JP4830098B2 - Organic waste liquid combustion nozzle device and energy generation system - Google Patents

Abstract

A combustion nozzle device for an organic waste liquid simply formed in a small structure, manufacturable at low cost, and installable in a small space by connecting with a heat source or a drive source apparatus, an energy generating system, and a burning treatment method for the organic waste liquid. An organic waste liquid force-feed tube (14), a supporting material force-feed tube (16), and an air force-feed tube (18) are communicably connected to the hollow part of a closed hollow container (12). The organic waste liquid, a supporting material, and air are simultaneously force-fed into the closed hollow container (12), and their mixed fluid is jetted from a jetting nozzle (20) for ignition and burning. The communication ports (34a) to (34d) of the air force-feed tube (18) are formed at positions more apart from the jetting nozzle (20) than a communication port (30) for the organic waste liquid force-feed tube (14) and a communication port (32) for the supporting material force-feed tube (16). Since the organic waste liquid can be easily fed by a force-feeding air and clogging is prevented from occurring, stable combustion can be sustained.

Description

  The present invention relates to an organic waste liquid combustion nozzle device, an energy generation system, and a combustion treatment method thereof, and in particular, effectively uses organic waste liquid such as residual liquid and urine discharged from the food manufacturing field, fermentation industry or livestock industry. It is related with the apparatus etc. which can process and process energy effectively.

  Today, urban and lifestyle pollution problems and global environmental problems caused by mass production, mass consumption and mass disposal socio-economic activities are becoming more serious, especially for the treatment of waste discharged from various industries. Most public regulations apply. Organic waste liquids in waste, such as waste liquids from shochu production, boiled waste liquids such as soybeans, waste liquids discarded in various other food processing processes, pig manure and other livestock manure waste liquids, all have high BOD (biochemical It has oxygen demand (biochemical oxygen demand), SS (suspended solid: suspended organic matter in water), COD (chemical oxygen demand) values, and is discharged into the river as it is. Is forbidden. In addition, these waste liquids contain various organic components and are difficult to separate or decompose, and in many cases, oxidation is greatly advanced due to long-term standing, making the treatment difficult. Furthermore, it is becoming increasingly difficult to construct an incineration plant and secure a landfill site.

As an example, in the disposal of shochu, since it is a high-concentration waste liquid containing 90 to 95% of its water content, solid-liquid separation is difficult, and an effective treatment method is being sought. During the recent energy crisis, methane fermentation has attracted attention as a means of easily recovering energy from highly water-containing organic waste. This fermentation can treat high water content, high-concentration waste liquor, and low running costs. This is advantageous. In this method, the organic waste having a high water content is treated by anaerobic fermentation, but this treatment requires a large amount of energy input and has a difficulty in practical use. On the other hand, a method and apparatus for incineration of sludge discharged from a restaurant or the like is proposed in Japanese Patent Laid-Open No. 7-91636.
JP-A-7-91636, 0005, FIG. 1, FIG.

  The method or apparatus of Patent Document 1 described above is based on the surface activity of a part of the sewage in the intermediate layer in the tank in the treatment of “scum” made of an organic substance containing a large amount of oil and fat suspended and collected in the upper part of the oil / water separation tank. An additive such as an agent is added and supplied to the foaming container. A large number of bubbles are formed in the foaming container, and the bubbles are supplied to the combustion chamber. The combustible mixture of the solid residue is burned to recover the ashed solid. However, the apparatus of Patent Document 1 requires a stirring and crushing apparatus and a surfactant for facilitating generation of bubbles prior to combustion, and a foaming container as the bubble generating apparatus, which complicates the system and increases costs. . In addition, it is necessary to pass through the punching holes formed in the submerged chamber for the generation of bubbles in the bubble container, and it is easy to cause clogging at this time. Time management was necessary and complicated. In addition, since a plurality of treatments are required between the input of sewage and combustion, the amount of treatment is greatly restricted, and the primary or secondary storage tank is enlarged, which is disadvantageous in terms of cost and installation space. In particular, when systemizing as a heat source for equipment such as boilers and turbines, the facilities required only for the combustion process of sewage have become long, and it has been difficult to install only in a limited area along the beach. Further, in the combustion process, since the bubbled sewage and air are applied to the flame of the burning gas burner 11 and burned, the burner heavy oil and gas supplied to maintain sufficient combustion power There is a problem that the cost of fuel for combustion is high. Further, there is no certainty that sewage is not clogged at the bubble sending slit 9g for combustion, and it is still necessary to frequently perform maintenance and the like for the plurality of devices or parts while the device is operating.

  The present invention has been made in view of the above-described conventional problems, and one object of the present invention is a simple structure and low cost, and a small apparatus structure enables a boiler, a turbine, and other heat source or drive source equipment to be used in a small space. An object of the present invention is to provide an organic waste liquid combustion nozzle device, an energy generation system, and a combustion treatment method thereof that can be connected and installed. Another object of the present invention is to provide an organic waste liquid combustion nozzle device, an energy generation system, and a combustion treatment method thereof that can significantly reduce the fuel consumption cost for combustion. It is another object of the present invention to provide an organic waste liquid combustion nozzle device, an energy generation system, and a combustion treatment method thereof that can easily perform maintenance and management of the device with a simple structure.

