WO2013029269A1 - Dispositif de chauffage de l'asphalte et équipement remuant l'asphalte - Google Patents

Dispositif de chauffage de l'asphalte et équipement remuant l'asphalte Download PDF

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Publication number
WO2013029269A1
WO2013029269A1 PCT/CN2011/079264 CN2011079264W WO2013029269A1 WO 2013029269 A1 WO2013029269 A1 WO 2013029269A1 CN 2011079264 W CN2011079264 W CN 2011079264W WO 2013029269 A1 WO2013029269 A1 WO 2013029269A1
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WO
WIPO (PCT)
Prior art keywords
asphalt
tank
heating
heater
return line
Prior art date
Application number
PCT/CN2011/079264
Other languages
English (en)
Chinese (zh)
Inventor
尹友中
彭琼梅
江艳平
朱春灿
王俊杰
Original Assignee
长沙中联重工科技发展股份有限公司
湖南中联重科专用车有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 长沙中联重工科技发展股份有限公司, 湖南中联重科专用车有限责任公司 filed Critical 长沙中联重工科技发展股份有限公司
Priority to PCT/CN2011/079264 priority Critical patent/WO2013029269A1/fr
Publication of WO2013029269A1 publication Critical patent/WO2013029269A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C3/00—Working-up pitch, asphalt, bitumen
    • C10C3/10—Melting
    • C10C3/12—Devices therefor

