Naphtha raw material desulfurization pickling equipment

Abstract

The invention is suitable for the technical field of naphtha desulfurization, and provides naphtha raw material desulfurization pickling equipment which comprises a pickling box and further comprises a pickling assembly, the pickling assembly comprises a shell, a bottom net plate is fixed to an opening in the bottom of the shell in a matched mode, and a transmission roller B and a transmission roller A are rotationally installed at the two ends of the shell correspondingly; a transmission belt is wound between the transmission roller B and the transmission roller A, a plurality of shifting plates are evenly distributed and fixed to the outer side of the transmission belt, and a motor used for driving the transmission belt to operate is further fixed to the shell; the feeding assembly is used for inputting naphtha and acid liquor from the two ends of the transmission roller B respectively, mixing the naphtha and the acid liquor and discharging the naphtha and the acid liquor from the middle of the transmission roller B; and the plugging and lifting assembly is used for controlling and plugging the bottom opening of the shell and lifting materials at the bottom in the pickling box to the inner side of the shell. Through efficient mixing, real-time sediment cleaning and flexible material control, the pickling efficiency and the treatment quality are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of naphtha desulfurization, and in particular relates to a naphtha raw material desulfurization washing device. Background Art

[0002] Naphtha, also known as chemical light oil, crude gasoline, light oil, volatile oil or petroleum naphtha, is one of the petroleum products. It is a light oil product obtained by distilling crude oil or cutting the corresponding fraction from secondary processing of petroleum. Naphtha is an important petroleum product and is widely used in petrochemical and refining industries.

[0003] When naphtha is used as a raw material for hydrogen production, if the produced hydrogen is mixed with sulfides, these sulfides will poison the adsorbent in the hydrogen production system of the fuel cell, causing the adsorbent to lose its activity. This impact will not only reduce the life and performance of the fuel cell, but also directly weaken the overall efficiency and stability of new energy equipment. Therefore, ensuring that the content of sulfides in hydrogen is controlled within a safe range is crucial to maintaining the normal operation of fuel cells and new energy equipment.

[0004] In the process of naphtha desulfurization, the pickling process is usually used to effectively remove the sulfides in it. Naphtha will produce precipitates during the pickling process. These precipitates may include solid particles, colloids or suspended matter. These precipitates may not only react further with the components in the pickling solution to generate new corrosive compounds, reduce the activity of the pickling solution, but also have an adverse effect on the quality of naphtha.

[0005] Therefore, in view of the above situation, there is an urgent need to develop a naphtha raw material desulfurization washing equipment that can perform efficient mixing, real-time sediment cleaning and flexible material control, thereby significantly improving the pickling efficiency and processing quality, in order to overcome the shortcomings in current practical applications. Summary of the invention

[0006] The object of the present invention is to provide a naphtha raw material desulfurization washing device, aiming to solve the problems mentioned in the above background technology.

[0007] The present invention is implemented as follows: a naphtha raw material desulfurization washing equipment comprises a pickling box, the bottom of which is fixed with legs, one end of which is fixed with a storage box, and further comprises: A pickling assembly, the pickling assembly is installed and fixed on the inner side of the pickling box, the pickling assembly includes a shell, a bottom mesh plate is fixed at the bottom opening of the shell, a transmission roller B and a transmission roller A are rotatably installed at both ends of the shell, and the transmission roller A is located on the side close to the storage box, a transmission belt is wound around the transmission roller B and the transmission roller A, a plurality of paddles are evenly distributed and fixed on the outer side of the transmission belt, a scraper capable of cooperating with the lower inner wall of the shell is fixed on the end of the paddle away from the transmission belt, a motor for driving the transmission belt to operate is also fixed on the shell, and when the transmission belt is running, the paddle and the scraper cooperate to send the pickling sediment into the storage box; A feeding assembly is also installed on the pickling box, and the feeding assembly is used to input naphtha and acid solution from both ends of the driving roller B respectively, and discharge them from the middle of the driving roller B after mixing; A plugging and lifting assembly is also installed on the pickling box, and the plugging and lifting assembly is used to control the plugging of the bottom opening of the shell and lift the material at the bottom of the pickling box to the inside of the shell.

