A drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration

Abstract

This utility model discloses a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration, comprising: a fixed platform, cultivation pots, and a water collection component. Compared with existing technologies, the water collection component fully utilizes the large diurnal temperature range characteristic of mining areas. At night, the device efficiently condenses water vapor in the air using a condensation plate. The condensed water is collected in a storage container, providing a continuous water supply for the seedlings. It eliminates the need for complete external watering, conserving water resources, adapting to the harsh water-scarce environment of mining areas, and increasing the survival rate of seedlings in drought conditions. The moisture-retaining film significantly enhances the moisture retention effect of the cultivation pots, effectively reducing water evaporation and maintaining soil moisture. It also ensures air circulation within the pots, preventing root hypoxia caused by airtightness, which is beneficial to the overall growth and development of the seedlings.

Description

Technical Field

[0001] This utility model relates to the field of mine ecological restoration technology, and in particular to a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration. Background Technology

[0002] Mining operations damage existing vegetation and soil structure, leading to the deterioration of the mining area's ecological environment and necessitating ecological restoration. Phytoremediation is an important means of mine ecological restoration, and the cultivation of plant seedlings is a crucial step for successful phytoremediation.

[0003] Chinese Patent No. CN219644636U discloses a mine ecological restoration device, comprising: a positioning frame placed on the mine mountain, the inner cavity of the positioning frame forming a planting area; at least one positioning component installed on the positioning frame for detachably connecting the positioning frame to the mine mountain; a planting unit located within the planting area, comprising two positioning plates disposed on two opposite side walls of the positioning frame, and two movable plates located between the two positioning plates and movable thereon; the positioning plates and the movable plates are perpendicular to each other, and the two positioning plates and the two movable plates form a planting chamber for planting plants; and a sliding component installed at the lower part of the planting chamber and movable on the movable plates.

[0004] As with the aforementioned devices, existing technologies mostly assist in fixing seedlings to the mountainside in mines, failing to fully consider the challenges posed by the unique climate of mining areas to seedling cultivation. Mining areas are typically characterized by arid climates, scarce rainfall, and high evaporation rates. Simultaneously, the soil often exhibits poor water retention, leading to rapid moisture loss. In such an environment, seedlings struggle to continuously obtain sufficient moisture from the soil during cultivation, easily wilting due to water shortage, severely impacting their survival rate and failing to meet the continuous water requirements of seedlings in the arid environment of mines.

[0005] Furthermore, existing cultivation devices generally lack targeted moisture-retaining structures, making it impossible to effectively maintain humidity around the seedling roots. Unstable root humidity, fluctuating between high and low levels, not only affects normal root respiration and growth but may also lead to root rot or damage due to dryness, further hindering the smooth progress of plant seedling cultivation in mine remediation. Utility Model Content

[0006] The main purpose of this invention is to provide a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration, which can effectively solve the problems in the background technology.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration, comprising:

[0008] Fixed platform;

[0009] A cultivation basin, which is fixed to the upper side wall of a fixed platform by bolts, contains a substrate, and has a moisture-retaining film on its top;

[0010] A water collection component is installed above a fixed platform. The water collection component is used to collect condensate generated due to the large temperature difference between day and night, and to provide a supplementary water source for the seedlings.

[0011] The water collection assembly includes four support rods arranged around the side wall of the fixed platform. A water storage device is fixedly connected to the upper end of each support rod. The water storage device is annular and coaxially arranged with the cultivation pot. A condensation plate is fixedly sleeved on the outer side wall of the water storage device.

[0012] As a further description of the above technical solution, a drip irrigation pipe is provided above the substrate, and multiple branch drippers are evenly arranged on the drip irrigation pipe.

[0013] As a further description of the above technical solution, the lower side wall of the water storage device has a water inlet, and a water supply pipe is connected to the water inlet. The other end of the water supply pipe extends into the cultivation pot and is connected to the drip irrigation pipe.

[0014] As a further description of the above technical solution, the water supply pipe is equipped with a control valve.

[0015] As a further description of the above technical solution, the upper side wall of the water storage component is provided with multiple water inlets, and a filter screen is embedded in each water inlet.

[0016] As a further description of the above technical solution, the condenser plate is funnel-shaped, the condenser plate is made of aluminum alloy, and the inner side of the condenser plate is provided with a hydrophobic coating.

