Superimposed compressed solid waste mass block for gravity energy storage and preparation method of superimposed compressed solid waste mass block

Abstract

The invention discloses a superimposed compressed solid waste mass block for gravity energy storage and a preparation method thereof. The superimposed compressed solid waste mass block comprises a bearing bottom plate, a counterweight compressed muck block and a recycled aggregate concrete shell, a recycled aggregate concrete shell with the upper surface and the lower surface being open is vertically arranged on the upper surface of the bearing bottom plate which is horizontally and transversely arranged in an aligned mode, and a plurality of balance weight compressed muck blocks matched with the recycled aggregate concrete shell are sequentially arranged in the recycled aggregate concrete shell from top to bottom in an overlapped mode. The lowermost counterweight compressed muck block and the bearing bottom plate as well as the adjacent counterweight compressed muck blocks are overlapped through tongue-and-groove design, and the upper surface of the uppermost counterweight compressed muck block and the upper surface of the recycled aggregate concrete shell are horizontally arranged in a coplanar manner. According to the invention, a plurality of small-tonnage counterweight compressed muck blocks are combined into a whole by adopting an in-situ multi-time overlapping compression mode and utilizing a tongue-and-groove design, so that the performance requirement on the compressor is reduced, and the manufacturing cost and difficulty are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of large-scale counterweight block preparation, and in particular to a laminated compressed solid waste mass block for gravity energy storage and a preparation method thereof. Background Art

[0002] In recent years, the global energy situation has become complex and changeable. Among them, fossil fuel consumption and the carbon emissions it brings have repeatedly hit new highs, while the rise of clean energy has brought new hope for energy transformation. Natural clean energy such as wind power and solar energy are intermittent and unpredictable, and their power generation varies with weather, climate or season; this highlights the importance of energy storage systems in balancing supply and demand and ensuring grid stability. As a new type of energy storage technology, gravity energy storage has the advantages of being environmentally friendly, flexible in layout, highly safe, and having a long lifespan. In addition, the energy storage cost is relatively low, which can effectively solve the intermittent problem of clean energy generation and become an indispensable part of the future energy system.

[0003] The energy storage media used in gravity energy storage can be mainly divided into two categories: water and solid matter. Water media stores and releases energy through the flow of water from top to bottom. Its main application scenario is hydropower generation. It has low energy density, requires a large site area, and is more dependent on the natural environment. Solid media can generally be made of metals, cement, stone sand and other materials. Compared with water media, its energy density is higher, and after adopting self-built tower gravity energy storage, its dependence on land area and natural environment can be further reduced. In addition, the use of processed solid waste materials as energy storage media can further improve the environmental protection and economy of gravity energy storage, broaden the application scope of gravity energy storage, and inject new vitality into the green transformation and sustainable development of energy.

[0004] Construction slag is a common engineering solid waste, and its density after compression is generally 1.5~2.5t / m 3 , which meets the density requirements of solid energy storage media for gravity energy storage. However, if large-tonnage and large-volume energy storage slag blocks are directly manufactured through compression equipment, this will place extremely high demands on compression equipment and technology. Therefore, how to widely use engineering slag to prepare large-scale gravity energy storage counterweight blocks without increasing the difficulty has become a problem that needs to be solved urgently. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a stacked compressed solid waste mass block for gravity energy storage and a preparation method thereof. An in-situ multiple stacking and compression method is adopted, and multiple batches of small-tonnage counterweight slag blocks are compressed on a load-bearing bottom plate by a low-power compressor, and then multiple small-tonnage counterweight compressed slag blocks are combined into a whole by a tongue-and-groove design, thereby solving the problem of ultra-high performance requirements of the compressor for one-time molding of the mass block for gravity energy storage due to its large size and excessive pressure on the template side, reducing the performance requirements on the compressor, and reducing the manufacturing cost and difficulty.

