Efficient drying device for anhydrous potassium chloride

Abstract

The utility model relates to the technical field of anhydrous potassium chloride drying, in particular to an efficient anhydrous potassium chloride drying device which comprises a supporting platform, vertical seats are symmetrically and fixedly installed on the two sides of the top of the supporting platform, and a first drying unit and a second drying unit are arranged between the two vertical seats at intervals from top to bottom. The left end of the first drying unit is connected with the left end of the second drying unit through a transition pipe fitting, a feeding pipe set is installed at the left end of the first drying unit, a discharging pipe set is installed at the left end of the second drying unit, and a scraping driving part is installed between the first drying unit and the second drying unit. A double-drying-unit structure is adopted, namely, the first drying unit and the second drying unit work in a matched mode. Materials sequentially pass through the two drying units, the drying path is prolonged, the drying time is prolonged, the contact duration of the materials and drying media is prolonged, the materials are dried more sufficiently, the drying effect is improved, and the production requirement can be better met.

Description

Technical Field

[0001] This utility model relates to the field of anhydrous potassium chloride drying technology, and in particular to an efficient anhydrous potassium chloride drying device. Background Technology

[0002] Anhydrous potassium chloride is hygroscopic and easily absorbs moisture from the air, causing it to deliquesce. Deliquescent potassium chloride will form clumps, affecting not only its appearance and flowability but also its purity, thus impacting its performance in various applications.

[0003] In certain chemical industrial production processes, such as the electrolytic production of metallic potassium and the preparation of potassium salts, dry anhydrous potassium chloride is required to ensure the smooth progress of the reaction and the quality of the product. Therefore, potassium chloride generally needs to be dried before use.

[0004] In existing technologies, potassium chloride is often dried using an airflow dryer, which typically consists of an air preheating chamber, a fluidized bed, a piping system, a cyclone separator, and a pulse-jet bag filter.

[0005] For example, an environmentally friendly airflow dryer disclosed in patent application number CN202223260390.5 has a main structure including a dryer body, a control panel on the front surface of the dryer body, a filter device on one side of the dryer body, an air inlet at the bottom of the filter device, a fan on one side of the air inlet, a filter screen inside the filter device, a slide groove on one side of the filter screen, a filter plate above the filter screen, and a heating box above the filter plate.

[0006] However, the aforementioned airflow dryer has the following drawbacks after prolonged use:

[0007] First, the filter plates at the bottom of the fluidized bed are easily clogged, reducing the speed of hot air circulation and affecting work efficiency.

[0008] Secondly, it is relatively difficult to clean after a blockage.

[0009] Based on this, it can be seen that there are obvious shortcomings in the existing technology for drying anhydrous potassium chloride. Therefore, it is necessary to design a device that is efficient in drying anhydrous potassium chloride and is easy to clean. Utility Model Content

[0010] To solve one of the aforementioned technical problems, the present invention employs the following technical solution: an anhydrous potassium chloride high-efficiency drying device, comprising a support platform, on which uprights are symmetrically fixedly installed on both sides of the top of the support platform. A first drying unit and a second drying unit are respectively arranged at intervals from top to bottom between the two uprights. The left ends of the first drying unit and the second drying unit are connected by transition pipe fittings. A feed pipe assembly is installed at the left end of the first drying unit, and a discharge pipe assembly is installed at the left end of the second drying unit. The feed end of the feed pipe assembly is connected to an external Roots blower, and the discharge end of the discharge pipe assembly is connected to an external conveying pipeline. A scraping drive is installed between the first drying unit and the second drying unit, and the scraping drive is used to scrape the inner walls of the first drying unit and the second drying unit.

[0011] Based on any of the above technical solutions, a further optimization is made as follows: the first drying unit includes a horizontally arranged first electric heating drying cylinder, both the left and right ends of the first electric heating drying cylinder are fixedly installed on the corresponding uprights, the left end of the first electric heating drying cylinder is connected to the top of the transition pipe, the right end of the first electric heating drying cylinder is connected to the top of the feed pipe assembly, and a first scraper is coaxially installed in the internal cylindrical cavity of the first electric heating drying cylinder.

