A reaction kettle for preparing chemical products

Abstract

The utility model belongs to chemical product preparation equipment technical field, concretely is a kind of reaction kettle for chemical product preparation, including outer kettle body and inner kettle body, the upper end of outer kettle body is fixedly connected with kettle cover, inner kettle body is rotationally arranged in outer kettle body, and the side of inner kettle body is fixedly connected with guide pipe close to bottom, heating plate is fixedly connected on the front and rear inner wall of inner kettle body, the upper end of heating plate is fixedly connected with outer sleeve tube, the shell of outer kettle body is sleeved with spiral pipe, the import and export of spiral pipe are fixedly connected with connector, guide pipe is arranged in the cavity between outer kettle body and inner kettle body, and outer kettle body is fixedly connected with discharge pipe on one side close to lower end face, and electromagnetic valve is fixedly connected on guide pipe and discharge pipe all.The utility model is through setting double-layer kettle body structure, can more accurately control temperature to reactant, avoid local temperature excessively high, to improve product quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of chemical product preparation equipment, specifically a reaction vessel for chemical product preparation. Background Technology

[0002] Reactors are widely used in petroleum, chemical, rubber, pesticide, dye, pharmaceutical, and food industries as pressure vessels to perform sulfidation, nitration, hydrogenation, hydrocarbonation, polymerization, condensation, and other processes.

[0003] In the chemical industry, the temperature is difficult to control during the polymerization process in reactors used to prepare chemical products such as 2-acrylamido-2-methylpropanesulfonic acid. When the temperature is too high, the chemical structure of the reactants will change, which can easily affect the quality of the product. Summary of the Invention

[0004] The purpose of this invention is to provide a reaction vessel for preparing chemical products that can more accurately control the temperature and avoid local overheating that could affect the quality of the product.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a reaction vessel for preparing chemical products is provided, comprising an outer vessel body and an inner vessel body. A vessel cover is fixedly connected to the upper end of the outer vessel body. The inner vessel body is rotatably disposed inside the outer vessel body. A feed guide pipe is fixedly connected to one side of the inner vessel body near the bottom. Heating plates are fixedly connected to both the front and rear inner walls of the inner vessel body. An outer sleeve is fixedly connected to the upper end of the heating plate. A spiral tube is sleeved inside the shell of the outer vessel body. Connectors are fixedly connected to the inlet and outlet of the spiral tube.

[0006] Optionally, the feed pipe is disposed in the cavity between the outer vessel body and the inner vessel body, and a discharge pipe is fixedly connected to the side of the outer vessel body near the lower end face, and both the feed pipe and the discharge pipe are fixedly connected to a solenoid valve.

[0007] Optionally, a liquid guide tube is provided inside the outer sleeve, and the liquid guide tube passes through the heating plate.

[0008] Optionally, the connectors are all installed through the outer wall of the outer vessel body, and the spiral tubes are arranged in a spiral shape.

[0009] Optionally, a feeding pipe and a pressure relief pipe are fixedly connected to the lid of the vessel, and the lower end of the feeding pipe is located directly above the opening of the inner vessel body.

[0010] Optionally, a motor is fixedly connected to the middle of the upper end face of the vessel lid, and a stirring shaft is fixedly connected to the output end of the motor. The lower end of the stirring shaft extends into the inner vessel body and is fixedly connected to multiple blades. A support shaft is rotatably connected between the lower end face of the inner vessel body and the bottom plate of the outer vessel body. Multiple blades are fixedly connected to the outer wall of the support shaft. A mounting bracket is fixedly connected to the inner wall of one side of the outer vessel body. A mounting shaft is rotatably connected to the mounting bracket. A gear is fixedly connected to the outer wall of the mounting shaft. A gear ring is fixedly connected to the outer wall of the outer vessel body. The gear and the gear ring are meshed. A synchronization mechanism is sleeved on the stirring shaft and the mounting shaft.

[0011] Optionally, the synchronization mechanism includes a timing belt and two timing pulleys. A timing pulley is fixedly connected to the outer wall of both the stirring shaft and the mounting shaft. The timing belt is sleeved on the outer wall of the two timing pulleys and is engaged with the two timing pulleys.

[0012] Optionally, multiple blades are symmetrically distributed on the outer wall of the stirring shaft, and multiple blades are evenly distributed on the outer wall of the support shaft, and each blade is made of stainless steel plate inclined at 45°.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention comprises an outer vessel body, an inner vessel body, a feed pipe, a heating plate, an outer sleeve, a spiral tube, and a connector. Utilizing the double-layer structure of the outer and inner vessel bodies, along with the heating plate and spiral tube, precise temperature control of the reaction system can be achieved. The heating plate directly acts on the reactants in the inner vessel body, while the spiral tube heats the entire reaction environment. The two work together to ensure more uniform heating of the reactants, preventing localized overheating that could alter the chemical structure of the product molecules, thus ensuring the smooth progress of the reaction and improving product quality.

