JP3368789B2 - Method and equipment for converting plastic waste into furnace material - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses waste mainly composed of plastics (particularly, plastics as general waste) as a raw material for furnaces (particularly, reducing agents for iron sources) for blast furnaces, scrap melting furnaces and the like. The present invention relates to a raw material conversion method for processing and treatment, and equipment used for its implementation.

[0002]

2. Description of the Related Art In recent years, synthetic resins such as plastics have rapidly increased as industrial wastes and general wastes, and the treatment thereof has become a big problem. Among them, plastics, which are high-molecular hydrocarbon compounds, generate a large amount of heat during combustion, and if incinerated, they damage the incinerator and are difficult to process in large quantities.Most of them are dumped in landfill sites. It is the current situation. However, the dumping of plastics is unfavorable in terms of environmental measures, and development of a large-scale processing method for them is eagerly awaited.

Against this background, a method of using plastics as a raw material or auxiliary fuel for a blast furnace or the like is disclosed in EP-A-0622465A1 and JP-B-51-334.
No. 93 publication. In these methods, a crushed product of plastics is blown into a blast furnace as a fuel from tuyere or the like.
The conditions are 0 mm and a bulk density of 0.35 or more.

[0004]

However, as a result of repeated experiments and studies by the present inventors, when plastics are used as a raw material for blowing a blast furnace, there are the following problems to be solved. It became clear. Looking at plastics discarded as industrial waste or general waste by type, they are roughly divided into solid plastics such as plastic containers (eg, plastic bottles) and film plastics, of which the latter The film-based plastics also occupy a considerable amount in the entire waste plastics.

However, it has been found that the pulverized products of film plastics have extremely poor transportability and fluidity, and there is a serious problem in handling when used as a raw material for a furnace. That is, when plastics are blown into a blast furnace as a reducing agent of an iron source, a method of cutting out crushed plastics stored in a storage silo and supplying them by air to the blast furnace is usually adopted. Since the fluidity is extremely poor, crushed plastics containing a considerable amount of this tend to form a bridge (shelf) in the storage silo, which often causes problems that it is not possible to cut out the crushed plastics quantitatively from the storage silo, Furthermore, film-based plastics are used in the cutouts of storage silos and in air pipes (
It was found that there was a serious problem that clogging occurred in the curved pipe section and around the valve), and troubles such as inability to supply air to the blast furnace frequently occurred.

Therefore, it is practically impossible to use the film-based plastics as a raw material for blowing into a blast furnace or the like unless such a problem is solved. Considering the situation that accounts for a considerable percentage, unless the film-based plastics can be used, the merits of large-scale treatment and effective use of waste plastics will be lost.

Further, it is said that the proportion of chlorine-containing plastics such as polyvinyl chloride contained in plastics as general waste or industrial waste reaches about 15% on average. When plastics are blown into a blast furnace as a raw material, a large amount of hydrogen chloride is generated due to thermal decomposition of chlorine-containing plastics, which causes a problem of environmental pollution. On the other hand, chlorine-containing plastics that account for as much as 15% of waste plastics are simply separated from other plastics and discarded (landfill, etc.)
Therefore, as in the case of the film-based plastics described above, the merits of large-scale processing and effective utilization of waste plastics are lost. Therefore, in order to realize the waste plastics as a raw material for the furnace, it is considered essential to achieve the chlorine-containing plastics as a raw material without causing the problem of generation of hydrogen chloride gas.

Further, in order to blow plastics into the blast furnace as a raw material, it is necessary to use crushed plastic to secure combustibility, but there is a limit to the particle size that can be crushed from the viewpoint of processing cost. Therefore, as shown in the prior art, the grain size of about 1 to 10 mm is the limit of grain refinement. However, solid plastics crushed to a particle size of this size may not have sufficient combustibility in the blast furnace, so unburned plastic may be fused in the bed coke. It may significantly impair the air permeability in the furnace and hinder the operation of the blast furnace.

Further, since the solid plastics are crushed, they have an irregular and angular shape.
If the particle size is about 1 to 10 mm, the dischargeability when cutting out from the storage silo, the fluidity when feeding to the blast furnace, and the transportability are poor, and clogging occurs in the cutting part of the silo and in the air feeding pipe system. It turned out that there was also the problem of being easy. Therefore, simply add 1 to 1 plastic as proposed in the prior art.
It is extremely difficult to use plastic, which is a waste, as an injection raw material for blast furnaces on an industrial scale simply by pulverizing it to a particle size of about 0 mm, processing it into highly dense granular material, and blowing it into the blast furnace. .

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, to dispose of waste plastics regardless of their forms, and without causing problems due to chlorine-containing plastics. It is to provide a raw material conversion method capable of processing into a furnace raw material such as a furnace. Another object of the present invention is to provide a raw material production method capable of effectively improving the transportability and combustibility of plastics supplied to a furnace. Still another object of the present invention is to provide equipment suitable for producing such waste plastics as raw materials.

[0011]

The structure of the present invention for achieving such a problem is as follows. [1] We accept waste mainly composed of plastics and treat it as waste [x] consisting of lightweight materials including plastics mainly composed of film plastics and plastics mainly composed of solid plastics. At least from the step [a] of automatically separating the waste [y] consisting of a medium-weight material containing it and the waste [z] consisting of a heavy material containing substantially no plastics, and the separated waste [x]. After the main chlorine-containing plastics are separated and removed, a step b of processing into a granular furnace raw material is performed, and at least the main chlorine-containing plastics are separated and removed from the separated waste [y]. After the step c of processing into a flaky furnace raw material and the chlorine-containing plastics separated and removed in the above steps b and c are subjected to a dechlorination treatment, a granular or flaky furnace raw material is obtained. Step d for processing and step d
Process e of treating the hydrogen chloride generated by the dechlorination of the above, and said process b is at least the waste [x]
Crushing process, a process of separating and removing at least main chlorine-containing plastics from the plastics that have passed through the process, and a volume-reduced solidification by melting or semi-melting the plastics that have passed through the process And a step of separating and removing at least main chlorine-containing plastics from the waste [y], and crushing the plastics that have passed through the step, And a step of obtaining a granular or small piece of furnace raw material, wherein the step d is at least step b.
And a process of dechlorinating the chlorine-containing plastics separated and removed in step c, and a process of processing the plastics that have undergone the process into granular or flaky furnace raw material. Method of converting waste into raw material.

[2] A waste mainly composed of plastics, and a waste composed of a lightweight material containing plastics mainly composed of film-shaped plastics [x]
And a step [a] of automatically separating into a waste [y] consisting of a medium-weight material containing plastics mainly of solid plastics and a waste [z] consisting of a heavy material containing substantially no plastics. A step b of dechlorinating the separated waste [x], and then processing it into a granular or small piece of furnace raw material, and at least a major chlorine-containing plastic from the separated waste [y] Process c for separating and removing the wastes and processing into a granular or small piece of furnace raw material, and dechlorinating the chlorine-containing plastics separated and removed in the step c, to form a granular or small piece of furnace raw material. A process d for processing, and a process e for processing hydrogen chloride produced by the dechlorination process of the processes b and d, wherein the process b includes at least a process of crushing the waste [x], Went through the process It comprises a step of dechlorinating the plastics and a step of processing the plastics which have passed through the step into a granular or small piece of furnace raw material, wherein the step c is at least the major chlorine from the waste [y]. It comprises a step of separating and removing the contained plastics and a step of crushing the plastics that have passed through the step to obtain a granular or small piece-shaped furnace raw material, and the step d is at least separated and removed in the step c. 1. A method for converting a plastic waste into a furnace raw material, which comprises a step of dechlorinating chlorine-containing plastics and a step of processing the plastics that have undergone the step into granular or small pieces of furnace raw material.

[3] A waste composed mainly of plastics and a light-weight waste containing plastics mainly composed of film-shaped plastics [x]
And a step [a] of automatically separating into a waste [y] consisting of a medium-weight material containing mainly plastics as solid plastics and a waste [z] consisting of a heavy material containing substantially no plastics. And step b of processing the separated waste [x] into a granular furnace raw material, and separating and removing at least main chlorine-containing plastics from the separated waste [y], A step c for processing into a flaky furnace raw material; a step d for dechlorinating the chlorine-containing plastics separated and removed in the step c, and then processing into a granular or flaky furnace raw material; and a step e of treating hydrogen chloride generated by the dechlorination treatment of d, wherein the step b is at least a step of crushing the waste [x], and melting or semi-melting the plastics that have undergone the step. It It consists of a step of obtaining a volume-reduced solidified granular furnace material by solidifying after the step c
Comprises at least a step of separating and removing at least main chlorine-containing plastics from the waste [y], and a step of crushing the plastics that have passed through the step to obtain a granular or flaky furnace raw material. Step d is at least
A plastic system comprising a step of dechlorinating the chlorine-containing plastics separated and removed in the step c, and a step of processing the plastics that have passed through the step into a granular or flaky furnace raw material. Method of converting waste into raw material.

[4] A waste consisting mainly of plastics and a light-weight waste containing plastics mainly consisting of film-like plastics [x]
And a step [a] of automatically separating into a waste [y] consisting of a medium-weight material containing mainly plastics as solid plastics and a waste [z] consisting of a heavy material containing substantially no plastics. A step b in which at least main chlorine-containing plastics are separated and removed from the separated waste [x], and then processed into a granular furnace raw material; and the separated waste [y] is granular or small. A step c for processing into a flake-shaped furnace raw material; a step d for processing the chlorine-containing plastics separated and removed in the step b into a granular or flake-shaped furnace raw material after dechlorinating; and a step e of treating hydrogen chloride generated by the dechlorination treatment of d, wherein the step b is at least a step of crushing the waste [x], and at least a main salt from the plastics that have undergone the step. A step of separating and removing the contained plastics and a step of melting or semi-melting the plastics that have passed through the step to obtain a volume-solidified granular furnace raw material, and the step c is at least , A step of crushing the waste [y] to obtain a granular or small piece of furnace raw material, and the step d includes at least a step of dechlorinating the chlorine-containing plastics separated and removed in the step b. And a step of processing the plastics that have undergone the step into a granular or small piece-shaped furnace raw material.

[5] A waste consisting mainly of plastics and a waste consisting of a light weight containing plastics mainly consisting of film-like plastics [x]
And a step [a] of automatically separating into a waste [y] consisting of a medium-weight material containing mainly plastics as solid plastics and a waste [z] consisting of a heavy material containing substantially no plastics. A step b of dechlorinating the separated waste [x], and then processing the separated waste [y] into a granular or small piece of furnace raw material; and separating the separated waste [y] into a granular or small piece. Process c for processing into a furnace raw material, and process e for processing hydrogen chloride generated by the dechlorination process of the above process b
The step b comprises at least a step of crushing the waste [x], a step of dechlorinating the plastics that have passed through the step, and a step of degrading the plastics that have passed through the step into granular or small pieces. And a step of processing into a furnace raw material, wherein the step c comprises at least a step of crushing the waste [y] to obtain a granular or small piece of furnace raw material. Method for making furnace raw material.

[6] Waste consisting mainly of plastics, and a waste consisting of light weight containing plastics mainly consisting of film-like plastics [x]
And a step [a] of automatically separating into a waste [y] consisting of a medium-weight material containing mainly plastics as solid plastics and a waste [z] consisting of a heavy material containing substantially no plastics. And a step b of processing the separated waste [x] into a granular furnace raw material, and a step c of processing the separated waste [y] into a granular or flaky furnace raw material. In the step b, at least a step of crushing the waste [x] and a granular furnace raw material that has been volume-reduced by melting or semi-melting the plastics that have passed through the step and then solidifying A process for converting a plastic waste into a furnace raw material, characterized in that the step c comprises at least a step of crushing the waste [y] to obtain a granular or small piece of furnace raw material.

[7] In the method for producing a raw material according to the above [1] to [6],
In the step a, the waste mainly composed of plastics is automatically separated into a waste [x], a waste [y], and a waste [z] by a single separation treatment. Of furnace raw material. [8] In the raw material production method according to the above [1] to [6], in step a, the waste mainly composed of plastics is a waste composed of a lightweight material including plastics mainly composed of film-shaped plastics [ x] and a waste [y + z] consisting of medium-weight materials and heavy materials mainly containing solid plastics, and then the waste [y + z] is discarded as waste [y] and waste. A method for converting a plastic waste into a furnace raw material, which is characterized by automatically separating into [z].

