KR20040021038A - Aggregate Heating Structure for Asphalt-Concrete - Google Patents

Aggregate Heating Structure for Asphalt-Concrete Download PDF

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Publication number
KR20040021038A
KR20040021038A KR1020020052473A KR20020052473A KR20040021038A KR 20040021038 A KR20040021038 A KR 20040021038A KR 1020020052473 A KR1020020052473 A KR 1020020052473A KR 20020052473 A KR20020052473 A KR 20020052473A KR 20040021038 A KR20040021038 A KR 20040021038A
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South Korea
Prior art keywords
gas
aggregate
dryer
ascon
burner
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KR1020020052473A
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Korean (ko)
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동일천
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동일천
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Priority to KR1020020052473A priority Critical patent/KR20040021038A/en
Publication of KR20040021038A publication Critical patent/KR20040021038A/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/08—Apparatus for transporting and heating or melting asphalt, bitumen, tar, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/46—Arrangements for applying super- or sub-atmospheric pressure during mixing; Arrangements for cooling or heating during mixing, e.g. by introducing vapour
    • B28C5/466—Heating, e.g. using steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
    • B28C7/0023—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust by heating or cooling
    • B28C7/003—Heating, e.g. using steam
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions

Abstract

PURPOSE: An apparatus for heating an aggregate for ascon production is provided to avoid hazardous gases and fine dust generated upon combustion from being generated and exhausted, prevent environmental contamination and reduce noise generation. CONSTITUTION: A drier(50) of an ascon production apparatus receives an ascon aggregate from an aggregate box by using a conveyer feeding apparatus. A gas burner(40) capable of releasing heat from one side of the drier(50) to the inside thereof and heating is provided, and then gas is fed to the gas burner(40) from a storage tank(80) to a gas feeding unit(100) including liquid valves(81), an emergency shutoff valve(83), a vaporizer(70), a pressure controller(85) and a gas main control valve(86) capable of stably controlling a pressure and feed amount by a main ignition nozzle, thereby operating the drier(50) to be heated.

Description

아스콘 제조용 골재 가열장치 {Aggregate Heating Structure for Asphalt-Concrete}Aggregate Heating Structure for Asphalt-Concrete}

본 발명은 아스콘 제조용 골재 가열장치에 대한 것으로서, 더 상세하게는 중유(벙커C유 등)를 연료로 하는 오일버너를 사용하는 것이 아니라 사용이 간편하고, 소음이 적으며, 유해가스의 발생이 없는 천연 가스를 연료로 사용하는 가스버너를 채택 운용하는데 특징이 있는 것이다.The present invention relates to an aggregate heating device for producing asphalt concrete, and more particularly, it is not using an oil burner using heavy oil (such as bunker C oil) as fuel, but it is easy to use, has low noise, and generates no harmful gas. It is characteristic to adopt and operate gas burner which uses natural gas as fuel.

일반적으로 아스콘이라 하면 아스팔트 콘크리트를 말하며, 주로 아스팔트와, 채움재(Filler)와, 잔 골재와, 굵은 골재를 혼합하여 제조한다.In general, ascon refers to asphalt concrete, and is mainly manufactured by mixing asphalt, filler (Filler), fine aggregate, and coarse aggregate.

참고로, 상기한 채움재로서는 석회암 분말이 널리 쓰이며, 대부분이 No.200체를 통과(KSF 3501:#200 통과율=70~100%)하는 것이고, 잔 골재란 강모래, 부순 모래 등으로서 No.8체를 거의 다 통과하고 No.200체에 거의 다 남은 골재를 말하며, 굵은 골재란 분쇄한 돌로서 No.8체에 거의 다 남은 골재를 말한다.For reference, limestone powder is widely used as the filler, and most of them pass through No. 200 sieves (KSF 3501: # 200 passing rate = 70 to 100%), and fine aggregate is No. 8 as steel sand and crushed sand. It means the aggregate which almost passed through the sieve and almost remained in No. 200 sieve, and the coarse aggregate is the crushed stone which means the aggregate remaining in the No. 8 sieve.

