JP2004036913A - Waste incinerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To completely incinerate incinerated matters of various kinds and characteristics in safety by controlling the optimum combustion temperature, combustion time, combustion air quantity, and a mixing rate after construction. <P>SOLUTION: This waste incinerator comprises a charging port 1 for charging the incinerated matter, a main combustion chamber 20 having a grate supporting the incinerated matter charged from the charging port, a recombustion chamber 40 mounted continuously from the main combustion chamber 20 through a partition having a first opening part, a dust collection chamber 50 mounted continuously from the recombustion chamber 40 through a partition having a second opening part, a pierced wall 46 mounted between the recombustion chamber and the partition having the second opening part for straightening a gas, a chimney 60 for discharging the gas in the dust collection chamber 50, and a control mechanism mounted on the first opening part for controlling the amount of opening. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a waste incinerator, and relates to a waste incinerator that can cope with various incinerated materials such as paper, plastic, and garbage, and that can burn each incinerated material with optimal combustion efficiency.
[0002]
[Prior art]
In general, the types and properties of wastes are diverse, and it is very difficult to manage the operation of these waste incinerators. In particular, design conditions, such as a combustion temperature, a combustion time, a combustion air amount, and a mixing ratio, which are necessary as combustion conditions, vary depending on the components of waste. Further, the performance for determining the combustion temperature, the combustion time, the amount of combustion air, the mixing ratio, and the like largely depends on the shape and form of the incinerator main body.
[0003]
When the performance of the incinerator does not satisfy the necessary design conditions as described above, there is a problem that harmful exhaust gas such as CO and dioxin is released due to incomplete combustion of the incinerated material.
[0004]
[Problems to be solved by the invention]
In order to safely and completely burn various kinds of wastes with different types and properties, the design conditions such as the optimal combustion temperature, combustion time, combustion air amount, and mixing ratio are given to the wastes according to the components of each waste. There is a need.
[0005]
On the other hand, even if one element such as the components and the size of the incinerator, for example, the cross-sectional area of the opening is taken up, the incinerator such as the combustion temperature, the combustion time, the combustion air amount, and the mixing ratio as described above. Affects the performance of
[0006]
Therefore, the present invention makes it possible to adjust the furnace performance such as the optimum combustion temperature, the combustion time, the combustion air amount, the mixing ratio, etc. after the construction according to the incinerated materials having various types and properties. In other words, an object is to provide an incinerator with optimal combustion conditions.
[0007]
It is another object of the present invention to provide an incinerator with an excellent combustion balance, which can be adjusted after construction so that it can be adapted to the properties of the target incineration.
[0008]
[Means for Solving the Problems]
A waste incinerator of the present invention proposed to achieve the above-described object has a main combustion chamber having an input port into which incinerated material is charged, and a roster supporting the incinerated material input from the input port. A re-combustion chamber provided continuously in the main combustion chamber via a partition having a first opening, and a collection provided continuously in the re-combustion chamber via a partition having a second opening. A dust chamber, a perforated wall provided between the reburning chamber and the partition having the second opening and rectifying the gas, and a chimney provided at the top of the dust collection chamber and discharging gas from the dust collection chamber, An adjusting mechanism provided in the first opening to adjust an opening amount.
[0009]
In this waste combustion furnace, it is possible to set optimum combustion conditions by the adjustment mechanism.
[0010]
The adjusting mechanism preferably includes a moving wall provided between the main combustion chamber and the reburning chamber so as to be movable in the horizontal direction.
[0011]
By moving the moving wall to the left and right, the opening amount of the first opening can be adjusted.
[0012]
Further, the waste incinerator of the present invention includes a main door that opens and closes an inlet, and an auxiliary door that closes the inlet.
[0013]
This auxiliary door prevents air from flowing into the main combustion chamber when the inlet is opened.
[0014]
This auxiliary door is desirably made of a sheet-like member having flexibility.
[0015]
The auxiliary door made of a flexible sheet-like member closes the input port when the main door is opened.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, specific embodiments of a waste incinerator according to the present invention will be described with reference to the drawings.
