Stirring device for mixing reaction in production of p-chlorobenzonitrile
By designing a stirring device with a sealing plug and rubber sealing gasket in the production of chlorobenzonitrile, the problem of poor sealing of the mixing reactor was solved, achieving more efficient reaction control and improved product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-03
AI Technical Summary
In the existing chlorobenzonitrile production process, the mixing reactor has poor sealing, leading to raw material leakage, environmental pollution, and health hazards.
A stirring device including a sealing plug plate and a rubber sealing gasket was designed. The device uses a lifting component to provide mechanical power to seal the injection hole and is equipped with temperature and pressure sensors to monitor reaction conditions in real time. It is combined with a variable frequency motor to drive the stirring blades for uniform mixing.
It improves the sealing effect of the injection hole, reduces the risk of leakage, ensures stable reaction conditions, and enhances production efficiency and product quality.
Smart Images
Figure CN224071978U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chlorobenzonitrile production, specifically a stirring device for the mixing reaction in the production of p-chlorobenzonitrile. Background Technology
[0002] In the production of chlorobenzonitrile, mixing is a crucial step. To ensure that the reaction proceeds efficiently and uniformly, a stirring device is required. The raw materials used in the production of chlorobenzonitrile typically have different physical and chemical properties, such as solubility and density. The stirring device enables these raw materials to be fully mixed in the reaction vessel, ensuring that the components are evenly distributed at the microscopic level, thereby increasing the contact probability between reactants and improving the reaction rate and conversion rate.
[0003] Currently, chlorobenzonitrile reactors typically use packing seals to seal the injection port. However, packing seals have poor sealing effects on the injection port. Since the raw materials and products in chlorobenzonitrile production are toxic and corrosive, leaks are prone to occur, which will pollute the production environment and harm the health of workers. Therefore, those skilled in the art have provided a stirring device for the mixing reaction in the production of chlorobenzonitrile to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this invention is to provide a stirring device for the mixing reaction in the production of p-chlorobenzonitrile, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A stirring device for mixing reactions in the production of p-chlorobenzonitrile includes a reaction vessel. A temperature regulating sleeve is fixedly connected to the outer surface of the reaction vessel. A cover plate is fixedly installed at the top of the reaction vessel. A lifting component is provided above the cover plate. A stirring component is provided above the cover plate. Two detection covers are embedded in the upper surface of the cover plate. A temperature sensor and a pressure sensor are respectively installed on the inner top wall of the two detection covers. Two detection holes are opened on the bottom surface of the cover plate. A filling hole is opened on the upper surface of the cover plate. A sealing plug plate is provided above the filling hole. A rubber sealing gasket is connected to the bottom surface of the sealing plug plate.
[0007] As a further embodiment of this utility model: the stirring component includes a drive cover fixedly installed on the upper surface of the cover plate, a variable frequency motor fixedly installed on the inner top wall of the drive cover, a stirring shaft installed at the output end of the variable frequency motor, a plurality of stirring blades connected to the outer surface of the stirring shaft, a bearing ring inlaid on the upper surface of the cover plate, and the inner ring of the bearing ring connected to the outer surface of the stirring shaft.
[0008] As a further embodiment of this utility model: the lifting component includes a support frame fixedly installed on the upper surface of the cover plate, a support plate fixedly installed on the upper surface of the support frame, an electric cylinder fixedly installed on the bottom surface of the support plate, a connecting block installed on the telescopic end of the electric cylinder, and the bottom surface of the connecting block connected to the upper surface of the sealing plug plate.
[0009] As a further improvement of this utility model: the inner wall of the support frame has two limiting holes, and the inner walls of the two limiting holes are slidably connected to limiting blocks. The sides of the two limiting blocks that are close to each other are connected to the outer surface of the connecting block.
[0010] As a further improvement of this utility model: the outer surface of the temperature regulating sleeve is connected to two connecting joints, and the outer surface of each of the two connecting joints is connected to a solenoid valve.
[0011] As a further embodiment of this utility model: the bottom surface of the reactor is connected to a discharge pipe, and the outer surface of the discharge pipe is connected to a discharge valve.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The stirring device for the mixing reaction in the production of p-chlorobenzonitrile uses a sealing plug plate and rubber sealing gasket. Simultaneously, the mechanical power provided by the lifting mechanism automatically drives the sealing plug plate to move up and down. This lifting mechanism, along with the sealing plug plate and rubber sealing gasket, mechanically seals the injection hole, improving the sealing effect. Compared to traditional packing seals, this reduces the risk of leakage. Furthermore, the use of a pressure sensor allows for real-time monitoring of the reaction pressure inside the reactor, enabling the detection of pressure leaks and facilitating flexible handling by personnel, thus improving the production efficiency of p-chlorobenzonitrile. Attached Figure Description
[0014] Figure 1 A frontal three-dimensional structural schematic diagram of a stirring device for mixing reactions in the production of p-chlorobenzonitrile;
[0015] Figure 2 A frontal cross-sectional view of a stirring device for mixing reactions in the production of p-chlorobenzonitrile;
[0016] Figure 3 This is a three-dimensional structural diagram of the cover plate in a stirring device for mixing reactions in the production of p-chlorobenzonitrile, viewed from below.