[0012] Based on any of the above technical solutions, the following further optimization is made: the first scraper includes two relatively spaced and coaxially fitted first scraping iron rings installed in the inner cylindrical cavity. The outer wall of the scraping iron ring abuts against the inner wall of the inner cylindrical cavity and can be displaced along the axial direction of the inner cylindrical cavity under the action of external force. The first electric heating drying cylinder is made of stainless steel.

[0013] Based on any of the above technical solutions, the following further optimization is made: the second drying unit includes a horizontally arranged second electric heating drying cylinder, both the left and right ends of the second electric heating drying cylinder are fixedly installed on the corresponding uprights, the left end of the second electric heating drying cylinder is connected to the bottom of the transition pipe, the right end of the second electric heating drying cylinder is connected to the top of the discharge pipe assembly, and a second scraper is coaxially installed in the inner cylindrical cavity of the second electric heating drying cylinder.

[0014] Based on any of the above technical solutions, a further optimization is made as follows: the second scraper includes two relatively spaced and coaxially fitted second scraping iron rings installed in the inner cylindrical cavity. The outer wall of the second scraping iron ring abuts against the inner wall of the inner cylindrical cavity and can be displaced along the axial direction of the inner cylindrical cavity under the action of external force. The second electric heating drying cylinder is made of stainless steel.

[0015] Based on any of the above technical solutions, a further optimization is made by installing a control valve on the transition pipe fitting.

[0016] Based on any of the above technical solutions, a further optimization is made as follows: the scraping drive component includes a horizontally arranged bidirectional lead screw, the two ends of which respectively extend through stepped shafts at their ends to the outer side of the corresponding support. A drive motor for driving the bidirectional lead screw to rotate is fixedly installed on the outer wall of the left side of the support. The external threads on both sides of the middle of the bidirectional lead screw have opposite directions of rotation. Slides are symmetrically screwed into the outer walls of the external threads on the left and right sides of the bidirectional lead screw. A first strong magnetic ring and a second strong magnetic ring are movably sleeved on the outer walls of the first electric heating drying cylinder and the second electric heating drying cylinder at the top and bottom of each slide, respectively. The slides are fixedly connected to the corresponding first strong magnetic ring and second strong magnetic ring through a vertical shaft.

[0017] Based on any of the above technical solutions, a further optimization is made: when the drive motor drives the bidirectional lead screw to rotate, it can drive the two slides to move away from or towards each other, thereby driving the two oppositely arranged first strong magnetic rings or the two oppositely arranged second strong magnetic rings to move closer or further away from each other along the horizontal axis. During the movement of the first strong magnetic rings and the second strong magnetic rings, the corresponding first scraping iron rings and the second scraping iron rings can be driven to shift axially in the inner cylindrical cavity, thereby completing the scraping of potassium chloride clumps adhering to the inner wall of the inner cylindrical cavity. The scraped clumps are then transported outward with the high-speed hot air supplied by the external Roots blower.

[0018] Based on any of the above technical solutions, a further optimization is made as follows: the central face of the first scraping iron ring is coplanar with the central face of the first strong magnetic ring; the central face of the second scraping iron ring is coplanar with the central face of the second strong magnetic ring.

[0019] Based on any of the above technical solutions, a further optimization is made by installing a discharge valve on the discharge pipe assembly and a feed valve on the feed pipe assembly.

[0020] Based on any of the above technical solutions, a further optimization is made as follows: a first flushing pipe joint connected to the interior is installed on both sides of the bottom of the first electric heating drying cylinder, and a second flushing pipe joint connected to the interior is installed on both sides of the bottom of the second electric heating drying cylinder. Both the first flushing pipe joint and the second flushing pipe joint are equipped with an on / off valve. In the working state, both the first flushing pipe joint and the second flushing pipe joint are connected to an external water pipe with a pump.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. This utility model adopts a dual drying unit design, that is, the first drying unit and the second drying unit work together. The material passes through the two drying units in sequence, which extends the drying path and time, increases the contact time between the material and the drying medium, thereby improving drying efficiency, making the material dry more thoroughly, and improving the drying effect. Compared with a single drying unit device, it can better meet production needs.

