Organic material manufacturing apparatus

The apparatus addresses dilution issues by recycling liquid within the treatment tank, enhancing transfer efficiency and maintaining high concentration, thus promoting effective fermentation and production capacity.

JP2025166419APending Publication Date: 2025-11-06小川 弘
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Patent Information

Application Number
JP2024070451
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-04-24
Publication Date
2025-11-06

AI Technical Summary

Technical Problem

Existing organic material production apparatuses dilute the liquid in the treatment tank during the transfer of crushed organic residue, making it difficult to produce high-concentration organic materials.

Method used

The apparatus includes a treatment tank with a forwarding means to send liquid from the tank upstream of the transfer means, a discharge means to recycle supernatant liquid, and a control unit to manage the forwarding and discharge processes, ensuring the concentration of the liquid is maintained during transfer and fermentation.

Benefits of technology

This configuration enhances transfer efficiency, maintains high concentration of organic materials, and promotes effective fermentation by recycling liquid within the system, thereby improving production capacity.

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Abstract

To provide an organic material manufacturing apparatus that can transfer organic residues fractured so that liquid in a processing tank is prevented from being diluted to facilitate a liquefaction / fermentation process.SOLUTION: The organic material manufacturing apparatus is provided with: a disposer 2 as a fracturing machine that fractures organic residues; a processing tank 3 into which a fermentation material mainly composed of a microbial group and moisture can be introduced; a transfer device 4 as transfer means that transfers the organic residues fractured by the disposer 2 to the processing tank 3; and an ejecting device 5 as ejecting means that ejects organic liquid which is an organic material obtained by fermenting the organic residues with the fermentation material in the processing tank 3. The processing tank 3 is provided with a forwarding device 6 as forwarding means that forwards the organic liquid in the processing tank 3 to the disposer 2 arranged at an upstream side of the transfer device 4.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present invention relates to an organic material production apparatus that uses microorganisms to ferment organic residues such as food waste and septic tank sludge, thereby producing organic materials that can be used as fertilizers, feed, soil activators, etc. [Background technology]

[0002] Conventionally, there has been a device that produces organic materials, mainly amino acids, useful as organic materials for fertilizers and the like, by crushing organic residue, such as food waste, using a crusher, pouring the organic residue into a treatment tank filled with a mixture of lactic acid bacteria, yeast, photosynthetic bacteria, and water, and carrying out a liquefaction and fermentation process using the action of a complex microbial community (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-214346 A (pages 6-7, Figure 2) Summary of the Invention [Problem to be solved by the invention]

[0004] In the organic material production apparatus described in Patent Document 1, the organic residue is crushed to ensure smooth liquefaction and fermentation. To increase the fluidity of the crushed organic residue and ensure smooth supply to the treatment tank, water is added to the crushed organic residue when it is transferred to liquefy it. However, the water is transferred along with the organic residue, diluting the liquid inside the treatment tank, making it difficult to produce high-quality organic material with a high concentration.

[0005] The present invention has been made with a focus on these problems, and aims to provide an organic material manufacturing apparatus that can promote liquefaction fermentation treatment by transferring crushed organic residue without diluting the liquid in the treatment tank. [Means for solving the problem]

[0006] In order to solve the above problems, the organic material manufacturing apparatus of the present invention comprises: The method comprises: a crusher for crushing organic residue; a treatment tank into which a fermentation material mainly composed of microorganisms and water can be introduced; a transfer means for transferring the organic residue crushed by the crusher to the treatment tank; and a discharge means for discharging the organic material obtained by fermenting the organic residue with the fermentation material in the treatment tank. The treatment tank is characterized by being provided with a forwarding means for forwarding the liquid in the treatment tank to the upstream side of the transfer means. According to this feature, by sending the liquid containing fermentation material or organic material present in the treatment tank upstream of the transfer means, the transferred liquid can improve the transfer efficiency of the organic residue without lowering the concentration of the liquid in the treatment tank, and initial fermentation treatment can be performed before supplying it to the treatment tank.

[0007] The treatment tank includes at least a receiving tank that receives the organic residue transferred by the transfer means, and a discharge tank that is provided with the discharge means downstream of the receiving tank, The forwarding means is characterized in that it is provided above the discharge means in the discharge tank. According to this feature, the supernatant liquid of the organic material obtained in the treatment tank can be recycled, so that the concentration of the organic material discharged by the discharge means can be increased.

