KR100203992B1 - An apparatus for livestock's night soil - Google Patents

Abstract

The present invention is preheated by putting the moisture control material in the reaction tank and then continuously spraying a certain amount of manure per hour in the reaction tank while repeatedly performing the process of stirring after spraying to filter the urine sewage in livestock manure and treated with purified pretreated water In addition, the present invention relates to a filtered pig slurry processing system for treating only organic livestock manure remaining in the manure inside the reactor with organic fertilizer together with a moisture control material.

The present invention is formed in a cylindrical shape erected upright to compost the livestock manure and the inlet cover 12 is covered with an inlet 11 of the upper surface and the mixture outlet 13 and the inclined surface 14 is formed on the lower surface (10) and a stirring screw (15a) is formed from the lower end to the upper end by receiving power from the drive motor (16) inside the reactor (10), and the plate (15b) at the lower end of the stirring screw (15a) Is formed and a plurality of air supply holes (15c) formed in the lower portion of the reaction shaft and the reaction tank 10 to be continuously circulated through the air supply hole (15c) in the lower portion of the stirring shaft (15) The heat pump 21, the blower 22, the heater 23, and the like are attached to the upper portion of the heat supply circulation unit 20 in one unit, and the removable outlet 13 is provided to have a mixture outlet 13 at the lower end of the reactor 10. Filter network 17b and filtration layer which are installed as possible and which filter urine sewage in case 17a. Provided is a filtered pig slurry treatment system comprising a deodorization sterilization unit 17 for forming (17c) to deodorize and disinfect.

Description

Filtration Porcelain Slurry Processing System

The present invention relates to a filtration pig slurry treatment system, and more particularly, preheated by putting a moisture control material in the reactor, and repeatedly spraying a predetermined amount of livestock manure per hour in the reactor to stir for a predetermined time after spraying. A filter-type pig slurries treatment system in which only the urine sewage in livestock manure is filtered and treated with purified pretreatment water, and the livestock manure remaining in the reaction tank can be organically fertilized with a moisture control material. will be.

In recent years, the consumption of livestock products has increased dramatically as the dietary standard of the people has been changed to meat-oriented foods, and the number of livestock raising has naturally increased to meet the increased consumption of livestock products. Accordingly, as the scale of livestock increased, the management of livestock manure became an issue, and the growing demand for people's clean environment increased the legal burdens of livestock farming, resulting in strengthening legal regulations in the livestock farming industry. Is aggravating the situation.

In particular, in the case of pigs with a high water content of manure compared to other livestock, the treatment cost of manure is about 10% of the total production cost, and more than 90% is required to purchase moisture control materials, Recently, as water has become a resource, water-saving technology has begun to receive attention as a livestock manure treatment technology. Taking advantage of this trend, it is desirable to separate livestock manure, compost animal feed with organic fertilizer, and purify urine sewage. We are promoting the spread.

The treatment of livestock manure using such composting process is open type and closed type. Among these methods, the closed type livestock manure processing system, which is being actively developed in Korea, is a mixed dry composting system and a reduced pressure dry composting method. The system is known.

Since the mixed drying system is simply installed with a relatively stable technology or an open top inside a house or building, it is not only economically expensive to install in individual farms due to the relatively large land area and expensive initial facility cost, but also is not completely sealed. Then, there was a problem in operating costs due to the use of a large amount of air pollution and expensive moisture control material as the odor is released into the atmosphere.

In addition, the decompression drying composting system can be installed in a limited space because it absorbs moisture by drying the inside of a vacuum while the manure and moisture control material is mixed and stirred at a constant rate in an airtight container while applying heat at the bottom. On the other hand, since the final product is produced in a state that is not sufficiently stabilized by microorganisms, there is a high possibility of causing problems when used as compost and reduced to arable land.

In addition, all of these systems are a method of batch treatment of livestock manure and urine sewage in livestock manure with a water content of more than 90% without separate separation, so it is possible to compost the livestock manure by lowering the livestock manure. In order to lower the water content, a large amount of moisture control materials (sawdust, waste grains, waste feed, dry livestock powder, various oils, etc.) were consumed and there was a problem in that the efficiency of composting treatment could not be achieved.

