Desulfurization device for MCP process

Abstract

According to the technical scheme, the desulfurization device is characterized in that the desulfurization device comprises a desulfurization bin, an air inlet pipe is arranged outside the desulfurization bin, an exhaust pipe is arranged on the outer circle wall face of the desulfurization bin, an installation disc is arranged in the desulfurization bin, a plurality of nozzles are arranged on the bottom face of the installation disc, and the nozzles are arranged in a cross shape; the rotating assembly is arranged on the top face of the mounting disc and used for rotating the mounting disc, through the arrangement of a rotating shaft, a liquid inlet pipe and a rotating shaft rotating sleeve, an absorbent can be continuously and stably supplied to the nozzle, and when a driving motor is started, the driving motor drives a second belt wheel to rotate; the second belt pulley drives the first belt pulley to rotate through the belt, so that the rotating shaft is driven to rotate, the rotating shaft drives the mounting disc in the desulfurization bin to rotate, the spraying range of the nozzles is increased, a small number of nozzles meet the spraying requirement, the burden of the pump is reduced, and the risk of nozzle blockage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization technology, in particular to a desulfurization device used in an MCP process. Background Art

[0002] The MCP process is a heavy oil catalytic cracking process that uses specific catalysts and reaction conditions to break down heavy oil molecules into smaller molecules. At the same time, by adjusting the operating conditions, it selectively produces target products. The desulfurization device is mainly used to remove pollutants from the gas, especially sulfur dioxide (SO2) and hydrogen sulfide (H2S), to meet environmental protection requirements and prevent equipment corrosion.

[0003] When the current desulfurization device is in use, in order to ensure a more even distribution in the desulfurization tower and reduce reaction dead corners, more nozzles are installed. As a result, during later maintenance, too many nozzles require higher energy to maintain the liquid injection pressure, which increases the burden on the pump, resulting in increased energy consumption and an increased risk of nozzle blockage. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a desulfurization device for an MCP process, which solves the problems mentioned in the background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] The desulfurization device used in the MCP process includes: a desulfurization chamber, an air inlet pipe is provided on the outside of the desulfurization chamber, an exhaust pipe is provided on the outer circular wall of the desulfurization chamber, a mounting plate is provided inside the desulfurization chamber, a plurality of nozzles are provided on the bottom surface of the mounting plate, and the nozzles are arranged in a cross shape; a rotating assembly, which is provided on the top surface of the mounting plate and is used to rotate the mounting plate.

[0007] Preferably, the rotating assembly includes: a rotating shaft, which is fixedly mounted on the top surface of the mounting disk, a rotating hole is opened on the top surface of the desulfurization bin, the rotating shaft passes through the rotating hole and extends to the outside, a liquid inlet pipe is provided on one side of the desulfurization bin, the liquid inlet pipe and the rotating shaft are rotatably sleeved together, the liquid inlet pipe is rotatably connected to the mounting disk, a diaphragm pump is provided at one end of the liquid inlet pipe, a first pulley is provided on the outside of the rotating shaft, a driving motor is fixedly mounted on the top surface of the desulfurization bin, the shaft of the driving motor is fixedly connected to a second pulley, belts are provided on the outside of the first pulley and the second pulley, and a purge air duct is provided on the top surface of the turntable.

[0008] Preferably, a driving shaft is fixedly mounted on the bottom surface of the mounting plate, two rotating rings are fixedly connected to the outside of the driving shaft, and a plurality of cutting blades are fixedly mounted on the outer circumferential wall of the rotating ring.

[0009] Preferably, two guide plates are fixedly installed on the inner circular wall of the desulfurization bin.

[0010] Preferably, a regeneration chamber is fixedly installed on the bottom surface of the desulfurization chamber, and a reflux hole is opened on the inner bottom surface of the desulfurization chamber, and the reflux hole is connected to the regeneration chamber.

[0011] Preferably, a nucleotide catalyst is added to the desulfurization solution sprayed by the nozzle.

[0012] In summary, the present invention has the following beneficial effects:

[0013] By setting a rotating shaft, when the desulfurization gas enters the desulfurization chamber, the diaphragm pump is turned on to continuously and steadily supply absorbent to the nozzle through the liquid inlet pipe. At the same time, when the drive motor is started, the drive motor drives the second pulley to rotate, and the second pulley drives the first pulley to rotate through the belt, thereby driving the rotating shaft to rotate. The rotating shaft drives the mounting plate in the desulfurization chamber to rotate, so that the spraying range of the cross-arranged nozzles is larger, so that a small number of nozzles can meet the spraying needs, which is beneficial to reduce the burden on the pump and reduce the risk of nozzle clogging.

