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Preparation method for composite thermal-insulation brick

A composite thermal insulation and mixed liquid technology, applied in the field of thermal insulation bricks, can solve the problems of low compressive strength, poor weathering resistance, and poor durability of thermal insulation bricks, and achieve the effects of reducing water absorption, increasing water resistance, and reducing production costs

Inactive Publication Date: 2018-06-15
闫博文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention: Aiming at the problems of low compressive strength and poor weathering resistance of current insulating bricks, resulting in poor durability and short service life, the present invention provides a preparation method of composite insulating bricks

Method used

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  • Preparation method for composite thermal-insulation brick

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preparation example Construction

[0022] A preparation method of a composite heat insulating brick, the preparation method comprising the steps of:

[0023] (1) According to the mass ratio of 1:5~7, take the bamboo chips and wheat straw and put them into the pulverizer for 20 minutes at 800r / min, collect the pulverized material, and mix the pulverized material with the mixed solution according to the mass ratio of 4:1~3 Evenly, carry out steam explosion, set the pressure at 1.8~2.3MPa, maintain the pressure for 2~4min, and collect the explosives;

[0024] (2) Freeze-dry the explosives, collect the dry matter, put it into a carbonization furnace, use carbon dioxide for protection, preheat at 130-150°C for 30-50min, then raise the temperature to 180-190°C, carbonize for 2-5h, and collect Carbide, pulverized, passed through a 100-mesh sieve, and collected the sieved particles;

[0025] (3) According to the mass ratio of 4:2:7~10, ultrasonically oscillate the sieved particles, additives and water, let it stand fo...

Embodiment 1

[0029] Preparation of the mixed solution: mix sodium dodecylbenzenesulfonate, ethanol and lactic acid at a mass ratio of 1:6:2.

[0030] Preparation of additives: Mix sodium phytate and sodium pyrophosphate at a mass ratio of 4:1.

[0031] Preparation of mixed particles: Mix aluminum nitrate and calcium chloride at a mass ratio of 1:1.

[0032] Preparation of additives: Mix vinyltrimethoxysilane and maleic anhydride in a mass ratio of 3:5~7.

[0033] A preparation method of a composite heat insulating brick, the preparation method comprising the steps of:

[0034] (1) According to the mass ratio of 1:5, take bamboo chips and wheat straw and put them into the pulverizer for 20 minutes at 800r / min, collect the pulverized material, mix the pulverized material and the mixture evenly at a mass ratio of 4:1, and steam For blasting, set the pressure at 1.8MPa, maintain the pressure for 2 minutes, and collect the explosives;

[0035] (2) Freeze-dry the explosives, collect the dry m...

Embodiment 2

[0040] Preparation of the mixed solution: mix sodium dodecylbenzenesulfonate, ethanol and lactic acid at a mass ratio of 1:9:2.

[0041] Preparation of additives: Mix sodium phytate and sodium pyrophosphate at a mass ratio of 4:1.

[0042] Preparation of mixed particles: Mix aluminum nitrate and calcium chloride at a mass ratio of 1:1.

[0043] Preparation of additives: Mix vinyltrimethoxysilane and maleic anhydride at a mass ratio of 3:7.

[0044] A preparation method of a composite heat insulating brick, the preparation method comprising the steps of:

[0045] (1) According to the mass ratio of 1:7, take bamboo chips and wheat straw and put them into the pulverizer for 20 minutes at 800r / min, collect the pulverized material, mix the pulverized material and the mixture evenly at a mass ratio of 4:3, and steam For blasting, set the pressure at 2.3MPa, maintain the pressure for 4 minutes, and collect the explosives;

[0046] (2) Freeze-dry the explosives, collect the dry matte...

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Abstract

The invention discloses a preparation method for a composite thermal-insulation brick, and belongs to the field of thermal-insulation bricks. According to the method provided by the invention, wheat straw is used as an adding raw material to reduce the production costs, bamboo residues are supplemented, and the bamboo residues are utilized to increase the mechanical properties of the wheat straw and the antibacterial performance of the wheat straw; low-temperature micro carbonization is performed by utilizing the difference of carbonization temperatures of the bamboo residues and the wheat straw to make carbonization incomplete, in the carbonization process, colloid and other substances in the wheat straw are decomposed to increase pores, at the same time, the activated bamboo residue powder is embedded into the wheat straw, then the powder and an additive are mixed, substances in the additive are adsorbed through a carbide, and the additive is supported into the pores; and metal ionsin the added particles are adsorbed by utilizing properties of sodium phytate and sodium pyrophosphate, and the generated pores are filled, so that the porosity is reduced, and the weathering resistance is improved. The method provided by the invention solves the problems that a current thermal-insulation brick has low compressive strength and poor weathering resistance, thereby having poor durability and short service life.

Description

technical field [0001] The invention belongs to the field of thermal insulation bricks, and in particular relates to a preparation method of composite thermal insulation bricks. Background technique [0002] Bricks are man-made small blocks for construction, divided into fired bricks (mainly clay bricks) and non-fired bricks (lime sand bricks, fly ash bricks, etc.), commonly known as bricks, and are the most traditional masonry materials. Bricks have a long history, and bricks appeared at the end of slave society and the beginning of feudal society. From the architectural sites of the Warring States Period, strip bricks, square bricks and railing bricks have been found in various varieties, mainly used for paving floors and walls. Strip bricks and square bricks are formed by molding, with decorative patterns on the outside. Animal patterns are engraved on both sides of the railing bricks. The real mass use of bricks began in the Qin Dynasty. After Qin Shihuang unified Chi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B111/21
CPCC04B28/02C04B2111/21C04B2201/20C04B2201/32C04B2201/50C04B14/022C04B24/026C04B14/042C04B14/04C04B24/20C04B24/06C04B24/04C04B22/16C04B22/085C04B22/124C04B24/42C04B24/14
Inventor 闫博文徐克程依
Owner 闫博文
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