Method for producing large-size thin ceramic bricks by microwave and hot air composite drying

A technology of composite drying and production methods, applied in applications, household appliances, and other household appliances, can solve problems such as cracking and deformation of heated blanks, and achieve the effects of uniform thermal stress, high speed, and cost reduction

Active Publication Date: 2013-01-09
中国国检测试控股集团陕西有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The purpose of the present invention is to solve the problem that the existing hot air drying and natural drying methods are dehydration of the ceramic tile body. Since the ceramic tile body is not in the same heating range as the heat source and direction, the thermal stress easily generated by uneven heating will cause the body to crack and deform.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Test site: Guangdong Mona Lisa Ceramics Co., Ltd. Run through the test line. Use microwave and hot air to dry ceramic tile body.

[0032] The production method and process are:

[0033] The thin ceramic tile body with a moisture content of 16% to 18% first enters the microwave drying room, the drying temperature is 50°C, and the drying time is about 20 minutes. The temperature is 105°C, the drying time is about 40min, and the pressure is 22Pa.

Embodiment 2

[0035] The production method and process are:

[0036] Thin ceramic tiles with a moisture content of 16% to 18% first enter the microwave drying room, the drying temperature is 80°C, and the drying time is about 17 minutes, and the moisture in the ceramic tiles is dried to around 8%; directly enter the hot air drying room , The hot air temperature is 120°C, the drying time is about 35mih, and the pressure is 28Pa.

[0037] The experimental statistical results are shown in the table below:

[0038] Experimental results:

[0039] Ceramic tile drying method

[0040] From the above experimental statistical table, compared with the traditional ceramic tile body dehydration and drying method, the qualified rate of the ceramic tile body is significantly improved. After adopting the microwave hot air composite new technology, the qualified rate of the ceramic tile body drying can reach 95%, and the energy-saving effect very obvious. The time taken to produce the same prod...

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Abstract

The invention relates to a method for producing large-size thin ceramic bricks by microwave and hot air composite drying, and belongs to the technical field of ceramic brick body dehydration production process. The method has the main technical characteristic that: the ceramic brick body is dried by using microwave and hot air respectively. The method comprises the following steps of: putting theceramic brick body with moisture content of 16 to 18 percent into a microwave drying room to perform drying treatment; and allowing the ceramic brick body to enter a hot air drying room to perform microwave forming drying and hot air dying. The method has the advantages of high drying speed, uniform heating and drying, high forming quality of products, high thermal efficiency, balanced thermal stress, time conservation, and capability of making the ceramic brick body uniformly changed during dehydrating and drying by microwave dehydrating and drying at first, and the method also has the advantage of reducing the dehydrating cost of the ceramic brick body by dehydrating and drying the ceramic brick body with the hot air.

Description

1. Technical field [0001] The invention relates to a production method for dehydration and drying of a ceramic brick body, in particular to a production method for drying large-size thin ceramic bricks by combining microwaves and hot air, and belongs to the technical field of dehydration production methods for a ceramic brick body. 2. Background technology [0002] The dehydration and drying of the ceramic tile body before firing is a very important production link, which is very important for improving the quality of the finished ceramic tile, because the ambient temperature and the methods and equipment used for the dehydration and drying of the ceramic tile body are not well mastered. It is easy to produce waste products, which affects the quality and cost of ceramic tile products. At present, the drying methods of ceramic tile body mainly include hot air drying and natural drying. [0003] When making ceramic tiles, a certain amount of water should be added to the clay ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/30C04B35/622
Inventor 黄岷苑克兴马小鹏张卫星
Owner 中国国检测试控股集团陕西有限公司
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