A device for adding iodine to table salt

Abstract

The utility model relates to a kind of salt iodizing device, comprising: mixing bucket, including bucket body and bucket cover;Salt feeding mechanism is set to the upper end of bucket body, and its one end is provided with the salt adding mouth that protrudes outside mixing bucket, the other end is provided with the salt falling mouth that is inserted into mixing bucket and opening downward, for conveying table salt to mixing bucket;Spreading mechanism, including the propeller that is set to the directly below salt falling mouth, for scattering and upward spreading of falling table salt, to form the dispersed salt curtain in mixing bucket;Atomization iodine spraying mechanism is set to mixing bucket and its injection direction is towards salt curtain, for spraying atomization iodine solution to the table salt in spreading;And stirring mechanism is set to the bottom surface of bucket body, for stirring the table salt in the bottom of mixing bucket;Compared with prior art, solve the problem of uneven mixing, easy to block;Mixing efficiency is high, and there are few dead angles, improve the uniformity of table salt iodizing.

Description

Technical Field

[0001] This utility model relates to the field of salt processing technology, and more specifically, to a salt iodization device. Background Technology

[0002] Salt, an indispensable condiment in daily life, is also an important carrier for the human body to ingest the essential trace element iodine. To effectively prevent iodine deficiency disorders, the addition of iodine to salt has become a widespread and necessary public health measure. Therefore, the uniformity and efficiency of the salt iodization process are directly related to the effectiveness of iodine deficiency disorder prevention and control, as well as food safety.

[0003] Traditional methods of iodizing salt often involve mixing and stirring, typically by directly spraying or pouring iodine solution into a large amount of salt, followed by mechanical mixing. However, this method has revealed several technical bottlenecks in practical applications. First, the contact area between the iodine solution and salt particles is limited, causing the iodine solution to tend to accumulate locally and be difficult to distribute evenly in a short time. This often results in some salt having excessive iodine content while others have insufficient iodine content, affecting the uniformity and stability of product quality.

[0004] Traditional spraying methods often result in larger droplets or fixed spray paths, which can easily cause salt to clump together. This not only affects the mixing effect but also requires an additional crushing process, increasing energy consumption and process complexity. Furthermore, salt is usually relatively stationary or only agitated at the bottom during mixing. Iodine solution mainly relies on gravity to fall and diffuse, resulting in insufficient dynamic interaction between the solution and salt particles, leading to low mixing efficiency and difficulty in achieving a rapid and thorough coating effect.

[0005] In existing equipment, the salt falls in a concentrated manner during the feeding process, lacking an effective dispersion mechanism, which further exacerbates the risk of uneven mixing. At the same time, if the stirring mechanism only operates at the bottom, its mixing capacity for the materials in the entire mixing tank, especially the materials in the middle and upper layers, is limited, and there may be mixing dead zones.

[0006] For large-scale, continuous industrial production, finding a technical solution that can achieve rapid, efficient, and uniform mixing of iodine solution and salt is particularly urgent. Therefore, the industry urgently needs a new type of salt iodization device to improve the uniformity and efficiency of iodization.

[0007] The salt iodization device described in Chinese utility model patent CN223055498U includes: a mixing tank with an inlet; an inclined guide plate disposed in the mixing tank to divide the internal space of the mixing tank into a first chamber and a second chamber arranged vertically; a discharge port connecting the first chamber and the second chamber on the inclined lower side of the inclined guide plate; and an inclined upper side of the inclined guide plate extending to a position corresponding to the inlet to receive salt falling from the inlet; a first stirring assembly disposed in the second chamber; a nozzle disposed in the second chamber and corresponding to the discharge port to spray iodine solution onto the salt falling from the discharge port; an iodine solution tank connected to the nozzle to supply iodine solution to the nozzle; and a salt feeder; wherein the iodine solution tank is equipped with a heating mechanism. Although it can achieve a certain degree of uniform iodization of the salt, the salt is not evenly dispersed during spraying, and the sprayed iodine droplets are not fine and uniform enough, which can easily affect the effect of iodizing the salt. Utility Model Content

[0008] The main purpose of this invention is to provide a device for iodizing salt.

