Solid waste treatment gravity energy storage yard

Abstract

This invention discloses a gravity energy storage yard for solid waste treatment, relating to the fields of solid waste resource utilization and gravity energy storage technology. The yard includes a stockpiling area, loading and unloading tracks, a transfer device, a spraying device, and a liquid collection device. The stockpiling area is used to stack energy storage blocks made from the solid waste to be treated. The loading and unloading tracks are located on one side of the stockpiling area for transport trains to stop. The transfer device enables the loading, unloading, and transfer of energy storage blocks between the stockpiling area and the transport trains. The spraying device sprays reaction liquid onto the energy storage blocks in the stockpiling area for biological and / or chemical treatment. The liquid collection device collects the sprayed waste liquid and the leachate generated from the reaction of the energy storage blocks. This invention uses solid waste energy storage blocks as a gravity energy storage medium, simultaneously realizing solid waste resource utilization and energy storage operations. Through spraying treatment and centralized collection of waste liquid, it effectively improves the solid waste treatment effect, avoids liquid leakage pollution, and combines environmental benefits, energy storage benefits, and industrial application value.

Description

Technical Field

[0001] This invention relates to the field of gravity energy storage technology, specifically a gravity energy storage yard for solid waste treatment. Background Technology

[0002] Existing large-scale solid waste storage requires the use of a large amount of land (such as tailings ponds and coal gangue mountains), destroys surface vegetation, and leads to soil erosion and desertification. Some solid waste (such as red mud) storage areas are highly alkaline and cannot be restored to vegetation in the long term, forming ecological dead zones. Industrial solid waste such as smelting slag, electroplating sludge, electronic waste, and chemical waste residue are often rich in heavy metals such as lead, cadmium, copper, nickel, gold, and silver, which pose a risk of heavy metals infiltrating and polluting the environment through soil and groundwater.

[0003] Currently, most solid waste treatment methods involve microbial solidification, chemical treatment, and carbonization for storage. These methods are carried out in fixed treatment plants or storage yards, requiring large land areas. The reaction efficiency is limited by static conditions such as turning and ventilation, resulting in long treatment cycles. Gravity energy storage requires the cyclical transport of heavy objects to achieve energy storage, and special materials such as concrete blocks and sand are usually used as heavy objects, resulting in a single function.

[0004] Solid waste treatment and gravity energy storage face two major challenges: First, the large-scale accumulation of bulk industrial solid waste (such as red mud, steel slag, and phosphogypsum) poses serious environmental risks and land resource occupation problems. Traditional treatment methods are often time-consuming, costly, and have low resource utilization efficiency. Second, with the increasing proportion of renewable energy, the power grid's demand for large-scale, long-term, and low-cost energy storage technologies is becoming increasingly urgent. Gravity energy storage, as a physical energy storage method, has attracted attention due to its high reliability, long lifespan, and environmental friendliness. However, its construction requires a large amount of "heavy material" as the energy storage medium, and cost is one of the factors to consider for its promotion. As a core component of gravity energy storage systems, storage yards are crucial locations for the storage and transfer of heavy blocks. However, existing designs focus solely on energy storage, neglecting the needs of solid waste treatment and failing to achieve synergy between solid waste resource utilization and energy storage. Therefore, designing an integrated structure adapted to solid waste energy storage heavy blocks, using gravity energy storage yards as the core carrier, to transform bulk industrial solid waste into the heavy materials required for gravity energy storage, while simultaneously providing a dynamic, efficient, and harmless treatment environment for solid waste, addressing the environmental and land-use issues of solid waste storage, reducing the cost of gravity energy storage systems, and achieving synergistic optimization of solid waste resource utilization and gravity energy storage, has become a pressing technical challenge. Summary of the Invention

[0005] In view of the above-mentioned shortcomings in the existing technology, the purpose of this invention is to provide a gravity energy storage yard for solid waste treatment.

[0006] The technical solution adopted by the present invention to achieve the above objectives is as follows: A gravity energy storage facility for solid waste treatment includes: The stockpiling area is used to stack energy storage blocks made from solid waste to be processed. The loading and unloading track is located on one side of the stockpiling area and is used to stop transport trains; Transfer device, used to load or unload energy storage blocks between the stockpile area and transport trains; Spraying device for spraying reaction liquids for biological and / or chemical treatment of energy storage blocks stacked in the stockpile area; A liquid collection device is used to collect the reaction liquid sprayed from the spraying device or the leachate after the energy storage heavy blocks undergo biological and / or chemical reactions.

