An MTBE deep desulfurization device

Abstract

The present invention relates to the technical field of petrochemical engineering, and specifically to a deep desulfurization device for MTBE. Regarding the problem that there is a part of high-concentration sulfide waste liquid remaining in the rectification tower during the MTBE rectification process. It includes: a desulfurization tank, a fixed shell is fixedly connected to the desulfurization tank, and a reaction tank is arranged inside the fixed shell; a plurality of flow guiding plates, all arranged inside the reaction tank, a guiding shell is arranged on the flow guiding plate, the plurality of flow guiding plates are distributed in a staggered manner, a fixing plate is arranged inside the flow guiding plate, the fixing plate is rotatably connected with a rotating shell, and the rotating shell is used for temporarily storing part of the MTBE stock solution; an exhaust pipe, arranged at the upper part of the reaction tank. Through the rotation of the rotating shell, the high-concentration sulfide waste liquid accumulated in the rotating shell is discharged from the lower part of the device, reducing the possibility of high-concentration sulfide waste liquid accumulating in the device and weakening the influence of the high-concentration sulfide waste liquid on the purification efficiency of the MTBE stock solution.

Description

Technical Field

[0001] The present invention relates to the technical field of petrochemical engineering, and particularly to a deep desulfurization device for MTBE. Background Art

[0002] MTBE (methyl tert-butyl ether) is a commonly used gasoline additive. MTBE is mainly prepared by the reaction of isobutene and methanol under the action of an acidic catalyst. Since there are a small amount of sulfur impurities in isobutene and methanol, sulfides will remain in the final product during the production process of MTBE. If this final product is directly used, it will pose a potential threat to the environment and human health. Therefore, deep desulfurization treatment of MTBE is required. After the existing MTBE deep desulfurization device roughly removes sulfides by methods such as catalytic hydrogenation, adsorption, or oxidation, MTBE still needs to be further purified through a distillation column.

[0003] During the operation of the distillation column, the MTBE stock solution is first injected into the column. The distillation column vaporizes MTBE by stable heating, and the sulfide solution is separated due to the difference in boiling points. The gaseous MTBE rises to the condensation zone and cools into a liquid, while the waste liquid containing high-concentration sulfides remains at the bottom of the column. In order to extend the residence time of the MTBE stock solution in the column, the existing distillation column is designed with an S-shaped guiding path to guide the flow of the MTBE stock solution. However, although this design helps to increase the separation efficiency of MTBE, it also causes some high-concentration sulfide waste liquid to remain in the distillation column. The accumulated sulfide waste liquid will mix into the distilled MTBE vapor, affecting the purity of the final product. At the same time, the high-concentration sulfide waste liquid has strong corrosiveness, which will accelerate the aging and damage of the distillation column. Summary of the Invention

[0004] Aiming at the problem that there is some high-concentration sulfide waste liquid remaining in the distillation column during the MTBE distillation process, the present invention provides a deep desulfurization device for MTBE.

[0005] The technical implementation solution of the present invention is as follows: An MTBE deep desulfurization device, comprising: a desulfurization tank, a fixed shell is fixedly connected to the desulfurization tank, a reaction tank is arranged inside the fixed shell, a heating plate is arranged between the fixed shell and the reaction tank, the reaction tank is communicated with a feeding pipe, the feeding pipe is communicated with the desulfurization tank, and the lower part of the reaction tank is communicated with a recovery device; a plurality of flow guiding plates, all arranged inside the reaction tank, a guiding shell is arranged on the flow guiding plate, the plurality of flow guiding plates are arranged in a staggered manner, a fixing plate is arranged inside the flow guiding plate, the fixing plate is rotatably connected with a rotating shell, and the rotating shell is used for temporarily storing part of the MTBE stock solution; an exhaust pipe, arranged at the upper part of the reaction tank, for recovering gaseous MTBE, a guiding mechanism is arranged on the rotating shell, and the guiding mechanism is used for controlling the MTBE stock solution to flow along a specific path; a tilting mechanism, arranged inside the flow guiding plate, for controlling the deflection of the plurality of rotating shells.

