Injection device, treatment system and treatment method

Abstract

To provide a treatment system for efficiently recovering a recyclable substance.SOLUTION: An injection device 10 has a reception part 110, a conveyance part 120, a decomposition treatment region 130, an irradiation device 140, an injection part 150 and a delivery port 160. The reception part 110 receives a treatment object from outside. The conveyance part 120 conveys and supplies the treatment object having been received from the reception part 110 to the downstream side while heating the treatment object. A decomposition treatment region 130 has a space where a predetermined amount of the treatment object can be stored on the downstream side of the conveyance part 120. The irradiation device 140 irradiates the treatment object with a microwave in the decomposition treatment region 130. The injection part 150 pushes the treatment object thermally decomposed by receiving the microwave to outside of the decomposition treatment region 130. The delivery port 160 is a flow channel which sends out the treatment object pushed out from the injection part 150 to outside.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an ejection device, a processing system and a processing method. [Background technology]

[0002] There is a technique called chemical recycling that decomposes waste plastic and extracts reusable materials.

[0003] For example, the treatment device described in Patent Document 1 heats waste plastics, thermally decomposes chlorine-based polymers to generate chlorine compounds, and separates the waste plastics into molten waste plastics and the chlorine compounds. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2002-317072 A Summary of the Invention [Problem to be solved by the invention]

[0005] Further improvements in recycling technology are expected to help realize a circular economy.

[0006] The present disclosure has been made to solve such problems, and has an object to provide an ejection device and the like that efficiently recovers reusable substances. [Means for solving the problem]

[0007] The injection device according to the present disclosure has a receiving section, a transporting section, a decomposition processing area, an irradiation device, an injection section, and a sending outlet. The receiving section receives the processing object from the outside. The transporting section transports the processing object received from the receiving section while heating it, and supplies it to the downstream side. The decomposition processing area has a space downstream of the transporting section capable of retaining a preset amount of the processing object. The irradiation device irradiates microwaves to the processing object in the decomposition processing area. The injection section pushes the processing object that has been thermally decomposed by receiving the microwaves out of the decomposition processing area. The sending outlet is a flow path that sends the processing object pushed out by the injection section to the outside.

[0008] In the processing method according to the present disclosure, a processing system executes the following method. The processing system receives an object to be processed inside the processing system. The processing system heats and transports the received object to be processed, and supplies it to a decomposition processing area provided downstream. The processing system causes a preset amount of the object to be processed to remain in the decomposition processing area. The processing system irradiates microwaves to the object to be processed in the decomposition processing area. The processing system pushes the object to be processed that has been thermally decomposed by the microwaves out of the decomposition processing area through an outlet provided further downstream. Effect of the Invention

[0009] According to the present disclosure, it is possible to provide an ejection device, a processing system, and a processing method that efficiently recover reusable materials. [Brief description of the drawings]

[0010] [Figure 1] 1 is an overall configuration diagram of a processing system according to a first embodiment. [Diagram 2] FIG. 1 is a configuration diagram of an injection device according to a first embodiment. [Diagram 3] 3 is a flowchart of a processing method according to the first embodiment. [Figure 4] FIG. 11 is a configuration diagram of an injection device according to a second embodiment. [Diagram 5] FIG. 11 is a configuration diagram of a processing system according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The present invention will be described below through the embodiments of the invention, but the invention according to the claims is not limited to the following embodiments. In addition, not all of the configurations described in the embodiments are necessarily essential as means for solving the problems. For clarity of explanation, the following description and drawings are omitted and simplified as appropriate. In each drawing, the same elements are given the same reference numerals, and duplicate explanations are omitted as necessary.

[0012] <Embodiment 1> Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of a processing system according to the first embodiment. The processing system 1 shown in FIG. 1 is a schematic diagram of each component for easy understanding. The processing system 1 thermally decomposes a processing target M10 to recover a first product M21 and a second product M22. The processing system 1 has, as its main components, an ejection device 10, a secondary battery 200, a separation device 300, a storage device 400, and a control unit 500.

[0013] The following describes the injection device 10. The injection device 10 receives and thermally decomposes the treatment target M10. The injection device 10 has a receiving section 110, a transport section 120, a decomposition treatment area 130, an irradiation device 140, an injection section 150, and an outlet 160 as its main components.

