Synthesis gas pretreatment tower

By adopting a combined structure of a rotating shaft and agitating rod leaf in the synthesis gas pretreatment tower, uniform mixing of crude synthesis gas, water and cooling water is achieved, and the problem of unsatisfactory mixing effect in the prior art is solved, the pretreatment effect and treatment efficiency are improved, and the black water collection optimization process is optimized, which reduces production costs and equipment corrosion risks.

CN222758192UActive Publication Date: 2025-04-15AEROSPACE HYDROGEN CANGZHOU GAS CO LTD
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Patent Information

Application Number
CN202421303510.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-07
Publication Date
2025-04-15
Estimated Expiration
2034-06-07

AI Technical Summary

Technical Problem

When mixing crude synthesis gas, water and cooling water, the mixing effect of existing synthesis gas pretreatment towers is not ideal, resulting in incomplete reactions of substances and low treatment efficiency, and insufficient design of the stirring mechanism, which is prone to vortex and turbulence, affecting the mixing uniformity, increasing energy consumption and production costs.

Method used

A syngas pretreatment tower is designed, adopting a combined structure of a rotating shaft and agitating rod leaf. Through the combination of agitating rod and agitating blade, a uniform mixture of coarse synthesis gas, water and cooling water is achieved, and the effective collection of black water is achieved through the coordination of a check valve and a black water collection box.

Benefits of technology

Through uniform mixing, it promotes sufficient contact and reaction between substances, improves pretreatment effect, reduces impurity residues, improves subsequent treatment efficiency, reduces energy consumption and production costs, and optimizes the process through black water collection to reduce equipment corrosion risks and extend equipment life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of synthesis gas pretreatment, and discloses a synthesis gas pretreatment tower which comprises a working table, a tower body is fixedly mounted in the working table, a rotating shaft is movably mounted in the tower body, one end of the rotating shaft completely penetrates through the interior of the tower body, a stirring rod is fixedly mounted on the outer surface of the rotating shaft, and the stirring rod is movably mounted in the tower body. Stirring blades are fixedly mounted on the outer surface of the stirring rod, and a tower plate section and a demister section are fixedly mounted in the tower body. Compared with the traditional pretreatment tower, the pretreatment tower disclosed by the utility model is convenient for uniformly mixing crude synthesis gas, water and cooling water through the matching of the stirring rods and the stirring blades, so that the uniform mixing not only promotes the full contact and reaction among substances and improves the pretreatment effect, but also can accelerate the removal of impurities and improve the subsequent treatment efficiency; the stirring enhances the mass and heat transfer process, increases the reaction rate, and eliminates the local concentration and temperature difference.
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Description

Technical Field

[0001] The utility model relates to the technical field of synthesis gas pretreatment, and more specifically, to a synthesis gas pretreatment tower. Background Art

[0002] A synthesis gas pretreatment tower is a device specially used for treating synthesis gas, which mainly includes a tower body, a treatment device and a conversion device. The treatment device includes a water bath section, a distributor section, a tower plate section and a defoamer section installed in the tower body from bottom to top. A synthesis gas outlet channel is installed at the top of the tower body, and the water bath section contains cooling water. The crude synthesis gas passes through these sections in sequence to obtain the treated synthesis gas. When the synthesis gas pretreatment tower of the prior art mixes the crude synthesis gas, water and cooling water, the mixing effect is often not ideal. The difference in physical properties of the three makes it difficult to fully and evenly mix them, which in turn affects the completeness of the material reaction and the processing efficiency. The insufficient design of the stirring mechanism is also a problem. Poor stirring makes it impossible for impurities to react fully. Improper stirring speed is more likely to produce eddies and turbulence, destroying the mixing uniformity. In addition, local concentration and temperature differences often occur inside the pretreatment tower, which may cause side reactions and safety hazards. Uneven mixing and inefficient processing also lead to increased energy consumption, increased production costs, and reduced process economy. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a synthesis gas pretreatment tower, which has the advantage of uniform mixing.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a synthesis gas pretreatment tower, comprising a workbench, a tower body is fixedly installed inside the workbench, a rotating shaft is movably installed inside the tower body, and one end of the rotating shaft completely penetrates the inside of the tower body, a stirring rod is fixedly installed on the outer surface of the rotating shaft, a stirring blade is fixedly installed on the outer surface of the stirring rod, a tower plate section and a demister section are fixedly installed inside the tower body, and the demister section is below the tower plate section;

[0005] A driven wheel is fixedly installed at one end of the rotating shaft, a motor is fixedly installed at the bottom of the tower body, a driving wheel is fixedly installed at one end of the motor, a transmission belt is connected between the driving wheel and the driven wheel, a cooling water inlet and a synthesis gas inlet channel are fixedly installed on the outer surface of the tower body, and the synthesis gas inlet channel is presented below the cooling water inlet, and a synthesis gas outlet channel is fixedly installed on the top of the tower body.

