Micro-tube reaction device and process for preparing mercaptan

Abstract

The present invention relates to the technical field of mercaptan preparation, and particularly discloses a mercaptan preparation microtubular reaction apparatus and process, the mercaptan preparation microtubular reaction apparatus comprises a material pipe 1 and a material pipe 2, the material pipe 1 is internally provided with a catalysis sheet, the exterior of the material pipe 1 is provided with a mounting pipe, the mounting pipe is provided with a through hole 2 in a penetrating manner, and the material pipe 1 is provided with a through hole 1; clamping plates are arranged in the first through hole and the second through hole in a sliding mode and used for containing catalytic pieces, a pushing piece is arranged on the mounting pipe and used for pushing the clamping plates in the second through hole into the first through hole, and when the clamping plates enter the first through hole, the clamping plates in the first through hole are pushed out of the first material pipe, and a material frame is arranged on the mounting pipe; an adjusting ring is arranged on the mounting pipe, a clamping piece is arranged on the adjusting ring, and the adjusting ring rotates to be used for transferring the clamping plate pushed out of the first material pipe to the pushing piece and the material frame. The microtubular reaction device and process for preparing mercaptan have the effect of improving the conversion rate.

Description

Technical Field

[0001] The invention relates to the technical field of preparing mercaptan, and in particular to a micro-tubular reaction device and a process for preparing mercaptan. Background Art

[0002] The synthesis of high-carbon mercaptans by the reaction of high-carbon olefins with hydrogen sulfide is an important chemical raw material that can be used in medicines, antidotes and rubber vulcanization accelerators. In the preparation process of mercaptans, equipment with catalytic functions is required to provide a stable reaction environment and efficient catalysis.

[0003] The patent application document with publication number CN118022637A discloses a synthesis process and production device of tert-dodecyl mercaptan, which uses dodecene and hydrogen sulfide as raw materials, and uses a catalyst to carry out catalytic reaction under certain conditions to obtain tert-dodecyl mercaptan. The device required for the process has fixed-bed reactor, micro high-pressure pump, tail gas blower, gas-liquid separator and other equipment, which are obtained after being connected in a specific connection mode. Fixed-bed reactor, as the core equipment for mercaptan preparation, provides a stable and efficient reaction environment. It is filled with catalyst inside so that the raw materials can react chemically on the catalyst surface. Raw materials such as olefins and hydrogen sulfide flow through the gaps between catalyst particles, and react chemically under the action of the catalyst to generate the target product mercaptan.

[0004] However, the following problems still exist in this scheme. Although the use of a solidified bed reactor achieves continuity, the gas-liquid two-phase is easy to aggregate and split in the solidified bed reactor, resulting in a reduction in the contact area, affecting the mass transfer efficiency between the reactants, thereby reducing the conversion rate. In addition, the addition reaction of high-carbon olefins and hydrogen sulfide belongs to a gas-liquid-solid three-phase reaction. The traditional synthesis process generally uses an intermittent reactor, accompanied by high-speed stirring to improve the dispersion of each phase in the reaction system. The intermittent reactor needs to be started and stopped alternately, which is extremely unfavorable to the stability of the product and also has the problem of low conversion rate. Summary of the invention

[0005] The invention provides a micro-tubular reaction device and process for preparing thiol, aiming to solve the problem of low conversion rate in the related technology.

[0006] In the first aspect, the present invention provides a micro-tube reaction device for preparing thiol, comprising a material tube 1 and a material tube 2 which are interconnected, a catalyst sheet is arranged in the material tube 1, a mounting tube is arranged outside the material tube 1, a through hole 2 is penetrated through the mounting tube, a through hole 1 which is connected to the through hole 2 is opened on the material tube 1, a clamping plate for placing the catalyst sheet is slidably arranged in the through hole 1 and the through hole 2, a pushing member is arranged on the mounting tube, the pushing member is used to push the clamping plate of the through hole 2 into the through hole 1, and when the clamping plate enters the through hole 1, the clamping plate in the through hole 1 is pushed out from the material tube 1, a material frame for placing a spare catalyst sheet is arranged on the mounting tube, an adjusting ring is rotatably arranged on the mounting tube, a clamping member for connecting the clamping plate is arranged on the adjusting ring, the adjusting ring is rotatably used to transfer the clamping plate pushed out from the material tube 1 to the pushing member and the material frame, and the spare catalyst sheet enters the clamping plate through the material frame.

[0007] The effect is that catalytic sheets are placed on the pallets in through hole two and through hole one, and a spare catalytic sheet is placed on the pallet in through hole two. The pushing member pushes the pallet in through hole two into through hole one, and at the same time pushes the pallet in through hole one out of material tube one until it enters into another through hole two, thereby completing the replacement of the catalytic sheet, ensuring the activity of the catalytic sheet during the reaction of the mixed material, and improving the conversion rate.

