Drainage system and method for slag dump

Abstract

The present invention relates to the technical field of slag yard drainage, and in particular to a drainage system and method for a slag yard, wherein a pile is stacked inside the slag yard, a diversion ditch is excavated at the outer edge of the slag yard, a drainage ditch is excavated inside the slag yard, a water storage well is connected to the diversion ditch and the drainage ditch, and a drainage component is arranged at the bottom of the water storage well. The present invention solves the problem that "the existing drainage is only performed by drainage, and only water beyond the saturation of the slag can be discharged, and there is still a large amount of adsorbed moisture at the bottom of the slag. The moisture is difficult to discharge, has a long disappearance period, and is easy to gradually gather to the bottom. How to discharge the water adsorbed in the slag in a timely and effective manner" and greatly increases the drainage efficiency of the slag yard. The present invention inserts a ventilation pipe into the pile of the slag yard, creates and utilizes the temperature difference between the slag yard and the periphery of the slag yard, so that flowing air can be generated on the inside of the pile to bring out the moisture.

Description

Technical Field

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

[0002] As one of the ancillary projects of highways, waste dumps are usually not given enough attention during the planning, design, construction and operation stages. Especially for highways built in mountainous areas, the amount of waste dumps is large, the surrounding environment is complex, and any mistakes or neglect by the design, construction, and operation parties may lead to the incomplete quantity or poor quality of the ancillary facilities in the waste dump, such as drainage ditches, intercepting ditches, slag dams and slag retaining walls, as well as the private mining or repeated accumulation of waste dumps after completion. Once encountering a harsh environment, it is easy to form the hidden danger of instability and damage of the waste dump.

[0003] After the waste dump is flooded, the bottom of the dump is in a semi-fluid state, so it is easy to cause landslides and other phenomena. The slag itself has a certain water absorption capacity. The existing drainage method can only drain the water beyond the saturation of the slag. There is still a large amount of adsorbed water at the bottom of the slag. This water is difficult to discharge, has a long disappearance period, and tends to gradually gather at the bottom. How to discharge the water adsorbed in the slag in a timely and effective manner can greatly increase the drainage efficiency of the slag.

[0004] A slag dump located in a mountainous area is drained through intercepting ditches and drainage ditches, and the water led out of the intercepting ditches and drainage ditches is then collected into a water storage well and discharged by the drainage facilities in the water storage well. The water inlet is often higher than the drain outlet, but there are many high-level barriers between the water inlet and the drain outlet, and the water in the water storage well cannot be discharged naturally. The drainage facilities are often water pumps, but there is a shortage of electricity in the mountainous area, and it will cost extra to set up power supply lines. The present invention provides a drainage structure for the water storage well, which discharges water to a low place through the principle of siphon. When it stops working, it can retain enough water in the drainage pipeline to provide initial power for the next siphon, thereby realizing low-energy drainage of the slag dump.

[0005] Therefore, in view of the above problems, a drainage system and method for a slag yard are proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a drainage system and method for a slag yard, so as to solve the problem raised in the above background technology that "the existing drainage is only carried out by drainage, which can only discharge the water beyond the saturation of the slag, and there is still a large amount of adsorbed moisture at the bottom of the slag. This moisture is difficult to discharge, has a long disappearance period, and tends to gradually gather at the bottom. How to discharge the water adsorbed in the slag in a timely and effective manner can greatly increase the drainage efficiency of the slag yard."

[0007] To achieve the above object, the present invention provides the following technical solution: a drainage system for a slag yard, comprising a slag yard, a pile body is stacked inside the slag yard, a water interception ditch is excavated at the outer edge of the slag yard, a drainage ditch is excavated inside the slag yard, a water storage well is connected to the water interception ditch and the drainage ditch, a drainage assembly is arranged at the bottom end of the water storage well, and a ventilation anchor assembly is arranged inside the pile body;

[0008] The ventilation anchor assembly includes a ventilation pipe, which is vertically arranged on the inner side of the pile body, and a channel connecting the inside and the outside is opened on the ventilation pipe. The bottom ends of the plurality of ventilation pipes are connected with connecting pipes, and the connecting pipes are horizontally arranged in the pile body. A circulation assembly is arranged on the outside of the slag yard, and the circulation assembly includes a support frame, and one end of the support frame is fixedly connected with an air pump, and the air pump is made of a transparent material. The height of the air pump is higher than the top height of the ventilation anchor assembly, and the bottom end of the air pump is connected with a conical part, and the bottom end of the conical part is connected with an air pump, and the bottom end of the air pump is connected with the connecting pipe. The air is evacuated by the air pump to generate continuous airflow inside the pile body, which is convenient for the rapid discharge of moisture adsorbed by the slag and increases the stability of the bottom layer of the pile body.

