Chlorobenzene liquid phase dehydration system

Abstract

The invention belongs to the technical field of chlorobenzene, and particularly relates to a chlorobenzene liquid phase dehydration system which comprises a raw material tank, a heating tank and an adsorption tower, a molecular sieve dehydration assembly is installed in the adsorption tower, and molecular sieves are arranged on the bottom sides of the interiors of a plurality of adsorption bins of the molecular sieve dehydration assembly; third feeding ports formed in the bottom sides of the left parts of the multiple adsorption bins are fixedly communicated with the feeding pipe through fifth electromagnetic valves, and third discharging ports formed in the top sides of the right parts of the multiple adsorption bins are fixedly communicated with the discharging pipe through fifth electromagnetic valves, so that molecular sieve dehydration treatment on chlorobenzene in the multiple adsorption bins is achieved; and feeding and discharging of chlorobenzene in each group of adsorption bins are independently controlled, so that the molecular sieve dehydration procedure in other adsorption bins is still continued when a certain group of adsorption bins is shut down to replace molecular sieves, and the dehydration system is ensured to continuously run without shutdown.

Description

Technical Field

[0001] The invention relates to the technical field of chlorobenzene, in particular to a chlorobenzene liquid phase dehydration system. Background Art

[0002] Chlorobenzene is a colorless, transparent organic liquid with a special aromatic smell, which is widely used in the chemical, pharmaceutical and pesticide industries. It is not only an important solvent, but also an intermediate in a variety of organic synthesis reactions, such as the production of dyes, drugs and pesticides. However, during the production and storage process, chlorobenzene often contains a certain amount of water, which not only affects its purity, but may also have an adverse effect on subsequent chemical reactions, such as reducing the reaction yield or causing the formation of by-products. Therefore, the development of an efficient and reliable chlorobenzene liquid phase dehydration system is crucial to improving product quality and process efficiency.

[0003] The existing chlorobenzene liquid phase dehydration system is provided with an adsorption tower, which utilizes the physical adsorption effect of molecular sieve to dehydrate chlorobenzene. Since the existing molecular sieve adsorption tower needs to replace the molecular sieve after running for a period of time, but the system needs to be shut down for maintenance when the molecular sieve is replaced, the chlorobenzene liquid phase dehydration system cannot be produced continuously, which reduces the dehydration efficiency of chlorobenzene. Therefore, we propose a chlorobenzene liquid phase dehydration system. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a chlorobenzene liquid phase dehydration system, in which a molecular sieve dehydration component is installed inside an adsorption tower. The molecular sieve dehydration component is provided with molecular sieves on the inner bottom sides of several adsorption bins, and the chlorobenzene inlet and outlet in each group of adsorption bins are independently controlled. When a group of adsorption bins is shut down to replace the molecular sieves, the molecular sieve dehydration process is continued in other adsorption bins, thereby ensuring that the dehydration system can run continuously without stopping, thus solving the background problem.

[0005] To achieve the above purpose, the present invention is implemented through the following technical scheme: a chlorobenzene liquid phase dehydration system, including a raw material tank, a heating tank and an adsorption tower, the raw material tank is arranged on the right side of the heating tank, the adsorption tower is arranged on the rear side of the heating tank, two groups of filter boxes are arranged between the raw material tank and the heating tank, a delivery pump 2 is arranged between the heating tank and the filter box, a delivery pump 1 is arranged between the heating tank and the adsorption tower, a plurality of adsorption bins are opened inside the adsorption tower, molecular sieves are arranged on the bottom sides of the inner parts of the plurality of adsorption bins, a filter assembly is installed inside the filter box, a stirring and heat equalizing assembly is installed inside the heating tank, a molecular sieve dehydration assembly is installed inside the adsorption tower, and an adsorption regeneration assembly is also installed inside the adsorption tower.

[0006] Preferably, the filtering component includes a filtering cylinder and a filtering plate. The filtering cylinder is arranged on the inner top side of the filtering box, and the filtering plate is arranged on the inner bottom side of the filtering box. Feed inlets four are formed on one side of two groups of the filtering boxes close to each other. The feed inlets four are communicated with the filtering cylinder. A discharge outlet four is formed at the bottom left side of the filtering box. A collection port is arranged on the right side of the filtering box. The bottom side of the collection port is flush with the bottom side of the right part of the filtering plate.

