A lightweight aggregate pre-wetting device for concrete production

Abstract

This utility model relates to the field of lightweight aggregate pre-wetting technology, and in particular to a lightweight aggregate pre-wetting device for concrete production. It includes a water recovery tank, a connecting plate, and brush components. Four support rods are fixedly connected inside the water recovery tank. A pre-wetting platform is fixedly connected to the top of each support rod. An L-shaped mounting plate and a vertical plate are fixedly connected to the top of the water recovery tank. A first lead screw is rotatably connected to the left side of the L-shaped mounting plate. A driving block is threadedly connected to the outer side of the first lead screw, and a connecting rod is fixedly connected to the rear side of the driving block. This utility model uses a first motor to drive the first lead screw to rotate, causing the driving block to move back and forth. The driving block slides along a first sliding rod and, through the connecting rod, causes the connecting plate to move back and forth above the pre-wetting platform. The connecting plate uses the brush components at its bottom to evenly spread the lightweight aggregate on the pre-wetting platform, ensuring full contact between the lightweight aggregate and water, thus achieving the function of evenly spreading the lightweight aggregate.

Description

Technical Field

[0001] This utility model relates to the field of lightweight aggregate pre-wetting technology, and in particular to a lightweight aggregate pre-wetting device for concrete production. Background Technology

[0002] Lightweight aggregate concrete refers to concrete using lightweight aggregates. Lightweight aggregate concrete is characterized by its light weight, high strength, heat insulation, and fire resistance. It also has good deformation performance, a low modulus of elasticity, and generally greater shrinkage and creep. However, due to its low water-cement ratio, lightweight aggregate concrete often exhibits severe autogenous shrinkage during cement hydration. The lightweight aggregate competes with the limited water available for cement hydration, resulting in incomplete hydration of cement particles and quality problems such as cracking. Therefore, it is necessary to pre-wet the lightweight aggregates to saturate them and prevent them from absorbing water from the concrete.

[0003] Common lightweight aggregate pre-wetting devices used in concrete production can only perform the function of pre-wetting, but lack the function of evenly spreading the lightweight aggregate. This often leads to problems during the pre-wetting process. Typically, the lightweight aggregate is poured into a bucket and water is sprayed while stirring. However, due to limitations in the mixing design, it is often difficult to ensure that all lightweight aggregate is fully mixed. This results in some lightweight aggregate not being able to effectively contact the water. At the same time, this method of relying on mechanical stirring to achieve water-aggregate mixing not only prolongs the pre-wetting operation time cycle, but also reduces the uniformity of water distribution, ultimately affecting the efficiency and effectiveness of pre-wetting.

[0004] Therefore, in response to the aforementioned problems of lacking lightweight aggregate spreading function and being limited by the mixing design, making it difficult to ensure that all aggregates are fully mixed, which not only prolongs the pre-wetting operation time but also reduces the uniformity of moisture distribution and affects the pre-wetting efficiency and effect, a lightweight aggregate pre-wetting device for concrete production can be designed. Utility Model Content

[0005] To overcome the lack of lightweight aggregate spreading function, the limited mixing design makes it difficult to ensure that all aggregates are fully mixed, which not only prolongs the pre-wetting operation time but also reduces the uniformity of moisture distribution, affecting the pre-wetting efficiency and effect.

[0006] The technical solution of this utility model is as follows: a lightweight aggregate pre-wetting device for concrete production, comprising a water resource recovery tank, a connecting plate, and a brush component. Four support rods are fixedly connected inside the water resource recovery tank. A pre-wetting platform is fixedly connected to the top of each support rod. An L-shaped mounting plate is fixedly connected to the top of the water resource recovery tank. A vertical plate is fixedly connected to the top of the water resource recovery tank. A first lead screw is rotatably connected to the left side of the L-shaped mounting plate. A driving block is threadedly connected to the outer side of the first lead screw. A connecting rod is fixedly connected to the rear side of the driving block. A connecting plate is fixedly connected to the rear end of the connecting rod. A brush component is fixedly connected to the bottom of the connecting plate. A first sliding rod is fixedly connected between the L-shaped mounting plate and the vertical plate. The driving block is slidably connected to the first sliding rod. A water spraying mechanism is provided on the water resource recovery tank for spraying water onto the lightweight aggregate. A leakage prevention mechanism is provided on the water resource recovery tank for limiting the position of the lightweight aggregate.

