A modular assembled multi-cavity corrugated steel plate silo and its construction method

Abstract

The present invention provides a modular assembled multi-cavity corrugated steel plate silo and its construction method, which belongs to the field of steel plate silo storage. It is designed to solve the problems of poor sealing, poor storage effect, difficulty in assembly and disassembly and modification of traditional assembled grain silos, and poor thermal insulation effect of single-layer assembled grain silos. It includes a spliced ​​steel section I and a spliced ​​steel section II located at the two end portions and at least one inner arc steel section between the two. The spliced ​​steel section I and the spliced ​​steel section II are detachably connected through two matching ear plates. The stiffening steel plate on the spliced ​​steel section I is sequentially connected to the stiffening steel plate of at least one inner arc steel section and the stiffening steel plate of the spliced ​​steel section II through the cover plate I. The arc-shaped steel plate is arranged inside, outside or in the middle of the module unit. Through factory prefabrication, multi-cavity segmentation, on-site modular installation, steel reinforcement, internal filling of thermal insulation materials and other measures, the overall strength, construction convenience, thermal insulation and moisture retention of the traditional single-layer / single-cavity corrugated steel side wall are enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of steel plate silo storage, and in particular to a modular assembled multi-cavity corrugated steel plate silo and a construction method thereof. Background Art

[0002] my country is a populous country, and grain reserves are crucial to national well-being and economic security. Granaries are a crucial component of grain storage technology. In the early years of the People's Republic of my country, brick and wood structures dominated. Since the reform and opening-up policy, brick-concrete and reinforced concrete structures have gradually developed. However, these structures take a relatively long time to construct, and concrete is significantly affected by seasonal and climatic conditions, prone to temperature cracks and shrinkage cracks. These structures are extremely inconvenient to renovate, dismantle, or relocate. Furthermore, these structures have poor water resistance, high moisture absorption, and are prone to leakage. Their poor moisture resistance makes stored grain susceptible to mold and rot.

[0003] Since the introduction of galvanized corrugated steel prefabricated silos in my country in 1982, they have experienced rapid development due to their advantages, including light weight, low foundation requirements, low cost, excellent durability, and easy management. Their comprehensive supporting systems and high degree of mechanical automation have effectively met the requirements of safe grain storage and other process requirements. However, traditional prefabricated corrugated steel silos have relatively poor sealing properties and are less effective for storing powdered and perishable materials. Their installation process is relatively complex, and subsequent dismantling, relocation, or modification is also difficult. Furthermore, due to the low longitudinal stiffness and thin thickness of corrugated steel sheets, they are prone to vertical buckling under loads such as their own weight. Furthermore, the maximum circumferential tensile force provided by traditional single-layer or single-cavity corrugated steel sheets is relatively low. These characteristics limit the scope of use of corrugated steel silos. In addition, for materials that have requirements for storage temperature (such as seeds, etc.), when they are in areas with large temperature differences (such as the cold regions of Northeast China, etc.), the traditional single-layer prefabricated steel silos have poor thermal insulation performance, which can easily cause the external temperature to affect the quality of the stored materials. Temperature regulation in the silo requires continuous work, and storage costs will also increase significantly. Summary of the Invention

[0004] The technical problems to be solved by the present invention are:

[0005] In order to solve the problems of poor sealing of traditional prefabricated granaries, poor storage effect, difficulty in assembly, disassembly and modification, and poor insulation effect of single-layer prefabricated granaries.

[0006] The present invention is to solve the above technical problems using the following technical solutions:

[0007] The present invention provides a modular unit, comprising a spliced ​​steel section I and a spliced ​​steel section II respectively located at two end portions, at least one inner-arc steel section being provided between the spliced ​​steel section I and the spliced ​​steel section II, and an end of the spliced ​​steel section I away from the inner-arc steel section and an end of the spliced ​​steel section II away from the inner-arc steel section are respectively provided with an ear plate for realizing detachable connection between two adjacent modular units, the ear plates being positioned correspondingly, the ear plate on one side being plugged into the ear plate on the other side and being slidable along the extension direction of the ear plate, and the number of ear plates on both the spliced ​​steel section I and the spliced ​​steel section II being two, and both being located at the inner and outer ends of the modular unit;

[0008] The longitudinal upper and lower ends of the spliced ​​steel section I and the spliced ​​steel section II close to one end of the inner arc steel are both provided with stiffening steel plates, and the upper and lower ends of the inner arc steel facing the circumferential ends of the spliced ​​steel section I and the spliced ​​steel section II are both provided with stiffening steel plates, and the stiffening steel plate on the spliced ​​steel section I is sequentially connected to the stiffening steel plate of at least one inner arc steel and the stiffening steel plate of the spliced ​​steel section II through the cover plate I; it also includes an arc-shaped corrugated steel plate, which is arranged inside, outside or in the middle of the module unit.

