WO2013044458A1 - 物料搅拌加热装置和沥青搅拌设备 - Google Patents

物料搅拌加热装置和沥青搅拌设备 Download PDF

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Publication number
WO2013044458A1
WO2013044458A1 PCT/CN2011/080263 CN2011080263W WO2013044458A1 WO 2013044458 A1 WO2013044458 A1 WO 2013044458A1 CN 2011080263 W CN2011080263 W CN 2011080263W WO 2013044458 A1 WO2013044458 A1 WO 2013044458A1
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WO
WIPO (PCT)
Prior art keywords
stirring
agitating
heating
axial passage
shaft
Prior art date
Application number
PCT/CN2011/080263
Other languages
English (en)
French (fr)
Inventor
尹友中
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
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Filing date
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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/CN2011/080263 priority Critical patent/WO2013044458A1/zh
Publication of WO2013044458A1 publication Critical patent/WO2013044458A1/zh

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01CCONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02Machines, 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
    • E01C19/10Apparatus 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
    • E01C19/1013Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/104Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/07Stirrers characterised by their mounting on the shaft
    • B01F27/072Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0723Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis oblique with respect to the rotating axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05Stirrers
    • B01F27/07Stirrers characterised by their mounting on the shaft
    • B01F27/072Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0726Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis having stirring elements connected to the stirrer shaft each by a single radial rod, other than open frameworks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/701Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • B01F27/702Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with intermeshing paddles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90Heating or cooling systems
    • B01F35/95Heating or cooling systems using heated or cooled stirrers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90Heating or cooling systems
    • B01F2035/99Heating

Definitions

  • the present invention relates to the field of material agitation heating, and in particular to a material agitation heating device and an asphalt mixing device. Background technique
  • asphalt mixing equipment also known as asphalt mixing equipment or asphalt mixing station
  • asphalt mixing equipment is the key equipment for asphalt pavement construction. It is mainly used to measure and stir sand, stone, asphalt and mineral powder into asphalt mixture.
  • sand and asphalt should be heated and dried to a temperature of about 150 °C, but the ore powder is at room temperature.
  • the mineral powder is pre-stirred to increase the temperature of the ore powder. It is then mixed with the asphalt to form a qualified asphalt mixture.
  • the construction temperature of the mixture and the proportion of mineral powder added are getting higher and higher.
  • the required finished asphalt mixture temperature is about 250 ° C, and the proportion of the ore powder is over 20%.
  • the aggregate temperature needs to be heated to above 300 °C, which brings many problems to the reliable operation of the equipment. Even so, the uniformity of the temperature and temperature of the mineral powder is difficult to meet the requirements after a short premixing, and the production capacity is limited.
  • the method of stirring and heating is generally adopted, that is, while the material is stirred by the stirring mechanism, a heating source is disposed outside the stirring mechanism for heating, but the thermal efficiency of the method is not high, the heating uniformity is not good, and the heating of the device is performed.
  • the ability is limited and the cost of heating is greatly increased. Therefore, it is of positive significance to provide a material heating device that is uniform and efficient in heating.
  • One object of the present invention is to provide a material agitation heating device which is rational in design, simple in structure, uniform in heating, and high in heating efficiency.
  • Another object of the present invention is to provide an asphalt mixing apparatus comprising the material agitation heating apparatus provided by the present invention.
  • the present invention provides a material stirring and heating device, which comprises a stirring pot, a stirring shaft installed in the stirring pot, a driving device and a heating source, wherein the stirring shaft has a stirring blade, And driven by the driving device, the stirring shaft has an axial passage therein, and the axial passage communicates with the heating source.
  • the agitating shaft comprises a first inner tube and a first outer tube
  • the first inner tube is mounted in the first outer tube through a positioning frame
  • the axial passage comprises a first axial passage and a first a second axial passage, wherein the first axial passage is located in the first inner tube, the second axial passage is located between the first inner tube and the first outer tube, and The first axial passage and the second axial passage are in communication.
  • the heating source is in communication with the second axial passage, and the heating carrier generated by the heating source first enters the agitating shaft through the second axial passage, and then is discharged through the first axial passage .
  • one end of the agitating shaft is closed and connected to the driving device, and the other end is in communication with the heating source through a rotary joint.
  • the rotary joint includes a casing, a second inner pipe, a second outer pipe, an inlet and an outlet, wherein the second inner pipe is located inside the second outer pipe, and the second inner pipe And the second outer tube is spaced apart from each other and rotatably mounted in the housing, the outlet is in communication with the second inner tube, and the inlet is in communication with the second outer tube.
  • a sealing member is respectively disposed between the second inner tube and the second outer tube and the housing.
  • the second inner tube is in communication with the first axial passage of the agitating shaft, the second The outer tube communicates with the second axial passage of the agitator shaft.
  • the second inner tube and the second outer tube are connected to the stirring shaft through a flange.
  • a jacket is disposed in a sidewall of the stirring pot, and the jacket has a heat inlet at one end and a heat outlet at the other end.
  • the heat inlet is in communication with the heating source, and the heat outlet is in communication with the inlet of the rotary joint.
  • the upper end of the stirring pot has a top cover, and the top cover has an insulating layer.
  • two agitating shafts parallel to each other are installed at both ends of the agitating pot, and the agitating blades of the two agitating shafts are spaced apart.
  • both ends of the stirring pot are provided with an upper side feeding port and a lower side discharging port, wherein the material is moved from the upper side feeding port to the lower side discharging port through the stirring paddle.
  • the agitating shaft includes a plurality of the agitating paddles, and the plurality of agitating paddles are propellers, and the spiral directions are the same.
  • the agitating paddle includes a stirring blade and fins perpendicular to the agitating blade and disposed on one side of the agitating blade.
  • the driving device comprises two motors, two of which are respectively connected to the two motors, and the two motors have motor synchronizers.
  • an asphalt mixing apparatus comprising the material stirring heating apparatus provided by the present invention.
