JPH11237019A - Waste melting furnace - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit the stabilized melting treatment of incombustible matters to be treated as well as the simultaneous stabilized treatment of combustible matters to be treated by a method wherein a melting furnace is provided with an adjusting means, adjusting the amount of melting treatment in accordance with a detected level, detected by a level detecting means. SOLUTION: When an upper surface level is lower than a reference level, the supply of matters to be treated is maintained until a first level sensor 14A detects the matter to be treated on a deposit S and a second level sensor 14B detects the matters to be treated. When the level is higher than the reference level, the supply of matters to be treated is stopped. When a value, obtained by subtracting the accumulated melting amount of a present day from a set amount of melting treatment, is deviated to a negative side with respect to the reference difference, a target temperature is reduced and the target melting amount is also set so as to be reduced. When the difference is deviated to a positive side, the target melting amount is increased. According to this method, the stabilized treatment of combustible matters to be treated is permitted and even when the matters to be treated, such as waste sludge or the like which contain much amount of moisture, or waste, containing liquid, are charged, melting treatment can be effected without any trouble.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste melting furnace, and more particularly, to a waste melting furnace in which an inner cylinder is erected around a ceiling in which a combustor is arranged and a discharge port is formed in a bottom. Disposing a bottom outer cylinder outside the inner cylinder, configuring a lower space of the ceiling portion as a main chamber, forming a deposition portion of a workpiece between the outer cylinder and the inner cylinder, An object supply device that supplies an object to be processed is provided above the deposition unit, and a lower part of the deposition unit is communicated with the main chamber, so that the object to be processed is supplied from the deposition unit to the main chamber. The present invention relates to a waste melting furnace that is provided in a passage and provided with a cutting unit that cuts the object to be processed from the deposition unit and supplies the cut object to the main chamber.

[0002]

2. Description of the Related Art Conventionally, in a waste melting furnace, as shown in FIG. 4, an inner cylinder 6 is erected around a ceiling C in which a combustor 2 is arranged, and a discharge port 5 is provided at a bottom B. Is disposed outside the inner cylinder 6 to form a lower space of the ceiling C in the main chamber 1, and a space between the outer cylinder 8 and the inner cylinder 6 is formed. A workpiece supply device 10 for forming a workpiece S on the workpiece and supplying the workpiece above the deposition section S
The lower part of the stacking section S is communicated with the main chamber 1 to form an annular supply path 11 through which an object to be processed is supplied from the stacking section to the main chamber 1. The processing object supplied from the processing object supply device 10 was cut out from the deposition section S and supplied into the main chamber 1.

In the illustrated example, the inner cylinder 6 is fixed, the outer cylinder 8 is configured to rotate around the inner cylinder 6, and the cutting means 9 is arranged as shown in FIG. As shown in the figure, a plurality of cut pieces 9a protruding into the accumulation section S are attached along the circumferential direction of the inner cylinder 6.
That is, the stacking unit S includes the inner cylinder 6 together with the outer cylinder 8.
, The cut-out piece 9a is
, The object to be processed in the deposition section S is cut out.

Accordingly, the furnace inner surface F of the object supplied into the main chamber 1 through the annular supply passage 11 has a substantially inverted conical curved surface or an inverted elliptical surface. A molten slag surface melted by the heat of the combustion flame formed in the chamber 1 is formed, and the molten slag flowing down is dropped from the slag port 5 and collected by a slag recovery device (not shown) provided below. Will be processed.

[0005] In the above-mentioned waste melting furnace, incineration ash from an incinerator is melt-processed. Even if the amount of incineration ash is increased or decreased, the incineration ash can be temporarily stored in an ash pit. It was configured on the premise of processing. Therefore,
If the amount of the molten slag dropped into the slag recovery device is detected, and the temperature in the main chamber 1 is increased or decreased according to the increase or decrease of the molten slag dropped into the ash recovery device, a furnace is provided. The internal temperature was increased, and if the dripping amount was excessive, the furnace temperature was lowered to maintain a predetermined temperature in accordance with the increase and decrease of the molten slag, and the outer cylinder 8 was set in accordance with the processing amount. By rotating the workpiece at a predetermined speed, the amount of the molten material to be processed is maintained substantially constant, thereby maintaining a stable operation.

