Vertical sodium sulfate crystallizer

Abstract

The utility model relates to the technical field of sodium sulfate processing, and provides a vertical sodium sulfate crystallizer which comprises a crystallizing tank, a stirring motor is arranged at the upper end of the crystallizing tank, a circulation throttling assembly is arranged on one side of the crystallizing tank, and a crystallization stirring assembly is arranged in the crystallizing tank. The circulation throttling assembly comprises a flow guide pipe, the flow guide pipe is communicated with the side wall of the crystallizing tank, a throttling pipe is inserted into the flow guide pipe, a communicating pipe is arranged at one end of the throttling pipe, a driven gear is arranged on the outer side wall of the throttling pipe, positioning frames are arranged on the flow guide pipe and the communicating pipe, driving shafts are movably inserted into the positioning frames, and the driving gear is meshed with the driven gear. An intercepting piece is arranged in the throttling pipe, a positioning pipe is arranged in the throttling pipe, and a blocking piece is arranged on the inner side wall of the positioning pipe. By means of the technical scheme, the problem that in the prior art, due to the fact that cooling saline water needs to be introduced for crystallization in the sodium sulfate crystallization process, cooling water needs to be introduced into the crystallization tank for cooling is solved.

Description

Technical Field

[0001] This utility model relates to the field of sodium sulfate processing technology, specifically to a vertical sodium sulfate crystallizer. Background Technology

[0002] Sodium sulfate is a salt formed by the combination of sulfate and sodium ions, with the chemical formula Na₂SO₄. Sodium sulfate is soluble in water, and its solution is mostly neutral. It is soluble in glycerol but insoluble in ethanol. It is an inorganic compound. High-purity, fine-particle anhydrous sodium sulfate is called Glauber's salt. Glauber's salt is a white, odorless, bitter-tasting crystal or powder. It is hygroscopic and appears as colorless, transparent, large crystals or small granular crystals. Sodium sulfate readily absorbs water when exposed to air, forming sodium sulfate decahydrate, also known as mirabilite. It is slightly alkaline and is mainly used in the manufacture of water glass, glass, porcelain glaze, pulp, refrigeration mixtures, detergents, desiccants, dye diluents, analytical chemical reagents, pharmaceuticals, and feed. At 241℃, sodium sulfate transforms into hexagonal crystals. In organic synthesis laboratories, sodium sulfate is a commonly used post-treatment desiccant. Upstream raw materials include sulfuric acid and caustic soda.

[0003] Sodium sulfate requires crystallization tanks during processing to crystallize it into another form for use. However, the crystallization process requires the flow of cooling brine, necessitating the circulation of cold water inside the crystallization tank for cooling. Therefore, a vertical sodium sulfate crystallizer was developed to address this need. Utility Model Content

[0004] This invention proposes a vertical sodium sulfate crystallizer, which solves the problem in related technologies that sodium sulfate crystallization requires the passage of cooling brine, thus necessitating the introduction of cold water into the crystallization tank for cooling.

[0005] The technical solution of this utility model is as follows: including...

[0006] A crystallization tank, wherein a stirring motor is provided at the upper end of the crystallization tank;

[0007] A flow-throttling assembly is disposed on one side of the crystallizer;

[0008] A crystallization stirring assembly is disposed inside a crystallization tank;

[0009] The flow-throttling assembly includes a guide pipe that is connected to the side wall of the crystallizer. A throttling pipe is inserted into the guide pipe. A connecting pipe is provided at one end of the throttling pipe. A driven gear is provided on the outer side wall of the throttling pipe. A positioning frame is provided on both the guide pipe and the connecting pipe. A drive shaft is movably inserted into the positioning frame. A drive gear is mounted on the drive shaft. The drive gear meshes with the driven gear. An intercepting plate is provided inside the throttling pipe. A positioning pipe is provided inside the throttling pipe. A blocking plate is provided on the inner side wall of the positioning pipe.

[0010] As a further technical solution, both the interceptor and the blocking plate are semi-circular structures, and the interceptor and the blocking plate are sealed and fitted together.