[0008] A further technical solution is that both ends of the shell are arc-shaped structures, a fixed base is fixed to the bottom of the shell, and the lower end of the fixed base is fixed to the inner bottom of the pickling box; a debris outlet is opened at the top of one end of the shell close to the debris storage box, the upper part of the inner cavity of the debris storage box is connected with the debris outlet, and a discharge port B is also provided at the bottom of the debris storage box.

[0009] A further technical solution is that a support tube is fixed at each end of the transmission roller B, and the two support tubes are rotatably connected to the front and rear side walls of the outer shell; a support shaft is fixed at each end of the transmission roller A, and the two support shafts are rotatably connected to the front and rear side walls of the outer shell; the output end of the motor is transmission-connected to one of the support shafts.

[0010] According to a further technical solution, the transmission belt adopts a mesh structure, the shift plate adopts a porous plate, and the shift plate is inclined toward the running direction of the transmission belt at one end close to the transmission belt; the aperture of the shift plate is smaller than the aperture of the transmission belt.

[0011] A further technical solution is that the transmission roller B includes a cylinder A, a cylinder B, a connecting rod, a disturbance rod and a spiral plate. The cylinder A and the cylinder B are horizontally opposite and spaced apart. The two support tubes are respectively fixed at one end of the cylinder A and the cylinder B that are away from each other, and the two support tubes are correspondingly connected to the inner cavities of the cylinder A and the cylinder B. A plurality of connecting rods are circumferentially fixed between the cylinder A and the cylinder B, and the disturbance rods are fixed on the connecting rods. Spiral plates are fixed on the inner sides of the cylinder A and the cylinder B, and when the transmission roller B rotates, the spiral plates are used to push the liquid to the area between the cylinder A and the cylinder B.

[0012] According to a further technical solution, an annular flange for limiting the transmission belt is provided at one end of the cylinder A and the cylinder B which are away from each other and at both ends of the transmission roller A; and the inner cavity corners of the one end of the cylinder A and the cylinder B which are away from each other are rounded.

[0013] A further technical solution is that the feeding assembly includes a naphtha pipe, a tank bracket A, a naphtha tank, a tank bracket B, an acid tank, a solenoid valve and an acid pipe, the top of the pickling box is respectively fixed with a tank bracket A and a tank bracket B, the tank bracket A and the tank bracket B are respectively fixed with a naphtha tank and an acid tank, the bottom of the naphtha tank and the acid tank are respectively installed with a naphtha pipe and an acid pipe, and solenoid valves are installed on the naphtha pipe and the acid pipe, the lower ends of the naphtha pipe and the acid pipe respectively extend into the inner side of the pickling box and are correspondingly connected to the two support pipes in a sealed and rotatable manner.

[0014] A further technical solution is that the blocking and lifting assembly includes a reflux pipe, a lifting pump, a bottom plugging plate, a connecting plate, a transmission frame, a horizontal telescopic cylinder and a push-pull rod. A lifting pump is provided at the bottom of the pickling box, and a reflux pipe is installed at the outlet of the lifting pump. The other end of the reflux pipe is fixed on the side wall of the outer shell, and the reflux pipe is connected to the area between the upper and lower branches of the transmission belt; bottom plugging plates for sealing the bottom opening are also slidably provided on the front and rear sides of the bottom of the outer shell, and multiple push-pull rods are fixed on the sides away from each other of the two bottom plugging plates, and the push-pull rods slide out from the side wall of the pickling box and are fixedly connected to the connecting plate. An L-shaped transmission frame is fixed in the middle of the connecting plate, and a horizontal telescopic cylinder is also fixed on the vertical part of the transmission frame, and the cylinder body of the horizontal telescopic cylinder is fixedly connected to the outer wall of the pickling box.

[0015] According to a further technical solution, a guide rod slidably connected to the connecting plate is fixed on the outer wall of the pickling box; the inner bottom of the pickling box is a conical structure with the middle tilted downward, the lifting pump is fixed in the middle position of the inner bottom of the pickling box, and a discharge port A is also opened in the middle of the bottom of the pickling box.

[0016] The naphtha raw material desulfurization washing equipment provided by the present invention has the following beneficial effects: Naphtha and acid liquid can be input from both ends of the transmission roller B through the feeding assembly, and discharged from the middle of the transmission roller B after mixing. The transmission belt is driven by a motor, which not only makes the transmission roller B rotate to mix the liquid, but also can squeeze the liquid discharged from the transmission roller B for secondary mixing. The paddle and scraper installed on the transmission belt can also cooperate to push the pickling sediment into the storage box, ensuring that the sediment produced by pickling is cleaned in real time, and using the paddle to improve the efficiency and quality of pickling.

