Sodium perchlorate production equipment with mechanical stirring mechanism

Abstract

The utility model discloses sodium perchlorate production equipment with a mechanical stirring mechanism, which relates to the field of sodium perchlorate production and comprises a transparent glass shell, a first funnel is fixedly mounted at the top end of the transparent glass shell, and a funnel-shaped filter plate is fixedly mounted at the bottom end in the first funnel. The device comprises a transparent glass shell, a hollow cylinder part is arranged in the transparent glass shell, a spiral auger is fixedly installed in the hollow cylinder part, a central column is fixedly installed in the middle of the spiral auger, and a conical part is fixedly installed at the top end of the central column. In the reaction, the collecting shell can continuously collect impurities and spirally convey the impurities to the upper surface of the hopper-shaped filter plate for filtering, and the solution is conveyed together during conveying, so that the dissolving area of chlorine in water can be increased, the efficiency of chlorine participating in the reaction is improved, the yield is further improved, the workload of workers is reduced, and the automation degree of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of sodium perchlorate production, in particular to sodium perchlorate production equipment with a mechanical stirring mechanism. Background Art

[0002] Sodium perchlorate is produced industrially by electrolysis. Water is added to industrial sodium chlorate in a dissolving tank, and steam is introduced to dissolve it at 45-50°C to make it saturated (the solution contains 650-700g / L of sodium chlorate). Barium hydroxide is then added to remove impurities such as chromate. After filtration, the clarified liquid is sent to an electrolytic tank for continuous electrolysis at a current intensity of 1500A, a tank voltage of 5-6V, a Ph of 6-7, and an electrolysis temperature of 50-70°C. When the concentration of the generated sodium perchlorate solution reaches 700g / L, it is evaporated and concentrated, cooled to 30°C to precipitate crystals, separated into solid and liquid, and dried in an air flow at 80-100°C to obtain sodium perchlorate.

[0003] Traditionally, when preparing sodium perchlorate, most people use compressed air for stirring, and the impurities precipitated in the solution need to be continuously filtered out during the reaction process. This results in increased workload for workers, heavy physical labor, a poor production environment, and the inability to achieve automated production.

[0004] Therefore, it is necessary to propose a sodium perchlorate production equipment with a mechanical stirring mechanism to solve the above problems. Utility Model Content

[0005] The utility model aims to provide sodium perchlorate production equipment with a mechanical stirring mechanism to solve the problem that in the traditional preparation of sodium perchlorate, most of the time, compressed air is used for stirring, and impurities precipitated in the solution need to be continuously filtered out during the reaction process, which leads to increased workload of workers, heavy physical labor, poor production environment, and inability to realize automated production.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: sodium perchlorate production equipment with a mechanical stirring mechanism, comprising a transparent glass shell, a first funnel is fixedly installed on the top of the transparent glass shell, a bucket-shaped filter plate is fixedly installed on the inner bottom end of the first funnel, a hollow cylinder is provided inside the transparent glass shell, a spiral dragon is fixedly installed inside the hollow cylinder, a center column is fixedly installed in the middle of the spiral dragon, a cone is fixedly installed on the top of the center column, the upper end of the hollow cylinder is rotatably installed on the middle of the top of the bucket-shaped filter plate, the top opening of the hollow cylinder is flush with the top opening of the bucket-shaped filter plate, a collecting shell is fixedly installed on the outer bottom end of the hollow cylinder, and the collecting shell is communicated with the interior of the hollow cylinder.

[0007] Preferably, a top plate is detachably mounted at the top opening of the first funnel, a feed port is opened in the middle of the top plate, a second funnel is fixedly mounted above the feed port, and the conical member is located between the top opening of the bucket-shaped filter plate and the bottom opening of the second funnel.

[0008] Preferably, a hot air blower is fixedly mounted on one side of the first funnel, and the hot air blower is connected to an output end of an external steam generator through a second pipeline.

[0009] Preferably, a cathode screen is fixedly mounted on the upper end of the interior of the transparent glass shell, and an anode screen is fixedly mounted on a position symmetrical to the cathode screen inside the transparent glass shell.

[0010] Preferably, an exhaust port is provided on one side of the transparent glass shell, and a first pipe is fixedly installed outside the exhaust port.