도 1은 종래의 아스콘 제조장치를 보인 개략도이며, 이를 통해 종래의 아스콘 제조과정을 설명한다.1 is a schematic view showing a conventional ascon manufacturing apparatus, through which a conventional ascon manufacturing process will be described.

먼저, 상기 도면에서 보듯이 쇄석과, 모래와, 돌가루 및 자갈 등 각각의 골재를 담고 있는 골재함(11)으로부터 공급되는 골재를 이송벨트(12)를 통해 드라이어(13)의 내부로 이송시킨 후, 오일버너(14)를 통해 드라이어(13) 내부에 충진된골재를 가열한다.First, as shown in the drawings, the aggregates supplied from the aggregate box 11 containing the respective aggregates such as crushed stone, sand, stone powder and gravel are transferred to the inside of the dryer 13 through the transfer belt 12. Then, the aggregate filled in the dryer 13 is heated through the oil burner 14.

이 때, 오일버너(14)에 의해 연소되면서 발생되는 분진이나 유해가스들은 공기배출장치(15)와 집진장치(도시하지 않았음)를 통해 외부로 배출하도록 해야한다.At this time, the dust or harmful gases generated by the combustion by the oil burner 14 should be discharged to the outside through the air discharge device 15 and the dust collector (not shown).

이어서, 드라이어(13) 내에서 가열된 골재들은 이송용 엘리베이터(16)에 의해 스크린(17)으로 보내게 되고, 그 스크린(17)에서 크기별로 분류하며, 배합설계에 의하여 계량한 후, 하강시켜 믹서기(18)로 보내고, 그 믹서기(18)의 내부에서 채움재 타워(19)로부터 충진되는 각종 미세 채움재 및 아스팔트와 혼합하여 아스콘을 제조하며, 제조된 아스콘은 상기 믹서기(18)의 아래에서 대기하고 있는 아스콘 운반차량으로 받아 사용처로 운반한다.Subsequently, the aggregates heated in the dryer 13 are sent to the screen 17 by the transport elevator 16, sorted by size on the screen 17, weighed by the compounding design, and then lowered. To the mixer 18 and mixed with various fine fillers and asphalt filled from the filler tower 19 inside the mixer 18 to produce ascon, and the prepared ascon waits under the mixer 18 Take it with an Ascon carrying vehicle and carry it to the place of use.

그러나 이러한 종래의 아스콘 제조장치에 있어서는 벙커C유 등 중유를 연료로 하는 오일버너(14)를 사용하기 때문에 많은 연료의 소모량이 많아 생산원가가 높아지고, 연소시 발생하는 유해가스(아황산가스 및 기타)와 및 미세먼지가 대기 중으로 방출되기 때문에 환경오염의 문제가 있으며, 오일버너의 소음이 크기 때문에 도시 인근에서는 생산할 수 없는 단점이 있다.However, in the conventional ascon production apparatus, since the oil burner 14 that uses heavy oil such as bunker C oil is used, a large amount of fuel is consumed, resulting in high production costs, and harmful gases generated during combustion (sulphite gas and others). W and fine dust is emitted into the air there is a problem of environmental pollution, because the noise of the oil burner has a disadvantage that can not be produced in the vicinity of the city.

따라서 본 발명은 상기와 같은 종래의 문제점을 감안하여 이를 해결 보완하고자 안출한 것으로, 발명의 주된 목적은 아스콘용 골재를 가열할 때, LNG(또는 LPG)를 연료로 사용하는 가스버너를 채택하여 사용할 수 있도록 하므로써 연소시발생하는 유해가스 및 미세먼지가 발생하여 배출되지 않도록 하고, 더 나가서 환경오염을 예방하는 것은 물론 소음이 적게 발생하도록 하고자 하는데 있다.Therefore, the present invention has been made in view of the conventional problems as described above to solve the complement, the main object of the present invention when heating the aggregate for ascon, using a gas burner that uses LNG (or LPG) as fuel By doing so, harmful gases and fine dust generated during combustion are not generated and discharged, and it is intended to go further to prevent environmental pollution as well as to generate less noise.