[0014] The receiving unit 110 is an opening that receives the processing target M10 from the outside into the injection device 10. The receiving unit 110 supplies the received processing target M10 to the inside of the cylinder 100 of the injection device 10. The receiving unit 110 may include a feeder for weighing and receiving the processing target M10.

[0015] The processing target M10 includes at least a resin and a catalyst used for thermally decomposing the resin. The resin may be, for example, any thermoplastic resin such as polyethylene (PE), polypropylene (PP), polycarbonate (PC), acrylonitrile butadiene styrene (ABS), or polyamide (PA), or any thermosetting resin such as epoxy, unsaturated polyester, polyimide, or polyurethane. The thermoplastic resin or thermosetting resin may be a composite material containing carbon fiber, glass fiber, or cellulose fiber. The catalyst includes a substance that generates heat when exposed to a certain microwave and promotes the thermal decomposition of the resin. More specifically, the catalyst is an electromagnetic wave absorber such as iron oxide or carbon fiber. The catalyst may also include a substance that promotes thermal decomposition, such as citric acid.

[0016] The transport section 120 transports the treatment target M10 received from the receiving section 110 while heating it, and supplies it to the downstream side. The transport section 120 includes a screw that is housed in a cylindrical cylinder 100 and supported so as to be freely rotatable. The transport section 120 transports the treatment target M10 to a decomposition processing area 130 provided downstream of the cylinder 100. The transport section 120 is configured to be able to control the amount of the treatment target M10 sent to the decomposition processing area 130.

[0017] The screw includes a shaft extending along the extension direction of the cylinder 100 and a spiral flight provided on the outer periphery of the shaft. As the shaft of the screw rotates, the flight continuously pushes and moves the treatment target M10 supplied to the cylinder 100 in the rotational direction and downstream direction. In this way, the screw transports the treatment target M10 while stirring it. The transport section 120 also includes a temperature control device 170 provided in at least a part of the cylinder 100. The temperature control device 170 heats the cylinder 100. In this way, the transport section 120 can transport the treatment target M10 while heating it. The transport section 120 may stir or knead the heated treatment target M10 while transporting it.

[0018] The temperature control device 170 includes any heater capable of controlling temperature, such as a sheath heater, a coil heater, or a ceramic heater. The temperature control device 170 may be a heat medium heater that circulates a heated fluid. The temperature control device 170 may include, for example, a chiller unit that circulates a cooled fluid, or may include cooling fins or a cooling fan to promote heat dissipation.

[0019] The decomposition processing area 130 has a space capable of retaining a preset amount of the processing target M10 downstream of the transport section 120. The decomposition processing area 130 is a space for allowing the processing target M10 to absorb the microwaves irradiated by the irradiation device 140.

[0020] The irradiation device 140 irradiates microwaves to the processing target M10 in the decomposition processing area 130. The microwaves are, for example, electromagnetic waves with a frequency of 300 MHz to 30 GHz, and preferably electromagnetic waves of 2.45 GHz (2.45 gigahertz). The irradiation device 140 includes at least a magnetron that generates microwaves. The output of the magnetron is, for example, about 1000 watts. The irradiation device 140 irradiates the decomposition processing area 130 for, for example, about 5 to 10 minutes. Note that the magnetron output and the irradiation time of the irradiation device 140 shown here are examples, and the operation of the irradiation device 140 in this embodiment is not limited to the example shown here.

[0021] When the irradiation device 140 irradiates the decomposition processing area 130 with microwaves, the processing target M10 remaining in the decomposition processing area 130 receives the microwaves. Of the processing target M10 that receives the microwaves, substances that absorb microwaves, such as electromagnetic wave absorbers, are heated and the temperature rises. As a result, the resins present are also heated and pyrolyzed. The temperature inside the decomposition processing area 130 at this time is, for example, 400 to 900 degrees Celsius.

[0022] The heated resin is decomposed into polymers, and is converted into hydrogen, lower hydrocarbons, organic gases, and other intermediate products. The irradiation device 140 further irradiates microwaves to advance pyrolysis, and a first product M21 and a second product M22 can be generated from the treatment target M10. The first product M21 is a gas and contains hydrogen. The second product M22 is a substance other than the first product M21 and contains carbon. The carbon is, for example, carbon nanotubes (CNTs). The irradiation device 140 stops irradiating the microwaves after the treatment target M10 is decomposed into the first product M21 and the second product M22.

