Polyether polyol emulsification apparatus

Abstract

This utility model discloses a polyether polyol emulsification device, belonging to the field of chemical equipment technology. It includes a base, an emulsification tank on top of the base, a stirring mechanism on the emulsification tank, a circulation mechanism on the side of the emulsification tank, a discharge mechanism on the side of the emulsification tank, a surrounding enclosure on top of the base, a control system on the side of the surrounding enclosure, a feeding mechanism on the side of the emulsification tank, and an emulsion outlet on the side of the surrounding enclosure. The stirring mechanism includes a stirring motor, a reducer, a magnetic drive, a stirring shaft, upper stirring blades, and lower stirring blades. The magnetic drive is located at the top of the emulsification tank. In this utility model, the double-layer propeller blade design of the emulsification tank creates a strong up-and-down circulation flow of materials within the emulsification tank, resulting in more thorough mixing. The multi-stage premixing structure of the circulation mechanism further improves the particle size uniformity and stability of the emulsion, leading to excellent emulsification effect.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and more specifically, to polyether polyol emulsification equipment. Background Technology

[0002] Polyether polyols are important chemical raw materials, widely used in the synthesis of polyurethanes, polyesters, and other polymer materials. In practical applications, it is often necessary to prepare polyether polyols into emulsion form to meet specific process requirements and application needs. However, existing polyether polyol emulsification equipment has the following shortcomings:

[0003] 1. Unsatisfactory emulsification effect: The emulsification structure design of traditional equipment is not reasonable enough, which leads to insufficient mixing and dispersion of polyether polyols and additives such as emulsifiers. The particle size distribution of the emulsion is uneven and the stability is poor, which affects the quality of subsequent products.

[0004] 2. Low production efficiency: During the emulsification process, the material conveying, mixing and dispersing are independent of each other and lack effective synergy, which makes the whole emulsification process take a long time and has low production efficiency.

[0005] 3. Difficult to clean and maintain: The internal structure of the equipment is complex, and some key components are prone to material residue during the emulsification process. Difficult cleaning leads to a shortened service life of the equipment and affects product quality.

[0006] Therefore, it is necessary to develop a new type of polyether polyol emulsification equipment to solve the problems existing in the current technology, improve the emulsification effect and production efficiency, and meet the needs of industrial production. Utility Model Content

[0007] In view of the problems mentioned in the background art above, the purpose of this utility model is to provide a polyether polyol emulsification device.

[0008] To solve the above problems, the present invention adopts the following technical solution:

[0009] A polyether polyol emulsification device includes a base, an emulsification tank on top of the base, a stirring mechanism on the emulsification tank, a circulation mechanism on the side of the emulsification tank, a discharge mechanism on the side of the emulsification tank, a surrounding enclosure on top of the base, a control system on the side of the surrounding enclosure, a feeding mechanism on the side of the emulsification tank, and an emulsion outlet on the side of the surrounding enclosure. The stirring mechanism includes a stirring motor, a reducer, a magnetic drive, a stirring shaft, upper stirring blades, and lower stirring blades. The magnetic drive is located on top of the emulsification tank, and the reducer is mounted on the magnetic drive. The output shaft of the stirring motor and the input end of the reducer are connected by a coupling. The output shaft of the reducer extends into the inner cavity of the emulsification tank and is connected to the top of the stirring shaft by a coupling. The upper and lower stirring blades are located on the outer side of the stirring shaft.

[0010] As a preferred embodiment of the present invention, the circulation mechanism includes a first circulation pump, a mixing block, a static premix, a tubular heat exchanger, and a first circulation pipe. The input end of the first circulation pump and the bottom outlet of the emulsifying tank are connected through the first circulation pipe, and the output end of the first circulation pump is connected to the top inlet of the emulsifying tank through the first circulation pipe. The mixing block and the static premix are located on the first circulation pipe.

[0011] As a preferred embodiment of the present invention, the discharge mechanism includes a second circulation pump, a sampling hand valve, and a second circulation pipeline. The input end of the second circulation pump and the bottom outlet of the emulsion tank are connected through the second circulation pipeline, and the output end of the second circulation pump is connected to the emulsion outlet through the second circulation pipeline. The sampling hand valve is located on the second circulation pipeline.