[0009] Furthermore, at least one cavity dividing steel plate is provided between the two ear plates on the spliced ​​steel section I, and a cavity dividing slot corresponding to the position of the cavity dividing steel plate is provided between the two ear plates on the spliced ​​steel section II; or at least one cavity dividing steel plate is provided between the two ear plates on the spliced ​​steel section II, and a cavity dividing slot corresponding to the position of the cavity dividing steel plate is provided between the two ear plates on the spliced ​​steel section I; the cavity dividing steel plate is inserted into the cavity dividing slot and the cavity dividing steel plate can slide along the extension direction of the cavity dividing slot, and is used to separate the splicing point of the two adjacent module units into at least two material-filled cavities through the cavity dividing steel plate when the two adjacent module units are connected.

[0010] Furthermore, the arc-shaped corrugated steel plate includes an outer corrugated steel plate and an inner corrugated steel plate, the two ends of the outer corrugated steel plate are respectively fixed on the spliced ​​steel section I and the spliced ​​steel section II, the spliced ​​steel section I and the inner-arc steel section, the inner-arc steel section and the inner-arc steel section, or the inner-arc steel section and the spliced ​​steel section II, and the outer corrugated steel plate is located outside the module unit; the two ends of the inner corrugated steel plate are respectively fixed on the spliced ​​steel section I and the spliced ​​steel section II, the spliced ​​steel section I and the inner-arc steel section, the inner-arc steel section and the inner-arc steel section, or the inner-arc steel section and the spliced ​​steel section II, and the inner corrugated steel plate is arranged on one side or both the inner and outer sides of the stiffening steel plate.

[0011] Furthermore, a material filling cavity can be formed between the outer corrugated steel plate and the inner corrugated steel plate, and the material filling cavity between the outer corrugated steel plate and the inner corrugated steel plate and the material filling cavity separated by the cavity dividing steel plate are both used to fill the cavity filling material.

[0012] Furthermore, the ear plate includes ear plate I and ear plate II, and both ear plate I and ear plate II are made of steel plates bent and formed and then welded to the steel flange. The shapes of ear plate I and ear plate II match, and ear plate I can be longitudinally inserted into ear plate II and can slide along the extension direction of ear plate II.

[0013] A modular assembled multi-cavity corrugated steel plate silo includes several module units. The module units are circumferentially spliced ​​to form an annular granary silo. Several annular granary silo tubes are longitudinally spliced ​​and lengthened in sequence to form an assembled granary silo tube. The end of the assembled granary silo tube is provided with an upper cover.

[0014] Furthermore, the module unit at the bottom is connected to the embedded steel section of the foundation ring beam at the bottom through the cover plate II, and the two ear plates I and the cavity steel plate on the spliced ​​steel section I of a module unit are respectively plugged into the ear plate II and the cavity slot of the spliced ​​steel section II of the adjacent module unit, or the two ear plates II and the cavity steel plate on the spliced ​​steel section I of a module unit are respectively plugged into the ear plate I and the cavity slot of the steel section at the splicing position of the adjacent module unit; the two adjacent module units in the longitudinal direction are connected through the cover plate II.

[0015] Furthermore, the two longitudinally adjacent spliced ​​steel sections I, the two longitudinally adjacent spliced ​​steel sections II and the two longitudinally adjacent arc inner steel sections are spliced ​​and lengthened by cover plate II; the spliced ​​steel sections I and II, the ear plates I and II are connected by through-hole screws; and the inner and outer sides of the longitudinal connection are both provided with outer corrugated steel plates.

