Carbonization and oilification treatment device

Abstract

To achieve transfer in which failure and breakage are hardly generated and continuous treatment is safely performed by constituting transfer means not causing problems on heating resistance to heating of superheated steam and a burner in a treatment furnace.SOLUTION: A drive motor 15 is installed in a lower part of a transfer path 3 in a portion to be an inlet or an outlet of end part shutters 6a, 6b and partition shutters 7a, 7b-12a, 12b. A tongue piece-like delivery member 16 is provided in a rotational shaft projecting to a front side of the transfer path 3 of the drive motor 15. A bottom rear side of a housing container 2 is provided with a plurality of contact disengagement members 21 at fixed intervals, engaged and disengaged so that the tongue piece-like delivery member contacts upon the rotation of the tongue piece-like delivery member 16 by the drive motor 15, and transfer force in a forward direction is transmitted to the housing container 2 following the rotation. The housing container 2 can be transferred in a forward direction by sequentially repeating contact and disengagement operation with the plurality of contact disengagement members 21 provided at fixed intervals every time of the rotation of the tongue piece-like delivery member 16.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a carbonization and oilification treatment apparatus suitably used for carbonizing and oilifying food waste such as food scraps and waste plastic garbage (hereinafter referred to as waste plastic). In particular, when continuously performing carbonization and oilification treatment, the present invention relates to a carbonization and oilification treatment apparatus in which transfer means installed for transferring a storage container for storing waste such as organic substances between a plurality of treatment furnaces is improved.

Background Art

[0002] In the conventional carbonization and oilification treatment technology, there are a storage container for storing organic substances of food waste and waste plastic, a transfer conveyor for transferring the storage container, a carbonization treatment furnace composed of a tubular body having openings at both ends in the length direction, a superheated steam generator, and a supply pipe portion for supplying the superheated steam generated by the superheated steam generator into the carbonization and oilification treatment furnace. A configuration is provided in which partition shutters for partitioning a plurality of internal spaces are provided at both ends and an intermediate region in the length direction of the carbonization and oilification treatment furnace so as to be openable and closable under predetermined control. Superheated steam is supplied from the supply pipe portion to each of the plurality of partitioned independent internal spaces, and the temperature of the superheated steam is controlled so as to be different for each independent internal space, and a carbonization and oilification treatment apparatus configured to continuously perform carbonization and oilification treatment of organic substances such as food waste and waste plastic has been proposed by the inventor of the present application (Patent Document 1).

[0003] In addition, in the carbonization and oilification treatment apparatus configured as described above, a carbonization and oilification treatment apparatus capable of performing efficient continuous treatment by enabling circulation and utilization of superheated steam supplied during continuous treatment has also been proposed by the inventor of the present application (Patent Document 2).

[0004] In these carbonization and oilification treatment apparatuses, the reason why the temperature differs for each independent treatment space is that, considering that the objects to be treated contain various substances such as food residues, wood, plastics, and metals in addition to food residues, they are configured to be treated according to temperature zones. In the upstream low-temperature zone, in addition to carbonizing food residues and wood and recovering them as charcoal, resin-based objects to be treated such as plastics, substrates, and tires are distilled and vaporized by being treated at a predetermined temperature to recover oil components, and metals are also melted and recovered at a temperature suitable for this, so that resource reuse can be achieved.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] In the inventions described in the above Patent Documents 1 and 2, in order to continuously process in treatment furnaces having different temperature zones, a transfer conveyor for transferring a storage container for storing treatment waste is provided in each treatment furnace that becomes a plurality of independent treatment spaces, and by transfer control for driving the transfer conveyor while opening and closing a partition shutter that partitions between the treatment furnaces after the completion of treatment in each treatment furnace, the storage container is sequentially transferred into the treatment furnace from the previous stage to the next stage.

[0007] The transfer of the storage container in the above-described conventional apparatus was performed by a transfer conveyor provided in a treatment furnace into which superheated steam was introduced and which was also heated by a burner from the lower side, so that the transfer conveyor was likely to fail or be damaged due to heat, and when performing continuous treatment, the number of maintenance inspections and replacement operations of the transfer conveyor itself also increased, which was a problem in terms of treatment efficiency and safety when performing continuous carbonization and oilification treatment.

