Modular silo support structure and method of construction thereof

Abstract

The application provides a modular silo support structure and a construction method thereof, comprising a support silo body, a side wall of the support silo body is provided with a roller shutter door and a placing opening, a first air inlet louver and a variable speed exhaust fan are embedded in the lower part of the side wall; further comprising: a clamping windproof mechanism, comprising an annular base steel frame fixed in the placing opening, a support ring fixed on the annular base steel frame, a rotating wheel disc rotatably installed below the support ring through a thrust bearing, a plurality of sliding blocks and a trapezoidal clamping wedge; a plurality of arc cam grooves are radially formed on the disc surface of the rotating wheel disc, each sliding block is slidingly embedded in the corresponding arc cam groove, a support limiting block is fixedly connected to the sliding block, the support limiting block is penetrated into the radial limiting groove in the inner side wall of the support ring, and the trapezoidal clamping wedge is integrally formed on the upper end of the support limiting block; the application can solve the technical problems of feed moldy caused by the ventilation dead zone of the existing feed tower, poor wind resistance stability, and difficulty in considering both rainproof and ventilation at the top.

Description

Technical Field

[0001] This invention relates to the field of specialized building support technology, and more specifically, to a modular silo support structure and its construction method. Background Technology

[0002] Silos are widely used structures for storing bulk materials in agriculture, animal husbandry, and industry. Traditional feed silos are mostly integral welded or assembled corrugated plate types, which have the following problems: Insufficient wind resistance: High-level silos are prone to overturning or shaking in strong winds, especially since the bottom connection to the foundation is simple and lacks an active windproof locking mechanism.

[0003] Poor ventilation and dehumidification: Ordinary silos rely on top exhaust or bottom intake, which can easily lead to condensation, arching, and mold growth in feed.

[0004] Low modularity: It is difficult to adjust the height of the cylinder, and it is impossible to flexibly increase or decrease the number of layers according to actual needs.

[0005] Construction is complex: there is a large amount of on-site welding, the installation period is long, and the assembly of the annular air duct is difficult. Summary of the Invention

[0006] The present invention aims to provide a modular silo support structure to solve the technical problems of poor wind resistance, uneven ventilation, and inconvenient modular assembly of existing silos, and to improve the overall stability and adaptability of the structure.

[0007] To achieve this objective, the present invention provides a modular silo support structure, aiming to solve the problems of existing silo towers, such as weak wind resistance, poor ventilation and drying effect, complex structure, and poor coordination between rain protection and material feeding. The modular silo support structure includes: The support chamber has a roller shutter door and a placement opening on its side wall, and a first air inlet louver and a variable speed exhaust fan are installed in the lower part of its side wall. The windproof clamping mechanism includes an annular base steel frame fixed inside the placement opening, a supporting ring fixed on the annular base steel frame, a rotating disk rotatably mounted below the supporting ring via a thrust bearing, multiple sliders, and trapezoidal clamping wedges. The rotating disk has radially formed arc-shaped cam grooves on its surface. Each slider is slidably embedded in a corresponding arc-shaped cam groove. A supporting limiting block is fixed to the slider. The supporting limiting block passes through a radial limiting groove on the inner wall of the supporting ring, and the trapezoidal clamping wedge is integrally formed at its upper end. A crank-connecting rod mechanism is hinged to the outer edge of the rotating disk and is driven to reciprocate via a telescopic cylinder, thereby synchronously advancing and retreating all the trapezoidal clamping wedges radially.

[0008] This clamping windproof mechanism effectively converts upward wind load into radial clamping force and downward tension force on the supporting base plate. At the same time, it uses the wedge self-locking principle to achieve axial locking, which significantly improves the tower's ability to resist upward pulling force and overturning moment, enabling the tower to withstand extreme weather such as typhoons and tornadoes.

[0009] The tower assembly includes a lower conical section and at least one standard cylindrical section, which are sealed together by a flange. The standard cylindrical section includes an inner cylindrical wall and an outer cylindrical wall, which form an annular sandwich cavity. A continuous spiral guide plate is fixed inside the annular sandwich cavity. The lower conical section is composed of an inner conical shell and an outer conical shell forming an annular conical sandwich. The upper end of the annular conical sandwich is connected to the annular sandwich cavity. The outer conical shell is evenly distributed with second air inlet louvers, and the upper part of the outer cylindrical wall is provided with exhaust holes. The lower conical section passes through the mounting hole of the support chamber. An annular positioning ring is welded to the bottom of its outer conical shell. The annular positioning ring is embedded in the limiting skirt of the support chamber and is clamped with a sealing gasket. The lower conical section is connected and fixed to the clamping windproof mechanism via a support mechanism. An air-guiding top cover assembly is provided on the top of the tower assembly.

[0010] The double-layered sandwich structure of the tower assembly, combined with the spiral guide plate, forms a three-dimensional airflow path of "outer sandwich air intake - spiral guide heating - inner wall ventilation slot jet - top negative pressure exhaust," achieving the technical effects of sufficient heat exchange, orderly airflow organization, and high drying efficiency. Utilizing the tangential air intake at the bottom and the guide plate with a variable spiral angle, a forced spiral upward airflow is formed within the sandwich. This airflow is ejected through the layered, staggered inner wall ventilation slots, forming a continuously rotating, wall-sweeping air curtain in the gaps between the feed particles inside the tower. This completely eliminates dead zones in ventilation, achieving deep drying without dead angles and effectively preventing feed mold growth.

[0011] As a further improvement, the support mechanism includes a support base plate, several support columns erected on the upper surface of the support base plate, and a fixing ring connecting the top of each column; the support base plate is placed on the upper surface of the support ring, and its lower surface has a wedge-shaped clamping groove corresponding to and complementary to the position of the trapezoidal clamping wedge block; when the trapezoidal clamping wedge block extends, it wedges upward into the wedge-shaped clamping groove to press the support base plate tightly onto the support ring; the support base plate has a mounting hole in the center, and the edge of the support base plate is folded upward to form a limiting skirt.

[0012] The support mechanism works in conjunction with the clamping and windproof mechanism to achieve modular connection, which not only ensures installation accuracy, but also improves the bottom sealing and anti-displacement ability through the limiting skirt and sealing gasket.

[0013] As a further improvement, the air-guiding top cover assembly includes an annular air guide hood, which is composed of radially arranged supporting diagonal rods and a rainproof tarpaulin stretched between the diagonal rods. The lower end of the supporting diagonal rods is fixed to the fixed ring. One side of the annular air guide hood is open to form a feeding port, and an arc-shaped rain shield that is hinged to the feeding port and driven to open and close by an electric telescopic cylinder is connected to it. The air-guiding top cover assembly also includes a water-collecting ring fixed to the center of the annular air guide hood, an exhaust pipe passing through the center of the water-collecting ring, and an axial flow exhaust fan connected to the exhaust pipe. A U-shaped support frame is provided on the water-collecting ring, and the arc-shaped rain shield forms a rainwater guiding gap with the U-shaped support frame when closed. The tower body assembly also includes a feeding hopper, which is located below the feeding port and its lower end is connected to the inner wall of the standard cylindrical section to guide feed from the feeding port into the inner wall of the cylinder.

[0014] This exhaust cover assembly integrates functions such as rain protection, airflow guidance, water collection, ventilation, and automatic feed inlet. The arc-shaped rain shield is linked with an electric telescopic cylinder, automatically closing in rainy weather and creating an effective airflow gap to prevent rainwater backflow. At the same time, the axial flow exhaust fan provides negative pressure for ventilation inside the tower, ensuring smooth airflow. When closed, the rain shield and the U-shaped support frame on the water collection ring form a rainwater guiding gap, guiding rainwater to the water collection tank for discharge. When open, it can cooperate with the feeding hopper for smooth feeding and can actively suck dust-laden, humid, and hot air inside the tower through the axial flow exhaust fan, achieving a unified and compatible function of rain protection, ventilation, and feeding in the feeding port area.

[0015] As a further improvement, the spiral angle of the spiral guide plate gradually decreases from bottom to top along the axial direction, and turbulence holes are opened on the plate surface; the inner cylinder wall is provided with multiple sets of horizontal elongated inner wall ventilation slots in layers along the axial direction, each set of inner wall ventilation slots is evenly distributed in a ring, and the inner wall ventilation slots of adjacent layers are staggered; the air inlet axis of the second air inlet louver is at a preset deflection angle with the tangent of the outer cone shell to induce tangential air inlet; the adjacent layers of the inner wall ventilation slots are evenly distributed with a preset staggered angle, so that the airflow ejected from the inner wall ventilation slots of each layer forms a continuously rotating wall-sweeping air curtain in the tower.

[0016] The above structure optimizes airflow organization: tangential air intake and spiral guide plate enhance heat exchange between air and cylinder wall, and layered staggered inner wall ventilation slots generate a rotating wall-mounted air curtain that sweeps the feed surface without dead angles, significantly improving drying uniformity and efficiency.

[0017] As a further improvement, the inclined surface of the trapezoidal clamping wedge has a preset self-locking angle, and the surface of the inclined surface is covered with a serrated anti-slip layer; the cross-section of the wedge-shaped clamping groove is a dovetail groove, which forms an axial self-locking fit with the trapezoidal clamping wedge; the telescopic cylinder is electrically connected to the central controller, and the central controller is configured to drive the cylinder to move according to the signal from the external wind speed sensor, so as to apply additional preload to the support mechanism.

[0018] This design ensures that in the event of strong winds, the central controller can automatically activate the telescopic cylinder to further tighten the support, achieving dynamic wind-resistant pre-tensioning and greatly improving the safety level. When encountering strong winds, the central controller drives the cylinder to feed a second time based on the wind speed sensor signal, applying additional pre-tensioning force to the support mechanism, firmly locking the support base plate onto the support ring, significantly improving the overall anti-overturning capability of the tower under extreme wind loads.

[0019] As a further improvement, cross-stressing reinforcing diagonal braces are intersected between each pair of supporting columns, and each diagonal brace is fitted with a grouting sleeve on its outer side; the grouting sleeve is provided with a grouting hole and an overflow hole, and its interior is filled with filler material that, after curing, forms a combined cross section with the diagonal brace; an adjusting component for adjusting the prestress is provided at the middle intersection of the cross-stressing diagonal brace.

[0020] By using a combination of cross bracing and grouting sleeve cross section technology, the overall rigidity and stability of the support structure are significantly improved, deformation during transportation and installation is reduced, and a permanent high-strength connection is formed after the grouting cures.

[0021] As a further improvement, the water collecting ring has a double-walled hollow structure with an annular water collecting groove on its upper surface. The bottom of the water collecting groove is an inclined surface with a lower outer surface and a higher inner surface. Multiple drainage outlets corresponding to the rainproof tarpaulin are evenly spaced on the outer side of the annular water collecting groove. The arc-shaped rain shield is molded from composite material, and its arc-shaped outer contour curvature is consistent with the annular air guide. A flexible flow guide curtain is fixed to the lower edge of the rain shield. When closed, the flexible flow guide curtain extends to cover the discharge port area. The cable of the electric telescopic cylinder runs along the internal cavity of the supporting inclined rod, and an electric air volume regulating valve is also installed inside the air extraction pipe.

[0022] The above details optimize rainwater drainage and electrical wiring safety, while the electric air volume regulating valve can precisely control the exhaust volume, facilitating coordinated operation with variable speed exhaust fans.

[0023] As a further improvement, the bottom of the lower conical section is connected to a discharge pipe with a rotary unloading valve, and the discharge port of the discharge pipe extends to the outside of the support hopper.

