Polyol polyether reaction kettle

Abstract

The utility model discloses a polyol polyether reaction kettle, and relates to the technical field of chemical reaction equipment. The feeding device comprises a feeding pipe, wherein a feeding mechanism and a configuration mechanism are arranged on the feeding pipe. By arranging the discharging mechanism, in the using process, raw materials and a certain amount of reactants can be put into the hopper together, then the motor is started, the motor drives the second belt wheel and the small gear through the third rotating shaft, and when the second belt wheel is in the rotating state, the second belt wheel cooperates with the other second belt wheel and the second belt to work, so that the raw materials are fed into the hopper. Meanwhile, when the first rotating shaft rotates, the first belt wheel and the stirring blades are synchronously driven to rotate together, and when the first belt wheel rotates, the first belt wheel is matched with the other first belt wheel and the first belt, so that the second rotating shaft can drive the stirring blades on the second rotating shaft to stir raw materials in the hopper; and raw materials in the hopper can be kept in a flowing state.

Description

Technical Field

[0001] This utility model belongs to the technical field of chemical reaction equipment, and in particular relates to a polyol polyether reaction vessel. Background Technology

[0002] A polyol polyether reactor is a key piece of equipment specifically designed for the synthesis of polyol polyethers. It typically features a high-temperature, high-pressure, and corrosion-resistant reaction chamber to withstand the harsh conditions of polymerization reactions between polyols and raw materials such as ethylene oxide and propylene oxide under the action of specific catalysts. The reactor is equipped with a highly efficient stirring device to ensure thorough and uniform mixing of reactants, guaranteeing a stable and efficient reaction and promoting contact and reaction between components. It also features a precise temperature and pressure monitoring and control system, which can control the reaction environment in real time according to different reaction stages and process requirements, ensuring the reaction proceeds within a suitable temperature and pressure range, thereby precisely controlling key indicators such as the molecular weight and functionality of the polyol polyether. Furthermore, it includes important components such as a feed inlet, a discharge outlet, and safety protection devices, facilitating the input of raw materials, the output of products, and ensuring the safety of equipment and operators during operation. It plays an indispensable core role in the industrial production of polyol polyethers.

[0003] Existing reactors have certain limitations in use, especially regarding the feed inlet. When feeding materials, problems easily arise if the feed rate is large. Because the diameter of the feed pipe is designed for conventional feed rates, when the feed exceeds its normal capacity, the flow of materials within the feed pipe becomes turbulent. Large amounts of material are squeezed and piled up, and some larger or more viscous particles may gradually adhere to and accumulate on the pipe wall, gradually reducing the effective flow cross-sectional area of ​​the feed pipe. As feeding continues, this blockage becomes more severe, eventually leading to complete blockage of the feed pipe. Once the feed pipe is blocked, materials cannot smoothly enter the reactor, and the chemical reaction inside the reactor will not proceed according to the predetermined process and conditions due to the lack of raw materials. The reaction progress will be severely delayed, and the conversion rate and yield will be greatly reduced. Utility Model Content

[0004] The purpose of this invention is to provide a polyol polyether reactor. By incorporating a feeding mechanism, it solves the problem that easily arises when the material is fed in large quantities. Since the diameter of the feed pipe is designed for conventional feeding volumes, when the feed exceeds its normal capacity, the flow of material within the feed pipe becomes turbulent. Large amounts of material are squeezed and piled up, and some larger or more viscous particles may gradually adhere to and accumulate on the pipe wall, gradually reducing the effective flow cross-sectional area of ​​the feed pipe. As feeding continues, this blockage worsens, eventually leading to complete blockage of the feed pipe. Once the feed pipe is blocked, material cannot smoothly enter the reactor, and the chemical reaction inside the reactor will not proceed according to the predetermined process and conditions due to a lack of raw materials. The reaction progress will be severely delayed, and the conversion rate and yield will be significantly reduced.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a polyol polyether reactor, including a feed pipe, on which a feeding mechanism and a configuration mechanism are provided;

[0007] The feeding mechanism includes a hopper fixedly connected to the outer wall of the feeding pipe, the hopper communicating with the feeding pipe, a rotating shaft rotatably connected to the inner wall of the feeding pipe, the left and right ends of the rotating shaft extending outside the feeding pipe, an auger blade fixedly sleeved on the outer wall of the rotating shaft rotatably, the auger blade being adapted to the feeding pipe, a rotating shaft rotatably connected to the inner wall of the hopper, the left end of the rotating shaft rotatably extending outside the hopper, an agitator blade fixedly sleeved on the outer wall of the rotating shaft rotatably, the agitator blade being adapted to the hopper.

