Green maintenance device for concrete members

Abstract

The invention relates to a green curing device for concrete members, and belongs to the field of concrete curing equipment. The device comprises a carbon dioxide supply unit special for energy-saving building material production and a frame body arranged on the outer side of a cylindrical concrete member in a sleeving mode. A sealing tarpaulin is arranged on the periphery of the frame body; a flexible ring groove is formed in the bottom of the frame body; the outer side of the flexible ring groove is connected with the sealing tarpaulin; the inner side of the flexible ring groove wraps the bottom of the cylindrical concrete member; a plurality of shunting pipes are vertically arranged on the frame body; the top of the shunting pipe is connected with a carbon dioxide supply unit special for energy-saving building material production; a water pumping unit is arranged at the bottom of the shunt pipe; the water pumping unit is located in the flexible ring groove; a branch pipe extending towards the direction of the cylindrical concrete member is arranged at the bottom of the shunt pipe; water spraying holes with upward openings are formed in the branch pipes; a plurality of air injection holes are respectively formed in the plurality of shunting pipes along the vertical direction; the device has the technical effects of saving energy and prolonging the service life of equipment.

Description

Technical Field

[0001] This application relates to the technical field of concrete curing equipment, and in particular to a green curing device for concrete components. Background Technology

[0002] Concrete is a mixture containing cementitious materials; it requires curing when supporting concrete components; currently, carbon dioxide curing equipment is commonly used for curing concrete components; carbon dioxide curing equipment is a specialized equipment for the production of energy-saving building materials; when using carbon dioxide curing to cure columnar concrete components, the temperature between the sealing tarpaulin and the columnar concrete component needs to be maintained between 20 and 40 degrees Celsius; during winter construction, due to temperature differences, water vapor condenses on the surfaces of the sealing tarpaulin and the columnar concrete component; the condensed water eventually accumulates at the bottom of the sealing tarpaulin, easily causing the sealing tarpaulin to sag and affecting the sealing effect; however, during curing, water vapor needs to be injected between the columnar concrete and the sealing tarpaulin, causing a large amount of moisture to accumulate at the bottom of the sealing tarpaulin; further affecting the sealing effect of the sealing tarpaulin.

[0003] Chinese patent application No. 202411535911.4 discloses a prefabricated column-mounted preheating hood, including a prefabricated preheating hood and an intelligent temperature control system base. The intelligent temperature control system base is installed on the prefabricated column base. The prefabricated preheating hood adopts an assemblable design, and multiple prefabricated preheating hoods are sequentially spliced ​​according to the length of the column and installed on the intelligent temperature control system base to form a kiln body with sealed columns. Steam pipes and water spray pipes are installed on the intelligent temperature control system base. Water pipes corresponding to the steam pipes and water spray pipes are installed inside the prefabricated preheating hood. The water pipes are connected to nozzles. Temperature and humidity probes are also installed inside the prefabricated preheating hood. The temperature and humidity probes feed back the signals inside the kiln to the curing system host through a data cable. The curing system host sends control signals to the intelligent temperature control system base to control the opening / closing of the solenoid valves in the steam pipes and water spray pipes. The aforementioned patented preheating hood has a history of water accumulation, which can easily lead to water accumulation at the bottom of the preheating hood and damage over time.

[0004] Regarding the aforementioned technologies, the inventors believe that there is a defect: water easily accumulates at the bottom of the sealed tarpaulin, which reduces the service life of the sealed tarpaulin. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a green curing device for concrete components.

[0006] This application provides a green curing device for concrete components, which adopts the following technical solution: A green curing device for concrete components includes a carbon dioxide supply unit specifically designed for energy-saving building material production and a frame fitted over the outer side of a columnar concrete component. A sealing tarpaulin is provided around the outer periphery of the frame. A flexible annular groove is provided at the bottom of the frame. The outer side of the flexible annular groove is connected to the sealing tarpaulin. The inner side of the flexible annular groove wraps around the bottom of the columnar concrete component. Multiple diversion pipes are vertically arranged on the frame. The top of each diversion pipe is connected to the carbon dioxide supply unit specifically designed for energy-saving building material production. A pumping unit is located at the bottom of each diversion pipe within the flexible annular groove. A branch pipe extends from the bottom of each diversion pipe toward the columnar concrete component. An upward-facing spray nozzle is provided on the branch pipe. Multiple air jets are vertically arranged on each of the multiple diversion pipes.

[0007] By adopting the above technical solution, the pumping unit can draw water from the flexible annular groove to the branch pipe. The downward flow of carbon dioxide gas in the diversion pipe will drive water to spray upward from multiple spray holes in the branch pipe. On the one hand, it solves the problem of excessive water accumulation at the bottom of the sealing tarpaulin, and on the other hand, it reduces the amount of water vapor injected, making full use of the moisture in the internal space of the sealing tarpaulin, realizing the self-circulation effect of moisture in the sealing tarpaulin, and saving energy.