[0014] When the mounting disc rotates, it drives the cutting blade on the rotating ring to rotate. When the gas passes through the cutting blade, the cutting blade cuts off or separates the particulate matter and heavy metals in the gas by physical means, which is beneficial to improving the efficiency and stability of the desulfurization process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the rotating shaft structure of the utility model;

[0017] Figure 3 It is a plan view schematic diagram of the desulfurization bin of the utility model.

[0018] Figure numerals: 1. Desulfurization chamber; 2. Air inlet pipe; 3. Exhaust pipe; 4. Mounting plate; 5. Nozzle; 6. Rotating hole; 7. Rotating shaft; 8. Liquid inlet pipe; 9. Diaphragm pump; 10. First pulley; 11. Driving motor; 12. Second pulley; 13. Belt; 14. Driving shaft; 15. Rotating ring; 16. Cutting blade; 17. Guide plate; 18. Return hole; 19. Regeneration chamber; 20. Purge air duct. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] refer to Figure 1 、 Figure 2 and Figure 3 The desulfurization device for the MCP process includes: a desulfurization chamber 1, an air inlet pipe 2 is provided on the outside of the desulfurization chamber 1, an exhaust pipe 3 is provided on the outer wall of the desulfurization chamber 1, a mounting plate 4 is provided inside the desulfurization chamber 1, and a plurality of nozzles 5 are provided on the bottom surface of the mounting plate 4, and the nozzles 5 are arranged in a cross shape; a rotating assembly is provided on the top surface of the mounting plate 4, and is used to rotate the mounting plate 4;

[0021] By setting the nozzle 5, when the desulfurized gas enters the desulfurization chamber 1, the absorbent is sprayed through the nozzle 5 to desulfurize the gas. The few nozzles 5 on the bottom of the mounting plate 4 are arranged in a cross manner, which can achieve uniform spraying of the absorbent, enhance gas-liquid contact, and improve the desulfurization effect.

[0022] As a further solution of the present utility model, the rotating assembly includes: a rotating shaft 7, which is fixedly mounted on the top surface of the mounting disk 4, a rotating hole 6 is opened on the top surface of the desulfurization bin 1, the rotating shaft 7 passes through the rotating hole 6 and extends to the outside, a liquid inlet pipe 8 is provided on one side of the desulfurization bin 1, the liquid inlet pipe 8 and the rotating shaft 7 are rotatably sleeved together, the liquid inlet pipe 8 is rotatably connected to the mounting disk 4, a diaphragm pump 9 is provided at one end of the liquid inlet pipe 8, a first pulley 10 is provided on the outside of the rotating shaft 7, a driving motor 11 is fixedly mounted on the top surface of the desulfurization bin 1, the shaft of the driving motor 11 is fixedly connected to a second pulley 12, and a belt 13 is provided on the outside of the first pulley 10 and the second pulley 12;

[0023] By setting the rotating shaft 7, the liquid inlet pipe 8 and the rotating sleeve of the rotating shaft 7, the absorbent can be continuously and stably supplied to the nozzle 5. When the drive motor 11 is started, the drive motor 11 drives the second pulley 12 to rotate, and the second pulley 12 drives the first pulley 10 to rotate through the belt 13, thereby driving the rotating shaft 7 to rotate. The rotating shaft 7 drives the mounting disk 4 in the desulfurization bin 1 to rotate. There is a gap between the turntable 4 and the wall of the device. The purge air duct 20 can prevent the flue gas from entering the top of the turntable 4, causing the dust in the flue gas to settle on the turntable, affecting the rotation balance of the turntable 4, and increasing the spraying range of the nozzle 5, so that a small number of nozzles 5 can meet the spraying needs, which is beneficial to reduce the burden on the pump and reduce the risk of clogging of the nozzle 5.

[0024] As a further solution of the present invention, a drive shaft 14 is fixedly mounted on the bottom surface of the mounting plate 4, and two swivels 15 are fixedly connected to the outside of the drive shaft 14, and a plurality of cutting blades 16 are fixedly mounted on the outer circumferential wall of the swivel 15;

[0025] By setting the cutting blade 16, when the mounting plate 4 rotates, the cutting blade 16 on the rotating ring 15 is driven to rotate. When the gas passes through the cutting blade 16, the cutting blade 16 cuts off or separates the particulate matter and heavy metals in the gas by physical methods, which is beneficial to improving the efficiency and stability of the desulfurization process.

