JP2000117297A - Livestock excreta aerator and livestock excreta treating equipment using same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently aerate livestock excreta. SOLUTION: The livestock excreta stored in a tank without solid and liq. separation is sucked in by the rotation of an impeller 11d and sucked excreta is jetted into the tank from a nozzle 13. In the equipment, a cutter pump 11 for crushing the solid in the jetted excreta with its rotary cutter 11d and an air supply means 19 disposed close to the blowing port of the nozzle 13 for blowing compressed air for aeration supplied from a blower into the excreta jetted from the nozzle 13 are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a livestock manure aeration apparatus and a livestock manure processing facility using the same.

[0002]

2. Description of the Related Art Conventionally, as an aeration device for manure, manure is aerated by blowing air into manure stored in a tank, and the manure is circulated in the tank by the rising action of air bubbles of the blown air. As a result, there is a type in which the entire manure in the tank is aerated as uniformly as possible, and the same type of manure is also used in the aeration of livestock manure.

[0003]

However, in the case of livestock manure having a high solid content, simply blowing air into a part of the tank may cause oxygen to locally dissolve into the manure near the blowing point. It is not possible to efficiently aerate the entire excrement in the tank simply by proceeding, so that the treatment takes a long time and the processing equipment becomes large, and anaerobic fermentation is conspicuous and a strong odor is generated. There was a problem.

There is also a system in which air diffuser for blowing air is spread over the entire bottom of the tank to uniformly aerate the entire excrement in the tank. In this case, however, the diffuser is provided at the bottom of the tank. The facility cost is extremely high because the facility is spread over the whole, and there is a problem that it is difficult to use it in general dairy and livestock farmers.

[0005] In view of this situation, the main problems of the present invention are:
The problem is solved by adopting a reasonable device configuration.

[0006]

Means for Solving the Problems [1] In the invention according to claim 1, in the aeration apparatus for livestock manure, the livestock manure stored in the tank in a state where solids and liquids are not separated is rotated. The wings are rotated to inhale, and the excreted manure is ejected from the nozzle into the tank, and at the same time, a cutter pump for crushing the solid content of the inhaled manure by an attached rotary cutter, and an aerator supplied from a blower. Air supply means for injecting pressurized air into the excreta ejected from the nozzle from an inlet arranged near the outlet of the nozzle.

[0007] According to this configuration, even for livestock manure having a high solid content concentration, the manure can be efficiently stirred over a wide area in the tank by the pulverization of the solid content by the rotary cutter and the ejection of the manure from the nozzle. Also, by blowing pressurized air for aeration supplied from a blower to the manure ejected from the nozzle near the nozzle outlet,
The blown air is finely divided by the ejection power of the nozzle, and the solid content is efficiently contained in the pulverized manure,
The excreted manure can accompany the manure, so that the entire manure in the tank can be efficiently aerated.

Therefore, as compared with the conventional apparatus in which air is simply blown into a part of the tank, the time required for the processing is shortened, the processing equipment is miniaturized, and the anaerobic fermentation is suppressed to suppress the generation of offensive odor. Can be eliminated. Also,
Since it adopts a form that promotes agitation of manure and diffusion of micronized air by jetting from the nozzle, the air diffusing means that blows air is spread over the entire bottom of the tank, compared to a facility where facilities are installed.
The equipment cost can be significantly reduced, and handling such as maintenance of the apparatus can be simplified.

By the way, in order to make the fine air for aeration accompanying the ejected manure, as another method, the air for aeration is supplied to the rotary wing chamber of the pump which inhales and ejects the manure.
A method of discharging manure containing fine air from the pump outlet is also conceivable, but in this case, the pump's suction / discharge performance for manure deteriorates due to the supply of highly compressible air to the rotor chamber of the pump. Resulting in.

On the other hand, as described above, by adopting a configuration in which aeration air is blown into manure ejected from the nozzle at a position near the nozzle outlet, the pump can be operated without reducing the suction / discharge performance for manure. From this, it is possible to more efficiently stir the manure in the tank by the manure ejection.

