A premixing tank for producing soda ash from waste sodium sulfate

Abstract

The present disclosure relates to the technical field of chemical production equipment, and an embodiment of the present disclosure provides a premixing tank for preparing soda from waste sodium sulfate, which comprises a premixing tank, a top cover is fixedly installed at the top end of the premixing tank, and an inclined scraper rod is movably connected to the bottom of the left inner surface of the premixing tank. By arranging the inclined scraper rod, the vertical scraper rod, the horizontal scraper rod, the driven gear and the driving gear, when the first motor is started, the first rotating shaft will drive the driving gear to rotate, because the outer surface of the first rotating shaft is in meshing connection with the outer surface of the driven gear, so under the action of the driving gear, the driven gear will rotate through the round shaft with the horizontal scraper rod, so that the vertical scraper rod and the inclined scraper rod will rotate along the inner wall of the premixing tank with the horizontal scraper rod. In this way, the solid particles adhered to the inner wall of the premixing tank can be cleaned through the cooperation of the inclined scraper rod, the vertical scraper rod and the horizontal scraper rod, thereby solving the technical problem that the solid particles are easily adhered to the inner wall in the prior art.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of chemical production equipment technology, and more specifically, to a premixing tank for producing soda ash from waste sodium sulfate. Background Technology

[0002] Currently, there are four main methods for producing soda ash both domestically and internationally: the ammonia-soda process, the combined alkali process, natural soda ash processing, and caustic soda carbonization. Among these, the ammonia-soda process remains the most commonly used method in soda ash production and holds a significant advantage in the soda ash industry. my country's soda ash production methods mainly rely on the ammonia-soda process and the combined alkali process. Using by-product waste sodium sulfate as raw material, the ammonia-soda process is used to produce soda ash and co-produce ammonium sulfate. This not only achieves efficient utilization of sodium ions and sulfate ions, fundamentally solving the resource waste and environmental threats posed by sodium sulfate, but also supports the circular economy of related industries, which is of great significance to the construction of the industrial chain.

[0003] The metathesis method is an ideal method for preparing sodium carbonate from sodium sulfate. The basic principle is that sodium sulfate and ammonium carbonate undergo a metathesis reaction to produce sodium bicarbonate solid. The mother liquor after filtering sodium bicarbonate is further processed to obtain ammonium sulfate. When using waste sodium sulfate to produce soda ash, Na2SO4, H2O, NH4HCO3 and wet sodium sulfate need to be premixed in a premixing tank. However, the existing premixing tank still has shortcomings in actual use. When Na2SO4, H2O, NH4HCO3 and wet sodium sulfate are input into the premixing tank as raw materials, some solid particles will precipitate and adhere to the inner wall of the premixing tank. If these solid particles are not cleaned in time, some raw materials will easily be adsorbed on the solid particles, resulting in local high concentrations and aggravating the corrosion of the premixing tank. Therefore, this needs to be improved. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a premixing tank for producing soda ash from waste sodium sulfate, which solves the technical problem that solid particles are easily adhered to the inner wall in the prior art.

[0005] According to one aspect, at least one embodiment of this disclosure provides a premixing tank for producing soda ash from waste sodium sulfate, comprising a premixing tank, a top cover fixedly installed at the top of the premixing tank, an oblique scraper movably connected to the bottom of the left side of the inner surface of the premixing tank, a vertical scraper fixedly installed at the top of the oblique scraper, the left end of the vertical scraper movably connected to the left side of the inner surface of the premixing tank, a horizontal scraper fixedly installed at the top of the vertical scraper, the top of the horizontal scraper movably connected to the bottom end of the top cover, a round shaft fixedly installed on the right side of the top of the horizontal scraper, the outer surface of the round shaft movably sleeved with the inner surface of the middle of the top cover, a driven gear fixedly sleeved on the top of the outer surface of the round shaft, the bottom end of the driven gear movably connected to the top of the top cover, a first motor fixedly installed on the right side of the middle of the top of the top cover, a first rotating shaft fixedly sleeved at the other end of the output shaft of the first motor, a driving gear fixedly sleeved on the outer surface of the first rotating shaft, the bottom end of the driving gear movably connected to the top of the top cover, and the outer surface of the driving gear meshing with the outer surface of the driven gear.

