Silo vertical concrete automatic curing device and construction method

Abstract

The invention discloses a silo vertical concrete automatic curing device and a construction method. The silo vertical concrete automatic curing device comprises a slip form unit and a curing unit. The slip form unit comprises a supporting rod, a frame body shaped like a Chinese character'kou 'and arranged on the top of the silo wall in a striding mode, and a jack and a steel formwork which are fixed to the frame body shaped like the Chinese character'kou'. The maintenance unit comprises a ground water supply assembly, an air pipeline assembly, a spraying assembly and a recycling assembly. The ground water supply assembly supplies water to the air pipeline assembly in a pressurized mode according to the maintenance requirement time sequence, and the air pipeline assembly is provided with an outer side maintenance pipe and an inner side maintenance pipe which are fixed to a frame shaped like a Chinese character'kou 'and located on the two sides of a silo wall respectively. The spraying assembly is connected with the aerial pipeline assembly and is provided with an outer spraying head and an inner spraying head which are used for spraying and maintaining the two sides of the silo wall respectively; the recycling assembly is provided with an outer water tank annularly arranged on the outer side of the silo wall and used for collecting maintenance water, and the maintenance water is input into a water storage tank for secondary utilization after being filtered. According to the device, the slip form and curing are combined, the blank of the slip form technology in the aspect of concrete curing is filled up, and it is guaranteed that construction and curing are synchronously and efficiently carried out.

Description

Technical Field

[0001] This invention belongs to the technical field of silo construction equipment, and more specifically, relates to an automated curing device and construction method for vertical concrete in silos. Background Technology

[0002] Silos are tall structures, typically exceeding 50 meters in height. The most common construction technique in China is slipform construction, characterized by its high continuity, mechanization, and stringent curing requirements. However, due to the rapid slipforming process (generally every 2-2.5 hours in summer, with each slipform rise 300mm), the poured concrete structure is prematurely exposed to air, leading to quality problems such as temperature differences between the inside and outside of the concrete, moisture loss, and temperature and shrinkage cracks. Technical specifications require curing to begin 4 hours after concrete demolding, with at least 6 curing cycles during the day and 4 during the night, adjusted dynamically according to temperature. Each layer of concrete must be cured for at least 7 days.

[0003] The above technical quality requirements determine the importance of timely maintenance. However, most of the existing technologies still use manual maintenance, which has the following defects: (1) Reliance on manual maintenance: high labor intensity, high labor cost, and high-altitude operation, which poses safety risks; (2) Poor maintenance effect: concrete cracks are easily caused by untimely or uneven maintenance, which cannot meet the maintenance requirements of "full coverage, timed and continuous"; Technology gap: there are gaps in the automated maintenance of vertical components of silos in slipform construction and the recycling of maintenance water, and there is a lack of targeted solutions; (3) Maintenance water is not recycled and reused, resulting in resource waste.

[0004] Therefore, there is an urgent need for an automated curing device for vertical concrete in silos, which can realize automated curing of vertical concrete surfaces inside and outside the silo, recycling and reuse of curing water, improve work efficiency, eliminate concrete cracks caused by untimely or uneven curing of vertical concrete structures, avoid the safety risks of manual curing, and simplify the concrete curing process. Summary of the Invention

[0005] To address the problems of low efficiency, high labor intensity, high labor costs, high safety risks, and inability to synchronize manual labor with the pouring process in existing silo pouring techniques, this invention provides an automated vertical concrete curing device and construction method for silos to solve these problems.

[0006] To achieve the above objectives, the present invention provides an automated vertical concrete curing device for silos, comprising: a slipform unit for continuous concrete pouring and forming, comprising support rods vertically installed within the silo wall, an open-frame structure spanning the top of the silo wall, jacks and steel formwork fixedly installed on the open-frame structure; the number of open-frame structures is the same as the number of support rods, and each includes an outer column, an inner column, an upper horizontal bar, and a lower horizontal bar; a curing unit for comprehensive curing of the demolded concrete, comprising a ground water supply assembly, an overhead pipeline assembly, and a spraying assembly; the ground water supply assembly pressurizes and delivers water to the overhead pipeline assembly according to the curing requirements, the overhead pipeline assembly including an outer curing pipe and an inner curing pipe fixedly installed on the open-frame structure, both located on opposite sides of the silo wall; the spraying assembly and... The aerial pipeline assembly, including external and internal spray heads, sprays and cures the silo walls on both sides. Concrete slurry is poured in layers inside the steel formwork until the top surface is reached. Jacks are then used to ascend along support rods, simultaneously raising the steel formwork to the next pouring layer height. Once the new pouring position is reached, the jacks are locked, and the next pouring operation begins. The ground water supply assembly delivers pressurized water to the external and internal spray heads according to the curing requirements, spraying and curing the newly demolded areas on the silo's inner and outer walls. After evenly covering the newly demolded concrete surface, the water flows down the silo wall, replenishing and covering the already poured areas that still require curing. Spraying is repeated according to a preset sequence, ensuring the sprayed area always covers the latest demolded area, until each layer of concrete has cured for 7 days.

