KR20070113623A - Manufacture device for granule - Google Patents

Manufacture device for granule Download PDF

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Publication number
KR20070113623A
KR20070113623A KR1020060047127A KR20060047127A KR20070113623A KR 20070113623 A KR20070113623 A KR 20070113623A KR 1020060047127 A KR1020060047127 A KR 1020060047127A KR 20060047127 A KR20060047127 A KR 20060047127A KR 20070113623 A KR20070113623 A KR 20070113623A
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South Korea
Prior art keywords
mixture
roll press
particles
mixer
filtration device
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KR1020060047127A
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Korean (ko)
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KR100788717B1 (en
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진수곤
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주식회사 웅비기계
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Priority to KR1020060047127A priority Critical patent/KR100788717B1/en
Publication of KR20070113623A publication Critical patent/KR20070113623A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
    • B02C23/22—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating with recirculation of material to crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2812/00—Indexing codes relating to the kind or type of conveyors
    • B65G2812/02—Belt or chain conveyors
    • B65G2812/02128—Belt conveyors

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Glanulating (AREA)

Abstract

A device for manufacturing granules is provided to form uniform-sized particles without extravagance of materials by performing repetitive reintroduction processes of unfiltrated materials. A device for manufacturing granules includes a mixer(10) for mixing introduced powdery materials and liquid adhesives in a paste state; a roll press(30) which is connected to the mixer via a screw conveyer(20), for molding the mixture of a paste state into a plate-shape; a pulverizer(50) which is connected to the roll press via a belt conveyer(40), for pulverizing the plate-molded mixture; a filter which is connected to the pulverizer via a transferring pipe(53), for filtrating only mixture particles of a predetermined size from the pulverized mixture; and a reintroducing unit which is connected to the filter and the roll press, for reintroducing the unfiltrated mixture particles into the roll press.

Description

과립물 성형장치{Manufacture device for granule}Manufacture device for granule

도1은 과립물 성형장치의 전체 구성을 니타낸 도면.1 is a view showing the overall configuration of a granule forming apparatus.

＊도면의 주요 부분에 대한 부호의 설명＊＊ Explanation of symbols for main parts of drawing *

10 : 혼합기 20, 80 : 스크류컨베이어10: mixer 20, 80: screw conveyor

30 : 롤프레스 40 : 벨트컨베이어30: roll press 40: belt conveyor

42 : 절단기 50 : 분쇄기42: cutter 50: grinder

60 : 여과장치 70 : 버킷엘리베이터60: filtration device 70: bucket elevator

본 발명은 분말상태로 공급되는 원료를 동일크기의 알갱이 형태로 배출시키는 과립물 성형장치에 관한 것으로서, 특히 재투입공정을 갖추어 원료의 낭비없이 단단하고 고른 입자의 생산이 가능한 과립물 성형장치에 관한 것이다.The present invention relates to a granule forming apparatus for discharging raw materials supplied in powder form in the form of granules of the same size, and more particularly, to a granule forming apparatus capable of producing hard and even particles without wasting raw materials by having a re-feeding process. will be.

일반적으로 활석과 같은 절연체 등은 분말로 투입되어 제품 고유의 기능를 갖도록 하는 것으로서, 분말 상태로 공급하는 과정에서 문제점이 있었다.In general, insulators such as talc are introduced into powder to have inherent functions of the product, and there is a problem in the process of supplying powder.

즉, 분말원료는 포장과 개봉할 때 공중으로 확산되어 주변환경을 오염시키고, 이렇게 확산된 원료는 작업자의 호흡기 내부로 유입되어 작업자의 건강을 해치며, 확산된 양만큼 손실을 초래하는 문제점이 있었다.That is, the powder raw material is diffused into the air when it is packaged and opened to contaminate the surrounding environment, and the spreading material is introduced into the worker's respiratory organs, which damages the health of the worker and causes a loss by the amount spread. .

이러한 문제점을 해결하기 위해 분말원료에 수분을 첨가하여 반죽원료로 만들고 이 반죽원료를 과립원료 성형기를 이용하여 알갱이 형태로 양산하였다.In order to solve this problem, water was added to the powder material to make a dough material, and the dough material was mass-produced in granular form using a granule material molding machine.