[0006] As a preferred technical solution of the utility model, a mounting plate is fixedly installed at the bottom of the workbench, a positioning hole is opened inside the mounting plate, a limit block is movably installed inside the positioning hole, a black water collection box is fixedly installed at one end of the limit block, a universal wheel is fixedly installed on the top of the black water collection box, and the universal wheel presents four shapes of the same size;

[0007] A slide groove is provided inside the black water collection box, a sealing plate is movably installed inside the slide groove, a push rod is fixedly installed on the outer surface of the black water collection box, a one-way valve is movably installed inside the tower body, and a funnel is fixedly installed on the outer surface of the one-way valve.

[0008] As a preferred technical solution of the utility model, a limiting groove is provided inside the workbench, and a tool box is movably installed inside the limiting groove.

[0009] As a preferred technical solution of the utility model, a support plate is fixedly installed inside the workbench, a support column is fixedly installed between two of the support plates, and the support columns and support plates are grouped in pairs, with a total of two groups on the top of the workbench.

[0010] As a preferred technical solution of the utility model, a motor protection cover is fixedly installed on the outer surface of the motor, and heat dissipation holes are opened inside the motor protection cover.

[0011] As a preferred technical solution of the utility model, the stirring rods and stirring blades are arranged in pairs, and the stirring rods and stirring blades are arranged in a circular array on the outside of the rotating shaft.

[0012] The working principle and beneficial effects of the utility model are:

[0013] 1. Compared with the traditional pretreatment tower, the utility model has a pretreatment tower that facilitates uniform mixing of crude synthesis gas, water and cooling water through the cooperation between the stirring rod and the stirring blade. This uniform mixing not only promotes sufficient contact and reaction between substances and improves the pretreatment effect, but also accelerates the removal of impurities and improves the efficiency of subsequent treatment. Stirring strengthens the mass transfer and heat transfer process, improves the reaction rate, and eliminates local concentration and temperature differences to ensure the smooth progress of the pretreatment process. In addition, stirring pretreatment optimizes the subsequent process, meets the requirements of purification, separation, etc., and reduces production costs. At the same time, stirring reduces equipment deposition and blockage, improves equipment operating efficiency and life, and lays a solid foundation for improving the overall process performance.

[0014] 2. Compared with the traditional pretreatment tower, the utility model facilitates the collection of black water through the cooperation between the one-way valve and the black water collection box, which is helpful for environmental protection, reduces the pollution of harmful substances to soil, water and air, protects the stability of the ecosystem, and can also realize resource recovery, extract valuable components such as dissolved gases and catalyst residues in black water, and improve economic benefits. At the same time, collecting black water helps to analyze the pretreatment effect, optimize process parameters, and improve pretreatment efficiency. Timely collection of black water can also reduce the risk of equipment corrosion, extend equipment life, and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the three-dimensional appearance structure of the back of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the tower body of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the black water collection box of the utility model;

[0019] Figure 5 It is a schematic diagram of the three-dimensional appearance structure of the utility model when viewed from top.

[0020] In the figure: 1. workbench; 2. tower body; 3. synthesis gas outlet channel; 4. cooling water inlet; 5. synthesis gas inlet channel; 6. support plate; 7. transmission belt; 8. motor protection cover; 9. motor; 10. support column; 11. push rod; 12. black water collection box; 13. mounting plate; 14. limit groove; 15. tool box; 16. rotating shaft; 17. stirring rod; 18. stirring blade; 19. tower plate section; 20. demister section; 21. driving wheel; 22. driven wheel; 23. one-way valve; 24. funnel; 25. slideway; 26. universal wheel; 27. sealing plate; 28. limit block; 29. ​​positioning hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 5As shown, the utility model provides a synthesis gas pretreatment tower, comprising a workbench 1, a tower body 2 is fixedly installed inside the workbench 1, a rotating shaft 16 is movably installed inside the tower body 2, and one end of the rotating shaft 16 completely penetrates the inside of the tower body 2, a stirring rod 17 is fixedly installed on the outer surface of the rotating shaft 16, and a stirring blade 18 is fixedly installed on the outer surface of the stirring rod 17, a tower plate section 19 and a demister section 20 are fixedly installed inside the tower body 2, and the demister section 20 is below the tower plate section 19;

