A storable box type casting maintenance device for a filling body and a casting maintenance method

Abstract

The present application relates to the technical field of filling mining, and particularly relates to a box type filling body pouring and curing device and a pouring and curing method, the pouring and curing device comprises a plurality of frames which are detachably connected and in an "L" shape, a positioning frame assembly and a plurality of storage boxes, the frame comprises two splicing plates which are perpendicular to each other, a plurality of pouring openings are symmetrically arranged on the longitudinal and transverse center lines of the splicing plates, and two through grooves are formed on the longitudinal center lines of the splicing plates, each two frames can be spliced into a square mold which has a cavity capable of pouring a filling body, a connecting piece is arranged at each top corner of each group of molds to change the height of the device, the free end of the positioning frame assembly is clamped in the first through groove, and the plurality of storage boxes are uniformly arranged in the mold by the positioning frame assembly to form a containing space, and the containing space is connected with the pouring opening through a communication piece to fill the storage material into the containing space, so that the device not only has a supporting effect, but also can increase the available space underground of a coal mine.

Description

Technical Field

[0001] This invention relates to the field of backfill mining technology, and in particular to a storage box-type casting and curing device and method for backfill bodies. Background Technology

[0002] In terms of space utilization, my country has long focused on above-ground space, while underground space has been somewhat neglected due to its high development difficulty, the large amount of waste generated during excavation, and the difficulty in maintenance.

[0003] Currently, my country's coal mining is mainly carried out through underground mining, and the goaf is mainly dealt with by caving. For a long time, a large amount of underground space in abandoned coal mines has been wasted. With the advancement of technology, the advantages of constant temperature and humidity in deep mines have gradually gained attention, and the utilization of underground coal mine space has gradually been put on the agenda. In addition, due to the proposal of achieving carbon neutrality and carbon emission targets, carbon dioxide sequestration has gradually become a hot topic, and the underground space of abandoned coal mines has become a good storage carrier. In the past, the main research directions of underground coal mine space included the use of underground space for high-pressure gas storage, construction of underground reservoirs, geothermal extraction, underground energy storage, etc. However, due to their deep burial, high stress, and difficulty in support, and the difficulty in constructing usable underground space, their specific utilization has only remained at the theoretical level, with few practical applications.

[0004] Based on the current demand for the utilization of underground space in mines in my country, higher requirements have been put forward for the support of the goaf area. On the one hand, the support needs to maintain the stability of the goaf area and prevent the collapse of the overlying rock strata; on the other hand, it is necessary to construct as much usable space as possible to meet the requirements for the utilization of underground space in coal mines. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a storage box-type casting and curing device and method for filling bodies that provides both supporting strength and storage space.

[0006] This invention provides a storage box-type casting and curing device for filling materials, comprising:

[0007] Multiple detachable frames, each in an "L" shape, include a first and a second splicing plate perpendicular to each other. The first and second splicing plates are symmetrically provided with multiple pouring ports along their longitudinal and transverse center lines, and have two first through slots opened vertically along their longitudinal center line. Each pair of frames can be spliced ​​into a set of square molds with cavities. Filling material is poured into the cavities through the upper pouring port. Each set of molds has a connector at its apex corner to change the height of the device.

[0008] A positioning frame assembly, wherein the free end of the positioning frame assembly is engaged in the first through slot;

[0009] Multiple storage boxes, each having a chamber, are evenly positioned inside the mold by the positioning frame assembly to form a receiving space inside the mold. The storage boxes are connected to the pouring port via a connecting member to fill the receiving space with stored materials.

[0010] Optionally, the storage box may be made of metal or non-metal materials.

[0011] Optionally, when the storage box is made of flexible metal or non-metal material, the storage box is removed from the pouring port through the connecting piece after the filling body is poured.

[0012] Optionally, the positioning frame assembly is in the shape of a cross, and the positioning frame assembly includes a main beam and two side beams. A second through groove is provided at the center of the main beam, and a protrusion adapted to the second through groove is provided on the opposite side of each of the two side beams.

[0013] Optionally, the distance from the top of the positioning frame assembly to the ground is the same as the height of the mold.

[0014] Optionally, it may also include a positioning frame assembly plug, which is adapted to the first through groove to pour the filling material to the height of the mold.

[0015] Optionally, a pouring port plug may also be included, which is used to seal the pouring port.