[0007] Preferably, the stirring and heat equalizing component includes a driving motor one. The driving motor one is fixedly installed on the top of the heating tank. A rotating rod is rotatably installed inside the heating tank. The top end of the rotating rod is fixedly connected to the output shaft end of the driving motor one. A plurality of stirring blades are fixedly connected to the outer surface of the rotating rod. A plurality of heating sheets are installed on the inner wall of the heating tank.

[0008] Preferably, the molecular sieve dehydration component includes a discharge pipe and a feed pipe. Feed inlets three and discharge outlets three are respectively formed at the bottom left side and the top right side of the left part of a plurality of the adsorption chambers. The input ends of a plurality of the feed inlets three and the output ends of a plurality of the discharge outlets three are fixedly communicated with solenoid valves five. A plurality of the discharge outlets three are fixedly communicated with the discharge pipe through the solenoid valves five. A plurality of the feed inlets three are fixedly communicated with the feed pipe through the solenoid valves five. And a plurality of on-line moisture analyzers are arranged on the discharge pipe.

[0009] Preferably, the adsorption and regeneration component includes a nitrogen gas outlet pipe and a nitrogen gas inlet pipe. Nitrogen gas inlet ports and nitrogen gas outlet ports are respectively formed at the top left side and the bottom right side of the left part of a plurality of the adsorption chambers. The input ends of a plurality of the nitrogen gas inlet ports and the output ends of a plurality of the nitrogen gas outlet ports are fixedly communicated with solenoid valves four. A plurality of the nitrogen gas inlet ports are fixedly communicated with the nitrogen gas inlet pipe through the solenoid valves four. A plurality of the nitrogen gas outlet ports are fixedly communicated with the nitrogen gas outlet pipe through the solenoid valves four. A steam heating mechanism is also installed inside the adsorption tower.

[0010] Preferably, the steam heating mechanism includes a steam inlet pipe and a steam outlet pipe. Heating coils are arranged at the bottom of a plurality of the adsorption chambers. The input ends and the output ends of a plurality of the heating coils are fixedly communicated with solenoid valves one. The input ends of a plurality of the heating coils are fixedly communicated with the steam inlet pipe. The output ends of a plurality of the heating coils are fixedly communicated with the steam outlet pipe.

[0011] Preferably, a feed inlet one is formed at the top of the raw material tank. A discharge outlet two is formed at the bottom left side of the raw material tank. The output end of the discharge outlet two is fixedly communicated with two groups of solenoid valves three through a pipeline. The output ends of two groups of the solenoid valves three are respectively fixedly communicated with two groups of feed inlets four through pipelines.

[0012] Preferably, the input end of the delivery pump 2 is fixedly connected to a tee through a pipeline, and the output ends of the two groups of discharge ports 4 are fixedly connected to the tee through pipelines. A feed port 2 is opened on the right top side of the heating tank, and the input end of the feed port 2 is fixedly connected to a connecting pipe, and the input end of the connecting pipe is fixedly connected to the output end of the delivery pump 2.

[0013] Preferably, a discharge port 1 is opened on the left bottom side of the heating tank, the output end of the discharge port 1 is fixedly connected to a solenoid valve 2, the input end of the delivery pump 1 is fixedly connected to the output end of the solenoid valve 2, and the output end of the delivery pump 1 is fixedly connected to the input end of the feed pipe.

[0014] Preferably, a plurality of sealing covers are provided on the rear side of the adsorption tower.

[0015] The present invention provides a chlorobenzene liquid phase dehydration system. Compared with the prior art, it has the following beneficial effects:

[0016] 1. A chlorobenzene liquid phase dehydration system, wherein a molecular sieve dehydration component is installed inside an adsorption tower, wherein the molecular sieve dehydration component is provided with molecular sieves on the inner bottom sides of a plurality of adsorption bins, and a feed port three is opened on the left bottom sides of the plurality of adsorption bins, and is fixedly connected to a feed pipe through a solenoid valve five, and a discharge port three is opened on the right top sides of the plurality of adsorption bins, and is fixedly connected to a discharge pipe through a solenoid valve five, so that chlorobenzene is subjected to molecular sieve dehydration treatment in the plurality of adsorption bins, and the chlorobenzene feed and discharge in each group of adsorption bins are independently controlled, so that when a group of adsorption bins is shut down to replace the molecular sieve, the molecular sieve dehydration process is continued in other adsorption bins, thereby ensuring that the dehydration system operates continuously without stopping.