[0008] The apparatus is characterized by including a control unit that starts and stops the forwarding means in conjunction with the start and stop of the crusher. According to this feature, the liquid in the treatment tank can be circulated only when the crusher is in operation, so that the production capacity of organic materials can be maintained at a high level.

[0009] The present invention is characterized in that an adjustment means is provided that can adjust the height position of the transfer means within the treatment tank. According to this feature, the height position of the transfer means can be adjusted appropriately depending on the state of the supernatant liquid in the treatment tank.

[0010] The forwarding means is characterized by sending the liquid in the treatment tank to a residue hopper provided in the crusher. This feature makes it possible to increase the fluidity of the organic residue in the hopper.

[0011] The forwarding means is characterized by sending the liquid in the treatment tank to a storage tank in which the organic residue crushed by the crusher is stored. According to this feature, the organic residue crushed by the crusher is liquefied and its fluidity is increased by supplying a liquid before the organic residue is transferred by the transfer means, thereby improving the transfer efficiency of the organic residue. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a front view showing an organic material manufacturing apparatus according to an embodiment of the present invention; [Figure 2] 1 is a plan view showing an organic material manufacturing apparatus according to an embodiment of the present invention; [Figure 3] 2 is a vertical cross-sectional view showing the internal structure of a main part of the organic material manufacturing apparatus. FIG. [Figure 4] FIG. 1 is a block diagram showing the configuration of an organic material manufacturing apparatus. [Figure 5] FIG. 10 is a front view showing an organic material manufacturing apparatus as a modified example of the present invention. [Example]

[0013] An organic material manufacturing apparatus according to an embodiment of the present invention will be described with reference to Figures 1 to 4. In the following description, the near side of Figure 1 will be referred to as the front of the organic material manufacturing apparatus, the far side as the rear, the left side as the left side, and the right side as the right side.

[0014] 1 and 2, an organic material manufacturing apparatus 1 according to an embodiment of the present invention is primarily equipped with a disposer 2 as a crusher capable of crushing (or pulverizing) organic residues such as food waste and plant waste into appropriate sizes, a treatment tank 3 to which a fermentation agent primarily composed of microorganisms such as lactic acid bacteria, yeast, and koji mold, and water can be introduced, a transfer device 4 as a transfer means for transferring the organic residue crushed by the disposer 2 to the treatment tank 3, a discharge device 5 as a discharge means for discharging liquid organic material (hereinafter referred to as organic liquid) obtained by fermenting the organic residue with the fermentation agent in the treatment tank 3 to the outside of the treatment tank 3, a storage tank 7 for storing the organic liquid discharged by the discharge device 5, and a transfer device 6 as a transfer means for transferring the liquid in the treatment tank 3 to the disposer 2. The organic material includes materials used as fertilizer, feed, soil activators, etc.

[0015] A hopper 11 is provided that is connected to the top of the disposer 2 and is open and inclined upward so that organic residue can be fed into it, and the organic residue fed into the hopper 11 is crushed by the disposer 2. The disposer 2 has a crushing blade (not shown), a drive motor 21 that drives the crushing blade, and a feed detection switch 22 (see Figure 4) that detects organic residue fed into the hopper 11.

[0016] The transfer device 4 is mainly composed of a transfer pipe 42 that transfers the organic residue crushed by the disposer 2 to the treatment tank 3, and a transfer pump 41 provided midway along the transfer pipe 42. The transfer pipe 42 extends from the disposer 2 to the top of the treatment tank 3 via the transfer pump 41, and the transferred organic residue can be discharged into the treatment tank 3 from an outlet 42a provided at the top.

[0017] The treatment tank 3 is formed in a generally horizontally elongated rectangular shape in a plan view, and is provided therein, from the upstream side (left side in the figure) to the downstream side (right side in the figure), with a lactic acid bacteria fermentation tank 3a containing mainly lactic acid bacteria, a yeast / koji mold fermentation tank 3b containing mainly yeast / koji mold, and a maturation adjustment tank 3c in which the organic liquid stirred and fermented in the yeast / koji mold fermentation tank 3b is matured. The lactic acid bacteria fermentation tank 3a, the yeast / koji mold fermentation tank 3b, and the maturation adjustment tank 3c are each separated by a partition plate 15, and as shown in Figure 3, the lactic acid bacteria fermentation tank 3a serves as a receiving tank for receiving organic residue discharged from the discharge port 42a of the transfer pipe 42.

