JP2006000743A - Garbage disposer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cleanly remove foreign matter adhering on the surface of a porous cylinder or the inner surface of a drainage reservoir tank with a simple mechanism. <P>SOLUTION: This garbage disposer is equipped with a crusher 1 and a water separator 2 which separates the garbage crushed by the crusher 1 from water. The water separator 2 is equipped with the porous cylinder 4 made by forming a porous plate into a cylindrical shape, the drainage reservoir tank 10 in which the water up to a prescribed level is stored and the lower part of the porous cylinder 4 is arranged under water, air nozzles 20 for injecting the bottom of the drainage reservoir tank 10 with the air, a lifting screw 5 disposed inside the porous cylinder 4, and a motor 6 for driving the lifting screw 5. The water separator 2 lifts a mixture of garbage and water supplied to the supply port 4A of the porous cylinder 4 with the lifting screw 5 and the mixture is drained before being discharged from a discharge port 4B. The air nozzles 20 inject numberless air bubbles below the surface of the water in the drainage reservoir tank 10, and the foreign matter adhering on the porous cylinder 4 or the drainage reservoir tank 10 is removed by letting the air bubbles lift from the bottom of the drainage reservoir tank 10 upward to the outside of the porous cylinder 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a raw dust processing apparatus, and is particularly suitable for being connected to a sink and crushing raw dust discharged together with water from the sink and separating it from water to treat it by the action of microorganisms. Relates to the device.

  Dust generated when cooking in a sink can be drained together with water from the sink outlet and used most conveniently. For this purpose, a crusher called “disposer” has been developed. The disposer is connected to the drain outlet of the sink, crushes raw dust supplied from the drain outlet, and drains it together with water into sewage. The disposer is an extremely convenient device for the user, but has a drawback that it takes much time to treat the sewage because the crushed raw dust is drained into the sewage.

This drawback can be resolved by separating raw dust crushed by the disposer from the water and draining only the water into the sewage. The separated raw dust of water can then be decomposed by the action of microorganisms to significantly reduce the volume. Raw dust processing devices that achieve this have been developed. (See Patent Document 1)
Japanese Patent Laid-Open No. 5-184961

  As shown in FIG. 1, the raw dust processing apparatus described in this publication supplies raw dust crushed by the disposer 31 to the inside of the porous cylinder 34, and separates water and raw dust by the porous cylinder 34. To do. The perforated tube 34 is provided with a raising screw 35 that raises raw dust supplied to the lower part. When the ascending screw 35 is rotated by the motor 36, the spiral fin 33 raises raw dust inside the perforated tube 34. Water permeates through the perforated tube 34 and is separated from raw dust. The raised raw dust is drained and discharged from a discharge port 37 provided in the upper part of the porous tube 34.

  The raw dust processing apparatus of FIG. 1 can be conveniently used by draining raw dust together with water from a drain outlet of a sink. Moreover, since the water from which the raw dust is separated is drained into the sewage, the raw dust is not directly discharged into the sewage, and the sewage treatment can be simplified. Therefore, the user's sewage treatment can be in an ideal state. However, since this apparatus supplies raw dust to the perforated cylinder for a long period of time and separates water and raw dust, foreign matter adheres to the surface of the perforated cylinder, and this foreign matter deteriorates drainage of the perforated cylinder. If the perforated tube cannot drain water efficiently, the raw dust contains a large amount of water, which makes subsequent raw dust treatment difficult. In order to eliminate this drawback, the apparatus shown in FIG. 1 has a hard pin 32 fixed to the top portion of the fin 33 of the ascending screw 35. The hard pin 32 slides on the inner surface of the porous cylinder 34 and removes foreign matters adhering to the inner surface of the porous cylinder 34.

  As described above, the device that slides the hard pin on the inner surface of the porous cylinder can remove the foreign matter adhering to the line on which the hard pin slides, but cannot remove the foreign matter attached to the outer surface of the porous cylinder. Therefore, when the apparatus having this structure is used for a long period of time, the permeation holes of the perforated cylinder are clogged, and there is a drawback that it is impossible to drain water efficiently.

  Further, this apparatus has a drawback that it cannot remove the dirt in the container in which the porous cylinder is disposed. Water and fine foreign matters that are separated from raw dust and discharged from the perforated cylinder cause dirt in the container in which the perforated cylinder is disposed. In particular, when used over a long period of time, foreign matter adheres to the inner surface of the container, and this foreign matter causes a bad odor. Therefore, it is extremely important for a raw dust treatment apparatus to clean not only the surface of the porous cylinder but also the inner surface of the container in which the porous cylinder is disposed to prevent malodor.

