Static mixing device for synthesis of polyurethane chain extender
By introducing the flow block, flow hole, filter unit and cleaning unit into the static mixing device of the polyurethane chain extender, the problem of difficulty in cleaning the fluid after mixing is solved, and the full mixing and thorough cleaning of the polyurethane chain extender is achieved, and the The blockage problem improves mixing efficiency and product quality.
Patent Information
- Application Number
- CN202421047809.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-15
AI Technical Summary
The existing static mixing device for polyurethane chain extender cannot effectively clean the fluid after mixing, resulting in internal blockage and affecting subsequent use.
A static mixing device including a mixing tube, a flow guide block, a flow guide hole, a filter unit and a cleaning unit is designed. Full mixing is achieved through the flow guide block and a flow guide hole, and the filter unit is pre-filtered and re-filtered, and the cleaning unit is used. The water pump, rotary unit and motor are thoroughly cleaned.
It effectively avoids the blockage problem inside the fluid after mixing, ensures full mixing and cleaning of the polyurethane chain extender, and improves mixing efficiency and product quality.
Smart Images
Figure CN222266759U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of static mixing of polyurethane chain extenders, in particular to a static mixing device for synthesizing polyurethane chain extenders. Background Art
[0002] The full name of polyurethane is polyurethane, which is a polymer material with excellent mechanical properties and strong plasticity formed by polyols and polyisocyanates through condensation reaction. Its earliest synthesis used 1,6-hexamethylene diisocyanate and 1,4-butanediol as raw materials, and the first straight-chain linear polyurethane resin was synthesized. The main classifications of polyurethane include polyether type, polyester type, polyimide type, polyurea type, etc. They can be made into polyurethane plastics, polyurethane fibers, polyurethane rubbers and elastomers. Chain extenders, also known as chain growth agents, are substances that can react with functional groups on linear polymer chains to extend molecular chains and increase molecular weight. They are often used to improve the mechanical properties and process properties of polyurethane, polyester and other products.
[0003] At present, publication number CN217746557U discloses a static mixing device, including an outer shell and an inner core arranged in the outer shell, the inner core includes a guide column and a multi-layer mixing element arranged along the guide column, the mixing element is spot-welded to the guide column, each layer of the mixing element includes a plurality of mixing blades, the mixing blades are wavy shapes formed by folding rectangular plates, and adjacent mixing elements form an angle of 60° to 120° in the radial direction of the guide column. The utility model designs a novel static mixing device, which has multiple cage-type mixing units, so that complex turbulence is generated when the fluid flows through, and the inner core forms a spiral structure as a whole, which increases the fluid disturbance, thereby greatly improving the efficiency of fluid mixing.
[0004] In order to solve the mixing problem, the existing technology uses multiple cage-type mixing units to generate complex turbulence when the fluid flows through, and the inner core forms a spiral structure as a whole to increase fluid disturbance, thereby greatly improving the efficiency of fluid mixing. However, there is a situation where the fluid inside the kettle cannot be cleaned after the fluid is mixed, which leads to blockage problems during subsequent use. Utility Model Content
[0005] The utility model aims to provide a static mixing device for synthesizing a polyurethane chain extender to solve the problems raised in the above-mentioned background technology.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A static mixing device for synthesizing a polyurethane chain extender comprises a support frame, a mixing unit is arranged on the top surface of the support frame, a filtering unit is arranged on the top surface of the mixing unit, and a cleaning unit is arranged on one side of the support frame.
[0008] The cleaning unit includes a water tank, which is arranged on one side of the support frame. A water inlet pipe is sleeved on the top surface of one side of the water tank, a water supply pipe is sleeved on the inner side of the water tank, a water pump is sleeved on the inner side of the surface of the water supply pipe, one side of the water pump is fixedly connected to the top surface of the water tank, a rotating unit is arranged at one end of the water supply pipe, a three-way pipe is sleeved on one side of the rotating unit, and a plurality of cleaning nozzles are sleeved on the outer side of the surface of the three-way pipe.
