JPH09250720A - Incinerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively use exhaust gas in a quenching cylinder and save energy by connecting a combustion cylinder having an incineration burner to the quenching cylinder having a quenching burner and constituting the quenching cylinder of an outer wall and an inner wall made of a fire resisting fiber and a heat resisting cement. SOLUTION: A combustion cylinder 3 in which materials 2 to be incinerated are housed is formed in the shape of a cylinder with a bottom. A first incineration burner 9 is fixed to the upper part of the side wall 5 of the combustion cylinder 3 and a second incineration burner 10 is fixed to the lower part of the side wall 5, respectively. A quenching cylinder 14 is provided for making exhaust gas smokeless by a quenching burner 13 and communicates with the combustion cylinder 3 through ducts 15 to 18. The quenching cylinder 14 comprises an outer wall 19 and a first inner wall 20 and a second inner wall 21 which are laminated on the inner surface of the outer wall 19. The first inner wall 20 is made of a fire resisting fuber and the second inner wall 21 is made of a heat resisting cement, respectively. Further, a support member 22 is fixed to the inner surface of the outer wall 19 by a welding or the like, passes through the first inner wall 20 and extends to the second inner wall 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incinerator for incineration objects requiring a high incineration temperature.

[0002]

2. Description of the Related Art Conventionally, an incinerator for burning an incineration object by an incineration burner is disclosed in, for example, Japanese Patent Application No. 7-31.
No. 1720. In this incinerator, an incinerator burner is provided on the side wall of the combustion cylinder, and a lid is provided on the upper inlet. A smoke eliminating cylinder is provided in communication with the combustion cylinder, and a smoke eliminating burner and a blower are provided below the smoke eliminating cylinder.

[0003]

The smoke extinguishing tube constituting the above-mentioned incinerator is composed of an outer wall made of a stainless steel plate and an inner wall made of heat-resistant cement, and is provided so that exhaust gas passes through the inside thereof. However, heat-resistant cement has good heat resistance but poor heat insulation. As a result, the outer wall has a high temperature rise value and is easily distorted, and a large amount of heat is dissipated through the outer wall, so that there is a first drawback that the exhaust gas in the smoke eliminator cannot be effectively used.

Further, when vibration is applied as in the case of installing the incinerator, there is a second drawback that the heat-resistant cement forming the smoke eliminator is likely to partly collapse. Therefore, in consideration of the above-mentioned conventional drawbacks, the present invention provides an incinerator capable of effectively utilizing exhaust gas and resistant to collapse of heat-resistant cement constituting a smoke eliminator.

[0005]

In order to solve the above-mentioned problems, the present invention is provided with a combustion cylinder in which an incineration object is housed and which is provided with an incineration burner, and a smoke elimination burner which communicates with the combustion cylinder. The smoke eliminator comprises an outer wall, a first inner wall and a second inner wall laminated on the inner surface of the outer wall, the first inner wall being made of a fire resistant fiber material, and the second inner wall being made of heat resistant cement. is there.

More preferably, the present invention further comprises a support on the inner surface of the outer wall so as to extend through the first inner wall and extend to the second inner wall,
A fixture is provided on the support so as to support the outer surface of the first inner wall,
A substantially V-shaped protrusion is provided on the support so as to protrude into the second inner wall.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An incinerator according to an embodiment of the present invention will be described below with reference to FIGS. Figure 1 shows the incinerator 1
2 is a detailed view of a portion A of FIG. 1. In these figures, the incinerator 1 is equipped with various types of dust, plastic,
A combustion tube 3 for accommodating an incineration object 2 such as rubber or vegetation is provided.

The combustion cylinder 3 is composed of an outer wall 4, a side wall 5 and a bottom wall 6. The outer wall 4 is made of, for example, a stainless plate, and is formed in a bottomed cylindrical shape. The side wall 5 is made of heat-resistant cement, for example, and is formed in a substantially cylindrical shape along the inner surface of the outer wall 4. The bottom wall 6 is also made of, for example, heat-resistant cement, and the outer wall 4
Is formed so as to fill the bottom surface of the. The ash outlet 7 is provided below the side wall 5, and an openable and closable door is provided on the outer surface.

The incineration burner 8 comprises a first incineration burner 9 and a second incineration burner 10. The first incineration burner 9 includes a burner body, a combustion pipe having an ejection port for ejecting a combustion flame at the tip, a nozzle for ejecting kerosene in a mist shape at the center of the combustion pipe, an igniter on the upper surface, and a side surface. It is composed of a damper and a kerosene supplying electromagnetic pump (neither is shown). The first incineration burner 9 is fixed above the side wall 5 forming the combustion cylinder 3, and the combustion flame thereof is provided so as to face substantially the center of the combustion cylinder 3.

