JP2011156484A - Method and apparatus for mixing waste carbide and water - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce time and energy consumption in mixing and agitation operations. <P>SOLUTION: The water tank body 12 of a water seal tank 4 is connected to the carbide take-out port 9 of a thermal decomposition device 2 via a carbide chute 11. The water tank body 12 is configured to store a surfactant aqueous solution 14, and an agitation device 16 is provided near a charge position of the carbide 3 which is passed through the carbide chute 11. The carbide 3 produced by thermal decomposition of waste 1 in the thermal decomposition device 2 is charged into the surfactant aqueous solution 14 stored in the water tank body 12 of the water seal tank 4 through the carbide chute 11, thereby making the carbide 3 come into contact with the surfactant aqueous solution 14 to make the hydrophobic surface turn to the hydrophilic surface. The carbide 3 in which an apparent light specific gravity is eliminated by infiltrating the surfactant aqueous solution 14 into a porous structure, is uniformly mixed and dispersed into the surfactant aqueous solution 14 in a short time by minimum physical agitation and mixing by the agitation device 16. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a waste carbide and water mixing method and apparatus used to uniformly mix waste carbide produced by pyrolyzing waste such as municipal waste with water.

  As one of the means to make effective use of waste such as municipal waste, the waste is pyrolyzed by pyrolyzer to produce carbide and reused as fuel in combustion equipment such as boilers at various facilities. Attempts have been made to achieve thermal recycling.

  By the way, when the waste carbide is reused as fuel, the carbide taken out in the form of powder or flakes from the thermal decomposition apparatus is mixed (dispersed) evenly in water, or the waste carbide A treatment for uniformly containing (mixing) water may be required.

  That is, for example, in order to collect carbide produced by a thermal decomposition apparatus that performs thermal decomposition treatment of waste, a carbide sealed at the outlet side of the thermal decomposition apparatus (water tank) and extracted from the thermal decomposition apparatus (Char) is dropped into water in the water-sealed tank, whereby the carbide is cooled with water to extinguish the fire, and the carbide is recovered as a slurry.

  In addition, for the purpose of lowering the concentration of chlorine (Cl) contained in the above-mentioned carbides derived from chlorine-containing plastics mixed in the waste, the carbides taken out from the pyrolyzer are mixed and dispersed in water. In addition, a chlorine component that is an inorganic salt is eluted in water and diluted (washed) (see, for example, Patent Document 1 and Patent Document 2).

  Furthermore, it has also been proposed to separate and take out foreign substances such as metal and rubble that have been mixed in the carbide with respect to the carbide dropped into the water in the water-sealed tank (for example, Patent Document 2).

  On the other hand, in the method of producing solid fuel (RDF) using waste carbide (waste pyrolysis char) as a raw material and reusing it, 10-30% of the carbide is formed in the carbide to form the carbide with a molding machine. Water (moisture) is added, and then the above-mentioned carbide is molded using a molding means such as a compression molding machine, an extrusion molding machine, a rolling granulator, etc., using this water as a binder, and converted into solid fuel (RDF). (For example, refer to Patent Document 3).

JP 2000-192050 A JP 2003-236406 A JP 2001-271080 A

  However, the carbide produced by thermally decomposing waste with a pyrolyzer has a property of being porous, having a small apparent specific gravity, and having a low surface hydrophilicity.

  For this purpose, for example, in a water-sealed tank provided on the outlet side of the thermal decomposition apparatus as shown in Patent Document 1 and Patent Document 2, carbides taken out from the thermal decomposition apparatus are stored in the water-sealed tank. Even if the water is simply supplied (dropped supply), the carbide floats on the surface of the water, and as it is, the effect of cooling the carbide with water and the effect of desalting from the carbide cannot be obtained.

  Furthermore, even if the carbide is continuously supplied to the water sealing tank, the carbide is deposited on the water surface, and the carbide deposited on the water surface is used to guide the carbide from the thermal decomposition apparatus to the water sealing tank. There is a concern that the line and the chute may be blocked.

  In view of the above points, the one disclosed in Patent Document 1 includes a circulating line that circulates water and slurry by a pump in a water-sealed tank, and is dropped into the water-sealed tank from a thermal decomposition apparatus. Is forced to flow into the water together with the water flow and the slurry flow circulated in the circulation line so as to forcibly carry out the mixing and stirring of the carbide and water.

