Production method for fully separating, regenerating and recycling old gypsum boards

A production method, the technology of old gypsum board, applied in the direction of magnetic separation, solid separation, chemical instruments and methods, etc., can solve the problems affecting the purity of the finished gypsum board, difficult to separate, etc., and achieve the effect of avoiding large color difference and improving purity

Pending Publication Date: 2021-11-12
TAICANG GOLDENMA METAL STRUCTURE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] 1. The magnetic separator can only magnetically separate ferromagnetic substances such as iron, nickel, and cobalt, but is ineffective for non-ferromagnetic metals. Mixing such metals into the gypsum mixture will affect the purity of the finished gypsum board;
[0013] 2. The screening machine can screen out the paper and ribs with larger specifications, but it is difficult to separate the paper and ribs that are small enough to meet the specifications of gypsum powder. The mixing of these papers and ribs into the gypsum mixture will affect the purity of the finished gypsum board

Method used

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  • Production method for fully separating, regenerating and recycling old gypsum boards

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Embodiment Construction

[0056] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.

[0057] see figure 1 , the old gypsum board full separation regeneration recycling production method of an embodiment of the present invention, comprises the following steps:

[0058] S1: manual sorting;

[0059] Use the used gypsum products as raw materials, and manually sort out large-sized foreign objects; manually sorting out large-sized foreign objects first can reduce the workload of subsequent removal of debris, and can also reduce the workload of the crusher;

[0060] S2: Coarse crushing;

[0061] The gypsum raw materials after manual sorting enter the crusher for coarse crushing to obtain massive gypsum raw materials; the jaw crusher breaks large gypsum into smaller blocks to prevent metal objects or non-ferrous metals from being embedded in the gypsum, magnet...

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Abstract

The invention relates to a production method for fully separating, regenerating and recycling old gypsum boards. The production method comprises the following steps of S1, manual sorting; S2, coarse crushing; S3, iron removal; S4, nonferrous metal removal; S5, rolling and screening; S6, pulverizing; S7, vibration filtering; S8, high-temperature decomposition; and S9, gypsum board manufacturing. According to the method, nonferrous metal and fine paper, ribs and other impurities in gypsum raw materials can be effectively removed, the purity of the gypsum board is improved, and high color difference of the gypsum boards manufactured by recycling materials is avoided.

Description

technical field [0001] The invention relates to the field, in particular to a production method for full separation, regeneration and recycling of old gypsum boards. Background technique [0002] Gypsum is a widely used industrial material and construction material, which can be used in gypsum building products, cement retarder, model making, medical food additive, sulfuric acid production, paper filler, paint filler, etc. In recent years, gypsum materials and gypsum products have been widely used in interior decoration and decoration of buildings, especially in the decoration and decoration of family houses. Compared with other similar materials, gypsum products have the characteristics of relatively light texture, high strength and good fire resistance. One of the preferred materials for decoration. [0003] The mining of natural gypsum minerals is easy to destroy the natural ecology, consumes energy, and the cost is high, while the recycling of gypsum products can reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B03C1/32B03C1/23B07C7/04B07B1/28B07B1/46
CPCB02C21/00B03C1/32B03C1/23B07C7/04B07B1/28B07B1/4609
Inventor 马志刚陈伟勇
Owner TAICANG GOLDENMA METAL STRUCTURE
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