A phosphoric acid triisobutyl ester synthesis reactor

Abstract

The application discloses a triisobutyl phosphate synthesis reaction kettle, which comprises a reaction kettle body, a solid raw material processing assembly is fixedly connected to the upper surface of the reaction kettle body, the solid raw material processing assembly is composed of a fixed bin and a grinding roller, the grinding roller is connected with a stirring shaft through a linkage part, and the grinding roller is rotated for grinding when the stirring shaft is in a rotating state; through the arrangement of the solid raw material processing assembly, the solid material can be mechanically ground and crushed by the grinding roller connected with the stirring shaft before entering the reaction kettle body, so that the possible caked material is crushed into fine and uniform particles, the physical state of the material when being put in is fundamentally improved, the uniform dispersion of the material in a reaction liquid is ensured, and favorable conditions are created for subsequent efficient and uniform chemical reaction.

Description

Technical Field

[0001] This application relates to the field of chemical reaction equipment technology, and in particular to a triisobutyl phosphate synthesis reactor. Background Technology

[0002] Triisobutyl phosphate is an important chemical product and solvent with wide applications in industrial production. Its synthesis process is usually carried out in a reactor equipped with a stirring device, which requires mixing solid raw materials with liquid raw materials and reacting them.

[0003] In this synthesis process, some solid raw materials, such as some catalysts and solid reactants, are prone to agglomeration or clumping during the process of being added to the reactor due to differences in their physical properties. When these agglomerated materials are directly added to the reaction liquid, they are difficult to disperse quickly and uniformly in the liquid phase due to their small specific surface area and poor dispersibility. The outer layer of agglomerated material may react rapidly with the liquid to form a coating, which may prevent the internal material from continuing to participate in the reaction, resulting in incomplete reaction, reduced raw material utilization, and uneven distribution of material in the reaction system. This may cause local reactions to be too fast or too slow, affecting the heat distribution and process control of the reaction. This not only reduces reaction efficiency and product yield, but may also affect product quality due to local overheating or uneven concentration, and may even bring about safety hazards in production.

[0004] In other words, the existing technology has the following technical problems: ordinary triisobutyl phosphate reactors suffer from uneven feed distribution due to the agglomeration of solid raw materials. Therefore, a triisobutyl phosphate synthesis reactor is proposed to address the above problems. Utility Model Content

[0005] This embodiment provides a triisobutyl phosphate synthesis reactor to solve the problem of uneven feed distribution caused by the agglomeration of solid raw materials in ordinary triisobutyl phosphate reactors in the prior art.

[0006] According to one aspect of this application, a triisobutyl phosphate synthesis reactor is provided, including a reactor body, a motor support frame fixedly connected to the upper surface of the reactor body, and a drive motor fixedly installed on the upper surface of the motor support frame. One end of the stirring shaft is fixedly connected to the output shaft of the drive motor, and the other end of the stirring shaft extends into the inner cavity of the reactor body. A stirring paddle is provided at the lower end of the stirring shaft located in the inner cavity of the reactor body. A solid raw material processing component is also fixedly connected to the upper surface of the reactor body. The solid raw material processing component consists of a fixed chamber and a grinding roller. The grinding roller is connected to the stirring shaft through a linkage part. When the stirring shaft is rotating, the grinding roller rotates and grinds. The solid raw material processing component is also connected to a rinsing component. The inlet end of the rinsing component is connected to the lower part of the reactor body, and the outlet end of the rinsing component is connected to the top of the fixed chamber. This is used to automatically perform rinsing treatment when grinding solid raw materials.

[0007] The aforementioned triisobutyl phosphate synthesis reactor has a fixed chamber fixedly disposed on the upper surface of the reactor body, a discharge port at the bottom of the fixed chamber, the discharge port communicating with the inner cavity of the reactor body, and a feed hopper fixedly connected to the upper wall of the fixed chamber.

[0008] The triisobutyl phosphate synthesis reactor has rotating shafts rotatably connected to both sides of the inner cavity of the fixed chamber, and grinding rollers are sleeved on both rotating shafts.

[0009] In the aforementioned triisobutyl phosphate synthesis reactor, one end of each of the two rotating shafts penetrates the inner wall of the fixed chamber and extends to the outside of the wall. One end of each of the two rotating shafts is fixedly connected to a linkage gear, and the two linkage gears mesh with each other.