[0023] A driven wheel 22 is fixedly mounted on one end of the rotating shaft 16, a motor 9 is fixedly mounted on the bottom of the tower body 2, a driving wheel 21 is fixedly mounted on one end of the motor 9, a transmission belt 7 is connected between the driving wheel 21 and the driven wheel 22, a cooling water inlet 4 and a synthesis gas inlet channel 5 are fixedly mounted on the outer surface of the tower body 2, and the synthesis gas inlet channel 5 is presented below the cooling water inlet 4, and a synthesis gas outlet channel 3 is fixedly mounted on the top of the tower body 2.

[0024] The staff injects the raw synthesis gas into the interior of the tower body 2 through the synthesis gas inlet channel 5, and then adds cooling water into the interior of the tower body 2 through the synthesis gas inlet channel 5, and then turns on the motor 9, and drives the driving wheel 21 to rotate inside the tower body 2 through the motor 9, and then drives the transmission belt 7 and the driven wheel 22 to rotate through the driving wheel 21, and then drives the rotating shaft 16 to rotate inside the tower body 2 through the black water collection box 12, and drives the stirring rod 17 to rotate through the rotating shaft 16, and then drives the stirring blade 18 through the stirring rod 17 to mix the synthesis gas, and then passes through the tower plate section 19 and the demister section 20 from bottom to top to obtain the treated synthesis gas, and then enters the conversion device through the synthesis gas outlet channel 3, thereby completing the treatment of the synthesis gas.

[0025] The crude synthesis gas is injected into the tower body 2 through the synthesis gas inlet channel 5, and cooling water is added into the tower body 2 through the synthesis gas inlet channel 5, and then the motor 9 is turned on, and the driving wheel 21 is driven by the motor 9 to rotate inside the tower body 2, and the driving belt 7 and the driven wheel 22 are driven by the driving wheel 21 to rotate, and the rotating shaft 16 is driven to rotate inside the tower body 2 through the black water collection box 12, and the stirring rod 17 is driven by the rotating shaft 16 to rotate, and the stirring blade 18 is driven by the stirring rod 17, and then the synthesis gas passes through the tower plate section 19 and the demister section 20 from bottom to top to obtain the treated synthesis gas, and then enters the conversion through the synthesis gas outlet channel 3. Device, compared with the traditional pretreatment tower, the pretreatment tower does not, through the cooperation between the stirring rod 17 and the stirring blade 18, it is convenient to evenly mix the crude synthesis gas, water and cooling water. This even mixing not only promotes sufficient contact and reaction between substances and improves the pretreatment effect, but also accelerates the removal of impurities and improves the efficiency of subsequent treatment. Stirring strengthens the mass transfer and heat transfer process, improves the reaction rate, and eliminates local concentration and temperature differences, ensuring the smooth progress of the pretreatment process. In addition, stirring pretreatment optimizes the subsequent process, meets the requirements of purification, separation, etc., and reduces production costs. At the same time, stirring reduces equipment deposition and blockage, improves equipment operating efficiency and life, and lays a solid foundation for improving the overall process performance.

[0026] The bottom of the workbench 1 is fixedly mounted with a mounting plate 13, a positioning hole 29 is provided inside the mounting plate 13, a limit block 28 is movably installed inside the positioning hole 29, a black water collection box 12 is fixedly mounted on one end of the limit block 28, a universal wheel 26 is fixedly mounted on the top of the black water collection box 12, and the universal wheel 26 presents four shapes of the same size;

[0027] A slide groove 25 is provided inside the black water collection box 12, a sealing plate 27 is movably installed inside the slide groove 25, a push rod 11 is fixedly installed on the outer surface of the black water collection box 12, a one-way valve 23 is movably installed inside the tower body 2, and a funnel 24 is fixedly installed on the outer surface of the one-way valve 23.

