Method for preparing composite steel slag carbonized bricks

A composite steel slag and steel slag technology, applied in ceramic products, applications, household appliances, etc., can solve problems such as poor strength and stability, and achieve the effects of rich porosity, improved ball milling efficiency, and sufficient hydration reaction.

Inactive Publication Date: 2018-04-06
CHANGZHOU OPTICAL MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: Aiming at the problems of poor strength and stability of traditional steel slag carbonized bricks, a preparation method of composite steel slag carbonized bricks is provided

Method used

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  • Method for preparing composite steel slag carbonized bricks

Examples

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example 1

[0022] In parts by weight, take 10 parts of carbomer, 12 parts of polyallylamine, and 150 parts of water successively, pour them into a beaker, stir and mix them with a glass rod for 20 minutes, then let them stand at room temperature for 10 hours, and then move the beaker into several Display speed and constant temperature magnetic stirrer, at a temperature of 65°C and a speed of 600r / min, stir and dissolve at a constant temperature for 30min, after cooling down to 35°C naturally, at a speed of 800r / min, pour it into the beaker at a rate of 80mL / min Pass into carbon dioxide gas, continue to pass into 5h, discharge, obtain dispersion liquid; In the ball mill tank, add 100 parts of steel slag, 20 parts of kerosene, 8 parts of grinding aid successively in parts by weight, and according to the mass ratio of ball to material: Add zirconia ball milling beads at a ratio of 30:1, mill and mix for 4 hours to obtain ball abrasives, and then ignite the ball abrasives with an oxyacetylene...

example 2

[0024] In parts by weight, take 10 parts of carbomer, 12 parts of polyallylamine, and 150 parts of water successively, pour them into a beaker, stir and mix them with a glass rod for 20 minutes, then let them stand at room temperature for 10 hours, and then move the beaker into several Display speed and constant temperature magnetic stirrer, at a temperature of 65°C and a speed of 600r / min, stir and dissolve at a constant temperature for 30min, after cooling down to 35°C naturally, at a speed of 800r / min, pour it into the beaker at a rate of 80mL / min Pass into carbon dioxide gas, continue to pass into 5h, discharge, obtain dispersion liquid; In the ball mill tank, add 100 parts of steel slag, 20 parts of kerosene, 8 parts of grinding aid successively in parts by weight, and according to the mass ratio of ball to material: Add zirconia ball milling beads at a ratio of 30:1, mill and mix for 4 hours to obtain ball abrasives, and then ignite the ball abrasives with an oxyacetylene f...

example 3

[0026] In parts by weight, take 12 parts of polyallylamine and 150 parts of water successively, pour them into a beaker, stir and mix with a glass rod for 20 minutes, then let it stand at room temperature for 10 hours, and then move the beaker into a digital speed measuring constant temperature magnetic stirrer , at a temperature of 65°C and a speed of 600r / min, stir and dissolve at a constant temperature for 30min, wait for natural cooling to 35°C, and at a speed of 800r / min, pass carbon dioxide gas into the beaker at a rate of 80mL / min, and continue Pass it in for 5 hours, discharge the material, and get the dispersion liquid; in parts by weight, add 100 parts of steel slag, 20 parts of kerosene, and 8 parts of grinding aid in the ball mill tank, and add zirconia according to the mass ratio of the ball to material at 30:1 Ball milling beads, ball milling and mixing for 4 hours to obtain ball abrasives, and then ignite the ball abrasives with oxyacetylene flame, after the comp...

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Abstract

The invention discloses a method for preparing composite steel slag carbonized bricks, and belongs to the technical field of industrial waste slag utilization. According to the method, steel slags, kerosene and grinding aids are mixed, ball milled, ignited and cooled to obtain combustion slags; the combustion slags are then crushed and sieved to obtain pretreated steel slag powder; aggregates, thepretreated steel slag powder and hydrated lime are stirred and mixed with dispersion liquid to be poured into shape and placed at constant temperature and humidity to obtain unburned bricks; the unburned bricks are subjected to autoclave oxidation and fumigated with vinegar to obtain fumigated bricks; the fumigated bricks are then transferred to a carbonization box and subjected to carbonizationat constant temperature and humidity, and the composite steel slag carbonized bricks are obtained after discharge. The composite steel slag carbonized bricks prepared by adopting the method have excellent strength and stability.

Description

technical field [0001] The invention discloses a preparation method of composite steel slag carbonized brick, which belongs to the technical field of industrial waste slag utilization. Background technique [0002] CO 2 is the main greenhouse gas. It is estimated that in 2010 my country's CO 2 The emissions reached 8.24 billion tons, 60% of which came from the tail gas emitted by thermal power and cement industries. The CO in these tail gases 2 The concentration is 10% to 30%. Clearly, reducing CO in the exhaust 2 It is one of the effective technical measures to achieve emission reduction. [0003] On the other hand, in 2010, my country's steel slag discharge reached 80 million tons. Due to the low activity and stability of steel slag, only about 10% of steel slag has been utilized. A large amount of accumulated steel slag occupies land and pollutes the environment. Fortunately, steel slag is rich in CaO and MgO (their total amount is 34% to 52%), which can be combin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12C04B38/00C04B38/08C04B20/02C04B111/40
CPCC04B20/023C04B28/12C04B38/0025C04B38/0035C04B38/0045C04B38/08C04B2111/00017C04B2111/40C04B18/142C04B14/068C04B24/2652C04B24/26
Inventor 唐仕平许玉张淼
Owner CHANGZHOU OPTICAL MATERIAL
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