[0009] A further improvement of the technical solution of the utility model is that the mixing unit includes a mixing tube, the mixing tube is fixedly connected to the top surface of the support frame, a plurality of guide blocks are fixedly connected to the inner side of the mixing tube, and a plurality of guide holes are opened on the inner side of the guide block.
[0010] By adopting the above technical solution, the mixing tube, the guide block and the guide hole cooperate with each other, so as to achieve the effect of fully mixing the polyurethane chain extender synthesis.
[0011] A further improvement of the technical solution of the utility model is that a transparent plate is fixedly connected to the inner side of the top surface of the mixing tube, and a discharge pipe is sleeved on the inner side of the surface of the mixing tube.
[0012] By adopting the above technical solution and providing the transparent plate, the mixing situation inside the mixing tube can be easily observed.
[0013] A further improvement of the technical solution of the utility model is that: the filter unit includes a feed pipe, the feed pipe is sleeved on the inner side of the surface of the mixing tube, the top surface of the feed pipe is fixedly connected with a fixing groove, the inner side of the fixing groove is provided with a filter frame, one side of the filter frame is provided with a fixing block, the fixing block is slidably engaged in the inside of the fixing groove, and a filter net is provided on the inner side of the surface of the filter frame.
[0014] By adopting the above technical scheme, through the mutual cooperation of the feed pipe, the fixed groove, the filter frame, the fixed block and the filter screen, the effect of pre-filtering the mixed polyurethane chain extender is achieved, while at the same time avoiding impurities from being blocked inside the mixing tube during the mixing process, thereby affecting the mixing effect.
[0015] A further improvement of the technical solution of the utility model is that: an engaging block is fixedly connected to the inner side of the filter unit, a sealing block is slidably engaged with the inner side of the engaging block, and a second filter screen is fixedly connected to the inner side of the sealing block.
[0016] By adopting the above technical scheme, the meshing block, the sealing block and the filter screen 2 cooperate with each other to achieve the effect of re-filtering the polyurethane chain extender synthesis. At the same time, the connection relationship between the sealing block and the meshing block makes it easy for workers to disassemble and clean the filter screen 2.
[0017] A further improvement of the technical solution of the utility model is that the rotating unit includes a connecting groove, the connecting groove is sleeved on one end of the water pipe, a connecting pipe is rotatably connected to the inner side of the connecting groove, and one end of the connecting pipe is sleeved with one end of the engagement block.
[0018] By adopting the above technical solution, the effect of conveying water to the inside of the cleaning mixing tube is achieved through the mutual cooperation of the connecting groove, the connecting pipe and the engaging block.
[0019] A further improvement of the technical solution of the utility model is that: a gear 1 is fixedly connected to the inner side of the connecting pipe, a gear 2 is meshingly connected to one side of the gear 1, a motor is fixedly connected to one side of the gear 2, and one side of the motor is fixedly connected to one side of the mixing tube.
[0020] By adopting the above technical solution, through the mutual cooperation of gear one, gear two and the motor, the effect of rotating the inside of the mixing tube for cleaning is achieved, while the cleaning effect is improved, making it cleaner.
[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0022] 1. The utility model provides a static mixing device for synthesizing a polyurethane chain extender. Through the cooperation of a water pump, a rotating unit, a tee pipe and a cleaning nozzle, the effect of cleaning the polyurethane chain extender after mixing is achieved, so as to avoid the problem of material remaining inside the mixing tube and causing blockage in subsequent mixing pole processing. Through the cooperation of the mixing tube, the guide block and the guide hole, the effect of fully mixing the polyurethane chain extender synthesis is achieved. Through the setting of a transparent plate, the effect of facilitating the observation of the mixing situation inside the mixing tube is achieved.
