Sodium chlorate evaporation crystallizer with crystalline particle screening function

By designing a sodium chlorate evaporator crystallizer with crystallization particle screening function, the problems of labor and material consumption and corrosion in the crystal filtration and evaporation process have been solved, achieving high-efficiency filtration, heat insulation and corrosion resistance, and temperature detection, thereby improving production efficiency and safety.

CN224474722UActive Publication Date: 2026-07-10LI COUNTRY HONGGUANGYAN CHEM IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LI COUNTRY HONGGUANGYAN CHEM IND CO LTD
Filing Date
2025-06-17
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In the current sodium chlorate crystallization production process, crystal filtration requires a secondary operation, which consumes manpower and resources, and the evaporation process is susceptible to corrosion and the temperature is difficult to control.

Method used

A sodium chlorate evaporator crystallizer with crystallization particle screening function was designed, including crystallization tube, filter, crystal discharge port, evaporation chamber, heating chamber and temperature detection structure. Thermal insulation and corrosion resistance are achieved through polytetrafluoroethylene layer and metal layer, and the vapor temperature is detected by a thermometer.

Benefits of technology

It achieves efficient crystal filtration, heat insulation and corrosion resistance, and real-time temperature monitoring, reducing manpower and material consumption and improving production efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to sodium chlorate evaporation crystallizer technical field discloses a sodium chlorate evaporation crystallizer with crystalline particle screening function, including crystallization pipe, the bottom of crystallization pipe is installed with no. The bottom of no. The bottom of no. The bottom of no. The top of crystallization pipe is installed with evaporation chamber. The utility model discloses through setting crystal filter structure, the crystal particle that crystallization pipe inside production uses the filter of no. The bottom of no. The bottom of no. The bottom of no. The top of crystallization pipe is installed with evaporation chamber. The utility model discloses through setting crystal filter structure, the crystal particle that crystallization pipe inside production uses the filter of no. The bottom of no. The bottom of no. The bottom of no. The top of crystallization pipe is installed with evaporation chamber.
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Description

Technical Field

[0001] This utility model relates to the technical field of sodium chlorate evaporation crystallizers, specifically a sodium chlorate evaporation crystallizer with crystallization particle screening function. Background Technology

[0002] Sodium chlorate is an inorganic compound. Sodium chlorate crystallization is a key step in chlorate production, directly affecting product purity, particle size, and subsequent application performance. It is easily soluble in water and slightly soluble in ethanol. It is widely used in the chemical, water treatment, and pesticide industries. Sodium chlorate evaporation crystallization is suitable for high-concentration solutions, where direct evaporation of water can achieve supersaturation.

[0003] Sodium chlorate crystallization is a crucial step in chlorate production, directly affecting product purity, particle size, and subsequent application performance. Different crystal particles require different applications and melting rates, necessitating crystal filtration. A common practice is secondary filtration, which is labor-intensive and resource-intensive. Therefore, we propose a sodium chlorate evaporator crystallizer with a crystallization particle screening function to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a sodium chlorate evaporator crystallizer with a crystallization particle screening function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sodium chlorate evaporator crystallizer with crystallization particle screening function, comprising a crystallization tube, a second crystal discharge port installed at the bottom of the crystallization tube, a first filter embedded at the bottom of the crystallization tube, a first crystal discharge port installed at the bottom of the second crystal discharge port, a first crystal discharge port provided at the bottom of the second crystal discharge port, an evaporation chamber installed at the top of the crystallization tube, a central pipe provided at the top edge of the evaporation chamber, and a vent pipe connected to the right side of the evaporation chamber.

[0006] As a further technical solution of this utility model, the crystallization tube is connected to the second crystal discharge port through the first filter, and the second crystal discharge port is connected to the first crystal discharge port through the second filter. The second crystal discharge port and the first crystal discharge port are installed sequentially at the bottom of the crystallization tube.

[0007] As a further technical solution of this utility model, a demister is installed inside the evaporation chamber, a first circulation pipe is connected to the top of the evaporation chamber, a compressor is connected to the bottom of the first circulation pipe, an output pipe is connected to the right side of the compressor, a high-temperature conveying pipe is connected to the left side of the evaporation chamber, a heating chamber is connected to the bottom of the high-temperature conveying pipe, a raw material conveying pipe is installed at the bottom of the heating chamber, a second circulation pipe is installed to the left side of the crystallization pipe, a raw water inlet is connected to the right side of the second circulation pipe, and an axial flow pump is installed at the bottom of the second circulation pipe.