[0017] As a further description of the above technical solution, the moisturizing film is made of breathable non-woven fabric, and the middle of the moisturizing film has an opening that matches the thickness of the seedling stem.

[0018] As a further description of the above technical solution, through holes are provided at the four corners of the fixed platform, and ground nails are provided in the through holes.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By incorporating a water collection system, the system fully utilizes the significant diurnal temperature range characteristic of mining areas. At night, the condenser plate efficiently condenses moisture in the air. The condensed water is collected in a storage container, providing a continuous water supply for the seedlings. This eliminates the need for complete external water replenishment, conserving water resources, adapting to the harsh water-scarce environment of mining areas, and increasing the survival rate of seedlings in arid conditions.

[0021] 2. The moisturizing film significantly enhances the moisture retention of the cultivation pot, effectively reducing water evaporation and maintaining soil moisture. It also ensures air circulation within the pot, preventing root hypoxia caused by airtightness, which is beneficial for the overall growth and development of seedlings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration according to this utility model.

[0023] Figure 2 This is a schematic diagram of the water storage component of a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration according to this utility model.

[0024] Figure 3 This is a cross-sectional view of a cultivation pot for a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration, according to this utility model.

[0025] Figure 4 This is a schematic diagram of the moisturizing membrane structure of a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration according to this utility model;

[0026] Figure 5 This is a schematic diagram of the ground nail structure of a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration according to this utility model.

[0027] In the diagram: 1. Fixed platform; 2. Cultivation pot; 21. Substrate; 22. Moisturizing film; 3. Water collection assembly; 31. Support rod; 32. Water storage device; 33. Condensation plate; 4. Drip irrigation pipe; 41. Branch dripper; 320. Water inlet; 5. Water supply pipe; 51. Control valve; 321. Water inlet; 322. Filter screen; 11. Through hole; 6. Ground nail. Detailed Implementation

[0028] To make the technical means, creative features, and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figure 1-5 This utility model provides a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration, comprising: a fixed platform 1, a cultivation pot 2, and a water collection component 3. The cultivation pot 2 is fixed to the upper side wall of the fixed platform 1 by bolts. The cultivation pot 2 contains a substrate 21, and a moisture-retaining film 22 is provided on the top of the cultivation pot 2. The water collection component 3 is set above the fixed platform 1 and is used to collect condensate generated due to the large temperature difference between day and night to provide supplemental water for the seedlings. The water collection component 3 includes four support rods 31 arranged around the upper side wall of the fixed platform 1. A water storage component 32 is fixedly connected to the upper end of the support rods 31. The water storage component 32 is annular and coaxially arranged with the cultivation pot 2. A condensation plate 33 is fixedly sleeved on the outer side wall of the water storage component 32.

[0032] To further explain, the fixed platform 1 serves as the supporting base for the entire device. It is preferably made of Q235 low-carbon steel plate, possessing sufficient load-bearing strength to adapt to complex terrains such as mine gravel and gentle slopes, providing a stable installation foundation for the cultivation pots 2 and the water collection component 3. The cultivation pots 2 are detachably fixed to the upper side wall of the fixed platform 1 with bolts, facilitating later replacement of the substrate 21 or transplanting of seedlings. The substrate 21 filled in the pots provides a growth carrier for the seedling roots; it is a cultivation soil mixed with humus, vermiculite, water-retaining agent, and local mineral soil. The moisture-retaining membrane 22 is fixed to the top of the cultivation pots 2 with screws, creating a moisture-retaining space and reducing direct evaporation of moisture from the substrate 21. The water collection component 3 is the core of the device's "non-reliant on external continuous water replenishment." Four stainless steel support rods 31 vertically support the annular water storage component 32, which is coaxially arranged with the cultivation pots 2, ensuring that the condensate collection area covers the area above the cultivation pots 2. The condensation plate 33 utilizes the diurnal temperature difference in the mine to condense water vapor, providing a supplementary water source for the seedlings.

[0033] To further explain, the water storage component 32 adopts a double-layer structure, with an inner PE water storage cavity and an outer polyurethane insulation layer. In addition, the upper side wall of the water storage component 32 is covered with a PET sun-protective film except for the water inlet 321. The insulation layer blocks the conduction of high external temperatures, and the sun-protective film reduces the heating caused by direct sunlight. This allows the daily evaporation of water in the water storage component 32 to be controlled, ensuring that the stored condensate and rainwater can be stably supplied to the seedlings and avoiding the loss of water supply due to high daytime temperatures.