[0007] Furthermore, the ground water supply assembly is located on the ground to provide maintenance water, including an inlet pipe, a water storage tank, a connecting pipe, a booster pump, a hose reel cylinder, a main water supply pipe, a dedicated electrical distribution box, and a control module. The inlet pipe connects to an external water source to replenish the water storage tank. The input end of the booster pump is connected to the water tank via the connecting pipe, pressurizing the input water source and delivering it to the main water supply pipe through its output end. The main water supply pipe is wound around the hose reel cylinder, which rotates synchronously with the steel template as it slides up, releasing the hose reel cylinder so that the main water supply pipe unfolds to a sufficient length to meet maintenance requirements. The electrical distribution box is electrically connected to the booster pump, providing power for the booster pump's pressurization operation. The control module is communicatively connected to the booster pump, controlling the booster pump to perform pressurization operations according to the maintenance cycle sequence.

[0008] Furthermore, the other end of the main water supply pipe is connected to the aerial pipe assembly on the sliding mold unit, and is limited and prevented from swaying by the lower guide wheel group and the upper guide wheel group; the lower guide wheel group is located at the lower end of the outer column body and includes two first guide wheels symmetrically arranged on both sides of the main water supply pipe, and the first guide wheels are U-shaped groove guide wheels; the upper guide wheel group is located at the middle end of the outer column body and includes two second guide wheels symmetrically arranged on both sides of the main water supply pipe.

[0009] Furthermore, the aerial pipeline assembly includes a ring-shaped main water supply pipe, a branch water supply pipe, an outer maintenance pipe, and an inner maintenance pipe.

[0010] Furthermore, the annular water supply main pipe is connected to the water supply main pipe, forming a ring-shaped pipeline. It is fixed to the inner side of the outer column by binding and is higher than the top of the steel formwork. The water supply branch pipe is set horizontally, with one end connected to the annular water supply main pipe and the other end sealed and fixed to the inner column by binding, thereby transporting the maintenance water to the inner side of the silo wall. The number of water supply branch pipes is the same as the number of open frame bodies. The outer maintenance pipe is set on the outer side of the silo wall, which is set vertically. Its top is connected to the water supply branch pipe, and its body is fixed to the inner side of the outer column. The inner maintenance pipe is set on the inner side of the silo wall, which is set vertically. Its top is connected to the water supply branch pipe, and its body is fixed to the inner side of the inner column.

[0011] Furthermore, the outer spray head is connected to the bottom of the outer maintenance pipe via a right-angle connector, thereby atomizing and spraying pressurized maintenance water onto the outer wall of the silo; the inner spray head is connected to the bottom of the inner maintenance pipe via a right-angle connector, thereby atomizing and spraying pressurized maintenance water onto the inner wall of the silo.

[0012] Furthermore, the recycling component includes an outer water tank, a drain pipe, and weather-resistant and waterproof sealant. The outer water tank is a ring-shaped structure, fitted onto the lower outer side of the silo wall and fixed to the silo wall with bolts. Weather-resistant and waterproof sealant is provided between the outer water tank and the outer wall of the silo to prevent leakage, allowing water flowing along the outer wall of the silo to flow into the outer water tank. The inlet end of the drain pipe is connected to the lowest point of the outer water tank, and the outlet end is connected to a water storage tank to collect the maintenance water into the water storage tank.

[0013] Furthermore, the outer and inner columns are arranged parallel to each other in the vertical direction, and are located on both sides of the silo wall respectively; the upper and lower horizontal bars are arranged parallel to each other in the horizontal direction above the silo wall, and their bars are vertically fixedly connected to the outer and inner columns respectively, thus forming an open-shaped structure.

[0014] Furthermore, the recycling component also includes an inner water tank and a water collection tank; the inner water tank is located at the lower end of the inner side of the silo wall to recycle the maintenance water flowing down the inner wall of the silo, and inputs the collected maintenance water into the water collection tank for use in the next step of the silo's internal ground foundation construction.

[0015] According to another aspect of the present invention, an automated curing construction method for vertical concrete in silos is also provided, comprising the following steps:

[0016] S100: Concrete pouring operation, pouring concrete in layers until the top surface of the steel formwork is reached;

[0017] S200: Start the jacks to climb along the support rods, driving the steel formwork to rise synchronously to the height of the next pouring layer. After reaching the new pouring position, lock the jacks to complete one sliplift.

[0018] S300: Four hours after the concrete is demolded, the control module automatically starts the pressurization pump. The curing water is pressurized and then delivered to the external and internal spray heads through the overhead pipeline assembly.

[0019] S400: External and internal spray nozzles spray and cure the newly demolded areas on the inner and outer walls of the silo for 5-10 minutes; after the water flow evenly covers the newly demolded concrete surface, it flows down along the silo wall to replenish and cover the areas below that have been poured but still need curing.

[0020] S500: Single maintenance cycle complete: After the set time is reached, the control module shuts off the pressurization pump, completing the single maintenance cycle;

[0021] S600: Water flowing down the outer wall of the silo collects into the outer water tank, is filtered through the drain pipe and then flows back to the water storage tank, where it is mixed with the new water and reused for maintenance.

