Online emulsification phase inversion pump for waterborne polyurethane

Abstract

The utility model discloses an online emulsification phase inversion pump for waterborne polyurethane, and relates to the technical field of raw material processing, the online emulsification phase inversion pump comprises a pump body shell B, the peripheral surface of a driving shaft is fixedly sleeved with a rotor A mounted at a stirring bin B, and a sleeve disc A matched with the bottom of a stator B is fixedly arranged at the position, below the rotor A, of the peripheral surface of the driving shaft; a plurality of cutting columns A matched at the stirring bin C are annularly and fixedly installed at the top of the sleeve disc A at equal intervals, a sleeve disc B matched at the bottom of the stator B is fixedly arranged at the position, located above the sleeve disc A, of the peripheral surface of the driving shaft, and a plurality of cutting columns B matched at the stirring bin C are annularly and fixedly installed at the top of the sleeve disc B at equal intervals. The rotor A, the rotor B, the cutting column A and the cutting column B are driven by the driving shaft to rotate, and in the process that a solution flows through different stirring bins A, B, C and D, the solution is stirred, cut, shunted and scattered for multiple times, so that the solution can be more quickly and fully mixed together.

Description

TECHNICAL FIELD

[0001] The application relates to the raw material processing technical field, in particular to an online emulsification phase inversion pump for water-based polyurethane. BACKGROUND

[0002] The water-based polyurethane is an important polymer material, the water-based polyurethane is a polymer system containing a polyurethane group and taking water as a main dispersion medium, and the water-based polyurethane is formed by introducing a hydrophilic group into a polyurethane molecular chain so that the originally water-insoluble polyurethane can be dispersed in water to form an emulsion or a dispersion.

[0003] In addition, the existing patent with the patent number CN212119612U discloses a rotating stator assembly and a multiphase self-suction homogeneous emulsification pump applying the same, and the above patent has the following problems in the actual use process.

[0004] The above patent drives the internal rotation by a driving motor, so as to drive the internal inner plate and the outer impeller to rotate at a high speed, thereby stirring the mixed solution entering the pump shell, but when the amount of the entering solution increases, the flow state of the material is not ideal, the outer impeller can only stir the solution and cannot cut and disperse the solution, so that effective convection and diffusion cannot be formed, and the mixing effect is poor, and therefore the application provides an online emulsification phase inversion pump for water-based polyurethane. Content of the utility model

[0005] In order to improve the problem of poor mixing effect, the application provides an online emulsification phase inversion pump for water-based polyurethane.

[0006] The online emulsification phase inversion pump for water-based polyurethane provided by the application adopts the following technical scheme:

[0007] The utility model provides an online emulsification phase transfer pump for waterborne polyurethane, including pump body shell B, the driving shaft is driven through in pump body shell B, the inside of pump body shell B is equipped with the limiting groove B, the inside of pump body shell B is fixedly installed with the stator B of driving shaft activity penetration at limiting groove B place, the top of stator B is equipped with the stirring bin B in the middle, the outer circumferential surface of stirring bin B is equipped with a plurality of rectangular holes B annularly and equidistantly, the bottom of stator B is equipped with stirring bin C below stirring bin B's outer circle, the outer circumferential surface of stirring bin C is equipped with a plurality of rectangular holes C annularly and equidistantly, the bottom of stator B is equipped with stirring bin D at stirring bin C's outer circumferential surface, the outer circumferential surface of stirring bin D is equipped with a plurality of rectangular holes D annularly and equidistantly, the outer circumferential surface of driving shaft is fixedly sleeved with rotor A installed at stirring bin B place, the outer circumferential surface of driving shaft is fixedly provided with sleeve disc A below rotor A and is matched in the bottom of stator B, the top of sleeve disc A is fixedly installed with a plurality of cutting columns A matched at stirring bin C place annularly and equidistantly, the outer circumferential surface of driving shaft is fixedly provided with sleeve disc B above sleeve disc A and is matched in the bottom of stator B, the top of sleeve disc B is fixedly installed with a plurality of cutting columns B matched at stirring bin C place annularly and equidistantly.

[0008] By adopting the above technical scheme, the materials in different areas can be stirred by the rotation of the rotor A in the stirring bin B, the rotation of the cutting column A in the stirring bin C and the rotation of the cutting column B in the stirring bin D, the stirring range is expanded, and the material stirring is more sufficient.

