Mine repair rainwater collection and spraying device

Abstract

The present invention relates to a rainwater collection and spraying device for mine restoration, including a collection mechanism and a spraying mechanism, wherein the collection mechanism is used to collect rainwater, and the spraying mechanism is used to extract the rainwater collected by the collection mechanism and spray it on the nearby area, wherein the collection mechanism includes a water collecting trough and a water guide sleeve arranged on the water collecting trough, wherein the water guide sleeve includes a plurality of water-permeable units connected in series longitudinally, wherein the water-permeable unit includes an outer cylinder and an inner cylinder, wherein the side wall of the upper half of the outer cylinder is provided with a plurality of first water inlet holes for rainwater to penetrate inwardly, wherein the inner cylinder is arranged in the outer cylinder, wherein the length of the inner cylinder is less than the length of the outer cylinder, wherein the outer wall of the inner cylinder is sealed with the inner wall of the outer cylinder and can slide in the outer cylinder, and a floating body is arranged in the upper end of the inner cylinder. The present technical scheme can collect rainwater that penetrates into the soil at different depths, and after the water guide sleeve is inserted into the soil layer, a pile structure for fixing the soil layer will be formed to reinforce the soil layer.

Description

Technical Field

[0001] The invention relates to the technical field of water and soil restoration, and in particular to a rainwater collection and spraying device for mine restoration. Background Art

[0002] There are about 800,000 mines in my country, of which about 400,000 mines need to be repaired or restored due to ecological damage. The most important item in mine restoration is vegetation restoration. For mining development areas polluted by heavy metals, the ecological method of vegetation planting is more effective. There are two ways to plant vegetation: the first is to directly cover the mining development area with vegetation; the second is to use soil-covered vegetation. Regardless of which method is used, daily irrigation of vegetation is required.

[0003] The water used for vegetation irrigation is mostly collected rainwater. Currently, the rainwater collection method mostly adopts drainage structures such as digging ditches in the restoration area for collection. Since the soil structure in the restoration area is loose, especially in the early stage of restoration, the surface layer of the soil is composed of sand and gravel, which has no water isolation and water retention capabilities. The ditches and other facilities can only collect rainwater flowing on the surface of the soil. Since the soil structure is loose, rainwater can easily penetrate downwards. The collection effect of collecting rainwater by ditches is extremely low. Rainwater can easily penetrate into the lower layer of the soil, accumulate in the lower soil and damage the stability of the soil structure in the restoration area. Disasters such as landslides are very likely to occur in this area. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a rainwater collection and spraying device for mine restoration to solve the problem that the side ditch facilities in the prior art have low efficiency in collecting rainwater in loose soil and rainwater easily penetrates downward to cause disasters.

[0005] The present invention is achieved through the following technical solutions:

[0006] A rainwater collection and spraying device for mine restoration comprises a collection mechanism and a spraying mechanism, wherein the collection mechanism is used to collect rainwater, and the spraying mechanism is used to extract the rainwater collected by the collection mechanism and spray it on a nearby area, wherein the collection mechanism comprises a water collecting trough and a water guiding sleeve arranged on the water collecting trough, wherein the water guiding sleeve comprises a plurality of water permeable units connected in series longitudinally, wherein the water permeable units comprise an outer cylinder and an inner cylinder, wherein a plurality of first water inlet holes for rainwater to penetrate inward are formed on the side wall of the upper half of the outer cylinder, wherein the inner cylinder is arranged in the outer cylinder, wherein the length of the inner cylinder is less than the length of the outer cylinder, wherein the outer wall of the inner cylinder is sealed with the inner wall of the outer cylinder and can slide in the outer cylinder, and a float is arranged in the upper end of the inner cylinder.

[0007] It is further defined that a first filter plate is disposed outside the outer cylinder, and the first filter plate is enclosed outside the first water inlet hole.

[0008] It is further defined that the upper end of the inner cylinder is provided with an inwardly folded flange, and the float is fixedly installed at the bottom of the flange.

