A scale-preventing evaporation crystallization device and its control method

Abstract

This invention relates to the field of evaporation crystallization equipment technology, and in particular to an anti-scaling evaporation crystallization equipment and its control method. The equipment includes a base frame, a heating tank, and a heating assembly. The heating assembly is mounted on the base frame, and the heating tank is fixedly installed on the top of the base frame. A crystallization tank is disposed inside the heating tank. The heating assembly is used to heat the crystallization tank. The equipment also includes a vertical cylinder disposed inside the crystallization tank. Through the use of a shielding assembly, this invention, on the one hand, prevents the shielding assembly from bringing dirt from the inner wall of the crystallization tank into the solution when it moves downwards, thus avoiding affecting crystal precipitation. On the other hand, when the shielding assembly moves upwards, it contacts and rotates against the inner wall of the crystallization tank, thereby scraping away the solution and formed dirt on the inner wall of the crystallization tank, which helps to reduce scaling and remove the generated dirt.

Description

Technical Field

[0001] This invention relates to the field of evaporation crystallization equipment, and more particularly to an anti-scaling evaporation crystallization equipment and its control method. Background Technology

[0002] Evaporation crystallization equipment is widely used in the chemical industry, as well as the non-ferrous metals industry, pesticide industry, food industry, pharmaceutical industry, ammonia desulfurization, mining and smelting, steel plants, oil fields and other industries for product manufacturing and wastewater treatment. Crystalline products can be obtained through the evaporation crystallization process.

[0003] Existing technologies disclose some invention patents related to evaporation crystallization equipment. Chinese patent application number 201520273678.7 discloses a device for crystallizing a solution, including a circulation pipe, a circulation pump connected to the circulation pipe, and a heating chamber disposed on the circulation pipe. The two ends of the circulation pipe are respectively connected to the side wall of the evaporation chamber and the crystal growth chamber. The bottom of the evaporation chamber is also connected to the crystal growth chamber through a central pipe. The lower part of the crystal growth chamber is provided with a discharge port.

[0004] However, the aforementioned evaporation crystallization equipment still has certain drawbacks in use. During the stirring of the solution inside the container wall, the solution is heated and splashes, causing a large amount of solution to splash onto the container wall above the solution surface. In the existing technology, a scraper is generally used to scrape off the dirt formed on the inner wall of the crystallization tank to prevent scaling. However, although the conventional scraper can remove the scale during the scraping process, the scraped scale is easy to fall back into the solution, thus affecting the precipitation of crystals. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-scaling evaporation crystallization device and its control method.

[0006] In a first aspect, the present invention provides an anti-scaling evaporation crystallization device, comprising a base frame, a heating tank, and a heating assembly. The heating assembly is disposed on the base frame, the heating tank is fixedly installed on the top of the base frame, and a crystallization tank is disposed inside the heating tank. The heating assembly is used to heat the crystallization tank, and the device further comprises:

[0007] A vertical cylinder is installed inside the crystallization tank;

[0008] A driving component, fixedly installed on the top of the heating tank, is used to drive the vertical cylinder to rotate;

[0009] A shielding assembly, disposed on the outer wall of the vertical cylinder, is used to block splashed solution;

[0010] The first pushing component is fixedly connected to the outer wall of the vertical cylinder via a connecting plate, and is used to push the shielding assembly to move vertically downward.

[0011] The detection unit is used to acquire temperature information;

[0012] The controller is fixedly installed on the side wall of the base frame. After the detection unit detects local temperature inconsistency, the controller controls the first pusher to push the shielding assembly to move downward without contacting the inner wall of the crystallization tank, and enables the shielding assembly to clean and collect the dirt splashed on the inner wall of the crystallization tank during the return process.

[0013] The present invention, through the arrangement of the shielding component, on the one hand, ensures that the shielding component does not come into contact with the inner wall of the crystallization tank during its downward movement, thereby preventing the shielding component from bringing dirt from the inner wall of the crystallization tank into the solution and thus avoiding affecting the precipitation of crystals. On the other hand, when the shielding component moves upward, it comes into contact with the inner wall of the crystallization tank and rotates, thereby scraping away the solution and the dirt formed on the inner wall of the crystallization tank, which helps to reduce the formation of scale and remove the generated dirt.

[0014] Preferably, the masking assembly includes a sealing assembly and a scraping assembly, and further includes:

[0015] A turntable is disposed on the outer wall of the vertical cylinder, and the diameter of the turntable is smaller than the diameter of the inner wall of the crystallization tank;

[0016] A suction box is fixedly connected to the top of the turntable, and two suction ports are symmetrically opened on the outer wall of the suction box;

[0017] The rotating cylinder has its bottom rotatably connected to the top of the absorption cylinder, the rotating cylinder is vertically slidably connected to the outer wall of the vertical cylinder, and the rotating cylinder is fixedly connected to the telescopic end of the first pusher.

[0018] A negative pressure pump is fixedly connected to the top of the suction box;

[0019] The exhaust pipe has one end fixedly connected to the air inlet of the negative pressure pump, and the other end passes through the absorption box and is located inside the cavity.

