Automatic filter media filling system

Abstract

This invention provides an automatic filter media filling system, comprising a filter media feeding and cleaning module, a filter media spraying module, and a wastewater sand removal and reuse module. The filter media feeding and cleaning module includes a filter media feeding device, a filter media rinsing and adding device, a raw water tank, and a delivery pump. The filter media rinsing and adding device includes a filter media temporary storage device, a filter media rinsing device, and a jet sand suction device. The filter media spraying module includes a filter media nozzle, a rotating device, and a filter media filling information acquisition device. The outlet of the raw water tank is connected to the inlet of the delivery pump, the outlet of the delivery pump is connected to the working fluid inlet of the jet sand suction device, and the mixing outlet of the jet sand suction device is connected to the filter media nozzle. The automatic filter media filling system provided by this invention can achieve automatic cleaning and filling of filter media, improving filling efficiency and quality, reducing labor intensity and labor costs, while simultaneously enabling wastewater reuse and reducing water resource waste.

Description

Technical Field

[0001] This invention relates to the field of filter media filling equipment structure technology, and in particular to an automatic filter media filling system. Background Technology

[0002] Currently, filter beds using granular filter media such as quartz sand, anthracite, and activated carbon (including but not limited to V-type filter beds, D-type filter beds, valveless filter beds, horizontal filters, fine sand filters, multi-media filters, activated carbon filters, etc.) are widely used in water treatment systems in industries such as industry, municipal, and nuclear power.

[0003] Before use, filter media needs to be filled into the filter tank. Currently, the filling of filter media is generally done manually. During the filling process, filter media packaged in ton bags is usually used. It requires manual labor and a crane to lift the ton bags (1.5 to 2 tons / bag) to the top of the filter tank. Then, the workers open the ton bags to let the granular filter media flow out and fill the filter tank. This manual filling method is not only inefficient, labor-intensive, and has certain operational hazards, but also has poor operational controllability and poor construction quality. At the same time, the granular filter media will generate a large amount of fine dust during the scattering process, which will have an adverse impact on the environment and the health of workers. Moreover, during the filter media filling process, workers need to work in the filter tank. When workers move around in the filter tank, they are likely to step on and break the water caps (which are generally installed in the filter tank), and the granular filter media in the ton bags may also break the water caps during the scattering process.

[0004] Meanwhile, since filter media generally contains a lot of impurities, it needs to be cleaned. Currently, the common practice is to fill the filter media into the filter tank and then repeatedly add clean water to circulate and backwash it, a process that consumes a large amount of water. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic filter media filling system that can automatically clean and fill filter media, improve filling efficiency and quality, reduce labor intensity and labor costs, and at the same time realize wastewater reuse and reduce water waste.

[0006] This invention provides an automatic filter media loading system, including a filter media feeding and cleaning module, a filter media spraying module, and a wastewater sand removal and reuse module. The filter media feeding and cleaning module includes a filter media feeding device, a filter media rinsing and adding device, a raw water tank, and a delivery pump. The filter media rinsing and adding device includes a filter media temporary storage device, a filter media rinsing device, and a jet sand suction device. The filter media rinsing device is connected to the inlet of the filter media temporary storage device, and the jet sand suction device's injection inlet is connected to the outlet of the filter media temporary storage device. The filter media feeding device is used to transport filter media into the filter media rinsing device. The filter media rinsing device is used to rinse the filter media, and the rinsed filter media can enter the filter media temporary storage device. The jet sand suction device is used to extract the filter media from the filter media temporary storage device.

[0007] The filter media spraying module is installed on the filter tank. The module includes a filter media nozzle, a rotating device, and a filter media filling information acquisition device. Both the filter media nozzle and the filter media filling information acquisition device are mounted on the rotating device. The rotating device can rotate up, down, left, and right, driving the filter media nozzle and the filter media filling information acquisition device to rotate up, down, left, and right. The filter media nozzle is used to spray filter media into the filter tank. The filter media filling information acquisition device is used to acquire current filter media filling information, including filter media filling height information and filling area information. The rotating device can rotate according to the filter media filling information acquired by the filter media filling information acquisition device.

