Water-saving drip irrigation device for pasture planting in saline-alkali soil

Abstract

The utility model discloses a water-saving drip irrigation device for planting pasture in saline-alkali soil, which belongs to the technical field of agricultural planting drip irrigation and comprises a reservoir and a filter tank, the reservoir is communicated and connected with the filter tank through a delivery pipe, a plurality of drip irrigation pipes are arranged on two sides of the delivery pipe in a communicated manner, and a planting area is arranged below the drip irrigation pipes. The planting area comprises a straw layer at the top, a soil layer is arranged below the straw layer, a guide plate is obliquely arranged at the bottom of the soil layer, a water leakage net is arranged at the oblique lower end of the guide plate and communicated with the bottom of the filter tank, a stirring rod is rotationally arranged at the bottom of the filter tank, and filter units are arranged in the water storage tank and the filter tank. The water storage pool can store rainwater, the rainwater is conveyed to the drip irrigation pipe for drip irrigation after being filtered, the straw layer can reduce water evaporation, water which is not absorbed by forage grass is gathered into the filtering pool along the flow guide plate, purified water can be recycled for drip irrigation again, water resources are saved, and soil salt accumulation can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural planting drip irrigation, in particular to a water-saving drip irrigation device for planting pasture in saline-alkali land. Background Art

[0002] The forage industry occupies an important position in China's animal husbandry, and its quality and output directly affect the development of animal husbandry. With the expansion of breeding scale, the area of ​​forage cultivation is also increasing year by year. Forage cultivation is a comprehensive technical activity involving multiple links such as variety selection, soil preparation, sowing, and field management.

[0003] Saline-alkali land refers to land with excessive salt in the soil, which results in poor soil permeability and low fertility, making it unfavorable for crop growth. In China, saline-alkali land is mainly distributed in Northeast China, North China, Northwest China and the Huanghuaihai region, with a total area of ​​millions of square kilometers. The causes of saline-alkali land are complex, including natural factors such as vigorous evaporation, high groundwater levels, and seawater intrusion, as well as human factors such as improper irrigation and excessive fertilizers.

[0004] As a salt-tolerant and adaptable plant, forage grass has multiple meanings when planted in saline-alkali land. First, forage grass can help reduce soil salinity and improve the soil environment by absorbing and accumulating salt. Secondly, forage grass is an important source of feed for animal husbandry, especially in arid and semi-arid areas, where forage grass planting is crucial to ensuring the supply of livestock feed. In addition, forage grass can also be used as a means of ecological restoration, by planting salt-tolerant forage grass to restore and maintain the balance of the ecosystem.

[0005] Most of the existing irrigation methods for planting forage grass in saline-alkali land use sprinkler irrigation, which is to spray water on the forage seeds. This is water-consuming and the water evaporates quickly, which cannot reduce the accumulation of soil salt. The water not absorbed by the seeds is lost and is not recycled. Utility Model Content

[0006] In order to solve the technical problems that most of the existing irrigation for forage planting in saline-alkali land use water by sprinkler irrigation, which is water-consuming and the water evaporates quickly, and the accumulation of soil salt cannot be reduced, and the water not absorbed by the seeds is lost and cannot be recycled, the utility model provides a water-saving drip irrigation device for forage planting in saline-alkali land.

[0007] A water-saving drip irrigation device for planting forage grass in saline-alkali land comprises a water storage tank and a filter tank, the water storage tank and the filter tank are connected by a delivery pipe, a plurality of drip irrigation pipes are arranged on both sides of the delivery pipe, a planting area is arranged below the drip irrigation pipe, the planting area comprises a straw layer on the top, a soil layer is arranged below the straw layer, a guide plate is arranged obliquely at the bottom of the soil layer, a water leakage net is arranged at the inclined lower end of the guide plate, the water leakage net is arranged in communication with the bottom of the filter tank, a stirring rod is rotatably arranged at the bottom of the filter tank, and filtering units are arranged inside the water storage tank and the filter tank.

[0008] More preferably, an opening is provided on the top of the water reservoir, and the filter unit in the filter pool is provided above the stirring rod, and both include a filter screen and an activated carbon adsorption layer, wherein the filter screen in the filter pool is at the bottom, and the filter screen in the water reservoir is at the top.

[0009] More preferably, a feeding pipe and a sewage pipe are arranged below the filter screen in the filter pool and through the side wall of the filter pool, a motor is arranged on the outer wall of the filter pool, and the stirring rod includes a stirring shaft arranged at the output end of the motor, and a plurality of stirring paddles are arranged on the outer wall of the stirring shaft.