[0017] Figure 4 This is a side cross-sectional view of the lifting component in a stirring device for mixing reactions in the production of p-chlorobenzonitrile.
[0018] In the diagram: 1. Reactor; 2. Temperature control jacket; 3. Cover plate; 4. Lifting component; 401. Support frame; 402. Support plate; 403. Electric cylinder; 404. Connecting block; 405. Limiting hole; 406. Limiting block; 5. Sealing plug plate; 6. Stirring component; 601. Drive cover; 602. Variable frequency motor; 603. Bearing ring; 604. Stirring shaft; 605. Stirring blade; 7. Detection cover; 8. Temperature sensor; 9. Detection hole; 10. Pressure sensor; 11. Connecting connector; 12. Solenoid valve; 13. Discharge pipe; 14. Discharge valve; 15. Rubber sealing gasket; 16. Injection hole. Detailed Implementation
[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] Please see Figures 1-4In this embodiment of the present invention, a stirring device for the mixing reaction in the production of p-chlorobenzonitrile includes a reaction vessel 1. A temperature regulating sleeve 2 is fixedly connected to the outer surface of the reaction vessel 1. A cover plate 3 is fixedly installed on the top of the reaction vessel 1. A lifting component 4 is provided above the cover plate 3. A stirring component 6 is provided above the cover plate 3. Two detection covers 7 are embedded in the upper surface of the cover plate 3. A temperature sensor 8 and a pressure sensor 10 are respectively installed on the inner top wall of the two detection covers 7. The temperature sensor 8 is a sensor that can sense temperature and convert it into a usable output signal. The temperature sensor 8 is the core part of the temperature measuring instrument. There are many types. According to the measurement method, it can be divided into two main categories: contact type and non-contact type. According to the sensor material and electronic component characteristics, it can be divided into two categories: resistance temperature detector (RTD) and thermocouple. The pressure sensor 10 is mainly... It consists of an elastic element, a strain gauge, and a measuring circuit. The elastic element deforms under pressure, causing the strain gauge attached to its surface to deform as well. The resistance value of the strain gauge changes, and the measuring circuit converts the change in resistance value into a voltage or current signal, thereby reflecting the magnitude of the pressure. The bottom surface of the cover plate 3 has two detection holes 9, and the upper surface of the cover plate 3 has a material injection hole 16. A sealing plug plate 5 is located above the material injection hole 16, and a rubber sealing gasket 15 is connected to the bottom surface of the sealing plug plate 5. With the setting of temperature sensor 8 and pressure sensor 10, the temperature and pressure of the reaction in the reactor 1 can be monitored in real time, and the data can be fed back to the external control system so that the staff can adjust parameters such as stirring speed and reaction time in a timely manner according to the reaction situation.
[0022] As a further embodiment of this utility model: the stirring component 6 includes a drive cover 601 fixedly installed on the upper surface of the cover plate 3. A variable frequency motor 602 is fixedly installed on the inner top wall of the drive cover 601. A stirring shaft 604 is installed at the output end of the variable frequency motor 602. Multiple stirring blades 605 are connected to the outer surface of the stirring shaft 604. A bearing ring 603 is embedded in the upper surface of the cover plate 3. The inner ring of the bearing ring 603 is connected to the outer surface of the stirring shaft 604. By starting the variable frequency motor 602, the stirring shaft 604 and multiple stirring blades 605 can be driven to rotate, which can fully stir and mix the raw materials in the reactor 1. The setting of the bearing ring 603 can make the stirring shaft 604 rotate more smoothly. In addition, the multiple stirring blades 605 are arranged in a cross pattern, which can mix the raw materials inside the reactor 1 more evenly and at the same time save more effort.
[0023] As a further embodiment of this utility model: the lifting component 4 includes a support frame 401 fixedly mounted on the upper surface of the cover plate 3, a support plate 402 fixedly mounted on the upper surface of the support frame 401, an electric cylinder 403 fixedly mounted on the bottom surface of the support plate 402, a connecting block 404 mounted on the telescopic end of the electric cylinder 403, the bottom surface of the connecting block 404 connected to the upper surface of the sealing plug plate 5, and two limiting holes 405 opened on the inner wall of the support frame 401, with limiting blocks slidably connected to the inner walls of both limiting holes 405. 406, the two limiting blocks 406 are connected to the outer surface of the connecting block 404 on their sides that are close to each other. The lifting component 4 is composed of a support frame 401, a support plate 402, an electric cylinder 403 and a connecting block 404. By extending the electric cylinder 403, the connecting block 404 and the sealing plug plate 5 can be lifted and lowered, thereby opening the injection hole 16 or sealing it, providing mechanical driving force for sealing. Through the cooperation of the limiting block 406 and the limiting hole 405, the lifting and lowering movement of the connecting block 404 can be made more stable.