[0008] The outlet of the raw water tank is connected to the inlet of the delivery pump, the outlet of the delivery pump is connected to the working fluid inlet of the jet sand suction device, and the mixing outlet of the jet sand suction device is connected to the filter media nozzle.

[0009] The wastewater sand removal and reuse module is used to filter wastewater. The inlet of the wastewater sand removal and reuse module is connected to the wastewater outlet of the filter media washing device and the sewage outlet of the filter tank, respectively. The outlet of the wastewater sand removal and reuse module is connected to the inlet of the raw water tank.

[0010] Furthermore, the automatic filter media filling system also includes a control module. The rotating device and the filter media filling information acquisition device are both electrically connected to the control module. The control module is used to control the rotation of the rotating device according to the filter media filling information acquired by the filter media filling information acquisition device.

[0011] Furthermore, the filter media filling information acquisition device is a lidar image recognition control device, which includes a lidar device, an image recognition device, and a control device. The lidar device and the image recognition device cooperate to acquire the current filter media filling information. The control device is electrically connected to the lidar device, the image recognition device, and the control module, respectively, and is used to transmit the filter media filling information acquired by the lidar device and the image recognition device to the control module.

[0012] Furthermore, the control module is also electrically connected to the filter material feeding device and the conveying pump, and the control module is also used to control the start and stop of the filter material feeding device and the conveying pump.

[0013] Furthermore, the automatic filter media filling system includes two skid-mounted modules: the filter media feeding and cleaning module, the wastewater sand removal and reuse module, and the control module constitute the first skid-mounted module, and the filter media spraying module constitutes the second skid-mounted module.

[0014] Furthermore, the filter media rinsing device includes a screen body, which is disposed on top of the filter media storage device; the screen body is provided with an isolation chamber, and the filter media feeding device is used to transport the filter media into the isolation chamber; the screen body is provided with a water inlet and a sewage outlet at opposite ends, respectively, and the water inlet and the sewage outlet are both connected to the isolation chamber; the bottom plate of the screen body is provided with screen holes, and the rinsed filter media can pass through the screen holes and enter the filter media storage device.

[0015] Furthermore, the outlet of the delivery pump is also connected to the inlet of the screen body.

[0016] Furthermore, the jet sand suction device is located at the bottom of the filter media storage device, and the jet inlet of the jet sand suction device is connected to the bottom outlet of the filter media storage device.

[0017] Furthermore, the wastewater sand removal and reuse module includes a cyclone sand removal device, a wastewater storage tank, and a filter. The sewage outlet of the filter tank is connected to the inlet of the cyclone sand removal device, and the clean water outlet of the cyclone sand removal device is connected to the inlet of the raw water tank. The wastewater outlet of the cyclone sand removal device and the wastewater outlet of the filter media rinsing device are both connected to the inlet of the wastewater storage tank. The outlet of the wastewater storage tank is connected to the inlet of the filter, and the outlet of the filter is connected to the inlet of the raw water tank.

[0018] Furthermore, the filter is a self-cleaning filter.

[0019] The automatic filter media filling system provided by this invention, by setting up a filter media feeding and cleaning module and a filter media spraying module, can realize the automatic cleaning and filling of filter media, thereby improving filling efficiency and quality, and reducing labor intensity and labor costs. Simultaneously, the filter media is fed and rinsed simultaneously, which, compared to the traditional method of rinsing only after all the media has been filled, results in better rinsing and uses less water. Furthermore, the filter media nozzles spray a mixture of water and filter media, eliminating dust generation and preventing environmental pollution caused by dust flying when the filter media scatters, as well as personal injury caused by workers inhaling dust, as in conventional methods. In addition, by setting up a wastewater sand removal and recycling module, the wastewater generated by the filter media rinsing device and the filling wastewater in the filter tank can be filtered by the wastewater sand removal and recycling module and returned to the original water tank, realizing wastewater reuse and reducing water waste. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the automatic filter media filling system in an embodiment of the present invention.

[0021] Figure 2 for Figure 1 A schematic diagram of the filter media rinsing device.

