KR20140014453A - Method of manufacturing natural flaky griphite by mechanical mill - Google Patents

Method of manufacturing natural flaky griphite by mechanical mill Download PDF

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KR20140014453A
KR20140014453A KR1020120080412A KR20120080412A KR20140014453A KR 20140014453 A KR20140014453 A KR 20140014453A KR 1020120080412 A KR1020120080412 A KR 1020120080412A KR 20120080412 A KR20120080412 A KR 20120080412A KR 20140014453 A KR20140014453 A KR 20140014453A
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graphite
water
primary
pure
cyclone
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KR101439536B1 (en
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엄재범
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주식회사 태삼진
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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/20Graphite
    • C01B32/205Preparation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/12Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces

Abstract

The present invention relates to a method for mass-producing natural flaky graphite in a pure physical manner. The method of the present invention comprises the steps of: a) pulverizing prepared graphite raw ore and selecting graphite with a size of 2 mm or smaller; b) grinding the selected graphite and then selecting graphite with 60 mesh or smaller; c) floating the selected graphite on water; d) polishing the floated graphite with ultrafine powder with 600-5,960 mesh and floating the pure graphite on water, followed by centrifugation and drying under the inert atmosphere; and e) passing the dried graphite through an air distributer, followed by vacuum packaging. According to the present invention, natural flaky graphite used as a raw material for a negative electrode material of a secondary battery, a flexible display using graphene, a flame-resistant fiber, and the like can be mass-produced in a manner of pure physical pulverization. [Reference numerals] (AA) 25 mm (1 inch passage); (BB) 5 mm passage; (CC) 2 mm passage; (DD) 0.2 mm passage; (S110) Graphite raw ore; (S120) Jaw crusher; (S130) Two-stage crusher (double); (S140) Sieve screen; (S150) Primary tube mill (grinding for 15-20 min); (S151) Chemical input Petroleum: 1 min/200 cc, Pine oil: 150 cc; (S160) Primary sand pump; (S170) Primary cyclone (pressure 1-3 K); (S180) Primary conditioner; (S181) 5-10 min, pH 9 (sodium bicarbonate input), Pine oil: 1 min/50-250 cc Petroleum: 1min/150-500 cc; (S190) Primary floaters (ten) RPM: 350-650; (S200) Primary concentrate (roughing); (S201) Tailing; (S202) Open-air storage yard (tailing yard)

Description

순수 물리적 방법에 의한 천연 인상 흑연의 대량 제조방법 {Method of manufacturing natural flaky griphite by mechanical mill}BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a method for producing natural graphite by natural pure graphite,

본 발명은 순순한 기계적 분쇄 방법에 의해서 순도 99% 이상의 마이크로급 천연 인상 흑연을 대량 생산하는 방법에 관한 것이다.
The present invention relates to a method for mass-producing micro-scale natural graphite impurities having a purity of 99% or more by a pure mechanical pulverization method.

천연 흑연인 인상 흑연은 상업적으로는 판상모양의 입자를 지칭하며, 퇴적암이 석류석 등급까지 변성작용을 받을 경우 생성된다. 모암은 주로 석영-운모 편암, 장석질 규암, 운모 규암, 편마암 및 대리암 등이며, 불순물로는 변성퇴적물에 통상적으로 나타나는 석영, 장석, 운모, 각섬석, 석류석 등이 있다. 이 불순물은 모두 부유선광으로 쉽게 분리 가능하나, 미립인 경우에는 흑연 가루가 표면에 흡착되어 부유선광 분리가 곤란한 경우도 있다. 일반적인 인상 흑연의 입자크기는 보통 1mm∼2.5cm 이며, 평균적으로 0.25cm 이다. 조립질은 -20∼+ 100 메쉬, 세립질은 -100∼+325 메쉬가 기준이며, 마다가스카르, 오스트리아, 노르웨이, 구소련, 중국이 주요 산출국이다.Natural graphite, impression graphite, is a commercial plate-like particle, which is produced when sedimentary rocks are metamorphosed to garnet grade. The main rocks are quartz-mica schist, feldspar quartzite, mica quartzite, gneiss and marble. Examples of impurities include quartz, feldspar, mica, hornblende and garnet which are commonly found in dense sediments. All of these impurities can be easily separated by flotation, but in the case of fine flotation, graphite powder is adsorbed on the surface and sometimes it is difficult to separate flotation light. Generally, the particle size of graphite impression is usually 1 mm to 2.5 cm, and on average 0.25 cm. Coarse quality is from -20 to +100 mesh, fine grain is from -100 to +325 mesh, and Madagascar, Austria, Norway, Soviet Union and China are the main destinations.