[0024] This design facilitates unloading operations, prevents feed from accumulating at the bottom, and the rotating unloading valve prevents airflow short-circuiting.

[0025] Secondly, the present invention provides a construction method for a modular silo support structure as described in any of the preceding claims, comprising the following steps: (a) Foundation treatment and installation of embedded parts: strengthen the foundation and pour reinforced concrete raft foundation, and embed anchor bolt groups and telescopic cylinder mounting supports. (b) Installation of support chamber: hoist the prefabricated support chamber sections and correct their levelness, install the first air inlet louvers, variable speed exhaust fan and roller shutter door, and apply waterproof seal at the assembly joints; (c) Pre-adjustment of the clamping and windproof mechanism: Install the annular base steel frame and supporting ring in the placement port, install the rotating wheel and thrust bearing, assemble the slider and supporting limit block, adjust the radial movement synchronization error of all trapezoidal clamping wedges, connect the telescopic cylinder and crank connecting rod mechanism and debug. (d) Ground pre-assembly of tower components: The lower cone section is aligned with each standard cylinder section through flanges and pre-tightened to form a continuous and through annular sandwich cavity, and the hopper is installed so that its lower end is connected to the inner cylinder wall. (e) Overall hoisting and verticality correction: The pre-assembled tower components are hoisted vertically so that the lower cone section is inserted into the mounting hole of the support base plate. The annular positioning ring is embedded in the limiting skirt and a sealing gasket is added. The verticality is monitored in real time and a shim is inserted between the support base plate and the annular positioning ring for leveling. (f) Assembly and locking of support mechanism: Install support columns and top fixing rings on the support base plate, install reinforcing diagonal braces crosswise and apply preset prestress, drive telescopic cylinder to extend trapezoidal clamping wedges and wedge into wedge clamping grooves, and lock pressure; (g) Grouting and curing: Grouting material is injected into the grouting sleeve using pressure grouting method, and water retention curing is carried out after pressure stabilization; (h) Integration of the exhaust cover assembly: Install the supporting diagonal rod on the fixed ring and lay the rainproof tarpaulin, install the water collection ring, the exhaust pipe and the axial flow exhaust fan, assemble the arc-shaped rain shield and the electric telescopic cylinder, and ensure that the discharge hopper and the discharge port are aligned, and connect to the environmental control system to complete the joint commissioning.

[0026] This construction method employs modular ground pre-assembly, overall hoisting, wedge-shaped self-locking rapid fixing, and grouting combination reinforcement processes, achieving convenient construction, controllable precision, and reliable connection, making it particularly suitable for rapid installation in the field.

[0027] As a further improvement, in the construction method, in step (e), the gasket is a thin stainless steel gasket with a roughened surface, and the number of gaskets stacked at the leveling position does not exceed the preset maximum number of layers; in step (f), the actual contact rate between the trapezoidal clamping wedge and the wedge clamping groove is ensured to be no less than the preset threshold by colorimetric inspection; in step (g), when the ambient temperature is lower than the predetermined value, the grouting material and grouting sleeve need to be preheated; in step (h), an electric air volume regulating valve is also installed inside the exhaust pipe, and the electric telescopic cylinder, axial flow exhaust fan, variable speed exhaust fan, electric air volume regulating valve and roller shutter are all connected to the environmental control central processor through a bus. The processor receives sensor signals from inside and outside the material tower in real time, and outputs instructions after calculation to realize adaptive linkage adjustment of the ventilation rate, airflow path and discharge port opening and closing inside the material tower.

[0028] The above improvements further enhance the construction quality and intelligence level: roughened gaskets prevent slippage, colorimetric inspection ensures locking reliability, preheating treatment ensures low-temperature grouting strength, and the central controller and sensors work together to automatically adjust ventilation and rain protection actions according to parameters such as wind speed, temperature and humidity, achieving the effect of unattended intelligent environmental control.

[0029] Compared with the prior art, the beneficial effects of the present invention are: the fixed fixation is enhanced by the clamping windproof mechanism to cope with typhoons, the tower body components optimize the airflow distribution to eliminate dead zones, and the wind-exhausting top cover components simultaneously achieve rain protection and ventilation, thereby solving the problems of uneven ventilation, easy overturning and insufficient rain protection. It has the advantages of improving ventilation uniformity to reduce the risk of feed mold, enhancing structural stability to prevent overturning, and optimizing rainproof design to protect feed quality. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure in the first state of the present invention.

[0031] Figure 2 This is a schematic diagram of the structure in the second state of the present invention.

[0032] Figure 3 This is the front view of the present invention.

[0033] Figure 4 This is an exploded view of the present invention.

[0034] Figure 5 This is a top view of the present invention.

[0035] Figure 6 yes Figure 5 A cross-sectional view along the AA direction.

[0036] Figure 7 This is a structural schematic diagram of the third state of the present invention.

[0037] Figure 8This is a schematic diagram of the first state of the clamping windproof mechanism.

[0038] Figure 9 This is a schematic diagram of the second state of the clamping windproof mechanism.

[0039] Figure 10 This is a top view of the windproof clamping mechanism.

[0040] In the diagram: Support silo-1, clamping windproof mechanism-3, support mechanism-4, tower assembly-2, exhaust top cover assembly-5, first air inlet louver-13, variable speed exhaust fan-14, placement port-12, roller shutter door-11, lower cone section-21, standard cylinder section-22, inner cylinder wall-221, outer cylinder wall-222, annular interlayer cavity-223, inner cone shell-211, outer cone shell-212, conical interlayer-214, exhaust hole-225, spiral guide plate-224, second air inlet louver-213, discharge pipe-24, annular base steel frame-31, support ring-32, radial limiting groove-321, thrust bearing-33, rotation Drive wheel disc-34, arc-shaped cam groove-341, slider-35, support limit block-36, trapezoidal clamping wedge block-361, serrated anti-slip layer-362, crank connecting rod mechanism-37, telescopic cylinder-38, support base plate-41, support column-42, fixing ring-43, cross reinforcing diagonal brace-44, grouting sleeve-45, support diagonal rod-511, rainproof tarpaulin-512, annular air guide cover-51, water collection ring-52, air extraction pipe-55, discharge port-513, discharge hopper-23, arc-shaped rain shield-53, U-shaped support frame-521, electric telescopic cylinder-54, annular water collection trough-522, drain outlet-523. Detailed Implementation

[0041] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0042] Please see Figures 1 to 10 As shown, the present invention proposes a modular silo support structure, including a support silo body 1. The side wall of the support silo body 1 is provided with a roller shutter door 11 and a placement opening 12. The lower part of its side wall is fitted with a first air inlet louver 13 and a variable speed exhaust fan 14; it also includes: The windproof clamping mechanism 3 includes an annular base steel frame 31 fixed in the placement opening 12, a support ring 32 fixed on the annular base steel frame 31, a rotating disk 34 rotatably mounted below the support ring 32 via a thrust bearing 33, multiple sliders 35, and trapezoidal clamping wedges 361. The rotating disk 34 has several arc-shaped cam grooves 341 radially opened on its surface. Each slider 35 is slidably embedded in the corresponding arc-shaped cam groove 341. A support limiting block 36 is fixedly connected to the slider 35. The support limiting block 36 passes through the radial limiting groove 321 on the inner side wall of the support ring 32, and the trapezoidal clamping wedge 361 is integrally formed on its upper end. The outer edge of the rotating disk 34 is hinged to a crank connecting rod mechanism 37, which is driven to reciprocate through a telescopic cylinder 38 to drive all trapezoidal clamping wedges 361 to move forward and backward radially in sync. The tower body assembly 2 includes a lower conical section 21 and at least one standard cylindrical section 22, which are sealed together by a flange. The standard cylindrical section 22 includes an inner cylindrical wall 221 and an outer cylindrical wall 222, which form an annular sandwich cavity 223. A continuous spiral guide plate 224 is fixed inside the annular sandwich cavity 223. The lower conical section 21 is composed of an inner conical shell 211 and an outer conical shell 212 forming an annular conical sandwich 214. The upper end of the annular conical sandwich 214 is connected to the annular shell 222. The cavity 223 is connected to the outer conical shell 212, and the outer conical shell 212 is evenly distributed with second air inlet louvers 213. The upper part of the outer cylinder wall 222 is provided with exhaust holes 225. The lower conical section 21 is inserted into the mounting hole, and an annular positioning ring is welded to the bottom of its outer conical shell 212. The annular positioning ring is embedded in the limiting skirt and is clamped with a sealing gasket. The lower conical section 21 is connected and fixed to the clamping windproof mechanism 3 via a support mechanism 4. The top of the tower body assembly 2 is provided with an air duct top cover assembly 5.

[0043] For ease of understanding, the following explains some key terms in this embodiment: The support silo is the bottom compartment that supports the upper structure of the entire modular silo support structure. Its internal space can be used to place related equipment or as an operating area.

[0044] A wind-resistant clamping mechanism is a device used to mechanically lock the main body of the material tower to the foundation structure under extreme weather conditions, thereby enhancing the overall wind resistance stability of the material tower.

[0045] The ring-shaped base steel frame refers to the ring-shaped metal frame fixed inside the placement opening, which serves as the mounting base for the clamping windproof mechanism.

[0046] The support ring is a circular structure fixed above the annular base steel frame, used to support the rotating disc and provide radial limit.

[0047] A rotating disc is a circular disc-shaped component that is rotatably mounted below a supporting ring via a thrust bearing. Its rotation can drive the action of the clamping windproof mechanism.

[0048] A slider is a component that is slidably embedded in the arc-shaped cam groove of a rotating disc, and its radial movement is guided by the cam groove.

[0049] A trapezoidal clamping wedge is a trapezoidal cross-section component that is fixed to a slider and integrally formed. It is used to form a wedge engagement with the support mechanism when extended to achieve a clamping function.

[0050] An arc-shaped cam groove is an arc-shaped groove radially opened on the surface of a rotating wheel, used to guide the radial movement of a slider.

[0051] A support limiting block is a component that is fixed to the slider and passes through the radial limiting groove of the support ring, used to limit the radial movement range of the slider.

[0052] Radial limiting groove refers to a radial groove opened on the inner wall of the support ring, which is used to cooperate with the support limiting block to ensure the correct movement trajectory of the slider.

[0053] A crank-connecting rod mechanism is a mechanical transmission device that converts the rotational motion of a rotating disc into the radial reciprocating motion of a trapezoidal clamping wedge.

[0054] A telescopic cylinder is an actuator that uses air pressure to extend and retract a piston rod. It is used to drive a crank-connecting rod mechanism, which in turn drives the trapezoidal clamping wedge to move radially forward and backward.

[0055] The tower body assembly refers to the main structure of the modular silo support structure, including the lower conical section and the standard cylinder section used for storing feed.

[0056] The lower conical section refers to the conical structure at the bottom of the tower assembly, which is typically used for the collection and export of feed.

[0057] The standard cylindrical section refers to the cylindrical structure at the top of the tower assembly, which can be stacked according to the capacity requirements of the tower.

[0058] A flange is a disc-shaped connector used to connect a lower conical section and a standard cylindrical section, achieving a sealed connection through bolts or other means.

[0059] The inner cylinder wall refers to the inner wall of a standard cylinder section that is in direct contact with the feed.

[0060] The outer cylinder wall refers to the outer wall of a standard cylinder section, which forms an annular interlayer cavity with the inner cylinder wall.

[0061] An annular cavity is a ring-shaped space formed between the inner and outer cylinder walls, which can be used for ventilation or insulation.