In order to achieve the above object, the present invention provides a hollow enclosure 12, an organic waste liquid pressure feed pipe 14 connected to the hollow portion of the hollow enclosure at different communication ports 30 to 34, and a combustion aid pressure feed pipe 16. A pneumatic feed pipe 18 and a jet nozzle 20 for jetting a mixed fluid of organic waste liquid, auxiliary combustion material and air pumped into the hollow closed container to the atmosphere side, the organic waste liquid, auxiliary combustion material and air At the same time, it is a combustion nozzle device for organic waste liquid that is ignited and combusted by using the mixed fluid ejected from the ejection nozzle 20 as a fuel material in the hollow enclosure 12, and the communication port of the pneumatic feed pipe 18 with the hollow enclosure 12. 34a~34d, to the jetting nozzle 20 than the communicating ports 30, 32 of the respective hollow enclosure with organic waste and improve combustion, is set to a more spaced position, further The hollow portion of the hollow enclosure 12 is mixed in the air chamber 38 through which the communication ports 34a to 34d of the pneumatic feeding pipe 18 communicate, and the communication ports 30 and 32 of the organic waste liquid pressure feeding pipe 14 and the auxiliary combustion material pressure feeding 16 pipe. The chamber 40 is provided with a combustion nozzle device 10 for organic waste liquid, characterized in that the chamber 40 is provided in communication with both sides of the small passage 36 at the center . The organic waste liquid, the auxiliary combustion material, and the air are simultaneously pumped through a plurality of different communication ports to the hollow portion of the same hollow closed container, mixed, and ejected to the outside. By introducing fluid into the closed container through a relatively large communication port hole and injecting a well-mixed fluid from a relatively small ejection nozzle, there is no clogging when the organic waste liquid or auxiliary material flows. In the meantime, almost all organic waste liquids are combusted or burned by reliably generating particulate mist suitable for combustion. In addition, the amount of processing per unit time is large and processing can be performed reliably. In addition, since it is only pumped into the same closed container, the special equipment and costs are only the seed burner other than the compressor, and the device itself can be made compact and the manufacturing cost is extremely low. Good. The shape and size of the closed container can be set arbitrarily, but since waste liquid, auxiliary combustion material, and air are injected at the same time, it is preferable not to allow fluid from other pumping pipes to flow into each other. Furthermore, the mixing action and the clogging prevention function can be performed by setting an organic waste liquid or waste cooking oil containing large solid particles that are likely to cause clogging at a position closer to the low pressure side. When the air is on the downstream side and the air pressure is high, only air is likely to be ejected from the ejection nozzle. In this case, at least air is pumped and supplied to the hollow portion with substantially the same pumping force as that of the organic waste liquid and the auxiliary combustion material.

  In that case, it is more preferable that the small passage 36 is constituted by a passage that is long in the alignment direction of the nozzle hole 20 a of the ejection nozzle 20.

  Moreover, it is good to provide the adjustment valve mechanism 44 which adjusts the flow volume of the air at the time of pumping air from the air chamber 38 to the mixing chamber 40 via the small channel | path 36. FIG.

  Further, the adjustment valve mechanism 44 may be configured by a needle valve device 50 that moves forward and backward so that the tip of the needle enters the entrance opening 36 a of the small passage 36.

  Further, it is more preferable that at least the organic waste liquid pressure feeding pipe 14 and the auxiliary combustion material pressure feeding pipe 16 communicate with the same compression device 66 so that the organic waste liquid and the auxiliary combustion material are pressure fed to the hollow portion.

  At this time, at least the organic waste liquid and the auxiliary combustion material are preferably pumped into the hollow enclosure 12 with substantially the same pumping force. A combustion reaction occurs even if a slight pressure difference occurs in the pumping force. At this time, since the ejection nozzle (for example, the diameter of the nozzle hole of the ejection nozzle is set to several millimeters) is opened to the atmosphere, the mixed fluid of organic waste liquid, auxiliary combustion material (waste cooking oil), and air is released to the atmosphere. The

  Further, the air may be pumped at a pressure equal to or higher than that of the organic waste liquid or the auxiliary combustion material. When the air, the organic waste liquid, and the auxiliary combustion material are respectively pumped to the hollow portion of the hollow closed container at the same pressure, the pressure balance is stabilized, which is more preferable in terms of stabilizing the combustion itself.

  Moreover, it is good to set the auxiliary combustion material and organic waste liquid pumped by the hollow enclosure 12 by 1: 1 to 5: 1 by volume ratio.

  In addition, the energy generation system of the present invention may be configured such that the ignition device 22 is disposed in the vicinity of the ejection nozzle 20 of any one of the combustion nozzle devices 10 described above, and the generated combustion energy is used as a heat source or a power source.

  In addition, an ignition position variable mechanism 74 that changes and sets the distance from the tip of the ejection nozzle 20 to the ignition position by the ignition device 22 corresponding to the viscosity of the organic waste liquid and the auxiliary combustion material to be pumped to the hollow closed container 12 is provided. Good.

  An organic waste liquid combustion nozzle device according to the present invention includes a hollow closed container, an organic waste liquid pressure feed pipe connected to the hollow portion of the hollow closed container through different communication ports, an auxiliary combustion material pressure feed pipe, a pneumatic feed pipe, An ejection nozzle that ejects a mixed fluid of organic waste liquid, auxiliary combustion material, and air pumped into the hollow enclosure to the atmosphere, and simultaneously discharges the organic waste liquid, auxiliary combustion material, and air into the hollow enclosure Since the mixed fluid ejected from the nozzle is ignited and burned as a fuel, it is simple and low-cost, and it can be used in boilers, turbines, and other heat source or drive source equipment in a small space thanks to its compact configuration. Driving energy can be supplied. In addition, organic waste liquid of any characteristics can be combusted basically, so there were only measures such as shochu waste liquid, soybean soup that had to be relied on river discharge, underground suction, storage, landfill treatment, etc. Animal feces and urine can be treated effectively, and can be effectively used as an energy source. In addition, the fuel cost for combustion can be greatly reduced, and the simple structure has few failures, and the maintenance and management of the apparatus can be performed easily.

  In addition, at least the organic waste liquid and the auxiliary combustion material are configured to be pumped into the hollow closed container with substantially the same pumping force, so that backflow to the pumping tube is prevented, and the balance of the input amount of both is stabilized and the mixed fluid The composition ratio can be made constant, and stable combustion can be maintained.

  In addition, air is pumped at a pressure substantially the same as or higher than that of organic waste liquid or auxiliary combustion material, thereby preventing backflow of the organic waste liquid or auxiliary combustion material to the pneumatic feeding pipe side and sufficient oxygen. It is possible to reliably perform the supply of the amount and the pressure feeding to the ejection nozzle side.

  Further, the communication port of the pneumatic feeding tube with the hollow closed container is configured to be set at a position further away from the ejection nozzle than the communication port of the organic waste liquid and the auxiliary combustion material with each hollow closed container. As a result, the organic waste liquid and the auxiliary combustion material are injected closer to the position near the ejection nozzle, that is, the position near the low-pressure side outside air, and as a result, the compressed air easily blows the organic waste liquid. It becomes. And it can make it hard to produce clogging etc. and can maintain the stable combustion.

