JP2011224449A - Solid-liquid separation treatment structure for livestock excreta or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solid-liquid separation treatment structures for livestock excreta or the like by which the time required for composting a solid portion prepared by separating the solid portion such as feces and the bed of straw from moisture such as urine is shortened, environment for prompting composting is formed and penetration of contaminated water into the ground is prevented to prevent occurrence of environmental pollution and foreign odor.SOLUTION: A floor part 2 constituting a structure body 1 is tilted downward toward the tip to form a steep slope 2c having inclination angle in the first half side larger than that in the second half side from the middle. Right and left side wall parts 3, 3 are erected in both side edges of the floor part 2. A front wall part 4 is erected from the tip of a floor part 2 while being connected to respective side wall parts 3, 3. A plurality of liquid flow-out holes 7 are formed on the front wall part 4 and can be opened or closed by a shutter 8. A liquid storage tank 9 is mounted on a ground outside the structure body 1 while being positioned below the liquid flow-out port 7.

Description

In the present invention, livestock manure discharged in large amounts from a barn such as a cattle barn and a litter mixed with this (hereinafter simply referred to as manure) are separated into water and solids to effectively use the water and solids. The present invention also relates to a solid-liquid separation processing structure such as livestock manure which prevents environmental pollution.

  Conventionally, for example, a facility for processing cattle manure has been constructed by placing a compost made of concrete flat on the ground adjacent to the barn approximately horizontally, and the barn with a work machine such as a conveyor device or a wheel loader. The manure and so on inside is carried on a compost board, piled up, and corroded for composting.

  However, since the conventional compost board does not have a jetty portion at the outer edge, there is a problem that moisture such as urine flows out from accumulated manure and the like and permeates into the ground. In addition, when rainwater is mixed with manure, the fluidity increases and it flows down to the lowland side, causing a situation where it flows into the river and pollutes it, and it becomes a source of bad odor, and E. coli contaminates the river water and surrounding soil. A situation was invited. Furthermore, a very serious situation has occurred in which contaminated water penetrates into the ground and mixes with groundwater, contaminating domestic water in urban areas several kilometers away.

  Therefore, although management standards have been established for the disposal of waste such as manure, there is a problem that it cannot be fully implemented due to equipment costs, work burdens, etc., so dumping directly on pasture is also performed. It flows out to the lowland side when it rains and causes river and groundwater contamination. However, the solution of the above-mentioned problems of water pollution and soil pollution has a great influence on health and the environment, and more effective solution means are required.

Therefore, the applicant of the present application is that the base end bank surface located near the waste discharge port of the barn, the front end bank surface facing the base end bank surface, and the upward inclined surface from the base end bank surface toward the front end bank surface The waste storage part is formed by a structure having a bottom surface and side levee surfaces on both sides, and the overflowing soup storage part provided in a concave shape on the ground is formed by a storage body having a bottom surface and side surfaces. A utility model was registered as a device consisting of a structure for treating wastes such as livestock excreta, in which the overflowing juice storage part and the waste storage part are communicated with each other through a communication path provided in a concave shape.

Registered Utility Model No. 3060209

  The above-mentioned conventional technology has an excellent effect that wastes such as manure are processed into fully-ripened compost, so that sewage juice such as urine is prevented from polluting the surrounding environment, and can be installed at low construction costs. However, there is an unsolved problem in that it takes days to make the solid matter a fully-ripened compost.

  The present invention has been made in view of the above-mentioned unsolved problems of the prior art, and reduces the time required for composting solids by separating solids such as feces and litter and water such as urine. Livestock that forms an environment that promotes composting, reliably prevents contaminated water from penetrating underground, prevents environmental pollution and off-flavors, and also uses solids again as a laying material An object is to provide a solid-liquid separation processing structure such as manure.

  The means of the present invention configured to solve the above-described problem is connected to a floor portion inclined downward toward the tip, left and right lateral wall portions standing from both side edges of the floor portion, and the left and right lateral wall portions. And a front wall portion standing up from the front end of the floor portion, the structure main body having an open rear end side, a plurality of liquid outflow holes formed in the front wall portion, and a position below the liquid outflow holes. And a liquid storage tank disposed outside the structure body.

  And it is good for the said floor part to set a large inclination | tilt angle toward the said front wall part from the approximate middle of the downward inclination direction.

Further, the floor portion may be formed in a trapezoidal shape whose width is narrowed toward the tip.

  Moreover, it is preferable that the floor portion is configured to be able to dissipate heat.

  Furthermore, it is preferable that the lateral wall portion is configured to be able to dissipate heat.

  The liquid outflow hole may be configured to be openable and closable by a shutter provided in the structure body.