[0062] A continuous spiral guide plate is a spiral plate fixed in an annular interlayer cavity to guide airflow along a spiral path.

[0063] An inner conical shell refers to a conical shell inside the lower conical section.

[0064] The outer conical shell refers to the conical shell outside the lower conical section, which forms an annular conical interlayer with the inner conical shell.

[0065] An annular conical interlayer refers to the conical space formed between the inner and outer conical shells, which is connected to the annular interlayer cavity.

[0066] The second air inlet louver refers to the air inlet device evenly distributed on the outer conical shell, used to introduce external air into the annular conical interlayer.

[0067] Vent holes are holes located on the upper part of the outer cylinder wall, used to discharge air from the annular interlayer cavity.

[0068] The mounting hole refers to the hole opened in the center of the support base plate, which is used for the lower conical section of the tower assembly to pass through.

[0069] The annular positioning ring is a ring structure welded to the bottom of the outer cone shell of the lower cone section. It is used to cooperate with the limiting skirt to achieve the positioning of the tower components.

[0070] The limiting skirt refers to the structure formed by folding the edge of the support base plate upwards, which is used to limit the radial movement of the annular positioning ring.

[0071] A sealing gasket is an elastic material sandwiched between an annular positioning ring and a limiting skirt, used to provide sealing and cushioning.

[0072] The support mechanism refers to the structure used to connect the lower cone section and the clamping windproof mechanism, providing support for the tower components.

[0073] The air intake cover assembly refers to the structure installed on the top of the tower assembly, which is used to guide airflow and provide rain protection.

[0074] The modular silo support structure of this embodiment includes a supporting silo body. This supporting silo body can be constructed of steel or concrete, and its side walls can be equipped with roller shutter doors for easy access for personnel or equipment, as well as openings for installing other mechanisms. To achieve ventilation inside the silo, a first air inlet louver can be installed in the lower part of its side wall to allow outside air to enter. Simultaneously, a variable-speed exhaust fan can be configured to exhaust air from the silo, thereby creating air circulation and maintaining a dry and clean internal environment. For example, the first air inlet louver can be fixed or adjustable, and the variable-speed exhaust fan can be an axial flow fan or a centrifugal fan, the speed of which can be adjusted via a manual switch.

[0075] To enhance the stability of the material tower under extreme weather conditions, a locking and windproof mechanism is installed. The core of this mechanism lies in locking the tower body through mechanical linkage. Specifically, a ring-shaped base steel frame is fixed inside the placement opening of the support hopper, serving as the base of the entire mechanism. Above this ring-shaped base steel frame, a support ring is fixed. A rotating disc is mounted below the support ring via a thrust bearing, allowing it to rotate smoothly. Multiple radially shaped arc-shaped cam grooves are formed on the surface of the rotating disc. A slider is slidably embedded in each arc-shaped cam groove. A support limiting block is fixed to the slider, passing through a radial limiting groove on the inner wall of the support ring to ensure the radial movement trajectory of the slider. A trapezoidal locking wedge is integrally formed at the upper end of the support limiting block. A crank-connecting rod mechanism is hinged to the outer edge of the rotating disc, and this mechanism is driven by a telescopic cylinder. When the telescopic cylinder reciprocates, it drives the rotating wheel to rotate via the crank-connecting rod mechanism. This, in turn, through the cooperation of the arc-shaped cam groove and the slider, causes all the trapezoidal locking wedges to synchronously extend or retract radially. For example, the telescopic cylinder can be a hydraulic cylinder or an electric push rod, and the crank-connecting rod mechanism can be a single-crank or double-crank structure.

[0076] The tower assembly is the main part of the modular silo support structure used for storing feed. This assembly consists of a lower conical section and at least one standard silo section, which are sealed together by flanges to ensure structural integrity and internal sealing. The standard silo section is designed as a double-layer structure, including an inner and outer silo wall forming an annular interlayer cavity. A continuous spiral guide plate is fixed within this annular interlayer cavity to guide airflow along a spiral path for uniform ventilation. The lower conical section also employs a double-layer structure, consisting of an inner and outer conical shell forming an annular conical interlayer. The upper end of this conical interlayer communicates with the annular interlayer cavity of the standard silo section. Secondary air inlet louvers are evenly distributed on the outer conical shell to introduce external air into the conical interlayer. Exhaust holes are located on the upper part of the outer silo wall to expel air from the interlayer. The lower conical section is designed to pass through mounting holes in the support mechanism, and an annular positioning ring is welded to the bottom of its outer conical shell. The annular positioning ring is embedded within the limiting skirt of the support mechanism and is fitted with a sealing gasket to achieve precise positioning and a good seal. The lower conical section is connected and fixed to the clamping windproof mechanism via a support mechanism, thereby securely mounting the tower assembly onto the support chamber. The top of the tower assembly is equipped with an exhaust cover assembly to guide airflow and provide rain protection. For example, flange connections can be bolted, and the sealing gasket can be a rubber gasket or a PTFE gasket. The continuous spiral guide plate can be a metal plate or a composite material plate.

[0077] The modular silo support structure of this invention effectively solves the ventilation dead zone problem of traditional feed towers by setting up an annular sandwich cavity with a continuous spiral guide plate and an annular conical sandwich, combined with multiple air inlet louvers and exhaust holes, ensuring uniform ventilation of feed and reducing the risk of mold and spoilage. Meanwhile, the windproof locking mechanism, through the linkage between trapezoidal locking wedges and the support mechanism, provides additional locking force in extreme weather conditions, significantly enhancing the connection rigidity between the tower body and the foundation, effectively avoiding the risk of overturning. Furthermore, the design of the exhaust top cover assembly takes into account both ventilation and rain protection functions, solving the problem of water easily entering the discharge port.

[0078] Please continue reading. Figures 1 to 7 As shown, the present invention further proposes a modular silo support structure, wherein the support mechanism 4 includes a support base plate 41 and a plurality of support columns 42 erected on the upper surface of the support base plate 41 and a fixing ring 43 connecting the top of each column; the support base plate 41 is placed on the upper end face of the support ring 32, and its lower surface is provided with a wedge-shaped clamping groove (not shown) corresponding to and complementary to the position of the trapezoidal clamping wedge 361; when the trapezoidal clamping wedge 361 extends, it wedges upward into the wedge-shaped clamping groove to press the support base plate 41 onto the support ring 32; the support base plate 41 is provided with a mounting hole (not shown) in the center, and the edge of the support base plate 41 is folded upward to form a limiting skirt.

[0079] Specifically, the support mechanism, as a whole, bears the weight of the tower assembly and secures it to the clamping windproof mechanism, ensuring the overall stability of the tower. The support base plate, as the core load-bearing component of the support mechanism, is placed on the upper surface of the support ring and bears the weight of the tower assembly. This base plate is typically made of high-strength steel plate with sufficient thickness and rigidity to withstand the vertical load and horizontal shear force of the tower. Several support columns stand on the upper surface of the support base plate to provide support height and structural stability. These columns are typically made of shaped steel or steel pipes and are firmly connected to the support base plate by welding or bolting. Their number and cross-sectional dimensions are designed according to the overall load and wind resistance requirements of the tower. The fixing ring connects the tops of each support column, forming a closed ring structure, further enhancing the overall rigidity and torsional resistance of the support mechanism and helping to resist deformation caused by external wind loads. The wedge-shaped clamping groove is located on the lower surface of the support base plate, and its shape corresponds to and complements the position of the trapezoidal clamping wedge. These wedge-shaped clamping grooves are typically formed through precision machining, and their dimensions and angles precisely match the trapezoidal clamping wedges, forming a key structure for achieving mechanical clamping. The trapezoidal clamping wedges are part of the clamping and windproof mechanism, wedging upwards into the wedge-shaped clamping grooves when extended. The wedge's beveled design generates a strong vertical force during wedging, thus pressing the support base plate firmly against the support ring. The mounting hole is located in the center of the support base plate, allowing the lower conical section of the tower assembly to pass through. The hole's dimensions are designed to ensure smooth installation of the lower conical section and provide space for subsequent positioning and sealing. The limiting skirt is formed by folding upwards from the edge of the support base plate; its function is to cooperate with the annular positioning ring of the tower assembly, providing radial limiting to prevent horizontal displacement of the tower assembly and providing support for the installation of the sealing gasket.

[0080] Through the above technical solution, the support base plate, support column, and fixing ring of the support mechanism together construct a robust load-bearing platform. The wedge-shaped clamping groove on the lower surface of the support base plate forms a precise mechanical fit with the trapezoidal clamping wedge of the windproof clamping mechanism. When the trapezoidal clamping wedge extends and wedges upward into the wedge-shaped clamping groove, it generates a strong vertical clamping force, firmly pressing the support base plate onto the support ring. This unique wedge-type clamping structure not only provides reliable vertical support, but more importantly, it forms a self-locking connection, effectively resisting the upward pull, lateral shear force, and overturning moment that the tower may generate under strong winds, thus significantly enhancing the overall wind resistance and structural safety of the tower. Simultaneously, the mounting hole in the center of the support base plate and the limiting skirt at the edge, in conjunction with the annular positioning ring and sealing gasket of the tower body components, ensure precise installation and effective sealing of the tower body components, further improving the structural integrity and operational reliability of the tower, and effectively solving the problem of possible displacement or overturning of the tower body under severe weather conditions.

[0081] Please continue reading. Figures 1 to 7 As shown, the present invention further proposes an air-guiding top cover assembly 5, which includes an annular air guide hood 51. The annular air guide hood 51 is composed of radially arranged supporting diagonal rods 511 and a rainproof tarpaulin 512 stretched between the diagonal rods. The lower end of the supporting diagonal rods 511 is fixed to the fixing ring 43. One side of the annular air guide hood 51 is open to form a discharge port 513, and an arc-shaped rain shield 53 driven to open and close by an electric telescopic cylinder 54 is hinged at the discharge port 513. The air-guiding top cover assembly 5 also includes a component fixed to the annular air guide hood 511. The tower assembly 2 includes a central water collection ring 52, an exhaust pipe passing through the center of the water collection ring 52, and an axial flow exhaust fan (not shown) connected to the exhaust pipe 55; the water collection ring 52 is provided with a U-shaped support frame 521, and the arc-shaped rain shield 53 forms a rainwater guiding gap with the U-shaped support frame 521 in the closed state; the tower body assembly 2 also includes a feeding hopper 23, which is located below the feeding port 513, and its lower end is connected to the inner wall of the standard cylindrical section 22 to guide feed from the feeding port into the inner wall 221.

