A naphtha non-hydrogen reforming device

Abstract

The invention relates to the technical field of naphtha reforming, in particular to a naphtha non-hydrogen reforming device, comprising a reaction device, wherein the reaction device comprises a tank body, a feed port is provided at the top of the tank body, a sealing cover is detachably connected to the bottom of the tank body, a rotating shaft is rotatably installed at the middle of the sealing cover, a driving gear is fixedly connected to the rotating shaft, a plurality of short shafts are rotatably installed on the sealing cover, the central axes of the short shafts are located on the same circumference, a driven gear is fixedly connected to the short shafts, the rotating shaft and the top ends of the short shafts are rotatably mounted on a mounting disc, the disc is slidably mounted in a mounting tube, a ring gear is fixedly connected to the bottom end of the mounting tube, the ring gear is meshed with the driven gear, raw materials deposited at the bottom of the tank body are pushed to the top of the tank body by an auger, the uniformity of the distribution of the raw materials inside the tank body is maintained, the raw materials can be fully contacted, and the reaction rate between the raw materials is improved.

Description

Technical Field

[0001] The invention relates to the technical field of naphtha reforming, and in particular to a naphtha non-hydrogen reforming device. Background Art

[0002] In recent years, with the upgrading of environmental protection requirements, the aromatic content in gasoline has been further restricted. The aromatic content in reformed gasoline is too high, which is not conducive to gasoline blending. In addition, the catalytic reforming process has strict requirements on raw material impurities, and the equipment investment and production energy consumption are huge. Therefore, for naphtha raw materials such as reformed top oil, condensate, partially hydrogenated coker gasoline and straight-run gasoline, it is necessary to develop more suitable processing technologies to produce high-quality gasoline blending components.

[0003] During the switching and feeding process of the reactor of the naphtha reforming unit, it is necessary to quickly increase the reactor bed temperature to the normal reaction temperature. At present, the heating operation of the reactor of the naphtha reforming unit is mainly completed by nitrogen or etherified carbon four, so that it can be quickly put into normal production. However, the existing reactor often evaporates water due to excessive temperature, and then the material is deposited at the bottom of the reactor due to lack of water, resulting in incomplete reaction. In order to avoid this situation, excessive water needs to be used. After the reaction is completed, the excess water needs to be discharged, resulting in unnecessary waste. Summary of the invention

[0004] The purpose of the present invention is to solve the defect of the prior art that materials are deposited at the bottom of the reactor, and to propose a non-hydrogen reforming device for naphtha.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A non-hydrogen reforming device for naphtha is designed, comprising a reaction device, the reaction device comprising a tank body, a feed port is opened on the top of the tank body, a sealing cover is detachably connected to the bottom of the tank body, a rotating shaft is rotatably installed in the middle of the sealing cover, a driving gear is fixedly connected to the rotating shaft, a plurality of short shafts are rotatably installed on the sealing cover, the central axes of the short shafts are located on the same circumference, a driven gear is fixedly connected to the short shafts, the rotating shaft and the top ends of the short shafts are rotatably mounted on a disc, the disc is slidably mounted in a mounting tube, a ring gear is fixedly connected to the bottom end of the mounting tube, the ring gear is meshed with the driven gear, a stirring paddle is fixedly connected to the top end of the mounting tube, a motor is fixedly connected to the bottom surface of the sealing cover, and the output shaft of the motor is coaxially fixedly connected to the rotating shaft.

[0007] Preferably, a cleaning mechanism for cleaning the inner wall of the tank body is installed inside the tank body, the cleaning mechanism includes a cleaning structure and a driving structure, the cleaning structure includes a connecting plate, a stud, an adjusting nut, a buffer spring and a scraper, the connecting plate is installed on the ring gear through the driving structure, two through holes are spaced apart on the connecting plate, the stud is horizontally inserted in the through hole, one end of the stud is fixedly connected to the bottom of the scraper, the adjusting nut is threaded on the other end of the stud, and the buffer spring is sleeved on the stud.

[0008] Preferably, the buffer spring is located between the scraper and the connecting plate, and the buffer spring is always in a compressed state.

[0009] Preferably, the driving structure includes a cam, a sleeve, a protrusion, a sliding rod and a compression spring, the cam is fixed to the short shaft below the driven gear, the sleeve is fixed to the bottom surface of the ring gear, the sliding rod is slidably connected in the sleeve, the protrusion is fixed to one end of the sliding rod, the protrusion can abut against the cam, the other end of the sliding rod is fixed to the connecting plate, and the compression spring is arranged on the sliding rod between the sleeve and the protrusion.

[0010] Preferably, a secondary stirring structure is installed on the upper surface of the disc, and the secondary stirring structure includes a slide plate, a return spring, a propeller and a slide tube. The slide tube is vertically fixed to the upper surface of the disc, the bottom end of the slide tube is fixed to the top end of the rotating shaft, the slide plate is vertically inserted into the slide tube, the propeller is fixed to the top end of the slide plate, and the return spring is sleeved on the slide plate.

