A gravity energy storage and solid waste treatment integrated operation system

Abstract

The application discloses a kind of gravity energy storage and solid waste treatment integrated operation system, including high-position stockyard, low-position stockyard, transport track, transport train, solid waste heavy block, spraying device, power generation device.The system runs, first, solid waste to be handled is filled in the loading container with through hole after pretreatment and forms solid waste heavy block;Stationary reaction stage is sprayed by spraying device, and solid waste material occurs chemical and / or biological reaction;Circulating homogenization stage is transported by transport train between two stockyards, and synchronous realization ventilation and position adjustment;Periodically monitor solid waste treatment state during, remove from system after passing, and continue maintenance if not qualified.The system will solid waste treatment and gravity energy storage, power generation function organic fusion, realize solid waste harmless, stabilization treatment at the same time, through the circulation of solid waste heavy block and gravity potential energy conversion realizes clean energy storage and power generation, significantly improves resource utilization efficiency, and has environmental protection and energy benefit.

Description

Technical Field

[0001] This invention relates to the field of gravity energy storage and solid waste treatment technology, specifically to an integrated operation system for gravity energy storage and solid waste treatment. Background Technology

[0002] The current industrial solid waste generation is enormous, mainly concentrated in heavy industries such as mining, iron and steel metallurgy, thermal power, coal chemical industry, and alumina. The main categories include tailings, coal gangue, and smelting slag (steel slag / red mud / phosphogypsum), with annual tailings production exceeding 1.2 billion tons and accumulated red mud stockpiles reaching hundreds of millions of tons. Due to the complex composition of this type of solid waste, the high technical barriers to resource utilization, and the huge initial investment and operating costs of configuring specialized harmless treatment equipment, most industries currently employ extensive disposal methods such as stockpiling and landfilling, combined with microbial / chemical / natural reactions. This method not only occupies a huge amount of land resources, with a single large solid waste storage site (such as red mud ponds and tailings ponds) typically covering an area of ​​thousands or even tens of thousands of acres, seriously encroaching on arable land and ecological space; it also requires high investment in anti-seepage engineering costs, and the natural harmless treatment cycle of solid waste is extremely long, with the design service life of red mud storage alone reaching more than 10 years. During this period, it is easy to cause multiple ecological and safety risks such as soil pollution, groundwater leakage, landslides and dam failures, becoming a prominent bottleneck restricting the green development of related industries.

[0003] Meanwhile, the power grid's demand for large-scale, long-duration, and low-cost energy storage technologies is becoming increasingly urgent. Gravity energy storage, as a highly reliable, long-life, and environmentally friendly physical energy storage technology, achieves the mutual conversion of potential energy and electrical energy through the cyclic transportation of heavy objects, and has attracted widespread attention in the industry. However, the core bottleneck of existing gravity energy storage systems lies in the cost control of the energy storage medium: mainstream technologies use customized concrete blocks, steel ingots, or natural ores as energy storage weights. A single 100-megawatt-level gravity energy storage power station requires the configuration of tens of thousands or even hundreds of thousands of heavy object blocks, with a total weight volume of tens of thousands to hundreds of thousands of tons. The procurement and preparation cost of the energy storage weights alone is as high as hundreds of millions of yuan, which significantly restricts the large-scale promotion and application of this technology.

[0004] In the existing technology, industrial solid waste treatment and gravity energy storage systems are independent technical systems that have failed to form synergistic benefits, resulting in a difficult-to-resolve dual technical contradictions: on the one hand, solid waste treatment has long lacked continuous and efficient dynamic reaction conditions, and under the traditional stockpiling mode, the contact between solid waste and reaction reagents is insufficient, resulting in low efficiency and long cycle of harmless treatment; on the other hand, gravity energy storage systems rely on customized heavy objects as energy storage media, which keeps costs high.

[0005] In summary, the resource and environmental pressures caused by industrial solid waste stockpiling and the cost bottlenecks faced in promoting gravity energy storage technology are becoming increasingly prominent, while existing technologies have failed to organically integrate the two to achieve complementary advantages. How to construct a synergistic technology system for solid waste treatment and gravity energy storage, which can provide an efficient and harmless treatment path for bulk industrial solid waste while reducing the media cost of gravity energy storage systems, has become an urgent technical problem to be solved in this field. Summary of the Invention

[0006] In view of the above-mentioned shortcomings in the existing technology, the purpose of this invention is to provide an integrated operation system for gravity energy storage and solid waste treatment.

[0007] The technical solution adopted by the present invention to achieve the above objectives is as follows: An integrated gravity energy storage and solid waste treatment system includes: The high-level storage yard and the low-level storage yard have a difference in altitude; A transport track connects the high-level storage yard and the low-level storage yard; The transport train can run along the transport track between the high-level storage yard and the low-level storage yard; Solid waste bulk materials can be loaded onto the transport train and stacked in the high-level stockpile and / or the low-level stockpile's stockpile area; Loading and unloading devices are installed in the high-level stockpile and the low-level stockpile for transferring the solid waste bulk material between the transport train and the stockpile area; A spraying device, installed in the high-level stockpile and / or the low-level stockpile, is used to spray the reaction liquid onto the solid waste blocks located in the stockpile area; The power generation device can generate electricity when the transport train carrying the solid waste block runs from the high-level stockpile to the low-level stockpile. The system operation includes: Feeding and briquetting: After pretreatment, solid waste is filled into a loading container with multiple through holes to form solid waste briquettes, and the solid waste briquettes are stacked in the high-level stockpile and / or the low-level stockpile's stockpile area to enter the system as an energy storage medium; Static reaction: During the period when the solid waste blocks are stacked in the stockpiling area, the reaction liquid is sprayed through the spraying device to cause chemical and / or biological reactions in the solid waste; Circular equalization: The transport train circulates the solid waste block between the high-level storage yard and the low-level storage yard. The solid waste block is ventilated through the circular transport process, and the position of the solid waste block is moved through the loading and unloading action of the loading and unloading device during the circular transport process. Regular monitoring: The solid waste in the loading container is regularly monitored for treatment status. If the solid waste treatment reaches the predetermined qualified treatment target, the solid waste can be removed from the system and new solid waste to be treated can be put into the feeding and briquetting process; otherwise, it continues to enter the static reaction and circulation homogenization until the test is qualified.

[0008] Furthermore, the cyclical transportation includes an energy storage transportation state and a power generation transportation state. When the system is in energy storage transportation mode, the transport train loads solid waste blocks from the stockpiling area of ​​the low-level stockpile, unloads and stacks them in the stockpiling area of ​​the high-level stockpile, and returns to the low-level stockpile empty. This cycle of transportation is repeated until the last round of energy storage transportation is set. When the system is in power generation and transportation mode, the transport train loads solid waste heavy blocks from the high-level stockpile area, and after the transport drive power generation device generates electricity, it travels to the low-level stockpile area to stack and unload the solid waste heavy blocks, and returns to the high-level stockpile empty. This cycle of transportation is repeated until the last round of power generation and transportation is set. Both the high-level and low-level stockpiles have designated stacking areas. During the cyclical transportation of solid waste bulk materials, loading, unloading, and stacking operations alternate between the two stacking areas. Within the stacking areas, the direction perpendicular to the loading and unloading tracks of the transport trains is defined as the column direction, including L1…L… m Columns, defined vertically as layer directions, are used in cyclic homogenization. When solid waste blocks are loaded from one of the stockpiling areas onto a transport train, multiple layers of solid waste blocks in the same column are loaded onto the train from top to bottom. When they are transported to another stockpiling area for unloading and stacking, at least two layers of solid waste blocks in the same column from the original stockpiling area are stacked in different columns.

[0009] Furthermore, when the loading and unloading device loads the solid waste blocks from the stockpiling area onto the transport train, it loads them onto the transport train one by one from top to bottom, starting from the closest column to the transport train, and then transports them to another stockpiling area for unloading and stacking.

[0010] Furthermore, during unloading and stacking, multiple layers in the same column of the original stockpile area are stacked in the same layer or multiple layers in different columns, and then stacked upwards by column.

[0011] Furthermore, during unloading and stacking, the stacking order for materials at the same height is as follows: starting from the farthest column in the stacking area, the materials are laid out flat from far to near.

[0012] Furthermore, during the cyclic homogenization process, as the solid waste block is moved through the loading and unloading action of the loading and unloading device, the spraying device sprays the reaction liquid onto the solid waste block.

[0013] Furthermore, the spraying device sprays the solid waste blocks stacked in each round after the loading and unloading device completes the unloading and stacking of each round; or sprays the solid waste blocks once after the same layer is fully stacked; or sprays them intermittently multiple times during the process of stacking the solid waste blocks in the stacking area; or sprays the entire batch of stacked solid waste blocks in a concentrated manner after the loading and unloading device stacks the solid waste blocks in the stacking area.

[0014] Furthermore, the high-level storage yard and / or the low-level storage yard are provided with collection tanks for collecting the reaction liquid sprayed by the spraying device or the leachate after the solid waste blocks undergo biological and / or chemical reactions; The system also includes a liquid collection and recovery system connected to the collection tank for collecting and centrally processing the reaction liquid and / or leachate.

[0015] Furthermore, at least a portion of the transport train is provided with a liquid collection structure for collecting leachate dripping from the solid waste bulk during transport and / or loading and unloading, and guiding the leachate to the collection tank.