Since the present invention is configured as described above, the following effects can be obtained.
(1) The floor portion for depositing manure and the like is inclined downward toward the tip, solid matter such as manure is deposited on the floor portion, and the water separated from the solid matter is collected in the liquid storage tank, Solid matter is corroded and composted while it is deposited, and moisture can be used effectively as a fertilizer to be applied to the field.
(2) Since water such as excreta is collected by flowing into the liquid storage tank from the structure body having the floor portion and the lateral wall portion, the situation where water penetrates into the ground and pollutes rivers and groundwater. It can be surely prevented.
(3) Since the inclined floor portion has a steep slope with a large inclination angle from the substantially middle to the first half side, the work of moving the manure and the like is unnecessary due to the flow of the manure and so It is excellent, and even if the liquid outflow hole is gradually clogged with the solid content, the water flowability can be maintained.
(4) The floor is formed in a trapezoidal shape with a narrower width toward the tip, and the water separated from the solid content is aggregated and flowed down, so that the liquid outflow hole is clogged with the solid content. It can be prevented as much as possible by the water flow, and the work interval for maintaining the flowability can be lengthened.
(5) Since the floor portion is configured to be able to dissipate heat, it is possible to prevent a situation in which accumulated manure and the like are frozen and fluidity is lost, and by heating the solid content, microorganisms can be activated even in winter so that the solid content Composting can be promoted. Further, it can be reused as a bedding material by heating the solid content to reduce the water content.
(6) The horizontal wall is configured to dissipate heat so that feces and urine can be heated not only from below but also from both the left and right sides. In addition, it is possible to promote the composting of solids by activating microorganisms even in winter. In addition, manure and the like can be quickly dried and regenerated into a litter.
(7) Since the liquid outflow hole can be opened and closed by a shutter provided in the structure body, the outflow of water is controlled according to the moisture content of manure, etc. and the climate such as heavy rain or dryness, and the moisture content of solids The rate can be adjusted according to the use of composting and bedding.

1 to 3 relate to a first embodiment of the present invention, and FIG. 1 is an external perspective view of a solid-liquid separation processing structure such as livestock manure. It is a top view of solid-liquid separation processing structures, such as livestock manure. It is the III-III arrow direction sectional drawing in FIG. 4 and 5 relate to the second embodiment, and FIG. 5 is an external perspective view of a solid-liquid separation processing structure such as livestock manure. It is a top view of solid-liquid separation processing structures, such as livestock manure.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3 show a first embodiment. In the figure, 1 is a concrete structure main body constituting a solid-liquid separation processing structure such as livestock manure, 2 is a floor portion constituting the structure main body 1, and the floor portion 2 extends from the front end 2A to the rear end 2B. It is formed in a rectangle having a length up to about 8 m and a width of about 4 m. Then, the floor portion 2 is inclined forwardly downward at an angle of about 10 degrees from the rear end 2B toward the front end 2A, and the front end 2A side is inclined at a large inclination angle θ of about 20 degrees from approximately the middle, thereby The side is a steep slope 2C, and the latter half is a gentle slope 2D.

  3 and 3 are left and right lateral wall portions standing on both side edges of the floor portion 2, and each lateral wall portion 3 has a front end side 3A set to a height of about 2 m and a rear end side 3B set to a height of about 1,5 m. is there. Reference numeral 4 denotes a front wall portion, and the front wall portion 4 is connected to the distal end side 3A of the lateral wall portions 3 and 3 and stands upright from the distal end 2A of the floor portion 2 at the same height as the lateral wall portion 3.

  Thus, the structure main body 1 is configured in a substantially U-shaped rectangle whose back is opened by the floor portion 2, the left and right lateral wall portions 3, 3 and the front wall portion 4. A floor heating element 5 made of heating wire is disposed in the floor 2, and a wall heating element 6 made of heating wire is disposed in the left and right lateral wall portions 3, 3, respectively. At the same time or selectively energized to generate heat, the floor 2 and both lateral walls 3 and 3 of the structure body 1 radiate heat.

  7, 7,... Indicate a plurality of liquid outflow holes formed on substantially the entire surface extending from the lower end of the front wall portion 4 to the upper side, and each liquid outflow hole 7 allows only urine and rainwater to flow therethrough. The hole diameter is set to about 10 mm. Here, the hole diameter of the liquid outflow hole 7 was set to about 10 mm because the solid content of feces and bedding remains on the structure body 1 and only the water is allowed to flow out to allow the water and the solid content to flow. In consideration of the fact that it is surely separated, if it is smaller than 10 mm, it will be clogged at an early stage, and if it is larger than 10 mm, there is a high possibility that the solid content will flow out together with moisture.

