FCC (fluid catalytic cracking) gasoline efficient desulfurization device

Abstract

The invention discloses an efficient FCC (fluid catalytic cracking) gasoline desulfurization device, which belongs to the technical field of gasoline processing, and comprises a treatment cylinder, an inlet / outlet is formed in the top end of the treatment cylinder, a cover plate is hinged in the inlet / outlet, a shaft rod is rotatably connected to the center of the side wall of the bottom end of the treatment cylinder, and a blade plate b positioned in the treatment cylinder is fixed on the side surface of the shaft rod; the output end of the driving motor is fixed to the bottom end of the blade plate b, an auxiliary stirring assembly is arranged in the treatment barrel, a cleaning assembly is arranged on the shaft rod, and a knocking assembly is arranged outside the treatment barrel. Materials close to the inner side wall of the treatment barrel are fully stirred through the auxiliary stirring assembly, the problem that local materials in the treatment barrel are not fully stirred and mixed is avoided, the side wall of the treatment barrel is continuously knocked through the knocking assembly, so that the side wall of the treatment barrel is vibrated, and the treatment effect is improved. And thus, material particles on the inner side wall of the treatment barrel are shaken off into the raw materials to participate in stirring and mixing, and the sufficiency of desulfurization processing is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of gasoline processing, and in particular relates to a high-efficiency desulfurization device for FCC gasoline. Background Art

[0002] FCC gasoline, or catalytic cracking gasoline, is an important automotive fuel extracted from crude oil through the catalytic cracking process. It has a high octane number and good combustion performance, and is a key part of the blending components of automotive gasoline. The production process of FCC gasoline is relatively complex, and it needs to go through multiple links such as raw material pretreatment, catalytic cracking reaction, product separation and refining. Due to its wide source of raw materials and strong adaptability, FCC gasoline occupies a pivotal position in the global refining industry. FCC gasoline desulfurization is a process for removing sulfides from fluid catalytic cracking (FCC) gasoline. It was developed to meet the strict requirements of modern environmental regulations on gasoline sulfur content. FCC gasoline is an important component of my country's automotive gasoline, and its sulfur content is usually high, which to a certain extent limits its application in high-quality, low-emission gasoline.

[0003] For example, Chinese patent publication number: CN216799666U discloses a full-fraction catalytic gasoline selective hydrodesulfurization device, including a mixing box, a No. 1 water-passing rod is symmetrically rotatably connected inside the mixing box, a rotating mechanism is provided on the outer side of the No. 1 water-passing rod, and the rotating mechanism is connected to the mixing box, a connecting box is provided on the top of the mixing box, a top box is provided on the top of the connecting box, a cleaning mechanism is provided inside the top box, two No. 1 rotary joints are provided inside the connecting box, and the No. 1 rotary joint is connected to the No. 1 water-passing rod, and the No. 2 water-passing rod drives the No. 1 water-passing rod to rotate, and by adding the rotating mechanism, the No. 1 bevel gear drives the stirring rod to rotate through the No. 2 bevel gear.

[0004] There are still deficiencies in the above application. In the above application, the stirring rod rotates unidirectionally, which easily forms a unidirectional vortex, affecting the stirring effect. At the same time, the stirring rod does not stir and mix the raw materials near the inner wall sufficiently, affecting the overall gasoline desulfurization processing efficiency.

[0005] Therefore, there is a need for an FCC gasoline high-efficiency desulfurization device to solve the problems raised in the above background technology. Summary of the invention

[0006] The object of the present invention is to provide a FCC gasoline high-efficiency desulfurization device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an FCC gasoline high-efficiency desulfurization device, comprising a treatment cylinder, an inlet and an outlet are provided at the top of the treatment cylinder, a cover plate is hinged inside the inlet and an outlet, a shaft is rotatably connected to the center of the side wall of the bottom end of the treatment cylinder, a blade b located inside the treatment cylinder is fixed on the side of the shaft, a plurality of blades b are provided and the plurality of blades b are distributed in a ring shape, a driving motor is provided at the bottom of the treatment cylinder, an output end of the driving motor is fixed to the bottom end of the blade b, an auxiliary stirring assembly connected to the shaft in a transmission manner is provided inside the treatment cylinder, a cleaning assembly is provided on the shaft, and a knocking assembly is provided outside the treatment cylinder.