[0017] 2. A chlorobenzene liquid phase dehydration system is provided with a filter assembly inside the filter box. The filter assembly is provided with a filter cartridge and a filter plate, and double filtration treatment is performed on chlorobenzene containing solid impurities to improve purity.

[0018] 3. In this chlorobenzene liquid phase dehydration system, a stirring and heat-averaging component is installed inside the heating tank to evenly heat the filtered chlorobenzene to ensure that the temperature of the chlorobenzene in the heating tank is constant.

[0019] 4. A chlorobenzene liquid phase dehydration system is provided with an adsorption regeneration component installed inside the adsorption tower. When the adsorption regeneration component is used, the interior of several adsorption bins is heated by a steam heating mechanism, and the interior of several adsorption bins is purged with nitrogen, so that the moisture and impurities adsorbed by the molecular sieve are desorbed from the pores and taken away by the nitrogen, thereby regenerating the adsorption performance of the molecular sieve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front view structure of the main body of the present invention;

[0021] Figure 2 It is a left-side structural schematic diagram of the main body of the present invention;

[0022] Figure 3 It is a schematic diagram of the rear view structure of the main body of the present invention;

[0023] Figure 4 This is a schematic diagram of the connection structure between the raw material tank and the heating tank of the present invention;

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the adsorption tower of the present invention;

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the filter box of the present invention.

[0026] In the figure: 1, raw material tank; 2, heating tank; 3, adsorption tower; 4, delivery pump 1; 5, delivery pump 2; 6, filter box; 7, discharge pipe; 8, steam inlet pipe; 9, steam outlet pipe; 10, solenoid valve 1; 11, feed port 1; 12, collection port; 13, nitrogen outlet pipe; 14, nitrogen inlet pipe; 15, feed pipe; 16, sealing cover; 17, feed port 2; 18, drive motor 1; 19, rotating rod; 20, stirring blade; 21, heating plate; 2 2. Discharge port one; 23. Solenoid valve two; 24. Three-way pipe; 25. Discharge port two; 26. Solenoid valve three; 27. Connecting pipe; 28. Adsorption bin; 29. ​​Heating coil; 30. Nitrogen inlet; 31. Nitrogen outlet; 32. Molecular sieve; 33. Discharge port three; 34. Feed port three; 35. Solenoid valve four; 36. Solenoid valve five; 37. Online moisture analyzer; 38. Filter cartridge; 39. Filter plate; 40. Feed port four; 41. Discharge port four. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-6The present invention provides a technical solution: a chlorobenzene liquid phase dehydration system, comprising a raw material tank 1, a heating tank 2 and an adsorption tower 3, wherein the raw material tank 1 is arranged on the right side of the heating tank 2, the adsorption tower 3 is arranged on the rear side of the heating tank 2, two groups of filter boxes 6 are arranged between the raw material tank 1 and the heating tank 2, a delivery pump 2 5 is arranged between the heating tank 2 and the filter box 6, a delivery pump 1 4 is arranged between the heating tank 2 and the adsorption tower 3, a plurality of adsorption bins 28 are provided inside the adsorption tower 3, a molecular sieve 32 is arranged on the inner bottom side of the plurality of adsorption bins 28, a filter assembly is installed inside the filter box 6, a stirring and heat equalizing assembly is installed inside the heating tank 2, a molecular sieve dehydration assembly is installed inside the adsorption tower 3, and an adsorption regeneration assembly is also installed inside the adsorption tower 3.

[0029] The chlorobenzene liquid phase dehydration system stores crude chlorobenzene in a raw material tank 1. Since crude chlorobenzene contains some fixed impurities, it is filtered through two groups of filter boxes 6. The filtered chlorobenzene is transported to a heating tank 2 through a delivery pump 5 for uniform heating to reduce the viscosity of chlorobenzene and improve the adsorption efficiency. The heated chlorobenzene is transported to an adsorption tower 3 through a delivery pump 4 for dehydration to obtain dehydrated chlorobenzene. After the adsorption tower 3 runs for a period of time, the molecular sieve 32 is adsorbed and regenerated through an adsorption regeneration component.