[0016] Furthermore, the solid waste includes at least one of red mud, steel slag, phosphogypsum, coal gangue, electrolytic manganese slag, iron tailings, and copper tailings. In the static reaction, the reaction liquid includes at least one of microbial agent, solidification reaction liquid, stabilization reaction liquid, neutralization and conditioning liquid, heavy metal chelation reaction liquid, and hydration curing liquid.

[0017] It also includes a control center, which is configured as follows: Record the stacking location of each solid waste block in the stockpiling area and its corresponding processing status; According to the preset strategy, the target stacking position of the solid waste block during the next loading and unloading is determined; Control the loading and unloading device to transfer the solid waste block to the target stacking location.

[0018] The beneficial effects of this invention are as follows: 1. Achieving deep synergy between solid waste treatment and gravity energy storage, breaking through the bottleneck of single technology: Transforming industrial solid waste into gravity energy storage medium not only solves the problems of high cost and large resource consumption of special media (concrete blocks, ore) in traditional gravity energy storage systems, but also overcomes the defects of high energy consumption, long cycle and secondary pollution risk of traditional solid waste treatment (landfill, solidification); Through the synergistic design of "static reaction (reaction liquid spraying) + circulation homogenization (circulation transportation ventilation + position movement)", the solid waste treatment process and the energy storage / power generation process are carried out simultaneously, without the need for additional land and energy, which greatly improves the overall utilization efficiency of the system.

[0019] 2. Shorten the solid waste treatment cycle and improve the stability of treatment effect: Traditional solid waste static reaction has problems such as uneven local reaction and poor ventilation, resulting in long treatment cycle and fluctuating effect. This system realizes heat dissipation and ventilation of solid waste blocks through circulating and homogenizing transportation. Combined with the position movement of the loading and unloading device to break the solid waste stacking and compaction state, it can make the reaction liquid fully contact the solid waste. At the same time, the reaction liquid spraying during the static reaction stage ensures the reaction conditions of solid waste. Compared with traditional technology, it can shorten the solid waste treatment cycle.

[0020] 3. Reduce energy storage system costs and optimize energy utilization efficiency: Solid waste as an energy storage medium eliminates the need for additional procurement and preparation, significantly reducing the initial investment cost of gravity energy storage systems. During system operation, off-peak electricity is used to drive transport trains to store energy, while during peak hours, the weight drives power generation by moving the trains downwards, achieving peak shaving and valley filling for the power grid and smoothing out fluctuations in new energy power generation. At the same time, the solid waste treatment process does not require additional energy consumption, realizing an energy closed loop of "treating solid waste is energy storage, and energy storage is treatment." The cost per kilowatt-hour over the entire life cycle is significantly lower than the combination of traditional gravity energy storage and independent solid waste treatment systems.

[0021] 4. Significant environmental benefits and realization of solid waste resource recycling: The entire process of pretreatment, curing and discharge of solid waste achieves harmlessness and stabilization, avoiding soil and groundwater pollution caused by traditional landfill. The treated solid waste can be used as building aggregate, roadbed material and other resources, improving the utilization rate of solid waste and reducing resource waste. The spray device equipped with the system acts directionally on the stockpile area. Combined with the through-hole design of the loading container, it ensures efficient use of the reaction liquid and no risk of excessive loss. Furthermore, the environmental friendliness can be further improved through the subsequent liquid collection and recycling system.

[0022] 5. Strong compatibility and flexible application in multiple scenarios: The loading container design of the solid waste bulk material can be adapted to different types of industrial solid waste (red mud, steel slag, phosphogypsum, etc.), and the reaction liquid type can be flexibly adjusted according to the characteristics of solid waste to meet the centralized treatment needs of various industrial solid wastes; the elevation difference of high / low-level storage yards, the length of transport tracks, the load capacity of transport trains and other parameters can be customized according to the terrain conditions and energy storage capacity requirements, which can not only meet the energy storage needs of small and medium-sized solid waste treatment plants, but also adapt to large-scale long-term energy storage projects on the grid side, with a wide range of application scenarios. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the circulating transport structure in an integrated gravity energy storage and solid waste treatment system according to the present invention. Figure 2 This is a flowchart illustrating the operation of an integrated gravity energy storage and solid waste treatment system according to the present invention. Figure 3 This is a schematic diagram of the high-level and low-level stockpiles of an integrated gravity energy storage and solid waste treatment system according to the present invention. Figure 4 This is a structural schematic diagram of the high-level and low-level stockpiles of the gravity energy storage and solid waste treatment integrated operation system of the present invention from another perspective. Figure 5 This is a top-view structural diagram of the high-level and low-level stockpiles of the integrated gravity energy storage and solid waste treatment system of the present invention. Figure 6 This is a schematic diagram of the high-level and low-level stockpile side view structures of an integrated gravity energy storage and solid waste treatment system according to the present invention. Figure 7 This is a schematic diagram of the structure of the high-level stockpile and low-level stockpile of the gravity energy storage and solid waste treatment integrated operation system of the present invention, showing the cooperation state of the collection tank and the liquid collection tray when the transport train stops at the loading and unloading track. Figure 8 This is a schematic diagram of the spray mechanism of an integrated gravity energy storage and solid waste treatment system according to the present invention. Figure 9 This is a schematic diagram of the structure of a transport train for an integrated gravity energy storage and solid waste treatment system according to the present invention; Figure 10 This is a schematic diagram of a solid waste block implementation method of an integrated gravity energy storage and solid waste treatment system according to the present invention. Figure 11 This is a schematic diagram of another embodiment of the solid waste block of the gravity energy storage and solid waste treatment integrated operation system of the present invention; Figure 12 This is a schematic diagram of another embodiment of the solid waste block of the gravity energy storage and solid waste treatment integrated operation system of the present invention; Figure 13 This is a schematic diagram of an embodiment of the gravity energy storage and solid waste treatment integrated operation system with carbon sequestration reaction according to the present invention; Figure 14 This is a schematic diagram of the stacking state of solid waste blocks in the stockpile area during unloading and stacking according to the present invention. Figure 1 ; Figure 15 This is a schematic diagram of the stacking state of solid waste blocks in the stockpile area during unloading and stacking according to the present invention. Figure 2 ; In the diagram: 1. Stacking area; 11. Stacking seat; 112. Trench; 2. Loading and unloading docking rail; 3. Loading and unloading device; 31. Grabber; 32. Support frame; 311. Grabber part; 312. Lifting mechanism; 313. Translation mechanism; 313. Trolley platform; 3131. Rail assembly; 3133. Traveling assembly; 3132. Spraying device; 4. Spraying mechanism; 41. Reagent supply tank; 42. Support frame; 411. Spray pipe; 412. Spray hole; 4121. Horizontal support rod; 413. Collection tank; 5. First collection area; 51. Second collection area; 52. Guide channel; 511. Solid waste block; 6. Loading container; 61. Transport train; 7. Collection tray; 71. Carriage; 72. Positioning column; 73. Power generation device; 9. Transport rail; 8. Cabin; 10. Passageway; 100. High-level storage yard A; Low-level storage yard B. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1-3 The integrated gravity energy storage and solid waste treatment system shown includes: High-level storage yard A and low-level storage yard B have a difference in altitude; Transport track 8 connects the high-level storage yard A and the low-level storage yard B; Transport train 7 can run along transport track 8 between high-level storage yard A and low-level storage yard B; Solid waste bulk 6 can be loaded onto transport train 7 and stacked in the stockpiling area 1 of high stockpile A and / or low stockpile B; Loading and unloading device 3 is set in high-level storage yard A and low-level storage yard B, and is used to transfer solid waste heavy blocks 6 between transport train 7 and storage area 1. Spraying device 4, located in high-level stockpile A and / or low-level stockpile B, is used to spray reaction liquid onto solid waste heavy blocks 6 located in stockpile area 1. The power generation device 9 can generate electricity when the transport train 7 carrying the solid waste block 6 runs from the high-level storage yard A to the low-level storage yard B. The system operation includes: Feeding and briquetting: After pretreatment, solid waste is filled into a loading container 61 with multiple through holes to form solid waste briquettes 6. The solid waste briquettes 6 are then stacked in the stacking area 1 of the high-level stacking yard A and / or the low-level stacking yard B, and enter the system as an energy storage medium. Static reaction: During the storage of solid waste blocks 6 in the stockpiling area 1, a reaction liquid is sprayed by a spraying device 4 to cause biological and / or chemical reactions in the solid waste. Circular homogenization: Solid waste block 6 is circulated between high-level storage yard A and low-level storage yard B by transport train 7. The solid waste block 6 is ventilated through the circular transportation process, and the position of solid waste block 6 is moved by the loading and unloading action of loading and unloading device 3 during the circular transportation process. Regular monitoring: The solid waste in the loading container 61 is regularly monitored for treatment status. If the solid waste treatment reaches the predetermined qualified treatment target, the solid waste can be removed from the system and new solid waste to be treated can be put into the feeding and briquetting process; otherwise, it continues to enter the static reaction and circulation homogenization until the test is qualified.

[0026] This invention utilizes a gravity energy storage and transportation system as a dynamic industrial solid waste reactor. Heavy blocks containing solid waste are placed in the stockpile area as the energy storage medium for energy storage, power generation, and transportation cycles. This solves the problems of high cost and resource consumption associated with traditional gravity energy storage systems using specialized media (concrete blocks, ore), and overcomes the drawbacks of traditional solid waste treatment (landfill, solidification) such as high energy consumption, long cycles, and secondary pollution risks. Through a synergistic design of "static reaction (reaction liquid spraying) + circulating homogenization (circulating transportation ventilation + location movement)," the solid waste treatment process and the energy storage / power generation process are carried out simultaneously, eliminating the need for additional land and energy, and significantly improving the overall utilization efficiency of the system.