[0008] Preferably, the clamping member includes a base plate, a clamping rod and an elastic member, the base plate is connected to an adjusting ring, the clamping rod slides on the base plate in a direction toward the clamping plate, a clamping hole is provided on the clamping plate, the elastic member connects the clamping rod and the base plate respectively, and the elastic member is used to drive the clamping rod to move and engage with the clamping hole.

[0009] The effect is that the elastic member drives the clamping rod to move toward the clamping hole, so that the clamping rod and the clamping hole are buckled, so that the adjusting ring drives the clamping plate to move and adjust the position of the clamping plate.

[0010] Preferably, a baffle is provided on the mounting tube, and the baffle is arranged at two through holes away from the pushing member. When the card plate moves out of the material tube, it enters the baffle. A guide ring is coaxially arranged on the mounting tube with the mounting tube, and a guide plate is provided at the end of the card rod away from the card plate. The guide plate and the guide ring are in sliding contact with the side away from the base plate. A guide part is provided at a position corresponding to the baffle on the guide ring, and an inclined surface is provided at one end of the guide part, and the other end is arranged corresponding to the card plate. When the guide plate cooperates with the guide part through the inclined surface, the card rod moves in a direction away from the card plate. When the guide plate is separated from the guide part, the elastic part drives the card rod to move into the card hole.

[0011] The effect is that when the card plate is moved out through the material tube 1, it enters the baffle, and at the same time the guide plate moves to separate from the guide part, and the card rod moves toward the card hole under the action of the elastic member 1 so that the card rod and the card hole are engaged, and the moved card plate is transferred to the push member so that the catalyst plate can be replaced again.

[0012] Preferably, a second slope is provided on the side of the guide ring 1 facing away from the pushing member, and the second slope is provided close to the pushing member. When the clamping plate moves to the pushing member, the guide plate drives the clamping rod to separate from the clamping hole under the action of the second slope.

[0013] The effect is that after the card plate moves to the push member, the guide plate drives the card rod to separate from the card hole under the action of the second inclined surface, so that the push member pushes the card plate into the through hole one to adjust the position of the card plate.

[0014] Preferably, a placement groove for placing the catalytic sheet is provided on the card plate, a push rod is slidably provided on the base plate in the direction toward the placement groove, the push rod passes through the base plate, a second spring is provided between the push rod and the base plate, the second spring is used to drive the push rod to move in the direction away from the card plate, an auxiliary rod is slidably provided on the mounting tube, a mounting rod is provided on the auxiliary rod, a third spring is provided between the mounting rod and the mounting tube, the third spring is used to drive the auxiliary rod to move in the direction of the push rod, the elastic force of the third spring is greater than the elastic force of the second spring, a second guide ring is provided on the adjusting ring, a first clearance groove is provided on the guide ring second at a corresponding position to the base plate, the mounting rod and the guide ring two are slidably abutted, and when the mounting rod moves into the first clearance groove, it drives the auxiliary rod to move toward the push rod.

[0015] The effect is that when the first clearance groove moves to the installation rod, the installation rod enters the first clearance groove, and the auxiliary rod abuts against the push rod under the action of the elastic member three and drives the push rod to move, and the push rod moves.

[0016] Preferably, a blocking plate for blocking the through hole one is slidably provided on the mounting tube, and a spring member four is provided between the blocking plate and the mounting tube, and the spring member four is used to drive the blocking plate to slide to a place in the through hole, a connecting rod is provided on the blocking plate, and a guide ring three is provided on the adjusting ring, and a clearance groove two is provided on the guide ring three, and the clearance groove two includes an inclined surface four, and the guide ring three rotates the connecting rod to abut against the guide ring three through the inclined surface four, and the blocking plate is separated from the through hole one when the connecting rod abuts against the guide ring three.

[0017] The effect is that when the connecting rod is in the second clearance groove, the blocking plate is in the first through hole. When the connecting rod is driven by the fourth inclined surface to abut against the guide ring three, the blocking plate is driven to move to separate from the first through hole, so that the catalyst sheet can be replaced later.

[0018] Preferably, an opening is provided on one side of the material frame close to the pallet, a slide is slidably provided at the opening, an elastic member five connected to the slide is provided on the material frame, the elastic member five is used to drive the slide to move and seal the opening, a rubber block one is provided on the slide, and a rubber block two is provided on the pallet. The pallet slides through the abutment between the rubber block two and the rubber block one to drive the slide to slide. After the pallet moves to the pushing member, the rubber block one and the rubber block two are deformed and separated, and the catalyst sheet enters the placement groove through the opening.

[0019] The effect is that the card plate moves through the abutment between rubber block 2 and rubber block 1, driving the slide plate to slide and open the opening, while compressing the elastic member 5. When the catalyst sheet enters the placement groove and the card plate moves to the pushing member, the rubber block 1 and the rubber block 2 are subjected to excessive force, and the two are deformed and separated, and the slide plate slides and closes the opening under the action of the elastic member 5.

