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CN-224224283-U - Building waste plastic recycled aggregate preparation facilities

CN224224283UCN 224224283 UCN224224283 UCN 224224283UCN-224224283-U

Abstract

The utility model belongs to the technical field of treatment of building waste plastics, and particularly relates to a device for preparing recycled aggregate of building waste plastics, which comprises a cutting unit, a clamping unit, a pressure sensor and a controller, wherein the cutting unit comprises a longitudinal cutting unit and a transverse cutting unit, the longitudinal cutting unit is used for longitudinally cutting a pipeline into two halves, the transverse cutting unit is used for transversely cutting the pipeline after longitudinal cutting into a plurality of small sections, the clamping unit comprises a plurality of groups of clamping plates which are symmetrically distributed on two sides of a cutting table, each group of clamping plates is driven by a first electric telescopic mechanism, the pressure sensor is embedded into the inner side of the clamping plate and is used for monitoring the clamping force in real time and feeding back the clamping force to the controller, and the controller is used for adjusting the output moment of the first electric telescopic mechanism according to the pressure signal detected by the pressure sensor and maintaining the clamping force within a preset range. The utility model can change the pipeline from a closed tubular structure to an open fragment state, can remove impurities such as cement mortar, paint and the like remained on the inner wall, and improves the quality of recycled aggregate preparation.

Inventors

  • WANG HE
  • JIN BAOXIN
  • WANG YUXIN

Assignees

  • 佳木斯大学

Dates

Publication Date
20260512
Application Date
20250628

Claims (6)

  1. 1. The utility model provides a building waste plastics recycled aggregate preparation facilities which characterized in that includes: the cutting unit comprises a longitudinal cutting unit (1) and a transverse cutting unit (2); The longitudinal cutting unit (1) is movably arranged above the cutting table and is used for longitudinally cutting the pipeline into two halves; A transverse cutting unit (2) which is arranged at one end part of the cutting table and is used for transversely cutting the pipeline after longitudinal sectioning into a plurality of small sections; Clamping unit (3) install on the cutting table for it is fixed to carry out the centre gripping to the pipeline to guarantee the stability when cutting, include: the clamping plates (4) are designed into a plurality of groups, the plurality of groups of clamping plates (4) are symmetrically distributed on two sides of the cutting table, and each group of clamping plates (4) is driven by a first electric telescopic mechanism (5); Pressure monitoring and control system: The pressure sensor (6) is embedded into the inner side of the clamping plate (4) and is used for monitoring the clamping force in real time and feeding back the clamping force to the controller; And the controller dynamically adjusts the output torque of the first electric telescopic mechanism (5) according to the pressure signal detected by the pressure sensor (6) and maintains the clamping force within a preset range.
  2. 2. The apparatus for preparing recycled aggregate of construction waste plastics according to claim 1, wherein the longitudinal cutting unit (1) comprises: The transmission screw rod (7) is arranged above the cutting table through a bearing seat, and one end of the transmission screw rod is connected with an output shaft of the servo motor (8); The sliding block (9) is in transmission threaded connection with the outer side of the transmission screw rod (7); The second electric telescopic mechanism (10) is arranged on the sliding block (9) and is used for adjusting the distance between the first reciprocating saw blade (11) and the pipeline; And the first reciprocating saw blade (11) is arranged on the second electric telescopic mechanism (10) and is used for longitudinally cutting the pipeline along with the movement of the sliding block (9).
  3. 3. The apparatus for preparing recycled aggregate of waste plastic for construction according to claim 1, wherein the transverse cutting unit (2) comprises: A third electric telescopic mechanism (12) vertically fixed to the side wall of the cutting table for adjusting the lateral distance from the second reciprocating saw blade (14) to the pipeline; A fourth electric telescopic mechanism (13) mounted at the tail end of the third electric telescopic mechanism (12) for adjusting the vertical distance from the second reciprocating saw blade (14) to the pipeline; And the second reciprocating saw blade (14) is arranged at the tail end of the fourth electric telescopic mechanism (13) and is used for transversely cutting the pipeline.
  4. 4. The apparatus for preparing recycled aggregate of waste plastic from construction according to claim 1, wherein a pushing mechanism (15) is installed on a side of the cutting table far from the transverse cutting unit (2), and the pushing mechanism (15) comprises: A fifth electric telescopic mechanism (16) which is arranged on the cutting table through a supporting frame and aligned with the central line of the cutting table and is used for pushing the longitudinally cut pipeline to the transverse cutting unit (2); The pushing plate (17) is fixedly arranged at the tail end of the fifth electric telescopic mechanism (16) and is matched with the cutting groove (18) on the cutting table, so that the two half pipes after longitudinal sectioning can be ensured to synchronously move along the cutting table.
  5. 5. The apparatus for preparing recycled aggregate of construction waste plastic according to claim 1, further comprising a cleaning unit (19), wherein a first conveying mechanism (20) is provided between the cleaning unit (19) and the cutting table, the first conveying mechanism (20) is used for conveying cut pipes to the cleaning unit (19) for cleaning, and the cleaning unit (19) comprises; The cleaning tank (21) is provided with a high-pressure spray head (22) at the top, and the high-pressure spray head (22) is used for flushing pipeline fragments entering the cleaning tank (21); the water storage tank (23) is connected with the high-pressure spray head (22) through a pipeline and is used for storing water; A water supply pump (24) is installed on the pipeline for delivering water from the water storage tank (23) to the high pressure nozzle (22).
  6. 6. The apparatus for preparing recycled aggregate of waste plastic for construction according to claim 5, further comprising a crushing device (25) located at a side of the cleaning unit (19) away from the cutting table, wherein a second conveying mechanism (26) is also provided between the crushing device (25) and the cleaning unit (19), and the second conveying mechanism (26) is used for conveying the cleaned pipe fragments into the crushing device (25) for crushing.