[0010] The aforementioned triisobutyl phosphate synthesis reactor includes a linkage mechanism comprising a first bevel gear and a second bevel gear. One end of the rotating shaft is fixedly connected to the first bevel gear, and the second bevel gear is sleeved on the stirring shaft. The second bevel gear and the first bevel gear mesh with each other.

[0011] The triisobutyl phosphate synthesis reactor, wherein the rinsing assembly includes a connecting cylinder, a movable piston, and a movable guide rod. The movable piston is slidably connected in the inner cavity of the connecting cylinder. One end of the movable guide rod is fixedly connected to one side wall of the movable piston. The other end of the movable guide rod passes through the side wall of one end of the connecting cylinder and extends to the outside of the wall.

[0012] The aforementioned triisobutyl phosphate synthesis reactor has an input hose and an output hose connected to a connecting cylinder on the other side of the moving piston. The other end of the input hose extends into the inner cavity of the reactor body, and the other end of the output hose extends into the inner cavity of the feed hopper and is fixedly connected to the feed hopper.

[0013] The triisobutyl phosphate synthesis reactor is equipped with check valves on both the inlet hose and the outlet hose.

[0014] The aforementioned triisobutyl phosphate synthesis reactor has a first hinge frame fixedly connected to the other end of the connecting cylinder, the first hinge frame being rotatably connected to the upper surface of the reactor body, and a second hinge frame fixedly connected to the other end of the moving guide rod, the second hinge frame being rotatably connected to the outer edge of the bottom surface of the linkage gear.

[0015] The aforementioned triisobutyl phosphate synthesis reactor has legs at the bottom of the reactor body and a discharge port at the center of the bottom of the reactor body.

[0016] In order to solve the problem in the prior art where, during the synthesis of triisobutyl phosphate in a conventional reactor, some solid materials are unevenly distributed due to differences in density and surface properties during the input of some solid materials, this application designs a solid raw material processing component. By setting up this component, before the solid materials enter the reactor body, a grinding roller linked to the stirring shaft can mechanically grind and crush them, pulverizing any potential agglomerated materials into fine, uniform particles. This fundamentally improves the physical state of the materials upon input, ensuring their proper distribution in the reaction solution. Uniform dispersion creates favorable conditions for subsequent efficient and uniform chemical reactions. In addition, to further optimize the process and prevent the finely ground materials from remaining in the feed channel and causing waste or cross-contamination, this application also includes a rinsing component. Through the linkage between the rinsing component and the grinding mechanism, a small amount of liquid in the reaction vessel can be automatically drawn and sprayed into the feed hopper and fixed chamber during or after grinding, effectively rinsing the residual materials. On the one hand, all raw materials are accurately delivered into the reaction zone, improving the utilization rate of raw materials, and on the other hand, the feed system is kept clean, realizing high efficiency and automation of the feeding process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a front view structural diagram of this application; Figure 3 This is a schematic diagram of the rear view structure of this application; Figure 4 This is a top view of the structure of this application; Figure 5 For the purposes of this application Figure 1 A magnified schematic diagram of the structure at point A; Figure 6 This is a schematic diagram of the solid material processing component of this application; Figure 7 This is a schematic diagram of the internal structure of the rinsing assembly of this application.

[0019] In the diagram: 1. Reactor body; 2. Support leg; 3. Motor support frame; 4. Drive motor; 5. Stirring shaft; 6. Solid raw material processing assembly; 601. Fixed chamber; 6011. Discharge port; 602. Feed hopper; 603. Rotating shaft; 604. Linkage gear; 605. Grinding roller; 606. First bevel gear; 607. Second bevel gear; 7. Flushing assembly; 701. Connecting cylinder; 702. Moving piston; 703. Moving guide rod; 704. First hinge frame; 705. Second hinge frame; 706. Input hose; 707. Output hose; 8. Discharge port. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] Connect drive motor 4 to the power supply, please refer to [link / reference]. Figure 1 and Figure 2 As shown, a triisobutyl phosphate synthesis reactor includes a reactor body 1, a motor support frame 3 is fixedly connected to the upper surface of the reactor body 1, and a drive motor 4 is fixedly installed on the upper surface of the motor support frame 3. The output shaft of the drive motor 4 is fixedly connected to one end of the stirring shaft 5, and the other end of the stirring shaft 5 extends into the inner cavity of the reactor body 1. A stirring paddle is provided at the lower end of the stirring shaft 5 located in the inner cavity of the reactor body 1. A solid raw material processing component 6 is also fixedly connected to the upper surface of the reactor body 1. The solid raw material processing component 6 consists of a fixed chamber 601 and a grinding roller 605. The grinding roller 605 is connected to the stirring shaft 5 through a linkage part. When the stirring shaft 5 is rotating, the grinding roller 605 performs rotational grinding. The solid raw material processing component 6 is also connected to a rinsing component 7. The inlet end of the rinsing component 7 is connected to the lower part of the reactor body 1, and the outlet end of the rinsing component 7 is connected to the top of the fixed chamber 601. It is used to automatically perform rinsing treatment when grinding solid raw materials.