[0020] Preferably, a spring member six is ​​provided in the material frame, the spring member six abuts against the catalyst sheet, and is used to drive the catalyst sheet to slide in a direction toward the outside of the material frame. A slope five is provided on the side of the slide plate, and the slide plate slides through the slope five to push the catalyst sheet at the opening into the material frame.

[0021] The effect is that after the opening is opened, the elastic member 6 drives the catalyst sheet to move in the direction toward the opening so that the catalyst sheet enters the placement groove.

[0022] Preferably, a driving assembly is provided on the mounting tube, the driving assembly includes a driving member and a gear, the driving member is provided on the mounting tube, the gear is provided at the output end of the driving member, and a tooth groove meshing with the gear is provided on the outer side of the adjusting ring.

[0023] The effect is that the driving member drives the adjusting ring to rotate through the gears and the tooth grooves, thereby adjusting the position of the clamping plate.

[0024] In a second aspect, the present invention provides a process for preparing thiols, using the above-mentioned micro-tubular reaction device for preparing thiols, comprising the following steps: high-carbon olefins are transported in material pipe one, hydrogen sulfide gas enters material pipe one through material pipe two, the two are mixed in material pipe one and then pass through a catalyst sheet, and the high-carbon olefins and hydrogen sulfide react with each other to generate thiols under the action of the catalyst sheet.

[0025] Beneficial effects: In the present invention, when the activity of the catalyst sheet decreases after being used for a period of time or needs to be replaced, the driving member drives the adjusting ring to rotate, moves the sealing plate to open the second through hole, and places a spare catalyst sheet on the card plate in the second through hole. Then, the pushing member pushes the card plate in the second through hole to move into the first through hole, and the catalyst sheet is replaced quickly, thereby ensuring the activity of the catalyst sheet when the mixed liquid reacts in the first material pipe, thereby improving the conversion rate of the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is a partially cutaway schematic diagram of the material tube 1 and the material tube 2 in the present invention.

[0028] Figure 3 It is a schematic diagram of the structure of through hole 1 and through hole 2 in the present invention.

[0029] Figure 4It is a schematic diagram of the structure of the driving component in the present invention.

[0030] Figure 5 It is a structural schematic diagram of the adjustment ring in the present invention.

[0031] Figure 6 It is a structural schematic diagram of the guide part in the present invention.

[0032] Figure 7 yes Figure 5 Schematic diagram of the structure at A in the middle.

[0033] Figure 8 It is a structural schematic diagram of the card component in the present invention.

[0034] Fig. 9 It is a structural schematic diagram of the guide ring three in the present invention.

[0035] Fig.10 It is a partial exploded schematic diagram of the slide plate and the pallet in the present invention.

[0036] Reference numerals: 01. High carbon olefin storage tank; 02. Hydrogen sulfide storage tank; 1. Material pipe 1; 11. Through hole 1; 2. Material pipe 2; 3. Catalytic sheet; 4. Mounting pipe; 41. Through hole 2; 42. Baffle; 43. Guide ring 1; 431. Guide part; 432. Inclined surface 1; 433. Inclined surface 2; 44. Auxiliary rod; 441. Mounting rod; 442. Elastic part 3; 45. Blocking plate; 451. Connecting rod; 452. Elastic part 4; 5. Clamping plate; 51. Placement slot; 52. Clamping hole; 53. Rubber block 2; 6. Pushing member; 61. Pushing member Rod; 7, adjusting ring; 71, clamping piece; 711, base plate; 712, clamping rod; 713, elastic piece 1; 72, tooth groove; 73, guide plate; 74, push rod; 75, elastic piece 2; 76, guide ring 2; 761, make way groove 1; 762, inclined plane 3; 77, guide ring 3; 771, make way groove 2; 772, inclined plane 4; 8, material frame; 81, opening; 82, slide plate; 821, rubber block 1; 822, inclined plane 5; 83, elastic piece 5; 84, elastic piece 6; 9, driving assembly; 91, driving member; 92, gear. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0038] Reference Figures 1 to 10The present invention discloses a micro-tubular reaction device for preparing mercaptan, comprising a feed pipe 1 and a feed pipe 2, wherein the feed pipe 1 is connected to a high carbon olefin storage tank 01, one end of the feed pipe 2 is connected to a hydrogen sulfide storage tank 02, and the other end is connected to a feed pipe 2 2, and the feed pipe 2 2 and the hydrogen sulfide storage tank 02 are both provided with multiple groups, and the multiple groups of feed pipes 2 2 are spaced apart on the feed pipe 2 2, and multiple groups of catalyst sheets 3 are provided in the feed pipe 1, the catalyst sheets 3 are composed of catalysts, and the catalyst sheets 3 are arranged at the connection between the feed pipe 1 and the feed pipe 2 2, and after the materials enter the feed pipe 1 through the feed pipe 2 2 and are mixed to form a mixed liquid, the mixed liquid passes through the catalyst sheet 3, and mercaptan is generated under the action of the catalyst sheet 3.