[0012] As a preferred embodiment of this utility model, the feeding mechanism includes a polyether polyol feeding pipe, an emulsifier feeding pipe, and an additive feeding pipe. The polyether polyol feeding pipe is connected to the inlet of the emulsification tank, and the emulsifier feeding pipe and the additive feeding pipe are respectively connected to the polyether polyol feeding pipe through metering pumps.

[0013] As a preferred embodiment of this utility model, the emulsifying tank is a cylindrical tank with a jacket, the inner wall of the emulsifying tank is provided with spiral turbulence ribs, the top of the emulsifying tank is provided with a float level gauge, a safety valve, an air inlet and an air outlet, the bottom of the emulsifying tank is provided with a discharge port and a discharge outlet, and the side of the emulsifying tank is provided with a feed inlet.

[0014] As a preferred embodiment of this utility model, the bottom of the base is fixedly equipped with multiple self-locking casters.

[0015] The advantages of this utility model are:

[0016] (1) In this utility model, the double-layer propeller blade design of the emulsifying tank makes the material form a strong up-and-down circulation flow in the emulsifying tank, and the material is mixed more fully. The multi-stage premixing structure of the circulation mechanism further improves the particle size uniformity and stability of the emulsion, and the emulsification effect is good.

[0017] (2) In this utility model, the metering pump of the feeding mechanism can accurately control the amount of emulsifier and additive added, ensuring the stability and consistency of the emulsification reaction. The circulation mechanism enables the emulsion to circulate and emulsify continuously in the emulsification tank, eliminating the need for frequent start-up and shutdown of the equipment, greatly shortening the emulsification time and improving production efficiency.

[0018] (3) In this utility model, the inner wall of the emulsifying tank is provided with spiral turbulence ribs, which are easy to clean and rinse. The components of the equipment adopt a modular design, which is easy to disassemble and facilitates daily maintenance and repair. Attached Figure Description

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

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

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

[0022] Figure 4 This is a schematic diagram of the emulsification tank of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the first circulating pump of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the second circulating pump of this utility model;

[0025] Figure 7 This is a schematic diagram of the stirring mechanism of this utility model.

[0026] Explanation of the labels in the diagram:

[0027] 1. Base; 2. Emulsifying tank; 3. Stirring mechanism; 31. Stirring motor; 32. Reducer; 33. Magnetic drive; 34. Stirring shaft; 35. Upper stirring blade; 36. Bottom stirring blade; 4. Circulation mechanism; 41. First circulation pump; 42. Mixing block; 43. Static premixing; 44. Tubular heat exchanger; 45. First circulation pipe; 5. Discharge mechanism; 51. Second circulation pump; 52. Sampling valve; 53. Second circulation pipe; 6. Enclosure; 7. Control system; 8. Self-locking casters; 9. Feeding mechanism; 91. Polyether polyol feed pipe; 92. Emulsifier feed pipe; 93. Additive feed pipe; 10. Emulsion outlet. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, 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 scope of protection of the present utility model.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0031] Example 1:

[0032] Please see Figure 1-7 The polyether polyol emulsification equipment includes a base 1, an emulsification tank 2 on the top of the base 1, a stirring mechanism 3 on the emulsification tank 2, a circulation mechanism 4 on the side of the emulsification tank 2, a discharge mechanism 5 on the side of the emulsification tank 2, a surrounding enclosure 6 on the top of the base 1, a control system 7 on the side of the surrounding enclosure 6, a feeding mechanism 9 on the side of the emulsification tank 2, and an emulsion outlet 10 on the side of the surrounding enclosure 6. The stirring mechanism 3 includes a stirring motor 31, a reducer 32, a magnetic drive 33, a stirring shaft 34, an upper stirring blade 35, and a lower stirring blade 36. The magnetic drive 33 is located on the top of the emulsification tank 2, and the reducer 32 is located on the magnetic drive 33. The output shaft of the stirring motor 31 and the input end of the reducer 32 are connected by a coupling. The output shaft of the reducer 32 extends into the inner cavity of the emulsification tank 2 and is connected to the top of the stirring shaft 34 by a coupling. The upper stirring blade 35 and the lower stirring blade 36 are located on the outside of the stirring shaft 34.

