JP5048469B2 - Organic waste treatment equipment - Google Patents

Description

  The present invention relates to an organic waste processing apparatus for decomposing organic waste such as garbage and a method for mixing gas into sediments used therefor, and air supply for mixing air into fluidized organic waste It relates to the improvement of the mechanism.

  In general, this type of processing apparatus is widely known as a garbage processing apparatus for facilities such as household garbage processing and restaurants. And the processing method is a method of pulverizing and drying the waste contained in the treatment tank, a method of fermenting the waste with microorganisms and converting it into compost (soil improver), and a method of fermenting and decomposing the waste with microorganisms. Has been adopted.

Among these treatment methods, the method of fermenting and decomposing organic waste with microorganisms and decomposing it into carbon dioxide (CO ₂ ) and water (H ₂ O) does not require treatment of the residue and may cause bad odor. Since it is not, it has been widely used.

  For example, Patent Document 1 (Japanese Patent Application Laid-Open No. 2001-170605) includes a processing tank for storing organic waste and a stirring blade provided in the processing tank, and the organic waste and an aerobic microorganism are provided in the processing tank. An apparatus is disclosed in which a decomposition treatment is performed while mixing and stirring. An air supply mechanism is disclosed in which a small gap is formed at the bottom of the treatment tank and a small number of air holes are formed in the opposing bottom wall surface, and compressed air is supplied from the air holes.

  This publication describes that air can be supplied even if the volume of the processed material decreases because air is supplied from the bottom wall surface of the processing tank.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 2004-315259) discloses a treatment tank that contains organic waste and a stirring blade that stirs the waste in this treatment tank, and the organic waste contained in the treatment tank. Discloses an apparatus structure for supplying air while mixing aerobic microorganisms with stirring. The stirring blades are provided with a plurality of stirring blades on a pair of left and right rotating shafts in the tank, and the left and right stirring blades are rotated in opposite directions to decompose waste and microorganisms while stirring. . In order to promote the decomposition action of the aerobic microorganisms, the rotation shaft is provided with a vent hole (jet port), and compressed air is supplied from the outside through the hollow rotation shaft. In particular, the publication proposes disposing the inside of a bracket for mounting a stirring blade in order to prevent clogging of a through hole (a jet port) for supplying compressed air.

In Patent Document 3, an aerobic microorganism is mixed in waste transferred from a storage tank containing organic waste to a treatment tank by a conveyor means, and decomposition is promoted while stirring with a stirring rotary blade provided in the treatment tank. Is disclosed. An agitation structure is disclosed in which the agitation rotor blades are formed in a hollow shape and supply air from a large number of through holes provided in the outer wall. In particular, the publication proposes preventing the clogging by disposing the vent hole on the rear side in the rotational direction of the blade.
JP 2001-170605 A (FIG. 1) JP 2004-315259 A (FIG. 1) Japanese Patent Laying-Open No. 2005-144293 (FIG. 1)

  As described above, in an apparatus that decomposes organic waste with aerobic microorganisms, it is necessary to supply air to the microorganisms. Similarly to this, even in an apparatus for treating waste without using aerobic microorganisms, for example, when the treated product contains excessive moisture, it is necessary to supply hot air and dry it.

  Thus, when air is supplied to the organic waste stored in the treatment tank (for decomposition promotion or drying), it is effective to introduce the air into the deposited organic waste. Therefore, conventionally, it has been proposed to provide an air supply hole in the processing bottom as in Patent Document 1 described above. In this case, needless to say, the air supply holes are easily clogged.

  In order to prevent such clogging of the air supply holes, Patent Document 2 proposes to provide air supply holes in the bracket where the stirring blades are attached, but the air is a gap between the bracket and the blade base end. Therefore, it is easily estimated that the waste fine powder enters the gap and causes clogging.

