JP4362727B2 - Oil making apparatus and residue discharging method of oil making apparatus - Google Patents

Description

  The present invention relates to an oil making apparatus for recycling waste such as plastic and a method for discharging a residue from the oil making apparatus.

Conventionally, in this seed oil making apparatus, waste plastics, tires, and the like are heated and melted in a pyrolysis kettle, and a cracked gas generated by the pyrolysis is cooled to generate cracked oil. On the other hand, a residue such as undecomposed matter is generated in the pyrolysis kettle, and this residue can be discharged by an appropriate means. However, in the batch-type processing liquefaction apparatus that has been the mainstream so far, after the operation is completed, the residue is discharged on the spot after waiting for the pyrolysis kettle in the heating furnace to naturally cool, or the heating furnace A method is adopted in which the entire pyrolysis kettle is lifted and taken out from the bottom and then lowered to a predetermined place to discharge the residue. On the other hand, in order to increase the operation rate of the pyrolysis kettle for these discharge treatments, for example, a screw conveyor communicating with the inside and outside is provided at the outer bottom of the pyrolysis kettle, and the conveyor is periodically driven to discharge residues. Has been proposed (see, for example, Patent Document 1).
JP 2004-182961 A

  Thus, the conventional batch-type residue discharging means has a low cooling efficiency and the operating rate is lowered. For this reason, a means for lifting the entire pyrolysis kettle upward from the furnace and cooling it can be considered. If the building (ceiling) where the equipment is installed is made tall and work at a high place is required, safety is also a concern. On the other hand, according to the configuration described in the above patent document, continuous operation is possible. On the other hand, the screw conveyor at the bottom of the pyrolysis kettle is heated by an oil burner or the like in the heating furnace and is constantly exposed to high temperature or discarded. In the molten state of plastic, a high-accuracy configuration such as thermal durability and prevention of leakage is required, and further, there are problems such as melt and residue clogging the conveyor passage. Moreover, the lump residue discharged from the screw conveyor has a problem as industrial waste, and it has not yet been sufficiently dealt with as a practical residue treatment.

  In order to solve the above-mentioned problems, the present invention provides an oil making apparatus and a residue discharging method for an oil making apparatus that can ensure residue processing efficiently and with a relatively simple means and that are safe and have good handling properties. With the goal.

  In order to achieve the above-mentioned object, the oiling apparatus of the present invention contains a pyrolysis kettle for pyrolyzing waste plastic or the like in a heating furnace, and cools the pyrolyzed gas generated to make oil. The main feature is that a door body that can be opened and closed is provided on the side wall of the heating furnace, the door body is opened, and the pyrolysis kettle can be taken out by lateral movement.

  According to the above means, the cooling action of the pyrolysis kettle can be first promoted by opening the door of the heating furnace after the end of the pyrolysis operation. The pyrolysis kettle can be removed from the heating furnace by moving in the lateral direction, and the cooling action is further promoted without being affected by the heating furnace. Therefore, the height of the ceiling of the installed building can be suppressed, and an oiling apparatus that is not only advantageous in terms of equipment cost but also can be expected to have a practical effect excellent in handleability can be provided.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
Among them, FIG. 1 shows a schematic configuration of the entire oil making apparatus, and is a configuration diagram that also serves as a summary explanation of the oil production flow and the residue processing flow. First, referring to FIG. 1, the overall structure of the oil making apparatus will be described. A pyrolysis kettle 1 for pyrolyzing waste plastic or the like is housed so as to be able to be taken in and out of a heating furnace 2 as will be described in detail later. It is heated by the combustion of the oil burner 3 and the gas burner 4 which are sources. However, the heating source should just be the structure provided with at least any one of the above.