[0022] S700: Repeat spraying according to the preset sequence. After each 300mm slipform rise, the curing device rises synchronously with the slipform to ensure that the spraying range always covers the newly demolded area until each layer of concrete has been cured for 7 days.

[0023] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0024] 1. The curing device of the present invention organically combines the slipform unit and the curing unit to form a complete construction process, which fills the gap in the slipform process for concrete curing and ensures that construction and curing are carried out simultaneously and efficiently.

[0025] 2. The curing device of the present invention has a control module that can adjust the start and stop time of the pressurizing pump, and can flexibly adjust the curing interval and duration according to different construction seasons, so as to meet the curing needs of slipform construction in various seasons and expand the application range of the device.

[0026] 3. In the maintenance device of the present invention, the rolled tube cylinder rotates to release the water supply main pipe when it slides upward with the sliding mold unit. The guide wheel assembly limits the water supply main pipe to prevent swaying and provides a fixed upward channel for the water supply main pipe, effectively reducing the risk of "burden" on the sliding mold unit, making the sliding mold unit slide more smoothly, and improving the safety of equipment operation.

[0027] 4. The curing device of the present invention can simultaneously cure the outer and inner walls of the silo, ensuring that the curing water evenly covers all exposed components, effectively avoiding the quality risk of cracks in the concrete structure due to uneven curing, and ensuring the appearance quality of the concrete.

[0028] 5. The maintenance device of the present invention uses weather-resistant and waterproof sealant to fill the gap between the inner side of the metal water tank and the outer wall of the silo, ensuring that the maintenance water can be smoothly recycled into the water storage tank and avoiding leakage, which reflects the rigor and practicality of the device design.

[0029] 6. The maintenance device of the present invention has a low loss rate, one set of devices can be used for the maintenance of multiple silo vertical components, has a high reuse rate, improves the efficiency of material use, and reduces construction costs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the vertical cross-section of an automated concrete curing device for silos according to an embodiment of the present invention;

[0031] Figure 2 This is a top view of the open-type frame in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the recycling component in an embodiment of the present invention;

[0033] Figure 4 This is a flowchart illustrating the automated curing method for vertical concrete in silos, as described in an embodiment of the present invention.

[0034] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0035] 1-Slipform unit, including: 101-Steel formwork, 102-Operating platform, 103-Jack, 104-Frame structure, 1041-Outer column, 1042-Inner column, 105-Support rod, 106-Guardrail;

[0036] 2-Maintenance unit, including: 201-Inlet pipe, 202-Water storage tank, 203-Connecting pipe, 204-Boosting pump, 205-Rolled pipe cylinder, 206-Main water supply pipe, 2071-Lower guide wheel assembly, 2072-Upper guide wheel assembly, 208-Annular main water supply pipe, 209-Water supply branch pipe, 210-Outer maintenance pipe, 211-Inner maintenance pipe, 2121-Outer spray head, 2122-Inner spray head, 213-Outer water tank, 214-Drainage pipe, 215-Weather-resistant waterproof sealant, 216-Dedicated distribution box, 217-Control module;

[0037] 3-Silo wall, including: 301-Silo outer wall, 302-Silo inner wall, 303-Pouring section. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0039] like Figure 1-3 As shown, the present invention provides an automated vertical concrete curing device for silos, including a slipform unit 1 and a curing unit 2; the slipform unit 1 includes a support rod 105 vertically installed within the silo wall 3, an open frame 104 spanning the top of the silo wall 3, jacks 103 and steel formwork 101 fixedly installed on the open frame 104; the curing unit 2 includes a ground water supply assembly, an overhead pipeline assembly, a spray assembly, and a recycling assembly; the ground water supply assembly pressurizes and delivers water to the overhead pipeline according to the curing requirements. Within the pipeline assembly, the aerial pipeline assembly includes an outer maintenance pipe 210 and an inner maintenance pipe 211 fixedly mounted on the open frame 104, both located on opposite sides of the silo wall 3; the spray assembly is connected to the aerial pipeline assembly and includes an outer spray head 2121 and an inner spray head 2122, both of which spray and maintain the opposite sides of the silo wall 3; the recycling assembly includes an outer water trough 213 circumferentially located on the outer side of the silo wall 3, which collects the downward-flowing maintenance water, filters it, and then inputs it into a water storage tank for secondary use. When the curing device of this invention is in operation, the jack 103 drives the scaffold 104 to climb along the support rod 105, raising the steel formwork 101 to the pouring end for pouring. The ground water supply component pressurizes water and sends it to the overhead pipeline component according to the curing requirements. The water is sprayed on both sides of the silo wall 3 through the external spray head 2121 and the internal spray head 2122. The curing water flowing downwards flows into the external water tank 213 for collection, and after filtration, it flows into the water storage tank for secondary use. The curing device of this invention realizes the functions of automated curing of the vertical concrete surface inside and outside the silo and recycling of curing water, which improves work efficiency, eliminates concrete cracks caused by untimely curing or uneven curing surface in the vertical concrete structure, avoids the safety risks of manual curing, simplifies the concrete curing process, and achieves the effects of automated curing, uniform curing surface without dead corners, reuse of curing water, energy saving, improved efficiency, reliable quality, and protection of personal safety.

