JP2007225181A - Water-containing waste treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a treatment apparatus capable of evaporating and removing moisture from waste containing moisture such as plant waste and excrement of livestock, and effectively drying the waste. <P>SOLUTION: This treatment apparatus is equipped with: a swingable or rotatable treatment tank for storing water-containing waste; agitating blades for agitating the water-containing waste inside the treatment tank; an injection device for injecting steam and treating water; a rotary shaft on which the agitating blades and the injection device are installed, having a double pipe structure on the inside composed of a feed pipe for steam and a feed pipe for the treating water; and an aeration device at the bottom of the treatment tank. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hydrous waste treatment apparatus capable of drying hydrous waste such as plant residues such as garbage, excrement such as livestock or poultry, and waste liquid from a factory.

  Garbage and livestock excretions from households cause odors if left as they are, and their disposal is a problem. However, disposal of these wastes includes landfill and incineration. Alternatively, after decomposition by microorganisms, the product is used as compost.

  However, these methods cannot completely suppress the generation of malodors, cause soil contamination in the case of landfill, air pollution in the case of incineration, and take time to process in the method using microbial decomposition. There was a problem.

  In recent years, various apparatuses have been proposed for drying treatment by bringing exhaust gas or the like into contact with waste contained in a treatment tank. In such an apparatus, the treatment tank itself is heated to a high temperature under a vacuum pressure or a high-temperature gas is fed into the treatment tank to dry the waste.

  However, since these devices have a complicated configuration, there are problems such as high cost, easy failure, and risk of explosion.

  Therefore, an object of the present invention is to provide a treatment apparatus capable of rapidly and efficiently transpiration of a liquid contained in waste in a treatment apparatus for hydrous waste at a low cost with a simple mechanism. .

  In order to solve the above-mentioned problems, the present invention provides a swingable or pivotable treatment tank for containing hydrous waste, a stirring blade for stirring hydrous waste in the treatment tank, steam and water to be treated. An injection device for injecting, a rotation shaft on which a stirring blade and an injection device are installed, and a rotation shaft having a double pipe structure of a pipe for steam and a pipe for water to be treated, and a bottom of the treatment tank And an aeration device for injecting steam, dismantling the waste by swinging or rotating the processing tank itself and the rotation of the stirring blade, and increasing the moisture content of the waste by injecting the water to be treated. Promote and evaporate the water inside the processing tank by steam injection, and the water that cannot be evaporated and accumulated at the bottom of the processing tank generates fine bubbles in the water by spraying the steam from the aeration device. By promoting evaporation, water in the treatment tank Briefly with evaporated off, it is characterized in that the water for any not discharged to the outside.

  Moreover, the vapor | steam and air discharged | emitted from a processing tank remove | eliminate a malodorous component and a harmful substance completely with a deodorizing apparatus or a dust collector, and discharge | release only harmless gas to air | atmosphere.

  The hydrous waste treatment apparatus of the present invention stirs the object to be treated with a stirring blade, is heated and dried by dry steam that flows into the inside of the treatment tank, and further, the liquid that cannot be completely evaporated and is stored at the bottom of the treatment tank. Since evaporation is promoted by jetting steam from the bottom of the treatment tank, the liquid can be expelled from the outside without any discharge, and the drying process of the object to be treated can be accelerated.

  In addition, unlike the conventional complicated apparatus, the hydrous waste treatment apparatus of the present invention has an efficient treatment capability with a simple mechanism, so that the equipment cost and the maintenance cost can be significantly reduced.

  The purpose of efficiently drying hydrous waste in a short time is to dismantle and agitate the waste by swinging the treatment tank itself and rotating the stirring blades, heating and drying with dry steam, and steam from the bottom of the treatment tank. It was realized by performing aeration with injection.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 6 are views showing an embodiment of the hydrous waste treatment apparatus of the present invention. FIG. 1 is a schematic process diagram showing a treatment process by the waste treatment apparatus of the present invention, and FIGS. 2 and 3 are a schematic side sectional view and a schematic front plan view showing an outline of the waste treatment apparatus of the present invention. 4 is a partial plan view showing the drive unit and the bearings at both ends of the rotary shaft in FIG. 2, and FIGS. 5 and 6 are a side sectional view and a front sectional view showing an injection device attached to the rotary shaft of the waste treatment apparatus. It is.

