KR101553511B1 - Fermentation equipment of animals-excretions and method therefor - Google Patents

Abstract

The present invention relates to a livestock manure composting treatment apparatus and a treatment method. More specifically, the present invention comprises: a sterilizing part, a fermenting part, and a complete maturing part in a tubular type in which a transferring screw is installed therein, thereby continuously carrying out processes and shortening duration of the process.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a fermentation equipment for animals,

The present invention relates to an apparatus and a method for treating an animal manure fertilizer, and more particularly, to an apparatus and method for treating an animal manure including a sterilizing unit, a fermentation unit, and a ripening unit constituted by a tubular type having a transfer screw therein, The present invention relates to an apparatus and a method for treating a livestock waste manure by which the thermal efficiency is improved and the processing time can be shortened.

In general, livestock manure is a valuable resource for improving the soil chemical properties by increasing the intelligence of agricultural land in Korea which is low in organic matter and aged by soil acidification when used in soil that is made by cultivating high quality compost or livestock.

However, when the livestock manure is discharged without being treated as livestock wastewater, it is a high-concentration pollutant with a higher pollutant load than the domestic sewage. Therefore, not only is it a source of water pollution, but also facilities and processing costs Therefore, it is difficult.

In particular, when comparing pollutant loadings based on BOD, livelihood wastewater is 200 to 200 mg per liter, whereas livestock wastewater is 1 to 20 million mg (ppm), which is 50 to 100 times higher than domestic wastewater.

As a result, there is a growing concern about environmental pollution. Nowadays, there is a tendency to maintain an environmentally friendly livestock industry with its own recycling facilities so that livestock manure can be recycled as valuable resources by maximizing composting and liquefaction.

For example, to date, the most common method in livestock farming is using sawdust mix composting.

However, since the above-described method has only to depend on the storage-liquefaction technique in the mixed state of manure in each farm, it is difficult to remove the treated farmland and odor from the mixed manure, to cause contamination of groundwater, and to use for a long time have.

In addition, the increase in the price of sawdust, which is used as a moisture control material in the composting process of the livestock compost, has been a problem in the efficiency of the livestock farmers, such as lowering the price and quality competitiveness.

Referring to FIG. 4, in order to solve such a problem, Korean Patent No. 10-0479836 discloses a method in which the collected livestock manures are fed into a rectifier to remove impurities and transferred to and stored in a manure storage tank, And the sterilization and deodorization are carried out by using ozone (O 3) in the manure storage tank, the method comprising the steps of: feeding the livestock manure stored in the manure storage tank (5) to the first feed motor Sterilized fermentation tank 13, mixing with an appropriate amount of microorganisms, mixing and stirring the mixture for at least 2 hours while maintaining the internal temperature at 100 ° C or higher, and thereby killing the bacteria; Sterilized fermentation tank 13 for more than 2 hours, then the heat supply is stopped, the fermentation is carried out at 53 to 57 ° C for at least 10 hours in the self-heating, oxygen is supplied for cultivation and fermentation of microorganisms, The second deodorizing tower 9b, and deodorizing the deodorizing process; Transferring the livestock manure primary fermented in the mixing / sterilizing fermentation tank (13) to a centrifugal separator (27) and separating into a solid phase and a liquid phase; The solid-phase livestock manure separated from the centrifugal separator (27) is transferred to the solid-state fermentation tank (30), and the heat is supplied at 53 to 57 ° C for 2 hours a day and intermittently for 5 minutes at 20 minutes interval in the air tank Drying with an animal manure having a moisture content of 23 to 27% through mature fermentation and drying for 5 days while oxygen is supplied by aeration, and the odor generated during fermentation is drawn into the third deodorization tower 9c and deodorized; Feeding the livestock manure fermented in the solid-state fermentation tank 30 to the pulverizer 37 and crushing the pulverized material, and packaging the pulverized feedstock through the solid fertilizer packing machine 39; The liquid livestock manure separated from the centrifugal separator 27 is transferred to the liquid matured fermentation tank 41 and is supplied with heat supply at 53 to 57 ° C and oxygen supply by intermittent aeration for 20 minutes at 20 minutes intervals in the air tank 19 Agitating and fermenting for 7 days by self-fermentation heat and heat supply using microorganisms; Feeding the liquid fermented livestock manure into the cooling tank 45 through the pump 44 to cool the livestock manure and packing the liquid fertilizer filtered by the filter 47 into the liquid fertilizer packing machine 49 A fertilizer treatment method of an animal manure is disclosed.