  • the stirring shaft of the material stirring and heating device provided by the invention has an axial passage communicating with the heating source, the material can be uniformly heated while being stirred, the heat loss is small, and the heating efficiency is high.
  • the design is reasonable, the structure is simple, and the utility of the asphalt mixing device provided by the invention is effectively improved.
  • FIG. 1 is a schematic front view showing the structure of a material stirring and heating device provided by the present invention
  • FIG. 2 is a side view showing the structure of the material stirring and heating device provided by the present invention.
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 4 is an enlarged view of a portion B of Figure 1;
  • Figure 5 is a schematic cross-sectional view of a rotary joint provided by the present invention. detailed description
  • orientation words used such as "upper, lower, and both ends" are generally defined in the case where the material agitating and heating device provided by the present invention is normally used, and specifically, The direction shown in Figure 1.
  • the present invention provides a material stirring and heating device, which comprises a stirring pot 1, a stirring shaft 2 installed in the stirring pot 1, and a driving device. 3 and a heating source, wherein the agitating shaft 2 has a stirring paddle 21 and is driven by a driving device 3, and the agitating shaft 2 has an axial passage 22 therein, which is in communication with a heating source.
  • an axial passage communicating with the heating source is skillfully provided in the stirring shaft 2, so that the stirring shaft can uniformly heat the material while stirring the material, and the heat loss is small, and the heating efficiency is low. high.
  • the material stirring and heating device provided by the invention has the advantages of simple structure and strong practicability. It should be noted that there are various embodiments of the present invention, such as the arrangement of the axial passages, etc. For the convenience of description, the present invention will only introduce the preferred embodiments thereof, and the preferred embodiments are only for explaining the present invention, and It is not intended to limit the invention.
  • the heating source mentioned in the present invention can be any heating source having a heating carrier known in the art, such as a heating furnace, a combustion furnace, etc., and the heating carrier can be a heat transfer oil or a high temperature flue gas as long as the invention is satisfied.
  • the purpose of the present invention is not limited thereto.
  • the agitating shaft 2 is comprised of a first inner tube 23 and a first outer tube 24, the first inner tube 23 being mounted in the first outer tube 24 by a retainer 25, the axial passage 22 comprising An axial passage 221 and a second axial passage 222, wherein the first axial passage 211 is located in the first inner tube 23, and the second axial passage 222 is located between the first inner tube 23 and the first outer tube 24. And the first axial passage 221 and the second axial passage 222 are in communication.
  • the heating carrier can form a heating circuit in the agitating shaft 2, so that the circulating flow of the heating carrier can be realized, and the secondary continuous heating of the material can be realized, which is beneficial to the heat.
  • the retention in the agitator shaft 2 makes efficient use of thermal energy.
  • the agitating shaft 2 can also be a single-channel hollow tube, wherein the heating carrier can be discharged from one end into the agitating shaft 2 and discharged from the other end, and the object of the present invention can be achieved, and other objects which can achieve the object of the present invention can be achieved. Form, do not repeat too much here.
  • the positioning frame 25 involved in the present invention is of a non-closed design to provide a flow path for the heating carrier, for example, may be fixed to the outer surface of the first inner tube 23 and the inner surface of the first outer tube 24, respectively.
  • a plurality of reinforcing ribs are formed, and such fixed positioning techniques are well known to those skilled in the art, and will not be described in detail herein.
  • the heating source is in communication with the second axial passage 222 located on the outside, and the heating carrier generated by the heating source first enters the agitator shaft 2 through the second axial passage 222 and then passes through the first shaft. It is discharged to the channel 211. Therefore, heat can be more efficiently transmitted to the outer surface of the agitating shaft 2 and the agitating paddle 21 to more efficiently provide heating efficiency.
  • one end of the agitating shaft 2 closes and connects the driving device 3 to obtain rotational power, and the other end communicates with the heating source through the rotary joint 5.
  • the first axial pass Lane 221 and second axial passage 222 are in communication at one end of the closure. Therefore, the heating carrier generated by the heating source can first enter the axial passage of the agitating shaft 2 through the other end of the agitating shaft 2, then enter the other axial passage at the closed end, and then return to the heating source for re-return Heat to achieve cyclic heating.
  • the rotary joint 5 can more conveniently and effectively communicate the first axial passage 221 and the second axial passage 222 of the agitating shaft 2 with the heating source, respectively.
  • the agitating shaft 2 and the heating source may be directly communicated without passing through the rotary joint 5.
  • the rotary joint 5 includes a housing 56, a second inner tube 51, a second outer tube 52, an inlet 53 and an outlet 54, wherein the second inner tube 51 is located in the second outer tube
  • the inside of the 52, and the second inner tube 51 and the second outer tube 52 are spaced apart, and are respectively rotatably mounted in the housing 56, the outlet 54 is in communication with the second inner tube 51, and the inlet 53 is in communication with the second outer tube 52.
  • a sealing member 57 is provided between the second inner tube 51 and the second outer tube 52 and the housing 56, respectively.
  • the second inner tube and the second outer tube are independent of each other, and the heating carriers of the second inner tube 51 and the second outer tube 52 do not become mixed.
  • the second inner tube 51 communicates with the first axial passage 221 of the agitating shaft 2
  • the second outer tube 52 communicates with the second axial passage 222 of the agitating shaft 2. That is, the heating carrier first enters the second axial passage 222 of the agitating shaft 2 through the inlet passage 53 and the flow passage formed by the interval between the second outer tube 52 and the second inner tube 51, and transfers heat to the outside of the agitating shaft 2.
  • the surface and the stirring paddle 21 are used to uniformly heat the material while stirring the material, and then the heating carrier is returned to the heating source through the first axial passage 221, the second inner tube 51 and the outlet 54 to be reheated. Circulating heating of the material.
  • the second inner tube 51 and the second outer tube 52 of the rotary joint 5 are connected to the agitating shaft 2 via a flange 55.
