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A preparation method of dolomite composite construction waste building board

A technology of construction waste and building boards, which is applied in the field of building materials, can solve the problems of waste of recyclable parts, environmental pollution, etc., and achieve the effect of improving the structural strength of boards, uniform internal structure, and dense organization

Active Publication Date: 2021-11-05
SHANDONG YUANGEN CHEM TECH RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Random disposal of construction waste not only causes environmental pollution, but also causes waste of recyclable parts of construction waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Method for preparing a plate material of a dolomite composite building scrap construction, including the following steps:

[0015] S1: Calcined, bulld of Dolomite into a diameter of 2 cm, placed in a calciner, calcined at a temperature of 1000 ° C for 3 hours, naturally cooled and crushing and crushing, then spraying water mixing and mixing, moisture content 30% of the digestive material, re-indigestion for 20 minutes, then re-calcination of the digestible material, calcined at 1600 ° C, after calcination for 2 hours, naturally cooled, crushing over 200 mesh sieve, affiliated dolomite powder, spare;

[0016] S2: Recycling construction waste, using a jaw crusher to crude the construction waste, and remove metal impurities through the magnetic option, and then use flotation machine to clean and flothe the waste, remove plastics, wood impurities, collect construction waste, The grinding machine is used to ground, produce the construction residue, and divided into one residue, ...

Embodiment 2

[0021] Method for preparing a plate material of a dolomite composite building scrap construction, including the following steps:

[0022] S1: Calcined, bulld of Dolomite into a diameter of 3 cm, a white cloud stone is placed in a calciner, calcined at 1050 ° C for 3.5 hours, naturally cooling and crushing and pulverizing, then spraying water mixing and mixing, moisture content is 40% of the digestive material, re-indigestion for 30 minutes, then re-calcine the digestible material, calcined temperature 1650 ° C, calcined after 2.5 hours, naturally cooled, pulverized over 200 mesh sieve, affected Dolomite powder, spare;

[0023] S2: Recycling construction waste, using a jaw crusher to crude the construction waste, and remove metal impurities through the magnetic option, and then use flotation machine to clean and flothe the waste, remove plastics, wood impurities, collect construction waste, The grinding machine is used to ground, produce the construction residue, and divided into o...

Embodiment 3

[0028] Method for preparing a plate material of a dolomite composite building scrap construction, including the following steps:

[0029] S1: Calcination, bullion of Dolomite into a diameter of 4 cm is placed in a calciner, calcined in a calciner in a calciner, and then calcined for 4 hours at a temperature of 1100 ° C. After natural cooling, it is removed and crushed, and then mixed with water, mixed with water, and mixed with water. 50% of the digestive material, re-indigestion 40 minutes, then re-furnish the digestible material, calcination temperature 1700 ° C, after calcination for 3 hours, naturally cooled after pulverizing 200 mesh sieve, affiliated dolomite powder, spare;

[0030] S2: Recycling construction waste, using a jaw crusher to crude the construction waste, and remove metal impurities through the magnetic option, and then use flotation machine to clean and flothe the waste, remove plastics, wood impurities, collect construction waste, The grinding machine is used ...

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Abstract

The invention discloses a method for preparing dolomite composite construction waste building boards, which specifically comprises the following operation steps: S1: calcining; S2: recycling construction wastes; S3: premixing; S4: fine mixing; S5: forming boards. The invention uses construction waste as the main raw material to produce building boards. By adding activated dolomite, the boards have the characteristics of dense tissue and uniform internal structure. Under the action of lignin, the internal cohesion of the boards is improved. A reinforced steel mesh is placed in the middle to further increase the structural strength of the board after the board is formed, and the board will not collapse after being cracked, making it safer to use. The invention reduces environmental pollution by recycling the construction waste, and the content of harmful substances in the construction waste is extremely low after long-term emission, and the board produced by the construction waste is safe and environmentally friendly, and is suitable for popularization and application.

Description

Technical field [0001] The present invention belongs to the technical field of building materials, and in particular, the method of preparing a plate material of Dolomite composite building waste construction. Background technique [0002] Construction waste refers to the collectiveness of slag, waste concrete, waste masonry and other waste in production activities of demolition, construction, decoration, repair and other construction industries. Free to discard the building waste, not only environmental pollution, but also cause waste of partial parts in building waste. Therefore, building waste can be used to circulate, used to produce construction sheets, energy saving and environmental protection. Inventive content [0003] It is an object of the present invention to provide a method of preparing a sheet of white-yellow composite building waste construction to solve the problems presented in the above background. [0004] In order to achieve the above object, the present inv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/30
CPCC04B28/30C04B2111/00017C04B18/16C04B18/146C04B18/26C04B7/02C04B24/283C04B24/281C04B24/302C04B2103/65C04B2103/0068
Inventor 张丰庆陈永梅王士平荆蒙蒙许玮张聪李猛
Owner SHANDONG YUANGEN CHEM TECH RES & DEV CO LTD