Concrete aggregate pre-wetting device

Abstract

The utility model relates to the technical field of concrete manufacturing, in particular to a concrete aggregate pre-wetting device which comprises a box body, a plurality of material guide plates are arranged on the inner side of the box body in a staggered mode, and the material guide plates are arranged downwards in an inclined mode and fixedly connected to the inner side wall of the box body. A plurality of stirring devices are sequentially arranged in the middle of the inner side of the box body from top to bottom, the stirring devices are in one-to-one correspondence with the material guide plates, the stirring devices are arranged above the lower ends of the corresponding material guide plates, a plurality of atomizing nozzles are arranged on the inner side wall of the box body in a staggered mode and right face the material guide plates, and the atomizing nozzles are arranged on the inner side wall of the box body. A discharge hole is formed in the bottom of the box body; according to the utility model, through the staggered guide plates and the stirring device, aggregates are overturned and stirred for multiple times in the falling process, so that the problem of non-uniform pre-wetting caused by shielding of the aggregates on the upper layer and the lower layer is avoided; the atomizing nozzles are arranged in a staggered mode and right face the material guide plate, it is ensured that water mist can cover all the surfaces of the aggregate, and the wetting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of concrete manufacturing technology, and more specifically to a concrete aggregate pre-wetting device. Background Technology

[0002] In the field of construction engineering, concrete is one of the most commonly used building materials. Concrete is made by mixing cement, aggregates, water, and admixtures in a certain proportion. Among them, aggregates, as the main component of concrete, have a crucial impact on its performance.

[0003] A Chinese utility model patent with publication number CN215549531U discloses a concrete aggregate conveying and pre-wetting device, including a feeding mechanism, a conveyor belt, a conveyor frame, a drive motor, and a water spraying mechanism. The conveyor belt is rotatably connected inside the conveyor frame. The feeding mechanism is located above the rear of the conveyor frame, and the water spraying mechanism is located above the front of the conveyor frame. The drive motor is fixedly connected to the four corners of the outer side of the conveyor frame. This utility model solves the problem of concrete aggregate leakage from both sides during conveying on the conveyor belt, which not only makes machine cleaning inconvenient but also affects normal operation due to excessive leakage of concrete aggregate. By incorporating the water spraying mechanism, water inlet pipe, water delivery pipe, spray nozzles, conveyor belt, and anti-leakage strip, this invention addresses the issue of concrete aggregate leakage during conveying and pre-wetting devices.

[0004] However, when aggregates are conveyed on the conveyor belt, the water spraying mechanism only wets the upper surface of the aggregates. The lower aggregates cannot be effectively pre-wetted because they are blocked by the upper aggregates, resulting in uneven pre-wetting and low pre-wetting efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a pre-wetting device for concrete aggregates, which avoids uneven pre-wetting caused by the obstruction of upper and lower layers of aggregates, ensures that water mist can cover all surfaces of the aggregates, and improves wetting efficiency.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A concrete aggregate pre-wetting device includes a box body. Multiple guide plates are staggered along the inner side of the box body. The guide plates are inclined downwards and fixedly connected to the inner wall of the box body. Multiple mixing devices are arranged sequentially from top to bottom along the middle of the inner side of the box body. Each mixing device corresponds to one of the guide plates and is positioned above the lower end of the corresponding guide plate. Multiple atomizing nozzles are staggered along the inner wall of the box body, facing the guide plates. A discharge port is located at the bottom of the box body.

[0008] Furthermore, a feeding hopper is provided on the top of the box, and the feeding hopper is located close to the guide plate.

[0009] Furthermore, the stirring device includes a rotating shaft rotatably disposed inside the housing, a drive motor for driving the rotating shaft to rotate is installed on the outer wall of the housing, and multiple stirring blades are fixedly connected to the rotating shaft.

[0010] Furthermore, the stirring blade has a U-shaped structure, and both ends of the stirring blade are fixedly connected to the rotating shaft.

[0011] Furthermore, the rotation directions of two adjacent rotating shafts are opposite.

[0012] Furthermore, it also includes a water injection pipe and a water tank. Multiple branch water pipes are connected to the side wall of the water injection pipe, and each branch water pipe is connected to a corresponding atomizing nozzle. The water injection pipe is connected to the water tank through a water pump.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes staggered guide plates within the chamber to guide aggregates in an "S"-shaped path, layer by layer, extending the residence time of the aggregates within the chamber. Combined with stirring devices installed on the corresponding guide plates, the falling aggregates are agitated, exposing previously obscured lower layers and solving the problem of insufficient pre-wetting of lower aggregates in traditional devices. Furthermore, atomizing nozzles staggered along the inner sidewalls of the chamber, directly facing the guide plates, spray water mist from all directions, ensuring uniform wetting of the aggregate surface. The chamber structure forms a closed space, reducing moisture loss and aggregate spillage, thus improving pre-wetting efficiency and optimizing the working environment for efficient and uniform pre-wetting treatment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a partial structural diagram of the present invention;

[0017] Figure 3 This is a cross-sectional view of the present invention.

