Purification equipment and method for processing high-purity sulfuric acid

Abstract

The invention discloses purification equipment and a purification method for high-purity sulfuric acid processing, and relates to the technical field of high-purity sulfuric acid processing. The purification equipment for high-purity sulfuric acid processing comprises a bottom plate and further comprises a moving plate, the moving plate is arranged at the top of the bottom plate, two supporting plates are arranged on the side wall of the moving plate, and a distillation tank is fixedly connected to the tops of the supporting plates. According to the purification equipment and method for processing the high-purity sulfuric acid, the electrified heating quantity of the electric heating rings can be conveniently adjusted and controlled according to the adding quantity of a sulfuric acid raw material in the distillation tank, heat waste is avoided while the heating effect is guaranteed, a shaking effect can be formed on the sulfuric acid raw material in the distillation tank during heating distillation, and the heating efficiency is improved. According to the device, the heating efficiency is higher, the heating effect is better, meanwhile, sulfuric acid steam and low-boiling-point impurity steam can be isolated and prevented from being mixed, the sulfuric acid steam and the low-boiling-point impurity steam can be extruded out respectively to be condensed and collected, and the efficiency and quality of sulfuric acid purification are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of high-purity sulfuric acid processing, and in particular to a purification device and method for high-purity sulfuric acid processing. Background Art

[0002] The purification method of high-purity sulfuric acid processing mainly includes the following steps: 1. Raw material preparation: A certain amount of sulfuric acid raw material needs to be prepared, usually low-purity sulfuric acid; 2. Pretreatment: The raw material is pretreated by physical or chemical methods to remove impurities and harmful substances; 3. Distillation: The pretreated sulfuric acid is distilled to separate components with different boiling points; 4. Condensation and collection: The distilled sulfuric acid is condensed to collect sulfuric acid products with higher purity; 5. Storage and transportation: The collected sulfuric acid products are stored in appropriate containers and transported safely. When separating, it is usually heated to 220-250°C first, and the low-boiling-point impurities are distilled and separated. Then, it is heated to 320-340°C and the temperature is maintained. The generated sulfuric acid vapor is condensed and collected to obtain high-purity sulfuric acid. What remains is the high-boiling-point impurities.

[0003] However, in the existing purification equipment and methods for processing high-purity sulfuric acid, when using the distillation treatment of the pretreated sulfuric acid, it is not convenient to adjust the heating area according to the amount of sulfuric acid raw material added to the distillation tank. At the same time, the heating efficiency is low and the effect is poor, which easily leads to heat waste. During the distillation separation, the efficiency of discharging the components with different boiling points is low and they are easily mixed together, affecting the efficiency and effect of purification. Summary of the Invention

[0004] The object of the present invention is to provide a purification device and method for high-purity sulfuric acid processing to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a purification device for processing high-purity sulfuric acid, comprising a bottom plate and: A movable plate, wherein the movable plate is arranged on the top of the bottom plate, and two supporting plates are provided on the side walls of the movable plate, the top of the support plate is fixedly connected to the distillation tank, and the side walls of the distillation tank are fixedly sleeved with a plurality of electric heating rings arranged in an array, the bottom of the distillation tank is fixedly inserted with a temperature sensor, the top of the distillation tank is fixedly connected to a feed valve, a first discharge valve and a second discharge valve, and the bottom of the distillation tank is fixedly connected to a third discharge valve, a first fan-shaped disk is slidably connected in the distillation tank, and a sliding groove is provided on the side wall of the first fan-shaped disk, a second fan-shaped disk is slidably connected in the sliding groove, and the bottom of the first fan-shaped disk is rotatably connected to the first connecting plate by a rotating rod, the bottom of the first connecting plate is fixedly connected to a plurality of wave-breaking plates, and the upper end of the rotating rod is arranged through the top of the distillation tank; a weighing mechanism for weighing the sulfuric acid raw material added to the distillation tank, the weighing mechanism being arranged between the movable plate and the bottom plate; A shaking mechanism for shaking the distillation tank back and forth, the shaking mechanism being arranged between the moving plate and the supporting plate; An energizing mechanism, for regulating and controlling the energization of the electric heating ring, wherein the energizing mechanism is arranged on the side wall of the electric heating ring; A moving mechanism for moving the second sector disk, the moving mechanism being arranged in the sliding groove; A lifting mechanism for lifting the first sector disk, the lifting mechanism being arranged on the top of the distillation tank; A driving mechanism for driving the rotating rod to rotate is arranged on the top of the distillation tank.

[0006] Preferably, the weighing mechanism includes two symmetrically arranged first sleeves fixedly connected to the top of the base plate, and a first set of rods is inserted in the first sleeve, the upper end of the first set of rods is fixed to the bottom of the movable plate, and the side wall of the first set of rods is sleeved with a first spring, the top of the base plate is fixedly connected to a U-shaped frame, and the top of the U-shaped frame is fixedly inserted with a distance sensor.

[0007] Preferably, the shaking mechanism includes an L-shaped plate rotatably connected to the side walls of each support plate through a first rotating shaft, and the side wall of one of the L-shaped plates is fixedly connected to a first motor, and the side walls of each of the L-shaped plates are fixedly connected to two symmetrically arranged second sets of rods, and the side walls of the second sets of rods are sleeved with a second sleeve, the other end of the second sleeve is fixed to the side wall of the movable plate, and the side wall of the second sleeve is sleeved with a second spring, one end of the first rotating shaft is fixedly connected to a rotating disk, the top of the rotating disk is fixedly connected to a hemispherical protrusion, and the top of the movable plate is fixedly connected to a pushing block.

[0008] Preferably, the power-on mechanism includes a first contact fixedly connected to the side wall of each electric heating ring, and the side wall of the distillation tank is fixedly connected to a fixed block, two symmetrically arranged first T-shaped guide rods are inserted into the bottom of the fixed block, and the lower end of the first T-shaped guide rod is fixedly connected to a moving block, the side wall of the moving block is fixedly connected to a conductive plate, and the side wall of the conductive plate is fixedly connected to a plurality of second contacts arranged in an array, the side wall of the first T-shaped guide rod is sleeved with a third spring, and the movement of the moving block is pushed by a pushing mechanism.

[0009] Preferably, the pushing mechanism includes a first connecting block fixedly connected to a side wall of the moving block, and the top of the bottom plate is connected to a moving frame via a reset mechanism, and the moving frame includes a first inclined surface and a second inclined surface.