[0007] Preferably, the first motor drives the first lead screw to rotate, which in turn drives the drive block to move back and forth. During this process, the drive block slides along the first slide bar, and at the same time, the connecting rod drives the connecting plate to move back and forth above the pre-wetting platform. The connecting plate uses the brush at its bottom to sweep the lightweight aggregate on the pre-wetting platform evenly, so that the lightweight aggregate can be spread evenly on the pre-wetting platform, thereby enabling the lightweight aggregate to fully contact the water and achieving the function of spreading the lightweight aggregate evenly.

[0008] Preferably, the water spraying mechanism includes a water supply component and a water distribution component. The water supply component is used to transport water, and the water distribution component is used to divide a single water source into multiple water sources.

[0009] Preferably, the water supply assembly includes a special-shaped water delivery pipe and a water receiving pipe; the special-shaped water delivery pipe is fixedly connected to the top of the water resource recycling tank, and the water receiving pipe is fixedly connected to the outside of the special-shaped water delivery pipe.

[0010] Preferably, the water distribution assembly includes a hollow water distribution plate and nozzles; the end of the irregularly shaped water delivery pipe away from the water resource recycling tank is fixedly connected to the hollow water distribution plate, and multiple nozzles are fixedly connected to the bottom of the hollow water distribution plate.

[0011] Preferably, the anti-leakage mechanism includes a drive component and a limiting component. The drive component is used to control the lifting and lowering movement of the baffle plate, and the limiting component is used to limit the movement range of the baffle plate.

[0012] Preferably, the drive assembly includes a shaped baffle, a second motor, and a second lead screw; the shaped baffle is provided inside the pre-wetting platform, the second motor is fixedly connected to the top of the L-shaped mounting plate, the second lead screw is fixedly connected to the output end of the second motor, the bottom end of the second lead screw is rotatably connected to the top of the water resource recycling tank, the shaped baffle is threadedly connected to the second lead screw, and the second motor is used to control the rotational movement of the second lead screw.

[0013] Preferably, the limiting component includes a second slide rod and a limiting plate; the top of the water resource recycling box is fixedly connected to the second slide rod, the top of the second slide rod is fixedly connected to the limiting plate, and the irregular baffle is slidably connected to the second slide rod.

[0014] Preferably, a first motor is fixedly connected to the left side of the vertical plate, and the output end of the first motor is fixedly connected to the left end of the first lead screw. The first motor is used to control the rotation of the first lead screw.