  In addition, when the air supply holes are arranged on the rear side of the rotating blades as in the above-mentioned Patent Document 3, it is good when the waste to be treated is dry, but clogged in the same way when it contains moisture and is in a sludge state. When the apparatus is not used or when the stirring blades are stopped, the remaining deposits enter the air supply holes and cause clogging.

  When supplying air from the air supply holes into the organic waste deposited in this way, various methods have been attempted in the past to prevent the deposits from clogging the air supply holes. However, none of these methods have a structure in which deposits enter into the air supply holes, and no structure for discharging waste that has entered the air supply holes (mouths) to the outside has been proposed.

  Therefore, the present inventor has provided a rotating blade member that discharges the sediment that has entered the air supply port for supplying air to the organic waste, thereby reliably supplying the organic matter without clogging even if it contains water in a sludge state. I came up with the idea of being able to care.

The present invention provides an organic waste treatment apparatus capable of reliably supplying predetermined air without clogging an air supply port when air is supplied to the inside of organic waste accommodated in a treatment tank. Providing is the main challenge.
Furthermore, the present invention provides an organic material that can be efficiently decomposed by mixing sufficient air that promotes the decomposition action when the organic waste contained in the treatment tank is decomposed by an aerobic microorganism. The issue is to provide a waste treatment device.

  In the present invention, the “air supply port” refers to an outlet for discharging air to the outside, such as an opening for discharging air, a through hole, and a gap. In order to achieve the above object, the present invention provides a hollow cylindrical air supply pipe having an air supply port inside an organic waste when the organic waste contained in the treatment tank is decomposed with microorganisms while stirring. And a rotary blade member for transferring or diffusing organic waste in the discharge direction inside or outside the pipe, and a driving means for rotationally driving the blade member. The configuration will be described in detail below.

Comprising a processing tank for accommodating a processed product, a stirring means for stirring the treated product in the treatment tank, and air supply means for supplying air to the treated product of the treatment tank.
The stirring means includes a rotating shaft disposed in the processing tank and connected to a stirring drive motor, and a stirring spiral that is wound around the rotating shaft in a spiral shape and moves a processed material from one end to the other end in the axial direction. Consists of blades .
The air supply means includes an air supply pipe having an air supply port, a supply pump that supplies air to the air supply pipe, and an air supply spiral that is disposed in the air supply pipe and discharges a processed material from the air supply port. The air supply pipe is fixed to the side wall of the housing that supports the rotating shaft of the stirring spiral blade, and includes the blade and a supply motor that rotates the air supply spiral blade. The air supply port is arranged so as to supply air to the inside of the processed product swirled by the stirring spiral blade .
The agitation drive motor and the air supply drive motor rotate the air supply spiral blade at a higher speed than the agitation spiral blade so that the conveying force exerted on the processing object around the air supply port is increased. .

  The air supply pipe is configured by a hollow sleeve member having an air supply port at a tip, and the rotary blade member is configured by a spiral spiral blade disposed inside the hollow sleeve member. The spiral blade is rotationally driven so as to discharge the organic waste entering the hollow sleeve to the outside of the air supply port.

  The rotary blade member is set to have a rotational torque and / or a rotational speed so as to apply a transport force larger than the transport force exerted by the stirring means to the organic waste located around the air supply port.

  The air supply pipe is constituted by a hollow sleeve member having an air supply port on the outer periphery, and the rotary blade member is constituted by a spiral blade wound around the outer periphery of the hollow sleeve member. The spiral blade is rotationally driven so as to diffuse the organic waste entering the air supply port in the outer circumferential direction.

  The treatment tank is provided with a moisture amount detecting means for detecting the moisture content of the organic waste accumulated therein, and the supply pump is connected to the supply port according to the moisture amount detected by the moisture amount detecting means. It is configured to increase or decrease the amount of air to be supplied.

  The treatment tank includes an outside air introduction pipe for introducing outside air, and heating means for heating the air from the outside air introduction pipe, and the air supply pipe is a circulation pipe for feeding heated air in the treatment tank. Composed.