[0082] The exhaust fan top cover assembly is located at the top of the modular silo support structure. Its main functions are to achieve ventilation inside the silo, prevent external rainwater from entering, and provide a convenient loading passage for feed. Its design must comprehensively consider structural strength, wind and rain resistance, and ventilation efficiency. As the main structure of the exhaust fan top cover assembly, the annular design of the air guide hood helps guide airflow and form a stable exhaust path. This air guide hood is typically made of lightweight, high-strength materials to reduce the load on the top of the silo. Supporting diagonal braces extend radially outward from the center and are fixed to a fixed ring, collectively forming the skeleton of the annular air guide hood. Their number and cross-sectional dimensions are designed based on the diameter of the air guide hood and the expected wind load to ensure sufficient structural stability. A rainproof tarpaulin is stretched between the supporting diagonal braces, forming a continuous rainproof surface that effectively prevents rainwater from entering the silo. The tarpaulin material is typically a weather-resistant, tear-resistant, and UV-resistant industrial-grade waterproof fabric, such as PVC-coated fabric or high-strength polyester fiber fabric. The feed inlet is an open area on one side of the annular air guide shroud, serving as the entrance for feed to be loaded from the outside into the feed tower. Its size and location should facilitate the operation of the loading equipment and ensure smooth feed flow. An arc-shaped rain shield is hinged at the feed inlet; its arc design ensures that it harmonizes with the overall contour of the air guide shroud when closed, effectively covering the feed inlet. This rain shield is driven by an electric telescopic cylinder, allowing for remote or automated control of its opening and closing, ensuring the feed inlet is completely closed during non-loading periods to prevent rainwater and foreign objects from entering. The electric telescopic cylinder, acting as the drive device for the arc-shaped rain shield, uses electrical energy to drive the internal piston rod to extend and retract, thus opening and closing the rain shield. Its stroke and thrust must be matched to the size and weight of the rain shield and possess reliable waterproof and dustproof performance. A water-collecting ring is located at the center of the annular air guide shroud, primarily used to collect rainwater flowing from the surface of the air guide shroud and discharge it centrally. Its structural design should ensure effective rainwater collection and prevent water accumulation. The exhaust pipe, passing through the center of the water collection ring, is the main channel for air exhaust from inside the feed tower. Its diameter and material must meet the requirements for exhaust volume and corrosion resistance; metal or high-strength plastic pipes are typically used. An axial flow exhaust fan is installed on or connected to the exhaust pipe, generating axial airflow through rotating blades to expel hot, humid air or dust from inside the feed tower, maintaining a dry and clean environment. Its selection must consider the required air volume, air pressure, and energy consumption. A U-shaped support frame is mounted on the water collection ring. Its shape and position are carefully designed so that when the arc-shaped rain shield is closed, it forms a specific gap with the U-shaped support frame. This gap not only provides support for the rain shield but, more importantly, forms a rainwater guide channel, ensuring that rainwater flowing down from the rain shield is guided to the water collection ring, preventing rainwater from dripping directly into the feed inlet or inside the tower. The feed hopper is located below the feed inlet; its conical or funnel-shaped structure effectively collects and guides the feed entering from the feed inlet to the inner wall of the standard cylindrical section. The inner wall of the feed hopper is usually smooth to reduce feed adhesion and blockage, and to ensure that the feed falls smoothly.

[0083] Through the above technical solution, the annular air guide hood of the exhaust top cover assembly and the rainproof tarpaulin together provide comprehensive rain protection for the top of the feed tower. When feed needs to be loaded, the electric telescopic cylinder drives the arc-shaped rain baffle to open, facilitating the smooth flow of feed through the discharge port and hopper into the inner cylinder wall. In the non-loading state, the arc-shaped rain baffle closes, effectively preventing rainwater and foreign objects from entering the feed tower. At the same time, the water collection ring and the U-shaped support frame work together to form a rainwater guiding gap when the rain baffle is closed, ensuring that rainwater can be effectively collected and discharged, avoiding water accumulation. In addition, the installation of the exhaust pipe and axial flow exhaust fan ensures continuous ventilation inside the feed tower, helping to remove moisture and dust, and maintaining the dryness and freshness of the feed. This design not only solves the rain protection problem during feed loading, but also optimizes the drainage and ventilation functions of the top of the feed tower, improving the overall operational reliability of the modular silo support structure and the quality of feed storage.

[0084] Please continue reading. Figure 6 As shown, this invention proposes a modular silo support structure, wherein the spiral angle of the spiral guide plate 224 gradually decreases from bottom to top along the axial direction, and turbulence holes (not shown) are opened on the plate surface; the inner cylinder wall 221 is provided with multiple sets of horizontal elongated inner wall ventilation slots in layers along the axial direction, each set of inner wall ventilation slots is evenly distributed in a ring, and the inner wall ventilation slots of adjacent layers are staggered; the air inlet axis of the second air inlet louver 213 is at a preset deflection angle with the tangent of the outer cone shell to induce tangential air inlet; the adjacent layers of the inner wall ventilation slots are evenly distributed with a preset staggered angle, so that the airflow ejected from each layer of inner wall ventilation slots forms a continuously rotating wall-sweeping air curtain inside the tower.

[0085] Specifically, the spiral guide plate is disposed within the annular interlayer cavity of the tower assembly, with its spiral angle gradually decreasing from bottom to top along the axial direction. This design aims to optimize the upward velocity distribution of the airflow within the annular interlayer cavity. This design allows the airflow to rise at a relatively fast speed in the lower part of the tower (where the material layer is typically thicker and the humidity is higher), while the upward velocity is relatively slower in the upper part of the tower (where the material layer is thinner and the humidity is lower), thus achieving adaptive adjustment to the ventilation requirements of material layers at different heights. Simultaneously, the spiral guide plate has turbulence holes on its surface. These holes allow some airflow to overflow from the main spiral channel, forming local vortices or branched airflows. This effectively increases the contact area and time between the airflow and the cylinder wall and material layer, further promoting heat and moisture exchange and helping to eliminate airflow short-circuiting or localized ventilation dead zones.

[0086] Furthermore, the inner cylinder wall, serving as the interface directly in contact with the feed, features multiple sets of horizontal, elongated ventilation slots arranged in layers along the axial direction. These ventilation slots are evenly distributed in a ring, ensuring that airflow can uniformly enter the feed area inside the feed tower from all sides. Adjacent layers of ventilation slots are staggered, meaning that upper and lower layers are not located in the same radial position in the circumferential direction. This staggered design effectively prevents airflow from directly penetrating the feed layer and creating a "chimney effect," instead forcing the airflow to diffuse and mix more fully within the feed layer, thereby significantly improving the uniformity and efficiency of ventilation.

[0087] To further optimize the initial airflow introduction, the air inlet axis of the second air inlet louver is deflected at a preset angle to the tangent of the outer conical shell. This design ensures that when external air enters the annular conical interlayer, it does not enter radially directly, but rather with a certain tangential component, thereby inducing the incoming air to form an initial rotating airflow within the annular conical interlayer. This lays the foundation for the subsequent spiraling upward airflow within the annular interlayer cavity, enhances the overall rotational momentum of the airflow, and helps the airflow to be distributed more evenly throughout the interlayer space.

[0088] By evenly distributing the adjacent layers of the aforementioned internal wall ventilation slots at a predetermined staggered angle, the airflow ejected from different levels, upon entering the feed tower, forms a continuous, rotating, and rising airflow curtain near the inner wall of the tower due to its tangential component and staggered arrangement—a wall-sweeping air curtain. This air curtain effectively ventilates the feed near the inner wall of the feed tower, preventing condensation or mold growth on the wall surface, and driving the hot and humid air inside the feed layer upwards.

[0089] Through the above technical solution, the spiral angle of the spiral guide plate gradually decreases from bottom to top along the axial direction. Combined with the turbulence holes on the plate surface, this optimizes the upward velocity and distribution of the airflow within the annular sandwich cavity, better adapting to the ventilation needs of material layers at different heights and increasing the contact efficiency between the airflow and the material layer. Simultaneously, the air inlet axis of the second air inlet louver is at a preset deflection angle to the tangent of the outer conical shell, effectively inducing tangential airflow and providing initial rotational momentum for the entire ventilation system. Furthermore, multiple sets of horizontally elongated inner wall ventilation slots, layered along the axial direction, are designed with uniform annular distribution and staggered arrangement of adjacent layers, causing the airflow injected into the tower to form a continuously rotating, wall-sweeping air curtain. This air curtain effectively prevents airflow short-circuiting, ensuring that the airflow acts uniformly on the inner wall of the tower and the material layer, significantly improving the ventilation uniformity and efficiency inside the tower, effectively preventing the formation of localized hot and humid areas, thereby ensuring the storage quality of the feed and reducing energy consumption.

[0090] Please continue reading. Figures 8 to 10As shown, the present invention further proposes that the inclined surface of the trapezoidal clamping wedge 361 has a preset self-locking angle, and the inclined surface is covered with a serrated anti-slip layer; the cross-section of the wedge-shaped clamping groove is a dovetail groove, which forms an axial self-locking fit with the trapezoidal clamping wedge 361; the telescopic cylinder 38 is electrically connected to the central controller, and the central controller is configured to drive the cylinder to move according to the signal of the external wind speed sensor, so as to apply additional preload to the support mechanism.

[0091] Specifically, the trapezoidal locking wedge is the core component of the locking and windproof mechanism, and its inclined surface is designed with a preset self-locking angle. This self-locking angle means that when the wedge's inclined surface engages with the wedge-shaped locking groove, without external driving force, the wedge itself can generate a component force, making it difficult for it to disengage from the wedge-shaped locking groove, thus achieving a reliable self-locking effect. This design effectively prevents the locking mechanism from accidentally loosening under vibration or impact, enhancing the stability of the connection. To further improve the self-locking effect and anti-slip capability, the inclined surface of the trapezoidal locking wedge is also covered with a serrated anti-slip layer. This anti-slip layer further resists relative sliding by increasing the friction coefficient of the contact surface and providing mechanical interlocking, ensuring the stability of the locking state under various working conditions. The serrated anti-slip layer can be achieved by machining a fine serrated texture on the inclined surface of the wedge, or by attaching a material with a high coefficient of friction through spraying, welding, or other methods.

[0092] Simultaneously, the wedge-shaped clamping groove that mates with the trapezoidal clamping wedge is designed with a dovetail groove cross-section. A dovetail groove is a groove with a special geometry, its side walls sloping inwards to precisely match the shape of the trapezoidal clamping wedge. When the trapezoidal clamping wedge is inserted into the dovetail groove, it not only generates a strong clamping force radially but also forms a mechanical interlock axially (i.e., perpendicular to the wedge insertion direction). This axial self-locking fit makes it difficult for the wedge to dislodge from the groove even when subjected to a force perpendicular to the insertion direction, thus providing extremely high pull-out resistance and significantly improving the structural stability of the entire support mechanism. Precise machining of the dovetail groove is key to achieving this fit, requiring that its dimensions and angles perfectly match the trapezoidal clamping wedge.

[0093] Furthermore, to achieve intelligent adjustment and adaptive control of the clamping force, the telescopic cylinder is electrically connected to the central controller. As an actuator, the telescopic cylinder drives the crank-connecting rod mechanism, which in turn drives the trapezoidal clamping wedge to move radially forward and backward, achieving clamping or releasing actions. The central controller, as the intelligent control core of the entire system, is responsible for receiving real-time signals from external wind speed sensors and making judgments and processing based on preset control logic. When the external wind speed sensor detects that the wind speed reaches or exceeds a preset threshold, the central controller immediately issues a command to drive the telescopic cylinder, causing the trapezoidal clamping wedge to further penetrate into the wedge-shaped clamping groove, thereby applying additional preload to the support mechanism. This additional preload effectively resists the extra load and vibration brought by strong winds, ensuring the structural safety and stability of the tower under harsh weather conditions. The central controller can be a programmable logic controller (PLC) or a microcontroller (MCU), which is programmed to acquire and process wind speed signals and precisely control the cylinder.