[0006] In order to solve the above technical problems, the present invention adopts the following technical scheme: the invention is a composite compressed solid waste mass block for gravity energy storage, the innovation of which is that it includes a load-bearing base plate, a counterweight compressed slag block and a recycled aggregate concrete shell; the load-bearing base plate is a horizontally arranged rectangular parallelepiped structure, and it is a transmission force-bearing member, and its upper surface is also vertically embedded with rectangular grooves I symmetrically opened at intervals on the left and right along the horizontal direction; a vertically and horizontally arranged recycled aggregate concrete shell is also vertically aligned on the upper surface of the load-bearing base plate, and the upper and lower surfaces of the recycled aggregate concrete shell are both open; The interior of the raw aggregate concrete shell is also provided with several weighted compressed soil blocks that match it, which are stacked in sequence from top to bottom. Each of the weighted compressed soil blocks is a rectangular structure arranged horizontally and transversely, and the bottommost weighted compressed soil block and the load-bearing bottom plate, as well as the adjacent weighted compressed soil blocks, are overlapped by a tongue-and-groove design, and ensure that the upper surface of the topmost weighted compressed soil block is horizontally coplanar with the upper surface of the recycled aggregate concrete shell, so that all the weighted compressed soil blocks are covered by the recycled aggregate concrete shell to form a whole.

[0007] Preferably, the outer side surfaces of the recycled aggregate concrete shell are aligned with the outer side surfaces of the load-bearing bottom plate, and the wall thickness of the recycled aggregate concrete shell is 50-100 mm, and it is ensured that each of the rectangular grooves I is located within the internal covering area of ​​the recycled aggregate concrete shell.

[0008] Preferably, a boss matching the rectangular groove I is provided on the lower surface of each of the counterweight compressed soil blocks relative to the two rectangular grooves I, and each of the bosses is integrally formed with the corresponding counterweight compressed soil block, and through the snap-fit ​​cooperation between the boss and the corresponding rectangular groove I, the bottommost counterweight compressed soil block is snap-fitted and overlapped with the load-bearing base plate, and it is necessary to ensure that the bottom surface of the bottommost counterweight compressed soil block is tightly fitted with the upper surface of the load-bearing base plate.

[0009] Preferably, a rectangular groove II matching the boss is vertically embedded in the upper surface of each of the counterweight compressed soil blocks relative to the corresponding two bosses, and the adjacent counterweight compressed soil blocks are clamped and overlapped together through the snap-fitting of the boss and the corresponding rectangular groove II, and ensure that the lower surface of each upper counterweight compressed soil block is tightly fitted with the upper surface of the corresponding lower counterweight compressed soil block.

[0010] Preferably, the two rectangular grooves II of the topmost counterweight compressed soil block are used as weight adjustment holes, and the weight of the superimposed compressed solid waste mass block is supplemented by filling the soil.

[0011] Preferably, the load-bearing base plate is cast using C40 reinforced concrete.

[0012] Preferably, the recycled aggregate concrete shell is made of recycled fine stone aggregate concrete, and the particle size of the recycled fine stone aggregate is 5-10 mm.

[0013] Preferably, the formula of each of the weighted compressed slag blocks is as follows: 60~80 pieces of construction waste 2~10 parts lime 2~10 parts cement 15~25 parts of water.

[0014] The invention discloses a method for preparing a laminated compressed solid waste mass block for gravity energy storage, the innovation of which is that it comprises the following steps: Step 1: Support the formwork according to the shape of the load-bearing bottom plate and the position of the rectangular groove I inside it, and ensure that the two rectangular grooves I are 100mm away from the edge of the load-bearing bottom plate; then after tying the bottom plate reinforcement, use C40 concrete to pour, then cover and cure for 7 days, and then remove the formwork to obtain the load-bearing bottom plate; Step 2: crush the construction waste soil in advance, weigh the construction waste soil, lime, cement and water in order according to the set ratio, add them into the mixing equipment in turn and mix them evenly to obtain the construction waste soil mixture; Step 3: Install the compression steel mold with the load-bearing bottom plate as the bottom mold and the length and width shrinking by 50~100mm, then pour in the engineering slag mixture with a height of 1m, use the compressor and the pressing plate with a convex shape to compress the engineering slag mixture, and after it is formed, a single weighted compressed slag block with a boss and a rectangular groove II is formed; then repeat the above operation until several weighted compressed slag blocks are compressed and overlapped to the designed height, and then remove the compression steel mold; Step 4: Tie steel bars around the stacked weighted compressed soil blocks, and support the concrete pouring formwork along the circumference of the load-bearing bottom plate; Step 5: Use recycled fine stone aggregate concrete to cast the shell along the gap between the weighted compressed soil block and the concrete casting template, then cover and cure for 7 days, and then remove the mold to form a recycled aggregate concrete shell that covers the weighted compressed soil block, thereby obtaining a finished mass block; Step six: hoist the finished mass blocks onto the scale for weighing, and then use the two rectangular grooves Ⅱ of the topmost counterweight compressed slag block as weight adjustment holes, fill the engineering slag through the weight adjustment holes according to the set weight to add weight and perform maintenance again, thereby obtaining the laminated compressed solid waste mass blocks.

