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CN-122006880-A - Building rubbish reducing mechanism

CN122006880ACN 122006880 ACN122006880 ACN 122006880ACN-122006880-A

Abstract

The invention provides a construction waste crushing device which comprises a cavity, a crushing unit, a magnetic filter screen, a dust collection mechanism, a pushing mechanism and a collecting mechanism, wherein the crushing unit is arranged in the cavity, the magnetic filter screen is fixedly arranged in the cavity, the dust collection mechanism penetrates through the cavity and faces to the magnetic filter screen, the collecting mechanism is rotatably arranged in the cavity and is provided with an opening, the pushing mechanism is telescopically arranged in the cavity, and when the pushing mechanism stretches, the collecting mechanism can rotate and open the opening of the pushing mechanism, and meanwhile waste on the magnetic filter screen is pushed into the collecting mechanism. The construction waste crushing device can prevent metal scraps from being sucked together, so that the treatment steps of waste water are reduced, and the utilization rate of the waste materials can be further improved.

Inventors

  • YANG MINGJIE

Assignees

  • 青岛台成环保有限公司

Dates

Publication Date
20260512
Application Date
20260325

Claims (10)

  1. 1. The construction waste crushing device is characterized by comprising a cavity, a crushing unit, a magnetic filter screen, a dust collection mechanism, a pushing mechanism and a collection mechanism; the crushing unit is arranged in the cavity, the magnetic filter screen is fixedly arranged in the cavity, and the dust collection mechanism penetrates through the cavity and faces the magnetic filter screen; the collecting mechanism is rotatably arranged in the cavity and is provided with an opening, the pushing mechanism is telescopically arranged in the cavity, and when the pushing mechanism stretches, the collecting mechanism can rotate and open the opening of the pushing mechanism, and meanwhile, the waste on the magnetic filter screen is pushed into the collecting mechanism.
  2. 2. The construction waste crushing device according to claim 1, further comprising a baffle mechanism, wherein the baffle mechanism is disposed between the feeding port of the cavity and the crushing unit, and the pushing mechanism does not extend until the baffle mechanism seals the feeding.
  3. 3. The construction waste crushing device according to claim 2, wherein the baffle mechanism comprises two baffle assemblies, a driving assembly and a driving plate, wherein the two baffle assemblies are oppositely arranged and rotatably penetrate through the cavity, the two baffle assemblies can prevent materials from entering the crushing unit through rotation, the driving assembly is arranged on the cavity and can drive the baffle assemblies to rotate, the driving plate is arranged on the baffle assemblies, and the driving plate can enable the pushing mechanism to stretch after rotating along with the baffle assemblies.
  4. 4. The construction waste crushing device according to claim 3, wherein the baffle assembly comprises a baffle body, a baffle rotating shaft and a baffle gear, the baffle rotating shaft is rotatably arranged on the cavity in a penetrating mode, the baffle body is located in the cavity and fixedly arranged on the baffle rotating shaft, the baffle gear is coaxially fixedly arranged on the baffle rotating shaft, the two baffle gears are meshed with each other, the driving assembly can drive the baffle gear to rotate, and the driving plate is fixedly arranged on one baffle rotating shaft and enables the pushing mechanism to stretch out and draw back.
  5. 5. The construction waste crushing device according to claim 4, wherein the driving assembly comprises a driving motor and a driving gear, the driving motor is arranged on the cavity, and the driving gear is coaxially and fixedly arranged on an output shaft of the driving motor and meshed with a baffle gear.
  6. 6. The construction waste crushing device according to claim 5, wherein the pushing mechanism comprises a first electric telescopic rod, a first pushing plate and a connecting rope, the first electric telescopic rod is arranged on the cavity, the first pushing plate is fixedly arranged at the telescopic end of the first electric telescopic rod and is clung to one side of the magnetic filter screen, which faces the crushing unit, one end of the connecting rope is connected with the telescopic end of the first electric telescopic rod, the other end of the connecting rope is connected with the collecting mechanism, and the extending of the first electric telescopic rod can drive the collecting mechanism to rotate through the connecting rope.
  7. 7. The construction waste crushing device according to claim 6, wherein the collecting mechanism comprises a collecting shaft, a collecting box and a torsion spring, the collecting shaft is rotatably arranged in the cavity, the collecting box is fixedly arranged on the collecting shaft and is connected with the cavity through the torsion spring, one end of the connecting rope is connected with the collecting box, and the other end of the connecting rope is connected with the telescopic end of the first electric telescopic rod.
  8. 8. The construction waste crushing device according to claim 7, wherein the dust suction mechanism comprises a water tank, a first air pump, a dust suction pipe and a dust suction cover, the water tank is arranged on the cavity and is communicated with the dust suction pipe through the first air pump, and the dust suction cover is arranged at the tail end of the dust suction pipe and faces the magnetic filter screen.
  9. 9. The construction waste crushing device according to claim 8, wherein the magnetic filter screens are provided with a plurality of groups, the pore diameters of the magnetic filter screens are sequentially reduced and the magnetism of the magnetic filter screens is sequentially increased from top to bottom.
  10. 10. The construction waste crushing device according to claim 9 is further characterized by comprising a flow guide pipe, a second air pump, a second electric telescopic rod and a second pushing plate, wherein one end of the flow guide pipe faces the uppermost magnetic filter screen, the flow guide pipe penetrates through the cavity, the other end of the flow guide pipe is connected with the second air pump, the second air pump is arranged on the top surface of the cavity, the second electric telescopic rod is arranged on the cavity, the second pushing plate is fixedly arranged on the telescopic end of the second electric telescopic rod, and the second pushing plate can push metal scraps adsorbed by the uppermost magnetic filter screen into the flow guide pipe.

