Composite material separation apparatus

Abstract

To provide a composite material separation apparatus which can acquire a fibrous or granular inorganic material from which an organic material has been sufficiently removed.SOLUTION: A composite material separation apparatus comprises: a rotatable kiln cylindrical body 10 as a cylindrical body having a feed port 11 and an extraction port 12, which is communicated with the inside of each pipe of a suction pipe 60 and an exhaust pipe 70 for superheated steam so that superheated steam can flow through the inside; screw conveyance means 20 having a screw shaft 21 rotating together with the kiln cylindrical body 10, a screw blade 22 and a conveyance regulation plate 23 erected on an outer circumferential face of the screw shaft 21; rotation driving means 30 rotating the screw shaft 21; a heat insulation material 40; and an induction heating coil 50.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a separation treatment device for composite materials. [Background technology]

[0002] Conventionally, it has been proposed to use a rotary kiln as a device for vaporizing and removing organic materials from composite materials that combine organic materials such as resins with inorganic materials such as metals, metal compounds, and reinforcing fibers, and separating and obtaining inorganic materials (see Patent Document 1).

[0003] This rotary kiln is a device that supplies composite material into a rotatable kiln cylinder, rotates the kiln cylinder while heating it, heats and transports the composite material supplied into the kiln cylinder, vaporizes the organic material (resin) contained in the composite material and removes it from the exhaust section, and separates and removes the inorganic materials (metals, metal compounds, reinforcing fibers, etc.) from the kiln cylinder.

[0004] Furthermore, as such a rotary kiln for material processing, one has been proposed in which a screw is placed inside the kiln cylinder to transport material supplied into the interior from a supply port provided at one end of the kiln cylinder to an outlet provided at the other end of the kiln cylinder (see Patent Document 2). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2019-109010 [Patent Document 2] Special Publication No. 2004-516447 Summary of the Invention [Problem to be solved by the invention]

[0006] (1) However, in conventional rotary kiln processing devices, depending on the composition of the composite material, it may not be possible to sufficiently remove the organic materials that make up the composite material, and clumps containing residual organic materials may be removed from the outlet of the kiln cylinder. While extending the kiln cylinder may be considered to sufficiently remove the organic materials from such composite materials, this is not practical in terms of the installation space of the device.

[0007] (2) When a composite material contains multiple types of inorganic materials of different sizes, such as electronic components, metal foil, and reinforcing fibers, it is desirable to separate and recover these inorganic materials by type. Furthermore, if relatively large inorganic materials, such as electronic components, are transported within the kiln cylinder until they are removed from the outlet located at the other end of the kiln cylinder, the efficiency of the separation process may decrease.

[0008] The present invention has been made based on the above circumstances. A first object of the present invention is to provide a separation and treatment apparatus for composite materials that can obtain fibrous or granular inorganic materials from which organic materials have been sufficiently removed.

[0009] A second object of the present invention is to provide a composite material separation processing device that can efficiently separate and process composite materials containing multiple types of inorganic materials of different sizes, and that can separate and obtain multiple types of inorganic materials by type (size). [Means for solving the problem]

[0010] The separation and treatment apparatus for a composite material of the present invention is a treatment apparatus for vaporizing and removing an organic material from a composite material containing an organic material and an inorganic material, and separating and obtaining the inorganic material, the treatment apparatus comprising: a rotatable cylindrical kiln cylinder having a supply port at one end of the kiln cylinder described below for supplying the composite material into the interior thereof, and at least one outlet at the other end of the supply port for removing the inorganic material separated from the composite material, the interior of which is in communication with an intake pipe and an exhaust pipe for a heating fluid so that the heating fluid can flow through the interior thereof; a screw conveying means including a screw shaft arranged inside the kiln cylinder and rotatable together with the kiln cylinder, and a screw blade formed of a spiral protrusion on the outer circumferential surface of the screw shaft; a rotation drive means for rotating the screw shaft together with the kiln cylinder so that the composite material is transported from one end side to the other end side inside the kiln cylinder; a heating means arranged to surround the outer peripheral surface of the kiln cylinder and configured to heat the heating fluid flowing inside the kiln cylinder so that the heating fluid is maintained at a temperature at which the organic material can be vaporized; The screw conveying means is characterized in that at least one conveying regulating plate, which is lower than the height of the ridges, is erected on the outer peripheral surface of the screw shaft between the ridges (between the valleys of axially adjacent ridges).

