Rapid evaporative crystallization equipment in sodium chlorate production

Abstract

The utility model provides rapid evaporative crystallization equipment in sodium chlorate production, which relates to the technical field of sodium chlorate production and comprises an evaporative crystallization tank and a heating base, the heating base is mounted at the bottom end of the evaporative crystallization tank, and a stirring component is arranged on the inner side of the evaporative crystallization tank. The stirring assembly comprises a servo motor mounted at the top end of the evaporative crystallization tank, a stirring connecting rod is rotationally connected to the center in the evaporative crystallization tank, stirring blades are mounted on the outer side of the stirring connecting rod, and a preheating tank is arranged on the left side of the evaporative crystallization tank; the stirring assembly is arranged, a servo motor is used for driving a stirring connecting rod, stirring blades and a stirring frame to rotate, a sodium chlorate solution in the evaporative crystallization tank can be fully stirred, and the situation that sodium chlorate crystals are deposited at the bottom of the evaporative crystallization tank, so that heat conduction and crystal growth are affected is avoided; meanwhile, the effects of preventing precipitation and circulating the solution can be simultaneously met by matching with a partition plate.

Description

Technical Field

[0001] This utility model relates to the field of sodium chlorate production technology, and in particular to a rapid evaporation crystallization device for sodium chlorate production. Background Technology

[0002] Sodium chlorate is an inorganic compound and a strong oxidizing agent. It reacts with flammable substances, reducing substances and strong acids, posing a fire and explosion hazard. Sodium chlorate is mainly used to manufacture chlorine dioxide, sodium chlorite and other chlorates and perchlorates. It can also be used in water treatment, food disinfection, sterilization and algae removal and fish medicine manufacturing. In the production process of sodium chlorate, an evaporation crystallization device is usually used to crystallize sodium chlorate.

[0003] A search revealed that the document with publication number "CN213760573U" mentions "This utility model discloses a crystallization device for the production of sodium perchlorate, relating to the field of sodium perchlorate production technology, including a crystallization tank. Support legs are fixedly connected to the front and back sides of both sides of the crystallization tank, and stabilizing blocks are fixedly connected to the bottom of the support legs. Sliding blocks are slidably connected to both sides of the inside of the crystallization tank via sliding grooves. The bottom of the sliding blocks is connected to the bottom of the sliding grooves via return springs. A cleaning ring is fixedly connected to the bottom of the sliding blocks, and a vertical groove is opened inside the cleaning ring. The top of the sliding blocks is threadedly connected to the top of the tank. A gas outlet pipe is connected to the left side of the top of the tank. A fixed bearing A is fixedly connected to the left side of the inside of the gas outlet pipe via a bearing groove A, and a rotating crossbar is rotatably connected to the right side of the fixed bearing A." During use, the sodium perchlorate raw material inside the crystallization tank is stirred by steam through the movement of the stirring rod, accelerating the crystallization efficiency of the sodium perchlorate raw material and preventing uneven crystallization that reduces crystallization efficiency.

[0004] However, existing devices cannot simultaneously meet the requirements of solution circulation and prevention of crystal deposition through a single stirring method. When the stirring speed is too fast, it is easy to cause uneven heating of the solution, while when the stirring speed is too slow, crystal deposition is likely to occur, which will affect heat conduction.

[0005] Therefore, we provide a rapid evaporation crystallization device for sodium chlorate production to solve the above problems. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a rapid evaporation crystallization device for sodium chlorate production, which aims to solve the problem that a single stirring method cannot simultaneously meet the requirements of solution circulation and prevention of crystal deposition.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A rapid evaporation crystallization device for sodium chlorate production includes an evaporation crystallization tank and a heating base. The heating base is installed at the bottom of the evaporation crystallization tank. A stirring assembly is provided inside the evaporation crystallization tank. The stirring assembly includes a servo motor installed at the top of the evaporation crystallization tank. A stirring connecting rod is rotatably connected to the center of the evaporation crystallization tank. Stirring blades are installed on the outside of the stirring connecting rod. A preheating tank is provided on the left side of the evaporation crystallization tank.

[0009] As a further description of the above technical solution:

[0010] The evaporation crystallization tank is made of stainless steel, and the stirring blades and the stirring connecting rod are welded together. The stirring blades are propeller-type blade structures.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the stirring connecting rod is connected to a connector with a groove, and a stirring frame is welded to the outside of the connector. The stirring frame is an anchor-type paddle structure.

[0013] As a further description of the above technical solution:

[0014] A partition plate is provided between the stirring blade and the stirring frame, and the partition plate is connected to the evaporation crystallization tank by a slot. The surface of the partition plate is provided with a through groove.

[0015] As a further description of the above technical solution:

[0016] An exhaust port is provided at the top inner side of the evaporation crystallizer, and a gas supply pipe is fixedly connected to the outside of the exhaust port. The preheating tank is connected to the evaporation crystallizer through the gas supply pipe.