[0027] The inherent "handling-transportation-stacking" cycle in gravity energy storage and transportation systems provides a universal and efficient physical enhancement platform for the harmless treatment of various industrial solid wastes. Whether it is necessary to break the passivation layer, dissipate reaction heat, or provide gas exchange, this dynamic process can provide targeted enhancement. Furthermore, by combining the positional movement of the loading and unloading device to break the compacted state of the solid waste stack and achieve dynamic turning, the reaction liquid and solid waste can be fully contacted during static reaction. Compared with traditional solid waste treatment technologies, the treatment cycle is significantly shortened, and the uniformity and thoroughness of the reaction are greatly optimized.

[0028] This system is mainly composed of eight core components, such as Figures 1-9 The system includes a high-level storage yard A and a low-level storage yard B with an elevation difference, a transport track 8 connecting the two, a transport train 7 that can circulate along the transport track 8, solid waste blocks 6 serving as both energy storage medium and the object of treatment, a loading and unloading device 3 for transferring solid waste blocks 6 between the transport train 7 and the storage area 1, a spraying device 4 for spraying the reaction liquid, a power generation device 9 that converts gravitational potential energy into electrical energy, and a control center that coordinates the operation of the entire system. All components work together to achieve simultaneous energy storage and solid waste treatment. The functions, structures, and roles of each core component are described in detail below: The high-level stockpile A and the low-level stockpile B are the core carrying areas of the system. They form the basis for gravitational potential energy conversion through a clear difference in altitude. The structures of the high-level stockpile A and the low-level stockpile B are identical, and both can be used as static reaction treatment and maintenance reaction sites for solid waste. Alternatively, one of them can be selected as the static reaction maintenance reaction site. In this embodiment, in order to accelerate the harmless treatment of solid waste, both the high-level stockpile A and the low-level stockpile B are set as static reaction treatment and maintenance reaction sites for solid waste. The high-level stockpile A and the low-level stockpile B are connected by a transport track 8. The solid waste heavy blocks 6 are circulated between the high-level stockpile A and the low-level stockpile B by a transport train 7. The transport track 8 is adjacent to the stockpile area 1 of the high-level stockpile A and the low-level stockpile B and is a loading and unloading docking track 2 for the transport train 7 to dock and realize the loading or unloading of the solid waste heavy blocks 6.

[0029] The high-level stockpile A and low-level stockpile B are equipped with stockpiling areas 1 for stacking solid waste blocks 6 made from solid waste to be treated, and spraying devices 4 for spraying reaction liquid onto the solid waste blocks 6 located in the stockpiling areas 1. Below the high-level stockpile A and low-level stockpile B, there are also collection troughs 5, which are recessed troughs used to collect the reaction liquid sprayed from the spraying devices 4 or the leachate from the biological and / or chemical reactions of the solid waste blocks 6. The collection troughs 5 are designed to prevent seepage and guide flow. The collection troughs 5 include a first collection area 51 located below the stockpile area 1, and a loading / unloading docking track 2 located within the stockpile area 1. The second collection area 52 is located in the stockpile area 1, and the first collection area 51 is located in the stockpile area 1. The first collection area 51 fully covers the solid waste block stacking area in the stockpile area 1 and the spraying range of the spraying device 4. It can ensure that all the sprayed waste liquid and heavy block leachate from each layer fall into the collection tank 5, achieving collection without dead corners. The second collection area 52 is used to collect leachate from the stockpile area 1 to the loading and unloading docking track 2. The inside and side walls of the collection tank 5 are completely covered with a seepage-proof layer (such as high-density polyethylene seepage-proof membrane, anti-corrosion concrete lining, etc.) to effectively prevent liquid leakage to the stockpile foundation and ensure the safety of the underground environment.

[0030] The system also includes a liquid collection and recovery system, which is connected to the collection tank 5 via a guide channel or guide pipe. This system is used to collect and centrally treat the reaction liquid and / or leachate. The liquid collection and recovery system integrates core waste liquid treatment and recovery equipment such as a pH neutralization device, a heavy metal treatment and recovery device, and a deep purification device. It performs harmless treatment on the leachate generated from solid waste, while achieving efficient recovery of harmful heavy metals. This ensures that the treated solution meets the standards and can be recycled into the spray device for reuse or discharged harmlessly.

[0031] To achieve end-to-end collection of sprayed liquid and leachate during stockpile operation, at least a portion of the transport train 7 is equipped with a liquid collection structure for collecting leachate dripping from solid waste blocks during transportation and / or loading / unloading, and guiding the leachate to the collection tank 5. In one embodiment, the liquid collection structure includes a liquid collection tray 71 mounted on the transport train. When the solid waste blocks 6 are loaded onto the transport train 7, they are placed on the liquid collection tray 71. The vertical projection of the loading or unloading trajectory of the loading / unloading device 3 between the stockpile area 1 and the transport train 7 falls within the range of the first liquid collection area 51, the second liquid collection area 52, and the liquid collection tray 71, ensuring that all dripping and splashing liquids during operation are collected by the corresponding liquid collection structure, preventing liquid from escaping to non-collection areas of the stockpile.

[0032] Between the loading / unloading docking track 2 and the second liquid collection area 52, the second liquid collection area 52 cannot be arranged infinitely close to the loading / unloading docking track 2. If it is too close, it will easily interfere with the docking position of the transport train 7, and at the same time, it will compress the track installation space, weaken the layout space and installation strength of the track foundation, which is not conducive to the stable layout of the track system. Therefore, when designing the liquid collection tray 71, the liquid collection tray 71 protrudes towards the second liquid collection area 52. When the transport train 7 docks at the loading / unloading docking track 2, from the vertical projection direction, the protruding part of the liquid collection tray 71 overlaps with part of the second liquid collection area 52. Through this design, without changing the track layout, without encroaching on the track foundation space, and without affecting the track installation strength, it effectively makes up for the gap between the second liquid collection area 52 and the loading / unloading docking track 2, eliminates the liquid dripping blind zone in the connection area, and allows the spray liquid and leachate generated during the transfer process to still be completely received by the liquid collection tray 71 and smoothly introduced into the second liquid collection area 52, realizing full-path collection without spillage or leakage.

[0033] In order to better guide the liquid from the second collection zone 52 to the first collection zone 51, the second collection zone 52 is set with a slope, with the side closer to the loading and unloading docking track 2 being the high slope side and the side closer to the first collection zone 51 being the low slope side. The first collection zone 51 is provided with a guide channel 511, which guides the reaction liquid and / or leachate into the guide trough or guide pipe and connects to the liquid collection and recycling system.

[0034] The high-level storage yard A and the low-level storage yard B achieve full-process collection of spray liquid and leachate through multi-level liquid collection design: the first liquid collection area 51 below the stockpile area 1, the second liquid collection area 52 on the slope between the track and the stockpile area 1, and the liquid collection tray 71 on the transport train 7 form a closed-loop collection system. Combined with the vertical projection overlap design and flow guidance linkage, it ensures that there is no waste liquid leakage or random flow during the entire process of solid waste block stacking, transfer and spraying.

[0035] Because the solid waste blocks 6 in the stockpile area 1 are stacked in multiple layers, which is not conducive to the outflow of leachate, multiple stacking seats 11 for stacking solid waste blocks 6 are set in the stockpile area 1. Each stacking seat 11 is provided with at least one groove 112, which is connected to the guide channel 511. By setting the groove 112 on the stacking seat 11, a guide gap can be formed between the bottom of the solid waste block 6 and the stacking seat 11, which facilitates the smooth flow of spray liquid and leachate into the groove 112 and avoids the accumulation of liquid at the bottom of the block. On the other hand, the groove 112 can orderly collect the waste liquid scattered in various places and guide it into the guide channel 511, improve the liquid guide efficiency and collection sufficiency, and at the same time reduce the spread and retention of liquid in the stacking area, reduce the erosion of the stacking seat 11 and the solid waste block 6, ensure the structural stability of the stockpile area and the cleanliness of the working environment, and further realize the efficient centralized recycling of waste liquid.

[0036] Transport track 8 connects the high-level storage yard A and the low-level storage yard B, providing support and guidance for the cyclical operation of transport train 7. Its core function is to construct a transport path of "upward energy storage - downward power generation." The track gradient, gauge, and other parameters are designed based on the altitude difference and transport load to ensure smooth and efficient passage of transport trains. Transport track 8 can adopt a single-track, double-track, or circular design. The circular track can support the synchronous operation of multiple transport trains 7, which can continuously circulate between the high-level storage yard A and the low-level storage yard B along the same direction of travel, meeting the needs of large-scale energy storage and solid waste treatment.