[0028] The staff needs to collect the black water produced by the fusion of water and synthesis gas, and needs to move the black water collection box 12 to the bottom of the workbench 1. By holding the push rod 11, the black water collection box 12 is pushed by the push rod 11 to drive the universal wheel 26 to move, and the universal wheel 26 is driven by the universal wheel 26 to slowly approach the mounting plate 13. The black water collection box 12 drives the limit block 28 to slowly penetrate the interior of the positioning hole 29, and the limit block 28 is rotated on the outer surface of the mounting plate 13. The black water collection box 12 is fixed by the limit block 28, and then the sealing plate 27 is held by hand to slowly pull the sealing plate 27 out of the interior of the slide 25. Now the one-way valve 23 is opened, so that the black water slowly enters the interior of the black water collection box 12 through the one-way valve 23 and the funnel 24, and the black water is collected by the black water collection box 12, thereby completing the collection of black water.

[0029] The black water generated by the fusion of water and synthesis gas needs to be collected. The black water collection box 12 needs to be moved to the bottom of the workbench 1. The push rod 11 is held by hand, and the black water collection box 12 is pushed by the push rod 11 to drive the universal wheel 26 to move slowly. The black water collection box 12 drives the limit block 28 to slowly penetrate the interior of the positioning hole 29, and the limit block 28 is rotated on the outer surface of the mounting plate 13. The black water collection box 12 is fixed by the limit block 28. The sealing plate 27 is held by hand and slowly pulled out of the interior of the slide 25. Now the one-way valve 23 is opened, so that the black water slowly enters the black water through the one-way valve 23 and the funnel 24. Black water is collected inside the collection box 12 through the black water collection box 12. Compared with the traditional pretreatment tower, the pretreatment tower facilitates the collection of black water through the cooperation between the one-way valve 23 and the black water collection box 12, which is helpful for environmental protection, reduces the pollution of soil, water and air by harmful substances, protects the stability of the ecosystem, and can also achieve resource recovery, extract valuable components such as dissolved gases and catalyst residues in black water, and improve economic benefits. At the same time, collecting black water helps to analyze the pretreatment effect, optimize process parameters, and improve pretreatment efficiency. Timely collection of black water can also reduce the risk of equipment corrosion, extend equipment life, and reduce maintenance costs.

[0030] A limiting groove 14 is provided inside the workbench 1 , and a tool box 15 is movably installed inside the limiting groove 14 .

[0031] By holding the tool box 15, the tool box 15 is slowly placed into the limiting groove 14. The limiting groove 14 has the advantage of fixing the tool box 15. By adding the tool box 15, the operator can quickly obtain the required items when needed without leaving the workbench 1 to search elsewhere. This greatly reduces the time for obtaining tools and improves work efficiency.

[0032] A support plate 6 is fixedly installed inside the workbench 1 , a support column 10 is fixedly installed between two support plates 6 , and the support columns 10 and the support plates 6 are grouped in pairs, with a total of two groups on the top of the workbench 1 .

[0033] The support plate 6 and the support column 10 cooperate to support the tower body 2, thereby ensuring the overall stability of the workbench 1 and preventing it from shaking, tilting or collapsing during operation. In particular, when processing high-pressure and high-temperature synthesis gas, the support structure can ensure that the workbench 1 withstands various internal and external forces and maintains the integrity and safety of the structure.

[0034] A motor protection cover 8 is fixedly mounted on the outer surface of the motor 9 , and heat dissipation holes are provided inside the motor protection cover 8 .

[0035] Since the motor protection cover 8 is provided with heat dissipation holes, it is convenient to dissipate heat inside the motor 9, thereby improving the heat dissipation efficiency inside the motor 9, ensuring the stability of the motor 9 during operation, and improving the use efficiency of the motor 9.

[0036] The stirring rods 17 and the stirring blades 18 are arranged in pairs, and the stirring rods 17 and the stirring blades 18 are arranged in a circular array on the outer surface of the rotating shaft 16 .

[0037] Since the stirring rod 17 and the stirring blades 18 are arranged in a circular array on the rotating shaft 16, the stirring rod 17 and the stirring blades 18 are driven by the rotating shaft 16 to rotate inside the tower body 2, which facilitates the full fusion of the synthesis gas and water, ensures full contact and mixing between the synthesis gas and water, and makes the mass transfer process between gas and liquid more efficient.

