An evaporator crystallizer for sodium sulfate wastewater treatment

Abstract

This utility model discloses an evaporator crystallizer for sodium sulfate wastewater treatment, relating to the field of crystallization technology. It includes an evaporator crystallizer tank. An external guide plate is welded and installed on the inner side of the evaporator crystallizer tank. A heat insulation ring is fixedly installed on the inner side of the external guide plate. A positioning groove is formed on the surface of the heat insulation ring. A heating rod is slidably installed on the inner wall of the positioning groove on the heat insulation ring. In this evaporator crystallizer for sodium sulfate wastewater treatment, a positioning block is placed on the inner wall of the positioning groove, releasing a power rod. The power rod is pushed by the torsion of a torsion spring, causing the positioning plate to rotate inside the positioning block and enter the inner wall of the positioning groove to form a positioning position. This method not only ensures the convenience of disassembling and installing the heating rod but also ensures the ease of cleaning the heating rod. Therefore, the convenient assembly operation of the heating rod ensures the reliability of the heating rod for heating and evaporating sodium sulfate wastewater.

Description

Technical Field

[0001] This utility model relates to the field of crystallization technology, and in particular to an evaporation crystallizer for sodium sulfate wastewater treatment. Background Technology

[0002] With the development of manufacturing, wastewater has also emerged, and sodium sulfate wastewater is one of them. If sodium sulfate wastewater is discharged directly, it will easily cause environmental pollution. It needs to be treated before it can meet the discharge standards. Wastewater treatment uses physical, chemical and biological methods to treat wastewater.

[0003] While most existing sodium sulfate wastewater treatment evaporation crystallizers can perform evaporation crystallization at high temperatures, some evaporation crystallizers add heating rods inside to improve the efficiency of evaporation crystallization. To ensure the heating rods are securely fixed inside the crystallizer, they are typically assembled using bolts or threaded connections. While this method ensures the heating rods are securely fixed, regular cleaning of the surface is necessary to maintain their effectiveness. However, cleaning the heating rods often involves tedious disassembly and reassembly, resulting in low efficiency during subsequent cleaning operations. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to solve the problems raised in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an evaporator crystallizer for sodium sulfate wastewater treatment, comprising an evaporator crystallizer tank, an external guide plate welded to the inner side of the evaporator crystallizer tank, a heat insulation ring fixedly installed on the inner side of the external guide plate, a positioning groove formed on the surface of the heat insulation ring, a heating rod slidably installed on the inner wall of the positioning groove on the heat insulation ring, a positioning block slidably installed on the inner wall of the positioning groove, a power positioning rod rotatably installed on the inner side of the positioning block, a positioning plate fixedly installed on the surface of the power positioning rod, and a positioning groove communicating with the positioning groove formed on the inner side of the heat insulation ring.

[0006] Preferably, the power rod is located slightly outside the center of the fixed position block.

[0007] Preferably, a torsion spring is rotatably sleeved on the surface of the power rod, and the two ends of the torsion spring are respectively fixedly installed on the surface of the power rod and the inner side of the positioning block. An auxiliary groove is provided on the inner side of the positioning block, and the surface of the positioning plate is slidably installed on the inner wall of the auxiliary groove.

[0008] Preferably, an external support ring is welded and installed on the side of the external guide plate away from the evaporation crystallization tank, and a motor body is fixedly installed on the surface of the external support ring. A large gear is fixedly installed on the output end of the motor body.

[0009] Preferably, a rotating support shaft is rotatably mounted on the inner side of the external support ring, and a small gear is fixedly mounted on the surface of the rotating support shaft, with the surface of the small gear meshing with the surface of the large gear.

[0010] Preferably, there are two sets of pinions, which are arranged on both sides of the large gear.

[0011] Preferably, a stirring rod is welded and installed on the surface of the rotating support shaft, and the stirring rods on the two sets of rotating support shafts are staggered vertically.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) In the evaporator crystallizer for sodium sulfate wastewater treatment, the positioning block is placed on the inner wall of the positioning groove and the power rod is released. The power rod is pushed by the torsion performance of the torsion spring to make the positioning plate rotate inside the positioning block and enter the inner wall of the positioning groove to form a positioning. This method not only ensures the convenience of disassembling and installing the heating rod, but also ensures the ease of cleaning the heating rod. Therefore, the convenient assembly operation of the heating rod ensures the reliability of the heating rod for heating and evaporating sodium sulfate wastewater. It reduces the disadvantage of the traditional heating rod being located inside the evaporation crystallizer and not being easy to disassemble, resulting in cumbersome cleaning. Therefore, this method ensures that the heating rod can be easily separated and cleaned during long-term use to ensure its heating effect. It reduces the disadvantage of the heating rod having a lot of impurities adhering to its surface, resulting in an unsatisfactory heating effect and low heating evaporation crystallization efficiency. It also improves the disadvantage of the traditional heating rod being assembled with threads, which leads to heating oxidation and is not easy to disassemble.