[0039] Reference Figures 2 to 4 A mounting tube 4 is sleeved on the outside of the material tube 1, and a through hole 2 41 is penetrated on the mounting tube 4. A through hole 11 is penetrated on the material tube 1, and the through hole 111 and the through hole 2 41 are arranged on the same straight line. A clamping plate 5 is arranged in the through hole 11 and the through hole 2 41, and a placement groove 51 for placing the catalyst sheet 3 is penetrated on the clamping plate 5. The clamping plate 5 is slidably arranged in the through hole 11 and the through hole 2 41. After the clamping plate 5 slides into the material tube 1, the material passes through the catalyst sheet 3 when flowing in the material tube 1. A pusher 6 is arranged on the mounting tube 4, and the output end of the pusher 6 is arranged toward the through hole 2 41, and a push rod 61 is arranged at the output end of the pusher 6. When the catalyst sheet 3 in the material tube 1 needs to be replaced, the push member 6 drives the push rod 61 to move to abut against the clamping plate 5 in the through hole 11, and pushes the clamping plate 5 to move. The clamping plate 5 moves and abuts against the clamping plate 5 in the material tube 1, and then pushes the clamping plate 5 in the material tube 1 to move to the outside of the material tube 1, replaces the clamping plate 5 in the material tube 1, and then replaces the catalyst sheet 3 to improve the reaction effect of the material.

[0040] Reference Figures 2 to 4 , an adjusting ring 7 is arranged on the mounting tube 4, the adjusting ring 7 is arranged to rotate around the mounting tube 4, and a clamp 71 is arranged on the adjusting ring 7, and the clamp 71 is used to connect the clamp 5. In addition, a material frame 8 is arranged on the mounting tube 4, and the material frame 8 is used to place spare catalyst sheets 3. A plurality of catalyst sheets 3 are stacked and placed in the material frame 8, and an opening 81 is arranged on the side of the material frame 8 close to the mounting tube 4. When the clamp 5 is in the through hole 11 close to the pusher 6, the placement groove 51 on the clamp 5 corresponds to the material frame 8. After the catalyst sheet 3 is replaced, the adjusting ring 7 is connected to the clamp 5 pushed out from the material tube 1 through the clamp 71. After the used catalyst sheet 3 is removed, the adjusting ring 7 is rotated, and the adjusting ring 7 drives the clamp 5 to rotate to the material frame 8 again, and then the catalyst sheet 3 in the material frame 8 is placed in the clamp 5. Repeat the above operation, the catalyst sheet 3 can be replaced again, and the replacement efficiency of the catalyst sheet 3 is improved.

[0041] Reference Figure 2 and Figure 4A driving assembly 9 is arranged on the mounting tube 4, and the driving assembly 9 includes a driving member 91 and a gear 92. The driving member 91 can be set as a motor, and the gear 92 is set at the output end of the motor. A tooth groove 72 is opened on the outer side of the adjustment ring 7, and the gear 92 is meshed with the tooth groove 72. The driving member 91 drives the adjustment ring 7 to rotate through the gear 92, thereby adjusting the position of the clamping plate 5.

[0042] Reference Figures 5 to 8 The clamping member 71 includes a base plate 711, a clamping rod 712 and an elastic member 713. The base plate 711 is connected to the side of the adjusting ring 7, and the base plate 711 and the adjusting ring 7 are arranged in the same plane. The clamping rod 712 passes through the base plate 711 and is slidably arranged on the base plate 711 in a direction perpendicular to the base plate 711. The clamping plate 5 and the base plate 711 are arranged in parallel and spaced apart, that is, the clamping rod 712 is slidably arranged in a direction toward the clamping plate 5. The elastic member 713 can be set as a spring, and the spring is arranged on the base plate 711 away from On one side of the card plate 5, a spring is arranged along the sliding direction of the card rod 712, one end of the spring is connected to the base plate 711, and the other end is connected to the end of the card rod 712. The spring 713 is used to drive the card rod 712 to slide in the direction toward the card plate 5. A card hole 52 is opened on the card plate 5. The card rod 712 can slide into the card hole 52 and engage with the card hole 52, so that when the adjustment ring 7 rotates, the card plate 5 is driven to move through the base plate 711 and the card rod 712, and then the position of the card plate 5 is adjusted.

[0043] Reference Figures 4 to 6 A baffle 42 is provided on the mounting tube 4. The baffle 42 is provided at the through hole 41 away from the pushing member 6, and the baffle 42 and the through hole 41 are spaced apart. When the clamping plate 5 is moved out of the material tube 1, the clamping plate 5 enters into the baffle 42 to reduce the phenomenon of the clamping plate 5 falling, and at the same time facilitates the matching of the clamping rod 712 and the clamping hole 52.

