CN-224208084-U - Building waste regeneration mechanism sand preparation facilities

Abstract

The utility model relates to the technical field of material processing, in particular to a device for preparing recycled machine-made sand from construction waste. The technical scheme includes that the screening cavity is arranged on the bottom plate through supporting legs, a crushing assembly is arranged at a top feed inlet of the screening cavity and used for crushing construction waste, the screening plate is rotatably arranged in the screening cavity and provided with an adjusting assembly, the adjusting assembly is used for adjusting an inclination angle of the screening plate, and a backflow assembly is arranged on the bottom plate and used for guiding crushed particles which are not up to standard in the screening cavity to flow back into the crushing assembly. According to the utility model, the screening structure can be adjusted through cooperation between the structures, so that the screening efficiency is improved, and meanwhile, unqualified sand grains are automatically conveyed back to the crushing roller for secondary crushing, so that closed circulation is formed.

Inventors

• CHENG HUI
• FU LEI
• FU CHUNLEI
• WANG MING
• REN WENHAI
• HUANG LIANG
• XIN JIAN
• YANG YANAN
• ZHOU QIAO
• LUO YI

Assignees

• 重庆砼磊高新混凝土有限公司

Dates

Publication Date

20260508

Application Date

20250417

Claims (8)

1. 1. The device for preparing the machine-made sand by recycling the construction waste comprises a bottom plate (1), a screening cavity (4) and a screen plate (8), and is characterized in that the screening cavity (4) is arranged on the bottom plate (1) through supporting legs (3), a crushing assembly (5) is arranged at a top feed inlet of the screening cavity (4), and the crushing assembly (5) is used for crushing the construction waste; The sieve plate (8) is rotatably arranged in the sieving cavity (4), an adjusting component (7) is arranged on the sieving cavity (4), and the adjusting component (7) is used for adjusting the inclination angle of the sieve plate (8); The novel screening device is characterized in that a backflow assembly (6) is arranged on the bottom plate (1), and the backflow assembly (6) is used for guiding and backflow of the crushed particles which do not reach standards in the screening cavity (4) into the crushing assembly (5).
2. 2. The device for preparing the recycled machine-made sand by the construction waste according to claim 1, wherein the adjusting component (7) is composed of a motor (701), an arc-shaped rack (702) and an arc-shaped sliding block (703), the arc-shaped sliding block (703) is arranged at one end of the screen plate (8) and is arranged on the inner wall of the screening cavity (4) in a sliding manner, and the arc-shaped rack (702) is arranged in the arc-shaped sliding block (703).
3. 3. The device for preparing the machine-made sand by recycling the construction waste according to claim 2, wherein the motor (701) is arranged on the outer wall of the screening cavity (4), a gear is arranged at the output end of the motor (701), and the gear at the output end of the motor (701) is meshed with the gear teeth of the arc-shaped rack (702).
4. 4. The device for preparing the recycled machine-made sand by the construction waste according to claim 2, wherein the arc-shaped rack (702), the arc-shaped sliding block (703) and the sieve plate (8) are in a coaxial state.
5. 5. The apparatus for producing machine-made sand by recycling construction waste according to claim 1, wherein the return assembly (6) comprises a vertical plate (601), a return pipe (602), a cylinder housing (603) and a winch Long Gan (604), the vertical plate (601) is provided on the bottom plate (1), and the cylinder housing (603) is provided on the vertical plate (601).
6. 6. The apparatus for producing machine-made sand by recycling construction waste according to claim 5, wherein the wring Long Gan (604) is rotatably provided in the drum shell (603), a feed inlet of the drum shell (603) is communicated with a side reflux inlet of the sieving chamber (4), and one end of the reflux pipe (602) is provided at a discharge outlet of the drum shell (603) and the other end is opposite to a feed hopper (503) of the pulverizing assembly (5).
7. 7. The device for preparing the recycled machine-made sand by the construction waste according to claim 1, wherein the crushing assembly (5) is composed of a crushing roller (501), a crushing chamber (502) and a feed hopper (503), the crushing chamber (502) is arranged at a top end feed inlet of the screening cavity (4), the crushing roller (501) is symmetrically and rotationally arranged in the crushing chamber (502), and the feed hopper (503) is arranged at a top end feed inlet of the crushing chamber (502).
8. 8. The device for preparing the recycled machine-made sand by the construction waste according to claim 1, wherein the lower surface of the base plate (1) is provided with four supporting seats (2), and the four supporting seats (2) are distributed on the base plate (1) in a rectangular array.