[0016] A construction method for a modular assembled multi-cavity corrugated steel plate silo comprises the following steps:

[0017] S100, assembling the module units, placing the spliced ​​steel sections I and II at the ends of the arc, placing at least one inner-arc steel section inside the arc, and splicing the spliced ​​steel sections I and the inner-arc steel sections, the spliced ​​steel sections II and the inner-arc steel sections, and the two inner-arc steel sections through the cover plate I; installing the inner corrugated steel sheet on the steel sections, and then installing the outer corrugated steel sheet on the steel sections, and completing the assembly of the module units according to the required number of steel plate silo tubes;

[0018] S200, assembling the annular granary tube: transport the module units manufactured in step S100 to the construction site, and connect the module units to the pre-buried steel sections of the foundation ring beam at the bottom through the cover plate II according to the position of the steel plate tube. Then, connect two adjacent module units through the ear plate I and ear plate II and the cavity steel plate and cavity slot. When connecting, pay attention to the positioning of the cavity steel plate and the cavity slot at the node;

[0019] S300, assembly of longitudinal granary tubes. After the assembly of the annular granary tubes at the bottom layer is completed, assemble the annular granary tubes on the upper layer. Use cover plate II to longitudinally splice the module units. After the splicing is completed, a layer of corrugated steel plate is covered on the longitudinal connection area of ​​the two module units. After the assembly of one annular granary tube is completed, assemble the annular granary tubes on the upper layer. Finally, add the upper cover until the top of the assembled granary tubes is reached.

[0020] Furthermore, in step S100 , if it is necessary to fill the cavity with a filling material, the bottom of the module unit is first sealed, and then the cavity is filled with the filling material.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The modular assembled multi-cavity corrugated steel silo proposed in this invention is prefabricated in the factory and modularly assembled on site to achieve assembled connections. Except for the post-filling treatment of the connection node area, no wet work is required. Compared with traditional single-layer or single-cavity corrugated steel silos, it has higher overall strength, wider applicability, higher degree of assembly, and shorter construction period.

[0023] 2. The thickness and number of layers of the arc-shaped corrugated steel plate used in the present invention can adapt to the different hoop tensions corresponding to different diameters and different stored materials, making the structural setting more flexible and more applicable. Moreover, the hoop tension of the silo increases with the increase of the grain storage depth. The thickness and number of layers of the arc-shaped corrugated steel plate on the upper part of the silo can be adjusted, effectively saving structural materials and improving economic benefits.

[0024] 3. Compared with traditional prefabricated steel silos, due to the multi-chamber design, different thermal insulation materials and moisture-proof materials can be filled in different cavities as needed; and the multi-layer multi-chamber design also enhances the sealing performance of the corrugated steel side wall, which is suitable for materials with higher storage conditions;

[0025] 4. The present invention uses galvanized corrugated steel plates as the main components, which are light, high-strength, durable, corrosion-resistant and easy to process. The structure has a long service life and the corrugated steel plates have excellent moisture-proof performance, effectively preventing external moisture from affecting the quality of stored materials and keeping the warehouse dry.

[0026] 5. The steel sections at the joints of the present invention adopt a slot-type connection in the circumferential direction, which is simple and efficient. The slot can effectively transmit the circumferential tension while ensuring the density of the silo. In addition, the use of stiffening ribs makes the circumferential tensile bearing capacity and integrity better. The cover plate connection is used in the vertical direction to ensure the overall force-bearing capacity of the silo wall and avoid potential structural damage caused by weak links. And through modular processing, the modification, dismantling or relocation of the new corrugated steel side wall is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1This is a schematic diagram of the assembly of a modular assembled multi-cavity corrugated steel plate silo in an embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of a module unit in an embodiment of the present invention;

[0029] Figure 3 is a top view of a module unit in an embodiment of the present invention;

[0030] Figure 4 for Figure 3 Cross-sectional view of middle AA;

[0031] Figure 5 Schematic diagram of the chamber in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Module unit; 2. Outer covering corrugated steel plate; 3. Assembled granary tube; 4. Foundation ring beam; 11. Spliced ​​steel section I; 12. Spliced ​​steel section II; 13. Inner arc steel section; 14. Reinforcing steel plate; 15. Cover plate I; 16. Cover plate II; 17. Inner corrugated steel plate; 18. Outer corrugated steel plate; 19. Through-through screw; 110. Cavity filling material; 1101. Ear plate I; 1102. Dividing cavity steel plate; 1201. Ear plate II; 1202. Dividing cavity slot. DETAILED DESCRIPTION

