JPH10185161A - Incinerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently incinerator the stuff to be incinerated such as moved lawn grass in a golf course and the raw refuse to be discharged in the daily life. SOLUTION: An incinerator comprises an incinerator body 1 provided with a charge port 1c of the stuff 5 to be incinerated and a waste gas outlet on an upper part and an ash outlet 1f on a lower part, a grate 2 which is arranged in the incinerator body 1 in a horizontal condition, and divides the inside of the incinerator into upper and lower parts, a burner which is arranged below the grate 2 and on the lower part side of the incinerator body 1, and burn the stuff 5 to be incinerated changed from the charge port 1c into a combustion chamber 6 above the grate 2, and a plurality of air injection pipes 4 which are arranged on a bottom of the incinerator body 1 and provided with a large number of nozzles 4a to jet the air A from a burner combustion chamber 7 formed below the grate 2 toward the gap G of the grate 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables efficient incineration of incinerated materials such as cut grass at golf courses, garbage discharged from daily life, and various industrial wastes. It relates to an incinerator.

[0002]

2. Description of the Related Art Generally, in a golf place, lawn mowing is regularly performed in order to maintain a good grass surface such as a green grass surface. For this reason, in a golf course, a large amount of cut grass is generated after mowing the grass, and the cut grass is processed by various methods.

[0003] In other words, there are two methods of treating the cut grass, stacking the cut grass on the ground and incinerating the cut grass using a small incinerator, and treating the cut grass with an open space in a golf course. There is a method of stacking and rot, and reusing it as compost.

[0004]

However, when the cut grass is piled up on the ground and naturally incinerated, it takes a long time for the incineration process, and a large amount of smoke is generated. This is not a very preferable treatment method because of problems such as dropping. Further, when incineration treatment is performed using a small incinerator, usually, incinerators that use incineration of cut turf in the furnace or fuels such as oil and gas are used. However, none of these incinerators has a problem in that the combustion efficiency is relatively poor because no special measures are taken for the structure, the incineration process takes time, and the fuel consumption increases. Furthermore, when cutting grass is reused as compost, a relatively large site is required,
There are problems such as generation of offensive odor.

In any case, there is a problem that when burning cut grass produced at a golf course, the burning efficiency is low and the burning process takes time. In particular, when the cut grass having a high moisture content is incinerated, the above problem is further promoted.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and can efficiently incinerate incinerated materials such as cut grass at a golf course and garbage discharged with daily life. To provide such an incinerator.

[0007]

In order to achieve the above object, an incinerator according to claim 1 of the present invention has an inlet for an incineration object and an exhaust gas outlet at an upper part, and an ash outlet at a lower part. Respectively, and are disposed in a horizontal posture in the furnace body,
A roster that divides the inside of the furnace up and down, a burner that is disposed at a position lower than the roster and at a lower side of the furnace main body, and burns incineration material introduced into a combustion chamber above the rostr from an input port; And a plurality of air ejection pipes provided with a number of nozzles for ejecting air from a burner combustion chamber formed below the roster toward a gap between the rostles. .

[0008] The incinerator according to claim 2 of the present invention comprises:
The rostr is composed of a plurality of substantially prismatic grate bars formed of castable refractories, and the grate bars are arranged in parallel in the furnace at regular intervals, and the gap between the grate bars can be adjusted. There is a feature in doing so.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 and FIG. 2 are schematic longitudinal sectional views of an incinerator according to the present invention. The incinerator includes an oven body 1, a rostrator 2, a burner 3, an air jet pipe 4, and the like. It incinerates incinerated objects 5 such as cut grass and garbage discharged with daily life.

