JP2639861B2 - Smokeless combustion apparatus and combustion method for combustion products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion product which mainly burns flame-retardant combustion products that generate black smoke when burning shredder dust, rubber products such as waste tires and mats, and waste plastic resins. And a smokeless combustion method.

[0002]

2. Description of the Related Art Conventionally, this kind of flame-retardant combustion product emits black smoke and foul odor when it is burned with only oxygen in the air.
A method of landfill treatment is generally used because it cannot be burned.

[0003]

[Problems to be Solved by the Invention] Since conventional flame-retardant combustion products are landfilled without burning,
There are drawbacks that it is difficult to secure a treatment plant and that the treatment cost is high due to transportation to the treatment plant. In addition, since it is landfilled, it has the drawbacks of secondary pollution and wasteful disposal.

The present invention has been made in view of the above-mentioned conventional drawbacks,
Smokeless combustion of shredder dust, rubber products such as waste tires, flame-retardant combustion products such as plastic resins, etc. And a smokeless combustion method.

[0005]

In order to achieve the above object, a furnace body forming a combustion chamber and a blower for supplying air into the combustion chamber so that the combustion flame in the combustion chamber spirals or swirls. A roster provided at a lower position in the combustion chamber, and a steam generating water tank that generates water vapor serving as a water gas to be supplied to the combustion chamber by a combustion substance falling from the roster disposed at a lower part of the roster, Shredder dust formed on the wall surface of the combustion chamber opposite to the blower outlet, rubber products such as waste tires,
An input port for inputting combustion products such as waste plastic resin,
A chimney, which is attached to a downstream part of the combustion chamber and discharges exhaust gas to the outside, and a smoke-treating device such as a de-smoke or desulfurizer interposed in the chimney constitutes a smoke-free combustion device for combustion products. .

[0006]

The smokeless combustion apparatus for combustibles constructed as described above burns shredder dust, rubber products such as waste tires, and combustibles such as waste plastic resin in the combustion chamber, and blowers the combustion chamber. When you send air to
The combustion flame rotates spirally or spirally in the combustion chamber. In addition, when ash that is burned in the roast and heated ash or in the middle of burning falls into the steam generating water tank from the roast, steam is generated, and the generated steam is supplied to the combustion chamber, and is thermally decomposed by the combustion flame in the combustion chamber. And becomes water gas. For this reason, hydrogen and oxygen which were insufficient in the combustion chamber are supplied, and complete smokeless combustion is performed in the combustion chamber.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. 1 to 5 of the present invention.
In the embodiment, reference numeral 1 denotes a furnace body forming a combustion chamber 2, the furnace body 1 having a cylindrical side wall 3, end plates 4 and 5 covering both ends of the side wall 3, and both ends of the side wall 3. And leg members 6 and 6 fixed to the closer parts.

Reference numeral 7 denotes an opening / closing door for opening and closing an opening 8 formed in the end plate 4. Reference numeral 9 denotes a blower attached to the furnace body 1 so that air can be supplied into the combustion chamber 2 from a portion near one end of the furnace body 1. The outlet 10 is arranged so as to spirally or spirally burn the combustion flame.

Numeral 11 is a rostrum attached to the furnace body 1 so as to be located below the combustion chamber 2. Numeral 12 designates a combustion product formed in a substantially central portion of the side wall 3 of the furnace body 1 at a position facing the outlet 10 of the blower 9.
An opening / closing valve 14 is attached to a portion of the hopper 12 which is connected to the charging port 13 near the charging port 13.

Reference numeral 15 denotes a steam generation water tank for supplying water vapor as water gas into the combustion chamber 2 attached to the furnace body 1 so as to be located at a lower portion of the roaster 11.
A recovery port 16 is formed in the steam generation water tank 15. Reference numeral 17 denotes a chimney, which projects upward from a substantially central portion of the end plate 5 of the furnace body 1 and discharges flue gas. The chimney 17 is provided with a flue gas treatment device 18 for smoke removal, desulfurization, etc. I have.

The flue gas treatment device 18 includes a wet scrubber flue gas treatment device main body 19 provided in the chimney 17 and a neutralizing agent 20 such as sodium hydroxide. It is composed of a supply path 23 having a pump 22 for supplying from the sump storage tank 21, and a discharge path 25 for guiding the treated liquid 24 from the wet scrubber flue gas treatment apparatus main body 19 into the neutralizer storage tank 21. ing.

The smokeless combustion device 26 for a combustion product having the above-described structure includes:
It is difficult to remove and reduce harmful gas by adding and supplying a rubber product such as waste tires, waste plastic resin, or a dissolved amount of catalyst such as calcium hydroxide from the inlet 13 to reduce and reduce harmful gases. The combustion material 27 is charged into the hopper 12, the on-off valve 14 is opened and dropped into the combustion chamber 2. Thereafter, the door 7 is opened to ignite the difficult-to-burn material 27 in the combustion chamber 2, the door 7 is closed, the blower 9 is driven, and air is supplied into the combustion chamber 2. In this state, the combustion flame in the combustion chamber 2 becomes spiral or spiral in the combustion chamber.

