JP4804370B2 - Manure processing equipment - Google Patents

Description

    The present invention relates to a manure processing apparatus.

  In recent years, environmental conservation issues have been highlighted, and in order to achieve symbiosis between humans and animals, serious discussions have been held on how to create an environment that can satisfy each other while maintaining a state that does not disrupt human living environments. It has come to be. At that time, attention has been given to the treatment of livestock excreta as well as human excreta.

  In general, when manure from cattle, pigs, other livestock, etc. is processed, the solid matter is removed from the excreted excreta and then stored in a large tank and aerated to reduce the smell of manure. In addition, oxidative fermentation treatment is carried out by promoting the self-decomposition of microorganisms, processed into a desired aerated manure treatment solution, and this is used as a fertilizer. For example, in Patent Document 1, manure fluid is stored in a pre-storage tank, the stored manure fluid is aerated in an aeration treatment tank, and the aeration-treated manure fluid subjected to the aeration process is aged in an aging tank. The desired aeration treatment manure fluid is processed.

JP 2003-126896 A

  However, in the conventional manure processing apparatus, when the amount of the manure fluid in the pre-reservoir decreases, the oxidation fermentation process in the pre-reservoir has been delayed. When the oxidation fermentation treatment in the pre-storage tank is delayed, it takes time for the oxidation fermentation treatment in the aeration treatment tank and the aging tank, and finally it takes time to generate the aeration treatment fluid having desired characteristics, As a result, the aeration process cannot be performed efficiently.

  Then, an object of this invention is to provide the excrement processing apparatus which can perform an aeration process efficiently.

  In order to solve the above-described problems, a manure processing apparatus according to the present invention includes a solid-liquid separator that separates manure into solid matter and manure fluid, and a compost that stores solids separated by the solid-liquid separator. A unit, a pre-reservoir for storing the manure fluid separated by the solid-liquid separator, an aeration treatment tank for aeration treatment of the manure fluid stored in the pre-reservoir, and an output from the aeration treatment tank , A pipe that is provided between the pre-reservation tank and the aeration treatment tank, sends manure fluid in the pre-storage tank to the aeration treatment tank, the pre-storage tank, and the aeration process A first pipe provided between the tank and the manure fluid in the aeration tank to the pre-storage tank; a first valve provided in the first pipe; and the first valve A control device that opens and closes the aeration treatment tank, An aerator disposed in the vicinity of the bottom of the tank, and an output part for defoaming water by defoaming the foam generated in the tank at the top, and outputting this to the aging tank, the pre-storage tank Is provided with a circulation pump provided at a position lower than the liquid level of the excrement fluid constantly stored at a predetermined level in the tank, and a pre-storage tank level sensor for detecting the height of the liquid level in the tank, When the control device detects that the liquid level of the front storage tank is lower than a predetermined level by the front storage tank level sensor, the control device opens the first valve from the aeration processing tank. The excrement fluid is output to the pre-storage tank through a pipe.

  Here, a pipe that is provided between the pre-storage tank and the aging tank and that feeds the excrement fluid in the aging tank to the pre-storage tank, and a second valve provided in the pipe are further provided. The aeration tank further includes an aeration tank level sensor that detects the level of the liquid level in the tank, and the aging tank further includes an aging tank level sensor that detects the height of the liquid level in the tank. When the front storage tank level sensor detects that the liquid level of the front storage tank is lower than a predetermined level, the control device detects the aeration tank by the aeration tank level sensor and the aging tank level sensor. And the liquid level of the aging tank is detected, and the first valve or the second valve is selectively opened based on the detected value, and the pre-storage is performed from the aeration tank or the aging tank. The manure fluid into the tank It may be allowed to force.

  According to the present invention, when the liquid level of the pre-reservoir is lower than a predetermined level, the first valve is opened to output manure fluid from the aeration tank to the pre-reservoir via the first pipe. Thus, it becomes possible to keep the amount of the excrement fluid in the front storage tank at a predetermined value, and the aeration process can be performed efficiently.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a manure processing apparatus according to the present invention will be described in detail with reference to the drawings.

[Configuration of manure processing equipment]
As shown in FIG. 1 to FIG. 5, the excrement processing apparatus according to this embodiment includes an aeration processing tank 1 that performs an aeration process of excrement fluid, and excrement fluid that has been aerated in the aeration processing tank 1 described above with predetermined characteristics. And a pre-reserving tank for supplying manure fluid to the aeration treatment tank 1 described above by introducing the manure fluid disposed in the subsequent stage of the maturation tank 2 and separated into solid and liquid from the excrement. 3, an external storage tank 4 for storing the aeration treatment liquid from the aging tank 2, a drain tank 5 for storing the sediment in the lower part of the aeration processing tank 1 described above, and excrement such as livestock as solids and manure A solid-liquid separator 6 that separates into a fluid, a controller 7 that controls the operation of each part of the entire processing tank, and a controller 8 that performs operations related to the control of the entire aeration processing tank based on instructions from the controller 7. Has been.

  In this embodiment, one aeration treatment tank is provided. However, the number of aeration treatment tanks is not limited to one, and may be appropriately changed, for example, two.

<Configuration of aeration tank>
The aeration treatment tank 1 will be specifically described with reference to FIG. 2. A box 10 that defines the outer shape of the aeration treatment tank 1 is a rectangular parallelepiped as a whole, and the inside is partitioned into an aeration treatment unit 1 a and a circulation unit 1 b by a partition wall 11. It has been. Above the aeration processing unit 1a, a manure fluid diffusion unit 12, output devices 13 and 14, and a defoaming water tank 25 for storing defoamed manure fluid (antifoam water) are provided. A shower 15 that outputs feces and urine fluid is disposed above the inside of the aeration processing unit 1a and the circulation unit 1b, and an aerator 16 that mixes and discharges the manure fluid and air below the inside of the aeration processing unit 1a. An air supply device 17 that is directly supplied into the excreta fluid in the aeration treatment unit 1a and further accelerates the aeration treatment is disposed. At the bottom of the aeration treatment tank 1, sediment at the bottom of the aeration treatment tank 1 is sent to the circulation unit 1b. A moving mixer 18 is disposed. Below the inside of the circulation unit 1b provided alongside the aeration processing unit 1a, the pump 19 for sending the manure fluid moved from the aeration processing unit 1a to the manure fluid diffusing unit 12, and the manure fluid moved from the aeration processing unit 2a A shower 15 and a defoaming water tank 25 or a pump 20 that is sent to the aging tank 2 described later, and a drain pipe 21 that discharges sediment in the lower part of the aeration treatment tank 1 to the outside of the aeration treatment tank 1 are disposed. A heating pipe 23 is disposed on the outer periphery of the bottom of the box 10, and the exposed outer surface of the box 10 is covered with a heat insulating material 24. Pipes 13g and 14g, which will be described later, of the output devices 13 and 14 are provided with a flow rate sensor 202, and a pH sensor 201, a temperature sensor 203, and a level sensor 204 suspended from the top of the box 10 are provided inside the box 10. ing.

  In the excrement fluid diffusing unit 12, a diffusion plate 12c is suspended from the upper part of the aeration processing unit 1a by a shaft 12e, and this shaft 12e is attached to a motor 12d. As shown well in FIGS. 1 and 2, the pipe 12 a led out from the box 10 to the outside of the box 10 in the vicinity of the manure fluid diffusion part 12 is connected to the circulation part 1 b of the aeration treatment tank 1 through the valve 114. It is connected to the pipe 19b of the pump 19 disposed in the. As a result, the excrement fluid guided from the aeration processing unit 1a to the circulation unit 1b in the aeration processing tank 1 is guided again to the aeration processing unit 1a from the excrement fluid diffusion unit 12, and continuously circulates inside the aeration processing tank 1. A typical aeration process is performed. The pipe 12a is also connected to the aging tank 2, the pre-storage tank 3, and the drain tank 5 through valves 111, 112, 114, 140, and 141.