[0006] As a preference of the present invention, the guiding mechanism comprises: a rotating plate, rotatably connected to the rotating shell, the rotating plate is slidably connected to the guiding shell, the flow guiding plate is provided with a liquid discharge hole, a sliding frame is slidably connected inside the liquid discharge hole of the flow guiding plate, a first tension spring is fixedly connected between the sliding frame and the flow guiding plate, and the sliding frame is used for blocking the liquid discharge hole of the flow guiding plate; a gas guiding component, arranged on the rotating shell, for guiding gaseous MTBE; an opening component, arranged on the rotating shell, for actively moving the sliding frame.

[0007] As a preference of the present invention, the gas guiding component comprises: a plurality of fixed pipes, fixedly connected to the rotating shell, the fixed pipes are communicated with two connecting pipes; a plurality of gas guiding pipes, fixedly connected to the flow guiding plate, the connecting pipes are communicated with the adjacent gas guiding pipes, and a plurality of through holes are arranged on the gas guiding pipes.

[0008] As a preference of the present invention, the plurality of gas guiding pipes are located in the same vertical plane, for enabling gaseous MTBE to rise and be discharged from the device.

[0009] As a preference of the present invention, the opening component comprises: a fixed dial rod, fixedly connected to the rotating shell; a connecting bent rod, fixedly connected to the sliding frame, and the fixed dial rod is used for pushing the connecting bent rod.

[0010] As a preferred embodiment of the present invention, the dumping mechanism includes: a connecting rod, which penetrates and is slidably connected to the guide plate, a sliding support plate is slidably connected in the guide plate, a plurality of connecting plates are arranged on the connecting rod, the number of connecting plates on the connecting rod is the same as the number of the guide plates, a fixed column is arranged on the sliding support plate, the fixed column of the sliding support plate is used to drive the rotating shell to rotate, a blind hole is arranged on the sliding support plate, a limit pin is slidably connected to the guide plate, the limit pin limits the sliding support plate through the blind hole, a first spring is arranged between the limit pin and the guide plate, a second tension spring is arranged between the connecting plate of the connecting rod and the adjacent sliding support plate, and an electric push rod is arranged on the reaction tank, and the telescopic end of the electric push rod is fixedly connected to the connecting rod.

[0011] As a preferred embodiment of the present invention, the spacing between the multiple connecting plates on the connecting rod and the adjacent guide plates gradually increases from bottom to top, so as to control the rotation sequence of the multiple rotating shells.

[0012] As a preferred embodiment of the present invention, the dumping mechanism further comprises: a condensation plate, which is arranged in the reaction tank, and a through hole is arranged in the middle of the condensation plate for condensing and refluxing part of the gaseous MTBE.

[0013] As a preferred embodiment of the present invention, the cross-sectional shape of the condensation plate is W-shaped, which is used to accelerate the speed at which the liquid MTBE gathers and falls.

[0014] As a preferred embodiment of the present invention, it also includes: an air storage mechanism, which is arranged in the reaction tank, and the air storage mechanism is used to suppress the evaporation of liquid sulfide. The air storage mechanism includes: a plurality of baffles, which are all slidably connected to the reaction tank, and the plurality of baffles and the plurality of guide plates are staggered. The baffles are slidably connected to the guide shell, and a second spring is fixed between the baffle and the adjacent guide plate. The baffle is slidably connected to the air guide pipe, and a plurality of sealing rings are fixed on the baffle, and the sealing rings are used to seal the through holes of the adjacent air guide pipes.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The present invention causes the high-concentration sulfide waste liquid accumulated in the rotating shell to be discharged from the lower part of the device through the rotation of the rotating shell, thereby reducing the possibility of accumulation of high-concentration sulfide waste liquid in the device and weakening the influence of high-concentration sulfide waste liquid on the purification efficiency of MTBE raw liquid.