  • the first inner tube 23 and the first outer tube 24 of the agitating shaft 2 need to be respectively aligned with the second inner tube 51 and the second outer tube 52 of the rotary joint 5, and preferably have a plug between the inner tubes,
  • the first inner tube 23 can be inserted into the second inner tube 52 to avoid the outflow of the heating carrier.
  • first inner tube 23 and the second inner tube 52 may preferably be integrated, and/or the first outer tube 24 and the second outer tube 52 may be The unitary structure directly rotatably mounts the first inner tube 23 and/or the first outer tube 24 inside the rotary joint 5.
  • the respective inner and outer tubes may be rotatably mounted in the housing 56 of the rotary joint 5 by bearings, and those skilled in the art can improve and replace the above-described schemes, but such improvements and replacements It should also fall within the scope of protection of the present invention.
  • the joint at this time is not necessarily designed to have the second inner tube and the second outer tube.
  • the rotary joint only includes a single passage with the inlet and outlet connected to the inlet and outlet, so that the connection of the single-channel hollow tubular agitator shaft 2 and the heating source can be quickly completed.
  • a jacket 31 is disposed in the side wall of the agitating pot 3, and the jacket 31 has a heat inlet 311 at one end and a heat outlet 312 at the other end. That is, the flow path of the heating carrier is provided in the side wall of the stirring pot so that the stirring pot itself has a heating effect, so that the heating effect and the heating efficiency of the present invention can be made higher.
  • the inner side wall of the jacket 31 is preferably made of a material having good thermal conductivity to facilitate heat transfer into the stirring pot 3, and the outer side wall of the jacket 31 is preferably insulated. Materials are made to prevent heat loss.
  • the present invention is not limited to its specific structure and specifications as long as it satisfies the object of the invention.
  • the heat inlet 311 is in communication with the heating source
  • the heat outlet 312 is in communication with the inlet 53 of the rotary joint 5. That is, the heating carrier generated by the heating source first enters the side wall of the stirring pot to heat the stirring pot 3, and then enters the rotary joint 5 to heat the stirring shaft 2, that is, the heating source, the jacket 31 and the rotary joint 5, and the stirring.
  • the heating circuit composed of the shaft 2 is a series communication mode.
  • the heating circuit of the present invention can also be connected in parallel. In the parallel communication, the heating source can simultaneously supply heat to the jacket 31 and the rotary joint 5. And forming a separate heating circuit as long as it can satisfy the purpose of the present invention, The present invention does not limit the change of such a connection mode.
  • the upper end of the stirring pot 1 has a top cover 13, which has an insulating layer 131.
  • the heat insulating layer referred to herein is any heat insulating layer commonly seen in the art, and the present invention does not limit its kind and specifications.
  • the agitating and heating device provided by the present invention is horizontal agitating, and the arrangement of the horizontal agitating and the mixing of the agitating blades 21 provided by the two agitating shafts 2 can increase the mixing and heating efficiency of the material. And the structure is simple and reasonable.
  • both ends of the agitating pot 1 are provided with an upper side feed port 11 and a lower side discharge port 12, wherein the material is moved from the upper side feed port 11 to the lower side by the paddle 21 Outlet port 12.
  • the agitating paddle has various embodiments, for example, the paddle blade 21 is preferably designed as a propeller, through a plurality of The co-rotation of the propeller moves the material toward the discharge port. Therefore, preferably, the agitating shaft 2 includes a plurality of agitating blades 21, and the plurality of agitating blades 21 are propellers, and the spiral directions are the same.
  • the stirring blade 21 includes a stirring blade 211 and fins 212 perpendicular to the stirring blade 211 and disposed on the side of the stirring blade 211.
  • the material can be more effectively moved while stirring, and the heating area of the material is increased due to the presence of the fins 212, so that the joining effect and efficiency of the present invention are better.
  • the fins 212 should be disposed on one side of the stirring blade 211 away from the lower discharge port 212 to complete the movement of the material to the lower discharge port.
  • the present invention also reverses the spiral direction of the agitating paddle 21 on the other side of the lower side discharge port 12 and the spiral direction of the other agitating paddles 21 to make the material sucked into the other side heavy.
  • the feed is newly moved back so that the material does not accumulate in the mixing pot.
  • the communication mode of the heating carrier of the present invention can also include a mixing mode in series and parallel, that is, the heating source first communicates with the jacket 31, and then respectively It communicates with the rotary joint 5 of the two agitating shafts 2.
  • the driving device 3 comprises two motors 31, the two agitating shafts 2 are respectively connected to the two motors 31, and the two motors 31 have motor synchronizers to ensure the synchronization of the rotations of the two agitating shafts 2, avoiding The agitating paddle 21 on the agitating shaft 2 is not well fitted, and even interference occurs.
  • the two motors 31 preferably also have a speed control device.
  • the rotation speed of the motor 31 and the stirring shaft 2 and the steering can be changed as needed, thereby adjusting the residence time of the material in the stirring pot to change the heating temperature and stirring effect of the material, for example, when it is required to close the material of the lower discharge port 12
  • the steering of the rotating shaft 2 can be changed by the speed regulating device, and the material can be reversely moved toward the upper feeding port 11 by the stirring paddle 12 to increase the stirring and heating effect of the material.
  • the driving device may further include a motor and a reducer with two output shafts, and the two output shafts of the reducer simultaneously ensure the rotation of the two agitating shafts.
  • the class drive mode is more, the invention is not limited.
  • the synchronizer and the speed governing device of the motor according to the present invention are any synchronizers and speed regulating devices known in the art, and the present invention is not limited thereto as long as the object of the present invention is satisfied.
  • the agitating pot 1 is provided with an exhaust port 14 for discharging water vapor generated during heating without affecting the dryness of the material. Also, the agitating pot 1 is provided with an admixture inlet. In order to add various additives in time during the stirring process.