[0008] Therefore, in the continuous carbonization treatment process, the present invention aims to provide a carbonization treatment apparatus capable of realizing the transfer of a storage container that is less likely to cause failures and damages and is suitable for performing continuous treatment considering safety by configuring a transfer means that does not cause problems in heat resistance against superheated steam and burner heating in the treatment furnace.

Means for Solving the Problems

[0009] In order to solve the above problems, the present invention is configured as follows. That is, the carbonization treatment apparatus according to the present invention includes a storage container for storing a carbonization treatment product, a carbonization treatment furnace in the form of a tubular body having a transfer path for the storage container provided therein and openings at both ends in the longitudinal direction, a superheated steam generator, and a supply pipe portion for supplying the superheated steam generated by the superheated steam generator into each of the carbonization treatment furnaces. End shutters are provided at the openings at both ends of the carbonization treatment furnace, and partition shutters are provided so as to be openable and closable, which are arranged at intervals in the longitudinal direction of the carbonization treatment furnace and partition both ends of the formed treatment spaces respectively. Superheated steam is supplied from the supply pipe portion to each of a plurality of independent internal spaces formed when the end shutters and the partition shutters are closed, and in the carbonization treatment apparatus in which the temperature of the superheated steam supplied from the supply pipe portion to each independent treatment space is variably controlled for each independent treatment space, A drive motor is installed below the transfer path at each part where the shutters between the end shutter and the partition shutter open and close, and a tongue-shaped feeding member is provided on a rotating shaft protruding from the surface side of the transfer path of the drive motor. On the bottom surface side of the storage container, a plurality of contact-engagement-disengagement members that contact and engage and disengage so that a transfer force in the forward direction is transmitted to the storage container following the rotation of the tongue-shaped feeding member when the tongue-shaped feeding member rotates by the drive motor are provided at regular intervals. Each time the tongue-shaped feeding member makes one rotation, the contact-engagement-disengagement operations with the plurality of contact-engagement-disengagement members provided at the regular intervals are sequentially repeated, so that the storage container can be transferred a predetermined distance in the forward direction.

Effects of the Invention

[0010] According to the apparatus for carbonization treatment of waste according to the present invention, when the drive motor is driven to rotate the tongue-shaped feeding member, the tongue-shaped feeding member abuts against the abutting engagement and disengagement member provided on the bottom surface side of the storage container, and the transfer force in the forward direction follows the rotation thereof and is transmitted to the storage container. Since it operates to engage and disengage, every time the tongue-shaped feeding member makes one rotation, the abutting engagement and disengagement operations with a plurality of abutting engagement and disengagement members provided at regular intervals are sequentially repeated, and the storage container can be transferred in the forward direction along the transfer path. Thus, it becomes possible to continuously transfer the storage container from the previous stage to the next treatment furnace without using a transfer conveyor in the conventional carbonization treatment furnace.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0012] It is a schematic diagram showing the overall configuration of the apparatus 1 for carbonization treatment of waste according to the present invention. This apparatus is suitably used for carbonization treatment of various wastes such as food waste, paper waste, food scraps, resin wastes such as plastics, livestock wastes, flower wastes, waste such as electric wire cords, waste of vapor deposition films, and fiber wastes by superheated steam.

[0013] The carbonization and oilification treatment device 1, similar to the conventional device, includes a storage container 2 for storing objects to be treated such as food waste and waste plastic, a carbonization and oilification treatment furnace 4 in the form of a tubular body having openings at both ends in the length direction, a superheated steam generator (not shown), a supply pipe section 5 for supplying the superheated steam generated by the superheated steam generator into the interior of the carbonization furnace, a water storage tank for steam (not shown), and a boiler 13 provided at the lower part of each carbonization and oilification treatment furnace for heating the interior of the furnace.

[0014] The carbonization and oilification treatment furnace 4 is a tubular body provided with openings 4a and 4b at both ends in the length direction. The opening 4a is the entrance of the storage container 2 into the carbonization and oilification treatment furnace 4, and the other opening 4b is the outlet for discharging the storage container 2 out of the carbonization and oilification treatment furnace 4.