[0009] A heat collecting tube is fixedly connected to the inner side of the vacuum pump, and the inner side of the heat collecting tube is filled with heat storage elements. When there is sunlight during the day, the heat collecting tube is heated to generate an upward airflow, the vacuum pump generates suction, the humidity temperature of the pile is low, and a downward airflow is generated. The moisture in the pile will be discharged through the ventilation pipe, connecting pipe, vacuum pipe and vacuum pump. When there is no sunlight at night, the heat collecting tube cools down rapidly. Because the humidity temperature of the pile is higher than that of the heat collecting tube, the pile will generate an upward airflow, and the moisture in the pile will be discharged through the vacuum pump, vacuum pipe, connecting pipe and ventilation pipe.

[0010] As a preferred drainage system for a slag yard of the present invention, the channel opened on the ventilation pipe is arranged at an angle, and the side of the channel close to the outer wall of the ventilation pipe is at a low position. Water-absorbing sponges are embedded on the inner wall of the ventilation pipe and the inner side of the channel. The water-absorbing sponges are used to increase the moisture exchange area and exchange rate.

[0011] As a preferred drainage system for a slag yard of the present invention, the top of the vacuum cylinder is fixedly connected with an outward-turned folded portion, and there is a height difference between the height of the heat collecting pipe in the vacuum cylinder and the top of the vacuum cylinder. The height difference and the folded portion are used to reduce the air outside the vacuum cylinder to be replenished to the vacuum cylinder, thereby increasing the suction force of the vacuum cylinder to the conical portion.

[0012] As a preferred drainage system for a slag yard of the present invention, a one-way drain valve is provided on the connecting pipe, and the one-way drain valve is arranged at the bottom end of the connecting pipe, and the one-way drain valve is arranged in a diversion ditch or a drainage ditch. A rain collecting cap is fixedly connected to the top of the ventilation pipe, and the inner side of the bottom end of the rain collecting cap is communicated with the inner side of the top end of the ventilation pipe. When the width of the pile is greater than 2 meters, the ventilation pipe is arranged at the edge of the pile, and when the width of the pile is less than 2 meters, the ventilation pipe is arranged in the middle of the pile.

[0013] As a preferred drainage system for a slag yard of the present invention, a cross bar is fixedly connected to the top of the support frame, one end of the cross bar is rotatably connected to a reflector via a hinge, the upper side of the support frame is rotatably connected to an electric push rod via a hinge, the other end of the electric push rod is rotatably connected to the reflector via a hinge, the reflector faces south, and the angle of the reflector is changed by the electric push rod to reflect sunlight onto the heat collecting tube, thereby increasing the irradiation intensity of the heat collecting tube, and the heat storage member is an iron sheet. The heat storage member is an iron sheet, so that the heat collecting tube can be maintained at a higher temperature during the day, thereby increasing the convection effect.

[0014] As a preferred drainage system for a slag yard of the present invention, the drainage component includes an inner cylinder and a controller, the bottom end of the water storage well is connected to a drainage pipe, the bottom end of the water storage well is fixedly connected to the inner cylinder, the input end of the drainage pipe is arranged in the inner cylinder, the bottom end of the inner cylinder is evenly provided with water inlet check valves, the inner side of the inner cylinder and the inner side of the water storage well are both provided with water level gauges, the end of the drainage pipe is connected to an electric valve, during drainage, after the water level in the inner cylinder begins to drop, the controller controls the electric valve to close, so that the water in the drainage pipe is in a closed state.

[0015] As a preferred embodiment of the drainage system for a slag yard of the present invention, the top end of the inner cylinder is connected to an exhaust valve for exhausting the air in the inner cylinder when the water storage well is storing water.

