Method of disposing of organic waste of high water content and disposal apparatus therefor

Abstract

The present invention discloses a method of disposing of an organic waste of high water content, and disposal apparatus therefor, with which effective utilization of the organic waste of high water content as fuel can be attained by drying the same with the use of cement calcination equipment, and with which the operation efficiency of cement calcination equipment can be enhanced without the danger of influences on the operation of the cement calcination equipment. The method of disposing of an organic waste of high water content comprises the steps of carrying out by means of heat exchanger (22) a heat exchange between superheated steam and exhaust gas separated by cyclone (2b) of suspension preheater (2) and not only introducing the superheated steam of high temperature after the heat exchange in dryer (23) to thereby dry any organic sludge into a dried organic waste but also carrying out once more by means of the heat exchanger (22) a heat exchange of the superheated steam after the drying to thereby attain circulatory use thereof in the drying of organic sludge; and feeding the resultant dried organic sludge to calciner (3) as fuel and combusting the same.

Description

technical field [0001] The present invention relates to a treatment method and a treatment device for high-moisture organic waste, and more specifically, relates to drying the high-moisture organic waste by using cement burning equipment, so that the dried organic waste can be used as cement burning equipment. The efficient utilization of fuel for the cement burning equipment, and the high moisture content organic waste that can further improve the operation efficiency of the cement burning equipment without causing adverse effects on the operation of the cement burning equipment despite the use of the gas extracted from the cement burning equipment Treatment methods and treatment devices. [0002] This application claims priority based on Japanese Patent Application No. 2006-300605 for which it applied in Japan on November 6, 2006, and uses the content here. Background technique [0003] Conventionally, combustible wastes such as waste tires and waste plastics among organi...

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Problems solved by technology

[0007] Moreover, in the above-mentioned method of directly introducing organic water-containing sludge into a rotary kiln for incineration, there are following problems: due to the evaporation of moisture in the water-containing sludge, the temperature of the raw material at the kiln tail part of the rotary kiln decreases, and the suspension preheats The sensible heat of the raw materials after heating and decarbonation in the roaster and roaster is reduced, or the temperature of the clinker-like zone (kiln firing zone) of cement raw materials is lowered, etc., the cement clinker firing of cement firing equipment Significantly reduced capacity

In addition, the calorific value per unit of clinker and power consumption increase during cement clinker firing, so it may be difficult to operate economically, etc.

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