이와 같은 천연 흑연은 열과 전기의 양호한 전도체로써, 광범위한 온도에 안정한 광물이며 용융점이 3,650℃ 높아 뛰어난 내화재이다. 통상적으로, 인상 흑연은 탄소함량이 80 - 98%이며 내화재, 윤활재, 야금용 분말, 연필심, 코팅재, 2차전지의 음극재 등에 사용된다.Such natural graphite is a good conductor of heat and electricity. It is a stable mineral at a wide range of temperatures and is an excellent refractory material with a melting point of 3,650 ° C. Typically, graphite has a carbon content of 80-98% and is used in refractory materials, lubricants, powders for metallurgy, pencil lead, coating materials, and anode materials for secondary batteries.

현재, 전세계에서 개발된 순도 99% 이상의 고순도 흑연은 모두 화학적인 방법에 의해 제조되는 것으로, 이와 같은 흑연의 경우 산도가 높아 정밀 기계 부품이나 초정밀 전자 부품에 사용되는 경우 최종 제품의 품질 저하를 야기하는 치명적인 문제점이 있었다.
At present, high-purity graphite having a purity of 99% or more developed all over the world is produced by a chemical method. Such graphite has a high acidity and causes deterioration of the final product when it is used in precision mechanical parts or ultra- There was a fatal problem.

상기와 같은 문제점을 해결하고자 창출된 본 발명의 목적은, 순수한 물리적인 방법에 의해 고순도의 천연 인상 흑연을 대량 제조할 수 있는 방법을 제공함에 있다.An object of the present invention is to provide a method for mass-producing high-purity natural graphite impurities by a pure physical method.

또한 본 발명의 다른 목적은, 국내 천연 흑연 광산에서 채굴된 저품위의 원광석을 집광하여 고순도로 부유선광 제조함으로써 전량 수입되던 고순도 흑연의 수입 대체는 물론 해외 수출을 구현할 수 있는 순수 물리적 방법에 의한 천연 인상 흑연의 대량 제조방법을 제공함에 있다.
Another object of the present invention is to provide a natural impression by a pure physical method capable of realizing overseas export as well as import substitution of high purity graphite which was imported in the whole quantity by concentrating low grade ore which is mined in domestic natural graphite mine and producing high purity floating powder. And a method for mass-producing graphite.

이러한 본 발명의 목적은, a) 준비된 흑연 원광석을 분쇄하여 2mm 이하로 선별하는 단계와; b) 상기 선별된 흑연을 마광 처리한 후 60 메쉬 이하로 선별하는 단계와; c) 상기 선별된 흑연을 물에 부유시키는 단계와; d) 부유된 상기 흑연을 600 내지 5,960 메쉬로 초미분 마광한 후 상기 순수 흑연을 물에 부유시켜 원심 분리하고 불활성 분위기 하에서 건조하는 단계와; e) 건조된 상기 흑연을 공기 분급기를 통과시킨 후 진공포장하는 단계를 포함하는 순수 물리적 방법에 의한 천연 인상 흑연의 대량 제조방법에 의해 달성될 수 있다.This object of the present invention can be achieved by a method for producing a graphite ore, comprising the steps of: a) pulverizing a prepared graphite ore to select 2 mm or less; b) screening the selected graphite to 60 mesh or less after grinding; c) suspending the selected graphite in water; d) ultrafine grinding of the suspended graphite into 600 to 5,960 mesh, then floating the pure graphite in water, centrifuging and drying in an inert atmosphere; and e) passing the dried graphite through an air classifier and then vacuum-packing the graphite.

