JPS58108321A - Incinerating method of scrapped motor vehicle - Google Patents

Abstract

PURPOSE:To make a material to burn by its own heat to use as a heat source, to burn completely, to save fuel and to control generation of black smoke, by making a forced blast of highly compressed air to the surface of a material to be burnt. CONSTITUTION:A door 2 is opened and a scrapped motor vehicle 8 is thrown into a furnace. When a burner provided in a through hole 10 is ignited, materials to burn by their own heat, such as rubber, plastics, paint and oil dregs owned by the scrapped motor vehicle are begun to burn. Simultaneously with a start of burning of the materials to burn by their own heat, a blast of highly compressed air is made forcibly into a furnace from air ducts 12 and 13. As a blast of highly compressed air is made forcibly so as to rub the surface of the materials to burn by their own heat, a maximum of complete burning can be done at a minimum of necessary air quantity and generates no black smoke. When burning of the materials to burn by their own heat is started, auxiliary burning is not longer necessary and incineration can be performed by burning heat of the materials to burn by their own heat.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for incinerating scrapped automobiles for recovering high quality recycled iron from scrapped automobiles.

In recent years, as the number of automobiles has increased, the scrapped automobile processing industry has been rapidly developing, but there is still a need for technological development to more efficiently and economically dispose of the ever-increasing number of scrapped automobiles.

In particular, discarded automobiles contain rubber, plastic, etc., and are resistant to adhesion to paint, oil scum, etc., so after 20 to 40 minutes have elapsed after combustion in the burner, the above-mentioned combustible materials will gradually become incandescent fP burnout. At first, various chemical reaction gases were generated, and the theoretical air for burner combustion in the incinerator was insufficient, and black smoke due to incomplete combustion was increasing, causing environmental pollution problems. Problems continued to occur.

In addition, the black smoke that filled and stagnated in the furnace significantly reduced the incineration efficiency of automatic waste storage, increasing the cost of incineration. On the other hand, in this case, if you simply increase the amount of air fed into the car,
There will be excess air, the tML in the furnace will decrease, and the combustion state in the furnace will deteriorate by -PIjj.

In addition, in order to improve the above-mentioned drawbacks, we have an incinerator capable of accommodating scrapped vehicles, and a gas complete combustion furnace consisting of a plurality of multi-stage furnaces that communicate through flues above the incinerator. However, a sintering furnace for scrapped vehicles has been proposed that has a porous passage body made of metal or refractory brick that burns the flue by moss heating +C (Japanese Patent Laid-Open No. 56-124824), but this sintering furnace Since the structure is very complex and large, there is a drawback that the construction of the furnace requires a large amount of cost.

The present invention uses extremely simple equipment to completely burn the incandescent combustion materials in scrapped vehicles as a heat source, saving fuel and solving the problem of black smoke pollution, while at the same time producing high-quality recycled iron. The purpose is to provide an incineration method for

In the method of the present invention, a discarded vehicle is placed in an incinerator, and the rubber, plastic, and paint contained in the discarded vehicle are disposed of.

An incandescent combustible material such as oil slag is ignited with a burner, and highly pressurized air with a blowing pressure of 5001@Aq to 1500 fi Aq is forcibly blown onto the surface of the incandescent combustible material. It is characterized in that the above-mentioned burning incandescent combustion material is used as a heat source.

The method of the present invention will be explained below based on examples shown in the drawings.

FIG. 1 is a side structural view of an incinerator for scrapped automobiles equipped with an apparatus for carrying out the method of the present invention, FIG. 2 is a plan structural view thereof, and FIG. 3 is a front structural view thereof.

Further, FIG. 4 shows a side sectional view, and FIG. 5 shows a plan sectional view.

The incinerator 1 has an open front side, and a door 2 is provided at this opening. A rope 13 is connected to the center of the upper edge of the door 2, and this rope 3 is connected to a deceleration motor 6 via a roller 5 attached to the Ang/V 4, and the motor 6 opens and closes the door 2 up and down. It is configured so that it can be done. 7 in the center of the door 2 is a viewing window. A scrapped automobile 8 is put into the furnace 1 from the front side.

Rubber, plastic, etc. are usually attached to the scrapped automobile 8 as is, and paint is also attached.

Oil slag and the like are still attached. Once these are ignited, their flame and heat will cause them to fire on their own! It is a so-called incandescent combustion material that sustains P burning.