[0009] It is further defined that a filter is also provided outside the outer cylinder, and the filter includes an upper mounting ring and a lower mounting ring, and the upper mounting ring and the lower mounting ring are both mounted on the outer cylinder and are respectively located on the upper and lower sides of the first water inlet hole, and a baffle is provided between the upper mounting ring and the lower mounting ring, and the two side edges of the baffle are respectively connected to the outer side edges of the upper mounting ring and the lower mounting ring, and a plurality of second water inlet holes are opened on the baffle.

[0010] It is further defined that a second filter plate is disposed inside the baffle.

[0011] It is further defined that an annular boss is provided at the middle portion and the top portion of the outer side of the outer cylinder.

[0012] It is further defined that an annular limiting groove is provided on the top of the outer cylinder, an annular convex ridge is provided on the bottom of the outer cylinder, and two adjacent outer cylinders are clamped together by the annular limiting groove and the annular convex ridge.

[0013] It is further defined that the spray mechanism includes a water pump and a rotating spray head, the inlet of the water pump is connected to a water inlet pipe, the water inlet pipe extends downward into the water collection tank, and the rotating spray head is connected to the outlet of the water pump through a pipeline.

[0014] It is further defined that the rotating nozzle includes a rotating ring, a guide groove is opened on the inner wall of the rotating ring, and a plurality of water guide pipes are arranged on the side wall of the rotating ring. The plurality of water guide pipes are evenly distributed radially, and the inner end is connected with the guide groove, and the outer end is a closed structure. The water guide pipe is provided with a plurality of water spray holes along the length direction, and the plurality of water spray holes have the same water spraying direction, which is inclined upward; a water diversion pipe is arranged in the rotating ring, and the lower end of the water diversion pipe is connected with the water pump outlet through a pipeline, and the upper end is a closed structure. A water permeable hole is opened on the water diversion pipe, and the water is connected with the guide groove through the water permeable hole.

[0015] It is further defined that clamping rings are provided on the outer sides of the upper and lower ends of the water diversion pipe, the two clamping rings are respectively located on the upper and lower sides of the rotating ring, and rotating support members are respectively provided between the two clamping rings and the limiting ring.

[0016] The beneficial effects of the present invention are:

[0017] The rainwater collection and spraying device for mine restoration collects rainwater by burying a water guide sleeve in the soil layer, and the water collection trough is used to store the rainwater collected by the water guide sleeve. The water guide sleeve is composed of a plurality of water-permeable units, and the plurality of water-permeable units will be located at different depths in the soil layer. A first water inlet hole connected to the outer wall of the upper part of the outer cylinder is opened, which will serve as an infiltration channel for rainwater. When the water level in the water guide sleeve rises, the float will be lifted up by buoyancy, and then the inner cylinder will be driven to move upward to close the first water inlet hole, so that the water-permeable unit closing the first water inlet hole serves as an extension of the water collection trough, and can collect rainwater that penetrates into the soil at different depths. After the water guide sleeve is inserted into the soil layer, a pile structure for fixing the soil layer will be formed to reinforce the soil layer.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 It is a front view of the present invention;

[0021] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0022] Figure 4 for Figure 3 A magnified view of middle;

[0023] Figure 5 for Figure 3 Enlarged view of middle B;

