JPH102529A - Incinerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an incinerator, not necessitating any auxiliary device, such as a fan and the like, to prevent the generation of combustion smoke. SOLUTION: A combustion chamber 3 is formed in a furnace body 2 and a chimney 5, whose lower end opening 5a communicates with the combustion chamber 3, is established on the furnace body 2. Secondary combustion air introducing pipes 10 are provided along the wall surfaces 7a, 7b of the combustion chamber 3 and the outlet ports 10a of the secondary combustion air introducing pipes 10 are positioned near the lower end opening 5a of the chimney 5 while the suction ports 10b of the secondary air introducing pipes 10 are opened at the outside of lower end of the furnace body 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incinerator, and more particularly, to an incinerator with reduced smoke generation which enables efficient secondary combustion of waste without requiring an auxiliary device such as a blower. About.

[0002]

2. Description of the Related Art Conventional incinerators used to incinerate combustible wastes require smoke generated by combustion to adversely affect the surrounding environment. Have been. Therefore, conventional incinerators have a combustion chamber divided into a primary combustion chamber and a secondary combustion chamber, and further provided with a passage connecting the secondary combustion chamber and the outside air, and a blower provided in this passage. It was normal. By driving the blower, the outside air is forcibly sent to the secondary combustion chamber, where the incomplete combustion such as combustion smoke is further secondary-burned, and the combustion smoke is released to the outside air. Was suppressed.

[0003]

However, in the conventional incinerator as described above, since auxiliary means such as a blower must be provided, the incinerator is not only large-sized but also expensive. In addition, since power is required to operate the blower, a drive source such as a gasoline engine is used in places where commercial frequency voltage is difficult to obtain, such as when treating general waste at construction sites. Will be needed.

An object of the present invention is to solve such a conventional problem, and to provide an incinerator that does not require an auxiliary device such as a blower to suppress generation of combustion smoke. It is in.

[0005]

Means for Solving the Problems The present invention relates to an incinerator and has the following structure in order to solve the above-mentioned technical problem. That is, the incinerator according to the present invention comprises a furnace body having a combustion chamber, a chimney standing upright on the furnace body and having a lower end opening communicating with the combustion chamber, and a stack formed along a wall surface of the combustion chamber. A secondary combustion air introduction pipe, an outlet of the secondary combustion air introduction pipe is located near a lower end opening of the chimney, and a suction port thereof is open to the outside of the furnace body. I do.

[0006] The secondary combustion air introduction pipe may be an inexpensive steel pipe for a general structure, and is formed of a heat-resistant steel such as 13 chromium steel or 18-8 stainless steel, or a heat-resistant material such as ceramic. Is preferred. Further, although providing only one secondary combustion air introduction pipe is effective, it is preferable to provide a plurality of secondary combustion air introduction pipes at symmetrical positions.

Further, according to the present invention, the combustion chamber includes a primary combustion section and a secondary combustion section, and the secondary combustion section is located at a position where an outlet of the secondary combustion air introduction pipe is open. It is characterized in that other parts except the secondary combustion part function as a primary combustion part.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an incinerator according to the present invention. 1 is a front view of an incinerator according to an embodiment of the present invention, FIG. 2 is a side view of the embodiment, FIG. 3 is a plan view of the embodiment, and FIG. 4 is a schematic diagram showing an internal state of the incinerator. is there. The incinerator 1 of the present embodiment includes a furnace body 2 having a combustion chamber 3 formed therein, and a chimney 5 erected from a top 4 of the furnace body 3.

The furnace body 2 has a box shape, and has a combustion chamber 3 surrounded by a ceiling wall 7a, a peripheral wall 7b, and a floor 8 formed of a heat-resistant iron plate.
Further, as shown in FIG. 4, the outer surface 2a and the upper surface of the furnace body 2 are formed of an iron plate.

At the front side of the furnace body 2, a waste inlet 13 is provided.
And a sliding door 18 for opening and closing the inlet 13. The sliding door 18 is suspended and supported by a pair of support rods 19, 19, and the upper ends of the support rods 19, 19 are laid on rails 20 fixed along the front wall of the furnace body 2. The sliding door 18 is opened and closed along.

The chimney 5 has a lower end opening 5a communicating with the combustion chamber 3 at an upper portion thereof. The upper portion of the chimney 5 is provided with a mesh 6 made of stainless steel for preventing the scattering of sparks provided with a large number of holes around the chimney. The mesh 6 for preventing scattering of fire powder has a cylindrical shape with a larger diameter than the chimney 5.

The combustion chamber 3 has a ceiling wall surface 7a and a peripheral wall surface 7b.
And a secondary combustion air introduction pipe 10 formed of a pipe having a rectangular cross section, extending to the floor surface 8 along the line. One end of the secondary combustion air introduction pipe 10 serves as an air outlet 10a, and is located near the lower end opening 5a of the chimney 5 to serve as a secondary incineration section B. In addition, other parts except this secondary incineration part become a primary incineration part A.