[0007] Furthermore, the liquid collection device includes a path liquid collection area and a treatment liquid recovery channel. The path liquid collection area is connected to the treatment liquid recovery channel. The path liquid collection area includes a first liquid collection area located below the stockpile area, a second liquid collection area located between the first liquid collection area and the loading / unloading track, and a liquid collection tray located on the transport train. The first liquid collection area is connected to the second liquid collection area. When the transport train stops at the loading / unloading track, the vertical projection of the transfer device's running trajectory for loading or unloading operations between the stockpile area and the transport train falls within the range of the first liquid collection area, the second liquid collection area, and the liquid collection tray.

[0008] Furthermore, the liquid collection tray protrudes towards the second liquid collection area, and when the transport train stops at the loading and unloading track, from the vertical projection direction, the protruding part of the liquid collection tray overlaps with a part of the second liquid collection area.

[0009] Furthermore, the transport train is composed of multiple flexibly connected carriages, and at least some carriages are equipped with liquid collection trays. When the energy storage weight is loaded onto the transport train, it is placed above the liquid collection trays. There are gaps between the liquid collection trays on adjacent carriages. The transfer device removes the energy storage weight from the liquid collection tray or loads the energy storage weight onto the liquid collection tray. The movement trajectory of the transfer device is perpendicular to the loading and unloading track.

[0010] Furthermore, the second liquid collection area is sloped, with the side closer to the loading and unloading track being the high slope side and the side closer to the first liquid collection area being the low slope side. The first liquid collection area is provided with a flow guide channel, and the first liquid collection area is connected to the treatment liquid recovery channel through the flow guide channel.

[0011] Furthermore, the stacking area is provided with multiple stacking seats for stacking energy storage blocks, and each stacking seat is provided with at least one groove, which is connected to the flow channel.

[0012] Furthermore, the energy storage weight is made by pre-treating solid waste and filling it into a loading container with multiple through holes.

[0013] Furthermore, the spraying device includes a spraying mechanism and a reaction reagent supply tank. The spraying mechanism includes a support frame and a spraying pipe disposed on the support frame. The spraying pipe and the support frame are connected by any one of the following: fixed connection, lifting connection, or sliding connection.

[0014] Furthermore, the transfer device includes a support frame and at least one gripper that can move vertically and horizontally, disposed on the support frame. The gripper includes a lifting mechanism, a translation mechanism, and at least one gripping part connected to the lifting mechanism. The translation mechanism is disposed on the support frame, and the gripping part is connected to the translation mechanism through the lifting mechanism. The spray pipe is laid between the gripping part and the translation mechanism, and the gripper passes between the two spray pipes.

[0015] Furthermore, when the transfer device is in the loading or unloading operation state, the stopping height of the spray pipe is higher than the rising height required for the gripping part to grip the highest layer of energy storage heavy blocks; when the transfer device is in the standby state, the gripping part is stopped outside the stacking area, and the stopping height is lower than the stacking height of the energy storage heavy blocks, and the spray pipe can be a fixed spray reaction liquid or a lifting spray reaction liquid.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention integrates solid waste treatment functions with gravity energy storage block storage and transfer functions within the stockpile through the integrated design of the stockpile's stacking area, transfer device, spraying device, and liquid collection device. On the one hand, the stockpile directly serves as a storage and transfer site for energy storage blocks made from solid waste, replacing the traditional gravity energy storage stockpile's single function of only storing and transferring heavy materials, thus endowing the stockpile with the core capability of harmless and stable treatment of solid waste. On the other hand, the stockpile provides a standardized stacking environment for energy storage blocks, and together with the transfer device, enables efficient loading and unloading of blocks between the stacking area and transport trains, ensuring the heavy material circulation operation requirements of the gravity energy storage system. Compared to existing technologies where solid waste treatment requires the construction of a separate fixed storage yard and gravity energy storage yards only serve energy storage, this invention achieves the dual core functions of "dynamic solid waste treatment + large-scale storage and transportation of energy storage blocks" in a single storage yard. It eliminates the need for additional solid waste treatment storage yards, significantly reduces land resource occupation, and realizes the synergistic function of harmless solid waste treatment and gravity energy storage, greatly improving the comprehensive utilization efficiency of the storage yard.