[0020] The controller is also used to control the sealing assembly to move synchronously upward with the turntable after the turntable moves downward and engages with the sealing assembly, so as to collect the dirt scraped off by the scraping assembly.

[0021] Preferably, the sealing assembly includes:

[0022] The second pushing component is fixedly connected to the inner wall of the crystallization tank via a mounting plate;

[0023] An annular sealing ring is fixed to the telescopic end of the second pusher, and the inner diameter of the annular sealing ring is equal to the outer diameter of the turntable.

[0024] Preferably, the scraping assembly includes:

[0025] The U-shaped bracket is fixedly connected to the outer wall of the rotating drum by a third pusher.

[0026] The scraper is fixedly connected between the two side walls of the U-shaped bracket.

[0027] Preferred options also include:

[0028] A drive motor is fixedly connected to the top of the U-shaped bracket;

[0029] A threaded rod is fixedly connected to the output shaft end of the drive motor, and the other end of the threaded rod is rotatably connected to the U-shaped bracket;

[0030] A threaded seat is threaded onto the outer wall of the threaded rod.

[0031] Two sweeping rods are symmetrically and fixedly connected to the side wall of the threaded seat near the scraper;

[0032] Multiple cleaning blades are provided and are fixedly connected to the side wall of the sweeping rod at corresponding positions in a linear array.

[0033] Preferred options also include:

[0034] The actuating element is fixedly connected to the outer wall of the threaded rod;

[0035] A clearance opening is provided on the side of the scraper facing the U-shaped bracket;

[0036] A sliding groove is formed on the side wall of the U-shaped card holder;

[0037] A toggle plate is slidably connected inside the sliding groove, and a first spring is fixedly connected between the toggle plate and the inner wall of the sliding groove;

[0038] Rotary base, which is rotatably connected to the actuating plate;

[0039] The skateboard is fixedly connected to the swivel base via a connecting frame.

[0040] Preferred options also include:

[0041] An electric push rod is fixedly connected to the side of the sliding plate facing the receiving round box;

[0042] An elastic telescopic rod is fixedly connected to the telescopic end of the electric push rod;

[0043] The knife holder is fixedly connected to the fixing part of the elastic telescopic rod;

[0044] A through groove is formed on the outer wall of the tool holder, and a sliding rod is fixedly connected between the inner walls of the through groove;

[0045] The cutters are slidably connected to the outer wall of the slide rod in a linear array, and a second spring is fixedly connected between each pair of adjacent cutters;

[0046] The card plate is fixedly connected to the outer wall of the telescopic end of the electric push rod;

[0047] Multiple linear pushers are provided and fixedly connected to the bottom of the card plate in a linear array.

[0048] Preferred options also include:

[0049] A straight rod is rotatably connected to the bottom surface of the inner wall of the crystallization tank;

[0050] The spiral rotating blade is fixedly connected to the outer wall of the straight rod;

[0051] A connector is fixedly attached to the bottom of the turntable;

[0052] After the connector moves downward and contacts the top of the straight rod, it drives the straight rod to rotate, causing the spiral blades to carry the water flow downward.

[0053] Secondly, a control method for an anti-scaling evaporation crystallization device is provided, the control method comprising the following steps:

[0054] The controller receives temperature inconsistency information obtained by the detection unit;

[0055] The controller generates first control information and second control information based on the temperature inconsistency information. The first control information is used to control the first pusher to start working, and the second control information is used to control the drive to start working.

[0056] The controller sends the first control information to the first pusher to control the first pusher to push the turntable downward;

[0057] The controller sends the second control information to the third pusher to control the third pusher to start, so as to push the U-shaped card holder to move towards the side wall of the crystallization tank.

[0058] Preferred options also include:

[0059] The controller generates the third and fourth control information based on the push of the first pusher.

[0060] The controller sends the third control information to the second pusher to control the second pusher to push the annular sealing ring to move upward with the turntable;

[0061] The controller sends the fourth control information to the negative pressure pump to control the negative pressure pump to start the ventilation.

[0062] Compared with the prior art, the present invention has the following beneficial effects:

[0063] 1. The present invention, through the arrangement of the shielding component, achieves two objectives: First, the shielding component does not come into contact with the inner wall of the crystallization tank during its downward movement, thus preventing the shielding component from bringing dirt from the inner wall of the crystallization tank into the solution and affecting crystal precipitation. Second, the shielding component comes into contact with and rotates against the inner wall of the crystallization tank during its upward movement, thereby scraping away the solution and dirt formed on the inner wall of the crystallization tank, which helps to reduce scaling and remove existing dirt. During the process of cleaning the dirt, the shielding component simultaneously collects the removed dirt to reduce the occurrence of dirt falling back into the solution, thus promoting stable crystal precipitation.