[0044] Reference Figures 4 to 8In order to facilitate the engagement of the clamping rod 712 with the clamping hole 52 when it moves to the clamping plate 5, a guide ring 43 is provided on the mounting tube 4. The guide ring 43 is coaxially arranged with the mounting tube 4. The guide ring 43 is arranged on the side of the substrate 711 away from the clamping plate 5. A guide plate 73 is provided at the end of the clamping rod 712 away from the clamping plate 5. The guide plate 73 slides and abuts against the side of the guide ring 43 away from the substrate 711. A guide portion 431 is provided on the guide ring 43. The guide portion 431 is arranged corresponding to the baffle 42. An inclined surface 432 is provided at one end of the guide portion 431, and the other end is arranged corresponding to the clamping plate 5. The rotation of the adjusting ring 7 drives the base plate 711 and the clamping rod 712 to move, and drives the guide plate 73 to move at the same time. When the guide plate 73 moves to the inclined surface 432, it gradually slides to abut against the guide portion 431 under the action of the inclined surface 432. At the same time, the inclined surface 432 drives the guide plate 73 to move in a direction away from the base plate 711, and drives the clamping rod 712 to move and stretches the elastic member 713 at the same time. When the base plate 711 moves to separate from the guide portion 431, the clamping rod 712 moves to correspond to the clamping hole 52, and when the base plate 711 is separated from the guide portion 431, the elastic member 713 drives the guide plate 73 to move to abut against the side of the guide ring 43, and drives the clamping rod 712 to cooperate with the clamping hole 52, so as to realize the cooperation between the clamping rod 712 and the clamping plate 5.

[0045] Reference Figures 4 to 6 In order to facilitate the transfer of the card plate 5 to the pusher 6, a second slope 433 is also provided on the guide ring 1 43. The second slope 433 is provided on the side of the guide ring 1 43 away from the pusher 6, that is, the second slope 433 and the first slope 432 are provided on the same side of the guide ring 1 43. The second slope 433 is provided close to the pusher 6. When the card plate 5 moves to the pusher 6, the guide plate 73 moves to the second slope 433. Then the adjusting ring 7 drives the guide plate 73 to continue to rotate. Under the action of the second slope 433, the guide plate 73 drives the clamping rod 712 to move in the direction away from the card plate 5. When the card plate 5 moves to the output end of the pusher 6, the clamping rod 712 separates from the card plate 5, so that the pusher 6 drives the card plate 5 to move, and the catalyst sheet 3 in the material tube 1 is replaced.

[0046] Reference Figures 5 to 8In order to facilitate the removal of the catalyst sheet 3 in the placement groove 51 when the card plate 5 is removed from the material tube 1, so as to place a new catalyst sheet 3, a push rod 74 is arranged on the base plate 711, the push rod 74 penetrates the base plate 711 and slides on the base plate 711 in the direction toward the placement groove 51, and a second elastic member 75 is arranged outside the push rod 74, and the second elastic member 75 is used to drive the push rod 74 to slide in the direction away from the base plate 711, that is, in the initial state, the push rod 74 and the card plate 5 are spaced apart. An auxiliary rod 44 is slidably arranged on the mounting tube 4. The auxiliary rod 44 is slidably arranged in the direction toward the base plate 711. A mounting rod 441 is arranged at one end of the auxiliary rod 44 away from the base plate 711. A spring 3 442 is arranged at the side of the mounting rod 441 away from the auxiliary rod 44. The spring 3 442 can be arranged as a spring. The spring is arranged at one end of the mounting rod 441 away from the auxiliary rod 44. One end of the spring is connected to the mounting rod 441, and the other end is connected to the mounting tube 4. The spring 3 442 is used to drive the auxiliary rod 44 to slide in the direction toward the base plate 711, and the elastic force of the spring 3 442 is greater than the elastic force of the spring 2 75. A guide ring 2 76 is arranged on the adjusting ring 7. A clearance groove 1 761 is provided at the guide ring 2 76 corresponding to the base plate 711. The clearance groove 1 761 is provided with an inclined surface 3 762 along the side away from the rotation direction of the adjusting ring 7. The mounting rod 441 slides and abuts against the guide ring 2 76 under the action of the spring 3 442.

[0047] After the clamping plate 5 moves outside the material tube 1, the clearance groove 1 761 rotates to the installation rod 441. At this time, the auxiliary rod 44 and the push rod 74 are on the same straight line. The installation rod 441 enters the clearance groove 1 761 under the action of the spring member 3 442, and at the same time drives the auxiliary rod 44 to move toward the push rod 74, and then pushes the push rod 74 to move toward the placement groove 51 to push out the catalyst sheet 3 in the placement groove 51, so that after the clamping plate 5 rotates to the push member 6, a new catalyst sheet 3 can be placed in the placement groove 51. In addition, as the adjustment ring 7 continues to rotate, the inclined surface 3 762 of the installation rod 441 moves again to abut against the guide ring 2 76, so that the push rod 74 and the auxiliary rod 44 are both moved to the initial position, reducing the phenomenon that the push rod 74 interferes with the movement of the clamping plate 5.