[0015] Beneficial effects of the present invention: (1) The present invention adopts an in-situ multiple stacking compression method, compresses multiple batches of small-tonnage counterweight slag blocks on the load-bearing bottom plate through a low-power compressor, and then combines multiple small-tonnage counterweight compressed slag blocks into a whole through a tongue-and-groove design, thereby solving the problem of ultra-high performance requirements of the compressor and excessive pressure on the template side due to the large size of the mass block for gravity energy storage in one-time molding, reducing the performance requirements for the compressor and reducing the manufacturing cost and difficulty; (2) The present invention greatly reduces the construction cost of the mass block by using construction waste and recycled fine aggregate, avoids the waste of natural resources, effectively reduces the carbon dioxide emissions in the construction of gravity energy storage projects, and realizes the full application of solid waste materials in the non-main force-bearing areas of the mass block; (3) The present invention adopts a composite structure of recycled fine aggregate concrete and compressed slag, which effectively ensures the safety of the combination of small-tonnage counterweight compressed slag blocks, improves the surface texture and durability of the mass block, and extends the service life of the mass block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 The present invention is a flow chart for preparing a laminated compressed solid waste mass block for gravity energy storage.

[0018] Figure 2 It is a schematic structural diagram of a laminated compressed solid waste mass block for gravity energy storage according to the present invention.

[0019] Figure 3 It is a schematic diagram of the superposition of the counterweight compressed soil block and the load-bearing bottom plate of the present invention.

[0020] Figure 4 for Figure 2Schematic diagram of the structure of the middle load-bearing base plate.

[0021] Figure 5 for Figure 2 Schematic diagram of the structure of a medium single-layer counterweight compressed soil block.

[0022] Among them, 1- load-bearing bottom plate; 2- recycled aggregate concrete shell; 3- counterweight compressed soil block; 4- rectangular groove I; 5- boss; 6- rectangular groove II. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below through specific implementation methods.

[0024] The present invention provides a composite compressed solid waste mass block for gravity energy storage, comprising a load-bearing base plate 1, a counterweight compressed soil block 3 and a recycled aggregate concrete shell 2; the specific structure is as follows Figures 1 to 5 As shown, the load-bearing base plate 1 is a horizontally arranged rectangular parallelepiped structure, and is a transmission force-bearing member, and rectangular grooves Ⅰ4 are vertically embedded and symmetrically opened at intervals on the left and right sides of its upper surface along the horizontal direction; wherein, the load-bearing base plate 1 is cast with C40 reinforced concrete.

[0025] like Figures 2~5 As shown, a vertically and horizontally arranged recycled aggregate concrete shell 2 is also vertically aligned on the upper surface of the load-bearing bottom plate 1, and the upper and lower surfaces of the recycled aggregate concrete shell 2 are both open; the outer sides of the recycled aggregate concrete shell 2 are respectively aligned with the outer sides of the load-bearing bottom plate 1, and the wall thickness of the recycled aggregate concrete shell 2 is 50-100mm, and it is ensured that each rectangular groove Ⅰ4 is located in the internal coverage area of ​​the recycled aggregate concrete shell 2. Among them, the recycled aggregate concrete shell 2 is made of recycled fine stone aggregate concrete, and the particle size of the recycled fine stone aggregate is 5-10mm.

[0026] In the present invention, a plurality of weighted compressed soil blocks 3 matching with the recycled aggregate concrete shell 2 are stacked in sequence from top to bottom. Figures 2~5 As shown, each counterweight compressed soil block 3 is a rectangular structure arranged horizontally, and the bottom counterweight compressed soil block 3 and the load-bearing base plate 1, as well as the adjacent counterweight compressed soil blocks 3 are overlapped by a tongue-and-groove design, and ensure that the upper surface of the top counterweight compressed soil block 3 is arranged horizontally and coplanar with the upper surface of the recycled aggregate concrete shell 2, and then all the counterweight compressed soil blocks 3 are covered by the recycled aggregate concrete shell 2 to form a whole.