상세하게는, 본 발명의 상기 a)단계는 준비된 흑연 원광석을 죠우 크라샤를 통과시켜 25mm 이하로 분쇄하고, 분쇄된 상기 흑연을 더블 2단 롤 크라샤를 통과시켜 5mm 이하로 분쇄한 후 2mm 이하로 선별하는 것을 특징으로 한다.Specifically, in step (a) of the present invention, the prepared graphite ore is crushed to a size of not more than 25 mm through a Jorcracer, the crushed graphite is crushed to a size of not more than 5 mm by passing through a double-stage roll crusher, .

상세하게는, 본 발명의 상기 b)단계는 츄브밀을 사용하여 마광을 10 내지 30분간 진행하되, 물, 구석 시약, 파인오일 1분/20 내지 500cc, 석유 1분/10 내지 500cc를 혼합한 후 pH 9가 되도록 탄산수소나트륨을 첨가하고, 상기 마광된 흑연을 60 메쉬 스크린을 이용하여 선별하는 것을 특징으로 한다.In detail, in the step b) of the present invention, the baking is carried out for 10 to 30 minutes using a Chubmeil, and the mixture is mixed with water, a corner reagent, 1 minute of pine oil / 20 to 500 cc, 1 minute of petroleum / After adding sodium hydrogencarbonate to a pH of 9, the marred graphite was screened using a 60 mesh screen.

상세하게는, 본 발명은 상기 b)단계와 c)단계 사이에, 상기 샌드펌프로 선별된 상기 흑연을 싸이크론에 공급하되, 상기 싸이크론의 압력을 1 내지 3Kpa로 유지시킨 상태에서 상기 싸이크론의 상부로 토출된 상기 흑연을 1차 부선기로 보내고, 상기 싸이크론의 하부로 토출된 상기 흑연은 다시 상기 b) 단계로 순환시키는 f) 단계를 더 포함한다.In detail, according to the present invention, between the step b) and the step c), the graphite selected by the sand pump is supplied to the cyclone, while the pressure of the cyclone is maintained at 1 to 3 Kpa, F) discharging the discharged graphite to the primary flotation device and circulating the graphite discharged to the lower part of the cyclone again to the step b).

상세하게는, 본 발명의 상기 c)단계는 상기 흑연을 교반기에 넣고 5 내지 10분 정도 약품과 함께 교반하여 부선기로 투입한 후, 순수한 흑연을 물에 부유시키되, 물과 구석에 약품(파인오일 1분/20 내지 500cc, 석유 1분/10 내지 500cc)를 혼합한 후 pH 9가 되도록 첨가된 탄산수소나트륨이다.In detail, in step c) of the present invention, the graphite is placed in a stirrer, stirred for 5 to 10 minutes with chemicals, introduced into a flotation machine, and pure graphite is suspended in water, 1 minute / 20 to 500 cc, 1 minute of petroleum / 10 to 500 cc), and then added to pH 9.

상세하게는, 본 발명의 상기 d)단계의 물은 99.9% 증류수이다.
Specifically, the water of step d) of the present invention is 99.9% distilled water.

이상과 같은 본 발명의 방법은 2차 전지의 음극재, 그래핀을 이용한 가요성 디스플레이, 방염 섬유 등의 원료로 사용되는 고순도 천연 인상 흑연을 순수한 물리적인 분쇄 방식에 의해서 대량 제조할 수 있는 효과가 있다.
The method of the present invention as described above has the effect of mass-producing high-purity natural impression graphite, which is used as a raw material for anode materials of secondary batteries, flexible displays using graphene, flame-retardant fibers, etc., by pure physical pulverization have.

도 1은 본 발명에 의한 순수 물리적 방법에 의한 천연 인상 흑연의 대량 제조방법을 나타내는 순서도이다.FIG. 1 is a flow chart showing a method for mass-producing natural graphite in a pure physical state according to the present invention.

이하, 본 발명의 실시예를 도면을 참조하여 설명하기로 한다.Hereinafter, embodiments of the present invention will be described with reference to the drawings.

