A dustless preparation method of waste recycling concrete

Abstract

The application discloses a dust-free preparation method of waste recycling concrete, relates to the technical field of waste recycling concrete, and solves the problem of much dust when a transmission device transports waste, and comprises a conveying belt, a dust collection device and a turnover device, a control cabinet and a crushing box with a top inlet and a bottom outlet are arranged at the inlet of the conveying belt, the dust collection device is arranged at the inlet of the conveying belt and used for absorbing dust and reducing the dust content in the waste, and the turnover device is arranged in the dust collection device and used for turning over the waste on the conveying belt, dust is collected at the inlet of the conveying belt through the dust collection device, and the waste is turned over through the turnover device, so that the dust mixed in the waste can be cleaned out, and the dust removal efficiency of the dust collection device is improved.

Description

Technical Field

[0001] This invention relates to the field of waste gas concrete utilization technology, specifically a dust-free preparation method for waste-to-concrete recycling. Background Technology

[0002] With the booming development of the construction industry, the demand for building materials in my country has increased dramatically. Among the raw materials of concrete, aggregates account for about 75% of the total concrete volume. The main sources of aggregates are quarrying and processing them into sand and gravel, or directly dredging sand, pebbles and gravel from riverbeds. This damages the natural environment and is not conducive to the sustainable development of the construction industry. Therefore, the recycling of concrete is of paramount importance.

[0003] Existing concrete waste undergoes a feeding and crushing process during preparation. This process generates a large amount of dust, especially at the inlet of the crushing chamber. The large amount of dust entering the air can affect the health of workers. Therefore, we propose a dust-free preparation method for recycled concrete. Summary of the Invention

[0004] The purpose of this invention is to provide a dust-free preparation method for recycled concrete from waste materials, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dust-free preparation method for recycled concrete from waste materials, which solves the problem of excessive dust during waste material transportation by the transmission device. The method includes a conveyor belt, a dust collection device, and a turning device. A control console and a crushing box with a top inlet and a bottom outlet are provided at the conveyor belt inlet. The dust collection device is located at the conveyor belt inlet and is used to absorb dust, reducing the dust content in the waste material. The turning device is located inside the dust collection device and is used to turn the waste material on the conveyor belt. By incorporating a dust collection device to collect dust at the conveyor belt inlet and simultaneously turning the waste material using the turning device, the dust mixed in with the waste material can be removed, improving the dust removal efficiency of the dust collection device.

[0006] Preferably, the dust collection device includes a dust collection box, which is fixed to the control panel. One end of the dust collection box passes through the control panel and has a dust collection port. A control box is fitted on the dust collection box and is slidably connected to the dust collection box. The bottom of the control box has a dust collection port, and a dust collection component is provided inside the dust collection port. An auxiliary component is provided inside the control box for collecting dust.

[0007] Preferably, the dust collection component includes a mounting frame rotatably connected to the dust collection port. Multiple fan blades are evenly distributed within the mounting frame, with air vents between them. A ring-shaped tooth is provided at the top of the mounting frame, penetrating the dust collection port. Connecting gears are evenly distributed at the bottom of the control box, rotatably connected to the bottom of the control box. These connecting gears are distributed between the mounting frames within the control box, with the connecting gears positioned between adjacent mounting frames. The connecting gears mesh with the ring-shaped tooth, and the ring-shaped tooth of adjacent mounting frames does not contact each other. A secondary gear is located outside the ring-shaped tooth in the middle of the control box, rotatably connected to the bottom of the control box, and meshing with the ring-shaped tooth in the middle of the control box. A rotating shaft is provided on the mounting platform outside the control box, with a first gear on the shaft meshing with the secondary gear. A drive motor is located at the top of the rotating shaft, fixed to the top of the control box, for drawing dust into the dust collection box.

[0008] Preferably, the turning device includes multiple fixed rods evenly distributed at the bottom of the control box. An incomplete gear is provided on the rotating shaft, and a toothed groove is provided on the side of the dust collection box. The incomplete gear meshes with the toothed groove. A limit rod is provided on the control panel, and a fixed block is provided on the side of the control box away from the toothed groove. The limit rod passes through the fixed block and is slidably connected to the fixed block. A spring is provided on the limit rod, with one end of the spring fixed to the fixed block and the other end fixed to the control panel. This is used to turn over the waste material and clean out the dust.

[0009] Preferably, the auxiliary components include auxiliary plates, and multiple auxiliary plates are evenly distributed inside the control box. The top of the auxiliary plates is rotatably connected to the control box. The control box is equipped with baffles, which are fixed inside the control box. Multiple baffles are located on the side of the auxiliary plates away from the dust collection port, and are used to push the dust in the dust collection box into the dust collection port.

[0010] Preferably, the auxiliary plate is made of aluminum alloy, which reduces the weight of the auxiliary plate while ensuring its strength.