The second incineration burner 10 has substantially the same structure as the first incineration burner 9 and is fixed below the side wall 5. A charging port 11 for charging the incineration target 2 is opened on the upper surface of the combustion cylinder 3, and the charging port 11 is opened and closed by a lid 12.

A smoke extinguishing cylinder 14 is provided for making the exhaust gas generated from the combustion cylinder 3 smokeless by the smoke extinguishing burner 13.
The smoke extinguishing burner 13 has substantially the same structure as the first incineration burner 9, is fixed to the bottom surface of the smoke extinguishing cylinder 14, and is provided so that the combustion flame thereof faces upward in the smoke extinguishing cylinder 14.

One end of each of the ducts 15, 16 and 17 is a combustion cylinder 3
Each of which is arranged on the side wall 5 of the smoke duct 1 and the other end of the duct 15
It is located on the side wall of No. 4. One of the ducts 18 communicates with the ducts 16 and 17, and the other penetrates the bottom surface of the smoke eliminator 14. The smoke extinguishing cylinder 14 is communicated with the combustion cylinder 3 by these ducts 15, 16, 17 and 18.

The smoke eliminating cylinder 14 comprises an outer wall 19, a first inner wall 20 arranged on the inner surface of the outer wall 19 and a second inner wall 21 arranged on the outer surface of the first inner wall 20. The outer wall 19 is made of, for example, a stainless plate having a thickness of about 3 mm, and has a bottomed cylindrical shape. First inner wall 20
Is made of a refractory fiber material, and for example, "Kawool" manufactured by Isolite Industrial Co., Ltd. can be used.

In addition, a "high temperature refractory fiber material" made of fibrous alumina or silica may be used. In this way, the first inner wall 20 having a thickness of about 30 mm is fixed on the inner surface of the outer wall 9. The first inner wall 20 made of a refractory fiber material has excellent heat insulating properties, and has a first advantage that it is difficult to transfer heat. Further, it has a second advantage that it has excellent sound insulation and has a sound absorbing effect.

A second inner wall 21 made of heat-resistant cement having a thickness of about 70 mm is arranged on the outer surface of the first inner wall 20. The second inner wall 21 made of heat-resistant cement has excellent heat resistance, and has a first advantage that it does not deteriorate even if it is directly contacted with high-temperature exhaust gas at about 700 to 800 ° C. Further, even if the exhaust gas containing hydrogen chloride or sodium oxide is directly contacted, there is a second advantage that chemical deterioration is less likely (compared to the first inner wall 20). However, the second inner wall 21 is inferior in heat insulation and has a drawback that heat is easily transmitted.

Desirably, a support 22 made of, for example, a stainless steel rod is fixed to the inner surface of the outer wall 19 by welding or the like. The support 22 penetrates the first inner wall 20 and is arranged so as to extend into the second inner wall 21. A washer 23 made of, for example, a stainless plate is inserted from the tip of the support 22 and is in contact with the outer surface of the first inner wall 20. Then, a fixture 24 such as a nut made of stainless steel is fastened to a threaded portion near the tip of the support 22 and abuts and is fixed to the washer 23. The projecting tool 25 is made of, for example, a stainless steel rod and is formed in a substantially V shape, and the central portion thereof is fixed to the tip of the support tool 22 by welding or the like. A plurality of supports 26, each of which includes the support 22, the washer 23, the fixture 24, and the protrusion 25, are provided at appropriate positions on the smoke eliminator 14.

In this way, since the fixing tool 24 is provided on the support tool 22 and the outer surface of the first inner wall 20 is supported by the fixing tool 24 and the washer 23, the first inner wall 20 is firmly fixed to the outer wall 19. Become. Further, by providing a substantially V-shaped projection tool 25 at the substantially tip of the support tool 22 and the projection tool 25 protruding and biting into the second inner wall 21, it is possible to prevent the second inner wall 21 from partially collapsing due to vibration or the like.

Further, the ash outlet 27 is provided below the smoke extinguishing cylinder 14, and an openable and closable door is provided on the outer surface. The blower 28 is arranged below the smoke eliminator 14, and one end of a blower duct 29 is connected to the blower port of the blower 28. Lid 3
0 is provided on the upper portion of the smoke extinguishing cylinder 14, and a chimney 31 is provided so as to penetrate the lid body 30 and communicate with the smoke extinguishing cylinder 14. The air duct 29 extends upward away from the smoke eliminator 14,
One end thereof is arranged so as to be located inside the chimney 31. The incinerator 1 is composed of these parts.