[0011] In the composite material separation and processing apparatus of the present invention, it is preferable that one conveying regulating plate is erected having a height such that a gap (G) of 5 to 10 mm is formed between the conveying regulating plate and the inner peripheral surface of the kiln cylinder.

[0012] In the composite material separation processing apparatus of the present invention, it is preferable that a plurality of the transport regulating plates are provided upright and spaced apart in the axial direction, and the height of these transport regulating plates increases from one end side to the other end side. [Effects of the Invention]

[0013] According to the apparatus for separating and treating a composite material of the present invention, it is possible to obtain a fibrous or granular inorganic material from which organic material has been sufficiently removed.

[0014] Furthermore, according to the composite material separation processing device of the present invention, which has multiple transport regulating plates that increase in height from one end to the other end, composite materials containing multiple types of inorganic materials of different sizes can be efficiently separated and processed, and the multiple types of inorganic materials can be separated and obtained by type (size). [Brief explanation of the drawings]

[0015] [Figure 1A] 1 is a partially cutaway front view showing a separation treatment device according to a first embodiment of the present invention. [Figure 1B] 1 is a side view showing a separation treatment device according to a first embodiment of the present invention. [Figure 2] 1 is a partially cutaway front view showing a main part of a separation treatment device according to a first embodiment of the present invention. [Figure 3] 1 is a schematic diagram of a separation treatment device according to a first embodiment of the present invention. [Figure 4] FIG. 4 is a schematic diagram of a separation treatment device according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] First Embodiment The separation processing device 100 of this embodiment shown in Figures 1 (Figures 1A and 1B) to 3 is a processing device for vaporizing and removing the organic material from a composite material containing an organic material and an inorganic material, and separating and obtaining the inorganic material. An example of a composite material that can be treated by the separation treatment device 100 is carbon fiber reinforced plastic (CFRP).

[0017] The separation treatment device 100 is cylindrical and has a supply port 11 at one end for supplying a composite material (CFRP) therein and a discharge port 12 at the other end for discharging inorganic material (carbon fiber) separated from the composite material. The kiln cylinder 10 is rotatable and communicates with an intake pipe 60 and an exhaust pipe 70 for superheated steam so that superheated steam (heated fluid) can flow through the kiln cylinder 10. The kiln cylinder 10 has a screw shaft 21 disposed inside the kiln cylinder 10 and rotates together with the kiln cylinder 10, and screw blades 22 consisting of ridges formed in a spiral on the outer circumferential surface of the screw shaft 21. The kiln is equipped with a conveying means 20; a rotary drive means 30 that rotates the screw shaft 21 together with the kiln cylinder 10 so that the composite material is conveyed inside the kiln cylinder 10 from one end to the other; and an induction heating coil 50 that is arranged to surround the outer surface of the kiln cylinder 10 via a heat insulating material 40 and heats the superheated steam flowing inside the kiln cylinder 10 so that it is maintained at a temperature at which the organic material (resin) can vaporize.The screw conveying means 20 is equipped with a conveying regulating plate 23 that is lower than the height of the ridges that make up the screw blades 22 and is erected on the outer surface of the screw shaft 21 between the ridges (between the valleys of adjacent ridges in the axial direction). In FIG. 3, the flow of superheated steam inside the kiln cylinder 10 is indicated by arrows.

[0018] The separation treatment device 100 of this embodiment comprises a kiln cylinder 10, a screw conveying means 20, a rotational driving means 30, an insulating material 40, an induction heating coil 50, an intake pipe 60 for superheated steam, an exhaust pipe 70, and guide rollers 95, 96.

[0019] The kiln cylinder 10 is a rotatable cylinder, and at one end thereof is provided a supply port 11 for supplying the composite material (shown as W1 in Figure 3) into the interior, and at the other end thereof is provided an outlet 12 for removing the inorganic material (shown as Y1 in the same figure) separated from the composite material.