[0040] like Figure 1 As shown in the embodiment of the present invention, the slipform unit 1 is used to realize the continuous pouring and molding of concrete and to drive the curing unit to rise synchronously. It includes a steel formwork 101, a jack 103, a frame 104 and a support rod 105.

[0041] The support rod 105 provides a stable climbing track for the jack 103, and multiple sets of it are provided in the inner circumferential direction of the silo wall 3. Furthermore, the support rod 105 is typically made of Φ48*3.5 Q235 round steel, which has high yield strength (≥235MPa) and straightness, and can withstand the vertical pressure and lateral force of the slipform unit 1 (steel formwork, operating platform, construction load, etc.). Furthermore, when installing the support rod 105, the lower end of the support rod 105 is pre-embedded in the foundation at the designed spacing (usually 1.5-2m / rod, evenly distributed along the circumference of the silo), with a embedment depth of not less than 500mm, and is welded and fixed to the foundation reinforcement to ensure a stable root and prevent tilting or settlement during climbing. Furthermore, during the slipform operation, when the top of the support rod 105 protrudes about 300-500mm from the top surface of the jack 103, the support rod needs to be extended in time. This is achieved by welding the axis-aligned support rods together using bevel welding, thereby extending the support rod 105 and providing a stable climbing track.

[0042] The open-shaped frame 104 is used to support other functional components and provides a carrier for the synchronous movement of the maintenance unit 2. It has an open-shaped structure, spans the top of the silo wall 3, and has multiple sets arranged around the silo wall 3. The number of open-shaped frame 104 is the same as that of the support rods 105. It includes an outer column 1041, an inner column 1042, an upper horizontal bar, and a lower horizontal bar. The outer column 1041 and the inner column 1042 are arranged parallel to each other in the vertical direction, and are located on both sides of the silo wall 3 respectively. The upper horizontal bar and the lower horizontal bar are arranged parallel to each other in the horizontal direction above the silo wall 3. The bar bodies of the two are vertically fixedly connected to the outer column 1041 and the inner column 1042 respectively, thus forming an open-shaped structure.

[0043] The steel formwork 101 includes an outer formwork and an inner formwork. The outer formwork is provided with multiple sets of reinforcing ribs on its outer side. Adjacent outer formworks are spliced ​​together by U-shaped clips to ensure tight joints. Furthermore, two outer rings are arranged in parallel on the outer side of the outer formwork. The outer rings are fixedly connected to the outer formwork frame by hook bolts to transmit the lateral pressure of the concrete and the frictional resistance during sliding. The outer rings are made of channel steel and are threadedly connected to the ring support provided on the inner side of the outer column 1041 by bolts, so that the outer formwork, the outer rings and the scaffold (104) form a rigid whole, ensuring that the scaffold (104) drives the outer formwork to slide synchronously through the outer rings. The inner template is provided with multiple sets of reinforcing ribs on the outside, and adjacent inner templates are spliced ​​together by U-shaped clips to ensure tight joints; furthermore, two inner rings are arranged in parallel on the outside of the inner template, and are fixedly connected to the inner rings by hook bolts passing through the inner template frame to transmit the concrete lateral pressure and frictional resistance during sliding; the inner rings are made of channel steel, and are threadedly connected to the ring support provided on the inner side of the inner column 1042 by bolts, so that the inner template, the inner rings and the scaffold (104) form a rigid whole, ensuring that the scaffold (104) drives the inner template to slide synchronously through the inner rings.

[0044] Furthermore, the steel formwork 101 has a height of 1200mm and serves as a molding mold for concrete pouring. It forms the vertical structural outline of the silo wall 3 by enclosing the concrete. During pouring, the concrete is filled into the formwork in layers of 300mm each, with a pouring interval of 2 hours. The formwork's constraint helps to form the shape and size required by the design. When the concrete is poured to the top surface of the steel formwork 101 and reaches a certain strength (approximately 2 hours later), the slipform unit 1 uses jacks 103 to lift the steel formwork 101 upwards by 300mm (each lift height), allowing the newly poured concrete to be demolded and exposed. At the same time, the steel formwork 101 rises to a new pouring position. This "pouring-slipforming" cycle continues until the silo is capped, achieving continuous construction of the tall structure, avoiding the joint problems of traditional segmented construction, and significantly improving construction efficiency.

[0045] The jack 103 is mounted on the support rod 105 and fixedly connected to the open frame 104. The jack 103 adopts a through-hole design, with the support rod 105 passing through the center of the inner wall. The inner wall is provided with an upper clamp and a lower clamp. When the jack 103 is performing climbing operations, the oil is pressurized by the oil pump and distributed to each jack 103 by the oil distributor. The high-pressure oil enters the jack cylinder and pushes the piston upward. During this stage, the upper clamp locks the support rod due to friction, and the lower clamp releases as the piston rises. When the piston returns, the lower clamp locks the support rod, and the upper clamp releases, forming an alternating clamp, which allows the jack 103 to climb along the support rod 105, thereby driving the sliding mold unit 1 to rise.