[0094] Through the above technical solution, the trapezoidal clamping wedge block has a preset self-locking angle on its inclined surface and is covered with a serrated anti-slip layer. Combined with the dovetail groove cross-section of the wedge-shaped clamping groove, the clamping mechanism can form a stable self-locking fit in both the radial and axial directions. This significantly enhances the reliability and anti-loosening ability of the clamping connection. Even when the tower is subjected to vibration or impact, it can effectively prevent relative displacement between the support mechanism and the clamping windproof mechanism, thereby ensuring the overall structural stability of the tower. In addition, by electrically connecting the telescopic cylinder to the central controller and intelligently driving the cylinder to apply additional pre-tightening force based on the external wind speed sensor signal, adaptive adjustment of the clamping force is achieved. When the external wind speed increases, the system can automatically increase the clamping force, effectively resisting the additional load brought by strong winds, avoiding the lag of manual intervention, and further improving the safety and operational reliability of the tower under severe weather conditions. This intelligent pre-tightening force adjustment mechanism not only improves the wind resistance of the tower but also extends the service life of the clamping mechanism and reduces maintenance costs.

[0095] Please continue reading. Figures 1 to 7 As shown, the present invention further proposes to provide cross-stressed reinforcing diagonal braces 44 that are cross-arranged between each pair of supporting columns 42, and each diagonal brace is fitted with a grouting sleeve 45 on its outer side; the grouting sleeve 45 is provided with a grouting hole and an overflow hole, and is filled with a filler material that, after curing, forms a combined cross section with the diagonal brace; an adjusting member for adjusting the prestress is provided at the cross node in the middle of the cross-reinforcing diagonal brace 44.

[0096] Specifically, to enhance the overall structural stability of the feed tower, particularly under lateral loads, this invention introduces cross-reinforcing diagonal braces between the supporting columns. These braces are typically configured in an X- or V-shape, forming stable triangular units to effectively resist horizontal shear forces, thereby significantly improving the lateral stiffness of the support structure. Furthermore, these braces are designed to be prestressed, meaning that initial tension can be applied to them externally during installation or operation. This prestressing ensures that the braces remain under stress under various load conditions, preventing relaxation or buckling that may occur under compression, thus improving the structure's response speed and resistance to deformation.

[0097] To further optimize the performance and durability of the diagonal braces, each diagonal brace is fitted with a grouting sleeve on its outer surface. This grouting sleeve is a hollow structure designed to create a closed space outside the diagonal brace. After installation, filler material is injected into the sleeve through grouting holes. This filler material is typically a high-strength, non-shrinkage specialty cement-based grout or epoxy resin mortar. After curing, the filler material bonds tightly with the diagonal brace, forming a composite section with higher stiffness and load-bearing capacity. This composite section not only effectively transfers loads but also provides additional corrosion protection for the diagonal brace, extending its service life. The grouting sleeve also has overflow holes to expel air and excess grout during the grouting process, ensuring a dense, void-free filling.

[0098] To precisely control and maintain the prestress level of the diagonal bracing, this invention includes an adjusting component at the midpoint of the cross-bracing joint for adjusting the prestress. This adjusting component can be a threaded tie rod, tensioner, hydraulic jack, or mechanical wedge, among other devices. By operating these adjusting components, the tension of the diagonal bracing can be easily fine-tuned to compensate for prestress losses caused by material creep, temperature changes, or foundation settlement, ensuring the structure is always in optimal stress condition.

[0099] Through the above technical solutions, the support structure of the silo achieves significantly enhanced lateral stiffness and stability. The cross-reinforced diagonal bracing effectively resists lateral loads such as strong winds and earthquakes, preventing excessive lateral displacement and vibration of the silo. The application of prestress allows the diagonal bracing to actively participate in load-bearing in any load direction, improving the overall overturning and deformation resistance of the structure. The combined section formed by the grouting sleeve and the filler not only enhances the strength and stiffness of the diagonal bracing but also provides excellent durability and corrosion resistance. The adjustable components ensure the long-term controllability and maintainability of the prestressed state, thereby ensuring the long-term safe and stable operation of the modular silo support structure under various complex environmental conditions, significantly improving the reliability and service life of the silo.

[0100] Please continue reading. Figures 1 to 7As shown, this invention proposes a modular silo support structure, whose air intake cover assembly 5 includes an annular air guide hood 51, a supporting diagonal rod 511, a rainproof tarpaulin 512, a discharge port 513, an arc-shaped rain shield 53, an electric telescopic cylinder 54, a water collection ring 52, an exhaust pipe 55, and an axial flow exhaust fan. The arc-shaped rain shield 53, in its closed state, forms a rainwater guiding gap with the U-shaped support frame 521. However, in practical applications, especially under severe weather conditions, the air intake cover assembly 5 still has room for improvement in terms of the thoroughness of rainwater collection, the sealing of the discharge port area, the protection of internal cables, and the fine adjustment of ventilation volume. This may lead to problems such as rainwater infiltration, cable damage, or poor ventilation efficiency.

[0101] To address the aforementioned issues, this invention further proposes an optimized solution for the air-guiding top cover assembly. Specifically, the water-collecting ring is designed as a double-walled hollow structure, with an annular water-collecting groove 522 on its upper surface. Multiple drainage outlets 523, corresponding to the rainproof tarpaulin 512, are equidistantly located on the outer side of the annular water-collecting groove 522. The arc-shaped rain shield is molded from composite materials, with its arc-shaped outer contour curvature matching that of the annular air guide hood. A flexible flow guide curtain is fixed along the lower edge of the rain shield, extending to cover the discharge port area when closed. Furthermore, the cable of the electric telescopic cylinder runs along the internal cavity of the supporting inclined rod, and an electric airflow regulating valve is installed inside the exhaust pipe.

[0102] The water-collecting ring features a double-walled hollow structure, which not only enhances its structural strength and stability but also provides a degree of insulation, preventing internal condensation or external heat transfer. Its upper surface has an annular water-collecting trough for efficiently collecting rainwater flowing from the annular air guide. The bottom of the trough is designed with a sloping surface, lower on the outside and higher on the inside, ensuring that the collected rainwater flows smoothly inwards or to the designated drain outlet, preventing rainwater accumulation within the trough and effectively preventing pollution and corrosion problems caused by rainwater overflow or prolonged retention.

[0103] The arc-shaped rain shield is molded from a composite material, a material choice that gives it lightweight, high strength, corrosion resistance, and precision molding properties. Its arc-shaped outer contour curvature matches the annular air guide, ensuring a tight fit between the rain shield and the annular air guide when closed, minimizing gaps. Furthermore, a flexible flow guide curtain is fixed to the lower edge of the rain shield. This flexible flow guide curtain extends downwards when the arc-shaped rain shield is closed, effectively covering the feed inlet area and forming an additional flexible sealing barrier. This reliably prevents rainwater from entering the feed tower through the feed inlet even in extreme weather conditions, protecting the feed from moisture.

[0104] The cable of the electric telescopic cylinder is routed along the internal cavity of the supporting diagonal rod. This design cleverly hides and protects the cable, which would otherwise be exposed to the external environment. By routing the cable through the internal cavity, it avoids wind, sun, rain, and mechanical damage, significantly improving the cable's service life and the system's operational reliability. It also makes the overall appearance of the air intake cover assembly cleaner and more aesthetically pleasing.

[0105] The exhaust pipe is also equipped with an electric air volume regulating valve, which can precisely adjust the cross-sectional area of ​​the airflow channel inside the exhaust pipe through electric drive. This means that the exhaust volume can be precisely and dynamically controlled according to the actual environmental parameters inside the feed tower (such as humidity, temperature, feed type, etc.) or external weather conditions, rather than simple on / off control, thereby achieving a more optimized ventilation effect and a more energy-efficient operation mode.

[0106] Through the above technical solutions, the double-walled hollow water-collecting ring and its inclined bottom water-collecting trough can more thoroughly collect and discharge rainwater, effectively preventing rainwater accumulation and overflow. The combination of the composite material molded arc-shaped rain shield and the flexible guide curtain provides more reliable and comprehensive sealing protection for the feed inlet area, significantly reducing the risk of rainwater seeping into the feed tower. The cable of the electric telescopic cylinder is routed through the internal cavity of the supporting diagonal rod, effectively protecting the cable from environmental corrosion and physical damage, improving the system's safety and durability. At the same time, the electric air volume regulating valve installed inside the exhaust pipe allows for precise and intelligent adjustment of the ventilation volume inside the feed tower, thereby better controlling the temperature and humidity environment inside the feed tower, ensuring the storage quality of feed, and further optimizing energy consumption. These improvements collectively enhance the operational stability, reliability, and intelligence level of the modular silo support structure under various environmental conditions.

[0107] Please continue reading. Figures 1 to 7 As shown, the present invention further proposes that, based on the above-mentioned modular silo support structure, the bottom of the lower conical section 21 is connected to a discharge pipe 24 with a rotary unloading valve, and the discharge port of the discharge pipe 24 extends to the outside of the support silo body 1.

[0108] Specifically, the discharge pipe is a channel used to guide feed out of the feed tower. It is typically a cylindrical or conical pipe, and its size and shape can be designed according to the required feed flow rate and the overall structure of the feed tower. The discharge pipe is preferably made of wear-resistant and corrosion-resistant materials, such as stainless steel or high-strength engineering plastics, to ensure its reliability during long-term use. The rotary discharge valve is a commonly used bulk material conveying device. Its core function is to achieve quantitative or continuous discharge of materials while simultaneously providing an airlock effect to effectively prevent external air or contaminants from entering the feed tower. This valve typically consists of a rotor with multiple blades, a housing, and a corresponding drive unit. When the rotor rotates under drive, its blades carry the feed from the feed tower from the inlet to the outlet segment by segment, thus achieving continuous or intermittent discharge of the feed. The rotational speed of the rotary discharge valve can be adjusted according to actual needs to achieve precise control of the feed discharge volume. Its excellent sealing performance is crucial for maintaining the stability of the internal environment of the feed tower and preventing the feed from becoming damp or contaminated. The discharge port of the discharge pipe extends to the outside of the support silo, meaning that the end of the discharge pipe, where the feed is finally discharged from the feed tower, is located outside the support silo structure. This design allows the feed to be directly unloaded into external transport vehicles, packaging equipment, or feeding devices without secondary transfer inside the support silo.

[0109] By employing the aforementioned technical solution, a discharge pipe with a rotary discharge valve is connected to the bottom of the lower conical section, extending the discharge outlet of the pipe to the outside of the support silo. This invention enables precise control and efficient management of the feed unloading process. The rotary discharge valve not only adjusts the discharge speed and flow rate of the feed according to actual needs, ensuring quantitative or continuous stable unloading, but its inherent airlock function effectively prevents external air, moisture, or contaminants from entering the feed tower, thereby protecting the quality of the feed and the storage environment. The design of extending the discharge pipe outlet to the outside of the support silo greatly simplifies the feed collection and transfer process, avoiding secondary handling of the feed inside the support silo and reducing the risk of feed loss and cross-contamination. This configuration allows feed to be directly loaded into transport vehicles or feeding equipment, improving operational efficiency and facilitating the integration of the feed tower with automated feeding systems, ensuring that the entire process from storage to use is clean, efficient, and controllable.

[0110] In constructing the aforementioned modular silo support structure, its complexity, comprising multiple interconnected subsystems such as the support silo body, the clamping and windproof mechanism, the tower components, and the draft duct top cover components, presents a significant challenge in achieving the expected performance of the silo during on-site construction. This is due to the need for precise alignment, sealing, and functional integration between these components, ensuring installation accuracy, structural stability, connection reliability, and coordinated operation of all functional modules. Particularly during high-altitude operations and the hoisting of large components, high standards for standardized and meticulous management of the construction process are crucial to prevent uneven structural stress, sealing failure, or functional malfunctions caused by installation deviations or improper connections.

