CN114011343A

CN114011343A - Methyl mercaptan preparation equipment

Info

Publication number: CN114011343A
Application number: CN202111457801.7A
Authority: CN
Inventors: 姚建君
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-02-08

Abstract

The invention belongs to the field of methyl mercaptan production, and particularly relates to methyl mercaptan preparation equipment which comprises a bottom plate, wherein a support frame is fixedly arranged on the bottom plate, a tank body is supported on the support frame, a tank body cavity is formed in the tank body, a catalyst placing door for treating a catalyst is arranged on the side edge of the tank body, a heat carrier inlet pipe and a heat carrier outlet pipe for transmitting a heat carrier are further arranged on the outer wall of the tank body, a product outlet pipe is connected to the upper end of the tank body, a raw material inlet pipe is connected to the lower end of the tank body, a reaction module for chemical reaction and connected with the heat carrier inlet pipe is arranged in the tank body, a motion module is arranged below the reaction module, a safety module for responding to deflagration is arranged in the motion module, a plurality of dispersion modules are arranged above the motion module, a rotating module is arranged in the dispersion module, and the rotation of the dispersion modules provides power for the motion of the rotating module in the dispersion modules, the gas sensor is fixedly arranged in the tank body, so that raw material gas can uniformly react, and the safety of the reaction is ensured.

Description

Methyl mercaptan preparation equipment

Technical Field

The invention belongs to the field of production of methyl mercaptan, and particularly relates to methyl mercaptan preparation equipment.

Background

One class of non-aromatic compounds containing a mercapto-functional group (-SH) is mercaptans, all of which are liquids or solids except that methyl mercaptan is a gas at room temperature. Methyl mercaptan is the most common malodorous substance, has acid gas with the characteristics of flammability, explosiveness, high toxicity, high corrosivity and the like, is gas at normal temperature, is volatile and colorless, and is easy to liquefy gas or water white liquid with strong odor; has strong odor, mainly acts on central nervous system, can cause headache, nausea, etc. by inhaling low concentration methyl mercaptan vapor, and can stimulate skin, eyes and upper respiratory tract mucous membrane, and high concentration methyl mercaptan can inhibit central nervous system, resulting in respiratory paralysis and even death. They are very sensitive to methyl mercaptan gas because their threshold concentration in air is only 2.1X 10-6g/m 3. Because the methyl mercaptan belongs to the mercaptan organic matter with the minimum relative molecular mass and is very active, the methyl mercaptan is easy to react with other substances to form a sulfur-containing substance, and is a main raw material for synthesizing pesticides, medicines, foods, synthetic materials and the like. Therefore, the application of the methyl mercaptan is wider.

The following problems exist in the prior art:

firstly, the reaction between the raw materials and the catalyst is insufficient in the preparation process, the utilization rate of the catalyst at the edge is too low, and waste is easily caused.

Secondly, the raw material methanol hydrogen sulfide and the product methyl mercaptan are flammable and explosive gases, and no effective coping method exists in the existing equipment on the assumption that deflagration is generated in the equipment.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides methyl mercaptan preparation equipment which can ensure that raw material gas uniformly reacts and the reaction is safe.

In order to achieve the purpose, the invention adopts the following technical scheme:

a methyl mercaptan preparation device, which comprises a bottom plate, wherein a support frame is fixedly arranged on the bottom plate, a tank body is supported on the support frame, a tank body cavity is arranged in the tank body, a catalyst placing door for treating the catalyst is arranged on the side edge of the tank body, the outer wall of the tank body is also provided with a heat carrier inlet pipe and a heat carrier outlet pipe for transmitting a heat carrier, the upper end of the tank body is connected with a product outlet pipe, the lower end of the tank body is connected with a raw material inlet pipe, a reaction module which is connected with a heat carrier inlet pipe and is used for chemical reaction is arranged in the tank body, a motion module is arranged below the reaction module, a safety module used for dealing with deflagration is arranged in the motion module, a plurality of dispersion modules are arranged above the motion module, a rotating module is arranged in each dispersion module, the rotation of the dispersion module provides power for the movement of the rotary module in the dispersion module, and a gas sensor is fixedly arranged in the tank body.

