WO2016072556A1 - Double-structured dryer for drying aggregate - Google Patents

Double-structured dryer for drying aggregate Download PDF

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Publication number
WO2016072556A1
WO2016072556A1 PCT/KR2014/012349 KR2014012349W WO2016072556A1 WO 2016072556 A1 WO2016072556 A1 WO 2016072556A1 KR 2014012349 W KR2014012349 W KR 2014012349W WO 2016072556 A1 WO2016072556 A1 WO 2016072556A1
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WO
WIPO (PCT)
Prior art keywords
aggregate
drum
outer drum
dryer
drying
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PCT/KR2014/012349
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French (fr)
Korean (ko)
Inventor
윤태영
박희문
김부일
함상민
유평준
Original Assignee
한국건설기술연구원
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Publication of WO2016072556A1 publication Critical patent/WO2016072556A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
    • F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating

Definitions

  • the present invention relates to a dryer for drying aggregates, and more particularly, to dry aggregates made of a dual structure of an inner drum and an outer drum that rotates to transfer the aggregate from the outer drum to the inner drum while heating the double. It relates to a dual structure dryer for.
  • Asphalt Concrete is mixed in various ways such as asphalt, asphalt mixture, asphalt concrete, hot mixed hot spray bitumen pavement mixture (KSF2349) and HMA (hot mix asphalt).
  • General asphalt concrete mixture is a mixture of asphalt and coarse aggregate (gravel: aggregate), fine aggregate (sand :) or pavement filler (wheeler, stone powder: mineral filler) at heating or room temperature. It is divided into various types according to purpose, use, function, and construction method.
  • Coarse aggregate and fine aggregate in the material of the ascon contains a lot of moisture, and is heated and dried while mixing evenly to facilitate the sorting before being transferred to the sorting process, which is a post-treatment process. It is an aggregate dryer to carry out this drying treatment.
  • the aggregate dryer is a spiral blade for aggregate transport is formed in a rotating drum rotating in a drive device including a motor, and a burner is installed at one end of the drum to heat the aggregate, so that the drum rotates.
  • Aggregate injected into the interior is configured to be heated and dried.
  • the conventional aggregate dryer as described above is heated while the aggregate is moved in only one direction inside the drum because the drum is composed of a single. Therefore, there is a fear that sufficient heating will not be made while reaching from the inlet side to the outlet side of the drum.
  • the present invention is to solve the above problems, an object of the present invention is composed of a dual structure of the inner drum and the outer drum to rotate, the aggregate is injected into the outer drum is heated while moving to one end of the outer drum inner It is to provide a dual-structure dryer for drying the aggregate is introduced into the drum, the heating to move in one direction in the inner drum again, the aggregate is heated twice to improve the drying efficiency.
  • the outer drum is formed with an inlet for the aggregate is injected into the front end portion; It is installed in the outer drum coaxially with the outer drum and is installed to rotate with the outer drum, the transfer passage is formed to open the rear end to the aggregate falls from the outer drum, the aggregate is discharged to the front end An inner drum having a discharge passage formed therein; An aggregate rising member installed at a rear end of the outer drum to lift the aggregate moved to the rear end of the outer drum to drop the aggregate from the top; Drive means for rotating the outer drum; It characterized in that it comprises a heating means for heating the aggregate of the outer drum and the inner drum.
  • the aggregate injected into the inside of the outer drum is heated while being transported to the rear of the outer drum and then fed back to the inner drum and reheated while being transported to the front of the inner drum. Therefore, there is an effect that can double the drying performance of the aggregate without lengthening the dryer.
  • FIG. 1 is a front view schematically showing a dual structure dryer for drying aggregate according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the dual structure dryer for drying aggregate of FIG.
  • FIG. 3 is a perspective view showing a dual structure dryer for drying the aggregate of FIG.
  • FIG. 4 is a perspective view of the inner drum of the outer structure of the aggregate drying dryer of Figure 1;
  • FIG. 5 is a perspective view of an aggregate rising member installed in the outer drum of FIG. 4.
  • FIG. 6 is a perspective view of the inner drum of the dual structure dryer for drying aggregate of FIG.
  • FIG. 7 is a perspective view of an induction member installed in the inner drum of FIG. 6.
  • an aggregate drying dual structure dryer includes an outer drum 10 having an inlet 12 through which aggregate is introduced into a front end portion, and the outer drum. (10) an inner drum (20) installed coaxially with the outer drum (10) and rotating along with the outer drum (10), and provided at a rear end of the outer drum (10) and outer drum (10).
  • the outer drum 10 is formed of a cylindrical body having a predetermined diameter, the front end and the rear end is rotatably connected to the frame (F) of the equipment in which the dryer is installed.
  • the front surface 11 of the outer drum 10 is formed so that the inlet 12 through which aggregate is introduced.
  • the inlet 12 is formed at a position spaced a predetermined distance from the center, and receives the aggregate from the aggregate supply device configured outside the dryer.
  • the inner drum 20 is formed of a cylindrical body having a diameter smaller than that of the outer drum 10, a space is formed between the outer drum 10 and the inner drum 20, the aggregate is accommodated.
  • the rear end of the inner drum 20 is formed so that the delivery passage 22 is open so that the aggregate dropped from the outer drum 10 is introduced, the discharge passage 21 in which the aggregate is discharged in the center of the front end portion is formed It is.
  • the outer drum 10 and the inner drum 20 are coupled to each other to move the aggregate in the forward and backward direction while rotating together.
  • the first conveying blade 13 is formed to spirally extend along an axial direction on an inner circumferential surface of the outer drum 10
  • a second transfer blade 23 is formed to spirally extend along the axial direction.
  • the induction member 40 is installed to function to prevent the departure from.
  • the induction member 40 is an inclined plate 41 formed to be inclined toward the inside of the inner drum 20 at the rear end of the transmission passage 22, and a predetermined interval along the circumferential direction to the inclined plate 41 It includes a vertical plate 42 formed as.