[0034] To further explain, a drip irrigation pipe 4 is installed above the substrate 21. Multiple branch drippers 41 are evenly arranged on the drip irrigation pipe 4. The drip irrigation pipe 4 is made of PE material and is laid in a ring above the substrate 21. The branch drippers 41 can slowly and evenly drip water onto the surface of the substrate 21 and around the seedling roots, avoiding the "surface water accumulation and deep water shortage" or rapid water loss caused by traditional watering, and ensuring that the roots continuously obtain an appropriate amount of water.

[0035] To further explain, the lower side wall of the water storage device 32 has a water inlet 320, and a water supply pipe 5 is connected to the water inlet 320. The other end of the water supply pipe 5 extends into the cultivation pot 2 and is connected to the drip irrigation pipe 4. Under the action of gravity, the water in the water storage device 32 enters the water supply pipe 5 through the water inlet 320, and then enters the drip irrigation pipe 4 for drip irrigation.

[0036] To further explain, the water supply pipe 5 is equipped with a control valve 51, which is a PVC ball valve that allows for manual adjustment of the water flow. Staff can flexibly control the watering duration based on the moisture content of the substrate 21, preventing waterlogging that could lead to root rot, or insufficient watering that could cause seedling dehydration. This is particularly suitable for addressing the varying water requirements of different seasons in mining areas.

[0037] To further explain, the upper side wall of the water storage unit 32 is provided with multiple water inlets 321, and a filter screen 322 is embedded in each water inlet 321. The cooperation of the water inlets 321 and the filter screen 322 can realize the collection of dual water sources of condensate and rainwater, and ensure the smooth flow of the pipeline. Condensate and rainwater can flow into the water storage unit 32 through the water inlets 321. The filter screen 322 can filter impurities such as gravel, fallen leaves, and dust in the rainwater, preventing them from entering the water supply pipe 5 or the drip irrigation pipe 4 and causing blockage, thus reducing the maintenance frequency of the device.

[0038] To further explain, the condenser plate 33 is funnel-shaped and made of aluminum alloy. The inner surface of the condenser plate 33 has a hydrophobic coating. Its funnel shape, wider at the top and narrower at the bottom, increases the contact area with air. The funnel structure also guides condensate to flow quickly to the water storage container 32, which is made of 6061 aluminum alloy, known for its high thermal conductivity. This allows it to cool rapidly to below the air dew point temperature at night, promoting water vapor condensation. The inner surface is coated with a hydrophobic polytetrafluoroethylene coating, allowing condensate droplets to slide off quickly, preventing secondary evaporation and improving water collection efficiency.

[0039] To further explain, the inner wall of the funnel-shaped condenser plate 33 is an inclined flow guide surface, and its lower edge is completely in contact with the water inlet 321 area of ​​the upper side wall of the annular water storage component 32. At night, after the water vapor condenses into beads on the surface of the condenser plate 33, it naturally slides down along the inclined surface of the hydrophobic coating and flows directly into the water inlet 321 of the water storage component 32, thus avoiding the condensate from dripping and being lost.

[0040] To further explain, the moisturizing film 22 is made of breathable non-woven fabric. The center of the moisturizing film 22 has an opening that matches the thickness of the seedling stem. The moisturizing film 22 can reduce the evaporation of water from the substrate 21 while ensuring air circulation in the cultivation pot 2, preventing the roots from rotting due to lack of oxygen in a sealed environment. The edges of the opening of the moisturizing film 22 are sewn with elastic bands, which can adapt to the growth of the seedling stem diameter, reducing water loss without restricting the growth of the seedling.

[0041] To further explain, each of the four corners of the fixed platform 1 has a through hole 11, and a ground nail 6 is installed in the through hole 11. The ground nail 6 is made of Q235 steel. When in use, the ground nail 6 is passed through the through hole 11 and hammered vertically into the surface of the mine. This can effectively resist the strong winds in the mining area and prevent the device from tipping over and damaging the seedlings.

