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A method for producing calcium-silicon board by utilizing papermaking lime mud and quartz stone board waste

A technology of quartz slate and white mud for papermaking, applied in solid waste management, sustainable waste treatment, climate sustainability, etc. The effect of saving construction materials and reducing manufacturing costs

Inactive Publication Date: 2015-08-26
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problems of waste waste, environmental pollution and high energy consumption in the production of existing calcium-silicon slabs in the existing papermaking enterprises and artificial quartz slab industries, the present invention proposes a method for producing calcium-silicon slabs using papermaking white mud and quartz slate wastes , to achieve the purpose of energy saving, emission reduction and waste utilization

Method used

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  • A method for producing calcium-silicon board by utilizing papermaking lime mud and quartz stone board waste
  • A method for producing calcium-silicon board by utilizing papermaking lime mud and quartz stone board waste
  • A method for producing calcium-silicon board by utilizing papermaking lime mud and quartz stone board waste

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Embodiment 1

[0030] A method for producing calcium-silicon slabs by using papermaking lime mud and quartz slate wastes, comprising the following steps:

[0031] (1) Take out the quartz slate waste, sieve and press filter to obtain the quartz slate waste powder, and press filter to make the water content of the waste at 10% ± 5%;

[0032] (2) Take raw materials by weight in the following ratios:

[0033] 30 parts of papermaking white mud, 40 parts of quartz slate waste powder, 10 parts of early-strength Portland cement, 5 parts of high-strength alumina fiber with a length of 4-8 mm, 0.3 parts of water-reducing and waterproofing agent, and 15 parts of water;

[0034] (3) The above materials are mixed and molded, the molding pressure is 50-60Mpa, demoulding, and natural curing for 28 days.

[0035] The papermaking lime mud has a water content of 20% to 25%, a calcium content of 60% to 70%, and residual papermaking fibers of 5% to 10%.

[0036] The quartz slate waste has a moisture content o...

Embodiment 2

[0044] (1) Take out the quartz slate waste, sieve and press filter to obtain the quartz slate waste powder, and press filter to make the water content of the waste at 10% ± 5%;

[0045] (2) Take raw materials by weight in the following ratios:

[0046] 35 parts of papermaking white mud, 35 parts of quartz slate waste powder, 15 parts of early-strength Portland cement, 7 parts of high-strength alumina fiber with a length of 4-8mm, 0.4 parts of water-reducing and waterproofing agent, and 17 parts of water;

[0047] (3) The above materials are mixed and molded, the molding pressure is 50-60Mpa, demoulding, and natural curing for 28 days.

[0048] The papermaking lime mud has a water content of 20% to 25%, a calcium content of 60% to 70%, and residual papermaking fibers of 5% to 10%.

[0049] The quartz slate waste has a moisture content of 10% to 15%, SiO 2 The content is 60%-70%, the resin content is 8%-12%, the content of the kraft paper laid on the upper and lower sides of t...

Embodiment 3

[0056] A method for producing calcium-silicon slabs by using papermaking lime mud and quartz slate wastes, comprising the following steps:

[0057] (1) Take out the quartz slate waste, sieve and press filter to obtain the quartz slate waste powder, and press filter to make the water content of the waste at 10% ± 5%;

[0058] (2) Take raw materials by weight in the following ratios:

[0059] 30 parts of papermaking white mud, 40 parts of quartz slate waste powder, 20 parts of early-strength Portland cement, 8 parts of high-strength alumina fiber with a length of 4-8 mm, 0.5 parts of water-reducing and waterproofing agent, and 20 parts of water;

[0060] (3) The above materials are mixed and molded, the molding pressure is 50-60Mpa, demoulding, and natural curing for 28 days.

[0061] The papermaking lime mud has a water content of 20% to 25%, a calcium content of 60% to 70%, and residual papermaking fibers of 5% to 10%.

[0062] The quartz slate waste has a moisture content o...

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Abstract

The invention discloses a method for producing a calcium silicate board by utilizing papermaking white clay and quartz stone wastes. The method comprises the following steps: taking out the quartz stone wastes, sieving and filter-pressing to obtain quartz stone waste powder; mixing and forming the papermaking white clay, the quartz stone wastes, high-early-strength silicate cement, high-strength alumina fiber, a water reducing waterproof agent and water, demoulding and naturally curing to obtain the calcium silicate board. The method has the benefits that by utilizing a large quantity of industrial wastes, the environmental load and the manufacturing cost of wall materials are reduced, a large quantity of building materials are saved, the cultivated land is protected, the double effects of controlling the environmental pollution and comprehensively and efficiently utilizing the wastes are achieved, so that the sustainable development of the papermaking industry and the wall material industry is promoted; the wall materials prepared by the method have better rupture strength, good heat insulation property, small density and light self-weight.

Description

technical field [0001] The invention relates to a method for producing calcium-silicon plate by using construction waste, in particular to a method for producing calcium-silicon plate by using papermaking white mud and quartz stone plate waste. Background technique [0002] Calcium silicon board is a new type of board mainly made of silicon and calcium materials. The product has the advantages of light weight, high strength, fireproof and heat insulation, and good processability. It can be widely used in fireproof partition panels of high-rise and public buildings, Ceiling boards, air ducts, compartment boards of various ships, and fire doors, etc. [0003] According to the existing technology, about 1 ton of lime mud is produced for every 1 ton of pulp produced, and with the increase in the number and scale of alkali recovery systems newly built by pulp and paper enterprises in my country, the produced lime mud will increase and accumulate in a large proportion. [0004] P...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B18/30C04B14/38
CPCY02W30/91
Inventor 张丰庆陈永梅田清波徐丽娜岳雪涛
Owner SHANDONG JIANZHU UNIV