Paper water filtering performance detection device

Abstract

The utility model relates to the technical field of papermaking, in particular to a paper water filtering performance detection device, which comprises a base, a support rod and a control box, the support rod is fixedly connected above the base, the upper end of the support rod is fixedly connected with two fixing clamps, the inner sides of the two fixing clamps are fixedly provided with a water container, and the water container is fixedly connected with the control box. And a funnel is fixedly mounted at the top of the water container. According to the paper water filtering performance detection device, when the water level in the equivalent cylinder reaches the upper limit liquid level of the liquid level detection device, the electric valve is closed, meanwhile, the timing device stops timing, and the displayed time is the water filtering performance of the detected paper. After the detection is finished, a reset button is clicked, the timing device returns to zero again, the drain valve is opened to completely drain water in the measuring cylinder, the drain valve is closed after the water is completely drained, the water filtering reaction time can be quickly and accurately reached by automatically identifying the height of the water level, the situation that manual timing is large in error is reduced, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, specifically to a paper filtration performance testing device. Background Technology

[0002] Coffee filter paper, qualitative filter paper, industrial filter paper, and other types of paper used for filtering liquids often require testing to assess their liquid filtration capabilities.

[0003] For example, the authorization announcement number "CN203720049U" is titled "Pulp Filtration Performance Testing Device," which is suitable for characterizing the filtration properties of ultra-high basis weight specialty paper varieties on the wire section of low-speed paper machines. It has advantages such as relatively simple structure, convenient operation and maintenance, low cost, and low maintenance expenses. However, in existing pulp filtration performance testing devices, we generally fold the paper into a funnel shape, manually pour an equal amount of water, and use a stopwatch to time the test to detect the paper's filtration performance. Manual testing is affected by factors such as the pouring speed and timing reaction, which can lead to significant errors in the test results.

[0004] Meanwhile, when testing the water permeability of paper, a support rod is needed to support the water container at a high position so that the water can flow from high to low. However, the diameter of the support rod is usually relatively small, and the water container at the top will have a certain weight after being filled with water. Therefore, the lower end of the relatively thin support rod needs to bear a relatively large bending force and pressure. During the water permeability test, the support rod is prone to bending or breaking, which affects the use of the pulp water permeability testing device. Utility Model Content

[0005] The purpose of this invention is to solve the problems of inaccurate detection of paper filtration performance and unstable support rod in pulp filtration performance testing devices, and to propose a paper filtration performance testing device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] Design a paper filtration performance testing device, including a base, a support rod and a control box. The support rod is fixedly connected to the top of the base. Two fixing clamps are fixedly connected to the upper end of the support rod. A water container is fixedly installed on the inner side of the two fixing clamps. A funnel is fixedly installed on the top of the water container. A manual valve is installed between the water container and the funnel.

[0008] Preferably, a first water guide pipe is fixedly connected to the bottom of the water container, a movable upper cover is movably provided on the outer side of the side wall of the support rod, an electric valve is fixedly installed on the first water guide pipe, a fixed lower cover is fixedly connected to the lower side wall of the support rod, and screws are threadedly connected to both sides of the fixed lower cover and the movable upper cover.

[0009] Preferably, the bottom of the fixed bottom cover is fixedly connected to a second water guide pipe, and the other end of the second water guide pipe is fixedly connected to a measuring cylinder. The measuring cylinder is fixedly installed on the upper surface of the base, and a liquid level detection device is fixedly installed inside the measuring cylinder.

[0010] Preferably, a drain valve is fixedly connected to the bottom of the measuring cylinder, and the other end of the drain valve is fixedly opened on the outside of the base.

[0011] Preferably, the control box is fixedly mounted on the base, a timing device is fixedly connected to the front end of the outer wall of the control box, a start button is fixedly connected to one side of the outer wall of the control box, a reset button is fixedly connected to the other side of the outer wall of the control box, and the other end of the liquid level detection device is connected to the top of the control box.

[0012] Preferably, two pads are movably connected to the top of the base, and fixing screws are threaded to the inner sides of the two pads. The ends of the two fixing screws are threaded to the top of the base. Push plates are fixedly connected to the inner sides of the two pads, and pressing plates are fixedly connected to the other ends of the two push plates. The inner sides of the two pressing plates are movably abutted against the bottom sidewall of the support rod.

[0013] This invention provides a paper filtration performance testing device, which has the following advantages: When the water level in the measuring cylinder reaches the upper limit of the liquid level detection device, the electric valve closes and the timing device stops timing. The time displayed at this point is the filtration performance of the paper being tested. After the test, clicking the reset button resets the timing device to zero. The drain valve is then opened to drain all the water from the measuring cylinder. After the water is drained, the drain valve is closed. By automatically recognizing the water level, the filtration reaction time can be quickly and accurately determined, reducing the large errors caused by manual timing and improving the accuracy of the test results.

