Reaction kettle for producing desulfurization and denitrification auxiliary agent

Abstract

The utility model belongs to the technical field of reaction kettles, and particularly discloses a reaction kettle for producing desulfurization and denitrification auxiliaries, which comprises a kettle body, and a stirring component is arranged in the kettle body; the stirring assembly comprises a stirring rod, the stirring rod is rotatably connected with the kettle body, and the outer wall of the stirring rod is fixedly connected with a plurality of stirring blades; the outer wall of the stirring rod is fixedly connected with a plurality of connecting plates, a scraping plate is arranged between every two connecting plates, and the plurality of scraping plates are in contact with the inner wall of the kettle body; wherein the two scraping plates are obliquely arranged, an upper cover plate is connected above the kettle body through bolts, and a motor is arranged at the top of the upper cover plate. Through the arrangement of the stirring assembly, the stirring blades and the scraping plates synchronously rotate, not only is the macromixing of materials realized through the stirring blades, but also the materials adhered to the inner wall of the kettle body are continuously scraped through the scraping plates; and dead angles caused by wall sticking of high-viscosity materials in a traditional process are avoided, the uniformity of material components is ensured, and the production quality of the desulfurization and denitrification additive is improved.

Description

Technical Field

[0001] This application relates to the field of reaction vessel technology, and more specifically, to a reaction vessel for producing desulfurization and denitrification aids. Background Technology

[0002] As core materials for industrial flue gas treatment, desulfurization and denitrification additives place extremely high demands on the stability, mass transfer efficiency, and safety of reaction equipment during their production process. The reactor, as a key device in additive synthesis, undertakes core functions such as material mixing, reaction temperature control, and dispersion emulsification. Its performance directly affects the uniformity of additive components, the yield of active substances, and production costs. With the increasing stringency of environmental standards, desulfurization and denitrification additives are trending towards higher efficiency and more complex formulations.

[0003] Currently, reactors used in the production of desulfurization and denitrification additives suffer from wall adhesion problems when processing high-viscosity materials. Taking desulfurizers containing high-molecular-weight surfactants as an example, these materials easily adhere to the reactor wall, forming a wall-adhesive layer. Traditional agitators lack sufficient scraping ability against the reactor wall, making it difficult to effectively remove the adhering material. This results in a heat transfer and reaction dead zone in the wall-adhesive area, preventing the material from participating in the main fluid circulation and mixing, thus affecting the uniformity of the additive composition. Furthermore, the long-term accumulation of wall-adhesive material easily hardens and cokes, hindering heat transfer efficiency and requiring frequent shutdowns for reactor cleaning, leading to extended production cycles and reduced equipment utilization. Utility Model Content

[0004] To address the aforementioned issues, this application provides a reaction vessel for producing desulfurization and denitrification aids.

[0005] The technical solution provided in this application for a reaction vessel used in the production of desulfurization and denitrification aids is as follows:

[0006] A reaction vessel for producing desulfurization and denitrification aids includes a vessel body, and a stirring assembly is provided inside the vessel body.

[0007] The stirring assembly includes a stirring rod, which is rotatably connected to the vessel body, and multiple stirring blades are fixedly connected to the outer wall of the stirring rod;

[0008] Multiple connecting plates are fixedly connected to the outer wall of the stirring rod, and a scraper is provided between every two connecting plates. All the scrapers are in contact with the inner wall of the vessel.

[0009] Two of the scrapers are set at an angle.

[0010] Through the above technical solution, the stirring blades and scrapers of the stirring assembly rotate synchronously. The stirring blades achieve macroscopic mixing of materials, while the scrapers continuously remove materials adhering to the inner wall of the reactor. This avoids the formation of dead corners due to high viscosity materials sticking to the wall in traditional processes, ensuring the uniformity of material composition and improving the production quality of desulfurization and denitrification additives.

[0011] Furthermore, an upper cover plate is bolted to the top of the vessel body, and a motor is installed on the top of the upper cover plate. One end of the stirring rod extends through to the outside of the upper cover plate.

[0012] Furthermore, two transmission gears are provided above the top cover plate. One transmission gear is fixedly connected to the outer end of the stirring rod, and the other transmission gear is fixedly connected to the rotating shaft at the output end of the motor.

[0013] Furthermore, a rotary joint is connected to the outer end of the stirring rod, and a liquid addition pipe is connected to the top end of the rotary joint.