[0010] Preferably, the reset mechanism includes a support block fixedly connected to the top of the base plate, and two symmetrically arranged second T-shaped guide rods are inserted into the side wall of the support block, one end of the second T-shaped guide rod is fixedly connected to the second connecting block, the second connecting block is fixed to the side wall of the movable frame, and the side wall of the second T-shaped guide rod is sleeved with a fourth spring.

[0011] Preferably, the moving mechanism includes two symmetrically arranged third sleeves fixedly connected to the side walls of the second sector disk, and a third rod is inserted into the third sleeve, the other end of the third rod is fixed to the side wall of the sliding groove, and the side wall of the third rod is sleeved with a fifth spring, the side wall of the sliding groove is fixedly connected to an electromagnet, and the side wall of the second sector disk is fixedly connected to an iron block.

[0012] Preferably, the lifting mechanism includes a U-shaped plate fixedly connected to the top of the distillation tank, and the top of the U-shaped plate is fixedly connected to a fourth rod, the side wall of the fourth rod is sleeved with a fourth sleeve, and the lower end of the fourth sleeve passes through the top of the distillation tank and is fixed to the top of the first fan-shaped disk, the top of the U-shaped plate is fixedly connected to a second motor, and the output end of the second motor is fixedly connected to a threaded rod, and the side wall of the threaded rod is threadedly connected to a threaded tube.

[0013] Preferably, the driving mechanism includes a second connecting plate fixedly connected to the side wall of the fourth sleeve, and the side wall of the second connecting plate is fixedly connected to an L-shaped block, the upper end of the rotating rod passes through the top of the L-shaped block and is fixedly connected to the driven bevel gear, and the side wall of the L-shaped block is rotatably connected to the active bevel gear through the second rotating shaft, the side wall of the second rotating shaft is fixedly connected to a plurality of array-arranged protrusions, and the top of the distillation tank is fixedly connected to a mounting plate, the side wall of the mounting plate is provided with a slide groove, and a slide plate is slidably connected in the slide groove, a sixth spring is fixedly connected between the slide plate and the slide groove, the side wall of the slide plate is fixedly connected to a plurality of array-arranged triangular blocks, and the triangular blocks include a limiting surface and a third inclined surface.

[0014] A purification method for high-purity sulfuric acid processing, using the purification equipment for high-purity sulfuric acid processing as described above, comprises the following steps: S1: During purification, sulfuric acid raw material is added to the distillation tank through the feed valve. At the same time, as the amount of sulfuric acid raw material in the distillation tank increases, its mass gradually increases, thereby pushing the distillation tank and the movable plate downward, and the first spring is compressed. At this time, the distance sensor detects the distance of the movable plate to determine the compression amount of the first spring, and then the mass of the added sulfuric acid raw material is known, thereby facilitating the control of the amount of sulfuric acid raw material added; S2: When the movable plate moves downward, it abuts against the first inclined surface, thereby pushing the movable frame to move in the direction close to the first connecting block. At the same time, the fourth spring is compressed, and the first connecting block abuts against the second inclined surface, thereby pushing the movable block and the conductive plate to move upward. The third spring is compressed, so that the second contact contacts the first contacts on the side walls of each electric heating ring from bottom to top, thereby connecting the circuit for controlling the electric heating ring, and then heating the distillation tank. Moreover, the greater the downward stroke of the movable plate, that is, the more sulfuric acid raw materials in the distillation tank, the higher the liquid level. At this time, the more the first contacts are connected to the second contacts, that is, the more electric heating rings are heated. This makes it easy to adjust and control the number of electric heating rings that are heated according to the amount of sulfuric acid raw materials added to the distillation tank, thereby ensuring the heating effect while avoiding heat waste. S3: When heating, the first motor is started to reciprocate forward and reverse at a certain angle. The rotation of the first motor drives the first rotating shaft and the support plate to swing, thereby driving the distillation tank to swing back and forth. At the same time, when the first rotating shaft rotates, the rotating disk is driven to rotate synchronously. When the hemispherical protrusion abuts against the side wall of the pushing block, the rotating disk is pushed to move away from the pushing block, and the L-shaped plate, the support plate and the distillation tank are driven to move synchronously. At the same time, the second spring is deformed. When the hemispherical protrusion passes over the pushing block, the distillation tank can move and reset under the action of the second spring, thereby enabling the distillation tank to reciprocate, which can form a shaking effect on the sulfuric acid raw material in the distillation tank, thereby making the heating efficiency higher and the effect better; S4: When the temperature of the sulfuric acid raw material in the distillation tank rises to 220-250°C, the second motor is started. The rotation of the second motor drives the rotation of the threaded rod, so that the fourth sleeve and the threaded tube move downward, and drives the first sector disk and the second sector disk to move downward synchronously. At the same time, the first discharge valve is opened. At this time, low-boiling point impurities are discharged through the first discharge valve for condensation and collection. After the distillation tank is heated to 320-340°C and the temperature is maintained, the first sector disk is driven to continue to move downward by the lifting mechanism, and its bottom is in contact with the liquid surface of the sulfuric acid raw material. In addition, the electromagnet is powered off. At this time, the second sector disk can be moved along the fifth spring under the action of the fifth spring. The sliding groove extends outward to form a complete circular disc with the first sector disc and matches the inner wall of the distillation tank. Then, the first sector disc and the second sector disc are moved upward by the lifting mechanism. At this time, the steam of low-boiling-point impurities above can be pushed upward and completely discharged through the first discharge valve, which can improve the efficiency and effect of discharge. At the same time, a vacuum state can be formed between the first sector disc, the second sector disc and the liquid surface to ensure the efficiency and effect of the distillation of sulfuric acid vapor. At this time, the sulfuric acid vapor is below the first sector disc and the second sector disc, thereby isolating the sulfuric acid vapor from the low-boiling-point impurity vapor to avoid mixing, thereby ensuring the quality of sulfuric acid purification. S5: When the first sector disc and the second sector disc move to the top of the distillation tank, the low-boiling-point impurity vapor is completely discharged through the first discharge valve. Then, the first discharge valve is closed, the second discharge valve is opened, and the electromagnet is energized. After the electromagnet is energized, the second sector disc is retracted into the sliding groove. At the same time, the fifth spring is compressed. Then, the first sector disc and the second sector disc are moved downward by the lifting mechanism. At this time, the sulfuric acid vapor can be discharged through the second discharge valve for condensation and collection. When the first sector disc is in contact with the liquid surface, the second sector disc is extended again, and the first sector disc and the second sector disc are driven to move upward by the lifting mechanism. This reciprocating process can generate a negative pressure state above the liquid surface during purification, and the generated sulfuric acid vapor can be squeezed out through the second discharge valve, thereby improving the extraction efficiency and effect. The remaining high-boiling-point impurities are discharged through the third discharge valve. S6: When the fourth sleeve, the threaded tube, and the first sector-shaped disc move downward, the first connecting plate and the wave-breaking plate are driven to move downward synchronously. At the same time, the second connecting plate and the L-shaped block are driven to move synchronously. At this time, the protrusion abuts against the third inclined surface, squeezing it into the chute. At the same time, the sixth spring is compressed. At this time, the second rotating shaft does not rotate, that is, it does not drive the rotating rod and the first connecting plate to rotate. When the wave-breaking plate is inserted into the sulfuric acid raw material, it can play a wave-proof effect, reduce liquid level fluctuations, and ensure that the first sector-shaped disc fits the top of the liquid surface. S7: When the first sector disk and the second sector disk move upward, the triangular block can be extended under the action of the sixth spring, and its protrusion is against the limit surface, thereby pushing the second rotating shaft to rotate. The rotation of the second rotating shaft rotates the active bevel gear, and the rotation of the active bevel gear drives the driven bevel gear and the rotating rod to rotate, and then drives the rotation of the first connecting plate and the wave-breaking plate, so as to have a certain stirring effect on the sulfuric acid raw material, making the heating efficiency higher and the effect better, and when the wave-breaking plate is separated from the sulfuric acid raw material, the sulfuric acid raw material can be prevented from adhering to its surface through rotation, thereby ensuring the efficiency and effect of sulfuric acid purification.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This purification equipment and method for high-purity sulfuric acid processing is convenient for adjusting and controlling the amount of electric heating rings powered on for heating according to the amount of sulfuric acid raw material added to the distillation tank by providing a weighing mechanism, an energizing mechanism, a shaking mechanism, and a moving mechanism, thereby ensuring the heating effect while avoiding heat waste. During heating distillation, a shaking effect can be formed on the sulfuric acid raw material in the distillation tank, making the heating more efficient and effective. At the same time, sulfuric acid vapor can be isolated from low-boiling-point impurity vapor to avoid mixing, and the impurities can be squeezed out separately for condensation and collection, thereby ensuring the efficiency and quality of sulfuric acid purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the lifting mechanism in the present invention; Figure 3 It is a partial cross-sectional structural schematic diagram of the distillation tank in the present invention; Figure 4 It is a partial cross-sectional structural schematic diagram of the first sector disk in the present invention; Figure 5 for Figure 1 Schematic diagram of the enlarged structure at A in the middle; Figure 6 for Figure 2 Schematic diagram of the enlarged structure at B in the middle; Figure 7 for Figure 2 Schematic diagram of the enlarged structure at C in the middle; Figure 8 for Figure 3 Schematic diagram of the enlarged structure at D in the middle; Figure 9 for Figure 4 Schematic diagram of the enlarged structure at E in the middle; Figure 10 for Figure 5 Schematic diagram of the enlarged structure at F in the middle; Figure 11 for Figure 7 Schematic diagram of the enlarged structure at G in the middle.