[0006] As a preferred embodiment of this utility model, the bottom end of the top cover is provided with an annular groove, and a T-shaped block is movably sleeved inside the annular groove. The bottom end of the T-shaped block is fixedly connected to the top end of the horizontal scraper.

[0007] As a preferred embodiment of this utility model, a support plate is movably connected to the left side of the top center of the top cover, and a fixing frame is movably sleeved on the outer surface of the support plate, with the bottom end of the fixing frame fixedly connected to the top end of the top cover.

[0008] As a preferred embodiment of this utility model, a drive motor is fixedly installed on the right side of the top of the support plate, and a stirring shaft is fixedly sleeved on the other end of the output shaft of the drive motor. The bottom end of the stirring shaft passes through the round shaft and extends into the interior of the premix tank, where a stirring rod is fixedly installed.

[0009] As a preferred technical solution of this utility model, the front and rear ends of the fixed frame are respectively provided with limiting grooves, the bottom end of the limiting groove is movably sleeved with a limiting block, and the outer surface of the limiting block is fixedly connected to the outer surface of the support plate.

[0010] As a preferred embodiment of this utility model, a connecting block is fixedly installed at the bottom of the left end of the support plate, a long rod is fixedly installed at the left end of the connecting block, and the right end of the long rod is movably connected to the left end of the fixed frame.

[0011] As a preferred embodiment of this utility model, a short rod is movably sleeved at the middle of the inside of the long rod, a disc is fixedly installed at the left end of the short rod, and the right end of the disc is movably connected to the left end of the long rod.

[0012] As a preferred technical solution of this utility model, a support block is fixedly installed on the left side of the top center of the top cover, a second motor is fixedly installed on the top of the support block, and a second rotating shaft is fixedly sleeved on the other end of the output shaft of the second motor. The outer surface of the second rotating shaft and the inner surface of the middle end of the disc are fixedly sleeved together.

[0013] As a preferred embodiment of this utility model, a feed pipe is fixedly sleeved at each of the four corners of the top of the top cover, and a feed valve is fixedly installed at the top of the feed pipe.

[0014] As a preferred embodiment of this utility model, a discharge valve is fixedly installed at the bottom of the premix tank, and a discharge pipe is fixedly installed at the bottom of the discharge valve.

[0015] The beneficial effects of the embodiments disclosed herein are as follows:

[0016] 1. In this disclosure, by setting up an oblique scraper, a vertical scraper, a horizontal scraper, a driven gear, and a driving gear, when the first motor is started, the first rotating shaft will drive the driving gear to rotate. Since the outer surface of the first rotating shaft and the outer surface of the driven gear are meshed, under the action of the driving gear, the driven gear will drive the horizontal scraper to rotate through the round shaft, thereby causing the vertical scraper and the oblique scraper to rotate together with the horizontal scraper along the inner wall of the premix tank. In this way, the solid particles adhering to the inner wall of the premix tank can be cleaned by the mutual cooperation of the oblique scraper, the vertical scraper, the horizontal scraper, the driven gear, and the driving gear, thereby preventing solid particles from adhering to and accumulating on the inner wall of the premix tank.

[0017] 2. In this disclosure, by setting up a support plate, a connecting block, a long rod, a short rod, and a disc, when the second motor is started, the second rotating shaft will drive the disc and the short rod to rotate. Since the outer surface of the short rod and the inner surface of the long rod are movably connected, as the short rod rotates, the outer surface of the short rod will generate a thrust on the inner surface of the long rod, pushing the long rod, along with the connecting block, the support plate, the drive motor, the stirring shaft, and the stirring rod, to move along the inner surface of the fixed frame. This can improve the uniformity of raw material mixing and reduce the occurrence of stirring dead zones. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;

[0020] Figure 2 for Figure 1 A frontal cross-sectional view of the structure in the embodiment;

[0021] Figure 3 for Figure 1 A cross-sectional view of the fixed frame in the embodiment;

[0022] Figure 4 for Figure 2 A magnified schematic diagram of the local structure at point A;

