Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for making bricks by using mineralized carbon dioxide

A technology of carbon dioxide and process, applied in the field of mineralized carbon dioxide brick-making process, can solve the problems of high equipment investment, long maintenance time, high maintenance pressure, etc., achieve the effects of reducing operation and investment costs, dense product layer, and improving utilization efficiency

Inactive Publication Date: 2021-09-03
四川博菲硕科技有限公司
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In view of the low mineralization efficiency and CO 2 Problems of high maintenance pressure, long maintenance time, and high equipment investment; the invention provides a brick-making process of mineralized carbon dioxide

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Process for making bricks by using mineralized carbon dioxide
  • Process for making bricks by using mineralized carbon dioxide
  • Process for making bricks by using mineralized carbon dioxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] In this embodiment, the raw material for making bricks is composed of fly ash, cement, quicklime and gypsum, and the auxiliary agent is aluminum powder and a stabilizer (obtained on the market); wherein fly ash, cement, quicklime, gypsum, aluminum powder and stabilizer The mass fractions of the bricks are as follows: 30-50%, 20-40%, 20-40%, 5-8%, 0.1-1% and 0.1-0.5%; after curing, the formed bricks meet the requirements of the national GB / T11968-2020 AAC-B A3.5 B0.5600X200X250 (I) standard requirements.

[0058] Three kinds of absorbing liquids are set in the present embodiment, and three kinds of absorbing liquids are respectively the MEA solution of concentration 3%, the ammonia solution of concentration 8%, the NaCl solution of concentration 15%, three kinds of absorbing liquids carry out the following steps respectively:

[0059] S1: Pulverize brick-making raw materials and additives and mix them in proportion to obtain raw powder dry material. The particle size of ...

Embodiment 2

[0073] The difference between this example and Example 1 is: the curing pressure is 0.4MPaG, the initial curing temperature is 25°C, and the CO 2 CO in atmosphere 2 The concentration of three kinds of absorbing liquids is set as follows in the present embodiment: 0-100g / L of MEA solution, 0-300g / L of ammonia solution, 150-300g / L of NaCl solution, and the concentration change of absorbing liquid is analyzed Analysis of the influence of mineralization on the mineralization process, the results are as follows image 3 shown.

[0074] Depend on image 3 It can be seen that with the increase of the concentration of the absorption solution, the mineralization time showed an obvious decreasing trend, indicating that with the increase of the concentration of the absorption solution, the mineralization effect was gradually enhanced.

[0075] Due to the difference in the reaction mechanism of the three absorption solutions, the difference in the mineralization effect area of ​​the th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a process for making bricks by using mineralized carbon dioxide. The process comprises the steps of crushing a brick making raw material and an auxiliary agent, and mixing in proportion to obtain a raw powder dry material; preparing an absorption liquid for mineralizing CO2; adding the absorption liquid into the raw powder dry material, introducing CO2 gas at the same time, and conducting premixing to obtain slurry; carrying out homogenization treatment on the premixed slurry to obtain a brick making raw material, and introducing CO2 gas in the homogenization treatment process; pouring the brick making raw material into a formed building block; enabling the formed building block to be subjected to standing, demolding, pre-curing and cutting to obtain a formed brick; and feeding the formed brick into a CO2 gas atmosphere to be cured, wherein the curing pressure is greater than or equal to 0.1 MpaG, the curing time is greater than or equal to 1 h, and the content of CO2 in the CO2 gas atmosphere is greater than or equal to 10 vol%. According to the process for making bricks by using mineralized carbon dioxide, the pressure of CO2 needed in the curing process is reduced, the curing time is shortened, the cost needed by curing is also reduced, the cost is saved, and the application range of CO2 mineralized brick making is widened.

Description

technical field [0001] The invention belongs to the technical field of carbon dioxide utilization, and specifically relates to a brick-making process of mineralized carbon dioxide, which is used as a building material. Background technique [0002] Alkaline industrial waste has little reuse value and can generally be obtained and utilized at low cost. CO 2 Mineralization technology enables waste reuse and CO 2 reduction in emissions. Alkaline industrial waste includes carbide slag, fly ash, blast furnace slag, construction waste, etc. These are highly alkaline wastes with great carbon sequestration capacity. Because the captured carbonate product is not only harmless to the environment, but also may have economic value, this technology has received a lot of attention in recent years, and this method is also a It is a permanent carbon sequestration strategy and an important measure to deal with climate change. [0003] According to the characteristics of alkaline waste, t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B28/14C04B40/02
CPCC04B28/14C04B2111/00017C04B18/08C04B7/00C04B22/064C04B22/04C04B22/06C04B22/124C04B40/0236C04B24/122
Inventor 席向峰冯浩詹敬杰
Owner 四川博菲硕科技有限公司