Iodine adding device for salt production

Abstract

The utility model provides an iodinating device for salt production. The iodinating device comprises an iodinating pretreatment unit and an iodinating unit, the iodization pretreatment unit comprises a first stock bin, a first feeding and mixing all-in-one machine and a cleaning system. The discharging end of the first stock bin is connected with the feeding end of the first feeding and mixing all-in-one machine. The cleaning system is used for spraying atomized cleaning liquid into an inner cavity of the feeding and mixing all-in-one machine I; the iodization unit comprises a second stock bin, a second feeding and mixing all-in-one machine and an iodization system; the feeding end of the second stock bin is connected with the discharging end of the first feeding and mixing all-in-one machine, and the discharging end of the second stock bin is connected with the feeding end of the second feeding and mixing all-in-one machine. And the iodinating system sprays an iodine solution into the inner cavity of the feeding and mixing integrated machine II. The iodizing device for salt production is reasonable in structural design, dust on the surface of salt can be cleaned in advance, then the salt enters the iodizing unit to be continuously and quantitatively metered, iodized and mixed, the product can be bright and glossy, the iodizing precision and uniformity are improved, and the fluctuation range of the iodine content in the salt product is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of salt production, and particularly relates to an iodine addition device for salt production. Background Art

[0002] In order to prevent the occurrence of iodine deficiency disorders, usually ordinary salt is used as a carrier, and a small amount of potassium iodate or other iodine-containing substances are added and stirred evenly to make an iodine-containing salt product. The existing iodine addition method is usually to directly stir and mix a certain amount of prepared iodine solution with a certain amount of dried salt. However, existing salt products, especially crushed and washed salt products, will more or less entrain some dust during the drying process, resulting in a dull color of the salt products; at the same time, due to the presence of dust, it will have a certain impact on the accuracy of iodine addition and mixing. The added iodine cannot be evenly attached to the surface of salt particles, but partially adheres to the dust, resulting in low accuracy and uniformity of iodine addition, and a large fluctuation range of iodine content in the obtained salt products; in addition, the existing iodine addition device has a complex structure, a high equipment investment cost, inconvenient operation, and multiple high-power motors are equipped to evenly mix salt and iodine solution, resulting in high energy consumption and high production costs. Summary of the Invention

[0003] In view of this, to solve the above technical problems, the utility model provides an iodine addition device for salt production. Through a reasonable structural design, the salt is pre-treated by an iodine addition pre-treatment unit, and the atomized cleaning liquid cools, moistens the salt and dissolves the dust and impurities on the surface of the salt, thoroughly cleaning it, making the salt product crystal clear and shiny, improving the product quality; then it enters the iodine addition unit, and the added iodine can be evenly attached to the salt particles, effectively improving the accuracy and uniformity of iodine addition, reducing the fluctuation range of iodine content in the salt products; in addition, a structure integrating feeding and mixing is adopted, with low investment cost, convenient operation and low energy consumption.

[0004] To achieve the above object, the technical solution of the utility model is realized as follows:

[0005] An iodine addition device for salt production, comprising:

[0006] An iodine addition pre-treatment unit, including a first material bin, a first feeding and mixing machine and a cleaning system; the discharging end of the first material bin is connected to the feeding end of the first feeding and mixing machine; the cleaning system sprays atomized cleaning liquid into the inner cavity of the first feeding and mixing machine;

[0007] An iodine addition unit, including a second material bin, a second feeding and mixing machine and an iodine addition system; the feeding end of the second material bin is connected to the discharging end of the first feeding and mixing machine, and the discharging end of the second material bin is connected to the feeding end of the second feeding and mixing machine; the iodine addition system sprays iodine solution into the inner cavity of the second feeding and mixing machine.

[0008] The salt first enters into the first feeding and mixing machine, where it is sprayed with the atomized cleaning liquid, causing the salt to cool down, become moist, and dissolve the dust and impurities on the surface of the salt, achieving thorough cleaning, making the produced salt product crystal clear and shiny; then it enters into the second feeding and mixing machine, where it is sprayed with iodine solution. Since the dust has been removed, the added iodine can be evenly attached to the salt particles, which is more conducive to improving the accuracy and uniformity of iodine addition and narrowing the fluctuation range of iodine content in the salt products.

[0009] Further, level gauges are provided on both the first bin and the second bin.