[0017]
As shown in FIG. 1 and FIG. 2, the waste incinerator according to the present invention includes a main combustion chamber 20 for burning incineration 2 which is waste input from an input port 1, and a complete combustion chamber 20. A reburning chamber 40 for reburning unburned matter that has not been burned, a dust collecting chamber 50 for trapping and removing fine dust, harmful gas and the like contained in waste gas flowing from the reburning chamber 40, and a dust collecting chamber. And a chimney 60 that discharges the gas inside 50 to the outside.
[0018]
As shown in FIG. 2, the main combustion chamber 20 is provided with an inlet 1 into which an incinerated material 2 is injected at an upper portion. As shown in FIG. 6, a double door including a main door 4 and an auxiliary door 5 is provided at the input port 1. The main door 4 is provided with a pulley 14 at an upper part. In addition, a rail 13 is provided at an upper portion of the inlet 1. The main door 4 is suspended from above by the rail 13, and the pulley 14 slides on the rail 13, so that the main door 4 can move horizontally. Further, a handle 10 is provided on the main door 4. Therefore, the main door 4 can be opened in the horizontal direction. The main door 4 is normally closed at the input port 1 and is opened when the incinerated material 2 is input.
[0019]
The main door 4 is provided with an eave 6 so that the ceiling 12 covers the main door 4. The auxiliary door 5 is formed of a flexible sheet member from an eave 6 via a hinge 9. The flexible sheet member has, for example, a thin hanging curtain 7 such as ceramic wool in an approximately upper half thereof, and a fireproof cloth 8 on a lower side thereof. The auxiliary door 5 has a front surface composed of two doors on the left and right sides. The fireproof cloth 8 has a width capable of closing the input port 1 having a width that allows the main door 4 to move, and the height is set to a height at which the main door 4 is hidden. Is formed.
[0020]
As described above, the auxiliary door 5 is swingable with respect to the input port 1 by attaching the flexible sheet-like member via the hinge 9. Therefore, even when the main door 4 is opened when the incineration material 2 is charged, the auxiliary door 5 can prevent outside air from flowing into the main combustion chamber 20 and reduce a temperature change in the main combustion chamber 20. By providing the main door 4 and the auxiliary door 5, the main combustion chamber 20 can always be maintained at a high temperature, and the temperature change is reduced, so that stable combustion is possible. Further, the auxiliary door 5 can prevent a danger of burning when the incinerated material 2 is charged.
[0021]
As shown in FIG. 1, the main combustion chamber 20 has a substantially rectangular tube shape with a bottom as a whole, and a furnace wall 26 is formed of a refractory material 11 on an inner wall surface thereof. Further, the main combustion chamber 20 is provided with an ignition burner 25 at a lower part on the front surface as shown in FIGS. Combustion air is supplied to the main combustion chamber 20 from a furnace wall 26 on both sides of a side surface adjacent to a surface provided with the ignition burner 25 via a combustion air inlet 35. Therefore, the incinerated material 2 can easily come into contact with air.
[0022]
The furnace wall 26 provided in the main combustion chamber 20 has a step portion 39 as shown in FIG. The space between the opposing furnace walls 26 below the step portion 39 is formed smaller than the space between the opposing furnace walls 26 above the step portion 39. The step portion 39 has the rostrum 24 on the upper part thereof.
[0023]
As shown in FIG. 2 and FIG. 4, the roastles 24 are composed of an arch roster 24 c extending in the width direction of the furnace wall 26, two column-shaped rosters 24 b provided on each of the arch rostles 24 c, and The upper part is composed of a bar stole 24a extending in the longitudinal direction of the furnace wall 26. As described above, by combining a plurality of types of rostrules, the air permeability in the main combustion chamber 20 is improved, and the amount of the incinerated material 2 on the rostrles 24 is made uniform. As a result, the incinerated material 2 on the roastles 24 is evenly burned.