[0022] To address the problem in existing technologies where uneven distribution of solid materials occurs during the synthesis of triisobutyl phosphate in conventional reactors due to differences in density and surface properties, this application designs a solid raw material processing component 6. This component 6 allows for the mechanical grinding and crushing of solid materials before they enter the reactor body 1 using a grinding roller 605 linked to the stirring shaft 5. This breaks down any potential agglomerates into fine, uniform particles, fundamentally improving the physical state of the materials upon input and ensuring their uniform dispersion in the reaction solution. The subsequent efficient and uniform chemical reaction creates favorable conditions. In addition, in order to further optimize the process and prevent the fine powder material that has been ground from remaining in the feed channel, causing waste or cross-contamination, this application also sets up a rinsing component 7. Through the linkage between the rinsing component 7 and the grinding mechanism, a small amount of liquid in the reaction vessel can be automatically drawn and sprayed into the feed hopper 602 and the fixed chamber 601 during or after grinding, so as to effectively rinse the residual material. On the one hand, all raw materials are accurately delivered into the reaction zone, improving the raw material utilization rate, and on the other hand, the feed system is kept clean, realizing the high efficiency and automation of the feeding process.

[0023] For specific technical solutions, please refer to Figure 3 and Figure 5 As shown, the fixed chamber 601 is fixedly installed on the upper surface of the reactor body 1. The bottom of the fixed chamber 601 is provided with a discharge port 6011, which is connected to the inner cavity of the reactor body 1. The upper wall of the fixed chamber 601 is fixedly connected to a feed hopper 602. Through this technical solution, the feed hopper 602 provides a centralized input channel for solid raw materials. The material enters the fixed chamber 601 through the feed hopper 602 for pretreatment. The treated material finally falls evenly into the reactor body 1 through the discharge port 6011 to prepare for the subsequent synthesis reaction. This structure realizes the directional conveying and pretreatment of materials, avoiding the problems of flying or uneven distribution that may occur when materials are directly fed into the reactor.

[0024] For specific technical solutions, please refer to Figure 6 As shown, rotating shafts 603 are rotatably connected to both sides of the inner cavity of the fixed chamber 601. Grinding rollers 605 are sleeved on both rotating shafts 603. Through this technical solution, the two grinding rollers 605 are arranged opposite to each other to form the core grinding mechanism. When the rotating shafts 603 drive the grinding rollers 605 to rotate in opposite directions, they can squeeze and grind the solid raw materials that fall from the feed hopper 602, which may be agglomerated or have uneven particle size, and break them into finer and more uniform particles. This effectively solves the agglomeration problem caused by the difference in material density and surface properties, and allows solid materials to enter the reaction system in a more uniform physical state, thereby promoting the uniformity and efficiency of the reaction.

[0025] As a further technical solution, see Figure 3 As shown, one end of each of the two rotating shafts 603 penetrates the inner wall of the fixed chamber 601 and extends to the outside of the wall. One end of each of the two rotating shafts 603 is fixedly connected to a linkage gear 604. The two linkage gears 604 mesh with each other. Through this technical solution, the meshing transmission of the two linkage gears 604 ensures that when one rotating shaft 603 is driven, the other rotating shaft 603 will rotate synchronously in the opposite direction. This design ensures that the two grinding rollers 605 can achieve stable relative motion, thereby producing an effective grinding effect on the material. At the same time, only one power source is needed, simplifying the transmission structure and improving the synchronization and reliability of operation.

[0026] Furthermore, to ensure the stability and lubrication of the bevel gear transmission during long-term operation, a protective cover (not shown in the figure) can be provided outside the fixed chamber 601 to cover the first bevel gear 606 and the second bevel gear 607. This protective cover can prevent foreign objects from getting caught in the gears and causing damage, and it can also form a sealed space to facilitate the addition of grease and extend the service life of the transmission components.