  In addition, the hollow portion of the hollow closed container has a small passage in the center with an air chamber that communicates with the communication port of the pneumatic feeding tube, an organic waste liquid pressure feeding tube, and a mixing chamber that communicates with each communication port of the auxiliary combustion material pressure feeding tube. In order to prevent clogging and the like by injecting the organic waste liquid and the auxiliary combustion material closer to the low pressure side closer to the ejection nozzle, it is possible to prevent clogging. The air received from the air pressure supply source can be pumped to the mixing chamber side in the form of a beam, and the pumping force to the jet nozzle side can be secured. Further, since there is a mixing chamber immediately before the nozzle, the pressure fluctuation can be alleviated to some extent in this portion, and combustion can be stabilized.

  Further, since the small passage is composed of a passage that is long in the alignment direction of the nozzle hole of the ejection nozzle, the beam-like air from the small passage is mixed with other elements in the mixing chamber to form a mixed fluid, It is possible to generate fine particulate mist while reducing energy loss by being ejected from the nozzle hole as it is without significantly losing energy.

  In addition, the amount of air in the mixed fluid generated in the mixing chamber is provided by a control valve mechanism that adjusts the flow rate of air when the air is pumped from the air chamber to the mixing chamber via the small passage. It is possible to freely adjust the setting according to the characteristics of the organic waste liquid to be treated or the auxiliary combustion material.

  Further, since the control valve mechanism is composed of a needle valve device that moves forward and backward so that the tip of the needle projects into the entrance opening of the small passage, for example, by projecting the operation portion to the outside, High precision and fine adjustment of the air flow rate can be set only by moving forward and backward.

  In addition, at least the organic waste liquid pressure feeding pipe and the auxiliary combustion material pressure feeding pipe are connected to the same compression device so that the organic waste liquid and the auxiliary combustion material are pumped to the hollow part, so that the hollow part moves from the hollow part to the mutual pressure feeding pipe side. A stable and reliable combustion process can be realized without the medium flowing backward and impairing the injection amount balance.

  Moreover, the combustion of the particulate mist ejected from the ejection nozzle is maintained by adopting a configuration in which the auxiliary combustion material and the organic waste liquid pumped to the hollow closed container are set at a volume ratio of 1: 1 to 5: 1. can do.

  An organic waste liquid energy generation system according to the present invention has a configuration in which an ignition device is disposed in the vicinity of an ejection nozzle of a combustion nozzle device according to any one of claims 1 to 10 and the generated combustion energy is used as a heat source or a power source. Therefore, waste can be burned with a simple configuration and waste disposal can be easily performed. In addition, the combustion energy generated at that time can be used to supply energy to a heat source or power source. Can function as.

  In addition, the organic waste liquid is configured to have an ignition position variable mechanism that changes and sets the distance from the tip of the ejection nozzle to the ignition position by the ignition device in accordance with the viscosity of the organic waste liquid and the auxiliary combustion material to be pumped to the hollow closed container. In addition, it is possible to improve the combustion efficiency by generating an efficient flame by igniting at the best combustion point corresponding to the viscosity of the auxiliary combustion material.

  Further, according to the organic waste liquid combustion treatment method, the organic waste liquid, the auxiliary combustion material, and the air are simultaneously pumped at substantially the same pressure through a supply pipe that communicates with the hollow closed container through separate ports, Since the mixed fluid of organic waste liquid, auxiliary combustion material, and air is ejected from the ejection nozzle provided in the closed container and burned by igniting the ejected fluid, it is simple and small in size with a small device configuration. Drive energy can be supplied to a heat source or a drive source device in a space. In addition, organic waste liquid of any characteristics can be combusted basically, so there were only measures such as shochu waste liquid, soybean soup that had to be relied on river discharge, underground suction, storage, landfill treatment, etc. Animal feces and urine can be treated effectively, and can be effectively used as an energy source. Furthermore, the fuel cost for combustion can be greatly reduced.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. 1 to 4 show a first embodiment of an organic waste liquid combustion nozzle device of the present invention. The organic waste liquid combustion nozzle device of the present invention can effectively burn residual liquid and urine discharged from the food production field, fermentation industry field, livestock industry, etc., and can easily and effectively use the combustion energy. In particular, the apparatus has a very simple apparatus configuration, is small in size, can maintain manufacturing and maintenance costs at a low cost, and can greatly save fuel for combustion. The organic waste liquid to be processed by the organic waste liquid combustion nozzle device of the present invention includes shochu waste liquid (shochu), boiled waste liquid such as soybeans, and other waste liquids discarded in various food processing processes, pigs, chickens, cattle Such as manure and other livestock manure waste liquids and other organic waste liquids such as waste liquids after removing organic solids and inorganic solids with a filter press or a centrifuge in advance (waste liquid after pretreatment) The waste liquid is processed after removing the solid matter having a size larger than at least the opening diameter of the ejection nozzle that is ejected to the atmosphere side.

  FIG. 1 is an explanatory diagram of a schematic configuration of a combustion apparatus 110 including an organic waste liquid combustion nozzle apparatus 10 according to the present invention. In the figure, an organic waste liquid combustion nozzle apparatus 10 according to the present invention includes a hollow enclosure 12, An organic waste liquid pressure feed pipe 14, an auxiliary combustor pressure feed pipe 16, a pneumatic pressure feed pipe 18, and a jet nozzle 20 provided on one end of the hollow closed container, each connected to a hollow portion of the hollow closed container by a separate passage. ,including. Then, a mixed fluid of the organic waste liquid, the auxiliary combustion material, and the air is ejected from the ejection nozzle 20 to the outside or the atmosphere side, for example, the combustion chamber 150 side, and is ignited and combusted by the ignition means 22.

