Reaction kettle with metering and weighing functions

Abstract

The invention relates to the technical field of reaction kettles, and provides a reaction kettle with metering and weighing functions, which comprises a tank body, a central pipe column is rotatably arranged in the tank body, and mixed flow pipe fittings are arranged on two sides of the central pipe column. The top of the tank body is provided with a driving mechanism for driving the central pipe column to drive the flow mixing pipe fitting to stir a liquid reactant in the tank body, the central pipe column is internally provided with a weighing assembly capable of weighing the liquid reactant added into the tank body, and the top surface of the tank body is fixedly provided with a flow conversion cover rotationally arranged outside the central pipe column; the weighing sensor serves as a weighing module and is designed in the double-layer pipe fitting, weighing can be completed in the kettle, environment difference caused by a traditional kettle outside weighing mode is avoided, then the material weight can be accurately measured, errors of a traditional weighing method are avoided, the weight change of fed and discharged materials can be displayed in real time, and the measurement accuracy is improved. And the material feeding and discharging process can be accurately controlled.

Description

Technical Field

[0001] The invention relates to the technical field of reactors, and in particular to a reactor with a metering and weighing function. Background Art

[0002] A reactor is a container used for physical or chemical reactions and is widely used in the fields of petroleum, chemical industry, rubber, pesticide, dye, medicine and food. It realizes the heating, evaporation, cooling and low-speed mixing functions required by the process through the structural design and parameter configuration of the container to complete the process of sulfidation, nitration, hydrogenation, hydrocarbonization, polymerization, condensation, etc. The weighing of the reactants in the reactor is of great significance in ensuring product quality, improving production efficiency, ensuring production safety, and facilitating data recording and analysis.

[0003] In the prior art, the reactants in the reactor are usually weighed outside the reactor. For example, the announcement number CN214636254U discloses a reactor with a weighing function, which includes a reactor body, a treatment cylinder connected to the reactor body is installed on the reactor body, a grinding part is installed inside the treatment cylinder, an L-shaped mounting plate is installed on the right side of the treatment cylinder, a weighing box is installed on the L-shaped mounting plate, a cavity is opened inside the L-shaped mounting plate, and an adjusting part is installed inside the cavity; by arranging the weighing box, the digital display weighing sensor and the adjusting part, the weighing box and the digital display weighing sensor can be used to weigh the reactants added to the reactor body. The materials are accurately weighed, and the rotation of the screw and the limit of the guide rod enable the movable block to drive the weighing box to move left and right through the connecting block, thereby realizing the left and right transportation of the weighed materials, so that the materials can enter the interior of the reactor body without manual handling; however, the reactor can only weigh the initial reactants, and cannot weigh the obtained finished reactants. Therefore, the obtained finished reactants need to be transferred to other weighing devices for weighing before the next step of batching can be carried out. In addition, due to the difference in the environment inside and outside the reactor (such as temperature, air pressure, etc.), the weighing method outside the reactor will affect the accuracy of the weighing.

[0004] In addition to the weighing method adopted by the above-mentioned reactor, the prior art also includes weighing the reactor body and the reactants together. Announcement No. CN216024806U provides a reactor with a weighing function, which relates to the technical field of reactors, including a reactor body and a base arranged at the bottom of the reactor body; a weighing cavity is arranged in the middle of the base, and an electric hydraulic jack is arranged inside the weighing cavity. The electric hydraulic jack includes an electric pump and a hydraulic telescopic cylinder arranged above the electric pump; a weighing platform is arranged above the hydraulic telescopic cylinder, and a weighing sensor is embedded on the surface of the weighing platform. In the utility model, when the reactor body does not need to be weighed, the reactor body will not act on the weighing platform. When the reactor body needs to be weighed, the reactor body will act on the weighing sensor on the weighing platform for weighing. Therefore, the weighing sensor has a longer service life and higher sensitivity. However, due to the size of the reactor, it needs to be lifted with the aid of other equipment, which makes it very inconvenient to weigh the reactor together with the reactor body and the reactants, resulting in poor practicality. Moreover, weighing together with the reactor will inevitably affect the sensitivity of the weighing sensor, thereby increasing the error. Summary of the invention

[0005] The present invention provides a reaction kettle with a metering and weighing function, which solves the problem in the prior art that initial reactants and finished reaction products cannot be weighed simultaneously in the kettle.