[0009] To solve the above-mentioned technical problems, this utility model proposes a salt iodization device, comprising: a mixing tank, including a tank body and a tank lid; a salt feeding mechanism, disposed at the upper end of the tank body, having a salt feeding port extending out of the mixing tank at one end and a salt dropping port extending into the mixing tank with its opening facing downwards at the other end, for conveying salt into the mixing tank; a spreading mechanism, including a propeller disposed directly below the salt dropping port, for scattering the falling salt upwards to form a dispersed salt curtain within the mixing tank; an atomizing iodine spraying mechanism, disposed within the mixing tank with its spraying direction facing the salt curtain, for spraying atomized iodine solution onto the spreading salt; and a stirring mechanism, disposed at the bottom of the tank body, for stirring the salt at the bottom of the mixing tank.

[0010] In the above technical solution, the salt feeding mechanism further includes: a salt feeding shell with an installation cavity inside; a spiral shaft rotatably disposed in the installation cavity; and a salt feeding motor disposed on the salt feeding shell, the output shaft of which is connected to one end of the spiral shaft for driving the spiral shaft to rotate.

[0011] In any of the above technical solutions, the spreading mechanism further includes a spreading motor and a transmission component driven by the spreading motor, with the propeller installed at the output end of the transmission component.

[0012] In any of the above technical solutions, the transmission component further includes: a first gear, coaxially connected to the propeller; and a second gear, disposed on the output shaft of the spreading motor; wherein the first gear meshes with the second gear.

[0013] In any of the above technical solutions, the atomizing iodine spraying mechanism further includes: an iodine tank for containing iodine solution; a delivery pipe, one end of which is connected to the iodine tank and extends into the iodine tank, and the other end of which passes through the side wall of the tank body and extends into the mixing tank; a liquid pump, located at the end of the delivery pipe that extends into the iodine tank, for delivering iodine solution into the delivery pipe; and a distributor, located inside the tank body, having an inclined surface at its upper end pointing towards the center of the mixing tank, with several outlets arranged horizontally on the inclined surface, and an inlet at the end of the distributor that is in contact with the tank body, connected to the end of the delivery pipe that extends into the mixing tank, and the inlet connected to all the outlets.

[0014] In any of the above technical solutions, the liquid outlet is further configured to be angled upwards.

[0015] In any of the above technical solutions, an atomizing component is further provided inside the liquid outlet, and the atomizing component has a through hole at the center, with a large inner diameter at both ends and a small inner diameter in the middle.

[0016] In any of the above technical solutions, the stirring mechanism further includes: a stirring shaft, rotatably mounted on the barrel body, extending through the bottom surface of the barrel body into the mixing barrel; several stirring blades, radially mounted on the stirring shaft, evenly arranged around the circumference of the stirring shaft; and a stirring motor, mounted on the barrel body, with its output shaft connected to the stirring shaft to drive the stirring shaft to rotate.

[0017] Beneficial effects: Compared with existing technologies, it solves the problems of uneven mixing and easy clumping; it has high mixing efficiency, fewer dead corners, and improves the uniformity of iodized salt. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the liquid separator of this utility model.

[0020] The annotations in the attached figures are explained as follows: 1. Mixing tank; 11. Tank body; 12. Tank lid; 2. Salt feeding mechanism; 21. Salt feeding shell; 211. Salt filling port; 212. Salt dropping port; 22. Spiral shaft; 23. Salt feeding motor; 3. Spreading mechanism; 31. Propeller; 32. Spreading motor; 33. Transmission assembly; 331. First gear; 332. Second gear; 4. Atomizing iodine spraying mechanism; 41. Iodine solution tank; 42. Liquid delivery pipe; 43. Liquid pump; 44. Distributor; 441. Liquid outlet; 442. Liquid inlet; 45. Atomizing component; 5. Stirring mechanism; 51. Stirring shaft; 52. Stirring blade; 53. Stirring motor Detailed Implementation

[0021] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of the embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0022] It should be noted that, as shown in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements.

