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A kind of silt-free sintering brick manufacturing process

A production process and sinter-free technology, which is applied in the field of building bricks, can solve problems such as insufficient performance and cost waste, and achieve the effects of avoiding performance conflicts, avoiding interactions, and improving utilization

Active Publication Date: 2018-06-08
苏州望意阳环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since quicklime is added to accelerate the aging of sludge, the additive and quicklime are added to the sludge at the same time, so that the due effect of the additive cannot be fully exerted under the action of quicklime aging, resulting in a waste of cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1, preparing and extracting sludge, removing garbage, adjusting the particle size of the sludge, and then adjusting the moisture content, so that the moisture content of the adjusted sludge is 60%;

[0022] Step 2, adding quicklime to the sludge obtained after the treatment in step 1, the quicklime and sludge are added in a ratio of 1:10 by mass, fully stirred, and then left to stand for 2 days;

[0023] Step 3: Add additives, stones, sand, and cement to the silt after standing, wherein the additives are calcium chloride 38%, sodium chloride 16%, magnesium chloride 3%, potassium chloride 2%, ferrous iron 4% by mass fraction % aqueous solution proportioning is made, and silt, additive, stone, sand, cement are counted as silt 65,2%, additive 0.8%, stone 12%, sand 10%, cement 12% and fully stir by mass fraction, obtain mixed materials;

[0024] Step 4: Extrude the mixed materials to make adobes, and then dry them for 18 hours to form silt-free bricks.

[0025] The n...

Embodiment 2

[0027] Step 1, preparing and extracting sludge, removing garbage, adjusting the particle size of the sludge, and then adjusting the moisture content, so that the moisture content of the adjusted sludge is 65%;

[0028] Step 2, adding quicklime to the sludge obtained after the treatment in step 1, the quicklime and the sludge are added in a ratio of 1:8 by mass, fully stirred, and then left to stand for 5 days;

[0029] Step 3: Add additives, stones, sand, and cement to the silt after standing, wherein the additives are calcium chloride 38%, sodium chloride 16%, magnesium chloride 3%, potassium chloride 2%, ferrous iron 4% by mass fraction % aqueous solution ratio is made, and the silt, additives, stones, sand, and cement are calculated as 70% of silt, 0.5% of additives, 9% of stones, 10.5% of sand, and 10% of cement by mass fraction and fully stirred to obtain a mixed material ;

[0030] Step 4: Extrude the mixed materials to make adobes, and then dry them for 20 hours to for...

Embodiment 3

[0032] Step 1, preparing and extracting sludge, removing garbage, adjusting the particle size of the sludge, and then adjusting the moisture content, so that the moisture content of the adjusted sludge is 70%;

[0033] Step 2, adding quicklime to the sludge obtained after the treatment in step 1, the quicklime and sludge are added in a mass ratio of 1:6.5, fully stirred, and then left to stand for 7 days;

[0034] Step 3: Add additives, stones, sand, and cement to the silt after standing, wherein the additives are calcium chloride 38%, sodium chloride 16%, magnesium chloride 3%, potassium chloride 2%, ferrous iron 4% by mass fraction % aqueous solution ratio is made, and silt, additives, stones, sand, and cement are calculated as 75% of silt, 0.5% of additives, 8.5% of stones, 8% of sand, and 8% of cement by mass fraction and fully stirred to obtain a mixed material ;

[0035] Step 4: Extrude the mixed materials to make adobes, and then dry them for 24 hours to form silt-free...

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Abstract

The invention belongs to the technical field of building bricks, and in particular relates to a process for preparing non-fired bricks from river and lake silt. In the present invention, the quicklime and the additives are added in two steps respectively, the quicklime is first put into the sludge, the quicklime and water form calcium hydroxide, and the calcium hydroxide absorbs carbon dioxide to form hard calcium carbonate, and the formed calcium carbonate will also partly Silt covered it. In this process, the silt is forming recycled soil, which avoids the interaction between quicklime and additive components, and also avoids the performance conflict between quicklime and additives. The additive is to reduce the amount of cement used and enhance the pressure resistance of unburned bricks. Therefore, the additive is added after the quicklime is completely converted into calcium carbonate, which improves the utilization rate of the additive and saves the cost of additives and cement.

Description

technical field [0001] The invention belongs to the technical field of building bricks, and in particular relates to a process for preparing non-fired bricks from river and lake silt. Background technique [0002] Bricks are man-made small blocks used in construction, mostly rectangular hexahedron in shape, and also have various shapes. According to the production process, it is divided into fired bricks (mainly clay bricks) and non-fired bricks. All the bricks used for masonry load-bearing and non-load-bearing walls made of clay, shale, coal gangue or fly ash after molding and high-temperature roasting are collectively called sintered bricks. Using fly ash, coal slag, coal gangue, tailings slag, chemical slag or natural sand, sea mud, etc. (one or more of the above raw materials) as the main raw material, using cement as the coagulant, without high-temperature calcination. A new type of wall material is called cement brick, that is, non-fired brick. [0003] Silt is depo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/04B28B3/20
CPCY02W30/91
Inventor 赵俊
Owner 苏州望意阳环保科技有限公司
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