Sintered building brick with high flyash mixing amount and its production process

A technology for fly ash and construction, which is applied in the field of preparation of building bricks by using fly ash and its preparation, which can solve the problems of complex procedures, low proportion of fly ash, long production cycle, etc., and achieves improved drying speed and production The effect of shortening the cycle time and high utilization rate

Inactive Publication Date: 2003-02-26
韦保行 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disclosed production method has the defect that the proportion of fly ash is relatively small; in the production process, due to the need for not less than 20 hours of trapped material process and the mixture still needs to carry out the secondary wheel rolling and mixing process, so There are defects of long production cycle and complicated process

Method used

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  • Sintered building brick with high flyash mixing amount and its production process
  • Sintered building brick with high flyash mixing amount and its production process
  • Sintered building brick with high flyash mixing amount and its production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The first step: get fly ash, sodium bentonite and the additive that is made up of 80% magnesium sulfide, 15% ferric oxide and 5% ferrous oxide by the weight ratio of 85,12,3, press figure 1 The process shown: first, transport the three to the mixer, mix and stir; the second step, transport the stirred soil material to the wheel mill for grinding, and grind it into a soil material smaller than 0.088mm; the third step The first step is to take 18 parts by weight of water and pour it into the soil material one after another, and then use the mixer for secondary mixing; the fourth step is to send the mixed mud into the brick making machine to make bricks; the fifth step is to make the bricks Put it on the drying car and send it into the drying hole with both ends open in turn, and move forward slowly. The adobe is controlled in about 8 hours from entering the hole to exiting the other hole. Its drying process is as figure 2 As shown, the waste heat released when the wheel...

Embodiment 2

[0036] Extract and mix according to the weight ratio of fly ash, sodium bentonite and additive 90:7:8, and then add 20 weight parts of water in the second stirring; other production processes are basically the same as in Example 1.

Embodiment 3

[0038] Extract and mix by weight of fly ash, sodium bentonite and additive 95:5:10, then add 22 parts by weight of water successively during the second stirring, and other production processes are basically the same as in Example 1.

[0039] In the drying process of Examples 2 and 3, the running time of the bricks in the drying tunnel is adjusted according to the difference in water content of the bricks and the difference in the amount of waste heat extracted. According to experiments, it can be controlled at about 10 and 13 hours respectively under the above conditions. The proportion of magnesium sulfide in the additives in these two embodiments is selected at 85%, and the content of ferric oxide and ferrous oxide is selected at about 7%.

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Abstract

A flyash brick consists of flyash 85-95 weight portions, sodium-base bentonite 5-15 weight portions and additive 3-10 weight portions. Its produced process includes mixing the said components by stirring and rolling, adding water in 18-22 weight portions before stirring for the second time, producing adobe, stoving adobe in drying channel with kiln afterheat, and baking in kiln. The flyash brick has high flyash content and simple production process, and the production has reduced air pollution and high production efficiency.

Description

Technical field: [0001] The invention belongs to the technical field of building bricks, and in particular relates to a method for preparing building bricks using fly ash. Background technique: [0002] Protecting the environment and protecting cultivated land is a basic national policy of the country. Therefore, the use of building bricks made of clay is being banned, and it is urgent to develop other materials to prepare building bricks. Application number is 00117486.X, publication number is CN1287105A, and application number is 0011004715, publication number is the patent application document of CN1260336A, disclose two kinds of production methods that take fly ash as main raw material to prepare building bricks respectively. However, in these two patent applications, although the utilization ratio of fly ash has reached 70-90% and 78-82% respectively, 18-22% and 30-10% of soil still need to be added in the production process. Therefore, when using this patented method ...

Claims

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Application Information

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IPC IPC(8): C04B18/08C04B33/00C04B33/13C04B33/30
CPCY02W30/91
Inventor 韦保行李国平
Owner 韦保行
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