[0015] The carbonization and oilification treatment furnace 4 has a substantially rectangular cross-sectional shape, and the floor surface is formed as a transfer path for the storage container 2. A plurality of long bodies with a substantially U-shaped cross-section are installed on the floor surface serving as the transfer path in a sealed state with a gap.

[0016] Similar to the conventional device, an end shutter 6a that can be opened and closed is attached to the opening 4a at one end of the carbonization and oilification treatment furnace 4, and the end shutter 6a can be moved up and down by an opening and closing cylinder (not shown) or other equivalent mechanisms. By moving the end shutter 6a downward, the opening 4a at one end of the carbonization furnace 4 can be closed, and by moving the end shutter 6a upward, the opening 4a at one end of the carbonization furnace 4 can be opened.

[0017] In addition, an end shutter 6b that can be opened and closed is attached to the opening 4b at the other end of the carbonization and oilification treatment furnace 4, and the end shutter 6b can be moved up and down by an opening and closing cylinder (not shown) or other equivalent mechanisms. By moving the end shutter 6b downward, the opening 4b at the other end of the carbonization furnace 4 can be closed, and by moving the end shutter 6b upward, the opening 4b at the other end of the carbonization and oilification treatment furnace 4 can be opened.

[0018] Partition shutters 7a to 12b that partition the internal spaces of the seven continuously installed carbonization treatment furnaces 4 are provided so as to be openable and closable, and the temperature inside the sequential treatment furnace is adjusted to continuously perform the carbonization treatment. Each partition shutter can be moved up and down by an opening / closing cylinder (not shown) or other equivalent mechanism.

[0019] In the carbonization treatment furnace 4, end shutters 6a, partition shutters 7a·7b, partition shutters 8a·8b, partition shutters 9a·9b, partition shutters 10a·10b, partition shutters 11a·11b, partition shutters 12a·12b, and end shutter 6b are arranged in this order. By arranging these adjacent shutters at equal intervals in the length direction of the carbonization treatment furnace 4, when all these shutters are closed (moved downward), the internal space of the carbonization treatment furnace 4 is sequentially from one opening (entrance) 4a side to the other opening (exit) 4b side, the first treatment space S1, the second treatment space S2, the third treatment space S3, the fourth treatment space S4, the fifth treatment space S5, the sixth treatment space S6, and the seventh treatment space S7 each independently form a sealed treatment space.

[0020] Similar to the conventional device, on the upper surface wall of the carbonization treatment furnace 4, openable and closable exhaust ports (not shown) are provided for each region of the first treatment space S1 to the fourth treatment space S4. In addition, openable and closable ventilation ports (not shown) are provided on the upper surface wall of the carbonization treatment furnace 4 for each region of the fifth treatment space S5 to the seventh treatment space S7. Further, one end of an exhaust duct (not shown) is connected, and an exhaust fan (not shown) is attached to the other end of the duct. The exhaust from the exhaust fan is carried out through an exhaust chimney pipe (not shown) with an open upper end. That is, by driving the exhaust fan with the ventilation port open, the gas in each independent internal space can be exhausted through the exhaust duct and the exhaust chimney pipe, and the independent internal space can be air-cooled.

[0021] The superheated steam is generated by boiling water supplied from a water storage tank (not shown) for steam in a boiler (not shown) (e.g., a once-through steam boiler), and is sent to a superheated steam generator (not shown) via a communication pipe (not shown). The superheated steam generator (not shown) is a device that generates superheated steam from steam, and generates superheated steam from the steam generated by the boiler. In the present embodiment, superheated steam generators connected one by one to each independent processing space S1 to S7 are arranged.

[0022] The superheated steam generator is not particularly limited, and examples include an induction superheating type superheated steam generator. As the temperature of the superheated steam generated by the superheated steam generator, 600°C can be exemplified, but it is not particularly limited to such conditions. In order to sufficiently carbonize organic substances, it is preferable to generate superheated steam of 150°C or higher with the superheated steam generator. Among them, in order to sufficiently perform the carbonization treatment of organic substances while suppressing energy costs, it is preferable to have the ability to generate superheated steam in the range of 150°C to 1,000°C.

