Mass concrete temperature control device and use method thereof

Abstract

The invention relates to a mass concrete temperature control device and a using method thereof, and belongs to the technical field of building construction.The mass concrete temperature control device comprises a concrete temperature control stirring mechanism, a concrete temperature control curing mechanism and a control mechanism, the concrete temperature control stirring mechanism comprises a stirring barrel and a cooling assembly, and the cooling assembly comprises a water pump and a connecting water pipe; a stirring cavity and a cooling cavity are formed in the stirring barrel, a stirring assembly is arranged in the stirring cavity, and the cooling cavity is connected with a water pump through a connecting water pipe; the concrete temperature control curing mechanism comprises a plurality of embedded pipes, the embedded pipes are embedded in concrete, cooling pipes are connected in series between the embedded pipes, and the cooling pipes are connected with a water pump through a connecting water pipe; the control mechanism comprises an induction piece and a controller, the induction piece is installed on the embedded pipe, and the water pump and the induction piece are electrically connected with the controller. The mass concrete temperature control device is good in temperature control effect, low in installation difficulty and excellent in concrete forming quality.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and particularly relates to a mass concrete temperature control device and a use method thereof. Background Art

[0002] Mass concrete technology is widely used in modern engineering technology, and concrete temperature control is a measure taken during the concrete construction process to prevent concrete cracks caused by temperature reasons. Concrete temperature control must be strictly implemented during concrete construction to ensure the safety and normal use of the building structure.

[0003] A Chinese patent discloses a temperature control device for large-volume concrete (authorization publication number CN219908942U). This patented technology discloses a temperature control device for large-volume concrete, comprising a mounting assembly, on which a cooling assembly and a temperature detection assembly are respectively mounted. The temperature detection assembly includes multiple temperature sensors and multiple embedded pipes, one of the temperature sensors being disposed within the embedded pipes, the embedded pipes being configured to be inserted into concrete, and the cooling assembly including a cooling pipe and a refrigerator, the refrigerator being connected to the cooling pipe. The mounting assembly can secure multiple embedded pipes and cooling pipes, allowing them to be simultaneously embedded in concrete, which is convenient to operate. Furthermore, after the cooling pipes and embedded pipes are mounted on the mounting assembly, the relative positions of the cooling pipes and embedded pipes, as well as the relative positions of the multiple embedded pipes, are fixed. This eliminates the need to adjust the positions of the embedded pipes and cooling pipes later, thereby improving the accuracy of the installation positions of the cooling pipes and embedded pipes. This patented technology solves the problem in the prior art of controlling the temperature inside a large-volume concrete structure by pre-burying a through pipe. After the concrete construction is completed, water is passed through the through pipe to reduce the temperature inside the concrete structure through the water flow. However, the cooling speed of this method cannot be adjusted because the cooling speed depends on the temperature of the water flow. The cooling speed of the concrete cannot be too fast, but if the cooling is too slow, it will also affect the construction efficiency. The temperature inside the concrete is also measured through the pre-buried pipe method. The PVC pipe is inserted into the concrete, and then the temperature sensor is placed in the pre-buried pipe for measurement. In order to ensure the accuracy of the measurement, it is necessary to ensure that the depth and spacing of each pre-buried pipe inserted into the concrete are consistent. Inserting the pre-buried pipe is a manual operation, and it is not easy to grasp the position of the pre-buried pipe.

[0004] However, in existing technologies, the temperature of the concrete can be affected by the aggregate during mixing due to prolonged exposure to sunlight. Furthermore, the pre-buried cooling pipes remain in the construction site after the concrete solidifies, isolating the concrete from the pre-buried cooling pipes. This can negatively impact the integrity of the concrete during subsequent concrete filling and sealing. Therefore, a large-volume concrete temperature control device is needed to address the issues of existing concrete temperature control devices, such as poor temperature control, difficult installation, and low concrete quality. Summary of the Invention

[0005] The object of the present invention is to provide a mass concrete temperature control device and a method of using the same to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a large-volume concrete temperature control device, comprising a concrete temperature-controlled mixing mechanism, a concrete temperature-controlled curing mechanism, and a control mechanism, wherein the concrete temperature-controlled mixing mechanism comprises a mixing barrel and a cooling assembly, wherein the cooling assembly comprises a water pump and a connecting water pipe; a mixing chamber and a cooling chamber are provided inside the mixing barrel, wherein the mixing chamber is provided with a mixing assembly, and the cooling chamber is connected to the water pump via a connecting water pipe; the concrete temperature-controlled curing mechanism comprises a plurality of embedded pipes, wherein the embedded pipes are embedded in the concrete, and cooling pipes are connected in series between the embedded pipes, and the cooling pipes are connected to the water pump via a connecting water pipe; the control mechanism comprises a sensor and a controller, wherein the sensor is installed in the embedded pipe to detect the temperature inside the embedded pipe, and the water pump and the sensor are electrically connected to the controller respectively.

[0007] Preferably, the concrete temperature-controlled mixing mechanism is further provided with a frame, and the mixing barrel includes a positioning barrel and a mixing barrel; the positioning barrel is fixedly mounted on the frame, and the positioning barrel is open at the top and bottom, and has a hollow structure inside, and the mixing barrel is installed through the positioning barrel, and an annular cooling chamber is formed between the two; a feeding assembly is provided on the top of the mixing barrel, and the bottom extends to the outside of the positioning barrel, and a concrete discharge port is provided at the bottom; the feeding assembly includes a feeding barrel and a cooling water washing box; the feeding barrel is installed on the mixing barrel, and its discharge port is connected to the mixing barrel; the cooling water washing box is installed on the frame through a support frame, and the box body is connected to the water pump through a connecting water pipe.