  Moreover, in what was shown by the said patent document 2, the stirrer is provided in the water-sealed tank, and the said stirrer is made to forcibly perform mixing stirring of the said carbide | carbonized_material and water.

  On the other hand, in the one shown in Patent Document 3, 10-30% of water is evenly mixed with waste carbide (waste pyrolysis char), and solid fuel is formed by molding carbide using the water as a binder. However, due to the properties of the carbide as described above, the carbide and water are not evenly mixed simply by spraying a predetermined amount of water from the nozzle onto the carbide. However, if a predetermined amount of water is not evenly mixed with the carbide and the water content is partially uneven, the water does not work as an effective binder when molding the carbide.

  Therefore, in what was shown by patent document 3, the mixing stirring of the waste carbide | carbonized_material and water is forcedly performed using a mixing stirring apparatus.

  Therefore, forcibly mixing and stirring is conventionally performed in order to uniformly mix the waste carbide and water, and in fact, it is very powerful to blend the carbide with water. Since it is necessary to perform mixing and stirring for a long time, it takes a long time for the mixing and stirring process, and the actual consumption of energy has increased.

  In view of this, the present invention is able to more easily carry out uniform mixing of carbide and water produced by pyrolyzing waste with a pyrolyzer, and mixing and stirring the carbide and water. It is an object of the present invention to provide a method and an apparatus for mixing waste carbide and water that can reduce the time and energy consumption required for the process.

  In order to solve the above-mentioned problem, the present invention, corresponding to claim 1, is a carbide produced by thermally decomposing waste with a pyrolyzer, and the surface of the carbide with an aqueous solution of a surfactant. It is set as the mixing method of the water contained in this aqueous solution in the wet state, or the waste carbide and water mixed with another water with stirring.

  Further, in the above configuration, the surface of the carbide is wetted with an aqueous solution of a surfactant used for preventing the dust of coal powder from scattering.

  Further, in each of the above-described configurations, an aqueous solution of a surfactant in the container, a water-cooling treatment for extinguishing the carbide species of the carbide taken out from the thermal decomposition apparatus for thermally decomposing the waste, and an inorganic contained in the carbide The amount of the salt required to perform one or both of the chloride desalination treatment is stored, and the carbide produced in the thermal decomposition apparatus is supplied to the aqueous solution of the surfactant stored in the vessel. Stir and mix.

  Similarly, in each of the above-described configurations, a surfactant aqueous solution is stored in a surfactant aqueous solution tank, and heat is applied to thermally decompose waste into the surfactant aqueous solution stored in the surfactant aqueous solution tank. A carbide that is taken out from the cracking device is supplied, the carbide is wetted with an aqueous solution of the surfactant, and then a water-cooling treatment for extinguishing the ignition of the carbide that is taken out from the thermal cracking device, and included in the carbide. In order to carry out one or both of the inorganic chloride desalting treatment, the carbide retained in the aqueous solution of the surfactant is added to the water stored in another container, and the mixture is stirred and mixed.

  Corresponding to claim 5, a container for introducing carbide produced by pyrolyzing waste with a pyrolyzer, means for supplying an aqueous solution of a surfactant to the carbide, and the container A waste carbide and water mixing apparatus having a configuration including a means for supplying water into the container and a stirring device for stirring the inside of the container.

  Further, in accordance with claim 6, an aqueous solution of a surfactant is subjected to a water-cooling treatment for extinguishing the char species of the carbide taken out from the thermal decomposition apparatus for thermally decomposing the waste, and an inorganic contained in the carbide. A container which is stored in an amount required for performing one or both of the desalination treatments of the chloride of the system and which can supply the carbide, and a stirring device for stirring the inside of the container A waste carbide and water mixing device having a configuration provided.

  Further, corresponding to claim 7, a surfactant aqueous solution tank for wetting the carbides taken out from the thermal decomposition apparatus for thermally decomposing waste with an aqueous solution of a surfactant is further provided, A water-cooling process for extinguishing the carbides of the carbides taken out from the thermal decomposition apparatus, and the inorganic chlorination contained in the carbides. A waste carbide having a configuration including a container for charging water in an amount required to perform one or both of the desalting treatment of a substance and a stirring device for stirring the inside of the container And water mixing equipment.