[0046] The slipform unit 1 also includes an operating platform 102, which provides an aerial work point for construction personnel to perform tasks such as vibration and finishing of the newly poured area. The operating platform 102 includes an outer platform and an inner platform, both of which are ring-shaped structures. The inner side of the outer platform is fixedly connected to the outer side of the outer column 1041 by bolts, and its bottom is supported and fixed to the lower end of the outer column 1041 by reinforcing rods. The inner side of the inner platform is fixedly connected to the inner side of the inner column 1042 by bolts, and its bottom is supported and fixed to the lower end of the inner column 1042 by reinforcing rods. Furthermore, the operating platform 102 is also equipped with a railing 106 to prevent personnel from falling.

[0047] When the slipform unit 1 of the present invention is in operation, concrete slurry is filled in layers inside the steel formwork 1, with each layer having a pouring height of 300mm, and then vibrated evenly. Pouring is carried out every 2 hours until the top surface of the steel formwork 101 is reached and a certain strength is achieved. Multiple sets of jacks 103 are driven to climb synchronously along the support rods 105, and are locked and fixed when they climb to 300mm. The newly poured concrete is demolded and exposed to the outside, and at the same time the steel formwork 101 is raised to a new pouring position for the next pouring operation. The pouring and slipforming steps are repeated until the silo is capped, realizing the continuous construction of the tall structure.

[0048] The curing unit 2 provides comprehensive curing for the demolded concrete, and includes a ground water supply assembly, an overhead pipeline assembly, a spray assembly, and a recycling assembly.

[0049] The ground water supply assembly, located on the ground, provides maintenance water and includes an inlet pipe 201, a water storage tank 202, a connecting pipe 203, a booster pump 204, a hose reel cylinder 205, a main water supply pipe 206, a dedicated electrical distribution box 216, and a control module 217. The inlet pipe 201 connects to an external water source to replenish the water storage tank 202. The booster pump 204, with its input end connected to the water tank 202 via the connecting pipe 203, pressurizes the input water source and delivers it to the water supply system via its output end. The main water supply pipe 206 is wound around the rolled pipe cylinder 205. The rolled pipe cylinder 205 rotates synchronously with the sliding rise of the steel template 101 to release the rolled pipe cylinder 205, so that the main water supply pipe 206 can be unfolded to a sufficient length to meet the maintenance requirements. The distribution box 216 is electrically connected to the pressurization pump 204 to provide power for the pressurization operation of the pressurization pump 204. The control module 217 is communicatively connected to the pressurization pump 204 and controls the pressurization operation of the pressurization pump 204 according to the maintenance cycle sequence.

[0050] Furthermore, the other end of the main water supply pipe 206 is connected to the aerial pipe assembly on the sliding formwork unit 1. To prevent the main water supply pipe 206 from swaying during the upward movement of the sliding formwork unit 1, a lower guide wheel assembly 2071 and an upper guide wheel assembly 2072 are provided to limit the movement of the main water supply pipe 206. The lower guide wheel assembly 2071 and the upper guide wheel assembly 2072 are respectively provided on the inner side of the corresponding outer column 1041. The lower guide wheel assembly 2071 is provided at the lower end of the outer column 1041 and includes two first guide wheels symmetrically arranged on both sides of the main water supply pipe 206. The first guide wheels are U-shaped groove guide wheels, which limit the movement of the other end of the main water supply pipe 206 to prevent it from swaying. The upper guide wheel assembly 2072 is provided at the middle end of the outer column 1041 and includes two second guide wheels symmetrically arranged on both sides of the main water supply pipe 206 to limit the movement of the main water supply pipe 206 to prevent it from swaying.

[0051] The aerial pipeline assembly receives maintenance water and delivers it to the sprinkler assembly. It includes a ring-shaped main water supply pipe 208, branch water supply pipes 209, an outer maintenance pipe 210, and an inner maintenance pipe 211. The ring-shaped main water supply pipe 208 is connected to the main water supply pipe 206, forming a ring-shaped pipeline. It is fixed to the inside of the outer column 1041 by binding and is higher than the top of the steel formwork 104. The branch water supply pipe 209 is horizontally positioned, with one end connected to the ring-shaped main water supply pipe 208 and the other end sealed and fixed by binding. On the inner column 1042, maintenance water is transported to the inner side of the silo wall 3. The number of water supply branch pipes 209 is the same as the number of open frame bodies 104. The outer maintenance pipe 210 is located on the outer side of the silo wall 3. It is set vertically, and its top is connected to the water supply branch pipe 209. The pipe body is tied and fixed to the inner side of the outer column 1041. The inner maintenance pipe 211 is located on the inner side of the silo wall 3. It is set vertically, and its top is connected to the water supply branch pipe 209. The pipe body is tied and fixed to the inner side of the inner column 1042.