[0017] This invention achieves full-process collection of spraying liquid and leachate through the design of a multi-level liquid collection device: the first liquid collection area below the stockpile area, the second liquid collection area on the slope between the track and the stockpile area, and the liquid collection tray on the transport train form a closed-loop collection system. Combined with the vertical projection overlap design and the linkage of the guide channel, it ensures that there is no waste liquid leakage or random flow during the entire process of energy storage block stacking, transfer, and spraying. At the same time, the collected waste liquid is transferred and recycled through the treatment liquid recovery channel or sent to the waste liquid treatment center for centralized treatment, thereby achieving recycling or compliant discharge. This completely solves the environmental risks such as soil pollution and groundwater pollution caused by leachate and spraying waste liquid during solid waste treatment, and significantly reduces the risk of secondary pollution, especially for solid waste containing heavy metals and strong alkalinity.

[0018] During the cycle of stacking in the stockpiling area and transferring by transport trains, the energy storage blocks are always in a dynamic state. Compared with the static stockpiling mode of traditional solid waste treatment, this significantly increases the uniformity of contact between solid waste and spray reaction liquid. With the lifting spray pipe structure, the spray pipe is raised to avoid obstacles when the transfer device is working, and lowered to get close to the stacking layer of energy storage blocks after the transfer is completed, achieving close-range, full-coverage spraying and enhancing the physical or chemical reaction effect. At the same time, the energy storage blocks are made of loading containers with through holes to ensure that the reaction liquid can penetrate into the interior of the solid waste, solving the problem of "incomplete surface treatment and difficulty in removing internal pollutants" in traditional solid waste treatment, greatly shortening the treatment cycle and meeting the needs of large-scale disposal of bulk solid waste.

[0019] The grabbing part of the transfer device travels between two spray pipes, realizing spatial coordination between loading / unloading and spraying treatment. There is no need to reserve an additional independent working area, saving the yard area. Through the height linkage control of the spray pipes and the grabbing part (the spray pipes are raised during transfer and the grabbing part is parked at a low position after operation), interference between the two is avoided and unobstructed spraying is ensured, thus improving the spraying coverage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a gravity energy storage yard structure for solid waste treatment according to the present invention; Figure 2 This is a structural schematic diagram of a gravity energy storage reactor for solid waste treatment according to the present invention from another perspective; Figure 3 This is a top view schematic diagram of a gravity energy storage reactor for solid waste treatment according to the present invention; Figure 4 This is a side view of the structure of a gravity energy storage yard for solid waste treatment according to the present invention. Figure 5 This is a schematic diagram of the structure of a gravity energy storage stack for solid waste treatment applied to a gravity energy storage transportation system according to the present invention; Figure 6This is a schematic diagram of the liquid collection area of ​​a gravity energy storage yard for solid waste treatment according to the present invention; Figure 7 This is a schematic diagram of the structure of a gravity energy storage yard spraying mechanism for solid waste treatment according to the present invention; Figure 8 This is a schematic diagram of the structure of a gravity energy storage yard transport train for solid waste treatment according to the present invention; Figure 9 This is a schematic diagram of the energy storage block structure of a gravity energy storage stack for solid waste treatment according to the present invention; In the diagram: 1. Stacking area; 11. Stacking seat; 112. Trench; 2. Loading / unloading track; 3. Transfer device; 31. Gripper; 32. Support frame; 311. Gripper part; 312. Lifting mechanism; 313. Translation mechanism; 313. Trolley platform; 3131. Track 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. Liquid collection device; 5. First liquid collection area; 51. Second liquid collection area; 52. Guide channel; 511. Energy storage weight; 6. Loading container; 61. Transport train; 7. Liquid collection tray; 71. Carriage; 72. Transport track; 8. High-level gravity energy storage yard A / Low-level gravity energy storage yard B. Detailed Implementation

[0021] 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.

[0022] Combination Figures 1-4 The gravity energy storage yard for solid waste treatment shown includes a stockpile area 1, a loading and unloading track 2, a transfer device 3, a spraying device 4, and a liquid collection device 5, with the specific structure as follows: The stockpile area 1 is the core storage space of the stockpile. Its layout, capacity and stacking strength need to be designed according to the potential energy storage requirements of gravity energy storage transportation. The stockpile area 1 is used to stack energy storage blocks 6 made from solid waste to be treated. The solid waste can be selected from at least one of red mud, steel slag, phosphogypsum, fly ash, coal gangue and electrolytic manganese slag. The energy storage blocks 6 are usually prepared by the following method: select one or more solid wastes to be treated, pre-treat them (the conventional pre-treatment steps include one or two of the following: crushing, grinding, dewatering, washing, magnetic separation, high-efficiency stabilization and activation, acid and alkali control, and mixing of leaching promoters, and then press them into granules or blocks with a binder), and then fill the pre-treated solid waste into a loading container 61 with multiple through holes to form standardized energy storage blocks 6.