[0064] 2. This invention, through the arrangement of sweeping rods and cleaning blades, allows the two sweeping rods to push the dirt adhering to the scraper along the path onto the turntable as they move downwards, facilitating collection. The sweeping rods can be made of the same material as polishing stones, which helps to simultaneously polish the scraper as the sweeping rods move downwards, thus helping the scraper maintain its sharpness. Furthermore, the cleaning blades are installed at the ends of the sweeping rods, so that during the up-and-down movement of the sweeping rods, the cleaning blades scrape in different directions relative to the scraper, thereby helping to better remove the scale.

[0065] 3. The present invention uses a toggle plate to move dirt along the path towards the outer wall of the adsorption port, making it easier for the dirt to be adsorbed and collected when passing through the adsorption port. When the toggle member disengages from the slide plate, the slide plate returns to its original position under the action of the first spring, and the toggle plate will deflect towards the adsorption port when it encounters resistance during the return process. This helps to reduce the occurrence of the toggle plate pushing the dirt away from the adsorption port. Attached Figure Description

[0066] Figure 1 This is a schematic diagram of the control method of the present invention.

[0067] Figure 2 This is a schematic diagram of the overall structure of the evaporation crystallization equipment of the present invention.

[0068] Figure 3 This is a cross-sectional structural diagram of the heating tank and crystallizing tank of the present invention.

[0069] Figure 4 For the present invention Figure 3 A magnified structural diagram of point A in the middle.

[0070] Figure 5 This is a schematic diagram of the structure of the present invention along the cross-section of the crystallization tank.

[0071] Figure 6 This is a schematic diagram of the connection between the turntable and the receiving box in this invention. Figure 1 .

[0072] Figure 7 This is a schematic diagram of the connection between the turntable and the receiving box in this invention. Figure 2 .

[0073] Figure 8 For the present invention Figure 7 A magnified structural diagram at point B in the middle.

[0074] Figure 9 This is a schematic diagram of the structure of the turntable and the receiving box of the present invention. Figure 3 .

[0075] Figure 10 This is a schematic diagram of the connection between the turntable and the card plate of the present invention.

[0076] Figure 11 This is a schematic diagram of the connection between the U-shaped card holder and the scraper in this invention. Figure 1 .

[0077] Figure 12 For the present invention Figure 11 A magnified structural diagram at point C.

[0078] Figure 13 For the present invention Figure 11 A magnified structural diagram at point D.

[0079] Figure 14 This is a schematic diagram of the connection between the U-shaped card holder and the scraper in this invention. Figure 2 .

[0080] Figure 15 For the present invention Figure 14 A magnified structural diagram at point E in the middle.

[0081] In the diagram: 1. Base frame; 2. Heating tank; 3. Crystallization tank; 4. Vertical cylinder; 401. Exhaust port; 5. Driving component; 6. First pushing component; 601. Connecting plate; 7. Detection unit; 8. Controller; 9. Turntable; 10. Suction box; 11. Negative pressure pump; 12. Exhaust pipe; 13. Suction port; 14. Second pushing component; 15. Annular sealing ring; 16. Rotary cylinder; 17. U-shaped bracket; 18. Scraper; 19. Drive motor; 20. Threaded rod; 21. Threaded seat; 22. Sweeping rod; 23. Cleaning blade 24. Picking component; 25. Clearing opening; 26. Sliding groove; 27. Actuating plate; 28. Rotary seat; 29. ​​First spring; 30. Slide plate; 31. Electric push rod; 32. Elastic telescopic rod; 33. Blade holder; 34. Through groove; 35. Slide rod; 36. Second spring; 37. Cutter; 38. Clamping plate; 39. Linear pusher; 40. Straight rod; 41. Spiral rotating blade; 42. Connecting plate; 43. Clamping groove; 44. Vent hole; 45. Elastic telescopic rod; 46. Actuating rod; 47. Third pusher. Detailed Implementation

[0082] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0083] Application scenario: During the stirring of the solution inside the container wall, the solution is heated and splashes, causing a large amount of solution to splash onto the container wall above the solution surface. In the existing technology, a scraper is generally used to scrape off the dirt formed on the inner wall of the crystallization tank to prevent scaling. However, although the conventional scraper can remove the scale, the scraped scale is easy to fall back into the solution, thus affecting the precipitation of crystals.

[0084] like Figures 2 to 15 The illustrated anti-scaling evaporation crystallization device includes a base frame 1, a heating tank 2, and a heating assembly. The heating assembly is mounted on the base frame 1, and the heating tank 2 is fixedly installed on the top of the base frame 1. A crystallization tank 3 is disposed inside the heating tank 2. The heating assembly is used to heat the crystallization tank 3. The device also includes:

[0085] Vertical cylinder 4 is installed inside crystallizer 3;

[0086] The driving component 5 is fixedly installed on the top of the heating tank 2 and is used to drive the vertical cylinder 4 to rotate;

[0087] A shielding assembly, installed on the outer wall of the vertical cylinder 4, is used to block splashed solution;

[0088] The first pusher 6 is fixedly connected to the outer wall of the vertical cylinder 4 via the connecting plate 601, and is used to push the shielding assembly to move vertically downward;

[0089] Detection unit 7 is used to acquire temperature information;

[0090] The controller 8 is fixedly installed on the side wall of the base frame 1. After the detection unit 7 detects local temperature inconsistency, the controller 8 controls the first pusher 6 to push the shielding assembly to prevent it from contacting the inner wall of the crystallization tank 3 during the downward movement, and makes the shielding assembly clean and collect the dirt splashed on the inner wall of the crystallization tank 3 during the return process.

