JP2000065476A - Drying treatment method and device for wet waste - Google Patents

Drying treatment method and device for wet waste

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Publication number
JP2000065476A
JP2000065476A JP10231422A JP23142298A JP2000065476A JP 2000065476 A JP2000065476 A JP 2000065476A JP 10231422 A JP10231422 A JP 10231422A JP 23142298 A JP23142298 A JP 23142298A JP 2000065476 A JP2000065476 A JP 2000065476A
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JP
Japan
Prior art keywords
solid
gas
dry
pipe
drying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10231422A
Other languages
Japanese (ja)
Inventor
Kunio Fukuyama
Hiromasa Kusuda
Kozo Nagai
Masaharu Sasakura
Masakazu Sawai
Kazuyoshi Takagaki
浩雅 楠田
弘三 永易
正和 澤井
邦夫 福山
正晴 笹倉
一良 高垣
Original Assignee
Kawasaki Heavy Ind Ltd
川崎重工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Heavy Ind Ltd, 川崎重工業株式会社 filed Critical Kawasaki Heavy Ind Ltd
Priority to JP10231422A priority Critical patent/JP2000065476A/en
Publication of JP2000065476A publication Critical patent/JP2000065476A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

PROBLEM TO BE SOLVED: To provide a compact system in a combination system of an air flow drying machine for treating such wet waste as domestic animal excreta and drain sludge and a solid gas separation device such as a cyclon. SOLUTION: A wet waste is supplied to air flow transportation piping 12 of a dry solid being separated by a solid gas separation device (cyclon 22), the mixture is introduced to an air flow drying machine 16 along with an exhaust gas for drying that flows in the air flow transportation piping 12 for crushing and drying, an air flow drying machine outlet gas containing a dry solid is introduced into the solid gas separation device (cyclon 22), one portion of the separated dry solid is evacuated outside the system and at the same time the remainder of the dry solid is returned to the air flow transportation piping 12 that is connected to the air flow drying machine 16, and one portion of the separated solid gas separation device outlet gas is circulated to the air flow transportation piping 12 of the above drying solid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for drying wet waste such as livestock manure and sewage sludge with a flash dryer and separating a dry solid (dry powder) with a solid-gas separator such as a cyclone. The present invention relates to a method for drying wet waste, which is used as a fuel or fertilizer by forming a part of the separated dry solid (dry powder) and the like, and a drying apparatus suitable for a compact, in-vehicle type or the like for implementing the method. Things.

[0002]

2. Description of the Related Art Conventionally, there has been known a process in which wet waste such as livestock manure and sewage sludge is dried by a dryer, and the dried solid is used as fuel, fertilizer, or the like. Also, for example,
As described in Japanese Patent Application Laid-Open No. 8-176568, production of a fuel to be formed into a predetermined shape is performed by heating while kneading dry sludge obtained by drying a wet sewage sludge with plastics and, if necessary, quicklime. Methods are known.

[0003]

In the conventional wet waste drying treatment, in order to adjust the water content of the wet waste to be supplied, the wet waste is previously mixed with the dry solid of the waste. However, there is a demand for a system that can handle high-moisture wet waste without requiring such a special mixing and feeding device. Further, a system that does not use a mechanical transport device for solids is desired. Further, it is desired to make the entire system compact, for example, to be mounted on a vehicle as an on-vehicle type device and to be able to patrol small and medium-sized waste disposal sites.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to disintegrate and dry wet waste such as livestock manure and sewage sludge using a flash dryer, and to provide a solid-gas separation device such as a cyclone. In the separation of dry solids (dry powders) in high moisture wet wastes without the need for special mixing and feeding equipment to mix the wet wastes with the dry solids before feeding them to the flash dryer It can also respond, and does not require a mechanical transport device for solids, and furthermore, the use of the mixing and feeding device and the mechanical transport device does not require the use of, so that the required power can be drastically reduced. It is another object of the present invention to provide a compact and suitable drying apparatus for carrying out the method. Further, an object of the present invention is to disintegrate and dry wet waste with a flash dryer and to separate dry solids (dry powder) with a solid-gas separation device such as a cyclone. By providing such a configuration, it is possible to provide a method and an apparatus for drying wet waste which are compact and can be used in an on-vehicle apparatus or the like without using a special mechanical transport device for the separated dry solid matter. It is in.

[0005]

In order to achieve the above object, a method for drying wet waste according to the present invention is directed to a dry solid (dry powder) obtained by separating wet waste by a solid-gas separator.
The mixture is introduced into a flash dryer together with the drying exhaust gas flowing through the airflow transport pipe, and is crushed and dried. The outlet gas containing the dry solid (dry powder) is discharged from the flashstream dryer. It is introduced into a solid-gas separator, and a part of the separated dry solid (dry powder) is discharged out of the system, and the remaining part of the separated dry solid (dry powder) is connected to a flash dryer. The solid-gas separator is returned to the airflow conveying pipe, and a part of the separated gas at the outlet is circulated to the airflow conveying pipe for the dried solid (dry powder) (see FIG. 1). In addition, as an example, a cyclone is used as the solid-gas separation device. Further, the remaining part of the separated gas at the outlet of the solid-gas separator is deodorized and discharged out of the system.

Further, the method of the present invention comprises the steps of: separating wet waste into a portion of a dry solid matter (dry powder) separated by a first solid-gas separation device and a dry solid matter separated by a second solid-gas separation device; The product (dry powder) is supplied to the air flow transport pipe, and this mixture is introduced into a flash dryer with the exhaust gas for drying flowing in the air flow transport pipe to be crushed and dried, and contains a dry solid (dry powder). The gas at the outlet of the flash dryer is introduced into a first solid-gas separation device for roughing, and a part of the roughly separated dry solid (dry powder) is discharged out of the system, and the roughly separated dry solid ( The rest of the (dry powder) is returned to the pneumatic conveying pipe connected to the flash dryer, and the dried solid (dry powder) from the first solid-gas separation device is returned.
Is introduced into the second solid-gas separator with high precision, and the separated solids (dry powder) are introduced.
Is returned to an airflow pipe connected to a flash dryer, and a part of the separated second solid-gas separator outlet gas is circulated to the airflow pipe of the dried solid (dry powder). (See FIG. 4). In this case, the first solid-gas separation device is used for roughing, and it is sufficient that the first solid-gas separation device can roughly separate dry solids (dry powder), so that the height of the device can be reduced.

[0007] The method of the present invention further comprises the steps of: separating the wet waste into a portion of the dry solid (dry powder) separated by the first solid-gas separator and the dry solid separated by the second solid-gas separator. The product (dry powder) is supplied to the air flow transport pipe, and this mixture is introduced into a flash dryer with the exhaust gas for drying flowing in the air flow transport pipe to be crushed and dried, and contains a dry solid (dry powder). A part of the gas at the outlet of the flash dryer is introduced into the first solid-gas separator, and a part of the separated dry solid (dry powder) is discharged out of the system, and the separated dry solid (dry powder) is discharged. ) Is returned to the airflow piping connected to the flash dryer,
The remainder of the gas at the outlet of the flash dryer containing the dried solid (dry powder) is introduced into the second solid-gas separator in parallel with the first solid-gas separator, and the separated dry solid (dry powder) is separated. body)
Is returned to the air flow conveying pipe connected to the flash dryer, and a part of the total of the separated gas at the first solid-gas separator and the second gas at the second solid-gas separator is dried solid (dry powder). (See FIG. 5).
reference). In this case, the processing amount per solid-gas separation device is reduced, so that the size of each solid-gas separation device can be reduced.

[0008] In the method of the present invention, the wet waste is passed through a porous body having a plurality of pores, extruded from the porous body and fragmented, and then the fragmented wet waste is dried and dried. It is preferable to supply the powder (powder) to the airflow conveying pipe (see FIG. 2). In addition, as a porous body, a perforated plate, a mesh (net), or the like is used, for example. Further, in the method of the present invention, the wet waste is passed through a porous body having a plurality of pores, extruded from the porous body, and then cut and dispersed by a rotating cutting blade to disperse the wet waste. More preferably, the waste is supplied to a dry solid (dry powder) pneumatic conveying pipe (see FIG. 2). The shape of the cutting blade is, for example, a shape of a propeller, a screw, a plate, or the like. Further, the cutting blade is configured to be rotated by a drive source such as a motor, for example. Further, in the above method of the present invention, the wet waste is introduced into a spray pipe having a spray nozzle to form a dry solid (dry powder).
(See FIG. 3).