  The present invention provides a hollow cylindrical air supply pipe having an air supply port inside the organic waste when the organic waste stored in the treatment tank is decomposed by microorganisms while stirring, and this pipe or Since the rotating blade member for transferring or diffusing the organic waste that has entered the air supply port to the outside in the discharge direction is provided and rotated, the following effects can be obtained.

  Even if organic waste enters the inside due to its own weight or agitation, the waste is transferred in the discharge direction by the rotary blade member to the air supply port arranged inside the organic waste in the treatment tank. There is no clogging in the mouth. At the same time, even if the residual waste enters the air supply port and solidifies when the apparatus is stopped, it is removed outside the air supply port by rotating the rotary blade member at the time of restart. Therefore, even if the apparatus is operated for a long period of time, an appropriate amount of air can be continuously supplied. Therefore, when the organic waste in the treatment tank is dried, it can be dried in a short time, and when the aerobic microorganism is mixed into the organic waste and decomposed, the decomposition action can be promoted.

  Further, according to the present invention, the rotating speed of the blade member can be rotated at a high speed with respect to the stirring speed by connecting the stirring means for stirring the organic waste in the treatment tank and the rotating blade member to different driving means. . Therefore, it is possible to feed the air from the air supply port to a long distance by accelerating and removing the organic waste convection around the air supply port.

  As described above, the present invention provides a rotating blade member inside or outside the air supply pipe having the air supply port, and rotates the blade member so that the waste that has entered the air supply port is discharged to the outside. Therefore, the structure is simple, and there are few effects, and there are remarkable effects such as being able to be provided at a low cost.

The present invention will be described in detail below based on the preferred embodiments shown in the drawings. FIG. 1 is an explanatory view showing the overall configuration of an organic waste treatment apparatus according to the present invention, and FIG. 2 is an explanatory view showing a central longitudinal section of FIG. 3 is an explanatory view of an air supply mechanism in the apparatus of FIG. 1, (a) is a front view, and (b) is an explanatory view of a blade shape when a ventilation groove (portion) is formed in a supply spiral blade. It is.
(C) (d) is explanatory drawing which shows the shape of the spiral blade for air supply . FIG. 4 is an explanatory view showing the operating state of the waste flowing in the treatment tank and the air supply mechanism.

  An organic waste treatment apparatus A shown in FIG. 1 includes a treatment tank 10 that accommodates organic waste (hereinafter referred to as “processed matter”), an agitation unit 20, and an air supply mechanism 40. Hereinafter, the “processing tank” and “air supply mechanism” will be described in this order.

[Configuration of treatment tank]
The processing tank 10 is covered with an apparatus outer housing (housing) 11 and is formed in a shape that accommodates the processed material M therein. The processing tank 10 is configured to be robust with a volume corresponding to the application. The housing 11 covers the treatment tank 10 with an appropriate metal material, synthetic resin, or the like, and has confidentiality, water resistance, and heat resistance. The housing 11 shown in the figure has a moderate confidentiality by welding a metal plate to a frame frame to form an outer wall. This confidentiality is configured such that the processed material M stored in the internal processing tank 10 does not scatter to the outside, and a strange odor does not reach the outside. Further, the water resistance is configured such that moisture contained in the processed product M does not leak to the outside. Furthermore, the outer wall is comprised with the heat insulation wall so that the housing 11 may hold | maintain the processing tank 10 to appropriate temperature (the decomposition temperature of the processed material mentioned later).

  The treatment tank 10 thus formed is provided with a loading door 12 for loading the processed material M and a drain door 13 for discharging the residue. Accordingly, in the processing tank 10, a residue (for example, a metal piece or the like) that cannot be decomposed after the processed material M is input from the input door 12 or is loaded by a conveyor (not shown) connected to the door and decomposed inside. Is taken out from the drain door 13.

