JPH067050A - Method for treating excrementitious matter in cattle shed and facility - Google Patents

Abstract

PURPOSE:To obtain good-quality compost and effectively clean a cattle shed by recycling excrementitious matter and cleaning a dung-removing road with recycled urine. CONSTITUTION:Recycled urine is jetted through floor valves T1 to T5 onto a dung-removing road 12 having downward slope in a cattle shed to clean the dung-removing road. Excrementitious matter, etc., are led to a storage tank 20 and stirred by an agitator 21 and slurry is fed to a separator 30 under pressure by a pump P1 and subjected to solid-liquid separation. The separated urine liquid is fermented to afford the recycled urine and the urine is fed from a storage tank 50 to a flash tank under pressure by a pump P2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for flushing and cleaning the excrement of livestock houses such as cowsheds by recycling urine. More specifically, it can be implemented alone or as a part of a fertilizing irrigation system. The present invention relates to a method for treating manure in a livestock house and an improvement in the apparatus.

[0002]

2. Description of the Related Art A fertilizer irrigation system is known as a manure treatment for barns. This system discharges manure from the cowshed outside by using a barn cleaner, etc., separates it into manure and dirt straw with a separator, and collects the manure into a storage tank.
This is a method in which the soiled straw containing solid manure is used as compost, and the manure in the storage tank is transferred to the aeration tank for fermentation, heat-up, and sprayed as fertilizer in the field.

[0003]

[Problems to be Solved by the Invention] In order to rationalize dairy farming, it is necessary to increase the number of reared animals. However, when the number of reared animals increases, manure also increases. However, it becomes difficult to cope with these increases, and the liquid fertilizer becomes immature. On the other hand, since the field where liquid fertilizer is applied cannot be expanded, an imbalance occurs between the amount of immature liquid fertilizer and the field. When excess liquid manure is released, pollution such as foul odor and water pollution occurs, so that reprocessing such as evaporation, concentration and purification is necessary, but the reprocessing cost has a problem of putting pressure on dairy farming.

The present invention has been made to solve this problem, and its purpose is to separate excreta into undigested content, digested content and urine even if the number of reared animals is increased. The purpose of the present invention is to provide a livestock house cleaning system that not only produces good quality compost by preventing foul odors and early fermentation, but also improves the livestock house cleaning effect.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the means adopted by the present invention is to provide a slope in the excrement passage of a livestock shed, and guide the excrement discharged from the excretion passage to the first storage tank. , The slurry in the first storage tank is supplied to a separator via a pump to separate into solids and urine fluid, and the urine fluid is introduced into a second storage tank, where fermentation and putrefaction are carried out to precipitate digested components. , Send only the supernatant urine to the third storage tank, further ferment and ripen it to make usable recycled urine, and pump the recycled urine from the third storage tank to the flash tank on the rack, and then the flash tank This is to eject recycled urine through a floor valve provided at the uppermost stream of the cattle shed defecation route and to wash the defecation duct with the recycled urine. It is desirable that the debris passage be provided with the necessary slope and the flow distance be increased to provide the aeration effect. It is desirable to attach an agitator to the first storage tank and automatically control the liquid to operate for a certain period of time when the liquid level reaches a predetermined upper limit. Similarly, when the liquid level reaches a predetermined upper limit, a pump for sending the slurry to the separator operates, and when the liquid level falls to a predetermined lower limit, the pump is automatically stopped so as to stop. The separator is controlled to automatically start and stop based on the stoppage of the pump of the first storage tank. Second from separator
The liquid transfer from the storage tank or the second storage tank to the third storage tank may be a natural flow-down type or a forced pump type, but in the case of the forced pump type, automatic control is desirable. The pump that feeds the liquid from the third storage tank to the flash tank is automatically controlled by a temporal program. When the flash tank reaches a certain level, the flush valve opens, thereby opening the floor valve and ejecting a certain amount of urine into the defecation duct.

It is desirable that the third storage tank be provided near the barn as a tank for assembling a concrete panel, which has a large capacity and is inexpensive for the required area.

[0007]

[Operation] According to the preset program,
The recycled urine in the third storage tank is pumped to the flash tank. When the level of the delivered flash tank reaches a certain level, the flash valve opens and the urine in the tank is discharged all at once to the floor valve. As a result, recycled urine with a high head is vigorously ejected from the floor valve, and the manure and the like on the defecation road and on the road wall are washed away. Manure and the like flow down to the first storage tank due to the slope of the defecation route.
When the first storage tank reaches a certain level, the agitator operates and agitates for a certain time, and the pump automatically operates to feed the slurry to the separator. At the same time, the separator automatically operates to separate the sent slurry into solids and urine, and the urine enters the second storage tank by gravity flow or by a pump. When the liquid level in the first storage tank falls to the lower limit, the pump automatically stops, and then the separator also stops. The recycled urine that can be used as the liquid fertilizer in the second storage tank enters the third storage tank by gravity flow or by pumping. The liquid fertilizer in the third storage tank is sprayed on the field as needed.