[0022] Figure 3 This is a schematic diagram showing the electrical signal connection between the control module and the filter media feeding device, the conveying pump, the cyclone sand removal device, the rotating device, and the filter media filling information acquisition device in an embodiment of the present invention. Detailed Implementation

[0023] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0024] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0025] like Figure 1 and Figure 2 As shown, the automatic filter media filling system provided in this embodiment of the invention includes a filter media feeding and cleaning module 1, a filter media spraying module 2, and a wastewater sand removal and reuse module 3.

[0026] The filter media feeding and cleaning module 1 includes a filter media feeding device 11, a filter media rinsing and adding device 12, a raw water tank 13, and a conveying pump 14. The filter media rinsing and adding device 12 includes a filter media temporary storage device 121, a filter media rinsing device 122, and a jet sand suction device 123. The filter media rinsing device 122 is connected to the inlet of the filter media temporary storage device 121, and the jet sand suction device 123 is connected to the outlet of the filter media temporary storage device 121. The output end of the filter media feeding device 11 is set corresponding to the filter media rinsing device 122. The filter media feeding device 11 is used to transport the filter media into the filter media rinsing device 122. The filter media rinsing device 122 is used to rinse the filter media, and the filter media rinsed by the filter media rinsing device 122 can enter the filter media temporary storage device 121. The jet sand suction device 123 is used to suck up the filter media in the filter media temporary storage device 121.

[0027] The filter media spraying module 2 is used to be installed on the filter tank 5. The filter media spraying module 2 includes a filter media nozzle 21, a rotating device 22 and a filter media filling information acquisition device 23. The filter media nozzle 21 and the filter media filling information acquisition device 23 are both installed on the rotating device 22. The rotating device 22 can rotate up, down and left and right, and drive the filter media nozzle 21 and the filter media filling information acquisition device 23 to rotate up, down and left and right. The filter media nozzle 21 is used to spray filter media into the filter tank 5; the filter media filling information acquisition device 23 is used to acquire the current filter media filling information, which includes the filling height information and the filling area information (i.e., the filling position information). The rotating device 22 can rotate according to the filter media filling information acquired by the filter media filling information acquisition device 23 (i.e., when the filter media filling information acquisition device 23 acquires that the filling height of the filter media in the current filling area has reached a preset value, the rotating device 22 rotates and drives the filter media nozzle 21 to rotate, so as to fill the filter media in the next filling area). When the rotating device 22 rotates left and right, it can control the spray direction of the filter media nozzle 21 in the horizontal direction. When the rotating device 22 rotates up and down, it can control the pitch angle of the filter media nozzle 21 (i.e., control the distance at which the filter media nozzle 21 sprays the filter media). Through the combination of left and right rotation and up and down rotation, the filter media nozzle 21 can spray filter media into each filling area.

[0028] The raw water tank 13 stores clean water. The outlet of the raw water tank 13 is connected to the inlet of the delivery pump 14. The outlet of the delivery pump 14 is connected to the working fluid inlet of the jet sand suction device 123. The mixing outlet of the jet sand suction device 123 is connected to the filter media nozzle 21 (the jet sand suction device 123 is also the ejector; when the delivery pump 14 pressurizes the water in the raw water tank 13 and delivers it to the jet sand suction device 123, the jet sand suction device 123 uses jet action to draw the filter media in the filter media storage device 121 into the jet sand suction device 123 and mixes it with the water). After the filter media in the filter media storage device 121 and the water output by the delivery pump 14 are mixed in the jet sand suction device 123, they are sprayed out through the filter media nozzle 21.

[0029] The wastewater sand removal and reuse module 3 is used to filter wastewater. The inlet of the wastewater sand removal and reuse module 3 is connected to the wastewater outlet 1223 of the filter media washing device 122 and the sewage outlet 50 of the filter tank 5. The outlet of the wastewater sand removal and reuse module 3 is connected to the inlet of the raw water tank 13.

