JP2017131799A - Recycle system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recycle system which recovers used exhaust materials, performs regeneration processing, and is capable of cogeneration in the system with little waste exhausted out of the system.SOLUTION: An exhaust material M is supplied to a regeneration processor 10 to get a recycled product R or a valuable article V extracted via a liquid fuel manufacturing apparatus 20, a solid fuel manufacturing apparatus 30, a combustion apparatus 40, a power generator 50, and a heat recovery apparatus 60, and electric power E and heat H are taken out of a liquid fuel F2 and a solid fuel F3 manufactured by using liquid and solid wastes separated from the exhaust material as the base material. The taken out electric power E and heat H are supplied to any or all of the regeneration processor 10, the liquid fuel manufacturing apparatus 20, the solid fuel manufacturing apparatus 30, the combustion apparatus 40, the power generator 50, and the heat recovery apparatus 60, to form cogeneration 70.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a recycling system for discharged materials including industrial waste, for example, industrial waste discharged from various manufacturing processes, such as printing materials and various paints, which are difficult to form a single recycling system. The present invention relates to a recycling system for discharged materials including wastewater.

  In recent years, various types of paper, plastic containers such as PET (polyethylene phthalate) containers, consumer electronics, automobiles, and other products that are consumed in large quantities, reduce waste, and partially reuse products after use ( Reuse) and product recycling (recycling), etc., in order to make effective use of resources, advancement of systematization that considers resource saving, energy saving, waste reduction, recovery and recycling of used products, etc. ing. However, for materials discharged from various manufacturing processes where it is difficult to form a single recycling system, such as printing materials and various paints, there are many problems such as economical or difficult to always secure a predetermined amount. Due to the obstruction factors, such systemization has hardly progressed. On the other hand, at the industry unit or factory unit, commercialization has been promoted individually considering resource saving, energy saving or waste reduction, and many proposals have been made.

  For example, when recycling printing materials, improve the solvent recovery rate for printing solvents to save resources and energy, and also recover solvent gas around the printing press to comply with organic laws. There is a solvent recovery method of a gravure printing machine that facilitates (see, for example, Patent Document 1). In addition, for printing paper materials, waste synthetic paper that peels the coating film of printing ink from used synthetic paper and separates and collects the synthetic resin, which is the main raw material of synthetic paper, and the coating film of printing ink individually. (For example, refer patent document 2). Alternatively, in the waste material recycling system proposed by the same inventors as the present application, the waste material can be washed and regenerated at a low cost by using a regenerated solvent obtained by regenerating the waste liquid containing the solvent (for example, Patent Document 3). reference).

  In addition, in order to recycle recycled thinner from waste paint in painting processes such as automobile manufacturing, a step of adding and stirring sodium hydroxide to a crude distilled product of waste paint to recover an organic layer having a formaldehyde concentration of 1 ppm or less, There has been proposed a method of recycling recycled thinner from waste paint through a process of subjecting the organic layer to secondary distillation to obtain a refined product (see, for example, Patent Document 4).

JP 2005-238705 A Japanese Patent Laid-Open No. 10-6335 Japanese Patent No. 3981887 JP 2010-077167 A

However, recycling of the printing materials and various paints has the following problems.
(I) For printing materials, for example, there are various properties and characteristics that are required in addition to universal properties such as printability, quick-drying, and safety for printing solvents. There is. Furthermore, in addition to the above-mentioned legal issues, the following environmental problems and issues may arise.
(I-1) Even today, where “environmental improvement” is regarded as important, most of the printing materials used are discarded as waste, and solvents and waste that are used as industrial waste are collected by specialists. Incinerated. Among these printing materials, although there are many recyclable and recoverable valuables, the form of used products is greatly different and cannot be reused due to laws and regulations on individual waste. Currently, it cannot be reused for some reason.
(I-2) Although many recovery and recycling techniques for individual printing materials have been proposed and implemented, such as the above solvent recovery method or waste synthetic paper recovery method, etc., a very narrow range Currently, only individual collection and regeneration are possible. For example, the recovered solvent is used as a recycled solvent only at the production plant, and the recovered synthetic paper is hardly reused by the company or the company, and is used as a fuel or is simply burned to be used for printing. The environmental impact of the entire material distribution market cannot be effectively reduced.
(I-3) In particular, in gravure printing that has been widely used in recent years, the substrate is also made of paper material such as resin film or special plastics, and various printing inks, solvents, etc. are used depending on the printing technology. used. In addition, for example, there are many cases where the solvent used for ink dilution, printing ink and adhesive, pre-adhesion dilution solvent, cleaning solvent, finishing solvent, etc. are different from each other. However, it was very difficult to reuse.
(Ii) When recycling various paints, not only the primary distillation step but also the secondary distillation step generates a considerable amount of residue. Such a residue hardly decreases even if it is refluxed and mixed with the raw material for the paint used for waste, and a component that becomes a useful substance can hardly be taken out even if it is further fractionated. Therefore, it is discharged as industrial waste from each office and processed by a specialized supplier. In addition, since there is no system for collectively processing these wastes, each business operator and processing company must also perform inefficient processing as individual wastes. Under such circumstances, there is an increasing demand for an effective waste disposal system including recycling of paints.
(Iii) Furthermore, the diversification of types and properties of waste materials discharged from each manufacturing process is caused by the progress of diversification of printed materials and paints accompanying diversification of demand, and the same recycling process as before It is difficult to produce a predetermined amount of recycled products and resources, and they are increasingly treated as industrial waste. In addition, the amount of waste that cannot be dealt with by the conventional single exhaust gas treatment or waste liquid treatment has increased, and the burden of such waste treatment has been increasing.