[9] In the method for producing a raw material according to the above [1] to [8],
Step a includes at least a step of breaking a bag body containing a waste mainly composed of plastics, a step of separating and removing iron-based waste from the waste that has passed through the step by magnetic sorting, A method for converting a plastic-based waste into a furnace raw material, which comprises a step of automatically separating the waste that has passed through the process into a waste [x], a waste [y], and a waste [z]. [10] A method for producing a plastic-based waste as a raw material for raw materials according to the above-mentioned [1] to [9], characterized in that the automatic sorting of the waste in step a is performed by wind screening. [11] The method for producing a plastic waste as a raw material in the raw material production method according to any of [1] to [9] above, wherein the automatic sorting of the waste in step a is performed by rocking sorting.

[12] In the raw material production method of the above [8], in step a, automatic sorting of waste mainly consisting of plastics into waste [x] and waste [y + z] is performed by rocking sorting. A method for converting a plastic waste into a furnace raw material, characterized in that the subsequent automatic separation of the waste [y + z] into the waste [y] and the waste [z] is carried out by wind sorting or rocking sorting. [13] In the raw material production method according to the above [1] to [3], step c includes at least a step of separating and removing at least a major non-plastic waste from the waste [y], and a waste that has passed through the steps. At least a major chlorine-containing plastics are separated and removed, and the plastics that have passed through the process are crushed and processed into a granular or small piece of furnace raw material. Method for making furnace raw material.

[14] In the raw material production method of the above [1] or [4], in the step of separating and removing the chlorine-containing plastics in the step b, a wet method using a difference in specific gravity between the chlorine-containing plastics and other plastics is used. A method for converting plastic waste into a furnace raw material, characterized in that chlorine-containing plastics are separated and removed by a separation method. [15] In the raw material production methods of the above [1] to [3], in the step of separating and removing the chlorine-containing plastics in the step c, the plastics are irradiated with light, and infrared rays or a near wavelength of a specific wavelength of the irradiation light is irradiated. A method for converting a plastic waste into a furnace raw material, which is characterized by distinguishing chlorine-containing plastics from other plastics by absorbing infrared rays and separating and removing the chlorine-containing plastics.

[16] In the raw material conversion method of the above [1] to [6], at least the granular furnace raw material obtained in step b and the granular or flaky furnace raw material obtained in step c are mixed. Then, the mixture is used as a raw material for blowing into a furnace, which is a method for producing a plastic waste as a raw material. [17] In the raw material production method according to the above [1] to [6], the granular or flaky furnace raw material obtained in step b, step c and step d has a bulk density of 0.30 or more and an angle of repose of 40 ° or less. A method for converting a plastic waste into a raw material for a furnace. [18] A method of supplying a raw material to a furnace, which comprises pneumatically supplying the mixture of the raw materials of the above [16] to the furnace and blowing the mixture into the furnace.

[19] Waste consisting mainly of plastics, which is a lightweight waste containing plastics mainly consisting of film-like plastics [x]
And a waste [y] consisting of medium-weight materials containing solid plastics as a main component and a waste [z] consisting of heavy materials containing substantially no plastics. A sorting facility A, a treatment line B for processing at least major chlorine-containing plastics from the separated waste [x], and then processing into granular furnace raw material, and the separated waste [ y), at least the main chlorine-containing plastics have been separated and removed, and then the processing line C for processing into a granular or small piece of furnace raw material and the chlorine-containing separated and removed in the processing line B and the processing line C After dechlorinating plastics, a processing line D for processing into a granular or small piece of furnace raw material, and hydrogen chloride generated by the dechlorination of the processing line D The treatment line B comprises a crushing device for crushing the waste [x], and chlorine-containing plastics separated and removed from the plastics crushed by the crushing device. And a granular solidification device for processing into a granular furnace raw material whose volume has been solidified by melting or semi-melting the plastics that have passed through the separation and removal device and then solidifying. , The processing line C is waste [y]
A separation / removal device for separating and removing chlorine-containing plastics from the product, and a processing device for crushing the plastics that have passed through the separation / removal device to form a granular or small piece of furnace raw material. Line D is the processing line B
And a chlorine removing device for dechlorinating the chlorine-containing plastics separated and removed in the processing line C, and a processing device for processing the plastics passing through the chlorine removing device into granular or small pieces of furnace raw material A facility for making plastic waste into a furnace raw material, which comprises:

[20] In the furnace raw material production facility of [19] above,
After the waste [x] is dechlorinated, it is provided with a processing line B'for processing into a granular or small piece of furnace raw material, and the processing line B'is at least for dechlorinating plastics. A facility for converting a plastic waste into a furnace raw material, comprising a chlorine removing device and a processing device for processing the plastics that have passed through the chlorine removing device into a granular or small piece-shaped furnace raw material.

[21] In the furnace raw material conversion equipment of [19] or [20] above, in the processing line B, a conveying path that enables the plastics that have passed through the crushing device to be supplied to the granular solidification device without passing through the separation and removal device. A facility for making plastic waste into a furnace, which is characterized by the provision of [22] In the raw material conversion equipment of the above [19] to [21], in the processing line C, the waste [y] received in the line
A facility for converting plastic waste into a furnace raw material, which is provided with a transportation route that enables the supply of the waste to a crushing device without passing through a separation and removal device.

Here, plastics mainly composed of film-like plastics (hereinafter referred to as "film-based plastics") and plastics mainly composed of solid-state plastics (hereinafter referred to as "plastics" for the plastic raw material production process of the present invention. The amount of "solid plastics" supplied may vary to some extent over time due to the nature of waste, and in the case of a relatively short time, either type of plastics It is also possible that only the supply is provided. In such a case, the plastics separated in the step a and treated in the steps b and c may temporarily be either film-based plastics or solid-based plastics. Needless to say, the raw material production method of the present invention includes such cases. Plastics made by the method of the present invention are not limited to blast furnaces and scrap melting furnaces,
It can be used in all kinds of furnaces (for example, fuel furnaces) in which plastics can be used as a raw material.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION The method for producing waste plastics as a raw material according to the present invention is based on the above finding that the presence of film plastics in waste plastics makes it virtually impossible to use plastics as a furnace raw material. Based on this, plastics to be used as furnace raw materials are separated into film-based plastics and solid plastics, and these are processed into granules suitable for furnace raw materials (particularly solid materials for pneumatic transportation) in different processes. The basic feature is processing.

In particular, regarding film-based plastics, it is possible to obtain a granular plastic material having extremely excellent fluidity, transportability and combustibility when processed by a specific method, and such a granular plastic material. By mixing with a pulverized product such as solid plastics,
It has been found that the fluidity, transportability and flammability of the entire plastic material can be remarkably enhanced, and the raw material method constituted based on these findings is another feature. further,
In particular, from the viewpoint of ensuring high dischargeability of the granular plastic material from the storage silo and transportability in the pneumatic tube, it was found that it is essential to set the angle of repose of the granular plastic material within a specific numerical range. Another feature is a raw material conversion method constructed on the basis of such findings.

FIG. 1 is a flow chart showing an embodiment of the first raw material production method of the present invention. In the method for producing raw materials shown in FIG. 1, plastic-based wastes (hereinafter referred to as “plastic-based wastes”) are used as film-based plastic-based wastes, solid-based plastics-based wastes and weights. Process a for separating into non-plastic wastes having a certain amount, process b for processing the separated film-based plastics, and process for processing similarly separated solid object-based plastics c, a step d for treating the chlorine-containing plastics separated and removed in the steps b and c, and a step e for treating the hydrogen chloride generated in the step d.

In the step a, in the sorting (sorting) step a ₁ , the plastic waste is composed of a waste [x] which is a lightweight material containing film plastics and a medium weight material containing solid plastics. The waste [y] is automatically separated into the waste [z] consisting of a heavy substance containing substantially no plastics. Here, among the film-based plastics in the waste [x] made of a light-weight material, a sheet-shaped or bag-shaped plastic film (for example, a garbage collection bag or the like is also included), It includes relatively thin plastic solids (eg, plastic containers, trays, etc.). In addition to this, some or all of foamable plastic such as Styrofoam,
Other than plastic, paper, cloth, metal foil, etc. may also be included.

In addition, among the solid plastics in the waste [y] consisting of medium weight materials, usually, plastic bottles (eg PET bottles), plastic cases and other plastic products (eg containers, Includes solid plastics such as toys. In addition to this, foamable plastic that has not been separated into the waste [x],
Other than plastic, paper, cloth, metal foil, and relatively lightweight metal material (for example, thin metal plate, aluminum can) may be included. In addition, the waste [z] consisting of heavy items usually contains glass products such as bottles and relatively heavy metal materials such as steel cans.

The automatic separation of the plastic waste into the above-mentioned waste [x], waste [y] and waste [z] in step a ₁ may be carried out by a single separation treatment or by a plurality of separation treatments. It may be performed by a classification process. For example, in the latter case, as shown in FIG. 2, the plastic waste is treated as a waste [x] consisting of a light-weight material and a waste consisting of a medium-weight material and a heavy-weight material in the first separation treatment step a ₁ ′. After the automatic separation into y + z], the waste [y + z] is automatically separated into waste [y] and waste [z] in the second separation processing step a ₁ ″.

The method of automatically separating the plastic waste as described above is not particularly limited, but typical methods include a wind power selection method and an oscillating selection method. Among them, the wind power selection method uses the fact that air is blown to the waste and the flight distance of the waste that accompanies the air flow varies depending on the weight, weight / volume ratio, and weight / area ratio of the waste. The objects are separated, and the lightweight (for example, the waste [x]), the medium-weight (for example, the waste [y]), and the heavy (for example, the waste [ z]) or a separate collection means for each of the light weight (for example, the waste [x]) and the medium weight / heavy weight (for example, the waste [y + z]) to separate each waste. This is a method of collecting, and a specific example thereof will be described later in detail.

Further, in the swing selection method, a repulsive plate which is installed so as to be inclined in the longitudinal direction and which can be swung is used, and the weight difference of the waste loaded on the repulsive plate is used to generate the waste. It is to sort out. In this method, when waste is loaded on the repulsion plate while swinging the repulsion plate in the tilt direction and the vertical direction (plate thickness direction), for example, medium weight / heavy weight (for example, the waste [y + z ]) Falls down along the slanted repulsion plate and is discharged from one end side of the repulsion plate, while the lightweight material (for example, the waste [x]) gradually moves upward in the slanted repulsion plate. And is discharged from the other end of the repulsion plate. In addition, on the same principle, for example, a light / medium weight object (for example, the waste [x + y]) and a heavy object (for example,
Separation from the waste [z]), medium weight (eg, the waste [y]) and heavy (eg, the waste [z])
It is also possible to separate it from. A specific example of this swing selection method will also be described in detail later.

Further, by combining the swing sorting method and the wind power sorting method, it is possible to sort the light weight, the medium weight and the heavy weight. In this method, by blowing air from below onto the waste material on the repulsion plate, only the light weight material (for example, the waste material [x]) is blown off and collected by a dedicated recovery means, while the heavy material (for example, The waste [z]) is dropped downward along the slanted repulsion plate and discharged from one end side of the repulsion plate, and the medium weight (for example, the waste [y]) is slanted. The repulsion plate is gradually moved upward and discharged from the other end side of the repulsion plate. A specific example of this method will also be described in detail later. In order to blow air to the waste on the repulsion plate from below as described above, a large number of through holes are provided in the repulsion plate, and air is blown through the through holes from the lower side of the repulsion plate, or A method of blowing air from below the inclined repulsion plate along the inclination direction of the repulsion plate can be adopted.

Therefore, in the step a, these sorting (sorting) methods are used, and the plastic waste is treated as the waste [x] and the waste [y] by one or more sorting processes.
And waste [z] are automatically sorted. In the case where this automatic separation is performed by two separation processes, first, the plastic waste is a waste [x] consisting of a light weight and a waste consisting of a middle weight and a heavy weight according to the above-mentioned swing selection method. After automatically separating into [y + z], the waste [y + z] is discarded into the waste [y] by the above-mentioned wind sorting method or swing sorting method.
It is possible to adopt a method such as automatic separation into the waste and the waste [z].

Further, general waste collected as non-burnable waste is usually carried into the raw material conversion step in the form of a garbage bag for collection, and some wastes such as steel cans are included in the waste. Since the iron-based waste is contained in a relatively large amount, the step a in the embodiment of FIG. 1 is the step a in which the bag body (collection bag) containing the plastic-based waste is broken.
₂ and step a in which iron-based waste is separated and removed by magnetic sorting from the waste taken out from the bag in this step a
₃ and the above step a ₁ for automatically separating the wastes that have undergone this step
It consists of In the bag breaking process of the step a ₂ , the waste is taken out from the bag by cutting the bag with a cutter, for example. Further, in the magnetic selection in the step a ₃ , the iron-based waste is adsorbed by the magnet and separated and removed from the waste.