[0030] The filter assembly includes a filter cartridge 38 and a filter plate 39. The filter cartridge 38 is arranged on the internal top side of the filter box 6, and the filter plate 39 is arranged on the internal bottom side of the filter box 6. A feed port 40 is provided on the side close to each other of the two groups of filter boxes 6. The feed port 40 is connected to the filter cartridge 38. A discharge port 41 is provided on the left bottom of the filter box 6. A collection port 12 is provided on the right side of the filter box 6. The bottom side of the collection port 12 is flush with the right bottom side of the filter plate 39.

[0031] When the filter assembly is in use, crude chlorobenzene enters the filter cartridge 38 from the feed port 40 for preliminary filtering treatment, and the filtered chlorobenzene is filtered for a second time through the filter plate 39, thereby removing solid impurities in the chlorobenzene. The chlorobenzene after double filtration is discharged from the discharge port 41, and the impurities in the filter cartridge 38 can be directly pulled out for unloading, and the impurities on the filter plate 39 are discharged from the collection port 12.

[0032] The stirring and heat-averaging component includes a driving motor 18, which is fixedly installed on the top of the heating tank 2. A rotating rod 19 is rotatably installed inside the heating tank 2. The top end of the rotating rod 19 is fixedly connected to the output shaft end of the driving motor 18. A plurality of stirring blades 20 are fixedly connected to the outer surface of the rotating rod 19. A plurality of heating plates 21 are installed on the inner wall of the heating tank 2.

[0033] When the stirring and heat-averaging assembly is in use, the chlorobenzene inside the heating tank 2 is heated by a plurality of heating plates 21, and a driving motor 18 is started. The driving motor 18 rotates the rotating rod 19, and a plurality of stirring blades 20 fixedly connected to the rotating rod 19 slowly stir the chlorobenzene solution for uniform heating.

[0034] The molecular sieve dehydration assembly includes a discharge pipe 7 and a feed pipe 15. A feed port 34 and a discharge port 33 are respectively provided on the left bottom side and the right top side of the plurality of adsorption bins 28. The input ends of the plurality of feed ports 34 and the output ends of the plurality of discharge ports 33 are fixedly connected with an electromagnetic valve 5 36. The plurality of discharge ports 33 are fixedly connected with the discharge pipe 7 through the electromagnetic valve 5 36. The plurality of feed ports 34 are fixedly connected with the feed pipe 15 through the electromagnetic valve 5 36, and a plurality of online moisture analyzers 37 are arranged on the discharge pipe 7.

[0035] When the molecular sieve dehydration component is in use, chlorobenzene is transported to a plurality of feed ports 34 through the feed pipe 15, and then enters the interior of a plurality of adsorption bins 28, and the chlorobenzene inside the adsorption bins 28 is adsorbed by the molecular sieve 32 to remove the moisture inside the chlorobenzene, and is discharged from a plurality of discharge ports 33 to enter the discharge pipe 7, and the moisture content of each group of discharge ports 33 is measured by an online moisture analyzer 37, and the plurality of feed ports 34 and the plurality of discharge ports 33 are independently controlled by a plurality of solenoid valves 5 36, so that when a group of adsorption bins 28 is shut down to replace the molecular sieve 32, the molecular sieve 32 is still dehydrated in other adsorption bins 28, thereby ensuring that the chlorobenzene dehydration system operates continuously without stopping.

[0036] The adsorption regeneration component includes a nitrogen outlet pipe 13 and a nitrogen inlet pipe 14. A nitrogen inlet 30 and a nitrogen outlet 31 are respectively provided on the left top side and the right bottom side of the plurality of adsorption bins 28. The input ends of the plurality of nitrogen inlets 30 and the output ends of the plurality of nitrogen outlets 31 are fixedly connected with electromagnetic valves 4 35. The plurality of nitrogen inlets 30 are fixedly connected with the nitrogen inlet pipe 14 through the electromagnetic valves 4 35. The plurality of nitrogen outlets 31 are fixedly connected with the nitrogen outlet pipe 13 through the electromagnetic valves 4 35. A steam heating mechanism is also installed inside the adsorption tower 3.