Description

Building waste plastic recycled aggregate preparation facilities Technical Field The utility model belongs to the technical field of building waste plastic treatment, and particularly relates to a device for preparing recycled aggregate of building waste plastic. Background The preparation of the recycled aggregate of the building waste plastics refers to a process of converting the waste plastics generated in the building field into the recycled aggregate which can be reused in the fields of building engineering and the like through a series of processing treatments. The waste plastic sources of the building are wide, and the waste plastic sources are like plastic templates, plastic pipes, plastic packaging materials and the like generated in the building construction and dismantling processes. The preparation of the recycled aggregate generally comprises the steps of collection and classification, cleaning and crushing, modification treatment, forming and the like, and at present, the treatment of the waste plastic pipeline mainly depends on a process route of cleaning before cutting and crushing, but the mode has obvious technical defects, and severely restricts the treatment efficiency and the recycling utilization rate, for example: 1. The cylindrical structure leads to a cleaning blind area, namely, the plastic pipeline is of a closed cylindrical structure, the surface exposure area is limited, and particularly, impurities such as cement mortar, paint, adhesive and the like attached to the inner wall are difficult to be directly contacted by a high-pressure water gun or chemical reagent in the cleaning process. The traditional cleaning equipment can only clear visible impurities on the outer wall of a pipeline, the residual rate of the inner wall is up to 30% -50%, and the impurities can be embedded into the recycled aggregate during subsequent crushing to form weak points. The binding force between the impurities and the plastic matrix is weak, and the impurities are easy to become stress concentration areas in subsequent use, so that the compressive strength and the impact toughness of the recycled aggregate are obviously reduced, and the strength requirements of building materials such as concrete and the like can not be met. Furthermore, the presence of impurities can disrupt the homogeneity of the aggregate, resulting in irregular particle shapes (e.g., excessive angularity or increased surface porosity). 2. The pollution at the joint part of the pipe fitting is concentrated, namely the joint (such as an elbow and a tee joint) of the pipe fitting at the joint part of the pipe fitting is easy to accumulate cement residues and sealant due to complex structure, the joint needs to be treated independently by the existing cleaning equipment, and the cleaning time and the cleaning cost are increased. Disclosure of utility model The utility model aims to solve the problems in the prior art by providing a device for preparing recycled aggregate of building waste plastics. The utility model provides a device for preparing recycled aggregate of building waste plastics, which comprises a cutting unit, a transverse cutting unit, a clamping unit and a pressure monitoring and control system, wherein the cutting unit comprises a longitudinal cutting unit and a transverse cutting unit, the longitudinal cutting unit is movably arranged above a cutting table and is used for longitudinally cutting a pipeline into two halves, the transverse cutting unit is arranged at one end part of the cutting table and is used for transversely cutting the pipeline after being longitudinally cut into a plurality of small sections, the clamping unit is arranged on the cutting table and is used for clamping and fixing the pipeline so as to ensure the stability during cutting. Preferably, the longitudinal cutting unit comprises a transmission screw rod, a sliding block, a second electric telescopic mechanism and a first reciprocating saw blade, wherein the transmission screw rod is arranged above the cutting table through a bearing seat, one end of the transmission screw rod is connected with an output shaft of the servo motor, the transmission screw rod is connected to the outer side of the transmission screw rod in a threaded mode, the second electric telescopic mechanism is arranged on the sliding block and used for adjusting the distance between the first reciprocating saw blade and a pipeline, and the first reciprocating saw blade is arranged on the second electric telescopic mechanism and used for longitudinally cutting the pipeline along with the movement of the sliding block. Preferably, the transverse cutting unit comprises a third electric telescopic mechanism, a fourth electric telescopic mechanism and a second reciprocating saw blade, wherein the third electric telescopic mechanism is vertically fixed on the side wall of the cutting table and used for adjusting the transverse distance between the second reciprocating saw