[0023] 2. The support platform of this utility model provides a stable bottom support for the entire device. The uprights are symmetrically fixed on both sides of the top of the support platform, firmly supporting components such as the first drying unit and the second drying unit. This structure enhances the overall stability of the device, enabling it to resist vibration and external interference during operation, ensuring smooth drying operations and reducing the risk of equipment failure.

[0024] 3. The scraping drive component of this utility model has multiple and practical functions. On the one hand, it can scrape the inner walls of the first and second drying units during operation, effectively preventing the material from clumping due to prolonged adhesion to the cylinder wall, ensuring unobstructed internal space of the drying units, and maintaining the normal drying process. On the other hand, by adjusting the scraping frequency, it can also optimize the material flow state, enhance the drying effect, and ensure the stability of product quality.

[0025] 4. This utility model installs a discharge valve and a feed valve on the discharge pipe assembly and the feed pipe assembly respectively, achieving precise control over the material's entry and exit. Operators can flexibly adjust the feed valve to control the amount of material entering according to the drying process requirements, ensuring uniform material distribution within the drying unit and avoiding excessive or insufficient material affecting the drying effect. Simultaneously, the discharge valve controls the material output speed after drying, ensuring stable material quantity throughout the drying process, improving drying efficiency and product quality, and enhancing the applicability and controllability of the device. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0029] Figure 3 This is a partial internal cross-sectional view of the present invention.

[0030] Figure 4 This is a schematic diagram of the structure of the first scraper of this utility model.

[0031] Figure 5 This is a schematic diagram of the structure of the second scraper of this utility model.

[0032] In the diagram: 1. Support platform; 2. Stand; 3. Transition pipe fitting; 4. Feed pipe assembly; 5. Discharge pipe assembly; 6. First electric heating drying cylinder; 7. First scraper ring; 8. Second electric heating drying cylinder; 9. Second scraper ring; 10. Control valve; 11. Bidirectional lead screw; 12. Drive motor; 13. Slide; 14. First strong magnetic ring; 15. Second strong magnetic ring; 16. Vertical shaft; 17. Discharge valve; 18. Feed valve; 19. First flushing pipe joint; 20. Second flushing pipe joint. Detailed Implementation

[0033] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be construed as limiting the scope of protection of the present utility model. The specific structure of the present utility model is as follows: Figures 1-5 As shown in the image.

[0034] Example 1: An anhydrous potassium chloride high-efficiency drying device includes a support platform 1. Stands 2 are symmetrically fixed on both sides of the top of the support platform 1. A first drying unit and a second drying unit are respectively arranged at intervals from top to bottom between the two stands 2. The left ends of the first drying unit and the second drying unit are connected by a transition pipe 3. A feed pipe assembly 4 is installed at the left end of the first drying unit, and a discharge pipe assembly 5 is installed at the left end of the second drying unit. The feed end of the feed pipe assembly 4 is connected to an external Roots blower, and the discharge end of the discharge pipe assembly 5 is connected to an external conveying pipeline. A scraping drive is installed between the first drying unit and the second drying unit, and the scraping drive is used to scrape the inner walls of the first drying unit and the second drying unit.

[0035] The Roots blower feeds the material to be dried into the first drying unit through the feed pipe assembly 4. After drying in the first and second drying units, the material is conveyed to the external conveying pipeline through the discharge pipe assembly 5. The scraper drive is responsible for cleaning any material that may adhere to the inner walls of the two drying units.

[0036] The dual drying unit design increases drying efficiency and effectiveness; the structural design of the support platform 1 and the stand 2 ensures the stability of the entire device; and the scraper drive effectively prevents material from clumping on the inner wall of the drying unit, ensuring the smooth progress of the drying process.