상기 목적을 달성하기 위한 본 발명의 특징적인 구성은 골재함으로부터 컨베이어 이송장치를 사용하여 아스콘용 골재를 공급받는 아스콘 제조장치의 드라이어에 있어서, 상기 드라이어의 일측편에서 그 내부로 열을 발산하여 가열할 수 있는 가스버너를 구비한 후, 상기 가스버너로 가스를 공급하되, 저장탱크로부터 액체밸브들과 긴급차단밸브와, 기화기와, 압력조정기와, 주점화 노즐로 안정된 압력과 공급량을 조절할 수 있는 가스 메인 콘트롤밸브를 포함하는 가스공급수단을 통해 드라이어를 가열 작동시킬 수 있도록 하는데 있다.A characteristic configuration of the present invention for achieving the above object is a dryer of an asphalt concrete manufacturing apparatus that is supplied with aggregate for asphalt concrete from the aggregate using a conveyor conveying device, the heat is emitted from the one side of the dryer to the inside After providing a gas burner capable of supplying gas to the gas burner, the liquid valves, emergency shutoff valves, vaporizers, pressure regulators, and ignition nozzles can be used to control the stable pressure and supply from the storage tank. A gas supply means including a gas main control valve allows the dryer to be heated and operated.

도 1은 종래의 아스콘 제조장치를 보인 구성도1 is a block diagram showing a conventional ascon manufacturing apparatus

도 2는 본 발명의 아스콘 제조장치를 보인 구성도Figure 2 is a block diagram showing an ascon production apparatus of the present invention

도 3은 본 발명의 가스공급 구조를 보인 예시도Figure 3 is an exemplary view showing a gas supply structure of the present invention

<도면의 주요 부분에 대한 부호설명><Code Description of Main Parts of Drawing>

30 : 컨베이어31 : 골재함30: conveyor 31: aggregate box

40 : 가스버너50 : 드라이어40 gas burner 50 dryer

60 : 믹서기70 : 기화기60: blender 70: vaporizer

80 : 가스 저장탱크81 : 액체밸브80: gas storage tank 81: liquid valve

82 : 가스필터83 : 긴급차단밸브82 gas filter 83 emergency shutoff valve

84 : 고압헤드85 : 압력조정기84: high pressure head 85: pressure regulator

86 : 가스 메인 콘트롤밸브87 : 준저압헤드86 gas main control valve 87 quasi-low pressure head

90 : 파이롯트 버너 어셈브리91 : 파이롯트 버너90: pilot burner assembly 91: pilot burner

92 : 보조 콘트롤밸브93 : 콘트롤모터92: auxiliary control valve 93: control motor

100 : 가스공급수단100: gas supply means

이하 본 발명을 첨부 도면에 따라 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 아스콘 제조장치를 보인 예시도이고, 도 3은 본 발명의 가스버너와 가스버너로의 가스 공급구조를 보인 구성도이다.Figure 2 is an exemplary view showing an asphalt concrete manufacturing apparatus of the present invention, Figure 3 is a block diagram showing a gas supply structure to the gas burner and the gas burner of the present invention.

먼저, 아스콘 제조장치는 도 2에서 보는 바와 같이 각각의 여러 가지 골재를 담아두는 골재함(31)과, 상기한 각각의 골재함으로부터 골재를 이송 공급하는 컨베이어(32)와, 컨베이어로써 공급된 골재를 가열하기 위해 가스버너(40)를 포함하는 드라이어(50)와, 드라이어에서 가열된 골재를 섞기 위한 믹서기(60)등으로 이루어 진다.First, the asphalt concrete manufacturing apparatus, as shown in Figure 2, each aggregate aggregate containing 31, a conveyor 32 for transporting and supplying aggregates from each of the aggregates, and aggregates supplied as a conveyor It consists of a dryer 50 including a gas burner 40 to heat it, a mixer 60 for mixing the aggregate heated in the dryer.

