JP3995662B2 - Organic waste treatment equipment - Google Patents

Description

The present invention provides an organic waste decomposition apparatus for decomposing organic waste such as garbage (mainly solid organic waste) discharged from restaurants, hotels, food processing factories, etc. by the decomposition action of microorganisms . The present invention relates to an organic waste treatment apparatus that is disposed in an waste treatment line to enable transportation and decomposition of organic waste.

Conventional methods for treating organic waste (mainly solid organic waste) emitted from restaurants, hotels, food processing factories, etc. have been incinerated or disposed of in landfills. There is a problem that toxic gas is generated in the human body, etc., and there is a problem that the remaining years that can secure a landfill site is drastically reduced in landfill disposal, so organic emissions different from before There is a need for a processing method.
As one of the processing equipment for organic effluent that meets this purpose, organic effluent and microorganisms are crushed and mixed by agitation means and decomposed by microorganisms under aerobic condition while heating them. Organic waste decomposition devices that can be recovered as organic fertilizers are well known.
JP 2000-550 A

However, in order to increase the decomposition efficiency of organic waste, such an organic waste decomposition apparatus generally has a plurality of heaters arranged under the floor of the decomposition treatment chamber and directly heats the floor or the air under the floor with the heater. It has been broken. for that reason,
(1) A temperature difference is apt to occur between the vicinity of the heater and a position away from the heater, and it is difficult to heat the floor of the decomposition chamber at a uniform temperature even if the heater layout is devised.
(2) Since the optimum rotation speed of the stirring means is as slow as about 6 to 10 min-1, for example, the workpiece in the decomposition chamber is likely to be heated locally near the heater (heating unevenness occurs). When heated to a high temperature, a part of the microorganisms that have the effect of decomposing the organic effluent is killed, and the decomposition rate of the organic effluent does not increase.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an organic waste decomposition apparatus capable of heating a floor of a decomposition treatment chamber at a uniform temperature. It is to provide an organic waste treatment apparatus which is disposed in a line and can transport and decompose organic waste.

The present invention has been made in order to solve the above-mentioned problems, and the invention according to claim 1 is an organic waste treatment apparatus in which an organic waste decomposition apparatus is arranged, and is organic by waste water. Downstream of the discharge end of the organic waste inflow pipe for introducing the organic waste into the organic waste treatment apparatus main body, and the overflow plate having a height lower than that of the flow rate control weir And two rotary screens for separating the organic discharge from the waste water, and an organic discharge decomposition device is arranged downstream of the two rotary screens. A decomposition treatment chamber for decomposing organic waste by microorganisms and a floor heating means for uniformly heating the entire floor of the decomposition treatment chamber, wherein the decomposition treatment chamber contains the organic discharge and microorganisms for decomposing it. It has a stirring means for mixing, and the stirring means has two A rotating blade and a tip of a stirring rod that protrudes outward in the radial direction of the shaft from the rotating shaft are provided with a fringing blade of an oblique pyramid having a sharp slope, and the lifting blade on the two rotating shafts is a stirring region. Are attached so as to partially overlap, the floor of the decomposition chamber is formed in an arc shape along the rotation trajectory of the raking blade, and the entire surface is covered with a heat insulating material. It is an organic waste treatment device .

According to the first aspect of the present invention, two rotary screens for separating the organic waste from the wastewater are disposed downstream of the discharge end of the organic waste inflow pipe for introducing the organic waste by the wastewater. By arranging the organic waste decomposition device downstream of these two rotary screens, the conventional crusher and dehydrator required downstream of the rotary screen are no longer required, simplifying and saving maintenance. Cost can be reduced. Further, by providing an overflow plate having a height lower than that of the flow control weir, a constant amount of the mixed liquid is always processed by the rotating screen.

Moreover, it can be set as the stirring means suitable when processing a small amount of to-be-processed objects by setting it as the said organic waste decomposition device.

