JP3088233U - A high-temperature incinerator made by combining alumina-based refractory bricks, tuff, and reinforced concrete. - Google Patents

Abstract

(57) [Summary] (with revision) [Problem] The incineration temperature of waste can be increased to 800 ° C or more.
An incinerator having a low maintenance cost and a long life is used. An alumina-based refractory brick 1 which does not melt even at 1000 ° C. or higher is used. Tuff 2 having excellent heat insulation properties is used as a material for blocking high temperatures of bricks.
Reinforced concrete 3 does not become hot, so there is no decrease in strength.

Description

[Detailed description of the invention]

[Technical field belonging to the invention] Incinerator of waste incineration facility

[Prior art] The following guidance is provided by the government regarding incineration of waste. In order to reduce the amount of dioxin discharged from the incineration facility, an incinerator that can raise the combustion temperature of waste to 800 ° C or higher will be installed. To maintain a combustion temperature of 800 ° C, the incinerator must be able to withstand high temperatures of 1000 ° C or more. General incinerators are furnaces with a double structure using iron plates, which are cooled by passing water between the iron plates. Depending on the cooling method, maintaining the combustion temperature above 1000 ° C also complicates the entire incineration facility. In addition, rust is generated in the cooling water, and corrosion progresses, so the service life tends to be shorter than the initial planned life.

[Problem to be solved by the invention] The drawing and Fig. 1 show the invention as a method of maintaining the combustion temperature of 1000 ° C or higher without using cooling water. Alumina-based refractory bricks do not melt even at 1000 ° C. or higher. In addition, it has the advantage that it is easy to keep the furnace temperature constant because it is difficult to cool down due to its large heat storage. On the other hand, when viewed as a structure, bricks alone are vulnerable to vibration.

[Means for solving the problems] Reinforced concrete has excellent strength against vibration, but at high temperatures it breaks and its strength is reduced. Therefore, between the refractory metal and the reinforced concrete, a tuff with excellent heat insulation is used as a material to block the high temperature of the refractory brick. Tuff hardly changes in volume from high temperature to low temperature, so it does not expand at high temperature and push up adjacent objects. Therefore, reinforced concrete does not become hot, so there is no decrease in strength.

[Example] Since August 2001, it has been operating as an industrial waste incinerator.

[Effect of the invention] The firing temperature is 1000-1500 ° C, and the results are in line with the idea.

[Brief description of the drawings]

Fig. 1 Cross section of incinerator

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] March 27, 2002 (2002.3.2.
7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (2)

[Utility model registration claims] 1. A high-temperature incinerator manufactured by combining alumina-based refractory bricks, tuff, and reinforced concrete. 2. The inside of the incinerator uses alumina-based refractory bricks. As a material that blocks high temperatures of the refractory brick, tuff having excellent heat insulation properties or a material having the same performance as tuff is used. The outside uses strong reinforced concrete.