Apparatus and method for processing wastes

A technology for processing equipment and processing methods, applied in cement production, clinker production, coke ovens, etc., can solve problems such as low oxygen content, difficult combustion control, adverse effects of calciner combustion, etc., to reduce costs and improve energy utilization efficiency Effect

Inactive Publication Date: 2009-05-20
KAWASAKI HEAVY IND LTD +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So the durability of the incineration area itself is problematic
In addition, since waste is conveyed and stirred by rotation, it is considered that there is also a problem of difficulty in combustion control.
Moreover, in the case of direct combustion in the incineration area, unburned solid objects are likely to occur, and the oxygen content in the gas in the calciner into which it is injected is low, so there are also problems such as easy to cause adverse effects on the combustion of the calciner.

Method used

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  • Apparatus and method for processing wastes
  • Apparatus and method for processing wastes
  • Apparatus and method for processing wastes

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Embodiment Construction

[0047] Embodiments of the waste treatment facility and the waste treatment method of the present invention will be described below with reference to the drawings. Fig. 1 is a block diagram showing an embodiment of the waste treatment facility of the present invention. Among the arrows representing the flow in the figure, the single-line arrow mainly indicates the flow of gas, and the double-line arrow mainly indicates the flow of solid.

[0048] The waste treatment facility 1 shown in FIG. 1 utilizes waste heat generated by the cement production plant 2 and uses part of the treated waste as cement raw material for the cement production plant 2 . FIG. 1 shows a fluidized-bed gasifier 3 constituting a part of a waste treatment facility 1 . The fluidized-bed gasification furnace 3 is a pyrolysis furnace, and the waste charged therein is thermally decomposed and treated hygienically. And in this gasifier 3, pyrolysis gas is generated. Gasifiers produce less gas than direct fire...

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Abstract

The invention provides waste processing equipment which is expected for improving utilization of heat energy and lowering equipment cost by means of a cement manufacturing process. The method for solving the problems is the waste processing equipment of the invention which is provided with a gasifier (3) for heating the waste and enabling the waste to generate thermal decomposition gas, a preheater (6) for preheating cement stone of cement manufacturing complete plant (2), a calcinator (7), a welding furnace (8), and a clinker cooler (9), and a gas delivery passage (11) for delivering particle-shaped carbon and ash and pyrolytic eumatolytic gas generated from the gasifier (3) to at least one of the calcinator (7) and the welding furnace (8).

Description

technical field [0001] The invention relates to waste treatment equipment and a treatment method. In more detail, it relates to a treatment apparatus and a treatment method utilizing a part of the cement manufacturing process in hygienically disposing of various wastes including, for example, kitchen waste, plastics, wood waste, paper scraps, and the like. Background technique [0002] Regarding the waste treatment by the cement manufacturing process, for example, the technique disclosed in Patent Document 1 is known. In this technique, an incineration area for incinerating waste is installed upstream of a calciner for calcining cement raw materials in a cement manufacturing plant. Moreover, the high-temperature waste gas generated in the incineration area should be used for calcination of cement raw materials in the calciner. On the other hand, slag or the like generated in the incineration area is introduced into a calciner or a kiln as a cement raw material. [0003] D...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24C04B7/43C10B53/00
CPCY02P40/10Y02P40/121
Inventor 林敏和片畑正加藤定史桥元笃志利弘淳市谷昇
Owner KAWASAKI HEAVY IND LTD
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