KR100681856B1 - Regenerated system for waster power coating - Google Patents

Regenerated system for waster power coating Download PDF

Info

Publication number
KR100681856B1
KR100681856B1 KR20050044661A KR20050044661A KR100681856B1 KR 100681856 B1 KR100681856 B1 KR 100681856B1 KR 20050044661 A KR20050044661 A KR 20050044661A KR 20050044661 A KR20050044661 A KR 20050044661A KR 100681856 B1 KR100681856 B1 KR 100681856B1
Authority
KR
South Korea
Prior art keywords
stirring
shaft
section
powder coating
barrel
Prior art date
Application number
KR20050044661A
Other languages
Korean (ko)
Other versions
KR20060122306A (en
Inventor
홍은표
Original Assignee
(주)인하기연
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)인하기연 filed Critical (주)인하기연
Priority to KR20050044661A priority Critical patent/KR100681856B1/en
Publication of KR20060122306A publication Critical patent/KR20060122306A/en
Application granted granted Critical
Publication of KR100681856B1 publication Critical patent/KR100681856B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/823—Temperature control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • B29B2017/0424—Specific disintegrating techniques; devices therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Abstract

본 발명은 폐분체도료와 버진분체도료 및 기타 첨가제를 혼합하는 혼합기(10)와, 상기 혼합기(10)에서 혼합된 분체도료를 용융시켜 압출성형하는 압출기(20)와, 상기 압출기(20)에서 성형된 반가공품을 분쇄하는 분쇄기(30)를 포함하며, 상기 압출기(20)는 전단부에 유입구(42)가 형성되고 후단부에 압출헤드(44)가 구비되며 둘레부에는 온도제어수단(46,48)이 구비된 배럴(40)과, 상기 배럴(40) 내부에 길이방향을 따라 장착되는 샤프트(50)를 포함하고, 상기 배럴(40)의 내부는 배럴(40)의 전단부에 위치되며 샤프트(50)의 외주면에는 스크류날(52)이 형성되어 투입된 분체도료를 후방으로 이송시키는 이송구간(A)과, 상기 이송구간(A)의 후방에 위치되며 상기 샤프트(50)의 외주면에는 교반날개(54)들이 샤프트(50)의 직경방향에 대해 직각보다 작은 각도로 어긋나게 배치되어 상기 이송구간(A)에서 이송되는 원료를 교반하는 제1교반구간(B)과, 상기 제1교반구간(B)의 후방에 위치되며 샤프트(50)의 외주면에는 교반날개(56)들이 샤프트(50)의 직경방향에 대해 상호 직교되도록 어긋나게 배치되어 제1교반구간(B)에서 1차 교반된 원료를 재 교반하는 제2교반구간(C)으로 구획된 것을 특징으로 하는 폐분체도료의 재생시스템에 관한 것이다. The present invention is a mixer (10) for mixing waste powder paint and virgin powder paint and other additives, an extruder (20) for melting and extruding the powder coating mixed in the mixer (10), and in the extruder (20) It includes a crusher 30 for pulverizing the molded semi-finished product, the extruder 20 is formed with an inlet port 42 at the front end and the extrusion head 44 is provided at the rear end and the temperature control means 46, 48 is provided with a barrel 40 and a shaft 50 mounted in the barrel 40 along the longitudinal direction, the interior of the barrel 40 is located at the front end of the barrel 40 A screw blade 52 is formed on the outer circumferential surface of the shaft 50 so as to transfer the injected powder coating to the rear, and is located at the rear of the conveying section A, and stirred on the outer circumferential surface of the shaft 50. The blades 54 are arranged to be offset at an angle smaller than the right angle with respect to the radial direction of the shaft 50 The first stirring section (B) for stirring the raw material conveyed in the conveying section (A) and the first stirring section (B) is located behind the stirring blades 56 on the outer peripheral surface of the shaft 50 shaft Regeneration of the waste powder coating, characterized in that it is arranged so as to cross each other perpendicular to the radial direction of (50) and partitioned into a second stirring section (C) for re-stirring the first stirred raw material in the first stirring section (B). It's about the system.

