Cascade reactor with stirring function

Abstract

The utility model relates to the technical field of cascade reactors, in particular to a cascade reactor with a stirring function, which comprises a plurality of groups of cylinders, flanges are fixedly connected to two ends of each group of cylinders, adjacent cylinders are hermetically mounted through the flanges, an upper cover plate is hermetically and fixedly connected to the upper end of the uppermost cylinder through the flange, and a lower cover plate is fixedly connected to the lower end of the uppermost cylinder through the flange. The bottom of the lowermost cylinder is fixedly connected with a lower cover plate through a flange in a sealing manner; the middle parts of the plurality of groups of cylinders are fixedly connected with partition plates I; multiple groups of barrels are assembled to form a cascade reactor, the number of the barrels of the whole equipment can be increased and decreased according to needs, the interior of the equipment is isolated by the partition plates in a large area, overflow flow can be achieved through the partition plates, one stirring shaft drives multiple groups of stirring paddles to stir the interior of a reaction cavity, and only one group of stirring devices is needed. According to the equipment, reaction cavities of a plurality of barrels are integrated in the same equipment, the structure is simple, continuous and automatic production can be conveniently realized, the mixing production efficiency is high, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of cascade reactors, specifically a cascade reactor with stirring. Background Technology

[0002] A reactor is a device used to realize a reaction process. It is widely used in chemical, oil refining, and metallurgical fields. Reactors are used to realize single-phase liquid reaction processes and multiphase reaction processes such as liquid-liquid, gas-liquid, liquid-solid, and gas-liquid-solid.

[0003] Traditional chemical manufacturing and research are mostly carried out using batch reactors and continuous reactors. Batch reactors have advantages such as simple operation, good equipment versatility, low maintenance and failure rate, and the ability to handle longer reaction times. Continuous reactors are mainly represented by tubular, plate plug flow reactors and continuous stirred reactors. Plate plug flow reactors provide good heat or mass transfer, but it is difficult to handle materials containing solids. Continuous stirred reactors are stirred tanks with continuous feeding and emptying, which are easy to scale up, can handle materials containing solids, and can also provide a longer residence time.

[0004] However, for batch reactors, small batch reactors have low production efficiency, while large batch reactors have long mixing times and variable product quality. Continuous stirred reactors have a wide retention time distribution, and the retention time can be well controlled by connecting several continuous stirrers in series. Common continuous stirred reactors have material inlet and outlet, can be stirred, and can be connected in multiple stages through pumps and other transmission equipment. This method is difficult to implement in actual production and laboratory. Too many devices lead to high costs and large on-site volume. Therefore, a cascade reactor with stirring is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a cascade reactor with stirring to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A cascade reactor with stirring includes a cylindrical body, wherein multiple sets of cylindrical bodies are provided. Flanges are fixed to both ends of the multiple sets of cylindrical bodies, and adjacent cylindrical bodies are sealed and installed via flanges. An upper cover plate is fixedly fixed to the upper end of the uppermost cylindrical body via a flange, and a lower cover plate is fixedly fixed to the bottom of the lowermost cylindrical body via a flange. A partition plate 1 is fixedly fixed to the middle of each of the multiple sets of cylindrical bodies, and a partition plate 2 is sealed and snapped between adjacent cylindrical bodies, allowing communication between adjacent cylindrical bodies. A stirring shaft is rotatably connected to the upper cover plate, and the stirring shaft passes through the partition plate 1 and the partition plate 2. Multiple sets of stirring paddles are fixedly fixed to the side wall of the stirring shaft. A discharge port is fixedly fixed to the upper cover plate, and a feed port for product outflow is fixedly fixed to the lower cover plate.

[0008] Preferably, the multiple sets of stirring paddles are located on one side of partition one and partition two, the number of stirring paddles is twice the number of cylinders, and the stirring paddles are located in the middle of the cylinder.

[0009] Preferably, both the first and second partitions are provided with a flow guide for connecting adjacent cylinders, and the flow guide is located on one side of the agitator.

[0010] Preferably, both the first and second partitions have a feeding port fixedly connected to their side walls. One end of the feeding port on the first partition is connected to the upper end of the first partition, and the other end is located outside the cylinder.

[0011] Preferably, the inner wall of the end of the cylinder is provided with a slot, and the second partition is sealed and engaged between two adjacent sets of slots. One end of the supplementary material port on the second partition is connected to the upper end of the second partition, and the other end is located outside the cylinder.