이때, 상기한 드라이어(50) 내부의 골재를 가열하기 위한 가스버너(40)는 도3에서 보는 바와 같이 액상의 가스를 기화기(70)를 통해 기화된 가스를 공급 받아 점화된다.At this time, the gas burner 40 for heating the aggregates in the dryer 50 is ignited by receiving gaseous gas through the vaporizer 70 as shown in FIG. 3.

즉, 가스 저장탱크(80)로부터 액체밸브(81)와, 가스필터(82)와, 안전을 위해 부착한 긴급차단밸브(83)를 통해 공급되는 가스는 기화기(70)로 보내진다.That is, the gas supplied from the gas storage tank 80 through the liquid valve 81, the gas filter 82, and the emergency shut-off valve 83 attached for safety is sent to the vaporizer 70.

상기한 기화기(70)에서는 별도의 전기히터에 의해 가열된 물을 사용하여 액상의 가스를 기체로 기화시키며, 이때, 물의 온도는 약 60℃ ∼ 65℃이며, 물의 온도가 65℃ 이상이 되면 전기히터의 작동이 중지되도록 되어 있으며, 이는 안전밸브에 작용하는 압력이 압력이 18kg/㎤ 일때이다.The vaporizer 70 vaporizes the liquid gas into a gas by using water heated by a separate electric heater. At this time, the temperature of the water is about 60 ℃ to 65 ℃, when the temperature of the water is 65 ℃ or more electric The heater is deactivated when the pressure on the safety valve is 18 kg / cm 3.

이어서 기화된 가스는 고압헤더(84)와 압력조정기(85)와 준저압헤더(87)를 통해 가스버너(40)로 공급되며 메인 콘트롤밸브(86)로써 차폐된다.The vaporized gas is then supplied to the gas burner 40 through the high pressure header 84, the pressure regulator 85 and the quasi-low pressure header 87 and shielded by the main control valve 86.

그리고 상기한 압력조정기(85)에서의 조정상태는 가스압력이 약 4,000mmH20이고, 시간당 1,000kg 이다.And the adjustment state in the pressure regulator 85 is a gas pressure of about 4,000mmH 2 0, 1,000kg per hour.

한편, 상기한 가스공급라인에서 일부는 파이롯트 버너 어셈브리(90)를 통해 파이롯트 버너(91)를 운영하여야 하는 바, 이 때의 가스는 보조 콘트롤밸브(92)로써 차폐되며, 상기한 메인 콘트롤밸브(86)와 보조 콘트롤밸브(92)는 콘트롤모터(93)로써 자동으로 개폐되므로 인한 안전성이 보장된다.Meanwhile, some of the gas supply lines must operate the pilot burner 91 through the pilot burner assembly 90. At this time, the gas is shielded by the auxiliary control valve 92, and the main control valve described above. The 86 and the auxiliary control valve 92 are automatically opened and closed by the control motor 93, thereby ensuring safety.

상기와 같이 구성된 본 발명은 아스콘제조장치를 가동하되, 골재함(31)으로부터 드라이어(50)의 속으로 골재가 이송되어 채워지면 가스버너(40)를 사용하여 가열하게 된다.The present invention configured as described above operates the ascon manufacturing apparatus, the aggregate is transported and filled into the dryer 50 from the aggregate box 31 is heated by using the gas burner 40.

가스 저장탱크(80)의 액체밸브(81)를 열어 가스 저장탱크(80)로부터 가스가 공급되면, 기화기(70)에서 기화시킨 상태로 가스버너(40)까지 공급되며, 가스버너(40)에서는 파이롯트 버너 어셈브리(90)의 파이롯트 버너(91)와 함께 점화되어 골재를 가열할 수 있게 되는 것이다.When the gas is supplied from the gas storage tank 80 by opening the liquid valve 81 of the gas storage tank 80, the gas storage tank 80 is supplied to the gas burner 40 in a vaporized state in the vaporizer 70, and in the gas burner 40, The pilot burner 91 is ignited with the pilot burner 91 of the assembly 90 to heat the aggregate.