Further, in the invention according to claim 1 , since the decomposition treatment chamber is provided with a stirring means for mixing the organic effluent and the microorganism for decomposing the organic effluent, the microorganism exhibits the decomposition action of the organic effluent. Therefore, the organic waste can be sufficiently supplied and the organic waste that feeds the microorganisms can be supplied sufficiently.

According to a second aspect of the present invention, the floor heating means directly heats the entire floor of the decomposition treatment chamber with a liquid heating medium, and supplies and discharges the liquid into and out of the floor heating chamber. 2. The organic waste treatment apparatus according to claim 1 , wherein the organic waste treatment apparatus includes a means and a heater that heats the liquid in a floor heating chamber and uses the liquid as the heating medium.

According to the invention described in claim 2 , the floor heating means includes a floor heating chamber that directly heats the entire floor with a liquid heating medium, a supply / discharge unit that supplies and discharges the floor heating chamber, and the liquid. By comprising a heater that is heated in the floor heating chamber and used as the heating medium, the entire floor of the decomposition processing chamber can be heated with a liquid heating medium, so that it is heated at a constant temperature anywhere on the floor. be able to.

  (1) According to the first aspect of the present invention, a crusher and a dehydrator that have been conventionally required downstream of the rotary screen become unnecessary, and maintenance can be simplified and cost can be reduced. In addition, since the object to be processed in the decomposition treatment chamber is not locally heated and the microorganisms are not killed, the decomposition rate of the organic waste is improved. In addition, it is possible to sufficiently supply the organic effluent serving as a feed to the microorganism and the optimal temperature for the microorganism to exert the decomposition action of the organic effluent.
  (2) According to the invention described in claim 2, since the entire floor of the decomposition treatment chamber can be heated with the liquid heating medium, it can be heated at a constant temperature anywhere on the floor.

  The organic waste treatment apparatus according to the present invention will be described.
  First, the organic waste decomposition apparatus according to the first embodiment disposed in the organic waste treatment apparatus according to the present invention will be described with reference to the drawings.
    As shown in FIGS. 1 and 3, the organic waste decomposition apparatus 1 is composed of an upper decomposition treatment chamber 11 and a lower floor heating chamber 12. The entire organic waste decomposition device is box-shaped and installed on a caster-mounted base.

  The decomposition processing chamber 11 and the floor heating chamber 12 are fastened with bolts and nuts between flanges 18 and 18 provided at the lower portion of the decomposition processing chamber 11 and the upper portion of the floor heating chamber 12, respectively. Between the flanges 18 and 18, an outer peripheral end portion of the floor 13 of the decomposition processing chamber 11 is sandwiched. As shown in FIG. 3, the floor 13 of the decomposition processing chamber 11 is formed in an arc shape so as to follow the rotation trajectories of the stirring blades 22, 22-of the stirring means 20, 21.
  By forming the floor 13 in an arc shape in this way, the heat transfer area for heating the object to be processed can be made larger than when the floor is flattened.

As described above, the floor heating chamber 12 is configured to be detachable from the floor 13 with bolts and nuts, so that the floor heating chamber 12 can be easily attached and detached, and organic waste decomposition is achieved. Inspection and maintenance of the entire device becomes easy.
  The ceiling 19 of the decomposition processing chamber 11 is provided with an openable / closable organic discharge inlet and an internal inspection port (not shown).

A set of stirring means 20 and 21 as shown in FIGS. 1 to 3 are provided inside the decomposition processing chamber 11. The agitating means 20 and 21 include two rotating shafts 23 and 24 disposed horizontally in the decomposition processing chamber, and a plurality of stirring blades 22 and 22-- protruding outward in the axial radial direction from the rotating shafts 23 and 24. Consists of As shown in FIG. 3, the stirring blades 22, 22 have a stirring rod 25 having a constant width over the entire length, and an oblique pyramid base (having a trapezoidal cross section) having an acute slope provided at the tip of the stirring rod 25. ) Of the raking blades 26). The raking blade 26 is provided such that the lower bottom surface of the trapezoid (which will be referred to as a convenience for the reason that the horizontal section of the raking blade 26 is trapezoidal) is the floor side of the decomposition processing chamber 11.
  Further, the tip of the scraping blade 26 is provided so as to face the same direction as the rotation direction of the stirring means 20 and 21.