However, since the steps are intermittently performed, the total process time is long and the process cost is high. In addition, since it is opened, it is required to continuously supply heat, so there is a large heat loss, and a sprinkling process is involved for deodorization. Since livestock manure is separated by solid-liquid separation by centrifugal separation method, It is necessary to use antifoaming agent and it is difficult to meet the desired water content.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a sterilizing unit, a fermentation unit and a ripening unit of a tubular type having a transfer screw therein, The present invention also provides an apparatus and a method for treating a livestock waste manure by which the thermal efficiency can be improved and the processing time can be shortened.

Further, the object of the present invention is to use a defoaming agent in order to remove a large amount of foam when the solid-liquid separation of livestock manure is performed by the conventional centrifugal separation method, by using the solid-liquid separating portion comprising a conveying belt made of a rotating cylinder and a mesh member And to solve the problem that it is difficult to control the moisture content of the livestock manure in a solid-liquid separated sludge state, and an object of the present invention is to provide a livestock waste manure treatment apparatus and a treatment method.

It is another object of the present invention to provide a sterilization apparatus and a sterilization apparatus which are capable of minimizing the reduction in sterilization and cooling efficiency by simplifying facilities and performing continuous sterilization and cooling in one sterilization unit, A fertilizer treatment apparatus and a treatment method.

The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided an apparatus for fertilizing livestock manure, comprising: a solid-liquid separation unit for performing solid-liquid separation of an animal manure; A sterilizing pipe in the form of a cylinder for receiving the solid-liquid separated sludge-state livestock manure, a conveying screw installed in the sterilizing pipe for feeding the livestock manure, a heater installed in the heating section provided in the sterilizing tube, A sterilizing unit installed in a cooling zone provided behind the heating zone to cool the sterilized livestock manure; A fermentation tube in the form of a cylinder which receives and receives sterilized and cooled livestock manure from the sterilizing section; a feed screw installed in the fermentation tube for feeding the livestock manure; At least one fermentation unit including an oxygen supply unit for supplying the fermentation tube and a microorganism input unit installed at one side of the fermentation tube for inputting microorganisms; And a cooler for cooling the fermented livestock manure, wherein the fermented livestock manure is a fermented livestock wastewater. The fermented livestock manure includes fermented livestock manure, Wow; And a deodorizing unit provided in the sterilizing tube, the fermentation tube or the ripening unit for discharging and purifying the gas.

The solid-liquid separating unit of the apparatus for treatment of fertilizer for livestock manure waste according to the present invention comprises a pair of rotary cylinders for pressing the livestock manure, and a conveyor consisting of a mesh member disposed below the rotary cylinder and selectively passing only liquid- And a second receiving portion provided at a lower side of the conveyor belt to receive separated liquid livestock manure and a second receiving portion provided at one side of the conveyor belt to receive the separated sludge livestock manure.

The sterilization tube of the livestock manure disposal apparatus according to the present invention comprises a first tube portion provided with an inlet port, a second tube portion provided with an outlet port, and a heat insulating portion disposed between the first tube portion and the second tube portion, And the heating section and the cooling section are provided at the first tube portion and the second tube portion, respectively.

According to another aspect of the present invention, there is provided a method for fertilizing livestock manure, comprising the steps of: S1 preparing a sludge livestock manure having a moisture content of 20 to 40% by solid-liquid separation in a solid-liquid separation unit; The sterilized livestock in the sludge state as solidified liquid is supplied to a sterilizing tube, sterilized by heating at 100 to 150 ° C in the heater, the sterilized livestock manure is cooled by 50 to 70 ° C by operating the cooler, A step S2 in which sterilization and cooling are sequentially performed while the livestock manure is transferred by the installed transfer screw; The fermented livestock is fermented by supplying the sterilized and cooled livestock manure, microorganism and oxygen to the fermentation tube with a closed structure, and the temperature of the livestock manure is maintained at 40 to 60 ° C by fermentation heat without supplying any heat And a step S3 of fermenting for 2 to 4 days in the state of step S1.

The method further includes a step S4 of cooling the fermented livestock manure fermented by the fermentation unit to 20 to 30 占 폚 while discharging the livestock manure, and discharging the livestock manure during discharging.

According to the present invention, since the sterilizing unit, the fermentation unit and the ripening unit are constituted by the tubular type in which the feed screw is installed, the respective processes can be continuously performed to shorten the process time and the thermal efficiency can be improved The time can be shortened.

