Disulfide purification device with wastewater recovery structure

Abstract

The utility model relates to the technical field of disulphide production, and discloses a disulphide purification device with a wastewater recovery structure, which comprises a primary reaction separation mechanism and a filtering separation mechanism, the primary reaction separation mechanism comprises a reaction kettle, and a stirring paddle is arranged at the central position in the reaction kettle; the upper end and the lower end of the annular outer side wall of the reaction kettle are each fixedly sleeved with an annular heater. According to the utility model, the wastewater recycling mechanism for deep treatment is additionally arranged, the wastewater collecting box connected with the wastewater discharge interface of the distillation tower is arranged, wastewater containing an extracting agent and a small amount of disulphide generated in the distillation process is collected, and the extracting agent recycling device is arranged and can be an activated carbon adsorber or a reverse osmosis membrane filter; the extraction agent in the wastewater is recycled, trace impurities in the wastewater are further removed, and the purity of the recycled water is improved, so that the recycled water meets the discharge standard or the water quality requirement for recycling.

Description

Technical Field

[0001] This utility model relates to the field of disulfide production technology, specifically a disulfide purification device with a wastewater recovery structure. Background Technology

[0002] Disulfides are compounds containing disulfide bonds (-SS-), which hold an important position in the field of chemistry. In a disulfide molecule, two sulfur atoms are linked by a covalent bond to form a disulfide bond, a structure that endows disulfides with some unique chemical properties. Currently, purification equipment is required for the industrial production and processing of disulfides.

[0003] The existing disulfide purification equipment still has the following problems when in use: wastewater is generated after the distillation process. The wastewater may still contain trace amounts of disulfides, extractant degradation products or other impurities that are difficult to completely remove through existing recycling processes, resulting in substandard water quality that cannot be directly discharged or recycled. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a disulfide purification device with a wastewater recovery structure, thus solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a disulfide purification device with a wastewater recovery structure, comprising a preliminary reaction separation mechanism and a filtration separation mechanism. The preliminary reaction separation mechanism includes a reaction vessel, with a stirring paddle positioned at the center of the reaction vessel. An annular heater is fixedly fitted at each of the upper and lower ends of the annular outer wall of the reaction vessel. The same heating controller is fixedly installed at one end of each of the two annular heaters. A through groove is formed between the centers of the upper and lower side walls of the top end cap. A driver is fixedly installed at the top of the top end cap and at the opening of the through groove. The stirring paddle is fixedly connected to the bottom drive end of the driver.

[0008] As a further embodiment of this utility model: the filtration and separation mechanism includes a filtration separator disposed at the bottom of the reaction vessel. The filtration separator is provided with filter paper, filter screen or filter element. The filtration separator is connected to a distillation mechanism via a pipe. The distillation mechanism includes a distillation tower connected to the filtration separator via a pipe. A wastewater recovery mechanism is disposed at the wastewater discharge port at one end of the distillation tower. The wastewater recovery mechanism includes a wastewater collection tank. The wastewater collection tank is connected to the wastewater discharge port via a pipe. An extractant recovery device is fixedly installed at the discharge port at the bottom of the wastewater collection tank. It can be an activated carbon adsorber or a reverse osmosis membrane filter. The bottom of the extractant recovery device is provided with a disulfide discharge connector and a drainage connector.

[0009] As a further embodiment of this utility model: an end cap is fixedly installed at the openings at both the top and bottom ends of the reactor. A through groove is provided between the upper and lower side walls of the end caps, and a material pipe is fixedly installed in the through groove. Valves are configured on the two material pipes at the top and one on one side of the bottom end, and the material pipe on the other side of the bottom end is connected to a filter separator.

[0010] As a further embodiment of this utility model: a heating base is provided at the bottom of the distillation column, and a disulfide discharge connector is provided at the bottom of the distillation column; an extractant storage tank is fixedly installed above the other end of the distillation column, and the extractant storage tank is connected to a condenser through a condensation reflux pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In this utility model, by adding a wastewater recovery mechanism for advanced treatment, a wastewater collection tank is set up with a connection to the wastewater discharge interface of the distillation tower to collect the wastewater containing extractant and a small amount of disulfide generated during the distillation process. It is equipped with an extractant recovery device, which can be an activated carbon adsorber or a reverse osmosis membrane filter, to recover the extractant in the wastewater, further remove trace impurities in the wastewater, improve the purity of the recovered water, and make it meet the discharge standards or the water quality requirements for recycling.

