JPH07119945A - Incineration furnace - Google Patents

Abstract

PURPOSE:To provide a combustion closest to a complete combustion as much as possible wherein there is no environmental contamination, by elongating a time wherein unburnt gases stay in a furnace, through a generation of a whirlpool wind in the furnace during combustion. CONSTITUTION:In composing an incineration furnace wherein burnt materials are burnt during an air supply into a furnace body, an air supplying cylinder 2 having an enclosed upper end is vertically set on an under plate of a furnace body 1 having cylindrical state with a bottom with an air supplying source P which is in communication with it, and a plurality of ejection holes 3, 3 are transparently set in perfect order at a peripheral face in a middle section of the air supplying cylinder 2 and at its outside direction flow regulating fins 4, 4 are set which respectively for the most part face toward a tangential direction of the air supplying cylinder 2. Besides, at the peripheral face in a middle section of the air supplying cylinder 2, a plurality of ejection holes 3, 3, may be transparently set with an inclination to a tangential line direction, and further, at a lower and an upper position of the high air supplying cylinder 2, a plurality of air ejecting holes groups may be transparently set with a classification.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incinerator suitable as a refuse incinerator for general households and a refuse incinerator in a refuse disposal site.

[0002]

2. Description of the Related Art Most existing incinerators, whether vertical or horizontal, inject air or oxygen straight into the incinerator to accelerate the incineration speed of incombustible dust.

[0003]

The above-mentioned prior art is only for straightly ejecting air and oxygen straightly into the furnace, and therefore the unburned gas residence time in the furnace is short and harmful. However, there is a problem that secondary gases such as foul odors caused by incomplete combustion, smoke pollution, hot water supply and heating, etc. are considerably less effective. there were.

In order to eliminate the above-mentioned problems, the present invention prolongs the residence time of unburned gas in the furnace by generating whirl in the furnace during combustion, and is limited to complete combustion without environmental pollution. The purpose is to bring them closer together.

[0005]

DISCLOSURE OF THE INVENTION The above-mentioned object of the present invention is to construct an incinerator for burning an incinerator while feeding air into the furnace body. The air supply source is provided with a hermetically sealed air supply cylinder, and a plurality of fumaroles are regularly formed on the peripheral surface of the middle part of the air supply cylinder so as to extend in the tangential direction of the air supply cylinder. This could be achieved by providing a rectifying fin to face.

Further, a plurality of fumaroles may be slanted in the tangential direction on the peripheral surface in the middle of the sending cylinder to form an incinerator in which the rectifying fins are omitted. Alternatively, a plurality of fumarole groups may be divided and provided in a transparent manner.

[0007]

[Function] If the air source is started before and after ignition in the furnace and a large amount of air is sent into the furnace from a large number of fumaroles through the cylinders, the air is tangentially bent outward and tilted. The air flowing out from a large number of fumaroles due to the rectifying action of the rectifying fins installed rises while swirling from the center of the furnace along the inner peripheral surface.
The residence time of the harmful unburned gas emitted from the incinerated substance during combustion in the high temperature furnace can be extended by 3 to 4 times as compared with the conventional example by the straight blowing, and the harmful unburned gas is commensurate with this extended time. Most of the gas has burned out.

[0008]

EXAMPLES Examples will be described with reference to the drawings. First, the basic configuration of the present invention is as shown in FIGS.
In constructing an incinerator that burns incinerators while feeding air into the furnace, a furnace with an inner diameter of about 0.8 m and a height of about 2 m made of a brick or other heat-resistant material in a steel cylinder and having a bottom A cast iron blower cylinder 2 with a height of about 40 cm and an inner diameter of about 8 cm is sealed on the lower plate 1a of the body 1 and is erected by connecting a pipe Pa and an air chamber Pb to a blower source P such as a sirocco fan blower installed on the floor. To do.

As the standing means, as shown in FIG. 1, a female screw ring bolt 2b is used for screwing.

Further, as shown in FIG. 2, about 20 fumaroles 3, 3 having a diameter of about 2 to 4 mm are regularly provided on the peripheral surface in the middle portion of the feeding cylinder 2 at equal intervals, and the feeding holes on the outside thereof are provided. A large number of rectifying fins 4, which are almost tangential to the cylinder 2,
The incinerator according to the present invention can be constructed by arranging 4 in order by means such as welding as shown in FIGS. 2 and 3.

In FIG. 1, reference numeral 2a indicates a sealing lid which covers the upper end of the feeding cylinder 2, reference numeral 1b indicates a chimney,
In addition, in FIG. 4, the portions indicated by reference numerals 5a and 5b are an inlet for an incineration object (not shown) and an outlet for ash and burnt residue, respectively, and these openings are provided with an opening / closing lid 5c after ignition of the incineration object.
To block.

