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

A technology of organic waste and high moisture content, applied in dewatering/drying/concentrating sludge treatment, combustion methods, heating devices, etc., can solve the problems of reduced sintering capacity of cement clinker, lower temperature, and difficulty in economical operation, etc. Achieving efficient and effective reuse

Active Publication Date: 2009-09-09
SUMITOMO OSAKA CEMENT CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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.

Method used

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

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no. 1 approach

[0105] Fig. 1 is a schematic diagram showing a cement burning facility equipped with a high-moisture-content organic waste treatment device according to a first embodiment of the present invention. An example of a treatment device that dries the organic sludge to be converted into fuel by using high-temperature gas or extracted high-temperature gas, and burns the obtained dried organic sludge using cement burning equipment.

[0106] Among the figure, 21 is the treatment device of organic sludge, which is composed of the following parts: heat exchanger (heat exchange device) 22, exhaust gas (high temperature gas) and steam separated from the suspension preheater 2 of cement burning equipment heat exchange between (heat medium); drier (drying treatment device) 23, use the superheated steam (heat medium) after the heat exchange to dry the organic sludge to form dry organic sludge; deodorizer (deodorizer) Processing device) 24, deodorizing superheated steam; hopper 25, storing dry...

no. 2 approach

[0143] Fig. 2 is a schematic view showing a cement burning facility equipped with an organic sludge treatment device 41 according to a second embodiment of the present invention. The difference between the organic sludge treatment device 41 and the organic sludge treatment device 21 according to the first embodiment is that , replace the high-temperature gas extraction pipe 26 and the exhaust pipe 27 with the high-temperature gas extraction pipeline 42 and the high-temperature gas exhaust pipeline 43, and use the exhaust pipe from the downstream side of the exhaust fan (IDF) 9 of the suspension preheater 2 The 12-split high-temperature exhaust gas is used as high-temperature gas for drying by the dryer 23 .

[0144] In this organic sludge treatment device 41 , the high-temperature exhaust gas used as a heat source for drying is branched from the exhaust pipe 12 of the suspension preheater 2 and sent to the heat exchanger 22 through the high-temperature gas suction line 42 . Th...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/06C02F11/12C04B7/38C04B7/44F26B3/06
CPCF23G5/04F26B23/001F26B25/005F23G2206/201C04B7/4407F26B2200/18C02F11/06C04B2290/20F26B23/028C02F11/14Y02W10/40Y02E20/30Y02P40/121Y02P70/10C04B7/40C02F11/13
Inventor 齐藤兼广冈幸夫冈田丰国西健史片冈智之野村干雄
Owner SUMITOMO OSAKA CEMENT CO LTD
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