[0026] As a further solution of the present invention, two guide plates 17 are fixedly installed on the inner wall of the desulfurization bin 1;

[0027] By setting the guide plate 17, the guide plate 17 can effectively guide the flow of gas or liquid in the desulfurization chamber 1. The guide plate is tilted downward by 30 degrees. During the spraying process of the desulfurizer, the liquid will flow into the recovery chamber below along the inclined guide plate. There is no liquid at the guide plate, which reduces corrosion and scaling. Scaling will increase the wear of the rotating rod.

[0028] As a further solution of the present invention, a regeneration chamber 19 is fixedly installed on the bottom surface of the desulfurization chamber 1, and a reflux hole 18 is opened on the inner bottom surface of the desulfurization chamber 1, and the reflux hole 18 is connected to the regeneration chamber 19;

[0029] By setting up the regeneration bin 19, the bottom of the desulfurization bin is set to be conical, and the reflux hole 18 is set at the bottom of the cone, which is conducive to the recovery of the agent and avoids the existence of a dead zone at the bottom of the desulfurization bin. A scaling area will be formed over a long period of time, and liquid will exist in it, which will accelerate the corrosion of the equipment. The absorbent that has not fully reacted can be refluxed to the regeneration bin 19 for regeneration treatment, thereby improving the utilization rate of the absorbent, thereby improving the utilization rate of the absorbent and reducing operating costs.

[0030] As a further solution of the present invention, a nucleotide catalyst is added to the desulfurization solution sprayed by the nozzle 5;

[0031] By setting a nucleotide catalyst, the desulfurization reaction rate is increased and the amount of absorbent used is reduced.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A desulfurization device for an MCP process, characterized in that: include: A desulfurization chamber (1), wherein an air inlet pipe (2) is provided on the outside of the desulfurization chamber (1), an exhaust pipe (3) is provided on the outer circular wall of the desulfurization chamber (1), a mounting plate (4) is provided on the inside of the desulfurization chamber (1), and a plurality of nozzles (5) are provided on the bottom surface of the mounting plate (4), and the nozzles (5) are arranged in a cross shape; A rotating assembly is provided on the top surface of the mounting plate (4) and is used to rotate the mounting plate (4).

2. The desulfurization device for MCP process according to claim 1, characterized in that: The rotating assembly comprises: A rotating shaft (7) is fixedly mounted on the top surface of the mounting plate (4); a rotating hole (6) is opened on the top surface of the desulfurization bin (1); the rotating shaft (7) passes through the rotating hole (6) and extends to the outside; a liquid inlet pipe (8) is provided on one side of the desulfurization bin (1); the liquid inlet pipe (8) and the rotating shaft (7) are rotatably sleeved together; the liquid inlet pipe (8) is rotatably connected to the mounting plate (4); a diaphragm pump (9) is provided at one end of the liquid inlet pipe (8); a first pulley (10) is provided on the outside of the rotating shaft (7); a driving motor (11) is fixedly mounted on the top surface of the desulfurization bin (1); a shaft of the driving motor (11) is fixedly connected to a second pulley (12); belts (13) are provided on the outside of the first pulley (10) and the second pulley (12); and a purge air duct (20) is provided on the top surface of the mounting plate (4).

3. The desulfurization device for MCP process according to claim 2, characterized in that: A driving shaft (14) is fixedly mounted on the bottom surface of the mounting plate (4), two rotating rings (15) are fixedly connected to the outside of the driving shaft (14), and a plurality of cutting blades (16) are fixedly mounted on the outer circumferential wall surface of the rotating ring (15).

4. The desulfurization device for MCP process according to claim 1, characterized in that: Two guide plates (17) are fixedly mounted on the inner circular wall of the desulfurization bin (1).

5. The desulfurization device for MCP process according to claim 1, characterized in that: A regeneration chamber (19) is fixedly mounted on the bottom surface of the desulfurization chamber (1), and a reflux hole (18) is provided on the inner bottom surface of the desulfurization chamber (1), wherein the reflux hole (18) is connected to the regeneration chamber (19).

6. The desulfurization device for MCP process according to claim 1, characterized in that: A nucleotide catalyst is added to the desulfurization solution sprayed by the nozzle (5).

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