Anti-crystallization feeding device for anhydrous sodium sulphate production

Abstract

The utility model belongs to the technical field of anhydrous sodium sulphate production equipment, and particularly relates to an anti-crystallization feeding device for anhydrous sodium sulphate production, which comprises a material box, a feeding hole is formed in the top of the material box, and the feeding hole is suitable for guiding anhydrous sodium sulphate into the material box; the finished product bin is arranged at the bottom of the material box, the finished product bin is communicated with the material box, and a discharging pipe is arranged on the finished product bin, so that through the arrangement of the screening part, when the anhydrous sodium sulphate enters the material box through the feeding opening, the screening part can screen the anhydrous sodium sulphate, and the screening efficiency is improved; according to the method, only the anhydrous sodium sulphate meeting the particle size requirement can enter the finished product bin through the screening part and is finally guided out to the next procedure through the discharging pipe, the caked anhydrous sodium sulphate can be blocked in the material box, the anhydrous sodium sulphate in the finished product bin can be kept in a loose state, and the influence of the caking phenomenon on the finished product quality is expected to be reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of sodium sulfate production equipment, specifically relating to an anti-crystallization feeding device for sodium sulfate production. Background Technology

[0002] Sodium sulfate, a salt formed by the combination of sulfate and sodium ions, has the chemical formula Na₂SO₄. This compound dissolves in water, usually producing a neutral solution, and is soluble in glycerol but insoluble in ethanol. As an inorganic compound, high-purity, finely granulated anhydrous sodium sulfate is known as Glauber's salt. Glauber's salt is a white, odorless, bitter-tasting crystalline or powdery substance that is hygroscopic. It can exist as large, colorless, transparent crystals or smaller crystals.

[0003] In existing technologies, the industrial production process of sodium sulfate requires a dedicated feeding device to ensure continuous operation by directionally transferring raw materials through the material conveying system. In traditional processes, the storage silo forms a material transfer channel with the feeding system via a closed pipeline. However, this structure has significant drawbacks: sodium sulfate stored in an open silo is in long-term contact with ambient air, and its surface easily absorbs water vapor from the air, causing hygroscopic crystallization and agglomeration. This agglomeration not only reduces the flowability of the material but also leads to quality problems such as excessive particle size distribution in the final product. Utility Model Content

[0004] In view of this, the present invention provides an anti-crystallization feeding device for sodium sulfate production, the purpose of which is to reduce the agglomeration rate of sodium sulfate finished product and improve the quality of the final product.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A feeding device for preventing crystallization in the production of sodium sulfate includes a feed hopper, the top of which has a feed inlet suitable for introducing sodium sulfate into the feed hopper.

[0007] The finished product bin is located at the bottom of the material bin and is connected to the material bin. The finished product bin is equipped with a discharge pipe.

[0008] The finished product silo is connected to the material box by a screening section, which is used to screen the sodium sulfate in the material box and introduce it into the finished product silo.

[0009] As a preferred technical solution, the bottom of the screening section is provided with a vibrating element, which abuts against the bottom of the screening section and drives the screening section to vibrate.

[0010] Furthermore, it also includes a buffer component, which includes a fixed platform disposed on the inner wall of the finished product silo, located below the screening section; and a spring connected between the fixed platform and the screening section.

[0011] Furthermore, the screening section includes a screen and a waste plate. The screen is located at the top of the finished product bin, and the waste plate is located at one end of the screen and connected to the inner wall of the bin.

[0012] Furthermore, it also includes a waste discharge port and a waste bin. The waste discharge port is located at the connection between the bin and the waste plate. The waste bin is located outside the finished product warehouse and below the waste discharge port.

[0013] Furthermore, the inner wall of the waste inlet is inclined toward the waste bin.

[0014] Furthermore, the inside of the feed inlet is provided with a box cover, and the bottom of the box cover is provided with a sealing plug, which abuts against the inner wall of the feed inlet.