The present invention has been developed for the purpose of solving such drawbacks. An important object of the present invention is that it is possible to cleanly remove foreign substances adhering to the surface of the porous cylinder with a simple mechanism, and to prevent clogging of the water-permeable holes without causing local wear etc. on the porous cylinder. An object of the present invention is to provide a processing apparatus for raw dust that can be efficiently drained and discharged.
Furthermore, another important object of the present invention is to provide a raw dust processing apparatus that can effectively prevent the generation of bad odor by cleaning the inner surface of a container in which a porous cylinder is disposed with a simple mechanism. is there.

  The raw dust processing apparatus of the present invention includes a crusher 1 that crushes raw dust supplied together with water, and a water separator 2 that separates the raw dust crushed by the crusher 1 from water. The water separator 2 includes a porous tube 4 in which a porous plate that allows water to permeate is formed in a cylindrical shape, and the porous tube 4 is disposed, and water is stored at a predetermined water surface level so that a lower portion of the porous tube 4 is formed. A drainage tank 10 disposed under the surface of the water, an air nozzle 20 for injecting air to the bottom of the drainage tank 10 and injecting countless bubbles to the outside of the porous cylinder 4, and inside the porous cylinder 4, The ascending screw 5 is disposed so as to be rotatable, and the motor 6 is configured to rotate the ascending screw 5 in a direction in which raw dust is raised. The porous cylinder 4 is closed at the bottom with a bottom plate 8, and a supply port 4 </ b> A for a mixture of raw dust and water is opened at the bottom, and a discharge port 4 </ b> B for discharging raw dust from which water has been separated is provided at the top. ing. In the water separator 2, the motor 6 rotates the ascending screw 5, drains the mixture of raw dust and water supplied to the lower supply port 4 </ b> A with the ascending screw 5, drains the drained raw dust. It discharges from the discharge port 4B. Furthermore, the air nozzle 20 injects countless bubbles below the water surface of the drainage tank 10, and raises the bubbles from the bottom of the drainage tank 10 to the outside of the porous cylinder 4. Remove foreign material adhering to the inner surface.

  In the raw dust processing apparatus of the present invention, the air nozzle 20 can inject air to a plurality of locations around the porous cylinder 4. In addition, the raw dust processing apparatus of the present invention includes an air pump connected to the air nozzle 20, and continuously operates the air pump to inject air into the drainage tank 10 or control it with a timer. Alternatively, the air can be intermittently injected into the drainage reservoir 10 by operating together with the motor 6 that operates the ascending screw 5.

  Further, the raw dust processing apparatus of the present invention includes a scraping plate 7 that is connected to the ascending screw 5 and rotates along the inner surface of the porous tube 4. The scraping plate 7 is attached to the inner surface of the porous tube 4. It is possible to scrape off foreign matter adhering to the inner surface of the porous tube 4 by rotating along the direction.

  The scraping plate 7 is connected to the horizontal scraping portion 7A that rotates on the upper surface of the bottom plate 8 of the perforated tube 4 and the vertical that rotates along the inner surface of the perforated tube 4 while being connected to the horizontal scraping portion 7A at a right angle. It can have scraping part 7B.

  Further, the scraping plate 7 is provided with a non-circular through hole 7C in the horizontal scraping portion 7A, and a drive shaft 12 for rotating the lifting screw 5 is inserted into the through hole 7C so that the scraping plate 7 is lifted by the lifting screw. 5 can be connected. The drive shaft 12 can be shaped so as not to rotate but move in the axial direction with respect to the non-circular through hole 7C. When the motor 6 rotates the drive shaft 12, the scraping plate 7 is rotated together with the ascending screw 5, and the horizontal scraping portion 7 A falls along the drive shaft 12 with its own weight, so that the bottom plate of the porous cylinder 4 The raw dust accumulated on the bottom plate 8 can be scraped off by sliding on the upper surface of 8.

  Further, in the raw dust processing apparatus of the present invention, the biodegradation tank 3 for decomposing raw dust by the action of microorganisms is connected to the discharge port 4B of the porous cylinder 4, and the raw dust is transferred from the porous cylinder 4 to the biodegradation tank 3. Can be decomposed. Furthermore, the raw dust processing apparatus of the present invention connects a drying tank for drying raw dust to the discharge port of the porous cylinder, and supplies the raw dust from the porous cylinder to the drying tank. Water can be removed to reduce the volume.

