JP2007078337A - Auxiliary combustion device for incinerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of burning completely an inflammable object remaining in a residue in waste incineration equipment. <P>SOLUTION: Flame of a burner can be blown into a portion with the incineration residue staying in the vicinity of the bottom of an incinerator by a metal cylinder with a closed terminal, and holes are formed in respective important points of the cylinder to blow the flame. A spiral metal plate is attached to the outer circumference of the cylinder, and the cylinder can be rotated optionally in right and left directions. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an auxiliary combustion apparatus for an incinerator that incinerates waste or the like.

  Small and medium-sized waste incinerators are simple box-shaped units that have been used for a long time, and those that simply put waste into fire and emit smoke from the chimney are harmful substances such as dioxins due to incomplete combustion. In addition, smoke and soot are released in large quantities into the atmosphere, making it impossible to use from the viewpoint of environmental pollution.

  Various furnaces that can add a secondary combustion furnace, attach a filter, or completely burn waste can be proposed, but all of them are structurally complex and large and expensive.

  The incinerator with built-in auxiliary cylinder previously invented by us: Japanese Patent Application No. 2004-134851 is an incinerator capable of completely combusting waste, and in the case of waste having a low bulk density and containing a lot of combustibles, an appropriate air blow However, in the case of waste with a high bulk density and a relatively low combustible content, the residue of incomplete combustion will be at the bottom. It took a long time to accumulate and to burn completely.

  Provided is a method for completely burning a combustible material remaining in a waste residue having a high bulk density and a relatively low combustible content in a short time.

Means for Solving the Invention

  If you try to incinerate waste products such as clay mineral powder and cellulose, which are made by mixing and compressing, the bulk density is high and the combustible content is relatively low, Even if it burns from the surface to a certain extent, it is difficult for the combustion to progress to the inside, and if there is unburned combustible material remaining in the residue, it will break through it and put a flame there It was found that it can be completely burned by blowing.

  Therefore, by placing a metal plate spirally attached to the outer periphery of a metal cylinder at the bottom of the incinerator where the residue accumulates, rotating the metal plate left and right as appropriate, the metal plate crushes the residue, and the metal plate Burner flames are blown into the cylinder, and the residue is completely burned by the flames ejected from the holes drilled in the cylinders where necessary. Moreover, if this pipe | tube is rotated in one direction, the crushed residue like a screw conveyor can be sent in one direction.

The invention's effect

  By using the incinerator auxiliary combustor of the present invention, it is possible to crush waste residues that are hardened and hard to progress to the inside, and can be heated with a burner flame, so they can be discarded efficiently in a short time. Things can be incinerated.

  A cylinder with a metal end closed near the bottom of the incinerator, where burner flames are blown into the cylinder from the outside. Install the ones with holes. A spiral metal plate is attached to the outer periphery of the cylinder, and the cylinder can be rotated clockwise and counterclockwise in any direction by an external motor.

  An incinerator auxiliary combustion apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a conceptual diagram showing an incinerator auxiliary combustion apparatus installed at the bottom of an incinerator. A spiral metal plate 3 is attached to the outer periphery of the cylinder, and the perforated cylinder 2 can be rotated clockwise and counterclockwise by a motor 5 directly connected to a rotating shaft 4. Further, the flame of the burner 7 can be blown from the opposite blowing port 6.

  The function of this apparatus is to completely incinerate the incomplete combustion residue accumulated at the bottom of the incinerator. When the perforated cylinder 2 is rotated clockwise and counterclockwise by the motor, the residue is crushed by the spiral metal plate 3, and the flame blown from the burner is ejected from the nozzle 1 to the outside of the cylinder and remains unburned. It works to burn completely.

  When the residue is burned and turned into ash, the tube is rotated in one direction and sent to the right in the figure. Ashes accumulate on the right outlet lid 8, and when the weight reaches a certain level, the weight Overcoming the weight of 9 and falling down. This series of operations may be incorporated in the sequencer in advance.

  As described above, according to the incinerator auxiliary combustor of the present invention, it is possible to incinerate the residue that has stagnated in the bottom of the incinerator due to incomplete combustion. Efficiency can be increased.

The conceptual diagram which shows the bottom part of the incinerator containing the auxiliary combustion apparatus for incinerators of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Jet nozzle 2 Perforated cylinder 3 Spiral metal plate 4 Rotating shaft 5 Motor 6 Blowing port 7 Burner 8 Outlet lid 9 Weight

Claims (4)

  A metal cylinder with a diameter of 15 cm and a length of 50 cm to 1 m, closed near the bottom of the incinerator, with a flame or air to blow the flame or air from outside. There is a hole for jetting, a burner is set at the entrance of the cylinder, and a spiral metal plate is attached to the outer periphery of the cylinder. Rotating around to crush the residue accumulated at the bottom, send and return the residue to complete combustion, and further rotate it in one direction to send out the residue like a screw conveyor An incinerator auxiliary combustion device characterized by having both   The wall of the incinerator on the extension line of the metal cylinder mentioned above has an outlet with a hinged lid attached. When the metal cylinder is rotated and the residue is sent out, the residue is there. 2. The incinerator auxiliary combustion apparatus according to claim 1, wherein the lid is automatically opened and the residue automatically falls to drop out of the lid.   The floor on the extension line of the above-mentioned metal cylinder has an outlet lid that opens partly under a certain weight, and the metal cylinder is rotated to send out the residue. 2. The incinerator auxiliary burner according to claim 1, wherein when the slag accumulates there and the weight exceeds a certain level, the lid is automatically opened so that the residue falls outside.   A number of metal rods of an appropriate length are attached substantially vertically from the surface of the cylinder in order to crush the residue around the metal cylinder. The incinerator auxiliary burner as described.

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