[0014] (2) In the sodium sulfate wastewater treatment, when the sodium sulfate wastewater inside the evaporation crystallizer needs to be heated and evaporated for crystallization, the motor body works, and the motor body drives the large gear to rotate. Therefore, the large gear drives the two sets of small gears to rotate, and the two sets of small gears drive the stirring rod on the rotating support shaft to stir and mix. At this time, the cross stirring and mixing of the two sets ensures that the sodium sulfate wastewater has a disrupted stirring effect when it is heated and stirred, thus improving the stirring effect of the sodium sulfate wastewater when it is heated, and thus ensuring that the sodium sulfate wastewater has a certain efficiency when it is evaporated and crystallized. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1This is a schematic diagram of the structure of an evaporator crystallizer for sodium sulfate wastewater treatment according to this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the planar structure of the evaporation crystallization tank of this utility model;

[0019] Figure 4 This is a schematic diagram of the planar structure of the positioning block of this utility model.

[0020] Reference numerals in the attached diagram: 1. Evaporation and crystallization tank; 2. External guide plate; 3. External support ring; 4. Motor body; 5. Large gear; 6. Rotating support shaft; 7. Small gear; 8. Stirring support rod; 9. Heat insulation ring; 10. Heating rod; 11. Positioning groove; 12. Positioning block; 13. Power positioning rod; 14. Torsion spring; 15. Positioning plate; 16. Auxiliary groove; 17. Positioning groove. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0023] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Please see Figure 1-4This utility model provides a technical solution: an evaporator crystallizer for sodium sulfate wastewater treatment, comprising an evaporator crystallizer tank 1, an external guide plate 2 welded to the inner side of the evaporator crystallizer tank 1, an external support ring 3 welded to the side of the external guide plate 2 away from the evaporator crystallizer tank 1, a motor body 4 fixedly mounted on the surface of the external support ring 3, a large gear 5 fixedly mounted at the output end of the motor body 4, a rotating shaft 6 rotatably mounted on the inner side of the external support ring 3, a small gear 7 fixedly mounted on the surface of the rotating shaft 6, the surface of the small gear 7 meshing with the surface of the large gear 5, a stirring rod 8 welded to the surface of the rotating shaft 6, two sets of small gears 7, the two sets of small gears 7 being set on both sides of the large gear 5, and the stirring rods 8 on the two sets of rotating shafts 6 being staggered vertically.

[0026] Specifically, when the sodium sulfate wastewater inside the evaporation crystallization tank 1 needs to be heated for evaporation and crystallization, the motor body 4 works, which in turn drives the large gear 5 to rotate. The large gear 5 then drives the two sets of small gears 7 to rotate, which in turn drives the stirring rods 8 on the rotating support shaft 6 to stir and mix. At this time, the cross stirring and mixing of the two sets ensures that the sodium sulfate wastewater has a disrupted stirring effect when it is heated and stirred, thus improving the stirring effect of the sodium sulfate wastewater during heating and ensuring a certain degree of efficiency in the evaporation and crystallization of sodium sulfate wastewater.

[0027] Furthermore, a heat insulation ring 9 is fixedly installed on the inner side of the external guide plate 2. A positioning groove 11 is opened on the surface of the heat insulation ring 9. A heating rod 10 is slidably installed on the inner wall of the positioning groove 11 on the heat insulation ring 9. A positioning block 12 is slidably installed on the inner wall of the positioning groove 11. A power rod 13 is rotatably installed on the inner side of the positioning block 12. The power rod 13 is located slightly outside the center of the positioning block 12. A torsion spring 14 is rotatably sleeved on the surface of the power rod 13. The two ends of the torsion spring 14 are fixedly installed on the surface of the power rod 13 and the inner side of the positioning block 12, respectively. A positioning plate 15 is fixedly installed on the surface of the power rod 13. An auxiliary groove 16 is opened on the inner side of the positioning block 12. The surface of the positioning plate 15 is slidably installed on the inner wall of the auxiliary groove 16. A positioning groove 17 that communicates with the positioning groove 11 is opened on the inner side of the heat insulation ring 9.