[0034] In the description of the present invention, it should be noted that the terminology in each embodiment, such as "up", "down", "front", "back", "left", "right", etc., which indicate directions, are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated in accordance with the specific directions and defined operations and methods and structures in the specification. Such directional nouns do not constitute a limitation to the present invention.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] Specific implementation plan 1: Combined Figures 2 to 5As shown, the present invention provides a modular unit, comprising a spliced ​​steel section I11 and a spliced ​​steel section II12 respectively located at both ends, at least one arc-shaped steel section 13 is provided between the spliced ​​steel section I11 and the spliced ​​steel section II12, and an end of the spliced ​​steel section I11 away from the arc-shaped steel section 13 and an end of the spliced ​​steel section II12 away from the arc-shaped steel section 13 are respectively provided with an ear plate for realizing detachable connection between two adjacent modular units 1, the two ear plates are positioned correspondingly, one ear plate can be inserted into the other ear plate and can slide along the extension direction of the ear plate, the number of ear plates located on the spliced ​​steel section I11 and the spliced ​​steel section II12 are both two, and are located at the inner and outer ends of the modular unit 1, and are used to enclose a material filling cavity separated by a cavity steel plate;

[0037] At least one cavity steel plate 1102 is provided between the two ear plates on the spliced ​​steel section I11, and a cavity card slot 1202 corresponding to the position of the cavity steel plate 1102 is provided between the two ear plates on the spliced ​​steel section II12; or at least one cavity steel plate 1102 is provided between the two ear plates on the spliced ​​steel section II12, and a cavity card slot 1202 corresponding to the position of the cavity steel plate 1102 is provided between the two ear plates on the spliced ​​steel section I11; the cavity steel plate 1102 and the cavity card slot 1202 The plug-in and cavity-dividing steel plates 1102 can slide along the extension direction of the cavity-dividing slots 1202, and are used to form at least two material-filled cavities at the joint of the two adjacent module units 1 through the cavity-dividing steel plates 1102 when two adjacent module units 1 are connected. The number of the material-filled cavities is the number of the cavity-dividing steel plates 1102 plus one. The material-filled cavities can be filled with cavity-filling materials 110. The cavity-filling materials 110 in each material-filled cavity can be different from each other, the same in two cavities, or completely the same.

[0038] The longitudinal upper and lower ends of the spliced ​​steel section I11 and the spliced ​​steel section II12 close to one end of the inner arc section steel 13 are both provided with stiffening steel plates 14, and the upper and lower ends of the inner arc section steel 13 facing the spliced ​​steel section I11 and the spliced ​​steel section II12 are both provided with stiffening steel plates 14. The stiffening steel plates 14 on the spliced ​​steel section I11 are sequentially connected with the stiffening steel plates 14 of at least one inner arc section steel 13 and the stiffening steel plates 14 of the spliced ​​steel section II12 through the cover plate I15, that is, the cover plate I15 connects and fixes the ends of the two adjacent stiffening steel plates 14 through the through screws 19. The upper and lower ends of the spliced ​​steel section I11, the spliced ​​steel section II12 and the inner arc section steel 13 are both provided with cover plates II16 for longitudinal connection of the steel plate units;

[0039] It also includes an arc-shaped corrugated steel plate, which is extruded and cut into different corrugated sizes according to design requirements, and bolt holes are reserved according to design needs. The arc-shaped corrugated steel plate includes an outer corrugated steel plate 18 and an inner corrugated steel plate 17. Both ends of the outer corrugated steel plate 18 are fixed by bolts to the spliced ​​steel section I11 and the spliced ​​steel section II12, the spliced ​​steel section I11 and the arc inner steel 13, the arc inner steel 13 and the arc inner steel 13 or the arc inner steel 13 and the spliced ​​steel section II12. The length of the outer corrugated steel plate 18 determines which steel section the two ends are fixed to. The outer corrugated steel plate 18 is located outside the module unit 1 and is adjusted according to needs. The entire number of layers; the two ends of the inner corrugated steel plate 17 are respectively fixed to the spliced ​​steel section I11 and the spliced ​​steel section II12, the spliced ​​steel section I11 and the inner arc steel section 13, the inner arc steel section 13 and the inner arc steel section 13 or the inner arc steel section 13 and the spliced ​​steel section II12 by bolts, and the two ends are also fixed to which steel section according to the length of the inner corrugated steel plate 17. The inner corrugated steel plate 17 is located between the inner and outer layers of arc-shaped corrugated steel plates and can be arranged on one side, the inner and outer sides or the inner side of the steel flange of the stiffening steel plate 14. The inner corrugated steel plate 17 is also used to realize the separation material filling cavity, and the material filling cavity can be filled with the cavity filling material 110.