[0008] It should be noted in the scheme that the auxiliary stirring assembly includes a gear ring fixed to the inner wall of the processing cylinder and located at the top of the processing cylinder, a connecting rod is fixed on the side of the shaft, a joint seat is fixed on the end of the connecting rod away from the shaft, a first shaft is rotatably connected to the joint seat, a plurality of annularly distributed blades a are fixed on the side of the first shaft, and a gear meshing with the gear ring is fixed to the top of the first shaft.

[0009] It is further worth mentioning that a scraper in contact with the inner wall of the treatment cylinder is fixed on one end of the plurality of blades a in a row away from the shaft.

[0010] It should be further explained that the cleaning component includes a liquid-passing cavity opened inside the shaft and arranged along the length direction of the shaft, a groove arranged along the length direction of the shaft is opened on the side of the shaft, and a liquid spray hole connected to the liquid-passing cavity is opened on the side of the groove, and the liquid spray holes are provided in plurality and are evenly spaced.

[0011] As a preferred embodiment, a water inlet connected to the liquid passage cavity is provided at the top end of the shaft, and an end plug is adapted to be disposed in the water inlet.

[0012] As a preferred embodiment, a cover plate is inserted into the groove, and a long screw arranged along the length direction of the groove is threadedly connected to the cover plate, and the bottom end of the long screw is threadedly connected to the bottom end of the groove.

[0013] As a preferred embodiment, the knocking assembly includes a metal plate fixed on the output shaft of the driving motor, an arc-shaped protrusion a is fixed on the top of the metal plate, an external ring plate is fixed on the outer wall of the processing cylinder, an arc-shaped protrusion b that slides with the arc-shaped protrusion a is fixed on the side of the external ring plate, and a plurality of arc-shaped protrusions b are provided and the plurality of arc-shaped protrusions b are distributed in a ring shape.

[0014] As a preferred embodiment, a plurality of symmetrically distributed leg rods are fixed on the outer side wall of the bottom end of the processing cylinder, a bottom plate is commonly fixed to the bottom ends of the plurality of leg rods, a feed pipe and a discharge pipe connected to the interior of the processing cylinder are fixed on the outer side wall of the processing cylinder, and a handle is fixed on the outer side wall of the cover plate.

[0015] As a preferred embodiment, a through hole is opened on the side surface of the blade b, and a plurality of through holes are provided and the plurality of through holes are equidistantly distributed.

[0016] As a preferred embodiment, a scraper plate in contact with the inner wall of the bottom end of the processing cylinder is fixed to the bottom end of the shaft, and a slope arranged along the length direction of the scraper plate is provided at the bottom end of the scraper plate.

[0017] Compared with the prior art, the FCC gasoline high-efficiency desulfurization device provided by the present invention has at least the following beneficial effects:

[0018] (1) The auxiliary stirring component is used to fully stir the material near the inner wall of the treatment tube to avoid the problem of insufficient stirring and mixing of the local materials inside the treatment tube. The blade b and the auxiliary stirring component are used to efficiently and fully stir and mix the materials at all positions inside the treatment tube, further improving the efficiency of fully and evenly mixing the materials and improving the overall desulfurization efficiency.

[0019] (2) The side wall of the treatment tube is continuously knocked by the knocking assembly, so that the side wall of the treatment tube is vibrated, thereby shaking off the material particles on the inner wall of the treatment tube into the raw material to participate in stirring and mixing, further improving the adequacy of the desulfurization process;

[0020] (3) After desulfurization is completed, the cleaning liquid is introduced into the cleaning component, and the shaft is driven to rotate by the driving motor, so that the cleaning liquid is evenly sprayed onto the inner wall of the treatment tube through the cleaning component, and the inner wall of the treatment tube is efficiently cleaned, effectively improving the cleaning efficiency of the treatment tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the partial structure of the striking component of the present invention;

[0023] Figure 3 Schematic diagram of the internal structure of the treatment tube of the present invention Figure 1 ;

[0024] Figure 4 The schematic diagram of the local structure of the auxiliary stirring component of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 5Schematic diagram of the internal structure of the treatment tube of the present invention Figure 2 ;

[0026] Figure 6 The schematic diagram of the local structure of the auxiliary stirring component of the present invention is shown in FIG. Figure 2 ;

[0027] Figure 7 It is a schematic diagram of the local structure of the scraper plate of the present invention;

[0028] Figure 8 for Figure 7 The enlarged structural diagram at A in the middle;

[0029] Fig. 9 It is a schematic diagram of the partial structure of the cleaning component of the present invention;

[0030] Fig.10 It is a schematic diagram of the local structure of the striking component of the present invention.

