A polyurethane emulsion filtration device

Abstract

This utility model discloses a polyurethane emulsion filtration device, relating to the field of polyurethane production technology. It includes a filter chamber and a conveying box, with the conveying box welded to the top of the filter chamber. This utility model uses a regulating motor to rotate the drive shaft. On one hand, the driven shaft rotates under the action of the drive pulley, connecting belt, and driven pulley, thereby causing the spiral blades to rotate, facilitating uniform material feeding. On the other hand, the fixed block causes the stirring plate to rotate, thus stirring the polyurethane emulsion inside the filter chamber. This not only prevents sedimentation and stratification, improving filtration efficiency, but also optimizes the flowability of the polyurethane emulsion, allowing it to pass more smoothly through the first and second filter plates, reducing problems such as decreased filtration speed or incomplete filtration caused by excessive viscosity.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane production technology, and in particular to a polyurethane emulsion filtration device. Background Technology

[0002] With the rapid development of the wind power industry, the requirements for the performance of wind turbine blades are becoming increasingly stringent. Polyurethane modified epoxy emulsion for high-modulus wind turbine blade yarn is a material that has emerged in this context to improve the overall performance of high-modulus wind turbine blade yarn. However, the production of polyurethane modified epoxy emulsion for high-modulus wind turbine blade yarn requires the use of a filtration device to facilitate filtration treatment and subsequent operations.

[0003] A polyurethane emulsion filtration device with announcement number CN211383975U includes an inverted filter chamber, a controller, a feed pipe, a support frame, a lifting mechanism, a connecting shaft, and a filter plate. The inverted filter chamber is an inverted cavity structure with an open bottom. The feed pipe is connected to the top of the inverted filter chamber and is equipped with an electrically controlled valve. The support frame is located at the top of the inverted filter chamber. The filter plate is horizontally arranged inside the inverted filter chamber and has a filter hole in its center, which is filled with a filter screen. The top of the connecting shaft is connected to the lifting mechanism. The filter plate and the connecting shaft are detachably connected. The filter plate can be driven by the connecting shaft to protrude from the bottom opening of the inverted filter chamber. The controller is electrically connected to the electrically controlled valve and the lifting mechanism. This technical solution is used to solve the problems of difficult filter screen cleaning and low filtration efficiency in existing polyurethane emulsion filtration devices.

[0004] However, the above-mentioned polyurethane emulsion filtration device still has the following defects in use: In the use of the above-mentioned existing technology, the controller controls the opening of the solenoid valve, and the feed pipe introduces the polyurethane emulsion to be filtered into the inverted filter chamber. After the feed is introduced, the solenoid valve is closed. However, in actual use, the above operation is not convenient for uniform feeding, so the polyurethane emulsion concentrates from the feed pipe into the interior of the filter chamber. This causes the filter plate to be subjected to excessive pressure in some areas, which leads to rapid blockage in those areas, while other areas are not fully utilized, thereby reducing the filtration efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a polyurethane emulsion filtration device to solve the problem mentioned in the background art that existing polyurethane emulsion filtration devices are inconvenient to uniformly feed during use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a polyurethane emulsion filtration device, comprising a filtration chamber and a conveying box, wherein the conveying box is welded to the top of the filtration chamber, and the filtration chamber is an inverted cavity structure with an open bottom;

[0007] A first filter plate is slidably disposed inside the filter chamber, and a second filter plate is slidably disposed inside the filter chamber at the top of the first filter plate. A fixing plate is fixed on one side of both the first and second filter plates, and a limit mechanism is provided on one side of each fixing plate. An adjustment mechanism is provided inside the filter chamber. A feed inlet is fixed on one side of the top of the conveying box, and a guide port is fixed on one side of the bottom of the conveying box, with one end of the guide port extending into the interior of the filter chamber.

[0008] When using a polyurethane emulsion filtration device according to this technical solution, the adjustment mechanism can achieve uniform material feeding during use, thereby improving filtration efficiency.