[0017] Figure: 1, bottom plate; 2, weighing mechanism; 201, first sleeve; 202, first set of rods; 203, first spring; 204, U-shaped frame; 205, distance sensor; 3, shaking mechanism; 301, second sleeve; 302, second set of rods; 303, second spring; 304, L-shaped plate; 305, first rotating shaft; 306, first motor; 307, rotating disk; 308, hemispherical protrusion; 309, pushing block; 4, power supply mechanism; 401, first contact; 402 , moving block; 403, conductive plate; 404, second contact; 405, fixed block; 406, first T-shaped guide rod; 407, third spring; 5, wave-breaking plate; 6, pushing mechanism; 601, first connecting block; 602, moving frame; 603, first inclined plane; 604, second inclined plane; 7, reset mechanism; 701, supporting block; 702, second T-shaped guide rod; 703, second connecting block; 704, fourth spring; 8, moving mechanism; 801, third set of rods; 802, first Three sleeves; 803, fifth spring; 804, electromagnet; 805, iron block; 9, lifting mechanism; 901, U-shaped plate; 902, fourth rod; 903, fourth sleeve; 904, threaded pipe; 905, threaded rod; 906, second motor; 10, driving mechanism; 1001, second connecting plate; 1002, L-shaped block; 1003, driven bevel gear; 1004, second rotating shaft; 1005, driving bevel gear; 1006, bump; 1007, mounting plate; 10 08. Slide groove; 1009. Sixth spring; 1010. Slide plate; 1011. Triangular block; 1012. Limiting surface; 1013. Third inclined surface; 11. Distillation tank; 12. Electric heating ring; 13. Feed valve; 14. First discharge valve; 15. Second discharge valve; 16. Third discharge valve; 17. First sector disk; 18. Slide groove; 19. Second sector disk; 20. Moving plate; 21. Support plate; 22. Rotating rod; 23. First connecting plate; 24. Temperature sensor. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1-11 The present invention provides a technical solution: a purification device for high-purity sulfuric acid processing, comprising a bottom plate 1, and further comprising: The movable plate 20 is arranged on the top of the bottom plate 1, and the side wall of the movable plate 20 is provided with two supporting plates 21, the top of the supporting plate 21 is fixedly connected to the distillation tank 11, and the side wall of the distillation tank 11 is fixedly sleeved with a plurality of electric heating rings 12 arranged in an array, the bottom of the distillation tank 11 is fixedly inserted with a temperature sensor 24, the top of the distillation tank 11 is fixedly connected to the feed valve 13, the first discharge valve 14 and the second discharge valve 15, and the bottom of the distillation tank 11 is fixedly connected to the third discharge valve 16, a first fan-shaped disc 17 is slidably connected in the distillation tank 11, and a sliding groove 18 is opened on the side wall of the first fan-shaped disc 17, a second fan-shaped disc 19 is slidably connected in the sliding groove 18, and the bottom of the first fan-shaped disc 17 is rotatably connected to the first connecting plate 23 through a rotating rod 22, the bottom of the first connecting plate 23 is fixedly connected to a plurality of wave-breaking plates 5, and the upper end of the rotating rod 22 is arranged through the top of the distillation tank 11; A weighing mechanism 2 for weighing the sulfuric acid raw material added to the distillation tank 11 is provided between the movable plate 20 and the bottom plate 1; A shaking mechanism 3 for reciprocatingly shaking the distillation tank 11 is provided between the moving plate 20 and the support plate 21; The power supply mechanism 4 is used to adjust and control the power supply of the electric heating ring 12. The power supply mechanism 4 is arranged on the side wall of the electric heating ring 12; A moving mechanism 8 for moving the second sector disk 19 is disposed in the sliding groove 18; A lifting mechanism 9 for lifting the first sector disk 17 is provided on the top of the distillation tank 11; The driving mechanism 10 is used to drive the rotating rod 22 to rotate. The driving mechanism 10 is set on the top of the distillation tank 11, which is convenient for adjusting and controlling the amount of heating of the electric heating ring 12 according to the amount of sulfuric acid raw material added to the distillation tank 11, ensuring the heating effect while avoiding heat waste. When heating distillation is performed, it can form a shaking effect on the sulfuric acid raw material in the distillation tank 11, making the heating efficiency higher and the effect better. At the same time, it can isolate the sulfuric acid vapor from the low-boiling point impurity vapor to avoid mixing, and can squeeze them out separately for condensation and collection, thereby ensuring the efficiency and quality of sulfuric acid purification.