  The lead-in pipe 12b is connected to the pipe 12a described above, and a diffusing plate 12c in which the excrement fluid sent from the pipe 12a is suspended downward from a plurality of holes provided in the lower end of the excrement fluid diffusion part 12. Is released towards The diffusion plate 12c shown here consists of two large and small disks. When the diffusion plate 12c is rotated by the motor 12d, the excrement fluid colliding with the diffusion plate 12c is blown in the circumferential direction by the centrifugal force of the diffusion plate 12c, and aeration processing is performed. It is effectively diffused into the part 1a.

  In the present embodiment shown in FIG. 2, the lead-in pipe 12c is provided in the excrement fluid diffusion part 12, but the lead-in pipe 12c may not be provided. You may make it drop the manure fluid sent from the pipe 12a directly into the diffusion plate 12c from the upper part of the aeration processing part 1a. Further, a guide or the like may be provided so that the excrement fluid collides with the diffusion plate 12c with certainty.

  As shown in FIG. 2, the shower 15 is connected to the pump 20 via a valve 115, and outputs manure fluid delivered from the pump 20 to the inside of the aeration processing unit 1a and the circulation unit 1b from a plurality of nozzles 15a. As a result, the excrement fluid at the bottom of the aeration treatment tank 1 is output from above the aeration treatment tank 1 from the shower 15, thereby increasing the contact area with air and effectively performing the aeration treatment. The shower 15 has a pipe 15b connected to the defoaming water tank 25 through a valve 116, and the manure fluid in the aeration treatment tank 1 is selectively output to the defoaming water tank 25 through this pipe 15b. The

  As shown in FIG. 2, the aerator 16 is disposed near the center below the aeration processing unit 1 a, and an air introduction pipe 16 a is led out from the aerator 16 to the outside of the box 10. The aerator 16 mixes the manure fluid in the vicinity of the aerator 16 and the air taken in from the air introduction pipe 16a in accordance with an instruction from the controller 7, and releases the mixture into the manure fluid.

  The air supply device 17 has a cylindrical shape, and an air supply port 17a is formed at an end disposed near the lower part of the aeration processing unit 1a, and air is discharged from the air supply port 17a into the manure fluid. The One end of the air supply device 17 is led out of the box 10 and connected to an air supply port 105 of the control device 8 to be described later. The air supply port 105 is circled in FIGS. 1 and 2. Air indicated by reference numeral 5 is supplied. As described above, by providing the air supply device 17 in addition to the aerator 16 in the aeration treatment tank 1, air is sufficiently supplied to the excrement fluid in the aeration treatment unit 1a, and the excrement fluid is effectively aerated. The

  As shown in FIGS. 1 and 2, the pump 19 including the pump unit 19 a and the pipe 19 b is connected to the pipe 12 a of the excrement fluid diffusing unit 12 via the valve 114 and is sent from the pump 19. The excrement fluid to be discharged is discharged from the excrement fluid diffusion unit 12 to the aeration processing unit 1a. As a result, the excreta fluid circulates through the aeration processing unit 1a and the circulation unit 1b and is continuously subjected to the aeration process.

  The pump 19 is connected to the pipe 53 of the aging tank 2 via valves 114, 112, and 141, and sends manure fluid in the aeration treatment tank 1 to the aging tank 2. As a result, the excreta fluid is sent from the aeration tank 1 to the second aeration tank 2 and subjected to the aeration process step by step.

  As shown in FIGS. 1 and 2, the pump 20 composed of the pump unit 20a and the pipe 20b has the pipe 20b connected to the shower 15 via the valve 115, and the excrement fluid delivered from the pump 20 is The water is discharged from the shower 15 to the defoaming water tank 25 through the aeration processing unit 1 a, the circulation unit 1 b and the valve 116. As a result, the excreta fluid circulates through the aeration processing unit 1a and the circulation unit 1b and is continuously subjected to the aeration process.

  The pump 20 can select whether or not to send manure fluid to the antifoam water tank 25 by a valve 116 provided in the shower 15. The pipe 20 b is connected to the pipe 53 of the aging tank 2 via the valve 117, and sends manure fluid sent from the pump 20 to the aging tank 2. As a result, the excreta fluid is sent from the aeration tank 1 to the aging tank 2 and subjected to the aeration process step by step.

  The pump 19b is disposed above the circulation unit 1b from the pump 20b. As described above, the pumps 19b and 20b are arranged at different heights in the circulation unit 1b, whereby feces and urine fluids having different degrees of aeration processing can be selectively circulated inside the aeration processing tank.

  As shown in FIGS. 1 and 2, the drain pipe 21 is led out of the box 10 from below the circulating portion 1 b and connected to the drain tank 5 via a valve 135 and a pump 98. The sediment deposited on the bottom of the circulating unit 1b is sent to the drain tank 5 through the drain pipe 21. Thereby, the sediment at the bottom of the aeration treatment tank 1 is sent out to the outside of the aeration treatment tank 1, and the aeration treatment tank 1 performs the aeration treatment only on the excreta fluid, and as a result, the efficiency of the aeration treatment is improved.

  As shown in FIGS. 1 and 2, the heating pipe 23 is disposed on the bottom of the box 10 along the side wall of the bottom of the box 10, and both ends of the heating pipe 23 and the fluid output port 106 and the fluid of the control device 8 described later are provided. It is connected to the input port 107. The heated fluid output from the fluid output port 106 indicated by a circled symbol 6 in FIGS. 1 and 2 passes through the inside of the heating pipe 23 and passes through the heating pipe 23 indicated by a circled symbol 7 in FIGS. 1 and 2. The fluid that has flown is output to the fluid input port 107. Thus, the heating pipe 23 heats the inside of the aeration treatment tank 1 by circulating the heated fluid sent from the control device 8 inside the heating pipe 23.

  The output devices 13 and 14 are provided with cylindrical envelopes 13b and 14b above the cylindrical guide portions 13a and 14a having tapered ends whose upper ends are narrowed toward the opening, and the envelopes 13b and 14b include Defoaming members 13c and 14c for defoaming bubbles generated by the aeration process are provided. Outlet portions 13d and 14d and gas output portions 13e and 14e are provided on the side walls of the envelopes 13b and 14b, and are connected to pipes 13g and 14g, respectively. Gas exhaust ports 13f and 14f are provided at one end of the pipes 13g and 14g, and the other end is connected to a defoaming water tank 36 of the second aeration treatment tank 2 described later. At least one gas exhaust pipe 13h, 14h is provided above the envelopes 13b, 14b.

  A large amount of bubbles generated by aeration processing in the aeration processing unit 1a are guided to the cylindrical guide portions 13a and 14a, and the bubbles rising in the cylindrical guide portions 13a and 14a are conical defoaming members 13c. , 14c liquefied and liquefied feces and urine fluid (antifoam water) is dropped onto the outlet portions 13d and 14d, and sent out from the pipes 13g and 14g to the antifoam water tank 25 described later.

The gas exhaust ports 13f and 14f have a cylindrical shape and are connected to the upper ends of the pipes 13g and 14g. By providing the gas exhaust ports 13f and 14f, the excreta fluid liquefied by the defoaming portions 13c and 14c is efficiently output from the pipes 13g and 14g.
Each component of the output devices 13 and 14 mentioned above is comprised from a well-known material.

  As shown well in FIG. 1 and FIG. 2, defoamed manure fluid (foamed water) sent out from the pipes 13 g and 14 g of the output devices 13 and 14 of the aeration treatment tank 1 that realizes the defoaming section is known It is led to a defoaming water tank 25 consisting of the tanks. The excrement fluid guided to the defoaming water tank 25 is discharged from the pipe 25a provided at one end to the bottom of the defoaming water tank 25 or the pipe 25c connected to the pump 25b to the bottom of the aeration processing unit 1a. The Thereby, the excreta fluid circulates inside the aeration processing unit 1a without hindering the promotion of the aeration processing performed inside the aeration processing tank 1, and is continuously subjected to the aeration processing.