[0017] In addition, the pickling material can be discharged through the bottom mesh plate at the bottom of the shell, and the blocking and lifting assembly can control and block the bottom opening of the shell, and lift the material at the bottom of the pickling box to the inside of the shell, so as to achieve more flexible and sufficient pickling control and further improve the quality of pickling.

[0018] In summary, the naphtha raw material desulfurization and washing equipment significantly improves the pickling efficiency and processing quality through efficient mixing, real-time sediment cleaning and flexible material control. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a partially cutaway three-dimensional structure of a naphtha raw material desulfurization washing device provided in an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the rear-view angle structure; Figure 3 A schematic diagram of the structure of the pickling component part of the naphtha raw material desulfurization washing equipment provided by an embodiment of the present invention; Figure 4 for Figure 3 Schematic diagram of the structure at an upward viewing angle; Figure 5 for Figure 4 A schematic diagram of the structure after the bottom plugging plate is separated; Figure 6 A schematic diagram of the three-dimensional structure of the driving roller B part in the naphtha raw material desulfurization washing equipment provided by an embodiment of the present invention; Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure.

[0020] In the figure: 1-naphtha pipe, 2-tank bracket A, 3-naphtha tank, 4-tank bracket B, 5-acid tank, 6-solenoid valve, 7-acid pipe, 8-pickling box, 9-pickling assembly, 10-return pipe, 11-support leg, 12-lifting pump, 13-discharge port A, 14-bottom plugging plate, 15-discharge port B, 16-storage box, 17-connecting plate, 18-guide rod, 19-transmission frame, 20-horizontal Telescopic cylinder, 21-support tube, 22-push-pull rod, 23-support shaft, 24-drive roller A, 25-fixed base, 26-housing, 27-discharge port, 28-motor, 29-drive belt, 30-paddle, 31-scraper, 32-drive roller B, 33-bottom mesh plate, 34-cylinder A, 35-annular flange, 36-connecting rod, 37-disturbance rod, 38-cylinder B, 39-spiral plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0023] like Figure 1-Figure 5 As shown, a naphtha raw material desulfurization washing equipment provided by an embodiment of the present invention includes a pickling box 8, a support leg 11 is fixed to the bottom of the pickling box 8, a storage box 16 is fixed to one end of the pickling box 8, and further includes: A pickling assembly 9, the pickling assembly 9 is installed and fixed on the inner side of the pickling box 8, the pickling assembly 9 includes a shell 26, a bottom mesh plate 33 is fixed at the bottom opening of the shell 26, a transmission roller B32 and a transmission roller A24 are rotatably installed at both ends of the shell 26, and the transmission roller A24 is located on the side close to the storage box 16, a transmission belt 29 is wound around the transmission roller B32 and the transmission roller A24, a plurality of paddles 30 are evenly distributed and fixed on the outer side of the transmission belt 29, and a scraper 31 capable of cooperating with the lower inner wall of the shell 26 is fixed on the end of the paddle 30 away from the transmission belt 29, and a motor 28 for driving the transmission belt 29 is also fixed on the shell 26, and when the transmission belt 29 is running, the paddle 30 and the scraper 31 cooperate to send the pickling sediment into the storage box 16; A feeding assembly is also installed on the pickling box 8, and the feeding assembly is used to input naphtha and acid solution from both ends of the driving roller B32 respectively, and discharge them from the middle of the driving roller B32 after mixing; A plugging and lifting assembly is also installed on the pickling box 8, and the plugging and lifting assembly is used to control the plugging of the bottom opening of the outer shell 26 and to lift the material at the bottom of the pickling box 8 to the inner side of the outer shell 26.

[0024] In the embodiment of the present invention, naphtha and acid solution can be respectively input from both ends of the transmission roller B32 through the feeding assembly, and discharged from the middle of the transmission roller B32 after mixing. The transmission belt 29 is driven by the motor 28 to operate, which not only makes the transmission roller B32 rotate to mix the liquid, but also can squeeze and mix the liquid discharged from the transmission roller B32 for secondary mixing. The paddle 30 and scraper 31 installed on the transmission belt 29 can also cooperate to paddle the pickling sediment into the storage box 16, ensuring that the sediment generated by pickling is cleaned in real time, and using the paddle to improve the efficiency and quality of pickling. In addition, the pickled material can be discharged through the bottom mesh plate 33 at the bottom of the shell 26, and the plugging and lifting assembly can control and block the bottom opening of the shell 26, and lift the material at the bottom of the pickling box 8 to the inner side of the shell 26, so as to achieve more flexible and sufficient pickling control and further improve the quality of pickling.