[0008] Preferably, the pumping unit includes a pumping pipe and a screw rod; the top of the pumping pipe is connected to the diversion pipe and the bottom is located in the flexible annular groove; the screw rod is rotatably disposed in the pumping pipe; an extension rod is coaxially connected to the top of the screw rod; the top end of the extension rod extends upward and is located in the diversion pipe; a plurality of propeller-shaped blades are evenly arranged around the extension rod.

[0009] By adopting the above technical solution, the pumping unit uses a structure with a built-in helical rod in the pumping pipe, and propeller-shaped blades arranged circumferentially on the extension rod. It utilizes the vertical flow kinetic energy of the carbon dioxide gas flow in the diversion pipe during the curing process to drive the propeller-shaped blades to rotate, thereby synchronously driving the extension rod and the helical rod to rotate coaxially. With the help of the helical rod's cyclonic transport effect in the pumping pipe, the pumping and upward pumping of the backflow curing water in the flexible annular groove is completed. This structure does not require additional electric pumping equipment, and relies entirely on the surplus kinetic energy of the carbon dioxide gas supply to achieve water circulation, completely eliminating the power consumption of the pumping process.

[0010] Preferably, the energy-saving building material production carbon dioxide supply unit includes a combustion chamber, a feeding chamber, and a buffer chamber; the combustion chamber has an air outlet on its side wall; the buffer chamber has an air inlet and an air outlet; the air outlet is connected to the air inlet; the air outlet is connected to the plurality of distribution pipes; the feeding chamber has a feeding port at its bottom; the feeding port is connected to the combustion chamber; a feeding plate is rotatably installed at the feeding port; the feeding plate is used to close the feeding port.

[0011] By adopting the above technical solution, the carbon dioxide produced by burning wood chips and other combustibles in the combustion chamber is supplied to the distribution pipe for curing column concrete components, thus achieving the development requirements of energy conservation, consumption reduction and resource recycling. The carbon dioxide produced by combustion itself has high temperature characteristics, avoiding the need for additional carbon dioxide gas heating equipment and saving energy.

[0012] Preferably, the bottom of the combustion chamber is provided with a lower ash screen; an ash collection bin is provided below the lower ash screen; the bottom of the ash collection bin has an ash outlet; and an ash outlet plate is rotatably provided at the ash outlet.

[0013] By adopting the above technical solution, the ash produced by combustion in the combustion chamber falls into the ash collection bin from the lower ash screen, which can efficiently screen and block the solid ash produced after wood chip combustion from the wood chips, and achieve efficient separation of gas and slag.

[0014] Preferably, a transmission unit is provided between the ash discharge plate and the material feeding plate; the transmission unit includes a counterweight rod and a connecting rod; the counterweight rod slides vertically on the combustion chamber; the bottom of the counterweight rod is rotatably connected to the end of the ash discharge plate opposite to the ash discharge port; one end of the connecting rod is rotatably connected to the end of the material feeding plate opposite to the material feeding port, and the other end is rotatably connected to the top of the counterweight rod.

[0015] By adopting the above technical solution, when too much ash accumulates in the ash collection bin, to the point that its weight exceeds the weight of the counterweight rod, the ash presses down and rotates the ash discharge plate, opening the ash outlet. Simultaneously, the ash discharge plate pushes the counterweight rod upward. The counterweight rod, through a connecting rod, lifts one end of the feeding plate upward and causes the other end of the ash discharge plate to swing downward, thereby opening the feeding outlet. The amount of ash falling from the ash collection bin reflects the actual burning situation of the wood chips in the combustion chamber. The transmission unit mechanically links the feeding plate and the ash discharge plate through the counterweight rod and the connecting rod. By utilizing the vertical sliding of the counterweight rod and the hinged transmission of the connecting rod, the feeding opening and closing action of the feeding plate and the ash discharge opening and closing action of the ash discharge plate form a reverse linkage and interlocked control, achieving high adjustment precision and realizing the automated feeding effect of the feeding box.

[0016] Preferably, the buffer box has a plurality of first filters and a plurality of second filters arranged vertically inside; the plurality of first filters are located between the air inlet and the air outlet; the top of the buffer box has an air outlet; and the plurality of second filters are located above the air inlet.

[0017] By adopting the above technical solution, since carbon dioxide is denser than air, the carbon dioxide gas flows downward naturally after entering the buffer box. When it flows through multiple first filters, the particulate dust in the gas is filtered in multiple stages, ensuring that the carbon dioxide gas delivered to the curing chamber is clean and preventing dust from clogging the diversion pipe, jet hole and water spray hole. Other gases with lower density in the mixed gas flow upward and are filtered for dust by multiple sets of second filters above the air inlet before being discharged from the air outlet of the buffer box, preventing dust from leaking out and polluting the environment.

[0018] Preferably, the carbon dioxide supply unit for energy-saving building material production further includes a gas storage tank and a connecting pipe; one end of the connecting pipe is connected to the gas storage tank, and the other end is connected to the exhaust port; the gas storage tank is connected to multiple of the branch pipes.