  Note that one end of each of the pipe 25 a and the pipe 25 c may be connected to the aerator 16. With such a configuration, the excreta fluid delivered from the pipe 25a and the pipe 25c is mixed with air by the aerator 16, and the aeration process is performed more efficiently.

  Further, the defoamed water stored in the defoamed water tank 25 is supplied from the pipe 25d connected to the side wall of the defoamed water tank 25 to the valves 142, 143 and the pipe 151, as indicated by a circled symbol 4 in FIG. It is sent to the aging tank 2 or the previous storage tank 3 through the feedback pipe 152.

  A gas exhaust pipe 25e is provided above the defoaming water tank 25, and the gas generated in the defoaming water tank 25 by the gas exhaust pipe 25e is released to the outside of the defoaming water tank 25.

  The pH sensor 201 is a known pH sensor and is suspended in the excrement fluid from the upper part of the box 10 as shown in FIG. 2, measures the pH value of the excrement fluid, and outputs the measured value to the controller 7. . In addition, if the position where the pH sensor 201 is disposed is a place where the pH value of the excreta fluid can be measured, it can be freely changed to any position inside the aeration treatment tank 1 as appropriate.

  The flow sensor 202 includes a known flow meter such as an electromagnetic flow meter, and is attached to the pipes 13g and 14g of the output devices 13 and 14 as shown in FIGS. 1 and 2, and is output from the output devices 13 and 14. The flow rate of the defoaming water is measured, and the measured value is output to the controller 7. In addition, if the position which arrange | positions the flow sensor 202 is a place which can measure the flow volume of the defoaming water output from the output devices 13 and 14, it can change freely at any position of the aeration processing tank 1 suitably. Can do.

  The temperature sensor 203 includes a known thermometer, and is suspended in the excrement fluid from the upper part of the box 10 as shown in FIG. 2. The temperature sensor 203 measures the temperature of the excrement fluid and outputs the measured value to the controller 7. In addition, if the position where the temperature sensor 203 is disposed is a place where the temperature of the excreta fluid in the aeration treatment tank 1 can be measured, it can be freely changed to any position in the aeration treatment tank 1 as appropriate.

  The level sensor 204 is a known level sensor, and is suspended in the excrement fluid from the upper part of the box 10 as shown in FIG. 2. The level sensor 204 measures the amount of excrement in the box 10, and the measured value is the controller 7. Output to. In addition, if the position where the level sensor 204 is disposed is a place where the amount of excrement fluid in the aeration treatment tank 1 can be measured, it can be freely changed as appropriate.

  Each of the above-described parts is made of a known material.

<Configuration of aging tank>
Next, the aging tank 2 will be described. As shown in FIG. 3, the box 51 is divided into an aging part 3 a and an aging part 3 b by a partition wall 52. A pipe 53 is disposed in the upper part of the aging unit 3a, and the pipe 25d of the defoaming water tank 25 of the aeration tank 1 is connected to the lower side wall of the aging unit 3a. Pumps 54 and 55 are installed at the bottoms of the aging unit 3a and the aging unit 3b, and showers 56 and 57 connected to the pumps 54 and 55 are disposed above the inside of the aging units 3a and 3b. The pipe 58 connected to the pump 54 is led out inside the aging unit 3b, and the pipe 59 connected to the pump 55 is led out to the aging tank 2. Further, in both the aging units 3a and 3b, an air supply device 60 is disposed below the inside, and a heating pipe 61 is provided at the bottom. In the aging units 3a and 3b, pH sensors 221 and 222, temperature sensors 223 and 224, and level sensors 225 and 226 suspended from the upper part of the box 51 in the excrement fluid are disposed. Further, the outside of the box 51 is covered with a heat insulating material 62.

  A pipe 25d is connected to the lower side wall of the aging part 3a of the box 51. From the pipe 25d, the defoamed water tank 25 indicated by the circled reference numeral 4 in FIGS. 2 and 3 is defoamed. Manure fluid (foaming water) is sent out.

  One end of the pipe 53 is disposed above the aging unit 3a, and the other end is led out of the box 51 and connected to the pipe 19b of the pump 19 and the pipe 20b of the pump 20 of the aeration treatment tank 1. As described above, the excrement fluid (aeration treatment liquid) subjected to the aeration process sent from the pumps 19 and 20 of the aeration treatment tank 1 is sent to the aging tank 3 a via the pipe 53.

  As shown in FIG. 1 and FIG. 3, the pump 54 composed of the pump unit 54 a and the pipe 54 b has the pipe 54 b connected to the shower 56 via the valve 122, and an aeration treatment liquid sent from the pump 54. Is discharged from the shower 56. As a result, the aeration treatment liquid is stored inside the aging unit 3a in a state of circulating through the aging unit 3a and having predetermined characteristics. The pipe 54 b is connected to the pipe 58 via the valve 123, and the aeration treatment liquid stored in the aging unit 3 a is sent to the aging unit 3 b separated by the partition wall 52 by the pump 54.

  The pump 55 has the same configuration as the above-described pump 54, the pipe 55b is connected to the shower 57 via the valve 124, and the aeration treatment liquid sent to the aging unit 3b by the pipe 58 is the same as the pump 55. The aging part 3b is circulated by the shower 57 and stored in the aging part 3b in a state having predetermined characteristics. The pipe 55b is connected to a pipe 85 connected to the front storage tank 3 via valves 130 and 131 and a pipe 91 derived from the external storage tank 4 via a valve 132. As a result, the aeration treatment liquid stored in the aging unit 3 b is sent to the pre-storage tank 3 or the external storage tank 4.

  The air supply device 60 has a plurality of air supply ports 60 a formed on the surface thereof, and is disposed below the box 51. One end of the air supply device 60 is led out of the box body 61 and connected to an air supply port 105 of the control device 8 to be described later. The indicated air is supplied. When the air supply device 60 supplies air into the aeration treatment liquid, the aeration treatment liquid is stored in the aging tank 2 while maintaining predetermined characteristics.

  Both ends of the heating pipe 61 stretched around the bottom of the box 51 are connected to a fluid output port 106 and a fluid input port 107 of the control device 8 described later. The heated fluid output from the fluid output port 106 indicated by a circled symbol 6 in FIGS. 1 and 3 passes through the inside of the heating pipe 61 and passes through the heating pipe 61 indicated by a circled symbol 7 in FIGS. 1 and 3. The fluid that has passed through is output to the fluid input port 107. Thus, the heating pipe 61 heats the inside of the aging tank 2 by circulating the heated fluid sent from the control device 8.

  PH sensors 221, 222, temperature sensors 223, 224, and level sensors 225, 226 are arranged in each of the aging units 3a, 3b, and the values measured by each are output to the controller 7. The positions where the pH sensors 221, 222, the temperature sensors 223, 224, and the level sensors 225, 226 are disposed can be freely set as long as the pH value, temperature, and amount of the urine fluid in the aging tank 2 can be measured. Can be set to

  Each of the above-described parts is made of a known material.

<Configuration of previous storage tank>
Next, the front storage tank 3 will be described. As shown in FIG. 4, the box 81 is partitioned by a partition wall 82 so that the excrement fluid in the front reservoirs 5 a and 5 b can move through the respective front reservoirs. An inlet 83 is installed at the top of the front reservoir 5a, a mixer 84 is installed at the bottom of the front reservoir 5a, a pipe 85 is disposed above the front reservoir 5b, and a pump 86 is disposed at the bottom of the front reservoir 5b. A heating pipe 87 is disposed at the bottom of the front reservoirs 5a and 5b. Inside the box 81, a pH sensor 241, a temperature sensor 242, and a level sensor 243 are disposed. Further, the outside of the box 81 is covered with a heat insulating material 88. Furthermore, a circulation pump 89 is disposed at the bottom of the front reservoir 5a.