The step b is a step in which chlorine-containing plastics are separated and removed from the waste [x] containing the film-based plastics separated in the step a, and then processed into a granular furnace raw material. Step b is at least step b _{1 of} crushing waste [x], step b _{2 of} separating and removing at least main chlorine-containing plastics from the plastics that have passed through this step, and melting the plastics that have passed through this step. Alternatively, it comprises a step b ₃ of obtaining a granular furnace raw material whose volume is solidified by semi-melting and then solidifying.

In the step b ₁ , the waste [x] is crushed by the crushing device, but this crushing treatment may be carried out in a plurality of crushing steps. In the step b ₂ , only chlorine-containing plastics such as polyvinyl chloride (PVC) and polyvinylidene chloride (PVDC) are separated and removed from the film plastics. Chlorine-containing plastics such as PVC and PVDC have a larger specific gravity than other plastics (for example, specific gravity of polyethylene: 0.91 to 0.9
6, the specific gravity of polypropylene is about 0.89 to 0.91, whereas the specific gravity of PVC is about 1.16 to 1.55), usually, in this step, a wet separation method using a medium such as water, For example, the chlorine-containing plastics are separated and removed from the plastics by a gravity method or a centrifugal separation method.
Specific examples of the method for separating these chlorine-containing plastics will be described later.

In the step b ₃ , for example, the volume-based solidification of the film-based plastics is carried out by any one of the following methods
Granulation treatment is performed to obtain plastic granules. A method of obtaining plastic granules by cutting or crushing the solidified plastic material after heating and melting the film plastics to solidify, and then semi-melting by heating the film plastics. Then, the semi-molten plastic material is rapidly cooled to shrink and solidify. At this time, the method of shrink-solidifying into granules or crushing the shrink-solidified plastic material to obtain plastic granules Cutting film plastics Or it is crushed, and it is semi-moltened by frictional heat due to this cutting or crushing, and the semi-molten plastic material is rapidly cooled to shrink and solidify. Method of processing to obtain plastic granules

In one embodiment of the above method, the film-based plastics are cut or crushed by a rotary blade rotating at high speed, and the plastic material is semi-molten by frictional heat due to the cutting or crushing, and then semi-molten. A method of obtaining plastic particles by shrinking and solidifying the plastic material by rapidly cooling it with water spray or the like, at this time, shrinking and solidifying it into granules, or crushing with the rotary blade at the same time as shrinking and solidifying. A typical example of the method is a method of completely melting a film-type light plastic, extruding it into a linear shape by an extruder, and then cutting it into granules to obtain plastic granules. Other various processing methods can be adopted.

On the other hand, in the methods (1) to (3), the film plastics are not completely melted but are contracted and solidified by rapidly cooling them from a semi-molten state with water spray or the like, and at this time, they are contracted and solidified into particles. Alternatively, it is a method of obtaining granules of plastic by pulverizing a material that has been shrunk and solidified into granules. In particular, the present inventors have found that the plastic granules obtained by the method (1) to (3) are not limited to the pulverized products of the film-shaped plastics, and are compared with the pulverized products of the solid plastics. Even if it shows excellent fluidity and transportability, it also has excellent flammability, and by mixing these with pulverized solid plastics, It has been found that the transportability and flammability can be remarkably improved. Therefore, in the raw material production method of the present invention, the granular shrinkage solidification or shrinkage solidification-granulation treatment of the film-based plastics is carried out by the above methods (1) to (3). Most preferably, it is carried out to obtain plastic granules.

Further, in the above methods (1) to (5), the temperature at which the film-based plastics are semi-molten varies to some extent depending on the type and shape of the plastics.
It is about 5 ° C, and about 128 ° C in the case of medium and low density polyethylene. Therefore, the temperature for semi-melting is appropriately selected according to the type, ratio, and form of the plastic material contained in the plastics.

The plastic granules obtained as described above are obtained by shrinking and solidifying the crushed film plastics from a semi-molten state into granules or shrinking and solidifying and then pulverizing the same. Compared to the crushed solid plastics, it has a relatively porous property and a large specific surface area, and is not rounded like the crushed solid plastics, but rather rounded as a whole. It has excellent flammability and fluidity due to its shape. In this step b, the magnetic sorting may be carried out in the step b ₄ before the step b ₁ together with or instead of the magnetic sorting in the step a.

In the step c, after chlorine-containing plastics are separated and removed from the separated waste [y],
It is a process of processing into a granular or small piece of furnace raw material,
This step c is at least a step c _{1 of} separating and removing at least main chlorine-containing plastics from the waste [y].
And a step c ₂ of crushing the plastics that have passed through the step and processing into a granular or small piece of furnace raw material, and in the embodiment shown in FIG. 1, waste materials before the step c ₁ A step of separating and removing at least a major non-plastic waste from [y], that is, a step c ₃ for separating and removing iron waste from the waste by magnetic sorting and an aluminum waste (aluminum waste by aluminum sorting). Step c ₄ for separating and removing cans) is carried out. Magnetic separation of these steps c ₃ may be together with the magnetic sorting process a ₃ of the step a or carried in place of the magnetic separation step a _3.

In the separation and removal of chlorine-containing plastics carried out in the step c ₁ , usually, chlorine-containing plastics are distinguished from other plastics by an optical method,
A method of separating and removing chlorine-containing plastics is adopted. Usually, as a method for separating and removing chlorine-containing plastics from other plastics, there are the above-mentioned wet gravity method and centrifugal separation method, but solid substances contained in the waste [y] to be treated in step c. A typical example of plastic plastics is a plastic bottle, and PET (polyethylene terephthalate), which occupies most of the raw material of this plastic bottle, has a specific gravity that is almost the same as PVC or PVDC. The centrifugal separation method cannot be used. Therefore, in the separation and removal of the chlorine-containing plastics performed in step c ₁ , it is preferable to determine the chlorine-containing plastics by the optical method described above.

In the step of separating and removing chlorine-containing plastics using this method, each plastic material is irradiated with light to detect reflected light, and infrared rays or near infrared rays having a specific wavelength of the irradiation light are absorbed by the plastic material. In this case, this is determined to be chlorine-containing plastic, and the plastic material is separated and removed from the waste [y]. For such a method, a known determination method disclosed in Japanese Patent Laid-Open No. 6-210632 can be used. A specific example of the step of separating and removing the chlorine-containing plastics will be described later in detail. In the step c ₂ , the waste [y] is crushed by the crushing device and processed into a granular or small-sized furnace raw material, but this crushing process may be performed in a plurality of crushing steps.

The magnetic selection in the step c ₃ is performed by the same method as the magnetic selection in the step a described above. In addition, for the aluminum selection in step c _4, a known method capable of selectively separating non-ferrous metals, for example, a selection method using an induced eddy current method can be used. This method uses the principle that when a non-ferrous metal (conductor) is moved relatively in an inhomogeneous magnetic field, an eddy current is generated in it and an electromagnetic force is generated in the conductor due to the interaction between this current and the magnetic field. , A sorting method that automatically separates (separates and removes) non-ferrous metals such as aluminum from the waste, and a method that uses magnetic braking force, traveling magnetic field thrust or electromagnetic repulsion is known. A belt conveyor type, a vibration feeder type, a rotating cylinder type, etc. are known. By and aluminum sorting magnetic separation and step c ₄ of these steps c _3, at least a major non-plastic waste is separated and removed in waste [y].

The step d is a step in which the chlorine-containing plastics separated and removed in the steps b and c are dechlorinated and then processed into granular or small pieces of furnace raw material. At least, a process d ₁ for dechlorinating the chlorine-containing plastics sent from the process b and the process c, and a process d ₂ for processing the plastics that have undergone this process into granular or flaky furnace raw materials. Become. The dechlorination treatment in the step d ₁ is for decomposing chlorine (hydrogen chloride) from the plastic by heating the chlorine-containing plastics and thermally decomposing it, whereby a plastic substantially free of chlorine is obtained. .

When chlorine-containing plastics such as PVC are heated, chlorine (hydrogen chloride) from the plastics is generally used.
Desorption starts from around 250 ° C. and ends at approximately 350 ° C. When heated to a higher temperature, the thermal decomposition of hydrocarbons starts this time. Therefore, the above heat treatment is 250 to 35
It is preferable to carry out at a temperature of 0 ° C., preferably about 300 to 350 ° C. There is no particular limitation on the dechlorination system, and for example, a screw extrusion system by external heating, a pyrolysis furnace system, a fluidized bed system, a rotary kiln system, or the like can be used. Specific examples of these will be described later in detail.
In the step d ₂ , the dechlorinated plastics are processed into a granular or small piece of furnace raw material by a crushing device or the like. In the step d _2, since the subject to processing the film-based plastics those dechlorination,
When the proportion of the film plastics in the plastics to be treated is relatively large and the volume plastics of these are not sufficiently reduced and solidified even after the dechlorination treatment, as shown in step b ₃ of FIG. For example, the volume reduction solidification-granulation treatment of plastics can be performed by any one of the above-described methods.

The step e is a step for treating the hydrogen chloride generated by the dechlorination treatment in the step d. In this step, it is recovered as hydrochloric acid in an absorption tower or the like, or the hydrogen chloride is neutralized with an alkali. To do. Also, the process a
The waste [z] separated in step 1 is waste that does not substantially contain plastics except plastics that are unavoidably contained, and is usually metal waste such as iron (eg steel can) or glass. Consists of system waste (eg bottles). These wastes are sent to step f, for example, after the iron-based wastes are collected by magnetic sorting in step f _1, they are sent to an appropriate separation step and separated according to the material, bottle type, color, etc. , Sent to the next step for reuse, to the extent possible. The waste and plastics are conveyed between the above-mentioned steps by an appropriate means such as a conveyer, a pneumatic means, and a free fall using a cutting means. In addition,
As described above, the supply amount of film-based plastics and solid-based plastics for each step a, b, c is
Due to the nature of waste, some variations may occur over time, and only one type of plastic is supplied for a relatively short period of time, and therefore plastics that are sorted or processed. It is possible that only one of the film-based plastics or the solid-based plastics is temporarily used.

FIG. 3 is a flow chart showing an embodiment of the second raw material producing method of the present invention. According to the raw material production method shown in FIG. 3, the chlorine-containing plastics are not separated and removed in the step b of treating the waste [x] consisting of a light-weight material containing film plastics, and the waste [x] is directly removed. Characterized by chlorine treatment. This raw material production method is suitable when the proportion of chlorine-containing plastic contained in the film plastics is relatively small. The step b is a step of dechlorinating the separated waste (x) and then processing it into a granular furnace raw material, and this step b is at least a step of crushing the waste (x). and b _11, and step b ₁₂ to dechlorination the plastics passing through the process, comprising the step b ₁₃ Metropolitan for processing the plastics passing through the process to granules or small piece.

In this step b, in step b ₁₁ , the same crushing process as in step b _{1 of} FIG. 1 is performed. Further, in step b ₁₂ , dechlorination treatment is carried out in the same manner as in step d of FIG. In addition step b _13, when it is processing the dechlorination treated plastics into granules or small pieces, the processing by the nature and form of the film-based plastics after dechlorination, of simply crushing There may be a case where volume reduction solidification-granulation treatment is performed as in step b ₃ of FIG. 1. That is, when the film-based plastics is reduced in volume solidified melted or semi-melted by heating at the time of dechlorination may just step b ₁₃ in crushing, thereby granular or lump plastic Obtainable. On the other hand, if the film-based plastics have not been sufficiently reduced in volume and solidified after the dechlorination treatment, the film-based plastics may be processed by, for example, any one of the above-described methods as in step b ₃ of FIG. 1. Volume reduction of solidification-granulation processing is performed,
This gives plastic granules.

Also in this step b, the magnetic sorting may be carried out in the step b ₁₄ together with or instead of the magnetic sorting in the step a. As described above, in the raw material production method of FIG. 3, the chlorine-containing plastics are not separated and removed in step b. Therefore, in step d ₁ for dechlorinating the chlorine-containing plastics in step d, step c ₁ Only the chlorine-containing plastics that have been separated and removed in (1) will be sent. On the other hand, in the step e for recovering the hydrogen chloride generated by the dechlorination treatment as hydrochloric acid, hydrogen chloride is supplied from the dechlorination treatment step of the step d _{1 and} the dechlorination treatment step of the step b _12. . The other configuration of FIG. 3 is similar to that of FIG. 1, and therefore, the same reference numerals are given and detailed description thereof is omitted.