[0019] By adopting the above technical solution, carbon dioxide gas can be continuously produced and stored in a gas storage tank. Once the gas storage tank is full, the carbon dioxide gas is discharged into the distribution pipe, ensuring that there is sufficient carbon dioxide gas in the distribution pipe.

[0020] Preferably, the connecting pipe has a vertical section and an inclined section; the vertical section of the connecting pipe is connected to the exhaust port; the inclined section is connected to the gas storage tank; and a cooling air duct is provided on the outer periphery of the inclined section.

[0021] By adopting the above technical solution, after the carbon dioxide gas is cooled by the cooling duct in the inclined section, the water vapor generated by the burning of wood chips can be condensed in the inclined section of the connecting pipe. On the one hand, this avoids excessive moisture entering the sealed tarpaulin, which would affect the moisture balance of the column concrete component; on the other hand, it prevents the high-temperature carbon dioxide gas from entering the curing chamber and accelerating the evaporation of moisture on the surface of the column concrete component due to excessive temperature, which would lead to problems such as shrinkage cracking and hydration reaction imbalance. This ensures the synergistic effect of carbon dioxide chemical curing and water curing, and further improves the curing and forming quality of the concrete component.

[0022] Preferably, an air inlet screen is provided around the combustion chamber; an air inlet space is formed between the air inlet screen and the side wall of the combustion chamber; an air intake fan is provided on the combustion chamber; the inlet of the air intake fan is connected to the cooling air duct; and the outlet of the air intake fan is connected to the air inlet space.

[0023] By adopting the above technical solution, the hot air that has completed heat exchange and absorbed the heat of carbon dioxide gas in the cooling air duct is directed to the air intake space between the combustion chamber and the air intake screen through the air intake fan. Then, it is fed into the combustion chamber through the air intake screen to participate in the fuel combustion operation. This completes the resource conversion of waste heat from cooling heat exchange to combustion-supporting hot air, and fully recovers the waste heat generated in the gas cooling process. There is no need to configure additional hot air heating equipment for the combustion chamber.

[0024] Preferably, the inclined section is provided with multiple water-proof nets; the bottom of the side wall of the inclined section is provided with a water guide pipe; the water guide pipe has multiple seepage outlets; the side wall of the buffer box has a water inlet; the water inlet is connected to the water guide pipe; the water inlet is located above the multiple first filter nets.

[0025] By adopting the above technical solution, the collected liquid water enters the water guide pipe through the seepage port at the bottom of the inclined section and is discharged into the buffer tank above the first filter screen. When the water flows down along the first filter screen, it can wash and clean the dust attached to the surface of the filter screen, achieving the self-cleaning effect of the filter screen. The water carrying dust is mixed with dust, which greatly reduces the amount of carbon dioxide gas dissolved in the water. The barrier net below the exhaust port further reduces the contact area between carbon dioxide and the water at the bottom of the tank, maximizing the retention of effective carbon dioxide gas and ensuring the carbonization gas supply concentration in the curing chamber.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The pumping unit can draw water from the flexible annular groove to the branch pipe. The downward flow of carbon dioxide gas in the diversion pipe will drive water to be sprayed upward from multiple spray holes in the branch pipe. On the one hand, it solves the problem of excessive water accumulation at the bottom of the sealing tarpaulin, and on the other hand, it reduces the amount of water vapor injected. It makes full use of the moisture in the internal space of the sealing tarpaulin, realizes the self-circulation effect of moisture in the sealing tarpaulin, and saves energy.

[0027] 2. The pumping unit adopts a structure with a built-in helical rod in the pumping pipe, in conjunction with propeller-shaped blades arranged circumferentially on the extension rod. It utilizes the vertical flow kinetic energy of the carbon dioxide gas flow in the diversion pipe during the curing process to drive the propeller-shaped blades to rotate, which in turn drives the extension rod and the helical rod to rotate coaxially. With the help of the helical rod's cyclonic transport effect in the pumping pipe, the pumping and upward pumping of the backflow curing water in the flexible annular groove is completed. This structure does not require additional electric pumping equipment, and relies entirely on the surplus kinetic energy of the carbon dioxide gas supply to achieve water circulation, completely eliminating the power consumption of the pumping process.

[0028] 3. When too much ash accumulates in the ash collection bin, causing its weight to exceed the weight of the counterweight rod, the ash is pressed down, causing the ash plate to rotate and opening the ash outlet. Simultaneously, the ash plate pushes the counterweight rod upward. The counterweight rod, through a connecting rod, lifts one end of the feeding plate upward and causes the other end of the ash outlet to swing downward, thus opening the feeding outlet. The amount of ash falling from the ash collection bin reflects the actual burning situation of the wood chips in the combustion chamber. The transmission unit mechanically links the feeding plate and the ash outlet plate through the counterweight rod and connecting rod. By utilizing the vertical sliding of the counterweight rod and the hinged transmission of the connecting rod, the feeding opening and closing action of the feeding plate and the ash discharging opening and closing action of the ash outlet plate form a reverse linkage and interlocked control, achieving high adjustment precision and realizing the automated feeding effect of the feeding box. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a green curing device for concrete components.

