KR20030054533A - Apparatus for automatically controling the boom damper of discharge chute of reclaimer - Google Patents
Apparatus for automatically controling the boom damper of discharge chute of reclaimer Download PDFInfo
- Publication number
- KR20030054533A KR20030054533A KR1020010084706A KR20010084706A KR20030054533A KR 20030054533 A KR20030054533 A KR 20030054533A KR 1020010084706 A KR1020010084706 A KR 1020010084706A KR 20010084706 A KR20010084706 A KR 20010084706A KR 20030054533 A KR20030054533 A KR 20030054533A
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- South Korea
- Prior art keywords
- damper
- boom
- discharge chute
- reclaimer
- screw shaft
- Prior art date
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Classifications
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- 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
- B65G11/00—Chutes
- B65G11/20—Auxiliary devices, e.g. for deflecting, controlling speed of, or agitating articles or solids
- B65G11/206—Auxiliary devices, e.g. for deflecting, controlling speed of, or agitating articles or solids for bulk
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- 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
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- 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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/02—Devices for feeding articles or materials to conveyors
- B65G47/16—Devices for feeding articles or materials to conveyors for feeding materials in bulk
- B65G47/18—Arrangements or applications of hoppers or chutes
- B65G47/19—Arrangements or applications of hoppers or chutes having means for controlling material flow, e.g. to prevent overloading
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- 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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/34—Devices for discharging articles or materials from conveyor
- B65G47/44—Arrangements or applications of hoppers or chutes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/06—Gearings for conveying rotary motion by endless flexible members with chains
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- 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
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chutes (AREA)
Abstract
Description
본 발명은 리클레이머 배출슈트의 붐 댐퍼 제어장치에 관한 것으로서, 보다 상세하게는 광석을 불출하는 리클레이머의 수송물이 하부로 낙하될 때 적절한 위치에 낙하되도록 유도하기 위한 리클레이머 배출슈트의 붐 댐퍼 자동제어장치에 관한 것이다.The present invention relates to a boom damper control device of the reclaimer discharge chute, and more particularly to the reclaimer discharge chute for inducing the transport of the reclaimer that discharges the ore to fall to the appropriate position when falling. Relates to a boom damper automatic control device.
더욱 상세하게는 수입된 광석을 리클레이머로 불출할 때 리클레이머의 붐 높이에 따라 배출슈트에 낙하되는 광석의 각도가 틀려지므로 붐 높이에 따른 부양값에 따라 배출슈트에 설치된 댐퍼를 자동 제어하는 방법으로써 광석의 낙광을 방지하고 설비보호 및 작업의 효율성을 높일 수 있는 리클레이머 배출슈트의 붐 댐퍼 자동제어장치에 관한 것이다.More specifically, when the imported ore is discharged to the reclaimer, the angle of the ore falling on the discharge chute is changed according to the boom height of the reclaimer. Therefore, the damper installed in the discharge chute is automatically controlled according to the flotation value according to the boom height. The present invention relates to an automatic control device for the boom damper of the reclaimer discharge chute, which can prevent falling of the ore and improve the protection of the facility and the operation efficiency.
[종래 기술 및 문제점][Prior Art and Problem]
일반적으로, 도 1에 도시된 바와 같이, 리클레이머(A)는 대형 기기로서 넓은 원료야드 위에 적재된 석탄이나 철광석 입자를 필요한 양만큼 불출하여 용광로나 코크스 공장으로 이송하는 장치로서, 야드에 적재된 원료를 회전형 버킷(C)으로 퍼 올려 붐(D)에 구성된 이송 컨베이어벨트(1)로 불출하여 배출슈트를 거쳐 원하는 곳으로 불출하게 된다.In general, as shown in Figure 1, the reclaimer (A) is a large device is a device for discharging the required amount of coal or iron ore particles loaded on a large raw material yard to the furnace or coke plant, it is loaded in the yard The raw material is pumped to the rotary bucket (C) and discharged to the conveying conveyor belt (1) configured in the boom (D) to be discharged to the desired place through the discharge chute.
상기 리클레이머(A)를 구성하는 붐은 야드에 적재된 원료의 높이에 따라 그높이가 조절되어 상기 회전형 버킷(C)의 적재 높이를 조절하게 되며, 이러한 가변적인 붐(D)의 높이변화에 대하여 리클레이머 붐 배출슈트(14,12)의 댐퍼(3)의 위치를 가변시켜 이송물이 낙하되는 위치를 조절하게 된다.The height of the boom constituting the reclaimer (A) is adjusted according to the height of the raw material loaded in the yard to adjust the loading height of the rotary bucket (C), the height of such a variable boom (D) By changing the position of the damper (3) of the reclaimer boom discharge chute 14,12 to the change to adjust the position where the conveyed object falls.
종래의 댐퍼 조절장치는 컨베이어벨트(1)로 이송된 광석의 배출높이, 즉 붐 높이에 따라 수작업으로 댐퍼 스크류(4)를 조작하여 댐퍼(3)의 위치를 제어하여 이송물의 낙하위치를 제어함으로써 이송되는 수송물에 대한 신속한 대처 능력이 떨어지고, 작업 효율성이 저하되며, 이송물의 낙하위치를 방치 할 경우 수송물이 원하는 위치에 낙하되지 않음으로써 설비파손 및 낙광 등의 문제점이 발생하게 되었다.The conventional damper adjusting device controls the position of the damper 3 by controlling the position of the damper 3 by manually operating the damper screw 4 according to the discharge height of the ore transferred to the conveyor belt 1, that is, the boom height. The ability to quickly cope with the transported goods is reduced, the work efficiency is lowered, and when the dropping location of the transport is left, the transport does not fall to the desired location, causing problems such as equipment damage and falling.
상기와 같은 문제점을 해결하기 위하여, 본 발명은 리클레이머의 수송물 불출작업시 리클레이머의 붐 높이(각도)에 따라 발생되는 광석의 낙하 각도만큼 댐퍼 위치를 자동 조정하여 수송물을 안정적으로 배출슈트를 통하여 배출시키기 위한 리클레이머 배출슈트의 붐 댐퍼 자동제어장치를 제공하는데 그 목적이 있다.In order to solve the above problems, the present invention automatically adjusts the damper position by the fall angle of the ore generated in accordance with the boom height (angle) of the reclaimer during transport of the reclaimer to stabilize the transport. It is an object of the present invention to provide an automatic control device of a boom damper of a reclaimer discharge chute for discharge through a discharge chute.
도 1은 종래의 리클레이머 배출슈트의 붐 댐퍼의 구성을 개략적으로 도시한 단면도;1 is a cross-sectional view schematically showing the configuration of a boom damper of a conventional reclaimer discharge chute;
도 2는 본 발명에 따른 리클레이머 배출슈트의 붐 댐퍼 제어장치의 구성을 도시한 구성도;Figure 2 is a block diagram showing the configuration of the boom damper control device of the reclaimer discharge chute according to the present invention;
도 3은 본 발명에 따른 리클레이머 배출슈트의 붐 댐퍼 제어장치가 리클레이머의 붐이 중간단에 위치할 때 작동되는 상태를 도시한 작용도;3 is a functional view showing a state in which the boom damper control device of the reclaimer discharge chute according to the present invention is operated when the boom of the reclaimer is located in the middle end;
도 4는 본 발명에 따른 리클레이머 배출슈트의 붐 댐퍼 제어장치가 리클레이머의 붐이 하단에 위치할 때 작동되는 상태를 도시한 작용도;4 is a functional view showing a state in which the boom damper control device of the reclaimer discharge chute according to the present invention is operated when the boom of the reclaimer is located at the bottom;
도 5는 본 발명에 따른 리클레이머 배출슈트의 붐 댐퍼 제어장치가 리클레이머의 붐이 상단에 위치할 때 작동되는 상태를 도시한 작용도;5 is a functional view showing a state in which the boom damper control device of the reclaimer discharge chute according to the present invention is operated when the boom of the reclaimer is located at the top;
도 6은 본 발명에 따른 리클레이머 배출슈트의 붐 댐퍼 제어장치가 붐의 부양값에 따라 작동되는 위치를 나타낸 제어도이다.6 is a control diagram showing a position in which the boom damper control device of the reclaimer discharge chute according to the present invention is operated in accordance with the boom support value.
♣도면의 주요부분에 대한 부호의 설명♣♣ Explanation of symbols for main part of drawing ♣
14:상부 배출슈트 4:댐퍼 스크류축 3:댐퍼 4:댐퍼 스크류축14: Upper discharge chute 4: Damper screw shaft 3: Damper 4: Damper screw shaft
9:연결체인 7:구동모터 5:댐퍼 위치감지센서 6:타겟바9: Connection chain 7: Driving motor 5: Damper position sensor 6: Target bar
12:하부 배출슈트 15:부양 실린더 13:부양값 검출센서12: Lower discharge chute 15: Float cylinder 13: Float value detection sensor
상기한 목적을 달성하기 위하여, 본 발명은 리클레이머 상부 배출슈트의 일측면을 관통하는 댐퍼 스크류축의 슈트내부 단부와 고정되는 댐퍼와, 상기 댐퍼 스크류축에 연결되는 연결체인과 축결합하면서 상부 배출슈트의 일측 외부면에 고정된 구동모터와, 상기 댐퍼 스크류축의 외부 단부에 고정되는 댐퍼 위치감지센서와, 이의 하부면에 근접하도록 설치되는 다수개의 타겟바와, 상기 상부 배출슈트의 하부에 설치되는 하부 배출슈트의 부양 실린더가 설치된 위치에 설치되는 부양값 검출센서로 구성되는 것을 특징으로 하는 리클레이머 배출슈트의 붐 댐퍼 자동제어장치를 제공한다.In order to achieve the above object, the present invention is the upper discharge while the shaft is coupled to the damper is fixed to the chute inner end of the damper screw shaft penetrating one side of the reclaimer upper discharge chute, and the connecting chain connected to the damper screw shaft A drive motor fixed to an outer surface of the chute, a damper position sensor fixed to an outer end of the damper screw shaft, a plurality of target bars installed to approach the lower surface of the chute, and a lower part installed below the upper discharge chute. Provided is an automatic control device for a boom damper of a reclaimer discharge chute, characterized in that it is composed of a float detection sensor installed at a location where a float cylinder of the discharge chute is installed.
이하, 첨부된 도면에 의거하여 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명에 따른 리클레이머 배출슈트의 붐 댐퍼 제어장치의 구성을 도시한 구성도이다.Figure 2 is a block diagram showing the configuration of the boom damper control device of the reclaimer discharge chute according to the present invention.
도 2에 도시된 바와 같이, 본 발명은 리클레이머의 회전형 버킷으로부터 배출되어 이송 컨베이어벨트를 거쳐 이송된 수송물을 배출하는 상부 배출슈트(14)의 일측면을 관통하여 댐퍼 스크류축(4)이 설치된다.As shown in FIG. 2, the present invention provides a damper screw shaft (4) through one side of an upper discharge chute (14) for discharging the transported goods discharged from the reclaimer's rotary bucket and transferred through the conveyer conveyor belt. ) Is installed.
상기 댐퍼 스크류축(4)의 상기 배출슈트(14) 내부 단부에는 댐퍼(3)가 고정되어 있으며, 상기 댐퍼 스크류축(4)의 배출슈트(14) 외부에는 연결체인(9)이 결합하면서 상기 상부 배출슈트(14)의 일측 외부면에 고정된 구동모터(7)의 구동축(8)에 결합하고 있어, 상기 구동모터(7)의 회전에 따라 상기 댐퍼 스크류축(4)이 전진 및 후진하도록 구성된다.The damper 3 is fixed to the inner end of the discharge chute 14 of the damper screw shaft 4, and the connection chain 9 is coupled to the outside of the discharge chute 14 of the damper screw shaft 4, It is coupled to the drive shaft 8 of the drive motor 7 fixed to one outer surface of the upper discharge chute 14, so that the damper screw shaft 4 moves forward and backward as the drive motor 7 rotates. It is composed.
상기 댐퍼 스크류축(4)의 외부 단부에 댐퍼 위치감지센서(5)가 고정 설치되어 있으며, 이의 하부에 상기 위치감지센서(5)와 근접하도록 다수개의 타겟바(6)가 고정 설치되어 있다.A damper position sensor 5 is fixedly installed at an outer end of the damper screw shaft 4, and a plurality of target bars 6 are fixedly installed at a lower portion thereof so as to be close to the position sensor 5.
상기 상부 배출슈트(14)의 하부에 설치되는 하부 배출슈트(12)에는 리클레이머의 붐 지지대(16)에 고정되어 상기 붐을 상승 또는 하강 작동시키는 부양 실린더(15)가 설치되어 있으며, 이에 근접된 위치에는 상기 부양 실린더(15)에 의한 부양값(붐 각도)을 검출하기 위한 검출센서(13)가 설치된다.The lower discharge chute 12 installed at the lower portion of the upper discharge chute 14 is fixed to the boom support 16 of the reclaimer and is provided with a float cylinder 15 for operating the boom up or down. In the proximate position, a detection sensor 13 for detecting the levitation value (boom angle) by the levitation cylinder 15 is provided.
상기 붐의 부양값을 검출하는 검출센서(13)는 상기 구동모터(7)에 전기 신호적으로 연결되어 있음과 동시에 상기 구동모터(7)는 상기한 댐퍼 위치감지센서(5)와도 전기 신호적으로 연결되어 있다.The detection sensor 13 which detects the boom's levitation value is electrically connected to the drive motor 7 and the drive motor 7 is also electrically connected to the damper position sensor 5. Is connected.
이하, 본 발명의 작용에 관하여 상세하게 설명한다.Hereinafter, the operation of the present invention will be described in detail.
도 3은 본 발명에 따른 리클레이머 배출슈트의 붐 댐퍼 제어장치가 리클레이머의 붐이 중간단에 위치할 때 작동되는 상태를 도시한 작용도이고, 도 4는 본 발명에 따른 리클레이머 배출슈트의 붐 댐퍼 제어장치가 리클레이머의 붐이 하단에 위치할 때 작동되는 상태를 도시한 작용도이며, 도 5는 본 발명에 따른 리클레이머 배출슈트의 붐 댐퍼 제어장치가 리클레이머의 붐이 상단에 위치할 때 작동되는 상태를 도시한 작용도이며, 도 6은 본 발명에 따른 리클레이머 배출슈트의 붐 댐퍼 제어장치가 붐의 부양값에 따라 작동되는 위치를 나타낸 제어도이다.3 is a functional diagram showing a state in which the boom damper control device of the reclaimer discharge chute according to the present invention is operated when the boom of the reclaimer is located in the middle end, Figure 4 is a reclaimer according to the present invention The boom damper control device of the discharge chute is a functional diagram showing a state that is operated when the boom of the reclaimer is located at the bottom, Figure 5 is a boom damper control device of the reclaimer discharge chute according to the present invention is a reclaimer Figure 6 is a functional diagram showing a state in which the operation of the boom is located at the top, Figure 6 is a control diagram showing the position where the boom damper control device of the reclaimer discharge chute according to the present invention is operated in accordance with the boom's support value. .
도 3에 도시된 바와 같이, 리클레이머의 붐이 중간단에 위치하여 수송물을 이송할 때에는 도 6에 도시된 공정도에서와 같이, 부양값이 상기 부양값 검출센서(13)에 의하여 18∼54로 검출되며, 이러한 부양값이 검출되면 상기 댐퍼 위치감지센서(5)는 2번 타겟바(6-2)를 감지하여 상기 구동모터(9)를 정지시켜 댐퍼(3)의 위치를 조절하여 소송물의 낙하위치를 제어하게 되는 것이다.As shown in Fig. 3, when the boom of the reclaimer is located at the intermediate end to transport the cargo, as shown in the process diagram shown in Fig. 6, the levitation value is 18 to 18 by the levitation detection sensor 13. 54, the damper position detecting sensor 5 detects the target bar 6-2 at the second stop and stops the driving motor 9 to adjust the position of the damper 3 It is to control the drop position of the suit.
도 4에 도시된 바와 같이, 리클레이머의 붐이 하단에 위치하여 수송물을 이송할 때에는 도 6에 도시된 공정도에서와 같이, 부양값이 상기 부양값 검출센서(13)에 의하여 55∼최대(Max.)로 검출되며, 이러한 부양값이 검출되면 상기 댐퍼 위치감지센서(5)는 3번 타겟바(6-3)를 감지할 때까지 상기 댐퍼(3)를 이동시키고, 상기 댐퍼(3)가 이동하여 상기 3번 타겟바(6-3)를 감지센서(5)가 감지하면 상기 구동모터(9)를 정지시켜 댐퍼(3)의 위치를 조절하여 소송물의 낙하위치를 제어하게 되는 것이다.As shown in FIG. 4, when the boom of the reclaimer is located at the lower end and transports the cargo, as in the process diagram shown in FIG. 6, the levitation value is 55 to maximum by the levitation detection sensor 13. And the damper position detecting sensor 5 moves the damper 3 until it detects the third target bar 6-3, and the damper 3 is detected. ) Is moved to detect the third target bar (6-3) by the sensor 5 is to stop the drive motor (9) to control the position of the damper (3) to control the falling position of the lawsuit .
또한, 도 5에 도시된 바와 같이, 리클레이머의 붐이 상단에 위치하여 수송물을 이송할 때에는 도 6에 도시된 공정도에서와 같이, 부양값이 상기 부양값 검출센서(13)에 의하여 0∼17로 검출되며, 이러한 부양값이 검출되면 상기 댐퍼 위치감지센서(5)는 1번 타겟바(6-1)를 감지할 때까지 상기 댐퍼(3)를 이동시키고, 상기 댐퍼(3)가 이동하여 상기 1번 타겟바(6-3)를 감지센서(5)가 감지하면 상기 구동모터(9)를 정지시켜 댐퍼(3)의 위치를 조절하여 소송물의 낙하위치를 제어하게 되는 것이다.In addition, as shown in Figure 5, when the boom of the reclaimer is located at the top to transport the transport, as shown in the process diagram shown in Figure 6, the levitation value is zero by the levitation detection sensor 13 When the levitation value is detected, the damper position sensor 5 moves the damper 3 until the first target bar 6-1 is detected, and the damper 3 is moved. When the moving sensor 1 detects the first target bar 6-3, the driving motor 9 is stopped to adjust the position of the damper 3 to control the drop position of the litigation object.
상기와 같은 리클레이머의 붐의 위치변화에 따른 부양값 및 이에 따른 붐 댐퍼(3)의 구동작용에 대한 실험적 자료를 하기하는 표 1에 나타내었다.Experimental data on the levitation value according to the change of the position of the boom of the reclaimer as described above and the driving action of the boom damper 3 is shown in Table 1 below.
상술한 바와 같이, 본 발명에 의하면 수동으로 조작하던 붐 댐퍼의 위치를붐의 각도에 따라서 자동적으로 부양값을 검출하여 댐퍼가 연동운전되므로 조업의 효율성을 높일 수 있고, 수송물이 외부로 흘러내리지 않으므로 낙광 방지에 효과가 있으며, 수송물이 슈트 구조물과 연결된 구조물 등에 직접 낙하되지 않으므로 설비 보호 등의 효과가 있다.As described above, according to the present invention, the position of the boom damper that was manually operated is automatically detected according to the angle of the boom, and the dampers are interlocked to operate, thereby increasing the efficiency of operation, and the cargo flows to the outside. Therefore, it is effective in preventing falling of light, and the transport is not directly dropped to the structure connected to the chute structure, such as the effect of protecting the facility.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010084706A KR100798074B1 (en) | 2001-12-26 | 2001-12-26 | Apparatus for automatically controling the boom damper of discharge chute of reclaimer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020010084706A KR100798074B1 (en) | 2001-12-26 | 2001-12-26 | Apparatus for automatically controling the boom damper of discharge chute of reclaimer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20030054533A true KR20030054533A (en) | 2003-07-02 |
| KR100798074B1 KR100798074B1 (en) | 2008-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020010084706A KR100798074B1 (en) | 2001-12-26 | 2001-12-26 | Apparatus for automatically controling the boom damper of discharge chute of reclaimer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101424446B1 (en) * | 2012-02-28 | 2014-08-04 | 현대제철 주식회사 | Chute for belt conveyor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0647235U (en) * | 1992-12-08 | 1994-06-28 | 飯島工業株式会社 | Powder quantitative supply device |
| KR0126969Y1 (en) * | 1995-05-22 | 1998-10-15 | 김만제 | Apparatus for preventing uneven distribution of loads carried by belt conveyor |
| KR19980062409U (en) * | 1997-04-02 | 1998-11-16 | 김정국 | Floating damper to prevent wear of the discharge head chute (DISCHARGE CHUTE) |
| KR200265097Y1 (en) * | 1997-09-25 | 2002-05-09 | 이구택 | Tripper damper |
-
2001
- 2001-12-26 KR KR1020010084706A patent/KR100798074B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101424446B1 (en) * | 2012-02-28 | 2014-08-04 | 현대제철 주식회사 | Chute for belt conveyor |
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| KR100798074B1 (en) | 2008-01-28 |
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