[0024]
The roaster 24 supports the large incinerated material 2 having the shape that has been charged. The burned incineration material becomes smaller in shape, and slides down from the gap of the rostral 24 to the lower part. Finally, the burned ash accumulates in the ash reservoir 23 at the bottom of the main combustion chamber 20.
[0025]
That is, a storage part 21 for storing the incineration material 2 is formed near the charging port 1, a combustion part for burning the incineration material 2 is formed near the rostral 24, and an ash reservoir in which ash after combustion is deposited at the bottom. A part 23 is formed. A trash layer 70 is formed in the storage section 21, a flame layer 71 and an oki layer 72 are formed in the combustion section 22, and an ash layer 73 is formed in the ash storage section 23.
[0026]
Therefore, in the main combustion chamber 20, as shown in FIG. 5, a garbage layer 70, a flame layer 71, an ox layer 72, and an ash layer 73 are sequentially formed from the upper portion where the charging port 1 is provided. In such a stacked state, the combustion air is supplied from the opposite side, and the combustion is performed from below by the ignition burner, whereby reverse combustion occurs in an ideal combustion state. At this time, the incinerated material 2 is always in contact with air while changing from flame combustion to oki combustion and ash. That is, the air required for combustion is always in contact with the incineration material, and for example, the oki can be incinerated with a smooth flow without being covered with ash. Therefore, incomplete combustion hardly occurs, and harmful substances such as CO and dioxin can be reduced.
[0027]
Further, the main combustion chamber 20 is provided with two inspection holes 27 on the front surface of the furnace wall 26 as shown in FIG. The inspection holes 27 allow the combustion state of the main combustion chamber 20 to be visually confirmed from the outside.
[0028]
Further, as shown in FIG. 4, the main combustion chamber 20 is provided with an ash outlet 28 and an ash door 34 near the ash reservoir 23. The ash outlet 28 allows the ash inside the ash reservoir 23 to be discharged. The ash door 34 allows the ash outlet 28 to be opened and closed. In the main combustion chamber 20, the amount of combustion air and the mixing ratio can be adjusted by an ejector blower 63 described later, and the combustion speed can be always kept constant.
[0029]
The partition 30 between the main combustion chamber 20 and the reburning chamber 40 is provided with a first opening 31 which is a flame passage. As shown in FIG. 3, the first opening 31 is located slightly below the mounting position of the bar roaster 24a, and has a vertically long shape. The lower side of the first opening 31 is located slightly above the bottom of the ashtray 23, and the partition 30 on the lower side of the first opening 31 is ash rising from the bottom of the ashtray 23. It functions as the separation bank 29.
[0030]
The ash separation bank 29 prevents incineration ash deposited in the ash reservoir 23 from entering the reburning chamber 40. In addition, the mounting position of the arch roster 24c is about 100 mm from the partition 30 having the first opening 31, so that unburned matter flowing into the reburning chamber 40 can be prevented from entering.
[0031]
As shown in FIGS. 7 and 8, the first opening 31 is provided with a movable wall 32 and a movable wall cover 33 which are movably provided. A sliding member 15 is provided below the moving wall 32. The sliding member 15 reduces friction with the floor surface.
[0032]
The moving wall 32 is provided between the main combustion chamber 20 and the re-combustion chamber 40, similarly to the partition 30. The moving wall 32 is movable by sliding in a groove between the hearths 16 and 17. The moving wall 32 can move only in a direction along the groove, that is, in a direction parallel to the partition wall 31 and in a horizontal direction. In the other directions, the moving walls 32 are moved by the hearths 16 and 17 and a fixed beam 36 described later. Regulated. The moving wall 32 constitutes an adjusting mechanism for adjusting the opening amount of the first opening 31 by sliding.
[0033]
In order to adjust the opening amount of the first opening portion 31, for example, when increasing the opening amount, a jack or the like is installed between the partition wall 30 and the moving wall 32, and this gap is pushed and widened. The moving wall 32 is moved outside the main combustion chamber 20. The jack used for the adjustment is removed from the partition 30 and the moving wall 32. When the opening amount of the first opening portion 31 is to be small, the moving wall 32 is pushed from outside the main combustion chamber 20 to be moved inside the main combustion chamber 20.
