KR20190137510A - Mold urethane injection device and screen net for sizing stons of vibration screen manufactured by defoamation - Google Patents
Mold urethane injection device and screen net for sizing stons of vibration screen manufactured by defoamation Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4618—Manufacturing of screening surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
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- C08G18/3237—Polyamines aromatic
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- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4266—Polycondensates having carboxylic or carbonic ester groups in the main chain prepared from hydroxycarboxylic acids and/or lactones
- C08G18/4269—Lactones
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- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
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- C08L75/06—Polyurethanes from polyesters
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2120/00—Compositions for reaction injection moulding processes
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Abstract
Description
본 발명은 진동스크린의 골재선별용 스크린망에 관한 것으로, 더욱 상세하게는 경도, 인장강도, 신율, 인열강도 등이 기준치를 만족함과 아울러 우수한 스크린망을 제조할 수 있는 CPU(CASTING polyurethane)를 이용한 진동스크린의 골재선별용 스크린망 조성물 및 이를 원료로 하여 제조된 스크린망에 관한 것이다.The present invention relates to a screen net for screening aggregates of vibrating screens, and more particularly to a CPU (CASTING polyurethane) that can produce excellent screen nets while satisfying the standard values such as hardness, tensile strength, elongation, tear strength, and the like. The present invention relates to a screen net composition for screening aggregates using a vibrating screen and a screen net manufactured from the same.
진동스크린이란 메쉬 형태의 스크린망이 몸통 내부에 기울어진 형태로 배치되고, 스크린망 높은 쪽 상단에 호퍼가 구비되어, 상기 호퍼에 골재류를 투입하면 진동수단에 의해 골재가 스크린망 위에서 기울어진 경사면을 따라 이동하면서, 스크린망에 형성된 메쉬구멍 이하의 골재는 스크린망 밑으로 떨어지고 메쉬구멍 이상의 골재는 스크린망의 기울어진 경사면 아랫쪽 끝까지 이동됨으로써, 진동스크린에 배치된 스크린망의 메쉬 사이즈 이상의 골재와 그 이하의 골재를 선별하여 분류할 수 있는 장치이다. 본 발명은 진동스크린의 스크린망에 관한 것으로 이하에서는 스크린망에 대해서만 설명하기로 한다.Vibrating screen is a mesh screen screen is arranged in the form inclined inside the body, and the hopper is provided on the upper end of the screen network, when the aggregate is injected into the hopper, the inclined surface of the aggregate tilted on the screen network by vibrating means Aggregate below the mesh hole formed in the screen net falls below the screen net while the aggregate is moved down to the lower end of the inclined slope of the screen net while moving along, so that the aggregate larger than the mesh size of the screen net disposed on the vibrating screen and its It is a device that can sort and classify the following aggregates. The present invention relates to a screen net of a vibrating screen, hereinafter, only the screen net will be described.
종래 스크린망은 신축성이 있는 고무 혹은 철망, tpu 우레탄 등을 재질로 하기 때문에 경도, 인장강도, 신율, 인열강도면에서 한계가 있기 때문에 기준치를 만족하지 못하고, 또한 일부 항목에서 기준치를 만족한다 하더라도 전체적인 특성이 약하여 유지보수비용이 많이 들고 골제선별에 많은 문제점이 있다.Conventional screen nets are made of elastic rubber or wire mesh, tpu urethane, etc., and thus have limitations in terms of hardness, tensile strength, elongation, and tear strength. Due to its weakness, the maintenance cost is high and there are many problems in selecting the bones.
본 발명이 해결하고자 하는 과제는 CPU 사출기를 이용한 진동스크린의 골재선별용 스크린망 조성물 및 이를 원료로 하여 제조된 스크린망 제공하는 것이다.The problem to be solved by the present invention is to provide a screen net composition for screening the aggregate of the vibration screen using a CPU injection machine and a screen net manufactured from the same.
본 발명이 해결하고자 하는 과제들은 이상에서 언급된 과제로 제한되지 않으며, 언급되지 않은 또 다른 과제들은 아래의 기재로부터 통상의 기술자에게 명확하게 이해될 수 있을 것이다.Problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.
