CN215028101U - Dispersion devices for waterborne polyurethane - Google Patents
Dispersion devices for waterborne polyurethane Download PDFInfo
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- CN215028101U CN215028101U CN202121866576.8U CN202121866576U CN215028101U CN 215028101 U CN215028101 U CN 215028101U CN 202121866576 U CN202121866576 U CN 202121866576U CN 215028101 U CN215028101 U CN 215028101U
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Abstract
The application discloses dispersion devices for waterborne polyurethane belongs to the technical field of waterborne polyurethane production facility, and its technical scheme main points include: the dispersing barrel comprises a bracket, a first feeding pipe, a second feeding pipe and a discharging port; the pre-setting device is connected with the dispersing barrel through a first feeding pipe; the stirring device is arranged on the dispersing barrel and provided with a plurality of emulsifying heads, and the stirring device is provided with a brush which is abutted against the inner wall surface of the dispersing barrel; wherein, the lateral wall of dispersion bucket is arranged in to first inlet pipe, second inlet pipe, and the bottom of dispersion bucket is arranged in to the discharge gate, and this application provides a dispersion devices, realizes preventing that polyurethane from adhering on the inner wall of dispersion case, improving dispersion efficiency to waterborne polyurethane's dispersion process.
Description
Technical Field
The application belongs to the technical field of waterborne polyurethane production equipment, and particularly relates to a dispersing device for waterborne polyurethane.
Background
The dispersion process is critical when producing the aqueous polyurethane resin, the prior art generally dissolves the polyurethane prepolymer synthesized in a synthesis kettle in the inner ketone to reduce the viscosity of the system, then adds a large amount of water under high-speed stirring to generate phase inversion, the water is changed into a continuous phase to form aqueous dispersion of polyurethane polymer, and finally the acetone is distilled to remove to obtain the solvent-free aqueous polyurethane resin.
The prior Chinese patent with publication number CN203291755U discloses a dispersing device, in particular to a device for dispersing and treating waterborne polyurethane; the utility model aims at providing a device for the dispersion treatment of the waterborne polyurethane, which reduces the cost and has uniform dispersion; the device comprises a dispersion tank, a motor, an emulsifying head, an electric control emptying valve and a discharging electric control valve; the dispersion tank is a sealed tank body; the emulsifying head is connected with a rotating shaft, the rotating shaft is connected with a motor, and the emulsifying head is arranged inside the dispersing tank; a feeding pipe is connected above the dispersion tank, a discharging pipe is connected to the bottom of the dispersion tank, and a discharging control valve is arranged on the discharging pipe; the top of the dispersion tank is also provided with an exhaust pipeline, and the pipeline is provided with an electric control blow-down valve; has the characteristics of simple structure, convenient use, reasonable design and the like.
Although the dispersion apparatus described above realizes dispersion treatment of the aqueous polyurethane, the raw material concentration of the polyurethane is high and the polyurethane has a slight adhesiveness, so that a part of the polyurethane is likely to adhere to the inner wall of the dispersion tank, and uneven mixing and dissolution are likely to occur.
SUMMERY OF THE UTILITY MODEL
The purpose of the embodiments of the present application is to provide a dispersion apparatus, which can realize the dispersion process of aqueous polyurethane, prevent polyurethane from adhering to the inner wall of the dispersion tank, and improve the dispersion efficiency.
The embodiment of the application provides a dispersion devices for waterborne polyurethane, includes: the dispersing barrel comprises a bracket, a first feeding pipe, a second feeding pipe and a discharging port; the pre-setting device is connected with the dispersing barrel through a first feeding pipe; the stirring device is arranged on the dispersing barrel and provided with a plurality of emulsifying heads, and the stirring device is provided with a brush which is abutted against the inner wall surface of the dispersing barrel; wherein, the lateral wall of dispersion bucket is arranged in to first inlet pipe, second inlet pipe, and the bottom of dispersion bucket is arranged in to the discharge gate.
Firstly, putting a solution of polyurethane and inner ketone into a preset device, conveniently leading the polyurethane into a dispersing barrel through a first feeding pipe, installing an electric control valve on the first feeding pipe, controlling and metering the amount of prepolymer flowing into the dispersing barrel, leading water through a second feeding pipe, installing an electric control valve on the second feeding pipe, controlling and metering the amount of water flowing into the dispersing barrel, conveniently controlling the component proportion of the polyurethane, installing a filtering device on the second feeding pipe, removing impurities in the water through the filtering device, improving the stability of polyurethane reaction, discharging through a discharging port after the reaction of the dispersing barrel is completed, installing a valve on the discharging port, controlling the discharging of the discharging port, rotating an emulsifying head through a stirring device, improving the stirring efficiency in the dispersing barrel, brushing off the polyurethane adhered to the dispersing barrel through a brush to enable the emulsifying and dissolving to be more uniform, installing and connecting the first feeding pipe and the second feeding pipe with the dispersing barrel through screws or bolts, the discharge port is arranged at the bottom of the dispersion barrel, so that the polyurethane can be discharged after being stirred and emulsified.
