KR20170031434A

KR20170031434A - Biological Fuel Manufacturing Method Using Pig Excretion and Manufacturing Apparatus

Info

Publication number: KR20170031434A
Application number: KR1020150128953A
Authority: KR
Inventors: 박성덕; 이규성
Original assignee: 에너지기술서비스(주)
Priority date: 2015-09-11
Filing date: 2015-09-11
Publication date: 2017-03-21

Abstract

The present invention relates to a method and an apparatus for producing biological fuel using pig excrement, which conducts solid-liquid separation of pig excrement without discarding effluent water and converts each of a solid component and a liquid component into fuel, to reduce the amount of effluents and thereby prevent environmental pollution. The method of producing biological fuel using pig excrement, comprises: a step in which pig excrement is collected from a livestock farm, introduced into a storage tank (10), and stirred by a stirrer; a step in which the pig excrement in the storage tank (10) are transported to a sorting device (11) to separate impurities; a step in which the pig excrement separated from the impurities is transported to a dehydrator (14) and subjected to solid-liquid separation using the dehydrator (14); a step in which a dryer (15) is used to dry and optionally mold the solid component of the pig excrement formed by solid-liquid separation to produce a solid fuel; and a step in which the liquid component of the pig excrement formed by solid-liquid separation is mixed and stirred with a liquid fossil fuel, and purified to produce an emulsified oil.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a method for manufacturing biofuel using pig manure,

The present invention relates to a method and an apparatus for producing a biofuel using pig manure generated from a pig man, and more particularly, to a method for producing biofuel using pig manure produced by a pig man, The present invention relates to a method and apparatus for manufacturing biofuel using pig manure capable of increasing income of farm households and preventing environmental pollution by zeroing waste water discharge.

Generally, pig farms are raising a large number of pigs, and manure is produced at a rate of about 5 kg per pig.

As a result, complaints about odor are generated in the vicinity of pig farmers, and it is difficult to treat pig manure.

On the other hand, pigs are organic wastes containing feedstuffs that have not yet been digested, so they can be fueled.

Methods of treating pig manure include a composting method using sawdust, a treatment method using microorganisms, and a purification treatment method using fermentation.

In the case of the composting method using sawdust, it is necessary to purchase sawdust and there is a disadvantage that odor is generated in the composting process.

In addition, the treatment method using microorganisms has a problem that a stable treatment can not be expected due to the risk due to the so-called bulk phenomenon.

In addition, the purification treatment through fermentation requires not only the second anaerobic fermentation treatment after the first anaerobic fermentation treatment, but also the second fermentation treatment after the first anaerobic fermentation treatment, There is a disadvantage that a processing period is required and a large-scale processing facility is required.

In addition, in the case of a facility for purifying pig manure, the generation of various gases such as ammonia occurring in the treatment of manure and the corrosion problem adversely affect the surrounding environment. There is a problem.

In addition, there is a problem that a large amount of water is consumed in the process of treating pig manure, thereby causing various environmental pollution including river pollution.

On the other hand, interest in renewable energy is increasing in lieu of fossil fuels due to the unusual global climate. Accordingly, we are developing clean alternative energy using various methods such as solar, wind, hydro, and bio energy.

When fossil fuels are used, the ecosystem is disturbed and the health of people is compromised by the climate change caused by the greenhouse gases in the combustion process of fossil fuels.

Therefore, it is necessary to develop a technique to reduce the consumption of fossil fuel. As part of this, research is being carried out to produce alternative fuels by utilizing organic wastes such as livestock manure, food wastes, sludge, etc. .

On the other hand, as a result of investigation of prior art related to purification treatment of livestock manure and fueling technology of livestock manure, numerous patent documents were searched and some of them were as follows.

Patent Document 1 discloses a method of treating a waste manure having high organic matter concentration (35000 to 40000 mg / L) and difficulty in solid-liquid separation by flocculating the flocculant in the form of a foam by using an inorganic coagulant, physically dehydrating it, · Precipitate treatment to obtain a filtrate with an organic substance concentration of 1500 to 2000 mg / L, and this filtrate is put into an aeration tank, and microorganisms can be treated as aerobic treatment in a short period of time to below the water quality standard of effluent water to prevent water quality and environmental pollution The present invention relates to a poultry manure purification apparatus.