The present invention has been researched and developed in order to solve all the problems and problems of the prior art as described above, the purpose is to put a certain amount of moisture control material in the reactor to preheat for a certain time to lower the water content and then manure manure in this reactor After continuously spraying a certain amount per hour and stirring for a predetermined time, while filtering only the urine sewage in the livestock manure to be treated with pre-treatment water, to control the moisture in the livestock manure remaining in the livestock manure inside the reactor It is to provide a filtered pig slurry treatment system which can be organically fertilized with ash.

In order to achieve the above object, the present invention is a cylindrical reaction tank erected upright to compost the livestock manure, and a stirring screw is formed from the lower end to the upper end by receiving power from the driving motor inside the reaction tank and the lower part thereof. A heat supply circulation unit including a stirring shaft having a plurality of air supply holes formed therein, and a heat pump, a blower, a heater, etc. in the upper portion of the reaction tank so as to continuously circulate through the air supply hole at the lower end of the stirring shaft; It is installed so as to have a mixture outlet at the bottom of the reaction tank, characterized in that consisting of a deodorizing sterilization unit for deodorizing and disinfecting to form a filter net and a filter layer for filtering the urine sewage.

In addition, the present invention is a preheating step of lowering the moisture content by preheating for a predetermined time while the intermittent operation of the heat supply circulation unit and the stirring shaft with a certain period after the input of a certain amount of water control material in the reaction tank, and the water preheated by this preheating step After spraying the manure to the control material by spraying a certain amount per hour continuously and repeatedly stirring the manure mixture with the stirring shaft for a certain time while at the same time to obtain the purified pretreatment water passing through the filter medium at the bottom of the reactor in the process The housing step of lowering the water content while the manure mixture inside the reaction tank is lowered, and the spraying and stirring of livestock manure to the manure mixture inside the reaction tank after the step is carried out in the same manner as the above step, and at the same time the reaction tank in the process Through the manure compound inside and the filter medium While obtaining the number of pre-purified by repeating several times the process of reducing the water content while the composted manure mixture which remains inside the reactor is characterized by made of an completed to obtain a completely decomposed in which organic fertilizer.

1 is a schematic configuration diagram of a filter type pork slurry processing system according to the present invention,

Figure 2 is an exploded perspective view showing a reaction tank and a deodorization sterilization unit in the present invention,

3 is a configuration diagram of a heat pump cycle according to the present invention,

4 and 5 are longitudinal and cross-sectional views showing another embodiment of the filtered pig slurry processing system according to the present invention.

* Explanation of symbols for main parts of the drawings

10,100: reactor 11: inlet

12: Inlet Cover 13: Mixture Outlet

14: inclined surface 15: stirring shaft

15a: stirring screw 15b: plate

15c: Air supply hole 16: Drive motor

17: deodorizing unit 17a: case

17b: filter network 17c: filter medium

20: heat supply circulation 21: heat pump

21a: first heat exchanger 21b: second heat exchanger

21c: compressor 21d: capillary

21e: Drain 22: Blower

23: heater 24: reservoir

25: supply line 26: pump

Hereinafter, specific features of the present invention will be more readily understood by explaining the present invention in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram of a filtration pig slurry treatment system according to the present invention, Figure 2 is an exploded perspective view showing a reaction tank and a deodorization sterilization unit in the present invention.

As shown in the figure, the reactor 10 is formed in a cylindrical shape standing upright, the top of the moisture control material (mainly sawdust, in addition to waste grains, waste feed, dry livestock, various oils, etc.). An inlet port 11 for injecting is formed, and an inlet cover 12 covering the inlet port 11 is mounted, and on the lower surface, purified pretreatment water in which urine sewage in the pork slurry is filtered by a moisture control material. The inclined surface 14 which leads to the mixture discharge port 13 side is formed.

A hollow stirring shaft 15 having a stirring screw 15a is vertically installed in the center of the reactor 10, and the stirring shaft 15 is rotated at a low speed (4 to 10 per minute) by the driving motor 16. Rotation).

The stirring shaft 15 has a constant width from the lower end to the upper end and is formed in a spirally formed strip-shaped stirring screw 15a, and at the lower end of the stirring screw 15a, a manure mixture in the reaction tank 10 is mixed. The plate 15b is formed at a height such that it does not touch the inclined surface 14 of the reaction tank 10 so as to be pushed out of the outlet 13, and a plurality of air supply holes 15c are formed at the bottom thereof.

