阅读说明：本技术 一种三孔景观仿古砖控制烧结曲线的方法 (Method for controlling sintering curve of three-hole landscape archaized brick ) 是由 袁东海 谢博宣 谢祥 郭传杰 黄强 任巧雷 许运成 于 2019-09-21 设计创作，主要内容包括：本发明涉及仿古景观砖制备技术领域,且公开了一种三孔景观仿古砖控制烧结曲线的方法,其特征在于,包括以下重量份数的配比：黏土25-35份,页岩15-25份,陶土15-25份,砂岩25-35份,包括以下步骤：取样、样品加工实验、烧结曲线绘制、烧结曲线调整等阶段。该三孔景观仿古砖控制烧结曲线的方法,首先通过小样实验的方法,预先测出此颗粒级配下烧结曲线的大致情况,根据小样在烧结过程中最高温度时所产生的液相量是否符合标准作为大规模生产过程中烧结曲线生成的指导,从而避免了不同颗粒级配因为烧结曲线的不同而导致的成品率低的情况发生,进而极大的提高了三孔仿古砖的成品率,并且降低了生产成本。(The invention relates to the technical field of preparation of antique landscape bricks and discloses a method for controlling a sintering curve of a three-hole landscape antique brick, which is characterized by comprising the following components in parts by weight: 25-35 parts of clay, 15-25 parts of shale, 15-25 parts of argil and 25-35 parts of sandstone, and the method comprises the following steps: sampling, sample processing experiment, sintering curve drawing, sintering curve adjustment and the like. The method for controlling the sintering curve of the three-hole landscape archaized brick comprises the steps of firstly, testing the rough condition of the sintering curve under the particle grading in advance through a method of a small sample experiment, and taking the condition as a guidance for generating the sintering curve in the large-scale production process according to whether the liquid phase amount generated by the small sample at the highest temperature in the sintering process meets the standard or not, so that the condition that the yield is low due to the fact that different particle grading are different in sintering curve is avoided, the yield of the three-hole landscape archaized brick is greatly improved, and the production cost is reduced.)

1. a method for controlling a sintering curve of a three-hole landscape archaized brick is characterized by comprising the following components in parts by weight: 25-35 parts of clay, 15-25 parts of shale, 15-25 parts of argil and 25-35 parts of sandstone, and the method comprises the following steps:

1) Taking one tenth of the total mass part of the raw materials as a sample, and recording the highest sintering temperature;

2) Carrying out a process experiment on the small sample, controlling the highest sintering temperature and prolonging the heat preservation time;

3) Recording various data in the process of sintering the sample, and drawing a sintering curve diagram;

4) Sintering the rest raw materials according to the steps of moisture removal, temperature rise, sintering, heat preservation and reduction according to the small sample process test diagram;

5) According to a small sample experiment, a sintering curve is refined through temperature control, air inlet speed control and heat preservation time control.

2. the method for controlling the sintering curve of the three-hole landscape archaized brick as claimed in claim 1, wherein the maximum sintering temperature of the sample is between 900-1000 ℃.

3. The method for controlling the sintering curve of the three-hole landscape archaized brick according to claim 1, wherein the time of the moisture removing and heating stage is 2-3 days, and the maximum temperature of the heating stage is 800 ℃.

4. The method for controlling the sintering curve of the three-hole landscape archaized brick as claimed in claim 1, wherein the temperature of the sintering stage is 950-.

5. The method for controlling sintering curves of three-hole landscape archaized bricks according to claim 1, wherein the time of the heat preservation stage is 6-8 hours.

6. The method as claimed in claim 1, wherein the temperature of the reduction stage is controlled at 800-900 ℃, carbon monoxide gas is continuously blown into the brick kiln during the reduction process, and the reduction time is kept between 2 and 4 hours.

Technical Field

The invention relates to the technical field of preparation of antique landscape bricks, in particular to a method for controlling a sintering curve of a three-hole landscape antique brick.

Background

The antique brick imitates the past style and makes old, attracts people's attention with the unique charm with classical, and creates a nostalgic atmosphere through style, color and pattern in order to reflect vicissitudes of years and heaven of history. The antique is the effect of the brick, and the brick with the antique effect is obtained.

at present, archaized bricks are increasingly applied to the building industry, cultural antiques are repaired, modern buildings in the archaized style also need the building materials for decoration, the existing archaized bricks are mostly formed by sintering high-quality mineral resources in order to improve the strength and the archaized effect of the existing archaized bricks, the production process is complex, the compressive strength is good and not ideal, a series of problems such as cracks, low strength of speckles and the like generally exist in the sintered brick body, and the problems are related to the control of a sintering curve in the sintering process.