  • the material stirring heating device further comprises a temperature sensor, a controller, a display, an alarm device
  • the heating source comprises a valve
  • the temperature sensor is electrically connected to the display and the controller respectively, and the controller respectively
  • the valve and the alarm device are electrically connected.
  • the automatic control of the stirring heating is realized by detecting the temperature.
  • the temperature sensor can be set at the position of the discharge port to accurately detect whether the temperature of the material after heating meets the standard, and the display shows the temperature of the material, and the controller controls the heating source according to the temperature of the material.
  • the valve is closed and opened.
  • the controller can control the alarm device alarm and close the valve of the heating source, thereby realizing the automatic operation of material heating and making the temperature control more accurate.
  • components such as temperature sensors and controllers are common components in the art, for example, the temperature sensor can be a thermal resistor or a thermocouple, and the controller can be a PLC controller.
  • the material stirring and heating device provided by the invention can continuously heat the material, heat evenly, and has less heat loss and high heating efficiency.
  • the material stirring and heating device is also suitable for heating regeneration of the old asphalt mixture, which can effectively prevent high temperature aging of the asphalt heating.
  • the material stirring and heating device provided by the invention has reasonable design, simple and practical, convenient control, and has strong practicability and popularization value.
  • an asphalt mixing apparatus comprising the material stirring heating apparatus provided by the present invention.
  • the heating source of the material stirring heating device may be a heat conducting oil furnace which is often arranged in the asphalt mixing device. Therefore, the asphalt mixing apparatus of the present invention is capable of continuously and sufficiently mixing various aggregates to efficiently heat the aggregate while mixing uniformly.
  • the material stirring and heating device is also suitable for heating and regenerating the old asphalt mixture, which can effectively prevent the high temperature aging of the asphalt heating, thereby greatly improving the practicability of the asphalt mixing device provided by the present invention.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

