Preparation method of environment-friendly plate of building

A construction and board technology, applied in the field of environmental protection board preparation for construction, can solve the problems of subdividing difficult waste into various raw materials, a lot of manpower and financial resources, and inability to fully utilize domestic waste, and achieve high market economic value and social Value, high recycling rate, clear effect of recycling

Inactive Publication Date: 2014-09-03
广州保绿环保科技有限公司
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Problems solved by technology

Before being used to prepare wood-plastic composite materials, the raw materials are subdivided, that is, thermoplastics and vegetable fiber raw materials are separately converted into semi-finished products, instead of directly converting raw materials into finished products that can be used directly. From the preparation of various raw materials to the preparation The whole process of forming a plate requires a lot of manpower and financial resources
Especially when a large amount of thermoplastics and plant fibers are extracted from municipal solid waste as raw materials, it is difficult to subdivide the waste into various raw materials, and only part of the components in municipal solid waste can be converted into a single one, which has relative limitations characteristics, and cannot fully utilize domestic waste

Method used

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  • Preparation method of environment-friendly plate of building

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Embodiment 1

[0029] see figure 1 As shown, the preparation method of environmental protection boards for buildings is to use waste plastics, waste rubber, waste furniture, waste textiles, branches, leaves, paper, grass, and waste wood that are sorted out of municipal solid waste as the main raw materials. Plate, wherein, comprises the steps:

[0030] (1) Coarse crushing and sorting treatment, sending waste plastics, waste rubber, waste furniture, waste textiles, branches, leaves, paper, grass, and waste wood into the coarse crusher, which performs primary crushing Finally, coarsely crushed raw materials with a particle size of 0 to 20 cm are obtained; the coarsely crushed raw materials enter the first rolling sieve for rolling screening to obtain the oversize with a particle size greater than 6 to 8 cm and the undersize with a particle size of less than 6 to 8 cm. The oversize material is transferred to the direction of the magnetic separator and wind separator in sequence; the magnetic s...

Embodiment 2

[0043] see figure 1 As shown, the difference from Embodiment 1 is that, between step (1) and step (2) of Embodiment 1, a step of crushing and sorting the heavy materials is further included. This is due to the selection of light and heavy substances by wind selection, and the composition of heavy substances mainly includes tough substances such as block thermoplastics, rubber, textiles, branches and wood blocks, and also includes a small part of particles with a particle size greater than 6-6. 8cm glass, sand, kitchen waste and other fragile substances; it can be seen that there are still a lot of thermoplastics and vegetable fibers in the heavy substances. In order to make full use of this part of the waste resources, further crushing and screening are needed to remove the fragile substances. However, the steps of the medium crushing and sorting treatment of the heavy materials include: conveying the heavy materials to the medium crusher for secondary crushing, and passing th...

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Abstract

The invention discloses a preparation method of an environment-friendly plate of a building. The preparation method comprises the following steps: coarse crushing and sorting treatment, namely primarily crushing garbage, and sorting out thermoplastic plastics and plant fiber raw materials; drying and sterilizing treatment, namely sterilizing and dehydrating the raw materials at a high temperature; crushing treatment, namely crushing the raw materials; preparation of a plate base material, namely adding thermoplastic plastic powder, plant fiber powder and a plastic additive according to the requirement after measuring the content of plastics of the raw materials, and then mixing, heating, agitating and extruding the mixture to form the plate base material; and molding of the plate, namely extruding the plate base material to form a plate, sequentially fitting a reinforced net and a decorative membrane on the surface of the plate, cutting the plate which is cooled and shaped to form the finished plate in a needed size. With the preparation method, domestic garbage can be classified according to the usage, each component in the domestic garbage can be adequately utilized, and plastic substances and plant fiber substances can be directly utilized and converted to form the finished plate of a building, which can be directly utilized, without being reclassified.

Description

technical field [0001] The invention relates to garbage recovery and treatment technology, in particular to a method for preparing an environmentally friendly board for construction. Background technique [0002] At present, wood-plastic composite panels have been widely used in the construction field, and there is an increasing demand for thermoplastics and vegetable fiber raw materials, which mainly include wood powder, bamboo powder, chaff powder or crop straw powder and plastic resin or Waste plastics, these raw materials are generally used in the proportion of powdery or granular semi-finished products. Before being used to prepare wood-plastic composite materials, the raw materials are subdivided, that is, thermoplastics and vegetable fiber raw materials are separately converted into semi-finished products, instead of directly converting raw materials into finished products that can be used directly. From the preparation of various raw materials to the preparation The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D7/00B29B17/00
CPCY02W30/62
Inventor 危志莊
Owner 广州保绿环保科技有限公司
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