[0023] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0026] This utility model proposes a device for iodizing table salt.

[0027] The salt iodization device of this application will be described in detail below through the following embodiments.

[0028] Example 1: like Figure 1 , 2 As shown in Figure 3, this embodiment proposes a salt iodization device, including: a mixing tank 1, including a tank body 11 and a tank cover 12; a salt feeding mechanism 2, disposed on the upper end of the tank body 11, having a salt feeding port 211 extending out of the mixing tank 1 at one end and a salt dropping port 212 extending into the mixing tank 1 with its opening facing downwards at the other end, for conveying salt into the mixing tank 1; a spreading mechanism 3, including a propeller 31 disposed directly below the salt dropping port 212, for scattering the falling salt and spreading it upwards to form a dispersed salt curtain in the mixing tank 1; an atomizing iodine spraying mechanism 4, disposed in the mixing tank 1 with its spraying direction facing the salt curtain, for spraying atomized iodine solution onto the salt being spread; and a stirring mechanism 5, disposed on the bottom surface of the tank body 11, for stirring the salt at the bottom of the mixing tank 1.

[0029] The salt iodization device proposed in this embodiment uses a mixing tank 1 to provide space for salt iodization and also as a frame to support various mechanisms. The salt feeding mechanism 2 is installed on the upper end of the tank body 11. Through its own structure, it introduces salt from the salt inlet 211 extending out of the tank, and then continuously conveys it into the mixing tank 1 through the salt drop outlet 212 extending into the tank with its opening facing downwards. At the same time, the spreading mechanism 3, located directly below the salt drop outlet 212, is activated. Its propeller 31 generates an impact force through mechanical rotation, which disperses the salt falling from the salt drop outlet 212, and the upward impact of the rotation on the salt disperses the salt particles. The salt is sprinkled upwards, creating a uniformly dispersed salt curtain within the mixing tank 1. Subsequently, the atomizing iodine spraying mechanism 4 within the mixing tank 1 sprays atomized iodine solution towards this salt curtain, ensuring that the fine iodine droplets fully contact and fuse with the dispersed salt particles. Finally, the stirring mechanism 5 installed on the bottom of the tank 11 is activated, and its mechanical components rotate to stir and agitate the salt at the bottom of the mixing tank 1, preventing the salt from accumulating and clumping at the bottom or causing uneven mixing due to the iodine flowing under gravity. This further promotes deep mixing of the salt and iodine solution, ultimately achieving a uniform mixing of materials without significant clumping during the salt iodization process.

[0030] Existing salt iodization equipment primarily uses mixing and stirring as the mixing method, which has significant drawbacks. First, salt transportation and dispersion are disconnected. Salt is mostly fed directly by gravity, lacking a stable transportation and dispersion mechanism. This results in concentrated salt fall, which tends to accumulate in clumps and cannot form a uniform material layer, potentially causing uneven mixing of the iodine solution later. Second, the contact efficiency between the iodine solution and the salt is low. Existing equipment often uses direct pouring or large droplet spraying of iodine solution, resulting in limited contact area between the iodine solution and salt particles. Furthermore, the salt is not dispersed, easily leading to some salt having excessive iodine content and others insufficient iodine content. Third, it is prone to clumping. The large droplets of the existing spraying method easily cause the salt to absorb moisture and clump together, requiring an additional crushing process later.