[0030] The automatic filter media filling system provided in this embodiment, by setting up a filter media feeding and cleaning module 1 and a filter media spraying module 2, can realize automatic cleaning and filling of filter media, thereby improving filling efficiency and quality, reducing labor intensity and labor costs, and reducing the risk of water cap 51 rupture. At the same time, the filter media is fed and rinsed simultaneously, which has a better rinsing effect and uses less water compared to the traditional method of rinsing after all the filling is completed. Moreover, the filter media nozzle 21 sprays a mixture of water and filter media, which does not generate dust, thus eliminating the environmental pollution caused by dust flying when the filter media is scattered and the personal injury caused by workers inhaling dust in conventional methods. In addition, by setting up a wastewater desanding and recycling module 3, the wastewater generated by the filter media rinsing device 122 and the filling wastewater in the filter tank 5 can be filtered by the wastewater desanding and recycling module 3 and returned to the original water tank 13, realizing wastewater reuse and reducing water waste.

[0031] like Figure 1 As shown, in one embodiment, the filter media feeding device 11 is a conveyor belt device, which can transport the filter media in the filter media stockpile to the filter media washing device 122. Of course, in other embodiments, the filter media feeding device 11 can also be other feeding devices.

[0032] In one implementation, the delivery pump 14 is a mortar pump.

[0033] In one implementation, the mixing outlet of the jet sand suction device 123 is connected to the filter media nozzle 21 via a hose.

[0034] like Figure 1 and Figure 3As shown, in one embodiment, the automatic filter media filling system also includes a control module 4. The rotating device 22 and the filter media filling information acquisition device 23 are both electrically connected to the control module 4. The control module 4 is used to control the rotation of the rotating device 22 according to the filter media filling information acquired by the filter media filling information acquisition device 23.

[0035] like Figure 1 and Figure 3 As shown, in one embodiment, the filter media filling information acquisition device 23 is a lidar image recognition control device. This device can automatically identify the initial filling height, target filling height, and filling area location information of the filter tank 5. The lidar image recognition control device includes a lidar device 231, an image recognition device 232, and a control device 233. The lidar device 231 and the image recognition device 232 cooperate to acquire the current filter media filling information. The control device 233 is electrically connected to the lidar device 231, the image recognition device 232, and the control module 4. The control device 233 can control the operation of the lidar device 231 and the image recognition device 232, and also transmits the filter media filling information acquired by the lidar device 231 and the image recognition device 232 to the control module 4. Of course, in other embodiments, the filter media filling information acquisition device 23 can also be other recognition devices.

[0036] like Figure 1 and Figure 2 As shown, in one embodiment, the filter media washing device 122 includes a screen body 1220, which is disposed on top of the filter media storage device 121. The screen body 1220 has an isolation chamber 1221, and the filter media feeding device 11 is used to transport the filter media into the isolation chamber 1221. The screen body 1220 has a water inlet 1222 and a wastewater outlet 1223 at opposite ends, respectively, both of which are connected to the isolation chamber 1221. The bottom plate of the screen body 1220 has screen holes 1224, allowing the washed filter media to pass through the screen holes 1224 and enter the filter media storage device 121. Of course, in other embodiments, the filter media washing device 122 can also have other structural forms.

[0037] Specifically, during operation, the inlet 1222 is connected to the water inlet. After the filter media feeding device 11 conveys the filter media into the isolation chamber 1221, the filter media falls from the screen holes 1224 into the filter media storage device 121. Impurities in the filter media are trapped by the hydraulic flushing and the screening action of the screen and discharged from the sewage outlet 1223, thereby achieving the purpose of filter media rinsing. Since the filter media rinsing device 122 is located on top of the filter media storage device 121, it not only saves equipment space but also achieves the effect of rinsing while feeding, thereby improving the rinsing effect and saving water.

[0038] like Figure 1 and Figure 2 As shown, in one embodiment, the outlet of the delivery pump 14 is also connected to the water inlet 1222 of the screen body 1220, thereby using the delivery pump 14 to supply water to the filter media rinsing device 122, thus saving equipment. Of course, in other embodiments, a water source and water pump can also be additionally provided to supply water to the filter media rinsing device 122.

[0039] like Figure 1 As shown, in one embodiment, the jet sand suction device 123 is disposed at the bottom of the filter media storage device 121. The jet inlet of the jet sand suction device 123 is connected to the bottom outlet of the filter media storage device 121. This not only saves equipment space, but also makes it easier for the filter media in the filter media storage device 121 to enter the jet sand suction device 123.