[0027] like Figures 2~5As shown, on the lower surface of each counterweight compressed soil block 3, relative to the position of the two rectangular grooves Ⅰ4, bosses 5 matching the rectangular grooves Ⅰ4 are respectively provided, and each boss 5 is integrally formed with the corresponding counterweight compressed soil block 3, and through the snap-fit ​​cooperation between the boss 5 and the corresponding rectangular groove Ⅰ4, the bottommost counterweight compressed soil block 3 is snap-fitted and overlapped with the load-bearing base plate 1, and it is necessary to ensure that the bottom surface of the bottommost counterweight compressed soil block 3 is tightly fitted with the upper surface of the load-bearing base plate 1.

[0028] like Figures 2~5 As shown, a rectangular groove Ⅱ 6 matching the boss 5 is vertically embedded in the upper surface of each counterweight compressed soil block 3 relative to the corresponding two bosses 5, and the adjacent counterweight compressed soil blocks 3 are clamped and overlapped together through the snap-fitting of the boss 5 and the corresponding rectangular groove Ⅱ 6, and it is ensured that the lower surface of each upper counterweight compressed soil block 3 is tightly fitted with the upper surface of the corresponding lower counterweight compressed soil block 3.

[0029] The present invention uses the two rectangular grooves II 6 of the topmost counterweight compressed soil block 3 as weight adjustment holes, and fills the soil to supplement the weight of the superimposed compressed solid waste mass block.

[0030] The weighted compressed soil block 3 has the following components in parts by weight: 60~80 pieces of construction waste 2~10 parts lime 2~10 parts cement 15~25 parts of water.

[0031] A method for preparing a laminated compressed solid waste mass block for gravity energy storage according to the present invention, such as Figures 1 to 5 As shown, the following steps are included: Step 1: Support the formwork according to the shape of the load-bearing base plate 1 and the position of the rectangular groove Ⅰ4 inside it, and ensure that the two rectangular grooves Ⅰ4 are 100 mm away from the edge of the load-bearing base plate 1; then after tying the base plate reinforcement, use C40 concrete to pour, then cover and cure for 7 days, and then remove the formwork to obtain the load-bearing base plate 1.

[0032] Step 2: Crush the construction waste in advance, and then weigh the construction waste, lime, cement and water in order according to the set ratio, and add them into the mixing equipment in turn and mix them evenly to obtain the construction waste mixture.

[0033] Step 3: Install the compression steel mold with the load-bearing bottom plate 1 as the bottom mold and the length and width retracted by 50~100mm as the principle, then pour in a 1m high engineering slag mixture, use a compressor and a pressing plate with a convex shape to compress the engineering slag mixture, and after it is formed, a single counterweight compressed slag block 3 with a boss 5 and a rectangular groove Ⅱ6 is formed; then repeat the above operation until several counterweight compressed slag blocks 3 are compressed and overlapped to the designed height, and then remove the compression steel mold.

[0034] Step 4: Tie steel bars around the stacked counterweight compressed soil blocks 3 and support the concrete pouring formwork along the circumference of the load-bearing bottom plate 1.

[0035] Step 5: Use recycled fine stone aggregate concrete to cast the shell along the gap between the counterweight compressed soil block 3 and the concrete casting template, then cover and cure for 7 days, and then remove the mold to form a recycled aggregate concrete shell 2 that covers the counterweight compressed soil block 3, thereby obtaining a finished mass block.

[0036] Step six: hoist the finished mass block to the scale for weighing, and then use the two rectangular grooves Ⅱ6 of the topmost counterweight compressed slag block 3 as weight adjustment holes, fill the engineering slag through the weight adjustment holes according to the set weight to supplement the weight and perform maintenance again, so as to obtain the laminated compressed solid waste mass block. Embodiment 1

[0037] A method for preparing a laminated compressed solid waste mass block for gravity energy storage of the present invention comprises the following steps: Step 1: Use a rectangle with a length, width and height of 3500×1236×200mm and the position of the rectangular groove Ⅰ4 inside it to support the formwork, and ensure that the length, width and depth of the two rectangular grooves Ⅰ4 are 1600×1036×100mm, and they are 100mm away from the edge of the load-bearing bottom plate 1; then after tying the bottom plate steel bars, use C40 concrete to pour, then cover and cure for 7 days, and then remove the formwork to obtain the load-bearing bottom plate 1.

[0038] Step 2: Crush the construction waste soil in advance, then weigh 78 parts of construction waste soil, 2 parts of lime, 2 parts of cement and 18 parts of water in sequence, add them into a mixing device in sequence and mix them evenly to obtain a construction waste soil mixture.