[0031] In the figure: 1. Auxiliary stirring assembly; 101. First shaft; 102. Blade a; 103. Scraper; 104. Gear; 105. Gear ring; 106. Connecting rod; 107. Connector seat; 2. Cleaning assembly; 201. Groove; 202. Spray hole; 203. Water inlet; 204. End plug; 205. Cover plate; 206. Long screw; 207. Liquid passage chamber; 3. Knocking assembly; 301. Metal plate; 302. Arc-shaped protrusion a; 303. External ring plate; 304. Arc-shaped protrusion b; 4. Processing cylinder; 5. Inlet and outlet; 6. Cover plate; 7. Handle; 8. Feed pipe; 9. Discharge pipe; 10. Driving motor; 11. Leg rod; 12. Bottom plate; 13. Shaft; 14. Blade b; 15. Through hole; 16. Scraper; 17. Inclined surface. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the embodiments.

[0033] See also Figure 1-10The present invention provides an FCC gasoline high-efficiency desulfurization device, comprising a treatment cylinder 4, an inlet and outlet 5 is provided at the top of the treatment cylinder 4, a cover plate 6 is hingedly connected to the inlet and outlet 5, a shaft 13 is rotatably connected to the center of the side wall of the bottom end of the treatment cylinder 4, a blade b14 located inside the treatment cylinder 4 is fixed on the side of the shaft 13, a plurality of blades b14 are provided and the plurality of blades b14 are distributed in an annular shape, a driving motor 10 is provided at the bottom of the treatment cylinder 4, an output end of the driving motor 10 is fixed to the bottom end of the blade b14, and a shaft 13 is provided inside the treatment cylinder 4. The auxiliary stirring assembly 1 is connected to the shaft 13 by transmission, and a cleaning assembly 2 is arranged on the shaft 13, and a knocking assembly 3 is arranged on the outside of the treatment tube 4; when in use, the cover plate 6 is opened, and the gasoline raw material and the desulfurization catalyst are poured into the treatment tube 4 through the inlet and outlet 5, and then the cover plate 6 is closed, and the driving motor 10 is started to work, and the shaft 13 is driven to rotate by the output end of the driving motor 10, so that the gasoline raw material and the desulfurization catalyst in the treatment tube 4 are stirred by the shaft 13. The gasoline raw material and the desulfurization catalyst are mixed and desulfurized. When the shaft 13 rotates, the shaft 13 drives the auxiliary stirring assembly 1 to work, and the auxiliary stirring assembly 1 is used to fully stir the material near the inner wall of the treatment tube 4 to avoid the problem of insufficient stirring and mixing of the local materials in the treatment tube 4, so that the materials at all positions in the treatment tube 4 are efficiently and fully stirred and mixed through the cooperation of the blades b14 and the auxiliary stirring assembly 1, so as to further improve the efficiency of fully and evenly mixing the materials and improve the overall desulfurization efficiency; the knocking assembly 3 is driven to work by the driving motor 10, and the cleaning assembly 2 is used to stir the gasoline raw material and the desulfurization catalyst in the treatment tube 4. The knocking component 3 continuously knocks the side wall of the processing cylinder 4, so that the side wall of the processing cylinder 4 vibrates, thereby shaking off the material particles on the inner wall of the processing cylinder 4 into the raw material to participate in the stirring and mixing, and further improves the adequacy of the desulfurization process; when the desulfurization is completed, the cleaning liquid is passed into the cleaning component 2, thereby driving the shaft 13 to rotate through the driving motor 10, so that the cleaning liquid is evenly sprayed onto the inner wall of the processing cylinder 4 through the cleaning component 2, and the inner wall of the processing cylinder 4 is efficiently cleaned, effectively improving the cleaning efficiency of the processing cylinder 4.