[0013] Further, when a heating residue generated by burning on the roaster 11 or a burning residue is dropped from the roaster 11 into the steam generating water tank 15, steam is generated.
The water vapor is supplied into the combustion chamber 2 from the roaster 11, and becomes a water gas of oxygen and hydrogen by thermal decomposition by the combustion flame in the combustion chamber 2.

For this reason, the combustion chamber 2 is supplied with the water gas of oxygen and hydrogen, which is insufficient for completely combusting the difficult-to-combustible material 27 without smoke. It mixes well and becomes completely smokeless. The waste solidified by burning and melting waste tires and waste plastics into the steam generating water tank 15
Can be used as fuel.

[0015]

Next, different embodiments of the present invention shown in FIGS. 6 to 15 will be described. In the description of these embodiments, the same components as those in the first embodiment of the present invention will be denoted by the same reference numerals, and redundant description will be omitted.

The second embodiment of the present invention shown in FIGS. 6 to 8 is mainly different from the first embodiment of the present invention in that:
The water pipe 28 is arranged on the side wall 3 of the furnace body 1 so that the heat energy generated when the combustion material is burned in the combustion chamber 2 can be effectively used.
By setting it to 6A, it is possible to incinerate the incombustibles 27 and use heat energy.

The main difference between the third embodiment of the present invention shown in FIGS. 9 to 12 and the first embodiment of the present invention is that the furnace body 1A forming the combustion chamber 2 has an inclined surface 29 on the lower side.
And a residue depositing portion 30 and a rooster attachment portion 31 are formed at the lower portion of the combustion chamber 2, and the residue 32 deposited on the residue depositing portion 30 is passed through the rostral 11. By having the residue extruding device 33 for dropping the steam into the steam generating water tank 15 to generate steam, the smokeless combustion device 26B for the combustion material can be used as a shredder dust incineration device. .

Since the shredder dust contains powders of iron, copper, zinc, aluminum, chrome, magnesium, mercury, etc., these metal powders react with harmful components generated during combustion, Generation of harmful gas can be efficiently prevented.

The fourth embodiment of the present invention shown in FIGS. 13 to 15 is mainly different from the first embodiment of the present invention in that the furnace body 1B is formed in a vertical cylindrical shape. A combustible material supply device 35 for supplying the difficult combustible material 27 from the substantially central portion of the upper wall 34 of the furnace body 1B to the part of the rostral 11A in the combustion chamber 2, and the combustible material supply device 35
By providing the smokeless combustion device 26C for the combustible material in that the water supply device 36 for generating water gas in the incombustible material 27 supplied into the boiler is provided.
Hot air can be supplied to 37 or the like.

The combustion material supply device 35 has a cylindrical supply pipe 38 connected to the charging port 13 and a hopper into which the difficult-to-burn material 27 attached to the rear end of the supply pipe 38 is supplied.
39, and the hopper-3 provided in the supply pipe 38.
Screw that supplies the hard-to-burn material 27 in the inlet 9 to the inlet 13
40 and a motor 41 for rotating the screw 40
It is composed of

The water supply device 36 is provided with a water tank 43 to which water is supplied from a water pipe 42 attached to the upper wall 34 of the furnace body 1B, and a water tank 43 with a lower portion of the water tank 43, and A water supply pipe 45 provided with an on-off valve 44 for supplying water in the water tank 43 into the supply pipe 38.

[0022]

As is apparent from the above description, the following effects can be obtained in the present invention.

(1) A furnace body forming a combustion chamber, a blower for supplying air into the combustion chamber so that the combustion flame in the combustion chamber spirals or swirls, and is provided at a lower position in the combustion chamber. A roster, a steam generating tank for generating water vapor as a water gas to be supplied to the combustion chamber by a combustion substance falling from the rostr disposed at a lower portion of the rostre, and the combustion opposing an outlet of the blower. Shredder dust formed on the wall of the chamber, rubber products such as waste tires, an input port for charging combustion products such as waste plastic resin, and an exhaust gas discharged to the outside attached to a downstream portion of the combustion chamber. Since it is composed of a chimney and a waste smoke treatment device such as de-smoke and desulfurization interposed in this chimney, even if it is a difficult-to-burn material that generates black smoke during combustion, the steam supplied to the combustion flame can be supplied to the combustion chamber. In thermal decomposition to become a water gas of oxygen and hydrogen, it is possible to complete smokeless combustion. Therefore, it is possible to easily incinerate rubber products such as waste tires and plastic-based resin products which have conventionally been difficult to incinerate.

(2) According to the above (1), the steam supplied into the combustion chamber is automatically generated by the residue burned in the combustion chamber or the one being burned falling from the roaster into the steam generating water tank. It has a simple structure, can be manufactured at low cost, and can be used easily.