[0023] 2. The utility model provides a static mixing device for synthesizing a polyurethane chain extender. Through the cooperation of a feed pipe, a fixed groove, a filter frame, a fixed block and a filter screen 1, the effect of pre-filtering the mixed polyurethane chain extender is achieved, while preventing impurities from being blocked inside the mixing tube during the mixing process, thereby affecting the mixing effect. Through the cooperation of an engaging block, a sealing block and a filter screen 2, the effect of re-filtering the synthesized polyurethane chain extender is achieved. At the same time, through the connection between the sealing block and the engaging block, it is convenient for workers to disassemble and clean the filter screen 2. Through the cooperation of gear 1, gear 2 and a motor, the effect of rotating the inside of the mixing tube for cleaning is achieved, while the cleaning effect is improved, making it cleaner. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the mixing unit of the utility model;
[0026] Figure 3 It is a schematic diagram of the exploded structure of the filter unit of the utility model;
[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the cleaning unit of the utility model;
[0028] Figure 5 For this utility model Figure 4 An enlarged schematic diagram of the structure of section A.
[0029] In the figure: 1. support frame; 2. mixing unit; 21. mixing tube; 22. guide block; 23. guide hole; 24. transparent plate; 25. discharge pipe; 3. filter unit; 31. feed pipe; 32. fixing groove; 33. filter frame; 34. fixing block; 35. filter screen 1; 36. meshing block; 37. sealing block; 38. filter screen 2; 4. cleaning unit; 41. water tank; 42. water inlet pipe; 43. water pipe; 44. water pump; 45. rotating unit; 451. connecting groove; 452. connecting pipe; 453. gear 1; 454. gear 2; 455. motor; 46. three-way pipe; 47. cleaning nozzle. DETAILED DESCRIPTION
[0030] The present invention is further described in detail below in conjunction with the embodiments:
[0031] Example 1
[0032] like Figure 1-5As shown, the utility model provides a static mixing device for synthesizing a polyurethane chain extender, comprising a support frame 1, a mixing unit 2 is arranged on the top surface of the support frame 1, a filtering unit 3 is arranged on the top surface of the mixing unit 2, a cleaning unit 4 is arranged on one side of the support frame 1, the cleaning unit 4 comprises a water tank 41, the water tank 41 is arranged on one side of the support frame 1, a water inlet pipe 42 is sleeved on the top surface of one side of the water tank 41, a water delivery pipe 43 is sleeved on the inner side of the water tank 41, a water pump 44 is sleeved on the inner side of the surface of the water delivery pipe 43, one side of the water pump 44 is fixedly connected to the top surface of the water tank 41, a rotating unit 45 is arranged on one end of the water delivery pipe 43, a tee pipe 46 is sleeved on one side of the rotating unit 45, a plurality of cleaning nozzles 47 are sleeved on the outer side of the surface of the tee pipe 46, the rotating unit 45 comprises a connecting groove 451, the connecting groove 451 is sleeved on one end of the water delivery pipe 43, the inner side of the connecting groove 451 A connecting pipe 452 is rotatably connected, one end of the connecting pipe 452 is sleeved with one end of the meshing block 36, a gear 1 453 is fixedly connected to the inner side of the connecting pipe 452, one side of the gear 1 453 is meshedly connected to a gear 2 454, one side of the gear 2 454 is fixedly connected to a motor 455, one side of the motor 455 is fixedly connected to one side of the mixing tube 21, clean water is placed inside the water tank 41 through the water inlet pipe 42, and then the water pump 44 is controlled to pump the water in the water tank 41 out through the water delivery pipe 43, and the inside of the mixing tube 21 is cleaned through a plurality of cleaning nozzles 47 at one end of the three-way pipe 46, and the motor 455 is controlled to drive the gear 2 454 to mesh with the gear 1 453, and then the connecting pipe 452 drives the plurality of cleaning nozzles 47 on the inner side of the three-way pipe 46 to rotate inside the mixing tube 21, and then the inside of the mixing tube 21 is thoroughly cleaned.