[0011] Preferably, a dust collection box is fixed to the outside of the dust collection port for centralized dust collection.

[0012] Preferably, a transmission box is fixed to the outside of the crushing box, and a crushing roller driven by the transmission box is rotatably installed inside the crushing box. A transmission motor is fixed to the outside of the transmission box for crushing concrete waste.

[0013] Preferably, a cover is fixed at the connection between the crushing box and the top of the conveyor belt. The cover completely seals the inlet of the crushing box and the outlet of the conveyor belt, allowing the dust collection device to absorb the dust at the inlet of the crushing box as much as possible.

[0014] Preferably, the fixing rod is a stainless steel round rod, which can improve the strength of the fixing rod itself.

[0015] A dust-free preparation method for recycled concrete from waste materials includes the following steps:

[0016] S1. Conveying and crushing: Concrete waste is sent to the conveyor belt and then to the crushing box. The waste is crushed into fine material by the crushing roller. The dust generated by the turning device turning the waste on the conveyor belt and the dust generated by the crushing roller are sucked into the dust collection box by the fan blades.

[0017] S2. Mixing: Using a mixing machine, finely crushed sand and gravel, waste materials, silica slag, fly ash, heavy calcium carbonate powder, wood ash, and cement are mixed in a certain proportion to form recycled concrete.

[0018] Compared with traditional technologies, the beneficial effects of this invention are:

[0019] This invention uses a conveyor belt to feed concrete waste into a crushing box for heavy crushing. When the waste enters the crushing box from the conveyor belt outlet, the fixed rod inside the turning device can turn and organize the waste to prevent it from clogging the conveyor belt outlet. The dust collection device can suck dust into the dust collection box through the dust collection port by the rotation of the internal fan blades, and then the auxiliary plate pushes the dust into the dust collection port and dust collection box for dust collection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a partial cross-sectional view of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the flipping device of the present invention;

[0023] Figure 4 This is a schematic diagram of the flipping device of the present invention from another perspective;

[0024] Figure 5 This is a schematic diagram of the bottom structure of the dust collection device of the present invention;

[0025] Figure 6 This is a schematic diagram of the top structure of the dust collection device of the present invention;

[0026] Figure 7 This is a partial structural diagram of the dust collection component of the present invention;

[0027] Figure 8 This is a schematic diagram of the auxiliary component structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the mounting bracket structure of the present invention.

[0029] In the diagram: 1-Conveyor belt; 2-Control console; 3-Dust collection device; 4-Tilting device; 5-Dust collection box; 6-Dust collection port; 7-Control box; 8-Dust collection port; 9-Dust collection component; 10-Auxiliary component; 11-Mounting bracket; 12-Fan blade; 13-Air outlet; 14-Ring gear; 15-Secondary gear; 16-Rotating shaft; 17-First gear; 18-Drive motor; 19-Fixing rod; 20-Incomplete gear; 21-Gear groove; 22-Limit rod; 23-Fixing block; 24-Spring; 25-Auxiliary plate; 26-Stop bar; 27-Dust collection box; 28-Crushing box; 29-Connecting gear; 30-Transmission box; 31-Crushing roller; 32-Transmission motor; 33-Cover. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example:

[0032] Please see Figures 1-8 The diagram shows a dust-free preparation device for recycled concrete, comprising a conveyor belt 1, a crushing box 28 with a top inlet and a bottom outlet, a dust collection device 3, and a turning device 4. A transmission box 30 is fixed to the outside of the crushing box 28, and a crushing roller 31 driven by the transmission box 30 is rotatably installed inside the crushing box 28. A drive motor 32 is fixed to the outside of the transmission box 30 for crushing concrete waste. A control console 2 is located at the inlet of the crushing box 28, and the dust collection device 3 is located at the inlet of the crushing box 28, adjacent to the conveyor belt 1. Between the crushing box 28 and the dust collection device 3, the turning device 4 is located inside the dust collection device 3. By providing the dust collection device 3, dust is collected at the inlet of the conveyor belt 1. At the same time, the turning device 4 turns the waste material, which can clean out the dust mixed in the waste material and improve the dust removal efficiency of the dust collection device 3. A cover 33 is fixed at the connection between the crushing box 28 and the top of the conveyor belt 1. The cover 33 completely seals the inlet of the crushing box 28 and the outlet of the conveyor belt 1 inside the cover 33, which can allow the dust collection device to absorb the dust at the inlet of the crushing box as much as possible.

[0033] The dust collection device 3 includes a dust collection box 5, which is fixed to the control panel 2. One end of the dust collection box 5 passes through the control panel 2 and has a dust collection port 6. A control box 7 is fitted on the dust collection box 5 and is slidably connected to the dust collection box 5. A dust collection port 8 is provided at the bottom of the control box 7, and a dust collection component 9 is provided inside the dust collection port 8. An auxiliary component 10 is provided inside the control box 7 for collecting dust.

