A crushing and refining device for reuse of concrete blocks

A concrete block and crushing box technology, applied in the field of construction machinery, can solve the problems of insufficient and thorough concrete crushing effect and insufficient refinement degree, and achieve the effect of improving the grinding effect, promoting the degree of refinement, and increasing the crushing range.

Active Publication Date: 2020-10-02
浏阳市飞宇混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Before the concrete block is reused, it needs to be fully crushed and refined to achieve a state of relatively finely divided small particles, which is convenient for further finishing treatment. However, the crushing effect of the current crushing device on concrete is not sufficient and thorough. Therefore, a crushing and refinement device for reuse of concrete blocks is provided to solve the above technical problems

Method used

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  • A crushing and refining device for reuse of concrete blocks
  • A crushing and refining device for reuse of concrete blocks
  • A crushing and refining device for reuse of concrete blocks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see Figure 1-3 , a crushing and refining device for reuse of concrete blocks, comprising a base 1 and a crushing box 19 fixed on the base 1, a top plate 13 is fixed on the crushing box 19, and a sieve tray 20 is horizontally rotated in the crushing box 19, Two crushing platens 8 are rotated above the sieve tray 20, and the crushing box 19 is an open structure, and the crushing box 19 is used as a container for crushing concrete blocks, and the concrete blocks placed in the crushing box 19 fall on the sieve tray 20.

[0023] A spur rack II30 is installed horizontally in the crushing box 19, and the bottom of the spur rack II30 is pivotally connected with a transmission sleeve 17 fixedly connected with the crushing platen 8. The transmission sleeve 17 is sleeved and fixed with a cylindrical spur gear 12. 19 is horizontally fixed with a spur rack I18 meshing with the cylindrical spur gear 12, and a motor I5 is fixed on the base 1, and the output shaft of the motor I5 is c...

Embodiment 2

[0030] On the basis of Embodiment 1, in addition, the grinding bottom plate 4 located at the bottom of the sieve pan 20 is hinged on the inner wall of the crushing box 19, and several grinding projections 29 are fixed on the upper surface of the grinding bottom plate 4 and the bottom surface of the sieve pan 20.

[0031] During the rotation process of the sieve pan 20, the more fully ground concrete blocks pass through the sieve holes on the sieve pan 20 and fall on the grinding bottom plate 4, and the relative sliding between the sieve pan 20 and the grinding bottom plate 4 realizes further grinding of the concrete by the grinding projections 29. Grinding and refining greatly improves the degree of crushing.

[0032] Further, the inner side wall of the crushing box 19 is provided with a circumferential limit groove 27, and the side wall of the sieve tray 20 is fixed with a transmission ring plate 28 slidably embedded in the circumferential limit groove 27. During the rotation ...

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Abstract

The invention discloses a breaking refining device used for concrete block reutilization and relates to the technical field of building machines. The breaking refining device comprises a base and a smashing box fixed to the base. A top plate is fixed to the smashing box, and a screen tray is horizontally and rotationally arranged in the smashing box. A spur rack II is transversely installed in thesmashing box in a sliding manner, and the bottom of the spur rack II is connected with a transmission casing pipe in a pivot manner, wherein the transmission casing pipe is fixedly connected with a breaking pressing plate. The transmission casing pipe is fixedly sleeved with a cylindrical spur gear. By means of the breaking refining device, due to relative rotation of the breaking pressing plateand the screen tray, concrete blocks on the screen tray can be rotationally broken, the breaking pressing plate conducts transverse reciprocating motion while rotating, and the breaking range of the concrete blocks is greatly enlarged; the screen tray also has a screening effect, due to the cooperation of a grinding bottom plate and the screen tray, the effect of conducting secondary grinding on the primarily broken concrete blocks is achieved, and the refining degree is greatly promoted; and an arranged smashing blade rotates along with a driving shaft, the concrete grinding effect is greatlyimproved, and the refining degree is higher.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a crushing and refining device for reuse of concrete blocks. Background technique [0002] Aggregate is separated from waste commercial concrete to produce recycled aggregate, and the remaining hardened cement slurry can be used as foundation modification material to achieve 100% utilization. It is found through experiments that waste commercial concrete can be processed by low-temperature calcination, and regenerated cementitious materials with hydration activity can be prepared from cement stone powder separated from waste commercial concrete. The hydration activity is related to the calcination temperature. The recycled gelling material has the highest hydration activity. [0003] Before the concrete block is reused, it needs to be fully crushed and refined to achieve a state of relatively finely divided small particles, which is convenient for further finishin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C21/00B02C7/00B02C7/12B02C7/16B02C23/16
CPCB02C7/00B02C7/12B02C7/16B02C21/00B02C23/16B02C2023/165
Inventor 不公告发明人
Owner 浏阳市飞宇混凝土有限公司
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