JP2005132963A - Tilted carbonization apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a holdup amount in a cylinder, and an amount discharged to the outside of the cylinder, of a carbonized product of a material to be treated, conveyed and reversed to the rotating inner cylinder to be controlled by installing a raking-out screw so as to be inserted into the rotating inner cylinder of a tilted carbonization furnace body having a double cylinder structure obliquely installed in a heating chamber and controlling the rotation. <P>SOLUTION: The tilted carbonization apparatus X has the heating chamber 1 to which hot air is fed by burning a burner as a heat source, and the carbonization furnace body 2 with the double cylinder structure, stored in the heating chamber 1 by being obliquely installed and comprising a fixed outer cylinder 21 and the rotating inner cylinder 23. A means 24 for stirring and conveying a material to be treated is formed on the outer periphery of the rotating inner cylinder 23, and the raking-out screw 3 is inserted from the tilted lower end to the interior of the cylinder. The material to be treated is fed from the tilted lower end of the fixed outer cylinder 21, and stirred and conveyed to the tilted upper end through the space between the inner and the outer cylinders 21 and 23 to progress the drying and carbonation treatment. The resultant material to be treated is conveyed and reversed to the rotating inner cylinder 23 at the end of the cylinder (from an opening 26 for transferring the material to be treated), and guided so as to flow down in the tilted lower end direction. The holdup amount and the amount discharged to the outside of the cylinder of the material to be treated are controlled by controlling the rotation of the raking-out screw 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a carbonization apparatus for organic solid waste (same as an object to be processed), which is an unused organic resource, and more specifically, a heating chamber that supplies hot air as a heat source by burner combustion, and a tilt to the heating chamber. The present invention relates to an oblique carbonization treatment apparatus that includes a carbonization furnace body having a double-cylinder structure that is installed and accommodated and performs an external heating type continuous dry carbonization treatment.

Conventionally, there has been a proposal of a carbonizing apparatus for continuously drying and carbonizing an organic solid waste (same as an object to be processed), which is an unused organic resource, using a processing furnace body having a double cylinder structure. (For example, see Patent Documents 1, 2, and 3.)
JP 2002-371283 A JP 2002-241760 A JP 2002-173684 A

  The “horizontal continuous drying carbonization device” described in Patent Document 1 is provided with a dry carbonization body having a double cylinder structure consisting of a fixed outer cylinder and a rotating inner cylinder in a heating chamber, and continuously drying carbonization by an external heating method. It has a device configuration. The device is installed horizontally. Here, the workpieces are transferred and flown in the respective cylinders, but the processing flow moves from the charging end of the rotating inner cylinder to the inner cylinder and reverses to fix the outer cylinder (more specifically, between the walls of the inner and outer cylinders) ) To return to the discharge end. In other words, the workpiece is put into the rotating inner cylinder, transferred to the cylinder end while the drying process proceeds, and then reversed to the fixed outer cylinder, and the workpiece is discharged from the cylinder end of the fixed outer cylinder while being fed back. It tries to collect.

  Further, the “waste carbonization apparatus” described in Patent Document 2 is a rotary kiln having a double cylinder structure in which a screw shaft is provided in an inner cylinder, and performs a carbonization process by a direct heating method.

  Further, the “waste carbonization apparatus” described in Patent Document 3 is an external heating type, but is an inclined rotary kiln with a jacket, and is used for a chute that inputs a workpiece directly into the furnace from the upper end of the inclination. A flue is connected, and the flue is introduced into a discharge port to achieve a chimney effect and exhaust circulation.

  However, when examining an efficient device configuration for dry carbonization using this type of workpiece as a raw material, how is the main unit (carbonization furnace body) and the processing flow (transfer flow) of the workpiece processed? There is room for improvement.

  Here, the technical solution is to tilt the carbonization furnace body having a double cylinder structure installed in the heating chamber, and to insert the scraper screw into the rotary inner cylinder to control the rotation. The in-cylinder retention amount and the out-cylinder discharge amount of the workpiece carbide transferred and reversed to the cylinder can be adjusted.

  In addition, a part of room gas including generated gas (dry distillation gas) is mixed with the outside air and circulated as a heat source, and the rest is made pollution-free and released into the atmosphere. It is in.

  The present invention has been made in view of such circumstances, and has a heating chamber that eliminates the above-described problems and supplies hot air as a heat source by burner combustion, and a double-cylinder structure that is inclined and accommodated in the heating chamber. Provided is a tilted carbonization apparatus that includes a carbonization furnace body and performs an external heating type continuous dry carbonization process.