[0011] Preferably, a bottom shell is fixedly mounted on the bottom end of the transparent glass shell, the bottom end of the hollow cylinder is rotatably mounted on the upper surface of the bottom shell, and a motor for rotating the hollow cylinder is fixedly mounted inside the bottom shell.

[0012] Preferably, a plurality of annularly distributed support rods are fixedly mounted on the upper surface of the bottom shell, the top ends of the support rods are fixedly mounted on the bottom end of the first funnel, and the plurality of support rods are tightly fitted to the outer wall of the transparent glass shell.

[0013] Preferably, a discharge pipe is fixedly mounted on one side of the bottom shell, the discharge pipe is communicated with the interior of the transparent glass shell, and an electric-controlled valve is mounted on the discharge pipe.

[0014] Technical effects and advantages of the utility model:

[0015] 1. By setting up hollow cylinders and spiral dragons, the collection shell can continuously collect impurities during the reaction and spirally transport them to the upper surface of the bucket filter plate for filtration, and the solution will be transported together during the transportation, which can increase the dissolution area of ​​chlorine in water, improve the efficiency of chlorine participating in the reaction, and then increase the output, reduce the workload of workers, and improve the degree of automation of the device;

[0016] 2. A bucket-shaped filter plate is set up, and the solution will be blocked by the bucket-shaped filter plate to form a water curtain, thereby improving the heating efficiency. Using hot steam for heating can avoid the appearance of impurity ions in the reaction and ensure the purity of the final output. The conical part can ensure that the container is in a relatively sealed state and divert the solution entering the device, so that the solution can be filtered once when it enters the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1The utility model is a schematic diagram of the structure of the sodium perchlorate production equipment with a mechanical stirring mechanism.

[0018] Figure 2 It is a schematic diagram of the connection structure between the first funnel and the bucket-shaped filter plate in the utility model.

[0019] Figure 3 It is a schematic structural diagram of the transparent glass shell and the interior of the first funnel in the utility model.

[0020] Figure 4 It is a partial cutaway view of the hollow cylinder of the utility model.

[0021] In the figure: 1. transparent glass shell; 2. first funnel; 3. bottom shell; 4. bucket-shaped filter plate; 5. hot air blower; 6. conical part; 7. cathode mesh plate; 8. hollow cylinder; 9. spiral dragon; 11. exhaust port; 12. supporting rod; 13. first pipeline; 21. top plate; 22. second funnel; 31. discharge pipeline; 32. motor; 51. second pipeline; 71. anode mesh plate; 81. collection shell; 91. center column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-4 The sodium perchlorate production equipment with a mechanical stirring mechanism shown in the figure comprises a transparent glass shell 1, a first funnel 2 is fixedly installed on the top end of the transparent glass shell 1, a bottom shell 3 is fixedly installed on the bottom end of the transparent glass shell 1, a top plate 21 is detachably installed at the top opening of the first funnel 2, a feed port is provided in the middle of the top plate 21, a second funnel 22 is fixedly installed above the feed port, a discharge pipe 31 is fixedly installed on one side of the bottom shell 3, the discharge pipe 31 is communicated with the interior of the transparent glass shell 1, an electric control valve is installed on the discharge pipe 31, in actual use, a solution required for the reaction is added to the interior of the transparent glass shell 1 through the second funnel 22, and the electric control valve is opened to discharge the solution after repeated electrolysis of the solution is completed, an exhaust port 11 is provided on one side of the transparent glass shell 1, a first pipe 13 is fixedly installed outside the exhaust port 11, and the first pipe 13 is used to connect to an external treatment device to treat chlorine, hydrogen, sulfide, etc. in the tail gas.

[0024] A cathode screen 7 is fixedly installed on the upper end of the transparent glass housing 1 , and an anode screen 71 is fixedly installed at a position symmetrical to the cathode screen 7 inside the transparent glass housing 1 .