  Thus, the oil converting apparatus performs so-called dry distillation in which the raw material supplied into the pyrolysis kettle 1, for example, waste plastic is heated and melted to gasify, and the cracked gas generated by the heat decomposition is cooled and condensed. In order to produce liquefied oil by liquefying by this, in this embodiment, there are provided two routes of a primary oil production line and a secondary oil production line (indicated by broken arrows A1 and A2 in the figure, respectively). That is, with the start of the pyrolysis operation, the cracked gas is led out from the upper portion of the pyrolysis kettle 1 and flows in the direction of the broken arrow A 0 and is introduced into the reforming tank 5. Although not described in detail, the reforming tank 5 is provided with a catalyst and an activation heater inside, and a catalytic reaction of the cracked gas with this to reduce impurities such as carbon number and odor. It has a function to improve quality.

  The reformed cracked gas initially circulates in the primary oil production line based on operation control described later. That is, the primary-side on-off valve 6 is opened, and the secondary-side on-off valve 7 is maintained in a closed state, whereby cracked gas flows only to the primary side in the direction of the broken line arrow A1, and the primary condensing tank 8 Flow into. Here, for example, the cracked gas is circulated through the tank with a cooling jacket using a cooling tower (not shown) as a cooling means. By this cooling and condensation of the cracked gas, the oil component is liquefied and flows in the direction of the solid arrow A1 and is stored in the primary oil recovery tank 10 via the primary oil / water separator 9. In addition, the solid line arrow A shown in the figure shows the flow of cracked oil, and the broken line arrow A shows the flow of cracked gas.

  On the other hand, in the secondary oil production line shown after the branch to the broken line arrow A2 side, the details of the oil production process will be described later. In operation, for example, it functions effectively during decomposition operation based on different temperature control. Therefore, in this case, only the secondary on-off valve 7 is opened, and the cracked gas is cooled and liquefied while flowing into and passing through the secondary condensing tank 11, and this liquefied product oil is separated into secondary oil and water. The secondary oil recovery tank 13 is stored through the device 12.

  On the other hand, at the time of dry distillation for producing oil as described above, the residue of undecomposed matter stays in the pyrolysis kettle 1, so it is necessary to extract it. The schematic configuration related to the residue processing flow will be described below. When the pyrolysis operation is completed, the pyrolysis kettle 1 is taken out in the heating furnace 2 with a cooling time and moved in the direction indicated by the white arrow in the figure. It has a possible configuration. Although details will be described later, a part of the peripheral wall of the heating furnace 2 is configured to be openable and closable, and the pyrolysis kettle 1 can be moved mainly from the open part in the lateral direction. As the moving means, although the specific configuration will be described later, a suspension moving means 14 that supports the pyrolysis kettle 1 in a suspended state and is movable in the lateral direction is provided. A residue discharge table 15 is provided at a predetermined position. The residue discharge table 15 accommodates and holds the pyrolysis kettle 1 after movement, and can be rotated by a predetermined angle to be turned upside down. The internal residue can be extracted.

Hereinafter, a specific configuration relating to the residue treatment means will be described with reference to the side view for explaining the residue treatment means in FIG. 2 and the same cross-sectional plan view in FIG.
2 and 3 show the operation state during the so-called movable state from the position where the pyrolysis kettle 1 is accommodated in the heating furnace 2 to the position where it is accommodated and held in the residue discharge stand 15 together with the specific configuration of the main part. Disclosure. In addition, the cross-sectional view shown in FIG. 3 is a cross section of a later-described hook portion 1a portion of the pyrolysis pot 1, and a square plate-like flange portion 18 described later is indicated by a two-dot chain line.

First, the specific structure of the pyrolysis kettle 1 will be described again. The pyrolysis kettle 1 is attached to cover the bottomed cylindrical kettle 1a and its upper end opening at the lower part, which is generally cylindrical. It is comprised from the fixed disk-shaped canopy part 1b, and several places of both outer peripheral site | parts are couple | bonded by the fastener 16 so that attachment or detachment is possible.
More specifically, a plurality of radially formed vertical ribs 17 are provided on the outer peripheral edge of the upper end opening of the hook portion 1a, and the lower end portion of the vertical ribs 17 extends in the radial direction and the outer shape is a square plate. When the pyrolysis kettle 1 is accommodated in the heating furnace 2 as will be described later, the weight of the pyrolysis kettle 1 itself is increased. Ensuring sufficient strength to withstand and support.