  In the figure, a hollow enclosure 12 is a structure that constitutes a main part of an organic waste liquid combustion nozzle device 10, air that is simultaneously pumped into the hollow at the same pressure, an organic waste liquid to be treated, and a combustion aid. Is a combustion fluid generating means for receiving the gas as a mixed fluid and ejecting it from the ejection nozzle 20 in a mist state of fine particles. In the embodiment, the hollow closed container 12 is formed of a closed case made of a heat-resistant material, and is formed of, for example, stainless steel and has a hollow cylindrical shape as a whole. In the embodiment, the size of the hollow enclosure is composed of, for example, a small cylindrical case body having a diameter of about 3 cm and a length of about 10 cm, but it may be larger or smaller.

  In the embodiment, the hollow closed container 12 is formed in a cylindrical shape having both cylindrical end walls 121 and a peripheral wall 122, and is configured by integrally assembling and joining a plurality of components. 1 and 3, an ejection nozzle 20 for ejecting a mixed fluid is formed on the cylindrical end (121a) side, and the hollow interior and the exterior are communicated with each other through the nozzle hole. The ejection nozzle 20 has a fine particle mist generating structure. In the embodiment, the orifice-like outlet 20a is formed by once narrowing the communication path with the hollow interior, and the outlet gradually increases from the orifice-like outlet toward the outside. The taper flow path 26 is provided so as to be enlarged. That is, the fine particle mist generating structure has an orifice portion 24 having an orifice-like outlet 20a and a taper channel 26 that continuously expands. The orifice-shaped outlet 20a is the narrowest flow path portion to the outside of the mixed fluid of the organic waste liquid, the auxiliary combustion material, and the air. In the embodiment, the orifice-shaped outlet 20a is a nozzle hole. In the present embodiment, the orifice-shaped outlet 20a is set to have a diameter of about 1 to 2 mm, for example, and fluid pumped from each communication port having a diameter of about 5 mm is stably and surely injected into the closed container without clogging. On the other hand, the mixed fluid mixed in the hollow portion can be surely made into a fine mist by releasing the low pressure from the nozzle hole to promote combustion. In the embodiment, the portion of the end wall 121a on the inner side of the orifice-shaped outlet 20a as the narrowest narrow passage gradually decreases in the direction of travel (from the inner side to the outer side of the hollow enclosure) in the funnel shape. An enlarged taper channel 28 is provided, and the tip of the enlarged taper channel 28 is provided continuously with the orifice outlet 20a. The enlarged taper channel 26 is directed outward so as to diffuse the fine particle mist generated when the high-pressure and high-speed mixed fluid is discharged from the outlet opening (20a) of the orifice-shaped outlet 20a while expanding the channel. It is a means to guide the release. In the embodiment, the flow path center line r1 of the orifice-shaped outlet 20a is formed so as to coincide with the cylindrical axis c1 of the hollow enclosure, so that the mixed fluid is discharged from the ejection nozzle 20 on or along the cylindrical axis. Erupted.

The peripheral wall 122 of the hollow enclosure 12 is provided with a plurality of ports for communication connection of each pressure feeding tube. In the embodiment, as shown in FIGS. 2, 3, and 4, in the peripheral wall 122 closer to the ejection nozzle 20, the two first and second communication ports 30 and 32 are arranged at positions opposed to each other in the diametrical direction. A total of six communication ports of four third, fourth, fifth, and sixth communication ports 34a, 34b, 34d, and 34e penetrate in the radial direction of the cylindrical container at positions farther from the ejection nozzle 20. It is provided as follows. The communication ports 30 to 34 are communication means that are provided at different positions in the hollow portion of the hollow enclosure 12 and communicate with each other, and form holes 30p to 34ep in the direction penetrating the wall of the peripheral wall 122, respectively. And the pressure feeding pipes communicate with each other through different flow paths. In the present embodiment, each communication port is constituted by a port metal fitting in which one end side is connected to the communication hole of the closed container body and a part on the other end side protrudes in the radial direction of the container. An organic waste liquid pressure feed pipe 14 is connected to the first communication port 30, an auxiliary combustion material pressure feed pipe 16 is connected to the second communication port 32, and a pneumatic feed pipe is connected to each of the third to sixth communication ports. 18 are connected and connected. In this embodiment, the holes of these communication ports are set to about 5 mm, for example. For example, the volume of the mixing chamber into which the organic waste liquid flows in with the overall size of the embodiment is set to 1.2 cm ^2. For example, in this case, the hole of the communication port (the communication hole with the air chamber or the mixing chamber) The diameter Dp may be set to about 5 mm to 7 mm.

Further, as shown in FIG. 3, the hollow interior of the hollow enclosure 12 is configured by arranging an air chamber 38 and a mixing chamber 40 so as to communicate with the small passage 36 through a small passage 36 in the middle. ing. The small passage 36 is an air passage for supplying air fed to the air chamber 38 side to the mixing chamber 40 side. In the embodiment, the small passage 36 has a central axis on the axis of the cylinder at an intermediate position of the cylindrical hollow enclosure. It consists of a long and narrow air passage. The small container 36 and the air chamber 38 and the mixing chamber 40 at both ends are assembled and joined so that a dumbbell-shaped hollow portion is integrally formed in the cylindrical closed container 12. Yes. That is, the air chamber 38 and the mixing chamber 40 is communicatively connected to both ends of the small passage 36, a hollow portion of the short cylindrical enlarged from each of the small passage 36 in stepped, air chamber 38, a small passage 36, The mixing chambers 40 are arranged in a straight line, and their center lines are formed so as to be aligned with the nozzle holes (orifice-shaped outlets) of the ejection nozzle 20. A chamber close to the ejection nozzle 20 is a mixing chamber 40 in which the organic waste liquid and the auxiliary combustion material are simultaneously pumped at substantially the same pressure, and the mixing chamber 40 is an inner space of the expansion taper channel 28 of the ejection nozzle 20 (an expansion taper). The maximum diameter portion of the flow path) communicates with each other, thereby communicating the inside of the mixing chamber 40 with the nozzle hole 20a and the outside of the container 12. 42 is an airtight packing when the jet nozzle 20 portion is assembled to the main body of the hollow closed container. In the mixing chamber 40, first and second communication ports 30 and 32 are connected to both ends of the cylindrical container in the diametrical direction to pressure-feed the organic waste liquid and the auxiliary combustion material. As described above, the holes of these ports are formed with substantially the same diameter, and are pumped at approximately the same pressure and flow in. This is because if there is a difference in filling pressure in the mixing chamber 40, waste liquid or auxiliary combustible material that flows in at a higher pressure flows into each pumping pipe from the port hole of the one that is injected at a lower pressure, and some fluid flows backward. This is because the mixing balance in the mixing chamber may be lost. In that sense, strictly speaking, the pumping force of the organic waste liquid and the auxiliary combustor is a pressure that does not cause press-fitting into other port holes in the mixing chamber, and it does not require the same pressure or the same pressure. In any case, a pressure difference that does not disturb the mixing balance in the mixing chamber due to a pressure higher than atmospheric pressure can be arbitrarily set as an allowable limit. The air chamber 38 is a chamber into which air is pumped and flows, and is formed in a space that is, for example, substantially the same diameter as the mixing chamber and has one end extended to the other end of the cylinder of the closed container and opened. Note that the open portion on the other end side of the main body of the closed container is naturally closed to the outside, and in the present embodiment, it is hermetically sealed via a regulating valve mechanism described later. As shown in FIG. 2, pressurized air is introduced into the air chamber 38 from the third to sixth ports 34 a to 34 d set at positions shifted by 90 degrees in the circumferential direction. In the present embodiment, the air pressure-fed to the air chamber 38 flows in a straight line through the small passage 36, the mixing chamber 40, and further toward the orifice-shaped outlet 20a on the low-pressure open end side. On the other hand, the organic waste liquid and the auxiliary combustion material in the mixing chamber flow into the mixing chamber 40 so as to penetrate in the radial direction of the cylindrical container, are mixed at once with a high-speed fluid, and are ejected from the orifice-shaped outlet 20a as a mixed fluid.