Although the stirring screw 15a of the stirring shaft 15 is illustrated in a spiral band as shown in FIG. 1, the stirring screw 15a may be formed by using a general screw method in which the outer peripheral surface of the stirring shaft 15 and the stirring screw 15a are not spaced apart. have.

At the top of the reactor 10, a heat supply circulation part 20 including a heat pump 21, a blower 22, a heater 23, and the like is installed, and the heat supply circulation part 20 is agitated. Even though the shaft 15 is rotated, the upper end of the stirring shaft 15 and the heater 23 are connected to the mechanical seal so that the circulation fluid does not leak, and the air supply hole 15c below the stirring shaft 15-the reaction tank 10 It is in communication so as to continuously circulate through the inner space-heat supply circulation part 10 of the top.

The heat pump 21 is an air conditioner in which the first heat exchanger 21a, the second heat exchanger 21b, the compressor 21c, and the like form one cycle, as shown in FIG. The first heat exchanger 21a evaporates the refrigerant to absorb outdoor heat, and the compressor 21c compresses the refrigerant returned from the first heat exchanger 21a to high temperature and high pressure, and the second heat exchanger 21b is a compressor ( The heat of the high temperature, high pressure refrigerant supplied from 21c) is dissipated. In addition, a capillary tube 21d is formed between the first and second heat exchangers 21a and 21b, and the drain for discharging condensed water generated by condensation to the outside is formed in the first heat exchanger 21a. 21e) is formed.

At the bottom of the inclined surface 14 at the bottom of the reaction tank 10, a mixture outlet 13 is provided to be detachably coupled. The mixture outlet 13 has a filtering net 17b for filtering urine sewage in the case 17a. The deodorization sterilization part 17 which laminated | stacked the filtration layer 17c is formed.

One side of the reaction tank 10 is provided with a storage tank 24 for storing the slurry of money, and the storage tank 24 and the reaction tank 10 is connected to the supply pipe 25, the supply pipe 25 is a money slurry A pump 26 for pumping into the reactor 10 is provided.

With reference to the filtration pig slurry processing system of the present invention configured as described above will be described in detail the processing.

First, open the inlet cover 12 of the upper end of the reaction tank 10, put a predetermined amount of moisture control material through the inlet 11 and then close the inlet 11 with the inlet cover 12.

In this state, the heat pump 21, the blower 22, and the heater 23 constituting the heat supply circulation part 20 are operated and the drive motor 16 is driven to drive the stirring shaft connected to the drive motor 16. Rotate 15). At this time, the hollow rotating shaft 15 is to be rotated within 4 to 10 rotations per minute.

In addition, the moisture control material in the reactor 10 is stirred while the hot air generated by the second heat exchanger 21b and the heater 23 of the heat pump 21 which is operated at the same time by the blowing force of the blower 22 Therefore, it is discharged through the stirring shaft 15 to the lower air supply hole (15c). At this time, since the air supply holes 15c are uniformly arranged under the stirring shaft 15, high temperature air is evenly distributed and supplied.

While this process continues, the moisture control material in the reaction tank 10 is in contact with the hot air supplied by the blower 22 while being uniformly mixed and stirred as the stirring screw 15a of the stirring shaft 15 is rotated. As it becomes larger, the pore efficiency is dried in a good state. Accordingly, the inside of the reaction tank 10 is maintained at a uniform temperature in the upper and lower portions inside the reaction tank 10 within the shortest time due to the high temperature convection.

Meanwhile, since the heat pump 21 is also operated while the heat supply circulation part 20 is operating, the refrigerant flowing in the cycle of the heat pump 21 is transferred from the compressor 21c to the first heat exchanger 21a and the second heat exchanger. It is continuously circulated through the group 21b. At this time, the heat pump 21 is to provide a heat source because the refrigerant circulated by the compressor (21c) as shown in FIG. 4 is radiated from the second heat exchanger (21b) when provided to the second heat exchanger (21b), The refrigerant discharged from the second heat exchanger 21b is provided to the first heat exchanger 21a via the capillary tube 21d to discharge cold air.

