Process for producing brick by waste heat drying sludge from sintered brick production line tunnel kiln

Abstract

The invention discloses a process for producing a brick by waste heat drying sludge from a sintered brick production line tunnel kiln, and the sintered brick production line tunnel kiln includes waste heat from a cooling section of a roasting kiln, a wet sewage sludge bin, a mud conveying pipe, a sludge drying machine, a cyclone dust collector, an induced draft fan, a desulfurizing tower, a spiral conveyer, a dry sludge bin, an air intake pipeline, air exhaust pipelines of sulfurizing and desulfurizing towers in a drying workshop, air exhaust pipelines of sulfurizing and desulfurizing towers in a drying kiln, a drying kiln, an auxiliary heat waste extracting air pipe and a main heat waste extracting air pipe. The wet sludge is conveyed into the wet sewage sludge bin after being gathered, a mud conveying pipe arranged in the wet sewage sludge bin is connected with the sludge dryer, at the same time, the waste heat from the cooling section of the roasting kiln is led into the sludge dryer through the air intake pipeline. The center of the upper part of the roasting kiln is provided with the main heat waste extracting air pipe, both sides of the upper part of the roasting kiln are provided with the auxiliary heat waste extracting air pipe, the roasting kiln and the drying kiln are in parallel arranged, the cyclone dust collector is provided with the induced draft fan, the spiral conveyer is connected with the dry sludge bin, and the induced draft fan is connected with the desulfurizing tower. The process is simple, low in investment, high in reliability and convenient to operate.

Description

technical field [0001] The invention relates to a tunnel kiln ventilation design technology for a sintered brick production line in a brick factory and a sludge drying technology using waste heat, in particular to a brick making process using waste heat drying sludge in a tunnel kiln for a sintered brick production line. Background technique [0002] At present, a large amount of sludge has not been properly treated and disposed in a timely manner, which has become a heavy burden for sewage treatment plants, papermaking and printing and dyeing plants. In addition to ash, sludge also contains a large amount of organic matter, germs, parasites and toxic and harmful substances, and is often accompanied by stench, and its random discharge will cause secondary pollution. At the same time, sludge also contains a large number of usable components. If it can be used reasonably, it will not only turn waste into wealth, but also increase economic benefits. Therefore, finding an effec...

AI Technical Summary

Problems solved by technology

For the effective treatment of sludge and the effective utilization of tunnel kiln waste heat, the best solution has been found, which can realize the resource utilization of kiln heat and garbage, and effectively solve the problems of resource waste and environmental pollution

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