公开了一种物料搅拌加热装置,该物料搅拌加热装置包括搅拌锅(1),安装在该搅拌锅(1)内的搅拌轴(2),驱动装置(3)和加热源,其中所述搅拌轴(2)具有搅拌桨(21),并由所述驱动装置(3)驱动,并且所述搅拌轴(2)内具有轴向通道(22),该轴向通道(22)与所述加热源相通。还公开了一种沥青搅拌设备,该沥青搅拌设备包括上述物料搅拌加热装置。由于上述搅拌加热装置的搅拌轴内部具有与加热源相通的轴向通道,能够使物料在搅拌的同时,能够得到均匀的加热,热损失少,加热效率高并且设计合理,结构简单,有效地提高了上述沥青搅拌设备的实用性。

Description

物料搅拌加热装置和沥青搅拌设备
技术领域
本发明涉及物料搅拌加热领域, 具体地, 涉及一种物料搅拌加热装置 和沥青搅拌设备。 背景技术
随着各种工程建设的广泛开展, 例如沥青混合料搅拌设备、 混凝土搅 拌设备等得到广泛的应用。 其中, 如沥青混合料搅拌设备 (又称沥青搅拌 设备或沥青搅拌站) 是沥青路面施工的关键设备, 主要用于将沙石料、 沥 青、 矿粉等材料计量并搅拌成沥青混合料。 在施工时, 沙石料、 沥青均需 进行加热干燥到 150°C温度左右, 但矿粉为常温, 实际施工时需要通过适当 提高沙石料的加热温度, 在搅拌时预先把沙石料和矿粉预搅拌, 以提高矿 粉的温度。 然后再将其和沥青搅拌混合成合格的沥青混合料。
但随着路面施工材料的不断变化, 混合料的施工温度和矿粉添加的比 例越来越高。 以浇筑式沥青混合料为例, 需要的成品沥青混合料温度约 250 °C, 矿粉比例超过 20%。如单纯采用常规的办法, 骨料温度需要加热到 300 °C以上, 给设备的可靠运行带来诸多问题。 即便如此, 矿粉的温度和温度 的均匀性很难在短时间的预搅拌后达到要求, 产能受到限制。 现有技术中, 通常采用搅拌加热的方式, 即在搅拌机构搅拌物料的同时, 在搅拌机构外 侧设置加热源进行加热, 但是这种方式的热效率不高, 加热均匀性不好, 使得设备的加热能力受到限制, 并导致加热的成本大幅增高。 因此, 提供 一种加热均匀有效的物料加热装置具有积极意义。 发明内容
本发明的一个目的是提供一种物料搅拌加热装置, 该物料搅拌加热装 置设计合理、 结构简单, 并且加热均匀, 加热效率高。
本发明的另一目的是提供一种沥青搅拌设备, 该沥青搅拌设备包括本 发明提供的物料搅拌加热装置。
为了实现上述目的, 本发明提供一种物料搅拌加热装置, 该物料搅拌 加热装置包括搅拌锅、 安装在该搅拌锅内的搅拌轴、 驱动装置和加热源, 其中, 所述搅拌轴具有搅拌桨, 并由所述驱动装置驱动, 所述搅拌轴内具 有轴向通道, 该轴向通道与所述加热源相通。
优选地, 所述搅拌轴为包括第一内管和第一外管, 所述第一内管通过 定位架安装在所述第一外管内, 所述轴向通道包括第一轴向通道和第二轴 向通道, 其中, 所述第一轴向通道位于为所述第一内管内, 所述第二轴向 通道位于所述第一内管和所述第一外管之间, 并且所述第一轴向通道和第 二轴向通道相连通。
优选地, 所述加热源与所述第二轴向通道相通, 所述加热源产生的加 热载体首先通过所述第二轴向通道进入所述搅拌轴, 然后通过所述第一轴 向通道排出。
优选地, 所述搅拌轴的一端封闭并连接所述驱动装置, 另一端通过旋 转接头与所述加热源相通。
优选地, 所述旋转接头包括壳体、 第二内管、 第二外管、 进口和出口, 其中, 所述第二内管位于所述第二外管的内部, 并且所述第二内管和所述 第二外管间隔设置, 并且分别可旋转地安装在所述壳体内, 所述出口与所 述第二内管相通, 所述进口与所述第二外管相通。
优选地, 所述第二内管和所述第二外管与所述壳体之间分别设置有密 封件。
优选地, 所述第二内管与所述搅拌轴的第一轴向通道相通, 所述第二 外管与所述搅拌轴的第二轴向通道相通。
优选地, 所述第二内管和所述第二外管通过法兰与所述搅拌轴相连。 优选地, 所述搅拌锅的侧壁内设置有夹套, 该夹套的一端具有进热口, 另一端具有出热口。
优选地, 所述进热口与所述加热源相通, 所述出热口与所述旋转接头 的所述进口相通。
优选地, 所述搅拌锅上端具有顶盖, 该顶盖具有保温层。
优选地, 所述搅拌锅的两端安装有两根相互平行的所述搅拌轴, 该两 根所述搅拌轴的所述搅拌桨间隔设置。
优选地, 所述搅拌锅的两端设置有上侧进料口和下侧出料口, 其中, 物料通过所述搅拌桨从所述上侧进料口移向所述下侧出料口。
优选地, 所述搅拌轴包括多个所述搅拌桨, 多个所述搅拌桨为螺旋桨, 并且螺旋方向相同。
优选地, 所述搅拌桨包括搅拌叶片和垂直于所述搅拌叶片并设置在所 述搅拌叶片一侧的鳍片。
优选地, 所述驱动装置包括两个电机, 两根所述搅拌轴分别与所述两 个电机相连, 并且该两个电机具有电机同步器。
根据本发明提供的另一方面, 提供一种沥青搅拌设备, 所述沥青搅拌 设备包括本发明提供的物料搅拌加热装置。
通过上述技术方案, 由于本发明提供的物料搅拌加热装置的搅拌轴内 部具有与加热源相通的轴向通道, 能够使物料在搅拌的同时, 能够得到均 匀的加热, 热损失少, 加热效率高并且设计合理, 结构简单, 并有效提高 了本发明提供的沥青搅拌设备的实用性。
本发明的其他特征和优点将在随后的具体实施方式部分予以详细说 明。 附图说明
附图是用来提供对本发明的进一步理解, 并且构成说明书的一部分, 与下面的具体实施方式一起用于解释本发明, 但并不构成对本发明的限制。 在附图中:
图 1是本发明提供的物料搅拌加热装置的正视结构示意图;
图 2是本发明提供的物料搅拌加热装置的侧视结构示意图;
图 3是沿图 1中线 A-A截取的剖视示意图;
图 4是图 1中 B部的放大图;
图 5是本发明提供的旋转接头的剖视示意图。 具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是, 此处所描述的具体实施方式仅用于说明和解释本发明, 并不用于限制本发 明。
在本发明中, 在未作相反说明的情况下, 使用的方位词如 "上、 下、 两端"通常是在本发明提供的物料搅拌加热装置正常使用的情况下定义的, 具体地, 如图 1中所示的方向。