[0006] The technical solution of the present invention is as follows: A reactor with a metering and weighing function comprises a tank body, a central tube column is rotatably arranged in the tank body, mixing flow pipes are arranged on both sides of the central tube column, a driving mechanism is arranged on the top of the tank body for driving the central tube column to drive the mixing flow pipes to stir the liquid reactants in the tank body, a weighing assembly is arranged in the central tube column for weighing the liquid reactants added to the tank body, a flow exchange cover rotatably arranged outside the central tube column is fixed on the top surface of the tank body, and a drainage assembly is arranged on one side of the flow exchange cover for extracting the finished reactants in the tank body through the mixing flow pipes and discharging them after being weighed by the weighing assembly.

[0007] Preferably, a first chamber and a second chamber located below the first chamber are provided in the deflector cover, and a feed pipe communicating with the first chamber is fixed to the outer side of the deflector cover.

[0008] Preferably, the central column comprises an outer tube, an inner tube is arranged on the inner side of the top of the outer tube, a flow guide tube is fixed between the inner tube and the outer tube, and the flow guide tube connects the first chamber with the inner cavity of the inner tube.

[0009] Preferably, the mixing flow pipe comprises a pipe body, a plurality of stirring blades are fixed on both sides of the bottom of the pipe body, the pipe body penetrates and is fixed to the outer pipe, and the pipe body connects the inner cavity of the tank body with the second chamber.

[0010] Preferably, the driving mechanism comprises a motor group, the motor group is fixed to the top surface of the tank body, a gear is fixed to the output end of the motor group, and a gear disc meshing with the gear is fixed to the outer side of the top of the outer tube.

[0011] Preferably, the drainage assembly includes a metering pump, which is fixed to the top surface of the tank body, the input end of the metering pump is connected to the inner cavity of the second chamber through a pumping tube, a rotating joint is provided at the top end of the outer tube, and the output end of the pumping tube is rotatably connected to the rotating joint through a pumping tube.

[0012] Preferably, the weighing assembly comprises a weighing sensor and a weighing cylinder seated on the weighing sensor.

[0013] Preferably, the weighing cylinder includes an outer cylinder and an inner cylinder fixed in the outer cylinder, a first discharge pipe is fixed to one side of the bottom of the inner cylinder, the first discharge pipe passes through the outer cylinder and the outer tube, a first electromagnetic valve is arranged in the first discharge pipe, a second discharge pipe is fixed to the bottom of the outer cylinder, and a second electromagnetic valve is arranged in the second discharge pipe.

[0014] Preferably, a first flow guide cover is fixed inside the outer tube and gradually closes from top to bottom to the clamping cavity of the outer tube and the inner tube, a bracket is fixed inside the outer tube and is located below the second flow guide cover, the weighing sensor is fixed on the bracket, the bracket is provided with guide holes distributed around the weighing sensor, and a second flow guide cover is fixed on the bottom surface of the outer tube and gradually closes from top to bottom to the guide holes around the weighing sensor.

[0015] Preferably, a heater is provided in the interlayer of the tank body, and a discharge port is provided on one side of the bottom of the tank body.