[0020] The outer diameter of the kiln cylinder 10 is, for example, 110 to 120 mm, and a suitable example is 115 mm. The inner diameter of the kiln cylinder 10 is, for example, 100 to 110 mm, and a suitable example is 105 mm.

[0021] One end of the kiln cylinder 10 is reduced in diameter, and a flange 101 is provided at the reduced-diameter end, to which a disk-shaped member 13 is fixed by a fastening member 91 (bolt and nut).

[0022] The other end of the intake pipe 60 passes through the disk-shaped member 13 via a bearing (not shown), and the disk-shaped member 13 is placed on a guide roller 95 so as to be rotatable around the intake pipe 60. The other end 62 of the intake pipe 60 opens inside the kiln cylinder 10.

[0023] A flange 102 is provided at the other end of the kiln cylinder 10, and a disk-shaped member 14 is fixed to this flange 102 by fastening members 92 (bolts and nuts).

[0024] One end of an exhaust pipe 70 is fixed to the disk-shaped member 14 via an integral flange 72, and the disk-shaped member 14 is placed on a guide roller 96 so as to be rotatable together with the exhaust pipe 70. One end 71 of the exhaust pipe 70 opens inside the kiln cylinder 10.

[0025] As shown in Figure 1A, the exhaust pipe 70 is connected to the rotary drive shaft 31 of the rotary drive means 30 via a cross pipe 73, and as the exhaust pipe 70 rotates together with the rotary drive shaft 31, the disc-shaped member 14, the kiln cylinder 10 and the disc-shaped member 13 rotate around the central axis of the kiln cylinder 10 as the rotation axis.

[0026] The screw conveying means 20 is composed of a screw shaft 21, screw blades 22, and a conveyance regulating plate 23, and is disposed inside the kiln cylinder 10.

[0027] The screw shaft 21 is made of a tubular body having one end region (region from the center in the axial direction toward the one end) punched. One end 211 of the screw shaft 21 (tubular body) is bullet-shaped and substantially sealed. Therefore, the superheated steam ejected from the opening at the other end 62 of the intake pipe 60 does not immediately flow into the tube of the screw shaft 21, but flows from one end to the other end inside the kiln cylindrical body 10 (outside the screw shaft 21).

[0028] The outer diameter (inner diameter of the screw) of the screw shaft 21 is, for example, 30 to 40 mm, and a suitable example is 34 mm.

[0029] A flange 213 is provided at the other end of the screw shaft 21. The superheated steam that has flowed from one end to the other end inside the kiln cylindrical body 10 (outside the screw shaft 21) hits this flange 213, reverses direction, and flows from the other end to the one end, causing convection of the superheated steam inside the kiln cylindrical body 10 (on the one end side of the flange 213). The other end 212 of the screw shaft 21 opens inside the other end side of the kiln cylindrical body 10 .

[0030] The superheated steam that flows (convects) inside the kiln cylinder 10, together with the gas generated by the evaporation of the organic material, enters the tube of the screw shaft 21 through the hole 214 formed by punching, flows through the tube toward the other end, and is discharged into the inside of the kiln cylinder 10 (the other end side of the flange 213) from the opening at the other end 212 of the screw shaft 21.It is then discharged from the kiln cylinder 10 by flowing through the exhaust pipe 70 from the opening at one end 71 of the exhaust pipe 70, and then is discharged from the cross pipe 73 into a gas storage canister 74 that is connected to a scrubber (not shown).

[0031] A flange 213 provided at the other end of the screw shaft 21 is fixed to the integral flange 72 by fastening members 93 (bolts and nuts). As a result, when the exhaust pipe 70 rotates together with the rotary drive shaft 31, the screw shaft 21 rotates together with the integral flange 72, the disk-shaped member 14, the kiln cylinder 10, and the disk-shaped member 13.