That is, since the amount of ash stored in the ash pit of the incinerator is allowed to vary, and the incineration ash of the incinerator is not directly received, the amount of incineration ash generated in the incinerator is reduced. Fluctuation did not matter.

A supply level sensor 14 comprising a vibration sensor for detecting an upper surface level L of the deposition section S on the upstream side in the rotation direction of the supply port 7a of the workpiece supplied from the workpiece supply apparatus 10 is provided. The rotation speed of the outer cylinder 8 is adjusted so that the upper surface level L is always maintained at the reference level Ls, or the supply amount of the workpiece from the workpiece supply device 10 is adjusted. To maintain the sealing effect of the object to be processed in the annular supply path 11,
Further, excessive deposition and excessive shortage of the object to be processed in the deposition section S are prevented (see FIG. 5).

[0008]

In recent years, in the process of melting wastes, for example, flammable materials such as separated garbage have been removed.
Attempts have been made to reduce the amount of fuel resources required to melt the target by injecting it together with non-combustible targets, such as incineration ash, and to use waste treatment facilities effectively. ing. For example, waste treatment equipment that mixes combustible waste such as separately collected garbage with incineration ash from an incinerator and supplies it to a melting furnace, or melts pyrolysis residue from a waste carbonization furnace There has been proposed an integrated incineration / melting treatment facility for treatment by leading to a furnace.

However, since the above-mentioned conventional waste melting furnace is intended only for melting incineration ash, the object to be treated is regarded as an incombustible object, and a small amount of combustible material such as char is contained. Simultaneous incineration is possible, and flammable objects as described above have not been treated. In other words, the conventional waste melting furnace is configured on the premise of the quantitative treatment of the non-combustible object, and by keeping the amount of the object to be treated in the accumulation part S substantially constant, the main chamber 1 The flammable gas generated in the main chamber 1 is prevented from leaking into the space above the deposition portion S or from leaking air from the space into the main chamber 1. By preventing explosion and preventing excessive accumulation of the object in the deposition section S, the supply of the object is stabilized, and the object is rotated at a predetermined speed set in accordance with the amount of the object. Thus, stable operation could be performed while maintaining the melting treatment speed of the mixture almost constant. That is, it is not configured to allow a large amount of combustibles in the object to be processed or to allow a change in the combustion loss.

[0010] Therefore, when it is intended to simultaneously treat the separated refuse and the combustible workpiece from the waste carbonization furnace together with the nonflammable workpiece, or treat the combustible workpiece such as the pyrolysis residue. In this case, the composition of these objects must be non-uniform, and the weight loss associated with the combustion of the combustible material is not constant. The surface, that is, the furnace inner surface F of the object to be processed retreats to the outer cylinder 8 side, and the periphery of the slag outlet 5 of the bottom B is exposed, which may cause damage to the bottom B, Further, the retreat of the furnace inner surface F creates a gap between the object to be treated in the deposition section S and the inner cylinder 6, and the flammable gas generated in the main chamber 1 generates There is a problem that it may circulate in the upper space and cause ignition. . Further, in the incineration-melting integrated processing equipment and the like, the supply amount of the object to be treated is determined by the amount of treatment in the waste carbonization furnace on the upstream side. It will be determined by the amount of the carbonization residue discharged from the carbonization furnace. Moreover, as described above, while the processing amount is detected based on the amount of the generated molten slag, when the flammable processing object such as the waste plastic is charged, the property of the processing object is fixed. In addition, since the fuel is self-burning, the amount of the molten processed varies, and does not correspond to the detected amount of the molten slag. Therefore, the furnace inner surface F
It is extremely difficult to prevent retreat.

