Filtering device for liquid fertilizer production

Abstract

The invention discloses a filter device for liquid fertilizer production, which comprises a storage tank, a filter cartridge, a first water pump, a filter screen cleaning assembly and an impurity cleaning assembly, a filter screen cover is arranged in the filter cartridge, a liquid inlet pipe and a liquid outlet pipe are arranged on the filter cartridge, and a flow detector is arranged in the liquid outlet pipe; the filter screen cleaning assembly comprises a driving mechanism and an adsorption mechanism, and the driving mechanism controls the adsorption mechanism to rotate; the adsorption mechanism is used for adsorbing impurities in the filter screen cover; and one end of the impurity cleaning assembly is arranged on the storage tank and communicates with the storage tank, the other end of the impurity cleaning assembly communicates with the other end of the adsorption mechanism, and the impurity cleaning assembly cleans impurities adsorbed by the adsorption mechanism. Therefore, the filter screen can be directly cleaned in a non-stop process, and related workers do not need to frequently stop the machine to maintain the blocked filter screen cover, so that the filtering efficiency of the liquid fertilizer is improved.

Description

Technical Field

[0001] The present application relates to the technical field of liquid fertilizer processing equipment, and in particular to a filtering device for liquid fertilizer production. Background Art

[0002] Liquid fertilizer is a plant nutrient in liquid form, typically composed of macronutrients such as nitrogen, phosphorus, and potassium, as well as trace elements, organic matter, and microorganisms, produced through a dissolution or suspension process. It boasts uniform nutrient distribution, high absorption efficiency, and convenient application, making it widely used in modern agriculture for irrigation systems, foliar spraying, and soilless cultivation. During the liquid fertilizer production process, the raw materials may contain incompletely dissolved solid particles, fibrous impurities, and mechanical debris from production equipment. If these impurities are not effectively removed, they can not only clog fertilization equipment (such as drip irrigation nozzles), but can also affect fertilizer stability and nutrient uniformity, and even cause localized burns on crops. Therefore, filtration is a critical step in liquid fertilizer production, directly impacting product quality and equipment life.

[0003] Traditional liquid fertilizer filtration devices often use fixed filters (such as stainless steel or nylon mesh) to physically intercept the liquid. However, as the filter continues to filter, impurities gradually accumulate on the filter surface, forming a filter cake layer. This reduces the effective pore size and increases fluid resistance, leading to a decrease in flow rate or even complete blockage. Therefore, to ensure proper operation, personnel must regularly clean and maintain the filter, and this cleaning and maintenance process requires the equipment to be shut down. Summary of the Invention

[0004] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the purpose of this application is to provide a filtering device for liquid fertilizer production, which can directly clean the filter screen without stopping the machine, and does not require relevant staff to frequently stop the machine to maintain the clogged filter screen cover, while improving the filtering efficiency of the liquid fertilizer.

[0006] The filter screen cleaning assembly is a device for cleaning the filter screen, wherein the filter screen is provided in the filter screen, the filter screen is provided on the filter screen, and the filter screen is provided on the filter screen, wherein the filter screen is provided in the filter screen, the filter screen is provided on the filter screen, and the filter screen is provided on the filter screen, wherein the filter screen is provided in the filter screen, the filter screen is provided on the filter screen, and the filter screen is provided on the filter screen.

[0007] In addition, the filtration device for liquid fertilizer production proposed in the present application may also have the following additional technical features: In one embodiment of the present application, the adsorption mechanism includes a second water pump, an adsorption tube and a plurality of adsorption parts, wherein the second water pump is arranged on the storage tank, and one end of the second water pump is connected to the impurity cleaning component; the adsorption tube is rotatably connected to the filter cartridge, one end of the adsorption tube is located in the filter screen cover, and the other end of the adsorption tube extends to the outside of the filter cartridge and is rotatably connected to the other end of the second water pump, and a second gear is provided on the other end of the adsorption tube, and the second gear is meshed with the driving mechanism for transmission connection; multiple adsorption parts are respectively connected and arranged on the adsorption tube, and one end of the multiple adsorption parts is arranged near the inner wall of the filter screen cover.