  The partition wall 82 has a plate shape, and partitions the box 81 into the front storage portions 5a and 5b. The partition wall 82 has a plurality of holes so that the excrement fluid can move between the front reservoirs 5a and 5b.

  The input port 83 is formed in the upper part of the front storage part 5a, and the manure fluid separated from the liquid is supplied to the front storage tank 3.

  The mixer 84 is installed in the pre-reservoir 5a and agitates the manure fluid in the pre-reservoir 3.

  One end of the pipe 85 is connected to the upper part of the front reservoir 5b, the other end is led out of the box 81 as shown in FIG. 1, and the pipe 55b of the pump 55 of the aging tank 2 is connected via valves 130 and 131. These are connected to the pipe 92b of the pump 92 of the external storage tank 4 to be described later via valves 131 and 133. Thereby, the aeration processing liquid stored in the aging part 3b of the aging tank 2 is selectively sent to the pre-storage tank 3. Further, the aeration treatment liquid stored in the external storage tank 4 is also selectively sent to the front storage tank 3.

  The pump 86 includes a pump portion 86a and a pipe 86b. One end of the pipe 86b is connected to the pump portion 86a, and the other end is led out of the box 81 as shown in FIG. And connected to the pipe 12a of the aeration treatment tank 1. Thereby, the excreta fluid put into the front storage tank 3 is sent to the aeration treatment tank 1.

  The heating pipe 87 has the same configuration as the heating pipes 61 and 75 described above. The feces and urine fluid in the front storage tank 3 can be heated by the heating pipe 87.

  The circulation pump 89 includes a pump part 89a and a pipe 89b. The pump unit 89b is disposed below the liquid level of the fecal fluid in the front reservoir 5a, for example, at the bottom of the front reservoir 5a, and sucks the manure fluid inside the front reservoir 5a and sends it out to the pipe 89b. The pipe 89b has one end connected to the pump part 89a and the other end disposed above the front storage part 5a. Thereby, the excrement fluid stored in the front storage part 5a is circulated in the front storage part 5a by being discharged toward the lower part of the front storage part 5a from the upper part of the front storage part 5a by the circulation pump 89. It is done.

  Inside the box 81, a pH sensor 241, a temperature sensor 242, and a level sensor 243 that are suspended from the upper part of the box 81 are arranged, and the values measured by each are output to the controller 7. The position where the pH sensor 241, the temperature sensor 242, and the level sensor 243 are disposed can be freely changed as long as it is a place where the pH value, temperature, and volume of the excrement fluid in the front storage tank 3 can be measured. it can.

  The partition wall 82, the inlet 83, the mixer 84, the pipe 85, the pump 86, the heating pipe 87, the heat insulating material 88, and the circulation pump 89 are made of known materials.

  A feedback pipe 152 having one end connected to the pipe 25d is connected to the front storage section 5b of the front storage tank 3. Thereby, the defoamed water stored in the defoamed water tank 25 of the aeration treatment tank 1 is sent to the front storage tank 3 via the pipe 25d, the valve 143, and the feedback pipe 152.

<Configuration of external storage tank>
Next, the external storage tank 4 will be described. The external storage tank 4 is composed of a known tank 90, and a pipe 91 is disposed in the upper part of the tank, and a pump 92 is disposed in the lower part of the inside.

  As shown in FIG. 1, the pipe 91 is connected to the pipe 55 b of the aging tank 2 through the valve 132 and stores the aeration treatment liquid sent from the pump 55.

  Further, the pump 92 including the pump portion 92a and the pipe 92b is connected to the shower 57 and the pipe 85 as shown in FIG. As a result, the aeration treatment liquid stored in the external storage tank 4 is selectively delivered to the aging tank 2 or the pre-storage tank 3.

<Drain tank configuration>
Next, the drain tank 5 will be described. As shown in FIG. 1, the drain tank 5 is composed of a known tank 95, and a pipe 96 connected to a pump 98 is disposed above the tank 95. A pump portion 97a and a pipe 97b are disposed above the tank 95. A pump 97 is provided. Each element constituting the drain tank 5 is made of a known material.

  The pipe 96 is connected to the drain pipe 21 of the aeration treatment tank 1 via a valve 135 and a pump 98, and sends the precipitates retained at the bottom of the aeration treatment tank 1 to the tank 97 by the pump 98.

  The pipe 97 b is led out of the drain tank 5 and is connected to the pipe 12 a of the aeration treatment tank 1 through the valve 111. Thereby, the fluid component of the supernatant of the sediment stored in the tank 95 is sent to the aeration treatment tank 1 and subjected to the aeration process.

<Configuration of solid-liquid separator>
Next, the solid-liquid separator 6 will be described. As shown in FIGS. 1 and 5, the solid-liquid separator 6 includes a screw press type solid-liquid separator, a base 301 having a substantially rectangular shape in plan view, and a separator 302 disposed on the base 301. A receiving hopper 303 disposed on the separation unit 302, a pressurization unit 304 provided on a solid matter discharge port side to be described later of the separation unit 302, and a side opposite to the pressurization unit 304 of the separation unit 302 And a motor 305 provided in the motor.

  The separation unit 302 includes a cylindrical cover 302a, a screw shaft 302b provided inside the cover 302a so that an axis thereof coincides with an axis of the cover 302a on one end side of the cover 302a, and a screw shaft on the other end side of the cover 302a. 302b and a screen 302c provided adjacent to the screen 302b. Here, one end of the screw shaft 302 b is connected to the motor 305, and the shaft portion of the other end is supported by the pressurizing unit 304. The screen 302c is made of cylindrical punching metal, and circular holes are arranged in a staggered manner at a predetermined interval. The cover 302a and the base 301 located below the screen 302c are provided with a manure fluid discharge port (not shown) for discharging manure fluid.

  The receiving hopper 303 has a shape of a hollow substantially truncated cone or truncated pyramid that is open from vertically downward to vertically upward. The bottom portion of the receiving hopper 303 is connected to the cover 302 a at a position corresponding to the upper portion of the screw shaft 302 b of the separating portion 302.

  The pressurizing unit 304 includes a cover 304a having a box shape, a pressure adjusting plate 304b disposed on the separating unit 302 side in the cover 304, and a side opposite to the separating unit 302 side of the pressure adjusting plate 304b. A support portion 304c attached to the surface and a spring 304d that presses the support portion 304c toward the separating portion 302 are configured. The surface of the cover 304a on the separation unit 302 side is open, and a pressure adjusting plate 304b is disposed so as to close the opening. The bottom of the cover 304a and the base 301 corresponding to this position are provided with a solid material discharge port (not shown) for discharging the solid material.

  In the solid-liquid separator 6, when excrement such as livestock is input to the receiving hopper 303, the excrement reaches the screw shaft 302. When the screw shaft 302b is rotated by the motor 305, the excrement is pressed toward the screen 302c while being agitated by the screw shaft 302b, and separated into solid matter and excrement fluid while passing through the screen 302c. The separated excreta fluid is stored in the liquid storage tank 6a from the excrement fluid discharge port. The excrement that passes through the screen 302c and reaches the pressurizing unit 304 is pressed toward the separating unit 302 by the pressure adjusting plate 304b. Thereby, the excrement is pressed so as to be sandwiched by the pressing force of the pressure adjusting plate 304b and the screw shaft 302b, and the liquid component is removed. The solid material from which the liquid component has been removed is discharged from the solid material discharge port, and is transported to the compost unit 6b by a transport device such as a belt conveyor.

