Ceramsite refractory material based on mud recycling soil and preparation method thereof

A refractory material and resource utilization technology, applied in the field of mud resource utilization, can solve the problems of consuming large and high-quality soil, destroying the ecological environment, etc., and achieve high social and economic value, the unity of ecological and economic benefits, and high strength.

Inactive Publication Date: 2020-05-05
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Ceramsite is widely used in the fields of building materials, horticulture and chemical industry, but the mining of traditional ceramsite raw materials consumes a lot of high-quality soil and damages the ecological environment, so it is necessary to find new alternative raw materials

Method used

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  • Ceramsite refractory material based on mud recycling soil and preparation method thereof

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Effect test

Embodiment 1

[0035] In this embodiment, a ceramsite refractory material based on mud resource soil, including the following components and weight percentages: 50% mud ceramsite, 25% mud powder, Al 2 o 3 Micropowder 3%, aluminate cement 10%, water 11.5%, gypsum powder 0.2%, triethanolamine 0.25%, calcium lignosulfonate 0.05%.

[0036] Wherein, the mud ceramsite includes the following components and weight percentages: mud powder 80%, municipal sludge powder 10% and industrial sludge powder 10%.

[0037] The ceramsite refractory material in the present embodiment is prepared according to the following method:

[0038] 1) Put the mud powder, municipal sludge powder and industrial sludge powder in the mixing bin in proportion, and stir for 8 minutes to make it evenly mixed to obtain the mixture;

[0039] 2) Place the mixture in step 1) in a granulator, spray into atomized water, and then run the granulator for 40 minutes to obtain pellets with a particle size of 0.5-15 mm;

[0040] 3) Preheat...

Embodiment 2

[0043] In this embodiment, a ceramsite refractory material based on mud resource-resourced soil includes the following components and weight percentages: 50% mud ceramsite, 30% mud powder, 5% aluminate cement, 14% water, 0.5% gypsum powder, 0.5% triethanolamine.

[0044] Wherein, the mud ceramsite includes the following components and weight percentages: mud powder 80%, municipal sludge powder 10% and industrial sludge powder 10%.

[0045] The ceramsite refractory material in the present embodiment is prepared according to the following method:

[0046] 1) Put the mud powder, municipal sludge powder and industrial sludge powder in the mixing bin in proportion, and stir for 8 minutes to make them evenly mixed;

[0047] 2) Put the mixed material in step 1) into the granulator to granulate, and spray atomized water into the granulator when the granulator is started for 10 minutes, and then the granulator continues to run for 40 minutes to obtain a material with a particle size o...

Embodiment 3

[0051] In this embodiment, a kind of ceramsite refractory material based on mud resource-resourced soil includes the following components and weight percentages: 57.5% of mud ceramsite, 20% of mud powder, Al 2 o 3 Micropowder 2.5%, aluminate cement 7.5%, water 11.5%, gypsum powder 0.5%, triethanolamine 0.48%, calcium lignosulfonate 0.02%.

[0052] Wherein, the mud ceramsite includes the following components and weight percentages: mud powder 80%, municipal sludge powder 10% and industrial sludge powder 10%.

[0053] The ceramsite refractory material in the present embodiment is prepared according to the following method:

[0054] 1) Put the mud powder, municipal sludge powder and industrial sludge powder in the mixing bin in proportion, and stir for 8 minutes to make them evenly mixed;

[0055] 2) Put the mixed material in step 1) into the granulator to granulate, and spray atomized water into the granulator when the granulator is started for 10 minutes, and then the granula...

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Abstract

The invention relates to a ceramsite refractory material based on mud recycling soil and a preparation method thereof. The ceramsite refractory material comprises mud ceramsite, mud powder, Al2O3 micro-powder, aluminate cement, water, gypsum powder, triethanolamine and calcium lignosulphonate. The preparation method comprises the following steps: (1) mixing slurry powder, municipal sludge powder and industrial sludge powder to obtain a mixture; (2) granulating the mixture to obtain pellets; (3) preheating, roasting and cooling the pellets in sequence to obtain slurry ceramsite; and (4) mixingthe slurry ceramsite with slurry powder, Al2O3 micro powder, aluminate cement, water, gypsum powder, triethanolamine and calcium lignosulphonate to obtain the ceramsite refractory material. Compared with the prior art, the mud ceramsite with excellent fire resistance is obtained by recycling and harmlessly utilizing the engineering mud and optimizing the chemical components of the raw materials byusing the municipal sludge and the industrial sludge, and the problem that the mud cannot be effectively treated for a long time is solved.

Description

technical field [0001] The invention belongs to the technical field of mud resource utilization, and relates to a ceramsite refractory material based on mud resource soil and a preparation method thereof. Background technique [0002] Mud plays the role of wall protection, hole cleaning, slag removal and cooling in the construction process of cast-in-place pile drilling, underground diaphragm wall trenching and shield tunneling, and is widely used in construction, bridges and tunnels and other projects. my country produces about 80 million tons of waste mud every year, and the amount of mud is increasing year by year. The dewatered mud is mainly composed of 60-80% SiO 2 , 10-20% Al 2 o 3 and a small amount of Fe 2 o 3 , MgO, CaO, K 2 O, Na 2 O, TiO 2 and other chemical components. In some areas where supervision is neglected, some enterprises directly discharge mud into cultivated land or rivers, causing serious land or river pollution. At present, mud is mainly di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3217C04B2235/448
Inventor 肖建庄李志卫马志鸣
Owner TONGJI UNIV
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