As shown in FIGS. 1 and 2, the stirring blades 22, 22... Are centered on the stirring rods 25, 25... And the lower bottom surfaces of the lifting blades 26, 26-- Therefore, a curve connecting the intersections of the rotation axis 23 and 24 is attached so as to draw a spiral surrounding the rotation axes 23 and 24. Further, the mounting positions of the stirring blades 22 are shifted from each other at equal angular intervals in the rotation direction of the rotary shafts 23 and 24 so that the stirring regions of the stirring blades 22, 22. It is attached (see FIG. 3).

By attaching the stirring blades 22, 22... In this way, when crushing and mixing the object to be processed, a small amount of power is applied in the rotational direction. The agitating means 20 and 21 are suitable for the case where the thickness is small.

By providing the agitation means 20 and 21 for crushing and mixing such organic effluent and the microorganisms that decompose the organic effluent, the organic effluent serving as a food for the microorganism can be sufficiently supplied to the microorganism. The decomposition processing speed of the emission is improved.
  The drive mechanism for driving the agitating means 20 and 21 includes a driven gear attached to the ends of the rotary shafts 23 and 24 and meshing with each other and a driven gear with one of the driven gears via the drive gear. And a motor 4. The rotating directions of the stirring means 20 and 21 can be rotated either forward or reverse.

Further, as shown in FIGS. 3 and 4, the floor heating means of the organic waste decomposition apparatus 1 is a floor heating chamber 12 for directly heating the entire floor of the decomposition treatment chamber 11 with a liquid heating medium, for example, hot water. A water supply port 30 and a water discharge port 31 that are water supply / discharge means for supplying and discharging water as liquid in the floor heating chamber 12, and a heater 32 that heats the water in the floor heating chamber 12 to make hot water Consists of

In this way, the floor heating means includes a floor heating chamber 12 that directly heats the entire floor with hot water, a water supply port 30 and a drain port 31 that supply and discharge water to the floor heating chamber 12, and floor heating the water. By comprising the heater 32 that is heated indoors to produce hot water, the entire floor of the decomposition treatment chamber 11 is heated with hot water having a large specific heat, compared to the conventional case where the floor and the air under the floor are heated by the heater. Therefore, it can be heated at a constant temperature anywhere on the floor 13.

Further, by providing a floor heating means for uniformly heating the entire floor of the decomposition treatment chamber 11 for decomposing the organic emission by microorganisms, the object to be treated in the decomposition treatment chamber is locally heated to decompose the organic emission. Since the microorganisms effective to do so are not killed, the decomposition rate of the organic effluent is improved.
  In addition, as the heating temperature for decomposing the organic effluent, it is heated at a temperature of about 30 to 50 ° C. (preferably 35 to 40 ° C.) in the present invention, so that the heating medium has a small specific heat (easy to cool). ) It is desirable to use a liquid because a liquid having a larger specific heat (harder to cool) than a gas tends to maintain a constant temperature. By setting the heating temperature to 50 ° C. or less, it becomes possible to suppress odors, which makes it very easy to take measures against generated odors.

Moreover, in this embodiment, since the apparatus surface area of the organic waste decomposition | disassembly apparatus 1 is large with respect to the calorie | heat amount generate | occur | produced when decomposing | disassembling a to-be-processed object in the decomposition | disassembly process chamber 11, the ratio of the amount of heat dissipated outside becomes large. Therefore, as shown in FIG. 3, the entire surface of the apparatus is strictly covered with the heat insulating material 35 to reduce the amount of heat dissipated. In particular, at the bottom of the floor heating chamber 12, the heat insulation material 39 having a large thickness is filled into the chamber 36 to ensure heat insulation.