[0040] The inner layer of arc-shaped corrugated steel can be fixed to one end or both ends of the stiffening steel plate 14, and the number of layers is also determined according to needs.

[0041] The number of the stiffening steel plate 14 is at least one, and the number of the stiffening steel plates 14 matches the number of the cavity dividing steel plates 1102 .

[0042] The reinforcing steel plate 14 is cut according to the design size, and its hoop tensile strength should be higher than that of the multi-layer corrugated steel plate. All steel components must have bolt holes reserved according to design requirements and be galvanized for corrosion protection, and all components are prefabricated in the factory.

[0043] When installing the outer corrugated steel plate 18, the multi-layer corrugated steel plates can be connected and reinforced using the through-screws 19. When the through-screws 19 penetrate the corrugated steel plate, the two sides of the through-screws 19 penetrating the corrugated steel plate are limited by nuts.

[0044] Specific implementation scheme 2: Different from specific implementation scheme 1, the spliced ​​steel section Ⅰ11 and the spliced ​​steel section Ⅱ12 can both be galvanized I-beams; the ear plate includes ear plate Ⅰ1101 and ear plate Ⅱ1201, the ear plate Ⅰ1101 is the end of the I-beam bent vertically inward and then bent inward parallel to the end of the I-beam, the ear plate Ⅱ1201 is the end of the I-beam bent vertically inward, bent outward parallel to the end of the I-beam, bent outward vertically to the end of the I-beam and then bent parallel to the end of the I-beam. The ends of the I-beam are bent in parallel, and the last bending point is located inside the end of the I-beam, or the ear plate I 1101 and the ear plate II 1201 are both made of steel plates bent into shape and then welded to the steel flange. The shapes of the ear plate I 1101 and the ear plate II 1201 match, and the ear plate I 1101 can be longitudinally inserted into the ear plate II 1201. The connection between the ear plate I 1101 and the ear plate II 1201 is the same as the mortise and tenon connection, which can increase the sealing of the connection between the two adjacent module units 1.

[0045] Specific implementation plan three: combined Figures 2 to 5 As shown, the present invention provides a modular assembled multi-cavity corrugated steel plate silo, comprising a plurality of module units 1 circumferentially spliced ​​to form an annular granary silo, wherein the plurality of annular granary silo are longitudinally lengthened and sequentially spliced ​​to form an assembled granary silo 3, wherein the end of the assembled granary silo 3 is provided with an upper cover.

[0046] The module unit 1 located at the bottom layer is connected to the embedded steel section of the foundation ring beam 4 at the bottom through the cover plate II16. The two adjacent module units 1 in the circumferential direction are detachably connected through the spliced ​​steel section I11 and the spliced ​​steel section II12, that is, the two ear plates I1101 and the cavity steel plate 1102 on the spliced ​​steel section I11 of one module unit 1 are respectively plugged into the ear plates II1201 and the cavity card slots 1202 of the spliced ​​steel section II12 of the adjacent module unit, or the two ear plates II1201 and the cavity steel plate 1102 on the spliced ​​steel section I11 of one module unit 1 are respectively plugged into the ear plates I1101 and the cavity card slots 1202 of the steel section at the splicing of the adjacent module unit 1; the two adjacent module units 1 in the longitudinal direction are connected through the cover plate II16.

[0047] The other combinations and connection relationships of this embodiment are the same as those of the second embodiment.

[0048] Specific implementation plan four: Different from specific implementation plan three, the cover plate II 16 is fixed at the splicing position of the two longitudinally adjacent spliced ​​steel sections I 11, the two longitudinally adjacent spliced ​​steel sections II 12 and the two longitudinally adjacent arc inner steel sections 13 by through-screws 19; the inner and outer sides of the longitudinal connection are both provided with outer corrugated steel plates 2 to further seal the connection.