[0012] Preferably, each of the multiple sets of cylindrical sidewalls is fitted with a jacket, the uppermost jacket sidewall is connected and fixedly connected to an outlet, the lowermost jacket sidewall is connected and fixedly connected to an inlet, and adjacent jackets are connected to each other via a connecting pipe.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes a cascade reactor formed by assembling multiple cylindrical bodies. The number of bodies can be increased or decreased as needed. The interior of each cylinder serves as a reaction chamber, through which materials are added and products are discharged. Large-area partitions separate the interior, allowing materials to overflow between chambers without pipe connections, resulting in high mixing efficiency. Simultaneously, a single stirring shaft drives multiple stirring paddles to agitate the interior of the reaction chambers, requiring only one stirring device. The equipment is compact, easy to maintain, and low-cost. This device integrates the reaction chambers of several cylinders into a single unit, featuring a simple structure, ease of operation, and the ability to achieve continuous and automated production with high mixing efficiency and low cost. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall side structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the cylindrical structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the partition structure of this utility model;

[0021] The attached figures are labeled as follows:

[0022] 1. Cylinder; 2. Lower cover plate; 3. Upper cover plate; 4. Jacket; 5. Flange; 6. Agitator shaft; 7. Agitator paddle; 8. Discharge port; 9. Feed port; 10. Partition plate one; 11. Guide port; 12. Supplementary feed port; 13. Outlet; 14. Inlet; 15. Connecting pipe; 16. Slot; 17. Partition plate two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] A stirred cascade reactor, such as Figures 1-5 As shown, the reactor includes a cylindrical body 1. The height-to-diameter ratio of the reaction chamber inside the cylindrical body 1 is 0.4-3.0, preferably 1.3-2.0. Multiple sets of cylindrical bodies 1 are provided, each set having flanges 5 fixed to both ends. Adjacent cylindrical bodies 1 are sealed together via flanges 5. The uppermost cylindrical body 1 has an upper cover plate 3 fixedly connected to its upper end via flange 5, and the lowermost cylindrical body 1 has a lower cover plate 2 fixedly connected to its bottom via flange 5. The upper cover plate 3, the lower cover plate 2, and the multiple sets of cylindrical bodies 1 constitute the external body of the cascaded reactor. Partition 10 is fixedly connected to the middle of each body 1. Partition 2 17 is installed between adjacent bodies 1 in a sealed snap-fit ​​manner. Partition 10 and Partition 2 17 have the same structure but different installation positions. Adjacent bodies 1 are connected through Partition 10 or Partition 2 17. A stirring shaft 6 is rotatably connected to the upper cover plate 3. The stirring shaft 6 passes through Partition 10 and Partition 2 17. Multiple sets of stirring paddles 7 are fixedly connected to the side wall of the stirring shaft 6. A discharge port 8 is fixedly connected to the upper cover plate 3. A feed port 9 for product outflow is fixedly connected to the lower cover plate 2.

[0025] The cascade reactor body is formed by assembling multiple sets of cylinders 1. The multiple sets of cylinders 1 are easy to disassemble and assemble. The number of cylinders 1 can be increased or decreased as needed. The inside of cylinder 1 is the reaction chamber. Materials are added and products are discharged into the reaction chamber through the discharge port 8 and the inlet port 9. The inside is separated by baffles. The materials between the reaction chambers overflow through the baffles. There are no pipe connections, resulting in high mixing production efficiency. At the same time, a stirring shaft 6 drives multiple sets of stirring paddles 7 to stir the inside of the reaction chamber. Only one stirring device is needed. The equipment is small in size, easy to maintain, and low in cost. This equipment integrates the reaction chambers of several cylinders 1 into one device. It has a simple structure, is easy to operate, and can easily realize continuous and automated production. It has high mixing production efficiency and low cost.

[0026] like Figure 3 As shown, multiple sets of stirring paddles 7 are located on one side of partition 10 and partition 2 17, respectively. The number of stirring paddles 7 is twice the number of cylinder 1, and the stirring paddles 7 are located in the middle of cylinder 1.

[0027] The interior of the cylinder 1 is divided into two regions by a partition 10 or a partition 17. Multiple cylinders 1 are divided into multiple regions, and each set of stirring paddles 7 is located inside multiple regions, so that each region is stirred and the stirring efficiency is high. The material enters through the feed inlet 9, is stirred, and passes through the partition and is discharged from the discharge outlet 8.

[0028] like Figure 3 and Figure 5 As shown, both the first partition 10 and the second partition 17 are provided with a guide port 11 for connecting adjacent cylinders 1, and the guide port 11 is located on one side of the stirring paddle 7.

[0029] The guide port 11 facilitates the flow of materials. The reaction chambers between multiple sets of cylinders 1 are connected through the guide port 11, so that the reacted materials can pass through the guide port 11, through the partition 10 or the partition 17, and reach the discharge port 8.

[0030] like Figure 3 and Figure 5 As shown, both the first partition 10 and the second partition 17 have a feeding port 12 fixedly connected to their side walls. One end of the feeding port 12 on the first partition 10 is connected to the upper end of the first partition 10, and the other end is located outside the cylinder 1.

[0031] The feed inlet 12 on the partition 10 is fixedly connected to the cylinder 1. The feed inlet 12 on the partition 2 17 can be disassembled and installed along with the partition 2 17. The feed inlets 12 are all connected to the outside and can be used to add materials into the interior of each reaction chamber.