[0013] 2. In this utility model, by adopting a highly efficient reaction separation structure design, it includes a reaction vessel into which raw materials containing disulfides and an extractant can be added. The reaction vessel is heated by an external ring heater, which dissolves the disulfides in the extractant, thus achieving preliminary separation. At the same time, it is equipped with a stirring mechanism to promote full mixing and reaction between the raw materials and the extractant. Attached Figure Description

[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0015] Figure 2The overall three-dimensional structure of this utility model Figure 2 ;

[0016] Figure 3 This is a perspective view of the preliminary reaction separation mechanism of this utility model;

[0017] Figure 4 This is a perspective view of the filtration and separation mechanism, distillation mechanism, and wastewater recovery mechanism of this utility model.

[0018] In the diagram: 1. Preliminary reaction separation mechanism; 2. Filtration separation mechanism; 3. Distillation mechanism; 4. Wastewater recovery mechanism; 11. Reactor; 12. End cap; 13. Feed pipe; 14. Driver; 15. Stirring paddle; 16. Annular heater; 17. Heating controller; 31. Distillation column; 32. Heating base; 33. Condenser; 34. Extractant storage tank; 41. Wastewater collection tank; 42. Extractant recovery device. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4In this embodiment of the utility model, the disulfide purification device with a wastewater recovery structure includes a preliminary reaction separation mechanism 1 and a filtration separation mechanism 2. The preliminary reaction separation mechanism 1 includes a reaction vessel 11, with a stirring paddle 15 located at the center of the reaction vessel 11. An annular heater 16 is fixedly fitted at both ends of the annular outer wall of the reaction vessel 11. The same heating controller 17 is fixedly installed at one end of the two annular heaters 16. A through groove is opened between the centers of the upper and lower side walls of the top end cover 12. A driver 14 is fixedly installed at the top of the top end cover 12 and at the opening of the through groove. The bottom drive end of the driver 14 is fixedly connected to the stirring paddle 15. The whole adopts a high-efficiency reaction separation structure design. It includes a reaction vessel 11, into which raw materials containing disulfide and extractant can be added. The raw materials are heated by the annular heater 16 outside the reaction vessel 11. Heating causes the disulfide to dissolve in the extractant, achieving preliminary separation. At the same time, it is equipped with a stirring mechanism, i.e., the stirring paddle 15, which can promote the full mixing and reaction of the raw materials and extractant.

[0023] The filtration and separation mechanism 2 includes a filter separator located at the bottom of the reaction vessel 11. The filter separator contains filter paper, a filter screen, or a filter element. The filter separator is connected to the distillation mechanism 3 via a pipe. The distillation mechanism 3 includes a distillation column 31 connected to the filter separator via a pipe. A wastewater recovery mechanism 4 is located at the wastewater discharge port of one end of the distillation column 31. The wastewater recovery mechanism includes a wastewater collection tank 41, which is connected to the wastewater discharge port via a pipe. An extractant recovery device 42, which can be an activated carbon adsorber or a reverse osmosis device, is fixedly installed at the discharge port at the bottom of the wastewater collection tank 41. The membrane filter and extractant recovery device 42 are equipped with a disulfide discharge connector and a drainage connector at the bottom. The overall wastewater recovery mechanism 4 for deep treatment is added. A wastewater collection tank 41 is provided with a wastewater discharge interface connected to the distillation tower 31 to collect the wastewater containing extractant and a small amount of disulfide generated during the distillation process. It is equipped with an extractant recovery device 42, which can be an activated carbon adsorber or a reverse osmosis membrane filter, to recover the extractant in the wastewater, further remove trace impurities in the wastewater, improve the purity of the recovered water, and make it meet the discharge standards or the water quality requirements for recycling.

[0024] An end cap 12 is fixedly installed at each of the upper and lower openings of the reactor 11. A through groove is opened between the upper and lower side walls of the end cap 12, and a feed pipe 13 is fixedly installed in the through groove. Valves are configured on the two top and one bottom feed pipe 13. The other bottom feed pipe 13 is connected to a filter separator. The filter separator is connected to the reactor 11 and is used to filter the mixture after the reaction, separate insoluble impurities, and obtain an extract containing disulfides. Filter materials such as filter paper, filter screen or filter cartridge can be used, and the appropriate filtration precision can be selected according to the actual situation.