While the heat pump cycle operates as described above, the first heat exchanger 21a absorbs heat of the high-temperature air returned from the reaction tank 10 as the refrigerant expands and evaporates at low temperature and low pressure, thereby retaining moisture of the high-temperature air. Since the condensed water condensed and condensed by this condensation is discharged to the outside through the drain 21e, the moisture control material inside the reaction tank 10 is dried, so that the moisture content is lowered.

At this time, the temperature inside the reactor 10 was preheated for 6 hours while maintaining the temperature at 35 ℃ reduced the water content 1.5% from 35.8% to 34.3% 1.5%, if the preheating for 12 hours under the above conditions, the water content is lowered to within 20% to 30% Can be.

As such, the high temperature air is recycled repeatedly from the lower part of the reaction tank 10 to the upper part so that only a minimum of fresh air is supplied, thereby minimizing heat loss due to convection.

In this manner, the moisture control material is preheated for a predetermined time to lower the water content, and the pump 26 at the top of the storage tank 24 is operated while repeating the heat supply circulating part 20 for 10 minutes and stopping for 5 minutes as in the above condition. When the slurry of livestock manure in the reservoir 24 is sprayed from the upper end of the reaction tank 10 through the supply pipe 25 and sprayed on the moisture control material therein. At this time, the livestock manure should be sprayed a certain amount per hour in a continuous spraying method. In one example, the spray amount per hour to 20 kg to spray 80 kg for 4 hours. The amount of the manure can be varied as much as the capacity of the reaction tank 10 and the heat supply circulating unit 20.

In this way, after spraying livestock manure for 4 hours and driving the drive motor 16 for about 20 minutes while the livestock manure is stopped, the stirring shaft 15 connected to the drive motor 16 is rotated 4 to 10 revolutions per minute. do.

Therefore, the manure mixture treated in the reaction tank 10 in a state in which the moisture control material inside the reaction tank 10 and the pork slurry sprayed therein are mixed with a stirring screw 15a to move a strong hot air. Due to convection, at the same time the porosity of the manure mixture is improved, as well as water removal, which starts to dry faster.

The water content inside the reactor 10 gradually increased from the supply of the pork slurry in the reservoir 24 to the reactor 10 until 12 hours, and then started to decrease starting at a maximum of 73%. When reduced to 67%.

The stirring shaft 15 is stirred for 20 minutes every 4 hours because it is preferable to increase the filtration efficiency of the pork slurry while reducing the pollutant load of the discharged filtered water so that channeling of the contents does not occur.

Into the slurry in the reaction tank 10 of the present invention was stored in a simple storage tank and induced precipitation and then pumped only the supernatant, so that the suspended matter was lower than the other level as about 1675ppm, the moisture control material inside the reactor 10 and the bottom The purified pretreatment water passing through the deodorization sterilization unit 17 was found to be 174 to 288 ppm of suspended solids of 1675 ppm.

The purified pre-treatment water was light brown, and the susceptibility was significantly improved by passing through the water control material of the reaction tank (10) to light brown, and the odor of the money slurry itself was diluted in the wood smell peculiar to the water control material. It will improve some wood fragrance.

In addition, the BOD contamination load of the filtrate of the filtered water discharged after 8 hours after the application of 7328 ppm of biological oxygen demand (BOD) was applied, was reduced by about 700 ppm from the original pig slurry, and the BOD of the filtered water discharged after 12 hours. Pollutant loading was reduced by 50% to 3755ppm.

As the filtration time elapses, the amount of BOD pollutant load discharged through the reaction tank 10 decreases, because about 90% of the suspended solids are removed while the pork slurry containing a large amount of organic matter is filtered through the moisture control material. This is because the microorganisms in the reaction tank 10 gradually increase in activity and the amount of organic matter decomposing increases with time.

Even when this process is repeated, the heat supply circulation part 20 at the upper end of the reaction tank 10 is also continuously operated, so that the high temperature air circulated in the reaction tank 10 is recovered to the heat pump 21 and the blower 22 and the heater ( 23 is provided to the stirring shaft 15 again, which is supplied to the lower portion of the reaction tank 10 through the air supply hole 15c of the stirring shaft 15. At this time, since the air supply holes 15c are uniformly arranged under the stirring shaft 15, evenly distributed high temperature air is supplied.

As such, the high temperature air is recycled inside the reaction tank 10 to supply only fresh air, thereby minimizing heat loss due to convection and controlling odor.

