JP4799585B2 - Vacuum extrusion molding machine for producing solid waste fuel and method for producing solid waste fuel - Google Patents

Description

  The present invention relates to a vacuum extrusion molding machine for producing a solid waste fuel by dechlorinating shredder dust containing a chlorine-containing resin such as vinyl chloride and chlorine-based plastic, and a method for producing the solid waste fuel.

Conventionally, shredder dust containing chlorine-containing resin that causes environmental pollution, such as generation of highly toxic dioxins by combustion, is obliged to be disposed of in a landfill at a managed disposal site. However, for example, those derived from scrapped vehicles (ASR) are generated at a rate of about 20% of the weight of the vehicle, so that the amount reaches 1.2 million tons per year, and problems such as a shortage of managed disposal sites are becoming serious. . In addition, since the bulk density of ASR is as extremely low as 0.2 g / cm ³ or less, the volume of the ASR becomes enormous. Therefore, volume reduction of the shredder dust is an urgent task.

  On the other hand, from the viewpoint of protecting natural resources and the global environment, many attempts have been made to recycle industrial waste. In particular, with regard to scrapped automobiles and waste home appliances, the Automobile Recycling Law and the Home Appliance Recycling Law were enacted and required to be recycled and reused. Technology for recycling and reusing dust has also been developed.

  For example, Japanese Patent Laid-Open No. 2006-61900 discloses a recycling of composite waste that recovers a resin main body to be dechlorinated while heating a shredder dust containing a chlorine-containing resin by a twin screw extrusion method and extruding. A method is disclosed (Patent Document 1). Japanese Patent Laid-Open No. 2006-150294 proposes a method for recycling shredder dust that heats shredder dust from which metal pieces have been removed, dechlorinates, and then press-molds to obtain waste plastic solid fuel. (Patent Document 2).

JP 2006-61900 A JP 2006-150294 A

  However, the invention disclosed in Patent Document 1 and Patent Document 2 is a single-stage single-screw or twin-screw extruder, as shown in FIG. This is a method of degassing from the exhaust port 93 attached to the middle part. Since the shredder dust is fluidized, the degassing efficiency and degassing efficiency are low, and it takes a long time for dechlorination. There is a disadvantage of not being broken. In addition, there is a conventional problem that there is no extruder capable of high efficiency and sufficient dechlorination, and industrial practical application is difficult.

  The present invention has been made to solve such problems, and efficiently dechlorinates shredder dust generated by dismantling, resource recovery, or disposal of used end-of-life vehicles and waste home appliances. It is possible to produce solid waste fuel that can be used as fuel for existing combustion equipment, and as a result, the generation of highly toxic dioxins due to the combustion of this shredder dust is suppressed, and An object of the present invention is to provide a vacuum extrusion molding machine for producing a solid waste fuel and a method for producing the solid waste fuel, which contribute to volume reduction and recycling of the shredder dust contained therein.

  The vacuum extrusion molding machine according to the present invention is a vacuum extrusion molding machine for producing a solid waste fuel by dechlorinating a shredder dust containing a chlorine-containing resin such as vinyl chloride or chlorinated plastic. A first extruding portion comprising a charging port for mixing, a screw for kneading the charged shredder dust, dry distillation, and extruding, and a heater for dry distillation of the shredder dust on the outer peripheral surface, the first extrusion A pulverizing unit for pulverizing the shredder dust extruded from the unit, a vacuum dechlorination unit for dechlorinating the pulverized shredder dust by vacuum degassing, and a direct connection to the vacuum dechlorination unit. The shredder dust dechlorinated in the vacuum dechlorination section is kneaded, melted and extruded while being compressed. A second extruding portion having a screw and a heater for melting the shredder dust on the outer peripheral surface; and disposed at a tip of the second extruding portion, and molding the shredder dust extruded from the second extruding portion. And a forming die for the purpose.

  In this invention, the said grinding | pulverization part may be arrange | positioned in at least any one between the said 1st extrusion part and the said vacuum dechlorination part, and the inside of the said vacuum dechlorination part.

  In the present invention, the heating temperature by the heater for dry distillation may be 200 ° C. or more and 400 ° C. or less, and the pressure in the vacuum dechlorination part is −0.1013 MPa or more and −0.013 MPa or less. There may be.