Description

폐분체도료의 재생시스템{Regenerated system for waster power coating}       Regenerated system for waster power coating

도 1은 본 발명의 일 실시예를 보인 개략도       1 is a schematic view showing an embodiment of the present invention

도 2는 상기 실시예에 사용된 압출기를 보인 단면도       2 is a cross-sectional view showing an extruder used in the above embodiment

도 3과 도 4는 상기 압출기의 각 구간별 샤프트를 보인 사시도        3 and 4 are perspective views showing the shaft for each section of the extruder

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10. 혼합기 20. 압출기    10. Mixer 20. Extruder

30. 분쇄기 40. 배럴   30. Grinder 40. Barrel

50. 샤프트 52. 스크류날개   50. Shaft 52. Screw Wings

54,56. 교반날개 A. 이송구간54,56. Agitation wing A. Transfer section

B. 제1교반구간 C. 제2교반구간    B. First Stirring Section C. Second Stirring Section

본 발명은 폐분체도료의 재생시스템에 관한 것으로서, 보다 상세하게는 폐분체도료를 고품질의 분체도료로 재생할 수 있는 새로운 방식의 폐분체도료의 재생시스템에 관한 것이다.The present invention relates to a recycling system for waste powder coating, and more particularly, to a recycling system for waste powder coating of a new method capable of recycling waste powder coating to high quality powder coating.

분체도료는 액상도료와 달리 용제에 의한 중독이나 화재위험이 적고, 도장작업이 용이한 장점이 있다. 이러한 분체도료는 종류가 다양하나, 그 중에서도 에폭시수지로 된 에폭시계 도료, 에폭시수지와 폴리에스테르수지가 소정비율로 혼합된 에폭시-폴리에스테르계 도료, 수지성분이 폴리에스테르수지만으로 된 폴리에스테르계 도료가 주종을 이룬다. 이와 같은 분체도료를 사용하는 경우에는 분체도료를 정전도장 등의 방법으로 피도장물에 부착시킨 다음 열처리하는데, 이때 도료의 수지성분이 열에 의해 가교결합되어 도막이 경화된다.Powder coating, unlike liquid paint, has the advantage of less poisoning or fire hazard by solvents, and easy painting work. These powder coatings are various, but among them, epoxy-based paints made of epoxy resins, epoxy-polyester-based paints in which epoxy resins and polyester resins are mixed in a predetermined ratio, and polyester-based paints whose resin components are only polyester resins. Prevails. In the case of using such a powder coating, the powder coating is adhered to the coated object by a method such as electrostatic coating and then heat treated. At this time, the resin component of the coating is crosslinked by heat to cure the coating film.

또한, 분체도료는 보관 및 사용시 장시간 햇빛에 노출되거나 또는 소정온도에서 장시간 노출되어도 수지성분들의 가교결합이 일어나지 않아야 하므로, 일반적으로 160~250℃의 온도범위에서 수지성분들이 가교결합되도록 제조된다. In addition, the powder coating is not produced crosslinking of the resin components even when exposed to sunlight for a long time during storage and use or for a long time at a predetermined temperature, it is generally prepared to crosslink the resin components in the temperature range of 160 ~ 250 ℃.

이와 같은 분체도료는 액상도료와 달리 일단 특정색상으로 제조된 이후에는 색상이 다른 도료를 혼합하여 새로운 색으로 조색하여 사용할 수 없으므로 액상도료에 비해 폐처분되는 양이 많다. 또한, 분체도료는 도장시 도장부스 내에 떨어져 서 손실되는 도료의 양이 상당히 많은데, 여러 가지 색상을 하나의 도장부스에서 도장하는 경우에는 떨어진 도료들이 여러 색상으로 오염되어 있어서 재활용이 곤란하므로 모두 폐처분되고 있는 실정이다.Unlike liquid paints, such powder paints are once used in a particular color, so they can be used in different colors by mixing paints with different colors. In addition, powder coating has a large amount of paint that falls off the coating booth during painting, and when the various paints are painted in one coating booth, the paints are contaminated with various colors and are difficult to recycle. It's happening.

이러한 분체도료의 폐기물은 지정폐기물로서, 고온열분해처리하여야 한다. 따라서 제조업체에서는 상당한 비용을 소비하면서 분체도료의 폐기물을 처리하고 있는데, 분체도료 폐기물의 처리시에도 고비용이 소요되지만, 이는 분체도료가 상당히 고급원료를 사용하여 제조된다는 점에서 볼 때 상당한 자원낭비가 아닐 수 없다. Wastes of such powder coatings are designated wastes and should be pyrolyzed. Therefore, manufacturers deal with powder paint waste at a high cost, which is expensive even when handling powder paint waste, but this is not a significant resource waste in that powder paint is manufactured using a very high quality raw material. Can't.

본 발명은 상기의 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 폐분체도료를 재생하는 것이므로 원료비를 절감할 수 있으며, 특히, 분체도료의 재생과정에서 가장 핵심적인 과정이라 할 수 있는 용융과정에서 수지성분들이 가교결합되지 않으면서도 폐분체도료와 버진분체도료가 고르게 교반되어 용융되도록 함으로써 품질이 우수하면서도 품질이 균일한 분체도료를 제조할 수 있는 새로운 구조의 폐분체도료의 재생시스템을 제공하는 것이다.The present invention is to solve the above problems, the object of the present invention is to recycle the waste powder coating material can reduce the raw material costs, in particular, in the melting process that can be said to be the most important process in the powder coating process It is to provide a recycling system for a waste powder paint with a new structure that can produce powder powder of excellent quality and uniform quality by allowing the powder and virgin powder paint to be stirred and melted evenly without crosslinking of the resin components. .

