Additive filtering equipment for producing waterborne polyurethane adhesive

Abstract

The utility model relates to the technical field of waterborne polyurethane adhesive production, in particular to additive filtering equipment for waterborne polyurethane adhesive production, which comprises a filtering tank, a filtering part, a feeding pipeline and a discharging pipeline, the filtering tank comprises an upper cover, a sealing cover and a tank body, the upper cover is pressed at the upper end of the tank body, the sealing cover is fixed at an opening of the tank body, three circular mounting holes for mounting the filtering part are formed in the sealing cover, a feeding hole is further formed in the sealing cover, and a feeding pipeline extends into the tank body from the side surface of the tank body, extends upwards and is connected with the feeding hole; raw materials enter from the feeding pipe, flow out from the feeding hole, rush out from the upper part of the sealing cover, enter the tank body after being filtered by the filtering component, and are discharged from the discharging pipeline at the lower part of the tank body. According to the utility model, a large-particle solid additive is filtered through the filtering equipment, so that the additive can be well fused with a product, and the product quality of a waterborne polyurethane adhesive is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waterborne polyurethane adhesive production, in particular to an additive filtering device for waterborne polyurethane adhesive production. Background Technique

[0002] In the production process of waterborne polyurethane adhesives, the quality and performance of additives play an important role in the final quality of the product. Usually, the additives are in powder form and need to be added to the product to improve its performance. However, some of the additive particles are relatively large. If these large-particle additives cannot be effectively filtered, it will be difficult to fully integrate with the product, thus affecting the quality and stability of the product.

[0003] Traditional filtering devices may have problems such as unsatisfactory filtering effect, inconvenient operation or difficult maintenance when dealing with additives for waterborne polyurethane adhesive production. In order to ensure that the additives can be well integrated with the product and improve the product quality of waterborne polyurethane adhesives, a specially designed filtering device is needed, which can effectively filter out large-particle additives and at the same time has the characteristics of convenient operation and maintenance. Content of the Utility Model

[0004] The purpose of the utility model is to provide an additive filtering device for waterborne polyurethane adhesive production, which can effectively filter out large-particle additives and at the same time has the characteristics of convenient operation and maintenance. Thus, the technical problems in the background technique are solved.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an additive filtering device for waterborne polyurethane adhesive production, including a filtering tank, a filtering component, a feeding pipeline and a discharging pipeline;

[0006] The filtering tank includes an upper cover, a sealing cover and a tank body. The upper cover is pressed on the upper end of the tank body. The sealing cover is fixed at the opening of the tank body. There are three circular mounting holes for installing the filtering component on the sealing cover. There is also a feeding hole on the sealing cover. The feeding pipeline extends into the tank body from the side of the tank body and extends upward to be connected with the feeding hole. The raw material enters from the feeding pipe and flows out from the feeding hole, gushes out from the upper part of the sealing cover and enters the inside of the tank body after being filtered by the filtering component, and is discharged from the discharging pipeline at the lower part of the tank body.

[0007] Further, the filtering component includes a filter net and a filter basket; the outer surface of the filter basket is in a cylindrical structure and has filter holes on the surface; the filter basket is made of stainless steel; the filter basket is installed on the three circular mounting holes provided on the sealing cover; the filter net is in a flexible net bag structure; the main body of the filter net is placed inside the filter basket.

[0008] Furthermore, an auxiliary opening structure is provided on the upper cover; the auxiliary opening structure includes a handwheel, a threaded rod, and a bracket; the bracket is an L-shaped structure, one end of the bracket close to the top of the upper cover is threadedly connected to the threaded rod in the vertical direction, and the other end is rotatably mounted on the side wall of the tank body; the upper end of the threaded rod is fixedly connected to the handwheel, and the lower end of the threaded rod is connected to the top of the upper cover. By rotating the handwheel to drive the threaded rod to rotate, the threaded rod drives the upper cover to move in the vertical direction, thereby opening or closing the upper cover.