Further, according to the present invention, by using a solid-liquid separating section comprising a rotating cylinder and a conveying belt made of a mesh member, a large amount of foaming occurs when the liquid manure is subjected to solid-liquid separation in the conventional centrifugal separation method, And the problem of difficulty in controlling the water content of the livestock manure in a state of solid-liquid separated sludge can be solved.

Further, according to the present invention, it is possible to simplify the facilities by continuously performing high-temperature sterilization and cooling in one sterilizing unit, and to provide an effect that sterilization and cooling efficiency can be minimized by providing a heat- have.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view schematically showing constituent elements constituting an apparatus for treating an animal manure fertilizer according to the present invention; Fig.
2 is a schematic view showing the components of the solid-liquid separator according to the present invention.
3 is a cross-sectional view showing components of a sterilizing unit and a fermentation unit according to the present invention.
4 is a diagram showing a fertilizer treatment apparatus of a conventional livestock manure.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the drawings, like reference numerals refer to like elements throughout. In the drawings, the same reference numerals are used to designate the same or similar components.

FIG. 1 is a view schematically showing constituent elements constituting an apparatus for fertilizing an animal manure waste according to the present invention, FIG. 2 is a view schematically showing constituent elements of a solid-liquid separation unit according to the present invention, Sectional view showing constituent elements of the sterilizing part and the fermentation part according to the present invention.

1 to 3, an apparatus for treating an animal manure fertilizer according to the present invention may include a solid-liquid separating unit, a sterilizing unit, a fermentation unit, a ripening unit, and a deodorizing unit.

Specifically, the apparatus 100 for treating an animal manure fertilizer according to the present invention comprises a solid-liquid separation unit 110 for solid-liquid separation of an animal manure, a cylindrical sterilizing pipe 131 for receiving the solid-liquid separated sludge- A transfer screw 136 installed in the sterilization pipe 131 for transferring the livestock manure, a heater 137 installed in the heating section provided in the sterilization pipe 131 and sterilizing the same, And a cooler (139) installed in the provided cooling section to cool the sterilized livestock manure; and a cylindrical fermentation unit for receiving and receiving sterilized and cooled livestock manure from the sterilizing unit (130) A transfer screw 153 installed in the fermentation pipe 151 for transferring the animal manure and an oxygen supply unit 155 installed at a predetermined interval on the outer circumferential surface of the fermentation pipe 151 for supplying oxygen, The fermentation tube 151, At least one fermentation unit 150 including a microorganism input unit 157 installed at one side for inputting microorganisms and a tubular ripening tank 150 for receiving and receiving the livestock manure fermented from the fermentation unit 150 (Not shown) for cooling the fermented livestock manure, a transfer screw (not shown) installed in the raw tube for transferring the livestock manure, and a cooler (not shown) for cooling the fermented livestock manure, And a deodorization unit 180 provided in the fermentation pipe 131, the fermentation pipe 151 or the ripened portion 170 to discharge and purify the gas.

1 and 2, the solid-liquid separator 110 has a problem that a large amount of foam is generated when solid-liquid separation of livestock manure is performed by a conventional centrifugal separation method, a defoaming agent must be used to remove the foam, Liquid separation is performed by a compression method in order to solve the problem that it is difficult to control the water content of the livestock manure in the state.

The solid-liquid separator 110 mainly comprises a pair of rotating cylinders 111 for pressurizing the livestock manure, a conveyor belt 113 composed of a net member for selectively passing only the liquid livestock manure, (115, 117).

The livestock manure supplied to the pair of rotating cylinders 111 is compressed and dropped to the conveyor belt 113. Since the conveyor belt 113 is made of a net member, the liquid livestock manure is directly conveyed to the conveyor belt 113 And the sludge livestock manure moves on the conveyor belt 113 and is accommodated in the second accommodating portion 117 provided on one side of the conveyor belt.

The moisture content of the sludge-form livestock manure contained in the second receiving part 117 is controlled to 20 to 40%. At this time, the water content can be controlled by controlling the crushing strength and the rotating speed of the rotary cylinder 111.

Also, since the solid-liquid separator 110 of the present invention uses the movable conveyor belt 113, the solid-liquid separator 110 can be continuously operated.

The separated livestock manure is stored in the raw material tank T and then transferred to the sterilizing unit 130 using the pump P.

The sterilizing unit 130 can be divided into a heating zone in which harmful bacteria are sterilized or sterilized as described above and a cooling zone in which sterilized livestock manure is cooled.

The heater 137 is installed in the heating section. The heater 137 may be an electric heating coil wound on the outer circumferential surface of the sterilizing tube 131, but is not limited thereto.