[0023] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0024] In the diagram: 1. Premix tank; 2. Top cover; 3. Slanted scraper; 4. Vertical scraper; 5. Horizontal scraper; 6. Round shaft; 7. Driven gear; 8. First motor; 9. First rotating shaft; 10. Drive gear; 11. Annular groove; 12. T-block; 13. Support plate; 14. Fixing frame; 15. Drive motor; 16. Stirring shaft; 17. Stirring rod; 18. Limiting groove; 19. Limiting block; 20. Connecting block; 21. Long rod; 22. Short rod; 23. Disc; 24. Support block; 25. Second motor; 26. Second rotating shaft; 27. Feed pipe; 28. Feed valve; 29. ​​Discharge valve; 30. Discharge pipe. Detailed Implementation

[0025] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0026] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0027] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0028] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] like Figures 1 to 5 The diagram illustrates a premixing tank for producing soda ash from waste sodium sulfate according to an embodiment of this disclosure. The tank includes a premixing tank 1, a top cover 2 fixedly mounted on the top of the premixing tank 1, an inclined scraper 3 movably connected to the bottom left side of the inner surface of the premixing tank 1, a vertical scraper 4 fixedly mounted on the top of the inclined scraper 3, the left end of the vertical scraper 4 movably connected to the left side of the inner surface of the premixing tank 1, a horizontal scraper 5 fixedly mounted on the top of the vertical scraper 4, the top of the horizontal scraper 5 movably connected to the bottom end of the top cover 2, and a round shaft 6 fixedly mounted on the right side of the top of the horizontal scraper 5. The outer surface of shaft 6 is movably sleeved with the inner surface of the middle end of top cover 2. A driven gear 7 is fixedly sleeved on the top of the outer surface of shaft 6. The bottom end of driven gear 7 is movably connected with the top end of top cover 2. A first motor 8 is fixedly installed on the right side of the middle of the top end of top cover 2. A first rotating shaft 9 is fixedly sleeved on the other end of the output shaft of the first motor 8. A driving gear 10 is fixedly sleeved on the outer surface of the first rotating shaft 9. The bottom end of driving gear 10 is movably connected with the top end of top cover 2. The outer surface of driving gear 10 and the outer surface of driven gear 7 are meshed.

[0032] The oblique scraper 3, vertical scraper 4, and horizontal scraper 5 are all in close contact with the inner wall of the premix tank 1 and have smooth outer surfaces. This ensures that when the oblique scraper 3, vertical scraper 4, and horizontal scraper 5 rotate along the inner wall of the premix tank 1, they can completely scrape off the solid particles adhering to the inner wall of the premix tank 1. At the same time, the horizontal scraper 5 and the driven gear 7 are located on the upper and lower sides of the top cover 2 respectively and are in close contact with the top cover 2. Therefore, through the combined action of the horizontal scraper 5, the round shaft 6, and the driven gear 7, the stability of the rotation of the horizontal scraper 5, the round shaft 6, and the driven gear 7 can be ensured.

[0033] In some examples, the bottom end of the top cover 2 is provided with an annular groove 11, and a T-shaped block 12 is movably sleeved inside the annular groove 11. The bottom end of the T-shaped block 12 is fixedly connected to the top end of the horizontal scraper 5.

[0034] The interaction between the annular groove 11 and the T-block 12 will limit the rotation of the horizontal scraper 5, thereby further improving the stability of the horizontal scraper 5 during rotation.

[0035] In some examples, a support plate 13 is movably connected to the left side of the top center of the top cover 2, and a fixing frame 14 is movably sleeved on the outer surface of the support plate 13. The bottom end of the fixing frame 14 is fixedly connected to the top end of the top cover 2.

[0036] The support plate 13 is L-shaped and has reinforcing ribs on its inner wall, which can improve the support capacity of the support plate 13 and make the support plate 13 less prone to deformation. The presence of the fixing frame 14 can provide auxiliary limiting for the support plate 13.

[0037] In some examples, a drive motor 15 is fixedly installed on the right side of the top of the support plate 13, and a stirring shaft 16 is fixedly sleeved on the other end of the output shaft of the drive motor 15. The bottom end of the stirring shaft 16 passes through the round shaft 6 and extends into the interior of the premix tank 1, and a stirring rod 17 is fixedly installed thereon.

[0038] The stirring rods 17 are symmetrically and evenly distributed on the left and right sides of the outer surface of the stirring shaft 16, and the spacing between the stirring rods 17 is the same.