  The raw dust processing apparatus of the present invention has a feature that it can cleanly remove foreign substances adhering to the surface of the porous cylinder and the inner surface of the drainage tank in which the porous cylinder is disposed by a simple mechanism. The water separator of the raw dust processing apparatus of the present invention has a porous cylinder disposed in a drainage tank storing water, and air is sprayed to the bottom of the drainage tank with an air nozzle, This is because the innumerable bubbles that are sprayed on the inside of the drainage tank are raised from the bottom of the drainage tank to the outside of the porous cylinder to remove foreign substances adhering to the outer surface of the porous cylinder and the inner surface of the drainage tank. The air jetted from the air nozzle becomes countless bubbles, and the water stored in the drainage tank is vigorously stirred while ascending in the water of the drainage tank. Remove the adhering foreign matter. Furthermore, when bubbles are repelled in water, ultrasonic waves are generated, and the ultrasonic waves stimulate the surface of the porous cylinder and the inner surface of the drainage tank to further remove foreign substances attached thereto. Thus, the processing apparatus of the present invention can cleanly remove foreign substances adhering to the surface of the porous cylinder and the inner surface of the drainage tank with a simple mechanism. Therefore, the raw dust processing device can effectively prevent clogging of the water passage holes of the porous cylinder, drain the raw dust efficiently, and remove foreign substances adhering to the surface of the porous cylinder and the inner surface of the drainage tank. It has the feature that it can be removed to effectively prevent the generation of malodors. Furthermore, the countless bubbles ejected from the air nozzle dissolve oxygen in the water in the drainage tank to increase the dissolved oxygen concentration, which is also effective in preventing malodors.

  Furthermore, the raw dust processing apparatus according to the present invention does not remove foreign substances by mechanically bringing a brush or the like into contact with the surface of the porous tube as in the prior art, but is innumerable generated by air injected from an air nozzle. The surface of the perforated cylinder is cleaned by vigorous water flow and ultrasonic waves caused by bubbles, preventing clogging of the perforated cylinder without causing local wear on the surface of the perforated cylinder from which foreign substances are removed, Efficiently drains and discharges.

  Embodiments of the present invention will be described below with reference to the drawings. However, the embodiment shown below exemplifies the raw dust processing apparatus for embodying the technical idea of the present invention, and the present invention does not specify the raw dust processing apparatus as follows.

  Further, in this specification, in order to facilitate understanding of the scope of claims, numbers corresponding to the members shown in the examples are indicated in the “claims” and “means for solving problems” sections. It is added to the members. However, the members shown in the claims are not limited to the members in the embodiments.

  The raw dust treatment apparatus of the present invention is used for crushing raw dust supplied together with water, draining the crushed raw dust and draining it, and is particularly useful when connected to a drain outlet of a sink. The However, the raw dust processing apparatus of the present invention is not necessarily connected to the drain outlet of the sink, but can be used as an apparatus for separating raw dust contained in sewage, for example, by connecting to a sewer.

  The raw dust processing apparatus shown in FIG. 2 includes a crusher 1 that crushes raw dust supplied together with water, and a water separator 2 that separates the raw dust crushed by the crusher 1 from water. . Furthermore, the apparatus of the figure has connected the biodegradation tank 3 which decomposes | disassembles the raw dust drained with the water separator 2 by the effect | action of microorganisms.

  The crusher 1 uses a commercially available disposer. The disposer is connected to the drain outlet of the sink, crushes the raw dust supplied with the water, and discharges it together with the water. Disposer crushes raw dust with a cutter that rotates at high speed, but it is not always necessary to use a disposer in the crusher, for example, crushing raw dust with a high-speed rotating cutter with a structure different from that of the disposer. Alternatively, a crusher of any mechanism capable of crushing raw dust supplied with water, such as one that supplies raw dust to a pair of relatively moving gaps and crushes and crushes them, can be used. In particular, as shown in FIG. 2, in an apparatus for decomposing drained raw dust discharged from the water separator 2 in the biodegradation tank 3, it is not always necessary to cut the raw dust short. This is because it is decomposed in the biodegradation tank 3 and almost disappeared.

  The reason why the raw dust supplied to the water separator 2 is crushed by the crusher 1 is to allow various shapes of raw dust to pass through the water separator 2 smoothly. Further, in the apparatus for connecting the biodegradation tank 3 to the water separator 2, the biodegradation tank 3 quickly decomposes the dust. Various types of raw dust are mixed. For example, raw dust such as watermelon and radish chips may be supplied in a very large lump. It is the crusher 1 that crushes such large raw dust and smoothly passes it through the water separator 2. Therefore, all the crushers 1 that can crush raw dust to a size that can pass through the water separator 2 can be used.

  As shown in FIG. 3 to FIG. 5, the water separator 2 has a porous cylinder 4 that raises the crushed raw dust while draining, and air in the drainage tank 10 in which the porous cylinder 4 is disposed. An air nozzle 20 for spraying, a raising screw 5 for raising raw dust, a motor 6 for rotating the raising screw 5, and a raising screw 5 connected to the raising screw 5. A scraping plate 7 that is rotated together to remove foreign substances adhering to the inner surface of the porous tube 4 is provided.