Therefore, the waste melting furnace of the present invention solves the above-mentioned problems and enables simultaneous and stable treatment of combustible objects while enabling stable melting of non-combustible objects. The purpose is to:

[0012]

[Means for Solving the Problems] A first feature of the waste melting furnace according to the present invention for the above-mentioned purpose is that an inner cylinder is erected around a ceiling where a combustor is arranged. Along with disposing a bottomed outer cylinder having a slag port at the bottom outside the inner cylinder, the lower space of the ceiling portion is configured as a main chamber, and the outer cylinder and the inner cylinder are connected to each other. An object-to-be-processed deposition device is provided between the deposition unit and the object-to-be-processed supply device that supplies the object to be processed above the deposition unit, and the lower part of the deposition unit communicates with the main chamber. A waste melting furnace configured as an annular supply path through which the object to be processed is supplied to the main chamber, and provided with a cutting unit that cuts out the object to be processed from the deposition section and supplies the cut object into the main chamber. As described in Item 1, an upper surface of the processing object supplied from the processing object supply device and deposited on the deposition unit With arranging the level detecting means for detecting the level lies in that it is provided with adjusting means for adjusting the melt processing amount in accordance with the detection level by said level detecting means.

[0013] In a second aspect of the waste melting furnace according to the present invention for the above-mentioned object, the adjustment means in the first aspect may ensure that the detection level is a predetermined level. As described above, the present invention is characterized in that it is an input amount adjusting means for adjusting the input amount of the object to be processed from the object supply device to the deposition section.

[Functions and Effects of Each Characteristic Configuration] According to the above-mentioned first characteristic configuration, it is possible to adjust the melting processing amount of the entire object to be treated in accordance with the decrease in the amount of the combustible object due to combustion. In other words, the amount of the melt processed in the main chamber is adjusted so that the upper surface level is maintained within a predetermined range. As the upper surface level, the upstream side of the supply position of the object to be processed to the annular supply path is provided. By detecting the height position of the upper surface of the object to be processed, the weight of the object to be melted in the main chamber can be grasped. That is, since the object to be treated in the main chamber is reduced while maintaining the mortar-shaped inner surface shape, the upper surface level detected at the position on the upstream side corresponds to the reduced amount melted during almost one round. It is. Therefore, it is possible to detect both the amount of the melted non-combustible object and the loss of combustion of the flammable object, and to supply the object according to the reduction of the amount of the object due to the melting and burning of the object. The melting treatment of the processed object can be realized. As a result, while maintaining a stable melting process of the nonflammable workpiece, the sealing effect of the workpiece in the deposition unit is maintained, and the gas in the main chamber is prevented from rising to the space above the deposition unit. Even if a combustible object is simultaneously charged, stable processing can be performed.

According to the second characteristic configuration, it is possible to avoid a situation in which the processing object to be supplied into the main chamber runs short in the deposition section. In other words, it is effective for temporarily storing and batch-treating an object to be treated, such as when mixing and processing garbage with incineration ash. The input amount of the object to be processed into the deposition unit is reduced, and if the upper surface level is lowered, the input amount is increased, so that the level of the upper surface of the deposition unit can always be maintained within a predetermined range. Therefore, the upper surface level of the processing object cut out from the deposition section and supplied to the main chamber is always maintained at a predetermined level, so that it is possible to prevent excess or deficiency of the processing object in the main chamber. As a result, even when the properties of the workpieces to be introduced into the main chamber change or when the workpieces having different properties are supplied respectively, it is possible to stably supply the appropriate workpieces to the main chamber. Can be maintained.

As described above, each of the features of the present invention provides a distinctive function and effect. In any of the features, the object to be processed in the main chamber is irrespective of a change in the property of the object to be processed. Can be maintained in a stable manner, the change in the position of the furnace inner surface of the object to be treated is suppressed, and the sealing effect of the annular supply passage by the object to be treated is not impaired. Combustible gas in the main chamber can be prevented from flowing from the annular supply path to the space above the deposition section, and
Burnout of the bottom of the furnace due to receding of the furnace inner surface of the object to be processed in the main chamber can also be prevented.