[0052] The spray assembly sprays water onto the outer wall 301 and inner wall 302 of the silo for curing. It includes an outer spray head 2121 and an inner spray head 2122. The outer spray head 2121 is connected to the bottom of the outer curing pipe 210 via a right-angle connector, thereby atomizing and spraying pressurized curing water onto the outer wall 301 of the silo, and performing curing operations on the newly poured concrete area that has just been demolded. The inner spray head 2122 is connected to the bottom of the inner curing pipe 211 via a right-angle connector, thereby atomizing and spraying pressurized curing water onto the inner wall 302 of the silo, and performing curing operations on the newly poured concrete area that has just been demolded.

[0053] like Figure 3As shown, the recycling assembly includes an outer water tank 213, a drain pipe 214, and weather-resistant waterproof sealant 215. The outer water tank 213 is a ring-shaped structure, fitted onto the lower outer side of the silo wall 3, and fixed to the silo wall 3 with bolts. Weather-resistant waterproof sealant 215 is provided between the outer water tank 213 and the outer wall 301 of the silo to prevent water leakage and allow water flowing along the outer wall 301 of the silo to flow into the tank. Furthermore, the drainage slope of the outer water tank 213 is 1%, and a drain pipe 214 is provided at its lowest point. The output end of the drain pipe 214 is connected to a water storage tank 202 to collect the maintenance water into the water storage tank 202. Preferably, a filter screen is provided at the input end of the drain pipe 214 to filter impurities. Furthermore, the recycling component also includes an inner water tank and a water collection tank; the inner water tank is located at the lower inner side of the silo wall 3 to recycle the maintenance water flowing down the inner wall 302 of the silo, and inputs the collected maintenance water into the water collection tank for use in the next step of the silo's internal ground foundation construction.

[0054] During the operation of the curing unit of this invention, the slipform unit 1 climbs up, allowing the newly poured concrete to be demolded and exposed. The rolled pipe cylinder 205 rotates synchronously with the sliding formwork 101, releasing the rolled pipe cylinder 205, thereby allowing the main water supply pipe 206 to unfold to a sufficient length to meet the curing requirements. Four hours after demolding, the control module 217 controls the pressurization pump 204 to pressurize and deliver the curing water to the main water supply pipe 206. The main water supply pipe 206 delivers the curing water upward to the annular main water supply pipe 208, which is circumferentially arranged to deliver the curing water to multiple sets of water supply branch pipes 209. The water supply branch pipes 209 deliver the curing water downward to the outer curing pipe 210 and the inner curing pipe 211, respectively. The outer spray head 2121 and the inner spray head 2122 spray the water onto the outer wall 301 and the inside of the silo, respectively. Wall 302 is sprayed with water for curing, with the water flow evenly covering the newly demolded concrete surface for 5-10 minutes. After the set time is reached, the control module 217 controls the pressure pump 204 to stop working, completing a single curing cycle. After an interval of 4 hours (day shift) or longer (night shift), when the upper layer of concrete is poured and slipformed, the control module 217 restarts the pressure pump 204 to spray the newly demolded area and the lower layer that still needs curing repeatedly. Each time the slipform is raised by 300mm, the curing device is raised synchronously to ensure that the spraying range always covers the newly demolded area until the silo is sealed. During the spraying process, excess water flowing from the outer wall flows into the outer water tank 213 and flows back to the water storage tank 202 through the drain pipe 214. The recovered water is filtered and mixed with newly added clean water for reuse in curing, achieving the effect of water conservation and reducing ground pollution.

[0055] When the curing unit of this invention performs spray curing, the water flow evenly covers the surface of the newly demolded concrete and then flows down along the silo wall to replenish and cover the areas below that have been poured but still need curing. The spraying component covers the historically poured areas through timed repeated spraying and water flow, and with the help of sufficient pipeline length and stable water pressure, it finally achieves full coverage curing of the poured areas of the 50m high silo, ensuring accurate curing of the areas that are demolded immediately, and covering the areas that need curing throughout the process through periodic water replenishment, thus meeting the requirement in the specification that "each layer should be cured for no less than 7 days".

[0056] The curing device of the present invention organically combines the slipform unit and the curing unit to form a complete construction process, filling the gap in the slipform process for concrete curing and ensuring that construction and curing are carried out simultaneously and efficiently.

[0057] The curing device of the present invention has a control module that can adjust the start and stop time of the pressurizing pump, and can flexibly adjust the curing interval and duration according to different construction seasons, so as to meet the curing needs of slipform construction in various seasons and expand the application range of the device.

[0058] The maintenance device of the present invention rotates to release the water supply main pipe as the tube cylinder slides upward with the sliding mold unit. The guide wheel assembly limits the water supply main pipe to prevent swaying and provides a fixed upward channel for the water supply main pipe, effectively reducing the risk of "burden" on the sliding mold unit, making the sliding mold unit slide more smoothly, and improving the safety of equipment operation.

[0059] The curing device of the present invention can simultaneously cure the outer and inner walls of the silo, ensuring that the curing water evenly covers all exposed components, effectively avoiding the quality risk of cracks in the concrete structure due to uneven curing, and ensuring the appearance quality of the concrete.

