KR101448262B1 - Stock farm waste water and waste matter purify apparatus and method - Google Patents

Abstract

The present invention relates to an apparatus and a method for treating livestock manures and wastewater, which comprises heating a manure to separate it into solid sludge and gas, removing particulate matter contained in the gas, condensing the liquid (cooling water) ), And to treat it with effluent water capable of natural discharge.
The apparatus for treating livestock manures and wastewater according to the present invention comprises a reactor 10 for separating water into a gas and separating it into solid sludge and gas by applying heat to the manure by inputting the manure; A cyclone 40 for receiving the phase-changed gas in the reactor and separating the particulate matter contained in the gas; A heat exchanger (30) receiving the phase-changed gas in the reactor, vaporizing moisture contained in the gas through heat exchange and supplying the gas to the cyclone; A condenser 50 for condensing particulate matter separated through the cyclone; A water collecting tank (60) for storing condensed liquid in the condenser; And a liquefaction tank (80) for liquefying the gas which has not been condensed in the condenser.
The present invention provides a method for treating livestock manures and wastewater, comprising the steps of: separating a solid sludge into a gas by heating manure to vaporize water into a gas; A second step of separating the particulate matter contained in the gas by centrifugal force after applying heat to the gas separated by the phase change through the first step and vaporizing the non-vaporized water in the first step; A third step of condensing the gas through heat exchange between the gas and the cooling medium through the second step to collect the condensed water; And a fourth step of liquefying the gas which has not been condensed through the third step.

Description

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an apparatus and a method for treating wastewater,

More particularly, the present invention relates to an apparatus and method for treating livestock manure and wastewater, and more particularly, to an apparatus and method for treating livestock manure and wastewater, The present invention relates to a livestock manure and a wastewater treatment apparatus and method capable of natural discharge without purification treatment.

As the consumption of meat has rapidly increased due to the progress of industrial society, the livestock industry has been developed, the emission of manure has been increased due to the development of livestock industry, and the manure has further included water for cleaning feeds and breeding farms, Is increasing.

On the other hand, animal wastes have a property as an organic fertilizer, but their form is a mixture of solid and liquid. Since odor is generated and a large amount is generated at the same time, the whole amount can not be utilized as fertilizer as it is. Pollution of soil and rivers, etc., and harming human health by the habit of insect pests. Recently, disposal of waste has become a social problem.

In view of the above circumstances, Japanese Utility Model Application Laid-Open No. 59-29688 discloses a device for drying a waste with the title of "toxic waste dryer" and regenerating it as organic fertilizer.

Japanese Utility Model Application Laid-Open No. 59-29688 discloses a conveying mechanism for conveying waste supplied from one side of a drying rack to the other side of a drying rack while stirring, and a plurality of air holes formed at the bottom of the drying rack, A hot air duct for supplying dry air to the inside of the dryer, and a hot air generating mechanism for supplying hot air to the hot air duct. Accordingly, hot air generated in the hot air generating mechanism is supplied to the hot air duct, and the floor is heated, and at the same time, a part of hot air is blown out into the air holes, thereby evaporating and drying moisture contained in the waste conveyed by the conveying mechanism.

However, the dryer according to the prior art has a problem in that it is not suitable for treating wastes containing a large amount of water such as livestock wastes. That is, since the livestock wastes contain a large amount of wastewater such as urine, if the moisture contained in the wastes is dried without being separated, the drying time becomes very long and the wastewater flowing from the livestock waste flows into the apparatus So that the apparatus is easily corroded and damaged.

In order to accomplish this, a water dewatering and separation storage tank is provided in the pre-drying process to dehydrate the livestock waste before dehydrating the livestock waste into the dryer, thereby improving drying efficiency and preventing corrosion of the device.

However, in the case of the above-mentioned prior art, the livestock manure wastewater generated in the dehydration process is merely separated and stored in the storage tank, and the function of purifying the collected wastewater is lacking. Therefore, when the wastewater collected through dehydration is discharged as it is, there is a problem that environmental pollution problems such as river and soil are left untouched.

In addition to the above, techniques for treating livestock waste have been well known in the prior art. However, most of the techniques are complicated with the context of the above-mentioned constitution, and the above problems are inherent.

Registration No. 10-0816488

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a sludge- And an object of the present invention is to provide an apparatus and method for treating livestock manures and wastewater which can be treated with discharged water capable of natural discharge.

Another object of the present invention is to recover the purified effluent because the pollutant (particulate matter) can be removed by vaporizing water by heating the gas after the first vaporization process.

Another object of the present invention is to reuse the heat source for phase-changing the liquid into gas to dry the solid sludge and reuse the collected treated water for liquefaction of the gas, thereby reducing power consumption and miniaturization of the device.