  Residue discharge means 22 is provided at the top of the pyrolysis kettle 1. In the present embodiment, this is composed of a residue discharge port 22a communicating with the inside and the outside at two locations (only one location is shown in FIG. 2) of the canopy portion 1b, and a lid 22b that closes the lid so as to be opened and closed. ing. In this case, the lid body 22b only needs to be openable / closable by any opening / closing means by rotation by hinges or attachment / detachment. Further, a motor 23 is mounted above the center of the canopy 1b and drives the stirring member 24 in the pyrolysis kettle 1. The stirring body 24 has a blade shape along the shape of the bottom portion of the pyrolysis kettle 1. Incidentally, the bottom portion of the pyrolysis kettle 1 protrudes inward at a central portion and forms a recessed portion 25 on the outer bottom surface. Thus, the surface area is increased to increase the heat transfer area from a so-called heating source.

  The pyrolysis kettle 1 having the above-described configuration is movable in a suspended state by the suspension moving means 14, and this is an electric type in this embodiment as shown in FIG. The hoist mechanism 26 and the manually operated crane mechanism 27 are configured. That is, the pyrolysis kettle 1 is suspended and supported by a hoist mechanism 26 connected by a hoist 28 having a wire rope 26a, a wire chain, and the like so that the hoist mechanism 26 can be moved up and down. It connects with the crane mechanism 27 which can move to the horizontal direction which is a direction, and, thereby, the pyrolysis pot 1 can be moved to the up-down and left-right directions, respectively. In addition, the lower end of the hanging tool 28 is detachably connected to the flange portion 18 of the pyrolysis kettle 1 so that it can be hung.

  On the other hand, the crane mechanism 27 is a combination of, for example, a monorail type rail 29 and a traveling body 30 that slides and engages with a monorail rail 29. The hoist mechanism 26 connected to the lower side of the crane mechanism 27 is used as a suspension moving means 14. Is configured. In the present embodiment, the operation string 31 (see FIG. 2) is pulled in the left-right direction in the laying direction of the rail 29 so that it can be easily traversed via the rail 29 and the operation box 32 is operated. The hoist mechanism 26 is activated, and the hanging tool 28 can be moved up and down.

Next, a specific configuration of the heating furnace 2 will be described with reference to FIGS.
The heating furnace 2 is disposed in a range in which the pyrolysis kettle 1 suspended and supported by the suspension moving means 14 can move, and can accommodate the kettle portion 1a of the pyrolysis kettle 1, which is made of ceramic or heat resistant. It is made of clay and has a bottomed rectangular tube shape as a whole. Thus, the open end of the rectangular shape at the upper end accommodates the pyrolysis kettle 1 (strictly the kettle 1a), is placed and supported via the square plate-like flange 18 and is detachable. The two are fixedly held in a closed state. Further, the pyrolysis kettle 1 in the housed state prior to this operation is not connected to the hanging tool 28 of the hoist mechanism 26. Therefore, the weight of the pyrolysis kettle 1 is received and supported at the upper end portion of the heating furnace 2 through the flange portion 18. For this reason, the connecting means between the flange portion 18 and the upper end portion of the heating furnace 2 is an appropriate position fixing means (not shown) that can be easily separated in the vertical direction without being easily displaced laterally between the two. And so-called detachable and easily supported structure.

  In addition, the rectangular cylindrical peripheral wall of the heating furnace 2 is configured to include a door body 32 that also serves as one of the four side walls and can be opened and closed (see FIG. 3). The door body 32 has a two-door structure that is opened to the left and right by a hinge 33 (so-called double door), and can be opened and closed by manual operation in this embodiment (of course, an electric door structure may be used). ). Thus, after the end of the pyrolysis operation, when the door body 32 is opened, the hook portion 1a of the housed pyrolysis pot 1 can be moved in the lateral direction. The pyrolysis kettle 1 can be taken out from the heating furnace 2.