본 발명에 따르면, 폐분체도료와 버진분체도료 및 기타 첨가제를 혼합하는 혼합기(10)와, 상기 혼합기(10)에서 혼합된 분체도료를 용융시켜 압출성형하는 압 출기(20)와, 상기 압출기(20)에서 성형된 반가공품을 분쇄하는 분쇄기(30)를 포함하며, 상기 압출기(20)는 전단부에 유입구(42)가 형성되고 후단부에 압출헤드(44)가 구비되며 둘레부에는 온도제어수단(46,48)이 구비된 배럴(40)과, 상기 배럴(40) 내부에 길이방향을 따라 장착되는 샤프트(50)를 포함하고, 상기 배럴(40)의 내부는 배럴(40)의 전단부에 위치되며 샤프트(50)의 외주면에는 스크류날(52)이 형성되어 투입된 분체도료를 후방으로 이송시키는 이송구간(A)과, 상기 이송구간(A)의 후방에 위치되며 상기 샤프트(50)의 외주면에는 교반날개(54)들이 샤프트(50)의 직경방향에 대해 직각보다 작은 각도로 어긋나게 배치되어 상기 이송구간(A)에서 이송되는 원료를 교반하는 제1교반구간(B)과, 상기 제1교반구간(B)의 후방에 위치되며 샤프트(50)의 외주면에는 교반날개(56)들이 샤프트(50)의 직경방향에 대해 상호 직교되도록 어긋나게 배치되어 제1교반구간(B)에서 1차 교반된 원료를 재 교반하는 제2교반구간(C)으로 구획된 것을 특징으로 하는 폐분체도료의 재생시스템이 제공된다. According to the present invention, a mixer 10 for mixing waste powder paint, virgin powder paint and other additives, an extruder 20 for melting and extruding powder powder mixed in the mixer 10, and the extruder ( 20, which includes a crusher 30 for grinding the semi-finished product formed in the extruder 20, wherein the extruder 20 has an inlet 42 formed at the front end, an extrusion head 44 at the rear end, and a temperature control means at the periphery. A barrel 40 provided with 46 and 48 and a shaft 50 mounted in the barrel 40 in a longitudinal direction, the inside of the barrel 40 having a front end of the barrel 40. Located in the outer peripheral surface of the shaft 50 is a screw blade 52 is formed in the transfer section (A) for transferring the injected powder coating to the rear, and located behind the transfer section (A) of the shaft 50 On the outer circumferential surface, the stirring blades 54 are shifted at an angle smaller than a right angle with respect to the radial direction of the shaft 50. The first stirring section (B) for stirring the raw material conveyed in the transfer section (A) and the first stirring section (B) is located behind the stirring blade 56 on the outer circumferential surface of the shaft (50) Powders are disposed so as to be mutually orthogonal to each other in the radial direction of the shaft 50 and partitioned into a second stirring section C for re-stirring the first stirred raw material in the first stirring section B. A playback system of is provided.

본 발명의 다른 특징에 따르면, 상기 이송구간(A)은 10~20℃, 제1교반구간(B)은 70~80℃, 제2교반구간(C)은 100~120℃로 온도가 제어되는 것을 특징으로 하는 폐분체도료의 재생시스템이 제공된다. According to another feature of the invention, the transfer section (A) is 10 ~ 20 ℃, the first stirring section (B) is 70 ~ 80 ℃, the second stirring section (C) is the temperature is controlled to 100 ~ 120 ℃ A recycling system for waste powder coating is provided.

이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 설명하면 다음과 같다. 본 발명은 폐분체도료의 재생시스템에 관한 것으로, 폐분체도료와 버진분체도료를 혼합하는 혼합기(10)와, 이 혼합기(10)에서 혼합되어 공급되는 분체도료 를 용융시켜 시트형상으로 압출성형하는 압출기(20)와, 압출기(20)에서 성형된 반가공품을 분쇄하는 분쇄기(30)를 포함하여 이루어진다. 상기 혼합기(10)와 분쇄기(30)는 버진 분체도료의 제조시 사용되는 혼합기(10) 및 분쇄기(30)와 동일한 구성을 가진다. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention relates to a recycling system for waste powder coating, comprising: a mixer (10) for mixing waste powder paint and virgin powder paint, and melt-powdered powder coating (mixed and supplied from the mixer (10) for extrusion molding into a sheet shape. It comprises an extruder 20, and a crusher 30 for grinding the semi-finished product molded in the extruder 20. The mixer 10 and the grinder 30 have the same configuration as the mixer 10 and the grinder 30 used in the manufacture of the virgin powder coating.