[0031] The device described in this embodiment achieves a comprehensive effect of improved mixing uniformity, reduced risk of clumping, and improved mixing efficiency. The mixing uniformity of salt and iodine solution is significantly improved, ensuring uniform iodine content and avoiding local over- or under-iodization. It effectively reduces salt clumping, eliminates the need for additional crushing processes, and simplifies the production process. To address the issues of scattered and disjointed salt delivery and concentrated falling salt, the salt delivery mechanism 2 uses a spiral shaft 22 to stably and uniformly deliver salt to the salt inlet 212. The propeller 31 of the spreading mechanism 3 directly acts on the falling salt, breaking it up and spreading it to form a salt curtain, replacing the disordered state of traditional gravity feeding, thus achieving uniform dispersion of salt. The atomizing iodine spraying mechanism 4 sprays atomized iodine solution directionally toward the salt curtain, significantly increasing the contact area between the fine droplets and the dispersed suspended salt particles. At the same time, the dynamic state of the salt curtain can prevent local accumulation of iodine solution, solving the problem of insufficient contact of traditional large droplets. The fine droplets of atomized iodine spray reduce the risk of salt absorbing moisture and clumping. The bottom stirring mechanism 5 rotates to cover most of the bottom area of ​​the barrel, causing the salt at the bottom to turn upwards and the salt on the side walls to flow, preventing the salt from stagnating and accumulating.

[0032] Example 2: This embodiment is a further improvement based on Embodiment 1.

[0033] like Figure 2 , 3 As shown, in this embodiment, The salt feeding mechanism 2 achieves continuous and uniform salt delivery through a screw drive. The salt feeding housing 21 forms a sealed mounting cavity, providing a stable channel for salt delivery. The screw shaft 22 is rotatably mounted within the mounting cavity, its axis aligned with the extending direction of the salt feeding housing 21. The salt feeding motor 23 is fixed to the end of the salt feeding housing 21, and its output shaft is directly connected to one end of the screw shaft 22 to transmit power.

[0034] When the salt delivery motor 23 starts, its output shaft drives the spiral shaft 22 to rotate. Salt enters the mounting cavity from the salt inlet 211 extending out of the mixing tank 1. The propulsive force generated by the rotation of the spiral shaft 22 gradually pushes the salt along the inside of the mounting cavity, and finally it falls continuously from the salt drop outlet 212, which extends into the mixing tank 1 and faces downwards. During the process, the pushing action of the spiral structure prevents the salt from accumulating or being interrupted during delivery.

[0035] Traditional salt conveying methods often employ gravity feeding or simple conveyor belt structures, which are prone to jamming and blockage due to salt absorbing moisture and clumping. Furthermore, the supply volume fluctuates significantly during conveying, leading to supply interruptions or accumulation. Some screw conveyor systems fail to account for foreign objects; if stones, iron blocks, or other foreign objects enter, the screw shaft can easily jam, requiring the entire device to be disassembled, severely impacting production efficiency. Simultaneously, feeding structures directly connected to large silos can experience uneven salt density due to pressure variations in the silo, further exacerbating the uneven supply problem and affecting the accuracy of subsequent iodization.

[0036] The beneficial effects of salt feeding mechanism 2 are: to achieve continuous, uniform and stable delivery of salt, reduce the risk of material jamming and blockage, reduce interference from foreign objects, ensure the accuracy of material supply for subsequent iodization processes, and improve production continuity.

[0037] Example 3: This embodiment is a further improvement based on any of the above embodiments.

[0038] like Figure 2 , 3 As shown, in this embodiment, The spreading mechanism 3 is driven by a motor and gears, and then uses a propeller 31 to impact the falling salt, thus dispersing and spreading the salt. The propeller 31 is located directly below the salt inlet 212, and its blades are radially distributed to directly contact the falling salt. The spreading motor 32 is fixed at a suitable position on the mixing tank 1. The transmission assembly 33 consists of a first gear 331 and a second gear 332 that mesh with each other. The second gear 332 is mounted on the output shaft of the spreading motor 32, and the first gear 331 is coaxially and fixedly connected to the propeller 31.

[0039] During operation, after the spreading motor 32 starts, its output shaft drives the second gear 332 to rotate. Through the gear meshing relationship, the second gear 332 drives the first gear 331 to rotate synchronously, which in turn drives the propeller 31 to rotate at high speed. The salt falling from the salt inlet 212 directly impacts the blades of the rotating propeller 31, and is broken into fine particles by the impact force of the blades. At the same time, under the impact of the propeller 31, the salt is scattered upwards, eventually forming a uniformly dispersed salt curtain in the mixing tank 1, creating conditions for full contact between the iodine solution and the salt.