[0023] Existing energy storage blocks are generally made from concrete or ore. Regardless of whether existing concrete, ore, or the industrial solid waste of this invention are used, pretreatment, demolding, and curing are required before stacking them in the gravity energy storage yard. The loading container is set up in this embodiment mainly 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 the 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 coordinating with the transfer device, thereby simplifying the entire preparation of the energy storage block.

[0024] like Figure 9 As shown, the loading container 61 is made of high-strength, corrosion-resistant material (such as steel or FRP). The container has a standardized cubic structure with through holes on all four sides and at the top and bottom. This ensures that the reaction liquid can penetrate into the solid waste during subsequent spraying treatment for deep treatment without affecting the overall load-bearing strength of the container. The solid waste energy storage block 6 formed after filling is directly stacked in the stockpile area 1 as the core energy storage medium in the gravity stockpile and energy storage transportation process. In practical applications, the preparation process can be adjusted according to the type of solid waste: for example, when red mud is selected as raw material, it is made into granules using an atmospheric pressure process before filling; when steel slag is selected as raw material, it is pressed into a block structure before filling to ensure that the density and structural strength of the energy storage block are suitable for the gravity energy storage requirements.

[0025] Loading and unloading track 2, located on one side of the stockpiling area 1, is used to stop transport train 7, providing a precise positional reference for the coordinated operation of transfer device 3 and transport train 7; such as Figure 5 As shown, the loading and unloading track 2 is seamlessly connected with the transport track 8 of the gravity energy storage transport system. Through the loading and unloading track 2 and the transport track 8, the high-level gravity energy storage yard A and the low-level gravity energy storage yard B, which are arranged according to the preset altitude difference, are precisely connected to form a closed loop. The transport train 7 loads the energy storage weight 6 and circulates the loading and unloading in the two yards along the loop to realize gravity energy storage transport and power generation transport.

[0026] The transfer device 3 is used to load or unload the energy storage block 6 between the stockpile area 1 and the transport train 7. The transfer device 3 is mainly used to realize the position change of the energy storage block 6. Its specific structure is not limited and can adopt existing hoisting devices, such as gantry cranes, crane-type hoisting devices, 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 energy storage block 6. The gripping part 311 can have various structural forms, such as claws, etc. The transfer device 3, including robotic arms, hooks, couplers, etc., can achieve the lifting and lowering of the energy storage weight 6 by moving its gripper 31 vertically and by moving at least partially horizontally between the loading / 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 / unloading track 2 and the stacking area 1 is set perpendicular to the loading / unloading track 2. In another embodiment, the gripper 31 moves back and forth between the loading / unloading track 2 and the stacking area 1 along a direction perpendicular to the loading / unloading track 2. This path planning and setting can reduce the movement time of the transfer device.

[0027] The transfer device 3 is equipped with a support frame 32 and at least one gripping member 31 mounted on the support frame 32, which can move vertically and horizontally. 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 mounted on the support frame 32, and the gripping part 311 is connected to the translation mechanism 313 via the lifting mechanism 312. The lifting mechanism 312 includes a power source, which can drive the gripping part 311 to move vertically via 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. Its lifting mechanism 312 is connected to the trolley platform 3131, and the traveling component drives the trolley platform 3131 to move back and forth on the track component 3133.

[0028] A spraying device 4 is used to spray the reaction liquid for biological and / or chemical treatment of the energy storage heavy blocks 6 stacked in the stockpiling area 1. The spraying device 4 includes a spraying mechanism and a reaction reagent supply tank 42. The reaction reagent supply tank 42 stores the reaction liquid for biological and / or chemical treatment of the energy storage heavy blocks 6 containing solid waste to be treated. It is connected to the spraying mechanism 41 to provide a stable spray reaction liquid 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 liquid. The number of reaction reagent supply tanks 42 is configured according to the type of reaction liquid required for the reaction treatment of the solid waste to be treated. Each tank is connected to the spraying mechanism 41 through a pipeline. In another embodiment, multiple solution chambers are arranged inside the reaction reagent supply tank 42 to classify the required reaction liquid into each solution chamber. Each solution chamber is connected to the spraying mechanism 41 through a pipeline.