[0091] Specifically, the gap between the heating tank 2 and the crystallizing tank 3 is filled with heat by a heating component to ensure uniform heating of the crystallizing tank 3. The heating component consists of existing components such as heaters, which will not be described in detail here. During the evaporation and crystallization process of the solution inside the crystallizing tank 3, the temperature is monitored by the detection unit 7. When the detection unit 7 detects local temperature inconsistencies in the solution inside the crystallizing tank 3, it is determined that the solution is unevenly heated and prone to splashing above the liquid surface. At this time, a shielding component is set to block the splashed solution to reduce the solution from splashing to higher levels on the inner wall of the crystallizing tank 3. Subsequently, the controller 8 first controls the first pusher 6 to start working, and the first pusher 6 pushes the shielding component downward. During the downward movement of the shielding component, it does not come into contact with the inner wall of the crystallization tank 3. This helps prevent the shielding component from bringing dirt from the inner wall of the crystallization tank 3 into the solution, thus avoiding affecting the precipitation of crystals. Subsequently, the controller 8 controls the shielding component to come into contact with the inner wall of the crystallization tank 3 and controls the first pusher 6 to drive the shielding component to move upward. During this process, the controller 8 also controls the drive component 5 to start. The drive component 5 drives the vertical cylinder 4 to rotate, and the vertical cylinder 4 drives a part of the shielding component to rotate. Because the shielding component will come into contact with and rotate the inner wall of the crystallization tank 3 when it moves upward, it will scrape off the solution and dirt formed on the inner wall of the crystallization tank 3, which helps to reduce the formation of scale and scrape off the generated dirt.

[0092] During the process of cleaning the dirt by the masking component, the masking component will simultaneously collect the dirt that has been removed to reduce the occurrence of dirt falling back into the solution, thereby facilitating the stable precipitation of crystals.

[0093] As an optional implementation, the first pusher 6 is specifically a first electric push rod.

[0094] As an optional implementation, the driving component 5 is specifically a servo motor, and the driving shaft of the driving component 5 passes through the heating tank 2 and the crystallizing tank 3 and is fixedly connected to the vertical cylinder 4.

[0095] As a further embodiment, the masking assembly includes a sealing assembly and a scraping assembly, and further includes:

[0096] Turntable 9 is set on the outer wall of vertical cylinder 4, and the diameter of turntable 9 is smaller than the diameter of the inner wall of crystallization tank 3;

[0097] The suction box 10 is fixedly connected to the top of the turntable 9, and two suction ports 13 are symmetrically opened on the outer wall of the suction box 10.

[0098] Rotating cylinder 16, the bottom of rotating cylinder 16 is rotatably connected to the top of suction box 10, rotating cylinder 16 is vertically slidably connected to the outer wall of vertical cylinder 4, and rotating cylinder 16 is fixedly connected to the telescopic end of first pusher 6.

[0099] The negative pressure pump 11 is fixedly connected to the top of the suction box 10;

[0100] The exhaust pipe 12 is fixedly connected at one end to the air inlet of the negative pressure pump 11, and the other end passes through the suction box 10 located inside the cavity.

[0101] The controller 8 is also used to control the sealing assembly to move synchronously upward with the turntable 9 after the turntable 9 moves downward and engages with the sealing assembly, so as to collect the dirt scraped off by the scraping assembly;

[0102] It should be further explained that an exhaust port 401 is provided on the outer wall of the vertical cylinder 4, so that after the sealing component is fitted with the turntable 9, the airflow can still be discharged outward through the vertical cylinder 4 and the exhaust port 401 to maintain pressure balance.

[0103] Specifically, the first pusher 6 first pushes the turntable 9 and the suction box 10 to move downward along the outer wall of the vertical cylinder 4 synchronously through the rotating cylinder 16. The suction box 10 drives the scraping assembly to move downward. During the downward movement, the scraping assembly does not contact the inner wall of the crystallization tank 3, so that a gap is left between the turntable 9 and the crystallization tank 3 during the downward movement. This allows gas to flow upward through the gap and be discharged by the exhaust port 401 reserved on the crystallization tank 3. After the turntable 9 moves down and fits into the sealing assembly, the controller 8 first controls the scraping assembly to contact the side wall of the crystallization tank 3 to facilitate the scraping of dirt splashed above the liquid surface. Then, the controller 8 controls the negative pressure pump 11 to start working synchronously with the sealing assembly. The negative pressure pump 11 causes the air inside the suction box 10 to be drawn out through the exhaust pipe 12, so that a negative pressure space is formed inside the suction box 10. Then, the dirt scraped off by the scraping assembly onto the turntable 9 and the sealing assembly is adsorbed through the adsorption port 13, so that the dirt is collected.