[0032] A thermocouple 80 (temperature measuring means) is disposed inside the tube of the screw shaft 21, and its contact point 81 (side temperature portion) is located in the vicinity of the transport regulating plate . By placing a thermocouple 80 inside the tube of the screw shaft 21, the temperature of the superheated steam inside the kiln cylinder 10 rotating together with the screw shaft 21 can be measured, thereby making it possible to control the processing temperature using superheated steam. Here, the treatment temperature using superheated steam (temperature at which organic materials can be vaporized) is set to 450°C or higher, and preferably 450 to 600°C.

[0033] The screw blades 22 consist of ridges formed in a spiral shape on the outer circumferential surface of the screw shaft 21. By rotating the screw shaft 21 together with the kiln cylinder 10, the composite material and the inorganic materials that make it up, which are supplied into the kiln cylinder 10 from the supply port 11, can be transported to the other end where the discharge port 12 is located.

[0034] The outer diameter of the screw blade 22 (screw outer diameter) is, for example, 95 to 105 mm, and a suitable example is 100 mm. The height of the ridges (flight height) that make up the screw blade 22 is, for example, 30 to 40 mm, and a suitable example is 33 mm.

[0035] The height of the ridges that make up the screw blades 22 is preferably such that a gap G5 of 2 to 5 mm is formed between the inner circumferential surface of the kiln cylindrical body 10 and the ridges. By making the screw blades 22 (protrusions) tall enough to form a gap G5 of 2 mm or more between them and the inner surface of the kiln cylinder 10, interference between the screw blades 22 and the kiln cylinder 10 can be avoided. Furthermore, by having the screw blades 22 (protrusions) at a height such that a gap G5 of 5 mm or less is formed between them and the inner surface of the kiln cylinder 10, the effect of regulating material transport by the transport regulating plate 23 can be fully ensured.

[0036] The transport restricting plates 23 are erected on the outer peripheral surface of the screw shaft 21 between the ridges that make up the screw blades 22 (between the valleys of the ridges that are adjacent in the axial direction). Both side portions of the transport regulating plate 23 are joined to the side surfaces of the ridges, so that the transport regulating plate 23, the screw shaft 21, and the screw blades 22 are integrally formed.

[0037] The height of the conveying restricting plate 23 is lower than the height of the ridges that make up the screw blades 22, for example, 80 to 90% of the height of the ridges, and it is preferable that the height is such that a gap G of 5 to 10 mm (however, G > G5) is formed between the plate and the inner surface of the kiln cylinder 10.

[0038] If the height of the conveying restricting plate 23 is too low, the gap G formed between it and the inner surface of the kiln cylinder 10 becomes too wide, making it impossible to obtain fibrous or granular inorganic material from which organic material has been sufficiently removed. On the other hand, if the height of the conveying restricting plate 23 is too high, the gap G formed between it and the inner surface of the kiln cylinder 10 becomes too narrow, and even fibrous or granular inorganic material from which organic material has been sufficiently removed cannot pass through the gap, and the desired inorganic material cannot be extracted from the extraction outlet 12.

[0039] The rotary drive means 30 is a means for rotating the screw shaft 21 together with the kiln cylinder 10 via the rotary drive shaft 31 and the exhaust pipe 70 so that the composite material is transported from one end to the other end inside the kiln cylinder 10 while separating the organic materials that make it up.

[0040] The induction heating coil 50 is arranged to surround the outer surface of the kiln cylinder 10 via the insulation material 40, and is a means for heating the superheated steam flowing inside the kiln cylinder 10 by electromagnetic induction so that the temperature is maintained at a temperature at which the organic material (resin) can be vaporized.

[0041] The composite material supplied to the interior of the kiln cylinder 10 is crushed (reduced in diameter) by the mechanical impact of the screw while being transported from one end to the other by the screw transport means 20, promoting the separation of the organic and inorganic materials. At the same time, the organic material that comes into contact with the superheated steam is thermally decomposed and vaporized, and is discharged from the kiln cylinder 10 together with the superheated steam.

[0042] If the composite material is not sufficiently crushed (reduced in size), the separation of the organic and inorganic materials and the thermal decomposition and vaporization reaction of the organic material will also be insufficient, and the material will become a clump with the organic material remaining.