[0027] Furthermore, in order to solve the sealing problem at the connection between the rotating shaft 603 and the fixed chamber 601 and prevent material leakage or foreign objects from entering, a sealing ring or mechanical seal is provided at the penetration point between the rotating shaft 603 and the fixed chamber 601 to ensure the airtightness of the grinding chamber, which not only avoids material loss but also ensures a clean and safe working environment.

[0028] For a preferred technical solution, please refer to Figure 5 As shown, the linkage includes a first bevel gear 606 and a second bevel gear 607. The first bevel gear 606 is fixedly connected to one end of the rotating shaft 603, and the second bevel gear 607 is sleeved on the stirring shaft 5. The second bevel gear 607 and the first bevel gear 606 mesh with each other. This technical solution utilizes bevel gears to change the direction of power transmission, transmitting the rotational motion of the stirring shaft 5 to the rotating shaft 603 of the grinding roller 605. This allows the power of the grinding assembly 6 to directly originate from the drive motor 4, eliminating the need for an additional independent drive device. This achieves power sharing and efficient utilization, reducing equipment costs and energy consumption. Simultaneously, it enables simultaneous grinding and addition of materials during stirring operations, making the process more continuous and automated.

[0029] As a further technical solution, see Figure 4 and Figure 7As shown, the flushing assembly 7 includes a connecting cylinder 701, a movable piston 702, and a movable guide rod 703. The movable piston 702 is slidably connected in the inner cavity of the connecting cylinder 701. One end of the movable guide rod 703 is fixedly connected to one side wall of the movable piston 702. The other end of the movable guide rod 703 passes through the side wall of one end of the connecting cylinder 701 and extends outside the wall. Through this technical solution, the connecting cylinder 701, the movable piston 702, and the movable guide rod 703 together constitute a piston pump structure. When the movable guide rod 703 is pushed or pulled by an external force, it will drive the movable piston 702 to reciprocate within the connecting cylinder 701, thereby changing the volume and pressure inside the cylinder and realizing the function of fluid intake and discharge, providing a power basis for automatic flushing.

[0030] As a preferred technical solution, please refer to Figure 7 As shown, one end of an input hose 706 and one end of an output hose 707 are connected to a connecting cylinder 701 located on the other side of the moving piston 702. The other end of the input hose 706 extends into the inner cavity of the reactor body 1, and the other end of the output hose 707 extends into the inner cavity of the feed hopper 602 and is fixedly connected to the feed hopper 602. Through this technical solution, the input hose 706 is used to draw solvent or reaction liquid from the reactor body 1, and the output hose 707 is used to transport the drawn liquid to the feed hopper 602 or the fixed chamber 601. This allows the liquid of the reaction system itself to be used to rinse the residual solid raw materials after grinding, flushing the residual materials that may adhere to the feed hopper 602 and the fixed chamber 601 into the reactor, improving the utilization rate of raw materials, avoiding cross-contamination, and eliminating the need to introduce an external water source, thus ensuring the stability of the composition and purity of the reaction system.

[0031] As a specific technical solution, both the input hose 706 and the output hose 707 are equipped with check valves. This technical solution ensures that the liquid can only flow in one direction within the pipeline. Specifically, the check valve on the input hose 706 only allows liquid to flow from the reactor to the connecting cylinder 701, and the check valve on the output hose 707 only allows liquid to flow from the connecting cylinder 701 to the feed hopper 602. This effectively prevents backflow of liquid, ensuring that each reciprocating motion of the piston pump flushing assembly effectively completes one liquid intake and discharge process, making the flushing action reliable and efficient.

[0032] For a preferred technical solution, please refer to Figure 7As shown, a first hinge frame 704 is fixedly connected to the other end of the connecting cylinder 701. The first hinge frame 704 is rotatably connected to the upper surface of the reactor body 1. A second hinge frame 705 is fixedly connected to the other end of the moving guide rod 703. The second hinge frame 705 is rotatably connected to the outer edge of the bottom surface of the linkage gear 604. The bottom of the reactor body 1 is provided with support legs 2, and a discharge port 8 is provided at the center of the bottom of the reactor body 1. Through this technical solution, the first hinge frame 704 connects the connecting cylinder 701... 1. The hinge is in a fixed position, allowing it to swing freely at a certain angle. The second hinge frame 705 eccentrically connects the end of the moving guide rod 703 to the side of the rotating linkage gear 604. When the linkage gear 604 rotates with the rotating shaft 603, it will drive the moving guide rod 703 to reciprocate through the second hinge frame 705, thereby driving the piston pump to work and converting the rotational motion of the grinding roller 605 into the reciprocating motion required by the rinsing assembly 7. This realizes the complete mechanical linkage and automated operation of grinding and rinsing without the need for additional control or power.