According to the present invention, the following excellent effects are exhibited.
(1) Carbide produced by pyrolyzing waste with a pyrolyzer, water contained in the aqueous solution in a state where the surface of the carbide is wetted with an aqueous solution of a surfactant, or another A method of mixing waste carbide and water that stirs and mixes with water, more specifically, the surface of the carbide is wetted with an aqueous solution of a surfactant that is used to prevent scattering of coal dust. Since it is a method of mixing waste carbide and water, the carbide produced by pyrolyzing the waste is brought into contact with an aqueous solution of the above surfactant to make its hydrophobic surface hydrophilic. Thus, a water film can be formed. Therefore, since the affinity of the carbide with water can be improved, the carbide can be uniformly mixed and dispersed with water in a short time by stirring with a stirring device.
(2) Therefore, physical agitation and mixing by the agitation device can be minimized, and the time and energy consumption required for the mixing and agitation processing for uniform mixing of the waste carbide and water are greatly increased. Can be reduced.
(3) A container for introducing carbide produced by pyrolyzing waste with a pyrolysis apparatus, means for supplying an aqueous solution of a surfactant to the carbide, and means for supplying water into the container And a waste carbide and water mixing device having a configuration provided with a stirrer for stirring the inside of the container, thereby facilitating a device configuration for obtaining the effects (1) and (2) above realizable.
(4) A water-cooling process for extinguishing the carbides of carbides taken out from a thermal decomposition apparatus for thermally decomposing waste from an aqueous surfactant solution, and desalting of inorganic chlorides contained in the carbides Disposal having a configuration comprising a container that can be stored in an amount required to perform one or both of the processes and that can supply the carbide, and a stirring device for stirring the inside of the container By using a carbonized carbide / water mixing apparatus, the apparatus configuration for obtaining the effects (1) and (2) can be easily realized. Furthermore, it becomes possible to efficiently and promptly perform a water cooling process in which the carbide is cooled with water to extinguish the type of fire and a desalting process of an inorganic salt contained in the carbide.
(5) A surfactant aqueous solution tank for moistening the carbide extracted from the thermal decomposition apparatus for thermally decomposing waste with an aqueous solution of a surfactant, and an interface taken out from the surfactant aqueous solution tank One of the water-cooling treatment for extinguishing the carbide of the carbide taken out from the pyrolyzer and the desalting treatment of the inorganic chloride contained in the carbide, which is wetted with the aqueous solution of the activator, or A waste carbide and water mixing apparatus comprising a container for introducing water into an amount required for performing both treatments, and a stirring device for stirring the inside of the container. Thus, in addition to being able to obtain the same effect as the above (4), it is possible to expect the effect of reducing the amount of the aqueous surfactant used, and hence the amount of the surfactant used.

As an embodiment of the method and apparatus for mixing waste carbide and water according to the present invention, an example in the case of applying to mixing water and carbide stored in a water-sealed tank provided on the outlet side of the thermal decomposition apparatus will be shown. FIG. It is a schematic diagram which shows the application example of embodiment of FIG. 1 as another form of implementation of this invention. It is a schematic diagram showing an example in the case of applying as a further embodiment of the present invention a mixture of waste carbide and water added as a binder for molding the carbide into a solid fuel. .

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 shows an embodiment of a method and apparatus for mixing waste carbide and water according to the present invention, in which a carbide 3 produced by a thermal decomposition apparatus 2 that performs thermal decomposition treatment of waste 1 is converted into the above-described thermal decomposition apparatus 2. An example applied when the mixture is introduced into the water stored in the water-sealed tank 4 provided on the outlet side and mixed, is as follows.

  That is, as the thermal decomposition apparatus 2, for example, the waste 1 supplied by the feeder 6 into the kiln furnace body 5 that is horizontally disposed so as to be rotationally driven is indirectly heated by external heat in the kiln furnace body 5. Then, after drying and pyrolyzing, the pyrolysis gas 10 generated by the pyrolysis and the carbide 3 as the pyrolysis residue are taken out from the top of the separation chamber 7 provided on the outlet side of the kiln furnace body 5. 8 and a pyrolysis device 2 that can be individually taken out from the carbide outlet 9 at the bottom.

  The lower end side of the carbide chute 11 having the upper end connected to the carbide outlet 9 of the separation chamber 7 of the thermal decomposition apparatus 2 is connected to the water sealing tank 4.