[0015] The beneficial effects of this utility model are: The advantages of this structure lie in its efficient automation of the lightweight aggregate spreading process, which significantly improves the uniformity and consistency of the spreading. The regular reciprocating motion of the brushes can fully cover the surface of the pre-wetting platform, effectively preventing the accumulation of lightweight aggregate or local gaps, and ensuring that all particles are fully in contact with water to improve the pre-wetting effect. Its mechanical transmission design is stable and reliable, ensuring the precise control of the movement trajectory, reducing the tediousness and error of manual operation, thereby improving overall production efficiency and product quality. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 2 The diagram shown is an exploded view of the lightweight aggregate placement component of this utility model. Figure 3 The image shown is a bottom view of the water spray mechanism of this utility model; Figure 4 The diagram shown is a schematic of the leak-proof material prevention mechanism of this utility model; Figure 5 The diagram shown is a schematic representation of the structure of the drive component of this utility model. Figure 6 The diagram shown is a schematic representation of the material brushing assembly of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Water resource recycling bin; 11. Support rod; 12. Pre-wetting platform; 13. L-shaped mounting plate; 14. Vertical plate; 15. First motor; 16. First lead screw; 17. Drive block; 18. Connecting rod; 19. Connecting plate; 20. Brush component; 21. First sliding rod; 311. Special-shaped water delivery pipe; 312. Water receiving pipe; 321. Hollow water distribution plate; 322. Nozzle; 411. Special-shaped baffle; 412. Second motor; 413. Second lead screw; 421. Second sliding rod; 422. Limiting plate. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] In the process of continuous innovation in building materials, lightweight aggregate concrete has gradually emerged with its unique performance advantages and has become a new type of material that has attracted much attention in the modern construction field. As the name suggests, lightweight aggregate concrete refers to concrete made of lightweight aggregates with an apparent density of no more than 1950 kg / m³. This characteristic makes it show advantages that traditional concrete cannot match in many engineering applications. In terms of performance characteristics, lightweight aggregate concrete is particularly outstanding in its lightweight properties. Compared with ordinary concrete, lightweight aggregate concrete has a significantly reduced density, which not only reduces the weight of the building itself, but also effectively reduces the load on the foundation engineering and reduces the cost of foundation treatment. In high-rise buildings, long-span bridges and other projects, the use of lightweight aggregate concrete can significantly reduce the structural self-weight and improve the stability and safety of the building structure. For example, in the construction of some super high-rise skyscrapers, the use of lightweight aggregate concrete can effectively reduce the pressure of the building on the foundation and avoid problems such as foundation settlement caused by excessive weight. High strength is also a major highlight of lightweight aggregate concrete. Through reasonable mix design and optimized production process, lightweight aggregate concrete can achieve a high strength level. In some engineering parts with strict strength requirements, such as the load-bearing structure of buildings and the beams of bridges, lightweight aggregate concrete can fully meet the engineering requirements due to its high strength characteristics. Combined with its lightweight characteristics, lightweight aggregate concrete achieves a perfect unity of lightweight and high strength, breaking the limitation of insufficient strength of lightweight materials in the traditional concept. Thermal insulation performance is a key factor in the outstanding performance of lightweight aggregate concrete in the field of building energy conservation. Due to the porous structure of lightweight aggregate, these pores are filled with air. Since air is a poor conductor of heat, lightweight aggregate concrete has excellent thermal insulation properties. Using lightweight aggregate concrete in the walls, roofs and other parts of buildings can effectively reduce heat transfer and lower building energy consumption. In cold regions, it can prevent indoor heat loss and keep the interior warm; in hot regions, it can block outdoor heat from entering and create a comfortable indoor environment, which is in line with the development trend of modern building energy conservation. Fire resistance is also a significant advantage of lightweight aggregate concrete. In the event of a fire, ordinary concrete experiences rapid evaporation of internal moisture under high temperatures, generating steam pressure that can easily lead to concrete cracking and reduce the structure's load-bearing capacity. Lightweight aggregate concrete, due to its porous structure and low thermal conductivity, can, to some extent, slow down heat transfer, reduce internal steam pressure, and increase the building's fire resistance time during a fire. This provides more valuable time for evacuation and firefighting, enhancing the building's fire safety performance. Lightweight aggregate concrete has good deformation performance and a low modulus of elasticity, which allows it to undergo large deformations under load without easily breaking. In some projects with special requirements for deformation, such as seismic structures, the low modulus of elasticity of lightweight aggregate concrete enables it to better absorb seismic energy and reduce the degree of damage to buildings caused by earthquakes. However, everything has two sides. While lightweight aggregate concrete exhibits many excellent properties, it also has some problems that cannot be ignored. During the cement hydration process, lightweight aggregate concrete often exhibits severe autogenous shrinkage. The root cause of this problem lies in the low water-cement ratio of lightweight aggregate concrete. The water-cement ratio is one of the key factors affecting concrete performance. Although a lower water-cement ratio helps improve the strength and durability of concrete, it also results in relatively less usable water during cement hydration. Furthermore, lightweight aggregates themselves have strong water absorption properties, which will compete with the limited water available during cement hydration. Cement hydration is a complex chemical reaction process. Cement particles need to come into full contact with water and react to form hydration products with strength and binding capacity. When lightweight aggregate absorbs a large amount of water, the water supply around the cement particles is insufficient, resulting in incomplete hydration of the cement. Unhydrated cement particles cannot form enough binding material, the internal structure of the concrete becomes loose, and the strength growth is inhibited. More seriously, due to uneven water distribution, large shrinkage stress will be generated inside the concrete. When this shrinkage stress exceeds the tensile strength of the concrete, cracking will occur. Concrete cracking not only affects the appearance of buildings but also reduces their durability and performance. Cracks provide channels for external moisture, gas, and harmful substances, accelerating the deterioration process of concrete carbonation and steel corrosion, thus shortening the lifespan of buildings. In some projects with high requirements for waterproofing and seepage prevention, such as underground projects and hydraulic structures, concrete cracking may lead to leakage problems, seriously affecting the normal use and safe operation of the project. To address quality issues such as autogenous shrinkage and cracking in lightweight aggregate concrete, pre-wetting treatment of lightweight aggregate has become an effective method. The core principle of pre-wetting treatment is to bring the lightweight aggregate to a saturated state, so that it no longer absorbs water from the concrete during concrete mixing and cement hydration, thereby ensuring that the cement can hydrate normally and maintaining the internal moisture balance of the concrete. In practice, there are various methods for pre-wetting treatment. One common method is the soaking method, which involves immersing the lightweight aggregate in water for a certain period of time. By controlling the soaking time and water temperature, the lightweight aggregate can fully absorb water and reach a saturated, surface-dry state. During the soaking process, it is necessary to closely monitor the water absorption of the lightweight aggregate to avoid over-soaking, which would lead to excessive moisture content and affect the workability of the concrete. Another method is the spraying method, which uses spraying equipment to evenly spray water onto the surface of the lightweight aggregate, allowing it to gradually absorb water until it reaches saturation. The advantage of the spraying method is that it can precisely control the moisture content of the lightweight aggregate and avoid uneven moisture content.

