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Shale-straw-sintering heat-insulation light brick and preparation method thereof

A light-weight brick and straw technology, which is applied in the field of heat-insulation and sound-insulation light-weight brick and its preparation, can solve the problems of energy saving, heat preservation and sound insulation effects, and insufficient viscosity, and achieve the effects of low density, good viscosity, and energy saving

Inactive Publication Date: 2011-07-20
北京创源基业自动化控制技术研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the added amount of plant fiber is only 3-6%, and the viscosity of the main material used is not enough, it is still necessary to use clay as high as 30-50% by weight, which fails to solve the national ban on using clay to make bricks
Because the amount of added organic matter is too small, its energy saving, heat preservation and sound insulation effects are not great

Method used

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  • Shale-straw-sintering heat-insulation light brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Raw material: iron shale, produced in Sichuan; crop straw is corn stalk; industrial waste is cinder.

[0026] 1) Preparation of materials:

[0027] a. Use a mill to grind shale and industrial waste residue into fine powder with a particle size of 2-5mm;

[0028] b. Use a pulverizer to crush the crop stalks into straw powder with a particle size of 5-10mm;

[0029] c. Using a pulping machine to make straw mechanical pulp with length-to-diameter ratio of 1:5-15.

[0030] 2) Mixing:

[0031] Add 40kg of the above-mentioned shale powder; 12.0kg of crop straw powder, 6.0kg of straw mechanical pulp; 20kg of industrial waste powder into the mixer and mix evenly.

[0032] 3) Molding:

[0033] The mixed material is made into adobe with a vacuum extruder with a pressure of 3MPa;

[0034] 4) Sintering:

[0035] The above-mentioned adobes are first put into the drying chamber for drying, and then into the tunnel kiln for sintering at 950-1050°C to form finished products.

Embodiment 2

[0037] Raw material: siliceous shale, produced in Sichuan; crop straw is a mixture of corn stalk, wheat straw, sorghum stalk, cotton stalk and cotton husk; industrial waste is a mixture of slag, coal cinder and industrial sludge.

[0038] 1) Preparation of materials:

[0039] a. Use a mill to grind oil shale and industrial waste residue into fine powder with a particle size of 2-5mm;

[0040] b. Use a pulverizer to crush the crop stalks into straw powder with a particle size of 5-10 mm;

[0041] c. Using the straw mechanical method cleaning pulping process disclosed in the invention patent with application number 200910229530.2, the crop straw is made into a straw mechanical pulp with a fiber diameter-to-length ratio of 1:5-15, as follows:

[0042] The straw is sent to the tearing machine with a conveyor belt, and the straw is cut into 3-5cm long filaments by the tearing machine, and 800 kg of water is added to each ton of straw through the outlet of the tearing machine to fu...

Embodiment 3

[0053] Raw materials: siliceous shale, produced in Sichuan; crop straw is a mixture of corn stalk, wheat straw, sorghum stalk, and rape stalk; industrial waste is a mixture of cinder and industrial sludge.

[0054] 1) Preparation of materials:

[0055] a. use a mill to grind the siliceous shale and industrial waste residue into fine powder with a particle size of 2-5mm;

[0056] b. Use a pulverizer to crush the crop stalks into straw powder with a particle size of 5-10 mm;

[0057] c. Using the straw mechanical method cleaning pulping process disclosed in the invention patent with application number 200910229530.2, the crop straw is made into a straw mechanical pulp with a fiber diameter-to-length ratio of 1:5-15, as follows:

[0058] The straw is sent to the tearing machine with a conveyor belt, and the straw is cut into 3-5cm long filaments by the tearing machine, and 800 kg of water is added to each ton of straw through the outlet of the tearing machine to fully wet it, an...

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Abstract

The invention provides a shale-straw-sintering heat-insulation light brick which is prepared from the following raw materials in parts by mass: of 40-70 parts of shale, 18-30 parts of crop straws and 20-40 parts of industrial solid wastes. The invention also provides a sintering preparation method of the light brick. The brick with small density, high strength and capability of heat insulation and sound and thermal isolation is obtained, and remarkable energy saving effect is achieved.

Description

technical field [0001] The invention relates to the field of building materials, in particular to heat-preserving, sound-insulating and light-weight bricks prepared from shale, crop stalks and industrial waste residues as raw materials and a preparation method thereof. Background technique [0002] Brick is an indispensable building material in the construction industry. No matter the outer wall or the inner wall of frame structure or steel frame structure, bricks are mostly used as masonry structures. In the past, bricks were made by pressing clay into blocks and then sintering at high temperature. Since the reform and opening up, my country's construction industry has developed rapidly, and the demand for bricks has increased dramatically. The traditional method of making bricks not only wastes a lot of land, but also wastes energy and causes environmental pollution. The state has banned the use of clay to make bricks. So people are constantly looking for new brick-makin...

Claims

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Application Information

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IPC IPC(8): C04B38/06
Inventor 杨明秋苏河山王锡臣余富均黄珍权
Owner 北京创源基业自动化控制技术研究所
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