  The object of the present invention is to use a fact that many of the discharged materials including industrial wastes such as printing materials and various paints are manufactured using petroleum-based materials as a means to solve these current problems. The used printing materials and various paints are collected and recycled, and almost all of the discharged materials are used as an energy source, so there is almost no waste discharged outside the system, and there is no thermoelectric power in the system. It is to provide a recycling system that can be combined. In other words, an object is to provide a recycling system that uses various discharged materials as raw materials, performs integrated processing from recycled products and valuables on the upstream side to thermoelectric power on the downstream side, and generates almost no discharge to the outside.

  As a result of intensive studies, the present inventors have found that the above object can be achieved by the recycling system shown below, and have completed the present invention.

The recycling system according to the present invention targets discharged materials including industrial waste discharged from various manufacturing processes,
Recycled processing equipment for recovering recycled products and valuables from the discharged materials and separating liquid or solid waste;
A liquid fuel production apparatus for producing a liquid fuel using a liquid waste separated from the discharged material and separating a waste solvent that cannot be used as the liquid fuel;
A solid fuel producing apparatus for producing a solid fuel using solid waste separated from the discharged material and the waste solvent and / or the liquid waste;
A combustion apparatus for performing a combustion process using the liquid fuel and / or solid fuel as a raw material;
A power generator for generating electric power by the combustion process;
A combustion heat generated by the combustion treatment, and a heat recovery device in which exhaust heat generated from the regeneration processing device is recovered as heat,
A part or all of the generated and recovered electric power and heat is supplied to any or some of the regeneration processing device, liquid fuel production device, solid fuel production device, combustion device, power generation device, and heat recovery device, Cogeneration is formed.

  As described above, diversification of discharged materials including industrial waste discharged from various manufacturing processes has a great influence on the recycling system. In other words, from the viewpoints of environmental improvement and work efficiency, the conventional method of collecting various kinds of discharged materials intensively and separating, regenerating, and disposing of them becomes very difficult, including the input cost and energy. It is coming. In addition, recently, distributed processing that performs separation, recycling, and disposal processing that conforms to the raw materials and manufacturing technology used at each site has become more efficient and has been utilized as a recycling system with less environmental impact. Yes. On the other hand, according to the inventor's verification, there is a finding that the tendency for most of the discharged materials including industrial waste to be disposed of to be "made from organic materials such as petroleum" is further strengthened. Has been obtained. Based on this knowledge, the present invention further promotes the viewpoint of distributed processing of discharged materials, and uses the discharged materials not only as a resource for extracting recycled products and valuable materials, but also as an organic fuel and separated from the discharged materials. Using the liquid (for example, waste solvent) or solid (for example, waste material) waste, liquid fuel and solid fuel (hereinafter sometimes collectively referred to as “RPF”) are produced, and the total amount of separated discharged materials By using as an energy source, we have made it possible to achieve a highly efficient recycling system capable of cogeneration with each plant. In other words, the “oil complex”, which consistently manufactures raw materials such as oil and natural gas from upstream naphtha to downstream consumer products, uses various discharged materials including industrial waste as raw materials. It is to provide a recycling system that can be called a “recycling complex” that performs integrated processing from recycled products and valuables on the side to thermoelectric power on the downstream side and generates almost no waste to the outside. Here, “RPF” may mean any of Refuse Plastic Fuel, Refuse Paper Fuel, Refuse Plastic & Inks slag Fuel for printing materials.