[0023] The ejection unit 150 pushes the treatment target M10, which has been thermally decomposed by receiving microwaves, out of the decomposition treatment area 130. The ejection unit 150 is provided, for example, at the tip of a screw of the conveying unit 120. In this case, the ejection unit 150 is provided so as to be movable in the extension direction of the cylinder 100 (left and right direction in the figure) together with the screw. The ejection unit 150 enters the decomposition treatment area 130 and ejects the first product M21 and the second product M22 generated from the treatment target M10 out of the decomposition treatment area 130. More specifically, the first product M21 and the second product M22 are pushed out of the cylinder 100 through a delivery port 160 provided at the downstream end of the cylinder 100.

[0024] The outlet 160 is a flow path for sending the treatment target M10 extruded by the injection unit 150 to the outside. The outlet 160 is provided at the downstream end of the cylinder 100. The outlet 160 is connected to the separation device 300. Therefore, the first product M21 and the second product M22 extruded from the decomposition treatment region 130 are supplied to the separation device 300 via the outlet 160.

[0025] The above describes the injection device 10. With the above-mentioned configuration, the injection device 10 pyrolyzes the received treatment target M10, and supplies the first product M21 and the second product M22 generated after pyrolysis to the separation device 300. In addition, there is at least one or more irradiation devices 140 downstream of the receiving section 110, and it is also possible to change the microwave irradiation conditions among the multiple irradiation devices 140.

[0026] The secondary battery 200 supplies power to the injection device 10. More specifically, for example, the secondary battery 200 can supply power to the irradiation device 140 of the injection device 10. The secondary battery 200 is, for example, a lithium ion battery.

[0027] The secondary battery 200 can store power generated from renewable energy. The secondary battery 200 shown in FIG. 1 receives power from a wind power generation system 90. With this configuration, the treatment system 1 having the secondary battery 200 performs thermal decomposition of the treatment target M10 while suppressing the environmental load. The wind power generation system 90 is one aspect of a power generation system using renewable energy. The power generation system using renewable energy may be, for example, one that uses solar light or geothermal heat. The power generation system using renewable energy may also include, for example, a system that generates power using a hydrogen boiler that uses the generated hydrogen.

[0028] The secondary battery 200 may be a reusable product. Reusable products include, for example, batteries that have been used in electric vehicles or the like, but have been removed from the electric vehicles or the like because they no longer meet the specifications for use in electric vehicles or the like. By employing a reusable product as the secondary battery 200, the processing system 1 can reduce the environmental load.

[0029] The separation device 300 receives the first product M21 and the second product M22 from the injection device 10 and separates at least the first product M21 and the second product M22. The separation device 300 sends the first product M21 to the storage device 400 via the delivery pipe 310. The storage device 400 compresses and stores the received first product M21, for example. The separation device 300 may have a function of removing gases other than hydrogen from the first product M21 supplied to the storage device 400. For example, when the first product M21 contains carbon dioxide, the separation device 300 removes carbon dioxide from the first product M21 by a water displacement method. With this configuration, the separation device 300 extracts hydrogen from the pyrolyzed treatment target M10.

[0030] The separation device 300 also discharges the separated second product M22 to the outside from the discharge port 320. When the second product M22 contains substances other than carbon, the separation device 300 may have a function of separating the carbon from the other substances. With this configuration, the separation device 300 extracts carbon from the pyrolyzed treatment target M10.

[0031] The control unit 500 is communicatively connected to at least the injection device 10, and controls the operation of the injection device 10. The control unit 500 is a control device including a calculation device such as a CPU (Central Processing Unit), a memory, and a communication interface. The control unit 500 may also be communicatively connected to the secondary battery 200 and the separation device 300, and control the injection device 10 while acquiring data from these.

[0032] The processing system 1 has been described above. In the processing system 1, the irradiation device 140 of the injection device 10 irradiates the processing target M10 with microwaves to heat the processing target M10 to a temperature at which hydrogen can be separated. The irradiation device 140 also irradiates the processing target M10 with microwaves to heat the processing target M10 to a temperature at which carbon can be separated. As a result, the separation device 300 separates and extracts hydrogen from the pyrolyzed processing target M10. The separation device 300 also further separates and extracts carbon from the pyrolyzed processing target M10.