The furnace body 1 includes a casing 1a made of a steel plate.
Is formed by lining a refractory 1b such as a castable refractory, a plastic refractory, or a refractory brick, and is formed in a box shape by front, rear, left and right side walls, a furnace bottom, and a ceiling wall. In this example, the furnace main body 1 has a height of H2500 mm, a width of W2300 mm, and a depth of L18.
It is formed in a box shape of 00 mm. Furnace body 1
An inlet 1c for charging the incinerated material 5 such as cut grass into the furnace is formed in the ceiling wall of the furnace. That is, the input port 1c
Is formed in a rectangular shape having a width of W'2000 mm and a depth of L'1000 mm, and can be opened and closed by a sliding door 1d slidably provided on the upper surface of the ceiling wall. The sliding door 1d is configured to be opened and closed automatically or manually, and can be moved in the direction of the arrow in FIG. 1 by being guided by a guide rail (not shown) laid on the upper surface side of the ceiling wall. ing. Further, an exhaust gas outlet 1e for discharging exhaust gas in the furnace is provided at an upper portion of a side wall of the furnace main body 1, and an ash outlet 1f for taking out ash accumulated at a furnace bottom is provided at a lower portion of the side wall. Is formed. In FIG. 1, reference numeral 1g denotes an ash outlet lid for opening and closing the ash outlet 1f, 1h an inspection port formed on the side wall of the furnace main body 1, and 1i an inspection port lid for opening and closing the inspection port 1h. .

The roastle 2 is disposed in the furnace of the furnace body 1 at a position of 300 mm to 400 mm from the furnace bottom in a horizontal posture, and divides the inside of the furnace up and down to form a combustion chamber 6 upward.
Further, a burner combustion chamber 7 is formed below the partition.
That is, the rostor 2 is composed of a plurality of substantially prismatic grate rods 2a formed of castable refractories.
In this example, each grate bar 2a is formed of a castable refractory into a substantially prismatic shape having a width of 150 mm and a height of 200 mm, and a plurality of reinforcing metal bars 2b are embedded therein. . Further, the upper surface of each grate bar 2a is formed in an arc shape so that the incineration ash can easily fall below the roster 2. In addition, since each grate bar 2a is formed of a castable refractory, heat can be accumulated.

The grate rods 2a are connected to the furnace body 1
Are placed side by side at regular intervals on a grate rod receiver 8 disposed opposite to the inner surface of the lower end of the side wall of the grate rod receiver 8.
You can adjust the movement along. Therefore, the rostrule 2 can adjust the gap G between the grate bars 2a by moving each grate bar 2a along the grate bar receiver 8. In this example, the gap G between the grate bars 2a can be adjusted in the range of 20 mm to 50 mm. The grate rod receiver 8 is formed of a refractory such as a castable refractory or a refractory brick.

The burner 3 is disposed at a position lower than the roaster 2 and at a lower portion of the side wall of the furnace main body 1. The burner 3 removes the incineration material 5 charged into the combustion chamber 6 above the roaster 2 from the charging port 1c. Burn it. The burner 3 includes a heavy oil burner (fuel consumption: 10 to 15 l / H) such as a rotary burner using fuel oil A as a fuel or a pressure spray burner.
r) is used.

The air discharge pipe 4 is disposed at the bottom of the furnace main body 1 and discharges the air A from a burner combustion chamber 7 formed below the rostr 2 toward the gap G of the rostr 2. It is. That is, the air ejection pipe 4 is formed by a metal pipe having a closed end, and nozzles 4a for ejecting the air A are formed at regular intervals on the outer peripheral surface. The air ejection pipes 4 are arranged side by side along the grate bar 2a at the bottom of the furnace main body 1 so as to penetrate the lower end of the side wall of the furnace main body 1, and the nozzles 4a of the air ejection pipes 4 are arranged in parallel. Are opposed to the slit-shaped gap G of the rostral 2. Furthermore, a header 9 and an air supply pipe 1 are provided at the base end (portion protruding from the furnace main body 1) of each air ejection pipe 4.
0 and the blower 11 are connected to each other,
High-pressure air A can be supplied. In this example, a turbo blower or a plate blower having a pressure of 500 mmH ₂ O or more is used as the blower 11.

In the incinerator, an auxiliary burner (not shown) using fuel oil A as a fuel is provided on the side wall of the furnace main body 1 at a position above the roaster 2.
The incineration material 5 in the combustion chamber 6 can be burned in an auxiliary manner. Also, the exhaust gas outlet 1e of the furnace body 1
Is connected to a casing (not shown) forming a secondary combustion chamber, and a secondary burner (not shown) provided in the casing with unburned components in the exhaust gas discharged from the exhaust gas outlet 1e into the secondary combustion chamber. ) For secondary combustion. Further, a dust collector (not shown) such as a cyclone or an electric dust collector is connected to an outlet of the casing forming the secondary combustion chamber to collect dust in exhaust gas.

Next, a description will be given of a case in which the cut grass 5 (incineration material) of a golf course is incinerated using the incinerator configured as described above.