[0009] The method of the present invention further comprises the steps of:
After supplying the dry solid matter (dry powder) separated by the solid-gas separation device to a mixer into which the wet solid matter is added, and mixing the wet waste with the dry solid matter (dry powder) from the first solid-gas separation device, Then, the mixture is supplied to a pneumatic conveying pipe for dry solid matter (dry powder) separated by the second solid-gas separation device, and the mixture is introduced into a pneumatic dryer together with exhaust gas for drying flowing in the pneumatic conveying pipe. After being crushed and dried, the gas at the outlet of the flash dryer containing the dried solid (dry powder) is introduced into a first solid-gas separator for roughing, and one of the roughly separated dry solid (dry powder) is removed. The first part containing the dry solid matter (dry powder) from the first solid-gas separation device is supplied to the mixer while discharging the remaining part of the dry solid matter (dry powder) roughly separated from the system. The gas at the outlet of the solid-gas separation device is introduced into the second high-precision solid-gas separation device, and the separated dry solid (dry (Powder) is returned to the airflow transport pipe connected to the flash dryer, and a part of the separated gas at the second solid-gas separator is circulated through the airflow transport pipe for the dried solid (dry powder). (See FIG. 6).
In this case, the first solid-gas separation device is used for roughing, and it is sufficient that the first solid-gas separation device can roughly separate dry solids (dry powder). Therefore, the height of the first solid-gas separation device can be reduced. It is possible to install a mixer below the gas separation device.

In the method of the present invention, the heat source of the exhaust gas for drying introduced into the flash dryer is used as one of the combustion exhaust gas of either the gas turbine connected to the generator or the diesel engine connected to the generator. It is preferred to use parts or the entire amount. Note that it is also possible to use hot air generated by a hot air generator such as a hot air generating furnace. In these methods of the present invention, a dry solid (dry powder) discharged out of the system may be formed. The dried solid formed body is used, for example, as a fuel such as RDF (waste solid fuel) or fertilizer. In addition, it may be similarly used as a dry powder.

The wet waste drying apparatus according to the present invention comprises a raw material supply system for supplying wet waste to an air flow transport pipe, and a mixture of wet waste and dry solids (dry powder) from the air flow transport pipe. A crusher that is introduced together with the exhaust gas for drying to crush and dry the mixture, a flash dryer including a flash dryer for further flash drying, and a dry solid (dry powder) from the flash dryer. And a molding machine into which a part of the dry solid matter (dry powder) separated by the solid-gas separation device is introduced. A dry matter return pipe for supplying the remaining portion of the dry solid matter (dry powder) separated by the solid-gas separation device to the airflow conveyance pipe; Section is circulated to the airflow conveying pipe through a gas circulation pipe. Rutotomoni, is characterized in that the remainder of the solid-gas separation device outlet gas to cover the exhaust gas fan for introducing the deodorization device through the gas exhaust pipe (see Figure 1). In addition, as an example, a cyclone is used as the solid-gas separation device. In addition, as a molding machine,
As an example, a continuous molding machine having a configuration in which a plurality of cylinders rotate on the upper surface of a disk portion having a large number of small holes and a small columnar (crayon) molded product is extruded from the large number of small holes is used. Examples of the deodorizing device include a bag filter type deodorizing device, an adsorbent filling type deodorizing device, a scrubber cleaning type deodorizing device, a biological carrier filling type deodorizing device, a catalytic oxidizing deodorizing device, a high temperature oxidizing deodorizing device, and an ozone oxidizing deodorizing device. An apparatus or the like is used.

Further, the apparatus of the present invention comprises a raw material supply system for supplying wet waste to an air flow transport pipe and a mixture of wet waste and dry solids (dry powder) from the air flow transport pipe together with a drying exhaust gas. A crusher for introducing and drying the mixture while crushing the mixture, a flash dryer including a flash drying tube for further flash drying, and an air flow containing a dry solid (dry powder) from the flash dryer. A first solid-gas separation device for roughly separating a dry solid (dry powder) by introducing a dryer outlet gas, and one of the dry solids (dry powder) roughly separated by the first solid-gas separation device A molding machine into which the part is charged, a dry matter return pipe for supplying the remaining portion of the dry solid matter (dry powder) roughly separated by the first solid-gas separation device to the airflow conveying pipe, 1st gas-solid separation device outlet gas containing dry solid matter (dry powder) from the separation device A second solid-gas separation device that performs high-precision solid-gas separation by introducing a gas, and a dry material for supplying the dry solid matter (dry powder) separated by the second solid-gas separation device to the airflow conveyance pipe A return pipe and a part of the second solid-gas separator outlet gas separated by the second solid-gas separator are circulated through the gas circulation pipe to the airflow transport pipe, and the second solid-gas separator outlet gas It is characterized by including an exhaust gas fan for introducing the remainder to a deodorizing device via a gas discharge pipe (see FIG. 4). In this case, the first solid-gas separation device is used for roughing, and it is sufficient that the first solid-gas separation device can roughly separate dry solids (dry powder), so that the height of the device can be reduced.

[0013] The apparatus of the present invention further comprises a raw material supply system for supplying wet waste to the air flow transport pipe, and a mixture of the wet waste and dry solid (dry powder) from the air flow transport pipe together with the drying exhaust gas. A crusher for introducing and drying the mixture while crushing the mixture, a flash dryer including a flash drying tube for further flash drying, and an air flow containing a dry solid (dry powder) from the flash dryer. A first solid-gas separation device for introducing a part of the gas at the outlet of the dryer to perform solid-gas separation, and a molding in which a part of the dry solid matter (dry powder) separated by the first solid-gas separation device is introduced. Drying machine for supplying the remaining portion of the dried solid matter (dry powder) separated by the first solid-gas separation device to the airflow conveyance pipe, and the dried solid matter (dry powder) from the flashcurrent dryer. -Solid separation by introducing the remainder of the gas at the outlet of the flash dryer containing A second solid-gas separator provided in parallel with the first solid-gas separator and a dry solid (dry powder) separated by the second solid-gas separator are supplied to the airflow pipe. And a part of the total of the first solid-gas separator outlet gas and the second solid-gas separator outlet gas is circulated through the gas circulation pipe to the airflow transfer pipe, It is characterized by including an exhaust gas fan for introducing the remaining remainder of the gas separation device outlet gas and the second solid-gas separation device outlet gas to the deodorization device via a gas discharge pipe (see FIG. 5). In this case, the processing amount per solid-gas separation device is reduced, so that the size of each solid-gas separation device can be reduced.

In the above-mentioned apparatus of the present invention, it is preferable that the raw material supply system is provided with a porous body having a plurality of pores for extruding and subdividing wet waste (see FIG. 2). . In addition, as a porous body, a perforated plate, a mesh (net), or the like is used, for example. Further, in the above-described apparatus of the present invention, the raw material supply system cuts the porous body having a plurality of pores for extruding and subdividing the wet waste and the fragmented wet waste extruded from the porous body. It is further preferable to include a cutting device provided with a rotating cutting blade for blowing off the material (see FIG. 2). The shape of the cutting blade is, for example, a shape of a propeller, a screw, a plate, or the like. Also,
The cutting blade is configured to be rotated by a drive source such as a motor, for example. Further, in the above-described apparatus of the present invention, the raw material supply system may be configured to include a spray type spray apparatus (see FIG. 3). In these apparatuses of the present invention, it is preferable to connect the raw material supply system to an air flow transport pipe between the dried product return pipe and the flash dryer. That is, the wet waste is supplied into the pipe between the crusher of the flash dryer and the solid-gas separation device.

[0015] The apparatus of the present invention further comprises a mixer connected to a pneumatic conveying pipe, into which the wet waste and the dry solid matter (dry powder) separated by the first solid-gas separator are charged. Waste and dry solids (dry powder) mixed in the machine
And a dry solid matter (dry powder) from the airflow conveying pipe are introduced together with the exhaust gas for drying, and a crusher for crushing and drying the mixture and a flash drying pipe for further flash drying. A flash-dryer, and a first solid-gas separation device for roughly separating dry solids (dry powder) by introducing a gas-dryer outlet gas containing dry solids (dry powder) from the flash dryer. A molding machine into which a part of the dry solid (dry powder) roughly separated by the first solid-gas separator is charged, and a dry solid (dry powder) roughly separated by the first solid-gas separator A dry matter introduction pipe for introducing the remainder of the mixture into the mixer, and a first solid-gas separation device outlet gas containing a dry solid matter (dry powder) from the first solid-gas separation device are introduced to achieve high precision. A second solid-gas separation device for performing solid-gas separation, and a dry solid matter (dry powder) separated by the second solid-gas separation device; ) To the airflow transport pipe, and a portion of the second solid-gas separator outlet gas separated by the second solid-gas separator to the airflow transport pipe via a gas circulation pipe. It is characterized in that it includes a gas exhaust fan for circulating and introducing the remainder of the gas at the outlet of the second solid-gas separation device to the deodorization device via a gas discharge pipe (see FIG. 6). In this case, the first solid-gas separation device is used for roughing, and it is sufficient that the first solid-gas separation device can roughly separate dry solids (dry powder). Therefore, the height of the first solid-gas separation device can be reduced. It is possible to install a mixer below the gas separation device. In addition, as a mixer, as an example,
A mixer of a type mixing with a paddle or a screw, a mixer of a type mixing with a stirring blade, and the like are used.