[0016] The beneficial effects of the present invention are: 1. The present invention uses a weighing sensor as a weighing module designed in a double-layer pipe, which can complete weighing in the kettle, avoiding the environmental differences caused by the traditional weighing mode outside the kettle, and can accurately measure the weight of the material, avoiding the errors of the traditional weighing method, and can display the weight changes of the incoming and outgoing materials in real time, which is convenient for accurately controlling the material delivery and discharge process; 2. The present invention realizes the weighing measurement of material delivery and discharge by designing a weighing sensor with a double-layer weighing cylinder and using two independent feeding and returning systems, while avoiding the confusion of materials between the two measurement methods, thereby ensuring the quality of reactants and finished reaction products and avoiding the difference in measurement results caused by the mutual influence between the two. 3. In the present invention, during the reaction process, the driving mechanism drives the central column to rotate, and the stirring blades on the mixed flow pipe stir the reactants, so that the heater in the tank interlayer can fully heat the reactants to accelerate the reaction rate. After the reaction is completed, if it is necessary to weigh the reaction product, the metering pump can be used to extract the reaction product obtained by the mixed flow pipe and weigh it again through the weighing sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of a reactor with a measuring and weighing function proposed by the present invention; Figure 2 This is a schematic diagram of a partial cross-sectional structure of a reactor with a measuring and weighing function proposed by the present invention; Figure 3 This is a schematic diagram of a half-section front view of a reactor with a weighing function proposed by the present invention; Figure 4 This is a schematic diagram of the half-section structure of the weighing cylinder proposed by the present invention; Figure 5 This is a schematic diagram of a partial half-section structure of the center column proposed by the present invention; Figure 6 for Figure 3 The enlarged structural diagram at A in the middle; Figure 7 for Figure 3 The enlarged structural diagram at B in the middle; In the figure: 1, tank body; 11, heater; 12, discharge port; 2, central column; 21, outer tube; 211, toothed disc; 212, rotary joint; 213, first guide cover; 214, bracket; 215, guide hole; 22, inner tube; 23, guide tube; 3, mixed flow pipe; 31, tube body; 32, stirring blade; 4, driving mechanism; 41, motor group; 42, gear; 5, weighing assembly; 51 , weighing cylinder; 511, outer cylinder; 512, inner cylinder; 513, first discharge pipe; 514, second discharge pipe; 515, first electromagnetic valve; 516, second electromagnetic valve; 517, second flow guide cover; 52, weighing sensor; 6, drainage assembly; 61, metering pump; 62, pump inlet pipe; 63, pump outlet pipe; 7, exchange cover; 71, first chamber; 72, second chamber; 73, feed pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 , Figure 2 and Figure 3 The present invention provides a technical solution: a reactor with a metering and weighing function, comprising a tank body 1, a central pipe column 2 is rotatably arranged in the tank body 1, and mixing flow pipes 3 are arranged on both sides of the central pipe column 2. A driving mechanism 4 is arranged on the top of the tank body 1 to drive the central pipe column 2 to drive the mixing flow pipe 3 to stir the liquid reactant in the tank body 1, a weighing component 5 is arranged in the central pipe column 2 and can weigh the liquid reactant added to the tank body 1, a flow exchange cover 7 rotatably arranged outside the central pipe column 2 is fixed on the top surface of the tank body 1, and a drainage component 6 is arranged on one side of the flow exchange cover 7 to extract the finished reactant in the tank body 1 through the mixing flow pipe 3 and can be discharged after being weighed by the weighing component 5.

[0021] See also Figure 3 and Figure 6 A first chamber 71 and a second chamber 72 located below the first chamber 71 are provided in the deflector cover 7. A feed pipe 73 communicating with the first chamber 71 is fixed on the outside of the deflector cover 7. Liquid reactants can enter the first chamber 71 through the feed pipe 73.

[0022] See also Figure 3 and Figure 5 The central column 2 includes an outer tube 21, an inner tube 22 is arranged on the inner side of the top of the outer tube 21, a flow guide tube 23 is fixed between the inner tube 22 and the outer tube 21, and the flow guide tube 23 connects the first chamber 71 with the inner cavity of the inner tube 22. The outer tube 21 is open at the top and bottom, while the upper end of the inner tube 22 is closed and the lower end is open.

[0023] See also Figure 2 and Figure 3 The mixing flow pipe 3 includes a pipe body 31, and a plurality of stirring blades 32 are fixed on both sides of the bottom of the pipe body 31. The pipe body 31 penetrates and is fixed to the outer tube 21. The pipe body 31 connects the inner cavity of the tank body 1 with the second chamber 72. The pipe body 31 is a hollow tubular structure with openings at both ends. The lower end of the pipe body 31 is close to the bottom cavity of the tank body 1, and the upper end of the pipe body 31 passes through the clamping cavity between the inner tube 22 and the outer tube 21 and leads to the second chamber 72.

[0024] See also Figure 2 and Figure 5The driving mechanism 4 includes a motor group 41, which is fixed to the top surface of the tank body 1. A gear 42 is fixed to the output end of the motor group 41. A toothed disc 211 meshing with the gear 42 is fixed to the outer side of the top of the outer tube 21. During the reaction process, the motor group 41 drives the gear 42 to rotate. The meshing of the gear 42 and the toothed disc 211 drives the central column 2 to rotate in the tank body 1, and then the stirring blades 32 on the mixing pipe 3 stir the reactants, so that the heater 11 in the interlayer of the tank body 1 can fully heat the reactants to accelerate the reaction rate.

