CN112011360A

CN112011360A - Desulphurization unit is used in naphtha production

Info

Publication number: CN112011360A
Application number: CN202011114832.8A
Authority: CN
Inventors: 马海峰; 王旭华; 齐世森; 石允起; 刘春堂; 李珍光
Original assignee: Dongying Lianhe Petrochemical Co ltd
Current assignee: Dongying Lianhe Petrochemical Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2020-12-01
Anticipated expiration: 2040-10-19
Also published as: CN112011360B

Abstract

The utility model provides a desulphurization unit is used in naphtha production, including two desulfurization casees, the control box be located between two desulfurization casees and with desulfurization case fixed connection, two first through-holes are seted up respectively to control box both sides inner wall, two second through-holes are seted up respectively to two desulfurization case's opposite side inner wall, two standing grooves are seted up respectively to two mutually opposite sides of desulfurization case, the slot is seted up respectively to the upper and lower both ends inner wall of every standing groove, two rectangular grooves are seted up respectively to both ends inner wall around the control box, the both sides inner wall that is located the rectangular groove at rear is movable mounting screw rod respectively. The completion is to the change of desulfurization board, and the desulfurization board in the back control box resumes adsorption efficiency under the drive of activated gas, and repetitive operation can the spaced carries out the activation to the desulfurization board and resumes the processing, does not influence the desulfurization operation of liquid simultaneously yet to also can control whether liquid needs the stirring as required, and two desulfurization casees desulfurization operation simultaneously, improvement production efficiency.

Description

Desulphurization unit is used in naphtha production

Technical Field

The invention belongs to the technical field of naphtha desulfurization equipment, and particularly relates to a desulfurization device for naphtha production.

Background

Naphtha is a product of primary processing and secondary processing of crude oil, and is a raw material for producing olefin, aromatic hydrocarbon and gasoline. Naphtha produced in either atmospheric or vacuum units, as well as in hydrocracking, catalytic cracking, and delayed coking units, contains a very high concentration of sulfur. As a downstream raw material, the sulfur content in naphtha is reduced, so that a desulfurization device with a backflow prevention function for naphtha production is designed.

Disclosure of Invention

The invention provides a desulfurization device for naphtha production, which is used for overcoming the defects in the prior art.

The invention is realized by the following technical scheme:

a desulphurization device for naphtha production comprises two desulphurization boxes and a control box, wherein the control box is positioned between the two desulphurization boxes and fixedly connected with the desulphurization boxes, the inner walls of the two sides of the control box are respectively provided with two first through holes, the inner walls of the two opposite sides of the two desulphurization boxes are respectively provided with two second through holes, the opposite sides of the two desulphurization boxes are respectively provided with two placing grooves, the inner walls of the upper end and the lower end of each placing groove are respectively provided with a slot, the inner walls of the front end and the rear end of the control box are respectively provided with two long grooves, the inner walls of the two sides of the long groove positioned at the rear end are respectively and movably provided with a screw rod, the screw threads of the two screw rods positioned in the same long groove are opposite, the opposite ends of the two screw rods positioned in the same long groove are fixedly connected through a connecting block, the periphery of the connecting block is fixedly provided with a first, the rear end of the sliding block and the front end of the nut are respectively fixedly provided with a connecting rod, one side of the front connecting rod and one side of the rear connecting rod which are positioned on the same horizontal plane are fixedly connected through a connecting plate, the two connecting plates which are positioned on the same horizontal plane are parallel to each other, the height of the connecting plate is greater than the diameter of the first through hole, the back ends of the two connecting plates which are positioned on the same horizontal plane are respectively fixedly provided with a doctor board, the back ends of the two doctor boards which are positioned on the same horizontal plane are respectively fixedly provided with a C-shaped plate, the C-shaped plate can be inserted into a corresponding placing groove, two inserting plates are arranged in the groove of the C-shaped plate in a matching way, an adjusting device for controlling the movement of the two inserting plates is arranged in the groove in a matching way, the inserting plates can be inserted into the inserting grooves, the inner walls on the two, the two ends of the connecting shaft are respectively positioned in the two desulfurization boxes, a plurality of stirring rods are fixedly arranged on the periphery of part of the connecting shaft positioned in the desulfurization boxes, a third bevel gear is fixedly arranged on the periphery of the middle part of the connecting shaft, a power device is arranged on the inner wall of the rear end of the control box in a matched mode, the power device can control the third bevel gear and the first bevel gear to rotate, the top of the desulfurization box is connected with a discharge control device, the bottom of the desulfurization box is connected with a discharge pipe with a valve, and the upper end and the lower end of the control box are respectively.