[0104] Furthermore, as the sealing assembly moves upward synchronously with the turntable 9, the sealing assembly serves two purposes: firstly, it limits the turntable 9 to prevent it from rotating with the vertical cylinder 4; secondly, the sealing assembly moves upward synchronously with the turntable 9, thereby blocking the gap between the crystallization tank 3 and the turntable 9, which helps to prevent the dirt from falling back through the gap after the scraping assembly scrapes it off.

[0105] It should be further explained that the turntable 9 includes a circular receiving plate and a rotating ring. The circular receiving plate and the rotating ring are rotatably connected. The rotating ring is vertically slidably connected to the outer wall of the vertical cylinder 4, and the receiving box 10 is sleeved on the outer wall of the vertical cylinder 4.

[0106] As an optional implementation, the detection unit 7 is specifically a temperature sensor. There are multiple temperature sensors, and all temperature sensors are fixedly connected to the bottom of the turntable 9 in a circumferential array.

[0107] Specifically, by setting up multiple temperature sensors, the temperature of different parts of the solution can be monitored simultaneously.

[0108] As a further embodiment, the sealing assembly includes:

[0109] The second pusher 14 is fixedly connected to the inner wall of the crystallization tank 3 by a mounting plate;

[0110] The annular sealing ring 15 is fixed to the telescopic end of the second pusher 14, and the inner diameter of the annular sealing ring 15 is equal to the outer diameter of the turntable 9.

[0111] Specifically, after the turntable 9 moves downward and enters the inner ring of the annular sealing ring 15, the turntable 9 contacts the inner ring of the annular sealing ring 15. Under the action of friction, the rotation of the turntable 9 is restricted, so that the turntable 9 and the suction box 10 will not rotate with the vertical cylinder 4.

[0112] The controller 8 controls the second pusher 14 to start working, and the second pusher 14 pushes the annular sealing ring 15 to move upward, so that the annular sealing ring 15 moves upward synchronously with the turntable 9. The annular sealing ring 15 is set in two ways. On the one hand, it blocks the gap reserved between the crystallization tank 3 and the turntable 9, which helps to reduce the fall of dirt and supports the dirt. On the other hand, it limits the turntable 9 to prevent the turntable 9 from rotating with the vertical cylinder 4, which would affect the adsorption of the adsorption port 13.

[0113] As an optional implementation, the second pusher 14 is specifically a second electric push rod.

[0114] As a further embodiment, the scraping assembly includes:

[0115] U-shaped bracket 17, U-shaped bracket 17 is fixedly connected to the outer wall of rotating cylinder 16 by the third pusher 47;

[0116] The scraper 18 is fixedly connected between the two side walls of the U-shaped bracket 17;

[0117] Specifically, after the annular sealing ring 15 and the turntable 9 are joined and fitted together, the controller 8 controls the third pusher 47 to start working. The third pusher 47 pushes the U-shaped bracket 17 to move. The U-shaped bracket 17 drives the scraper 18 to fit against the inner wall of the crystallization tank 3. During the rotation of the vertical cylinder 4, the rotating cylinder 16 will be driven to rotate. The rotating cylinder 16 drives the U-shaped bracket 17 to rotate through the third pusher 47. The U-shaped bracket 17 drives the scraper 18 to rotate. Thus, the scraper 18 rotates to scrape away the dirt, so that the dirt falls onto the turntable 9 and is then adsorbed and collected by the adsorption port 13.

[0118] As an optional implementation, the third pusher 47 is specifically a third electric push rod.

[0119] As a further implementation, it also includes:

[0120] The drive motor 19 is fixedly connected to the top of the U-shaped bracket 17;

[0121] The threaded rod 20 is fixedly connected to the output shaft end of the drive motor 19, and the other end of the threaded rod 20 is rotatably connected to the U-shaped bracket 17.

[0122] Threaded seat 21 is threadedly connected to the outer wall of threaded rod 20;

[0123] Two sweeping rods 22 are symmetrically fixedly connected to the side wall of the threaded seat 21 near the scraper 18;

[0124] Multiple cleaning blades 23 are provided and are fixedly connected to the side wall of the sweeping rod 22 at corresponding positions in a linear array;

[0125] Specifically, as mentioned in the above embodiment, the scraper 18 is used to scrape away the dirt generated by splashing above the liquid surface. However, during the scraping process, some dirt will adhere to the scraper 18, which may cause the annular sealing ring 15 to fall back into the solution through the gap after returning to its original position, which may easily affect crystallization.

[0126] Therefore, during the operation of the scraper 18, the controller 8 controls the drive motor 19 to work. The drive motor 19 drives the threaded rod 20 to rotate, thereby causing the threaded seat 21 to move downward. The downward movement of the threaded seat 21 will drive the two sweeping rods 22 to move downward. Thus, the sweeping rods 22 push the dirt adhering to the scraper 18 on the travel path onto the turntable 9 for easy collection. The sweeping rods 22 can be made of the same material as the polishing stone, which helps to polish the scraper 18 simultaneously when the sweeping rods 22 move downward, so as to help the scraper 18 maintain its sharpness. The end of the sweeping rod 22 is equipped with a cleaning blade 23. Thus, during the up and down movement of the sweeping rod 22, the cleaning blade 23 will scrape in different directions relative to the scraper 18, which helps to better clean the scale.