[0034]
The moving wall cover 33 surrounds a portion where the moving wall projects outside the main combustion chamber 20 when the moving wall 32 moves. After moving the moving wall 32, an auxiliary ash separation bank 38 is formed of a refractory material in a gap formed beside the ash separation bank 29. At the upper part of the moving wall 32, a fixed beam 36 having fire resistance is fixed by a hook 37 in order to support the wall of the refractory material 11.
[0035]
The reburning chamber 40 has a substantially rectangular shape, and a second opening 43 is provided in a partition 42 between the dust collecting chamber 50 and the reburning chamber 50. In the present embodiment, the second opening 43 is located above the reburning chamber 40 and near one side surface. A reburn burner 45 is provided on a part of the side wall of the furnace opposite to the second opening 43 at substantially the same height as the second opening 43. The reburn burner 45 receives oil from an oil supply device, and its flame reaches a perforated wall 46 described later, and heats and oxidizes gas passing through the perforated wall 46, so that it can be completely burned.
[0036]
The gas flowing from the main combustion chamber 20 into the reburning chamber 40 passes through the first opening 31 to increase the flow velocity of the gas, collides with the furnace wall 41 of the reburning chamber 40, and generates turbulent flow. I do. Due to this turbulence, the gas stays in the reburning chamber 40, and it is possible to increase the time during which the oxidation reaction is sufficiently performed. In the case where a large-sized unburned material is contained in the gas that has flowed in, the unburned material is crushed by collision with the furnace wall 41.
[0037]
The second opening 43 is opened apart from the first opening 31 in the front-back direction and the up-down direction of the gas flow path. Further, the opening area of the second opening 43 is slightly smaller than that of the first opening 31. Therefore, the turbulent region of the gas in the reburning chamber 40 increases.
[0038]
A perforated wall 46 is provided between the reburning chamber 40 and the partition 42 having the second opening 43. The perforated wall 46 is formed by a wall of a pipe made of ceramics or the like, and rectifies gas that is turbulent in the reburning chamber 40. The perforated wall 46 is heated to about 900 ° C. by the reburn burner 45. The heated perforated wall 46 heats and oxidizes the unburned matter gas passing through the perforated wall 46. When the unburned matter gas passes through the perforated wall 46, it is sufficiently heated and oxidized and burns completely. The reburning chamber 40 makes it possible to make the combustion time and the mixing ratio of the inflowing gas good, and the perforated wall 46 makes it possible to make the combustion temperature of the gas good.
[0039]
In order to create the best combustion state, it is advantageous to reduce the gap between the perforated walls 46, and a smaller pipe shape is more advantageous. For example, a pipe having an outer diameter of about 30 to 40 mm, an inner diameter of about 20 to 30 mm, and a length of 100 to 150 mm gives good results. The area of the perforated wall is about three times as large as the second opening 43, and a pipe is provided on the entire surface. The ceramic pipe forming the perforated wall 46 is made of a material having high heat conductivity and excellent heat resistance. For example, one using alumina or the like as a main raw material is used. When all the gas comes into contact with and passes through the perforated wall 46, the gas near the perforated wall 46 is kept at a high temperature state with respect to the ambient temperature in the reburning chamber 40. The combustion temperature is obtained.
[0040]
All the gas flowing from the main combustion chamber 20 into the reburning chamber 40 passes through the first opening 31. Further, the gas flowing from the main combustion chamber 20 into the reburning chamber 40 includes combustion air and completely burned gas in addition to the unburned matter gas. Since the first opening 31 is located on the outlet side of the main combustion chamber 20, the air collected from the ash outlet 28 is reburned in the state where the air for combustion is sufficiently heated in the main combustion chamber 20. It flows into the chamber 40.