  The porous cylinder 4 is formed in a cylindrical shape with a porous plate that allows water to pass therethrough. The perforated plate is a metal plate such as stainless steel or a metal net provided with countless through holes. The bottom of the porous cylinder 4 is closed with a bottom plate 8, and a supply port 4A for the mixture of raw dust and water is opened at the bottom so that a mixture of raw dust and water can be supplied from the crusher 1. ing. In the illustrated porous cylinder 4, a part of the porous plate is cut off to open the supply port 4A. The supply port 4 </ b> A is connected to the discharge port 1 </ b> A of the crusher 1 through the transfer duct 9. In the apparatus of FIG. 2, the transfer duct 9 is inclined downward toward the supply port 4 </ b> A of the porous tube 4. The transfer duct 9 can naturally flow the mixture of crushed raw dust and water discharged from the discharge port 1 </ b> A of the crusher 1 and flow into the supply port 4 </ b> A of the porous tube 4.

  In the illustrated apparatus, the porous cylinder 4 is provided inside the drainage tank 10. The drainage tank 10 stores water at a predetermined level. The drainage tank 10 of FIG. The overflow port 11 overflows the water stored in the drainage tank 10 and drains it to keep the water level of the drainage tank 10 constant. The supply port 4 </ b> A of the porous cylinder 4 is opened below the water surface of the drainage tank 10, and raw dust and water are supplied by the transfer duct 9. The transfer duct 9 is disposed at the bottom of the drainage tank 10 and has a tip connected to the supply port 4 </ b> A of the porous tube 4. This transfer duct 9 penetrates the wall surface of the drainage reservoir 10 in a watertight manner and is extended to the outside, and connects an extension portion outside the crusher 1 to the discharge port 1 </ b> A of the crusher 1. The apparatus shown in FIG. 2 arranges the supply port 4 </ b> A below the crusher 1, and naturally feeds water and raw dust discharged from the crusher 1 into the transfer duct 9 and supplies them to the porous cylinder 4. . The water supplied from the crusher 1 to the porous cylinder 4 does not flow backward from the porous cylinder 4 to the crusher 1.

  As shown in the figure, the structure in which raw dust and water are naturally flowed down to the supply port 4A of the perforated cylinder 4 through the transfer duct 9 and transferred is simple, and the porous crusher 1 is porous without causing the water to flow backward. Both raw dust and water can be transferred to the cylinder 4. However, the processing apparatus of the present invention connects a pump (not shown) forcibly transferring a mixture of crushed raw dust and water between the crusher and the perforated cylinder, and crushes with this pump. A mixture of raw dust and water can also be transferred from the machine to the perforated tube.

  Furthermore, the porous cylinder 4 has an outlet 4B for discharging drained raw dust at the top. In the illustrated porous cylinder 4, a part of the porous plate is cut out to open the discharge port 4B. The discharge port does not necessarily have to be provided by cutting away a part of the porous tube. It is also possible to open the upper end of the perforated tube and use it as a discharge port. Since the discharge port 4 </ b> B discharges the drained raw dust, the discharge port 4 </ b> B is opened above the water level of the drainage tank 10. The porous cylinder 4 shown in the figure is arranged in the vertical direction. However, the perforated tube can also be arranged in a posture inclined from the vertical direction. The perforated cylinder arranged in an inclined posture also has a supply port provided in the lower part disposed below the water surface of the drainage tank, and a discharge port provided in the upper part opened above the water level of the drainage tank.

  The bottom surface of the porous cylinder 4 is closed by a bottom plate 8. The bottom plate 8 is a metal plate such as stainless steel or a hard plastic plate. The bottom plate 8 has a smooth horizontal surface on the top surface. The bottom plate 8 of the porous cylinder 4 can also be constituted by the bottom plate 10 </ b> A of the drainage tank 10. That is, the bottom plate 10 </ b> A of the drainage tank 10 can be used as the bottom plate of the porous cylinder 4. Further, the bottom plate 8 of the porous cylinder 4 made of another metal plate or the like can be fixed on the bottom plate 10 </ b> A of the drain reservoir 10. According to this structure, since the bottom surface of the porous cylinder 4 can be made higher than the bottom surface of the drainage reservoir 10, bubbles can be ejected from the air nozzle 20 from a portion located further below the bottom surface of the porous cylinder 4.

