JP3752407B2 - Large waste carbonization furnace - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to a technical field related to a large-sized waste carbonization furnace that performs a carbonization process on large-scale waste such as ships and houses without incineration.
[0002]
[Prior art]
Conventionally, as a dry distillation furnace (dry distillation incinerator), for example, the one described in JP-A-5-180425 is known. As an improvement on the technique described in this publication, the present applicant has previously proposed Japanese Patent Application No. 11-101267.
[0003]
These conventional technologies are equipped with a closed-type furnace body that is supplied with waste from the top and discharges the residue from the bottom of the waste. The waste is removed by dry distillation and incineration. Process.
[0004]
[Problems to be solved by the invention]
In the above-described conventional technology, since the dry distillation process is performed on the premise of the incineration process, there is a problem that a large-scale air pollution control facility corresponding to the incineration process must be provided.
[0005]
Furthermore, in order to throw in large-scale waste, there is a problem that it is necessary to perform crushing as pretreatment.
[0006]
The present invention has been made in consideration of such problems, and it is intended to provide a large-sized waste retorting furnace capable of almost completely treating large-scale waste by dry distillation without performing incineration. Let it be an issue.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the dry distillation incinerator according to the present invention employs the following means.
[0008]
That is, in claim 1, a cylindrical furnace body whose upper end is opened as a large-sized waste inlet, and a furnace body that is detachable from the furnace body inlet and connected to the furnace body to have a sealed structure. A cap body, a tilting mechanism for supporting the furnace body and tilting the furnace body, an inert gas introduction means for introducing a high-temperature inert gas into the interior of the furnace body, and a lower part of the furnace body A crushing mechanism that crushes large waste that is installed in the furnace body, a discharge port that is provided at the bottom of the furnace body and discharges residue from the large waste, and is assembled around the discharge port. said cap body Rutotomoni a residue product recovery chamber of the closed structure, said furnace body during carbonization process from the top when it is erected vertically and the furnace body, the residue was collected chambers are assembled vertically It is structured vertically .
[0009]
With this means, the cap body is detached and tilted to the side of the furnace body by the tilting mechanism, and the large waste is inserted into the furnace body from the sideways charging port while being sideways. The furnace body into which the large-scale waste is charged is erected by a tilting mechanism and becomes a sealed structure by connecting the cap body. Large waste is subjected to dry distillation treatment with an inert gas introduced from an inert gas introduction means inside the furnace body, and is crushed by a crushing mechanism after the dry distillation treatment. Further, when the residue is discharged from the furnace body, the hermeticity of the furnace body is maintained by the residue collection chamber having a sealed structure, and combustion inside the furnace body is prevented.
[0010]
Further, according to claim 2, in the large-sized waste retorting furnace according to claim 1 , a transport means for transporting the residue to the outside of the residue collection chamber while avoiding contact with the outside air is connected to the residue collection chamber. Features.
[0011]
With this means, when the residue is transported from the residue collection chamber, the hermeticity of the residue collection chamber is maintained.
[0012]
According to a fourth aspect of the present invention, in the large waste carbonization furnace according to the first or second aspect , the furnace body is provided with an inclined structure inclined downward toward the discharge port.
[0013]
In this means, the fluidity toward the discharge port is imparted to the waste and residue inside the furnace body by the inclined structure.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a large-sized waste carbonization furnace according to the present invention will be described with reference to the drawings.
[0015]
As shown in FIGS. 1 and 2, the large-sized waste carbonization furnace A of this embodiment is configured in a vertical type in which a cap body 1, a furnace body 2, and a residue collection chamber 3 are vertically assembled from above. ing.
[0016]
The cap body 1 is configured to be movable up and down immediately above the furnace body 2, and is configured to be lowered and connected to and raised from the furnace body 2. The cap body 1 can seal the furnace body 2 by being connected to the furnace body 2 by descending connection.
[0017]
A generated gas recovery pipe 4 that recovers the generated gas a generated inside the furnace body 2 is detachably connected to the cap body 1. The generated gas recovery pipe 4 sends the generated gas a to the generated gas processing facility B (see FIG. 5). The generated gas processing facility B processes the generated gas a so that it can be used for various purposes such as oil recovery. In addition, the part where generated gas a is not used is discharged | emitted in air | atmosphere via the exhaust gas equipment C and the smoke exhaustion equipment D which are air pollution countermeasure equipment. These exhaust gas equipment C and smoke exhaust equipment D can be handled with a much simpler and smaller scale than the air pollution control equipment for incineration.