[0039] Step 3: Install the compression steel mold with the load-bearing bottom plate 1 as the bottom mold and the length and width retracted by 50mm as the principle, then pour in a 1m high engineering slag mixture, use a compressor and a pressing plate with a convex shape to compress the engineering slag mixture, and after it is formed, a single counterweight compressed slag block 3 with a boss 5 and a rectangular groove Ⅱ 6 is formed; then repeat the above operation until several counterweight compressed slag blocks 3 are compressed and overlapped to a height of 2000mm, and then remove the compression steel mold.

[0040] Step 4: Tie steel bars around the weighted compressed soil block 3 with a length, width and height of 3400×1136×2000mm after stacking, and support the concrete pouring formwork along the circumference of the load-bearing bottom plate 1.

[0041] Step 5: Use recycled fine stone aggregate concrete to cast the shell along the gap between the counterweight compressed soil block 3 and the concrete casting template, then cover and cure for 7 days, and then remove the mold to form a recycled aggregate concrete shell 2 that covers the counterweight compressed soil block 3, thereby obtaining a finished mass block.

[0042] Step six: hoist the finished mass block onto the scale and weigh it to be 19.94t. Then use the two rectangular grooves Ⅱ6 of the topmost counterweight compressed slag block 3 as weight adjustment holes. Fill the engineering slag through the weight adjustment holes according to the set weight to add 0.06t of weight. After curing, a laminated compressed solid waste mass block with a length, width and height of 3500×1236×2200mm and a mass of 20t is obtained. Embodiment 2

[0043] A method for preparing a laminated compressed solid waste mass block for gravity energy storage of the present invention comprises the following steps: Step 1: Use a rectangle with a length, width and height of 3500×1236×200mm and the position of the rectangular groove Ⅰ4 inside it to support the formwork, and ensure that the length, width and depth of the two rectangular grooves Ⅰ4 are 1600×1036×100mm, and they are 100mm away from the edge of the load-bearing bottom plate 1; then after tying the bottom plate steel bars, use C40 concrete to pour, then cover and cure for 7 days, and then remove the formwork to obtain the load-bearing bottom plate 1.

[0044] Step 2: Crush the construction waste soil in advance, then weigh 68 parts of construction waste soil, 5 parts of lime, 5 parts of cement and 22 parts of water in sequence, add them into a mixing device in sequence and mix them evenly to obtain a construction waste soil mixture.

[0045] Step 3: Install the compression steel mold with the load-bearing bottom plate 1 as the bottom mold and the length and width retracted by 50mm as the principle, then pour in a 1m high engineering slag mixture, use a compressor and a pressing plate with a convex shape to compress the engineering slag mixture, and after it is formed, a single counterweight compressed slag block 3 with a boss 5 and a rectangular groove Ⅱ 6 is formed; then repeat the above operation until several counterweight compressed slag blocks 3 are compressed and overlapped to a height of 2500mm, and then remove the compression steel mold.

[0046] Step 4: Tie steel bars around the weighted compressed soil block 3 with a length, width and height of 3400×1136×2500mm after stacking, and support the concrete pouring formwork along the circumference of the load-bearing bottom plate 1.

[0047] Step 5: Use recycled fine stone aggregate concrete to cast the shell along the gap between the counterweight compressed soil block 3 and the concrete casting template, then cover and cure for 7 days, and then remove the mold to form a recycled aggregate concrete shell 2 that covers the counterweight compressed soil block 3, thereby obtaining a finished mass block.

[0048] Step six: hoist the finished mass block onto the scale and weigh it to 24.85t, then use the two rectangular grooves Ⅱ6 of the topmost counterweight compressed slag block 3 as weight adjustment holes, fill the engineering slag through the weight adjustment holes according to the set weight to add 0.15t of weight, and then after curing, obtain a laminated compressed solid waste mass block with a length, width and height of 3500×1236×2700mm and a mass of 25t. Embodiment 3

[0049] A method for preparing a laminated compressed solid waste mass block for gravity energy storage of the present invention comprises the following steps: Step 1: Use a rectangle with a length, width and height of 3500×1500×200mm and the position of the rectangular groove Ⅰ4 inside it to support the formwork, and ensure that the length, width and depth of the two rectangular grooves Ⅰ4 are 1600×1300×100mm, and they are 100mm away from the edge of the load-bearing bottom plate 1; then after tying the bottom plate steel bars, use C40 concrete to pour, then cover and cure for 7 days, and then remove the formwork to obtain the load-bearing bottom plate 1.

