Powdered salt anti-caking blowing device

Abstract

The utility model discloses a powder salt anti -caking purging device, including salt storehouse body, its surface is established with feed port and discharge gate respectively, drying mechanism, it includes net board, sweep and blows the end, net board installs in the salt storehouse body, and is located below the feed port, the sweep and includes driving part, connecting piece and rubbing roller, the driving part sets up on the salt storehouse body upper end, and the output of driving part is provided with connecting piece, the connecting piece extends to the salt storehouse body, and the rubbing roller is swing -connected, and drive rubbing roller circumferential motion on net board, blow the end setting in the net board lower extreme, for improving the salt storehouse body internal temperature. The utility model has the beneficial effect of: solve the conventional salt storehouse in the prior art and cannot handle the block that has formed, to the stored raw material simultaneously, cannot dry or disturb it, lead to the salt in the salt storehouse, the technical problem of easy secondary caking.

Description

Technical Field

[0001] This utility model relates to the field of salt processing technology, specifically to a powdered salt anti-caking blowing device. Background Technology

[0002] During the industrial storage and use of salt, especially refined industrial salt or snow-melting salt, it is very easy to absorb moisture and deliquinate due to high ambient humidity or poor control of its own moisture content. This can lead to adhesion and caking between particles, forming hard lumps. Powdered salt has strong hygroscopicity. Especially in high humidity environments or after being compressed or damp during transportation, it is very easy to form agglomerates of different sizes or even hard salt blocks. If such salt containing lumps is directly put into the storage silo, it will not only block the discharge port and affect the smoothness of the discharge, but also form a core of agglomeration in the silo. Under the condition of temperature and humidity changes, it will expand rapidly, causing the salt in the entire silo to caking, which will seriously affect the efficiency of subsequent use and the stability of the system. Currently, conventional salt storage facilities mostly employ passive anti-caking measures, such as adding anti-caking agents to the salt, sealing the storage facility, or installing simple agitation devices inside. However, these methods have significant limitations. Anti-caking agents are limited by their application scenarios and cannot handle already formed lumps. Sealing or dehumidification can only slow down the moisture absorption process and is ineffective against salt lumps that existed before the salt entered the storage facility. Although traditional agitation mechanisms can loosen some of the compacted salt layer, they cannot effectively break up the initial salt lumps with high hardness and are easily damaged due to the abrasiveness of salt, resulting in high maintenance costs. Furthermore, openings in the storage walls may introduce moisture, which is counterproductive. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a powdered salt anti-caking blowing device to solve the technical problem that conventional salt bins in the prior art cannot handle already formed lumps, and at the same time cannot dry or disturb the stored raw materials, resulting in the salt inside the salt bin easily caking again.

[0004] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a powdered salt anti-caking purging device, comprising: The salt storage tank body has an inlet and an outlet on its surface; The drying mechanism includes a screen plate, a sweeping end, and a blowing end. The screen plate is installed inside the salt bin body and located below the feed inlet. The sweeping end includes a drive component, a connecting component, and a crushing roller. The drive component is located at the upper end of the salt bin body, and the output end of the drive component is provided with a connecting component. The connecting component extends into the salt bin body and is movably connected to the crushing roller, driving the crushing roller to move circumferentially on the screen plate. The blowing end is located at the lower end of the screen plate and is used to increase the internal temperature of the salt bin body.

[0005] In some embodiments, an air outlet shell is installed on the top of the salt tank body, a plurality of first air vents are provided at the connection between the salt tank body and the air outlet shell, a plurality of second air vents are provided at the upper end of the air outlet shell, a baffle plate is detachably connected inside the air outlet shell, and a solenoid valve is provided inside the discharge port.

[0006] In some embodiments, the mesh plate includes a first screen and a second screen, which are installed from top to bottom on the salt tank body, and the aperture of the first screen is larger than that of the second screen.

[0007] In some embodiments, the driving component includes a drive motor and a shaft. The drive motor is mounted on the upper end of the salt tank body, and the output end of the drive motor is connected to the shaft. One end of the shaft extends into the salt tank body, and a plurality of connectors are connected to the outer periphery of the shaft.

[0008] In some embodiments, the connector includes a plurality of first mounting brackets and a plurality of second mounting brackets; the plurality of first mounting brackets are circumferentially arranged outside the shaft and located at the upper end of the first screen; the plurality of second mounting brackets are circumferentially arranged outside the shaft and located at the upper end of the second screen, and a crushing roller is rotatably connected to both the first mounting brackets and the second mounting brackets.