Further, the emulsification head comprises: the dispersing frame is connected with the emulsifying head, and the brush is arranged on the dispersing frame; the emulsifying plate is arranged on the lower side of the emulsifying head and is uniformly distributed around the axis of the emulsifying head.
Be used for installing the brush through the dispersion frame, the brush is firm with the installation of dispersion frame, guarantees the life of brush, and dispersion frame and emulsification head welded connection perhaps pass through bolt and nut to be connected, make dispersion frame and emulsification head be connected firmly, emulsification board and the first body coupling of emulsification, emulsification head adopts the tube-shape, mills the processing shaping and goes out the emulsification board to the lateral wall of emulsification head, and when emulsification head rotated, messenger's solution was arranged in and is flowed between the emulsification board, further improved aqueous polyurethane's dispersion efficiency.
Further, the dispersion barrel includes: the barrel cover is hinged with the dispersing barrel; a dispersion rod mounted on an inner wall surface of the dispersion barrel; the exhaust pipe is arranged on the barrel cover.
The bung is articulated with the dispersion bucket, is connected sealed between bung and the dispersion bucket, guarantees that reaction effect is stable, drives the rotatory back of waterborne polyurethane through dispersion frame during agitating unit stirring and bumps with the dispersion pole and smashes to can make the dispersion of material more, increase dispersion stirring effect, improve waterborne polyurethane's production quality, when polyurethane raw materials, during the leading-in dispersion bucket of water, the atmospheric pressure increases in the dispersion bucket, outside discharging the dispersion bucket through the blast pipe, guarantee that the atmospheric pressure is stable in the dispersion bucket.
Further, the stirring device includes: the motor is arranged on the barrel cover, and an output shaft of the motor is provided with a convex joint; the stirring rod is connected with the dispersing barrel through a bearing and is provided with a groove joint matched with the convex joint; wherein, the emulsification head is installed on the puddler, and the axis of emulsification head is the same with the axis of puddler.
Provide kinetic energy through motor drive, work as bung and dispersion bucket cooperation, the cross-section that the arch connects adopts multilateral shape, the arch connects and groove joint cooperation, make the motor drive puddler rotate, the emulsification head is installed on the puddler, the puddler rotates further drive emulsification head and rotates, realize the stirring dispersion of polyurethane, the axis of emulsification head is the same with the axis of puddler, it is stable when guaranteeing the puddler rotation, install two and above emulsification heads on the puddler, emulsification head and dispersion pole are arranged in and are dispersed the interior alternate distribution of bucket.
Furthermore, the stirring rod is provided with an arc-shaped scraper which is abutted against the bottom of the dispersion barrel.
The scraper blade is installed on the puddler, through welding or screw bolted connection, scrapes the polyurethane of dispersion bucket bottom adhesion for the emulsification dissolves more evenly, and the bottom of dispersion bucket has certain tapering, scrapes through the scraper blade, improves the ejection of compact speed when the ejection of compact, reduces dispersion bucket internal face adhesion polyurethane.
Further, the preset device comprises: and the weighing device is arranged at the bottom of the preset device and is used for weighing the preset device.
The weighing device determines the mass of the polyurethane by measuring the mass difference before and after the polyurethane is put in, weighs the mass of the polyurethane in the presetting device, improves the control on the stirring amount of the polyurethane, ensures that the components for stirring the waterborne polyurethane at each time are within the error range, and ensures the production quality of the waterborne polyurethane.
The beneficial effects of the embodiment of the application are that:
1. scrape the brush through internal face of scattering frame, brush, scraper blade to the dispersion bucket, brush the polyurethane that will adhere in dispersion bucket internal face and fall for the emulsification dissolves more evenly, improves the dissolution efficiency, and dissolves the quality, through emulsification head, emulsification board, dispersion pole with higher speed polyurethane stirring dissolved efficiency.
2. Make the puddler rotatory through agitating unit, realize the stirring effect of emulsification head, when closing bung and dispersion bucket, make protruding joint and groove joint cooperation, make motor and puddler be connected conveniently, and make the puddler rotatory through motor drive.
