Filtering device for reducing cadmium content in farmland irrigation water

Abstract

The utility model relates to the technical field of filtering equipment for cadmium content in farmland irrigation water, in particular to a filtering device for reducing the cadmium content in the farmland irrigation water, which comprises a support table, a first sedimentation tank fixedly connected with the top surface of the support table in a penetrating manner, and a second sedimentation tank fixedly connected with the top surface of the support table in a penetrating manner, an infusion pump is fixedly connected to the surface of the top of the supporting table, a three-way pipe is fixedly connected to the liquid outlet end of the infusion pump through a hose, and liquid outlet pipes are fixedly connected to the bottom end of the first sedimentation tank and the bottom end of the second sedimentation tank; through the arrangement of the first sedimentation tank, the second sedimentation tank, the infusion pump, the three-way pipe, the liquid outlet pipe, the adsorption box and the activated carbon box, liquid can be discharged from the filter box in a peak staggering manner, the farmland irrigation efficiency is ensured, and after feeding sedimentation of the sedimentation tanks, adsorption filtration of the activated carbon box is performed, so that the quality of the farmland is improved. And the cadmium can be better removed.

Description

Technical Field

[0001] The utility model relates to a filtering device for reducing the cadmium content in farmland irrigation water, belonging to the technical field of filtering equipment for reducing the cadmium content in farmland irrigation water. Background Art

[0002] When irrigating farmland, water is usually pumped from rivers or ditches through a pump. The cadmium content in the irrigation water must be reduced and removed before it can be used for irrigation. That is, a filtration device is needed to reduce the cadmium content in the farmland irrigation water. When removing and reducing cadmium, it is usually done through precipitation or adsorption, such as removal by adding calcium hydroxide or adsorption by activated carbon.

[0003] The existing technology has the following problems:

[0004] In the actual application of existing filtration devices for reducing the cadmium content in agricultural irrigation water, researchers found that when cadmium is removed by precipitation, since precipitation takes time, it is not possible to effectively guarantee the continuous discharge of irrigation water, and it is not possible to conveniently remove the cadmium element in the irrigation water again through secondary adsorption, which reduces the removal effect. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a filtering device for reducing the cadmium content in farmland irrigation water.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering device for reducing the cadmium content in farmland irrigation water, comprising a supporting table, a first sedimentation tank is penetrated and fixedly connected to the top surface of the supporting table, a second sedimentation tank is penetrated and fixedly connected to the top surface of the supporting table, a liquid pump is fixedly connected to the top surface of the supporting table, a liquid outlet end of the liquid pump is fixedly connected to a three-way pipe through a hose, the bottom ends of the first sedimentation tank and the second sedimentation tank are both fixedly connected to a liquid outlet pipe, the bottom end of the liquid outlet pipe is fixedly connected to a filter box, a filter plate is provided in the inner cavity of the filter box, a shaking spring is fixedly connected to the outer surface of the filter plate, a driving motor is fixedly connected to the surface of one side of the filter box, the bottom end of the filter box is fixedly connected to an adsorption box through a connecting pipe, a cover plate is movably connected to the front surface of the adsorption box by bolts, and an activated carbon box is slidably connected to the inner cavity of the adsorption box.

[0007] Preferably, the front side surface of the first sedimentation tank and the front side surface of the second sedimentation tank are both fixedly connected with a liquid inlet pipe, and the liquid outlet end of the three-way pipe is fixedly connected to the liquid inlet pipe through a hose.

[0008] Preferably, the first sedimentation tank is completely identical to the second sedimentation tank, and a feeding port is provided at the top of the first sedimentation tank and the top of the second sedimentation tank.

[0009] Preferably, there are two liquid outlet pipes, and switch valves are provided on the outer surfaces of the two liquid outlet pipes and the outer surface of the liquid outlet end of the three-way pipe.

[0010] Preferably, the shake spring is fixedly connected to the filter box at one end away from the filter plate, a sealing soft layer is provided on the outer surface of the shake spring, one end of the sealing soft layer is fixedly connected to the filter plate, and one end of the sealing soft layer is fixedly connected to the filter box at one end away from the filter plate.

[0011] Preferably, an impact rod is provided below the filter plate, and one end of the impact rod is fixedly connected to the output end of the driving motor.

[0012] Preferably, the top and bottom ends of the activated carbon box are fixedly connected with a card-embedded block, and the front surface of the adsorption box is provided with a card slot matching the structural size of the card-embedded block.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is provided with a first sedimentation tank, a second sedimentation tank, a liquid pump, a three-way pipe, a liquid outlet pipe, an adsorption box and an activated carbon box. The first sedimentation tank and the second sedimentation tank are provided so that liquid can be discharged from the filter box at a staggered peak, thereby ensuring the efficiency of farmland irrigation. After the feeding and sedimentation in the sedimentation tank, the cadmium can be better removed through adsorption and filtration by the activated carbon box. When in use, the aqueous solution is pumped into the three-way pipe through the liquid pump, and the switch valve on the three-way pipe is opened to add liquid to the first sedimentation tank or the second sedimentation tank. The switch valves on the two liquid outlet pipes are opened respectively, and the precipitated solution is staggeredly discharged into the filter box for filtration. After adsorption and filtration by the activated carbon box in the adsorption box, the cadmium is removed again, thereby improving the filtering and removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 It is a structural schematic diagram of the overall details of the utility model;

