JP2660643B2 - Air supply nozzle for incinerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air supply nozzle for an incinerator used for incinerating waste tires and the like.

[0002]

2. Description of the Related Art As a conventional air supply nozzle for an incinerator of this type, for example, as shown in FIGS. It is disposed in the middle of a gas passage b connecting the chamber and a blower pipe c connected to the blower at the mouth of the air supply nozzle body a, and a plurality of ejection nozzles d are provided on the outer peripheral surface side of the air supply nozzle body a. Those that are individually arranged are known.

[0003] Thus, air is sent from the blower into the air supply nozzle body a through the blower pipe c, and this air is blown out and supplied from the plurality of blowout nozzle bodies d toward the secondary combustion chamber. .

[0004]

However, in the case of the above-mentioned conventional structure, the air supply nozzle body a is formed in a vase with a bottom, and is located in the middle of the gas passage b connecting the primary combustion chamber and the secondary combustion chamber. Therefore, the combustion gas G passing from the primary combustion chamber to the secondary combustion chamber can pass only through the gap R between the outer peripheral surface side of the supply nozzle body a and the inner surface of the gas passage b. Yes, the air supply nozzle body a impedes the passage of the combustion gas G, and the passage of the combustion gas G from the primary combustion chamber to the secondary combustion chamber becomes unsmooth and causes incomplete combustion, and the combustion efficiency, There is a disadvantage that the combustion effect may be reduced.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve such inconvenience, and the gist of the present invention is to provide a gas passage connecting a primary combustion chamber and a secondary combustion chamber. the air sent from the blower be those ejected supplied to the secondary combustion chamber side, the gas passing in the middle of the gas passage
Supply that can be arranged with a gas passage gap between it and the inner surface of the overpass
Forming a gas nozzle member, the air supply nozzle body is formed in a substantially circular cylindrical shape to have a passage hole which passes through the combustion gas in the central portion
And on the inner peripheral surface side and outer peripheral surface side of the air supply nozzle body.
In incinerator air supply nozzle, characterized in that the jet nozzle capable jetting is plural protruding air air supply nozzle body to the gas passage path.

[0006]

The combustion gas passing from the primary combustion chamber to the secondary combustion chamber is supplied to the gas passing between the outer peripheral surface of the supply nozzle body and the inner surface of the gas passage through the passage hole located in the central portion of the supply nozzle body. The air that passes through both portions of the passage gap and is sent from the blower is ejected toward the secondary combustion chamber from a plurality of ejection nozzles disposed on the inner peripheral surface and the outer peripheral surface of the air supply nozzle body. Become.

[0007]

1 to 5 show an embodiment in which the present invention is applied to an incinerator for waste tires, wherein 1 is a primary combustion section, 2 is a secondary combustion section, and in this case, the primary combustion section 1 comprises: A base member 3, an intermediate tube 4, and a lid 5 are assembled in a stacked state, and a bottom plate 7 having a plurality of through holes 6 is provided at the bottom of the base tube 3. A scoop 8 for scraping out the combustion residue is provided below the side of the base cylinder 3, and the base 3 is provided with an inner wall material 9.
To form a double partition structure, and cooling water 1
0, and external air is sent from the primary combustion blower (not shown) through the lower opening portion 11 between the bottom plate 7 and the inner bottom surface of the base tube portion 3, and the air is used as a plate-like bottom plate. 7, the fuel is fed into the primary combustion chamber F through the through holes 6, and tar and the like generated by the combustion of the waste tire W are dropped downward from the through holes 6 in the bottom plate 7.

The intermediate cylindrical portion 4 is formed in a cylindrical shape, and is provided with a bearing portion 12 provided on an upper portion, a turning shaft 13 bearing on the bearing portion 12, and a lid portion 5 attached to the turning shaft 13.

Further, in this case, the secondary combustion section 2 is
4. The three members of the intermediate cylinder section 15 and the chimney section 16 are assembled and assembled in a stacked state, the interior thereof is formed in the secondary combustion chamber M, and the base cylinder section 14 is formed in a double partition structure as described above.
Cooling water is stored between the partition walls.

Reference numeral 17 denotes an air supply nozzle body which is made of metal and has a substantially annular tube shape having a through hole N through which a combustion gas G passes in a central portion. Three ejection nozzles 18 are attached to the peripheral surface side and three ejection nozzles 19 are attached to the outer peripheral surface side, and the air supply nozzle body 17 is formed with a connection port 21 connected to the blower 20. .

Reference numeral 22 denotes a gas passage which is a passage connecting the primary combustion chamber F and the secondary combustion chamber M. The gas supply passage 22 is provided with the air supply nozzle body 17 on the inner surface of the gas passage 22. And the base cylinder portion 2
A blower 20 is disposed on the side surface of the
0, and the air sent from the blower 20 is directed from the three ejection nozzles 18 on the inner peripheral surface side and the three ejection nozzles 19 on the outer peripheral surface side to the secondary combustion chamber M side. It is configured to squirt.

In this case, cookers 24 and 25 through which a combustion burner (not shown) is inserted are formed in the lid of the scraper 8 and the gas passage 22, and an oil burner is inserted through the cooker 24 so that the inside of the primary combustion chamber F is formed. Ignited and burnt the waste tire W, remove the oil burner after the start of combustion, insert the oil burner into the cooking port 25 to ignite and burn in the secondary combustion chamber M, remove the oil burner after ignition, and remove the waste tire. W itself burns.

In this embodiment, since the cover 5 of the primary combustion section 1 is turned, the waste tire W is placed in the primary combustion chamber F.
And the waste tire W in the primary combustion chamber F is ignited and burned by inserting an oil burner into the cooking port 24, and the combustion gas G after the primary combustion passes through the gas passage 22 and passes through the secondary combustion section 2. The secondary combustion chamber M, the secondary combustion is performed in the secondary combustion chamber M, and the smoke is exhausted from the chimney 16, and the waste tire W is incinerated.

At this time, from the primary combustion chamber F to the secondary combustion chamber M
The combustion gas G passing through the gas inlet and outlet N and the gas passage gap L existing between the outer peripheral surface of the air supply nozzle body 17 and the inner surface of the gas passage 22 in the central portion of the air supply nozzle body. As a result, the fluid passing resistance can be reduced accordingly and the smooth passage of the combustion gas G becomes possible, and the air A sent from the blower 20 passes through the inside of the air supply nozzle body 17 and the inner peripheral surface side and the outer peripheral surface. Are ejected from the plurality of ejection nozzles 18 and 19 disposed on the side to the secondary combustion chamber M side, so that the air is ejected from both the inside and the outside to supply air to the secondary combustion chamber M side. Is performed well, and the combustion state in the secondary combustion chamber M can be improved.

The present invention is not limited to the above embodiment, but can be applied to other incinerators and incineration structures other than the incinerator for the waste tire W. Is designed to be appropriately changed.

[0016]

As described above, the present invention provides a primary combustion chamber and a secondary combustion chamber.
Installed in the gas passage connecting the combustion chamber and the blower
The blown air is blown out and supplied to the secondary combustion chamber.
In the middle of the gas passage, the inner surface of the gas passage
Form an air supply nozzle body that can be arranged with a gas passage gap between
The combustion gas passes through the central portion of the air supply nozzle body
It is formed in a substantially annular cylindrical shape having a through hole and
The air supply nozzle body is provided on the inner peripheral surface side and the outer peripheral surface side of the air supply nozzle body.
Multiple jet nozzles capable of jetting air inside the gas passage
Since the protruding portion is formed, the combustion gas passing from the primary combustion chamber to the secondary combustion chamber passes through the passage hole located in the central portion of the air supply nozzle body, the outer peripheral surface of the air supply nozzle body, and the inner surface of the gas passage. Between the two parts of the gas passage gap existing between them, the fluid passage resistance can be reduced accordingly and the smooth passage of the combustion gas becomes possible, and the air sent from the blower passes through the air supply nozzle body and passes through the inside. A plurality of ejection nozzles arranged on the peripheral surface and the outer peripheral surface are ejected toward the secondary combustion chamber from the plurality of ejection nozzles. The supply is performed favorably, and the combustion state in the secondary combustion chamber can be improved.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of the drawings]

FIG. 1 is an overall front view of an embodiment of the present invention.

FIG. 2 is a partial longitudinal sectional view of the embodiment shown in FIG.

FIG. 3 is a cross-sectional view of a main part of the embodiment shown in FIG.

FIG. 4 is a partial longitudinal sectional view of the embodiment shown in FIG.

FIG. 5 is a perspective view of a main part of the embodiment shown in FIG. 1;

FIG. 6 is a partial cross-sectional view of a conventional structure.

FIG. 7 is a partial longitudinal sectional view of the conventional structure shown in FIG.

[Explanation of symbols]

 Reference Signs List 17 air supply nozzle body 18 ejection nozzle 19 ejection nozzle 22 gas passage F primary combustion chamber M secondary combustion chamber N passage hole L gas passage gap

Claims (1)

(57) [Claims] 1. A gas passage, which is provided in a gas passage connecting a primary combustion chamber and a secondary combustion chamber, and blows and supplies air sent from a blower to the secondary combustion chamber. A gas passage gap between the gas passage and the inner surface of the gas passage.
Forming an air supply nozzle body that can be arranged by
Gas air supply nozzle body air on the inner peripheral surface side and the outer circumferential surface of the air supply nozzle body with is formed in a substantially circular cylindrical shape to have a passage hole which passes through the combustion gas in the central portion Passage
Incinerator air supply nozzle jettable jetting nozzle and said <br/> that are plurality protruded inside.