[0018] The organic liquid that overflows from the lactic acid bacteria fermentation tank 3a enters the downstream yeast and koji mold fermentation tank 3b, and the organic liquid that overflows from the yeast and koji mold fermentation tank 3b enters the further downstream maturation adjustment tank 3c. Note that the density of the dots in Figure 3 represents the concentration of the liquid.

[0019] 1 and 2, the lactic acid bacteria fermentation tank 3a, the yeast / koji mold fermentation tank 3b, and the maturation adjustment tank 3c are each equipped with agitators 16a to 16c. The agitator 16a provided in the lactic acid bacteria fermentation tank 3a and the agitator 16b provided in the yeast / koji mold fermentation tank 3b have a high agitation force so that the organic liquid in the entire fermentation tank can be agitated, while the agitator 16c provided in the maturation adjustment tank 3c has a lower agitation force than the agitators 16a and 16b so that the organic liquid in the lower part of the fermentation tank can be uniformly agitated. The upper part of the treatment tank 3 is closed by an upper wall 18, and the interior can be inspected by opening a plurality of fermentation tank inspection hatches 17a and an overflow inspection hatch 17b formed in the upper wall 18.

[0020] A chemical tank 35 is provided adjacent to the treatment tank 3, and stores a chemical solution containing lactic acid bacteria, yeast, and koji mold as its main components. When the organic liquid inside the treatment tank 3 becomes diluted, the chemical solution inside the chemical tank 35 can be added at any time through a chemical solution inlet 37 provided at the top of the lactic acid bacteria fermentation tank 3a. An opening 36 is provided at the top of the chemical tank 35 so that the chemical solution can be replenished through the opening 36.

[0021] The discharge device 5 is mainly composed of a discharge pump 51 located at approximately the center in the front-to-back direction on the lower right side of the aging adjustment tank 3c, and a discharge pipe 52 that transports the organic liquid discharged by the discharge pump 51 to the storage tank 7.

[0022] As shown in FIG. 3 , the treatment tank 3 is provided with a first level switch 53a that detects when the water level in the aging adjustment tank 3c reaches a first high level, and a second level switch 53b that detects when the water level in the aging adjustment tank 3c falls below a second low level. Based on the input status of the detection signals from the first level switch 53a and the second level switch 53b, if it is determined that the water level in the aging adjustment tank 3c has reached the first level, the discharge pump 51 is activated to start discharging the organic liquid from the aging adjustment tank 3c and transfer it to the storage tank 7. As a result, the high-concentration organic liquid that has matured in the aging adjustment tank 3c and settled at the bottom is discharged and stored in the storage tank 7. In other words, the storage tank 7 stores the organic liquid that has completed fermentation and aging in the treatment tank 3 and has been commercialized, ready for shipment. If it is determined that the water level in the aging adjustment tank 3c has fallen below the second low level, the discharge pump 51 is stopped to stop discharging the organic liquid.

[0023] 1 and 2, the sending device 6 is mainly composed of a sending pump 61 provided at the rear position on the upper right side inside the aging adjustment tank 3c, and a sending pipe 62 that sends the organic liquid discharged by the sending pump 61 to the disposer 2. As shown in FIGS. 2 and 3, the sending pump 61 is provided at a position above the discharge pump 51 of the discharge device 5 and at a position further rearward than the discharge pump 51, so that the supernatant portion (hereinafter referred to as the supernatant liquid) of the organic liquid obtained inside the aging adjustment tank 3c can be sent, thereby preventing a decrease in the concentration of the organic liquid discharged by the discharge device 5. In addition, the sending pipe 62 that extends from the sending pump 61 to the outside of the treatment tank 3 is extended along the outer wall of the treatment tank 3 to the hopper 11.

[0024] The discharge section 62b of the deadhead pipe 62 is formed in a generally rectangular frame shape in plan view and is disposed above the hopper 11, and a plurality of discharge ports 62a capable of discharging the organic liquid are disposed above each of the four inclined input surfaces 11a formed at the top of the hopper 11. Each discharge port 62a may consist of a single opening, or may consist of multiple fine holes like a shower head.

[0025] In this way, the supernatant liquid transferred from the delivery pump 61 via the delivery pipe 62 is supplied to the disposer 2 via the hopper 11. In other words, the supernatant liquid discharged from the maturation adjustment tank 3c is delivered to the disposer 2 via the delivery device 6, and is returned to the treatment tank 3 together with the organic residue fed into the hopper 11.