[0020] The weighing mechanism 2 includes two symmetrically arranged first sleeves 201 fixedly connected to the top of the base plate 1, and a first sleeve rod 202 is inserted into the first sleeve 201. The upper end of the first sleeve rod 202 is fixed to the bottom of the movable plate 20, and the side wall of the first sleeve rod 202 is sleeved with a first spring 203. A U-shaped frame 204 is fixedly connected to the top of the base plate 1, and a distance sensor 205 is fixedly inserted at the top of the U-shaped frame 204. During purification, sulfuric acid raw material is added to the distillation tank 11 through the feed valve 13. At the same time, as the sulfuric acid raw material in the distillation tank 11 increases, its mass gradually increases, thereby pushing the distillation tank 11 and the movable plate 20 to move downward, and the first spring 203 is compressed. At this time, the distance to the movable plate 20 is detected by the distance sensor 205 to determine the compression amount of the first spring 203, and then the mass of the added sulfuric acid raw material is known, thereby facilitating the control of the amount of sulfuric acid raw material added.

[0021] The rocking mechanism 3 includes an L-shaped plate 304 rotatably connected to the side wall of each support plate 21 through a first rotating shaft 305, and a first motor 306 is fixedly connected to the side wall of one of the L-shaped plates 304, and the side wall of each L-shaped plate 304 is fixedly connected to two symmetrically arranged second rods 302, and the side wall of the second rod 302 is sleeved with a second sleeve 301, the other end of the second sleeve 301 is fixed to the side wall of the movable plate 20, and the side wall of the second sleeve 301 is sleeved with a second spring 303, one end of the first rotating shaft 305 is fixedly connected to a rotating disk 307, the top of the rotating disk 307 is fixedly connected to a hemispherical protrusion 308, and the top of the movable plate 20 is fixedly connected to a pushing block 309. When heating is performed, the first motor 306 is started to reciprocate forward and reverse at a certain angle, and the first motor The rotation of the machine 306 drives the first rotating shaft 305 and the support plate 21 to swing, thereby driving the distillation tank 11 to swing back and forth. At the same time, when the first rotating shaft 305 rotates, it drives the rotating disk 307 to rotate synchronously. When the hemispherical protrusion 308 abuts against the side wall of the pushing block 309, it pushes the rotating disk 307 to move away from the pushing block 309, and drives the L-shaped plate 304, the support plate 21 and the distillation tank 11 to move synchronously. At the same time, the second spring 303 is deformed. When the hemispherical protrusion 308 passes over the pushing block 309, the distillation tank 11 can move and reset under the action of the second spring 303, so that the distillation tank 11 can move back and forth, which can form a shaking effect on the sulfuric acid raw material in the distillation tank 11, making the heating efficiency higher and the effect better.

[0022] The power supply mechanism 4 includes a first contact 401 fixedly connected to the side wall of each electric heating ring 12, and a fixed block 405 is fixedly connected to the side wall of the distillation tank 11, two symmetrically arranged first T-shaped guide rods 406 are inserted at the bottom of the fixed block 405, and the lower end of the first T-shaped guide rod 406 is fixedly connected to the moving block 402, the side wall of the moving block 402 is fixedly connected to the conductive plate 403, and the side wall of the conductive plate 403 is fixedly connected to a plurality of second contacts 404 arranged in an array, the side wall of the first T-shaped guide rod 406 is sleeved with a third spring 407, and the movement of the moving block 402 is pushed by the pushing mechanism 6. When the moving plate 20 moves downward, the moving block 402 and The conductive plate 403 moves upward, and the third spring 407 is compressed, so that the second contact 404 contacts the first contact 401 on the side wall of each electric heating ring 12 from bottom to top, thereby connecting the circuit that controls the electric heating ring 12, and then heating the distillation tank 11. In addition, the greater the downward stroke of the movable plate 20, that is, the more sulfuric acid raw materials in the distillation tank 11, the higher the liquid level. At this time, the more first contacts 401 are connected to the second contacts 404, that is, the more electric heating rings 12 are heated, so that it is convenient to adjust and control the number of electric heating rings 12 that are powered on and heated according to the amount of sulfuric acid raw materials added to the distillation tank 11, thereby ensuring the heating effect while avoiding heat waste.

[0023] The pushing mechanism 6 includes a first connecting block 601 fixedly connected to the side wall of the moving block 402, and the top of the base plate 1 is connected to a moving frame 602 through a reset mechanism 7. The moving frame 602 includes a first inclined surface 603 and a second inclined surface 604. When the moving plate 20 moves downward, it abuts against the first inclined surface 603, thereby pushing the moving frame 602 to move toward the direction close to the first connecting block 601, and making the first connecting block 601 abut against the second inclined surface 604, thereby pushing the moving block 402 and the conductive plate 403 to move upward, and the third spring 407 is compressed.

[0024] The reset mechanism 7 includes a support block 701 fixedly connected to the top of the base plate 1, and two symmetrically arranged second T-shaped guide rods 702 are inserted into the side wall of the support block 701, one end of the second T-shaped guide rod 702 is fixedly connected to the second connecting block 703, the second connecting block 703 is fixed to the side wall of the movable frame 602, and the side wall of the second T-shaped guide rod 702 is sleeved with a fourth spring 704, which guides and resets the movement of the movable frame 602.