[0043] However, in the separation treatment device 100 of this embodiment, the transport restriction plates 23 are erected on the outer peripheral surface of the screw shaft 21 between the ribs, and therefore such lumps cannot pass through the gap G formed between the inner peripheral surface of the kiln cylinder 10 and the top of the transport restriction plates 23 (go over the transport restriction plates 23), and instead remain upstream of the transport restriction plates 23, where they are repeatedly crushed (defibrated) by mechanical impact from the screw until they are reduced to a size that allows them to pass through the gap G. During this time, separation of organic and inorganic materials and the thermal decomposition and vaporization reaction of the organic material continue to occur.

[0044] The material is then reduced in diameter to a size that can pass through the gap G, and the organic material is completely removed, turning it into granular or fibrous inorganic material.The material then passes through the gap G and is transported to the other end (downstream) and removed from the outlet 12. As a result, the separation processing device 100 of this embodiment can obtain fibrous or granular inorganic material from which organic material has been sufficiently removed.

[0045] Second Embodiment FIG. 4 is a schematic diagram of a separation processing apparatus 200 of this embodiment. The separation processing device 200 of this embodiment shown in Figure 4 is a processing device for vaporizing and removing organic materials from a composite material containing organic materials and multiple types of inorganic materials of different sizes, and for separating and obtaining multiple types of inorganic materials of different sizes by type (size). An example of a composite material that can be processed by the separation processing device 200 is a printed circuit board (PCB) that includes inorganic materials such as electronic components, metal foil, and reinforcing fibers.

[0046] The separation treatment device 200 is cylindrical and has a supply port 16 at one end for supplying the composite material (PCB) therein and outlets 171, 172, 173, 174 at the other end for removing the inorganic materials (electronic components, metal foil, reinforcing fibers) separated from the composite material. The separation treatment device 200 comprises a rotatable kiln cylinder 15 whose interior is in communication with an intake pipe 60 and an exhaust pipe 70 for the superheated steam so that the superheated steam can flow therethrough; a screw conveying means 200 having a screw shaft 26 disposed inside the kiln cylinder 15 and rotating together with the kiln cylinder 15; and screw blades 27 consisting of ridges formed in a spiral on the outer circumferential surface of the screw shaft 26. 5; a rotary drive means (not shown) that rotates the screw shaft 26 together with the kiln cylinder 15 so that the composite material is transported inside the kiln cylinder 15 from one end to the other; and induction heating coils 51, 52, 53 arranged to surround the outer surface of the kiln cylinder 15 via insulation 40.The screw transport means 25 is equipped with three transport regulating plates 281, 282, 283 that are spaced apart in the axial direction and whose height increases from one end to the other end, and outlets 171, 172, 173 are located upstream of the material transport flow path of each of the transport regulating plates 281, 282, 283, and outlet 174 is located downstream of the transport regulating plate 283. In FIG. 4, the flow of superheated steam inside the kiln cylinder 15 is indicated by arrows.

[0047] The separation treatment device 200 of this embodiment includes a kiln cylinder 15, a screw conveying means 25, a rotation driving means, a heat insulating material 40, induction heating coils 51 to 53, an intake pipe 60 for superheated steam, and an exhaust pipe 70. In this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

[0048] The kiln cylinder body 15 is composed of a rotatable cylindrical body. On one end side thereof, a supply port 16 for supplying a composite material (denoted as W2 in FIG. 4) therein is provided. On the other end side of the supply port 16, inorganic materials (denoted as Y , ,