Patent Document 2 discloses a method of removing a large amount of odor by mixing strong alkaline active calcium hydroxide having a pH of 12 or more in swine manure which is difficult to treat due to its bad smell and mixed with urine and not separated from its odor, It is separated from digested manure in pigs by filtering net mesh of about 1 mm on each side. Un digested feed is recycled as feed after a little fermentation, digested material and urine are slightly aged, (Pig) manure treatment method which can prevent the recycling of resources and environmental pollution by using the method of the present invention.

Patent Literature 3 relates to a solid fueling apparatus using livestock manure, which sterilizes livestock manure to remove odor and harmful substances, dehydrates after solid-liquid separation, aerated fermentation of dried livestock manure and drying, . In addition, odor and harmful substances of dried livestock manure are removed, water content is lowered, pellets are formed, dried, and high efficiency solid fuel is produced. The polluted gas discharged during fermentation is mixed and burned to remove odor of polluted gas And the heat generated by the combustion can be utilized during drying, thereby improving the drying efficiency and the energy efficiency, and discloses a solid fueling apparatus using an animal manure.

Patent Document 4 proposes a solid-liquid separation device for solid-liquid separation of livestock manure, a fermentation device for drying and fermenting sludge from a solid-liquid separation device, a pellet molding device for pelletizing sludge from a fermentation device, A solid fuel storage device for storing the solid fuel from the drying device, a heater accommodating part formed at the lower part, and a heater for accommodating the solid fuel stored in the heater, A liquid livestock manure inlet provided at an upper portion of the receiving portion, a water vapor outlet provided at an upper side of the liquid livestock manure inlet, a sludge disposed at a lower side of the liquid livestock manure inlet, A main body having a heating / breathing section with an outlet; And a sludge discharging port for discharging the liquid sludge discharged from the solid-liquid separating device to the sludge discharging port of the main body, To the fermentation apparatus through the heating tank; A heater accommodated in the heater accommodating portion and heating the heater; A plurality of supporters provided on an inner circumferential portion of the main body so as to be positioned on an upper portion of the liquid-liquid animal manure inflow port of the main body; A plurality of elastic bodies accommodated in elastic receiving grooves of the support; A filter body having a frame-shaped mounting body which is disposed on the heating / breathing portion of the body so as to be movable up and down and which is seated on the elastic body, and a filter body provided inside the mounting body and which filters water vapor of the liquid livestock manure; And a plurality of vibrators installed on the main body and disposed on the upper portion of the filter mechanism to apply vibration to the filter mechanism, and a liquid feed pump for feeding the water vapor filtered by the filter mechanism of the liquid livestock manure processing device through the water vapor outlet of the main body And a liquid storage device for storing the liquid from the liquefaction device: the solid fuel can be produced by utilizing both the solid-liquid separated sludge and the liquid-liquid separated liquid manure Discloses a solid fueling apparatus which is capable of increasing utilization of animal manure, and which has excellent utilization of animal manure.

KR 10-2001-0009316 A KR 10-2002-0023842 A KR 10-2013-0124429 A KR 10-1408918 B1

It is an object of the present invention to provide a solid fuel and a liquid fuel using a pig manure that is difficult to purify and is a problem of a pig farmer.

Another object of the present invention is to provide a method and apparatus for manufacturing biofuel using pig manure capable of solving the problem of pig farming which is difficult to treat pig manure, contributing to income increase, and preventing contamination of surrounding environment .

In order to accomplish the above object, the present invention provides a method for manufacturing a biofuel using a pig manure, comprising the steps of collecting pig manure generated in a livestock farm, charging it into a storage tank, and stirring the mixture with a stirrer; Transferring the pig manure of the storage tank to a separator to separate the contaminants; Transferring the separated pig manure to a dehydrator and transferring the separated debris to a waste processor for recycling; Liquid separation of pig manure using a dehydrator; Drying the solid component of the pig produced by solid-liquid separation using a dryer, and then forming or unforming the solid component to produce a solid fuel; And mixing and stirring the liquid component of the swine urine generated by the solid-liquid separation with the liquid fossil fuel, and purifying the liquid component to produce the oil.

According to the method for producing a biofuel using a pig manure according to the present invention, the dryer is characterized in that the solid component of the pig manure is thermally hydrolyzed so that the water content thereof becomes 10% or less.

According to the method of manufacturing a biofuel using pig manure according to the present invention, diesel or heavy oil is used as the liquid fossil fuel, and the emulsion oil contains 25 to 35% by weight of the liquid component of the pig manure and the liquid fossil fuel 65 To 75% by weight of an emulsifier and 0.3 to 0.5% by weight of an emulsifier.