[0016] As a preferred drainage system for a slag yard of the present invention, the drainage pipe is connected to a connecting cylinder, the inner side of the connecting cylinder is rotatably connected to a generator flushed by water flow, and a battery is also provided at the water storage well for supplying power to electrical facilities. When draining water, the generator is used to charge the battery.

[0017] The drainage method for the slag dump comprises the following steps:

[0018] Step 1: When there is sunshine during the day, the heat collecting tube generates an upward airflow, the vacuum pump generates suction, the pile body is humid and the temperature is low, which generates a downward airflow. The moisture in the pile body will be discharged through the ventilation pipe, connecting pipe, vacuum pipe and vacuum pump to achieve long-term continuous drainage;

[0019] Step 2: When there is no sunlight at night, the collector tube cools down quickly. Because the temperature of the pile is higher than that of the collector tube, the pile generates an upward airflow. The moisture in the pile will be discharged through the vacuum pump, vacuum pipe, connecting pipe and ventilation pipe to achieve long-term continuous drainage.

[0020] As a preferred method for draining water from a slag field according to the present invention, the steps thereof further include:

[0021] Step 3: When it rains, the water level in the water storage well gradually rises. The water level gauge in the water storage well recognizes the rising water level and transmits the water level information to the controller. The controller controls the exhaust valve to open, and the water in the water storage well enters the inner cylinder through the water inlet check valve.

[0022] Step 4: After the water level in the water storage well rises to the top of the water storage well, the water level gauge in the inner tube identifies the water level in the inner tube and transmits the water level information to the controller. When the inner tube is full of water, the controller controls the electric valve to open and start draining water;

[0023] Step 5: After the rain stops, the water level in the water storage well gradually drops. When the water level in the inner tube begins to drop, the controller controls the exhaust valve to close, and the controller controls the electric valve to close, so that the water in the drain pipe and the inner tube is in a closed state, which is convenient for the next siphon drainage.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The drainage system for the slag yard solves the problem that "the existing drainage is only carried out by drainage, which can only discharge the water beyond the saturated slag soil, and there is still a large amount of adsorbed moisture at the bottom of the slag soil. This moisture is difficult to discharge, has a long disappearance period, and tends to gradually gather at the bottom. How to discharge the water adsorbed inside the slag soil in a timely and effective manner" and greatly increases the drainage efficiency of the slag yard. The present invention inserts a ventilation pipe into the pile body of the slag yard, creates and utilizes the temperature difference between the slag yard and the periphery of the slag yard, so that the inner side of the pile body can generate flowing air to take out the moisture. This air flow is continuous and long-term, so a large amount of moisture can be discharged. A heat collecting tube is fixedly connected to the inner side of the vacuum pump, and the inner side of the heat collecting tube is filled with heat storage elements. When there is sunlight during the day, the heat collecting tube is heated to generate an upward airflow, and the vacuum pump generates suction. The humidity temperature of the pile is low, and a downward airflow is generated. The moisture in the pile will be discharged through the ventilation pipe, connecting pipe, vacuum pipe and vacuum pump. When there is no sunlight at night, the heat collecting tube cools down rapidly. Because the humidity temperature of the pile is higher than that of the heat collecting tube, the pile will generate an upward airflow, and the moisture in the pile will be discharged through the vacuum pump, vacuum pipe, connecting pipe and ventilation pipe.

[0026] 2. The drainage system for the slag yard has an inclined channel to prevent the slag from entering the inner side of the ventilation pipe. The channel is filled with absorbent sponges, and the absorbent sponges on the inner wall of the ventilation pipe and in the channel are continuously arranged, which can significantly increase the moisture exchange area and exchange rate when the air flows.

[0027] 3. The setting of the ventilation pipe of the drainage system for the slag yard can also play a role in anchoring the pile to prevent the pile from becoming unstable. The rain collecting cap is also transparent and can collect rainwater near the ventilation pipe. When it rains, the rainwater is directly discharged into the intercepting ditch or drainage ditch through the ventilation pipe, connecting pipe and one-way drain valve, reducing the amount of rainwater erosion on the pile.