Definitions

  • the present invention relates to the field of construction machinery, and in particular to an asphalt heating device, and to an asphalt mixing device having the asphalt heating device. Background technique
  • Asphalt mixing equipment also known as asphalt mixing equipment or asphalt mixing station, is the key equipment for asphalt pavement construction. It is mainly used to heat and measure sand and stone materials, asphalt and other materials into asphalt mixture. Therefore, asphalt mixing equipment is usually equipped with an asphalt heating device that heats the asphalt.
  • the existing asphalt heating device generally comprises an asphalt tank and a heating tank, the heating tank has a heater, the asphalt tank has an asphalt outlet, the heating tank has an asphalt inlet and an asphalt outlet, and the asphalt outlet of the asphalt tank is
  • the asphalt inlet of the heating tank is connected through the oil supply line.
  • the required amount of bitumen in the bitumen tank is first drawn into the heating tank through the oil supply line, and then the internal asphalt is heated by the heating tank.
  • the asphalt heated to a predetermined temperature is supplied to the asphalt metering cylinder, and after metering, it is stirred and mixed with other aggregates such as sand and gravel.
  • the existing asphalt heating device adopts static heating, so the heating speed is slow and the heating is not uniform, and the asphalt near the heating pipe of the heater is heated for a long time at a high temperature, and the asphalt aging phenomenon is prone to occur. Moreover, if the heating time is long, the asphalt near the heating pipe will be carbonized and accumulated on the pipe wall, and the heat exchange efficiency of the heater is lowered, resulting in an increase in energy consumption. Summary of the invention
  • An object of the present invention is to provide an asphalt heating device capable of rapidly and uniformly heating asphalt, which is also less susceptible to aging of the asphalt near the heating pipe of the heater, and which consumes less energy.
  • the present invention provides an asphalt heating device comprising an asphalt tank and a heating tank, the heating tank having a first heater, the asphalt tank having an asphalt outlet, the heating tank having an asphalt inlet And an asphalt outlet, the asphalt outlet of the asphalt tank is connected to the asphalt inlet of the heating tank through an oil supply pipeline, wherein the asphalt heating device further comprises an asphalt pump and a first return pipeline, the heating tank further comprising The asphalt return port communicates the asphalt outlet of the heating tank with the asphalt return port, and the asphalt pump is connected in series on the first return line.
  • the asphalt tank further has a bitumen return port
  • the bitumen heating device further includes a second return line, one end of the second return line is in communication with the asphalt return port of the asphalt tank, and the second return pipe The other end of the road is in communication with the first return line.
  • the other end of the second return line communicates with the first return line through a first three-way valve.
  • the asphalt heating device comprises a plurality of the asphalt tanks connected in parallel with each other.
  • the asphalt heating device comprises a first asphalt tank and a second asphalt tank connected in parallel with each other, the asphalt heating device further comprising a first pipeline, a second pipeline, a third pipeline and a fourth pipeline.
  • the first pipeline connects the asphalt outlet of the first asphalt tank to the oil supply pipeline
  • the second pipeline connects the asphalt return port of the first asphalt tank to the second return pipeline
  • the third pipeline connects the asphalt outlet of the second asphalt tank with the oil supply pipeline
  • the fourth pipeline connects the asphalt return port of the second asphalt tank with the second return pipe The road is connected.
  • the first pipeline is in communication with the oil supply pipeline through a second three-way valve
  • the second pipeline is in communication with the second return pipeline through a third three-way valve.
  • a second heater is disposed in the asphalt tank.
  • the first heater and the second heater are coil heaters, and the coil heater includes a coil in which a heating medium flows.
  • the asphalt heating device further includes a controller, a first temperature sensor and a second temperature sensor, wherein the first temperature sensor is configured to measure a temperature of the asphalt in the heating tank, The second temperature sensor is configured to measure the temperature of the asphalt in the asphalt tank, and the controller separately controls the first according to a preset asphalt temperature and a temperature measured by the first temperature sensor and the second temperature sensor Heater and second heater.
  • the controller controls the first heater and the second heater by controlling a flow rate of a heating medium within the coil.
  • the asphalt heating device further includes an asphalt metering cylinder and an oil discharge pipeline, one end of the oil discharge pipeline is in communication with the asphalt metering cylinder, and the other end of the oil discharge pipeline is passed through the fourth three-way valve The first return line is connected.
  • the present invention also provides an asphalt mixing apparatus comprising the asphalt heating apparatus as described above.
  • the operation of the asphalt pump causes the asphalt in the heating tank to continuously circulate through the first return pipeline, thereby realizing dynamic heating of the asphalt, thereby enabling rapid and uniform heating.
  • the pitch is heated, and the pitch near the heating pipe of the first heater can flow frequently without local overheating for a long time, so that it is not easily aged.
  • the asphalt is not easily accumulated on the pipe wall, thereby improving the heat exchange efficiency of the heater and reducing the energy consumption.
  • Fig. 1 is a schematic view showing the principle of an asphalt heating apparatus according to an embodiment of the present invention
  • Fig. 2 is a schematic view showing the principle of an asphalt heating apparatus according to another embodiment of the present invention. Description of the reference numerals 1 asphalt tank; 2 heating tank;
  • an embodiment of the present invention provides an asphalt heating device including an asphalt tank 1 and a heating tank 2 having a first heater 25 therein, the asphalt
  • the tank 1 has an asphalt outlet 11 having an asphalt inlet 21 and an asphalt outlet 22, the asphalt outlet 11 of the asphalt tank 1 and the asphalt inlet 21 of the heating tank 2 passing
  • the oil supply line 31 is in communication, wherein the asphalt heating device further comprises an asphalt pump 4 and a first return line 32, the heating tank 2 further comprising an asphalt return port 23, wherein the first return line 32 will
  • the asphalt outlet 22 of the heating tank is in communication with the asphalt return port 23, which is connected in series to the first return line 32.
  • the operation of the asphalt pump 4 causes the asphalt in the heating tank 2 to continuously circulate through the first return line 32, thereby realizing dynamic heating of the asphalt, thus
  • the pitch can be heated quickly and uniformly, and the pitch near the heating pipe of the first heater 25 can flow frequently without local overheating for a long time, and thus is not easily deteriorated.
  • the asphalt is not easily accumulated on the pipe wall, thereby improving the heat exchange efficiency of the heater and reducing the energy consumption.
  • the asphalt tank 1 further has an asphalt return port 12, and the asphalt heating device further includes a second return line 33, one end of the second return line 33 and the asphalt tank 1
  • the asphalt return port 12 is in communication, and the other end of the second return line 33 is in communication with the first return line 32.
  • the heating tank 2 and the asphalt in the asphalt tank 1 can be circulated together, thereby simultaneously heating the asphalt in the heating tank 2 and the asphalt tank 1 by heating the tank 2 to satisfy the heating of a large amount of asphalt. Requirements.