[0014] The pad is made of stainless steel and fits snugly against the base. Its position is secured by rotating the screws on both sides. The ends of the two screws are threaded to the top of the base. The pad pushes the vertical push plate from both sides towards the support rod. The push plate also pushes the end pressure plates against the lower sides of the support rod. The pressure plates on both sides provide support and stability for the support rod. This allows the relatively slender support rod to form a more stable and robust connection with the base. The weight of the water container prevents the support rod from collapsing or breaking, thus improving the effectiveness of the paper filtration performance testing device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 for Figure 1 Top view of the middle top surface;

[0017] Figure 3 for Figure 1 Enlarged diagram of part A in the middle;

[0018] Figure 4 for Figure 1 Enlarged diagram of section B;

[0019] Figure 5 for Figure 1 Enlarged diagram of section C;

[0020] Figure 6 for Figure 1 Enlarged schematic diagram of part D in the middle.

[0021] In the diagram: 1. Funnel, 2. Manual valve, 3. Water container, 4. Fixing clamp, 5. Support rod, 6. First water guide pipe, 7. Electric valve, 8. Movable upper cover, 9. Fixed lower cover, 10. Screw, 11. Measuring cylinder, 12. Liquid level detection device, 13. Control box, 14. Base, 15. Second water guide pipe, 16. Timing device, 17. Start button, 18. Reset button, 19. Drain valve, 20. Pad, 21. Fixing screw, 22. Push plate, 23. Squeeze plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings: Example 1

[0023] Please see Figures 1-6 In this embodiment, a paper filtration performance testing device includes a base 14, a support rod 5, and a control box 13. The support rod 5 is fixedly connected to the top of the base 14 and welded to the top of the base 14 for fixation. Two fixing clips 4 are fixedly connected to the upper end of the support rod 5. The fixing clips 4 fix a stainless steel water container 3 to the top of the support rod 5. The water container 3 is fixedly installed on the inner side of the two fixing clips 4. A funnel 1 is fixedly installed on the top of the water container 3. The funnel 1 can replenish water to the water container 3. A manual valve 2 is installed between the water container 3 and the funnel 1. The water in the water container 3 can be controlled to flow out along the lower first water guide pipe 6 by the manual valve 2.

[0024] The bottom of the water container 3 is fixedly connected to the first water guide pipe 6. The side wall of the support rod 5 is movably provided with a movable upper cover 8. An electric valve 7 is fixedly installed on the first water guide pipe 6. A fixed lower cover 9 is fixedly connected to the lower side wall of the support rod 5. When testing the water filtration performance of the paper, it is confirmed that the liquid in the measuring cylinder 11 is completely emptied while the drain valve 19 is kept closed and the timing device 16 is reset to zero. Then, the paper of the corresponding size is cut and placed on the upper end of the fixed lower cover 9. The nut on the screw 10 is turned to press the movable upper cover 8 completely onto the paper. At this time, the manual valve 2 is kept open. The fixed lower cover 9 and the movable upper cover 8 are threadedly connected to the screw 10 on both sides.

[0025] The bottom of the fixed bottom cover 9 is fixedly connected to a second water guide pipe 15. The other end of the second water guide pipe 15 is fixedly connected to a measuring cylinder 11. The measuring cylinder 11 is fixedly installed on the upper surface of the base 14. A liquid level detection device 12 is fixedly installed inside the measuring cylinder 11. A drain valve 19 is fixedly connected to the bottom of the measuring cylinder 11. The other end of the drain valve 19 is fixedly opened on the outside of the base 14. Water flows from the water container 3 through the first water guide pipe 6 at the bottom into the space between the paper being tested and the movable top cover 8.

[0026] The water filtered from the paper flows between the paper being tested and the fixed bottom cover 9, and then flows into the measuring cylinder 11 through the second water guide pipe 15. When the water level in the measuring cylinder 11 reaches the upper limit of the liquid level detection device 12, the electric valve 7 closes and the timing device 16 stops timing. The time displayed at this time is the water filtration performance of the paper being tested. After the test is completed, the timing device is reset to zero by clicking the reset button 18, and the drain valve 19 is opened to drain all the water in the measuring cylinder 11. After the water is drained, the drain valve 19 is closed.

[0027] The control box 13 is fixedly installed on the base 14. A timing device 16 is fixedly connected to the front end of the outer wall of the control box 13. A start button 17 is fixedly connected to one side of the outer wall of the control box 13. A reset button 18 is fixedly connected to the other side of the outer wall of the control box 13. The other end of the liquid level detection device 12 is connected to the top of the control box 13.

[0028] Working principle:

[0029] A paper filtration performance testing device is used to test the filtration performance of the produced paper within a specified time.

[0030] When testing the water filtration performance of paper, ensure that the liquid in the measuring cylinder 11 is completely drained while the drain valve 19 remains closed and the timing device 16 is reset to zero.

[0031] Then cut the paper to the appropriate size and place it on the top of the fixed bottom cover 9. Tighten the nut on the screw 10 to completely press the movable top cover 8 onto the paper. At this time, the manual valve 2 remains open. Click the start button 17 to open the electric valve 7 and the timing device 16 starts timing.