[0026] Next, the configuration of the organic material manufacturing apparatus 1 will be described with reference to the block diagram of Fig. 4. The organic material manufacturing apparatus 1 has a control unit 30 that controls various devices. Connected to this control unit 30 are the drive motor 21 and input detection switch 22 of the disposer 2, the transfer pump 41 of the transfer device 4, the discharge pump 51 of the discharge device 5, the dead-end pump 61 of the dead-end device 6, the first level switch 53a and the second level switch 53b, and the agitators 16a to 16c.

[0027] The control unit 30 starts the drive motor 21 to start crushing based on the determination that organic residue has been added to the hopper 11 based on the input of a detection signal from the input detection switch 22. After starting, the control unit 30 stops the drive motor 21 to end crushing based on the determination that no detection signal has been input from the input detection switch 22 for a predetermined period of time. In this embodiment, the disposer 2 starts or stops depending on whether organic residue has been added, but the disposer 2 may also be started or stopped manually.

[0028] Furthermore, the control unit 30 starts or stops the transfer pump 41 of the transfer device 4 in conjunction with the disposer 2, thereby starting or stopping the transfer of the organic residue. In this embodiment, the transfer pump 41 of the transfer device 4 is started or stopped in conjunction with the disposer 2, but the transfer pump 41 of the transfer device 4 may also be started or stopped manually.

[0029] Furthermore, based on the fact that detection signals are being input from both the first level switch 53a and the second level switch 53b, the control unit 30 starts the discharge pump 51 of the discharge device 5 to start discharging the organic liquid. Furthermore, based on the fact that the input of detection signals from both the first level switch 53a and the second level switch 53b has ceased during startup, the control unit 30 stops the discharge pump 51 of the discharge device 5 to end the discharge of the organic material.

[0030] In this embodiment, the discharge pump 51 of the discharge device 5 is started or stopped depending on the input status of the detection signals from the first level switch 53a and the second level switch 53b, but the method of detecting the water surface level is arbitrary and can be changed in various ways. Also, the discharge pump 51 of the discharge device 5 may be started or stopped depending on the amount of organic residue supplied to the lactic acid bacteria fermenter 3a, or the discharge pump 51 of the discharge device 5 may be started or stopped manually.

[0031] Furthermore, the control unit 30 starts or stops the transfer of the organic liquid by starting or stopping the transfer pump 61 of the transfer device 6 in conjunction with the disposer 2. In this embodiment, the transfer pump 61 of the transfer device 6 is started or stopped in conjunction with the disposer 2, but the transfer pump 61 of the transfer device 6 may also be started or stopped manually.

[0032] In the organic material manufacturing apparatus 1 configured as above, as shown in Figures 1 to 3, when organic residue is fed into the hopper 11, the transfer pump 41 of the transfer device 4 starts in conjunction with the disposer 2, and the organic residue is crushed by the disposer 2, transferred by the transfer device 4, and then supplied to the lactic acid bacteria fermentation tank 3a. A mixture of water and lactic acid bacteria is stored in the lactic acid bacteria fermentation tank 3a, and when the organic residue is supplied, fermentation and liquefaction by the lactic acid bacteria are promoted by stirring. Immediately after the organic residue is supplied, decomposition has not progressed and beneficial bacteria cannot work, making it prone to spoilage. Therefore, spoilage is prevented by first activating the lactic acid bacteria to lower the pH.

[0033] When the lactic acid bacteria fermentation tank 3a becomes full, the supernatant liquid overflows and enters the yeast and koji mold fermentation tank 3b, where it is stored and enzymatic decomposition is promoted. Also, when the yeast and koji mold fermentation tank 3b becomes full, the supernatant liquid overflows and enters the maturation adjustment tank 3c, where it is stored and matured. The organic residue ferments, matures, and liquefies over a period of about one week to ten days before being transferred from the lactic acid bacteria fermentation tank 3a to the yeast and koji mold fermentation tank 3b and then to the maturation adjustment tank 3c, ultimately becoming an organic liquid mainly composed of amino acids that are useful as an organic material for fertilizer, etc.