The present invention relates to an apparatus for treating livestock manures and wastewater, comprising: a reactor for introducing manure into a solid phase sludge and gas by phase-changing water into gas; A cyclone for receiving the phase-changed gas in the reactor and separating the particulate matter contained in the gas; A condenser for condensing particulate matter separated through the cyclone; A water collecting tank for storing the condensed liquid in the condenser; And a liquefaction tank for liquefying the gas which has not been condensed in the condenser.

According to the livestock manure and wastewater treatment apparatus and method according to the present invention, the manure is heated to separate into solid sludge and gas, the particulate matter contained in the gas is removed, and the gas from which the particulate matter is removed is separated into two It is possible to improve the reliability of the livestock manure and the wastewater treatment apparatus and to reduce the cost for using the separate purification treatment.

In addition, since the primary vaporized gas is vaporized secondarily, vaporization of the non-vaporized water during the primary vaporization makes it possible to separate the pollutant (particulate matter), and thus the treatment water having a higher purification degree, that is, It is possible to produce discharged water capable of natural discharge.

In addition, since the heat source or treated water used in the present invention can be used as a heat source for heating and a cooling medium, the cost for using a separate heat source and a cooling medium can be reduced, thereby minimizing the operation cost of the apparatus.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an apparatus for treating livestock manures and wastewater according to the present invention;
FIG. 2 is a sectional view of a main part of a liquefaction tank applied to an animal manure and wastewater treatment apparatus according to the present invention. FIG.

As shown in FIG. 1, the apparatus for treating livestock manures and wastewater according to the present invention is a system for separating liquids into manure (including livestock manure and wastewater, hereinafter referred to as manure) And a reactor 10 for drying the solid sludge remaining in the reactor 10. The reactor 10 is supplied with the phase-changed gas and is supplied to the gas through heat exchange A cyclone 30 for receiving the phase-changed gas through the heat exchanger 30 and separating contaminants contained in the gas (particulate matter transferred with the gas during the vaporization process) A condenser 50 for condensing the gas separated from the cyclone 40, a water collecting tank 60 for storing condensed water condensed through the condenser 50, a condenser 50 connected to the condenser 50, 50) to the gas that has not condensed A gas-liquid separator 70 for separating gas and liquid and storing the liquid in the collecting tank 60 and a liquefaction tank 80 for liquefying the gas separated through the gas-liquid separator 70. Hereinafter, This will be described in detail.

The reactor 10 is a tank for providing a space for separating manure into solid sludge and gas and is connected to the feed pump 2 and the feed pipe 3 so as to receive manure from the manure tank 1 in which manure is stored do. Preferably, the supply pipe 3 is provided with a check valve 4 for preventing backflow of manure supplied along the supply pipe 3.

The reactor 10 uses heat to convert water (urine) into gas, and the boiler 11 and the heating jacket 12 are configured for this purpose. The boiler (11) is capable of all the ways of generating heat of high temperature such as oil boiler, gas boiler, electric heater and the like (the temperature capable of vaporizing water, for example, 100 ° C to 150 ° C).

The heating jacket 12 conveys heat generated in the boiler 11 to the reactor 10 and is in the form of a circulation tube through which the heat exchange medium circulates and is wound around the outside of the reactor 10, for example. Further, the heat insulating material 13 is covered on the periphery of the heating jacket 12 so that the heat of the heating jacket 12 is not lost.

The reactor 10 is equipped with a stirrer 14 to speed up the separation of the manure and to increase the separation efficiency. The stirrer 14 is rotated by a motor to evenly stir the manure put into the reactor 10 so that the heat is rapidly and uniformly transferred to all the moisture.

The reactor 10 is a tubular structure provided with an inlet for the manure, a discharge port for the sludge, and a discharge port for the gas.

The dryer 20 is connected to the sludge discharge port of the reactor 10 through a pipeline (constituted by an open / close valve), and receives sludge separated from the reactor 10 to dry the sludge. That is, the gas is separated through the reactor 10, but some moisture will be contained in the sludge, and the sludge is dried for treatment of the sludge. In the present invention, the heat of the boiler 11 or the heat supplied to the reactor 10 (hereinafter referred to as the heat passing through the heat exchanger 30 after passing through the reactor 10, for example) is used to dry the sludge Explanations] directly or indirectly.

By using the heat applied to the present invention without using a separate heat source, the size of the equipment can be reduced and the manufacturing cost can be reduced.

The dryer 20 is configured to dry the sludge supplied from the reactor 10 using the heat that has passed through the heat exchanger 30 and to discharge the dried sludge.