[0015] Furthermore, the material box is provided with a material guiding section inside, which is located between the feed inlet and the screening section. The material guiding section includes a guide plate that is inclined toward the screening section.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0017] By setting up a screening section, when sodium sulfate enters the material box through the feed inlet, the screening section can screen the sodium sulfate to ensure that only sodium sulfate that meets the particle size requirements can pass through the screening section and enter the finished product silo. Finally, it is discharged to the next process through the discharge pipe. This method can block the sodium sulfate that has already clumped in the material box, so that the sodium sulfate in the finished product silo can remain in a loose state, in order to reduce the impact of clumping on the quality of the finished product. Attached Figure Description

[0018] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0019] Figure 1 This is an internal plan view of the anti-crystallization feeding device for sodium sulfate production provided by this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the material box provided by this utility model;

[0021] Figure 3 This is a top view of the screening section provided by this utility model.

[0022] Material bin-1; Bin cover-2; Sealing plug-3; Material guide section-4; Screening section-5; Fixed platform-6; Spring-7; Finished product bin-8; Discharge pipe-9; Waste discharge port-10; Vibrating element-11; Waste bin-12; Waste plate-13; Screen-14. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] In existing technologies, during the industrial production of sodium sulfate, the material conveying system must utilize a specialized feeding device to ensure the directional transfer of raw materials, thereby guaranteeing the continuity of the production process. In traditional processes, storage silos are connected to the feeding system via closed pipelines, forming a material transport channel. However, this structure has significant drawbacks: sodium sulfate stored in open silos, due to prolonged exposure to ambient air, easily absorbs water vapor from the air, leading to hygroscopic crystallization and agglomeration. This agglomeration not only reduces the material's flowability but may also cause the final product's particle size distribution to exceed standards, thus affecting product quality.

[0026] Therefore, in order to solve the above problems and achieve the functions of reducing the agglomeration rate of sodium sulfate and improving the quality of the final product, this utility model discloses an anti-crystallization feeding device for sodium sulfate production. (See attached document.) Figures 1-3 The system includes a material bin 1, with a feed inlet at the top for introducing sodium sulfate into the bin 1; a finished product bin 8, located at the bottom of the material bin 1 and connected to the material bin 1, with a discharge pipe 9 on the finished product bin 8; wherein a sieving section 5 is provided at the connection between the finished product bin 8 and the material bin 1, the sieving section 5 being used to sieve the sodium sulfate in the material bin 1 and introduce it into the finished product bin 8.

[0027] In this embodiment, when sodium sulfate enters the feed box 1 through the feed inlet, the screening section 5 can screen the sodium sulfate to ensure that only sodium sulfate that meets the particle size requirements can pass through the screening section 5 and enter the finished product silo 8. Finally, it is discharged to the next process through the discharge pipe 9. This method can block the sodium sulfate that has already clumped in the feed box 1, so that the sodium sulfate in the finished product silo 8 can remain in a loose state, in order to reduce the impact of clumping on the quality of the finished product.

[0028] In a specific embodiment, the screening unit 5 includes a screen 14 and a waste plate 13. The screen 14 is located at the top of the finished product bin 8, and the waste plate 13 is disposed at one end of the screen 14 and connected to the inner wall of the material bin 1. When the screen 14 screens the sodium sulfate, larger particles or clumps of sodium sulfate are intercepted by the screen 14 and slide down along the screen 14 onto the waste plate 13. The waste plate 13 helps to collect unqualified sodium sulfate clumps uniformly and avoids them from being mixed in with the finished product.

[0029] In addition, in one embodiment, the screen 14 is inclined and there is an angle between the waste plate 13 and the screen 14. This arrangement allows the blocks blocked by the screen 14 to slide smoothly onto the waste plate 13, thereby preventing the blocks from rolling back onto the screen 14.

[0030] Furthermore, the inside of the feed inlet is provided with a box cover 2, and the bottom of the box cover 2 is provided with a sealing plug 3. The sealing plug 3 abuts against the inner wall of the feed inlet. In the initial state or after the feeding is completed, the box cover 2 is located inside the feed inlet. The feeding inlet is sealed by the sealing plug 3, which improves the sealing performance inside the material box 1 and prevents the sodium sulfate from hygroscopic crystallization and agglomeration during storage.

[0031] Optionally, the sealing plug 3 is made of rubber to enhance the sealing effect.

[0032] Example 2

[0033] Based on Example 1, see [link / reference] Figure 2 In order to further improve the sieving efficiency of sodium sulfate, the bottom of the sieving section 5 is provided with a vibrating element 11, which abuts against the bottom of the sieving section 5 and drives the sieving section 5 to vibrate.