[0037] The transport train 7 serves as the transfer carrier for the solid waste bulk material and is also the core unit bearing gravitational potential energy. It can circulate back and forth between the high-level storage yard A and the low-level storage yard B along the transport track 8. The transport train 7 adopts a flexible connection design with multiple carriages 72 to adapt to the size and weight of the solid waste bulk material 6, possessing heavy-load transport capabilities. The transport train 7 travels on the transport track via a drive unit, which uses an electric motor as the power source to drive the transport train in cyclical transport between the high-level and low-level storage yards. The arrangement of the drive unit relative to the transport train and transport track can be configured in multiple ways according to the terrain conditions. The structure of the drive unit can be referenced from the applicant's earlier application CN. The drive device structure in 202320067168.9 adopts a drive wheel type drive method. At least a part of the transport train 7 is provided with a liquid collection structure for collecting the reaction liquid dripping from the solid waste heavy blocks during transportation and / or loading and unloading, and guiding the reaction liquid to the collection tank 5 or a separate liquid collection area. The liquid collection structure is usually set on the transport train 7 and includes multiple liquid collection trays 71. The carriage 72 carrying the solid waste heavy blocks 6 is provided with liquid collection trays 71. When the solid waste heavy blocks 6 are loaded onto the carriage 72, the bottom is fully covered above the liquid collection trays 71 to facilitate the collection of leachate from the solid waste heavy blocks on the transport train 7. In one embodiment, the liquid collection tray 71 is recessed into a trough and open on the carriage 72. The opening is provided with positioning posts 73 for positioning and supporting the solid waste heavy blocks. In another embodiment, the liquid collection tray 71 is recessed into a trough and arranged on the carriage 72. A seepage plate is placed above the trough. The seepage plate has multiple through holes. The solid waste heavy blocks are placed on the seepage plate. After collecting leachate, the collection trays can be guided to the collection tanks 5 in the high-level storage area A and the low-level storage area B. In one embodiment, each collection tray is connected to a liquid guide pipe that can be opened and closed. In another embodiment, multiple collection trays are connected by a flexible pipe, and one of the collection trays is connected to a liquid guide pipe that can be opened and closed.

[0038] Solid waste bulk 6 is the dual core of the system, serving as both an "energy storage medium" and a "treatment object." It is formed by pre-treating industrial solid waste and filling it into loading container 61. Loading container 61 adopts a high-strength, porous design, which ensures structural strength to withstand transportation and stacking loads while allowing the reaction liquid to fully permeate and air to circulate smoothly, providing conditions for the solid waste treatment reaction. It can also be used in conjunction with loading and unloading devices to transfer the solid waste bulk.

[0039] Existing energy storage blocks are generally made of concrete or ore. Regardless of whether existing concrete, ore, or the industrial solid waste blocks of this invention are used, pretreatment, demolding, and curing are required before they are stacked in the gravity energy storage yard. The main reason for setting up a loading container in this invention is to better spray the industrial solid waste with the reaction liquid. At the same time, during the pretreatment granulation or block making process, the industrial solid waste cannot be demolded into a whole block like concrete. First, the hardness is not sufficient; second, it is not conducive to the wetting reaction of the reaction liquid. Therefore, by using a loading container, the industrial solid waste can be simply pretreated into small-sized granules or blocks, which can then be filled into the loading container. The loading container plays the role of loading, positioning, and clamping, thereby simplifying the entire process.

[0040] The weight and volume of the solid waste rebar 6 are designed based on the system's energy storage capacity and the carrying capacity of the transport train 7. The conventional design is a standardized cubic structure for easy stacking. Its core functions are: firstly, as an energy storage medium, bearing gravitational potential energy through its own weight; and secondly, as a solid waste treatment carrier, completing the harmless reaction during the reaction process, ultimately achieving the resource utilization of solid waste. To ensure loading and unloading efficiency and reaction uniformity, the solid waste rebar 6 is arranged in a matrix pattern in the stockpiling area 1, such as... Figure 6 As shown, the specific layout is defined as follows: the direction perpendicular to the transport train 7, i.e., the loading and unloading track 2, is the train direction (X direction), and the stockpiling area 1 is divided into L1 to L2 according to this direction. m The columns (m is the number of columns, determined based on the width of the stacking area and the size of the solid waste blocks) are arranged in a vertical direction (Y direction), and the stacking area 1 is stacked layer by layer in this direction. This matrix arrangement not only facilitates the central control center to accurately locate the storage position of each solid waste block 6, but also, in conjunction with the "dynamic turning" action of the loading and unloading device 3, enables the orderly movement of the solid waste blocks 6 in the column and layer directions, further enhancing the uniformity of contact between the reaction liquid and the solid waste.

[0041] The loading and unloading device 3, located at the high-level stockpile A and the low-level stockpile B, is a key piece of equipment for the precise transfer of solid waste bulk 6 between the stockpile area 1 and the transport train 7.

[0042] The loading and unloading device 3 is mainly used to realize the position change of the solid waste block 6. Its specific structure is not limited and can adopt existing hoisting devices, such as gantry cranes, hoisting cranes, hoisting vehicles, hoisting robots, etc. It includes at least one gripper 31 that can move vertically and horizontally. The gripper 31 includes at least one gripping part 311 for gripping / releasing the solid waste block 6. The gripping part 311 can have various structural forms, such as grippers, robotic arms, hooks, couplers, etc. The gripper 31 can lift and lower the solid waste block 6 by moving vertically, and can displace the solid waste block 6 by moving at least partially horizontally between the loading and unloading track 2 and the stacking area 1. In one embodiment, at least part of the movement path of the gripper 31 between the loading and unloading track 2 and the stacking area 1 is set perpendicular to the loading and unloading track 2. In another embodiment, the gripper 31 moves back and forth between the loading and unloading track 2 and the stacking area 1 along a direction perpendicular to the loading and unloading track 2. This path planning setting can reduce the movement time of the loading and unloading device.

[0043] like Figures 3-5 As shown, the loading and unloading device 3 is equipped with a support frame 32 and at least one gripping member 31 that can move vertically and horizontally on the support frame 32. The gripping member 31 includes a lifting mechanism 312, a translation mechanism 313, and at least one gripping part 311 connected to the lifting mechanism 312. The translation mechanism 313 is disposed on the support frame 32, and the gripping part 311 is connected to the translation mechanism 313 through the lifting mechanism 312. The lifting mechanism 312 includes a power source, which can drive the gripping part 311 to move vertically through a connecting member. The connecting member can be... The rope and translation mechanism 313 can move the gripping part 311 in the horizontal direction. The translation mechanism 313 can be in the form of a mobile trolley, mainly including a trolley platform 3131, a traveling component 3132, and a track component 3133. The trolley platform 3131 is mounted on the traveling component 3132, and the track component 3133 is installed on the support frame 32 and is matched with the traveling component 3132. The lifting mechanism 312 is connected to the trolley platform 3131, and the traveling component 3132 drives the trolley platform 3131 to move back and forth on the track component 3133.

[0044] The loading and unloading device 3 can be equipped with multiple gripping components 31, and each gripping component 31 can be equipped with one or more gripping parts 311. The multiple gripping parts 311 can be arranged at intervals along an extension direction, which is parallel to the extension direction of the loading and unloading track. The loading and unloading track 2 can be arranged in a straight section. One gripping component can simultaneously grip multiple solid waste blocks 6 in multiple carriages 72 of the transport train 7, thereby improving the loading and unloading efficiency of the solid waste blocks 6.

[0045] The loading and unloading device 3, in coordination with the scheduling rhythm of the transport train 7 and the preset requirements for cyclic homogenization, controls the position of the solid waste heavy blocks 6 that are loaded onto the train and unloaded and stacked. This not only meets the energy storage and power generation transportation requirements in gravity energy storage transportation, but also enables "dynamic turning" by adjusting the stacking position of the solid waste heavy blocks, thereby strengthening the contact between the reaction liquid and the solid waste.

[0046] Spraying device 4 is used to spray reaction liquids for biological and / or chemical treatment of solid waste blocks 6 stacked in stockpile area 1, such as... Figures 6-8 As shown, the spraying device 4 includes a spraying mechanism 41 and a reaction reagent supply tank 42. The reaction reagent supply tank 42 stores one or more reaction solutions for biological and / or chemical treatment of the solid waste block 6 containing the industrial solid waste to be treated. It is connected to the spraying mechanism 41 to provide a stable core liquid source for the spraying mechanism. The reaction reagent supply tank 42 is a storage cavity made of corrosion-resistant material. At least one reaction reagent supply tank 42 is provided. In one embodiment, the reaction reagent supply tank 42 stores only one type of biological or chemical treatment reaction solution. The number of reaction reagent supply tanks 42 is configured according to the type of reaction solution required for the industrial solid waste to be treated. Each tank is connected to the spraying mechanism 41 through a pipeline. In another embodiment, the reaction reagent supply tank 42 is arranged with multiple solution chambers to classify the required reaction solutions into each solution chamber. Each solution chamber is connected to the spraying mechanism 41 through a pipeline.

[0047] The structure of the spraying device in this application is not limited. Any form that can achieve uniform spraying of solid waste blocks in the stockpile area and is compatible with the structure of the stockpile is within the scope of protection of this application, such as pipeline spraying structure, spraying arm spraying, mobile spraying vehicle spraying, etc.

