JPH10306921A - Incinerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent faulty combustion accompanied by the clogging of a grate due to plastics, molten through incineration, in an incinerator, including the plastics in matters to be incinerated. SOLUTION: In an incinerator, provided with a primary combustion chamber 3, receiving matters to be incinerated 34 to burn them, an exhaust port 11, opened at the upper part of side wall for the primary combustion chamber 3 to discharge exhaust gas, generated from the primary combustion chamber 3, to the outside of the primary combustion chamber 3, and a grate 22, arranged on the bottom part of the primary combustion chamber 3, a partitioning plate 30, forming a ventilation passage for communicating an air chamber 25 below the grate 22 with the upper part of the primary combustion chamber 3, is established at the proper place of peripheral rim part of the grate 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incinerator for mainly burning plastics and combustible wastes in which plastics and metal fittings are mixed.

[0002]

2. Description of the Related Art An incinerator for burning and burning incineration materials such as plastics and wastes in which plastics and metal fittings are integrated (for example, a blanket for clay shooting) is disclosed in, for example, JP-A-8-226623. As shown in the figure, a grate (rostral) is arranged at the bottom of a combustion furnace that stores and burns the incinerated material, and a guide is provided substantially at the center of the grate. Combustion air is supplied from the holes into the waste to promote combustion.

However, in the above configuration, since the guide is disposed substantially at the center of the rostre, the guide is covered with the object to be incinerated. Are not supplied smoothly into the combustion chamber, so that the efficiency of the initial incineration deteriorates, and the plastic melted by the initial incineration closes the through hole of the guide body, and the combustion efficiency decreases until the closed plastic is melted. .

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to prevent poor combustion due to clogging of a roster by molten plastic or the like.

[0005]

According to the present invention, there is provided a primary combustion chamber for storing and burning an incinerated material, and an exhaust gas which is opened at an upper portion of a side wall of the primary combustion chamber and which is emitted from the primary combustion chamber. And a roaster disposed at the bottom of the primary combustion chamber, and a ventilation passage communicating between the air chamber below the rostr and the upper part of the primary combustion chamber is provided at an appropriate position along the periphery of the rostr. The partition plate to be formed is erected.

In the present invention, the partition plate is provided upright at a position near the discharge port of the roaster.

Further, according to the present invention, a rostre is constituted by arranging a plurality of grid bars at appropriate intervals and juxtaposed with each other, and an engagement groove is formed at a lower end portion of the partition plate into which the rostr grid bars are engaged.
The partition plate is detachably mounted on the roaster with these components.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described first with reference to FIGS. 1 and 2. Reference numeral 1 denotes a primary combustion furnace having an outer wall formed of a heat-resistant stainless steel plate. A bottomed cylindrical primary combustion chamber 3 is formed, and a bottom wall 4 and a side wall 5 of the primary combustion chamber are made of fire-resistant fiber, heat-resistant cement, or the like.

6 is installed adjacent to the primary combustion furnace 1;
The secondary combustion furnace has an outer wall made of a heat-resistant stainless steel plate, and a secondary combustion chamber 9 in which a bottom wall 7 and a side wall 8 are made of refractory fiber or heat-resistant cement.

A discharge duct 10 communicates a discharge port 11 opened at an upper portion of the side wall of the primary combustion chamber 3 and a discharge port 12 opened at a lower portion of the side wall of the secondary combustion chamber 9. It forms the inner wall of refractory fiber and heat-resistant cement.

Reference numeral 13 denotes a combustion burner mounted on the upper part of the side wall of the primary combustion chamber 3, which is constituted by, for example, a kerosene burner, and is arranged so that the combustion flame radiates toward the inside of the primary combustion chamber 3.

Numeral 14 denotes a middle part of the side wall of the secondary combustion chamber 9, which is a smoke elimination burner mounted slightly above the discharge port 12, and is constituted by, for example, a kerosene burner. It is arranged to radiate toward.

Reference numeral 15 denotes a lid for closing the opening 2 so as to be openable and closable. A pulley 17 having a manual handle 16, a pulley 18, and a pillar 1 are provided.
9. It is configured to be driven to open and close by a winch 21 mainly constituted by a wire 20.

Numeral 22 designates a roster disposed at the bottom in the primary combustion chamber 3, and as shown in FIG. 3, a pair of heat-resistant stainless steel supporting legs 23 has a diameter of, for example, 10 mm on upper sides 23a, 23a.
A plurality of lattice bars 24... made of stainless steel rods of about mm are arranged side by side at appropriate intervals, and an air chamber 25 is formed below these lattice bars.

Reference numeral 26 denotes an ash outlet opening at the lower part of the side wall of the primary combustion chamber 3, which has an opening height facing above and below the lattice rods 24 of the roast 22 as shown in FIG. The door 27 is made openable and closable by a door 27 formed of a plate, and an air intake 29 whose opening ratio can be adjusted by a damper 28 is perforated in this door.