[0037] The support platform 1 and the stand 2 support the entire device; the first drying unit and the second drying unit are the core components for drying materials; the transition pipe 3 connects the two drying units to ensure smooth material transfer; the feed pipe group 4 and the discharge pipe group 5 are responsible for the input and output of materials, respectively; and the scraper drive maintains the internal cleanliness of the drying unit.

[0038] The scraping drive can influence the material flow state within the drying unit by adjusting the scraping frequency during device operation, thereby optimizing the drying effect.

[0039] Based on any of the above technical solutions, the following further optimization is made: the first drying unit includes a horizontally arranged first electric heating drying cylinder 6, both the left and right ends of the first electric heating drying cylinder 6 are fixedly installed on the corresponding uprights 2, the left end of the first electric heating drying cylinder 6 is connected to the top of the transition pipe 3, the right end of the first electric heating drying cylinder 6 is connected to the top of the feed pipe assembly 4, and a first scraper is coaxially installed in the internal cylindrical cavity of the first electric heating drying cylinder 6.

[0040] The material enters the first electrically heated drying cylinder 6 through the feed pipe assembly 4 and undergoes drying treatment inside the first electrically heated drying cylinder 6. The first scraper can scrape the inner wall of the first electrically heated drying cylinder 6 to prevent the material from clumping and sticking.

[0041] The first electric heating drying cylinder 6 is horizontally positioned, which is conducive to the uniform distribution and drying of materials inside; the connection with the upright 2, transition pipe 3 and feed pipe assembly 4 is stable and reasonable, ensuring smooth material transmission; the setting of the first scraper enhances the self-cleaning ability of the first electric heating drying cylinder 6.

[0042] The first electric heating drying cylinder 6 is the place where materials are dried in the first stage; the first scraper is responsible for cleaning the inner wall of the first electric heating drying cylinder 6 to ensure the drying effect and the normal flow of materials.

[0043] When drying materials with a certain degree of viscosity that are prone to electrostatic adsorption during the drying process, the first scraper can break the adsorption force between the material and the cylinder wall caused by electrostatics during the scraping process, ensuring that the material does not adhere to the cylinder wall for a long time due to electrostatic adsorption, affecting drying efficiency and quality. At the same time, the horizontal structure of the first electric heating drying cylinder 6 allows for precise control of the material's residence time inside the cylinder in certain special processes that require control over the material's drying time. This can be achieved by adjusting the material's entry speed and the air velocity inside the first electric heating drying cylinder 6, thus meeting the requirements of special drying processes.

[0044] Based on any of the above technical solutions, the following further optimization is made: the first scraper includes two relatively spaced and coaxially fitted first scraping iron rings 7 installed in the inner cylindrical cavity. The outer wall of the scraping iron ring 7 abuts against the inner wall of the inner cylindrical cavity and can be displaced along the axial direction of the inner cylindrical cavity under the action of external force. The first electric heating drying cylinder 6 is made of stainless steel.

[0045] The two first scraper iron rings 7 are fixedly connected by several connecting shafts.

[0046] Under the action of external force, the first scraping iron ring 7 moves axially along the inner cylindrical cavity of the first electrically heated drying cylinder 6, and its outer wall abuts against the cylinder wall, scraping off the material adhering to the cylinder wall. The stainless steel first electrically heated drying cylinder 6 ensures the corrosion resistance of the device.

[0047] The first scraping iron ring 7 has a simple structure, making it easy to install and maintain; its fit with the internal cylindrical cavity ensures good scraping effect; and the stainless steel material improves the service life of the device and reduces failures caused by corrosion.

[0048] The first scraping iron ring 7 performs the scraping function on the inner wall of the first electric heating drying cylinder 6; the stainless steel first electric heating drying cylinder 6 ensures the stability and reliability of the device during long-term use.

[0049] In some production environments with extremely high requirements for the cleanliness of the drying environment, the stainless steel first electric heating drying cylinder 6 is not prone to rusting or the shedding of impurities, which can avoid contamination of the dried materials.

