JPH0552523U - Incinerator - Google Patents

Abstract

(57) [Summary] [Purpose] When burning waste, ensure that water is supplied to dry distillation gas to perform water gasification and combustion. [Structure] The bottom face 3 side of the furnace chamber 2 is buried in the ground 1, and the input port 12 for the waste 11 is provided in the upper part. A chimney 10 is provided in the furnace chamber 2 via a flue 9. An air supply port 12 is provided facing the furnace chamber 2, and a jet water supply port 15 is provided facing the furnace chamber 2. [Effect] It is possible to surely perform the water gasification combustion by giving water to the dry distillation gas by the injection water supply port 15.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an incinerator for incinerating waste and the like.

[0002]

[Prior art]

 Conventionally, Japanese Utility Model Laid-Open No. 63-90728 discloses a furnace chamber in which a bottom side is opened and buried in the ground and a waste inlet is provided in the upper part, and a flue gas duct in this furnace chamber. It is configured by connecting a chimney through the furnace, and by injecting the waste into the furnace chamber, a part of the waste accumulated in the furnace chamber reaches the decomposition point by the combustion heat and is gasified. An incinerator has been proposed that burns flame-retardant materials such as polymer waste by absorbing water from the water and emulsifying the combustion gas for combustion.

[0003]

[Problems to be solved by the device]

 In the conventional technology, in order to emulsify the combustion gas, the bottom side of the furnace chamber is opened to absorb water from the ground by utilizing the capillary phenomenon, but in such a case, it is incinerated. The water content in the ground is restricted by the place where the furnace is installed or the residue of ash, etc., so that the water gasification combustion cannot be effectively performed.

The present invention solves the above problems and provides an incinerator that reliably supplies water to a gas and effectively burns a flame-retardant material while suppressing the generation of dust and NOx. It is intended.

[0005]

[Means for Solving the Problems]

 The present invention is a furnace chamber in which the bottom side is buried in the ground and a waste inlet is provided in the upper part, a chimney communicating with the upper part of the furnace chamber through a flue, and the air facing the furnace chamber. It is provided with a supply port and a water supply port facing the furnace chamber.

[0006]

[Action]

 With the above configuration, air and water are supplied from the air supply port and the water supply port to the dry-distilled gasified product in the furnace chamber, and the emulsification of the dry-distilled gas can be enhanced to reliably perform the aqueous gasification and combustion.

[0007]

【Example】

 Next, a first embodiment of the present invention will be described with reference to FIGS. The furnace chamber 2, which is buried in the ground 1 with its upper part shown in the figure, has a bottom surface 3 opened, and its inner wall is formed by a refractory caster 4 and its outer wall is formed by a heat-resistant concrete 5. A lid plate 6 made of an iron plate is provided on the upper surface of the furnace chamber 2, and a refractory caster 7 is provided on the lower surface of the lid plate 6. A flue 8 is laterally connected to the upper part of the furnace chamber 2, and a chimney 9 is provided on the other side of the flue 8.

An input port 11 for the waste 10 is provided in the upper part of the furnace chamber 2. Further, the wall of the furnace chamber 2 is provided with air supply ports 12 in multiple stages. The air supply ports 12 are provided so as to face the furnace chamber 2 and to an air supply pipe 13 embedded in the heat-resistant concrete 5. The air supply pipe 13 is connected to the blower 14. Further, a water injection port 15 which is a water supply port is provided on the wall of the furnace chamber 2 so as to face the furnace chamber 2. The jet water supply port 15 is provided inside the air supply port 12 in a double-pipe shape, and is connected to a water supply pipe 16 embedded in the concrete 5. The water supply pipe 16 controls pressure not shown. Can be connected to water pipes, pumps, etc. Reference numeral 17 in the figure denotes an opening / closing door that moves along a guide rail 18 provided at the inlet 11.

