A filtration rate detection device for a foamed ceramic filter

Abstract

The utility model discloses a kind of filtering rate detection equipment for foamed ceramic filter, it is related to foamed ceramic filter detection equipment technical field.Filtering rate detection equipment includes support, charging container, shielding device, driving device, filter loading device, receiving container and sliding device;Filter loading device is slidably installed in support by sliding device, charging container is used to contain simulation fluid, and filter loading device is used to load foamed ceramic filter;Shielding device is installed at the bottom of simulation fluid discharge opening of charging container, and driving device is used to drive shielding device to reciprocate in horizontal direction, so that shielding device shields or opens simulation fluid discharge opening.The utility model is used for the filtering rate detection equipment of foamed ceramic filter, can simulate the application scenario of foamed ceramic filter in casting filtration, obtain the filtering rate of foamed ceramic filter, overcome the limitation of indirectly judging filtering rate by through-hole rate of traditional drainage method.

Description

Technical Field

[0001] This utility model relates to the technical field of foam ceramic filter testing equipment, and in particular to a filtration rate testing device for foam ceramic filters. Background Technology

[0002] Foam ceramic filters for casting are porous ceramics prepared using a precursor impregnation method. They possess a three-dimensional network structure and are used for purifying and filtering molten copper, cast iron, carbon steel, and other high-temperature alloys. They can efficiently filter impurities such as non-metallic particles, slag, and refractory fragments as small as micrometers, effectively improving the metallographic structure of castings and increasing the yield of high-quality castings. Foam ceramic filter materials exhibit good chemical stability, do not react with molten alloys, and possess excellent mechanical properties and thermal shock resistance, making them the preferred material for high-temperature filter components.

[0003] When foam ceramic filters are used in the casting filtration process, specific flow rate and time requirements must be met. This necessitates ensuring the smooth passage of molten copper, iron, and other casting liquids while minimizing casting time. Therefore, the filtration rate of foam ceramic filters needs to be measured at the factory to ensure the casting efficiency meets standards. Currently, most foam ceramic filter manufacturers struggle to achieve high-temperature casting conditions for direct measurement of filtration rates, making it difficult to simulate real-world usage scenarios. Consequently, most manufacturers indirectly measure the filtration rate by measuring the porosity of the foam ceramic filter using the drainage method. Generally, a higher porosity is considered to indicate a higher filtration rate. However, in practical applications, the porosity of foam ceramic filters cannot fully reflect the filtration rate because it only reflects the proportion of the total volume of connected pores, neglecting many key factors: uneven pore distribution leads to poor fluid flow, and even if the porosity meets the standard, the filtration rate may decrease; morphological characteristics such as pore size, channel tortuosity, and pore wall smoothness significantly affect fluid resistance and path, and these differences will result in different filtration rates for foam ceramic filters at the same porosity. Therefore, relying solely on measuring the porosity of foam ceramic filters is insufficient to accurately measure their actual filtration rate, and consequently, it is difficult to ensure the casting efficiency of foam ceramic filters during actual casting. Therefore, developing a device that can easily simulate the casting and filtration process of foam ceramic filters and measure their filtration rate is of great significance. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to propose a filtration rate detection device for foam ceramic filters, which can simulate the application scenario of foam ceramic filters in casting filtration, obtain the filtration rate of foam ceramic filters, and overcome the limitation of the traditional drainage method of indirectly judging the filtration rate by the porosity.

[0005] To solve the above-mentioned technical problems, this utility model provides a filtration rate detection device for foam ceramic filters, including a support, a loading container, a shielding device, a driving device, a filter loading device, a receiving container, and a sliding device;

[0006] The loading container, the shielding device, the filter loading device, and the receiving container are installed on the bracket from top to bottom, and the filter loading device is slidably installed on the bracket via the sliding device. The loading container is used to hold simulated fluid, and the filter loading device is used to load foam ceramic filters.