[0039] In some examples, the front and rear ends of the fixed frame 14 are respectively provided with limiting grooves 18, the bottom end of the limiting groove 18 is movably sleeved with a limiting block 19, and the outer surface of the limiting block 19 is fixedly connected to the outer surface of the support plate 13.

[0040] The inner surface of the limiting groove 18 and the outer surface of the limiting block 19 are both smooth, which ensures that the limiting block 19 will not get stuck when it moves along the inner surface of the limiting groove 18. At the same time, the cooperation between the limiting groove 18 and the limiting block 19 can prevent the support plate 13 and the fixed frame 14 from separating.

[0041] In some examples, a connecting block 20 is fixedly installed at the bottom left end of the support plate 13, a long rod 21 is fixedly installed at the left end of the connecting block 20, and the right end of the long rod 21 is movably connected to the left end of the fixed frame 14.

[0042] The connecting block 20 is used to connect the support plate 13 and the long rod 21, while the interior of the long rod 21 is a smooth rectangular groove.

[0043] In some examples, a short rod 22 is movably sleeved at the middle of the inside of the long rod 21, a disc 23 is fixedly installed at the left end of the short rod 22, and the right end of the disc 23 is movably connected to the left end of the long rod 21.

[0044] The diameter of the disk 23 is smaller than the length of the rectangular groove inside the long rod 21, thereby ensuring that the short rod 22 and the disk 23 are not restricted by the long rod 21 when they rotate around the center position of the disk 23.

[0045] In some examples, a support block 24 is fixedly installed on the left side of the top center of the top cover 2, a second motor 25 is fixedly installed on the top of the support block 24, and a second rotating shaft 26 is fixedly sleeved on the other end of the output shaft of the second motor 25. The outer surface of the second rotating shaft 26 is fixedly sleeved on the inner surface of the middle end of the disc 23.

[0046] The presence of the support block 24 will support and fix the second motor 25 and the second shaft 26, thereby ensuring the stability of the second motor 25 and the second shaft 26.

[0047] In some examples, the four corners of the top of the top cover 2 are respectively fixedly fitted with feed pipes 27, and feed valves 28 are fixedly installed at the top of the feed pipes 27.

[0048] The four feed valves 28 are respectively connected to the pipelines corresponding to Na2SO4, H2O, NH4HCO3 and wet sodium sulfate, so that the raw materials can be easily fed in after the feed valves 28 are opened.

[0049] In some examples, a discharge valve 29 is fixedly installed at the bottom of the premix tank 1, and a discharge pipe 30 is fixedly installed at the bottom of the discharge valve 29.

[0050] When the discharge valve 29 is opened, the premixed raw materials will enter the reactor through the discharge pipe 30 for reaction.

[0051] Working principle and usage process of this utility model:

[0052] In use, the operator starts the first motor 8, which causes the first rotating shaft 9 to drive the drive gear 10 to rotate. Since the drive gear 10 and the driven gear 7 mesh with each other, as the drive gear 10 rotates, the driven gear 7 will drive the horizontal scraper 5 to rotate around the axis of the circular shaft 6 via the circular shaft 6. At this time, the vertical scraper 4, which is fixedly connected to the horizontal scraper 5, will drive the oblique scraper 3 to rotate along the inner surface of the premix tank 1. In this way, the inner wall of the premix tank 1 can be cleaned by the cooperation of the oblique scraper 3, the vertical scraper 4 and the horizontal scraper 5, thereby preventing solid particles from sticking to the inner wall of the premix tank 1.