[0048] Reference Figure 4 and Fig. 9In order to improve the sealing performance of the material pipe 1 at the through hole 11, a sealing plate 45 is slidably arranged on the mounting tube 4. Two sealing plates 45 are arranged, and the two sealing plates 45 are respectively arranged at the two ends of the through hole 11. The sealing plate 45 is slidably arranged in the mounting tube 4 along the length direction of the material pipe 1. When the sealing plate 45 moves to the through hole 11, the through hole 11 is blocked to reduce the leakage of materials when being transported in the material pipe 1. A connecting rod 451 for connecting the two blocking plates 45 is provided between the two blocking plates 45, and the connecting rod 451 extends to the adjusting ring 7, and a guide ring three 77 is provided on the adjusting ring 7, and a clearance groove two 771 is provided on the guide ring three 77, and the clearance groove two 771 includes a slope four 772, and two clearance grooves two 771 are provided around the center of the adjusting ring 7, and a spring member four 452 is provided on the side of the blocking plate 45, and the spring member four 452 can be set as a spring, and the spring is set along the sliding direction of the blocking plate 45, and one end of the spring is connected to the mounting tube 4, and the other end is connected to the blocking plate 45, and the spring member four 452 is used to drive the blocking plate 45 to slide in the direction toward the through hole one 11.

[0049] In the initial state, the connecting rod 451 is in the second giving way groove 771, and the blocking plate 45 blocks the through hole 11. The adjusting ring 7 drives the guide ring 3 77 to rotate, and the connecting rod 451 gradually moves to abut the side of the guide ring 3 77 through the inclined surface 4 772, and at the same time drives the blocking plate 45 to move to separate from the through hole 11 and compress the elastic member 452 to replace the catalyst plate 3. When the guide ring 3 77 drives another giving way groove 2 771 to move to the connecting rod 451, the connecting rod 451 enters the giving way groove 2 771, and the blocking plate 45 moves to the initial position to block the through hole 11 again.

[0050] Reference Figures 4 to 10 In order to facilitate the catalyst sheet 3 in the material frame 8 to enter the placement groove 51, a slide plate 82 is slidably provided at the opening 81 of the material frame 8, and a spring 5 83 is provided on the side of the material frame 8. One end of the spring 5 83 is connected to the material frame 8, and the other end is connected to the slide plate 82. The spring 5 83 can be set as a spring, and the spring 5 83 is used to drive the slide to block the opening 81. A rubber block 1 821 is provided on the side of the slide plate 82 away from the material frame 8, and a rubber block 2 53 is provided on the side of the clamping plate 5 close to the material frame 8. When the clamping plate 5 rotates with the adjusting ring 7, the rubber block 2 53 will be driven to pass through the rubber block 1 821. When the card plate 5 rotates to the material frame 8, the rubber block 2 53 and the rubber block 1 821 abut against each other, and then drive the slide plate 82 to slide. The slide plate 82 slides and compresses the elastic member 5 83 until the opening 81 is opened, and the catalyst sheet 3 in the material frame 8 enters the placement groove 51, and then the card plate 5 continues to move. After the card plate 5 is completely moved to the output end of the push member 6, the rubber block 2 53 and the rubber block 1 821 are subjected to excessive force and deformed and separated, and then the slide plate 82 returns to the initial position under the action of the elastic member 5 83, and the material frame 8 is closed.

[0051] Reference Fig.10 A slope 5 822 is provided on the side of the slide plate 82, and the slope 5 822 is arranged toward the inside of the material frame 8. The slope 5 822 is arranged so that after the slide plate 82 slides to the initial position, the catalyst sheet 3 at the opening 81 can be pushed into the material frame 8. In addition, a spring 6 84 is arranged in the material frame 8. The spring 6 84 can be set as a spring. The spring 6 84 is arranged on the side of the material frame 8 away from the card plate 5. The end of the spring 6 84 abuts against the catalyst sheet 3. The spring 6 84 is used to drive the catalyst sheet 3 to move toward the card plate 5, so that after the opening 81 is opened, the catalyst sheet 3 enters the placement groove 51.

[0052] The implementation principle of the present invention is as follows: when the catalyst sheet 3 needs to be replaced, the driving member 91 drives the adjusting ring 7 to rotate, so that the connecting rod 451 abuts against the guide ring 3 77, and the blocking plate 45 is separated from the through hole 11, and the through hole 11 is connected with the through hole 2 41, and at this time, the card plate 5 in the through hole 2 41 away from the pushing member 6 moves to the outside of the through hole 2 41, and the pushing member 6 pushes the card plate 5 in the through hole 2 41 to move into the through hole 11, and pushes the card plate 5 in the material tube 1 out, and pushes the card plate 5 out of the through hole 2 41 and into the baffle 42, and then the adjusting ring 7 continues to rotate, driving the card plate 5 to move to the pushing member 6, and at the same time The new catalytic sheet 3 enters into the placement slot 51 of the card plate 5, and at the same time, the connecting rod 451 moves to the second clearance slot 771, the blocking plate 45 blocks the through hole 11 again, and the mounting rod 441 moves to the first clearance slot 761, and the auxiliary rod 44 drives the push rod 74 to move, and the catalytic sheet 3 in the card plate 5 pushed out from the material pipe 1 is ejected, and at the same time, the guide plate 73 is separated from the guide part 431, and the card rod 712 enters the card slot and cooperates with the card plate 5, so that when the catalytic sheet 3 is replaced again, the card plate 5 is driven to move, and the catalytic sheet 3 is replaced, thereby ensuring the activity of the catalytic sheet 3 and improving the conversion rate.