The cooler 139 is installed in the cooling section. The cooler 139 may be a heat exchanger circulating the coolant and wound around the outer surface of the sterilizing tube 131, but is not limited thereto.

The sterilizing tube 131 includes a first tube portion 133 provided with an inlet port, a second tube portion 135 provided with a discharge port, and a second tube portion 135 disposed between the first tube portion 133 and the second tube portion 135 And a heat insulating portion 134 for blocking heat conduction. The heating portion and the cooling portion are provided in the first tube portion 133 and the second tube portion 135, respectively.

The first and second pipe portions 133 and 135 may be made of a metal material and the heat insulating portion 134 is not particularly limited as long as it is made of a material having a thermal conductivity lower than that of the first and second pipe portions 133 and 135. However, Or a combination thereof.

In the case where the total length of the sterilizing tube 131 is 20 m, the first tube portion 133 may be 5 to 8 m and the second tube portion 135 may be 8 to 12 m. The first tube portion 133 and the second tube portion 135 may have an appropriate length to block heat conduction between the first tube portion 133 and the second tube portion 135.

As described above, in the present invention, the facility can be simplified by sterilizing the first tubular portion at a high temperature and at the same time cooling the sterilized livestock manure to a temperature suitable for fermentation, and the work can be continuously performed to increase the yield. In addition, since the heat insulating portion is disposed between the first and second tube portions, it is possible to prevent the sterilization and cooling efficiency from being lowered by heat conduction, respectively.

In the fermentation unit 150, fermentation is performed by supplying the sterilized and cooled livestock manure in the sterilizing unit 130, and the fermentation unit 151 is provided with a microorganism input unit for supplying microorganisms to one side of the fermentation pipe 151, (157).

The temperature of the slurry discharged from the sterilizing unit 130 is about 60 to 70 ° C and the temperature of the slurry is lowered while being transferred from the fermentation unit 150 through the transfer screw 153. When fermentation heat is generated in the fermentation process So no separate heat supply is required. It is exemplified that fermentation is carried out while being transferred for 2 to 4 days in the fermentation unit 150, and the fermented livestock manure is about 40 to 45 ° C.

Since the fermentation unit 150 is composed of the fermentation pipe 151 having a closed structure, the oxygen supply unit 155 is disposed in the fermentation pipe 151 at predetermined intervals to supply oxygen. However, the oxygen supply unit 155 does not necessarily supply only oxygen, and nitrogen or air may be injected in some cases.

The deodorizing unit 180 is provided in the sterilizing unit 130, the fermentation unit 150, and the ripened unit 170, respectively, Carbon, AV) filter.

As described above, according to the present invention, since the sterilizing unit and the fermentation unit are constituted by the tubular type in which the transfer screw is provided therein, the respective processes can be continuously performed to shorten the processing time and the sealed structure, Can be omitted and the heat loss can be minimized.

The fermented livestock manure that has been fermented through the fermentation unit 150 has a moisture content of about 15 to 20% as it passes through the ripening unit 170, Lt; RTI ID = 0.0 > C, < / RTI >

Hereinafter, a method for treating an animal manure fertilizer according to the present invention will be described in detail. However, the same or similar components as those described above will not be described in detail.

The method of fertilizing livestock manure according to the present invention is largely divided into steps S1 to S4. Since each step is performed in a continuous process, the yield is improved.

The step S1 is a step of preparing a sludge livestock manure having a moisture content of 20 to 40% by solid-liquid separation in the solid-liquid separating unit 110. As described above, the solid-liquid separation unit using the compression method and the conveyor belt 113, (110), the conjugate separation process is simplified.

Meanwhile, in the present invention, 10 to 30 parts by weight of food sludge or septic tank sludge may be mixed with 100 parts by weight of livestock manure. In this case, as in livestock manure, the food sludge is also separated by solid-liquid separation by a compression method to make the moisture content 20 to 40%, and the livestock manure and food sludge are mixed and supplied to the sterilizing tube.

In the case of the above-mentioned food sludge, if the amount exceeds 30 parts by weight, the salt concentration becomes excessive, so that it is preferable to be within the above range.

In step S2, the livestock manure in the sludge state is supplied to the sterilizing tube 131, sterilized by heating at 100 to 150 DEG C by the heater 137, and the cooler 139 is operated to sterilize the livestock manure Is cooled to 50 to 70 캜.

Since the sterilization and cooling are sequentially performed while the livestock manure is conveyed by the conveying screw 136 installed in the sterilizing pipe 131, the time can be shortened.