[0009] Preferably, the inside of the pump body shell B is provided with a limiting groove A above the limiting groove B, the inside of the pump body shell B is fixedly installed with a stator A penetrating the driving shaft at the limiting groove A, the top of the stator A is provided with a stirring bin A in the middle, and the outer circumferential surface of the stirring bin A is provided with a plurality of rectangular holes A annularly and equidistantly.

[0010] By adopting the above technical scheme, the stirring components in the stirring bin A can stir and cut the solution entering the area during rotation, providing better conditions for further stirring and cutting in the stirring bin C and the stirring D.

[0011] Preferably, the outer circumferential surface of the driving shaft is fixedly sleeved with a rotor B installed at the stirring bin A above the rotor A, and the outer sides of the rotor B and the rotor A are both provided with through holes for cutting liquid.

[0012] By adopting the above technical scheme, the rotors B and A both have rectangular structures for cutting liquid, which can realize multi-stage cutting of liquid.

[0013] Preferably, the pump body shell B, the stator A and the stator B are all combined by two components with the same size.

[0014] By adopting the above technical solution and using a splicing and assembly method, it is easier to operate during installation compared to an integral structure.

[0015] Preferably, the end of the drive shaft is hemispherical, and the end of the drive shaft is rotatably connected to a main shaft pressure plate fixed on the top of the pump housing B. The bottom of the main shaft pressure plate is provided with an arc-shaped groove corresponding to the top hemispherical surface of the drive shaft.

[0016] By adopting the above technical solution, the hemispherical surface at the end of the drive shaft matches the arc groove at the bottom of the main shaft pressure plate. This ball-and-socket connection method makes the contact between the drive shaft and the main shaft pressure plate during rotation point contact or small area contact, which can significantly reduce friction.

[0017] Preferably, pump housing A is fixedly installed at the bottom of pump housing B, and a housing is fixedly installed at the bottom of pump housing A. A coupling is provided at the bottom end of the drive shaft, and a drive column that moves through the housing is fixedly connected to the drive shaft through the coupling.

[0018] By adopting the above technical solution, the drive shaft and drive column are connected by a coupling, which can effectively transmit power from the drive column to the drive shaft.

[0019] Preferably, a drive motor is fixedly installed on one side of the top of the housing, and pulleys are fixedly provided on the output shaft of the housing and the bottom of the drive column. A transmission belt is rotatably connected to the outer circumferential surface of the two pulleys.

[0020] By adopting the above technical solution, the drive motor transmits power to the drive column through pulleys and transmission belts. This belt drive method has a certain degree of elasticity and buffering, which can absorb the impact when the motor starts and stops to a certain extent, making the power transmission smoother.

[0021] Preferably, a connecting pipe is fixedly installed on the outer peripheral surface of the pump body shell B near both stator A and stator B, and an inlet / outlet pipe is fixedly installed on the outer peripheral surface of the bottom end of the pump body shell B.

[0022] By adopting the above technical solutions, the connecting pipes and inlet / outlet pipes can achieve multiple functions according to different production needs.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The drive shaft drives rotor A, rotor B, cutting column A and cutting column B to rotate. As the solution flows through different mixing chambers A, B, C and D, the solution is stirred and cut and dispersed multiple times. This compensates for the lack of liquid cutting and dispersion during the stirring process, thereby greatly improving the mixing effect and allowing the solution to mix together more quickly and thoroughly.

[0025] 2. Within each mixing chamber, due to the rotation of the rotor and the cutting column, the solution, driven by centrifugal force, flows from one mixing chamber through the corresponding rectangular hole to another. This cyclical process promotes the formation of a complex and orderly flow path, effectively compensating for the inability to form effective convection and diffusion. The solutions in different regions continuously exchange and mix with each other, greatly enhancing the overall convection and diffusion effect of the solution, thereby improving the mixing quality and ensuring that all components of the solution are uniformly mixed to achieve the ideal mixing state. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the application documents;

[0027] Figure 2 This is a cross-sectional structural diagram of the document in this application;

[0028] Figure 3 This is a schematic diagram of the structure of stator A and stator B in this application.

[0029] Figure 4 This is a schematic diagram of the structure of stator B in this application.

[0030] Figure 5 This is a top view of the stator A and stator B in this application.

[0031] Figure 6 This is a schematic diagram of the main shaft pressure plate of this application.

