KR100401983B1 - Manufacturing method of coal briquettes - Google Patents
Manufacturing method of coal briquettes Download PDFInfo
- Publication number
- KR100401983B1 KR100401983B1 KR10-1998-0042595A KR19980042595A KR100401983B1 KR 100401983 B1 KR100401983 B1 KR 100401983B1 KR 19980042595 A KR19980042595 A KR 19980042595A KR 100401983 B1 KR100401983 B1 KR 100401983B1
- Authority
- KR
- South Korea
- Prior art keywords
- coal
- weight
- pulverized coal
- coal briquettes
- briquettes
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
- C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
- C10L5/14—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
본 발명은 미분탄에 바인더를 첨가하여 성형탄을 제조하는 방법에 관한 것이며; 그 목적은 대량취급이 곤란하고 연화온도가 높은 기존의 고체물질 바인더 대신, 대량취급이 용이한 액상의 고분자 에멜젼수지를 사용하여 가열하지 않고 성형함으로써 파손율이 낮고 취급이 용이한 성형탄의 제조방법을 제공함에 있다.The present invention relates to a method for producing coal briquettes by adding a binder to pulverized coal; Its purpose is to manufacture coal briquettes with low breakage rate and ease of handling by molding without heating by using liquid polymer emulsion resins that are easy to handle in bulk, instead of conventional solid binders that are difficult to handle in large quantities and have high softening temperatures. In providing.
상기와 같은 목적을 갖는 본 발명은,The present invention having the above object,
미분탄을 가압성형하여 성형탄을 제조하는 방법에 있어서,In the method for producing coal briquettes by press molding the pulverized coal,
고분자수지의 분산농도가 물에 대하여 5-60중량%범위가 되도록 유화중합하여Emulsified and polymerized so that the dispersion concentration of the polymer resin is in the range of 5-60% by weight with respect to water.
-20∼40℃의 유리전이온도를 갖는 고분자 에멜젼 수지용액을 얻는 단계; 및Obtaining a polymer emulsion resin solution having a glass transition temperature of -20 to 40 ° C; And
상기 미분탄 100중량부에 대하여 상기 고분자에멜젼 수지용액을The polymer emulsion resin solution was added to 100 parts by weight of the pulverized coal.
5-20중량부로 첨가하여 가압성형하는 단계;를5-20 parts by weight of the addition step of pressing;
포함하여 이루어지는 성형탄의 제조방법에 관한 것을 그 기술적요지로 한다.The technical subject matter of the manufacturing method of the coal briquettes which contain is included.
Description
본 발명은 미분탄에 바인더를 첨가하여 성형탄을 제조하는 방법에 관한 것으로, 보다 상세히는, 액상의 고분자에멜젼 수지용액를 바인더로 활용함으로서 가열하지 않고 성형탄을 제조하는 방법에 관한 것이다.The present invention relates to a method for producing coal briquettes by adding a binder to pulverized coal, and more particularly, to a method for producing coal briquettes without heating by utilizing a liquid polymer emulsion resin solution as a binder.
제철업에 부속된 코렉스공정은 석탄을 바로 연료로 사용하므로 연료 사용면에서 많은 장점을 가진 것으로 알려져 있다. 연료로 사용되는 석탄중에서 약 8mm이하의 미분탄은 용융로내에서 충분히 연소되지 못하고 용융로 외부로 배출되어 집진기에 포집되고, 과다할 경우 공정내에서 불균형을 초래하므로 사용에 제약을 받게 된다. 또한, 미분탄은 보관 또는 운반중에 바람에 의하여 다량의 먼지를 발생시켜 주변에 먼지공해를 일으키고 저장물의 손실을 가져오며, 강우시에는 하천이나 바다로 흘러들어가 물을 오염시키는 원인이 되기도 한다.The Corex process, which is attached to the steel industry, is known to have many advantages in terms of fuel use because coal is directly used as fuel. Pulverized coal of about 8mm or less in coal used as fuel is not sufficiently burned in the melting furnace, is discharged to the outside of the melting furnace, is collected in the dust collector, and excessively causes the imbalance in the process, which is restricted in use. In addition, pulverized coal generates a large amount of dust by wind during storage or transportation, causing dust pollution and loss of stored matters, and during rainfall, it may flow into rivers or seas and cause water pollution.