[0034] Further as Figure 4 , Figure 5 and Figure 6As shown, it is worth specifically explaining that the auxiliary stirring assembly 1 includes a toothed ring 105 fixed to the inner wall of the processing cylinder 4 and located at the top of the processing cylinder 4, a connecting rod 106 is fixed on the side of the shaft 13, a joint seat 107 is fixed on the end of the connecting rod 106 away from the shaft 13, and a first shaft 101 is rotatably connected to the joint seat 107, a plurality of annularly distributed blades a102 are fixed on the side of the first shaft 101, and a gear 104 meshing with the toothed ring 105 is fixed on the top of the first shaft 101; when the shaft 13 rotates, the shaft 13 drives the joint seat 107 to rotate synchronously through the connecting rod 106, so that The first shaft 101 rotates around the shaft 13, and the gear 104 and the gear ring 105 cooperate to drive the first shaft 101 to rotate, so that the first shaft 101 rotates around the shaft 13 and rotates on itself at the same time, so that the materials near the inner wall of the treatment tube 4 are fully stirred through multiple blades a102, avoiding the problem of insufficient stirring and mixing of local materials inside the treatment tube 4, so that the materials at all positions inside the treatment tube 4 are efficiently and fully stirred and mixed through the cooperation of the blade b14 and the blade a102, further improving the efficiency of sufficient and uniform mixing of materials and improving the overall desulfurization efficiency.

[0035] Further as Figure 6 As shown, it is worth explaining in detail that a scraper 103 in contact with the inner wall of the treatment cylinder 4 is fixed on one end of a plurality of blades a102 in a row away from the shaft 13; during specific operation, the inner wall of the treatment cylinder 4 is scraped by the scraper 103.

[0036] Further as Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, it is worth specifically explaining that the cleaning component 2 includes a liquid passage chamber 207 opened inside the shaft 13 and arranged along the length direction of the shaft 13, a groove 201 arranged along the length direction of the shaft 13 is opened on the side of the shaft 13, and a spray hole 202 connected to the liquid passage chamber 207 is opened on the side of the groove 201, and a plurality of spray holes 202 are provided and the plurality of spray holes 202 are equidistantly distributed; when the desulfurization is completed, the cleaning liquid is introduced into the liquid passage chamber 207, so that the cleaning liquid is evenly and finely sprayed onto the inner wall of the treatment tube 4 through the plurality of spray holes 202, and the shaft 13 is driven to rotate by the driving motor 10, so that the cleaning liquid is rotated and comprehensively sprayed onto the inner wall of the treatment tube 4 through the spray holes 202, and the inner wall of the treatment tube 4 is efficiently cleaned, thereby effectively improving the cleaning efficiency of the treatment tube 4.

[0037] Further as Figure 8 and Fig. 9As shown, it is worth explaining in detail that a water inlet 203 connected to the liquid cavity 207 is opened at the top end of the shaft 13, and an end plug 204 is adapted in the water inlet 203; during specific operation, the water inlet 203 is blocked by the set end plug 204, and when cleaning is required, the water pipe is threadedly connected to the water inlet 203 by taking out the end plug 204.

[0038] Further Fig. 9 As shown, it is worth explaining in detail that a cover plate 205 is inserted into the groove 201, and a long screw 206 arranged along the length direction of the groove 201 is threadedly connected to the cover plate 205, and the bottom end of the long screw 206 is threadedly connected to the bottom end of the groove 201; during specific operation, the spray hole 202 is covered by the set cover plate 205 to prevent materials from entering the spray hole 202.

[0039] Further Figure 1 , Figure 2 and Figure 5 As shown, it is worth specifically explaining that the knocking assembly 3 includes a metal plate 301 fixed on the output shaft of the driving motor 10, an arc-shaped protrusion a302 is fixed on the top of the metal plate 301, an outer ring plate 303 is fixed on the outer wall of the processing tube 4, and an arc-shaped protrusion b304 that slides with the arc-shaped protrusion a302 is fixed on the side of the outer ring plate 303, and a plurality of arc-shaped protrusions b304 are arranged and the plurality of arc-shaped protrusions b304 are distributed in a ring shape; the output end of the driving motor 10 drives the metal plate 301 to rotate, so that the arc-shaped protrusion a302 and the arc-shaped protrusion b304 rotate relative to each other, so that the arc-shaped protrusion a302 continuously knocks on the side wall of the processing tube 4 through the cooperation of the metal plate 301, the arc-shaped protrusion a302 and the arc-shaped protrusion b304, so that the side wall of the processing tube 4 vibrates, so that the material particles on the inner wall of the processing tube 4 are shaken off into the raw material to participate in stirring and mixing, thereby further improving the adequacy of the desulfurization process.