[0025] like Figure 1-Figure 7 As shown, as a preferred embodiment of the present invention, both ends of the outer shell 26 are arc-shaped structures, which are convenient for fully adapting to the rotating paddle 30 and the scraper 31; in order to improve the stability of the outer shell 26, a fixed base 25 is fixed to the bottom of the outer shell 26, and the lower end of the fixed base 25 is fixed to the inner bottom of the pickling box 8.

[0026] The top of one end of the shell 26 close to the storage box 16 is provided with a discharge port 27, and the upper part of the inner cavity of the storage box 16 is communicated with the discharge port 27. The bottom of the storage box 16 is also provided with a discharge port B15. The sediment moved by the paddle 30 and the scraper 31 can be discharged through the discharge port 27 to the inner side of the storage box 16 for collection, and then discharged through the discharge port B15.

[0027] A support tube 21 is fixed to each end of the transmission roller B32, and the two support tubes 21 are rotatably connected to the front and rear side walls of the outer shell 26; a support shaft 23 is fixed to each end of the transmission roller A24, and the two support shafts 23 are rotatably connected to the front and rear side walls of the outer shell 26 to ensure overall stability; the output end of the motor 28 is connected to one of the support shafts 23 to ensure the driving of the transmission roller A24, thereby allowing the transmission belt 29 to operate reliably.

[0028] As for the characteristics of the transmission belt 29, the paddle 30 and the scraper 31, the transmission belt 29 adopts a mesh structure to ensure that the liquid discharged by the transmission roller B32 can fall into the inner bottom of the housing 26; the paddle 30 adopts a porous plate, and the end of the paddle 30 close to the transmission belt 29 is inclined toward the running direction of the transmission belt 29, so as to ensure that the sediments sent by the paddle 30 can slide into the storage box 16. In addition, there is no limitation on the scraper 31, which can scrape off the sediments; the aperture of the paddle 30 is preferably smaller than the aperture of the transmission belt 29, so that the paddle 30 can both allow the liquid to pass through and block the sediments, thereby improving reliability.

[0029] like Figure 6 and Figure 7 As shown, the structure of the transmission roller B32 is specially arranged. Specifically, the transmission roller B32 includes a cylinder A34, a cylinder B38, a connecting rod 36, a disturbance rod 37 and a spiral plate 39. The cylinder A34 and the cylinder B38 are horizontally opposite and spaced apart. The two support tubes 21 are respectively fixed to the ends of the cylinder A34 and the cylinder B38 that are far away from each other, and the two support tubes 21 are correspondingly connected to the inner cavities of the cylinder A34 and the cylinder B38. The cylinder A34 and the cylinder B38 are circumferentially distributed. A plurality of connecting rods 36 are fixed, and a disturbance rod 37 is fixed on the connecting rod 36. A spiral plate 39 is fixed on the inner side of the cylinder A34 and the cylinder B38, and when the transmission roller B32 rotates, the spiral plate 39 is used to push the liquid to the area between the cylinder A34 and the cylinder B38. The spiral plate 39 can be arranged according to the pushing direction, and will not be elaborated. Through the arrangement of the spiral plate 39, the disturbance rod 37 and the connecting rod 36, the naphtha and the acid solution can be fully mixed to improve the efficiency of pickling.

[0030] Preferably, the ends of the cylinder A34 and the cylinder B38 that are away from each other and both ends of the transmission roller A24 are provided with annular flanges 35 for limiting the transmission belt 29, thereby improving the operating reliability of the transmission belt 29.

[0031] Preferably, the inner cavity corners of the ends of the cylinders A34 and B38 that are away from each other are rounded to improve the reliability of the infusion of the support tube 21; the disturbance rod 37 does not need to protrude from the surfaces of the cylinders A34 and B38, so as not to affect the reliable operation of the transmission belt 29.

