A kind of waste fiber recycled concrete preparation method
A technology for recycling concrete and waste fibers, applied in solid waste management, sustainable waste treatment, grain treatment, etc., can solve the problems of low feeding efficiency, small ultimate elongation, low tensile strength, etc. inefficient effect
Active Publication Date: 2021-05-28
河北雄安昝岗混凝土有限公司
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Problems solved by technology
The main disadvantages of cement stone, mortar and concrete are: low tensile strength, small ultimate elongation, and brittleness. These shortcomings can be overcome by adding fibers with high tensile strength, high ultimate elongation, and good alkali resistance.
[0003] The following problems often exist in the process of processing waste fibers. First, because the waste fibers are often entangled together, it is often difficult to pull and feed the fibers when the fibers are cut to length. It is often difficult to cut effectively; 2. When the material is automatically loaded through the transmission belt, the waste fiber is often stuck to the outer end of the transmission belt, so that the feeding efficiency is not high
Method used
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[0029] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0030] Such as Figure 1 to Figure 6 As shown, a method for preparing waste fiber recycled concrete uses fiber chopping equipment, and the fiber chopping equipment includes a base 1, an extrusion chopping device 2 and an auxiliary feeding device 3, and the fiber chopping equipment is used for waste The process of fiber processing also includes the following steps:
[0031] S1. Segmentation operation: Preliminary segmentation of the collected waste fiber clusters by manual or mechanical assistance;
[0032] S2. Shredding operation: the split waste fibers are shredded by fiber shredding equipment;
[0033] S3. Screening operation: selecting materials for the chopped waste fibers, and performing secondary shredding on fibers that do not meet the size...
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The invention relates to a method for preparing waste fiber recycled concrete, which uses fiber chopping equipment, and the fiber chopping equipment includes a base, an extrusion chopping device and an auxiliary feeding device, and the upper end of the base is provided with an extrusion chopping device, the rear end of the base is provided with an auxiliary feeding device; the invention utilizes the flexibility of the fiber and adopts the method of extruding the fiber to protrude from the groove to chop the fiber, thereby solving the problem that the common cloth cutting method is difficult to wrap around the The problem of effectively cutting waste fibers together; the invention solves the problem of low feeding efficiency caused by waste fibers sticking to the outer end of the conveyor belt by scraping the fibers adhered to the outer end surface of the feeding belt during operation .
Description
technical field [0001] The invention relates to the technical field of concrete preparation, in particular to a method for preparing waste fiber regenerated concrete. Background technique [0002] Fiber concrete is a general term for composite materials composed of fibers and cement base materials (cement stone, mortar or concrete). The main disadvantages of cement stone, mortar and concrete are: low tensile strength, small ultimate elongation, and brittleness. Adding fibers with high tensile strength, high ultimate elongation, and good alkali resistance can overcome these shortcomings. The cement-based composite material composed of cement slurry, mortar or concrete as the base material and fiber as the reinforcing material is called fiber concrete. [0003] The following problems often exist in the process of processing waste fibers. First, because the waste fibers are often entangled, it is often difficult to pull and feed the fibers when the fibers are cut to length. I...
Claims
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IPC IPC(8): C04B20/02C04B18/04C04B28/00C04B26/00B02C19/00B02C23/08
CPCB02C19/0056B02C23/08C04B18/0427C04B20/02C04B20/026C04B26/00C04B28/00Y02W30/91
Inventor 丁怿
Owner 河北雄安昝岗混凝土有限公司