따라서, 미분탄에 점결력이 높은 바인더를 첨가하고 가압성형하여 일정 크기의 성형탄을 제조하고 있다. 미분탄을 성형탄으로 제조하는 종래의 방법은, (1)피치를 바인더로하여 성형탄을 제조하는 방법과 (2)전분(starch)을 바인더로 하여 성형탄을 제조하는 방법이 알려져 있다.Therefore, a coal briquette having a predetermined size is manufactured by adding a high coking force binder to pulverized coal and pressing. Conventional methods for producing pulverized coal from coal briquettes are known (1) a method of producing coal briquettes using pitch as a binder and (2) a method of producing coal briquettes using starch as a binder.
(1)피치를 바인더로 하여 성형탄을 제조하는 방법은, 미분탄에 연화점 60-80℃의 피치를 5-10% 첨가하여 충분히 혼합하고 이것을 70-90℃의 온도로 유지하여 가압성형하는 것으로, 용융상태로 미분탄중에 균일하게 분산된 피치가 성형후 연화온도이하로 냉각되어 성형탄이 제조된다.(1) A method of manufacturing coal briquettes using pitch as a binder is performed by adding 5-10% of a softening point of 60-80 ° C. to a fine coal and mixing it sufficiently, keeping it at a temperature of 70-90 ° C. to melt it. The pitch uniformly dispersed in the pulverized coal in the state is cooled to below the softening temperature after molding to produce coal briquettes.
(2)전분을 바인더로 하여 성형탄을 제조하는 방법은, 미분탄에 연화점 120-170℃의 전분을 5-10% 첨가하여 충분히 혼합하고 이것을 150-200℃의 온도로 유지하여 가압성형하여 성형탄을 제조하는 방법이다.(2) A method of manufacturing coal briquettes using starch as a binder is performed by adding 5-10% of starch at a softening point of 120-170 ° C. to pulverized coal and sufficiently mixing the mixture, maintaining the temperature at a temperature of 150-200 ° C. to produce coal briquettes. That's how.
이와 같은 종래의 방법들은, 바인더를 가열하여 용융하고 미분탄과 함께 성형한 다음 냉각함으로써, 바인더에 의해 미분탄 입자들을 강고하게 결합한 성형탄을 얻을 수 있으며, 이 성형탄은 이송취급에 대하여 충분한 기기적강도를 갖는 것으로 알려져 있다.Such conventional methods are capable of obtaining coal briquettes in which coal powders are firmly bonded to the coal briquettes by heating and melting the binder, forming together with the pulverized coal, and cooling, and the coal briquettes have sufficient mechanical strength for transport handling. It is known.
그러나, 종래의 바인더들은 모두 고체물질이므로 이송등 기기력에 의한 대량취급이 어렵다는 문제가 있다. 수십톤 이상의 성형탄 생산을 요구하는 제철소의 코렉스 작업같은 대규모 공업에서는 원료야드로 부터 불출하고 저장조로 부터의 이송 등이 필수적이므로 대량취급성이 용이한 것이 좋다. 특히, 피치의 경우 하절기에 연화되어서 대량 취급이 거의 불가능에 가깝다.However, since the conventional binders are all solid materials, there is a problem that it is difficult to handle a large amount by the mechanical force such as transfer. In large industries, such as the corex work of steel mills that require the production of more than tens of tons of coal briquettes, it is desirable to handle large quantities because it is necessary to discharge from the raw material yard and transfer from the storage tank. In particular, the pitch softens in the summer, making mass handling almost impossible.
또한, 이들 바인더들은 연화온도가 높아 가압성형공정에서 가열건조설비가 추가되는 문제가 있다. 특히, 연화온도가 더욱 높은 전분의 경우 약 120℃이상의 온도로 가열해야 하는데, 이 경우 미분탄도 가열되므로, 4-10%의 수분을 함유하는 미분탄의 수분의 상당량을 증발시키기 위한 막대한 가열건조설비와 경비가 필요하게 되므로 실용적이지 못하다.In addition, these binders have a high softening temperature, which causes a problem in that a heating and drying equipment is added in the press molding process. In particular, starch with a higher softening temperature should be heated to a temperature of about 120 ° C. or more. In this case, pulverized coal is also heated, so that a huge heating and drying facility for evaporating a considerable amount of water of pulverized coal containing 4-10% of water and It is not practical because it requires expenses.