도 1을 참조하면, 본 발명에 의한 순수 물리적 방법에 의한 천연 인상 흑연은 다음과 같은 순서에 의해 대량 제조된다.
Referring to FIG. 1, natural impression graphite according to the pure physical method according to the present invention is mass-produced by the following procedure.

흑연 원광석을 준비하는 단계(S110) Preparing graphite ore ore (S110)

1. 먼저, 흑연 원광석을 준비한다. 여기서, 흑연 원광석은 국내산 천연 인상 흑연이 바람직하다.
1. First, prepare graphite ore. Here, graphite ore ore is preferably domestic natural graphite impression.

1차 분쇄, 선별하는 단계(S120 ~ S140) The primary pulverization and sorting steps (S120 to S140)

2. 우선, 준비된 흑연 원광석을 죠우 크라샤(또는 크럇샤, crusher)를 통과시켜 직경 25mm 미만으로 분쇄한다(S120).2. First, the prepared graphite ore is crushed to a diameter of less than 25 mm through a jor crusher (S120).

3. 그런 다음, 분쇄된 흑연을 더블 2단 롤 크라샤를 통과시켜 직경 5mm 미만으로 분쇄한다(S130).3. Then, the pulverized graphite is pulverized to a diameter of less than 5 mm by passing through a double double-stage roll crusher (S130).

4. 이어서, 분쇄된 흑연을 2mm 스크린(체 또는 망)을 통과시켜 직경 2mm 미만의 흑연만을 선별한다(S140).
4. Then, the pulverized graphite is passed through a 2 mm screen (sieve or net) to select only graphite having a diameter of less than 2 mm (S140).

1차 마광처리 후 선별하는 단계(S150 ~ S151) First step (S150 ~ S151) of selecting grinding after treatment

5. 위의 선별된 흑연을 1차 츄브밀을 사용하여 1차 마광(곱게 밀링되는 것)처리한다(S150).5. The above-selected graphite is treated with primary grinding (milled finely) using a primary chub mill (S150).

이때, 물과 구석(직경 80~100mm)에 약품(파일오일 1분/20~500cc, 석유 1분/10~500cc)를 혼합하되 pH 9가 되도록 탄산수소나트륨(중조)를 배합하여 적어도 10~30분 진행한다(S151). 여기서, 바람직한 1차 마광처리 시간은 도면 1a에 나타나 있는 바와 같이, 15~20분이다.At this time, sodium bicarbonate (sodium bicarbonate) is mixed with water (10-100 cc of oil, 1 ~ 10 cc of petroleum, 1 ~ 10 cc of petroleum, The process proceeds for 30 minutes (S151). Here, the preferred primary baking treatment time is 15 to 20 minutes, as shown in Fig.

또한, 도 1a에 나타나 있는 바와 같이 약품으로써 석유 1분/200cc, 파인오일 1분/150cc을 배합하는 것이 바람직하다.Further, as shown in FIG. 1A, it is preferable to mix 1 minute of petroleum / 200cc of coke, 1 minute of pine oil / 150cc of the chemical.

여기서, 전술된 단위 중 [1분/200cc]는 1분에 200cc가 배합된다는 의미임을 미리 밝혀둔다.Here, it is to be noted that the above-mentioned unit [1 min / 200cc] means that 200cc is added per minute.

위와 같이, 1차 마광이 완료되면 흑연은 60 메쉬(2mm) 이하의 스크린을 거쳐 선별된다.
As shown above, when the primary grinding is completed, the graphite is screened through a screen of 60 mesh (2 mm) or less.

부유선광(S160 ~ S202) Floating beneficiation (S160 to S202)

6. 여기서, 2mm 이하의 흑연은 샌드펌프(S160)에 의하여 싸이크론으로 퍼 올린다(S170). 이때, 싸이크론의 압력은 1 ~ 3Kpa을 유지하는 것이 중요하다.6. Here, the graphite of 2 mm or less is pumped up by the sand pump S160 (S170). At this time, it is important to maintain the pressure of the cyclone at 1 to 3 Kpa.

