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A method for adjusting temperature curve of kiln system by using warm bricks

A system temperature and band temperature technology, applied in the field of ceramic brick kilns, can solve problems such as easy breakage, short service life, unfavorable kiln system stability, etc., and achieve the effect of prolonging service life, improving water absorption rate, and simple and practical adjustment methods

Active Publication Date: 2021-12-03
肇庆乐华陶瓷洁具有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the strength of this warm brick is high, it is easy to break during the cyclic firing process and has a short service life.
In addition, this kind of porcelain warm brick takes away less heat, which is not good for maintaining the overall stability of the kiln system

Method used

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  • A method for adjusting temperature curve of kiln system by using warm bricks

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Effect test

preparation example Construction

[0057] Correspondingly, the present invention also discloses a preparation method for the above-mentioned heated brick, which includes:

[0058] (1) Mix 5-10 parts of roller bar waste, 10-25 parts of magnesia soil, 10-20 parts of bentonite, and 5-15 parts of potassium sodium sand to obtain the first mixture;

[0059] The particle size of roller bar waste and potassium sodium sand is relatively large (>3cm); magnesia soil and bentonite contain some larger soil and / or mud lumps; therefore, these components are firstly mixed and ball milled to promote crushing efficiency. ,

[0060] (2) Mix 1-5 parts of polished brick waste residue, 30-40 parts of fly ash, and 0.5-1.5 parts of binder to obtain a second mixture;

[0061] Polished brick waste slag is the waste slag produced during the polishing process of polished bricks, and its particle size is very small, below 200 mesh (74 μm); fly ash is a product of coal combustion, and its particle size is also small, generally 150 mesh (1...

Embodiment 1

[0082] Embodiment 1 with warm brick

[0083] The present embodiment provides a kind of warm brick that is used for porcelain brick kiln, and its formula is:

[0084] 7 parts of roller bar waste, 23 parts of magnesia soil, 17 parts of bentonite, 4 parts of polished brick waste residue, 36 parts of fly ash, 13 parts of potassium sodium sand; 1 part of sodium carboxymethyl cellulose;

[0085] Among them, the Al 2 o 3 The content is 58.6wt%; the content of MgO in magnesia soil is 23.2wt%, SiO 2 The content is 65.9wt%, Al 2 o 3 The content of Al in fly ash is 1.6wt%; 2 o 3 The CaO content is 31.7 wt%, and the CaO content is 12.4 wt%.

[0086] The preparation method is the same as in Example 2.

Embodiment 2

[0094] Example 2 Using warm bricks to adjust the temperature curve of the kiln system

[0095] This embodiment discloses a method for adjusting the temperature curve of the kiln system by using heated bricks, including:

[0096] (1) Soak the warm brick of Example 1 in water for 2 minutes and then pull it out and drain it;

[0097] (2) close the first valve and the second valve; the opening degree of the third valve is increased to 80%, and the opening degree of the fourth valve is increased to 90%;

[0098] (3) Put the drained heated bricks into the conveying device and send them into the firing kiln;

[0099] (4) After entering the kiln with warm bricks for 8 minutes, increase the opening of the first valve to 40%, reduce the opening of the third valve to 15%, and increase the opening of the fifth valve to 70%.

[0100] (5) After entering the kiln with warm bricks for 40 minutes, increase the opening of the second valve to 40%; reduce the opening of the fourth valve to 25%....

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Abstract

The invention discloses a method for adjusting the temperature curve of a kiln system by using warm bricks, which comprises soaking the warm bricks with a water absorption rate of 10-20% in water and putting them into a firing kiln for firing. The flue gas from the preheating section and oxidation section of the kiln is extracted by the exhaust fan into the front end of the drying kiln - the wet-cooling drying section, and the exhaust gas from the slow cooling section and the rapid cooling section is drawn into the back end of the drying kiln - the dry-cooling drying section; Make the flue gas in the preheating section and oxidation section have reasonable humidity, thus greatly reducing the probability of dry cracking. At the same time, by extracting waste gas, not only can the purpose of controlling the temperature curve of the firing kiln be achieved, but also the comprehensive utilization of heat can be realized. Moreover, the adjustment means required by the present invention is simple and practical, and can effectively maintain the temperature curve of the kiln to be stable.

Description

technical field [0001] The invention relates to the technical field of ceramic brick kilns, in particular to a method for adjusting the temperature curve of a kiln system by using heated bricks. Background technique [0002] Most of the existing ceramic tile manufacturers use roller kilns for drying and firing, and the roller kilns are continuous production for 24 hours. In the continuous production process, in order to stabilize the quality of the product, the temperature, atmosphere and pressure of the kiln need to be kept stable. However, with the development of the ceramic tile industry, the decoration of tiles has become more and more diversified, so more and more production has been changed during the production process, and the phenomenon of empty kilns has also increased, that is, no bricks enter the kiln, resulting in empty kiln firing; The empty kiln will directly have a great impact on the temperature, atmosphere and pressure of the kiln. The direct harm is that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D1/04F27D7/04F27D17/00F27D19/00
CPCF27D1/04F27D7/04F27D17/004F27D19/00F27D2019/0003Y02P10/25
Inventor 谢岳荣霍振辉徐鹏飞陈世立
Owner 肇庆乐华陶瓷洁具有限公司
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