[0007] The bottom of the loading container is provided with a simulated fluid discharge port, and the top and bottom of the filter loading device are respectively provided with a simulated fluid inlet and a simulated fluid outlet. The positions of the simulated fluid discharge port, the simulated fluid inlet and the simulated fluid outlet are corresponding, and the receiving container is located below the simulated fluid outlet.

[0008] The shielding device is installed at the bottom of the simulated fluid discharge port, and the driving device is installed on the bracket. One end of the driving device is connected to the shielding device. The driving device is used to drive the shielding device to reciprocate in the horizontal direction, so that the shielding device can block or open the simulated fluid discharge port.

[0009] As an improvement to the above technical solution, the filter loading device has a filter mounting cavity for installing the foam ceramic filter, and the simulated fluid inlet and the simulated fluid outlet are respectively connected to the filter mounting cavity; the size of the simulated fluid inlet is adapted to the size of the foam ceramic filter.

[0010] As an improvement to the above technical solution, the filtration rate detection device for the foam ceramic filter further includes a weight detection device, which is installed at the bottom of the receiving container;

[0011] The weight detection device is connected to an external control module. The weight detection device is used to detect the weight of the receiving container. When the weight detection device detects an increase in the weight of the receiving container, it transmits a weight increase signal to the control module. The control module starts timing and records the initial time. When the weight detection device detects that the weight of the receiving container has stabilized, it transmits a weight stabilization signal to the control module. The control module stops timing and records the end time.

[0012] The control module is signal-connected to an external display device, and the control module transmits the acquired data to the display device.

[0013] As an improvement to the above technical solution, the bracket includes a bracket body, a first mounting platform, a second mounting platform, and a fixing plate, wherein the first mounting platform and the second mounting platform are respectively horizontally mounted on the bracket body from top to bottom;

[0014] The loading container is installed on the first installation platform;

[0015] The fixing plate is fixedly installed above the second mounting platform, and a movable mounting groove for installing the filter loading device is formed between the fixing plate and the second mounting platform. The filter loading device is slidably installed in the movable mounting groove.

[0016] The shielding device is movably installed between the fixed plate and the loading container;

[0017] The fixing plate is located in the through-hole of the first simulated fluid, and the second mounting platform is located in the through-hole of the second simulated fluid. The positions of the first simulated fluid through-hole and the second simulated fluid through-hole correspond to the positions of the simulated fluid discharge port.

[0018] As an improvement to the above technical solution, the bracket further includes several limiting members. The limiting members are fixedly installed above the fixed plate or on both sides of the shielding device, and the limiting members are set away from the loading container. A shielding device movable groove is formed between the limiting members and the fixed plate. The height of the shielding device movable groove corresponds to the thickness of the shielding device, and the shielding device is movably installed in the shielding device movable groove.

[0019] As an improvement to the above technical solution, the shielding device is provided with a connecting plate on the side near the driving device. The fixed end of the driving device is installed on the main body of the bracket, and the movable end of the driving device is fixedly connected to the connecting plate. The movable end of the driving device extends or retracts, driving the shielding device to reciprocate within the movable groove of the shielding device, so that the shielding device shields or opens the simulated fluid discharge port.

[0020] As an improvement to the above technical solution, mounting plates are respectively provided on the outer sides of the filter loading device, the top of the mounting plate is fixedly connected to the fixing plate, and the bottom of the mounting plate is fixedly connected to the second mounting platform.

[0021] The sliding device is provided between the mounting plate and the filter loading device. The sliding device includes a first slide rail and a second slide rail that slide together. The first slide rail is installed on the side of the mounting plate facing the filter loading device, and the second slide rail is installed on the outer side wall of the filter loading device. The first slide rail and the second slide rail are slidably connected.

[0022] As an improvement to the above technical solution, the weight detection device is a weight sensor or a pressure sensor.

[0023] As an improvement to the above technical solution, the foam ceramic filter is circular or square in shape.