[0009] Furthermore, the adjustment mechanism includes an adjustment motor, which is located on one side of the filter chamber. A drive shaft is fixed to one side of the adjustment motor, and a fixing block is fixed to the outer side of the drive shaft extending into the filter chamber. Four stirring plates are welded to the outer side of the fixing block. A drive pulley is fixed to the outer side of one end of the fixing block, and a connecting belt is provided on the outer side of the drive pulley. A driven pulley is provided on one side of the connecting belt, and a driven shaft passes through the interior of the driven pulley. Spiral blades are uniformly welded to the outer side of the driven shaft extending into the conveyor box.

[0010] Furthermore, four stirring plates are provided, and the four stirring plates are arranged in a cross shape.

[0011] Furthermore, multiple spiral blades are provided, and the outer edges of the multiple spiral blades are slidably attached to the inner wall of the conveying box.

[0012] Furthermore, the limiting mechanism includes a mounting block, which is disposed on one side of the filter chamber. A baffle is slidably disposed inside the mounting block, and a limiting rod is fixed at the bottom end of the baffle. A pull rod is fixed at the top end of the baffle, and a return spring is evenly wound around the outside of the pull rod.

[0013] Furthermore, two reset springs are provided, and both reset springs are in a stretched state inside the mounting block.

[0014] Furthermore, there are two limiting rods, and each of the two limiting rods has a limiting groove on the outer side of one end, and the limiting groove is opened inside the fixing plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the polyurethane emulsion filtration device not only achieves uniform feeding, but also achieves multi-stage filtration;

[0016] By starting the regulating motor, the drive shaft rotates. On one hand, the driven shaft rotates under the action of the drive pulley, the connecting belt, and the driven pulley, which in turn causes the spiral blades to rotate, thus facilitating uniform material feeding. On the other hand, the fixed block causes the stirring plate to rotate, thereby stirring the polyurethane emulsion inside the filter chamber. This not only prevents sedimentation and stratification, thus improving filtration efficiency, but also optimizes the flowability of the polyurethane emulsion, allowing it to pass more smoothly through the first and second filter plates, reducing the problem of decreased filtration speed or incomplete filtration caused by excessive viscosity.

[0017] By pulling the lever, the limiting rod retracts into the mounting block under the action of the baffle, thus facilitating the pushing of the fixing plate to insert the first and second filter plates into the filter chamber. Then, by releasing the lever, the limiting rod retracts into the fixing plate under the cooperation of the return spring and the baffle, thereby limiting the first and second filter plates. Through the above operation, the first and second filter plates are fixed inside the filter chamber, thereby performing multi-stage filtration of polyurethane emulsion and improving the filtration effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

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

[0021] Figure 3 This is a side view sectional structural diagram of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the adjustment mechanism of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the limiting mechanism of this utility model.

[0024] The reference numerals in the figure are as follows: 1. Filter chamber; 2. First filter plate; 3. Second filter plate; 4. Adjustment mechanism; 401. Stirring plate; 402. Spiral blade; 403. Driven shaft; 404. Connecting belt; 405. Adjustment motor; 406. Driven shaft; 407. Fixed block; 408. Driven pulley; 409. Driven pulley; 5. Conveying box; 6. Feed inlet; 7. Guide inlet; 8. Fixed plate; 9. Limiting mechanism; 901. Mounting block; 902. Pull rod; 903. Return spring; 904. Baffle; 905. Limiting rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Please see Figures 1-5 An embodiment of this utility model is provided: a polyurethane emulsion filtration device, including a filter chamber 1 and a conveying box 5. The top of the filter chamber 1 is welded with the conveying box 5. The filter chamber 1 is an inverted cavity structure with an open bottom. A first filter plate 2 is slidably arranged inside the filter chamber 1, and a second filter plate 3 is slidably arranged inside the filter chamber 1 at the top of the first filter plate 2. A fixing plate 8 is fixed on one side of both the first filter plate 2 and the second filter plate 3, and a limit mechanism 9 is provided on one side of both the fixing plate 8.