[0025] See also Figure 2 The drainage assembly 6 includes a metering pump 61, which is fixed to the top surface of the tank body 1. The input end of the metering pump 61 is connected to the inner cavity of the second chamber 72 through a pump inlet pipe 62. A rotary joint 212 is provided at the top of the outer tube 21, and the output end of the pump inlet pipe 62 is rotatably connected to the rotary joint 212 through a pump outlet pipe 63.

[0026] See also Figure 4 and Figure 7 The weighing assembly 5 includes a weighing sensor 52 and a weighing cylinder 51 located on the weighing sensor 52. The weighing cylinder 51 includes an outer cylinder 511 and an inner cylinder 512 fixed in the outer cylinder 511. The bottom of the inner tube 22 extends into the inner cylinder 512. A first discharge pipe 513 is fixed to one side of the bottom of the inner cylinder 512. The first discharge pipe 513 penetrates the outer cylinder 511 and the outer tube 21. A first electromagnetic valve 515 is arranged in the first discharge pipe 513. A second discharge pipe 514 is fixed to the bottom of the outer cylinder 511. A second electromagnetic valve 516 is arranged in the second discharge pipe 514. The liquid is reacted The reactant can enter the first chamber 71 through the feed pipe 73, and then enter the inner tube 22 through the guide tube 23. The bottom of the inner tube 22 extends into the inner cylinder 512, and then the liquid reactant is passed into the inner cylinder 512. The reactant can be weighed by the weighing sensor 52, and then discharged into the tank body 1 by opening the first electromagnetic valve 515 in the first discharge pipe 513. After the weighing of the completed reaction product is completed, the second electromagnetic valve 516 in the second discharge pipe 514 can be opened to allow the completed reaction product in the clamping chamber to fall through the second guide cover 517 and be discharged downward from the tank body 1 through the guide hole 215.

[0027] Specifically, a first air guide cover 213 is fixed inside the outer tube 21 and gradually closes from top to bottom to the clamping cavity between the outer tube 511 and the inner tube 512. A bracket 214 is fixed inside the outer tube 21 and is located below the second air guide cover 517. The weighing sensor 52 is fixed on the bracket 214. The bracket 214 is provided with guide holes 215 distributed around the weighing sensor 52. A second air guide cover 517 is fixed to the bottom surface of the outer tube 511 and gradually closes from top to bottom to the guide holes 215 around the weighing sensor 52.

[0028] Furthermore, a heater 11 is provided in the interlayer of the tank body 1 for heating the reactants in the tank body 1 to increase the reaction rate, and a discharge port 12 is provided on one side of the bottom of the tank body 1 to discharge the finished reactants in the tank body 1 directly without weighing.

[0029] The working principle and use process of the present invention are as follows: the liquid reactant enters the first chamber 71 through the feed pipe 73, and then enters the inner tube 22 through the guide tube 23. The bottom of the inner tube 22 extends into the inner tube 512, and then the liquid reactant is passed into the inner tube 512. The reactant can be weighed by the weighing sensor 52, and then discharged into the tank body 1 by opening the first electromagnetic valve 515 in the first discharge pipe 513. During the reaction process, the motor group 41 drives the gear 42 to rotate, and the gear 42 is engaged with the toothed disc 211, which drives the central column 2 to rotate in the tank body 1, and then the stirring blades 32 on the mixing pipe 3 stir the reactant, so that the heater 11 in the interlayer of the tank body 1 can fully heat the reactant to accelerate the reaction rate; If the reaction product needs to be weighed after the reaction is completed, the metering pump 61 can be operated to extract the reaction product in the tank body 1 into the second chamber 72 through the tube body 31, and then pass into the outer tube 21 through the pump inlet pipe 62 and the pump outlet pipe 63, and then introduced into the sandwich cavity between the outer cylinder 511 and the inner cylinder 512 through the first flow guide cover 213, and then can be weighed by the weighing sensor 52. After the weighing is completed, the second electromagnetic material valve 516 in the second discharge pipe 514 is opened, so that the reaction product in the sandwich cavity falls through the second flow guide cover 517 and is discharged downward from the tank body 1 through the guide hole 215; After the reaction is completed, if the reaction product is obtained without weighing, the reaction product in the tank body 1 can be directly discharged through the discharge port 12.