The present invention is the above recycling system, wherein the waste solvent is used as a binder for the solid fuel in the solid fuel production apparatus, or the liquid waste is used as a binding aid in addition to the waste solvent. The solid fuel is produced.
For example, taking the case of a printing material as an example, the liquid component used as the printing material includes ink, an ink solvent, an adhesive, and the like. Since these remain as discharged materials, those valuable as valuables are distilled, and high viscosity components are taken out as waste solvents. Since various components are mixed in the high-viscosity waste solvent, special treatment such as detoxification of toxic substances is often required for the exhaust gas treatment when it is burned as it is. . On the other hand, various paper materials, various films, and various fabric materials that are discharged materials can be relatively specified as the main component, and there is no need to perform special treatment as waste material, but on the other hand, formability that maintains a certain shape It may be difficult to handle during transportation. Further, the residue obtained by distillation treatment and taken out as a recycled product or a valuable material, such as a paint, contains a high-viscosity component composed of a main component “made from an organic material”. It was difficult to treat by itself, but it was found that when it was mixed with combustible solid waste such as paper and wood, it became a high calorie fuel. On the other hand, even when wood alone is burnt, the amount of heat generated per unit of combustion is small, but it has been found that the value as a fuel can be increased by combining with such high heat waste. In the present invention, by using a waste solvent as a binder and mixing with waste materials to produce a solid fuel (RPF), it has become possible to obtain a solid fuel excellent in combustibility, moldability or handling. In addition, by adding liquid waste to this, it has become possible to obtain a solid fuel with better combustibility, moldability or handling. Thus, it became possible to utilize the total amount of discharged materials as an energy source while combining materials with different properties to complement each other's issues. This makes it possible to construct a highly efficient recycling system even at the office level. In addition, it is possible to greatly reduce the electric power and heat (heat energy) supplied from the outside.

The present invention is the recycling system described above, wherein wastes of plant-derived materials such as wood chips and paper wastes are separated from the discharged materials and / or solid wastes, and mixed with the liquid wastes or solid wastes And the solid fuel is produced.
Some solid wastes extracted from the discharged materials may have low ignitability or low flammability (flame retardant) that cannot be used as fuel. For example, when plastics is the main component, a high-temperature combustion process or a long-time combustion process may be required in order to complete combustion. The present invention adds and mixes these waste solvents and plant-derived materials such as wood waste and paper waste that are not included in the waste materials or sorted out from the waste materials, thereby mixing these combustion accelerators or The function as an auxiliary combustor was extracted, and it became possible to produce solid fuel with good ignitability and high combustion efficiency. In addition, plant-derived materials have less CO ₂ generation per unit weight compared to materials mainly composed of petroleum-based materials such as plastics, and by mixing them, the CO ₂ generation rate is reduced. be able to. This makes it possible to construct a very energy efficient recycling system while reducing greenhouse gas emissions.

The present invention is the above-described recycling system, wherein the discharged material is procured from outside the recycling system, introduced into the regeneration processing apparatus, and the cogeneration is formed.
Also, recycled products and valuables collected from the regeneration processing device, liquid fuel produced in the liquid fuel production device, solid fuel produced in the solid fuel production device, electric power generated in the power generation device, and Part of the heat recovered in the heat recovery device is supplied to the outside of the recycling system.
As described above, a recycle system that intensively processes a relatively small amount of discharged materials is preferable, and a relatively wide variety of discharged materials is processed in a distributed manner. A recycling system is preferred. However, under actual operating conditions, only a specific material may be discharged in a large amount, or the variation in the discharge amount of the specific material may be very large. The recycling system according to the present invention does not constitute a fixed closed loop that is difficult to be applied to such actual operating conditions, but flows the discharged material as a raw material or the recycled product, the valuable material and the solid fuel as a deliverable. By accepting the system, it was possible to form a highly efficient cogeneration system and to operate as an extended system from the core recycling system. Furthermore, by forming such a recycling system, it is possible to form a recycling system closer to a “recycling complex”.

1 is an overall configuration diagram illustrating a recycling system according to the present invention. The whole block diagram which illustrates receipt of materials etc. with the recycling system concerning the present invention, and an external recycling system. The whole block diagram which illustrates the outline at the time of applying the recycling system concerning the present invention including a printing process.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. A recycling system according to the present invention (hereinafter referred to as “the present system”) includes a regeneration processing device, a liquid fuel production device, a solid fuel production device, a combustion device, a power generation device, and a thermal recovery device. A part or all of the generated and recovered electric power and heat is supplied to one or both of a regeneration processing device, a liquid fuel production device, a solid fuel production device, a combustion device, a power generation device, and a heat recovery device, and cogeneration. Is formed. Waste materials, including industrial waste, are used not only as a resource for extracting recycled products and valuable materials, but also as organic fuels. Liquid fuels and solid fuels are produced from the waste materials, and the total amount of separated waste materials is energy. By utilizing it as a source, it is possible to form a highly efficient combined heat and power supply in units of recycling systems and business units. Moreover, the electric power and heat supplied from the outside can be significantly reduced.