[0048] In this embodiment, the spraying mechanism 41 shown adopts a pipeline spraying structure, including a support frame 411 and multiple spray pipes 412 disposed on the support frame 411. The spray pipes 412 can be stainless steel rigid pipes (with strong corrosion resistance) or high-strength acid and alkali resistant hoses. When a hose is used, its spray pipe 412 is connected to the support frame 411 through a support crossbar. The spray pipe 412 is provided with multiple spray holes 4121 for spraying reaction liquid onto the solid waste blocks 6. In one embodiment of the spray pipe arrangement, the spray pipe 412 is fixedly connected to the support frame 411, and its spray pipe 412 is arranged above the stacked solid waste blocks 6. Multiple spray pipes 4121 are fixedly arranged above the stacking area of ​​the solid waste blocks 6, and sprayed through the support frame 411. The number of spray pipes 412 or the location of spray holes 4121 are arranged to achieve full-area spraying of solid waste blocks 6 in all stacking areas 1 by the spraying mechanism 41; in order to make the reaction liquid spray more uniform, penetrate deeper into the solid waste blocks, and reduce the spray splash space around the spray liquid, another embodiment of the spray pipe arrangement is provided, in which the spray pipes and the support frame can be lifted and lowered, and multiple spray pipes are laid flat. In one embodiment, each spray pipe is lifted and lowered to the support frame through a lifting connector (the lifting connector can be a conventional lifting drive structure such as a screw lifting mechanism, a cylinder lifting mechanism, or an electric push rod lifting mechanism, not shown); in order to control the installation cost and reduce the number of lifting connectors, in one embodiment, such as Figure 8 The adjacent multiple spray pipes 412 or all spray pipes 412 shown are connected by the same set of horizontal support rods 413 and are connected to the support frame 411 by a lifting connector. Since the gripper 31 includes one or more gripping parts 311, which move vertically via the lifting mechanism, and can open and clamp, when multiple gripping parts 311 work simultaneously, the space reserved when adjacent gripping parts 311 open simultaneously is narrow, making it impossible for the spray pipes 412 to move through. Furthermore, the gripping parts 311 are installed on the support frame 32 via a translation mechanism 313. The translation mechanism 313 of the gripper 31 occupies a large and fixed space, thus limiting the operating space of the spray pipes 412 to the gripping parts 311 and the horizontal support frame 411. Between the moving mechanism 313, that is, between the spray pipe 412 and the gripping part 311 and the moving mechanism 313, in order to achieve spatial coordination between loading / unloading and spraying treatment and avoid interference in installation and operation, the gripping part 31 travels between two adjacent spray pipes 412. In a preferred gripping part operation mode, the gripping part 31 moves back and forth between the transport train 7 and the stacking area 1 along a direction perpendicular to the loading and unloading track 2 to load or unload the solid waste heavy blocks 6. The extension direction of its spray pipe 412 is perpendicular to the loading and unloading track 2.

[0049] In one embodiment, the spray holes 4121 on the spray pipe 412 are arranged in a row of forward spray holes 4121 directly downward along the extension direction of the spray pipe 412, and a row of lateral spray holes 4121 are arranged on one or both sides below the spray pipe 412. Each row of spray holes 4121 can operate independently or together and is controlled by the control center. Through this arrangement, multi-directional spraying is realized. When the spray pipe 412 is directly above the solid waste block 6, the front spraying area of ​​the solid waste block 6 can be increased. When the spray pipe 412 sprays the solid waste block 6 from the side, the spray pipe 412 can spray the side wall of the adjacent solid waste block 6.

[0050] To achieve spatial coordination between loading / unloading and spraying treatment and avoid interference between their operations, the stopping height of the spray pipe 412 is higher than the rising height required for the gripping part 311 to grip the highest layer of energy storage weight 6 during the operation of the loading / unloading device 3. After the loading / unloading device 3 completes its work, the gripping part 311 stops outside the stacking area 1, and the stopping height is lower than the stacking height of the energy storage weight 6. Through the height linkage control strategy between the spray pipe 412 and the gripping part 311, namely, the spray pipe avoids interference during the transfer operation at a high position and the gripping part stops at a low position after resetting, the movement interference between the two can be effectively avoided, while ensuring that there is no obstruction when the spraying operation is going down. The downward spraying method of the spray pipe 412 can significantly improve the wetting depth of the reaction liquid on the energy storage weight 6 and reduce the splashing and diffusion range of the reaction liquid, thereby improving the uniformity of spraying and operational safety.

[0051] The power generation device 9, located on the downhill section of the transport track 8, is the core equipment for converting gravitational potential energy into electrical energy. When the transport train 7 carrying the solid waste block 6 descends along the track, its gravitational potential energy is converted into the train's kinetic energy, which drives the power generation device 9 through a power transmission structure (such as the friction wheel contacting the drive plate), thus realizing the conversion of mechanical energy into electrical energy.

[0052] The control center can adopt an independent control mode, a general control and coordination mode, or a compatibility control mode. Independent control means all the aforementioned components are controlled independently. Compatibility control mode allows for independent control of some devices and collaborative control of others. The general control and coordination mode coordinates the operation of the transport train 7, loading / unloading device 3, spraying device 4, and power generation device 9, achieving coordinated operation of all components. Preferably, the general control and coordination mode is adopted, establishing communication with each component through the industrial control system to collect real-time information such as equipment operating status, solid waste treatment indicators, and power generation data. Based on preset logic, it automatically switches operating modes (energy storage transport, power generation transport, static reaction, and circulating homogenization). When solid waste treatment indicators are detected as not meeting standards, the static reaction and circulating homogenization cycles are automatically extended. When equipment malfunctions, an early warning is triggered, and a backup plan is switched to ensure the overall efficiency, stability, and safety of the system.

[0053] The system consists of eight core components that form an integrated operation system for gravity energy storage and solid waste treatment. The system's cyclical transportation includes energy storage transportation mode and power generation transportation mode, which alternate between the two modes.

[0054] When the system is in the energy storage and transportation state, the transport train 7 loads solid waste heavy blocks 6 from the stacking area 1 of the low-level stacking yard B, unloads and stacks them in the stacking area 1 of the high-level stacking yard A, and returns to the low-level stacking yard B empty. This cycle of transportation work continues until the last round of energy storage and transportation set by the control center. When the system is in power generation and transportation mode, the transport train 7 loads solid waste heavy blocks 6 from the stacking area 1 of the high-level stockpile A. After the transport driving power generation device 9 generates electricity, it travels to the stacking area 1 of the low-level stockpile B to stack and unload the solid waste heavy blocks 6. It then returns to the high-level stockpile A empty. This cycle of transportation work continues until the last round of power generation and transportation set by the control center.

[0055] System operation includes: Feeding and block making: After pretreatment, the solid waste is filled into a loading container 61 with multiple through holes to form a solid waste block 6. The solid waste block 6 is then stacked in the stacking area 1 of the high-level stacking yard A and / or the low-level stacking yard B, and enters the system as an energy storage medium.

[0056] The solid waste material for solid waste bulking is industrial solid waste, generally at least one of the following: red mud, steel slag, phosphogypsum, coal gangue, electrolytic manganese slag, iron tailings, and copper tailings.

[0057] Solid waste pretreatment includes one or more of the following: crushing, grinding, dewatering, washing, magnetic separation, high-efficiency stabilization and activation, acid-base regulation, and mixing with leaching accelerators. Before solid waste is rendered harmless, it needs to undergo pretreatment, such as crushing, grinding, and magnetic separation, to adapt to the subsequent reaction liquid. The pretreatment varies depending on the type of industrial solid waste. For example, red mud is generally crushed and dewatered; steel slag is generally crushed and magnetically separated; and phosphogypsum is washed and subjected to acid-base regulation. These are all pretreatment operations in the harmless treatment process of each type of solid waste, and the selected processes are conventional for each type of solid waste.

[0058] In this system design, to allow for reaction gaps in the solid waste and facilitate loading into the container, the solid waste is typically pre-treated and compressed into several granules or blocks, which are then filled into the loading container to form solid waste blocks. In this embodiment, there are no strict requirements on the size of the granules or blocks for each type of industrial solid waste. The solid waste can be processed into granules or blocks of a corresponding size range according to the reaction requirements of each type of industrial solid waste and then filled into the loading container. Compared to the strict size requirements for the blocks made from existing concrete, there are no requirements on the size of the pre-treated blocks made from industrial solid waste. The loading container serves to load, position, and clamp the solid waste.

[0059] Specific examples of solid waste selection and pretreatment are as follows: Taking red mud pretreatment as an example: broken; Dehydration: Dehydrate the wet red mud to a moisture content of 25-30%; Conditioning: Adding 5-8% of cementitious materials to the mixture can provide initial strength; Granulation and molding: Using a roller granulator or briquetting machine, the mixture is pressed into porous particles of 3-5cm, with a porosity controlled at 30-35%; The pretreated granular red mud is loaded into a loading container.

[0060] Taking steel slag pretreatment as an example Crushing: efficiently crushing and grinding steel slag to a certain fineness; Magnetic separation: The crushed steel slag is subjected to magnetic separation to recover residual metal particles; High-efficiency stabilization treatment: Using "steam curing" or "pressurized hydrothermal treatment", under controllable temperature and pressure conditions, free calcium oxide and magnesium oxide are forced to hydrate into stable calcium hydroxide and magnesium hydroxide, completely eliminating the source of volume expansion; Block forming: The steel slag powder after anodizing is mixed with a binder and then pressed into blocks; The pre-treated blocky steel slag is loaded into a loading container.

[0061] Taking phosphogypsum pretreatment as an example Water washing: First, the phosphogypsum is washed countercurrently to remove most of the soluble phosphorus, fluorine and some acidic substances. The washing liquid is then sent to the phosphorus / fluorine recovery system. Acid-base regulation: Add alkaline materials such as lime and steel slag to the washed phosphogypsum to neutralize the residual acidity and convert heavy metals into a more stable hydroxide form, while adjusting the material to neutral or slightly alkaline. Block forming: The stabilized phosphogypsum is mixed with a small amount of binder and pressed into blocks; The pretreated block phosphogypsum is loaded into a loading container.