Further, the liquid outflow hole 7 is formed on the substantially entire surface of the front wall portion 4 because the manure A and the like that are brought in daily from the barn and deposited on the floor portion 2 has a lower solid content as the deposition amount increases. Becomes compressed, and the fluidity of moisture gradually deteriorates. Therefore, the liquid outflow hole 7 is also formed on the upper side, so that the water can flow out from the manure A or the like on the upper side accumulated in a mountain shape. Thereby, moisture can be quickly discharged from the structure body 1.

  Reference numeral 8 denotes a shutter made of a horizontally long rectangular plate provided on the outer surface of the front wall portion 4 so as to be movable up and down. The shutter 8 is provided on the front wall 4 by a bracket (not shown) so that it can be moved up and down, and by opening and closing all or part of the liquid outflow holes 7, 7,. The amount of outflow is controlled and the moisture content of the solid content is adjusted.

  9 is an outer side of the structure main body 1 and is located below the liquid outflow holes 7, 7,..., And is embedded in the ground B. The liquid storage tank 9 has a bottom plate 9A and four wall surfaces. It is formed in a box shape with the top opened by the plate 9B. In addition, as shown by a broken line in FIG. 3, a lid 10 is provided at the upper end of the liquid storage tank 9 with a gap through which water flows between the front wall portion 4 to prevent a human or livestock from falling down. And may be designed to be safe.

  The solid-liquid separation processing structure such as livestock manure according to the present embodiment has the above-described configuration, and the operation thereof will be described next. The manure A and the like discharged from the barn is carried and deposited on the floor 2 of the structure body 1 by a working machine such as a wheel loader. Since the floor portion 2 has an inclined surface that descends forward toward the front end 2A, fluid-containing manure and the like A containing water gradually flows toward the front end 2A and stays on the front wall portion 4 side. It will be in the state. During this time, the water of manure or the like A flows out from the solid content and is separated and flows into the liquid storage tank 9 through the liquid outflow hole 7 and stored therein.

  In addition, since the floor portion 2 is formed with the steep slope 2C on the first half side with respect to the gentle slope 2D on the second half side, solid content of manure and the like A gradually accumulates on the floor portion 2, and the fluidity of moisture is impaired. Even if it comes, water is surely separated from the solid content by flowing down to the front end side 2A.

  The solid content on the floor 2 accumulates feces and urine A that is sequentially carried on it, so that the inside is kept warm, decomposes due to the activation of microorganisms, further increases in temperature, and promotes corrosion. Be composted. At this time, by energizing the heating wire in accordance with the level of the outside air temperature and dissipating heat from the floor heating element 5 and, if necessary, the wall heating element 6, the temperature of the solid content can be increased to promote decomposition and fermentation. it can.

Further, by dissipating heat from the floor heating element 5 and the wall heating element 6 even in the cold season, it is possible to prevent manure and the like A from freezing and compost. In these cases, the heat radiation temperature of the floor portion 2 and the horizontal wall portion 3 is about 35 ° C., but may be adjusted by appropriately raising and lowering the temperature according to the outside air temperature.

  In addition, the manure etc. A when it is carried into the floor 2 has a water content of about 82 to 92%, but by separating the water and the solid content as described above, the water content of the solid content can be reduced. Generation | occurrence | production of methane gas can be suppressed by making it reduce. When water is washed away from manure or the like A and the water content is reduced to about 70%, the microorganisms are activated and the solid content is suitable for natural fermentation and composting.

On the other hand, when the water content of manure A or the like is as low as about 50% or less, drying can be promoted by heat radiation from the floor portion 2 or the lateral wall portion 3, and the solid content can be regenerated into the litter again. Thus, since the floor 2 and the side wall 3 are configured to be able to dissipate heat, it is possible to efficiently compost the manure etc. A or to regenerate it as a bedding, and to effectively use the manure A etc. Can be planned.

In addition to the above cases, the water content of manure and other A from the physical condition of livestock varies day by day, and the yearly weather also has periods of heavy rain and dryness, and the weather conditions vary from year to year. It is important to adjust the water content of manure A and the like deposited in the structure body 1. Therefore, a shutter 8 that opens and closes the liquid outflow holes 7, 7,... Is provided in the structure main body 1, and all or part of the liquid outflow holes 7 are opened and closed to control the outflow amount of water, so The water content of A can be adjusted.