[2] According to a second aspect of the present invention, in the above-described first aspect of the present invention, the blow-off port forming portion of the air supply means is integrated with the nozzle.

According to this configuration, for example, as compared with a case where the blow-out member formed separately from the nozzle is selected at an appropriate position in the vicinity of the nozzle outlet and is appropriately disposed at that position, the blow-out forming member with respect to the nozzle is not required. By the integration, it is possible to reliably maintain the optimal relative position between the nozzle and the blowing port, which can make the blowing air from the blowing port most efficiently contained in the excreted urine from the nozzle, thereby ensuring the high aeration performance as described above. It can be obtained stably.

When the direction of the nozzles can be changed or moved freely, the direction of the nozzles can be changed or moved together with the direction and movement of the nozzles while maintaining the optimum relative position. Thereby, the handling of the nozzle can be simplified in comparison with the operation of changing the direction of the nozzle and the operation of moving the nozzle separately from the operation of changing or moving the direction of the nozzle.

[3] In the invention according to claim 3, in the livestock manure processing equipment, an aeration tank for aerating the livestock manure in the tank by the livestock manure aeration device according to the first or second aspect of the present invention; A storage tank for storing and aging fermentation of solid and liquid non-separated livestock excreta aerated in this aeration tank, transfer of excreta from the aeration tank to the storage tank, and return of excreta from the storage tank to the aeration tank And a transfer means for performing the following.

That is, in this configuration, the livestock manure according to the first or second aspect of the present invention is provided in an aeration tank while the excrement of the livestock excreta is not subjected to a separation process into a solid component and a liquid component and is kept in a solid-liquid non-separated state. The manure is efficiently aerated by the manure aeration device, and the manure after the aeration is transferred to the storage tank by the above-mentioned transfer means, and is aged and fermented in the storage tank. And since anaerobic fermentation occurs during this aging period, if it is used as it is as a fertilizer, a bad smell will be produced, but for this, the fermented manure is aged from the storage tank to the aeration tank by the above-mentioned transfer means. The fertilizer is returned and aerated in the aeration tank again, and is then taken out as fertilizer, thereby preventing the generation of offensive odor when used as fertilizer.

That is, according to this configuration, since manure can be processed in a solid-liquid non-separated state, the equipment can be simplified as compared with processing equipment that separates into solids and liquids and performs separate processing. It is possible to obtain a high processing efficiency and to use the aeration tank efficiently for the aeration treatment before fermentation and the re-aeration treatment for deodorization after fermentation. From these facts, it becomes an excellent livestock manure processing facility that can efficiently produce odorless fertilizer while having a low facility cost and a small space requirement.

[0017]

1 and 2 show a livestock manure treatment facility, wherein 1 is a first aeration tank also serving as an inflow tank, 2 is a second aeration tank, and excrement of cattle discharged from a cowshed 3 Without flowing into the first aeration tank 1 through the inflow path 4 without subjecting the first aeration tank 1 to the first aeration tank 1.
The excrement is subjected to an aeration process in the storage process in the first step, and then the excreta subjected to the aeration process in the first aeration tank 1 is transferred to the second aeration tank 2, and the excretion is further aerated in the storage process in the second aeration tank 2. Perform processing.

Reference numeral 5 denotes a storage tank for transferring solid-liquid non-separated manure aerated in the second aeration tank 2 from the second aeration tank 2 for aging and fermentation. The storage tank 5 stores the manure stored in the tank. A stirrer 6 for stirring to suppress the generation of scum is provided.

Reference numerals 7 and 8 denote aeration devices provided in the first aeration tank 1 and the second aeration tank 2, respectively. As shown in FIGS. 3 and 4, the aeration devices are trucks towed by a tractor or the like. 9 is a movable device in which the device main body is mounted.