본 발명에 의한 폐분체도료의 재생 과정을 구체적으로 살펴보면 다음과 같다. 상기 혼합기(10)에서 기 수집된 폐분체도료와 버진 분체도료, 경화촉진제, 안료 및 기타 첨가제가 혼합된다. 상기 폐분체도료는 먼지 등의 이물질이 제거되어 저장탱크(2)에 저장된다. Looking at the recycling process of the waste powder coating according to the present invention in detail. The waste powder paint collected in the mixer 10 and the virgin powder paint, a curing accelerator, a pigment, and other additives are mixed. The waste powder coating is stored in the storage tank 2 by removing foreign matters such as dust.

폐분체도료는 유통과정에서 겔타임이 버진 폐분체도료보다 빠르게 변화되며,여러 타입의 도료가 혼합되어 있다. 따라서 본 발명에서는 원료를 혼합하기 전에 수집된 폐분체도료를 분석하여 함유된 수지성분의 양 및 겔타임을 측정한다. 에폭시수지와 폴리에스테르수지가 혼합되어 있는 도료의 경우, 에폭시수지의 에폭시기와 폴리에스테르수지의 카르복실기는 1:1로 반응하여 가교결합하는데, 에폭시수지나 폴리에스테르수지 중에서 하나의 양이 상대적으로 많아 수지의 당량비가 맞지 않으면 도막형성시 겔타임 등의 차이로 미경화되는 부분이 생기면서 평활한 도막이 형성되지 못한다. 따라서 분석결과에 따라 에폭시기와 카르복실기의 당량이 1:1이 되도록 버진 분체도료를 혼합한다. Waste powder paints change more rapidly than virgin waste powder paints in the distribution process, and several types of paints are mixed. Therefore, in the present invention, the waste powder paint collected before mixing the raw materials to analyze the amount of the resin component contained and the gel time. In the case of a paint mixed with an epoxy resin and a polyester resin, the epoxy group of the epoxy resin and the carboxyl group of the polyester resin are reacted 1: 1 to crosslink, and the amount of either epoxy resin or polyester resin is relatively high. If the equivalence ratio of is not correct, the uncured portion is formed due to the difference in gel time when forming the coating film, and a smooth coating film is not formed. Therefore, the virgin powder paint is mixed so that the equivalent of epoxy group and carboxyl group is 1: 1 according to the analysis result.

또한 폐분체도료는 색상이 오염되어 있으므로 도료의 색상을 원하는 색상으로 조정되어야 하는데, 버진 분체도료에 의해 도료의 색상이 조정된다. 따라서 전술한 바와 같이, 에폭시기와 카르복실기의 당량은 1:1이 유지되면서 도료가 원하는 색상을 가지도록 버진 분체도료의 혼합량이 조절된다. In addition, the color of the waste powder paint has to be adjusted to the desired color because the color is contaminated, the color of the paint is adjusted by the virgin powder paint. Therefore, as described above, while the equivalent of the epoxy group and the carboxyl group is maintained 1: 1, the mixing amount of the virgin powder paint is adjusted so that the paint has a desired color.

그리고 전술한 바와 같이, 폐분체도료는 겔타임이 빨라져서 버진 분체도료의 겔타임과 차이를 가진다. 따라서 폐분체도료와 버진 분체도료의 겔타임을 맞추기 위해 분체도료의 혼합시 경화촉진제가 첨가된다. 일반적으로 에폭시-폴리에스테스계 도료의 겔타임은 180℃에서 140±20sec 이며, 혼합된 두 도료의 겔타임이 30sec 미만인 경우에는 상용성이 양호하므로, 폐분체도료의 겔타임과 버진 분체도료의 겔타임의 차가 30sec 이내가 되도록 한다. 이를 위해 경화촉진제의 첨가량을 조절하여 버진 분체도료의 겔타임이 상대적으로 빨라지도록 한다. As described above, the waste powder coating has a different gel time from the virgin powder coating due to the faster gel time. Therefore, in order to match the gel time of the waste powder coating and the virgin powder coating, a curing accelerator is added when the powder coating is mixed. In general, the gel time of epoxy-polyester paints is 140 ± 20 sec at 180 ° C., and the compatibility of the two paints is less than 30 sec. Therefore, the gel time of the waste powder paint and the gel of the virgin powder paint are good. The difference in time is made within 30 sec. To this end, by controlling the amount of curing accelerator added, the gel time of the virgin powder coating is relatively faster.