[0049] The spliced ​​steel sections I11 and II12, and the ear plates I1101 and II1201 are all connected by through-thread screws 19.

[0050] Specific implementation plan five: combined Figures 1 to 5 As shown, the present invention provides a construction method for a modular assembled multi-cavity corrugated steel plate silo, comprising the following steps:

[0051] S100, assembling the module unit 1, the splicing steel section I 11 and the splicing steel section II 12 are placed at the end of the arc, at least one arc inner section steel 13 is placed inside the arc, and the splicing steel section I 11 and the arc inner section steel 13, the splicing steel section II 12 and the arc inner section steel 13, and the arc inner section steels 13 are spliced ​​together by cross-threading screws 19 and cover plates I 15; the inner corrugated steel plate 17 is installed on the steel section, and then the outer corrugated steel plate 18 is installed on the steel section. At this time, the cross-threading screws 19 all penetrate the inner corrugated steel plate 17 and the outer corrugated steel plate 18 at the corresponding positions, and both sides of the screws penetrating the inner corrugated steel plate 17 or the outer corrugated steel plate 18 are fixed with nuts, and the module unit 1 is assembled according to the required number of steel plate silos;

[0052] S200, on-site construction, transport the module unit 1 manufactured in step S100 to the construction site, first assemble the annular granary silo 3, and connect the module unit 1 with the pre-buried steel section of the foundation ring beam 4 at the bottom through the cover plate II 16 according to the position of the steel plate silo, and then connect the two adjacent module units 1 through the ear plate I 1101 and the ear plate II 1201, the cavity steel plate 1102 and the cavity card slot 1202 and the through-screw 19. When connecting, pay attention to the cavity steel plate 1102 and the cavity card slot 1202 at the node. Positioning; After the assembly of the annular granary tube 3 on the bottom layer is completed, assemble the module units 1 on the upper layer, and use the cover plate II 16 to longitudinally splice the module units 1. After the splicing is completed, a layer of corrugated steel plate 2 is covered on the longitudinal connection area of ​​the two module units 1, and the connection is achieved through the through-screw 19 to ensure the density of the horizontal connection area. Then, assemble the two adjacent module units 1 on the same layer. After completing the assembly of one layer of annular granary tube 3, continue to assemble the annular granary tube of the upper layer until the top of the granary tube 3, and finally add the upper cover.

[0053] The other combinations and connection relationships of this embodiment are the same as those of the fourth embodiment.

[0054] The present invention maintains the advantages of traditional single-layer or single-cavity corrugated steel side walls, such as convenient construction and installation, and excellent durability. By adopting factory prefabrication, multi-cavity segmentation, on-site modular installation, steel reinforcement, and internal filling with thermal insulation materials, the present invention enhances the overall strength, construction convenience, and thermal insulation and moisture retention characteristics of traditional single-layer / single-cavity corrugated steel side walls, thereby improving the scope of application, installability, and disassembly of prefabricated corrugated steel silos. The multi-cavity side walls are achieved by using multiple layers of corrugated steel pipes, and thermal insulation materials, waterproof and moisture-proof materials, etc. are filled inside the cavities to meet the various grain storage requirements such as sealing, insulation, and moisture-proofing required inside the granary. A cross-sectional gradient design in the height direction of the silo is achieved by adjusting the number of corrugated steel plate layers. Furthermore, a modular prefabricated multi-cavity corrugated steel plate silo side wall and a construction method thereof are provided.

[0055] After the inner and outer curved corrugated steel plates are installed, the gaps and bolt holes are filled with thermal insulation foam, with the filling amount controlled according to actual conditions. Based on the grain storage requirements and site environment within the granary, the bottom of the modular unit 1 is first sealed, and then the side wall cavity is filled with a specific material to achieve thermal insulation, waterproofing, and moisture-proofing. The cavity filling material 110 can be thermal insulation and / or waterproofing material, completing the modular unit 1.

[0056] The thickness of the cover plate used for splicing shall not be less than the thickness of the steel web, and the number of bolts used for splicing shall be configured according to design requirements.

