MTBE deep desulfurization device

Abstract

The invention relates to the technical field of petrochemical engineering, in particular to an MTBE deep desulfurization device. The problem that part of high-concentration sulfide waste liquid remains in a rectifying tower in the MTBE rectifying process is solved. Comprising a desulfurization tank, the desulfurization tank is fixedly connected with a fixed shell, and a reaction tank is arranged in the fixed shell; the multiple flow guide plates are arranged in the reaction tank, guide shells are arranged on the flow guide plates, the multiple flow guide plates are distributed in a staggered mode, fixed plates are arranged in the flow guide plates, the fixed plates are rotationally connected with rotating shells, and the rotating shells are used for temporarily storing part of MTBE stock solution; and the exhaust pipe is arranged at the upper part of the reaction tank. Through rotation of the rotating shell, high-concentration sulfide waste liquid accumulated in the rotating shell is discharged from the lower part of the device, so that the possibility of accumulation of the high-concentration sulfide waste liquid in the device is reduced, and the influence of the high-concentration sulfide waste liquid on the MTBE stock solution purification efficiency is weakened.

Description

Technical Field

[0001] The invention relates to the technical field of petrochemical industry, in particular to a MTBE deep desulfurization device. Background Art

[0002] MTBE (methyl tert-butyl ether) is a commonly used gasoline additive. MTBE is mainly prepared by reacting isobutylene and methanol in the presence of an acidic catalyst. Due to the presence of a small amount of sulfur impurities in isobutylene and methanol, sulfides will remain in the final product during the production of MTBE. If the final product is used directly, it will pose a potential threat to the environment and human health. Therefore, MTBE needs to be deeply desulfurized. Existing MTBE deep desulfurization equipment usually uses catalytic hydrogenation, adsorption or oxidation to roughly remove sulfides, and then MTBE needs to be further purified through a distillation tower.

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

[0004] In view of the problem that some high-concentration sulfide waste liquid remains in the distillation tower during the MTBE distillation process, the present invention provides an MTBE deep desulfurization device.

[0005] The technical implementation scheme of the present invention is: a MTBE deep desulfurization device, comprising: a desulfurization tank, a fixed shell is fixedly connected to the desulfurization tank, a reaction tank is arranged in the fixed shell, a heating plate is arranged between the fixed shell and the reaction tank, the reaction tank is connected with an injection pipe, the injection pipe is connected with the desulfurization tank, and the lower part of the reaction tank is connected with a recovery device; a plurality of guide plates are arranged in the reaction tank, a guide shell is arranged on the guide plate, and the plurality of guide plates are staggered, a fixed plate is arranged in the guide plate, the fixed plate is rotatably connected with a rotating shell, and the rotating shell is used to temporarily store part of the MTBE raw liquid; an exhaust pipe is arranged at the upper part of the reaction tank, and is used to recover gaseous MTBE, a guide mechanism is arranged on the rotating shell, and the guide mechanism is used to control the MTBE raw liquid to flow along a specific path; a dumping mechanism is arranged in the guide plate, and is used to control the deflection of the plurality of rotating shells.

[0006] As a preferred embodiment of the present invention, the guide mechanism includes: a rotating plate, which is rotatably connected to the rotating shell, the rotating plate and the guide shell are slidably connected, the guide plate is provided with a drainage hole, a sliding frame is slidably connected in the drainage hole of the guide plate, a first tension spring is fixed between the sliding frame and the guide plate, and the sliding frame is used to block the drainage hole of the guide plate; an air guide component is provided on the rotating shell, and is used to guide the gaseous MTBE; an opening component is provided on the rotating shell, and is used to actively move the sliding frame.

[0007] As a preferred embodiment of the present invention, the air guide assembly includes: a plurality of fixed tubes fixedly connected to the rotating shell, the fixed tubes being connected to two connecting tubes; a plurality of air guide tubes fixedly connected to the guide plate, the connecting tubes being connected to adjacent air guide tubes, and a plurality of through holes being provided on the air guide tubes.

[0008] As a preferred embodiment of the present invention, a plurality of the air ducts are located on the same vertical plane, so as to allow the gaseous MTBE to rise and be discharged from the device.

