Drainage system of mine storage yard

Abstract

The invention provides a mine storage yard drainage system which comprises a plurality of main ditches, a grit chamber, a grating drainage ditch and a water collecting device, the main ditches are arranged at the position, close to a material pile, in a storage yard, and the main ditches are filled with gravel materials; the grit chamber is arranged at the downstream of the main ditch, the grating drainage ditch is arranged outside the material pile and close to the edge of the storage yard, the grating drainage ditch is arranged at the downstream of the grit chamber, and the water collecting device is arranged at the downstream of the grating drainage ditch. Rainwater or sewage can be discharged out of the storage yard after being filtered and precipitated in sequence, and rainwater or sewage can be conveniently collected. The gravel materials are filled in the main ditch, the problem that the materials enter the main ditch and are brought out of a storage yard can be solved, the problems that after machines such as a front loading machine repeatedly work for a long time, the cover plate is crushed, the cover plate deforms or the materials block the cover plate can also be solved, investment is saved, the structure is simple, construction is easy, maintenance is convenient, and the drainage performance is good.

Description

Technical Field

[0001] The invention relates to the technical field of drainage systems, and in particular to a drainage system for a mine yard. Background Art

[0002] The internal drainage ditch of the concentrate stockpile often uses open ditch or cover ditch for drainage. When using open ditch drainage, although it is easy to clean the materials deposited in the ditch, the stockpile needs to be coordinated with the front loader. When there is no cover on the open ditch, the front loader cannot operate normally. When using steel grating cover, the concentrate materials are easy to be scattered and deposited in the ditch during the stacking and unloading process, which will cause the drainage ditch to be blocked in a short time. In addition, the front loader operates for a long time, and the grating cover is easy to be crushed and deformed. When using reinforced concrete cover, the concentrate materials are easy to be scattered on the cover. After the front loader and other machinery work repeatedly for a long time, the concentrate materials are embedded in the gap of the cover after rolling, blocking the cover, resulting in poor drainage. In addition, the amount of concrete used is large, and the investment cost of the ditch is very high.

[0003] Traditional industrial plant internal sewage treatment facilities are arranged at the lowest point of the plant to treat sewage collected from the entire plant. Faced with the increase in industrial scale, the corresponding plant area is getting larger and larger, and environmental protection requirements are becoming more stringent. At present, it is necessary to consider how to carry out graded and zoned sedimentation to reduce the scale and area of ​​subsequent rainwater collection facilities. Summary of the invention

[0004] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, an embodiment of the present invention provides a drainage system for a mine yard to prevent materials from entering the main ditch in the yard and improve drainage.

[0005] The first aspect of the present invention proposes a drainage system, including: a main ditch, a grit tank, a grille drainage ditch and a water collecting device, wherein the main ditch is provided with a plurality of strips, and the main ditch is provided at a position close to a material pile in a stockpile, and the main ditch is filled with sand and gravel; the grit tank is provided downstream of the main ditch and connected with the main ditch, and the bottom of the grit tank is lower than the bottom of the main ditch; the grille drainage ditch is provided outside the material pile and close to the edge of the stockpile, the grille drainage ditch is provided downstream of the grit tank and connected with the grit tank, and the bottom of the grille drainage ditch is higher than the bottom of the grit tank; the water collecting device is provided downstream of the grille drainage ditch and connected with the grille drainage ditch.

[0006] In some embodiments, the bottom of the main ditch is inclined downward toward the grit chamber.

[0007] In some embodiments, the water collecting devices are respectively arranged on both sides of the yard, and both ends of each main ditch are respectively connected to a grit chamber, and the downstream of each grit chamber is respectively connected to a grille drainage ditch, and each grille drainage ditch is connected to an adjacent water collecting device.

[0008] In some embodiments, the slope of the bottom of the main groove is not less than 2%.

[0009] In some embodiments, the upper end surface of the sand and gravel is flush with the ground surface of the yard.

[0010] In some embodiments, the sand and gravel material includes a block stone layer, a crushed stone layer and a gravel layer laid sequentially from bottom to top, and the thickness of the block stone layer is greater than the sum of the thicknesses of the crushed stone layer and the gravel layer.