[0030] Figure 2 This is a schematic diagram of the internal structure of the sealed tarpaulin in the embodiment.

[0031] Figure 3 yes Figure 2 A magnified view of part A in the image.

[0032] Figure 4 This is a schematic diagram of the structure of the carbon dioxide supply unit for the production of energy-saving building materials in the embodiment.

[0033] Figure 5 This is a schematic diagram of the internal structure of the inclined section in the embodiment.

[0034] Figure 6 This is a schematic diagram of the water pipe structure in the embodiment.

[0035] Explanation of reference numerals in the attached figures: 1. Columnar concrete component; 2. Frame; 21. Sealing tarpaulin; 22. Diversion pipe; 221. Branch pipe; 23. Flexible annular groove; 3. Dedicated carbon dioxide supply unit for energy-saving building material production; 31. Combustion box; 311. Ash discharge screen; 312. Ash collection bin; 313. Ash outlet; 314. Ash discharge plate; 315. Air inlet screen; 316. Air inlet space; 317. Air outlet; 318. Annular baffle; 319. Annular filter screen; 32. Feeding box; 321. Feeding port; 322. Feeding plate; 33. Buffer box 331. First filter screen; 332. Second filter screen; 333. Air inlet; 334. Exhaust outlet; 335. Water inlet; 336. Barrier screen; 34. Air tank; 35. Connecting pipe; 351. Vertical section; 352. Inclined section; 3521. Water barrier screen; 353. Water guide pipe; 3531. Water inlet; 4. Pumping unit; 41. Pumping pipe; 42. Helical rod; 43. Extension rod; 44. Propeller blade; 5. Transmission unit; 51. Counterweight rod; 52. Connecting rod; 6. Cooling duct; 7. Air intake fan. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0037] This application discloses a green curing device for concrete components. (Refer to...) Figure 1-3The system includes a dedicated carbon dioxide supply unit 3 for energy-saving building material production and a frame 2 mounted on the outside of a columnar concrete component 1. A sealing tarpaulin 21 is installed around the outer periphery of the frame 2. The minimum distance between the sealing tarpaulin 21 and the columnar concrete component 1 is 5 cm. A flexible annular groove 23 is installed at the bottom of the frame 2. The flexible annular groove 23 is made of rubber. The outer side of the flexible annular groove 23 is connected to the sealing tarpaulin 21. The inner side of the flexible annular groove 23 wraps around the bottom of the columnar concrete component 1. Water flowing down from the sealing tarpaulin 21 and the surface of the columnar concrete component 1 collects within the flexible annular groove 23. Multiple diversion pipes 22 are vertically arranged on the frame 2. The top of each diversion pipe 22 is connected to the dedicated carbon dioxide supply unit 3 for energy-saving building material production. Unit 3 is used to fill the diversion pipe 22 with carbon dioxide gas; a pumping unit 4 is provided at the bottom of the diversion pipe 22; the pumping unit 4 is located in the flexible annular groove 23; a branch pipe 221 extending towards the columnar concrete member 1 is provided at the bottom of the diversion pipe 22; a spray hole with an upward opening is provided on the branch pipe 221; multiple air jet holes are provided vertically on multiple diversion pipes 22; the pumping unit 4 can pump water from the flexible annular groove 23 to the branch pipe 221. Since the carbon dioxide gas in the diversion pipe 22 flows downward, the carbon dioxide gas flow will drive water to be sprayed upward from the multiple spray holes of the branch pipe 221. On the one hand, it solves the problem of excessive water accumulation at the bottom of the sealing tarpaulin 21, and on the other hand, it reduces the amount of water vapor injected, making full use of the moisture in the internal space of the sealing tarpaulin 21 and saving energy.

[0038] Reference Figure 3 The pumping unit 4 includes a pumping pipe 41 and a screw rod 42. The top of the pumping pipe 41 is connected to the diversion pipe 22, and the bottom is located in the flexible annular groove 23. The screw rod 42 is rotatably installed inside the pumping pipe 41. An extension rod 43 is coaxially connected to the top of the screw rod 42. The top of the extension rod 43 extends upward and is located inside the diversion pipe 22. Multiple propeller-shaped blades 44 are evenly arranged around the extension rod 43. When the carbon dioxide gas flow in the diversion pipe 22 flows downward, it impacts the multiple propeller-shaped blades 44 and drives the extension rod 43 and the screw rod 42 to rotate, so that the screw rod 42 pumps the water in the flexible annular groove 23 upward into the branch pipe 221. The carbon dioxide gas pressure is fully utilized, and the multiple propeller-shaped blades 44 can agitate the carbon dioxide gas flow, thereby forming turbulence in the carbon dioxide gas flow at the branch pipe 221 and dispersing the water from the spray hole.