[0009] As a preferred embodiment of the present invention, the opening assembly includes: a fixed lever fixedly connected to the rotating shell; a connecting curved rod fixedly connected to the sliding frame, and the fixed lever is used to push the connecting curved 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 moves the connecting rod in the dumping mechanism to enable multiple rotating shells to dump the accumulated waste liquid from top to bottom in sequence, thereby 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, so that the sulfide evaporation on the surface of the raw liquid is saturated, thereby achieving the purpose of inhibiting the evaporation of sulfides in the raw liquid and improving the purity of MTBE purified by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the structure inside the reaction tank of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the parts of the guide plate and the guide shell of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the parts of the fixed plate and the rotating shell of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the parts at the fixing pipe and the connecting pipe of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the parts at the connecting rod and the sliding support plate of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the parts of the connecting rod and the limit pin of the present invention; Figure 8 It is a cross-sectional view of the parts of the baffle and the sealing ring of the present invention.

[0020] The markings of the components in the accompanying drawings are as follows: 1-desulfurization tank, 2-fixed shell, 3-reaction tank, 4-injection pipe, 5-recovery device, 6-guide plate, 7-guide shell, 8-fixed 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-limiting pin, 64-electric push rod, 81-condensation plate, 71-baffle, 72-sealing ring. DETAILED DESCRIPTION

[0021] The following is combined with 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 part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0022] Example 1: During the deep desulfurization of MTBE by an existing distillation tower, the MTBE raw liquid in the distillation tower is usually guided in an S-shaped path, causing some high-concentration sulfide waste liquid to be retained in the distillation tower. Some sulfide waste liquid will be mixed into the MTBE being distilled, resulting in incomplete separation of MTBE and affecting the purity of the final MTBE product.

[0023] A MTBE deep desulfurization device, please refer to the attached Figure 1 -Attached Figure 6 As shown, 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 connected with an injection pipe 4, the injection pipe 4 is connected with the desulfurization tank 1, and the lower part of the reaction tank 3 is connected with a recovery device 5; a plurality of guide plates 6 are arranged in the reaction tank 3, a guide shell 7 is arranged on the guide plate 6, and the plurality of guide plates 6 are staggered. A fixed plate 8 is arranged in the guide plate 6, and the fixed plate 8 is rotatably connected with 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 for recovering gaseous MTBE, and a guide mechanism is arranged on the rotating shell 9, and the guide mechanism is used to control the MTBE raw liquid to flow along a specific path; a dumping mechanism is arranged in the guide plate 6, and is used to control the deflection of the plurality of rotating shells 9, and the guide mechanism It includes: a rotating plate 21, which is 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 drainage hole, the drainage hole of the guide plate 6 is slidably connected with a sliding frame 22, a first tension spring is fixedly connected between the sliding frame 22 and the guide plate 6, and the sliding frame 22 is used to block the drainage hole of the guide plate 6; an air guide component, which is arranged on the rotating shell 9 and is used to guide the gaseous MTBE; an opening component, which is arranged on the rotating shell 9 and is used to actively move the sliding frame 22, and the air guide component includes: a plurality of fixed pipes 31, which are fixedly connected to the rotating shell 9, and the fixed pipe 31 is connected to two connecting pipes 32; a plurality of air guide pipes 33, which are fixedly connected to the guide plate 6, and the connecting pipes 32 are connected to adjacent air guide pipes 33, and a plurality of through holes are arranged on the air guide pipe 33, and the plurality of air guide pipes 33 are located on the same vertical plane, which are used to make the gaseous MTBE rise and discharge from the device.

[0024] In the above scheme, the problem that part of the high-concentration sulfide waste liquid will be retained in the distillation tower during the distillation of MTBE by the distillation tower is solved; a control panel is provided on the desulfurization tank 1, and a condensing device is provided on the exhaust pipe 10. The condensing device, the heating plate and the dumping mechanism are all electrically connected to the control panel. The guide shell 7 is aligned with the drainage hole of the upper guide plate 6. After the MTBE raw liquid entering the reaction tank 3 is fully accumulated in the first rotating shell 9, it enters the next rotating shell 9 through the drainage hole of the guide plate 6 and the lower guide shell 7. The connecting pipe 32 is a hose and can be retracted. The sliding frame 22 is used to prevent the gaseous MTBE from moving upward through the drainage hole of the guide plate 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 liquid through the exhaust pipe 10 and then discharged from the device. The fixed plate 8 is used to keep the rotating shell 9 in an inclined state and accumulate part of the MTBE raw liquid, thereby extending the time for the MTBE raw liquid to be heated and distilled in the reaction tank 3 and increasing the distillation efficiency of MTBE.