종래 과립원료 성형기는 모터의 동력에 의해 회전하는 회전체 내부에 반죽원료를 수납하고, 상기 회전체의 회전에 따라 발생된 원심력에 의해 반죽원료가 원심력 방향으로 밀려날 때 커터가 반죽원료를 절단하는 방식으로 과립원료를 제조 하였다.Conventional granule raw material molding machine is a method for storing the dough raw material inside the rotating body rotated by the power of the motor, the cutter cuts the dough raw material when the dough raw material is pushed in the direction of the centrifugal force by the centrifugal force generated by the rotation of the rotating body Granule raw material was prepared.

그런데 상기와 같은 과립원료 성형기는 반죽원료의 두께에 따라 밀려나는 속도의 차이가 발생되어, 즉 반죽원료가 두꺼운 부분은 느리게 밀려나고 얇은 부분은 빨리 밀려나게 되어 커터에 의해 절단된 알갱이는 크기가 달라질 뿐만 아니라 밀려나는 반죽원료를 커터가 절단하게 되므로 그 절단된 형상이 비교적 납작하고 불규칙한 형상을 가지므로 만족하게 과립형상으로 제조하지 못하는 단점이 있었다.By the way, the granule raw material forming machine as described above is a difference in the speed of being pushed according to the thickness of the dough raw material, that is, the thick portion of the dough raw material is pushed slowly and the thin part is pushed out quickly, the grains cut by the cutter will vary in size In addition, since the cutter cuts the dough material to be pushed out, the cut shape has a relatively flat and irregular shape, so there is a disadvantage in that it cannot be produced in a granular form satisfactorily.

본 발명은 상기 문제점을 해소하고자 안출한 것으로서, 본 발명의 목적은 분말 가루를 입자가 균일한 입자로 성형하는 과립물 성형장치를 제공하는데 있다.The present invention has been made to solve the above problems, and an object of the present invention is to provide a granulation molding apparatus for molding the powder powder into particles with uniform particles.

본 발명의 다른 목적은 균일한 입자로 걸러지지 않은 원료는 반복적인 재공정을 수행하여 균일한 입자로 성형하는 피드백 설비를 구비한 과립물 성형장치를 제공하는데 있다.Another object of the present invention is to provide a granule forming apparatus having a feedback facility for forming a raw material that is not filtered into uniform particles to be formed into uniform particles by performing repetitive reprocessing.

상기 목적을 실현하기 위한 본 발명은 분말원료와 액상의 접착제가 투입되어 반죽 상태로 혼합하는 혼합기, 혼합기와 스크류컨베이어로 연결되어 혼합된 반죽 상태의 혼합물을 판상으로 성형하는 롤프레스, 롤프레스와 벨트컨베이어로 연결되어 판상으로 성형된 혼합물을 분쇄하는 분쇄기, 분쇄기와 이송관으로 연결되어 분쇄된 혼합물 중 일정한 크기의 혼합물 입자만을 걸러내는 여과장치, 여과장치와 롤프레스를 연결하여 걸러지지 않은 혼합물 입자를 롤프레스로 재투입하는 재투입수단을 특징적 구성으로 한다.The present invention for realizing the above object is a roll press, a roll press and a belt to form a mixture of the mixed dough state, which is connected to the mixer, the mixer and the screw conveyor, the powder raw material and the liquid adhesive is put into the dough state A pulverizer that connects the conveyor to grind the plate-shaped mixture, a filtration device that connects the pulverizer and the transfer pipe to filter only the mixture particles of a certain size, and connects the filtration device and the roll press to remove the unfiltered mixture particles. The re-feeding means which re-feeds by roll press is a characteristic structure.

상기 재투입수단은 여과장치에 연결되어 여과장치에서 배출되는 걸러지지 않은 혼합물 입자를 롤프레스의 인접 위치로 상승시키는 버킷 엘리베이터, 버킷 엘리 베이터에 연결되어 버킷 엘리베이터에서 낙하되는 혼합물 입자를 이송하여 롤프레스에 재투입하는 스크류컨베이어를 특징적 구성으로 한다.The re-feeding means is connected to the filtration device, the bucket elevator for raising the unfiltered mixture particles discharged from the filtration device to the adjacent position of the roll press, connected to the bucket elevator to transfer the mixture particles falling from the bucket elevator roll press The screw conveyor which is re-injected into the is made into a characteristic structure.