<Basic configuration of this system>
FIG. 1 shows a basic schematic overall configuration of the present system. Exhaust material M including industrial waste is supplied to the regeneration processing apparatus 10 from outside or inside the system, and is supplied via the liquid fuel production apparatus 20, the solid fuel production apparatus 30, the combustion apparatus 40, the power generation apparatus 50, and the thermal recovery apparatus 60. Thus, the recycled product R and the valuable material V are extracted, and the electric power E and the heat H are taken out. The extracted electric power E and hot heat H are collected in a power supply device and / or a heat supply device (not shown), or directly, the regeneration processing device 10, the liquid fuel production device 20, the solid fuel production device 30, and the combustion device. 40, the power generation device 50, and the heat recovery device 60 are supplied to any one of them, and the cogeneration 70 is formed. Further, the cogeneration 70 includes the amount of liquid fuel F2 and solid fuel F3 produced, the amount of supplemental air (not shown) supplied to the combustion device 40, and the operation of each device 10-60 and its associated devices. The control part 71 which controls is included. Emissions generated in the combustion device 40 is discharged is cleaned in the ejection processing unit 41 as an exhaust gas Wg and waste W _L. Hereinafter, the discharged material M related to printing materials and various paints will be described as an example of discharged material including industrial waste. Needless to say, the present system can also be applied to discharged materials including industrial waste discharged from various other manufacturing processes as described above.

[Recovery of discharged materials]
As described above, since the material M including industrial waste is mixed with various properties and materials, it is greatly different depending on the type and quantity of materials such as printing materials and various paints. Centralized collection is difficult. In the present system, the collected discharge material M is preferably subjected to a separation process into a solid material including an organic material such as a resin, a liquid material including an organic material such as various paints, and a material composed of an inorganic material. Furthermore, the immediate regeneration process can be efficiently performed by individually collecting and separating the solid materials, such as separating the waste of plant-derived materials such as wood chips and paper scraps. Here, the discharged material M includes various waste materials corresponding to industrial waste generated in the manufacturing process. For example, materials that are difficult to form a single recycling system such as printing materials and various paints are included. included. Specifically, for example, the printing materials such as various paper materials or films for printing, various inks, various adhesives, various solvents, etc. are included in the discharged materials related to the “printing materials” discharged from the printed product manufacturing process. In addition to these, these new and reclaimed products, or valuable by-products generated by the collection, separation or regeneration of these, and various by-products including electric power or heat are included. Also, not only materials for products or auxiliary materials such as adhesives and solvents for inks, but also consumables such as waste and cleaning agents used in cleaning and wiping of used printing presses in the manufacturing process. Is included.

[Recycling equipment for discharged materials]
The collected discharged material M is introduced into the regeneration processing apparatus 10, and the usable recycled product R, valuable material V, and by-product are taken out. Components other than these are used as the base material of the liquid fuel F2 and the solid fuel F3, and further, components that cannot be used as the liquid fuel F2 and the solid fuel F3 (for example, non-combustible materials such as inorganic materials) are used as waste. Processed outside the system. As described above, the discharge material M can be a combination of a wide variety of materials and cannot be uniformly regenerated. However, in general, as described above, many research results have been obtained for specific materials or regeneration technologies for specific materials. In order to be able to use such a technology, this system has a regenerating means as an important component of this system, as well as a collection technology, and secures a plurality of regenerating technologies corresponding to printing materials as a whole distribution system. In addition, in order to utilize the reproduction technology more widely, the above-described reproduction technology can be provided. The material recycled here is not only used as a recycled material alone, but also as a material close to a new material (here, referred to as a hybrid material “HB material”) by combination (mixing) with a new material. There is. This system also handles this as “recycled material”.