[0011] Preferably, the stirring paddle comprises an auger and a plurality of support rods, the support rods are vertically fixed to the top end of the mounting tube, the support rods are on the same circumference, and the auger is fixed to the support rods.

[0012] The invention provides a non-hydrogen reforming device for naphtha, which has the beneficial effect that the non-hydrogen reforming device for naphtha drives a rotating shaft to rotate through a motor, the rotating shaft drives a driving gear to rotate, the driving gear drives a driven gear to rotate, the driven gear drives a ring gear to rotate, the ring gear drives a mounting pipe to rotate, the mounting pipe rotation drives a stirring paddle to rotate, the stirring paddle will push the raw materials deposited at the bottom of the tank body to the top of the tank body through an auger, maintain the uniformity of the distribution of the raw materials inside the tank body, so that the raw materials can be fully contacted with each other, thereby improving the reaction rate between the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a naphtha non-hydrogen reforming device proposed by the present invention Figure 1 .

[0014] Figure 2 A schematic diagram of the structure of a naphtha non-hydrogen reforming device proposed by the present invention Figure 2 .

[0015] Figure 3 A schematic diagram of the structure of the installation pipe of a naphtha non-hydrogen reforming device proposed by the present invention Figure 1 .

[0016] Figure 4 Schematic diagram of the installation pipe structure of a naphtha non-hydrogen reforming device proposed by the present invention Figure 2 .

[0017] Figure 5 This is an enlarged view of point A of a naphtha non-hydrogen reforming device proposed by the present invention.

[0018] In the figure: tank body 1, sealing cover 2, rotating shaft 3, short shaft 4, driving gear 5, driven gear 6, cam 7, mounting tube 8, disc 9, sliding sleeve 10, protrusion 11, sliding rod 12, compression spring 13, connecting plate 14, through hole 15, stud 16, adjusting nut 17, buffer spring 18, scraper 19, slide plate 20, return spring 21, propeller 22, sliding tube 23, stirring paddle 24, motor 25. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-5A non-hydrogen reforming device for naphtha comprises a reaction device, which comprises a tank body 1, a feed port is provided on the top of the tank body 1, a sealing cover 2 is detachably connected to the bottom of the tank body 1, a rotating shaft 3 is rotatably installed in the middle of the sealing cover 2, a driving gear 5 is fixedly connected to the rotating shaft 3, a plurality of short shafts 4 are rotatably installed on the sealing cover 2, the central axis of the short shaft 4 is located on the same circumference, a driven gear 6 is fixedly connected to the short shaft 4, the rotating shaft 3 and the top of the short shaft 4 can both be rotatably mounted on a mounting disc 9, the disc 9 is slidably mounted in a mounting tube 8, a ring gear is fixedly connected to the bottom end of the mounting tube 8, the ring gear is meshed on the driven gear 6, a stirring paddle 24 is fixedly connected to the top of the mounting tube 8, the stirring paddle 24 comprises an auger and a plurality of support rods, the support rods are vertically fixedly connected to the top of the mounting tube 8, the support rods are on the same circumference, the auger is fixedly connected to the support rod, a motor 25 is fixedly connected to the bottom surface of the sealing cover 2, and the output shaft of the motor 25 is coaxially fixedly connected to the rotating shaft 3. Start the motor 25, the motor 25 drives the rotating shaft 3 to rotate, the rotating shaft 3 drives the driving gear 5 to rotate, the driving gear 5 drives the driven gear 6 to rotate, the driven gear 6 drives the ring gear to rotate, the ring gear drives the mounting tube 8 to rotate, the mounting tube 8 rotates and drives the stirring paddle 24 to rotate, the stirring paddle 24 will push the raw materials deposited at the bottom of the tank body 1 to the top of the tank body 1 through the auger, keep the raw materials evenly distributed inside the tank body 1, so that the raw materials can fully contact each other, thereby improving the reaction rate between the raw materials.

[0021] A cleaning mechanism for cleaning the inner wall of the tank body 1 is installed inside the tank body 1. The cleaning mechanism includes a cleaning structure and a driving structure. The cleaning structure includes a connecting plate 14, a stud 16, an adjusting nut 17, a buffer spring 18 and a scraper 19. The connecting plate 14 is installed on the ring gear through the driving structure. Two through holes 15 are arranged at intervals on the connecting plate 14. The stud 16 is horizontally inserted into the through hole 15. One end of the stud 16 is fixedly connected to the bottom of the scraper 19. The adjusting nut 17 is screwed on the other end of the stud 16. The buffer spring 18 is sleeved on the stud 16. The buffer spring 18 is located at Between the scraper 19 and the connecting plate 14, the buffer spring 18 is always in a compressed state. The driving structure includes a cam 7, a sleeve 10, a protrusion 11, a slide rod 12 and a compression spring 13. The cam 7 is fixedly connected to the short shaft 4 below the driven gear 6, the sleeve 10 is fixedly connected to the bottom surface of the ring gear, the slide rod 12 is slidably connected in the sleeve 10, the protrusion 11 is fixedly connected to one end of the slide rod 12, the protrusion 11 can be abutted against the cam 7, and the other end of the slide rod 12 is fixedly connected to the connecting plate 14. The compression spring 13 is sleeved on the slide rod 12 between the sleeve 10 and the protrusion 11. When the ring gear rotates, the scraper 19 is driven to rotate. During the rotation of the scraper 19, it will be in close contact with the inner wall of the tank body 1 to scrape off the raw materials attached to the inner wall of the tank body 1. In addition, when the inside of the tank body 1 is cleaned, the scraper 19 can also clean the dirt accumulated on the inner wall of the tank body 1, thereby improving the cleaning efficiency of the tank body 1. When the driven gear 6 rotates, the short shaft 4 is driven to rotate, and the short shaft 4 drives the cam 7 to rotate. The cam 7 periodically applies pressure to the protrusion 11. The pressure applied by the cam 7 is transmitted to the scraper 19 through the slide bar 12 and the connecting plate 14, so that the scraper 19 is in close contact with the inner wall of the tank body 1, thereby improving the cleaning efficiency.