  The air nozzle 20 injects air to the bottom of the drainage reservoir 10 and injects countless bubbles to the outside of the porous cylinder 4. Innumerable bubbles rise in the water of the drainage tank 10 to remove foreign substances adhering to the outside of the porous cylinder 4 and the inner surface of the drainage tank 10. In particular, by bringing the nozzle hole of the air nozzle 20 close to the bottom surface of the drainage reservoir 10, foreign substances adhering to the bottom surface can be more effectively removed. The air jetted from the air nozzle 20 becomes countless bubbles and rises vigorously in the water in the drainage tank 10. The bubbles vigorously agitate the water stored in the drainage tank 10 to remove foreign matters adhering to the surface of the porous cylinder 4 and the inner surface of the drainage tank 10. Furthermore, bubbles generate ultrasonic waves when they can be repelled in water, and the ultrasonic waves stimulate the surface of the porous cylinder 4 and the inner surface of the drainage tank 10 to further remove foreign substances attached thereto. The bubbles do not remove foreign matter by mechanically bringing a brush or the like into contact with the surface of the porous tube 4 or the inner surface of the drainage tank 10. The surface of the perforated tube 4 and the inner surface of the drainage tank 10 are cleaned with intense water flow and ultrasonic waves. Therefore, the porous cylinder 4 and the drainage tank 10 from which the foreign matter on the surface is removed by bubbles are not worn on the surface for the sake of cleanliness, and the foreign matter can be removed while reducing damage.

  Furthermore, the countless bubbles ejected from the air nozzle 20 may increase the dissolved oxygen concentration in the water in the drain reservoir 10 and prevent the generation of malodor. The water remaining at the bottom of the drainage reservoir 10 is water separated from raw dust and contains components that cause odor such as fine foreign matter. Therefore, the water itself remaining in the drainage tank 10 also causes bad odor. Since the raw dust processing apparatus of the present invention can increase the dissolved oxygen concentration in the water in the drainage tank 10 by injecting countless bubbles from the air nozzle 20 to dissolve oxygen in the water, it is effective in generating bad odors. Can be prevented.

  The countless bubbles injected from the air nozzle 20 into the water in the drain reservoir 10 rise while diffusing, and clean the surface of the porous cylinder 4 and the inner surface of the drain reservoir 10 in a wide area. In the apparatus shown in FIGS. 4 and 5, air nozzles 20 are arranged on opposite sides of the porous cylinder 4, and air is injected into the drainage reservoir 10 from two places. Further, the air nozzle 20 shown in FIG. 6 has a feature that the surface of the porous tube 4 can be more uniformly cleaned. The air nozzle 20 is an injection pipe that opens a large number of injection holes 20A. The injection pipe is disposed around the perforated cylinder 4 and is disposed at the bottom of the drainage reservoir 10. The air nozzle 20 composed of this injection pipe supplies pressurized air and injects air from the numerous injection holes 20A to generate countless bubbles.

  The air nozzle 20 is connected to an air pump (not shown). The air pump is continuously operated and constantly injects air into the drainage tank 10 to clean the surface of the porous cylinder 4 and the inner surface of the drainage tank 10, or is controlled by a timer, or alternatively, the ascending screw 5 is turned on. It is operated together with the motor 6 to be operated, and air is intermittently injected into the drainage reservoir 10 to clean the surface of the porous cylinder 4 and the inner surface of the drainage reservoir 10. A device that continuously operates the air pump can clean the porous cylinder 4 most cleanly, but consumes more power. The device that operates the air pump intermittently with a timer can clean the porous cylinder 4 and the drainage tank 10 while reducing power consumption. In addition, the device operated together with the ascending screw 5 has a feature that the porous cylinder 4 and the drainage reservoir 10 can be cleaned cleanly when raw dust is supplied while reducing power consumption.

  The ascending screw 5 is provided with a spiral fin 5B on the surface of the cylindrical shaft 5A. The ascending screw 5 is arranged inside the porous cylinder 4 so as to be rotated inside the porous cylinder 4. In other words, the ascending screw 5 and the perforated cylinder 4 are arranged coaxially with the perforated cylinder 4 so that the central axes thereof coincide. In the raw dust processing apparatus shown in the figure, the perforated cylinder 4 and the ascending screw 5 are arranged in a posture in which the central axis is a vertical direction. Although not shown, the perforated tube and the ascending screw can be in a posture in which the central axis is slightly inclined.

  The ascending screw 5 is rotated in a direction in which raw dust supplied to the porous cylinder 4 is elevated by the spiral fins 5B. The ascending screw 5 is rotated by a motor 6. The ascending screw 5 shown in FIGS. 3 and 7 is provided with a connecting recess 5a for connecting the drive shaft 12 to the lower surface of the cylindrical shaft 5A, and is rotated via the drive shaft 12 inserted into the connecting recess 5a. The drive shaft 12 is connected to the tip end of the rotation shaft 6A of the motor 6 that penetrates the bottom plate 8 in a watertight manner. The drive shaft 12 has a non-circular planar shape, for example, a polygon. The connecting recess 5 a of the ascending screw 5 is connected so as not to rotate the drive shaft 12 as an inner shape along the outer shape of the drive shaft 12. However, although not shown, the ascending screw can be connected to a motor by providing a connecting portion that protrudes downward from the lower surface of the cylindrical shaft and penetrating the connecting portion so that the bottom plate can be rotated in a watertight manner. Furthermore, although the ascending screw 5 shown in the drawing is directly connected to the rotating shaft 6A of the motor 6 via the drive shaft 12, the ascending screw does not necessarily need to be directly connected to the motor, and a gear mechanism, pulley and belt. It can also be rotationally driven through a drive mechanism such as. The drive mechanism that drives the ascending screw can adjust the rotation speed of the ascending screw relative to the motor by adjusting the gear ratio of the gear, the radius of the pulley, and the like.