In these aerators 7 and 8, reference numeral 10 denotes a support frame attached to the carriage 9 so as to be slidable, 11 denotes a cutter pump attached to the tip of the support frame 10, and 12 denotes manure sent from the cutter pump 11. A lifting pipe for guiding, 13 is a nozzle provided at a position of the lifting pipe 12 close to the cutter pump, and 14 is a transmission case having a transmission shaft 15 for transmitting rotational power to the cutter pump 11 therein. 14 is the cutter pump 1
1 together with a support frame 10, and a sliding movement operation of the support frame 10 causes a cutter pump 11, a lifting pipe 12, and a transmission case 14 constituting an apparatus main body.
Can be integrally changed between a storage position on the trolley 9 and a use position lowered from the trolley 9.

The cutter pump 11 rotates the rotary blades 11b contained in the pump case 11a by the rotational power from the transmission shaft 15, so that the solid-liquid non-liquid in the first and second aeration tanks 1 and 2 is supplied from the suction port 11c. The excreted manure is sucked, and the excreted manure is discharged to the pumping tube 12.
By rotating d with the rotary wing 11b, the solid content of the inhaled manure is crushed.

At the part of the pumping tube 12 where the nozzle 13 is attached, manure discharged from the cutter pump 11 is supplied to the pumping tube 1.
2 is stopped and the nozzle 13 is ejected from the nozzle 13 into the aeration tanks 1 and 2, and the ejection from the nozzle 13 is stopped and sent to the upper end of the discharge pipe 12. A switching valve 16 for switching is provided, and at the time of the aeration process in each of the aeration tanks 1 and 2, the manure stored in the tank is greatly agitated by the excretion of manure from the nozzle 13 to promote the aeration of the stored manure. In the transfer of manure from the first aeration tank 1 to the second aeration tank 2 and the transfer of manure from the second aeration tank 2 to the storage tank 5, the manure is connected to the pumping pipe 12 by sending the manure to the upper end side of the pumping pipe 12. Manure is transferred through the hose 17.

As shown in FIG. 5, the nozzle 13 is provided with a front end of an air supply pipe 19 for introducing pressurized air for aeration from a separate blower 18, and a blowing port 19 a at the front end thereof is provided with the nozzle 1.
3 and integrally attached adjacent to the ejection port 13a,
Pressurized air for aeration from the blower 18 is blown into the excrement discharged from the nozzle 13 at a position in the vicinity of the nozzle outlet 13a from the blow port 19a. The solids are efficiently contained in the pulverized excreta in a finely divided state to accompany the excreted excreta, so that the entire excrement in the tank is efficiently aerated.

Reference numeral 20 denotes an operation lever for switching the switching valve 16, reference numeral 21 denotes an operation lever for rotating the nozzle 13 about the horizontal axis p to change the direction, and reference numeral 22 denotes a nozzle for rotating the nozzle 13 about the vertical axis q. Operation handle to change the orientation
Reference numeral 23 denotes an input unit for inputting the power taken out of the tractor and the power of the motor as transmission power to the transmission shaft 15.

In FIGS. 1 and 2, reference numeral 24 denotes a return path for returning the manure aged and fermented in the storage tank 5 to the second aeration tank 2 by flowing down, and reference numeral 25 denotes an on-off valve for opening and closing the return path 24. By providing the return path 25, when removing manure aged and fermented in the storage tank 5 as fertilizer, the return path to the second aeration tank 2 in a state where the aerated manure in the tank is transferred to the storage tank 5. A required amount of manure is returned from the storage tank 5 through 24, and the returned manure is re-aerated by the aeration device 8 in the second aeration tank 2, and then transported as fertilizer from the lifting pipe 12 of the aeration device 8 To be taken out.

In other words, since only agitation is performed in the storage tank 5 to prevent scum from occurring, anaerobic fermentation occurs. Therefore, the manure aged and fermented in the storage tank 5 is directly used as fertilizer. However, as described above, the manure in the storage tank 5 is again aerated in the second aeration tank 2 using the second aeration tank 2 and taken out as fertilizer, thereby generating a bad smell in use as a fertilizer. Can be prevented.