[0010] Further, both the first feeding and mixing machine and the second feeding and mixing machine include a housing, a baffle with a material passing port arranged in the inner cavity of the housing, a quantitative metering feeding section arranged in front of the baffle, and a mixing section arranged behind the baffle; spiral blades are provided in both the quantitative metering feeding section and the mixing section. The quantitative metering feeding section is a tube spiral structure, and the mixing section is a U-shaped spiral structure; the discharge end of the first bin is connected to the feeding port of the quantitative metering feeding section of the first feeding and mixing machine, and the cleaning system sprays atomized cleaning liquid into the inner cavity of the mixing section of the first feeding and mixing machine; the feeding end of the second bin is connected to the discharge port of the mixing section of the first feeding and mixing machine, the discharge end of the second bin is connected to the feeding port of the quantitative metering feeding section of the second feeding and mixing machine, and the iodine addition system sprays iodine solution into the inner cavity of the mixing section of the second feeding and mixing machine.

[0011] Both the first feeding and mixing machine and the second feeding and mixing machine are of an integrated feeding and mixing structure, with low investment cost, convenient operation, and low energy consumption; the tube spiral structure of the quantitative metering feeding section allows the salt to be almost full in it, playing the role of quantitatively metering the salt and feeding it into the mixing section. The U-shaped spiral structure of the mixing section has a relatively large diameter and a large space, which can scatter the incoming salt, and can fully shake and mix the sprayed cleaning liquid or iodine solution, playing the role of full stirring;

[0012] Due to the differences between the tube spiral structure and the U-shaped spiral structure, the material quantities they can hold are different, causing the salt to be scattered in the mixing section after being quantitatively metered in the quantitative metering feeding section, making the cleaning liquid spray more evenly onto the salt and being fully stirred and mixed with the atomized cleaning liquid; the cleaned salt is sent into the second feeding and mixing machine, and after being quantitatively metered by the quantitative metering feeding section of the second feeding and mixing machine, it is sent into the mixing section of the second feeding and mixing machine. Similarly, due to the differences between the tube spiral structure and the U-shaped spiral structure, the salt is scattered in the mixing section after being quantitatively metered in the quantitative metering feeding section, making the iodine solution spray more evenly onto the salt particles and being fully stirred and mixed with the iodine solution.

[0013] Furthermore, the driving motors of the feeding and mixing integrated machine 1 and the feeding and mixing integrated machine 2 are both arranged at the end of their respective mixing sections, and the quantitative metering feeding section and the mixing section share a driving motor, which simplifies the structure and reduces energy consumption.

[0014] Furthermore, the diameter of the U-shaped spiral structure of the mixing section is 1 to 3 levels larger than the diameter of the tube spiral structure of the quantitative metering feeding section; the length ratio of the quantitative metering feeding section and the mixing section is 1:1 to 5; the diameter of the feed port of the baffle is the same as the inner diameter of the tube spiral of the quantitative metering feeding section.

[0015] The diameter of the U-shaped spiral structure of the mixing section is 1 to 3 levels larger than the diameter of the tube spiral structure of the quantitative metering feeding section. The length ratio of the quantitative metering feeding section to the mixing section is 1:1 to 5. The quantitative metering feeding section and the mixing section are separated by a baffle with a feeding port. The quantitative metering of the salt can be achieved first, and then the quantitatively measured salt enters the mixing section with a larger spatial structure with a reasonable proportion range to be fully stirred and mixed.

[0016] Furthermore, the front section of the mixing section of the feeding and mixing integrated machine is provided with a cleaning chamber connected to its inner cavity; the cleaning liquid spraying end of the cleaning system is connected to the inner cavity of the cleaning chamber.

[0017] Furthermore, the cleaning system includes a cleaning liquid tank, an atomizing nozzle, a cleaning liquid pipe connecting the cleaning liquid tank and the atomizing nozzle, and a cleaning liquid metering pump arranged on the cleaning liquid pipe; the atomizing nozzle is arranged in the cleaning room.

[0018] The cleaning liquid is sent into the atomizing nozzle by the cleaning liquid metering pump, sprayed out after atomization, falls into the inner cavity of the mixing section through the cleaning chamber, and sprays onto the salt in the mixing section, cooling and moistening the salt and dissolving the dust and impurities on the surface of the salt to fully clean it.

[0019] Furthermore, the front section of the mixing section of the second feeding and mixing integrated machine is provided with an iodine adding chamber connected to its inner cavity; the iodine liquid spraying end of the iodine adding system is connected to the inner cavity of the iodine adding chamber.

[0020] Furthermore, the iodine addition system includes an iodine liquid tank, an iodine addition nozzle, an iodine liquid pipe connecting the iodine liquid tank and the iodine addition nozzle, and an iodine liquid metering pump arranged on the iodine liquid pipe; the iodine addition nozzle is arranged in the iodine addition chamber.

