JPH0682018A - Incinerator for waste tires - Google Patents

Abstract

PURPOSE:To provide an air supply means required to enhance the combustion efficiency of waste tires in terms of an incineration device which incinerates waste ties for cars or the like. CONSTITUTION:In terms of an incineration device which incinerates waste tires for cars or the like, there are extrudingly installed a first combustion chamber 1, a second combustion chamber attached to the first combustion chamber, a flammable gas induction passage 3 which connects the first combustion chamber to the second combustion chamber, an air supply pipe 5, which projects its tip into an inner area near the inlet of the flammable induction passage for the first combustion chamber, and whose base end is connected to an air supply device 4 on the outside and a plurality of air spray pipes 56a which is designed to generate a turbulent current at the tip of the air supply pipe. An inflammable gas B under combustion in its early stage is mixed with the turbulent flows and diluted as well. Passing rapidly through the inflammable gas induction passage 3, the inflammable gas B can be burned perfectly at the second combustion chamber so that it may be possible to emit the exhaust gas which contains air pollutants generated when waste tires are incinerated in a clean state which contains no air pollutants.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incinerator for incinerating waste tires of automobiles and the like, and more particularly to an air supply means for improving the combustion efficiency of waste tires.

[0002]

2. Description of the Related Art In addition to sulfur, vulcanization accelerators that accelerate the vulcanization time are contained in the rubber of tires. Carbon black as a reinforcing agent. Anti-aging agent that improves the durability of rubber.
Softening agent to facilitate manufacturing work. In addition, various compounding agents such as adhesives and anti-skin agents are mixed, and it is extremely difficult to burn, and as with most rubber products, it must be burned at a considerably high temperature. When burning waste tires, use a normal incinerator. It is not used, and an incinerator exclusively for waste tires is used.

As one of the methods for incinerating waste tires using this incinerator exclusively for waste tires, a so-called dry distillation gasification and combustion system that distinguishes between gasification and combustion is widely used.
Providing a first combustion chamber and a second combustion chamber, put the waste tire in the first combustion chamber and burn it, and send the combustible gas generated by the combustion to the second combustion chamber through the combustible gas passage, and further combustible gas there. It burns.

However, in this type of furnace, when waste tires are burned in the first combustion chamber, a large amount of nitrogen oxides are generated due to high temperature combustion, and dust and nitrogen oxides. Sulfur oxides. Small amounts of hydrogen chloride and ammonia. cyan. Aldehydes and carbon dioxide. Since carbon monoxide and other air pollutants such as calcium stearate used as a stabilizer in polymers are contained in combustible gas,
It is very difficult to completely burn this in the second combustion chamber, and the combustible gas is discharged into the atmosphere in an incompletely burned state and causes environmental pollution such as photochemical smog, which is very problematic.

Therefore, as one of the methods of complete combustion, there has been used a method of supplying air when the combustible gas generated in the first combustion chamber is sent to the second combustion chamber to improve the combustion efficiency. However, the purpose of improving combustion efficiency could not be completely achieved, and there was room for improvement, because it was merely supplying air.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and as a result of the study, it completely burns a waste tire very efficiently, pollutes the air and causes secondary pollution. It is an object of the present invention to provide a waste tire incineration device capable of improving the processing capacity and shortening the processing time while suppressing the generation of exhaust gas containing a substance to a minimum.

[0007]

According to the present invention, there is provided a first combustion chamber, a second combustion chamber juxtaposed to the first combustion chamber, a combustible gas passage connecting the first combustion chamber and the second combustion chamber, An air supply pipe having a tip protruding into the vicinity of the inlet of the combustible gas passage of the first combustion chamber and a base end connected to an external air supply device,
This is a configuration in which a plurality of air injection pipes are projected from the tip of the air supply pipe.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention which has achieved the above objects will be described in detail with reference to the drawings of the following embodiments.

FIG. 1 is an overall schematic explanatory view of a waste tire incinerator of the present invention, FIG. 2 is a schematic sectional view of an air supply pipe of the present invention, and FIG. 3 is a schematic front view of an air supply pipe of the present invention. .