[0009] In some embodiments, both the first mounting bracket and the second mounting bracket are provided with guide protrusions on their tops, and the number of the first mounting bracket and the second mounting bracket is at least three.

[0010] In some embodiments, a sliding groove is provided inside the salt tank body and at the upper end of the first screen and the second screen, and a slider is provided on the first mounting frame and the second mounting frame, the slider being slidably connected in the sliding groove.

[0011] In some embodiments, the crushing roller includes a first roller body and a second roller body, the first roller body being rotatably connected to the lower end of the first mounting frame, the second roller body being rotatably connected to the lower end of the second mounting frame, and the first roller body being circumferentially movable on the first screen, and the second roller body being circumferentially movable on the second screen.

[0012] In some embodiments, the blowing end includes a housing, a duct, and an air pump. Multiple heating tubes are arranged equidistantly inside the housing, and the lower end of the housing is connected to a duct. The end of the duct is connected to one end of the air pump, and the other end of the air pump is connected to one end of an annular pipe. The annular pipe is arranged inside the salt tank body and located below the second screen. Multiple jet nozzles are arranged at the lower end of the annular pipe, and an aeration plate is also provided on the outer periphery of the salt tank body. A pipe is connected to the aeration plate.

[0013] In some embodiments, a support member is provided on the outer periphery of the salt tank body. The support member includes a connecting block and a plurality of support legs. The connecting block is fixed to the outer periphery of the salt tank body, and a plurality of support legs are arranged circumferentially on the connecting block.

[0014] Compared with existing technologies, the powdered salt anti-caking blowing device provided by this utility model has a screen plate set below the feed inlet. When powdered salt enters the salt bin body through the feed inlet, it first falls onto the screen plate. Larger salt lumps or agglomerates cannot pass through the mesh and are retained on the surface of the screen plate, while fine salt particles pass through the screen plate and fall into the lower storage area of ​​the bin body. At the same time, the crushing roller, driven by the drive component and driven by the connecting component, performs a circular motion on the surface of the screen plate, continuously crushing and grinding the retained large salt particles into fine powder that can pass through the mesh. This realizes automatic screening and instant crushing during the bin entry process, preventing large salt lumps from directly entering the storage area and becoming the core of agglomeration, fundamentally reducing the initial risk of agglomeration. The sweeping end is integrated into the inside of the salt bin body, and the drive component is installed at the upper end of the bin body. Power is transmitted to the crushing roller inside the bin through the connecting component. With a compact structure, the crushing rollers move in a circular motion on the screen, which not only covers a large screening area but also efficiently crushes salt lumps through rolling and crushing action. At the same time, it promotes the uniform distribution of materials on the screen, prevents local accumulation and blockage of the mesh, and ensures the continuity and stability of the screening and crushing process. The air blowing end is located at the lower end of the screen, which can introduce hot air or dry airflow into the salt bin body to increase the overall temperature inside the bin. On the one hand, the increased temperature helps to reduce the relative humidity of the air inside the bin, reducing the adsorption of moisture by the salt. On the other hand, the hot air can penetrate upwards through the stored powdered salt layer, taking away the trace amounts of moisture adsorbed on the surface of the salt particles, forming a dry microenvironment. This achieves active drying and temperature control of the salt in the storage area, effectively preventing secondary agglomeration of powdered salt caused by fluctuations in environmental humidity or residual moisture during storage, and ensuring the fluidity and quality stability of the salt during long-term storage. Attached Figure Description