  1 and 3, a control valve mechanism 44 is provided on the other end side of the cylindrical closed container, and the other end side of the cylinder is closed via an element of the control valve mechanism 44. The adjustment valve mechanism 44 is an air flow rate adjusting means for adjusting the flow rate of air when the air is pumped from the air chamber 38 to the mixing chamber 40 via the small passage 36. In this embodiment, the control valve mechanism 44 is more than the diameter of the hollow enclosure. It has a needle valve device 50 including a small diameter shaft holder 46 and a needle valve 48 attached to the tip of the holder. The shaft body holder 46 is formed on the inner wall of the extension 39 of the air chamber 38 of the hollow enclosure so as to have the same axial direction as the cylindrical axis of the enclosure 12, and is screwed into the screw hole 52. It is comprised from the volt | bolt shaft body which moves to the flow-path axis direction so that screwing back and forth is possible. This shaft body holder 46 tightly and slidably penetrates the packing 54 attached to the inner wall on the open end side of the closed container main body so as to hermetically seal the inside and outside of the closed container 12. A part of the cylindrical shaft body of the shaft body holder 46 protrudes to the outside, and an operation protrusion 56 is formed at the protruding end. An external projecting portion of the shaft body holder 46 forms an operation knob 58. The shaft body holder 46 has a needle valve 48 fixed to the end opposite to the external projecting side. The needle valve 48 advances and retreats so that the tip of the needle valve 48 enters the entrance opening 36 a of the small passage 36, and is supplied from the air chamber 38 for air pressure fed from the third communication ports 34 a to 34 d for supplying pneumatic pressure to the small passage 36. Adjust the amount of inflow. In this case, the tip of the needle valve 48 is pointed toward the axial center of the needle. Therefore, when the needle valve 48 is close to the entrance opening 36a of the small passage 36, the gap between the tip tip portion of the needle and the entrance opening 36a is a sharp portion. The air enters the small passage 36 with a stable flow and flows into the mixing chamber 40 side.

  As described above, the organic waste liquid pressure feed pipe 14 is a shochu waste liquid (shochu), a boiled liquid waste such as soybeans, a waste liquid discarded in various other food processing processes, a manure such as pigs, chickens and cattle, and other livestock manure waste liquids. It is a conduit means for pumping other organic waste liquid (for example, having a water content of about 90% or more), and may be composed of, for example, a synthetic resin or a metal pipe. The organic waste liquid pressure-feed pipe 14 is connected to a waste liquid tank 60 and the waste liquid having a flow rate set through a regulator 62 for flow rate adjustment is pressure-fed. The waste liquid tank 60 is a storage tank for pre-processed organic waste liquid discharged from various processes and offices, and is connected to a compressor 66 via an air pressure supply pipe 64 from the compressor.

  The auxiliary combustion material pumping pipe 16 is a conduit means for pumping the auxiliary combustion material to be pumped into the hollow closed container together with air and organic waste liquid, and is connected to the auxiliary combustion material tank 70 via a flow rate adjusting regulator 68. The auxiliary combustion material tank 70 is connected to the same compressor 66 as the pressure feeding force is supplied to the waste liquid side via the air pressure supply pipe 64. Here, the auxiliary combustion material is combustion auxiliary or auxiliary fuel means when being mixed together with air and organic waste liquid in the hollow closed container and ejected to the outside as the particulate mist from the injection nozzle 20, and the particulate mist is ignited. It is a component of the combustion reaction medium generated when Specifically, for example, a flammable liquid insoluble in water, such as oils, or a flammable gas is included. More specifically, examples of the auxiliary combustion material include liquid fuels such as kerosene, heavy oil, light oil, and gasoline, and fluid fuels including gaseous fuels such as natural gas, liquefied petroleum gas, and city gas. Preferably, edible oil discharged from households, food and beverage providers, schools, business establishments, and other facilities contributes to environmental protection through resource recycling and waste reduction. That's fine.

