Diatomaceous earth filter and method of using same

Abstract

The application discloses a diatomite filter and a use method thereof, relates to the field of copper foil production, and the diatomite filter comprises a filter tank, a filter assembly, a power pump and a first ultrasonic assembly, one end of the filter tank is communicated with a liquid inlet pipe, the other end of the filter tank is communicated with a liquid outlet pipe, a first check valve is arranged on the liquid inlet pipe, and a second check valve is arranged on the liquid outlet pipe; the filter assembly is arranged in the filter tank and located between the liquid inlet pipe and the liquid outlet pipe, the filter assembly comprises a filter core and a filter layer attached to the surface of the filter core, and the filter core is hollow; the power pump is communicated with the filter core through a pipeline, so that negative pressure is formed between the filter core and the filter layer; and the first ultrasonic assembly is arranged in the filter tank and arranged in correspondence with the filter assembly. Through the design, the filter layer recoating time can be greatly reduced, the treatment cost in the case of diatomite collapse can be reduced, and the economic benefit is indirectly greatly improved.

Description

Technical Field

[0001] This application relates to the field of copper foil production, and more particularly to a diatomaceous earth filter and its method of use. Background Technology

[0002] The production process of electrolytic copper foil is highly sensitive to contaminants and impurities. These contaminants in the electrolyte can cause quality defects such as rough surfaces, pinholes, and penetration points on the copper foil. Highly purified electrolyte is a prerequisite for producing high-quality copper foil; therefore, a mature electrolytic copper foil process requires a pre-filtration system for the electrolyte. Diatomaceous earth filters are among the most effective filtration devices for large, visible solid impurities, especially playing a crucial role in removing organic matter. Their filtration efficiency stems from the excellent adsorption properties of diatomaceous earth and activated carbon particles of varying particle sizes coated on the filter element surface for solid impurities such as organic matter.

[0003] Diatomaceous earth collapse is a serious production accident in the copper foil industry, and its occurrence is largely accidental. The current method for dealing with diatomaceous earth collapse is to re-form the diatomaceous earth filter, switch the pipeline to filter again after the diatomaceous earth formation is completed, then backflush and dry the collapse tank and put it back into standby mode. At the same time, the various levels of filtration equipment are inspected and replaced. It takes a long time to complete the recoating of the filter layer. During this process, the copper foil production machine of the system cannot produce copper foil normally, which seriously consumes electricity, raw materials and other material energy, resulting in increased production costs. Summary of the Invention

[0004] The purpose of this application is to provide a diatomaceous earth filter and its usage method, which can significantly reduce the time required for recoating the filter layer, reduce the treatment cost when diatomaceous earth collapses, and improve economic efficiency.

[0005] This application discloses a diatomaceous earth filter, which includes a filter canister, a filter assembly, a power pump, and a first ultrasonic component. One end of the filter canister is connected to an inlet pipe, and the other end is connected to an outlet pipe. A first check valve is provided on the inlet pipe, and a second check valve is provided on the outlet pipe. The filter assembly is disposed inside the filter canister, between the inlet pipe and the outlet pipe. The filter assembly includes a filter element and a filter layer attached to the surface of the filter element. The filter element is hollow inside. The power pump is connected to the filter element through a pipe to create a negative pressure between the filter element and the filter layer. The first ultrasonic component is disposed inside the filter canister and is correspondingly arranged with the filter assembly.

[0006] Optionally, the filter canister includes a canister body and a canister cover, the canister cover being fitted onto the canister body; the first ultrasonic component includes an ultrasonic column, one end of the ultrasonic column being fixed on the canister cover, the other end being disposed inside the filter element, and the acoustic holes on the ultrasonic column being disposed opposite to the inner wall of the filter element.

[0007] Optionally, the inlet pipe is located at the bottom of the filter canister, the outlet pipe is located at the top of the filter canister, and the diatomaceous earth filter further includes a second ultrasonic component located at the bottom of the filter canister.