[0008] Furthermore, pulleys are fixedly sleeved on the outer walls of both shaft one and shaft two, and belts are wound around the outer walls of the two pulleys. An L-shaped rod is fixedly sleeved on the outer wall of the feed pipe.

[0009] Furthermore, the configuration mechanism includes two hoops disposed on the right side of the feed pipe, the inner walls of the two hoops are rotatably fitted with the reactor, the right end of the feed pipe extends into the reactor and is rotatably connected to the reactor, and the feed pipe communicates with the reactor.

[0010] Furthermore, the right end of the L-shaped rod one is fixedly connected to the corresponding hoop, and the left side of the corresponding hoop is fixedly connected to the L-shaped rod two. The rotating shaft one passes through the reactor and the L-shaped rod two and is rotatably connected to the reactor and the L-shaped rod two. The outer wall of the rotating shaft one is fixedly fitted with a stirring blade, and the stirring blade is adapted to the reactor.

[0011] Furthermore, a motor is fixedly connected to the right side of the L-shaped rod two, and the output shaft of the motor is fixedly connected to a rotating shaft three via a coupling. The rotating shaft three passes through the L-shaped rod two and the two hoop rings and is rotatably connected to the L-shaped rod two and the two hoop rings.

[0012] Furthermore, pulleys 2 are fixedly sleeved on the outer walls of both shaft 1 and shaft 3, and belts 2 are wound around the outer walls of the two pulleys 2.

[0013] Furthermore, a small gear is fixedly sleeved on the outer wall of the rotating shaft three, and a large gear is fixedly sleeved on the outer wall of the reactor. The small gear meshes with the large gear, and a discharge pipe is fixedly connected to the outer wall of the reactor, and the discharge pipe communicates with the reactor.

[0014] This utility model has the following beneficial effects:

[0015] (1) By setting up a discharge mechanism, the present invention can put raw materials and a certain amount of reactants into the hopper together during use. Then, the motor is started and the motor will drive the pulley two and the pinion gear respectively through the rotating shaft three. When the pulley two is rotating, it will work together with the other pulley two and the belt two to make the rotating shaft one and the rotating shaft three rotate synchronously. At the same time, when the rotating shaft one rotates, it will also drive the pulley one and the stirring blade to rotate together. When the pulley one rotates, it will also cooperate with the other pulley one and the belt one, so that the rotating shaft two can drive the stirring blade on it to stir the raw materials in the hopper, ensuring that the raw materials in the hopper can maintain a flowing state and avoid adverse effects on the feeding process due to blockage.

[0016] (2) By setting up a configuration mechanism, when the raw materials and reactants in the hopper enter the feed pipe, the screw conveyor blades on the rotating shaft can evenly transport the raw materials in the feed pipe to the inside of the reactor under the driving action of the rotating shaft, thereby further improving the feeding efficiency. The raw materials and reactants entering the reactor will be initially mixed under the stirring action of the stirring blades. At the same time, during the rotation of the rotating shaft, the rotating shaft will also drive the small gear on it to mesh with the large gear on the outer wall of the reactor, thereby causing the reactor to rotate in the opposite direction to the stirring blades, thereby effectively improving the stirring effect of the raw materials in the reactor.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the feeding mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the configuration mechanism of this utility model;

[0022] Figure 4 for Figure 2 A magnified view of part A in the diagram;

[0023] Figure 5 for Figure 3 A magnified view of part B in the diagram.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Feed pipe; 2. Feeding mechanism; 3. Configuration mechanism; 21. Hopper; 22. Shaft 1; 23. Screwdriver blade; 24. Shaft 2; 25. Agitator blade; 26. Pulley 1; 27. Belt 1; 28. L-shaped rod 1; 31. Hoop; 32. Reactor; 33. L-shaped rod 2; 34. Stirring blade; 35. Motor; 36. Shaft 3; 37. Pulley 2; 38. Belt 2; 39. Pinion; 391. Gear; 392. Discharge pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 As shown, this utility model is a polyol polyether reactor, including a feed pipe 1, and a feeding mechanism 2 and a configuration mechanism 3 are provided on the feed pipe 1;