[0057] The number of layers of curved corrugated steel plates can be adjusted according to actual needs, combined with Figure 4 As shown, the outer corrugated steel plate 18 is arranged on both the inner and outer sides of the module unit 1, and each side is provided with an outer outer corrugated steel plate 18, an inner outer corrugated steel plate 18, or an inner and outer outer corrugated steel plate 18; the inner corrugated steel plate 17 is not provided or is provided with one layer or two layers of inner and outer corrugated steel plates 17 with opposite arcs. When the circumferential tension caused by the storage material is small, the silo may not be provided with the inner corrugated steel plate 17.

[0058] The outer corrugated steel plate 2 is connected by overlapping bolts, and the overlapping length is not less than half the corrugation period.

[0059] Although the present invention is disclosed as above, the scope of protection disclosed by the present invention is not limited thereto. Those skilled in the art of the present invention may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A modular unit, characterized in that: It comprises a spliced ​​steel section I (11) and a spliced ​​steel section II (12) respectively located at both ends, at least one arc-shaped steel section (13) is provided between the spliced ​​steel section I (11) and the spliced ​​steel section II (12), and an end of the spliced ​​steel section I (11) away from the arc-shaped steel section (13) and an end of the spliced ​​steel section II (12) away from the arc-shaped steel section (13) are respectively provided with ear plates for realizing detachable connection of two adjacent module units (1), the positions of the ear plates correspond to each other, the ear plate on one side can be inserted into the ear plate on the other side and can slide along the extension direction of the ear plate, and the number of ear plates on the spliced ​​steel section I (11) and the spliced ​​steel section II (12) is two, and both are located at the inner and outer ends of the module unit (1); The longitudinal upper and lower ends of the spliced ​​steel section I (11) and the spliced ​​steel section II (12) close to one end of the inner arc steel section (13) are both provided with stiffening steel plates (14), and the upper and lower ends of the inner arc steel section (13) facing the circumferential ends of the spliced ​​steel section I (11) and the spliced ​​steel section II (12) are both provided with stiffening steel plates (14), and the stiffening steel plates (14) on the spliced ​​steel section I (11) are sequentially connected to the stiffening steel plates (14) of at least one inner arc steel section (13) and the stiffening steel plates (14) of the spliced ​​steel section II (12) through the cover plate I (15); and also include an arc-shaped corrugated steel plate, which is arranged inside, outside or in the middle of the module unit (1); At least one cavity steel plate (1102) is provided between the two ear plates on the spliced ​​steel section I (11), and a cavity card slot (1202) corresponding to the position of the cavity steel plate (1102) is provided between the two ear plates on the spliced ​​steel section II (12); or at least one cavity steel plate (1102) is provided between the two ear plates on the spliced ​​steel section II (12), and a cavity card slot (1202) corresponding to the position of the cavity steel plate (1102) is provided between the two ear plates on the spliced ​​steel section I (11); the cavity steel plate (1102) is plugged into the cavity card slot (1202) and the cavity steel plate (1102) can slide along the extension direction of the cavity card slot (1202), so as to separate the splicing portion of the two adjacent module units (1) into at least two material-filled cavities through the cavity steel plate (1102) when the two adjacent module units (1) are connected.

2. A modular unit according to claim 1, characterized in that: The arc-shaped corrugated steel plate comprises an outer corrugated steel plate (18) and an inner corrugated steel plate (17), and the two ends of the outer corrugated steel plate (18) are respectively fixed on the spliced ​​steel section I (11) and the spliced ​​steel section II (12), the spliced ​​steel section I (11) and the arc inner section steel (13), the arc inner section steel (13) and the arc inner section steel (13), or the arc inner section steel (13) and the spliced ​​steel section II (12). On the outside of the module unit (1); the two ends of the inner corrugated steel plate (17) are respectively fixed on the spliced ​​steel section I (11) and the spliced ​​steel section II (12), the spliced ​​steel section I (11) and the inner arc steel section (13), the inner arc steel section (13) and the inner arc steel section (13), or the inner arc steel section (13) and the spliced ​​steel section II (12); the inner corrugated steel plate (17) is arranged on one side or both inner and outer sides of the stiffening steel plate (14).

3. A modular unit according to claim 2, characterized in that: A material filling cavity can be formed between the outer corrugated steel plate (18) and the inner corrugated steel plate (17), and the material filling cavity between the outer corrugated steel plate (18) and the inner corrugated steel plate (17) and the material filling cavity separated by the cavity dividing steel plate (1102) are both used to fill the cavity filling material (110).