[0025] The steps of preparing sodium perchlorate using sodium chloride are as follows: first, pouring a solution of sodium chloride and water into the interior of the transparent glass housing 1, and then opening the cathode screen 7 and the anode screen 71, at which time an electrolytic reaction occurs, and the sodium chloride and water are electrolyzed to generate sodium hydroxide, chlorine and hydrogen. The chlorine shell is dissolved in water and the sodium hydroxide in the solution reacts under heating to generate sodium chlorate, sodium chloride and water. Sodium chlorate can be decomposed into sodium perchlorate and sodium chloride by heating. Under the continuous electrolysis of the cathode screen 7 and the anode screen 71, the final product is a mixed solution of sodium chloride and sodium perchlorate. Then, the mixed solution of sodium chloride and sodium perchlorate is evaporated, cooled and crystallized to obtain sodium perchlorate crystals.

[0026] A bucket-shaped filter plate 4 is fixedly installed at the inner bottom end of the first funnel 2, and a hollow cylinder 8 is provided inside the transparent glass shell 1. A spiral dragon 9 is fixedly installed inside the hollow cylinder 8, and a center column 91 is fixedly installed in the middle of the spiral dragon 9. A cone 6 is fixedly installed on the top of the center column 91, and the cone 6 is located between the top opening of the bucket-shaped filter plate 4 and the bottom opening of the second funnel 22. The upper end of the hollow cylinder 8 is rotatably installed in the middle of the top of the bucket-shaped filter plate 4, and the top opening of the hollow cylinder 8 is flush with the top opening of the bucket-shaped filter plate 4. A collecting shell 81 is fixedly installed at the outer bottom end of the hollow cylinder 8, and the collecting shell 81 is connected with the interior of the hollow cylinder 8. The bottom end of the hollow cylinder 8 is rotatably installed on the upper surface of the bottom shell 3, and a motor 32 for providing rotation of the hollow cylinder 8 is fixedly installed inside the bottom shell 3.

[0027] Crude brine is often used as a raw material in the preparation of sodium perchlorate. However, crude brine contains impurities such as calcium ions, barium ions, magnesium ions, and sulfur. When the adsorbent is added, a precipitate will form, which requires repeated filtration before the next step of electrolysis.

[0028] In the traditional preparation of sodium perchlorate, most of the time, compressed air is used for stirring, and the impurities precipitated in the solution need to be continuously filtered out during the reaction process, which leads to an increase in the workload of workers, heavy physical labor, a poor production environment, and inability to achieve automated production. During the reaction process, the motor 32 will drive the hollow cylinder 8 and the spiral dragon 9 to rotate continuously. At this time, the collection shell 81 will collect the precipitate formed at the bottom of the transparent glass shell 1 and a part of the solution, and transport them to the inside of the first funnel 2 under the drive of the spiral dragon 9. At this time, the impurities entering the first funnel 2 will be filtered by the bucket-shaped filter plate 4. In addition to being isolated inside the first funnel 2, as the solution is continuously transported, the impurities will be washed to the outer circle of the bucket-shaped filter plate 4, and continuously collected at the outer circle of the upper surface of the bucket-shaped filter plate 4, which is convenient for workers to open the top plate 21 for cleaning. The solution transported to the first funnel 2 will form a water curtain on the bucket-shaped filter plate 4 due to the bucket-shaped filter plate 4. Compared with the large-volume solution, the water curtain is more easily heated by the hot air blown out by the hot air blower 5, thereby quickly increasing the overall temperature of the solution inside the device, abandoning the traditional heating method of the heating wire, preventing the metal on the heating wire from becoming free during electrolysis and then generating impurities, thereby improving the heating efficiency.

[0029] By arranging the hollow cylinder 8 and the spiral dragon 9, the collecting shell 81 can continuously collect impurities during the reaction and spirally transport them to the upper surface of the bucket filter plate 4 for filtration, and the solution will be transported together during the transportation, which can increase the dissolution area of ​​chlorine in water, improve the efficiency of chlorine participating in the reaction, and then increase the output, reduce the workload of workers, and improve the degree of automation of the device.

[0030] Furthermore, the solution at the lower end is continuously transported to the upper side through the hollow cylinder 8 and the spiral dragon 9 to realize internal circulation stirring, abandoning the traditional stirring method using a stirring rod. This stirring method can drive the entire solution to roll and make the convection effect of the solution stronger.

[0031] A hot air blower 5 is fixedly mounted on one side of the first funnel 2 , and the hot air blower 5 is connected to an output end of an external steam generator through a second pipeline 51 .