[0032] Water flows from the water container 3 into the space between the paper to be tested and the movable upper cover 8 through the first water guide pipe 6 at the bottom. The water filtered by the paper flows into the space between the paper to be tested and the fixed lower cover 9, and then flows into the measuring cylinder 11 through the second water guide pipe 15.

[0033] When the water level in the measuring cylinder 11 reaches the upper limit of the liquid level detection device 12, the electric valve 7 closes and the timing device 16 stops timing. The time displayed at this time is the water filtration performance of the paper being tested. After the test is completed, click the reset button 18 to reset the timing device to zero, open the drain valve 19 to drain all the water in the measuring cylinder 11, and close the drain valve 19 after the water is drained. By automatically recognizing the water level height, the reaction time required for water filtration testing can be quickly and accurately achieved, reducing the problem of large errors in manual timing and improving the accuracy of the test results.

[0034] Finally, unscrew the nut on the screw 10 to separate the movable top cover 8 from the fixed bottom cover 9, and then take out the paper to be tested. Example 2

[0035] Please see Figures 1-6 In this embodiment, a paper filtration performance testing device further includes two pads 20 movably connected above the base 14. The pads 20 are made of stainless steel and are attached to the base 14. The position of the pads 20 can be fixed by rotating the fixing screws 21 on both sides. The inner sides of the two pads 20 are threaded with fixing screws 21, and the ends of the two fixing screws 21 are threadedly connected to the top of the base 14.

[0036] The pad 20 pushes the vertical push plate 22 from both sides toward the support rod 5. The push plate 22 also pushes the end pressing plate 23 against the lower end of the support rod 5. The pressing plates 23 on both sides play a role in supporting and stabilizing the support rod 5. The push plate 22 is fixedly connected to the inner side of the two pads 20, and the pressing plate 23 is fixedly connected to the other end of the two push plates 22. The inner side of the two pressing plates 23 is movable and pressed against the bottom side wall of the support rod 5.

[0037] Working principle:

[0038] The pad 20 is made of stainless steel and fits on top of the base 14. The position of the pad 20 can be fixed by rotating the fixing screws 21 on both sides. The ends of the two fixing screws 21 are threaded to the top of the base 14. The pad 20 pushes the vertical push plate 22 from both sides toward the support rod 5. The push plate 22 can also push the end squeezing plate 23 against the lower ends of the support rod 5. The squeezing plates 23 on both sides play a role in supporting and stabilizing the support rod 5. In this way, the relatively slender support rod 5 can form a more stable and solid reinforced connection with the base 14. The weight of the water container 3 makes it less likely for the support rod 5 to collapse or break, thus improving the effectiveness of the paper filtration performance testing device.

[0039] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A paper filterability detection device, comprising a base (14), a support rod (5) and a control box (13), the support rod (5) is fixedly connected above the base (14), characterized in that: The upper end of the support rod (5) is fixedly connected with two fixed clamps (4), the inner side of the two fixed clamps (4) is fixedly installed with a water container (3), the top of the water container (3) is fixedly installed with a funnel (1), and a manual valve (2) is installed between the water container (3) and the funnel (1); The bottom of the water container (3) is fixedly connected with a first water guide pipe (6), the outer side of the side wall of the support rod (5) is movably provided with a movable upper cover (8), the first water guide pipe (6) is fixedly installed with an electric valve (7), the bottom of the side wall of the support rod (5) is fixedly connected with a fixed lower bottom cover (9), and the two sides of the fixed lower bottom cover (9) and the movable upper cover (8) are threadedly connected with a screw rod (10); The bottom of the fixed lower bottom cover (9) is fixedly communicated with a second water guide pipe (15), the other end of the second water guide pipe (15) is fixedly communicated with a measuring cylinder (11), the measuring cylinder (11) is fixedly installed on the upper surface of a base (14), and a liquid level detection device (12) is fixedly installed in the measuring cylinder (11); The bottom of the measuring cylinder (11) is fixedly connected with a drain valve (19), and the other end of the drain valve (19) is fixedly provided on the outer side of the base (14); The control box (13) is fixedly installed on the base (14), the outer wall of the control box (13) is fixedly connected with a timing device (16) at the front end, one side of the outer wall of the control box (13) is fixedly connected with a start button (17), the other side of the outer wall of the control box (13) is fixedly connected with a reset button (18), and the other end of the liquid level detection device (12) is connected with the top end of the control box (13).

2. The paper drainage detecting apparatus according to claim 1, characterized by: The top of the base (14) is movably connected with two pads (20), the inner side of the two pads (20) is threadedly connected with fixed screws (21), the ends of the two fixed screws (21) are threadedly connected with the top end of the base (14), the inner side of the two pads (20) is fixedly connected with push plates (22), the other end of the two push plates (22) is fixedly connected with extrusion plates (23), and the inner side of the two extrusion plates (23) is movably abutted against the bottom end side wall of the support rod (5).

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