이와 같이 기 계산된 데이터에 따라 혼합기(10)에서 혼합된 원료들은 압출기(20)로 유입된다. 상기 압출기(20)는 전단부에 유입구(42)가 형성되고 후단부에는 압출헤드(44)가 구비되며, 둘레부에는 온도제어수단으로 히터(46)와 냉각수챔버(48)가 구비된 배럴(40)과, 상기 배럴(40) 내부에 길이방향을 따라 장착되는 샤프트(50)를 포함하여 이루어진다. 이러한 압출기(20)의 배럴(40) 내부는 유입구(42)를 통해 유입된 분체도료를 후방으로 이송시키는 이송구간(A)과, 분체도료를 교반하는 제1, 2교반구간(B,C) 및 압출구간(D)으로 구획된다. In this way, the raw materials mixed in the mixer 10 are introduced into the extruder 20 according to the pre-calculated data. The extruder 20 has an inlet 42 formed at the front end and an extrusion head 44 at the rear end, and a barrel having a heater 46 and a coolant chamber 48 as a temperature control means at a circumferential part thereof. And a shaft 50 mounted in the barrel 40 along the longitudinal direction. The barrel 40 of the extruder 20 has a conveying section A for conveying the powder coating introduced through the inlet 42 to the rear, and first and second stirring sections B and C for stirring the powder coating. And an extrusion section (D).

상기 이송구간(A)은 배럴(40)의 전단부에 해당되는데, 이 이송구간(A)에 해당되는 샤프트(50)의 외주면에는 스크류날(52)이 형성된다. 따라서 이 이송구간(A)에서는 샤프트(50)가 회전됨에 따라 투입된 분체도료가 후방으로 이송시킨다. 한편, 원료 즉, 분체도료가 용융되면 분체도료가 스크류날(52)에 부착되어 원활하게 이송되지 않으므로 이송구간(A)에서는 분체도료가 용융되지 않도록 하는 것이 바람 직하다. 따라서 이송구간(A)은 상기 히터(46) 및 냉각수챔버(48)에 의해 내부온도가 상온 이하, 대략 10~20℃ 정도로 조절된다. The transfer section A corresponds to the front end of the barrel 40, the screw blade 52 is formed on the outer peripheral surface of the shaft 50 corresponding to the transfer section (A). Therefore, in this conveying section (A), the powder coating injected as the shaft 50 is rotated to transfer to the rear. On the other hand, when the raw material, ie, powder coating is melted, the powder coating is attached to the screw blade 52 and is not smoothly transferred. Therefore, it is preferable to prevent the powder coating from melting in the transport section A. Therefore, the transfer section (A) is controlled by the heater 46 and the cooling water chamber 48, the internal temperature is below room temperature, approximately 10 ~ 20 ℃.

그리고 제1교반구간(B)은 이러한 이송구간(A)의 후방에 위치되는데, 제1교반구간(B)에 해당되는 샤프트(50)의 둘레부에는 교반날개(54)들이 샤프트(50)의 직경방향에 대해 직각보다 작은 각도로 상호 어긋나게 배치된다. 상기 교반날개(54)는 대략 타원형상으로 되어 그 중양부가 샤프트(50)에 결합된다. 따라서 교반날개(54)가 샤프트(50)에 결합되면 샤프트(50)의 외주면 양측으로 교반날개(54)의 양단부가 돌출되는데, 도 3에 도시된 바와 같이 교반날개(54)들은 양단부가 이웃되는 교반날개(54)들의 양단부와 샤프트(50)의 직경방향에 대해 직각보다 작은 각도로 상호 어긋나게 배치된다. 따라서 제1교반구간(B)에서는 이 교반날개(54)들에 의해 이송구간(A)에서 이송된 원료들이 교반된다. 바람직하게는 제1교반구간(B)의 교반날개(54)들은 양단부가 상호 45°어긋나게 배치된다. 또한, 이러한 제1교반구간(B)은 분체도료가 용융되기 시작하도록 대략 70~80℃ 정도로 온도가 제어된다.And the first stirring section (B) is located in the rear of the transfer section (A), the stirring blades 54 are formed on the circumference of the shaft 50 corresponding to the first stirring section (B) of the shaft 50 They are mutually displaced at an angle smaller than the right angle with respect to the radial direction. The stirring blade 54 is approximately elliptical shape and the middle portion thereof is coupled to the shaft 50. Therefore, when the stirring blade 54 is coupled to the shaft 50, both ends of the stirring blade 54 protrude to both sides of the outer circumferential surface of the shaft 50. As shown in FIG. 3, the stirring blades 54 are adjacent to both ends thereof. Both ends of the stirring blades 54 and the shaft 50 are disposed to be offset from each other at an angle smaller than a right angle with respect to the radial direction. Therefore, in the first stirring section B, the raw materials transferred from the transfer section A by the stirring blades 54 are stirred. Preferably, the stirring blades 54 of the first stirring section B are arranged so that both ends thereof are shifted by 45 °. In addition, the temperature of the first stirring section (B) is controlled to about 70 ~ 80 ℃ so that the powder coating begins to melt.