[0020] In addition to soaking and spraying methods, a pre-wetting chamber method can also be used. A pre-wetting chamber is a specially designed container for storing and pre-wetting lightweight aggregates. By introducing air or water mist with a certain humidity into the chamber, the lightweight aggregates gradually absorb moisture. This method is suitable for large-scale production and can achieve continuous pre-wetting treatment of lightweight aggregates, thereby improving production efficiency. When performing pre-wetting treatment, many factors need to be considered to affect the treatment effect. First is the pre-wetting time. Different types and sizes of lightweight aggregates have different water absorption rates and saturated water absorption capacities. Therefore, it is necessary to determine a reasonable pre-wetting time based on the actual situation. Generally speaking, lightweight aggregates with smaller particle sizes have a faster water absorption rate and require a shorter pre-wetting time, while lightweight aggregates with larger particle sizes require a longer pre-wetting time. Second is the pre-wetting temperature. Temperature has a significant impact on the water absorption rate of lightweight aggregates. Appropriately increasing the pre-wetting temperature can accelerate the water absorption rate of lightweight aggregates, but excessively high temperatures may have an adverse effect on the physical properties of lightweight aggregates. Therefore, it is necessary to control the temperature within a suitable range. In addition, the storage time of pre-wetting lightweight aggregates also needs to be strictly controlled. If the storage time is too long, the lightweight aggregates may dry out again due to moisture loss, thus losing the effect of pre-wetting treatment. If the storage time is too short, the internal moisture distribution of the lightweight aggregates may be uneven, which will also affect the performance of concrete. Therefore, in actual projects, the pre-wetting treatment time and storage method of lightweight aggregates are usually arranged reasonably according to the construction progress and concrete production plan to ensure that the pre-wetting lightweight aggregates can play the best role when used. Pre-wetting lightweight aggregates can effectively improve the performance of concrete during its preparation. Since lightweight aggregates no longer absorb water from the concrete, the cement hydration process can proceed smoothly, the concrete strength can be fully developed, the internal structure is more compact, and autogenous shrinkage and cracking are significantly suppressed. At the same time, pre-wetting treatment can also improve the workability of concrete, giving it better fluidity and plasticity, making construction easier and ensuring project quality. With the increasing demand for green, energy-saving, and high-performance materials in the construction industry, lightweight aggregate concrete has broad application prospects due to its unique performance advantages. Scientific and reasonable pre-wetting treatment of lightweight aggregate is a key link to solve its own defects and give full play to its performance advantages. In the future, with the continuous deepening of research and continuous technological innovation, lightweight aggregate concrete and its pre-wetting treatment technology will continue to improve and develop, providing stronger support for the sustainable development of the construction industry and demonstrating great application value and economic benefits in more engineering fields.