[0008] Preferably, a positioning rod is rotatably installed in the loading barrel; a leakage auger is fixedly installed on the outside of the positioning rod and located on the inside of the loading barrel, and one end of the positioning rod extends to the outside of the loading barrel to form a connecting end; a first motor is installed at the connecting end, and a sealing shell is installed at the position corresponding to the loading barrel and the first motor, and the sealing shell is sleeved on the outside of the first motor; the first motor is electrically connected to the controller.

[0009] Preferably, a cooling water washing box is installed on the lower side of the upper barrel, and a limiting frame is installed at the position corresponding to the mixing drum and the discharge port of the upper barrel, and a winding roller is rotatably installed on the top of the limiting frame. The barrel body on the discharge port side of the upper barrel is rotatably installed on the limiting frame through a pin shaft, and the barrel body of the upper barrel near the discharge port side is provided with a hanging ring, a steel wire rope is wound around the winding roller, and the end of the steel wire rope away from the winding roller is fixedly connected to the hanging ring; a second motor is installed on the limiting frame, the power end of the second motor is connected to the winding roller, and the second motor is electrically connected to the controller.

[0010] Preferably, the loading barrel is installed in a horizontal initial state on the limiting frame, and a telescopic sleeve is installed at the feeding port of the loading barrel, and the top of the telescopic sleeve is connected to the feeding hopper; a feeding support frame is installed at the corresponding position of the cooling water washing box and the feeding hopper, and the feeding port is fixedly installed on the inner side of the feeding support frame; a water mesh groove is opened in the middle of the outer side of the loading barrel.

[0011] Preferably, the mixing drum includes a material drum and a mixing drum body; the material drum is rotatably installed on the top of the mixing drum body, and the upper material drum is installed on the material drum through a limiting frame; the mixing drum body is rotatably installed inside the positioning drum, and a cooling chamber is formed between the two; a load-bearing top frame is fixedly installed between the material drum and the positioning drum, and a gear ring is fixedly installed on the top of the mixing drum body located outside the positioning drum, and a gear is meshed on the gear ring. A third motor is installed at a position corresponding to the load-bearing top frame and the gear, and the power end of the third motor is connected to the gear; a stirring rod is provided inside the mixing drum body, and the top end of the stirring rod is rotatably installed through the material drum, and the top end of the stirring rod is connected to a fourth motor, and the stirring rod is located inside the mixing drum body and the rod body is installed with a stirring frame; the third motor and the fourth motor are electrically connected to the controller respectively; the rotation directions of the mixing drum body and the stirring rod are opposite.

[0012] Preferably, a water inlet pipe and a water outlet pipe are provided on the body of the cooling water washing box; the water outlet pipe is connected to the water inlet end of the water pump through a connecting water pipe, the water outlet end of the water pump is connected to a filter, the water outlet end of the filter is connected to a chiller, the water outlet end of the chiller is connected to the cooling chamber through a connecting water pipe, the water outlet end of the cooling chamber is connected to the water inlet end of the cooling pipe of the concrete temperature control and curing mechanism through a connecting water pipe, and the water outlet end of the cooling pipe of the concrete temperature control and curing mechanism is connected to the water inlet pipe of the cooling water washing box through a connecting water pipe.

[0013] Preferably, the embedded pipe includes a cooling vertical pipe and an insulating inner frame; the outer side of the cooling vertical pipe is provided with scale marks along the pipe body, and the inner side is fixedly installed with an insulating inner frame, forming a U-shaped pipe between the two; both ends of the top of the U-shaped pipe are sealed with joints for connecting the cooling pipe; water spray pipes are evenly spaced on the cooling pipe, the water spray pipes are connected to an external water source, and an atomizing nozzle is provided at the bottom of the water spray pipe, and the atomizing nozzle is equipped with a water source switch solenoid valve.

[0014] Preferably, a slider is installed on the inner side of the insulation inner frame for radial sliding, a screw is threadedly connected to the middle part of the slider, and the top end of the screw is connected to the fifth motor; a temperature sensor and a distance height sensor are installed on the slider; a mounting bracket is installed on the outer side of the cooling vertical pipe, a humidity sensor is installed on the frame of the mounting bracket facing the concrete floor, and a locking bolt is installed between the mounting bracket and the cooling vertical pipe; the temperature sensor, distance height sensor, humidity sensor and water source switch solenoid valve are electrically connected to the controller respectively.