  However, when the pyrolysis kettle 1 is moved to a predetermined position outside the furnace by the suspension moving means 14, the residue discharge stand 15 for accommodating and holding the pyrolysis kettle 1 is provided as described above. As shown in FIG. 5, the residue discharge table 15 is configured to be able to turn upside down while holding the pyrolysis kettle 1. That is, the residue discharge table 15 includes, for example, a base frame 34 fixed to the installation surface, an inner frame 35 that directly holds the pyrolysis vessel 1 and is rotatable, and is provided on the base frame 34 and rotates the inner frame 35. And a drive mechanism unit 36 including a motor to be moved, a reduction gear, and the like. As apparent from FIG. 3, the rotational power of the drive mechanism 36 is obtained by integrally connecting and fixing the support shafts 38 a and 38 b that also serve as rotation transmission on the left and right sides of the inner frame 35. At the same time, the pyrolysis kettle 1 can be rotated, and its support shafts 38 a and 38 b are rotatably supported by the base frame 34 via bearing members 37.

  Thus, by driving the drive mechanism 36, the inner frame 35, and thus the pyrolysis kettle 1 is turned upside down (centered) at a predetermined angle θ from the upright position (shown by the center line Y1) as shown in FIG. (Shown by line Y2), for example, it can be turned to about 130 degrees and can be stopped. The predetermined position (Y2) after the rotation of the pyrolysis kettle 1 having the predetermined angle θ is determined so as to obtain a posture in which the residue can be easily taken out from the upper residue discharging means 22, and in this case, at least the residue on the canopy 1b. The discharge port 22a is set at a position that opens downward. The drive mechanism 36 employs a reversible motor, for example, so as to rotate the pyrolysis pot 1 and the like back to the original position, and can be controlled by a switching operation (not shown).

Next, the operation of the oil making apparatus configured as described above will be described.
First, the generation of cracked oil by dry distillation will be described with reference to FIG. 1. A pyrolysis kettle 1 charged with crushed waste plastic as a raw material is housed in a heating furnace 2 and its square plate-like flange is formed. The upper end opening of the square cylindrical heating furnace 2 is securely closed and supported by the portion 18, and the cylindrical portion 1 a is accommodated at a predetermined position by being engaged and held at that position. In this accommodated state, the suspension moving means 14 is disconnected from the pyrolysis kettle 1. Then, a pyrolysis operation is performed in which the oil burner 3 and the gas burner 4 are ignited to perform so-called dry distillation in which waste plastic is heated to melt and gasify. Further, the agitator 24 (see FIG. 2) is rotationally driven by a motor 23 provided outside the canopy 1b, and by this agitation and mixing, the waste plastic is thermally decomposed while being uniformly heated and melted to efficiently perform dry distillation. Moreover, since the recessed portion 25 is formed in the bottom of the pyrolysis kettle 1 to increase the heat transfer area, the heating efficiency by the burners 3 and 4 is improved, and dry distillation by pyrolysis is more effectively promoted.

  However, the thermal decomposition operation in the present embodiment is executed in two steps based on different temperature controls. First, as a primary pyrolysis based on a control means (not shown), the molten gas is heated and melted by an operation based on a temperature control up to, for example, 400 ° C., and the generated cracked gas is taken out from the upper portion of the pyrolysis kettle 1 in the direction of the broken arrow A0. The reforming is performed by catalytic reaction in the reforming tank 5. First, the first on-off valve 6 is controlled to be opened and the other second on-off valve 7 is closed. Therefore, the reformed cracked gas flows only in the direction of the dashed arrow A1 and is introduced into the primary condensing tank 8. The In the condensing tank 8, the cracked gas is cooled and condensed while flowing therein, whereby the oil component is liquefied, so-called cracked oil is generated and stored in the primary oil recovery tank 10 via the primary oil / water separator 9. Is done. As described above, the high-quality oil recovered in the primary oil production line can be effectively used as a resource for recycling fuel and the like.

  On the other hand, non-decomposable substances having a high boiling point that are not decomposed by the primary pyrolysis still remain in the pyrolysis kettle 1 as a massive residue. Therefore, following the primary pyrolysis operation (temperature control at 400 ° C.) mainly based on the oily treatment as described above, a similar secondary pyrolysis operation in which the temperature is further increased to, for example, 800 ° C. Executed. The operation based on the temperature control of 800 ° C., which is a high temperature, is performed without supply of new materials, and therefore it can be said that the operation is mainly for carbonizing the residue in the above state.