3. The weighing device is convenient for measuring the quality of the polyurethane, the weight of the polyurethane is convenient to control, and the quality of the product is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a dispersing apparatus according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of an emulsification head according to an embodiment of the present application;
FIG. 3 is a schematic top view of a dispersing barrel according to an embodiment of the present disclosure;
reference numeral in the figure, 1, a dispersion barrel; 11. a support; 12. a first feed tube; 13. a second feed tube; 14. a discharge port; 15. a barrel cover; 16. a dispersion rod; 17. an exhaust pipe; 2. a presetting device; 3. a stirring device; 31. a motor; 32. a raised joint; 33. a stirring rod; 34. a groove joint; 4. an emulsifying head; 41. a dispersion rack; 42. a brush; 43. an emulsifying plate; 5. a squeegee; 6. a weighing device; 7. and a bearing.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The portable server provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings by specific embodiments and application scenarios thereof.
Example 1
As shown in fig. 1, an embodiment of the present application provides a dispersion apparatus for aqueous polyurethane, including: the dispersing device comprises a dispersing barrel 1, wherein the dispersing barrel 1 comprises a support 11, a first feeding pipe 12, a second feeding pipe 13 and a discharging port 14; the pre-setting device 2 is connected with the dispersing barrel 1 through a first feeding pipe 12; the stirring device 3 is arranged on the dispersing barrel 1, the stirring device 3 is provided with a plurality of emulsifying heads 4, and the stirring device 3 is provided with a brush 42 which is abutted against the inner wall surface of the dispersing barrel 1; wherein, the first feeding pipe 12 and the second feeding pipe 13 are arranged on the side wall of the dispersion barrel 1, and the discharge port 14 is arranged at the bottom of the dispersion barrel 1.
Further, the presetting device 2 includes: and the weighing device 6 is arranged at the bottom of the preset device 2, and is used for weighing the preset device 2.
Firstly, polyurethane and ketoneketone solution is placed into a preset device 2, the polyurethane is conveniently introduced into a dispersion barrel 1 through a first inlet pipe 12, an electric control valve is installed on the first inlet pipe 12 to control and measure the amount of prepolymer flowing into the dispersion barrel 1, water is introduced through a second inlet pipe 13, the electric control valve is installed on the second inlet pipe 13 to control and measure the amount of water flowing into the dispersion barrel 1, the component proportion of the polyurethane is conveniently controlled, a filtering device is installed on the second inlet pipe 13 to remove impurities in the water through the filtering device, the stability of polyurethane reaction is improved, the polyurethane is discharged through a discharge port 14 after the reaction of the dispersion barrel 1 is finished, a valve is installed on the discharge port 14 to control the discharge of the discharge port 14, an emulsifying head 4 is rotated through a stirring device 3 to improve the stirring efficiency in the dispersion barrel 1, the polyurethane adhered to the inner wall surface of the dispersion barrel 1 is brushed through a hairbrush 42 to ensure that the emulsifying and the dissolving are more uniform, the first feeding pipe 12 and the second feeding pipe 13 are connected with the dispersing barrel 1 through screws or bolts, and the discharge port 14 is arranged at the bottom of the dispersing barrel 1 to facilitate the discharge of the polyurethane after the polyurethane is stirred and emulsified.
The weighing device 6 determines the mass of the polyurethane by measuring the mass difference before and after the polyurethane is put in, weighs the mass of the polyurethane in the presetting device 2, improves the control of the stirring amount of the polyurethane, ensures that the components for stirring the waterborne polyurethane at each time are within the error range, and ensures the production quality of the waterborne polyurethane.
Example 2
As shown in fig. 1 and fig. 2, the present embodiment provides a dispersing device for aqueous polyurethane, which includes the above technical features, and further includes an emulsifying head 4: a dispersion frame 41, wherein the dispersion frame 41 is connected with the emulsification head 4, and the brush 42 is arranged on the dispersion frame 41; an emulsifying plate 43, wherein the emulsifying plate 43 is arranged at the lower side of the emulsifying head 4, and the emulsifying plate 43 is evenly distributed around the axis of the emulsifying head 4.
The dispersion frame 41 is used for installing the brush 42, the brush 42 and the dispersion frame 41 are installed stably, the service life of the brush 42 is guaranteed, the dispersion frame 41 is connected with the emulsification head 4 in a welding mode or connected through bolts and nuts, the dispersion frame 41 is connected with the emulsification head 4 stably, the emulsification plate 43 is connected with the emulsification head 4 integrally, the emulsification head 4 is in a cylindrical shape, the emulsification plate 43 is formed by milling the side wall of the emulsification head 4, when the emulsification head 4 rotates, solution is enabled to flow between the emulsification plates 43, and the dispersion efficiency of the aqueous polyurethane is further improved.
Example 3
As shown in fig. 1, the present embodiment provides a dispersion apparatus for aqueous polyurethane, which includes, in addition to the above technical features, a dispersion barrel 1 further including: the barrel cover 15 is hinged with the dispersing barrel 1; a dispersion rod 16, the dispersion rod 16 being attached to the inner wall surface of the dispersion tank 1; the exhaust pipe 17, the exhaust pipe 17 is arranged on the barrel cover 15.