[0015] The present invention also provides a method for using a volume concrete temperature control device, comprising the following steps: S1. Concrete material cooling and loading: According to the type of concrete material, two loading methods are selected for loading; The first feeding method is: the material is a powdery and lightweight material. The material enters the feeding drum through the feed hopper. The second motor drives the winding roller, which drives the wire rope to adjust the feeding drum to a horizontal state. The first motor drives the positioning rod, which drives the leak hole auger to transfer the material into the mixing drum. The second loading method is as follows: solid materials enter the loading drum through the feed hopper. The second motor drives the winding roller, which drives the wire rope to adjust the loading drum to an inclined state. The loading drum rotates along the limiting frame under gravity and falls into the cooling water washing box. The material in the loading drum is cooled by the cooling water in the cooling water washing box. After the material is cooled, the first motor drives the positioning rod, which drives the leak hole auger to transfer the material into the mixing drum. S2. Concrete cooling and mixing: After the concrete material is transferred into the mixing drum, the water pump is started to extract water from the cooling water washing tank and pass it through the filter to filter out impurities in the water source. After the water source is filtered, it enters the chiller for cooling. After the chiller cools the water source, it is discharged into the annular cooling chamber through the connecting water pipe, and the drum wall of the mixing drum is water-cooled to continuously cool the concrete during mixing. During mixing, the controller starts the fourth motor to drive the stirring rod to rotate, thereby driving the mixing frame to stir the concrete material. At the same time, the controller starts the third motor to drive the gear to rotate. The gear meshes with the gear ring, driving the mixing drum body to rotate, and the mixing drum body and the mixing frame rotate in opposite directions. S3. Concrete curing and cooling: Select an appropriate number of embedded pipes according to the specifications of the large-volume concrete; then install the embedded pipes. During installation, apply a release agent to the outside of the cooling vertical pipes; connect the embedded pipes in series with cooling pipes through their joints; install a water spray pipe on the cooling pipe and connect it to an external water source; during concrete curing, the heat of the concrete is transferred to the cooling vertical pipes, which transfer the heat to the cooling water washing tank through the cooling water in the pipes. After cooling by the chiller, the concrete is circulated to cool down; the controller controls the water pump flow rate and opens and closes the atomizing nozzles on the water spray pipes through the sensing signals of the temperature sensor, distance height sensor and humidity sensor, thereby spraying and cooling the concrete surface.

[0016] Beneficial effects: 1. The present invention provides a concrete temperature-controlled mixing mechanism and a concrete temperature-controlled curing mechanism, wherein the concrete temperature-controlled mixing mechanism includes a mixing barrel and a cooling assembly, and the cooling assembly includes a water pump and a connecting water pipe. The concrete temperature-controlled curing mechanism includes a plurality of pre-buried pipes and a cooling pipe. The mixing barrel of the present invention is internally provided with a mixing chamber and a cooling chamber. The mixing chamber is used for concrete mixing, while the cooling chamber is located outside the mixing chamber. The cooling chamber is connected to the water pump via a connecting water pipe, so that cooling water can be circulated to the cooling chamber through the water pump, thereby controlling the concrete temperature during mixing and improving the concrete quality. The pre-buried pipes are connected in series via the cooling pipe, and the cooling pipe is then connected to the water pump via a connecting water pipe, so that the cooling assembly can provide cooling water to the concrete temperature-controlled curing mechanism, thereby reducing the manufacturing cost of large-volume concrete temperature control devices.

[0017] 2. Based on the above, the mixing barrel of the present invention includes a positioning barrel and a mixing barrel; the positioning barrel is open at the top and bottom and has a hollow interior structure, and the mixing barrel is installed through the positioning barrel, forming an annular cooling chamber between the two; a feeding assembly is provided on the top of the mixing barrel, and the bottom extends to the outside of the positioning barrel, and a concrete discharge port is provided at the bottom; the feeding assembly includes a feeding barrel and a cooling water washing box; the feeding barrel is installed on the mixing barrel, and its discharge port is connected to the mixing barrel; the cooling water washing box is connected to the water pump via a connecting water pipe. The present invention provides a feeding barrel and a cooling water washing box to achieve water washing and cooling of the material in the feeding barrel by the cooling water washing box, so as to control the temperature of the concrete material and avoid high material temperature affecting the concrete quality.

[0018] 3. Based on the above, the cooling water washing box of the present invention is installed on the lower side of the upper barrel, and a limiting frame is installed at the position corresponding to the discharge port of the mixing drum and the upper barrel. A winding roller is rotatably installed on the top of the limiting frame. The barrel body on the discharge port side of the upper barrel is rotatably installed on the limiting frame through a pin shaft, and the barrel body of the upper barrel near the discharge port is provided with a hanging ring. A steel wire rope is wound around the winding roller, and the end of the steel wire rope away from the winding roller is fixedly connected to the hanging ring. In this way, two different feeding methods can be selected for loading according to the type of concrete material. When loading concrete aggregate, the temperature of the aggregate is high due to the sunlight. The present invention controls the winding roller wire rope to adjust the upper barrel to fall into the cooling water washing box below to cool the aggregate, and then transfer it to the mixing drum for mixing to improve the quality of the concrete. For powdery materials such as cement and sand, there is no need to cool them, and the upper barrel adopts a horizontal state to transfer the material. The present invention adopts different loading methods according to the adaptability of material types to improve the versatility and applicability of the equipment, so that the same equipment can process multiple different types of materials.

[0019] 4. Based on the above, the mixing drum of the present invention comprises a material drum and a mixing drum body. The material drum is rotatably mounted on the top of the mixing drum body for feeding materials. The mixing drum body is rotatably mounted on the positioning drum, and a stirring rod is rotatably mounted within the mixing drum body for mixing concrete materials. Furthermore, the rotation direction of the mixing drum body and the stirring rod of the present invention are opposite, so that the mixing drum body and the stirring rod rotate relative to each other during mixing, thereby improving material mixing efficiency.