  Specifically, thermal decomposition further proceeds with this high temperature heating, and a cracked gas containing an oil component is generated. This gas branches from the broken line arrow A0 after passing through the reforming tank 5 and flows toward the broken line arrow A2 side based on the fact that only the second on-off valve 7 is opened. Thereafter, through the secondary condensing tank 11 and the secondary oil / water separator 12 and the like in the same manner as described above, it flows into the secondary oil recovery tank 13 as indicated by the solid line arrow A2, and is stored. However, in the so-called primary oil production line indicated by the arrow A1, the high quality oil is produced based on the oil treatment up to 400 degrees C. On the other hand, the secondary oil production line indicated by the arrow A2 is 400 to 800 degrees. C is thermally decomposed at a high temperature, and carbonized oil having a large amount of carbon components is mainly produced and stored.

As a result of this high temperature heating, the residue is substantially carbonized in the form of powder, with the oil component being greatly removed. Hereinafter, the residue treatment method will be described with reference to FIGS. In addition, the white arrow shown in this figure shows the moving direction of the thermal decomposition pot 1 by the suspension moving means 14, and has shown the residue processing procedure.
Therefore, the thermal decomposition operation based on the heating source such as the oil burner 3 and the stirrer 24 is stopped, and the pyrolysis kettle 1 is placed in the heating furnace 2 and placed in an environment for natural cooling. After natural cooling for a while in this state, the door body 32 that also serves as one of the side walls of the heating furnace 2 is manually opened as shown in FIG. 3 (however, the door body 32 is opened / closed electrically. Does not prevent being). The opening of the door body 32 cools the hot air in the heating furnace 2 by replacing it with low-temperature outside air, and the cooling effect of the pyrolysis kettle 1 is further promoted.

  Further, after a certain period of time during the cooling period due to the above state, the lifting tool 28 connected to the wire rope 26a of the hoist mechanism 26 is hooked on the flange portion 18 of the pyrolysis kettle 1 and connected. First, the hoist mechanism 26 is driven to wind up the wire rope 26a, and the pyrolysis kettle 1 is slightly pulled up. This requires only a slight increase in the dimensions required to leave the state where the upper end opening edge of the heating furnace 2 and the flange portion 18 are held by a position fixing means (not shown). In this way, the pyrolysis kettle 1 is suspended and supported by the suspension moving means 14 in a suspended state, but in this slightly elevated suspended state, most of the tubular portion 1a which is the majority of the pyrolysis kettle 1 is still in the heating furnace. 2 is located.

Therefore, by pulling the crane mechanism 27 in the rail 29 direction from this state, the traveling body 30 slides and moves along the rail 29 (see particularly FIGS. 2 and 4). At the start of this movement, the suspended pyrolysis kettle 1 has the door 32 open, so that it can be easily moved outside the furnace in accordance with the movement of the crane mechanism 27 without contact with the heating furnace 2 in the direction of the white arrow. It can be taken out.
When the pyrolysis kettle 1 is moved horizontally in the horizontal direction and reaches a predetermined position, the hoist mechanism 26 is operated to hang the wire rope 26a and lower the pyrolysis kettle 1. As a result, the pyrolysis kettle 1 is accommodated in the residue discharge stand 17 disposed at a predetermined position, and is fixed and held on the inner frame 35 by an appropriate fixing means such as a bolt and a nut via the flange portion 18.

  In this manner, the pyrolysis kettle 1 includes a slight vertical movement, but it can be taken out from the heating furnace 2 and moved to a predetermined position by moving substantially horizontally in the horizontal direction. 15 is housed and held, and in this state, it is most naturally cooled by touching the coolest air. Incidentally, the suspension moving means 14 that lifts the pyrolysis kettle 1 as in the present embodiment does not require a high ceiling when installed indoors.