[0008] In one embodiment of the present application, the adsorption component includes a connecting tube and an adsorption head, wherein one end of the connecting tube is connected to the adsorption tube, and the other end of the connecting tube is connected to the adsorption head; the adsorption head is arranged near the inner wall of the filter cover.

[0009] In one embodiment of the present application, the driving mechanism includes a driving motor, a connecting shaft and a first gear, wherein the driving motor is arranged on a support frame; the connecting shaft is connected to the output shaft of the driving motor, the connecting shaft is rotatably arranged on the filter cylinder, and a first gear is arranged on the connecting shaft, and the first gear is meshed with the second gear for transmission connection.

[0010] In one embodiment of the present application, the impurity cleaning assembly includes a cleaning box, a debris pushing piece and a debris collecting box, wherein one end of the cleaning box is connected to the adsorption mechanism, and the other end of the cleaning box is connected to the storage tank, a debris cleaning port is opened on the cleaning box, and a filter screen is provided in the cleaning box; the debris pushing piece is provided on the cleaning box and slides to seal the debris cleaning port, and the debris pushing piece is slidably connected to the filter screen; the debris collecting box is provided on the cleaning box, and the debris collecting box is provided at the debris cleaning port.

[0011] In one embodiment of the present application, the debris pushing component includes an electric telescopic rod and a debris pushing plate, wherein the electric telescopic rod is arranged on the cleaning box, and the extended shaft of the electric telescopic rod is connected to the debris pushing plate; a material leakage through hole is opened on the debris pushing plate, and the debris pushing plate is slidably connected to the filter plate and is slidably and sealedly connected to the debris cleaning port.

[0012] In one embodiment of the present application, a liquid equalizing part is provided at one end of the liquid outlet pipe, and the liquid equalizing part includes a main liquid suction pipe and multiple liquid suction branch pipes. The main liquid suction pipe is connected to the liquid outlet pipe, and the multiple liquid suction branch pipes are respectively provided on the main liquid suction pipe.

[0013] The beneficial effects of this application are as follows: By setting up the filter cleaning component and the impurity cleaning component, the filter cover can be cleaned directly without stopping the machine, and there is no need for relevant staff to frequently stop the machine to maintain the clogged filter, thereby improving the filtration efficiency of the liquid fertilizer.

[0014] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic structural diagram of a filtration device for producing liquid fertilizer according to one embodiment of the present application; Figure 2 This is a schematic structural diagram of a filter cartridge according to one embodiment of the present application; Figure 3 Schematic diagram of the cross-sectional structure of a filter cartridge according to one embodiment of the present application; Figure 4 Schematic diagram of the structure of a flow detector according to one embodiment of the present application; Figure 5 This is a schematic structural diagram of an adsorption component according to one embodiment of the present application; Figure 6 This is a schematic structural diagram of a push-pull component according to an embodiment of the present application; Figure 7 Schematic diagram of the structure of a push plate according to one embodiment of the present application.

[0016] As shown in the figure: 1. Storage tank; 2. Filter cartridge; 20. Filter screen cover; 21. Liquid inlet pipe; 22. Liquid outlet pipe; 200. Liquid equalizing part; 2000. Liquid suction main pipe; 2001. Liquid suction branch pipe; 201. Flow detector; 23. Support frame; 3. First water pump; 4. Filter screen cleaning assembly; 40. Driving mechanism; 400. Driving motor; 401. Connecting shaft; 402. First gear; 41. Adsorption mechanism; 410. Second water pump; 411. Adsorption tube; 4110. Second gear; 412. Adsorption part; 4120. Connecting pipe; 4121. Adsorption head; 4122. Adsorption port; 5. Impurity cleaning assembly; 50. Cleaning box; 500. Cleaning port; 501. Filter screen plate; 51. Pushing part; 510. Electric telescopic rod; 511. Pushing plate; 5110. Leakage hole; 52. Collecting box. DETAILED DESCRIPTION

[0017] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0018] The following describes the filtering device for liquid fertilizer production according to an embodiment of the present application with reference to the accompanying drawings.