그리고, 바인더의 연화온도 이상으로 가열하지 않고 가압성형하는 경우 예컨대, 용융된 바인더를 미분탄에 첨가하는 경우 바인더는 미분탄입자에 접촉되어 고화되지만, 균일하게 분산되는 것이 아니라 극히 부분적으로 결함하여 미분탄중에 편재하기 때문에 성형탄의 품질은 불안정하게 되므로 가압성형공정에서 가열공정이 행해진다.In the case of press molding without heating above the softening temperature of the binder, for example, when the molten binder is added to the pulverized coal, the binder is solidified by contacting the pulverized coal particles. Therefore, since the quality of coal briquettes becomes unstable, the heating step is performed in the press molding step.
이에, 본 발명자들은 상기한 문제점을 해결하기 위하여 연구와 실험을 행한 결과, 액상의 고분자에멜젼 수지용액을 사용하면 그 해결이 가능하다는 것을 확인하고 본 발명을 제안하게 이르렀다.Accordingly, the present inventors conducted research and experiments to solve the above problems, and as a result, it was confirmed that the solution could be solved by using a liquid polymer emulsion resin solution and came to propose the present invention.
본 발명은 대량취급이 곤란하고 연화온도가 높은 기존의 고체물질 바인더 대신, 대량취급이 용이함은 물론 가열하지 않고 성형이 가능한 액상의 고분자 에멜젼수지를 사용하여 파손율이 낮고 취급이 용이한 성형탄의 제조방법을 제공하는데, 그 목적이 있다.The present invention uses a liquid polymer emulsion resin that is easy to handle in large quantities and can be molded without heating, instead of a conventional solid material binder that is difficult to handle in large quantities and has a high softening temperature. To provide a manufacturing method, the object is.
상기 목적을 달성하기 위한 본 발명의 성형탄 제조방법,Coal briquette manufacturing method of the present invention for achieving the above object,
고분자수지의 분산농도가 물에 대하여 5-60중량%범위가 되도록 유화중합하여Emulsified and polymerized so that the dispersion concentration of the polymer resin is in the range of 5-60% by weight with respect to water.
-20∼40℃의 유리전이온도를 갖는 고분자 에멜젼 수지용액을 얻는 단계; 및Obtaining a polymer emulsion resin solution having a glass transition temperature of -20 to 40 ° C; And
상기 미분탄 100중량부에 대하여 상기 고분자에멜젼 수지용액을The polymer emulsion resin solution was added to 100 parts by weight of the pulverized coal.
5-20중량부로 첨가하여 가압성형하는 단계;를 포함하여 구성된다.5-20 parts by weight of the press forming step; comprising a.
이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.
본 발명은 액상의 고분자에멜젼 수지용액을 바인더로 이용하여 미분탄을 가열하지 않고 성형탄을 제조하는데, 그 특징이 있다. 본 발명에 적용되는 미분탄은 코렉스공정에서 입도관리규격인 약 8mm이하의 것이면 가능하며, 보다 바람직하게는 성형탄의 제반특성을 고려할 때 약 3.5mm이하의 미분탄이다.The present invention uses a liquid polymer emulsion resin solution as a binder to produce coal briquettes without heating pulverized coal. The pulverized coal applied to the present invention may be one having a particle size management standard of about 8 mm or less in the Korex process, and more preferably, pulverized coal of about 3.5 mm or less in consideration of various characteristics of the coal briquettes.
본 발명에 따라 성형탄제조에 이용되는 바인더는 고분자에멜젼 수지용액으로, 이 수지용액은 수지모노머를 계면활성제등과 같은 유화제와 함께 물에 분산하여 유화중합시키거나 또는 수지모노머와 상용성이 있는 용매와 함께 물에 분산하여 유화중합처리하여 고분자수지용액을 제조한다. 고분자수지에 대한 유화제와 용매는당분야에서 잘 알려져 있다.The binder used in the production of coal briquettes according to the present invention is a polymer emulsion resin solution, which is a solvent which is polymerized by dispersing a resin monomer in water together with an emulsifier such as a surfactant or the like and is compatible with the resin monomer. It is dispersed in water together with emulsion polymerization to prepare a polymer resin solution. Emulsifiers and solvents for polymer resins are well known in the art.
