JP3145548U - Incinerator - Google Patents

Abstract

An incinerator capable of efficiently incinerating waste is provided.
An incinerator 1 for incinerating waste w, a furnace main body 2 for containing the waste w, a supporting grate 3 for supporting the waste w in the furnace main body 2, and a furnace main body 2 A burner 4 for supplying combustion gas to the waste w, and the support grate 3 includes a lower support member 30 and a lateral support member 31 for supporting the waste w from below and from the sides, respectively. Arranged so that a space is formed between the lateral support member 31 and the inner surface of the furnace body 2, the burner 4 is the incinerator 1 disposed in the vicinity of the lower support member 30.
[Selection] Figure 2

Description

  The present invention relates to an incinerator for incinerating waste such as garbage.

  Conventionally, incinerators as shown in FIGS. 7 to 9 have been known as incinerators for incinerating waste. In addition, for example, an incinerator disclosed in Patent Document 1 has been known.

  A conventional incinerator 100 shown in FIGS. 7 to 9 includes a furnace main body 101 that stores the waste w, and a grate 102 disposed in the furnace main body 101. Further, the incinerator 100 includes a burner 103 installed in the furnace body 101.

  In the upper part of the furnace main body 101, a charging port 104 for charging the waste w into the furnace main body 101 is formed so as to open to the outside. In addition, an open / close lid 105 is provided above the furnace body 101 so as to cover the top of the charging port 104, and the open / close lid 105 is configured to be able to open / close the charging port 104. An insertion port 106 for inserting the burner 103 and an exhaust port 107 for discharging combustion gas are formed on the side wall of the furnace body 101.

  The grate 102 is configured by assembling iron bars in a lattice shape, and is fixed to the side wall of the furnace main body 101 and arranged horizontally.

  The burner 103 is inserted into the insertion port 106 and configured to be able to inject combustion gas into the furnace body 101.

According to the incinerator 100 having such a configuration, first, the waste w is accommodated in the furnace main body 101, and the burner 103 is operated in a state in which the open / close lid 105 is closed, whereby the combustion gas is supplied to the furnace main body 101. Inject into. The injected combustion gas is supplied to the waste w as shown by an arrow X in FIGS. 8 and 9, and the waste w is incinerated.
Japanese Utility Model Publication No. 5-61630

  However, in such an incinerator 100, the combustion gas injected into the furnace main body 101 is supplied only to the central part or upper part (w1 part in the figure) of the waste w, and the central part of the waste w There was a problem in that it was not sufficiently supplied to the side portions other than the upper portion and the lower portion (the portion w2 in the figure). For this reason, there was a problem that the entire waste w could not be incinerated sufficiently, and the waste w was left unburned. Further, in order to incinerate the unburned waste w, it was necessary to open the open / close lid 105, stir the waste w with a stirring rod (not shown), and then incinerate again. Therefore, there is a problem that labor is required and the amount of fuel used increases.

  The present invention has been made to solve the above problems, and an object thereof is to provide an incinerator capable of efficiently incinerating waste.

  The object of the present invention is an incinerator for incinerating waste, which includes a furnace main body for storing waste, a supporting grate for supporting waste in the furnace main body, and waste in the furnace main body. A burner that supplies combustion gas, and the support grate includes a lower support member and a lateral support member that support waste from the lower side and the lateral side, respectively, and the lower support member, the lateral support member, and the furnace It arrange | positions so that a space may be formed between the inner surface of a main body, and the said burner is achieved by the incinerator arrange | positioned in the vicinity of the said lower support member.

  According to such a configuration, the combustion gas supplied from the burner spreads below the lower support member and to the side of the lateral support member, so that the combustion gas can be supplied from below and from the side of the waste. Thus, in addition to directly heating the waste with the combustion gas, it is possible to heat from the periphery of the waste. Accordingly, since the entire waste can be heated with the combustion gas, it is possible to prevent unburned waste from being generated, and the entire waste can be efficiently incinerated.