  The excreta fluid stored in the liquid storage tank 6 a is sent out from the inlet 83 of the front storage tank 3 into the front storage tank 3 by the pump 310 and the pipe 311. The solid matter accumulated in the compost unit 6b is used as compost in farmland and pasture.

<Configuration of controller>
Next, the controller 7 will be described. As shown in FIG. 1, the controller 7 is electrically connected to the motors 12d, the aerator 16, the mixer 18, the pumps 19, 20, 54, 55, 86, 92, 97, the circulation pump 89, and the valves, and has a pH. Each control is performed based on the values received from the sensors 201, 211, 222, the flow rate sensor 202, and the temperature sensors 203, 223, 224, 242.
In addition, the controller 7 is electrically connected to the compressor 101, the tank 102, and the boiler 103 of the control device 8, and controls each of them.
The controller 7 and each valve are made of known materials.

  The configuration of the controller 7 is shown in FIG. The controller 7 is electrically connected to a control unit 8a that controls the operation of the entire controller 7 and a memory 8b that stores programs and data relating to the operation of the control unit 8a in advance and stores each data received by the I / F 8c. I / F 8c that receives signals from pH sensors, flow sensors, temperature sensors, and level sensors, and receives operation inputs from operators, and sends and receives signals to and from motors, aerators, mixers, pumps, valves, etc. The operation unit 8d that outputs to the control unit 8a and the display unit 8e that outputs the operating state of the excrement disposal apparatus and the like.

  Based on a program stored in the memory 8b in advance, the control unit 8a refers to data received by the I / F 8c from each sensor such as a pH sensor, a flow sensor, a temperature sensor, and a level sensor, and the motor, aerator, air The entire manure processing apparatus is controlled by transmitting and receiving signals to and from a supply device, a mixer, a pump, a valve, and the like.

  The memory 8b stores in advance data such as a program for the control unit 8a to control the entire manure processing apparatus and reference values of each sensor, and data received from a pH sensor, a flow sensor, a temperature sensor, and a level sensor, A history such as the operating status of the excrement disposal apparatus is stored.

  The I / F 8c transmits and receives signals to and from electrically connected motors, aerators, mixers, pumps, valves, and the like based on instructions from the control unit 8a, and pH sensors, flow sensors, temperature sensors, and level sensors The data such as the measured values measured by the respective sensors are received.

  The operation unit 8d includes a keyboard, a mouse, a touch panel, buttons, and the like, detects an operation input by the operator, and outputs it to the control unit 8a.

  The display unit 8e includes a screen display device such as a CRT display or a liquid crystal display, and displays the operating status of the excrement processing apparatus, information on each processing tank, and the like.

  By having the configuration as described above, the controller 7 can control all the operations related to the aeration process of excrement fluid performed in the aeration processing apparatus according to the present embodiment.

<Configuration of control device>
Next, the control device 8 will be described. As shown in FIG. 1, the control device 8 includes a compressor 101, a tank 102, a boiler 103, a control panel 104, an air supply port 105, a fluid output port 106, and a fluid input port 107. The control device 8 performs the operation of the manure processing apparatus according to the present embodiment and the control associated therewith based on the instruction of the controller 7. Here, the compressor 101, the tank 102, and the boiler 103 are made of known materials. The boiler 103 may be configured by an electric water heater.

  The air supply port 105 is connected to the air supply devices 17 and 60, and supplies air indicated by a circled symbol 5 in FIGS. 1 to 4 from the compressor 101 based on an instruction from the controller 7.

  The fluid output port 106 is connected to one end of the heating pipes 23, 61, 87, and heated water or antifreeze liquid indicated by a circled symbol 6 in FIGS. 1 to 4 by the boiler 103 based on instructions from the controller 7. And so on.

  The fluid input port 107 is connected to one end of the heating pipes 23, 61, 87, and the fluid output port 106 indicated by a circled symbol 7 in FIGS. Collect fluids such as water and antifreeze.

[Method for controlling the amount of manure fluid in the pre-reservoir]
Next, a method for controlling the amount of manure fluid in the pre-reservoir 3 of the manure processing apparatus according to this embodiment will be described with reference to FIGS. 1 and 4.

  When the level sensor 243 detects that the liquid level of the excrement fluid in the front storage tank 3 is lower than a predetermined height and the amount of the excrement fluid in the front storage tank 3 is less than a predetermined value. The controller 7 closes the valve 142 and opens the valve 143. Then, the excreta fluid (antifoam water) stored in the antifoam water tank 25 is sent to the front storage section 5b of the prestorage tank 3 through the pipe 25d and the feedback pipe 152. Thereby, for example, even when the amount of excrement fluid put into the pre-storage tank 3 is small, the excrement fluid can always be secured, and it is possible to prevent the oxidative fermentation treatment of the excrement fluid inside the pre-storage tank 3 from being delayed. As a result, it is possible to prevent the aeration process in the aeration treatment tank 1, the aging tank 2 and the aging tank 2 from being delayed, and the aeration process can be performed efficiently.

[Control method of aeration tank]
Next, a method for controlling the aeration treatment tank 1 of the excrement disposal apparatus according to the present embodiment will be described with reference to FIG. 1 and FIG.

  The excreta fluid introduced into the pre-storage tank 3 is sent to the aeration tank 1. In the aeration treatment tank 1, an aeration process is performed as shown in the flowchart of FIG.

  First, the controller 7 detects whether or not there is a predetermined amount of manure fluid in the aeration treatment tank 1 by the level sensor 204 (step S1). When the excrement fluid in the aeration treatment tank 1 is less than the predetermined amount (step S1: NO), the controller 7 drives the pump 86 of the pre-reservoir 3 and turns the valves 111, 112, 114, 140, 141 on. By adjusting, the excrement fluid in the front storage tank 3 is supplied to the aeration treatment tank 1 (step S7).

  When the excreta fluid in the aeration treatment tank 1 satisfies a predetermined amount (step S1: YES), the controller 7 drives the aerator 16 and the air supply device 17 that realize the air supply means (step S2), and excrement Aeration treatment is applied to the fluid.

When air is supplied from the air supply means into the excrement fluid, oxidative fermentation of microorganisms in the excrement fluid is promoted, and a large amount of foam is generated inside the aeration treatment tank. If such aeration treatment is performed excessively, the inside of the aeration treatment tank becomes high pressure due to the air supplied from the air supply means and the gas generated by oxidative fermentation of microorganisms in the excrement fluid, and in some cases the aeration treatment There is a risk that the tank may burst, which is dangerous. On the other hand, if air is not sufficiently supplied into the excrement fluid by the air supply means, the oxidation fermentation process of microorganisms in the excrement fluid is not promoted, and the aeration process cannot be sufficiently performed on the excrement fluid. Therefore, the control unit 8a determines that the flow rate (Q) of the defoamed water output from the output devices 13 and 14 is within a predetermined range (Q ₀₂ <Q <Q ₀₁ ) and the pH of the excreta fluid in the aeration treatment tank 1. Each part of the aeration treatment tank 1 is controlled so that the aeration process is continued until the value exceeds a predetermined value (S1).

That is, when the flow rate of the defoamed water output from the output devices 13 and 14 exceeds Q ₀₁ (the upper limit value of the flow rate) (step S3: NO), the control unit 8a is excessive in the aeration treatment tank 1. Since the aeration process is being performed, the aerator 16 and the air supply device 17 are stopped (step S8) to prevent the internal pressure of the aeration process tank 1 from rising further.

In addition, when the flow rate of the defoamed water output from the output devices 13 and 14 is lower than Q ₀₂ (the lower limit value of the flow rate) (step S4: NO), the controller 7 performs oxidation fermentation treatment of microorganisms in the excrement fluid. Since it is not performed sufficiently, when the aerator 16 and the air supply device 17 are stopped, the aerator 16 and the air supply device 17 are driven, and when the aerator 16 and the air supply device 17 are driven. The aerator 16 and the air supply device 17 are continuously driven (step S9). Reference values such as Q ₀₁ , Q ₀₂ , S1 are recorded in the memory 8b.