[0050] Step 2: Crush the construction waste in advance, then weigh 55 parts of construction waste, 10 parts of lime, 10 parts of cement and 25 parts of water in sequence, add them into a mixing device in sequence and mix them evenly to obtain a construction waste mixture.

[0051] Step 3: Install the compression steel mold with the load-bearing bottom plate 1 as the bottom mold and the length and width retracted by 50mm as the principle, then pour in a 1m high engineering slag mixture, use a compressor and a pressing plate with a convex shape to compress the engineering slag mixture, and after it is formed, a single counterweight compressed slag block 3 with a boss 5 and a rectangular groove Ⅱ 6 is formed; then repeat the above operation until several counterweight compressed slag blocks 3 are compressed and overlapped to a height of 2500mm, and then remove the compression steel mold.

[0052] Step 4: Tie steel bars around the weighted compressed soil block 3 with a length, width and height of 3400×1400×2500mm after stacking, and support the concrete pouring formwork along the circumference of the load-bearing bottom plate 1.

[0053] Step 5: Use recycled fine stone aggregate concrete to cast the shell along the gap between the counterweight compressed soil block 3 and the concrete casting template, then cover and cure for 7 days, and then remove the mold to form a recycled aggregate concrete shell 2 that covers the counterweight compressed soil block 3, thereby obtaining a finished mass block.

[0054] Step six: hoist the finished mass block onto the scale and weigh it to 29.83t. Then use the two rectangular grooves Ⅱ6 of the topmost counterweight compressed slag block 3 as weight adjustment holes. Fill the engineering slag through the weight adjustment holes according to the set weight to add 0.17t of weight. After curing, a laminated compressed solid waste mass block with a length, width and height of 3500×1500×2700mm and a mass of 30t is obtained.

[0055] Beneficial effects of the present invention: (1) The present invention adopts an in-situ multiple stacking compression method, and uses a low-power compressor to compress multiple batches of small-tonnage counterweight slag blocks on the load-bearing bottom plate 1, and then uses a tongue-and-groove design to combine multiple small-tonnage counterweight compressed slag blocks 3 to form a whole, thereby solving the problem of ultra-high performance requirements of the compressor and excessive pressure on the template side due to the large size of the mass block for gravity energy storage in one-time molding, reducing the performance requirements for the compressor, and reducing the manufacturing cost and difficulty; (2) The present invention greatly reduces the construction cost of the mass block by using construction waste and recycled fine aggregate, avoids the waste of natural resources, effectively reduces the carbon dioxide emissions in the construction of gravity energy storage projects, and realizes the full application of solid waste materials in the non-main force-bearing areas of the mass block; (3) The present invention adopts a composite structure of recycled fine aggregate concrete and compressed slag, which effectively ensures the safety of the combination of the small-tonnage counterweight compressed slag block 3, improves the surface texture and durability of the mass block, and prolongs the service life of the mass block.

[0056] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the technical requirements.

Claims

1. A laminated compressed solid waste mass block for gravity energy storage, characterized in that: It includes a load-bearing base plate, a counterweight compressed soil block and a recycled aggregate concrete shell; the load-bearing base plate is a horizontally arranged rectangular parallelepiped structure, and is a transmission force-bearing member, and has rectangular grooves I vertically embedded and symmetrically opened on its upper surface at intervals from left to right along the horizontal direction; a vertically and horizontally arranged recycled aggregate concrete shell is also vertically aligned on the upper surface of the load-bearing base plate, and the upper and lower surfaces of the recycled aggregate concrete shell are both open; inside the recycled aggregate concrete shell, a number of counterweight compressed soil blocks matching with it are stacked in sequence from top to bottom, each of the counterweight compressed soil blocks is a horizontally arranged rectangular parallelepiped structure, and the bottommost counterweight compressed soil block and the load-bearing base plate, as well as the adjacent counterweight compressed soil blocks, are overlapped by a tongue-and-groove design, and ensure that the upper surface of the topmost counterweight compressed soil block is horizontally coplanar with the upper surface of the recycled aggregate concrete shell, and then all the counterweight compressed soil blocks are covered by the recycled aggregate concrete shell to form a whole.