[0020] 5. Based on the above, the cooling water washing box of the present invention is provided with a water inlet pipe and a water outlet pipe on the box body; the water outlet pipe is connected to the water inlet of the water pump through a connecting water pipe, the water outlet of the water pump is connected to a filter, the water outlet of the filter is connected to a chiller, the water outlet of the chiller is connected to the cooling chamber through a connecting water pipe, the water outlet of the cooling chamber is connected to the water inlet of the cooling pipe of the concrete temperature control and curing mechanism through a connecting water pipe, and the water outlet of the cooling pipe of the concrete temperature control and curing mechanism is connected to the water inlet pipe of the cooling water washing box through a connecting water pipe. In this way, the concrete material is cooled, the temperature is controlled, and the concrete is cured and cooled, which can ensure that the concrete can still achieve the expected strength and durability in a high temperature environment, thereby ensuring the overall quality of the construction project. Cooling the concrete material before mixing can reduce the internal temperature rise of the concrete during mixing, and the heat conduction water cooling method of the concrete during mixing effectively reduces the temperature rise of the concrete during mixing in high temperature weather.

[0021] 6. On the basis of the above, in order to ensure the curing effect of concrete and improve the quality of concrete molding. The embedded pipe of the present invention includes a cooling vertical pipe and an insulating inner frame; the insulating inner frame is fixedly installed on the inner side of the cooling vertical pipe, forming a U-shaped pipe between the two; the top ends of the U-shaped pipe are sealed with joints for connecting to the cooling pipe; water spray pipes are evenly spaced on the cooling pipe, and the water spray pipes are connected to an external water source. The bottom of the water spray pipe is equipped with an atomizing nozzle, and the atomizing nozzle is equipped with a water source switch solenoid valve. In this way, heat conduction is achieved through the water flowing inside the cooling vertical pipe, effectively reducing the internal temperature of the concrete and avoiding concrete cracking caused by temperature stress. Low-temperature curing helps the concrete harden slowly and reduces the occurrence of internal micro cracks, thereby improving the compressive strength and durability of the concrete. The cooling vertical pipe quickly reduces the temperature of the concrete, shortens the curing time, advances subsequent construction, and improves the overall construction progress. The provision of a water spray pipe to achieve moisturizing curing of the concrete can effectively improve the performance of the concrete in hot weather, such as crack resistance and moisture retention.

[0022] 7. On the basis of the above, a slider is installed on the inner side of the thermal insulation inner frame of the present invention for radial sliding, and a temperature sensor and a distance height sensor are installed on the slider; a mounting bracket is installed on the outer side of the cooling vertical pipe, and a humidity sensor is installed on the frame of the mounting bracket facing the concrete floor. Scale marks are provided along the outer side of the cooling vertical pipe. When installing the cooling vertical pipe, the embedded depth can be accurately installed according to the scale marks on the outer side of the pipe to ensure the installation accuracy of the embedded pipe. By controlling the position of the slider in the cooling vertical pipe, the internal temperature of the concrete at the corresponding position can be accurately measured. A humidity sensor is set on the outer side of the cooling vertical pipe to capture the temperature and humidity changes inside and on the surface of the concrete in real time, and transmit the data to the controller to judge the current state of the concrete and the maintenance measures that need to be taken, which is conducive to automatic control of the concrete temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a mass concrete temperature control device according to an embodiment; Figure 2 A top view of the structure of a mass concrete temperature control device according to an embodiment; Figure 3 Schematic diagram of the structure of a concrete temperature control and mixing mechanism of a mass concrete temperature control device according to an embodiment; Figure 4 Schematic diagram of the structure explosion of the concrete temperature control and mixing mechanism of the mass concrete temperature control device of the embodiment; Figure 5 A structural cross-sectional view of a concrete temperature control and mixing mechanism of a mass concrete temperature control device according to an embodiment; Figure 6 Schematic diagram of the structure of the loading barrel of the mass concrete temperature control device of the embodiment; Figure 7 Schematic diagram of the structure of the concrete temperature control and curing mechanism of the mass concrete temperature control device of the embodiment; Figure 8 Schematic diagram of the explosion structure of the embedded pipe of the mass concrete temperature control device of the embodiment; Figure 9 Schematic diagram of the structure of the embedded pipe of the mass concrete temperature control device of the embodiment; Figure 10 Schematic diagram of the installation structure of the slider and the lead screw of the mass concrete temperature control device according to the embodiment; Figure 11 A schematic diagram of the installation structure of the watering and moisturizing pipe and the water spraying pipe of the mass concrete temperature control device of the embodiment; Figure 12 for Figure 9 A magnified schematic diagram of the structure in the middle.

[0024] In the figure: 1. Concrete temperature control mixing mechanism; 101. Frame; 102. Support frame; 103. Cooling water washing box; 104. Feed support frame; 105. Mounting top frame; 106. Water pump; 107. Filter; 108. Chiller; 109. Controller; 11. Mixing barrel; 1101. Positioning barrel; 1102. Load-bearing top frame; 1103. Material barrel; 1104. Mixing barrel body; 1105. Gear ring; 1106. Gear; 1107. Third motor; 1108. Mixing rod; 1109. Mixing frame; 1110. Fourth motor; 1111. Discharge pipe; 1112. Valve; 12. Cooling assembly; 1201. Limiting frame; 1202. Winding roller; 1203. Second motor; 1204. Steel wire Rope; 1205, lifting ring; 1206, loading barrel; 1207, water-passing mesh trough; 1208, positioning rod; 1209, leakage auger; 1210, first motor; 1211, sealed shell; 2, concrete temperature control and maintenance mechanism; 21, butt joint body; 22, water sprinkler and moisturizing pipe; 2202, water spray pipe; 2203, solenoid valve; 2204, atomizing nozzle; 23, cooling pipe; 2301, cooling riser; 2302, scale mark; 2303, thermal insulation inner frame; 2304, screw rod; 2305, fifth motor; 2306, slider; 2307, temperature sensor; 2308, distance height sensor; 2309, mounting bracket; 2310, humidity sensor; 2311, locking bolt; 2312, butt joint. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0026] See also Figures 1-12 This embodiment provides a large-volume concrete temperature control device, including a concrete temperature-controlled mixing mechanism 1, a concrete temperature-controlled curing mechanism 2, and a control mechanism. The concrete temperature-controlled mixing mechanism includes a mixing drum 11 and a cooling assembly 12. The cooling assembly includes a water pump 106 and a connecting water pipe. The mixing drum is provided with a mixing chamber and a cooling chamber. The mixing chamber is provided with a mixing assembly. The cooling chamber is connected to the water pump via a connecting water pipe. The concrete temperature-controlled curing mechanism includes a plurality of embedded pipes, which are embedded in the concrete. Cooling pipes are connected in series between the embedded pipes. The cooling pipes are connected to the water pump via a connecting water pipe. The control mechanism includes a sensor and a controller 109. The sensor is installed in the embedded pipe to detect the temperature inside the embedded pipe. The water pump and the sensor are respectively electrically connected to the controller.