[0127] As a further implementation, it also includes:

[0128] The actuating element 24 is fixedly connected to the outer wall of the threaded rod 20;

[0129] The clearance opening 25 is located on the side of the scraper 18 facing the U-shaped card holder 17;

[0130] The sliding groove 26 is formed on the side wall of the U-shaped card holder 17;

[0131] The actuating plate 27 is slidably connected to the inside of the sliding groove 26, and a first spring 29 is fixedly connected between the actuating plate 27 and the inner wall of the sliding groove 26.

[0132] Rotary seat 28, which is rotatably connected to the actuating plate 27;

[0133] The slide plate 30 is fixedly connected to the swivel base 28 via a connecting bracket;

[0134] Specifically, as mentioned in the above embodiment, dirt is adsorbed by setting a negative pressure adsorption method. However, during the adsorption process at the adsorption port 13, the dirt may be difficult to enter the inside of the absorption box 10 for collection due to friction and other external factors.

[0135] Therefore, during the rotation of the screw, the lifting member 24 will be driven to rotate. During the rotation of the lifting member 24, the slide plate 30 will be driven to move closer to the adsorption port 13. The slide plate 30 will drive the rotating base 28 to rotate through the connecting frame. The rotating base 28 will drive the actuating plate 27 to move. The actuating plate 27 cannot deflect away from the adsorption port 13. Thus, the actuating plate 27 will push the dirt on the path to move closer to the outer wall of the adsorption port 13, so that the dirt is more easily adsorbed and collected by the adsorption port 13 when it passes through the adsorption port 13.

[0136] Furthermore, when the agitator 24 disengages from the slide plate 30, the slide plate 30 returns to its original position under the action of the first spring 29. During the return process, the agitator 27 encounters resistance and deflects towards the adsorption port 13, which helps to reduce the occurrence of the agitator 27 pushing the dirt away from the adsorption port 13.

[0137] As a further implementation, it also includes:

[0138] An electric push rod 31 is fixedly connected to the side of the slide plate 30 facing the receiving round box 10;

[0139] The elastic telescopic rod 32 is fixedly connected to the telescopic end of the electric push rod 31;

[0140] The tool holder 33 is fixedly connected to the fixing part of the elastic telescopic rod 32;

[0141] A through groove 34 is formed on the outer wall of the tool holder 33, and a slide rod 35 is fixedly connected between the inner walls of the through groove 34;

[0142] The cutters 37 are linearly arrayed and slidably connected to the outer wall of the slide bar 35, and a second spring 36 is fixedly connected between each pair of adjacent cutters 37;

[0143] The card plate 38 is fixedly connected to the outer wall of the telescopic end of the electric push rod 31;

[0144] Multiple linear pushers 39 are provided and are fixedly connected to the bottom of the card plate 38 in a linear array;

[0145] Specifically, as mentioned in the above embodiment, the scale is cleaned by setting the scraper 18 and the cleaning blade 23. However, when the scale falls onto the turntable 9, there may be cases where the scale is large in size. Large scales are difficult to pass through the adsorption port 13 and are prone to clogging the adsorption port 13.

[0146] Therefore, during the movement of the toggle plate 27, the controller 8 synchronously controls the electric push rod 31 to start, which drives the elastic telescopic rod 32 to move downward. The elastic telescopic rod 32 drives the cutter holder 33 to move downward. The cutter holder 33 drives the cutter 37 to move downward through the slide rod 35. Thus, the reciprocating cutting of the cutter 37 helps to divide large scale into several smaller scales, which facilitates the passage of the adsorption port 13 and helps to avoid the situation where scale blocks the adsorption port 13.

[0147] Furthermore, after the cutter 37 contacts the turntable 9, the electric push rod 31 continues to push downward, which will compress the elastic telescopic rod 32 and move it downward. The electric push rod 31 will also drive the clamping plate 38 to move downward. The clamping plate 38 will drive the linear pusher 39 to move downward. The linear pusher 39 will push the corresponding two cutters 37 away from each other. Thus, the mutual separation of the cutters 37 is conducive to better breaking the scale into smaller volumes.

[0148] It should be noted that the linear pusher 39 includes a light rod and a rectangular block. The top end of the light rod is fixedly connected to the clamping plate 38, and the bottom end of the light rod is fixedly connected to the rectangular block. Guide slopes are provided at both ends of the rectangular block.

[0149] It should be noted that the plate 38 moves the rectangular block downwards via the light rod, and under the guidance of the inclined surface of the rectangular block, it pushes the two cutters 37 away from each other.