  As shown in FIGS. 1 and 2, a treatment tank 11 for storing waste, which is an object to be treated, has a rotating shaft 1 provided with a stirring blade 21 and an injection device 22 inside, and further has an aeration at the bottom. The apparatus 23 and the injection apparatus 29 which supplies a vapor | steam in the processing tank 11 are provided.

  The processing tank 11 is a cylindrical body made of a steel plate or the like having a hollow inside, and is formed with an inlet 24 at the top and an outlet 27 at the bottom. The charging port 24 can be opened and closed by a lid 26, and the workpiece 10 is charged into the processing tank 11 from the charging port 24. The lid 26 is provided with an inspection window 28 that allows the inside of the processing tank 11 to be visually observed, and an exhaust port 25 that communicates with the processing tank 11, and exhausts exhaust gas generated in the processing tank 11 to the outside. . The exhaust port 25 is connected to the deodorizing device 19 by an exhaust tube, and steam and air in the treatment tank 11 can be sent to the deodorizing device 19 by an induction fan 18 attached to the exhaust tube. Vapor or air from which malodorous components and the like are removed in the deodorizing device 19 is released from the exhaust pipe to the atmosphere. In addition to the deodorizing device, if a dust collecting device, a temperature reducing device, a neutralizing agent charging device or the like is connected, it is possible to remove harmful substances that cannot be removed by the deodorizing device. An openable / closable discharge port 27 is formed at the bottom of the processing tank 11, and the object to be processed, which has been dried by evaporation of water, is discharged from the discharge port 27 to a discharge receiver 56.

  The treatment tank 11 has a passage through which steam flows between the inner wall and the outer wall, and by supplying the steam to the passage, the wall surface of the treatment tank 11 is heated to raise the temperature inside the tank, Perform an indirect drying process. Further, a jacket 57 having a heat insulating effect is attached to the entire outer surface of the processing tank 11 so as to keep the temperature in the processing tank 11 constant.

  As shown in FIG. 3, the processing tank 11 is installed in a support frame 51, and guide rollers 52 to 54 are attached to the support frame 51, and the guide rollers 52 to 54 support the processing tank. 11 is installed in the support frame 51. By the operation of the guide rollers 52 to 54 and the driving device 31, the processing tank 11 can swing up to an angle of 130 degrees with the rotating shaft 1 as an axis.

  In the present embodiment, the processing tank 11 itself can be swung up to an angle of 130 degrees, but it is also possible to rotate 360 degrees as appropriate.

  The treatment tank 11 has a rotating shaft 1 at the center, and a plurality of stirring blades 21 as stirring means for the processed material are attached to predetermined positions of the rotating shaft 1 and at the opposing portions of the stirring blades 21. Is provided with an injection device 22 for ejecting steam and water to be treated. As shown in FIGS. 2 and 4, the rotary shaft 1 is rotatably supported by bearings 33 and 34, and rotates with a drive device 32 as power. The stirring blade 21 rotates as the rotating shaft 1 is driven, whereby the workpiece 10 is disassembled, crushed and stirred.

  Along with the rotation of the rotating shaft 1, the steam and the water to be treated ejected from the ejection device 22 are ejected radially in the treatment tank 11 and can be brought into contact with the object to be treated 10 on average.

  As shown in FIGS. 5 and 6, the inside of the rotary shaft 1 has a double pipe structure composed of a feed pipe 44 for water to be treated and a feed pipe 45 for steam. And communicates internally. The to-be-processed water 44 fed into the to-be-treated water feed pipe 44 is jetted from the jet port 42 of the ejection device 22, and the steam 47 fed to the steam feed pipe 45 is jetted from the jet port 41.

