JPS597903B2 - Livestock manure processing equipment - Google Patents

Description

Detailed Description of the Invention The present invention comprises a plurality of manure drying beds 1 arranged in parallel and a manure fermentation bed 3 having a deeper depth than the manure drying bed 1. The starting end of the manure fermentation bed 3 and the manure drying bed 1
This device relates to a livestock manure processing device characterized in that it is continuous with a transport path 2 disposed perpendicularly to a fermentation bed 3 of manure and manure, and its purpose is to Pillars can be placed between the feces and urine drying beds in the interior, and the agitation conveyor is small, so the overall length is not very long, and one manure fermentation bed can serve multiple manure and urine drying beds. To provide a livestock manure processing device capable of effectively drying and fermenting a large amount of manure with the device which can be installed without taking up a large space.

The present invention will be explained in detail below with reference to Examples.

In the figure, reference numeral 4 denotes a drying house, in which raw livestock manure such as pig manure and cow manure produced in a livestock shed is sent into the drying house 4 for drying and fermentation of the manure.

The ceiling and walls of the drying house 4 are made of a material with good light transmittance and weather resistance.

The interior of the drying house 4 is of a multi-building type, with each of the plural buildings serving as a manure drying bed 1, and one building serving as a manure fermenting bed 3.

In the figure, reference numeral 2 denotes a conveyance path located at the end of the plurality of excrement drying beds 1, and the end is continuous with the excrement fermentation bed 3.

That is, the conveyance path 2 is constructed of a groove-shaped structure made of concrete or the like, in which a conveyance device such as a van cleaner, which has a number of conveyor plates attached to a rotating chain, is installed. , serves to send the dried manure sent from the manure drying bed 1 to the manure fermentation bed 3.

In the figure, reference numeral 5 denotes an agitation conveyor that can run freely along the upper surface of the excrement drying bed 1, and is provided in each excrement drying bed 1.

Here, when the agitation conveyance machine 5 moves from the terminal end to the start end of the excrement drying bed 1, the agitation blade provided in the agitation conveyance machine 5 descends, and the agitation blade rotates forward in the advancing direction of the agitation conveyance machine 5. For example, a reciprocating operation in which the stirring blade moves to the starting end while stirring the excrement and urine, and at the same time scrapes the excrement to the terminal end, and when returning from the starting end to the terminal end, the stirring blade rises and returns to the terminal end with a distance from the excrement. This is a motor-driven system that repeats the process, and the manure pumped up from the livestock barn and supplied to the starting end of each manure drying bed 1 is sequentially sent to the end of the manure drying bed 1 while stirring. .

That is, the raw manure sent from the livestock barn to the receiving mixing tank 20 is pumped up and supplied to the starting end of each manure drying bed 1. 5 while stirring, and adjust the deposition thickness ζ to about 10 to 15 Crn, and contact with the air in the drying house 4 for about 10 days until the moisture content is about 35 to 60%, preferably 40 to 50%. The semi-dry granules are dried until they become dry and are sent to the starting end of the manure fermentation bed 3 via the conveyance path 2.

In this case, from the viewpoint of drying efficiency, it is preferable to mix dry manure into the fresh manure in the receiving mixing tank 20 to adjust the moisture content to 70 to 90%, preferably about 80%.

In the figure, reference numeral 6 denotes a reversing agitation conveyor that can freely run along the front and back of the manure fermentation bed 3, and a trolley 9 that travels back and forth along the rails 8 at the upper ends of the bars 7 on both sides of the manure fermentation bed 3, and a moving gear 10 from the trolley 9. The stirring drum 11 is movable up and down, and a plurality of stirring blades 12 are protruded from the outer peripheral surface of the stirring drum 11 in the circumferential direction.

The stirring blades 12 are formed into a substantially arc shape with the central part gradually rising from the peripheral parts, and the central parts of adjacent stirring blades 12 are joined together. Scoop up the excrement and urine in the central part 14,
As the transporter kicks out toward the rear in the direction of travel, it gathers the excrement and urine toward the terminal end.

The semi-dry manure with a moisture content of about 35 to 60 parts, which is sequentially deposited on the starting end of the manure fermentation bed 3 by the conveyance path 2, is adjusted to a deposition thickness of about 1.3 m by the turning and stirring conveyor 6. At the same time, sufficient oxygen is supplied inside by the stirring of the stirring drum 11, and self-fermentation occurs at 50 to 70°C.

In this case, the heat of the manure due to self-fermentation is retained within the manure deposited to a thickness of about 1.3 m, promoting the drying of the manure, and the moisture content increases by 15 to 15 days in 10 to 25 days.
25%, and in this state, the discharge section 1 at the rear end of the manure fermentation bed 3
5 and used as dry manure fertilizer.

Here, as shown in FIG. 3, the stirring conveyor 6 moves from the terminal end to the starting end of the manure fermentation bed 3 when the stirring drum 11 is lowered, and the stirring drum 11 rotates forward in the direction of movement of the cart 9. The stirring drum 11 moves to the starting end while stirring the excrement and at the same time scrapes the excrement to the terminal end, and when returning from the starting end to the terminal end, the stirring drum 11 rises and returns to the terminal end while being away from the excrement, repeating a reciprocating operation. Then, the excrement sent from the excrement drying bed 1 through the conveyance path 2 is fermented and dried and sequentially transferred to the discharge section 15 at the end of the excrement fermentation bed 3 as shown by arrow A in FIG. 3.

