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Process method for producing building gelling agent from industrial residues

A process method and technology of industrial waste slag, applied in the field of construction gelling agent, to reduce production costs, ensure quality, and improve early compression and flexural effects

Inactive Publication Date: 2012-08-22
徐雄文 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of adding industrial waste residues such as blast furnace slag and fly ash in cement production in the above-mentioned prior art, the present invention provides a construction gelling agent that can replace cement by using industrial waste residues, which does not need to consume fuel and Process method that does not emit carbon dioxide greenhouse gas

Method used

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  • Process method for producing building gelling agent from industrial residues
  • Process method for producing building gelling agent from industrial residues
  • Process method for producing building gelling agent from industrial residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The first step: dry, crush and screen the calcined bauxite waste residue, lime residue, and agglomerated sodium sulfate waste residue, and the particle size is required to be less than 5mm. Get 1kg of calcined bauxite waste residue, 1kg of waste residue containing anhydrous sodium sulfate, and 2kg of lime slag and mix them uniformly to prepare an active agent.

[0017] The second step: take 10.0kg of dry blast furnace slag, crush and screen to make slag,

[0018] The third step: Take 0.2kg of the active agent made in the first step, 0.2kg of dry gypsum, 0.5kg of cement clinker, and 4.1kg of the slag made in the second step and add it to the test ball mill for grinding, so that the specific surface area reaches 420~500 ㎡ / Kg and fully homogenize the 32.5 grade building gelling agent.

[0019] Extract the gelling agent experimental test that present embodiment 1 produces: measure its every performance index by every physical performance standard of 32.5 grade slag Portlan...

Embodiment 2

[0025] Step 1: Dry, crush and screen alumina waste slag, lime slag, and agglomerated potassium sulfate, and the particle size is required to be less than 5mm. Get 2kg of alumina waste residue, 2kg of waste residue containing anhydrous potassium sulfate, and 4kg of lime slag and mix them uniformly to prepare an active agent.

[0026] Step 2: Take 8.5kg of dry blast furnace slag and 1.5kg of fly ash, crush and sieve them and mix them to make slag.

[0027] The third step: Take 0.2kg of the active agent made in the first step, 0.2kg of dry gypsum, 1.5kg of cement clinker, and 3.1kg of the slag made in the second step and put it into the test ball mill for grinding, so that the specific surface area reaches 420~500 ㎡ / Kg and fully homogenize the 42.5 grade building gelling agent.

[0028] Extract the gelling agent experimental test that present embodiment 2 produces: measure its every performance index by every physical performance standard of 42.5 grade slag Portland cement:

[...

Embodiment 3

[0034] Step 1: Dry, crush and screen calcined bauxite waste slag, lime slag, and agglomerated potassium sulfate, and the particle size is required to be less than 5mm. Get calcined bauxite waste slag 3kg, waste slag containing anhydrous potassium sulfate 1kg, lime slag 6kg and mix uniformly, be mixed with active agent,

[0035] Step 2: Take 9.0kg of dry blast furnace slag and 1.0kg of fly ash, crush and sieve them and mix them to make slag.

[0036] The third step: Take 0.2kg of active agent made in the first step, 0.2kg of dry gypsum, 1.0kg of cement clinker, and 3.6kg of slag made in the second step, and put it into the test ball mill for grinding, so that the specific surface area reaches 420~500 ㎡ / Kg and fully homogenize the 42.5 grade building gelling agent.

[0037] Extract the gelling agent experimental test that present embodiment 3 produces: measure its every performance index by every physical performance standard of 42.5 grade slag Portland cement:

[0038] Take 3...

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Abstract

The invention discloses a process method for producing a building gelling agent from industrial residues. The gelling agent consists of an activating agent, gypsum, cement clinker and cinder, wherein the activating agent consists of alumina-containing residues, lime sludge and alkali metal sulphate residues. The process method comprises the following steps of: drying 1-50 percent by weight of alumina-containing residues, 1-50 percent by weight of alkali metal sulphate residues and 2-90 percent by weight of lime sludge, smashing and sieving till the particle size is smaller than 5 millimeters;mixing to obtain the activating agent; smashing blast furnace grain slag and pulverized fuel ash in the weight ratio (80-100):(0-20), sieving and mixing to obtain cinder; and adding the activating agent, gypsum, cement clinker and the cinder into a ball mill in the weight ratio 4:4:(8-30):(84-62) for milling till the surface area is 420-500 m<2> / g. According to the process method, industrial residues are fully utilized, the quality of the gelling agent can be ensured, the production cost of the gelling agent for buildings is lowered, fuel consumption is eliminated, energy resources are saved,and environmental pollution is avoided.

Description

technical field [0001] The invention relates to building materials, in particular to a process for producing a building gelling agent that can replace cement by using industrial waste residue Background technique [0002] In 1824, the British Aspdin (Joseph Aspdin) fired limestone and clay to make cement. For nearly two hundred years, limestone and coal have been used in cement production, using two grinding and one firing processes. This consumes a lot of energy and emits a lot of greenhouse gas. The gas carbon dioxide seriously damages the environment. At present, in the production of cement, some ironmaking blast furnace slag and fly ash are also added, but the addition ratio is very small. If you want to increase the amount of blast furnace slag or fly ash, you must directly add NaOH, organic amines, calcium chloride, salt and other substances, which will not only increase the cost, but also bring in organic matter and corrosive chloride ions that are not conducive to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/21
CPCC04B7/21Y02P40/10
Inventor 徐雄文邬思德欧阳波陈永明
Owner 徐雄文
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