  The water-sealed tank 4 includes, as a surfactant, for example, a certain concentration aqueous solution (hereinafter simply referred to as a surfactant aqueous solution) 14 of a surfactant 13 for preventing dust (coal dust) such as coal from scattering. A water tank body 12 is provided as a container for storing and having a replenishing means 15 for the surfactant aqueous solution 14 so that the water level can be kept constant at all times. The water tank body 12 has a lower end side of the carbide chute 11. Are connected in a state where the lower end opening of the carbide chute 11 is disposed so as to be submerged below the surface of the aqueous surfactant solution 14 stored in the water tank body 12. As a result, the lower end opening of the carbide chute 11 is sealed with water, and the flammable pyrolysis gas 10 generated in the thermal decomposition apparatus 2 leaks through the carbide chute 11 to the water sealing tank 4 and the outside thereof. To prevent fear.

  Further, the water tank body 12 is provided with a stirring device 16 at a position below the surface of the surfactant aqueous solution 14 stored at the constant water level and in the vicinity of the lower end opening of the carbide chute 11. .

  More specifically, the replenishing means 15 for the surfactant aqueous solution 14 includes, for example, the stock solution tank 19 for the surfactant 13 in the middle of the replenishing water line 18 that leads the replenishing water 17 from a water pump (not shown). It is set as the structure connected through the chemical | medical agent supply line 20 provided with the chemical | medical agent supply pump 21 interlock | cooperated with the water pump which does not. Thereby, when the water level in the water tank main body 12 of the water sealing tank 4 is lower than a preset predetermined water level, the lowered water level is defined through the makeup water line 18 by the operation of the water pump (not shown). When supplying the replenishing water 17 in an amount to be recovered to the water level, the drug supply pump 21 is operated in conjunction with the water pump (not shown), so that the surface activity guided from the stock solution tank 19 through the drug supply line 20 is achieved. The stock solution of the agent 13 is added to the make-up water 17 supplied to the water tank body 12 through the make-up water line 18 at a predetermined ratio so that the interface with the make-up water 17 is added to the make-up water 17. The surfactant aqueous solution 14 in a state where the stock solution of the activator 13 is added at a predetermined ratio is replenished.

  The surfactant 13 for preventing the dust (coal dust) from scattering such as coal forms a water film by making the surface of the hydrophobic particles (dust) hydrophilic, and the particles are connected to each other by the water film. And a surfactant having a function of forming secondary particles. For example, there is (Idemitsu Coal Clean WA-500 (registered trademark). As the surfactant aqueous solution 14, an aqueous solution of several ‰ to several% of the surfactant 13 is used. For example, a 0.5% (5 ‰) aqueous solution may be used.

  Further, the amount of the surfactant aqueous solution 14 stored in the water tank body 12 of the water sealing tank 4 is such that the carbide 3 produced by the thermal decomposition apparatus 2 can be cooled with water to extinguish the fire, and the waste 1 It is assumed that the chlorine content derived from the chlorine-containing plastic and the like contained in the carbide 3 in the form of an inorganic salt is eluted in water and can be diluted to a desired concentration.

  22 is an outlet side provided at a lower position on one side of the water tank body 12 so as to extend obliquely upward to a position higher than the water level of the aqueous surfactant solution 14 stored in the water tank body 12 at a constant water level. The water tank section 23 is a scraping-type discharge conveyor provided along the bottom surface of the water tank body 12 and the bottom surface of the outlet water tank section 22. Thereby, a high specific gravity metal or other specific gravity contained in the carbide 3 introduced into the surfactant aqueous solution 14 stored in the water tank body 12 through the carbide chute 11 and sinking to the bottom of the water tank body 12. A large incombustible material 24 can be conveyed through the outlet water tank section 22 by the discharge conveyor 23 and discharged to the outside.

  Further, 25 is a slurry recovery line for taking out and recovering the slurry 26 formed as a mixture of the carbide 3 and the surfactant aqueous solution 14 from the water tank body 12, and 27 is provided on the downstream side of the slurry recovery line 25. Solid-liquid separation means, and the solid-liquid separation means 27 is configured to recover the carbide 3 as a solid component by subjecting the slurry 26 collected through the slurry collection line 25 to solid-liquid separation. A part of the surfactant aqueous solution 14 as a liquid component separated from the carbide 3 in the solid-liquid separation means 27 is returned to the water tank body 12 through a return line 28 and reused, and the rest is not shown. It is made to discharge to a wastewater treatment facility.