[0027] The concrete temperature-controlled mixing mechanism of this embodiment is also provided with a frame 101, and the mixing barrel includes a positioning barrel 1101 and a mixing barrel; the positioning barrel 1101 is fixedly installed on the mounting top frame 105 of the frame, and the positioning barrel is open at the top and bottom and has a hollow structure inside, and the mixing barrel is installed through the positioning barrel, and an annular cooling chamber is formed between the two; a feeding assembly 12 is provided on the top of the mixing barrel, and the bottom extends to the outside of the positioning barrel, and a concrete discharge pipe 1111 is provided at the bottom, and a control valve 1112 is provided on the discharge pipe; the feeding assembly includes a feeding barrel 1206 and a cooling water washing box 103; the feeding barrel is installed on the mixing barrel, and its discharge port is connected to the mixing barrel; the cooling water washing box 103 is installed on the frame through the support frame 102, and the box body is connected to the water pump through a connecting water pipe. In the present embodiment, a positioning rod 1208 is rotatably installed in the loading barrel; a leaking screw 1209 is fixedly installed on the outside of the positioning rod, and one end of the positioning rod extends to the outside of the loading barrel to form a connecting end; a first motor 1210 is installed at the connecting end, and a sealing shell 1211 is installed at the position corresponding to the loading barrel and the first motor, and the sealing shell is sleeved on the outside of the first motor; the first motor is electrically connected to the controller. The cooling water washing box 103 of the present embodiment is installed on the lower side of the loading barrel, and a limiting frame 1201 is installed at the position corresponding to the mixing drum and the loading barrel discharge port. A winding roller 1202 is rotatably installed on the top of the limiting frame, and the barrel body on the discharge port side of the loading barrel is rotatably installed on the limiting frame through a pin shaft, and the barrel body of the loading barrel near the discharge port is provided with a hanging ring 1205, a steel wire rope 1204 is wound around the winding roller, and the end of the steel wire rope away from the winding roller is fixedly connected to the hanging ring; a second motor 1203 is installed on the limiting frame, The power end of the second motor is connected to the winding roller, and the second motor 1203 is electrically connected to the controller 109. In addition, the loading barrel 1206 of this embodiment is installed in a horizontal initial state on the limiting frame 1201, and the feeding port of the loading barrel is installed with a telescopic sleeve, and the top of the telescopic sleeve is connected to the feeding hopper; the cooling water washing box 103 is installed with a feeding support frame 104 at a position corresponding to the feeding hopper, and the feeding port is fixedly installed on the inner side of the feeding support frame; a water mesh groove 1207 is opened in the middle part of the outer side of the loading barrel.

[0028] Furthermore, the mixing drum of this embodiment includes a material drum 1103 and a mixing drum body 1104; the material drum 1103 is rotatably installed on the top of the mixing drum body, and the upper material drum is installed on the material drum through a limiting frame; the mixing drum body 1104 is rotatably installed inside the positioning drum, and a cooling chamber is formed between the two; a load-bearing top frame 1102 is fixedly installed between the material drum 1103 and the positioning drum 1101, and a gear ring 1105 is fixedly installed on the top of the mixing drum body located outside the positioning drum, and a gear 1106 is meshed on the gear ring, and a third motor 1107 is installed at a position corresponding to the load-bearing top frame and the gear, and the power end of the third motor is connected to the gear; a stirring rod 1108 is provided inside the mixing drum body 1104, and the top end of the stirring rod is rotatably installed through the material drum, and the top end of the stirring rod is connected to the fourth motor 1110, and the stirring rod is located inside the mixing drum body and a stirring frame 1109 is installed; the third motor and the fourth motor are electrically connected to the controller respectively; the rotation directions of the mixing drum body and the stirring rod are opposite.

[0029] The cooling water washing box 103 of this embodiment is provided with a water inlet pipe and a water outlet pipe; the water outlet pipe is connected to the water inlet end of the water pump 106 through a connecting water pipe, the water outlet end of the water pump is connected to a filter 107, the water outlet end of the filter is connected to a chiller 108, the water outlet end of the chiller is connected to the cooling chamber through a connecting water pipe, the water outlet end of the cooling chamber is connected to the water inlet end of the cooling pipe of the concrete temperature control and curing mechanism through a connecting water pipe, and the water outlet end of the cooling pipe of the concrete temperature control and curing mechanism is connected to the water inlet pipe of the cooling water washing box through a connecting water pipe.