As above a desulphurization unit is used in naphtha production with anti-return function, adjusting device by through bearing installation and C template recess inner wall even piece, waterproof motor, fourth bevel gear, fifth bevel gear, two lead screws that the screw thread is opposite, two nuts are constituteed, outer loop outer wall one side of bearing and the recess inner wall fixed connection of C template, fourth bevel gear fixed mounting is in even piece periphery, waterproof motor installs on the recess inner wall of C template, fifth bevel gear installs in the output shaft tip of waterproof motor, fifth bevel gear can cooperate with the meshing of fourth bevel gear, two lead screws are located even upper and lower both ends of piece respectively and with even piece fixed connection, lead screw and nut screw-thread fit, one side fixed connection of every nut and a picture peg.

The desulfurization device for naphtha production comprises a forward and reverse rotation motor, a horizontal first telescopic rod, a vertical second telescopic rod, a sixth bevel gear, a seventh bevel gear, an eighth bevel gear and a transmission device, wherein the forward and reverse rotation motor is arranged on the inner wall of the rear end of a control box, the rear end of the first telescopic rod is fixedly connected with the front end of an output shaft of the forward and reverse rotation motor, the sixth bevel gear is arranged on a sleeve rod of the first telescopic rod, a bearing is arranged on the periphery of the sleeve rod of the second telescopic rod in a matching way, the rear end of the outer ring outer wall of the bearing is fixedly connected with the inner wall of the rear end of the control box through a fixing block, the seventh bevel gear is arranged at the top end of the second telescopic rod, the seventh bevel gear can be matched with the sixth bevel gear in a meshing way, the eighth bevel gear is arranged at the bottom end of the second telescopic rod, the eighth bevel gear can be matched with the first, the cross-shaped insert block can be matched with a transmission device, and the transmission device can be matched with the third bevel gear.

As above-mentioned desulphurization unit is used in naphtha production, transmission device constitute by two horizon bars, the pivot, ninth bevel gear, the periphery cooperation of pivot is equipped with the bearing, the bearing be located between two horizon bars and with the looks remote site fixed connection of horizon bar, the back of the body end of two horizon bars respectively with the both sides inner wall fixed connection of control box, ninth bevel gear is installed in the front end of pivot, ninth bevel gear can cooperate with the meshing of third bevel gear, the cross slot is seted up to the rear end of pivot, the cross inserted block can insert to the cross slot in.

The invention has the advantages that: discharging liquid into a desulfurization box through a discharge control device, wherein a desulfurization plate is arranged in the desulfurization box at the moment, for example, the lowest desulfurization plate is positioned in the desulfurization box at the moment, a power device controls a third bevel gear to rotate to drive a connecting shaft to rotate, the connecting shaft drives a stirring rod to rotate to stir the liquid in the desulfurization box, so that the liquid can be in better contact with the desulfurization plate to remove and adsorb sulfur in the liquid, the adsorption capacity of the desulfurization plate is weakened after a period of time, at the moment, an adjusting device works to retract a plug board into a groove of a C-shaped plate, and the power device controls a first bevel gear at the lowest part to work to drive two screw rods in a long groove at the lower part to rotate, the screw rods are in threaded fit with nuts, the nuts are connected with connecting plates through connecting rods to drive two connecting plates at the lowest part to move relatively, so that the desulfurization plate and the C-shaped plate are retracted into the control box, then, the adjusting device works again to push the two inserting plates to opposite directions to shield the first through hole and prevent liquid from entering the control box, then the power device starts to control the first bevel gear above to work to drive the two screws in the upper long groove to rotate, meanwhile, the adjusting device in the upper C-shaped plate works to retract the two inserting plates to the groove in the C-shaped plate, so that the inserting plates and the C-shaped plate pass through the first through hole and the second through hole and are driven by the two screws with opposite threads, the two connecting plates move to opposite directions to enable the C-shaped plate to be inserted into the placing groove and to be contacted with the inner wall of the control box, the adjusting device works to push the two inserting plates to opposite directions to enable the inserting plates to be inserted into the slots to complete the replacement of the desulfurization plates, and the desulfurization plates moving back into the control box recover the adsorption capacity under the driving of activated gas, repeated operation can the spaced carry out the activation to the desulfurization board and resume the processing, does not influence the desulfurization operation of liquid simultaneously yet to also can control whether liquid needs the stirring as required, and two desulfurization case desulfurization operations simultaneously improve production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1; FIG. 3 is an enlarged view of view B of FIG. 1; FIG. 4 is an enlarged partial view of I of FIG. 2; FIG. 5 is an enlarged view of view C of FIG. 4; fig. 6 is a partial enlarged view of II of fig. 3.