[0040] like Figure 1 As shown, in one embodiment, the lower end of the filter media storage device 121 adopts a tapered design, that is, the lower end of the filter media storage device 121 has a structure that gradually decreases in size from top to bottom, so that the filter media can be accumulated at the bottom of the filter media storage device 121, making it easier for the filter media in the filter media storage device 121 to enter the jet sand suction device 123.

[0041] like Figure 1 and Figure 2 As shown, in one embodiment, the wastewater sand removal and reuse module 3 includes a cyclone sand removal device 31, a wastewater storage tank 32, and a filter 33. The sewage outlet 50 of the filter tank 5 is connected to the inlet of the cyclone sand removal device 31, and the clean water outlet of the cyclone sand removal device 31 is connected to the inlet of the raw water tank 13. The wastewater outlet of the cyclone sand removal device 31 and the sewage outlet 1223 of the filter media washing device 122 are both connected to the inlet of the wastewater storage tank 32. The outlet of the wastewater storage tank 32 is connected to the inlet of the filter 33, and the outlet of the filter 33 is connected to the inlet of the raw water tank 13.

[0042] Specifically, during operation, the wastewater in the filter tank 5 passes through the water cap 51 (the filter tank 5 is equipped with a water cap 51, which acts as a separator, allowing water to pass through while preventing the filter media from passing through) and then enters the cyclone sand removal device 31 through the drain port 50. The cyclone sand removal device 31 separates the clean water and fine sand from the wastewater. The separated clean water flows back to the raw water tank 13, while the sand-containing wastewater enters the wastewater storage tank 32. The wastewater generated by the filter media rinsing device 122 also enters the wastewater storage tank 32. The wastewater in the wastewater storage tank 32 is filtered by the filter 33 and then returned to the raw water tank 13 for reuse.

[0043] As one implementation, the filtration accuracy of filter 33 can be 200μm, meaning that filter 33 can intercept pollutants larger than 200μm.

[0044] As one implementation method, filter 33 is a self-cleaning filter that can automatically flush after clogging, thereby saving manpower (when the pressure difference of filter 33 increases after a period of use, filter 33 can automatically perform flushing, and the flushing wastewater is discharged to the sewage treatment plant for treatment and reuse).

[0045] like Figure 3 As shown, in one embodiment, the control module 4 is also electrically connected to the filter media feeding device 11, the conveying pump 14 and the cyclone sand removal device 31 respectively. The control module 4 is also used to control the opening and closing of the filter media feeding device 11, the conveying pump 14 and the cyclone sand removal device 31.

[0046] Specifically, in this embodiment, the control module 4 is an intelligent control system, which consists of a host, a PLC and communication instruments (including pressure sensors, flow sensors, liquid level sensors, etc.). The intelligent control system can control the automatic filter media filling system to open and close in a chain, perform feeding, sandblasting, swirling, etc., and collect and analyze the filter media filling information obtained by the filter media filling information acquisition device 23, so as to control the filter media spraying module 2 to perform uniform sandblasting and automatic start and stop.

[0047] In one implementation, the automatic filter media filling system adopts a skid-mounted frame structure. The system comprises two skid-mounted modules: the first skid-mounted module consists of the filter media feeding and cleaning module 1, the wastewater desanding and recycling module 3, and the control module 4, all centrally designed and manufactured in a skid-mounted configuration; the second skid-mounted module is the filter media spraying module 2. During use, the first skid-mounted module is placed between the filter media stack and the filter tank 5, while the second skid-mounted module is placed and fixed on top of the filter tank 5. The first and second skid-mounted modules are then connected and connected to water and electricity to begin the filling process. After filling, the water and electricity are disconnected, and the first and second skid-mounted modules can be disassembled and stored separately for reuse. By using two skid-mounted modules for the automatic filter media filling system, manufacturing is simplified, and use, storage, and reuse are also facilitated.

[0048] The working process of this automatic filter media filling system is as follows:

[0049] 1. The filter media feeding device 11 transports the filter media to the filter media washing device 122. After washing, the filter media enters the filter media temporary storage device 121. The wastewater and debris generated during washing enter the wastewater temporary storage tank 32.

