JPS5911805B2 - incinerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an incinerator that incinerates materials to be treated such as municipal garbage and various industrial wastes, and more specifically, the present invention relates to an incinerator that incinerates materials to be treated such as municipal garbage and various industrial wastes. An incinerator configured to be conveyed by a driven and rotated hearth to a combustion space arranged on the rotation center side thereof, and a burner disposed in the combustion space that spouts flame downward along the rotation axis. Regarding.

Such an incinerator uses a burner that burns downward at the center of the hearth to sequentially incinerate the materials that are transported toward the center of the hearth as the hearth rotates, and the incinerated ash or molten material is transferred to the center of the hearth. The burner directs its ejected flame toward the hearth opening.

In other words, the object to be treated is incinerated by the radiant energy of the burner flame.

The reason for radiant combustion of the object to be treated is that the ejection speed of the burner flame is high, and if this flame is directly blown onto the object to be treated, the combustion efficiency will be high, but on the other hand, the flame will burn the object to be treated by radiation. At present, radiant combustion is used because there is a risk of blowing away the material and ejecting the material unburned from the hearth opening, which inevitably lowers the combustion efficiency.

An object of the present invention is to significantly improve the incineration capacity by suppressing the scattering of the materials to be treated, while employing a form of direct combustion with high combustion efficiency.

That is, the first invention provides the incinerator described above, in which a member is provided in front of the burner to spread the flame over the entire circumference in the horizontal direction, and a member is provided between the flame spreading member and the hearth. , is characterized by forming an opening through which the object to be processed passes.

In other words, the burner flame is made to collide with the diffusion member to attenuate the energy of the ejected flame, and the material to be treated is essentially directly burned by the flame directed toward the outer circumferential direction, thereby attenuating the kinetic energy. As a result, combustion efficiency can be improved while suppressing blowing away of the material to be treated, and a remarkable improvement in incineration capacity can be achieved.

When the flame diffusion member is provided in this way, the internal pressure on the side of the combustion space increases with this member as a boundary, and it is conceivable that the object to be processed existing in the opening for passage of the object to be processed is blown away due to the pressure difference.

An object of the second invention is to solve this problem.

That is, as described in claim 3, by providing the flame diffusion member with a through hole through which a portion of the flame from the burner directly passes, a rain space is created with the flame diffusion member as a border. The pressure difference can be made extremely small or the same pressure, and it is possible to suppress the blowing away of the processed material due to the pressure difference.

Next, embodiments of the present invention will be described in detail based on illustrative drawings.

The incinerator is comprised of a storage and supply section 1 for materials to be treated, a combustion chamber 2, and a separator 3 into which the incinerated melt and combustion exhaust gas from the combustion chamber 2 are introduced and separated and taken out separately.

The storage/supply section 1 stores the processed material supplied through the hopper 4 and the damper 5, and allows the processed material to take a downward supply path by falling under its own weight, and has an annular space formed by an annular inner wall 6 and an outer wall I. The outer wall 7 of this consists of
The lower annular wall body 7a is configured to be freely rotatable around its annular vertical axis.

The combustion chamber 2 connected to the lower part of the descending supply path of the storage supply section 1 includes a hearth 8 that is driven and rotated around the vertical axis and relative to the wall 7a, and a hearth 80 that rotates around the axis of rotation of the hearth 80. The hearth 8 is composed of a combustion space having a downward combustion burner 9 that ejects flames downward along the wick, and the hearth 8 has an upper surface that is sloped downward toward the center of rotation. An opening 10 for dropping the incinerated material is formed in the center,
By rotating the hearth 80 times, the material to be treated from the descending supply path is transported to the combustion space on the center side, and the material to be incinerated is supplied to the separator 3 through the opening 10.

In front of the burner 9, there is a member 11 for spreading the burner flame ejected toward the opening 10 over the entire circumference in the horizontal direction, and a member 11 for passing the processed material between it and the hearth 8. It is provided to form an opening 12.

This flame diffusion member 11 has a flame diffusion surface in the shape of a conical surface with a downward slope, and is provided with a through hole 13 through which a portion of the flame ejected from the burner 9 directly passes.

The opening shape, opening axis, or number of openings of the through hole 13 can be selected as appropriate. For example, as shown in the figure, the through hole 13 may be bored in alignment with the flame ejection axis, or a plurality of through holes 13 may be formed around the flame ejection axis. Various modifications can be made, such as drilling the holes at different intervals.

The separator 3 has a cooling water tank 14 for cooling and solidifying the combustion melt, and an exhaust gas discharge pipe 15, and the water tank 14 includes:
It is located directly below the molten material falling opening 10 which is opened at the center of the hearth 8, and extends to the outside of the apparatus in a water-sealed state, and is equipped with a basket conveyor 16 to collect the cooled and solidified material. The container 17 is configured to collect the water continuously.

[Brief explanation of the drawing]

The drawing is a schematic longitudinal sectional side view of the entire incinerator illustrating an embodiment of the present invention. 8... Hearth, 9... Burner, 11.
...Flame diffusion member, 12...Opening, 13
......Through hole.

Claims (1)

[Scope of Claims] 1. A hearth 8 driven and rotated around a vertical axis is configured to transport the object to be processed from an annular downward supply path to a combustion space arranged on the rotation center side thereof, An incinerator in which a burner 9 that spews flame downward along the rotational axis is provided in the combustion space, and a member is provided in front of the burner 9 to spread the flame horizontally over the entire circumference. 11, and the flame diffusion member 11 and the hearth 8
An incinerator characterized in that an opening 12 is formed between the incinerator and the opening 12 for passing the material to be processed. 2. The incinerator according to claim 1, wherein the flame diffusion member 11 has a downwardly expanding conical shape or a flame diffusion surface having a similar shape. 3. The processing material from the annular downward supply path is transported by the hearth 8, which is driven and rotated around the vertical axis, to the combustion space arranged on the rotation center side, and the workpiece is transported along the rotation axis. The incinerator is provided with a burner 9 in the combustion space that spouts flame downward, and a member 11 is provided in front of the burner 9 to spread the flame horizontally over the entire circumference. Flame diffusion member 11 and the hearth 8
An opening 12 for passing the object to be treated can be formed between the burner 9 and a through hole 13 for directly passing a part of the flame from the burner 9 through the flame diffusion member 11. An incinerator characterized by certain things.