Potassium chlorate waste brine concentration and evaporation device and technology

Abstract

The invention relates to the technical field of potassium chlorate waste brine recovery, and discloses a potassium chlorate waste brine concentration and evaporation device and process, the potassium chlorate waste brine concentration and evaporation device comprises an evaporation tank, the outer wall of the evaporation tank is communicated with a feed pipe, the top of the evaporation tank is communicated with an exhaust pipe, the bottom of the evaporation tank is communicated with a waste discharge pipe, and the outer wall of the evaporation tank is provided with a heating cavity; the servo motor drives the rotating plate to rotate, on one hand, the rotating plate drives the stirring rod to revolve to achieve basic stirring, and on the other hand, the rotating plate drives the cam to rotate through the transmission assembly, the cam periodically pushes the stirring rod to ascend and descend and makes the stirring rod collide to generate vibration, and meanwhile the driving assembly is linked with the collision rod and the semicircular scraper to get close to the stirring rod for physical scraping. Triple effects of revolution stirring, up-and-down reciprocating vibration and outer wall scraping are formed, uneven crystallization caused by local overheating of potassium chlorate waste brine is avoided, crystal adhesive force can be damaged through vibration, and vibrated loose crystals are scraped.

Description

TECHNICAL FIELD

[0001] The application relates to a potassium chlorate waste brine recovery technical field, in particular to a potassium chlorate waste brine concentration and evaporation device and process. BACKGROUND

[0002] The potassium chlorate waste brine concentration and evaporation device and process are key equipment and technology for treating potassium chlorate production wastewater, recycling salt resources and realizing wastewater reduction in the industrial field, and the core principle is to remove water in the waste brine through evaporation, concentrate potassium chlorate and other salt substances to a target concentration, and then obtain solid products through subsequent separation treatment, and recycle pure condensed water to realize water resource recycling.

[0003] The applicant searches related prior art, for example, the technical solution of patent No. CN217921531U, which adopts a simple batch kettle evaporation concentration method, contains high potassium perchlorate waste brine in an evaporation tank, provides an evaporation heat source by means of a heating mechanism, and uses a dynamic stirring mechanism for real-time stirring. After the high potassium perchlorate waste salt is completely concentrated and evaporated, the switch of the unloading pipe opening is opened, and the high potassium perchlorate waste salt is discharged for recycling; However, through in-depth analysis of the applicant, the prior art solution has obvious disadvantages: in the later stage of single-batch waste brine concentration and evaporation, as water continuously evaporates, the concentration of potassium chlorate and other salt substances gradually increases and forms crystals. These crystals will adhere to the stirring paddles in the evaporator in large quantities. As a key component for maintaining uniform mixing of materials and avoiding local overheating, the stirring paddles will have a large amount of salt crystals adhered to their surfaces, which will not only significantly reduce the stirring efficiency and prevent the material flow and water evaporation, but also form residues during the subsequent unloading process. The solid products adhered to the stirring paddles are difficult to completely remove, thereby increasing the cleaning time of the equipment and seriously restricting the continuous operation capacity and production efficiency of the device. Based on this, the application provides a potassium chlorate waste brine concentration and evaporation device and process that can reduce material residues on the stirring paddles in the equipment, improve the completeness of unloading, and improve the continuous operation efficiency of the device. SUMMARY

[0004] The purpose of the present application is to solve the technical problems in the prior art by providing a potassium chlorate waste brine concentration and evaporation device and process.

[0005] The purpose of the present application can be achieved by the following technical solutions: A potassium chlorate waste brine concentration and evaporation device, comprising: An evaporation tank, a feed pipe is communicated on the outer wall of the evaporation tank, an exhaust pipe is communicated at the top of the evaporation tank, a waste discharge pipe is communicated at the bottom of the evaporation tank, a heating cavity is formed in the outer wall of the evaporation tank, and a heating assembly is arranged in the heating cavity; A rotating plate is rotatably installed on the top wall of the evaporation tank, a servo motor is fixedly installed on the top of the evaporation tank, the output shaft of the servo motor is fixedly connected with the rotating shaft of the rotating plate, two first T-shaped rods are slidably installed on the rotating plate, the two first T-shaped rods penetrate through the rotating plate, and each first T-shaped rod is connected with the bottom of the rotating plate through a first spring, the pre-tightening force of the first spring makes the first T-shaped rod rise, and the bottom end of the two first T-shaped rods is fixedly installed with a stirring rod. A fixed box is fixedly installed on the rotating plate, a cam is rotatably installed on the fixed box, the cam is located between the stirring rod and the rotating plate, a transmission assembly is arranged on the fixed box, the transmission assembly is connected with the rotating plate and the cam, when the servo motor drives the rotating plate to rotate, the rotating plate drives the cam to rotate through the transmission assembly, when the cam approaches the stirring rod, the cam makes the stirring rod and the first T-shaped rod descend synchronously, when the cam rotates away from the stirring rod, the first spring makes the first T-shaped rod and the stirring rod rise synchronously, and at this time, the stirring rod strikes on the cam to vibrate.