  The ascending screw 5 rotates while making the top edge of the fin 5B approach the inner surface of the perforated cylinder 4 or sliding in contact, and removes dust from the gap between the top edge of the fin 5B and the inner surface of the perforated cylinder 4. Raises raw dust so that it does not fall. Further, the ascending screw 5 in the figure has a cylindrical shaft 5A thickened toward the discharge port 4B. The ascending screw 5 can drain the raw dust sufficiently. Since the cylindrical shaft 5A is thickened toward the discharge port 4B, the gap between the cylindrical shaft 5A and the inner surface of the porous cylinder 4 is gradually narrowed toward the discharge port 4B, and the discharge port is in a state where raw dust is squeezed. It is because it is discharged from 4B. The fully drained raw dust has a low water content and is quickly decomposed in the biodegradation tank 3.

  The scraping plate 7 rotates along the inner surface of the porous cylinder 4 and scrapes off and removes foreign matters adhering to the inner surface of the porous cylinder 4. The scraping plate 7 is connected to the horizontal scraping portion 7A rotating on the upper surface of the bottom plate 8 of the porous cylinder 4, the horizontal scraping section 7A, and the horizontal scraping section 7A at a right angle so as to And a vertical scraping portion 7B that rotates along the inner surface. The scraping plate 7 shown in the figure has a shape in which a metal plate such as stainless steel is bent into a U shape and the vertical scraping portion 7B is connected to both ends of the horizontal scraping portion 7A. The horizontal scraping portion 7A and the vertical scraping portion 7B have a width of 1/10 to 1/2, preferably 1/5 to 1/3, of the diameter of the porous tube 4.

  The scraping plate 7 is connected to the ascending screw 5 and is rotated together with the ascending screw 5. As shown in FIG. 7, the scraping plate 7 is rotated via the drive shaft 12 with a horizontal scraping portion 7 </ b> A connected to the drive shaft 12 that rotates the lifting screw 5. The horizontal scraping unit 7 </ b> A is connected to the drive shaft 12 and rotated by the drive shaft 12 in a state where it can move up and down. In order to realize this, the horizontal scraping portion 7A is provided with a non-circular through hole 7C at the center. The drive shaft 12 has a planar shape that can move in the axial direction without rotating into the noncircular through hole 7C. For example, the horizontal scraping portion 7A of the scraping plate 7 is provided with a polygonal or elliptical through hole 7C, and the outer shape of the drive shaft 12 is more than the inner shape of the through hole 7C of the horizontal scraping portion 7A. Slightly thinner. According to this structure, the horizontal scraping portion 7 </ b> A of the scraping plate 7 falls on the upper surface of the bottom plate 8 by its own weight along the drive shaft 12. Therefore, the horizontal scraping portion 7 </ b> A rotated by the drive shaft 12 always slides on the upper surface of the bottom plate 8. For this reason, the rotating horizontal scraping portion 7 </ b> A always rotates while scraping off the foreign matter adhering to the upper surface of the bottom plate 8. As shown in FIGS. 7 and 8, the scraping plate 7 having this shape can scrape foreign matter adhering to the bottom plate 8 more efficiently by making the front edge 7 a of the horizontal scraping portion 7 </ b> A into a blade shape.

  The vertical scraping part 7 </ b> B approaches the inner surface of the porous tube 4 or slides on the inner surface of the porous tube 4 to remove foreign matters attached to the inner surface of the porous tube 4. The vertical scraping portion 7 </ b> B formed by bending a metal plate can efficiently scrape foreign matter adhering to the inner surface of the porous cylinder 4 by sliding the edge portion along the inner surface of the porous cylinder 4. Furthermore, as shown in FIG. 8, the vertical scraping portion 7 </ b> B can also scrape foreign matter adhering to the inner surface of the porous cylinder 4 more efficiently by making the front edge 7 b into a blade shape.

  The ascending screw 5 is provided with a recess 13 into which the vertical scraping portion 7B is fitted at the top edge of the fin 5B. The scraping plate 7 is fitted with the vertical scraping portion 7B in the concave portion 13 provided in the fin 5B and rotates together with the ascending screw 5. In this structure, both the top edge of the fin 5B and the vertical scraping portion 7B can be moved in a state in which the inner surface of the porous tube 4 is brought close to or slid on the inner surface. The vertical scraping portion 7B has its upper end positioned below the water surface of the drainage tank 10 to remove foreign matter adhering to the inner surface of the porous tube 4 below the water surface of the drainage tank 10, or its upper end from the water surface of the drainage tank. Further, it protrudes upward to remove foreign substances adhering to the inner surface of the porous tube below the water surface and above the water surface.