  • the inclined plate 41 has a function of allowing the aggregate falling from the upper side to flow down the inclined plate 41 so as to have a cone shape that gradually decreases in diameter from the rear end of the inner drum 20 toward the front. do.
  • the vertical plate 42 is installed substantially perpendicular to the inclined plate 41 to induce aggregates to be collected inside the inclined plate 41 without protruding to the outside.
  • the discharge passage 21 of the inner drum 20 is provided with the aggregate receiving 70 for receiving the aggregate moved to the front end and discharged to the outside.
  • the aggregate support 70 is a funnel-shaped collection guide 71 of which the opening area is reduced from the upper side to the lower side, and one end is installed in communication with the lower portion of the collection guide 71 and the discharge guide is inclined downward toward the front ( 72).
  • a plurality of buckets 25 are formed at predetermined intervals at the front end of the inner drum 20 to deliver the aggregate to the aggregate receiving unit 70 by dropping the aggregate from the upper side.
  • the bucket 25 is formed of a substantially rectangular flat plate or a concave curved plate to function to drop the dried aggregate aggregate transferred to the front end of the inner drum 20 to the upper side.
  • the aggregate rising member 30 installed at the rear end of the outer drum 10 lifts up the aggregate moved to the rear end of the outer drum 10 and passes through the delivery passage 22 of the inner drum 20 to the inner drum 20.
  • the aggregate rising member 30 includes a disc-shaped hub 31 installed to close the rear end of the outer drum 10, and a plurality of lift plates 32 arranged at regular intervals on the inner circumferential surface of the hub 31. It is configured by.
  • the hub 31 has a diameter larger than the diameter of the outer drum 10 so that the aggregate transported to the rear end of the outer drum 10 is collected by falling into the hub 31 and the rising plate 32. To be taken up by.
  • the front end of the hub 31 is provided with a shielding plate 33 protruding radially inwardly so as to contact the rear end outer surface of the outer drum 10 to prevent the aggregate from coming out.
  • the heating means may be composed of a burner mounted to one end of the outer drum 10 or the inner drum 20, the discharge passage 21 is installed on the lower side of the aggregate receiving 70 as in this embodiment It may be composed of a burner 60 for spraying the flame into the inner drum 20 through.
  • the driving means for rotating the outer drum 10 includes a motor 51, a reduction mechanism 52 for reducing the power of the motor 51, and the power of the reduction mechanism 52 to the outer drum 10. It includes a power transmission mechanism 53 for transmitting.
  • the drive means may be configured using a variety of known drive devices in addition to.
  • Reference numeral 80 is a filter installed at the rear end of the inner drum 20 to filter harmful components and dust from the combustion gas discharged through the rear end of the inner drum 20.
  • the dryer thus constructed operates as follows.
  • Aggregate is input into the inside of the outer drum 10 through the inlet 12 from an external aggregate supply apparatus (for example, an aggregate conveyance conveyor) in the state which the outer drum 10 stopped.
  • the burner 60 which is a heating means, operates to make the inner drum 20 and the outer drum 10 inside a high temperature state, and the motor 51 of the driving means operates so that the outer drum 10 moves in one direction. Will rotate. At this time, since the inner drum 20 is fixed to the outer drum 10, the inner drum 20 and the outer drum 10 rotate together in one direction.
  • the aggregate introduced into the outer drum 10 is heated and dried while being gradually transported backward by the first transfer blade 13.
  • the aggregate moves to the rear end of the outer drum 10
  • the aggregate flows into the hub 31 of the aggregate elevating member 30 installed at the rear end of the outer drum 10, and then to the rising plate 32 of the hub 31. It is pulled up by the upper side.
  • the aggregate pulled up by the rise plate 32 of the aggregate rising member 30 is dropped from the upper side, and flows into the delivery passage 22 formed at the rear end of the inner drum 20. At this time, the aggregate is introduced into the inner drum 20 while flowing down into the inner drum 20 by the inclined plate 41 of the guide member 40 installed in the delivery passage 22.
  • Aggregate introduced into the inner drum 20 through the guide member 40 is heated and dried while being gradually transported forward by the second transfer blade 23 as the inner drum 20 rotates.
  • the aggregate conveyed to the front end of the inner drum 20 is almost completely dried.
  • the aggregate is completed, and the aggregate is pulled upward.
  • Aggregate spun up by the bucket 25 is dropped from the upper side flows into the collection guide 71 of the aggregate receiver 70 and flows down through the discharge guide 72 to be discharged to the outside.
  • the dual structure of the present invention is that the dryer is heated while being transported to the rear of the outer drum 10 and the aggregate is injected into the inner drum 20 and then to the front of the inner drum 20. Reheated during transfer. Therefore, it is possible to double the drying performance of the aggregate without lengthening the dryer.
  • the dual structure dryer of the present invention may be mounted on an existing stationary asphalt plant facility, but when applied to a mobile asphalt plant configured in a trailer, a more advantageous effect can be obtained. That is, when applied to a mobile asphalt plant having a limited installation area, it is possible to increase the drying path by increasing the transport path of the aggregate without lengthening the dryer, thereby greatly improving the drying efficiency.
  • the present invention can be applied to a fixed asphalt plant facility or a mobile asphalt plant facility configured in a trailer.

Abstract

The present invention relates to a double-structured dryer for drying aggregate, the dryer being formed in a double structure of a rotating inner drum and outer drum, so as to heat the aggregate twice and dry the same while transferring the aggregate from the outer drum to the inner drum. The double-structured dryer for drying aggregate of the present invention is characterized by comprising: an outer drum having in the front end an insertion hole into which aggregate is inserted; an inner drum installed coaxially to the outer drum and within the outer drum so as to rotate together with the outer drum, having a transfer passage opened in the rear end thereof so as to introduce aggregate falling from the outer drum, and having a discharge passage formed in the front end thereof so as to discharge the aggregate; an aggregate raising member installed at the rear end of the outer drum, to scoop up aggregate that moves toward the rear end of the outer drum and drop the aggregate from above; a driving means for rotating the outer drum; and a heating means for heating the aggregate in the outer drum and the inner drum.