[0029] The transfer device 3 unloads the energy storage block 6 from the transport train 7 and stacks it in the stockpiling area 1. The spraying device 4 sprays the reaction liquid into the stockpiling area 1. In one embodiment, the spraying device 4 sprays the energy storage block 6 transported in each round after the transport train 7 has completed the transport and stacked the energy storage block 6 in the stockpiling area. In another embodiment, the energy storage block 6 is sprayed once after the full stacking of the same layer is completed. In another embodiment, multiple intermittent sprayings are performed during the stacking of the energy storage block 6 in the stockpiling area 1. In yet another embodiment, the entire batch of stacked energy storage blocks 6 is sprayed centrally after the transfer device 3 stacks the energy storage block 6 in the stockpiling area 1. By performing the spraying operation during the unloading and stacking process, the spray liquid can penetrate evenly into the interior of the energy storage block 6 and the gaps between layers.

[0030] The structure of the spraying device in this application is not limited. Any form that can achieve uniform spraying of energy storage heavy 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.

[0031] In this embodiment, as Figure 7 The spraying mechanism 41 shown adopts a pipeline spraying structure, including a support frame 411 and multiple spraying pipes 412 arranged on the support frame 411. Two sets of support frames 411 are symmetrically arranged, and the multiple spraying pipes 412 are arranged on the two sets of support frames 411.

[0032] The spray pipe 412 can be made of stainless steel rigid pipe (high corrosion resistance) or high-strength acid and alkali resistant flexible hose. When a flexible hose is used, the 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 the reaction liquid onto the energy storage blocks 6. In one embodiment of the spray pipe arrangement, the spray pipe 412 is fixedly connected to the support frame 411 and is arranged above the stacked energy storage blocks 6. Multiple spray pipes are fixedly arranged above the stacking area of ​​the energy storage blocks 6. By arranging the number of spray pipes 412 or the position of the spray holes 4121, the spraying mechanism 41 can achieve full-area spraying of the energy storage blocks 6 in all stacking areas 1. In another embodiment of the spray pipe arrangement, the spray pipe... The spray pipe is slidably connected to the support frame, and is slidably connected to the area above the energy storage heavy block stacking area. Through the slidability of the spray pipe, the entire area of ​​the energy storage heavy blocks in the stacking area is sprayed. To make the reaction liquid spray more uniform, penetrate deeper into the energy storage heavy blocks, and reduce the spray splash space around the spray liquid, another embodiment of the spray pipe arrangement is provided. The spray pipe 412 is liftably connected to the support frame 411. Multiple spray pipes 412 are laid flat. In one embodiment, each spray pipe is liftably connected to the support frame via a lifting connector (the lifting connector can be a conventional lifting drive structure such as a screw lifting mechanism, cylinder lifting mechanism, or electric push rod lifting mechanism, not shown). To control installation costs and reduce the number of lifting connectors, in one embodiment, as shown... Figure 7 As shown, adjacent multiple spray pipes 412 or all spray pipes 412 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, and the gripping parts 311 are connected to the lifting mechanism and can move vertically, and its gripping parts 311 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 installation space, thus limiting the operating space of the spray pipes 412 to the gripping parts 311. Between the grabbing part 311 and the translation mechanism 313, the spray pipe 412 is laid between the grabbing part 311 and the translation mechanism 313. In order to achieve spatial coordination between loading or unloading and spraying treatment and avoid interference in installation and operation, the grabbing part 31 travels between the two spray pipes 412. In a preferred grabbing part operation mode, the grabbing 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 energy storage heavy block 6. The extension direction of its spray pipe 412 is perpendicular to the loading and unloading track 2.

[0033] In one embodiment, such as Figure 1As shown, the transfer 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 2. The transfer device 3 can realize the synchronous gripping of the energy storage weights 6 of multiple carriages 72 on the transport train 7. In order to avoid the installation interference between the transfer device 3 and the spraying device 4 in the operating area, the loading and unloading track 2 and the stacking area 1 are both set in the support frame 32 and the two support frames 411.