[0014] Furthermore, both ends of the stirring rod are connected to connecting rods, and one end of each connecting rod is connected to multiple round tubes, each of which has an elastic one-way diaphragm inside.

[0015] Through the above technical solution, the distribution of connecting rods and multiple circular tubes enables the liquid catalyst to be quickly and evenly dispersed to any position in the reactor, fully contacting the reactants and reacting rapidly, greatly shortening the reaction time and improving the efficiency of the entire desulfurization and denitrification additive production process.

[0016] Furthermore, a feed inlet is provided at one end of the vessel body, and a sealing plate is provided inside the feed inlet. A water inlet pipe is provided inside the vessel body, and one end of the water inlet pipe extends through to the outside of the vessel body.

[0017] Furthermore, a discharge port is connected to the bottom of the vessel, and a discharge valve is provided at one end of the discharge port.

[0018] Furthermore, each scraper is connected to its corresponding connecting plate by bolts.

[0019] The above technical solution allows for quick disassembly and replacement of the scraper blade through bolted connection.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] (1) By setting up the stirring assembly, the stirring blades and scraper rotate synchronously. The stirring blades achieve macroscopic mixing of materials, and the scraper continuously removes the materials adhering to the inner wall of the reactor, avoiding the formation of dead corners due to high viscosity materials sticking to the wall in traditional processes, ensuring the uniformity of material composition, and improving the production quality of desulfurization and denitrification additives.

[0022] This invention, through the distribution of connecting rods and multiple circular tubes, allows the liquid catalyst to be quickly and evenly dispersed to any position in the reactor, fully contacting the reactants and reacting rapidly, greatly shortening the reaction time and improving the efficiency of the entire desulfurization and denitrification additive production process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a bottom view of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the vessel body of this utility model;

[0026] Figure 4 This is a schematic diagram of the connection structure between the connecting plate and the scraper of this utility model;

[0027] Figure 5 For the present utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0028] Explanation of reference numerals in the attached drawings: 1. Kettle body; 2. Feed inlet; 3. Sealing plate; 4. Top cover plate; 5. Motor; 6. Water inlet pipe; 7. Transmission gear; 8. Rotary joint; 9. Liquid addition pipe; 10. Discharge port; 11. Discharge valve; 12. Stirring rod; 13. Stirring blade; 14. Connecting plate; 15. Scraper; 16. Connecting rod; 17. Round tube; 18. Elastic unidirectional diaphragm. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figures 1-5 A reaction vessel for producing desulfurization and denitrification aids includes a vessel body 1, and a stirring assembly is provided inside the vessel body 1;

[0031] The stirring assembly includes a stirring rod 12, which is rotatably connected to the vessel body 1, and multiple stirring blades 13 are fixedly connected to the outer wall of the stirring rod 12;

[0032] Multiple connecting plates 14 are fixedly connected to the outer wall of the stirring rod 12, and a scraper 15 is provided between every two connecting plates 14. All the scrapers 15 are in contact with the inner wall of the vessel body 1.

[0033] Two of the scrapers 15 are set at an angle.

[0034] Reference Figures 3-4The upper cover plate 4 is bolted to the top of the vessel body 1. A motor 5 is installed on the top of the upper cover plate 4. One end of the stirring rod 12 extends through to the outside of the upper cover plate 4. Two transmission gears 7 are installed on the top of the upper cover plate 4. One transmission gear 7 is fixedly connected to the outer end of the stirring rod 12, and the other transmission gear 7 is fixedly connected to the shaft of the output end of the motor 5.

[0035] After the motor 5 starts, it drives the transmission gear 7 fixedly connected to it to rotate through the output shaft. The two meshing transmission gears 7 transmit power to the transmission gear 7 fixedly connected to the outer end of the stirring rod 12, so that the stirring rod 12 rotates in the vessel body 1. The stirring blades 13 on its outer wall stir the material in the vessel body 1 to achieve mixing and dispersion. At the same time, the stirring rod 12 rotates synchronously through multiple scrapers 15 fixed by the connecting plate 14. The scrapers 15 in contact with the inner wall of the vessel body 1 continuously scrape off the adhering material. Among them, two inclined scrapers 15 scrape off the inner wall at the bottom of the vessel body 1.