[0027] The limiting mechanism 9 includes a mounting block 901, which is disposed on one side of the filter chamber 1. A baffle 904 is slidably disposed inside the mounting block 901. A limiting rod 905 is fixed at the bottom end of the baffle 904, and a pull rod 902 is fixed at the top end of the baffle 904. A return spring 903 is evenly wound around the outside of the pull rod 902.

[0028] There are two return springs 903, and both return springs 903 are in a stretched state inside the mounting block 901;

[0029] There are two limit rods 905. Each of the two limit rods 905 has a limit groove on the outer side of one end. The limit groove is opened inside the fixing plate 8.

[0030] Specifically, such as Figure 2 , Figure 3 , Figure 5As shown, during use, the reset spring 903 pushes the baffle 904 to move downward, thereby allowing the limiting rod 905 to be inserted into the interior of the fixing plate 8, which facilitates the fixing of the first filter plate 2 and the second filter plate 3 inside the filter chamber 1, thereby performing multi-stage filtration of the polyurethane emulsion inside the filter chamber 1 to improve the filtration effect.

[0031] The filter chamber 1 is equipped with an adjustment mechanism 4;

[0032] The adjustment mechanism 4 includes an adjustment motor 405, which is located on one side of the filter chamber 1. A drive shaft 406 is fixed on one side of the adjustment motor 405. A fixing block 407 is fixed on the outer side of the drive shaft 406 extending into the filter chamber 1. Four stirring plates 401 are welded to the outer side of the fixing block 407. A drive pulley 409 is fixed on the outer side of one end of the fixing block 407. A connecting belt 404 is provided on the outer side of the drive pulley 409. A driven pulley 408 is provided on one side of the connecting belt 404. A driven shaft 403 passes through the interior of the driven pulley 408. Spiral blades 402 are evenly welded on the outer side of the driven shaft 403 extending into the conveyor box 5.

[0033] Four stirring plates 401 are provided, and the four stirring plates 401 are arranged in a cross shape;

[0034] Multiple spiral blades 402 are provided, and the outer edges of the multiple spiral blades 402 slide against the inner wall of the conveying box 5.

[0035] A feed inlet 6 is fixed on one side of the top of the conveyor box 5, and a guide port 7 is fixed on one side of the bottom of the conveyor box 5, with one end of the guide port 7 extending into the interior of the filter chamber 1.

[0036] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, during use, the driving shaft 406 rotates by starting the regulating motor 405. This drives the driving pulley 409 to rotate, and the driven shaft 403 rotates under the action of the connecting belt 404 and the driven pulley 408. At the same time, with the cooperation of the spiral blades 402, it is easy to achieve uniform feeding, so as to avoid the polyurethane emulsion from concentrating into the interior of the filter chamber 1 and causing damage to the second filter plate 3. On the other hand, it causes the fixed block 407 to rotate, so that the stirring plate 401 can stir the polyurethane emulsion inside the filter chamber 1, improve its fluidity and prevent it from separating.

[0037] Working Principle: In use, this invention firstly, during the production of the polyurethane emulsion for the high-modulus wind turbine blade yarn, the first filter plate 2 and the second filter plate 3 are inserted into the filter chamber 1 by pushing the fixing plate 8. During insertion, the pull rod 902 is pulled, causing the baffle 904 to rise. Simultaneously, the baffle 904 compresses the return spring 903, causing it to be compressed. Simultaneously, the limiting rod 905 rises until it retracts into the mounting block 901. While continuously pushing the fixing plate 8, the first filter plate 2 and the second filter plate 3 are inserted into the filter chamber 1. Filter plate 2 and second filter plate 3 are fully inserted into the interior of filter chamber 1 and fit against one side of filter chamber 1. Then, pull rod 902 is released, so that the force of compression on return spring 903 disappears, thereby pushing baffle 904 to move downward, and then limit rod 905 is inserted into the interior of fixing plate 8. The above operation facilitates the limiting and fixing of fixing plate 8, and then facilitates the fixing of first filter plate 2 and second filter plate 3 inside filter chamber 1. Since the pore diameters of filter holes on first filter plate 2 and second filter plate 3 are different, multi-stage filtration of polyurethane emulsion inside filter chamber 1 can be performed, thereby improving the filtration effect.