[0034] Additionally, the vacuum cleaner 9 includes a mounting bracket 11, which is rotatably connected to the vacuum port 8. Multiple fan blades 12 are evenly distributed within the mounting bracket 11, and air vents 13 are provided between the fan blades 12. A ring tooth 14 extends through the vacuum port 8 from the top of the mounting bracket 11. Adjacent mounting brackets 11 are connected by meshing ring teeth 14. A secondary gear 15 is located on the outer side of one of the ring teeth 14, and is rotatably connected to the bottom of the control box 7. The secondary gear 15 meshes with the ring tooth 14. A rotating shaft 16 is located on the mounting platform outside the control box 7, and a first gear 17 is located on the rotating shaft 16. The first gear 17 meshes with the secondary gear 15. A motor 18 is located at the top of the rotating shaft 16, and the drive motor 18 is fixed to the top of the control box 7 for drawing dust into the vacuum chamber 5.

[0035] It is worth noting that a dust collection box 27 is provided on the outside of the dust collection port 6 for centralized dust collection.

[0036] The drive motor 18 drives the rotating shaft 16 to rotate, which in turn drives the secondary gear 15 to rotate through the meshing of the first gear 17 and the secondary gear 15. Then, the secondary gear 15 drives the mounting bracket 11 located in the middle of the control box 7 to rotate through the meshing of the ring gear 14 and the connecting gear 29. The mounting bracket 11 located in the middle of the control box 7 drives the adjacent ring gear 14 located in the mounting bracket 11 that meshes with the connecting gear 29, thereby driving the fan blades 12 in all mounting brackets 11 to rotate synchronously, forming a vortex in the air outlet 13, and sucking dust into the dust collection box 5 through the air outlet 13 and the dust suction port 8.

[0037] A dust-free preparation method for recycled concrete from waste materials includes the following steps:

[0038] S1. Conveying and crushing: Concrete waste is sent to the conveyor belt 1. The waste is sent to the crushing box 28 through the conveyor belt 1. The waste is crushed into fine material by the crushing roller 31. The dust generated by the turning device 4 turning the waste on the conveyor belt 1 and the dust generated by the crushing roller 31 crushing the waste are sucked into the dust collection box 27 by the fan blade 12.

[0039] S2. Mixing: Using a mixing machine, finely crushed sand and gravel, waste materials, silica slag, fly ash, heavy calcium carbonate powder, wood ash, and cement are mixed in a certain proportion to form recycled concrete.

[0040] Please see Figure 2 and Figure 3This embodiment further illustrates Example 1: The turning device 4 includes a fixed rod 19, and multiple fixed rods 19 are evenly distributed at the bottom of the control box 7. An incomplete gear 20 is provided on the rotating shaft 16. A toothed groove 21 is provided on the side of the dust collection box 5. The incomplete gear 20 is meshed with the toothed groove 21. A limiting rod 22 is provided on the control console 2. A fixed block 23 is provided on the side of the control box 7 away from the toothed groove 21. The limiting rod 22 passes through the fixed block 23 and is slidably connected to the fixed block 23. A spring 24 passes through the limiting rod 22. One end of the spring 24 is fixed to the fixed block 23, and the other end is fixed to the control console 2. It is used to turn over the waste material and clean out the dust.

[0041] It is worth noting that the fixing rod 19 is a stainless steel round rod, which can improve the strength of the fixing rod 19 itself and increase its service life.

[0042] When the drive motor 18 is running, it drives the incomplete gear 20 to rotate via the rotating shaft 16. When the toothed part of the incomplete gear 20 meshes with the tooth groove 21, it drives the control box 7, which is fixed to the drive motor 18, to move on the dust collection box 5. At this time, the spring 24 is stretched. When the toothless part of the incomplete gear 20 rotates to fit with the tooth groove 21, the elastic force of the spring 24 brings the control box 7 back to the initial position, completing one turning of the waste.

[0043] Please see Figure 5 This embodiment further illustrates Example 2: The auxiliary component 10 includes an auxiliary plate 25. Multiple auxiliary plates 25 are provided and are evenly distributed inside the control box 7. The top of the auxiliary plate 25 is rotatably connected to the control box 7. The control box 7 is provided with a baffle 26, which is fixed inside the control box 7. Multiple baffles 26 are provided and are located on the side of the auxiliary plate 25 away from the dust collection port 6, for pushing the dust in the dust collection box 5 into the dust collection port 6.

[0044] The auxiliary plate 25 is made of aluminum alloy, which reduces the weight of the auxiliary plate 25 while ensuring its strength.