[0111] To address this issue, the present invention proposes a construction method for a modular silo support structure, comprising the following steps: First, foundation treatment and installation of embedded parts are carried out. This step aims to provide a stable load-bearing foundation and precise installation reference for the entire modular silo support structure. Specifically, the foundation is reinforced, for example through replacement, dynamic compaction, or pile foundations, to ensure that the foundation bearing capacity meets the load requirements of the silo and effectively resists wind loads and seismic forces. The pouring of reinforced concrete raft foundations further distributes the load and improves overall stability. Embedded anchor bolt sets are used for fixing the subsequent support silo body and the windproof clamping mechanism; their position and elevation must be strictly controlled to ensure precise alignment with the superstructure. The pre-embedded mounting brackets for the telescopic cylinders provide reliable installation points for the drive unit of the windproof clamping mechanism.

[0112] Next, the support silo is installed. This step marks the beginning of the main structure installation of the feed tower. The prefabricated support silo sections are hoisted, and their levelness is corrected through precise measurement and adjustment to ensure the verticality and stability of the entire feed tower. The first air inlet louvers, variable-speed exhaust fan, and roller shutter door are installed; these are important functional components of the support silo and must be installed promptly after hoisting, followed by a preliminary functional check. Waterproof sealants, such as weather-resistant sealant or waterproof gaskets, are applied to the assembly joints to prevent rainwater infiltration and protect the internal equipment and feed.

[0113] Next, the clamping and windproof mechanism is pre-adjusted. This step aims to ensure the accuracy and reliability of the clamping and windproof mechanism. An annular base steel frame and supporting ring are installed inside the placement opening to provide an installation interface for subsequent components. The rotating wheel and thrust bearing are installed; the thrust bearing ensures smooth, low-friction rotation of the rotating wheel. The slider and support limit block are assembled and slidably embedded in the arc-shaped cam groove. The support limit block passes through the radial limit groove, ensuring that the radial movement of the slider is restricted and stable. The radial movement synchronization error of all trapezoidal clamping wedges is adjusted, for example, by adjusting the length or installation position of the crank-connecting rod mechanism, to ensure that all wedges can move radially forward and backward synchronously and uniformly under the drive of the telescopic cylinder, thereby achieving uniform clamping of the support base plate. The telescopic cylinder and crank-connecting rod mechanism are connected and debugged to verify the smoothness and reliability of their operation.

[0114] Subsequently, the tower components are pre-assembled on the ground. This step, by pre-assembling some components on the ground, significantly improves construction efficiency and quality. The lower cone section is aligned with each standard cylinder section via flanges, ensuring the flatness and alignment of the connection surfaces. Pre-tightening is then applied, for example using high-strength bolts and torque wrenches, to ensure tightness and sealing. This creates a continuous, through-hole annular cavity, providing a channel for the subsequent ventilation system. Simultaneously, the feed hopper is installed, ensuring its lower end is connected to the inner cylinder wall, preparing for smooth feed discharge. Ground pre-assembly helps reduce high-altitude work and improves welding and sealing quality.

[0115] Furthermore, overall hoisting and verticality correction are performed. This is a crucial step in the construction process, requiring high precision and safety. The pre-assembled tower components are vertically hoisted, for example using a large crawler crane or truck crane. Through precise command and operation, the lower cone section is inserted into the mounting holes of the support base plate. A ring-shaped positioning ring is embedded in the limiting skirt and a sealing gasket is added to ensure accurate positioning and reliable sealing between the tower and the support base plate. Verticality is monitored in real time, for example using a laser plumb line or total station, and shims are inserted between the support base plate and the ring-shaped positioning ring for leveling to eliminate installation errors and ensure that the verticality of the tower components meets design requirements, thereby guaranteeing uniform structural stress and long-term stability.

[0116] Next, the support mechanism is assembled and locked. This step aims to complete the final fixation and reinforcement of the main structure of the material tower. Support columns and a top fixing ring are installed on the support base plate, forming the skeleton of the material tower assembly. Cross-bracing is installed and pre-stressed, for example, by tensioning bolts or hydraulic jacks, to enhance the overall rigidity and wind resistance of the support mechanism and improve structural stability. The telescopic cylinder is driven to extend the trapezoidal clamping wedge and wedge it into the wedge-shaped clamping groove, firmly pressing the support base plate onto the support ring, thereby reliably connecting the tower assembly to the clamping windproof mechanism. The locking pressure is then applied to ensure the stability and reliability of the clamped state.

[0117] Based on this, grouting and curing are performed. This step is used to further enhance the strength and integrity of the support structure. Grouting material, such as high-strength non-shrink grout, is injected into the grouting sleeve using pressure grouting to ensure that the grout fully fills the internal voids of the sleeve and tightly integrates with the cross-bracing. After pressure stabilization, water-retaining curing is performed, such as covering with a damp cloth or spraying a curing agent, to promote full hydration and strength development of the grout, ultimately forming a filler that creates a composite cross-section with the bracing, significantly improving the load-bearing capacity and bending stiffness of the bracing.

[0118] Finally, the exhaust fan top cover assembly is integrated. This is the final stage of the feed tower construction, involving the integration of ventilation and rain protection functions. Supporting diagonal braces are installed on the fixed ring, and a rainproof tarpaulin is laid to form the main structure of the exhaust fan top cover assembly, providing rain protection and airflow guidance. The water collection ring, exhaust pipe, and axial flow exhaust fan are installed; these are core components of the ventilation and drainage system, and their installation positions must be accurate and connections secure. The arc-shaped rain shield and electric telescopic cylinder are assembled and functionally tested to ensure smooth opening and closing of the rain shield. The feed hopper and feed inlet are aligned to ensure smooth feed discharge. The environmental control system is then connected for integrated testing. All electric and sensor components (such as the electric telescopic cylinder, axial flow exhaust fan, variable speed exhaust fan, electric air volume regulating valve, and roller shutter) are connected to the central controller for overall functional testing and parameter calibration, achieving intelligent control of the feed tower's internal environment.

[0119] Through the above construction methods, this invention can systematically and efficiently complete the construction of modular silo support structures, effectively solving the problems of precision, stability, and functional integration that may be encountered in the on-site construction of complex structures. Specifically, through foundation treatment and the installation of embedded parts, a solid and reliable bearing foundation and precise installation benchmark are provided for the material tower, avoiding the cumulative errors of subsequent structural installation. The pre-adjustment of the support silo installation and the clamping windproof mechanism ensures the levelness of the lower structure of the material tower and the precise synchronization of the clamping mechanism, laying the foundation for the stable connection of the upper tower body. The ground pre-assembly of the tower body components significantly reduces the risks and difficulties of high-altitude operations, improves the sealing quality of flange connections and annular interlayer cavities, and ensures the integrity of the ventilation system. The overall hoisting and verticality correction steps, through real-time monitoring and precise leveling, ensure the verticality of the entire tower body component, thereby ensuring uniform stress on the structure and avoiding structural deformation and safety hazards caused by eccentric loading. The assembly, prestressing application, clamping and locking of the support mechanism, as well as the subsequent grouting and curing, greatly enhance the overall rigidity and wind resistance of the material tower, ensuring its long-term stability in harsh environments. Ultimately, the integration of the exhaust fan top cover assembly and the joint commissioning of the environmental control system enabled precise control and intelligent linkage of the feed tower's ventilation, rain protection, and feeding functions, ensuring the feed storage environment and feeding efficiency, thereby significantly improving the overall performance and service life of the modular silo support structure.

[0120] The present invention further proposes that in the construction method, in step (e), the gasket is a thin stainless steel gasket with a roughened surface, and the number of gaskets stacked at the leveling position does not exceed the preset maximum number of layers; in step (f), the actual contact rate between the trapezoidal clamping wedge and the wedge clamping groove is ensured to be not lower than the preset threshold by colorimetric inspection; in step (g), when the ambient temperature is lower than the predetermined value, the grouting material and the grouting sleeve need to be preheated; in step (h), the exhaust pipe is also equipped with an electric air volume regulating valve, and the electric telescopic cylinder, axial flow exhaust fan, variable speed exhaust fan, electric air volume regulating valve and roller shutter are all connected to the environmental control central processor through a bus. The processor receives sensor signals from inside and outside the material tower in real time, and outputs instructions after calculation to realize the adaptive linkage adjustment of the ventilation rate, airflow path and discharge port opening and closing inside the material tower.

[0121] Specifically, in step (e) of the overall hoisting and verticality correction of the tower components, to ensure the accuracy and long-term stability of the tower installation, the shims are specifically limited to thin stainless steel shims with a roughened surface. Stainless steel provides the shims with excellent corrosion resistance and mechanical strength, while the roughening treatment significantly increases the friction between the shims and the contact surface, effectively preventing displacement of the shims under stress or vibration, thereby ensuring the structural stability after leveling. Simultaneously, the number of shims stacked at the leveling position is limited to no more than a preset maximum number of layers. This is to avoid localized stress concentration, reduced structural stiffness, or potential shear failure risks caused by excessive shim stacking, ensuring the structural reliability of the leveling scheme.

[0122] In step (f) of assembling and locking the support mechanism, to ensure effective engagement and reliable locking between the trapezoidal clamping wedge and the wedge-shaped clamping groove, the actual contact rate is ensured to be no less than a preset threshold through a colorimetric test. The colorimetric test is a direct and effective method for detecting contact surfaces. A specific dye is applied to the contact surface, and then the surfaces are pressed together; the actual contact area is assessed based on the area of ​​dye transfer. This measure aims to avoid poor local contact caused by processing errors or installation deviations, thereby ensuring that the clamping mechanism can fully transmit loads, effectively resist external wind loads and other forces, and improve the overall wind resistance and structural safety of the pylon.

[0123] In step (g) of grouting and curing, to address the challenges of construction in low-temperature environments, preheating of the grouting material and grouting sleeve is required when the ambient temperature is below a predetermined value. The curing process of the grouting material is temperature-sensitive; low temperatures may lead to slow curing reaction, insufficient strength development, or even incomplete curing. Preheating the grouting material and grouting sleeve ensures that the grouting material cures under suitable temperature conditions, thereby guaranteeing that the grouting layer achieves the designed strength and durability, forming a reliable composite section with the diagonal bracing, and further enhancing the overall rigidity and stability of the grout tower.

[0124] In step (h) of integrating the exhaust top cover assembly, an electric airflow regulating valve is also installed inside the exhaust pipe. This electric airflow regulating valve enables precise and automated control of the airflow within the exhaust pipe. By adjusting the valve opening, the exhaust volume and exhaust resistance can be flexibly adjusted, thereby precisely controlling the ventilation rate and negative pressure state inside the material tower, providing an execution basis for subsequent intelligent linkage regulation.

[0125] Furthermore, the electric telescopic cylinder, axial flow exhaust fan, variable speed exhaust fan, electric air volume regulating valve, and roller shutter door are all connected to the environmental control central processor via a bus. This bus connection method constructs a centralized intelligent control network, enabling each actuator to efficiently communicate data and receive commands from the central processor. The environmental control central processor receives real-time sensor signals from inside and outside the feed tower, such as temperature, humidity, wind speed, and material level, and performs complex calculations and logical judgments based on this real-time data, thereby outputting precise commands to achieve adaptive linkage adjustment of the ventilation rate, airflow path, and feed outlet opening and closing within the feed tower. This means that the system can intelligently adjust ventilation, exhaust, and feed discharging operations according to the actual environment and operational needs, without manual intervention, thereby optimizing the operating efficiency of the feed tower and the feed storage environment.