[0019] like Figure 1-Figure 7 As shown, the filtering device for liquid fertilizer production in an embodiment of the present application includes a storage tank 1, a filter cartridge 2, a first water pump 3, a filter screen cleaning component 4 and an impurity cleaning component 5.

[0020] Among them, a filter screen cover 20 is provided in the filter cartridge 2, and a liquid inlet pipe 21 and a liquid outlet pipe 22 are provided on the filter cartridge 2. One end of the liquid inlet pipe 21 is connected to the storage tank 1, and the other end of the liquid inlet pipe 21 is connected to the interior of the filter screen cover 20. One end of the liquid outlet pipe 22 is connected to the filter cartridge 2, and the other end of the liquid outlet pipe 22 is connected to the first water pump 3, and a flow detector 201 is provided in the liquid outlet pipe 22.

[0021] It can be understood that the storage tank 1 is a container for storing unfiltered liquid fertilizer.

[0022] It can be understood that, through the provision of the first water pump 3, liquid fertilizer can be sucked from the storage tank 1 into the liquid inlet pipe 21, from the liquid inlet pipe 21 into the filter screen cover 20, and transported to the filter cartridge 2 through the filter screen cover 20, and flows into the first water pump 3 from the liquid outlet pipe 22, and is transported from the first water pump 3 to the next process.

[0023] It should be noted that the filter screen cover 20 described in this embodiment is cylindrical and is sealed at the top and bottom inside the filter cylinder 2, thereby ensuring the filtering effect of the filter screen cover 20. In addition, the internal communication between the liquid inlet pipe 21 and the filter screen cover 20 means that the filter screen cover 20 will not filter the connection between the liquid inlet pipe 21 and the filter screen cover 20, that is, the liquid fertilizer will not be filtered when entering the filter screen, and the liquid fertilizer will be filtered when it exits the filter screen cover 20 and transported to the next process (such as filling process) through the liquid outlet pipe 22 and the first water pump 3.

[0024] It should be noted that the filter mesh holes on the filter screen cover 20 described in this embodiment can be selected according to actual needs and are not limited here.

[0025] In the embodiment of the present application, the flow detector 201 is used to detect the flow rate of liquid fertilizer in the liquid outlet pipe 22 and transmit the signal of the liquid fertilizer flow rate to the controller (not shown in the figure). The controller determines the blockage condition of the filter according to the flow rate of the liquid fertilizer, thereby controlling the filter cleaning component 4 to clean the impurities on the filter cover 20. In addition, the part of the liquid outlet pipe 22 where the flow detector 201 is located is a hard pipe, thereby ensuring the detection effect of the flow detector 201.

[0026] The filter cleaning assembly 4 includes a driving mechanism 40 and an adsorption mechanism 41 .

[0027] The driving mechanism 40 is arranged on a support frame 23 provided on the filter cartridge 2 .

[0028] In the embodiment of the present application, the driving mechanism 40 is used to control the rotation of the adsorption mechanism 41, so that the adsorption mechanism 41 can rotate to adsorb impurities on the inner wall of the filter screen cover 20, thereby achieving impurity cleaning of the filter screen cover 20.

[0029] The adsorption mechanism 41 is rotatably connected to the filter cartridge 2. One end of the adsorption mechanism 41 is rotatably disposed within the filter screen cover 20 and adsorbs impurities within the filter screen cover 20. The other end of the adsorption mechanism 41 extends to the outside of the filter cartridge 2 and is meshedly connected to the drive mechanism 40. In the embodiment of the present application, the adsorption mechanism 41 is used to absorb impurities on the inner wall of the filter screen cover 20 and transport the absorbed impurities into the impurity cleaning component 5.

[0030] It is understandable that, through the rotational connection between the adsorption mechanism 41 and the filter cartridge 2 , the driving mechanism 40 can drive the rotation of the adsorption mechanism 41 , thereby ensuring that the adsorption mechanism 41 rotates and cleans the impurities on the inner wall of the filter screen cover 20 .