[0053] The operator can then start the second motor 25, causing the second rotating shaft 26 to drive the disc 23 to rotate. At this time, the short rod 22 will rotate with the disc 23 around the second rotating shaft 26, so that the outer surface of the short rod 22 generates a thrust on the inner surface of the long rod 21, pushing the long rod 21 through the connecting block 20 and carrying the support plate 13 and the drive motor 15 to move up and down along the inner surface of the fixed frame 14. Then the operator starts the drive motor 15, causing the stirring shaft 16 to drive the stirring rod 17 to rotate, thus starting the premixing operation. This achieves up and down cyclic stirring, thereby improving the uniformity of raw material mixing and reducing the occurrence of stirring dead zones.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A premixing tank for producing soda ash from waste sodium sulfate, comprising a premixing tank (1), characterized in that: A top cover (2) is fixedly installed on the top of the premix tank (1). A slanted scraper (3) is movably connected to the bottom of the left side of the inner surface of the premix tank (1). A vertical scraper (4) is fixedly installed on the top of the slanted scraper (3). The left end of the vertical scraper (4) is movably connected to the left side of the inner surface of the premix tank (1). A horizontal scraper (5) is fixedly installed on the top of the vertical scraper (4). The top end of the horizontal scraper (5) is movably connected to the bottom end of the top cover (2). A round shaft (6) is fixedly installed on the right side of the top of the horizontal scraper (5). The outer surface of the round shaft (6) is connected to the inner surface of the middle end of the top cover (2). The driven gear (7) is fixedly sleeved on the top of the outer surface of the round shaft (6). The bottom end of the driven gear (7) is movably connected to the top end of the top cover (2). The right side of the middle part of the top end of the top cover (2) is fixedly installed with a first motor (8). The other end of the output shaft of the first motor (8) is fixedly sleeved with a first rotating shaft (9). The outer surface of the first rotating shaft (9) is fixedly sleeved with a driving gear (10). The bottom end of the driving gear (10) is movably connected to the top end of the top cover (2). The outer surface of the driving gear (10) and the outer surface of the driven gear (7) are meshed.

2. The premixing tank for producing soda ash from waste sodium sulfate according to claim 1, characterized in that: The bottom end of the top cover (2) is provided with an annular groove (11), and a T-shaped block (12) is movably sleeved inside the annular groove (11). The bottom end of the T-shaped block (12) is fixedly connected to the top end of the horizontal scraper (5).

3. The premixing tank for producing soda ash from waste sodium sulfate according to claim 1, characterized in that: A support plate (13) is movably connected to the left side of the top center of the top cover (2). A fixing frame (14) is movably sleeved on the outer surface of the support plate (13). The bottom end of the fixing frame (14) is fixedly connected to the top end of the top cover (2).

4. A premixing tank for producing soda ash from waste sodium sulfate according to claim 3, characterized in that: A drive motor (15) is fixedly installed on the right side of the top of the support plate (13). A stirring shaft (16) is fixedly sleeved on the other end of the output shaft of the drive motor (15). The bottom end of the stirring shaft (16) passes through the round shaft (6) and extends into the interior of the premix tank (1) and is fixedly installed with a stirring rod (17).

5. A premixing tank for producing soda ash from waste sodium sulfate according to claim 3, characterized in that: The fixed frame (14) has a limiting groove (18) at both the front and rear ends. The bottom end of the limiting groove (18) is movably fitted with a limiting block (19). The outer surface of the limiting block (19) is fixedly connected to the outer surface of the support plate (13).

6. A premixing tank for producing soda ash from waste sodium sulfate according to claim 3, characterized in that: A connecting block (20) is fixedly installed at the bottom of the left end of the support plate (13), and a long rod (21) is fixedly installed at the left end of the connecting block (20). The right end of the long rod (21) is movably connected to the left end of the fixed frame (14).

7. A premixing tank for producing soda ash from waste sodium sulfate according to claim 6, characterized in that: A short rod (22) is movably sleeved at the middle of the inside of the long rod (21). A disc (23) is fixedly installed at the left end of the short rod (22). The right end of the disc (23) is movably connected to the left end of the long rod (21).

8. A premixing tank for producing soda ash from waste sodium sulfate according to claim 1, characterized in that: A support block (24) is fixedly installed on the left side of the top center of the top cover (2). A second motor (25) is fixedly installed on the top of the support block (24). A second rotating shaft (26) is fixedly sleeved on the other end of the output shaft of the second motor (25). The outer surface of the second rotating shaft (26) and the inner surface of the middle end of the disc (23) are fixedly sleeved.

9. A premixing tank for producing soda ash from waste sodium sulfate according to claim 1, characterized in that: The top of the top cover (2) is fixedly fitted with a feed pipe (27) at each of the four corners, and a feed valve (28) is fixedly installed at the top of the feed pipe (27).

10. A premixing tank for producing soda ash from waste sodium sulfate according to claim 1, characterized in that: The bottom end of the premix tank (1) is fixedly equipped with a discharge valve (29), and the bottom end of the discharge valve (29) is fixedly equipped with a discharge pipe (30).

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