상기 벨트컨베이어와 분쇄기 사이에는 판상의 혼합물을 절단하는 절단기가 설치된 것을 특징적 구성으로 한다.Between the belt conveyor and the pulverizer is characterized in that a cutter for cutting the plate-like mixture is installed.

이하, 본 발명의 실시예를 첨부한 도면을 참조하여 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

도1은 과립물 성형장치의 전체 구성을 나타낸 도면으로서, 본 발명은 분말원료와 액상의 접착제가 투입되어 반죽 상태로 혼합하는 혼합기(10), 혼합기(10)와 스크류컨베이어(20)로 연결되어 혼합된 반죽 상태의 혼합물을 판상으로 성형하는 롤프레스(30), 롤프레스(30)와 벨트컨베이어(40)로 연결되어 판상으로 성형된 혼합물을 분쇄하는 분쇄기(50), 분쇄기(50)와 이송관(53)으로 연결되어 분쇄된 혼합물 중 일정한 크기의 혼합물 입자만을 걸러내는 여과장치(60), 여과장치(60)와 롤프레스(30)를 연결하여 걸러지지 않은 혼합물 입자를 롤프레스(30)로 재투입하는 재투입수단으로 구성한다.1 is a view showing the overall configuration of the granulating apparatus, the present invention is connected to the mixer 10, the mixer 10 and the screw conveyor 20 for mixing the powder raw material and the liquid adhesive is mixed in the dough state Roll press 30 for molding the mixture of the mixed dough state into a plate, a mill 50 and a grinder 50 connected to the roll press 30 and the belt conveyor 40 to grind the mixture formed into a plate shape Filtration device 60, which filters only the mixture particles of a predetermined size in the pulverized mixture connected to the pipe 53, is connected to the filtration device 60 and the roll press 30 to roll the mixture particles not filtered through the roll press 30 It is composed of re-injection means for re-injection.

우선, 본 발명에서 성형장치는 활석과 같은 절연체를 분말로 가루화 한 후 혼합기(10)로 투입하여 이송경로를 따라 정해진 입자의 크기로 제조되는 것으로서, 피드백 설비인 재투입수단을 구비하여 혼합기(10)에 투입되어 반죽 상태의 혼합물 전량 모두 정해진 입자의 크기로 성형되는 구성이다.First, in the present invention, the molding apparatus is to be manufactured in the size of the particles according to the feed path by injecting the insulator, such as talc, into powder and then into the mixer 10, the feeder is provided with a re-feeding means as a mixer ( 10) is added to all the mixture in the dough state is a configuration that is molded to a predetermined particle size.

혼합기(10)는 분말가루가 저장된 분말탱크(2)와 액상의 접착제가 저장된 접 착제탱크(4)로부터 공급되는 분말가루와 액상의 접착제가 투입되는 투입구(11)(12)가 각각 구비되고, 반죽 상태의 혼합물이 배출되는 배출구(13)를 구비한 케이스 내에 모터(14)의 축상에 장착하여 혼합물을 반죽하는 교반기(15)가 설치된다.The mixer 10 is provided with a powder tank 2 in which powder powder is stored and an inlet 11 and 12 into which powder powder and liquid adhesive are supplied, respectively, from the adhesive tank 4 in which the liquid adhesive is stored. In the case provided with the discharge port 13 through which the mixture in the kneaded state is discharged, an agitator 15 is installed on the shaft of the motor 14 to knead the mixture.

이러한 혼합기(10)는 스크류컨베이어(20)로 롤프레스(30)와 연결되는 것으로서, 롤프레스(30)는 반죽상태의 혼합물이 투입되는 투입구(31)와 재투입구(32)가 각각 구비되고, 판상으로 성형된 혼합물을 배출하는 배출구를 구비한 케이스 내에 모터의 축상에 장착하여 반죽 상태의 혼합물을 판상으로 제조하는 한쌍의 롤(33)이 설치된다.The mixer 10 is connected to the roll press 30 by the screw conveyor 20, the roll press 30 is provided with an inlet 31 and the re-inlet 32, respectively, into which the mixture in the dough state is introduced, A pair of rolls 33 are installed on the shaft of the motor to produce a mixture in the form of a plate in a case having a discharge port for discharging the mixture molded into a plate shape to produce a mixture in a plate shape.

