JP2584024Y2 - Garbage incinerator - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small refuse incinerator suitable mainly for home use.

[0002]

2. Description of the Related Art In small incinerators, odors, soot,
In order to prevent the emission of smoke and the like to the outside of the furnace, a device that promotes combustion by using a purification catalyst has been conventionally known (for example, JP-A-1-281315). In this conventional technique, an electric heater is provided at the center of a processing container provided in a combustion furnace, and a first purification catalyst is provided around an outer periphery of the processing container,
A second purification catalyst and an electric heater are provided in the exhaust passage, and the air is forcedly ventilated to the center of the processing vessel by a blower to burn the combustion gas, and the combustion gas flows downward in the first purification catalyst and upward in the second purification catalyst. To be discharged.

In this prior art, since the first purification catalyst is outside the processing vessel, it takes a long time to be heated to the reaction temperature, and it is easy to radiate heat from the outer periphery. In such a case, it is difficult to maintain the reaction temperature. Moreover,
The use of an electric heater and a blower complicates the structure, and the use of electric power is disadvantageous in terms of location restrictions.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an apparatus which has a simple structure, in which the temperature of the purification catalyst quickly rises to the reaction temperature, the reaction temperature is easily maintained, and the structure is simple.

[0005]

Means for Solving the Problems In the present invention, there is provided a refuse incinerator provided with an air inlet and a roster at a lower portion of a combustion chamber, and an exhaust port at an upper portion thereof. And a preheater installed below the purification catalyst.

[0006]

Since the above-mentioned means is provided, by operating the preliminary heater, the purification catalyst immediately thereabove is rapidly heated, and the refuse in the combustion chamber also starts burning, and a catalytic reaction occurs, and combustion close to complete combustion is performed. Done.

[0007]

An embodiment will be described below with reference to the drawings. 1 and 2, reference numeral 1 denotes an incinerator, 2 denotes a hollow drum-shaped main body, which comprises a stainless steel side wall 3, a bottom wall 4, and a top wall 5, and a chimney 7 is connected to the top wall 5. In the lower part of the main body 2, a roster 8 is supported by a projection 9 to partition a combustion chamber 10 and an ash sump 11, and intake ports 12 and 13 are opened in front of both parts.
A grid-like opening / closing lid 1 having handles 14a and 15a
4, 15 are hinged. A refuse inlet 16 is opened in the top wall 5, and an opening / closing lid 17 having a handle 17a is hinged.

[0008] A hollow conical purifying catalyst 18 is mounted on the upper surface of the roaster 8. The purifying catalyst has a net-like or lattice-like carrier mainly holding platinum, palladium or the like which promotes an oxidizing action. It is a thing. A preheating burner 19 is inserted in the ash sump 11 below the roast 8. The preheating burner 19 is obtained by immersing a wick 19b in a kerosene container 19a, is inserted through the opening 13, and is taken out or left as it is after the preheating.

A purification catalyst 20 having a ventilation hole is mounted on the chimney 7, and a preheating burner 21 is provided below the purification catalyst. The preheating burner 20 has a combustion part 21a having a light core in a ring shape and a vent hole 20b in the center.
And inserted from the opening / closing lid 23 to receive
4.

[0010] With the above structure, the open / close lid 17 is opened, the refuse A is thrown into the combustion chamber 10, and the open / close lid 17 is closed.
When the upper and lower preheating burners 19 and 21 are ignited, the catalysts 18 and 20 are heated by the preheating burners, and a part of the refuse A starts burning. When the surface temperature of the catalysts 18 and 20 reaches about 150 ° C., a catalytic reaction occurs. Thus, the combustion is promoted in the lower portion in contact with the catalyst 18, and the temperature becomes high, and the combustion is further promoted. The upper catalyst 20 oxidizes unburned components, soot, smoke and the like in the exhaust gas to make them odorless and harmless. Then, when the amount of dust in the combustion chamber 10 decreases, the dust is replenished from the inlet 16.

During the combustion of the waste, not only the combustible waste itself, but also components such as HC and CO generated during the combustion, and soot and smoke components, are burned and rendered harmless by the purification catalyst. Since the catalyst can be activated and used at a low temperature of about 150 ° C. as described above, it can be used for many years without generation or deterioration of NOx.

Each of the catalysts 18, 20 is heated by the auxiliary burner at a short distance from below and comes into direct contact with the flame or flame during combustion. Since it has a conical shape, the contact area with the combustion part is large, and the catalytic action is actively performed.

In the above embodiment, the purifying catalysts 18, 20
Kerosene burner is used as a preliminary heater for
A gas burner can be used, in which case the fuel gas container is located outside the furnace. In addition, acetylene gas can be generated from carbide and water to act on the burner of the preliminary heater, or the purifying catalyst can be disposably heated by heat generated by an oxidation reaction of iron powder.

[0014]

[Effects of the Invention] As described above, in the present invention, the catalyst is placed on the roast and the catalyst is heated from below by a preheating burner at a short distance. Since the catalyst is in direct contact with the catalyst, the catalyst can be easily maintained at the reaction temperature, and a good combustion state can be maintained. In addition, since an electric heater, a blower, and the like are not used, there are advantages that the structure is simple, there is no failure, the device can be manufactured at low cost, and the device can be used even in a place without power equipment.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an embodiment.

FIG. 2 is a front view of the same.

[Explanation of symbols]

2 Body 7 Chimney 8 Rostor
Reference Signs List 10 Combustion chamber 11 Ash reservoir 18, 20 Catalyst 19,
21 Preheating burner

Claims (1)

(57) [Scope of request for utility model registration] In a refuse incinerator provided with an air inlet and a roster at a lower part of a combustion chamber and an exhaust port at an upper part, a purifying catalyst having air permeability mounted on the roaster and a lower part of the purifying catalyst are installed. A refuse incinerator comprising a preheater.