[0034] The vibrating element 11 can be made of two single-axis vibrators of the same model and specification stacked side by side and operating in opposite directions, driving the screening section 5 to vibrate in an approximately linear manner. This allows the sodium sulfate particles on the screening section 5 to be subjected to continuous vibration, thereby enhancing the screening effect. This vibration helps to break the adhesion between sodium sulfate particles, allowing qualified particles to pass through the screen 14 more easily, while unqualified clumps are blocked, ensuring the quality of the sodium sulfate entering the finished product silo 8.

[0035] In addition, the use of the vibrator 11 can help reduce the clogging of the screen 14 and extend the service life of the screening section 5. Specifically, through continuous vibration, the sodium sulfate continuously vibrates on the screen 14, making the screen 14 less prone to clogging by sodium sulfate particles, thus ensuring the continuity and efficiency of screening.

[0036] Understandably, the vibration frequency and amplitude of the vibrating element 11 can be adjusted according to the production needs of sodium sulfate in order to achieve the best screening effect.

[0037] Furthermore, the bottom of the screening section 5 is also equipped with a buffer component, which includes a fixed platform 6, which is disposed on the inner wall of the finished product bin 8 and located below the screening section 5; and a spring 7, which is connected between the fixed platform 6 and the screening section 5. When the vibrating element 11 is activated, the spring 7 can buffer and dampen the vibration, reducing the impact of the vibration generated by the vibrating element 11 on the overall structure of the device and improving the stability and service life of the device. At the same time, the elasticity of the spring 7 can also allow the screening section 5 to maintain a certain degree of flexibility during vibration, further enhancing the screening effect.

[0038] Example 3

[0039] Based on Example 1, see [link / reference] Figure 1 In order to facilitate the recycling of clumps on the waste plate 13, a waste discharge port 10 and a waste bin 12 are also included. The waste discharge port 10 is opened at the connection between the bin 1 and the waste plate 13, and the waste bin 12 is located outside the finished product bin 8 and below the waste discharge port 10.

[0040] Through the waste discharge port 10, the sodium sulfate clumps intercepted by the screening section 5 can slide down into the waste bin 12, facilitating subsequent centralized processing and recycling.

[0041] In one embodiment, the inner wall of the waste inlet 10 is inclined toward the waste bin 12 to ensure that the agglomerated sodium sulfate can fall freely into the waste bin 12 through the waste inlet 10, thereby avoiding the accumulation or blockage of agglomerated particles at the waste inlet 10 and ensuring the smooth discharge of waste.

[0042] In another embodiment, the waste outlet 10 is annular and has an internal pipe that connects to the waste bin 12. This arrangement helps prevent clumps from falling outside the waste bin 12 and improves the sealing of the bin 1, reducing the entry of external air into the bin 1. However, this connection method is difficult to avoid blockage by clumps in the pipe. Therefore, the shape of the waste outlet 10 and the connection method with the waste bin 12 can be set according to the specific application scenario.

[0043] Example 4

[0044] Based on Examples 1 to 3, see Figure 1 In order to further improve the screening efficiency of the screening section 5, the material box 1 is provided with a material guide section 4. The material guide section 4 is located between the feed inlet and the screening section 5. The material guide section 4 includes a guide plate that is inclined toward the screening section 5.

[0045] Specifically, when the user feeds sodium sulfate into the feed hopper 1 through the inlet, if it is fed directly, the sodium sulfate will all accumulate on the screen 14 at once. This not only causes excessive local pressure on the screen 14, affecting the screening effect, but may also damage the screen 14. The guide section 4 guides the sodium sulfate falling from the inlet, allowing it to slide slowly along the guide plate to the screening section 5, thus achieving uniform distribution of the sodium sulfate. This uniform distribution method effectively reduces the working pressure on the screen 14, improves screening efficiency, and extends the service life of the screen 14. In practice, the angle of the guide plate can be adjusted according to actual production needs to achieve the best distribution effect.

[0046] In addition, optionally, the guide plate is set with an arc-shaped structure and the surface of the guide plate is provided with a polished layer. The arc-shaped structure and the polished layer can reduce the friction and resistance of the sodium sulfate on the guide plate, so that the sodium sulfate can slide more smoothly into the screening section 5, avoiding the accumulation or jamming of sodium sulfate on the guide plate.

