KR200312748Y1 - Regenerative apparatus for casting abolition chemical sand - Google Patents

Regenerative apparatus for casting abolition chemical sand Download PDF

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Publication number
KR200312748Y1
KR200312748Y1 KR20-2003-0002816U KR20030002816U KR200312748Y1 KR 200312748 Y1 KR200312748 Y1 KR 200312748Y1 KR 20030002816 U KR20030002816 U KR 20030002816U KR 200312748 Y1 KR200312748 Y1 KR 200312748Y1
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furnace
rotary
pyrolysis
cooling
dust collector
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KR20-2003-0002816U
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Korean (ko)
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윤병문
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서진로공업(주)
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C5/00Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/18Plants for preparing mould materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C5/00Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/04Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C5/00Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/08Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

본 고안은 주물주조시 한번 사용한 폐주물화학사(폐주물사)를 재생하여 저가로 다시 사용할수 있도록 한 폐주물화학사의 재생장치에 관한 것이다. 기존의 회전자의 고속회전에 따르는 마찰탈피 수단으로 하는 마찰식 재생장치는 접착바인드의 탈피효율이 낮고 생산성이 떨어져 경제성이 없었다.The present invention relates to a recycling apparatus for waste foundry chemicals that can be reused at low cost by reusing waste foundry chemicals used once during casting. The friction type regenerating device using the friction stripping means according to the high speed rotation of the conventional rotor has low economical efficiency due to low stripping efficiency and low productivity of the adhesive bind.

본 고안은 회전열분해로에서 가열버어너의 연소열로 열분해처리를 하게하고 또 파쇄기와 선별기를 결합구성하고 또 회전냉각로는 물냉각을 연속하게하고 1차 및 2차분진포집기를 결합구성하여 안전하고 연속적인 재생을 하게 함으로 열분해에 의한 재생효율이 좋고 생산성이 우수하여 저가로 재생이용 할수 있도록 한 것이다.The present invention is designed to perform pyrolysis treatment by combustion heat of heating burner in rotary pyrolysis furnace, and to combine crusher and sorter, and to rotate water cooling continuously and to combine primary and secondary dust collectors. Continuous regeneration makes it possible to use regeneration at low cost due to good regeneration efficiency and good productivity by pyrolysis.

Description

폐주물화학사의 재생장치 {Regenerative apparatus for casting abolition chemical sand}Regenerative apparatus for casting abolition chemical sand}

본 고안은 주물공장에서 주물작업시 주형주변에 충전사용후 버리던 폐주물화학사(일명 : 폐주물사)를 열분해하여 다시 사용할수 있도록 하는 폐주물화학사의 재생장치에 관한 것으로 폐주물화학사를 로울러 파쇄기에서 파쇄시킨 다음 회전열분해로 내에서 열분해처리로서 폐주물화학사 표면에 부착된 접착바인드(bind)를 효율적인 열분해시키고 또 회전냉각로를 통하여 냉각처리함과 동시에 1차분진포집기 및 2차분진포집기와 수증기 배기통을 연결배기되게 함으로 연속적인 열분해처리로 효율적이고 능률적인 재생을 하도록 하고 또 환경공해가 없도록 안전한 분진처리를 하도록 하는 폐주물화학사의 재생장치를 제공하고져 하는 것이다.The present invention relates to a regeneration device of waste foundry chemicals that thermally decomposes and reuses waste foundry chemicals (aka: waste foundry sand) that was discarded after being used and filled around the mold during casting work in a foundry factory. Next, pyrolysis in the rotary pyrolysis furnace effectively thermally decomposes the adhesive bind to the surface of the waste casting chemical company, and cools it through the rotary cooling furnace and connects the primary dust collector, the secondary dust collector and the steam exhaust pipe. It is to provide a recycling apparatus of waste foundry chemical company which makes it possible to perform efficient and efficient regeneration by continuous pyrolysis treatment and safe dust treatment to prevent environmental pollution.