[0024] In the figure: 1. spray mechanism; 2. water collecting tank; 3. water permeable unit; 4. outer cylinder; 5. inner cylinder; 6. first water inlet hole; 7. float; 8. first filter plate; 9. flange; 10. convex ring; 11. filter; 12. upper mounting ring; 13. lower mounting ring; 14. baffle; 15. second water inlet hole; 16. second filter plate; 17. annular boss; 18. connecting flange; 19. annular convex rib; 20. water pump; 21. rotating nozzle; 22. water inlet pipe; 23. sealing cover; 24. exhaust pipe; 25. protective cover; 26. support rod; 27. cover plate; 28. rotating ring; 29. ​​guide groove; 30. water guide pipe; 31. water guide pipe; 32. water permeable hole; 33. clamping ring; 34. rotating support; 35. water spray hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0030] See also Figure 1-5The present invention provides a technical solution: a rainwater collection and spraying device for mine restoration, comprising a collection mechanism and a spraying mechanism 1, wherein the collection mechanism is used to collect rainwater, and the spraying mechanism 1 is used to extract the rainwater collected by the collection mechanism and spray it on the nearby area, the collection mechanism comprises a water collecting trough 2 and a water guiding sleeve arranged on the water collecting trough 2, the water guiding sleeve comprises a plurality of water permeable units 3 connected in series longitudinally, the water permeable unit 3 comprises an outer cylinder 4 and an inner cylinder 5, the upper half side wall of the outer cylinder 4 is provided with a plurality of first water inlet holes 6 for rainwater to penetrate inwardly, the inner cylinder 5 is arranged in the outer cylinder 4, the length of the inner cylinder 5 is less than the length of the outer cylinder 4, the outer wall of the inner cylinder 5 is sealed with the inner wall of the outer cylinder 4 and can slide in the outer cylinder 4, and a float 7 is arranged in the upper end of the inner cylinder 5.

[0031] The water guide sleeve is buried in the soil layer to collect rainwater, and the water collection tank 2 is used to store the rainwater collected by the water guide sleeve. The water guide sleeve is composed of multiple water-permeable units 3, and the multiple water-permeable units 3 will be located at different depths in the soil layer. A first water inlet hole 6 is opened on the upper outer wall of the outer cylinder 4, which will serve as an infiltration channel for rainwater. When rainfall occurs, rainwater will quickly penetrate the entire soil layer downward. Each water-permeable unit 3 will correspond to a soil layer of different depths. The rainwater infiltrated in the soil layer will enter the water guide sleeve through the first water inlet hole 6. When the water level in the water guide sleeve rises, the float 7 will be lifted up by buoyancy. The float 7 can be made of lightweight materials such as foam boards, which can obtain greater buoyancy, and can As the liquid level in the water-conducting sleeve rises, the inner cylinder 5 is driven to move upward to close the first water inlet hole 6, so that the permeable unit 3 that closes the first water inlet hole 6 serves as an extension of the water collecting trough 2, and can collect rainwater that penetrates into the soil at different depths, and can collect and store rainwater under a certain precipitation condition. The spray device can draw out the water in the water collecting trough 2 to spray the surrounding area when it is necessary to irrigate the area; after spraying, the water level in the water-conducting sleeve will drop, that is, after the liquid level in the corresponding permeable unit 3 drops, the inner sleeve in the permeable unit 3 will slide downward without being affected by buoyancy, so that the first permeable hole 32 opened on the outer cylinder 4 is exposed, so that it can restore its water collecting function.

[0032] The specific method is as follows: the area to be repaired is measured to obtain the area of ​​the area, the area is divided into a number of unit areas, a device is buried in each unit area to collect rainwater received by the soil in the unit area, the number of permeable units 3 is selected according to the soil layer depth of each unit area, and the length of the water-conducting sleeve is adjusted according to the soil layer depth. After the water-conducting sleeve is inserted into the soil layer, a pile structure will be formed, and cables can be set between multiple water-conducting sleeves for reinforcement. Multiple fixed structures are formed within the area of ​​the area by multiple water-conducting sleeves, so that the soil layer structure in the area is reinforced to reduce the probability of disasters after the soil layer is flooded.

[0033] In this embodiment, a first filter plate 8 is disposed outside the outer cylinder 4 , and the first filter plate 8 is surrounded outside the first water inlet hole 6 .

[0034] The first filter plate 8 is enclosed outside the first water inlet hole 6 to shield the first water inlet hole 6. The first filter plate 8 can be made of a stainless steel perforated plate or a filter mesh, which can effectively block the entry of large particles of sand and gravel, reduce the sediment contained in the collected rainwater, reduce the amount of sedimentation in the sump 2, and reduce the impact on the water output of the spraying device.

[0035] In this embodiment, the upper end of the inner cylinder 5 is provided with an inwardly folded flange 9 , and the floating body 7 is fixedly installed at the bottom of the flange 9 .