[0034] When the aging adjustment tank 3c is full, that is, when the water level in the aging adjustment tank 3c reaches the first level, the discharge pump 51 of the discharge device 5 is started, and the organic liquid remaining in the lower part of the aging adjustment tank 3c is discharged out of the tank 3c, and the organic liquid is stored in the storage tank 7. When the water level in the aging adjustment tank 3c falls below the second level, the discharge pump 51 of the discharge device 5 stops discharging the organic liquid. In other words, when new organic residue is supplied, the organic liquid is discharged, and the water level in the treatment tank 3 is maintained within the range between the first and second levels.

[0035] Furthermore, when the organic residue placed in the hopper 11 is crushed by the disposer 2, water is required to ensure smooth crushing. If fresh water or the like is supplied to the organic residue placed in the hopper 11, this water will be supplied to the lactic acid bacteria fermentation tank 3a together with the organic residue, diluting the organic liquid stored in the treatment tank 3 and making it difficult to produce a high-concentration, high-quality organic liquid.

[0036] Therefore, in the present invention, when the disposer 2 is started in response to the introduction of organic residue, the transfer pump 61 of the transfer device 6 is activated in conjunction with the disposer 2, and the supernatant liquid transferred from the transfer device 6 is returned to the hopper 11 and used to crush the organic residue. More specifically, the low-concentration, highly fluid supernatant portion of the organic liquid is discharged to the input surface 11a of the hopper 11, so that the organic residue introduced into the hopper 11 does not accumulate on the input surface 11a and can be smoothly introduced into the disposer 2 for efficient crushing. Furthermore, since the supernatant liquid, which is part of the organic liquid in the treatment tank 3, is used for transfer without adding new fresh water or the like for crushing to the disposer 2, the organic liquid stored in each tank of the treatment tank 3 is not diluted even when it is supplied to the lactic acid bacteria fermentation tank 3a together with the organic residue. Therefore, the fermentation process in the treatment tank 3 is effectively promoted. Furthermore, even if the organic liquid is sent by the return pump 61, it is returned to the lactic acid bacteria fermentation tank 3a together with the organic residue, so the water surface level in the treatment tank 3 does not drop and is maintained within the range between the first level and the second level.

[0037] [Actions and Effects] As described above, the organic material manufacturing apparatus 1 as an embodiment of the present invention comprises a disposer 2 as a crusher for crushing organic residue, a treatment tank 3 into which fermentation material mainly composed of microorganisms and moisture can be introduced, a transfer device 4 as a transfer means for transferring the organic residue crushed by the disposer 2 to the treatment tank 3, and a discharge device 5 as a discharge means for discharging the organic liquid, which is the organic material obtained by fermenting the organic residue with the fermentation material in the treatment tank 3, and the treatment tank 3 is provided with a transfer device 6 as a transfer means for transferring the organic liquid in the treatment tank 3 to the disposer 2 located upstream of the transfer device 4.

[0038] According to this, by sending the organic liquid containing fermentation material or organic material present in the treatment tank 3 to the disposer 2, the organic residue can be crushed without reducing the concentration of the organic liquid in the treatment tank 3. In addition, the crushing efficiency of the organic residue can be improved by the sent organic liquid, and initial fermentation processing can be performed during crushing.

[0039] The treatment tank 3 has at least a lactic acid bacteria fermentation tank 3a as a receiving tank for receiving the organic residue transferred by the transfer device 4, and a maturation adjustment tank 3c as a discharge tank in which a discharge device 5 is provided downstream of the lactic acid bacteria fermentation tank 3a. The transfer pump 61 of the transfer device 6 is provided above the discharge pump 51 of the discharge device 5 in the maturation adjustment tank 3c. This allows the supernatant of the organic liquid obtained in the treatment tank 3, i.e., the liquefied organic liquid with a low concentration, to be transferred, thereby increasing the concentration of the finished organic liquid discharged by the discharge device 5, and also allowing the supply of highly fluid supernatant to the hopper 11, thereby smoothing crushing.

[0040] In addition, by providing a control unit 30 that starts and stops the transfer pump 61 of the transfer device 6 in conjunction with the start and stop of the disposer 2, the organic liquid in the treatment tank 3 can be transferred only when the disposer 2 is started, thereby maintaining a high production capacity for the organic liquid.

[0041] In addition, although not specifically shown, an adjustment means is provided that can adjust the height position of the transfer pump 61 of the transfer device 6 within the treatment tank 3, so that the height position of the transfer pump 61 of the transfer device 6 can be appropriately adjusted depending on the state of the supernatant liquid within the treatment tank 3.