  The raw dust processing apparatus having the above structure crushes raw dust with the crusher 1, and supplies the crushed raw dust together with water to the porous cylinder 4 from the supply port 4A. The raw dust supplied to the porous cylinder 4 is raised by the raising screw 5 rotated by the motor 6. The raised raw dust is drained by allowing water to pass through the porous tube 4. The drained raw dust is discharged from a discharge port 4B opened at the top of the porous tube 4. At this time, the scraping plate 7 is rotated together with the ascending screw 5. The scraping plate 7 rotates along the inner surface of the porous cylinder 4 and scrapes foreign matter adhering to the inner surface of the porous cylinder 4. Accordingly, the supplied raw dust is efficiently drained and discharged while preventing foreign matter from adhering to the inner surface of the porous tube 4. In particular, the porous cylinder 4 whose inner surface is cleanly held by the scraping plate 7 has good water passage, and drains raw dust efficiently.

  The raw dust discharged from the porous cylinder 4 is supplied to the biodegradation tank 3 and decomposed. The biodegradation tank 3 includes a stirring member 14 for stirring the supplied raw dust, a heater 15 for heating the raw dust in the biodegradation tank 3 to a predetermined temperature, a motor 16 for driving the stirring member 14, and a motor. The control means 17 which controls the driving | operation of 16 and makes the motor 16 operate intermittently at the set time interval, and the ventilation means 18 which ventilates the air of the biodegradation tank 3 are provided. Furthermore, the biodegradation tank 3 is filled with a hygroscopic member 19 to which bacteria including aerobic bacteria that decompose raw dust are added. The hygroscopic member 19 and raw dust are stirred by the stirring member 14 and decomposed.

  Sawdust is used as the hygroscopic member 19 filled in the biodegradation tank 3. Sawdust is provided with physical properties preferable as a moisture absorbing member. This is because it is abundant as waste, inexpensive and has appropriate hygroscopicity. Cedar sawdust is best for sawdust. However, the hygroscopic member 19 can use all hygroscopic powders that can inhabit bacteria instead of sawdust.

  The bacteria added to the hygroscopic member 19 can be used only with aerobic bacteria. However, facultative anaerobes can be added in addition to aerobic bacteria. More preferably, in addition to bacteria, an enzyme is also added.

  Since the raw dust processing apparatus having the above structure decomposes the drained raw dust in the biodegradation tank 3, the volume of the raw dust discharged from the sink can be significantly reduced to 1/10 to 1/20. For this reason, it is possible to significantly reduce the amount of decomposed dust deposited in the biodegradation tank 3.

  However, the raw dust processing apparatus does not necessarily have a biodegradation tank and decomposes the raw dust by the action of microorganisms to reduce the volume of the raw dust. Although the raw dust processing apparatus of the present invention is not shown, a drying tank for drying the drained raw dust is provided, and the volume of the raw dust can be reduced by removing moisture from the raw dust in this drying tank. This drying tank is also equipped with a stirring member that stirs the supplied raw dust and a heater that heats the raw dust to a predetermined temperature, and the volume is efficiently reduced by drying the raw dust while stirring it with the stirring member. it can.

  In the above processing apparatus, when raw dust and water are supplied to the crusher 1, the crusher 1 detects this and starts operation to crush the raw dust. When the crusher 1 detects the supply of raw dust, the motor 6 that rotates the ascending screw 5 also starts operation, drains the raw dust supplied from the crusher 1 and discharges it to the biodegradation tank 3. The crusher 1 stops when raw dust is no longer supplied. The motor 6 of the ascending screw 5 stops the operation after draining raw dust supplied from the crusher 1 and discharging it to the biodegradation tank 3. The motor 6 of the ascending screw 5 can stop after a certain period of time after the crusher 1 has stopped operating, and drain the raw dust supplied from the crusher 1 to discharge it.