[0028] 4. The drainage system used in the slag yard, when it rains, the water level in the water storage well gradually rises, the water level gauge in the water storage well identifies the rising water level, and transmits the water level information to the controller, the controller controls the exhaust valve to open, and the water in the water storage well enters the inner tube through the water inlet check valve; after the water level in the water storage well rises to the top of the water storage well, the water level gauge in the inner tube identifies the water level in the inner tube and transmits the water level information to the controller, when the inner tube is full of water, the controller controls the electric valve to open and start drainage; after the rain stops, the water level in the water storage well gradually drops, when the water level in the inner tube starts to drop, the controller controls the exhaust valve to close, the controller controls the electric valve to close, so that the water in the drainage pipe and the inner tube is in a closed and flooded state, which is convenient for the next siphon drainage, thereby playing a role in low-power drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall top view structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure at the AA' section of the present invention;

[0031] Figure 3 It is a schematic diagram of the internal structure of the vacuum cylinder of the present invention;

[0032] Figure 4 It is a schematic diagram of the internal structure of the ventilation pipe of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure inside the ventilation pipe of the present invention;

[0034] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at B in FIG.

[0035] Figure 7 It is a schematic diagram of the installation structure at the bottom of the water storage well of the present invention;

[0036] Figure 8 For the present invention Figure 7Schematic diagram of the installation structure at point C in the figure.

[0037] In the figure: 1. Slag dump; 2. Intercepting ditch; 3. Pile; 4. Ventilation anchor assembly; 5. Water storage well; 6. Drainage ditch; 7. Circulation assembly;

[0038] 41. Rain collecting cap; 42. Ventilation pipe; 43. Connecting pipe; 44. One-way drain valve; 45. Passage; 46. Water-absorbing sponge;

[0039] 51. Inner tube; 52. Exhaust valve; 53. Water level gauge; 54. Connecting tube; 55. Battery; 56. Drain pipe; 57. Water inlet check valve; 58. Electric valve; 59. Controller;

[0040] 71. Support frame; 72. Cross bar; 73. Electric push rod; 74. Reflector; 75. Vacuum cylinder; 76. Vacuum pipe; 77. Heat collecting pipe; 78. Heat storage element; 79. Height difference; 710. Conical part; 711. Folding part. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0042] Example 1, please refer to Figure 1-6 , the present invention provides a technical solution:

[0043] A drainage system for a slag yard comprises a slag yard 1, a pile 3 is piled inside the slag yard 1, a cut-off ditch 2 is excavated at the outer edge of the slag yard 1, a drainage ditch 6 is excavated inside the slag yard 1, a water storage well 5 is connected to the cut-off ditch 2 and the drainage ditch 6, a drainage assembly is arranged at the bottom of the water storage well 5, and a ventilation anchor assembly 4 is arranged inside the pile 3;

[0044] The ventilation anchor assembly 4 includes a ventilation pipe 42, which is vertically arranged on the inner side of the pile body 3. A channel 45 connecting the inner and outer sides is opened on the ventilation pipe 42. The bottom ends of the multiple ventilation pipes 42 are connected with a connecting pipe 43, and the connecting pipe 43 is horizontally arranged in the pile body 3. A circulation assembly 7 is arranged on the outer side of the slag yard 1. The circulation assembly 7 includes a support frame 71, and one end of the support frame 71 is fixedly connected with a vacuum cylinder 75. The vacuum cylinder 75 is made of a transparent material, and the height of the vacuum cylinder 75 is higher than the top height of the ventilation anchor assembly 4. The bottom end of the vacuum cylinder 75 is connected with a conical portion 710, and the bottom end of the conical portion 710 is connected with an exhaust pipe 76. The bottom end of the exhaust pipe 76 is connected with the connecting pipe 43. The vacuum of the vacuum cylinder 75 generates continuous airflow inside the pile body 3, which is convenient for the rapid discharge of moisture adsorbed by the slag and increases the stability of the bottom layer of the pile body 3.