[0008] Optionally, the filter canister includes a canister body; the first ultrasonic component includes a first ultrasonic plate covering the opening of the canister body, and the first ultrasonic plate is provided with 32 high-frequency sound sources; the second ultrasonic component includes a second ultrasonic plate opposite to the first ultrasonic plate, and the second ultrasonic plate is provided with 16 high-frequency sound sources; the diatomaceous earth filter further includes a third ultrasonic component, the third ultrasonic component including three third ultrasonic plates disposed on the inner wall of the canister body and arranged around the central axis of the canister body; wherein, each of the third ultrasonic plates is provided with 16 low-frequency sound sources.

[0009] Optionally, the first ultrasonic component and the second ultrasonic component operate alternately.

[0010] Optionally, the diatomaceous earth filter further includes a flow meter, a first monitor, a pressure sensor, and a second monitor. The flow meter is installed in the inlet pipe and is used to detect the flow rate of the solution passing through the inlet pipe. One end of the first monitor is connected to the flow meter, and the other end is connected to the first check valve, the second check valve, and the first ultrasonic component, respectively. When the flow meter detects that the flow rate of the solution passing through the inlet pipe decreases, the first monitor controls the first check valve and the second check valve to close, and controls the first ultrasonic component to open. The pressure sensor is installed at the bottom of the filter tank. The second monitor is connected to the pressure sensor, the power pump, and the first ultrasonic component, respectively. When the pressure sensor detects that the pressure value increases and then stabilizes within a preset time, it controls the first ultrasonic component to close and controls the power pump to start.

[0011] Optionally, the bottom of the tank is provided with a slag discharge port, a filter screen is provided on the side of the slag discharge port facing the filter assembly, and a cover is provided on the side of the slag discharge port away from the filter assembly.

[0012] This application also discloses a method for using a diatomaceous earth filter, for use in the diatomaceous earth filter described above, comprising the following steps:

[0013] Detect the liquid supply status of the inlet pipe;

[0014] When insufficient liquid supply is detected in the inlet pipe, the first check valve and the second check valve are closed simultaneously, and the power pump is shut down.

[0015] The filter layer in the filter assembly is broken into powder particles;

[0016] The powder particles are thoroughly mixed into the solution in the filter tank; and

[0017] Restart the power pump so that the powder particles adhere to the surface of the filter element.

[0018] Optionally, in the step of detecting the liquid supply status of the inlet pipe, a flow meter is used to detect whether the flow rate of the solution passing through the inlet pipe has decreased;

[0019] In the step of simultaneously closing the first check valve and the second check valve and shutting down the power pump when insufficient liquid supply is detected in the inlet pipe, when the flow meter detects a decrease in the solution flow rate through the inlet pipe, the first check valve and the second check valve are closed simultaneously, and the power pump is shut down.

[0020] In the step of breaking the filter layer in the filter assembly into powder particles, the first ultrasonic component is used to break the filter layer into powder particles by ultrasonic waves.

[0021] In the step of thoroughly mixing the powder particles into the solution in the filter canister, the powder particles are thoroughly mixed into the solution in the filter canister by means of a second ultrasonic component located at the bottom of the filter canister using ultrasonic waves.

[0022] This application also discloses a method for using a diatomaceous earth filter, for use in the diatomaceous earth filter described above, comprising the following steps:

[0023] Detect the liquid supply status of the inlet pipe;

[0024] When insufficient liquid supply is detected in the inlet pipe, the first check valve and the second check valve are closed simultaneously, and the power pump is shut down.

[0025] The filter layer in the filter assembly is broken into powder particles; and

[0026] Open the slag discharge port at the bottom of the tank to discharge the solution and powder particles from the tank.

