Phosphorus-containing biopolyol reactor

Abstract

This utility model discloses a phosphorus-containing biopolyol reactor, including a reactor body. A stirring motor is fixed to the top of the reactor body, and a rotating rod is fixed through the output shaft of the stirring motor and passed through the reactor body. A stirring rod is fixed to the bottom end of the rotating rod, and multiple fixing rods are fixed to the outer wall of the rotating rod. In this phosphorus-containing biopolyol reactor, when the rotating rod rotates with the stirring rod, it also rotates a spiral blade. The rotation of the spiral blade causes the reactants below to move upward through an inclined surface and then fall down, improving the stirring efficiency. A nitrogen tank and a water pump are connected to the gas pipe and water pipe. During stirring, nitrogen gas is introduced into the connecting pipe and the annular pipe through a valve, and then enters the interior of the reactor body through a nozzle, forming a bubble cluster in the reactants and generating forced convection, which further significantly improves the uniformity of material mixing. After the reaction is complete, the reactants are discharged, and the water pump is started, allowing cleaning water to enter the reactor body through a valve for cleaning.

Description

Technical Field

[0001] This utility model relates to the field of polyol reaction vessel technology, specifically to a phosphorus-containing bio-polyol reaction vessel. Background Technology

[0002] A polyol reactor is an experimental device specifically designed for polyol synthesis reactions, primarily used in laboratories, pilot-scale production, and small-batch production. It features small size, compact structure, and ease of operation, making it suitable for the synthesis of various polyols.

[0003] Existing polymerization reactors used to prepare polyols have certain defects. The stirring components inside the reactor only perform ordinary stirring of the reaction materials, resulting in low mixing efficiency and requiring long-term stirring to achieve uniform mixing. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a phosphorus-containing biopolyol reactor, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a phosphorus-containing biopolyol reactor, including a reactor body, a stirring motor fixed to the top of the reactor body, a rotating rod fixed through the output shaft of the stirring motor, a stirring rod fixed to the bottom end of the rotating rod, and multiple fixing rods fixed to the outer side wall of the rotating rod;

[0006] An inner spiral blade is fixed to the top of the fixing rod, and an outer spiral blade is fixed to the top of the fixing rod outside the inner spiral blade. An annular tube is provided below the vessel body, and multiple nozzles are fixed inside the vessel body. The bottom of the nozzles is fixedly connected to the annular tube.

[0007] A connecting pipe is fixed to the outer wall of the annular pipe, and a valve is fixed to the other end of the connecting pipe. An air inlet pipe and a water inlet pipe are fixed to the front and rear ends of the valve, respectively.

[0008] Preferably, a feed pipe is fixed to the top of the vessel.

[0009] Preferably, a discharge pipe is fixed to the bottom of the vessel, and a solenoid valve is fixed to the outer wall of the discharge pipe.

[0010] Preferably, the bottom of the vessel is fixed with multiple support legs.

[0011] Preferably, the stirring rod is in contact with the inner wall of the vessel.

[0012] Preferably, the motor is a variable frequency speed control motor.

[0013] Beneficial effects

[0014] This invention provides a phosphorus-containing biopolyol reactor. Compared with the prior art, it has the following advantages:

[0015] This phosphorus-containing biopolyol reactor is equipped with a fixed rod, inner spiral blades, outer spiral blades, a nozzle, annular pipe, connecting pipe, valve, gas pipe, and water pipe. When the rotating rod drives the stirring rod, it also drives the spiral blades to rotate. The rotation of the spiral blades causes the reactants below to move upwards through the inclined surface and then fall down, improving the stirring efficiency. The gas pipe and water pipe are connected to a nitrogen tank and a water pump. During stirring, nitrogen gas is introduced into the connecting pipe and annular pipe through the valve, and then enters the interior of the reactor body through the nozzle. It forms a cluster of bubbles in the reactants, generating forced convection, which further significantly improves the uniformity of material mixing. After the reaction is complete, the reactants are discharged, and the water pump is started. Cleaning water is introduced into the reactor body through the valve to clean the reactor body. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the vessel body in this utility model;

[0018] Figure 3 This is a bottom view of the inner spiral blade, outer spiral blade, and fixing rod in this utility model.