FIG. 4 is a flow chart showing an embodiment of the third raw material conversion method of the present invention. In the raw material production method shown in FIG. 4, the chlorine-containing plastics are not separated and removed or dechlorinated in the step b for treating the waste [x] made of a lightweight material containing the film-based plastics,
The feature is that it is granulated into granules as it is. This raw material production method is suitable when the film-based plastics contain almost no chlorine-containing plastics. The step b is at least a step b _{21 of} crushing the waste [x], and a granular furnace raw material whose volume is solidified by melting or semi-melting the plastics that have passed through this step and then solidifying. And obtaining step b ₂₂ . In this step b, step b ₂₁ is the step b _{1 of} FIG.
The same crushing process is performed. Further, in step b _12, FIG. 1
The dechlorination treatment is carried out in the same manner as in step d _{1 of} .

[0055] Also in step b _22, as in step b ₃ in FIG. 1, for example, reduced in volume and solidified film based plastics in above-method of any of - granulation processing is performed, thereby granules of plastic To get Note that this step b
But, instead of with magnetic separation in step a or the magnetic separation may be carried out magnetic separation in step b _23. As described above, in the raw material production method of FIG. 4, the chlorine-containing plastics are not separated and removed in step b. Therefore, in step d ₁ for dechlorinating the chlorine-containing plastics in step d, step c ₁ Only the chlorine-containing plastics that have been separated and removed in (1) will be sent. Since the other configuration of FIG. 4 is the same as that of FIG. 1, the same reference numerals are given and detailed description thereof is omitted.

FIG. 5 is a flow chart showing an embodiment of the fourth raw material production method of the present invention. In the process c shown in FIG. 5, the chlorine-containing plastics are not separated and removed in the step c for treating the waste [y], which is a medium-weight material containing solid plastics, and is directly converted into granular materials. It is characterized by processing. This raw material production method is suitable when solid plastics contain almost no chlorine-containing plastics such as PVC bottles. In the step c, at least a step c ₃₁ of crushing the waste [y] mainly composed of solid plastics and processing it into a granular or small piece-shaped furnace raw material is carried out, and as in FIG. Before the step c ₃₁ , a step of separating and removing at least a main non-plastic waste from the waste [y], that is, a step c ₃₂ for separating and removing iron-based waste by magnetic sorting and an aluminum-based by aluminum sorting The step c ₃₃ for separating and removing the waste (aluminum can etc.) is carried out. Of these, the magnetic selection in step c ₃₂ can be performed together with the magnetic selection in step a or instead of the magnetic selection.

In step c ₃₁ , the same crushing process as in step c _{2 of} FIG. 1 is performed. Separating and removing chlorine-containing plastics in step c is the raw material of the method of FIG. 5 as described above is not performed, therefore, the chlorine-containing plastics in step d in step d ₁ for dechlorination treatment, step b ₂ Only the chlorine-containing plastics that have been separated and removed in (1) will be sent. The other configuration of FIG. 5 is similar to that of FIG. 1, and therefore, the same reference numerals are given and detailed description thereof is omitted.

FIG. 6 is a flow chart showing an embodiment of the fifth raw material conversion method of the present invention. In the raw material production method shown in FIG. 6, in the step b of treating the waste [x] consisting of a lightweight material containing film-based plastics, the waste is directly dechlorinated without separating and removing the chlorine-containing plastics. Also, in the step c for treating the waste [y] consisting of medium-weight materials containing solid plastics, the chlorine-containing plastics are not separated and removed, and are directly used as a granular or small piece of furnace raw material. It is characterized by processing. According to this raw material production method, the proportion of chlorine-containing plastics contained in the film-based plastics is relatively small, and the P-based plastics
This method is suitable when chlorine-containing plastics such as VC bottles are hardly contained.

The step b is the same as the configuration of FIG. 3, and at least the step b _{11 of} crushing the waste [x] and the step b of dechlorinating the plastics that have passed through the step b are performed. ₁₂ and step b _{13 of} processing the plastics that have undergone the step into a granular or small piece shape. Further, the step c is the same as the configuration of FIG.
The crushing process waste [y] containing at least solid-based plastics, it is carried out a step c ₃₁ being processed into granules or small pieces of the furnace material and iron by magnetic separation before the step c ₃₁ Aluminum waste (aluminum can, etc.) by the process c ₃₂ for separating and removing waste and aluminum sorting
The step c ₃₃ for separating and removing is carried out. Of these, the magnetic selection in step c ₃₂ can be performed together with the magnetic selection in step a or instead of the magnetic selection.

In the raw material producing method of FIG. 6, since chlorine-containing plastics are not separated and removed in either step b or step c, a step for dechlorinating chlorine-containing plastics as shown in FIG. d is not performed. Further, the hydrogen chloride is sent only from the step b ₁₂ to the step e for treating the hydrogen chloride generated by the dechlorination treatment. Since the other configuration of FIG. 6 is similar to that of FIGS. 1, 3 and 5,
The same reference numerals are given and detailed description is omitted.

FIG. 7 is a flow chart showing an embodiment of the sixth raw material conversion method of the present invention. The raw material production method shown in FIG. 7 is applied to chlorine-containing plastics for both waste [x] consisting of light-weight materials containing film plastics and waste [y] consisting of medium-weight materials containing solid plastics. It is used as a raw material as it is without separation and removal of chlorine and dechlorination, and is a suitable method when chlorine-containing plastics are scarcely contained in both film plastics and solid plastics. is there. Step b is the same as FIG. 4, and this step b is reduced by at least step b _{21 of} crushing the waste [x], and melting or semi-melting the plastics after this step and then solidifying. consists step b ₂₂ Metropolitan obtain containers solidified particulate furnace material.

In this step b, in step b ₂₁ , the same crushing process as in step b _{1 of} FIG. 1 is performed. Further, in step b _22, in the same manner as in Step b ₃ in FIG. 1, for example above any of the methods in volume reduction solidification of the film-based plastics of ~ -
A granulation process is performed to obtain plastic granules. Even this step b, together with the magnetic separation of step a or instead of the magnetic separation may be carried out magnetic separation in step b _23.

Further, the step c is the same as the constitution of FIG. 5, and in this step c, at least the waste [y] containing solid plastics is crushed to form a granular or small piece of furnace raw material. A processing step c ₃₁ is performed, and before the step c ₃₁ , a step c ₃₂ for separating and removing iron-based waste by magnetic sorting and an aluminum-based waste (aluminum can, etc.) for separating and sorting by aluminum sorting are performed. step c ₃₃ for is performed. Of these, the magnetic selection in step c ₃₂ can be performed together with the magnetic selection in step a or instead of the magnetic selection. In the raw material production method of FIG. 7, since the chlorine-containing plastics are not separated and removed and the dechlorination treatment is not performed in any of the steps, the step d and the dechlorination treatment for chlorine-containing plastics as shown in FIG. 1 are performed. Step e for treating the hydrogen chloride produced by the chlorine treatment is not carried out. The other configuration of FIG. 7 is similar to that of FIG. 1, FIG. 4 and FIG.

Next, the raw material preparation equipment of the present invention suitable for carrying out the above-mentioned raw material preparation method will be described. FIG. 8 shows an embodiment of the raw material production equipment of the present invention.
Sorting facility A for separating plastic-based waste into film-based plastics, solid-based plastics and heavy non-plastic-based waste, and a processing line for processing the separated film-based plastics B, a treatment line C for treating the separated solid plastics, and the treatment line B
And a treatment line D for treating the chlorine-containing plastics separated and removed in the treatment line C, and a hydrogen chloride treatment facility E for treating the hydrogen chloride produced in the treatment line D.

In the sorting facility A, the plastic waste is classified into a waste [x] consisting of a light-weight material containing film plastics and a waste [y] consisting of a medium-weight material containing solid plastics. , A sorting machine 1 for automatically sorting into a waste [z] consisting of a heavy material containing substantially no plastics. Also, on the inlet side of this sorter 1,
A bag breaking machine 2 for breaking a bag body (collection bag) containing plastic waste, and an iron-based waste by magnetic separation from the waste taken out from the bag body by the bag breaking machine 2. A magnetic separator 3a for separating and removing the magnetic field is provided.

The system of the sorting machine 1 is not particularly limited, but as described above, there are a wind power sorting system and a swing sorting system as typical systems. FIG. 9 shows an example of a sorting machine 1 utilizing a wind power sorting system, in which waste is loaded into the apparatus by a loading means 16 (transport conveyor etc.),
Utilizing the fact that air is blown from the air injection nozzle 17 to the waste just after the charging, and the flight distance of the waste flying along with the air flow varies depending on the weight, weight / volume ratio, and weight / area ratio of the waste. Then, the waste is separated. That is, the waste [x], which is a lightweight material, the waste [y], which is a medium weight material, and the waste [z], which is a heavy material, which have different flight distances due to airflow (or waste [x], which is a lightweight material). ] And a waste [y + z] which is a medium weight / heavy weight) respectively, and dedicated recovery means 18a, 18b, 18c are provided, and these are separately collected. Various devices other than the structure shown in FIG. 9 are known for performing the wind power selection of wastes based on the above principle, and any of these devices can be used in the present invention.

FIG. 10 shows an example of a sorting machine 1 utilizing the swing sorting system. This sorting machine is provided with a repulsion plate 19 which is installed so as to be inclined in the longitudinal direction and which can swing. The waste is sorted by utilizing the weight difference of the waste loaded on the repulsion plate 19. In this sorter 1, the repulsion plate 19 is supported by rotating shafts 20a and 20b (for example, crank shafts) capable of eccentric rotation (the rotating shafts 20a and 2).
0b is supported by being slidably in contact with the arcuate surface of the receiving member on the lower surface of the repulsion plate), the rocking is repeated in the inclination direction and the vertical direction (thickness direction), and discarded on the repulsion plate 19. Waste is separated by charging the waste.
For example, the waste [y + z], which is a medium weight or a heavy object, falls downward along the slanted repulsion plate 19 and is repulsed.
Of the waste [x], which is a lightweight material, gradually moves upward in the inclined repulsion plate 19,
It is discharged from the other end of the repulsion plate 19. Further, based on the same principle, for example, the waste [x + y] which is a light / medium weight product is separated from the waste [z] which is a heavy product, and the waste [y] which is a middle heavy product and a heavy product. Separation from waste [z] is also possible. Further, in the sorting machine 1 of FIG. 10, a large number of small through holes 21 (sieving holes) are formed in the repulsion plate 19, and small-diameter substances (such as earth and sand) contained in the waste fall through the through small holes 21. Removed from waste.

Further, FIG. 11 shows an apparatus which is capable of separating a light weight, a medium weight and a heavy weight by combining the air sorter with the sorting machine shown in FIG. This sorter 1
Then, by blowing air from below onto the waste material on the repulsion plate 19, only the waste material [x], which is a lightweight material, is blown off and collected by a dedicated collecting means, while the waste material [z], which is a heavy material, is collected. Is dropped in the downward direction along the inclined repulsion plate 19 and discharged from one end of the repulsion plate 19, and the waste [y], which is a medium weight material, is moved upward in the inclined repulsion plate 19. Gradually move the repulsion plate 19
Is discharged from the other end side of. In this sorter 1, a large number of small through holes 21 formed in the repulsion plate 19 are used, and air is blown from the lower side of the repulsion plate 19 through the small through holes 21. The air may be blown from below the inclined repulsion plate 19 along the inclination direction of the repulsion plate.

The processing line B is a processing line for separating and removing at least main chlorine-containing plastics from the separated waste [x], and then processing into a granular furnace raw material. x], a crushing device 4, a separating / removing device 5 for separating and removing chlorine-containing plastics from the plastics crushed by the crushing device 4, and melting the plastics that have passed through the separating / removing device 5. Alternatively, it has a granular solidifying device 6 for processing into a granular furnace raw material whose volume is solidified by semi-melting and then solidifying. Further, in the processing line B, a magnetic separator 3b can be provided in front of the crushing device 4 together with or in place of the magnetic separator 3a of the sorting device A. The crushing device 4 may be composed of a plurality of crushing devices connected in series, and the crushing process may be performed in a plurality of stages. Separation and removal device 5 for chlorine-containing plastics
It is preferable to use a gravity system or a centrifugal system that utilizes the difference in specific gravity between chlorine-containing plastics and other plastics.

FIG. 12 shows an example of the configuration of the separation / removal device 5 by the gravity method. Plastics are charged in a separation tank 22 containing water, and PVC or PV which settles in the tank.
It is separated into chlorine-containing plastics such as DC and other floating plastics. The chlorine-containing plastics that have been separated by settling are discharged to the outside of the tank by an appropriate discharging means, separated from water through the screen 23a, and then discharged to the outside of the system. On the other hand, plastics other than chlorine-containing plastics floating in the tank are discharged outside the tank by an appropriate discharging means, separated from water through the screen 23b, dried in a dryer 24, and sent to the next step. Be done. Note that FIG.
In 2, the numeral 25 is a drainage tank for discharging the water separated by the screens 23a and 23b.