The strength of tile products is mainly controlled by the liquid phase amount at high temperature, the liquid phase amount of common products is 2%, the product is distorted and deformed due to excessive liquid phase amount, the liquid phase amount of the three-hole landscape bricks is generally required to be controlled between 2.5 and 2.8%, and the control of the liquid phase amount is the control of a sintering curve.

The control of the sintering curve directly influences the qualification rate of finished bricks, and the application of the sintering curve is often neglected in the prior sintering curve of a brick factory in order to improve the yield in the actual application, so that a large amount of unqualified bricks are generated, and great economic loss is brought to enterprises.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the method for controlling the sintering curve of the three-hole landscape archaized brick, which has the advantages of simple process flow, more accurate temperature control, high green brick yield and the like, and solves the problems of inaccurate temperature control and low green brick yield in the previous brick making process.

(II) technical scheme

In order to realize the purposes of simple process flow, more accurate temperature control and high green brick yield, the invention provides the following technical scheme: the formula comprises the following components in parts by weight: 25-35 parts of clay, 15-25 parts of shale, 15-25 parts of argil and 25-35 parts of sandstone, and the method comprises the following steps:

1) taking one tenth of the total mass part of the raw materials as a sample, and recording the highest sintering temperature;

2) Carrying out a process experiment on the small sample, controlling the highest sintering temperature and prolonging the heat preservation time;

3) Recording various data in the process of sintering the sample, and drawing a sintering curve diagram;

4) And sintering the rest raw materials according to the steps of moisture removal, temperature rise, sintering, heat preservation and reduction according to the small sample process test diagram.

5) According to a small sample experiment, a sintering curve is refined through temperature control, air inlet speed control and heat preservation time control.

Preferably, the maximum sintering temperature of the sample is between 900 and 1000 ℃.

Preferably, the time of the moisture removing and temperature rising stage is 2-3 days, and the maximum temperature of the temperature rising stage is 800 ℃.

preferably, the time of the moisture removing and temperature rising stage is 2-3 days, and the maximum temperature of the temperature rising stage is 800 ℃.

Preferably, the time of the incubation period is 6 to 8 hours.

preferably, the temperature in the reduction stage is controlled at 800-900 ℃, carbon monoxide gas is continuously blown into the brick kiln in the reduction process, and the reduction time is kept to be 2-4 h.

(III) advantageous effects

Compared with the prior art, the invention provides a method for controlling sintering curves of three-hole landscape archaized bricks, which has the following beneficial effects:

The method for controlling the sintering curve of the three-hole landscape archaized brick comprises the steps of firstly, testing the rough condition of the sintering curve under the particle grading in advance through a method of a small sample experiment, and taking the condition as a guidance for generating the sintering curve in the large-scale production process according to whether the liquid phase amount generated by the small sample at the highest temperature in the sintering process meets the standard or not, so that the condition that the yield is low due to the fact that different particle grading are different in sintering curve is avoided, the yield of the three-hole landscape archaized brick is greatly improved, and the production cost is reduced.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A method for controlling a sintering curve of a three-hole landscape archaized brick comprises the following steps of: 30 parts of clay, 20 parts of shale, 20 parts of argil and 30 parts of sandstone, and the method comprises the following steps: 1) taking one tenth of the total mass part in the raw material ratio as a small sample, recording the maximum sintering temperature of the small sample at 900-1000 ℃; 2) carrying out a process experiment on the small sample, controlling the highest sintering temperature and prolonging the heat preservation time; 3) recording various data in the process of sintering the sample, and drawing a sintering curve diagram; 4) sintering the residual raw materials according to the steps of moisture removal, temperature rise, sintering, heat preservation and reduction according to a sample process test diagram, wherein the time used in the moisture removal and temperature rise stage is 2-3 days, the highest temperature in the temperature rise stage is 800 ℃, the temperature in the sintering stage is 980 ℃, the time in the sintering stage is 22 hours, the time in the heat preservation stage is 7 hours, the temperature in the reduction stage is controlled to be 900 ℃, carbon monoxide gas is continuously blown into the brick kiln in the reduction process, and the reduction time is kept to be 3 hours; 5) according to a small sample experiment, a sintering curve is refined through temperature control, air inlet speed control and heat preservation time control.