  On the other hand, the first aspect of the method for producing a solid waste fuel according to the present invention is a method for producing a solid waste fuel by dechlorinating shredder dust containing a chlorine-containing resin such as vinyl chloride or chlorinated plastic. A first extruding step for kneading and shredding the shredder dust and extruding the shredder dust, a pulverizing step for pulverizing the shredder dust extruded by the first extruding step, and vacuum degassing of the crushed shredder dust. A dechlorination step for dechlorination, a second extrusion step for kneading, melting and compressing the shredder dust dechlorinated in the dechlorination step, and forming the shredder dust extruded from the second extrusion step And an extrusion step.

  Furthermore, the second aspect of the method for producing a solid waste fuel according to the present invention is a method for producing a solid waste fuel by dechlorinating shredder dust containing a chlorine-containing resin such as vinyl chloride or chlorinated plastic. A first extruding step for kneading and extruding the shredder dust to dry distillation, a pulverizing dechlorination step for pulverizing the shredder dust extruded by the first extruding step, and dechlorinating by vacuum degassing treatment, A second extrusion step for kneading, melting and compressing the shredder dust pulverized and dechlorinated by the pulverization and dechlorination step, and extruding the compressed shredder dust extruded from the second extrusion step; and have.

  According to the present invention, it is possible to efficiently dechlorinate shredder dust generated by dismantling of used automobiles and waste home appliances, resource recovery, or disposal processing, and use it as fuel for existing combustion equipment. Can produce solid waste fuel that can be produced, and as a result, it suppresses the generation of highly toxic dioxins due to the combustion of this shredder dust and contributes to volume reduction and recycling of shredder dust containing chlorine-containing resin be able to.

  Hereinafter, embodiments of a vacuum extrusion molding machine for producing a solid waste fuel and a method for producing a solid waste fuel according to the present invention will be described with reference to the drawings. FIG. 1 is a view showing an embodiment of a vacuum extruder for producing solid waste fuel according to the present invention, and FIG. 2 is a second embodiment of a vacuum extruder for producing solid waste fuel according to the present invention. The figure which shows a form, FIG. 3 is a figure which shows 3rd embodiment of the vacuum extrusion molding machine for waste solid fuel manufacture which concerns on this invention, FIG. 4 is implementation of the manufacturing method of the waste solid fuel which concerns on this invention FIG. 5 is a flowchart showing a second embodiment of the method for producing a solid waste fuel according to the present invention.

  In the present invention, “shredder dust containing chlorine-containing resin such as vinyl chloride and chlorinated plastic” means a residue obtained by separating valuable metals and the like from a mixture obtained by crushing used end-of-life vehicles and waste home appliances with a shredder. It is a generic name for the above substances, and is not particularly limited as long as it contains a chlorine-containing resin such as vinyl chloride or chlorinated plastic. For example, plastic, rubber, fiber, glass, earth and sand, glass, Examples thereof include those made of plastic, rubber, fiber and the like excluding earth and sand. The plastic may include not only plastic containing chlorine such as polyvinyl chloride and polyvinylidene chloride but also plastic containing no chlorine such as polyethylene, polypropylene, or polystyrene.

  For example, in the case of vinyl chloride, it is used in a large amount as a coating material for electric wires, etc., but vinyl chloride itself theoretically contains about 56% by weight of chlorine. This is significantly different from other polyolefin resins and polystyrene resins in terms of combustion and thermal decomposition, and as shown in FIG. 7, heat is generated while generating hydrogen chloride at a relatively low temperature of 200 ° C. or higher. Decompose.

  In addition, as shown in FIG. 7, the calorific value of shredder dust is 3600-5200 kcal / kg, and it is clear that it can be sufficiently reused as fuel.

  Further, “dechlorination” in the present invention means that a shredder dust containing a chlorinated resin kneaded and dry distilled is pulverized and placed under vacuum conditions, thereby causing degassing, and a chloride gas such as hydrogen chloride. Means to release chlorine. The “dechlorination” in the present invention is not particularly limited as long as the pulverized shredder dust can be dechlorinated by vacuum degassing.

  As shown in FIG. 8, shredder dust containing chlorine-containing resins such as vinyl chloride and chlorine-based plastics contains about 4% of chlorine, and when this chlorine burns, dioxins having extremely toxic properties are produced. This dechlorination is an important issue because it occurs.