[0033] The treatment system 1, with the above-mentioned configuration, recovers hydrogen and carbon from the treatment target M10. The treatment target M10 includes, for example, waste plastic. The Sustainable Development Goals (SDGs) adopted by the United Nations General Assembly include ensuring a sustainable consumption and production pattern. The treatment system 1 can contribute to ensuring a sustainable consumption and production pattern by recovering reusable hydrogen and carbon from the waste plastic. Furthermore, the treatment system 1 can receive at least a portion of the power for the devices used in the treatment system 1 from renewable energy. In this way, the treatment system 1 can contribute to the realization of a sustainable society.

[0034] Next, the injection device 10 will be further described with reference to Fig. 2. Fig. 2 is a configuration diagram of the injection device 10. For ease of understanding, the injection device 10 is shown partially in cross section. The injection device 10 mainly comprises a receiving section 110, a screw 121, a decomposition processing area 130, an irradiation device 140, an injection section 150, and a delivery port 160. The injection device 10 further comprises a temperature control device 170 and a composite drive section 600.

[0035] For convenience of explaining the positional relationship of the components, a right-handed Cartesian coordinate system is used in Fig. 2. Also, in Fig. 3 and subsequent figures, when a Cartesian coordinate system is used, the X-axis, Y-axis, and Z-axis directions in Fig. 2 coincide with the X-axis, Y-axis, and Z-axis directions in these Cartesian coordinate systems, respectively.

[0036] The cylinder 100 is formed in a cylindrical shape and accommodates a screw 121. A composite drive unit 600 is connected to the upstream end of the cylinder 100, which corresponds to the left side in FIG. 2. The cylinder 100 also has a receiving unit 110 at an upper portion on the upstream side. The cylinder 100 also has a delivery port 160 at the downstream end, which corresponds to the right side in FIG. 2.

[0037] The composite drive unit 600 includes a drive device for driving the screw 121. The drive device includes, for example, a motor and a reducer. The composite drive unit 600 has a mechanism for rotating the screw 121. The composite drive unit 600 also has a mechanism for linearly moving the screw 121.

[0038] Here, the rotation of the screw 121 refers to the rotation of the screw 121 along its axis. As a result of the rotation of the screw 121, the treatment target M10 is transported downstream. The linear movement of the screw 121 refers to the reciprocating motion (advance and retreat motion) of the screw 121 linearly along the axis of the screw 121. As a result of the linear movement of the screw 121, the ejection section 150 provided at the tip of the screw 121 ejects the treatment target M10 remaining in the decomposition treatment region 130 to the delivery port 160.

[0039] The receiving portion 110 includes a first receiving portion 111 and a second receiving portion 112. The first receiving portion 111 is located relatively upstream of the second receiving portion 112. The second receiving portion 112 is located relatively downstream of the first receiving portion 111. The first receiving portion 111 is an inlet for receiving the resin M11. The second receiving portion 112 is an inlet for receiving the catalyst M12.

[0040] The receiving unit 110 may have a feeder or a hopper. In this case, the receiving unit 110 may have a function of adjusting the amount of the catalyst M12 according to the amount of the resin M11 to be introduced. Alternatively, the receiving unit 110 may have a function of adjusting the amount of the resin M11 according to the amount of the catalyst M12 to be introduced. With such a configuration, the injection device 10 can improve the degree of freedom in the combination of the resin M11 and the catalyst M12.

[0041] The screw 121 is one embodiment of the conveying section 120 shown in FIG. 1. The screw 121 is supported by a composite drive section 600 provided at the upstream end of the cylinder 100 so as to be rotatable and translatable. The screw 121 conveys the treatment target M10 containing the resin M11 and the catalyst M12 while mixing them. The screw 121 has at least a shaft extending from the upstream side to the downstream side and a spiral flight provided around the shaft. In addition to the spiral flight, the screw 121 may have an uneven shape for stirring or kneading the treatment target M10.

[0042] The screw 121 has an injection part 150 at its downstream tip. The shape of the injection part 150 when observed along the extension direction of the cylinder 100 is similar to the cross section of the cylinder 100, and has a gap between the injection part 150 and the cylinder 100 that allows the treatment target M10 to be pushed downstream through the gap.

[0043] The ejection unit 150 can send the treatment target M10 remaining in the decomposition treatment region 130 to the delivery port 160 by linearly moving the screw 121. The ejection unit 150 may have an uneven surface facing the decomposition treatment region 130. This allows the ejection unit 150 to agitate the treatment target M10 remaining in the decomposition treatment region 130.