일반적으로 천연모래로된 주물사는 국내에서 대량조달되어 염가로 이용되므로 재생할 필요를 느끼지 않는다. 그러나 주물제품의 제조에 따라서는(예를들면 비철금속품) 외국에서 수입되는 고가의 주물화학사(chemical sand)를 이용하게 되어 주조의 원가상승의 원인이 되어 왔으므로 근래에는 주물화학사를 염가로 이용하기 위해 폐주물화학사를 재생처리하여 이용하도록 하는 회전마찰식 재생장치가 개발되어 나온바 있다. 주물화학사(일명 : 주물사) 사용할시에는 분리유동을 막기 위하여 접착바인드를 혼합하여 사용하는바 주물작업시 주형주변에 충전사용 후에는 주물화학사 표면에 접착바인드의 응고로 뭉쳐져 있으므로 종래에는 서로 마찰시켜서 분리하는 회전마찰식 재생장치를 사용하여 왔다. 회전마찰식 재생장치는 분리통체내에 설치된 고속회전자가 고속회전하면서 폐주물화학사 입자를 강하게 때려주어서 서로 분리하고 또 표면에 묻은 접착바인드를 탈피시켜 내는 수단으로 하는 재생장치 였다. 이는 강한 마찰로 인하여 폐주물사 입자가 깨지고 또 잘개 깨진 미분입자 발생이 많은 원인으로 제품손상이 많아 재생산성이 낮은 결점이 있었고 또 재생능률이 미약하고 설비시설에 비하여 생산성이 떨어져서 원하는 염가의 재생품을 얻지 못하였다. 또한 미분입자발생의 과다에 비하여 미분진의 포집처리가 부진하여 환경오염에도 큰 문제점이 있는 결함이 있었다.In general, foundry sand made of natural sand is procured domestically and used at low cost, so there is no need to regenerate. However, due to the manufacture of casting products (e.g., non-ferrous metals), expensive chemical sands imported from abroad have been used to increase the cost of casting. For this purpose, a rotational friction regeneration device has been developed to recycle waste casting chemical companies. When using casting chemical yarn (aka: casting sand), adhesive binder is mixed to prevent separation flow. After filling and filling around mold during casting work, it is aggregated by solidification of adhesive binding on the surface of casting chemical yarn. Rotational friction regeneration apparatus has been used. The rotation friction regeneration device was a regeneration device in which a high speed rotor installed in a separating cylinder strongly beats particles of waste casting chemicals while rotating at high speed to separate them from each other and to remove adhesive bonds from the surface. This is caused by the strong friction, which causes the waste molding sand particles to be broken and the finely divided fine particles to be generated.Therefore, there are many defects in product damage due to product damage, and the regeneration efficiency is inferior and productivity is lower than that of the facility, so it is not possible to obtain a cheap recycled product. It was. In addition, the dust collection process is sluggish compared to the excessive generation of fine particles, and there is a defect that has a big problem in environmental pollution.

본 고안은 상기한 결함을 해소하고 보다 재생효율을 향상시키도록 함과 함께 분진의 포집처리를 원할히 하여 환경공해에 안전하도록 함에 그 목적이 있다.The present invention aims to solve the above-mentioned defects and to improve the regeneration efficiency, and to make the dust collection process smooth and safe for environmental pollution.

또한 본 고안은 폐주물화학사(폐주물사)를 열분해처리하기전 3단로울러파쇄기를 통과시켜 적은 입자상태로 고루 파쇄시키고 또 파쇄분과 미파쇄분을 선별시켜 회전열분해로에 주입하므로 회전열분해로에서의 이송과 열분해처리가 원할히 되도록한 것이다.In addition, the present invention is passed through a three-stage roller crusher before the pyrolysis treatment of waste foundry sand (waste foundry sand) and evenly crushed into small particles. It is to ensure that the pyrolysis treatment is smooth.