위에서 상세히 설명한 바와 같은 본 발명은 종래와 같은 중유 버너를 사용하는 것이 아니라 LNG(또는 LPG)를 연료로 사용하는 새로운 가스버너를 채택하여 구성하였기 때문에 중유 연소시 발생하는 아황산가스 등의 유해가스 및 미세먼지가 발생하지 않기 때문에 환경오염을 예방할 수 있음은 물론 소음이 적게 발생하는 장점이 있다.As described in detail above, the present invention is configured by adopting a new gas burner using LNG (or LPG) as a fuel, rather than using a heavy oil burner as in the prior art, and thus, harmful gases such as sulfurous acid gas and the like generated during heavy oil combustion. Since dust is not generated, environmental pollution can be prevented and noise is generated.

Claims (1)

골재함으로부터 컨베이어 이송장치를 사용하여 아스콘용 골재를 공급받는 아스콘 제조장치의 드라이어(50)에 있어서,In the dryer 50 of the asphalt concrete manufacturing apparatus that receives the aggregate for asphalt concrete using a conveyor conveying device from the aggregate, 상기 드라이어(50)의 일측편에서 그 내부로 열을 발산하여 가열할 수 있는 가스버너(40)를 구비한 후, 상기 가스버너(40)로 가스를 공급하되, 저장탱크(80)로부터 액체밸브(81)들과 긴급차단밸브(83)와, 기화기(70)와, 압력조정기(85)와, 주점화 노즐로 안정된 압력과 공급량을 조절할 수 있는 가스 메인 콘트롤밸브(86)를 포함하는 가스공급수단(100)을 통해 상기 드라이어를 가열 작동시킬 수 있도록 하여서 된 것을 특징으로 하는 아스콘 제조용 골재 가열장치.After having a gas burner 40 capable of dissipating heat from one side of the dryer 50 to heat the inside of the dryer 50, the gas is supplied to the gas burner 40, but the liquid valve is stored from the storage tank 80. Gas supply including the 81 and the emergency shut-off valve 83, the carburetor 70, the pressure regulator 85, and the gas main control valve 86 to control the stable pressure and supply amount with the main ignition nozzle Aggregate heating apparatus for producing an asphalt concrete, characterized in that to enable the dryer to operate by heating the means (100).
KR1020020052473A 2002-09-02 2002-09-02 Aggregate Heating Structure for Asphalt-Concrete KR20040021038A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256451A (en) * 1979-10-26 1981-03-17 Johnson Jr Allen S Upright kiln and attendant method for heating an aggregate material
KR850000306A (en) * 1983-06-17 1985-02-26 로늘드 제이 클라아크 Casting stamper and manufacturing method thereof
JP2001159104A (en) * 1999-12-01 2001-06-12 Nippon Road Co Ltd:The Heating equipment for paving aggregate
KR20010094061A (en) * 2000-04-03 2001-10-31 구자철 Aggregate heating device that does not damage the viscosity of AP3 with steam conversion heating type fully burned dryer burner.
KR20020006072A (en) * 2000-07-11 2002-01-19 김정 The heating system that hotted heating ASCON's aggregate to make use of high freguency's conductance current
KR200273797Y1 (en) * 2002-01-22 2002-04-27 김용국 The aggregate heating apparatus for asphalt-concrete

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256451A (en) * 1979-10-26 1981-03-17 Johnson Jr Allen S Upright kiln and attendant method for heating an aggregate material
KR850000306A (en) * 1983-06-17 1985-02-26 로늘드 제이 클라아크 Casting stamper and manufacturing method thereof
JP2001159104A (en) * 1999-12-01 2001-06-12 Nippon Road Co Ltd:The Heating equipment for paving aggregate
KR20010094061A (en) * 2000-04-03 2001-10-31 구자철 Aggregate heating device that does not damage the viscosity of AP3 with steam conversion heating type fully burned dryer burner.
KR20020006072A (en) * 2000-07-11 2002-01-19 김정 The heating system that hotted heating ASCON's aggregate to make use of high freguency's conductance current
KR200273797Y1 (en) * 2002-01-22 2002-04-27 김용국 The aggregate heating apparatus for asphalt-concrete

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