[0015] Figure 1 This is a front view of the powder salt anti-caking purging device provided in this embodiment of the utility model; Figure 2 This is a side view of the powder salt anti-caking blowing device provided in this embodiment of the utility model; Figure 3 This is a three-dimensional schematic diagram of the powdered salt anti-caking blowing device provided in this embodiment of the utility model; Figure 4 This is a schematic diagram of the interior of the salt bin body of the anti-caking and purging device for powdered salt provided in this embodiment of the utility model; Figure 5 This is a schematic diagram of the screen assembly of the anti-caking blowing device for powdered salt provided in this embodiment of the utility model; Figure 6This is a schematic diagram of the sweeping end assembly of the anti-caking blowing device for powdered salt provided in this embodiment of the utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Salt bin body; 11. Feed inlet; 12. Discharge outlet; 13. Air outlet shell; 131. First air outlet; 132. Second air outlet; 133. Baffle plate; 2. Drying mechanism; 3. Mesh plate; 31. First screen; 32. Second screen; 4. Sweeping end; 41. Driving component; 411. Drive motor; 412. Shaft; 42. Connecting component; 421. First mounting frame; 422. Second mounting frame; 43. Crushing roller; 431. First roller body; 432. Second roller body; 5. Blowing end; 51. Box body; 511. Heating tube; 52. Conduit; 53. Air pump; 531. Annular pipe; 532. Jet nozzle; 533. Gasification plate; 6. Support component; 61. Connecting block; 62. Support leg. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the anti-caking and purging device for powdered salt in one embodiment of the present invention. The anti-caking and purging device for powdered salt includes a salt tank body 1, on which an inlet 11 and an outlet 12 are respectively opened on the surface. The drying mechanism 2 includes a screen plate 3, a sweeping end 4, and a blowing end 5. The screen plate 3 is installed inside the salt bin body 1 and is located below the feed inlet 11. The sweeping end 4 includes a drive component 41, a connecting component 42, and a crushing roller 43. The drive component 41 is located at the upper end of the salt bin body 1, and the output end of the drive component 41 is provided with a connecting component 42. The connecting component 42 extends into the salt bin body 1 and is movably connected to the crushing roller 43, driving the crushing roller 43 to move circumferentially on the screen plate 3. The blowing end 5 is located at the lower end of the screen plate 3 and is used to increase the internal temperature of the salt bin body 1.

[0019] In this embodiment, the mesh plate 3 is located below the feed inlet 11. When powdered salt enters the salt silo body 1 through the feed inlet 11, it first falls onto the mesh plate 3. Larger salt lumps or agglomerates cannot pass through the mesh and are retained on the surface of the mesh plate 3, while fine salt particles pass through the mesh plate 3 and fall into the lower storage area of ​​the silo. At the same time, the crushing roller 43, driven by the drive component 41 and driven by the connecting component 42, performs a circular motion on the surface of the mesh plate 3, continuously crushing and grinding the retained large salt particles into fine powder that can pass through the mesh. This achieves screening and immediate crushing during the silo entry process, preventing large salt lumps from directly entering the storage area and becoming agglomerates, fundamentally reducing the initial agglomeration risk. The sweeping end 4 is integrated inside the salt silo body 1, and the drive component 41 is installed at the upper end of the silo. Power is transmitted to the crushing roller 43 inside the silo through the connecting component 42. The compact crushing roller 43 moves in a circular motion on the screen plate 3, which not only covers a large screening area, but also efficiently crushes salt blocks through rolling and crushing action. At the same time, it promotes the uniform distribution of materials on the screen plate 3, prevents local accumulation and blockage of the mesh, and ensures the continuity and stability of the screening and crushing process. The air blowing end 5 is set at the lower end of the screen plate 3, which can introduce hot air or dry airflow into the salt bin body 1 to increase the overall temperature inside the bin. On the one hand, the increase in temperature helps to reduce the relative humidity of the air inside the bin and reduce the adsorption of moisture by the salt. On the other hand, the hot air can penetrate upwards through the stored powdered salt layer and take away the trace amount of moisture adsorbed on the surface of the salt particles, forming a dry microenvironment. This realizes the active drying and temperature control of the salt in the storage area, effectively preventing secondary agglomeration of powdered salt caused by environmental humidity fluctuations or residual moisture during storage, and ensuring the fluidity and quality stability of long-term storage.

[0020] In one embodiment, please refer to Figures 1-4 To improve the ventilation efficiency of the salt storage body 1, an air outlet shell 13 is installed on the top of the salt storage body 1. Multiple first air vents 131 are opened at the connection between the salt storage body 1 and the air outlet shell 13. Multiple second air vents 132 are opened at the upper end of the air outlet shell 13. A baffle plate 133 is detachably connected inside the air outlet shell 13. A solenoid valve is installed inside the discharge port 12.