또한 본 고안은 회전열분해로 내에서 로내벽에 돌출형성시킨 다수단의 안내돌기에 의하여 폐주물사를 골고루 안내 분산시켜 로내에서 열분해를 더욱 효율적으로 이루어지게 되어 분해효율을 높이게 함과 동시에 로내벽의 이송스크류에 의하여연속적인 배출을 하게 하므로 연속적인 열분해처리를 할수 있어 재생능률을 높이게 함에 그 목적이 있다.In addition, the present invention distributes the waste casting sand evenly through the guide protrusions formed on the inner wall of the furnace in the rotary pyrolysis furnace, so that the thermal decomposition in the furnace becomes more efficient, thereby improving the decomposition efficiency and at the same time the transfer screw on the inner wall of the furnace. Its purpose is to increase the regeneration efficiency because it allows continuous pyrolysis treatment by continuous discharge.

또한 본 고안은 회전냉각로를 이용하여 열분해시킨 폐주물사를 냉각하도록 하고 회전냉각로는 물분사냉각방법을 택하고 냉각수는 쿨링타워에 의하여 연속 냉각시켜 연속적인 냉각작용을 할수 있게 함으로 연속적인 작업을 할수 있도록 함에 그 목적이 있다.In addition, the present invention is to cool the waste foundry sand pyrolyzed by using a rotary cooling furnace, the rotary cooling system uses the water spray cooling method, and the cooling water can be continuously cooled by the continuous cooling by cooling tower. The purpose is to make it.

또한 본 고안은 회전열분해로와 회전냉각로 로부터 배출되는 분진과 배기가스들은 모두 1차분진포집기와 2차분진포집기를 통과케하여 분진과 배기가스를 정화제거시키도록 하므로 환경오염에 무해하고 안전한 재생처리를 할수 있게 하고 재생비용이 최소화되게 하여 주조원자를 저비용으로 되도록 함에 고안의 목적이 있는 것으로 이를 첨부도면에 따라 더욱 상세히 설명하면 다음과 같다.In addition, the present invention allows dust and exhaust gases from the rotary pyrolysis furnace and the rotary cooling furnace to pass through the primary dust collector and the secondary dust collector so as to purify and remove the dust and the exhaust gas. The purpose of the present invention is to make the casting atom at a low cost by enabling the regeneration cost to be minimized and described in more detail according to the accompanying drawings.

도 1은 본 고안 실시예를 보인 전체구성도1 is an overall configuration showing an embodiment of the present invention

도 2는 본 고안의 회전열분해로의 확대단면도2 is an enlarged cross-sectional view of a rotary pyrolysis furnace of the present invention

도 3은 도 2의 A-A선 방향에서 본 확대단면도3 is an enlarged cross-sectional view as seen from the line A-A of FIG.

도 4는 본 고안에 있어 회전냉각로의 확대 일부단면도Figure 4 is an enlarged partial cross-sectional view of the rotary cooling furnace in the present invention

도 5는 본 고안에 있어 1차분진포집기의 정면도5 is a front view of the primary dust collector in the present invention

도 6은 도 5의 확대평면도6 is an enlarged plan view of FIG.

도 7은 본 고안에 있어 2차분진포집기의 평면도7 is a plan view of the secondary dust collector in the present invention

도 8은 본 고안에 있어 2차분진포집기의 정면도8 is a front view of the secondary dust collector in the present invention

도면의 중요부분에 대한 부호의 설명Explanation of symbols for important parts of the drawings

1 : 회전열분해로 1a : 내부로 1b : 중간로1: Rotary Pyrolysis 1a: Internal 1b: Medium Furnace

1c : 외부로 2,2′: 통로 12 : 가열버어너1c: 2,2 'to the outside: Passage 12: heating burner

23 : 파쇄기 24 : 선별기 30 : 회전냉각로23 crusher 24 sorter 30 rotary cooling furnace

31 : 1차분진포집기 31′: 2차분진포집기 38 : 물분사관31: 1st dust collector 31 ': 2nd dust collector 38: Water spray pipe

39 : 환수조 40 : 쿨링타워 41,41′: 안내돌기39: return tank 40: cooling tower 41,41 ': guide protrusion

본 고안의 도 1은 실시예를 보인 전체구성도이다.1 of the present invention is an overall configuration showing an embodiment.