[0036] The flange 9 can be integrally formed and arranged on the inner cylinder 5, and the float 7 can be fixedly installed at the bottom of the flange by gluing or bolting. The float 7 itself has a small weight, and the force it is subjected to is mainly the upward buoyancy. It is arranged at the bottom of the flange 9 and can effectively offset the buoyancy under the obstruction of the flange 9, thereby preventing the buoyancy from tearing the connection position of the float 7 and improving the installation structure strength of the float 7; at the same time, a convex ring 10 is arranged on the inner edge of the upper end of the outer sleeve, and the convex ring 10 can be used as a limiting structure at the lower end of the inner sleeve to support the inner sleeve and prevent the inner sleeve from sliding downward when it is empty.

[0037] In this embodiment, a filter 11 is further provided outside the outer cylinder 4, and the filter 11 includes an upper mounting ring 12 and a lower mounting ring 13. The upper mounting ring 12 and the lower mounting ring 13 are both mounted on the outer cylinder 4 and are respectively located on the upper and lower sides of the first water inlet hole 6. A baffle 14 is provided between the upper mounting ring 12 and the lower mounting ring 13. The two side edges of the baffle 14 are respectively connected to the outer side edges of the upper mounting ring 12 and the lower mounting ring 13, and a plurality of second water inlet holes 15 are opened on the baffle 14.

[0038] The filter 11 is composed of an upper mounting ring 12, a lower mounting ring 13 and a baffle 14 to form an annular cavity structure, and is sleeved outside the first water inlet hole 6 to perform preliminary filtration on the water entering the water guide sleeve. A second water inlet hole 15 is opened on the baffle 14 as an entry channel for the infiltrated water. The annular cavity structure can be used to fill adsorption materials such as activated carbon to adsorb impurities in the incoming infiltrated water, so as to further reduce the impurity content contained in the incoming water.

[0039] In this embodiment, a second filter plate 16 is disposed inside the baffle plate 14 .

[0040] The second filter plate 16 is arranged on the inner side of the baffle 14. The second filter plate 16 can be made of a stainless steel perforated plate or a filter mesh. The second filter plate 16 and the first filter plate 8 form a clamping structure located on the inner and outer sides of the filter 11, which is used to fix the adsorption material filled in the filter 11, so that the filling shape of the adsorption material can be fixed in the filter 11. At the same time, the second filter plate 16 can also perform preliminary filtration on the infiltrated water entering from the second water inlet hole 15 to reduce the burden of the filling material in the filter 11.

[0041] In this embodiment, an annular boss 17 is provided at the middle and top of the outer side of the outer cylinder 4 .

[0042] Two annular bosses 17 protrude outward, and the inner edges of the upper mounting ring 12 and the lower mounting ring 13 are respectively clamped and fixed on the outer sides of the two annular bosses 17. The annular bosses 17 are used as a fixing structure for the filter 11 on the outer sleeve to improve the stability of the installation structure between the filter 11 and the outer sleeve; connecting flanges 18 can also be provided on the upper and lower outer edges of the outer sleeve and the opening outer edge of the water collecting tank 2. The two outer sleeves can be connected in series and the lower end of the outer sleeve can be connected to the water collecting tank 2 through the connecting flanges 18 and bolts.

[0043] In this embodiment, an annular limiting groove is formed on the top of the outer cylinder 4 , and an annular convex ridge 19 is provided on the bottom of the outer cylinder 4 . Two adjacent outer cylinders 4 are engaged and connected by the annular limiting groove and the annular convex ridge 19 .

[0044] Annular limit grooves and annular convex ridges 19 are respectively provided on the upper and lower end surfaces of the outer cylinder body 4. The opposite ends of the two adjacent outer cylinder bodies 4 in the series state are clamped and positioned by the annular limit grooves and the annular convex ridges 19, which can form a horizontal movement limit matching structure, thereby improving the structural stability after installation, and can serve as a positioning structure between the two adjacent outer sleeves during installation, making the installation more convenient.