[0010] More preferably, one end of the delivery pipe passes through the side wall of the water storage tank and is arranged below the filter unit, and the other end passes through the side wall of the filter tank and is arranged above the filter unit. Several support columns are arranged below the delivery pipe, and a fastening ring is arranged on the top wall of the support column, and the delivery pipe is arranged inside the fastening ring.

[0011] More preferably, solenoid valves and pressure pumps are provided at both ends of the delivery pipe, a plurality of drip irrigation holes are provided on the bottom wall of the drip irrigation pipe, a connecting pipe is provided at the bottom of the water leakage net, and the connecting pipe is provided in communication with the bottom of the filter tank.

[0012] More preferably, the forage grass seeds are planted inside the soil layer, the inclined upper end of the guide plate is close to the water reservoir, and the inclined lower end thereof is close to the filter tank.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the water reservoir can store rainwater, which is then transported to the drip irrigation pipe for drip irrigation after filtration; the straw layer can reduce water evaporation; the water not absorbed by the forage grass is gathered into the filter pool along the guide plate; additives are added to the filter pool, and after mixing with water, precipitates are precipitated; the precipitates are filtered at the bottom; the purified water can be recycled for drip irrigation again, thus saving water resources and reducing soil salt accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a top view schematic diagram of the structure of the utility model;

[0016] Figure 3 It is a schematic diagram of partial structure A of the utility model.

[0017] In the figure: 1. water storage tank; 2. filter tank; 3. delivery pipe; 4. drip irrigation pipe; 5. planting area; 6. straw layer; 7. soil layer; 8. guide plate; 9. water leakage net; 10. stirring rod; 11. filter net; 12. activated carbon adsorption layer; 13. feeding pipe; 14. sewage pipe; 15. motor; 16. stirring shaft; 17. stirring paddle; 18. support column; 19. fastening ring; 20. solenoid valve; 21. pressure pump; 22. drip irrigation hole; 23. connecting pipe. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0020] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0021] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this utility model can be understood according to the specific circumstances. In addition, the term "plurality" should mean two or more than two.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. Figure 1-Figure 3 The utility model is described in detail in conjunction with the embodiments.

[0023] A water-saving drip irrigation device for planting forage grass in saline-alkali land comprises a water reservoir 1 and a filter pool 2. The water reservoir 1 is provided with an opening at the top to receive rainwater. The water reservoir 1 and the filter pool 2 are connected via a delivery pipe 3. Filter units are provided inside the water reservoir 1 and the filter pool 2 to filter and purify rainwater and water mixed with salt and alkali. One end of the delivery pipe 3 passes through the side wall of the water reservoir 1 and is arranged below the filter unit to absorb filtered rainwater for drip irrigation. The other end passes through the side wall of the filter pool 2 and is arranged above the filter unit to absorb filtered water with salt and alkali for drip irrigation. A plurality of support columns 18 are provided below the delivery pipe 3. A fastening ring 19 is provided on the top wall of the support column 18. The delivery pipe 3 is arranged inside the fastening ring 19 to support the delivery pipe 3.

[0024] Solenoid valves 20 and pressure pumps 21 are provided at both ends of the delivery pipe 3. The switch of the solenoid valve 20 can intercept the flow at both ends of the delivery pipe 3. In conjunction with the pressure pump 21, the delivery pipe 3 can receive clean water delivered from the water storage tank 1 and the filter tank 2 for drip irrigation.

[0025] The filter unit in the filter pool 2 is arranged above the stirring rod 10, and each includes a filter screen 11 and an activated carbon adsorption layer 12, wherein the filter screen 11 in the filter pool 2 is at the bottom, and the filter screen 11 in the reservoir 1 is at the top. The filter screen 11 can filter debris or saline-alkali sediments in rainwater, and the activated carbon adsorption layer 12 can adsorb impurities such as pollutants.

[0026] A feeding pipe 13 and a sewage pipe 14 are arranged below the filter screen 11 in the filter pool 2 and through the side wall of the filter pool 2. A motor 15 is arranged on the outer wall of the filter pool 2. A stirring rod 10 is rotatably arranged at the bottom of the filter pool 2. The stirring rod 10 includes a stirring shaft 16 arranged at the output end of the motor 15, and a plurality of stirring paddles 17 are arranged on the outer wall of the stirring shaft 16.

[0027] Additives are added to the bottom of the filter tank 2 through the feeding pipe 13, and the motor 15 is started to drive the stirring shaft 16 and the stirring paddle 17 to rotate, so that the saline and alkali water and the additives are fully mixed and reacted. The precipitate produced by the reaction is filtered at the bottom of the filter tank 2 and then discharged through the sewage pipe 14.