[0036] By setting up the stirring components, the stirring blades 13 and the scraper 15 rotate synchronously. The stirring blades 13 achieve macroscopic mixing of materials, while the scraper 15 continuously scrapes off the materials adhering to the inner wall of the vessel body 1. This avoids the formation of dead corners due to high viscosity materials sticking to the wall in traditional processes, ensuring the uniformity of material composition and improving the production quality of desulfurization and denitrification additives.

[0037] Two inclined scrapers 15 are used to scrape off the material on the bottom inner wall of the vessel body 1, which solves the problem of easy sedimentation and insufficient agitation of the bottom material in traditional stirring equipment. It is especially suitable for scenarios such as denitrification catalyst slurry containing solid particles, reducing the frequency of shutdown for cleaning the vessel and improving production efficiency.

[0038] The vessel body 1 and the upper cover plate 4 are connected by bolts, which makes it easy to open the equipment to inspect and maintain the internal components, reducing the difficulty of operation and maintenance costs.

[0039] Reference Figures 1-5 The outer end of the stirring rod 12 is connected to a rotary joint 8, the top end of the rotary joint 8 is connected to a liquid addition pipe 9, both ends of the stirring rod 12 are connected to a connecting rod 16, one end of each of the two connecting rods 16 is connected to a plurality of round tubes 17, and the interior of each of the plurality of round tubes 17 is provided with an elastic one-way diaphragm 18.

[0040] When it is necessary to add liquid catalyst into the reactor, the operator injects the external liquid catalyst through the liquid injection pipe 9 via the external drive mechanism. The liquid injection pipe 9 is connected to the rotary joint 8. The special design of the rotary joint 8 allows the liquid catalyst to flow smoothly from the liquid injection pipe 9 into the interior of the stirring rod 12 while the stirring rod 12 is continuously rotating.

[0041] As the stirring rod 12 rotates, the liquid catalyst flows inside the stirring rod 12 and is distributed to each circular tube 17 through the connecting rod 16 connecting both ends. The elastic one-way diaphragm 18 inside the circular tube 17 allows the liquid catalyst to flow out of the circular tube 17 and into the reactants inside the vessel body 1, but prevents the liquid inside the vessel body 1 from flowing back into the stirring rod 12 through the circular tube 17.

[0042] With the distribution of connecting rod 16 and multiple circular tubes 17, the liquid catalyst can be quickly and evenly dispersed to any position in the reactor body 1, fully contacting the reactants and reacting rapidly, greatly shortening the reaction time and improving the efficiency of the entire desulfurization and denitrification additive production process.

[0043] Reference Figures 1-3 The vessel body 1 has a feed inlet 2 at one end, a sealing plate 3 inside the feed inlet 2, a water inlet pipe 6 inside the vessel body 1, one end of the water inlet pipe 6 extending through to the outside of the vessel body 1, and a discharge outlet 10 connected to the bottom end of the vessel body 1, with a discharge valve 11 at one end of the discharge outlet 10.

[0044] The water inlet pipe 6 is connected to an external water source, and clean water can be injected before the reaction. Then, the material can be put into the feed port 2 of the vessel body 1 after the sealing plate 3 is opened. When closed, the internal seal is ensured by the sealing plate 3. Stirring is carried out. After the reaction is completed, the discharge valve 11 of the discharge port 10 is opened, and the product is discharged under the action of gravity. Closing the valve will stop the discharge.

[0045] This reactor is existing technology and all the necessary functions are already present. The parts not shown in the figure will not be described in detail here.

[0046] Reference Figures 3-4 Each scraper 15 is connected to the corresponding connecting plate 14 by bolts.

[0047] The bolted connection design allows for quick disassembly and replacement of the scraper 15. When the scraper 15 wears down due to long-term scraping (such as thinning of the edges or corrosion of the material), the upper cover plate 4 can be removed, the stirring assembly taken out, and the bolts loosened to replace the scraper 15 separately.