본 고안은 폐주물화학사(폐주물사)를 저장하는 재료저장고(20)와 뭉쳐진 재료를 파쇄하는 3단로울러식의 파쇄기(23)와 파쇄물을 선별시키는 선별기(24)와 재료를 열분해처리하는 회전열분해로(1)와 열분해시킨 재료를 냉각처리하는 회전냉각로(30)와 분진을 제거처리하는 원심분리식의 1차분진포집기(31) 및 2차분진포집기 (31′)의 결합으로 구성되고 1차분진포집기(31) 및 2차분진포집기(31′)에서 나오는 배출통(46)은 회전냉각로(30) 위에 설비한 수증기배기통(33)를 모아 같이 배기휀(34)에 의하여 배기되도록 구성하였다.The present invention is a three-stage roller type shredder (23) for shredding agglomerated materials, a material storage (20) for storing waste foundry sand (waste foundry sand), a sorter (24) for sorting the shredded material, and a rotary pyrolysis furnace for pyrolyzing the material. (1) and a combination of a rotary cooling furnace 30 for cooling the pyrolyzed material and a centrifugal primary dust collector 31 and a secondary dust collector 31 'for removing dust, and the primary The discharge bin 46 coming out of the dust collector 31 and the secondary dust collector 31 'is configured to collect the steam exhaust pipe 33 installed on the rotary cooling furnace 30 and be exhausted by the exhaust fan 34 as well. .

본 고안의 회전열분해로(1)는 3중통형으로 중첩형성되어 내부로(1a) 중간로 (1b) 외부로(1c)로 구성되어 각중첩사이에는 일정한 통로(2)(2′)를 이루고 내부로 (1a)외면에는 이송스크류(3)가 형성되어서 재료공급통(4)으로 부터 공급되는 폐주물사(폐주물화학사)를 통로(2)를 통해 재료안내통(5)으로 공급이송되도록 구성하였다. 회전열분해로(1)는 재료안내통(5)과 배출통(6) 사이에 설치되어, 외면에 설치된 원형바퀴(10)(10′)와 동력전달로울(8)(8′)의 회전에 따라 서서히 회전을 하도록되어 있고 또 내부로(1a) 내면일측에는 폐주물사를 안내 분리하는 안내돌기(41) (41′)를 여러단으로 돌출형성함과 동시에 반대측에는 이송스크류(3a)를 형성하여 내부로 (1a)에서 열분해된 재료가 이송배출되어지도록 구성하였다. 또한 재료안내통(5) 중심 외측에는 가열버어너(12)가 설치되어서 외부의 공기휀(13)과 함께 내부로(1a)에 열분해를 위한 가열을 하게되어 있고 또 버킷엘리베이터(14)를 설치하여 통로(2)에서 나온재료를 수집통(15)에 받어 상승 이송시키고 또 상부 공급통(16)에서 내부로(1a)내에 재료를 주입하도록 구성하였다. 또한 회전열분해로(1) 중간외부에는 분진수집통(17)을 설치하여 내부로(1a) 중간로(1b) 외부로(1c)의 배기열을 수집배기되게 구성하였다.The rotary pyrolysis furnace (1) of the present invention is formed in a three-cylinder type overlapping and consists of an inner furnace (1a), an intermediate furnace (1b), and an outer furnace (1c) to form a constant passage (2) (2 ') between each overlapping A conveying screw (3) is formed on the outer surface (1a) so that the waste casting sand (waste casting chemical company) supplied from the material supply container (4) is configured to be fed to the material guide container (5) through the passage (2). . The rotary pyrolysis furnace (1) is installed between the material guide cylinder (5) and the discharge cylinder (6), the rotation of the circular wheel (10) (10 ') and the power transmission roll (8) (8') installed on the outer surface. The inner side (1a) and the inner side (1a) is formed to protrude in multiple stages and guide projections (41) (41 ') for guiding and separating the waste molding yarn in the inner side (1a) and at the same time to form a transfer screw (3a) on the opposite side The pyrolyzed material in the furnace (1a) was configured to be transported out. In addition, a heating burner 12 is installed outside the center of the material guide tube 5 to heat the pyrolysis in the furnace 1a together with the external air chuck 13, and a bucket elevator 14 is installed. It was configured to receive the material from the passage (2) to the collecting container 15, the upward conveyance and to inject the material into the interior (1a) from the upper feed container (16). In addition, a dust collecting container 17 was installed outside the middle of the rotary pyrolysis furnace 1 so as to collect exhaust heat from the inside 1a and the middle 1b of the outside 1c.