  In order to solve the problem, the present invention comprises a heating chamber that supplies hot air as a heat source by burner combustion, and a carbonization furnace body that is inclined and accommodated in the heating chamber, and performs an external heating type continuous dry carbonization treatment. A tilted carbonization processing apparatus, wherein the carbonization furnace body has a double cylinder structure comprising a fixed outer cylinder and a rotating inner cylinder, and a stirring and transferring means for an object to be processed is formed on the outer periphery of the rotating inner cylinder. In addition, a scraping screw that is inserted into the cylinder from the inclined lower end is inserted, and a dry carbonization is performed while feeding a workpiece from the lower inclined end of the fixed outer cylinder and stirring and transferring between the walls of the inner and outer cylinders. Advances the process, reverses the transfer to the rotating inner cylinder at the cylinder end, guides the flow downward toward the tilted lower end, and controls the scraping screw rotation to adjust the in-cylinder retention amount and out-cylinder discharge amount of the workpiece carbide It is characterized by doing so.

  The present invention has the following effects.

  (1) By inclining the carbonization furnace body, the object to be processed becomes consolidated in the direction of the lower end of the inclination, so that the packing density can be increased and the amount of outside air entering with the charging can be reduced.

  (2) By making the carbonization furnace body into a double cylinder structure, the filling thickness of the workpiece can be limited between the inner and outer walls, and the transfer flow can be equalized in the processing direction (transfer direction). .

  (3) The workpiece carbide can be transferred and reversed from the outer cylinder to the inner cylinder at the upper end of the inclination, and can flow down in the inner cylinder.

  (4) By inserting a scraping screw from the inclined lower end of the inner cylinder and controlling the rotation (including stoppage), the in-cylinder retention amount and the out-cylinder discharge amount of the workpiece carbide can be adjusted.

  (5) Since it is an external heating type, it is easy to take out indoor gas including generated gas (dry distillation gas) from the heating chamber, and efficient interconnection with a secondary treatment system related to heat source circulation supply and exhaust gas treatment can be achieved.

  The best mode for carrying out the present invention, in the oblique carbonization treatment apparatus having the above-described configuration, is provided with a generated gas discharge port that conducts to the heating chamber at the inclined upper end of the fixed outer cylinder.

  In addition, a heat source circulation supply means that takes out indoor gas including generated gas (dry distillation gas) from the heating chamber to the outside, mixes part of it with outside air and circulates it into the heating chamber, and cools the remaining indoor gas with exhaust gas. After being introduced into the cleaning device and treated, exhaust treatment means for releasing into the atmosphere through a soil deodorizing device is installed in a system and operated in conjunction with these.

  Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

  FIG. 1 is a cross-sectional explanatory view of an oblique carbonization treatment apparatus (hereinafter referred to as a first embodiment apparatus) that is a first embodiment of the present invention, and FIG. 2 is an explanatory view taken along arrow AA in FIG.

  As shown in the figure, the first embodiment apparatus X is composed of a heating chamber 1 for supplying hot air by a burner 11; 12 combustion, a fixed outer cylinder 21 and a rotating inner cylinder 23 which are stored in an inclined manner in the heating chamber 1. The carbonizing furnace body 2 having a double cylinder structure is formed, and a stirring transfer means 24 for the object to be processed is formed on the outer periphery of the rotating inner cylinder 23, and a scraping screw facing the cylinder (23) from the lower end of the slope. 3 is inserted. In addition, return blades 25 are equally installed on the peripheral surface of the inclined upper end of the rotating inner cylinder 23, and a workpiece transfer port 26 is provided along the base end thereof.

  Here, a generated gas discharge port 22 that conducts to the heating chamber 1 is provided at the upper end of the inclination of the fixed outer cylinder 21. Further, the workpiece inlet 4 is provided at the inclined lower end of the fixed outer cylinder 21, and the workpiece carbide (carbonized product) outlet 5 is provided at the inclined lower end of the rotating inner cylinder 23.

  In addition, it is preferable that burners 11; 12 are provided at two locations in the heating chamber 1 and are arranged in a diagonal direction with the carbonization furnace body 2 sandwiched between them in order to uniformly supply hot air to the chamber space.

  Then, the workpiece is introduced from the inclined lower end of the fixed outer cylinder 21, and the dry carbonization process proceeds while stirring and transferring between the walls of the inner and outer cylinders 21; 23 to the inclined upper end. More) The reversal is transferred to the rotating inner cylinder 23 to flow down toward the lower end of the tilt, and the scraping screw 3 is rotationally controlled to adjust the in-cylinder retention amount and the out-cylinder discharge amount of the workpiece carbide.

  FIG. 3 is an explanatory diagram of the processing flow of the apparatus of the second embodiment of the present invention.