[0030] Furthermore, the concrete temperature control and curing mechanism of this embodiment includes twelve pre-buried pipes, arranged horizontally in four rows, with three pre-buried pipes per row, to form a rectangular concrete cooling zone. The pre-buried pipes are connected in series via cooling pipes, which are divided into a butt-joint pipe body 21 and a water-sprinkling and moisturizing pipe 22 based on their connection points. The butt-joint pipe body 21 is used to connect with the water outlet of the positioning cylinder's cooling chamber, the water inlet pipe of the cooling water washing tank, and the pre-buried pipes at the ends of two adjacent rows. The water-sprinkling and moisturizing pipe 22 connects two adjacent pre-buried pipes in each row.

[0031] The embedded pipe 23 of this embodiment includes a cooling vertical pipe 2301 and an insulating inner frame 2303; scale marks 2302 are provided along the outer side of the cooling vertical pipe, and an insulating inner frame 2303 is fixedly installed on the inner side, forming a U-shaped pipe between the two; both ends of the top of the U-shaped pipe are sealed with docking joints 2312 for connecting to the docking pipe body 21 or the water sprinkler and moisturizing pipe 22; water spray pipes 2202 are evenly spaced on the water sprinkler and moisturizing pipe 22, the water spray pipes are connected to an external water source, and an atomizing nozzle 2204 is provided at the bottom of the water spray pipe, and the atomizing nozzle is equipped with a water source switch solenoid valve 2203.

[0032] Furthermore, a slider 2306 is radially slidably installed on the inner side of the thermal insulation inner frame 2303 of this embodiment, a screw 2304 is threadedly connected to the middle part of the slider, and a fifth motor 2305 is connected to the top of the screw; a temperature sensor 2307 and a distance height sensor 2308 are installed on the slider; a mounting bracket 2309 is installed on the outer side of the cooling vertical pipe, a humidity sensor 2310 is installed on the frame of the mounting bracket facing the concrete floor, and a locking bolt 2311 is installed between the mounting bracket and the cooling vertical pipe; the temperature sensor, distance height sensor, humidity sensor and water source switch solenoid valve are electrically connected to the controller respectively.

[0033] In addition, this embodiment also provides a method for using a large-volume concrete temperature control device, comprising the following steps: S1, cooling and loading concrete materials during the concrete mixing stage: selecting two loading methods for loading according to the type of concrete materials; The first feeding method is: when the material is powdery and light, such as cement, sand, etc., the material enters the feeding drum through the feed hopper. The controller controls the second motor to drive the winding roller, which drives the wire rope to adjust the feeding drum to a horizontal state. Then the controller controls the first motor to drive the positioning rod, which drives the leak hole auger to transfer the material into the material drum, and then into the mixing drum body. The second feeding method is: when the material is solid, such as concrete aggregate, the internal temperature of the aggregate is too high due to long-term exposure to sunlight, which can easily affect the temperature of the concrete during mixing and lead to poor concrete molding quality. Therefore, the aggregate needs to be cooled before mixing. First, the aggregate enters the feeding barrel through the feed hopper. The controller controls the second motor to drive the winding roller, which drives the wire rope to adjust the feeding barrel to an inclined state. That is, the second motor drives the winding roller to rotate to release the wire rope, so that the wire rope is loosened. The lifting ring of the feeding barrel is not loose due to the loosening of the wire rope, so that the feeding barrel rotates along the limiting frame toward the cooling water washing box under the action of gravity, and then falls into the cooling water washing box, so that one end of the feeding barrel enters the water tank. The cooling water in the cooling water washing box enters the barrel through the water mesh groove of the feeding barrel. The material in the feeding barrel is cooled by the cooling water of the cooling water washing box. After the material is cooled, the controller controls the first motor to drive the positioning rod, which drives the leakage hole auger to transfer the material into the material barrel, and then into the mixing barrel body. S2. Cooling concrete during concrete mixing: After the concrete material is transferred into the mixing drum body, the water pump is started to extract water from the cooling water washing box and pass it through the filter to filter out impurities in the water source. After being filtered, the water source enters the chiller for cooling. After the chiller cools the water source, it is discharged into the annular cooling cavity through the connecting water pipe, and the barrel wall of the mixing drum body is water-cooled to continuously cool the concrete during mixing. During mixing, the controller starts the fourth motor to drive the stirring rod to rotate, and then drives the mixing frame to stir the concrete material. At the same time, the controller starts the third motor to drive the gear to rotate, and the gear is engaged with the gear ring to drive the mixing drum body to rotate. The rotation directions of the mixing drum body and the mixing frame are opposite, which makes the concrete mixing efficiency higher.