4 and 5 show a second embodiment. In addition, in this Embodiment, the same code | symbol is attached | subjected and used for the component same as the component of 1st Embodiment, and the description is abbreviate | omitted. In the figure, 11 is a structure body constituting a solid-liquid separation structure for livestock manure, 12 is a floor portion constituting the structure body 11, and the floor portion 12 has a length from a front end 12A to a rear end 12B. Is set to about 8 m, the width of the tip 12A is set to about 3 m, and the width of the rear end 12B is set to about 4 m, thereby forming a substantially trapezoidal shape that is tapered from the rear end 12B toward the tip 12A.
The floor 12 is inclined forward and downward at an angle of about 10 degrees from the rear end 12B toward the front end 12A, and the front end 12A side is inclined at a large inclination angle θ of about 20 degrees from the middle in the length direction. Accordingly, the configuration in which the first half side is the steep slope 12C and the second half side is the gentle slope 12D is the same as that of the first embodiment.

  13 and 13 are left and right lateral wall portions standing on both side edges of the floor portion 12. Each lateral wall portion 13 has a front end side 13A set to a height of about 2 m and a rear end side 13B set to a height of about 1.5 m. is there. Reference numeral 14 denotes a front wall portion, and the front wall portion 14 is connected to the distal end side 13A of the lateral wall portions 13 and 13 and stands upright from the distal end 12A of the floor portion 12 at the same height as the lateral wall portion 13.

  Thus, the structure main body 11 is configured in a substantially trapezoidal shape whose rear is opened by the floor 12, the left and right lateral wall portions 13 and 13, and the front wall portion 14. A floor heating element 5 made of heating wire is disposed in the floor 12, and a wall heating element 6 made of heating wire is disposed in the left and right lateral wall portions 13 and 13, respectively. 6 is simultaneously or selectively energized to generate heat so that the floor portion 12 and both lateral wall portions 13 and 13 of the structure main body 11 dissipate heat.

  15, 15,... Indicate a plurality of liquid outflow holes formed on substantially the entire surface extending from the lower end to the upper side of the front wall portion 14, so that only the urine and rainwater moisture flows through each liquid outflow hole 15. The hole diameter is set to about 10 mm. The significance of the value of the hole diameter is the same as in the first embodiment.

  Reference numeral 16 denotes a liquid storage tank which is located at the front end of the structure body 11 and is embedded in the ground B. The liquid storage tank 16 is configured as a rectangular parallelepiped whose upper side is open from a square floor plate 16A and four wall plates 16B. It is.

  The structure for solid-liquid separation of livestock manure according to the present embodiment is composed of the above-described structure, and the manure is separated into water and solids for composting, and also prevents soil and river contamination. The effect is the same as in the first embodiment. The feature of the present embodiment is that the structure main body 11 is tapered toward the front wall portion 14 at the tip, thereby concentrating moisture in the structure main body 11 toward the tip side. There is. Thereby, even if the fluidity of the water on the floor portion 12 starts to decrease due to the accumulation of the solid content, the solid content and the water content can be separated by ensuring that the water flows for the time being.

In the first embodiment, the length of the floor portion 2 is set to about 8 m and the width is set to about 4 m. In the second embodiment, the length of the floor portion is set to about 8 m, and the width is the tip 2A side. Is set to about 3 m, and the rear end 2B side is set to about 4 m. However, these numbers are merely examples, and the size of the structure body can be appropriately determined according to the number of livestock to be bred.

DESCRIPTION OF SYMBOLS 1,11 Structure main body 2,12 Floor part 2A, 12A Front end 2B, 12B Rear end 2C, 12C Steep slope 3,13 Horizontal wall part 4,14 Front wall part 7,15 Liquid outflow hole 8 Shutter 9,16 Liquid storage tank

Claims (6)

  A floor portion inclined downward toward the tip, left and right lateral wall portions standing from both side edges of the floor portion, and a front wall portion connected to the left and right lateral wall portions and standing from the tip of the floor portion. A structure main body having an open rear end side, a plurality of liquid outflow holes formed in the front wall portion, and a liquid storage tank located below the liquid outflow hole and disposed outside the structure main body. Solid-liquid separation processing structure such as livestock excreta formed.   The solid-liquid separation processing structure for livestock excrement or the like according to claim 1, wherein the floor portion has a large inclination angle toward the front wall portion from substantially the middle in the downward inclination direction. The solid-liquid separation processing structure for livestock excrement or the like according to claim 1, wherein the floor portion is formed in a trapezoidal shape whose width is narrowed toward the tip.   2. The solid-liquid separation processing structure for livestock excrement or the like according to claim 1, wherein the floor portion is configured to be able to dissipate heat.   The solid-liquid separation processing structure for livestock excrement or the like according to claim 1, wherein the lateral wall portion is configured to be able to dissipate heat.   The solid-liquid separation processing structure for livestock excrement or the like according to claim 1, wherein the liquid outflow hole is configured to be opened and closed by a shutter provided in the structure main body.

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