[0050] 2. The delivery pump 14 pressurizes the water in the raw water tank 13 and delivers it to the jet sand suction device 123. The jet sand suction device 123 sucks the filter media in the filter media storage device 121 into the jet sand suction device 123 through the jet action and mixes it with water. The mixture of filter media and water enters the filter media nozzle 21 and is sprayed into the filter tank 5 through the filter media nozzle 21. The water in the mixture passes through the water cap 51 in the filter tank 5 and enters the cyclone sand removal device 31. The filter media in the mixture is intercepted by the water cap 51 to complete the filling.

[0051] 3. The filter media filling information acquisition device 23 automatically identifies the initial filling height, target filling height, and filling area of ​​the filter tank 5. The control module 4 controls the rotating device 22 to rotate up, down, left, and right according to the filter media filling information acquired by the filter media filling information acquisition device 23, so as to ensure that the filter media is evenly spread in the filter tank 5 until the filling height is reached and the filling work is completed.

[0052] 4. The cyclone sand removal device 31 separates the clean water and fine sand from the wastewater. The separated clean water flows back to the raw water tank 13, while the sand-containing wastewater enters the wastewater storage tank 32. The wastewater in the wastewater storage tank 32 is filtered by the filter 33 and then flows back to the raw water tank 13 for reuse. When the pressure difference of the filter 33 increases after a period of use, the filter 33 can automatically perform flushing. The flushing wastewater is discharged to the sewage treatment plant for treatment and reuse.

[0053] The automatic filter media filling system provided in this embodiment of the invention has the following advantages:

[0054] 1. This automatic filter media filling system can realize automatic feeding, automatic rinsing, automatic filling and wastewater reuse functions. It is fully automated and can be operated without human intervention. Compared with the traditional manual filling method of filter media, it can reduce the workload of at least five workers, improve filling efficiency and quality, reduce labor intensity and labor costs, and reduce the risk of water cap 51 rupture.

[0055] 2. This automatic filter media filling system is controlled by a combination of lidar and image recognition. The system automatically judges the filling status, ensuring high filling accuracy and eliminating human error.

[0056] 3. The filter media is fed and rinsed simultaneously, which results in better rinsing and uses less water compared to the traditional method of rinsing after all the filter media has been filled.

[0057] 4. Wastewater sand removal and reuse module 3 adopts a combination of cyclone sand removal and filter filtration for wastewater treatment, which can increase the water utilization rate to over 99.5%, greatly saving water resources.

[0058] 5. Since the filter media nozzle 21 sprays a mixture of water and filter media, it will not generate dust, thus eliminating the environmental pollution caused by dust flying when the filter media is scattered in conventional methods and the personal injury caused by workers inhaling dust.