[0126] By installing an electric airflow regulating valve inside the exhaust pipe and connecting key actuators such as the electric telescopic cylinder, axial flow exhaust fan, variable speed exhaust fan, electric airflow regulating valve, and roller shutter door to the environmental control central processor via a bus, adaptive and linked adjustment of the ventilation rate, airflow path, and discharge port opening and closing within the feed tower is achieved. This intelligent control system can respond in real time to changes in the internal and external environment of the feed tower, automatically optimize the ventilation effect, and precisely control the feeding process. This not only effectively ensures the storage quality of the feed and reduces energy consumption, but also significantly improves the automation level and operational efficiency of the feed tower, reducing manual intervention and making the feed tower's operation more stable, reliable, and economical.

[0127] Example

[0128] This embodiment provides a modular silo support structure. The silo is mainly composed of five parts from bottom to top: a support silo body 1, a clamping windproof mechanism 3, a support mechanism 4, a silo body assembly 2, and an air duct top cover assembly 5, and is uniformly controlled by an environmental control system.

[0129] The supporting silo 1 serves as the base and enclosure structure of the entire material tower. Its lower side wall is fitted with first air inlet louvers 13 and variable speed exhaust fans 14 at intervals to regulate the basic temperature and humidity inside the silo and to assist in tower ventilation when necessary. The placement opening 12 on the side wall is used to install the clamping windproof mechanism 3, while the roller shutter door 11 facilitates daily maintenance.

[0130] The tower assembly 2 is the core of feed storage and ventilation drying. It is formed by connecting a lower conical section 21 and at least one standard cylindrical section 22 at the top via flange sealing. The standard cylindrical section 22 is a double-layer structure with inner and outer cylindrical walls fitting together, forming an annular interlayer cavity 223 between the inner and outer cylindrical walls 221 and 222. The lower conical section 21 is formed by an annular conical interlayer 214 enclosed by an inner conical shell 211 and an outer conical shell 212, the upper end of which communicates with the annular interlayer cavity 223. Thus, a fully continuous airflow channel from bottom to top is formed from the second air inlet louvers 213 evenly distributed on the outer conical shell 212 to the exhaust holes 225 at the top of the outer cylindrical wall 222.

[0131] To address the ventilation dead zone issue, a spiral guide plate 224 is fixed within the annular interlayer cavity 223. The spiral angle of this guide plate gradually decreases axially from bottom to top, with a larger angle near the lower air inlet area, guiding air tangentially with less wind resistance; the angle is smaller near the upper exhaust area, facilitating sufficient rotation and ascent of the airflow within the interlayer and extending the heat exchange path. Furthermore, an array of turbulence holes (not shown) are formed on the surface of the spiral guide plate 224 to further turbulent the airflow and enhance convective heat transfer. More importantly, the inner cylinder wall 221 has multiple sets of horizontal elongated inner wall ventilation slots layered axially. Each set of inner wall ventilation slots is evenly distributed in an annular shape, and the inner wall ventilation slots of adjacent layers are arranged at a predetermined staggered angle. This structure allows the spiral airflow within the interlayer to be distributedly injected into the feed gaps within the tower through the inner wall ventilation slots of each layer, with the jets from each layer interconnecting to form a continuously rotating, wall-sweeping air curtain within the tower. This air curtain can penetrate the tiny gaps between feed particles without any blind spots, carrying away the hot and humid air from the center, completely eliminating the persistent problem of poor ventilation in the central area of ​​traditional feed towers, and achieving uniform and deep drying of all stored feed. In conjunction with this, the air inlet axis of the second air inlet louver 213 forms a preset deflection angle with the tangent of the outer conical shell 212, which can induce fresh air to enter the interlayer at the optimal spiral angle, reducing inlet flow loss.

[0132] After being ventilated, cooled, and dried, the feed is discharged through the discharge pipe 24 at the bottom of the lower cone section 21. The discharge pipe is equipped with a rotary discharge valve, and the discharge port extends to the outside of the support silo 1 for easy receiving. An annular positioning ring is also welded to the bottom of the outer cone shell 212 of the lower cone section 21.

[0133] The locking and windproof mechanism 3 works in conjunction with the support mechanism 4 to securely anchor the entire tower assembly 2 to the support chamber 1 and provide additional locking force under storm conditions to prevent overturning.

[0134] An annular foundation steel frame 31 is pre-embedded within the placement opening 12. A supporting ring 32 is fastened to the steel frame via connectors and an adhesive layer is poured in to form a stable foundation. Multiple radial limiting grooves 321 are formed on the inner wall of the supporting ring 32. A rotating disk 34 is rotatably mounted below it via a thrust bearing 33. Multiple arc-shaped cam grooves 341 are radially machined onto the disk surface. A slider 35 is slidably embedded within each arc-shaped cam groove 341, and a supporting limiting block 36 is fixedly connected to the slider 35. The supporting limiting block 36 is precisely confined within the radial limiting groove 321, allowing only radial movement and preventing rotation. A trapezoidal locking wedge 361 is integrally formed at the upper end of the supporting limiting block 36. The wedge's inclined surface has a preset self-locking angle, and its surface is covered with a hardened serrated anti-slip layer 362. The outer edge of the rotating disk 34 is connected to a telescopic cylinder 38 via a crank-connecting rod mechanism 37.

[0135] The support base plate 41 of the support mechanism 4 rests on the support ring 32, and multiple support columns 42 are erected on its upper surface. The tops of the columns are connected by a fixing ring 43 to form a rigid frame that supports the tower body component 2. To ensure the overall rigidity and vibration resistance of the support mechanism, cross-stressed reinforcing braces 44 are intersecting between pairs of columns. Adjustable parts at the intersection nodes can be used to tighten the steel strands or tie rods and actively apply prestress to eliminate assembly gaps. Each brace is fitted with a grouting sleeve 45 on its outer side. After the prestress is applied, filler is injected under pressure through the grouting hole. After curing, the filler and the brace form a composite section, which greatly improves the slenderness ratio stability and corrosion resistance of the brace.

[0136] Under normal operating conditions, the tower body assembly 2 is inserted entirely into the fixing ring 43, and its lower conical section 21 passes through the mounting hole in the center of the support base plate 41, allowing the bottom annular positioning ring to embed into the limiting skirt formed by the upward folding edge of the support base plate 41. A sealing gasket is sandwiched between the two to achieve radial flexibility and axial sealing. The overall vertical load is transmitted to the support base plate 41 through the support column 42. The support base plate 41 is firmly pressed onto the support ring 32 by the wedge-shaped locking wedge 361 and the wedge-shaped locking groove opened on its lower surface. The cross-section of the wedge-shaped locking groove is a dovetail groove, which forms an axial self-locking with the trapezoidal locking wedge 361, ensuring that it will not loosen even without cylinder thrust.

[0137] When the external wind speed sensor detects that the wind speed exceeds a preset threshold, the environmental control central processing unit issues a command to control the telescopic cylinder 38 to actuate again. This, via the crank-connecting rod mechanism 37, drives the rotating disk 34 to rotate slightly, forcing all trapezoidal locking wedges 361 to further wedge in radially inward, applying an additional preload force to the supporting base plate 41 that is far greater than the conventional locking force. At this time, because the serrated anti-slip layer 362 bites into the dovetail groove slope, this locking connection can resist extremely large dynamic wind load bending moments, ensuring the absolute safety of the tower.

[0138] The air-expelling top cover assembly 5 is installed above the fixed ring 43 and the tower body assembly 2. Its main body is an annular air guide hood 51, composed of radially arranged supporting diagonal rods 511 and a rainproof tarpaulin 512 stretched below. A water-collecting ring 52 is fixed at the center of the annular air guide hood 51, and an exhaust pipe 55 connecting to an axial flow exhaust fan passes through the center of the water-collecting ring. An electric airflow regulating valve for adjusting the exhaust volume is installed inside the exhaust pipe 55. A notch is provided on one side of the annular air guide hood 51 as a discharge port 513, directly below which is a discharge hopper 23 connected to the inner cylinder wall 221. An arc-shaped rain shield 53, driven by an electric telescopic cylinder 54, is hinged to the discharge port 513. The arc-shaped rain shield 53 is molded from composite materials, and its outer contour curvature matches that of the annular air guide hood 51 to reduce wind resistance.

[0139] The top cover assembly perfectly coordinates the three functions of rain protection, ventilation, and material feeding through its structural design. When the arc-shaped rain shield 53 is closed during rain, the flexible guide curtain along the lower edge of the rain shield extends to cover the area of ​​the discharge port 513. Rainwater flows down along the arc-shaped rain shield 53 and, guided by the rainwater guide gap formed with the U-shaped support frame 521 on the water collection ring, flows into the double-walled hollow structure of the water collection ring 52. It is then quickly discharged through the annular water collection trough 522, which has a higher outer surface and a lower inner surface, completely preventing rainwater from flowing back into the material tower. At this time, the axial flow exhaust fan is turned on and works in conjunction with the air volume regulating valve to actively exhaust the waste gas in the tower through the exhaust pipe 55, creating negative pressure. This allows fresh air to continuously enter the tower interlayer through the first and second louvers, maintaining uninterrupted ventilation even in severe weather. When feeding is required, the electric telescopic cylinder 54 extends, opening the arc-shaped rain shield 53. The feed is smoothly guided from the feed inlet 513 through the feed hopper 23 into the inner cylinder wall 221, preventing it from scattering. The cable of the electric telescopic cylinder 54 is cleverly routed through the internal cavity of the support diagonal rod 511, ensuring safety and aesthetics.

[0140] In terms of control system integration, the actuators such as the electric telescopic cylinder 54, axial flow exhaust fan, variable speed exhaust fan 14, electric air volume regulating valve, and roller shutter door 11, as well as the wind speed sensor and temperature and humidity sensors arranged inside and outside the tower, are all connected to the environmental control central processor (environmental control system) via a bus. The processor integrates the signals from various sensors in real time, and after calculation based on the internally preset ventilation model, it adaptively and in conjunction with the speed of the variable speed exhaust fan 14, the opening of the air volume regulating valve, and the start, stop, and speed of the axial flow exhaust fan. This precisely controls the ventilation rate and airflow path inside the feed tower, realizing unmanned and intelligent management of the feed storage environment, and significantly reducing energy consumption while ensuring feed quality.

[0141] The construction method for the above-mentioned modular silo support structure specifically includes the following steps: (a) Foundation treatment and installation of embedded parts: The foundation is reinforced and a reinforced concrete raft foundation is poured. Anchor bolt groups and telescopic cylinder mounting supports are precisely embedded to ensure the rigidity of the foundation.

[0142] (b) Installation of support chamber 1: hoist the prefabricated support chamber section and correct its levelness, install the first air inlet louver 13, variable speed exhaust fan 14 and roller shutter door 11, and apply waterproof sealant at the assembly joints to ensure the airtightness of the chamber.

[0143] (c) Pre-adjustment of the clamping and windproof mechanism 3: Install the annular base steel frame 31 in the placement port 12 and pour the adhesive layer, then install the support ring 32, thrust bearing 33 and rotating wheel 34 in sequence. Assemble the slider 35 and the support limit block 36, connect the telescopic cylinder 38 through the crank connecting rod mechanism 37, repeatedly drive and adjust, and use a dial indicator to check the radial movement synchronization error of all trapezoidal clamping wedges 361 until the requirements are met.