  The processing tank 10 includes a temperature detection sensor TS and a moisture amount detection sensor HS. The temperature detection sensor TS detects the temperature of the processed product M in the processing tank, and the moisture amount detection sensor HS detects the amount of moisture contained in the processed product M. The temperature detection sensor TS is constituted by, for example, a thermosensor (thermocouple). The moisture amount detection sensor HS is configured to detect the water content by detecting the physical amount of water droplets attached to the sensor plate, for example (see Japanese Patent Application Laid-Open No. 2006-281167). As shown in FIGS. 1 and 2, the temperature detection sensor TS and the moisture amount detection sensor HS are attached to the side wall in the treatment tank 10 and are arranged so as to directly detect the temperature and moisture of the processed product M. The temperature detection sensor TS and the moisture amount detection sensor HS are connected so as to transfer a detection signal to a controller which will be described later.

[Configuration of stirring means]
In the processing tank 10, stirring means 20 for stirring the processed material M is provided. This agitation means 20 has (1) the purpose of mixing the processed matter M, microorganisms and their culture (pulp chips, etc.) accommodated in the treatment tank 10, and (2) air to microorganisms (mostly aerobic). It is configured to achieve the purpose of supplying and (3) the purpose of evaporating the water contained in the processed product M. For this reason, the stirring means 20 is composed of a rotating shaft 21 and a stirring blade 22 mounted on the rotating shaft 21, and a stirring motor KM is connected to the rotating shaft 21.

The stirring blade 22 for stirring the contained treated M into the processing bath 10 as is the structure (see for example JP 2001-170605) for winding the spiral blade spirally rotating shaft 21 is known ing.

  The illustrated apparatus is provided with a pair of left and right first rotating shafts 21a and 21b in the treatment tank 10, and first and second spiral blades 22a and 22b are wound around the respective rotating shafts. Reference numeral 22x in the figure denotes a support stem, the base end portion of which is fitted and supported on the rotating shaft 21, and the blade plate is supported in a spoke shape at the front end portion. A bearing 21 v shown in the figure is a bearing that supports the rotating shaft 21 on the side wall of the housing 11.

  Thus, the first and second rotating shafts 21a and 21b arranged in a pair on the left and right in the processing tank 10 are connected to the stirring motor KM via a reduction gear and a coupling (not shown), and the first and second The rotary shafts 21a and 21b are connected to rotate in opposite directions. Accordingly, for example, the processed material M moves from the left to the right in the first spiral blade 22a located on the front side in FIG. 1, and moves from the right to the left in the second spiral blade 22b located on the rear side in FIG. It will be stirred in the process of going around.

[Crushing mechanism of spiral blade]
As described above, the processed material M is stirred with one or a plurality of spiral blades 22 and decomposed with microorganisms mixed therein. At this time, it is preferable to crush the processed material M with a stirring blade (spiral blade; the same applies hereinafter) 22 to promote decomposition by microorganisms. In this case, the processed material M may include a piece of wood that cannot be easily crushed. In view of this, the illustrated apparatus comprises the stirring blade 22 and the inner wall (bottom wall) 10a of the treatment tank 10 as follows. The bottom wall 10a of the processing tank 10 is formed in a semicircular shape (see FIG. 2) with respect to the stirring blade 22 that rotates in a cylindrical locus, and has a shape that follows the movement locus of the blade. Therefore, as shown in the enlarged state in FIG. 5, a plurality of protrusions 22 y are integrally formed on the stirring blade 22 at a predetermined interval. FIG. 5 shows one protrusion 22y, but a plurality of protrusions 22y are formed at predetermined intervals over the entire length of the blade. And the crushing protrusion 10x which mutually fits with this protrusion 22y is integrally formed in the bottom wall 10a of the processing tank 10 (refer FIG. 5). A plurality of the crushing protrusions 10x are also arranged on the bottom wall 10a along the outer periphery of the spiral blade 22.