  As shown in the figure, the second embodiment apparatus Y is an apparatus system including the first embodiment apparatus X, and takes out indoor gas including generated gas (dry distillation gas) from the heating chamber 1 to the outside, and part of it is outside air. The heat source circulation supply means 6 that mixes with the heating chamber 1 and circulates and introduces it into the heating chamber 1 is installed in the system, the remaining indoor gas is introduced into the exhaust gas cooling and cleaning device 71 and treated, and then exhausted to the atmosphere via the soil deodorizing device 72 The means 7 is installed in a system so that the processing systems are linked to operate.

  The heat source circulation supply means 6 is a circulation processing system from the exhaust port 13 of the heating chamber 1 to the air supply port 14 via the outdoor mixing chamber 61 and the pushing fan 62.

  The exhaust treatment means 7 is a downstream treatment system for indoor gas from the exhaust port 13 of the heating chamber 1 to the soil deodorization device 73 via the induction fan 72 via the outdoor exhaust gas cooling and cleaning device 71.

  The present invention is composed of the above-described configuration, and according to this, an inclined carbonization treatment apparatus that satisfies environmental conservation and other location conditions and its apparatus system are provided, and industrial applicability as a recycling facility is It can be expected to contribute greatly to the effective use (recycling) of unused organic resources.

It is sectional view explanatory drawing of a 1st Example apparatus. It is AA arrow explanatory drawing in FIG. It is processing flowchart explanatory drawing of a 2nd Example apparatus.

Explanation of symbols

1 Heating chamber
11 No1 burner
12 No2 burner
13 Exhaust port
14 Air supply port 2 Carbonization furnace
21 Fixed outer cylinder
22 Generated gas outlet
23 Rotating inner cylinder
24 Stirring transfer means
25 Return blade
26 Processed object transfer port 3 Scraping screw 4 Processed object input port 5 Processed material carbide (carbonized product) outlet 6 Heat source circulation supply means
61 Mixing chamber
62 Pushing fan 7 Exhaust treatment means
71 Exhaust gas cooling and cleaning equipment
72 Attracting Fan
73 Soil deodorization equipment X Slope carbonization equipment [Embodiment 1 equipment]
Y oblique carbonization treatment device [second embodiment device]

Claims (4)

In carbonization processing equipment for organic solid waste (hereinafter, to-be-processed),
A heating chamber that supplies hot air as a heat source by burner combustion, and a carbonization furnace body having a double cylinder structure that includes a fixed outer cylinder and a rotating inner cylinder that are housed in an inclined manner in the heating chamber,
Agitating and transferring means for the object to be processed is formed on the outer periphery of the rotating inner cylinder, and a scraping screw facing the cylinder from the lower end of the inclination is inserted.
The workpiece is introduced from the inclined lower end of the fixed outer cylinder, and the dry carbonization process proceeds while stirring and transferring between the walls of the inner and outer cylinders to the inclined upper end. A slanted carbonization apparatus characterized in that the in-cylinder retention amount and the out-cylinder discharge amount of the carbide to be processed are adjusted by inducing downflow and rotationally controlling the scraping screw. In carbonization processing equipment for organic solid waste (hereinafter, to-be-processed),
A tilted carbonization apparatus that comprises a heating chamber that supplies hot air as a heat source by burner combustion, and a carbonization furnace body that is tilted and accommodated in the heating chamber, and performs an externally heated continuous drying carbonization process,
The carbonization furnace body has a double cylinder structure consisting of a fixed outer cylinder and a rotating inner cylinder, and an agitating / transferring means for the object to be processed is formed on the outer periphery of the rotating inner cylinder, and is exposed to the cylinder from the inclined lower end. Inserted a scraped screw,
The workpiece is introduced from the inclined lower end of the fixed outer cylinder, and the dry carbonization process proceeds while stirring and transferring between the walls of the inner and outer cylinders to the inclined upper end. A slanted carbonization apparatus characterized in that the in-cylinder retention amount and the out-cylinder discharge amount of the carbide to be processed are adjusted by inducing downflow and rotationally controlling the scraping screw. The oblique carbonization treatment apparatus according to claim 1 or 2, wherein a generated gas discharge port that conducts to the heating chamber is provided at an inclined upper end of the fixed outer cylinder. Heat source circulation supply means for taking out indoor gas containing generated gas from the heating chamber to the outside, mixing a part of it with outside air and circulatingly introducing it into the heating chamber;
The oblique carbonization treatment apparatus according to claim 1 or 2, wherein exhaust gas treatment means for discharging the remaining room gas into the exhaust gas cooling and washing apparatus and treating it and then releasing it to the atmosphere through a soil deodorization apparatus is connected.

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