根据本发明的一个方面, 如图 1至图 5所示, 本发明提供一种物料搅 拌加热装置, 该物料搅拌加热装置包括搅拌锅 1、安装在该搅拌锅 1内的搅 拌轴 2、 驱动装置 3和加热源, 其中, 搅拌轴 2具有搅拌桨 21, 并由驱动 装置 3驱动, 并且搅拌轴 2内具有轴向通道 22, 该轴向通道 22与加热源相 通。
在上述技术方案中, 巧妙地在搅拌轴 2 内设置有与加热源相通的轴向 通道, 因此, 搅拌轴在对物料进行搅拌的同时, 能够对物料进行均匀加热, 并且热量损失少, 加热效率高。 另外, 本发明提供的物料搅拌加热装置结 构简单易行, 具有较强实用性。 需要说明的是, 能够上述本发明目的实施方式有多种, 例如轴向通道 的设置等, 为了方便说明, 本发明只介绍其中的优选实施方式, 该优选实 施方式只用于说明本发明, 并不用于限制本发明。 另外, 本发明中提及的 加热源能够为本领域内所公知的任意具有加热载体的加热源, 例如加热炉、 燃烧炉等, 其加热载体可以为导热油或者高温烟气, 只要满足本发明的目 的, 本发明对此不做限制。
在优选实施方式中, 优选地, 搅拌轴 2为包括第一内管 23和第一外管 24, 第一内管 23通过定位架 25安装在第一外管 24内, 轴向通道 22包括 第一轴向通道 221和第二轴向通道 222, 其中, 第一轴向通道 211位于为第 一内管 23内, 第二轴向通道 222位于第一内管 23和第一外管 24之间, 并 且第一轴向通道 221和第二轴向通道 222相连通。 通过在搅拌轴 2内设计 两条相通的轴向通道 22, 能够使加热载体在搅拌轴 2内形成加热回路, 因 此能够实现加热载体的循环流动, 实现对物料的二次连续加热, 有利于热 量在搅拌轴 2内的保持, 有效利用热能。 在其他实施方式中, 搅拌轴 2也 可以为单通道的空心管, 其中加热载体可以从一端进入搅拌轴 2而从另一 端排出, 同样能实现本发明的目的, 另外其他可以实现本发明目的的形式, 在此不做过多赘述。另外,本发明中所涉及的定位架 25为非封闭式的设计, 以为加热载体提供流动路径, 例如可以为由分别固定在第一内管 23的外表 面和第一外管 24的内表面上的多条加强筋形成, 此种固定定位技术为本领 域技术人员所公知, 在此不做过多赘述。
由于物料在搅拌轴 2 的外侧, 因此优选地加热源与位于外侧的第二轴 向通道 222相通, 加热源产生的加热载体首先通过第二轴向通道 222进入 搅拌轴 2, 然后通过第一轴向通道 211排出。 因此, 可以将热量更有效地传 递给搅拌轴 2的外表面和搅拌桨 21, 以更有效地提供加热效率。
另外优选地, 如图 4所示, 搅拌轴 2的一端封闭并连接驱动装置 3, 以 获取转动的动力, 另一端通过旋转接头 5 与加热源相通。 并且第一轴向通 道 221和第二轴向通道 222在封闭的一端相通。 因此, 加热源产生的加热 载体能够首先通过搅拌轴 2的所述另一端进入搅拌轴 2的一条轴向通道, 然后在封闭的所述一端进入另一条轴向通道, 再返回到加热源进行重新加 热, 以实现循环加热。 其中, 旋转接头 5能够将搅拌轴 2的第一轴向通道 221和第二轴向通道 222分别与加热源更加方便有效地连通。在其他实施方 式中, 也可以不通过旋转接头 5, 而直接将搅拌轴 2和加热源相通。
在优选实施方式中, 如图 5所示, 旋转接头 5包括壳体 56、 第二内管 51、 第二外管 52、 进口 53和出口 54, 其中, 第二内管 51位于第二外管 52 的内部, 并且第二内管 51和第二外管 52间隔设置, 并且分别可旋转地安 装在壳体 56内,出口 54与第二内管 51相通,进口 53与第二外管 52相通。 并且, 第二内管 51和第二外管 52与壳体 56之间分别设置有密封件 57。 因 此, 第二内管和第二外管为相互独立, 不会发生第二内管 51和第二外管 52 的加热载体向混杂的情况。 另外, 优选地, 第二内管 51与搅拌轴 2的第一 轴向通道 221相通, 第二外管 52与搅拌轴 2的第二轴向通道 222相通。 即 加热载体首先通过进口 53和第二外管 52和第二内管 51之间的间隔所形成 的流道进入搅拌轴 2的第二轴向通道 222,并且将热量传递到搅拌轴 2的外 表面和搅拌桨 21上, 从而对搅拌物料的同时对物料进行均匀的加热, 然后 加热载体通过第一轴向通道 221、第二内管 51和出口 54返回到加热源中进 行重新加热, 以实现对物料的循环加热。
其中具体地, 旋转接头 5的第二内管 51和第二外管 52通过法兰 55与 搅拌轴 2相连。 在实际中, 搅拌轴 2的第一内管 23和第一外管 24需要与 旋转接头 5的第二内管 51和第二外管 52分别对齐, 并且优选内管之间具 有插接部, 例如在本发明的优选实施方式中, 根据加热载体的流向, 优选 第一内管 23能够插接到第二内 52管中, 以避免加热载体的流出。 除了采 用法兰连接的方式外, 还可以使用螺紋连接的形式, 即分别在相应的内管 和外管上设置相互配合的螺紋, 此类方式为本领域技术人员所知, 再次不 做过多阐述。 另外, 为了彻底避免在二者的连接部发生加热载体的泄露, 可以优选将第一内管 23和第二内管 52为一体结构, 以及 /或者第一外管 24 和第二外管 52为一体结构,即直接将第一内管 23和 /或第一外管 24可旋转 地安装在旋转接头 5 内部。 另外, 在上述方案中, 相应的内管和外管可以 通过轴承可旋转地安装在旋转接头 5的壳体 56内, 本领域技术人员能够对 上述方案进行改进和替换, 但这种改进和替换也应落在本发明的保护范围 内。 此外, 在采用单通道空心管式搅拌轴 2 的实施方式中, 也可以使用类 似于旋转接头 5 的接头和加热源连接, 此时的接头不必设计为具有第二内 管和第二外管, 只需将其设计为直通式接头即可, 即该旋转接头只包括进 口和出口已经连接进口和出口的单通道, 即可快速完成单通道空心管式搅 拌轴 2和加热源的连接。