[0054] ~Y 24 in the same figure) separated from the composite material and sorted according to size are provided with discharge ports 171 to 174 for taking them out. <00002{09}><00002{10}><00002{11}>The screw conveying means 25 is composed of a screw shaft 26, screw blades 27, and conveying regulating plates 281, 282, and 283, and is disposed inside the kiln cylinder body 15. <00002{12}><00002{13}><00002{14}>The screw shaft 26 and the screw blades 27 have the same configuration as the screw shaft 21 and the screw blades 22 in the separation processing apparatus 100 of the first embodiment. <00002{15}><00002{16}><00002{17}>Among the three conveying regulating plates 281 to 283, the conveying regulating plate 281 located on the most end side (upstream side) has the lowest height, for example, 20 to 30% of the height of the ridges constituting the screw blades 27. A gap G1 of, for example, 25 to 30 mm is formed between the conveying regulating plate 281 and the inner peripheral surface of the kiln cylinder body 15. <00002{18}>[[ID=I]]<00OO2{I9}><00002{20}>On the kiln cylinder body 15 on the upstream side of the conveying regulating plate 281, a discharge port 171 for taking out inorganic materials (for example, electronic components Y 21 ) that could not pass through the gap G1 is provided. <00002{21}><00002{22}><00002{23}>The conveying regulating plate 282 located on the other end side (downstream side) of the conveying regulating plate 281 has a higher height than the conveying regulating plate 281, for example, 50 to 60% of the height of the ridges constituting the screw blades 27. A gap G2 (<G1) of, for example, 15 to 20 mm is formed between the conveying regulating plate 282 and the inner peripheral surface of the kiln cylinder body 15. <00002{24}><00002{25}><00002{26}>On the kiln cylinder 15 upstream of the conveyance regulating plate 282, there is an inorganic material (for example, a metal foil Y such as a copper foil) that has passed through the gap G1 but cannot pass through the gap G2. 22 ) An outlet 172 is provided for taking it out.

[0055] The conveyance regulating plate 283 located at the other end side (downstream side) of the conveyance regulating plate 282 is higher than the conveyance regulating plate 282, and is, for example, 80 to 90% of the height of the protrusions constituting the screw blades 27. A gap G3 (<G2) of, for example, 5 to 10 mm is formed between this conveyance regulating plate 283 and the inner peripheral surface of the kiln cylinder 15.

[0056] On the kiln cylinder 15 upstream of the conveyance regulating plate 283, there is an inorganic material (for example, a fibrous or granular material Y in which an organic material remains) that has passed through the gap G2 but cannot pass through the gap G3. 23 ) An outlet 173 is provided for taking it out.

[0057] Also, on the kiln cylinder 15 downstream of the conveyance regulating plate 283, there is an inorganic material (for example, a fibrous or granular inorganic material Y from which the organic material has been completely removed) that has passed through the gap G3. 24 ) An outlet 174 is provided for taking it out.

[0058] According to the separation processing apparatus 200 of this embodiment, a plurality of types of inorganic materials contained in the composite material can be separately obtained from the outlets 171 to 174 according to the type (size). In addition, inorganic materials with a relatively large size (for example, electronic components and metal foils) can pass through the gaps G1 and G2 formed by the inner peripheral surface of the kiln cylinder 15 and the conveyance regulating plates 281 and 282, and are not conveyed to the other end side inside the kiln cylinder 15. Therefore, it is possible to prevent a decrease in the separation processing efficiency due to the presence of these inorganic materials.

[0059] The material, whose diameter has been reduced to a size that allows it to pass through the gap G3 between the inner circumferential surface of the kiln cylinder 15 and the conveyance restricting plate 283, has all of its organic material removed and becomes granular or fibrous. The material passes through the gap G3, is conveyed to the other end (downstream), and is removed from the outlet 174. This allows the fibrous or granular inorganic material, from which all of the organic material has been removed, to be removed from the outlet 174.

[0060] Although the embodiments of the present invention have been described above, the present invention is not limited to these and various modifications are possible. (1) For example, heated air may be used as the heating fluid instead of superheated steam. (2) For example, the punching process performed on the screw shaft 21 is described as being performed in an area from the center in the axial direction toward one end, but this is not limited to this. The punching process may be performed on the entire area of ​​the screw shaft 21, or on an area on the one end side closer to the center in the axial direction than the center, and is not particularly limited. (3) For example, an example has been described in which the conveying restricting plate 23, the screw shaft 21, and the screw blades 22 are integrally formed, but this is not limited to this. Each of these may be formed separately and screwed together with screws or the like. [Explanation of symbols]