상기와 같이 유화중합하여 고분자에멜젼수지를 얻는데, 이 수지용액은 유리전이온도가 -20∼40℃인 것이 바람직하다. 유리전이온도가 -20℃이하로 낮으면 성형탄의 강도가 약하여 물성에 여러 가지 문제가 생길 우려가 크며, 40℃이상으로 높을 경우에는 바인더의 수축과 딱딱한 피막물성에 의하여 균열이 발생될 우려가 크기 때문이다.The polymer emulsion resin is obtained by emulsion polymerization as described above, and the resin solution preferably has a glass transition temperature of -20 to 40 ° C. If the glass transition temperature is lower than -20 ° C, the strength of coal briquettes is weak, which may cause various problems in physical properties. If the glass transition temperature is higher than 40 ° C, there is a possibility of cracking due to binder shrinkage and hard film properties. Because.
또한, 고분자 에멜젼수지를 미분탄과 혼합하는 경우에 잘 섞이게 하기 위하여서는 유동성이 필요로 하며, 이에 영향을 미치는 요소는 고분자수지의 분산농도이다. 이러한 고분자수지의 분산농도는 사용하는 고분자 수지의 종류, 유화제 및 용매의 종류에 의해 달라지므로, 이를 고려하여 분산농도가 5-60중량%가 되도록 유화중합한다. 그 이유는 분산농도가 물에 대하여 5중량%이하일 경우에는 고분자 수지의 고형분 양이 적음으로 인하여 성형탄이 충분한 성능을 발휘하지 못하는 경우가 발생하고, 60중량% 이상일 경우에는 고분자 에멜젼수지의 저장안정성이 저하되며 미분탄과 혼합하는 경우에 작업성이 떨어지게 되므로 고분자 에멜젼수지의 분산농도는 물에 대하여 5-60중량% 범위로 제한함이 바람직하다.In addition, in order to mix well when the polymer emulsion resin is mixed with pulverized coal, fluidity is required, and the factor influencing this is the dispersion concentration of the polymer resin. Since the dispersion concentration of the polymer resin varies depending on the type of polymer resin used, the type of emulsifier and the solvent, the emulsion concentration is polymerized so that the dispersion concentration is 5-60% by weight. The reason is that when the dispersion concentration is less than 5% by weight of water, the coal briquettes may not exhibit sufficient performance due to the small amount of solids of the polymer resin, and when the concentration is higher than 60% by weight, the storage stability of the polymer emulsion resin Since the lowering and the workability is reduced when mixed with pulverized coal, the dispersion concentration of the polymer emulsion resin is preferably limited to the range of 5-60% by weight relative to water.
본 발명에 적용되는 고분자수지로는 스틸렌, 부타디엔, 스틸렌-부타디엔고무, 부틸고무, 네오프렌고무, 니트릴고무, 아스팔트, 비닐아세테이트, 염화비닐, 아크릴레이트(예를들면, 메틸아크릴레이트, 에틸아크릴레이트, 프로필아크릴레이트, 부틸아크릴레이트등), 메타아크릴레이트(예를들면, 메틸메타아크릴레이트, 에틸메타아크릴레이트, 프로필메타아크릴레이트, 부틸메타아크릴레이트, 2-에틸헥실메타아크릴레이트등) 및 이들의 공중합물로 이루어지는 그룹중 선택된 1종 또는 2종이상을 사용함이 바람직하다. 보다 바람직하게는 스틸렌과 부타디엔의 공중합체(고형분 48-52%)가 내충격성이 우수하여 좋다. 이때 스틸렌과 부타디엔의 공중합체 에멜젼용액의 분산농도는 경제성을 고려하여 10-20%로 하는 것이 좋다.Polymer resins applied to the present invention include styrene, butadiene, styrene-butadiene rubber, butyl rubber, neoprene rubber, nitrile rubber, asphalt, vinyl acetate, vinyl chloride, acrylate (for example, methyl acrylate, ethyl acrylate, Propyl acrylate, butyl acrylate, etc.), methacrylate (e.g., methyl methacrylate, ethyl methacrylate, propyl methacrylate, butyl methacrylate, 2-ethylhexyl methacrylate, etc.) and these It is preferable to use one or two or more selected from the group consisting of copolymers. More preferably, the copolymer of styrene and butadiene (solid content 48-52%) is excellent in impact resistance. In this case, the dispersion concentration of the copolymer emulsion solution of styrene and butadiene may be 10-20% in consideration of economical efficiency.