또한 폐주물사는 재료저장조(20)에서 공급벨트(21) 및 이송벨트(22)에 의하여 3단로울러식의 파쇄기(23)에 공급파쇄하도록 구성하고 또 파쇄기(23)를 통과 파쇄한 재료는 이송벨트(22′)에 의하여 이송됨과 동시에 파쇄분과 미파쇄분을 선별기(24)에서 선별하도록 하고 선별기(24)에서 선별된 재료는 회전열분해로(1) 외부에 설치시킨 재료공급통(4)으로 주입공급시키도록 결합 구성되어 있다. 이는 3단로울러식의 파쇄기(23)에서 폐주물사덩어리가 파쇄분리되고 또 선별기(24)에서 미파쇄물과 파쇄물이 분리선별되게 하므로 회전열분해로(1) 에서의 열분해가 원할히 되게 구성한 것이다.In addition, the waste casting sand is configured to supply and crush the three-stage roller type crusher 23 by the supply belt 21 and the transfer belt 22 in the material storage tank 20, and the material that is crushed through the crusher 23 is transferred to the conveyance belt. At the same time as being conveyed by the 22 ', the crushed powder and the uncrushed powder are sorted by the sorting machine 24, and the sorted material is sorted into the material supply container 4 installed outside the rotary pyrolysis furnace 1. It is configured to be coupled to supply. The waste casting lump is crushed and separated in the three-stage roller type crusher 23, and the fine crushed material and the crushed material are separated and sorted in the sorter 24, so that the thermal decomposition in the rotary pyrolysis furnace 1 is configured to be smooth.

또한 본 고안은 회전열분해로(1)에서 열분해된 재료를 냉각이송시키기 위하여 배출통(6)에서 회전냉각로(30)로 이송되게 연결 구성되어진다.In addition, the present invention is configured to be connected to the transfer to the rotary cooling furnace 30 from the discharge vessel (6) in order to cool the material pyrolyzed in the rotary pyrolysis furnace (1).

회전냉각로(30)는 내면에 이송스크류(3b)가 형성되어 있고 상기의 회전열분해로(1)의 회전을 위한 장치와 같은 구조의 원형바퀴(10a)(10a′)와 동력전달로울 (8a)(8a′)의 회전에 따라 서서히 회전할수 있게 양측의 도입통(35)과 배출통(6a) 사이에 설치되어 있고 배출통(6a) 하부는 완제품저장통(36)에 이송시키는 버킷엘리베이터(37)에 연결되어 배출이송시키도록 되어 있다. 또한 회전냉각로(30)는 물에 의한 냉각으로 상부에 길이로 물분사관(38)을 설치하고 하부에 환수조(39)를 설치하여 물분사관(38)에서 분사냉각한 물은 환수조(39)에 환수되게하고 쿨링타워(40)에 연결시켜 계속적 냉각수를 얻어 냉각하도록 구성하였다.The rotary cooling furnace 30 has a transfer screw (3b) formed on the inner surface and the circular wheel (10a) (10a ') and the power transmission roll (8a) of the same structure as the device for the rotation of the rotary pyrolysis furnace (1) Bucket elevator (37) is provided between the introduction cylinder 35 on both sides and the discharge cylinder (6a) so that it can rotate slowly according to the rotation of the (8a '), and the lower portion of the discharge cylinder (6a) is transferred to the finished product storage container (36). It is connected to discharge). In addition, the rotary cooling furnace 30 is installed by the water injection pipe 38 in the upper length by the cooling by the water and the recirculation tank 39 is installed in the lower portion of the water cooled by the water injection pipe 38 to the return tank (39). ) And connected to the cooling tower 40 to obtain continuous cooling water to cool.

