Recycled aggregate pretreatment device for autoclaved aerated building blocks

Abstract

The utility model provides a recycled aggregate pretreatment device for autoclaved aerated building blocks, which relates to the technical field of recycled aggregate pretreatment and comprises a support frame, a first conveyor belt, a second conveyor belt, a magnet, a guide box, a scraper plate, a fixed plate, a fixed rod, a reciprocating lead screw and a motor. The reciprocating lead screw is in threaded connection with a sliding block, the sliding block is provided with a material collecting hopper, the upper end and the lower end of the material collecting hopper are open, the material collecting hopper is connected with the fixing rod in a sliding mode, and a bendable and telescopic connecting pipe is arranged at the position of an opening in the upper end of the material collecting hopper. According to the recycled aggregate tiling device, the recycled aggregate can be relatively uniformly tiled on the first conveying belt, and the recycled aggregate tiled on the first conveying belt has relatively thin thickness, so that metal pieces mixed in the recycled aggregate can be effectively adsorbed and transferred out, the quality of the recycled aggregate is improved, and subsequent use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of recycled aggregate pretreatment, in particular to a recycled aggregate pretreatment device for autoclaved aerated building blocks. Background Art

[0002] When making autoclaved aerated blocks, a portion of recycled aggregate is added to the raw materials to improve resource utilization and reduce production costs. Recycled aggregate includes recycled coarse aggregate and recycled fine aggregate. Both are processed from concrete, mortar, stone or bricks and tiles in construction waste. The difference lies in the size of the particle size. Particles with a particle size greater than 4.75mm are recycled coarse aggregates, and particles with a particle size not greater than 4.75mm are recycled fine aggregates.

[0003] Recycled aggregates often contain small construction metal parts such as bent screws. During the process of processing building materials into recycled aggregates, these small parts are directly removed by magnetic attraction. However, due to the large processing output and fast operating speed, and when the metal parts are deeply buried in the recycled aggregates, the removal of the metal parts is not thorough enough, affecting their subsequent use. Utility Model Content

[0004] The purpose of the utility model is to provide a recycled aggregate pretreatment device for autoclaved aerated building blocks, aiming to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: the recycled aggregate pretreatment device for autoclaved aerated blocks includes a support frame, a first conveyor belt is provided on the support frame, a second conveyor belt is provided on the first conveyor belt, the first conveyor belt and the second conveyor belt partially overlap, a magnet is fixedly provided inside the second conveyor belt, a material guide box is provided at one end of the second conveyor belt, and a scraper is provided at the other end of the second conveyor belt, fixed plates are respectively provided on both sides of the upper surface of the first conveyor belt, two fixed rods are provided between the two fixed plates, a reciprocating screw is provided between the two fixed plates, a motor for driving the reciprocating screw to rotate is provided on one side of the fixed plate, a slider is threadedly connected to the reciprocating screw, a collecting hopper is provided on the slider, the upper and lower ends of the collecting hopper are both opened, the collecting hopper is slidably connected to the fixed rod, and a bendable and retractable connecting pipe is provided at the upper end opening of the collecting hopper.

[0006] Preferably, a vibration motor is provided on the outer surface of the collecting hopper.

[0007] Preferably, a shock-absorbing layer is provided between the collecting hopper and the sliding block.

[0008] Preferably, a material distribution protrusion is provided inside the collecting hopper.

[0009] Preferably, the material guiding direction of the material guiding box is different from the material feeding direction of the first conveyor belt.

[0010] The beneficial effects of the utility model are:

[0011] When the device is in use, the reciprocating collecting hopper and the scraper plate can make the recycled aggregate relatively evenly spread on the first conveyor belt, and the recycled aggregate spread on the first conveyor belt has a relatively thin thickness, so as to effectively absorb and transfer out the metal parts mixed in the recycled aggregate, thereby improving the quality of the recycled aggregate and facilitating subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0013] Figure 2 It is a structural schematic diagram of a connecting pipe in a specific embodiment of the present utility model.

[0014] Figure 3 It is a structural schematic diagram of the second conveyor belt in a specific embodiment of the present utility model.