  • the other end of the second return line 33 communicates with the first return line 32 through the first three-way valve 51.
  • the first three-way valve 51 it is possible to select whether to heat only the pitch in the heating tank 2 by controlling the first three-way valve 51, or to simultaneously heat the pitch in the heating tank 2 and the asphalt tank 1 by heating the tank 2.
  • the asphalt heating device when the ab passage of the first three-way valve 51 is in communication, the asphalt heating device only heats the asphalt in the heating tank 2, and when the ac passage of the first three-way valve 51 is in communication, the asphalt heating device simultaneously The heating tank 2 and the asphalt in the asphalt tank 1 are heated, and when the abc of the first three-way valve 51 is fully connected, the circulation speed of the asphalt can be further accelerated, so that the asphalt in the heating tank 2 and the asphalt tank 1 can be more quickly Heat up.
  • the number of the asphalt tanks 1 can be set as needed, for example, in the embodiment shown in Fig. 1, only one asphalt tank 1 is included. When there are a plurality of asphalt tanks 1, the plurality of asphalt tanks 1 can In parallel with each other.
  • the asphalt heating apparatus of the embodiment shown in Fig. 2 includes two asphalt tanks, and more specifically, the asphalt heating apparatus includes a first asphalt tank 1A and a second asphalt tank IB which are connected in parallel with each other, and the asphalt heating apparatus further includes a first pipe 1A1, a second pipe 1A2, a third pipe 1B1, and a fourth pipe 1B2, the first pipe 1A1 is the asphalt outlet 11A of the first asphalt tank 1A and the oil supply pipe 31, the second line 1A2 communicates the asphalt return port 12A of the first asphalt tank 1A with the second return line 33, and the third line 1B1 connects the second asphalt tank 1B.
  • the asphalt outlet 11B communicates with the oil supply line 31, and the fourth line 1B2 communicates the asphalt return port 12B of the second asphalt tank 1B with the second return line 33.
  • the first pipeline 1A1 and the oil supply pipeline 31 are connected by a second three-way valve 52, and the second pipeline 1A2 and the second return pipeline 33 are passed.
  • the third three-way valve 53 is in communication. Therefore, when it is necessary to simultaneously heat the pitch in the heating tank 2 and the asphalt tank 1, the asphalt in the first asphalt tank or the second asphalt tank can be selectively selected by the second three-way valve 52 and the third three-way valve 53. heating.
  • the asphalt heating device simultaneously heats The tank 2 and the asphalt in the first asphalt tank 1A are heated; when the df passage of the second three-way valve 52 is in communication, and the ch passage of the third three-way valve 53 is in communication, the asphalt heating device simultaneously heats the tank 2 and the The asphalt in the asphalt tank 1B is heated; when the def channel of the second three-way valve 52 is fully connected, and the cgh channel of the third three-way valve 53 is fully connected, the asphalt heating device simultaneously heats the tank 2, the first asphalt The pitch in the tank 1A and the second asphalt tank 1B is heated.
  • the asphalt heating device can be provided with more asphalt tanks as needed.
  • the connection relationship of more asphalt tanks and the setting of the three-way valve are similar to the above-mentioned technical solutions including two asphalt tanks, and will not be described herein.
  • the operation of the asphalt pump 4 causes the asphalt to continuously circulate and flow to achieve dynamic heating, and therefore the asphalt in the asphalt tank 1 usually needs to be in a flowable state.
  • This is achieved by providing the asphalt tank 1 with a flowable asphalt, but preferably, as shown in FIGS. 1 and 2, the asphalt tank 1 is provided with a second heater 65.
  • the asphalt tank 1 is heated by the second heater 65, so that the solid asphalt in the asphalt tank 1 is preheated to a flowable state (for example, heated to 60-80 ° C, the specific temperature depends on the viscosity index of the asphalt), and then reused.
  • the asphalt pump 4 circulates the bitumen and continues to be heated by the heating tank 2 to an operating temperature (e.g., 150-180 ° C).
  • the first heater 25 and the second heater 65 may be various suitable heaters, such as an electric heater.
  • the first heater 25 And the second heater 65 is a coil heater including a coil in which a heating medium (e.g., heat transfer oil, high temperature gas, etc.) flows.
  • the heating medium flows in from the oil inlet of the coil, flows out from the oil outlet of the coil, and exchanges heat with the asphalt outside the coil during the flow in the coil, thereby heating the asphalt to a desired temperature.
  • a heating medium e.g., heat transfer oil, high temperature gas, etc.
  • a heating medium source for example, a heat transfer oil heating furnace, not shown
  • a heating medium supply line 91 and a heating medium return line 92 is connected to a heating medium supply line 91 and a heating medium return line 92, and a coil of the first heater 25.
  • the oil inlet of the coil of the second heater 65 is in parallel with the heating medium supply line 91 through the respective oil inlet lines, and the coil of the first heater 25 and the coil of the second heater 65 are discharged.
  • the ports communicate with the heating medium return line 92 in parallel through respective oil discharge lines.
  • a flow control valve may be respectively disposed on the oil inlet pipe of the coil of the first heater 25 and the coil of the second heater 65, so that the flow rate of the heating medium can be controlled to separately control the first heater 25 and the second The heating rate of the heater 65.
  • the first heater 25 and the second heater 65 may be manually controlled.
  • the asphalt heating device further includes a controller, a first temperature sensor 71, and a second temperature sensor 72
  • the first temperature sensor 71 is for measuring the temperature of the asphalt in the heating tank 2
  • the second temperature sensor 72 is for measuring the temperature of the asphalt in the asphalt tank 1
  • the controller is based on a preset asphalt
  • the temperature and the temperatures measured by the first temperature sensor 71 and the second temperature sensor 72 control the first heater 25 and the second heater 65, respectively.
  • the first heater 25 or the second heater 65 is slowed down, when the first temperature sensor 71 or the second temperature is transmitted.
  • the first heater 25 or the second heater 65 is stopped from heating.
  • the first heater 25 and the second heating can be separately controlled by controlling the flow rate of the heating medium in the coil of the first heater 25 and the coil of the second heater 65 (for example, by a flow control valve), respectively.
  • the heating rate of the device 65 can take various suitable forms, such as a PLC (Programmable Controller).
  • the asphalt heating device may further include an asphalt metering cylinder 8 and an oil discharge pipeline 34.
  • One end of the oil discharge pipeline 34 communicates with the asphalt metering cylinder 8, and the oil discharge pipeline 34 The other end is in communication with the first return line 32 through a fourth three-way valve 54. Therefore, when the heating tank 2 is required to heat the asphalt, the ai passage of the fourth three-way valve 54 is communicated; when it is required to lead the asphalt which has reached the predetermined temperature, the ij passage of the fourth three-way valve 54 is communicated, thereby supplying the asphalt
  • the asphalt metering cylinder 8 is metered and mixed with other aggregates such as sand and gravel.
  • the first three-way valve 51, the second three-way valve 52, and the third three-way valve 53 described above may be manually controlled or automatically controlled by a controller.
  • Figures 1 and 2 adaptively indicate the flow direction of the fluid (including the asphalt and the heating medium).
  • the present invention also provides an asphalt mixing apparatus comprising the asphalt heating apparatus as described above.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Road Paving Machines (AREA)