[0017] Figure 2 For this utility model Figure 1 The structural diagram at A in the middle;

[0018] Figure 3 It is a structural schematic diagram of the internal details of the filter box in the utility model;

[0019] Figure 4This is a structural schematic diagram of the front side view of the activated carbon box in the utility model when the cover plate is removed;

[0020] In the figure: 1. support table; 2. first sedimentation tank; 3. second sedimentation tank; 4. liquid pump; 5. three-way pipe; 6. liquid outlet pipe; 7. filter box; 8. filter plate; 9. shaking spring; 10. driving motor; 11. adsorption box; 12. cover plate; 13. activated carbon box; 14. liquid inlet pipe; 15. sealing soft layer; 16. impact rod; 17. embedded block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-4 The utility model provides the following technical solutions: a filtering device for reducing the cadmium content in farmland irrigation water, comprising a supporting table 1, a first sedimentation tank 2 is fixedly connected to the top surface of the supporting table 1, a second sedimentation tank 3 is fixedly connected to the top surface of the supporting table 1, a liquid pump 4 is fixedly connected to the top surface of the supporting table 1, a three-way pipe 5 is fixedly connected to the liquid outlet end of the liquid pump 4 through a hose, a liquid outlet pipe 6 is fixedly connected to the bottom end of the first sedimentation tank 2 and the bottom end of the second sedimentation tank 3, a filter box 7 is fixedly connected to the bottom end of the liquid outlet pipe 6, a filter plate 8 is provided in the inner cavity of the filter box 7, a shaking spring 9 is fixedly connected to the outer surface of the filter plate 8, a driving motor 10 is fixedly connected to the surface of one side of the filter box 7, the bottom end of the filter box 7 is fixedly connected to an adsorption box 11 through a connecting pipe, a cover plate 12 is movably connected to the front surface of the adsorption box 11 through bolts, and an activated carbon box 13 is slidably connected to the inner cavity of the adsorption box 11.

[0024] When in use, the irrigation water in the river is pumped into the three-way pipe 5 through the liquid pump 4, and then enters the first sedimentation tank 2 and the second sedimentation tank 3, and then calcium hydroxide is added to precipitate to reduce the concentration of cadmium. The mixed solution after precipitation is discharged into the filter box 7 through the liquid outlet pipe 6, filtered by the filter plate 8, and then enters the adsorption box 11. After adsorption by the activated carbon box 13, the cadmium content is further reduced, and then it is discharged for irrigation.

[0025] It should be noted that a slag retaining plate is slidably connected to the surface of one side of the filter box 7, and a slag outlet is opened near the slag retaining plate. An upper and lower electric push rods are fixedly connected to the top of the slag retaining plate, and the sleeve ends of the upper and lower electric push rods are fixedly connected to the filter box 7. The contraction of the upper and lower electric push rods can drive the slag retaining plate to rise, exposing the slag outlet, which is conducive to the discharge of the precipitate filtered by the filter plate 8.

[0026] As an optimal technical solution for a filtering device for reducing the cadmium content in farmland irrigation water of the utility model, the front surface of the first sedimentation tank 2 and the front surface of the second sedimentation tank 3 are fixedly connected with a liquid inlet pipe 14, and the liquid outlet end of the three-way pipe 5 is fixedly connected to the liquid inlet pipe 14 through a hose; ensuring that the aqueous solution in the three-way pipe 5 can enter the first sedimentation tank 2 or the second sedimentation tank 3 through the liquid inlet pipe 14.

[0027] As an optimal technical solution for a filtering device for reducing the cadmium content in farmland irrigation water of the utility model, the first sedimentation tank 2 is completely consistent with the second sedimentation tank 3, and a feeding port is provided at the top of the first sedimentation tank 2 and the top of the second sedimentation tank 3; a sealing cover is threadedly connected to the outer side of the feeding port, and after being rotated and removed, calcium hydroxide material is added to precipitate and reduce the cadmium content.

[0028] As an optimal technical solution for a filtering device for reducing the cadmium content in farmland irrigation water according to the utility model, there are two liquid outlet pipes 6, and switch valves are provided on the outer surfaces of the two liquid outlet pipes 6 and the outer surface of the liquid outlet end of the three-way pipe 5; the switch valve is an existing well-known device, and those skilled in the art can complete the installation and use of the switch valve according to the existing technology.

[0029] As an optimal technical solution for a filtering device for reducing the cadmium content in farmland irrigation water according to the utility model, the top and bottom ends of the activated carbon box 13 are fixedly connected with a card-embedded block 17, and the front surface of the adsorption box 11 is provided with a card slot matching the structural size of the card-embedded block 17; the activated carbon box 13 is slidably connected to the adsorption box 11 by the card-embedded block 17, which is conducive to the installation of the position of the activated carbon box 13.