  Hereinafter, each component will be described in more detail. As shown in FIG. 1, the vacuum extrusion molding machine 1 for producing solid waste fuel in this embodiment dechlorinates shredder dust containing chlorine-containing resin such as vinyl chloride and chlorinated plastic to produce waste solid fuel. A two-stage screw-type device to be manufactured, disposed at the upper stage of the inlet 6 for feeding the raw material G which is shredder dust containing chlorine-containing resin, and the upper stage of the vacuum extrusion molding machine 1 for producing solid waste fuel, and the raw material A first extruding unit 2 for kneading and dry distillation of G, a pulverizing device 3 for pulverizing the raw material G kneaded and dry distillation in the first extruding unit 2, and a vacuum degassing treatment of the raw material G crushed in the pulverizing device 3 The raw material G disposed in the lower stage of the vacuum extrusion molding machine 1 for producing solid waste fuel and dechlorinated in the vacuum dechlorination unit 4 is kneaded and melted. First to compress It has the extrusion part 5, the shaping | molding die 7 which shape | molds the raw material G kneaded and fuse | melted in the 2nd extrusion part 5, and the cooling fan 8 which cools the raw material G shape | molded in the shaping | molding die 7 just before it. .

  Moreover, the 1st extrusion part 2 in this embodiment is the 1st extrusion screw 21 for kneading | mixing the raw material G, and the dry distillation heater 22 used as a heat source required to dry-distill the raw material G, as shown in FIG. And a first extrusion screw motor 23 for driving the first extrusion screw 21.

  Here, “kneading” in the present invention generally means kneading so as to mix well, but includes the meaning of kneading regardless of whether or not to mix. The term “dry distillation” in the present invention generally means that a solid substance is heated and decomposed while the air is cut off, but includes the meaning that it is heated and decomposed regardless of whether or not the air is cut off. It is.

  Moreover, the 1st extrusion screw 21 in this embodiment will not be specifically limited if the raw material G can be knead | mixed, The dry distillation heater 22 in this embodiment becomes a heat source which can dry-distill the raw material G. Although there is no particular limitation as long as it is present, in the present embodiment, a material having a heating temperature of 200 ° C. or higher and 400 ° C. or lower is preferably used. As shown in FIG. 9, at a temperature lower than 200 ° C., the chloride contained in the shredder dust is not decomposed, so that dechlorination is difficult. On the other hand, at a temperature higher than 400 ° C., for example, chlorine-containing materials such as polyethylene and polypropylene This is because the resin other than the resin is decomposed and the obtained solid waste fuel may have a low calorific value.

  The first extrusion screw motor 23 in the present embodiment is particularly limited as long as the first extrusion screw 21 can drive the first extrusion screw 21 so that the first extrusion screw 21 can knead the raw material G and dry-distill. Any desired one can be used.

  Next, the pulverizing apparatus 3 in the present embodiment is an apparatus for pulverizing the raw material G that has been kneaded by the first extruding unit 2, dry-distilled, and extruded, and as shown in FIG. 32.

  Here, the crushing screw 31 in the present embodiment is not particularly limited as long as it can crush the raw material G that has been kneaded by the first extruding unit 2 and dry-distilled and extruded. A grinding device can be used. Further, the crushing screw motor 32 in the present embodiment can drive the crushing screw 31 so that the crushing screw 31 can crush the raw material G that has been kneaded by the first extruding unit 2 and dry-distilled. There is no particular limitation as long as it can be used, and a desired one can be used.

  Further, in the present embodiment shown in FIG. 1, the pulverization part in the present invention is disposed between the first extrusion part 2 and the vacuum dechlorination part 4, but is not limited to this, for example, FIG. As shown in FIG. 3, it may be arranged in the vacuum dechlorination unit 4, that is, in the vacuum chamber 41, and as shown in FIG. 3, the first extrusion unit 2 and the vacuum dechlorination unit 4 A plurality of pulverizing units may be provided, such as between and between the vacuum chamber 41 and the like.

  Further, as shown in FIG. 1, the vacuum dechlorination unit 4 in the present embodiment includes a vacuum chamber 41 that dechlorinates the raw material G crushed by the pulverizer 3 by vacuum degassing, a vacuum exhaust port 42, A feed screw 43 is provided for feeding the dechlorinated raw material G to the second extruding section 5 provided in the vacuum chamber 41 and directly connected to the vacuum dechlorination section 4.