[0039] Reference Figure 4The energy-saving building material production carbon dioxide supply unit 3 includes a combustion chamber 31, a feeding box 32, a buffer box 33, a gas storage tank 34, and a connecting pipe 35. An outlet 317 is provided on the side wall of the combustion chamber 31. An inlet 333 and an outlet 334 are provided on the buffer box 33. The outlet 317 is connected to the inlet 333. The outlet 334 is connected to multiple branch pipes 22. The bottom of the feeding box 32 has a feeding port 321, which is connected to the combustion chamber 31. A feeding plate 322 is rotatably installed at the feeding port 321 to close the feeding port 321. The bottom of the combustion chamber 31 has an ash-collecting mesh 311. Below the ash-collecting mesh 311 is an ash-collecting hopper 312. The bottom of the ash-collecting hopper 312 has an ash-discharge port 313. An ash-discharge plate 314 is rotatably installed at the ash-discharge port 313 to block the ash-discharge port 313.

[0040] Wood chips are stored in the feeding hopper 32. After rotating the feeding plate 322 and opening the feeding port 321, the wood chips enter the combustion chamber 31 through the feeding port 321 and burn in the combustion chamber 31. The carbon dioxide gas produced after combustion enters the buffer chamber 33 from the gas outlet 317. An annular baffle 318 is provided at the top of the combustion chamber 31. An annular filter screen 319 is provided between the annular baffle and the side wall of the combustion chamber 31. The annular baffle and the annular filter screen 319 cover the gas outlet 317 to prevent the wood chips in the feeding hopper 32 and most of the smoke and dust from the burning wood chips from entering the gas outlet 317. The ash produced by the burning wood chips falls from the ash net 311 into the ash collection bin 312. After rotating the ash discharge plate 314 and opening the ash discharge port 313, the ash in the ash collection bin 312 is discharged.

[0041] A transmission unit 5 is provided between the ash discharge plate 314 and the material discharge plate 322. The transmission unit 5 includes a counterweight rod 51 and a connecting rod 52. The counterweight rod 51 slides vertically on the combustion chamber 31. The bottom of the counterweight rod 51 is rotatably connected to the end of the ash discharge plate 314 away from the ash discharge port 313. One end of the connecting rod 52 is rotatably connected to the end of the material discharge plate 322 away from the material discharge port 321, and the other end is rotatably connected to the top of the counterweight rod 51. Under normal circumstances, the material discharge plate 322 blocks the material discharge port 321 under the tension of the counterweight rod 51. The ash discharge plate 314 blocks the ash discharge port 313 under the thrust of the counterweight rod 51. When too much ash and slag accumulates in the ash collection bin 312, so that the weight is greater than the weight of the counterweight rod 51 itself, the ash and slag press down on the ash discharge plate 314. At one end of 14, the ash outlet 313 is opened, and the ash is discharged from the ash outlet 313; at the same time, the ash discharge plate 314 rotates, thereby causing the other end of the ash discharge plate 314 to push the counterweight rod 51 upward; the counterweight rod 51 pushes one end of the feeding plate 322 upward through the connecting rod 52, and causes the other end of the ash discharge plate 314 to swing downward, thereby opening the feeding outlet 321; after the ash in the ash collection bin 312 is discharged, when the weight of the ash on the ash discharge plate 314 is less than that of the counterweight rod 51, the counterweight rod 51 moves downward and resets the feeding plate 322 and the ash discharge plate 314; in order to reduce the impact of the gravity of the wood chips in the feeding box 32 on the accuracy of the transmission unit 5, the feeding box 32 is set as an inclined cylindrical shape; so that most of the gravity of the wood chips acts on the side wall of the feeding box 32.

[0042] An air inlet screen 315 is provided around the wood chips inside the combustion chamber 31; an air inlet space 316 is formed between the air inlet screen 315 and the side wall of the combustion chamber 31; an air inlet fan 7 is provided on the combustion chamber 31; the outlet of the air inlet fan 7 is connected to the air inlet space 316, and the air inlet fan 7 can introduce air into the air inlet space 316. The air enters the wood chips from the air inlet screen 315, so that the wood chips can be fully burned.

[0043] Multiple first filters 331 and multiple second filters 332 are vertically arranged inside the buffer box 33; the multiple first filters 331 are located between the air inlet 333 and the exhaust port 334; the top of the buffer box 33 has an air outlet; the multiple second filters 332 are located above the air inlet 333; due to the heavy weight of carbon dioxide gas, the carbon dioxide entering the buffer box 33 will flow downwards, and the multiple first filters 331 can filter the particulate dust in the carbon dioxide to prevent it from entering the diversion pipe 22; other gases flow upwards and are discharged from the air outlet; the multiple second filters 332 can filter the dust in the upward-flowing gas to prevent dust pollution of the environment.

