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 fai

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

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

[0026] 1) Material preparation:

[0027] a. Grind shale and industrial waste slag into fine powder with a particle size of 2-5mm with a mill;

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

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

[0030] 2) Mixing:

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

[0032] 3) Forming:

[0033] Use a vacuum extruder with a pressure of 3MPa to make bricks from the mixed materials;

[0034] 4) Sintering:

[0035] First, the above-mentioned bricks are dried in the drying room, and then enter the tunnel kiln to be sintered at 950-1050°C into finished products.

Example Embodiment

[0036] Example 2

[0037] Raw material: siliceous shale, produced in Sichuan; crop stalks are a mixture of corn stalks, wheat stalks, sorghum stalks, cotton stalks and cotton husks; industrial waste residues are a mixture of slag, coal cinder and industrial sludge.

[0038] 1) Material preparation:

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

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

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

[0042] The straw is fed into 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 per ton of straw is added to the outlet of the tearing machine to...

Example Embodiment

[0052] Example 3

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

[0054] 1) Material preparation:

[0055] a. Grind siliceous shale and industrial waste slag into fine powder with a particle size of 2-5mm with a mill;

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

[0057] c. Use the straw mechanical cleaning pulping process disclosed in the invention patent with application number 200910229530.2 to make straw mechanical pulp with a fiber diameter-to-length ratio of 1:5-15, specifically as follows:

[0058] The straw is fed into 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 per ton of straw is added to the outlet of the tearing machine to fully moisten it, and it is stacked f...

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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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