[0034] To achieve spatial coordination between loading / unloading and spraying treatment and avoid interference between the two operations, when the transfer device 3 is in loading or unloading operation, 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. When the transfer device 3 is in standby operation, 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. The spray pipe can be a fixed spray reaction liquid or a lifting spray reaction liquid. Through the height linkage control strategy between the spray pipe 412 and the gripping part 311, that is, the spray pipe avoids at a high position during the transfer operation and the gripping part stops at a low position after resetting to give way, 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. The spray pipe can be fixed to spray the reaction liquid, that is, the spray pipe is in a fixed position and the spraying work is completed without lifting or lowering; or it can be lifted to spray the reaction liquid, that is, the spray pipe can select the spraying height by rising or falling.

[0035] To further improve the spraying depth during the stacking of energy storage blocks while maintaining stacking efficiency in the stockpile, in one embodiment, the transfer device 3 unloads the energy storage blocks 6 from the transport train 7 and stacks them in the stockpile area 1, layer by layer. After completing the full stacking of the same layer, the gripping member 31 of the transfer device 3 moves horizontally downward to the outside of the stockpile area 1 to avoid obstruction, and the spray pipe 412 moves downward to perform a spraying operation on the layer of energy storage blocks 6. In this embodiment, as shown... Figure 4 As shown, within the stockpiling area 1, the stacked energy storage blocks 6 are defined as the column direction (X direction in the coordinate system) perpendicular to the loading and unloading track 2, including L1, L2...L... m Columns, defined vertically as the layer direction (Y-axis in the coordinate system), are stacked column by column in the embodiment, i.e., L1, L2...L... of the same layer. mEach column in the stack is stacked sequentially to form a complete layer (i.e., full stacking of the same layer). Through this operation control, close-range, full-coverage spraying of each layer of energy storage blocks can be achieved, while improving the uniformity and penetration depth of wetting without occupying the time of independent processes. This avoids the problems of surface liquid accumulation and insufficient internal wetting caused by concentrated spraying after stacking multiple layers, while not interrupting the stacking cycle, thus balancing the spraying effect and the overall yard turnover efficiency.

[0036] like Figure 6 As shown, the liquid collection device 5 is used to collect the reaction liquid sprayed from the spraying device 4 or the leachate after the energy storage heavy block 6 undergoes biological and / or chemical reactions. The liquid collection device 5 includes a path liquid collection area and a treatment liquid recovery channel. The path liquid collection area is connected to the treatment liquid recovery channel, thereby realizing the orderly diversion and centralized recovery of waste liquid and avoiding the reaction liquid from flowing and leaking everywhere and polluting the storage yard environment.

[0037] The path leachate collection area includes a first leachate collection area 51 located below the stockpiling area 1, a second leachate collection area 52 located between the first leachate collection area 51 and the loading / unloading track 2, and a leachate collection tray 71 located on the transport train 7. The first leachate collection area 51 and the second leachate collection area 52 are connected. The first leachate collection area 51 and the second leachate collection area 52 are arranged in a concave trough shape as the main leachate collection structure below the stockpiling area. The first leachate collection area 51 fully covers the energy storage heavy block stacking area and the spraying range of the spraying device 4, which can ensure that all the spraying waste liquid and heavy block leachate of each layer fall into the trough, achieving collection without dead corners. The second leachate collection area 52 is used to collect path leachate from the stockpiling area 1 to the loading / unloading track 2. The leachate collection tray 71 is used to collect energy storage heavy block leachate during the operation of the transport train 7.

[0038] The interior and sidewalls of the first liquid collection zone 51 and the second liquid collection zone 52 are completely covered with an impermeable layer (such as high-density polyethylene impermeable membrane, anti-corrosion concrete lining, etc.) to effectively prevent liquid from leaking into the storage yard foundation and ensure the safety of the underground environment.

[0039] To achieve full-path collection of spray liquid and leachate during the operation of the stockpile, when the transport train stops at the loading and unloading track, the vertical projection of the running trajectory of the transfer device 3 during loading or unloading operations between the stockpile area 1 and the transport train 7 falls within the range of the first collection area 51, the second collection area 52, and the collection tray 71. This ensures that the dripping and splashing liquids during the operation are all collected by the corresponding collection structures, preventing the liquids from escaping to non-collection areas of the stockpile.