[0032] A bucket-shaped filter plate 4 is provided, and the solution will be blocked by the bucket-shaped filter plate 4 to form a water curtain, thereby improving the heating efficiency. Using hot steam for heating can avoid the appearance of impurity ions in the reaction and ensure the purity of the final output. The conical member 6 can ensure that the container is in a relatively sealed state and divert the solution entering the device, so that the solution can be filtered once when entering the device.

[0033] A plurality of annularly distributed support rods 12 are fixedly mounted on the upper surface of the bottom shell 3, and the top ends of the support rods 12 are fixedly mounted on the bottom end of the first funnel 2. The plurality of support rods 12 are tightly fitted to the outer wall of the transparent glass shell 1. Because the transparent glass shell 1 is made of glass, a plurality of support rods 12 are provided to prevent the transparent glass shell 1 from being subjected to stress, thereby protecting the transparent glass shell 1 and increasing its service life.

Claims

1. A sodium perchlorate production device with a mechanical stirring mechanism, comprising a transparent glass housing (1), characterized in that: A first funnel (2) is fixedly mounted on the top of the transparent glass shell (1), a bucket-shaped filter plate (4) is fixedly mounted on the bottom of the first funnel (2), a hollow cylinder (8) is provided inside the transparent glass shell (1), a spiral dragon (9) is fixedly mounted inside the hollow cylinder (8), a center column (91) is fixedly mounted in the middle of the spiral dragon (9), a cone (6) is fixedly mounted on the top of the center column (91), the upper end of the hollow cylinder (8) is rotatably mounted on the middle of the top of the bucket-shaped filter plate (4), the top opening of the hollow cylinder (8) is flush with the top opening of the bucket-shaped filter plate (4), a collecting shell (81) is fixedly mounted on the outer bottom of the hollow cylinder (8), and the collecting shell (81) is communicated with the inside of the hollow cylinder (8).

2. The sodium perchlorate production equipment with a mechanical stirring mechanism according to claim 1, characterized in that: A top plate (21) is detachably mounted at the top opening of the first funnel (2), a feed port is provided in the middle of the top plate (21), a second funnel (22) is fixedly mounted above the feed port, and the conical member (6) is located between the top opening of the bucket-shaped filter plate (4) and the bottom opening of the second funnel (22).

3. The sodium perchlorate production equipment with a mechanical stirring mechanism according to claim 1, characterized in that: A hot air blower (5) is fixedly mounted on one side of the first funnel (2), and the hot air blower (5) is connected to the output end of an external steam generator via a second pipeline (51).

4. The sodium perchlorate production equipment with a mechanical stirring mechanism according to claim 1, characterized in that: A cathode screen (7) is fixedly mounted on the upper end of the interior of the transparent glass shell (1), and an anode screen (71) is fixedly mounted on a position symmetrical to the cathode screen (7) inside the transparent glass shell (1).

5. The sodium perchlorate production equipment with a mechanical stirring mechanism according to claim 1, characterized in that: An exhaust port (11) is provided on one side of the transparent glass housing (1), and a first pipe (13) is fixedly installed outside the exhaust port (11).

6. The sodium perchlorate production equipment with a mechanical stirring mechanism according to claim 1, characterized in that: A bottom shell (3) is fixedly mounted on the bottom end of the transparent glass shell (1), the bottom end of the hollow cylinder (8) is rotatably mounted on the upper surface of the bottom shell (3), and a motor (32) for rotating the hollow cylinder (8) is fixedly mounted inside the bottom shell (3).

7. The sodium perchlorate production equipment with a mechanical stirring mechanism according to claim 6, characterized in that: A plurality of annularly distributed support rods (12) are fixedly mounted on the upper surface of the bottom shell (3); the top ends of the support rods (12) are fixedly mounted on the bottom ends of the first funnel (2); and the plurality of support rods (12) are tightly fitted to the outer wall of the transparent glass shell (1).

8. The sodium perchlorate production equipment with a mechanical stirring mechanism according to claim 7, characterized in that: A discharge pipe (31) is fixedly mounted on one side of the bottom shell (3), the discharge pipe (31) is in communication with the interior of the transparent glass shell (1), and an electric-controlled valve is mounted on the discharge pipe (31).

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