6-1. 계속해서, 싸이크론을 경유하여 상부로 토출된 흑연은 1차 부선기(소위, 콘디쇼나)로 운반된다(S180). 그리고, 1차 부선기에 약품을 넣어 5 ~ 10분간 교반하며, 이때 약품의 함량은 1차 마광단계와 동일하다.6-1. Subsequently, the graphite discharged to the upper side via the cyclone is conveyed to a primary flotator (so-called condensing) (S180). Then, the medicines are put into the primary flotation machine and stirred for 5 to 10 minutes, and the content of the chemicals is the same as that of the primary metalization step.

7. 이후, 마광된 순수 흑연을 1차 부선기(10구)에서 물에 띄운다(S190). 여기서, 1차 부선기는 350 ~ 650rpm으로 회전속도를 유지한다.7. Then, the pure graphite that has been sparked is floated in water from the primary flotation machine (10th hole) (S190). Here, the primary flotator maintains the rotation speed at 350 to 650 rpm.

8. 그런 다음, 1차 정광(조선)(S200)을 진행하며 테이링을 걸러서(S201) 야적장(테이링 처리장)에 적재한다(S202).
8. Then, the first concentrate (ship) (S200) proceeds and the toe ring is filtered (S201) and loaded onto the yard (Tayling).

반복적인 공정 수행(S150 ~ S200) Repetitive process steps (S150 to S200)

9. 이어서, 물에서 띄워 생산된 흑연을 전술된 단계 (S150 ~ S200)을 반복적으로 수행한다. 이때, 1차 부선기의 약품 투입량은 최소 투입량에 비하여 50% 줄여 사용한다.9. Then, graphite produced by floating in water is repeatedly subjected to the above-described steps (S150 to S200). At this time, the amount of medicine input in the primary flotation machine is reduced by 50% compared with the minimum input amount.

이를 좀 더 상세히 설명하면, 물에서 띄워 생산된 흑연을 2차 츄브밀(S310)을 통과시킨 후, 2차 샌드펌프(S320)로 퍼 올린다.In more detail, the graphite produced by floating in water is passed through a secondary chute mill (S310) and then pumped to a secondary sand pump (S320).

그런 다음, 전술된 바와 같이 2차 싸이크론(S330)에서 원심 분리시켜 상부로 토출되는 흑연은 2차 부선기(콘디쇼나)에 공급한다(S340). 이때, 약품은 파인오일 1분/25~125cc, 석유 1분/75~250cc이며 pH 9가 되도록 중탄산나트륨을 첨가한다(S341).Then, as described above, the graphite discharged to the upper portion by centrifugal separation at the secondary cyclone (S330) is supplied to the secondary flotation device (S340). At this time, sodium bicarbonate is added so that the pH is 9, and the chemical is 1 minute / 25 to 125 cc of pine oil / 1 minute / 75 to 250 cc of petroleum (S341).

이후, 2차 마광된 흑연은 2차 부선기(10구)에서 물에 띄운다(S350).Thereafter, the secondary graphitized graphite floats on the water in the secondary flotation device (10th hole) (S350).

그런 다음, 2차 정광(S360)을 진행한 후, 2차 샌드펌프(S370)를 사용하여 흑연을 2차 싸이크론(S380)에 공급한다. 이때, 사이크론의 압력은 1~3Kpa 이다.Then, after proceeding to the secondary condensation (S360), graphite is supplied to the secondary cyclone (S380) by using the secondary sand pump (S370). At this time, the pressure of the cyclone is 1 to 3 Kpa.

이어서, 2차 사이크론의 상부로 토출되는 흑연은 정광탱크 B(S391)에 포집된다. 그리고, 2차 사이크론의 하부로 토출된 흑연은 정광탱크 A(S390)에 포집된다. 여기서,
Then, the graphite discharged to the upper portion of the secondary ciclon is collected in the concentrating tank B (S391). Then, the graphite discharged to the lower portion of the secondary ciclon is collected in the concentrating tank A (S390). here,

초미분 파쇄단계 및 출하(S510 ~S600) Ultrafine powder crushing step and shipment (S510 to S600)

10. 정광탱크 B로부터 공급된 흑연을 초미분밀링기계(S510)를 이용하여 2.5 ~ 2.8mm(600 ~5,960메쉬) 이하로 초미분 분쇄한다(S510).10. The graphite supplied from the concentrate tank B is pulverized to an ultra fine powder of 2.5 to 2.8 mm (600 to 5,960 mesh) or less by using an ultrafine powder milling machine (S510) (S510).