It is sectional drawing which shows the conventional processing apparatus of raw dust. It is a schematic sectional drawing which shows the processing apparatus of the raw dust concerning one Example of this invention. It is an expanded sectional view of the water separator of the processing apparatus of the raw dust shown in FIG. It is the front view which looked at the water separator shown in FIG. 3 from the direction shown by arrow A. It is a perspective view which shows the porous cylinder of the water separator shown in FIG. It is a top view which shows another example of an air nozzle. It is a disassembled perspective view which shows the connection structure of a raise screw and a scraping plate. It is a top view which shows another example of a scraping plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Crusher 1A ... Discharge port 2 ... Water separator 3 ... Biodegradation tank 4 ... Porous cylinder 4A ... Supply port 4B ... Discharge port 5 ... Ascending screw 5A ... Cylindrical shaft 5B ... Fin
5a ... Connection recess 6 ... Motor 6A ... Rotating shaft 7 ... Scraping plate 7A ... Horizontal scraping part 7B ... Vertical scraping part
7C ... through hole
7a ... Leading edge 7b ... Leading edge 8 ... Bottom plate 9 ... Transfer duct 10 ... Drainage reservoir 10A ... Bottom plate 11 ... Overflow port 12 ... Drive shaft 13 ... Recess 14 ... Stirring member 15 ... Heater 16 ... Motor 17 ... Control means 18 ... Ventilation Means 19 ... Hygroscopic member 20 ... Air nozzle 20A ... Injection hole 31 ... Disposer 32 ... Hard pin 33 ... Fin 34 ... Porous cylinder 35 ... Lifting screw 36 ... Motor 37 ... Discharge port

Claims (8)

A dust processing apparatus comprising a crusher (1) for crushing raw dust supplied together with water and a water separator (2) for separating the raw dust crushed by the crusher (1) from water In
The water separator (2) has a porous cylinder (4) formed by forming a porous plate that allows water to permeate in a cylindrical shape, and the porous cylinder (4), and stores water at a predetermined water surface level. A drainage tank (10) in which the lower part of the perforated cylinder (4) is disposed below the water surface, and air is sprayed to the bottom of the drainage tank (10) to create countless bubbles on the outside of the perforated cylinder (4). The air nozzle (20) for spraying, the ascending screw (5) arranged to rotate inside the perforated tube (4), and the ascending screw (5) are rotated in the direction of raising the dust. Motor (6), the porous cylinder (4) is closed at the bottom by the bottom plate (8), and the supply port (4A) for the mixture of raw dust and water is opened at the bottom to separate the water A discharge port (4B) for discharging the generated raw dust is provided at the top,
The motor (6) rotates the ascending screw (5) to raise the mixture of raw dust and water supplied to the lower supply port (4A) with the ascending screw (5) and drain the water. Dust is discharged from the discharge port (4B), and the air nozzle (20) injects countless bubbles below the water surface of the drainage tank (10), and these bubbles are discharged from the bottom of the drainage tank (10) to the perforated cylinder (4). The dust processing apparatus is configured to remove foreign substances adhering to the outer surface of the porous cylinder (4) and the inner surface of the drainage tank (10).   The raw dust processing apparatus according to claim 1, wherein the air nozzle (20) injects air to a plurality of locations around the perforated tube (4).   It has an air pump connected to the air nozzle (20), and this air pump is continuously operated to always inject air into the drainage tank (10), or controlled by a timer, or also ascending screw 2. The apparatus for treating raw dust according to claim 1, wherein the apparatus is operated together with a motor (6) for operating (5), and intermittently injects air into the drainage tank (10).   The scraper plate (7) is connected to the ascending screw (5) and rotates along the inner surface of the porous tube (4), and the scraper plate (7) is disposed along the inner surface of the porous tube (4). The apparatus for treating raw dust according to claim 1, wherein the foreign matter adhering to the inner surface of the perforated cylinder (4) is scraped off by rotation.   The scraping plate (7) is connected to the horizontal scraping portion (7A) rotating on the upper surface of the bottom plate (8) of the perforated cylinder (4), and is connected to the horizontal scraping section (7A) at a right angle so that the perforated cylinder The raw dust processing apparatus according to claim 4, further comprising a vertical scraping portion (7B) that rotates along the inner surface of (4).   A non-circular through hole (7C) is provided in the horizontal scraping portion (7A), and a drive shaft (12) for rotating the ascending screw (5) is inserted into the through hole (7C). ) Has a shape that does not rotate in the non-circular through hole (7C) but can move in the axial direction, and when the motor (6) rotates the drive shaft (12), the scraping plate (7) is also rotated together, Further, the horizontal scraping part (7A) of the scraping plate (7) falls along the drive shaft (12) by its own weight and slides on the top surface of the bottom plate (8) of the perforated cylinder (4) to the bottom plate (8). 6. The raw dust processing apparatus according to claim 5, wherein the raw dust that accumulates is scraped off.   A biodegradation tank (3) that decomposes raw dust by the action of microorganisms is connected to the discharge port (4B) of the porous cylinder (4), and dust is transferred from the porous cylinder (4) to the biodegradation tank (3). The raw dust processing apparatus according to claim 1, wherein the raw dust processing apparatus is supplied and decomposed. A drying tank that dries raw dust is connected to the discharge port of the perforated cylinder, and the dust is supplied from the perforated cylinder to the drying tank, and the volume of the dust is reduced by removing moisture from the raw dust in the drying tank. The raw dust processing apparatus according to claim 1.

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