Description

골재 건조용 이중 구조 드라이어Aggregate Drying Dryer For Aggregate Drying
본 발명은 골재를 건조하는 드라이어에 관한 것으로, 더욱 상세하게는 회전 운동하는 내측 드럼과 외측 드럼의 이중 구조로 이루어져 골재를 외측 드럼에서 내측 드럼으로 전달하면서 이중으로 가열하여 건조할 수 있도록 한 골재 건조용 이중 구조 드라이어에 관한 것이다. The present invention relates to a dryer for drying aggregates, and more particularly, to dry aggregates made of a dual structure of an inner drum and an outer drum that rotates to transfer the aggregate from the outer drum to the inner drum while heating the double. It relates to a dual structure dryer for.
아스콘이란 아스팔트 콘크리트(Asphalt Concrete)를 줄인 명칭이며, 아스팔트, 아스팔트혼합물, 아스팔트 콘크리트, 가열혼합 가열포설 역청 포장용 혼합물(KSF2349), HMA(hot mix asphalt)등 여러 가지로 혼합되고 있다. 일반적인 아스팔트 콘크리트 혼합물은 아스팔트와 굵은 골재(자갈:Aggregate), 잔 골재(모래:Sand) 또는 포장용 채움재(휠러,석분 : mineral filler)를 가열 또는 상온으로 혼합한 것으로 도로 포장이나 주차장 등에 사용되고 있으며, 사용목적이나 용도, 기능, 공법에 따라 여러 가지로 구분하고 있다.Ascon is short for Asphalt Concrete, and is mixed in various ways such as asphalt, asphalt mixture, asphalt concrete, hot mixed hot spray bitumen pavement mixture (KSF2349) and HMA (hot mix asphalt). General asphalt concrete mixture is a mixture of asphalt and coarse aggregate (gravel: aggregate), fine aggregate (sand :) or pavement filler (wheeler, stone powder: mineral filler) at heating or room temperature. It is divided into various types according to purpose, use, function, and construction method.
상기 아스콘의 재료 중에서 굵은 골재와 잔 골재는 많은 수분을 함유하고 있어서, 후처리 공정인 선별공정으로 이송되기 전에 선별을 용이하게 하기 위해 골고루 혼합되면서 가열되어 건조 처리되게 된다. 이러한 건조 처리를 수행하는 것이 골재 드라이어이다.Coarse aggregate and fine aggregate in the material of the ascon contains a lot of moisture, and is heated and dried while mixing evenly to facilitate the sorting before being transferred to the sorting process, which is a post-treatment process. It is an aggregate dryer to carry out this drying treatment.
통상적으로 골재 드라이어는 모터를 포함하는 구동장치에 회전하는 회전드럼 내부에 골재 이송을 위한 나선형 블레이드가 형성되고, 드럼의 일측 단부에 골재를 가열하기 위한 버너가 설치된 구조로 되어, 드럼이 회전하면서 드럼 내부에 투입된 골재가 가열되어 건조될 수 있도록 구성되어 있다. Typically, the aggregate dryer is a spiral blade for aggregate transport is formed in a rotating drum rotating in a drive device including a motor, and a burner is installed at one end of the drum to heat the aggregate, so that the drum rotates. Aggregate injected into the interior is configured to be heated and dried.
그러나, 상기와 같은 종래의 골재 드라이어는 드럼이 단일하게 구성되기 때문에 드럼 내부에서 골재가 일방향으로만 이동하면서 가열된다. 따라서 드럼의 입구측에서 출구측으로 도달하는 동안 충분한 가열이 이루어지지 않을 우려가 있다.However, the conventional aggregate dryer as described above is heated while the aggregate is moved in only one direction inside the drum because the drum is composed of a single. Therefore, there is a fear that sufficient heating will not be made while reaching from the inlet side to the outlet side of the drum.
본 발명은 상기와 같은 문제를 해결하기 위한 것으로, 본 발명의 목적은 회전 운동하는 내측 드럼과 외측 드럼의 이중 구조로 이루어지며, 외측 드럼에 투입된 골재가 외측 드럼의 일단부로 이동하면서 가열된 후 내측 드럼 내부로 투입되고, 다시 내측 드럼 내부에서 일방향으로 이동하면서 가열되도록 하여 골재가 이중으로 가열됨으로써 건조 효율을 향상시킬 수 있는 골재 건조용 이중 구조 드라이어를 제공함에 있다. The present invention is to solve the above problems, an object of the present invention is composed of a dual structure of the inner drum and the outer drum to rotate, the aggregate is injected into the outer drum is heated while moving to one end of the outer drum inner It is to provide a dual-structure dryer for drying the aggregate is introduced into the drum, the heating to move in one direction in the inner drum again, the aggregate is heated twice to improve the drying efficiency.
상기와 같은 목적을 달성하기 위한 본 발명의 골재 건조용 이중 구조 드라이어는, 전단부에 골재가 투입되는 투입구가 형성되어 있는 외측 드럼과; 상기 외측 드럼 내부에 외측 드럼과 동축 상으로 설치되어 외측 드럼과 함께 회전 운동하도록 설치되며, 후단부에 상기 외측 드럼에서 낙하한 골재가 유입되도록 전달통로가 개방되게 형성되고, 전단부에 골재가 배출되는 배출통로가 형성되어 있는 내측 드럼과; 상기 외측 드럼의 후단부에 설치되어, 외측 드럼의 후단부로 이동한 골재를 퍼올려서 상부에서 골재를 낙하시키는 골재상승부재와; 상기 외측 드럼을 회전시키는 구동수단과; 상기 외측 드럼 및 내측 드럼의 골재를 가열하는 가열수단을 포함하는 것을 특징으로 한다. The aggregate drying dual-structure dryer of the present invention for achieving the above object, the outer drum is formed with an inlet for the aggregate is injected into the front end portion; It is installed in the outer drum coaxially with the outer drum and is installed to rotate with the outer drum, the transfer passage is formed to open the rear end to the aggregate falls from the outer drum, the aggregate is discharged to the front end An inner drum having a discharge passage formed therein; An aggregate rising member installed at a rear end of the outer drum to lift the aggregate moved to the rear end of the outer drum to drop the aggregate from the top; Drive means for rotating the outer drum; It characterized in that it comprises a heating means for heating the aggregate of the outer drum and the inner drum.
