Carbon disulfide distillation and concentration device
By designing a continuous production carbon disulfide distillation enrichment device, combined with spiral diversion tank and tube heat exchange tube bundle, the low efficiency and high risk problems under the traditional intermittent production mode are solved, and the stable separation and enrichment of materials are achieved, which improves the improvement of the Productivity and safety.
Patent Information
- Application Number
- CN202423073464.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The traditional carbon disulfide distillation process is an intermittent production method, resulting in low production efficiency, equipment turnover and temporary storage of materials increase leakage risk, high operational risk, and equipment investment and operation are complex.
A carbon disulfide distillation and enrichment device was designed. By optimizing the distillation and enrichment process into a continuous production process, the structure of the upper sealing head, the gas raising tank, the separation tank, the enrichment tank and the lower sealing head was adopted, and the inner wall of the separation tank was set up along the There are spiral diversion grooves and diversion plates, combined with spiral heating pipes and column tube heat exchange pipe bundles, to achieve continuous separation and enrichment of materials, reduce leakage points during equipment and material turnover, and ensure stability through heating medium and temperature monitoring. run.
It realizes continuous operation of the production process, reduces the risk of material leakage, improves production efficiency, simplifies operation steps, reduces equipment investment, and enhances production safety and automation.
Smart Images
Figure CN222357978U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of chemical separation equipment, and in particular relates to a carbon disulfide distillation and concentration device. Background Art
[0002] In the chemical separation process, especially in the production of insoluble sulfur, carbon disulfide is used to quench the molten sulfur to form insoluble sulfur. Subsequently, a large amount of fresh carbon disulfide is used for washing, and this step will produce a large amount of carbon disulfide mother liquor. The mother liquor is mostly composed of carbon disulfide, containing a small amount of sulfur and trace impurities. For this part of the material, the traditional process uses distillation to separate, in which carbon disulfide is collected and reused after gas phase condensation. The residual liquid after distillation enters the gas system to further extract the carbon disulfide therein, aiming to reduce the concentration of carbon disulfide and thus improve its utilization rate.
[0003] However, the traditional distillation process is an intermittent production method, resulting in relatively low production efficiency. After the distillation process, the materials need to be transferred and temporarily stored before entering the flash distillation and concentration process. In this process, the turnover of equipment and the temporary storage of materials lead to more leakage points, increasing the risk of material leakage and dripping, and also increasing the danger of operation.
[0004] Therefore, in view of these problems existing in the traditional process, it is particularly important to develop a carbon disulfide distillation and concentration device that can produce continuously, reduce leakage risks and improve production efficiency. Utility Model Content
[0005] In view of the above shortcomings in the prior art, the purpose of the utility model is to provide a carbon disulfide distillation and concentration device, which realizes the effective combination of material distillation separation and concentration process, optimizes the intermittent process in the original production into a continuous production process, not only simplifies the process flow, reduces the number of leakage points in the equipment and material turnover process, ensures the smooth and safe operation of production, but also significantly improves production efficiency and reduces the risk of material leakage. At the same time, the device provides great convenience for realizing production automation by reducing equipment investment and simplifying personnel operation process.
[0006] The utility model is realized by adopting the following technical solutions:
[0007] The carbon disulfide distillation and concentration device comprises an upper head, a gas raising chamber, a separation chamber, a concentration chamber and a lower head which are connected in sequence from top to bottom. A spirally distributed guide groove is provided along the inner wall of the separation chamber, a guide plate is provided on the side of the guide groove, a spiral heating pipe is provided at the bottom of the guide groove, and the central area of the separation chamber is a cavity which runs through from top to bottom.
[0008] A feed port is provided on the side wall of the separation bin, and the starting height of the guide groove is located 50-200 mm below the feed port. The guide groove extends downward in a spiral shape along the inner wall of the separation bin at a spiral angle of 15-40° and continues to the bottom of the separation bin.