  The control unit 8a refers to the pH sensor 201 while the flow rate of the defoamed water output from the output devices 13 and 14 is within a predetermined range (step S3, 4: YES). Aeration processing is performed until the pH value of the fluid reaches a predetermined value (step S5: NO). When the pH value of the excreta fluid in the aeration treatment tank 1 reaches a predetermined value (step S5: YES), the control unit 8a drives the pump 20 and adjusts the valves 115 and 117 to thereby determine the predetermined value. The excrement fluid in the aeration treatment tank 1 that has been subjected to the aeration treatment until the pH value becomes a predetermined amount is sent to the aging tank 2 by a predetermined amount.

  In addition, after confirming that the pH sensor 201 has measured that the pH value of the excreta fluid in the aeration treatment tank 1 has reached a predetermined value for a predetermined number of times or for a predetermined time, the control unit 8a enters the aging tank 2. Manure fluid can also be delivered.

  Moreover, in this Embodiment, the parameter used for controlling the aeration process in an aeration processing tank can also use a BOD value instead of the pH value mentioned above. This BOD (Biochemical Oxygen Demand / Biochemical Oxygen Demand) value represents the amount of oxygen consumed because organic pollutants in water are biochemically oxidized by aerobic microorganisms in water. In this case, a sensor for detecting the BOD value is provided inside the aeration treatment tank, and the aerator or What is necessary is just to control air supply means, such as an air supply apparatus, and heating apparatuses, such as a heating pipe. As for a specific method, the predetermined pH value in step S5 in FIG. 7 may be replaced with a predetermined BOD value, and thus detailed description thereof is omitted.

  In the present embodiment, as a parameter used for controlling the aeration process in the aeration tank, a COD value can be used instead of the pH value described above. This COD (Chemical Oxygen Demand / Chemical Oxygen Demand) value represents the amount of oxygen consumed when organic pollutants are mainly treated with oxidizing substances in water. In this case, a sensor for detecting the COD value is provided inside the aeration treatment tank, and an aerator or the like is provided so that the flow rate of the defoamed water output from the output device is within a predetermined range until the COD value reaches a predetermined value. What is necessary is just to control air supply means, such as an air supply apparatus, and heating apparatuses, such as a heating pipe. As for a specific method, the predetermined pH value in step S5 in FIG. 7 may be replaced with a predetermined COD value, and thus detailed description thereof is omitted.

  Moreover, in this Embodiment, the electrical conductivity can also be used for the parameter used for controlling the aeration process in an aeration processing tank instead of the pH value mentioned above. This electrical conductivity represents the turbidity of impurities in the excreta fluid. In this case, a sensor for detecting the electrical conductivity of the excreta fluid is provided inside the aeration treatment tank, and the flow rate of the defoamed water output from the output device is within a predetermined range until the electrical conductivity reaches a predetermined value. Thus, the air supply means such as the aerator and the air supply device and the heating device such as the heating pipe may be controlled. As for a specific method, the predetermined pH value in step S5 in FIG. 7 may be replaced with a predetermined electric conductivity, and thus detailed description thereof is omitted.

[Other control methods for aeration tank]
In the present embodiment, the value used for controlling the aeration process in the aeration process tank is at least one of the above-described flow rate, the temperature of the excrement fluid in the aeration process tank, and the pressure in the aeration process tank. Can be used in combination. In this case, an air supply means such as an aerator and an air supply device and a heating device such as a heating pipe may be controlled so that the temperature and pressure inside the aeration treatment tank are within a predetermined range. The configuration of this control method is shown in FIG.

  In addition to the flow rate sensor 202, the aeration treatment tank 1 is provided with a pressure sensor that measures the pressure inside the aeration treatment tank 1 and a temperature sensor 203 that measures the temperature of manure fluid inside the aeration treatment tank 1. These flow sensor 202, pressure sensor and temperature sensor 203 are electrically connected to the controller 7, and values measured by the sensors are output to the controller 7. The controller 7 provides a predetermined range for the values measured by the flow sensor, the pressure sensor, and the temperature sensor, and the control device 8 and the controller 8 so that the values measured from the flow sensor 202, the pressure sensor, and the temperature sensor 203 fall within this range. The aerator 16 and the like are controlled, and the aeration process is performed until the excreta fluid has a predetermined parameter value. The temperature sensor 203 and the pressure sensor can be provided at any position in the aeration treatment tank 1 as long as the temperature of manure fluid in the aeration treatment tank or the temperature in the aeration treatment tank can be measured.

  The controller 7 sets an upper limit value and a lower limit value to values measured by the pressure sensor so that the aeration treatment is performed within a predetermined range of the pressure inside the aeration treatment tank 1 until the parameter value of the excrement fluid reaches a predetermined value. When the pressure exceeds the upper limit, the air supply means such as the aerator 16 is stopped, and when the pressure inside the aeration treatment tank 1 falls below the lower limit, the air supply means such as the aerator 16 is driven.

  Further, the controller 7 is a value measured by the temperature sensor 203 so that the aeration process is performed within the predetermined range of the temperature of the excrement fluid in the aeration treatment tank 1 until the parameter value of the excrement fluid reaches a predetermined value. When the temperature exceeds the upper limit value, the air supply means such as the aerator 16 and the heating means are stopped. When the temperature of the excreta fluid in the aeration treatment tank 1 falls below the lower limit value, the aerator The air supply means such as 16 and a heating device such as a heating pipe are driven.

  By combining the above-described control method with the control method using the flow sensor with reference to FIG. 7, the manure processing apparatus according to the present embodiment performs stable aeration processing on the manure fluid and has predetermined characteristics. It is possible to obtain an aeration-treated excrement fluid having

  The control unit 8a is recorded in the memory 8b with measured values obtained by parameter value measuring units such as a pH sensor, a flow sensor, a temperature sensor, a pressure sensor, a BOD value sensor, a COD value sensor, and an electrical conductivity sensor. It is also possible to calculate a difference by comparing with a reference value, and to control the aeration tank based on this difference. The controller 8a can smoothly control the aeration processing in the aeration processing tank by adjusting the amount of air supplied by the air supply means according to the degree of difference.

  The memory 8b has a plurality of reference values corresponding to the measurement values obtained by the parameter value measurement unit such as a pH sensor, a flow sensor, a temperature sensor, a pressure sensor, a BOD value sensor, a COD value sensor, and an electrical conductivity sensor. The control unit 8a records the measured values obtained by the parameter value measuring unit such as a pH sensor, a flow rate sensor, a temperature sensor, a pressure sensor, a BOD value sensor, a COD value sensor, and an electric conductivity sensor. It is also possible to correct the value by multiplication or the like and control based on the corrected value. As a result, the manure processing apparatus according to the present embodiment adjusts the amount of air supplied by the air supply means and the driving time in accordance with the state of the manure fluid in the aeration treatment tank, and can be used in any state. The aeration process can be effectively performed on the excreta fluid.

  In addition, the reference value recorded in the memory 8b is different from the time point obtained by the parameter value measurement unit such as a pH sensor, a flow sensor, a temperature sensor, a pressure sensor, a BOD value sensor, a COD value sensor, and an electrical conductivity sensor. Correction can be made based on the average value of each of the plurality of measured values. The measurement value measured by the parameter value measurement unit depends on the characteristics of the manure fluid and the state of the aeration treatment in the aeration treatment tank, depending on the time of measurement, that is, the state of the manure fluid near the parameter value measurement unit sensor at the time of measurement May be different. Therefore, the control unit 8a calculates an average value of the measurement values at different time points, and controls the air supply unit and the like based on the average value. The memory 8b records measurement values at different times measured by the parameter value measurement unit, and the control unit 8a corrects the reference value based on the measurement values recorded at different times at the memory 8b. .