[0011] In some embodiments, the drainage system also includes a gabion box, the block stone layer is filled inside the gabion box, the gabion box is arranged to fit the inner wall of the main ditch, a geotextile is laid between the gabion box and the inner wall of the main ditch and is horizontally flanged along the top and bottom of the gabion box, and a geotextile is laid between the gravel layer and the crushed stone layer and is flanged upward along the inner wall of the main ditch.

[0012] In some embodiments, the bottom of the grate drain groove is inclined downward toward the water collecting device.

[0013] In some embodiments, the stockpile is divided into several drainage areas, the main ditch is arranged in all the drainage areas, two adjacent main ditches are parallel to each other, and the material pile is piled beside the main ditch.

[0014] Another embodiment of the present invention provides an application of the above drainage system in a mine yard. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings.

[0016] in:

[0017] Figure 1 A plan view of a drainage system for a mine yard according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 AA section view in;

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the grille drainage ditch, grit chamber and main ditch;

[0020] Figure 4 for Figure 1 BB section view in;

[0021] Reference numerals:

[0022] 1. Water collection device; 2. Grid drainage ditch; 3. Grit chamber; 4. Main ditch; 5. Material pile; 6. Gravel layer; 7. Crushed stone layer; 8. Block stone layer; 9. Gabion box; 10. Geotextile. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0024] The drainage system for a mine yard according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0025] like Figure 1-4 As shown, an embodiment of the first aspect of the present invention proposes a drainage system, including: a main ditch 4, a grit tank 3, a grille drainage ditch 2 and a water collecting device 1, wherein a plurality of main ditches 4 are provided, and the main ditches 4 are arranged at a position close to a stockpile 5 in the stockpile yard, and the main ditch 4 is filled with sand and gravel; the grit tank 3 is arranged downstream of the main ditch 4 and connected with the main ditch 4, and the bottom of the grit tank 3 is lower than the bottom of the main ditch 4; the grille drainage ditch 2 is arranged outside the stockpile 5 and close to the edge of the stockpile yard, the grille drainage ditch 2 is arranged downstream of the grit tank 3 and connected with the grit tank 3, and the bottom of the grille drainage ditch 2 is higher than the bottom of the grit tank 3; the water collecting device 1 is arranged downstream of the grille drainage ditch 2 and connected with the grille drainage ditch 2.

[0026] The rainwater or sewage in the yard flows into the main ditch 4, and then flows into the grit chamber 3. The grit chamber 3 settles the silt mixed with the rainwater or sewage. The settled rainwater or sewage overflows into the grate drain ditch 2, and finally flows into the water collection device 1.

[0027] The embodiment of the present invention can solve the problem of materials entering the main ditch 4 and being carried out of the yard by filling sand and gravel into the main ditch 4, and can also solve the problem of the cover plate being crushed, the cover plate being deformed, or the cover plate being blocked by materials after long-term repeated operation of the front loader and other machines. It saves investment, has a simple structure, is easy to construct, is convenient to maintain, and has good drainage performance.

[0028] The embodiment of the present invention provides a main ditch 4, a grit chamber 3, a grille drainage ditch 2 and a water collection device 1, so that rainwater or sewage is filtered and precipitated in sequence and then discharged from the storage yard, thereby facilitating the collection of rainwater or sewage.

[0029] The drainage system of the embodiment of the present invention can be used in mine yards, sand and gravel yards, coal mine yards or other material yards, and is not limited to outdoor yards but can also be used in indoor yards.

[0030] Furthermore, the main ditch 4 is a rectangular ditch made of soil.

[0031] Furthermore, the grit chamber 3 is arranged at a position close to the end of the pile 5 .

[0032] In some embodiments, Figure 3 As shown, the bottom of the main ditch 4 is inclined downward toward the direction of the grit chamber 3, so as to facilitate the discharge of sewage or rainwater toward the water collection device 1.

[0033] In some embodiments, Figure 1 As shown, water collection devices 1 are respectively arranged on both sides of the yard, and grit chambers 3 are respectively connected to the two ends of each main ditch 4, and a grille drainage ditch 2 is respectively connected to the downstream of each grit chamber 3, and each grille drainage ditch 2 is connected to the adjacent water collection device 1. Rainwater or sewage is discharged to the two ends of the main ditch 4, thereby improving drainage efficiency.

[0034] Furthermore, the bottom of each main groove 4 near the middle portion is at the highest point and is inclined downward toward the two ends of the main groove 4 .

[0035] In some embodiments, the slope of the bottom of the main groove 4 is not less than 2%.