[0048] Working Principle: Before the reaction begins, clean water is injected into the reactor body 1 through the water inlet pipe 6 to pre-clean the reactor, removing impurities and residual materials from previous batches from the inner wall and stirring components. After cleaning, clean water is injected again. After injecting a measured amount of clean water, the sealing plate 3 of the feed inlet 2 is opened, and the raw materials required for the production of desulfurization and denitrification additives are added into the reactor body 1. The sealing plate 3 is then closed to ensure a seal inside the reactor. Next, the motor 5 is started. The shaft at the output end of the motor 5 drives the transmission gear 7, which is fixedly connected to it, to rotate. The power is transmitted to the stirring rod 12 through two meshing transmission gears 7, causing the stirring rod 12 to start rotating inside the reactor body 1. The stirring blades 13 on the outer wall of the stirring rod 12 rotate with it, stirring the materials inside the reactor to achieve macroscopic mixing and dispersion. At the same time, multiple scrapers 15 fixed on the stirring rod 12 rotate synchronously. The scrapers 15 in contact with the inner wall of the reactor body 1 continuously scrape off the materials adhering to the reactor wall. Two inclined scrapers 15 specifically scrape off the materials on the bottom inner wall of the reactor body 1 to prevent the bottom material from settling.

[0049] When liquid catalyst needs to be added, the catalyst is injected through the liquid injection pipe 9 by an external drive mechanism. The rotary joint 8 allows the stirring rod 12 to rotate continuously while the liquid catalyst flows into the stirring rod 12. The liquid catalyst is distributed to multiple circular tubes 17 by the connecting rods 16 at both ends of the stirring rod 12. The elastic one-way diaphragm 18 in the circular tube 17 opens under the action of liquid pressure, so that the catalyst is evenly dispersed in the material in the vessel. After the liquid addition is stopped, the elastic one-way diaphragm 18 prevents the material from flowing back.

[0050] During the stirring and liquid addition process, the materials are fully mixed and reacted under the action of stirring blades 13 and scrapers 15. After the reaction is completed, the discharge valve 11 of the discharge port 10 is opened, and the product in the reactor is discharged from the discharge port 10 under the action of gravity. Closing the discharge valve 11 can stop the discharge.

[0051] If the vessel body 1 needs to be cleaned, clean water is injected again through the water inlet pipe 6, and the cleaning process is repeated.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A reaction vessel for producing desulfurization and denitrification aids, characterized in that, include: The vessel body (1) is equipped with a stirring assembly inside; The stirring assembly includes a stirring rod (12), which is rotatably connected to the vessel body (1), and a plurality of stirring blades (13) are fixedly connected to the outer wall of the stirring rod (12). The outer wall of the stirring rod (12) is fixedly connected with a plurality of connecting plates (14), and a scraper (15) is provided between every two connecting plates (14), and the plurality of scrapers (15) are in contact with the inner wall of the vessel body (1); Two of the scrapers (15) are arranged at an angle.

2. The reaction vessel for producing desulfurization and denitrification aids according to claim 1, characterized in that: The upper cover plate (4) is bolted to the top of the vessel body (1). A motor (5) is provided on the top of the upper cover plate (4). One end of the stirring rod (12) extends through to the outside of the upper cover plate (4).

3. The reaction vessel for producing desulfurization and denitrification aids according to claim 2, characterized in that: Two transmission gears (7) are provided above the upper cover plate (4). One of the transmission gears (7) is fixedly connected to the outer end of the stirring rod (12), and the other transmission gear (7) is fixedly connected to the shaft of the output end of the motor (5).

4. The reaction vessel for producing desulfurization and denitrification aids according to claim 1, characterized in that: The outer end of the stirring rod (12) is connected to a rotary joint (8), and the top end of the rotary joint (8) is connected to a liquid addition pipe (9).

5. The reaction vessel for producing desulfurization and denitrification aids according to claim 1, characterized in that: Both ends of the stirring rod (12) are connected to a connecting rod (16), and one end of each of the two connecting rods (16) is connected to a plurality of round tubes (17), and the interior of each of the plurality of round tubes (17) is provided with an elastic one-way diaphragm (18).

6. The reaction vessel for producing desulfurization and denitrification aids according to claim 1, characterized in that: The vessel body (1) has a feed inlet (2) at one end, and a sealing plate (3) is provided inside the feed inlet (2). The vessel body (1) has a water inlet pipe (6) inside, and one end of the water inlet pipe (6) extends through to the outside of the vessel body (1).

7. The reaction vessel for producing desulfurization and denitrification aids according to claim 1, characterized in that: The bottom end of the vessel body (1) is connected to a discharge port (10), and one end of the discharge port (10) is provided with a discharge valve (11).

8. The reaction vessel for producing desulfurization and denitrification aids according to claim 1, characterized in that: Each of the scrapers (15) is connected to the corresponding connecting plate (14) by bolts.

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