Preferably, the reaction module includes that it sets firmly the big porcelain ball layer in the jar body to be in the outside, big porcelain ball layer is close to center one side and has set firmly well porcelain ball layer, well porcelain ball layer keeps away from big porcelain ball layer one side and has set firmly little porcelain ball layer, set firmly the catalyst between the little porcelain ball layer, be equipped with in the catalyst and advance the heat-carrying agent heating pipe that pipe, heat-carrying agent exit tube link to each other with the heat-carrying agent for heating.

Preferably, the motion module comprises a thread guide rail fixedly arranged on the inner wall of the tank body, an external thread block is rotatably arranged on the thread guide rail, the external thread block is engaged with the thread guide rail for transmission, a rotating body is fixedly arranged in the external thread block, a cavity for storing high-pressure flame retardant liquid is arranged in the middle of the rotating body, a sliding body which slides up and down in the tank body is arranged on the upper side of the rotating body, fire extinguishing agent is stored in the sliding body, the sliding body is covered with an explosion-proof impact plate, the rotating body is internally provided with a rotating body vent pipe, the sliding body is internally provided with a first telescopic pipe, a connecting rod is fixedly arranged on the explosion-proof impact plate, a guide chute is fixedly arranged at the other end of the connecting rod, a guide slide block is fixedly arranged on the inner wall of the tank body at the upper side of the connecting rod, the guide sliding groove slides on the guide sliding block, a stop block is arranged on the guide sliding block in a sliding mode, a stop block tension spring used for resetting the stop block and an electromagnetic sliding block used for pushing the stop block to slide are arranged between the stop block and the guide sliding block.

Preferably, the dispersion module comprises a square rod fixedly arranged on the connecting rod, a rotary sliding block is slidably arranged on the square rod, a threaded ring is fixedly arranged on the outer side of the rotary sliding block, a threaded sleeve is rotatably arranged on the outer side of the threaded ring, a hollow shell is fixedly arranged on the outer side of the threaded sleeve, an air outlet hole is formed in the upper end of the hollow shell, and a rotary sliding block reset spring is arranged between the rotary sliding block and the explosion-proof impact plate.

Preferably, the rotary module is including opening the air vent on rotating the slider, it has the execution piston chamber to rotate the interior division of slider, it is equipped with the execution piston to carry out the sliding of piston intracavity, the execution piston is close to air vent one side and has linked firmly the air vent blend stop of plugging up the air vent, it has last through-hole to carry out piston chamber upside and open, go up piston chamber UNICOM's piston chamber, it is equipped with the piston chamber to go up the sliding from top to bottom in the piston chamber, it has set firmly the last ejector pin that stretches out and rotates the slider to go up piston chamber upside, it has lower through-hole to carry out piston chamber downside division, the through-hole lets in down the piston intracavity, it is equipped with down the piston to slide in the piston chamber down, the piston is far away from down through-hole one side and has set firmly the lower ejector pin that stretches out and rotates the slider down.

Preferably, the safety module comprises a gas dispersing block fixedly arranged at the lower end of the tank body, the gas dispersing block is provided with a gas guide hole connected with a raw material gas inlet pipe, the gas dispersing block is fixedly provided with a blocking object storage pipe, the upper side of the blocking object storage pipe is provided with a second telescopic pipe which is telescopic and connected with a rotating body, the lower side of the explosion-proof impact plate is fixedly provided with an explosion-proof push rod, the explosion-proof push rod extends into the rotating body and is fixedly connected with an explosion-proof execution sliding block, the rotating body at the upper side of the second telescopic pipe is provided with a slide way, the explosion-proof execution sliding block can slide in the slide way, two sides of the explosion-proof execution sliding block are provided with flame-retardant stop blocks fixedly connected with the rotating body, the flame-retardant stop blocks are provided with stop block through holes, the explosion-proof execution sliding block is provided with sliding block through holes corresponding to the stop block through holes, the blocking object storage pipe is fixedly provided with a flame-retardant liquid guide pipe, the other end of the flame-retardant liquid guide pipe is introduced into the hollow cavity of the tank body, the inner product outlet pipe of the tank body cavity is provided with plugging slide blocks at two sides in a sliding manner, the plugging object storage pipe is internally provided with a push plate in a sliding manner, one side of the plugging object storage pipe, which is close to the raw material inlet pipe, is fixedly provided with a bearing plate, and a plugging object is arranged between the bearing plate and the push plate.