[0044] In this case, the screw 121 may perform a rotational operation for stirring the processing target M10 remaining in the decomposition processing area 130 while the irradiation device 140 is irradiating microwaves. The rotational operation of the screw 121 at this time is referred to as a stirring operation. For example, the stirring operation has a different rotational speed and direction from the rotational operation (called a transport operation) when the screw 121 transports the processing target M10 to the decomposition processing area 130. For example, the stirring operation has a slower rotational speed than the transport operation. Alternatively, the rotational direction of the stirring operation may be opposite to that of the transport operation. The screw 121 may have a backflow prevention ring 122 at a portion supporting the injection section 150.

[0045] A temperature control device 170 is provided on the outer periphery of the cylinder 100. The temperature control device 170 heats the treatment target M10 transported from the upstream side to the downstream side by the screw 121. The temperature control device 170 may have a thermometer for measuring the temperature of the cylinder 100. By the temperature control device 170 heating the treatment target M10, the treatment target M10 is efficiently thermally decomposed in the decomposition treatment region 130.

[0046] The delivery port 160 provided at the downstream end of the cylinder 100 is a nozzle-shaped flow path that delivers to the outside the treatment target M10 extruded by the injection part 150. The delivery port 160 may be provided with a valve that can be opened and closed.

[0047] A decomposition treatment area 130 is provided near the delivery port 160 on the downstream side of the cylinder 100. The inner wall of the cylinder 100 in the decomposition treatment area 130 is made of a material that easily reflects microwaves, such as stainless steel.

[0048] An irradiation device 140 is provided at a position adjacent to the decomposition processing area 130. The irradiation device 140 generates microwaves and irradiates the decomposition processing area 130 with the microwaves. Therefore, the cylinder 100 has a structure that allows the microwaves generated by the irradiation device 140 to pass through the decomposition processing area 130 at least in a part of the decomposition processing area 130. That is, at least a part of the inner wall of the cylinder 100 includes a part that can irradiate the decomposition processing area 130 with microwaves. The irradiation device 140 has a timer for measuring the irradiation time of the microwaves. The irradiation device 140 may include a thermometer for measuring the temperature of the decomposition processing area 130. The irradiation device 140 may include a thermometer for measuring the pressure of the decomposition processing area 130.

[0049] The microwave-passable structure may be, for example, a structure in which an antenna for irradiating the microwaves generated by the irradiation device 140 to the decomposition treatment area 130 is exposed. The microwave-passable structure may include, for example, a member that passes the microwaves generated by the irradiation device 140 but does not pass the treatment target M10 or the pyrolyzed first product M21 and second product M22.

[0050] Next, a processing method executed by the processing system 1 will be described with reference to Fig. 3. Fig. 3 is a flowchart of the processing method according to the first embodiment. The processing shown below may be, for example, instructions given by the control unit 500 to each component.

[0051] First, the injection device 10 adjusts the temperature of the cylinder 100, which is a processing furnace (step S11). More specifically, the temperature control device 170 of the injection device 10 adjusts the output so that a thermometer installed in the cylinder 100 indicates a temperature within a preset range.

[0052] Next, the receiving section 110 of the injection device 10 receives the treatment object M10 (or the resin M11 and the catalyst M12) into the cylinder 100 (step S12).

[0053] Next, the screw 121 conveys the received treatment target M10 while heating it (step S13). The screw 121 supplies a predetermined amount of the treatment target M10 to a decomposition treatment area 130 provided downstream.

[0054] Next, the screw 121 causes a preset amount of the treatment target M10 to remain in the decomposition treatment area 130 (step S14). At this time, the screw 121 stops the conveying operation after the preset amount of the treatment target M10 is supplied to the decomposition treatment area 130.

[0055] Next, the irradiation device 140 irradiates the processing target M10 in the decomposition processing area 130 with microwaves (step S15). The irradiation time and irradiation power of the process of irradiating microwaves by the irradiation device 140 may be preset. The process of irradiating microwaves by the irradiation device 140 may be feedback-controlled for the irradiation time and irradiation power by observing at least one of the temperature and pressure of the decomposition processing area 130. When a predetermined stop condition is satisfied, the irradiation device 140 ends the irradiation of microwaves.