2. The laminated compressed solid waste mass block for gravity energy storage according to claim 1, characterized in that: The outer side surfaces of the recycled aggregate concrete shell are aligned with the outer side surfaces of the load-bearing bottom plate, and the wall thickness of the recycled aggregate concrete shell is 50-100 mm, and it is ensured that each of the rectangular grooves I is located within the internal covering area of ​​the recycled aggregate concrete shell.

3. The laminated compressed solid waste mass block for gravity energy storage according to claim 2, characterized in that: On the lower surface of each of the counterweight compressed soil blocks, bosses matching the rectangular grooves I are respectively provided relative to the two rectangular grooves I. Each of the bosses is integrally formed with the corresponding counterweight compressed soil block, and through the snap-fit ​​cooperation between the bosses and the corresponding rectangular grooves I, the bottom counterweight compressed soil block is snap-fitted and overlapped with the load-bearing bottom plate, and it is necessary to ensure that the bottom surface of the bottom counterweight compressed soil block is tightly fitted with the upper surface of the load-bearing bottom plate.

4. The laminated compressed solid waste mass block for gravity energy storage according to claim 3 is characterized in that: On the upper surface of each of the counterweight compressed soil blocks, a rectangular groove II matching the boss is vertically embedded relative to the corresponding two bosses, and through the snap-fit ​​cooperation between the boss and the corresponding rectangular groove II, the adjacent counterweight compressed soil blocks are snap-fitted and overlapped together, and it is ensured that the lower surface of each upper counterweight compressed soil block is tightly fitted with the upper surface of the corresponding lower counterweight compressed soil block.

5. The laminated compressed solid waste mass block for gravity energy storage according to claim 4, characterized in that: The two rectangular grooves II of the top counterweight compressed soil block are used as weight adjustment holes, and the weight of the superimposed compressed solid waste mass block is supplemented by filling the soil.

6. The laminated compressed solid waste mass block for gravity energy storage according to claim 5, characterized in that: The load-bearing bottom plate is cast by C40 reinforced concrete.

7. The laminated compressed solid waste mass block for gravity energy storage according to claim 6, characterized in that: The recycled aggregate concrete shell is made of recycled fine stone aggregate concrete, and the particle size of the recycled fine stone aggregate is 5-10 mm.

8. The laminated compressed solid waste mass block for gravity energy storage according to claim 7, characterized in that: The formula of each of the weighted compressed soil blocks is as follows: 60~80 pieces of construction waste 2~10 parts lime 2~10 parts cement 15~25 parts of water.

9. The method for preparing a laminated compressed solid waste mass block for gravity energy storage according to claim 8, characterized in that The following steps are involved: Step 1: Support the formwork according to the shape of the load-bearing bottom plate and the position of the rectangular groove I inside it, and ensure that the two rectangular grooves I are 100mm away from the edge of the load-bearing bottom plate; then after tying the bottom plate reinforcement, use C40 concrete to pour, then cover and cure for 7 days, and then remove the formwork to obtain the load-bearing bottom plate; Step 2: crush the construction waste soil in advance, weigh the construction waste soil, lime, cement and water in order according to the set ratio, add them into the mixing equipment in turn and mix them evenly to obtain the construction waste soil mixture; Step 3: Install the compression steel mold with the load-bearing bottom plate as the bottom mold and the length and width shrinking by 50~100mm, then pour in the engineering slag mixture with a height of 1m, use the compressor and the pressing plate with a convex shape to compress the engineering slag mixture, and after it is formed, a single weighted compressed slag block with a boss and a rectangular groove II is formed; then repeat the above operation until several weighted compressed slag blocks are compressed and overlapped to the designed height, and then remove the compression steel mold; Step 4: Tie steel bars around the stacked weighted compressed soil blocks, and support the concrete pouring formwork along the circumference of the load-bearing bottom plate; Step 5: Use recycled fine stone aggregate concrete to cast the shell along the gap between the weighted compressed soil block and the concrete casting template, then cover and cure for 7 days, and then remove the mold to form a recycled aggregate concrete shell that covers the weighted compressed soil block, thereby obtaining a finished mass block; Step six: hoist the finished mass blocks onto the scale for weighing, and then use the two rectangular grooves Ⅱ of the topmost counterweight compressed slag block as weight adjustment holes, fill the engineering slag through the weight adjustment holes according to the set weight to add weight and perform maintenance again, thereby obtaining the laminated compressed solid waste mass blocks.

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