[0016] 2. The present invention blocks the drainage hole of the guide plate by the sliding frame in the guide mechanism, so that the MTBE raw liquid and the gaseous MTBE flow in one direction along their respective paths, reducing the possibility of the gaseous MTBE re-integrating into the raw liquid and improving the efficiency of MTBE purification of the device.

[0017] 3. The present invention uses the connecting rod in the mobile pouring mechanism to sequentially pour the accumulated waste liquid from top to bottom by multiple rotating shells, achieving the purpose of removing the residual liquid in the reaction tank and increasing the convenience of cleaning the device.

[0018] 4. The present invention temporarily blocks the gaseous MTBE through the baffle in the gas storage mechanism, saturating the sulfide evaporates on the surface of the stock solution, achieving the purpose of inhibiting the evaporation of sulfides in the stock solution and improving the purity of MTBE purified by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 is a three-dimensional structural diagram of the internal structure of the reaction tank of the present invention;

[0021] Figure 3 is a three-dimensional structural diagram of the parts at the deflector and the guiding shell of the present invention;

[0022] Figure 4 is a three-dimensional structural diagram of the parts at the fixing plate and the rotating shell of the present invention;

[0023] Figure 5 is a three-dimensional structural diagram of the parts at the fixed pipe and the connecting pipe of the present invention;

[0024] Figure 6 is a three-dimensional structural diagram of the parts at the connecting rod and the sliding support plate of the present invention;

[0025] Figure 7 is a three-dimensional structural diagram of the parts at the connecting rod and the limit pin of the present invention;

[0026] Figure 8 is a cross-sectional view of the parts at the baffle and the sealing ring of the present invention.

[0027] The reference numerals of the various components in the drawings are as follows: 1 - desulfurization tank, 2 - fixed shell, 3 - reaction tank, 4 - feeding pipe, 5 - recovery device, 6 - deflector, 7 - guiding shell, 8 - fixing plate, 9 - rotating shell, 10 - exhaust pipe, 21 - rotating plate, 22 - sliding frame, 31 - fixed pipe, 32 - connecting pipe, 33 - air guide pipe, 51 - fixed lever, 52 - connecting bent rod, 61 - connecting rod, 62 - sliding support plate, 63 - limit pin, 64 - electric push rod, 81 - condensation plate, 71 - baffle, 72 - sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following is combined with the attached Figure 1 - attached Figure 8, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Embodiment 1: During the process of deep desulfurization of MTBE by an existing rectifying column, the MTBE stock solution in the rectifying column is usually guided along an S-shaped path, resulting in the retention of some high-concentration sulfide waste liquid in the rectifying column, and some sulfide waste liquid will mix into the MTBE being distilled, resulting in incomplete separation of MTBE and affecting the purity of the final MTBE product.