[0025] The moving mechanism 8 includes two symmetrically arranged third sleeves 802 fixedly connected to the side walls of the second sector disk 19, and a third rod 801 is inserted into the third sleeve 802, the other end of the third rod 801 is fixed to the side wall of the sliding groove 18, and the side wall of the third rod 801 is sleeved with a fifth spring 803, the side wall of the sliding groove 18 is fixedly connected with an electromagnet 804, and the side wall of the second sector disk 19 is fixedly connected with an iron block 805. When the bottom of the first sector disk 17 is in contact with the liquid surface of the sulfuric acid raw material, the electromagnet 804 is powered off. At this time, the second sector disk 19 can extend outward along the sliding groove 18 under the action of the fifth spring 803, forming a complete circular disk with the first sector disk 17 and matching the inner wall of the distillation tank 11.

[0026] The lifting mechanism 9 includes a U-shaped plate 901 fixedly connected to the top of the distillation tank 11, and the top of the U-shaped plate 901 is fixedly connected to a fourth rod 902, the side wall of the fourth rod 902 is sleeved with a fourth sleeve 903, and the lower end of the fourth sleeve 903 passes through the top of the distillation tank 11 and is fixed to the top of the first fan-shaped disk 17, the top of the U-shaped plate 901 is fixedly connected to a second motor 906, and the output end of the second motor 906 is fixedly connected to a threaded rod 905, and the side wall of the threaded rod 905 is threadedly connected to a threaded tube 904, the second motor 906 is started, and the rotation of the second motor 906 drives the rotation of the threaded rod 905, so that the fourth sleeve 903 and the threaded tube 904 are lifted and lowered, thereby driving the first fan-shaped disk 17 and the second fan-shaped disk 19 to lift and lower synchronously.

[0027] The driving mechanism 10 includes a second connecting plate 1001 fixedly connected to the side wall of the fourth sleeve 903, and the side wall of the second connecting plate 1001 is fixedly connected to an L-shaped block 1002, the upper end of the rotating rod 22 passes through the top of the L-shaped block 1002 and is fixedly connected to a driven bevel gear 1003, and the side wall of the L-shaped block 1002 is rotatably connected to a driving bevel gear 1005 through a second rotating shaft 1004, the side wall of the second rotating shaft 1004 is fixedly connected to a plurality of array-arranged protrusions 1006, and the top of the distillation tank 11 is fixedly connected to a mounting plate 1007, and the side of the mounting plate 1007 is fixedly connected to the top of the distillation tank 11. The wall is provided with a slide groove 1008, and a slide plate 1010 is slidably connected in the slide groove 1008, a sixth spring 1009 is fixedly connected between the slide plate 1010 and the slide groove 1008, and a plurality of triangular blocks 1011 arranged in an array are fixedly connected to the side wall of the slide plate 1010, and the triangular block 1011 includes a limiting surface 1012 and a third inclined surface 1013. When the fourth sleeve 903, the threaded tube 904 and the first sector disk 17 move downward, the first connecting plate 23 and the anti-wave plate 5 are driven to move downward synchronously, and at the same time, the second connecting plate 1001 and the L-shaped block 1002 are driven to move downward. When the first and second sector discs 17 and 19 move upward, the triangular block 1011 can be extended under the action of the sixth spring 1009, and the triangular block 1011 can be moved upward to the top of the liquid surface. The protrusion 1006 abuts against the limiting surface 1012, thereby pushing the second rotating shaft 1004 to rotate. The rotation of the second rotating shaft 1004 rotates the active bevel gear 1005, and the rotation of the active bevel gear 1005 drives the driven bevel gear 1003 and the rotating rod 22 to rotate, and then drives the rotation of the first connecting plate 23 and the wave-breaking plate 5, so as to have a certain stirring effect on the sulfuric acid raw material, making the heating efficiency higher and the effect better. Moreover, when the wave-breaking plate 5 is separated from the sulfuric acid raw material, the sulfuric acid raw material can be prevented from adhering to its surface through rotation, thereby ensuring the efficiency and effect of sulfuric acid purification.