为了更加完善本发明提供的物料搅拌设备的加热效果, 优选地, 搅拌 锅 3的侧壁内设置有夹套 31, 该夹套 31的一端具有进热口 311, 另一端具 有出热口 312。即在搅拌锅的侧壁内设置加热载体的流动路径, 使得搅拌锅 本身具有加热效果, 因此能够使本发明的加热效果和加热效率更高。 其中, 为了进一步增加搅拌锅 3的加热效果, 该夹套 31的内侧壁优选采用导热性 好的材料制作, 以利于热量传递到搅拌锅 3内, 而夹套 31的外侧壁怎优选 采用隔热材料制作, 以防止热量损失。 对于本发明中涉及的夹套 31, 只要 满足发明的目的, 本发明对其具体结构和规格不做限制。
其中夹套 31和加热源的连通方式有多种, 优选地, 进热口 311与加热 源相通, 出热口 312与旋转接头 5的进口 53相通。 即加热源所产生的加热 载体首先进入搅拌锅的侧壁内对搅拌锅 3进行加热,然后才进入旋转接头 5 进而对搅拌轴 2进行加热, 即加热源、 夹套 31和旋转接头 5以及搅拌轴 2 所组成的加热回路为串联连通方式, 除了此类串联连通方式, 本发明的加 热回路还可以为并联连通, 在并联连通中, 加热源能够同时对夹套 31和旋 转接头 5进行供热, 并组成单独的加热回路, 只要能够满足本发明的目的, 本发明对此类连通方式的改变不做限制。
另外, 如图 3所示, 优选地搅拌锅 1上端具有顶盖 13, 该顶盖 13具有 保温层 131。 以增加搅拌锅的保温效果, 此处所涉及的保温层为本领域内常 见的任意保温层, 本发明对其种类和规格此不做限制。
为了使本发明的加热效率更高, 优选地, 搅拌锅 1 的两端安装有两根 相互平行的搅拌轴 2, 该两根搅拌轴 2的搅拌桨 21间隔设置。 即本发明提 供的搅拌加热装置为卧式搅拌, 通过这种卧式搅拌的布置方式, 以及两根 搅拌轴 2间隔设置的搅拌桨 21的相互配合, 能够使增加物料的搅拌和加热 的效率, 并且结构简单设计合理。
另外优选地, 如图 1所示, 搅拌锅 1的两端设置有上侧进料口 11和下 侧出料口 12, 其中, 物料通过搅拌桨 21从上侧进料口 11移向下侧出料口 12。 为了实现通过搅拌桨 21将物料从一端的上侧进料口 11移向另一端的 下侧出料口, 搅拌桨有多种实施方式, 例如优选地将搅拌桨 21设计为螺旋 桨, 通过多个螺旋桨的同向转动将物料移向出料口。 因此, 优选地搅拌轴 2 包括多个搅拌桨 21, 多个搅拌桨 21为螺旋桨, 并且螺旋方向相同。
为了进一步加强物料的搅拌和移动效率, 优选地, 搅拌桨 21包括搅拌 叶片 211和垂直于搅拌叶片 211并设置在搅拌叶片 211—侧的鳍片 212。通 过搅拌叶片 211和鳍片 212的共同作用, 能够更有效地将物料边搅拌边移 动, 并且由于鳍片 212 的存在, 增加了物料的加热面积, 使本发明的加入 效果和效率更好。 其中, 在实际使用中, 根据物料的移动方向, 鳍片 212 应该设置在搅拌叶片 211 中在远离下侧出料口 212的一边, 以完成物料向 下侧出料口的移动。
但是在实际使用中, 由于很难将下侧出料口 12设置在搅拌锅 3的理论 端部, 因此会有部分物料一直挤压在下侧出料口 12的另一侧, 为了最大程 度的解决这一问题, 本发明还将位于下侧出料口 12另一侧的搅拌桨 21 的 螺旋方向和其他搅拌桨 21的螺旋方向设置相反, 以将挤入另一侧的物料重 新移回出料口, 使物料不积存在搅拌锅内。
由于, 本发明提供的搅拌加热装后包括两根搅拌轴 2, 因此本发明的加 热载体的连通方式处串联、 并联外还能包括混连方式, 即加热源首先与夹 套 31相通, 然后分别与两根搅拌轴 2的旋转接头 5相通。 另外, 优选地, 驱动装置 3包括两个电机 31, 两根搅拌轴 2分别与两个电机 31相连, 并且 该两个电机 31具有电机同步器, 以保证两根搅拌轴 2的旋转同步, 避免搅 拌轴 2上的搅拌桨 21配合不好, 甚至发生干涉。 除此之外, 两个电机 31 还优选具有调速装置。以根据需要改变电机 31和搅拌轴 2的转速以及转向, 进而能够调节物料在搅拌锅内的停留时间, 以改变物料的加热温度和搅拌 效果, 例如当需要将接近下侧出料口 12的物料重新搅拌和加热, 可以通过 调速装置改变旋转轴 2的转向, 进而通过搅拌桨 12能够将物料反向朝上侧 进料口 11移动, 以增加物料的搅拌和加热效果。 另外, 除了使用两个电机 31和同步器的驱动方式外, 驱动装置还可以包括一个电机和一个双输出轴 的减速机, 由减速机的双输出轴同时保证两根搅拌轴的转动, 对于此类驱 动方式的更该, 本发明不做限制。 其中, 本发明中所涉及的电机的同步器 和调速装置为本领域内所公知的任意同步器和调速装置, 只要满足本发明 的目的, 本发明对此不做限制。
另外为了完善本发明, 优选地, 搅拌锅 1上设置有排气口 14, 以将加 热过程中产生的水蒸气排出, 不影响物料的干燥度。 并且, 搅拌锅 1 设置 有外加剂加入口。 以在搅拌过程中, 及时加入各种外加剂。
为了使本发明更加容易操作和使用, 优选地, 物料搅拌加热装置还包 括温度传感器、 控制器、 显示器、 报警装置, 加热源包括阀门, 温度传感 器分别与显示器和控制器电连接, 控制器分别与阀门和报警装置电连接。 以通过对温度的检测, 实现搅拌加热的自动控制。 其中, 温度传感器可以 设置在出料口的位置, 以准确地检测物料加热后的温度是否符合标准, 并 有显示器显示物料的温度, 另外控制器会根据物料的温度, 控制加热源的 阀门关闭和打开, 当物料温度超出设计标准时, 控制器可控制报警装置报 警并关闭加热源的阀门, 从而实现物料加热的自动化操作, 使温度控制的 精度更高。 其中, 温度传感器和控制器等部件均为本领域内所常见的部件, 例如温度传感器可以为热电阻或热电偶, 控制器则可以为 PLC控制器。
因此, 本发明提供的物料搅拌加热装置, 能够对物料进行连续加热, 加热均匀, 并且热量损失少, 加热效率高。 另外, 该物料搅拌加热装置也 适合旧沥青混合料的加热再生, 可有效防止沥青加热的高温老化。 其中, 本发明提供的物料搅拌加热装置设计合理, 简单实用, 控制方便, 具有较 强的实用性和推广价值。
根据本发明的另一方面, 本发明还提供一种沥青搅拌设备, 该沥青搅 拌设备包括本发明提供的物料搅拌加热装置。 其中, 物料搅拌加热装置的 加热源可以为沥青搅拌设备中常配置的导热油炉。 因此, 本发明提供的沥 青搅拌设备能够将各种骨料连续、 充分地混合, 在混合均匀的同时高效率 地将骨料加热。 另外, 该物料搅拌加热装置也适合旧沥青混合料的加热再 生, 可有效防止沥青加热的高温老化, 从而大大提升了本发明提供的沥青 搅拌设备的实用性。