[0011] As a further technical solution, the crystallization stirring assembly includes a stirring rod, which is disposed at the output end of the stirring motor and located inside the crystallization tank. A stirring blade is disposed on the end side wall of the stirring rod, and the bottom of the stirring blade is provided with an arc-shaped profile. A drain port is disposed at the bottom of the crystallization tank, and a drain pipe is disposed at the bottom of the crystallization tank. A plug is disposed inside the drain pipe, and a plug is disposed at the upper end of the plug, the plug being embedded in the drain port.

[0012] As a further technical solution, the inner wall of the guide tube is provided with a sliding track, and the side wall of the plug is provided with an insert groove, the insert groove being fitted into the sliding track.

[0013] As a further technical solution, a rotating disk is provided at the end of the stirring rod, and the stirring rod and the positioning frame are movably fitted together by bearings.

[0014] As a further technical solution, the throttling tube and the guide tube are movably fitted together, and the throttling tube and the connecting tube are fixedly fitted together.

[0015] As a further technical solution, the plug has filter mesh holes, the plug has a circular structure, and the outer contour of the plug fits into the inner wall of the guide tube.

[0016] As a further technical solution, a portion of the guide tube is inserted into the crystallization tank, and the crystallization tank and the guide tube are sealed together.

[0017] As a further technical solution, the number of the guide tubes is a pair, and the positioning frame is located between the pair of guide tubes.

[0018] As a further technical solution, the output end of the stirring motor is inserted into the crystallization tank, and the stirring motor and the crystallization tank are fixedly connected by bolts.

[0019] The working principle and beneficial effects of this utility model are as follows:

[0020] In this invention, after rotating the drive shaft, the drive shaft drives the drive gear to rotate, and the drive gear drives the driven gear to rotate, thereby causing the throttling tube to rotate on the guide tube. At this time, the intercepting plate and the blocking plate are closed, making the guide tube in a blocked state. Conversely, the intercepting plate and the blocking plate form a flow port, thus presenting a flow guiding state. It can realize that the two guide tubes are closed or flow simultaneously after being screwed on. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a cross-sectional view of the crystallization tank of this utility model;

[0024] Figure 3 This is an isometric view of the plug plate of this utility model;

[0025] Figure 4 This is an isometric view of the throttling tube of this utility model;

[0026] In the diagram: 1. Crystallization tank; 2. Stirring motor; 3. Flow throttling assembly; 3-1. Guide pipe; 3-2. Throttling pipe; 3-3. Connecting pipe; 3-4. Driven gear; 3-5. Positioning frame; 3-6. Drive shaft; 3-7. Drive gear; 3-8. Interceptor plate; 3-9. Positioning pipe; 3-10. Blocking plate; 4. Crystallization stirring assembly; 4-1. Stirring rod; 4-2. Stirring plate; 4-3. Arc-shaped profile; 4-4. Drain port; 4-5. Drain pipe; 4-6. Plug plate; 4-7. Plug; 4-8. Sliding track; 4-9. Insertion groove; 5. Rotating disk; 6. Filter screen. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0028] like Figures 1-4 As shown, this embodiment proposes a vertical sodium sulfate crystallizer, including...

[0029] Crystallization tank 1, with a stirring motor 2 installed at the upper end of crystallization tank 1;

[0030] The flow throttling component 3 is disposed on one side of the crystallizer 1;

[0031] Crystallization stirring assembly 4 is installed inside crystallization tank 1;

[0032] The flow-throttling assembly 3 includes a guide pipe 3-1, which is connected to the side wall of the crystallizer 1. A throttling pipe 3-2 is inserted into the guide pipe 3-1. A connecting pipe 3-3 is provided at one end of the throttling pipe 3-2. A driven gear 3-4 is provided on the outer side wall of the throttling pipe 3-2. A positioning frame 3-5 is provided on both the guide pipe 3-1 and the connecting pipe 3-3. A drive shaft 3-6 is movably inserted into the positioning frame 3-5. A drive gear 3-7 is mounted on the drive shaft 3-6. The drive gear 3-7 meshes with the driven gear 3-4. An intercepting plate 3-8 is provided inside the throttling pipe 3-2. A positioning pipe 3-9 is provided inside the throttling pipe 3-2. A blocking plate 3-10 is provided on the inner side wall of the positioning pipe 3-9. Both the intercepting plate 3-8 and the blocking plate 3-10 are semi-circular structures, and the intercepting plate 3-8 and the blocking plate 3-10 are sealed together.