[0008] As a further technical solution of this utility model, a detection seat is sleeved on the outside of the high-temperature conveying pipe, a No. 1 thermometer is installed on the top of the detection seat, a control module is installed on the bottom of the detection seat, and a No. 2 thermometer is embedded in the front end of the heating chamber.

[0009] As a further technical solution of this utility model, the second thermometer at the front end of the heating chamber is connected to the control module via a wire, and the detection seat carrying the first thermometer is installed outside the high-temperature conveying pipe. The first thermometer is electrically connected to the control module at the bottom of the detection seat via a wire.

[0010] As a further technical solution of this utility model, a polytetrafluoroethylene layer is provided inside the high-temperature conveying pipe, an insulation layer is provided outside the polytetrafluoroethylene layer, and a metal layer is provided on the outer surface of the insulation layer.

[0011] As a further technical solution of this utility model, the polytetrafluoroethylene layer, the insulation layer and the metal layer are connected in sequence, and the metal layer is sleeved on the outside of the No. 1 circulation pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this sodium chlorate evaporator crystallizer with crystallization particle screening function not only realizes the crystal filtration function and the heat insulation and corrosion resistance function, but also realizes the temperature detection function;

[0013] (1) By setting a crystal filtration structure, the present invention is beneficial as follows: when in use, the crystal particles produced inside the crystallization tube are filtered by the No. 1 filter on the bottom of the crystallization tube and then enter the No. 2 crystal discharge port at the bottom of the crystallization tube. The crystal particles roll inside the No. 2 crystal discharge port and are filtered a second time by the No. 2 filter at the bottom of the No. 2 crystal discharge port, so that part of the particles are discharged through the No. 2 crystal discharge port and the other part is filtered and discharged from the No. 1 crystal discharge port at the bottom of the No. 2 crystal discharge port, thereby realizing the crystal filtration function;

[0014] (2) By setting up a heat insulation and corrosion resistant structure, the present invention is beneficial as follows: When in use, the heating steam in the heating chamber will be transported to the interior of the evaporation chamber through a high-temperature conveying pipe. A polytetrafluoroethylene layer is set inside the high-temperature conveying pipe. The polytetrafluoroethylene layer has corrosion resistance and high temperature resistance. The heat insulation layer set outside the polytetrafluoroethylene layer can keep the high-temperature steam warm. The metal layer outside the No. 1 circulation pipe protects the No. 1 circulation pipe, thereby realizing the heat insulation and corrosion resistant function.

[0015] (3) By setting a temperature detection structure, the present invention is beneficial as follows: When in use, the No. 1 thermometer is installed on the outside of the high-temperature conveying pipe through the detection seat, so that the No. 1 thermometer detects the steam inside the high-temperature conveying pipe, and the No. 2 thermometer detects the steam inside the heating chamber. The information is transmitted to the control module at the bottom of the detection seat. If the temperature difference between the No. 2 thermometer and the No. 1 thermometer is too large, the control module will remind the surroundings through the buzzer on the control module after receiving the information, thereby realizing the temperature detection function. Attached Figure Description

[0016] Figure 1 This is a frontal cross-sectional view of the present invention.

[0017] Figure 2 This is a schematic cross-sectional view of the No. 2 crystal outlet and the No. 1 crystal outlet of this utility model.

[0018] Figure 3 This is a side view cross-sectional structural diagram of the high-temperature conveying pipe of this utility model;

[0019] Figure 4 This is an enlarged structural schematic diagram of the high-temperature conveying pipe and heating chamber of this utility model.

[0020] In the diagram: 1. Demister; 2. Evaporation chamber; 3. Vent pipe; 4. No. 1 circulation pipe; 5. High-temperature conveying pipe; 6. Compressor; 7. Output pipe; 8. No. 2 circulation pipe; 9. Central pipe; 10. Crystallizer; 11. No. 1 crystal discharge port; 12. Axial flow pump; 13. Raw water inlet; 14. Raw material conveying pipe; 15. Heating chamber; 16. No. 1 filter; 17. No. 2 crystal discharge port; 18. No. 2 filter; 19. Insulation layer; 20. Polytetrafluoroethylene layer; 21. Metal layer; 22. No. 1 thermometer; 23. No. 2 thermometer; 24. Detector base; 25. Control module. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4An embodiment of this utility model is provided: a sodium chlorate evaporator crystallizer with crystallization particle screening function, including a crystallization tube 10, a second crystal discharge port 17 installed at the bottom of the crystallization tube 10, a first filter 16 embedded at the bottom of the crystallization tube 10, a first crystal discharge port 11 installed at the bottom of the second crystal discharge port 17, an evaporation chamber 2 installed at the top of the crystallization tube 10, a central pipe 9 provided at the top edge of the evaporation chamber 2, and a ventilation pipe 3 connected to the right side of the evaporation chamber 2;

[0023] The crystallization tube 10 is connected to the second crystal discharge port 17 through the first filter 16. The second crystal discharge port 17 is connected to the first crystal discharge port 11 through the second filter 18. The second crystal discharge port 17 and the first crystal discharge port 11 are installed at the bottom of the crystallization tube 10 in sequence.