[0024] The present invention offers the following advantages: This embodiment provides a filtration rate testing device for foam ceramic filters. By setting up a loading container to hold simulated fluid, and utilizing the loading container, filter loading device, and receiving container arranged sequentially from top to bottom, a fluid flow path simulating the actual casting and filtration process is constructed. The simulated fluid flows out from the simulated fluid outlet of the loading container, is filtered by the foam ceramic filter loaded in the filter loading device, and then enters the receiving container. This process directly simulates the actual scenario of molten copper, molten iron, etc., passing through the foam ceramic filter. Using simulated fluid for testing eliminates the need for high-temperature casting conditions, thus achieving simulation of actual usage scenarios. By driving the shielding device to open or block the simulated fluid inlet, the start and stop times of the simulated fluid flow can be controlled. Combined with the collection of the filtered simulated fluid by the receiving container, the amount of simulated fluid passing through the foam ceramic filter per unit time can be directly calculated by recording the time it takes for a fixed amount of simulated fluid to pass through the foam ceramic filter; or the filtration rate of the foam ceramic filter can be directly obtained by recording the mass of the simulated fluid passing through the foam ceramic filter per unit time, overcoming the limitation of the traditional drainage method that indirectly judges the filtration rate through the porosity. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a filtration rate detection device for a foam ceramic filter in one embodiment of the present invention;

[0026] Figure 2 yes Figure 1 Enlarged view of point S in the middle;

[0027] Figure 3 yes Figure 1 The diagram shown illustrates the structure of a filtration rate testing device for foam ceramic filters during filtration testing.

[0028] In the diagram: 1. Support frame; 2. Loading container; 3. Shielding device; 4. Drive device; 5. Filter loading device; 6. Receiving container; 7. Sliding device; 9. Simulated fluid; 10. Foam ceramic filter; 11. Support body; 12. First mounting platform; 13. Second mounting platform; 14. Fixing plate; 15. Limiting component; 16. Movable mounting groove; 17. Shielding device movable groove; 18. Mounting plate; 21. Simulated fluid discharge port; 31. Connecting plate; 51. Simulated fluid inlet; 52. Simulated fluid outlet; 53. Filter mounting cavity; 71. First slide rail; 72. Second slide rail; 81. Weight detection device; 82. Control module; 83. Display device; 131. Second simulated fluid through hole; 141. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" 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 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.

[0032] like Figures 1 to 3 As shown, this embodiment provides a filtration rate detection device for foam ceramic filters, including a support 1, a loading container 2, a shielding device 3, a driving device 4, a filter loading device 5, a receiving container 6, and a sliding device 7.

[0033] The loading container 2, the shielding device 3, the filter loading device 5 and the receiving container 6 are installed on the support 1 from top to bottom, and the filter loading device 5 is slidably installed on the support 1 via the sliding device 7. The loading container 2 is used to hold the simulated fluid 9, and the filter loading device 5 is used to load the foam ceramic filter 10.

[0034] The bottom of the loading container 2 is provided with a simulated fluid discharge port 21. The top and bottom of the filter loading device 5 are respectively provided with a simulated fluid inlet 51 and a simulated fluid outlet 52. The simulated fluid discharge port 21, the simulated fluid inlet 51 and the simulated fluid outlet 52 are positioned correspondingly. The receiving container 6 is located below the simulated fluid outlet 52, so that the simulated fluid 9 in the loading container 2 flows out from the simulated fluid discharge port 21 and flows into the foam ceramic filter 10 for filtration through the simulated fluid inlet 51. After filtration, it flows into the receiving container 6 through the simulated fluid outlet 52 and receives the simulated fluid filtered by the foam ceramic filter 10.

[0035] The shielding device 3 is installed at the bottom of the simulated fluid discharge port 21, and the driving device 4 is installed on the bracket 1. One end of the driving device 4 is connected to the shielding device 3. The driving device 4 is used to drive the shielding device 3 to reciprocate in the horizontal direction, so that the shielding device 3 can shield or open the simulated fluid discharge port 21.