본 발명의 일 면에 따른 CPU 사출기를 이용한 진동스크린의 골재선별용 스크린망 조성물 및 이를 원료로 하여 제조된 스크린망은, 엠디아이 계열의 폴리 카프락톤 MDI-terminated polycaprolactone 및 경화제(delayed action duamine curative)와 혼합하여 스크린망 원료를 제조하는 1단계와 상기 제 1단계를 통해 성형된 스크린망 원료를 사출하는 2단계, 사출되어 나온 원료를 숙성하는 제3단계를 포함하여 제조되고, 상기 제2단계에서 상기 사슬 연장제는 하나 이상의 하드 세그먼트(hard segment) 또는 하나 이상의 소프트 세그먼트(soft segment)로서 상기 프리폴리머(Prepolymer) 100중량부에 대하여 3 내지 100 중량부가 혼합되며 4, 4’-Diamino-Diphenyl Methane을 포함하며, 상기 2단계 사출은 반드시 대한민국 공개특허 등록번호 10-1388650에 등록된 주형우레탄 사출기 사용을 포함하며, 특히 프리폴리머(Prepolymer)는 사출이 되기 전까지 공기중의 수분과 노출이 되지 않도록 하며, 기포나 이물질이 절대 발생하기 않도록 탈포작업을 포함하는 진동스크린 용 스크린망 조성물을 포함한다.본 발명의 기타 구체적인 사항들은 상세한 설명 및 도면들에 포함되어 있다.Screen net composition for screening the aggregate of the vibration screen using a CPU injection machine according to an aspect of the present invention and the screen net manufactured from the same, MDI-based polycaprolactone MDI-terminated polycaprolactone and a curing agent (delayed action duamine curative) And a second step of injecting the screen net raw material molded through the first step and a third step of aging the raw material injected through the first step, by mixing with the first step, The chain extender is mixed with 3 to 100 parts by weight based on 100 parts by weight of the prepolymer as one or more hard segments or one or more soft segments, and contains 4,4'-Diamino-Diphenyl Methane. The two-stage injection necessarily includes the use of a cast urethane injection machine registered in Korea Patent Publication No. 10-1388650, in particular The prepolymer includes a screen net composition for a vibrating screen including defoaming to prevent exposure to moisture in the air until injection and to never generate bubbles or foreign substances. Are included in the detailed description and drawings.
본 발명에 의하면, 경도, 인장강도, 신율, 인열강도의 기준치를 만족하고 우수한 내구성으로 유지보수비용을 줄일 수 있는 진동스크린의 스크린망을 제조할 수 있다. According to the present invention, it is possible to manufacture a screen net of a vibrating screen that satisfies the criteria of hardness, tensile strength, elongation, tear strength and can reduce maintenance costs with excellent durability.
본 발명의 효과들은 이상에서 언급된 효과로 제한되지 않으며, 언급되지 않은 또 다른 효과들은 아래의 기재로부터 통상의 기술자에게 명확하게 이해될 수 있을 것이다.Effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.
도 1은 본 발명에 따른 진동스크린의 골재선별용 스크린망 조성물 공정 순서도1 is a flow chart of the screen screen composition for screening the aggregate of the vibration screen according to the present invention
본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나, 본 발명은 이하에서 개시되는 실시예들에 제한되는 것이 아니라 서로 다른 다양한 형태로 구현될 수 있으며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하고, 본 발명이 속하는 기술 분야의 통상의 기술자에게 본 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be embodied in various different forms, and the present embodiments only make the disclosure of the present invention complete, and those of ordinary skill in the art to which the present invention belongs. It is provided to fully inform the skilled person of the scope of the invention, which is defined only by the scope of the claims.
본 명세서에서 사용된 용어는 실시예들을 설명하기 위한 것이며 본 발명을 제한하고자 하는 것은 아니다. 본 명세서에서, 단수형은 문구에서 특별히 언급하지 않는 한 복수형도 포함한다. 명세서에서 사용되는 "포함한다(comprises)" 및/또는 "포함하는(comprising)"은 언급된 구성요소 외에 하나 이상의 다른 구성요소의 존재 또는 추가를 배제하지 않는다. 명세서 전체에 걸쳐 동일한 도면 부호는 동일한 구성 요소를 지칭하며, "및/또는"은 언급된 구성요소들의 각각 및 하나 이상의 모든 조합을 포함한다. 비록 "제1", "제2" 등이 다양한 구성요소들을 서술하기 위해서 사용되나, 이들 구성요소들은 이들 용어에 의해 제한되지 않음은 물론이다. 이들 용어들은 단지 하나의 구성요소를 다른 구성요소와 구별하기 위하여 사용하는 것이다. 따라서, 이하에서 언급되는 제1 구성요소는 본 발명의 기술적 사상 내에서 제2 구성요소일 수도 있음은 물론이다.The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of one or more other components in addition to the mentioned components. Like reference numerals refer to like elements throughout, and "and / or" includes each and all combinations of one or more of the mentioned components. Although "first", "second", etc. are used to describe various components, these components are of course not limited by these terms. These terms are only used to distinguish one component from another. Therefore, of course, the first component mentioned below may be the second component within the technical spirit of the present invention.