[0028] A purification method for high-purity sulfuric acid processing, using the above-mentioned purification equipment for high-purity sulfuric acid processing, comprises the following steps: S1: During purification, sulfuric acid raw material is added to the distillation tank 11 through the feed valve 13. At the same time, as the amount of sulfuric acid raw material in the distillation tank 11 increases, its mass gradually increases, thereby pushing the distillation tank 11 and the movable plate 20 to move downward, and the first spring 203 is compressed. At this time, the distance sensor 205 detects the distance of the movable plate 20 to determine the compression amount of the first spring 203, and then the mass of the added sulfuric acid raw material is known, thereby facilitating the control of the amount of sulfuric acid raw material added; S2: When the movable plate 20 moves downward, it abuts against the first inclined surface 603, thereby pushing the movable frame 602 to move in the direction close to the first connecting block 601. At the same time, the fourth spring 704 is compressed, and the first connecting block 601 abuts against the second inclined surface 604, thereby pushing the movable block 402 and the conductive plate 403 to move upward. The third spring 407 is compressed, so that the second contact 404 contacts the first contact 401 on the side wall of each electric heating ring 12 from bottom to top, thereby connecting the circuit for controlling the electric heating ring 12, and then heating the distillation tank 11. Moreover, the greater the downward stroke of the movable plate 20, that is, the more sulfuric acid raw material in the distillation tank 11, and the higher its liquid level, at this time, the more the first contact 401 is connected to the second contact 404, that is, the more electric heating rings 12 are heated, so that it is convenient to adjust and control the number of electric heating rings 12 that are energized and heated according to the amount of sulfuric acid raw material added to the distillation tank 11, thereby ensuring the heating effect while avoiding heat waste; S3: When heating, the first motor 306 is started to reciprocate forward and reverse at a certain angle. The rotation of the first motor 306 drives the first rotating shaft 305 and the support plate 21 to swing, thereby driving the distillation tank 11 to swing back and forth. At the same time, when the first rotating shaft 305 rotates, the rotating disk 307 is driven to rotate synchronously. When the hemispherical protrusion 308 abuts against the side wall of the pushing block 309, the rotating disk 307 is pushed to move away from the pushing block 309, and the L-shaped plate 304, the support plate 21 and the distillation tank 11 are driven to move synchronously. At the same time, the second spring 303 is deformed. When the hemispherical protrusion 308 passes over the pushing block 309, the distillation tank 11 can be moved and reset under the action of the second spring 303, thereby enabling the distillation tank 11 to reciprocate, forming a shaking effect on the sulfuric acid raw material in the distillation tank 11, making the heating efficiency higher and the effect better. S4: When the sulfuric acid raw material in the distillation tank 11 is heated to 220-250°C, the second motor 906 is started. The rotation of the second motor 906 drives the rotation of the threaded rod 905, so that the fourth sleeve 903 and the threaded tube 904 move downward, and drive the first fan-shaped disc 17 and the second fan-shaped disc 19 to move downward synchronously. At the same time, the first discharge valve 14 is opened. At this time, low-boiling-point impurities are discharged through the first discharge valve 14 for condensation and collection. After the distillation tank 11 is heated to 320-340°C and the temperature is maintained, the first fan-shaped disc 17 is driven to continue to move downward by the lifting mechanism 9, and its bottom is in contact with the liquid surface of the sulfuric acid raw material. In addition, the electromagnet 804 is powered off. At this time, the second fan-shaped disc 19 can be moved downward by the fifth spring. Under the action of 803, it extends outward along the sliding groove 18, forms a complete circular disc with the first sector disc 17 and matches the inner wall of the distillation tank 11, and then, the first sector disc 17 and the second sector disc 19 are moved upward by the lifting mechanism 9. At this time, the steam of the low-boiling-point impurities above can be pushed upward and completely discharged through the first discharge valve 14, which can improve the efficiency and effect of the discharge. At the same time, a vacuum state can be formed between the first sector disc 17, the second sector disc 19 and the liquid surface to ensure the efficiency and effect of the distillation of sulfuric acid vapor. At this time, the sulfuric acid vapor is below the first sector disc 17 and the second sector disc 19, so that the sulfuric acid vapor can be isolated from the low-boiling-point impurity vapor to avoid mixing, thereby ensuring the quality of sulfuric acid purification; S5: When the first sector disc 17 and the second sector disc 19 move to the top of the distillation tank 11, the low-boiling-point impurity vapor is completely discharged through the first discharge valve 14. Then, the first discharge valve 14 is closed, the second discharge valve 15 is opened, and the electromagnet 804 is energized. After the electromagnet 804 is energized, the second sector disc 19 is retracted into the sliding groove 18. At the same time, the fifth spring 803 is compressed. Then, the first sector disc 17 and the second sector disc 19 are moved downward by the lifting mechanism 9. At this time, the sulfuric acid vapor can be discharged through the second discharge valve 15 for condensation and collection. When the first sector disc 17 is in contact with the liquid surface, the second sector disc 19 is extended again, and the first sector disc 17 and the second sector disc 19 are driven to move upward by the lifting mechanism 9. This reciprocating process can generate a negative pressure state above the liquid surface during purification, and the generated sulfuric acid vapor can be squeezed out through the second discharge valve 15, thereby improving the extraction efficiency and effect. The remaining high-boiling-point impurities are discharged through the third discharge valve 16. S6: Moreover, when the fourth sleeve 903, the threaded tube 904 and the first sector-shaped disc 17 move downward, the first connecting plate 23 and the wave-breaking plate 5 are driven to move downward synchronously. At the same time, the second connecting plate 1001 and the L-shaped block 1002 are driven to move synchronously. At this time, the protrusion 1006 abuts against the third inclined surface 1013, squeezing it into the chute 1008. At the same time, the sixth spring 1009 is compressed. At this time, the second rotating shaft 1004 does not rotate, that is, it does not drive the rotating rod 22 and the first connecting plate 23 to rotate. When the wave-breaking plate 5 is inserted into the sulfuric acid raw material, it can play a wave-proof effect, reduce the liquid level fluctuation, and ensure the fit between the first sector-shaped disc 17 and the top of the liquid surface. S7: When the first sector disk 17 and the second sector disk 19 move upward, the triangular block 1011 can be extended under the action of the sixth spring 1009, and its protrusion 1006 is abutted against the limit surface 1012, thereby pushing the second rotating shaft 1004 to rotate. The rotation of the second rotating shaft 1004 rotates the active bevel gear 1005, and the rotation of the active bevel gear 1005 drives the driven bevel gear 1003 and the rotating rod 22 to rotate, and then drives the rotation of the first connecting plate 23 and the wave-breaking plate 5, so as to have a certain stirring effect on the sulfuric acid raw material, making the heating efficiency higher and the effect better, and when the wave-breaking plate 5 is separated from the sulfuric acid raw material, the sulfuric acid raw material can be prevented from adhering to its surface through rotation, thereby ensuring the efficiency and effect of sulfuric acid purification.

Claims

1. A purification device for high-purity sulfuric acid processing, comprising a bottom plate (1), characterized in that: Also includes: A movable plate (20), the movable plate (20) being arranged on the top of the bottom plate (1), and the side wall of the movable plate (20) being provided with two support plates (21), the top of the support plate (21) being fixedly connected to a distillation tank (11), and the side wall of the distillation tank (11) being fixedly sleeved with a plurality of electric heating rings (12) arranged in an array, the bottom of the distillation tank (11) being fixedly inserted with a temperature sensor (24), the top of the distillation tank (11) being fixedly connected to a feed valve (13), a first discharge valve (14) and a second discharge valve (15), and the distillation tank A third discharge valve (16) is fixedly connected to the bottom of the distillation tank (11), a first fan-shaped disc (17) is slidably connected to the inside of the distillation tank (11), and a sliding groove (18) is provided on the side wall of the first fan-shaped disc (17), a second fan-shaped disc (19) is slidably connected to the inside of the sliding groove (18), and the bottom of the first fan-shaped disc (17) is rotatably connected to a first connecting plate (23) via a rotating rod (22), a plurality of wave-breaking plates (5) are fixedly connected to the bottom of the first connecting plate (23), and the upper end of the rotating rod (22) passes through the top of the distillation tank (11); a weighing mechanism (2), used for weighing the sulfuric acid raw material added into the distillation tank (11); the weighing mechanism (2) is arranged between the moving plate (20) and the bottom plate (1); A shaking mechanism (3), used for shaking the distillation tank (11) back and forth, the shaking mechanism (3) being arranged between the moving plate (20) and the supporting plate (21); An energizing mechanism (4), used for regulating and controlling the energizing of the electric heating ring (12), the energizing mechanism (4) being arranged on a side wall of the electric heating ring (12); a moving mechanism (8), the moving mechanism (8) being used to move the second sector disk (19), the moving mechanism (8) being arranged in the sliding groove (18); A lifting mechanism (9), the lifting mechanism (9) being used to lift and lower the first sector disk (17), the lifting mechanism (9) being arranged on the top of the distillation tank (11); A driving mechanism (10), which is used to drive the rotating rod (22) to rotate, and is arranged on the top of the distillation tank (11).