[0045] A heat collecting tube 77 is fixedly connected to the inner side of the vacuum pump 75, and the inner side of the heat collecting tube 77 is filled with a heat storage element 78. When there is sunlight during the day, the heat collecting tube 77 is heated to generate an upward airflow, and the vacuum pump 75 generates suction. The humidity temperature of the stack body 3 is low, and a downward airflow is generated. The moisture in the stack body 3 will be discharged through the ventilation pipe 42, the connecting pipe 43, the vacuum pipe 76 and the vacuum pump 75. When there is no sunlight at night, the heat collecting tube 77 cools down rapidly. Because the humidity temperature of the stack body 3 is higher than that of the heat collecting tube 77, an upward airflow is generated in the stack body 3, and the moisture in the stack body 3 will be discharged through the vacuum pump 75, the vacuum pipe 76, the connecting pipe 43 and the ventilation pipe 42.

[0046] Under the above setting, the present invention solves the problem that "the existing drainage is only carried out by drainage, which can only discharge the water beyond the saturation of the slag soil, and there is still a large amount of adsorbed moisture at the bottom of the slag soil. This moisture is difficult to discharge, has a long disappearance period, and tends to gradually gather at the bottom. How to discharge the water adsorbed inside the slag soil in a timely and effective manner" and greatly increases the drainage efficiency of the slag field. The present invention inserts a ventilation pipe 42 into the pile 3 of the slag field 1, creates and utilizes the temperature difference between the slag field 1 and the periphery of the slag field 1, so that the inner side of the pile 3 can generate flowing air to take out the moisture. This air flow is continuous and long-term, thereby realizing the discharge of a large amount of moisture;

[0047] The present invention can set the circulation component 7 at a position far away from the slag field 1, select multi-point distribution to avoid concentration;

[0048] Specifically, the channel 45 opened on the ventilation pipe 42 is arranged at an angle, and the side of the channel 45 close to the outer wall of the ventilation pipe 42 is at a low position. The inner wall of the ventilation pipe 42 and the inner side of the channel 45 are embedded with absorbent sponges 46, which are used to increase the moisture exchange area and exchange rate.

[0049] Under the above arrangement, the channel 45 is arranged at an angle to prevent the dirt from entering the inner side of the ventilation pipe 42. The water-absorbing sponge 46 is filled into the channel 45, and the water-absorbing sponge 46 on the inner wall of the ventilation pipe 42 and in the channel 45 is arranged continuously, which can significantly increase the moisture exchange area and exchange rate when the air flows.

[0050] Specifically, the top of the vacuum cylinder 75 is fixedly connected with an outward-turned folded portion 711, and there is a height difference 79 between the height of the heat collecting pipe 77 in the vacuum cylinder 75 and the top of the vacuum cylinder 75. The existence of the height difference 79 and the folded portion 711 is used to reduce the air outside the vacuum cylinder 75 to be replenished to the vacuum cylinder 75, thereby increasing the suction force of the vacuum cylinder 75 toward the conical portion 710.

[0051] Specifically, a one-way drain valve 44 is provided on the connecting pipe 43, and the one-way drain valve 44 is arranged at the bottom end of the connecting pipe 43. The one-way drain valve 44 is arranged in the intercepting ditch 2 or the drainage ditch 6. The top of the ventilation pipe 42 is fixedly connected with a rain collecting cap 41, and the inner side of the bottom end of the rain collecting cap 41 is connected to the inner side of the top end of the ventilation pipe 42. When the width of the pile body 3 is greater than 2 meters, the ventilation pipe 42 is arranged at the edge of the pile body 3. When the width of the pile body 3 is less than 2 meters, the ventilation pipe 42 is arranged in the middle position of the pile body 3.

[0052] Under the above-mentioned setting, the setting of the ventilation pipe 42 can also play a role in anchoring the pile body 3 to prevent the pile body 3 from becoming unstable. The rain collecting cap 41 is also transparent and can collect rainwater near the ventilation pipe 42. When it rains, the rainwater is directly discharged into the intercepting ditch 2 or the drainage ditch 6 through the ventilation pipe 42, the connecting pipe 43 and the one-way drain valve 44, thereby reducing the amount of rainwater erosion on the pile body 3.

[0053] Specifically, a cross bar 72 is fixedly connected to the top of the support frame 71, one end of the cross bar 72 is rotatably connected to a reflector 74 via a hinge, the upper side of the support frame 71 is rotatably connected to an electric push rod 73 via a hinge, the other end of the electric push rod 73 is rotatably connected to the reflector 74 via a hinge, the reflector 74 faces south, and the angle of the reflector 74 is changed by the electric push rod 73 to reflect sunlight onto the heat collecting tube 77, thereby increasing the irradiation intensity of the heat collecting tube 77, and the heat storage member 78 is an iron sheet. The heat storage member 78 is an iron sheet, so that the heat collecting tube 77 can be maintained at a higher temperature during the day, thereby increasing the convection effect.