[0032] Reference numerals: 1. Drive motor; 2. Housing; 3. Pulley; 4. Drive belt; 5. Drive column; 6. Coupling; 7. Pump housing A; 8. Drive shaft;

[0033] 9. Rotor A; 10. Rotor B; 11. Sleeve A; 12. Cutting Column A; 13. Sleeve B; 14. Cutting Column B; 15. Pump Body Shell B; 1501. Limiting Groove A; 1502. Limiting Groove B; 16. Stator A; 1601. Mixing Chamber A; 1602. Rectangular Hole A;

[0034] 17. Stator B; 1701. Mixing chamber B; 1702. Rectangular hole B; 1703. Mixing chamber C; 1704. Rectangular hole C; 1705. Mixing chamber D; 1706. Rectangular hole D; 18. Main shaft pressure plate; 19. Connecting pipe; 20. Inlet and outlet pipes. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0036] The device's "up, down, left, right" perspectives are... Figure 1 The orientation of the attached diagram is the reference.

[0037] This application discloses an online emulsification phase-inversion pump for waterborne polyurethane.

[0038] Reference Figures 3-5 As shown, an online emulsification phase-inversion pump for waterborne polyurethane includes a pump housing B15, through which a drive shaft 8 is movably inserted. A limiting groove B1502 is formed near the center of the pump housing B15. A stator B17 is bolted and installed inside the pump housing B15 at the limiting groove B1502. The stator B17 is movably inserted through the drive shaft 8. The top of the stator B17 is arc-shaped, and a vertically downward stirring chamber B1701 is formed in the center of the top of the stator B17. The outer periphery of the stirring chamber B1701... Four rectangular holes B1702 are equidistantly spaced in an annular shape on the surface of the stator B17. A stirring chamber C1703 is located below the bottom of the stator B17. The stirring chamber C1703 is located on the outer ring of the stirring chamber B1701. Twelve rectangular holes C1704 are equidistantly spaced in an annular shape on the outer surface of the stirring chamber C1703. A stirring chamber D1705 is located at the bottom of the stator B17. The stirring chamber D1705 is located on the outer ring of the stirring chamber C1703. At least thirty-six rectangular holes D1706 are equidistantly spaced in an annular shape on the outer surface of the stirring chamber D1705.

[0039] The stator B17 is assembled from two parts, both of which are integrally cast. After the stator B17 is assembled, it is placed in the limiting groove B1502 inside the pump housing B15 and fixed with bolts. When the solution enters the stirring chamber B1701, it is agitated. Under the action of centrifugal force, it enters the stirring chamber C1703 through the rectangular hole B1702 and is agitated again. Under the action of centrifugal force, it enters the stirring chamber D1705 through the rectangular hole C1704 and is agitated again. Under the action of centrifugal force, it falls to the bottom of the pump housing B15 through the rectangular hole D1706. Through three stirring and cutting processes, the internal solution can be fully mixed, improving the mixing effect.

[0040] Reference Figure 3 , Figure 4As shown, a rotor A9 is fixedly sleeved on the outer circumferential surface of the drive shaft 8. The rotor A9 is installed at the mixing chamber B1701. A sleeve plate A11 is fixedly sleeved on the outer circumferential surface of the drive shaft 8 below the rotor A9. The sleeve plate A11 fits into the bottom of the stator B17. The diameter of the sleeve plate A11 is smaller than the diameter of the mixing chamber D1705. The sleeve plate A11 does not fit against the bottom of the stator B17. Four cutting columns A12 are fixedly installed equidistantly in a ring on the top of the sleeve plate A11. The cutting columns A12 fit into the mixing chamber D1705. The cutting column A12 does not fit against the inner surface of the mixing chamber D1705. The outer peripheral surface of the drive shaft 8 is fixedly fitted with a sleeve plate B13 above the sleeve plate A11. The sleeve plate B13 fits into the bottom of the stator B17. The diameter of the sleeve plate B13 is smaller than the diameter of the mixing chamber C1703. The sleeve plate B13 does not fit against the bottom of the stator B17. The top of the sleeve plate B13 is fixedly installed with a cutting column B14 at equal intervals in a ring. The cutting column B14 fits into the mixing chamber C1703. The cutting column B14 does not fit against the inner surface of the mixing chamber C1703.

[0041] Drive shaft 8 drives rotor A9, sleeve disc A11, and sleeve disc B13 to rotate, thereby causing rotor A9 to rotate in mixing chamber B1701, cutting column A12 to rotate in mixing chamber D1705, and cutting column B14 to rotate in mixing chamber C1703. Under the action of centrifugal force, the mixed emulsion enters the bottom of pump housing B15. (It should be noted that cutting column A12 and cutting column B14 are triangular block-shaped prisms, which can effectively separate the liquid during rotation.)