[0041]
Further, the inside of the reburning chamber 40 is maintained at a high temperature by the ignition of the reburning burner 45 to be in a high oxidation state. Therefore, in the reburning chamber 40, an oxidation reaction occurs, and the unburned gas that has flowed in is reburned.
[0042]
As described above, the unburned matter gas generated in the main combustion chamber 20 flows into the reburning chamber 40 through the first opening 31 together with the high-temperature air. The unburned gas collides with the furnace wall 41 of the reburning chamber 40, generates turbulence, and is sufficiently mixed with the heated air. The mixed gas passes through the perforated wall 46 heated by the reburn burner 45 while being rectified. The gas passing through the perforated wall 46 is further heated by sufficiently contacting the perforated wall 46, becomes a highly oxidized state, is reburned, and is completely burned. The exhaust gas generated by the complete combustion flows into the dust collection chamber 50 through the second opening 43.
[0043]
As described above, the performance of the incinerator has a correlation with the turbulence region of the reburning chamber 40 and the perforated wall 46, and is determined by the shape and size of the reburning chamber 40 and the perforated wall 46.
[0044]
Incidentally, high-temperature exhaust gas generated by burning the incineration material 2 in the main combustion chamber 20 contains various components depending on the composition of the incineration material 2 in addition to carbon dioxide gas. For example, carbon contained in the exhaust gas is completely burned under the atmosphere of the high oxidation chamber in the process of passing from the first opening 31 to the inside of the reburning chamber 40 to the second opening 43. At this time, in the reburning chamber 40, the temperature of the atmosphere is usually 800 ° C. or higher. The temperature near the perforated wall 46 is 900 ° C. or higher.
[0045]
Therefore, the complete combustion reaction can be achieved in the reburning chamber 40 by adjusting the design conditions such as the combustion temperature, the combustion time, the amount of combustion air, and the mixing ratio. Since the gas that has passed through the perforated wall 46 can be completely burned, the value of harmful substances such as CO and dioxin can be drastically reduced.
[0046]
As described above, the performance of an incinerator that determines design conditions such as the combustion temperature, the combustion time, the amount of combustion air, and the mixing ratio is determined by the size and shape of the components of the incinerator. The properties of the incinerated material 2 vary, and if the optimum design conditions for the incinerated material 2 do not match the performance of the incinerator, problems such as a loss of combustion balance may occur. By adjusting the opening amount of the first opening 31, it is possible to adjust to an optimal design condition according to the properties of the incinerated material 2.
[0047]
For example, when the opening amount of the first opening 31 is made larger than the optimum condition, more gas flows out of the main combustion chamber 20 through the first opening 31 and thus the main combustion chamber 20. The furnace pressure in the furnace decreases, and a large amount of air flows into the main combustion chamber 20, and a large amount of incineration can be burned by the ignition burner 25. It becomes excessive, the combustion temperature decreases, and non-uniform partial combustion occurs.
[0048]
If the first opening 31 is smaller than the optimum condition, the gas flowing into the main combustion chamber 20 decreases, so that the furnace pressure in the main combustion chamber 20 increases. The gas in the main combustion chamber 20 whose furnace pressure has increased is blown out from the inlet 1, and a danger such as backfire occurs. Furthermore, only a small amount of air flows into the main combustion chamber 20 because the furnace pressure has increased. The decrease in the amount of inflow air increases the amount of generated CO, and makes the capacity of the ignition burner 25 insufficient.
[0049]
Thus, by adjusting the opening amount of the first opening portion 31, it becomes possible to change the furnace design conditions. That is, in the case of burning a polymer material such as plastic, by increasing the opening area of the first opening 31, a large amount of combustion air can be sent in, and the temperature is prevented from rising excessively. It is possible to obtain an optimum mixing ratio. Further, when burning substances such as vegetable residues and paper, the opening area of the first opening 31 is made small, so that the furnace pressure can be increased and a large amount can be burned. Therefore, the adjusting mechanism that adjusts the opening area of the first opening 31 can adjust the design conditions such as the combustion temperature, the combustion time, the combustion air amount, and the mixing ratio that are suitable for the properties of the incinerated material 2.