[0040] This scheme has the following working process: the shaft 13 drives the joint seat 107 to rotate synchronously through the connecting rod 106, so that the first shaft 101 rotates around the shaft 13, so that the gear 104 and the gear ring 105 cooperate to drive the first shaft 101 to rotate, so that the first shaft 101 rotates around the shaft 13 and rotates on its own at the same time, so that the materials near the inner wall of the treatment tube 4 are fully stirred through multiple blades a102, avoiding the problem of insufficient stirring and mixing of local materials inside the treatment tube 4, so that the materials at all positions inside the treatment tube 4 are efficiently and fully stirred, mixed and desulfurized through the cooperation of the blade b14 and the blade a102, and the metal plate 301 is driven to rotate through the output end of the drive motor 10, The arc-shaped protrusion a302 and the arc-shaped protrusion b304 rotate relative to each other, so that the arc-shaped protrusion a302 continuously knocks the side wall of the processing cylinder 4 through the cooperation of the metal plate 301, the arc-shaped protrusion a302 and the arc-shaped protrusion b304, so that the side wall of the processing cylinder 4 vibrates, thereby shaking off the material particles on the inner wall of the processing cylinder 4 into the raw material for stirring and mixing; when the desulfurization is completed, the cleaning liquid is passed into the liquid passage cavity 207, so that the cleaning liquid is evenly and finely sprayed onto the inner wall of the processing cylinder 4 through multiple spray holes 202, and the shaft 13 is driven to rotate by the driving motor 10, so that the cleaning liquid is rotated and comprehensively sprayed onto the inner wall of the processing cylinder 4 through the spray holes 202, so that the inner wall of the processing cylinder 4 is efficiently cleaned.

[0041] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that a plurality of symmetrically distributed supporting leg rods 11 are fixed on the outer side wall of the bottom end of the processing cylinder 4, a bottom plate 12 is commonly fixed to the bottom ends of the plurality of supporting leg rods 11, a feed pipe 8 and a discharge pipe 9 connected to the inside of the processing cylinder 4 are fixed on the outer side wall of the processing cylinder 4, and a handle 7 is fixed on the outer side wall of the cover plate 6; during specific operation, the auxiliary material is input into the inside of the processing cylinder 4 through the provided feed pipe 8, and the material inside the processing cylinder 4 is discharged through the provided discharge pipe 9.

[0042] Further as Figure 4 As shown, it is worth explaining in detail that a through hole 15 is opened on the side of the blade b14, and a plurality of through holes 15 are provided and the plurality of through holes 15 are evenly distributed; during specific operation, the plurality of through holes 15 are provided to improve the adequacy of the blade b14 in stirring the material inside the processing cylinder 4.

[0043] Further as Figure 6 and Figure 7As shown, it is worth explaining in detail that the bottom end of the shaft 13 is provided with a scraper plate 16 which contacts the inner wall of the bottom end of the processing cylinder 4, and the bottom end of the scraper plate 16 is provided with an inclined surface 17 arranged along the length direction of the scraper plate 16; during specific operation, the inner wall of the bottom end of the processing cylinder 4 is scraped by the scraper plate 16 to avoid the accumulation of materials on the inner wall of the bottom end of the processing cylinder 4.

[0044] In summary: the material near the inner wall of the treatment tube 4 is fully stirred by the auxiliary stirring component 1 to avoid the problem of insufficient stirring and mixing of local materials inside the treatment tube 4, so that the materials at all positions inside the treatment tube 4 are efficiently and fully stirred and mixed through the cooperation of the blade b14 and the auxiliary stirring component 1, further improving the efficiency of sufficient and uniform mixing of the materials and improving the overall desulfurization efficiency; the knocking component 3 is driven to work by the driving motor 10, and the side wall of the treatment tube 4 is continuously knocked by the knocking component 3, so that the side wall of the treatment tube 4 is vibrated, so that the material particles on the inner wall of the treatment tube 4 are shaken off into the raw material to participate in stirring and mixing, and further improve the adequacy of the desulfurization process; when the desulfurization is completed, the cleaning liquid is passed into the cleaning component 2, so that the shaft 13 is driven to rotate by the driving motor 10, so that the cleaning liquid is evenly sprayed onto the inner wall of the treatment tube 4 through the cleaning component 2, and the inner wall of the treatment tube 4 is efficiently cleaned, effectively improving the cleaning efficiency of the treatment tube 4.

[0045] The drive motor 10 can be purchased on the market. The drive motor 10 is equipped with a power supply, which is a mature technology in this field and has been fully disclosed, so it will not be repeated in the specification.