[0037] The steam heating mechanism includes a steam inlet pipe 8 and a steam outlet pipe 9. A heating coil 29 is provided at the bottom of each adsorption bin 28. The input and output ends of each heating coil 29 are fixedly connected to an electromagnetic valve 10. The input ends of each heating coil 29 are fixedly connected to the steam inlet pipe 8, and the output ends of each heating coil 29 are fixedly connected to the steam outlet pipe 9.

[0038] When the adsorption regeneration component is in use, steam is supplied to and discharged from the plurality of heating coils 29 through the steam inlet pipe 8 and the steam outlet pipe 9, thereby heating the interior of the plurality of adsorption bins 28, destroying the binding force between the adsorbate (such as moisture) and the molecular sieve 32, and desorbing the adsorbate from the surface or pores of the molecular sieve 32, thereby restoring the adsorption capacity of the molecular sieve 32, and supplying nitrogen to the plurality of nitrogen inlets 30 through the nitrogen inlet pipe 14, and discharging nitrogen to the plurality of nitrogen outlets 31 through the nitrogen outlet pipe 13, thereby realizing the supply and discharge of nitrogen to the plurality of adsorption bins 28, and continuously purging the molecular sieve 32 with nitrogen, accelerating the desorption of the adsorbate while taking the adsorbate away.

[0039] A feed port 11 is provided at the top of the raw material tank 1, and a discharge port 25 is provided at the bottom left side of the raw material tank 1. The output end of the discharge port 25 is fixedly connected to two groups of solenoid valves 3 26 through a pipeline. The output ends of the two groups of solenoid valves 3 26 are fixedly connected to the two groups of feed ports 4 40 through pipelines, respectively. Crude chlorobenzene is added to the raw material tank 1 through the feed port 11, and the two groups of pipelines connected to the discharge port 25 are switched on and off by the two groups of solenoid valves 3 26. The chlorobenzene in the two groups of pipelines enters the two groups of filter boxes 6 through the two groups of feed ports 40.

[0040] The input end of the delivery pump 25 is fixedly connected to the three-way pipe 24 through a pipeline, and the output ends of the two groups of discharge ports 41 are fixedly connected to the three-way pipe 24 through pipelines. A feed port 217 is opened on the right top side of the heating tank 2, and the input end of the feed port 17 is fixedly connected to a connecting pipe 27. The input end of the connecting pipe 27 is fixedly connected to the output end of the delivery pump 25. The filtered chlorobenzene in the two groups of filter boxes 6 enters the three-way pipe 24 through the delivery pump 25 through the two groups of pipelines, and then enters the delivery pump 25, and enters the feed port 17 on the heating tank 2 through the connecting pipe 27.

[0041] A discharge port 22 is provided on the left bottom side of the heating tank 2, and the output end of the discharge port 22 is fixedly connected to a solenoid valve 23, the input end of a delivery pump 4 is fixedly connected to the output end of the solenoid valve 23, and the output end of the delivery pump 4 is fixedly connected to the input end of a feed pipe 15. The chlorobenzene heated inside the heating tank 2 is delivered from the discharge port 22 on the heating tank 2 to the delivery pump 4 through the delivery pump 4, and then enters the adsorption tower 3 through the feed pipe 15.

[0042] A plurality of sealing covers 16 are disposed on the rear side of the adsorption tower 3 , and the molecular sieves 32 are added and replaced in the plurality of adsorption bins 28 through the plurality of sealing covers 16 .

[0043] Working principle: The chlorobenzene liquid phase dehydration system adds crude chlorobenzene to the raw material tank 1 through the feed port 11, and stores the crude chlorobenzene through the raw material tank 1. Since the crude chlorobenzene contains some fixed impurities, the delivery pump 25 is started, and the two sets of pipes connected to the discharge port 25 are switched on and off through two sets of solenoid valves 3 26. The chlorobenzene in the two pipes enters the two sets of filter boxes 6 through the two sets of feed ports 4 40. After the crude chlorobenzene enters from the feed port 4 40, it is initially filtered inside the filter cylinder 38. The filtered chlorobenzene is filtered for the second time through the filter plate 39, thereby removing the solid impurities in the chlorobenzene. The chlorobenzene after double filtration is discharged from the discharge port 4 41 The impurities in the filter cartridge 38 can be directly pulled out for unloading, and the impurities on the filter plate 39 are discharged from the collecting port 12. The filtered chlorobenzene in the two groups of filter boxes 6 then enters the three-way pipe 24 through the two groups of pipes, thereby entering the delivery pump 25, and enters the feed port 21 on the heating tank 2 through the connecting pipe 27, thereby entering the heating tank 2, and the chlorobenzene inside the heating tank 2 is heated by a plurality of heating plates 21, and the driving motor 18 is started, and the rotating rod 19 is rotated by the driving motor 18, and the chlorobenzene solution is slowly stirred by a plurality of stirring blades 20 fixedly connected to the rotating rod 19 for uniform heating, thereby reducing the viscosity of chlorobenzene and improving the adsorption efficiency;