Hereinafter, with reference to FIGS. 1-4, the effect | action of the organic waste decomposition | disassembly apparatus of 1st Embodiment is demonstrated.
  First, water is supplied from the water supply port 30 to the floor heating room. The amount of water as to whether a predetermined amount has been supplied is confirmed with a liquid level gauge 37. When a predetermined amount of water can be supplied, the heater 32 is turned on. The power supply amount of the heater 32 is controlled so that the water temperature in the floor heating room is always 30 to 50 ° C. (preferably 35 to 40 ° C.).
  Here, as a method of controlling the temperature of the hot water, for example, (a) the temperature of the object to be processed in the decomposition chamber, (b) the oxygen concentration, (c) the pH value of the liquid condensed with the moisture in the exhaust, (d) relative You may make it grasp | ascertain the decomposition | disassembly condition of a to-be-processed object by measuring humidity etc. and control the electric power supply amount to the flange heater 32 based on a decomposition | disassembly condition.

Next, the drive of the stirring means 20 and 21 is started. Thereafter, the exhaust blower 3 is activated to introduce fresh air into the decomposition chamber. This completes the preparation. In the decomposition chamber 11, for example, an organic discharge 10 L, an organic discharge decomposing enzyme 10 L as a microorganism, and a rice husk 80 L as a moisture adjusting material are introduced from a not-shown inlet of the ceiling 19 of the decomposition chamber 11 into the decomposition chamber. throw into.
  Note that the moisture adjusting material may or may not be added because it may or may not be added as necessary. Although there is no particular limitation on the moisture value of the object to be treated at the time of introducing the organic waste, the moisture value in the decomposition step is in the range of 60% to 65% by adjusting the processing function power and the amount of the object to be treated. It is desirable to adjust so that.

The object to be processed put into the decomposition chamber 11 is subjected to a microorganism decomposing action while being crushed and mixed between the stirring blades 22, 22. At this time, since the object to be treated is scraped and dropped along the slopes of the lifting blades 26, 26,... Provided at the tips of the stirring rods 25, 25-- Contact with air is promoted. Further, since the object to be processed does not stay in one place on the floor 13, the entire object to be processed can be heated uniformly.

In this way, the optimum temperature, air, and water necessary for the microorganisms that decompose the organic discharge are sufficiently secured, so that the decomposition rate of the organic discharge is improved. Here, by evaporating excess water in the object to be processed by heat generated by fermentation decomposition, the moisture value in the object to be processed can be adjusted from 60% to 65%. Since it works to warm, the effect of reducing the heating energy of the liquid in the floor heating room can be obtained. Furthermore, by evaporating the water in the object to be processed due to decomposition heat generation, it is possible to stably maintain the temperature in the processing chamber in a temperature range in which microorganisms can be easily grown and propagated.
  During the decomposition process, the temperature of the object to be processed is raised to a maximum of nearly 80 ° C. In this way, it becomes possible to kill pathogenic microorganisms, fly eggs, and the like other than microorganisms effective for decomposing organic effluents due to the high temperature. As a result, a high quality final processed product is obtained.

The gas generated when the object to be processed is decomposed in the decomposition treatment chamber 11 is guided from the decomposition treatment chamber 11 to the exhaust gas treatment device, for example, a biological deodorization device by the exhaust blower 3, and the gas purified by the biological deodorization device is the atmosphere. Is released. On the other hand, the final treated product in the decomposition treatment chamber is once stored and stored in a hopper or the like, stabilized, then packed into a bag and recycled as a soil conditioner or organic fertilizer.
  When there are no inorganic components in the organic discharge, most solid organic matter is converted into carbon dioxide, water, ammonia, etc., and no residue is generated in the decomposition chamber.

According to the organic waste decomposition apparatus of the first embodiment having such a configuration and action,
  (1) Since the floor of the decomposition treatment chamber is heated using hot water, the entire floor can be heated uniformly. Therefore, since the processing object in the decomposition treatment chamber is locally heated and microorganisms effective for decomposing the organic discharge are not killed, the decomposition efficiency of the organic discharge is improved.
  (2) Since the floor heating room is detachable from the floor of the decomposition chamber with bolts and nuts, the floor heating room can be easily installed and removed, and the entire organic waste decomposition system Inspection and maintenance become easy.