  A rotary joint 36 and a swivel joint 14 are connected to one end of the rotating shaft 1, and a pipe connected to the boiler 12 and the rotating shaft 1 are connected to each other at the swivel joint 14. A separator 13 is disposed between the boiler 12 and the swivel joint 14 connected by the pipe, and the steam generated in the boiler 12 is heated in the separator 13 to generate dry steam. 1 is supplied to the steam pipe 45 in the inside. The separator 13 is also connected to an aeration apparatus 23 installed at the bottom of the processing tank 11 by a feed pipe, and supplies dry steam to the aeration apparatus 23.

  On the other hand, a rotary joint 37 and a swivel joint 15 are connected to the other end of the rotating shaft 1, and are connected to a pipe connected to the water tank 17 to be treated at the swivel joint 15. The treated water tank 17 stores liquid treated water 30 such as sewage. The treated water feed pipe 44 in the rotary shaft 1 is continuously covered by the high pressure pump 16 disposed in the feed pipe. Treated water is supplied.

  As the stirring blade 21, for example, a T-shaped scraper can be considered, but any type and shape can be appropriately used as long as the workpiece can be disassembled and stirred. Moreover, although the injection apparatus 22 is each installed corresponding to the stirring blade 21 in this Embodiment, it is not necessarily limited to this. Further, a passage for communicating the treated water feed pipe 44 and the steam feed pipe 45 is provided in the stirring blade 21 so that steam or treated water is jetted from the stirring blade 21 and jets of steam, etc. It is also conceivable that the means is integrated with the means.

  A plurality of injection devices 29 are installed at the bottom of the processing tank 11. Each of the injection devices 29 is connected to the separator 13 by a pipe 20. The dry steam generated in the boiler 12 and heated by the separator 13 is supplied to the injection device 29 through the pipe 20 and is injected from the injection device 29 into the treatment tank 11. As a result, the object to be processed 10 stored at the bottom of the processing tank can also be brought into direct contact with the steam.

  The pipe 20 is also connected to the processing tank wall inner port 17, and the dry steam supplied from the separator 13 is sent to a steam flow passage provided between the outer wall and the inner wall of the processing tank 11, thereby The wall surface can be heated. Due to the heating of the wall surface, the inside of the treatment tank 11 becomes a high temperature, and the drying treatment of the workpiece can be promoted.

  A plurality of aeration devices 23 are provided at predetermined positions on the bottom of the processing tank 11. The aeration apparatus 23 can continuously generate fine bubbles in a liquid such as water stored at the bottom of the treatment tank 11 by intermittently injecting air. Since the fine bubbles promote the evaporation of moisture, an efficient evaporation process can be performed.

  The operation of the drive devices 31 and 32, the introduction or injection of steam and water to be treated, the operation of the aeration device, etc. are controlled by a control unit attached to this device. Control is performed based on detection information from various sensors that detect the attached temperature and moisture.

  Next, with reference to FIG. 1, the operation of the water-containing waste treatment apparatus according to this embodiment will be described. First, solid waste such as garbage is opened into the treatment tank 11 through the inlet 24 with the lid 26 opened. After throwing in waste, the lid | cover 26 is closed and a processing apparatus is operated.

  Due to the operation of the processing device, the rotating shaft 1 rotates, whereby the stirring blade 21 rotates, and the waste 10 thrown in by the stirring blade 21 is stirred and disassembled. At this time, the treatment tank 11 itself is also swung or rotated to promote stirring and dismantling of the waste 10.

  Further, along with the rotation of the stirring blade 21 and the processing tank 11, the steam generated in the boiler 12 is sent to the separator 13 to be heated and supplied as dry steam to the steam feed pipe 45 in the rotary shaft 11. The The dry steam 47 is injected into the treatment tank 11 from the injection port 41 in the injection device 22 attached to the rotating shaft 11. At this time, to-be-treated water such as sewage stored in the to-be-treated water tank 17 is supplied into the to-be-treated water pipe 44 in the rotating shaft 11 by the high-pressure pump 16. The supplied treated water 46 is also jetted from the jet port 42 into the treatment tank 11 in the jet device 22.

  Since the steam and the water to be treated ejected from the ejection device 22 are ejected radially with the rotation of the rotating shaft 1, the steam and the water to be treated may come into average contact with the workpiece 10 being agitated by the rotation of the stirring blade 21. Is possible.

