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Phosphorus plaster tablet processing method

A processing method and technology of gypsum board, which is applied in the field of household board production, achieves the effects of less land occupation, less investment and improved safety

Inactive Publication Date: 2013-05-08
王安全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a phosphogypsum board processing method with simple process, low cost and no formaldehyde pollution, which can improve the utilization value of industrial by-product gypsum, and at the same time improve the The safety of the board

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  • Phosphorus plaster tablet processing method

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Embodiment Construction

[0018] The structure of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] A method for processing a phosphogypsum board, comprising the following steps, a. mixing 75-85 parts by mass of hemihydrate gypsum particles and 15-25 parts of dihydrate gypsum particles and stirring evenly, and the hemihydrate gypsum particles and dihydrate gypsum particles are Particles with a size of 80-600 mesh sieve; b, adding 3-8 parts by mass of kapok fiber for stirring, adding 15-35 parts by mass of clear water for stirring to become uniformly mixed material particles, the clear water adopts Added by spraying, the kapok fiber refers to a mixture of wood fiber and cotton fiber, wherein the wood fiber specification: 1.5-3.5mm long, 0.01-0.5mm in diameter; cotton fiber specification: 0.01-15mm long, 0.01-0.5mm in diameter , the ratio is 50% each; c, spread the material, use a conveyor belt and two throwing...

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Abstract

The invention discloses a phosphorus plaster tablet processing method. The processing method comprises the following steps of: adding water into a certain proportional semi-hydrated gypsum grains, dihydrate gypsum grains and kapok fibre, mixing and stirring, then adopting a dual-rolling throwing spreading machine to carry out spreading, and finally adopting a pressing machine to press into a sheet material so as to obtain a plasterboard after hydration. Compared with the prior art, the phosphorus plaster tablet processing method provided by the invention has the characteristics of simple process and cheap cost, and realizes flow production and improves the working efficiency; the prepared plate has good intensity, fold resistance and high the surface finish quality, and meanwhile, the formaldehyde pollution is not contained; and in addition, the method improves the utility value of industry byproduct gypsum, and improves the security of a home furnishing sheet material.

Description

technical field [0001] The invention relates to a production technology of house boards, in particular to a processing method of gypsum house boards. Background technique [0002] Gypsum, whose main component is calcium sulfate, includes natural gypsum and industrial by-product gypsum. Industrial by-product gypsum is a by-product of some industrial processes, which mainly includes phosphogypsum and desulfurized gypsum. At present, the cumulative stockpiles of industrial by-product gypsum have exceeded 300 million tons, of which, desulfurization gypsum is more than 50 million tons and phosphogypsum is more than 200 million tons. A large amount of industrial by-product gypsum is piled up, which not only occupies land, but also wastes resources. The acid and other harmful substances contained in it are likely to pollute the surrounding environment. It has become an important factor restricting the sustainable development of my country's coal-fired unit flue gas desulfurization...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/14
Inventor 王安全
Owner 王安全
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