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Process for reprocessing marble scraps for road plates

A marble and scrap technology, applied in the field of marble scrap reprocessing technology, can solve the problems of environmental pollution, material waste, small size, etc., achieve the effects of good gloss, reduce waste pollution, and prolong service life

Inactive Publication Date: 2017-10-20
合肥慧林建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after cutting, the cut off scraps are often thrown away because of their small size and strange shape, which is not only a waste of materials, but also causes some pollution to the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] On the one hand, this embodiment provides a marble scrap reprocessing process for road slabs. The marble scrap reprocessing process for road slabs specifically includes the following steps:

[0081] Step (1): Take the marble scraps and cut them into boards, and then crush them with an ore crusher to form marble particles, and the size of the marble particles is below 1.5cm;

[0082] Step (2): Soak the marble particles in step (1) in sodium hydroxide with a mass concentration of 15% for 3.5 hours, and stir until the edges and corners of the marble particles are passivated, remove them, wash them with water, and dry them in the air ;

[0083] Step (3): Add a phenol-formaldehyde resin binder to the marble particles in step (2), stir evenly, and pour it into a mold in the shape of a road slab;

[0084] Step (4): Put the mold in the shape of road slab into an oven and slowly heat it to 90°C, keep it warm for 5 hours, and then demould after natural cooling to obtain a marble...

Embodiment 2

[0102] On the one hand, this embodiment provides a marble scrap reprocessing process for road slabs. The marble scrap reprocessing process for road slabs specifically includes the following steps:

[0103] Step (1): Take the marble scraps and cut them into boards, and then crush them with an ore crusher to form marble particles, and the size of the marble particles is below 1.5cm;

[0104] Step (2): Soak the marble particles in step (1) in sodium hydroxide with a mass concentration of 12% for 4.5 hours, and stir until the corners of the marble particles are passivated, remove them, wash them with water, and dry them in the air ;

[0105] Step (3): Add a phenol-formaldehyde resin binder to the marble particles in step (2), stir evenly, and pour it into a mold in the shape of a road slab;

[0106] Step (4): Put the mold in the shape of road slab into an oven and slowly heat it to 90°C, keep it warm for 2 hours, let it cool down naturally, and demould to get a marble slab;

[0...

Embodiment 3

[0124] On the one hand, this embodiment provides a marble scrap reprocessing process for road slabs. The marble scrap reprocessing process for road slabs specifically includes the following steps:

[0125] Step (1): Take the marble scraps and cut them into boards, and then crush them with an ore crusher to form marble particles, and the size of the marble particles is below 1.5cm;

[0126] Step (2): Soak the marble particles in step (1) in sodium hydroxide with a mass concentration of 13% for 4 hours, and stir until the edges and corners of the marble particles are passivated, remove them, wash them with water, and dry them in the air ;

[0127] Step (3): Add a phenol-formaldehyde resin binder to the marble particles in step (2), stir evenly, and pour it into a mold in the shape of a road slab;

[0128] Step (4): Put the mold in the shape of the road slab into an oven and slowly heat it to 90°C, keep it warm for 4 hours, and then demould after natural cooling to obtain a marb...

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Abstract

The invention belongs to the technical field of processing of road plates, and provides a process for reprocessing marble scraps for road plates. The process comprises the following steps: crushing to form marble particles; placing the marble particles in sodium hydroxide with a mass concentration of 12-15% and soaking for 3.5-4.5 hours; adding a phenol-formaldehyde resin binder to the marble particles, stirring uniformly, pouring into a mold in a shape of the road plate; placing the mold into an oven, slowly heating to 90 DEG C, keeping the temperature for 2-5 hours, naturally cooling and demolding; defining the thickness; reworking; coating with waterproof glue; and grinding and polishing the surface for smoothing, showing a raw color of the marble and exposing patterns. The process provided by the invention combines chemical treatment with physical treatment, reprocesses the marble scraps on the basis of effectively utilizing original components of the marble, obtains the marble with high strength and good glossiness, is suitable for processing the road plates, and recycles the marble scraps.

Description

technical field [0001] The invention belongs to the technical field of road slab processing, and in particular relates to a marble scrap reprocessing technology for road slabs. Background technique [0002] Marble slabs are used as road slabs with beautiful colors and patterns, high compressive strength and good physical and chemical properties. The resources are widely distributed and easy to process. With the development of the economy, the application range of marble continues to expand, and the amount used is increasing. Big, plays an important role in people's life. Marble is often cut into different shapes in the process of being used as road slabs to match the main effect. However, after cutting, the cut off scraps are often thrown away because of their small size and strange shape, which is not only a waste of materials, but also causes certain pollution to the environment. Contents of the invention [0003] Aiming at the defects in the prior art, the object of t...

Claims

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Application Information

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IPC IPC(8): C04B26/12C04B20/02E01C5/02
CPCC04B26/122C04B20/023E01C5/02C04B18/12
Inventor 刘伍
Owner 合肥慧林建材有限公司
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