The apparatus for producing biofuel using pig manure according to the present invention comprises: a storage tank having a stirrer and storing pig manure collected from an animal husbandry farm; A sorter for separating contaminants from pig manure delivered from the storage tank by a pump; A waste disposer for treating the separated contaminants so as to be recyclable; A dehydrator for separating the contaminated pig manure into a solid component and a liquid component; A dryer for drying the solid component of the pig powder separated from the dehydrator to a moisture content of 10% or less; A molding machine for shaping a solid component of the dried pig powder into a predetermined shape to produce a solid fuel; A mixer for mixing the liquid component of the pig urine separated from the dehydrator with the liquid fossil fuel and the emulsifier to produce mixed oil; And a purifier for purifying the mixed oil to produce an emulsified oil as a biofuel.

According to the apparatus for producing biofuel using pig manure according to the present invention, the dryer has a closed structure to prevent diffusion of white smoke and malodor.

According to the apparatus for manufacturing a biofuel using pig manure according to the present invention, the dryer can be produced by using solid fuel produced in the molding machine or steam produced in a boiler using fuel oil produced from the purifier, And drying the component.

According to the method and apparatus for producing biofuel using pig manure according to the present invention, since solid fuel and liquid fuel are produced by solid-liquid separation in a state in which no water is added to pig manure, the pig farmhouse suffering from difficulty in processing pig manure Can be solved.

Further, the generated solid fuel and the liquid fuel can be used to increase the income of the farm household, and the wastewater does not occur, and the living environment of the surrounding environment is not adversely affected.

In addition, according to the method and apparatus for manufacturing a biofuel using pig manure according to the present invention, the dryer is formed in a closed structure to block offensive odors and produce steam for operating the dryer using the produced solid fuel and liquid fuel , It is possible to solve the problem of white smoke and odor generated in the drying process, and the amount of energy added to operate the boiler is minimized, thereby reducing operating costs.

In addition, according to the method and apparatus for producing biofuel using pig manure according to the present invention, it is possible to utilize the produced solid fuel and liquid fuel as an alternative fuel, thereby reducing the cost of purchasing fossil fuel.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart showing a method for producing a biofuel using a pig manure according to the present invention; FIG.
2 is a block diagram schematically showing an apparatus for manufacturing biofuel using pig manure according to the present invention.
3 is a reference view showing a dryer to which the present invention is applied.
FIG. 4 is a reference view showing the combustion pattern of the oil produced by the present invention. FIG.

Hereinafter, a method and apparatus for manufacturing biofuel using pig manure according to the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the method for producing a biofuel using pig manure according to the present invention comprises: (S10) collecting pig manure produced in an animal husbandry farm, charging it into a storage tank 10 and stirring the mixture with a stirrer; Transferring the swine manure of the storage tank 10 to the selector 11 to separate the contaminants and transferring the separated contaminants to the waste processor 13 for recycling (S20); A step S30 of transferring the pig manure from which the impurities are separated to the dehydrator 14 and then solid-liquid separation of the pig manure using the dehydrator 14; A step (S40) of drying solid components of pig fat generated by solid-liquid separation using a dryer (15), and then shaping or unforming the solid components to produce solid fuel; (S50) mixing and stirring the liquid component of the swine urine generated by the solid-liquid separation with the liquid fossil fuel, and purifying the mixed liquid to produce the oil.

Here, since most of the clogs separated by the separator 11 are organic materials such as sawdust, rice husks, and non-digested feed laid on the bottom of the housing, they are recycled through waste treatment.

Preferably, the dryer 15 thermally hydrolyzes the solid component of the pig manure such that the water content thereof is 10% or less. The dryer 15 is a device for heating the solid material of the pig manure by using steam generated from the boiler using the produced solid fuel or oil, Is more preferable.

It is preferable that diesel or heavy oil be used as the liquid fossil fuel for producing the oil.

The emulsified oil is prepared by mixing 25 to 35% by weight of a liquid component of pig urine, 65 to 75% by weight of a liquid fossil fuel and 0.3 to 0.5% by weight of an emulsifier, more preferably 29.7% 70% by weight of a liquid fossil fuel, and 0.3% by weight of an emulsifier.