[0006] As a further scheme of the present application, the transmission assembly comprises an inner gear ring, a transmission gear and a bevel gear assembly, the inner gear ring is fixedly installed on the inner wall of the evaporation tank, the transmission gear is rotatably installed on the rotating plate and is in mesh with the inner gear ring, and the bevel gear assembly is arranged in the fixed box and is connected with the transmission gear and the cam, when the rotating plate rotates, the transmission gear rotates around the inner gear ring, and the transmission gear drives the cam to rotate through the bevel gear assembly.

[0007] As a further scheme of the present application, two symmetrical L-shaped plates are fixedly installed on the rotating plate, one collision rod is slidably installed on each L-shaped plate, the collision rod moves along the radial direction of the stirring rod, and the two collision rods are driven to move towards each other by a driving assembly arranged on the rotating plate, when the two collision rods approach, the collision rods abut against the outer wall of the stirring rod.

[0008] As a further scheme of the present application, a plurality of equidistantly arranged semicircular scrapers are fixedly installed at the bottom end of each collision rod, when the two collision rods approach, the two semicircular scrapers wrap the outer wall of the bottom end of the stirring rod.

[0009] As a further scheme of the present application: the driving assembly comprises a second spring, a bevel, a lifting plate, a roller and a second T-shaped rod, each L-shaped plate is connected with the collision rod through the second spring, the pre-tightening force of the second spring makes the collision rod close to the stirring rod, a bevel is arranged at the top end of each collision rod, the horizontal height of one end of the bevel is lower than that of the other end, the distance between the lower end of the bevel and the axis of the stirring rod is greater than that between the higher end of the bevel and the axis of the stirring rod, the second T-shaped rod is slidingly installed on the rotating plate, the second T-shaped rod penetrates through the rotating plate, the lifting plate is fixedly connected with the bottom end of the second T-shaped rod, the lifting plate is located between the cam and the rotating plate, the bottom of the lifting plate abuts against the cam, two rollers are arranged on the lifting plate, the rollers are slidingly connected with the bevel, when the cam is close to the lifting plate, the lifting plate rises, at this time, the rollers slide along the bevel, so that the collision rod extrudes the second spring, at this time, the collision rod and the semicircular scraper are away from the stirring rod, when the cam rotates away from the lifting plate, the lifting plate descends, at this time, the second spring makes the collision rod close to the stirring rod.

[0010] As a further scheme of the present application: the driving assembly further comprises a third spring, the top of the lifting plate is connected with the bottom of the rotating plate through the third spring, the pre-tightening force of the third spring makes the lifting plate descend.

[0011] As a further scheme of the present application: the roller is rotatably installed on the lifting plate, and the roller is rollingly matched with the bevel.

[0012] A potassium chlorate waste brine concentration and evaporation process, the process is applied to a potassium chlorate waste brine concentration and evaporation device as described above, the process comprises the following steps: Step S1: first close the exhaust pipe and waste pipe, and open the feed pipe, through the feed pipe, the potassium chlorate waste brine is transported into the evaporation tank; Step S2: the heating assembly in the heating cavity is used to heat the evaporation tank, the temperature of the potassium chlorate waste brine is raised to the target evaporation temperature, and at the same time, the exhaust pipe is opened to exhaust the steam; Step S3: the servo motor is started to drive the rotating plate to rotate, the rotating plate rotation makes the stirring rod revolve, and the stirring rod is used to stir the potassium chlorate waste brine; Step S4: when the rotating plate rotates, the cam is driven to rotate through the transmission assembly, when the cam is close to the stirring rod, the cam makes the stirring rod and the first T-shaped rod descend synchronously, when the cam rotates away from the stirring rod, the first spring makes the first T-shaped rod and the stirring rod ascend synchronously, at this time, when the stirring rod moves upward, it will slightly collide with the cam to produce vibration, which can effectively prevent the salt crystals generated in the evaporation process of the potassium chlorate waste brine from adhering to the surface of the stirring rod, and the stirring rod makes a complex stirring track while making a circular motion, which can more fully stir the brine and further improve the evaporation efficiency; Step S5: After evaporation is completed, open the waste pipe to discharge the potassium chlorate evaporation residue in the evaporation tank, and complete the entire treatment process.