  When the carbide and water mixing apparatus of the present invention having the above-described configuration is used, the agitator 16 equipped in the water tank body 12 is operated, and in this state, the waste 1 is pyrolyzed by the pyrolyzer 2. Then, after being manufactured by this pyrolysis treatment, the carbide 3 separated from the pyrolysis gas 10 in the separation chamber 7 is stored in the water tank body 12 of the water seal tank 4 through the carbide chute 11 from the carbide outlet 9. The surfactant aqueous solution 14 is charged.

  As a result, the carbide 3 comes into contact with the surfactant aqueous solution 14 so that the hydrophobic surface is made hydrophilic and a water film is formed. The surfactant aqueous solution 14 can enter as moisture. Therefore, the affinity of the carbide 3 with water is improved, and the apparent lightness of specific gravity is eliminated. Therefore, the agitation with the agitation device 16 allows the surfactant aqueous solution 14 to be evenly distributed in a short time. It becomes mixed and dispersed.

  Thus, according to the method and apparatus for mixing carbide and water of the present invention, the carbide 3 produced by pyrolyzing the waste 1 with the pyrolyzer 2 is converted into the carbide outlet 9 of the pyrolyzer 2. By stirring with the surfactant aqueous solution 14 by the stirring device 16 in the water sealing tank 4 provided on the downstream side, uniform mixing can be performed in a short time. Therefore, physical stirring and mixing by the stirring device 16 can be minimized. Therefore, the time and energy consumption required for mixing and stirring for uniformly mixing the carbide 3 of the waste 1 and water can be greatly reduced.

  In addition, since the carbide 3 can be easily and uniformly mixed and dispersed in the surfactant aqueous solution 14 in a short time, the carbide 3 can be efficiently cooled with water to quickly extinguish the fire. Furthermore, the chlorine content contained in the carbide 3 in the form of an inorganic salt can be efficiently dissolved in the water of the surfactant aqueous solution 14, and is thus recovered by the solid-liquid separation means 27. Carbide 3 can be well desalted.

  Next, FIG. 2 shows an application example of the embodiment of FIG. 1 as another embodiment of the present invention. In the same configuration as shown in FIG. A surfactant aqueous solution tank 29 is provided between the carbide 3 and the carbide 3, which is produced by the thermal decomposition apparatus 2 and then recovered through the carbide chute 11 from the carbide outlet 9 of the separation chamber 7. The solution 30 is once received in the aqueous solution tank 29 and mixed with the surfactant aqueous solution 14, and then the mixture 30 of the carbide 3 and the surfactant aqueous solution 14 can be supplied to the water sealing tank 4.

  Specifically, the surfactant aqueous solution tank 29 is a container that can store the same surfactant aqueous solution 14 as the surfactant aqueous solution 14 in the embodiment of FIG. 29, the lower end side of the carbide chute 11 is connected in a state in which the lower end opening of the carbide chute 11 is disposed below the water surface of the surfactant aqueous solution 14 stored in the surfactant aqueous solution tank 29 so as to be submerged in a required dimension. It is.

  A chemical supply line 31 for guiding the surfactant aqueous solution 14 from a supply unit (not shown) is connected to a required portion in the surfactant aqueous solution tank 29, and further, stirring is performed near the lower end opening of the carbide chute 11. The apparatus 32 is provided.

  Furthermore, the upper end side of the chute 35 is connected to an outlet 33 with an opening / closing valve 34 provided in the lower part of the surfactant aqueous solution tank 29, and the lower end side of the chute 35 is connected to the water tank body of the water seal tank 4. 12 is connected.

  The surfactant aqueous solution tank 29 is a surfactant aqueous solution in an amount that can wet all the carbide 3 recovered through the carbide chute 11 from the carbide outlet 9 of the separation chamber 7 of the thermal decomposition apparatus 2. It is assumed that 14 can be stored.