Subsequently, the pyrolysis kettle 1 is reversely rotated to a position of a predetermined angle together with the inner frame 35 while being accommodated in the residue discharge stand 15 and held by the inner frame 35.
That is, the pyrolysis pot 1 accommodated in the residue discharge stand 15 in FIG. 5 is initially in an upright position (Y1) indicated by a two-dot chain line, and from this state, the drive mechanism unit 36 is driven to reduce the gear and the support shaft. The pyrolysis kettle 1 stops at a position (Y2) rotated by a predetermined angle θ in the direction of the solid line arrow in the figure via 38a, 38b and the like. As a result, at least two residue discharge ports 22a (only one is shown) provided in the canopy portion 1b, which is the residue discharge means 22 disposed in the upper part, reach a position that opens downward at a low position. So-called reverse rotation is performed. Thereby, the powdered residue carbonized can be easily extracted from the residue discharge port 22a with the lid 22b opened. At the time of the residue treatment, in particular, the shape and assembly configuration for efficiently performing the thermal decomposition of the stirring body 24 and the recessed portion 25 are provided at the bottom of the pyrolysis vessel 1 without being affected by the residue discharge. Can do.

  In the case of using the same pyrolysis kettle 1 for the next operation, the procedure may be reversed. For example, first, the drive mechanism unit 36 is driven from the rotating state shown by the solid line in FIG. The pyrolysis kettle 1 is rotated in the direction of the broken line arrow to return to the upright position (Y1), and the waste plastic as the next raw material is put into the interior from the two open residue discharge ports 22a. Then, after closing the lid 22b, it is lifted slightly from the residue discharge table 15 using the suspension moving means 14, and then moved laterally. At this time, since the heating furnace 2 has the door 32 that is one side wall in an open state, the pyrolysis kettle 1 that moves in the horizontal direction proceeds as it is, and the kettle 1a is accommodated in the heating furnace 2 from the lateral direction. be able to.

  Thereafter, the door body 32 is closed, and then the wire rope 26a and the hanging tool 28 are suspended by the hoist mechanism 26, the pyrolysis kettle 1 is lowered, and the flange portion 18 is placed on the upper end opening edge of the heating furnace 2. To do. And it is accommodated and arrange | positioned by this flange part 18 in the closed state by making it detachably support at the predetermined position via a position fixing means. Thereafter, the pyrolysis kettle 1 is disconnected from the suspension moving means 14 and the so-called setup of the pyrolysis operation is completed.

  On the other hand, it is also possible to develop to other setup means that are more efficient. That is, by the method of preparing the next set-up using another pyrolysis pot in advance until the residue is processed in the rotated state shown in FIG. 5, and therefore prepared outside the moving range of the suspension moving means 14 The waste plastic is put into another pyrolysis kettle and prepared, and the other pyrolysis kettle is accommodated and set in the heating furnace 2 when the operation is restarted. This increases the operating rate. In the means using the spare pyrolysis kettle, a crane mechanism other than the above is added, for example, a crane mechanism that can travel vertically and horizontally, or a slidable mounting surface, etc. By providing appropriate equipment, it is possible to easily move and handle the spare pyrolysis kettle and increase the operating rate.

As described above, the present embodiment has the following effects.
It is an oiling device that cools and condenses cracked gas by thermal decomposition operation of waste plastics, and it is easy to extract the residue staying in the pyrolysis vessel 1 and is safe for batch processing. Can efficiently discharge the residue. Specifically, when the predetermined pyrolysis operation is finished, the pyrolysis kettle 1 is naturally cooled, but can be easily moved out of the furnace using the suspension moving means 14, and therefore the residual heat in the heating furnace 2. Thus, the cooling effect can be enhanced without being affected by the above, and the cooling time can be shortened.