[0030] An MTBE deep desulfurization device, please refer to the attached Figure 1 - attached Figure 6 As shown in the figure, it includes: a desulfurization tank 1, a fixed shell 2 is fixedly connected to the desulfurization tank 1, a reaction tank 3 is arranged in the fixed shell 2, a heating plate is arranged between the fixed shell 2 and the reaction tank 3, the reaction tank 3 is communicated with a feeding pipe 4, the feeding pipe 4 is communicated with the desulfurization tank 1, and the lower part of the reaction tank 3 is communicated with a recovery device 5; a plurality of guide plates 6 are all arranged in the reaction tank 3, a guide shell 7 is arranged on the guide plate 6, the plurality of guide plates 6 are arranged in a staggered manner, a fixing plate 8 is arranged in the guide plate 6, the fixing plate 8 is rotatably connected with a rotating shell 9, and the rotating shell 9 is used for temporarily storing part of the MTBE stock solution; an exhaust pipe 10 is arranged at the upper part of the reaction tank 3 for recovering gaseous MTBE, a guiding mechanism is arranged on the rotating shell 9, and the guiding mechanism is used for controlling the MTBE stock solution to flow along a specific path; a tilting mechanism is arranged in the guide plate 6 for controlling the deflection of a plurality of rotating shells 9. The guiding mechanism includes: a rotating plate 21 rotatably connected to the rotating shell 9, the rotating plate 21 is slidably connected to the guide shell 7, the guide plate 6 is provided with a liquid discharge hole, a sliding frame 22 is slidably connected in the liquid discharge hole of the guide plate 6, a first tension spring is fixedly connected between the sliding frame 22 and the guide plate 6, and the sliding frame 22 is used for blocking the liquid discharge hole of the guide plate 6; a gas guiding component is arranged on the rotating shell 9 for guiding gaseous MTBE; an opening component is arranged on the rotating shell 9 for actively moving the sliding frame 22. The gas guiding component includes: a plurality of fixed pipes 31 fixedly connected to the rotating shell 9, the fixed pipes 31 are communicated with two connecting pipes 32; a plurality of gas guide pipes 33 are fixedly connected to the guide plate 6, the connecting pipes 32 are communicated with the adjacent gas guide pipes 33, a plurality of through holes are arranged on the gas guide pipes 33, and the plurality of gas guide pipes 33 are located in the same vertical plane for enabling gaseous MTBE to rise and be discharged from the device.

[0031] In the above solution, it aims to solve the problem that during the rectification of MTBE in the rectification column, some high-concentration sulfide waste liquid will remain in the rectification column; a control panel is provided on the desulfurization tank 1, a condensation device is provided on the exhaust pipe 10, and the condensation device, the heating plate and the tipping mechanism are all electrically connected to the control panel. The guiding shell 7 is aligned with the drain hole of the upper deflector 6. After the MTBE stock solution entering the reaction tank 3 accumulates in the first rotating shell 9, it enters the next rotating shell 9 through the drain hole of the deflector 6 and the lower guiding shell 7. The connecting pipe 32 is a flexible hose and can be telescoped. The sliding frame 22 is used to prevent gaseous MTBE from moving upward through the drain hole of the deflector 6. The gaseous MTBE only moves upward through the through hole of the air guide pipe 33, the fixed pipe 31 and the connecting pipe 32 and is condensed into a liquid state through the exhaust pipe 10 and then discharged from the device. The fixing plate 8 is used to keep the rotating shell 9 in an inclined state and accumulate part of the MTBE stock solution, extend the heating and distillation time of the MTBE stock solution in the reaction tank 3, and increase the rectification efficiency of MTBE.

[0032] Working process: When using this device for deep desulfurization of MTBE, the operator starts the device. The control panel starts the heating plate between the fixed shell 2 and the reaction tank 3 and the condensation device at the exhaust pipe 10 to heat the reaction tank 3 at a constant temperature (the heating temperature only vaporizes the MTBE in the stock solution). The desulfurization tank 1 injects the roughly desulfurized MTBE stock solution (subsequently replaced by the stock solution) into the reaction tank 3 through the feeding pipe 4. The feeding pipe 4 first injects the stock solution into the uppermost rotating shell 9. When a rotating shell 9 is filled with the stock solution, the stock solution enters the drain hole of the deflector 6. The sliding frame 22 moves downward under the action of the weight of the stock solution. The sliding frame 22 stretches the first spring connected to it, and the drain hole of the deflector 6 opens. The stock solution enters the next rotating shell 9 through the drain hole of the deflector 6 and the lower guiding shell 7. As the feeding pipe 4 continuously injects the stock solution into the reaction tank 3, the stock solution flows downward through multiple rotating shells 9. Since the heating plate between the fixed shell 2 and the reaction tank 3 heats the stock solution in multiple rotating shells 9, as the stock solution flows downward, the sulfur content of the stock solution in the lower rotating shell 9 is higher and the flow rate of the stock solution is smaller. Finally, the sulfide waste liquid flows to the lowermost side of the reaction tank 3. When the flow rate of the stock solution entering the drain hole of the deflector 6 becomes smaller, the sliding frame 22 resets under the pulling force of the connected first spring and blocks the drain hole of the deflector 6. At the same time, the recovery device 5 intermittently collects the sulfide waste liquid at the lowermost side of the reaction tank 3 and reheats it to vaporize part of the remaining MTBE and re-inject it between two adjacent deflectors 6 in the reaction tank 3. The gaseous MTBE evaporated from the stock solution accumulates between two adjacent deflectors 6. The gaseous MTBE flows upward through the through hole of the air guide pipe 33, the fixed pipe 31 and the connecting pipe 32, and finally the gaseous MTBE is liquefied by the condensation device of the exhaust pipe 10 and discharged from the device.