  Here, the vacuum chamber 41 in the present embodiment is not particularly limited as long as the raw material G pulverized by the pulverizer 3 can be dechlorinated by vacuum degassing, but in the present embodiment, the pressure is −0. A vacuum chamber having a pressure of 1013 MPa or more and −0.013 MPa or less is used as a suitable vacuum chamber. In addition, the vacuum exhaust port 42 in the present embodiment is an exhaust port for exhausting a gas containing chlorine such as hydrogen chloride, that is, a chloride gas, out of the vacuum chamber 41 generated by the vacuum degassing process. If it can exhaust, it will not specifically limit. For example, a mode in which the vacuum exhaust port 42 is directly connected to an arbitrary exhaust gas treatment facility can be mentioned. Furthermore, the feed screw 43 in the present embodiment is not particularly limited as long as it can feed the raw material G dechlorinated by the vacuum degassing process in the vacuum chamber 41 to the second extrusion part, and is not limited to a desired one. Things can be used.

  Moreover, the 2nd extrusion part 5 in this embodiment fuse | melts the 2nd extrusion screw 51 for kneading | mixing the raw material G dechlorinated by the vacuum dechlorination part 4, and the raw material G, as shown in FIG. Therefore, it has a melting heater 52 as a heat source necessary for this purpose, and a second extrusion screw motor 53 for driving the second extrusion screw 51.

  Here, “melting” in the present invention generally means that a solid is heated and melted, and this solid includes a powder or a granular material. In addition, the second extrusion screw 51 in the present embodiment is not particularly limited as long as the raw material G can be kneaded, and the melting heater 52 in the present embodiment uses the raw material G dechlorinated by the vacuum dechlorination unit 4. There is no particular limitation as long as it becomes a heat source that can be melted.

  Further, the second extrusion screw motor 53 in the present embodiment drives the second extrusion screw 51 so that the second extrusion screw 51 can knead and melt the raw material G dechlorinated by the vacuum dechlorination unit 4. Any material can be used as long as it can be used.

  Further, the molding die 7 in this embodiment is arranged at the tip of the second extrusion unit 5 in the direction in which the second extrusion screw 51 extrudes the molten raw material G, and forms the molten and compressed raw material G. It produces waste solid fuel. In addition, the shaping | molding die 7 in this embodiment is not specifically limited, A desired thing, such as a well-known base, can be used.

  Further, the cooling fan 8 in the present embodiment is disposed as desired when the molten material G is compression-molded, and is not particularly limited.

Next, as shown in FIG. 4, the first aspect of the method for producing solid waste fuel in the present embodiment is as follows.
(i) Charging step S1 in which shredder dust containing chlorine-containing resin such as vinyl chloride and chlorinated plastic is charged to the charging port
(ii) First extrusion step S2 in which shredder dust containing a chlorine-containing resin such as vinyl chloride or chlorine-based plastic is kneaded, dried and extruded.
(iii) Grinding step S3 for pulverizing the shredder dust extruded in the first extrusion step S2.
(iv) Dechlorination step S4 in which the shredder dust pulverized in the pulverization step S3 is dechlorinated by vacuum degassing.
(v) Second extrusion step S5 in which the shredder dust dechlorinated in the dechlorination step S4 is kneaded, melted and extruded while being compressed.
(vi) Extrusion molding step S6 for molding the shredder dust extruded from the second extrusion step S5
As described above, the steps S1 to S6 are included.

Moreover, as shown in FIG. 5, the second aspect of the method for producing a solid waste fuel in the present embodiment is as follows.
(i) Charging step S1 in which shredder dust containing chlorine-containing resin such as vinyl chloride and chlorinated plastic is charged to the charging port
(ii) First extrusion step S2 in which shredder dust containing a chlorine-containing resin such as vinyl chloride or chlorine-based plastic is kneaded, dried and extruded.
(iii) Grinding and dechlorination step S3 in which the shredder dust extruded in the first extrusion step S2 is crushed and dechlorinated by vacuum degassing treatment.
(iv) Second extrusion step S4 in which the shredder dust dechlorinated in the dechlorination step S3 is kneaded, melted and extruded while being compressed.
(v) Extrusion molding step S5 for molding the shredder dust extruded from the second extrusion step S4
As described above, the steps S1 to S5 are included.

  The operation of the vacuum extrusion molding machine 1 for producing solid waste fuel and the production method of the solid waste fuel in the present embodiment having the above-described configuration will be described with reference to the drawings.

  As shown in FIG. 1, first, a raw material G, which is shredder dust containing a chlorine-containing resin, is charged into the charging port 6. The raw material G is kneaded by the first extrusion screw 21 of the first extrusion unit 2 driven by the first extrusion screw motor 23 of the first extrusion unit 2. The raw material G is dry-distilled by the kneading by the first extrusion screw 21 and the heating by the dry distillation heater 22, and the pulverizer 3 and the vacuum dechlorination unit are directly used by the first extrusion screw 21 in a state in which a chloride gas such as hydrogen chloride is decomposed. 4 is pushed out.