(3) According to the above (1), the combustion flame in the combustion chamber becomes spiral or spiral, so that the combustion flame and the water vapor are efficiently mixed, and the water vapor is thermally decomposed to produce a water gas of oxygen and hydrogen. Therefore, complete smokeless combustion can be achieved.

(4) Shredder dust, rubber products such as waste tires, plastic resins, primary-treated resin products, synthetic fibers, construction waste materials, etc., which were conventionally considered difficult to incinerate by (1). The incombustible materials in industrial waste can be incinerated. Therefore, disposal of flame-retardant combustion products in industrial waste can be easily and inexpensively performed.

(5) Claims 2 to 4 also correspond to (1) to (4).
The same effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a side view showing the first embodiment of the present invention.

FIG. 3 is a plan view showing the first embodiment of the present invention.

FIG. 4 is a rear view showing the first embodiment of the present invention.

FIG. 5 is a sectional view taken along the line 5-5 in FIG. 1;

FIGS. 6 to 8 are explanatory views showing a second embodiment of the present invention.

FIGS. 9 to 12 are explanatory diagrams showing a third embodiment of the present invention.

FIG. 13 to FIG. 15 are explanatory diagrams showing a fourth embodiment of the present invention.

[Explanation of symbols]

1, 1A, 1B: furnace body, 2: combustion chamber, 3:
Side wall, 4: End plate, 5: End plate,
6: leg member, 7: opening and closing door,
8: Opening, 9: Blower,
10: blow-out port, 11, 11A: rostrum, 12: hopper, 13: input port,
14: open / close valve, 15: steam generating water tank, 16: recovery port, 17: chimney,
18: flue gas treatment device, 19: wet scrubber flue gas treatment device main body, 20: neutralizing agent,
21: Neutralizer storage tank, 22: Pump,
23: supply path, 24: treated liquid,
25: discharge path, 26, 26A, 26B, 26
C: smokeless combustion device for combustion products, 27: combustion products,
28: water pipe, 29: slope,
30: Residue accumulation part, 31: Rostor mounting part,
32: residue, 33: residue extrusion device,
34: upper wall, 35: combustion product supply device,
36: water supply device, 37: boiler,
38: supply pipe, 39: hopper,
40: Screw, 41: Motor,
42: water pipe, 43: water tank,
44: open / close valve, 45: water supply device.

Claims (4)

(57) [Claims] 1. A furnace body for forming a combustion chamber, a blower for supplying air into the combustion chamber so that the combustion flame in the combustion chamber spirals or swirls, and a blower provided at a lower position in the combustion chamber. A roster, a steam generating tank for generating water vapor as a water gas to be supplied to the combustion chamber by a combustion substance falling from the rostre disposed at a lower portion of the roster, and the combustion chamber opposed to an outlet of the blower An inlet through which shredder dust and rubber products such as waste tires formed on the wall of the vehicle, and a combustion product such as waste plastic resin, and a chimney which discharges smoke to the outside attached to a downstream portion of the combustion chamber. And a waste smoke treatment device such as a de-smoke or desulfurizer interposed in the chimney. 2. A furnace body forming a combustion chamber having a cylindrical or upper part formed in an arc shape, and a blower for supplying air into the combustion chamber so that the combustion flame in the combustion chamber spirals or swirls. A roster provided at a lower position in the combustion chamber, and a steam generating water tank that generates water vapor serving as a water gas to be supplied to the combustion chamber by a molten combustion material falling from the rostral disposed at a lower part of the roster, An inlet for charging a combustion product such as a rubber product such as a waste tire or a waste plastic resin formed on a wall surface of the combustion chamber opposite to a blow-off port of the blower and a downstream portion of the combustion chamber. A chimney that discharges flue gas to the outside, a flue gas treatment device such as a smoke remover and a desulfurizer interposed in the chimney, and a molten combustion product that has fallen into the steam generating water tank formed in the steam generating water tank solidifies. hand And a recovery port for recovering solidified carbide usable for fuel. 3. A furnace body forming a cylindrical combustion chamber, a blower for supplying air into the combustion chamber such that a combustion flame in the combustion chamber spirals or swirls, and Rostor provided at the lower part of the tank, and a combustible throwing device for charging shredder dust, rubber products such as waste tires, and waste plastic resin and the like at the upper part of the roster. And a water supply device for generating a water gas into the combustion chamber or a discharge passage for discharging hot air from the combustion chamber to a boiler or the like. 4. A combustion step of supplying air such that a combustion flame spirals or swirls combustion products such as shredder dust, rubber products such as waste tires, and waste plastic resin in a combustion chamber; A heating gas residue generated during the combustion process or a substance being burned falls into a water tank and supplies water vapor into the combustion chamber to generate a water gas, and degas smoke from the combustion chamber. A method for treating smokeless combustion products, which comprises a step of treating flue gas such as desulfurization.