[0062] Taking coal gangue pretreatment as an example Crushing: Mixing and crushing coal gangue from different sources and with different compositions to achieve material homogenization; Acid-base regulation: Adding alkaline substances such as lime achieves a dual purpose: ① neutralizing potential acidity; ② forming a dense passivation layer on the surface of pyrite, inhibiting the exothermic oxidation during transportation and storage, and fundamentally preventing spontaneous combustion; Leaching accelerator mixing: According to the occurrence state of the target metal, an appropriate amount of accelerator (such as ammonium sulfate, oxidant or specific microbial nutrients) is mixed to create conditions for subsequent leaching. Block forming: Pre-treated coal gangue is mixed with a binder and pressed into blocks; The compressed phosphogypsum blocks are loaded into loading containers.

[0063] Iron tailings pretreatment involves fine grinding, mixing with leaching accelerators, and finally mixing with binders, followed by pressing into blocks. The pressed iron tailings blocks are then loaded into loading containers.

[0064] Copper tailings pretreatment involves acid-base regulation (adding 3-5% alkaline material to the tailings) and stirring until stable, then adding a binder, mixing, and pressing into blocks. The pressed copper tailings blocks are then loaded into loading containers. The binder can be 3% Portland cement, geopolymer, or cementitious material, etc.

[0065] Pre-treatment of each type of solid waste, including granulation or block forming, is a conventional pre-treatment process for that type of solid waste and will not be elaborated upon here.

[0066] The pretreated solid waste is loaded into loading container 61 to form solid waste weight 6, which serves as the energy storage medium and solid waste treatment carrier of the system. Loading container 61 can be a cubic structure or other stackable shape, and its top, bottom, and sides are perforated. Figure 11 The diagram shows an embodiment of a solid waste bulk material, which is an energy storage bulk material formed by filling a loading container 61 with pretreated granular industrial solid waste. Figure 10 The diagram shows another embodiment of an energy storage block, which is an energy storage block formed by filling a loading container 61 with pre-treated and compressed industrial solid waste. In one embodiment, when the solid waste particles are small, small-diameter plates can be installed around the loading container and at the top and bottom to both satisfy the ventilation effect and prevent leakage of granular solid waste. Specifically, as shown... Figure 12 The diagram shown is a schematic representation of another embodiment of an energy storage heavy block.

[0067] In high-level storage area A and low-level storage area B, the pretreated solid waste heavy block 6 is placed according to "from column L1-L". m Column, C1 layer - C n The layers are stacked sequentially in the stacking areas 1 of the high-level stacking yard A and the low-level stacking yard B. In the stacking area 1, m columns are divided vertically along the loading and unloading parking track 2 of the transport train 7. Each column has multiple layers. In the initial stacking, one implementation is to fully stack in one stacking area 1 of the high-level stacking yard A or the low-level stacking yard B. In another implementation, the high-level stacking yard A or the low-level stacking yard B is partially stacked to facilitate the cyclic loading and unloading of solid waste blocks 6 in the two stacking areas 1 by the transport train 7.

[0068] Static reaction: During the storage of solid waste lumps 6 in the stockpiling area 1, a reaction liquid is sprayed by a spraying device 4 to cause biological and / or chemical reactions in the solid waste. The reaction liquid includes at least one of microbial agents, solidification reaction liquid, stabilization reaction liquid, neutralization and conditioning liquid, heavy metal chelation reaction liquid, and hydration curing liquid.

[0069] The reaction liquid in stockpiling area 1 is selected and adjusted according to the solid waste material in solid waste weight block 6. Since the harmless treatment cycle of solid waste is relatively long, it is generally treated in batches. That is, the same type of solid waste to be treated is put into the stockpiling areas of high-level stockpile A and low-level stockpile B in one batch, thereby reducing the adjustment of reaction liquid. Alternatively, stockpiling area 1 can be divided into sub-stockpiling areas according to columns, and solid waste weight blocks of different solid waste materials can be stacked in the divided sub-stockpiling areas. Thus, the reaction liquid is adjusted according to the location and sprayed with the reaction liquid that matches the corresponding solid waste material.

[0070] The reaction solution is sprayed onto the solid waste block 6 through the aforementioned spraying device 4. The reaction solution is matched according to the solid waste material. Taking the preparation of reaction reagents for red mud, steel slag, and phosphogypsum as an example: When the solid waste is red mud, the reaction reagents include an alkali activator and a dealkali solution. When the red mud solid waste blocks are first piled up, the alkali activator is sprayed at intervals of 2 to 4 hours, with a single spray volume of 1 to 2 L / m². After the pile is piled up for 12 to 48 hours, the dealkali solution is sprayed at intervals of 1 to 3 hours, with a single spray volume of 1.5 to 2.5 L / m². The pile is piled up for 12 to 48 hours. The reaction solutions are sprayed alternately in this manner. The alkali activator is water glass solution or sodium hydroxide solution; the dealkali solution is water or dilute acid solution.

[0071] Alternating spraying of alkali activator and dealkali removal solution to treat red mud is a common treatment method in red mud treatment. The process mode of alternating spraying of alkali activator and dealkali removal solution realizes the step-by-step reaction of solidification and shaping followed by leaching and dealkali removal. This not only ensures the structural strength and stability of the red mud solid waste, but also continuously removes internal alkaline substances, significantly reduces the leaching pH of red mud and the amount of alkali metal ions dissolved, and has good dealkali removal uniformity.

[0072] When the solid waste is steel slag, the reaction reagent is selected as an ammonium salt-organic acid composite leaching agent (such as the ammonium sulfate-oxalic acid system). This system can selectively leach vanadium and chromium through complexation under near-neutral conditions, while the leaching rate of large amounts of calcium, iron and silicon is very low. This achieves highly selective leaching with low impurity load, thereby achieving the leaching of heavy metals and reducing the heavy metal content in the steel slag.

[0073] When the solid waste is phosphogypsum, a composite leaching agent (such as an ammonium sulfate-citric acid mixed solution) is sprayed. This system can selectively complex and leach rare earth elements under weakly acidic conditions, while dissolving less of the phosphogypsum matrix, achieving efficient and low-consumption extraction of target elements. Then, a precipitant is sprayed to further solidify the residual phosphorus, fluorine, and heavy metals in the leached phosphogypsum, thereby achieving the dissolution of heavy metals from the phosphogypsum.

[0074] The selection of reaction solutions for solid waste treatment is based on the selection of reaction reagents for different harmful components of solid waste. For example, the dealkalization of red mud and the leaching of heavy metals from phosphogypsum, coal gangue, steel slag, and iron tailings all follow conventional process selection principles. Therefore, the selection of reaction reagents for all solid wastes will not be elaborated here.

[0075] In this embodiment, the reaction reagents for each type of solid waste can be selected using one or more reaction reagents depending on the reaction process. The reaction reagents can be at least one of the following: microbial inoculant, solidification reaction solution, stabilization reaction solution, neutralization and conditioning solution, heavy metal chelation reaction solution, and hydration curing solution. Furthermore, the selection and dosage of the reaction solution for each type of solid waste follow the actual process requirements and are controlled by the control center.

[0076] During the static reaction process, the solid waste block 6 is stacked in the stockpile area 1. The spraying device 4 sprays the solid waste block 6 stacked in the stockpile area 1 intermittently multiple times. The spraying mechanism 41 is connected to one or more reaction reagent supply tanks 42. Each reaction reagent supply tank 42 is equipped with one or more solution chambers. Each solution chamber contains the microbial reagent or chemical reagent corresponding to the solid waste to be treated that enters the system. Its spraying mechanism 41 is connected to all solution chambers. The selection of spraying reagent, spraying volume and spraying frequency of the spraying mechanism 41 are controlled by the control center.

[0077] During the static reaction, the spraying device 4 sprays the reaction liquid. In one embodiment, the spraying device 4 sprays the entire uppermost layer of solid waste blocks 6 in the stockpile area 1. The reaction liquid flows along the surface of the solid waste blocks and penetrates downwards evenly through the pores of the loading container 61 and the gaps between the solid waste particles, ensuring that all layers of solid waste in the same row can fully contact the reaction liquid from top to bottom. In another embodiment, the spraying device 4 travels vertically along a preset path between adjacent solid waste blocks, spraying the side walls of the solid waste blocks. In yet another embodiment, the spraying device 4 performs an overall spraying operation on the uppermost layer of solid waste blocks 6 or sprays the side walls of the solid waste blocks 6 downwards, with the two spraying operations alternating. Through this spraying operation, both the upper layer spraying ensures overall coverage and vertical penetration, while the side wall spraying strengthens lateral contact, effectively avoiding "surface wet, interior dry" and "front contact, side wall omissions". This significantly improves the sufficiency and uniformity of contact between solid waste and reaction liquid, further ensuring the stability of the treatment effect during the static reaction stage.

[0078] During the spraying process, the sidewalls of the solid waste block 6 are sprayed, the forward spray holes of the spray pipe 412 are closed, and the side spray holes are opened; when the uppermost solid waste block 6 is sprayed as a whole, both the forward spray holes and the side spray holes are opened.

[0079] Because industrial solid waste, after being mixed and reacted in the reaction liquid, still contains a large amount of activated calcium during the dealkalization and heavy metal content reduction process, it is a perfect carbonization agent, such as steel slag. Therefore, Figure 13 The schematic diagram shows an embodiment of an integrated gravity energy storage and solid waste treatment system with carbon sequestration reaction. A high-level storage area A and / or a low-level storage area B are arranged in a compartment 10. The compartment 10 has an opening 100 for the transport train 7 to pass through in the direction extending from the loading / unloading docking track 2. During the static reaction process, after the solid waste undergoes a biological and / or chemical reaction with the sprayed reaction liquid, CO2 is introduced into the compartment 10 into the solid waste block 6. After sufficient contact with the reacted solid waste, a carbonization reaction occurs with the CO2, generating calcium carbonate crystals, thus achieving carbon sequestration. It can also introduce treated industrial waste gas (such as carbon dioxide-containing waste gas from power plants, cement plants, and aluminum plants), thereby completing both the harmless treatment of solid waste and the disposal of industrial carbon dioxide during gravity energy storage and transportation.