[0021] The iodine liquid is fed into the iodine adding nozzle by the iodine liquid metering pump, sprayed out after being atomized, falls into the inner cavity of the mixing section through the iodine adding chamber, and sprays onto the salt in the mixing section to evenly add iodine to the salt.

[0022] Furthermore, the material discharge port of the mixing section is arranged at the lower side of the tail portion thereof, and a material detection port is arranged at the upper side of the tail portion of the mixing section.

[0023] The level gauge of bin 1 is interlocked with the drive motor of the feeding and mixing machine 1 and the cleaning liquid metering pump of the cleaning system. When the level in bin 1 is high, the drive motor of the feeding and mixing machine 1 and the cleaning liquid metering pump of the cleaning system can be started simultaneously. When the level in bin 1 is low, the drive motor of the feeding and mixing machine 1 and the cleaning liquid metering pump of the cleaning system can be closed simultaneously. The level gauge of bin 2 is interlocked with the drive motor of the feeding and mixing machine 2 and the iodine liquid metering pump of the iodine addition system. When the level in bin 2 is high, the drive motor of the feeding and mixing machine 2 and the iodine liquid metering pump of the iodine addition system can be started simultaneously. When the level in bin 2 is low, the drive motor of the feeding and mixing machine 2 and the iodine liquid metering pump of the iodine addition system can be closed simultaneously.

[0024] Compared with the prior art, the iodine addition device for salt production of the present utility model has the following advantages:

[0025] (1) The structure of the iodine addition device for salt production of the present utility model is reasonably designed. The salt is pre-treated before iodine addition. The atomized cleaning liquid cools and moistens the salt and dissolves the dust and impurities on the surface of the salt, achieving full cleaning. The salt product is crystal clear and shiny, improving the product quality. Since the dust is removed, and combined with the continuous quantitative metering and iodine addition and mixing of the iodine addition unit, the added iodine can be evenly attached to the salt particles, effectively improving the accuracy and uniformity of iodine addition, and reducing the fluctuation range of iodine content in the salt product. The prepared salt product has a brighter color and luster on the appearance, and the whiteness is increased by 2 - 5 degrees. The iodine content in the salt meets the national standard, and the fluctuation range error is less than ±20%, far lower than ±30% in the prior art.

[0026] (2) The iodine addition device for salt production of the present utility model adopts a structure of integrating feeding and mixing, with low investment cost, convenient operation and low energy consumption. By designing a reasonable structure and length ratio of the quantitative metering feeding section and the mixing section, sufficient stirring and mixing of the materials can be achieved. Through interlock control, continuous quantitative metering of the salt and continuous cleaning and iodine addition operations can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0028] Figure 1 is a schematic structural diagram of the iodine addition device for salt production according to the embodiment of the present utility model.

[0029] Description of the reference numerals:

[0030] 1 - Hopper 1; 2 - Feeding and Mixing Machine 1; 3 - Hopper 2; 4 - Feeding and Mixing Machine 2; 5 - Housing; 6 - Baffle; 7 - Quantitative Metering Feeding Section; 8 - Mixing Section; 9 - Driving Motor; 10 - Discharge Port; 11 - Material Detection Port; 12 - Cleaning Liquid Tank; 13 - Atomizing Nozzle; 14 - Cleaning Liquid Pipe; 15 - Cleaning Liquid Metering Pump; 16 - Cleaning Chamber; 17 - Iodine Solution Tank; 18 - Iodine Adding Nozzle; 19 - Iodine Solution Pipe; 20 - Iodine Solution Metering Pump; 21 - Iodine Adding Chamber. Detailed Embodiment

[0031] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0034] The present invention will be described in detail below with reference to the drawings and in combination with embodiments.

[0035] A salt iodine addition device includes an iodine addition pretreatment unit and an iodine addition unit;

[0036] The iodine addition pretreatment unit includes Hopper 1, Feeding and Mixing Machine 1 and a cleaning system;

[0037] The iodine addition unit includes Hopper 2, Feeding and Mixing Machine 2 and an iodine addition system;

[0038] Level gauges are provided on both Hopper 1 and Hopper 2;