  Next, the organic waste decomposition apparatus of 2nd Embodiment is demonstrated, referring drawings.
  As shown in FIGS. 5 to 8, the organic waste decomposition apparatus 10 of the second embodiment is different in configuration from the organic waste decomposition apparatus of the first embodiment.
  (1) The space in the upper part of the decomposition chamber is made as small as possible so that the gas generated in the decomposition chamber 41 can be easily exhausted to the outside quickly.
  (2) Further, when the volume of the floor heating chamber 42 is made as small as possible and the water in the floor heating chamber is heated by the heater 43, and the pressure in the floor heating chamber rises more than necessary, the relief valve 44 It is the point which comprised so that the excess pressure in a floor-heating room could be escaped outside via system.
  (3) And the attachment positions of the stirring blades 49, 49... Attached to the stirring shafts 47, 48 of the stirring means 45, 46 are greatly different.

  Hereinafter, the configuration and operation of the stirring means 45 and 46, which are particularly different from the organic waste decomposition apparatus of the first embodiment, will be described with reference to the drawings.
  In addition, description is abbreviate | omitted about the same structure and effect | action as the organic waste decomposition | disassembly apparatus of 1st Embodiment.

  As shown in FIG. 6, the stirring blades 49, 49... Of the organic waste decomposition apparatus 10 of the second embodiment are equally spaced in the axial direction of the rotating shaft and the distance between the stirring blades is shifted by a half pitch. At the opposite side, stirring blades 49, 49,... Are attached at equal intervals in the axial direction. Then, when the rotation shafts 47 and 48 are rotated, the respective attachment positions are attached around the rotation shafts 47 and 48 at an equal angular interval by 90 degrees so that the stirring regions partially overlap. Yes. Since the stirring blades 49, 49,... Are attached in this manner, when stirring and mixing the workpiece, a large amount of power can be applied in the rotational direction. The agitation means 45 and 46 are suitable for the case where the thickness is large.

  According to the organic waste decomposition apparatus of the second embodiment configured as described above,
  (1) Even if a large amount of gas is generated in the decomposition treatment chamber, it is immediately exhausted from the decomposition treatment chamber, so that fresh air is immediately supplied and the decomposition rate of the organic emission is improved.
  (2) Since the floor heating room can be heated by pressurized hot water, the floor heating capacity can be increased and the floor heating room can be reduced.
  Therefore, it is not necessary to enlarge the organic waste decomposition device more than necessary even if the amount of organic waste processed increases.

  Next, an organic waste treatment apparatus according to an embodiment in which the organic waste decomposition apparatus according to the first embodiment is incorporated in an organic waste treatment line will be described with reference to FIGS.

As shown in FIGS. 9 and 12, the organic waste treatment apparatus 50 according to the present invention is a wastewater containing organic waste (mainly solid organic waste) discharged from restaurants, hotels, food processing factories, and the like. And two inflow pipes 51a, 51b for introducing a mixed liquid of domestic wastewater such as toilet wastewater into the organic waste treatment apparatus main body 50a, and a flow rate of the mixed liquid provided in the subsequent stage of the inflow pipes 51a, 51b Is separated by two rotary screens 53a and 53b for removing impurities from the mixed liquid adjusted by the flow rate control weir 52, and the rotary screens 53a and 53b. The main part is composed of an organic waste decomposition apparatus 54 for treating the contaminated waste (sediment) by the decomposition action of microorganisms and an organic waste treatment apparatus main body 50a for storing the whole.

  The inflow pipes 51a and 51b are provided at one end of the organic upper part of the organic waste treatment apparatus main body 50a so as to penetrate two walls in parallel, and the piping in the main body room is bent downward by 90 degrees with respect to the horizontal direction. It has been.
  At the discharge ends of the inflow pipes 51a and 51b, a box (baffle plate) 51c that is open at the top and bottom is disposed so as to surround the discharge ends of the inflow pipes 51a and 51b.