롤프레스(30)는 벨트컨베이어(40)로 분쇄기(50)와 연결되는 것으로서, 분쇄기(50)와 벨트컨베이어(40) 사이에는 분쇄기(50)로 투입되는 판상의 혼합물을 절단하는 절단기(42)가 설치된다.The roll press 30 is connected to the grinder 50 by the belt conveyor 40, and the cutter 42 cutting the plate-like mixture introduced into the grinder 50 between the grinder 50 and the belt conveyor 40. Is installed.

분쇄기(50)는 상부호퍼(51)와 하부호퍼(52)를 갖는 케이스 내에 일반적인 구조, 예를들면 감속기와 연결된 구동모터의 축상에 판상의 혼합물을 미세하게 분쇄하는 분쇄날들을 갖춘 구성으로서, 상기 상부호퍼(51)는 절단기(42)를 사이에 두고 벨트컨베이어(40)와 연결되고 하부호퍼(52)는 이송관(53)으로 여과장치(60)와 연결된다.The grinder 50 has a grinding structure for finely grinding a plate-like mixture on a shaft of a drive motor connected to a general structure, for example, a reducer, in a case having an upper hopper 51 and a lower hopper 52. The upper hopper 51 is connected to the belt conveyor 40 with the cutter 42 interposed therebetween, and the lower hopper 52 is connected to the filtration apparatus 60 by the transfer pipe 53.

여과장치(60)는 진동식과 회전식 모두 포함하며, 진동식과 회전식 모두 분쇄된 혼합물 입자에서 일정한 크기의 입자만을 걸러내는 구조로서, 예를 들면 회전식의 경우 일정한 크기만을 걸러내는 걸름망을 설치하여 걸름망을 통과하여 걸러진 입자와 걸러지지 않은 입자를 구분하여 분리 배출하는 기능을 갖는다.Filtration device 60 includes both vibrating and rotary type, and both the vibrating and rotary type filter to filter only the particles of a certain size from the crushed mixture particles, for example, in the case of the rotary type through the strainer by installing a strainer to filter only a certain size It has a function of separating and discharging the filtered and unfiltered particles.

또한 여과장치(60)는 걸름망을 통해 걸러진 균일한 입자가 배출되는 제1배출구(61)와 걸러지지 않은 입자가 분리되어 재투입되기 위하여 배출되는 제2배출구(62)를 갖는 구조로서, 상기 제2배출구(62)는 재투입수단으로 롤프레스(30)와 연결된다.In addition, the filtration device 60 has a structure having a first discharge port 61 through which the uniform particles filtered through the filtering net are discharged and a second discharge port 62 discharged to separate and re-inject the unfiltered particles. The two outlets 62 are connected to the roll press 30 as re-feeding means.

재투입수단은 버킷 엘리베이터(70)와 스크류컨베이어(80)의 연결구조로 된 것으로서, 버킷 엘리베이터(70)는 여과장치(60)의 제2배출구(62)에 연결되어 여과장치(60)에서 배출되는 걸러지지 않은 혼합물 입자를 롤프레스(30)의 인접 위치로 상승시키며, 스크류컨베이어(80)는 버킷 엘리베이터(70)와 롤프레스(30)의 재투입구(32)를 연결한다.The re-inserting means is a connection structure of the bucket elevator 70 and the screw conveyor 80, the bucket elevator 70 is connected to the second outlet 62 of the filtering device 60 is discharged from the filtering device 60 The unfiltered mixture particles are raised to an adjacent position of the roll press 30, and the screw conveyor 80 connects the bucket elevator 70 and the re-entry 32 of the roll press 30.

따라서 본 발명은 분말가루와 액상의 접착제가 혼합기(10)에 투입되어 반죽의 상태로 스크류컨베이어(20)로 롤프레스(30)에 이송되어 판상의 상태로 분쇄기(50)에서 분쇄됨으로써, 덩어리 상태로 분쇄하는 것에 대해 상대적으로 입자가 단단하고 고르게 분쇄된다.Therefore, in the present invention, the powdered powder and the liquid adhesive are introduced into the mixer 10 and transferred to the roll press 30 by the screw conveyor 20 in the form of dough, and pulverized in the crusher 50 in a plate state, thereby lumping. The particles are hard and evenly ground relative to the milling.