Has the advantages that:

1. utilize rotation module and dispersion module can be with gaseous raw materials quick evenly distributed to the catalyst downside, guaranteed that gaseous raw materials gets into each department reaction after the catalyst even, can not only react in the middle of, the marginal reaction produces extravagant condition too seldom.

2. The motion module in the invention can further act on each component to automatically block and feed, and stop the reaction.

3. The safety module can prevent gas or generated flame from leaking outwards, and can prevent the gas from continuously entering and prevent the possibly generated flame from reversely rolling back to cause larger damage.

Drawings

FIG. 1 is a perspective view of a solid of the present invention

FIG. 2 is a top view of the present invention

FIG. 3 is a sectional view taken along line A-A in FIG. 2

FIG. 4 is a sectional view taken along line B-B of FIG. 3

FIG. 5 is a partial enlarged view of the portion C in FIG. 3

FIG. 6 is a partial enlarged view of the portion D in FIG. 3

FIG. 7 is a partial enlarged view of E in FIG. 3

FIG. 8 is a partial enlarged view of the portion F in FIG. 6

In the figure: 12. a base plate; 13. a support frame; 14. a tank body; 15. a heat carrier inlet pipe; 16. a heat carrier outlet pipe; 17. a catalyst placement door; 18. a raw material inlet pipe; 19. a product outlet pipe; 20. a tank body cavity; 21. a reaction module; 22. a dispersion module; 23. a rotation module; 24. a security module; 25. a motion module; 26. a large ceramic ball layer; 27. a medium ceramic ball layer; 28. a small ceramic ball layer; 29. a catalyst; 30. a heat carrier heating pipe; 31. a first telescopic tube; 32. a hollow shell; 33. a threaded sleeve; 34. a square bar; 35. rotating the slide block; 36. a threaded ring; 37. rotating the slider return spring; 38. an air outlet; 39. a connecting rod; 40. a guide chute; 41. a guide slider; 42. a stopper; 43. a baffle plate tension spring; 44. an electromagnetic slider; 45. a rotating body; 46. an external thread block; 47. a threaded guide rail; 48. a sliding body; 49. an explosion-proof impact plate; 50. a gas dispersion block; 51. an air vent; 52. a vent hole; 53. a vent hole barrier strip; 54. an actuator piston; 55. an actuator piston chamber; 56. an upper through hole; 57. an upper piston chamber; 58. an upper piston chamber; 59. an ejector rod is arranged; 60. a lower through hole; 61. a lower piston; 62. a lower ejector rod; 63. a lower piston chamber; 64. a gas sensor; 65. plugging the sliding block; 66. a rotor breather pipe; 67. an explosion-proof push rod; 68. an explosion-proof execution slide block; 69. a slider through hole; 70. a flame-retardant stop block; 71. a through hole of the stop block; 72. a second telescopic tube; 73. a blockage storage tube; 74. a flame retardant liquid conduit; 75. pushing the plate; 76. a stopper; 77. a bearing plate.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Referring to the attached drawings 1-8, a methyl mercaptan preparation device comprises a bottom plate 12, a support frame 13 is fixedly arranged on the bottom plate 12, a tank 14 is supported on the support frame 13, a tank cavity 20 is arranged in the tank 14, a catalyst placing door 17 for treating a catalyst is arranged on the side of the tank 14, a heat carrier inlet pipe 15 and a heat carrier outlet pipe 16 for transmitting a heat carrier are further arranged on the outer wall of the tank 14, a product outlet pipe 19 is connected to the upper end of the tank 14, a raw material inlet pipe 18 is connected to the lower end of the tank 14, a reaction module 21 for chemical reaction connected with the heat carrier inlet pipe 15 is arranged in the tank 14, a motion module 25 is arranged below the reaction module 21, a safety module 24 for responding detonation is arranged in the motion module 25, a plurality of dispersion modules 22 are arranged above the motion module 25, a rotation module 23 is arranged in the dispersion modules 22, the rotation of the dispersion modules 22 provides power for the motion of the rotation module 23 in the dispersion modules 22, a gas sensor 64 is fixedly arranged in the tank 14.