  Specifically, for printing materials, for example, recycled products R, valuable materials V and by-products as illustrated in Table 1 below are taken out, and the recovered ink solvent contains some ink components and the like. Even after distillation regeneration, some impurities may still be contained. At this time, when the main component is “new material” and “recycled material” is mixed to produce “HB material”, its characteristics can be used without much difference from “new material”. In addition, the high-viscosity component extracted as a residue after being subjected to distillation treatment is not only used as a binder for the solid fuel F3, but also can be combusted by mixing with a secondary distillate. A “waste solvent” can be produced and used as part of the liquid fuel F2. More specifically, Table 1 below shows examples of recycling technologies for some printing materials. It shows the form of the raw material, the form that changed with use, and the form when it was recycled. If the recycled solvent produced by the regeneration process is a solvent that can be used as a binder for the waste material in this system, a part of the recycled solvent is not collected for the recycled solvent, but a part of the binder is used for producing the solid fuel. Can be recovered as a waste solvent. In addition, various paints and the like can be reclaimed in the same manner as printing inks and ink solvents.

  In Table 1 above, for example, when PP (polypropylene) resin or PET (polyethylene terephthalate) resin is used as a printing film, the collected relatively clean film is printed ink or adhesive. After the adhering matter such as is washed, a recycled film (recycled product R) is obtained. In the case where no film is formed, the film is pulverized and then melt-processed to be formed into a pellet-shaped recycled resin (valuable material V). Film waste remaining after such regeneration treatment and release ink generated in the pulverization process are collected and become a valuable by-product as a base material of the solid fuel F3. The collected used ink was purified using a distillation apparatus. When the number of components was small, it was regenerated as regenerated ink (recycled product R), and when it could not be regenerated as ink, it was used at the time of collection. Together with the solvent for dissolving the ink, it is taken out as a recycled solvent (valuable material V). Of the distillation residue, a low viscosity component is a heavy oil substitute fuel (liquid fuel), and a high viscosity residue is a valuable byproduct as a base material for the solid fuel F3 or the HB waste solvent. The recovered solvent for used ink is purified using a distillation apparatus and recycled as a recycled solvent or purified solvent (recycled product R), and the low viscosity component of the distillation residue is HB waste solvent (liquid fuel) As described above, the residue having a high viscosity becomes a valuable by-product as the base material of the solid fuel F3 or the HB waste solvent. Further, in printing materials, trial printing and printing materials or materials of these losses and printing losses, base materials used as plates, solvents used for base material processing, and the like are regenerated. Furthermore, printed materials processed as defective products, consumables such as cut printed materials, and waste are regenerated in the same manner as described above. At this time, the recycled product can be recycled by using a recycled solvent for cleaning the used printing film or waste. On the other hand, if it is a consumable item such as a used cleaning agent or waste and it is very difficult to regenerate, including processing technology, cost and energy to be used, it can be used as a base material for the subsequent solid fuel F3. preferable.

  At this time, the power and heat R1 produced in the cogeneration 70 are used as the power and heat used in the regeneration processing apparatus 10. Heating is performed by distillation of waste solvent (for example, steam at 300 ° C. or higher), processing for preparing molten pellets of plastic waste materials, cleaning of used printing films or wastes (for example, hot water at 80 to 100 ° C.) and drying. (E.g., hot air drying at 200 ° C. or lower) and the like, and electric power can be used as a driving source for a pulverizer, a molding machine or the like, thereby forming a highly efficient combined heat and power supply.

[Liquid fuel production equipment]
In the liquid fuel production device 20, the liquid fuel F2 is produced using the liquid waste (waste solvent) separated from the discharged material M. The main component of the waste solvent can still be used as a fuel substrate because it still has organic components. The total amount of discharged materials can be used as an energy source. In this system, not only a waste solvent from which a high-viscosity component can be extracted is used as a binder, but also a waste solvent having a lower viscosity can be produced as the liquid fuel F2. Specifically, for printing materials, various paints, etc., for various printing inks, various adhesives, and waste solvents based on various solvents, which are liquid components of the discharged material M separated in the regeneration processing apparatus 10 , The liquid solvent F2 is produced by a filtration process or a sedimentation process instead of a distillation process for the waste solvent that is a residue after the primary distillation process or the secondary distillation process, and used as a binder for the solid fuel F3. .

  At this time, the electric power and the heat R2 produced in the cogeneration 70 are used as the electric power and the heat used in the liquid fuel production apparatus 20. By using it as the heat used for heat melting treatment, weight separation treatment or centrifugal separation treatment of the waste solvent, it is possible to form a highly efficient combined heat and power supply.