[0018]
The furnace body 2 is formed of a refractory material, and a dry distillation chamber 21 for a large waste b is formed therein. The dry distillation chamber 21 is provided with an inclined structure formed of an inclined hearth 22 formed in a rectangular tube shape, and an upper end is opened to serve as an inlet 25 for large waste b.
[0019]
In the vicinity of the hearth 22 of the furnace body 2, an inert gas introduction means 5 for introducing an inert gas c made of high-temperature low-oxygen gas into the dry distillation chamber 21 is connected. As the inert gas introduction means 5, an inert gas introduction nozzle 8 that opens to the dry distillation chamber 21 can be employed. The inert gas introduction nozzle 5 is supplied through a path shown in FIG. 5 as described later.
[0020]
The lower part of the furnace body 2 is supported by a tilting mechanism 6 made of hydraulic equipment or the like. The tilt mechanism 6 can tilt the axis of the furnace body 2 from vertical to horizontal.
[0021]
In addition, a discharge port 23 is formed on the lower side of the hearth 22 of the furnace body 2 for discharging the residue d remaining after the large-scale waste b is subjected to dry distillation treatment from the dry distillation chamber 21. The discharge port 23 is provided with a shutter device 24 that opens and closes up and down to ensure the sealing of the furnace body 2.
[0022]
The residue collection chamber 3 is provided outside the discharge port 23 of the furnace body 2. The residue collection chamber 3 is formed in a sealed structure surrounding the discharge port 23 of the furnace body 2 so that the residue d can be deposited.
[0023]
The residue collection chamber 3 is connected to a transport mechanism 7 including a screw conveyor that transports the residue d while avoiding contact with outside air.
[0024]
The residue d transported by the transport mechanism 7 is put into an inert gas generation facility E as shown in FIG. The inert gas generation facility E is introduced into the large-sized waste retorting furnace A by mainly burning carbon from the carbon-based residue d generated and discharged in the large-sized waste refining furnace A. An inert gas c is generated. The inert gas c is composed of, for example, a low oxygen gas having a composition of CO2: 14.09%, SO2: 0.03%, H2 O: 9.05%, and air: 8.06%. The low oxygen gas can ensure safety by preventing explosion, overcombustion, etc. in the large waste carbonization furnace A. The inert gas generation facility E is provided with heating means as necessary, and heats the inert gas generation facility E to about 700 ° C.
[0025]
The residue d transferred from the large-sized waste carbonization furnace A to the inert gas generation facility E is further transferred to a melting facility F connected to the inert gas generation facility E. The melting facility F melts the residue d by combustion of a burner (not shown) supplied with air e and oil f and discharges it as sludge g. The high-temperature combustion gas h generated by the melting facility F is used as an inert gas c introduced into the large-sized waste carbonization furnace A. In addition, about the conveyance of the residue d from the inert gas production | generation equipment E to the fusion | melting equipment F, it is performed in the state from which the contact with external air was interrupted | blocked. A part of the air e supplied to the burner is sent to the inert gas generation facility E.
[0026]
The inert gas c generated by the inert gas generation facility E and the melting facility F is introduced into the large-size waste dry distillation furnace A through the inert gas assembly facility G. The inert gas assembly facility G homogenizes the components, temperatures, and the like of the inert gas c generated by the inert gas generation facility E and the melting facility F.
[0027]
Furthermore, in this embodiment, a crushing mechanism 8 composed of a hydraulic pusher or the like is provided in the lower part of the furnace body 2. The crushing mechanism 8 projects into the furnace body 2 and crushes the large waste b in the dry distillation chamber 21.
[0028]
According to this embodiment, as shown in FIG. 3, the cap body 1 is lifted and detached, the furnace body 2 is tilted horizontally by the tilt mechanism 6, and the charging port 25 of the furnace body 2 is turned sideways so that a large size is obtained. The waste can be easily inserted or inserted into the dry distillation chamber 21 of the furnace body 2 by horizontally feeding b.