[0017]

An embodiment of the waste melting furnace of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a longitudinal section of a main part of a waste melting furnace according to the present invention, FIG. 2 is a plan sectional view thereof, and FIG. FIG. The same elements as those described in the related art and elements having the same functions are described with reference to FIG.
5 and the same reference numerals as in FIG. 5, and a part of the detailed description is omitted.

In the waste melting furnace having the features of the present invention, the inner cylinder 6 is erected around the ceiling C where the combustor 2 is arranged and the slag is disposed on the bottom B, as shown in FIG. A bottomed outer cylinder 8 having a mouth 5 is arranged outside the inner cylinder 6, and a space below the ceiling C is formed in the main chamber 1. An object-to-be-processed supply device 1 comprising a screw feeder for forming an object-to-be-processed accumulation section S between the outer cylinder 8 and the inner cylinder 6 and supplying the object to be processed above the accumulation section S
0 is provided. Further, an annular supply path 11 is provided for supplying an object to be processed from the deposition section to the main chamber 1, and a lower portion of the deposition section S is communicated with the main chamber 1 to form the deposition section S.
A cutting means 9 is provided at a lower portion of the inner cylinder 6 so as to cut out the object to be processed and supply it into the main chamber 1.

Level detecting means 12 comprising a distance sensor 13 for detecting the upper surface level L of the object to be processed, which is supplied from the object to be processed supply device 10 and is deposited on the deposition section S.
Are arranged as a feature of the present invention, and
The upper surface level L of the object to be processed after cutting out is detected,
The amount of weight loss associated with the processing of the object in the main chamber 1 can be ascertained. In order to maintain the upper surface level L at a predetermined reference level Ls (see FIG. 3), an adjusting means 20 for adjusting the supply amount of the workpiece in accordance with the level detected by the level detecting means 12 is provided.

The outer cylinder 8 is supported on an annular support portion and rotated by a drive motor via an annular rack provided around the outer cylinder 8 in order to rotate relative to the fixed inner cylinder 6. It is so. For this purpose, the outer cylinder 8
An annular groove is formed on the outer periphery of the upper part of the inner cylinder 6 and projects from the outer periphery of the inner cylinder 6 to cover the deposition portion S from above.
Extending downwardly to the annular groove and extending downwardly,
A water seal mechanism is formed in the annular groove to keep the inside of the furnace airtight. A supply port 7a for the processing object from the processing object supply device 10 is formed in the overhang portion 7, and the processing object supply device 10 is airtightly connected.

A burner 2a for premixing fuel gas and air therein for forming a combustion flame in the main chamber 1 is disposed at the center of the ceiling C. The combustor 2 is configured by arranging a plurality of air supply units 2b for supplying air in a direction inclined inward in a peripheral portion. A fuel supply path 3 for supplying fuel and an air supply path 4 for supplying air are connected to the burner 2a. A fuel control valve 3a is provided in the fuel supply path 3, and air is supplied to the air supply path 4. A control valve 4a is provided to vary the supply amounts of fuel and air separately, and an air control valve 4b is also provided in the air supply path 4 to the air supply unit 2b to provide the air supply valve 4b. The in-furnace temperature control means 2 is configured so that the air supply amount can be adjusted independently of the burner 2a, and controls the fuel control valve 3a and the air control valves 4a and 4b individually.
1 enables the melting control in the furnace.