[0033] In this embodiment, the upper stirring blade 35 and the lower stirring blade 36 are in the shape of a double-layer spiral structure. The outer spiral blade is used to push the material downward, and the inner spiral blade is used to push the material upward, thereby forming a strong circulating flow, so that the material is fully mixed in the emulsification tank 2. At the same time, the stirring motor 31 has an adjustable speed, which can be set according to the different viscosities and liquid levels of the polyether polyol. The control system 7 uses a Siemens 1200 PLC, which has powerful performance, high integration, and integrated PROFINET / Ethernet communication interface. It can transmit data to the customer's data acquisition system, and has flexible expansion, high cost performance and low maintenance cost.

[0034] For details, please refer to Figure 3 and Figure 5 The circulation mechanism 4 includes a first circulation pump 41, a mixing block 42, a static premix 43, a tubular heat exchanger 44, and a first circulation pipe 45. The input end of the first circulation pump 41 and the bottom outlet of the emulsifying tank 2 are connected through the first circulation pipe 45. The output end of the first circulation pump 41 is connected to the top inlet of the emulsifying tank 2 through the first circulation pipe 45. The mixing block 42 and the static premix 43 are located on the first circulation pipe 45.

[0035] In this embodiment, the mixing block 42 can adjust the counter-current effect with different pressures, and the circulation mechanism 4 can make the emulsion continuously circulate in the emulsion tank 2, ensuring the uniformity and stability of the emulsification process.

[0036] For details, please refer to Figure 3 and Figure 6 The discharge mechanism 5 includes a second circulation pump 51, a sampling hand valve 52, and a second circulation pipe 53. The input end of the second circulation pump 51 and the bottom outlet of the emulsion tank 2 are connected through the second circulation pipe 53. The output end of the second circulation pump 51 is connected to the emulsion outlet 10 through the second circulation pipe 53. The sampling hand valve 52 is located on the second circulation pipe 53.

[0037] In this embodiment, the emulsification of the raw materials is checked at the sampling port of the sampling valve 52. After the emulsification is qualified, the raw materials in the emulsion tank 2 can be discharged from the emulsion outlet 10 and stored in an external storage tank.

[0038] For details, please refer to Figure 2 and Figure 4 The feeding mechanism 9 includes a polyether polyol feed pipe 91, an emulsifier feed pipe 92, and an additive feed pipe 93. The polyether polyol feed pipe 91 is connected to the inlet of the emulsification tank 2. The emulsifier feed pipe 92 and the additive feed pipe 93 are respectively connected to the polyether polyol feed pipe 91 through metering pumps.

[0039] In this embodiment, a metering pump can be used to precisely control the amount of emulsifier and additives added.

[0040] For details, please refer to Figure 3 Emulsifying tank 2 is a cylindrical tank with a jacket. The inner wall of emulsifying tank 2 is provided with spiral turbulence ribs. The top of emulsifying tank 2 is provided with a float level gauge, a safety valve, an air inlet and an air outlet. The bottom of emulsifying tank 2 is provided with a discharge port and a discharge outlet. The side of emulsifying tank 2 is provided with a feed inlet.

[0041] In this embodiment, a heating medium or a cooling medium can be introduced into the jacket of the emulsifying tank 2, and a tubular heat exchanger is provided to control the temperature during the emulsification process.

[0042] For details, please refer to Figure 1 The bottom of the base 1 is fixedly equipped with multiple self-locking casters 8.

[0043] In this embodiment, the device is supported by self-locking casters 8, which also ensures that the device can be moved.