[0009] Furthermore, a sealing rubber ring is also provided on the top of the tank body. The sealing rubber ring is placed in the circular groove on the top of the tank body. When the upper cover is buckled down on the tank body, the sealing rubber ring plays a sealing role.

[0010] Furthermore, a circular pressing ring is provided at the opening of the upper part of the filter net. The pressing ring is pressed on the circular opening of the upper part of the filter basket. Three bayonets are arranged in an equilateral triangle distribution around the circular opening of the upper part of the filter basket; a herringbone-shaped metal part is used in cooperation with the three bayonets. The metal part is made by welding three metal rods, and the included angle between adjacent metal rods is 120 degrees; the three metal rods on the metal part are respectively clamped in the three bayonets, pressing the pressing ring on the upper part of the filter net tightly on the circular opening of the upper part of the filter basket.

[0011] Beneficial effects

[0012] The utility model filters large-particle solid additives through a filtering device, enabling the additives to be well integrated with the product, thereby improving the product quality of the waterborne polyurethane adhesive.

[0013] Through the design of the auxiliary opening structure and the sealing structure, the utility model makes it more convenient to inspect and clean the filtering components in the tank body, which helps to maintain the good operating state of the filtering device.

[0014] Through the cooperative design of the pressing ring, bayonets, and metal parts between the filter net and the filter basket, the utility model enhances the sealing performance and stability between the filter net and the filter basket, and improves the filtering effect of the filtering device. Description of the drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the utility model;

[0017] Figure 2 is a schematic structural diagram of the open state of the present utility model;

[0018] Figure 3 is a schematic internal structure diagram of the present utility model;

[0019] Figure 4 is a top view of the present utility model;

[0020] Figure 5 is a schematic diagram of the filter net part of the present utility model.

[0021] In the figure:

[0022] 1. Filter tank, 2. Feed pipe, 3. Discharge pipe, 4. Upper cover, 5. Sealing cover, 6. Tank body, 7. Feed hole, 8. Filter net, 9. Filter basket, 10. Auxiliary opening structure, 11. Handwheel, 12. Threaded rod, 13. Bracket, 14. Sealing rubber ring, 15. Bayonet, 16. Metal part. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0024] To achieve the above object, the present utility model provides the following technical solutions. As Figures 1-5 shown, an additive filtration device for the production of waterborne polyurethane adhesives includes a filter tank 1, a feed pipe 2, a discharge pipe 3 and a filtration component;

[0025] The filter tank 1 is the main structure of the entire filtration device, used to accommodate the filtration component and perform filtration operations; the filter tank 1 includes an upper cover 4, a sealing cover 5 and a tank body 6. The upper cover 4 is pressed on the upper end of the tank body 6, and the sealing cover 5 is fixedly arranged at the opening of the tank body 6. There are three circular mounting holes for installing the filtration component on the sealing cover 5, and there is also a feed hole 7. The feed pipe 2 extends into the tank body 6 from the side of the tank body 6 and extends upward to be connected with the feed hole 7. During use, the raw material enters from the feed pipe 2, flows out from the feed hole 7, surges out from the upper part of the sealing cover 5, passes through the filtration of the filtration component, enters the interior of the tank body 6, and is discharged from the discharge pipe 3 at the lower part of the tank body 6.

[0026] Furthermore, the filtration component includes a filter net 8 and a filter basket 9; the outer surface of the filter basket 9 is a cylindrical structure with filter holes on the surface; it is made of stainless steel material; the filter basket 9 is installed on the three circular mounting holes provided on the sealing cover 5;

[0027] The filter screen 8 is a flexible net bag-like structure; the main body of the filter screen 8 is placed inside the filter basket 9; when in use, the product enters the filter screen 8. Since the product is sticky and heavy, pressure needs to be applied to the product to transport it into the filter screen 8. The strength of the filter screen 8 alone cannot withstand the pressure of the product, so a rigid filter basket 9 is required to support the filter screen 8; after being filtered by the filter screen 8, the product will flow out from the filter holes on the filter basket 9, enter the tank body 6, and finally be discharged from the discharge pipe 3.