[0028] A plurality of drip irrigation pipes 4 are arranged on both sides of the delivery pipe 3, and a plurality of drip irrigation holes 22 are arranged on the bottom wall of the drip irrigation pipe 4. The clean water delivered by the delivery pipe 3 is diverted to the inside of the plurality of drip irrigation pipes 4, and then drips out from the drip irrigation holes 22. Since a planting area 5 is arranged below the drip irrigation pipe 4, the water falls on the planting area 5 below.

[0029] The planting area 5 includes a straw layer 6 on the top, which can further prevent water evaporation. A soil layer 7 is arranged below the straw layer 6. Forage grass seeds are planted in the soil layer 7. When growing, the seedlings pass through the straw layer 6 and grow upward.

[0030] A guide plate 8 is inclined at the bottom of the soil layer 7, and a drainage net 9 is arranged at the inclined lower end of the guide plate 8. A connecting pipe 23 is arranged at the bottom of the drainage net 9, and the connecting pipe 23 is connected to the bottom of the filter tank 2. Forage seeds are planted inside the soil layer 7. The inclined upper end of the guide plate 8 is close to the water reservoir 1, and the inclined lower end is close to the filter tank 2.

[0031] Most of the water from drip irrigation is absorbed by the grass, and a small amount of water that is not absorbed in time penetrates into the guide plate 8 and flows along the inclined direction of the guide plate 8 to the top of the leakage net 9. The leakage net 9 is a water filter net with fine pores. The soil is intercepted by the leakage net 9, and the water enters the bottom of the filter tank 2 along the connecting pipe 23. After filtration, it is recycled to the drip irrigation pipe 4 for drip irrigation.

[0032] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. 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.

Claims

1. A water-saving drip irrigation device for planting grass in saline-alkali land, comprising a reservoir (1) and a filter tank (2), characterized in that: The water storage tank (1) and the filter tank (2) are connected to each other via a delivery pipe (3); a plurality of drip irrigation pipes (4) are arranged on both sides of the delivery pipe (3); a planting area (5) is arranged below the drip irrigation pipe (4); the planting area (5) includes a straw layer (6) at the top; a soil layer (7) is arranged below the straw layer (6); a guide plate (8) is arranged at an angle at the bottom of the soil layer (7); a water leakage net (9) is arranged at the inclined lower end of the guide plate (8); the water leakage net (9) is arranged in communication with the bottom of the filter tank (2); a stirring rod (10) is rotatably arranged at the bottom of the filter tank (2); and filtering units are arranged inside the water storage tank (1) and the filter tank (2).

2. The water-saving drip irrigation device for planting grass in saline-alkali land according to claim 1, characterized in that: An opening is provided at the top of the water reservoir (1), and a filter unit in the filter pool (2) is provided above the stirring rod (10), and both include a filter screen (11) and an activated carbon adsorption layer (12), wherein the filter screen (11) in the filter pool (2) is at the bottom, and the filter screen (11) in the water reservoir (1) is at the top.

3. The water-saving drip irrigation device for planting grass in saline-alkali land according to claim 2, characterized in that: A feeding pipe (13) and a sewage discharge pipe (14) are arranged below the filter screen (11) in the filter pool (2) and through the side wall of the filter pool (2); a motor (15) is arranged on the outer wall of the filter pool (2); the stirring rod (10) comprises a stirring shaft (16) arranged at the output end of the motor (15); and a plurality of stirring paddles (17) are arranged on the outer wall of the stirring shaft (16).

4. The water-saving drip irrigation device for planting grass in saline-alkali land according to claim 3, characterized in that: One end of the delivery pipe (3) penetrates the side wall of the water storage tank (1) and is arranged below the filter unit, and the other end penetrates the side wall of the filter tank (2) and is arranged above the filter unit. A plurality of support columns (18) are arranged below the delivery pipe (3), a fastening ring (19) is arranged on the top wall of the support column (18), and the delivery pipe (3) is arranged inside the fastening ring (19).

5. The water-saving drip irrigation device for planting grass in saline-alkali land according to claim 4, characterized in that: Both ends of the delivery pipe (3) are provided with a solenoid valve (20) and a pressure pump (21); the bottom wall of the drip irrigation pipe (4) is provided with a plurality of drip irrigation holes (22); the bottom of the water leakage net (9) is connected with a connecting pipe (23); and the connecting pipe (23) is connected with the bottom of the filter pool (2).

6. The water-saving drip irrigation device for planting grass in saline-alkali land according to claim 5, characterized in that: The forage grass seeds are planted inside the soil layer (7), the inclined upper end of the guide plate (8) is close to the water storage tank (1), and the inclined lower end thereof is close to the filter tank (2).

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