KR100336289B1 - A sewage disposal system for cattle barns - Google Patents

Abstract

The present invention can contribute to the prevention of water pollution or environmental pollution caused by the barn sewage by simply evaporating wastewater such as livestock sewage discharged from the barn, and efficiently recover the waste heat generated during sewage treatment, such as hot water supply or heating. The present invention relates to a livestock sewage treatment device configured to be used, and further includes an aeration device for sewage and a means for atomizing injection evaporation of the sewage into compressed air to further increase the evaporation efficiency of the sewage and to prevent odor generation by using an ozone supply means. The present invention relates to a livestock sewage treatment apparatus that is excluded as much as possible.

The present invention provides a sewage collection tank (1) for collecting sewage from a livestock house, aeration means (5) (6) for aeration of sewage collected in the sewage collection tank (1), and the sewage collection tank ( 1) an evaporation treatment section 11 for receiving effluent from 1), an ozone supply means 9 and 10 for generating and supplying ozone into the evaporation treatment section 11, and a combustion vessel from the evaporation treatment section 11; It comprises a hot water circulation line 12 for recovering the waste heat retained by the gas gas used for hot water generation and hot water heating, the evaporation unit 11 is arranged in multiple stages up and down inside the treatment tank 13, A plurality of evaporation substrates 14, 15, 16 and 17 that can receive and evaporate sewage therein, and heating means 20, 21 and 22 for evaporating sewage in the evaporation substrates. (23) and (24) and heated wastewater in each of the evaporation substrates 14, 15, 16, and 17 by atomizing and spraying them with compressed air. Provides a shaft used for sewage treatment, wherein being configured to include means (18, 19) which can.

Description

Livestock Sewage Treatment System {A SEWAGE DISPOSAL SYSTEM FOR CATTLE BARNS}

The present invention is mainly installed in the vicinity of the livestock house by hygienically evaporating wastewater such as sewage generated from the sewage of livestock discharged from the livestock, cleaning of the livestock house, etc., or sewage water generated from the manure treatment tank. The present invention relates to a livestock sewage treatment system configured to efficiently and economically reduce water quality and environmental pollution caused by various wastewater discharged from livestock houses, and to efficiently recover and use waste heat generated during evaporation of sewage. A further improved livestock sewage treatment apparatus configured to further increase treatment efficiency and prevent odor generation.

At present, there are many large and small livestock farms for raising livestock such as cattle, pigs, horses, and dogs, and large quantities of wastewater, including livestock manure, are generated every day. Because of the unauthorized release to rivers, lakes, etc., the situation is causing serious water pollution and environmental pollution.

Such livestock must be equipped with a facility that can be purified to the extent that the livestock manure and various waste water from the livestock house does not cause water pollution.However, the operation of installation of such a cleanup facility is close to the income from raising livestock. Due to the high cost of income, it is often installed or used only in some large livestock farms, and even there is a big limitation in the purification capacity and life of the facility. And environmental pollution prevention is often difficult to achieve practically and economically.

Accordingly, the present invention has been made to solve the conventional problems as described above, and can effectively and economically evaporate various wastewater discharged from the livestock barn, greatly contributing to the prevention of water quality and environmental pollution due to the barn discharge. In addition, it is a livestock sewage treatment device that can efficiently recover and use waste heat associated with the evaporation of sewage, and further improved livestock sewage treatment by installing means to further increase the evaporation efficiency of sewage and prevent odor generation. The object is to provide a device.

In particular, the present invention further improves the utility model registration application No. 98-13041 and the patent application No. 99-3236, which have been previously filed in connection with the sewage treatment of the livestock house, which provides better sewage treatment efficiency and installation use advantages. It is to provide a sewage treatment apparatus.

1 is a general configuration diagram of a livestock wastewater treatment apparatus according to an embodiment of the present invention,

Figure 2 is a detailed view of the evaporation treatment unit in the apparatus of the present invention,

3 is a detailed view of the evaporation treatment unit viewed from another direction;

4 is a schematic plan view showing the configuration of a means for injecting and supplying air into the evaporation treatment section;

Explanation of symbols on the main parts of the drawings

1: sewage collection tank 2: filter network 3: pump

4: tube 5: compressor 6: aeration nozzle

7: pump 8: sewage supply pipe 9: ozone generator

10: ozone supply pipe 11: evaporation unit 12: hot water circulation line

13 treatment tank 14,15,16,17 evaporation substrate 18 pump

19: compressor 20: burner 21: vertical guide passage

22, 23, 24: horizontal guide passage 25, 26, 27: guide plate 28: air spray nozzle

29 exhaust port 30 blower 31 air supply pipe

32: exhaust pipe 33: hot water tank 34, 35: circulation pump

36: distributor 37: water supply line 38: overflow pipe

39: dust collector 40: stack 41: check hole

The present invention for achieving the above object is a sewage collection tank for collecting sewage from the livestock house, aeration means for aeration treatment of sewage collected in the sewage collection tank, and supplying sewage from the sewage collection tank An evaporation processing unit for receiving and evaporating, an ozone supply means for generating and supplying ozone in the evaporation processing unit, and a hot water circulation line for recovering waste heat held by the combustion exhaust gas from the evaporation processing unit and generating hot water and heating the hot water. And a plurality of evaporation substrates arranged in multiple stages up and down in the processing tank and installed to receive and evaporate sewage inside each of them, and heating means for heating and evaporating sewage in the evaporation substrates. And means for evaporating the heated sewage in each evaporation substrate by atomizing spraying with compressed air. Provided is a sewage treatment apparatus for livestock use, which is configured.

