Polymerization reaction equipment for preparing high-comfort slow-rebound polyether polyol
By combining forward and reverse stirring with liquid circulation pumping in the preparation equipment, the problems of insufficient stirring and slow reaction rate in existing equipment have been solved, and efficient preparation of polyether polyols has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-17
AI Technical Summary
Existing polyether polyol preparation equipment has shortcomings in terms of stirring replenishment and reaction speed, resulting in low preparation efficiency.
A polymerization reaction device was designed, comprising a first motor, a stirring shaft, a second motor, a turntable, crossbars, a stirring plate, a liquid extraction pipe, a liquid extraction pump, and a controller. By combining forward and reverse stirring with liquid circulation pumping, the device achieves thorough stirring of the liquid inside the reaction tank and accelerates the reaction.
By combining forward and reverse stirring with liquid circulation pumping, the stirring efficiency and reaction rate of polyether polyols are significantly improved, thus enhancing the preparation efficiency.
Smart Images
Figure CN224127296U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyether polyol preparation technology, specifically a polymerization reaction device for preparing high-comfort, slow-rebound polyether polyols. Background Technology
[0002] Polyether polyols (polyethers for short) are organic polymers produced by addition polymerization of initiators (compounds containing active hydrogen groups) with ethylene oxide (EO), propylene oxide (PO), butylene oxide (BO), etc., in the presence of a catalyst. The largest production volume of polyethers is achieved using glycerol (glycerol) as an initiator and epoxides (usually PO and EO used together). By changing the feeding method of PO and EO (mixed or separate addition), the feeding ratio, and the order of addition, various general-purpose polyether polyols can be produced.
[0003] Currently, existing polymerization equipment for preparing polyether polyols suffers from issues such as the need for stirring and replenishment, and slow reaction rates.
[0004] Therefore, a polymerization reaction apparatus for the preparation of high-comfort, slow-rebound polyether polyols is needed to improve the above-mentioned problems. Utility Model Content
[0005] The purpose of this invention is to provide a polymerization reaction apparatus for the preparation of high-comfort, slow-rebound polyether polyols, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A polymerization reaction apparatus for preparing high-comfort, slow-rebound polyether polyols includes a reaction vessel. The reaction vessel has a lid on top, a frame at the center of the lid, a first motor mounted on top of the frame, a stirring shaft at the lower end of the first motor, a feed inlet on the right side of the lid, support legs evenly distributed along the bottom edge of the reaction vessel, a second motor mounted at the center of the bottom of the reaction vessel, a turntable on top of the second motor, horizontal strips evenly distributed on the outer side of the turntable, a stirring plate on top of the horizontal strips, a discharge pipe on the front side of the bottom of the reaction vessel, and suction pipes on the left and right sides of the reaction vessel. A suction pump is mounted at the outer end of each suction pipe, a delivery pipe is located above the suction pump, and a controller is mounted on the front of the reaction vessel.
[0008] As a preferred embodiment of this utility model, the stirring shaft passes through the tank cover and extends into the interior of the reaction vessel, and the connection between the stirring shaft and the tank cover is a rotatable connection.
[0009] As a preferred embodiment of this utility model, the turntable is located inside the reaction vessel, and the turntable is connected to the reaction vessel by a rotatable connection.
[0010] As a preferred embodiment of this utility model, the liquid extraction pipe has an L-shaped structure, and the upper end of the liquid extraction pipe is connected to the reaction vessel in a through manner.
[0011] As a preferred embodiment of this utility model, the controller is connected to the first motor, the second motor, and the liquid pump via wires, and the connection method is electrical connection.
[0012] As a preferred embodiment of this utility model, a valve is installed on the discharge pipe.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, the first motor and stirring shaft can perform forward stirring of the liquid inside the reaction tank, and the second motor, turntable, crossbar, and stirring plate can perform reverse stirring of the liquid inside the reaction tank. The liquid extraction pipe, liquid extraction pump, and liquid delivery pipeline can circulate and pump the liquid inside the reaction tank. In summary, through forward and reverse stirring, plus liquid circulation and pumping, the polyether polyol can be stirred more thoroughly and the reaction speed can be faster during preparation. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall appearance and structure of the present utility model;
[0016] Figure 2 This is a schematic diagram of the can lid structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the second motor, turntable, crossbar, and stirring plate of this utility model.
[0018] In the diagram: 1. Reaction vessel; 2. Vessel cover; 3. Frame; 4. First motor; 5. Stirring shaft; 6. Feed inlet; 7. Support leg; 8. Second motor; 9. Turntable; 10. Horizontal support bar; 11. Stirring plate; 12. Discharge pipe; 13. Liquid extraction pipe; 14. Liquid extraction pump; 15. Liquid delivery pipeline; 16. Controller. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.