[0031] One end of the impurity cleaning component 5 is arranged on the storage tank 1 and communicated with the storage tank 1 , and the other end of the impurity cleaning component 5 is communicated with the other end of the adsorption mechanism 41 . The impurity cleaning component 5 cleans the impurities adsorbed by the adsorption mechanism 41 .

[0032] In the embodiment of the present application, the impurity cleaning component 5 is used to clean the impurities adsorbed by the adsorption mechanism 41, and leak the liquid fertilizer into the storage tank 1, and centrally clean the impurities, thereby eliminating the need for relevant staff to shut down the machine to maintain the filter, thereby improving the filtration efficiency of the liquid fertilizer.

[0033] Specifically, during the actual operation, the relevant staff first starts the device, and the controller (not shown in the figure) controls the first water pump 3 to work, so that the liquid fertilizer in the storage tank 1 is transported to the filter screen cover 20 through the liquid inlet pipe 21, and flows into the filter cylinder 2 after being filtered by the filter screen cover 20, and is transported to the next process through the liquid outlet pipe 22 and the first water pump 3.

[0034] When the flow detector 201 detects that the flow of liquid fertilizer in the liquid outlet pipe 22 is reduced to a specified value, the controller controls the filter cleaning assembly to work, so that the driving mechanism 40 works to control the adsorption mechanism 41 to rotate in the filter screen cover 20, and absorbs impurities on the inner wall of the filter screen cover 20 into the impurity cleaning assembly 5. The impurity cleaning assembly 5 filters the adsorbed impurities, so that the liquid fertilizer is filtered and leaks into the storage tank 1, and the impurities are concentrated in one place for processing, thereby completing the cleaning of the filter screen cover 20.

[0035] In one embodiment of the present application, Figure 1 and Figure 3 As shown, the adsorption mechanism 41 includes a second water pump 410 , an adsorption tube 411 and a plurality of adsorption members 412 .

[0036] Among them, the second water pump 410 is arranged on the storage tank 1, one end of the second water pump 410 is connected to the impurity cleaning component 5, the adsorption tube 411 is rotatably connected to the filter cartridge 2, one end of the adsorption tube 411 is located in the filter screen cover 20, the other end of the adsorption tube 411 extends to the outside of the filter cartridge 2, and is rotatably connected to the other end of the second water pump 410, and a second gear 4110 is provided on the other end of the adsorption tube 411, and the second gear 4110 is meshed and transmitted with the driving mechanism 40, and multiple adsorption parts 412 are respectively connected and arranged on the adsorption tube 411, and one end of the multiple adsorption parts 412 is arranged close to the inner wall of the filter screen cover 20.

[0037] It can be understood that, through the setting of the second water pump 410, impurities on the inner wall of the filter screen cover 20 are sucked into the adsorption tube 411 through multiple adsorption parts 412, and transported from the adsorption tube 411 to the impurity cleaning component 5, thereby completing the impurity cleaning of the filter screen cover 20.

[0038] It should be noted that the adsorption tube 411 described in this embodiment is a hard tube. In addition, the rotational connection between the adsorption tube 411 and the other end of the second water pump 410 means that the adsorption tube 411 is rotationally connected to the pipeline at the other end of the second water pump 410 (not shown in the figure), and the rotational connection method is the existing technology and will not be described in detail here.

[0039] It should be noted that the power of the second water pump 410 and the first water pump 3 described in this embodiment is set according to actual usage, and can ensure that the second water pump 410 can suck in impurities on the inner wall of the filter cover 20 and transport them to the impurity cleaning component 5 when the first water pump 3 is working. The specific power difference between the first water pump 3 and the second water pump 410 is not limited here.