[Configuration of intake / exhaust mechanism]
The above-described processing tank 10 is provided with the following “suction / exhaust mechanism”. An outside air introduction pipe 31 and an exhaust pipe 32 for introducing outside air are connected to the processing tank 10. The outside air introduction pipe 31 has a built-in heater (not shown), and the outside air is heated to a predetermined temperature and supplied into the processing tank 10. The exhaust pipe 32 discharges gas (for example, carbon gas ) generated in the processing tank to the outside.

[Configuration of air supply mechanism]
The present invention is characterized by decomposing with microorganisms while circulating the processed material M in the processing tank 10 described above. An air supply mechanism for supplying air into the treatment tank will be described.

  In the organic waste treatment apparatus A described above, the temperature in the tank is controlled by a heater built in the outside air introduction pipe 31 by a detection signal from the temperature detection sensor TS. In addition, the aerobic microorganism W can be activated by increasing the temperature in the tank with a detection signal from the moisture amount detection sensor HS and drying. However, it is difficult to supply the air supplied to the aerobic microorganisms W even to the microorganisms in the processed material deposited inside even if the air is introduced from the outside air introduction pipe 31 described above. Therefore, the present invention employs a method of supplying air into the processed material. In this case, there arises a problem that the processing object is clogged in the air supply port. The present invention solves this problem by the following configuration.

[First Embodiment of Air Supply Mechanism]
The air supply mechanism 40 shown in FIG. 3 enters an air supply pipe 41, a supply pump 45 (see FIG. 1) for supplying air (heated air) or outside air in the processing tank 10 to this pipe, and an air supply port 42. And a rotary blade member 46 for transferring the processed material in the discharge direction. Therefore, the air supply pipe 41 is constituted by a cylindrical hollow sleeve 41a, and an air supply port 42 is formed at the tip (the left end in FIG. 3A). An air inlet 43 is provided at the base end (the right end in FIG. 3A).

  Inside the hollow sleeve 41a, a rotating blade member 46 that swivels to form a small gap with the inner diameter of the sleeve is incorporated. The rotary blade member 46 includes a rotary shaft 46x and a spiral blade 46y spirally wound around the rotary shaft 46x, and is supported by a bracket 47 to which a sleeve member 41a is attached. That is, the rotating shaft 46x is cantilevered and supported by the bracket 47 via a bearing, and the driving motor M2 is coupled to the rotating shaft 46x by a coupling.

  Accordingly, the hollow sleeve 41a, the rotation shaft 46x, and the drive motor M2 are attached to the bracket 47 arranged outside the processing tank 10, and the spiral blade 46y is wound around the rotation shaft 46x. 48 is a bearing collar which shields the hollow sleeve 41a and the side wall of the processing tank 10. The air supply port (nozzle port; the same applies hereinafter) 42 of the hollow sleeve 41a is disposed inside the processed material M deposited in the processing tank. That is, the air supply port 42 is disposed so as to face a position lower than the allowable minimum accumulation height (HL shown in FIG. 1) of the organic waste treatment apparatus A. In addition, as shown in FIG. 2, the air supply port 42 is disposed at an intermediate point between the first rotary shaft 21a and the second rotary shaft 21b. This is because air is supplied from the air supply port 42 to the center of the workpiece M swirled by the first spiral blade 22a and the second spiral blade 22b.

  The spiral blade 46y is formed so as to discharge the processed material that has entered the hollow sleeve in the direction of arrow Y when the rotation shaft 46x rotates in the direction of arrow X in FIG. At the same time, the spiral blade 46y is formed with a V groove between the inner wall of the sleeve in the direction of the rotation axis so as to form an air passage 46z. Accordingly, the spiral blade 46y inserted into the hollow sleeve 41a discharges the processed material in the sleeve to the outside by the rotation of the rotation shaft 46x, and at the same time, air from the air introduction port 43 is supplied to the air supply port (nozzle port) 42. The air is supplied through the air passage 46z.

