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Production of fireproof door filling material by using industrial waste material of metal door production and preparation method thereof

A technology of industrial waste and fire doors, which is applied in the field of lightweight foam materials, can solve the problems of poor sound absorption and sound insulation, heat insulation performance, large human body damage, and high production costs, so as to improve corporate and social benefits and solve pollution Environmental and production cost reduction effects

Inactive Publication Date: 2011-06-15
ZHEJIANG MEIXIN IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of honeycomb paper are: it will burn in case of fire, has no fireproof performance, poor sound absorption and heat insulation performance, is easy to be affected by moisture, will soften when it meets water, and has poor waterproof and water resistance performance.
The disadvantages of calcium silicate board sandwiched with aluminum silicate wool are: low fire resistance level, melting at high temperature, no fire prevention effect, high production cost, asbestos irritation, and great damage to human body by dust inhalation. The State Environmental Protection Administration clearly stipulated in 2005 that household products must not contain asbestos, and adhesives must not contain harmful substances such as formaldehyde and benzene
[0005] For this reason, many scientific research institutions, manufacturers and people of insight have continuously carried out development and research on the above-mentioned problems of existence, but there is no better improvement method so far.

Method used

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preparation example Construction

[0047] The preparation method of described fireproof material, it comprises the steps:

[0048] (1), according to the above weight ratio and order, magnesium oxide, metal phosphating waste residue precipitated, water repellent, water reducer, magnesium sulfate, transfer waste paper are added to the mixer and mixed, and the phosphating waste water is added to dilute to Thick base slurry; at the same time, the foaming agent is made into foam slurry;

[0049] (2) Add the foam slurry to the thick base slurry in a ratio of 4 to 15 times the volume, and then perform secondary stirring to form a homogeneous foam slurry;

[0050] (3), pouring the slurry into the mold to solidify and form;

[0051] (4) After demoulding, it is naturally cured for 3 to 10 days under normal temperature and pressure to become a finished product.

[0052] The phosphating wastewater contains phosphate radicals.

Embodiment 1

[0053] Embodiment 1: the present embodiment is 200kg / m by bulk density 3 Prepare, wherein 100kg of magnesium oxide, 50kg of anhydrous magnesium sulfate, 23kg of waste residue precipitated after metal phosphating treatment, 15kg of transfer waste paper, 5.5kg of waterproofing agent, 6kg of water reducing agent, and 0.5kg of foaming agent, as described above The preparation method is to add 80kg of phosphating treatment wastewater and dilute it into a thick base slurry, then add foam slurry with a foam diameter of ≤1mm and an amount of 13 to 15 times that of the thick base slurry for secondary stirring, and make 1970mm×780mm×50mm of plates. Compressive strength 1.40Mpa, flexural strength 0.87Mpa.

Embodiment 2

[0054] Embodiment 2: the present embodiment is 300kg / m by bulk density 3 Prepared, wherein 150kg of magnesium oxide, 75kg of anhydrous magnesium sulfate, 34.5kg of waste residue precipitated after metal phosphating treatment, 22.5kg of transfer waste paper, 8.6kg of waterproofing agent, 9kg of water reducing agent, and 0.4kg of foaming agent, according to the above In the preparation method, 120 kg of phosphating wastewater is added to dilute it into a thick base slurry, and then the foam slurry with a foam diameter of ≤ 1 mm and an amount of 9 to 11 times that of the thick base slurry is added for secondary stirring to make a 1970mm×780mm ×50mm plate. Compressive strength 1.84Mpa, flexural strength 1.20Mpa.

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Abstract

The invention discloses a fire door filling material produced by the industrial waste material for producing metal door and a process for preparation, which includes magnesium oxide, magnesium sulfate, the depositing waste slag of the metal after bonderite process, transfer waste paper, water proofing agent, water reducing agent and foaming agent, the volume weight is between 200-500kg / m3, the proportionings of each component according to weight percentage respectively are that the magnesium oxide takes 40-65, the magnesium sulfate takes 20-30, the depositing waste slag of the metal after bonderite process takes 8-13, the transfer waste paper takes 5-10, the water proofing agent takes 2-6, the water reducing agent takes 1.5-6 and the foaming agent takes 0.1-0.5. Employing the technical scheme, the product has the advantages of high mechanical strength, light weight, high grade of fire resistance, good effect of sound absorption and acoustic insulation, strong anti-weatherability, heatinsulation, heat preservation and energy conservation, easy production and no poison, on hazard and no radiation and the like. The product can be widely used in metal door industry, architectural materials industry and the related industries.

Description

technical field [0001] The invention relates to a lightweight foaming material, in particular to a kind of phosphating waste slag, waste water and transfer printing waste paper produced in the production process of metal doors such as anti-theft doors, fire doors, and steel entrance doors as raw materials to produce fireproofing materials. Fireproof filling material for doors and preparation method thereof. Background technique [0002] At present, in the production process of metal doors such as anti-theft doors, fire doors, and steel entrance doors, in order to prevent the metal surface from rusting and make the paint have better adsorption, the metal doors must be pickled and degreased Phosphating rust removal treatment, in this process, the phosphating waste residue and waste water precipitated after metal phosphating treatment are discharged. Due to the addition of more chemical raw materials in the phosphating aqueous solution, the discharged waste residue and waste w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 应连希
Owner ZHEJIANG MEIXIN IND CO LTD
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