[0021] In this embodiment, an air outlet shell 13 is installed on the top of the salt storage body 1. Multiple first air vents 131 are provided at the connection point between the shell and the storage body. Multiple second air vents 132 are provided at the upper end of the air outlet shell 13, forming an airflow channel between the storage body, the first air vents 131, the air outlet shell 13, the second air vents 132, and the outside. When the blower end 5 sends hot air into the storage body, the humid, hot air carrying moisture can rise naturally, enter the air outlet shell 13 through the first air vents 131, and then be discharged through the second air vents 132. This structure effectively guides the moisture to escape in a directional manner, preventing condensation from accumulating on the top of the storage body. Simultaneously, a detachable baffle 133 is installed inside the air outlet shell 13, which can be flexibly adjusted according to environmental humidity or dust control requirements. Flexible adjustment: In a dry environment, the baffle 133 can be partially or completely removed to increase the exhaust volume and accelerate drying; in a dusty or high-humidity external environment, the baffle 133 can be installed to slow down the exhaust speed and block the backflow of external dust, while extending the residence time of humid air in the air outlet shell 13, promoting the condensation of water vapor on the baffle 133 instead of flowing back to the salt bin, thus achieving both efficient dehumidification and dust and moisture prevention. The discharge port 12 is equipped with a solenoid valve. Compared with traditional manual gates or mechanical valves, the solenoid valve has a fast response speed and good sealing performance, which can effectively prevent humid air from seeping back into the bin through the discharge port 12 when not unloading, further ensuring a dry environment inside the bin.

[0022] In one embodiment, please refer to Figures 1-5To improve the equipment's efficiency in crushing agglomerated salt, the screen plate 3 includes a first screen 31 and a second screen 32. The first screen 31 and the second screen 32 are installed from top to bottom on the salt tank body 1, and the aperture of the first screen 31 is larger than that of the second screen 32. The driving component 41 includes a drive motor 411 and a shaft 412. The drive motor 411 is installed on the upper end of the salt tank body 1, and the output end of the drive motor 411 is connected to the shaft 412. One end of the shaft 412 extends into the salt tank body 1, and multiple connectors 42 are connected to the outer periphery of the shaft 412. The connectors 42 include multiple first mounting brackets 421 and multiple second mounting brackets 422. The multiple first mounting brackets 421 are circumferentially arranged on the outside of the shaft 412 and located on the upper end of the first screen 31. The multiple second mounting brackets 422 are circumferentially arranged on the outside of the shaft 412 and located on the upper end of the second screen 31. At the upper end of the screen 32, crushing rollers 43 are rotatably connected to both the first mounting frame 421 and the second mounting frame 422. The top of both the first mounting frame 421 and the second mounting frame 422 is provided with a guide protrusion. There are at least three first mounting frames 421 and the second mounting frame 422. Sliding grooves are opened inside the salt tank body 1 and at the upper end of the first screen 31 and the second screen 32. Sliding blocks are provided on both the first mounting frame 421 and the second mounting frame 422. The sliding blocks are slidably connected in the sliding grooves. The crushing roller 43 includes a first roller body 431 and a second roller body 432. The first roller body 431 is rotatably connected to the lower end of the first mounting frame 421, and the second roller body 432 is rotatably connected to the lower end of the second mounting frame 422. The first roller body 431 can move circumferentially on the first screen 31, and the second roller body 432 can move circumferentially on the second screen 32.