[0016] A second aspect of the present invention provides a casting and curing method, based on the storage box-type casting and curing device for filling bodies described in any of the above embodiments, comprising the following steps:

[0017] S1. Calculate the actual size of the filling body and the distance between each filling body according to the actual filling rate requirements of the project.

[0018] S2. Select the size of the mold, the material of the storage box, and the quantity and size of each component according to the actual engineering needs. Determine the size and number of the frame and the pouring height according to the actual top connection needs. When the height of the poured filling body is less than 1m, set up one layer of the mold for pouring. When the height of the poured filling body exceeds 1m, it is necessary to use the connector to connect multiple layers of the mold to achieve one-time pouring.

[0019] S3. Mark the placement positions of the frame according to engineering calculations and actual needs, transport the frame to the coal mining face, assemble multiple frames into the mold, and pour the mold through the upper pouring port of the top mold. Stop pouring when the mold is close to the positioning frame assembly. After it has initially solidified, remove the positioning frame assembly, fill the first through groove with the plug of the positioning frame assembly, and then continue pouring to the height of the mold.

[0020] S4. After the filling body is filled through the pouring port, top material is added before final setting. When the pouring port is blocked by the filling body, the top material can be added at the plug of the positioning frame assembly.

[0021] S5. Seven days after the pouring is completed, or when the pouring strength reaches 80%, the mold shall be removed, and the storage box shall be removed as needed.

[0022] The technical solution provided by the embodiments of the present invention has the following advantages compared with the prior art:

[0023] This invention provides a storage box-type casting and curing device and method for filling materials. The storage box-type casting and curing device for filling materials includes multiple detachably connected frames, a positioning frame assembly, and multiple storage boxes. Two frames can be spliced ​​to form a mold with cavities, allowing filling materials to be poured into the cavities through casting holes on the frames. The free end of the positioning frame assembly is engaged in the first through slot of the upper layer of the top mold. The position of the storage boxes in the mold can be adjusted through the casting port, so that the storage boxes are evenly distributed inside the mold, preventing the reduction of the strength and stability of the filling materials due to asymmetrical cavity positions. The storage boxes can also provide a receiving space for the mold. By setting a connecting piece to connect the casting port and the storage boxes, the filling material can be stored in the receiving space. This allows the casting and curing device to not only be placed in the goaf to maintain the stability of the goaf and construct underground space in the coal mine, but also to increase the usable underground space in the coal mine. This space can be connected to the external space or form an independent closed space, thereby realizing the storage of materials with energy storage and heat storage properties. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the filling body according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the casting and curing device described in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the frame assembly into a mold according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the heightened mold assembly described in an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the framework described in an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the connector structure according to an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the positioning frame assembly described in an embodiment of the present invention;

[0033] Figure 8 This is a schematic diagram of the installation of the positioning frame assembly according to an embodiment of the present invention.

[0034] Among them, 1. Frame; 2. Positioning frame assembly; 201. Main beam; 202. Side beam; 3. Storage box; 4. Connector; 5. Pouring port; 6. Second bolt hole; 7. Second bolt; 8. First bolt hole; 9. First bolt; 10. Filling body; 11. Pouring port plug; 12. Positioning frame assembly plug; 13. First through groove; 14. Connecting component. Detailed Implementation

[0035] To better understand the above-mentioned objectives, features, and advantages of the present invention, the solutions of the present invention will be further described below. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of the invention, but the invention may also be practiced in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the invention, and not all embodiments.

[0037] Reference Figures 1 to 7 As shown, the present invention provides a storage box-type casting and curing device for filling bodies, including multiple detachably connected frames 1, positioning frame assembly 2 and multiple storage boxes 3.