  The compressor 66 is a pneumatic pressure generating drive unit connected to at least the pneumatic feeding pipe 18 to generate and supply high-pressure air. In this embodiment, one end side of a pneumatic supply pipe 64 provided with a flow meter 72 is connected in communication. . The pneumatic feed pipes 18a to 18d connected to the four communication ports 34a to 34d are connected to each other at the N position, and the other end side of the pneumatic supply pipe 64a is connected to the N position in common. So connected. Therefore, air of the same pressure is pressure-fed and supplied into the air chamber 38 from each of the communication ports 34 a to 34 d. Further, in the present embodiment, the compressor 66 is also connected to the waste liquid tank 60 and the auxiliary combustion material tank 70 via other pneumatic supply pipes 64b and 64c, respectively, whereby the pneumatic feed pipe 18 and the organic waste liquid are connected. Each of the pressure feeding pipe 14 and the auxiliary combustion material pressure feeding pipe 16 is connected to the same air pressure generation driving means, and is fed by applying substantially the same air pressure. As a result, a back flow to another port due to a pressure difference in the mixing chamber 40 is not generated, and air is pumped into the air chamber 38 with substantially the same air pressure, so that only air is ejected from the small passage 36 due to excessive high pressure. Therefore, it is possible to appropriately maintain the combustion by generating an appropriate fine particle mist without making it difficult to cause the combustion. In addition, the pressure to the air chamber 38 from the pneumatic feeding pipe 18 needs to be pumped at the same or higher pressure than the organic waste liquid or the auxiliary combustion material. The pressure from the pneumatic feeding pipe 18, the organic waste liquid feeding pipe 14 and the auxiliary combustion material feeding pipe 16 needs to be at least higher than the atmospheric pressure. However, it is not necessary to set a significantly high pressure in relation to the atmospheric pressure, and it is sufficient if there is a certain amount of discharge force from the communication ports 30 to 34 to the hollow portion of the closed container. Preferably, the pressure P is about 1 <P <10 atm. If the pressure is 10 atmospheres or more, there is a high possibility that the mixing state in the waste liquid, auxiliary material, air chamber of air volume or mixing chamber that receives air will greatly fluctuate due to a subtle pressure difference, and it is ejected from the ejection nozzle under conditions favorable for combustion. There is a risk of making the setting for making it unnecessarily difficult. In order to supply the same air pressure to the pneumatic feeding pipe 18, the organic waste liquid feeding pipe 14, and the auxiliary combustion material feeding pipe 16, the pipes do not necessarily have to be connected to the same compressor. Air may be pumped by setting substantially the same pressure.

  Thereby, the ignition device 22 can be arranged in the vicinity of the ejection nozzle 20 of the combustion nozzle device 10, and the generated combustion energy can be used as a heat source or a power source. In this case, the ignition by the ignition device 22 in the combustion chamber 150 in FIG. 1 may be an extremely weak pilot burner necessary for it, and the fuel consumption is also a small amount.

  Next, the operation of the present embodiment will be described mainly with reference to FIG. 1 and FIG. 3. For example, when organic waste liquid is used as shochu waste liquid and waste cooking oil is used as the auxiliary combustion material, compression from the compressor 66 as the same pressure generator is performed. The air is pumped at a high pressure via the communication ports 30 to 34 to the air chamber 38 and the mixing chamber 40 through the air pressure supply pipes 64a, 64b and 64c, respectively. At this time, the air is supplied with the flow rate adjusted by the flow meter 72 and the organic waste liquid and the auxiliary combustion material are adjusted by the flow rate adjusting regulators 62 and 68, respectively. Air, organic waste liquid, and auxiliary combustion material are simultaneously supplied to the air chamber 38 and the mixing chamber 40 with a pumping force of substantially the same pressure. It is ejected to the outside air) side. The amount of air flowing from the air chamber 38 to the mixing chamber 40 via the small passage 36 can be manually picked from the outside of the device via the needle valve device 50. The air exiting from the small passage 36 toward the mixing chamber is guided by the straight small passage and flows out into the mixing chamber in the form of a straight line and a beam, and the orifice-shaped outlet 20a is not greatly reduced in the outflow direction. The fine mist is discharged from the low pressure atmosphere side. At this time, the mixing chamber 40 is mixed at high speed with the organic waste liquid and the auxiliary combustion material pumped from the direction perpendicular to or substantially perpendicular to the air flow direction. As shown in FIG. 2, in this embodiment, the organic waste liquid and the auxiliary combustion material are supplied so as to collide from the opposite direction on the same straight line in the mixing chamber, and are mixed while colliding with each other. Air from is pumped. As a result, a large pressure is generated at the inner portion of the orifice-shaped outlet 20a of the ejection nozzle, and the mixed fluid is released at once when exiting the outlet 20a. For example, the taper flow path 26 is set at an opening angle of 120 degrees. It is guided by the expansion wall and ejected to expand to the outside as fine particle mist. This particulate mist is used as a fuel. Then, it is ignited via an ignition device 22 such as a pilot burner installed in the vicinity of the tip of the ejection nozzle, and burns in, for example, the combustion chamber 150. As described above, the organic waste liquid, the auxiliary combustion material and the air simultaneously injected at the same pressure are mixed fluid, and in this state, the liquid is ejected to the outside and ignited in the form of fine mist, so the characteristics of the organic waste liquid such as viscosity, fiber, etc. Regardless of the quality component and the amount of oil, basically any organic waste liquid can be combusted. For this reason, what has increased environmental load as waste can be made to function as a part of fuel, and drive power can be supplied as a heat source or a power source. The mixing ratio of the waste cooking oil and the organic waste liquid is preferably in a range of, for example, about 1: 1 to 1: 5 by volume. If the waste cooking oil is less than the organic waste liquid, stable combustion is difficult to obtain.

  As shown in FIG. 5, the communication ports 30 and 32 may be connected to the mixing chamber so that the organic waste liquid and the auxiliary combustion material flow into the mixing chamber so as to pass each other. It is preferable that the air is pumped from the air chamber and ejected from the ejection nozzle as a mixed fluid.