[0024] As a further improvement of this utility model: the outer surface of the temperature regulating sleeve 2 is connected to two connecting joints 11, and the outer surface of each connecting joint 11 is connected to a solenoid valve 12. The bottom surface of the reaction vessel 1 is connected to a discharge pipe 13, and the outer surface of the discharge pipe 13 is connected to a discharge valve 14. Through the two connecting joints 11 and the solenoid valve 12, an external heating or cooling medium circulation system can be connected. When the reaction temperature is abnormal, the temperature can be quickly adjusted by the corresponding medium to maintain the reaction within a suitable temperature range and improve the reaction stability. By opening the discharge valve 14 on the outer surface of the discharge pipe 13, the chlorobenzonitrile product can be conveniently discharged through the discharge pipe 13.
[0025] The working principle of this utility model is as follows: When raw materials need to be injected, the lifting component 4 is activated, which can drive the sealing plug plate 5 to rise and open the injection hole 16. The operator can inject the raw materials for producing p-chlorobenzonitrile into the reactor 1 through the injection hole 16. After the injection is completed, the lifting component 4 is activated to drive the sealing plug plate 5 to fall and re-block the injection hole 16. Then, the stirring component 6 is activated to fully mix and react the raw materials. During the reaction, the temperature and pressure of the reaction in the reactor 1 can be monitored in real time through the temperature sensor 8 and the pressure sensor 10, so that the operator can adjust the stirring speed, reaction time and other parameters according to the reaction temperature and pressure to ensure that the reaction is carried out under suitable conditions, thereby improving the production efficiency and product quality of p-chlorobenzonitrile.
[0026] The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalent elements of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A stirring device for mixing reactions in the production of p-chlorobenzonitrile, comprising a reaction vessel (1), characterized in that, A temperature regulating sleeve (2) is fixedly connected to the outer surface of the reactor (1). A cover plate (3) is fixedly installed at the top of the reactor (1). A lifting component (4) is provided above the cover plate (3). A stirring component (6) is provided above the cover plate (3). Two detection covers (7) are embedded on the upper surface of the cover plate (3). A temperature sensor (8) and a pressure sensor (10) are respectively installed on the inner top wall of the two detection covers (7). Two detection holes (9) are opened on the bottom surface of the cover plate (3). A material injection hole (16) is opened on the upper surface of the cover plate (3). A sealing plug plate (5) is provided above the material injection hole (16). A rubber sealing gasket (15) is connected to the bottom surface of the sealing plug plate (5).
2. The stirring device for mixing reaction in the production of p-chlorobenzonitrile according to claim 1, characterized in that, The stirring component (6) includes a drive cover (601) fixedly installed on the upper surface of the cover plate (3). A variable frequency motor (602) is fixedly installed on the inner top wall of the drive cover (601). A stirring shaft (604) is installed at the output end of the variable frequency motor (602). A plurality of stirring blades (605) are connected to the outer surface of the stirring shaft (604).
3. The stirring device for the mixing reaction in the production of p-chlorobenzonitrile according to claim 2, characterized in that, The upper surface of the cover plate (3) is inlaid with a bearing ring (603), and the inner ring of the bearing ring (603) is connected to the outer surface of the stirring shaft (604).
4. The stirring device for the mixing reaction in the production of p-chlorobenzonitrile according to claim 1, characterized in that, The lifting component (4) includes a support frame (401) fixedly installed on the upper surface of the cover plate (3), a support plate (402) fixedly installed on the upper surface of the support frame (401), an electric cylinder (403) fixedly installed on the bottom surface of the support plate (402), a connecting block (404) installed on the telescopic end of the electric cylinder (403), and the bottom surface of the connecting block (404) connected to the upper surface of the sealing plug plate (5).
5. The stirring device for the mixing reaction in the production of p-chlorobenzonitrile according to claim 4, characterized in that, The inner wall of the support frame (401) has two limiting holes (405), and the inner walls of the two limiting holes (405) are slidably connected to limiting blocks (406). The side of the two limiting blocks (406) that are close to each other are connected to the outer surface of the connecting block (404).
6. The stirring device for the mixing reaction in the production of p-chlorobenzonitrile according to claim 1, characterized in that, The outer surface of the temperature regulating sleeve (2) is connected to two connecting joints (11), and the outer surface of each of the two connecting joints (11) is connected to a solenoid valve (12).
7. The stirring device for the mixing reaction in the production of p-chlorobenzonitrile according to claim 1, characterized in that, The bottom surface of the reactor (1) is connected to a discharge pipe (13), and the outer surface of the discharge pipe (13) is connected to a discharge valve (14).