또한 분진의 제거를 위하여 원심분리식의 1차분진포집기(31)와 휠터식의 2차분진포집기(31′)를 연결관(42)으로 결합설치하여 1차분진포집기(31)에서 미처리되는 분진은 2차분진포집기(31′)에서 완전 포집처리하도록 구성하였다. 또한 회전열분해로(1)에서 발생되는 분진을 모으는 분진수집통(17)과 배출통(6) 및 도입통(35)에 배기관(44)를 각각 설치하여 1차분진포집기(31)로 도입되게 배기관(44′)에 연결 결합구성하고 2차분진포집기(31′)는 배기관(44″)를 통해 배기휀(34)에 의하여배출통(46)를 통해 나가도록 구성하였다.In addition, in order to remove dust, the dust is untreated in the primary dust collector 31 by combining the centrifugal primary dust collector 31 and the filter-type secondary dust collector 31 'with the connecting pipe 42. Was configured to completely collect in the secondary dust collector (31 '). In addition, an exhaust pipe 44 is installed in the dust collecting bin 17, the discharge bin 6, and the introduction 35 to collect dust generated in the rotary pyrolysis furnace 1, respectively, to be introduced into the primary dust collector 31. Connected to the exhaust pipe 44 ', the secondary dust collector 31' is configured to exit through the exhaust pipe 46 by the exhaust fan 34 through the exhaust pipe 44 ".

또한 회전냉각로(30) 상부에는 수증기배기통(33)을 양측 2개로 조립설치하여 배출통(46′)에 연결시키므로 방출되는 분진의 집진과 배출을 원할히 할수 있게 결합 구성하였다.In addition, the upper part of the rotary cooling furnace (30) is installed by assembling the water vapor exhaust pipe 33 on both sides to connect to the discharge cylinder 46 'was configured to facilitate the dust collection and discharge of the dust discharged.

이와같이 된 본 고안은 회전열분해로(1)에 공급되는 폐주물사는 정량공급될 뿐더러 3단로울러식의 파쇄기(23)에서 뭉쳐진 재료가 모두 분리파쇄케 되고 또 선별기(24)에 이송되어 미파쇄분과 파쇄분이 분리선별되어져서 알맞게 파쇄된 파쇄분만 재료공급통(4)을 통하여 회전열분해로(1)로 주입되어지므로 열분해 효율이 높고 또 통로(2)를 따라 재료안내통(5)에 이송된 재료는 버킷엘리베이터(14)에 의하여 공급통(16)에서 내부로(1a)에 주입되므로 이때 가열버어너(12)의 연소화력에 의하여 주입된 폐주물사는 열분해작용을 할뿐 아니라 내벽에 여러단으로 돌출형성시킨 안내돌기(41)(41′)에 의하여 재료가 회전열분해로(1)의 회전에 따라 상하로 분리, 분산하게 될때 연소화력을 고루 받게되므로 열분해효과가 우수하다. 또 위에서 열분해처리된 재료는 회전냉각로(30) 내에 이송배출되면서 상부에 설치된 물분사관 (38)의 냉각수 분사로 냉각처리되고 또 환수조(39)에 환수되는 물을 쿨링타워(40) 로서 선회냉각시켜 계속적인 냉각기능을 가지므로 폐주물사의 재생능률을 향상시키는 효과가 있고 또 본 고안 심분리식의 1차분진포집기(31)와 휠터식의 2차분진포집기(31′)를 통하여 분진 및 배기가스를 집진처리할 뿐아니라 회전냉각로(30) 위에설치한 수증기 배기통(33)에서 받은 수증기와 1,2차분진포집기(31)(31′)를 통해 나오는 배기를 배기관(44″)에서 합류되어 나가도록 되고 또 배기휀(34)에 의하여 배출되므로 배기가 원할하고 또 분진처리가 효율적이어서 환경오염 없이 안전한 재생처리 할수가 있는 이점도 있다.In the present invention, the waste foundry sand supplied to the rotary pyrolysis furnace (1) is not only quantitatively supplied but also all the materials agglomerated in the three-stage roller type crusher 23 are separated and shredded, and are transferred to the sorting machine 24 to be crushed and broken. Only the finely crushed powder, which is finely divided and finely crushed, is injected into the rotary pyrolysis furnace 1 through the material supply container 4, so that the material that is high in pyrolysis efficiency and transferred to the material guide cylinder 5 along the passage 2 is Since it is injected from the supply container 16 into the interior 1a by the bucket elevator 14, the waste molding sand injected by the combustion thermal power of the heating burner 12 not only thermally decomposes but also protrudes in multiple steps on the inner wall. By the guide projections 41 and 41 ', the thermal decomposition effect is excellent because the combustion fire is uniformly received when the material is separated and dispersed up and down according to the rotation of the rotary pyrolysis furnace 1. In addition, the material pyrolyzed from above is cooled and sprayed by the cooling water injection of the water spray pipe 38 installed on the upper part while being discharged into the rotary cooling furnace 30, and the water returned to the return tank 39 is turned as a cooling tower 40. The cooling and continuous cooling function has the effect of improving the regeneration efficiency of the waste foundry sand and dust and exhaust through the primary dust collector 31 of the present invention and the filter-type secondary dust collector 31 '. In addition to collecting the gas, the water vapor received from the steam exhaust box 33 installed on the rotary cooling furnace 30 and the exhaust from the first and second dust collectors 31 and 31 'are combined in the exhaust pipe 44 ″. In addition, since the exhaust gas is discharged by the exhaust fan 34, the exhaust gas is smooth and the dust treatment is efficient, so that there is an advantage that the safe regeneration treatment can be performed without environmental pollution.