  In particular, when the pyrolysis kettle 1 is moved out of the furnace by the suspension moving means 14, one of the peripheral side walls of the heating furnace 2 is provided to be openable and closable as a door body 32, so that it is accommodated in the heating furnace 2 after the operation is stopped. When the natural cooling is performed in this state, the door body 32 is opened and the pyrolysis kettle 1 is in good contact with the outside air, which is compared with the case where it is cooled while being accommodated in the conventional closed heating furnace 2. The cooling effect is greatly improved. In addition, the movement from the heating furnace 2 by the suspension moving means 14 is substantially almost the same, although there is a slight upward movement of the pyrolysis kettle 1 in the accommodated state from the opening opening the door body 32 of the heating furnace 2. Since it is only necessary to move it horizontally, it can be easily moved out of the furnace, and natural cooling can be promoted more effectively outside the furnace.

  On the other hand, in some cases, a part of the oil recovery tanks 10, 13 and the like are usually installed outdoors, but most of the apparatus is installed indoors. However, according to the suspension moving means 14 that does not require a large amount of movement in the height direction as in the present embodiment, and that can move the pyrolysis kettle 1 out of the heating furnace 2 by a substantially horizontal lateral movement. It can be installed without raising the ceiling of the installed building. Therefore, it is clear that the ceiling height in this case needs to be considerably increased in the means for laterally moving the pyrolysis kettle 1 after taking it out completely from the heating furnace (without the door). On the other hand, according to the present embodiment, the equipment cost including the building can be suppressed, and the degree of freedom for selecting the installation location of the oil making apparatus is greatly advantageous.

  Further, the horizontal movement of the pyrolysis kettle 1 is performed not only when it is taken out of the furnace but also when it is housed in the furnace when the operation is started again. Both can be operated easily. Moreover, since it is not lifted to a high place and the work at a high place can be reduced as described above, it can be handled more efficiently and safely.

  Furthermore, in this embodiment, when the pyrolysis kettle 1 is moved to a predetermined position outside the furnace, it is accommodated in the residue discharge stand 15 and is rotatably held by the drive mechanism 36, so that it is sufficiently naturally cooled. By rotating the pyrolysis kettle 1 reversely by a predetermined angle θ and moving the residue discharge port 22a as the residue discharge means 22 located at the upper position to a lower position opening downward, the carbonized residue inside can be easily extracted. Can do. The residue discharge port 22a can be used as an input port for new waste plastic and the like by being rotated back to the original upright position in addition to discharging the residue, and the lid 22b is in a thermal decomposition operation. In this case, since it is located at the upper part outside the heating furnace 2 and is not directly heated and does not come into contact with the melted material such as waste plastic, the residue discharge port is provided on the bottom surface of the conventional configuration. In addition, there is no fear of melting leaks or clogging.

  Further, since the residue is carbonized in a powder form, it can be easily extracted from the residue discharge port 22a displaced to the downward position, and the recess 25 or the stirring body 24 applied to the bottom of the pyrolysis vessel 1 can be used. Such a mechanism part does not hinder the discharge of the residue, so that it can be provided as a structure for improving the efficiency of the original thermal decomposition (dry distillation). The residue is carbonized so that it is not toxic as well as reduced in volume, and the problem of industrial waste can be solved.

  In addition, when it is desired to increase the operation rate of the pyrolysis kettle 1 for batch processing, it is possible to set up another pyrolysis kettle during the above-described residue discharge process. For example, after the pyrolysis kettle 1 is accommodated and held in the residue discharge stand 15, it is released from the suspension moving means 14, so that another pyrolysis kettle charged with waste plastic in the meantime is used for the suspension moving means 14. Thus, it can be easily accommodated by laterally moving to the heating furnace 2 side, and batch processing with an improved operation rate of a so-called pyrolysis kettle can be expected.

  The present invention is not limited to the embodiment described above and shown in the drawings. For example, a door body having a double door structure is provided on the side wall of the heating furnace. However, the present invention is not limited to this structure. It is good also as a structure which hangs up and down by making a part into a rotating shaft, and opens and closes. In addition, the heating furnace has a square cylindrical shape, but may have a cylindrical shape. Accordingly, the door body may have various shapes depending on the actual situation, and at least a part of the side wall that allows the pyrolysis kettle to be taken out in the lateral direction. May be configured. In addition, although it was set as the structure which can drive | work using a monorail type rail as a crane mechanism of a suspension moving means, not only this but the concrete rail structure etc. can be considered variously, and automatic driving | running | working is also possible, or another It is possible to implement various changes without departing from the gist of the present invention, such as a structure in which a roller conveyor is used on the floor surface in consideration of movement in the lateral direction as the moving means.