[0059] 6. This automatic filter media filling system is manufactured as a skid-mounted integrated device. When used on-site, it can automatically fill without human intervention. After filling, the device can be disassembled, which is not only convenient to operate, but also has good versatility.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automatic filter media filling system, characterized in that, The system includes a filter media feeding and cleaning module (1), a filter media spraying module (2), and a wastewater sand removal and reuse module (3). The filter media feeding and cleaning module (1) includes a filter media feeding device (11), a filter media rinsing and adding device (12), a raw water tank (13), and a transfer pump (14). The filter media rinsing and adding device (12) includes a filter media temporary storage device (121), a filter media rinsing device (122), and a jet sand suction device (123). The filter media rinsing device (122) and the filter media temporary storage device (121) are connected at the inlet. The jet sand suction device (123) is connected to the outlet of the filter media storage device (121); the filter media feeding device (11) is used to transport the filter media to the filter media washing device (122); the filter media washing device (122) is used to wash the filter media, and the filter media washed by the filter media washing device (122) can enter the filter media storage device (121); the jet sand suction device (123) is used to suck up the filter media in the filter media storage device (121); The filter media rinsing device (122) includes a screen body (1220), which is disposed on top of the filter media temporary storage device (121). The screen body (1220) is provided with an isolation chamber (1221), and the filter media feeding device (11) is used to transport the filter media into the isolation chamber (1221). The screen body (1220) is provided with a water inlet (1222) and a sewage outlet (1223) at opposite ends, respectively. Both the water inlet (1222) and the sewage outlet (1223) are connected to the screen. The isolation chamber (1221) is connected, and the bottom plate of the screen body (1220) is provided with screen holes (1224). The rinsed filter material can pass through the screen holes (1224) and enter the filter material storage device (121). The jet sand suction device (123) is located at the bottom of the filter material storage device (121). The jet inlet of the jet sand suction device (123) is connected to the bottom outlet of the filter material storage device (121). The lower end of the filter material storage device (121) has a structure that gradually decreases in size from top to bottom. The filter media spraying module (2) is used to be installed on the filter tank (5). The filter media spraying module (2) includes a filter media nozzle (21), a rotating device (22), and a filter media filling information acquisition device (23). The filter media nozzle (21) and the filter media filling information acquisition device (23) are both installed on the rotating device (22). The rotating device (22) can rotate up, down, left, and right and drive the filter media nozzle (21) and the filter media filling information acquisition device (23) to rotate up, down, left, and right. The filter media nozzle (21) is used to spray the filter media into the filter tank (5). The filter media filling information acquisition device (23) is used to acquire the current filter media filling information. The rotating device (22) can rotate according to the filter media filling information acquired by the filter media filling information acquisition device (23). The outlet of the raw water tank (13) is connected to the inlet of the delivery pump (14), the outlet of the delivery pump (14) is connected to the working fluid inlet of the jet sand suction device (123), and the mixing outlet of the jet sand suction device (123) is connected to the filter media nozzle (21). The wastewater sand removal and reuse module (3) is used to filter sewage. The inlet of the wastewater sand removal and reuse module (3) is connected to the sewage outlet (1223) of the filter media washing device (122) and the sewage outlet (50) of the filter tank (5). The outlet of the wastewater sand removal and reuse module (3) is connected to the inlet of the raw water tank (13).

2. The automatic filter media filling system as described in claim 1, characterized in that, The automatic filter media filling system also includes a control module (4). The rotating device (22) and the filter media filling information acquisition device (23) are both electrically connected to the control module (4). The control module (4) is used to control the rotation of the rotating device (22) according to the filter media filling information acquired by the filter media filling information acquisition device (23).

3. The automatic filter media filling system as described in claim 2, characterized in that, The filter media filling information acquisition device (23) is a lidar image recognition control device. The lidar image recognition control device includes a lidar device (231), an image recognition device (232), and a control device (233). The lidar device (231) and the image recognition device (232) cooperate to acquire the current filter media filling information. The control device (233) is electrically connected to the lidar device (231), the image recognition device (232), and the control module (4). The control device (233) is used to transmit the filter media filling information acquired by the lidar device (231) and the image recognition device (232) to the control module (4).

4. The automatic filter media filling system as described in claim 2, characterized in that, The control module (4) is also electrically connected to the filter material feeding device (11) and the conveying pump (14), and the control module (4) is also used to control the opening and closing of the filter material feeding device (11) and the conveying pump (14).

5. The automatic filter media filling system as described in claim 2, characterized in that, The automatic filter media filling system includes two skid-mounted modules. The filter media feeding and cleaning module (1), the wastewater sand removal and recycling module (3), and the control module (4) are the first skid-mounted modules, and the filter media spray filling module (2) is the second skid-mounted module.

6. The automatic filter media filling system as described in claim 1, characterized in that, The outlet of the delivery pump (14) is also connected to the inlet (1222) of the screen body (1220).

7. The automatic filter media filling system as described in claim 1, characterized in that, The wastewater sand removal and reuse module (3) includes a cyclone sand removal device (31), a wastewater storage tank (32), and a filter (33). The sewage outlet (50) of the filter pool (5) is connected to the inlet of the cyclone sand removal device (31), and the clean water outlet of the cyclone sand removal device (31) is connected to the inlet of the raw water tank (13). The wastewater outlet of the cyclone sand removal device (31) and the sewage outlet (1223) of the filter media washing device (122) are both connected to the inlet of the wastewater storage tank (32). The outlet of the wastewater storage tank (32) is connected to the inlet of the filter (33), and the outlet of the filter (33) is connected to the inlet of the raw water tank (13).

8. The automatic filter media filling system as described in claim 7, characterized in that, The filter (33) is a self-cleaning filter.

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