여기서, 초미분밀링기계는 슈퍼 스탠드밀(Super Apex)이며 5,960메쉬를 통과한 초미분 흑연은 위의 6)단계와 동일하게 처리하되(S520 ~ 540), 사이크론의 하부로 나온 흑연을 츄브밀로 공급하지 않고 별도의 수납공간에 저장한 후 다시 초미분밀링기계를 이용하여 반복적으로 미분처리하여 6,000메쉬를 통과한 흑연만을 선별하여 다시 3단 싸이크론를 통과시킨다.Here, the ultra-fine milling machine is a Super Apex, and the ultra-fine graphite having passed through the 5,960 mesh is treated in the same manner as in the step 6) (S520 to 540), and the graphite, After storing in a separate storage space, it is repeatedly subjected to finely pulverizing treatment using an ultrafine milling machine to select only the graphite having passed through 6,000 mesh, and then pass through the 3-step cyclone again.

이어서, 위의 선별된 흑연은 6-1)단계와 동일하게 부선기에서 약품처리를 하되 약품 투입량은 6-1)단계의 절반을 투입한다.Subsequently, the selected graphite is subjected to chemical treatment in a flotation machine in the same manner as in step 6-1), but the amount of the chemical input is half of the step 6-1).

그리고, 순수 흑연을 물에서 띄우되 부선구안에 물은 3N(99.9%)의 증류수를 사용하며, 전술된 바와 같이 약품은 파인오일 1분/20 ~ 100cc, 석유는 1분/10 ~ 50cc을 사용한다(S551). 바람직한 증류수의 순도는 4N(99.99%)이다.In addition, pure graphite is discharged from water, but 3N (99.9%) of distilled water is used in water. As described above, chemicals are used for 1 minute / 20-100 cc of pine oil and 1 minute / 10-50 cc for petroleum (S551). The purity of the preferred distilled water is 4N (99.99%).

고순도흑연정광(S560)이 완료되면 상하부식 원심탈수기(S570)를 이용하여 탈수한 다음 질소 불활성 분위기하에서 진공건조기를 이용하여 건조하여(S580)하다.After the high-purity graphite concentrate (S560) is completed, dehydration is performed using the top and bottom corrosion centrifugal dehydrator (S570), and then dried using a vacuum dryer in a nitrogen inert atmosphere (S580).

이어서, 이러한 고순도흑연은 공기 분급기를 통과시킨 후 진공포장으로 팩킹(S590)한 후 출하된다(S600).
Then, the high purity graphite is passed through an air classifier, packed in vacuum packing (S590), and then shipped (S600).

이상과 같은 본 발명은 일 실시예에 한정되어 설명되었으나, 이에 한정되지 않고 본 발명의 기술적 사상을 토대로 변형되는 실시예들은 모두 본 발명의 권리범위에 속함이 분명하다.
While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

S110 : 흑연 원광석
S200 : 1차 정광
S360 : 2차 정광
S110: graphite ore
S200: Primary Concentrate
S360: Secondary Concentrate

Claims (6)