[0039] Both the feeding and mixing machine 1 and the feeding and mixing machine 2 include a housing 5, a baffle 6 with a material passing opening disposed in the inner cavity of the housing 5, a quantitative metering feeding section 7 disposed in front of the baffle 6, and a mixing section 8 disposed behind the baffle 6; both the quantitative metering feeding section 7 and the mixing section 8 are provided with spiral blades, the quantitative metering feeding section 7 is a tube spiral structure, and the mixing section 8 is a U-shaped spiral structure; the diameter of the U-shaped spiral structure of the mixing section 8 is 1 to 3 levels larger than the diameter of the tube spiral structure of the quantitative metering feeding section 7, the length ratio of the quantitative metering feeding section 7 to the mixing section 8 is 1:1 to 5, and the diameter of the material passing opening of the baffle 6 is the same as the inner diameter of the tube of the tube spiral of the quantitative metering feeding section 7; the drive motors 9 of both the feeding and mixing machine 1 and the feeding and mixing machine 2 are disposed at the ends of their respective mixing sections 8, and the quantitative metering feeding section 7 and the mixing section 8 share a drive motor 9; the discharging end of the material bin 1 is connected to the feeding port of the quantitative metering feeding section 7 of the feeding and mixing machine 1, the feeding end of the material bin 2 is connected to the discharging port 10 of the mixing section 8 of the feeding and mixing machine 1, and the discharging end of the material bin 2 is connected to the feeding port of the quantitative metering feeding section 7 of the feeding and mixing machine 2; the discharging port 10 of the mixing section 8 is disposed at the lower side of its tail, and a material detection port 11 is provided at the upper side of the tail of the mixing section 8;

[0040] The cleaning system includes a cleaning liquid tank 12, an atomizing nozzle 13, a cleaning liquid pipe 14 connecting the cleaning liquid tank 12 and the atomizing nozzle 13, and a cleaning liquid metering pump 15 disposed on the cleaning liquid pipe 14; a cleaning chamber 16 communicating with its inner cavity is provided at the front section of the mixing section 8 of the feeding and mixing machine 1, and the atomizing nozzle 13 is disposed in the cleaning chamber 16;

[0041] The iodine addition system includes an iodine liquid tank 17, an iodine addition nozzle 18, an iodine liquid pipe 19 connecting the iodine liquid tank 17 and the iodine addition nozzle 18, and an iodine liquid metering pump 20 disposed on the iodine liquid pipe 19; an iodine addition chamber 21 communicating with its inner cavity is provided at the front section of the mixing section 8 of the feeding and mixing machine 2, and the iodine addition nozzle 18 is disposed in the iodine addition chamber 21;

[0042] The level gauge of the material bin 1 is interlocked with the drive motor 9 and the cleaning liquid metering pump 15 of the feeding and mixing machine 1; the level gauge of the material bin 2 is interlocked with the drive motor 9 and the iodine liquid metering pump 20 of the feeding and mixing machine 2

[0043] The working process of the salt iodine addition device described in the present utility model is as follows:

[0044] S1. The salt after the drying process is sent into the material bin 1, and then into the feeding and mixing machine 1, and the rotation speed of the drive motor 9 of the feeding and mixing machine 1 is controlled to be 30 revolutions per minute;

[0045] S2. The salt is first quantitatively metered through the quantitative metering and feeding section 7 of the feeding and mixing machine 2 and then sent into the mixing section 8 of the feeding and mixing machine 2. The diameter of the U-shaped spiral structure in the mixing section 8 is one level larger than that of the tube spiral structure in the quantitative metering and feeding section 7, and the length ratio of the quantitative metering and feeding section 7 to the mixing section 8 is 1:2.

[0046] S3. The cleaning system sprays atomized cleaning water into the inner cavity of the mixing section 8 of the feeding and mixing machine 2 to cool down, moisten the salt in the mixing section 8 and dissolve the dust and impurities on the surface of the salt. At the same time, the spiral blades in the mixing section 8 stir and scatter the salt, so that the cleaning liquid is evenly sprayed on the salt, and the salt is continuously stirred and mixed and pushed towards the discharge port 10. The salt enters the second storage bin 3 through the discharge port 10.

[0047] S4. The salt in the second storage bin 3 is sent into the feeding and mixing machine 2. The rotation speed of the drive motor 9 of the feeding and mixing machine 2 is controlled to be 30 revolutions per minute. It is first quantitatively metered through the quantitative metering and feeding section 7 of the feeding and mixing machine 2 and then sent into the mixing section 8 of the feeding and mixing machine 2. The diameter of the U-shaped spiral structure in the mixing section 8 is one level larger than that of the tube spiral structure in the quantitative metering and feeding section 7, and the length ratio of the quantitative metering and feeding section 7 to the mixing section 8 is 1:2.

[0048] S5. The iodine addition system sprays iodine solution into the inner cavity of the mixing section of the feeding and mixing machine 2 to add iodine to the salt in the mixing section 8. The mass concentration of the iodine solution is 2%. At the same time, the spiral blades in the mixing section 8 stir and scatter the salt, so that the iodine solution is evenly sprayed on the salt, and the salt is continuously stirred and mixed and pushed towards the discharge port 10. The salt is discharged through the discharge port 10 to obtain a salt product with bright color and uniform iodine addition.