[0028] The feeding mechanism 2 includes a hopper 21 fixedly connected to the outer wall of the feeding pipe 1. The hopper 21 communicates with the feeding pipe 1. A rotating shaft 22 is rotatably connected to the inner wall of the feeding pipe 1. The left and right ends of the rotating shaft 22 extend to the outside of the feeding pipe 1. An auger blade 23 is fixedly sleeved on the outer wall of the rotating shaft 22. The auger blade 23 is adapted to the feeding pipe 1. A rotating shaft 24 is rotatably connected to the inner wall of the hopper 21. The left end of the rotating shaft 24 extends to the outside of the hopper 21. An agitator blade 25 is fixedly sleeved on the outer wall of the rotating shaft 24. The agitator blade 25 is adapted to the hopper 21. A pulley 26 is fixedly sleeved on the outer walls of both rotating shaft 22 and rotating shaft 24. A belt 27 is wound around the outer walls of the two pulleys 26. An L-shaped rod 28 is fixedly sleeved on the outer wall of the feeding pipe 1.

[0029] By setting up a discharge mechanism, raw materials and a certain amount of reactants can be fed into the hopper 21 during use. Then, the motor 35 is started, and the motor 35 drives the pulley 37 and the pinion 39 through the shaft 36. When the pulley 37 is rotating, it will work in coordination with the other pulley 37 and the belt 38 to make the shaft 22 and the shaft 36 rotate synchronously. At the same time, when the shaft 22 rotates, it will also drive the pulley 26 and the stirring blade 34 to rotate together. When the pulley 26 rotates, it will also cooperate with the other pulley 26 and the belt 27 to enable the shaft 24 to drive the stirring blade 25 to stir the raw materials in the hopper 21, ensuring that the raw materials in the hopper 21 can remain in a flowing state and avoid adverse effects on the feeding process due to blockage.

[0030] The configuration mechanism 3 includes two hoops 31 located on the right side of the feed pipe 1. A reactor 32 is rotatably fitted onto the inner wall of the two hoops 31. The right end of the feed pipe 1 extends into the reactor 32 and is rotatably connected to it. The feed pipe 1 communicates with the reactor 32. The right end of L-shaped rod 28 is fixedly connected to the corresponding hoop 31. An L-shaped rod 33 is fixedly connected to the left side of the corresponding hoop 31. A rotating shaft 22 passes through both the reactor 32 and the L-shaped rod 33 and is rotatably connected to both. A stirring blade 34 is fixedly fitted onto the outer wall of the rotating shaft 22. The stirring blade 34 is adapted to the reactor 32. The right side of the L-shaped rod 33... A motor 35 is fixedly connected. The output shaft of the motor 35 is fixedly connected to a rotating shaft 36 via a coupling. The rotating shaft 36 passes through an L-shaped rod 33 and two hoops 31 and is rotatably connected to the L-shaped rod 33 and the two hoops 31. The outer walls of the rotating shaft 22 and the rotating shaft 36 are fixedly fitted with pulleys 37. The outer walls of the two pulleys 37 are wound with belts 38. The outer wall of the rotating shaft 36 is fixedly fitted with a small gear 39. The outer wall of the reactor 32 is fixedly fitted with a large gear 391. The small gear 39 meshes with the large gear 391. The outer wall of the reactor 32 is fixedly connected with a discharge pipe 392, which communicates with the reactor 32.

[0031] By setting up a configuration mechanism, when the raw materials and reactants in the hopper 21 enter the feed pipe 1, the auger blades 23 on the rotating shaft 22 can evenly transport the raw materials in the feed pipe 1 to the inside of the reactor 32 under the driving action of the rotating shaft 22, thereby further improving the feeding efficiency. The raw materials and reactants entering the reactor 32 will be initially mixed under the stirring action of the stirring blades 34. At the same time, during the rotation of the rotating shaft 36, the rotating shaft 36 will also drive the small gear 39 on it to mesh with the large gear 391 on the outer wall of the reactor 32, so that the reactor 32 can rotate in the opposite direction to the stirring blades 34, thereby effectively improving the stirring effect of the raw materials in the reactor 32.