[0033] Example 2
[0034] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the mixing unit 2 includes a mixing tube 21, the mixing tube 21 is fixedly connected to the top surface of the support frame 1, a plurality of guide blocks 22 are fixedly connected to the inner side of the mixing tube 21, a plurality of guide holes 23 are opened on the inner side of the guide block 22, a transparent plate 24 is fixedly connected to the inner side of the top surface of the mixing tube 21, a discharge pipe 25 is sleeved on the inner side of the surface of the mixing tube 21, and the polyurethane chain extender after filtration enters the interior of the mixing tube 21, and the polyurethane chain extender entering the mixing tube 21 first flows around through the guide block 22, and is mixed with the polyurethane chain extender by the plurality of guide holes 23 opened on the inner side of the guide block 22, and the worker can observe the mixing situation of the polyurethane chain extender through the transparent plate 24, and the polyurethane chain extender after mixing flows out through the discharge pipe 25.
[0035] Example 3
[0036] like Figure 1-5As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the filter unit 3 includes a feed pipe 31, the feed pipe 31 is sleeved on the inner side of the surface of the mixing tube 21, the top surface of the feed pipe 31 is fixedly connected with a fixed groove 32, the inner side of the fixed groove 32 is provided with a filter frame 33, one side of the filter frame 33 is provided with a fixed block 34, the fixed block 34 is slidably engaged with the inside of the fixed groove 32, the inner side of the surface of the filter frame 33 is provided with a filter screen 1 35, the inner side of the filter unit 3 is fixedly connected with an engagement block 36, the inner side of the engagement block 36 is slidably engaged with a sealing block 37, the inner side of the sealing block 37 is fixedly connected with a filter screen 2 38, by mixing the The polyurethane chain extender is added through the feed pipe 31. At the same time, the impurities inside the polyurethane chain extender are filtered through the filter screen 1 35 during the addition. At the same time, the polyurethane chain extender is filtered again through the filter screen 2 38. After the filtration, the polyurethane chain extender enters the interior of the mixing tube 21. For long-term use, the filter frame 33 is rotated to remove the fixed block 34 from the inner side of the fixed groove 32, and then the impurities filtered out from the surface of the filter frame 33 are cleaned. At the same time, the filter screen 2 38 is rotated to remove the sealing block 37 from the inner side of the meshing block 36, and then the filter screen 2 38 is cleaned. After cleaning, the fixed groove 32 and the filter screen 2 38 are installed to work again.
[0037] The working principle of the static mixing device for synthesizing polyurethane chain extender is described in detail below.
[0038] like Figure 1-5As shown, the polyurethane chain extender to be mixed is added through the feed pipe 31, and the impurities inside the polyurethane chain extender are filtered through the filter screen 1 35 during the addition, and the polyurethane chain extender is filtered again through the filter screen 2 38. After the filtration, the polyurethane chain extender enters the interior of the mixing tube 21, and then the polyurethane chain extender entering the mixing tube 21 first flows around through the guide block 22, and is mixed with the polyurethane chain extender by a plurality of guide holes 23 opened on the inner side of the guide block 22. The worker can observe the mixing of the polyurethane chain extender through the transparent plate 24. After the mixing is completed, the polyurethane chain extender flows out through the discharge pipe 25, and the worker can collect it. After the mixing is completed, the clean water is placed in the water tank 41 through the water inlet pipe 42 , then the water pump 44 is controlled to pump out the water in the water tank 41 through the water pipe 43, and the inside of the mixing tube 21 is cleaned through the multiple cleaning nozzles 47 at one end of the three-way pipe 46, and the motor 455 is controlled to drive the gear 2 454 and the gear 1 453 to engage with each other, and then the connecting pipe 452 drives the multiple cleaning nozzles 47 on the inner side of the three-way pipe 46 to rotate inside the mixing tube 21, and then the inside of the mixing tube 21 is thoroughly cleaned, and at the same time, the filter frame 33 is rotated to remove the fixed block 34 from the inner side of the fixed groove 32, and then the impurities filtered out from the surface of the filter frame 33 are cleaned, and at the same time, the filter screen 2 38 is rotated to remove the sealing block 37 from the inner side of the meshing block 36, and then the filter screen 2 38 is cleaned. After cleaning, the fixed groove 32 and the filter screen 2 38 are installed to work again.