[0049] In the prior art, the salt is directly dried by a drying bed and then sent to the iodine addition process for spraying and mixing to add iodine. The obtained salt products have a dull color, poor whiteness, and the iodine content in the salt fluctuates within a range of about ±30%.

[0050] The color whiteness, iodine content and the fluctuation range of iodine content of the product are detected: It is detected that the salt product prepared in this embodiment has a brighter color in appearance, and the whiteness is improved by 2 - 5 degrees compared with the product prepared by the prior art. The iodine content in the salt meets the national standard, and the error of the fluctuation range is less than ±20%.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An iodine addition device for salt production, characterized in that, Including: The pre-iodination treatment unit includes a first storage bin, a first feeding and mixing machine, and a cleaning system; the discharge end of the first storage bin is connected to the feeding end of the first feeding and mixing machine; the cleaning system sprays atomized cleaning liquid into the inner cavity of the first feeding and mixing machine. The iodination unit includes a second storage bin, a second feeding and mixing machine, and an iodination system; the feeding end of the second storage bin is connected to the discharge end of the first feeding and mixing machine, and the discharge end of the second storage bin is connected to the feeding end of the second feeding and mixing machine; the iodination system sprays iodine liquid into the inner cavity of the second feeding and mixing machine.

2. The iodine addition device for salt production according to claim 1, wherein: Level gauges are provided on both the first storage bin and the second storage bin.

3. The iodine addition device for salt production according to claim 1, characterized in that: Both the first feeding and mixing machine and the second feeding and mixing machine include a housing, a baffle with a material passing port arranged in the inner cavity of the housing, a quantitative metering feeding section arranged in front of the baffle, and a mixing section arranged behind the baffle; spiral blades are provided in both the quantitative metering feeding section and the mixing section. The quantitative metering feeding section is a tube spiral structure, and the mixing section is a U-shaped spiral structure; the discharge end of the first storage bin is connected to the feeding port of the quantitative metering feeding section of the first feeding and mixing machine, and the cleaning system sprays atomized cleaning liquid into the inner cavity of the mixing section of the first feeding and mixing machine; the feeding end of the second storage bin is connected to the discharge port of the mixing section of the first feeding and mixing machine, the discharge end of the second storage bin is connected to the feeding port of the quantitative metering feeding section of the second feeding and mixing machine, and the iodination system sprays iodine liquid into the inner cavity of the mixing section of the second feeding and mixing machine.

4. The iodine addition device for salt production according to claim 3, wherein: The drive motors of both the first feeding and mixing machine and the second feeding and mixing machine are arranged at the end of their respective mixing sections, and the quantitative metering feeding section and the mixing section share one drive motor.

5. The iodine addition device for salt production according to claim 3, wherein: The diameter of the U-shaped spiral structure of the mixing section is 1 - 3 levels larger than that of the tube spiral structure of the quantitative metering feeding section; the length ratio of the quantitative metering feeding section to the mixing section is 1:1 - 5; the diameter of the material passing port of the baffle is the same as the inner diameter of the tube of the tube spiral of the quantitative metering feeding section.

6. The iodine addition device for salt production according to claim 3, wherein: A cleaning chamber communicating with its inner cavity is provided at the front section of the mixing section of the first feeding and mixing machine; the cleaning liquid spraying end of the cleaning system is communicated with the inner cavity of the cleaning chamber.

7. The iodine addition device for salt production according to claim 6, characterized in that: The cleaning system includes a cleaning liquid tank, an atomizing nozzle, a cleaning liquid pipe connecting the cleaning liquid tank and the atomizing nozzle, and a cleaning liquid metering pump arranged on the cleaning liquid pipe; the atomizing nozzle is arranged in the cleaning chamber.

8. The iodine addition device for salt production according to claim 3, characterized in that: An iodination chamber communicating with its inner cavity is provided at the front section of the mixing section of the second feeding and mixing machine; the iodine liquid spraying end of the iodination system is communicated with the inner cavity of the iodination chamber.

9. The iodine addition device for salt production according to claim 8, wherein: The iodination system includes an iodine liquid tank, an iodination nozzle, an iodine liquid pipe connecting the iodine liquid tank and the iodination nozzle, and an iodine liquid metering pump arranged on the iodine liquid pipe; the iodination nozzle is arranged in the iodination chamber.

10. The iodine addition device for salt production according to claim 3, characterized in that: The discharge port of the mixing section is arranged at the lower side of its tail, and a material detection port is arranged at the upper side of the tail of the mixing section.

Images