[Solid fuel production equipment]
In the solid fuel production device 30, the solid fuel (RPF) F3 is produced using the liquid (waste solvent) or solid (waste material) waste separated from the discharged material M. The main components of the waste solvent and the waste material can be specified as a fuel base material, and can be used as a fuel without performing a special treatment. The total amount of discharged materials can be used as an energy source. In this system, instead of producing solid fuel only with waste materials, waste materials that can take out high viscosity components are used as binders to combine exhaust materials with different properties for combustibility, moldability, or handling. An excellent solid fuel F3 can be produced. Specifically, in the printing material, waste solvents based on various printing inks, various adhesives, and various solvents, which are liquid components of the discharged material M separated in the regeneration processing apparatus 10, are used as a binder. Then, it is mixed with waste materials based on various paper materials, various films or various cloth materials, which are solid components of the discharged material M, to produce a solid fuel F3. The solid fuel F3 can improve the combustion effect by making it into a small compressed pellet shape of about 10 mm to 15 mmφ, for example.

  At this time, the electric power and the heat R3 produced in the cogeneration 70 are used as electric power and heat used in the solid fuel production apparatus 30. It is very efficient by being used as waste power cutting machine and crusher, mixing with waste solvent, driving power of stirrer and molding machine, etc., or heat used for melting, molding process and drying process of mixture etc. It is possible to form a cogeneration with high performance.

In this system, waste from plant-derived materials such as wood waste and paper waste (hereinafter referred to as “vegetable waste material”) is separated from the discharged material M and / or waste material, mixed with waste solvent or waste material, and solid It is preferable that the fuel F3 is produced. Among the fuels composed of combinations of waste solvents and waste materials as described above, for example, when plastics are the main component, there are those that have weak ignitability or poor flammability (flame retardant). Sometimes. At this time, by adding / mixing plant waste materials to these, it is possible to draw out the function as a combustion accelerator or a combustion aid, and to produce a solid fuel F3 with good ignitability and high combustion efficiency. In addition, examples of plant-derived materials include wood waste, paper waste, rice straw, etc. Compared with materials mainly composed of petroleum-based materials such as plastics, the amount of CO ₂ generated per unit weight is small and mixed. By doing so, the CO ₂ generation rate can be reduced. In the comparison in CO ₂ emissions per unit from the raw material becomes the material, large further savings.

[Formation of cogeneration]
In this system, the cogeneration 70 is formed by at least the combustion device 40, the power generation device 50, the heat recovery device 60, and the control unit 71. In the combustion apparatus 40, the liquid fuel F2 and the solid fuel F3 are introduced as the main components of the fuel, the combustion process is performed using air or the like as a combustion aid, the generated combustion heat is taken out, and the generated exhaust is discharged into the discharge processing unit 41. It is cleaned in is discharged as an exhaust gas Wg and waste W _L. The power generation device 50 can generate electric power using a steam turbine type, an internal combustion type, a combine type, or the like using the combustion heat generated by the combustion process, and obtain electric power supplied to each part in the system. Further, in the heat recovery device 60, the combustion heat generated by the combustion process is recovered, and the heat supplied to each part in the system can be obtained. Here, it is preferable that the power generation device 50 generate a high-pressure steam and generate electric power by a steam turbine type in order to balance the use of heat. Depending on the type and quantity of the discharged material M, the characteristics of the discharged material M change, and the combustion heat generated in the combustion process changes. At this time, it is possible to easily adjust the amount of electric power and heat used in each part of the system by using a steam turbine type that is relatively stable against fluctuations in the combustion heat supplied. it can. In addition, the structure which can supply the fuel or warm heat from the outside of this system at the time of a combustion start or at the time of fuel shortage is preferable. Such quantitative adjustment of the power and heat used in each part in the present system is performed in the control unit 71 based on predetermined power and heat of each part that is set in advance by receiving information from each part.

  Moreover, it is preferable that the cogeneration 70 has the installation (not shown) which can store the produced electric power and warm heat temporarily. Heat is stored in a heat storage medium with a large heat capacity such as water or oil contained in a heat storage tank covered with a heat insulating material, and used for replenishment when the amount of printing materials used decreases. Can do. Electric power can be used for replenishment when the amount of printing material used is reduced by charging a chargeable / dischargeable lead storage battery or lithium ion battery.

  At this time, the electric power produced in the cogeneration system 70 as the electric power and thermal energy used in the combustion device 40, the exhaust processing unit 41, the power generation device 50, and the thermal recovery device 60 (may be used mainly at the time of starting) Heat R4, R41, R5 and R6 are used. Heating is performed by distillation of waste solvent (for example, steam at 300 ° C. or higher), processing for preparing molten pellets of plastic waste materials, cleaning of used printing films or wastes (for example, hot water at 80 to 100 ° C.) and drying. (E.g., hot air drying at 200 ° C. or lower) and the like, and electric power can be used as a driving source for a pulverizer, a molding machine or the like, thereby forming a highly efficient combined heat and power supply.

