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Manufacturing technique of high-adding-quantity fly ash sintered hollow brick

A production process and a technology for fly ash, applied in the field of hollow bricks, can solve the problems of cumbersome, difficult, and difficult to mass-produce the binder blending process, and achieve the effects of shortening the roasting time, being easy to operate, and shortening the drying cycle.

Inactive Publication Date: 2018-07-17
HEXIAN MINGSHENG ENVIRONMENTAL PROTECTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because fly ash is a kind of thinning agent and has no plasticity, and the blending process of the binder is cumbersome, although the sintered fly ash brick with a blending amount of more than 50% has been successfully developed, it is difficult to carry out large-scale production.
As for the large-scale production of sintered fly ash hollow bricks, it is even more difficult

Method used

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  • Manufacturing technique of high-adding-quantity fly ash sintered hollow brick

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A production process for high-volume fly ash sintered hollow bricks, comprising the following steps:

[0024] (1) Sieve fly ash, kaolin powder, high-viscosity attapulgite clay powder, nepheline syenite powder, and mica powder with a 180-mesh sieve, crush and process the sieve residue, and then sieve with a 180-mesh sieve ; Then the second sieve residue is pulverized, and the slag is removed after using a 180 mesh sieve;

[0025] (2) Weigh 55 parts of fly ash, 18 parts of kaolin powder, 15 parts of high-viscosity attapulgite clay powder, 8 parts of nepheline syenite powder, and 3 parts of mica powder sieved through step (1), and add them to the mixer In the process, after stirring for 25 minutes, add 11 parts of river mud and 16 parts of water, and continue mixing for 30 minutes to obtain a mixture; send the mixture into the aging warehouse for aging for 28 hours;

[0026] The above-mentioned river mud is river bottom mud in rivers with less pollution and less garbage, ...

Embodiment 2

[0032] A production process for high-volume fly ash sintered hollow bricks, comprising the following steps:

[0033] (1) Sieve fly ash, kaolin powder, high-viscosity attapulgite clay powder, nepheline syenite powder, and mica powder with a 180-mesh sieve, crush and process the sieve residue, and then sieve with a 180-mesh sieve ;

[0034] (2) Weigh 57 parts of fly ash, 20 parts of kaolin powder, 14 parts of high-viscosity attapulgite clay powder, 7 parts of nepheline syenite powder, and 3 parts of mica powder sieved through step (1), and add them to the mixer In the process, after stirring for 30 minutes, add 10 parts of river mud and 18 parts of water, and continue mixing for 30 minutes to obtain a mixture; send the mixture into the aging warehouse for aging for 30 hours;

[0035] The above-mentioned river mud is the river bottom mud in rivers with less pollution and less garbage, and the water content of the river mud is 22%;

[0036] (3) Send the aged mixture into the box...

Embodiment 3

[0041] A production process for high-volume fly ash sintered hollow bricks, comprising the following steps:

[0042] (1) Sieve fly ash, kaolin powder, high-viscosity attapulgite clay powder, nepheline syenite powder, and mica powder with a 150-mesh sieve, crush and process the remaining material, and then sieve with a 150-mesh sieve ;

[0043] (2) Weigh 52 parts of fly ash, 12 parts of kaolin powder, 16 parts of high-viscosity attapulgite clay powder, 5 parts of nepheline syenite powder, and 5 parts of mica powder sieved through step (1), and add them to the mixer In the process, after stirring for 25 minutes, add 8 parts of river mud and 14 parts of water, and continue mixing for 35 minutes to obtain a mixture; send the mixture into the aging warehouse for aging for 26 hours;

[0044] The above-mentioned river mud is the river bottom mud in rivers with less pollution and less garbage, and the water content of the river mud is 28%;

[0045](3) Send the aged mixture into the ...

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Abstract

The invention provides a manufacturing technique of a high-adding-quantity fly ash sintered hollow brick. The manufacturing technique comprises the steps of 1, using a 150-180 mesh sieve to conduct sieving; 2, weighing 52-57 parts of fly ash, 12-20 parts of kaolin powder, 13-16 parts of high-viscosity attapulgite clay powder, 5-9 parts of nepheline syenite powder and 2-5 parts of mica powder whichare obtained through sieving, adding weighed substances into a stirrer, adding 8-13 parts of canal mud and 14-18 parts of water after stirring, continuing to conduct mixing to obtain a mixture, and conducting aging; 3, conveying the aged mixture into a double-shaft stirrer to be stirred and kneaded, and conveying the mixture to a twin-stage vacuum brick extruder to be shaped; 4, conducting drying; 5, firing hollow dry brick bodies in a furnace; 6, conducting natural cooling.

Description

technical field [0001] The invention relates to the technical field of hollow bricks, in particular to a production process of high-volume fly ash sintered hollow bricks. Background technique [0002] my country has used fly ash to produce sintered solid bricks for half a century, but most of them are blended into clay as "internal fuel", and the general blending amount is 20% to 30%. Because fly ash is a kind of thinning agent and has no plasticity, and the blending process of the binder is cumbersome, although the sintered fly ash brick with a blending amount of more than 50% has been successfully developed, it is difficult to carry out large-scale production. . As for the large-scale production of sintered fly ash hollow bricks, it is even more difficult. The reason is that it is affected by technical factors such as mixing, aging, processing, molding, drying, and roasting of various raw materials. With the full implementation of the national "wall reform" policy and t...

Claims

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Application Information

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IPC IPC(8): C04B33/135C04B33/132C04B33/32C04B38/00
CPCC04B33/1321C04B33/1352C04B33/32C04B35/62625C04B38/00C04B2235/3201C04B2235/3463C04B2235/3472C04B2235/6562C04B2235/6567C04B2235/96C04B2235/9607C04B38/0074Y02P40/60
Inventor 严艾青黄奋举
Owner HEXIAN MINGSHENG ENVIRONMENTAL PROTECTION MATERIAL
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