상기와 같은 고분자에멜젼 수지용액을 미분탄에 첨가하여 가압성형하는데, 그 첨가량은 미분탄 100중량부에 대하여 5-20중량부로 한정하는 것이 좋다. 고분자에멜젼 수지용액의 첨가량이 5중량부 미만에서는 미분탄중에 충분히 있지 못하여 성형탄 강도에 문제가 생기는 경우가 있으며, 20중량부를 초과하는 경우에는 미분탄과 혼합시에 부착 등의 장애를 일으키기 쉬운 문제가 발생되기도 한다.The polymer emulsion resin solution as described above is added to the pulverized coal and press-molded, but the amount thereof is preferably limited to 5-20 parts by weight based on 100 parts by weight of the pulverized coal. If the added amount of the polymer emulsion resin solution is less than 5 parts by weight, the coal briquette strength may be insufficient because it is not sufficiently contained in the pulverized coal, and if it exceeds 20 parts by weight, problems such as adhesion may occur when mixed with pulverized coal. Sometimes.
본 발명에 따라 실온에서 액상을 유지하여 대량취급이 용이한 -20∼40℃의 유리전이온도를 가진 고분자에멜젼 수지용액을 바인더로서 미분탄에 5-20중량부 첨가하고 미분탄을 실온에서 혼합하면 바인더는 액상으로 미분탄중에 충분히 균일하게 분산 혼합되어 이것을 가압성형하면 바인더인 고분자에멜젼수지가 미분탄입자를 결합하여 물성이 양호한 성형탄을 얻을 수 있다.In accordance with the present invention, a high-molecular emulsion resin solution having a glass transition temperature of -20 to 40 ° C., which is easy to be handled in a large quantity by keeping the liquid at room temperature, is added to the powdered coal as 5 to 20 parts by weight of coal powder and mixed with the powdered coal at room temperature. When the mixture is sufficiently uniformly dispersed in the pulverized coal in the liquid phase and press-molded, it is possible to obtain coal briquettes having good physical properties by combining the fine pulverized coal particles with the polymer emulsion resin as a binder.
이하, 본 발명을 실시예를 통하여 보다 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples.
3.4mm이하의 Mt Thorley 미분탄에 바인더로서 고분자에멜젼 수지용액을 혼합하여 실온에서 가압프레스를 사용하여 620㎏/㎠으로 가압하고 직경 35mm, 두께 20mm의 원기둥모양의 성형탄을 얻었다. 이 성형탄의 수분함량이 2%이하가 되도록 건조시킨 다음에 압축강도, 충격강도, 낙하강도를 측정하였다.The polymer emulsion resin solution as a binder was mixed with 3.4 mm or less of Mt Thorley pulverized coal and pressed at 620 kg / cm 2 using a pressurized press at room temperature to obtain cylindrical coal briquettes having a diameter of 35 mm and a thickness of 20 mm. The coal briquettes were dried to have a water content of 2% or less, and then the compressive strength, impact strength, and drop strength were measured.
압축강도는 만능인장시험기의 압축모드에서 Cross-head 1mm/min의 속도로 압축하였을 때 최대강도로 측정하였다. 충격강도는 50cm의 높이에서 1.000g의 충격체를 성형탄위로 떨어뜨린후에 9.5mm이상 크기의 성형탄 잔존율을 하기식과 같이 평가하였으며, 낙하강도는 15m 높이에서 성형탄을 지면에 떨어뜨린후에 하기식과 같이 9.5mm이상 크기의 성형탄 잔존율로 낙하강도를 평가하였다.The compressive strength was measured at the maximum strength when compressed at the speed of cross-head 1mm / min in the compression mode of the universal tensile tester. The impact strength was evaluated by the following formula after dropping 1.000g impact body on the coal briquettes at a height of 50cm as shown in the following equation. Drop strength was evaluated with residual coal briquettes of size not less than mm.
[발명예 1]Invention Example 1
미분탄 100중량부에 대하여 유리전이온도가 18℃인 스틸렌-부타디엔 공중합체(분산농도: 10중량%)에멜젼 용액을 10중량부를 첨가한 미분탄을 실온에서 가압성형하여 성형탄을 제조하였다.Coal briquettes were prepared by press-molding pulverized coal at room temperature with 10 parts by weight of a styrene-butadiene copolymer (dispersion concentration: 10% by weight) immersion solution having a glass transition temperature of 18 ° C. to 100 parts by weight of pulverized coal.
