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Production method of high-strength zeolite water-permeable bricks

A permeable brick and high-strength technology, which is applied in the field of preparation of high-strength zeolite permeable bricks, can solve the problems of poor continuous water permeability, poor filtering effect, low mechanical strength, etc., and achieve broad application prospects, enhanced cohesion, and improved mechanical strength.

Inactive Publication Date: 2018-05-18
仇颖超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the existing concrete permeable bricks mainly rely on the large pores on the surface to permeate water. The porosity is more than 20%, and they are easily blocked by dust, so the continuous water permeability is poor. In addition, due to the large pores, its use Due to the poor water filtration effect and low mechanical strength, it is prone to collapse or delamination defects after bumping during actual handling or paving. A preparation method for high-strength zeolite permeable bricks is provided.

Method used

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  • Production method of high-strength zeolite water-permeable bricks

Examples

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Effect test

example 1

[0026]Select a macroporous resin with a pore diameter of 800nm ​​and put it into a carbonization furnace, and feed nitrogen gas into the carbonization furnace at a rate of 10mL / min, heat it up to 400°C under the protection of nitrogen gas, and keep it carbonized for 2 hours to obtain a carbonized skeleton. After mixing with absolute ethanol at a mass ratio of 1:5, the shaker was shaken and impregnated for 6 hours. After the oscillation was completed, the filter residue was obtained by filtration and separation. After crushing, it was passed through a 50-mesh sieve to obtain modified carbonized skeleton particles; the mass ratio was 1:2: 10:40:120 Mix sodium metaaluminate, sodium hydroxide, modified carbonized skeleton particles, potassium thiocyanate solution with a mass fraction of 10% and deionized water, put them into a beaker to obtain a mixed solution, and move the beaker into a water bath , heat up to 70°C, continue to add 30% tetraethyl orthosilicate dropwise into the be...

example 2

[0028] Select a macroporous resin with a pore diameter of 8500nm and put it into a carbonization furnace, and feed nitrogen gas into the carbonization furnace at a rate of 10mL / min, heat it up to 450°C under the protection of nitrogen gas, and keep it carbonized for 2.5h to obtain a carbonized skeleton. Skeleton and absolute ethanol are mixed at a mass ratio of 1:5, shaken and soaked in a shaking table for 7 hours, filtered and separated to obtain a filter residue after shaking, crushed and passed through a 50-mesh sieve, and the modified carbonized skeleton particles are obtained; the mass ratio is 1:2 :10:40:120 Mix sodium metaaluminate, sodium hydroxide, modified carbonized skeleton particles, potassium thiocyanate solution with a mass fraction of 10% and deionized water, put them into a beaker to obtain a mixed solution, and put the beaker into a water bath In the pot, heat up to 75°C, continue to add 30% tetraethyl orthosilicate to the beaker dropwise, keep stirring and re...

example 3

[0030] Select a macroporous resin with a pore diameter of 900nm and put it into a carbonization furnace, and inject nitrogen gas into the carbonization furnace at a rate of 10mL / min, heat up to 500°C under the protection of nitrogen gas, and keep warm for 3 hours to obtain a carbonized skeleton. After mixing with absolute ethanol at a mass ratio of 1:5, shake the shaker and impregnate for 8 hours. After the oscillation is completed, filter and separate to obtain a filter residue. After crushing, pass through a 50-mesh sieve to obtain modified carbonized skeleton particles; the mass ratio is 1:2: 10:40:120 Mix sodium metaaluminate, sodium hydroxide, modified carbonized skeleton particles, potassium thiocyanate solution with a mass fraction of 10% and deionized water, put them into a beaker to obtain a mixed solution, and move the beaker into a water bath , heat up to 80°C, continue to add 30% tetraethyl orthosilicate dropwise into the beaker, and keep stirring for 3 hours to obt...

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Abstract

The invention relates to the technical field of the production of water-permeable bricks, in particular to a production method of high-strength zeolite water-permeable bricks. The production method has the advantages that resin is carbonized and crushed, hydroxylation modification is performed, tetraethyl orthosilicate is added into the mixed liquid of alkali, aluminum source sodium metaaluminateand modified carbonized framework particles to synthesize carbonized framework particles, the adsorption activity of molecular sieves is increased under the effect of potassium thiocyanate, the carbonized framework particles with high-adsorption-activity zeolite molecular sieves deposited on the surfaces, lemon juice, tartaric acid and acidophilic bacteria are subjected to blending fermentation, the hydrophilic property of zeolite is increased and self-made water-permeable filler is obtained, the self-made water-permeable filler, cement, a sodium silicate solution and the like are compounded and injected into dies, and solidification is performed to obtain the high-strength zeolite water-permeable bricks; the generation of high-bond-energy chemical bonds greatly enhances cohesion inside the water-permeable bricks, the mechanical strength of the water-permeable bricks is thus increased, and the production method is promising in application prospect.

Description

technical field [0001] The invention relates to the technical field of preparation of permeable bricks, in particular to a method for preparing high-strength zeolite permeable bricks. Background technique [0002] With the gradual acceleration of urbanization in our country, the surface of the earth is gradually covered by various buildings, cement, concrete, and natural stone. These hardened pavements make it difficult to exchange heat and moisture between the ground surface and the air. The ability to naturally adjust the temperature and humidity of the urban ground is very poor, and it is difficult for the surface to absorb heat, resulting in a large amount of waste heat in the urban space. As a result, the nighttime temperature in the city is higher than that in the suburbs. When it rains, the hardened ground completely prevents the rainwater from penetrating directly into the ground, and the accumulated water on the ground makes it very inconvenient for people to trave...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/02
CPCC04B28/04C04B20/023C04B2111/00284C04B2111/0075C04B2201/50C04B18/08C04B24/2652C04B14/047
Inventor 仇颖超张晶张建初
Owner 仇颖超
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