The heating means includes, for example, a burner for burning fuel such as light oil or heavy oil to generate and supply the combustion heat from the bottom of the evaporation unit, and a combustion air flow guide passage for inducing and supplying the combustion air by the burner to each of the evaporation substrates. do. The evaporation treatment unit may be provided with means for generating vortex or turbulence for the combustion air in the evaporation treatment unit to increase the sewage evaporation efficiency.

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

Figure 1 shows the overall configuration of the livestock wastewater treatment apparatus according to a preferred embodiment of the present invention.

As shown here, the sewage treatment apparatus of the present invention includes a sewage collection tank 1 in which sewage to be treated is collected through a pipe 4 in which a filtering network 2 and a pump 3 are installed, and the sewage collection tank. (1) aeration means (5) and (6) for aeration of sewage collected in the water, and sewage from the sewage collection tank (1) is internally supplied through a sewage supply pipe (8) provided with a pump (7) and heated; To recover the waste heat retained by the evaporation treatment unit 11 for evaporating, the ozone supply means 9 and 10 for generating and supplying ozone into the evaporation processing unit 11, and the combustion exhaust gas discharged from the evaporation processing unit 11; It is configured to include a hot water circulation line 12 that is operated by.

In the illustrated embodiment, the aeration means comprises a compressor 5 and an aeration nozzle 6 which aerators compressed air from the compressor 5 into the sewage in the sewage collection tank 1 to aeration the sewage. The ozone supply means is configured to include an ozone generator 9 and an ozone supply pipe 10 for supplying ozone from the ozone generator 9 to an appropriate place in the treatment tank 13.

The evaporation processing unit 11 is arranged to install a plurality of evaporation substrates (14, 15, 16, 17) in multiple stages at a proper interval up and down in the inner center of the treatment tank (13). Depending on the design, the evaporation substrates may be installed in more or less than shown.

The evaporation substrates 14, 15, 16, and 17 may receive the sewage from the sewage collection tank 1 through the sewage supply pipe 8, in which the pump 7 is installed, to be evaporated. It is supposed to be. The other side of the evaporation substrates 14, 15, 16, and 17 that are supplied with the wastewater to be treated in this way is the wastewater that is heated and evaporated inside the evaporation substrates 14, 15, 16, and 17. Means for pulling up part of the pump 18 and the atomization spray evaporation to the compressed air by the compressor 19 are connected. Combustion air flow by the burner 20 is supplied between the bottom evaporation substrate 17 and the bottom of the treatment tank 13 among the evaporation substrates, which are the evaporation substrates 14, 15 and 16. And a plurality of vertical guide passages 21 vertically penetrating between the 17 and the bottoms of the evaporation substrates 14, 15 and 16 in communication with the vertical guide passages 21. The sewage in each of the evaporation substrates 14, 15, 16, and 17 is heated and evaporated while flowing into the horizontal guide passages 22, 23, and 24.

In the preferred embodiment, each of the vertical guide passages 21 is provided with retardation wall portions 21a and 21b for preventing the combustion air from escaping too quickly through these passages, for example, as in the example of FIG. .

Air in the treatment tank 13 heated by the combustion air from the burner 20 is spaced around the evaporation substrates 17, 16, 15 and between the guide plates 27, 26, 25. It passes through the treatment tank 13 in turn through. At this time, the air spray nozzles 28 are installed in the inner wall portion of the processing tank 13, and the heating is raised from the bottom in the processing tank 13 to the top by the air injected through the air spray nozzles 28. The discharged air is caused to swirl around the evaporation substrates 14, 15, 16, and 17 while causing vortices or turbulent flows, thereby removing the sewage contained in each of the evaporation substrates 14, 15, 16 and 17. It is intended to accelerate evaporation removal. In this way, the vapor evaporated from the evaporation substrates 14, 15, 16, 17 is discharged to the outside of the treatment tank 13 through the outlet 29.

In a preferred embodiment, the air injection nozzles 28 inject air supplied through the air supply pipe 31 by the blower 30 along the circumferential direction in the treatment tank 13 to flow the air in the treatment tank 13. Install to cause vortex. At this time, the air supplied into the treatment tank 13 through the air spray nozzles 28 is preheated by the heat in the hot exhaust gas discharged above the treatment tank 13 and then supplied into the treatment tank 13. .