[0054] Example 2: This example is a further improvement of Example 1. Figure 1-8The drainage component includes an inner cylinder 51 and a controller 59. The bottom end of the water storage well 5 is connected to a drainage pipe 56. The bottom end of the water storage well 5 is fixedly connected to the inner cylinder 51. The input end of the drainage pipe 56 is arranged in the inner cylinder 51. The bottom end of the inner cylinder 51 is evenly provided with a water inlet check valve 57. The inner side of the inner cylinder 51 and the inner side of the water storage well 5 are both provided with a water level gauge 53. The end of the drainage pipe 56 is connected to an electric valve 58. When draining water, after the water level in the inner cylinder 51 begins to drop, the controller 59 controls the electric valve 58 to automatically close, so that the water in the drainage pipe 56 is in a closed state.

[0055] Specifically, the top end of the inner tube 51 is connected to an exhaust valve 52 for exhausting the air in the inner tube 51 when the water storage well 5 stores water.

[0056] Under the above setting, when it rains, the water level in the water storage well 5 gradually rises, and the water level gauge 53 in the water storage well 5 recognizes the rising water level and transmits the water level information to the controller 59. The controller 59 controls the exhaust valve 52 to open, and the water in the water storage well 5 enters the inner tube 51 through the water inlet check valve 57; after the water level in the water storage well 5 rises to the top of the water storage well 5, the water level gauge 53 in the inner tube 51 recognizes the water level in the inner tube 51 and transmits the water level information to the controller 59. When the inner tube 51 is full of water, the controller 59 controls the electric valve 58 to open and start draining; after the rain stops, the water level in the water storage well 5 gradually drops. When the water level in the inner tube 51 starts to drop, the controller 59 controls the exhaust valve 52 to close. The controller 59 controls the electric valve 58 to close, so that the water in the drain pipe 56 and the inner tube 51 is in a closed and flooded state, which is convenient for the next siphon drainage, thereby playing a role in low-power drainage.

[0057] Specifically, the drainage pipe 56 is connected to a connecting tube 54 , the inner side of which is rotatably connected to a generator flushed by water flow. A battery 55 is also provided at the water storage well 5 for supplying power to electrical facilities. When draining water, the generator is used to charge the battery 55 .

[0058] The present invention also discloses a drainage method for a slag yard, the steps of which are:

[0059] Step 1: When there is sunshine during the day, the heat collecting tube 77 is heated to generate an upward airflow, the vacuum pump 75 generates suction, the humidity of the stack body 3 is low, and a downward airflow is generated. The moisture in the stack body 3 will be discharged through the ventilation pipe 42, the connecting pipe 43, the vacuum pipe 76 and the vacuum pump 75 to achieve long-term continuous drainage;

[0060] Step 2: When there is no sunlight at night, the heat collecting tube 77 cools down quickly. Because the humidity temperature of the stack 3 is higher than that of the heat collecting tube 77, the stack 3 generates an upward airflow. The moisture in the stack 3 will be discharged through the vacuum cylinder 75, the vacuum pipe 76, the connecting pipe 43 and the ventilation pipe 42 to achieve long-term continuous drainage.

[0061] The steps also include:

[0062] Step 3: When it rains, the water level in the water storage well 5 gradually rises, and the water level gauge 53 in the water storage well 5 recognizes the rising water level and transmits the water level information to the controller 59. The controller 59 controls the exhaust valve 52 to open, and the water in the water storage well 5 enters the inner tube 51 through the water inlet check valve 57;

[0063] Step 4: After the water level in the water storage well 5 rises to the top of the water storage well 5, the water level gauge 53 in the inner tube 51 identifies the water level in the inner tube 51 and transmits the water level information to the controller 59. When the inner tube 51 is full of water, the controller 59 controls the electric valve 58 to open and start draining water;