以上结合附图详细描述了本发明的优选实施方式, 但是, 本发明并不 限于上述实施方式中的具体细节, 在本发明的技术构思范围内, 可以对本 发明的技术方案进行多种简单变型, 这些简单变型均属于本发明的保护范 围。
另外需要说明的是, 在上述具体实施方式中所描述的各个具体技术特 征, 在不矛盾的情况下, 可以通过任何合适的方式进行组合, 为了避免不 必要的重复, 本发明对各种可能的组合方式不再另行说明。
此外, 本发明的各种不同的实施方式之间也可以进行任意组合, 只要 其不违背本发明的思想, 其同样应当视为本发明所公开的内容。

Claims

权利要求
1、 一种物料搅拌加热装置, 该物料搅拌加热装置包括搅拌锅 (1)、 安 装在该搅拌锅 (1) 内的搅拌轴 (2)、 驱动装置 (3) 和加热源, 其中, 所 述搅拌轴 (2) 具有搅拌桨 (21), 并由所述驱动装置 (3) 驱动, 其特征在 于, 所述搅拌轴 (2) 内具有轴向通道 (22), 该轴向通道 (22) 与所述加 热源相通。
2、 根据权利要求 1所述的物料搅拌加热装置, 其特征在于, 所述搅拌 轴 (2) 为包括第一内管 (23) 和第一外管 (24), 所述第一内管 (23) 通 过定位架 (25) 安装在所述第一外管 (24) 内, 所述轴向通道 (22) 包括 第一轴向通道(221)和第二轴向通道(222),其中,所述第一轴向通道(211) 位于为所述第一内管 (23) 内, 所述第二轴向通道 (222) 位于所述第一内 管 (23) 和所述第一外管 (24) 之间, 并且所述第一轴向通道 (221) 和第 二轴向通道 (222) 相连通。
3、 根据权利要求 2所述的物料搅拌加热装置, 其特征在于, 所述加热 源与所述第二轴向通道 (222) 相通, 所述加热源产生的加热载体首先通过 所述第二轴向通道 (222) 进入所述搅拌轴 (2), 然后通过所述第一轴向通 道 (211) 排出。
4、 根据权利要求 1或 3所述的物料搅拌加热装置, 其特征在于, 所述 搅拌轴(2)的一端封闭并连接所述驱动装置(3), 另一端通过旋转接头(5) 与所述加热源相通。
5、 根据权利要求 4所述的物料搅拌加热装置, 其特征在于, 所述旋转 接头 (5) 包括壳体 (56)、 第二内管 (51)、 第二外管 (52)、 进口 (53) 和出口 (54), 其中, 所述第二内管(51)位于所述第二外管(52) 的内部, 并且所述第二内管 (51) 和所述第二外管 (52) 间隔设置, 并且分别可旋 转地安装在所述壳体 (56) 内, 所述出口 (54) 与所述第二内管 (51) 相 通, 所述进口 (53) 与所述第二外管 (52) 相通。
6、 根据权利要求 5所述的物料搅拌加热装置, 其特征在于, 所述第二 内管 (51) 和所述第二外管 (52) 与所述壳体 (56) 之间分别设置有密封 件 (57)。
7、 根据权利要求 5所述的物料搅拌加热装置, 其特征在于, 所述第二 内管 (51) 与所述搅拌轴 (2) 的第一轴向通道 (221) 相通, 所述第二外 管 (52) 与所述搅拌轴 (2) 的第二轴向通道 (222) 相通。
8、 根据权利要求 7所述的物料搅拌加热装置, 其特征在于, 所述第二 内管(51)和所述第二外管(52)通过法兰(55)与所述搅拌轴 (2)相连。
9、 根据权利要求 1所述的物料搅拌加热装置, 其特征在于, 所述搅拌 锅(3)的侧壁内设置有夹套(31), 该夹套(31)的一端具有进热口 (311), 另一端具有出热口 (312)。
10、 根据权利要求 5或 9所述的物料搅拌加热装置, 其特征在于, 所 述进热口 (311) 与所述加热源相通, 所述出热口 (312) 与所述旋转接头
(5) 的所述进口 (53) 相通。
11、 根据权利要求 1 所述的物料搅拌加热装置, 其特征在于, 所述搅 拌锅 (1) 上端具有顶盖 (13), 该顶盖 (13) 具有保温层 (131)。
12、 根据权利要求 1 所述的物料搅拌加热装置, 其特征在于, 所述搅 拌锅 (1) 的两端安装有两根相互平行的所述搅拌轴 (2), 该两根所述搅拌 轴 (2) 的所述搅拌桨 (21) 间隔设置。
13、 根据权利要求 1或 12所述的物料搅拌加热装置, 其特征在于, 所 述搅拌锅 (1) 的两端设置有上侧进料口 (11) 和下侧出料口 (12), 其中, 物料通过所述搅拌桨 (21) 从所述上侧进料口 (11) 移向所述下侧出料口 (12)。
14、 根据权利要求 13所述的物料搅拌加热装置, 其特征在于, 所述搅 拌轴 (2) 包括多个所述搅拌桨 (21), 多个所述搅拌桨 (21) 为螺旋桨, 并且螺旋方向相同。
15、 根据权利要求 14所述的物料搅拌加热装置, 其特征在于, 所述搅 拌桨 (21) 包括搅拌叶片 (211) 和垂直于所述搅拌叶片 (211) 并设置在 所述搅拌叶片 (211) —侧的鳍片 (212)。
16、 根据权利要求 12所述的物料搅拌加热装置, 其特征在于, 所述驱 动装置 (3) 包括两个电机 (31), 两根所述搅拌轴 (2) 分别与所述两个电 机 (31) 相连, 并且该两个电机 (31) 具有电机同步器。
17、 一种沥青搅拌设备, 其特征在于, 所述沥青搅拌设备包括根据权 利要求 1~16中任意一项所述的物料搅拌加热装置。
PCT/CN2011/080263 2011-09-28 2011-09-28 物料搅拌加热装置和沥青搅拌设备 WO2013044458A1 (zh)

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CN107552321A (zh) * 2017-10-10 2018-01-09 黄河科技学院 标线涂料导热油循环加热式料罐
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