[0024] Specifically, such as Figure 1 and Figure 2 As shown, by setting up a crystal filtration structure, when in use, the crystal particles produced inside the crystallization tube 10 are filtered by the first filter 16 on the bottom of the crystallization tube 10 and then enter the second crystal discharge port 17 at the bottom of the crystallization tube 10. The crystal particles roll inside the second crystal discharge port 17 and are filtered a second time by the second filter 18 at the bottom of the second crystal discharge port 17. This allows some of the particles to be discharged through the second crystal discharge port 17, while the other part is filtered and discharged from the first crystal discharge port 11 at the bottom of the second crystal discharge port 17, thus realizing the crystal filtration function.

[0025] An evaporator 1 is installed inside the evaporation chamber 2. A first circulation pipe 4 is connected to the top of the evaporation chamber 2. A compressor 6 is connected to the bottom of the first circulation pipe 4. An output pipe 7 is connected to the right side of the compressor 6. A high-temperature conveying pipe 5 is connected to the left side of the evaporation chamber 2. A heating chamber 15 is connected to the bottom of the high-temperature conveying pipe 5. A raw material conveying pipe 14 is installed at the bottom of the heating chamber 15. A second circulation pipe 8 is installed to the left side of the crystallization pipe 10. A raw water inlet 13 is connected to the right side of the second circulation pipe 8. An axial flow pump 12 is installed at the bottom of the second circulation pipe 8. A detection seat 24 is fitted on the outside of the high-temperature conveying pipe 5. A first temperature gauge 22 is installed on the top of the detection seat 24. A control module 25 is installed at the bottom of the detection seat 24. A second temperature gauge 23 is embedded at the front end of the heating chamber 15.

[0026] The second thermometer 23 at the front end of the heating chamber 15 is connected to the control module 25 via a wire. The detection seat 24 carries the first thermometer 22 and is installed outside the high-temperature conveying pipe 5. The first thermometer 22 is electrically connected to the control module 25 at the bottom of the detection seat 24 via a wire.

[0027] Specifically, such as Figure 1 and Figure 3As shown, by setting up a heat-insulating and corrosion-resistant structure, the steam heated in the heating chamber 15 is transported to the interior of the evaporation chamber 2 through the high-temperature conveying pipe 5 during use. A polytetrafluoroethylene (PTFE) layer 20 is set inside the high-temperature conveying pipe 5. The PTFE layer 20 has corrosion resistance and high temperature resistance. The heat insulation layer 19 set outside the PTFE layer 20 can keep the high-temperature steam warm. The metal layer 21 outside the first circulation pipe 4 protects the first circulation pipe 4, thereby achieving the function of heat insulation and corrosion resistance.

[0028] The high-temperature conveying pipe 5 has a polytetrafluoroethylene layer 20 inside, an insulation layer 19 outside the polytetrafluoroethylene layer 20, and a metal layer 21 on the outer surface of the insulation layer 19.

[0029] The polytetrafluoroethylene layer 20, the insulation layer 19 and the metal layer 21 are connected in sequence, and the metal layer 21 is sleeved on the outside of the first circulation pipe 4;

[0030] Specifically, such as Figure 1 and Figure 4 As shown, by setting up a temperature detection structure, during use, the first thermometer 22 is installed on the outside of the high-temperature conveying pipe 5 through the detection base 24, allowing the first thermometer 22 to detect the steam inside the high-temperature conveying pipe 5, and the second thermometer 23 to detect the steam inside the heating chamber 15. The information is transmitted to the control module 25 at the bottom of the detection base 24. If the temperature difference between the second thermometer 23 and the first thermometer 22 is too large, the control module 25 will receive the information and alert the surroundings through the buzzer on the control module 25, thus realizing the temperature detection function.