[0040] It should be noted that one end of the adsorption member 412 described in this embodiment is arranged close to the inner wall of the filter screen cover 20 (that is, there is a gap between one end of the adsorption member 412 and the inner wall of the filter screen cover 20), and does not abut against the inner wall of the filter screen cover 20, so that when the adsorption member 412 rotates to adsorb impurities on the inner wall of the filter screen cover 20, it will not abut or squeeze the impurities on the inner wall of the filter screen cover 20, thereby avoiding the adsorption member 412 squeezing the impurities and getting the impurities stuck in the mesh of the filter screen cover 20, and avoiding the impurities being squeezed through the filter screen cover 20 and flowing into the next process along with the liquid fertilizer.

[0041] In one embodiment of the present application, Figure 3 and Figure 5 As shown, the adsorption component 412 includes a connecting tube 4120 and an adsorption head 4121 .

[0042] One end of the connecting tube 4120 is connected to the adsorption tube 411 , and the other end of the connecting tube 4120 is connected to the adsorption head 4121 . The adsorption head 4121 is arranged close to the inner wall of the filter screen cover 20 .

[0043] It is understandable that a gap is left between the adsorption head 4121 and the inner wall of the filter screen cover 20 , thereby ensuring the impurity filtering effect of the filter screen cover 20 .

[0044] It can be understood that by setting up multiple adsorption members 412, when the multiple adsorption members 412 rotate, the flow direction of the liquid fertilizer in the filter screen cover 20 can be changed, thereby stirring up the impurities at the bottom of the filter screen cover 20 and adsorbing them into the impurity cleaning component 5 through the adsorption head 4121, thereby improving the impurity cleaning effect of the device.

[0045] It should be noted that the apertures of the connecting tube 4120 and the adsorption head 4121 described in this embodiment are not specifically limited, and the specific dimensions are not described in detail here.

[0046] It should be noted that the adsorption port 4122 on the adsorption head 4121 described in this embodiment, which is close to the filter screen cover 20, is designed to be inclined to prevent impurities from clogging the adsorption head 4121.

[0047] In one embodiment of the present application, Figure 3 As shown, the driving mechanism 40 includes a driving motor 400 , a connecting shaft 401 and a first gear 402 .

[0048] Among them, the driving motor 400 is set on the support frame 23, the connecting shaft 401 is connected to the output shaft of the driving motor 400, the connecting shaft 401 is rotatably set on the filter cylinder 2, and a first gear 402 is set on the connecting shaft 401, and the first gear 402 is meshed and connected with the second gear 4110.

[0049] It is understandable that the meshing transmission between the first gear 402 and the second gear 4110 can drive the adsorption tube 411 to rotate, thereby driving the adsorption member 412 to rotate to adsorb and clean the inner wall of the filter screen cover 20 to remove impurities.

[0050] In one embodiment of the present application, Figure 1 、 Figure 3 and Figure 6 As shown, the impurity cleaning assembly 5 includes a cleaning box 50 , a debris pushing member 51 and a debris collecting box 52 .

[0051] Among them, one end of the cleaning box 50 is connected to the adsorption mechanism 41, and the other end of the cleaning box 50 is connected to the storage tank 1. A cleaning port 500 is opened on the cleaning box 50, and a filter screen plate 501 is provided in the cleaning box 50. A debris pushing piece 51 is provided on the cleaning box 50 and slides to seal the debris cleaning port 500, and the debris pushing piece 51 is slidably connected to the filter screen plate 501. A debris collecting box 52 is provided on the cleaning box 50, and the debris collecting box 52 is provided at the debris cleaning port 500.

[0052] It should be noted that one end of the cleaning box 50 described in this example is connected to the second water pump 410 in the adsorption mechanism 41 .

[0053] It can be understood that, by providing the filter screen 501 , the liquid fertilizer and impurities sucked up by the second water pump 410 can be separated, thereby ensuring the cleaning effect of the impurities.

[0054] In one embodiment of the present application, Figure 6 and Figure 7 As shown, the debris pushing member 51 includes an electric telescopic rod 510 and a debris pushing plate 511.

[0055] Among them, the electric telescopic rod 510 is set on the cleaning box 50, the extended shaft of the electric telescopic rod 510 is connected to the pushing plate 511, the pushing plate 511 is provided with a material leakage through hole 5110, the pushing plate 511 is slidably connected to the filter plate 501, and is slidably and sealedly connected to the cleaning port 500.