[0022] A secondary stirring structure is installed on the upper surface of the disc 9, and the secondary stirring structure includes a slide plate 20, a return spring 21, a propeller 22 and a slide tube 23. The slide tube 23 is vertically fixed to the upper surface of the disc 9, and the bottom end of the slide tube 23 is fixed to the top of the rotating shaft 3. The slide plate 20 is vertically inserted into the slide tube 23, the propeller 22 is fixed to the top of the slide plate 20, and the return spring 21 is sleeved on the slide plate 20. When the rotating shaft 3 rotates, the slide tube 23 is driven to rotate, the slide tube 23 drives the slide plate 20 to rotate, and the slide plate 20 drives the propeller 22 to rotate. The propeller 22 will disperse the raw materials precipitated from the top of the tank body 1 to the top of the tank body 1 to prevent the accumulation of materials from affecting the efficiency of the reaction device.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A naphtha non-hydrogen reforming device, comprising a reaction device, characterized in that: The reaction device comprises a tank body (1), the top of the tank body (1) is provided with a feed port, the bottom of the tank body (1) is detachably connected with a sealing cover (2), a rotating shaft (3) is rotatably mounted in the middle of the sealing cover (2), a driving gear (5) is fixedly connected to the rotating shaft (3), a plurality of short shafts (4) are rotatably mounted on the sealing cover (2), the central axes of the short shafts (4) are located on the same circumference, and a driven gear (6) is fixedly connected to the short shafts (4), The rotating shaft (3) and the top of the short shaft (4) are both rotatably mounted on a mounting disc (9), the disc (9) is slidably mounted in a mounting tube (8), the bottom end of the mounting tube (8) is fixedly connected to a ring gear, the ring gear is meshed with the driven gear (6), the top end of the mounting tube (8) is fixedly connected to a stirring paddle (24), the bottom surface of the sealing cover (2) is fixedly connected to a motor (25), and the output shaft of the motor (25) is fixedly connected to the rotating shaft (3) coaxially; A cleaning mechanism for cleaning the inner wall of the tank body (1) is installed inside the tank body (1), the cleaning mechanism comprising a cleaning structure and a driving structure, the cleaning structure comprising a connecting plate (14), a stud (16), an adjusting nut (17), a buffer spring (18) and a scraper (19), the connecting plate (14) being installed on the ring gear through the driving structure, the connecting plate (14) being provided with two through holes (15) at intervals, the stud (16) being horizontally inserted into the through holes (15), one end of the stud (16) being fixedly connected to the bottom of the scraper (19), the adjusting nut (17) being screwed onto the other end of the stud (16), and the buffer spring (18) being sleeved on the stud (16); The buffer spring (18) is located between the scraper (19) and the connecting plate (14), and the buffer spring (18) is always in a compressed state; The driving structure comprises a cam (7), a sleeve (10), a protrusion (11), a slide rod (12) and a compression spring (13); the cam (7) is fixedly connected to the short shaft (4) below the driven gear (6); the sleeve (10) is fixedly connected to the bottom surface of the ring gear; the slide rod (12) is slidably connected to the sleeve (10); the protrusion (11) is fixedly connected to one end of the slide rod (12); the protrusion (11) can abut against the cam (7); the other end of the slide rod (12) is fixedly connected to the connecting plate (14); and the compression spring (13) is sleeved on the slide rod (12) between the sleeve (10) and the protrusion (11); The stirring paddle (24) comprises an auger and a plurality of support rods, wherein the support rods are vertically fixed to the top end of the mounting tube (8), the support rods are located on the same circumference, and the auger is fixed to the support rods.

2. A naphtha non-hydrogen reforming device according to claim 1, characterized in that: A secondary stirring structure is installed on the upper surface of the disc (9), and the secondary stirring structure comprises a slide plate (20), a return spring (21), a propeller (22) and a slide tube (23). The slide tube (23) is vertically fixed to the upper surface of the disc (9), the bottom end of the slide tube (23) is fixed to the top end of the rotating shaft (3), the slide plate (20) is vertically inserted into the slide tube (23), the propeller (22) is fixed to the top end of the slide plate (20), and the return spring (21) is sleeved on the slide plate (20).

Images