그리고 분쇄된 후 여과장치(60)에서 걸러지지 않은 혼합물 입자는 버킷 엘리베이터(70)와 스크류컨베이어(80)로 이송되어 롤프레스(30)에 재투입됨으로써, 입자의 고품질과 생산성 향상은 물론 원료의 낭비가 방지된다.After the pulverization, the mixed particles not filtered by the filtration device 60 are transferred to the bucket elevator 70 and the screw conveyor 80 and re-introduced into the roll press 30, thereby improving the quality and productivity of the particles as well as Waste is prevented.

이와 같이 본 발명은 반죽 후 판상의 상태로 분쇄됨으로써, 덩어리 상태로 분쇄하는 것에 대해 상대적으로 입자가 단단하고 고르게 분쇄되어 양질의 과립자가 생산되는 효과가 있다.As described above, the present invention is pulverized in a plate-like state after kneading, so that the particles are pulverized relatively evenly and uniformly pulverized in a lump state, thereby producing a good quality granules.

그리고 걸러지지 않은 혼합물 입자를 공정의 중간 단계로 재투입하여 생산함으로써, 생상성 향상과 원료의 낭비가 방지되는 효과도 있다.In addition, by re-injecting the unfiltered mixture particles into an intermediate step of the process, there is an effect of improving productivity and preventing waste of raw materials.

Claims (3)

분말원료와 액상의 접착제가 투입되어 반죽 상태로 혼합하는 혼합기(10), Mixer 10 for mixing the raw material and the liquid adhesive is mixed in the dough state, 혼합기(10)와 스크류컨베이어(20)로 연결되어 혼합된 반죽 상태의 혼합물을 판상으로 성형하는 롤프레스(30),A roll press 30 connected to the mixer 10 and the screw conveyor 20 to form a mixture of the mixed dough state into a plate shape, 롤프레스(30)와 벨트컨베이어(40)와 연결되어 판상으로 성형된 혼합물을 분쇄하는 분쇄기(50),A grinder 50 connected to the roll press 30 and the belt conveyor 40 to grind the mixture formed into a plate shape, 분쇄기(50)와 이송관(53)으로 연결되어 분쇄된 혼합물 중 일정한 크기의 혼합물 입자만을 걸러내는 여과장치(60),A filtration device 60 connected to the grinder 50 and the transfer pipe 53 to filter only the mixture particles of a predetermined size from the ground mixture, 여과장치(60)와 롤프레스(30)를 연결하여 걸러지지 않은 혼합물 입자를 롤프레스(30)로 재투입하는 재투입수단으로 구성한 것을 특징으로 하는 과립물 성형장치.Granules forming apparatus characterized in that it comprises a re-feeding means for connecting the filtration device 60 and the roll press 30 to re-introduce the unfiltered mixture particles into the roll press (30). 제1항에 있어서,The method of claim 1, 재투입수단은 여과장치(60)에 연결되어 여과장치(60)에서 배출되는 걸러지지 않은 혼합물 입자를 롤프레스(30)의 인접 위치로 상승시키는 버킷 엘리베이터(70), 버킷 엘리베이터(70)에 연결되어 버킷 엘리베이터(70)에서 낙하되는 혼합물 입자를 이송하여 롤프레스(30)에 재투입하는 스크류컨베이어(80)로 구성한 것을 특징으로 하는 과립물 성형장치.The re-feeding means is connected to the filtration device 60 and connected to the bucket elevator 70 and the bucket elevator 70 to raise the unfiltered mixture particles discharged from the filtration device 60 to an adjacent position of the roll press 30. And a screw conveyor (80) for conveying the mixture particles falling from the bucket elevator (70) and re-inserting them into the roll press (30). 제1항에 있어서, The method of claim 1, 벨트컨베이어와 분쇄기(50) 사이에는 판상의 혼합물을 절단하는 절단기(42)가 설치된 구성을 특징으로 하는 과립물 성형장치.Granular molding apparatus, characterized in that between the belt conveyor and the crusher 50, the cutter 42 for cutting the plate-like mixture is installed.
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KR20220072276A (en) * 2020-11-25 2022-06-02 한국지질자원연구원 Appatus for breakage capable of controlling atmosphere and sieving and method of fragmenting using the same
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