Claims (3)

폐주물화학사를 정량공급하여 파쇄하는 3단로울러식의 파쇄기(23)와 파쇄분을 선별시키는 선별기(24)와 공급된 재료를 가열버어너(12)의 연소열로 열분해처리하는 회전열분해로(1)와 열분해처리한 재료를 물냉각시키는 회전냉각로(30)와 원심분리식의 1차분진포집기(31) 및 휠터식의 2차분진포집기(31′)로 결합 구성되어 열분해로 연속재생 처리함을 특징으로 하는 폐주물화학사의 재생장치Three-stage roller type crusher 23 for quantitatively supplying and crushing waste foundry chemicals, a sorting machine 24 for sorting crushed powder, and a rotary pyrolysis furnace for pyrolysing the supplied material with combustion heat of a heating burner 12 (1). ) And a rotary cooling furnace (30) for water-cooling the thermally decomposed material, a primary dust collector (31) of centrifugal separation, and a secondary dust collector (31 ') of a filter type, which are continuously regenerated by pyrolysis. Recycling apparatus of waste foundry chemicals, characterized in that 제 1항에 있어서, 회전열분해로(1)는 내부로(1a) 중간로(1b) 외부로(1c)의 3중통형으로 중첩형성하여 통로(2)(2′)를 이루고 내부로(1a)에 여러단의 안내돌기 (41)(41′)가 형성된 폐주물화학사의 재생장치The rotary pyrolysis furnace (1) according to claim 1, wherein the rotary pyrolysis furnace (1) is formed into a three-cylindrical shape of an inner furnace (1a), an intermediate furnace (1b), and an outer furnace (1c) to form a passage (2) (2 ') and an inner furnace (1a). Recycling apparatus of waste foundry chemical company with multiple guide protrusions 41, 41 ' 제 1항에 있어서 회전냉각로(30)는 그위에 물분사관(38)과 하부에 환수조 (39)를 설치하여 쿨링타워(40)와 연결하여 연속적인 물냉각시키게 된 폐주물화학사의 재생장치The regeneration device of the waste casting chemical company according to claim 1, wherein the rotary cooling furnace (30) is connected to the cooling tower (40) by installing a water spray pipe (38) and a recirculation tank (39) thereon.
KR20-2003-0002816U 2003-01-29 2003-01-29 Regenerative apparatus for casting abolition chemical sand KR200312748Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100842023B1 (en) 2006-12-18 2008-06-27 송윤달 The molding sand separator casing abrasion prevention type liner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100842023B1 (en) 2006-12-18 2008-06-27 송윤달 The molding sand separator casing abrasion prevention type liner

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