Description

Building rubbish reducing mechanism Technical Field The invention relates to the technical field of buildings, in particular to a building rubbish crushing device. Background Crushing is a core pre-process of recycling construction waste, and the blocky construction waste such as waste concrete, brick blocks and stone materials is crushed to a specified particle size through a crushing device, so that the method can be subsequently used for preparing recycled products such as recycled aggregate, recycled bricks and roadbed fillers. However, during the high-speed impact and extrusion crushing process of the construction waste, a large amount of dust with extremely fine particle size can be generated, if the dust is not controlled, the air environment of the operation site can be seriously polluted, the physical health of operators is damaged, and meanwhile, the dust does not meet the related standard requirements of environment-friendly construction. To above-mentioned dust pollution problem, the solution that generally adopts among the prior art is supporting dust collecting system that sets up at dust escape points such as reducing mechanism's crushing chamber, discharge gate, gathers the dust that produces in the operation process in the dust collecting equipment through the mode of negative pressure suction and carries out purification treatment to this effective management and control that realizes the dust. However, in practical engineering application, the technical scheme has obvious technical defects. The construction waste raw materials are commonly mixed with metal components such as waste steel bars, iron wires, embedded hardware, metal pipelines and the like, and even if preliminary iron removal pretreatment is carried out before crushing, a large number of fine metal components still exist, the metal components embedded in the concrete cannot be completely separated, and the metal components can be crushed together with the construction waste in the crushing process to form a large number of fine metal scraps. The existing dust collection system cannot distinguish dust from metal scraps in the dust suction process, and the metal scraps with the particle size being adaptive can be sucked into the dust collection system along with the dust under negative pressure, so that the metal scraps and the dust are mixed with each other in a dust collection link. On one hand, the metal scraps belong to high-added-value recyclable resources, the metal scraps mixed in the dust cannot be directly recycled, if the purification and recycling of the metal scraps are realized, a plurality of separation procedures such as screening, magnetic separation and reselection are additionally added, so that the equipment investment, labor cost and energy consumption of construction waste treatment are greatly increased, the technological process of recycling treatment is prolonged, and the recycling efficiency of metal resources is reduced. At present, the improvement scheme aiming at the problem in the prior art is mainly focused on a pre-iron removing step before crushing or a metal separating process is added at the rear end of a dust removing system, the problem that metal scraps newly generated in the crushing process are mixed into dust cannot be thoroughly solved, the damage of the metal scraps to dust removing equipment cannot be reduced from the root, the process flow of metal recovery cannot be simplified, and a set of mature technical scheme capable of synchronously realizing high-efficiency separation of dust and the metal scraps in the dust sucking step, recovering dust removing effect and metal resources and reducing equipment loss is not formed. Disclosure of Invention Aiming at the defects in the prior art, the invention provides a construction waste crushing device, which aims to solve the technical problem that metal scraps are sucked by a dust suction mechanism along with dust in the construction waste crushing process in the background art. In order to solve the technical problem, the invention adopts the following technical scheme: a construction waste crushing device comprises a cavity, a crushing unit, a magnetic filter screen, a dust collection mechanism, a pushing mechanism and a collecting mechanism; the crushing unit is arranged in the cavity, the magnetic filter screen is fixedly arranged in the cavity, and the dust collection mechanism penetrates through the cavity and faces the magnetic filter screen; the collecting mechanism is rotatably arranged in the cavity and is provided with an opening, the pushing mechanism is telescopically arranged in the cavity, and when the pushing mechanism stretches, the collecting mechanism can rotate and open the opening of the pushing mechanism, and meanwhile, the waste on the magnetic filter screen is pushed into the collecting mechanism. Further, a baffle mechanism is further arranged, the baffle mechanism is arranged between the feeding hole of the cavity