[0038] The working principle and use process of this utility model:

[0039] The staff injects the raw synthesis gas into the interior of the tower body 2 through the synthesis gas inlet channel 5, and then adds cooling water into the interior of the tower body 2 through the synthesis gas inlet channel 5, and then turns on the motor 9, and drives the driving wheel 21 to rotate inside the tower body 2 through the motor 9, and then drives the transmission belt 7 and the driven wheel 22 to rotate through the driving wheel 21, and then drives the rotating shaft 16 to rotate inside the tower body 2 through the black water collection box 12, and drives the stirring rod 17 to rotate through the rotating shaft 16, and then drives the stirring blade 18 through the stirring rod 17 to mix the synthesis gas, and then passes through the tower plate section 19 and the demister section 20 from bottom to top to obtain the treated synthesis gas, and then enters the conversion device through the synthesis gas outlet channel 3, thereby completing the treatment of the synthesis gas.

[0040] The staff needs to collect the black water produced by the fusion of water and synthesis gas, and needs to move the black water collection box 12 to the bottom of the workbench 1. By holding the push rod 11, the black water collection box 12 is pushed by the push rod 11 to drive the universal wheel 26 to move, and the universal wheel 26 is driven by the universal wheel 26 to slowly approach the mounting plate 13. The black water collection box 12 drives the limit block 28 to slowly penetrate the interior of the positioning hole 29, and the limit block 28 is rotated on the outer surface of the mounting plate 13. The black water collection box 12 is fixed by the limit block 28, and then the sealing plate 27 is held by hand to slowly pull the sealing plate 27 out of the interior of the slide 25. Now the one-way valve 23 is opened, so that the black water slowly enters the interior of the black water collection box 12 through the one-way valve 23 and the funnel 24, and the black water is collected by the black water collection box 12, thereby completing the collection of black water.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A synthesis gas pretreatment tower, comprising a workbench (1), characterized in that: A tower body (2) is fixedly mounted inside the workbench (1), a rotating shaft (16) is movably mounted inside the tower body (2), and one end of the rotating shaft (16) completely penetrates the inside of the tower body (2), a stirring rod (17) is fixedly mounted on the outer surface of the rotating shaft (16), and a stirring blade (18) is fixedly mounted on the outer surface of the stirring rod (17), a tower plate section (19) and a demister section (20) are fixedly mounted inside the tower body (2), and the demister section (20) is below the tower plate section (19); A driven wheel (22) is fixedly mounted on one end of the rotating shaft (16); a motor (9) is fixedly mounted on the bottom of the tower body (2); a driving wheel (21) is fixedly mounted on one end of the motor (9); a driving belt (7) is connected between the driving wheel (21) and the driven wheel (22); a cooling water inlet (4) and a synthesis gas inlet channel (5) are fixedly mounted on the outer surface of the tower body (2), and the synthesis gas inlet channel (5) is located below the cooling water inlet (4); and a synthesis gas outlet channel (3) is fixedly mounted on the top of the tower body (2).

2. A synthesis gas pretreatment tower according to claim 1, characterized in that: A mounting plate (13) is fixedly mounted on the bottom of the workbench (1), a positioning hole (29) is formed inside the mounting plate (13), a limit block (28) is movably mounted inside the positioning hole (29), a black water collection box (12) is fixedly mounted on one end of the limit block (28), a universal wheel (26) is fixedly mounted on the top of the black water collection box (12), and the universal wheel (26) presents four shapes of the same size; A slide groove (25) is provided inside the black water collection box (12), a sealing plate (27) is movably installed inside the slide groove (25), a push rod (11) is fixedly installed on the outer surface of the black water collection box (12), a one-way valve (23) is movably installed inside the tower body (2), and a funnel (24) is fixedly installed on the outer surface of the one-way valve (23).

3. A synthesis gas pretreatment tower according to claim 1, characterized in that: A limiting groove (14) is provided inside the workbench (1), and a tool box (15) is movably installed inside the limiting groove (14).

4. A synthesis gas pretreatment tower according to claim 1, characterized in that: A support plate (6) is fixedly installed inside the workbench (1), and a support column (10) is fixedly installed between two of the support plates (6), and the support columns (10) and the support plates (6) are arranged in pairs, with a total of two groups on the top of the workbench (1).

5. The synthesis gas pretreatment tower according to claim 1, characterized in that: A motor protection cover (8) is fixedly mounted on the outer surface of the motor (9), and heat dissipation holes are provided inside the motor protection cover (8).

6. A synthesis gas pretreatment tower according to claim 1, characterized in that: The stirring rods (17) and stirring blades (18) are arranged in pairs, and the stirring rods (17) and stirring blades (18) are arranged in a circular array on the outer surface of the rotating shaft (16).