Further, the reaction module 21 includes a large ceramic ball layer 26 fixedly disposed in the tank 14 at the outermost side, a middle ceramic ball layer 27 is fixedly disposed at one side of the large ceramic ball layer 26 close to the center, a small ceramic ball layer 28 is fixedly disposed at one side of the middle ceramic ball layer 27 far from the large ceramic ball layer 26, a catalyst 29 is fixedly disposed between the small ceramic ball layers 28, and a heat carrier heating pipe 30 connected to the heat carrier inlet pipe 15 and the heat carrier outlet pipe 16 is disposed in the catalyst 29 for heating.

Further, the motion module 25 comprises a thread guide rail 47 fixedly arranged on the inner wall of the tank 14, an external thread block 46 is rotatably arranged on the thread guide rail 47, the external thread block 46 is in meshing transmission with the thread guide rail 47, a rotor 45 is fixedly arranged in the external thread block 46, a cavity for storing high-pressure flame retardant liquid is formed in the middle of the rotor 45, a sliding body 48 which slides up and down in the tank 14 is arranged on the upper side of the rotor 45, fire extinguishing agent is stored in the sliding body 48, an explosion-proof impact plate 49 is covered on the sliding body 48, a rotor vent pipe 66 is arranged in the rotor 45, a first telescopic pipe 31 is arranged in the sliding body 48, a connecting rod 39 is fixedly arranged on the explosion-proof impact plate 49, a guide chute 40 is fixedly arranged at the other end of the connecting rod 39, a guide slide block 41 is fixedly arranged on the inner wall of the tank 14 on the upper side of the connecting rod 39, the guide chute 40 slides on the guide slide block 41, a stop block 42 is slidably arranged on the guide slide block 41, and a tension spring 43 for resetting the stop block 42 and an electromagnetic slide block 44 for pushing the stop block 42 to slide are arranged between the stop block 41 .

Further, dispersion module 22 is including setting firmly square bar 34 on connecting rod 39, and square bar 34 goes up the slip and is equipped with and rotates slider 35, rotates the slider 35 outside and sets firmly threaded ring 36, and the threaded ring 36 outside rotates and is equipped with thread bush 33, and the threaded bush 33 outside sets firmly hollow casing 32, and hollow casing 32 upper end is opened has venthole 38, rotates and is equipped with between slider 35 and the explosion-proof impact plate 49 and rotates slider reset spring 37.

Furthermore, the rotating module 23 includes a vent hole 52 formed in the rotating slider 35, an execution piston cavity 55 is formed in the rotating slider 35, an execution piston 54 is slidably disposed in the execution piston cavity 55, a vent hole barrier 53 for blocking the vent hole 52 is fixedly connected to one side of the execution piston 54 close to the vent hole 52, an upper through hole 56 is formed in the upper side of the execution piston cavity 55, the upper through hole 56 is communicated with the upper piston cavity 57, an upper piston cavity 58 is vertically slidably disposed in the upper piston cavity 57, an upper ejector rod 59 extending out of the rotating slider 35 is fixedly disposed on the upper side of the upper piston cavity 58, a lower through hole 60 is formed in the lower side of the execution piston cavity 55, the lower through hole 60 is introduced into a lower piston cavity 63, a lower piston 61 is slidably disposed in the lower piston cavity 63, and a lower ejector rod 62 extending out of the rotating slider 35 is fixedly disposed on one side of the lower piston 61 far away from the lower through hole 60.