[0040] The existing salt iodization process lacks an efficient spreading structure, resulting in salt falling in clumps or concentrated areas, failing to form a uniformly dispersed material layer. Some devices use vibrating screens or scrapers to disperse the salt, which not only has poor dispersion but also easily leads to repeated breakage of salt particles, generating excessive dust. This dust preferentially adsorbs iodine solution, causing uneven distribution of iodine content. At the same time, insufficiently dispersed salt tends to accumulate in local areas, preventing the iodine solution from fully contacting the salt and further reducing the uniformity of iodization.

[0041] The spreading mechanism 3 achieves efficient dispersion of salt and forms a uniform salt curtain, reduces dust generation during the salt particle crushing process, significantly increases the contact area between iodine solution and salt, reduces iodine content fluctuations, and improves the uniformity of iodine addition.

[0042] The propeller 31 is positioned directly below the salt inlet 212. The high-speed rotating blades can directly impact the falling salt, breaking up lumps or concentrated salt into fine particles. The impact causes the salt particles to be scattered upwards, forming a salt curtain with a wide coverage area, replacing the inefficient dispersion method of traditional vibrating screens or scrapers. The radial design of the propeller 31 blades allows it to continuously impact and lift the salt under the drive of the motor, making the structure of the scattering mechanism 3 simple and effective. The formation of a uniform salt curtain allows the salt particles to fall in a dispersed state within the mixing tank 1, reducing the possibility of local accumulation and providing conditions for the comprehensive spraying of subsequent atomized iodine solution, reducing dead zones in iodine solution contact and reducing fluctuations in iodine content.

[0043] Example 4: This embodiment is a further improvement based on any of the above embodiments.

[0044] like Figure 2 , 3 As shown in Figures 4 and 5, in this embodiment, The atomizing iodine spraying mechanism 4 achieves uniform atomization and spraying of iodine solution through power transmission, diversion guidance, and throttling atomization. The iodine solution tank 41 provides a sealed space for iodine solution storage. One end of the delivery pipe 42 extends into the iodine solution tank 41, and the other end penetrates the side wall of the tank 11 to enter the mixing tank 1, forming an iodine solution delivery channel. The liquid pump 43 is installed at the end of the delivery pipe 42 that extends into the iodine solution tank 41, serving as the power source for iodine solution delivery.

[0045] The separator 44 is fixed inside the mixing tank 1. One end of the separator, which is in contact with the tank body 11, has an inlet 442 that connects to the end of the delivery pipe 42 that extends into the mixing tank 1. The inlet 442 is connected to several outlets 441 on the inclined surface at the upper end of the separator 44. The inclined surface faces the center of the mixing tank 1 to prevent falling salt from remaining on the separator 44. Each outlet 441 has an atomizing component 45 installed inside. This component has a through hole in the center, with a larger inner diameter at both ends and a smaller inner diameter in the middle, forming an atomizing structure.

[0046] During operation, the liquid pump 43 starts to draw iodine solution from the iodine tank 41 and delivers it to the inlet 442 of the distributor 44 through the delivery pipe 42. The iodine solution flows and splits inside the distributor 44 and is sprayed out through multiple outlets 441. When the iodine solution flows through the central fine hole of the atomizing component 45, the pressure change caused by the contraction of the channel cross-section disperses the iodine solution into fine droplets, which are sprayed obliquely upwards into the salt curtain formed by the dispersion, achieving full contact between the iodine solution and the salt particles.

[0047] Existing iodization devices mostly use a high-level tank gravity-flow dripping method, where the iodine solution falls in the form of columns or large droplets, resulting in a small contact area with the salt and uneven iodine adhesion, leading to a low product qualification rate. Although some existing technologies use compressed air atomization equipment, which can improve the atomization effect, the equipment is expensive, the vulnerable parts are difficult to procure, and there is a serious waste of iodine solution. Some single-hole nozzle atomization devices have a limited spray range, which can easily create dead zones in the iodine solution distribution in the mixing area. At the same time, the atomized particles are too large and cannot fully combine with the dispersed salt particles, exacerbating the fluctuation of iodine content.