[0013] Advantages of the present application: 1、In the present application, the rotating plate is driven to rotate by a servo motor, which on the one hand drives the stirring rod to revolve to realize basic stirring, and on the other hand drives the cam to rotate through the transmission assembly, the cam periodically pushes the stirring rod up and down and makes it impact to produce vibration, and at the same time the driving assembly links the collision rod and the semicircular scraper close to the stirring rod to physically scrape, forming the triple effect of revolution stirring, up-and-down reciprocating vibration and outer wall scraping, which not only avoids local overheating of potassium chlorate waste brine leading to uneven crystallization, but also can destroy the adhesion of crystals by vibration and scrape off the loosened crystals, thus fundamentally solving the problem of crystal adhesion on the surface of the stirring rod and ensuring stable stirring efficiency. 2、In the present application, the transmission assembly realizes power conversion from revolution of the rotating plate to rotation of the transmission gear through meshing of the inner gear ring and the transmission gear, and then converts horizontal rotation to vertical rotation of the cam through the bevel gear assembly, and the driving assembly drives the lifting plate to lift through rotation of the cam, and converts vertical movement to radial movement of the collision rod through rolling cooperation of the roller and the oblique edge, so that the whole power transmission process does not need an additional independent power source, but only relies on single power of the servo motor for driving, and multiple components work cooperatively to simplify the device structure, reduce energy consumption, and at the same time, the movement rhythm of each component is accurately matched to ensure continuous and efficient operation of the anti-crystal adhesion function. 3、In the present application, the opposite movement of the collision rod and the semicircular scraper can wrap the outer wall of the bottom end of the stirring rod, and specifically process the bottom end area of the stirring rod which is most prone to crystal adhesion during evaporation, and the vibration generated when the collision rod abuts against the stirring rod can not only assist in removing the crystal on the surface of the stirring rod, but also prevent the collision rod and the semicircular scraper from adhering crystals themselves, and at the same time, the radial movement of the collision rod can further disturb the potassium chlorate waste brine to enhance the stirring effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present application will be further described below with reference to the accompanying drawings.

[0015] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the structure of the evaporation tank in the present application; Figure 3 is a schematic diagram of the structure of the rotating plate in the present application; Figure 4 is a schematic diagram of the structure of the stirring rod in the present application; Figure 5 is a schematic diagram of the structure of the driving assembly in the present application; Figure 4 is a schematic diagram of the structure of part A in the present application; Figure 6 is a schematic diagram of the structure of the cam close to the lifting plate in the present application; Figure 7 is a structural schematic diagram of the cam turning away from the lifting plate in the application; Figure 8 is a structural schematic diagram of the cam close to the stirring rod in the application; Figure 9 is a structural schematic diagram of the cam turning away from the stirring rod in the application.

[0016] In the figure: 1, evaporation tank; 2, feed pipe; 3, heating cavity; 4, exhaust pipe; 5, waste pipe; 6, rotating plate; 7, servo motor; 8, stirring rod; 9, inner gear ring; 10, transmission gear; 11, fixed box; 12, cam; 13, first T-shaped rod; 14, first spring; 15, collision rod; 16, L-shaped plate; 17, second spring; 18, bevel; 19, lifting plate; 20, roller; 21, second T-shaped rod; 22, third spring; 23, semicircular scraper. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0018] Please refer to Figures 1-9 The application is a potassium chlorate waste brine concentration and evaporation device, which comprises: An evaporation tank 1, a feed pipe 2 is communicated on the outer wall of the evaporation tank 1, an exhaust pipe 4 is communicated at the top of the evaporation tank 1, a waste pipe 5 is communicated at the bottom of the evaporation tank 1, a heating cavity 3 is formed on the outer wall of the evaporation tank 1, and a heating assembly is arranged in the heating cavity 3; A rotating plate 6 is rotationally installed on the top wall of the evaporation tank 1, a servo motor 7 is fixedly installed at the top of the evaporation tank 1, the output shaft of the servo motor 7 is fixedly connected with the rotating shaft of the rotating plate 6, two first T-shaped rods 13 are slidingly installed on the rotating plate 6, the two first T-shaped rods 13 penetrate through the rotating plate 6, and each first T-shaped rod 13 is connected with the bottom of the rotating plate 6 through a first spring 14, the pre-tightening force of the first spring 14 makes the first T-shaped rod 13 rise, and the bottom end of each first T-shaped rod 13 is fixedly installed with a stirring rod 8; A fixed box 11 is fixedly installed on a rotating plate 6. A cam 12 is rotatably mounted on the fixed box 11. The cam 12 is located between the stirring rod 8 and the rotating plate 6. A transmission assembly is provided on the fixed box 11. The transmission assembly is connected to the rotating plate 6 and the cam 12. When the servo motor 7 drives the rotating plate 6 to rotate, the rotating plate 6 drives the cam 12 to rotate through the transmission assembly. When the cam 12 approaches the stirring rod 8, the cam 12 causes the stirring rod 8 and the first T-shaped rod 13 to descend synchronously. When the cam 12 rotates away from the stirring rod 8, the first spring 14 causes the first T-shaped rod 13 and the stirring rod 8 to rise synchronously. At this time, the stirring rod 8 strikes the cam 12 and vibrates.