[0033] During the continuous evaporation of the stock solution in the rotating shell 9, the control panel activates the tilting mechanism, and multiple rotating shells 9 deflect upward in sequence from top to bottom. During the continuous distillation process in the rotating shell 9, some high-concentration sulfide waste liquid will gradually accumulate in the rotating shell 9. The residual waste liquid in the rotating shell 9 is poured into the drain holes of the flow guide plate 6. The rotating shell 9 rotates relative to the rotating plate 21, and the rotating plate 21 slides upward in the guide shell 7. The stock solution is guided by the rotating plate 21 and enters the rotating shell 9.

[0034] During the deflection of the rotating shell 9, the opening component releases the blockage of the drain holes of the flow guide plate 6 by the sliding frame 22 to prevent waste liquid from accumulating in the drain holes of the flow guide plate 6. Subsequently, the control panel controls the tilting mechanism to reset. The rotating shell 9 rotates and resets due to its own gravity and the gravity of the flowing stock solution. The opening component moves and resets. Through the sequential rotation of multiple rotating shells 9, all the waste liquid is drained to the bottom of the reaction tank 3 and discharged from the device, effectively reducing the possibility of high-concentration sulfide waste liquid remaining in the reaction tank 3 and ensuring the safety of the parts in the device. When the distillation of the stock solution in the device is completed, the control panel activates the tilting mechanism to remove the residual liquid in the reaction tank 3. The control panel closes the tilting mechanism, the heating plate, and the condensation device on the exhaust pipe 10. Finally, all the parts in the device return to their initial positions.

[0035] Please refer to the appendix Figure 4 - appendix Figure 6 As shown, the opening component includes: a fixed lever 51, fixedly connected to the rotating shell 9; a connecting bent lever 52, fixedly connected to the sliding frame 22. The fixed lever 51 is used to push the connecting bent lever 52.

[0036] In the above solution, it is intended to prevent the stock solution from remaining in the reaction tank 3 and accelerate the discharge of gaseous MTBE from the device under the condition that the flow of the stock solution and the flow of gaseous MTBE do not intersect. The sliding frame 22 is composed of a rectangular frame, two inclined plates, and a rectangular plate, blocking the entry of gaseous MTBE from the lower side into the drain holes of the flow guide plate 6. Through the rotation of the rotating shell 9, the fixed lever 51 and the connecting bent lever 52 actively move the sliding frame 22, and the sliding frame 22 releases the blockage of the drain holes of the flow guide plate 6, facilitating the transfer of the stock solution or residual waste liquid in the rotating shell 9 to the next rotating shell 9.

[0037] Working process: When the rotating shell 9 deflects upward, the rotating shell 9 drives the fixed lever 51 to rotate synchronously. The fixed lever 51 swings downward and pushes the sliding frame 22 to move downward through the connecting bent lever 52. The drain holes of the flow guide plate 6 are opened, and the stock solution flows downward from both sides of the sliding frame 22. When the rotating shell 9 swings and resets, the sliding frame 22 drives the connecting bent lever 52 to move upward and reset synchronously under the pulling force of the first spring connected to it.