[0042] Reference Figure 3 , Figure 5 As shown, a limiting groove A1501 is opened inside the pump body shell B15. The limiting groove A1501 is located above the limiting groove B1502. A stator A16 is fixedly installed inside the pump body shell B15 at the limiting groove A1501. The stator A16 is movably connected to the drive shaft 8. A vertically downward stirring chamber A1601 is opened in the middle of the top of the stator A16. Eight rectangular holes A1602 are equidistantly opened in an annular shape on the outer circumferential surface of the stirring chamber A1601. A rotor B10 is fixedly sleeved on the outer circumferential surface of the drive shaft 8 above the rotor A9. The rotor B10 is installed at the stirring chamber A1601. Three through holes for cutting liquid are equidistantly opened in the transverse direction on the outer surface of both the rotor B10 and the rotor A9.

[0043] The stator A16 is assembled from two parts, both of which are made by integral casting. After the stator A16 is assembled, it is placed in the limiting groove A1501 in the pump body housing B15 and fixed with bolts. The drive shaft 8 drives the stator A16 to rotate in the stirring chamber A1601. When the solution enters the stirring chamber A1601, it is stirred and cut by the rotor B10. Under the action of centrifugal force, it falls into the stator B17 below through the rectangular hole A1602.

[0044] Reference Figure 1 , Figure 2 , Figure 6 As shown, the pump housing B15 is assembled from two identical components and fixed with bolts. Stator A16 and stator B17 are also assembled from two identical components to form corresponding limiting grooves A1501 and B1502. A main shaft pressure plate 18 is rotatably connected to the end of the drive shaft 8. The main shaft pressure plate 18 is fixed to the top of the pump housing B15 with bolts. An arc-shaped groove is formed in the middle of the bottom of the main shaft pressure plate 18, corresponding to the hemispherical surface of the end of the drive shaft 8. A pump housing A7 is fixedly installed at the bottom of the pump housing B15 with studs. A housing 2 is fixedly installed at the bottom of the pump housing A7 with bolts. The bottom end of the drive shaft 8 is fixedly installed at the connecting end of the coupling 6. The drive shaft 8 is fixedly connected to the drive column 5 through the coupling 6. The drive column 5 is movably connected to the housing 2. The top of the housing 2 is fixedly connected to the mounting base at the bottom of the drive motor 1. The output shaft of the housing 2 and the bottom end of the drive column 5 are both fixedly connected to the pulley 3 through the housing 2. Two drive belts 4 for driving are rotatably connected to the outer peripheral surfaces of the two pulleys 3. The outer peripheral surface of the pump housing B15 is fixedly installed with the connecting pipe 19. The connecting pipe 19 is located on the side surface of the stator A16 and stator B17. The bottom peripheral surface of the pump housing B15 is fixedly installed with the inlet and outlet pipes 20.

[0045] It should be noted that the connection between the pump housing B15 and the drive shaft 8, the connection between the drive column 5 and the housing 2, and the connection between the output shaft of the drive motor 1 and the housing 2 are all equipped with sealing kits and components. These components are all existing and mature technologies, so the specific connection relationships will not be described in detail. Existing connection assemblies can be installed for use. The drive motor 1 is existing technology, and the connection method of the external control equipment is existing and mature technology, so it will not be described in detail.

[0046] By supplying power to the drive motor 1, the pulley 3 is driven to rotate. Under the action of the transmission belt 4, the other pulley 3 and the drive column 5 mounted on the pulley 3 are driven to rotate, thereby driving the coupling 6 to rotate, which in turn drives the drive shaft 8 to rotate. Then, by injecting the raw material into the pump housing B15 through the pipe 19, after it is mixed by the stator B17 and the stator A16, it is discharged through the inlet and outlet pipes 20, thus completing the rapid mixing of the internal raw materials.

[0047] The implementation principle of an online emulsification phase-inversion pump for waterborne polyurethane in this application embodiment is as follows: The drive motor 1 drives the pulley 3 to rotate, thereby driving the drive column 5 and drive shaft 8 to rotate. The drive shaft 8 drives the stator A16 to rotate in the mixing chamber A1601, thereby driving the rotor A9 to rotate in the mixing chamber B1701. The cutting column A12 rotates in the mixing chamber D1705, and the cutting column B14 rotates in the mixing chamber C1703. Under the action of centrifugal force, the mixed solution will enter the mixing chamber B1701, mixing chamber C1703, mixing chamber D1705 and pump body shell B15 in sequence through the rectangular holes A1602, B1702, C1704 and D1706. Through four stirring and cutting, the internal solution can be fully mixed, improving the mixing effect.