[0019] In one embodiment, the heating component in the heating chamber 3 can be a jacketed heat transfer medium, such as saturated steam or heat transfer oil, or an electric heating wire can be directly embedded in the heating chamber 3. The feed pipe 2 is used to transport potassium chlorate waste brine into the evaporator 1. The exhaust pipe 4 is used to discharge steam from the evaporator 1. The exhaust pipe 4 can be connected to an external condensation component to condense the steam into water for easy collection. The waste discharge pipe 5 is used to discharge the concentrated crystals from the evaporator 1. It should be noted that the servo motor 7 described in this invention is prior art. This invention does not improve upon it. Therefore, it is not necessary to disclose its specific mechanical and circuit structures, and this does not affect the integrity of this invention.

[0020] The working principle of this invention is as follows: First, potassium chlorate waste brine is transported to the evaporator 1 through the feed pipe 2. Then, the heating component in the heating chamber 3 is activated to heat the brine in the evaporator 1 to the target evaporation temperature. The steam generated by evaporation is discharged through the exhaust pipe 4. At the same time, the servo motor 7 is activated and drives the rotating plate 6 to rotate around its own axis. During the rotation of the rotating plate 6, on the one hand, the first T-shaped rod 13 drives the stirring rod 8 to make a circular motion, that is, the stirring rod 8 revolves, stirring the brine in the evaporator 1 to avoid local overheating and uneven crystallization; on the other hand, the rotating plate 6 drives the cam 12 to rotate synchronously through the transmission component, such as... Figures 6-9As shown in the example, when the cam 12 rotates to a position close to the stirring rod 8, the cam 12 exerts a downward thrust on the stirring rod 8, forcing the stirring rod 8 to drive the first T-shaped rod 13 to overcome the preload of the first spring 14 and descend axially along the rotating plate 6. When the cam 12 continues to rotate and moves away from the stirring rod 8, the thrust of the cam 12 on the stirring rod 8 disappears, the preload of the first spring 14 is released, and the first T-shaped rod 13 is pulled to drive the stirring rod 8 to rise axially along the rotating plate 6. As the cam 12 continues to rotate, the stirring rod 8 will collide with the cam 12 and generate vibration during its ascent. This vibration can promptly shake off the salt crystals attached to the surface of the stirring rod 8, solving the crystal adhesion problem from the root and preventing the evaporation crystals from adhering to the stirring rod 8. At the same time, the stirring rod 8, based on its revolution, superimposes the up-and-down reciprocating motion to form a complex stirring trajectory, further improving the uniformity of the brine heating and accelerating the evaporation process.

[0021] It should be noted that a crash plate can also be fixedly installed at the bottom of the rotating plate 6, so that when the stirring rod 8 rises, it hits the crash plate and vibrates, thereby protecting the cam 12.

[0022] like Figures 1-5 As shown, in a preferred embodiment of the present invention, the transmission assembly includes an internal gear ring 9, a transmission gear 10, and a bevel gear assembly. The internal gear ring 9 is fixedly installed on the inner wall of the evaporator 1. The transmission gear 10 is rotatably installed on the rotating plate 6 and meshes with the internal gear ring 9. The bevel gear assembly is disposed in the fixed box 11 and is connected to the transmission gear 10 and the cam 12. When the rotating plate 6 rotates, the transmission gear 10 rotates under the action of the internal gear ring 9, and the transmission gear 10 drives the cam 12 to rotate through the bevel gear assembly.