[0034] S3. Concrete curing and cooling during concrete curing: Select the appropriate number of embedded pipes based on the specifications of the bulk concrete. Install the embedded pipes in four rows, three per row. Before installation, apply release agent to the outside of the cooling risers. Adjust the height of the embedded pipes using the mounting brackets on the outside of the cooling risers. Specifically, adjust the height based on the height of the bulk concrete. Loosen the locking bolts and then install the embedded pipes into the concrete. Installers determine the installation height based on the scale markings on the outside of the cooling risers. Once the desired height is reached, tighten the locking bolts to lock the height. Next, connect the cooling pipes to connect the embedded pipes in series. Specifically, connect the sprinkler and moisturizing pipes between each row of embedded pipes. Connect the connecting pipes between rows of embedded pipes. Finally, connect the connecting pipes to the water outlet of the positioning cylinder cooling chamber and the water inlet of the cooling water washing tank, respectively. After the connection between the water pipe and the cooling pipe is completed, the water spray pipe is installed, and the water spray pipe is installed on the water moisturizing pipe and connected to an external water source. During concrete curing, the heat of the concrete is transferred to the cooling riser. The cooling riser transfers the heat to the cooling water washing tank through the cooling water in the pipe. After cooling by the chiller, the concrete is circulated to cool down. The controller controls the water pump flow rate and opens and closes the atomizing nozzle on the water spray pipe based on the sensing signals of the temperature sensor, the distance height sensor, and the humidity sensor, spraying and cooling the concrete surface, continuously humidifying the concrete surface and reducing the cracking of the concrete surface due to overheating and drying. It should be noted that the temperature sensor and the distance height sensor of this embodiment are installed on the slider, and the slider is slidably installed in the cooling riser. When it is necessary to detect the temperature of concrete at different depths, the controller starts the fifth motor to drive the screw to rotate, thereby driving the slider to slide radially. The fifth motor of the controller drives the slider to slide to the target depth based on the feedback signal of the distance height sensor to ensure the accuracy of the detection data, thereby accurately controlling the speed of the water pump.

[0035] Working Principle: The large-volume concrete temperature control device and its use method of this embodiment can ensure that concrete can still achieve the expected strength and durability in a high-temperature environment through cooling of the concrete material, temperature monitoring, and curing and cooling, thereby ensuring the overall quality of the project. This embodiment cools the concrete before mixing to reduce the internal temperature rise of the concrete during mixing, and the heat conduction water cooling method during concrete mixing effectively reduces the temperature rise during concrete mixing in high temperature weather. During concrete curing, this embodiment can effectively improve the performance of concrete in high temperature weather, such as crack resistance and moisture retention, through cooling and moisturizing curing. By providing temperature sensors and humidity sensors, it can capture the temperature and humidity changes inside and on the surface of the concrete in real time, and transmit the data to the controller to determine the current state of the concrete and the curing measures that need to be taken, which is conducive to automatically controlling the temperature of the concrete in high temperature weather to improve the quality of concrete molding.

[0036] As above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes may be made to it in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A mass concrete temperature control device, comprising a concrete temperature control mixing mechanism, a concrete temperature control curing mechanism, and a control mechanism, characterized in that: The concrete temperature control mixing mechanism includes a mixing barrel and a cooling assembly, and the cooling assembly includes a water pump and a connecting water pipe; a mixing chamber and a cooling chamber are provided inside the mixing barrel, a mixing assembly is provided in the mixing chamber, and the cooling chamber is connected to the water pump through a connecting water pipe; the concrete temperature control and curing mechanism includes a plurality of embedded pipes, which are embedded in the concrete, and cooling pipes are connected in series between the embedded pipes, and the cooling pipes are connected to the water pump through the connecting water pipe; the control mechanism includes a sensor and a controller, the sensor is installed on the embedded pipe to detect the temperature inside the embedded pipe, and the water pump and the sensor are electrically connected to the controller respectively.

2. A mass concrete temperature control device according to claim 1, characterized in that: The concrete temperature-controlled mixing mechanism is also provided with a frame, and the mixing barrel includes a positioning barrel and a mixing barrel; the positioning barrel is fixedly installed on the frame, and the positioning barrel is open at the top and bottom and has a hollow structure inside, and the mixing barrel is installed through the positioning barrel, and an annular cooling chamber is formed between the two; a feeding assembly is provided on the top of the mixing barrel, and its bottom extends to the outside of the positioning barrel, and a concrete discharge port is provided at the bottom; the feeding assembly includes a feeding barrel and a cooling water washing box; the feeding barrel is installed on the mixing barrel, and its discharge port is connected to the mixing barrel; the cooling water washing box is installed on the frame through a support frame, and the box body is connected to the water pump through a connecting water pipe.

3. A mass concrete temperature control device according to claim 2, characterized in that: A positioning rod is rotatably installed in the loading barrel; a leakage auger is fixedly installed on the outside of the positioning rod and located on the inside of the loading barrel, and one end of the positioning rod extends to the outside of the loading barrel to form a connecting end; a first motor is installed on the connecting end, and a sealing shell is installed at the position corresponding to the loading barrel and the first motor, and the sealing shell is sleeved on the outside of the first motor; the first motor is electrically connected to the controller.

4. A mass concrete temperature control device according to claim 2, characterized in that: The cooling water washing box is installed on the lower side of the upper material drum, and a limiting frame is installed at a position corresponding to the mixing drum and the discharge port of the upper material drum. A winding roller is rotatably installed on the top of the limiting frame, and the cylinder body on the discharge port side of the upper material drum is rotatably installed on the limiting frame through a pin shaft, and the cylinder body of the upper material drum adjacent to the discharge port side is provided with a hanging ring, a steel wire rope is wound around the winding roller, and the end of the steel wire rope away from the winding roller is fixedly connected to the hanging ring; a second motor is installed on the limiting frame, the power end of the second motor is connected to the winding roller, and the second motor is electrically connected to the controller.

5. A mass concrete temperature control device according to claim 4, characterized in that: The loading barrel is installed on the limiting frame in an initial horizontal state, and a telescopic sleeve is installed at the feeding port of the loading barrel, and the top of the telescopic sleeve is connected to the feeding hopper; a feeding support frame is installed at the corresponding position of the cooling water washing box and the feeding hopper, and the feeding port is fixedly installed on the inner side of the feeding support frame; a water mesh groove is opened on the middle part of the outer side of the loading barrel.