[0042] The adjustment means may be, for example, a screw member attached to the dead-water pump 61 and multiple screw holes provided vertically in the wall of the treatment tank 3. The height of the dead-water pump 61 can be adjusted by threading the screw member into one of the screw holes. Other height adjustment means, such as a slide rail, may also be used. Since the dead-water pump 61 circulates the supernatant liquid of the organic liquid, it is preferable to install it as high as possible in the aging adjustment tank 3c. In particular, since the water level in the aging adjustment tank 3c constantly fluctuates between the first level switch 53a and the second level switch 53b, it is preferable to install the dead-water pump 61 at approximately the same height as the second level switch 53b or slightly lower than the second level switch 53b.

[0043] Furthermore, the transfer device 6 can increase the fluidity of the organic residue in the hopper 11 by sending the organic liquid in the treatment tank 3 to the hopper 11 for the residue that the disposer 2 is provided with.

[0044] In addition, a first level switch 53a and a second level switch 53b are provided in the treatment tank 3 to enable the discharge pump 51 of the discharge device 5 to be started and stopped depending on the liquid level in the treatment tank 3.

[0045] Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention also includes modifications and additions that do not deviate from the gist of the present invention.

[0046] For example, in the above embodiment, the organic residue crushed by the disposer 2 as a crusher is transferred to the treatment tank 3 by the transfer device 4, and the liquid (supernatant) in the treatment tank 3 transferred by the transfer device 6 is transferred to the hopper 11 provided at the top of the disposer 2, so that the liquid (supernatant) is supplied to the organic residue before crushing. However, the present invention is not limited to this, and as long as the liquid (supernatant) in the treatment tank 3 is transferred to the upstream side of the transfer device 4 by the transfer device 6, it does not necessarily have to be transferred to the crusher, and as will be described later, the liquid (supernatant) in the treatment tank 3 may be supplied to the organic residue after crushing.

[0047] Here, a brief explanation will be given using a modified organic material manufacturing apparatus 1A shown in Fig. 5. In this modified example, the same components and parts as those in the above embodiment will be denoted by the same reference numerals and explanations will be omitted.

[0048] 5, an organic material manufacturing apparatus 1A as a modified example includes, instead of the disposer 2, a crusher 70 having a hopper 71 at its top into which organic residue can be added, and a storage tank 73 capable of storing the organic residue crushed by the crusher 70, and the organic residue stored in the storage tank 73 is transferred to the treatment tank 3 by a transfer device 4. The crusher 70 has crushing blades (not shown) and a drive motor (not shown) that drives the crushing blades.

[0049] A screen (not shown) is provided inside the crusher 70, and the crushed organic residue is drained by the screen inside the crusher 70. This allows the organic residue to be dehydrated before being supplied to the storage tank 73, preventing the water contained in the organic residue from being transferred from the storage tank 73 to the treatment tank 3 and diluting the liquid in the treatment tank 3. The transfer pump 41a is provided inside the storage tank 73 as a submersible pump.

[0050] The liquid (supernatant) in the treatment tank 3 transferred by the transfer device 6 is sent to the storage tank 73, so that the crushed organic residue in the storage tank 73 and the liquid (supernatant) in the treatment tank 3 merge, and this storage tank 73 is connected in communication with the transfer pipe 42 of the transfer device 4.

[0051] In this way, the liquid (supernatant) in the treatment tank 3 is supplied to the organic residue crushed by the crusher 70 before it is transferred by the transfer device 4, thereby liquefying it and increasing its fluidity, thereby improving the transfer efficiency of the organic residue. In other words, the liquid (supernatant) in the treatment tank 3 is supplied to the storage tank 73 in which the organic residue dehydrated during crushing by the crusher 70 is stored, thereby preventing the liquid in the treatment tank 3 from being diluted.

[0052] In this modified example, the liquid (supernatant) in the treatment tank 3 is supplied to a storage tank 73 provided upstream of the transfer pipe 42 of the transfer device 4, but it is also possible to connect the transfer pipe 62 directly to the upstream side of the transfer pump 41a in the transfer pipe 42 without providing the storage tank 73, and to send the liquid (supernatant) in the treatment tank 3 to the transfer pipe 42.

[0053] In addition, in the above embodiment, a form in which a disposer 2 is applied as a crusher for crushing organic residue is exemplified, but the present invention is not limited to this, and crushers, pulverizers, etc. other than disposers may also be applied.