In this case, in order to supply oxygen to the entire excrement and perform fermentation and drying, it is sufficient to turn around once a day and reciprocate six stirring conveyors, for example, by a motor drive system.

In addition, part of the heat of the manure that self-heats in the manure fermentation bed 3 is released into the drying house 4, and this heat is used to feed the manure and urine drying bed 1.
It is possible to accelerate the drying of excrement and urine.

The reason why multiple excreta drying beds 1 are provided here is that although a large area of excrement drying beds is required to process a large amount of excrement, it is possible to use a single excrement drying bed 5. If this is to be done, it is necessary to form a long span drying house 4 with no pillars in the middle.

However, if, for example, the manure of 500 cows (20 tons per day) is to be processed with a pile thickness of 10 to 15 degrees and a retention period of 10 days, a manure drying bed 1 of approximately 2,500 m is required, which has this area. It is impossible to form the drying house 4 without intermediate pillars.

In addition, an agitation conveyor 5 that runs along the top surface of the excrement drying bed 1
If the width of the excrement drying bed 1 becomes too wide, the device becomes too large-scale and causes trouble in running and stirring, making it practically unusable.

Therefore, in the present invention, by providing a plurality of excrement drying beds 1, the area of each excrement drying bed 1 can be reduced to 1.
It is possible to make the width of each excrement drying bed 1 narrow (for example, about 6 m), and as a result, it is possible to erect a whole pillar between the excrement drying beds 1 and the excrement drying beds 1 in the drying house 4. Furthermore, since the width of the excrement drying bed 1 is narrow, the agitation conveyor 5 can be made small.

In this case, the manure from a plurality of manure dryers 1 is sent to the manure fermentation bed 3.

This manure fermentation bed 3 is deeper than the manure drying bed 1 in order to retain heat inside the manure and to enable one manure fermentation bed 3 to cover the manure in a plurality of manure drying beds 1. ing.

As a result, it is only necessary to provide one manure fermentation bed 3 corresponding to the plurality of manure drying beds 1 which require a large area.
Fermentation and drying can be effectively promoted, and the excrement and urine fermentation bed 3 occupies a much smaller area than the area occupied by the excrement and urine drying bed.

In the embodiment shown in the figure, a plurality of excrement drying beds 1 and excrement fermentation beds 3 are arranged side by side, and by doing so,
The length of the drying house 4 will not become too long.

In the figure, reference numeral 16 denotes an aeration pipe, and when fermentation is difficult, such as during the rainy season, air is diffused from the aeration pipe 16 to promote fermentation.

Further, the unloading section 15 has a slope so that vehicles can enter therein.

In the figure, 17 is the air supply gallery, 18 is the ventilation fan, and 19
is a rail for running the stirring conveyor 50.

As described above, the present invention provides a transport path at the end of a plurality of excrement and urine drying beds. Since the manure fermentation bed is placed in a continuous position at the end of the conveyance path, the manure can be dried to some extent and sent to the manure fermentation bed in a semi-dry granular state. This method has the advantage that raw manure can be dry-fermented without any contamination such as straw or wheat.

Furthermore, a large amount of manure can be dried using multiple manure drying beds, and a large amount of manure that has been dried into semi-dry granules is supplied to the manure fermentation bed, which is deeper than the manure drying bed, for fermentation. Providing a single excrement fermentation bed that occupies a much smaller area than multiple excrement drying beds for each excrement drying bed is sufficient to effectively and sufficiently ferment and dry the excreta. Compared to a system in which separate excrement fermentation beds are connected at the end of each excrement drying bed, the space required is narrower and the overall structure of the apparatus is simpler.

Furthermore, since a plurality of excrement drying beds are provided, the area of each excrement drying bed can be minimized, and the width of each excrement drying bed can be made narrower.As a result, the inside of the drying house can be Pillars can be built between the excrement drying bed and the excrement drying bed.5 Furthermore, since the width of the excrement drying bed is narrow, the agitation conveyor can be small. A manure drying bed and a manure fermentation bed are installed side by side.
Since the end of each excrement drying bed and the beginning of the excrement fermentation bed are connected in a continuous manner by a conveyance path arranged perpendicular to the excrement drying bed and the excrement fermentation bed, the entire excrement processing equipment is not very long. It has the advantage that it can be laid out in a rectangular shape that is close to a square when viewed from the top, and as a result it can be constructed without taking up a large space.

[Brief explanation of drawings]

Fig. 1 is a schematic top view of an embodiment of the present invention, Fig. 2 is a front view of the same, Fig. 3 is a sectional view of the excrement fermentation bed of the above, and Figs. 1 is a front view and a side view, 1 is a manure drying bed, 2 is a conveyance path, and 3 is a manure fermentation bed.

Claims (1)

[Claims] 1. A plurality of manure drying beds arranged in parallel and a manure fermentation bed deeper than the manure drying beds are installed in parallel, and the end of each manure drying bed and the beginning of the manure fermentation bed are connected to the manure drying bed or the manure fermentation bed. A livestock manure processing apparatus characterized in that the apparatus is continuous with a conveyance path disposed perpendicular to the transport path.