[0021] Please see Figures 1-6 This utility model provides an embodiment of a lightweight aggregate pre-wetting device for concrete production, comprising a water resource recovery tank 1, a connecting plate 19, and a brush component 20. Four support rods 11 are fixedly connected inside the water resource recovery tank 1. A pre-wetting platform 12 is fixedly connected to the top of each support rod 11. An L-shaped mounting plate 13 is fixedly connected to the top of the water resource recovery tank 1. A vertical plate 14 is fixedly connected to the top of the water resource recovery tank 1. A first lead screw 16 is rotatably connected to the left side of the L-shaped mounting plate 13. A driving block 17 is threadedly connected to the outer side of the first lead screw 16. A connecting rod 18 is fixedly connected to the rear side of the driving block 17. A connecting plate 19 is fixedly connected to the rear end of the connecting rod 18. The brush component 20 is fixedly connected to the bottom of the connecting plate 19. A first sliding rod 2 is fixedly connected between the L-shaped mounting plate 13 and the vertical plate 14. 1. The drive block 17 is slidably connected to the first slide rod 21. The water resource recycling tank 1 is equipped with a water spraying mechanism for spraying water onto the lightweight aggregate. The water resource recycling tank 1 is also equipped with a leak-proof mechanism for limiting the position of the lightweight aggregate. The first motor 15 drives the first lead screw 16 to rotate, and the first lead screw 16 drives the drive block 17 to move back and forth. At the same time, the drive block 17 slides along the first slide rod 21, and the drive block 17 drives the connecting plate 19 to move back and forth above the pre-wetting platform 12 via the connecting rod 18. The connecting plate 19 sweeps the lightweight aggregate on the pre-wetting platform 12 evenly through the brush 20 at the bottom, so that the lightweight aggregate can be spread evenly on the pre-wetting platform 12, allowing the lightweight aggregate to fully contact the water and achieving the function of spreading the lightweight aggregate evenly.

[0022] Please see Figures 2-6In this embodiment, the water spraying mechanism includes a water supply component and a water distribution component. The water supply component is used to transport water, and the water distribution component is used to divide a single water source into multiple water sources. The water supply component and the water distribution component are combined to form a complete water spraying mechanism. The two cooperate with each other to spray water onto the lightweight aggregate. The water supply component includes a special-shaped water delivery pipe 311 and a water receiving pipe 312. The special-shaped water delivery pipe 311 is fixedly connected to the top of the water resource recycling tank 1, and the water receiving pipe 312 is fixedly connected to the outside of the special-shaped water delivery pipe 311. Water is transported through the water receiving pipe 312 by external water conveying equipment. The water is delivered into the special-shaped water supply pipe 311, and then the water in the special-shaped water supply pipe 311 is delivered to the interior of the hollow water distribution plate 321. The water distribution component includes the hollow water distribution plate 321 and the nozzles 322. The end of the special-shaped water supply pipe 311 away from the water resource recycling tank 1 is fixedly connected to the hollow water distribution plate 321. Multiple nozzles 322 are fixedly connected to the bottom of the hollow water distribution plate 321. After the water in the special-shaped water supply pipe 311 enters the hollow water distribution plate 321, it is sprayed downward through the multiple nozzles 322 to pre-wet the lightweight aggregate laid flat in the pre-wetting platform 12.