Before and after this ignition, the air supply source P is started, and if a large amount of air is sent into the furnace from the large number of fumaroles 3, 3 via the sending cylinder 2, it is bent tangentially outward. Due to the rectifying action of the rectifying fins 4 and 4 which are arranged so as to be inclined, the air discharged from the large number of fumaroles 3 and 3 swirls along the inner peripheral surface from the center of the furnace as shown in Figs. However, since the temperature rises slowly, the residence time of harmful unburned gas emitted from the incinerated material during combustion in the high temperature furnace can be extended by 3 to 4 times as compared with the conventional example by the straight blowing. Most of the harmful unburned gas was burned out in time, and it was possible to solve environmental pollution problems such as air pollution pollution and bad smell pollution. In addition, the combustion efficiency naturally increases,
The heating cost was also reduced, and the amount of residual ash was significantly reduced.

Further, according to the present invention, as shown in FIG. 7, if a plurality of fumaroles 3, 3 are tangentially slanted through the peripheral surface of the intermediate portion of the feeding cylinder 2, the rectifying fins on the outside thereof are provided. Is unnecessary.

Further, as shown in FIG. 8, a large number of unit feeding cylinders 2
When these are connected in series vertically with an internal thread ring 2c, and air is blown from the fumaroles 3 of each feeding cylinder 2 all at once, whirlwind is generated evenly in the furnace, and By making the transparent direction and the inclination direction of the rectifying fins opposite to those of the others, the whirlwind in the upper part of the furnace can be canceled moderately, and the swirling of smoke and ascending airflow emitted from the chimney 1b can be softened.

[0015]

Since the present invention is constructed as described above, it has the following effects. Sending cylinder 2 fumarole 3
The air coming out of the rectifying fins 4 and the fumarole 3 itself rises slowly while swirling from the core along the inner peripheral surface due to the tangential inclination of the sending cylinder. The residence time of the gas in the high temperature furnace can be extended by 3 to 4 times as compared with the conventional example by the straight blowing, and most of the harmful unburned gas is burned out in proportion to the extension time. It has the first effect of being able to solve environmental pollution problems such as pollution pollution, odor pollution and smoke pollution.

Further, since most of the conventional unburned gas is burned out, the combustion efficiency naturally increases, and the hot water supply and heating costs can be reduced, and the amount of residual ash can be significantly reduced. The second effect is that the maintenance management can be simplified.

According to claims 3 and 4, a large number of unit feed cylinders
2 are connected in series vertically with female thread ring 2c, and each sending cylinder 2
Since the air was blown all at once from the fumaroles 3 in the furnace, whirlwind was generated evenly in the furnace, and the direction of the top fumaroles 3A and the inclination direction of the rectifying fins were set in the opposite direction. By doing so, it is possible to moderately cancel the whirlwind in the upper part of the furnace, to soften the swirling of smoke and ascending airflow emitted from the chimney 1b, and to add the effect of preventing the burning dust from rising.

[Brief description of drawings]

FIG. 1 is a vertical sectional elevation view of an embodiment of the present invention.

FIG. 2 is an enlarged horizontal cross-sectional plan view of a sending cylinder according to an embodiment of the present invention.

FIG. 3 is a perspective view of a feed cylinder according to an embodiment of the present invention.

FIG. 4 is a perspective view of an embodiment of the present invention.

FIG. 5 is a perspective view showing a state different from that of FIG.

FIG. 6 is a cross-sectional plan view taken along the broken line in FIG.

FIG. 7 is a cross-sectional view of a sending cylinder showing another example of the fumaroles.

FIG. 8 is a vertical sectional elevation view showing another example of the present invention.

[Explanation of symbols]

 1 Furnace body 2 Sending cylinder 3 Fumarole 4 Straightening fin

Claims (4)

[Claims] 1. An incinerator for burning an incinerator while feeding air into the furnace body, wherein a bottom plate 1a of a bottomed cylindrical furnace body 1 is connected to an air feeding source P by a top end closed feeding cylinder 2. In addition to being erected, a plurality of fumaroles 3, 3 are arranged in an orderly manner on the peripheral surface in the middle of the sending cylinder 2 and the sending cylinders are provided outside thereof.
An incinerator with rectifying fins 4 and 4 extending almost tangentially to 2. 2. An incinerator for burning an incinerator while feeding air into the furnace body, wherein a lower cylinder 1a of a bottomed cylindrical furnace body 1 is connected to an air supply source P with a cylinder 2 having an upper end closed. An incinerator which is erected and has a plurality of fumaroles (3, 3) tangentially inclined to the peripheral surface of the intermediate portion of the feeding cylinder (2) so as to be transparent. 3. The incinerator according to claim 1 or 2, wherein a plurality of fumarole groups are sectioned and provided above and below the sending cylinder 2. 4. The incinerator according to claim 3, wherein the direction of the uppermost fumarole and the direction of the rectifying fins are opposite to those of the other ones.