[0036] This embodiment provides a filtration rate testing device for foam ceramic filters. A loading container 2 holds simulated fluid 9. The loading container 2, filter loading device 5, and receiving container 6, arranged sequentially from top to bottom, construct a fluid flow path simulating the actual casting and filtration process. The simulated fluid 9 flows out from the simulated fluid outlet 21 of the loading container 2, is filtered by the foam ceramic filter 10 loaded in the filter loading device 5, and then enters the receiving container 6. This process directly simulates the actual scenario of molten copper, molten iron, or other casting liquids passing through the foam ceramic filter. By using simulated fluid for testing, it eliminates the need for high-temperature casting conditions, thus simulating real-world usage scenarios. By driving the shielding device 3 to open or block the simulated fluid discharge port 21 through the driving device 4, the start and stop times of the simulated fluid 9 can be controlled. Combined with the collection of the filtered simulated fluid 9 by the receiving container 6, and by recording the time it takes for a fixed amount of simulated fluid to pass through the foam ceramic filter 10, the amount of simulated fluid passing through the foam ceramic filter 10 per unit time can be directly calculated according to the formula: filtration rate = mass of fluid passing through the filter / time of fluid passing through the filter. Alternatively, by recording the mass (or volume) of simulated fluid passing through the foam ceramic filter 10 per unit time, the amount of simulated fluid passing through the foam ceramic filter 10 per unit time can be directly measured, thereby directly obtaining the filtration rate of the foam ceramic filter 10, overcoming the limitation of the traditional drainage method of indirectly judging the filtration rate through the porosity.

[0037] Specifically, the time it takes for a fixed amount of simulated fluid to pass through the foam ceramic filter 10 can be recorded manually, and the mass of the simulated fluid passing through the foam ceramic filter 10 per unit time can be recorded manually by weighing. Alternatively, a timing device and a weight detection device 81 can be set up to record the time it takes for a fixed amount of simulated fluid to pass through the foam ceramic filter 10 and the mass of the simulated fluid passing through the foam ceramic filter 10 per unit time. The timing device and weight detection device 81 can be existing devices, as long as they achieve the timing and weight detection effects.

[0038] Furthermore, the filter loading device 5 is slidably mounted on the bracket 1 via the sliding device 7, facilitating quick replacement of the foam ceramic filter sample. Since the simulation process encompasses key factors affecting the filtration rate, such as uneven pore distribution, pore size differences, and pore morphology, the measurement results comprehensively reflect the combined effects of these factors on fluid flow. Therefore, the filtration rate measured by this device is closer to the actual situation in the casting process, accurately measuring the actual filtration rate of the foam ceramic filter and providing a reliable basis for evaluating its casting efficiency in the actual casting process.

[0039] It is worth noting that fine sand or a room-temperature flowing substance with a certain degree of fluidity can be used as a simulated fluid to test the filtration rate of the foam ceramic filter 10, thereby avoiding the use of high-temperature molten copper, molten iron, or other metal casting liquids. In some embodiments, quicksand can be used as a simulated fluid. Quicksand refers to sand that can flow. Naturally formed quicksand, such as quicksand formed at the seaside or in the desert, can be used, as it has good fluidity. Artificial quicksand, such as the quicksand commonly used in hourglasses, can also be used.

[0040] Specifically, filtration rate is an indicator describing the total amount of fluid passing through the entire filter per unit time. It refers to the total volume (or mass) of fluid passing through the filter per unit time, and the unit is usually m³. 3 / h, L / min, etc. These are mainly used to measure the actual processing capacity of a filter. In processes such as molten metal purification, a suitable filter must be selected based on the total flow rate required for production to ensure that the filtration rate meets the standards.