  The water-sealed tank 4 can cool the carbide 3 produced by the thermal decomposition apparatus 2 with water and extinguish the fire species, and is derived from the chlorine-containing plastic in the waste 1 and is inorganic in the carbide 3. It is assumed that only the water 36 can be stored in order to elute chlorine contained in the salt state of the system into the water and dilute it to a desired concentration. Further, in view of storing only the water 36 in the water sealing tank 4, the water sealing tank 4 is connected with a replenishing water line 18 that guides only the replenishing water 17 from a water pump (not shown). Shall.

  Other configurations are the same as those shown in FIG. 1, and the same components are denoted by the same reference numerals.

  In the case of using the waste carbide and water mixing device of the present embodiment having the above-described configuration, the stirring device 32 provided in the surfactant aqueous solution tank 29 is operated, and in this state, the waste 1 is decomposed into a thermal decomposition device. The carbide 3 produced by the thermal decomposition treatment in 2 is introduced into the surfactant aqueous solution 14 stored in the surfactant aqueous solution tank 29 through the carbide outlet 9 and the carbide chute 11 of the separation chamber 7.

  As a result, the carbide 3 comes into contact with the surfactant aqueous solution 14 to improve the affinity with water and the lightness of the apparent specific gravity is eliminated. The surfactant aqueous solution 14 is uniformly mixed and dispersed in a short time.

  When the mixture 30 in which the carbide 3 and the surfactant aqueous solution 14 are uniformly mixed is formed as described above, the opening / closing valve 34 of the outlet 33 of the surfactant aqueous solution tank 29 is opened, and the mixture 30 is The water is supplied to the water-sealed tank 4 through the chute 35 and is poured into the water 36 stored in the water-sealed tank 4, and is stirred by the stirring device 16 provided in the water-sealed tank 4.

  At this time, the carbide 3 once mixed and dispersed in the surfactant aqueous solution tank 29 evenly with the surfactant aqueous solution 14 has a water film formed on the surface thereof, and the affinity with water is increased. In the water sealing tank 4, the water 36 that is stored is quickly and uniformly mixed and dispersed.

  Therefore, according to the present embodiment, the carbide 3 produced by pyrolyzing the waste 1 with the pyrolyzer 2 can be uniformly mixed with water in a short time. Since the physical agitation and mixing by 16 can be minimized, the time and energy consumption required for the agitation and agitation process for uniformly mixing the carbide 3 of the waste 1 and water can be greatly reduced. it can.

  In addition, since the carbide 3 can be easily and evenly mixed and dispersed in the water 36 stored in the water seal tank 4 in the state of the mixture 30 with the surfactant aqueous solution 14, the carbide 3 The fire type can be extinguished quickly by cooling with water efficiently. Further, the chlorine contained in the carbide 3 in the form of an inorganic salt can be efficiently dissolved in the water 36, and the carbide 3 recovered from the solid-liquid separation means 27 can be improved. It may have been desalted.

  Moreover, since the surfactant aqueous solution 14 used in the surfactant aqueous solution tank 29 only needs to be an amount that can wet the carbide 3, the amount of the surfactant aqueous solution 14 used can be reduced, and the surfactant can be reduced. The amount of stock solution 13 (see FIG. 1) can be reduced.

  Next, FIG. 3 shows, as still another embodiment of the present invention, stirring and mixing in a solid fuel production apparatus that converts a carbide 3 produced by a pyrolysis apparatus 2 that performs thermal decomposition treatment of waste 1 into solid fuel (RDF). This is an example that is applied when the carbide 3 is mixed with a required amount of water to be a binder, and is as follows.

  First, the configuration of the solid fuel production apparatus will be described. As shown in FIG. 3, the solid fuel production apparatus has a structure similar to that of the thermal decomposition apparatus 2 shown in FIG. As a coarse sorter that sorts and removes a carbide non-combustible material 38 contained in the carbide 3 and a carbide take-out device 37 that allows the carbide 3 to be taken out of the separation chamber 7 on the downstream side of the carbide take-out port 9 of the chamber 7. A vibrating screen 40, a magnetic sorting machine 41 that sorts and removes iron-based metals contained in the carbide 3 after the large incombustible material 38 is removed by the vibrating screen 40, and iron-based metals that are removed by the magnetic sorting machine 41. Carbide storage / supply machine 42 that can store and supply the carbide 3 after being removed, and an intermediate-size incombustible material included in the carbide 3 supplied from the carbide storage / supply machine 42. Select 39 A vibration sieve 43 as an intermediate sorter, a quantitative supply machine 44 configured to receive and quantitatively supply the carbide 3 after the intermediate-size incombustible material 39 is removed by the vibration sieve 43, and the quantitative supply machine 44. Stir and mix equipped with a stirrer in a container (not shown) for adding 10 to 30%, preferably 15 to 25% of water or steam 47 through the water supply line 46 to the carbide 3 to be more quantitatively supplied and stirring and mixing. Machine 45 is provided in order.