[0025] Working process: When the device is used for deep desulfurization of MTBE, the operator starts the device, and the control panel starts the heating plate between the fixed shell 2 and the reaction tank 3 and the condensing device at the exhaust pipe 10, and the reaction tank 3 is heated to a constant temperature (the heating temperature only evaporates and gasifies the MTBEZ in the raw liquid), and the desulfurization tank 1 injects the roughly desulfurized MTBE raw liquid (subsequently replaced by raw liquid) into the reaction tank 3 through the injection pipe 4. The injection pipe 4 first injects the raw liquid into the uppermost rotating shell 9. When a rotating shell 9 is full of raw liquid, the raw liquid enters the drainage hole of the guide plate 6. The sliding frame 22 moves downward under the action of the raw liquid weight, and the sliding frame 22 stretches the first tension spring connected to it. The drainage hole of the guide plate 6 opens, and the raw liquid enters the next rotating shell 9 through the drainage hole of the guide plate 6 and the lower guide shell 7. As the injection pipe 4 continues to inject raw liquid into the reaction tank 3, the raw liquid passes through multiple rotating shells. 9 flows downward, because the heating plate between the fixed shell 2 and the reaction tank 3 heats the raw liquid in the multiple rotating shells 9, as the raw liquid flows downward, the closer to the lower rotating shell 9, the higher the sulfur content of the raw liquid and the smaller the flow rate of the raw liquid, and finally the sulfide waste liquid flows to the lower side of the reaction tank 3. When the flow rate of the raw liquid entering the drainage hole of the guide plate 6 becomes smaller, the sliding frame 22 is reset and blocks the drainage hole of the guide plate 6 under the tension of the connected first tension spring, and at the same time, the recovery device 5 intermittently collects and reheats the sulfide waste liquid at the lower side of the reaction tank 3, so that part of the residual MTBE is vaporized and re-injected between the two adjacent guide plates 6 in the reaction tank 3, and the gaseous MTBE evaporated from the raw liquid accumulates between the two adjacent guide plates 6, and the gaseous MTBE flows upward through the through hole of the air guide pipe 33, the fixed pipe 31 and the connecting pipe 32. Finally, the gaseous MTBE is liquefied through the condensation device of the exhaust pipe 10 and discharged from the device.

[0026] During the continuous evaporation of the raw liquid in the rotating shell 9, the control panel starts the dumping mechanism, and the multiple rotating shells 9 are deflected upward from top to bottom in turn. The raw liquid in the rotating shell 9 will gradually accumulate some high-concentration sulfide waste liquid during the continuous distillation process, and the residual waste liquid in the rotating shell 9 is dumped into the drainage hole of the 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 raw liquid is guided into the rotating shell 9 through the rotating plate 21.

[0027] During the deflection of the rotating shell 9, the opening component allows the sliding frame 22 to release the blockage of the drainage hole of the guide plate 6 to prevent the waste liquid from accumulating in the drainage hole of the guide plate 6. Then the control panel controls the dumping mechanism to reset. The rotating shell 9 rotates and resets due to its own gravity and the gravity of the flowing raw liquid. The opening component moves and resets. Through the sequential rotation of multiple rotating shells 9, all the waste liquid is discharged to the bottom of the reaction tank 3 and discharged from the device, which effectively reduces the possibility of high-concentration sulfide waste liquid being retained in the reaction tank 3 and ensures the safety of the parts in the device. When the device completes the distillation of the raw liquid, the control panel starts the dumping mechanism to remove the residual liquid in the reaction tank 3. The control panel turns off the dumping mechanism, the heating plate and the condensing device on the exhaust pipe 10. Finally, all the parts in the device are restored to their initial positions.

[0028] Please refer to the attached Figure 4 -Attached Figure 6 As shown, the opening assembly includes: a fixed lever 51 fixedly connected to the rotating shell 9; a connecting curved rod 52 fixedly connected to the sliding frame 22, and the fixed lever 51 is used to push the connecting curved rod 52.