FIG. 13 shows an example of the structure of the separation / removal device 5 based on the centrifugal separation method. This device includes a tubular or spindle-shaped main body 26 with a hollow inside, and a main body 26.
It is composed of an inner cylinder 27 with a screw that is rotatably arranged in the inner longitudinal direction, a motor 28 for rotating the inner cylinder, and the like. In this apparatus, a mixture of plastics and a medium such as water is supplied from one end of the inner cylinder 27 that rotates at a high speed to the inside thereof. The mixture is discharged into the internal space of the main body 26 by the action of centrifugal force from an opening 29 provided in the substantially central portion of the inner cylindrical body 27 in the longitudinal direction, and a heavy component having a larger specific gravity than the specific gravity of the medium (chlorine-containing Plastics) and light components with a low specific gravity (plastics other than chlorine-containing plastics). In other words, due to the centrifugal force, only the heavy components of the plastics are
As a result of being collected on the inner wall surface side of the
6 is separated in the radial direction.

Here, the inner cylinder 27 is provided with a screw 30a for conveying light components in a longitudinal half with the opening 29 as a boundary, and a screw 30b for conveying heavy components in another longitudinal half. Has been. These screws 30a,
In 30b, the spiral directions of the screws are opposite to each other,
When the inner cylinder 27 rotates, the screws 30a, 3
0b conveys plastics toward the end of the main body on each side. That is, light plastics (plastics other than chlorine-containing plastics) are conveyed to one end of the main body 26 by the screw 30a having relatively short blades, and are discharged from the discharge port 31a. on the other hand,
The heavy plastics (chlorine-containing plastics) collected on the inner wall surface side of the main body 26 are removed by the screw 30b whose blades extend to the vicinity of the inner wall surface of the main body 26.
Is conveyed to the other end of the sheet and is discharged from the discharge port 31b. On the other hand, a medium such as water is discharged to the outside of the apparatus through a discharge port 32 provided in the substantially central portion of the main body 26. According to such a device, the charged plastics are separated into plastics other than the chlorine-containing plastics which are light components and chlorine-containing plastics which are heavy components, and each has very low water content. It can be discharged outside the device in this state.

The granular solidification device 6 is preferably one that performs volume reduction solidification-granulation treatment of plastics by any one of the above-mentioned methods. Among these, a typical example of the granular solidification device 6 for carrying out the method is that plastics are completely melted, extruded into a linear shape by an extruder, and then cut into granules. Although it is an apparatus for obtaining an object, various processing apparatuses other than this can be used.

FIG. 14 shows an example of a structure for performing the granular shrinkage solidification or the continuous treatment of shrinkage solidification-granulation by the above-mentioned method. The plastics charged in the particulate solidification device 6 is crushed by the crushing device 33. After being crushed by, it is loaded into the volume reduction and solidification device 34. In this volume-reducing and solidifying device 34, plastics are continuously conveyed through a heating chamber 35 and a cooling chamber 36 subsequent thereto by a conveying device 37 (conveying belt or the like), and the heating chamber 35
After being semi-melted by being heated (gas heating, gas indirect heating, electric heating, or the like) in (1), it is rapidly cooled by water spray or the like in the cooling chamber 36 to shrink and solidify. At this time, it is possible to shrink and solidify the plastics into granules by appropriately selecting the crushing form of the plastics, the charging state into the heating chamber, etc. Therefore, according to this method, the granules can be obtained without shrinking and solidifying. .

On the other hand, in the method in which a part or all of the plastics is not shrunk and solidified into granules, the shrinked and solidified plastics are loaded into the crushing device 38 from the volume reduction solidifying device 34, and crushed into granules by the crushing device 38. By doing so, a granular material is obtained. The plastic granules obtained as described above are solid-based plastics because the crushed film-based plastics are shrink-solidified from the semi-molten state into granules or shrink-solidified and then pulverized. It has a relatively porous property and a large specific surface area compared to crushed plastics, and it has a rounded shape as a whole rather than the angular shape like crushed solid plastics. Therefore, it has excellent flammability and fluidity.

FIG. 15 schematically shows the structure of the apparatus according to the above system, and FIG. 16 schematically shows the principle of the particle shrinkage solidification or the shrinkage solidification-granulation processing by this apparatus. The granular solidification device 6 includes a tank 39 in which plastics are charged, one or more rotary blades 40 arranged at the bottom of the tank 39, and a cooling fluid (liquid such as water) in the tank 39. Alternatively, a quenching means 41 for blowing or spraying (gas) is provided. According to the granular solidification device 6 as described above, the plastics loaded in the tank 39 are cut or crushed by the rotary blade 40 rotating at a high speed, and the plastics are semi-melted by the frictional heat caused by the cutting or crushing. Then, the semi-molten plastics are shrunk into individual pieces by rapidly cooling them from the above temperature by spraying water from a quenching means 41, and at this time, they are shrunk and solidified into particles or at the same time with the above-mentioned rotary blade 40. Is pulverized to obtain a plastic granular material.

The plastic granules obtained as described above are also obtained by shrinking and solidifying the crushed film plastics from the semi-molten state into granules or shrinking and solidifying them, and then pulverizing them. Compared to the crushed solid plastics, it has a relatively porous property and a large specific surface area, and is not rounded like the crushed solid plastics, but rather rounded as a whole. It has excellent flammability and fluidity due to its shape.

This apparatus is a batch system for crushing (or cutting) of plastics, semi-melting treatment, and crushing treatment after shrinkage solidification (however, crushing treatment is not required when shrinking and solidifying into granules by rapid cooling). This is done by the rotary blade 40 that rotates at high speed, and "crushing (or cutting)"
→ Semi-melting → Granular shrinkage solidification by quenching or "Crushing (or cutting) → Semi-melting → Shrinkage solidification by rapid cooling → Pulverization"
Moreover, the plastics are crushed (cut) by the rotary blade 40.
-Semi-molten during high-speed stirring, and from such a state, rapid quenching treatment is performed, so that more preferable granules in terms of specific surface area and grain shape can be obtained. Further, since the crushing (or cutting) treatment, the semi-melting treatment, and the crushing treatment after shrinkage and solidification are performed only by the action of the rotary blade 40, it is advantageous in terms of equipment cost and operation cost.

Also in the above method, the plastics can be contracted and solidified in a granular form by appropriately selecting the crushing form of the plastics, the charging state with respect to the rotary blade, etc. Granules of plastic can be obtained as shrink-solidified without being crushed by a rotary blade after shrink-solidification. On the other hand, when some or all of the plastics are not shrunk and solidified into granules, the granules of the plastics are obtained by the pulverization treatment with the rotary blade as described above.

The treatment line C is a treatment line for separating and removing at least main chlorine-containing plastics from the separated waste [y], and then processing into a granular or small piece of furnace raw material. , A separation / removal device 7 for separating and removing chlorine-containing plastics from the waste [y], and the plastics separated by this separation / removal device 7 are crushed and processed into granular or small pieces of furnace raw material. And a crushing device 8 for Also, the separation and removal device 7
In front of the above, an aluminum sorter 10 for separating and removing aluminum-based waste (aluminum can etc.) by aluminum sorting is provided. Further, in the processing line C, a magnetic separator 3c can be provided in front of the separation / removal device 7 together with or instead of the magnetic separator 3a of the sorting device A.

The chlorine-containing plastics separating / removing device 7 is disclosed in Japanese Patent Application Laid-Open No. 6-2 for the reasons described above.
It is preferable to use an apparatus capable of discriminating chlorine-containing plastics by an optical method as disclosed in Japanese Patent No. 10632 or the like. FIG. 17 shows an example of the configuration of this separation / removal device 7. In this device, each plastic material is irradiated with light to detect reflected light, and infrared rays or near infrared rays of a specific wavelength of the irradiation light are absorbed by the plastic. When the plastic material is included, the plastic material is determined to be chlorine-containing plastics, and the plastic material is separated and removed from the waste [y]. The plastic materials are sequentially aligned and transported by the aligning / transporting device 42, light is emitted from the projector 43 to the plastic materials, and the reflected light is detected by the light receiver 44. The information processing unit 45 measures whether or not the infrared ray or the near infrared ray having a specific wavelength of the irradiation light is absorbed by the plastic based on the detected reflected light, and when the specific wavelength is absorbed by the plastic, It is determined that the plastic material is chlorine-containing plastic. The plastics that have undergone such a determination are sequentially loaded into the sorting unit 46, and are sorted into chlorine-containing plastics and other plastics based on the determination result.

The crushing device 8 may be composed of a plurality of crushing devices connected in series, and the crushing process may be performed in a plurality of stages. The aluminum sorter 10 separates and removes non-ferrous metals such as aluminum on the basis of the above-described principle, and a known device such as a slide type, a belt conveyor type, a vibration feeder type, and a rotating cylinder type can be used. it can. The processing line D is a processing line for dechlorinating the chlorine-containing plastics separated and removed in the processing line B and the processing line C, and then processing the granular plastic raw material. Chlorine removing device 11 for dechlorinating the chlorine-containing plastics separated and removed in the processing line C, and a processing device for processing the plastics that have passed through the chlorine removing device into granular or small pieces of furnace raw material 12
have.

The chlorine removing device 11 is for removing chlorine (hydrogen chloride) from the plastics by heating the chlorine-containing plastics and thermally decomposing it, but there is no particular restriction on the type, and for example, by external heating. Devices such as a screw extrusion system, a pyrolysis furnace system, a fluidized bed system, and a rotary kiln system can be used. FIG. 18 shows an example of the chlorine removal device 11 of the thermal decomposition furnace type, 47 is a main body of the thermal decomposition furnace, 48 is a screw feeder for supplying plastics to this thermal decomposition furnace, and 49 is agitating the resin material in the furnace. A stirring blade for removing the dechlorinated plastics out of the furnace, 50a a shut-off valve for the degassed plastics, and 51 an exhaust for discharging desorbed hydrogen chloride (HCl) out of the furnace. It is the exit. The screw feeder 48 and the stirring blade 49 are driven by motors 53 and 54, respectively.

In the chlorine removing device 11, chlorine-containing plastics are supplied into the furnace through the resin material supply port 52 and the screw feeder 48, and the chlorine-containing plastics are stirred by the stirring blade 49 rotated by the motor 54. It is heated to about 300 to 350 ° C. By the thermal decomposition by this heating, the chlorine content in the plastic is desorbed in the form of hydrogen chloride, and this hydrogen chloride is discharged from the discharge port 51 to the outside of the furnace. On the other hand, the plastic material that has been dechlorinated (residue of the plastic from which chlorine has been desorbed) is extracted from the extraction port 50 to the outside of the furnace. The heating in the furnace may be either an external heating method such as gas heating or electric heating, or a gas heating method of directly supplying gas into the furnace.

Further, FIG. 19 shows an example of the screw extrusion type chlorine removing device 11, 55 is a horizontal type screw feeder, 56 is a supply port for supplying plastics to one end side of this screw feeder,
Reference numeral 57 denotes an outlet for ejecting the treated plastic material discharged from the other end of the screw feeder, 5
8 is a hydrogen chloride outlet, 59 is a screw feeder 1
3 is a heating device that surrounds 3. The screw feeder 55 is driven by a motor 60. In the chlorine removing device 11, chlorine-containing plastics supplied from the supply port 56 to one end side of the screw feeder 55 are heated by the heating device 59 while being transferred by the screw feeder 55, and the thermal decomposition of the resin by the heating causes the inside of the plastics to disappear. Of chlorine is desorbed in the form of hydrogen chloride, and this hydrogen chloride is discharged from the discharge port 58. Further, the dechlorination treatment is completed by the heating during the transfer, and the plastic material discharged from the other end of the screw feeder 55 (resin residue from which chlorine is desorbed) is extracted from the extraction port 57.

FIG. 20 shows an example of the structure of the twin screw extrusion type chlorine removing device 11, in which 61 is a horizontal type twin screw feeder, and 62a and 62b are chlorine-containing one end sides of this screw feeder. It is a supply port for supplying plastics, and in this configuration example, a supply screw feeder 63 is attached to one supply port 62a. Further, 64 is a screw feeder 6
An extraction port for extracting the treated plastic material discharged from the other end side of 1, the heat medium for heating the plastic in the screw feeder 61 (usually, heats the liquefied plastic liquefied by the device). A heat medium supply port for supplying (supply as a medium), and 66 is a discharge port of hydrogen chloride gas. The screw feeder 61 is driven by a motor 67, and the supply screw feeder 63 is driven by a motor 68.