[0036] In some embodiments, the upper end surface of the sand and gravel is flush with the ground of the yard, so as to prevent the main ditch 4 from forming a depression, resulting in more materials remaining in the depression of the main ditch 4. At the same time, it also reduces the bumps of the transportation equipment in the yard, making the equipment run more smoothly and safely in the yard.

[0037] In some embodiments, Figure 4 As shown, the gravel material includes a block stone layer 8, a crushed stone layer 7 and a gravel layer 6 which are laid sequentially from bottom to top, and the thickness of the block stone layer 8 is greater than the sum of the thicknesses of the crushed stone layer 7 and the gravel layer 6. The gravel layer 6 can prevent materials from entering the main ditch 4. All materials can be obtained locally, which is convenient for construction and maintenance. The thickness of the crushed stone layer 7 and the gravel layer 6 is designed to be much smaller than the thickness of the block stone layer 8, which can facilitate the smooth infiltration of rainwater or sewage downward.

[0038] Furthermore, the thickness of the stone layer 8 is 8-10 times that of the crushed stone layer 7, and the thickness of the crushed stone layer 7 is equal to or close to that of the gravel layer 6. The particle size of the stone layer 8 is the largest, and the particle size of the gravel layer 6 is the smallest, which further promotes the smooth infiltration of rainwater or sewage downward.

[0039] Furthermore, the thickness of the block stone layer 8 is 1 m, and the particle size of the block stone is 200-300 mm. The thickness of the crushed stone layer 7 is 0.1 m, and the particle size of the crushed stone is 40-50 mm. The thickness of the gravel layer 6 is 0.1 m, and the particle size of the gravel is 2-10 mm.

[0040] In some embodiments, Figure 4 As shown, the drainage system also includes a gabion box 9, a stone layer 8 is filled inside the gabion box 9, the gabion box 9 is arranged to fit the inner wall of the main ditch 4, a geotextile 10 is laid between the gabion box 9 and the inner wall of the main ditch 4, and the top and bottom of the gabion box 9 are horizontally turned up, and the geotextile 10 is laid between the gravel layer 6 and the crushed stone layer 7 and turned up along the inner wall of the main ditch 4. By laying the geotextile 10 and reserving the turning up, a filtering effect can be achieved to prevent materials from entering the main ditch 4.

[0041] Furthermore, the flange lengths of the geotextile 10 between the gabion box 9 and the main ditch 4 and the geotextile 10 between the gravel layer 6 and the crushed stone layer 7 are both 200 mm.

[0042] In some embodiments, Figure 3 As shown, the bottom of the grate drain ditch 2 is inclined downward toward the water collecting device 1, so that the water collecting device 1 can collect rainwater or sewage.

[0043] In some embodiments, the stockpile is divided into several drainage areas, the main ditch 4 is arranged in all the drainage areas, two adjacent main ditches 4 are parallel to each other, and the material pile 5 is piled beside the main ditch 4 .

[0044] By dividing the yard into multiple drainage areas, the size of the drainage ditch, the scale of the drainage system and the scale of the water collection facilities can be reduced, thus achieving zoned drainage.

[0045] Furthermore, the material pile 5 is usually in a strip shape, and the material pile 5 is arranged parallel to the main ditch 4 .

[0046] Furthermore, main ditches 4 are respectively arranged on both sides of the storage yard to prevent rainwater or sewage from flowing outward along both sides of the storage yard.

[0047] Furthermore, each stockpile 5 corresponds to a main ditch 4, two main ditches 4 correspond to a grit chamber 3, and each grit chamber 3 corresponds to a grate drain ditch 2. All the grate drain ditches 2 are finally collected in the water collecting device 1.

[0048] Furthermore, the main ditch 4 is 5 m away from the slope foot line of the stockpile 5 .

[0049] Another embodiment of the present invention provides an application of the above drainage system in a mine yard.

[0050] The present invention is further described below through specific examples.

[0051] Example 1

[0052] The concentrate yard of a foreign mining project has a sub-equatorial tropical savanna climate, with only two seasons: rainy season and dry season. The rainy season is from May to October, accounting for about 90% of the annual precipitation, and the annual precipitation is between 1300mm and 2800mm. There are 10 long strips of ore piles in the yard, each 500m long. Foreign concrete is expensive, and the investment cost of arranging concrete ditches in the yard is very high, and the ditches are easily blocked.