[0028] Furthermore, an auxiliary cover opening structure 10 is provided on the upper cover 4; the auxiliary cover opening structure 10 includes a hand wheel 11, a threaded rod 12 and a bracket 13; the bracket 13 is an L-shaped structure, one end of the bracket 13 close to the top of the upper cover 4 is threadedly connected to the threaded rod 12 in the vertical direction, and the other end can be installed on the side wall of the tank body 6 in a horizontally rotatable manner; the upper end of the threaded rod 12 is fixedly connected to the hand wheel 11, and the lower end of the threaded rod 12 is connected to the top of the upper cover 4. By turning the hand wheel 11, the threaded rod 12 is driven to rotate, thereby driving the threaded rod 12 to drive the upper cover 4 to move in the vertical direction, thereby opening or closing the upper cover 4. Since the lower end of the bracket 13 is rotatably connected to the side wall of the tank body 6, the bracket 13 can be rotated in the horizontal direction after the upper cover 4 is opened upward, driving the upper cover 4 to move horizontally, and the upper opening of the tank body 6 is completely exposed to facilitate the inspection and cleaning of the filter components in the tank body 6.

[0029] Furthermore, a circular rubber sealing ring 14 is provided on the top of the tank body 6 . The rubber sealing ring 14 is placed in a circular groove on the top of the tank body 6 . When the upper cover 4 is buckled downward onto the tank body 6 , the rubber sealing ring 14 plays a sealing role.

[0030] Furthermore, a circular ring is provided at the opening of the upper part of the filter screen 8, and the ring is pressed on the circular opening of the upper part of the filter basket 9. The periphery of the circular opening of the upper part of the filter basket 9 is provided with three bayonet holes 15 distributed in an equilateral triangle; the openings of the three bayonet holes 15 are all horizontal and arranged along a rotation direction; a herringbone-shaped metal part 16 is used in conjunction with the three bayonet holes 15, and the metal part 16 is made of three metal rods welded together, and the angles between adjacent metal rods are all 120 degrees; when in use, the three metal rods on the metal part 16 are respectively clamped in the three bayonet holes 15, and the pressure ring on the upper part of the filter screen 8 is pressed tightly against the circular opening of the upper part of the filter basket 9; the sealing and stability between the filter screen 8 and the filter basket 9 can be enhanced.

[0031] Working principle:

[0032] The filtering device of the present application filters large particles in the additive through the coordinated action of the filter screen 8 and the filter basket 9. When the additive enters the filter tank 1 from the feed pipe 2, it flows out through the feed hole 7, surges from the upper part of the sealing cover 5 and enters the filter screen 8. Since the filter screen 8 is a flexible net-shaped structure, and the product is viscous and heavy, a rigid filter basket 9 is required to bear the pressure of the filter screen 8. The product is filtered in the filter screen 8, large particle substances are intercepted in the filter screen 8, and the filtered product seeps out of the filter screen 8 and enters the tank body 6 through the filter holes on the filter basket 9, and finally is discharged from the discharge pipe 3 at the lower part of the tank body 6.

[0033] Usage process:

[0034] First, install the filter basket 9 on the three circular mounting holes on the sealing cover 5, place the filter screen 8 inside the filter basket 9, ensure that the main body of the filter screen 8 is inside the filter basket 9, place the pressing ring at the opening on the upper part of the filter screen 8, and respectively snap the three metal rods of the metal part 16 into the three bayonets 15 around the circular opening on the upper part of the filter basket 9, so that the pressing ring is pressed on the circular opening. Place the sealing rubber ring 14 in the circular groove at the top of the tank body 6. Then press the upper cover 4 on the upper end of the tank body 6 to ensure that the sealing rubber ring 14 plays a sealing role.