Reference numerals: 1 the first through hole 4, the second through hole 5, the slot 6, the long groove 7, the screw 8, the first bevel gear 9, the slide block 10, the connecting plate 12, the doctor plate 13, the placing groove 14, the C-shaped plate 15, the inserting plate 16, the third through hole 17, the connecting shaft 18, the stirring rod 19, the fourth bevel gear 20, the fifth bevel gear 22, the screw 23, the first telescopic rod 24, the second telescopic rod 25, the seventh bevel gear 26, the eighth bevel gear 27, the cross-shaped inserting block 29, the horizontal rod 30, the rotating shaft 31 and the ninth bevel gear 32 cross-shaped slot of the control box 3 and the desulfurization.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A desulphurization device for naphtha production comprises two desulphurization boxes 1 and a control box 2, wherein the control box 2 is positioned between the two desulphurization boxes 1 and is fixedly connected with the desulphurization boxes 1, the inner walls of the two sides of the control box 2 are respectively provided with two first through holes 3, the two first through holes 3 positioned on the same side of the control box 2 are arranged up and down, the inner walls of the two opposite sides of the two desulphurization boxes 1 are respectively provided with two second through holes 4, the two second through holes 4 positioned in the same desulphurization box 1 are arranged up and down, the second through holes 4 and the corresponding first through holes 3 are positioned on the same horizontal plane and are communicated with each other inside, the opposite sides of the two desulphurization boxes 1 are respectively provided with two placing grooves 13, the two placing grooves 13 positioned in the same desulphurization box 1 are arranged up and down, one placing groove 13 and the corresponding second through hole 4 are positioned on the same horizontal plane, the inner walls of the upper end and the lower end of each placing groove 13 are respectively, two long grooves 6 are respectively arranged on the inner walls of the front end and the rear end of the control box 2, the two long grooves 6 positioned on the same end surface of the control box 2 are arranged up and down and positioned below the control box 2, screw rods 7 are respectively and movably arranged on the inner walls of the two sides of the long groove 6 positioned at the rear end, the screw threads of the two screw rods 7 positioned in the same long groove 6 are opposite, the opposite ends of the two screw rods 7 positioned in the same long groove 6 are fixedly connected through a connecting block, a first bevel gear 8 is fixedly arranged on the periphery of the connecting block, the front end part of the first bevel gear 8 is positioned in front of the long groove 6, a nut is arranged on each screw rod 7 in a matching way, two sliding blocks 9 are arranged in the long groove 6 positioned in front in a matching way, connecting rods 10 are respectively and fixedly arranged at the rear ends of the sliding blocks 9 and the front ends of the nuts, and, two connecting plates 11 on the same horizontal plane are parallel to each other, the height of the connecting plates 11 is larger than the diameter of the first through hole 3, the back ends of the two connecting plates 11 on the same horizontal plane are respectively and fixedly provided with a desulphurization plate 12, the back ends of the two desulphurization plates 12 on the same horizontal plane are respectively and fixedly provided with a C-shaped plate 14, the C-shaped plates 14 can be inserted into a corresponding placing groove 13, the grooves of the C-shaped plates 14 are back to back, two inserting plates 15 are arranged in the grooves of the C-shaped plates 14 in a matched manner, an adjusting device for controlling the movement of the two inserting plates 15 is arranged in the grooves of the C-shaped plates 14 in a matched manner, the inserting plates 15 can be inserted into the slots 5, when the inserting plates 15 are retracted into the grooves in the C-shaped plates 14, third through holes 16 can be respectively formed on the inner walls on the two sides of the control box 2 through the second through holes 4 and the first through, the connecting shaft 17 is positioned above the inside of the control box 2, two ends of the connecting shaft 17 are respectively positioned in the two desulfurization boxes 1, the connecting shaft 17 is connected with the third through hole 16 through a sealing bearing, namely, the periphery of the connecting shaft 17 is fixedly connected with the inner wall of the inner ring of the sealing bearing, the outer ring outer wall of the sealing bearing is fixedly connected with the inner wall of the third through hole 16, a plurality of stirring rods 18 are fixedly arranged on the periphery of part of the connecting shaft 17 positioned in the desulfurization boxes 1, a third bevel gear 19 is fixedly arranged on the periphery of the middle part of the connecting shaft 17, a power device is arranged on the inner wall of the rear end of the control box 2 in a matching way, the power device can control the third bevel gear 19 and the first bevel gear 8 to rotate, the top of the desulfurization boxes 1 is connected with a discharge control device, the bottom end of the desulfurization boxes 1 is connected with a discharge pipe with a valve, the lower connecting pipe discharges the activated gas. Discharging liquid into the desulfurization box 1 through a discharge control device, wherein a desulfurization plate 12 is arranged in the desulfurization box 1 at the moment, for example, the lowermost desulfurization plate 12 is positioned in the desulfurization box 1 at the moment, a power device controls a third bevel gear 19 to rotate to drive a connecting shaft 17 to rotate, the connecting shaft 17 drives a stirring rod 18 to rotate, so that the liquid in the desulfurization box 1 is stirred, the liquid can be in better contact with the desulfurization plate 12 to remove and adsorb sulfur in the liquid, the adsorption capacity of the desulfurization plate 12 is weakened after a period of time, at the moment, an adjusting device works to retract the inserting plate 15 into a groove of the C-shaped plate 14, the power device controls a first bevel gear 8 at the lowermost part to work to drive two screw rods 7 in the long groove 6 at the lower part to rotate, the screw rods 7 are in threaded fit with nuts, and the nuts are connected with the connecting plates 11 through connecting rods 10 to drive the two connecting plates 11 at the lowermost part to move relatively, the desulphurization plate 12 and the C-shaped plate 14 are retracted into the control box 2, then the adjusting device works again, the two inserting plates 15 are pushed in the opposite directions to shield the first through hole 3 to prevent liquid from entering the control box 2, then the power device starts to control the first bevel gear 8 above to work to drive the two screw rods 7 in the strip groove 6 above to rotate, meanwhile, the adjusting device in the C-shaped plate 14 above works to shrink the two inserting plates 15 into the groove in the C-shaped plate 14, so that the inserting plates 15 and the C-shaped plate 14 pass through the first through hole 3 and the second through hole 4 and are driven by the two screw rods 7 with opposite threads, the two connecting plates 11 move in the opposite directions to enable the C-shaped plate 14 to be inserted into the placing groove 13, the connecting plates 11 are contacted with the inner wall of the control box 2, the adjusting device works to push the two inserting plates 15 in the opposite directions to enable the inserting plates 15 to be inserted into the slots 5, the desulfurization plates 12 are replaced, the desulfurization plates 12 moving back into the control box 2 are driven by activated gas to recover adsorption capacity, repeated operation can be performed, the desulfurization plates 12 can be activated at intervals to recover treatment, the desulfurization operation of liquid is not influenced, whether the liquid needs to be stirred or not can be controlled according to needs, and the two desulfurization boxes 1 are simultaneously subjected to desulfurization operation, so that the production efficiency is improved.

