving tube 29 and the piston 17 are moved upward synchronously until the closing plate 1 24 contacts the top surface of the bottom plate 36 , and the closing plate 1 24 closes the top opening of the through hole 5 15 ;

[0063] In order to prevent 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 closing plate 24 and the top surface of the bottom plate 36, and to ensure that more liquid flows to the inner wall of the container 2 above the liquid level, a convex plate 2 is fixed above the piston 17. When the linear actuator 46 drives the piston 17 to move upward to contact the bottom plate 36, the convex plate 21 engages with the through hole 5 15 and closes the bottom opening of the through hole 5 15; an annular convex plate 1 is fixed below the closing plate 1 24, and the bottom plate 36 is provided with an annular groove 42 connected to the cavity 2. The through hole 5 is located in the groove 42 in the vertical direction. When the linear actuator 3 5 drives the moving tube 29 to move upward to the convex plate 1 40 and engages with the groove 42, the closing plate 1 24 contacts the top surface of the bottom plate 36 and closes the top opening of the through hole 5 15, thereby increasing the contact area between the piston 17 and the bottom plate 36, and between the closing plate 1 24 and the bottom plate 36, and improving the sealing performance;

[0064] ⑤ Shorten the linear actuator five 7, the closing plate two 25 moves upward, and the liquid in the mobile tube 29 flows along the through hole four 14, the through hole two 12 and the through hole six 16 into the cavity three formed by the guide plate 26, the splash plate 27 and the inner wall of the container 2. Due to the through hole three 13 and the through hole one 11, the interior of the container 2 is connected to the outside world. The liquid retained 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, thereby 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, driving the piston 17 to move downward, and the piston 17, the mobile tube 29 and the closing plate one 24 return to the original position. Figure 11 status.

[0065] Repeat steps ①-⑤ to stir and cool the liquid.

[0066] In order to remove the container 2 from the water-cooling jacket 38, a universal wheel is installed on the bottom surface of the movable seat 39. Two linear actuators 6 8 are installed horizontally on the frame 9. The fixed end of the linear actuator 6 8 is fixedly installed on the frame 9, and the output end of the linear actuator 5 7 is fixedly connected to the movable seat 39. Figure 15 As shown, after the sulfuric acid solution is prepared and cooled, linear actuator 1 3 extends, driving the liquid tube 10 to move out of the container 2, and linear actuator 6 8 extends, pushing the container 2 horizontally away from the mounting frame 1. At this time, the container 2 can be moved up and taken out.

Claims

1. A stirring device for preparing sulfuric acid solution, characterized in that: The device comprises a mounting frame, a flow disturbance module mounted on the mounting frame for stirring the liquid in the container, and a transfer module disposed on the mounting frame, the transfer module being used to cooperate with the flow disturbance module to transfer the liquid in the container to above the liquid surface and flow down the inner wall of the container; The spoiler module includes a liquid storage tube and a piston. A cavity 1 is provided in the liquid storage tube. A through hole 1 is provided on the liquid storage tube for allowing liquid in the container to enter and exit the cavity 1. The piston is slidably assembled in the cavity 1. A mounting plate 2 is provided above the piston and is fixedly connected to the mounting plate 2 by a connecting rod 3 extending vertically. The transfer module includes a guide plate, a movable tube, and a second closing plate. The guide plate is mounted on the outside of the liquid storage tube. The liquid storage tube above the guide plate is provided with a second through-hole communicating with the first cavity. The guide plate has a first guiding surface for guiding the liquid to flow from the second through-hole to the inner wall of the container. The movable tube is located above the piston. The movable tube is provided with a second cavity. A fourth through-hole communicating with the second cavity is provided on the side wall of the movable tube. A fifth through-hole communicating with the second cavity is provided at the bottom end of the movable tube. The movable tube is mounted on the mounting frame for sliding movement up and down. The second closing plate is mounted on the movable tube for sliding movement up and down. The second closing plate is used to close or open the fourth through-hole to control the flow between the second cavity and the space above the first guiding surface. The piston is used to close or open the fifth through-hole to control the flow between the first cavity and the second cavity. 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 cavity 1 and cavity 2. When the through hole 4 corresponds to the through hole 2, the closing plate 1 closes the through hole 5.

2. A stirring device for preparing sulfuric acid solution according to claim 1, characterized in that, The first closing plate is provided with a through hole three which passes through the first closing plate and the second closing plate, and a gap exists between the through hole three and the through hole five in the horizontal direction.

3. A stirring device for preparing sulfuric acid solution according to claim 2, 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 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.

4. A stirring device for preparing sulfuric acid solution according to claim 3, 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 guide surface one.

5. A stirring device for preparing sulfuric acid solution according to claim 4, characterized in that: A splash guard is provided above the guide plate, and the second through hole is located between the guide plate and the splash guard. The bottom surface of the splash guard has a second guide 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 is in contact with the inner wall of the container.

6. A stirring device for preparing sulfuric acid solution according to claim 5, characterized in that: The splash plate and the guide plate are fixedly connected by a connector, a avoidance hole for the liquid storage pipe to pass through is provided in the connector, a through hole 6 connected to the avoidance hole is provided on the side wall of the connector, and the connector is slidably assembled outside the liquid storage pipe.

7. A stirring device for preparing sulfuric acid solution according to claim 6, characterized in that: A bottom plate is provided at the bottom end of the moving tube, and the through hole five is located on the bottom plate. A convex plate two is provided on the top of the piston and is adapted to the through hole five. When the piston fits against the bottom surface of the bottom plate, the outer circumference of the convex plate two fits against the inner circumference of the through hole five. An annular convex plate one is fixed under the closing plate one, and an annular groove is provided on the bottom plate, which is connected to the cavity two and adapted to the convex plate one.

8. A stirring device for preparing sulfuric acid solution according to claim 7, characterized in that: The mounting frame is assembled on the rack by sliding up and down. The rack is assembled on the movable seat by sliding horizontally. The container and the water cooling jacket are placed on the movable seat. The water cooling jacket is mounted outside the container.

9. A stirring device for preparing sulfuric acid solution according to claim 8, characterized in that: The moving tube is connected to linear actuator three, which is used to drive the moving tube to move up and down; the piston is connected to linear actuator four, which is used to drive the piston to move up and down; the closing plate two is connected to linear actuator five, which 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 holding tube.

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