[0060] The maintenance device of this invention uses weather-resistant and waterproof sealant to fill the gap between the inner side of the metal water tank and the outer wall of the silo, ensuring that the maintenance water can be smoothly recycled back to the water storage tank and avoiding leakage, which reflects the rigor and practicality of the device design.

[0061] The maintenance device of the present invention has a low loss rate, one set of devices can be used for the maintenance of multiple silo vertical components, has a high reuse rate, improves the efficiency of material use, and reduces construction costs.

[0062] like Figure 4 As shown, the present invention also provides an automated curing construction method for vertical concrete in silos, comprising the following steps:

[0063] S100: Concrete pouring operation, pour concrete in layers until the top surface of steel formwork 101 is reached;

[0064] S200: Start jack 103 to climb along support rod 105, driving steel formwork 101 to rise synchronously to the height of the next pouring layer. After reaching the new pouring position, lock the jack to complete one sliplift.

[0065] S300: Four hours after the concrete is demolded, the control module 217 automatically starts the pressurization pump 204. The curing water is pressurized and then delivered to the external spray head 2121 and the internal spray head 2122 through the aerial pipeline assembly.

[0066] S400: External spray head 2121 and internal spray head 2122 spray the newly demolded areas on the inner and outer walls of the silo for 5-10 minutes; after the water flow evenly covers the newly demolded concrete surface, it flows down along the silo wall to replenish and cover the areas below that have been poured but still need curing.

[0067] S500: Single maintenance cycle complete: After the set time is reached, the control module 217 shuts off the pressurization pump, completing the single maintenance cycle;

[0068] S600: Water flowing down from the outer wall 301 of the silo collects into the outer water tank 213, is filtered through the drain pipe 214, and then flows back to the water storage tank 202, where it is mixed with fresh water and reused for maintenance.

[0069] S700: Repeat spraying according to the preset sequence. After each 300mm slipform rise, the curing device rises synchronously with the slipform to ensure that the spraying range always covers the newly demolded area until each layer of concrete has been cured for 7 days.

[0070] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automated curing device for vertical concrete in silos, characterized in that, include: A slipform unit (1) for continuous concrete pouring includes a support rod (105) installed vertically within the silo wall (3), an open frame (104) spanning the top of the silo wall (3), a jack (103) fixed to the open frame (104), and a steel formwork (101). The number of open frames (104) is the same as that of the support rods (105), and each frame includes an outer column (1041), an inner column (1042), an upper crossbar, and a lower crossbar. The curing unit (2) for comprehensive curing of demolded concrete includes a ground water supply assembly, an aerial pipeline assembly, and a spray assembly. The ground water supply assembly pressurizes water and delivers it to the aerial pipeline assembly according to the curing requirements. The aerial pipeline assembly includes an outer curing pipe (210) and an inner curing pipe (211) fixed on the open frame (104), which are located on both sides of the silo wall (3). The spray assembly is connected to the aerial pipeline assembly and includes an outer spray head (2121) and an inner spray head (2122), which spray the two sides of the silo wall (3) for curing. Concrete slurry is poured into the steel formwork (101) in layers until the top surface of the steel formwork (101) is reached; the jack (103) is started to climb along the support rod (105), driving the slipform unit (1) to rise synchronously to the next pouring layer height. After reaching the new pouring position, the jack (103) is locked and the next pouring operation is carried out; the ground water supply component delivers pressurized water to the external spray head (2121) and the internal spray head (2122) according to the curing requirements, so as to spray and cure the newly demolded areas on the inner and outer walls of the silo; after the water flow evenly covers the newly demolded concrete surface, it flows down along the silo wall to supplement and cover the areas below that have been poured but still need curing; the spraying is repeated according to the preset time sequence to ensure that the spraying range always covers the latest demolded area until each layer of concrete has been cured for 7 days.

2. The automated vertical concrete curing device for silos according to claim 1, characterized in that, The ground water supply assembly is located on the ground and provides maintenance water, including an inlet pipe (201), a water storage tank (202), a connecting pipe (203), a booster pump (204), a rolled pipe cylinder (205), a main water supply pipe (206), a dedicated power distribution box (216), and a control module (217). The inlet pipe (201) is connected to an external water source to replenish the water storage tank (202); the input end of the booster pump (204) is connected to the water tank (202) through the connecting pipe (203), which pressurizes the input water source and delivers it to the water supply main pipe (206) through the output end; the water supply main pipe (206) is wound on the rolled pipe cylinder (205), and the rolled pipe cylinder (205) rotates synchronously with the steel template (101) to release the rolled pipe cylinder (205), so that the water supply main pipe (206) can be unfolded to a sufficient length to meet the maintenance requirements; the power distribution box (216) is electrically connected to the booster pump (204) to provide power for the booster pump (204) to pressurize; the control module (217) is communicatively connected to the booster pump (204) to control the booster pump (204) to perform pressurization operations according to the maintenance cycle sequence.