  The organic waste liquid combustion nozzle device as described above can be used as a heat source or a power source by being connected to a heat source device or an energy generator as shown in FIG. For example, in the example of FIG. 6, a turbine or a generator can be connected to the combustion nozzle device 10 in which the ignition device 22 is disposed in the vicinity of the ejection nozzle 20 and used for various industrial power sources. Further, it can be connected to a boiler, heating or a heat storage device to generate high-temperature and high-pressure steam, and can be used as a heat source device for indoor air-conditioning equipment through heat exchange or the like. In this case, the mixing chamber 40 burns in a mixed fluid of air, organic waste liquid, and auxiliary combustion material, particularly in a fine particle mist state in which the auxiliary combustion material is previously mixed in the fluid. The combustion efficiency is changed depending on the distance to the position. That is, many organic waste liquids have high viscosity or viscosity, and the reach distance of particles at the time of ejection is different. Therefore, the thermal power becomes strongest in the vicinity of the position where these waste liquids and auxiliary combustion materials as combustion products arrive. Therefore, the distance from the nozzle tip to the ignition position may be variably set according to the type of organic waste liquid or the auxiliary combustion material used. In FIG. 9, an ignition position varying mechanism 74 is provided in the vicinity of the front of the ejection nozzle 20. The ignition position varying mechanism 74 includes a torch portion 76, a gas storage tank 78 installed at a position separated from the combustion atmosphere, a slider 80 that linearly moves back and forth on a guide frame that moves the tank, A transmission unit 82 coupled to a rack and pinion and a drive motor 84 are included. By moving the slider 80 by the motor driving force, the ignition position by the torch portion 76 from the tip position of the ejection nozzle 20 is variably set, and the organic waste liquid is burned under optimum combustion conditions. In particular, the ignition position from the tip of the ejection nozzle may be set according to the viscosity of the organic waste liquid and the auxiliary combustion material to be pumped to the hollow closed container.

Next, although a reference example is demonstrated based on FIG. 7, 8, the same code | symbol is attached | subjected to the same member as above-mentioned 1st Embodiment, and the detailed description is abbreviate | omitted. The organic waste liquid combustion nozzle device 11 of this reference example is not a structure in which the hollow portion of the hollow closed container 12 is divided and communicated in two, like an air chamber and a mixing chamber, but is different from a position close to one end wall side. It is a straight cylindrical hollow chamber 86 that communicates with the ejection nozzle 20 on the end side, and a circumferential void that communicates circumferentially with the wall surface of the hollow chamber with a slightly smaller diameter than the cylindrical void of this hollow chamber A cylindrical tube 90 is accommodated so as to form 88. One end side of the cylindrical tube 90 is disposed at a position facing the inlet portion of the enlarged taper flow path 28 of the ejection nozzle, and the other end side is formed with a joining gap 92 between the end of the cylindrical gap. The position is set slightly away from the end. A plurality of air injection holes 94 are formed at a plurality of locations in the circumferential direction of the cylindrical tube 90. In addition, four communication ports 34 a to 34 d connected to the pneumatic pipe so as to communicate with the gap 88 are provided. The compressed air fed from the communication ports 34 a to 34 d flows into the cylindrical tube 90 through the plurality of air injection holes 94.

In addition, in this reference example , the first communication port 96 as the waste liquid pressure feeding pipe and the second communication port 98 as the auxiliary combustion material pressure feeding pipe communicate with the merging gap 92 in a Y shape so as to communicate with the merging gap 92. Is formed. One end side opening of the cylindrical tube 90 communicates with the joining gap 92, and the joining gap 92 is formed to communicate only with the hollow interior of the cylindrical tube 90. As a result, the organic waste liquid and the auxiliary combustion material are simultaneously pumped into the merged gap 92 with a pumping force of substantially the same pressure, and flow toward the ejection nozzle 20 through the hollow portion of the cylindrical tube toward the outside of the apparatus on the low pressure side. When the organic waste liquid and the auxiliary combustion material flow linearly through the hollow portion in the cylindrical tube 90, compressed air is injected from the plurality of air injection holes 94, and the ejection nozzle 20 is in a mixed fluid state in which these three elements are mixed. reaches the side, further, it is jetted become the particulate mist outside the apparatus. In FIG. 9, 100 is an airtight packing when the hollow closed container body and the ejection nozzle 20 are assembled and joined, 102 is an airtight packing between the cylindrical tube 90 and the inside of the ejection nozzle, and 104 is a hollow closed container body. An airtight packing for joining with the other end extension part 106 is an airtight packing when the other end extension part and the cylindrical tube 90 are assembled and joined.

  In addition, regarding the structure of the ejection nozzle 20, as shown in FIG. 8, the inner side inlet portion in front of the orifice-like outlet 20a, which is the narrowest narrow portion, may not be an enlarged tapered flow path but may be a concave portion having an arcuate cross section.

Of course, the organic waste liquid combustion nozzle apparatus of the above reference example can also be used as a heat source or a power source by being connected to, for example, a heat source device or an energy generator as shown in FIG. Moreover, the ignition position variable mechanism 74 according to the viscosity characteristic of a combustion object or auxiliary combustion material can also be installed.

  As described above, air, organic waste liquid, and auxiliary combustion material are pumped through an extremely small hollow closed container at the same pressure and simultaneously through different communication ports, and this is injected from the jet nozzle toward the low pressure side. The combustion of the particulate mist of the mixed fluid at that time has also been confirmed experimentally.

[Experimental example] Combustion experiment was conducted with the combustion nozzle device shown in Fig. 3, using the residue of shochu fermentation in the methane gas recovery process performed by methane fermentation of the shochu waste liquor as organic waste liquor and waste cooking oil as the auxiliary combustion material. . FIG. 9 is a conceptual configuration diagram of a combustion experiment at that time. The ejection nozzle is arranged in the lateral direction, and the mixed fluid is ejected in the lateral direction. A pilot burner is installed at a distance L from the spout to create a fire. The mixed fluid that has reached the seed fire forms a flame, and the behavior of the flame is photographed with a digital video camera. The position of the pilot burner and the ratio of the fermentation residue and waste cooking oil in the shochu liquor are changed to measure the change in flame length. did. The position of the pilot burner is represented by a distance L from the injection port, and the flame length is represented by a distance λ from the burner central axis to the longest flame point at the moment when the flame becomes longest. The ratio of shochu liquor waste liquor fermentation residue to waste cooking oil was 2: 1, 1: 0, 1: 1, 0: 1, 1: 2. Furthermore, the burner distance L [mm] was performed for 30, 50, 80, 100, 150, 200, and 250 for each ratio.
[Results and Discussion] Flame lengths can be classified into two patterns as shown in FIG. It is the case where the fermentation residue is contained at a higher ratio than the waste cooking oil and at the lower ratio. If the proportion of fermentation residue is high, the flame does not develop much. The flame length also increased as the burner distance increased. On the other hand, when the ratio of waste cooking oil is high or when the ratio of waste cooking oil and fermentation residue is the same, the flame develops very much, and the shorter the burner distance, the longer the flame length. Since the fermentation residue of the shochu liquor has a low viscosity, the liquid droplets are scattered farther after being sprayed in the lateral direction. However, the waste cooking oil has a high viscosity, so the flight distance does not increase. Therefore, although a lot of waste cooking oil is contained in the spray near the injection port, the ratio of the fermentation residue increases as it moves away from the injection nozzle. From the above points, it is considered that a large amount of waste cooking oil with a high calorific value is contained in the vicinity of the injection port, and the flame length becomes long. From the above, it can be seen that in the spraying, the fermentation residue of the shochu waste liquid and the waste cooking oil are well mixed at a position of about 100 to 150 mm from the nozzle injection port. Further, the spray burns best at a position of about 50 mm from the nozzle injection port. Furthermore, the ratio of the fermentation residue and waste cooking oil of the mixed fluid must be equal or the ratio of waste cooking oil must be increased. However, it was found that the fermentation residue mixed better than the waste cooking oil alone.