[0044] The heated chlorobenzene is transported from the discharge port 22 on the heating tank 2 to the transport pump 4 through the delivery pump 4, and then transported through the feed pipe 15. The feed pipe 15 transports the chlorobenzene to the plurality of feed ports 34, thereby entering the interior of the plurality of adsorption bins 28, and the chlorobenzene in the adsorption bins 28 is adsorbed by the molecular sieve 32 to remove the moisture inside the chlorobenzene, and then discharged from the plurality of discharge ports 33 to enter the discharge pipe 7. The moisture content of each group of discharge ports 33 is measured by an online moisture analyzer 37, and the plurality of feed ports 34 and the plurality of discharge ports 33 are independently controlled by the plurality of solenoid valves 5 36, so that when a group of adsorption bins 28 is shut down to replace the molecular sieve 32, the molecular sieve 32 in other adsorption bins 28 continues to be dehydrated, thereby ensuring The chlorobenzene dehydration system operates continuously without stopping, thereby obtaining dehydrated chlorobenzene. When the adsorption tower 3 operates for a period of time, steam is supplied to and discharged from a plurality of heating coils 29 through a steam inlet pipe 8 and a steam outlet pipe 9, thereby heating the interior of a plurality of adsorption bins 28, destroying the binding force between the adsorbate (such as water) and the molecular sieve 32, so that the adsorbate is desorbed from the surface or pores of the molecular sieve 32, thereby restoring the adsorption capacity of the molecular sieve 32, and nitrogen is supplied to a plurality of nitrogen inlets 30 through a nitrogen inlet pipe 14, and nitrogen is discharged from a plurality of nitrogen outlets 31 through a nitrogen outlet pipe 13, thereby realizing the supply and discharge of nitrogen to a plurality of adsorption bins 28, and the molecular sieve 32 is continuously purged by nitrogen, which accelerates the desorption of the adsorbate and takes away the adsorbate, thereby realizing the regeneration of the adsorption capacity of the molecular sieve 32.

[0045] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chlorobenzene liquid phase dehydration system, comprising a raw material tank (1), a heating tank (2) and an adsorption tower (3), characterized in that: The raw material tank (1) is arranged on the right side of the heating tank (2), the adsorption tower (3) is arranged on the rear side of the heating tank (2), two groups of filter boxes (6) are arranged between the raw material tank (1) and the heating tank (2), a second delivery pump (5) is arranged between the heating tank (2) and the filter box (6), a first delivery pump (4) is arranged between the heating tank (2) and the adsorption tower (3), a plurality of adsorption bins (28) are provided inside the adsorption tower (3), molecular sieves (32) are arranged on the bottom sides of the inner parts of the plurality of adsorption bins (28), a filter assembly is installed inside the filter box (6), a stirring and heat equalizing assembly is installed inside the heating tank (2), a molecular sieve dehydration assembly is installed inside the adsorption tower (3), and an adsorption regeneration assembly is also installed inside the adsorption tower (3).

2. A chlorobenzene liquid phase dehydration system according to claim 1, characterized in that: The filter assembly comprises a filter cartridge (38) and a filter plate (39), wherein the filter cartridge (38) is arranged on the top side of the interior of the filter box (6), and the filter plate (39) is arranged on the bottom side of the interior of the filter box (6). A feed port four (40) is provided on the sides of the two groups of filter boxes (6) close to each other, and the feed port four (40) is connected to the filter cartridge (38). A discharge port four (41) is provided on the bottom left side of the filter box (6), and a collection port (12) is provided on the right side of the filter box (6), and the bottom side of the collection port (12) is flush with the bottom side of the right part of the filter plate (39).