[0053] The invention also discloses a process for preparing mercaptan, which adopts the micro-tubular reaction device for preparing mercaptan.

[0054] A process for preparing mercaptan comprises the following steps: High carbon olefins are transported in the feed pipe 1, and hydrogen sulfide gas enters the feed pipe 1 through the feed pipe 2. After the two are mixed in the feed pipe 1, they pass through the catalyst sheet 3, and the high carbon olefins and hydrogen sulfide react to generate mercaptan under the action of the catalyst sheet 3. After a certain reaction time, the machine is stopped to replace the catalyst sheet 3. The specific steps are as follows: S1, start the driving member 91 to drive the adjusting ring 7 to rotate, the connecting rod 451 abuts against the guide ring 3 77, the blocking plate 45 is separated from the through hole 11, and the through hole 11 is connected with the through hole 2 41; At the same time, the adjusting ring 7 drives the clamping plate 5 in the second through hole 41 away from the pushing member 6 to rotate synchronously to the outside of the second through hole 41; S2, the pusher 6 pushes the clamping plate 5 of the second through hole 41 into the material tube 1, and at the same time, the clamping plate 5 in the material tube 1 is pushed out into the second through hole 41 and abuts against the baffle 42; S3, the adjusting ring 7 continues to rotate, the connecting rod 451 enters the second clearance groove 771, and the blocking plate 45 blocks the through hole 11; At the same time, the mounting rod 441 moves into the clearance groove 761, the auxiliary rod 44 drives the ejector rod 74 to move, the ejector rod 74 ejects the catalyst sheet 3 in the clamping plate 5, and the clamping rod 712 cooperates with the clamping hole 52; At the same time, the adjusting ring 7 drives the clamping plate 5 separated from the second through hole 41 to rotate to the pushing member 6, so as to prepare for the next replacement of the catalyst sheet 3.

[0055] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A micro-tubular reaction device for preparing thiol, characterized in that: The invention comprises a material pipe (1) and a material pipe (2) which are connected to each other, a catalyst sheet (3) is arranged in the material pipe (1), a mounting pipe (4) is arranged outside the material pipe (1), a through hole (41) is penetrated through the mounting pipe (4), a through hole (11) which is connected to the through hole (41) is arranged on the material pipe (1), a clamping plate (5) for placing the catalyst sheet (3) is slidably arranged in the through hole (11) and the through hole (41), and a pushing member (6) is arranged on the mounting pipe (4), and the pushing member (6) is used to push the clamping plate (5) of the through hole (41) When the clamping plate (5) enters the through hole (11), the clamping plate (5) in the through hole (11) is pushed out from the material tube (1). A material frame (8) is provided on the mounting tube (4). An adjusting ring (7) is rotatably provided on the mounting tube (4). A clamping member (71) for connecting the clamping plate (5) is provided on the adjusting ring (7). The adjusting ring (7) is rotatably used to transfer the clamping plate (5) pushed out from the material tube (1) to the pushing member (6) and the material frame (8). The spare catalyst sheet (3) enters the clamping plate (5) through the material frame (8).

2. The micro-tubular reaction device for preparing thiols according to claim 1, characterized in that: The clamping member (71) comprises a base plate (711), a clamping rod (712) and an elastic member 1 (713); the base plate (711) is connected to the adjusting ring (7); the clamping rod (712) slides on the base plate (711) in a direction toward the clamping plate (5); a clamping hole (52) is provided on the clamping plate (5); the elastic member 1 (713) is respectively connected to the clamping rod (712) and the base plate (711); the elastic member 1 (713) is used to drive the clamping rod (712) to move to engage with the clamping hole (52).

3. The micro-tubular reaction device for preparing thiols according to claim 2, characterized in that: A baffle (42) is provided on the mounting tube (4), and the baffle (42) is provided at a position of the second through hole (41) away from the pushing member (6). When the clamping plate (5) moves out of the material tube (1), it enters the baffle (42). A guide ring (43) is coaxially provided on the mounting tube (4). A guide plate (73) is provided at one end of the clamping rod (712) away from the clamping plate (5). The guide plate (73) and the guide ring (43) are in sliding contact with each other on the side away from the base plate (711). A guide portion (431) is provided on the guide plate (43), one end of the guide portion (431) is provided with an inclined surface (432), and the other end is provided corresponding to the clamping plate (5). When the guide plate (73) cooperates with the guide portion (431) through the inclined surface (432), the clamping rod (712) moves in a direction away from the clamping plate (5). When the guide plate (73) is separated from the guide portion (431), the elastic member (713) drives the clamping rod (712) to move into the clamping hole (52).