[0041] In summary, the filtration rate testing equipment for foam ceramic filters described in this embodiment can simulate actual casting scenarios without requiring high-temperature casting test conditions, and can directly measure the filtration rate of foam ceramic filters. This effectively solves the problem that it is difficult to accurately measure the filtration rate by relying solely on the porosity, and is of great significance for improving the quality control level of foam ceramic filters and the accuracy of casting efficiency assessment.

[0042] In one embodiment, the filter loading device 5 has a filter mounting cavity 53 for mounting the foam ceramic filter 10. A simulated fluid inlet 51 and a simulated fluid outlet 52 are respectively connected to the filter mounting cavity 53. The size of the simulated fluid inlet 51 is adapted to the size of the foam ceramic filter 10. When installing or replacing the foam ceramic filter 10, the filter loading device 5 is pulled out by the sliding device 7, positioning it on one side of the loading container 2. That is, the filter loading device 5 is not located below the loading container 2 at this time, allowing the tested foam ceramic filter 10 to be directly removed through the simulated fluid inlet 51. Other foam ceramic filters 10 to be tested are then placed into the filter mounting cavity 53 through the simulated fluid inlet 51, facilitating the installation and replacement of the foam ceramic filters 10. The filter loading device 5, loaded with the new foam ceramic filter 10, is then moved back to below the loading container 2, and the simulated fluid inlet 51 is aligned with the simulated fluid discharge port 21, allowing the new foam ceramic filter 10 to be tested.

[0043] In one embodiment, the filtration rate detection device for the foam ceramic filter further includes a weight detection device 81, which is installed at the bottom of the receiving container 6.

[0044] The weight detection device 81 is connected to the external control module 82 via a signal connection, which can be wireless or wired. The weight detection device 81 detects the weight of the receiving container 6. When the weight detection device 81 detects an increase in the weight of the receiving container 6, it transmits the weight increase signal to the control module 82. The control module 82 starts timing and records the initial time. When the weight detection device 81 detects that the weight of the receiving container 6 has stabilized, it transmits the weight stabilization signal to the control module 82. The control module 82 stops timing and records the end time. Specifically, the control module is equipped with a timer to achieve the timing effect.

[0045] The control module 82 is signal-connected to an external display device 83. The control module 82 transmits the acquired data to the display device 83, thereby displaying data such as weight and time on the display device 83. Specifically, the display device can be a computer or a tablet, but is not limited to these.

[0046] This embodiment, by installing a weight detection device 81 at the bottom of the receiving container 6 and connecting the weight detection device 81 to the control module 82, can automatically record the start and end times of the detection, thus achieving automatic timing. This reduces manual operation and detection errors. Furthermore, by connecting the control module 82 to the display device 83, the data detected by the control module 82 can be displayed on the display device 83. Using existing software processing, a weight-time curve can be obtained, thus determining the time it takes for a certain weight of simulated fluid to pass through the foam ceramic filter. Further calculations can then yield the filtration rate of the foam ceramic filter.

[0047] It should be noted that the drive device 4 in this embodiment can be electrically connected to the control module 82.

[0048] It should be noted that in this embodiment, the modification of the prior art by this specific implementation lies in the hardware part. At the same time, the control module 82 involved transmits the obtained data to the display device 83 and displays data such as weight and time on the display device 83. This is a simple program that can be easily implemented by those skilled in the art using existing computer program development platforms, well-known programming methods or existing computer software.

[0049] In one embodiment, the bracket 1 includes a bracket body 11, a first mounting platform 12, a second mounting platform 13, and a fixing plate 14. The first mounting platform 12 and the second mounting platform 13 are respectively horizontally mounted on the bracket body 11 from top to bottom.

[0050] The loading container 2 is installed on the first mounting platform 12. The loading container 2 can be fixedly installed on the first mounting platform 12 by means of fixed installation (such as welding), or it can be detachably installed on the first mounting platform 12 by setting connecting parts.