In these apparatuses of the present invention, a generator is connected to a gas turbine or a diesel engine, and a part or all of the combustion exhaust gas of the gas turbine or the diesel engine is supplied to an airflow pipe as a heat source of the drying exhaust gas. It is preferable to be configured so as to be introduced into the flash dryer through the air dryer. In this case, electric power of the entire apparatus such as a flash dryer and a molding machine can be supplied by a gas turbine or a generator connected to a diesel engine. It is also possible to use hot air generated by a hot air generator such as a hot air generating furnace as a heat source of the exhaust gas for drying. Further, it is preferable to configure these devices of the present invention as compact on-vehicle devices. If the apparatus of the present invention is mounted on a vehicle as an on-board type apparatus, it goes around small and medium-sized waste disposal sites without dry treatment facilities, etc., and treats wet waste, that is, RDF (waste solid fuel). Such fuels, fertilizers and the like can be manufactured.

[0017]

FIG. 1 shows a wet waste drying apparatus according to a first embodiment of the present invention. The present embodiment is directed to processing livestock manure as an example of wet waste, in which a dry solid (dry powder) crushed and dried by a flash dryer is introduced into a cyclone to be separated into a solid and a gas, and then flash dried. Part of the outlet gas of the machine is circulated and used to carry a part of the dried powder by airflow, and is mixed with livestock manure to be supplied to a crusher of a flash dryer. This embodiment can be applied to the case of treating other wet waste such as sewage sludge. In this embodiment, a cyclone is used as the solid-gas separation device, but another solid-gas separation device can be used.

As shown in FIG. 1, livestock manure, which is a raw material for processing, is supplied from a raw material supply pipe 10 to a pneumatic transport pipe 12 by a supply pump or the like (not shown).
It is mixed with the dried powder of livestock manure that is transported in the air stream through the inside of the container. Livestock manure is supplied from raw material supply pipe 10 to airflow transport pipe 1
When it is supplied to 2, it may be finely divided and / or dispersed and mixed with a dry powder, and the details will be described later. The mixture of the livestock manure and the dry powder is supplied to the crusher 18 of the flash dryer 16 from the air transport pipe 12 together with part or all of the circulating gas for air transport and the exhaust gas from the gas turbine 14 which is the heat source for drying. Will be introduced. The dried powder that has been crushed (crushed) and dried by the crusher 18 is flowed through the flash drying tube 20 of the flash dryer 16 to be further dried, and is introduced into the cyclone 22 together with the flash dryer outlet gas. As described above, the flash dryer 16 includes the crusher 18 and the flash drying tube 20.

A part of the dry powder separated by the cyclone 22 is discharged out of the system via a valve (discharger) 24 such as a rotary valve, is formed by a forming machine 26, and is processed by a livestock manure R.
It is used as fuel (or fertilizer, etc.) such as DF. In addition,
As the molding machine 26, for example, a continuous molding machine having a configuration in which a plurality of cylinders are rotated on the upper surface of a disk portion having a large number of small holes, and a small columnar (crayon) molded product is extruded from the large number of small holes. Is used, but it is of course possible to employ a molding machine having another configuration. Further, the dry powder discharged out of the system can be used as fuel, fertilizer, or the like. The remaining portion of the dried powder separated by the cyclone 22 passes through a dry matter return pipe 30 via a valve (discharger) 28 such as a rotary valve.
Is returned to the airflow transport pipe 12, is transported by the circulating gas for airflow transport, and reaches a position of the raw material supply pipe 10 to which livestock manure is supplied, together with part or all of the combustion exhaust gas of the gas turbine 14, Here, it is mixed with livestock manure, which is a processing raw material, and introduced into the crusher 18. That is, the raw material supply pipe 10 is connected to the airflow transport pipe 12 between the crusher 18 and the dry matter return pipe 30. In addition, in the airflow conveying pipe 12, the position where the combustion exhaust gas of the gas turbine 14 is supplied may be located on the upstream side of the raw material supply pipe 10 to which livestock manure is supplied. May be.

A part of the cyclone outlet gas separated by the cyclone 22 is circulated through the gas circulation pipe 13 to the airflow conveyance pipe 12 and circulated to carry the dry powder from the dried matter return pipe 30 by airflow. Used as The remainder of the cyclone outlet gas separated in cyclone 22 is:
The gas is introduced into the deodorizing device 32 through the gas discharge pipe 15, where it is deodorized and discharged outside the system. Here, the amount of gas supplied to the deodorizing treatment is substantially equal to the sum of the amount of combustion exhaust gas from the gas turbine 14 and the amount of evaporated water, and the amount of gas introduced into the deodorizing device 32 and the amount of The amount of gas circulated is adjusted by valves 34 and 36 such as dampers. 38 is an exhaust gas fan. In addition, as a deodorizing device, for example, a bag filter type deodorizing device, an adsorbent filling type deodorizing device, a scrubber cleaning type deodorizing device, a biological carrier filling type deodorizing device, a catalyst oxidizing deodorizing device, a high temperature oxidizing deodorizing device, an ozone oxidizing type deodorizing device Are used. Further, a generator 40 is connected to the gas turbine 14 described above, and a part or all of the combustion exhaust gas of the gas turbine 14 is supplied to the flash dryer 16.
Not only is introduced as a heat source for drying into the disintegrator 18, but also the power of the entire apparatus such as the flash dryer 16 and the molding machine 26 is covered by the power supplied from the generator 40. Note that a configuration using a diesel engine instead of the gas turbine is also possible. Also, as a heat source of exhaust gas for drying,
Hot air generated by a hot air generator such as a hot air generator can also be used.

Next, in the present embodiment, livestock manure, which is a raw material, is supplied from a raw material supply pipe 10 to an airflow transport pipe 12.
A detailed example of the segmentation / dispersion processing when the data is supplied to the server will be described in detail. FIG. 2 shows an example of details in the vicinity of the confluence of the raw material supply pipe 10 and the airflow conveyance pipe 12, and livestock manure (for example, a water content of about 90 wt%) as a raw material is supplied by a supply pump or the like (not shown). Is introduced into the raw material supply pipe 10 and sent to the raw material supply unit 42. The raw material supply unit 42 is provided with a perforated plate 44 having a plurality of pores, and livestock manure is extruded downward from the perforations of the perforated plate 44 and is fragmented. The size / pitch of the perforated plate 44, the arrangement of the holes, and the like can be arbitrary. Further, as long as the raw material can be subdivided, the shape and the like of the porous body are not limited at all, and it is of course possible to use a mesh or the like.
The minced animal manure extruded from the perforated plate 44 comes into contact with a cutting blade 48 that is driven to rotate by a motor 46, is finely cut by the rotating cutting blade 48, and is dispersed in the airflow conveying pipe 12. Examples of the shape of the cutting blade 48 include, for example, a propeller-shaped one in which three rectangular blades are attached at an inclination of about 45 degrees, but other blade-shaped blades, screws, plate-like bodies, and the like. Of course, it is also possible to adopt the shape described above.

The finely divided livestock manure dispersed in the airflow conveying pipe 12 is dried powder (for example, a water content of 20 wt%) from a dry matter return pipe 30 separated by a cyclone (not shown).
) Is conveyed by hot air for drying (mixed gas of combustion exhaust gas and circulating gas, for example, about 300 ° C.), and conveyed to near the lower part of the raw material supply unit 42, where it is mixed to adjust the water content. Is introduced into a crusher (not shown). Further, a throttle member 50 may be provided in the airflow conveying pipe 12, and the flow rate of the hot air for drying can be adjusted by the throttle member 50. For example, the airflow transport is performed by the throttle member 50 inclined in the gas flow direction. It is possible to squeeze the lower portion in the pipe 12 so as to open the lower portion, and to blow off the dry powder accumulated in the lower portion in the airflow conveying pipe 12. The raw material supply unit 42 may be configured to include the above-described cutting device. However, the configuration of the cutting blade 48 and the like is omitted, and the finely divided livestock manure extruded from the perforated plate 44 is cut or the like. There may be a configuration in which the powder is supplied into the airflow conveying pipe 12 without being mixed and mixed with the dry powder.

