JP2007138122A - Small carbonizing furnace - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carbonizing apparatus of an organic material, having a small size and portability, capable of being arranged at a kitchen door of each house, a veranda of an apartment house, a street corner, storefront of a convenience store or the like, and capable of carrying out the treatment of a waste gas without smoke and without odor. <P>SOLUTION: The carbonizing furnace for carbonizing an organic waste charged from an opening and closing door by blowing superheated steam into a sealed furnace cavity having the opening and closing door at the upper part has a heater and a saturated steam-generator for forming the steam by heating with the heater, formed on the bottom face of the furnace body, a superheated steam-generator for forming the superheated steam by heating the steam with the heater, formed on the side face of the furnace body, and a heater for heating the waste gas, formed at a waste gas-discharging opening of the cavity. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a small carbonization device for organic matter such as garbage, and more particularly to a portable small carbonization device that can be placed in a home entrance, a veranda in an apartment, or each storefront in a town. .

It is already known to carbonize organic matter such as garbage and sludge using superheated steam.
In order to use superheated steam, it must first be made.
To produce superheated steam, it is necessary to first boil water to produce saturated steam, and then superheat the resulting saturated steam to produce superheated steam.
As disclosed in Patent Document 1, a conventional apparatus has a structure in which a saturated steam production apparatus, a steam superheater, and a carbonization furnace for blowing superheated steam are separate structures, the apparatus is enlarged, and the equipment cost is increased. There is a disadvantage that becomes extremely high.
Carbonization is extremely effective for preventing global warming, that is, for CO2 by fixing carbon as well as reducing the volume of waste. In addition, there is also an advantage that it can be effectively used as a soil conditioner or a humidity control agent as it is without harm. By placing this small carbonization device at the front of each household, the verandas of condominiums, street corners, convenience stores, etc., the volume of waste can be reduced directly and carbonized without smoke and odor.

JP 2000-63848 A

The present invention has been made in view of such problems, and its purpose is to be small and portable, and can be placed in a storefront such as a convenience store of each household, a veranda of an apartment, a street corner, a convenience store, etc., and an exhaust gas. Is to provide an organic carbonization device that can be processed smokeless and odorless.

Means to solve the problem

The above-mentioned problems related to the carbonization furnace can be solved by the carbonization furnace of the present invention having the following configuration. That is, the structure of the carbonization furnace of the present invention is
1. A carbonization furnace that blows superheated steam into a sealed furnace body cavity having an open / close door on the top to carbonize organic waste charged from the open / close door, and a heater and the A saturated steam generator heated and generated by a heater is provided on the side of the furnace body with a heater and a superheated steam generator heated and generated by the heater, and the exhaust gas is heated at the exhaust gas outlet of the cavity A small carbonization furnace comprising a heater.
2. The carbonization method characterized by heating the exhaust gas of said 1 to 750 to 900 degreeC.
3. In the furnace cavity described in 2 above, a carbonized material such as household waste is put in a metal mesh-shaped basket, carbonized, and the generated carbide is taken out while being placed in the metal mesh-shaped cage. A carbonization method characterized by the above.

The invention's effect

1. The carbonization furnace, saturated steam generator, and superheated steam generator are integrated into a compact unit that can be worn and can be directly carbonized at home.
2. The exhaust gas is odorless.

The structure of the carbonization furnace of the present invention and its function will be described with reference to the drawings.
FIG. 1 is an explanatory diagram of the structure of the present invention.

The carbonization furnace of the present invention has a structure in which the periphery and bottom surface of the furnace cavity are surrounded by a heat insulating material, and an organic waste to be carbonized is opened by opening an upper opening / closing door.
The organic waste is put in a mesh-shaped basket made of stainless steel net and put into the furnace cavity.
The organic waste to be input can be carbonized by adding organic waste such as food waste, leftover food, vegetable waste, food waste, etc., and organic waste discharged in daily life, and other organic waste as necessary. .

After throwing in organic waste, close the door and blow superheated steam into the furnace cavity.
Superheated steam is a heater provided at the bottom of the furnace body. First, saturated steam is produced, and then the saturated steam is heated by a heater disposed on the side of the furnace body to form superheated steam.
Water for producing saturated steam is supplied from a water tank provided outside the furnace body.

  The inside of the furnace cavity is heated by the blown superheated steam and the bottom and side heaters, and is heated to a temperature of about 400 to 500 ° C.

  In the cavity, the oxygen in the furnace is expelled by the injection of superheated steam, and the atmosphere is an oxygen-free superheated steam atmosphere.Therefore, the organic matter put into the furnace does not burn, and moisture and volatile non-organic substances Both components and organic components are evaporated, and some organic substances are thermally decomposed into gas. Non-pyrolytic components are carbonized into solid carbides.

The components of the exhaust gas consist of these moisture, volatile non-organic components, organic components and organic pyrolysis gas, and also contain combustible gas. Odor components are completely decomposed by heating and become odorless.
The heating temperature of the exhaust gas heater is preferably 750 ° C to 900 ° C. Below the lower limit, the odor component is not completely burned and decomposed, and the odor remains. Heating above the upper limit is uneconomical.

Organic waste carbonizes in about 90 minutes after charging.
Since the carbide remains in the cage, when the metal mesh cage is taken out of the furnace, the carbide can be taken out together with the cage. In addition, non-burning inorganic and metal components can be taken out together with the basket. The metal mesh cage may be made of a material such as stainless steel or iron as long as it is heat resistant.

The examples illustrate the invention.
Structure of carbonization furnace: structure of FIG. 1 Internal volume of furnace body cavity: about 0.14 m ³
Furnace size: 300mm diameter x 500mm height (can be carried by hand)
Furnace temperature: 450 ° C
Types of garbage: Lunch leftovers, bento containers, waste plastic containers for household use, vegetable scraps, silver paper, aluminum foil.
Put the above garbage in a stainless steel basket and put it in a carbonization furnace. Carbonization is completed in about 1.5 hours. After the carbonization, the stainless steel basket was taken out.
Organic garbage became 1/50 charcoal in volume. The residue is a little unburned silver paper and aluminum scrap. The charcoal could be used as a soil conditioner and an underfloor humidity control material. The exhaust gas was colorless and odorless.

As described above in detail, since the small carbonization furnace of the present invention can be easily carried by a person, any organic waste can be easily, conveniently, quickly, and odorless if it is organic waste. It can be carbonized and reduced in volume without generating waste, reducing waste collection costs, reducing waste disposal costs, and constructing large waste disposal facilities that are disliked by neighboring residents. It makes a contribution.

FIG. 1 is an explanatory view of the structure of the small carbonization furnace of the present invention.

Claims (3)

  A carbonization furnace that blows superheated steam into a sealed furnace body cavity having an open / close door on the top to carbonize organic waste charged from the open / close door, and a heater and the A saturated steam generator heated and generated by a heater is provided on the side of the furnace body with a heater and a superheated steam generator heated and generated by the heater, and the exhaust gas is heated at the exhaust gas outlet of the cavity A small carbonization furnace comprising a heater.   The carbonization method characterized by heating the exhaust gas of Claim 1 to 750 to 900 degreeC.   In the furnace body cavity according to claim 2, a carbonized material such as household waste is put in a metal mesh-shaped basket, carbonized, and the generated carbide is put in a metal mesh-shaped cage. The carbonization method characterized by taking out as it is.

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