[0040] The transport train 7 consists of multiple flexibly connected carriages 72. At least some of the carriages 72 are equipped with liquid collection trays 71. When the energy storage weight 6 is loaded onto the transport train 7, it is placed on the liquid collection trays 71. There is a gap between the liquid collection trays 71 on adjacent carriages 72. The transfer device 3 removes the energy storage weight 6 from the liquid collection tray 71 or loads the energy storage weight 6 onto the liquid collection tray 71. The direction of movement of the transfer device 3 is perpendicular to the loading and unloading track 2. Because a certain distance needs to be maintained between adjacent carriages 72 for smooth transportation on the curved track, the space in the collection tray 71 is limited and a certain gap needs to be maintained. Since the energy storage block, as the energy storage medium, has weight requirements and is relatively large, to ensure that the transfer device 3 can precisely connect and cover the energy storage block 6 from the collection tray 71 of the transport train 7 to the second collection area 52, or from the second collection area 52 to the collection tray 71 of the transport train 7, the movement path of the energy storage block 6 being moved from or loaded onto the collection tray 71 is perpendicular to the loading and unloading track 2. The position of the transferred energy storage block 6 is aligned with the position of the collection tray 71 of the transport train 7 along the extension direction of the loading and unloading track 2. In this matching configuration, when the energy storage block 6 is taken out from or loaded onto the liquid collection tray 71, the transfer device 3 can directly reciprocate the energy storage block 6 along a direction perpendicular to the loading and unloading track 2, transferring it from the liquid collection tray 71 to the second liquid collection area 52 or vice versa. This linear reciprocating transfer method ensures that the energy storage block 6 moves along a regular path in the loading and unloading section, adapting to the precise alignment of narrow movement trajectories. It also ensures that any dripping or splashing reaction liquid and leachate during the transfer process are always controlled to fall into the liquid collection tray 71 or the second liquid collection area 52, ensuring no dripping or spillage throughout the entire process. At the same time, the linear reciprocating transfer simplifies the movement trajectory and improves alignment accuracy and loading and unloading efficiency.

[0041] Between the loading / unloading track 2 and the second collection area 52, the second collection area 52 cannot be arranged infinitely close to the loading / unloading track 2. If it is too close, it will interfere with the stopping position of the transport train 7. 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, in the design of the collection tray, the collection tray 71 protrudes towards the second collection area 52. When the transport train 7 stops at the loading / unloading track 2, from the vertical projection direction, the protruding part of the collection tray 71 overlaps with part of the second 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 collection area 52 and the loading / unloading 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 collection tray and smoothly introduced into the second collection area, realizing the whole path collection without spillage or leakage.

[0042] To better guide the liquid from the second collection zone 52 to the first collection zone 51, the second collection zone 52 is sloped, with the side closer to the loading and unloading 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 equipped with a guide channel 511, and the first collection zone 51 is connected to the treatment liquid recovery channel through the guide channel 511. The treatment liquid recovery channel has a waste liquid treatment system, which centrally treats the collected waste liquid, enabling recycling or discharge in compliance with standards.

[0043] After the leachate is collected in the collection tray 71, it can be guided to the second collection area 52. In one embodiment, each collection tray 71 is connected to a liquid guide pipe that can be opened and closed. In another embodiment, multiple collection trays 71 are connected by a flexible pipe, and one of the collection trays 71 is connected to a liquid guide pipe that can be opened and closed.

[0044] In this embodiment, the design of a multi-level liquid collection device enables the collection of spray liquid and leachate throughout the entire process: the first liquid collection area 51 below the stockpiling area 1, the second liquid collection area 52 on the slope between the loading and unloading track 2 and the stockpiling 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 the linkage of the flow guiding channel, it ensures that there is no waste liquid leakage or random flow during the entire process of energy storage block stacking, transfer, and spraying.

[0045] Because the energy storage blocks are stacked in multiple layers in the stockpile area, which is not conducive to the outflow of leachate, multiple stacking seats 11 for stacking energy storage 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 energy storage 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, improving the liquid guiding efficiency and collection sufficiency, while reducing the spread and retention of liquid in the stacking area, and reducing the risk of waterlogging. To minimize erosion of the stacking bases and energy storage blocks, ensure structural stability and a clean working environment in the stockpiling area, and further achieve efficient centralized recycling of waste liquid, a preferred embodiment is provided with an independent stacking base 11 below each row of energy storage blocks 6. Gaps exist between stacking bases 11 to form flow guide branches. A three-level layered flow guide system is formed by the trench 112 leading to the flow guide branches and then to the flow guide channel 511. The trench 112 focuses on the rapid discharge of locally accumulated liquid at the bottom of the energy storage blocks 6, the flow guide branches receive the dispersed liquid from adjacent stacking bases 11 and achieve regional convergence, and the flow guide channel 511 completes the centralized collection of waste liquid throughout the area. The three-layer structure is progressive and completely solves the problem of obstructed liquid flow caused by multi-layer stacking.