다른 정의가 없다면, 본 명세서에서 사용되는 모든 용어(기술 및 과학적 용어를 포함)는 본 발명이 속하는 기술분야의 통상의 기술자에게 공통적으로 이해될 수 있는 의미로 사용될 수 있을 것이다. 또한, 일반적으로 사용되는 사전에 정의되어 있는 용어들은 명백하게 특별히 정의되어 있지 않는 한 이상적으로 또는 과도하게 해석되지 않는다.Unless otherwise defined, all terms used in the present specification (including technical and scientific terms) may be used in a sense that can be commonly understood by those skilled in the art. In addition, terms that are defined in a commonly used dictionary are not ideally or excessively interpreted unless they are specifically defined clearly.
이하, 첨부된 도면을 참조하여 본 발명의 실시예를 상세하게 설명한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
진동스크린이란 메쉬 형태의 스크린망이 몸통 내부에 기울어진 형태로 배치되고, 스크린망 높은 쪽 상단에 호퍼가 구비되어, 상기 호퍼에 골재류를 투입하면 진동수단에 의해 골재가 스크린망 위에서 기울어진 경사면을 따라 이동하면서, 스크린망에 형성된 메쉬구멍 이하의 골재는 스크린망 밑으로 떨어지고 메쉬구멍 이상의 골재는 스크린망의 기울어진 경사면 아랫쪽 끝까지 이동됨으로써, 진동스크린에 배치된 스크린망의 메쉬 사이즈 이상의 골재와 그 이하의 골재를 선별하여 분류할 수 있는 장치이다. Vibrating screen is a mesh screen screen is arranged in the form inclined inside the body, and the hopper is provided on the upper end of the screen network, when the aggregate is injected into the hopper, the inclined surface of the aggregate tilted on the screen network by vibrating means Aggregate below the mesh hole formed in the screen net falls below the screen net while the aggregate is moved down to the lower end of the inclined slope of the screen net while moving along, so that the aggregate larger than the mesh size of the screen net disposed on the vibrating screen and its It is a device that can sort and classify the following aggregates.
종래 스크린망은 신축성이 있는 고무 혹은 철망, tpu 우레탄 등을 재질로 하기 때문에 경도, 인장강도, 신율, 인열강도면에서 한계가 있기 때문에 기준치를 만족하지 못하고, 또한 일부 항목에서 기준치를 만족한다 하더라도 전체적인 특성이 약하여 유지보수비용이 많이 들고 골제선별에 많은 문제점이 있다.Conventional screen nets are made of elastic rubber or wire mesh, tpu urethane, etc., and thus have limitations in terms of hardness, tensile strength, elongation, and tear strength. Due to its weakness, the maintenance cost is high and there are many problems in selecting the bones.
본 발명은 진동스크린의 스크린망에 관한 것으로 이하에서는 스크린망 조성물의 공정 순서를 설명한다.The present invention relates to a screen net of a vibrating screen. Hereinafter, the process sequence of the screen net composition will be described.
도 1을 참조하면, 본발명의 스크린망 조성물은 엠디아이 계열의 폴리 카프락톤 MDI-terminated polycaprolactone 및 경화제(delayed action duamine curative)와 혼합하여 스크린망 원료를 제조하는 1단계(S110)와 상기 제 1단계를 통해 성형된 스크린망 원료를 사출하는 2단계(S120), 사출되어 나온 원료를 숙성하는 제3단계(S130)로 제조된다. Referring to FIG. 1, the screen net composition of the present invention is mixed with MDI-based polycaprolactone MDI-terminated polycaprolactone and a delayed action duamine curative to prepare a screen net raw material (S110) and the first step. In the second step (S120) of injecting the molded screen net material through the step, and the third step (S130) of aging the raw material is injected.