[0033] In this embodiment, after rotating the drive shaft 3-6, the drive shaft 3-6 drives the drive gear 3-7 to rotate, and the drive gear 3-7 drives the driven gear 3-4 to rotate, thereby causing the throttling tube 3-2 to rotate on the guide tube 3-1. At this time, the intercepting plate 3-8 and the blocking plate 3-10 are closed, making the guide tube 3-1 in a blocked state. Conversely, the intercepting plate 3-8 and the blocking plate 3-10 form a flow port, thus presenting a guiding state.

[0034] Specifically, the crystallization stirring assembly 4 includes a stirring rod 4-1, which is located at the output end of the stirring motor 2 and inside the crystallization tank 1. The stirring rod 4-1 is provided with a stirring blade 4-2 on the end side wall of the stirring rod 4-1. The bottom of the stirring blade 4-2 is provided with an arc-shaped profile 4-3. The bottom of the crystallization tank 1 is provided with a drain port 4-4 and a drain pipe 4-5. The drain pipe 4-5 is provided with a plug 4-6 inside and a plug 4-7 is provided at the upper end of the plug 4-6. The plug 4-7 is embedded in the drain port 4-4.

[0035] In this embodiment, the stirring rod 4-1 is driven by the stirring motor 2, and the stirring blade 4-2 on the stirring rod 4-1 stirs the sodium sulfate inside the crystallization tank 1. The plug 4-6 is driven by the cylinder, and the plug 4-7 on the plug 4-6 seals the drain port 4-4. After the plug 4-6 descends, the drain port 4-4 opens, and the sodium sulfate inside the crystallization tank 1 will be discharged.

[0036] Furthermore, the inner wall of the guide tube 3-1 is provided with a sliding track 4-8, and the side wall of the plug 4-6 is provided with an insert groove 4-9, which is inserted into the sliding track 4-8.

[0037] In this embodiment, the mounting groove 4-9 on the plug 4-6 slides smoothly up and down on the sliding track 4-8.

[0038] Furthermore, a rotating disk 5 is provided at the end of the stirring rod 4-1. The stirring rod 4-1 and the positioning frame 3-5 are connected by a bearing. The throttling tube 3-2 and the guide tube 3-1 are connected by a rotating disk. The throttling tube 3-2 and the connecting tube 3-3 are connected by a fixed disk.

[0039] In this embodiment, the rotating disk 5 is used to manually control the rotation of the drive shafts 3-6.

[0040] Furthermore, the plug 4-6 has a filter mesh 6, the plug 4-6 has a circular structure, the outer contour of the plug 4-6 fits the inner wall of the guide tube 3-1, a part of the guide tube 3-1 is inserted into the crystallization tank 1, and the crystallization tank 1 and the guide tube 3-1 are sealed together.

[0041] In this embodiment, the filter mesh 6 is used to filter the discharged sodium sulfate, and large crystals can be crushed as the blocking plates 4-6 rise.

[0042] Furthermore, there is a pair of guide pipes 3-1, and the positioning frame 3-5 is located between the pair of guide pipes 3-1. The output end of the stirring motor 2 is inserted into the crystallization tank 1, and the stirring motor 2 and the crystallization tank 1 are fixedly connected by bolts.

