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Riverway sludge self-heat preserving sintering porous brick and production method thereof

A technology of river silt and porous bricks, which is applied to other household appliances, applications, household appliances, etc., can solve the problems such as the inability to meet the requirements of light-weight energy-saving heat insulation, the low content of sludge in the river, and the inability to achieve silt. The effect of river cleaning, good self-insulation performance and protection of cultivated land

Active Publication Date: 2012-10-31
上海鑫晶山淤泥研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Judging from these patent achievements, there are still some problems at present. One is that the river sludge content in the brick raw materials is relatively low, and 100% clay can not be replaced by silt; Lightweight, energy-saving, thermal insulation requirements for wall materials cannot meet the standard requirement of 50% energy saving

Method used

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  • Riverway sludge self-heat preserving sintering porous brick and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The river silt sintered porous brick is made by mixing river silt, river silt dry powder, cinder, and micropore forming agent, making blanks, drying and firing. 50%: 29%: 20%: 1%. preparation process such as figure 1 As shown, the aged and dried river silt, coal slag, and sawdust are mixed, an appropriate amount of water is added, and the adobe is fully stirred, rolled, and vacuum-extruded. The through holes of the adjacent columns are staggered with each other, the hole width is about 15mm, and the hole wall thickness is 15mm. After high temperature sintering at 950 ℃, 90×115×240mm self-insulating sintered bricks are made, and the thermal conductivity is 0.28W / (m·K), and the heat transfer coefficient of a 240mm wall made of self-insulating bricks is 1.34W / (m 2 ·K).

Embodiment 2

[0027] The river silt sintered porous brick is made by mixing river silt, river silt dry powder, cinder, and micropore forming agent, making blanks, drying and firing. 50%: 28%: 20%: 2%. Mix the aged and dried river silt, coal slag and microporous forming agent, add an appropriate amount of water, fully stir, roll, and vacuum extrude the bricks. The through holes of the adjacent columns are staggered with each other, the hole width is about 22mm, and the hole wall thickness is 15mm. After high temperature sintering at 1000°C, 90×115×240mm self-insulating sintered bricks are made, and the thermal conductivity is 0.24W / (m·K). 2 ·K).

Embodiment example 3

[0029] The river silt sintered porous brick is made by mixing river silt, river silt dry powder, cinder, and micropore forming agent, making blanks, drying and firing. %:29%:22%:4%. Mix the aged and dried river silt, coal slag and microporous forming agent, add an appropriate amount of water, fully stir, roll, and vacuum extrude the bricks. The through holes in the adjacent columns are staggered with each other, the hole width is about 20mm, and the hole wall thickness is 12mm. After high temperature sintering at 1050°C, 90×115×240mm self-insulating sintered bricks are made, and the thermal conductivity is 0.20W / (m·K). 2 ·K).

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Abstract

The invention relates to a heat-insulating wall body material for a building, and discloses a riverway sludge self heat-insulating sintered porous brick and preparation thereof. The riverway sludge self heat-insulating sintered porous brick comprises the following raw materials in percentage by mass: 30 to 50 percent of riverway sludge, 20 to 40 percent of riverway sludge dry powder, 20 to 30 percent of cinder and 1 to 8 percent of microporous forming materials. The riverway sludge self heat-insulating sintered porous brick has superior self heat-insulating property, and can realize building energy conservation by more than 50 percent in the aspect of enclosure of a common building structure.

Description

technical field [0001] The invention relates to a thermal insulation wall material for buildings, in particular to a self-insulating sintered porous brick produced by utilizing river silt and a preparation method thereof. Background technique [0002] River silt is one of the important types of municipal solid waste. Due to the direct discharge of sewage over the years, a large amount of inorganic and organic substances have accumulated in the river mud in urban rivers, which have become secondary pollution sources through diffusion and exchange with the overlying water bodies. The dredging of river channels with dense water networks such as water canals, rivers and lakes in my country will generate a large amount of silt, and with the planning and upgrading of Shanghai's river channels, more river silt will be generated. How to effectively, adapt to local conditions, and recycle river silt is of great significance to avoid secondary pollution, recycle resources, and sugges...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B33/132
CPCC04B2111/28C04B38/0054
Inventor 陈文光
Owner 上海鑫晶山淤泥研发有限公司
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