A circulation pipe 48 for circulating the air in the processing tank 10 is connected to the air introduction port 43 of the hollow sleeve 41a through a supply pump 45 , or the outside air is heated to a predetermined temperature by a heater and introduced.

[Description of the action of the air supply mechanism]
The operation of the air supply mechanism 40 shown in FIG. 3 will be described. First, when the processing object M is put into the processing tank 10 when the apparatus is activated, a controller (not shown) controls the tank temperature and humidity set in advance. At this time, the rotary blade member 46 in the air supply pipe 41 is rotated in the X direction as viewed in FIG. Then, the residual processed material that has entered the hollow sleeve 41 a is discharged from an air supply port (nozzle port) 42.

  Therefore, as shown in FIG. 4, the processed material M in the processing tank 10 is moved in the Z direction by the stirring blades 22 of the stirring means 20. The processed material M moves in the direction of the arrow Z solid line while being swung up and down by the spiral movement of the first spiral blade 22a, and moves in the direction of the arrow Z 'broken line by the movement of the second spiral blade 22b and travels in the tank. To do. At this time, the processed material M tends to enter the air supply pipe 41 from the air supply port 42. However, since the rotary blade member 46 (the above-described spiral blade 46y) in the air supply pipe rotates in the X direction as shown in FIG. 4, the processed material M is prevented from entering the air supply port 42 into the inside.

  It should be noted that the conveying force F2 exerted by the rotary blade member 46 is set to be larger (F2> F1) than the conveying force F1 acting on the workpiece M around the air supply port 42 from the agitating blade 22 described above. Has been. This conveyance force F1 (F2) is a momentum exerted on the workpiece M, and the conveyance force F2 can be increased by rotating the rotary blade member 46 at a higher speed than the stirring blade 22.

  Therefore, the force that enters the discharge port and the discharge force are applied to the processed product M positioned around the supply port 42, and only the force in the vertical stirring direction is applied to the processed product M in a balance between the two. It accelerates without staying in the vicinity of the air inlet 42 and moves up and down in the stirring direction. At this time, air is supplied to the processed material M from the air supply port 42. The processed material M containing air floats upward by the first and second spiral blades 22a and 22b, and then diffuses and falls downward. At this time, the air from the air supply port 42 is diffused throughout the workpiece M.

An air supply mechanism different from the above air supply mechanism will be described with reference to FIG. In the above-described apparatus, the rotary blade member 46 has the spiral blade 46y built in the air supply pipe. The rotary blade member 46 may be rotatably disposed on the outer periphery of the air supply pipe. The form is shown in FIG. 6, (a) is the structure of the air supply part which introduces air in a processing tank, (b) is explanatory drawing of the drive mechanism. In FIG. 6, the same components as those in FIG.

  In the mechanism of FIG. 6, a large number of air supply ports (holes) 51a, 51b, 51c are arranged on the outer periphery of the hollow sleeve 41a. A spiral blade 52 similar to that described above is fitted and supported on the outer periphery of the hollow sleeve 41a so as to be pivotable. A driving motor M3 is connected to the spiral blade 52 via a reduction gear (not shown). As shown in FIG. 6B, the spiral blade 52 formed in a spiral shape has an inner diameter d1 slightly larger than the outer diameter of the hollow sleeve 41a. The hollow sleeve 41 a is fixed to a bracket 54 fixed to the outer wall of the housing 11. A circulation pipe 55 is connected to the hollow sleeve 41a at the base end portion so that air (heated air) in the processing tank is circulated by a supply pump (not shown). A large number of air supply ports (holes) 51a, 51b, 51c are formed in the outer periphery of the distal end portion of the hollow sleeve 41a.