[0031] Working Principle: This invention uses raw water to be transported through the raw water inlet 13 into the second circulation pipe 8. The raw water is then pumped into the heating chamber 15 by the axial flow pump 12 and heated into steam. The steam is then transported to the evaporation chamber 2 through the high-temperature delivery pipe 5. The high-temperature delivery pipe 5 has a polytetrafluoroethylene (PTFE) layer 20 inside, which is corrosion-resistant and high-temperature resistant. An insulation layer 19 is installed outside the PTFE layer 20 to keep the high-temperature steam warm. A metal layer 21 protects the first circulation pipe 4. A first thermometer 22 is installed outside the high-temperature delivery pipe 5 via a detection seat 24 to detect the steam inside the high-temperature delivery pipe 5. A second thermometer 23 detects the steam inside the heating chamber 15. The system performs a test and transmits the information to the control module 25 at the bottom of the test base 24. If the temperature difference between the second thermometer 23 and the first thermometer 22 is too large, the control module 25 will receive the information and alert the surrounding area through the buzzer on the control module 25. Check if the high-temperature conveying pipe 5 is abnormal. Then, the evaporation chamber 2 enters the crystallization tube 10 through the central tube 9 for crystallization. The crystal particles produced inside the crystallization tube 10 are filtered by the first filter 16 on the bottom of the crystallization tube 10 and enter the second crystal discharge port 17 at the bottom of the crystallization tube 10. The crystal particles roll inside the second crystal discharge port 17 and are filtered a second time by the second filter 18 at the bottom of the second crystal discharge port 17. Some of the particles are discharged through the second crystal discharge port 17, and the other part is filtered and discharged from the first crystal discharge port 11 at the bottom of the second crystal discharge port 17.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sodium chlorate evaporator crystallizer with crystallization particle screening function, comprising a crystallization tube (10), characterized in that: The bottom of the crystallization tube (10) is equipped with a second crystal discharge port (17), the bottom of the crystallization tube (10) is inlaid with a first filter (16), the bottom of the second crystal discharge port (17) is equipped with a first crystal discharge port (11), the bottom of the second crystal discharge port (17) is provided with a first crystal discharge port (11), the top of the crystallization tube (10) is equipped with an evaporation chamber (2), the top edge of the evaporation chamber (2) is provided with a central pipe (9), and the right side of the evaporation chamber (2) is connected to a ventilation pipe (3).

2. The sodium chlorate evaporator crystallizer with crystallization particle screening function according to claim 1, characterized in that: The crystallization tube (10) is connected to the second crystal outlet (17) through the first filter (16), and the second crystal outlet (17) is connected to the first crystal outlet (11) through the second filter (18). The second crystal outlet (17) and the first crystal outlet (11) are installed sequentially at the bottom of the crystallization tube (10).

3. A sodium chlorate evaporator crystallizer with crystallization particle screening function according to claim 1, characterized in that: The evaporation chamber (2) is equipped with a demister (1). The top of the evaporation chamber (2) is connected to a first circulation pipe (4). The bottom of the first circulation pipe (4) is connected to a compressor (6). The right side of the compressor (6) is connected to an output pipe (7). The left side of the evaporation chamber (2) is connected to a high-temperature conveying pipe (5). The bottom of the high-temperature conveying pipe (5) is connected to a heating chamber (15). The bottom of the heating chamber (15) is equipped with a raw material conveying pipe (14). The left side of the crystallization pipe (10) is equipped with a second circulation pipe (8). The right side of the second circulation pipe (8) is connected to a raw water inlet (13). The bottom of the second circulation pipe (8) is equipped with an axial flow pump (12).

4. A sodium chlorate evaporator crystallizer with crystallization particle screening function according to claim 3, characterized in that: The high-temperature conveying pipe (5) is fitted with a detection seat (24), a first temperature gauge (22) is installed on the top of the detection seat (24), a control module (25) is installed on the bottom of the detection seat (24), and a second temperature gauge (23) is embedded in the front end of the heating chamber (15).

5. A sodium chlorate evaporator crystallizer with crystallization particle screening function according to claim 4, characterized in that: The second thermometer (23) at the front end of the heating chamber (15) is connected to the control module (25) via a wire. The detection seat (24) carrying the first thermometer (22) is installed outside the high-temperature conveying pipe (5). The first thermometer (22) is electrically connected to the control module (25) at the bottom of the detection seat (24) via a wire.

6. A sodium chlorate evaporator crystallizer with crystallization particle screening function according to claim 3, characterized in that: The high-temperature conveying pipe (5) has a polytetrafluoroethylene layer (20) inside, an insulation layer (19) outside the polytetrafluoroethylene layer (20), and a metal layer (21) on the outer surface of the insulation layer (19).

7. A sodium chlorate evaporator crystallizer with crystallization particle screening function according to claim 6, characterized in that: The polytetrafluoroethylene layer (20), the insulation layer (19) and the metal layer (21) are connected in sequence, and the metal layer (21) is sleeved on the outside of the first circulation pipe (4).