[0056] Next, the ejection unit 150 pushes the target M10, which has been thermally decomposed by receiving the microwaves, out of the decomposition processing region 130 through the outlet 160 provided further downstream (step S16). More specifically, the ejection unit 150 moves from the upstream side to the downstream side, and pushes the target M10 present in the decomposition processing region 130 out to the outlet 160. Note that the target M10 at this time is in a state of being decomposed into the first product M21 and the first product M21. Also, at this time, the ejection unit 150 moves upstream after pushing the target M10 out of the decomposition processing region 130.

[0057] Next, the separation device 300 separates and extracts the received processing target M10 (the first product M21 and the second product M22) (step S17). When the separation device 300 separates and extracts the first product M21 and the second product M22, the processing system 1 ends the processing.

[0058] When the above-mentioned process is started, steps S12 to S17 are continuously executed in parallel. By repeating such intermittent operations, the injection device 20 continuously pyrolyzes the processing target M10. In this way, the processing system 1 efficiently pyrolyzes the processing target M10. Therefore, the processing method shown in FIG. 3 can efficiently recover reusable materials.

[0059] The above has described embodiment 1. With the above-mentioned configuration, this embodiment can provide an ejection device, a processing system, and a processing method that efficiently recover reusable substances.

[0060] <Embodiment 2> Next, a description will be given of embodiment 2. In embodiment 2, the configuration of the injection device is different from that in embodiment 1. Fig. 4 is a configuration diagram of an injection device 20 according to embodiment 2.

[0061] The injection device 20 has a metering block 21 and a decomposition processing block 22. The metering block 21 receives the treatment object M10, and heats and stirs or kneads the received treatment object M10, thereby supplying a preset amount of the treatment object M10 to the decomposition processing block 22. The decomposition processing block 22 pyrolyzes the treatment object M10 received from the metering block 21, and sends the pyrolyzed treatment object M10 to the separation device 300.

[0062] The metering block 21 has, as its main components, a first cylinder 101, a receiving section 110, an extrusion screw 123, a temperature control device 170, and a conveying drive section 610.

[0063] The first cylinder 101 receives the processing target M10 (resin M11 and catalyst M12) from the receiving section 110 (first receiving section 111 and second receiving section 112) and supplies the received processing target M10 to the second cylinder 102. The first cylinder 101 houses an extrusion screw 123. In addition, a conveying drive section 610 is connected to the upstream end of the first cylinder 101.

[0064] The extrusion screw 123 is rotatably supported by the conveyor drive unit 610. The extrusion screw 123 conveys the processing target M10 input from the receiving unit 110 downstream while stirring or kneading the same. The first cylinder 101 has a delivery port 113 at the downstream end. The delivery port 113 is a flow path leading to the second cylinder 102. The processing target M10 conveyed by the extrusion screw 123 is sent out to the second cylinder 102 via the delivery port 113.

[0065] The conveying drive unit 610 is a drive device that rotates and drives the first cylinder 101. The conveying drive unit 610 includes, for example, a motor and a reducer. The injection device 20 can supply a preset amount of the processing target M10 to the second cylinder 102 by controlling the rotation of the conveying drive unit 610.

[0066] The decomposition processing block 22 thermally decomposes the processing target M10 received from the metering block 21, and sends out the thermally decomposed processing target M10 (first product M21 and second product M22) to the outside of the delivery port 160. The decomposition processing block 22 has, as its main components, a second cylinder 102, a decomposition processing area 130, an irradiation device 140, an injection section 150, a delivery port 160, a temperature control device 170, and an injection drive section 620.

[0067] The second cylinder 102 has an injection drive unit 620 connected to one end (X-axis minus side) and has a delivery port 160 at the other end (X-axis plus side). The injection drive unit 620 supports the injection unit 150 so that it can move linearly. The injection unit 150 is a plunger that is provided on the second cylinder 102 so that it can slide without rattle.

[0068] The operation of the decomposition processing block 22 will be described below. When the decomposition processing block 22 receives the processing target M10 from the metering block 21, the emission unit 150 is placed at one end (the negative side of the X-axis). When the processing target M10 is received from the metering block 21, the irradiation device 140 of the decomposition processing block 22 irradiates the processing target M10 with microwaves. Then, when the thermal decomposition of the processing target M10 is completed, the emission drive unit 620 of the decomposition processing block 22 moves the emission unit 150 to the other end. As a result, the decomposition processing block 22 sends out the thermally decomposed processing target M10 to the outside of the delivery port 160. When the delivery of the processing target M10 is completed, the emission drive unit 620 moves the emission unit 150 back to the one end.