[0032] like Figure 1 and Figure 3As shown, as a preferred embodiment of the present invention, the feed assembly includes a naphtha pipe 1, a tank bracket A2, a naphtha tank 3, a tank bracket B4, an acid tank 5, a solenoid valve 6 and an acid pipe 7. The top of the pickling box 8 is respectively fixed with a tank bracket A2 and a tank bracket B4, and the tank bracket A2 and the tank bracket B4 are respectively fixed with a naphtha tank 3 and an acid tank 5. The bottoms of the naphtha tank 3 and the acid tank 5 are respectively installed with a naphtha pipe 1 and an acid pipe 7, and the naphtha pipe 1 and the acid pipe 7 are both installed with a solenoid valve 6. The lower ends of the naphtha pipe 1 and the acid pipe 7 are respectively extended into the inner side of the pickling box 8 and correspondingly connected with the two support pipes 21 in a sealed and rotating manner, that is, the naphtha and acid are controlled to be transported to the support pipe 21 through the naphtha pipe 1 and the acid pipe 7. In addition, the naphtha tank 3 and the acid tank 5 can be arranged with addition ports, windows, heating components, etc. as needed to improve the reliability of the work.

[0033] like Figure 1-Figure 5 As shown, as a preferred embodiment of the present invention, the plugging and lifting assembly includes a reflux pipe 10, a lifting pump 12, a bottom plugging plate 14, a connecting plate 17, a transmission frame 19, a horizontal telescopic cylinder 20 and a push-pull rod 22. The bottom of the pickling box 8 is provided with a lifting pump 12, and the outlet of the lifting pump 12 is installed with a reflux pipe 10. The other end of the reflux pipe 10 is fixed to the side wall of the shell 26, and the reflux pipe 10 is connected to the area between the upper and lower branches of the transmission belt 29, so that the lifted liquid can be transferred and scattered by the transmission belt 29, further improving the treatment effect; the front and rear sides of the bottom of the shell 26 are also slidably provided with a bottom A bottom plugging plate 14 is provided to seal the opening of the pickling box 8, and a plurality of push-pull rods 22 are fixed on the sides away from each other of the two bottom plugging plates 14. The push-pull rods 22 slide out from the side walls of the pickling box 8 and are fixedly connected to the connecting plate 17. An L-shaped transmission frame 19 is fixed in the middle of the connecting plate 17, and a horizontal telescopic cylinder 20 is also fixed on the vertical part of the transmission frame 19. The cylinder body of the horizontal telescopic cylinder 20 is fixedly connected to the outer wall of the pickling box 8. By arranging two bottom plugging plates 14 to open on both sides, it is ensured that the liquid is discharged from the bottom middle of the outer shell 26, and it can cooperate more reliably with the transmission belt 29, the paddle 30 and the scraper 31 to help improve the overall processing effect.

[0034] Preferably, in order to improve the stability of the connecting plate 17 , a guide rod 18 slidably connected to the connecting plate 17 is fixed on the outer wall of the pickling box 8 .

[0035] Preferably, the inner bottom of the pickling tank 8 is a conical structure that tilts downward in the middle, the lifting pump 12 is fixed in the middle position of the inner bottom of the pickling tank 8, and a discharge port A13 is also opened in the middle of the bottom of the pickling tank 8, through which the treated naphtha is discharged.

[0036] The above embodiment of the present invention provides a naphtha raw material desulfurization washing device, the main working principle of which is as follows: First, the naphtha tank 3 and the acid tank 5 transport the naphtha and acid to both ends of the transmission roller B32 inside the pickling box 8 through their respective pipelines (naphtha pipe 1 and acid pipe 7). This process is controlled by the solenoid valve 6 to ensure that the naphtha and acid are mixed in a predetermined ratio.

[0037] The naphtha and acid solution entering the pickling box 8 will begin to mix under the action of the transmission roller B32. The transmission roller B32 is designed with a spiral plate 39 inside. When the transmission roller B32 rotates, the spiral plate 39 will push the liquid to the area between the cylinder A34 and the cylinder B38, superimposing the stirring of the disturbance rod 37 and the connecting rod 36, promoting the full mixing of the naphtha and the acid solution, and improving the pickling efficiency. At the same time, the transmission belt 29 is operated under the action of external force (driven by the motor 28), and the paddle 30 and scraper 31 on the transmission belt 29 will move with the movement of the transmission belt 29, further stirring and mixing the naphtha and the acid solution, and helping to remove the sediment generated during the pickling process.