[0023] In this embodiment, the first screen 31 and the second screen 32 are arranged from top to bottom, with the aperture of the first screen 31 being larger than that of the second screen 32, forming a two-stage screening gradient. This, along with the first mounting frame 421 and the first roller 431 located above them, and the second mounting frame 422 and the second roller 432, constitutes a two-stage processing structure of coarse screening (coarse crushing) and fine screening (fine crushing). Large pieces of salt are first crushed by the first roller 431 on the first screen 31, and the initially refined salt particles fall to the second screen 32, where they are further finely ground. This avoids the problem of insufficient processing capacity for salt blocks of different sizes in a single crushing stage, significantly improving the overall crushing efficiency and ensuring that the final particles pass through the second screen 32. The powdered salt has a more uniform and finer particle size, fundamentally eliminating the risk of clumping caused by large particle residue. The drive motor 411 drives the upper and lower crushing mechanisms simultaneously through a shaft 412 that runs through the upper end of the silo. Multiple first mounting brackets 421 and second mounting brackets 422 are arranged circumferentially on the outer periphery of the shaft 412, with no fewer than three in each case. This ensures that the first roller 431 and second roller 432 are evenly distributed along the circumference of their respective screen plates 3, ensuring that the crushing roller 43 forms a multi-point synchronous, annular covering crushing trajectory on the surface of the screen plate 3. This effectively avoids the processing blind spots present in traditional single roller or double roller structures, significantly improving the utilization rate of the screening surface and the uniformity of crushing, and preventing local salt lumps from accumulating and not being processed. On the inner wall of the salt silo body 1, located in the first Slide grooves are respectively opened above the screen 31 and the second screen 32. Slide blocks are correspondingly set on the first mounting frame 421 and the second mounting frame 422 and slide in cooperation with the slide grooves. This guiding structure, on the one hand, constrains the mounting frame to only make circumferential translational movements, preventing it from shaking, tilting or overturning under the pressure or vibration of the salt material. On the other hand, it transfers part of the vertical load to the bin wall through the slide blocks, significantly reducing the radial force on the shaft 412 and the drive motor 411, reducing the wear and failure rate of the transmission structure, and improving the overall stability and service life of the machine. The first roller 431 and the second roller 432 are respectively rotatably connected to the lower end of the corresponding mounting frame, so that while they revolve around the shaft 412 with the mounting frame, they can also rotate around their own axis, thus regulating the screen 3. The sweeping motion, a composite motion mode, not only increases the crushing and shearing force on the salt blocks and improves crushing efficiency, but also automatically removes fine salt adhering to the roller surface during the rolling process, preventing scaling or clogging of the mesh and ensuring the reliability of long-term continuous operation. The top of the first mounting frame 421 and the second mounting frame 422 are provided with guide protrusions. When the salt falls from the feed inlet 11, the guide protrusions can disperse and guide the concentrated material to the surrounding areas, avoiding direct impact of the material on the single crushing roller 43 or accumulation in the central area of ​​the screen plate 3, so that the salt is more evenly distributed on the entire screening surface. At the same time, the streamlined structure of the guide protrusions can reduce the material resistance encountered by the mounting frame during rotation, reduce the load on the drive motor 411, and achieve energy-saving operation.

[0024] In one embodiment, please refer to Figures 1-6To prevent secondary agglomeration of materials inside the salt storage body 1, the blowing end 5 includes a box 51, a conduit 52, and an air pump 53. Multiple heating pipes 511 are arranged equidistantly inside the box 51, and the lower end of the box 51 is connected to the conduit 52. The end of the conduit 52 is connected to one end of the air pump 53, and the other end of the air pump 53 is connected to one end of the annular pipe 531. The annular pipe 531 is arranged inside the salt storage body 1 and is located below the second screen 32. Multiple jet nozzles 532 are arranged at the lower end of the annular pipe 531. An aeration plate 533 is also provided on the outer periphery of the salt storage body 1. A pipe is connected to the aeration plate 533. A support member 6 is also provided on the outer periphery of the salt storage body 1. The support member 6 includes a connecting block 61 and several support legs 62. The connecting block 61 is fixed to the outer periphery of the salt storage body 1, and multiple support legs 62 are arranged circumferentially on the connecting block 61.