Numeral 30 denotes a partition plate which is mounted upright at a position close to the discharge port 11 of the roaster 22, which forms a ventilation passage 31 for ventilation between the partition wall and the side wall of the primary combustion chamber 3 and a heat-resistant stainless steel plate. And a pair of support fittings 32, 32 joined by welding or the like to the side wall facing surfaces of the primary combustion chamber 3 to form engagement grooves 33, into which the lattice bars 24,. By these engagement and disengagement, it is removably attached to the roaster 22.

The partition plate 30 is configured such that the upper end 30a thereof is positioned slightly lower than the discharge port 11 when the partition plate 30 is mounted on the rostre 22, so that the discharge port 11 is not closed at the upper end portion 30a, and Consideration is made so that the ventilation passage 31 is not blocked by the incineration material 34 introduced into the primary combustion chamber 3.

In the secondary combustion furnace 6, an exhaust port 35 is opened in the upper surface of the secondary combustion chamber 9, and an exhaust duct 36 formed of a stainless steel pipe or the like is connected to the opening.

Reference numeral 37 denotes a protective wall surrounding the primary combustion furnace 1 and the secondary combustion furnace 6, surrounding at least a portion slightly above the door 27 so that the radiant heat radiated from the furnace wall does not hit the operator. I am doing it.

Then, the winch 21 is operated to open the lid 15, and the incineration object 34 such as plastic or a clay-fired blanket integrally formed with plastic and metal fittings is put into the primary combustion chamber 3 from the input port 2. After the charging, the winch 21 is operated again to close the lid 15, and the combustion burner 13 and the smoke elimination burner 14 are burned to start incineration.

The combustion gas generated from the primary combustion chamber 3 by the above-mentioned combustion flows into the secondary combustion chamber 9 from the discharge port 11 through the discharge duct 10, where it is made smokeless by the smoke eliminating burner 14. The air is discharged from the exhaust port 35 to the outside via the exhaust duct 36.

On the other hand, the incinerated material 34 in the primary combustion chamber 3 is burned by heating by the combustion burner 13, the plastics are melted, and a part of the plastics falls into the air chamber 25 from the gap between the grid bars 24. , Some of which adhere to the grid bars 24 to block the gaps, and the amount of air passing through the gaps between the grid bars decreases, but the combustion part of the combustion burner 13 and the exhaust duct
Air is supplied into the inside 10, and combustion from the upper part of the incineration object 34 and secondary combustion in the secondary combustion chamber 9 are promoted, so that incineration can be performed efficiently.

[0023]

According to the structure of the present invention, a partition plate is formed upright at the peripheral portion of the rostral disposed at the bottom of the primary combustion chamber to form a passage for communicating the air chamber below the rostral and the upper part of the primary combustion chamber. Therefore, without significantly affecting the introduction of the incineration material into the primary combustion chamber, the ventilation path is secured, even if plastic is mixed in the incineration material and this plastic dissolves and clogs the Rostor, Air can be supplied from the ventilation passage to the upper part of the primary combustion chamber to promote combustion, and the emission of unburned gas can be prevented by improving combustion efficiency.

Further, according to the present invention, the partition plate is erected close to the discharge port opened at the upper part of the side wall of the primary combustion chamber, so that the air supply passage for supplying air to the discharge port is preferentially secured, and the exhaust gas is exhausted. Emission of unburned gas due to promotion of secondary combustion of gas can be reliably prevented.

Further, according to the present invention, the partition plate is formed with an engagement groove at the lower end thereof for receiving the grid bar of the rostre, so that the partition plate can be detachably erected with a relatively simple structure using the grid bar. When the primary combustion chamber is to be cleaned, if the partition plate is separated and taken out of the roster, the combustion chamber can be efficiently cleaned.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a side longitudinal sectional view of the same.

FIG. 3 is a perspective view of a main part of the same.

FIG. 4 is a side longitudinal sectional view of the primary combustion furnace.

[Explanation of symbols]

 3 Primary combustion chamber 11 Outlet 22 Rostor 24 Grid bar 25 Air chamber 31 Ventilation path 33 Entrance groove 34 Incinerated material

Continued on the front page (51) Int.Cl. ⁶ Identification code FI F23G 5/44 ZAB F23G 5/44 ZABD ZABG 7/12 ZAB 7/12 ZABZ F23H 1/02 F23H 1/02 F23L 9/02 F23L 9/02

Claims (3)

[Claims] A primary combustion chamber for storing and burning the incineration material, an outlet opening at an upper portion of a side wall of the primary combustion chamber, and discharging exhaust gas generated from the primary combustion chamber to the outside; A roster provided at the bottom of the chamber, and a partition plate for forming a ventilation path for communicating an air chamber below the roster with an upper part of the primary combustion chamber at an appropriate position on a peripheral portion of the roster. Incinerator characterized by the fact that it is installed 2. The incinerator according to claim 1, wherein said partition plate is erected at a position close to an outlet of said rostral. 3. The roster is configured by arranging a plurality of grid bars in parallel at appropriate intervals, and an engagement groove is formed at a lower end of the partition plate for engaging the grid bars of the roster.
The incinerator according to claim 1, wherein the partition plate is detachably attached to the roaster with these components.