[0038] The sediment generated during the pickling process will be collected by the paddle 30 and the scraper 31 on the transmission belt 29, and gradually move toward the storage box 16 along the moving direction of the transmission belt 29. When the sediment reaches the entrance of the storage box 16, it will enter the storage box 16 through the outlet 27 and finally be discharged through the discharge port B15.

[0039] In addition, a plugging and lifting assembly is provided inside the pickling tank 8, including a lifting pump 12 and a return pipe 10. The lifting pump 12 is responsible for pumping the material at the bottom of the pickling tank 8 to the inner side of the shell 26 through the return pipe 10, and forms a good match with the transmission belt 29, the paddle 30 and the scraper 31, which is conducive to the reprocessing or recycling of the material and improves the resource utilization rate. By arranging two bottom plugging plates 14 to open on both sides, it is ensured that the liquid is discharged from the middle of the bottom of the shell 26, which can cooperate more reliably with the transmission belt 29, the paddle 30 and the scraper 31, and help improve the overall processing effect.

[0040] The treated naphtha is discharged through the discharge port A13 in the middle of the bottom of the pickling tank 8. Since the inner bottom of the pickling tank 8 is designed as a tapered structure with a downward inclination in the middle, this is conducive to the smooth discharge of the treated naphtha to avoid residue.

[0041] In summary, the naphtha raw material desulfurization and washing equipment significantly improves the pickling efficiency and treatment quality by integrating efficient mixing, sediment removal and material circulation systems, while ensuring the cleanliness and environmental protection of the operation process.

[0042] The PLC controller disclosed in the prior art can be used to control each component. The model and circuit connection of each component are not specifically limited and can be flexibly set in actual application.

[0043] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0044] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A naphtha raw material desulfurization washing equipment, comprising a pickling box (8), a support leg (11) is fixed to the bottom of the pickling box (8), and a storage box (16) is fixedly installed at one end of the pickling box (8), characterized in that: Also includes: A pickling assembly (9), the pickling assembly (9) being mounted and fixed on the inner side of the pickling box (8), the pickling assembly (9) comprising a shell (26), a bottom mesh plate (33) being fixedly mounted at the bottom opening of the shell (26), a transmission roller B (32) and a transmission roller A (24) being rotatably mounted at both ends of the shell (26), and the transmission roller A (24) being located on a side close to the storage box (16); a transmission roller B (32) and a transmission roller A (24) being wound around each other. A plurality of shifting plates (30) are evenly distributed and fixed on the outer side of the transmission belt (29), and a scraper (31) capable of cooperating with the lower inner wall of the housing (26) is fixed to one end of the shifting plate (30) away from the transmission belt (29); a motor (28) for driving the transmission belt (29) is also fixed to the housing (26), and when the transmission belt (29) is running, the shifting plates (30) and the scraper (31) cooperate to shift the pickling sediment into the storage box (16); A material feeding assembly is also installed on the pickling box (8), and is used to input naphtha and acid liquid from both ends of the driving roller B (32) respectively, and discharge them from the middle of the driving roller B (32) after mixing; A plugging and lifting assembly is also installed on the pickling box (8), and is used to control the sealing of the bottom opening of the outer shell (26) and to lift the material at the bottom of the pickling box (8) to the inner side of the outer shell (26).

2. The naphtha raw material desulfurization washing equipment according to claim 1, characterized in that: Both ends of the housing (26) are arc-shaped structures; A fixed base (25) is fixed to the bottom of the outer shell (26), and the lower end of the fixed base (25) is fixed to the inner bottom of the pickling box (8); The top of one end of the outer shell (26) close to the storage box (16) is provided with a discharge port (27), the upper part of the inner cavity of the storage box (16) is in communication with the discharge port (27), and the bottom of the storage box (16) is also provided with a discharge port B (15).

3. The naphtha raw material desulfurization washing equipment according to claim 1, characterized in that: A support tube (21) is fixed to each of the two ends of the driving roller B (32), and the two support tubes (21) are rotatably connected to the front and rear side walls of the housing (26) respectively; A support shaft (23) is fixed to each of the two ends of the driving roller A (24), and the two support shafts (23) are rotatably connected to the front and rear side walls of the housing (26) respectively; The output end of the motor (28) is drivingly connected to one of the support shafts (23).