  Next, in the first aspect of the vacuum extrusion molding machine 1 for producing solid waste fuel in the present embodiment, as shown in FIG. The raw material G in a state of being decomposed is pulverized by the pulverizing screw 31 of the pulverizing apparatus 3 driven by the pulverizing screw motor 32 of the pulverizing apparatus 3. The crushed raw material G is sent out to the vacuum chamber 41 of the vacuum dechlorination unit 4, and dechlorination processing is performed in the vacuum chamber 41 by vacuum degassing processing.

  Here, in the second aspect of the vacuum extrusion molding machine 1 for producing solid waste fuel according to the present embodiment, as shown in FIG. The raw material G in a state of being decomposed is extruded into the vacuum chamber 41 of the vacuum dechlorination unit 4 by the first extrusion screw 21 of the first extrusion unit 2, and the pulverization screw 31 of the pulverization apparatus 3 disposed in the vacuum chamber 41. At the same time, the dechlorination process is performed by vacuum degassing.

  Moreover, in the third aspect of the vacuum extrusion molding machine 1 for producing solid waste fuel in the present embodiment, as shown in FIG. The decomposed raw material G is extruded to the pulverization device 3 by the first extrusion screw 21 of the first extrusion unit 2, pulverized by the pulverization screw 31, and sent to the vacuum chamber 41 of the vacuum dechlorination unit 4, and further vacuumed. At the same time as pulverization is performed by the pulverization screw 31 of the pulverization apparatus 3 disposed in the chamber 41, dechlorination is performed by vacuum degassing.

  In order for degassing and dechlorination to be performed at high speed and high efficiency in the vacuum chamber 41, it is extremely important that the surface area of the raw material G extruded into the vacuum chamber 41 is large. Therefore, the vacuum extrusion molding machine 1 for producing solid waste fuel according to the present embodiment includes the pulverizing device 3 to finely pulverize the raw material G, increase its surface area, and make it possible to enter the vacuum chamber 41. Has achieved high speed and high efficiency dechlorination.

  Next, in the vacuum chamber 41 of the vacuum dechlorination unit 4, chlorine gas such as hydrogen chloride decomposed by dry distillation contained in the raw material G is degassed from the raw material G by vacuum degassing treatment and exhausted through the vacuum exhaust port 42. Is done. Further, the dechlorinated raw material G is fed by a feed screw 43 into a second extruding unit 5 that is directly connected to the vacuum dechlorination unit 4.

  The raw material G fed to the second extrusion unit 5 by the feeding screw 43 is kneaded by the first extrusion screw 51 of the second extrusion unit 5 driven by the second extrusion screw motor 53 of the second extrusion unit 5. . The raw material G is melted by kneading by the second extrusion screw 51 and heating by the melting heater 52, and is extruded as it is by the second extrusion screw 51 in the direction of the forming die 7. The raw material G extruded by the second extrusion screw 51 is compression-molded by the extrusion force of the second extrusion screw 51 to produce a solid waste fuel.

  When the waste solid fuel burns, its volume can be reduced to 1/10 or less compared to shredder dust containing chlorinated resins such as vinyl chloride and chlorinated plastics, and landfill in a controlled disposal site Disposal can be reduced and it can greatly contribute to the extension of the allowable life of the disposal site. From the viewpoint of protecting the global environment, its social contribution is extremely large.

According to this embodiment as described above,
1. It is possible to efficiently dechlorinate shredder dust generated by dismantling of used automobiles and waste home appliances, resource recovery, or disposal.
2. Solid waste fuel that can be used as fuel for existing combustion equipment can be produced.
3. Generation | occurrence | production of the highly toxic dioxin by shredder dust containing a chlorine-containing resin can be suppressed.
4). This can contribute to volume reduction and recycling of shredder dust containing chlorine-containing resin.
5. Landfill disposal at managed disposal sites is reduced, which can greatly contribute to extending the allowable life of the disposal sites.

  In addition, the vacuum extrusion molding machine for waste solid fuel manufacture which concerns on this invention is not limited to embodiment mentioned above, It can change suitably.

  For example, the 1st extrusion part 2 and the 2nd extrusion part 5 are each arrange | positioned on the left side and the right side of the vacuum extrusion molding machine 1 for waste solid fuel manufacture, Between the first extruding unit 2 and the vacuum dechlorinating unit 4, and between the vacuum dechlorinating unit 4 and the second extruding unit 5, respectively. It may be an aspect such as disposition.