6. A mass concrete temperature control device according to claim 2, characterized in that: The mixing drum includes a material drum and a mixing drum body; the material drum is rotatably installed on the top of the mixing drum body, and the upper material drum is installed on the material drum through a limiting frame; the mixing drum body is rotatably installed inside the positioning drum, and the cooling chamber is formed between the two; a load-bearing top frame is fixedly installed between the material drum and the positioning drum, and the top of the mixing drum body is located on the outside of the positioning drum and is fixedly installed with a gear ring, and a gear is meshed on the gear ring, and a third motor is installed at a position corresponding to the load-bearing top frame and the gear, and the power end of the third motor is connected to the gear; a stirring rod is provided inside the mixing drum body, and the top end of the stirring rod is rotatably installed through the material drum, and the top end of the stirring rod is connected to the fourth motor, and the rod body of the stirring rod located inside the mixing drum body is installed with a stirring frame; the third motor and the fourth motor are electrically connected to the controller respectively; the rotation directions of the mixing drum body and the stirring rod are opposite.

7. The mass concrete temperature control device according to claim 2, characterized in that: A water inlet pipe and a water outlet pipe are provided on the body of the cooling water washing box; the water outlet pipe is connected to the water inlet end of the water pump through a connecting water pipe, the water outlet end of the water pump is connected to a filter, the water outlet end of the filter is connected to a chiller, the water outlet end of the chiller is connected to the cooling chamber through a connecting water pipe, the water outlet end of the cooling chamber is connected to the water inlet end of the cooling pipe of the concrete temperature control and curing mechanism through a connecting water pipe, and the water outlet end of the cooling pipe of the concrete temperature control and curing mechanism is connected to the water inlet pipe of the cooling water washing box through a connecting water pipe.

8. The mass concrete temperature control device according to claim 5, characterized in that: The embedded pipe includes a cooling vertical pipe and an insulating inner frame; the outer side of the cooling vertical pipe is provided with scale marks along the pipe body, and the inner side is fixedly installed with an insulating inner frame, forming a U-shaped pipe between the two; both ends of the top of the U-shaped pipe are sealed with joints for connecting the cooling pipe; water spray pipes are evenly spaced on the cooling pipe, the water spray pipes are connected to an external water source, and an atomizing nozzle is provided at the bottom of the water spray pipe, and the atomizing nozzle is installed with a water source switch solenoid valve.

9. The mass concrete temperature control device according to claim 8, characterized in that: A slider is installed on the inner side of the thermal insulation inner frame for radial sliding, a lead screw is threadedly connected to the middle part of the slider, and a fifth motor is connected to the top end of the lead screw; a temperature sensor and a distance height sensor are installed on the slider; a mounting bracket is installed on the outer side of the cooling vertical pipe, a humidity sensor is installed on the frame of the mounting bracket facing the concrete floor, and a locking bolt is installed between the mounting bracket and the cooling vertical pipe; the temperature sensor, distance height sensor, humidity sensor and water source switch solenoid valve are electrically connected to the controller respectively.

10. A method for using the mass concrete temperature control device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Concrete material cooling and loading: According to the type of concrete material, two loading methods are selected for loading; The first feeding method is: the material is a powdery and lightweight material. The material enters the feeding drum through the feed hopper. The second motor drives the winding roller, which drives the wire rope to adjust the feeding drum to a horizontal state. The first motor drives the positioning rod, which drives the leak hole auger to transfer the material into the mixing drum. The second feeding method is: the material is solid material, and the material enters the feeding drum through the feed hopper. The second motor drives the winding roller, driving the wire rope to adjust the feeding drum to an inclined state. The feeding drum rotates along the restriction frame under gravity and falls into the cooling water washing box. The material in the feeding drum is cooled by the cooling water in the cooling water washing box; after the material is cooled, the first motor drives the positioning rod to drive the leak hole auger to transfer the material into the mixing drum; during mixing, the controller starts the fourth motor to drive the mixing rod to rotate, and then drives the mixing frame to stir the concrete material. At the same time, the controller starts the third motor to drive the gear to rotate, and the gear is engaged with the gear ring to drive the mixing drum body to rotate, and the rotation directions of the mixing drum body and the mixing frame are opposite; S2. Concrete cooling and mixing: After the concrete material is transferred into the mixing drum, the water pump is started to extract the water source inside the cooling water washing box and pass it through the filter to filter out impurities in the water source. After the water source is filtered, it enters the chiller for cooling. After the chiller cools the water source, it is discharged into the annular cooling chamber through the connecting water pipe to cool the drum wall of the mixing drum, so as to continuously cool the concrete during mixing; S3. Concrete curing and cooling: Select an appropriate number of embedded pipes according to the specifications of the large-volume concrete; then install the embedded pipes. During installation, apply a release agent to the outside of the cooling vertical pipes; connect the embedded pipes in series with cooling pipes through their joints; install a water spray pipe on the cooling pipe and connect it to an external water source; during concrete curing, the heat of the concrete is transferred to the cooling vertical pipes, which transfer the heat to the cooling water washing tank through the cooling water in the pipes. After cooling by the chiller, the concrete is circulated to cool down; the controller controls the water pump flow rate and opens and closes the atomizing nozzles on the water spray pipes through the sensing signals of the temperature sensor, distance height sensor and humidity sensor, thereby spraying and cooling the concrete surface.

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