[0009] The side walls of the upper head, the gas lifting chamber, the separation chamber and the lower head are respectively provided with a jacket and a tower thermometer, and the side of the jacket is respectively connected with a heating medium inlet and a heating medium outlet.
[0010] On the separation bin, the heating medium inlet is connected to the lower inlet of the spiral heating tube through a pipeline; the heating medium outlet is connected to the upper outlet of the spiral heating tube through a pipeline, so that the heating medium can enter the spiral heating tube.
[0011] The width of the guide groove is 100-300 mm; the height of the guide plate is 100-400 mm.
[0012] A tube bundle for heat exchange is arranged inside the concentration bin, and the diameter of the tube bundle for heat exchange is 6-40 mm.
[0013] The top of the upper head is provided with an air outlet, a pressure gauge and a tower top thermometer; the side wall of the lower head is provided with a liquid level gauge, and the bottom of the lower head is provided with a discharge port; the side walls of the gas lifting bin and the separation bin are respectively provided with viewing holes.
[0014] The number of tower sections of the gas lifting bin, separation bin or concentration bin can be one or more, and they are connected by flanges.
[0015] The working principle of the carbon disulfide distillation and concentration device is as follows:
[0016] The heated carbon disulfide mother liquor is pumped into the separation chamber through the feed port located on the side wall of the separation chamber. After entering, the mother liquor is guided by the guide plate to the spirally distributed guide groove. The mother liquor is diverted along its guide surface in the guide groove. At the same time, the material is heated by the spiral heating pipe located at the bottom of the guide groove, so that the material can transfer heat and mass in the guide groove, thereby distilling and separating the material in time.
[0017] During the diversion and heating process, the high melting point material will flow into the concentration bin. A tube bundle is installed inside the concentration bin to further evaporate the carbon disulfide material. The low boiling point carbon disulfide is evaporated during the flow process. These gaseous carbon disulfide will pass through the cavity in the center of the separation bin and be removed to the gas lifting bin and the upper head in time. At the upper head, the gaseous carbon disulfide is discharged through the gas outlet and enters the subsequent condensation facility for collection and reuse.
[0018] At the same time, in order to monitor the entire distillation and concentration process, tower thermometers are installed on the side walls of the upper head, gas lifting bin, separation bin and lower head for real-time monitoring of the temperature of each chamber; viewing holes are provided on the side walls of the gas lifting bin and separation bin to facilitate operators to observe the material status and flow conditions in the chamber.
[0019] After entering the concentration bin for further processing, the high-boiling-point materials finally enter the lower head. At the lower head, the materials are temporarily stored for heat preservation, and the level gauge on the side wall is used to monitor the material level in real time. After that, these materials are transferred to the next production process through the discharge port.
[0020] The outer jacket of the entire device is heated and insulated by a heating medium (such as steam or thermal oil) to ensure the smooth progress of the distillation and concentration process. In addition, the number of tower sections of the gas-raising chamber, separation chamber or concentration chamber can be one or more. This design makes the entire device highly flexible and scalable, and can be configured according to actual production needs.
[0021] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0022] (1) The carbon disulfide distillation and concentration device described in the utility model effectively combines the material characteristics and requirements in the production process of insoluble sulfur, transforms the equipment, and integrates the requirements of the distillation system and the concentration system, which not only simplifies the cumbersome operating steps in the original production process, but also reduces the investment cost of production equipment;
[0023] (2) The utility model can make the original intermittent production process continuous, simplify the production process and improve safety controllability, and also provide good operating conditions for automation implementation. The feed system can be adjusted through the control loop composed of a flow meter and a regulating valve to stabilize the feed flow rate. The discharge system is controlled by a liquid level meter and a regulating valve control loop to achieve stable control of the discharge system, thereby realizing full process automation, reducing the probability of accidents caused by manual operation, enhancing production safety, improving product production efficiency, and solving product bottleneck problems. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the overall plan structure of the carbon disulfide distillation and concentration device described in the utility model;
[0025] Figure 2 This is a schematic diagram of the three-dimensional structure inside the separation bin of the utility model;
[0026] In the figure: 1. upper head; 2. gas lifting chamber; 3. separation chamber; 4. concentration chamber; 5. lower head; 6. gas outlet; 7. feed inlet; 8. discharge port; 9. pressure gauge; 10. tower top thermometer; 11. heating medium inlet; 12. jacket; 13. sight hole; 14. liquid level gauge; 15. guide groove; 16. guide plate; 17. spiral heating tube; 18. cavity; 19. shell-and-tube heat exchange tube bundle; 20. thermometer in the tower; 21. heating medium outlet. DETAILED DESCRIPTION
[0027] In order to make the purpose and technical solution of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings.