[0056] It is understood that when the push plate 511 is not pushing the impurity remover on the filter screen 501, it can seal the impurity removal port 500, thereby ensuring that the liquid fertilizer and impurities delivered by the second water pump 410 can be effectively filtered. When the push plate 511 is pushing the impurity remover on the filter screen 501, it can cause the impurities in the material leakage through hole 5110 to move, move to the impurity removal port 500, and fall into the impurity collection box 52.

[0057] In one embodiment of the present application, Figure 3 As shown, a liquid equalizing part 200 is provided at one end of the liquid outlet pipe 22. The liquid equalizing part 200 includes a main liquid suction pipe 2000 and multiple liquid suction branch pipes 2001. The main liquid suction pipe 2000 is connected to the liquid outlet pipe 22, and the multiple liquid suction branch pipes 2001 are respectively provided on the main liquid suction pipe 2000.

[0058] It should be noted that the liquid suction branch pipe 2001 described in this embodiment is arranged up and down on the liquid suction main pipe 2000, and the liquid suction branch pipe 2001 can be arranged around the filter screen cover 20, so as to prevent the liquid outlet pipe 22 from absorbing liquid fertilizer at a fixed position, causing impurities to accumulate there, thereby improving the filtering effect of the filter screen cover 20.

[0059] Specifically, during the actual operation, the relevant staff first starts the device, and the controller (not shown in the figure) controls the first water pump 3 to work, so that the liquid fertilizer in the storage tank 1 is transported to the filter screen cover 20 through the liquid inlet pipe 21, and flows into the filter cylinder 2 after being filtered by the filter screen cover 20, and is transported to the next process through the liquid outlet pipe 22 and the first water pump 3.

[0060] When the flow detector 201 detects that the flow of liquid fertilizer in the liquid outlet pipe 22 is reduced to a specified value, the controller controls the filter cleaning assembly to work, and the drive motor 400 drives the connecting shaft 401 and the first gear 402 to rotate. The first gear 402 engages to drive the second gear 4110 to rotate, and the second gear 4110 drives the adsorption tube 411 to rotate, and respectively drives multiple connecting tubes 4120 and corresponding adsorption heads 4121 to rotate.

[0061] The controller controls the second water pump 410 to work at the same time. The second water pump 410 extracts the liquid fertilizer in the filter screen cover 20 through the adsorption head 4121, and the impurities on the filter screen are sucked into the connecting pipe 4120 by the adsorption head 4121 (in addition, the impurities are adsorbed by the rotation), and are transported to the second water pump 410 through the connecting pipe 4120, and then transported to the cleaning box 50 through the second water pump 410. The filter screen 501 continuously filters the liquid fertilizer, leaving the impurities on the filter screen 501. The flow detector After 201 detects that the flow rate of liquid fertilizer in the liquid outlet pipe 22 reaches the specified value, the impurities on the filter screen cover 20 are cleaned, the filter screen cleaning component 4 stops working, and the controller controls the electric telescopic rod 510 to extend, and drives the impurity pushing plate 511 to be pushed out from the impurity cleaning port 500, and the impurities on the filter screen plate 501 are pushed out from the leakage through hole 5110 to the outside of the impurity cleaning port 500 and fall into the impurity collecting box 52. After cleaning is completed, the impurity pushing component 51 is reset, thereby completing the cleaning of the filter screen cover 20.

[0062] In summary, the filtering device for liquid fertilizer production according to the embodiment of the present application can directly clean the filter screen without stopping the machine, and does not require relevant staff to frequently stop the machine to maintain the clogged filter screen cover, thereby improving the filtering efficiency of the liquid fertilizer.