[0051] The fixing plate 14 is fixedly installed above the second mounting platform 13. A movable mounting groove 16 for installing the filter loading device 5 is formed between the fixing plate 14 and the second mounting platform 13. The filter loading device 5 is slidably installed in the movable mounting groove 16. This allows the filter loading device 5 to be moved to the loading container 2 for simulated filtration testing. The filter loading device 5 can also be moved to the outside of the loading container 2 for easy replacement of the foam ceramic filter 10.

[0052] The shielding device 3 is movably installed between the fixed plate 14 and the loading container 2, so that the shielding device 3 can shield or open the simulated fluid discharge port 21 of the loading container 2;

[0053] The fixing plate 14 is located at the through first simulated fluid through hole 141, and the second mounting platform 13 is located at the through second simulated fluid through hole 131. The positions of the first simulated fluid through hole 141 and the second simulated fluid through hole 131 correspond to the positions of the simulated fluid discharge port 21, so that when the simulated fluid 9 comes out of the simulated fluid discharge port 21, it can pass through the foam ceramic filter 10 for simulated filtration test, and after filtration, it can fall into the receiving container 6 through the second simulated fluid through hole 131. The weight of the receiving container 6 can be detected by the weight detection device 81, and the timing can be performed by the control module 82.

[0054] Preferably, the sizes of the simulated fluid inlet 2, the first simulated fluid through-hole 141, the second simulated fluid through-hole 131, and the simulated fluid outlet 52 correspond to each other; or the size of the simulated fluid inlet 2 is slightly smaller than the sizes of the first simulated fluid through-hole 141, the second simulated fluid through-hole 131, and the simulated fluid outlet 52, so that the test results are more accurate.

[0055] In one embodiment, the bracket 1 further includes several limiting members 15. The limiting members 15 are fixedly installed above the fixing plate 14 or on both sides of the shielding device 3, and are positioned to avoid the loading container 2. A shielding device movable groove 17 is formed between the limiting members 15 and the fixing plate 14. The height of the shielding device movable groove 17 corresponds to the thickness of the shielding device 3, and the shielding device 3 is movably installed within the shielding device movable groove 17. The shielding device movable groove 17 formed by the limiting members 15 and the fixing plate 14 provides a precise installation position and moving track for the shielding device 3. Because the height of the shielding device movable groove 17 corresponds to the thickness of the shielding device 3, and limiting members 15 are also provided on both sides of the shielding device 3, it can ensure that the shielding device 3 moves stably within the movable groove, maintaining the correct position during filtration rate detection, avoiding deviation or shaking, thereby ensuring the accuracy and stability of the detection results.

[0056] In one embodiment, the blocking device 3 is a blocking plate, and the limiting member 15 is a limiting strip.

[0057] Preferably, when the shielding device 3 moves to the bottom of the filling container 2, the top surface of the shielding device 3 contacts the bottom surface of the filling container 2, which can better shield the simulated fluid discharge port 21 and prevent the simulated fluid from leaking out from the gap between them.

[0058] In one embodiment, the shielding device 3 has a connecting plate 31 on the side near the driving device 4. The fixed end of the driving device 4 is mounted on the support body 11, and the movable end of the driving device 4 is fixedly connected to the connecting plate 31. The movable end of the driving device 4 extends or retracts, driving the shielding device 3 to reciprocate within the shielding device movable groove 17, thereby shielding or opening the simulated fluid discharge port 21. In one embodiment, the driving device 4 may be a cylinder, such as a telescopic cylinder, but is not limited to this.

[0059] In other embodiments, the drive device 4 can also be driven by a drive device such as a linear motor. When the drive device 4 is a linear motor, the linear motor can be horizontally mounted on the top of the fixed plate 14 and positioned away from the first simulated fluid through hole 141. The sliding block of the linear motor is fixedly connected to the side wall of the blocking device 3, thereby driving the blocking device 3 to move horizontally. When the blocking device 3 moves to below the simulated fluid discharge port 21, it can block the simulated fluid discharge port 21 to prevent the simulated fluid from flowing out. When the blocking device 3 moves to the outside of the simulated fluid discharge port 21, the simulated fluid discharge port 21 is opened, and the simulated fluid can flow out from the simulated fluid discharge port 21 for simulated filtration testing.

[0060] In one embodiment, mounting plates 18 are respectively provided on the outer sides of the filter loading device 5. The top end of the mounting plate 18 is fixedly connected to the fixing plate 14, and the bottom end of the mounting plate 18 is fixedly connected to the second mounting platform 13.

[0061] A sliding device 7 is provided between the mounting plate 18 and the filter loading device 5. The sliding device 7 includes a first slide rail 71 and a second slide rail 72 that slide and cooperate with each other. The first slide rail 71 is installed on the side of the mounting plate 18 facing the filter loading device 5, and the second slide rail 72 is installed on the outer side wall of the filter loading device 5. The first slide rail 71 and the second slide rail 72 are slidably connected. The filter loading device 5 is slidably mounted on the mounting plate 18 by the cooperation of the first slide rail 71 and the second slide rail 72, which facilitates the replacement of the foam ceramic filter.

[0062] Specifically, the first slide rail 71 and the second slide rail 72 can be slidably connected by steel balls. In addition, the sliding device 7 can also adopt other existing devices that can achieve the sliding effect, such as linear ball guides, three-section industrial slide rails, etc.

[0063] In one embodiment, the weight detection device 7 is a weight sensor or a pressure sensor.

[0064] In some implementations, the loading container 2 can be a hopper, and the receiving container 6 can be a receiving bucket.

[0065] In one embodiment, the foam ceramic filter 10 is circular or square in shape, and the shape of the filter mounting cavity 53 corresponds to the shape of the foam ceramic filter 10.

[0066] In some embodiments, the thickness of the foam ceramic filter 10 is 20 mm to 60 mm.

[0067] In one embodiment, the operation of the filtration rate detection device for the foam ceramic filter is as follows:

[0068] (1) Insert the foam ceramic filter 10 into the filter loading device 5;

[0069] (2) By shielding the simulated fluid inlet 21 of the filling container 2 with the shielding device 3, a fixed amount of simulated fluid is added to the filling container 2 (see...). Figure 1 As shown in the figure, the simulated fluid in this embodiment is quicksand;

[0070] (3) During testing, the blocking device 3 is quickly pulled by the driving action of the driving device 4, which opens the simulated fluid discharge port 21. The simulated fluid enters the foam ceramic filter 10 for filtration after passing through the first simulated fluid through hole 141, and then falls into the receiving container 6 through the simulated fluid outlet 52 and the second simulated fluid through hole 131 in sequence (see...). Figure 3 (as shown);

[0071] (4) In step (3), the time it takes for a fixed amount of simulated fluid to pass through the foam ceramic filter 10 can be recorded manually; or, the start and end times of the detection can be recorded by the cooperation of the weight detection device 81 and the control module 82, and the time it takes for a fixed amount of simulated fluid to pass through the foam ceramic filter 10 can also be recorded.

[0072] (5) The filtration rate of the foam ceramic filter can be calculated manually or by specific software in the display device according to the formula: filtration rate = mass of fluid passing through the filter / time of fluid passing through the filter.

[0073] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A filtration rate detection device for foam ceramic filters, characterized in that, It includes a support frame, a loading container, a shielding device, a drive unit, a filter loading device, a receiving container, and a sliding device; The loading container, the shielding device, the filter loading device, and the receiving container are installed on the bracket from top to bottom, and the filter loading device is slidably installed on the bracket via the sliding device. The loading container is used to hold simulated fluid, and the filter loading device is used to load foam ceramic filters. The bottom of the loading container is provided with a simulated fluid discharge port, and the top and bottom of the filter loading device are respectively provided with a simulated fluid inlet and a simulated fluid outlet. The positions of the simulated fluid discharge port, the simulated fluid inlet and the simulated fluid outlet are corresponding, and the receiving container is located below the simulated fluid outlet. The shielding device is installed at the bottom of the simulated fluid discharge port, and the driving device is installed on the bracket. One end of the driving device is connected to the shielding device. The driving device is used to drive the shielding device to reciprocate in the horizontal direction, so that the shielding device can block or open the simulated fluid discharge port.

2. The filtration rate detection apparatus for a foamed ceramic filter according to claim 1, characterized by, The filter loading device has a filter mounting cavity for installing the foam ceramic filter. The simulated fluid inlet and the simulated fluid outlet are respectively connected to the filter mounting cavity. The size of the simulated fluid inlet is adapted to the size of the foam ceramic filter.

3. The filtration rate detection apparatus for a foamed ceramic filter according to claim 1, characterized by, The filtration rate detection device for the foam ceramic filter also includes a weight detection device, which is installed at the bottom of the receiving container. The weight detection device is connected to an external control module. The weight detection device is used to detect the weight of the receiving container. When the weight detection device detects an increase in the weight of the receiving container, it transmits a weight increase signal to the control module. The control module starts timing and records the initial time. When the weight detection device detects that the weight of the receiving container has stabilized, it transmits a weight stabilization signal to the control module. The control module stops timing and records the end time. The control module is signal-connected to an external display device, and the control module transmits the acquired data to the display device.

4. The filtration rate detection apparatus for a foamed ceramic filter according to claim 1, characterized by, The bracket includes a bracket body, a first mounting platform, a second mounting platform, and a fixing plate. The first mounting platform and the second mounting platform are respectively horizontally mounted on the bracket body from top to bottom. The loading container is installed on the first installation platform; The fixing plate is fixedly installed above the second mounting platform, and a movable mounting groove for installing the filter loading device is formed between the fixing plate and the second mounting platform. The filter loading device is slidably installed in the movable mounting groove. The shielding device is movably installed between the fixed plate and the loading container; The fixing plate is located in the through-hole of the first simulated fluid, and the second mounting platform is located in the through-hole of the second simulated fluid. The positions of the first simulated fluid through-hole and the second simulated fluid through-hole correspond to the positions of the simulated fluid discharge port.

5. The filtration rate detection device for foam ceramic filters according to claim 4, characterized in that, The bracket also includes several limiting members, which are fixedly installed above the fixed plate or on both sides of the shielding device, and the limiting members are set away from the loading container. A shielding device movable groove is formed between the limiting members and the fixed plate. The height of the shielding device movable groove corresponds to the thickness of the shielding device, and the shielding device is movably installed in the shielding device movable groove.

6. The filtration rate detecting apparatus for a foamed ceramic filter according to claim 4, characterized by The shielding device has a connecting plate on the side near the driving device. The fixed end of the driving device is installed on the support body. The movable end of the driving device is fixedly connected to the connecting plate. The movable end of the driving device extends or retracts, driving the shielding device to reciprocate within the movable groove of the shielding device, so that the shielding device can shield or open the simulated fluid discharge port.

7. The filtration rate detecting apparatus for a foamed ceramic filter according to claim 4, characterized by The filter loading device has mounting plates on both sides of its exterior. The top of the mounting plate is fixedly connected to the fixing plate, and the bottom of the mounting plate is fixedly connected to the second mounting platform. The sliding device is provided between the mounting plate and the filter loading device. The sliding device includes a first slide rail and a second slide rail that slide together. The first slide rail is installed on the side of the mounting plate facing the filter loading device, and the second slide rail is installed on the outer side wall of the filter loading device. The first slide rail and the second slide rail are slidably connected.

8. The filtration rate detection device for foam ceramic filters according to claim 3, characterized in that, The weight detection device is a weight sensor or a pressure sensor.

9. The filtration rate detection apparatus for a foamed ceramic filter according to claim 1, characterized by, The foam ceramic filter is circular or square in shape.

Images