[0014] This utility model is equipped with a support shaft, blade one, stirring shaft, motor, blade two, mounting frame, mounting shaft, gear, synchronous belt, and toothed ring. By utilizing the synchronous transmission of the synchronous belt and the meshing of the gear and toothed ring, blade two stirs the reactants in the inner vessel while driving the support shaft to rotate through the inner vessel, thereby driving blade one to rotate and stir. This achieves multiple stirring of the reactants, improves the mixing effect, and further enhances the uniformity and speed of the reaction. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. 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 main structure of this utility model; Figure 2 This is a cross-sectional view of the outer vessel body of this utility model; Figure 3 This is a cross-sectional view of the inner vessel body of this utility model; Figure 4 This is a frontal sectional view of the present invention. Figure 5 This is a schematic diagram of the distribution structure of the liquid guiding tubes inside the heating plate of this utility model.

[0017] In the diagram: 1. Outer vessel body; 2. Support shaft; 3. Blade 1; 4. Inner vessel body; 5. Vessel cover; 6. Stirring shaft; 7. Motor; 8. Blade 2; 9. Feed guide pipe; 10. Discharge pipe; 11. Heating plate; 12. Outer sleeve; 13. Feeding pipe; 14. Mounting bracket; 15. Mounting shaft; 16. Gear; 17. Synchronization mechanism; 18. Spiral tube; 19. Connector; 20. Gear ring; 21. Pressure relief pipe; 22. Liquid guide pipe. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0020] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] Reference Figure 1-5 The present invention provides a chemical product preparation reactor according to an embodiment of the present invention. A chemical product preparation reactor includes an outer vessel body 1 and an inner vessel body 4. A vessel cover 5 is fixedly connected to the upper end of the outer vessel body 1. The inner vessel body 4 is rotatably disposed inside the outer vessel body 1. A feed pipe 9 is fixedly connected to one side of the inner vessel body 4 near the bottom. Heating plates 11 are fixedly connected to both the front and rear inner walls of the inner vessel body 4. An outer sleeve 12 is fixedly connected to the upper end of the heating plates 11. A spiral tube 18 is sleeved inside the shell of the outer vessel body 1. Connectors 19 are fixedly connected to the inlet and outlet of the spiral tube 18. The heating plates 11 of the inner vessel body 4 are used for high-energy-consuming heating in the main reaction stage, while the spiral tube 18 only needs to maintain the target temperature of the outer vessel body 1, thus realizing a segmented reaction process and jacketed temperature control characteristics.

[0023] The present invention provides a reaction vessel for preparing chemical products. Compared with the prior art, it significantly improves reaction efficiency and product quality through a double-layer vessel body for coordinated temperature control and a multi-stirring design.

[0024] Please refer to another embodiment of this utility model as well. Figure 1 and Figure 2 All connectors 19 are installed through the outer wall of the outer vessel body 1. The spiral tubes 18 are arranged in a spiral shape. High-temperature liquid is input through one connector 19, flows through the spiral tube 18 to heat the reactants in the outer vessel body 1, and then flows out from the other connector 19 for circulating heating. When it is necessary to cool the outer vessel body 1, the spiral tubes 18 can be switched to introduce coolant for rapid cooling. The vessel cover 5 is fixedly connected to a feeding pipe 13 and a pressure relief pipe 21. The lower end of the feeding pipe 13 is located directly above the opening of the inner vessel body 4, which facilitates the addition of reactants into the inner vessel body 4.

[0025] Please refer to another embodiment of this utility model as well. Figure 3 and Figure 5The feed pipe 9 is located in the cavity between the outer vessel body 1 and the inner vessel body 4. The discharge pipe 10 is fixedly connected to the side of the outer vessel body 1 near the lower end face. Solenoid valves are fixedly connected to both the feed pipe 9 and the discharge pipe 10. The solenoid valves are used to control the opening and closing of the feed pipe 9 and the discharge pipe 10. The solenoid valves are made of corrosion-resistant material. The outer sleeve 12 is fitted with a liquid guide pipe 22. The liquid guide pipe 22 passes through the heating plate 11. The body of the liquid guide pipe 22 inside the heating plate 11 is arranged in an S-shape, which can effectively extend the flow path of the high-temperature liquid and thus improve the heat exchange effect. Both ends of the liquid guide pipe 22 pass through the outer sleeve 12. The first end is used to connect the high-temperature liquid. Then the high-temperature liquid flows through the S-section of the liquid guide pipe 22 to heat the heating plate 11, so that the heating plate 11 can directly heat the reactants in the inner vessel body 4, and then flow out from the tail end.