이와 같은 제1교반구간(B)의 후단에는 제2교반구간(C)이 구비된다. 이 제2교반구간(C)에 해당되는 샤프트(50)에도 제1교반구간(B)의 교반날개(56)와 동일한 형상을 가지는 교반날개(56)가 구비된다. 제2교반구간(C)에서는 제1교반구간(B)에서 1차적으로 분산된 원료를 재분산시켜 원료가 고르게 분산되도록 하는데, 제2교반구간(C)에서는 제1교반구간(B)에서 용융되어 점도가 높은 페이스트 상태로 된 원료가 분산되는 것이므로 분말상의 원료를 분산하는 경우에 비해 더 큰 힘이 요구된다. 따라서 제2교반구간(C)의 교반날개(56)들은 제1교반구간(B)에 비해 상대적으로 큰 힘으로 원료를 분산시킬 수 있도록 교반날개(56)의 양단부가 이웃되는 교반날개(56)의 양단부와 샤프트(50)의 직경에 대해 상호 직교되게 어긋나도록 배치된다. The second end of the first stirring section (B) is provided with a second stirring section (C). The shaft 50 corresponding to the second stirring section C is also provided with a stirring blade 56 having the same shape as the stirring blade 56 of the first stirring section B. In the second stirring section (C), the raw material dispersed primarily in the first stirring section (B) is re-dispersed so that the raw materials are evenly dispersed. In the second stirring section (C), the raw material is melted in the first stirring section (B). Therefore, since the raw material in the form of a paste having a high viscosity is dispersed, a greater force is required than in the case of dispersing powdery raw materials. Therefore, the stirring blades 56 of the stirring blades 56 of the second stirring section (C) are adjacent to both ends of the stirring blades 56 so as to disperse the raw material with a relatively large force compared to the first stirring section (B). The two ends and the shaft 50 are arranged so as to be mutually orthogonal to each other.

그리고 제2교반구간(C)은 원료가 완전히 용융될 수 있도록 가열된다. 전술한 바와 같이, 일반적으로 분체도료는 160~250℃의 온도범위에서 수지성분들이 가교결합되도록 제조되므로 제2교반구간(C)에서는 원료의 수지성분들이 가교결합되지 않도록 수지성분들이 가교결합되는 온도보다 낮은 온도로 가열된다. 이때 수지성분들이 특정온도에서 일시적으로 가교결합되는 것이 아니라 상기 온도수준보다 다소 낮은 온도에서도 수지성분의 일부가 가교결합될 수 있으므로 본 발명에서는 분체도료가 일반적으로 가교결합되는 온도보다 다소 낮은 온도로 온도가 제어된다. 바람직하게는 100~120℃로 온도가 제어된다. And the second stirring section (C) is heated so that the raw material can be completely melted. As described above, in general, the powder coating is prepared so that the resin components are crosslinked in the temperature range of 160 ~ 250 ℃ in the second stirring section (C) the temperature at which the resin components are crosslinked so as not to crosslink Heated to a lower temperature. At this time, since the resin components are not temporarily crosslinked at a specific temperature but a part of the resin components may be crosslinked even at a temperature slightly lower than the temperature level, in the present invention, the temperature of the powder coating is somewhat lower than the temperature at which the powder coating is generally crosslinked. Is controlled. Preferably temperature is controlled to 100-120 degreeC.

이러한 제2교반구간(C)의 후방에는 압출구간(D)이 구비되는데, 이 압출구간(D)에 해당되는 샤프트(50)는 단부에는 용융된 원료를 압출헤드(44)로 가압하는 가압헤드(58)가 구비된다. An extrusion section (D) is provided at the rear of the second stirring section (C), and the shaft 50 corresponding to the extrusion section (D) has a pressure head for pressurizing the molten raw material to the extrusion head (44) at the end. 58 is provided.

이와 같이 구성되는 압출기(20)로 유입된 원료는 전술한 바와 같이, 각 구간을 경유하면서 고르게 분산용융되어, 시트형상의 반가공품으로 압출된다. 그리고 압출된 반가공품은 분쇄기(30)에서 분쇄 및 분급과정을 거쳐 30~50㎛정도의 입도를 가지는 분체도료로 제조된다. 미설명 부호 32는 상기 분쇄기에서 분쇄된 분말을 재차 미분쇄하는 미분쇄기이다. As described above, the raw material introduced into the extruder 20 is melted and dispersed evenly through each section, and is extruded into a sheet-shaped semi-finished product. And the extruded semi-finished product is made of a powder coating having a particle size of about 30 ~ 50㎛ through the grinding and classification process in the grinder (30). Reference numeral 32 is a pulverizer that again pulverizes the powder pulverized in the pulverizer.