[0025] In this embodiment, the blowing end 5 includes a housing 51, a duct 52, and an air pump 53. Multiple heating tubes 511 are evenly arranged inside the housing 51 to uniformly and stably heat the air. The heated air is then pressurized and transported by the air pump 53 through the duct 52 to the annular pipe 531 inside the salt storage body 1, forming a complete hot air supply chain of heating, pressurization, and directional delivery. This ensures that the hot air has sufficient temperature and kinetic energy to effectively penetrate the powdered salt layer, remove moisture adsorbed on the surface of the salt particles, significantly reduce the relative humidity inside the storage chamber, and suppress humidity from an environmental perspective. To prevent secondary agglomeration, annular pipes 531 are arranged below the second screen 32, with multiple jet nozzles 532 at their lower ends. This allows hot air to enter the powdered salt storage area in a ring-shaped, multi-point, upward jet pattern. This arrangement ensures that the hot air diffuses evenly around the bottom of the silo, effectively covering the entire cross-section of the silo. This avoids the problems of overheating in the center and dampness at the edges caused by traditional single-point air supply. The uniform airflow distribution not only improves the overall drying efficiency but also creates a weak fluidization effect in the powdered salt layer, enhancing the looseness between salt particles and further preventing compaction and agglomeration. An aeration plate 533 is installed around the outer periphery of the salt silo body 1, and is connected to an air source via a pipe. The air source can be dry compressed air or a portion of hot air. During unloading or long-term storage, clean gas can be introduced into the aeration plate 533. The gas passes through micropores into the interface between the silo wall and the powdered salt, forming an air film on the silo wall. This significantly reduces the frictional resistance and adhesion between the powdered salt and the silo wall, effectively preventing the powdered salt from forming a crust on the wall surface near the silo wall due to moisture absorption or static pressure. This ensures the overall fluidity of the powdered salt, especially during the discharge stage, preventing rodent holes or bridging, and ensuring smooth unloading. The material supply is continuous and stable. Support components 6 are set on the outer periphery of the salt silo body 1, including connecting blocks 61 fixed to the silo body and multiple support legs 62 arranged circumferentially. These components not only provide uniform and stable load-bearing support for the salt silo body 1, effectively dispersing the silo body's own weight and the huge load when fully loaded, preventing local deformation or overturning; at the same time, the circumferentially symmetrical arrangement of multiple support legs 62 enhances the overall machine's resistance to wind loads, earthquakes, and uneven settlement, making it particularly suitable for complex environments such as outdoor or industrial sites, ensuring the structural safety and stability of the equipment during long-term operation.

[0026] To better understand this utility model, the following is combined with... Figures 1 to 6The technical solution of this utility model is described in detail as follows: After the powdered salt enters the salt tank body 1 through the feed inlet 11, it first falls onto the mesh plate 3 located directly below the feed inlet 11. The mesh plate 3 has a two-layer structure: the upper layer is a first screen 31 with a larger aperture, and the lower layer is a second screen 32 with a smaller aperture. Large pieces of salt or agglomerates larger than the aperture of the first screen 31 are trapped on the surface of the first screen 31; medium-sized particles with an aperture between the first screen 31 and the second screen 32 pass through the first screen 31 and fall onto the surface of the second screen 32; fine salt particles pass directly through the second screen 32 and fall into the lower storage area of ​​the tank body. At the same time, the salt is installed at the upper end of the salt tank body 1... The drive motor 411 starts, driving the shaft 412 to rotate. The first mounting frame 421, which is circumferentially arranged on the outer periphery of the shaft 412, is located above the first screen 31, and the second mounting frame 422, which is located above the second screen 32, rotates synchronously with it. The first roller 431 and the second roller 432, which are rotatably connected to the lower end of each mounting frame, make circular motion on the surface of the corresponding screen plate 3, and roll, crush and shear the salt blocks that are stuck. The guide protrusion on the top of the mounting frame disperses the concentrated falling salt material to the surrounding area to avoid impacting a single area. Under the combined motion of revolution and rotation, the crushing roller 43 not only efficiently crushes the salt blocks, but also automatically removes the adhering material on the roller surface to prevent the mesh from clogging.The mounting frame slides smoothly against the grooves on the inner wall of the storage chamber via a slider, ensuring stable operation and preventing tilting. It also transfers some of the load to the storage wall, reducing the burden on the transmission system. After two stages of crushing, all salt particles are refined to the point where they can pass through the second screen 32, ultimately falling into the storage area. This eliminates large particle agglomerates at the source. The heating pipe 511 inside the chamber 51 heats the air evenly. The hot air is pressurized by the suction pump 53 via the conduit 52 and delivered to the annular pipe 531 located below the second screen 32 inside the salt storage chamber 1. The hot air enters the powdered salt storage area through multiple jet nozzles 532 at the lower end of the annular pipe 531 in a ring-shaped, multi-point, jetting manner. The hot air penetrates the salt layer, carrying away trace amounts of moisture adsorbed on the surface of the salt particles, reducing the relative humidity inside the chamber and creating a dry microenvironment. The humid, hot air carrying moisture naturally rises and enters the air outlet 13 cavity through the first air vent 131 at the connection between the salt storage chamber 1 and the air outlet 13, and then... The second air outlet 132 exhausts to the outside. When the external environment is dry, the removable baffle 133 can increase the exhaust volume and accelerate drying. When the outside is dusty or humid, the baffle 133 can be installed to prevent dust backflow, prolong the condensation time of moisture, and prevent water vapor backflow. At the same time, dry compressed air can be introduced into the aeration plate 533. The gas passes through the micropores and forms an air film on the inner surface of the silo wall, reducing the adhesion between the powdered salt and the silo wall and preventing the wall surface from crusting. When unloading is required, the blower end 5 or the aeration plate 533 can be activated first to briefly purge the powdered salt in the storage area and restore its fluidity. Then, the solenoid valve inside the discharge port 12 is opened, and the powdered salt flows out smoothly under the action of gravity. The solenoid valve has good sealing performance and rapid response. It is completely closed when not unloading, effectively preventing external humid air from seeping back into the silo through the discharge port 12 and maintaining a dry environment inside the silo. It should be noted that the installation position of the annular pipe 531 can be adjusted in height according to the actual situation.

