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Pavement brick for reducing air dust and preparing method

A pavement brick and air technology, applied in clay products, ceramic products, applications, etc., can solve the problems of abnormal weather and climate, weakening solar radiation, increasing weather disasters, etc., achieving good dust absorption effect, simple production process, and reducing dust pollution. Effect

Inactive Publication Date: 2017-08-22
合肥慧林建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] ④Cause acidic rainfall, which will have adverse effects on agriculture, forestry, freshwater aquaculture, etc.
[0007] ⑥ Impact on the global climate, such as the increase of greenhouse gases such as carbon dioxide will lead to warming of the earth's atmosphere, leading to an increase in global weather disasters, and the increase of aerosol particles such as smoke and dust will increase the turbidity of the atmosphere, weaken solar radiation, and affect the earth Long-wave radiation, causing abnormal weather and climate
[0009] However, the existing pavement bricks cannot absorb harmful gases and cannot purify the gas environment. Therefore, it is necessary to develop a pavement brick that can purify the air, especially in urban spaces.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0055] The preparation method of the pavement brick that reduces airborne dust comprises the steps:

[0056] Step (1): Mixing

[0057] Weigh titanium dioxide, modified attapulgite and fly ash according to the ratio of parts by weight, mix and stir to obtain mixture A, add water reducing agent and pore-forming agent of corresponding parts by weight to mixture A, stir evenly, and add water Stir until the water content of mixture A is 10-17% to obtain mixture B;

[0058] Step (2): Molding

[0059] Input the mixture B into the hydraulic brick making machine to form the adobe; by changing the forming mold, it can be made into different shapes and sizes of pavement bricks and curbstone adobes;

[0060] Step (3): Drying

[0061] Dry the adobe by natural drying or using the waste heat of the kiln to reduce the moisture content of the adobe to 7-9%;

[0062] Step (4): Roasting

[0063] The dried bricks are sent to the kiln for roasting, the temperature is controlled at 950°C-1060°...

Embodiment 1

[0066] One aspect of this embodiment provides a pavement brick for reducing airborne dust, which includes the following components in parts by weight: 30 parts of titanium dioxide, 0.01 part of water reducing agent, and 35 parts of modified attapulgite , 30 parts of fly ash and 5 parts of pore former.

[0067] The pore forming agent is any one or a mixture of perlite, diatomite, sawdust, polystyrene microbeads, calcined zeolite or brewer's residue.

[0068] The modification method of described modified attapulgite is as follows:

[0069] Step (1): Crushing the attapulgite ore through a crusher;

[0070] Step (2): Sieve the crushed attapulgite clay with a particle size of 60 mesh;

[0071] Step (3): roasting the sieved attapulgite clay in a roasting furnace, the roasting temperature is controlled at 370-460° C., and the roasting time is controlled at 3-4 hours to prepare modified attapulgite clay.

[0072] Provided on the one hand is a method for preparing pavement bricks th...

Embodiment 2

[0083] One aspect of this embodiment provides a pavement brick for reducing airborne dust, which includes the following components in parts by weight: 20 parts of titanium dioxide, 2.05 parts of water reducing agent, and 25 parts of modified attapulgite , 40 parts of fly ash and 1 part of pore former.

[0084] The pore forming agent is any one or a mixture of perlite, diatomite, sawdust, polystyrene microbeads, calcined zeolite or brewer's residue.

[0085] The modification method of described modified attapulgite is as follows:

[0086] Step (1): Crushing the attapulgite ore through a crusher;

[0087] Step (2): Sieve the crushed attapulgite clay with a particle size of 50-60 mesh;

[0088] Step (3): Roasting the sieved attapulgite clay in a roasting furnace, the roasting temperature is controlled at 370-460° C., and the roasting time is controlled at 4 hours to prepare modified attapulgite clay.

[0089] Provided on the one hand is a method for preparing pavement bricks t...

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Abstract

The invention belongs to the technical field of road board processing, and provides a pavement brick for reducing air dust and a preparing method. The pavement brick for reducing the air dust is prepared from titanium dioxide, a water reducing agent, modified attapulgite, flyash and a pore-forming agent. According to the pavement brick for reducing the air dust and the preparing method, the formula of existing pavement bricks is adjusted and added with the titanium dioxide and the modified attapulgite, the adsorbability of the pavement bricks is improved, the particulate matter on road surfaces can be adsorbed, the dust raised in the air environment is reduced, and accordingly the raised dust pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of road plate processing, and in particular relates to a pavement brick for reducing air dust and a preparation method thereof. Background technique [0002] my country's air pollution is becoming more and more serious, and the sources of air pollution can be divided into two categories: natural and man-made. Man-made pollution sources are formed by people engaged in production and living activities. In man-made pollution sources, it can be divided into fixed (such as chimneys, industrial exhaust stacks) and mobile (such as automobiles, trains, airplanes, ships). Due to the ubiquity of man-made pollution sources, people pay more attention to them than natural pollution sources. [0003] The harm and impact of air pollution on human beings and their living environment can be summed up in the following aspects: [0004] ①Hazard to human health. There are three ways for the human body to be harmed, that is,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B33/132C04B33/135
CPCC04B33/132C04B33/1352C04B38/0645C04B38/067C04B38/0675C04B2235/3232C04B2235/3418C04B2235/3427C04B2235/3472Y02P40/60
Inventor 刘伍
Owner 合肥慧林建材有限公司
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