While this process continues, the manure mixture in the reaction tank 10 is uniformly mixed and agitated while the contact surface of the air supplied by the blower 22 is enlarged, so that the reaction efficiency is low. The high temperature air circulated inside the reaction tank 10 has a lot of moisture and a bad odor.

On the other hand, since the heat pump 21 is continuously operated while the heat supply circulation part 20 is operating similarly to the process of preheating the moisture control material, the refrigerant in the heat pump cycle is transferred from the compressor 21c to the first heat exchanger. It is continuously circulated through the 21a and the second heat exchanger 21b. At this time, the heat pump 21 is to provide a heat source because the refrigerant circulated by the compressor (21c) as shown in Figure 3 is provided to the second heat exchanger (21b) heat radiation from the second heat exchanger (21b), The refrigerant discharged from the second heat exchanger 21b is provided to the first heat exchanger 21a via the capillary tube 21d to discharge cold air.

While the heat pump cycle operates as described above, the first heat exchanger 21a absorbs heat of the high-temperature air returned from the reaction tank 10 as the refrigerant expands and evaporates at low temperature and low pressure, thereby retaining moisture of the high-temperature air. The condensed water condensed and condensed by this condensation is discharged to the outside through the drain 21e, so that the manure mixed radish inside the reaction tank 10 is dried to lower the water content.

After the water content of the manure mixture is reached as described above, the process is repeated again and again several times while the manure at a constant rate in the reaction tank 10 after treatment for a certain period of time in the reaction tank (10). The manure mixture at this time functions as a moisture control material for treating livestock manure.

Thus, the manure mixture to be repeatedly treated in the reaction tank (10) for a certain period of time because it is a buffered action by the air layer and at a relatively low flow rate to promote the self-heating and decomposition of organic matter of the house, the manure mixture at this time the water content A certain level is reached.

As described above, the manure mixture in the reaction tank 10 accelerates the biophysical composition of the manure mixture by the microorganisms generated in the previous treatment, and at least 5 to 7 times (10 to 15 days) in such an environment. Since it is circulated in the reaction tank (10) and continues to be fully matured, it is possible to obtain a stable organic fertilizer upon release.

In this way, when the manure mixture is organic fertilizer, the deodorizing and disinfecting unit 17 of the lower surface of the reaction tank 10 is separated and removed, so that the mixture outlet 13 is opened on the lower surface of the reaction tank 10, so that the stirring shaft 15 is interlocked with the driving motor 16. As the) is rotated, the manure mixture in the reaction tank 10 is pushed to the mixture discharge part 13 by the plate 15b at the bottom of the stirring screw 15a.

As described above, since the manure-dried manure mixture dried in the reaction tank 10 is re-injected repeatedly as a moisture control material, it is possible to produce a suitable compost while minimizing the use of a moisture control material such as a separate sawdust.

4 and 5 are views showing another embodiment of the filtration pork slurry according to the present invention, in which a stirring shaft 15 having a stirring screw 15a is formed in the center of the reaction tank 100 and the stirring shaft 15 is provided. In the position adjacent to the several stirring shaft 150 is installed to be rotated in the same direction, the inner shape of the reaction vessel 10 so that the stirring shaft 150 is evenly stirred evenly when the moisture control material is rotated. Except that formed in a shape having a predetermined interval along the outer shape of the stirring shaft 150 is the same as the configuration of the present invention.

The present invention of another embodiment configured as described above is more effectively agitated by the stirring screw (15a) of the stirring shaft (15,150) in which the moisture control material in the reaction tank 100 is uniformly arranged to improve the porosity of the moisture control material and the manure mixture. It can be planned.

As described in detail above, according to the filtered donslurry treatment system of the present invention, natural urine sewage of livestock manure is separated by filtering the urine sewage of the donslurry through a filtration network and a filtration layer of a deodorization sterilization unit installed in the mixture outlet of the lower surface of the reaction tank. After filtering the urine sewage in the pork slurries, the small amount of livestock powder remaining in the reactor is housed together with the moisture control material, so that effective composting is possible in one reactor, thereby reducing energy and facility investment cost. There are unique effects that can be devised.