Specifically, the adjusting device described in this embodiment is composed of a connecting block installed on the inner wall of the groove of the C-shaped plate 14 through a bearing, a waterproof motor, a fourth bevel gear 20, a fifth bevel gear 21, two lead screws 22 with opposite threads, and two nuts, wherein one side of the outer wall of the outer ring of the bearing is fixedly connected with the inner wall of the groove of the C-shaped plate 14, the fourth bevel gear 20 is fixedly installed on the periphery of the connecting block, the waterproof motor is installed on the inner wall of the groove of the C-shaped plate 14, the fifth bevel gear 21 is installed on the end portion of an output shaft of the waterproof motor, the fifth bevel gear 21 can be engaged with the fourth bevel gear 20, the two lead screws 22 are respectively located at the upper end and the lower end of the connecting block and are fixedly connected with the connecting block. When the plug boards 15 and the C-shaped boards 14 pass through the first through holes 3 and the second through holes 4 and are inserted into the placing grooves 13, the waterproof motor rotates reversely, so that the two plug boards 15 move in opposite directions, the plug boards 15 are inserted into the inserting grooves 5, the separation boards 112 are limited, the desulfurization boards 12 are prevented from shaking, and the desulfurization boards 12 are more stable in use.

Specifically, the power device described in this embodiment includes a forward and reverse rotation motor, a horizontal first telescopic rod 23, a vertical second telescopic rod 24, a sixth bevel gear 25, a seventh bevel gear 26, an eighth bevel gear 27, and a transmission device, where the forward and reverse rotation motor is installed on an inner wall of a rear end of the control box 2, a rear end of the first telescopic rod 23 is fixedly connected to a front end of an output shaft of the forward and reverse rotation motor, the sixth bevel gear 25 is installed on a loop bar of the first telescopic rod 23, a bearing is installed on an outer periphery of the loop bar of the second telescopic rod 24 in a matching manner, a rear end of an outer ring outer wall of the bearing is fixedly connected to the inner wall of the rear end of the control box 2 by a fixing block, the seventh bevel gear 26 is installed at a top end of the second telescopic rod 24, the seventh bevel gear 26 can be engaged with the sixth bevel gear 25, the eighth bevel gear 27 is installed at a, a cross-shaped insert 28 is fixedly mounted at the front end of the first telescopic rod 23, the cross-shaped insert 28 being able to cooperate with a transmission device, which is able to cooperate with the third bevel gear 19. The forward and reverse rotation motor drives the first telescopic rod 23 to rotate, the sixth bevel gear 25 and the seventh bevel gear 26 are matched to drive the second telescopic rod 24 to rotate, and the second telescopic rod 24 can extend to enable the eighth bevel gear 27 to be respectively meshed and matched with the two first bevel gears 8 below, so that the two connecting plates 11 on the same horizontal plane are controlled to move; the third bevel gear 19 can be controlled to rotate through the transmission device, so that the connecting shaft 17 is driven to rotate, the stirring rod 18 can rotate in the desulfurization box 1, and the liquid in the desulfurization box 1 is stirred.

Further, the transmission device described in this embodiment is composed of two horizontal rods 29, a rotating shaft 30, and a ninth bevel gear 31, a bearing is disposed on the periphery of the rotating shaft 30 in a matching manner, the bearing is located between the two horizontal rods 29 and is fixedly connected with the opposite end of the horizontal rod 29, the opposite ends of the two horizontal rods 29 are respectively fixedly connected with the inner walls of the two sides of the control box 2, the ninth bevel gear 31 is installed at the front end of the rotating shaft 30, the ninth bevel gear 31 can be engaged with the third bevel gear 19, the rear end of the rotating shaft 30 is provided with a cross-shaped slot 32, and the cross-shaped insertion block 28 can be inserted into the cross-shaped slot 32. Through the extension of the first telescopic rod 23, the cross-shaped inserting block 28 is inserted into the cross-shaped slot 32, the first telescopic rod 23 rotates to drive the rotating shaft 30 to rotate, and further drive the ninth bevel gear 31 to rotate, the ninth bevel gear 31 is meshed and matched with the third bevel gear 19, and further drive the connecting shaft 17 to rotate, whether the connecting shaft 17 is controlled to rotate or not is selected according to needs, and different production needs are met.