[발명예 2]Invention Example 2
미분탄 100중량부에 대하여 유리전이온도가 26℃인 스틸렌-부타디엔 공중합체(분산농도: 10중량%)에멜젼 용액을 10중량부를 첨가한 미분탄을 실온에서 가압성형하여 성형탄을 제조하였다.Coal briquettes were prepared by pressing a pulverized coal obtained by adding 10 parts by weight of an ethylene-butadiene copolymer (dispersion concentration: 10% by weight) immersion solution having a glass transition temperature of 26 ° C. to 100 parts by weight of pulverized coal at room temperature.
[비교예 1]Comparative Example 1
미분탄 100중량부에 대하여 물을 10중량부로 첨가한 미분탄을 실온에서 가압성형하여 성형탄을 제조하였다.Coal briquettes were manufactured by pressing a pulverized coal obtained by adding 10 parts by weight of water to 100 parts by weight of pulverized coal at room temperature.
[비교예 2]Comparative Example 2
미분탄 100중량부에 대하여 유리전이온도가 -33℃인 부틸아크릴레이트 공중합체(분산농도: 10중량%)에멜젼 용액을 10중량부로 첨가한 미분탄을 실온에서 가압성형하여 성형탄을 제조하였다.Coal briquettes were prepared by press-molding pulverized coal obtained by adding 10 parts by weight of an butyl acrylate copolymer (dispersion concentration: 10% by weight) of an emulsion solution having a glass transition temperature of −33 ° C. to 100 parts by weight of pulverized coal at room temperature.
[비교예 3]Comparative Example 3
미분탄 100중량부에 대하여 유리전이온도가 18℃인 스틸렌-부타디엔 공중합체(분산농도:10중량%)에멜젼 용액을 3중량부로 첨가한 미분탄을 실온에서 가압성형하여 성형탄을 제조하였다.Coal briquettes were prepared by pressing a pulverized coal obtained by adding 3 parts by weight of a styrene-butadiene copolymer (dispersion concentration: 10% by weight) immersion solution having a glass transition temperature of 18 ° C. to 100 parts by weight of pulverized coal at room temperature.
상기 표 1에서 알 수 있는 바와 같이, 본 발명의 범위를 만족하는 방법예 1-2의 경우는 압축강도, 충격강도, 낙하강도 우수하게 나타나는 반면에 본 발명의 범위를 만족하지 못하는 비교예1-3의 경우는 상기한 발명예의 경우에 비하여 성형탄의 강도가 낮음을 알 수 있다.As can be seen in Table 1, in the case of Method Example 1-2, which satisfies the scope of the present invention, the compressive strength, the impact strength, and the drop strength are excellent, while Comparative Examples 1-1 do not satisfy the scope of the present invention. In the case of 3, it can be seen that the strength of coal briquettes is lower than that of the above-described invention example.
상술한 바와 같이, 본 발명에 의하면 대량취급이 용이한 액상의 고분자에멜젼 수지용액을 바인더로 이용하여 성형탄을 제조할 수 있으며, 이에 따라 기존에 바인더의 취급곤란문제를 극복함은 물론, 무가열(無加熱)의 가압성형공정 도입으로 비용절감을 꾀할 수 있는 효과가 있는 것이다.As described above, according to the present invention, coal briquettes may be manufactured using a liquid polymer emulsion resin solution, which is easy to handle in a large quantity, as a binder, thereby overcoming the problem of handling a binder in the past, and of course, no heating. The introduction of a press molding process with no additives has the effect of reducing costs.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1998-0042595A KR100401983B1 (en) | 1998-10-12 | 1998-10-12 | Manufacturing method of coal briquettes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-1998-0042595A KR100401983B1 (en) | 1998-10-12 | 1998-10-12 | Manufacturing method of coal briquettes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20000025498A KR20000025498A (en) | 2000-05-06 |
| KR100401983B1 true KR100401983B1 (en) | 2003-12-18 |
Family
ID=19553747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-1998-0042595A KR100401983B1 (en) | 1998-10-12 | 1998-10-12 | Manufacturing method of coal briquettes |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100401983B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100407801B1 (en) * | 1999-08-23 | 2003-12-01 | 주식회사 포스코 | Method for briquetting using polymer binder |
| KR100468455B1 (en) * | 2000-12-19 | 2005-01-29 | 주식회사 포스코 | Coal briquette having high temperature property |
| KR101221851B1 (en) * | 2010-04-21 | 2013-01-15 | 한국에너지기술연구원 | Manufacturing method for solid fuel including the carbon source mixed with binder and solid fuel thereby |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025596A (en) * | 1973-10-03 | 1977-05-24 | The Dow Chemical Company | Method for pelletizing finely divided solids |
| US4415337A (en) * | 1982-05-05 | 1983-11-15 | Atlantic Richfield Company | Method for producing agglomerate particles from an aqueous feed slurry comprising finely divided coal and finely divided inorganic solids |