The hot water circulation line 12 recovering the waste heat retained by the combustion exhaust gas discharged through the exhaust pipe 32 through the exhaust pipe 32 through which the combustion exhaust gas from the evaporation processing unit 11 is discharged and generating and circulating hot water. This is installed as shown in the example shown. This hot water circulation line 12 is a hot water tank 33, circulation pump 34, 35, distributor 36, water supply line 37, overflow pipe 38 and the like as in a conventional hot water circulation system It may be a configuration that includes.

The combustion exhaust gas discharged through the exhaust pipe 32 is installed to be finally discharged to the stack 40 after dust and harmful components are collected and removed through the dust collector 39.

In operation, the sewage collected in the sewage collection tank 1 through the pipe 4 by the operation of the pump 3 is aerated with air injected from the aeration nozzle 6 by the compressor 5, The aerated wastewater is supplied to each of the evaporation substrates 14, 15, 16 and 17 in the treatment tank 13 through the sewage supply pipe 8 by the operation of the pump 7. In this way, when the combustion air is generated by the operation of the burner 20 while the waste water to be treated is supplied into each of the evaporation substrates 14, 15, 16, and 17 in the treatment tank 13, a part of the combustion air flow is generated. Heats the bottom evaporation substrate 17 to evaporate the sewage therein and partially heats the sewage in the evaporation substrates 14, 15, 16, 17 while passing through the interior of the vertical guide passages 21. At the same time, the combustion air flowing into the vertical induction passages 21 flows into the horizontal induction passages 22, 23 and 24 at the bottom of the evaporation substrates 14, 15 and 16. The bottom part of the evaporator substrate 14, 15, 16 and 17 is continuously evaporated by heating the bottom of the chopper 15 and 16 evenly. In addition, the air in the processing tank 13 heated by the combustion air from the burner 20 is a space between the evaporation substrates 14, 15, 16 and the guide plates 25, 26, 27. The air flow upwardly discharged through the air is discharged through the air jet nozzles 28 to cause vortex or turbulence around each evaporation substrate 14, 15, 16, and 17. As it evolves, evaporation removal of sewage from each of the evaporation substrates 14, 15, 16, and 17 is further accelerated, and continuous evaporation removal of sewage is performed. At the same time, some of the sewage to be heated in each of the evaporation substrates 14, 15, 16 and 17 is sucked by the pump 18 and then atomized spray evaporation by compressed air by the compressor 19. As a result, the wastewater evaporation efficiency of the device is further increased by being discharged outside the treatment tank 13. In addition, the ozone generated by the ozone generator 9 is supplied into the treatment tank 13 through the ozone supply pipe 10 to neutralize and remove the odor generated from the evaporated sewage. After evaporation of sewage for a certain period of time in this manner, the inspection opening 41 is opened and the evaporation residues on each of the evaporation substrates 14, 15, 16 and 17 are cleaned and removed. To prepare for the next sewage treatment.

The combustion exhaust gas which heat-evaporates sewage on the evaporation substrates 14, 15, 16, and 17 in the evaporation treatment unit 13 as described above is treated through the exhaust pipe 32 above the treatment tank 13. In this case, the waste heat retained by the high temperature combustion exhaust gas discharged through the exhaust pipe 32 is recovered and used by the hot water circulation line 12 connected to the exhaust pipe 32 to circulate the hot water. The hot water is generated and circulated through the line 12.

The combustion waste gas utilized as described above is discharged to the stack 40 after the dust and harmful components are removed while passing through the dust collector 39.

Therefore, the apparatus of the present invention can easily evaporate the wastewater discharged from the livestock house by the above-described configuration and operation very hygienically and economically, and greatly contribute to preventing water pollution or environmental pollution caused by the livestock house wastewater. In addition, the waste heat in the flue gas discharged during operation of the device is recovered to provide a new useful effect that can be efficiently utilized for the production and supply of hot water.

Claims (1)

A sewage collection tank 1 for collecting sewage to be treated, aeration means 5 and 6 for aeration treatment of sewage collected in the sewage collection tank 1, and the sewage collection tank 1 Evaporation treatment unit 11 for receiving evaporation of sewage, ozone supply means (9) (10) for generating and supplying ozone in the evaporation treatment unit (11), and combustion exhaust gas discharged from the evaporation treatment unit (11). It is configured to include a hot water circulation line 12 connected to the evaporation treatment unit 11 to recover the waste heat of the operation, The evaporation treatment unit 11 and the treatment tank 13, A plurality of evaporation substrates 14, 15, 16 and 17 arranged in a plurality of stages up and down inside the treatment tank 13 so as to receive and evaporate sewage inside each; Means (20), (21), (22), (23) and (24) installed to heat and evaporate sewage in the evaporation substrate, A shaft comprising a means (18) (19) is provided to be evaporated by atomizing and spraying the heated sewage in each of the evaporation substrate (14, 15, 16, 17) by compressed air Sewage treatment device used.