이상에서와 같이 본 발명에 의하면, 폐분체도료를 재생하는 것이므로 원료비를 절감할 수 있으며, 특히, 분체도료의 재생과정에서 가장 핵심적인 과정이라 할 수 있는 용융과정에서 수지성분들이 가교결합되지 않으면서도 폐분체도료와 버진분체도료가 고르게 교반되어 용융됨으로써 품질이 우수하면서도 균일한 품질을 가지는 분체도료를 제조할 수 있는 새로운 구조의 폐분체도료의 재생시스템이 제공된다.As described above, according to the present invention, it is possible to reduce the raw material cost because it is to recycle the waste powder coating, in particular, the resin components are not cross-linked in the melting process, which is the most essential process in the powder coating regeneration process. The waste powder coating and the virgin powder coating are uniformly stirred and melted, thereby providing a recycling system for the waste powder coating having a new structure capable of producing powder coating having excellent quality and uniform quality.

Claims (2)

폐분체도료와 버진분체도료 및 기타 첨가제를 혼합하는 혼합기(10)와, 상기 혼합기(10)에서 혼합된 분체도료를 용융시켜 압출성형하는 압출기(20)와, 상기 압출기(20)에서 성형된 반가공품을 분쇄하는 분쇄기(30)를 포함하며, 상기 압출기(20)는 전단부에 유입구(42)가 형성되고 후단부에 압출헤드(44)가 구비되며 둘레부에는 온도제어수단(46,48)이 구비된 배럴(40)과, 상기 배럴(40) 내부에 길이방향을 따라 장착되는 샤프트(50)를 포함하고, 상기 배럴(40)의 내부는 배럴(40)의 전단부에 위치되며 샤프트(50)의 외주면에는 스크류날(52)이 형성되어 투입된 분체도료를 후방으로 이송시키는 이송구간(A)과, 상기 이송구간(A)의 후방에 위치되며 상기 샤프트(50)의 외주면에는 교반날개(54)들이 샤프트(50)의 직경방향에 대해 직각보다 작은 각도로 어긋나게 배치되어 상기 이송구간(A)에서 이송되는 원료를 교반하는 제1교반구간(B)과, 상기 제1교반구간(B)의 후방에 위치되며 샤프트(50)의 외주면에는 교반날개(56)들이 샤프트(50)의 직경방향에 대해 상호 직교되도록 어긋나게 배치되어 제1교반구간(B)에서 1차 교반된 원료를 재 교반하는 제2교반구간(C) 및 압출구간(D)으로 구획된 것을 특징으로 하는 폐분체도료의 재생시스템. Mixer 10 for mixing waste powder paint, virgin powder paint and other additives, an extruder 20 for melting and extruding powder powder mixed in the mixer 10, and a semi-finished product molded in the extruder 20 It includes a crusher 30 for crushing, the extruder 20 has an inlet 42 is formed at the front end, the extrusion head 44 is provided at the rear end and the temperature control means (46, 48) at the periphery And a barrel 40 provided therein, and a shaft 50 mounted in the barrel 40 along the longitudinal direction, wherein the barrel 40 is positioned at the front end of the barrel 40 and has a shaft 50. Screw blades 52 are formed on the outer circumferential surface of the transfer section A for transferring the powder coating injected rearward, and located at the rear of the transfer section A, and stirring blades 54 on the outer circumferential surface of the shaft 50. ) Are shifted at an angle smaller than a right angle with respect to the radial direction of the shaft 50, The first stirring section (B) for stirring the raw material conveyed in the feed section (A), and the stirring blades 56 are located on the outer circumferential surface of the shaft 50, the shaft 50 Disposed in such a way that they are mutually orthogonal with respect to the radial direction of the) and divided into a second stirring section (C) and an extrusion section (D) for re-stirring the first stirred raw material in the first stirring section (B) Powder coating regeneration system. 제1항에 있어서, 상기 이송구간(A)은 10~20℃, 제1교반구간(B)은 70~80℃, 제2교반구간(C)은 100~120℃로 온도가 제어되는 것을 특징으로 하는 폐분체도료의 재생시스템.According to claim 1, wherein the transfer section (A) is 10 ~ 20 ℃, the first stirring section (B) is 70 ~ 80 ℃, the second stirring section (C) is characterized in that the temperature is controlled to 100 ~ 120 ℃ Waste powder coating regeneration system.
KR20050044661A 2005-05-26 2005-05-26 Regenerated system for waster power coating KR100681856B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20050044661A KR100681856B1 (en) 2005-05-26 2005-05-26 Regenerated system for waster power coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20050044661A KR100681856B1 (en) 2005-05-26 2005-05-26 Regenerated system for waster power coating