[0050] Based on any of the above technical solutions, a further optimization is made as follows: the second drying unit includes a horizontally arranged second electric heating drying cylinder 8, both the left and right ends of the second electric heating drying cylinder 8 are fixedly installed on the corresponding uprights 2, the left end of the second electric heating drying cylinder 8 is connected to the bottom of the transition pipe 3, the right end of the second electric heating drying cylinder 8 is connected to the top of the discharge pipe assembly 5, and a second scraper is coaxially installed in the internal cylindrical cavity of the second electric heating drying cylinder 8.

[0051] The material dried in the first drying unit enters the second electrically heated drying cylinder 8 through the transition pipe 3 for further drying. The second scraper scrapes the material from the inner wall of the second electrically heated drying cylinder 8 to prevent material from adhering.

[0052] The horizontal setting of the second electric heating drying cylinder 8 facilitates material drying and transportation; the connection with the upright 2, transition pipe 3 and discharge pipe assembly 5 is stable and reasonable; the second scraper enhances the self-cleaning ability of the second electric heating drying cylinder 8.

[0053] The second electric heating drying cylinder 8 is the place where materials are further dried; the second scraper is responsible for cleaning the inner wall of the second electric heating drying cylinder 8 to ensure the drying effect and smooth output of materials.

[0054] When drying materials that are prone to agglomeration during the drying process, the second scraper can help break up the agglomerates, allowing the material to come into more full contact with the drying medium and improving drying efficiency and uniformity.

[0055] Based on any of the above technical solutions, the following further optimization is made: the second scraper includes two relatively spaced and coaxially fitted second scraping iron rings 9 installed in the inner cylindrical cavity. The outer wall of the second scraping iron ring 9 abuts against the inner wall of the inner cylindrical cavity and can be displaced along the axial direction of the inner cylindrical cavity under the action of external force. The second electric heating drying cylinder 8 is made of stainless steel.

[0056] The two second scraper rings 9 are fixedly connected by several connecting shafts.

[0057] Under external force, the second scraping iron ring 9 moves axially along the inner cylindrical cavity of the second electric heating drying cylinder 8, scraping off the material adhering to the cylinder wall. The stainless steel second electric heating drying cylinder 8 ensures the corrosion resistance of the device.

[0058] The second scraping iron ring 9 has a simple structure and good scraping effect; its fit with the internal cylindrical cavity is reasonable; and its stainless steel material extends the service life of the device.

[0059] The second scraping iron ring 9 scrapes the material from the inner wall of the second electric heating drying cylinder 8; the stainless steel second electric heating drying cylinder 8 ensures long-term stable operation of the device.

[0060] Based on any of the above technical solutions, a further optimization is made by installing a control valve 10 on the transition pipe 3.

[0061] By controlling the opening and closing of valve 10, the flow rate and speed of material transfer between the first drying unit and the second drying unit are controlled.

[0062] Control valve 10 can flexibly adjust the material transfer between the two drying units, improving the controllability of the drying process.

[0063] This enables precise control over the transfer of materials between the two drying units, ensuring the stability of the drying process and the drying effect.

[0064] Based on any of the above technical solutions, a further optimization is made as follows: the scraping drive component includes a horizontally arranged bidirectional lead screw 11, the two ends of the bidirectional lead screw 11 respectively extend through stepped shafts at their ends to the outer side of the corresponding support 2, a drive motor 12 for driving the bidirectional lead screw 11 to rotate is fixedly installed on the outer wall of the support 2 on the left side, the external threads on both sides of the middle of the bidirectional lead screw 11 have opposite directions of rotation, and slide blocks 13 are symmetrically screwed into the outer walls of the external threads on the left and right sides of the bidirectional lead screw 11, respectively, a first strong magnetic ring 14 and a second strong magnetic ring 15 are movably sleeved on the outer walls of the first electric heating drying cylinder 6 and the second electric heating drying cylinder 8 at the top and bottom of each slide block 13, respectively, and the slide block 13 is fixedly connected to the corresponding first strong magnetic ring 14 and second strong magnetic ring 15 through a vertical shaft 16.