[0023] In one embodiment, it should be noted that the bevel gear assembly of the present invention includes a first bevel gear and a second bevel gear. The axis of the first bevel gear and the axis of the second bevel gear are perpendicular. The first bevel gear is coaxially fixedly connected to 10, and the second bevel gear is coaxially fixedly connected to cam 12. The first bevel gear and the second bevel gear mesh. The above components are all prior art, and the present invention does not improve them. Therefore, it is not necessary to disclose their specific mechanical structure and circuit structure, and this does not affect the integrity of the present invention.

[0024] In practical application, when the servo motor 7 drives the rotating plate 6 to rotate around the central axis of the evaporator 1, the rotating plate 6 drives the transmission gear 10 to perform synchronous circular motion. Since the transmission gear 10 meshes with the internal gear ring 9 fixedly installed on the inner wall of the evaporator 1, the transmission gear 10 will be subjected to the tooth surface force of the internal gear ring 9 during the circular motion, thereby generating rotation around its own axis. When the transmission gear 10 rotates, it drives the first bevel gear connected coaxially to rotate. The first bevel gear, through meshing with the second bevel gear, converts its own horizontal rotational motion into the vertical rotational motion of the second bevel gear, thereby driving the cam 12, which is coaxially connected with the second bevel gear, to rotate around the mounting shaft on the fixed box 11. This transmission component realizes the power conversion from revolution to rotation through the meshing of the internal gear ring 9 and the transmission gear 10, and then realizes the direction conversion from horizontal rotation to vertical rotation through the bevel gear component. Finally, it ensures that the cam 12 can rotate synchronously when the rotating plate 6 rotates, providing stable power for the up-and-down reciprocating motion and vibration of the stirring rod 8, and ensuring the continuous operation of the anti-crystal adhesion function during the evaporation process.

[0025] like Figures 1-7 As shown, in a preferred embodiment of the present invention, two symmetrically arranged L-shaped plates 16 are fixedly installed on the rotating plate 6. Each L-shaped plate 16 is slidably installed with a collision rod 15. The collision rod 15 moves radially along the stirring rod 8. The two collision rods 15 are driven to move towards each other by a driving assembly provided on the rotating plate 6. When the two collision rods 15 approach each other, the collision rods 15 abut against the outer wall of the stirring rod 8.

[0026] Specifically, each of the collision rods 15 is fixedly installed with a plurality of equally spaced semi-circular scrapers 23 at the bottom end. When two collision rods 15 approach each other, the two semi-circular scrapers 23 wrap around the outer wall of the bottom end of the stirring rod 8.

[0027] In practical application, when the stirring rod 8 reciprocates up and down due to the action of the cam 12 and vibrates, the drive assembly synchronously drives the two collision rods 15 to move towards or away from each other along the L-shaped plate 16. When the collision rods 15 move towards each other, the collision rods 15 drive the semi-circular scraper 23 to gradually approach and wrap around the bottom outer wall of the stirring rod 8. With the cooperation of the vibration of the stirring rod 8, the semi-circular scraper 23 can physically scrape off the salt crystals attached to the outer wall of the stirring rod 8, avoiding crystal accumulation. When the collision rods 15 abut against the outer wall of the stirring rod 8, they will cause the stirring rod 8 to vibrate. At the same time, the collision rods 15 themselves will also be vibrated. Therefore, the vibration can also prevent the evaporation crystals from adhering to the collision rods 15 and the semi-circular scraper 23. More importantly, the towards or away movement of the two collision rods 15 can further stir the brine, thereby improving the stirring effect. like Figure 6As shown in the example, the semi-circular scraper 23 is installed at the bottom of the collision rod 15, that is, at the bottom of the stirring rod 8. During the evaporation process, the bottom of the stirring rod 8 is also the position most easily affected by evaporation crystals. Therefore, through the coordinated movement of the collision rod 15 and the semi-circular scraper 23, a dual anti-crystallization adhesion mechanism is formed, which combines vibration and physical scraping of the stirring rod 8, further improving the surface cleanliness of the stirring rod 8.

