Spherical hole insulating brick and preparation method thereof

An insulating brick and spherical technology, applied in the field of spherical hole insulating brick and its preparation, can solve the problems of high strength and insulating performance, poor performance of insulating brick, low density of insulating brick, etc., and achieve high compressive strength and flexural strength, Good thermal insulation performance, good insulation effect

Inactive Publication Date: 2020-11-13
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a spherical hole heat insulating brick and a preparation method thereof. The preparation method flow is simple and easy to operate, the raw material price is low, and the production cost is low. The obtained heat insulating brick has a lower density and is relatively High strength and thermal insulation performance effectively solve the problems of high cost, high environmental pollution and poor performance of thermal insulation bricks in the prior art

Method used

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  • Spherical hole insulating brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A spherical hole insulation brick, comprising the following raw materials in mass percentage: 17% of river sludge, 12% of river bank sludge, 5% of papermaking waste, 8% of ceramsite, 10% of vitrified microbeads, 5% of calcium carbonate, sepiolite 3%, calcium sulfate 7%, straw 9%, lime 4%, carbon black 3%, sodium citrate 5%, malic acid 5%, water repellent 3% and flame retardant 4%.

[0025] Wherein, the stalk is corn stalk. Papermaking waste is waste cloth and wood. The water repellent is FN-80; the flame retardant is aluminum hydroxy.

[0026] The preparation method of the above-mentioned spherical hole insulation brick is characterized in that it comprises the following steps:

[0027] (1) Pulverize and grind river sludge and river bank sludge, bake at 600°C for 14 hours, and then pulverize papermaking waste, ceramsite, vitrified beads, calcium carbonate, sepiolite, straw, lime and carbon black to 0.09mm, mixed to obtain the first mixture;

[0028] (2) Sodium citra...

Embodiment 2

[0032] A spherical hole insulation brick, including the following raw materials in mass percentage: 20% of river sludge, 10% of river bank sludge, 4% of papermaking waste, 7% of ceramsite, 4% of vitrified microbeads, 5% of calcium carbonate, sepiolite 3%, calcium sulfate 5%, straw 12%, lime 5%, carbon black 5%, sodium citrate 6%, malic acid 4%, water repellent 2% and flame retardant 8%.

[0033] Wherein, the straw is rice straw. Papermaking waste is waste cloth, wood blocks and woven bags. The hydrophobic agent is SHP-50; the flame retardant is tris(dibromopropyl) phosphate.

[0034] The preparation method of the above-mentioned spherical hole insulation brick is characterized in that it comprises the following steps:

[0035] (1) Pulverize and grind river sludge and river bank sludge, bake at 600°C for 13 hours, and then pulverize papermaking waste, ceramsite, vitrified beads, calcium carbonate, sepiolite, straw, lime and carbon black to 0.12mm, mixed to obtain the first m...

Embodiment 3

[0040] A spherical hole insulation brick, comprising the following raw materials in mass percentage: 19% of river sludge, 10% of river bank sludge, 4% of papermaking waste, 8% of ceramsite, 5% of vitrified microbeads, 4% of calcium carbonate, sepiolite 3%, calcium sulfate 3%, straw 15%, lime 5%, carbon black 4%, sodium citrate 6%, malic acid 5%, water repellent 5% and flame retardant 5%.

[0041] Wherein, the straw is a mixture of corn straw and rice straw at a mass ratio of 1:2.5. Papermaking waste is waste cloth and wood. The water repellent is FN-80; the flame retardant is aluminum hydroxy.

[0042] The preparation method of the above-mentioned spherical hole insulation brick is characterized in that it comprises the following steps:

[0043] (1) Pulverize and grind river sludge and river bank sludge, bake at 600°C for 13.5 hours, and then mix papermaking waste, ceramsite, vitrified beads, calcium carbonate, sepiolite, straw, lime and carbon black Crushed to 0.2mm, mixed t...

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Abstract

The invention discloses a spherical hole insulating brick and a preparation method thereof. The spherical hole insulating brick comprises the following raw materials in percentage by mass: 10-25% of riverway sludge, 5-12% of river bank sludge, 3-7% of papermaking waste, 5-11% of ceramsite, 2-12% of glass beads, 2-6% of calcium carbonate, 3-6% of sepiolite, 2-7% of calcium sulfate, 5-20% of straw,2-7% of lime, 2.5-10% of carbon black, 2-8% of sodium citrate, 1-10% of malic acid, 1-5% of a water repellent and 1-12% of a flame retardant. The invention further discloses a preparation method of the spherical hole insulating brick. The preparation method is simple in process, easy to operate, low in raw material price and low in production cost, the obtained insulating brick has low density andhigh strength and insulating performance, and the problems that in the prior art, cost is high, environmental pollution is large, and the insulating brick is poor in performance are effectively solved.

Description

technical field [0001] The invention relates to the technical field of thermal insulation refractory materials, in particular to a thermal insulation brick with spherical holes and a preparation method thereof. Background technique [0002] In industrial production and daily life of residents, a large amount of sludge generated all the time has brought serious pollution to the environment. increasingly become the focus of attention. If incineration is used, it will not only pollute the atmosphere, but also consume a lot of energy; if it is landfilled, it will cause pollution to groundwater resources and many other problems. Therefore, how to deal with sludge has become an urgent environmental protection problem in our country. Grass straw is a kind of agricultural production waste. Whenever crops are harvested, farmers often discard and pile up the straw, which not only occupies the land, but also releases a large amount of smoke and carbon dioxide and other greenhouse gas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/08C04B38/06C04B33/132B28B11/24B28B3/20B28B3/00
CPCB28B3/006B28B3/20B28B11/24C04B33/132C04B33/1321C04B38/0675C04B38/08C04B2235/3208C04B2235/349C04B2235/424C04B2235/442Y02P40/60
Inventor 林彬朱龙罗天勇霍本昊
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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