[0150] As a further implementation, it also includes:

[0151] Straight rod 40 is rotatably connected to the bottom inner wall of crystallization tank 3;

[0152] The spiral rotating blade 41 is fixedly connected to the outer wall of the straight rod 40;

[0153] The connector is fixedly attached to the bottom of the turntable 9;

[0154] After the connector moves downward and contacts the top of the straight rod 40, it drives the straight rod 40 to rotate so that the spiral rotating blade 41 drives the water flow downward.

[0155] Specifically, when the connector moves downward, it will contact the straight rod 40 and drive the straight rod 40 to rotate. The straight rod 40 will cause the spiral rotating blade 41 to rotate, thereby causing the solution to flow from top to bottom. On the one hand, the flow of liquid accelerates the crystallization process. On the other hand, the flow of liquid driven by the spiral rotating blade 41 facilitates the flow between the upper and lower liquids, which helps to reduce splashing onto the turntable 9 when it moves downward.

[0156] As an optional implementation, the connector includes a connecting plate 42 and a slot 43. The slot 43 is opened at the top of the straight rod 40. The connecting plate 42 is provided with a plurality of ventilation holes 44. The connecting plate 42 is fixedly installed inside the vertical cylinder 4. An elastic telescopic rod 45 is fixedly connected to the bottom center of the connecting plate 42. A toggle rod 46 is fixedly connected to the telescopic end of the elastic telescopic rod 45.

[0157] It should be noted that when the vertical cylinder 4 moves downward, it will cause the connecting plate 42 to move downward. The connecting plate 42 will cause the elastic telescopic rod 45 to move downward. The elastic telescopic rod 45 will cause the actuating rod 46 to move downward. If the actuating rod 46 does not just enter the slot 43, the elastic telescopic rod 32 will be compressed by force, which will help to adapt to the movement trajectory. Then, during the rotation of the vertical cylinder 4, the actuating rod 46 will eventually enter the slot 43. After the actuating rod 46 enters the slot 43, it will drive the straight rod 40 to rotate, which will help the spiral rotating blade 41 to drive the water flow. If the actuating rod 46 contacts the top of the straight rod 40, it may also drive the straight rod 40 to rotate under the action of friction, achieving the same effect.

[0158] like Figure 1 The control method for an anti-scaling evaporation crystallization device, shown herein, includes the following steps:

[0159] Controller 8 receives temperature inconsistency information obtained by detection unit 7;

[0160] The controller 8 generates first control information and second control information based on the temperature inconsistency information. The first control information is used to control the first pusher 6 to start working, and the second control information is used to control the drive 5 to start working.

[0161] The controller 8 sends the first control information to the first pusher 6 to control the first pusher 6 to push the turntable 9 downward;

[0162] The controller 8 sends the second control information to the third pusher 47 to control the third pusher 47 to start, so as to push the U-shaped card holder 17 to move towards the side wall of the crystallization tank 3.

[0163] As a further implementation, it also includes:

[0164] The controller 8 generates the third and fourth control information based on the push of the first pusher 6;

[0165] The controller 8 sends the third control information to the second pusher 14 to control the second pusher 14 to push the annular sealing ring 15 to move upward with the turntable 9;

[0166] The controller 8 sends the fourth control information to the negative pressure pump 11 to control the negative pressure pump 11 to start the ventilation.

[0167] Working principle of this invention:

[0168] The gap between the heating tank 2 and the crystallizing tank 3 is filled with heat by a heating component to ensure uniform heating of the crystallizing tank 3. The heating component consists of existing components such as heaters, which will not be described in detail here. During the evaporation and crystallization process of the solution inside the crystallizing tank 3, the temperature is monitored by the detection unit 7. When the detection unit 7 detects local temperature inconsistencies in the solution inside the crystallizing tank 3, it is determined that the solution is prone to splashing above the liquid surface. At this time, a shielding component is set to shield the splashed solution to reduce the solution from splashing to higher levels on the inner wall of the crystallizing tank 3. Subsequently, the controller 8 first controls the first pusher 6 to start working, and the first pusher 6 pushes the shielding component downward first, shielding... During the downward movement of the component, it does not come into contact with the inner wall of the crystallization tank 3. This helps prevent the shielding component from bringing dirt from the inner wall of the crystallization tank 3 into the solution, thus avoiding affecting the precipitation of crystals. Subsequently, the controller 8 controls the shielding component to come into contact with the inner wall of the crystallization tank 3 and controls the first pusher 6 to drive the shielding component to move upward. During this process, the controller 8 also controls the drive component 5 to start. The drive component 5 drives the vertical cylinder 4 to rotate, and the vertical cylinder 4 drives a part of the shielding component to rotate. Because the shielding component will come into contact with and rotate the inner wall of the crystallization tank 3 when it moves upward, it will scrape off the solution and dirt formed on the inner wall of the crystallization tank 3, which helps to reduce the formation of scale and scrape off the generated dirt.

[0169] During the process of cleaning the dirt by the masking component, the masking component will simultaneously collect the dirt that has been removed to reduce the occurrence of dirt falling back into the solution, thereby facilitating the stable precipitation of crystals.