[0028] like Figures 1-9 As shown, in a preferred embodiment of the present invention, the driving assembly includes a second spring 17, an inclined side 18, a lifting plate 19, a roller 20, and a second T-shaped rod 21. Each L-shaped plate 16 is connected to the collision rod 15 via the second spring 17. The preload of the second spring 17 causes the collision rod 15 to approach the stirring rod 8. Each collision rod 15 has an inclined side 18 at its top. The distance between the lower horizontal end of the inclined side 18 and the axis of the stirring rod 8 is greater than the distance between the higher horizontal end of the inclined side 18 and the axis of the stirring rod 8. The second T-shaped rod 21 is slidably mounted on the rotating plate 6 and passes through the rotating plate 6. The lifting plate 19 is fixedly connected to the bottom end of the second T-shaped rod 21. The lifting plate 19 is located between the cam 12 and the rotating plate 6. The bottom of the lifting plate 19 abuts against the cam 12. Two rollers 20 are both set on the lifting plate 19. The rollers 20 are slidably connected to the inclined side 18. When the cam 12 approaches the lifting plate 19, the lifting plate 19 rises. At this time, the rollers 20 slide along the inclined side 18, causing the collision rod 15 to squeeze the second spring 17. At this time, the collision rod 15 and the semi-circular scraper 23 move away from the stirring rod 8. When the cam 12 rotates away from the lifting plate 19, the lifting plate 19 falls. At this time, the second spring 17 causes the collision rod 15 to approach the stirring rod 8.

[0029] Specifically, the drive assembly also includes a third spring 22. The top of the lifting plate 19 is connected to the bottom of the rotating plate 6 via the third spring 22. The preload of the third spring 22 causes the lifting plate 19 to descend.

[0030] Specifically, the roller 20 is rotatably mounted on the lifting plate 19, and the roller 20 is in rolling cooperation with the inclined side 18.

[0031] In practical application, during the rotation of the cam 12, it periodically contacts and pushes the lifting plate 19 upward, and then the third spring 22 pushes the lifting plate 19 downward, realizing the up-and-down reciprocating motion of the lifting plate 19. The up-and-down motion of the lifting plate 19 is converted into the radial motion of the collision rod 15 along the L-shaped plate 16 through the rolling cooperation of the roller 20 and the inclined side 18. This causes the collision rod 15 and the semi-circular scraper 23 to move closer to or away from the stirring rod 8. When the stirring rod 8 vibrates due to the collision with the cam 12, the semi-circular scraper 23 is just close to the stirring rod 8 and scrapes its outer wall. The vibration can destroy the adhesion between the crystals and the stirring rod 8, and the scraping can completely remove the loosened crystals. The two work together to form an efficient anti-crystallization adhesion mechanism. More importantly, the process of the cam 12 driving the stirring rod 8 to rise and fall is as follows: Figure 6 As shown in the example, at this time, the collision rod 15 and the semi-circular scraper 23 are far away from the stirring rod 8, and the stirring rod 8 is at its highest point. When the cam 12 rotates 90 degrees counterclockwise, that is, the cam 12 rotates away from the lifting plate 19, as shown in the example, Figure 7 As shown in the example, at this time, the collision rod 15 and the semi-circular scraper 23 will abut against the stirring rod 8. During this process, the stirring rod 8 remains stationary and will not rise or fall. When the collision rod 15 and the semi-circular scraper 23 abut against the stirring rod 8, vibration will occur. At this time, the two semi-circular scrapers 23 will also cover the bottom of the stirring rod 8. When the cam 12 continues to rotate counterclockwise by ninety degrees, that is, when the cam 12 approaches the stirring rod 8, as shown in the example, Figure 8 As shown in the example, the stirring rod 8 will descend at this time, and the semi-circular scraper 23 will physically scrape the surface of the stirring rod 8. When the cam 12 continues to rotate counterclockwise by ninety degrees, that is, the cam 12 rotates away from the stirring rod 8, as shown in the example, Figure 9 As shown in the example, at this time, the stirring rod 8 will rise and strike the cam 12 to generate vibration. At the same time, the semi-circular scraper 23 will also physically scrape the outer wall of the stirring rod 8 from bottom to top. In this way, measures are taken at each stage to prevent crystal adhesion, forming an efficient and continuous anti-crystallization adhesion mechanism to ensure that the stirring rod 8 is always clean and to maintain the stable stirring and evaporation efficiency of the device.

[0032] The preload of the third spring 22 can accelerate the descent and reset speed of the lifting plate 19, ensuring a smoother sliding fit between the roller 20 and the inclined side 18, thereby ensuring that the movement rhythm of the collision rod 15 and the semi-circular scraper 23 matches the up-and-down reciprocating movement rhythm of the stirring rod 8.

[0033] The rolling cooperation between the roller 20 and the inclined side 18 can reduce the frictional resistance between the roller 20 and the inclined side 18, avoid the collision rod 15 from getting stuck due to excessive friction, ensure the smooth operation of the drive component, and thus ensure the stable scraping effect of the semi-circular scraper 23 on the outer wall of the stirring rod 8.