  A spiral blade 52 is loosely fitted to the outer periphery of the air supply pipe 41 configured as described above, and a bearing sleeve 52a is integrally provided at the base end portion of the spiral blade 52. The outer wall of the housing 11 is rotatably supported through a bearing. A drive motor M3 is mounted on the bracket 54, and the motor rotation shaft is connected to the illustrated transmission gear 56 via a reduction gear. The transmission gear 56 is meshed with a passive gear 57 fixed to the bearing sleeve 52a. With such a configuration, the spiral blade 52 is swung by the drive motor M3 on the outer periphery of the hollow sleeve 41a fixed stationary.

  An encoder (not shown) is attached to the rotation shaft of the drive motor M3 to control the rotational position of the spiral blade 52. This is because the air supply ports 51 a to 51 b of the hollow sleeve 41 a are shielded by the spiral blade 52 when the apparatus is not used. That is, the spiral blade 52 inclined at a predetermined angle (pitch) has a rotational angle position that covers the air supply ports 51a to 51c, and the inner wall of the blade covers the air supply ports 51a to 51c when the device is not used. Similarly, when air is not supplied, control is performed so as to cover the air supply port.

  The operation of the air supply mechanism shown in FIG. 6 will be described. First, when the apparatus is activated, the air inlets 51 a to 51 c of the air introduction pipe 41 are covered with the inner wall of a spiral blade (rotary blade member; hereinafter the same) 52. Therefore, even if a residue is present in the treatment tank, the air supply port is not clogged. Further, even if the processing object M is clogged in the air supply ports 51a to 51c, it is removed as follows.

  Therefore, when the processed material M is put into the processing tank 10, a controller (not shown) controls the temperature and humidity in the tank set in advance. Before and after this, the controller rotates the rotary blade member 52 provided on the outer periphery of the air supply pipe 41 in the X direction as viewed in FIG. Then, when the spiral blade 52 wound around the outer periphery of the hollow sleeve 41a rotates counterclockwise, the processed material staying around the air supply ports 51a, 51b, 51c is moved in the arrow direction. The processed material clogged in the supply ports 51a to 51c is also removed by the movement of the processed material. At the same time, the controller starts a supply pump (not shown) to supply high-pressure air into the hollow sleeve. Then, the processed material clogged in the air supply ports 51a to 51c is discharged to the outside.

  Therefore, the processed material M in the processing tank 10 travels around the tank by the stirring blades 22 of the stirring means 20 as described above with reference to FIG. At this time, the processed material M tends to enter the air supply pipe 41 from the air supply ports 51a to 51c. However, since the rotary blade member (spiral blade) 52 rotates in the X direction as shown by the arrow (a) in FIG. 6 on the outer periphery of the air supply pipe 41, the processed material on the outer periphery is sent out to the inside of the processing tank. That is, it is sent out in a direction orthogonal to the direction entering the air supply port. Therefore, when the spiral blade 52 is rotated at a predetermined speed, the processed material M is prevented from entering the inside by the wiper movement of the blade, so as to enter the air supply port.

  Therefore, the processed material M located around the air supply ports 51a to 51c is subjected to the force in the vertical stirring direction by the stirring blade 22 described above, and therefore accelerates and moves up and down in the stirring direction without staying near the air supply port. . At this time, air is supplied to the processed material M from the air supply ports 51a to 51c. The processed material M containing air floats upward by the first and second spiral blades 22a and 22b, and then diffuses and falls downward. At this time, the air from the air supply ports 51a to 51c is diffused throughout the workpiece M.

[Method of mixing gas into the sediment]
A description will be given air supply method to the next. A method of supplying air for promoting drying or decomposing action into a treatment tank for decomposing organic waste with microorganisms, wherein organic waste and microorganism W for decomposing the organic waste are mixed in the treatment tank (10). The mixture is stirred with the stirring means (20).

  Simultaneously with this stirring, the air in the processing tank or the outside air is supplied to the organic waste accumulated in the processing tank from the air supply port (42) of the air supply pipe (41). As described above, the air supply port (42) includes the rotary blade member (22) that prevents the processed material from entering the air supply port inside or outside the pipe. Therefore, air is fed while discharging the organic waste entering the air supply port (42) by the rotary blade member (22).