[0061] 100 Separation treatment device 10 Kiln cylinder 101,102 flange 11 Supply port 12 Outlet 13,14 Disc-shaped member 20 Screw conveying means 21 Screw shaft 211 One end of the screw shaft 212 Other end of screw shaft 213 Flange 214 holes 22 screw blade 23 Conveyance control plate 30 Rotation drive means 31 Rotating drive shaft 40 Insulation 50 induction heating coil 60 Intake pipe 62 Other end of intake pipe 70 Exhaust pipe 71 One end of exhaust pipe 72 Integral flange 73 Cross pipe 74 Gas Canister 80 Thermocouple (temperature measurement means) 81 Contact point (side warm part) 91, 92, 93 Fastening members 95,96 Guide roller 200 Separation and treatment equipment 15 Kiln cylinder 16 Supply port 171,172,173,174 Outlet 25 Screw conveying means 26 Screw shaft 27 screw blade 281, 282, 283 Transport restriction plate 51, 52, 53 Heating coil

Claims

1. 1. A processing apparatus for vaporizing and removing an organic material from a composite material containing an organic material and an inorganic material, and separating and obtaining the inorganic material, comprising: a rotatable cylindrical kiln cylinder having a supply port at one end of the kiln cylinder described below for supplying the composite material into the interior thereof and at least one outlet at the other end of the supply port for removing the inorganic material separated from the composite material, the interior of the kiln cylinder being in communication with an intake pipe and an exhaust pipe for a heating fluid so that the heating fluid can flow through the interior thereof; a screw conveying means including a screw shaft arranged inside the kiln cylinder and rotatable together with the kiln cylinder, and a screw blade formed of a spiral protrusion on the outer circumferential surface of the screw shaft; a rotation drive means for rotating the screw shaft together with the kiln cylinder so that the composite material is transported from one end side to the other end side inside the kiln cylinder; a heating means arranged to surround the outer peripheral surface of the kiln cylinder and configured to heat the heating fluid flowing inside the kiln cylinder so that the heating fluid is maintained at a temperature at which the organic material can be vaporized; a conveying mechanism for conveying a composite material between the ribs, the conveying mechanism including a conveying limiting plate provided on the outer peripheral surface of the screw shaft between the ribs, the conveying limiting plate being lower than the height of the ribs;

2. The composite material separation processing device described in claim 1, characterized in that one conveying regulating plate is installed upright and has a height such that a gap of 5 to 10 mm is formed between the conveying regulating plate and the inner surface of the kiln cylinder.

3. 2. A composite material separation treatment device according to claim 1, wherein a plurality of the transport regulating plates are provided upright and spaced apart in the axial direction, and the height of the transport regulating plates increases from one end side to the other end side.

4. 4. A composite material separation processing apparatus according to claim 3, wherein the outlet is provided on the upstream side of the material transport flow path of each of the plurality of transport regulating plates and on the downstream side of the material transport flow path of the transport regulating plate located at the other end most side.

5. The composite material separation processing device described in claim 4, characterized in that the transport restricting plate located at the other end has a height such that a gap of 5 to 10 mm is formed between it and the inner surface of the kiln cylinder.

6. The composite material separation processing device described in any one of claims 2 to 5, characterized in that the screw blades are made of protrusions of a height such that a gap of 2 to 5 mm is formed between the screw blades and the inner surface of the kiln cylinder.

7. 2. The composite material separation processing apparatus according to claim 1, wherein both side portions of the transport regulating plate are joined to the side surfaces of the protrusions, thereby forming the transport regulating plate, the screw shaft, and the screw blades as a single unit.

8. 2. The apparatus for separating and treating composite materials according to claim 1, wherein the screw shaft is made of a tubular body having at least a partial area punched, and the inside of the screw shaft is in communication with the inside of the exhaust pipe.

9. 9. The apparatus for separating and treating composite materials according to claim 8, wherein one end of the screw shaft is punched.

10. 9. The apparatus for separating and treating composite materials according to claim 8, wherein a temperature measuring means is disposed inside the tube of the screw shaft.

11. 2. The apparatus for separating and treating composite materials according to claim 1, wherein the transport regulating plate is erected in parallel with the axial direction.

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