[0050]
Further, by adjusting the opening amount of the first opening portion 31, the opening amount of the incinerated material which has conventionally had a problem such as a loss of fuel balance due to passage of a large-sized unburned material can be reduced after the construction. By adjusting, it is possible to set the optimal combustion conditions.
[0051]
The dust collection chamber 50 is formed in a substantially cylindrical shape, and a water tank 51 is provided at the bottom. Further, the dust collecting chamber 50 is provided with a ball tap 53, a water supply device 52, and a water supply layer 56 outside thereof. The water tank 51 is connected to a water supply device 52 outside the furnace via a ball tap 53, and water is supplied from the water supply layer 56 by the water supply device 52, and is always maintained at a constant water level. In addition, a chimney 60 is formed on the ceiling of the dust collecting chamber 50 on the center axis thereof.
[0052]
Exhaust gas generated by combustion in the reburning chamber 40 flows into the dust collecting chamber 50 through the second opening 43. At this time, all the exhaust gas passes through the second opening 43. This exhaust gas contains fine dust or harmful gas.
[0053]
By the way, the second opening 43 is open in a direction along a tangent to the inner peripheral wall of the dust collecting chamber 50. Further, since the perforated wall 46 has a large number of through holes, the exhaust gas flowing into the dust collecting chamber 50 is rectified into an effective flow. The rectified exhaust gas flows in the dust collection chamber 50 while swirling to the bottom along the inner peripheral wall to form a primary swirling airflow. When the primary swirling airflow comes into contact with the water surface of the water tank 51, at the bottom of the dust collecting chamber 50, the central portion has a higher velocity than the surroundings and the moving radius is smaller than the primary swirling airflow. The next swirling airflow is generated. This secondary swirling airflow is sucked into the chimney 60 while swirling at a large speed, and thus a vacuum zone is generated in the center of the dust collection chamber 50.
[0054]
As a result, water is sucked up with a stronger force than the surface of the water tank 51, and the sucked-up water is turned into water droplets by the action of the secondary swirling airflow and scatters in the dust collection chamber 50.
[0055]
On the other hand, the water droplets sucked up to the vicinity of the chimney 60 are violently evaporated by the reduced pressure evaporation, whereby the temperature of the exhaust gas in the peripheral portion is reduced and the specific gravity is increased. Pushed out of the vacuum zone. Thereafter, the water vapor condenses again and falls as water droplets. In this way, in the vicinity of the chimney 60, condensed water droplets are actively generated and become mist, and when condensed, fine dust or harmful gas contained in the exhaust gas is captured.
[0056]
Thus, the dust collection chamber 50, as a self-spraying centrifugal dust collector, captures and removes fine dust or harmful gas contained in the exhaust gas that has flowed in.
[0057]
The treated gas from which fine dust or harmful gas has been removed in the dust collection chamber 50 is discharged to the outside through a chimney 60 above the dust collection chamber 50. An ejector nozzle 61 is provided at an intermediate portion of the chimney 60. An ejector blower 63 is provided outside the dust collecting chamber 50. The ejector nozzle 61 and the ejector blower 63 are provided with a blower tube 62 and are connected by the blower tube 62. The middle portion of the chimney 60 is supplied with air from the ejector blower 63.
[0058]
The mixing ratio between the exhaust gas discharged from the chimney 60 and the air is approximately 1: 1. Therefore, by supplying a large amount of air from the ejector blower 63 to the intermediate portion of the chimney 60, the suction pressure of the chimney 60 increases, and a large amount of exhaust gas is sucked from the dust collection chamber 50. Also, by reducing the amount of air supplied from the ejector blower 63 to the intermediate portion of the chimney 60, the suction pressure of the chimney 60 is reduced. In this way, by controlling the drive of the ejector blower 63, the amount of combustion air and the mixing ratio of the main combustion chamber 20 and the reburning chamber 40 are changed and controlled, and the incineration material 2 in the main combustion chamber 20 and the reburning chamber 40 is changed. It also has the function of adjusting the fuel balance.