The schematic block diagram of the oil-ized apparatus which shows one Example of this invention Side view for explaining a series of residue processing procedures and operations Cross section Operation explanatory diagram by suspension moving means Side view for explaining the residue treatment operation

Explanation of symbols

  In the drawings, 1 is a pyrolysis kettle, 2 is a heating furnace, 8 and 11 are condensation tanks, 14 is a suspension moving means, 15 is a residue discharge stand, 18 is a flange portion, 22 is a residue discharge means, 22a is a residue discharge port, 26 is a hoist mechanism, 27 is a crane mechanism, 32 is a door, and 36 is a drive mechanism.

Claims (6)

In a pyrolysis kettle that pyrolyzes waste plastic, etc. in a heating furnace, the pyrolysis gas that is generated is cooled and oiled.
A primary oil production line for producing high-quality oil by cooling the pyrolysis gas generated by heating the pyrolysis kettle charged with waste plastic or the like at 400 ° C. or lower;
A secondary oil production line for cooling the pyrolysis gas generated by further heating the pyrolysis kettle at 400 ° C. to 800 ° C. to produce carbonized oil,
An oiling apparatus characterized in that a door body that can be opened and closed is provided on a side wall of the heating furnace, the door body is opened, and the pyrolysis kettle can be taken out by lateral movement. In the oiling equipment that pyrolyzes waste plastics and cools the pyrolysis gas that is generated,
A pyrolysis pot that houses waste plastic, etc.
A heating source that heats the pyrolysis kettle, and a heating furnace that houses the pyrolysis kettle;
A reforming tank for reforming pyrolysis gas;
Primary and secondary condensation tanks for cooling and condensing pyrolysis gas;
Primary and secondary oil-water separators;
Primary and secondary oil recovery tanks,
The pyrolysis kettle charged with waste plastic or the like is heated at 400 ° C. or less by the heating furnace, and the generated pyrolysis gas is supplied to the reforming tank, the primary condensation tank, and the primary oil-water separator in this order. The high quality oil produced by passing through is recovered in the primary oil recovery tank,
After recovering the high quality oil in the primary oil recovery tank, the pyrolysis kettle is further heated at 400 ° C. to 800 ° C. in the heating furnace, and the generated pyrolysis gas is converted into the reforming tank, the secondary condensation tank, and Carbonized oil produced by passing through the secondary oil-water separator in this order is recovered in the secondary oil recovery tank,
An oiling apparatus characterized in that a door body that can be opened and closed is provided on a side wall of the heating furnace, the door body is opened, and the pyrolysis kettle can be taken out by lateral movement. 3. A suspension moving means for suspending and supporting the pyrolysis kettle on a rail disposed above as a means for moving the pyrolysis kettle and enabling lateral movement by rail running. The oiling apparatus as described. The upper part of the pyrolysis kettle comprises means out residual渣排, claim and further comprising a residual渣排Dedai for holding the pyrolysis kettle moves outside the heating furnace to rotatably be upside down 1-3 The oil-ized apparatus in any one of . In a pyrolysis kettle that pyrolyzes waste plastic, etc. in a heating furnace, the pyrolysis gas that is generated is cooled and oiled.
The pyrolysis kettle is provided with a residue discharging means, and the pyrolysis kettle charged with waste plastic or the like is heated at 400 ° C. or lower to produce high quality oil. The pyrolysis kettle is further heated at 400 ° C. to 800 ° C. After heating to produce carbonized oil , at least a part of the side wall of the heating furnace is opened, the pyrolysis kettle is suspended and supported in the lateral direction outside the furnace, the pyrolysis kettle is cooled, A residue discharging method for an oil making apparatus, wherein the kettle is turned upside down by a predetermined angle and the residue is extracted through the residue discharging means. 6. The method for discharging a residue from an oil making apparatus according to claim 5 , wherein the residue is carbonized into a powder form.

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