[0023] One end of the supply pipe portion 5 is connected to the superheated steam generator, and the other end opens in the internal space of the carbonization treatment furnace 4. The carbonization treatment furnace 4 may be supplied from above, or from below, or from above and below. Although not shown, a heating device (e.g., a heating burner) for heating an intermediate position of the supply pipe portion 5 may be provided separately as needed.

[0024] As described above, the carbonization and oilification treatment apparatus 1 according to the present invention has the same basic configuration as the conventional treatment apparatus, and based on such a configuration, while transferring the object to be treated such as food waste accommodated in the accommodation container 2 from the first treatment space S1 to the seventh treatment space S7, the carbonization and oilification treatment is performed by controlling the supply of superheated steam into the treatment furnace in the same manner as in the conventional case.

[0025] However, in the invention of the present application, unlike the conventional device, the transfer means for sequentially feeding the storage container 2 into the carbonization treatment furnace 4 is configured not to rely on the transfer conveyor provided in the treatment furnace. The transfer means is configured such that a member provided on the back side of the storage container 2 abuts against a member that rotates by a drive motor provided at a position that serves as an inlet or outlet of an end shutter or a partition shutter, and while engaging, acts as a force to move the storage container 2 forward. Hereinafter, such a configuration will be described.

[0026] In the invention of the present application, a drive motor 15 is installed at the lower back side of the transfer path 3 at positions between the processing inlet position of the storage container 2 and the end shutter 6a, between the adjacent partition shutters 7a and 7b and the partition shutters 12a and 12b, and between the end shutter 6b and the processing outlet of the storage container 2. As shown in FIGS. 2 and 3, a tongue-shaped feed member 16 is attached to the drive motor 15 on a rotating shaft protruding from the transfer path 3. By rotating this tongue-shaped feed member 16 with the drive motor 15, an operation of abutting against, engaging with, and separating from a member installed on the back surface of the storage container 2, which will be described later, is performed.

[0027] The storage container 2 is a container formed in a substantially rectangular parallelepiped shape from a heat-resistant material, and as shown in FIG. 4, transfer wheels 20 are attached to the four corners on the back side of the bottom surface. Further, three contact-engagement-separation members 21 having a parallelogram shape in plan view are attached at equal intervals in an oblique direction facing the inside of the processing furnace (forward direction) from the long-side end portion on the back side of the bottom surface.

[0028] As described above, the tongue-shaped feed member 16 attached to the rotating shaft of the installed drive motor 15 and the contact-engagement-separation member 21 attached to the back side of the storage container 2 will be used to describe the transfer function that can transfer the storage container 2 into the processing furnace 4 and further into the next-stage processing furnace without relying on a conventional transfer conveyor.

[0029] Fig. 5 is an operational explanatory diagram for explaining how such a transport function is exerted. Fig. 5(a) is a plan view showing a state in which the storage container 2 is, for example, at the processing entrance in front of the end shutter 6a. When the storage container 2 is in the position shown in Fig. 5(a), the drive motor 15 starts to rotate at a low speed so as to generate sufficient torque. When the drive motor 15 rotates, the tongue-shaped sending member 16 starts to rotate in the direction of the arrow as shown in Fig. 5(b), and the tip of the tongue-shaped sending member 16 abuts against the first of the three abutting engagement and separation members 21 attached to the back side of the storage container 2.

[0030] When the tongue-shaped sending member 16 rotates further, as shown in Figure 1(c), the abutment engagement and separation member 21 is attached at an angle so as to face toward the processing furnace (forward direction), so that the tongue-shaped sending member 16 rotates while engaging with the abutment engagement and separation member 21, and as the rotation continues, a force is transmitted to the storage container 2 in the direction of sending out the storage container 2 (the direction of the large arrow in the figure).

[0031] As the rotation continues, as shown in Figure (d), the storage container 2 is sent out, and the tongue-shaped sending member 16 is disengaged from the abutting engagement and disengagement member 21, completing the first rotation, and the sending out of the storage container 2 is temporarily halted in this disengaged state.