[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A triisobutyl phosphate synthesis reactor, comprising a reactor body (1), wherein a motor support frame (3) is fixedly connected to the upper surface of the reactor body (1), and a drive motor (4) is fixedly installed on the upper surface of the motor support frame (3). Its features are: The output shaft of the drive motor (4) is fixedly connected to one end of the stirring shaft (5), and the other end of the stirring shaft (5) extends into the inner cavity of the reactor body (1). A stirring paddle is provided at the lower end of the stirring shaft (5) located in the inner cavity of the reactor body (1). A solid raw material processing component (6) is also fixedly connected to the upper surface of the reactor body (1). The solid raw material processing component (6) consists of a fixed chamber (601) and a grinding roller (605). The grinding roller (605) is connected to the stirring shaft (5) through a linkage part. When the stirring shaft (5) is in a rotating state, the grinding roller (605) performs rotational grinding. The solid raw material processing component (6) is also connected to a rinsing component (7). The inlet end of the rinsing component (7) is connected to the lower part of the reactor body (1), and the outlet end of the rinsing component (7) is connected to the top of the fixed chamber (601) along the fixed chamber (601). It is used to automatically perform rinsing treatment when grinding solid raw materials.

2. The triisobutyl phosphate synthesis reactor according to claim 1, characterized in that: The fixed chamber (601) is fixedly installed on the upper surface of the reactor body (1). The bottom of the fixed chamber (601) is provided with a discharge port (6011), which is connected to the inner cavity of the reactor body (1). The upper wall of the fixed chamber (601) is fixedly connected with a feed hopper (602).

3. The triisobutyl phosphate synthesis reactor according to claim 2, characterized in that: The inner cavity of the fixed chamber (601) is rotatably connected to two rotating shafts (603), and grinding rollers (605) are sleeved on both rotating shafts (603).

4. The triisobutyl phosphate synthesis reactor according to claim 3, characterized in that: One end of each of the two rotating shafts (603) penetrates the inner wall of the fixed chamber (601) and extends to the outside of the wall. One end of each of the two rotating shafts (603) is fixedly connected to a linkage gear (604), and the two linkage gears (604) mesh with each other.

5. The triisobutyl phosphate synthesis reactor according to claim 3, characterized in that: The linkage includes a first bevel gear (606) and a second bevel gear (607). The first bevel gear (606) is fixedly connected to one end of one of the rotating shafts (603), and the second bevel gear (607) is sleeved on the stirring shaft (5). The second bevel gear (607) and the first bevel gear (606) mesh with each other.

6. The triisobutyl phosphate synthesis reactor according to claim 4, characterized in that: The flushing assembly (7) includes a connecting cylinder (701), a movable piston (702), and a movable guide rod (703). The movable piston (702) is slidably connected in the inner cavity of the connecting cylinder (701). One end of the movable guide rod (703) is fixedly connected to one side wall of the movable piston (702). The other end of the movable guide rod (703) passes through the side wall of one end of the connecting cylinder (701) and extends to the outside of the wall.

7. The triisobutyl phosphate synthesis reactor according to claim 6, characterized in that: One end of the input hose (706) and the output hose (707) are connected to the connecting cylinder (701) on the other side of the moving piston (702). The other end of the input hose (706) extends into the inner cavity of the reactor body (1), and the other end of the output hose (707) extends into the inner cavity of the feed hopper (602) and is fixedly connected to the feed hopper (602).

8. The triisobutyl phosphate synthesis reactor according to claim 7, characterized in that: Both the input hose (706) and the output hose (707) are equipped with check valves.

9. The triisobutyl phosphate synthesis reactor according to claim 8, characterized in that: A first hinge frame (704) is fixedly connected to the other end of the connecting cylinder (701). The first hinge frame (704) is rotatably connected to the upper surface of the reactor body (1). A second hinge frame (705) is fixedly connected to the other end of the moving guide rod (703). The second hinge frame (705) is rotatably connected to the outer edge of the bottom surface of the linkage gear (604).

10. The triisobutyl phosphate synthesis reactor according to claim 1, characterized in that: The bottom of the reactor body (1) is provided with support legs (2), and the center of the bottom of the reactor body (1) is provided with a discharge port (8).

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