The cut-out piece 9a of the cut-out means 9 serves to scrape the object to be processed into the main chamber 1. The cut-out piece 9a is provided obliquely with the lower side in the rotation direction of the outer cylinder 8 directed inward. A plurality of plate members are circumferentially arranged along the lower end of the inner cylinder 6. The inner surface of the furnace at the lower part of the lower end of the inner cylinder 6 scrapes the object to be processed in the deposition section S toward the main chamber 1. Therefore, if the relative rotation speed of the cut piece 9a with respect to the deposition portion S increases, the amount of the object to be processed cut from the deposition portion S increases. Thus, the cut piece 9
The processing object cut out by a forms the furnace inner surface F in the main chamber 1 together with the processing object previously deposited on the bottom B of the main chamber 1. Here, if the amount of the melting process in the main chamber 1 increases and the furnace inner surface F recedes, the workpiece cut out by the cutting pieces 9a rapidly moves along the furnace inner surface F. And at the same time, the upper surface of the deposition portion S is lowered. Thus, as shown in FIG. 3, a reference level Ls, which is a target level, is set to the upper surface level L of the deposition section S in order to maintain the amount of the melt processing within an appropriate range. FIG. 3 is a longitudinal cross-sectional view of the vicinity of the supply port 7a in the circumferential direction when the deposition portion S is viewed from the outside of the outer cylinder 8, and the rotation direction of the outer cylinder 8 is indicated by an arrow.

As the level detecting means 12, the lower side of the cut-out upper surface S1 is located on the upper side in the relative rotation direction of the supply port 7a with respect to the stacking section S in order to determine the degree of lowering of the upper surface of the stacking section S. Distance sensor 13 for detecting distance
The ultrasonic level gauge 13A as the lower part of the inner cylinder at the lowest position of the cut-out upper surface S1 below the supply port 7a of the workpiece supply device 10 and on the upstream side in the relative rotation direction of the deposition unit S. 6 and attached to the side of the inner cylinder 6 (see FIG. 3). The ultrasonic level meter 13A
The reference level Ls is set with respect to the upper surface level L which is the detection level of. The reference level Ls includes an upper surface level L of the cut upper surface S1 corresponding to a case where the amount of the melting process is reduced in the main chamber 1 where the melting process is normally performed.
Is set.

Further, on the lower side of the supply port 7a in the relative rotation direction, the workpiece supply device 1
As a supply level sensor 14 for detecting the level of the upper surface of the object supplied from 0, a pair of upper and lower vibrating level sensors is provided at a position below a supply port 7a of the object to be processed to the deposition section S. It is arranged at the normal position on the upper surface of the processing object and above it. The lower first level sensor 14A is also provided in a conventional waste melting furnace, and supplies the amount of the workpiece from the workpiece supply device 10 when the detection level is equal to or higher than the reference level Lt. Used to control the
The upper second level sensor 14B is used to control the supply amount of the workpiece from the workpiece supply device 10 when the detection level is lower than the reference level Lt. By using the supply level sensor 14 together, the amount of the melting process is determined based on whether the level is above or below the upper surface level L detected by the ultrasonic level meter 13A or the reference level Lt, and an appropriate amount of the processed material is determined. Maintain the supply of goods. As described above, the feed amount adjusting means 23 for adjusting the supply amount of the workpiece from the workpiece supply device 10 according to the output of the supply level sensor 14 is provided.

As described above, the pair of upper and lower supply level sensors 14 are selected according to the amount of the melting process in the furnace, and the first level sensor 14A is connected to the upper surface of the object to be processed in the deposition section S. Is rising, and the amount of melting is decreasing, the supply amount is suppressed as a reference point of the supply amount of the processing object from the processing object supply device 10, and the second level sensor 14B is The supply amount is increased as a reference point for the supply amount of the processing object from the processing object supply device 10 when the melting processing amount is increasing. With such a configuration, even when the amount of the molten processing in the main chamber 1 is increased or decreased, the amount of the object to be processed in the deposition unit S can be appropriately maintained. Therefore, it is possible to prevent the flammable gas in the main chamber 1 from flowing into the space above the deposition unit S due to an insufficient amount of the object to be processed in the deposition unit S.
It is possible to prevent the upper surface of the deposited portion S of the supplied processing object from becoming abnormally high, thereby preventing the supply of the processing object into the main chamber 1 from being disturbed.