FIG. 3 shows another example of details in the vicinity of the confluence of the raw material supply pipe 10 and the air flow conveying pipe 12, wherein livestock manure as a raw material is supplied by a supply pump or the like (not shown). 10 and sent to the raw material supply unit 42a. The raw material supply unit 42a is provided with a spray nozzle 52, and livestock manure is sprayed downward from the spray nozzle 52 having a plurality of pores. In addition, the number of the spray nozzles 52, the hole size / pitch, the hole arrangement, and the like can be arbitrary. Further, it is also possible to use a spray pipe provided with one pore of a spray nozzle. The finely divided livestock manure sprayed into the airflow conveying pipe 12 is obtained by drying the dry powder from the dried matter return pipe 30 separated by a cyclone (not shown) into hot air for drying (mixed gas of combustion exhaust gas and circulating gas). The raw material supply unit 42
It is conveyed to the vicinity of the lower part of a, where it is mixed and water-adjusted, and introduced into a crusher (not shown). Other configurations are the same as those in FIG.

FIG. 4 shows a wet waste drying apparatus according to a second embodiment of the present invention. The present embodiment is a case where livestock manure is treated as an example of wet waste, and a dry solid matter (dry powder) that has been crushed and dried by a flash dryer is roughly set in a series. And gas separation using two cyclones for high-precision and high-precision use. Part of the gas at the outlet of the flash dryer is circulated and used to carry a portion of the dried powder in a stream and supplied to the crusher of the flash dryer. It is intended to be mixed with livestock manure. As shown in FIG. 4, livestock manure, which is a raw material for processing, is supplied by a supply pump or the like (not shown).
Is supplied from the raw material supply pipe 10 to the airflow transport pipe 12, and is mixed with the dried powder of livestock manure transported in the airflow transport pipe 12 by airflow. Livestock manure is raw material supply piping 10
When supplied to the airflow conveying pipe 12 from the
And may be dispersed and mixed with a dry powder. This is the same as in the first embodiment (FIGS. 2 and 3) described above.

The mixture of the livestock manure and the dried powder is supplied from the airflow transport pipe 12 to the airflow dryer 16 together with the circulating gas for airflow transport and part or all of the combustion exhaust gas from the gas turbine 14 which is a heat source for drying. It is introduced into the crusher 18.
The dried powder crushed (crushed) and dried by the crusher 18 is
The gas is conveyed through the flash drying tube 20 of the flash dryer 16 to be further dried, and is introduced into the first cyclone 54 for roughing together with the gas from the flash dryer. A part of the dry powder roughly separated in the first cyclone 54 is discharged out of the system via a valve (discharger) 24 such as a rotary valve, and is formed into a molding machine 26.
Fuel (or fertilizer, etc.) such as livestock dung RDF
Used as Further, the dry powder discharged out of the system can be used as fuel, fertilizer, or the like. The remaining portion of the dry powder roughly separated by the first cyclone 54 passes through a dry matter return pipe 3 via a valve (discharger) 28 such as a rotary valve.
From 0, the air is returned to the airflow transport pipe 12 and is transported by the airflow transporting circulating gas. The first cyclone 54 is used for roughing, and it is sufficient that the dry powder can be roughly separated, so that the height of the apparatus can be reduced.

On the other hand, the first cyclone outlet gas containing the dry powder from the first cyclone 54 is introduced into the second cyclone 56 with high precision, and the dry powder separated by the second cyclone 56 is supplied to a rotary valve or the like. Is returned from the dry matter return pipe 60 to the airflow transport pipe 12 via the valve (discharger) 58, and is transported by the airflow transporting circulating gas. The dry powder returned from the dry matter return pipes 30 and 60 to the airflow transport pipe 12 flows along with a part or all of the combustion exhaust gas from the gas turbine 14 to the position of the raw material supply pipe 10 to which livestock manure is supplied. It is conveyed and mixed with livestock manure, which is a raw material for processing, and introduced into the crusher 18.
That is, the raw material supply pipe 10 is connected to the airflow transport pipe 12 between the crusher 18 and the dry matter return pipe 30. A part of the second cyclone outlet gas separated by the second cyclone 56 is circulated through the gas circulation pipe 13 to the airflow transport pipe 12, and the dry powder from the dry matter return pipes 30 and 60 is transported by airflow. It is used as a circulating gas. The remaining part of the second cyclone outlet gas separated by the second cyclone 56 passes through the gas discharge pipe 15 and passes through the deodorizing device 3.
2 where it is deodorized and discharged out of the system. Other configurations and operations are the same as those of the first embodiment.

FIG. 5 shows a wet waste drying apparatus according to a third embodiment of the present invention. The present embodiment is a case where livestock manure is treated as an example of wet waste, in which two dry solids (dry powders) crushed and dried by a flash dryer are installed in parallel. Solid-gas separation using a cyclone, a part of the dry gas was circulated and part of the dried powder was circulated, and a part of the dried powder was conveyed by air and mixed with livestock manure to be supplied to the crusher of the flash dryer. Things. As shown in FIG. 5, livestock manure as a raw material for processing is supplied to a raw material supply pipe 1 by a supply pump or the like (not shown).
0 is supplied to the airflow transport pipe 12 and the airflow transport pipe 12
It is mixed with the dry powder of livestock manure that is transported in the airflow. Livestock manure is supplied from raw material supply pipe 10 to airflow transport pipe 1
When supplied to 2, the mixture may be subjected to a fragmentation or / and dispersion treatment and mixed with a dry powder. This is the same as in the first embodiment (FIGS. 2 and 3) described above.

The mixture of the livestock manure and the dried powder is supplied from the airflow transport pipe 12 to the airflow dryer 16 together with the circulating gas for airflow transport and a part or all of the combustion exhaust gas from the gas turbine 14 which is a heat source for drying. It is introduced into the crusher 18.
The dried powder crushed (crushed) and dried by the crusher 18 is
The first cyclone 54a and the second cyclone 56a installed in parallel with the flash dryer outlet gas are transported through the flash dryer tube 20 of the flash dryer 16 and further dried.
Respectively. In this case, the first cyclone 54
a, the second cyclone 56a has the same processing capacity, a part of the flash dryer outlet gas containing the dry powder is introduced into the first cyclone 54a, and the remaining portion of the flash dryer outlet gas containing the dry powder is It is introduced into the second cyclone 56a.
In the present embodiment, since the processing amount per cyclone can be reduced, the size of each cyclone can be small.

A part of the dry powder separated by the first cyclone 54a is discharged out of the system via a valve (discharger) 24 such as a rotary valve, is formed by a forming machine 26, and is processed by livestock dung RDF. It is used as fuel (or fertilizer, etc.).
Further, the dry powder discharged out of the system can be used as fuel, fertilizer, or the like. The remaining portion of the dried powder separated in the first cyclone 54a is returned from the dried product return pipe 30 to the airflow transport pipe 12 via a valve (discharger) 28 such as a rotary valve, and is supplied with a circulating gas for airflow transport. The air is conveyed. The dry powder separated by the second cyclone 56a is returned from the dry matter return pipe 60 to the airflow transfer pipe 12 via a valve (discharger) 58 such as a rotary valve,
The air is conveyed by the circulating gas for air flow conveyance. The dry powder returned from the dry matter return pipes 30 and 60 to the airflow transport pipe 12 flows along with a part or all of the combustion exhaust gas from the gas turbine 14 to the position of the raw material supply pipe 10 to which livestock manure is supplied. It is conveyed and mixed with livestock manure, which is a raw material for processing, and introduced into the crusher 18. That is, the raw material supply pipe 10 is connected to the airflow transport pipe 12 between the crusher 18 and the dry matter return pipe 30.

On the other hand, the first cyclone outlet gas separated by the first cyclone 54a and the second cyclone outlet gas separated by the second cyclone 56a are both sent to the exhaust gas fan 38, and a part of these cyclone outlet gases Is circulated through the gas circulation pipe 13 to the airflow transport pipe 12 and is used as a circulating gas for airflow transport of the dry powder from the dry matter return pipes 30 and 60. The remainder of these cyclone outlet gases is introduced into the deodorizer 32 through the gas discharge pipe 15, where it is deodorized and discharged outside the system. Other configurations and operations are the same as those of the first embodiment.