[0046] 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.

[0047] 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. A gravity energy storage yard for solid waste treatment, characterized in that, include: The stockpiling area is used to stack energy storage blocks made from solid waste to be processed. The loading and unloading track is located on one side of the stockpiling area and is used to stop transport trains; Transfer device, used to load or unload energy storage blocks between the stockpile area and transport trains; Spraying device for spraying reaction liquids for biological and / or chemical treatment of energy storage blocks stacked in the stockpile area; A liquid collection device is used to collect the reaction liquid sprayed from the spraying device or the leachate from the energy storage heavy blocks after biological and / or chemical reactions. The liquid collection device includes a path liquid collection area and a treatment liquid recovery channel. The path liquid collection area is connected to the treatment liquid recovery channel. The path liquid collection area includes a first liquid collection area located below the stockpile area, a second liquid collection area located between the first liquid collection area and the loading / unloading track, and a liquid collection tray located on the transport train. The first liquid collection area is connected to the second liquid collection area. When the transport train stops at the loading / unloading track, the vertical projection of the transfer device's running trajectory for loading or unloading operations between the stockpile area and the transport train falls within the range of the first liquid collection area, the second liquid collection area, and the liquid collection tray.

2. The gravity energy storage yard for solid waste treatment as described in claim 1, characterized in that, The transport train consists of multiple flexibly connected carriages, with at least some carriages equipped with liquid collection trays. When the energy storage weight is loaded onto the transport train, it is placed above the liquid collection trays. There are gaps between the liquid collection trays on adjacent carriages. The transfer device removes the energy storage weight from the liquid collection tray or loads the energy storage weight onto the liquid collection tray. The movement trajectory of the transfer device is perpendicular to the loading and unloading track.

3. A gravity energy storage yard for solid waste treatment as described in claim 2, characterized in that, The liquid collection tray protrudes towards the second liquid collection area, and when the transport train stops at the loading and unloading track, from the vertical projection direction, the protruding part of the liquid collection tray overlaps with a part of the second liquid collection area.

4. A gravity energy storage yard for solid waste treatment as described in claim 2, characterized in that, The second liquid collection area is sloped, with the side closer to the loading and unloading track being the high slope side and the side closer to the first liquid collection area being the low slope side. The first liquid collection area is provided with a flow guide channel, and the first liquid collection area is connected to the treatment liquid recovery channel through the flow guide channel.

5. A gravity energy storage yard for solid waste treatment as described in claim 4, characterized in that, The stacking area is provided with multiple stacking seats for stacking energy storage blocks. Each stacking seat has at least one groove, which is connected to the flow channel.

6. A gravity energy storage yard for solid waste treatment as described in claim 1, characterized in that, The energy storage weight is made by pre-treating solid waste and filling it into a loading container with multiple through holes.

7. A gravity energy storage yard for solid waste treatment as described in any one of claims 1-6, characterized in that, The spraying device includes a spraying mechanism and a reaction reagent supply tank. The spraying mechanism includes a support frame and a spraying pipe disposed on the support frame. The spraying pipe and the support frame are connected by any one of the following: fixed connection, lifting connection, or sliding connection.

8. A gravity energy storage yard for solid waste treatment as described in claim 7, characterized in that, The transfer device includes a support frame and at least one gripper that can move vertically and horizontally, disposed on the support frame. The gripper includes a lifting mechanism, a translation mechanism, and at least one gripping part connected to the lifting mechanism. The translation mechanism is disposed on the support frame, and the gripping part is connected to the translation mechanism through the lifting mechanism. The spray pipe is laid between the gripping part and the translation mechanism, and the gripper passes between the two spray pipes.

9. A gravity energy storage yard for solid waste treatment as described in claim 8, characterized in that, When the transfer device is in loading or unloading operation, the stopping height of the spray pipe is higher than the lifting height required for the gripping part to grip the highest layer of energy storage weight; when the transfer device is in standby operation, the gripping part is stopped outside the stacking area and the stopping height is lower than the stacking height of the energy storage weight, and the spray pipe can be used for fixed spraying of reaction liquid or lifting spraying of reaction liquid.

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