[0019] In the diagram: 1. Solenoid valve; 2. Discharge pipe; 3. Support leg; 4. Air inlet pipe; 5. Water inlet pipe; 6. Valve; 7. Connecting pipe; 8. Annular pipe; 9. Kettle body; 10. Feed pipe; 11. Motor; 12. Nozzle; 13. Inner spiral blade; 14. Outer spiral blade; 15. Stirring rod; 16. Rotating rod; 17. Fixing rod. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3This utility model provides a technical solution: a phosphorus-containing biopolyol reactor, including a reactor body 9. A stirring motor 11 is fixed to the top of the reactor body 9. The output shaft of the stirring motor 11 passes through the reactor body 9 and is fixed to a rotating rod 16. A stirring rod 15 is fixed to the bottom end of the rotating rod 16. Multiple fixing rods 17 are fixed to the outer side wall of the rotating rod 16. An inner spiral blade 13 is fixed to the top of the fixing rod 17. An outer spiral blade 14 is fixed to the top of the fixing rod 17 outside the inner spiral blade 13. An annular pipe 8 is provided below the reactor body 9. Multiple nozzles 12 are fixed inside the reactor body 9. The bottom of the nozzles 12 is fixedly connected to the annular pipe 8. A connecting pipe 7 is fixed to the outer side wall of the annular pipe 8. A valve 6 is fixed to the other end of the connecting pipe 7. An air inlet pipe 4 and a water inlet pipe 5 are fixed to the front and rear ends of the valve 6, respectively. This can speed up the stirring efficiency and increase the reaction speed.

[0022] Furthermore, a feed pipe 10 is fixed to the top of the vessel body 9, allowing the reactants to enter the vessel body 9. A discharge pipe 2 is fixed to the bottom of the vessel body 9, and a solenoid valve 1 is fixed to the outer wall of the discharge pipe 2, allowing the reactants to be discharged from the vessel body 9. Multiple support legs 3 are fixed to the bottom of the vessel body 9, which can raise the height of the device. The stirring rod 15 is in contact with the inner wall of the vessel body 9, so that while stirring, the residue on the inner wall of the vessel body 9 can be scraped off. The motor 11 is a variable frequency speed control motor, which allows the speed to be flexibly adjusted according to the reaction stage, such as the initial low viscosity, the middle viscosity increase, and the later high viscosity, to optimize the mixing efficiency and save energy.

[0023] During operation, motor 11 is started, which drives rotating rod 16 to rotate. Rotating rod 16 drives stirring rod 15 to rotate, and stirring rod 15 stirs the reactants. When rotating rod 16 drives stirring rod 15, it also drives spiral blades to rotate. The rotation of spiral blades causes the reactants below to move upward through the inclined surface and then fall down, increasing the stirring efficiency. At the same time, air inlet pipe 4 and water inlet pipe 5 are connected to nitrogen tank and water pump. During stirring, nitrogen gas is introduced into connecting pipe 7 and annular pipe 8 through valve 6, and then enters the interior of vessel 9 through nozzle 12, forming bubble clusters in the reactants and generating forced convection, which significantly improves the uniformity of material mixing and mass transfer efficiency. After the reaction is complete, solenoid valve 1 is opened to discharge the reactants. Water pump is started, and cleaning water is introduced into vessel 9 through valve 6 to clean vessel 9.

[0024] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A phosphorus-containing biopolyol reactor, comprising a reactor body (9), characterized in that: A stirring motor (11) is fixed to the top of the vessel body (9). The output shaft of the stirring motor (11) passes through the vessel body (9) and a rotating rod (16) is fixed thereto. A stirring rod (15) is fixed to the bottom end of the rotating rod (16). Multiple fixing rods (17) are fixed to the outer side wall of the rotating rod (16). An inner spiral blade (13) is fixed to the top of the fixing rod (17), and an outer spiral blade (14) is fixed to the top of the fixing rod (17) outside the inner spiral blade (13). An annular tube (8) is provided below the vessel body (9), and multiple nozzles (12) are fixed inside the vessel body (9). The bottom of the nozzle (12) is fixedly connected to the annular tube (8). A connecting pipe (7) is fixed to the outer wall of the annular pipe (8), and a valve (6) is fixed to the other end of the connecting pipe (7). An air inlet pipe (4) and a water inlet pipe (5) are fixed to the front and rear ends of the valve (6), respectively.

2. The phosphorus-containing biopolyol reactor according to claim 1, characterized in that: The top of the vessel body (9) is fixed with a feed pipe (10).

3. The phosphorus-containing biopolyol reactor according to claim 1, characterized in that: The bottom of the vessel body (9) is fixed with a discharge pipe (2), and an electromagnetic valve (1) is fixed on the outer wall of the discharge pipe (2).

4. The phosphorus-containing biopolyol reactor according to claim 1, characterized in that: The bottom of the vessel body (9) is fixed with multiple support legs (3).

5. The phosphorus-containing biopolyol reactor according to claim 1, characterized in that: The stirring rod (15) is in contact with the inner wall of the vessel body (9).

6. The phosphorus-containing biopolyol reactor according to claim 1, characterized in that: The motor (11) is a variable frequency speed control motor.

Images