[0144] (d) Ground pre-assembly of tower body component 2: Align the flange stops of the lower cone section 21 with each standard cylinder section 22, and apply the designed pre-tightening force with a torque wrench to ensure that the annular interlayer cavity 223 is fully connected. At the same time, install the discharge hopper 23 so that its discharge end is connected to the inner cylinder wall 221.

[0145] (e) Overall hoisting and verticality correction: The assembled tower component 2 is vertically hoisted and slowly lowered into the mounting holes of the support base plate 41, so that the annular positioning ring sits on the limiting skirt and the sealing gasket is clamped in. Two theodolites are set up to monitor the verticality in real time. Thin stainless steel shims with roughened treatment are inserted between the annular positioning ring and the limiting skirt for fine leveling. The number of shims stacked at the same position is strictly controlled to not exceed the maximum number of layers to ensure contact rigidity.

[0146] (f) Assembly and Locking of Support Mechanism 4: Support columns 42 and top fixing rings 43 are installed on the support base plate 41. Cross-bracing 44 is connected, and a preset prestress is applied via adjusting components. Then, the central processing unit controls the telescopic cylinder 38 to simultaneously press all trapezoidal clamping wedges 361 into the wedge-shaped clamping grooves. The actual contact rate between the trapezoidal clamping wedges 361 and the wedge-shaped clamping grooves is checked using a colorimetric method. After ensuring that the contact rate is not less than 95% of the design threshold, the air pressure is locked.

[0147] (g) Grouting and curing: If the ambient temperature is below 5°C, preheat the grouting material and the grouting sleeve 45. Then, inject non-shrink grouting material into the grouting sleeve 45 using pressure grouting method, injecting from the lower grouting hole. After the upper overflow hole flows out uniform grout, seal it, stabilize the pressure, and cover it for water retention and curing, so that the filler and the diagonal brace are integrated.

[0148] (h) Integration and commissioning of the exhaust fan top cover assembly 5: Install the supporting diagonal rod 511 on the fixed ring 43 and tension and lay the rainproof tarpaulin 512. Install the water collection ring 52, the exhaust pipe 55 with an electric air volume regulating valve, and the axial flow exhaust fan. Assemble the arc-shaped rain shield 53 and the electric telescopic cylinder 54 to ensure that the discharge hopper 23 and the discharge port 513 are vertically aligned. Finally, connect all actuators and sensors to the environmental control central processor, and commission the adaptive linkage ventilation program to complete the integration of the entire system.

[0149] The above description is merely an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A modular silo support structure, comprising a support silo body, wherein the side wall of the support silo body is provided with a roller shutter door and a placement opening, and the lower part of its side wall is fitted with a first air inlet louver and a variable speed exhaust fan; characterized in that, Also includes: The windproof clamping mechanism includes an annular base steel frame fixed inside the placement opening, a supporting ring fixed on the annular base steel frame, a rotating disk rotatably mounted below the supporting ring via a thrust bearing, multiple sliders, and trapezoidal clamping wedges. The rotating disk has radially opened arc-shaped cam grooves on its surface. Each slider is slidably embedded in a corresponding arc-shaped cam groove. A supporting limiting block is fixed to the slider. The supporting limiting block passes through a radial limiting groove on the inner wall of the supporting ring, and its upper end is integrally formed with the trapezoidal clamping wedge. A crank-connecting rod mechanism is hinged to the outer edge of the rotating disk and is driven to reciprocate via a telescopic cylinder, thereby causing all trapezoidal clamping wedges to synchronously advance and retreat radially. The tower assembly includes a lower conical section and at least one standard cylindrical section, which are sealed together by a flange. The standard cylindrical section includes an inner cylindrical wall and an outer cylindrical wall, which form an annular sandwich cavity. A continuous spiral guide plate is fixed inside the annular sandwich cavity. The lower conical section is composed of an inner conical shell and an outer conical shell forming an annular conical sandwich. The upper end of the annular conical sandwich is connected to the annular sandwich cavity. The outer conical shell is evenly distributed with second air inlet louvers, and the upper part of the outer cylindrical wall is provided with exhaust holes. The lower conical section is connected and fixed to the clamping windproof mechanism via a support mechanism. An air-guiding top cover assembly is provided on the top of the tower assembly.

2. The modular silo support structure according to claim 1, characterized in that: The support mechanism includes a support base plate, several support columns erected on the upper surface of the support base plate, and a fixing ring connecting the top of each column. The support base plate is placed on the upper surface of the support ring, and its lower surface has a wedge-shaped clamping groove corresponding to and complementary to the position of the trapezoidal clamping wedge. When the trapezoidal clamping wedge extends, it wedges upward into the wedge-shaped clamping groove to press the support base plate onto the support ring. The support base plate has a mounting hole in the center, and the edge of the support base plate is folded upward to form a limiting skirt. The lower conical section passes through the mounting hole, and an annular positioning ring is welded to the bottom of its outer conical shell. The annular positioning ring is embedded in the limiting skirt and has a sealing gasket sandwiched between it.

3. The modular silo support structure according to claim 2, characterized in that: The air-guiding top cover assembly includes an annular air guide hood, which is composed of radially arranged supporting diagonal rods and a rainproof tarpaulin stretched between the diagonal rods. The lower ends of the supporting diagonal rods are fixed to the fixed ring. One side of the annular air guide hood is open to form a discharge port, and an arc-shaped rain shield that is hinged to the discharge port and opened and closed by an electric telescopic cylinder is also connected to it. The air-guiding top cover assembly also includes a water-collecting ring fixed to the center of the annular air guide hood, an exhaust pipe passing through the center of the water-collecting ring, and an axial flow exhaust fan connected to the exhaust pipe. A U-shaped support frame is provided on the water-collecting ring, and the arc-shaped rain shield forms a rainwater guiding gap with the U-shaped support frame when closed. The tower assembly also includes a feeding hopper, which is located below the feeding port and its lower end is connected to the inner wall of the standard cylindrical section to guide feed from the feeding port into the inner wall of the cylinder.

4. The modular silo support structure according to claim 1, characterized in that: The spiral angle of the spiral guide plate gradually decreases from bottom to top along the axial direction, and turbulence holes are opened on the plate surface; the inner cylinder wall is opened in layers along the axial direction with multiple sets of horizontal elongated inner wall ventilation slots, each set of inner wall ventilation slots is evenly distributed in a ring, and the inner wall ventilation slots of adjacent layers are staggered; the air inlet axis of the second air inlet louver is at a preset deflection angle with the tangent of the outer cone shell to induce tangential air inlet; the adjacent layers of the inner wall ventilation slots are evenly distributed with a preset staggered angle, so that the airflow ejected from the inner wall ventilation slots of each layer forms a continuously rotating wall-sweeping air curtain inside the tower.

5. The modular silo support structure according to claim 2, characterized in that: The trapezoidal clamping wedge has a preset self-locking angle on its inclined surface, and the inclined surface is covered with a serrated anti-slip layer; the cross-section of the wedge-shaped clamping groove is a dovetail groove, which forms an axial self-locking fit with the trapezoidal clamping wedge; the telescopic cylinder is electrically connected to the central controller, and the central controller is configured to drive the cylinder to move according to the signal from the external wind speed sensor, so as to apply additional preload to the support mechanism.

6. The modular silo support structure according to claim 2, characterized in that: Cross-stressing reinforcing diagonal braces are intersected between each pair of supporting columns. Each diagonal brace is fitted with a grouting sleeve on its outer side. The grouting sleeve is provided with a grouting hole and an overflow hole. The inside is filled with filler material that, after curing, forms a combined cross section with the diagonal brace. An adjusting component for adjusting the prestress is provided at the middle intersection of the cross-stressing diagonal braces.

7. The modular silo support structure according to claim 3, characterized in that: The water collection ring has a double-walled hollow structure with an annular water collection groove on its upper surface. The bottom of the water collection groove is an inclined surface with a lower outer surface and a higher inner surface. Multiple drainage outlets corresponding to the rainproof tarpaulin are evenly spaced on the outer side of the annular water collection groove. The arc-shaped rain shield is molded from composite material, and its arc-shaped outer contour curvature is consistent with the annular air guide. A flexible flow guide curtain is fixed to the lower edge of the rain shield. When closed, the flexible flow guide curtain extends to cover the discharge port area. The cable of the electric telescopic cylinder runs along the internal cavity of the supporting inclined rod. An electric air volume regulating valve is also installed inside the air extraction pipe.

8. The modular silo support structure according to claim 1, characterized in that: The bottom of the lower conical section is connected to a discharge pipe with a rotary unloading valve, and the discharge port of the discharge pipe extends to the outside of the support hopper.

9. A construction method for a modular silo support structure as described in any one of claims 1 to 8, characterized in that, Includes the following steps: (a) Foundation treatment and installation of embedded parts: The foundation is reinforced and a reinforced concrete raft foundation is poured, and anchor bolt groups and telescopic cylinder mounting supports are embedded. (b) Installation of support chamber: hoist the prefabricated support chamber sections and correct the levelness, install the first air inlet louvers, variable speed exhaust fan and roller shutter door, and apply waterproof seal at the assembly joints; (c) Pre-adjustment of the clamping and windproof mechanism: Install the annular base steel frame and supporting ring in the placement opening, install the rotating wheel and thrust bearing, assemble the slider and supporting limit block, adjust the radial movement synchronization error of all trapezoidal clamping wedges, connect the telescopic cylinder and crank connecting rod mechanism and debug. (d) Ground pre-assembly of tower components: The lower cone section is aligned with each standard cylinder section through flanges and pre-tightened to form a continuous and through annular sandwich cavity, and the hopper is installed so that its lower end is connected to the inner cylinder wall; (e) Overall hoisting and verticality correction: The pre-assembled tower components are hoisted vertically so that the lower cone section is inserted into the mounting hole of the support base plate. The annular positioning ring is embedded in the limiting skirt and a sealing gasket is added. The verticality is monitored in real time and a shim is inserted between the support base plate and the annular positioning ring for leveling. (f) Assembly and locking of support mechanism: Install support columns and top fixing rings on the support base plate, install reinforcing diagonal braces crosswise and apply preset prestress, drive telescopic cylinder to extend trapezoidal clamping wedges and wedge into wedge-shaped clamping grooves, and lock pressure; (g) Grouting and curing: Grouting material is injected into the grouting sleeve using pressure grouting method, and water retention curing is carried out after pressure stabilization; (h) Integration of the exhaust cover assembly: Install the support diagonal rod on the fixed ring and lay the rainproof tarpaulin, install the water collection ring, the exhaust pipe and the axial flow exhaust fan, assemble the arc-shaped rain shield and the electric telescopic cylinder, and ensure that the discharge hopper and the discharge port are aligned, and connect to the environmental control system to complete the joint commissioning.

10. The construction method according to claim 9, characterized in that: In step (e), the gasket is a thin stainless steel gasket with a roughened surface, and the number of gaskets stacked at the leveling position does not exceed the preset maximum number of layers; in step (f), the actual contact rate between the trapezoidal clamping wedge and the wedge clamping groove is ensured to be no less than the preset threshold through colorimetric testing; in step (g), when the ambient temperature is lower than the predetermined value, the grouting material and grouting sleeve need to be preheated; in step (h), an electric air volume regulating valve is also installed inside the exhaust pipe, and the electric telescopic cylinder, axial flow exhaust fan, variable speed exhaust fan, electric air volume regulating valve and roller shutter are all connected to the environmental control central processor through a bus. The processor receives sensor signals from inside and outside the material tower in real time, and outputs instructions after calculation to realize adaptive linkage adjustment of the ventilation rate, airflow path and discharge port opening and closing inside the material tower.

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