Abstract

La présente invention se rapporte à un dispositif de chauffage de l'asphalte et à un équipement remuant l'asphalte qui comprend le dispositif de chauffage. Le dispositif de chauffage de l'asphalte comprend un réservoir d'asphalte (1) et un réservoir chauffant (2). Un premier dispositif de chauffage (25) est agencé à l'intérieur du réservoir chauffant, le réservoir d'asphalte (1) comprend un orifice de sortie d'asphalte (11), le réservoir chauffant (2) comprend un orifice d'entrée d'asphalte (21) et un orifice de sortie d'asphalte (22), et l'orifice de sortie d'asphalte (11) du réservoir d'asphalte (1) communique avec l'orifice d'entrée d'asphalte (21) du réservoir chauffant (2) au moyen d'une conduite d'alimentation en huile (31). Le dispositif de chauffage de l'asphalte comprend en outre une pompe d'asphalte (4) et une première conduite de retour (32). Le réservoir chauffant (2) comprend en outre un orifice de retour d'asphalte (23), la première conduite de retour (32) permet à l'orifice de sortie de l'asphalte (22) du réservoir chauffant de communiquer avec l'orifice de retour de l'asphalte (23), et la pompe d'asphalte (4) est raccordée en série à la première conduite de retour (32). Le dispositif de chauffage de l'asphalte peut chauffer l'asphalte rapidement et de manière égale, l'asphalte situé près du tuyau de chauffage du dispositif de chauffage n'est pas facile à vieillir, et la consommation d'énergie est faible.
PCT/CN2011/079264 2011-09-01 2011-09-01 Dispositif de chauffage de l'asphalte et équipement remuant l'asphalte WO2013029269A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/CN2011/079264 WO2013029269A1 (fr) 2011-09-01 2011-09-01 Dispositif de chauffage de l'asphalte et équipement remuant l'asphalte