[0045] In this embodiment, the spray mechanism 1 includes a water pump 20 and a rotating nozzle 21. The inlet of the water pump 20 is connected to a water inlet pipe 22, and the water inlet pipe 22 extends downward into the water collection tank 2. The rotating nozzle 21 is connected to the outlet of the water pump 20 through a pipeline.

[0046] A cover 23 can be provided on the top of the water guide sleeve for sealing. The water guide sleeve can prevent foreign objects from falling into the cover 23 through the cover, which plays a protective role. An exhaust pipe 24 is also provided on the cover to connect the inside of the water guide sleeve with the outside to prevent the internal air from being squeezed and affecting the infiltration of rainwater. A protective cover 25 is provided on the upper end of the exhaust pipe 24 as a shielding structure; and the cover is used as the installation basis of the water pump 20. A plurality of support rods 26 are also provided on the cover, and a cover plate 27 is installed by supporting the plurality of support rods 26. The cover plate 27 shields and protects the water pump 20, and plays a protective role on the water pump 20. The rotating nozzle 21 is arranged with the cover plate 2 7, the rotating nozzle 21 is connected to the outlet of the water pump 20 through the cover plate 27 through a pipeline, one end of the water inlet pipe 22 is connected to the inlet of the water pump 20, and the other end extends downward into the water collecting tank 2, and support springs are arranged between the rotating nozzle 21 and the cover plate 27 and between the water inlet pipe 22 and the cover body, which are used to absorb the recoil force of the rotating nozzle 21 when spraying water, and absorb the vibration of the water inlet pipe 22 in the working state, wherein the bottom of the water collecting tank 2 can be a downwardly convex arc structure, which has a lowest point, and the lower end of the water inlet pipe 22 extends into the water collecting tank 2 close to the lowest point, which can fully discharge the water in the water collecting tank 2.

[0047] In this embodiment, the rotating nozzle 21 includes a rotating ring 28, the inner wall of the rotating ring 28 is provided with a guide groove 29, and the side wall of the rotating ring 28 is provided with multiple water pipes 30. The multiple water pipes 30 are evenly distributed radially, and the inner end is connected to the guide groove 29, and the outer end is a closed structure. The water pipe 30 is provided with multiple water spray holes 35 along the length direction, and the multiple water spray holes 35 have the same water spraying direction, which is inclined upward; a water diversion pipe 31 is provided in the rotating ring 28, and the lower end of the water diversion pipe 31 is connected to the outlet of the water pump 20 through a pipeline, and the upper end is a closed structure. A water permeable hole 32 is opened on the water diversion pipe 31, and it is connected to the guide groove 29 through the water permeable hole 32.

[0048] The water diversion pipe 31 is connected with the outlet of the water pump 20 through a pipeline, and serves as the installation base of the rotating ring 28. A plurality of water spray holes 35 are provided on the rotating ring 28 as the outlet of the water supply of the water pump 20. The rotating ring 28 is mounted outside the water spray holes 35, and a guide groove 29 is provided on the inner wall thereof to be connected with the water spray holes 35. A water diversion pipe 30 is provided on the outer wall of the rotating ring 28 to be connected with the guide groove 29. The water pumped out by the water pump 20 enters the guide groove 29 through the water diversion pipe 31 and then passes through the water diversion pipe 30 and is sprayed out through the water spray holes 35. The reaction force of the sprayed water flow drives the rotating ring 28 to rotate, thereby realizing rotational spraying. A nozzle can be provided on the water spray hole 35 to constrain the sprayed water flow.

[0049] In this embodiment, the water pipe 31 is provided with a clamping ring 33 on the outer side of both upper and lower ends. The two clamping rings 33 are respectively located on the upper and lower sides of the rotating ring 28. A rotating support 34 is respectively provided between the two clamping rings 33 and the limiting ring.