[0032] like Figure 3 and Figure 4As shown, a slot 16 is provided on the inner wall of the end of the cylinder 1, and the partition plate 17 is sealed and engaged between two adjacent sets of slots 16. One end of the supplementary material port 12 located on the partition plate 17 is connected to the upper end of the partition plate 17, and the other end is located outside the cylinder 1.

[0033] The second partition 17 is sealed and installed through the slot 16 between the two sets of cylinders 1. When the cylinders 1 are disassembled and assembled, the second partition 17 can be disassembled and assembled. The number of the second partition 17 changes with the number of cylinders 1.

[0034] like Figures 1-3 As shown, multiple sets of cylinder 1 are fitted with jackets 4 on their side walls. The side wall of the uppermost jacket 4 is connected to and fixedly connected to an outlet 13, and the side wall of the lowermost jacket 4 is connected to and fixedly connected to an inlet 14. Adjacent jackets 4 are connected to each other via connecting pipes 15.

[0035] The jacket 4 heats the reaction chamber inside the cylinder 1. The jacket 4 is equipped with an inlet 14 and an outlet 13, which can be connected to the adjacent jacket 4 as needed to achieve temperature control.

[0036] The working principle of the cascade reactor with stirring provided by this utility model is as follows:

[0037] The cascade reactor body is formed by assembling multiple sets of cylinders 1. The multiple sets of cylinders 1 are easy to disassemble and assemble. The number of cylinders 1 can be increased or decreased as needed. The inside of cylinder 1 is the reaction chamber. Materials are added and products are discharged into the reaction chamber through the discharge port 8 and the inlet port 9. The inside is separated by baffles. The materials between the reaction chambers overflow through the baffles. There are no pipe connections, resulting in high mixing production efficiency. At the same time, a stirring shaft 6 drives multiple sets of stirring paddles 7 to stir the inside of the reaction chamber. Only one stirring device is needed. The equipment is small in size, easy to maintain, and low in cost. This equipment integrates the reaction chambers of several cylinders 1 into one device. It has a simple structure, is easy to operate, and can easily realize continuous and automated production. It has high mixing production efficiency and low cost.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cascade reactor with stirring comprising a cylinder (1), characterized in that, The barrel (1) is provided with a plurality of groups, and the two ends of the plurality of groups of barrel (1) are fixedly connected with flanges (5), the adjacent barrels (1) are sealingly installed through the flanges (5), the upper end of the barrel (1) located at the uppermost end is sealingly and fixedly connected with the upper cover plate (3) through the flange (5), the bottom of the barrel (1) located at the lowermost end is sealingly and fixedly connected with the lower cover plate (2) through the flange (5), the middle part of the plurality of groups of barrel (1) is fixedly connected with the partition plate one (10), the adjacent barrels (1) are sealingly and clampedly connected with the partition plate two (17), the adjacent barrels (1) are communicated, the upper cover plate (3) is rotatably connected with the stirring shaft (6), the stirring shaft (6) penetrates the partition plate one (10) and the partition plate two (17), the side wall of the stirring shaft (6) is fixedly connected with a plurality of stirring paddles (7), the upper cover plate (3) is fixedly connected with the discharge port (8), and the lower cover plate (2) is fixedly connected with the feed port (9) for product outflow.

2. A cascaded reactor with agitation according to claim 1, characterized in that, A plurality of groups of the stirring paddles (7) are located on one side of the partition plate one (10) and the partition plate two (17), the number of the stirring paddles (7) is twice the number of the barrels (1), and the stirring paddles (7) are located in the middle part of the barrel (1).

3. A cascaded reactor with agitation according to claim 1, characterized in that, The partition plate one (10) and the partition plate two (17) are both provided with flow guide ports (11) penetratingly formed and used for communicating adjacent barrels (1), and the flow guide ports (11) are located on one side of the stirring paddles (7).

4. The cascaded reactor with agitation of claim 1, wherein, The side wall of the partition plate one (10) and the partition plate two (17) is fixedly connected with the supplementary feeding port (12), one end of the supplementary feeding port (12) located on the partition plate one (10) is communicated with the upper end of the partition plate one (10), and the other end is located outside the barrel (1).

5. A cascaded reactor with agitation according to claim 4, characterized in that, The end inner wall of the barrel (1) is provided with a clamping groove (16), the partition plate two (17) is sealingly clamped between the adjacent two groups of clamping grooves (16), one end of the supplementary feeding port (12) located on the partition plate two (17) is communicated with the upper end of the partition plate two (17), and the other end is located outside the barrel (1).

6. The cascading reactor with agitation of claim 1, wherein, The side wall of the plurality of groups of barrel (1) is sleeved with a jacket (4), the side wall of the jacket (4) located at the uppermost end is sealingly and fixedly connected with the outlet (13), the side wall of the jacket (4) located at the lowermost end is sealingly and fixedly connected with the inlet (14), and the adjacent jackets (4) are communicated through the connecting pipes (15).

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