FIG. 6 shows a wet waste drying apparatus according to a fourth embodiment of the present invention. In the present embodiment, when it is necessary to install a mixer based on the properties of wet waste, livestock manure is treated as an example of wet waste, and is crushed and dried by a flash dryer. The dried solid material (dry powder) is separated into solid and gas by using two cyclones for roughing and high precision installed in series, and a part of the gas at the outlet of the flash dryer is recycled. A part of the dry powder is transported by airflow and mixed with a mixture of livestock manure and dry powder to be supplied to a crusher of a flash dryer. As shown in FIG. 6, livestock manure, which is a raw material for the treatment, is fed into a mixer 64 from a raw material supply pipe 62 by a supply pump or the like (not shown). A part of the dry powder from the first cyclone 54b, which will be described later, is put into the mixer 64, and the livestock manure is mixed and adjusted in moisture here and supplied to the airflow conveying pipe 12. The mixture supplied from the mixer 64 to the airflow transport pipe 12 through the mixture supply pipe 66 is mixed with the dry powder from the second cyclone 56b which is transported in the airflow transport pipe 12 by airflow. In addition, as the mixer 64, for example, a mixer of a type of mixing with a paddle or a screw, a mixer of a type of mixing with a stirring blade, or the like is used, but it is of course possible to employ a mixer of another configuration. is there.

The mixture of the livestock manure and the dried powder is supplied from the airflow transport pipe 12 to the airflow dryer 16 together with the circulating gas for airflow transport and part or all of the combustion exhaust gas from the gas turbine 14 which is a heat source for drying. It is introduced into the crusher 18.
The dried powder crushed (crushed) and dried by the crusher 18 is
The gas is conveyed through the flash drying tube 20 of the flash dryer 16 to be further dried, and is introduced into the first cyclone 54b for roughing together with the gas from the flash dryer. First cyclone 54
A part of the dry powder roughly separated in b is discharged out of the system via a valve (discharger) 24 such as a rotary valve, is formed by a forming machine 26, and is used as a fuel (or a livestock dung RDF or the like). Used as fertilizers). Further, the dry powder discharged out of the system can be used as fuel, fertilizer, or the like. The remaining portion of the dry powder roughly separated in the first cyclone 54b is fed into a mixer 64 from a dry matter introduction pipe 70 via a valve (discharger) 68 such as a rotary valve, and mixed with livestock manure. This first cyclone 54b is for roughing,
Since it is sufficient that the dry powder can be roughly separated, the height of the apparatus can be reduced, and as a result, the mixer 64 can be installed below the first cyclone 54b.

On the other hand, the first cyclone outlet gas containing the dry powder from the first cyclone 54b is introduced into the second cyclone 56b with high precision, and the dry powder separated by the second cyclone 56b is supplied to a rotary valve or the like. Valve (discharge machine) 5
8 to the air flow transport pipe 12 from the dry matter return pipe 60
And is transported by airflow with circulating gas for airflow transport,
Along with part or all of the flue gas from the gas turbine 14, the mixture reaches the position of the mixture supply pipe 66 to which the mixture from the mixer 64 is supplied, where it is mixed with the mixture and introduced into the crusher 18. Also, the second cyclone 56b
A part of the second cyclone outlet gas separated in the above is circulated through the gas circulation pipe 13 to the airflow conveyance pipe 12, and is used as a circulation gas for airflow conveying the dry powder from the dried matter return pipe 60. The remainder of the second cyclone outlet gas separated by the second cyclone 56b is introduced into the deodorizer 32 through the gas discharge pipe 15, where it is deodorized and discharged outside the system. Other configurations and operations are described in the first embodiment,
This is the same as in the second and third embodiments.

The apparatus of the present invention as described in the first, second, third, and fourth embodiments can be configured as a compact vehicle-mounted device, and can be mounted on a vehicle-mounted livestock manure processing device or a vehicle-mounted sewage system. It can be put to practical use as a sludge drying and forming device. If the apparatus of the present invention is mounted on a vehicle as an on-board type device, it circulates through small and medium-sized waste treatment plants that do not have a drying treatment facility, and performs drying treatment of wet waste such as livestock manure and sewage sludge, that is, Fuel such as RDF (waste solid fuel), fertilizer, and the like can be manufactured individually, and it is possible to meet the needs of small and medium-sized waste treatment plants. Further, the device of the present invention can easily clear the height limitation of the vehicle even when the device is loaded on a vehicle as a vehicle-mounted device. The second, third, and fourth embodiments of the present invention are described.
In the embodiment, the case where two cyclones are installed is described. However, in the present invention, it is of course possible to adopt a configuration in which three or more cyclones, that is, three or more solid-gas separation devices are installed.

[0035]

As described above, the present invention has the following effects. (1) Drainage of wet waste such as livestock manure and sewage sludge is performed by a flash dryer, and the transport of dry solids (dry powder) in the device is performed by circulating a part of the gas at the outlet of the flash dryer. By transporting, a system that does not use a mechanical transport device for solids can be provided. (2) A large amount of air is required when dry solids are transported by air (air transport). However, since a part of the gas at the outlet of the flash dryer is circulated and transported by air, the amount of gas to be deodorized is Does not increase. (3) The wet waste is crushed and dried by a flash dryer, and when the dry solid (dry powder) is separated by a solid-gas separator such as a cyclone, the dry powder from the solid-gas separator is mechanically separated. It is possible to dramatically reduce the size of the entire system by preventing the installation position of the solid-gas separation device from being raised without being transported to a high place by the transport device. (4) It is not necessary to provide a special mixing and feeding device for mixing the wet waste with the dry solid matter before supplying the wet waste to the flash dryer crusher, and the wet waste having a high moisture content is not required. Can also respond. (5) Since no special mixing and feeding device or mechanical transport device is used for mixing and supplying the dry solid matter (dry powder) and the wet waste to be supplied, the required power can be greatly reduced. (6) A configuration in which a plurality of solid-gas separation devices are installed in parallel when wet waste is crushed and dried by a flash dryer and a dry solid material (dry powder) is separated by a solid-gas separation device such as a cyclone. By doing so, the throughput per solid-gas separation device is reduced, so that the size of each solid-gas separation device can be reduced, and the overall device height can be reduced. (7) If it is necessary to install a mixer based on the properties of the wet waste, the wet waste is crushed and dried with a flash dryer, and the dried solid (dry powder) is separated with a solid-gas separator such as a cyclone. When the solid-gas separator is separated, two solid-gas separators, one for roughing and one for high accuracy, are installed in series, and the height of the solid-gas separating device for roughing is reduced to reduce The mixer can be installed below the solid-gas separation device, so that the dry powder from the solid-gas separation device is not transported to a high place by a mechanical transport device, and the installation position of the solid-gas separation device is not raised. ,
The whole system can be dramatically reduced in size. (8) The device of the present invention can be configured as a compact vehicle-mounted device, and can be put to practical use as a vehicle-mounted livestock manure treatment device, a vehicle-mounted sewage sludge drying and forming device, and the like.

[Brief description of the drawings]

FIG. 1 is a systematic schematic configuration diagram showing a wet waste drying apparatus according to a first embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing an example of a raw material supply system in the configuration shown in FIG.

FIG. 3 is a schematic configuration diagram showing another example of the raw material supply system in the configuration shown in FIG.

FIG. 4 is a systematic schematic configuration diagram showing a wet waste drying apparatus according to a second embodiment of the present invention.

FIG. 5 is a systematic schematic configuration diagram showing a wet waste drying apparatus according to a third embodiment of the present invention.

FIG. 6 is a systematic schematic configuration diagram showing a wet waste drying apparatus according to a fourth embodiment of the present invention.