[0044] Reference Figures 4 to 6One end of the connecting pipe 35 is connected to the gas storage tank 34, and the other end is connected to the exhaust port 334; the gas storage tank 34 is connected to multiple branch pipes 22; carbon dioxide gas in the buffer tank 33 is discharged from the exhaust port 334 and enters the branch pipes 22 through the connecting pipe 35; the connecting pipe 35 has a vertical section 351 and an inclined section 352; the vertical section 351 of the connecting pipe 35 is connected to the exhaust port 334; the inclined section 352 is connected to the gas storage tank 34; a cooling air duct 6 is provided on the outer periphery of the inclined section 352; the inlet of the air blower 7 is connected to the cooling air duct. One end of the duct 6 is connected; the other end of the cooling duct 6 is connected to the outside atmosphere; under the suction of the air intake fan 7, air in the atmosphere is drawn into the cooling duct 6, so that a flowing airflow is formed in the cooling duct 6; especially during winter construction, the cooling duct 6 can draw in a large amount of cold air; however, the carbon dioxide airflow produced by burning wood chips contains moisture; after the high-temperature carbon dioxide airflow in the inclined section 352 passes through the cooling duct 6, the water vapor and carbon dioxide are cooled by the cooling duct 6; the water vapor is cooled and condenses into water and accumulates on the bottom wall of the inclined section 352.

[0045] To prevent moisture from being carried into the diversion pipe 22 by the carbon dioxide gas flow, multiple water-blocking screens 3521 are installed in the inclined section 352. These screens can block most of the moisture within the inclined section 352. A water guide pipe 353 is installed at the bottom of the side wall of the inclined section 352. Multiple seepage ports 3531 are provided on the water guide pipe 353, allowing water to enter the water guide pipe 353 through the seepage ports 3531. A water inlet 335 is provided on the side wall of the buffer tank 33, connected to the water guide pipe 353. The water inlet 335 is located above the multiple first filter screens 331. Water from the water guide pipe 353 flows through the filter screens 352. The water inlet 335 discharges into the first filter screen 331, carrying dust downwards. This effectively utilizes the moisture in the carbon dioxide to clean the first filter screen 331. To facilitate the downward flow of water from the first filter screen 331, it is tilted. The downward-flowing water collects at the bottom of the buffer tank 33. Because the downward-flowing water contains dust, the contact between carbon dioxide gas and water is reduced, effectively reducing the amount of carbon dioxide gas dissolved in water. A barrier screen 336 is installed below the exhaust port 334 to reduce the contact area between carbon dioxide gas and the water at the bottom of the buffer tank 33.

[0046] The working principle of the green curing device for concrete components in this application is as follows: The frame 2 is coaxially fitted onto the outside of the columnar concrete component 1. A sealing tarpaulin 21 is laid around the outer perimeter of the frame 2, maintaining a distance of no less than 5 cm between the sealing tarpaulin 21 and the surface of the columnar concrete component 1, forming an independent, sealed carbonation curing chamber. The flexible rubber annular groove 23 at the bottom of the frame 2 tightly wraps the bottom of the columnar concrete component 1 on the inside and is sealed to the bottom of the sealing tarpaulin 21 on the outside. This seals the bottom of the curing chamber, preventing carbon dioxide gas from leaking out and ensuring the carbonation curing effect. On the other hand, it can collect the condensate and residual water flowing down from the inner wall of the sealing tarpaulin 21 and the surface of the concrete component during the curing process, achieving centralized collection of water in the curing chamber and providing a basis for subsequent water recycling.

[0047] Under normal operating conditions, the counterweight rod 51 of the transmission unit 5 uses tension to block the discharge port 321 of the feeding plate 322 and pushes the ash discharge plate 314 to block the ash discharge port 313 of the ash collection bin 312. When the ash produced by the combustion of wood chips in the combustion box 31 falls into the ash collection bin 312 through the ash discharge net 311, and the accumulated weight of the ash exceeds the weight of the counterweight rod 51 itself, the ash presses down on the opening end of the ash discharge plate 314, and the ash discharge port 313 opens to achieve automatic discharge of the ash. Simultaneously, the other end of the ash discharge plate 314 pushes the counterweight rod 51 upward, and the counterweight rod 51 lifts the feeding plate 322 through the connecting rod 52, opening the feeding port 321 and allowing the wood chips in the feeding box 32 to be discharged. The wood chips are guided along the side wall of the inclined cylindrical box and fall into the combustion box 31 through the discharge port 321 to complete automatic feeding. When the ash and slag in the ash collection bin 312 are discharged and the weight is less than the weight of the counterweight rod 51, the counterweight rod 51 is reset, and the discharge plate 322 and the ash discharge plate 314 re-seal the corresponding openings. The air inlet screen 315 around the wood chips in the combustion box 31 forms an air inlet space 316 with the side wall of the combustion box 31. The air inlet fan 7 introduces external air into the air inlet space 316. The air enters the wood chip combustion area evenly through the air inlet screen 315, providing sufficient oxygen for the complete combustion of wood chips, ensuring that the wood chip combustion reaction is complete and continuously generating high-concentration carbon dioxide gas.