  Moreover, in the said incinerator, it is preferable that the inner surface of the said furnace main body facing the said horizontal support member inclines with respect to a perpendicular direction. According to such a configuration, the space between the inner surface and the lateral support member can be narrowed by the inclination of the inner surface of the furnace body. Thereby, since the extra space in the furnace body can be narrowed, waste of heat of the combustion gas introduced into the furnace body can be prevented. Therefore, the combustion gas in the furnace body can be efficiently used for incineration of waste, and waste can be incinerated more efficiently.

  The lateral support member is preferably inclined with respect to the vertical direction. According to such a configuration, the waste can be collected and heated at the center of the furnace body by the inclination of the lateral support member. Thereby, waste can be incinerated more efficiently. In addition, if both the lateral support member and the inner surface of the furnace body facing it are inclined, the space between them can be made narrower. Thereby, the extra space in a furnace main body can be made narrower, and waste can be incinerated more efficiently.

  According to the incinerator of the present invention, waste can be incinerated efficiently.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a partially cutaway perspective view of an incinerator according to an embodiment of the present invention. 2 is a longitudinal sectional view of the incinerator, and FIG. 3 is an AA sectional view of FIG. FIG. 4 is a cross-sectional view of the incinerator.

  As shown in FIGS. 1 to 4, the incinerator 1 is a furnace for incinerating waste w. The waste w is, for example, a paper diaper or garbage, and may contain a lot of moisture. The incinerator 1 includes a furnace body 2 that accommodates the waste w. The incinerator 1 includes a supporting grate 3 disposed inside the furnace body 2 and a burner 4 installed on the wall of the furnace body 2.

The furnace body 2 is formed in a box shape from an iron casing and a castable refractory lined on the casing, and a combustion chamber 15 for incinerating the waste w is formed therein. The volume of the combustion chamber 15 can be, for example, to about 0.3m ² ~1.7m ^2. In addition, the furnace body 2 includes a horizontally disposed hearth 20, and a front wall 21, a lateral wall 22, and a rear wall 23 erected on the periphery of the hearth 20. Further, the furnace body 2 includes a ceiling portion 24 installed on top of the front wall 21, the lateral wall 22, and the rear wall 23.

  As shown in FIG. 2, the front wall 21 is erected, and an insertion port 14 for inserting the burner 4 is formed at an intermediate portion in the height direction. An ash outlet 16 is formed at the lower part of the front wall 21 for discharging the waste w that has become ash after incineration. A front support member 33 for supporting the waste w from the front side is fixed to an intermediate portion in the height direction of the front wall 21. As shown in FIG. 4, the front support member 33 is formed by assembling iron bars in a lattice shape. Further, as shown in FIG. 2, the front support member 33 is installed so as to be inclined with respect to the vertical direction, and is arranged so that the lower end portion protrudes toward the center portion in the furnace body 2. .

  As shown in FIG. 3, the horizontal wall 22 includes an inclined surface 10 on the inner surface in the intermediate portion in the height direction. The inclined surface 10 is configured to be inclined with respect to the vertical direction, and is formed so that the lower portion protrudes toward the center portion in the furnace body 2. Thereby, the lateral width of the combustion chamber 15 changes along the height direction, and the lateral width C1 of the combustion chamber 15 at the lower portion of the inclined surface 10 is narrower than the lateral width C2 of the combustion chamber 15 at the upper portion of the inclined surface 10. .

  As shown in FIG. 2, the rear wall 23 includes an inclined surface 11 on the inner surface in the intermediate portion in the height direction. The inclined surface 11 is configured to be inclined with respect to the vertical direction, and is formed so that the lower portion protrudes toward the center portion in the furnace body 2. Thereby, the front-rear width of the combustion chamber 15 changes along the height direction, and the front-rear width D1 of the combustion chamber 15 in the lower part of the inclined surface 11 is narrower than the front-rear width D2 of the combustion chamber 15 in the upper part of the inclined surface 10. It has become. The inclination angle of the inclined surface 11 of the rear wall 23 with respect to the vertical is substantially the same as the inclination angle of the inclined surface 10 of the lateral wall 22 with respect to the vertical. Further, an exhaust port 13 for discharging combustion gas is formed in the upper portion of the rear wall 23 so as to open to the outside. The exhaust port 13 is formed at a position above the insertion port 14 of the front wall 21.