본 발명에 따르면, 외측 드럼의 내부로 투입된 골재가 외측 드럼의 후방으로 이송되면서 가열된 후 다시 내측 드럼으로 투입되어 내측 드럼의 전방으로 이송되면서 재가열된다. 따라서 드라이어의 길이를 길게 하지 않고도 골재의 건조 성능을 배가시킬 수 있는 효과가 있다. According to the present invention, the aggregate injected into the inside of the outer drum is heated while being transported to the rear of the outer drum and then fed back to the inner drum and reheated while being transported to the front of the inner drum. Therefore, there is an effect that can double the drying performance of the aggregate without lengthening the dryer.
도 1은 본 발명의 일 실시예에 따른 골재 건조용 이중 구조 드라이어를 개략적으로 나타낸 정면도이다. 1 is a front view schematically showing a dual structure dryer for drying aggregate according to an embodiment of the present invention.
도 2는 도 1의 골재 건조용 이중 구조 드라이어의 단면도이다.2 is a cross-sectional view of the dual structure dryer for drying aggregate of FIG.
도 3은 도 1의 골재 건조용 이중 구조 드라이어를 나타낸 사시도이다.3 is a perspective view showing a dual structure dryer for drying the aggregate of FIG.
도 4는 도 1의 골재 건조용 이중 구조 드라이어의 외측 드럼을 나탄내 사시도이다.4 is a perspective view of the inner drum of the outer structure of the aggregate drying dryer of Figure 1;
도 5는 도 4의 외측 드럼에 설치되는 골재상승부재의 사시도이다.5 is a perspective view of an aggregate rising member installed in the outer drum of FIG. 4.
도 6은 도 1의 골재 건조용 이중 구조 드라이어의 내측 드럼을 나탄내 사시도이다.6 is a perspective view of the inner drum of the dual structure dryer for drying aggregate of FIG.
도 7은 도 6의 내측 드럼에 설치되는 유도부재의 사시도이다.7 is a perspective view of an induction member installed in the inner drum of FIG. 6.
이하 첨부된 도면을 참조하여 본 발명에 따른 골재 건조용 이중 구조 드라이어의 바람직한 실시예를 상세히 설명한다. Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the aggregate drying dual-structure dryer according to the invention in detail.
도 1 내지 도 7을 참조하면, 본 발명의 일 실시예에 따른 골재 건조용 이중 구조 드라이어는, 전단부에 골재가 투입되는 투입구(12)가 형성되어 있는 외측 드럼(10)과, 상기 외측 드럼(10) 내부에 외측 드럼(10)과 동축 상으로 설치되어 외측 드럼(10)과 함께 회전 운동하는 내측 드럼(20)과, 상기 외측 드럼(10)의 후단부에 설치되어 외측 드럼(10)의 후단부로 이동한 골재를 퍼올려서 상부에서 골재를 낙하시키는 골재상승부재(30)와, 상기 외측 드럼(10)을 회전시키는 구동수단과, 상기 외측 드럼(10) 및 내측 드럼(20)의 골재를 가열하는 가열수단을 포함한다. 1 to 7, an aggregate drying dual structure dryer according to an embodiment of the present invention includes an outer drum 10 having an inlet 12 through which aggregate is introduced into a front end portion, and the outer drum. (10) an inner drum (20) installed coaxially with the outer drum (10) and rotating along with the outer drum (10), and provided at a rear end of the outer drum (10) and outer drum (10). Aggregate elevating member 30 for dropping the aggregate from the top by raising the aggregate moved to the rear end of the drive means for rotating the outer drum 10, the aggregate of the outer drum 10 and the inner drum 20 Heating means for heating the.
상기 외측 드럼(10)은 소정의 직경을 갖는 원통체로 이루어지며, 전단부 및 후단부가 드라이어가 설치되는 장비의 프레임(F)에 회전 가능하게 연결된다. 상기 외측 드럼(10)의 전방면(11)에는 골재가 유입되는 투입구(12)가 개방되게 형성된다. 상기 투입구(12)는 중심에서부터 일정 거리 이격된 위치에 형성되며, 드라이어 외부에 구성된 골재 공급장치로부터 골재를 공급받는다. The outer drum 10 is formed of a cylindrical body having a predetermined diameter, the front end and the rear end is rotatably connected to the frame (F) of the equipment in which the dryer is installed. The front surface 11 of the outer drum 10 is formed so that the inlet 12 through which aggregate is introduced. The inlet 12 is formed at a position spaced a predetermined distance from the center, and receives the aggregate from the aggregate supply device configured outside the dryer.
상기 내측 드럼(20)은 상기 외측 드럼(10)보다 작은 직경을 갖는 원통체로 이루어져, 외측 드럼(10)과 내측 드럼(20) 사이에는 골재가 수용되는 공간이 형성된다. 상기 내측 드럼(20)의 후단부에는 상기 외측 드럼(10)에서 낙하한 골재가 유입되도록 전달통로(22)가 개방되게 형성되고, 전단부 중앙에는 골재가 배출되는 배출통로(21)가 형성된 구조로 되어 있다. The inner drum 20 is formed of a cylindrical body having a diameter smaller than that of the outer drum 10, a space is formed between the outer drum 10 and the inner drum 20, the aggregate is accommodated. The rear end of the inner drum 20 is formed so that the delivery passage 22 is open so that the aggregate dropped from the outer drum 10 is introduced, the discharge passage 21 in which the aggregate is discharged in the center of the front end portion is formed It is.