In this case, the incinerator has an inlet 1c formed in the ceiling wall of the furnace body 1, so that the cut grass 5 can be easily introduced into the furnace from the inlet 1c in the lowland of the golf course. It is installed.

In order to incinerate the cut turf 5, first, the door 1d provided on the ceiling wall of the furnace body 1 is slid to open the charging port 1c, and the furnace 1 is opened through the charging port 1c. Room 6
The cut grass 5 is put into (in). That is, the cut grass 5 has a height of about 500 mm to 600 mm on the rostrum 2.
Is charged so as to form a layer. At this time, input port 1
Since c has a large opening on the ceiling wall portion of the furnace body 1, the cut grass 5 can be easily and easily put into the furnace. The gap G between the grate rods 2a of the roaster 2 is adjusted in advance according to the length and properties of the cut grass 5 and the unburned cut grass when the cut grass 5 is thrown onto the rooster 2. 5 is selected such that it does not fall downward from the gap G of the rostral 2.

After a layer of the cut grass 5 having a certain height is formed on the rostrum 2, the burner 3 is ignited and fuel is supplied to the burner combustion chamber 7.
The air is blown into the burner combustion chamber 7 from the air blow-out pipe 4 by operating the blower 11.

Then, the cut turf 5 on the roaster 2 is dried and incinerated by the high-temperature combustion exhaust gas generated in the burner combustion chamber 7. At this time, the Rostor 2
Air A is ejected toward the gap G of the air A.
Is heated by the combustion exhaust gas and becomes hot air, and
Is blown into five layers of cut grass on the rostral 2 from the gap G of. As a result, the cut grass 5 is dried, and the sand mixed in the cut grass 5 is separated, so that the cut grass 5 is easily burned. Each grate rod 2a made of castable refractory having a prismatic shape is also heated by the combustion exhaust gas. As a result, the cut turf 5 on the Rostor 2
The grate rods 2a are also dried by the heat accumulated in the grate rods 2a, and are more easily burned.

The incineration ash generated by the burning of the cut grass 5 falls from the gap G of the rostr 2 into the burner combustion chamber 7 and is stored in the furnace bottom. At this time, each grate rod 2a
Is formed in an arc shape, the incinerated ash does not stay on the upper surface of each grate bar 2a, and the gap G between the grate bars 2a
From the burner combustion chamber 7 easily.
It should be noted that the gap G between the nozzle 4a of the air jet pipe 4 and the
However, since the nozzles 4a are formed at regular intervals in the air ejection pipe 4, the air
Of the gap G is hardly affected by the jet air A. As a result, the incinerated ash falls into the burner combustion chamber 7 from a portion that is not much affected by the jet air A, and the air A is jetted from the air jet pipe 4 toward the gap G of the rostr 2. Also, it does not hinder the fall of incineration ash.

On the other hand, the exhaust gas in the combustion chamber 6 is discharged from the exhaust gas outlet 1e to the atmosphere via the secondary combustion chamber and a dust collector (both not shown). At this time, in the secondary combustion chamber, the unburned substances contained in the exhaust gas are burned by the secondary burner 3, and the dust in the exhaust gas is collected in the dust collector. It has become so. as a result,
Detoxified exhaust gas is discharged into the atmosphere.

When the cut grass 5 in the furnace is completely incinerated to form incineration ash, the operation of the incinerator is temporarily stopped, the ash outlet 1f is opened, and the incineration ash accumulated in the furnace bottom is removed from here. Scrape out of the furnace. Thereafter, the inlet 1c is opened, and the cut grass 5 is thrown into the furnace by a fixed amount, and the incinerator is operated again to incinerate the cut grass 5.

In the incinerator of the above example, 5
The cut grass 5 piled up at a height of 00 mm to 600 mm can be completely incinerated in about 2 hours.