[Acceptance of materials outside this system]
In this system, as shown in FIG. 2, it is preferable that the exhaust material Mo is procured from outside the system and introduced into the regeneration processing apparatus 10 to form the cogeneration 70. The discharged material Mo includes the above-mentioned plant waste materials that are rarely targeted in a general recycling system. From the balance between the amount of emissions and the amount used as biomass, it is possible to improve the situation in which most of the amount is incinerated. Further, the recycled product R and a part of the valuable material V (the recycled product Ro, the valuable material Vo) collected from the regeneration processing apparatus 10, the liquid fuel F 2 and the solid fuel produced in the liquid fuel production device 20 and the solid fuel production device 30. A part of the fuel F3 (solid fuel, etc. Fo), a part of the electric power E generated by the power generation device 50 (electric power Eo), and a part of the thermal heat H recovered by the thermal heat recovery device 60 (thermal heat Ho) It is preferable to be supplied outside. Rather than constituting a fixed closed loop, the exhaust material Mo as a raw material in the cogeneration 70 is procured from outside the system, and the intermediate product, the recycled product Ro, the valuable material Vo, the solid fuel Fo, and the final production By supplying the electric power Eo and the heat Ho, which are things, to the outside of the system, mutual complementation with an external recycling system having the same function as the system can be achieved. In other words, a link to a recycling system with the same cogeneration as this system is established, and the system is expanded as a system expanded from this core system by receiving fluid materials M and deliverables. can do.

[Application example of this system (link with manufacturing process)]
Furthermore, this system can provide a recycling system capable of more efficient combined heat and power by linking with a manufacturing process or a processing process (hereinafter referred to as “manufacturing process etc.”) related to the discharged material. In other words, by receiving the supply of heat source from each process together with the discharged material directly from each process to the reprocessing equipment, while supplying it to each process of power and heat source created by this system, from the manufacturing process etc. Using almost the entire amount of discharged materials as an energy source, there is almost no waste discharged outside the system including the manufacturing process (hereinafter referred to as “link system”), and cogeneration can be performed in the link system. A recycling system can be provided.

  For example, FIG. 3 illustrates a link system linked to a printed material manufacturing process (consisting of a pre-printing process, a printing process, and a post-printing process) related to a printing material. The printed material production system 80 includes various printed material manufacturing processes such as gravure printing, offset printing, letterpress printing, or silk printing, and includes a pre-printing process 81, a printing process 82, and a post-printing process 83. Exhaust materials M1, M2, and M3 (hereinafter also referred to as “exhaust materials M1 to M3”) discharged from each process of the printed material production system 80 are supplied to the regeneration processing device 10, and the liquid fuel production device 20 and the solid fuel are supplied. Through the production device 30, the combustion device 40, the power generation device 50, and the heat recovery device 60, the recycled product R and the valuable material V are extracted, and the electric power E and the heat H are extracted. The extracted electric power E and warm heat H are combined with exhaust heat H1, H1, and H3 generated in the pre-printing step 81, the printing step 82, and the post-printing step 83 (these may be collectively referred to as “exhaust heat Hp”), It is integrated into a power supply device and / or a heat supply device (not shown), or directly, a printed material production system 80, a regeneration processing device 10, a liquid fuel production device 20, a solid fuel production device 30, a combustion device 40, and a power generation device 50. , And supplied to any one or both of the heat recovery devices 60, and the cogeneration 70 is formed. In addition, the cogeneration 70 includes a control unit that controls the amount of solid fuel introduced, the amount of supplemental air (not shown) supplied to the combustion device 40, or the operation of each device 10-60 and its associated devices. 71 is included.

Specific contents of each process and discharged materials M1 to M3 from each process are as follows.
(I) The pre-printing step 11 refers to work such as planning, editing, and design determination in gravure printing, for example, and introducing a printing material A1 such as a trial printing paper material to produce an original plate or plate making. Since the operation is involved, a discharge material M1 similar to that in the printing process 12 is generated by trial production or trial printing. The printing material A1 used in the pre-printing process 11 may be a material or a recycled product that has not become a product, including a trial printing material, but is basically the same as the printing process 12.
(Ii) In the printing step 12, as exemplified in the “background art”, an operation of fixing printing ink to a paper material or a resin film suitable for each printing technique is performed. Accordingly, discharge materials M2 including new ones are generated for raw materials (printing member A2) such as various paper materials or films for printing, various inks, various adhesives, and various solvents.
(Iii) In the post-printing step 13, the finished product is selected and finished (including cutting, glossy processing, bookbinding, etc.), etc., and is carried out as a product printed matter P and processed as a defective product, etc. A part of the printed matter becomes the discharged material M3. Further, the printing member A3 used in the post-printing step 13 includes consumables such as wastes and cleaning agents used for cleaning and wiping off the used printing press for producing products, and the discharged material M3 includes In addition, a combination of these used materials and a part of the discharged material M2 is included.