[0038] Among them, reference Figures 2 to 5As shown, the frame 1 is L-shaped and includes a first splicing plate and a second splicing plate that are perpendicular to each other. The first splicing plate and the second splicing plate are symmetrically provided with multiple pouring ports 5 along their longitudinal and transverse center lines, and two first through slots 13 are opened above and below their longitudinal center lines. Each pair of frames 1 can be spliced ​​into a set of square molds with cavities. Filling material 10 is poured into the cavity through the upper pouring port 5. Each set of molds is provided with a connector 4 at the top corner to change the height of the device. Specifically, frame 1 is fixedly connected by two splicing plates with an included angle of 90°. The splicing plates are made of wood or steel and have a wall thickness of 20 to 30 cm. One frame 1 can be flipped over and spliced ​​with the original frame 1 to form a square mold. The splicing surface of frame 1 has a second bolt hole 6. The two frames 1 are threadedly connected to the second bolt hole 6 by second bolts 7 to form a square mold. The square mold has a cavity inside that can be used to pour the filling material 10. Each splicing plate has four circular pouring ports 5. The four circular pouring ports 5 are symmetrical about the longitudinal center line and the transverse center line of each splicing plate. That is, the four circular pouring ports 5 are symmetrically arranged with respect to the center of the splicing plate. The centers of the two longitudinally arranged pouring ports 5 on each splicing plate are... The connection line corresponds to the center line of the storage box 3 inside the mold. Each pouring port 5 is 40 to 60 cm away from the top corner of the splicing plate and 30 cm away from the edge of the splicing plate in the height direction. The diameter of the pouring port 5 is 5 to 20 cm. After the frame 1 is spliced ​​to form the mold, slurry can be filled into the mold through the pouring port 5, and the internal components of the mold can be viewed or operated through the pouring port 5. Before final setting, water vapor can be sprayed through the pouring port 5 for curing. Each splicing plate has two first through slots 13 opened vertically along its longitudinal center line. The two first through slots 13 are both set between the two pouring ports 5 in the transverse direction. The top corner of the mold formed by splicing the two frames 1 is provided with a first bolt hole 8. Refer to Figure 6 As shown, the connector 4 is an angle iron with an included angle of 90° and two bolt holes are opened along its longitudinal direction. The angle iron is fastened to the mold by the first bolt 9. That is, multiple sets of spliced ​​molds are connected along the longitudinal direction by the connector 4 to achieve different pouring heights.

[0039] Reference Figure 2As shown, the free end of the positioning frame assembly 2 is engaged in the first through groove 13; multiple storage boxes 3 each have a cavity and are evenly positioned inside the mold by the positioning frame assembly 2 to form a receiving space inside the mold. The storage boxes 3 are connected to the pouring port 5 through the connecting piece 14 to fill the receiving space with stored materials. Specifically, the free end of the positioning frame assembly 2 is engaged in the upper first through groove 13 of the top mold. The position of the storage box 3 in the mold can be adjusted through the pouring port 5, so that the storage box 3 is evenly distributed inside the mold. This prevents the strength and stability of the filling body 10 from being reduced due to the asymmetrical position of the cavity. The storage box 3 has a cavity, thus providing a space for the mold to accommodate. The connecting member 14 is a cylindrical structure adapted to the pouring port 5. The connecting member 14 passes through the pouring port 5 and abuts against the storage box 3. When it is necessary to store materials, materials can be filled into the accommodating space formed by the storage box 3 through the connecting member 14. This allows the entire device to not only be placed in the goaf area to maintain the stability of the goaf area and construct underground space in the coal mine, but also to increase the usable underground space in the coal mine. This space can be connected to the external space or form an independent closed space, thereby realizing the storage of materials with energy storage and heat storage properties.

[0040] Furthermore, the storage container 3 is made of either metallic or non-metallic materials. Specifically, the shape of the storage container 3 can be set as a cube or a cylinder as needed, and its material is made of either metallic or non-metallic materials depending on the contents and purpose of the stored material. For example, when storing radioactive waste, the storage container 3 can be made of lead, and when storing water, it can be made of steel. Alternatively, it can be made of non-metallic materials such as rubber or synthetic resin.

[0041] Furthermore, when the storage tank 3 is made of flexible metal or non-metal materials, after the filling body is poured, the storage tank 3 is removed from the pouring port 5 via the connecting piece 14. If necessary, the storage tank 3 can be removed from the pouring port 5 via the connecting piece 14, thereby forming a cavity within the filling body for pouring other types of materials to achieve a composite structure, or for pouring filling materials with energy storage and heat storage properties, so that it not only has a certain supporting strength but also storage function.

[0042] Reference Figure 7 and Figure 8As shown, the positioning frame assembly 2 is shaped like a cross. The positioning frame assembly 2 includes a main beam 201 and two side beams 202. A through groove is provided at the center of the main beam 201, and protrusions that fit the through groove are provided on opposite sides of the two side beams 202. Specifically, the two side beams 202 can be inserted into the through groove to form the cross-shaped positioning frame assembly 2 with the main beam 201, thereby positioning the storage boxes 3. This ensures that the storage boxes 3 are evenly distributed in the center of the mold, that is, evenly distributed in the four cavities formed by the positioning frame assembly 2 and the mold, thereby improving the strength and stability of the filling body 10. Furthermore, the length and width of the positioning frame assembly 2 are the same as the length and width of the mold, respectively, to avoid excessive length affecting operation. Alternatively, the positioning frame assembly 2 can be configured as a grid shape. In this case, the positioning frame assembly 2 and the mold form multiple cavities, and the number of storage boxes 3 depends on the number of cavities. The storage boxes 3 are evenly distributed in the multiple cavities formed by the positioning frame assembly 2 and the mold.