In this chlorine removing device 11, the supply port 62a
(And the screw feeder 63), the chlorine-containing plastics supplied to one end side of the screw feeder 61 from one or both of the supply port 62b, while being transferred by the screw feeder 61, from the heat medium supply port 65 to the screw feeder 61. It is heated to about 250 to 350 ° C. by the heat medium supplied therein, and the chlorine content in the chlorine-containing plastics is desorbed in the form of hydrogen chloride gas by the thermal decomposition by this heating, and this hydrogen chloride gas is discharged through the outlet 66.
Emitted from. In addition, the dechlorination treatment is completed by the heating during the transfer, and the plastic material discharged from the other end of the screw feeder 61 (plastic residue from which chlorine is desorbed) is extracted from the extraction port 64.

21 and 22 show an example of the construction of a rotary kiln type chlorine removing device 11, in which 69 is a rotary kiln main body, and this rotary kiln main body 69 comprises a refractory material 70 and a steel shell 71, and the inside is A passage 72 is formed for dechlorination while transferring chlorine-containing plastics. This rotary kiln body 69
The chlorine-containing plastics and the heat medium are supplied to the passage 72 from one end side thereof, and the heating gas is supplied as a heat source. This heating gas heats the entire kiln as well as the chlorine-containing plastics and the heat medium.
The chlorine-containing plastics are heated while being mixed with the heat medium by the rotation of the kiln, and this heating causes a reaction in which the chlorine content in the chlorine-containing plastics is desorbed as hydrogen chloride, and hydrogen chloride gas is generated. The heating gas flowing through the passage 72 and the hydrogen chloride gas desorbed from the chlorine-containing plastics are discharged from the other end of the passage 72, and the hydrogen chloride gas in this exhaust gas is recovered by a hydrogen chloride absorption tower or the like. Also,
The plastic material that has undergone dechlorination treatment (plastic residue from which chlorine has been desorbed) is discharged outside the kiln together with the heat medium.

In the dechlorination process using such a rotary kiln, one or more powders which can be used as an iron source reducing agent for the furnace, a fuel or an auxiliary raw material as a heat medium supplied into the passage 72 together with the chlorine-containing plastics. It is preferable to use granules. As a result, the dechlorinated plastic material can be used as it is as a furnace raw material without being separated from the heat medium. Examples of the powder and granules suitable for such a heat medium include powder coke, powder ore, and sintered powder, and it is preferable to use at least one of these as the heat medium. Further, in order to prevent the heat medium from segregating in the passage 72 and improve the heating efficiency, it is preferable that the particle diameter and the specific gravity of the heat medium are as close as possible to the resin material. Most preferably, powder coke is used.

23 to 25, 26 and 27, and FIG.
8 is a rotary kiln type chlorine removal device 11
Other examples of the configuration of these, these are composed of a rotary kiln body from an outer pipe and an inner pipe arranged inside,
While making the inner pipe a passage for the plastic to be treated,
It has a common feature that the space between the inner pipe and the outer pipe is a passage for the heating gas, and due to such features, the generated hydrogen chloride gas can be taken out without mixing with the heating gas. Therefore, the equipment cost and the processing cost required for processing the exhaust gas can be significantly reduced as compared with the apparatus shown in FIG. In addition, since the entire inner tube that generates hydrogen chloride gas is heated by the heating gas, the temperature of the entire inner tube is maintained at a temperature range higher than the temperature range of 150 ° C or lower at which hydrogen chloride has strong corrosiveness. Therefore, it is possible to appropriately prevent the corrosion of the device, particularly the inner pipe, by the generated hydrogen chloride gas.

First, the chlorine removing apparatus 1 shown in FIGS.
In FIG. 1, 73 is a rotary kiln body, 74 is an outer tube constituting the same, and 75 is an inner tube.
Reference numeral 5 is arranged coaxially with the outer tube 74 in the inner longitudinal direction of the outer tube 74. The inside of the inner pipe 75 constitutes a passage 76 (processing space) for the plastic material to be treated, and the outer pipe 7
The space between 4 and the inner pipe 75 constitutes a passage 77 for the heating gas. On one end side of the rotary kiln body 73,
A screw feeder 78 having a supply port 780 as a material supply device and a hot air conduit 79 for supplying a heating gas (hot air) are arranged. The screw feeder 78 is provided on one end side of the inner pipe 75 and the hot air conduit 79. Is the outer tube 74
Are connected to one end side of each. Also, the outer tube 7
At the other end side of 4, there is a discharge port 80 for heating gas, and an inner pipe 75
On the other end side, a hydrogen chloride gas outlet 81 and a treated plastic material outlet 82 are provided. In the other figures, 83 is a drive motor for the screw feeder 78.

Further, FIGS. 26 and 27 show other structural examples in which the structure of the inner pipe and the like is different, whereas FIGS. 23 to 25 have a structure in which a single inner pipe is arranged inside the outer pipe. The outer tube 74 is provided with a plurality of inner tubes 75a to 75c. The number of inner tubes 75 arranged in the outer tube 74 is arbitrary. In such a structure, since a plurality of inner pipes are provided, the heat transfer area is increased accordingly, and therefore, there is an advantage that heat can be efficiently transferred from the heating gas flowing in the passage 77 into the inner pipe, and the treatment is performed. Since the mixing ratio and type of the plastic material and heat medium to be changed can be changed for each inner tube, for example, for a plastic material with a large particle size and poor treatment efficiency, increase the mixing ratio of the heat medium, while It is also possible to operate a plastic material having a small heat treatment rate and a high treatment efficiency by reducing the compounding ratio of the heat medium and supplying each to a separate inner tube for treatment.

FIG. 28 shows another configuration example, in which the inner pipe 7
The gas conduit 84 is disposed inside the No. 5 so that the heating efficiency of the plastic material to be treated can be further improved. It should be noted that such a gas conduit can also be arranged in the inner pipes 75a to 75c of the apparatus shown in FIGS. 23 to 25, 26 and 2 described above.
7, in each chlorine removal apparatus 11 of FIG. 28, dechlorination of chlorine-containing plastics can be performed without any trouble as long as the inner tubes 75, 75a to 75c rotate substantially in the circumferential direction. . Therefore, in each of the above devices,
The entire rotary kiln body 73 including the outer pipe 74 may be configured to be rotatable in the circumferential direction, but the inner pipes 75, 7
Only 5a to 75c may be rotatable in the circumferential direction. Further, in the case of the device of FIGS. 26 and 27, the inner pipes 75a to 75c are integrally rotated (thus, in this case, as in the case of rotating the rotary kiln body 73, the individual inner pipes are eccentrically rotated). Alternatively, the inner tubes 75a to 75c may be individually rotated.

Each chlorine removing device 11 shown in FIGS. 23 to 28
Then, chlorine-containing plastics and heat transfer media (powder granules)
The heating gas and the heating gas are supplied to the passage 76 and the passage 77 from one end side of the rotary kiln body 73, respectively. For example, in the chlorine removing device 11 of FIGS. 23 to 25, the screw feeder 78, which is a supply device, causes the chlorine-containing plastics and the heat medium (powder particles) to move to the rotary kiln body 7.
3 is supplied to the passage 76 from one end side, and the heating gas is supplied to the passage 77 from one end side of the rotary kiln body 73 through the hot air duct 79. The heating gas supplied to the passage 77 heats the entire inner tubes 75, 75a to 75c,
The chlorine-containing plastics and the heat medium are heated through the tube wall. The heating gas flowing through the passage 77 is on the other end side of the rotary kiln body 73 (in the case of FIG. 23, the discharge port 80).
Emitted from.

On the other hand, the chlorine-containing plastics supplied to the passages 76 inside the inner pipes 75, 75a to 75c are
It is mixed with the heat medium by the rotation of 5,75a to 75c,
In addition, it is heated while being transferred through the passage 76, and the chlorine content in the chlorine-containing plastics is desorbed as hydrogen chloride by this heating, and hydrogen chloride gas is generated. The plastic material thus dechlorinated (plastic residue from which chlorine has been desorbed) is discharged from the other end of the rotary kiln body 73 (the discharge port 82 in FIG. 23) together with the heat medium, and at the same time chlorided. Hydrogen gas is also discharged from the other end side (discharge port 81 in the case of FIG. 23). Therefore, the hydrogen chloride gas generated by heating the chlorine-containing plastics is recovered without being mixed with the heating gas. In order to smoothly move the chlorine-containing plastics and the heat medium in the passage 76, a small amount of carrier gas (air or the like) can be ventilated in the passage 76.

Further, in the above apparatus, the heating gas flows outside the inner pipes 75, 75a to 75c in which hydrogen chloride is generated, so that the temperature of the entire inner pipe is about 250 to 350 ° C. as described above. There is no temperature region below 150 ° C. where the corrosive action of hydrogen chloride is large, at the portion where hydrogen gas contacts. Therefore, the corrosion of the device due to the hydrogen chloride gas, in particular, the corrosion of each part of the inner pipe is appropriately prevented.
As the heat medium (powder particles) supplied together with the plastic material into the passage 76, the iron source reducing agent of the furnace, the fuel, and the powder particles (e.g., coke powder, which can be used as an auxiliary material) for the reasons described above. It is preferable to use one or more of powdered ore, sintered powder, etc.), and among these, it is most preferable to use powdered coke.

The chlorine removing device 11 used in the present invention is not limited to the above-mentioned embodiment, and any system and structure can be adopted. Further, the chlorine removing device 11 may be provided with a cooling mechanism for cooling the plastic material which has been subjected to the dechlorination treatment. The processing device 12 is usually composed of a crushing device or the like,
The device configuration is determined according to the properties and form of the plastic after dechlorination. That is, since the chlorine-containing plastics that are dechlorinated in the treatment line D include film-based plastics, the proportion of the film-based plastic in the chlorine-containing plastics is high, and these are the dechlorination processing steps. When the volume is not sufficiently reduced and solidified even after the passage, the volume reduction and solidification apparatus 6 as used in the processing line B can be used as a processing apparatus. The processing device 12 may be provided integrally with the chlorine removing device 11, and for example, may be configured so that the molten plastics immediately after being dechlorinated can be crushed while being cooled by water cooling or the like.

The hydrogen chloride treatment facility E is a facility for treating hydrogen chloride generated by the dechlorination treatment of the treatment line D, and this facility uses an absorption tower or the like to recover hydrogen chloride as hydrochloric acid. It can be configured with a hydrochloric acid recovery facility, a treatment facility for neutralizing hydrogen chloride with an alkali, or the like, and any known facility can be used. The treatment line F is for treating the waste [z] that does not substantially contain plastics, and normally the magnetic separator 9 and the non-plastic waste can be separated according to their materials and the like. Is equipped with. The sorting equipment A described above,
The treatment line B, the treatment line C, the treatment line D, and the hydrochloric acid recovery facility E are the facility configurations for carrying out the raw material production method of FIG. 1 described above, but in the raw material production facility shown in FIG. Also, it has an equipment configuration for carrying out the raw material production method shown in FIGS.

First, a treatment line B ', which is different from the treatment line B, is provided in order to enable the dechlorination treatment of the entire film plastics as they are without passing through the separation and removal step of the chlorine-containing plastics. ing. The processing line B ′ receives the film plastics that have passed through the crushing device 4 of the processing line B, and performs a chlorine removal device 13 for dechlorinating the film plastics, and the plastics that have passed through the chlorine removal device 13 are granulated or It has a processing device 14 for processing into a small piece of furnace raw material. As the chlorine removing device 13, various types of devices described with respect to the chlorine removing device 11 of the processing line D can be used.

For the above-mentioned processing device 14, the processing device 14 depends on the properties and form of the plastic after the dechlorination treatment (in particular, whether or not the film-shaped plastics are reduced in volume and solidified). An ordinary crushing device or a volume reducing and solidifying device as used in the processing line B is used. Further, in the processing line B, a transport path 15a for enabling the plastics that have passed through the crushing device 4 to be supplied to the granular solidification device 6 without passing through the separation and removal device 5.
(Conveying means) is provided, and in the processing line C, a conveying path 15b for enabling the waste [y] received in the line to be supplied to the crushing device 8 without passing through the separation and removal device 7. (Transportation means) is provided. It should be noted that between the above-mentioned equipment and the processing line, or between the respective devices in each processing line, the transportation of wastes and plastics can be carried out by a conveyor, an air feeding means, a free fall using a cutting means, or the like. Done by means.