a) 준비된 흑연 원광석을 분쇄하여 2mm 이하로 선별하는 단계와;
b) 상기 선별된 흑연을 마광 처리한 후 60 메쉬 이하로 선별하는 단계와;
c) 상기 선별된 흑연을 물에 부유시키는 단계와;
d) 부유된 상기 흑연을 600 내지 5,960 메쉬로 초미분 마광한 후 상기 순수 흑연을 물에 부유시켜 원심 분리하고 불활성 분위기 하에서 건조하는 단계와;
e) 건조된 상기 흑연을 공기 분급기를 통과시킨 후 진공포장하는 단계를 포함하는 순수 물리적 방법에 의한 천연 인상 흑연의 대량 제조방법.
a) crushing the prepared graphite ore and selecting it to be 2 mm or less;
b) screening the selected graphite to 60 mesh or less after grinding;
c) suspending the selected graphite in water;
d) ultrafine grinding of the suspended graphite into 600 to 5,960 mesh, then floating the pure graphite in water, centrifuging and drying in an inert atmosphere;
e) passing the dried graphite through an air classifier and then vacuum-packing the graphite.
제 1 항에 있어서,
상기 a)단계는 준비된 흑연 원광석을 죠우 크라샤를 통과시켜 25mm 이하로 분쇄하고, 분쇄된 상기 흑연을 더블 2단 롤 크라샤를 통과시켜 5mm 이하로 분쇄한 후 2mm 이하로 선별하는 것을 특징으로 하는 순수 물리적 방법에 의한 천연 인상 흑연의 대량 제조방법.
The method of claim 1,
The step a) is a step of pulverizing the prepared graphite ore through a jorocerer to a size of not more than 25 mm, pulverizing the graphite to a size of not more than 5 mm by passing through a double two-stage roll crusher, METHOD FOR MANUFACTURING NATURAL IMPACT GRAPHIC BY.
제 1 항에 있어서,
상기 b)단계는 츄브밀을 사용하여 마광을 10 내지 30분간 진행하되,
물, 구석 시약, 파인오일 1분/20 내지 500cc, 석유 1분/10 내지 500cc를 혼합한 후 pH 9가 되도록 탄산수소나트륨을 첨가하고,
상기 마광된 흑연을 60 메쉬 스크린을 이용하여 선별하는 것을 특징으로 하는 순수 물리적 방법에 의한 천연 인상 흑연의 대량 제조방법.
The method of claim 1,
Step b) proceeds to 10 minutes of grinding, using a chub mill,
Sodium bicarbonate was added to pH 9 after mixing water, corner reagent, fine oil 1 minute / 20 to 500 cc, petroleum 1 minute / 10 to 500 cc,
Mass production method of natural impression graphite by the pure physical method, characterized in that the screened graphite is screened using a 60 mesh screen.
제 1 항에 있어서,
상기 b)단계와 c)단계 사이에,
상기 샌드펌프로 선별된 상기 흑연을 싸이크론에 공급하되, 상기 싸이크론의 압력을 1 내지 3Kpa로 유지시킨 상태에서 상기 싸이크론의 상부로 토출된 상기 흑연을 1차 부선기로 보내고, 상기 싸이크론의 하부로 토출된 상기 흑연은 다시 상기 b) 단계로 순환시키는 f) 단계를 더 포함하는 것을 특징으로 하는 순수 물리적 방법에 의한 천연 인상 흑연의 대량 제조방법.
The method of claim 1,
Between the steps b) and c)
The graphite selected by the sand pump is supplied to a cyclone, and the graphite discharged to the upper portion of the cyclone is sent to the primary barge while maintaining the pressure of the cyclone at 1 to 3 Kpa, and discharged to the lower portion of the cyclone. And the graphite further comprises the step of f) circulating back to the step b).
제 1 항에 있어서,
상기 c)단계는 상기 흑연을 교반기에 넣고 5 내지 10분 정도 약품과 함께 교반하여 부선기로 투입한 후, 순수한 흑연을 물에 부유시키되,
물과 구석에 상기 약품(파인오일 1분/20 내지 500cc, 석유 1분/10 내지 500cc)를 혼합한 후 pH 9가 되도록 첨가된 탄산수소나트륨인 것을 특징으로 하는 순수 물리적 방법에 의한 천연 인상 흑연의 대량 제조방법.
The method of claim 1,
In step c), the graphite is put in a stirrer and stirred with a medicine for about 5 to 10 minutes to be added to a buoy, and then pure graphite is suspended in water.
Natural impression graphite by a pure physical method characterized in that the sodium hydrogen carbonate added to pH 9 after mixing the drug (pine oil 1 minute / 20 to 500 cc, petroleum 1 minute / 10 to 500 cc) in water and corners Mass production method of the.
제 1 항에 있어서,
상기 d)단계의 물은 99.9% 증류수인 것을 특징으로 하는 순수 물리적 방법에 의한 천연 인상 흑연의 대량 제조방법.
The method of claim 1,
Wherein the water of step d) is 99.9% distilled water.
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