[0043] When it is necessary to stir the sodium sulfate inside the crystallization tank 1, the stirring rod 4-1 is driven by the stirring motor 2, and the stirring blades 4-2 on the stirring rod 4-1 stir the sodium sulfate inside the crystallization tank 1. The plug 4-6 is driven by the cylinder, and the plug 4-7 on the plug 4-6 seals the drain port 4-4. After the plug 4-6 descends, the drain port 4-4 opens, and the sodium sulfate inside the crystallization tank 1 will be discharged. During the stirring process, the drive shaft 3-6 is rotated, and the drive shaft 3-6 drives the drive gear 3-7 to stir. Rotation drives the driven gear 3-7 to rotate the driven gear 3-4, causing the throttling tube 3-2 to rotate on the guide tube 3-1. At this time, the intercepting plate 3-8 and the blocking plate 3-10 are closed, making the guide tube 3-1 in a blocked state. Conversely, the intercepting plate 3-8 and the blocking plate 3-10 form a flow port, thus presenting a flow guiding state. The two guide tubes 3-1 are respectively connected to the discharge pipe and return pipe of the cooling brine, so that the cooling brine circulates inside the crystallization tank 1, which facilitates the crystallization effect of sodium sulfate inside the crystallization tank 1.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vertical sodium sulfate crystallizer, characterized in that, include Crystallization tank (1), wherein a stirring motor (2) is provided at the upper end of the crystallization tank (1); A flow-throttling assembly (3) is disposed on one side of the crystallizer (1); Crystallization stirring assembly (4) is disposed inside the crystallization tank (1); The flow-throttling assembly (3) includes a guide pipe (3-1), which is connected to the side wall of the crystallizer (1). A throttling pipe (3-2) is inserted into the guide pipe (3-1). A connecting pipe (3-3) is provided at one end of the throttling pipe (3-2). A driven gear (3-4) is provided on the outer side wall of the throttling pipe (3-2). Positioning brackets (3-4) are provided on both the guide pipe (3-1) and the connecting pipe (3-3). 5) A drive shaft (3-6) is movably inserted into the positioning frame (3-5). A drive gear (3-7) is mounted on the drive shaft (3-6). The drive gear (3-7) meshes with the driven gear (3-4). An intercepting plate (3-8) is provided inside the throttle tube (3-2). A positioning tube (3-9) is provided inside the throttle tube (3-2). A blocking plate (3-10) is provided on the inner side wall of the positioning tube (3-9).

2. The vertical sodium sulfate crystallizer according to claim 1, characterized in that, Both the interceptor plate (3-8) and the blocking plate (3-10) are semi-circular structures, and the interceptor plate (3-8) and the blocking plate (3-10) are sealed together.

3. The vertical sodium sulfate crystallizer according to claim 1, characterized in that, The crystallization stirring assembly (4) includes a stirring rod (4-1), which is located at the output end of the stirring motor (2). The stirring rod (4-1) is located inside the crystallization tank (1). A stirring blade (4-2) is provided on the end side wall of the stirring rod (4-1). An arc-shaped profile (4-3) is provided at the bottom of the stirring blade (4-2). A drain port (4-4) is provided at the bottom of the crystallization tank (1). A drain pipe (4-5) is provided at the bottom of the crystallization tank (1). A plug (4-6) is provided inside the drain pipe (4-5). A plug (4-7) is provided at the upper end of the plug (4-6). The plug (4-7) is embedded in the drain port (4-4).

4. The vertical sodium sulfate crystallizer according to claim 3, characterized in that, The inner wall of the guide pipe (3-1) is provided with a sliding track (4-8), and the side wall of the plug (4-6) is provided with an insert groove (4-9), and the insert groove (4-9) is fitted with the sliding track (4-8).

5. The vertical sodium sulfate crystallizer according to claim 3, characterized in that, The stirring rod (4-1) is provided with a rotating disk (5) at its end, and the stirring rod (4-1) and the positioning frame (3-5) are connected by a bearing.

6. The vertical sodium sulfate crystallizer according to claim 1, characterized in that, The throttling tube (3-2) and the guide tube (3-1) are movably fitted together, and the throttling tube (3-2) and the connecting tube (3-3) are fixedly fitted together.

7. The vertical sodium sulfate crystallizer according to claim 3, characterized in that, The plug (4-6) has a filter mesh (6) and the plug (4-6) has a circular structure. The outer contour of the plug (4-6) fits against the inner wall of the guide tube (3-1).

8. The vertical sodium sulfate crystallizer according to claim 1, characterized in that, A portion of the guide pipe (3-1) is inserted into the crystallization tank (1), and the crystallization tank (1) and the guide pipe (3-1) are sealed together.

9. The vertical sodium sulfate crystallizer according to claim 1, characterized in that, The number of the flow guide tubes (3-1) is one pair, and the positioning frame (3-5) is located between the pair of flow guide tubes (3-1).

10. The vertical sodium sulfate crystallizer according to claim 1, characterized in that, The output end of the stirring motor (2) is inserted into the crystallization tank (1), and the stirring motor (2) and the crystallization tank (1) are fixedly connected by bolts.

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