Next, the operation of the main incinerator 1 will be described. First, the lid 12 is opened, and the incineration object 2 is put in through the inlet 11 and the lid 12
Close. Then, the blower 28 is operated, and then the smoke eliminating burner 13 is operated so that the high temperature exhaust gas is caused to flow into the smoke eliminating cylinder 14. In addition, a large amount of air is caused to flow into the chimney 31 in accordance with the operation of the blower 28, so that an upward draft (air flow) is generated in the smoke eliminator 14.

In this way, when the temperature inside the smoke extinguishing cylinder 14 reaches a predetermined temperature, the first incineration burner 9 and the second incineration burner 1
0 is started, and the incineration operation of the incineration object 2 is started. Then, the gas generated from the combustion tube 3 is supplied to the ducts 15, 16, 17,
The smoke enters the smoke extinguishing tube 14 through 18, is smokeless by the smoke extinguishing burner 13, and is discharged through the chimney 31.

Then, when the incinerator burner 8 is operated for a predetermined time (for example, 2 to 3 hours) and the incineration operation is completed, the incinerator burner 8 is stopped. After that, the operation of the smoke eliminating burner 13 is continued for a while to perform smokeless operation. After that, when a predetermined time elapses, the smoke eliminating burner 13 is stopped, and when the temperature inside the smoke eliminating cylinder 14 drops to a predetermined temperature, the blower 28 is stopped and the entire operation is ended.

[0022]

As described above, according to the present invention, the heat of the hot exhaust gas flowing in contact with the second inner wall is transferred to the first inner wall via the second inner wall. However, since the first inner wall is made of a refractory fiber material, it has good heat resistance and good heat insulation, so that heat transfer is poor, and the temperature rise value of the outer wall can be suppressed to a low value (for example, about 200 ° C.). As a result, there is no thermal distortion of the outer wall. Further, since the amount of heat released through the outer wall is reduced in this manner, the exhaust gas in the smoke eliminator can be effectively used to save energy. That is, the amount of fuel becomes smaller than that in the conventional case in order to allow the exhaust gas of a predetermined temperature and a predetermined amount to flow into the smoke eliminator.

Further, since the first inner wall does not come into direct contact with the exhaust gas, it does not deteriorate due to being attacked by hydrogen chloride or sodium oxide in the exhaust gas. Further, since the first inner wall made of the refractory fiber material has a sound insulating effect, noise caused by the flow of exhaust gas is reduced.

According to the present invention, preferably, the support is provided with a fixture, and the fixture supports the outer surface of the first inner wall, so that the first inner wall is firmly fixed to the outer wall. Further, a substantially V-shaped protrusion is provided at the substantially tip of the support, and the protrusion protrudes into the second inner wall. As a result, it is possible to prevent the second inner wall from partially collapsing due to vibration or the like due to the protrusion tool biting into the second inner wall.

[Brief description of drawings]

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

FIG. 2 is a detailed view of part A of FIG.

[Explanation of symbols]

 2 Incinerated matter 3 Combustion cylinder 8 Incineration burner 13 Smoke eliminating burner 14 Smoke eliminating cylinder 19 Outer wall 20 First inner wall 21 Second inner wall

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location F23G 5/44 ZAB F23G 5/44 ZABD 7/10 ZAB 7/10 ZAB 7/12 ZAB 7/12 ZABZ (72) Inventor Kiyoshi Kishimoto 3-201 Minamiyoshikata, Tottori-shi, Tottori Sanyo Electric Co., Ltd. (72) Norio Morimoto 3-201 Minamiyoshikata, Tottori-shi, Tottori Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. A combustion cylinder in which an incineration object is stored and which is provided with an incinerator burner, and a smoke extinguishing cylinder which is connected to the combustion cylinder and is provided with a smoke extinguishing burner, wherein the smoke extinguishing tube is provided on an outer wall and an outer wall thereof. An incinerator comprising a first inner wall and a second inner wall laminated on the inner surface, wherein the first inner wall is made of refractory fibrous material and the second inner wall is made of heat-resistant cement. 2. A support is provided on the inner surface of the outer wall so as to extend through the first inner wall to the second inner wall, and a fixture is provided on the support so as to support the outer surface of the first inner wall. The incinerator according to claim 1, wherein the support member is provided with a substantially V-shaped protrusion so as to project into the second inner wall.