[0025] A heating base 32 is provided at the bottom of the distillation column 31, and a disulfide discharge connector is provided at the bottom of the distillation column 31. An extractant storage tank 34 is fixedly installed at the other end of the distillation column 31. The extractant storage tank 34 is connected to the condenser 33 through a condensation reflux pipe. The extraction mixture enters the distillation mechanism 3. In the distillation column 31, the extraction mixture is heated by the heating base 32 to evaporate. The vapor is cooled and condensed into liquid in the condenser 33 and returned to the extractant storage tank 34 for recycling. The disulfide remains at the bottom of the distillation column 31, thus achieving purification.

[0026] The working principle of this utility model is as follows: Extraction and separation: Raw materials containing disulfides and extractant are added to reaction vessel 11. Under heating and stirring conditions, disulfides dissolve in extractant, while other impurities in the raw materials remain insoluble. Impurities are removed by filtration separation mechanism 2 to obtain extract containing disulfides. Distillation and purification: The extract mixture enters distillation mechanism 3. In distillation tower 31, the extract mixture is heated by heating base 32 to evaporate. The vapor is cooled and condensed into liquid in condenser 33 and returned to extractant storage tank 34 for recycling. Disulfides remain at the bottom of distillation tower 31, achieving purification. Wastewater recovery and treatment: Wastewater generated during distillation enters wastewater collection tank 41 and then enters extractant recovery device 42. The extractant is recovered through extraction or adsorption operations. The recovered extractant is returned to the system for recycling. The remaining wastewater enters wastewater treatment structure and undergoes a series of treatments before being discharged in compliance with standards or recycled.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for purifying disulfide with wastewater recovery structure, comprising a preliminary reaction separation mechanism (1) and a filtration separation mechanism (2); characterized in that The preliminary reaction separation mechanism (1) comprises a reaction kettle (11), a stirring paddle (15) is arranged at the center of the reaction kettle (11), and a ring heater (16) is fixedly connected to the upper and lower ends of the outer wall of the reaction kettle (11); one end of the two ring heaters (16) is fixedly connected to the same heating controller (17). The filtration separation mechanism (2) comprises a filter separator arranged at the bottom end of the reaction kettle (11), the filter separator is connected to a distillation mechanism (3) through a pipeline, and the distillation mechanism (3) comprises a distillation tower (31) connected to the filter separator through a pipeline. The distillation tower (31) is provided with a wastewater recovery mechanism (4) at one end of the wastewater discharge interface, the wastewater recovery mechanism comprises a wastewater collection tank (41), the wastewater collection tank (41) is connected to the wastewater discharge interface through a pipeline, and an extractant recovery device (42) is fixedly connected to the discharge port at the bottom end of the wastewater collection tank (41).

2. The disulfide purification device with a wastewater recovery structure according to claim 1, characterized by: An end cover (12) is fixedly connected to the opening at the upper and lower ends of the reaction kettle (11), a through slot is formed between the upper and lower sidewalls at both ends of the end cover (12), and a material pipe (13) is fixedly connected in the through slot.

3. The disulfide purification device with a wastewater recovery structure according to claim 2, characterized by: Two material pipes (13) at the top and one material pipe (13) at the bottom of one side are provided with valves, and the material pipe (13) at the bottom of the other side is connected to the filter separator.

4. The disulfide purification device with a wastewater recovery structure according to claim 2, characterized by: A through slot is formed between the center positions of the upper and lower sidewalls of the end cover (12) at the top, a driver (14) is fixedly connected to the top of the end cover (12) and located at the opening of the through slot, and the bottom driving end of the driver (14) is fixedly connected to the stirring paddle (15).

5. The disulfide purification apparatus having a wastewater recovery structure according to claim 1, characterized by: A heating base (32) is arranged at the bottom end of the distillation tower (31), and the distillation tower (31) is provided with a heating base (32) and a disulfide discharge joint at the bottom end.

6. The disulfide purification device with a wastewater recovery structure according to claim 1, characterized by: An extractant storage tank (34) is fixedly connected above the other end of the distillation tower (31), and the extractant storage tank (34) is connected to a condenser (33) through a condensation reflux pipeline.

7. The disulfide purification apparatus having a wastewater recovery structure according to claim 1, characterized by: The bottom end of the extractant recovery device (42) is provided with a disulfide discharge joint and a drain joint.

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