Next, the operation of the above configuration will be described. First, the opening / closing door 17 is opened, the waste 10 is sequentially charged into the furnace chamber 2 through the charging port 11, and finally, the combustion material and the auxiliary combustion material are charged to ignite, and the opening / closing door 17 is closed. Due to this ignition, the combustion products and auxiliary combustion products stacked on top of each other start to burn, and the waste heat under the combustion products and auxiliary combustion products is dried and gasified by this combustion heat, and dry distillation gasification combustion starts. Then, by repeating the dry distillation gasification and combustion, the combustion of the waste 10 is sequentially advanced. In this dry distillation gasification combustion state, the compressed air for combustion is supplied from the air supply port 12 to the furnace chamber 2 by the operation of the blower 14, and at the same time, the water from the injection water supply port 15 is compressed by the air supply port 13. The gas is supplied to the furnace chamber 2 in the form of spray by the air flow, and moisture is supplied to a part of the dry distillation gas, and gas molecules are in an emulsion state, and water gasification combustion occurs. Therefore, in the furnace chamber 2, the combustion becomes active due to the synergistic effect of dry distillation gasification combustion and water gasification combustion, and the supplied cold air is heated and pushed up to the ceiling of the furnace chamber 2, and the heated air is newly supplied. Phenomena such as falling with the generated cold air occur, and wavy pulsating combustion is generated in the furnace chamber 2, and the furnace chamber 2 is maintained at a high temperature, whereby almost complete combustion is performed. Furthermore, the combustion gas reaches the flue 9 and is exhausted from the chimney 10.

As described above, in the above embodiment, the bottom surface 3 side is buried in the ground 1 and communicates with the upper part of the furnace chamber 2 provided with the input port 11 for the waste 10 through the flue 9 in the upper part. A chimney 10 is provided, an air supply port 12 is provided so as to face the furnace chamber 2, and a spray water supply port 15 is provided so as to face the furnace chamber 2. Moisture is added to the carbonization gas by spraying from the spray water supply port 15. In addition, by reliably performing water gasification combustion, even if it is a flame retardant such as FRP, foamed plastic, or rubber such as tires, it is possible to suppress the generation of dust and NOx and perform almost complete combustion. . Further, since the jet water supply port 15 is provided as a double pipe inside the air supply port 12, the compressed air for combustion can be used to atomize the water, and the installation can be performed easily. Therefore, the running cost can be reduced.

The present invention is not limited to the above-described embodiment, and for example, as shown in FIG. 4, the nozzle portion 12A of the air supply port 12 may face the jet water supply port 15, and FIG. As shown, the steam pipe 22 may be made to face the main pipe 21 of the air supply pipe 13 like a venturi so that the air supply port 12 can also be used as the moisture supply port by steam. The water supply port may be provided separately, and a control valve may be provided to adjust the water pressure and the water amount of the water jet supply port. Further, although the bottom surface is opened in the embodiment, various modifications are possible such as the bottom surface may be formed by a fire resistant caster or heat resistant concrete.

[0012]

[Effect of the device]

 The present invention is a furnace chamber in which the bottom side is buried in the ground and a waste inlet is provided in the upper part, a chimney communicating with the upper part of the furnace chamber through a flue, and the air facing the furnace chamber. It is equipped with a supply port and a moisture supply port facing the furnace chamber.It reliably supplies water to the dry distillation gas from the injection water supply port to make the gas an emulsion state to cause water gasification and combustion, and Generation of dust and NOx can be suppressed, and flame-retardant waste can be burned almost completely.

[Brief description of drawings]

FIG. 1 is a partially enlarged sectional view showing a first embodiment of the present invention.

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

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

FIG. 4 is a sectional view showing a second embodiment of the present invention.

FIG. 5 is a sectional view showing a third embodiment of the present invention.

[Explanation of symbols]

 1 underground 2 furnace chamber 3 bottom 8 flue 9 chimney 10 waste 11 input port 12 air supply port 15 jet water supply port (moisture supply port)

Claims (1)

[Scope of utility model registration request] 1. A furnace chamber in which the bottom side is buried in the ground and a waste inlet is provided in the upper portion, a chimney communicating with the upper portion of the furnace chamber through a flue, and the furnace chamber facing the furnace chamber. An incinerator comprising an air supply port and a moisture supply port facing the furnace chamber.