[0080] Ventilation units are installed simultaneously in the high-level storage area A and the low-level storage area B. These units work in conjunction with the spraying device to promptly remove the heat generated during the contact between solid waste and reaction liquid through a combination of forced ventilation and natural ventilation. This effectively reduces the internal temperature of the stack and avoids fluctuations in reaction efficiency or impacts on the stability of the stack structure caused by local overheating, ensuring a stable and controllable process during the static reaction stage.

[0081] The high-level and low-level stockpiles are arranged as solid waste reactors, which are equipped with various sensors such as pH detectors, temperature detectors, humidity detectors, and carbon dioxide detectors. These sensors are electrically connected to the control center to monitor the reaction status in real time and adjust the reaction liquid and supply based on the reaction status. At the same time, the degree of harmless treatment of the solid waste can also be checked periodically.

[0082] Cyclic homogenization During the static reaction, the reaction between solid waste and the reaction liquid will generate heat. The solid waste blocks stacked in the middle area between the high-level stockpile A and the low-level stockpile B are densely packed, resulting in poor ventilation and heat accumulation. This will not only inhibit the reaction process and reduce the processing efficiency, but may also affect the stability of the stockpile structure due to excessively high local temperatures.

[0083] In the cyclic homogenization process, the cyclic transportation includes energy storage transportation and power generation transportation. When the system is in either energy storage or power generation transportation mode, solid waste blocks 6 are loaded and unloaded in the high-level storage yard A and low-level storage yard B via transport train 7. During the loading and transportation of solid waste blocks 6, the solid waste is exposed to the air, achieving efficient gas exchange and heat dissipation. At the same time, the position control of loading and unloading in the high-level and low-level storage yards B can achieve "dynamic turning" of solid waste blocks in the stockpiling area, effectively breaking the reaction saturation layer of local solid waste blocks formed by spray reaction when the solid waste blocks are statically stacked. This ensures uniform spray reaction and ventilation of all solid waste blocks in the stockpiling area and promotes the overall reaction efficiency.

[0084] Both the high-level stockpile A and the low-level stockpile B have stockpiling areas 1. During the cyclical transportation process, the solid waste blocks 6 are loaded onto and unloaded in the two stockpiling areas 1 in alternating operations. Within stockpiling areas 1, the direction perpendicular to the loading and unloading tracks of the transport trains is defined as the column direction, including L1...L m A column, defined vertically as a layer, When solid waste blocks 6 are loaded from one of the stockpiling areas 1 onto the transport train 7, multiple layers of solid waste blocks 6 in the same column are loaded onto the train from top to bottom. When unloading and stacking them in another stockpiling area 1, at least two layers of solid waste blocks in the same column from the original stockpiling area are stacked into different columns. The solid waste blocks in the stockpiling area are arranged in a column-to-layer matrix. By loading them from one stockpiling area onto the train from top to bottom in columns, and then unloading and stacking them in another stockpiling area, at least two layers of solid waste blocks in the same column from the original stockpiling area are distributed into different columns. There are various stacking methods, such as... Figure 14 As shown, four stacking states of solid waste blocks during unloading are listed: a) spreading multiple layers of solid waste blocks from the same column in the original stockpile area into different columns; b) spreading multiple layers of solid waste blocks from the same column in the original stockpile area into multiple different columns, and then stacking them layer by layer to the next layer; c) spreading multiple layers of solid waste blocks from the same column in the original stockpile area into multiple different columns, and then stacking them layer by layer to the next layer, with the columns separated; d) spreading two columns from the same column in the original stockpile area into different columns, and then stacking them layer by layer from the farthest column. This achieves the goal of spreading solid waste blocks, which were originally stacked in columns, into multiple columns when entering another stockpile area, realizing dynamic turning of the solid waste blocks, making the contact between the solid waste blocks and the reaction liquid more uniform, improving the solid waste treatment efficiency, and shortening the solid waste treatment time.

[0085] In a single round of transportation, when loading heavy solid waste blocks from a stockpile area onto the train, the heavy solid waste blocks are divided into L1-L along the vertical direction of the train's loading and unloading tracks. mThe solid waste is arranged in columns and vertical layers. To ensure loading and unloading efficiency, in one embodiment, when the loading and unloading device loads the solid waste blocks from the stockpile area onto the transport train, it starts from the column closest to the transport train and loads them layer by layer from top to bottom onto the transport train. Then, it is sequentially transported to another stockpile area for unloading and stacking. That is, it starts from the column L1 closest to the transport train and loads it layer by layer from top to bottom, and then loads L2, L3...L... m The loading process involves loading solid waste blocks one column at a time. While loading the next column of solid waste blocks, the previous column is partially or fully loaded, providing transfer space for the loading and unloading equipment. The control center automatically plans the shortest movement path based on the coordinates of the target solid waste blocks, achieving a straight-line movement from the starting position to the target position. Compared to a combination of lifting and translating movements to the target position, this significantly shortens the operating path of the loading and unloading equipment and improves loading efficiency.

[0086] When loading onto the train, there is no requirement to grab each column sequentially or to grab the entire column in order. When the loading and unloading device loads the solid waste blocks from the stockpile area onto the transport train, it starts loading from the column closest to the transport train, proceeding column by column. This includes loading from top to bottom from the nearest column, and then loading column by column L2, L3...L... m The system can capture data sequentially from top to bottom; it also includes partial capture of each column. Both methods can achieve a straight-line path operation mode from the starting position to the target position for columns other than L1, thus improving the system loading efficiency.

[0087] In a single-cycle transport, the loading and unloading device operates in a straight-line path mode by grabbing and loading the truck column by column, which improves the loading efficiency. By unloading and stacking solid waste blocks in different columns of the same column, the multi-layer solid waste blocks in the original stockpile area are stacked in at least two different columns. This allows the solid waste blocks in the same column to be laid flat in multiple columns, thus achieving forced misalignment and dispersed arrangement of the solid waste blocks. This completely breaks the material compaction layer and reaction saturation layer formed by traditional static stacking. This arrangement ensures the efficiency of the gravity energy storage cycle transport process and meets the requirements of dispersed arrangement of solid waste treatment to achieve its turning, thereby promoting the uniform integration of reaction liquid and solid waste blocks.

[0088] During the cyclic homogenization process, the loading and unloading of solid waste blocks is carried out by the loading and unloading device. At the same time, the spraying device sprays the reaction liquid onto the solid waste blocks, which greatly improves the uniformity of the reaction liquid penetration and the ventilation and permeability of the pile. This allows the solid waste to fully contact the reaction liquid and react more thoroughly, effectively shortening the harmless treatment cycle.

[0089] When unloading and stacking into multiple columns, the columns can be laid on the same layer or multiple layers, and the columns can be spaced apart or adjacent to each other. The specific stacking method is not limited.

[0090] During unloading and stacking, stacking begins from the column furthest from the transport train. At least two layers of solid waste from the original stockpile area are moved to different columns, and the remaining layers are stacked upwards one by one. Starting from the furthest column reduces path interference during stacking and also moves the solid waste from the original stockpile area to the side, achieving a change in the position of the upper and lower layers.

[0091] In one embodiment, during unloading and stacking, multiple layers of the same column in the original stockpile area are stacked in the same layer or multiple layers in different columns, and then stacked in columns. This involves first stacking multiple layers of the same column in the original stockpile area in different columns, completing the laying, and then placing the remaining material on top, such as... Figure 15 As shown, two stacking states of solid waste blocks during unloading and stacking are listed: e) stacking multiple layers of the same column in the original stockpile area, then stacking the next layer column by column; f) stacking multiple layers of the same column in the original stockpile area, then stacking the next layer with columns separated. This achieves layer-by-layer stacking. With the help of spraying reaction liquid, after the full column stacking of the same layer is completed, the spraying device descends to the top of the solid waste block for a spray. The spraying device descends to the top of the solid waste block for close-range spraying, avoiding the problems of splashing and uneven diffusion of reaction liquid caused by traditional high-level spraying. The reaction liquid can directly act on the surface of all solid waste blocks in a single layer.

[0092] As one implementation method, during unloading and stacking, the stacking order for materials at the same height is as follows: starting from the farthest column in the stockpile area, the materials are laid out flat column by column from far to near. This column-by-column flat stacking allows for multi-column, layer-by-layer stacking, which is more conducive to spraying operations.

[0093] During the cyclic homogenization process, the solid waste blocks are transported in a cyclical manner through loading, transportation, and unloading. The dynamic turning of the solid waste blocks is achieved by relying on this inherent cyclical process. In the static stacking stage after the dynamic turning is completed, the solid waste blocks are sprayed with reaction liquid through a spraying device to simultaneously carry out the static reaction, forming an integrated solid waste maintenance mode that combines dynamic turning and static spraying.