[0043] Continue to refer to Figure 7 As shown, to facilitate the installation of the positioning frame assembly 2, a handle is provided on the side of the positioning frame assembly 2 away from its center.

[0044] Reference Figure 2 As shown, the upper surface of the positioning frame assembly 2 is at the same level as the upper surface of the uppermost mold. Specifically, the positioning frame assembly 2 forms a smooth surface after being combined with the mold. At the same time, the cross-section of the free end of the positioning frame assembly 2 is adapted to the through groove, so that the positioning frame assembly 2 can be stably placed on the top of the mold, avoiding the shaking of the positioning frame assembly 2 from affecting the position of the calibration storage box 3, thereby affecting the storage of materials and the stability of the filling body 10.

[0045] In other embodiments, reference is made to Figure 2 and Figure 3 As shown, it also includes a positioning frame assembly plug 12, which is adapted to the first through groove 13 to pour the filling material 10 to the height of the mold. After the storage box 3 is positioned by the positioning frame assembly 2, the positioning frame assembly 2 is no longer needed, and the positioning frame assembly plug 12 can be placed in the first through groove 13 so that the filling material 10 can fill the mold. Afterwards, the positioning frame assembly plug 12 can be removed to add top material and perform curing. The top distance can be controlled by controlling the thickness of the top material to achieve full top connection.

[0046] Continue to refer to Figures 2 to 4 As shown, it also includes a pouring port plug 11, which is used to seal the pouring port 5. Specifically, the pouring port plug 11 is used to seal all pouring ports 5 except the uppermost pouring port 5, to prevent leakage of filling grout during the pouring process.

[0047] Other embodiments of the present invention provide a casting and curing method, based on the storable box-type filling body casting and curing device described in any of the above embodiments, comprising the following steps:

[0048] S1. Based on the actual filling rate requirements of the project, calculate the actual size of the filling body 10 and the distance between each filling body 10;

[0049] S2. Select the size of the mold, the material of the storage box 3, and the quantity and size of each component according to the actual engineering needs. Determine the size and number of frames 1 and the pouring height according to the actual top connection needs. When the height of the poured filling body 10 is less than 1m, set up one layer of mold for pouring. When the height of the poured filling body 10 exceeds 1m, use connectors 4 to connect multiple layers of molds to achieve one-time pouring.

[0050] S3. According to the engineering calculation and actual needs, mark the placement position of frame 1, transport frame 1 to the coal mining face. It requires two or more people to assemble. First, place storage box 3 inside frame 1, and then connect two frames 1 with bolts to form a mold. Remove the upper positioning frame component plug 12 of the uppermost frame 1 and place positioning frame component 2 in the through groove. Adjust the position of storage box 3 through pouring port 5 so that it is evenly placed around positioning frame component 2. Start pouring through upper pouring port 5. Stop pouring when it is close to positioning frame component 2. After it has initially solidified, remove positioning frame component 2, fill the through groove with positioning frame component plug 12, and then continue pouring to the height of the mold.

[0051] S4. After filling the filling body 10 through the pouring port 5, add top material before final setting. When the pouring port 5 is blocked by the filling body 10, the top material can be added at the plug 12 of the positioning frame assembly.

[0052] S5. Seven days after the pouring is completed, or when the pouring strength reaches 80%, the mold is removed, and the storage box 3 is removed as needed. This allows the poured filling body 10 to not only prevent the top plate from settling, but also to use the internal cavity of the filling body 10 and the material filling the cavity to provide a certain amount of supplementary strength to the filling body 10.

[0053] In a specific application, Example 1:

[0054] Taking a coal mine with a goaf height of 1m and a burial depth of 500m, a false roof of mudstone with a thickness of about 0.2m, an immediate roof of sandstone and siltstone with a thickness of about 5m, and a floor of siltstone as an example, the goaf needs to be used for underground heat extraction. Calculations show that to ensure the support strength, a backfill body with dimensions of 2m*2m*1m needs to be poured, and energy storage material (such as a backfill material containing PCM phase change material: slurry mass fraction of 72%, cement to tailings mass ratio of 1:4, and 5% paraffin wax added) is required.