  Thereby, the excrement processing apparatus concerning this Embodiment can perform the stable aeration process to the whole excrement fluid.

  In addition, the shower 15 outputs the excrement fluid at the bottom of the aeration treatment tank 1 from above the liquid level of the aeration treatment tank 1 and brings it into contact with the air, thereby promoting oxidative fermentation of the excrement fluid. Similarly to the supply device 17, it can be driven as an air supply means. Thus, the excreta fluid is effectively aerated.

[Operation of manure processing equipment]
Next, operation | movement of the excrement processing apparatus concerning this Embodiment is demonstrated.

  The manure excreted by livestock is separated into a solid component and a liquid component by the solid-liquid separator 6, the liquid component (manure fluid) is stored in the liquid storage tank 6a, and the solid component (solid matter) is stored in the compost unit 6b. Be transported.

  The excreta fluid stored in the liquid storage tank 6a is input to the front storage section 5a inside the box 48 from the input port 83 provided in the upper part of the front storage tank 3 via the pump 310 and the pipe 311. The pH value of the excrement fluid charged into the pre-reservoir 3 is about 5.0 to 7.0. In the present embodiment, the operation is described using the pH value as the parameter value, but it goes without saying that the BOD value, the COD value, or the electrical conductivity can be applied instead of the pH value. Further, at least two of pH value, BOD value, COD value, and electric conductivity can be combined with the parameter value.

  Since the excrement fluid put into the pre-reservoir 5a has just been separated into solid and liquid, the residual solid matter is mixed in the excrement fluid and has high viscosity. Then, the mixer 84 and the circulation pump 89 provided in the front storage part 5a are driven. When the mixer 84 is driven, the liquid component and the residual solid-liquid matter in the excrement fluid are agitated to lower the viscosity of the excrement fluid, and the subsequent aeration process is effectively performed. Further, when the circulation pump 89 is driven, the excrement fluid at the bottom of the front storage part 5a is discharged from the upper part of the front storage part 5a, whereby the excrement fluid is agitated, so that the viscosity of the excrement fluid can be reduced.

  Further, since the partition wall 82 has the hole 82a, the excrement fluid passes through the hole 82a when being stirred by the mixer 84 and the circulation pump 89, and moves between the front storage part 5a and the front storage part 5b. To effectively stir.

  As described above, the excrement fluid introduced into the pre-storage tank 3 and stirred by the mixer 84 is sent to the excrement fluid diffusion part 12 of the aeration treatment tank 1 by the pump 86 via the pipe 86b and the pipe 12a. .

  The excrement fluid sent from the pre-reservoir 3 passes through the inside of the intake pipe 12b from the pipe 12a of the excrement fluid diffusion part 12, and is discharged toward the diffusion plate 12c from the lower end part of the intake pipe 12b. The excrement fluid colliding with the diffusion plate 12c rotated by the motor 12d is effectively diffused inside the aeration processing unit 1a. Thereby, it can prevent that the excrement fluid discharged | emitted in the inside of the aeration processing tank 1 accumulates in one place, and the whole excrement fluid is aerated effectively.

  The excrement fluid diffused into the aeration processing unit 1a by the excrement fluid diffusion unit 12 is stored in the bottom of the aeration processing unit 1a, and the aeration unit 16 performs the aeration process. At this time, air is supplementarily supplied into the excrement fluid by the air supply device 17, thereby improving the efficiency of the aeration process of the excrement fluid.

  When an aeration process is performed on the excrement fluid, the excrement fluid generates a large amount of bubbles. The bubbles pass through the cylindrical guide portions 13a and 14a of the output devices 13 and 14 to reach the defoaming portions 13c and 14c, and are defoamed by the defoaming portions 13c and 14c to become liquid, and the outlet portions 13d and 14d It passes through the pipes 13g and 14g and is output to the defoaming water tank 25.

  The excreta fluid sent from the pipes 13g and 14g to the defoaming water tank 25 is supplied from a pipe 25a provided at one end to the bottom of the defoaming water tank 25 or from a pipe 25c connected to the pump 25b. It is discharged to the bottom, and aeration processing is performed in the aeration processing unit 1a.

  Foam generated by the aeration process of the excrement fluid in the aeration processing unit 1a is output to the defoaming water tank 25 by the output devices 13 and 14. Thereby, the excreta fluid in the aeration processing unit 1a circulates in the aeration processing unit 1a and is continuously subjected to aeration processing. In addition, when more excrement fluid than the predetermined amount of the defoaming water tank 25 is sent to the defoaming water tank 25, the excessive excrement fluid is aged from the pipe 25d connected to the side wall of the antifoaming water tank 25. 2 and the previous storage tank 3.

  The excrement fluid accumulated at the bottom of the aeration processing unit 1a passes through the gap formed by the lower end of the partition wall 11 and the box 10 by the mixer 18 and enters the circulation unit 1b. The excrement fluid that has entered the circulation part 1b passes through the pipe 19b by the pump 19 through the pipe 12a, is sent again to the excrement fluid diffusion part 12, and is diffused inside the aeration processing part 1a. Thereby, the whole excrement fluid is effectively aerated. In addition, the excreta fluid that has entered the circulation unit 1b is sent to the shower 15 by the pump 20 via the pipe 20b, released into the aeration processing unit 1a, and circulated in the aeration processing tank 1 to be aerated. The

  The excreta fluid in the aeration tank 1 is aerated by the method described above until the pH value is about 7.5 to 8.5, and then is pumped through the pipe 20b and the pipe 53. It is sent to the aging part 3a of the aging tank 2. The manure fluid in the aeration treatment tank 1 may be sent to the aging tank 2 through the pipe 53 via the pipe 19b and the pipe 86b by the pump 19 as necessary.

  Deposits accumulated at the bottom of the aeration treatment unit 1a are sent to the drain tank 5 through the drain pipe 21. Further, the supernatant fluid component stored in the drain tank 5 is sent to the aeration treatment tank 1 by the pump 97 and subjected to the aeration treatment.

  When the aeration treatment is performed in the aeration treatment tank 1, heat is released when the microorganisms undergo oxidative fermentation, and the temperature of the excrement fluid at that time becomes about 50 to 53 ° C. When aeration treatment is performed under cold conditions, the excrement fluid can be effectively aerated by heating the inside of the aeration tank with the heating pipes 23 and 45 in order to promote oxidative fermentation of microorganisms.

  The aeration treatment liquid sent to the aging tank 2 via the pipe 20b and the pipe 53 by the pump 20 and the aeration treatment liquid sent from the defoaming water tank 25 by the pipes 25d and 151 are stored in the aging unit 3a. The aeration treatment liquid stored in the aging unit 3a is supplied with air by the air supply device 60 as necessary, so that the bacteria in the aeration treatment liquid are prevented from being killed and predetermined characteristics of the aeration treatment liquid, that is, predetermined It can be maintained in a state having a pH value of. Further, the aeration treatment liquid stored in the aging unit 3a can be circulated in the aging unit 3a by being discharged from the shower 56 to the aging unit 3a by the pump 54 as necessary. This also prevents the bacteria in the aeration treatment liquid from being killed and can maintain the predetermined characteristics of the aeration treatment liquid.

  The aeration treatment liquid stored in the aging unit 3 a for a predetermined period is sent to the aging unit 3 b by the pump 54. The aeration treatment liquid sent to the aging unit 3b is stored in the aging unit 3b in a state having predetermined characteristics similarly to the aging unit 3a, and finally the aeration processing liquid is in a state having predetermined characteristics. It is output from the ripening unit 4b to the external storage tank 4, and is used for cultivation of cultivated crops as liquid fertilizer.