[0017] As a further description of the above technical solution:

[0018] A preheating inner tank is fixedly connected to the inside of the preheating tank, and there is a gap between the preheating inner tank and the preheating tank. The preheating inner tank is made of stainless steel.

[0019] As a further description of the above technical solution:

[0020] An exhaust pipe is provided on the left side of the bottom of the preheating tank. A pressure valve is installed inside the exhaust pipe. A circulating water pipe is provided inside the preheating inner tank. The other end of the circulating water pipe is connected to the evaporation crystallization tank.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. By setting up a stirring assembly, a servo motor drives the stirring connecting rod, stirring blades and stirring frame to rotate, which can fully stir the sodium chlorate solution inside the evaporation crystallizer, preventing sodium chlorate crystals from depositing at the bottom of the evaporation crystallizer, affecting heat conduction and crystal growth. At the same time, the partition plate can simultaneously meet the requirements of preventing precipitation and circulating the solution.

[0023] 2. By setting up a preheating tank and circulating water pipes, the sodium chlorate solution is preheated using the preheating inner tank. At the same time, the circulating water pipes transport the preheated hot water to the evaporation crystallization tank, which can further increase the internal temperature of the evaporation crystallization tank, accelerate the evaporation crystallization process of sodium chlorate, and improve production efficiency. In addition, the interconnected design between the preheating tank and the evaporation crystallization tank can realize the recycling of heat and save energy. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the evaporation crystallizer of this utility model;

[0026] Figure 3 This is a schematic diagram of the assembly structure of the stirring connecting rod, stirring blades and stirring frame of this utility model;

[0027] Figure 4 This is a schematic diagram of the combined structure of the evaporation crystallizer and the exhaust port of this utility model;

[0028] Figure 5 This is a schematic diagram of the cooperative structure of the preheating tank and the preheating inner tank of this utility model;

[0029] Figure 6 This is a schematic diagram of the overall front cross-sectional structure of this utility model.

[0030] The following are the labels in the diagram: 1. Evaporation crystallization tank; 2. Heating base; 3. Stirring assembly; 301. Servo motor; 302. Stirring connecting rod; 303. Stirring blade; 304. Divider plate; 305. Connector; 306. Stirring frame; 4. Exhaust port; 5. Gas supply pipe; 6. Preheating tank; 7. Preheating inner tank; 8. Exhaust pipe; 9. Pressure valve; 10. Circulating water pipe. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-6 As shown, this utility model provides a technical solution: a rapid evaporation crystallization device for sodium chlorate production, including an evaporation crystallization tank 1 and a heating base 2. The heating base 2 is installed at the bottom of the evaporation crystallization tank 1. A stirring assembly 3 is provided inside the evaporation crystallization tank 1. The stirring assembly 3 includes a servo motor 301 installed at the top of the evaporation crystallization tank 1. A stirring connecting rod 302 is rotatably connected to the center of the evaporation crystallization tank 1. Stirring blades 303 are installed on the outside of the stirring connecting rod 302. A preheating tank 6 is provided on the left side of the evaporation crystallization tank 1.

[0033] Furthermore, the evaporation crystallizer 1 is made of stainless steel, and the stirring blade 303 and the stirring connecting rod 302 are welded together. The stirring blade 303 is a propeller-type blade structure. During use, the stirring connecting rod 302 is driven to rotate by the servo motor 301, thereby driving the stirring blade 303 to stir the sodium chlorate solution. Moreover, the propeller-type blade can push the solution upward, promote the circulation of the solution, and ensure the uniformity of heating.

[0034] Furthermore, the bottom end of the stirring connecting rod 302 is connected to a connector 305, and a stirring frame 306 is welded to the outside of the connector 305. The stirring frame 306 has an anchor-type blade structure. The stirring frame 306 is close to the bottom of the evaporation crystallization tank 1 and rotates together with the stirring connecting rod 302. This can prevent crystals from depositing at the bottom, so that the solution can fully contact the heating surface and improve the heat transfer effect.

[0035] Furthermore, a partition plate 304 is provided between the stirring blade 303 and the stirring frame 306. The partition plate 304 is connected to the evaporation crystallization tank 1 by a slot. The surface of the partition plate 304 is provided with a through groove. By setting the partition plate 304, the interior of the evaporation crystallization tank 1 can be divided into multiple stirring zones. This ensures that the solution is fully stirred while avoiding the problem of bottom crystal deposition. It also allows the upper and lower layers of solution to exchange, further enhancing the solution circulation effect and ensuring the heating effect of the solution.

[0036] Furthermore, an exhaust port 4 is provided at the top inner side of the evaporation crystallizer 1, and a gas supply pipe 5 is fixedly connected to the outside of the exhaust port 4. The preheating tank 6 is connected to the evaporation crystallizer 1 through the gas supply pipe 5. During the evaporation process, the generated steam is transported to the interior of the preheating tank 6 through the gas supply pipe 5, thereby preheating the sodium chlorate solution in the preheating tank 6 and improving the subsequent evaporation crystallization efficiency.