[Explanation of symbols]

10, 62 Raw material supply pipe 12 Air flow transfer pipe 13 Gas circulation pipe 14 Gas turbine 15 Gas discharge pipe 16 Air flow dryer 18 Crusher 20 Air flow drying pipe 22 Cyclone 24, 28, 58, 68 Valve (discharger) such as rotary valve 26 Molding machine 30, 60 Dry matter return pipe 32 Deodorizing device 34, 36 Valve of damper 38 Exhaust gas fan 40 Generator 42, 42a Raw material supply part 44 Perforated plate 46 Motor 48 Cutting blade 50 Throttle member 52 Spray nozzle 54, 54a, 54b 1st cyclone 56, 56a, 56b 2nd cyclone 64 Mixer 66 Mixture supply piping 70 Dry material introduction piping

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[Procedure amendment]

[Submission date] June 18, 1999 (1999.6.1
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

In order to achieve the above object, a method for drying wet waste according to the present invention is directed to a dry solid (dry powder) obtained by separating wet waste by a solid-gas separator.
The mixture is supplied to a gas flow pipe, and the mixture flows through the gas flow pipe.
Into the flash dryer together with the exhaust gas for drying consisting of the circulating gas and the high-temperature gas that is the heat source for drying, crushed and dried, and the outlet of the flash dryer containing dry solids (dry powder) The gas is introduced into the solid-gas separation device, a part of the separated dry solid (dry powder) is discharged out of the system, and the remainder of the separated dry solid (dry powder) is connected to a flash dryer. Is returned to the airflow conveying pipe to be performed, and a portion of the separated gas-solid separation device outlet gas is circulated to the airflow conveying pipe of the dry solid (dry powder) as a circulation gas for airflow conveyance. (See FIG. 1). In addition, as a solid-gas separation device,
As an example, a cyclone is used. Further, the remaining part of the separated gas at the outlet of the solid-gas separator is deodorized and discharged out of the system.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

Further, the method of the present invention comprises the steps of: separating wet waste into a portion of a dry solid matter (dry powder) separated by a first solid-gas separation device and a dry solid matter separated by a second solid-gas separation device; The product (dry powder) is supplied to a gas flow conveying pipe, and this mixture is a part of the outlet gas of the second solid-gas separation device flowing through the gas flow conveying pipe.
Circulating gas for air flow and high-temperature gas as a heat source for drying.
With drying gas consisting of the scan is introduced into a flash dryer was pulverized and dried, and introduced into a dry solid flash dryer outlet gas containing (dry powder) in the first solid-gas separation device for taking crude,
A part of the roughly separated dry solid (dry powder) is discharged to the outside of the system, and the remaining part of the roughly separated dry solid (dry powder) is returned to an air flow pipe connected to a flash dryer. ,
The first solid-gas separator outlet gas containing the dried solid (dry powder) from the first solid-gas separator is introduced into the second solid-gas separator with high precision, and the separated dry solid (dry powder) is introduced. Body) is returned to the pneumatic conveying pipe connected to the flash dryer, and a part of the separated gas at the second solid-gas separation device is circulated to the circulating gas for the pneumatic conveying.
The dry solid as scan circulating the pneumatic conveying pipe (dry powder) is characterized in (see FIG. 4). In this case, the first solid-gas separation device is used for roughing, and it is sufficient that the first solid-gas separation device can roughly separate dry solids (dry powder), so that the height of the device can be reduced.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007] The method of the present invention further comprises the steps of: separating the wet waste into a portion of the dry solid (dry powder) separated by the first solid-gas separator and the dry solid separated by the second solid-gas separator. (Dry powder) is supplied to the airflow transport pipe, and the mixture is supplied to the airflow transport pipe through the circulation gas for airflow transport and the heat for drying.
The gas is introduced into the flash dryer together with the drying exhaust gas composed of the high-temperature gas, which is the source, and is crushed and dried. A part of the outlet gas of the flash dryer containing dry solids (dry powder) is supplied to the first solid-gas separator. A part of the separated dry solids (dry powder) is discharged out of the system, and the remaining part of the separated dry solids (dry powder) is returned to the air flow transport pipe connected to the flash dryer. Then, the remaining part of the gas at the outlet of the flash dryer containing the dry solid (dry powder) is introduced into the second solid-gas separator in parallel with the first solid-gas separator, and the separated dry solid ( (The dried powder) is returned to the airflow conveying pipe connected to the flash dryer, and a part of the total of the separated gas at the first solid-gas separator and the second gas at the second solid-gas separator is circulated for airflow. gas
The method is characterized in that the dried solid (dry powder) is circulated through an airflow conveying pipe (see FIG. 5). In this case, the amount of processing per solid-gas separation device decreases,
The size of each solid-gas separation device can be reduced.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

[0009] The method of the present invention further comprises the steps of:
After supplying the dry solid matter (dry powder) separated by the solid-gas separation device to a mixer into which the wet solid matter is added, and mixing the wet waste with the dry solid matter (dry powder) from the first solid-gas separation device, This mixture is supplied to an airflow pipe for dry solid matter (dry powder) separated by the second solid-gas separator, and the mixture is partly discharged from the second solid-gas separator at the outlet of the second solid-gas separator. Is
Circulating gas for air transport and high-temperature gas as a heat source for drying
Was introduced into a flash dryer with drying gas consisting by crushing and drying, was introduced dry solid flash dryer outlet gas containing (dry powder) in the first solid-gas separation device for taking crude, crude A part of the separated dry solid (dry powder) is discharged to the outside of the system, and the remaining part of the roughly separated dry solid (dry powder) is supplied to the mixer, and the first solid-gas separator is used. The first solid-gas separator outlet gas containing the dried solid matter (dry powder) is introduced into a high-precision second solid-gas separator, and the separated dry solid matter (dry powder) is supplied to a flash dryer. It is returned to the connected airflow transport pipe, and a part of the separated second solid-gas separation device outlet gas is circulated through the dry solid matter (dry powder) airflow transport pipe as a circulating gas for airflow transport. (See FIG. 6). In this case, the first solid-gas separation device is used for roughing, and it is sufficient that the first solid-gas separation device can roughly separate dry solids (dry powder). Therefore, the height of the first solid-gas separation device can be reduced. It is possible to install a mixer below the gas separation device.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

The wet waste drying apparatus according to the present invention comprises a raw material supply system for supplying wet waste to an air flow transport pipe, and a mixture of wet waste and dry solids (dry powder) from the air flow transport pipe. Gas flow that is part of the gas at the outlet of the solid-gas separator
From circulating gas for transportation and high-temperature gas that is a heat source for drying
Introduced together with drying gas consisting, a disintegrator drying while crushing the mixture, and flash dryer consisting of further and flash drying tube for flash drying, dry solids from the flash dryer (dry powder And a molding machine into which a part of the dry solids (dry powder) separated by the solid-gas separator is introduced. A dry matter return pipe for supplying the remaining portion of the dry solid matter (dry powder) separated by the solid-gas separation device to the airflow conveyance pipe; An exhaust gas fan for circulating a part of the gas as a circulating gas for air flow conveyance through the gas circulation pipe to the air flow conveyance pipe, and introducing the remainder of the gas discharged from the solid-gas separation device to the deodorizer through a gas discharge pipe; It is characterized by including Reference 1). In addition, as an example, a cyclone is used as the solid-gas separation device. As an example of the molding machine, as an example, a plurality of cylindrical bodies are rotated on the upper surface of a disk portion having a large number of small holes, and a small columnar (crayon-shaped) molded product is extruded from the large number of small holes. A molding machine or the like is used. Examples of the deodorizing device include a bag filter type deodorizing device, an adsorbent filling type deodorizing device, a scrubber cleaning type deodorizing device, a biological carrier filling type deodorizing device, a catalytic oxidizing deodorizing device, a high temperature oxidizing deodorizing device, and an ozone oxidizing deodorizing device. An apparatus or the like is used.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

[0012] The apparatus of the present invention further comprises a raw material supply system for supplying wet waste to the airflow transport pipe, and a mixture of wet waste and dry solid matter (dry powder) from the airflow transport pipe .
2 Circulation for transporting airflow that is a part of gas at the outlet of solid-gas separator
A crusher that is introduced together with a gas and a drying exhaust gas composed of a high-temperature gas that is a heat source for drying and crushes the mixture while drying, and a flash dryer including a flash drying tube for further flash drying, A first solid-gas separation device for roughly separating dry solids (dry powder) by introducing a flash dryer outlet gas containing dry solids (dry powder) from a flash dryer; Dry solids (dry powder) roughly separated by the device
A molding machine into which a portion of the dry solids (dry powder) roughly separated by the first solid-gas separation device is supplied to the airflow conveying pipe; A second solid-gas separation device which performs high-precision solid-gas separation by introducing a first solid-gas separation device outlet gas containing a dry solid (dry powder) from the solid-gas separation device, and a second solid-gas separation device And a part of the outlet gas of the second solid-gas separation device separated by the second solid-gas separation device, for supplying the dried solid material (dry powder) separated in the above to the airflow conveyance piping. Circulating gas for airflow transport
And a waste gas fan for introducing the remainder of the second solid-gas separation device outlet gas into the deodorizer through a gas discharge pipe while circulating the gas through the gas circulation pipe to the airflow conveyance pipe. (See FIG. 4). In this case, the first solid-gas separation device is used for roughing, and it is sufficient that the first solid-gas separation device can roughly separate dry solids (dry powder), so that the height of the device can be reduced.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