As shown in FIG. 11, the flow control weir 52 guides the weir plates 52a and 52b so that the two weir plates 52a and 52b can be inserted and removed in the vertical direction at the upper part of the rectangular plate. Two sets (four) of gate columns 52b provided with guide grooves facing each other are erected.
  Hereinafter, a flow rate adjusting mechanism that provides such a flow rate adjusting weir 52 and adjusts the flow rate to the subsequent rotary screen 53 will be described with reference to FIGS.

Normally, as shown in FIG. 10, the organic waste treatment apparatus 50 has a single weir plate 52a inserted on one side of the flow rate adjusting weir 52 and the second rotary screen 53b side where the weir is open. The mixture is being processed. The first rotary screen 53a is provided as a spare machine when something goes wrong. That is, when clogging or the like occurs in the operating second rotary screen 53b and the liquid mixture cannot be supplied to the second rotary screen 53b, the position where the weir plate 52a of the flow rate adjusting weir 52 is inserted. Is switched to the adjacent other side so that the mixed liquid can be processed by the spare first rotary screen 53a.

  Further, when the supply amount of the mixed liquid is too much for the processing capability of the second rotary screen 53b, the height of the weir plate 52a is set to H and the height of the overflow plate 51d as shown in FIG. If h is set to H> h, excess liquid overflows the overflow plate 51d and is discharged to the outside from the overflow pipe 51e, so that a constant amount of the mixed liquid always rotates in the second rotation. It can be processed by the expression screen 53b.

  The rotary screens 53a and 53b are solid-liquid separators for separating impurities in the liquid mixture from the liquid, and here, a rotary screen using a wire mesh belt conveyor is used. . Normally, a rotating screen with a wire mesh bucket is used to increase the trapping efficiency of impurities. A fine bar rotary screen can also be used as the rotary screen.

  Although the organic waste decomposition apparatus 54 arrange | positions the organic waste decomposition | disassembly apparatus 1 of 1st Embodiment, you may arrange | position the organic waste decomposition | disassembly apparatus 10 of 2nd Embodiment. The organic waste decomposition apparatus 54 is supplied with the trash (seed) separated by the second rotary screen 53b in the previous stage from the hopper 53d, and decomposes the object to be processed by the decomposition action of microorganisms.

  The organic waste disposal apparatus main body 50a is a box that accommodates the equipment and piping that constitute the main part described above. A container-type doorway 56 is provided on the side wall opposite to the side wall provided with the two inflow pipes 51a and 51b. Further, a gantry 57 is provided below the organic waste treatment apparatus main body 50a.

Hereinafter, the operation of the organic waste treatment apparatus 50 will be described with reference to FIGS.
  A mixture of wastewater containing organic waste (mainly solid organic waste) discharged from restaurants, hotels, food processing factories, etc. and domestic wastewater such as toilet wastewater is treated with organic waste from the inflow pipes 51a and 51b. It is supplied to the apparatus main body 50a. The mixed liquid supplied from the inflow pipes 51a and 51b to the organic waste treatment apparatus main body 50a collides with the baffle plate 51c surrounding the inflow pipes 51a and 51b, and is supplied downward without being scattered around. Is done.

Further, the mixed liquid flows through the side of the flow rate adjusting weir 52 where the dam plate 520 is not inserted and flows to the second rotary screen 53b. In the second rotary screen 53b, impurities (sediment) in the mixed liquid are separated. At this time, the separated water is introduced into the waste water treatment apparatus through the outflow pipe 53c, and the purified separated water is discharged into the river.

  The contaminants separated by the second rotary screen 53b are once received by the hopper 53d, and then supplied from the inlet of the organic waste decomposition device 54 to the organic waste decomposition device 54. The impurities supplied to the organic waste decomposition device 54 are crushed and mixed by the stirring means, and sufficient temperature, air and moisture are required to activate the decomposition action of microorganisms in the decomposition treatment chamber. Secured. As a result, the object to be processed is suitably decomposed in the organic emission decomposition processing chamber.