[0039] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A static mixing device for synthesizing a polyurethane chain extender, comprising a support frame (1), characterized in that: A mixing unit (2) is arranged on the top surface of the support frame (1), a filtering unit (3) is arranged on the top surface of the mixing unit (2), and a cleaning unit (4) is arranged on one side of the support frame (1); The cleaning unit (4) comprises a water tank (41), the water tank (41) being arranged on one side of the support frame (1), a water inlet pipe (42) being sleeved on the top surface of one side of the water tank (41), a water delivery pipe (43) being sleeved on the inner side of the water tank (41), a water pump (44) being sleeved on the inner side of the surface of the water delivery pipe (43), one side of the water pump (44) being fixedly connected to the top surface of the water tank (41), a rotating unit (45) being arranged at one end of the water delivery pipe (43), a three-way pipe (46) being sleeved on one side of the rotating unit (45), and a plurality of cleaning nozzles (47) being sleeved on the outer side of the surface of the three-way pipe (46).
2. A static mixing device for synthesizing a polyurethane chain extender according to claim 1, characterized in that: The mixing unit (2) comprises a mixing tube (21), the mixing tube (21) being fixedly connected to the top surface of the support frame (1), a plurality of guide blocks (22) being fixedly connected to the inner side of the mixing tube (21), and a plurality of guide holes (23) being provided on the inner side of the guide blocks (22).
3. A static mixing device for synthesizing a polyurethane chain extender according to claim 2, characterized in that: A transparent plate (24) is fixedly connected to the inner side of the top surface of the mixing tube (21), and a discharge pipe (25) is sleeved on the inner side of the surface of the mixing tube (21).
4. A static mixing device for synthesizing a polyurethane chain extender according to claim 1, characterized in that: The filter unit (3) comprises a feed pipe (31), the feed pipe (31) is sleeved on the inner side of the surface of the mixing tube (21), the top surface of the feed pipe (31) is fixedly connected with a fixing groove (32), a filter frame (33) is arranged on the inner side of the fixing groove (32), a fixing block (34) is arranged on one side of the filter frame (33), the fixing block (34) is slidably engaged in the interior of the fixing groove (32), and a filter screen (35) is arranged on the inner side of the surface of the filter frame (33).
5. A static mixing device for synthesizing a polyurethane chain extender according to claim 4, characterized in that: An engaging block (36) is fixedly connected to the inner side of the filter unit (3), a sealing block (37) is slidably engaged to the inner side of the engaging block (36), and a second filter screen (38) is fixedly connected to the inner side of the sealing block (37).
6. A static mixing device for synthesizing a polyurethane chain extender according to claim 1, characterized in that: The rotating unit (45) comprises a connecting groove (451), the connecting groove (451) is sleeved on one end of the water delivery pipe (43), a connecting pipe (452) is rotatably connected inside the connecting groove (451), and one end of the connecting pipe (452) is sleeved with one end of the engagement block (36).
7. A static mixing device for synthesizing a polyurethane chain extender according to claim 6, characterized in that: The inner side of the connecting tube (452) is fixedly connected to a gear 1 (453), one side of the gear 1 (453) is meshingly connected to a gear 2 (454), one side of the gear 2 (454) is fixedly connected to a motor (455), and one side of the motor (455) is fixedly connected to one side of the mixing tube (21).