4. A modular unit according to claim 3, characterized in that: The ear plate includes ear plate I (1101) and ear plate II (1201). Both ear plate I (1101) and ear plate II (1201) are formed by bending steel plates and then welded to the steel flange. The shapes of ear plate I (1101) and ear plate II (1201) match each other. The ear plate I (1101) can be longitudinally inserted into the ear plate II (1201) and can slide along the extension direction of the ear plate II (1201).

5. A modular assembled multi-cavity corrugated steel plate silo, characterized by: The invention comprises a plurality of module units (1) as described in any one of claims 1 to 4, wherein the module units (1) are circumferentially spliced ​​to form an annular granary tube, and the plurality of annular granary tubes are longitudinally spliced ​​and lengthened in sequence to form an assembled granary tube (3), and an upper cover is provided at the end of the assembled granary tube (3).

6. The modular assembled multi-cavity corrugated steel plate silo according to claim 5, characterized in that: The module unit (1) at the bottom is connected to the embedded steel section of the foundation ring beam (4) at the bottom through the cover plate II (16); the two ear plates I (1101) and the cavity steel plate (1102) on the spliced ​​steel section I (11) of one module unit (1) are respectively plugged into the ear plates II (1201) and the cavity slot (1202) of the spliced ​​steel section II (12) of the adjacent module unit; or the two ear plates II (1201) and the cavity steel plate (1102) on the spliced ​​steel section I (11) of one module unit (1) are respectively plugged into the ear plates I (1101) and the cavity slot (1202) of the spliced ​​steel section of the adjacent module unit (1); and the two adjacent module units (1) in the longitudinal direction are both connected through the cover plate II (16).

7. The modular assembled multi-cavity corrugated steel plate silo according to claim 6, characterized in that: Two longitudinally adjacent spliced ​​steel sections I (11), two longitudinally adjacent spliced ​​steel sections II (12) and two longitudinally adjacent arc inner steel sections (13) are spliced ​​and lengthened by a cover plate II (16); the spliced ​​steel sections I (11) and the spliced ​​steel sections II (12), the ear plate I (1101) and the ear plate II (1201) are connected by a through-screw (19); and the inner and outer sides of the longitudinal connection are provided with outer corrugated steel plates (2).

8. A construction method for modular assembled multi-cavity corrugated steel plate silo according to claim 5, 6 or 7, characterized in that: The following steps are involved: S100, assembling the module unit (1), placing the spliced ​​steel section I (11) and the spliced ​​steel section II (12) at the end of the arc, placing at least one arc inner steel section (13) inside the arc, splicing the spliced ​​steel section I (11) and the arc inner steel section (13), splicing the spliced ​​steel section II (12) and the arc inner steel section (13), and splicing the two arc inner steel sections (13) through the cover plate I (15); installing the inner corrugated steel plate (17) on the steel section, and then installing the outer corrugated steel plate (18) on the steel section, and completing the assembly of the module unit (1) according to the number required by the steel plate silo; S200, assembly of the annular granary tube, transporting the module unit (1) manufactured in step S100 to the construction site, sequentially connecting the module unit (1) to the pre-buried steel section of the foundation ring beam (4) at the bottom through the cover plate II (16) according to the position of the steel plate tube, and then connecting two adjacent module units (1) through the ear plate I (1101) and the ear plate II (1201) and the cavity steel plate (1102) and the cavity card slot (1202). When connecting, attention should be paid to the positioning of the cavity steel plate (1102) and the cavity card slot (1202) at the node; S300, assembling the longitudinal granary tube. After the annular granary tube of the bottom layer is assembled, the annular granary tube of the upper layer is assembled. The module units (1) are longitudinally spliced ​​using the cover plate II (16). After the splicing is completed, a layer of corrugated steel plate (2) is covered on the longitudinal connection area of ​​the two module units (1). After the assembly of one annular granary tube is completed, the annular granary tube of the upper layer is assembled, until the top of the assembled granary tube (3) is reached, and finally the upper cover is added.

9. The construction method of a modular assembled multi-cavity corrugated steel plate silo according to claim 8, characterized in that: In step S100, if it is necessary to fill the cavity with a filling material (110), the bottom of the module unit (1) is first sealed, and then the filling material (110) is filled into the material filling cavity.

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