Description

Building waste regeneration mechanism sand preparation facilities Technical Field The utility model relates to the technical field of material processing, in particular to a device for preparing recycled machine-made sand from construction waste. Background At present, the recycling of the construction waste becomes an important direction of recycling resources, wherein the construction waste is crushed and screened to be manufactured into recycled machine-made sand, so that the recycled machine-made sand can effectively replace natural sand, and the environmental burden is reduced. The conventional sand making equipment has the following problems that the fixed inclination angle sieve plate is difficult to adapt to building wastes (such as concrete blocks, bricks, tiles, mortar and the like) with different components, the sieve holes are easily blocked or the material screening is incomplete, the quality of finished sand is influenced, and the substandard sand grains are generally required to be crushed again by manual or additional conveying equipment, so that the energy consumption and the operation complexity are increased. Therefore, we propose a device for preparing the recycled machine-made sand of the construction waste to solve the existing problems. Disclosure of utility model The utility model aims to solve the problems in the background art and provides a device for preparing recycled machine-made sand from construction waste. The technical scheme is that the building waste regeneration machine-made sand preparation device comprises a bottom plate, a screening cavity and a screen plate, wherein the screening cavity is arranged on the bottom plate through supporting legs, a crushing assembly is arranged at a top end feed inlet of the screening cavity, and the crushing assembly is used for crushing and processing building waste; The sieve plate is rotatably arranged in the sieving cavity, an adjusting component is arranged on the sieving cavity, and the adjusting component is used for adjusting the inclination angle of the sieve plate; The bottom plate is provided with a reflux assembly, and the reflux assembly is used for guiding and refluxing the crushed particles which are not up to standard in the screening cavity into the crushing assembly. Preferably, the adjusting component is composed of a motor, an arc-shaped rack and an arc-shaped sliding block, wherein the arc-shaped sliding block is arranged at one end of the sieve plate and is arranged on the inner wall of the sieving cavity in a sliding mode, and the arc-shaped rack is arranged in the arc-shaped sliding block. Preferably, the motor is arranged on the outer wall of the screening cavity, a gear is arranged at the output end of the motor, and the gear at the output end of the motor is meshed with the arc-shaped rack gear teeth. Preferably, the arc-shaped rack, the arc-shaped sliding block and the sieve plate are in a coaxial state. Preferably, the reflux assembly is composed of a vertical plate, a reflux pipe, a cylinder shell and an auger stem, wherein the vertical plate is arranged on the bottom plate, and the cylinder shell is arranged on the vertical plate. Preferably, the auger stem is rotatably arranged in the cylinder shell, a feed inlet of the cylinder shell is communicated with a side backflow port of the screening cavity, one end of the backflow pipe is arranged at a discharge port of the cylinder shell, and the other end of the backflow pipe is opposite to the feed hopper of the crushing assembly. Preferably, the crushing assembly comprises a crushing roller, a crushing chamber and a feed hopper, wherein the crushing chamber is arranged at the top feed inlet of the screening cavity, the crushing roller is symmetrically rotated and arranged in the crushing chamber, and the feed hopper is arranged at the top feed inlet of the crushing chamber. Preferably, the lower surface of the bottom plate is provided with four supporting seats, and the four supporting seats are distributed on the bottom plate in a rectangular array. Compared with the prior art, the utility model has the following beneficial effects: In the use process of the building waste recycling machine-made sand preparation device, an external power supply is connected, building waste is led into a crushing assembly for crushing, crushed sand grains fall onto a sieve plate of a sieving cavity, sand grains conforming to the grain size fall through the sieve plate and finally are discharged through an opening at the bottom end of the sieving cavity, sand grains not conforming to the grain size are converged under the action of an inclined plane and finally enter a reflux assembly, and the sand grains reenter the crushing assembly through a feed hopper for secondary crushing under the work of the reflux assembly; In the process, the inclination angle of the sieve plate can be regulated by the regulating component according to the sieving requirement, the inclination angle