  The ceiling portion 24 is formed with an input port 12 through which the waste w is input into the combustion chamber 15 so as to open to the outside. The ceiling 24 is provided with an opening / closing lid 5 that covers the top of the insertion port 12, and the opening / closing lid 5 is configured to be able to open and close the insertion port 12.

  The support grate 3 is subjected to hot-dip aluminum plating on the surface from the viewpoint of improving heat resistance. Further, the support grate 3 is configured in a bowl shape by assembling a plurality of iron bars in a lattice shape, and a lower support member 30 for supporting the waste w from below, and the waste w from the side. And a lateral support member 31 for supporting. In this specification, the lateral side of the waste w is not limited to the right side and the left side of the waste w, and is a concept including the entire surroundings of the front, rear, left and right of the waste w. In the present embodiment, as shown in FIG. 4, the lateral support member 31 is configured to surround the three directions around the waste w, and supports the left and right sides and the rear side of the waste w. Further, the front side of the waste w, that is, the side facing the front wall 21 is open without the lateral support member 31 being installed.

  As shown in FIG. 1, the lateral support member 31 is fixed to the lateral wall 22 and the rear wall 23 in the intermediate portion in the height direction of the furnace body 2, and the inclined surfaces 10 and 11 of the lateral wall 22 and the rear wall 23. It is installed so as to face. Further, the lateral support member 31 is installed so as to be inclined with respect to the vertical direction, and is arranged so that the lower end portion protrudes toward the center portion in the furnace body 2.

  The lower support member 30 is horizontally disposed so as to face the inner surface of the hearth 20. Further, the lower support member 30 includes a hook 32 attached to an edge portion, and the hook 32 is fixed to the lateral support member 31 by being hooked on the lower portion of the lateral support member 31.

  Further, as shown in FIG. 2, the support grate 3 is arranged so that a space for passing combustion gas is formed between the lower support member 30 and the lateral support member 31 and the inner surface of the furnace body 2. ing. More specifically, a space 7 through which combustion gas passes is formed between the lateral support member 31 and the inclined surfaces 10 and 11 of the lateral wall 22 and the rear wall 23. A space 8 is formed between the lower support member 30 and the inner surface of the hearth 20 for the combustion gas to pass through. Thereby, the combustion gas circulates or convects in the spaces 7 and 8.

  From the viewpoint of increasing the thermal load in the space 7 by narrowing the space 7 between the horizontal support member 31 and the inclined surfaces 10 and 11, the inclination angles of the horizontal support member 31 and the inclined surfaces 10 and 11 with respect to the vertical are made close to each other. The lateral support member 31 and the inclined surfaces 10 and 11 are preferably brought close to each other.

  In addition, as shown in FIG. 2, an auxiliary grate 6 is installed below the support grate 3 in the furnace body 2. The auxiliary grate 6 is configured by assembling iron bars in a lattice shape, and is fixed to the side wall of the furnace body 2 and arranged horizontally.

  The burner 4 may be a known burner in which fuel and air are mixed and then burned to inject combustion gas. The combustion gas is a concept including a flame when fuel is burned. The burner 4 includes an injection cylinder 41 for injecting combustion gas at the tip, and the injection cylinder 41 is inserted into the insertion port 14 so that the combustion gas can be injected into the combustion chamber 15. Moreover, the burner 4 is arrange | positioned in the vicinity of the lower support member 30, and is comprised so that the injected combustion gas may be supplied to the waste w. Further, the burner 4 is preferably arranged so that the lower end of the injection cylinder 41 is located slightly below the lower end of the lower support member 30.

