Energy-saving emission reduction process for ceramic production
A production process, energy saving and emission reduction technology, applied in the field of ceramic production, can solve the problems of insufficient and reasonable recovery of flue gas and hot air, low energy utilization rate, and insufficient and reasonable utilization, etc., to achieve good governance and a good environment benefit, the effect of reducing the number of
Active Publication Date: 2011-09-28
GUANGDONG OVERLAND CERAMICS CO LTD
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Problems solved by technology
That is to say, the energy utilization rate is very low in the process of powder making (spray drying tower), drying and sintering process (roller kiln and tunnel kiln), because the waste heat of flue gas and hot air is not fully and reasonably recovered, nor is it achieved degree of full and reasonable utilization
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[0027] Such as Figure 1~Figure 4 As shown, the production process of the present invention includes ball milling of raw materials into powder, mixing of ingredients into slurry, drying into a hollow spherical shape through a spray drying tower 6, and then extruding into a wet green body 18 with a moisture content of 7-8%. , after being dried by a drier 15 with a moisture content below 0.5%, it is sintered into a semi-product 20 by a roller kiln, and finally polished into a final product. In the production process flow chart of the above products, such as Figure 1 As shown, the process of using heat has a spray drying tower 6, a dryer 15 to dry the blank and a roller kiln sintering 19 process. The working fluids used by the three are all gases, but the temperatures used are different; according to the principle of using energy in different energy levels, the present invention considers the energy consumption of the three together, and the flue gas 1 and hot air 2 discharged ...
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Abstract
The invention discloses an energy-saving and emission-reducing production process for ceramic production, which comprises sintering processes in a spray drying tower, a desiccator drying base and a roller kiln in the ceramic production process, and is characterized in that the smoke gas or hot blast produced in the sintering process in the roller kiln is induced to the desiccator drying base bodyin the process, the exhaust air from a desiccator is led to the entrance of the spray drying tower, meanwhile, the rapidly cooled and slowly cooled hot blast is partially sent to a sintered burning zone as the combustion-supporting wind, and the rest is sent to the spray drying tower for air distribution and is prepared with the smoke gas with the temperature of 1100 DEG C in a hot-blast stove 7 to form the mixed hot blast with the temperature of between 600 DEG C and 450 DEG C which is used as the spray drying hot blast for the process, and the superfluous smoke gas or the hot blast are led to the entrance of an environmental protection treatment device and mixed with the exhaust air of a spray drying tower 6 to enter the environmental protection treatment device for discharging. The production process integrates energy saving and environmental protection into one body and has great practical and promotion value.
Description
technical field [0001] The invention relates to the technical field of ceramic production, and more specifically relates to energy-saving and emission-reduction technology for ceramic production. Background technique [0002] The ceramic industry is a traditional manufacturing industry in my country. At present, my country's output of ceramic products is still the largest in the world, it is the largest consumer market for ceramic products, and it is also the world's largest importer and exporter of ceramic products. In Guangdong, Foshan and Chaozhou ceramics industries account for a large proportion. Foshan Ceramics has thousands of production lines, a production capacity of about 1.5 billion square meters, an output value of more than 40 billion yuan, and complete supporting facilities. Its scale and quality rank first in the country. It is second to none. Foshan architectural ceramics enterprises account for half of the domestic architectural ceramics. However, under t...
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IPC IPC(8): C04B35/622
Inventor 麦文英丁光学唐德武汪加武叶建明
Owner GUANGDONG OVERLAND CERAMICS CO LTD