  Further, on the downstream side of the agitator / mixer 45, compression is performed by compressing and molding the carbide 3 supplied from the agitator / mixer 45 at a high pressure while crushing the carbide 3 to form a compression-molded product 48 having a required shape (for example, a cylindrical shape). Cooling for obtaining a solid fuel 52 as a product by forcibly cooling and drying the molding machine 49 and the compression molded product 48 molded by the compression molding machine 49 with the normal temperature air 51 supplied through the air supply line 50. The dryer 53 is provided in order.

  The apparatus configuration when the present invention is applied to the solid fuel production apparatus having the above-described configuration is between the carbide take-out device 37 for taking out the carbide 3 from the separation chamber 7 of the thermal decomposition apparatus 2 and the stirring mixer 45. A surfactant aqueous solution 14 similar to the surfactant aqueous solution 14 shown in the embodiment of FIG. 1 is supplied from a supply unit (not shown) to a required portion, for example, a path for supplying the carbide 3 from the fixed supply unit 44 to the stirring mixer 45. And a structure in which the surfactant aqueous solution 14 guided through the drug supply line 54 can be sprayed onto the carbide 3 supplied to the stirring mixer 45 from the quantitative supply machine 44. To do.

  At this time, the spray amount of the surfactant aqueous solution 14 is set so that the carbide 3 supplied from the quantitative feeder 44 to the stirring mixer 45 is wetted.

  55 is a vibration sieve provided at a downstream position of the cooling dryer 53, and the fine carbide 3 adhering to the solid fuel 52 as a product is sieved by the vibration sieve 55 and returned to the quantitative feeder 44. It is like that.

  56 is a magnetic sorter for sorting ferrous metals from the large incombustible material 38 and intermediate size incombustible material 39, 57 is provided downstream of the magnetic sorter 56, and the large incombustible material 38 This is an aluminum sorter for sorting aluminum as a non-ferrous metal and other non-combustible materials from the non-combustible material 39 of an intermediate size. Reference numeral 58 denotes a dust collector.

  In addition, the same components as those shown in FIG.

  In order to produce the solid fuel 52 by the solid fuel production apparatus having the above-described configuration, the predetermined amount of the carbide 3 supplied from the fixed quantity supply unit 44 by the stirring mixer 45 is added through the moisture supply line 46 serving as a binder. When the step of stirring and mixing with water or steam 47 is performed, the carbide 3 supplied from the metering feeder 44 is wetted in advance by the surfactant aqueous solution 14 sprayed from the drug supply line 54. The mixture is supplied to the agitator / mixer 45.

  Accordingly, the carbide 3 supplied to the stirring mixer 45 comes into contact with the surfactant aqueous solution 14 so that the hydrophobic surface is made hydrophilic and a water film is formed. Then, the carbide 3 wetted with the surfactant aqueous solution 14 is stirred together with a predetermined amount of water or steam 47 added through the moisture supply line 46 in the stirring mixer 45. Then, the water or steam 47 is uniformly mixed and dispersed in a short time.

  Thus, according to the embodiment, the carbide 3 of the waste 1 produced by the thermal decomposition apparatus 2 is uniformly mixed with water and steam 47 in a short time by stirring with the stirring mixer 45. Can do. Therefore, physical stirring and mixing by the stirring mixer 45 can be minimized. Therefore, the time and energy consumption required for the mixing and stirring process for uniformly mixing the carbide 3 with the water or steam 47 can be greatly reduced.

  Furthermore, since the carbide 3 can be easily mixed and dispersed with the water and the steam 47 in a short time, in the solid fuel production apparatus, the moisture uniformly contained in the carbide 3 can be used as a binder. Solid fuel 52 can be produced.