As described above, since the recycled urine is repeatedly used for cleaning the defecation path of the livestock shed, it is continuously aerated by contact with air and is returned to the field as a high quality liquid fertilizer. Since recycled urine has the same cleaning action as water, it is possible to more effectively clean the barn.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The system of the present invention will be described based on the embodiments shown in the drawings. As shown in FIG. 1, the cowshed 10 is a free stall system, is long in the east and west, and is divided into four sections.
In each section, 50 stalls 11 for 50 horses are arranged in two rows in the east-west direction. The east side debris road goes to the west side, and the west debris line goes down to the east with a slope of 1 to 5%, respectively, and both are connected to the central road 13 leading to the debris road 12 in the holding area 14 on the south side. .
The central road 13 descends toward the north with a gradient of 1 to 5% and reaches the first storage tank 20.

As shown in FIGS. 1 and 2, manure and the like in the defecation channel 12 flows to the central channel 13 along the arrow and then flows into the first storage tank 20. The first storage tank 20 is provided with an agitator 21, sensors 22 and 23 for detecting arbitrary high and low levels, and a pump P1 for discharging the slurry in the tank. Pump P1
Sends the slurry to the separator 30 through the pipe 24 as shown by the arrow. The separator 30 is a solid-liquid separation system using a screen and a roll press. The slurry is separated into solid content, that is, undigested content, digested content and urine, and the solid content is used as compost and litter. A cleaning device 31 having a hot water device 32 is attached to the separator 30. The urine fluid separated by the separator 30 is passed through the pipe 34 to the second
Allow it to naturally flow down to the storage tank 40. In the second storage tank 40, the urine fluid is fermented and turned into heat, the digested matter is precipitated, and the upper portion becomes recycled urine that can be sprayed as liquid fertilizer. This urine naturally flows down to the third storage tank 50 through the pipe 44.

The third storage tank 50 is an assembly tank constructed by winding and assembling concrete panels with steel wires. Since the space required is small and the cost is low, it is easy to install it near a livestock shed. is there. Two pumps P2 and P3 are attached to the third storage tank 50. As shown by the arrow, the pump P2 sends urine to five flash tanks T1, T2, T3, T4, T5 installed outside the cowshed 10 through a pipe 54. The five flash tanks are the two floor valves F1 to F2 installed at the most upstream position of each waste line 12 of the barn 10.
Connect to 10. There are two flash tanks outside the eastern and western ends of the barn 10 and one outside the central holding area 14. Another pump P3 of the third storage tank 50 is used to deliver the urine in the tank as liquid fertilizer.

As shown in FIG. 3, the valve F1 at the most upstream position of each waste line 12 is a hydraulic floor valve. The urine pressure-fed from the third storage tank through the pipe 54 fills the flash tank T1 and when it reaches a certain level, the flash valve 55 opens, and the urine in the tank is discharged at a stroke with a drop. The valve F1 is opened by the pressure, and urine is ejected to the defecation channel 12. The overflow of the flash tank is introduced into the pipe 57 by the bypass 56, but it may be returned to the waste line.

Next, the cleaning of the present invention will be described. First
When excrement or the like rises to the upper limit level by the sensors 22 and 23 of the storage tank 20, the agitator 21 is operated for a certain time, the separator is driven, and then the pump P1 is driven. When it is lowered to a low level, the pump P1 is stopped, the cleaning device attached to the separator is operated for a certain period of time, and when cleaning is completed, the separator is stopped. During the winter, the agitator is operated for a certain period of time, and the separator is washed for a certain period of time with hot water discharged from the washing device attached to the separator. After driving the separator, the washing device is stopped. Next, when the pump P1 is driven and lowered to a low level, the pump P1 is stopped and washed with warm water discharged from a cleaning device attached to the separator for a certain period of time, and when the cleaning is finished, the separator is stopped, and according to a preset program, An automatic control device is provided that operates the pump P2 to pump a predetermined amount of urine in the third storage tank 50 to the flash tank.

As shown in the flow chart of FIG. 4, when the pump P2 of the third storage tank 50 is operated by this automatic control device, the urine of the third storage tank 50 is pressure-fed to the flash tank 60, so that the flash tank 60 is discharged. When the level reaches the upper limit, the flush valve 61 is opened, and urine is ejected from the floor valves F1 to F10 of each waste line 12. The urine with the energy of the head becomes a torrent, and the dung on the defecation channel 12 and on the road wall,
Wash away urine, etc. Since each slope has a 1-5% downward slope to the central passage 13, all the feces, urine, etc. flow into the central passage, and the central passage 13 connects to the first storage tank 20 with a downward slope, so it is washed away. The collected dung, urine, etc. all flow into the first storage tank 20. The first storage tank when inflowing dung, urine, etc.
When the level of 20 rises and reaches the upper limit, the signal of the sensor 22 causes the agitator 21 to operate and stir for a certain period of time, so that feces, urine, etc. are all slurried. Then, the pump P1 is operated to pass the slurry through the pipe 24 to the separator.
Pump to 30. When the slurry is pumped and the level drops to the lower limit, the pump P1 is stopped. The separator 30 operates when the slurry is fed under pressure to separate the slurry into a solid content and a urine solution, and the urine solution naturally flows down to the second storage tank 40 through the pipe 34. When the pumping of the slurry stops, the separator 30 stops, and the cleaning device 31 operates for a certain period of time to clean the separator 30. In the winter, a hot water device that warms the wash water of the wash device operates. The recycled urine, which has been used as liquid fertilizer after being rotted in the second storage tank 40, naturally flows down to the third storage tank 50 through the pipe 44.