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A desulphurization unit is used in naphtha production which characterized in that: comprises two desulfurization boxes (1) and a control box (2), wherein the control box (2) is positioned between the two desulfurization boxes (1) and is fixedly connected with the desulfurization boxes (1), the inner walls of the two sides of the control box (2) are respectively provided with two first through holes (3), the inner walls of the opposite sides of the two desulfurization boxes (1) are respectively provided with two second through holes (4), the back sides of the two desulfurization boxes (1) are respectively provided with two placing grooves (13), the inner walls of the upper end and the lower end of each placing groove (13) are respectively provided with a slot (5), the inner walls of the front end and the rear end of the control box (2) are respectively provided with two strip grooves (6), the inner walls of the two sides of the strip groove (6) positioned at the rear part are respectively and movably provided with screw rods (7), the threads of the two screw rods (7) positioned in the same strip groove (6) are opposite, and the opposite ends of the two screw rods (7), a first bevel gear (8) is fixedly installed on the periphery of the connecting block, a nut is arranged on each screw rod (7) in a matched manner, two sliding blocks (9) are arranged in a strip groove (6) in front in a matched manner, the rear ends of the sliding blocks (9) and the front ends of the nuts are respectively and fixedly installed with a connecting rod (10), one sides of the front connecting rod (10) and the rear connecting rod (10) on the same horizontal plane are fixedly connected through a connecting plate (11), the two connecting plates (11) on the same horizontal plane are parallel to each other, the height of the connecting plate (11) is larger than the diameter of the first through hole (3), the back ends of the two connecting plates (11) on the same horizontal plane are respectively and fixedly installed with a desulphurization plate (12), the back ends of the two desulphurization plates (12) on the same horizontal plane are respectively and fixedly installed with a C-shaped plate (14), the C-shaped plate (14) can be inserted into a corresponding placing groove (, the C-shaped plate (14) is internally provided with a regulating device which is matched with the grooves to control the movement of the two flashboards (15), the flashboards (15) can be inserted into the slots (5), the inner walls of the two sides of the control box (2) are respectively provided with a third through hole (16), the third through holes (16) are communicated with the inside of the desulfurization box (1), a connecting shaft (17) is matched and arranged between the two third through holes (16), the connecting shaft (17) is positioned above the inside of the control box (2), the two ends of the connecting shaft (17) are respectively positioned in the two desulfurization boxes (1), a plurality of stirring rods (18) are fixedly arranged on the periphery of part of the connecting shaft (17) positioned in the desulfurization boxes (1), a third bevel gear (19) is fixedly arranged on the periphery of the middle part of the connecting shaft (17), the inner wall of the rear end of the control box (2) is matched and provided with a power device, the power, the top of the desulfurization box (1) is connected with a discharge control device, the bottom end of the desulfurization box (1) is connected with a discharge pipe with a valve, and the upper end and the lower end of the control box (2) are respectively fixedly connected with a connecting pipe.