  If necessary, the aeration treatment liquid may send manure fluid stored in the aging tank 2 to the pre-storage tank 3. For example, the level sensor 243 detects that the amount of manure fluid in the front storage tank 3 is less than a predetermined amount, and the level sensor 204 detects that the amount of manure fluid in the aeration treatment tank 1 is also small. In this case, the valves 130 and 131 are opened, the valves 124, 132 and 133 are closed, and the pump 55 is driven, so that the urine fluid stored in the aging tank 2 through the pipes 55b and 85 is stored in the pre-storage tank 3. You may make it send to. As a result, the pre-reservoir 3 can always secure the manure fluid even when the amount of manure fluid input or the amount of manure fluid in the aeration treatment tank 1 is small, and can prevent the bacteria in the manure fluid from being killed.

  Further, the aeration treatment liquid may be selectively sent from the aeration treatment tank 1 and the aging tank 2 to the front storage tank 3. For example, when the level sensor 243 detects that the amount of the excrement fluid in the front storage tank 3 is less than a predetermined amount, the value of the level sensor 204 of the aeration tank 1 and the level sensor 225 of the aging tank 2 The value of 226 may be compared, and the aeration treatment liquid may be sent to the pre-reservoir 3 from the side with more aeration treatment liquid. Even in this way, the pre-reservoir 3 can always secure the manure fluid even when the amount of manure fluid to be introduced or the amount of manure fluid in the aeration treatment tank 1 is small, and can prevent the bacteria in the manure fluid from being killed. it can.

In the present embodiment, for example, if 100 cows of milking cows are treated, the milking cow discharges 60 kg of manure per head (breakdown is 40 kg of shit, 20 kg of urine), and this manure is separated into solid and liquid. When solid-liquid separation is performed by the apparatus, 50 kg of manure fluid is obtained per milking cow, and therefore 5 t (5 m ³ ) of manure fluid is discharged per day from 100 milking cows. In this case, the capacity of the aeration tank 1 15 m ^3, and the capacitance of the aging tank 2 and the front reservoir 3 is set to 10 m ^3, respectively manure processing device next step processor manure fluid by 5 m ³ per day As a result, the aeration process of the manure fluid for one day is completed in a short period of about 5 days. As described above, from the fifth day after the manure fluid is first introduced into the pre-reservoir 3, when 5 m ³ of manure fluid is introduced into the pre-reservoir 3 every day, 5 m ³ of the aeration liquid is aged every day. Therefore, it becomes possible to continuously perform the aeration process of manure fluid.

  In the feces and urine treatment apparatus according to the present embodiment, each of the aeration treatment tank 1, the aging tank 2, and the pre-storage tank 3 is configured by a stainless steel unit structure. As a result, each unit is made in advance in the factory, and at the installation site, it is only necessary to install the unit and connect the units, and the construction period can be significantly shortened compared to the conventional method.

  In the present embodiment, the aeration tank 1, the aging tank 2, the pre-storage tank 3, the external storage tank 4, the drain tank 5, the solid-liquid separator 6, the controller 7, and the control device 8 are configured. The number and volume, the order of the aeration process of manure treatment, the layout of each tank, etc. are not limited to this, and the number of heads, installation location, etc. can be freely modified and changed as necessary.

  In the present embodiment, the flow rate and the pH value are described as parameters for controlling the aeration treatment tank. However, the parameters for controlling the aeration treatment tank are not limited thereto, and for example, the BOD value, the COD value, and the electric conduction It can be changed freely as needed. Further, the flow rate, pH value, BOD value, COD value, electrical conductivity, and the like can be used in appropriate combinations as parameters for controlling the aeration treatment tank. These can be realized by providing a sensor that detects the BOD value, the COD value, and the electrical conductivity electrically connected to the controller 7 in the aeration treatment tank.

  The present invention can be applied to an apparatus that performs an aeration process.

It is the schematic of the excrement processing apparatus of this invention. It is the II-II sectional view taken on the line in FIG. It is the III-III sectional view taken on the line in FIG. It is the IV-IV sectional view taken on the line in FIG. It is a schematic diagram which shows the structure of a solid-liquid separator. 3 is a block diagram showing a configuration of a controller 7. FIG. 4 is a flowchart showing a control method of the controller 7. It is a block diagram for demonstrating the other example of control of an aeration processing tank.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Aeration processing tank, 1a ... Aeration processing part, 1b ... Circulation part, 2 ... Aging tank, 3a, 3b ... Aging part, 3 ... Pre storage tank, 5a, 5b ... Pre storage part, 4 ... External storage tank, 5 DESCRIPTION OF SYMBOLS ... Drain tank, 6 ... Solid-liquid separator, 6a ... Liquid storage tank, 6b ... Compost unit, 7 ... Controller, 8a ... Control part, 8b ... Memory, 8c ... I / F, 8d ... Operation part, 8e ... Display , 8 ... control device, 89 ... circulating pump, 89a ... pump part, 89b ... pipe, 101 ... compressor, 102 ... tank, 103 ... boiler, 105 ... air supply port, 106 ... fluid output port, 107 ... fluid input port , 111 to 143 ... valve, 152 ... feedback pipe, 201, 221, 222, 241 ... pH sensor, 202 ... flow sensor, 203, 223, 224, 242 ... temperature sensor, 204, 225, 226, 2 3 ... Level sensor, 301 ... Base, 302 ... Separating part, 302a ... Cover, 302b ... Screw shaft, 302c ... Screen, 303 ... Receiving hopper, 304 ... Pressurizing part, 304a ... Cover, 304b ... Pressure adjusting plate, 304c ... Support part, 304d ... spring, 305 ... motor.

Claims (2)

A solid-liquid separator that separates manure into solid matter and manure fluid;
A compost unit for storing solids separated by the solid-liquid separator;
A pre-reservoir for storing the manure fluid separated by the solid-liquid separator;
An aeration treatment tank for aeration treatment of the manure fluid stored in the previous storage tank;
An aging tank for storing the output from the aeration tank;
A pipe that is provided between the pre-reservoir and the aeration tank, and feeds the excrement fluid in the pre-reservoir to the aeration tank;
A first pipe that is provided between the pre-storage tank and the aeration tank, and sends manure fluid in the aeration tank to the pre-storage tank;
A first valve provided in the first pipe;
A control device for opening and closing the first valve;
The aeration tank is
An aerator located near the bottom of the tank;
An anti-foaming water by defoaming the foam generated in the tank at the top, and an output unit for outputting this to the aging tank,
The pre-storage tank is
A circulation pump provided at a position lower than the level of the excrement fluid constantly stored at a predetermined level in the tank;
A pre-storage tank level sensor for detecting the height of the liquid level in the tank,
When the front storage tank level sensor detects that the liquid level of the front storage tank is lower than a predetermined level, the control device opens the first valve to open the first storage tank from the first aeration treatment tank. The manure processing apparatus, wherein the manure fluid is output to the pre-reservoir via a pipe. A pipe that is provided between the pre-storage tank and the aging tank, and that feeds the excrement fluid in the aging tank to the pre-storage tank;
A second valve provided on the pipe, and
The aeration treatment tank further includes an aeration treatment tank level sensor for detecting the height of the liquid level in the tank,
The aging tank further comprises an aging tank level sensor for detecting the height of the liquid level in the tank,
When the control device detects that the liquid level of the pre-storage tank is lower than a predetermined level by the pre-storage tank level sensor, the control device uses the aeration tank level sensor and the aging tank level sensor to The height of the liquid level of the aging tank is detected, and the first valve or the second valve is selectively opened based on the detected value, and the pre-storage tank from the aeration tank or the aging tank. The manure processing apparatus according to claim 1, wherein the manure fluid is output to the manure.

Images