The present invention is an incinerator for incinerating waste tires of automobiles and the like, which comprises a first combustion chamber 1 for burning and gasifying the waste tire A, and gasification in the first combustion chamber 1. A second combustion chamber 2 arranged in parallel with the first combustion chamber 1 for completely burning the combustible gas B, and a combustible gas B generated in the first combustion chamber 1.
Combustible gas passage 3 connecting the first combustion chamber 1 and the second combustion chamber 2, which is a passage to the second combustion chamber 2, and the combustible gas passage 3 of the first combustion chamber 1. An air supply pipe 5 having a tip protruding toward the inside of the inlet toward the second combustion chamber 2 side and having a base end connected to an external air supply device 4; Combustion chamber 2
A plurality of air jet tubes 5a for generating a spiral flow to the side are provided at equal intervals and radially so as to project at a constant angle with respect to the axial direction.

The first combustion chamber 1 of the present invention is for burning and gasifying the waste tire A, and the charging port 1a for charging the waste tire A and the ignition device for igniting the waste tire A thus charged. (Not shown), a combustion air supply nozzle 1b for supplying combustion air according to a theoretical air ratio required for combustion of the waste tire A, a cooling water layer 1c, etc., and an inlet 1a having an opening / closing lid. Provided at the top or side of the first combustion chamber 1 and, for example, if a device that can automatically supply the waste tire according to the burning speed of the waste tire is attached, the device can be manually placed near the device. The troublesome and inefficient work of supplying waste tires from the input port can be omitted.

The installation location and type of the ignition device are not particularly limited, and may be something like a burner used in a normal incinerator, and the supply nozzle 1b for supplying the air for incineration is, for example, a combustion chamber. Is divided into upper and lower parts by a rustle, and is provided at a plurality of positions in the lower space part partitioned by the cooling water layer 1c.

The cooling water layer 1c may be a cooling water layer normally present in an incinerator, and the thermal energy generated during incineration is used for daily life by attaching a waste heat utilization system. If used in accordance with various demands such as for heating, it will bring about very beneficial side effects such as energy saving.

The second combustion chamber 2 is for completely combusting the combustible gas B generated in the first combustion chamber 1. The combustible gas B is completely combusted, and the smoke stack 2a provided above the combustible gas B is exposed to the atmosphere. The structure is such that the burned gas is discharged through the dust collector, and other attached devices are free depending on the purpose.

The combustible gas passage 3 is a passage through which the combustible gas B generated during combustion of the waste tire A in the first combustion chamber 1 flows into the second combustion chamber 2 in accordance with natural heat convection and passes through during initial combustion. The same as the combustible gas passage of a normal so-called dry distillation gas incineration type incinerator may be used.In order to perform initial combustion, similar to a normal dry distillation gas incineration type incinerator, auxiliary fuel is externally supplied only at the start of operation. A device such as a burner for supplying the combustible gas B can smoothly start burning.

The air supply device 4 may be the same as a blower or the like, and is not specifically limited as long as it has a structure for sending out the air C.

The air supply pipe 5 has a tip protruding toward the inside of the combustible gas passage 3 of the first combustion chamber 1 toward the side of the second combustion chamber 2 and a base end of the air supply pipe 4 to the outside. A pipe for supplying the air C from the air supply device 4 toward the combustible gas conduit 3 and made of a heat-resistant material having a certain degree of rigidity,
Figure 2. As shown in FIG. 3, the tip thereof has a trumpet shape, the mouth portion of the tip is closed, and a plurality of air injection tubes 5a for generating a swirl flow around the outside of the trumpet portion are provided in a protruding manner.

The air injection pipe 5a is for injecting the air C sent through the air supply pipe 5 toward the second combustion chamber side, as shown in FIG. As shown in FIG. 3, a plurality of air C sprayed around the outside of the tip of the air supply pipe 5 is provided at equal intervals and radially at a constant angle with respect to the axial direction so as to form a spiral flow. The above-mentioned interval and constant angle are theoretically determined in consideration of combustion efficiency so as to generate a swirl flow suitable for diluting the combustible gas and increasing the speed, but in the present invention, the interval and the constant angle are about 60 °. 6 pieces protruding,
Each of the injection pipes 5a has an angle of about 30 degrees.