  5 and 6 are diagrams illustrating details of the lower support member 30. FIG. As shown in FIG. 5, the width L <b> 1 of the lower support member 30 can be about twice as wide as the width L <b> 2 of the combustion gas G from the viewpoint of smoothly supplying the combustion gas around the waste w. . Further, from the viewpoint of sufficiently supplying the combustion gas below the waste w, as shown in FIG. 6, the distance L3 between the lower end of the lower support member 30 and the lower end of the injection cylinder 41 of the burner 4 is, for example, 2 to 2 It can be 3 cm.

  Next, a method for incinerating the waste w using the incinerator 1 configured as described above will be described.

  First, the combustion gas is supplied to the combustion chamber 15 by operating the burner 4 in a state where the waste w is accommodated in the furnace body 2 and the waste w is supported by the support grate 3. A part of the supplied combustion gas is directly injected into the waste w as shown by an arrow Y1 in FIGS. Further, as shown by the arrow Y2, the combustion gas is below the lower support member 30 and to the side of the lateral support member 31, that is, between the lower support member 30 and the lateral support member 31 and the inner surface of the furnace body 2. It spreads in the spaces 7 and 8 formed in the above and surrounds the periphery of the waste w. Then, the waste w is incinerated by the combustion gas that directly hits the waste w and the combustion gas around the waste w.

  Since the horizontal support member 31 is inclined, the waste w gathers in the center of the grate 3 as it is incinerated. Moreover, the incinerated waste w falls on the auxiliary grate 6 or the hearth 20 of the furnace body 2. Further, the combustion gas is discharged to the outside from the exhaust port 13 as indicated by an arrow Y3.

  Thus, according to the incinerator 1 according to the present embodiment, the support grate 3 includes the lower support member 30 and the lateral support member 31 that support the waste w from the lower side and the lateral side, respectively, and the lower support member 30 and the horizontal support member 31 and the inner surface of the furnace body 2 are arranged so that spaces 7 and 8 are formed, and the burner 4 is arranged in the vicinity of the lower support member 30, so The injected combustion gas is directly supplied to the waste w, and is supplied below the lower support member 30 and to the side of the lateral support member 31. Thereby, since combustion gas can be supplied to the whole waste w, it can prevent that the unburned residue of the waste w arises, and can incinerate the waste w efficiently. This is particularly effective when the waste w containing water is incinerated. In addition, since it is possible to prevent the waste w from remaining unburned, it is possible to save the trouble of stirring the unburned waste. In addition, since the waste w can be efficiently incinerated, the amount of fuel used as combustion gas can be reduced.

  Moreover, since the inner surface of the furnace body 2 facing the lateral support member 31 is inclined with respect to the vertical direction, the space between the lateral support member 31 and the inclined surfaces 10 and 11 can be narrowed. Thereby, the extra space in the combustion chamber 15 can be narrowed, and waste of heat of the combustion gas can be prevented. Therefore, the heat load can be increased, and the waste w can be incinerated more efficiently.

  Further, since the lateral support member 31 is inclined with respect to the vertical direction, the waste w supported by the support grate 3 can be collected at the center of the combustion chamber 15 and efficiently incinerated. Moreover, since both the inner surface of the furnace main body 2 and the horizontal support member 31 are inclined, the space between them can be made narrower and the thermal load can be made higher.

  As mentioned above, although one Embodiment of this invention was described, the specific aspect of this invention is not limited to the said embodiment.

  For example, in the present embodiment, the lateral support member 31 of the support grate 3 is inclined. However, if the waste w can be supported by the support grate 3, the lateral support member 31 may not be inclined. .

  Moreover, although the inclined surfaces 10 and 11 were formed in the side wall inner surface of the furnace main body 2, if the waste w can be incinerated, the inclined surfaces 10 and 11 are not necessarily required.