To explain an actual example of the control of the supply of the object to be processed, when the upper surface level L detected by the distance sensor 13 of the level detecting means 12 is lower than the reference level Ls, By judging that the amount of the melt processing of the processing target is large, the supply of the processing target from the processing target supply device 10 detects the processing target on the deposition unit S by the first level sensor 14A, and The processing is maintained until the object is detected by the second level sensor 14B.
The processing is temporarily stopped by the detection of the object to be processed by 4B. This supply is restarted when the second level sensor 14B stops detecting the object to be processed. Further, when the upper surface level L detected by the distance sensor 13 is equal to or higher than the reference level, it is determined that the amount of the molten processing in the main chamber 1 is small,
When an object to be processed is detected on the deposition unit S by the first level sensor 14A, the supply of the object to be processed by the object supply device 10 is temporarily stopped, and the object to be processed is detected by the first level sensor 14A. If not, supply of the processing object is restarted.

At the time of supplying and stopping the object to be processed, the deviation obtained by subtracting the accumulated fusion processing amount of the day from the set fusion processing amount that has been set has a range on the negative side with respect to the preset reference deviation. When deviating, it is determined that the cumulative input amount exceeds the set melting processing amount,
The target temperature of the main chamber 1 is reduced to a lower value (the revised temperature is set to 1300 ° C. as a lower limit), and the target melt processing amount is set to a smaller value (however, the lower limit is set to 80% of the reference melt processing amount). Further, when the deviation deviates to the positive side with respect to the reference deviation, it is determined that the cumulative input amount is less than the set melting processing amount, and in order to avoid insufficient melting processing of the workpiece. In addition, the target temperature of the main chamber 1 is increased to a higher value (the revised temperature is set at an upper limit of 1450 ° C.), and the target melting processing amount also increases (however, the reference melting processing amount of 12%).
0% is the upper limit). If the deviation is within the upper and lower limits of the reference deviation, it is determined that the melting process is being performed properly, and the process is continued without changing various conditions.

As a result of the above-described configuration, even if flammable waste is introduced into the furnace as an object to be treated, the amount of the object to be treated in the main chamber 1 is reduced more than the amount of the melting treatment due to the decrease in combustion. Or, if the required amount of heat up to the melting treatment of non-combustible waste is high, for example, even if the waste to be treated, such as waste sludge containing a large amount of water, or liquid containing, is thrown in,
The melting process can be performed without any trouble.

Next, another embodiment of the present invention will be described. <1> In the above embodiment, the outer cylinder 8 is rotated with respect to the fixed inner cylinder 6, and the cutout piece 9 a provided at the lower portion of the inner cylinder 6 is moved relative to the upper surface of the deposition portion S. The example in which the object to be processed of the deposition unit S is cut out into the main chamber 1 by rotation has been described, but the outer cylinder 8 is fixed, and the inner cylinder 6 is rotated with respect to the outer cylinder 8. You may be comprised so that it may make it. Further, the inner tube 6 is fixed relatively to the outer tube 8, and the cut-out piece 9 a is rotated relative to the inner tube 6 or the outer tube 8, and the stacking section S It may be configured to rotate with respect to.

<2> In the above embodiment, as the level detecting means 12, the lower side of the upper surface of the accumulation section S is located on the upstream side in the rotation direction of the outer cylinder 8 with respect to the accumulation section S of the supply port 7a. The example in which the distance sensor 13 for judging the degree and detecting the descent distance of the cut-out upper surface S1 after cutting with the cut-out piece 9a has been described.
May be another type of level detecting means, for example, a type using a laser distance meter, or a type using a vibration type level sensor similar to the supply level sensor 14. . When using the vibration type level sensor, it may be arranged at a plurality of positions (for example, a normal position, an upper limit position, a lower limit position, and the like), and may be arranged at a part thereof.