In addition, the present invention, unlike the conventional treatment system to temporarily put the entire amount of pork slurry in the reaction tank, and sprayed by spraying a certain amount of pork slurry per hour to the moisture control material in the preheated reaction tank and then repeat the stirring process Therefore, it is possible to improve the porosity of the manure mixture mixed with the moisture control material and the don slurry, thereby increasing the temperature of the upper and lower parts of the reaction tank as well as improving the water removal rate.

In addition, the present invention, while the odor of the pork slurry is filtered through the moisture control material of the reaction tank, the wood smell peculiar to sawdust is diluted to have a slight wood fragrance, so when using a high-quality moisture control material with high deodorizing effect, Odor problem can be improved, and in particular, since a separate moisture control material can be exchanged in the mixture outlet, the deodorizing effect can be doubled and the disinfection effect of the filtered water can be achieved.

In addition, the present invention can be produced by composting the dry dung manure mixture in the reaction tank repeatedly with a moisture control material to produce a suitable compost while minimizing the use of a water control material such as a separate sawdust, thereby reducing the treatment cost of the manure Since it can minimize the purchase of moisture control materials that occupy more than 90%, there is a peculiar effect that can reduce the management burden.

Claims (4)

Reactor 10 having a cylindrical shape erected upright to compost the livestock manure, the inlet cover 12 is covered on the inlet 11 of the upper surface and the mixture outlet 13 and the inclined surface 14 formed on the lower surface Wow, In the reactor 10, the driving motor 16 receives power from the lower end to the upper end, and a stirring screw 15a is formed, and a lower plate 15b is formed at the lower end of the stirring screw 15a, and a lower portion thereof. A stirring shaft 15 having a plurality of air supply holes 15c formed therein, A heat pump 21, a blower 22, a heater 23, and the like are disposed on the upper portion of the reaction tank 10 so as to continuously circulate through the air supply hole 15c at the lower end of the stirring shaft 15. A heat supply circulating unit 20 formed of a unit, It is detachably installed to have a mixture outlet 13 at the lower end of the reaction tank 10 and forms a filter net 17b and a filter layer 17c for filtering urine sewage in livestock manure in the case 17a to deodorize and disinfect. Filtered pork slurry processing system characterized in that the deodorizing sterilization unit (17). The first heat exchanger of claim 1, wherein the heat pump 21 includes a drain 21e for evaporating refrigerant to absorb heat from the outside and discharging condensed water generated by dew condensation to the outside. 21a, a compressor 21c for compressing the refrigerant returned from the first heat exchanger 21a at high temperature and high pressure, and a second heat exchanger for radiating heat of the high temperature and high pressure refrigerant supplied from the compressor 21c. (21b) and a capillary tube (21d) connected between the first and second heat exchangers (21a, 21b), etc., comprising a single cycle. The method according to claim 1, wherein a plurality of stirring shafts 150 are connected to each other in a proximal position of the stirring shafts 15, and the inner surface of the reaction tank 10 has stirring shafts 15 and 150. Filtration pig slurry treatment system characterized in that it is provided with a reaction tank (100) formed in the inner shape with a predetermined interval along the outer shape of the stirring shaft (150) so that the moisture control material is evenly stirred evenly during the rotation. Preheating step of lowering the moisture content by preheating for a predetermined time while the intermittent operation of the heat supply circulation unit 20 and the stirring shaft 15 with a certain period after the input of a certain amount of moisture control material in the reaction tank 10, After spraying the livestock manure continuously by spraying a predetermined amount per hour to the moisture control material preheated by this preheating step, the process of agitating the manure mixture with the stirring shaft 15 for a predetermined time repeatedly and at the same time the reaction tank ( 10) a step of lowering the water content while the manure mixture inside the reaction tank 10 while obtaining the purified pretreatment water passing through the manure compound and the filter medium at the bottom thereof; The spraying and stirring process of the livestock manure to the manure mixture in the reaction tank 10, which has undergone the maturation step, is repeatedly performed in the same manner as in the above-mentioned maturation step, and at the same time, the manure compound in the reaction tank 10 and the filter medium at the bottom thereof. Filtration pig slurry treatment system characterized in that the filter is made of a complete step of obtaining a fully fertilized organic fertilizer by repeating the process of lowering the water content while boiling the manure mixture remaining in the reaction tank 10 while obtaining the purified pretreatment water passed through .

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