[0065] The drive motor 12 drives the bidirectional lead screw 11 to rotate. Since the external threads on both sides of the middle of the bidirectional lead screw 11 rotate in opposite directions, the slide blocks 13 on the left and right sides move towards or away from each other on the bidirectional lead screw 11. The slide blocks 13 drive the first strong magnetic ring 14 and the second strong magnetic ring 15 to move through the vertical shaft 16. The magnetic force of the strong magnetic rings drives the first scraping iron ring 7 and the second scraping iron ring 9 to move axially within the electric heating drying cylinder, thereby realizing the scraping operation.

[0066] The cooperation between the bidirectional lead screw 11 and the drive motor 12 realizes the automation of the scraping action and improves the scraping efficiency; the use of magnetic transmission avoids wear and failure caused by direct mechanical contact and improves the reliability and stability of the device.

[0067] The drive motor 12 provides power, and the bidirectional lead screw 11 converts the rotational motion into the linear motion of the slide 13. The slide 13 drives the strong magnetic ring, which in turn drives the scraping iron ring to complete the scraping function on the inner wall of the electric heating drying cylinder.

[0068] Example 2: Compared with Example 1, this example also includes the following technical features:

[0069] Based on any of the above technical solutions, a further optimization is made: when the drive motor 12 drives the bidirectional lead screw 11 to rotate, it can drive the two slide blocks 13 to move away from or towards each other, thereby driving the two oppositely arranged first strong magnetic rings 14 or the two oppositely arranged second strong magnetic rings 15 to move closer or further away from each other along the horizontal axis. During the movement of the first strong magnetic rings 14 and the second strong magnetic rings 15, the corresponding first scraping iron rings 7 and the second scraping iron rings 9 can be axially displaced in the inner cylindrical cavity, thereby completing the scraping of potassium chloride clumps adhering to the inner wall of the inner cylindrical cavity. The scraped clumps are then transported outward with the high-speed hot air supplied by the external Roots blower.

[0070] The drive motor 12 drives the bidirectional lead screw 11 to rotate, causing the slide 13 to move the strong magnetic ring. The strong magnetic ring uses magnetic force to move the scraping iron ring to scrape off the potassium chloride clumps on the inner wall of the electric heating drying cylinder. The scraped clumps are carried out of the device by the high-speed hot air generated by the Roots blower.

[0071] The working process of the scraper drive and the method of cleaning up clumps are explained in detail, which further improves the function of the device; high-speed hot air is used to remove clumps, avoiding the impact of clump accumulation on the drying process.

[0072] The coordinated role of each component in the process of scraping and cleaning potassium chloride clumps was clarified, ensuring the normal operation of the drying unit.

[0073] Based on any of the above technical solutions, the following further optimizations are made: the central face of the first scraping iron ring 7 is coplanar with the central face of the first strong magnetic ring 14; the central face of the second scraping iron ring 9 is coplanar with the central face of the second strong magnetic ring 15.

[0074] This coplanar arrangement makes the magnetic force transmission between the first strong magnetic ring 14 and the first scraper iron ring 7, the second strong magnetic ring 15 and the second scraper iron ring 9 more direct and effective, ensuring that the scraper iron ring can accurately follow the movement of the strong magnetic ring.

[0075] It improves the efficiency and accuracy of magnetic drive, reduces energy loss and scraping error, and enhances the scraping effect.

[0076] Ensure that the scraping ring can accurately move axially within the electric heating drying cylinder to better complete the scraping work and ensure the cleanliness of the inner wall of the electric heating drying cylinder.

[0077] Based on any of the above technical solutions, a further optimization is made by installing a discharge valve 17 on the discharge pipe assembly 5 and a feed valve 18 on the feed pipe assembly 4.

[0078] The feed valve 18 controls the flow rate and speed of the material entering the drying device, and the discharge valve 17 controls the flow rate and speed of the material output after drying.

[0079] The feed valve 18 and discharge valve 17 make the material entry and exit more controllable and can be adjusted according to the needs of the drying process, thereby improving drying efficiency and product quality.

[0080] Achieving precise control over material input and output ensures a stable amount of material inside the drying unit, which helps maintain the stability of the drying process.