[0055] (1) Select frame 1 with a height of 1m and a thickness of 20cm. The dimensions of each splicing plate are: long plate 240cm*20cm*100cm, short plate 200cm*20cm*100cm, and the main beam of positioning frame component 2 is 240cm*40cm*40cm.

[0056] (2) Storage box 3 is selected. In actual engineering design, strength calculation (compression bar stability) is required to prioritize the strength of the filling body 10. The corresponding dimensions of the filling body 10 are calculated based on the load applied to the top plate, and the remaining space is designed as the space for storage box 3. In this embodiment, the length and width of storage box 3 are 0.4m*0.4m, and the height is 1m. Based on the internal space function of the filling body 10, the material of this storage box 3 is selected as a flexible and deformable material. This makes it convenient to remove the storage box 3 from the lower pouring port 5 after the filling body 10 is poured, and to further fill it with energy storage material. If necessary, additional filling material can be added at the connecting part of the storage box 3 to seal the filling body 10, reduce heat loss, and supplement the strength of the filling body 10.

[0057] (3) Two second bolt holes 6 are evenly distributed on the two splicing plates of frame 1. They are arranged along the thickness direction on the long back plate and along the length direction on the short side plate. In this embodiment, the thickness of frame 1 is 20cm. The center of the second bolt hole 6 on the long plate is located 10cm long and 30cm wide from the left boundary, with a radius of 5cm. The pouring port 5 is located 60cm long and 30cm high from the left boundary, with a radius of 10cm. The through groove is located at the center of the long plate, with a size of 40cm*20cm*40cm. The center of the second bolt hole 6 on the short plate is located 10cm long and 30cm wide from the right boundary, with a radius of 5cm. The pouring port 5 is located 50cm long and 30cm high from the left boundary, with a radius of 10cm. The through groove is located at the center of the short plate, with a size of 40cm*20cm*40cm. This allows the holes of frame 1 to be connected after flipping, so as to fix and install it.

[0058] (4) Assemble the components. Place the storage box 3 at the designed position and assemble the frame 1 on its outside to form a square mold. Remove the positioning frame component plug 12 on the frame 1, insert the positioning frame component 2 into the through groove, and adjust the position of the storage box 3 so that it is evenly distributed around the positioning frame component 2. Extend the connecting piece into the pouring port 5 below the mold. At this time, the component assembly is completed. Start pouring through the pouring port 5 above the mold. Stop pouring when the pouring height is close to the positioning frame component 2. Pull out the positioning frame component 2. At this time, seal the pouring port 5 below the mold with the pouring hole plug 11. Continue pouring to a height of 1m. Then install the positioning frame component plug 12 and wait for it to solidify.

[0059] (5) Add top material, wait for all filling body 10 to solidify and have initial strength, then use the connecting piece to pull out the storage box 3 from the pouring port 5 below the mold, and place heat transfer pipes from the pouring ports 5 above and below the mold to further fill the heat storage material.

[0060] (6) After the final setting is completed, the pouring strength reaches 80% or seven days after the pouring is completed, the frame 1 can be dismantled and recycled.

[0061] Example 2:

[0062] The requirement is to utilize the underground space of the coal mine for nuclear waste storage. The goaf is 2m high and 350m deep, with a false roof of mudstone approximately 0.1m thick, an immediate roof of sandstone and siltstone approximately 3m thick, and a floor of siltstone. A box-type infill structure is being used for goaf support. The preliminary design of the infill body 10 has dimensions of 2m x 2m x 2m. The specific steps are as follows:

[0063] (1) Based on the actual engineering conditions, the actual size of the filling body 10 and the distance between each filling body 10 are calculated. In this embodiment, since lead containers are required for the storage of radioactive waste, and there are certain requirements for the thickness of the containers, the size of the internal space of the filling body 10 needs to be considered when designing this embodiment. Taking the fuel rod as an example, the fuel rod is 500mm long and 1cm in diameter. The required shielding layer thickness is about 15cm (15cm on all sides). At this time, the internal space size needs to meet the requirements of radioactive waste storage size. The size of the storage box 3 needs to be greater than 0.31m*0.31m*0.8m. The storage box 3 is a columnar storage box 3. The internal space of the filling body 10 can be designed to be 0.4m*0.4m*2m. Thus, the size of the filling body 10 is 2m*2m*2m, which meets the requirements.