In the air C, the combustible gas B generated in the first combustion chamber 1 flows into the combustible gas passage 3 by natural heat convection,
When flowing toward the second combustion chamber 2 during initial combustion, the air is injected from the air injection pipe 5a toward the second combustion chamber 2 from the vicinity of the inlet of the combustible gas passage 3 of the first combustion chamber 1. The combustible gas B is diluted by the air C so that the combustible gas B can be brought into a state close to the theoretical air ratio for complete combustion, and as described above, the injection pipes 5a are projected at equal intervals and radially with a constant angle with respect to the axial direction. Since the structure is such that a swirl flow is generated, the air C that serves to push out the combustible gas B becomes a swirl flow shape, and the combustible gas that flows from the first combustion chamber 1 toward the second combustion chamber 2 while performing initial combustion. It mixes with the gas B and flows toward the second combustion chamber 2 at a high speed, and the combustible gas B is sent to the second combustion chamber 2 in a state where it is easily combusted completely.

In order to incinerate the waste tire A using the above-mentioned waste tire incinerator of the present invention, first, the waste tire A to be incinerated is introduced through the inlet 1a and the incineration air supply nozzle 1b.
Air is further supplied and the waste tire A is ignited by an ignition device (not shown) such as a burner.

The combustible gas B generated by the combustion of the waste tire A flows into the combustible gas conducting path 3 by natural heat convection and passes through it during the initial combustion, but with the swirling flow of the air C generated by the above-mentioned configuration. Since it is mixed, diluted, and passes through at high speed with initial combustion, it is sent to the second combustion chamber 2 in a state where it is easy to completely burn, completely burns in the second combustion chamber 2, and is cleaner from the chimney 2a provided above. It is to be discharged in the converted state.

[0022]

According to the present invention, with the above-mentioned constitution, it is possible to improve the processing capacity of the combustion device for waste tires and to shorten the processing time, and to completely burn the waste tires very efficiently. Exhaust gas containing air pollutants, which were generated during tire incineration and were emitted into the atmosphere in an incomplete combustion state and polluted the atmosphere and caused environmental pollution such as photochemical smog and secondary pollution, It is a very significant invention that can be discharged in a clean state that does not contain it and can stop environmental pollution.

[0023]

[Brief description of drawings]

FIG. 1 is an overall schematic explanatory view of a waste tire incinerator of the present invention.

FIG. 2 is a schematic sectional view of an air supply pipe of the present invention.

FIG. 3 is a schematic front view of an air supply pipe of the present invention.

[0024]

[Explanation of symbols]

 A Waste tire B Combustible gas C Air 1 First combustion chamber 1a Input port 1b Combustion air supply nozzle 1c Cooling water layer 2 Second combustion chamber 2a Chimney 3 Combustible gas passage 4 Air supply device 5 Air supply pipe 5a Injection pipe

Claims (1)

[Claims] 1. An incinerator for incinerating waste tires of automobiles and the like, which comprises a first combustion chamber for burning and gasifying the waste tires, and a complete combustion of combustible gas gasified in the first combustion chamber. A second combustion chamber that is arranged in parallel with the first combustion chamber, and the first combustion chamber and the second combustion chamber that serve as a flow path to the second incineration chamber of combustible gas generated in the first combustion chamber. And a combustible gas communication path connecting the first and the second combustion chamber to the inside of the vicinity of the combustible gas communication path inlet of the first combustion chamber and the base end connected to an external air supply device. A plurality of air injection pipes, each of which includes a supply pipe and which generates a swirl flow toward the second combustion chamber side at the tip of the air supply pipe, is projected at equal intervals and radially at a constant angle with respect to the axial direction. An incinerator for scrap tires that is characterized by