According to the organic waste treatment apparatus of one embodiment having such a configuration and action,
  (1) To provide an organic waste disposal apparatus capable of transporting and decomposing organic waste by disposing the organic waste decomposition apparatus of the first embodiment in an organic waste treatment line. it can. The same effect can be obtained even if the organic waste decomposition apparatus of the second embodiment is incorporated in the organic waste treatment line.
  (2) Since there is no need for a crusher or dehydrator for dust that was conventionally required in the latter stage of the screen, space and cost can be saved.
  (3) Since the flow rate adjusting mechanism for the rotary screen is provided so that the processing amount of the mixed liquid on the rotary screen is always constant, processing can be performed stably.

It is a front fragmentary sectional view of the organic waste decomposition | disassembly apparatus of 1st Embodiment arrange | positioned at the organic waste processing apparatus which concerns on this invention. It is a top view of the organic waste decomposition | disassembly apparatus of 1st Embodiment arrange | positioned at the organic waste processing apparatus which concerns on this invention. It is AA sectional drawing of FIG. It is a figure for demonstrating a floor heating means. It is a front fragmentary sectional view of the organic waste decomposition | disassembly apparatus of 2nd Embodiment arrange | positioned at the organic waste processing apparatus which concerns on this invention. It is a top view of the organic waste decomposition | disassembly apparatus of 2nd Embodiment arrange | positioned at the organic waste processing apparatus which concerns on this invention. It is BB sectional drawing of FIG. It is a figure for demonstrating a floor heating means. It is a front fragmentary sectional view of the organic waste disposal device of one embodiment concerning the present invention. It is a top view of the organic waste disposal apparatus of one embodiment concerning the present invention. It is an external view of the weir for flow rate adjustment. It is a figure for demonstrating the flow volume adjustment mechanism of a rotary screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 10: Organic waste decomposition device 11, 41: Decomposition processing room 12: Floor heating room 13: Floor
17: Relief valve 18: Flange 19: Ceiling 20: First stirring means 21: Second stirring means 22: Stirring blades 23, 24: Rotating shaft 25: Stirring rod 26: Raising blade 30: Water inlet 31: Drain port 32 : Heater 35: Heat insulating material 36: Chamber 44: Release valve 45, 46: Stirring means 47, 48: Stirring shaft 49: Stirring blade 50: Organic waste treatment apparatus 53a: First rotary screen 53b: Second rotary type screen

Claims (2)

  An organic waste treatment device having an organic waste decomposition device disposed downstream of the discharge end of an organic waste inflow pipe that introduces organic waste into the body of the organic waste treatment device by drainage In addition, two flow adjusting weirs for adjusting the flow rate, an overflow plate having a height lower than that of the flow adjusting weir, and two rotary screens for separating the organic discharge from the waste water are arranged, and the two rotary type An organic waste decomposition device is disposed downstream of the screen, and the organic waste decomposition device uniformly heats the decomposition treatment chamber in which the organic waste is decomposed by microorganisms and the entire floor of the decomposition treatment chamber. The decomposition treatment chamber comprises an agitating means for mixing the organic discharge and the microorganisms that decompose the organic waste, and the agitating means protrudes outward in the axial radial direction from the two rotation shafts. A sharp slope on the tip of the stirring rod The slanting cone pyramid fraying blades are provided, and the fisting blades on the two rotating shafts are attached so that the stirring areas partially overlap, and the floor of the decomposition treatment chamber is the rotation trajectory of the filing blades The organic waste treatment apparatus is characterized in that it is formed in an arc shape so as to extend along the surface, and the entire surface is covered with a heat insulating material. A floor heating means directly heats the entire floor of the decomposition treatment chamber with a liquid heating medium, a liquid supply / discharge means for supplying and discharging the liquid to and from the floor heating room, and the liquid to the floor heating room. The organic waste treatment apparatus according to claim 1, wherein the organic waste treatment apparatus is configured by a heater that is heated at a temperature as the heating medium.

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