[0069] By repeating the above operations, the decomposition processing block 22 thermally decomposes the treatment object M10 received from the metering block 21 and supplies it to the separation device 300. By repeating such intermittent operations, the injection device 20 continuously thermally decomposes the treatment object M10.

[0070] As described above, in the decomposition processing block 22, the ejection section 150 has an ejection member different from a screw. This ejection member is configured to move linearly to eject the processing target M10 in the decomposition processing region 130 to the delivery port 160. With this configuration, the present embodiment can provide an ejection device, processing system, and processing method that efficiently recover reusable substances.

[0071] <Embodiment 3> Next, a third embodiment will be described. The third embodiment differs from the above-mentioned embodiments in that it has a plurality of ejection devices. The processing system in the third embodiment controls the operation of the plurality of ejection devices to perform a predetermined operation. FIG. 5 is a configuration diagram of a processing system 2 according to the third embodiment. FIG. 5 shows two processing systems 2 in different states. The processing system 2 shown in the upper part of the figure shows the processing system 2 in state T1. The processing system 2 shown in the lower part of the figure shows the processing system 2 in state T2, which is different from state T1.

[0072] The following describes the configuration of the processing system 2. The processing system 2 has, as injection devices, a first injection device 31 and a second injection device 32. The processing system 2 also has a first separation device 301, a second separation device 302, a reservoir 400, and a control unit 500.

[0073] The first injection device 31 and the second injection device 32 have the same configuration as the injection device 10 shown in Fig. 2. In the first injection device 31 and the second injection device 32, the same components as those in the injection device 10 are denoted by the same numerals. However, for distinction, the components of the first injection device 31 and the second injection device 32 are denoted by the alphabet A or B following their respective numerals. For example, the first injection device 31 has a screw 121A, and the second injection device 32 has a screw 121B.

[0074] The first injection device 31 is connected to the first separation device 301. The first injection device 31 supplies the pyrolyzed treatment target M10 to the first separation device 301. The first separation device 301 separates the received treatment target M10 into a first product M21 and a second product M22. The first separation device 301 supplies the separated first product M21 to the storage device 400.

[0075] The second injection device 32 is connected to the second separation device 302. The second injection device 32 supplies the pyrolyzed treatment object M10 to the second separation device 302. The second separation device 302 separates the received treatment object M10 into a first product M21 and a second product M22. The second separation device 302 supplies the separated first product M21 to the storage device 400.

[0076] The control unit 500 controls the operations of the first injection unit 31 and the second injection unit 32. The control unit 500 controls the injection units so that the first injection unit 31 and the second injection unit 32 alternately deliver the processing object M10.

[0077] 5, the first injection device 31 is in a state where the screw 121A has pushed out the object to be treated M10 from the first injection device 31 to the first separation device 301. Therefore, the first separation device 301 supplies the received first product M21 to the reservoir 400.

[0078] On the other hand, in state T1, the second injection device 32 has the screw 121B transporting the treatment target M10 to the decomposition treatment region 130B. Alternatively, the second injection device 32 thermally decomposes the treatment target M10 remaining in the decomposition treatment region 130B.

[0079] As described above, in state T1, the first injection device 31 is sending out the thermally decomposed treatment target M10, and the second injection device 32 is not sending out the treatment target M10.

[0080] 5, the screw 121A of the first injection device 31 transports the treatment target M10 to the decomposition treatment area 130A. Alternatively, the first injection device 31 thermally decomposes the treatment target M10 remaining in the decomposition treatment area 130A.

[0081] On the other hand, in state T2, the second injection device 32 is in a state where the screw 121B extrudes the treatment object M10 from the second injection device 32 to the second separation device 302. Therefore, the second separation device 302 supplies the received first product M21 to the storage device 400.

[0082] As described above, in state T2, the first injection device 31 is not sending out the treatment target M10, and the second injection device 32 is sending out the treatment target M10 that has been thermally decomposed.

[0083] The processing system 2 alternates between the state T1 and state T2 described above. The control unit 500 of the processing system 2 controls the first injection device 31 and the second injection device 32 to alternately send out the processing target M10 as described above. This allows the storage device 400 to continuously receive the first product M21. Therefore, the processing system 2 can efficiently collect the first product M21.

[0084] The above describes the embodiment 3. According to the embodiment 3, it is possible to provide an ejection device, a processing system, and a processing method that efficiently recover reusable substances.