[0059]
A thermocouple 47 is provided above the reburning chamber 40. When the temperature of the exhaust gas flowing through the second opening 43 is high, the thermocouple 47 controls the combustion performance of the ignition burner 25 or the reburn burner 45 so as to decrease the temperature. When the temperature is low, it is possible to control so as to increase the combustion capacity of the ignition burner 25 or the reburn burner 45.
[0060]
As described above, the amount of exhaust gas in the re-combustion chamber 40 depends on the combustion state of the incineration 2 in the main combustion chamber 20. In other words, adjusting the opening amount of the first opening 31 means adjusting the amount of gas flowing from the main combustion chamber 20 into the re-combustion chamber 40, and the combustion conditions of the main combustion chamber 20 change. Therefore, by adjusting the opening amount of the first opening portion 31, the amount of unburned matter gas, the amount of combustion air, and the burning time in the reburning chamber 40 can be adjusted. Further, the perforated wall 46 can adjust the combustion temperature of the combustion gas.
[0061]
As described above, in the present application, it is possible to optimize the combustion temperature, the combustion time, the combustion air amount, the mixing ratio, and the like, which are necessary as conditions for completely burning the incinerated material. The gas discharged from the chimney can have a minimum value for both CO and dioxin.
[0062]
In the incinerator of the above-described embodiment, the dust collection chamber 50 is configured as a self-spraying centrifugal dust collector, but may be, for example, a cyclone-type dust collector, and may include the rostrole 24, the perforated wall 46, and the like. It goes without saying that the configuration of the details is appropriately changed.
[0063]
【The invention's effect】
As described above, the waste incinerator of the present invention is provided with the adjusting mechanism for adjusting the opening amount in the first opening provided in the partition wall between the main combustion chamber and the reburning chamber. The optimum combustion temperature, combustion time, combustion air amount, mixing ratio, and the like can be adjusted after construction according to the incineration having various types and properties. That is, it is possible to provide an incinerator with optimal combustion conditions.
[Brief description of the drawings]
FIG. 1 is a horizontal sectional view of a waste incinerator according to the present invention.
FIG. 2 is a sectional view taken along line AA of FIG.
FIG. 3 is a plan view of the waste incinerator according to the present invention.
FIG. 4 is a front view of a waste incinerator according to the present invention.
FIG. 5 is a diagram showing a deposition situation of each layer of a combustion furnace of reverse combustion.
FIG. 6 is a side view of a main door and an auxiliary door provided at an insertion port.
FIG. 7 is a front view of a moving wall that adjusts an opening amount of a first opening.
FIG. 8 is a side view of a moving wall that adjusts an opening amount of a first opening.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Injection port, 2 Incineration material, 20 Main combustion chamber, 24 Rostor, 30 Partition wall, 31 First opening, 32 Moving wall, 40 Reburning chamber, 42 Partition wall, 43 Second opening, 46 Perforated wall, 50 Dust chamber, 60 chimneys

Claims (4)

A main combustion chamber having an input port into which the incinerated material is charged, and a rostrum supporting the incinerated material input from the input port,
A re-combustion chamber continuously provided in the main combustion chamber via a partition having a first opening;
A dust collection chamber continuously provided in the reburning chamber via a partition having a second opening,
A perforated wall provided between the reburning chamber and the partition having the second opening, and for rectifying gas;
A chimney provided at an upper portion of the dust collection chamber and discharging gas in the dust collection chamber;
A waste incinerator provided with the first opening and an adjustment mechanism for adjusting an opening amount. The waste incinerator according to claim 1, wherein the adjusting mechanism includes a moving wall provided between the main combustion chamber and the reburning chamber so as to be movable in a horizontal direction. The waste incinerator according to claim 1 or 2, further comprising a main door that opens and closes the inlet, and an auxiliary door that closes the inlet. The waste incinerator according to claim 3, wherein the auxiliary door is made of a flexible sheet-like member.

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