[0045] As the control box 7 moves forward, the auxiliary plate 25 is perpendicular to the inside of the control box 7 due to the action of the stop lever 26, pushing the dust at the bottom forward. Through repeated reciprocating motion, the dust in the dust collection box 5 is pushed into the dust collection port 6.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust-free preparation device for recycled concrete, characterized in that, The dust-free preparation device includes: A conveyor belt (1) and a crushing box (28) with a top inlet and a bottom outlet, wherein a control console (2) is provided at the inlet of the crushing box (28); A dust collection device (3) is used to absorb dust. The dust collection device (3) is located at the inlet of the crushing box (28) and between the conveyor belt (1) and the crushing box (28). The dust collection device (3) includes a dust collection box (5). A control box (7) is fitted on the dust collection box (5). The control box (7) is slidably connected to the dust collection box (5). A dust collection port (8) is provided at the bottom of the control box (7). A dust collection component (9) is provided inside the dust collection port (8). The dust collection component (9) includes a mounting bracket (11). The mounting bracket (11) is rotatably connected to the dust suction port (8). Multiple fan blades (12) are provided inside the mounting bracket (11) and are evenly distributed within it. Air vents (13) are provided between the multiple fan blades (12). A ring tooth (14) is provided at the top of the mounting bracket (11) through the dust suction port (8). Connecting gears (29) are evenly distributed at the bottom of the control box (7). The connecting gears are rotatably connected to the bottom of the control box (7). The connecting gears (29) are connected to the mounting bracket (11). 1) The connecting gears (29) are distributed in the control box. The connecting gears (29) are located between two adjacent mounting brackets (11). The connecting gears (29) mesh with the ring gears (14). The ring gears (14) of the two adjacent mounting brackets (11) do not contact each other. A secondary gear (15) is provided on the outside of the ring gears (14) located in the middle of the control box (7). The secondary gear (15) is rotatably connected to the bottom of the control box (7). The secondary gear (15) meshes with the ring gears (14) located in the middle of the control box (7). 14) Meshing connection: A rotating shaft (16) is provided on the mounting platform outside the control box (7). A first gear (17) is provided on the rotating shaft (16). The first gear (17) meshes with the secondary gear (15). A drive motor (18) is provided at the top of the rotating shaft (16). The drive motor (18) is fixed to the top of the control box (7). All the fan blades (12) in the mounting brackets (11) rotate synchronously, forming a vortex in the air vent (13), which sucks dust into the dust collection box (5) through the air vent (13) and the dust suction port (8). The dust collection box (5) is fixed to the control console (2), and one end of the dust collection box (5) passes through the control console (2) and is provided with a dust collection port (6). The control box (7) is provided with an auxiliary component (10). The auxiliary component (10) includes an auxiliary plate (25), and there are multiple auxiliary plates (25) evenly distributed inside the control box (7). The top of the auxiliary plate (25) is rotatably connected to the control box (7). The control box (7) is provided with a stop bar (26), and the stop bar (26) is fixed inside the control box (7). There are multiple stop bars (26), which are located on the side of the auxiliary plate (25) away from the ash collection port (6). A turning device (4) is used to turn the waste on the conveyor belt (1). The turning device (4) is located inside the dust collection device (3). The turning device (4) includes a fixing rod (19). Multiple fixing rods (19) are provided and are evenly distributed at the bottom of the control box (7). An incomplete gear (20) is provided on the rotating shaft (16). A toothed groove (21) is provided on the side of the dust collection box (5). The incomplete gear (20) meshes with the toothed groove (21). A limiting rod (22) is provided on the control console (2). A fixing block (23) is provided on the side of the control box (7) away from the toothed groove (21). The limiting rod (22) passes through the fixing block (23) and is slidably connected to the fixing block (23). A spring (24) passes through the limiting rod (22). One end of the spring (24) is fixed to the fixing block (23), and the other end is fixed to the control console (2).

2. The dust-free preparation device for recycled concrete according to claim 1, characterized in that: The auxiliary plate (25) is made of aluminum alloy.

3. The dust-free preparation device for recycled concrete according to claim 1, characterized in that: A dust collection box (27) is fixed to the outside of the dust collection port (6).

4. The dust-free preparation device for recycled concrete according to claim 1, characterized in that: A transmission box (30) is fixed to the outside of the crushing box (28). A crushing roller (31) driven by the transmission box (30) is rotatably installed inside the crushing box (28). A transmission motor (32) is fixed to the outside of the transmission box (30).

5. The dust-free preparation device for recycled concrete according to claim 1, characterized in that: A cover (33) is fixed at the connection between the crushing box (28) and the top of the conveyor belt (1). The cover (33) completely seals the inlet of the crushing box (28) and the outlet of the conveyor belt (1) inside the cover (33).

6. The dust-free preparation device for recycled concrete according to claim 1, characterized in that: The fixing rod (19) is a stainless steel round rod.

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