[0048] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. An online emulsification phase-inversion pump for waterborne polyurethane, characterized in that: The system includes a pump housing B (15), through which a drive shaft (8) is movably inserted. A limiting groove B (1502) is formed inside the pump housing B (15). A stator B (17), which movably inserts into the drive shaft (8), is fixedly installed inside the pump housing B (15) at the limiting groove B (1502). A stirring chamber B (1701) is formed in the middle of the top of the stator B (17). Multiple rectangular rings are equidistantly spaced on the outer surface of the stirring chamber B (1701). Hole B (1702), and a stirring chamber C (1703) is provided below the bottom of the stator B (17) on the outer ring of the stirring chamber B (1701). Multiple rectangular holes C (1704) are provided at equal intervals on the outer circumferential surface of the stirring chamber C (1703). A stirring chamber D (1705) is provided at the bottom of the stator B (17) on the outer circumference of the stirring chamber C (1703). Multiple rectangular holes D (1706) are provided at equal intervals on the outer circumferential surface of the stirring chamber D (1705). The outer peripheral surface of the drive shaft (8) is fixedly fitted with a rotor A (9) installed at the mixing chamber B (1701). The outer peripheral surface of the drive shaft (8) below the rotor A (9) is fixedly fitted with a sleeve A (11) that fits into the bottom of the stator B (17). The top of the sleeve A (11) is fixedly fitted with a cutting column A (12) that fits into the mixing chamber C (1703). The outer peripheral surface of the drive shaft (8) above the sleeve A (11) is fixedly fitted with a sleeve B (13) that fits into the bottom of the stator B (17). The top of the sleeve B (13) is fixedly fitted with a plurality of cutting columns B (14) that fit into the mixing chamber C (1703).

2. The online emulsification phase-inversion pump for waterborne polyurethane according to claim 1, characterized in that: The pump housing B (15) has a limiting groove A (1501) above the limiting groove B (1502) inside. The pump housing B (15) has a stator A (16) fixedly installed inside the limiting groove A (1501) that is movably connected to the drive shaft (8). The top center of the stator A (16) has a stirring chamber A (1601). The outer circumferential surface of the stirring chamber A (1601) has a plurality of rectangular holes A (1602) equidistantly spaced in an annular pattern.

3. The online emulsification phase-inversion pump for waterborne polyurethane according to claim 1, characterized in that: The outer peripheral surface of the drive shaft (8) is fixedly fitted with a rotor B (10) installed in the mixing chamber A (1601) above the rotor A (9). Both the outer surfaces of the rotor B (10) and the rotor A (9) are provided with through holes for cutting liquid.

4. The online emulsification phase-inversion pump for waterborne polyurethane according to claim 1, characterized in that: The pump housing B (15), stator A (16), and stator B (17) are all assembled by splicing two parts of the same size.

5. The online emulsification phase-inversion pump for waterborne polyurethane according to claim 1, characterized in that: The end of the drive shaft (8) is hemispherical, and the end of the drive shaft (8) is rotatably connected to a main shaft pressure plate (18) fixed on the top of the pump housing B (15). The bottom of the main shaft pressure plate (18) is provided with an arc-shaped groove corresponding to the top hemispherical surface of the drive shaft (8).

6. The online emulsification phase-inversion pump for waterborne polyurethane according to claim 1, characterized in that: Pump body shell B (15) is fixedly provided with pump body shell A (7) at the bottom, and box body (2) is fixedly provided at the bottom of pump body shell A (7). A coupling (6) is provided at the bottom end of the drive shaft (8), and the drive shaft (8) is fixedly connected to a drive column (5) that movably penetrates the box body (2) through the coupling (6).

7. The online emulsification phase-inversion pump for waterborne polyurethane according to claim 6, characterized in that: A drive motor (1) is fixedly installed on one side of the top of the housing (2). Both the output shaft of the housing (2) and the bottom end of the drive column (5) are fixed with pulleys (3). The outer peripheral surfaces of the two pulleys (3) are rotatably connected with a transmission belt (4).

8. The online emulsification phase-inversion pump for waterborne polyurethane according to claim 1, characterized in that: The outer peripheral surface of the pump body shell B (15) near the stator A (16) and stator B (17) is fixedly installed with a connecting pipe (19), and the outer peripheral surface of the bottom end of the pump body shell B (15) is fixedly installed with an inlet and outlet pipe (20).

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