[0015] Figure 4 It is a schematic diagram of the internal structure of a material receiving box in a specific embodiment of the present utility model.

[0016] In the figure: 1. Main conveyor belt; 2. Cavity; 3. Support frame; 4. First conveyor belt; 5. Second conveyor belt; 6. Magnet; 7. Material guide box; 8. Fixed plate; 9. Fixed rod; 10. Reciprocating screw; 11. Motor; 12. Slider; 13. Collecting hopper; 14. Connecting pipe; 15. Vibration motor; 16. Shock-absorbing layer; 17. Material separation protrusion; 18. Scraper plate. DETAILED DESCRIPTION

[0017] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1-4As shown, a recycled aggregate pretreatment device for autoclaved aerated blocks includes a support frame 3, a first conveyor belt 4 is provided on the support frame 3, a second conveyor belt 5 is provided on the first conveyor belt 4, the first conveyor belt 4 and the second conveyor belt 5 partially overlap, a magnet 6 is fixedly provided inside the second conveyor belt 5, a material guide box 7 is provided at one end of the second conveyor belt 5, and a scraper plate 18 is provided at the other end of the second conveyor belt 5, fixed plates 8 are provided on both sides of the upper surface of the first conveyor belt 4, two fixed rods 9 are provided between the two fixed plates 8, a reciprocating screw 10 is provided between the two fixed plates 8, a motor 11 for driving the reciprocating screw 10 to rotate is provided on one side of the fixed plate 8, a slider 12 is threadedly connected to the reciprocating screw 10, a collecting hopper 13 is provided on the slider 12, the upper and lower ends of the collecting hopper 13 are both opened, the collecting hopper 13 is slidably connected to the fixed rod 9, and a bendable and retractable connecting pipe 14 is provided at the upper end opening of the collecting hopper 13.

[0019] The crushing device crushes the usable objects in the construction waste into granular recycled aggregates, and the recycled aggregates fall onto the main conveyor belt 1, transferring the continuously generated recycled aggregates out. The main conveyor belt 1 is arranged inside the cavity 2, which is used to support the main conveyor belt 1 and place the recycled aggregates on the main conveyor belt 1 in a relatively closed transportation environment to reduce dust. One end of the cavity 2 is connected to the collecting hopper 13 by a connecting pipe 14. The connecting pipe 14 is used to allow the recycled aggregates on the main conveyor belt 1 to enter the collecting hopper 13 through the connecting pipe 14 and fall onto the first conveyor belt 4 through the collecting hopper 13. The width of the first conveyor belt 4 is greater than the width of the main conveyor belt 1. The collecting hopper 13 reciprocates on the first conveyor belt 4 and flattens the recycled aggregates on the first conveyor belt 4 through the scraper plate 18, so that the thickness of the recycled aggregates on the first conveyor belt 4 is much lower than the thickness of the recycled aggregates on the main conveyor belt 1, so as to ensure that the metal parts contained in the recycled aggregates on the first conveyor belt 4 are subsequently adsorbed and transferred out by the second conveyor belt 5.

[0020] When the recycled aggregate is spread onto the first conveyor belt 4 through the collecting hopper 13, the first conveyor belt 4 and the second conveyor belt 5 are always in motion. When the recycled aggregate is spread, the motor 11 is started, and the motor 11 drives the reciprocating screw 10 to rotate. The reciprocating screw 10 is connected with the slider 12 through a thread, and is guided and limited by the fixed rod 9 and the collecting hopper 13, so that the motor 11 controls the slider 12 to move back and forth along the reciprocating screw 10, and drives the collecting hopper 13 to move back and forth along the reciprocating screw 10, so that the recycled aggregate entering the collecting hopper 13 is spread on the first conveyor belt 4. When the recycled aggregate on the first conveyor belt 4 passes through the scraper plate 18, the scraper The plate 18 will spread the thicker recycled aggregate into thin layers, that is, the recycled aggregate on the first conveyor belt 4 will be scraped from the curved strip shape when it falls into a thin layer, so as to reduce the flat thickness of the recycled aggregate. When the scraped recycled aggregate enters the position of the second conveyor belt 5, the magnet 6 will adsorb the metal parts in the recycled aggregate on the first conveyor belt 4 on the outer surface of the second conveyor belt 5. When the second conveyor belt 5 moves, it will drive the metal parts to move. When the second conveyor belt 5 drives the metal parts to separate from the magnet 6, due to the lack of adsorption of the magnet 6, the metal parts fall to the position of the material guide box 7 and are discharged outward. The recycled aggregate after being magnetically attracted by the magnet 6 falls out at the end of the first conveyor belt 4.