A through hole 10 is bored in the rear wall 9 of the furnace 1 at the center thereof, and a burner 11 is inserted into the through hole 10 from the outside of the rear wall 9.
is equipped with.

Further, the rear wall 9 is penetrated by the tips of blower pipes 12 and 13 on both sides at appropriate intervals from the burner through hole 10, respectively. The other ends of the blast pipes 12 and 13 are connected to the discharge ports of two high-pressure turbo blowers 15 and 16 installed on the outside of one side wall 14 of the furnace 1, respectively.

This high pressure turboproar 15.16 is 500I each.
It has a high-pressure air blowing capacity of II Aq to 1,500,111 Aq, and the air volume and pressure can be adjusted. Although this embodiment shows the case where there are two air blowers, the number of air blowers installed is not particularly limited. Further, the position of the attachment of the blast pipe to the furnace wall, the amount of protrusion of the tip of the blast pipe into the furnace, and the angle at which high-pressure air is blown are determined as appropriate depending on the furnace.

In particular, consideration should be given to the installation of the air supply device so that the forced high-pressure air blows against the surface of the incandescent combustion material and circulates uniformly within the furnace 1. This is the most preferable example.

Note that a flue 18 is provided through the other side wall 17 of the furnace 1,
The flue 18 is connected to a chimney 19.

When the method of the present invention is carried out based on the incinerator I constructed as described above, first the door 2 is opened upward, the discarded automobile 8 is put into the incinerator 1, and then the door #2 is closed.

Next, the burner 11 is ignited from the rear. Burner 11
A theoretical amount of air for combustion is blown into the combustion chamber, and flame is ejected. As a result, the incandescent combustible materials such as rubber, plastic, paint, and oil slag in the car ignite and begin to burn.

If the combustion of incandescent materials is continued as is, the theoretical amount of air in the furnace will be insufficient, and various reaction gases and black smoke will be released due to incomplete combustion. This not only significantly pollutes the environment, but also significantly reduces incineration efficiency.

Therefore, according to the method of the present invention, the high-pressure turbo blowers 15 and 16 are operated at the same time as the combustion of the self-heating combustion material starts, and the
flAq to 1500m111Aqf7) High pressure air is forcefully blown into the furnace 1 through the tips of the blast pipes 12 and 13.

Since the high-pressure air is forcedly blown so as to vibrate over the surface of the incandescent material, complete combustion can be achieved with the minimum amount of air required. In addition, the forced high-pressure air increases the pressure inside the furnace 11 and circulates uniformly inside the furnace 11, and is then smoothly exhausted from the flue 18 to the chimney 19, so that stable combustion can be achieved inside the furnace 1. It is possible to achieve complete combustion under certain conditions, and the incineration efficiency can be greatly increased.
The occurrence of black smoke pollution will be completely eliminated.

In this case, there is no longer any need for flame ejection from the burner 11 or supplementary fuel supply, and the purpose of incinerating the scrapped automobile 8 can be achieved by simply using the combustion heat of the incandescent combustion material itself as a heat-containing source. . This results in a significant rationalization of fuel costs.

In addition, the forced supply of high-pressure air from the outside, along with smoother exhaust air, evens out the heat distribution inside the furnace and prevents overheating of scrapped cars, which prevents recycled iron from becoming brittle due to annealing. , exhibits excellent effects that can always obtain high quality recycled iron.

[Brief explanation of the drawing]

Fig. 1 is a side structural view of an incinerator for waste automobiles equipped with a device for carrying out the method of the present invention, Fig. 2 is a plan structural view thereof, Fig. 3 is a front structural view thereof, and Fig. 4 is a side view thereof. cross section,
FIG. 5 shows a plan sectional view thereof. Note that in the figure, arrows indicate the flow direction of high-pressure air.

Claims (1)

[Claims] A discarded vehicle is placed in an incinerator, and incandescent combustion materials such as rubber, plastic, paint, oil slag, etc. contained in the discarded vehicle are ignited using a burner, and a blowing pressure of 500 m + 1 Aq is applied.
Strongly pressurized air of 1500 s+l+, Aq is forcibly blown onto the surface of the self-heating combustion material, and the air l! I# A method for incinerating scrapped automobiles using the above-mentioned incandescent combustion material as a heat source, which is completely combusted by rubbing and forced air.