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A kind of machine-pressed non-burning clay brick and preparation method thereof

A technology of burning clay and hard clay, which is applied in the field of shaped refractory materials, can solve problems such as high energy consumption and high pollution, and achieve the effects of low energy consumption, simple production process, and cost-saving production

Active Publication Date: 2022-07-19
PUYANG REFRACTORIES GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to provide a machine-pressed unfired clay brick and its preparation method. The prepared machine-pressed unfired clay brick has high compressive strength after being dried at 120°C and does not require high-temperature firing. It has good volume stability when used at high temperature, and solves the problems of high energy consumption and high pollution caused by traditional clay bricks that must be fired.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of machine-pressed non-burning clay brick, comprising the following steps:

[0041]① Prepare raw materials: 25kg of hard clay particles with particle size less than or equal to 5mm and greater than 3mm, 20kg of hard clay particles with particle size less than or equal to 3mm and greater than 0.088mm, and hard clay particles with particle size less than or equal to 0.088mm Clay fine powder is 25 kg, soft clay fine powder with particle size less than or equal to 0.088mm is 10 kg, quartz sand with particle size less than or equal to 2 mm and greater than or equal to 1 mm is 3 kg, particle size is less than or equal to 3 mm and greater than or equal to 3 kg 1mm of pyrophyllite is 7kg, dispersant is 0.1kg, the number of particles with particle size less than 20μm accounts for 90% of the total number of particles (D90=20μm), 10kg of solid binder and 3.8kg of liquid binder.

[0042] ②Mix the hard clay fine powder with particle size less than or equal to 0....

Embodiment 2

[0055] A preparation method of machine-pressed non-burning clay brick, comprising the following steps:

[0056] ① Prepare raw materials: 25kg of hard clay particles with particle size less than or equal to 5mm and greater than 3mm, 15kg of hard clay particles with particle size less than or equal to 3mm and greater than 0.088mm, and hard clay particles with particle size less than or equal to 0.088mm Clay fine powder is 25 kg, soft clay fine powder with particle size less than or equal to 0.088mm is 15 kg, quartz sand with particle size less than or equal to 2 mm and greater than or equal to 1 mm is 5 kg, particle size is less than or equal to 3 mm and greater than or equal to 5 kg 1mm of pyrophyllite is 7kg, dispersant is 0.1kg, particles with particle size less than 20μm account for 90% of the total number of particles, 8kg of solid binder and 4.0kg of liquid binder.

[0057] ②Mix the hard clay fine powder with particle size less than or equal to 0.088mm, soft clay fine powd...

Embodiment 3

[0070] A preparation method of machine-pressed non-burning clay brick, comprising the following steps:

[0071] ① Prepare raw materials: 25kg of hard clay particles with particle size less than or equal to 5mm and greater than 3mm, 20kg of hard clay particles with particle size less than or equal to 3mm and greater than 0.088mm, and hard clay particles with particle size less than or equal to 0.088mm Clay fine powder is 10kg, soft clay fine powder with particle size less than or equal to 0.088mm is 20kg, quartz sand with particle size less than or equal to 2mm and greater than or equal to 1mm is 5kg, particle size is less than or equal to 3mm and greater than or equal to 1mm of pyrophyllite is 5kg, dispersant is 0.2kg, particles with particle size less than 20μm account for 90% of the total number of particles, 15kg of solid binder and 3.6kg of liquid binder.

[0072] ②Mix the hard clay fine powder with particle size less than or equal to 0.088mm, soft clay fine powder with pa...

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Abstract

The invention discloses a machine-pressed non-burning clay brick and a preparation method thereof, comprising the following components: hard clay, soft clay, quartz sand, pyrophyllite, dispersant, solid binder and liquid binder; Non-fired clay bricks can reach the normal temperature strength of fired clay bricks by drying at 120°C, without high temperature firing, low energy consumption, simple production process, high medium temperature strength, and small volume change at high temperature, which not only saves production The cost also reduces problems such as waste gas pollution caused by firing, omits the firing process of traditional clay bricks, and realizes energy saving and emission reduction of refractory clay bricks.

Description

technical field [0001] The invention relates to the technical field of shaped refractory materials. Specifically, it is a machine-pressed non-burning clay brick and a preparation method thereof. Background technique [0002] Clay bricks are aluminosilicate refractory products produced by high-temperature sintering as the main raw materials of hard clay and soft clay. In the production process, there are not only high energy consumption, many kiln supporting facilities, and large dust and waste gas pollution. and other problems, and because of the secondary mullite reaction during the sintering process, the product size is difficult to control, resulting in unstable product quality. Although the use of phosphoric acid or aluminum phosphate as a binder to produce high-alumina bricks in a non-burning way effectively solves the above problems, the products using phosphoric acid or phosphate as binders still need to be heat-treated at 600 °C, otherwise the products will be store...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B12/00
Inventor 王京京王成杨利朋潘磊张亚彬王允李永力孙荣海闫光辉陈勇朱厚亮王朋飞
Owner PUYANG REFRACTORIES GRP CO LTD
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