[0028] Specifically, by installing a heating rod 10 inside the evaporation crystallization tank 1, the function of the heating rod 10 is to heat the sodium sulfate wastewater inside the evaporation crystallization tank 1, thereby achieving the evaporation and crystallization of the sodium sulfate wastewater inside the evaporation crystallization tank 1. When it is necessary to clean the surface of the heating rod 10, the operator only needs to control the power rod 13 to drive the positioning plate 15 to rotate out of the inner wall of the positioning groove 17 on the heat insulation ring 9. Therefore, when the positioning plate 15 is housed in the inner wall of the auxiliary groove 16 on the positioning block 12, the positioning block 12 can slide out of the inner wall of the positioning groove 11. At this time, the heating rod 10 can be separated at the heat insulation ring 9. After the heating rod 10 is cleaned, the heating rod 10 is connected at the positioning groove 11 on the heat insulation ring 9. Then, the positioning block 12 is placed on the inner wall of the positioning groove 11 and the power rod 13 is released. The power rod 13 is then pushed by the torsion performance of the torsion spring 14. The positioning plate 15 rotates inside the positioning block 12 and enters the inner wall of the positioning groove 17 to form a positioning. The heating rod 10 is an existing structure and will not be described in detail here. This method not only ensures the convenience of disassembling and installing the heating rod 10, but also ensures the ease of cleaning the heating rod 10. Therefore, the convenient assembly operation of the heating rod 10 ensures the reliability of the heating rod 10 for heating and evaporating sodium sulfate wastewater. It reduces the disadvantage of the traditional heating rod 10 being located inside the evaporation crystallization tank 1, which is inconvenient to disassemble and clean, resulting in cumbersome cleaning. Therefore, this method ensures that the heating rod 10 can be easily separated and cleaned during long-term use, thus ensuring its heating effect. It also reduces the disadvantage of the heating rod 10 having a lot of impurities adhering to its surface, resulting in unsatisfactory heating effect and low heating evaporation crystallization efficiency. At the same time, it also improves the disadvantage of the traditional heating rod 10 being assembled with threads, which leads to heating oxidation and inconvenience for subsequent disassembly.

[0029] Working principle: An evaporator crystallizer for sodium sulfate wastewater treatment uses a heating rod 10 installed inside the evaporator crystallizer tank 1. The heating rod 10 heats the sodium sulfate wastewater inside the evaporator crystallizer tank 1, thereby achieving evaporation and crystallization of the sodium sulfate wastewater inside the evaporator crystallizer tank 1. When it is necessary to clean the surface of the heating rod 10, the operator only needs to control the power rod 13 to rotate the positioning plate 15 out of the inner wall of the positioning groove 17 on the heat insulation ring 9. Therefore, when the positioning plate 15 is retracted into the positioning block 1... After the auxiliary groove 16 is cleaned, the positioning block 12 can slide out of the inner wall of the positioning groove 11. At this time, the heating rod 10 can be separated at the heat insulation ring 9. After the heating rod 10 is cleaned, the heating rod 10 is connected at the positioning groove 11 on the heat insulation ring 9. Then the positioning block 12 is placed on the inner wall of the positioning groove 11 to release the power rod 13. The power rod 13 is pushed by the torsion performance of the torsion spring 14 to make the positioning plate 15 rotate inside the positioning block 12 and enter the inner wall of the positioning groove 17 to form a positioning.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An evaporator crystallizer for treating sodium sulfate wastewater, comprising an evaporator crystallizer tank (1), characterized in that: An external guide plate (2) is welded to the inner side of the evaporation crystallization tank (1). A heat insulation ring (9) is fixedly installed on the inner side of the external guide plate (2). A positioning groove (11) is opened on the surface of the heat insulation ring (9). A heating rod (10) is slidably installed on the inner wall of the positioning groove (11) on the heat insulation ring (9). A positioning block (12) is slidably installed on the inner wall of the positioning groove (11). A power rod (13) is rotatably installed on the inner side of the positioning block (12). A positioning plate (15) is fixedly installed on the surface of the power rod (13). A positioning groove (17) communicating with the positioning groove (11) is opened on the inner side of the heat insulation ring (9).

2. The evaporator crystallizer for sodium sulfate wastewater treatment according to claim 1, characterized in that: The power rod (13) is located slightly outside the center of the fixed position block (12).

3. The evaporator crystallizer for sodium sulfate wastewater treatment according to claim 1, characterized in that: A torsion spring (14) is rotatably sleeved on the surface of the power rod (13). The two ends of the torsion spring (14) are respectively fixedly installed on the surface of the power rod (13) and the inner side of the positioning block (12). An auxiliary groove (16) is provided on the inner side of the positioning block (12). The surface of the positioning plate (15) is slidably installed on the inner wall of the auxiliary groove (16).

4. The evaporator crystallizer for sodium sulfate wastewater treatment according to claim 1, characterized in that: An external support ring (3) is welded and installed on the side of the external guide plate (2) away from the evaporation crystallization tank (1). A motor body (4) is fixedly installed on the surface of the external support ring (3). A large gear (5) is fixedly installed at the output end of the motor body (4).

5. The evaporator crystallizer for sodium sulfate wastewater treatment according to claim 4, characterized in that: The inner side of the external support ring (3) is rotatably mounted with a rotating support shaft (6), and a small gear (7) is fixedly mounted on the surface of the rotating support shaft (6). The surface of the small gear (7) is meshed with the surface of the large gear (5).

6. The evaporator crystallizer for sodium sulfate wastewater treatment according to claim 5, characterized in that: The number of pinions (7) is two sets, and the two sets of pinions (7) are set on both sides of the large gear (5).

7. The evaporator crystallizer for sodium sulfate wastewater treatment according to claim 6, characterized in that: The surface of the rotating support shaft (6) is welded with stirring rods (8), and the stirring rods (8) on the two sets of rotating support shafts (6) are staggered vertically.

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