[0023] Please see Figures 1-6In this embodiment, the anti-leakage mechanism includes a driving component and a limiting component. The driving component controls the lifting and lowering movement of the baffle plate, and the limiting component limits the movement range of the baffle plate. The driving component and the limiting component together form a complete anti-leakage mechanism, which cooperate to limit the position of the lightweight aggregate. The driving component includes a shaped baffle plate 411, a second motor 412, and a second lead screw 413. The pre-wetting platform 12 is provided with a shaped baffle plate 411 inside, and the top of the L-shaped mounting plate 13 is fixedly connected. A second motor 412 is provided, and a second lead screw 413 is fixedly connected to the output end of the second motor 412. The bottom end of the second lead screw 413 is rotatably connected to the top of the water resource recycling tank 1. A special-shaped baffle 411 is threadedly connected to the second lead screw 413. The second motor 412 is used to control the rotational movement of the second lead screw 413. The special-shaped baffle 411 blocks the right side of the pre-wetting platform 12, so that when the brush 20 is sweeping, the light aggregate will not be swept out from the inside of the pre-wetting platform 12. When discharge is required, the second motor 412 is used to control the rotational movement of the second lead screw 413. The second motor 412 drives the second lead screw 413 to rotate, and the second lead screw 413 drives the irregular baffle 411 to move upward until the irregular baffle 411 is completely removed from the interior of the pre-wetting platform 12. The limiting assembly includes a second slide rod 421 and a limiting plate 422. The top of the water resource recycling box 1 is fixedly connected to the second slide rod 421, and the top end of the second slide rod 421 is fixedly connected to the limiting plate 422. The irregular baffle 411 is slidably connected to the second slide rod 421. During the upward movement of the irregular baffle 411, it will... Slide upward along the second slide bar 421. The shaped baffle 411 is blocked by the limiting plate 422 at the top of the second slide bar 421, thereby preventing the shaped baffle 411 from detaching from the second slide bar 421. The left side of the vertical plate 14 is fixedly connected to the first motor 15. The output end of the first motor 15 is fixedly connected to the left end of the first lead screw 16. The first motor 15 is used to control the rotation of the first lead screw 16. The first motor 15 drives the first lead screw 16 to rotate, thereby driving the drive block 17 to move back and forth.

[0024] During operation, the water supply pipe of the external water supply equipment is first connected to the water receiving pipe 312. Then, the lightweight aggregate is placed into the pre-wetting platform 12. Next, the first motor 15 drives the first lead screw 16 to rotate, causing the drive block 17 to move back and forth. During this process, the drive block 17 slides along the first slide rod 21, and at the same time, the connecting rod 18 drives the connecting plate 19 to move back and forth above the pre-wetting platform 12. The connecting plate 19 uses the brush 20 at its bottom to sweep the lightweight aggregate on the pre-wetting platform 12 evenly, so that the lightweight aggregate is spread evenly on the pre-wetting platform 12. Then, the water is transported through the water receiving pipe 312 to the special-shaped water supply pipe 311 by the external water supply equipment. Then, the water in the special-shaped water supply pipe 311 flows into the interior of the hollow water distribution plate 321. After the water in pipe 311 enters the hollow water distribution plate 321, it will be sprayed downward through multiple nozzles 322 to pre-wet the lightweight aggregate laid flat in the pre-wetting platform 12. After the lightweight aggregate is pre-wetted, the second motor 412 drives the second lead screw 413 to rotate, causing the second lead screw 413 to move the irregular baffle 411 upward until the irregular baffle 411 is completely removed from the interior of the pre-wetting platform 12. During the upward movement, the irregular baffle 411 slides upward along the second slide rod 421 and is blocked by the limiting plate 422 at the top of the second slide rod 421, thereby preventing the irregular baffle 411 from detaching from the second slide rod 421. Finally, the pusher plate needs to be inserted into the pre-wetting platform 12, and the lightweight aggregate in the pre-wetting platform 12 can be pushed out from its interior by the pusher plate.