4. The micro-tubular reaction device for preparing thiols according to claim 2, characterized in that: A second inclined surface (433) is provided on a side of the guide ring (43) facing away from the pushing member (6), and the second inclined surface (433) is provided close to the pushing member (6). When the clamping plate (5) moves to the pushing member (6), the guide plate (73) drives the clamping rod (712) to separate from the clamping hole (52) under the action of the second inclined surface (433).

5. The micro-tubular reaction device for preparing thiols according to claim 2, characterized in that: The card plate (5) is provided with a placement groove (51) for placing the catalyst sheet (3); a push rod (74) is slidably provided on the base plate (711) in a direction toward the placement groove (51); the push rod (74) penetrates the base plate (711); a second elastic member (75) is provided between the push rod (74) and the base plate (711); the second elastic member (75) is used to drive the push rod (74) to move in a direction away from the card plate (5); an auxiliary rod (44) is slidably provided on the mounting tube (4); a mounting rod (441) is provided on the auxiliary rod (44); and the mounting rod (441) and the mounting rod (441) are connected to the mounting tube (41). A third elastic member (442) is provided between the tubes (4), and the third elastic member (442) is used to drive the auxiliary rod (44) to move in the direction of the push rod (74). The elastic force of the third elastic member (442) is greater than the elastic force of the second elastic member (75). A second guide ring (76) is provided on the adjustment ring (7). A first clearance groove (761) is provided on the second guide ring (76) at a position corresponding to the base plate (711). The installation rod (441) and the second guide ring (76) are slidably abutted. When the installation rod (441) moves into the first clearance groove (761), the auxiliary rod (44) is driven to move toward the push rod (74).

6. The micro-tubular reaction device for preparing thiols according to claim 1, characterized in that: A blocking plate (45) for blocking the first through hole (11) is slidably arranged on the mounting tube (4), a fourth elastic member (452) is arranged between the blocking plate (45) and the mounting tube (4), the fourth elastic member (452) is used to drive the blocking plate (45) to slide to the first through hole (11), a connecting rod (451) is arranged on the blocking plate (45), a third guide ring (77) is arranged on the adjusting ring (7), a second clearance groove (771) is provided on the guide ring (77), the second clearance groove (771) includes a fourth inclined surface (772), the guide ring (77) rotates so that the connecting rod (451) abuts against the guide ring (77) through the fourth inclined surface (772), and when the connecting rod (451) abuts against the guide ring (77), the blocking plate (45) is separated from the first through hole (11).

7. The micro-tubular reaction device for preparing thiols according to claim 1, characterized in that: An opening (81) is provided on one side of the material frame (8) close to the card plate (5), a slide plate (82) is slidably provided at the opening (81), a fifth elastic member (83) connected to the slide plate (82) is provided on the material frame (8), the fifth elastic member (83) is used to drive the slide plate (82) to move and block the opening (81), a first rubber block (821) is provided on the slide plate (82), a second rubber block (53) is provided on the card plate (5), the card plate (5) slides through the rubber block (53) and the first rubber block (821) abutting against each other to drive the slide plate (82) to slide, after the card plate (5) moves to the push member (6), the first rubber block (821) and the second rubber block (53) are deformed and separated, and the catalyst sheet (3) enters the card plate (5) through the opening (81).

8. The micro-tubular reaction device for preparing thiols according to claim 7, characterized in that: A sixth elastic member (84) is provided in the material frame (8), the sixth elastic member (84) abuts against the catalyst sheet (3), and the sixth elastic member (84) is used to drive the catalyst sheet (3) to slide in a direction toward the outside of the material frame (8). A fifth inclined surface (822) is provided on the side of the slide plate (82), and the slide plate (82) slides through the fifth inclined surface (822) to push the catalyst sheet (3) at the opening (81) into the material frame (8).

9. The micro-tubular reaction device for preparing thiols according to claim 1, characterized in that: A drive assembly (9) is arranged on the mounting tube (4), the drive assembly (9) comprising a drive member (91) and a gear (92), the drive member (91) being arranged on the mounting tube (4), the gear (92) being arranged at the output end of the drive member (91), and a tooth groove (72) meshing with the gear (92) being provided on the outer side of the adjustment ring (7).

10. A process for preparing thiol, using the micro-tubular reaction device for preparing thiol according to any one of claims 1 to 9, characterized in that: The steps include: The high carbon olefins are transported in the material pipe 1 (1), and the hydrogen sulfide gas enters the material pipe 1 (1) through the material pipe 2 (2). The two are mixed in the material pipe 1 (1) and then pass through the catalyst sheet (3). The high carbon olefins and the hydrogen sulfide react to generate mercaptans under the action of the catalyst sheet (3).

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