[0018] 1. Housing; 101. Discharge port; 2. Guide plate; 3. Atomizing nozzle; 4. Feed hopper; 5. Rotating shaft; 6. Drive motor; 7. Stirring blades. Detailed Implementation

[0019] like Figures 1 to 3As shown, a concrete aggregate pre-wetting device includes a box body 1. Multiple guide plates 2 are staggered on the inner side of the box body 1. The guide plates 2 are inclined downward and fixedly connected to the inner side wall of the box body 1. Multiple mixing devices are arranged from top to bottom in the middle of the inner side of the box body 1. Each mixing device corresponds to one of the guide plates 2 and is located above the lower end of the corresponding guide plate 2. Multiple atomizing nozzles 3 are staggered on the inner side wall of the box body 1. The atomizing nozzles 3 are positioned directly opposite the guide plates 2. A discharge port 101 is provided at the bottom of the box body 1.

[0020] The top of the housing 1 is provided with a feeding hopper 4, which is located near the guide plate 2.

[0021] The stirring device includes a rotating shaft 5 rotatably disposed inside the housing 1, a drive motor 6 for driving the rotating shaft 5 to rotate is installed on the outer side wall of the housing 1, and a plurality of stirring blades 7 are fixedly connected to the rotating shaft 5.

[0022] The stirring blade 7 has a U-shaped structure, and both ends of the stirring blade 7 are fixedly connected to the rotating shaft 5.

[0023] The rotation directions of the two adjacent rotating shafts 5 are opposite.

[0024] It also includes a water injection pipe and a water tank. Multiple branch water pipes are connected to the side wall of the water injection pipe. Each branch water pipe is connected to atomizing nozzle 3 in a one-to-one correspondence. The water injection pipe is connected to the water tank through a water pump.

[0025] Working principle:

[0026] Aggregates enter the housing 1 from the feed hopper 101 and slide down the inclined guide plates 2 layer by layer, forming a tortuous falling path. Above the lower end of each guide plate 2, the drive motor 6 drives the rotating shaft 5 to rotate, which in turn drives the mixing blades 7 to tumble the aggregates, turning the upper layer of aggregates to the lower layer and vice versa, breaking up any obstructions. At the same time, atomizing nozzles 3, which are staggered on the inner wall of the housing 1, spray water mist onto the guide plates 2 to moisten the aggregates. Through the guidance of multiple guide plates 2, the tumbling of the mixing device, and the continuous spraying of the atomizing nozzles 3, the aggregates undergo pre-wetting treatment multiple times during their descent. Finally, the pre-wetted aggregates are discharged from the discharge port at the bottom of the housing, achieving a continuous and uniform pre-wetting process.

[0027] This invention guides the aggregate to fall in layers using a guide plate 2, combined with a mixing device for forced agitation, completely solving the problem of uneven pre-wetting caused by aggregate obstruction in traditional pre-wetting devices. The staggered arrangement of atomizing nozzles 3 ensures that water mist fully covers the aggregate surface, improving wetting efficiency. The enclosed housing 1 reduces moisture loss and aggregate spillage, optimizing the working environment. Furthermore, the coordinated operation of all components forms a continuous "feeding-agitation-wetting" process, significantly improving pre-wetting efficiency and providing a highly efficient and uniform solution for concrete aggregate pre-wetting.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A concrete aggregate pre-wetting device, characterized in that: The box includes a housing (1), on which multiple guide plates (2) are staggered. The guide plates (2) are inclined downward and fixedly connected to the inner wall of the housing (1). Multiple stirring devices are arranged from top to bottom in the middle of the inner side of the housing (1). The stirring devices correspond one-to-one with the guide plates (2). The stirring devices are located above the lower end of the corresponding guide plates (2). Multiple atomizing nozzles (3) are staggered on the inner wall of the housing (1). The atomizing nozzles (3) are positioned directly opposite the guide plates (2). The bottom of the housing (1) is provided with a discharge port (101).

2. The concrete aggregate pre-wetting device as described in claim 1, characterized in that: The top of the box (1) is provided with a feeding hopper (4), which is located near the guide plate (2).

3. The concrete aggregate pre-wetting device as described in claim 1, characterized in that: The stirring device includes a rotating shaft (5) rotatably disposed inside the housing (1), a drive motor (6) for driving the rotating shaft (5) to rotate is installed on the outer side wall of the housing (1), and a plurality of stirring blades (7) are fixedly connected to the rotating shaft (5).

4. The concrete aggregate pre-wetting device as described in claim 3, characterized in that: The stirring blade (7) has a U-shaped structure, and both ends of the stirring blade (7) are fixedly connected to the rotating shaft (5).

5. The concrete aggregate pre-wetting device as described in claim 3, characterized in that: The rotation directions of the two adjacent rotating shafts (5) are opposite.

6. The concrete aggregate pre-wetting device as described in claim 1, characterized in that: It also includes a water injection pipe and a water tank. Multiple branch water pipes are connected to the side wall of the water injection pipe. The branch water pipes are connected to the atomizing nozzle (3) one by one. The water injection pipe is connected to the water tank through a water pump.

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