[0063] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0065] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A filtering device for liquid fertilizer production, characterized in that: It includes a storage tank, a filter cartridge, a first water pump, a filter cleaning component and an impurity cleaning component, wherein: A filter screen is provided in the filter cartridge, and a liquid inlet pipe and a liquid outlet pipe are provided on the filter cartridge, one end of the liquid inlet pipe is connected to the storage tank, the other end of the liquid inlet pipe is connected to the interior of the filter screen, one end of the liquid outlet pipe is connected to the filter cartridge, the other end of the liquid outlet pipe is connected to the first water pump, and a flow detector is provided in the liquid outlet pipe; The filter cleaning assembly includes a driving mechanism and an adsorption mechanism, wherein: The driving mechanism is arranged on a support frame arranged on the filter cartridge; The adsorption mechanism is rotatably connected to the filter cartridge, one end of the adsorption mechanism is rotatably disposed in the filter screen cover and adsorbs impurities in the filter screen cover, and the other end of the adsorption mechanism extends to the outside of the filter cartridge and is meshedly connected to the driving mechanism; One end of the impurity cleaning component is arranged on the storage tank and communicated with the storage tank, and the other end of the impurity cleaning component is communicated with the other end of the adsorption mechanism, and the impurity cleaning component cleans the impurities adsorbed by the adsorption mechanism.

2. The filtering device for liquid fertilizer production according to claim 1, characterized in that The adsorption mechanism includes a second water pump, an adsorption tube and a plurality of adsorption members, wherein: The second water pump is arranged on the storage tank, and one end of the second water pump is connected to the impurity cleaning component; The adsorption tube is rotatably connected to the filter cartridge, one end of the adsorption tube is located in the filter screen, the other end of the adsorption tube extends to the outside of the filter cartridge and is rotatably connected to the other end of the second water pump, and a second gear is provided on the other end of the adsorption tube, and the second gear is meshed and transmission-connected with the drive mechanism; The plurality of adsorption members are respectively and communicatively arranged on the adsorption tube, and one end of the plurality of adsorption members is arranged close to the inner wall of the filter screen cover.

3. The filtering device for liquid fertilizer production according to claim 2, characterized in that: The adsorption component includes a connecting pipe and an adsorption head, wherein: One end of the connecting tube is connected to the adsorption tube, and the other end of the connecting tube is connected to the adsorption head; The adsorption head is arranged close to the inner wall of the filter screen cover.

4. The filtering device for liquid fertilizer production according to claim 2, characterized in that: The driving mechanism includes a driving motor, a connecting shaft and a first gear, wherein: The driving motor is arranged on the supporting frame; The connecting shaft is connected to the output shaft of the driving motor. The connecting shaft is rotatably arranged on the filter cartridge. The connecting shaft is provided with the first gear, and the first gear is meshed and transmission-connected with the second gear.

5. The filtering device for liquid fertilizer production according to claim 1, characterized in that: The impurity cleaning assembly includes a cleaning box, a pusher and a collection box, wherein: One end of the cleaning box is connected to the adsorption mechanism, and the other end of the cleaning box is connected to the storage tank. A cleaning port is provided on the cleaning box, and a filter screen is provided inside the cleaning box. The debris pushing piece is arranged on the cleaning box and slides to seal the debris cleaning port, and the debris pushing piece is slidably connected to the filter screen plate; The sundry collection box is arranged on the cleaning box, and the sundry collection box is arranged at the sundry cleaning port.

6. The filtering device for liquid fertilizer production according to claim 5, characterized in that: The pusher includes an electric telescopic rod and a pusher plate, wherein: The electric telescopic rod is arranged on the cleaning box, and the extension shaft of the electric telescopic rod is connected to the pushing plate; The debris pushing plate is provided with a material leakage through hole, and the debris pushing plate is slidably connected to the filter screen plate and is slidably and sealedly connected to the debris cleaning port.

7. The filtering device for liquid fertilizer production according to claim 1, characterized in that: A liquid balancing piece is provided at one end of the liquid outlet pipe. The liquid balancing piece includes a main liquid suction pipe and a plurality of branch liquid suction pipes. The main liquid suction pipe is connected to the liquid outlet pipe, and the plurality of branch liquid suction pipes are respectively provided on the main liquid suction pipe.

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