  Note that the present invention is not limited to the above embodiment. In the embodiment of FIG. 2, a chemical supply line 31 for guiding the aqueous surfactant solution 14 from a supply unit (not shown) is provided with a surfactant. Although the structure connected to the aqueous solution tank 29 was shown, the said chemical | medical agent supply line 31 is connected to the required location of the carbide | carbonized_material chute 11, and is supplied to the surfactant aqueous solution tank 29 through this carbide | carbonized_material chute | shoot 11 from the thermal decomposition apparatus 2. The carbide aqueous solution 14 may be sprayed on the carbide 3 in the middle to wet the carbide 3.

  The method and apparatus for mixing waste carbide and water according to the present invention makes the surface of the carbide 3 hydrophilic by bringing the carbide 3 into contact with the surfactant aqueous solution 14 at the time of stirring or mixing with the water or before that. As long as the water film can be formed, the container for mixing the carbide 3 and water may be any container, and the carbide 3, the surfactant aqueous solution 14, and the water supply means may be of any type. Also good.

  The present invention may be applied to any type of apparatus as long as it is necessary to uniformly mix the carbide 3 produced by pyrolyzing the waste 1 with water.

  Of course, various modifications can be made without departing from the scope of the present invention.

1 Waste 2 Pyrolysis device 3 Carbide 12 Water tank body (container)
13 Surfactant 14 Surfactant aqueous solution 15 Replenishment means (means)
16 Stirrer 18 Make-up water line (means)
20 Drug supply line (means)
29 Surfactant aqueous solution tank 31 Drug supply line (means)
32 Stirring device 45 Stirring mixer 46 Moisture supply line (means)
54 Drug supply line (means)

Claims (7)

  Carbide produced by pyrolyzing waste with a pyrolyzer, water contained in the aqueous solution in a state where the surface of the carbide is wetted with an aqueous solution of a surfactant, or another water A method for mixing waste carbide and water, characterized by stirring and mixing.   The method for mixing waste carbide and water according to claim 1, wherein the surface of the carbide is wetted with an aqueous solution of a surfactant used to prevent scattering of coal powder dust.   In the container, a water-cooling process for extinguishing the carbide of the carbide taken out from the thermal decomposition apparatus for thermally decomposing the waste with the aqueous solution of the surfactant, and desalting of inorganic chloride contained in the carbide Claimed to be stored in an amount required for performing one or both of the treatments, and to the aqueous solution of the surfactant stored in the container, the carbide produced by the thermal decomposition apparatus is supplied and stirred and mixed. Item 3. A method for mixing waste carbide and water according to item 1 or 2.   A surfactant aqueous solution is stored in a surfactant aqueous solution tank, and carbides extracted from a thermal decomposition apparatus that thermally decomposes waste are supplied to the surfactant aqueous solution stored in the surfactant aqueous solution tank. Then, the carbide is moistened with an aqueous solution of the surfactant, and then water-cooling treatment is performed to extinguish the carbide of the carbide taken out from the thermal decomposition apparatus, and the inorganic chloride contained in the carbide is removed. The waste carbide according to claim 1 or 2, wherein a carbide wetted with an aqueous solution of the surfactant is added to water stored in another container for performing one or both of the salt treatments, and the mixture is stirred and mixed. And water mixing method.   A container for introducing carbide produced by pyrolyzing waste with a thermal decomposition apparatus; means for supplying an aqueous solution of a surfactant to the carbide; means for supplying water into the container; A waste carbide and water mixing apparatus characterized by comprising a stirring device for stirring the inside of a container.   One of a water-cooling process for extinguishing the fire of a carbide taken out of a thermal decomposition apparatus for thermally decomposing waste from an aqueous solution of a surfactant, and a desalting process of an inorganic chloride contained in the carbide Or it has a configuration comprising a container that can be stored in an amount required to perform both treatments and that can supply the carbide, and a stirring device that stirs the inside of the container. Waste carbide and water mixing equipment.   A surfactant aqueous solution tank is provided for wetting the carbide extracted from the thermal decomposition apparatus for thermally decomposing the waste with an aqueous solution of the surfactant, and further, the surfactant is extracted from the surfactant aqueous solution tank. One or both of a water-cooling treatment for extinguishing the carbide of the carbide taken out from the thermal decomposition apparatus and a desalting treatment of the inorganic chloride contained in the carbide with respect to the carbide wetted with the aqueous solution A waste carbide and water mixing apparatus characterized by comprising a container for charging water in an amount required for carrying out and a stirring device for stirring the inside of the container.

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