[0030] 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 reactor with a weighing function, comprising a tank body (1), characterized in that: A central column (2) is rotatably arranged in the tank body (1), and mixing pipes (3) are arranged on both sides of the central column (2). A driving mechanism (4) is arranged on the top of the tank body (1) to drive the central column (2) to drive the mixing pipe (3) to stir the liquid reactant in the tank body (1). A weighing assembly (5) capable of weighing the liquid reactant added to the tank body (1) is arranged in the central column (2). A flow exchange cover (7) rotatably arranged outside the central column (2) is fixed on the top surface of the tank body (1), and a drainage assembly (6) is arranged on one side of the flow exchange cover (7) to extract the finished reactant in the tank body (1) through the mixing pipe (3) and discharge it after being weighed by the weighing assembly (5).

2. The reactor with weighing function according to claim 1, characterized in that: The exchange cover (7) is provided with a first chamber (71) and a second chamber (72) located below the first chamber (71), and a feed pipe (73) communicating with the first chamber (71) is fixed to the outside of the exchange cover (7).

3. The reactor with weighing function according to claim 2, characterized in that: The central pipe column (2) comprises an outer pipe (21), an inner pipe (22) is arranged on the inner side of the top of the outer pipe (21), a flow guide pipe (23) is fixed between the inner pipe (22) and the outer pipe (21), and the flow guide pipe (23) connects the first chamber (71) with the inner cavity of the inner pipe (22).

4. The reactor with weighing function according to claim 3, characterized in that: The mixing flow pipe (3) comprises a pipe body (31), a plurality of stirring blades (32) are fixed on both sides of the bottom of the pipe body (31), the pipe body (31) penetrates and is fixed to the outer pipe (21), and the pipe body (31) connects the inner cavity of the tank body (1) with the second chamber (72).

5. The reactor with weighing function according to claim 4, characterized in that: The driving mechanism (4) comprises a motor group (41), the motor group (41) being fixed to the top surface of the tank body (1), a gear (42) being fixed to the output end of the motor group (41), and a toothed disc (211) meshing with the gear (42) being fixed to the outside of the top of the outer tube (21).

6. The reactor with weighing function according to claim 5, characterized in that: The drainage assembly (6) comprises a metering pump (61), the metering pump (61) being fixed to the top surface of the tank body (1), the input end of the metering pump (61) being communicated with the inner cavity of the second chamber (72) via a pump inlet pipe (62), a rotary joint (212) being provided at the top end of the outer tube (21), and the output end of the pump inlet pipe (62) being rotatably connected to the rotary joint (212) via a pump outlet pipe (63).

7. The reactor with weighing function according to claim 6, characterized in that: The weighing assembly (5) comprises a weighing sensor (52) and a weighing cylinder (51) located on the weighing sensor (52).

8. The reactor with weighing function according to claim 7, characterized in that: The weighing cylinder (51) comprises an outer cylinder (511) and an inner cylinder (512) fixed inside the outer cylinder (511); a first discharge pipe (513) is fixed to one side of the bottom of the inner cylinder (512); the first discharge pipe (513) passes through the outer cylinder (511) and the outer tube (21); a first electromagnetic valve (515) is arranged inside the first discharge pipe (513); a second discharge pipe (514) is fixed to the bottom of the outer cylinder (511); a second electromagnetic valve (516) is arranged inside the second discharge pipe (514).

9. The reactor with weighing function according to claim 8, characterized in that: A first flow guide cover (213) is fixed inside the outer tube (21) and gradually closes from top to bottom to the clamping cavity of the outer tube (511) and the inner tube (512). A bracket (214) is fixed inside the outer tube (21) and is located below a second flow guide cover (517). The weighing sensor (52) is fixed on the bracket (214). The bracket (214) is provided with guide holes (215) distributed around the weighing sensor (52). The bottom surface of the outer tube (511) is fixed with a second flow guide cover (517) that gradually closes from top to bottom to the guide holes (215) around the weighing sensor (52).

10. The reactor with weighing function according to claim 1, characterized in that: A heater (11) is arranged in the interlayer of the tank body (1), and a discharge port (12) is arranged on one side of the bottom of the tank body (1).

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