[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0023] For examples, please refer to Figure 1-3 This utility model provides a technical solution:
[0024] A polymerization reaction apparatus for preparing high-comfort, slow-rebound polyether polyols includes a reaction vessel 1, a vessel cover 2 on the top of the reaction vessel 1, a frame 3 at the middle of the top of the vessel cover 2, a first motor 4 mounted on the top of the frame 3, a stirring shaft 5 mounted on the lower end of the first motor 4, a feed inlet 6 on the right side of the top of the vessel cover 2, support legs 7 evenly arranged at the bottom edge of the reaction vessel 1, a second motor 8 mounted at the middle of the bottom of the reaction vessel 1, a turntable 9 mounted on the top of the second motor 8, horizontal support bars 10 evenly arranged on the outer side of the turntable 9, a stirring plate 11 mounted on the top of the horizontal support bars 10, a discharge pipe 12 on the front side of the bottom of the reaction vessel 1, liquid extraction pipes 13 on the left and right sides of the reaction vessel 1, a liquid extraction pump 14 mounted on the outer end of the liquid extraction pipe 13, a liquid delivery pipe 15 mounted on the upper side of the liquid extraction pump 14, and a controller 16 mounted on the front of the reaction vessel 1.
[0025] In this embodiment, the stirring shaft 5 passes through the tank cover 2 and extends into the interior of the reaction tank 1. The stirring shaft 5 is rotatably connected to the tank cover 2. The turntable 9 is located inside the reaction tank 1 and is rotatably connected to the reaction tank 1. The liquid extraction pipe 13 has an L-shaped structure, and its upper end is connected to the reaction tank 1. The controller 16 is electrically connected to the first motor 4, the second motor 8, and the liquid extraction pump 14 via wires. A valve is installed on the discharge pipe 12. The first motor 4 and the stirring shaft 5 can perform forward stirring of the liquid inside the reaction tank 1. The second motor 8, the turntable 9, the crossbar 10, and the stirring plate 11 can perform reverse stirring of the liquid inside the reaction tank 1. The liquid extraction pipe 13, the liquid extraction pump 14, and the liquid delivery pipe 15 can circulate and pump the liquid inside the reaction tank 1.
[0026] The working process of this utility model is as follows: First, the reaction liquid and raw materials are added into the reaction tank 1 through the feeding port 6. Then, the first motor 4 is started to drive the stirring shaft 5 to stir the reaction liquid in the forward direction. Next, the second motor 8 is started to drive the turntable 9, the crossbar 10, and the stirring plate 11 to stir the reaction liquid in the reverse direction. Then, the liquid pump 14 is started to pump the reaction liquid from the bottom of the reaction tank 1 to the top of the reaction tank 1. After the polyether polyol is prepared, the valve is opened to discharge the polyether polyol from the discharge pipe 12. The first motor 4 and the stirring shaft 5 can stir the liquid inside the reaction tank 1 in the forward direction, and the second motor 8, the turntable 9, the crossbar 10, and the stirring plate 11 can stir the liquid inside the reaction tank 1 in the reverse direction. The liquid pump 14 and the liquid delivery pipe 15 can circulate and pump the liquid inside the reaction tank 1. In summary, the design allows for more thorough stirring and faster reaction speed of polyether polyol during preparation by using forward and reverse stirring combined with liquid circulation and pumping.
[0027] 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 polymerization reactor apparatus for the production of high comfort slow-rebound polyether polyols comprising a reactor vessel (1), characterized in that: The reaction vessel (1) is provided with a lid (2) on top. A frame (3) is provided in the middle of the top of the lid (2). A first motor (4) is installed on the top of the frame (3). A stirring shaft (5) is installed at the lower end of the first motor (4). A feed inlet (6) is provided on the right side of the top of the lid (2). Support legs (7) are evenly arranged at the bottom edge of the reaction vessel (1). A second motor (8) is installed in the middle of the bottom of the reaction vessel (1). A top of the second motor (8) is provided with a support. A turntable (9) is provided, and horizontal bars (10) are evenly arranged on the outer side of the turntable (9). A stirring plate (11) is provided on the top of the horizontal bars (10). A discharge pipe (12) is provided on the front side of the bottom of the reaction tank (1). A liquid extraction pipe (13) is provided on the left and right sides of the reaction tank (1). A liquid extraction pump (14) is installed at the outer end of the liquid extraction pipe (13). A liquid delivery pipe (15) is provided on the upper side of the liquid extraction pump (14). A controller (16) is installed on the front of the reaction tank (1).
2. A polymerization reaction apparatus for the production of high comfort slow-rebound polyether polyols according to claim 1, characterized in that: The stirring shaft (5) passes through the tank cover (2) and extends into the interior of the reaction vessel (1), and the stirring shaft (5) is connected to the tank cover (2) by a rotatable connection.
3. The polymerization reaction equipment for preparing high-comfort, slow-rebound polyether polyols according to claim 1, characterized in that: The turntable (9) is located inside the reaction vessel (1), and the turntable (9) is connected to the reaction vessel (1) by rotation.
4. A polymerization reaction apparatus for the production of high comfort slow-rebound polyether polyols according to claim 1, characterized in that: The liquid extraction pipe (13) has an L-shaped structure, and the upper end of the liquid extraction pipe (13) is connected to the reaction vessel (1) in a through-hole manner.
5. A polymerization reaction apparatus for the production of high comfort slow-rebound polyether polyols according to claim 1, characterized in that: The controller (16) is connected to the first motor (4), the second motor (8), and the liquid pump (14) via wires, and the connection is electrical.
6. The polymerization reaction equipment for preparing high-comfort, slow-rebound polyether polyols according to claim 1, characterized in that: A valve is installed on the discharge pipe (12).