Further, the safety module 24 comprises a gas dispersing block 50 fixedly arranged at the lower end of the tank 14, a gas vent 51 connected with the raw material inlet pipe 18 is arranged on the gas dispersing block 50, a blocking object storage pipe 73 is fixedly arranged on the gas dispersing block 50, a second telescopic pipe 72 which is telescopic and connected with the rotating body 45 is arranged at the upper side of the blocking object storage pipe 73, an explosion-proof push rod 67 is fixedly arranged at the lower side of the explosion-proof impact plate 49, the explosion-proof push rod 67 extends into the rotating body 45 and is fixedly connected with an explosion-proof execution slide block 68, a slide way is arranged on the rotating body 45 at the upper side of the second telescopic pipe 72, the explosion-proof execution slide block 68 can slide in the slide way, flame-retardant stoppers 70 fixedly connected on the rotating body 45 are arranged at two sides of the explosion-proof execution slide block 68, stopper through holes 71 are arranged on the flame-retardant stoppers 70, slider through holes 69 corresponding to the stopper through holes 71 are arranged on the explosion-proof execution slide block 68, a flame-retardant liquid guide pipe 74 is fixedly arranged on the blocking object storage pipe 73, the other end of the flame retardant liquid conduit 74 is introduced into the tank cavity 20, the blocking slide blocks 65 are arranged at two sides of the product outlet pipe 19 in the tank cavity 20 in a sliding manner, the push plate 75 is arranged in the blocking object storage pipe 73 in a sliding manner, the supporting plate 77 is fixedly arranged at one side, close to the raw material inlet pipe 18, in the blocking object storage pipe 73, and the blocking object 76 is arranged between the supporting plate 77 and the push plate 75.

Principle of operation

Opening a catalyst placing door 17 to place a catalyst 29, starting an electromagnetic slide block 44 to eject a stopper 42 due to the fact that the catalyst 29 is in a fixed position due to the layer-by-layer blocking of a large ceramic ball layer 26, a middle ceramic ball layer 27 and a small ceramic ball layer 28, enabling a heat carrier to flow into a heat carrier inlet pipe 15 after starting the device, enabling the heat carrier to flow into a heat carrier heating pipe 30 through the heat carrier inlet pipe 15, enabling the heat carrier to flow out through a heat carrier outlet pipe 16 finally, heating the catalyst 29 through the heat carrier heat in the heat carrier heating pipe 30 to enable the catalyst 29 to reach a reaction temperature, introducing raw material gas through a raw material inlet pipe 18, enabling the gas to flow into a tank body 14 through a gas guide hole 51, pushing a rotating body 45 to move upwards and rotate, pushing a rotating body 45 to move, enabling the sliding body 48 to drive an anti-explosion impact plate 49 to push a connecting rod 39, enabling the connecting rod 39 to push a guide chute 40 to slide along a guide slide block 41 until the connecting rod 39 is stopped by the stopper 42, at this time, a rotator vent pipe 66 in the rotator 45 is communicated with the first telescopic pipe 31 in the sliding body 48, raw material gas starts to enter the hollow shell 32 to push the rotating slide block 35 to slide upwards along the square rod 34, the rotating slide block 35 drives the threaded ring 36 to slide, the threaded ring 36 drives the threaded sleeve 33 to rotate, the threaded sleeve 33 drives the hollow shell 32 to rotate, the rotating slide block 35 elongates the rotating slide block return spring 37, when the rotating slide block 35 moves to the top end inside the hollow shell 32, the hollow shell 32 pushes the upper ejector rod 59, the upper ejector rod 59 pushes the upper piston cavity 58, the upper piston cavity 58 pushes hydraulic oil in the upper piston cavity 57 into the execution piston cavity 55, the execution piston 54 pushes the execution piston 54 to move, the execution piston 54 drives the vent hole blocking strip 53 to move, so that the vent hole 52 is communicated up and down, gas raw materials can enter the vent hole 38 through the vent hole 52, and after the vent hole blocking strip 53 is removed, the rotating slide block 35 is pulled back by the rotating slide block return spring 37 to drive the threaded sleeve 33 and the hollow shell 32 to rotate reversely, and finally, the gas raw material is uniformly thrown out from the gas outlet 38, so that the gas raw material is ensured to be uniformly reacted at all positions after entering the catalyst 29, the reaction cannot be carried out only in the middle, and the waste condition is caused by too little edge reaction.