[0053] like Figure 1-4As shown, the site is divided into five drainage zones according to the site design slope. The main ditch 4 in the yard is arranged parallel to the material strip direction, and the main ditch 4 is 5m away from the slope foot line of the material strip. The main ditch 4 is a soil rectangular ditch with a ditch width of 2.0m, a ditch depth of 1.2m, and a ditch bottom slope of 2%. The main ditch 4 is provided with a block stone layer 8, a crushed stone layer 7, and a gravel layer 6 from bottom to top. The thickness of the block stone layer 8 is 1m, and the particle size of the block stone is 200-300mm. The thickness of the crushed stone layer 7 is 0.1m, and the particle size of the crushed stone is 40-50mm. The thickness of the gravel layer 6 is 0.1m, and the particle size of the gravel is 2-10mm. The block stone layer 8 is placed in a gabion box 9, and a single gabion box 9 is 2m long, 1m wide, and 1m high. The gabion box 9 is placed at the bottom of the main ditch 4, and multiple gabions 9 are arranged side by side and connected end to end. The blocks of stone can be obtained locally, using waste rock from the quarry.

[0054] Geotextile 10 is laid between gabion box 9 and the inner wall of main ditch 4 and horizontally turned along the top and bottom of gabion box 9. Geotextile 10 is laid between gravel layer 6 and crushed stone layer 7 and turned upward along the inner wall of main ditch 4. The turning length is 200mm. Grit chamber 3 is arranged at both ends of the material strip to achieve zoned sedimentation. Grit chamber 3 is 3m wide, 3m long and 2m deep.

[0055] The grate drain ditch 2 is arranged outside the concentrate yard, and the grate drain ditch 2 sends the collected sewage or rainwater to the water collection device 1 .

[0056] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0057] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0060] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A drainage system, characterized in that: include: Main trenches, wherein a plurality of main trenches are provided, and the main trenches are arranged in a position close to the stockpile in the yard, and the main trenches are filled with sand and gravel; A grit chamber, which is arranged downstream of the main ditch and is connected to the main ditch, and the bottom of the grit chamber is lower than the bottom of the main ditch; A grille drainage ditch, wherein the grille drainage ditch is arranged outside the stockpile and close to the edge of the stockpile, the grille drainage ditch is arranged downstream of the grit chamber and is connected to the grit chamber, and the bottom of the grille drainage ditch is higher than the bottom of the grit chamber; A water collecting device is disposed downstream of the grille drainage ditch and is communicated with the grille drainage ditch.

2. The drainage system according to claim 1, characterized in that: The bottom of the main ditch is inclined downward toward the grit chamber.

3. The drainage system according to claim 1, characterized in that: The water collecting devices are respectively arranged on both sides of the yard, the two ends of each main ditch are respectively connected to the grit chamber, the downstream of each grit chamber is respectively connected to the grille drainage ditch, and each grille drainage ditch is connected to the adjacent water collecting device.

4. The drainage system according to claim 2, characterized in that: The slope of the bottom of the main ditch is not less than 2%.

5. The drainage system according to claim 1, characterized in that: The upper end surface of the sand and gravel is flush with the ground of the storage yard.

6. The drainage system according to claim 5, characterized in that: The sand and gravel material includes a block stone layer, a crushed stone layer and a gravel layer which are laid in sequence from bottom to top, and the thickness of the block stone layer is greater than the sum of the thicknesses of the crushed stone layer and the gravel layer.

7. The drainage system according to claim 6, characterized in that: It also includes a gabion box, the block stone layer is filled in the interior of the gabion box, the gabion box is arranged to fit the inner wall of the main ditch, a geotextile is laid between the gabion box and the inner wall of the main ditch and is horizontally turned up along the top and bottom of the gabion box, and a geotextile is laid between the gravel layer and the crushed stone layer and is turned up along the inner wall of the main ditch.

8. The drainage system according to claim 1, characterized in that: The bottom of the grate drain groove is inclined downward toward the water collecting device.

9. The drainage system according to claim 1, characterized in that: The stockpile is divided into a plurality of drainage areas, the main ditch is arranged in all the drainage areas, two adjacent main ditches are parallel to each other, and the material pile is piled beside the main ditch.

10. Application of the drainage system according to any one of claims 1 to 9 in a mine yard.

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