<3> In the above embodiment, the level sensor 1 is composed of the distance sensor 13 and the supply level sensor 14.
2, the level detecting means 12 may be constituted by either the supply level sensor 14 or the distance sensor 13.

<4> In the above embodiment, the example in which one workpiece supply device 10 is arranged has been described with reference to FIG. 1, but the workpiece supply device 10 separates and supplies the workpiece. A plurality of units may be arranged so that, for example, a unit that supplies non-combustible materials to be treated such as incineration ash and a unit that supplies combustible waste such as sorted waste such as plastic are separately provided. It may be provided. As described above, if the flammable object and the non-combustible object are configured to be individually supplied and the supply amounts can be controlled respectively, the properties of the object in the furnace can be reduced. And the amount of the non-combustible material to be melted can be stably maintained. Further, a supply device for supplying a liquid waste such as a waste oil or a waste liquid slurry may be separately provided.

<5> In the above embodiment, an example in which the adjusting means 20 is provided with the in-furnace temperature adjusting means 21 and the charging amount adjusting means 23 has been described.
May be provided with only one of them,
The cutout adjusting means 22 shown in the above <2> may be provided together with the in-furnace temperature adjusting means 21 or the charging amount adjusting means 23 or both.

<6> In the above embodiment, the distance sensor 13 and the supply level sensor 14
However, the level detecting means 12 may include only a detecting means corresponding to the distance sensor 13. In this case, the type of the detecting means corresponding to the distance sensor 13 may be the same type as the supply level sensor 14.

<7> In the above embodiment, the actual example of the control of the supply of the object to be processed has been described. However, the above conditions are only examples, and the conditions may vary depending on the type of the melting furnace and other specifications. Naturally, they are different, and the above conditions do not restrict the configuration of the present invention.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an example of a waste melting furnace according to the present invention.

FIG. 2 is a cross-sectional plan view of a main part of the waste melting furnace shown in FIG.

FIG. 3 is a longitudinal sectional view of a main part of the waste melting furnace shown in FIG.

FIG. 4 is a longitudinal sectional view of a main part showing an example of a conventional waste melting furnace.

FIG. 5 is a longitudinal sectional view of a main part of the waste melting furnace shown in FIG. 4 as viewed from an outer peripheral side;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 main chamber 2 combustor 5 slag port 6 inner cylinder 8 outer cylinder 9 cutout means 10 workpiece supply device 11 annular supply path 12 level detection means 20 adjustment means 21 furnace temperature adjustment means 22 cutout adjustment means 23 injection Amount adjustment means B Bottom part C Ceiling part S Deposition part

Claims (2)

[Claims] 1. A ceiling (C) on which a combustor (2) is arranged.
And a bottomed outer cylinder (8) having a bottom (B) formed with a slag port (5) disposed outside the inner cylinder (6). Thus, the lower space of the ceiling (C) is configured as a main chamber (1), and a deposition portion (S) of a workpiece is formed between the outer cylinder (8) and the inner cylinder (6). An object supply device (10) for supplying an object to be processed is provided above the depositing section (S), and a lower portion of the depositing section (S) is communicated with the main chamber (1). From the main room (1)
And a cutting means (9) configured to form an annular supply path (11) through which the processing object is supplied, and to cut out the processing object from the deposition section (S) and supply the processing object into the main chamber (1). A waste melting furnace provided, wherein a level detecting means (12) for detecting an upper surface level of the processing object supplied from the processing object supply device (10) and deposited on the deposition section (S) is arranged; A waste melting furnace provided with an adjusting means (20) for adjusting the amount of melting treatment according to the level detected by the level detecting means (12). 2. An amount of the object to be processed fed from the object supply device (10) to the deposition section (S) so that the adjusting means (20) secures a detection level at a predetermined level. The waste melting furnace according to claim 1, which is an input amount adjusting means (23) for adjusting the amount of the waste.