[0026] In another embodiment of this utility model, please refer to Figures 2 to 4 A motor 7 is fixedly connected to the middle of the upper end face of the vessel lid 5. A stirring shaft 6 is fixedly connected to the output end of the motor 7. The lower end of the stirring shaft 6 extends into the inner vessel body 4 and is fixedly connected to multiple blades 8. A support shaft 2 is rotatably connected between the lower end face of the inner vessel body 4 and the bottom plate of the outer vessel body 1. Multiple blades 3 are fixedly connected to the outer wall of the support shaft 2. A mounting bracket 14 is fixedly connected to the inner wall of one side of the outer vessel body 1. A mounting shaft 15 is rotatably connected to the mounting bracket 14. A gear 16 is fixedly connected to the outer wall of the mounting shaft 15. A gear ring 20 is fixedly connected to the outer wall of the outer vessel body 1. The gear 16 and the gear ring 20 are meshed. The diameter of the gear ring 20 is much larger than the diameter of the gear 16, which can prevent the inner vessel body 4 from rotating too fast and colliding with the blades 8. A synchronization mechanism 17 is sleeved on the stirring shaft 6 and the mounting shaft 15. The motor 7 drives the stirring shaft 6 to rotate, thereby driving the blades 8 to rotate and stirring the reactants. At the same time, the stirring shaft 6 is synchronized by the synchronization mechanism. The mechanism 17 drives the mounting shaft 15 to rotate, which in turn drives the gear 16 to rotate, which in turn drives the gear ring 20 to rotate, which in turn drives the inner vessel 4 to rotate, which in turn drives the support shaft 2 to rotate, which in turn drives the blades 3 to stir the reactants falling from the feed pipe 9 again, improving the mixing effect. The synchronization mechanism 17 includes a timing belt and two timing pulleys. A timing pulley is fixedly connected to the outer wall of both the stirring shaft 6 and the mounting shaft 15. The timing belt is sleeved on the outer wall of the two timing pulleys and meshes with the two timing pulleys. The timing belt enables the two timing pulleys to rotate synchronously, so that the mounting shaft 15 can be rotated synchronously when the stirring shaft 6 rotates. Multiple blades 8 are symmetrically distributed on the outer wall of the stirring shaft 6, and multiple blades 3 are evenly distributed on the outer wall of the support shaft 2. The multiple blades 3 are all made of stainless steel plates inclined at 45°. The blades 3 inclined at 45° can make the interlayer fluid generate axial components better and eliminate flow dead zones.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reaction vessel for preparing chemical products, comprising an outer vessel body (1) and an inner vessel body (4), wherein a vessel lid (5) is fixedly connected to the upper end of the outer vessel body (1), characterized in that: The inner vessel (4) is rotatably disposed inside the outer vessel (1). A guide pipe (9) is fixedly connected to one side of the inner vessel (4) near the bottom. A heating plate (11) is fixedly connected to both the front and rear inner walls of the inner vessel (4). An outer sleeve (12) is fixedly connected to the upper end of the heating plate (11). A spiral tube (18) is sleeved inside the shell of the outer vessel (1). A connector (19) is fixedly connected to both the inlet and outlet of the spiral tube (18).

2. The reaction vessel for preparing chemical products as described in claim 1, characterized in that: The feed pipe (9) is located in the cavity between the outer vessel body (1) and the inner vessel body (4). The outer vessel body (1) is fixedly connected to the discharge pipe (10) on the side near the lower end face. Both the feed pipe (9) and the discharge pipe (10) are fixedly connected to electromagnetic valves.

3. The reaction vessel for preparing chemical products as described in claim 1, characterized in that: The outer sleeve (12) is fitted with a liquid guide tube (22), which passes through the heating plate (11).

4. The reaction vessel for preparing chemical products as described in claim 1, characterized in that: The connectors (19) are all installed through the outer wall of the outer vessel body (1), and the spiral tubes (18) are arranged in a spiral shape.

5. The reaction vessel for preparing chemical products as described in claim 1, characterized in that: The lid (5) is fixedly connected to a feeding pipe (13) and a pressure relief pipe (21), and the lower end of the feeding pipe (13) is located directly above the opening of the inner body (4).

6. The reaction vessel for preparing chemical products as described in claim 1, characterized in that: A motor (7) is fixedly connected to the middle of the upper end face of the lid (5). A stirring shaft (6) is fixedly connected to the output end of the motor (7). The lower end of the stirring shaft (6) extends into the inner body (4) and is fixedly connected to multiple blades (8). A support shaft (2) is rotatably connected between the lower end face of the inner body (4) and the bottom plate of the outer body (1). Multiple blades (3) are fixedly connected to the outer wall of the support shaft (2). A mounting frame (14) is fixedly connected to the inner wall of one side of the outer body (1). A mounting shaft (15) is rotatably connected to the mounting frame (14). A gear (16) is fixedly connected to the outer wall of the mounting shaft (15). A gear ring (20) is fixedly connected to the outer wall of the outer body (1). The gear (16) meshes with the gear ring (20). A synchronization mechanism (17) is sleeved on the stirring shaft (6) and the mounting shaft (15).

7. The reaction vessel for preparing chemical products as described in claim 6, characterized in that: The synchronization mechanism (17) includes a timing belt and two timing wheels. A timing wheel is fixedly connected to the outer wall of both the stirring shaft (6) and the mounting shaft (15). The timing belt is sleeved on the outer wall of the two timing wheels and is engaged with the two timing wheels.

8. The reaction vessel for preparing chemical products as described in claim 6, characterized in that: Multiple blades two (8) are symmetrically distributed on the outer wall of the stirring shaft (6), and multiple blades one (3) are evenly distributed on the outer wall of the support shaft (2), and multiple blades one (3) are made of stainless steel plates inclined at 45°.

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