상기 외측 드럼(10)과 내측 드럼(20)은 서로 결합되어 함께 회전 운동하면서 골재를 전후방향으로 이송한다. 상기 외측 드럼(10)과 내측 드럼(20) 내부에서 골재가 일방향으로 이송되도록 하기 위하여 상기 외측 드럼(10)의 내주면에 제1이송블레이드(13)가 축방향을 따라 나선형으로 연장되게 형성되고, 상기 내측 드럼(20)의 내주면에 제2이송블레이드(23)가 축방향을 따라 나선형으로 연장되게 형성되어 있다. The outer drum 10 and the inner drum 20 are coupled to each other to move the aggregate in the forward and backward direction while rotating together. In order to allow aggregate to be transported in one direction in the outer drum 10 and the inner drum 20, the first conveying blade 13 is formed to spirally extend along an axial direction on an inner circumferential surface of the outer drum 10, On the inner circumferential surface of the inner drum 20, a second transfer blade 23 is formed to spirally extend along the axial direction.
상기 내측 드럼(20)의 전달통로(22)에는 외측 드럼(10)의 상부에서 낙하한 골재를 내측 드럼(20) 내부로 유도함과 더불어 내측 드럼(20)에 투입된 골재가 다시 외측 드럼(10)으로 이탈되지 않도록 방지하는 기능을 하는 유도부재(40)가 설치된다. 이 실시예에서 상기 유도부재(40)는 상기 전달통로(22)의 후단부에 내측 드럼(20)의 안쪽을 향해 경사지게 형성된 경사판(41)과, 상기 경사판(41)에 원주방향을 따라 일정 간격으로 형성된 수직판(42)을 포함한다. 상기 경사판(41)은 내측 드럼(20)의 후단부에서 전방을 향해 점차적으로 직경이 작아지는 콘(cone) 형태로 되어 상측에서 낙하하는 골재가 경사판(41)을 타고 흘러 내릴 수 있도록 하는 기능을 한다. 그리고, 상기 수직판(42)은 경사판(41)에 대체로 수직하게 설치되어 골재가 외부로 튀어 나가지 않고 경사판(41) 내측으로 모여질 수 있도록 유도하는 기능을 한다. In the delivery passage 22 of the inner drum 20 guides the aggregate dropped from the upper portion of the outer drum 10 into the inner drum 20 and the aggregate injected into the inner drum 20 is again the outer drum 10. Induction member 40 is installed to function to prevent the departure from. In this embodiment, the induction member 40 is an inclined plate 41 formed to be inclined toward the inside of the inner drum 20 at the rear end of the transmission passage 22, and a predetermined interval along the circumferential direction to the inclined plate 41 It includes a vertical plate 42 formed as. The inclined plate 41 has a function of allowing the aggregate falling from the upper side to flow down the inclined plate 41 so as to have a cone shape that gradually decreases in diameter from the rear end of the inner drum 20 toward the front. do. In addition, the vertical plate 42 is installed substantially perpendicular to the inclined plate 41 to induce aggregates to be collected inside the inclined plate 41 without protruding to the outside.
상기 내측 드럼(20)의 배출통로(21)에는 전단부로 이동한 골재를 받아서 외부로 배출하는 골재받이(70)가 설치된다. 상기 골재받이(70)는 상부에서 하측으로 갈수록 개구 면적이 줄어드는 깔때기 형태의 포집가이드(71)와, 일단이 상기 포집가이드(71)의 하부에 연통되게 설치되며 전방을 향해 하향 경사지게 형성된 배출가이드(72)로 구성된다. The discharge passage 21 of the inner drum 20 is provided with the aggregate receiving 70 for receiving the aggregate moved to the front end and discharged to the outside. The aggregate support 70 is a funnel-shaped collection guide 71 of which the opening area is reduced from the upper side to the lower side, and one end is installed in communication with the lower portion of the collection guide 71 and the discharge guide is inclined downward toward the front ( 72).
그리고, 상기 내측 드럼(20)의 전단부에는 골재를 퍼올려 상측에서 낙하시킴으로써 골재를 골재받이(70)로 전달하는 복수개의 버킷(25)이 일정 간격으로 배열된다. 상기 버킷(25)은 대략 사각형의 평판이나 오목한 곡면판으로 이루어져 내측 드럼(20)의 전단부로 이송된 건조 완료된 골재를 상측으로 퍼올려 낙하시키는 기능을 한다. In addition, a plurality of buckets 25 are formed at predetermined intervals at the front end of the inner drum 20 to deliver the aggregate to the aggregate receiving unit 70 by dropping the aggregate from the upper side. The bucket 25 is formed of a substantially rectangular flat plate or a concave curved plate to function to drop the dried aggregate aggregate transferred to the front end of the inner drum 20 to the upper side.
상기 외측 드럼(10)의 후단부에 설치된 골재상승부재(30)는 외측 드럼(10)의 후단부로 이동한 골재를 퍼올려 내측 드럼(20)의 전달통로(22)를 통해 내측 드럼(20)으로 골재를 투입하는 기능을 수행하게 된다. 상기 골재상승부재(30)는 외측 드럼(10)의 후단부를 폐쇄하도록 설치되는 원반형의 허브(31)와, 상기 허브(31)의 내주면에 일정 간격으로 배열된 복수개의 상승판(32)을 포함하여 구성된다. 여기서, 상기 허브(31)는 외측 드럼(10)의 직경보다 큰 직경을 갖도록 되어 외측 드럼(10)의 후단부로 이송된 골재가 허브(31)의 안쪽으로 낙하하여 포집된 후 상승판(32)에 의해 끌려 올라갈 수 있게 되어 있다. 상기 허브(31)의 전단부 테두리에는 반경방향 내측으로 돌출되어 외측 드럼(10)의 후단부 외측면에 접하면서 골재가 외부로 빠져나가지 않도록 하는 차폐판(33)이 설치되어 있다. The aggregate rising member 30 installed at the rear end of the outer drum 10 lifts up the aggregate moved to the rear end of the outer drum 10 and passes through the delivery passage 22 of the inner drum 20 to the inner drum 20. Into the aggregate to perform the function. The aggregate rising member 30 includes a disc-shaped hub 31 installed to close the rear end of the outer drum 10, and a plurality of lift plates 32 arranged at regular intervals on the inner circumferential surface of the hub 31. It is configured by. Here, the hub 31 has a diameter larger than the diameter of the outer drum 10 so that the aggregate transported to the rear end of the outer drum 10 is collected by falling into the hub 31 and the rising plate 32. To be taken up by. The front end of the hub 31 is provided with a shielding plate 33 protruding radially inwardly so as to contact the rear end outer surface of the outer drum 10 to prevent the aggregate from coming out.
상기 가열수단은 외측 드럼(10) 또는 내측 드럼(20)의 일단부에 장착되는 버너로 구성될 수 있는데, 이 실시예에서와 같이 상기 골재받이(70)의 하측에 설치되어 배출통로(21)를 통해 내측 드럼(20) 안쪽으로 화염을 분사하는 버너(60)로 구성될 수 있다. The heating means may be composed of a burner mounted to one end of the outer drum 10 or the inner drum 20, the discharge passage 21 is installed on the lower side of the aggregate receiving 70 as in this embodiment It may be composed of a burner 60 for spraying the flame into the inner drum 20 through.
상기 외측 드럼(10)을 회전시키는 구동수단은 모터(51)와, 상기 모터(51)의 동력을 감속하는 감속기구(52)와, 상기 감속기구(52)의 동력을 외측 드럼(10)으로 전달하는 동력전달기구(53)를 포함한다. 물론, 상기 구동수단은 이외에도 다양한 공지의 구동장치를 이용하여 구성될 수 있다. The driving means for rotating the outer drum 10 includes a motor 51, a reduction mechanism 52 for reducing the power of the motor 51, and the power of the reduction mechanism 52 to the outer drum 10. It includes a power transmission mechanism 53 for transmitting. Of course, the drive means may be configured using a variety of known drive devices in addition to.
미설명부호 80은 내측 드럼(20)의 후단부에 설치되어 내측 드럼(20)의 후단부를 통해 배출되는 연소 가스에서 유해 성분과 분진을 여과하는 필터이다. Reference numeral 80 is a filter installed at the rear end of the inner drum 20 to filter harmful components and dust from the combustion gas discharged through the rear end of the inner drum 20.
이와 같이 구성된 드라이어는 다음과 같이 작동한다. The dryer thus constructed operates as follows.
외측 드럼(10)이 정지된 상태에서 외부의 골재 공급장치(예를 들어 골재 이송용 컨베이어)로부터 투입구(12)를 통해 외측 드럼(10)의 내측에 골재를 투입한다. 그리고, 가열수단인 버너(60)가 작동하여 내측 드럼(20)과 외측 드럼(10) 내부를 고온 상태로 만듦과 더불어, 상기 구동수단의 모터(51)가 작동하여 외측 드럼(10)이 일방향으로 회전하게 된다. 이 때, 상기 내측 드럼(20)은 외측 드럼(10)에 고정되어 있으므로 내측 드럼(20)과 외측 드럼(10)은 함께 일방향으로 회전 운동한다. Aggregate is input into the inside of the outer drum 10 through the inlet 12 from an external aggregate supply apparatus (for example, an aggregate conveyance conveyor) in the state which the outer drum 10 stopped. In addition, the burner 60, which is a heating means, operates to make the inner drum 20 and the outer drum 10 inside a high temperature state, and the motor 51 of the driving means operates so that the outer drum 10 moves in one direction. Will rotate. At this time, since the inner drum 20 is fixed to the outer drum 10, the inner drum 20 and the outer drum 10 rotate together in one direction.
상기 외측 드럼(10)이 회전함에 따라 외측 드럼(10) 내부로 투입된 골재가 제1이송블레이드(13)에 의해 후방으로 점진적으로 이송되면서 가열되어 건조된다. 골재가 외측 드럼(10)의 후단부로 이동하게 되면 외측 드럼(10) 후단부에 설치된 골재상승부재(30)의 허브(31) 내측으로 유입된 후, 허브(31)의 상승판(32)에 의해 상측으로 끌려 올라가게 된다. As the outer drum 10 rotates, the aggregate introduced into the outer drum 10 is heated and dried while being gradually transported backward by the first transfer blade 13. When the aggregate moves to the rear end of the outer drum 10, the aggregate flows into the hub 31 of the aggregate elevating member 30 installed at the rear end of the outer drum 10, and then to the rising plate 32 of the hub 31. It is pulled up by the upper side.
상기 골재상승부재(30)의 상승판(32)에 의해 끌어 올려진 골재는 상측에서 낙하하게 되고, 내측 드럼(20) 후단부에 형성된 전달통로(22) 내측으로 유입된다. 이 때, 골재는 전달통로(22)에 설치된 유도부재(40)의 경사판(41)에 의해 내측 드럼(20) 안쪽으로 흘러내리면서 내측 드럼(20) 내부로 투입된다. The aggregate pulled up by the rise plate 32 of the aggregate rising member 30 is dropped from the upper side, and flows into the delivery passage 22 formed at the rear end of the inner drum 20. At this time, the aggregate is introduced into the inner drum 20 while flowing down into the inner drum 20 by the inclined plate 41 of the guide member 40 installed in the delivery passage 22.
상기 유도부재(40)를 통해 내측 드럼(20) 내로 투입된 골재는 내측 드럼(20)이 회전함에 따라 제2이송블레이드(23)에 의해 점차적으로 전방으로 이송되면서 가열되어건조된다. Aggregate introduced into the inner drum 20 through the guide member 40 is heated and dried while being gradually transported forward by the second transfer blade 23 as the inner drum 20 rotates.
상기 내측 드럼(20)의 전단부로 이송된 골재는 거의 완전히 건조된 상태가 된다. 내측 드럼(20)의 전단부에서는 버킷(25)이 상승하면서 건조가 완료된 골재를 상측으로 끌어 올리게 된다. 버킷(25)에 의해 상측으로 퍼올려진 골재는 상측에서 낙하하여 골재받이(70)의 포집가이드(71) 내측으로 유입된 후 배출가이드(72)를 통해서 흘러 내려 외부로 배출된다. The aggregate conveyed to the front end of the inner drum 20 is almost completely dried. At the front end of the inner drum 20, as the bucket 25 is raised, the aggregate is completed, and the aggregate is pulled upward. Aggregate spun up by the bucket 25 is dropped from the upper side flows into the collection guide 71 of the aggregate receiver 70 and flows down through the discharge guide 72 to be discharged to the outside.
이와 같이 본 발명의 이중 구조는 드라이어는 외측 드럼(10) 내부로 투입된 골재가 외측 드럼(10)의 후방으로 이송되면서 가열된 후 다시 내측 드럼(20)으로 투입되어 내측 드럼(20)의 전방으로 이송되면서 재가열된다. 따라서 드라이어의 길이를 길게 하지 않고도 골재의 건조 성능을 배가시킬 수 있게 된다. As described above, the dual structure of the present invention is that the dryer is heated while being transported to the rear of the outer drum 10 and the aggregate is injected into the inner drum 20 and then to the front of the inner drum 20. Reheated during transfer. Therefore, it is possible to double the drying performance of the aggregate without lengthening the dryer.
본 발명의 이중 구조 드라이어는 기존의 고정식 아스팔트 플랜트 설비에 장착될 수도 있으나, 트레일러에 구성된 이동형 아스팔트 플랜트에 적용했을 때 더욱 유리한 효과를 얻을 수 있다. 즉, 설치 면적이 제한되어 있는 이동형 아스팔트 플랜트에 적용하게 되면, 드라이어의 길이를 길게 하지 않고서도 골재의 이송 경로를 길게 증가시켜 건조시킬 수 있으므로 건조 효율을 대폭 향상시킬 수 있게 되는 것이다. The dual structure dryer of the present invention may be mounted on an existing stationary asphalt plant facility, but when applied to a mobile asphalt plant configured in a trailer, a more advantageous effect can be obtained. That is, when applied to a mobile asphalt plant having a limited installation area, it is possible to increase the drying path by increasing the transport path of the aggregate without lengthening the dryer, thereby greatly improving the drying efficiency.
이상에서 본 발명은 실시예를 참조하여 상세히 설명되었으나, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 상기에서 설명된 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 부가 및 변형이 가능할 것임은 당연하며, 이와 같은 변형된 실시 형태들 역시 아래에 첨부한 특허청구범위에 의하여 정하여지는 본 발명의 보호 범위에 속하는 것으로 이해되어야 할 것이다.Although the present invention has been described in detail with reference to the embodiments, those skilled in the art to which the present invention pertains will be capable of various substitutions, additions, and modifications without departing from the technical spirit described above. It is to be understood that such modified embodiments are also within the protection scope of the present invention as defined by the appended claims.
본 발명은 고정식 아스팔트 플랜트 설비 또는 트레일러에 구성된 이동형 아스팔트 플랜트 설비 등에 적용될 수 있다.The present invention can be applied to a fixed asphalt plant facility or a mobile asphalt plant facility configured in a trailer.

Claims (11)

  1. 전단부에 골재가 투입되는 투입구(12)가 형성되어 있는 외측 드럼(10)과;An outer drum 10 having an injection hole 12 through which aggregate is injected into the front end portion;
    상기 외측 드럼(10) 내부에 외측 드럼(10)과 동축 상으로 설치되어 외측 드럼(10)과 함께 회전 운동하도록 설치되며, 후단부에 상기 외측 드럼(10)에서 낙하한 골재가 유입되도록 전달통로(22)가 개방되게 형성되고, 전단부에 골재가 배출되는 배출통로(21)가 형성되어 있는 내측 드럼(20)과;It is installed in the outer drum 10 coaxially with the outer drum 10 is installed to rotate with the outer drum 10, the transfer passage so that the aggregate dropped from the outer drum 10 flows into the rear end. An inner drum 20 formed with the opening 22 and having a discharge passage 21 through which aggregate is discharged at the front end portion;
    상기 외측 드럼(10)의 후단부에 설치되어, 외측 드럼(10)의 후단부로 이동한 골재를 퍼올려서 상부에서 골재를 낙하시키는 골재상승부재(30)와;An aggregate elevating member (30) installed at the rear end of the outer drum (10) to scoop up the aggregate moved to the rear end of the outer drum (10) to drop the aggregate from the top;
    상기 외측 드럼(10)을 회전시키는 구동수단과;Drive means for rotating the outer drum (10);
    상기 외측 드럼(10) 및 내측 드럼(20)의 골재를 가열하는 가열수단을 포함하는 것을 특징으로 하는 골재 건조용 이중 구조 드라이어.Drying dual structure dryer, characterized in that it comprises a heating means for heating the aggregate of the outer drum (10) and the inner drum (20).
  2. 제1항에 있어서, 상기 내측 드럼(20)의 전달통로(22)에 설치되어, 외측 드럼(10)의 상부에서 낙하한 골재를 내측 드럼(20) 내부로 유도함과 더불어 내측 드럼(20)에 투입된 골재가 다시 외측 드럼(10)으로 이탈되지 않도록 방지하는 기능을 하는 유도부재(40)를 더 포함하는 것을 특징으로 하는 골재 건조용 이중 구조 드라이어.According to claim 1, It is provided in the delivery passage 22 of the inner drum 20, guides the aggregates dropped from the upper portion of the outer drum 10 into the inner drum 20 and to the inner drum 20 Aggregate drying dual-structure dryer, characterized in that it further comprises an induction member (40) to prevent the input aggregate from being separated back to the outer drum (10).
  3. 제2항에 있어서, 상기 유도부재(40)는 상기 전달통로(22)의 후단부에 내측 드럼(20)의 안쪽을 향해 경사지게 형성된 경사판(41)과, 상기 경사판(41)에 원주방향을 따라 일정 간격으로 형성된 수직판(42)을 포함하는 것을 특징으로 하는 특징으로 하는 골재 건조용 이중 구조 드라이어.According to claim 2, The guide member 40 is inclined plate 41 formed inclined toward the inner side of the inner drum 20 at the rear end of the transmission passage 22, and in the circumferential direction to the inclined plate 41 Dryer drying dual structure dryer characterized in that it comprises a vertical plate 42 formed at a predetermined interval.
  4. 제1항에 있어서, 상기 내측 드럼(20)의 배출통로(21)에는 골재를 받아서 외부로 배출하는 골재받이(70)가 설치된 것을 특징으로 하는 골재 건조용 이중 구조 드라이어.2. The dual structure dryer for drying the aggregate according to claim 1, wherein the discharge passage 21 of the inner drum 20 is provided with an aggregate receiver 70 for receiving aggregate and discharging it to the outside.
  5. 제4항에 있어서, 상기 골재받이(70)는 상부에서 하측으로 갈수록 개구 면적이 줄어드는 깔때기 형태의 포집가이드(71)와, 일단이 상기 포집가이드(71)의 하부에 연통되게 설치되며 전방을 향해 하향 경사지게 형성된 배출가이드(72)를 포함하는 것을 특징으로 하는 골재 건조용 이중 구조 드라이어.According to claim 4, The aggregate support 70 is a funnel-shaped collection guide 71 of the opening area is reduced from the upper side to the lower side, one end is installed in communication with the lower portion of the collection guide 71 toward the front Dryer dual structure dryer characterized in that it comprises a discharge guide 72 formed to be inclined downward.
  6. 제4항에 있어서, 상기 내측 드럼(20)의 전단부에는 골재를 퍼올려 상측에서 낙하시킴으로써 골재를 골재받이(70)로 전달하는 복수개의 버킷(25)이 일정 간격으로 배열된 것을 특징으로 하는 골재 건조용 이중 구조 드라이어.The method of claim 4, wherein the front end portion of the inner drum 20 is characterized in that a plurality of buckets 25 for delivering the aggregate to the aggregate receiving 70 by raising the aggregates by dropping from the upper side is arranged at regular intervals. Dual structure dryer for drying aggregate.
  7. 제4항에 있어서, 상기 가열수단은 상기 골재받이(70)의 하측에 설치되어 배출통로(21)를 통해 내측 드럼(20) 안쪽으로 화염을 분사하는 버너(60)인 것을 특징으로 하는 골재 건조용 이중 구조 드라이어.5. The aggregate drying method according to claim 4, wherein the heating means is a burner (60) installed at a lower side of the aggregate receiver (70) to inject a flame into the inner drum (20) through the discharge passage (21). Dual structure dryer for
  8. 제1항에 있어서, 상기 골재상승부재(30)는 외측 드럼(10)의 후단부를 폐쇄하도록 설치되는 원반형의 허브(31)와, 상기 허브(31)의 내주면에 일정 간격으로 배열된 복수개의 상승판(32)을 포함하는 것을 특징으로 하는 골재 건조용 이중 구조 드라이어.According to claim 1, wherein the aggregate rising member 30 is a disk-shaped hub 31 which is installed to close the rear end of the outer drum 10, and a plurality of lifts arranged at regular intervals on the inner peripheral surface of the hub (31) A dual structure dryer for drying aggregate, comprising a plate (32).
  9. 제8항에 있어서, 상기 허브(31)는 외측 드럼(10)의 직경보다 큰 직경을 가지며, 상기 허브(31)의 전단부 테두리에는 반경방향 내측으로 돌출되어 외측 드럼(10)의 후단부 외측면에 접하면서 골재가 외부로 빠져나가지 않도록 하는 차폐판(33)을 구비한 것을 특징으로 하는 골재 건조용 이중 구조 드라이어.According to claim 8, wherein the hub 31 has a diameter larger than the diameter of the outer drum 10, the front edge of the hub 31 protrudes radially inward to the outside of the rear end of the outer drum (10) The aggregate drying dual-structure dryer, characterized in that the shielding plate (33) provided with a side that does not escape to the outside while contacting the side.
  10. 제1항에 있어서, 상기 외측 드럼(10)의 내주면에 축방향을 따라 나선형으로 연장된 제1이송블레이드(13)가 형성된 것을 특징으로 하는 골재 건조용 이중 구조 드라이어.2. The dual structure dryer for drying aggregate according to claim 1, wherein a first transfer blade (13) spirally extending along the axial direction is formed on the inner circumferential surface of the outer drum (10).
  11. 제1항에 있어서, 상기 내측 드럼(20)의 내주면에 축방향을 따라 나선형으로 연장된 제2이송블레이드(23)가 형성된 것을 특징으로 하는 골재 건조용 이중 구조 드라이어.2. The dual structure dryer for drying aggregate according to claim 1, wherein a second transfer blade (23) spirally extending along the axial direction is formed on the inner circumferential surface of the inner drum (20).
PCT/KR2014/012349 2014-11-05 2014-12-15 Double-structured dryer for drying aggregate WO2016072556A1 (en)

Applications Claiming Priority (2)

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KR20140153009 2014-11-05
KR10-2014-0153009 2014-11-05

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100678690B1 (en) * 2005-01-24 2007-02-02 임경수 Wet waste drying maching
KR20110121429A (en) * 2010-04-30 2011-11-07 한정근 Rotary dry machine including double drum
JP2012047373A (en) * 2010-08-25 2012-03-08 Okawara Mfg Co Ltd Horizontal continuous conduction heat transfer type dryer
KR101197302B1 (en) * 2012-05-11 2012-11-05 대형환경 주식회사 Double Pipe Rotary Type Drier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100678690B1 (en) * 2005-01-24 2007-02-02 임경수 Wet waste drying maching
KR20110121429A (en) * 2010-04-30 2011-11-07 한정근 Rotary dry machine including double drum
JP2012047373A (en) * 2010-08-25 2012-03-08 Okawara Mfg Co Ltd Horizontal continuous conduction heat transfer type dryer
KR101197302B1 (en) * 2012-05-11 2012-11-05 대형환경 주식회사 Double Pipe Rotary Type Drier

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