[0048] The device described in this embodiment achieves efficient atomization and uniform spraying of iodine solution over a wide area, improves the binding efficiency of iodine solution and salt, reduces iodine waste, and improves product qualification rate and adjustment convenience without relying on expensive equipment.

[0049] The atomizing structure of the atomizing component 45 causes the iodine solution to form fine droplets, which greatly increases the contact area between the droplets and the dispersed salt particles in the salt curtain. This replaces the large droplet shape of gravity-fed dripping, improves the uniformity of iodine adhesion, and can improve the product qualification rate. Through the combination of the liquid pump 43, the distributor 44 and the atomizing component 45, there is no need for compressed air equipment, which is low-cost and the vulnerable parts are easy to replace. The multi-outlet design of the distributor 44 allows the iodine solution to evenly cover the salt curtain area, avoiding local overspray and reducing iodine waste. The outlets 441 of the distributor 44 are arranged horizontally and obliquely upward, which allows the atomized iodine solution to cover the entire area of ​​the salt curtain, eliminating spray dead zones. At the same time, the fine droplets can fully combine with the salt particles with the airflow, further reducing the fluctuation of iodine content.

[0050] Example 5: This embodiment is a further improvement based on any of the above embodiments.

[0051] like Figure 2 , 3 As shown, in this embodiment, The stirring mechanism 5 employs shaft drive and radial stirring to agitate and secondary mix the salt at the bottom of the mixing tank 1. The stirring shaft 51 is rotatably mounted at the center of the bottom surface of the tank body 11, with its upper end extending into the mixing tank 1 and its lower end connected to the output shaft of the stirring motor 53 outside the tank body 11, forming a power transmission path. Several stirring blades 52 are radially fixed to the extension end of the stirring shaft 51, evenly distributed along the circumference of the stirring shaft 51, with the extension direction of the stirring blades 52 perpendicular to the stirring shaft 51.

[0052] When the stirring motor 53 starts, the output shaft drives the stirring shaft 51 to rotate at a constant speed. Simultaneously, the stirring shaft 51 drives all the stirring blades 52 to rotate in a circular motion. During rotation, the stirring blades 52 come into contact with the salt at the bottom of the mixing tank 1. The thrust of the blades pushes the salt at the bottom to flow circumferentially and tumble up and down, preventing salt from accumulating at the bottom and forming mixing dead zones. At the same time, it further stirs the salt, which has already been initially mixed with iodine solution, to ensure a consistent iodine content throughout the entire device. The existing mixing equipment has a limited coverage area for the mixing mechanism 5, which easily creates dead zones at the bottom, side walls, and corners of the mixing tank 1. This causes some salt to remain stagnant for a long time and cannot be fully mixed with the iodine solution. Some single-spiral mixing devices can only move the material axially, which is not effective in turning over the salt deposited at the bottom of the tank. This easily leads to stratification, where heavy materials sink and light materials float, resulting in localized high or low iodine content. At the same time, the lack of a targeted bottom mixing structure causes the initially mixed salt to re-accumulate under gravity, further expanding the error range of iodine content.

[0053] The device described in this embodiment reduces the stirring dead zones at the bottom and side walls of the mixing tank 1, avoids material stratification, achieves secondary homogenization of salt and iodine solution, ensures consistent iodine content of salt throughout the device, and reduces iodine content error.

[0054] The stirring blades 52 are radially distributed and evenly arranged around the stirring shaft 51. When the stirring shaft 51 rotates, the stirring blades 52 can cover most of the bottom area of ​​the mixing tank 1. At the same time, the thrust of the blades can drive the salt at the bottom to flow to the side wall, preventing the salt at the bottom, side wall and corners from remaining still and eliminating the dead corner problem of existing stirring. The inclined design and circumferential motion of the stirring blades 52 can push the salt deposited at the bottom to turn upwards, while driving the middle and upper layer materials to surge and fall, breaking the stratification state of heavy materials sinking and light materials floating, and ensuring that the iodine solution and salt particles are in full contact. The stirring mechanism 5 performs secondary stirring on the initially mixed salt and iodine. Even if some salt re-accumulates due to gravity, it can be dispersed again by the turning of the stirring blades 52 and mixed with the iodine solution, further reducing the error range of iodine content and ensuring the consistency of iodine content in the final product.