At this time, in the present system, the recycled product R and the valuable material V are extracted based on the discharged materials M1 to M3 from each of the above processes, and the following waste materials and waste solvents are the liquid fuel F2 and the solid fuel F3. It becomes a base material. Furthermore, the electric power E and the hot heat H are taken out through the combustion process, and the exhaust heat Hp from each of the above steps can also be aggregated to form a combined heat and power supply in the entire link system.
(A) Waste materials for printing film, such as PP resin and PET resin such as scraps at the time of trial printing, printing or finishing, resin for loss that cannot be used as recycled resin film (pellet), or other resin ( For example, miscellaneous waste film mixed with PS (polystyrene), nylon, composite resin, etc.), slitter loss, bag making loss, and the like. At this time, the CO ₂ generation rate can be reduced by mixing the vegetable waste material Mo as described above (for example, 30%).
(B) Waste materials from printing paper materials For example, waste printing paper, film cores (paper tubes) and outer wrapping paper in addition to swarf at the time of trial printing, printing or finishing, etc. Since regeneration is difficult in terms of technology and cost, it is preferable to use a solid fuel F3 as a base material by cutting or compression treatment. The same applies to consumables such as cleaning paper and waste. Since these materials can be expected to have an effect of reducing the CO ₂ generation rate as in the case of the plant waste material Mo, it is preferable to produce the fixed fuel F3 by mixing with the waste material of the printing film.
(C) Distillation residue (ink fountain, paint residue, resin residue) and the like after distillation regeneration of waste solvent waste ink, waste ramie resin, waste paint, waste thinner and the like become the base material of the solid fuel F3. At this time, such a waste solution can be used as a binder because it contains many high viscosity components. In particular, when different materials such as a printing film and a printing paper material are used as waste materials, the function as a binder can be used effectively.

DESCRIPTION OF SYMBOLS 10 Reprocessing apparatus 20 Liquid fuel preparation apparatus 30 Solid fuel preparation apparatus 40 Combustion apparatus 41 Discharge process part 50 Power generation apparatus 60 Thermal recovery apparatus 70 Cogeneration 71 Control part E Electric power F2 Liquid fuel F3 Solid fuel H Thermal energy M Exhaust material R Recycled goods R1~R6, R41 power and heat V valuable Wg exhaust gas _{W L} waste

Claims (5)

Targeting discharged materials including industrial waste discharged from various manufacturing processes,
Recycled processing equipment for recovering recycled products and valuables from the discharged materials and separating liquid or solid waste;
A liquid fuel production apparatus for producing a liquid fuel using a liquid waste separated from the discharged material and separating a waste solvent that cannot be used as the liquid fuel;
A solid fuel producing apparatus for producing a solid fuel using solid waste separated from the discharged material and the waste solvent and / or the liquid waste;
A combustion apparatus for performing a combustion process using the liquid fuel and / or solid fuel as a raw material;
A power generator for generating electric power by the combustion process;
A combustion heat generated by the combustion treatment, and a heat recovery device in which exhaust heat generated from the regeneration processing device is recovered as heat,
A part or all of the generated and recovered electric power and heat is supplied to any or some of the regeneration processing device, liquid fuel production device, solid fuel production device, combustion device, power generation device, and heat recovery device, A recycling system characterized by the formation of cogeneration.   The waste solvent is used as a binder for the solid fuel in the solid fuel production apparatus, or the liquid waste is used as a binding auxiliary agent in addition to the waste solvent to produce the solid fuel. The recycling system according to claim 1.   Separating the waste of plant-derived material such as wood waste and paper waste from the discharged material or / and solid waste, and mixing the waste with liquid or solid waste to produce the solid fuel The recycling system according to claim 1 or 2, characterized by the above.   The recycling system according to any one of claims 1 to 3, wherein the discharged material is procured from outside the recycling system and introduced into the regeneration processing apparatus to form the cogeneration.   Recycled products and valuables collected from the regeneration processing apparatus, liquid fuel produced in the liquid fuel production apparatus, solid fuel produced in the solid fuel production apparatus, electric power generated in the power generation apparatus, and thermal recovery The recycling system according to any one of claims 1 to 4, wherein a part of the heat recovered in the apparatus is supplied to the outside of the recycling system.

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