[0029] In the above scheme, the purpose is to prevent the retention of raw liquid in the reaction tank 3 and accelerate the discharge of gaseous MTBE from the device under the condition that the flow of raw liquid 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, which blocks the gaseous MTBE on the lower side from entering the drainage hole of the guide plate 6. Through the rotation of the rotating shell 9, the fixed lever 51 and the connecting bent rod 52 actively move the sliding frame 22, and the sliding frame 22 releases the blockage of the drainage hole of the guide plate 6, so as to facilitate the transfer of the raw liquid or residual waste liquid in the rotating shell 9 to the next rotating shell 9.

[0030] 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 rod 52, the drainage hole of the guide plate 6 opens, and the original liquid flows downward from both sides of the sliding frame 22. When the rotating shell 9 swings to reset, the sliding frame 22 drives the connecting bent rod 52 to move upward synchronously and reset under the tension of the first tension spring connected thereto.

[0031] Please refer to the attached Figure 1 -Attached Figure 4 , Attachment 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.

[0032] 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.

[0033] Working process: when the device starts to work, the control panel starts 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, and the second tension spring between the connecting plate and the sliding support plate 62 on the connecting rod 61 gradually stretches. When the pulling force of the second tension spring pulling the sliding support plate 62 is greater than the resistance of the limiting pin 63 limiting the sliding support plate 62, the limiting 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 releases 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 turn, and then The control panel controls the telescopic end of the electric push rod 64 to extend and reset, and 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 reinserted 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 are swung and reset under the action of the original liquid and their own gravity. The electric push rod 64 continuously repeats the above-mentioned slow contraction and extension operations, so that the rotating shell 9 swings intermittently, reducing the possibility of high-concentration sulfide waste liquid being retained in the rotating shell 9. Finally, the control panel closes 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, thereby improving the convenience of cleaning the device.

[0034] Example 2: Based on Example 1, please refer to the attached Figure 2 , Attachment Figure 3 and attached Figure 8 As shown, it also includes: an air storage mechanism, which is arranged in the reaction tank 3, and the air storage mechanism is used to suppress the evaporation of liquid sulfide. The air storage mechanism includes: a plurality of baffles 71, which are all slidably connected to the reaction tank 3, and the plurality of baffles 71 are staggered with the plurality of guide plates 6. The baffles 71 are slidably connected to the guide shell 7, and a second spring is fixed between the baffle 71 and the adjacent guide plate 6. The baffle 71 is slidably connected to the air guide pipe 33, and a plurality of sealing rings 72 are fixed on the baffle 71. The sealing rings 72 are used to seal the through holes of the adjacent air guide pipes 33.

[0035] In the above scheme, the purpose is to solve the problem that during the evaporation of MTBE in the raw liquid, there is also a trace evaporation of the sulfide solution, and the evaporation of the sulfide solution will be accelerated during the discharge of the gaseous MTBE; initially, the baffle 71 and the sealing ring 72 block the through hole of the air guide pipe 33, and the sliding frame 22 blocks the drainage hole of the guide plate 6, and the gaseous MTBE evaporated from the raw liquid in the rotating shell 9 is only accumulated between the guide plate 6 and the baffle 71 on its upper side.

[0036] 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.

[0037] 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); a guide shell (7) is arranged on the guide plate (6); the plurality of guide plates (6) are arranged in a staggered manner; a fixed plate (8) is arranged in the guide plate (6); the fixed plate (8) is rotatably connected to a rotating shell (9); 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 a specific path. A dumping mechanism is arranged in the guide plate (6) and is used to control the deflection of the plurality of rotating shells (9).

2. A MTBE deep desulfurization device according to claim 1, characterized in that: 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), the guide plate (6) being provided with a drainage hole, 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) and used for guiding the gaseous MTBE; An opening component is arranged on the rotating shell (9) and is used to actively move the sliding frame (22).

3. A MTBE deep desulfurization device according to claim 2, 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).

4. A MTBE deep desulfurization device according to claim 3, 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.

5. The MTBE deep desulfurization device according to claim 3, 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).

6. The MTBE deep desulfurization device according to claim 3, 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).

7. A MTBE deep desulfurization device according to claim 6, 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).

8. The MTBE deep desulfurization device according to claim 6, 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.

9. The MTBE deep desulfurization device according to claim 8, 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.

10. The MTBE deep desulfurization device according to claim 8, 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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