As described above, in the raw material producing method of the present invention, the granular plastics obtained by subjecting the film-based plastics to the particle shrinkage solidification or the shrinkage solidification-granulation by the above-mentioned methods (hereinafter, referred to as "granular plastic [a ] ”) Has a relatively porous property, a large specific surface area, and has a rounded shape as a whole, and therefore exhibits excellent flammability and fluidity. By mixing it with a granular or small piece of crushed material (hereinafter referred to as "granular plastic [b]"), the combustibility, fluidity and transportability of the entire granular plastic supplied to the furnace are effectively increased. be able to. That is, regarding flammability, when a mixture of the granular plastic [a] and the granular plastic [b] is blown into the furnace, the granular plastic [a] having good flammability is rapidly burned and the granular plastic [b] is burned. Is quickly ignited, which significantly increases the combustibility of the entire granular plastic blown into the furnace.

Further, regarding the fluidity and the transportability, the granular plastic [a] having a rounded shape and excellent in the fluidity and the transportability is contained in the granular plastic. Has the function of improving lubricity, and as a result, the fluidity and transportability of the entire granular plastic are greatly improved. In order to obtain the above-mentioned effect, it is preferable that the weight ratio of the granular plastics [a] in all the granular plastics is 10% or more. FIG. 29 shows a particle size of 6 mm obtained by crushing a granular plastic [a] having a particle size of 6 mm or less obtained by shrink-solidifying-granulating the film-like plastic and the solid plastic by the above method. The following granular plastics [b] (all granular plastics have an angle of repose of 40 °) are mixed at various ratios, and this mixture is blown into the tuyere of the blast furnace and blown into the furnace. In this case, the relationship between the weight ratio of the granular plastic [a], the transportability of the mixture (frequency of occurrence of supply trouble), and the coke substitution rate with plastic was investigated. The frequency of occurrence of supply trouble and the coke replacement rate are defined as follows.

(A) Frequency of supply trouble occurrence Particle size 6 m obtained by crushing solid plastics
The supply trouble occurrence frequency index when only the granular plastic [b] (repose angle: 40 °) of m or less was supplied to the furnace alone was set to "1", and the supply trouble occurrence frequency compared with this case was shown by an index. . Whether there is a supply problem or not is monitored by constantly monitoring the weight fluctuation of granular plastic in the storage silo,
Weight fluctuation: 0 state for a predetermined time (for example, about 10 minutes)
In the case of continuing, it was judged that trouble occurred (clogging occurred in the silo cutout part or in the middle of the pneumatic tube). (B) Coke substitution rate Coke substitution rate = (Coke ratio reduced by blowing granular plastic) / (Blow rate of granular plastic) However, Coke ratio reduced by blowing granular plastic: kg / t · pig, granular Blowing ratio of plastics: kg / t · pig According to FIG. 29, if the ratio of the granular plastic [a] in the total granular plastic is 10% or more, excellent combustibility and transportability can be obtained. . Therefore, such a mixture of granular plastics is suitable as a furnace raw material when it is pneumatically supplied to a furnace such as a blast furnace or a scrap melting furnace and is blown into the furnace from its tuyere or the like.

Further, the furnace raw material obtained by the raw material producing method of the present invention preferably has a bulk density of 0.30 or more and an angle of repose of 40 ° or less. As described above, in the prior art, it has been proposed to make the bulk density of the crushed plastics to be 0.35 or more, but especially for crushed solid plastics, the higher the bulk density, the more There is a problem that the load is increased (the life of the crushing blade is shortened), and some crushers can only obtain pulverized products having a bulk density of less than 0.35. On the other hand, according to the study by the present inventors, if the bulk density of the granular plastic is 0.30 or more, no problem will occur in pneumatic transportation of the granular plastic including points such as pressure loss. The occurrence of troubles such as bridges (shelf) in storage silos of granular plastics and clogging around bent pipes and valves in the pneumatic tube system has little to do with the bulk density of granular plastics. It was found that the grain shape greatly depends on the grain shape, and the effect of suppressing the occurrence of the above troubles based on the grain shape can be arranged by the angle of repose of the granular plastic.

FIG. 30 shows the angle of repose of a granular plastic having a particle size of 6 mm or less obtained by crushing solid plastics, the bridge (shelf) in the storage silo, and the clogging in the pneumatic tube. The relationship with the frequency of occurrence of supply trouble is shown for each granular plastic having a different bulk density. In addition, the evaluation of the occurrence frequency of supply trouble is shown in Figure 2.
It carried out by the method similar to 9. According to FIG. 30, regardless of the bulk density of the granular plastic, it can be understood that the above-mentioned supply trouble can be appropriately prevented by setting the angle of repose to 40 ° or less.

Among the granular plastics mentioned above,
It was found that the granular plastics having an angle of repose of 40 ° or less can be obtained only by the granular shrinkage solidification or the shrinkage solidification-granulation by the method described above. On the other hand, volume-reduced solidification by the above method-granular plastic obtained by granulation or shrinkage solidification by a method other than the above-granular plastic obtained by granulation, or granular plastic obtained by crushing solid plastics In order to achieve a repose angle of 40 ° or less, it is preferable that a crushing method or the like be appropriately selected. The particle size of the granular plastic used as a raw material in the present invention is 10 m from the viewpoint of flammability.
m or less, preferably 4 to 8 mm.

[0107]

EFFECTS OF THE INVENTION According to the above-described raw material production method of the present invention, blast furnaces and It can be processed into raw materials for scrap melting furnaces (particularly iron source reducing agents), which enables large-scale processing and effective utilization of waste plastics, and also raw materials for furnaces such as blast furnaces. The cost can be reduced significantly. further,
The fluidity, transportability and flammability of plastics supplied to the furnace can be effectively increased, and plastics can be used as a raw material in a blast furnace, scrap melting furnace, etc. without hindering the operation of the furnace. .

[Brief description of drawings]

FIG. 1 is a flowchart showing an embodiment of a first raw material conversion method of the present invention.

FIG. 2 is a flow chart showing another embodiment of the automatic sorting step constituting the present invention.

FIG. 3 is a flowchart showing an embodiment of a second raw material conversion method of the present invention.

FIG. 4 is a flowchart showing an embodiment of a third raw material conversion method of the present invention.

FIG. 5 is a flowchart showing an embodiment of a fourth raw material conversion method of the present invention.

FIG. 6 is a flowchart showing an embodiment of a fifth raw material conversion method of the present invention.

FIG. 7 is a flowchart showing an embodiment of a sixth raw material conversion method of the present invention.

FIG. 8 is a flowchart showing an embodiment of the raw material conversion equipment of the present invention.

FIG. 9 is an explanatory view showing an embodiment of a sorting apparatus which constitutes the raw material conversion equipment of the present invention.

FIG. 10 is an explanatory view showing another embodiment of the sorting apparatus which constitutes the raw material conversion equipment of the present invention.

FIG. 11 is an explanatory view showing another embodiment of the sorting apparatus which constitutes the raw material conversion equipment of the present invention.

FIG. 12 is an explanatory view showing an embodiment of an apparatus for separating and removing chlorine-containing plastics which constitutes the processing line B of the raw material production equipment of the present invention.

FIG. 13 is an explanatory view showing another embodiment of the separation and removal apparatus for chlorine-containing plastics which constitutes the processing line B of the raw material production equipment of the present invention.

FIG. 14 is an explanatory view showing an embodiment of a granular solidification apparatus constituting the raw material conversion equipment of the present invention.

FIG. 15 is an explanatory view showing another embodiment of the granular solidification apparatus constituting the raw material conversion equipment of the present invention.

16 is an explanatory view schematically showing the principle of plastic processing by the granular solidification device of FIG.

FIG. 17 is an explanatory view showing an embodiment of a separation and removal apparatus for chlorine-containing plastics which constitutes the processing line C of the raw material conversion equipment of the present invention.

FIG. 18 is an explanatory view showing an embodiment of a chlorine removing device which constitutes the raw material conversion equipment of the present invention.

FIG. 19 is an explanatory view showing another embodiment of the chlorine removal device which constitutes the raw material conversion equipment of the present invention.

FIG. 20 is an explanatory view showing another embodiment of the chlorine removal device that constitutes the raw material conversion facility of the present invention.

FIG. 21 is an explanatory view showing another embodiment of the chlorine removal device which constitutes the raw material conversion equipment of the present invention.

22 is a cross-sectional view of the rotary kiln body of the chlorine removal device of FIG.

FIG. 23 is an explanatory view showing another embodiment of the chlorine removing device constituting the raw material conversion equipment of the present invention.

FIG. 24 is a vertical cross-sectional view of the rotary kiln body of the chlorine removal device of FIG.

FIG. 25 is a cross-sectional view of the rotary kiln body of the chlorine removal device of FIG.

FIG. 26 is a vertical cross-sectional view of a rotary kiln main body in another embodiment of the chlorine removal device that constitutes the raw material conversion equipment of the present invention.

27 is a cross-sectional view of the rotary kiln body of the chlorine removal device of FIG. 26.

FIG. 28 is a transverse cross-sectional view of a rotary kiln main body in another embodiment of the chlorine removal device constituting the raw material conversion equipment of the present invention.

FIG. 29 is a graph showing the relationship between the ratio of the granular plastics obtained by shrink-solidifying and granulating the film-like plastics by a specific method, the coke replacement rate, and the supply trouble occurrence frequency.

FIG. 30 is a graph showing the relationship between the angle of repose and the frequency of occurrence of supply trouble for granular plastics obtained by pulverizing solid plastics for different granular plastics having different bulk densities.

[Explanation of symbols]

a, a ₁ , a ₁ ′, a ₁ ″, a ₂ , a ₃ , b, b ₁ , b ₂ ,
_{b 3, b 4, b 11} , b 12, b 13, b 14, b 21, b 22,
_{b 23, c, c 1,} c 2, c 3, c 4, c 31, c 32, c 33,
d, d ₁ , d ₂ , e, f, f ₁ ... Process, A ... Sorting equipment, B
... Processing line, C ... Processing line, D ... Processing line, E ...
Hydrochloric acid treatment facility, F ... treatment line, B '... treatment line, 1
... sorter, 2 ... bag breaker, 3a, 3b, 3c ... magnetic separator, 4
... Crushing device, 5 ... Separation and removal device, 6 ... Granular solidification device, 7
... Separating and removing device, 8 ... Crushing device, 9 ... Magnetic separator, 10 ... Aluminum sorter, 11 ... Chlorine removing device, 12 ... Processing device, 1
3 ... Chlorine removing device, 14 ... Processing device, 15a, 15b ...
Conveyance path, 16 ... Charging means, 17 ... Air injection nozzle, 1
8a, 18b, 18c ... Recovery means, 19 ... Repulsion plate, 20
a, 20b ... rotary shaft, 21 ... through-hole, 22 ... separation tank,
23a, 23b ... Screen, 24 ... Dryer, 25 ... Drainage tank, 26 ... Main body, 27 ... Inner cylinder, 28 ... Motor,
29 ... Openings, 30a, 30b ... Screws, 31a, 3
1b ... Discharge port, 32 ... Discharge port, 33 ... Crushing device, 34 ...
Volume reducing and solidifying device, 35 ... Heating chamber, 36 ... Cooling chamber, 37 ... Conveying device, 38 ... Crushing device, 39 ... Tank, 40 ... Rotating blade, 41 ... Quenching means, 42 ... Aligning / conveying device, 43 ... Projector, 44 ... Light receiver, 45 ... Information processing part, 46 ... Sorting part, 47 ... Pyrolysis furnace main body, 48 ... Screw feeder, 49 ... Stirring blade, 50 ... Extraction port, 50a ... Shutoff valve, 51 ... Discharge port, 53, 54 ... Motor, 55 ... Screw feeder, 56 ... Supply port, 57 ... Withdrawal port, 5
8 ... Discharge port, 59 ... Heating device, 60 ... Motor, 61 ... 2
Axial screw feeder, 62a, 62b ... Supply port, 6
3 ... Supply screw feeder, 64 ... Withdrawal port,
65 ... Heat medium supply port, 66 ... Discharge port, 67 ... Motor, 68
... motor, 69 ... rotary kiln body, 70 ... refractory, 71 ... iron skin, 72 ... passage, 73 ... rotary kiln body, 74 ... outer pipe, 75, 75a, 75b, 75c ... inner pipe, 76 ... passage, 77 ... passage , 78 ... Screw feeder, 79 ... Hot air conduit, 80 ... Discharge port, 81 ... Discharge port,
82 ... withdrawal port, 83 ... drive motor, 84 ... gas conduit

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikiyuki Asano, 1-2, Marunouchi, Chiyoda-ku, Tokyo Within Nippon Steel Pipe Co., Ltd. (72) Minoru Asanuma, 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Co., Ltd. (72) Inventor Keishi Akiu 1-2-2 Marunouchi, Chiyoda-ku, Tokyo Japan Steel Pipe Co., Ltd. (56) Reference JP-A-9-193157 (JP, A) JP-A-9-170009 ( JP, A) JP 9-239344 (JP, A) JP 10-58451 (JP, A) JP 9-216226 (JP, A) JP 6-63941 (JP, A) 56-84078 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B29B 17/00-17/02 C08J 11/00-11/28 B09B 3/00-5/00