[0035] During filtration, first let the raw material to be filtered enter from the feed pipe and flow out through the feed hole 7, and the raw material will surge from the upper part of the sealing cover 5.

[0036] The additive enters the filter screen 8, and after being filtered by the filter screen 8, it flows out through the filter holes on the filter basket 9 and enters the tank body 6.

[0037] Finally, the filtered additive is discharged from the discharge pipe 3 at the lower part of the tank body 6, completing the filtration work of the raw material.

[0038] Finally, the filtered additive is discharged from the discharge pipe at the lower part of the tank body, completing the filtration work of the raw material.

[0039] The embodiments of the present utility model are given for the purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present utility model, and enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. An additive filtration device for the production of aqueous polyurethane adhesives, characterized in that, It includes a filtration tank (1), a filtration component, a feed pipe (2) and a discharge pipe (3). The filtration tank (1) includes an upper cover (4), a sealing cover (5) and a tank body (6). The upper cover (4) is pressed on the upper end of the tank body (6). The sealing cover (5) is fixed at the opening of the tank body (6). There are three circular mounting holes for installing the filtration component on the sealing cover (5). There is also a feed hole (7) on the sealing cover (5). The feed pipe (2) extends into the tank body (6) from the side of the tank body (6) and extends upward to be connected with the feed hole (7). The raw material enters from the feed pipe and flows out from the feed hole (7), gushes out from the upper part of the sealing cover (5), passes through the filtration of the filtration component and then enters the inside of the tank body (6), and is discharged from the discharge pipe (3) at the lower part of the tank body (6).

2. The additive filtration equipment for the production of aqueous polyurethane adhesives according to claim 1, characterized in that, The filtration component includes a filter mesh (8) and a filter basket (9); the outer surface of the filter basket (9) is a cylindrical structure with filter holes on the surface; the filter basket (9) is made of stainless steel; the filter basket (9) is installed on the three circular mounting holes provided on the sealing cover (5); the filter mesh (8) is a flexible net-like structure; the main body of the filter mesh (8) is placed inside the filter basket (9).

3. The additive filtration equipment for the production of aqueous polyurethane adhesives according to claim 1, characterized in that, An auxiliary opening structure (10) is provided on the upper cover (4); the auxiliary opening structure (10) includes a handwheel (11), a threaded rod (12) and a bracket (13); the bracket (13) is an L-shaped structure. One end of the bracket (13) close to the top of the upper cover (4) is threadedly connected to the threaded rod (12) in the vertical direction, and the other end is rotatably installed on the side wall of the tank body (6) horizontally; the upper end of the threaded rod (12) is fixedly connected to the handwheel (11), and the lower end of the threaded rod (12) is connected to the top of the upper cover (4). By rotating the handwheel (11) to drive the threaded rod (12) to rotate, the threaded rod (12) drives the upper cover (4) to move in the vertical direction, so as to open or close the upper cover (4).

4. The additive filtration equipment for the production of aqueous polyurethane adhesives according to claim 1, characterized in that, A sealing rubber ring (14) is also provided on the top of the tank body (6). The sealing rubber ring (14) is placed in the circular groove on the top of the tank body (6). When the upper cover (4) is buckled down on the tank body (6), the sealing rubber ring (14) plays a sealing role.

5. The additive filtration equipment for the production of the aqueous polyurethane adhesive according to claim 2, characterized in that, A circular pressing ring is provided at the opening of the upper part of the filter mesh (8). The pressing ring is pressed on the circular opening of the upper part of the filter basket (9). There are three bayonets (15) distributed in an equilateral triangle around the circular opening of the upper part of the filter basket (9); a herringbone-shaped metal part (16) is used in cooperation with the three bayonets (15). The metal part (16) is made by welding three metal rods, and the included angle between adjacent metal rods is 120 degrees; the three metal rods on the metal part (16) are respectively clamped in the three bayonets (15), and the pressing ring at the upper part of the filter mesh (8) is pressed tightly on the circular opening of the upper part of the filter basket (9).

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