[0028] Example 1
[0029] like Figure 1-2 As shown, the carbon disulfide distillation and concentration device comprises an upper head 1, a gas raising chamber 2, a separation chamber 3, a concentration chamber 4 and a lower head 5 which are sequentially connected from top to bottom, a spirally distributed guide groove 15 is provided along the inner wall of the separation chamber 3, a guide plate 16 is provided on the side of the guide groove 15, a spiral heating pipe 17 is provided at the bottom of the guide groove 15, and the central area of the separation chamber 3 is a cavity 18 which runs through from top to bottom.
[0030] A feed port 7 is provided on the side wall of the separation bin 3. The starting height of the guide groove 15 is 50 mm below the feed port 7. The guide groove 15 extends downward in a spiral shape along the inner wall of the separation bin 3 at a spiral angle of 15° and continues to the bottom of the separation bin 3.
[0031] The side walls of the upper head 1, the gas lifting bin 2, the separation bin 3 and the lower head 5 are respectively provided with a jacket 12 and a tower thermometer 20, and the sides of the jacket 12 are respectively connected with a heating medium inlet 11 and a heating medium outlet 21, and the heating medium is steam.
[0032] On the separation chamber 3 , the heating medium inlet 11 is connected to the lower inlet of the spiral heating tube 17 through a pipeline; the heating medium outlet 21 is connected to the upper outlet of the spiral heating tube 17 through a pipeline.
[0033] The width of the guide groove 15 is 100 mm; the height of the guide plate 16 is 100 mm.
[0034] A tube bundle 19 for heat exchange is provided inside the concentration bin 4, and the diameter of the tube bundle 19 is 6 mm.
[0035] The top of the upper head 1 is provided with an air outlet 6, a pressure gauge 9 and a tower top thermometer 10; the side wall of the lower head 5 is provided with a liquid level gauge 14, and the bottom of the lower head 5 is provided with a discharge port 8; the side walls of the gas lifting bin 2 and the separation bin 3 are respectively provided with viewing holes 13.
[0036] The number of tower sections of the gas lifting bin 2 is one, the number of tower sections of the separation bin 3 is two, and the number of tower sections of the concentration bin 4 is two.
[0037] When working, the specific steps are as follows:
[0038] The heated carbon disulfide mother liquor is pumped to the feed port 7 and slowly injected into the separation bin 3. After the mother liquor enters the separation bin 3, it is guided by the guide plate 16 into the spirally distributed guide groove 15 and begins to flow along the groove. The material in the guide groove 15 is heated by the spiral heating tube 17 to form a liquid film of the material, thereby accelerating the distillation process. During the heating and diversion process, materials such as high melting point impurities and incompletely reacted sulfur will flow downstream to the concentration bin 4. The evaporated gaseous carbon disulfide rises through the cavity 18 in the center of the separation bin 3 and enters the gas riser 2 and the upper head 1. At the upper head 1, the gaseous carbon disulfide is discharged through the gas outlet 6 and enters the subsequent condensation facility for collection and reuse. In the concentration bin 4, the carbon disulfide material is further evaporated by the tube-in-tube heat exchange tube bundle 19 to increase the concentration. At the lower head 5, the high boiling point material is temporarily stored and then transferred to the next production process through the discharge port 8 for further processing.