  Since the water to be treated is brought into contact with the solid waste that is being stirred to increase its moisture content, disassembly, crushing, and stirring by the stirring blade 21 can be easily performed.

  The dry steam injected into the treatment tank 11 heats the treatment tank 11 at a high temperature and directly contacts and heats the waste. Therefore, evaporation of water contained in the waste disassembled and stirred in the treatment tank 11 Is done efficiently.

  Further, the steam generated in the boiler 12 is supplied via a separator 13 to an injection device 29 provided at the bottom of the processing tank 11 and a processing tank wall inner port 17. The injection device 29 can inject dry steam into the processing tank 11 to heat the inside of the processing tank, and can promote evaporation by bringing the dry steam into direct contact with the workpiece 10 stored at the bottom. . The steam supplied from the processing tank wall inner port 17 to the steam flow passage provided in the wall of the processing tank 11 heats the wall surface of the processing tank 11, and heats the inside of the tank to perform an indirect drying process. In addition, since the processing tank 11 is equipped with the heat insulating jacket 57, the temperature in the processing tank 11 is kept substantially constant.

  The aeration apparatus 23 provided in the bottom part emits air, and thus vapors are generated by continuously generating fine bubbles in a liquid such as water that cannot be evaporated and stored in the bottom part of the treatment tank 11.

  Gases such as steam and air containing bad odor in the treatment tank 11 are sucked and discharged from the exhaust port 25 to the outside of the treatment tank 11 by the attracting fan 18 and passed through the deodorizing device 19 and dust collecting device. Hazardous substances are removed and released into the atmosphere as harmless exhaust.

  The waste from which moisture contained in the drying process has been completely removed is discharged from the discharge port 27. The discharged waste does not generate bad odor, can be stored and transported easily, and can be used as fertilizer.

  Thus, according to the water-containing waste treatment apparatus of the present invention, the water-containing waste can be efficiently disassembled and dried, and can be processed in a short time, including malodorous components and harmful substances. Drainage and gas are never discharged to the outside. For example, when only 100 g of cow dung was put into the apparatus of the present invention, the weight of the waste after the treatment was 30 g, and no waste liquid was discharged. Further, when 20 liters of waste liquid was put into the apparatus of the present invention, the waste liquid was all evaporated in a treatment time of 30 minutes.

  The water-containing waste treatment apparatus of the present invention is not only waste from plants such as garbage, but excrement from livestock, waste liquid from factories, and waste discharged from various industries such as hospitals and hotels. Can be processed. Also, in the food processing, the processing apparatus of the present invention can be used when food is dried.

It is a schematic process drawing which shows the process process by the waste processing apparatus of this invention. It is a schematic side sectional view showing an outline of the waste treatment apparatus of the present invention. FIG. 3 is a schematic front plan view of FIG. 2. It is a partial top view which shows the drive part of the rotating shaft of FIG. 2, and the bearing part of both ends. It is side surface sectional drawing which shows the injection apparatus attached to a rotating shaft. FIG. 6 is a front sectional view of FIG. 5.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rotating shaft 11 Treatment tank 12 Boiler 21 Stirring blade 22 Injection device 23 Aeration device 25 Exhaust port 27 Discharge port 44 Pipe for water to be treated 45 Pipe for steam

Claims (1)

  A swingable or pivotable treatment tank for containing hydrous waste, a stirring blade for stirring the hydrous waste in the treatment tank, an injection device for injecting steam and water to be treated, and an agitation blade and injection device A rotary shaft having a double pipe structure consisting of a steam pipe and a water feed pipe, and an aeration device attached to the bottom of the treatment tank and jetting steam. Dispose of waste by swinging or rotating the processing tank itself and rotation of the stirring blade, promoting disassembly by increasing the water content of the waste by injecting water to be treated, and injecting the inside of the processing tank by injecting steam Water is evaporated at a high temperature, and the water accumulated at the bottom of the processing tank that cannot be evaporated is generated by generating fine bubbles in the water by the injection of steam from the aeration device, thereby promoting evaporation, thereby Characterized by evaporating and removing moisture in a short time Processor of hydrous waste.

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