It is a figure which shows embodiment of the vacuum extrusion molding machine for waste solid fuel manufacture which concerns on this invention. It is a figure which shows 2nd embodiment of the vacuum extrusion molding machine for waste solid fuel manufacture which concerns on this invention. It is a figure which shows 3rd embodiment of the vacuum extrusion molding machine for waste solid fuel manufacture which concerns on this invention. It is a flowchart which shows embodiment of the manufacturing method of the waste solid fuel which concerns on this invention. It is a flowchart which shows 2nd embodiment of the manufacturing method of the waste solid fuel which concerns on this invention. It is a figure which shows the conventional extrusion molding machine for waste solid fuel manufacture. It is a figure showing the result of industrial analysis of shredder dust (cited by Hokkaido Industrial Development Laboratory in March 1991). It is a figure showing the result of elemental analysis of shredder dust (cited by Hokkaido Industrial Development Laboratory in March 1991). It is a figure which shows the thermoplasticization start temperature and thermal decomposition start temperature of each plastic.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum extrusion molding machine 2 1st extrusion part 3 Grinding device 4 Vacuum dechlorination part 5 2nd extrusion part 6 Input port 7 Molding die 8 Cooling fan 21 1st extrusion screw 22 Dry distillation heater 23 Motor for 1st extrusion screw 31 Crushing Screw 32 Crushing screw motor 41 Vacuum chamber 42 Vacuum exhaust port 43 Feed screw 51 Second extrusion screw 52 Melting heater 53 Motor for second extrusion screw 91 Single screw or twin screw screw 91 Heating heater 93 Exhaust port 94 Single shaft or Motor for twin screw extruder G Raw material

Claims (6)

A vacuum extrusion molding machine that produces solid waste fuel by dechlorinating shredder dust containing chlorine-containing resin such as vinyl chloride and chlorine-based plastics,
An inlet for feeding shredder dust,
A first extruding unit comprising a screw for kneading and throwing out the shredder dust that has been charged, and a heater for dry-shrinking the shredder dust on the outer peripheral surface;
A pulverizing part for pulverizing the shredder dust extruded from the first extrusion part;
A vacuum dechlorination section for dechlorinating the crushed shredder dust by vacuum degassing treatment;
Directly connected to the vacuum dechlorination unit, the screw for kneading, melting, and extruding the shredder dust dechlorinated in the vacuum dechlorination unit and melting the shredder dust on the outer peripheral surface A second extruding part comprising a heater for causing
A vacuum extrusion molding machine comprising: a molding die that is disposed at a tip of the second extrusion section and molds shredder dust extruded from the second extrusion section.   2. The vacuum extrusion molding according to claim 1, wherein the pulverization unit is disposed between at least one of the first extrusion unit and the vacuum dechlorination unit and inside the vacuum dechlorination unit. Machine.   The vacuum extrusion molding machine according to claim 1 or 2, wherein a heating temperature by the heater for dry distillation is 200 ° C or more and 400 ° C or less.   4. The vacuum extrusion molding machine according to claim 1, wherein a pressure in the vacuum dechlorination section is −0.1013 MPa or more and −0.013 MPa or less. 5. A method for producing solid waste fuel by dechlorinating shredder dust containing chlorine-containing resin such as vinyl chloride and chlorine-based plastics,
A first extruding step for kneading and shredding the shredder dust and extruding it,
A crushing step for crushing the shredder dust extruded by the first extrusion step;
A dechlorination step of dechlorinating the crushed shredder dust by vacuum degassing treatment;
A second extrusion step of extruding while compressing and kneading the shredder dust dechlorinated by the dechlorination step, and
A method for producing a solid waste fuel, comprising: an extrusion molding step for molding the shredder dust extruded from the second extrusion step. A method for producing solid waste fuel by dechlorinating shredder dust containing chlorine-containing resin such as vinyl chloride and chlorine-based plastics,
A first extruding step for kneading and shredding the shredder dust and extruding it,
Crushing and dechlorination step of crushing the shredder dust extruded by the first extrusion step and dechlorinating by vacuum degassing treatment;
A second extrusion step in which the shredder dust crushed and dechlorinated by the pulverization and dechlorination step is kneaded, melted and extruded while being compressed, and
A method for producing a solid waste fuel, comprising: an extrusion molding step for molding the shredder dust extruded from the second extrusion step.

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