[0038] Then, the high-modulus wind turbine blade yarn polyurethane emulsion is introduced into the conveying box 5 through the feed inlet 6, and the regulating motor 405 is started, causing the drive shaft 406 to rotate. While the drive shaft 406 is rotating, the drive pulley 409 rotates, which in turn causes the connecting belt 404 to rotate, which in turn causes the driven pulley 408 to rotate. While the driven pulley 408 is rotating, the driven shaft 403 rotates, which in turn causes the spiral blade 402 to rotate. This allows the high-modulus wind turbine blade yarn polyurethane emulsion inside the conveying box 5 to be evenly conveyed to the feed inlet 7 to achieve uniform feeding. At the same time, the rotation of the drive shaft 406 also causes the fixed block 407 to rotate, which in turn causes the stirring plate 401 to rotate. The above operation facilitates the stirring of the high-modulus wind turbine blade yarn polyurethane emulsion inside the filter chamber 1, which can prevent the stratification phenomenon and improve the filtration efficiency.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0040] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A polyurethane emulsion filtration device, comprising a filter chamber (1) and a conveying box (5), wherein the top of the filter chamber (1) is welded with the conveying box (5), and the filter chamber (1) is an inverted cavity structure with an open bottom. Its features are: The filter chamber (1) is slidably provided with a first filter plate (2), and the filter chamber (1) at the top of the first filter plate (2) is slidably provided with a second filter plate (3). A fixing plate (8) is fixed on one side of both the first filter plate (2) and the second filter plate (3), and a limiting mechanism (9) is provided on one side of both fixing plates (8). An adjustment mechanism (4) is provided inside the filter chamber (1). A feed inlet (6) is fixed on one side of the top of the conveying box (5), and a guide port (7) is fixed on one side of the bottom of the conveying box (5), and one end of the guide port (7) extends into the interior of the filter chamber (1).

2. The polyurethane emulsion filtration device according to claim 1, characterized in that: The adjustment mechanism (4) includes an adjustment motor (405), and the adjustment motor (405) is located on one side of the filter chamber (1). A drive shaft (406) is fixed on one side of the adjustment motor (405), and a fixing block (407) is fixed on the outer side of the drive shaft (406) extending into the filter chamber (1). Four stirring plates (401) are welded on the outer side of the fixing block (407). A drive pulley (409) is fixed on the outer side of one end of the fixing block (407), and a connecting belt (404) is provided on the outer side of the drive pulley (409). A driven pulley (408) is provided on one side of the connecting belt (404), and a driven shaft (403) passes through the interior of the driven pulley (408). Spiral blades (402) are evenly welded on the outer side of the driven shaft (403) extending into the conveyor box (5).

3. The polyurethane emulsion filtration device according to claim 2, characterized in that: There are four stirring plates (401), which are arranged in a cross shape.

4. The polyurethane emulsion filtration device according to claim 2, characterized in that: Multiple spiral blades (402) are provided, and the outer edges of the multiple spiral blades (402) slide against the inner wall of the conveying box (5).

5. A polyurethane emulsion filtration device according to claim 1, characterized in that: The limiting mechanism (9) includes a mounting block (901), which is located on one side of the filter chamber (1). A baffle (904) is slidably arranged inside the mounting block (901), and a limiting rod (905) is fixed at the bottom end of the baffle (904). A pull rod (902) is fixed at the top end of the baffle (904), and a return spring (903) is evenly wound around the outside of the pull rod (902).

6. A polyurethane emulsion filtration device according to claim 5, characterized in that: Two return springs (903) are provided, and both return springs (903) are in a stretched state inside the mounting block (901).

7. A polyurethane emulsion filtration device according to claim 5, characterized in that: Two limiting rods (905) are provided, and a limiting groove is provided on the outer side of one end of each of the two limiting rods (905). The limiting grooves are all opened inside the fixing plate (8).

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