[0064] (2) Select a reasonable frame 1 and storage box 3 according to the actual engineering needs. In this embodiment, the length and width of the filling body 10 need to be the same as in the first embodiment. The same frame 1 as in the first embodiment can be used. The storage box 3 is made of lead material and its size is 0.4m*0.4m*2m. A partition can be set inside to fill radioactive waste.

[0065] (3) As can be seen from step (2), the same frame 1 as in Example 1 is selected in this embodiment. However, since the filling height is 2m, four frames 1 and four connectors 4 are selected to form a double-layer casting mold. The filling body 10 with a height of 2m is cast at one time, which can save the cost and time of making the frame 1, realize reuse, and improve production efficiency. The specific casting steps can be referred to step (4) in Example 1.

[0066] (4) After the filling material 10 has initially solidified, add top material.

[0067] (5) After the final setting is completed, the pouring strength reaches 80% or seven days after the pouring is completed, the frame 1 can be dismantled and recycled.

[0068] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0069] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.

Claims

1. A storage box-type casting and curing device for filling materials, characterized in that, include: Multiple detachable frames (1) are L-shaped and include a first splicing plate and a second splicing plate that are perpendicular to each other. The first splicing plate and the second splicing plate are symmetrically provided with multiple pouring ports (5) along their longitudinal and transverse center lines, and two first through slots (13) are opened above and below their longitudinal center lines. Each pair of frames (1) can be spliced ​​into a set of square molds with cavities. Filling material (10) is poured into the cavity through the upper pouring port (5). Each set of molds is provided with a connector (4) at the top corner to change the height of the device. Positioning frame assembly (2), the free end of which is engaged in the first through slot (13); Multiple storage boxes (3) are provided, each having a chamber and positioned evenly inside the mold by the positioning frame assembly (2). The multiple storage boxes (3) form a receiving space inside the mold. The storage boxes (3) are connected to the pouring port (5) by a connecting member (14). When it is necessary to fill the storage material, the storage material is filled into the receiving space through the connecting member (14).

2. The storage box-type casting and curing device for filling bodies according to claim 1, characterized in that, The storage box (3) is made of metal or non-metal materials.

3. The storage box-type casting and curing device for filling bodies according to claim 1, characterized in that, The positioning frame assembly (2) is in the shape of a cross. The positioning frame assembly (2) includes a main beam (201) and two side beams (202). A second through groove is provided at the center of the main beam (201). A protrusion adapted to the second through groove is provided on the opposite side of each of the two side beams (202).

4. The storage box-type casting and curing device for filling bodies according to claim 1, characterized in that, The upper surface of the positioning frame assembly (2) is at the same level as the upper surface of the uppermost mold.

5. The storage box-type casting and curing device for filling bodies according to claim 1, characterized in that, It also includes a positioning frame assembly plug (12) that is adapted to the first through groove (13) to pour the filling body (10) to the height of the mold.

6. The storage box-type casting and curing device for filling bodies according to claim 1, characterized in that, It also includes a pouring port plug (11) for sealing the pouring port (5).

7. A method for casting and curing a filling body, based on a storable box-type filling body casting and curing device as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1. Calculate the actual size of the filling body (10) and the distance between each filling body (10) according to the actual filling rate requirements of the project; S2. Select the size of the mold, the material of the storage box (3), and the quantity and size of each component according to the actual engineering needs. Determine the size and number of the frame (1) and the pouring height according to the actual top connection needs. When the height of the poured filling body (10) is less than 1m, set up one layer of the mold for pouring. When the height of the poured filling body (10) exceeds 1m, the connector (4) is needed to connect multiple layers of the mold to achieve one-time pouring. S3. According to the engineering calculation and actual needs, mark the placement position of the frame (1), transport the frame (1) to the coal mining face, splice multiple frames (1) into the mold, and pour through the upper pouring port (5) of the top mold. Stop pouring when it is close to the positioning frame assembly (2). After it has initially solidified, remove the positioning frame assembly (2), fill the first through groove (13) with the plug (12) of the positioning frame assembly, and then continue pouring to the height of the mold. S4. After the filling body (10) is filled through the pouring port (5), the top material is added before the final setting. When the pouring port (5) is blocked by the filling body (10), the top material can be added at the plug (12) of the positioning frame assembly. S5. The mold shall be removed seven days after the pouring is completed, or when the pouring strength reaches 80%.

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