Further, the apparatus of the present invention, the gas and raw material supply system for supplying the wet waste pneumatic conveying pipe, wet waste and dry solids from pneumatic conveying pipe and water (dry powder)
Circulating gas for stream transport and hot gas as heat source for drying?
And a flash- dryer comprising a flash-drying tube for flash-drying the mixture, and a dry solid (drying) from the flash-dryer. A first solid-gas separation device that performs solid-gas separation by introducing a part of an outlet gas of a flash dryer containing
The molding machine into which a part of the dry solid matter (dry powder) separated by the solid-gas separation device is introduced, and the rest of the dry solid matter (dry powder) separated by the first solid-gas separation device A first solid-gas for introducing a dry matter return pipe for supplying to a conveying pipe and a remaining gas of a flash dryer outlet gas containing a dry solid matter (dry powder) from the flash dryer to perform a solid-gas separation; A second solid-gas separation device provided in parallel with the separation device;
A dry matter return pipe for supplying the dry solid matter (dry powder) separated by the solid-gas separation apparatus to the airflow conveyance pipe; and a first solid-gas separation apparatus outlet gas and a second solid-gas separation apparatus outlet gas. A part of the total is circulated through the gas flow pipe as a circulating gas for air flow transport through the gas flow pipe, and the remaining gas of the first gas-gas separator outlet gas and the second gas-gas separator outlet gas is used as gas. An exhaust gas fan for introducing the exhaust gas into the deodorizing device via a discharge pipe is provided (see FIG. 5). In this case, the processing amount per solid-gas separation device is reduced, so that the size of each solid-gas separation device can be reduced.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction contents]

[0015] The apparatus of the present invention further comprises a mixer connected to a pneumatic conveying pipe, into which the wet waste and the dry solid matter (dry powder) separated by the first solid-gas separator are charged. Waste and dry solids (dry powder) mixed in the machine
A mixture of air and dry solid matter (dry powder) from the airflow transport pipe is used for airflow transport, which is part of the outlet gas of the second solid-gas separator.
A crusher for introducing the circulating gas and a drying exhaust gas composed of a high-temperature gas that is a heat source for drying to crush and dry the mixture, and a flash drying tube for further flash drying. And a first solid-gas separation device for roughly separating dry solids (dry powder) by introducing a gas from the flash dryer to the outlet of a flash dryer containing dry solids (dry powder) And a molding machine into which a part of the dry solid (dry powder) roughly separated by the first solid-gas separation device is charged, and a dry solid (dry powder) roughly separated by the first solid-gas separation device A) a dry matter introduction pipe for introducing the remainder of the mixture into the mixer, and a first solid-gas separation device outlet gas containing a dry solid matter (dry powder) from the first solid-gas separation device. A second solid-gas separation device for performing solid-gas separation of the dried solids (dry powder) separated by the second solid-gas separation device A dried product return pipe to be supplied to the pneumatic conveying pipe, a portion of the second solid-gas separation device outlet gas separated by the second solid-gas separation device and the circulating gas for pneumatic conveying
And a waste gas fan for introducing the remainder of the second solid-gas separation device outlet gas into the deodorizer through a gas discharge pipe while circulating the gas through the gas circulation pipe to the airflow conveyance pipe. (See FIG. 6). In this case, the first solid-gas separation device is used for roughing, and it is sufficient that the first solid-gas separation device can roughly separate dry solids (dry powder). Therefore, the height of the first solid-gas separation device can be reduced. It is possible to install a mixer below the gas separation device. As the mixer, for example, a mixer of a type mixing with a paddle or a screw, a mixer of a type mixing with a stirring blade, and the like are used.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masaharu Sasakura 1-1, Kawasaki-cho, Akashi-shi, Hyogo Prefecture Kawasaki Heavy Industries, Ltd. Inside the Akashi Plant (72) Inventor Hiromasa Kusuda 1-1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries Inside the Akashi Factory (72) Inventor Kunio Fukuyama 1-1-3 Higashikawasakicho, Chuo-ku, Kobe Kawasaki Heavy Industries, Ltd.Kobe Head Office (72) Inventor Masakazu Sawai 1-1-3, Higashikawasakicho, Chuo-ku, Kobe-shi No.F-term (reference) Kawasaki Heavy Industries, Ltd.Kobe head office AB01 BA09 BA12 BB03 CB01

Claims (19)