[0034] Please see Figures 1-9As shown, this invention is a potassium chlorate waste brine concentration and evaporation process. The process is applied to a potassium chlorate waste brine concentration and evaporation device as described in the above embodiments, and includes the following steps: Step S1: First, close the exhaust pipe 4 and the waste discharge pipe 5, and open the feed pipe 2 to transport the potassium chlorate waste brine into the evaporator 1 through the feed pipe 2; Step S2: The evaporator 1 is heated by the heating components in the heating chamber 3 to raise the temperature of the potassium chlorate waste brine to the target evaporation temperature, and the exhaust pipe 4 is opened to discharge the steam. Step S3: Start the servo motor 7 to drive the rotating plate 6 to rotate. The rotation of the rotating plate 6 causes the stirring rod 8 to revolve, and the potassium chlorate waste brine is stirred by the stirring rod 8. Step S4: When the rotating plate 6 rotates, it drives the cam 12 to rotate through the transmission assembly. When the cam 12 approaches the stirring rod 8, the cam 12 causes the stirring rod 8 and the first T-shaped rod 13 to descend synchronously. When the cam 12 rotates away from the stirring rod 8, the first spring 14 causes the first T-shaped rod 13 and the stirring rod 8 to rise synchronously. At this time, when the stirring rod 8 moves upward, it will slightly collide with the cam 12 to generate vibration, which can effectively prevent the salt crystals generated during the evaporation of potassium chlorate waste brine from adhering to the surface of the stirring rod 8. In addition, the stirring rod 8 moves up and down while making circular motion, forming a complex stirring trajectory, which can more fully stir the brine and further improve the evaporation efficiency. Step S5: After evaporation is complete, open the waste discharge pipe 5 to discharge the potassium chlorate evaporation residue in the evaporation tank 1, thus completing the entire treatment process.

[0035] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A potassium chlorate waste brine concentration and evaporation device, characterized in that, include: An evaporator (1) is provided with a feed pipe (2) connected to the outer wall of the evaporator (1), an exhaust pipe (4) connected to the top of the evaporator (1), a waste discharge pipe (5) connected to the bottom of the evaporator (1), a heating chamber (3) opened on the outer wall of the evaporator (1), and a heating component is provided in the heating chamber (3). A rotating plate (6) is rotatably mounted on the top wall of an evaporator (1). A servo motor (7) is fixedly mounted on the top of the evaporator (1). The output shaft of the servo motor (7) is fixedly connected to the rotating shaft of the rotating plate (6). Two first T-shaped rods (13) are slidably mounted on the rotating plate (6). Both first T-shaped rods (13) penetrate the rotating plate (6). Each first T-shaped rod (13) is connected to the bottom of the rotating plate (6) through a first spring (14). The preload of the first spring (14) causes the first T-shaped rod (13) to rise. A stirring rod (8) is fixedly mounted at the bottom of the two first T-shaped rods (13). A fixed box (11) is fixedly installed on a rotating plate (6). A cam (12) is rotatably installed on the fixed box (11). The cam (12) is located between the stirring rod (8) and the rotating plate (6). A transmission assembly is provided on the fixed box (11). The transmission assembly is connected to the rotating plate (6) and the cam (12). When the servo motor (7) drives the rotating plate (6) to rotate, the rotating plate (6) drives the cam (12) to rotate through the transmission assembly. When the cam (12) approaches the stirring rod (8), the cam (12) causes the stirring rod (8) and the first T-shaped rod (13) to descend synchronously. When the cam (12) moves away from the stirring rod (8), the first spring (14) causes the first T-shaped rod (13) and the stirring rod (8) to rise synchronously. At this time, the stirring rod (8) hits the cam (12) and vibrates.

2. The potassium chlorate waste brine concentration and evaporation device according to claim 1, characterized in that, The transmission assembly includes an internal gear ring (9), a transmission gear (10), and a bevel gear assembly. The internal gear ring (9) is fixedly installed on the inner wall of the evaporator (1). The transmission gear (10) is rotatably installed on the rotating plate (6) and meshes with the internal gear ring (9). The bevel gear assembly is set in the fixed box (11) and is connected to the transmission gear (10) and the cam (12). When the rotating plate (6) rotates, the transmission gear (10) rotates under the action of the internal gear ring (9). The transmission gear (10) drives the cam (12) to rotate through the bevel gear assembly.