[0048] The carbon dioxide mixture produced by the combustion of wood chips undergoes primary filtration and gas-liquid separation. It is blocked by an annular baffle 318 at the top of the combustion chamber 31 and filtered by an annular filter screen 319, preventing wood chip particles and most of the combustion dust from entering the buffer chamber 33. Only the carbon dioxide mixture enters the buffer chamber 33 through the outlet 317. Multiple sets of first filters 331, vertically arranged inside the buffer chamber 33, are located between the inlet 333 and the outlet 334. Because carbon dioxide is denser than air, the mixture flows downwards naturally after entering the buffer chamber 33. As it passes through the first filters 331, particulate dust in the gas is further filtered, ensuring the cleanliness of the carbon dioxide gas delivered to the curing chamber and preventing dust from clogging the diversion pipe 22, jet nozzles, and water spray nozzles. Other gases with lower density in the mixture flow upwards, and after being filtered by multiple sets of second filters 332 above the inlet 333, they are discharged from the outlet at the top of the buffer chamber 33, preventing dust leakage and environmental pollution.

[0049] The purified carbon dioxide gas in the high-temperature gas cooling condensate and return water cleaning buffer tank 33 enters the connecting pipe 35 through the exhaust port 334. A cooling air duct 6 is coiled around the outer periphery of the inclined section 352 of the connecting pipe 35. While the blower 7 draws in external air for wood chip combustion, it simultaneously draws in atmospheric air (in winter, it can draw in low-temperature cold air) into the cooling air duct 6 to form a flowing airflow, cooling the high-temperature carbon dioxide gas flow in the inclined section 352. The water vapor carried in the carbon dioxide gas flow condenses into liquid water after cooling and accumulates on the bottom wall of the inclined section 352. Multiple sets of water-resistant meshes 3521 within the inclined section 352 form a barrier against the liquid water, preventing water from entering the diversion pipe 22 with the carbon dioxide gas flow. The accumulated liquid... Water enters the water guide pipe 353 through the seepage port 3531 at the bottom of the inclined section 352, and is discharged into the buffer tank 33 above the first filter screen 331 through the water inlet 335 on the side wall of the buffer tank 33. When the water flows down along the first filter screen 331, it can wash and clean the dust attached to the surface of the filter screen, realizing the self-cleaning of the filter screen. The water carrying dust eventually gathers at the bottom of the buffer tank 33. Because the water is mixed with dust, the amount of carbon dioxide gas dissolved by contact with water is greatly reduced. In addition, the barrier net 336 below the exhaust port 334 further reduces the contact area between carbon dioxide and the water at the bottom of the tank, maximizing the retention of effective carbon dioxide gas volume and ensuring the carbonization gas supply concentration in the curing chamber.

[0050] The clean carbon dioxide gas, after being cooled and isolated by water, enters the gas storage tank 34 through the inclined section 352 of the connecting pipe 35 to achieve stable storage. The gas storage tank 34 is connected to the multi-component flow pipe 22 on the frame 2. A pressurizing pump can be installed between the gas storage tank 34 and the multi-component flow pipe 22. The pressurizing pump continuously and stably delivers the carbon dioxide gas in the gas storage tank 34 to each flow pipe 22, providing a gas source guarantee for the carbonization curing and water pumping unit 4.

[0051] The downward-flowing carbon dioxide gas in the diversion pipe 22 impacts the propeller-shaped blades 44 at the top of the extension rod 43 of the pumping unit 4, causing the extension rod 43 to rotate coaxially, which in turn drives the spiral rod 42 in the pumping pipe 41 to rotate synchronously. The rotation of the spiral rod 42 generates an upward suction force, drawing the accumulated water in the flexible annular groove 23 upward into the branch pipe 221 at the bottom of the diversion pipe 22. The entire pumping operation is driven by the pressure energy of the carbon dioxide gas, requiring no additional electricity and achieving energy-efficient utilization. At the same time, the propeller-shaped blades 44 agitate the carbon dioxide gas during rotation, creating turbulence in the airflow at the branch pipe 221, providing the power basis for subsequent water dispersion and jetting.

[0052] The air-carrying water jet and the continuous downward flow of carbon dioxide in the water circulation diversion pipe 22 drive the water accumulated in the branch pipe 221 to be sprayed upward from the upward-opening water jet hole on the branch pipe 221. The upward-sprayed water flow is evenly dispersed in the curing chamber, which on the one hand quickly dissolves the water accumulated in the flexible annular groove 23, avoiding excessive water accumulation from damaging the bottom seal of the curing chamber and affecting the curing operation, and on the other hand, sends the collected water back to the upper part of the curing chamber to realize the recycling of water in the chamber, greatly reducing the amount of external water vapor injected, making full use of the self-owned water in the curing chamber, and reducing curing energy consumption.