[0081] Based on any of the above technical solutions, a further optimization is made as follows: a first flushing pipe connector 19 connected to the interior is installed on both sides of the bottom of the first electric heating drying cylinder 6, and a second flushing pipe connector 20 connected to the interior is installed on both sides of the bottom of the second electric heating drying cylinder 8. Both the first flushing pipe connector 19 and the second flushing pipe connector 20 are equipped with opening and closing valves. In the working state, each of the first flushing pipe connector 19 and each of the second flushing pipe connector 20 is connected to an external water pipe with a pump.

[0082] When it is necessary to clean the electric heating drying cylinder, open the on / off valves on the first flushing pipe joint 19 and the second flushing pipe joint 20. The external water pipe with pump will deliver water into the electric heating drying cylinder to flush the inside of the electric heating drying cylinder.

[0083] The flushing pipe joint and the on / off valve facilitate the cleaning of the electric heating drying cylinder, effectively remove residual materials inside the cylinder, ensure the quality of the next drying process, and extend the service life of the equipment.

[0084] It enables the cleaning function of the first electric heating drying cylinder 6 and the second electric heating drying cylinder 8, ensuring the cleanliness of the inside of the drying device and preventing residual materials from affecting the subsequent drying process.

[0085] The work process is as follows:

[0086] Material drying: The Roots blower feeds the material to be dried into the first electrically heated drying cylinder 6 (in the prior art) through the feed pipe assembly 4, where the material undergoes the first stage of drying. Afterward, the material passes through the transition pipe 3 into the second electrically heated drying cylinder 8 (in the prior art) for further drying. After drying, the material is transported to the external conveying pipeline through the discharge pipe assembly 5.

[0087] Material scraping and cleaning: The drive motor 12 drives the bidirectional lead screw 11 to rotate. Since the external threads on both sides of the middle of the bidirectional lead screw 11 rotate in opposite directions, the left and right slides 13 move towards or away from each other on the bidirectional lead screw 11. The slides 13 drive the first strong magnetic ring 14 and the second strong magnetic ring 15 to move through the vertical shaft 16. The magnetic force of the strong magnetic rings drives the first scraping iron ring 7 and the second scraping iron ring 9 to move axially inside the electric heating drying cylinder, scraping off the material adhering to the cylinder wall and maintaining the smooth progress of the drying process.

[0088] Clumping removal: When the drive motor 12 drives the bidirectional lead screw 11 to rotate, the slide 13 drives the strong magnetic ring to move. The strong magnetic ring uses magnetic force to drive the scraping iron ring to move, scraping off the potassium chloride clumps on the inner wall of the electric heating drying cylinder. The scraped clumps are then transported outward with the high-speed hot air supplied by the external Roots blower to avoid clump accumulation affecting drying.

[0089] Material inlet and outlet control: The feed valve 18 controls the flow rate and speed of material entering the drying device, and the discharge valve 17 controls the flow rate and speed of material output after drying, so as to ensure the stability of the material quantity inside the drying device and maintain the stability of the drying process.

[0090] Equipment cleaning: When the electric heating drying cylinder needs to be cleaned, open the on / off valves on the first flushing pipe joint 19 and the second flushing pipe joint 20. The water pipe with the external pump will deliver water to the electric heating drying cylinder to flush its interior, ensuring the quality of the next drying process and extending the service life of the equipment.

[0091] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0092] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. Anhydrous potassium chloride high-efficiency drying device, comprising a support platform, characterized in that: Supporting platform top two sides are symmetrically fixed with stand, first drying unit, second drying unit are respectively arranged between the two stands from top to bottom, the left end of the first drying unit and the second drying unit are connected through transition pipe, the left end of the first drying unit is provided with feed pipe group, the left end of the second drying unit is provided with discharge pipe group, the feed end of the feed pipe group is connected with external roots blower, the discharge end of the discharge pipe group is connected with external conveying pipeline, the first drying unit and the second drying unit are provided with scraping drive, which is used for scraping the inner wall of the first drying unit and the second drying unit.