Claims (22)

(57) [Claims] 1. A waste [x] which receives a waste mainly composed of plastics, and is made of a lightweight material containing the plastic mainly composed of film plastics.
A step a of automatically separating into a waste [y] consisting of a medium-weight product containing plastics mainly composed of solid plastics and a waste [z] consisting of a heavy product containing substantially no plastics; A step b in which at least main chlorine-containing plastics are separated and removed from the separated waste [x], and then processed into a granular furnace raw material, and at least a main chlorine-containing plastic is contained in the separated waste [y]. After the plastics are separated and removed, the step c is processed into a granular or small piece-shaped furnace raw material, and the chlorine-containing plastics separated and removed in the steps b and c are dechlorinated, and then the granular or small pieces are formed. Process d into a furnace-like raw material, and a process e for treating hydrogen chloride generated by the dechlorination process in the process d, wherein the process b includes at least the waste [x]. The crushing process, the process of separating and removing at least the main chlorine-containing plastics from the plastics that have undergone the process, and the plastics that have undergone the process are melted or semi-molten and then solidified to reduce the volume and solidify. And a step of obtaining at least granular chlorine-containing plastics from the waste [y], and
The step of crushing the plastics after the step to obtain a granular or small piece of furnace raw material, the step d at least dechlorinating the chlorine-containing plastics separated and removed in the steps b and c. And a step of processing the plastics that have undergone this step into a granular or small piece-shaped furnace raw material. 2. A waste [x] which receives a waste mainly composed of plastics, and is made of a lightweight material containing the plastics mainly composed of film-shaped plastics,
A step a of automatically separating into a waste [y] consisting of a medium-weight product containing plastics mainly composed of solid plastics and a waste [z] consisting of a heavy product containing substantially no plastics; A step b in which the separated waste [x] is dechlorinated and then processed into a granular or small piece of furnace raw material, and at least main chlorine-containing plastics are separated from the separated waste [y]. Step c of separating and removing and processing into a granular or small piece of furnace raw material; and dechlorinating the chlorine-containing plastics separated and removed in the step c, and then processing into a granular or small piece of furnace raw material. And a step e of treating hydrogen chloride generated by the dechlorination treatment of the steps b and d, wherein the step b is at least a step of crushing the waste [x], and a step of Has passed It comprises a step of dechlorinating the plastics and a step of processing the plastics that have undergone the step into a granular or flaky furnace raw material, wherein the step c is at least the major chlorine from the waste [y]. A step of separating and removing the contained plastics,
The step of crushing the plastics that have passed through the step to obtain a granular or small piece of furnace raw material, the step d at least dechlorinating the chlorine-containing plastics separated and removed in the step c. And a step of processing the plastics that have undergone the step into a granular or small piece-shaped furnace raw material. 3. A waste [x] which is a light-weight material containing plastics, which mainly receives plastics-based wastes.
A step a of automatically separating into a waste [y] consisting of a medium-weight product containing plastics mainly composed of solid plastics and a waste [z] consisting of a heavy product containing substantially no plastics; Step b in which the separated waste [x] is processed into a granular furnace raw material, and at least major chlorine-containing plastics are separated and removed from the separated waste [y], and then the granular or small pieces are formed. Process c for processing into the furnace raw material of step c, dechlorinating the chlorine-containing plastics separated and removed in step c, and then processing into a granular or small piece of furnace raw material; And a step of treating hydrogen chloride generated by the dechlorination treatment, wherein the step b includes at least a step of crushing the waste [x] and a step of melting or semi-melting the plastics that have passed through the step. A step consists of a step of obtaining a volume-reduced solidified particulate furnace material, wherein step c is at least, to separate off at least a major chlorine-containing plastics from waste [y] by solidifying after,
The step of crushing the plastics that have passed through the step to obtain a granular or small piece of furnace raw material, the step d at least dechlorinating the chlorine-containing plastics separated and removed in the step c. And a step of processing the plastics that have undergone the step into a granular or small piece-shaped furnace raw material. 4. A waste [x] consisting of a plastic-based waste material and a light-weight plastic-based plastics-containing plastic material.
A step a of automatically separating into a waste [y] consisting of a medium-weight product containing plastics mainly composed of solid plastics and a waste [z] consisting of a heavy product containing substantially no plastics; After separating and removing at least main chlorine-containing plastics from the separated waste [x], the step b is processed into a granular furnace raw material, and the separated waste [y] is formed into a granular or small piece. Of the furnace raw material of step c, step d of dechlorinating the chlorine-containing plastics separated and removed in step b, and then processing into a granular or small piece of furnace raw material; And a step e of treating hydrogen chloride generated by the dechlorination treatment, wherein the step b is at least a step of crushing the waste [x], and at least a main salt from the plastics that have undergone the step. A step of separating and removing the contained plastics, and a step of obtaining a reduced volume solidified granular furnace raw material by melting or semi-melting the plastics that have passed through the step and then solidifying, and the step c is at least , Crushing waste [y],
And a step of dechlorinating the chlorine-containing plastics separated and removed in the step b, and a step of obtaining the granular or small pieces of the plastics after the step. A process for converting plastic waste into a furnace raw material, which comprises the step of processing into a flaky furnace raw material. 5. A waste [x] which receives a waste mainly composed of plastics, and is made of a lightweight material containing the plastic mainly composed of film-like plastics,
A step a of automatically separating into a waste [y] consisting of a medium-weight product containing plastics mainly composed of solid plastics and a waste [z] consisting of a heavy product containing substantially no plastics; A step b in which the separated waste [x] is dechlorinated and then processed into a granular or small piece of furnace raw material; and the separated waste [y] is formed into a granular or small piece of furnace raw material. And a step e of treating hydrogen chloride generated by the dechlorination treatment of the step b, wherein the step b is at least a step of crushing the waste [x], and a step of Process of dechlorinating the plastics that have passed through the process, and processing of the plastics that have passed through the process into a granular or small piece of furnace raw material, wherein the process c at least crushes the waste [y]. Then
A method for converting a plastic waste into a furnace raw material, which comprises the step of obtaining a granular or small piece of furnace raw material. 6. A waste [x] which receives waste mainly composed of plastics, and is made of a light-weight material including plastics mainly film-shaped plastics,
A step a of automatically separating into a waste [y] consisting of a medium-weight product containing plastics mainly composed of solid plastics and a waste [z] consisting of a heavy product containing substantially no plastics; And a step b for processing the separated waste [x] into a granular furnace raw material, and a step c for processing the separated waste [y] into a granular or flaky furnace raw material. The step b is at least a step of crushing the waste [x], and a step of obtaining a reduced-volume solidified granular furnace raw material by melting or semi-melting the plastics that have undergone the step and then solidifying them. And in the step c, at least the waste [y] is crushed,
A method for converting a plastic waste into a furnace raw material, which comprises the step of obtaining a granular or small piece of furnace raw material. 7. The process (a) is characterized in that the waste mainly composed of plastics is automatically separated into a waste [x], a waste [y] and a waste [z] by a single separation process. The method for converting a plastic waste into a furnace raw material according to claim 1, 2, 3, 4, 5 or 6. 8. A waste [x] comprising a plastics-based waste as a main material and a plastics-based solids-based plastic as a main material in the step a. Characterized in that the waste [y + z] is automatically sorted into the waste [y] and the waste [z] after the waste [y + z] including the medium weight and the heavy waste including the substances is automatically sorted. The method for converting a plastic waste into a furnace raw material according to claim 1, 2, 3, 4, 5 or 6. 9. The step (a) at least comprises a step of breaking a bag body containing a waste mainly composed of plastics,
A step of separating and removing iron-based waste by magnetic separation from the waste that has passed through the step, and automatically separating the waste that has passed through the step into waste [x], waste [y], and waste [z]. The process according to claim 1, 2, 3,
The method for converting a plastic waste into a raw material for a furnace according to 4, 5, 6, 7 or 8. 10. The automatic sorting of waste in step a is performed by wind force sorting.
4, 5, 6, 7, 8 or 9 is a method for making a plastic waste into a raw material for a furnace. 11. The automatic sorting of waste in step a is performed by rocking sorting.
4, 5, 6, 7, 8 or 9 is a method for making a plastic waste into a raw material for a furnace. 12. In step a, the waste [x] and the waste [y + z] mainly made of plastics are automatically separated by rocking and sorting, and the subsequent waste [y + z].
9. The method for converting a plastic waste into a raw material for a furnace according to claim 8, wherein the automatic separation of the waste [y] and the waste [z] is carried out by wind screening or swing screening. 13. The step c includes at least a step of separating and removing at least a main non-plastic waste from the waste [y], and a step of separating and removing at least a main chlorine-containing plastics from the waste that has passed through the step. And a step of crushing the plastics that have undergone the step and processing into a granular or small piece-shaped furnace raw material, the furnace raw material for plastic waste according to claim 1, 2 or 3. Method. 14. The chlorine-containing plastics separating and removing step in step b is characterized in that the chlorine-containing plastics are separated and removed by a wet separation method utilizing a difference in specific gravity between the chlorine-containing plastics and other plastics. The method for converting a plastic waste into a furnace raw material according to claim 1 or 4. 15. In the step of separating and removing the chlorine-containing plastics in the step c, the plastics are irradiated with light,
The chlorine-containing plastics are distinguished from other plastics by absorbing infrared rays or near-infrared rays having a specific wavelength of the irradiation light, and the chlorine-containing plastics are separated and removed. A method for converting a plastic-based waste into a furnace raw material. 16. At least the granular furnace raw material obtained in step b and the granular or flaky furnace raw material obtained in step c are mixed, and this mixture is used as a blowing raw material for the furnace. The method for converting a plastic waste into a furnace raw material according to claim 1, 2, 3, 4, 5 or 6. 17. The granular or flaky furnace raw material obtained in step b, step c and step d has a bulk density of 0.30 or more,
The angle of repose is 40 ° or less.
2. The method for converting a plastic-based waste into a raw material for a furnace according to 2, 3, 4, 5 or 6. 18. A method of supplying a raw material to a furnace, which comprises supplying the mixture of the furnace raw material according to claim 16 to the furnace by air, and blowing the mixture into the furnace. 19. A waste [x] which receives waste mainly composed of plastics and which is made of a light-weight material including plastics mainly film-shaped plastics.
And a waste [y] consisting of medium-weight materials containing solid plastics as a main component and a waste [z] consisting of heavy materials containing substantially no plastics. A sorting facility A, a treatment line B for processing at least major chlorine-containing plastics from the separated waste [x], and then processing into granular furnace raw material, and the separated waste [ y), at least main chlorine-containing plastics are separated and removed, and then a processing line C for processing into a granular or small piece of furnace raw material, and chlorine-containing separated and removed in the processing line B and the processing line C After dechlorinating the plastics, a processing line D for processing into a granular or small piece of furnace raw material, and hydrogen chloride generated by the dechlorination of the processing line D are treated. The treatment line B comprises a crushing device for crushing the waste [x], and chlorine-containing plastics separated from the plastics crushed by the crushing device. A separating / removing device for removing and a granular solidifying device for processing the plastics that have passed through the separating / removing device into a reduced volume solidified furnace raw material by melting or semi-melting and then solidifying. Then, the processing line C is a separation / removal device for separating and removing chlorine-containing plastics from the waste [y], and a crushing process of the plastics that has passed through the separation / removal device to form a granular or small piece of furnace raw material. The processing line D is a chlorine for dechlorinating the chlorine-containing plastics separated and removed in the processing line B and the processing line C. Removed by apparatus and a furnace material of equipment plastic waste, characterized in that it comprises a processing device for processing the plastics passing through the the chlorine removal device into granules or small pieces of the furnace feedstock. 20. A process line B'for dechlorinating the waste [x] and then processing it into a granular or small piece of furnace raw material, wherein the process line B'at least removes plastics. 20. The plastic according to claim 19, further comprising: a chlorine removing device for performing a chlorine treatment, and a processing device for processing the plastics that have passed through the chlorine removing device into a granular or flaky furnace raw material. Equipment for the production of system waste as a furnace raw material. 21. The processing line B is provided with a conveying path capable of supplying the plastics that have passed through the crushing device to the granular solidification device without passing through the separation and removal device. Equipment for making plastic waste into a furnace raw material. 22. The processing line C is provided with a transfer path capable of supplying the waste [y] received in the line to the crushing device without passing through the separation / removal device. 20. A facility for converting plastic waste into a raw material for a furnace according to 20 or 21.