[0021] Furthermore, a vibration motor 15 is provided on the outer surface of the hopper 13. The vibration motor 15 can promote the stable falling of the recycled aggregate in the hopper 13 onto the first conveyor belt 4, thereby avoiding the blockage of the recycled aggregate in the hopper 13 and affecting the normal falling of the recycled aggregate onto the first conveyor belt 4.

[0022] Furthermore, a shock-absorbing layer 16 is provided between the collecting hopper 13 and the slider 12 . The shock-absorbing layer 16 can reduce the impact of the vibration generated by the vibration motor 15 on the slider 12 , thereby improving the stability of the slider 12 moving on the reciprocating screw 10 .

[0023] Furthermore, a material dividing protrusion 17 is provided inside the collecting hopper 13. The material dividing protrusion 17 can prevent the recycled aggregate in the collecting hopper 13 from being retained, so that the recycled aggregate entering the collecting hopper 13 can be discharged onto the first conveyor belt 4.

[0024] Furthermore, the material guiding direction of the material guide box 7 is different from the feeding direction of the first conveyor belt 4. The metal parts sliding out of the material guide box 7 are directed toward the side of the first conveyor belt 4 to avoid the separated metal parts from being mixed with the recycled aggregate again. A collection frame can be placed at the discharge port of the material guide box 7 to facilitate the collection and transfer of the separated metal parts.

[0025] When the device is in use, the reciprocating collecting hopper 13 and the scraper plate 18 can make the recycled aggregate relatively evenly spread on the first conveyor belt 4, and make the recycled aggregate spread on the first conveyor belt 4 have a relatively thin thickness, so as to effectively absorb and transfer out the metal parts mixed in the recycled aggregate, thereby improving the quality of the recycled aggregate and facilitating subsequent use.

[0026] In the description of this utility model, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

Claims

1. A recycled aggregate pretreatment device for autoclaved aerated blocks, characterized in that: The conveyor belt is provided with a first conveyor belt, the conveyor belt is provided with a second conveyor belt, the first conveyor belt and the second conveyor belt partially overlap, a magnet is fixedly provided inside the second conveyor belt, a material guide box is provided at one end of the second conveyor belt, and a scraper is provided at the other end of the second conveyor belt. When the recycled aggregate on the first conveyor belt passes through the scraper, the scraper will spread the thicker recycled aggregate thinly, fixed plates are provided on both sides of the upper surface of the first conveyor belt, two fixed rods are provided between the two fixed plates, a reciprocating screw is provided between the two fixed plates, a motor for driving the reciprocating screw to rotate is provided on one side of the fixed plate, a slider is threadedly connected to the reciprocating screw, a collecting hopper is provided on the slider, the upper and lower ends of the collecting hopper are both opened, the collecting hopper is slidably connected to the fixed rod, and a flexible and retractable connecting pipe is provided at the upper end opening of the collecting hopper.

2. The recycled aggregate pretreatment device for autoclaved aerated blocks according to claim 1 is characterized in that: The outer surface of the collecting hopper is provided with a vibration motor.

3. The recycled aggregate pretreatment device for autoclaved aerated blocks according to claim 2, characterized in that: A shock-absorbing layer is provided between the collecting hopper and the sliding block.

4. The recycled aggregate pretreatment device for autoclaved aerated blocks according to claim 1 is characterized in that: A material distribution protrusion is provided inside the collecting hopper.

5. The recycled aggregate pretreatment device for autoclaved aerated blocks according to any one of claims 1 to 4, characterized in that: The material guiding direction of the material guiding box is different from the material feeding direction of the first conveyor belt.

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