[0032] A specific application of this embodiment is as follows: During use, raw materials and a specific amount of reactant can be added together into the hopper 21. Then, the motor 35 is started. The motor 35 will drive the pulley 37 and the pinion 39 respectively via the shaft 36. When the pulley 37 is rotating, it will work in coordination with the other pulley 37 and the belt 38 to make the shaft 22 and the shaft 36 rotate synchronously. At the same time, when the shaft 22 rotates, it will also drive the pulley 26 and the stirring blade 34 to rotate. When the pulley 26 rotates, it will also cooperate with the other pulley 26 and the belt 27, so that the shaft 24 drives the stirring blade 25 to stir the raw materials in the hopper 21, ensuring that the raw materials are stirred. The raw materials in hopper 21 can maintain a flowing state, avoiding adverse effects on the feeding process due to blockage. When the raw materials and reactants in hopper 21 enter feed pipe 1, the auger blades 23 on the rotating shaft 22 can evenly transport the raw materials in feed pipe 1 to the inside of reactor 32 under the action of the rotating shaft 22, thereby further improving the feeding efficiency. The raw materials and reactants entering reactor 32 will be initially mixed under the stirring action of stirring blade 34. At the same time, during the rotation of rotating shaft 36, rotating shaft 36 will also drive the small gear 39 on it to mesh with the large gear 391 on the outer wall of reactor 32, so that reactor 32 can rotate in the opposite direction to stirring blade 34, thereby effectively improving the stirring effect of raw materials in reactor 32.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A polyol polyether reactor, comprising a feed pipe (1), wherein the feed pipe (1) is provided with a feeding mechanism (2) and a dispensing mechanism (3), characterized in that... ； The feeding mechanism (2) includes a hopper (21) fixedly connected to the outer wall of the feeding pipe (1). The hopper (21) is connected to the feeding pipe (1). The inner wall of the feeding pipe (1) is rotatably connected to a rotating shaft (22). The left and right ends of the rotating shaft (22) extend to the outside of the feeding pipe (1). The outer wall of the rotating shaft (22) is fixedly fitted with an auger blade (23). The auger blade (23) is adapted to the feeding pipe (1). The inner wall of the hopper (21) is rotatably connected to a rotating shaft (24). The left end of the rotating shaft (24) extends to the outside of the hopper (21). The outer wall of the rotating shaft (24) is fixedly fitted with an agitator blade (25). The agitator blade (25) is adapted to the hopper (21).

2. The polyol polyether reactor according to claim 1, characterized in that, The outer walls of the first rotating shaft (22) and the second rotating shaft (24) are both fixedly fitted with pulleys (26), and the outer walls of the two pulleys (26) are wrapped with belts (27). The outer wall of the feed pipe (1) is fixedly fitted with an L-shaped rod (28).

3. The polyol polyether reactor according to claim 2, characterized in that, The configuration mechanism (3) includes two hoops (31) on the right side of the feed pipe (1). The inner walls of the two hoops (31) are rotatably fitted with the reactor (32). The right end of the feed pipe (1) extends into the reactor (32) and is rotatably connected to the reactor (32). The feed pipe (1) is connected to the reactor (32).

4. The polyol polyether reactor according to claim 3, characterized in that, The right end of the L-shaped rod (28) is fixedly connected to the corresponding hoop (31), and the left side of the corresponding hoop (31) is fixedly connected to the L-shaped rod (33). The rotating shaft (22) passes through the reactor (32) and the L-shaped rod (33) and is rotatably connected to the reactor (32) and the L-shaped rod (33). The outer wall of the rotating shaft (22) is fixedly fitted with a stirring blade (34), which is adapted to the reactor (32).

5. A polyol polyether reactor according to claim 4, characterized in that, A motor (35) is fixedly connected to the right side of the L-shaped rod two (33). The output shaft of the motor (35) is fixedly connected to a rotating shaft three (36) through a coupling. The rotating shaft three (36) passes through the L-shaped rod two (33) and the two hoop rings (31) and is rotatably connected to the L-shaped rod two (33) and the two hoop rings (31).

6. The polyol polyether reactor according to claim 5, characterized in that, Both the outer walls of the first rotating shaft (22) and the third rotating shaft (36) are fixedly fitted with pulleys (37), and belts (38) are wound around the outer walls of the two pulleys (37).

7. The polyol polyether reactor according to claim 6, characterized in that, A small gear (39) is fixedly sleeved on the outer wall of the rotating shaft (36), and a large gear (391) is fixedly sleeved on the outer wall of the reactor (32). The small gear (39) meshes with the large gear (391). A discharge pipe (392) is fixedly connected to the outer wall of the reactor (32), and the discharge pipe (392) communicates with the reactor (32).

Images