When the gas sensor 64 detects that the gas concentration is abnormal or the gas composition is abnormal and the reaction is wrong, the electromagnetic slider 44 is powered off, the stopper 42 is pulled back by the stopper tension spring 43, the rotating body 45 and the sliding body 48 continue to move upwards, at the moment, the rotating body 45 continues to rotate, the rotating body vent pipe 66 and the first telescopic pipe 31 are not communicated in a staggered mode, the reaction is stopped, because the raw material methanol hydrogen sulfide and the product methyl mercaptan are flammable and explosive gases, if deflagration is generated in the equipment, the shock wave generated by the deflagration can quickly downwards jointly form the explosion-proof impact plate 49, the fire extinguishing agent in the sliding body 48 is extruded by the edge of the explosion-proof impact plate 49 and is sprayed upwards to interrupt the reaction, meanwhile, the explosion-proof impact plate 49 pushes the explosion-proof push rod 67 to downwards move, the explosion-proof execution slider 68 is pushed by the explosion-proof push rod 67 to downwards, and the slider through hole 69 on the explosion-proof execution slider 68 is aligned with the stopper through hole 71 on the flame-proof stopper 70, the high-pressure flame retardant liquid in the rotating body 45 flows into the explosion-proof execution slide block 68, the flame retardant liquid is introduced into the tank body cavity 20 through the second extension pipe 72 and the flame retardant liquid guide pipe 74, damage caused when the whole equipment explodes is reduced, the tank body cavity 20 pushes the plugging slide block 65 to seal the product gas outlet pipe 19, gas or generated flame is prevented from leaking outwards, the flame retardant liquid can also push the push plate 75 to move downwards, the push plate 75 pushes the plugging object 76, the plugging object 76 pushes the supporting plate 77 to seal the communication position of the gas guide hole 51 and the raw material gas inlet pipe 18, gas is prevented from continuously entering, and meanwhile, the possibly generated flame is prevented from reversely rolling back, and larger damage is caused.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a methyl mercaptan prepares equipment, includes bottom plate (12), its characterized in that, support frame (13) have set firmly on bottom plate (12), it has jar body (14) to support on support frame (13), jar internal division has a jar body cavity (20) in (14), jar body (14) side is opened has catalyst that is used for handling the catalyst and is placed door (17), still be equipped with heat-carrying agent that is used for transmitting the heat-carrying agent and advance pipe (15) and heat-carrying agent exit tube (16) on jar body (14), the termination has product outlet duct (19) on jar body (14), the termination has raw materials intake pipe (18) under jar body (14), be equipped with in jar body (14) and advance pipe (15) with the heat-carrying agent and link to each other be used for chemical reaction's reaction module (21), reaction module (21) below is equipped with motion module (25), be equipped with in motion module (25) and be used for dealing with safety module (24) that deflagration, the improved dispersion tank is characterized in that a plurality of dispersion modules (22) are arranged above the movement module (25), rotary modules (23) are arranged in the dispersion modules (22), the rotation of the dispersion modules (22) provides power for the movement of the rotary modules (23) in the dispersion modules (22), and gas sensors (64) are fixedly arranged in the tank body (14).

2. The methyl mercaptan preparation equipment according to claim 1, wherein the reaction module (21) comprises a large ceramic ball layer (26) which is arranged at the outermost side and fixedly arranged in the tank body (14), a middle ceramic ball layer (27) is fixedly arranged on one side, close to the center, of the large ceramic ball layer (26), a small ceramic ball layer (28) is fixedly arranged on one side, away from the large ceramic ball layer (26), of the middle ceramic ball layer (27), a catalyst (29) is fixedly arranged between the small ceramic ball layers (28), and a heat carrier heating pipe (30) which is used for heating and is connected with a heat carrier inlet pipe (15) and a heat carrier outlet pipe (16) is arranged in the catalyst (29).

3. The methyl mercaptan preparing equipment according to claim 2, wherein the moving module (25) comprises a thread guide rail (47) fixedly arranged on the inner wall of the tank body (14), an external thread block (46) is rotatably arranged on the thread guide rail (47), the external thread block (46) is meshed with the thread guide rail (47) for transmission, a rotating body (45) is fixedly arranged in the external thread block (46), a cavity for storing high-pressure flame retardant liquid is formed in the middle of the rotating body (45), a sliding body (48) which slides up and down in the tank body (14) is arranged on the upper side of the rotating body (45), a fire extinguishing agent is stored in the sliding body (48), an explosion-proof impact plate (49) is covered on the sliding body (48), a rotating body vent pipe (66) is arranged in the rotating body (45), a first expansion pipe (31) is arranged in the sliding body (48), and a connecting rod (39) is fixedly arranged on the explosion-proof impact plate (49), the utility model discloses a lead the slider (41), connecting rod (39) other end has set firmly spout (40), the jar body (14) inner wall of connecting rod (39) upside has set firmly and has led slider (41), spout (40) slide on leading slider (41), it is equipped with dog (42) to slide on leading slider (41), be equipped with between dog (42) and the slider (41) and be used for the dog extension spring (43) that resets for dog (42) and promote gliding electromagnetism slider (44) of dog (42).