2. The anhydrous potassium chloride efficient drying device according to claim 1, characterized in that: The first drying unit comprises a horizontally arranged first electric heating drying cylinder, the left and right ends of the first electric heating drying cylinder are fixedly installed on the corresponding stand, the left end of the first electric heating drying cylinder is connected with the top of the transition pipe, the right end of the first electric heating drying cylinder is connected with the top of the feed pipe group, a first scraper is coaxially fitted and installed in the inner cylindrical cavity of the first electric heating drying cylinder.

3. The anhydrous potassium chloride efficient drying device according to claim 2, characterized in that: The first scraper comprises two first scraper iron rings which are oppositely spaced and coaxially fitted and installed in the inner cylindrical cavity, the outer side wall of the first scraper iron ring is in abutment with the inner wall of the inner cylindrical cavity and can be displaced along the axial direction of the inner cylindrical cavity under the action of external force, and the first electric heating drying cylinder is made of stainless steel.

4. The anhydrous potassium chloride efficient drying device according to claim 3, characterized in that: The second drying unit comprises a horizontally arranged second electric heating drying cylinder, the left and right ends of the second electric heating drying cylinder are fixedly installed on the corresponding stand, the left end of the second electric heating drying cylinder is connected with the bottom of the transition pipe, the right end of the second electric heating drying cylinder is connected with the top of the discharge pipe group, a second scraper is coaxially fitted and installed in the inner cylindrical cavity of the second electric heating drying cylinder.

5. The anhydrous potassium chloride efficient drying device according to claim 4, characterized in that: The second scraper comprises two second scraper iron rings which are oppositely spaced and coaxially fitted and installed in the inner cylindrical cavity, the outer side wall of the second scraper iron ring is in abutment with the inner wall of the inner cylindrical cavity and can be displaced along the axial direction of the inner cylindrical cavity under the action of external force, and the second electric heating drying cylinder is made of stainless steel.

6. The anhydrous potassium chloride efficient drying device according to claim 5, characterized in that: A control valve is installed on the transition pipe.

7. The anhydrous potassium chloride efficient drying device according to claim 6, characterized in that: The scraping drive comprises a horizontally arranged bidirectional screw rod, the two ends of the bidirectional screw rod are respectively movably penetrated to the outer side of the corresponding stand through the stepped shafts at the ends thereof, a driving motor for driving the bidirectional screw rod to rotate is fixedly installed on the outer side wall of the left stand, the outer threads on the two sides of the middle part of the bidirectional screw rod are opposite in rotation direction, a sliding seat is symmetrically screwed on the outer thread outer side wall on the left and right sides of the bidirectional screw rod, a first strong magnetic ring and a second strong magnetic ring are movably sleeved on the outer side wall of the first electric heating drying cylinder and the outer side wall of the second electric heating drying cylinder on the top and bottom of each sliding seat, and the sliding seat is fixedly connected with the corresponding first strong magnetic ring and second strong magnetic ring through a vertical shaft.

8. The anhydrous potassium chloride efficient drying device according to claim 7, characterized in that: The central vertical surface of the first scraping iron ring is arranged in the same plane with the central vertical surface of the first strong magnetic ring; and the central vertical surface of the second scraping iron ring is arranged in the same plane with the central vertical surface of the second strong magnetic ring.

9. The anhydrous potassium chloride efficient drying device according to claim 8, characterized in that: A discharge valve is arranged on the discharge pipe group, and a feed valve is arranged on the feed pipe group.

10. The anhydrous potassium chloride efficient drying device according to claim 9, characterized in that: First flushing pipe joints are arranged on the two sides of the bottom of the first electric heating drying cylinder and are connected with the inside of the first electric heating drying cylinder, second flushing pipe joints are arranged on the two sides of the bottom of the second electric heating drying cylinder and are connected with the inside of the second electric heating drying cylinder, and an on-off valve is arranged on each of the first flushing pipe joints and the second flushing pipe joints, and each of the first flushing pipe joints is connected with an external water pipe with a pump in a working state, and each of the second flushing pipe joints is connected with an external water pipe with a pump in a working state.

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