4. The naphtha raw material desulfurization washing equipment according to claim 1, characterized in that: The transmission belt (29) adopts a mesh structure; The shifting plate (30) is a porous plate, and one end of the shifting plate (30) close to the transmission belt (29) is arranged to be inclined toward the running direction of the transmission belt (29); The aperture of the shifting plate (30) is smaller than the aperture of the transmission belt (29).

5. The naphtha raw material desulfurization washing equipment according to claim 3, characterized in that: The driving roller B (32) comprises a cylinder A (34), a cylinder B (38), a connecting rod (36), a disturbance rod (37) and a spiral plate (39); The cylinder A (34) and the cylinder B (38) are arranged horizontally opposite to each other and spaced apart, and the two support tubes (21) are respectively fixed to ends of the cylinder A (34) and the cylinder B (38) that are away from each other, and the two support tubes (21) are correspondingly connected to the inner cavities of the cylinder A (34) and the cylinder B (38); A plurality of connecting rods (36) are fixedly arranged in a circumferential direction between the cylinder A (34) and the cylinder B (38), and a disturbance rod (37) is fixedly arranged on the connecting rod (36); A spiral plate (39) is fixed on the inner side of the cylinder A (34) and the cylinder B (38), and when the driving roller B (32) rotates, the spiral plate (39) is used to push the liquid to the area between the cylinder A (34) and the cylinder B (38).

6. The naphtha raw material desulfurization washing equipment according to claim 5, characterized in that: An annular flange (35) for limiting the position of the transmission belt (29) is provided at the ends of the cylinder A (34) and the cylinder B (38) that are away from each other and at both ends of the transmission roller A (24); The inner cavity corners of the ends of the cylinder A (34) and the cylinder B (38) that are away from each other are rounded.

7. The naphtha raw material desulfurization washing equipment according to claim 5, characterized in that: The feed assembly comprises a naphtha pipe (1), a tank support A (2), a naphtha tank (3), a tank support B (4), an acid tank (5), a solenoid valve (6) and an acid pipe (7); A tank support A (2) and a tank support B (4) are fixed to the top of the pickling box (8), and a naphtha tank (3) and an acid tank (5) are fixed to the tank support A (2) and the tank support B (4), respectively; A naphtha pipe (1) and an acid pipe (7) are installed at the bottom of the naphtha tank (3) and the acid tank (5), respectively, and a solenoid valve (6) is installed on each of the naphtha pipe (1) and the acid pipe (7); The lower ends of the naphtha pipe (1) and the acid liquid pipe (7) extend into the inner side of the pickling box (8) and are correspondingly connected to the two support pipes (21) in a sealed and rotatable manner.

8. The naphtha raw material desulfurization washing equipment according to any one of claims 1 to 7, characterized in that: The plugging and lifting assembly comprises a return pipe (10), a lifting pump (12), a bottom plugging plate (14), a connecting plate (17), a transmission frame (19), a horizontal telescopic cylinder (20) and a push-pull rod (22); A lifting pump (12) is provided at the bottom of the pickling tank (8), a return pipe (10) is installed at the outlet of the lifting pump (12), the other end of the return pipe (10) is fixed to the side wall of the housing (26), and the return pipe (10) is connected to the area between the upper and lower branches of the transmission belt (29); Bottom plugging plates (14) for sealing the bottom opening are slidably provided on the front and rear sides of the bottom of the shell (26); a plurality of push-pull rods (22) are fixed to the two sides of the bottom plugging plates (14) that are away from each other; the push-pull rods (22) are slidably extended from the side wall of the pickling box (8) and are fixedly connected to the connecting plate (17); An L-shaped transmission frame (19) is fixed to the middle of the connecting plate (17), and a horizontal telescopic cylinder (20) is also fixed to the vertical portion of the transmission frame (19). The cylinder body of the horizontal telescopic cylinder (20) is fixedly connected to the outer wall of the pickling box (8).

9. The naphtha raw material desulfurization washing equipment according to claim 8, characterized in that: A guide rod (18) slidably connected to the connecting plate (17) is also fixed on the outer wall of the pickling box (8); The inner bottom of the pickling tank (8) is a conical structure with the middle part tilted downward, the lifting pump (12) is fixed in the middle position of the inner bottom of the pickling tank (8), and a discharge port A (13) is also provided in the middle of the bottom of the pickling tank (8).

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