In the above-described configuration, the air supply pipe 19 connected to the aeration devices 7 and 8 applies the pressurized air for aeration supplied from the blower 18 to the manure ejected from the nozzle 13 near the ejection port of the nozzle 13. Air supply means for injecting air from the arranged air inlet 19a is configured. The cutter pump 11, the hose 17, and the return path 24 of the aeration devices 7 and 8 transfer manure from the aeration tanks 1 and 2 to the storage tank 5, Further, a transfer unit for returning manure from the storage tank 5 to the aeration tank 8 (the second aeration tank in this example) is configured.

[Another Embodiment] Next, another embodiment will be described.

The structure of the rotor blades, the structure of the rotary cutter, and the structure of the nozzle in the cutter pump of the livestock manure aeration device can be changed in various ways. Also, as in the above-described embodiment, the cutter pump can be moved from the nozzle to the nozzle. Instead of performing both the aeration for discharging manure into the tank and the transfer for removing manure from the tank, a dedicated aeration machine that only blows inhaled manure from the nozzle into the tank may be used.

The specific structure of the air supply means for injecting pressurized air for aeration supplied from the blower into the excrement ejected from the nozzle from the nozzle arranged near the nozzle outlet, particularly the structure of the inlet part, is as follows. Various configurations can be changed without being limited to the structure described in the above embodiment.

In the above-mentioned embodiment, the first and second aeration tanks for performing aeration treatment of solid-liquid non-separated manure in two stages have been described as to the livestock manure processing equipment. The aeration tank may perform the aeration treatment in multiple stages and transfer to the storage tank, or may transfer to the storage tank only by one stage of aeration treatment.

In the above-described embodiment, an example is shown in which manure is transferred from the aeration tank to the storage tank by a cutter pump also used for aeration, and the manure is returned from the storage tank to the aeration tank by a flow-down type return path. However, various other types of transport means for transporting and returning the manure can be applied.

The manure to be treated is not limited to cattle manure, and may be any other manure.

[Brief description of the drawings]

FIG. 1 is a plan view showing a facility configuration of a livestock manure processing facility.

FIG. 2 is a side view showing a facility configuration of a livestock manure processing facility.

FIG. 3 is a side view showing an aeration device for livestock manure.

FIG. 4 is a plan view and an enlarged sectional view of an aeration device for livestock manure.

FIG. 5 is an enlarged view of a nozzle portion.

[Explanation of symbols]

 1, 2 aeration tank 5 storage tank 7, 8 livestock excreta aeration device 11 cutter pump 11d rotary cutter 11b rotary blade 13 nozzle 13a nozzle jet port 18 blower 19 air supply means 19a blow port 11, 17, 24 transfer means

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Ryuzo Nakamura 64 Ishizu-Kitacho, Sakai-shi, Osaka F-term in Kubota Sakai Works Co., Ltd. (Reference) 4D029 AA01 AA09 AB06 4D059 AA01 BA03 BJ09 BK11 BK14 CB01 CC01

Claims (3)

[Claims] 1. A livestock excreta stored in a tank in a state in which a solid content and a liquid content are not separated is inhaled by rotation of a rotary wing, and the sucked excreta is ejected from a nozzle into the tank, and at the same time. A cutter pump for crushing the solid content of the inhaled manure by an associated rotary cutter, and a blower in which pressurized air for aeration supplied from a blower is disposed near the ejection port of the nozzle with respect to the manure ejected from the nozzle. A livestock manure aeration device comprising: an air supply means for blowing air from a mouth. 2. The livestock manure aeration apparatus according to claim 1, wherein a portion of said air supply means in which said blowing port is formed is integrated with said nozzle. 3. An aeration tank for aerating livestock manure in a tank by the livestock manure aeration apparatus according to claim 1 or 2, and storing and ripening solid-liquid non-separated livestock manure aerated in the aeration tank. Livestock manure processing equipment provided with a storage tank for fermentation, and a transfer means for transferring manure from the aeration tank to the storage tank and returning manure from the storage tank to the aeration tank.