[0064] Step 5: After the rain stops, the water level in the water storage well 5 gradually drops. When the water level in the inner tube 51 begins to drop, the controller 59 controls the exhaust valve 52 to close, and the controller 59 controls the electric valve 58 to close, so that the water in the drain pipe 56 and the inner tube 51 is in a closed state, which is convenient for the next siphon drainage.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage system for a slag dump, comprising a slag dump (1), characterized in that: A pile (3) is stacked inside the slag dump (1), a drainage ditch (2) is excavated on the outer edge of the slag dump (1), a drainage ditch (6) is excavated inside the slag dump (1), a water storage well (5) is connected to the drainage ditch (2) and the drainage ditch (6), a drainage assembly is arranged at the bottom end of the water storage well (5), and a ventilation anchor assembly (4) is arranged inside the pile (3); The ventilation anchor assembly (4) comprises a ventilation pipe (42), the ventilation pipe (42) being vertically arranged on the inner side of the pile (3), a channel (45) connecting the inner side and the outer side being opened on the ventilation pipe (42), a connecting pipe (43) being connected at the bottom ends of a plurality of the ventilation pipes (42), the connecting pipe (43) being horizontally arranged in the pile (3), a circulation assembly (7) being arranged on the outer side of the slag yard (1), the circulation assembly (7) comprising a support frame (71), one end of the support frame (71) being fixedly connected to a vacuum pump (75) The air pump (75) is made of a transparent material. The height of the air pump (75) is higher than the top height of the ventilation anchor assembly (4). The bottom end of the air pump (75) is connected to a conical portion (710). The bottom end of the conical portion (710) is connected to an air pump pipe (76). The bottom end of the air pump pipe (76) is connected to the connecting pipe (43). The air pump (75) is used to evacuate air so that a continuous air flow is generated inside the pile (3), which facilitates the rapid discharge of moisture adsorbed by the slag and increases the stability of the bottom layer of the pile (3). A heat collecting pipe (77) is fixedly connected to the inner side of the exhaust cylinder (75), and the inner side of the heat collecting pipe (77) is filled with a heat storage element (78). When there is sunlight during the day, the heat collecting pipe (77) is heated to generate an upward airflow, and the exhaust cylinder (75) generates suction. The humidity temperature of the stack body (3) is low, and a downward airflow is generated. The moisture in the stack body (3) is discharged through the ventilation pipe (42), the connecting pipe (43), the exhaust pipe (76), and the exhaust cylinder (75). When there is no sunlight at night, the heat collecting pipe (77) is quickly cooled. Because the humidity temperature of the stack body (3) is higher than that of the heat collecting pipe (77), the stack body (3) generates an upward airflow, and the moisture in the stack body (3) is discharged through the exhaust cylinder (75), the exhaust pipe (76), the connecting pipe (43), and the ventilation pipe (42).

2. The drainage system for a slag yard according to claim 1, characterized in that: The channel (45) provided on the ventilation pipe (42) is arranged in an inclined manner, and a side of the channel (45) close to the outer wall of the ventilation pipe (42) is at a low position. A water-absorbing sponge (46) is embedded on the inner wall of the ventilation pipe (42) and the inner side of the channel (45). The water-absorbing sponge (46) is used to increase the moisture exchange area and exchange rate.

3. The drainage system for a slag yard according to claim 2, characterized in that: The top end of the vacuum cylinder (75) is fixedly connected to an outwardly turned folded portion (711); a height difference (79) exists between the height of the heat collecting pipe (77) in the vacuum cylinder (75) and the top end of the vacuum cylinder (75); the height difference (79) and the folded portion (711) are used to reduce the amount of air outside the vacuum cylinder (75) that is replenished into the vacuum cylinder (75), thereby increasing the suction force of the vacuum cylinder (75) toward the conical portion (710).

4. The drainage system for a slag yard according to claim 3, characterized in that: The connecting pipe (43) is provided with a one-way drainage valve (44), which is arranged at the bottom end of the connecting pipe (43). The one-way drainage valve (44) is arranged in the intercepting ditch (2) or the drainage ditch (6). The top end of the ventilation pipe (42) is fixedly connected to a rain collecting cap (41), and the inner side of the bottom end of the rain collecting cap (41) is connected to the inner side of the top end of the ventilation pipe (42). When the width of the pile body (3) is greater than 2 meters, the ventilation pipe (42) is arranged at the edge of the pile body (3), and when the width of the pile body (3) is less than 2 meters, the ventilation pipe (42) is arranged in the middle of the pile body (3).