[0053] The multi-component flow pipe 22 for carbonation curing of concrete components has multiple air jets opened vertically. The carbon dioxide gas flows downward with the airflow and is evenly and vertically injected into the curing chamber. The carbon dioxide gas diffuses fully in the sealed curing chamber and comes into full contact with the surface of the columnar concrete component 1, causing a carbonation reaction. This achieves carbonation curing of the concrete component and improves the strength and durability of the component. At the same time, the sprayed water flow and carbon dioxide gas work together to provide a suitable humidity environment for the carbonation reaction, further improving the carbonation curing effect.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A green curing device for concrete components, characterized in that: The system includes a dedicated carbon dioxide supply unit (3) for energy-saving building material production and a frame (2) fitted around the outside of a columnar concrete member (1); a sealing tarpaulin (21) is provided around the outer periphery of the frame (2); a flexible annular groove (23) is provided at the bottom of the frame (2); the outer side of the flexible annular groove (23) is connected to the sealing tarpaulin (21); the inner side of the flexible annular groove (23) wraps around the bottom of the columnar concrete member (1); multiple diversion pipes (22) are vertically arranged on the frame (2); The top of the diversion pipe (22) is connected to the carbon dioxide supply unit (3) for the production of energy-saving building materials; a pumping unit (4) is provided at the bottom of the diversion pipe (22); the pumping unit (4) is located in the flexible annular groove (23); the bottom of the diversion pipe (22) has a branch pipe (221) extending toward the columnar concrete member (1); the branch pipe (221) is provided with an upward-facing spray hole; multiple jet holes are provided vertically on multiple diversion pipes (22).

2. The green curing device for concrete components according to claim 1, characterized in that: The pumping unit (4) includes a pumping pipe (41) and a screw rod (42); the top of the pumping pipe (41) is connected to the diversion pipe (22), and the bottom is located in the flexible annular groove (23); the screw rod (42) is rotatably disposed in the pumping pipe (41); the top of the screw rod (42) is coaxially connected to an extension rod (43); the top end of the extension rod (43) extends upward and is located in the diversion pipe (22); the extension rod (43) is uniformly provided with multiple propeller-shaped blades (44) in the circumferential direction.

3. The green curing device for concrete components according to claim 1, characterized in that: The energy-saving building material production carbon dioxide supply unit (3) includes a combustion chamber (31), a feeding chamber (32), and a buffer chamber (33); the combustion chamber (31) has an air outlet (317) on its side wall; the buffer chamber (33) has an air inlet (333) and an exhaust port (334); the air outlet (317) is connected to the air inlet (333); the exhaust port (334) is connected to the plurality of diverter pipes (22); the feeding chamber (32) has a feeding port (321) at its bottom; the feeding port (321) is connected to the combustion chamber (31); a feeding plate (322) is rotatably installed at the feeding port (321); the feeding plate (322) is used to close the feeding port (321).

4. The green curing device for concrete components according to claim 3, characterized in that: The bottom of the combustion chamber (31) is provided with a lower ash screen (311); a collection hopper (312) is provided below the lower ash screen (311); the bottom of the collection hopper (312) has an ash outlet (313); an ash outlet plate (314) is rotatably provided at the ash outlet (313).

5. A green curing device for concrete components according to claim 4, characterized in that: A transmission unit (5) is provided between the ash discharge plate (314) and the feed plate (322); the transmission unit (5) includes a counterweight rod (51) and a connecting rod (52); the counterweight rod (51) slides vertically on the combustion chamber (31); the bottom of the counterweight rod (51) is rotatably connected to the end of the ash discharge plate (314) away from the ash discharge port (313); one end of the connecting rod (52) is rotatably connected to the end of the feed plate (322) away from the feed port (321), and the other end is rotatably connected to the top of the counterweight rod (51).

6. The green curing device for concrete components according to claim 3, characterized in that: The buffer box (33) is vertically arranged with a plurality of first filters (331) and a plurality of second filters (332); the plurality of first filters (331) are located between the air inlet (333) and the exhaust port (334); the top of the buffer box (33) has an air outlet; the plurality of second filters (332) are located above the air inlet (333).

7. A green curing device for concrete components according to claim 6, characterized in that: The energy-saving building material production carbon dioxide supply unit (3) also includes a gas storage tank (34) and a connecting pipe (35); one end of the connecting pipe (35) is connected to the gas storage tank (34), and the other end is connected to the exhaust port (334); the gas storage tank (34) is connected to multiple of the branch pipes (22).

8. A green curing device for concrete components according to claim 7, characterized in that: The connecting pipe (35) has a vertical section (351) and an inclined section (352); the vertical section (351) of the connecting pipe (35) is connected to the exhaust port (334); the inclined section (352) is connected to the gas storage tank (34); the outer periphery of the inclined section (352) is provided with a cooling air duct (6).

9. A green curing device for concrete components according to claim 8, characterized in that: An air inlet screen (315) is provided around the combustion chamber (31); an air inlet space (316) is formed between the air inlet screen (315) and the side wall of the combustion chamber (31); an air inlet fan (7) is provided on the combustion chamber (31); the inlet of the air inlet fan (7) is connected to the cooling air duct (6); and the outlet of the air inlet fan (7) is connected to the air inlet space (316).

10. A green curing device for concrete components according to claim 8, characterized in that: Multiple water-proof nets (3521) are provided inside the inclined section (352); a water guide pipe (353) is provided at the bottom of the side wall of the inclined section (352); multiple seepage ports (3531) are opened on the water guide pipe (353); a water inlet (335) is opened on the side wall of the buffer box (33); the water inlet (335) is connected to the water guide pipe (353); the water inlet (335) is located above the multiple first filter nets (331).

Images