2. The desulfurization apparatus for naphtha production according to claim 1, characterized in that: adjusting device by the company's piece through bearing installation and C template (14) groove inner wall, waterproof motor, fourth bevel gear (20), fifth bevel gear (21), two lead screw (22) that the screw thread is opposite, two nuts are constituteed, the outer loop outer wall one side of bearing and the groove inner wall fixed connection of C template (14), fourth bevel gear (20) fixed mounting is in even a periphery, waterproof motor installs on the groove inner wall of C template (14), fifth bevel gear (21) are installed in waterproof motor's output shaft tip, fifth bevel gear (21) can cooperate with fourth bevel gear (20) meshing, two lead screw (22) are located even the upper and lower both ends of piece respectively and with even a fixed connection, lead screw (22) and nut screw-thread fit, one side fixed connection of every nut and a picture peg (15).

3. The desulfurization apparatus for naphtha production according to claim 1, characterized in that: the power device comprises a forward and reverse rotation motor, a horizontal first telescopic rod (23), a vertical second telescopic rod (24), a sixth bevel gear (25), a seventh bevel gear (26), an eighth bevel gear (27) and a transmission device, wherein the forward and reverse rotation motor is arranged on the inner wall of the rear end of the control box (2), the rear end of the first telescopic rod (23) is fixedly connected with the front end of an output shaft of the forward and reverse rotation motor, the sixth bevel gear (25) is arranged on a loop bar of the first telescopic rod (23), a bearing is arranged on the periphery of the loop bar of the second telescopic rod (24) in a matching way, the rear end of the outer ring outer wall of the bearing is fixedly connected with the inner wall of the rear end of the control box (2) through a fixing block, the seventh bevel gear (26) is arranged at the top end of the second telescopic rod (24), the seventh bevel gear (26) can be meshed with the sixth bevel gear (25), the eighth bevel gear (27), the eighth bevel gear (27) can be meshed and matched with the first bevel gear (8), a cross-shaped inserting block (28) is fixedly installed at the front end of the first telescopic rod (23), the cross-shaped inserting block (28) can be matched with a transmission device, and the transmission device can be matched with the third bevel gear (19).

4. The desulfurization apparatus for naphtha production according to claim 3, characterized in that: the transmission device comprises two horizontal rods (29), a rotating shaft (30) and a ninth bevel gear (31), wherein a bearing is arranged on the periphery of the rotating shaft (30) in a matched mode, the bearing is located between the two horizontal rods (29) and fixedly connected with opposite ends of the horizontal rods (29), the opposite ends of the two horizontal rods (29) are fixedly connected with the inner walls of the two sides of the control box (2) respectively, the ninth bevel gear (31) is installed at the front end of the rotating shaft (30), the ninth bevel gear (31) can be meshed and matched with the third bevel gear (19), a cross-shaped slot (32) is formed in the rear end of the rotating shaft (30), and a cross-shaped insertion block (28) can be inserted into the cross-shaped slot (32).