The heat exchanger 30 increases the purity of the gas by vaporizing moisture contained in the gas by heat-exchanging the gas that has been phase-changed and separated through the reactor 10. The heat source used in the heat exchanger 30 may be a separate heat source, but uses a heat source supplied to the reactor 10. That is, the heat exchanger 30 is connected to the heating jacket 12 through the heat exchange pipe 31 to exchange heat with the gas flowing into the heat exchanger 30, and the heat exchange pipe 31 is connected to the dryer 20 And supplies the heat necessary for drying.

That is, the heat generated in the boiler 11 flows into the circulation system of the boiler 11, the heating jacket 12, the heat exchange pipe 31 of the heat exchanger 30, the dryer 20, and the boiler 11.

The heat exchanger 30 is not necessarily applied and is selectively applied as required, that is, the reactor 10 and the cyclone 40 may be directly connected, or the heating jacket 12 may be directly connected to the dryer 20 have.

The cyclone 40 receives the gas passing through the heat exchanger 30 and separates the particulate matter (which may be moisture) contained in the gas.

The condenser 50 condenses the gas into which the particulate matter has been separated through the cyclone 40 (supplied to the condenser 50 so as to be condensable) into the liquid, and the coolant and the gas are heat-exchanged through the cooler 51 Thereby condensing.

The cooler 51 includes a compressor 51a and a cooling water tank 51b in which cooling water for heat exchange with the heat exchange medium cooled through the compressor 51a is stored; a cooling water supply pipe 51c for circulating the cooling water to the condenser 50; And a coolant pump 51d for circulating the coolant. The temperature of the cooling water for condensation in the condenser 50 may be 10 to 20 占 폚.

The water collecting tank (60) receives and stores water generated in the condenser (50), the gas-liquid separator (70), and the liquefaction tank (80).

The water stored in the water collecting tank (60) uses urine as a starting material, and since the urine itself is not toxic, it can be discharged. Accordingly, the water stored in the water collecting tank 60 can be naturally discharged. In the present invention, water stored in the water collecting tank 60 is supplied to the liquefaction tank 80 and used for liquefaction of the gas.

Therefore, the water stored in the water collecting tank (60) is cooled through the cooler (81) in order to use it for liquefaction of the gas. The cooling temperature of the water stored in the water collecting tank 60 may be 10 to 20 ° C.

Even if the water stored in the water collecting tank (60) is cooled and used as cooling water, only temperature is changed and natural discharge is possible.

The gas-liquid separator 70 conveys the gas not condensed in the condenser 50 to the liquefaction tank 80, and is selectively applicable. The gas-liquid separator 70 may have a structure similar to that of a conventional gas-liquid separator and may have a structure in which a film for blocking the flow of liquid (rising) is provided therein. The liquid separated in the gas-liquid separator (70) is stored in the water collecting tank (60).

The liquefaction tank 80 is provided with a multi-stage shelf 81 and a cap 82 therein. The liquefier tank 80 has an inlet port through which the gas flows, an outlet through which liquid is discharged (discharged to the water collecting tank 60) .

The shelf 81 is provided with a hole through which the gas passes and the cap 82 is formed in connection with the hole of the shelf 81 and interferes with the flow of the gas so that the liquid falls down and the bottom Lt; / RTI >

The caps 82, which are respectively provided in the multi-stage shelves 81, are arranged in a zigzag shape, for example, in different positions in order to lengthen the residence time of the gas.

The cooling water spraying means 83 for liquefying the gas introduced into the liquefaction tank 80 atomizes the cooling water stored in the water collecting tank 60 into the liquefaction tank 80 and the cooling water supply pipe 83a connected to the water collecting tank 60, A cooling water pump 83b for pumping the cooling water in the water collecting tank 60, and a spray nozzle 83c for spraying the cooling water.

The above-described components are connected to a conduit for transferring a liquid or a gas and require power for transferring the liquid and the gas to the respective components. In the present invention, a vacuum pump is interposed between the condenser 50 and the gas- (90). The vacuum pump 90 causes the gas separated after the phase change in the reactor 10 to flow through the heat exchanger 30 through the cyclone 40 and the condenser 50 and then to the gas-liquid separator 70 and the liquefaction tank 80 . Of course, in the present invention, the flow of the liquid or the gas is not limited to the vacuum pump 90, and all those that perform equivalent functions are usable.

The method of treating livestock manure and wastewater according to the present invention is as follows.

1. Separation of solid sludge and gas.

The reactor 10 maintains the reaction temperature inside through the heating jacket 12 and the manure stored in the manure tank 1 is injected into the reactor 10 in a predetermined amount and then sealed (gas is circulated through the heat exchanger 30) The line being conveyed to open is open. The stirrer 14 is driven to stir the manure put into the reactor 10, and water (urine) is vaporized into gas by the reaction temperature in this process. That is, solid sludge remains on the bottom of the reactor 10 and the gas is transferred to the heat exchanger 30 through the pipeline.