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Application Number Priority Date Filing Date Title
PCT/CN2011/079264 WO2013029269A1 (fr) 2011-09-01 2011-09-01 Dispositif de chauffage de l'asphalte et équipement remuant l'asphalte

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105908598A (zh) * 2016-06-24 2016-08-31 湖南新永利交通科工贸有限公司 一体式乳化沥青设备
CN106245491A (zh) * 2016-08-29 2016-12-21 山东中宏路桥建设有限公司 沥青加热装置及利用该装置的沥青加热方法
CN106284027A (zh) * 2016-08-31 2017-01-04 天津领先正华能源科技发展有限公司 一种用于改性沥青快速加热的移动设备
CN106480801A (zh) * 2016-08-31 2017-03-08 天津领先正华能源科技发展有限公司 一种用于制备改性沥青的模块式移动设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU392200A1 (ru) * 1972-06-08 1973-07-27 Управление механизации дорожного строительства треста Юждорстрой Установка для разогрева органических вяжущих материалов
CN201343689Y (zh) * 2009-01-21 2009-11-11 何忠良 一种沥青拌和机
CN201634629U (zh) * 2010-02-23 2010-11-17 邹炎 双罐式焦油沥青加热系统
CN101974880A (zh) * 2010-11-15 2011-02-16 郴州市三联路面机械有限责任公司 一种沥青洒布车用沥青罐加热装置
CN201933386U (zh) * 2010-10-25 2011-08-17 西安达刚路面机械股份有限公司 一种新型快速沥青升温装置
CN102359049A (zh) * 2011-09-01 2012-02-22 中联重科股份有限公司 沥青加热装置以及沥青搅拌设备

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU392200A1 (ru) * 1972-06-08 1973-07-27 Управление механизации дорожного строительства треста Юждорстрой Установка для разогрева органических вяжущих материалов
CN201343689Y (zh) * 2009-01-21 2009-11-11 何忠良 一种沥青拌和机
CN201634629U (zh) * 2010-02-23 2010-11-17 邹炎 双罐式焦油沥青加热系统
CN201933386U (zh) * 2010-10-25 2011-08-17 西安达刚路面机械股份有限公司 一种新型快速沥青升温装置
CN101974880A (zh) * 2010-11-15 2011-02-16 郴州市三联路面机械有限责任公司 一种沥青洒布车用沥青罐加热装置
CN102359049A (zh) * 2011-09-01 2012-02-22 中联重科股份有限公司 沥青加热装置以及沥青搅拌设备

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105908598A (zh) * 2016-06-24 2016-08-31 湖南新永利交通科工贸有限公司 一体式乳化沥青设备
CN105908598B (zh) * 2016-06-24 2018-01-23 湖南新永利交通科工贸有限公司 一体式乳化沥青设备
CN106245491A (zh) * 2016-08-29 2016-12-21 山东中宏路桥建设有限公司 沥青加热装置及利用该装置的沥青加热方法
CN106284027A (zh) * 2016-08-31 2017-01-04 天津领先正华能源科技发展有限公司 一种用于改性沥青快速加热的移动设备
CN106480801A (zh) * 2016-08-31 2017-03-08 天津领先正华能源科技发展有限公司 一种用于制备改性沥青的模块式移动设备

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