[0054] In addition, in the above embodiment, a form in which the transfer device 4 and the transfer pipe 42 are used as a transfer means for transferring the organic residue crushed by the crusher to the treatment tank is exemplified, but the present invention is not limited to this, and a conveyor or the like may be used as long as it is capable of transferring the organic residue.

[0055] Furthermore, the discharge device 5 and the forwarding device 6 are exemplified as being configured with a discharge pump 51, a forwarding pump 61, a discharge pipe 52, and a forwarding pipe 62, but the present invention is not limited to this, and devices other than pumps may be applied as long as they are capable of discharging and forwarding the liquid, or the liquid may be discharged and forwarded by gravity flow.

[0056] In the above embodiment, the discharge pump 51 of the discharge device 5 is shown to be disposed below the maturation adjustment tank 3c, but the present invention is not limited to this. The discharge pump 51 may be disposed at a location other than the bottom of the maturation adjustment tank 3c, or may be disposed in the lactic acid bacteria fermentation tank 3a or the yeast / koji mold fermentation tank 3b.

[0057] In the above embodiment, the delivery pump 61 of the delivery device 6 is shown to be disposed above the maturation adjustment tank 3c, but the present invention is not limited to this. The delivery pump 61 may be disposed at a location other than above the maturation adjustment tank 3c, or may be disposed in the lactic acid bacteria fermentation tank 3a or the yeast / koji mold fermentation tank 3b.

[0058] In the above embodiment, the interior of the treatment tank 3 is shown as being divided by a partition plate 15 into a lactic acid bacteria fermentation tank 3a, a yeast and koji mold fermentation tank 3b, and a maturation adjustment tank 3c, but the present invention is not limited to this, and the treatment tank 3 may be divided into four or more fermentation tanks, or may not be divided into multiple fermentation tanks.

[0059] Furthermore, in the above embodiment, the organic material discharged by the discharge device 5 is stored in the storage tank 7, but the present invention is not limited to this, and as long as it can at least be discharged outside the treatment tank, it does not necessarily have to be stored in the storage tank 7. [Explanation of symbols]

[0060] 1,1A organic material manufacturing equipment 2. Disposer (crusher) 3 Treatment tank 3a Lactic acid bacteria fermentation tank (receiving tank) 3b Koji fermentation tank 3c Aging adjustment tank (discharge tank) 4 Transfer device (transfer means) 5 Discharge device (discharge means) 6. Transportation device (transportation means) 7. Storage Tank 11 Hopper (residue hopper) 21 Drive motor 22 Closing detection switch 30 Control Unit 35 Chemical tank 41,41a Transfer pump 42 Transfer pipe 42a Outlet 51 Discharge pump 52 Discharge pipe 53a First level switch 53b Second level switch 61 Deadhead pump 62 Transportation 70 Crusher 71 Hopper 73 Reservoir

Claims

1. The method comprises: a crusher for crushing organic residue; a treatment tank into which a fermentation material mainly composed of microorganisms and water can be introduced; a transfer means for transferring the organic residue crushed by the crusher to the treatment tank; and a discharge means for discharging the organic material obtained by fermenting the organic residue with the fermentation material in the treatment tank. The organic material manufacturing apparatus is characterized in that the treatment tank is provided with a transfer means for transferring the liquid in the treatment tank to the upstream side of the transfer means.

2. The treatment tank includes at least a receiving tank that receives the organic residue transferred by the transfer means, and a discharge tank that is provided with the discharge means downstream of the receiving tank, 2. The organic material manufacturing apparatus according to claim 1, wherein the transfer means is provided above the discharge means in the discharge tank.

3. 2. The organic material manufacturing apparatus according to claim 1, further comprising a control unit that starts and stops the forwarding means in conjunction with the start and stop of the crusher.

4. 2. The organic material manufacturing apparatus according to claim 1, further comprising an adjusting means for adjusting the height position of the transfer means within the treatment tank.

5. 5. The organic material manufacturing apparatus according to claim 1, wherein the transfer means transfers the liquid in the treatment tank to a residue hopper provided in the crusher.

6. 5. The organic material manufacturing apparatus according to claim 1, wherein the transfer means transfers the liquid in the treatment tank to a storage tank in which the organic residue crushed by the crusher is stored.

Citation Information

Patent Citations

  • Apparatus and method for producing liquid fertilizer

    JP2012214346A