[0029]
Thereafter, as shown in FIG. 4, the furnace body 2 is erected vertically by the tilting mechanism 6, the cap body 3 is lowered and connected, and the generated gas recovery pipe 4 is connected to the cap body 1, thereby enabling the dry distillation treatment.
[0030]
The waste a introduced into the furnace body 2 is crushed by the crushing mechanism 8 inside the dry distillation chamber 21 and accumulated and filled from the hearth 22 side. At that time, the inclination of the hearth 22 smoothly flows the large waste b toward the discharge port 23, and prevents the large waste b from adhering to and accumulating on the inner wall of the dry distillation chamber 21.
[0031]
The large waste b filled in the dry distillation chamber 21 of the furnace body 2 is subjected to dry distillation treatment by introducing high-temperature inert gas b from the inert gas introduction nozzle 5 without being burned.
[0032]
Further, the large waste b (residue d) inside the dry distillation chamber 21 that has been defrosted with the progress of the dry distillation process falls toward the discharge port 23 due to the inclination of the hearth 22. The residue d accumulated in the lower part of the dry distillation chamber 21 is discharged from the discharge port 24 opened by the operation of the shutter device 24. Even if the discharge port 24 is opened, the residue collection chamber 3 located outside the discharge port 24 has a sealed structure, so that outside air does not enter the inside of the dry distillation chamber 21.
[0033]
As described above, in addition to the illustrated embodiment, the tilt angle of the furnace body 2 can be set to other than horizontal. For example, the tilt angle is set obliquely downward from the charging port 25 of the furnace body 2 to the lower part, and a large amount of waste is supplied from the charging port 25 to the inside of the furnace body 2 along the diagonally downward inclination while applying a sliding force. It may be inserted or inserted.
[0034]
In the embodiment, the description has been made on the assumption that the carbonization chamber 21 has a rectangular tube shape. However, the present invention is not limited to this. It can be implemented.
[0035]
【The invention's effect】
As described above, the large-sized waste dry distillation furnace according to the present invention is configured such that large-sized waste is inserted from the side-facing inlet of the furnace body that has been detached from the cap body and tilted by the contact-tilting mechanism. The charged furnace body is erected by the tilting mechanism and becomes a sealed structure by connecting the cap body, and large waste is dry-distilled with inert gas introduced from the inert gas introduction means inside the furnace body, and then the crushing mechanism Since it is crushed, there is an effect that large waste can be processed almost completely by dry distillation without incineration.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of a large-sized waste carbonization furnace according to the present invention.
FIG. 2 is a front sectional view of FIG.
3 is an operation diagram of FIGS. 1 and 2. FIG.
4 is another operation diagram of FIGS. 1 and 2. FIG.
FIG. 5 is a facility layout diagram showing an example of a system in which an embodiment of a large-sized waste carbonization furnace according to the present invention is installed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cap body 2 Furnace body 21 Carbonization chamber 22 Hearth (inclined structure)
23 Discharge port 25 Input port 3 Residue collection chamber 5 Inert gas introduction nozzle 6 Tilt mechanism 7 Conveying means 8 Crushing mechanism b Large waste

Claims (3)

A cylindrical furnace body whose upper end is opened as a large-sized waste inlet, a cap body that is detachable from the furnace body inlet and is connected to the furnace body so that the furnace body is sealed, and a furnace body A tilting mechanism that supports and tilts the furnace body, an inert gas introduction means for introducing high-temperature inert gas into the furnace body, and a furnace body provided at the lower part of the furnace body. A crushing mechanism that crushes large waste generated, a discharge port that is provided at the bottom of the furnace body and discharges the residue from which large waste has been carbonized, and a collection of residue that is sealed around the discharge port Rutotomoni a chamber, said cap member said furnace body during carbonization process from the top when it is erected vertically, the furnace body, formed by arrangement in a vertical said residue product recovery chamber are assembled vertically Large waste carbonization furnace. 2. The large-sized waste retorting furnace according to claim 1 , wherein a transport means for transporting the residue to the outside of the residue collection chamber is connected to the residue collection chamber while avoiding contact with outside air. Dry distillation furnace. 3. The large-sized waste retorting furnace according to claim 1 or 2, wherein the furnace body has an inclined structure inclined downward toward the discharge port.

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