2. The purification equipment for high-purity sulfuric acid processing according to claim 1, characterized in that: The weighing mechanism (2) comprises two symmetrically arranged first sleeves (201) fixedly connected to the top of the base plate (1), and a first set of rods (202) are inserted into the first sleeves (201), the upper ends of the first set of rods (202) are fixed to the bottom of the movable plate (20), and the side walls of the first set of rods (202) are sleeved with first springs (203), the top of the base plate (1) is fixedly connected to a U-shaped frame (204), and a distance sensor (205) is fixedly inserted into the top of the U-shaped frame (204).

3. The purification equipment for high-purity sulfuric acid processing according to claim 1, characterized in that: The shaking mechanism (3) comprises an L-shaped plate (304) rotatably connected to the side wall of each support plate (21) via a first rotating shaft (305), and a first motor (306) is fixedly connected to the side wall of one of the L-shaped plates (304), two symmetrically arranged second sets of rods (302) are fixedly connected to the side wall of each of the L-shaped plates (304), and the side wall of the second sets of rods (302) is sleeved with a second sleeve (301), the other end of the second sleeve (301) is fixed to the side wall of the moving plate (20), and the side wall of the second sleeve (301) is sleeved with a second spring (303), one end of the first rotating shaft (305) is fixedly connected to a rotating disk (307), the top of the rotating disk (307) is fixedly connected to a hemispherical protrusion (308), and the top of the moving plate (20) is fixedly connected to a pushing block (309).

4. The purification equipment for high-purity sulfuric acid processing according to claim 1, characterized in that: The power supply mechanism (4) comprises a first contact (401) fixedly connected to the side wall of each electric heating ring (12), and a fixed block (405) is fixedly connected to the side wall of the distillation tank (11), two symmetrically arranged first T-shaped guide rods (406) are inserted at the bottom of the fixed block (405), and a moving block (402) is fixedly connected to the lower end of the first T-shaped guide rod (406), the side wall of the moving block (402) is fixedly connected to a conductive plate (403), and the side wall of the conductive plate (403) is fixedly connected to a plurality of second contacts (404) arranged in an array, the side wall of the first T-shaped guide rod (406) is sleeved with a third spring (407), and the movement of the moving block (402) is driven by a driving mechanism (6).

5. The purification equipment for high-purity sulfuric acid processing according to claim 4, characterized in that: The pushing mechanism (6) comprises a first connecting block (601) fixedly connected to the side wall of the moving block (402), and the top of the bottom plate (1) is connected to a moving frame (602) via a reset mechanism (7), and the moving frame (602) comprises a first inclined surface (603) and a second inclined surface (604).

6. The purification equipment for high-purity sulfuric acid processing according to claim 5, characterized in that: The reset mechanism (7) comprises a support block (701) fixedly connected to the top of the bottom plate (1), and two symmetrically arranged second T-shaped guide rods (702) are inserted into the side wall of the support block (701), one end of the second T-shaped guide rod (702) is fixedly connected to a second connection block (703), the second connection block (703) is fixed to the side wall of the movable frame (602), and the side wall of the second T-shaped guide rod (702) is sleeved with a fourth spring (704).

7. The purification equipment for high-purity sulfuric acid processing according to claim 1, characterized in that: The moving mechanism (8) comprises two symmetrically arranged third sleeves (802) fixedly connected to the side walls of the second sector disk (19), and a third sleeve rod (801) is inserted into the third sleeve (802), the other end of the third sleeve rod (801) is fixed to the side wall of the sliding groove (18), and the side wall of the third sleeve rod (801) is sleeved with a fifth spring (803), the side wall of the sliding groove (18) is fixedly connected to an electromagnet (804), and the side wall of the second sector disk (19) is fixedly connected to an iron block (805).

8. The purification equipment for high-purity sulfuric acid processing according to claim 1, characterized in that: The lifting mechanism (9) comprises a U-shaped plate (901) fixedly connected to the top of the distillation tank (11), and a fourth rod (902) is fixedly connected to the top of the U-shaped plate (901), a fourth sleeve (903) is sleeved on the side wall of the fourth rod (902), and the lower end of the fourth sleeve (903) passes through the top of the distillation tank (11) and is fixed to the top of the first fan-shaped disk (17), a second motor (906) is fixedly connected to the top of the U-shaped plate (901), and a threaded rod (905) is fixedly connected to the output end of the second motor (906), a threaded tube (904) is threadedly connected to the side wall of the threaded rod (905), and the output end of the threaded tube (904) passes through the top of the distillation tank (11) and is fixed to the top of the first fan-shaped disk (17).

9. The purification equipment for high-purity sulfuric acid processing according to claim 8, characterized in that: The driving mechanism (10) comprises a second connecting plate (1001) fixedly connected to the side wall of the fourth sleeve (903), and the side wall of the second connecting plate (1001) is fixedly connected to an L-shaped block (1002), the upper end of the rotating rod (22) passes through the top of the L-shaped block (1002) and is fixedly connected to a driven bevel gear (1003), and the side wall of the L-shaped block (1002) is rotatably connected to a driving bevel gear (1005) via a second rotating shaft (1004), and the side wall of the second rotating shaft (1004) is fixedly connected to a plurality of protrusions ( 1006), and a mounting plate (1007) is fixedly connected to the top of the distillation tank (11), a slide groove (1008) is provided on the side wall of the mounting plate (1007), and a slide plate (1010) is slidably connected in the slide groove (1008), a sixth spring (1009) is fixedly connected between the slide plate (1010) and the slide groove (1008), and a plurality of triangular blocks (1011) arranged in an array are fixedly connected to the side wall of the slide plate (1010), and the triangular blocks (1011) include a limiting surface (1012) and a third inclined surface (1013).