[0037] Furthermore, a preheating inner tank 7 is fixedly connected to the inner side of the preheating tank 6. There is a gap between the preheating inner tank 7 and the preheating tank 6. The preheating inner tank 7 is made of stainless steel. Through the cooperation of the preheating tank 6 and the preheating inner tank 7, steam can fill the gap between the two, increasing the contact surface with the steam and improving the preheating effect.

[0038] Furthermore, an exhaust pipe 8 is provided on the left side of the bottom of the preheating tank 6, and a pressure valve 9 is installed inside the exhaust pipe 8. A circulating water pipe 10 is provided inside the preheating inner tank 7, and the other end of the circulating water pipe 10 is connected to the evaporation crystallization tank 1. By setting the pressure valve 9, the steam pressure in the preheating tank 6 can be increased, thereby increasing the preheating effect. The preheated sodium chlorate solution is injected into the evaporation crystallization tank 1 through the circulating water pipe 10 to ensure the continuity of sodium chlorate evaporation crystallization.

[0039] Working principle: Install the device in the working position, then start the servo motor 301. The output shaft of the servo motor 301 drives the stirring connecting rod 302 to rotate. The stirring connecting rod 302 drives the stirring blades 303 and the stirring frame 306 to stir the sodium chlorate solution in the evaporation crystallization tank 1. The stirring blades 303 adopt a propeller-type blade structure, which can push the solution upward and promote the circulation of the solution. At the same time, the stirring frame 306 is close to the bottom of the evaporation crystallization tank 1, which can prevent crystals from depositing at the bottom and make the solution fully contact the heating surface, improving the heat transfer effect. During the stirring process, the generated steam is transported to the preheating tank 6 through the exhaust port 4 and the gas supply pipe 5. The sodium chlorate solution in the preheating tank 6 exchanges heat with the steam through the preheating inner tank 7. The preheated sodium chlorate solution is injected into the evaporation crystallization tank 1 through the circulating water pipe 10, realizing the continuous evaporation crystallization of sodium chlorate solution. This completes the use process of a rapid evaporation crystallization device in sodium chlorate production.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid evaporation crystallization apparatus in sodium chlorate production, comprising an evaporation crystallization tank (1) and a heating base (2), characterized in that: A heating base (2) is installed at the bottom of the evaporation crystallizer (1). A stirring assembly (3) is provided inside the evaporation crystallizer (1). The stirring assembly (3) includes a servo motor (301) installed at the top of the evaporation crystallizer (1). A stirring connecting rod (302) is rotatably connected to the center of the evaporation crystallizer (1). A stirring blade (303) is installed on the outside of the stirring connecting rod (302). A preheating tank (6) is provided on the left side of the evaporation crystallizer (1).

2. The apparatus for rapid evaporation crystallization in sodium chlorate production according to claim 1, characterized in that, The evaporation crystallization tank (1) is made of stainless steel. The stirring blade (303) and the stirring connecting rod (302) are welded together. The stirring blade (303) is a propeller blade structure.

3. The apparatus for rapid evaporation crystallization in sodium chlorate production according to claim 1, characterized in that, The bottom end of the stirring connecting rod (302) is connected to a connector (305) via a slot. A stirring frame (306) is welded to the outside of the connector (305). The stirring frame (306) is an anchor-type blade structure.

4. The apparatus for rapid evaporation crystallization in sodium chlorate production according to claim 1, characterized in that, A partition plate (304) is provided between the stirring blade (303) and the stirring frame (306). The partition plate (304) is connected to the evaporation crystallization tank (1) by a slot. A through groove is opened on the surface of the partition plate (304).

5. The apparatus for rapid evaporation crystallization in sodium chlorate production according to claim 1, characterized in that, An exhaust port (4) is provided at the top inner side of the evaporation crystallizer (1), and an air supply pipe (5) is fixedly connected to the outside of the exhaust port (4). The preheating tank (6) is connected to the evaporation crystallizer (1) through the air supply pipe (5).

6. The apparatus for rapid evaporation crystallization in sodium chlorate production according to claim 1, characterized in that, The preheating tank (6) is fixedly connected to the inner side of the preheating tank (7), and there is a gap between the preheating tank (7) and the preheating tank (6). The preheating tank (7) is made of stainless steel.

7. The rapid evaporation crystallization equipment for sodium chlorate production according to claim 6, characterized in that, An exhaust pipe (8) is provided on the left side of the bottom of the preheating tank (6). A pressure valve (9) is installed inside the exhaust pipe (8). A circulating water pipe (10) is provided inside the preheating inner tank (7). The other end of the circulating water pipe (10) is connected to the evaporation crystallization tank (1).

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