3. The automated vertical concrete curing device for silos according to claim 2, characterized in that, The other end of the main water supply pipe (206) is connected to the aerial pipe assembly on the sliding mold unit (1), and is limited and prevented from swaying by the lower guide wheel group (2071) and the upper guide wheel group (2072); the lower guide wheel group (2071) is located at the lower end of the outer column (1041) and includes two first guide wheels symmetrically arranged on both sides of the main water supply pipe (206), the first guide wheels being U-shaped groove guide wheels; the upper guide wheel group (2072) is located at the middle end of the outer column (1041) and includes two second guide wheels symmetrically arranged on both sides of the main water supply pipe (206).

4. An automated curing device for vertical concrete in silos according to any one of claims 1-3, characterized in that, The aerial pipeline assembly includes a ring-shaped main water supply pipe (208), a water supply branch pipe (209), an outer maintenance pipe (210), and an inner maintenance pipe (211).

5. The automated vertical concrete curing device for silos according to claim 4, characterized in that, The annular water supply main pipe (208) is connected to the water supply main pipe (206) and forms a ring-shaped pipeline. It is fixed to the inner side of the outer column (1041) by binding and is higher than the top of the steel formwork (101). The water supply branch pipe (209) is set horizontally. One end of it is connected to the annular water supply main pipe (208), and the other end is sealed and fixed to the inner column (1042) by binding, thereby transporting the maintenance water to the inner side of the silo wall (3). The water supply branch pipe (209) 09) The number of the same as the number of the open frame (104) is provided; the outer maintenance pipe (210) is provided on the outside of the silo wall (3), and is set in the vertical direction. The top is connected to the water supply branch pipe (209), and the pipe body is tied and fixed to the inside of the outer column (1041); the inner maintenance pipe (211) is provided on the inside of the silo wall (3), and is set in the vertical direction. The top is connected to the water supply branch pipe (209), and the pipe body is tied and fixed to the inside of the inner column (1042).

6. An automated curing device for vertical concrete in silos according to any one of claims 1-3, characterized in that, The external spray head (2121) is connected to the bottom of the outer curing pipe (210) through a right-angle connector, thereby atomizing and spraying pressurized curing water onto the outer wall (301) of the silo; the internal spray head (2122) is connected to the bottom of the inner curing pipe (211) through a right-angle connector, thereby atomizing and spraying pressurized curing water onto the inner wall (302) of the silo.

7. An automated curing device for vertical concrete in silos according to any one of claims 1-3, characterized in that, The recycling components include an outer water tank (213), a drain pipe (214), and weather-resistant waterproof sealant (215). The outer water tank (213) is a ring structure, fitted on the lower outer side of the silo wall (3), and fixed to the silo wall (3) by bolts. Weather-resistant waterproof sealant (215) is provided between it and the outer wall (301) of the silo to prevent water leakage, so that the water flowing along the outer wall (301) of the silo flows into the outer water tank (213). The inlet end of the drain pipe (214) is connected to the lowest point of the outer water tank (213), and the outlet end is connected to the water storage tank (202) to collect the maintenance water into the water storage tank (202).

8. An automated curing device for vertical concrete in silos according to any one of claims 1-3, characterized in that, The outer column (1041) and inner column (1042) are arranged in parallel along the vertical direction, and are located on both sides of the silo wall (3); the upper horizontal bar and the lower horizontal bar are arranged in parallel along the horizontal direction above the silo wall (3), and the bar bodies are vertically fixedly connected to the outer column (1041) and the inner column (1042) respectively, thereby forming an open-shaped structure.

9. An automated curing device for vertical concrete in silos according to any one of claims 1-3, characterized in that, The recycling component also includes an inner water tank and a water collection tank; the inner water tank is located at the lower end of the inner side of the silo wall (3) to recycle the maintenance water flowing down the inner wall (302) of the silo, and inputs the collected maintenance water into the water collection tank for use in the next step of the silo interior ground foundation construction.

10. A method for automated curing of vertical concrete in silos, implemented using an automated curing device as described in any one of claims 1-9, characterized in that... Includes the following steps: S100: Concrete pouring operation, pour concrete in layers until the top surface of the steel formwork (101) is reached; S200: Start the jack (103) to climb along the support rod (105), and drive the steel formwork (101) to rise synchronously to the height of the next pouring layer. After reaching the new pouring position, lock the jack to complete one sliplift. S300: Four hours after the concrete is demolded, the control module (217) automatically starts the pressurization pump (204), and the curing water is pressurized and then delivered to the external spray head (2121) and the internal spray head (2122) through the aerial pipeline assembly. S400: External spray head (2121) and internal spray head (2122) spray the newly demolded area on the inner and outer walls of the silo for 5-10 minutes; after the water flow evenly covers the newly demolded concrete surface, it flows down along the silo wall to replenish and cover the area below that has been poured but still needs to be cured. S500: Single maintenance completed: After the set time is reached, the control module (217) shuts off the pressurization pump to complete the single maintenance. S600: Water flowing down from the outer wall (301) of the silo is collected in the outer water tank (213), filtered through the drain pipe (214), and then returned to the water storage tank (202), where it is mixed with the new water and reused for maintenance. S700: Repeat spraying according to the preset sequence. After each 300mm slipform rise, the curing device rises synchronously with the slipform to ensure that the spraying range always covers the newly demolded area until each layer of concrete has been cured for 7 days.

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