[Claims]
1. A wet waste is supplied to an air flow transport pipe for dry solids separated by a solid-gas separator, and the mixture is introduced into a flash dryer together with exhaust gas for drying flowing in the air flow transport pipe to be crushed.・ Dry and introduce the gas at the outlet of the flash dryer containing the dried solids into the solid-gas separator, discharge a part of the separated dried solids out of the system, and flash-dry the remainder of the separated dried solids A method of drying wet waste, comprising returning the gas to an air flow pipe connected to the apparatus and circulating a part of the separated gas at the solid-gas separation device to the air flow pipe for the dried solids.
2. The wet waste is supplied to a part of the dry solid matter separated by the first solid-gas separation device and the airflow conveyance pipe of the dry solid matter separated by the second solid-gas separation device, and the mixture is mixed. Is introduced into the flash dryer together with the exhaust gas for drying flowing in the airflow transport pipe to be crushed and dried, and the outlet gas of the flash dryer containing the dried solid is introduced into the first solid-gas separator for roughing,
A part of the roughly separated dry solid is discharged to the outside of the system, and the remaining part of the roughly separated dry solid is returned to an air stream conveying pipe connected to a flash dryer to be dried from the first solid-gas separator. The first solid-gas separator outlet gas containing solids is introduced into the high-precision second solid-gas separator, and the separated dry solids are returned to the airflow pipe connected to the flash dryer to be separated. A method for drying wet solid waste, comprising circulating a part of the outlet gas of the second solid-gas separation device through the airflow conveying pipe for the dry solid.
3. The wet waste is supplied to a part of a dry solid matter separated by a first solid-gas separation device and an airflow conveying pipe of the dry solid matter separated by a second solid-gas separation device, and the mixture is mixed. Is introduced into a flash dryer together with the drying exhaust gas flowing through the airflow conveying pipe to be crushed and dried, and a part of the flashdryer outlet gas containing dried solids is introduced into the first solid-gas separation device to be separated. A part of the dried solids is discharged out of the system, and the remainder of the separated dry solids is returned to the airflow pipe connected to the flash dryer, and the remaining gas of the flash dryer outlet gas containing the dried solids is removed. The first solid-gas separation device is introduced into the second solid-gas separation device in parallel with the first solid-gas separation device, and the separated dry solid matter is returned to the airflow conveying pipe connected to the flashdryer, and the separated first solid-gas separation device is separated. Part of the sum of the outlet gas and the outlet gas of the second solid-gas separator is the dry solid matter. A method for drying wet waste, comprising circulating air through an airflow conveying pipe.
4. The method according to claim 1, wherein the wet waste is passed through a porous body having a plurality of pores, extruded from the porous body and fragmented, and then the fragmented wet waste is supplied to a dry solid airflow conveying pipe. Item 4. The method for drying wet waste according to item 1, 2 or 3.
5. The wet waste is passed through a porous body having a plurality of pores, extruded from the porous body, cut with a rotating cutting blade and dispersed to obtain a finely divided wet waste. The method for drying wet waste according to any one of claims 1 to 4, wherein the wet waste is supplied to an air flow conveying pipe for the waste.
6. The method for drying wet waste according to claim 1, wherein the wet waste is introduced into a spray pipe having a spray nozzle and sprayed onto an air flow transport pipe for the dry solid.
7. The wet waste is supplied to a mixer into which the dry solid separated by the first solid-gas separator is charged, and the wet waste is mixed with the dry solid from the first solid-gas separator. rear,
This mixture is supplied to an airflow conveying pipe of the dried solid separated by the second solid-gas separation device, and the mixture is introduced into an airflow dryer together with exhaust gas for drying flowing in the airflow conveying pipe to be crushed and dried, The gas at the outlet of the flash dryer containing the dried solids is introduced into the first solid-gas separator for roughing, a part of the dried solids roughly separated is discharged out of the system, and the dried solids are roughly separated. The remaining portion is supplied to the mixer, and the first solid-gas separation device outlet gas containing the dried solids from the first solid-gas separation device is introduced into the high-accuracy second solid-gas separation device. Returning the material to an airflow pipe connected to a flash dryer, and circulating a part of the separated outlet gas of the second solid-gas separator to the airflow pipe of the dry solid material. Drying treatment method.
8. The heat source of the exhaust gas for drying introduced into the flash dryer is a part or all of the exhaust gas from any of a gas turbine connected to the generator and a diesel engine connected to the generator. Item 8. The method for drying wet waste according to any one of Items 1 to 7.
9. The method for drying wet waste according to claim 1, wherein the dry solid discharged from the system is formed.
10. A raw material supply system for supplying wet waste to a pneumatic conveying pipe, and introducing a mixture of wet waste and dry solids from the pneumatic conveying pipe together with a drying exhaust gas to pulverize the mixture. A flash dryer comprising a crusher for drying and a flash drying tube for further flash drying, and a solid-gas separation for introducing a gas from a flash dryer containing a dry solid matter from the flash dryer to perform solid-gas separation. A molding machine into which a part of the dry solids separated by the solid-gas separation device is introduced; and a dry product for supplying the remaining dry solids separated by the solid-gas separation device to the airflow conveying pipe. A return pipe, and a part of the gas-solid separation device outlet gas separated by the solid-gas separation device is circulated through the gas flow piping through the gas circulation pipe, and the remaining part of the solid-gas separation device outlet gas is connected to the gas discharge pipe. Into the deodorizer via Drying apparatus of the wet waste, characterized in that it comprises the exhaust gas fan for.
11. A raw material supply system for supplying wet waste to a pneumatic conveying pipe, and introducing a mixture of the wet waste and dry solids from the pneumatic conveying pipe together with a drying exhaust gas to pulverize the mixture. A flash dryer comprising a crusher for drying and a flash drying tube for further flash drying, and a flash dryer outlet gas containing dry solids from the flash dryer are introduced to roughly separate dry solids. A first solid-gas separator, a molding machine into which a part of the dry solid roughly separated by the first solid-gas separator is charged, and a remaining part of the dry solid roughly separated by the first solid-gas separator. A second pipe for supplying high-precision solid-gas separation by introducing a dry matter return pipe for supplying to the airflow conveying pipe and a first solid-gas separation apparatus outlet gas containing a dry solid matter from the first solid-gas separation apparatus; A solid-gas separator and a dried solid separated by the second solid-gas separator. A dried product return pipe for supplying a shaped product to the airflow transport pipe; and a part of the second solid-gas separator outlet gas separated by the second solid-gas separator, through the gas circulation pipe to the airflow transport pipe And a waste gas fan for circulating the remaining gas of the second solid-gas separation device through a gas discharge pipe to the deodorization device.
12. A raw material supply system for supplying wet waste to an air flow transport pipe, and introducing a mixture of wet waste and dry solids from the air flow transport pipe together with a drying exhaust gas to crush the mixture. A flash dryer comprising a crusher for drying and a flash drying tube for further flash drying, and a part of a flash dryer outlet gas containing dried solids from the flash dryer are introduced to perform solid-gas separation. A first solid-gas separation device, a molding machine into which a portion of the dry solid separated by the first solid-gas separation device is introduced, and a remaining portion of the dry solid separated by the first solid-gas separation A dry matter return pipe for supplying to a conveying pipe, and in parallel with a first solid-gas separation device for introducing a remaining part of a gas-dryer outlet gas containing a dry solid matter from a flash-dryer to perform solid-gas separation. A second solid-gas separator provided, and a second solid-gas separator A dry matter return pipe for supplying the dried solid matter separated in the above to the airflow conveyance pipe, and a gas circulation pipe for a part of the total of the first solid-gas separation device outlet gas and the second solid-gas separation device outlet gas. And an exhaust gas fan for introducing the remainder of the sum of the first gas-solid separation device outlet gas and the second solid-gas separation device outlet gas to the deodorizer through a gas discharge pipe. An apparatus for drying and processing wet waste, comprising:
13. The drying of wet waste according to claim 10, 11, or 12, wherein the raw material supply system is provided with a porous body having a plurality of pores for extruding and subdividing the wet waste. Processing equipment.
14. A raw material supply system, comprising: a porous body having a plurality of pores for extruding and fragmenting wet waste;
The wet waste drying treatment apparatus according to any one of claims 10 to 13, further comprising a cutting device having a rotating cutting blade for cutting and blowing off the fragmented wet waste extruded from the porous body.
15. The wet waste drying apparatus according to claim 10, wherein the raw material supply system includes a spray type spray apparatus.
16. The wet waste drying processing apparatus according to claim 10, wherein the raw material supply system is connected to an air flow transport pipe between the dried product return pipe and the flash dryer.
17. A mixer connected to a pneumatic conveying pipe, into which the wet waste and the dry solid separated by the first solid-gas separator are charged, and a wet waste and dry solid mixed by the mixer. Flash dryer comprising a crusher that introduces a mixture of the material and the dried solid matter from the airflow conveying pipe together with the exhaust gas for drying and crushes the mixture while drying, and a flashflow tube for further flashflow drying A first solid-gas separation device that introduces a gas-dryer outlet gas containing a dry solid from the flash dryer to roughly separate dry solids; and a dry solid roughly separated by the first solid-gas separation device. A molding machine into which a part of the material is charged, a dry material charging pipe for charging the remainder of the dry solid material roughly separated by the first solid-gas separation device into the mixer, and a first solid-gas separation device. Gas at the outlet of the first solid-gas separation device containing the dried solid A second solid-gas separation device for performing accurate solid-gas separation, a dry matter return pipe for supplying the dry solid matter separated by the second solid-gas separation apparatus to the airflow conveyance pipe, and a second solid-gas separation apparatus A part of the second solid-gas separation device outlet gas separated in the above is circulated through the gas flow pipe through a gas circulation pipe, and the remaining part of the second solid-gas separation apparatus outlet gas is deodorized through a gas discharge pipe. And an exhaust gas fan for introducing the waste gas into the wet waste.
18. A generator is connected to the gas turbine or the diesel engine, and part or all of the combustion exhaust gas of the gas turbine or the diesel engine is supplied to the flash dryer through the airflow pipe as a heat source of the drying exhaust gas. The wet waste drying apparatus according to any one of claims 10 to 17, which is introduced.
19. An apparatus for drying wet waste, wherein the apparatus according to claim 10 is configured as a vehicle-mounted apparatus.
JP10231422A 1998-08-18 1998-08-18 Drying treatment method and device for wet waste Pending JP2000065476A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002138285A (en) * 2000-11-06 2002-05-14 Shin Nihonkai Jukogyo Kk Carbonization apparatus for livestock dung
DE102007010070A1 (en) * 2007-02-28 2008-09-04 Alba Ag Device for the treatment of household or household waste
CN101992204A (en) * 2010-11-01 2011-03-30 矫学真 Ecological separation and recovery technology of city household garbage and sewage sludge resource and device thereof
JP2011167649A (en) * 2010-02-19 2011-09-01 Daido Steel Co Ltd Carbonization treatment facility of sludge
CN103836891A (en) * 2014-03-20 2014-06-04 北京中矿环保科技股份有限公司 Horizontal airflow drying system
CN103880261A (en) * 2014-03-18 2014-06-25 嘉兴绿方舟环保技术有限公司 Circulating fluid bed air-drying system
CN105217919A (en) * 2015-09-30 2016-01-06 东莞东元环境科技有限公司 A kind of dehumidifying heat pump anhydration system device
JP2017006824A (en) * 2015-06-18 2017-01-12 月島機械株式会社 Treatment apparatus and process for organic waste

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002138285A (en) * 2000-11-06 2002-05-14 Shin Nihonkai Jukogyo Kk Carbonization apparatus for livestock dung
DE102007010070A1 (en) * 2007-02-28 2008-09-04 Alba Ag Device for the treatment of household or household waste
JP2011167649A (en) * 2010-02-19 2011-09-01 Daido Steel Co Ltd Carbonization treatment facility of sludge
CN101992204A (en) * 2010-11-01 2011-03-30 矫学真 Ecological separation and recovery technology of city household garbage and sewage sludge resource and device thereof
CN101992204B (en) * 2010-11-01 2015-12-16 矫学真 Domestic waste and sewage sludge resource ecology process for separating and recovering
CN103880261A (en) * 2014-03-18 2014-06-25 嘉兴绿方舟环保技术有限公司 Circulating fluid bed air-drying system
CN103880261B (en) * 2014-03-18 2015-11-18 嘉兴绿方舟环保技术有限公司 A kind of circulating fluidized bed air drying system
CN103836891A (en) * 2014-03-20 2014-06-04 北京中矿环保科技股份有限公司 Horizontal airflow drying system
JP2017006824A (en) * 2015-06-18 2017-01-12 月島機械株式会社 Treatment apparatus and process for organic waste
CN105217919A (en) * 2015-09-30 2016-01-06 东莞东元环境科技有限公司 A kind of dehumidifying heat pump anhydration system device

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