The step S3 is a step of feeding the sterilized and cooled livestock manure, microorganisms and oxygen to the fermentation pipe 151 having a closed structure to ferment the livestock manure.

Here, since the fermentation tube 151 is sealed, the fermentation tube 151 can be maintained at a temperature suitable for fermentation only by the fermentation heat without supplying any additional heat, so that the thermal efficiency is excellent.

In the step S3, it is preferable that the fermentation is performed for 2 to 4 days while the temperature of the animal manure is maintained at 40 to 60 ° C.

Meanwhile, the fermentation time can be controlled through the rotation speed of the conveying screw. As shown in the figure, one fermentation tube 151 may be used, but this is merely an example. Therefore, It can be installed and used.

In step S4, the livestock manure fermented in the fermentation unit 150 is cooled while being cooled to 20 to 30 DEG C, and then discharged and packaged. The livestock manure is dried in the ripening unit 170 and dried, cooled, aged, A final deodorizing operation is performed.

After ripening is completed, the product is crushed and packed as needed.

It is to be understood that the present invention is not limited to the above-described embodiment and that various modifications and changes may be made without departing from the scope of the present invention as set forth in the following claims It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

100: Livestock Manure Fertilizer Treatment System
110: solid-liquid separator 111: rotating cylinder
113: Conveyor belt 115:
117: second receiving portion 130: sterilizing portion
131: sterilizing tube 133: first tube
134: heat insulating portion 135: second tube portion
136: conveying screw 137: heater
139: cooler 150: fermentation part
151: fermentation tube 153: feed screw
155: oxygen supply unit 157: microorganism input unit
170: ripe portion 180: deodorizer
T: raw material tank P: pump

Claims (5)

A solid-liquid separation unit for solid-liquid separation of the livestock manure;
A sterilizing pipe in the form of a cylinder for receiving the solid-liquid separated sludge state livestock manure, a feed screw installed in the sterilizing pipe for feeding the livestock manure, a heater installed in the heating section provided in the sterilizing pipe, A sterilizing unit installed in a cooling zone provided behind the heating zone to cool the sterilized livestock manure;
A fermentation tube in the form of a cylinder which receives and receives sterilized and cooled livestock manure from the sterilizing section; a feed screw installed in the fermentation tube for feeding the livestock manure; At least one fermentation unit including an oxygen supply unit for supplying the fermentation tube and a microorganism input unit installed at one side of the fermentation tube for inputting microorganisms;
And a cooler for cooling the fermented livestock manure, wherein the fermented livestock manure is a fermented livestock wastewater. The fermented livestock manure includes fermented livestock manure, Wow;
And a deodorizing unit provided in the sterilizing tube, the fermentation tube or the ripening unit for discharging and purifying the gas,
Wherein the sterilizing tube comprises a first tube portion provided with an inlet, a second tube portion provided with an outlet, and a heat insulating portion disposed between the first tube portion and the second tube portion to block heat conduction,
Wherein the heating section and the cooling section are provided at the first pipe section and the second pipe section, respectively. The method according to claim 1,
The solid-
A conveyor belt comprising a pair of rotary cylinders for pressing the livestock manure and a mesh member disposed at a lower portion of the rotary cylinder and selectively passing only liquid livestock manure selectively; And a second receiving portion provided at one side of the conveyor belt for receiving the separated sludge livestock manure. delete A method for fertilizing a livestock manure using the apparatus for treating livestock manure according to claim 1 or 2,
Liquid separation in the solid-liquid separation unit to provide a sludge-state livestock manure having a moisture content of 20 to 40%;
The sterilized livestock in the sludge state as solidified liquid is supplied to a sterilizing tube, sterilized by heating at 100 to 150 ° C in the heater, the sterilized livestock manure is cooled by 50 to 70 ° C by operating the cooler, A step S2 in which sterilization and cooling are sequentially performed while the livestock manure is transferred by the installed transfer screw;
The fermented livestock is fermented by supplying the sterilized and cooled livestock manure, microorganism and oxygen to the fermentation tube with a closed structure, and the temperature of the livestock manure is maintained at 40 to 60 ° C by fermentation heat without supplying any heat (S3) which is fermented for 2 to 4 days,
Wherein the step of continuously treating the manure from step S1 to step S3 is performed. 5. The method of claim 4,
Further comprising a step S4 of cooling the fermented livestock manure fermented by the fermentation unit to 20 to 30 DEG C while discharging and discharging the livestock manure.

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