| US4515601A (en) * | 1982-05-03 | 1985-05-07 | Charters John E | Carbonaceous briquette |
| US4969928A (en) * | 1989-03-03 | 1990-11-13 | The United States Of America As Represented By The United States Department Of Energy | Combined method for simultaneously dewatering and reconstituting finely divided carbonaceous material |
| JPH10306288A (en) * | 1997-05-07 | 1998-11-17 | Keihan:Kk | Production of molded coal |
| KR20010046083A (en) * | 1999-11-10 | 2001-06-05 | 박찬구 | Massive method of the powder coal by using styrene-butadiene latex |
-
1998
- 1998-10-12 KR KR10-1998-0042595A patent/KR100401983B1/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025596A (en) * | 1973-10-03 | 1977-05-24 | The Dow Chemical Company | Method for pelletizing finely divided solids |
| US4515601A (en) * | 1982-05-03 | 1985-05-07 | Charters John E | Carbonaceous briquette |
| US4415337A (en) * | 1982-05-05 | 1983-11-15 | Atlantic Richfield Company | Method for producing agglomerate particles from an aqueous feed slurry comprising finely divided coal and finely divided inorganic solids |
| US4969928A (en) * | 1989-03-03 | 1990-11-13 | The United States Of America As Represented By The United States Department Of Energy | Combined method for simultaneously dewatering and reconstituting finely divided carbonaceous material |
| JPH10306288A (en) * | 1997-05-07 | 1998-11-17 | Keihan:Kk | Production of molded coal |
| KR20010046083A (en) * | 1999-11-10 | 2001-06-05 | 박찬구 | Massive method of the powder coal by using styrene-butadiene latex |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000025498A (en) | 2000-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10464848B2 (en) | Refractory binder system | |
| KR101259338B1 (en) | Formed coal using water-soluble binder and method for manufacturing the same | |
| RU2224007C1 (en) | Elevated-strength coal briquette and a method of fabrication thereof | |
| US8409322B2 (en) | Method for agglomerating industrial dust, in particular using a briquetting technique | |
| CA1038702A (en) | Method for pelletizing finely divided solids | |
| WO2020035691A1 (en) | Binder formulation | |
| WO2018088747A2 (en) | Composition for forming steelmaking dust briquet, and steelmaking dust briquet produced therefrom | |
| CN101619387B (en) | Low-temperature concretion adhesive for cold press iron coke and preparation method thereof | |
| KR100401983B1 (en) | Manufacturing method of coal briquettes | |
| JPH08506144A (en) | Slag defoaming composite material | |
| KR100407799B1 (en) | Method for manufacturing coal briquettes using polymer resin | |
| US5435813A (en) | Wet bulk density control of fine aggregates | |
| CA1284029C (en) | Agglomeration of coal fines | |
| US4585809A (en) | Resin binders for foundry molding sands | |
| US3316083A (en) | Briquetting of foundry materials | |
| KR100407801B1 (en) | Method for briquetting using polymer binder | |
| CN116043012A (en) | Sintering-free cold-bonded pellet for blast furnace and binder | |
| JPS63196689A (en) | Method of molding powdery coke | |
| US4639474A (en) | Monolithic refractory composition | |
| KR101198619B1 (en) | Method for Manufacturing of briquettes using coal and finecoal | |
| KR20230159701A (en) | pellet | |
| CN109439896B (en) | Preparation method of self-fluxing composite pellet | |
| US2895934A (en) | Resinous compositions from coal acids and alcamines and method for making composite products thereof | |
| KR20150126522A (en) | Briquettes using finecoal and the method for preparing the same | |
| KR20200081781A (en) | Method for Manufacturing of briquettes using coal and finecoal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20120921 Year of fee payment: 10 |
|
| FPAY | Annual fee payment |
Payment date: 20130930 Year of fee payment: 11 |
|
| FPAY | Annual fee payment |
Payment date: 20141002 Year of fee payment: 12 |
|
| FPAY | Annual fee payment |
Payment date: 20151002 Year of fee payment: 13 |
|
| LAPS | Lapse due to unpaid annual fee |