Claims

1. An FCC gasoline high-efficiency desulfurization device, comprising a treatment cylinder (4), characterized in that: The top of the treatment cylinder (4) is provided with an inlet and outlet (5), a cover plate (6) is hingedly connected inside the inlet and outlet (5), a shaft (13) is rotatably connected to the center of the side wall of the bottom end of the treatment cylinder (4), a blade b (14) located inside the treatment cylinder (4) is fixed on the side of the shaft (13), a plurality of blades b (14) are provided and the plurality of blades b (14) are distributed in an annular shape, a driving motor (10) is provided at the bottom of the treatment cylinder (4), an output end of the driving motor (10) is fixed to the bottom end of the blade b (14), an auxiliary stirring component (1) connected to the shaft (13) is provided inside the treatment cylinder (4), a cleaning component (2) is provided on the shaft (13), and a knocking component (3) is provided outside the treatment cylinder (4).

2. The FCC gasoline high-efficiency desulfurization device according to claim 1, characterized in that: The auxiliary stirring assembly (1) comprises a toothed ring (105) fixed to the inner wall of the treatment cylinder (4) and located at the top of the treatment cylinder (4); a connecting rod (106) is fixed on the side of the shaft (13); a joint seat (107) is fixed on the end of the connecting rod (106) away from the shaft (13); a first shaft (101) is rotatably connected to the joint seat (107); a plurality of blades a (102) distributed in an annular shape are fixed on the side of the first shaft (101); and a gear (104) meshingly connected to the toothed ring (105) is fixed on the top of the first shaft (101).

3. The FCC gasoline high-efficiency desulfurization device according to claim 2, characterized in that: A scraper (103) in contact with the inner wall of the treatment cylinder (4) is fixed on one end of the plurality of blades a (102) arranged in a row and away from the shaft (13).

4. The FCC gasoline high-efficiency desulfurization device according to claim 1, characterized in that: The cleaning component (2) comprises a liquid passage cavity (207) opened inside the shaft (13) and arranged along the length direction of the shaft (13); a groove (201) arranged along the length direction of the shaft (13) is opened on the side of the shaft (13); a liquid spray hole (202) connected to the liquid passage cavity (207) is opened on the side of the groove (201); a plurality of liquid spray holes (202) are provided and the plurality of liquid spray holes (202) are distributed at equal intervals.

5. The FCC gasoline high-efficiency desulfurization device according to claim 4, characterized in that: The top end of the shaft (13) is provided with a water inlet (203) which is in communication with the liquid passage cavity (207), and an end plug (204) is adapted to be disposed in the water inlet (203).

6. The FCC gasoline high-efficiency desulfurization device according to claim 5, characterized in that: A cover plate (205) is inserted into the groove (201), and the cover plate (205) is internally threadedly connected to a long screw rod (206) arranged along the length direction of the groove (201), and the bottom end of the long screw rod (206) is threadedly connected to the bottom end of the groove (201).

7. The FCC gasoline high-efficiency desulfurization device according to claim 1, characterized in that: The knocking assembly (3) comprises a metal plate (301) fixed on the output shaft of the driving motor (10), an arc-shaped protrusion a (302) is fixed on the top of the metal plate (301), an outer ring plate (303) is fixed on the outer side wall of the processing cylinder (4), an arc-shaped protrusion b (304) that slidably cooperates with the arc-shaped protrusion a (302) is fixed on the side of the outer ring plate (303), and a plurality of the arc-shaped protrusions b (304) are provided and the plurality of arc-shaped protrusions b (304) are distributed in a ring shape.

8. A FCC gasoline high-efficiency desulfurization device according to claim 1, characterized in that: A plurality of symmetrically distributed leg rods (11) are fixed to the outer wall of the bottom end of the processing cylinder (4), and a bottom plate (12) is commonly fixed to the bottom ends of the plurality of leg rods (11). A feed pipe (8) and a discharge pipe (9) connected to the interior of the processing cylinder (4) are fixed to the outer wall of the processing cylinder (4), and a handle (7) is fixed to the outer wall of the cover plate (6).

9. The FCC gasoline high-efficiency desulfurization device according to claim 8, characterized in that: A through hole (15) is provided on the side surface of the blade b (14), and a plurality of through holes (15) are provided and the plurality of through holes (15) are distributed at equal intervals.

10. The FCC gasoline high-efficiency desulfurization device according to claim 1, characterized in that: A scraper plate (16) in contact with the inner wall of the bottom end of the treatment cylinder (4) is fixed at the bottom end of the shaft (13), and an inclined surface (17) arranged along the length direction of the scraper plate (16) is provided at the bottom end of the scraper plate (16).

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