2. Heat exchange.

In the reactor 10, the phase-change gas is transferred to the heat exchanger 30 using moisture as a starting material.

The heat exchanger 30 circulates the heat exchange medium having passed through the heating jacket 12 and of course has a temperature lower than that supplied to the reactor 10 because heat exchange is performed while passing through the reactor 10, 30), heat exchange between the heat exchange medium and the gas is sufficiently performed, and therefore, the non-vaporized moisture is phase-changed into gas.

On the other hand, the solid sludge remaining in the reactor 10 is conveyed to the dryer 20 and dried by the heat (heat passed through the heat exchanger 30) supplied to the dryer 20.

3. Separation of particulate matter.

The gas passing through the heat exchanger 30 passes through the cyclone 40 and the particulate matter contained in the gas is sorted by the centrifugal force and the particulate matter is accumulated at the bottom of the cyclone 40, 50).

4. Condensation.

The particulate matter selected through the cyclone 40 is delivered to the condenser 50.

The condenser 50 circulates the cooling water through the cooler 51 to maintain the condensing environment, so that the gas condenses into the liquid as it passes through the condenser 50.

The condensed water stored in the condenser (50) is transferred and stored in the water collecting tank (60).

5. Separation of gas and liquid.

The gas is condensed through the condenser 50 and some gases can not be condensed due to various conditions such as the size of the condenser 50. Such gas is passed through the gas-liquid separator 70 to be gas-liquid separated, Lt; / RTI >

6. Liquefaction.

The gas discharged from the gas-liquid separator 70 passes through the liquefaction tank 80. In this process, the gas exchanges with the liquid through heat exchange between the cooling water sprayed by the cooling water spraying means 83 and the gas, 81, the residence time of the gas is prolonged and all the gas is liquefied on the structure of the cap 82.

10: reactor, 11: boiler
12: Heating jacket, 13: Insulation
14: stirrer, 20: dryer
30: heat exchanger, 40: cyclone
50: condenser, 60: water collecting tank
70: gas-liquid separator, 80: liquefaction tank
90: Vacuum pump,

Claims (12)

A reactor (10) for injecting manure to heat the manure so as to phase-convert water into gas and separate the solid sludge into gas;
A cyclone 40 for receiving the phase-changed gas in the reactor and separating the particulate matter contained in the gas;
A heat exchanger (30) receiving the phase-changed gas in the reactor, vaporizing moisture contained in the gas through heat exchange and supplying the gas to the cyclone;
A condenser 50 for condensing particulate matter separated through the cyclone;
A water collecting tank (60) for storing condensed liquid in the condenser;
And a liquefaction tank (80) for liquefying the gas which has not been condensed in the condenser. delete [2] The apparatus according to claim 1, wherein the heat exchanger exchanges heat with water supplied to the heat exchanger through the heat supplied to the reactor. [4] The apparatus according to claim 3, further comprising a drier (20) for receiving and drying the solid sludge remaining in the reactor, wherein the drier receives the heat passing through the heat exchanger and dries the solid sludge And a wastewater treatment device. delete [3] The apparatus of claim 1, further comprising: a gas supply unit connected between the condenser and the liquefaction tank for separating the gas into a liquid and a liquid, supplying the gas to the liquefaction tank, Liquid separator, wherein the water collecting tank cools the liquid stored through the cooler and stores the liquid as cooling water, and the liquefaction tank liquefies the gas introduced into the liquefaction tank by spraying the cooling water stored in the water collecting tank. Manure and wastewater treatment system. delete The liquefying tank according to claim 1, wherein the liquefaction tank comprises: a shelf (81) provided with a plurality of holes and provided with a plurality of holes; an upper portion of the shelf is formed to communicate with the holes of the shelf, And a cap (82) for dropping the liquid. A first step of separating a solid sludge and a gas by heating the manure to vaporize moisture into the gas;
A second step of separating the particulate matter contained in the gas by centrifugal force after applying heat to the gas separated by the phase change through the first step and vaporizing the non-vaporized water in the first step;
A third step of condensing the gas through heat exchange between the gas and the cooling medium through the second step to collect the condensed water;
And a fourth step of liquefying the gas which has not been condensed through the third step. delete [12] The method of claim 9, further comprising a drying step of drying the solid sludge separated in the first step, wherein the solid sludge is dried by receiving the heat exchange medium used in the first step Of livestock manure and wastewater treatment. delete

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