Explanatory drawing which shows the whole structure of the organic waste processing apparatus concerning this invention. 1 is an explanatory view of a side state of the apparatus, (a) is a left side view of FIG. 1, (b) is a right side view. It is explanatory drawing of the air supply mechanism in the apparatus of FIG. 1, (a) is an upper surface state, (b) shows a left side surface state, (c) (d) is explanatory drawing which shows the shape of a spiral blade | wing. It is explanatory drawing of the operation state of the air supply mechanism in the apparatus of FIG. It is structure explanatory drawing of the stirring blade in the apparatus of FIG. Embodiments different from the air supply mechanism of FIG. 3 are shown, (a) is an explanatory view showing the structure of the air supply unit, and (b) is an explanatory view showing the structure of the blade driving unit.

Explanation of symbols

A Organic waste treatment apparatus M Processed substance W Aerobic microorganism 10 Treatment tank 10a Bottom wall 10x Crushing protrusion 11 Apparatus outer casing (housing)
12 Input door 12a Handle 13 Drain door 14 Drain pipe 20 Stirring means 21 Rotating shaft 21a First rotating shaft 21b Second rotating shaft 21v Bearing 22 Spiral blade (stirring blade)
22a First spiral blade 22b Second spiral blade 22x Support stem 22y Projection 31 Outside air introduction pipe 32 Exhaust pipe 33 Filtering means 40 Air supply mechanism 41 Air supply pipe 41a Hollow sleeve 42 Air supply port (nozzle port)
43 Air introduction port 45 Supply pump 46 Rotating blade member 46x Rotating shaft 46y Spiral blade 46z Air passage 47 Bracket 48 Bearing collars 51a to 51c Air supply port (second embodiment)
52 Spiral blade (second embodiment)
TS Temperature detection sensor HS Moisture content detection sensor KM Stirring motor M2 Drive motor

Claims (4)

A processing tank for storing the processed material ;
Stirring means for stirring the processed material in the processing tank;
Air supply means for supplying air to the processed material in the processing tank;
With
The stirring means is
A rotating shaft disposed in the treatment tank and connected to a stirring drive motor ;
A spiral blade for stirring that is spirally wound around the rotating shaft and moves the processed material from one end to the other end in the axial direction;
Consists of
The air supply means includes
An air supply pipe having an air inlet;
A supply pump for supplying air to the air supply pipe;
An air supply spiral blade that is disposed in the air supply pipe and discharges a processed material from the air supply port ;
An air supply drive motor for rotating the air supply spiral blade;
In is configured,
The air supply pipe is fixed to the side wall of the housing that supports the rotating shaft of the stirring spiral blade,
The air supply port is arranged so as to supply air to the inside of the processing object swirled by the stirring spiral blade,
The stirring drive motor and the air supply drive motor are:
An organic waste treatment apparatus , wherein the air supply spiral blade is rotated at a higher speed than the stirring spiral blade so that a conveying force exerted on a processed material around the air supply port is increased . The air supply pipe is composed of a hollow sleeve member having an air supply port at the tip,
The rotary blade member is composed of a spiral blade having a spiral shape disposed inside the hollow sleeve member,
2. The organic waste treatment apparatus according to claim 1, wherein the spiral blade is rotationally driven so as to discharge the treated material entering the hollow sleeve to the outside of the air supply port. The treatment tank is provided with a moisture content detection means for detecting the moisture content of the processed material deposited inside,
2. The organic material according to claim 1, wherein the supply pump is configured to increase or decrease the amount of air supplied from the air supply port in accordance with the amount of water detected by the water content detection unit. Waste treatment equipment. In the treatment tank, an outside air introduction pipe for introducing outside air,
Heating means for heating the air from the outside air introduction pipe,
The organic waste treatment apparatus according to claim 1, wherein the air supply pipe is a circulation pipe that feeds heated air in the treatment tank.

Images