5. The drainage system for a slag yard according to claim 4, characterized in that: The top end of the support frame (71) is fixedly connected to a cross bar (72), one end of the cross bar (72) is rotatably connected to a reflector (74) via a hinge, the upper side of the support frame (71) is rotatably connected to an electric push rod (73) via a hinge, the other end of the electric push rod (73) is rotatably connected to the reflector (74) via a hinge, the reflector (74) faces south, and the angle of the reflector (74) is changed by the electric push rod (73) so that sunlight is reflected onto the heat collecting tube (77), thereby increasing the irradiation intensity of the heat collecting tube (77), and the heat storage member (78) is an iron sheet.

6. The drainage system for a slag yard according to any one of claims 1 to 5, characterized in that: The drainage component comprises an inner cylinder (51) and a controller (59); the bottom end of the water storage well (5) is connected to a drainage pipe (56); the inner cylinder (51) is fixedly connected to the inner side of the bottom end of the water storage well (5); the input end of the drainage pipe (56) is arranged in the inner cylinder (51); the bottom end of the inner cylinder (51) is evenly provided with water inlet check valves (57); the inner sides of the inner cylinder (51) and the water storage well (5) are both provided with water level gauges (53); the end of the drainage pipe (56) is connected to an electric valve (58); when draining water, after the water level in the inner cylinder (51) starts to drop, the controller (59) controls the electric valve (58) to close, so that the water in the drainage pipe (56) is in a closed state.

7. The drainage system for a slag yard according to claim 6, characterized in that: The top end of the inner cylinder (51) is connected to an exhaust valve (52) for exhausting the air in the inner cylinder (51) when the water storage well (5) is storing water.

8. The drainage system for a slag yard according to claim 7, characterized in that: The drainage pipe (56) is connected to a connecting cylinder (54), the inner side of which is rotatably connected to a generator for flushing by water flow. A storage battery (55) is also provided at the water storage well (5) for supplying power to electrical facilities. When draining water, the generator is used to charge the storage battery (55).

9. A method for draining a slag dump, using the drainage system for a slag dump as claimed in claim 8, characterized in that: The steps are: Step 1: When there is sunlight during the day, the heat collecting tube (77) is heated to generate an upward airflow, the vacuum pump (75) generates suction, the pile body (3) is humid and has a low temperature, and a downward airflow is generated. The moisture in the pile body (3) is discharged through the ventilation pipe (42), the connecting pipe (43), the vacuum pipe (76) and the vacuum pump (75), thereby achieving long-term continuous drainage; Step 2: When there is no sunlight at night, the heat collecting tube (77) cools down quickly. Since the humidity temperature of the stack (3) is higher than that of the heat collecting tube (77), an upward airflow is generated in the stack (3). The moisture in the stack (3) is discharged through the vacuum cylinder (75), the vacuum pipe (76), the connecting pipe (43) and the ventilation pipe (42), thereby achieving long-term continuous drainage.

10. The drainage method for a slag dump according to claim 9, characterized in that: The steps also include: Step 3: When it rains, the water level in the water storage well (5) gradually rises, and the water level meter (53) in the water storage well (5) recognizes the rising water level and transmits the water level information to the controller (59). The controller (59) controls the exhaust valve (52) to open, and the water in the water storage well (5) enters the inner tube (51) through the water inlet check valve (57); Step 4: After the water level in the water storage well (5) rises to the top of the water storage well (5), the water level gauge (53) in the inner tube (51) identifies the water level in the inner tube (51) and transmits the water level information to the controller (59). When the inner tube (51) is full of water, the controller (59) controls the electric valve (58) to open and start draining water; Step 5: After the rain stops, the water level in the water storage well (5) gradually drops. When the water level in the inner tube (51) starts to drop, the controller (59) controls the exhaust valve (52) to close, and the controller (59) controls the electric valve (58) to close, so that the water in the drainage pipe (56) and the inner tube (51) is in a closed state, which is convenient for the next siphon drainage.

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