[0047] Meanwhile, the use of the feeding section 4 can also disperse and buffer the sodium sulfate to a certain extent before it enters the screening section 5, thus avoiding the problem of damage to the screen 14 or uneven screening caused by the sodium sulfate directly impacting the screen 14.

[0048] In summary, based on Examples 1 to 4, the operating steps of the anti-crystallization feeding device for sodium sulfate production are as follows:

[0049] First, open the box cover 2 and feed the sodium sulfate into the feed box 1 through the feed inlet. After feeding is completed, close the box cover 2 and seal the feed inlet with the sealing plug 3 to prevent the sodium sulfate from absorbing moisture and crystallizing during storage.

[0050] Secondly, after the sodium sulfate falls from the feed inlet, it is guided by the guide plate of the guide section 4 and slowly slides down to the screening section 5, achieving uniform material distribution, reducing the working pressure of the screen 14, improving screening efficiency and extending the service life of the screen 14.

[0051] Then, the vibrator 11 is started, which drives the screening section 5 to vibrate, breaking the adhesion between the sodium sulfate particles. The sodium sulfate that meets the particle size requirements enters the finished product silo 8 through the screen 14. Larger particles or clumps of sodium sulfate are intercepted by the screen 14 and slide down the screen 14 onto the waste plate 13.

[0052] Next, the sodium sulfate clumps intercepted by the screening section 5 slide down the waste discharge port 10 into the waste bin 12 for subsequent centralized processing and recycling. If the waste discharge port 10 is connected to the waste bin 12 by a pipe, care should be taken to prevent clumps from clogging the pipe.

[0053] Finally, the sodium sulfate that has entered the finished product silo 8 is discharged to the next process through the discharge pipe 9, completing the entire feeding and screening process. This ensures that the sodium sulfate entering the next process remains in a loose state, reduces the agglomeration rate, and improves the quality of the finished product.

[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A feeding device for preventing crystallization in the production of sodium sulfate, characterized in that, include: Material box (1), the top of the material box (1) is provided with a feed inlet, which is suitable for introducing sodium sulfate into the material box (1); Finished product silo (8), the finished product silo (8) is located at the bottom of the material box (1), the finished product silo (8) is connected to the material box (1), and the finished product silo (8) is provided with a discharge pipe (9); The finished product silo (8) and the material box (1) are connected by a screening section (5), which is used to screen the sodium sulfate in the material box (1) and introduce it into the finished product silo (8).

2. The anti-crystallization feeding device for sodium sulfate production according to claim 1, characterized in that, The bottom of the screening section (5) is provided with a vibrating element (11), which abuts against the bottom of the screening section (5) and drives the screening section (5) to vibrate.

3. The anti-crystallization feeding device for sodium sulfate production according to claim 1, characterized in that, It also includes a buffer, the buffer comprising: A fixed platform (6) is provided on the inner wall of the finished product warehouse (8) and is located below the screening section (5); A spring (7) is connected between the fixed platform (6) and the screening section (5).

4. The anti-crystallization feeding device for sodium sulfate production according to claim 2, characterized in that, The screening section (5) includes a screen (14) and a waste plate (13). The screen (14) is located at the top of the finished product bin (8), and the waste plate (13) is located at one end of the screen (14) and is connected to the inner wall of the material box (1).

5. The anti-crystallization feeding device for sodium sulfate production according to claim 4, characterized in that, It also includes a waste outlet (10) and a waste bin (12). The waste outlet (10) is located at the connection between the material bin (1) and the waste plate (13). The waste bin (12) is located outside the finished product warehouse (8) and below the waste outlet (10).

6. The anti-crystallization feeding device for sodium sulfate production according to claim 5, characterized in that, The inner wall of the waste inlet (10) is inclined toward the waste bin (12).

7. The anti-crystallization feeding device for sodium sulfate production according to claim 1, characterized in that, The feed inlet is provided with a box cover (2), and the bottom of the box cover (2) is provided with a sealing plug (3), which abuts against the inner wall of the feed inlet.

8. The anti-crystallization feeding device for sodium sulfate production according to claim 1, characterized in that, The material box (1) is provided with a material guiding part (4) inside. The material guiding part (4) is located between the feed inlet and the screening part (5). The material guiding part (4) includes a guide plate that is inclined toward the screening part (5).

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