As shown in FIG. 2, the apparatus for manufacturing biofuel using pig manure according to the present invention, to which the biofuel production method described above is applied, comprises a storage tank 10 for storing pig manure collected from a livestock farm, )Wow; A separator (11) for separating contaminants from pig manure delivered from the storage tank (10) by a pump (12); A reprocessor (13) for treating the separated contaminants so as to be recyclable; A dehydrator (14) for separating the contaminated pig manure into a solid component and a liquid component; A drier (15) for drying the solid component of the pig manure separated from the dehydrator (14) to a moisture content of 10% or less; A molding machine 16 for shaping a solid component of the dried pig manure into a predetermined shape to produce a solid fuel; A mixer 17 for mixing and stirring the liquid component of the pig manure separated from the dehydrator 14 with the liquid fossil fuel and the emulsifier to produce a mixed oil; And a purifier (18) for purifying the mixed oil to produce an emulsified oil as a biofuel.

Here, it is preferable that the dryer 15 is formed in an airtight structure so as to solve the problem of white smoke and odor generated when the manure is dried, and the air dryer of the airtight structure is shown in FIG. 3 have.

For this purpose, the steam produced by the boiler (not shown) is supplied to the dryer 15, and the boiler may be replaced with a solid fuel produced by the molding machine 16 or an oil emulsion discharged from the purifier 18, Is preferably used.

On the other hand, since the emulsion oil has a relatively high viscosity, it is difficult to use it in engines and the like, but there is no problem in using it in a combustor.

That is, as shown in FIG. 4, the combustion air is injected into the combustion chamber through the burner, and the combustion air is completely burned using the excess air introduced together, and steam or the like can be produced using the generated heat.

Although the method and apparatus for producing biofuel using pig manure have been described above, it is also possible to use animal waste, organic wastes other than pig manure, food wastes, sludge, biomass, and the like. Accordingly, the consumption of fossil fuel can be reduced by supplying the existing combustion apparatus as an alternative fuel for the fossil fuel.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be appreciated that many changes and modifications of the invention are possible without departing from the spirit and scope of the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

10 ... storage tank
11 ... selector
12 ... pump
13 ... reprocessor
14 ... dehydrator
15 ... dryer
16 ... molding machine
17 ... mixer
18 ... purifier

Claims

Collecting the swine manure generated in the livestock farming house, putting it into the storage tank 10, and stirring the swine manure with a stirrer;
Transferring the pig manure of the storage tank (10) to the sorter (11) and separating and removing the contaminants;
Transferring the pig manure from which the impurities are separated to the dehydrator 14, and then subjecting the pig manure to solid-liquid separation using the dehydrator 14;
Drying the solid component of the pig produced by the solid-liquid separation using the dryer (15), and then shaping or unforming the solid component to produce a solid fuel;
And mixing and stirring the liquid component of the swine urine generated by the solid-liquid separation with the liquid fossil fuel, and purifying the liquid component to produce an emulsion oil.

The method according to claim 1,
Wherein the dryer (15) thermally hydrolyzes the solid component of the pig manure such that the moisture content is 10% or less.

3. The method according to claim 1 or 2,
As the liquid fossil fuel, diesel or heavy oil is used,
Wherein the emulsion oil is produced by mixing 25 to 35% by weight of a liquid component of a pig manure, 65 to 75% by weight of a liquid fossil fuel and 0.3 to 0.5% by weight of an emulsifier, .

A storage tank (10) having a stirrer and storing pig manure collected at an animal husbandry farm;
A separator (11) for separating contaminants from pig manure delivered from the storage tank (10) by a pump (12);
A dehydrator (14) for separating the contaminated pig manure into a solid component and a liquid component;
A drier (15) for drying the solid component of the pig manure separated from the dehydrator (14) to a moisture content of 10% or less;
A molding machine 16 for shaping a solid component of the dried pig manure into a predetermined shape to produce a solid fuel;
A mixer 17 for mixing and stirring the liquid component of the pig manure separated from the dehydrator 14 with the liquid fossil fuel and the emulsifier to produce a mixed oil;
And a purifier (18) for purifying the mixed oil to produce emulsified oil as a biofuel.

5. The method of claim 4,
Further comprising a reprocessor (13) for treating the contaminants separated from the pig manure in the selector (11) so as to be recyclable.

5. The method of claim 4,
Wherein the dryer (15) is formed in a closed structure so as to prevent diffusion of white smoke and malodor.

7. The method according to any one of claims 4 to 6,
The dryer (15)
Wherein the solid component of the pig manure is dried using steam produced in a boiler using solid fuel produced in the molding machine (16) or emulsion oil produced in the purifier (18) as a fuel. Fuel production device.