Thus, since the recycled urine is used for cleaning the barn, it is constantly aerated with air, and is returned to the field as a high-quality liquid fertilizer. Since the urine ejected from the floor valve has a relatively large energy of head, it is possible to effectively clean the debris passages 12. Since each debris passage 12 is a long path, the flowing urine is effective. Subject to aeration.

[0016]

EFFECTS OF THE INVENTION Livestock farmers so far have not treated human waste sufficiently and treated it as an obstacle. On the other hand, the system of the present invention made it possible to recycle excrement, that is, to improve the effect of cleaning the inside of the livestock store by flushing the fermented urine and returning it to the field as liquid fertilizer. In addition, the solid content and the undigested content obtained by solid-liquid separation from excreta are 70 ° C to 8 ° C in about 8 weeks.
It is hygienic and can be used as a litter because it raises the fermentation temperature to about 0 ° C. and kills the seeds of weeds and the like. The system of the present invention for fermenting manure in a short period of time to improve the effect of organic fertilizer has an excellent effect of reducing the load on the agricultural environment due to a large amount of chemical fertilizer input.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a system of the present invention,

2 is an elevational view of the embodiment of FIG. 1,

FIG. 3 is a diagram showing a main part of FIG.

4 is a flowchart of the embodiment of FIG. 1,

[Explanation of symbols]

10: cow shed, 12: removal path, 13: central passage, 20: first storage tank, 21: agitator, 22, 23: sensor, 24: piping, 3
0: separator, 34: piping, 40: second storage tank, 44: piping, 50: third storage tank, 54: piping, 55: flush valve, 57: piping, F1 to F10: floor valve, P1, P2,
P3: pump, T1 to T5: flash tank,

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location C05F 3/06 H 7057-4H

Claims (5)

[Claims] 1. A step of ejecting recycled urine from a flash tank (T1 to T5) through a floor valve (F1 to F10) provided at the most upstream position of a descent path (12) having a downward slope in a barn (10). A step of washing the defecation channel with the urine, a step of guiding the excrement and the like washed out by the gradient of the defecation channel to the first storage tank (20), the excrement and the like in the first storage tank ( According to 21), a step of stirring and washing the fibrous material that is a solid content with urine of a liquid content to form a slurry, and a step of pumping the slurry to the separator (30) by the first storage tank pump (P1), A step of performing solid-liquid separation of the slurry in the separator, a step of guiding the separated urine fluid to the second storage tank (40), and a reservoir that can be used as liquid fertilizer by aging the urine fluid in the second storage tank. The process of turning the urine into a curl and the process of guiding the recycled urine to the third storage tank (50) and further ripening the urine solution, and pumping the recycled urine from the third storage tank to the flash tank by the pump (P2). A method for treating livestock shed, which comprises the steps of: 2. A livestock shed (10), a first storage tank (20) into which manure is discharged from the livestock shed, and a slurry (manure) pump (P1) and a pipe (24) from the first storage tank. Separator (30) pumped through the second and second urine fluid separated from the separator flows in through the pipe (34)
In a livestock manure treatment device comprising a storage tank (40) and a third storage tank (50) into which recycled urine that can be used as liquid fertilizer flows from the second storage tank via a pipe (44), Desloping path (1
2) is provided, and the floor valve (F1 to F1
F10) is provided and a pump (P2) for pumping the recycled urine from the third storage tank to the flash tanks (T1 to T5).
And a pipe (54) to discharge the recycled urine in the flash tank to the floor valve.
5) A livestock manure treatment device, which is provided with a pipe (57). 3. The livestock manure treatment device according to claim 2, wherein the separator (30) is provided with a cleaning device equipped with a hot water device. 4. A sensor (22.23) for detecting the upper and lower limits of the level is provided in the first storage tank, the agitator (21) and the water heater are operated for a certain period of time in the winter by a signal of the upper limit sensor (22), and a pump ( P1) and separator (30) are operated in sequence, and the pump (P
When 1) is stopped, the cleaning device attached to the separator is operated for a certain period of time, and when cleaning is completed, the separator is stopped and the pump (P2) of the third storage tank is programmed according to the program.
The livestock manure treatment device according to claim 2 or 3, further comprising an automatic control device for operating the livestock manure. 5. The livestock manure treatment device according to any one of claims 2 to 4, wherein the third storage tank is a tank assembled by winding a concrete panel around a steel wire.