[0094] Specifically: in the energy storage transportation state and / or the power generation transportation state, the spraying device sprays the solid waste blocks stacked in each round after the loading and unloading device completes the unloading and stacking of each round of solid waste blocks; or sprays the solid waste blocks once after the full stacking of the same layer is completed; or sprays the solid waste blocks intermittently multiple times during the process of stacking the solid waste blocks in the stacking area; or sprays the entire batch of stacked solid waste blocks in a concentrated manner after the loading and unloading device stacks the solid waste blocks in the stacking area.

[0095] Regular monitoring: The solid waste in the loading container is regularly monitored for treatment status. If the solid waste treatment reaches the predetermined qualified treatment target, the solid waste can be removed from the system and the new solid waste to be treated can be put into the material block making process; otherwise, it continues to enter the static reaction and circulation homogenization until the test is qualified.

[0096] Because solid waste treatment has a long cycle, its periodic testing can be set to be conducted once every few months in the early stages and monthly in the later stages.

[0097] Taking red mud as an example, the pretreatment qualification standards are generally set as follows: the compressive strength of red mud-based particles ≥ 15 MPa, Na⁺ leaching concentration ≤ 0.43 g / L, and pH value reaching 7–7.5. Taking steel slag as an example, the pretreatment qualification standards are: the compressive strength of steel slag-based particles ≥ 18 MPa, stable delayed leaching of calcium ions without continuous precipitation, a stable pH value of the leachate between 7.0 and 8.0, qualified volume stability, and no subsequent expansion or cracking. Each type of industrial solid waste has specific qualification standards for disposal, and the pretreatment qualification standards vary for different types of industrial solid waste.

[0098] The core of this invention lies in completely adopting the existing conventional pretreatment processes and reaction liquid selection mechanisms of various industrial solid wastes without additional modifications to the existing mature harmless treatment process system. It simply integrates the complete harmless treatment process of various solid wastes into the gravity energy storage system's operational architecture, directly using the high-level and low-level stockpiles of the gravity energy storage system as large-scale reaction and curing sites for the harmless treatment of solid wastes. Relying on the natural static storage conditions of the stockpiles, it undertakes the static curing and reaction liquid addition steps required in conventional solid waste treatment processes. Simultaneously, by utilizing the inherent cyclic loading and unloading and reciprocating transfer conditions of gravity energy storage, dynamic ventilation and spontaneous turning effects are formed, effectively enhancing the uniformity of reaction liquid penetration and the gas-solid contact efficiency of materials, significantly improving the harmless treatment process and overall treatment effect of solid wastes.

[0099] Before carrying out harmless treatment, various industrial solid wastes undergo pretreatment processes to adapt to the subsequent reaction reagent treatment and stabilization requirements. Common processes include crushing, grinding, magnetic separation, dewatering, washing, and acid-base adjustment. Different industrial solid wastes follow their respective industry's conventional pretreatment processes with differentiated configurations: for example, red mud is conventionally pretreated by crushing and dewatering, steel slag is conventionally pretreated by crushing and magnetic separation, and phosphogypsum is conventionally pretreated by washing and acid-base adjustment. Other industrial solid wastes such as coal gangue and iron tailings are also matched with their respective mature harmless pretreatment paradigms. In this invention, the pretreatment methods for various solid wastes all follow their existing conventional and mature processes, without the need to create additional new pretreatment processes.

[0100] Meanwhile, the selection of reaction reagents suitable for various types of industrial solid waste is also based on the characteristics of the harmful components of the solid waste itself and the conventional process principles: for red mud, the corresponding reaction system is selected with dealkali removal as the core objective; for phosphogypsum, coal gangue, steel slag, iron tailings, etc., the corresponding reaction reagents are matched with heavy metal stabilization and inhibition of harmful components as the objectives. All of these follow the conventional reaction mechanisms and reagent selection principles of existing industrial solid waste harmless treatment, and all of them are selected from existing conventional mature processes.

[0101] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0102] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integrated operation system for gravity energy storage and solid waste treatment, characterized in that, include: The high-level storage yard and the low-level storage yard have a difference in altitude; A transport track connects the high-level storage yard and the low-level storage yard; The transport train can run along the transport track between the high-level storage yard and the low-level storage yard; Solid waste bulk materials can be loaded onto the transport train and stacked in the high-level stockpile and / or the low-level stockpile's stockpile area; Loading and unloading devices are installed in the high-level stockpile and the low-level stockpile for transferring the solid waste bulk material between the transport train and the stockpile area; A spraying device, installed in the high-level stockpile and / or the low-level stockpile, is used to spray the reaction liquid onto the solid waste blocks located in the stockpile area; The power generation device can generate electricity when the transport train carrying the solid waste block runs from the high-level stockpile to the low-level stockpile. The system operation includes: Feeding and briquetting: After pretreatment, solid waste is filled into a loading container with multiple through holes to form solid waste briquettes, and the solid waste briquettes are stacked in the high-level stockpile and / or the low-level stockpile's stockpile area to enter the system as an energy storage medium; Static reaction: During the period when the solid waste blocks are stacked in the stockpiling area, the reaction liquid is sprayed through the spraying device to cause chemical and / or biological reactions in the solid waste; Circular equalization: The transport train circulates the solid waste block between the high-level storage yard and the low-level storage yard. The solid waste block is ventilated through the circular transport process, and the position of the solid waste block is moved through the loading and unloading action of the loading and unloading device during the circular transport process. Regular monitoring: The solid waste in the loading container is regularly monitored for treatment status. If the solid waste treatment reaches the predetermined qualified treatment target, the solid waste can be removed from the system and new solid waste to be treated can be put into the feeding and briquetting process; otherwise, it continues to enter the static reaction and circulation homogenization until the test is qualified.

2. The integrated gravity energy storage and solid waste treatment system as described in claim 1, characterized in that, The cyclical transportation includes energy storage transportation mode and power generation transportation mode. When the system is in energy storage transportation mode, the transport train loads solid waste blocks from the stockpiling area of ​​the low-level stockpile, unloads and stacks them in the stockpiling area of ​​the high-level stockpile, and returns to the low-level stockpile empty. This cycle of transportation is repeated until the last round of energy storage transportation is set. When the system is in power generation and transportation mode, the transport train loads solid waste heavy blocks from the high-level stockpile area, and after the transport drive power generation device generates electricity, it travels to the low-level stockpile area to stack and unload the solid waste heavy blocks, and returns to the high-level stockpile empty. This cycle of transportation is repeated until the last round of power generation and transportation is set. Both the high-level and low-level stockpiles have designated stacking areas. During the cyclical transportation of solid waste bulk materials, loading, unloading, and stacking operations alternate between the two stacking areas. Within the stacking areas, the direction perpendicular to the loading and unloading tracks of the transport trains is defined as the column direction, including L1…L… m Columns, defined vertically as layer directions, are used in cyclic homogenization. When solid waste blocks are loaded from one of the stockpiling areas onto a transport train, multiple layers of solid waste blocks in the same column are loaded onto the train from top to bottom. When they are transported to another stockpiling area for unloading and stacking, at least two layers of solid waste blocks in the same column from the original stockpiling area are stacked in different columns.

3. The integrated gravity energy storage and solid waste treatment system as described in claim 2, characterized in that, When the loading and unloading device loads the solid waste blocks from the stockpiling area onto the transport train, it loads them one by one from top to bottom, starting from the closest column to the transport train, and then transports them to another stockpiling area for unloading and stacking.

4. The integrated gravity energy storage and solid waste treatment system as described in claim 2, characterized in that, During unloading and stacking, multiple layers in the same column of the original stockpile area are stacked in the same layer or multiple layers in different columns, and then stacked upwards by column.

5. The integrated gravity energy storage and solid waste treatment system as described in claim 3, characterized in that, When unloading and stacking, the stacking order for the same layer height is as follows: starting from the farthest column in the stacking area, lay the materials flat one column at a time from far to near.

6. The integrated gravity energy storage and solid waste treatment system as described in any one of claims 1-5, characterized in that, During the cyclic homogenization process, as the solid waste block is moved through the loading and unloading action of the loading and unloading device, the spraying device sprays the reaction liquid onto the solid waste block.

7. The integrated gravity energy storage and solid waste treatment system as described in claim 6, characterized in that, The spraying device sprays the solid waste blocks after each round of unloading and stacking by the loading and unloading device; or sprays the solid waste blocks once after the same layer is fully stacked; or sprays them intermittently multiple times during the process of stacking the solid waste blocks in the stacking area; or sprays the entire batch of stacked solid waste blocks in a concentrated manner after the loading and unloading device has stacked the solid waste blocks in the stacking area.

8. The integrated operation system for gravity energy storage and solid waste treatment as described in claim 1, characterized in that, The high-level storage yard and / or the low-level storage yard are equipped with collection tanks for collecting the reaction liquid sprayed by the spraying device or the leachate after the solid waste blocks undergo biological and / or chemical reactions. The system also includes a liquid collection and recovery system connected to the collection tank for collecting and centrally processing the reaction liquid and / or leachate.

9. The integrated gravity energy storage and solid waste treatment system as described in claim 8, characterized in that, At least a portion of the transport train is provided with a liquid collection structure for collecting leachate dripping from the solid waste bulk during transport and / or loading and unloading, and guiding the leachate to the collection tank.

10. The integrated gravity energy storage and solid waste treatment system according to claim 1, characterized in that, The solid waste includes at least one of red mud, steel slag, phosphogypsum, coal gangue, electrolytic manganese slag, iron tailings, and copper tailings. In the static reaction, the reaction liquid includes at least one of microbial agent, solidification reaction liquid, stabilization reaction liquid, neutralization and conditioning liquid, heavy metal chelation reaction liquid, and hydration curing liquid.

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