[0030] Example 2

[0031] See also Figure 3 The difference between this embodiment and embodiment 1 is that:

[0032] One end of the shaking spring 9 away from the filter plate 8 is fixedly connected to the filter box 7, and a sealing soft layer 15 is provided on the outer surface of the shaking spring 9, and one end of the sealing soft layer 15 is fixedly connected to the filter plate 8, and one end of the sealing soft layer 15 away from the filter plate 8 is fixedly connected to the filter box 7; an impact rod 16 is provided under the filter plate 8, and one end of the impact rod 16 is fixedly connected to the output end of the driving motor 10; the impact rod 16 is driven by the driving motor 10 to hit the filter plate 8, and the filter plate 8 cooperates with the shaking of the shaking spring 9 to prevent precipitation from clogging the filter holes on the surface of the filter plate 8, and the sealing soft layer 15 is made of rubber, which can prevent the shaking spring 9 from rusting.

[0033] It should be noted that: through the personnel in this field, all electrical components in this case, such as the liquid pump 4, the drive motor 10, etc., are connected to the corresponding power supply through wires, and a suitable controller, such as a PLC controller or a single-chip microcomputer, should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the working order. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

[0034] The working principle and use process of the utility model are as follows: when in use, the switch valves on the two liquid outlet pipes 6 are opened at staggered times, that is, the filter box 7 can be drained and filtered at staggered times to ensure continuous drainage of farmland irrigation. Further, when there is no solution inside a sedimentation tank, the corresponding switch valve on the three-way pipe 5 is opened, and the liquid pump 4 is started to complete the liquid addition to the sedimentation tank. Further, when entering the filter box 7, the drive motor 10 is started to drive the impact rod 16 to run, and the impact rod 16 will hit the filter plate 8. The filter plate 8 cooperates with the shaking of the shaking spring 9 to prevent the precipitation from clogging the filter holes on the surface of the filter plate 8, thereby ensuring the filtration efficiency. Further, when the activated carbon box 13 needs to be replaced, the bolts are rotated and removed, the cover plate 12 is removed, and the activated carbon box 13 is pulled out and replaced.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0036] In this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus.

Claims

1. A filtering device for reducing the cadmium content in farmland irrigation water, comprising a support table (1), characterized in that: The top surface of the support table (1) is penetrated and fixedly connected with a first sedimentation tank (2), the top surface of the support table (1) is penetrated and fixedly connected with a second sedimentation tank (3), the top surface of the support table (1) is fixedly connected with a liquid pump (4), the liquid outlet end of the liquid pump (4) is fixedly connected with a three-way pipe (5) through a hose, the bottom ends of the first sedimentation tank (2) and the second sedimentation tank (3) are both fixedly connected with a liquid outlet pipe (6), the bottom ends of the liquid outlet pipe (6) are fixedly connected with a filter box (7), the inner cavity of the filter box (7) is provided with a filter plate (8), the outer surface of the filter plate (8) is fixedly connected with a shaking spring (9), one side surface of the filter box (7) is fixedly connected with a driving motor (10), the bottom end of the filter box (7) is fixedly connected with an adsorption box (11) through a connecting pipe, the front surface of the adsorption box (11) is movably connected with a cover plate (12) through bolts, and the inner cavity of the adsorption box (11) is slidably connected with an activated carbon box (13).

2. A filtering device for reducing the cadmium content in farmland irrigation water according to claim 1, characterized in that: The front surface of the first sedimentation tank (2) and the front surface of the second sedimentation tank (3) are both fixedly connected with a liquid inlet pipe (14), and the liquid outlet end of the three-way pipe (5) is fixedly connected to the liquid inlet pipe (14) through a hose.

3. A filtering device for reducing the cadmium content in farmland irrigation water according to claim 1, characterized in that: The first sedimentation tank (2) is completely identical to the second sedimentation tank (3), and a feeding port is provided at the top of the first sedimentation tank (2) and the top of the second sedimentation tank (3).

4. A filtering device for reducing the cadmium content in farmland irrigation water according to claim 1, characterized in that: There are two liquid outlet pipes (6), and the outer surfaces of the two liquid outlet pipes (6) and the outer surface of the liquid outlet end of the three-way pipe (5) are both provided with switch valves.

5. The filtering device for reducing the cadmium content in farmland irrigation water according to claim 1, characterized in that: The end of the shaking spring (9) away from the filter plate (8) is fixedly connected to the filter box (7), the outer surface of the shaking spring (9) is provided with a sealing soft layer (15), one end of the sealing soft layer (15) is fixedly connected to the filter plate (8), and the end of the sealing soft layer (15) away from the filter plate (8) is fixedly connected to the filter box (7).

6. A filtering device for reducing the cadmium content in farmland irrigation water according to claim 1, characterized in that: An impact rod (16) is provided below the filter plate (8), and one end of the impact rod (16) is fixedly connected to the output end of the drive motor (10).

7. A filtering device for reducing the cadmium content in farmland irrigation water according to claim 1, characterized in that: The top and bottom ends of the activated carbon box (13) are both fixedly connected with a card-embedded block (17), and the front surface of the adsorption box (11) is provided with a card slot matching the structural dimensions of the card-embedded block (17).

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