The other end of the secondary combustion air introduction pipe 10 is an air intake port 10 b, and opens outward from the floor 8 of the furnace body 2. In the present embodiment, a pair of secondary combustion air introduction pipes 10 are formed, and the respective outlets 10a, 10a face each other in the vicinity of the lower end opening 5a of the chimney 5, as is apparent from FIG. doing.

Further, the combustion chamber 3 communicates with a combustion air introduction pipe 15 attached to the furnace body 2 and also communicates with an inlet 13 formed in the furnace body 2. Further, the combustion chamber 3 has a roaster 1 supporting the waste introduced from the inlet 13.
4 are provided. Ash fall 21 under Rostor 14
Are provided, and both ends of the ash fallout portion are ash outlets 22.

In the present embodiment, a space 9 filled with water is formed between the outer surface 2a of the furnace body 2 and the inner peripheral wall defining the combustion chamber 3, and the space 9 is formed in the upper part of the combustion chamber. A relatively large water filling portion 17 communicating therewith is formed. The water filling section is provided with a water supply port in a water supply pipe 12 provided on the side of the furnace body 2 to supply water to the water filling section 17 and the gap 9 to prevent heat damage to the incinerator 1. ing. The water filling portion 17 is provided with a ball tap 16 for keeping the water level constant, and opens and closes a valve (not shown) provided at the water supply port.

Further, a faucet 23 is provided so as to communicate with the space 9, and the water filled in the space 9 and the water filling portion 17 around the furnace body 2 is heated by the heat of the incinerator, and the faucet 23 is supplied to the faucet. It is possible to take it out and use it through 23.

Next, the incineration process of the incinerator 1 according to this embodiment will be described. The waste introduced into the combustion chamber 3 of the incinerator 1 through the inlet 13 is ignited in the primary incinerator A and burns (primary combustion). This combustion gradually raises the temperature inside the combustion chamber 3 with a flame. When the temperature inside the combustion chamber 3 becomes high due to the combustion heat, and the high-temperature combustion heat is exhausted from the chimney 5 as an updraft, the secondary combustion section B
Since the outlet 10a of the secondary combustion air inlet pipe 10 is located near the lower end opening 5a of the chimney 5, fresh air outside the incinerator 1 is forcibly sucked from the inlet 10b and the outlet It is blown out from 10a, so that oxygen is supplied. Then, the vicinity of the lower end opening 5a of the chimney 5 becomes a secondary combustion section, and the waste is further burned. For this reason, the waste is almost completely burned, and the combustion smoke is hardly discharged.

[0018]

As described above, in the incinerator according to the present invention, a chimney whose lower end opening communicates with the combustion chamber is erected on the furnace body forming the combustion chamber, and is formed along the wall surface of the combustion chamber. Since the outlet of the secondary combustion air introduction pipe is located near the lower end opening of the chimney and the intake opening is opened to the outside of the lower end of the furnace body, waste Since incineration was performed reliably, the generation of combustion smoke, which is an environmental problem, was reduced.

Further, since no auxiliary means such as a blower is required, it is possible to provide an incinerator which has a simple structure and is inexpensive. In addition, since no power is required, it is economical and can be installed in places where power is difficult to obtain, such as construction sites. In addition, there is no need to divide the combustion chamber into a primary combustion chamber and a secondary combustion chamber, so that the structure of the combustion chamber is simplified.

[Brief description of the drawings]

FIG. 1 is a front view of an incinerator according to an embodiment of the present invention.

FIG. 2 is a side view of the incinerator.

FIG. 3 is a plan view of the incinerator.

FIG. 4 is a schematic diagram showing a condition of a combustion chamber of the incinerator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Incinerator 2 Furnace body 3 Combustion chamber 5 Chimney 7a wall surface (ceiling wall surface) 7b wall surface (peripheral wall surface) 10 Secondary combustion air introduction pipe 10a outlet 10b inlet A Primary combustion part B Secondary combustion part

Claims (2)

[Claims] 1. A furnace body having a combustion chamber formed therein, a chimney erected on the furnace body and having a lower end opening communicating with the combustion chamber, and a secondary combustion air inlet formed along a wall surface of the combustion chamber. And an outlet of the secondary combustion air introduction pipe is located near a lower end opening of the chimney, and an inlet of the pipe is opened outside the furnace body. 2. The combustion chamber includes a primary combustion section and a secondary combustion section, and the secondary combustion section is located at a position where an outlet of the secondary combustion air introduction pipe is open. The incinerator according to claim 1, wherein the other part except the combustion part functions as a primary combustion part.