[0050] The two snap rings 33 are respectively located on the upper and lower sides of the rotating ring 28, that is, on the upper and lower sides of the water permeable hole 32. The two snap rings 33 can limit the position of the rotating ring 28 on the water pipe 31, and constrain the rotation state of the rotating ring 28. A rotating support 34 is set between the snap ring 33 and the rotating ring 28. The rotating support 34 can be a bearing or a gasket made of a high silicon plate, which can reduce the friction between the rotating ring 28 and the snap ring 33, and is beneficial to the rotation of the rotating ring 28.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A rainwater collection and spraying device for mine restoration, comprising a collection mechanism and a spraying mechanism, wherein the collection mechanism is used to collect rainwater, and the spraying mechanism is used to extract the rainwater collected by the collection mechanism and spray it on the surrounding area, characterized in that: The collecting mechanism includes a water collecting trough and a water guide sleeve arranged on the water collecting trough, the water guide sleeve includes a plurality of water permeable units connected in series longitudinally, the water permeable unit includes an outer cylinder and an inner cylinder, the side wall of the upper half of the outer cylinder is provided with a plurality of first water inlet holes for rainwater to penetrate inward, the inner cylinder is arranged in the outer cylinder, the length of the inner cylinder is less than the length of the outer cylinder, the outer wall of the inner cylinder is sealed with the inner wall of the outer cylinder and can slide in the outer cylinder, a float is arranged in the upper end of the inner cylinder, when the water level in the water guide sleeve rises, the float will be lifted up by buoyancy, thereby driving the inner cylinder to move upward to close the first water inlet holes, so that the water permeable unit closing the first water inlet holes serves as an extension of the water collecting trough; A first filter plate is disposed outside the outer cylinder, and the first filter plate is enclosed outside the first water inlet hole; A filter is also provided outside the outer cylinder, and the filter includes an upper mounting ring and a lower mounting ring, both of which are sleeved on the outer cylinder and are respectively located on the upper and lower sides of the first water inlet hole, a baffle is provided between the upper mounting ring and the lower mounting ring, and both side edges of the baffle are respectively connected to the outer sides of the upper mounting ring and the lower mounting ring, and a plurality of second water inlet holes are opened on the baffle; A second filter plate is arranged inside the baffle.

2. The mine repair rainwater collection and spraying device according to claim 1 is characterized by: The upper end of the inner cylinder is provided with an inwardly folded flange, and the floating body is fixedly installed at the bottom of the flange.

3. The rainwater collection and spraying device for mine restoration according to claim 2 is characterized in that: The outer middle part and the outer top of the outer cylinder are both provided with annular bosses.

4. The rainwater collection and spraying device for mine restoration according to claim 1 is characterized in that: The top of the outer cylinder is provided with an annular limiting groove, the bottom of the outer cylinder is provided with an annular convex ridge, and two adjacent outer cylinders are clamped together through the annular limiting groove and the annular convex ridge.

5. The mine repair rainwater collection and spraying device according to any one of claims 1 to 4, characterized in that: The spray mechanism comprises a water pump and a rotating spray head. The inlet of the water pump is connected with a water inlet pipe, the water inlet pipe extends downward into the water collection tank, and the rotating spray head is connected with the outlet of the water pump through a pipeline.

6. The rainwater collection and spraying device for mine restoration according to claim 5 is characterized in that: The rotating nozzle comprises a rotating ring, the inner wall of which is provided with a guide groove, the side wall of which is provided with a plurality of water guide pipes, the plurality of water guide pipes being evenly distributed in a radial shape, and the inner end of which is connected with the guide groove, and the outer end of which is a closed structure, the water guide pipe is provided with a plurality of water spray holes along the length direction, and the water spraying directions of the plurality of water spray holes are the same, all of which are inclined upward; a water guide pipe is provided inside the rotating ring, The lower end of the water diversion pipe is connected with the water pump outlet through a pipeline, and the upper end is a closed structure. A water permeable hole is opened on the water diversion pipe, and the water permeable hole is connected with the guide groove.

7. The rainwater collection and spraying device for mine restoration according to claim 6 is characterized in that: The outer sides of the upper and lower ends of the water diversion pipe are provided with clamping rings, and the two clamping rings are respectively located on the upper and lower sides of the rotating ring, and rotating support members are respectively provided between the two clamping rings and the limiting ring.

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