상기 제2단계에서 상기 사슬 연장제는 하나 이상의 하드 세그먼트(hard segment) 또는 하나 이상의 소프트 세그먼트(soft segment)로서 상기 프리폴리머(Prepolymer) 100중량부에 대하여 3 내지 100 중량부가 혼합되며 4, 4’-Diamino-Diphenyl Methane을 포함하는 것을 특징으로 한다.In the second step, the chain extender is 3 to 100 parts by weight based on 100 parts by weight of the prepolymer as one or more hard segments or one or more soft segments, and 4, 4'- Diamino-Diphenyl Methane is characterized by including.
제2단계 사출은 반드시 대한민국 공개특허 등록번호 10-1388650에 등록된 주형우레탄 사출기 사용을 포함하며, 특히 프리폴리머(Prepolymer)는 사출이 되기 전까지 공기중의 수분과 노출이 되지 않도록 하며, 기포나 이물질이 절대 발생하기 않도록 탈포작업을 포함한다.The second stage injection necessarily includes the use of a cast urethane injection machine registered in Korean Patent Application Publication No. 10-1388650, and in particular, the prepolymer prevents exposure to moisture and air in the air until injection is performed. Include defoaming so that it never occurs.
제 3단계를 통해 제조된 스크린망을 70℃ 내지 130℃에서 30분 내지 2시간동안 1차 숙성한 후 실온에서 10시간 이상 2차 숙성하는 제3-1단계, 상기 제3-1단계를 거쳐 숙성된 스크린망을 80℃ 내지 130℃에서 20분 내지 10시간동안 건조하는 제3-2단계포함하는 것을 특징으로 한다.After the first screening of the screen net manufactured in the third step at 70 ℃ to 130 ℃ for 30 minutes to 2 hours, and then aged 3-1 at room temperature for 2 hours or more through the step 3-1 It characterized in that it comprises a third step of drying the aged screen net for 20 minutes to 10 hours at 80 ℃ to 130 ℃.
상기 프로폴리머는 40℃ 내지 80℃의 온도로 예열하여 용융 하는 제1-1단계 기 1-1단계의 폴리머에 경화제 10내지 70중량부를 50℃ 내지 70℃의 온도로 혼합하는 1-2단계 기 제1-2단계를 통한 혼합물을 40℃ 내지 120℃에서 30분 내지 10시간 동안 탈수 및 탈포하는 제1-3단계를 포함하는 것을 특징으로 한다.The copolymer is a 1-2 stage group that mixes 10 to 70 parts by weight of the curing agent at a temperature of 50 to 70 ℃ to the polymer of the 1-1 stage 1-1 stage to preheat and melt at a temperature of 40 ℃ to 80 ℃ Dehydrating and degassing the mixture through the 1-2 steps at 40 ℃ to 120 ℃ for 30 minutes to 10 hours, characterized in that it comprises a 1-3.
이상, 첨부된 도면을 참조로 하여 본 발명의 실시예를 설명하였지만, 본 발명이 속하는 기술분야의 통상의 기술자는 본 발명이 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로, 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며, 제한적이 아닌 것으로 이해해야만 한다. In the above, embodiments of the present invention have been described with reference to the accompanying drawings, but those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.
Claims (1)
상기 2단계 사출은 반드시 대한민국 공개특허 등록번호 10-1388650에 등록된 주형우레탄 사출기 사용을 포함하며, 특히 프리폴리머(Prepolymer)는 사출이 되기 전까지 공기중의 수분과 노출이 되지 않도록 하며, 기포나 이물질이 절대 발생하기 않도록 탈포작업을 포함하는 진동스크린 용 스크린망 조성물.MDI-based polycaprolactone MDI-terminated polycaprolactone and delayed action duamine curative mixed with the first step to produce a screen net raw material and the second step of injecting the molded screen net raw material through the first step, is injected And a third step of aging the raw material, wherein in the second step, the chain extender is 100 parts by weight of the prepolymer as one or more hard segments or one or more soft segments. 3 to 100 parts by weight of the mixture is characterized in that it comprises 4, 4'-Diamino-Diphenyl Methane,
The two-stage injection necessarily includes the use of a cast urethane injection machine registered in Korean Patent Application Publication No. 10-1388650, and in particular, the prepolymer prevents exposure to moisture and air in the air until injection is performed. Screen net composition for vibrating screen comprising a defoaming operation so that never occurs.
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Citations (1)
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| KR0182947B1 (en) | 1995-08-14 | 1999-04-15 | 김광호 | Digital frequency generator |
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| KR0182947B1 (en) | 1995-08-14 | 1999-04-15 | 김광호 | Digital frequency generator |
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