[0027] In this application, when diatomaceous earth collapses in the diatomaceous earth filter, the first and second check valves can be used to retain the electrolyte passing through the inlet pipe in the filter tank. The first ultrasonic component then disperses the filter layer in the filter assembly into particles, causing these particles to mix with the electrolyte to form a suspension. This electrolyte, containing the particles, can then be directly discharged from the filter tank, avoiding backflushing of the filter assembly and eliminating the need to replace the diatomaceous earth filter. Diatomaceous earth can be directly refilled, extending the equipment's lifespan. Alternatively, after the dispersed particles are mixed in the electrolyte, the power pump can be restarted to provide power to the filter assembly, causing the filter layer material in the suspension to gradually adhere to the filter element surface, regenerating the filter layer. Therefore, the re-coating time is short, there is no need to activate a backup diatomaceous earth machine, and no need to clean the collapsed diatomaceous earth machine. This significantly reduces the time required for filter layer recoating, lowers the handling costs when diatomaceous earth collapses, and indirectly greatly improves economic efficiency. Furthermore, this process consumes little energy and resources and does not require shutdown. Attached Figure Description

[0028] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0029] Figure 1 This is a schematic diagram of a diatomaceous earth filter provided in an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of a diatomaceous earth filter provided in one embodiment of this application;

[0031] Figure 3 This is a schematic diagram of a diatomaceous earth filter provided in another embodiment of this application;

[0032] Figure 4 This is a schematic diagram of a diatomaceous earth filter provided in another embodiment of this application;

[0033] Figure 5 This is a flowchart illustrating a method of using a diatomaceous earth filter according to an embodiment of this application;

[0034] Figure 6 This is a flowchart of another method of using a diatomaceous earth filter provided in the embodiments of this application.

[0035] Among them, 10, diatomaceous earth filter; 11, flow meter; 12, first monitor; 13, pressure sensor; 14, second monitor; 100, filter tank; 110, inlet pipe; 120, outlet pipe; 130, first check valve; 140, second check valve; 150, tank body; 160, tank cover; 170, slag discharge port; 200, filter assembly; 210, filter element; 220, filter layer; 300, power pump; 400, first ultrasonic assembly; 410, ultrasonic column; 420, first ultrasonic plate; 500, second ultrasonic assembly; 510, second ultrasonic plate; 600, third ultrasonic assembly; 610, third ultrasonic plate. Detailed Implementation

[0036] It should be understood that the terminology, specific structural and functional details used herein are merely for describing particular embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.

[0037] In the use of diatomaceous earth filters, the adsorption of solid impurities such as organic matter by the diatomaceous earth and activated carbon particles on the filter element surface will become saturated. Usually, during the production process, activated carbon is continuously added so that the coating of the next layer of activated carbon is completed before the previous layer of activated carbon becomes saturated. In the early stage of the use of diatomaceous earth filters, the adsorption of activated carbon by diatomaceous earth and the power provided by the filter components complete the adsorption of the surface diatomaceous earth and activated carbon by the filter element. The subsequent activated carbon, since it does not have diatomaceous earth attached, relies on the viscous layer of organic matter generated by the adsorption of organic matter by the previous activated carbon to further adsorb the activated carbon layer.

[0038] There are two main reasons for diatomaceous earth filter collapse: the filter assembly loses its filtration power, and the diatomaceous earth filter loses its filter medium. When the filter assembly loses its power, the existing filtration flow rate is insufficient to provide the power for the filter layer to adhere to the filter element, causing the filter layer to collapse. Similarly, the filter layer will collapse rapidly if the filter medium is lost. Many factors can cause these collapses, such as a malfunctioning power (pressurization) pump or insufficient raw material in the storage tank. All of these can lead to filter layer collapse within a short period, after which the filter assembly loses its filtration effect.

[0039] Existing techniques involve first using pneumatic power to backflush the filter assembly. Since the filter layer in contact with the filter element is mainly composed of diatomaceous earth and carbon powder, which do not adsorb onto the filter element, the filter layer naturally detaches under gravity after the power from the filter assembly is lost. Only a small amount of filter layer remains adhered to the filter element surface. After drying the filter layer on the filter element surface, it will detach directly, thus completing the cleaning of the filter layer. Subsequently, the diatomaceous earth filter is re-formed to restore its filtration efficiency. However, this current approach involves long backflush times, long re-formation times, long cleaning times for collapsed equipment, high energy consumption, cumbersome equipment, and significant indirect economic losses. Therefore, this application provides a diatomaceous earth filter and its usage method that can reduce the handling costs and improve economic efficiency when diatomaceous earth collapses. The specific design is illustrated in the following embodiment.

[0040] like Figure 1 As shown in the figure, this application discloses a diatomaceous earth filter. The diatomaceous earth filter 10 includes a filter tank 100 and a filter assembly 200. One end of the filter tank 100 is connected to an inlet pipe 110, and the other end is connected to an outlet pipe 120. The filter assembly 200 is disposed inside the filter tank 100, located between the inlet pipe 110 and the outlet pipe 120. The inlet pipe 110 is connected to an electrolyte device, allowing the electrolyte to enter the diatomaceous earth filter 10 through the inlet pipe 110. After the particulate impurities in the electrolyte are filtered out by the filter assembly 200, the electrolyte flows out from the outlet pipe 120 and is used in the electrolysis process of copper foil production.

[0041] The inlet pipe 110 is located at the end of the filter tank 100 closest to the ground, and the outlet pipe 120 is located at the end of the filter tank 100 furthest from the ground. This prevents impurities in the electrolyte from settling on the filter assembly 200 due to gravity, thus affecting the subsequent filtration effect. Of course, the configuration can also be reversed, depending on the actual needs. Furthermore, the inlet pipe 110 is equipped with a first check valve 130, and the outlet pipe 120 is equipped with a second check valve 140. The first check valve 130 and the second check valve 140 are used to open and close the inlet pipe 110 and the outlet pipe 120 respectively, preventing electrolyte inflow and outflow under specific conditions. In addition, the first check valve 130 and the second check valve 140 can also control the flow rate of electrolyte inflow and outflow, thereby meeting various usage requirements.

[0042] In the diatomaceous earth filter 10, the filter assembly 200 includes a filter element 210 and a filter layer 220 attached to the surface of the filter element 210. The filter element 210 is constructed of porous ceramic, porous metal, or stainless steel mesh metal structure with a layer of filter cloth on the outside, and is hollow inside. The filter layer 220 is composed of diatomaceous earth and activated carbon particles, wrapped around the filter element 210. The diatomaceous earth filter 10 also includes a power pump 300, which is connected to the filter element 210 through a pipe to draw air, creating a negative pressure inside the filter element 210 to adsorb the filter layer 220 onto the outside of the filter element 210.

[0043] In addition, the diatomaceous earth filter 10 also includes a first ultrasonic component 400, which is disposed in the filter canister 100 and is disposed corresponding to the filter component 200. That is, the first ultrasonic component 400 can emit ultrasonic waves and act on the filter layer 220 of the filter component 200.

[0044] With the above-mentioned design of the diatomaceous earth filter 10, when diatomaceous earth collapses inside the filter 10, the first check valve 130 and the second check valve 140 can be used to retain the electrolyte that has passed through the inlet pipe 110 in the filter tank 100. The first ultrasonic component 400 can be used to break the filter layer 220 in the filter component 200 into particles, so that the broken particles are mixed with the electrolyte to form a suspension. Then, the electrolyte mixed with particles and silica residue is quickly discharged directly from the filter tank 100 to achieve the effect of quickly treating the filter layer 220. Moreover, it can avoid backflushing the filter component 200 and does not require replacing the diatomaceous earth filter 10. Diatomaceous earth can be directly filled and used again, thus extending the service life of the equipment. Since the bottom of the tank 150 is provided with a slag discharge port 170, which is normally sealed by a cap, when slag discharge is required or when rapid processing of the filter layer 220 is needed, the cap can be opened directly to discharge the electrolyte and residue from the slag discharge port 170. Furthermore, a filter screen is provided on the side of the slag discharge port 170 facing the filter assembly 200. The filter screen can filter out the residue in the electrolyte, achieving electrolyte recovery and saving costs.

[0045] Alternatively, as another method of use, after the dispersed particles are mixed in the electrolyte, the power pump 300 is restarted to provide power to the filter assembly 200, so that the filter layer 220 material in the suspension will gradually adhere to the surface of the filter element 210, achieving the effect of rapid regeneration of the filter layer 220. Moreover, since the soil re-creation time is short, there is no need to activate the backup diatomaceous earth machine or clean the collapsed diatomaceous earth machine, which can significantly reduce the recoating time of the filter layer 220, reduce the treatment cost when diatomaceous earth collapse occurs, and improve economic efficiency. In addition, this process consumes less energy and resources and does not require shutdown.

[0046] Furthermore, the above design can simplify the diatomaceous earth filter 10, eliminate the need for an aerodynamic system (backflush system), save on equipment construction costs, and extend the service life of the equipment. After eliminating the aerodynamic system, the energy consumption of the equipment will be further reduced, and the regeneration time of the filter layer 220 will be significantly reduced, minimizing accident costs and directly improving economic benefits.

[0047] Regarding the specific design of the first ultrasonic component 400, this application provides the following three specific implementation methods.

[0048] like Figure 2 As shown, in a first embodiment, the filter canister 100 includes a canister body 150 and a canister cover 160, with the canister cover 160 fitting over the canister body 150. The first ultrasonic component 400 includes at least one ultrasonic column 410, one end of which is fixed to the canister cover 160, and the other end is disposed inside the filter element 210. When the canister cover 160 is placed over the canister body 150, the ultrasonic column 410 is inserted into the filter element 210, such that the acoustic holes on the ultrasonic column 410 are positioned opposite to the inner wall of the filter element 210. In this embodiment, the number of ultrasonic columns 410 corresponds one-to-one with the number of filter elements 210. By directly transmitting ultrasonic waves from the inside of the filter component 200 to the outside, the filter layer 220 attached to the filter element 210 is uniformly subjected to the vibration of the ultrasonic waves, thereby accelerating the shedding of the filter layer 220.

[0049] In this second embodiment, the difference from the first embodiment is that the first ultrasonic component 400 includes multiple ultrasonic emitting structures. These structures are disposed on the side wall of the tank 150 or the tank cover 160, arranged around the central axis of the tank 150, and each ultrasonic emitting structure applies ultrasonic waves to the filter component 200. In this embodiment, friction and damage caused by direct contact between the first ultrasonic component 400 and the filter component 200 are effectively avoided.

[0050] As a third implementation method, the difference from the second implementation method is that the first ultrasonic component 400 includes a first ultrasonic plate 420, which directly covers the opening of the tank 150. While being able to emit ultrasonic waves to act on the filter component 200, it can also replace the structure of the tank cover 160.

[0051] like Figure 3 As shown, when the inlet pipe 110 is located at the bottom of the filter tank 100 and the outlet pipe 120 is located at the top of the filter tank 100, this embodiment of the application may further add a second ultrasonic component 500 to the diatomaceous earth filter 10. The second ultrasonic component 500 is located at the bottom of the filter tank 100, below the filter component 200.

[0052] The added second ultrasonic component 500 applies ultrasonic waves to the electrolyte and other impurities at the bottom of the filter tank 100. After the filter layer 220 is detached by the first ultrasonic component 400, the second ultrasonic component 500 can make the detached filter layer 220 mix evenly with the electrolyte, which facilitates the rapid regeneration of the filter layer 220 in the future, so that the filter layer 220 can be evenly attached to the filter element 210.

[0053] Furthermore, a third ultrasonic component 600 can be added to the diatomaceous earth filter 10. This third ultrasonic component 600 is disposed on the inner wall of the tank 150 and arranged around the central axis of the tank 150. This accelerates the effect on the filter layer 220, causing it to detach more quickly; or it accelerates the mixing of the detached filter layer 220 with the electrolyte.

[0054] It should be noted that, in this embodiment, the first ultrasonic component 400 within the diatomaceous earth filter 10 is sufficient to achieve the aforementioned rapid processing and rapid regeneration of the filter layer 220, thereby reducing processing costs and improving economic efficiency in the event of diatomaceous earth collapse. Further addition of a second ultrasonic component 500 and / or a third ultrasonic component 600 within the diatomaceous earth filter 10 is intended to further reduce time and improve efficiency.

[0055] As a specific implementation, taking a diatomaceous earth filter 10 that simultaneously includes a first ultrasonic component 400, a second ultrasonic component 500, and a third ultrasonic component 600 as an example, the first ultrasonic component 400 includes a first ultrasonic plate 420, which covers the opening of the tank 150 and has 32 high-frequency sound sources; the second ultrasonic component 500 includes a second ultrasonic plate 510, which is disposed opposite to the first ultrasonic plate 420 and has 16 high-frequency sound sources, and is located on the cover of the slag discharge port 170; the third ultrasonic component 600 includes three third ultrasonic plates 610, which are disposed on the inner wall of the tank 150 and arranged around the central axis of the tank 150; wherein each third ultrasonic plate 610 has 16 low-frequency sound sources.

[0056] In the above specific embodiments, firstly, the ultrasonic transmitters are all planar plates and equipped with a large number of sound sources, enabling the ultrasonic waves to be evenly applied to every part of the filter tank 100. Secondly, the first ultrasonic component 400 uses high-frequency ultrasound to cause the filter layer 220 to detach quickly; the second ultrasonic component 500 also uses high-frequency ultrasound to break up the detached blocky filter layer 220 and mix it into the electrolyte; while the third ultrasonic component 600 uses low-frequency ultrasound to heat the electrolyte at the bottom of the tank 150, making it easier for the filter layer 220 to mix with the electrolyte and improving the mixing efficiency. Finally, the inventors calculated that setting 32 high-frequency sound sources on the first ultrasonic plate 420, 16 high-frequency sound sources on the second ultrasonic plate 510, and 16 low-frequency sound sources on each of the third ultrasonic plates 610 ensures the effect while avoiding interference between different sound sources.

[0057] In the diatomaceous earth filter 10, the first ultrasonic component 400, the second ultrasonic component 500, and / or the third ultrasonic component 600 are all housed inside the filter canister 100, protected by a metal casing to prevent corrosion from the electrolyte. Furthermore, in a static state, they operate in the same manner as pressure gauges and other instruments, avoiding electrolyte impact and maintaining only a steady-state pressure, thus eliminating concerns about stability. As for the wiring of the first ultrasonic component 400, the second ultrasonic component 500, and / or the third ultrasonic component 600, the power lines are directly routed outside the filter canister 100, eliminating any leakage issues.

[0058] In addition, the first ultrasonic component 400 and the second ultrasonic component 500 operate alternately, that is, they cannot be turned on at the same time. The first ultrasonic component 400 and the second ultrasonic component 500 are turned on alternately in a cycle. By intermittently turning on the ultrasonic components at different positions, the ultrasonic interference between the first ultrasonic component 400 and the second ultrasonic component 500 is canceled.

[0059] As an optional implementation, firstly, the three third ultrasonic plates 610 are turned on one by one for 10-15 seconds, then the second ultrasonic plate is turned on for 15-20 seconds, then the first ultrasonic plate is turned on for 15-20 seconds, and then the second ultrasonic plate is turned on again for 15-20 seconds; the subsequent number of cycles or ultrasonic frequency is adjusted according to the ultrasonic effect. In this embodiment, when diatomaceous earth abnormalities occur, the electrolyte is first heated by the ultrasonic waves emitted by the third ultrasonic plate 610, then the large pieces of filter layer 220 that have fallen into the electrolyte are shaken apart by the ultrasonic waves emitted by the second ultrasonic plate 510, then the filter layer 220 outside the filter element 210 is shaken off by the ultrasonic waves emitted by the first ultrasonic plate 420, and finally the filter layer 220 is mixed evenly with the electrolyte by the ultrasonic waves emitted by the second ultrasonic plate 510. The different ultrasonic plates cooperate with each other without interference, greatly improving the processing efficiency of the filter layer 220.

[0060] In addition, such as Figure 4 As shown, in another embodiment, the diatomaceous earth filter 10 also has a high level of automation, reducing manpower. Specifically, the diatomaceous earth filter 10 further includes a flow meter 11, a first monitor 12, a pressure sensor 13, and a second monitor 14. The flow meter 11 is installed in the inlet pipe 110 and is used to detect the flow rate of the solution passing through the inlet pipe 110. One end of the first monitor 12 is connected to the flow meter 11, and the other end is connected to the first check valve 130, the second check valve 140, and the first ultrasonic component 400, respectively. When the flow meter 11 detects that the flow rate of the solution passing through the inlet pipe 110 decreases, the first monitor 12 controls the flow meter 12 to activate the second monitor 14. The first check valve 130 and the second check valve 140 are closed, and the first ultrasonic component 400 is opened. Alternatively, other ultrasonic components can also be opened. The pressure sensor 13 is located at the bottom of the filter tank 100. The second monitor 14 is connected to the pressure sensor 13, the power pump 300, and the first ultrasonic component 400. When the pressure sensor 13 detects that the pressure value increases and then stabilizes within a preset time, it indicates that the filter layer 220 has completely detached. At this time, the second monitor 14 controls the first ultrasonic component 400 to close and the power pump 300 to start, causing the filter layer 220 to re-adsorb onto the filter element 210. The above equipment is reasonably distributed inside and outside the diatomaceous earth filter 10, simplifying the equipment and not affecting the normal use of the diatomaceous earth filter 10.

[0061] Correspondingly, such as Figure 5 As shown in the embodiments of this application, a method for using a diatomaceous earth filter is also disclosed, which is used in the diatomaceous earth filter 10 described above, enabling rapid regeneration of the filter layer, including the following steps:

[0062] S1: Detect the liquid supply status of the inlet pipe;

[0063] S2: When insufficient liquid supply is detected in the inlet pipe, the first check valve and the second check valve are closed simultaneously, and the power pump is shut down.

[0064] S3: Shake the filter layer in the filter assembly into powder particles;

[0065] S4: Thoroughly mix the powder particles into the solution in the filter tank;

[0066] S5: Restart the power pump to allow the powder particles to adhere to the surface of the filter element.

[0067] In step S1, a flow meter is used to detect whether the flow rate of the solution passing through the inlet pipe has decreased; in step S2, when the flow meter detects a decrease in the flow rate of the solution passing through the inlet pipe, the first check valve and the second check valve are closed simultaneously, and the power pump is turned off; in step S3, the first ultrasonic component is used to break the filter layer into powder particles using ultrasonic waves, and the second ultrasonic component and the third ultrasonic component can also be combined to break the filter layer block at the bottom of the filter can; in step S4, the second ultrasonic component located at the bottom of the filter can is used to fully mix the powder particles into the solution in the filter can using ultrasonic waves.

[0068] In step S5, the power pump is restarted to provide power to the filter assembly, and the suspended filter material will gradually adhere to the filter element surface. During this process, the filter layer is regenerated using the lowest flow rate that allows the filter layer to adhere. Because the particle size and mass of the filter material are different, under a constant flow rate, according to the law of conservation of momentum, the distance that the filter element can move the particles varies within a certain range. Therefore, the order in which the particles reach the filter element surface is proportional to the particle mass; that is, the larger the particle mass and particle size, the longer it takes for the particles to reach the filter element. At this time, the new zinc layer on the outside of the filter element consists of an activated carbon layer, a fine silica layer, and a coarse silica layer from the inside out. During the manufacturing of the new filter layer, the power pump pressure can be gradually increased. When the filter layer is basically completed, additional activated carbon can be added until the filter layer effect is qualified. At this time, the filter layer regeneration is complete.

[0069] like Figure 6 As shown in the embodiments, this application also discloses a method for using a diatomaceous earth filter, which is used in the diatomaceous earth filter described above and can quickly process the filter layer, including the following steps:

[0070] S1: Detect the liquid supply status of the inlet pipe;

[0071] S2: When insufficient liquid supply is detected in the inlet pipe, the first check valve and the second check valve are closed simultaneously, and the power pump is shut down.

[0072] S3: Shake the filter layer in the filter assembly into powder particles;

[0073] S6: Open the slag discharge port at the bottom of the tank to discharge the solution and powder particles from the tank.

[0074] In step S6, a filter screen can be installed at the slag discharge port to recover part of the filtrate.

[0075] It should be noted that the limitations of each step involved in this solution are not considered as limiting the order of steps, provided that they do not affect the implementation of the specific solution. The steps listed first can be executed first, later, or even simultaneously. Solutions from different embodiments can be combined and applied without conflict. As long as this solution can be implemented, they should be considered to fall within the protection scope of this application.

[0076] Furthermore, the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0077] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A method of using a diatomaceous earth filter, characterized in that, The diatomaceous earth filter includes: A filter canister, one end of which is connected to an inlet pipe and the other end of which is connected to an outlet pipe. The inlet pipe is equipped with a first check valve and the outlet pipe is equipped with a second check valve. The inlet pipe is located at the bottom of the filter canister and the outlet pipe is located at the top of the filter canister. A filter assembly is disposed inside the filter tank, located between the inlet pipe and the outlet pipe. The filter assembly includes a filter element and a filter layer attached to the surface of the filter element. The filter element is hollow inside. A power pump is connected to the filter element through a pipeline to create a negative pressure between the filter element and the filter layer; A first ultrasonic component is disposed inside the filter canister and is disposed corresponding to the filter component; the filter canister includes a canister body, and the first ultrasonic component includes a first ultrasonic plate, the first ultrasonic plate covering the opening of the canister body. A second ultrasonic component is disposed at the bottom of the filter canister; the second ultrasonic component includes a second ultrasonic plate, which is disposed opposite to the first ultrasonic plate; and The third ultrasonic component includes three third ultrasonic plates, which are disposed on the inner wall of the tank and arranged around the central axis of the tank. The method of using the diatomaceous earth filter includes the following steps: Detect the liquid supply status of the inlet pipe; When insufficient liquid supply is detected in the inlet pipe, the first check valve and the second check valve are closed simultaneously, and the power pump is shut down. The filter layer in the filter assembly is broken into powder particles; The powder particles are thoroughly mixed into the solution in the filter tank; and Restart the power pump to allow the powder particles to adhere to the surface of the filter element; In the step of breaking the filter layer in the filter assembly into powder particles, the first ultrasonic component is used to break the filter layer into powder particles by ultrasonic waves, and the second ultrasonic component and the third ultrasonic component are combined to break the filter layer block at the bottom of the filter can. In the step of thoroughly mixing the powder particles into the solution in the filter canister, the powder particles are thoroughly mixed into the solution in the filter canister by means of the second ultrasonic component located at the bottom of the filter canister using ultrasonic waves.

2. The method of using the diatomaceous earth filter as described in claim 1, characterized in that, In the step of detecting the liquid supply status of the inlet pipe, a flow meter is used to detect whether the flow rate of the solution passing through the inlet pipe has decreased; In the step of simultaneously closing the first check valve and the second check valve and shutting down the power pump when insufficient liquid supply is detected in the inlet pipe, when the flow meter detects a decrease in the solution flow rate through the inlet pipe, the first check valve and the second check valve are closed simultaneously, and the power pump is shut down.

3. The method of using the diatomaceous earth filter as described in claim 1, characterized in that, The first ultrasonic component and the second ultrasonic component operate alternately.

4. The method of using the diatomaceous earth filter as described in claim 1, characterized in that, The first ultrasonic component uses high-frequency ultrasound, the second ultrasonic component uses high-frequency ultrasound, and the third ultrasonic component uses low-frequency ultrasound.

5. The method of using the diatomaceous earth filter as described in claim 1, characterized in that, The diatomaceous earth filter also includes: A flow meter is installed in the inlet pipe to detect the flow rate of the solution passing through the inlet pipe; A first monitor is connected at one end to the flow meter and at the other end to the first check valve, the second check valve, and the first ultrasonic component. When the flow meter detects that the flow rate of the solution passing through the inlet pipe decreases, the first monitor controls the first check valve and the second check valve to close and controls the first ultrasonic component to open. A pressure sensor is located at the bottom of the filter canister; and The second monitor is connected to the pressure sensor, the power pump, and the first ultrasonic component. When the pressure sensor detects that the pressure value increases and then stabilizes within a preset time, it controls the first ultrasonic component to shut down and controls the power pump to start.

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