[0025] Through the above steps, the first motor 15 drives the first lead screw 16 to rotate, which in turn drives the drive block 17 to move back and forth. The drive block 17 slides along the first slide rod 21 and drives the connecting plate 19 to move back and forth above the pre-wetting platform 12 via the connecting rod 18. The connecting plate 19 uses the brush 20 at its bottom to sweep and spread the lightweight aggregate on the pre-wetting platform 12 evenly, so that the lightweight aggregate is fully in contact with water, thus achieving the function of spreading the lightweight aggregate evenly. This solves the problem that common lightweight aggregate pre-wetting devices in concrete production can only play the role of pre-wetting, but lack the function of spreading the lightweight aggregate evenly. Due to the limitations of the mixing design, it is difficult to ensure that all aggregates are fully mixed, which not only prolongs the pre-wetting operation time, but also reduces the uniformity of moisture distribution, resulting in a decrease in pre-wetting efficiency and effect.

Claims

1. A lightweight aggregate pre-wetting device for concrete production, comprising a water resource recovery tank (1); characterized in that: It also includes a connecting plate (19) and a brush part (20). The water resource recycling tank (1) is internally fixedly connected to four support rods (11). The top of the support rods (11) is fixedly connected to a pre-wetting platform (12). The top of the water resource recycling tank (1) is fixedly connected to an L-shaped mounting plate (13). The top of the water resource recycling tank (1) is fixedly connected to a vertical plate (14). The left side of the L-shaped mounting plate (13) is rotatably connected to a first lead screw (16). The outer side of the first lead screw (16) is threadedly connected to a drive block (17). The rear side of the drive block (17) is fixedly connected to a drive block (17). A connecting rod (18) is fixedly connected to the rear end of the connecting rod (18), a connecting plate (19) is fixedly connected to the bottom of the connecting plate (19), a brush (20) is fixedly connected to the bottom of the connecting plate (19), a first sliding rod (21) is fixedly connected between the L-shaped mounting plate (13) and the vertical plate (14), a driving block (17) is slidably connected to the first sliding rod (21), a water resource recycling box (1) is provided with a water spraying mechanism, the water spraying mechanism is used to spray water onto the lightweight aggregate, and a leak-proof mechanism is provided on the water resource recycling box (1), the leak-proof mechanism is used to limit the position of the lightweight aggregate.

2. The lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: The water spraying mechanism includes a water supply component and a water distribution component. The water supply component is used to transport water, and the water distribution component is used to divide a single water source into multiple water sources.

3. The lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: The water supply assembly includes a special-shaped water supply pipe (311) and a water receiving pipe (312); the special-shaped water supply pipe (311) is fixedly connected to the top of the water resource recycling box (1), and the water receiving pipe (312) is fixedly connected to the outside of the special-shaped water supply pipe (311).

4. The lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: The water distribution assembly includes a hollow water distribution plate (321) and a nozzle (322); the hollow water distribution plate (321) is fixedly connected to one end of the irregular water delivery pipe (311) away from the water resource recycling tank (1), and multiple nozzles (322) are fixedly connected to the bottom of the hollow water distribution plate (321).

5. A lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: The anti-leakage mechanism includes a drive component and a limit component. The drive component is used to control the lifting and lowering movement of the baffle plate, and the limit component is used to limit the movement range of the baffle plate.

6. A lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: The drive assembly includes a shaped baffle (411), a second motor (412), and a second lead screw (413); the pre-wetting platform (12) is provided with a shaped baffle (411), the top of the L-shaped mounting plate (13) is fixedly connected to the second motor (412), the output end of the second motor (412) is fixedly connected to the second lead screw (413), the bottom end of the second lead screw (413) is rotatably connected to the top of the water resource recycling box (1), the shaped baffle (411) is threadedly connected to the second lead screw (413), and the second motor (412) is used to control the rotational movement of the second lead screw (413).

7. A lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: The limiting assembly includes a second slide rod (421) and a limiting plate (422); the top of the water resource recycling box (1) is fixedly connected to the second slide rod (421), the top end of the second slide rod (421) is fixedly connected to the limiting plate (422), and the irregular baffle (411) is slidably connected to the second slide rod (421).

8. A lightweight aggregate pre-wetting device for concrete production according to claim 1, characterized in that: A first motor (15) is fixedly connected to the left side of the vertical plate (14). The output end of the first motor (15) is fixedly connected to the left end of the first lead screw (16). The first motor (15) is used to control the rotation of the first lead screw (16).

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