Example 4
As shown in fig. 1 and fig. 3, the present embodiment provides a dispersing apparatus for aqueous polyurethane, which includes the above technical features, and further includes a stirring device 3: the motor 31, the motor 31 is mounted on the barrel cover 15, the output shaft of the motor 31 has protruding joints 32; the stirring rod 33, the stirring rod 33 is connected with the dispersing barrel 1 through the bearing 7, the stirring rod 33 is provided with a groove joint 34 matched with the convex joint 32; wherein, the emulsifying head 4 is arranged on the stirring rod 33, and the axis of the emulsifying head 4 is the same as the axis of the stirring rod 33.
Furthermore, the stirring rod 33 is provided with an arc-shaped scraper 5, and the scraper 5 is abutted against the bottom of the dispersing barrel 1.
Kinetic energy is provided by driving of the motor 31, when the barrel cover 15 is matched with the dispersing barrel 1, the cross section of the protruding joint 32 is in a polygonal shape, the protruding joint 32 is matched with the groove joint 34, the motor 31 drives the stirring rod 33 to rotate, the emulsifying head 4 is installed on the stirring rod 33, the stirring rod 33 rotates to further drive the emulsifying head 4 to rotate, stirring and dispersing of polyurethane are achieved, the axis of the emulsifying head 4 is the same as the axis of the stirring rod 33, stability in rotation of the stirring rod 33 is guaranteed, two or more emulsifying heads 4 are installed on the stirring rod 33, and the emulsifying heads 4 and the dispersing rod 16 are alternately distributed in the dispersing barrel 1.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A dispersion apparatus for aqueous polyurethane, comprising:
the dispersing barrel (1), wherein the dispersing barrel (1) comprises a support (11), a first feeding pipe (12), a second feeding pipe (13) and a discharging port (14);
the device comprises a presetting device (2), wherein the presetting device (2) is connected with a dispersing barrel (1) through a first feeding pipe (12);
the stirring device (3) is arranged on the dispersing barrel (1), the stirring device (3) is provided with a plurality of emulsifying heads (4), and the stirring device (3) is provided with a brush (42) which is abutted against the inner wall surface of the dispersing barrel (1);
wherein, the lateral wall of dispersion bucket (1) is placed in to first inlet pipe (12), second inlet pipe (13), the bottom of dispersion bucket (1) is placed in to discharge gate (14).
2. The dispersion apparatus for aqueous polyurethane according to claim 1, wherein the emulsifying head (4) comprises:
the dispersing frame (41), the dispersing frame (41) is connected with the emulsifying head (4), and the brush (42) is arranged on the dispersing frame (41);
the emulsifying plate (43) is arranged on the lower side of the emulsifying head (4), and the emulsifying plate (43) is uniformly distributed around the axis of the emulsifying head (4).
3. The dispersion apparatus for aqueous polyurethane according to claim 2, wherein the dispersion barrel (1) comprises:
the barrel cover (15), the barrel cover (15) is hinged with the dispersing barrel (1);
a dispersion rod (16), wherein the dispersion rod (16) is mounted on the inner wall surface of the dispersion barrel (1);
the exhaust pipe (17), the exhaust pipe (17) is arranged on the barrel cover (15).
4. The dispersion apparatus for aqueous polyurethane according to claim 3, wherein the stirring device (3) comprises:
the motor (31), the said motor (31) is mounted on bung (15), the output shaft of the said motor (31) has protruding piecings (32);
the stirring rod (33), the stirring rod (33) is connected with the dispersing barrel (1) through a bearing (7), and the stirring rod (33) is provided with a groove joint (34) matched with the convex joint (32);
the emulsifying head (4) is installed on the stirring rod (33), and the axis of the emulsifying head (4) is the same as that of the stirring rod (33).
5. The dispersion apparatus for aqueous polyurethane according to claim 4, wherein the stirring rod (33) is provided with a scraper (5) having an arc shape, and the scraper (5) abuts against the bottom of the dispersion barrel (1).
6. The dispersion apparatus for aqueous polyurethane according to any one of claims 1 to 5, wherein the pre-set means (2) comprises:
the weighing device (6) is arranged at the bottom of the preset device (2) and is used for weighing the preset device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121866576.8U CN215028101U (en) | 2021-08-10 | 2021-08-10 | Dispersion devices for waterborne polyurethane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121866576.8U CN215028101U (en) | 2021-08-10 | 2021-08-10 | Dispersion devices for waterborne polyurethane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215028101U true CN215028101U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121866576.8U Active CN215028101U (en) | 2021-08-10 | 2021-08-10 | Dispersion devices for waterborne polyurethane |
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| Country | Link |
|---|---|
| CN (1) | CN215028101U (en) |
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2021
- 2021-08-10 CN CN202121866576.8U patent/CN215028101U/en active Active
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