3. A chlorobenzene liquid phase dehydration system according to claim 1, characterized in that: The stirring and heat-averaging component comprises a driving motor (18), wherein the driving motor (18) is fixedly mounted on the top of a heating tank (2), a rotating rod (19) is rotatably mounted inside the heating tank (2), the top end of the rotating rod (19) is fixedly connected to the output shaft end of the driving motor (18), a plurality of stirring blades (20) are fixedly connected to the outer surface of the rotating rod (19), and a plurality of heating plates (21) are mounted on the inner wall of the heating tank (2).

4. A chlorobenzene liquid phase dehydration system according to claim 1, characterized in that: The molecular sieve dehydration assembly comprises a discharge pipe (7) and a feed pipe (15); a feed port three (34) and a discharge port three (33) are respectively provided on the left bottom side and the right top side of the adsorption bin (28); the input ends of the feed ports three (34) and the output ends of the discharge ports three (33) are fixedly connected to a solenoid valve five (36); the discharge ports three (33) are fixedly connected to the discharge pipe (7) via the solenoid valve five (36); the feed ports three (34) are fixedly connected to the feed pipe (15) via the solenoid valve five (36); and the discharge pipe (7) is provided with a plurality of online moisture analyzers (37).

5. A chlorobenzene liquid phase dehydration system according to claim 1, characterized in that: The adsorption regeneration component comprises a nitrogen outlet pipe (13) and a nitrogen inlet pipe (14); a nitrogen inlet (30) and a nitrogen outlet (31) are respectively provided on the left top side and the right bottom side of the plurality of adsorption bins (28); the input ends of the plurality of nitrogen inlets (30) and the output ends of the plurality of nitrogen outlets (31) are fixedly connected to a solenoid valve four (35); the plurality of nitrogen inlets (30) are fixedly connected to the nitrogen inlet pipe (14) via the solenoid valve four (35); the plurality of nitrogen outlets (31) are fixedly connected to the nitrogen outlet pipe (13) via the solenoid valve four (35); and a steam heating mechanism is also installed inside the adsorption tower (3).

6. A chlorobenzene liquid phase dehydration system according to claim 5, characterized in that: The steam heating mechanism comprises a steam inlet pipe (8) and a steam outlet pipe (9); a heating coil (29) is arranged at the bottom of the plurality of adsorption bins (28); the input end and the output end of the plurality of heating coils (29) are fixedly connected to a solenoid valve 1 (10); the input end of the plurality of heating coils (29) is fixedly connected to the steam inlet pipe (8); and the output end of the plurality of heating coils (29) is fixedly connected to the steam outlet pipe (9).

7. A chlorobenzene liquid phase dehydration system according to claim 2, characterized in that: A feed port 1 (11) is provided on the top of the raw material tank (1), and a discharge port 2 (25) is provided on the left bottom of the raw material tank (1). The output end of the discharge port 2 (25) is fixedly connected to two groups of solenoid valves 3 (26) through a pipeline, and the output ends of the two groups of solenoid valves 3 (26) are fixedly connected to the two groups of feed ports 4 (40) through pipelines.

8. A chlorobenzene liquid phase dehydration system according to claim 2, characterized in that: The input end of the second delivery pump (5) is fixedly connected to a three-way pipe (24) through a pipeline, and the output ends of the two groups of the fourth discharge ports (41) are fixedly connected to the three-way pipe (24) through pipelines. A second feed port (17) is provided on the top right side of the heating tank (2), and the input end of the second feed port (17) is fixedly connected to a connecting pipe (27), and the input end of the connecting pipe (27) is fixedly connected to the output end of the second delivery pump (5).

9. A chlorobenzene liquid phase dehydration system according to claim 1, characterized in that: A discharge port 1 (22) is provided on the bottom left side of the heating tank (2), and the output end of the discharge port 1 (22) is fixedly connected to a solenoid valve 2 (23), the input end of the delivery pump 1 (4) is fixedly connected to the output end of the solenoid valve 2 (23), and the output end of the delivery pump 1 (4) is fixedly connected to the input end of the feed pipe (15).

10. A chlorobenzene liquid phase dehydration system according to claim 1, characterized in that: A plurality of sealing covers (16) are arranged on the rear side of the adsorption tower (3).

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