In the above incinerator, while fuel is burned by the burner 3 in the burner combustion chamber 7 formed below the rostr 2, air is ejected from the burner combustion chamber 7 toward the gap G of the rostr 2. Since the air A is ejected by the pipe 4, the air A ejected from the air ejection pipe 4 toward the gap G of the rostrus 2 is heated by the combustion exhaust gas,
The hot air is blown into the cut grass 5 layers on the roaster 2 from the gap G of the roaster 2. As a result, the cut turf 5 on the rostrum 2 is dried, and the cut turf 5 easily burns. Of course, the air A ejected from the air ejection pipe 4
Serves as the combustion air A, and can burn the cut grass 5 more easily. Rostor 2
Each grate rod 2a is formed into a prismatic shape by a castable refractory, so that each grate rod 2a is heated by the combustion exhaust gas. As a result, the mowing turf 5 on the rostrum 2 is also dried by the heat accumulated in each grate bar 2a, and is more easily burned. As described above, in the incinerator, the combustion efficiency is greatly improved by the air A jetted from the air jet pipe 4 and the heat accumulated in each grate bar 2a, and the running cost is reduced and the operating time is reduced. Shortening can be achieved.

In the above example, the furnace main body 1 is formed in a box shape, but in other examples, the furnace main body 1 may be formed in a cylindrical shape.

In the above example, the charging port 1c is formed in the ceiling wall of the furnace body 1, but in other examples,
The inlet 1c may be formed in the upper part of the side wall of the furnace main body 1.

In the above example, each grate rod 2a of the rostre 2 is formed in a rectangular column shape having a substantially rectangular cross section. In other examples, each grate rod 2a has a substantially rectangular cross section. It may be formed in a triangular rod shape.

In the above example, the cut grass 5 of the golf course was incinerated using the incinerator of the present invention. In other examples, the incinerator of the present invention was used for daily use. The incinerated materials 5 such as garbage and various industrial wastes discharged along with the daily life may be incinerated. In this case, the same operation and effect as described above can be obtained.

[0030]

As is apparent from the above description, in the incinerator according to the first aspect of the present invention, air is blown out from the air blow-out pipe disposed below the rostre toward the gap of the rostre. In addition, since the air is heated by a burner to generate hot air, the incinerated material on the roaster can be dried and burned reliably and easily. That is, in the incinerator of the present invention, since the heated air is blown from the gap of the roaster into the incinerated material on the roaster, the combustion efficiency is greatly improved, the running cost is reduced, and the operating time is reduced. Can be reduced.

In the incinerator according to the second aspect of the present invention, since each grate bar of Rostor is formed in a substantially prismatic shape by castable refractories, each grate bar is heated by combustion exhaust gas to generate heat. Will accumulate. As a result, the objects to be incinerated on the roaster are dried even by the heat accumulated in each grate bar, and are more easily burned. In addition, since the gap between the grate bars can be adjusted, even if the size or properties of the incinerated material changes, the incinerated material can be satisfactorily and reliably adjusted by adjusting the gap between the grate bars. Can be incinerated.

[Brief description of the drawings]

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

FIG. 2 is a sectional view taken along line AA of FIG.

[Description of References] 1 is a furnace main body, 1c is an inlet, 1e is an exhaust gas outlet, 1f is an ash outlet, 2 is a rooster, 2a is a grate rod, 3 is a burner, 4 is an air ejection pipe, 4a is a nozzle, 5 is incineration, 6
Is a combustion chamber, 7 is a burner combustion chamber, G is a gap, and A is air.

Continued on the front page (51) Int.Cl. ⁶ Identification code FI F23G 5/05 ZAB F23G 5/05 ZAB 5/16 ZAB 5/16 ZABB 5/44 ZAB 5/44 ZABG

Claims (2)

[Claims] 1. An inlet (1c) for an incinerated material (5) at an upper part thereof.
And an exhaust gas outlet (1e) and an ash outlet (1
f), a furnace body (1) formed therein, a roster (2) arranged in the furnace body (1) in a horizontal posture, and dividing the inside of the furnace into upper and lower parts, and a lower part than the roaster (2) and A burner (3) disposed at a lower side of the furnace body (1) and burning an incineration object (5) charged into a combustion chamber (6) above the roaster (2) from an input port (1c); A large number of air (A) blown out from a burner combustion chamber (7), which is disposed at the bottom of the furnace body (1) and is formed below the rostral (2), toward the gap (G) of the rostral (2). An incinerator comprising a plurality of air ejection pipes (4) provided with the nozzles (4a). 2. The roastle (2) is composed of a plurality of substantially prismatic grate bars (2a) formed of castable refractories, and the grate bars (2a) are arranged in parallel in the furnace at regular intervals. The gap (G) between the grate bars (2a) is arranged.
The incinerator according to claim 1, wherein the temperature of the incinerator can be adjusted.