[0085] Although the present invention has been described above with reference to the embodiment, the present invention is not limited to the above. Various modifications that can be understood by a person skilled in the art can be made to the configuration and details of the present invention within the scope of the invention. For example, the extruder and cylinder according to the present disclosure are not limited to a twin-screw extruder. The extruder and cylinder according to the present disclosure may be a single-screw extruder. [Explanation of symbols]

[0086] 1 Processing System 2. Processing System 10 Injection device 20 Injection device 21 Weighing Block 22 Decomposition Processing Block 31 1st injection device 32 Second injection device 90 Wind Power Generation System 100 cylinders 101 No. 1 cylinder 102 No. 2 cylinder 110 Acceptance Department 111 1st reception department 112 2nd reception department 120 Conveyor 121 Screw 123 Extrusion screw 130 Decomposition Processing Area 140 Irradiation device 141 First irradiation device 142 Second irradiation device 150 Injection part 160 outlet 170 Temperature Control Device 200 Secondary battery 300 Separation equipment 301 1st separation device 302 Second separation device 310 Delivery pipe 320 outlet 400 Reservoir 500 Control section 600 Combined Drive Unit 610 Conveyor drive unit 620 Injection Drive Unit A12 Decomposition Processing Area M10 Processing target M11 resin M12 Catalyst M21 1st product M22 2nd product

Claims

1. a receiving section that receives the object to be processed from the outside; a transport section that transports the processing object received from the receiving section while heating it and supplies it to a downstream side; a decomposition processing area downstream of the transport section, the decomposition processing area having a space capable of retaining a preset amount of the processing target; an irradiation device that irradiates the treatment object with microwaves in the decomposition treatment area; an ejection section that ejects the object to be treated that has been thermally decomposed by receiving the microwaves outside the decomposition treatment area; and a delivery port which is a flow path for delivering the treatment object extruded by the ejection unit to the outside. Injection device.

2. The transport unit has a screw that is housed in a cylinder that receives the object to be processed and is rotatably supported. The injection device according to claim 1 .

3. The screw of the transport unit performs a rotation operation for stirring the treatment object when the irradiation device irradiates the treatment object with the microwave.

3. The injection device according to claim 2.

4. The injection part is supported at the tip of the screw of the conveying part.

3. The injection device according to claim 2.

5. The injection section has an extrusion member different from the screw, The pushing member is configured to move linearly to push the processing target in the decomposition processing area to the delivery port.

3. The injection device according to claim 2.

6. the receiving section receives the processing object including at least a resin, the irradiation device irradiates the microwaves to pyrolyze the treatment target so that at least hydrogen can be separated; The ejection section pushes the pyrolyzed treatment target out of the decomposition treatment area. The injection device according to any one of claims 1 to 5.

7. The receiving portion includes a first receiving portion for receiving the resin and a second receiving portion for receiving a catalyst for promoting thermal decomposition, The transport unit transports the treatment object containing the resin and the catalyst while mixing them.

7. The injection apparatus of claim 6.

8. The irradiation device thermally decomposes the treatment target by irradiating the microwave having a frequency of 2.45 GHz.

8. The injection device according to claim 7.

9. An injection device according to claim 6 ; A separation device that separates and extracts the hydrogen from the treatment target sent out from the delivery port of the injection device. Processing system.

10. The irradiation device of the ejection device pyrolyzes the treatment object so as to further separate carbon by irradiating the microwave, The separation device further separates and extracts carbon from the pyrolyzed treatment target. The processing system of claim 9 .

11. a first injection device that is one of the injection devices and that supplies the processing object to the separation device; a second injection device that is different from the first injection device and that supplies the processing object to the separation device; a control unit that controls an operation of the first injection device and an operation of the second injection device, the control unit controls the first injection device and the second injection device to alternately eject the processing target. The processing system of claim 10.

12. Further comprising a secondary battery for supplying power to the irradiation device. The processing system of claim 10.

13. The secondary battery is capable of storing power generated by renewable energy. The processing system of claim 12.

14. Accept the object to be treated into the treatment system, The received object to be treated is transported while being heated, and is supplied to a decomposition treatment area provided downstream, A preset amount of the processing target is retained in the decomposition processing area; Irradiating the object to be treated with microwaves in the decomposition treatment area; The object to be treated that has been thermally decomposed by the microwaves is pushed out of the decomposition treatment area from a delivery port provided further downstream. Processing methods.

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