  The organic waste liquid combustion nozzle device and the energy generation system of the present invention are not limited to the configuration of the above-described embodiment, and modifications and improvements within a scope not departing from the essence of the invention described in the claims are also possible. It is included in the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual configuration explanatory diagram of a combustion apparatus including an organic waste liquid combustion nozzle apparatus according to a first embodiment of the present invention. It is a cross-sectional view of the hollow enclosure according to the first embodiment. It is a longitudinal cross-sectional explanatory drawing of the combustion nozzle apparatus of the organic waste liquid which concerns on 1st Embodiment. It is a front view of the combustion nozzle apparatus of the organic waste liquid of FIG. It is a cross-sectional view of the hollow enclosure where the communication positions of the organic waste liquid and the auxiliary combustion material and the hollow enclosure are different. It is a block block diagram of the energy generation system using the combustion nozzle apparatus of the organic waste liquid of this invention. It is a longitudinal cross-sectional explanatory drawing of the combustion nozzle apparatus of the organic waste liquid which concerns on the reference example of this invention. It is a principal part expanded sectional view which shows the other example of the ejection nozzle part of the combustion nozzle apparatus of organic type waste liquid. It is an embodiment conceptual diagram including an ignition position variable mechanism and a conceptual configuration diagram of a combustion experiment. It is a graph which shows the relationship between the distance L from the ejection nozzle front-end | tip to a torch in an experiment example, and the distance (lambda) from a torch to the front-end | tip of a flame.

10. Combustion nozzle device for organic waste liquid (first embodiment)
12 Hollow closed vessel 14 Organic waste liquid pressure feeding pipe 18a, 18b, 18c, 18d Pneumatic feeding pipe 20 Jet nozzle 22 Ignition means 26 Expanded taper flow path 30 First communication port 32 Second communication port 34a, 34b, 34c, 34d Third, 4, 5, 6, communication port 36 small passage 38 air chamber 40 mixing chamber 50 needle valve device 66 compressor 74 ignition position variable mechanism 96 first communication port 98 second communication port 110 combustion device 150 combustion chamber

Claims (10)

A hollow enclosure,
An organic waste liquid pressure feeding pipe, a combustible material pressure feeding pipe, a pneumatic feeding pipe, which are connected to the hollow portion of the hollow closed container through different communication ports,
A jet nozzle for jetting a mixed fluid of organic waste liquid, auxiliary combustion material and air pumped into the hollow closed container to the atmosphere side,
It is a combustion nozzle device for organic waste liquid that ignites and burns the mixed fluid ejected from the ejection nozzle as a fuel by simultaneously pumping the organic waste liquid, auxiliary combustion material and air into the hollow closed container,
The communication port with the hollow closed container of the pneumatic feeding pipe is set at a position farther away from the ejection nozzle than the communication port with each hollow closed container of the organic waste liquid and the auxiliary combustion material,
Further, the hollow portion of the hollow closed container has an air chamber that communicates with the communication port of the pneumatic feeding pipe, and a mixing chamber that communicates with each communication port of the organic waste liquid pressure feeding pipe and the auxiliary combustion material pressure feeding pipe, with a small passage at the center. A combustion nozzle device for organic waste liquid, wherein the combustion nozzle device is provided in communication with both sides . Small passage, combustion nozzle unit of organic-based waste of claim 1, wherein comprising a long passage in centering direction of the nozzle hole of the ejection nozzle. 3. An organic waste liquid combustion nozzle device according to claim 1, further comprising a control valve mechanism for adjusting a flow rate of air when air is pumped from the air chamber to the mixing chamber through the small passage. . 4. A combustion nozzle device for organic waste liquid according to claim 3 , wherein the control valve mechanism comprises a needle valve device that moves forward and backward so that the tip of the needle enters the entrance of the small passage. The at least organic waste pumping pipe and improve combustion pumping tube, organic according to any one of claims 1 to 4 and organic waste and improve combustion in communication with the same compression apparatus is characterized in that it is pumped into the hollow portion System waste liquid combustion nozzle device. At least organic waste and organic-based waste combustion nozzle device according substantially to any claims 1, characterized in that it is pumped into the hollow closure vessel 5 with the same pumping power and improve combustion. Organic-based waste combustion nozzle device according to any one of air claims 1, characterized in that it is pumped at substantially the same or a higher pressure than those with organic waste or improve combustion 6. The combustion of the organic waste liquid according to any one of claims 1 to 7 , wherein the auxiliary combustion material and the organic waste liquid pumped to the hollow closed container are set at a volume ratio of 1: 1 to 5: 1. Nozzle device. Energy generation system characterized by claims 1 to that place the ignition device in the vicinity jet nozzle of one of the combustion nozzle device 8 utilizes a combustion energy generated as a heat source or a power source. According to claim 9, characterized in that it has an ignition position varying mechanism for changing set the distance corresponding to the viscosity of the organic waste and improve combustion for pumping the hollow closed container from the tip of the jet nozzle to the ignition position by the ignition device Energy generation system.

Images