[0170] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A scale-resistant evaporation crystallization device, comprising a base frame (1), a heating tank (2), and a heating assembly, wherein the heating assembly is disposed on the base frame (1), the heating tank (2) is fixedly installed on the top of the base frame (1), a crystallization tank (3) is disposed inside the heating tank (2), and the heating assembly is used to heat the crystallization tank (3), characterized in that, Also includes: A vertical cylinder (4) is installed inside the crystallizing tank (3); The driving component (5) is fixedly installed on the top of the heating tank (2) and is used to drive the vertical cylinder (4) to rotate; A shielding component is disposed on the outer wall of the vertical cylinder (4) to block the splashed solution; The first pusher (6) is fixedly connected to the outer wall of the vertical cylinder (4) via the connecting plate (601) and is used to push the shielding assembly to move vertically downward. The detection unit (7) is used to acquire temperature information; The controller (8) is fixedly installed on the side wall of the base frame (1). After the detection unit (7) obtains the local temperature inconsistency, the controller (8) is used to control the first pusher (6) to push the shielding assembly to not contact the inner wall of the crystallization tank (3) during the downward movement, and to make the shielding assembly clean and collect the dirt splashed on the inner wall of the crystallization tank (3) during the return process. The masking assembly includes a sealing assembly and a scraping assembly, and further includes: A turntable (9) is disposed on the outer wall of the vertical cylinder (4), and the diameter of the turntable (9) is smaller than the diameter of the inner wall of the crystallization tank (3); The controller (8) is also used to control the sealing assembly to move synchronously upward with the turntable (9) after the turntable (9) moves downward and engages with the sealing assembly, so as to collect the dirt scraped off by the scraping assembly.

2. The anti-scaling evaporation crystallization equipment according to claim 1, characterized in that, The masking component also includes: The suction box (10) is fixedly connected to the top of the turntable (9), and two suction ports (13) are symmetrically opened on the outer wall of the suction box (10). Rotary cylinder (16), the bottom of the rotating cylinder (16) is rotatably connected to the top of the absorption round box (10), the rotating cylinder (16) is vertically slidably connected to the outer wall of the vertical cylinder (4), and the rotating cylinder (16) is fixedly connected to the telescopic end of the first pusher (6); A negative pressure pump (11) is fixedly connected to the top of the suction box (10); The exhaust pipe (12) is fixedly connected at one end to the air inlet of the negative pressure pump (11), and the other end passes through the absorption box (10) and is located inside the cavity.

3. The anti-scaling evaporation crystallization equipment according to claim 2, characterized in that, The sealing assembly includes: The second pusher (14) is fixedly connected to the inner wall of the crystallization tank (3) by a mounting plate; An annular sealing ring (15) is fixed to the telescopic end of the second pusher (14), and the inner diameter of the annular sealing ring (15) is equal to the outer diameter of the turntable (9).

4. The anti-scaling evaporation crystallization equipment according to claim 3, characterized in that, The scraping assembly includes: U-shaped bracket (17), the U-shaped bracket (17) is fixedly connected to the outer wall of the rotating cylinder (16) by a third pusher (47); The scraper (18) is fixedly connected between the two side walls of the U-shaped bracket (17).

5. The anti-scaling evaporation crystallization equipment according to claim 4, characterized in that, Also includes: The drive motor (19) is fixedly connected to the top of the U-shaped bracket (17); The threaded rod (20) is fixedly connected to the output shaft end of the drive motor (19), and the other end of the threaded rod (20) is rotatably connected to the U-shaped bracket (17); A threaded seat (21) is threaded onto the outer wall of the threaded rod (20); Two sweeping rods (22) are symmetrically fixedly connected to the side wall of the threaded seat (21) near the scraper (18); Multiple cleaning blades (23) are provided and are fixedly connected to the side wall of the sweeping rod (22) at corresponding positions in a linear array.

6. A control method for an anti-scaling evaporation crystallization device, applicable to the anti-scaling evaporation crystallization device according to any one of claims 4 to 5, characterized in that, The control method includes the following steps: The controller (8) receives temperature inconsistency information obtained by the detection unit (7); The controller (8) generates first control information and second control information based on the temperature inconsistency information. The first control information is used to control the first pusher (6) to start working, and the second control information is used to control the drive (5) to start working. The controller (8) sends the first control information to the first pusher (6) to control the first pusher (6) to push the turntable (9) downward; The controller (8) sends the second control information to the third pusher (47) to control the third pusher (47) to start, so as to push the U-shaped card holder (17) to move towards the side wall of the crystallizer (3).

7. The control method for an anti-scaling evaporation crystallization device according to claim 6, characterized in that, Also includes: The controller (8) generates the third and fourth control information based on the first pusher (6); The controller (8) sends the third control information to the second pusher (14) to control the second pusher (14) to push the annular seal (15) to move upward following the turntable (9); The controller (8) sends the fourth control information to the negative pressure pump (11) to control the negative pressure pump (11) to start the ventilation.

Images