[0044] Working Principle: In use, first install the emulsifying tank 2, stirring mechanism 3, circulation mechanism 4, discharge mechanism 5, enclosure 6, control system 7, self-locking casters 8, and feeding mechanism 9 onto the base 1, ensuring that all components are securely connected and well-sealed. After assembly, debug the equipment and check whether each system is operating normally. Then, according to the production process requirements, set the emulsifier and additive ratios. Slowly add the polyether polyol into the emulsifying tank 2 through the polyether polyol inlet pipe 91. Add the emulsifier and additives into the emulsifying tank 2 according to the predetermined ratio through the emulsifier inlet pipe 92 and the emulsifier feed pipe 92. Start the stirring mechanism 3 and circulation mechanism 4. The stirring motor 31 of the stirring mechanism 3 drives the upper stirring blade 35 and the bottom stirring blade 36 to rotate, causing the polyether polyol, emulsifier, and additives to emulsify. The emulsion is thoroughly mixed in tank 2, while the mixing block 42 and static premix 43 of the circulation mechanism 4 send the emulsion into the homogenizing head for homogenization to obtain a uniform and stable emulsion. Then, when the emulsion reaches the predetermined emulsification effect, the emulsion is slowly discharged from the emulsion outlet 10 through the discharge mechanism 5 and collected into the storage container, which is the finished emulsion. Finally, all systems of the equipment are shut down, and the remaining emulsion in the emulsification tank 2 is drained. The emulsification tank 2, the upper stirring blade 35, the bottom stirring blade 36, the mixing block 42, the static premix 43, the tubular heat exchanger 44, etc. are cleaned with a suitable cleaning solution. During the cleaning process, the cleaning solution can be circulated inside the equipment through the circulation mechanism 4 to ensure the cleaning effect. After cleaning, the cleaning solution is drained, the equipment is rinsed with DOP, and then dried for use.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A polyether polyol emulsification device, comprising a base (1), characterized in that: An emulsifying tank (2) is provided on the top of the base (1). A stirring mechanism (3) is provided on the emulsifying tank (2). A circulation mechanism (4) is provided on the side of the emulsifying tank (2). A discharge mechanism (5) is provided on the side of the emulsifying tank (2). A housing (6) is provided on the top of the base (1). A control system (7) is provided on the side of the housing (6). A feeding mechanism (9) is provided on the side of the emulsifying tank (2). An emulsion outlet (10) is provided on the side of the housing (6). The stirring mechanism (3) includes a stirring motor (31) and a reducer (3). 2) Magnetic drive (33), stirring shaft (34), upper stirring blade (35) and lower stirring blade (36), the magnetic drive (33) is set on the top of the emulsification tank (2), the reducer (32) is set on the magnetic drive (33), the output shaft of the stirring motor (31) and the input end of the reducer (32) are connected by a coupling, the output shaft of the reducer (32) extends to the inner cavity of the emulsification tank (2) and is connected to the top of the stirring shaft (34) by a coupling, the upper stirring blade (35) and the lower stirring blade (36) are set on the outside of the stirring shaft (34).

2. The polyether polyol emulsification equipment according to claim 1, characterized in that: The circulation mechanism (4) includes a first circulation pump (41), a mixing block (42), a static premix (43), a tubular heat exchanger (44), and a first circulation pipe (45). The input end of the first circulation pump (41) and the bottom outlet of the emulsifying tank (2) are connected through the first circulation pipe (45). The output end of the first circulation pump (41) is connected to the top inlet of the emulsifying tank (2) through the first circulation pipe (45). The mixing block (42) and the static premix (43) are located on the first circulation pipe (45).

3. The polyether polyol emulsification equipment according to claim 1, characterized in that: The discharge mechanism (5) includes a second circulation pump (51), a sampling hand valve (52), and a second circulation pipe (53). The input end of the second circulation pump (51) and the bottom outlet of the emulsion tank (2) are connected through the second circulation pipe (53). The output end of the second circulation pump (51) is connected to the emulsion outlet (10) through the second circulation pipe (53). The sampling hand valve (52) is located on the second circulation pipe (53).

4. The polyether polyol emulsification equipment according to claim 1, characterized in that: The feeding mechanism (9) includes a polyether polyol feed pipe (91), an emulsifier feed pipe (92), and an additive feed pipe (93). The polyether polyol feed pipe (91) is connected to the inlet of the emulsification tank (2). The emulsifier feed pipe (92) and the additive feed pipe (93) are respectively connected to the polyether polyol feed pipe (91) through metering pumps.

5. The polyether polyol emulsification equipment according to claim 1, characterized in that: The emulsifying tank (2) is a cylindrical tank with a jacket. The inner wall of the emulsifying tank (2) is provided with spiral turbulence ribs. The top of the emulsifying tank (2) is provided with a float level gauge, a safety valve, an air inlet and an air outlet. The bottom of the emulsifying tank (2) is provided with a discharge port and a discharge outlet. The side of the emulsifying tank (2) is provided with a feed inlet.

6. The polyether polyol emulsification equipment according to claim 1, characterized in that: The bottom of the base (1) is fixedly equipped with multiple self-locking casters (8).

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