[0032] Furthermore, when the tongue-shaped sending member 16 rotates for the second time, the tongue-shaped sending member 16 has the same positional relationship with the second abutting engagement and separation member 21 as the first abutting engagement and separation member 21, and as shown in FIG. 5(e), the tongue-shaped sending member 16 abuts against, engages with, and separates from the second abutting engagement and separation member 21, and the container 2 advances further, and the tongue-shaped sending member 16 rotates for the third time. The container 2 is transferred into the first processing space S1 by the third rotation. When the processing in the first processing space S1 is completed, the partition shutters 7a and 7b are opened, and the drive motor 15 provided between these shutters is driven to repeat the same operations shown in FIG. 5(a) to (e), so that the container 2 can be transferred into the processing furnace of the next stage.

[0033] The distance by which the storage container 2 is sent out, that is, the distance by which it is transferred, can be set as desired depending on the length of time during which the tongue piece of the tongue-shaped feeding member 16 and the contact-engagement-disengagement member 21 are engaged, the number of attachment of the contact-engagement-disengagement member 21, and the interval length therebetween. It is only necessary to set the transferable distance in consideration of the length of the storage container 2 and the passing length in the processing furnace 4.

[0034] As described above, the transfer of the storage container in the carbonization treatment apparatus of the present invention can be performed without providing a transfer conveyor as in the prior art in a processing furnace at a high temperature. Therefore, the interior state of the furnace can be configured extremely simply, and the transfer of the storage container when performing continuous carbonization treatment can be configured as a transfer means that does not cause problems with heat resistance to superheated steam and heating by a burner in the processing furnace. With such a configuration, it is possible to realize a transfer of the storage container that is less likely to cause failures or damages and is suitable for performing continuous processing in consideration of safety.

Industrial Applicability

[0035] The present invention can be configured as a simple and less-failure transfer means for a storage container containing an object to be processed into a processing furnace in any processing apparatus or processing method using superheated steam. In particular, since the safety of a heat treatment apparatus that performs continuous processing for a long time can be enhanced, the present invention enhances the applicability to the field of such processing apparatuses.

Explanation of Reference Numerals

[0036] 1 Carbonization treatment apparatus 2 Storage container 3 Transfer path 4 Carbonization treatment furnace 5 Supply pipe section 6a, 6b End shutters 7a, 7b~12a, 12b Partition shutters 15 Drive motor 16 Tongue-shaped feeding member 21 Contact-engagement-disengagement member

Claims

【Claim 1】 A storage container for storing carbonization and oilification products, a carbonization and oilification furnace in the form of a tubular body having an opening at both ends in the longitudinal direction and a transfer path of the storage container provided inside, a superheated steam generator, and a supply pipe section for supplying superheated steam generated by the superheated steam generator into each of the carbonization and oilification furnaces. In a carbonization and oilification treatment apparatus, both-end shutters are provided at the openings at both ends of the carbonization and oilification furnace, and partition shutters are arranged at intervals in the longitudinal direction of the carbonization and oilification furnace to partition both ends of the formed internal treatment space, and the both-end shutters and the partition shutters are provided so as to be openable and closable. Superheated steam is supplied from the supply pipe section to each of a plurality of independent treatment spaces formed when the end shutters and the partition shutters are closed, and the temperature of the superheated steam supplied from the supply pipe section to each independent treatment space is variably controlled for each independent treatment space. A drive motor is installed below the transfer path at each part where the end shutter and the partition shutter open and close, a tongue-shaped feeding member is provided on a rotating shaft protruding to the surface side of the transfer path of the drive motor, and on the back side of the bottom surface of the storage container, when the tongue-shaped feeding member rotates by the drive motor, a plurality of contact-engagement-disengagement members that contact the tongue-shaped feeding member and engage and disengage so that a transfer force in the forward direction is transmitted to the storage container following the rotation thereof are provided at regular intervals. A carbonization and oilification treatment apparatus characterized in that each time the tongue-shaped feeding member is rotated, the contact-engagement-disengagement with a plurality of contact-engagement-disengagement members provided at the regular intervals is sequentially repeated so that the storage container can be transferred in the forward direction.

Images