[0027] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A powdered salt anti-caking purging device, characterized in that, include: The salt storage tank body has an inlet and an outlet on its surface; The drying mechanism includes a screen plate, a sweeping end, and a blowing end. The screen plate is installed inside the salt bin body and located below the feed inlet. The sweeping end includes a drive component, a connecting component, and a crushing roller. The drive component is located at the upper end of the salt bin body, and the output end of the drive component is provided with a connecting component. The connecting component extends into the salt bin body and is movably connected to the crushing roller, driving the crushing roller to move circumferentially on the screen plate. The blowing end is located at the lower end of the screen plate and is used to increase the internal temperature of the salt bin body.

2. The powdered salt anti-caking purging device according to claim 1, characterized in that: The top of the salt tank body is equipped with an air outlet shell. Multiple first air vents are provided at the connection between the salt tank body and the air outlet shell. Multiple second air vents are provided at the upper end of the air outlet shell. A baffle plate is detachably connected inside the air outlet shell. A solenoid valve is installed inside the discharge port.

3. The powdered salt anti-caking purging device according to claim 1, characterized in that: The mesh plate includes a first screen and a second screen, which are installed on the salt tank body from top to bottom, and the aperture of the first screen is larger than that of the second screen.

4. The powdered salt anti-caking purging device according to claim 3, characterized in that: The driving component includes a drive motor and a shaft. The drive motor is mounted on the upper end of the salt tank body, and the output end of the drive motor is connected to the shaft. One end of the shaft extends into the salt tank body, and multiple connectors are connected to the outer periphery of the shaft.

5. The powdered salt anti-caking purging device according to claim 4, characterized in that: The connector includes a plurality of first mounting brackets and a plurality of second mounting brackets; the plurality of first mounting brackets are circumferentially arranged on the outside of the shaft and located at the upper end of the first screen; the plurality of second mounting brackets are circumferentially arranged on the outside of the shaft and located at the upper end of the second screen, and a crushing roller is rotatably connected to both the first mounting brackets and the second mounting brackets.

6. The powdered salt anti-caking purging device according to claim 5, characterized in that: Both the first mounting bracket and the second mounting bracket have guide protrusions on their tops, and the number of the first mounting bracket and the second mounting bracket is at least three.

7. The powdered salt anti-caking purging device according to claim 6, characterized in that: The salt bin body has a sliding groove inside and above the first and second screens. The first and second mounting brackets are equipped with sliders that are slidably connected to the sliding grooves.

8. The powdered salt anti-caking purging device according to claim 7, characterized in that: The crushing roller includes a first roller body and a second roller body. The first roller body is rotatably connected to the lower end of the first mounting frame, and the second roller body is rotatably connected to the lower end of the second mounting frame. The first roller body can move circumferentially on the first screen, and the second roller body can move circumferentially on the second screen.

9. The powdered salt anti-caking purging device according to claim 8, characterized in that: The blowing end includes a box, a conduit, and an air pump. Multiple heating tubes are arranged equidistantly inside the box, and the lower end of the box is connected to a conduit. The end of the conduit is connected to one end of the air pump, and the other end of the air pump is connected to one end of an annular pipe. The annular pipe is arranged inside the salt tank body and is located below the second screen. Multiple air jets are arranged at the lower end of the annular pipe, and an aeration plate is also provided on the outer periphery of the salt tank body. A pipe is connected to the aeration plate.

10. The powdered salt anti-caking purging device according to claim 1, characterized in that: The outer periphery of the salt tank body is also provided with a support member, which includes a connecting block and several support legs. The connecting block is fixed to the outer periphery of the salt tank body, and multiple support legs are arranged circumferentially on the connecting block.

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