[0038] Please refer to the appendix Figure 1 - appendix Figure 4 、appendix Figure 6and attached Figure 7 As shown, the dumping mechanism includes: a connecting rod 61, which penetrates and is slidably connected to the guide plate 6, a sliding support plate 62 is slidably connected in the guide plate 6, a plurality of connecting plates are arranged on the connecting rod 61, and the number of connecting plates on the connecting rod 61 is the same as the number of the guide plate 6, a fixing column is arranged on the sliding support plate 62, and the fixing column of the sliding support plate 62 is used to drive the rotating shell 9 to rotate, a blind hole is arranged on the sliding support plate 62, a limiting pin 63 is slidably connected to the guide plate 6, the limiting pin 63 limits the sliding support plate 62 through the blind hole, a first spring is arranged between the limiting pin 63 and the guide plate 6, and the connecting rod 6 A second tension spring is arranged between the connecting plate and the adjacent sliding support plate 62, an electric push rod 64 is arranged on the reaction tank 3, the telescopic end of the electric push rod 64 is fixedly connected to the connecting rod 61, and the spacing between the multiple connecting plates on the connecting rod 61 and the adjacent guide plates 6 gradually increases from bottom to top, which is used to control the rotation sequence of the multiple rotating shells 9. The dumping mechanism also includes: a condensation plate 81, which is arranged in the reaction tank 3, and a through hole is arranged in the middle of the condensation plate 81, which is used to condense and reflux part of the gaseous MTBE, and the cross-sectional shape of the condensation plate 81 is W-shaped, which is used to accelerate the speed of the liquid MTBE gathering and falling.

[0039] In the above scheme, the purpose is to control multiple rotating shells 9 to start deflecting from top to bottom in sequence; initially, the second tension spring between multiple sliding support plates 62 and the connecting rod 61 connecting plate gradually increases in tension from bottom to top, and the number of guide plates 6 in the reaction tank 3 can be changed according to actual conditions. The number of guide plates 6 in the device is set to six.

[0040] Workflow: When the device starts to work, the control panel activates the electric push rod 64. The telescopic end of the electric push rod 64 slowly contracts. The telescopic end of the electric push rod 64 drives the connecting rod 61 to move upward. The second tension spring between the connecting plate and the sliding support plate 62 on the connecting rod 61 is gradually stretched. When the pulling force of the second tension spring pulling the sliding support plate 62 is greater than the resistance of the limit pin 63 limiting the sliding support plate 62, the limit pin 63 moves out of the blind hole of the sliding support plate 62 and compresses the first spring connected to it. The sliding support plate 62 is released from the limit and drives the uppermost rotating shell 9 to swing upward through the fixed column. After that, as the connecting rod 61 moves upward, the six rotating shells 9 from top to bottom swing upward in sequence. Subsequently, the control panel controls the telescopic end of the electric push rod 64 to extend and reset. The connecting plate of the connecting rod 61 drives the sliding support plate 62 to move and reset through the second tension spring. The limit pin 63 is inserted back into the blind hole of the sliding support plate 62 under the elastic force of the first spring connected to it. At the same time, all the rotating shells 9 swing and reset under the action of the stock solution and their own gravity. The electric push rod 64 continuously repeats the above operations of slow contraction and extension, making the rotating shell 9 swing intermittently, reducing the possibility of high-concentration sulfide waste liquid staying in the rotating shell 9. Finally, the control panel turns off the electric push rod 64. Through the sequential swinging of multiple rotating shells 9, the purpose of cleaning the residue in the reaction tank 3 is achieved, improving the convenience of cleaning of this device.

[0041] Embodiment 2: On the basis of Embodiment 1, please refer to Att Figure 2 , Att Figure 3 and Att Figure 8 As shown, it further includes: an air storage mechanism, which is arranged in the reaction tank 3. The air storage mechanism is used to inhibit the evaporation of liquid sulfide. The air storage mechanism includes: a plurality of baffles 71, all of which are slidably connected to the reaction tank 3. The plurality of baffles 71 and the plurality of guide plates 6 are arranged in a staggered manner. The baffle 71 is slidably connected to the guide shell 7. A second spring is fixedly connected between the baffle 71 and the adjacent guide plate 6. The baffle 71 is slidably connected to the air duct 33. A plurality of sealing rings 72 are fixedly connected to the baffle 71. The sealing ring 72 is used to block the through holes of the adjacent air ducts 33.