3. The potassium chlorate waste brine concentration and evaporation device according to claim 1, characterized in that, Two symmetrically arranged L-shaped plates (16) are fixedly installed on the rotating plate (6). Each L-shaped plate (16) has a collision rod (15) slidably installed on it. The collision rod (15) moves radially along the stirring rod (8). The two collision rods (15) are driven to move towards each other by a drive assembly set on the rotating plate (6). When the two collision rods (15) approach each other, the collision rods (15) abut against the outer wall of the stirring rod (8).

4. The potassium chlorate waste brine concentration and evaporation device according to claim 3, characterized in that, Each of the collision rods (15) has a number of equally spaced semi-circular scrapers (23) fixedly installed at the bottom end. When two collision rods (15) approach each other, the two semi-circular scrapers (23) wrap around the outer wall of the bottom end of the stirring rod (8).

5. The potassium chlorate waste brine concentration and evaporation device according to claim 4, characterized in that, The drive assembly includes a second spring (17), an inclined side (18), a lifting plate (19), a roller (20), and a second T-shaped rod (21). Each L-shaped plate (16) is connected to the collision rod (15) via the second spring (17). The preload of the second spring (17) causes the collision rod (15) to approach the stirring rod (8). Each collision rod (15) has an inclined side (18) at its top. The distance between the lower horizontal end of the inclined side (18) and the axis of the stirring rod (8) is greater than the distance between the higher horizontal end of the inclined side (18) and the axis of the stirring rod (8). The second T-shaped rod (21) is slidably mounted on the rotating plate (6) and passes through the rotating plate (6). The lifting plate (19) and the second T-shaped rod (21) are connected by a second T-shaped rod (21). The bottom end of the rod (21) is fixedly connected. The lifting plate (19) is located between the cam (12) and the rotating plate (6). The bottom of the lifting plate (19) abuts against the cam (12). Two rollers (20) are set on the lifting plate (19). The rollers (20) are slidably connected to the inclined side (18). When the cam (12) approaches the lifting plate (19), the lifting plate (19) rises. At this time, the rollers (20) slide along the inclined side (18), so that the collision rod (15) squeezes the second spring (17). At this time, the collision rod (15) and the semi-circular scraper (23) move away from the stirring rod (8). When the cam (12) rotates away from the lifting plate (19), the lifting plate (19) falls. At this time, the second spring (17) makes the collision rod (15) approach the stirring rod (8).

6. The potassium chlorate waste brine concentration and evaporation device according to claim 5, characterized in that, The drive assembly also includes a third spring (22), the top of the lifting plate (19) is connected to the bottom of the rotating plate (6) through the third spring (22), and the preload of the third spring (22) causes the lifting plate (19) to descend.

7. The potassium chlorate waste brine concentration and evaporation device according to claim 5, characterized in that, The roller (20) is rotatably mounted on the lifting plate (19), and the roller (20) rolls in cooperation with the inclined side (18).

8. A process for concentrating and evaporating potassium chlorate waste brine, characterized in that, The process is applied to a potassium chlorate waste brine concentration and evaporation device as described in any one of claims 1-7, and the process includes the following steps: Step S1: First, close the exhaust pipe (4) and waste discharge pipe (5), and open the feed pipe (2) to transport potassium chlorate waste brine into the evaporator (1) through the feed pipe (2); Step S2: Heat the evaporator (1) through the heating components in the heating chamber (3) to raise the temperature of the potassium chlorate waste brine to the target evaporation temperature, and at the same time open the exhaust pipe (4) to discharge the steam; Step S3: Start the servo motor (7) to drive the rotating plate (6) to rotate. The rotation of the rotating plate (6) causes the stirring rod (8) to revolve. The potassium chlorate waste brine is stirred by the stirring rod (8). Step S4: When the rotating plate (6) rotates, it drives the cam (12) to rotate through the transmission assembly. When the cam (12) approaches the stirring rod (8), the cam (12) causes the stirring rod (8) and the first T-shaped rod (13) to descend synchronously. When the cam (12) moves away from the stirring rod (8), the first spring (14) causes the first T-shaped rod (13) and the stirring rod (8) to rise synchronously. At this time, when the stirring rod (8) moves upward, it will slightly collide with the cam (12) to generate vibration, which can effectively prevent the salt crystals generated during the evaporation of potassium chlorate waste brine from adhering to the surface of the stirring rod (8). In addition, the stirring rod (8) moves up and down while making circular motion, forming a complex stirring trajectory, which can more fully stir the brine and further improve the evaporation efficiency. Step S5: After evaporation is complete, open the waste discharge pipe (5) to discharge the potassium chlorate evaporation residue in the evaporator (1) and complete the entire treatment process.

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