[0042] It should be noted that this utility model is a drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration. When using it, select a flat area within the mine to be restored and remove surface debris such as gravel and weeds. Place the fixing platform 1 flat at the target location, aligning the four corner holes 11 with the solid surface area. Take four ground nails 6, pass them through the holes 11, and hammer them vertically into the ground below the surface. In hard rock areas, drill holes first, then insert the ground nails 6. Ensure the fixing platform 1 is in close contact with the ground surface; it is ready when shaking the fixing platform 1 by hand shows no significant displacement. Remove the moisture-retaining film 22 from the top of the cultivation pot 2 and fill the cultivation pot 2 with the pre-prepared substrate 21. Plant drought-resistant seedlings for mine restoration, such as alfalfa, sea buckthorn, or Masson pine, in the center of the substrate 21, cover with the substrate 21 to fix the root system, and gently press the substrate 21 to stabilize the seedlings. Replace the moisturizing film 22 on top of the cultivation pot 2 and secure it with screws. Align the opening in the middle of the film with the seedling stem and slowly slide it in, ensuring the opening fits snugly against the stem without any noticeable gaps. In the mine, the temperature difference between day and night is significant. After dusk, the air temperature drops, and when water vapor comes into contact with the aluminum alloy condenser plate 33, it quickly condenses into water droplets. The water droplets slide down the hydrophobic coating of the funnel-shaped condenser plate 33 and flow into the annular water storage container 32 for storage. During the day, when it rains, rainwater falls on the condenser plate 33 and flows along the plate into the water storage container 32. After being filtered by the filter screen 322 of the inlet 321, it is stored in the water storage container 32. Observe the condition of the substrate 21 in the cultivation pot 2 every morning. If the surface of the substrate 21 turns white and crumbles easily when squeezed, it needs to be watered. When adding water, open the control valve 51 on the water supply pipe 5. The water in the water storage device 32 flows into the water supply pipe 5 through the water inlet 320 and is then transported to the drip irrigation pipe 4. The branch dripper 41 evenly drips the water onto the surface of the substrate 21. After observing that the surface of the substrate 21 is wet, close the control valve 51.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for cultivating plant seedlings for mine restoration in drought and moisture preservation, characterized in that, include: Fixed platform (1); The cultivation pot (2) is fixed to the upper side wall of the fixed platform (1) by bolts. The cultivation pot (2) contains a substrate (21) and a moisturizing film (22) is provided on the top of the cultivation pot (2). Water collection component (3), the water collection component (3) is set above the fixed platform (1), the water collection component (3) is used to collect condensate generated due to the large temperature difference between day and night, and provide supplementary water source for seedlings; The water collection assembly (3) includes four support rods (31) arranged around the upper side wall of the fixed platform (1). The upper end of the support rods (31) is fixedly connected to a water storage component (32). The water storage component (32) is annular and coaxially arranged with the cultivation pot (2). A condenser plate (33) is fixedly sleeved on the outer side wall of the water storage component (32).

2. The device for cultivating plant seedlings for mine restoration according to claim 1, characterized in that: A drip irrigation pipe (4) is provided above the substrate (21), and multiple branch drippers (41) are evenly arranged on the drip irrigation pipe (4).

3. The drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration according to claim 2, characterized in that: The water storage device (32) has a water inlet (320) on its lower side wall. A water supply pipe (5) is connected to the water inlet (320). The other end of the water supply pipe (5) extends into the cultivation pot (2) and is connected to the drip irrigation pipe (4).

4. The device for cultivating plant seedlings against drought and moisture preservation for mine restoration according to claim 3, characterized in that: The water supply pipe (5) is equipped with a control valve (51).

5. The device for cultivating plant seedlings for mine restoration according to claim 1, characterized in that: The upper side wall of the water storage component (32) is provided with multiple water inlets (321), and a filter screen (322) is embedded in the water inlet (321).

6. The device for cultivating plant seedlings for mine restoration according to claim 1, characterized in that: The condenser plate (33) is funnel-shaped and made of aluminum alloy. The inner side of the condenser plate (33) is provided with a hydrophobic coating.

7. The drought-resistant and moisture-retaining cultivation device for plant seedlings used in mine restoration according to claim 1, characterized in that: The moisturizing film (22) is made of breathable non-woven fabric, and the middle part of the moisturizing film (22) has an opening that matches the thickness of the seedling stem.

8. The device for cultivating plant seedlings for mine restoration according to claim 1, characterized in that: The fixed platform (1) has through holes (11) at each of its four corners, and ground nails (6) are installed in the through holes (11).

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