[0042] In the above solution, it aims to solve the problem that during the evaporation of MTBE in the stock solution, there is also a slight evaporation of the sulfide solution, and the evaporation of the sulfide solution will be accelerated during the discharge of gaseous MTBE. Initially, the baffle 71 and the sealing ring 72 block the through holes of the air duct 33, and the sliding frame 22 blocks the liquid discharge holes of the guide plate 6. The gaseous MTBE evaporated from the stock solution in the rotating shell 9 only accumulates between the guide plate 6 and the upper baffle 71 above it.

[0043] Working process: When the stock solution is initially injected into the device, the gaseous MTBE evaporated from the stock solution in the rotating shell 9 gradually accumulates between the guide plate 6 and the baffle plate 71 on its upper side. When the gas pressure of the gaseous MTBE reaches a certain level, the baffle plate 71 is pushed upward and compresses the second spring connected thereto. The baffle plate 71 and the blocking ring 72 release the blockage of the through hole of the air guide pipe 33, so that the gaseous MTBE maintains a constant gas pressure and enters the exhaust pipe 10. By accumulating gas at the liquid surface of the stock solution, the evaporated sulfide in the accumulated gaseous MTBE is gradually saturated, thereby inhibiting the evaporation of sulfide in the stock solution and reducing the content of gaseous sulfide in the evaporated gaseous MTBE. , improve the purity of MTBE prepared by the device. Before the gaseous MTBE enters the exhaust pipe 10, it passes through the through hole of the condensation plate 81, and part of the gaseous MTBE is liquefied and falls back into the rotating shell 9, which is convenient for subsequent secondary distillation. When the device is completed, the control panel starts the electric push rod 64, and the connecting plate on the connecting rod 61 pushes the baffle 71 and the sealing ring 72 to move upward, so that the through hole of the air guide pipe 33 is opened, allowing the residual gaseous MTBE in the device to enter the exhaust pipe 10. Finally, the baffle 71 of the device moves and resets under the elastic force of the second spring connected to it. At this point, all parts in the device are moved and reset.

[0044] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the contents of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can understand and use the present invention well. As long as they do not deviate from the structure of the invention or exceed the protection scope of the present invention, they should fall within the protection scope of the present invention.

Claims

1. A MTBE deep desulfurization device, characterized in that it comprises: A desulfurization tank (1), wherein a fixed shell (2) is fixedly connected to the desulfurization tank (1), a reaction tank (3) is arranged in the fixed shell (2), a heating plate is arranged between the fixed shell (2) and the reaction tank (3), the reaction tank (3) is connected to an injection pipe (4), the injection pipe (4) is connected to the desulfurization tank (1), and the lower part of the reaction tank (3) is connected to a recovery device (5); A plurality of guide plates (6) are arranged in the reaction tank (3), the guide plates (6) are provided with drainage holes, a guide shell (7) is arranged on the guide plates (6), the plurality of guide plates (6) are arranged in a staggered manner, a fixed plate (8) is arranged in the guide plates (6), the fixed plate (8) is rotatably connected to a rotating shell (9), and the rotating shell (9) is used to temporarily store part of the MTBE raw liquid; An exhaust pipe (10) is arranged at the upper part of the reaction tank (3) and is used to recover gaseous MTBE. A guide mechanism is arranged on the rotating shell (9) and is used to control the MTBE raw liquid to flow along an S-shaped path. A dumping mechanism, disposed in the guide plate (6), and used to control the plurality of rotating shells (9) to deflect in a direction away from the drainage hole; The guiding mechanism comprises: a rotating plate (21) rotatably connected to the rotating shell (9), the rotating plate (21) being slidably connected to the guide shell (7), a sliding frame (22) being slidably connected in the drainage hole of the guide plate (6), a first tension spring being fixedly connected between the sliding frame (22) and the guide plate (6), and the sliding frame (22) being used to block the drainage hole of the guide plate (6); A gas guide assembly, arranged on the rotating shell (9), for guiding the gaseous MTBE so that the gaseous MTBE rises and is discharged from the device; An opening component is arranged on the rotating shell (9) and is used to actively move the sliding frame (22).