[0055] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A device for iodizing table salt, characterized in that, include: A mixing bucket (1), comprising a bucket body (11) and a bucket lid (12); A salt feeding mechanism (2) is provided on the upper end of the barrel (11). One end of the mechanism is provided with a salt inlet (211) extending out of the mixing barrel (1), and the other end is provided with a salt drop outlet (212) extending into the mixing barrel (1) and opening downwards, for conveying salt into the mixing barrel (1). The spreading mechanism (3) includes a propeller (31) located directly below the salt drop outlet (212) for breaking up the falling salt and spreading it upwards to form a dispersed salt curtain in the mixing tank (1); The atomizing iodine spraying mechanism (4) is set inside the mixing tank (1) and its spraying direction is towards the salt curtain, for spraying atomized iodine solution onto the salt being scattered; And a stirring mechanism (5) is provided on the bottom surface of the barrel (11) for stirring the salt at the bottom of the mixing barrel (1).

2. The salt iodization device according to claim 1, characterized in that, The salt delivery mechanism (2) includes: Salt delivery shell (21), which has an installation cavity inside; The spiral shaft (22) is rotatably disposed within the mounting cavity; A salt feeding motor (23) is mounted on the salt feeding housing (21), and its output shaft is connected to one end of the spiral shaft (22) to drive the spiral shaft (22) to rotate.

3. The salt iodization device according to claim 1, characterized in that, The spreading mechanism (3) also includes a spreading motor (32) and a transmission assembly (33) driven by the spreading motor (32), and the propeller (31) is installed at the output end of the transmission assembly (33).

4. The salt iodization device according to claim 3, characterized in that, The transmission assembly (33) includes: The first gear (331) is coaxially connected to the propeller (31); The second gear (332) is disposed on the output shaft of the spreading motor (32); The first gear (331) meshes with the second gear (332).

5. The salt iodization device according to claim 1, characterized in that, The atomizing iodine spraying mechanism (4) includes: Iodine solution tank (41), used to hold iodine solution; The liquid delivery pipe (42) is connected at one end to the iodine solution tank (41) and extends into the iodine solution tank (41), and at the other end passes through the side wall of the barrel body (11) and extends into the mixing barrel (1); A liquid pump (43) is installed at one end of the liquid delivery pipe (42) that extends into the iodine tank (41) to deliver iodine solution into the liquid delivery pipe (42); A liquid separator (44) is installed inside the barrel (11). Its upper end is provided with an inclined surface towards the center of the mixing barrel (1). Several liquid outlets (441) are arranged horizontally on the inclined surface. The liquid separator (44) is provided with an inlet (442) at one end that is attached to the barrel (11). It is connected to the end of the liquid delivery pipe (42) that extends into the mixing barrel (1). The inlet (442) is connected to all the liquid outlets (441).

6. The salt iodization device according to claim 5, characterized in that, The liquid outlet (441) is set at an angle upward.

7. The salt iodization device according to claim 5, characterized in that, An atomizing component (45) is provided inside the liquid outlet (441). The atomizing component (45) has a through hole in the center. The inner diameter of the through hole is large at both ends and small in the middle.

8. The salt iodization device according to claim 1, characterized in that, The stirring mechanism (5) includes: A stirring shaft (51) is rotatably mounted on the barrel body (11) and extends through the bottom surface of the barrel body (11) into the mixing barrel (1); There are several stirring blades (52), which are radially arranged on the stirring shaft (51) and uniformly arranged around the stirring shaft (51); A stirring motor (53) is mounted on the barrel (11), and its output shaft is connected to the stirring shaft (51) to drive the stirring shaft (51) to rotate.

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