  Further, the positions where the input port 12 and the exhaust port 13 are formed are not particularly limited.

  Further, the lateral support member 31 surrounds the waste w from the three directions around it. However, this configuration is not particularly limited as long as the waste w can be supported from the lateral side. The structure which surrounds may be sufficient. Moreover, you may be comprised so that circumference 360 degrees may be enclosed.

  Moreover, in this embodiment, although the lower support member 30 was arrange | positioned horizontally, if the waste w can be supported from the lower side, the structure will not be specifically limited. FIG. 10 is a diagram illustrating the details of the lower support member. As shown in FIG. 10, the lower support member 30 may be arranged to be inclined with respect to the horizontal direction. The lower support member 30 is inclined downward from the rear side toward the front side. According to such a configuration, the combustion gas injected from the burner 4 passes through the lower support member 30 as indicated by the arrow Y2, passes through the space 8 below the lower support member 30, and the lateral support member 31. Is supplied to the side space 7. Therefore, the combustion gas can be easily and reliably supplied around the waste w.

  In the present embodiment, the inclined surfaces 10 and 11 are formed on the lateral wall 22 and the rear wall 23, but there is a space 8 in which combustion gas can be introduced between the inclined surfaces 10 and 11 and the lateral support member 31. If formed, this configuration is not particularly limited. FIG. 11 is a longitudinal sectional view of an incinerator according to another embodiment. 11, the same components as those in FIG. 3 are denoted by the same reference numerals and description thereof is omitted. As shown in FIG. 11, in other embodiment, the furnace main body 2 is provided with the inclination board 25 attached to the upright side wall 22 so that attachment or detachment was possible. The inclined plate 25 can be attached to a rear wall (not shown). The inclined plate 25 is formed in a flat plate shape from a castable refractory, and is disposed in the furnace body 2 so as to be inclined with respect to the vertical direction. Further, the inclined plate 25 is arranged such that the lower part protrudes from the upper part toward the center part in the furnace body 2. In addition, an inclined surface 10 is formed on the surface of the inclined plate 25, and the inclined surface 10 is disposed so as to face the lateral support member 31. According to such a configuration, since the combustion gas does not hit the horizontal wall 22 but hits the inclined plate 25, the horizontal wall 22 can be prevented from being damaged by heat. Thereby, durability of the incinerator 1 can be improved. Further, when the inclined plate 25 is damaged by heat, replacement and repair can be easily performed.

1 is a partially cutaway perspective view of an incinerator according to an embodiment of the present invention. It is a longitudinal cross-sectional view of an incinerator. It is AA sectional drawing of FIG. It is a cross-sectional view of an incinerator. It is a figure explaining the detail of a lower support member. It is a figure explaining the detail of a lower support member. It is a partially cutaway perspective view of the conventional incinerator. It is a longitudinal cross-sectional view of the conventional incinerator. It is a cross-sectional view of a conventional incinerator. It is a figure explaining the detail of a lower support member. It is a longitudinal cross-sectional view of the incinerator which concerns on other embodiment.

Explanation of symbols

w Waste 1 Incinerator 2 Furnace body 3 Support grate 4 Burner 6 Auxiliary grate 7 Space 8 Space 10 Inclined surface 15 Combustion chamber 30 Lower support member 31 Horizontal support member

Claims (3)

An incinerator for incinerating waste,
A furnace body containing waste,
A supporting grate for supporting the waste in the furnace body;
A burner for supplying combustion gas to the waste in the furnace body,
The support grate includes a lower support member and a lateral support member that respectively support waste from the lower side and the lateral side, and a space is formed between the lower support member and the lateral support member and the inner surface of the furnace body. Are arranged to be
The burner is an incinerator disposed in the vicinity of the lower support member.   The incinerator according to claim 1, wherein an inner surface of the furnace body facing the lateral support member is inclined with respect to a vertical direction.   The incinerator according to claim 1 or 2, wherein the lateral support member is inclined with respect to a vertical direction.

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