2. A MTBE deep desulfurization device according to claim 1, characterized in that: The air guide component comprises: A plurality of fixed pipes (31) fixedly connected to the rotating shell (9), wherein the fixed pipes (31) are connected to two connecting pipes (32); A plurality of air guide tubes (33) are fixedly connected to the guide plate (6); the connecting tube (32) is in communication with adjacent air guide tubes (33); and a plurality of through holes are provided on the air guide tubes (33).

3. A MTBE deep desulfurization device according to claim 2, characterized in that: The plurality of air guide pipes (33) are located on the same vertical plane and are used to allow the gaseous MTBE to rise and be discharged from the device.

4. A MTBE deep desulfurization device according to claim 2, characterized in that: The opening component comprises: A fixed lever (51) fixedly connected to the rotating shell (9); The connecting bent rod (52) is fixedly connected to the sliding frame (22), and the fixed lever (51) is used to push the connecting bent rod (52).

5. A MTBE deep desulfurization device according to claim 4, characterized in that: The dumping mechanism comprises: A connecting rod (61) penetrates and is slidably connected to the guide plate (6); a sliding support plate (62) is slidably connected inside the guide plate (6); a plurality of connecting plates are provided on the connecting rod (61); the number of connecting plates on the connecting rod (61) is the same as the number of the guide plate (6); a fixing column is provided on the sliding support plate (62); the fixing column of the sliding support plate (62) is used to drive the rotating shell (9) to rotate; and a blind hole is provided on the sliding support plate (62). The guide plate (6) is slidably connected to a limit pin (63), the limit pin (63) limits the sliding support plate (62) through a blind hole, a first spring is provided between the limit pin (63) and the guide plate (6), a second tension spring is provided between the connecting plate of the connecting rod (61) and the adjacent sliding support plate (62), and an electric push rod (64) is provided on the reaction tank (3), the telescopic end of the electric push rod (64) is fixedly connected to the connecting rod (61).

6. A MTBE deep desulfurization device according to claim 5, characterized in that: The spacing between the multiple connecting plates on the connecting rod (61) and the adjacent guide plates (6) gradually increases from bottom to top, so as to control the rotation sequence of the multiple rotating shells (9).

7. The MTBE deep desulfurization device according to claim 5, characterized in that: The dumping mechanism also includes: A condensation plate (81) is arranged in the reaction tank (3), and a through hole is arranged in the middle of the condensation plate (81) for condensing and refluxing part of the gaseous MTBE.

8. The MTBE deep desulfurization device according to claim 7, characterized in that: The cross-sectional shape of the condensation plate (81) is W-shaped, which is used to accelerate the speed at which the liquid MTBE gathers and falls.

9. A MTBE deep desulfurization device according to claim 7, characterized in that: include: A gas storage mechanism is arranged in the reaction tank (3), and is used to suppress the evaporation of liquid sulfide. The gas storage mechanism comprises: A plurality of baffles (71) are all slidably connected to the reaction tank (3); the plurality of baffles (71) and the plurality of guide plates (6) are staggeredly distributed; the baffles (71) are slidably connected to the guide shell (7); a second spring is fixedly connected between the baffle (71) and the adjacent guide plate (6); the baffle (71) is slidably connected to the air guide pipe (33); a plurality of blocking rings (72) are fixedly connected to the baffle (71); the blocking rings (72) are used to block through holes of adjacent air guide pipes (33).

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