10. A purification method for high-purity sulfuric acid processing, using a purification device for high-purity sulfuric acid processing as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: During purification, sulfuric acid raw material is added into the distillation tank (11) through the feed valve (13). At the same time, as the amount of sulfuric acid raw material in the distillation tank (11) increases, its mass gradually increases, thereby pushing the distillation tank (11) and the moving plate (20) to move downward, and the first spring (203) is compressed. At this time, the distance of the moving plate (20) is detected by the distance sensor (205) to determine the compression amount of the first spring (203), thereby obtaining the mass of the added sulfuric acid raw material; S2: When the movable plate (20) moves downward, it contacts the first inclined surface (603), thereby pushing the movable frame (602) to move in a direction close to the first connecting block (601). At the same time, the fourth spring (704) is compressed, and the first connecting block (601) contacts the second inclined surface (604), thereby pushing the movable block (402) and the conductive plate (403) to move upward. The third spring (407) is compressed, so that the second contact (404) contacts the first contact on the side wall of each electric heating ring (12) in sequence from bottom to top. The moving plate (20) contacts the first contact (401) with the second contact (404), thereby connecting the circuit for controlling the electric heating ring (12), thereby heating the distillation tank (11). The greater the downward stroke of the moving plate (20), that is, the more sulfuric acid raw material is in the distillation tank (11), the higher the liquid level. At this time, the more the first contact (401) is connected to the second contact (404), that is, the more the electric heating rings (12) are heated, so that it is convenient to adjust and control the number of electric heating rings (12) that are powered on for heating according to the amount of sulfuric acid raw material added to the distillation tank (11); S3: When heating is performed, the first motor (306) is started to rotate forward and reversely at a certain angle. The rotation of the first motor (306) drives the first rotating shaft (305) and the support plate (21) to swing, thereby driving the distillation tank (11) to swing back and forth. At the same time, when the first rotating shaft (305) rotates, the rotating disk (307) is driven to rotate synchronously. When the hemispherical protrusion (308) abuts against the side wall of the pushing block (309), the rotating disk (307) is pushed. The second spring (303) moves in a direction away from the pushing block (309), and drives the L-shaped plate (304), the support plate (21) and the distillation tank (11) to move synchronously. At the same time, the second spring (303) is deformed. When the hemispherical protrusion (308) passes over the pushing block (309), the distillation tank (11) can move and reset under the action of the second spring (303), so that the distillation tank (11) can move back and forth, and a shaking effect can be formed on the sulfuric acid raw material in the distillation tank (11); S4: When the temperature of the sulfuric acid raw material in the distillation tank (11) rises to 220-250°C, the second motor (906) is started. The rotation of the second motor (906) drives the rotation of the threaded rod (905), so that the fourth sleeve (903) and the threaded tube (904) move downward, and drive the first fan-shaped disk (17) and the second fan-shaped disk (19) to move downward synchronously. At the same time, the first discharge valve (14) is opened. At this time, low-boiling impurities are discharged through the first discharge valve (14) for condensation and collection. After the temperature of the distillation tank (11) rises to 320-340°C and the temperature is maintained, the first fan-shaped disk (17) is driven to continue to move downward by the lifting mechanism (9) and its bottom is in contact with the liquid surface of the sulfuric acid raw material. In addition, the electromagnet (804) is The power is turned off. At this time, the second fan-shaped disc (19) can extend outward along the sliding groove (18) under the action of the fifth spring (803), and form a complete disc with the first fan-shaped disc (17) and match the inner wall of the distillation tank (11). Then, the first fan-shaped disc (17) and the second fan-shaped disc (19) are moved upward by the lifting mechanism (9). At this time, the steam of the low-boiling impurities above can be pushed upward and completely discharged through the first discharge valve (14). At the same time, a vacuum state can be formed between the first fan-shaped disc (17), the second fan-shaped disc (19) and the liquid surface. At this time, the sulfuric acid vapor is below the first fan-shaped disc (17) and the second fan-shaped disc (19), so that the sulfuric acid vapor and the low-boiling impurity vapor can be isolated to avoid mixing; S5: When the first sector disk (17) and the second sector disk (19) move to the top of the distillation tank (11), the low-boiling-point impurity vapor is completely discharged through the first discharge valve (14). Then, the first discharge valve (14) is closed, the second discharge valve (15) is opened, and the electromagnet (804) is energized. After the electromagnet (804) is energized, the second sector disk (19) is retracted into the sliding groove (18). At the same time, the fifth spring (803) is compressed. Then, the first sector disk (17) and the second sector disk (19) are moved to the top of the distillation tank (11). The plate (19) moves downward, at which time, the sulfuric acid vapor can be discharged through the second discharge valve (15) for condensation and collection. When the first fan-shaped plate (17) is in contact with the liquid surface, the second fan-shaped plate (19) is extended again, and the first fan-shaped plate (17) and the second fan-shaped plate (19) are driven to move upward by the lifting mechanism (9). This reciprocating process can generate a negative pressure state above the liquid surface during purification, and the generated sulfuric acid vapor can be squeezed out through the second discharge valve (15), and the remaining high-boiling point impurities are discharged through the third discharge valve (16); S6: Furthermore, when the fourth sleeve (903), the threaded tube (904) and the first fan-shaped disk (17) move downward, the first connecting plate (23) and the wave-breaking plate (5) are driven to move downward synchronously. At the same time, the second connecting plate (1001) and the L-shaped block (1002) are driven to move synchronously. At this time, the protrusion (1006) abuts against the third inclined surface (1013) to squeeze it into the slide groove (1008). At the same time, the sixth spring (1009) is compressed. At this time, the second rotating shaft (1004) does not rotate, that is, it does not drive the rotating rod (22) and the first connecting plate (23) to rotate. When the wave-breaking plate (5) is inserted into the sulfuric acid raw material, it can play a wave-proof effect and reduce the fluctuation of the liquid level. S7: When the first sector disk (17) and the second sector disk (19) move upward, the triangular block (1011) can extend under the action of the sixth spring (1009) and make its protrusion (1006) abut against the limit surface (1012), thereby pushing the second rotating shaft (1004) to rotate. The rotation of the second rotating shaft (1004) rotates the active bevel gear (1005), and the rotation of the active bevel gear (1005) drives the driven bevel gear (1003) and the rotating rod (22) to rotate, thereby driving the first connecting plate (23) and the wave-breaking plate (5) to rotate, thereby achieving a certain stirring effect on the sulfuric acid raw material, making the heating efficiency higher and the effect better. In addition, when the wave-breaking plate (5) is separated from the sulfuric acid raw material, the sulfuric acid raw material can be prevented from adhering to its surface through rotation.

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