Publications (2)

Publication Number Publication Date
KR20060122306A KR20060122306A (en) 2006-11-30
KR100681856B1 true KR100681856B1 (en) 2007-02-13

Family

ID=37707659

Family Applications (1)

Application Number Title Priority Date Filing Date
KR20050044661A KR100681856B1 (en) 2005-05-26 2005-05-26 Regenerated system for waster power coating

Country Status (1)

Country Link
KR (1) KR100681856B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100949379B1 (en) 2009-09-08 2010-03-25 주식회사 대양피앤티 Method for recycling waste powdery paints reclaimed powdery paints and manufacturing method of the same
KR100955658B1 (en) * 2009-10-21 2010-05-06 주식회사 대양피앤티 Method for recycling waste powdery paints, reclaimed powdery paints for special pattern and manufacturing method of the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101709270B1 (en) * 2014-12-12 2017-02-22 주식회사 케이씨씨 Apparatus and method for processing wasted powder coating

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR860000872Y1 (en) * 1983-02-10 1986-05-14 오까 기시히로 야마 Composite resin mixing apparatus
KR930012887A (en) * 1991-12-18 1993-07-21 강진기 Recycling Method of Waste Polyurethane Resin
KR960002052B1 (en) * 1993-04-14 1996-02-10 부성화학주식회사 Method for recycling waste plastics
KR20040049947A (en) 2002-12-05 2004-06-14 이상호 Method for remaking waste urethane
US20050281379A1 (en) * 2000-10-06 2005-12-22 Xintek, Inc. Devices and methods for producing multiple x-ray beams from multiple locations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR860000872Y1 (en) * 1983-02-10 1986-05-14 오까 기시히로 야마 Composite resin mixing apparatus
KR930012887A (en) * 1991-12-18 1993-07-21 강진기 Recycling Method of Waste Polyurethane Resin
KR960002052B1 (en) * 1993-04-14 1996-02-10 부성화학주식회사 Method for recycling waste plastics
US20050281379A1 (en) * 2000-10-06 2005-12-22 Xintek, Inc. Devices and methods for producing multiple x-ray beams from multiple locations
KR20040049947A (en) 2002-12-05 2004-06-14 이상호 Method for remaking waste urethane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100949379B1 (en) 2009-09-08 2010-03-25 주식회사 대양피앤티 Method for recycling waste powdery paints reclaimed powdery paints and manufacturing method of the same
KR100955658B1 (en) * 2009-10-21 2010-05-06 주식회사 대양피앤티 Method for recycling waste powdery paints, reclaimed powdery paints for special pattern and manufacturing method of the same

Also Published As

Publication number Publication date
KR20060122306A (en) 2006-11-30

Similar Documents

Publication Publication Date Title
US5942170A (en) Process of and apparatus for preparing thermosetting polymer pellets
EP2114647B1 (en) Thermoplastic and/or thermosetting polymer granule, coloured and/or containing additives, and relative dyeing and/or additive addition process and a process
KR100681856B1 (en) Regenerated system for waster power coating
CN103753787B (en) A kind of preparation method of the wood plastic composite for door and window
KR101980038B1 (en) Method for Recycling Waste Powdery Paint
EP1425145A1 (en) Elastomer mixtures for use in the production of rubbers
MX2007009443A (en) Coating of organic and inorganic pigments with aldehyde or ketone resins.
CN102414007A (en) Powder coating extrusion process
EP2049317B1 (en) Process for preparing granules of pigments by means of double extrusion
KR101769532B1 (en) Recycling device of waste powdery paint and method for recycling waste powdery paint using the same
WO2019182256A1 (en) Waste rubber powder production apparatus
CN104672708B (en) A kind of polyvinyl chloride composite materials and preparation method thereof recycling waste plastics
JP2003105224A (en) Readily dispersible pigment composition and production method therefor
KR101151475B1 (en) The method for recycle cover of the wire
CN106513281A (en) Curing-free electrostatic powder spraying technology
JPH09123169A (en) Thermoplastic resin synthetic material with plastic bottle as material, manufacture thereof, thermoplastic resin molding using the material and manufacture thereof
US5323970A (en) Method for making a powder coating
US6793163B1 (en) Process for recycling powder coating fines
JP4180428B2 (en) Granulating apparatus and toner production method
CN101068891A (en) Near infrared radiation curable powder coating composition having enhanced flow characteristics
JPH101547A (en) Abrasive
JPH07164443A (en) Modifying method for polypropylene and wooden powder composite material
JP2012111833A (en) Method for producing regenerated powder coating
KR20020031123A (en) powder coating preparation method for waster power coating
US10093035B1 (en) Colorant dispersion in polymer materials using solid-state shear pulverization

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: 20130807

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20140207

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20150209

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee