JPH10318512A - Burner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a burner prevented from incomplete combustion caused by the film of a combustion residue, without the decrease of combustion efficiency at a long time use and can combust objects to be combusted at high efficiency always. SOLUTION: Objects to be combusted on a mounting plate 2 is combusted completely supplied with air for combustion from jet nozzles 14 and at the combustion, the combustion residue is blown out by high speed air jet on the surface of objects to be combusted to multiple directions from air agitating nozzles 13 arranged near to the object to be combusted. Therefore, any objects to be combusted can be combusted completely without the deterioration of the combustion efficiency by forming the film of the combustion residue, without the blocking of the jet nozzles 14 by the solidification of incomplete combustion gas and maintaining long operating life of it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion apparatus for burning various objects to be burned with high combustion efficiency.

[0002]

2. Description of the Related Art There are various types of incinerators to be incinerated, and incinerators for incineration are required to burn such various incinerators with high combustion efficiency. . Conventional incinerators of this type attempt to increase the combustion efficiency of incinerated materials simply by providing a large number of air holes at regular intervals on the furnace wall such as a cylindrical vertical or rectangular horizontal type toward the center of the furnace. It was of a structure.

[0003]

However, in this conventional incinerator, the combustion gas from the burnable material and the primary air from the primary air supply pipe are not sufficiently mixed.
Preferred combustion conditions are not obtained, especially when waste materials such as lubricating oils containing rubber materials, carbon particles, dust, fibers, etc. are used as burnable materials, and plastics and paper / wood chips that burn after melting. When incinerated materials that produce ash are mixed, the oil and molten surfaces are covered with a film of these contaminants, preventing the evaporation of oil and preventing complete combustion. When used, there is a problem that the combustion gas from the burned material solidifies on the pipe wall between the air supply ports, lowering the air supply efficiency and lowering the incineration capacity.

[0004] The present invention has been made in view of the current state of operation of the conventional incinerator as described above.
It is an object of the present invention to provide a combustion apparatus that prevents incomplete combustion by a film of slag and does not cause a decrease in air supply efficiency due to long-time use, and can always burn an object to be burned with high combustion efficiency.

[0005]

In order to achieve the above object, the present invention provides a combustion chamber for burning an object to be burned, introducing means for introducing the object to be burned into the combustion chamber, A mounting plate on which the object to be burned introduced by the introduction means is mounted, and a plurality of injection holes penetrating through a wall surface of the combustion chamber and communicating with the combustion chamber, and connected to a blower, A combustion air supply unit for supplying combustion air from the blower into the combustion chamber; and a nozzle disposed through a wall surface of the combustion chamber near the mounting plate, and ejecting cleaning air from the nozzle. Further, the present invention is characterized by a combustion device having air stirring means for blowing off slag on the surface of the object to be burned mounted on the mounting plate.

Further, the present invention is characterized in that combustion air adjusting means for adjusting the flow rate of the combustion air is provided.

Further, the present invention is characterized in that cleaning air adjusting means for adjusting the flow rate of the cleaning air ejected from the air stirring means is provided.

Further, in the present invention, a plurality of nozzles are arranged symmetrically on a wall surface of the combustion chamber in the air stirring means.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in detail with reference to the accompanying drawings. One embodiment of the present invention will be described with reference to FIG. 1A and 1B are cross-sectional views showing a configuration of an embodiment of the present invention, wherein FIG. 1A is a vertical cross-sectional view, and FIG.

In this embodiment, an exhaust port 5 protrudes from the upper end of a substantially cylindrical inner cylindrical body 1 having both end faces closed, and a combustion object inlet port is provided at a position facing the exhaust port 5. A mounting plate 2 on which an object to be burned is placed is disposed on the inner bottom surface of the cylindrical body 1, and the side surface of the cylindrical body 1 near the mounting plate 2 is provided with an ashtray. The outlet 12 is formed so as to protrude, and a combustion chamber 15 is formed inside the cylindrical body 1.
An air chamber housing 18 is provided in contact with the outer bottom surface of the cylindrical body 1, and the air chamber housing 18 has a plurality of standing tubes arranged in contact with the outer periphery of the inner cylindrical body 1. 8 are formed integrally, and a number of injection holes 14 penetrating through the peripheral surface of the inner cylinder 1 and communicating with the combustion chamber 15 are arranged and formed at a position where the standing pipe 8 is in contact with the inner cylinder 1. The air supply chamber 6 is formed in the air chamber housing 18.

An opening 17 is formed in the upper end surface of the standing pipe 8 so as to surround the inner cylinder 1 and the air chamber housing 18 from the outside.
The exhaust port 5 and the inlet 3 are disposed so as to penetrate the peripheral surface of the outer cylinder 11, and the outer peripheral surface of the outer cylinder 11 of the air chamber housing 18 is provided. A connection portion is provided at a portion protruding from the air conditioner. The connection portion is connected to the blower 7 via the adjustment valve 10, and a water cooling chamber 16 is formed between the outer cylinder 11 and the inner cylinder 1.

The operation of this embodiment having such a configuration will be described. In the operation of this embodiment, the water cooling chamber 1
6 is filled with cooling water in advance, and an automatic control device (not shown)
A predetermined amount of the burnable material such as waste oil or plastic waste material is sent from the inlet 3 into the combustion chamber 15, is placed on the mounting plate 2, and ignites the placed burnable material. Is performed. At the same time, the blower 7 is driven, the air adjusted to a predetermined flow rate by the adjustment valve 17 is sent into the air supply chamber 6, and is further injected into the combustion chamber 15 from the injection hole 14, so that the combustion air is released. It is supplied into the combustion chamber 15. Then, the temperature of the wall surface of the inner cylindrical body 1 is reduced by the cooling water in the cooling chamber 16 with respect to the combustion target sent into the combustion chamber 15 so that a predetermined amount is always subjected to combustion from the inlet 3. Under the uniform temperature condition kept constant, the combustion target is completely burned.

At the time of this combustion operation, high-speed air is blown in a plurality of directions to the surface of the object to be burned from a plurality of air stirring nozzles 13 protruding from the inner cylinder 1 near the surface of the object to be burned. The slag generated on the surface of the object to be burned is blown off from the surface of the object to be burned by the high-speed air, so that the emission of the combustion gas from the object to be burned is promoted, and the object to be burned is completely burned with high combustion efficiency.

At the time of cleaning the inside of the inner cylinder 1, the inlet 3
When the introduction of the object to be burned is stopped, the object to be burned on the mounting plate 2 is completely burnt and the flame is extinguished, and the dried ash remains on the mounting plate 2. And the inside of the inner cylinder 1 is cleaned.

As described above, according to the present embodiment, the water cooling chamber 1
Under the uniform temperature condition in which the wall surface is maintained at a constant temperature by the cooling water in 6, the burnable body on the mounting plate 2
Is completely burned by receiving the supply of air for combustion from a plurality of air stirring nozzles 13 provided near the body to be burned during combustion.
Therefore, the high-speed air is ejected in a different direction to the surface of the object to be burned, and the slag on the surface is blown away, so that the combustion efficiency of the object to be burned is not reduced by the formation of the film of the slag, and In addition, it is possible to completely burn any object to be burned while maintaining a long operating life without blocking the injection hole 14 due to solidification of incomplete combustion gas.

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 2 is a longitudinal sectional view showing the configuration of the second embodiment.

In this embodiment, unlike the first embodiment, as shown in FIG. 2, a portion of the air chamber housing 18 protruding from the peripheral surface of the outer cylinder 11 on the opposite side to the adjustment valve 10 is provided. A connection portion is also provided, and one air stirring nozzle 13 is connected to the connection portion via an adjustment valve 20. The air stirring nozzle 13 is connected to the inner cylindrical body 1 in the vicinity of the mounting plate 2. Is positioned in the combustion chamber 15 through the wall of the outer cylinder 11.
And attached to the inner cylinder 1. The configuration of the other parts of the present embodiment is the same as that of the first embodiment already described, and the description is omitted.

In this embodiment, the object to be burned on the mounting plate 2 is burned in the same manner as in the first embodiment described above. The flow rate of the high-speed air blown to the
Is set to an optimum value corresponding to the object to be burned, and the object to be burned is completely burned with high combustion efficiency.

As described above, according to the second embodiment, the object to be burned on the mounting plate 2 is injected by the cooling water in the water cooling chamber 16 under the uniform temperature condition in which the wall surface is maintained at a constant temperature. The combustion is performed by receiving the supply of combustion air from the holes 14, and at the time of combustion, an air flow rate is set to an optimum flow rate corresponding to the object to be burned from the air stirring nozzle 13 provided near the body to be burned. Since high-speed air is blown out and the slag on the surface is blown off, the combustion efficiency of the burned object does not decrease due to the formation of the slag film, and the injection holes 14 are closed by solidification of incomplete combustion gas. In addition, it is possible to completely burn any object to be burned while maintaining a long operating life.

Further, a third embodiment of the present invention will be described with reference to FIG. 3A and 3B are sectional views showing the configuration of the third embodiment, in which FIG. 3A is a longitudinal sectional view, and FIG. 3B is a sectional view taken along line BB of FIG.

In the third embodiment, as shown in FIG. 3, a plurality of air stirring nozzles 13 are provided in the second embodiment already described with reference to FIG. A plurality of connecting portions are provided on the peripheral surface of the air supply chamber 6, and the air stirring nozzles 13 are connected to the plurality of connecting portions, respectively. The part is located in the combustion chamber 15 through the wall surface of the inner cylinder 1 and attached to the outer cylinder 11 and the inner cylinder 1. The other parts of this embodiment are the same as those of the second embodiment already described, and the description will be omitted.

In the third embodiment, the object to be burned on the mounting plate 2 is burned in the same manner as in the first embodiment described above.
The flow rate of the high-speed air blown from different directions onto the surface of the object to be burned is set to an optimum value corresponding to the object to be burned by the regulating valve 20, and the object to be burned is completely burned with high combustion efficiency.

As described above, according to this embodiment, the object to be burned on the mounting plate 2 is moved under the uniform temperature condition in which the wall surface is kept at a constant temperature by the cooling water in the water cooling chamber 16.
The combustion is performed by receiving the supply of combustion air from 4 and at the time of combustion, a plurality of air agitation nozzles 13 provided in the vicinity of the burned object are set on the surface of the burned object at an optimum flow rate corresponding to the burned object. High-speed air is ejected in different directions and the slag on the surface is completely blown away, so that the combustion efficiency of the burned object does not decrease due to the formation of the slag film, and the solidification of incomplete combustion gas It is possible to completely burn any object to be burned without blocking the injection hole 14 and maintaining a long operation life.

In the illustrated embodiment, the water cooling chamber 1
In the present invention, the water-cooling chamber is not necessarily required as long as the wall surface can be maintained at a constant temperature.
As an example, it is conceivable to bury the combustion chamber 16 in the ground.

[0025]

As described above, according to the present invention, the object to be burned is introduced into the combustion chamber by the introduction means, the object to be burned is mounted on the mounting plate and ignited, and the combustion air is supplied by the combustion air supply means. Combustion air is supplied from a blower into the combustion chamber through a plurality of injection holes penetrating through the wall surface of the chamber and communicating with the combustion chamber, and uniform combustion is performed. Cleaning air is blown out from nozzles arranged through the wall of the burner to blow off slag on the surface of the burnable material placed on the mounting plate, thereby promoting gasification of the burnable material. The burning of the burnable material with high combustion efficiency, without blocking the copy hole by solidification of incomplete combustion gas,
It is possible to perform the operation while maintaining a long operating life of the high combustion capacity.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a configuration of a first embodiment of the present invention;
(A) is a longitudinal sectional view, (b) is an AA sectional view of (a).

FIG. 2 is a longitudinal sectional view showing the configuration of a second embodiment of the present invention.

FIG. 3 is a sectional view showing a configuration of a third embodiment of the present invention;
(A) is a longitudinal sectional view, (b) is a BB sectional view of (a).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inner cylinder 2 Mounting plate 5 Air supply chamber 7 Blower 8 Standpipe 10 Adjustment valve 11 Outer cylinder 13 Air stirring nozzle 14 Injection hole 15 Combustion chamber 16 Water cooling chamber 20 Adjustment valve

Claims (4)

[Claims] 1. A combustion chamber for burning an object to be burned, introduction means for introducing the object to be burned into the combustion chamber, and an object to be burned provided in the combustion chamber and introduced by the introduction means. A mounting plate, and a plurality of injection holes penetrating through a wall surface of the combustion chamber and communicating with the combustion chamber, connected to a blower, and supplying combustion air from the blower into the combustion chamber. Means, comprising a nozzle disposed through the wall surface of the combustion chamber in the vicinity of the mounting plate, from which the cleaning air is ejected,
A combustion apparatus, comprising: air stirring means for blowing off slag on the surface of the object to be burned mounted on the mounting plate. 2. The combustion apparatus according to claim 1, further comprising combustion air adjusting means for adjusting a flow rate of the combustion air. 3. The combustion apparatus according to claim 1, further comprising cleaning air adjusting means for adjusting a flow rate of the cleaning air ejected from the air stirring means. 4. The combustion apparatus according to claim 1, wherein a plurality of nozzles are arranged in the air stirring means symmetrically on a wall surface of the combustion chamber.