4. A methyl mercaptan preparing equipment according to claim 3, characterized in that the dispersion module (22) comprises a square bar (34) fixed on a connecting bar (39), a rotary slide block (35) is arranged on the square bar (34) in a sliding manner, a threaded ring (36) is fixed on the outer side of the rotary slide block (35), a threaded sleeve (33) is arranged on the outer side of the threaded ring (36) in a rotating manner, a hollow shell (32) is fixed on the outer side of the threaded sleeve (33), an air outlet hole (38) is formed in the upper end of the hollow shell (32), and a rotary slide block return spring (37) is arranged between the rotary slide block (35) and the explosion-proof impact plate (49).

5. The methyl mercaptan preparation device according to claim 4, wherein the rotary module (23) comprises a vent hole (52) formed in the rotary slide block (35), an execution piston cavity (55) is formed in the rotary slide block (35), an execution piston (54) is arranged in the execution piston cavity (55) in a sliding manner, a vent hole blocking strip (53) for blocking the vent hole (52) is fixedly connected to one side, close to the vent hole (52), of the execution piston (54), an upper through hole (56) is formed in the upper side of the execution piston cavity (55), the upper through hole (56) is communicated with the upper piston cavity (57), an upper piston cavity (58) is arranged in the upper piston cavity (57) in a sliding manner, an upper ejector rod (59) extending out of the rotary slide block (35) is fixedly arranged on the upper side of the upper piston cavity (58), a lower through hole (60) is formed in the lower side of the execution piston cavity (55), and the lower through hole (60) is communicated with the lower piston cavity (63), a lower piston (61) is arranged in the lower piston cavity (63) in a sliding mode, and a lower ejector rod (62) extending out of the rotating slide block (35) is fixedly arranged on one side, away from the lower through hole (60), of the lower piston (61).

6. A methyl mercaptan preparation device according to claim 5, characterized in that the safety module (24) comprises a gas dispersion block (50) fixedly arranged at the lower end of the tank body (14), the gas dispersion block (50) is provided with a gas guide hole (51) connected with the raw material gas inlet pipe (18), the gas dispersion block (50) is fixedly provided with a blocking object storage pipe (73), the upper side of the blocking object storage pipe (73) is provided with a second telescopic pipe (72) which is telescopic and connected with the rotating body (45), the lower side of the explosion-proof impact plate (49) is fixedly provided with an explosion-proof push rod (67), the explosion-proof push rod (67) extends into the rotating body (45) and is fixedly connected with an explosion-proof execution slide block (68), the rotating body (45) at the upper side of the second telescopic pipe (72) is provided with a slide way, the execution slide block (68) can slide in the slide way, the two sides of the explosion-proof execution slide block (68) are provided with flame-retardant stop blocks (70) fixedly connected with the rotating body (45), the anti-explosion tank is characterized in that a block through hole (71) is formed in the anti-flaming block (70), a block through hole (69) corresponding to the block through hole (71) is formed in the anti-explosion executing slide block (68), a flame-retardant liquid guide pipe (74) is fixedly arranged on the blocking object storage pipe (73), the other end of the flame-retardant liquid guide pipe (74) is introduced into the tank cavity (20), blocking slide blocks (65) are slidably arranged on two sides of the product air outlet pipe (19) in the tank cavity (20), a push plate (75) is slidably arranged in the blocking object storage pipe (73), a bearing plate (77) is fixedly arranged on one side, close to the raw material air inlet pipe (18), in the blocking object storage pipe (73), and a blocking object (76) is arranged between the bearing plate (77) and the push plate (75).