[0039] During the process, the outlet temperature is monitored by the tower top thermometer 10, and the temperature of each chamber is monitored by the tower thermometer 20 to ensure that the temperature is stable and meets the process requirements. The state and flow of materials in the gas lifting bin 2 and the separation bin 3 are observed through the viewing hole 13 to promptly detect and handle abnormalities. The liquid level meter 14 is used to monitor the material level in the lower head 5 in real time to ensure that the material does not overflow or is too low.
[0040] Example 2
[0041] like Figure 1-2 As shown, the carbon disulfide distillation and concentration device comprises an upper head 1, a gas raising chamber 2, a separation chamber 3, a concentration chamber 4 and a lower head 5 which are sequentially connected from top to bottom, a spirally distributed guide groove 15 is provided along the inner wall of the separation chamber 3, a guide plate 16 is provided on the side of the guide groove 15, a spiral heating pipe 17 is provided at the bottom of the guide groove 15, and the central area of the separation chamber 3 is a cavity 18 which runs through from top to bottom.
[0042] A feed port 7 is provided on the side wall of the separation bin 3. The starting height of the guide groove 15 is located 100 mm below the feed port 7. The guide groove 15 extends downward in a spiral shape along the inner wall of the separation bin 3 at a spiral angle of 30° and continues to the bottom of the separation bin 3.
[0043] The side walls of the upper head 1, the gas lifting bin 2, the separation bin 3 and the lower head 5 are respectively provided with a jacket 12 and a tower thermometer 20, and the sides of the jacket 12 are respectively connected with a heating medium inlet 11 and a heating medium outlet 21, and the heating medium is heat transfer oil.
[0044] On the separation chamber 3 , the heating medium inlet 11 is connected to the lower inlet of the spiral heating tube 17 through a pipeline; the heating medium outlet 21 is connected to the upper outlet of the spiral heating tube 17 through a pipeline.
[0045] The width of the guide groove 15 is 200 mm; the height of the guide plate 16 is 300 mm.
[0046] The concentration bin 4 is provided with a tube bundle 19 for heat exchange, and the diameter of the tube bundle 19 is 20 mm.
[0047] The top of the upper head 1 is provided with an air outlet 6, a pressure gauge 9 and a tower top thermometer 10; the side wall of the lower head 5 is provided with a liquid level gauge 14, and the bottom of the lower head 5 is provided with a discharge port 8; the side walls of the gas lifting bin 2 and the separation bin 3 are respectively provided with viewing holes 13.
[0048] The number of tower sections of the gas lifting bin 2 is one, the number of tower sections of the separation bin 3 is two, and the number of tower sections of the concentration bin 4 is two.
[0049] The working steps are the same as those in Example 1.
[0050] Example 3
[0051] like Figure 1-2 As shown, the carbon disulfide distillation and concentration device comprises an upper head 1, a gas raising chamber 2, a separation chamber 3, a concentration chamber 4 and a lower head 5 which are sequentially connected from top to bottom, a spirally distributed guide groove 15 is provided along the inner wall of the separation chamber 3, a guide plate 16 is provided on the side of the guide groove 15, a spiral heating pipe 17 is provided at the bottom of the guide groove 15, and the central area of the separation chamber 3 is a cavity 18 which runs through from top to bottom.
[0052] A feed port 7 is provided on the side wall of the separation bin 3. The starting height of the guide groove 15 is 200 mm below the feed port 7. The guide groove 15 extends downward in a spiral shape along the inner wall of the separation bin 3 at a spiral angle of 40° and continues to the bottom of the separation bin 3.
[0053] The side walls of the upper head 1, the gas lifting bin 2, the separation bin 3 and the lower head 5 are respectively provided with a jacket 12 and a tower thermometer 20, and the sides of the jacket 12 are respectively connected with a heating medium inlet 11 and a heating medium outlet 21, and the heating medium is steam.
[0054] On the separation chamber 3 , the heating medium inlet 11 is connected to the lower inlet of the spiral heating tube 17 through a pipeline; the heating medium outlet 21 is connected to the upper outlet of the spiral heating tube 17 through a pipeline.
[0055] The width of the guide groove 15 is 300 mm; the height of the guide plate 16 is 400 mm.
[0056] The concentration bin 4 is provided with a tube bundle 19 for heat exchange, and the diameter of the tube bundle 19 is 40 mm.
[0057] The top of the upper head 1 is provided with an air outlet 6, a pressure gauge 9 and a tower top thermometer 10; the side wall of the lower head 5 is provided with a liquid level gauge 14, and the bottom of the lower head 5 is provided with a discharge port 8; the side walls of the gas lifting bin 2 and the separation bin 3 are respectively provided with viewing holes 13.
[0058] The gas lifting bin 2 has two tower sections, the separation bin 3 has three tower sections, and the concentration bin 4 has two tower sections.
[0059] The working steps are the same as those in Example 1.
Claims
1. A carbon disulfide distillation and concentration device, characterized in that: The invention comprises an upper end cap (1), a gas raising chamber (2), a separation chamber (3), a concentration chamber (4) and a lower end cap (5) which are connected in sequence from top to bottom; a spirally distributed flow guide groove (15) is provided along the inner wall of the separation chamber (3); a flow guide plate (16) is provided on the side of the flow guide groove (15); a spiral heating pipe (17) is provided at the bottom of the flow guide groove (15); and the central area of the separation chamber (3) is a cavity (18) which penetrates from top to bottom.
2. The carbon disulfide distillation and concentration device according to claim 1, characterized in that: A feed inlet (7) is provided on the side wall of the separation bin (3), and the starting height of the guide groove (15) is located 50-200 mm below the feed inlet (7). The guide groove (15) extends downward in a spiral shape along the inner wall of the separation bin (3) at a spiral angle of 15-40° and continues to the bottom of the separation bin (3).
3. The carbon disulfide distillation and concentration device according to claim 2, characterized in that: The side walls of the upper head (1), the gas lifting chamber (2), the separation chamber (3) and the lower head (5) are respectively provided with a jacket (12) and a tower thermometer (20), and the side surfaces of the jacket (12) are respectively connected with a heating medium inlet (11) and a heating medium outlet (21).
4. The carbon disulfide distillation and concentration device according to claim 3, characterized in that: On the separation chamber (3), the heating medium inlet (11) is connected to the lower inlet of the spiral heating tube (17) through a pipeline; and the heating medium outlet (21) is connected to the upper outlet of the spiral heating tube (17) through a pipeline.
5. The carbon disulfide distillation and concentration device according to claim 1, characterized in that: The width of the guide groove (15) is 100-300 mm; the height of the guide plate (16) is 100-400 mm.
6. The carbon disulfide distillation and concentration device according to claim 1, characterized in that: A tube-in-tube heat exchange bundle (19) is provided inside the concentration bin (4), and the diameter of the tube-in-tube heat exchange bundle (19) is 6-40 mm.
7. The carbon disulfide distillation and concentration device according to claim 1, characterized in that: The top of the upper end cap (1) is provided with an air outlet (6), a pressure gauge (9) and a tower top thermometer (10); the side wall of the lower end cap (5) is provided with a liquid level gauge (14), and the bottom of the lower end cap (5) is provided with a discharge port (8); and the side walls of the gas lifting bin (2) and the separation bin (3) are respectively provided with viewing holes (13).
8. The carbon disulfide distillation and concentration device according to claim 1, characterized in that: The number of tower sections of the gas lifting chamber (2), separation chamber (3) or concentration chamber (4) can be one or more.