CN212052193U - A high-quality asphalt mixture coarse aggregate regeneration device based on microwave technology - Google Patents
A high-quality asphalt mixture coarse aggregate regeneration device based on microwave technology Download PDFInfo
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- CN212052193U CN212052193U CN202020545730.0U CN202020545730U CN212052193U CN 212052193 U CN212052193 U CN 212052193U CN 202020545730 U CN202020545730 U CN 202020545730U CN 212052193 U CN212052193 U CN 212052193U
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- 239000000203 mixture Substances 0.000 title claims abstract description 37
- 238000005516 engineering process Methods 0.000 title claims abstract description 22
- 230000008929 regeneration Effects 0.000 title claims abstract description 18
- 238000011069 regeneration method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000012216 screening Methods 0.000 claims abstract description 48
- 238000000926 separation method Methods 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- 238000004064 recycling Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 6
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- 239000010935 stainless steel Substances 0.000 claims description 3
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- 230000001172 regenerating effect Effects 0.000 claims 2
- 210000001503 joint Anatomy 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 2
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- 238000000034 method Methods 0.000 description 11
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Abstract
本实用新型公开了一种基于微波技术的高品质沥青混合料粗骨料再生装置,装置包括加热分离箱,搅拌筛分箱和沥青回收箱。加热分离箱内部设置有旋转筛桶,微波发生器及波导,搅拌筛分箱设置有高压喷淋系统、表面粗糙的旋转辊筒、振动筛板和鼓风机,箱体外部有为高压喷淋系统供水的循环水系统。废旧沥青经加热分离箱微波加热分离、搅拌筛分箱喷淋、旋转辊筒摩擦,去除附着在骨料表面的沥青残留物,得到高品质的再生骨料。本装置结构简单,易于实现,可有效将骨料与沥青质及其杂物分离,避免了传统分离结构的能耗大,效率低,骨料损伤大以及沥青混合料只能用于沥青路面再生等问题。
The utility model discloses a high-quality asphalt mixture coarse aggregate regeneration device based on microwave technology. The device comprises a heating separation box, a stirring and screening box and an asphalt recovery box. The heating and separation box is equipped with a rotating screen barrel, a microwave generator and a waveguide. The stirring and screening box is equipped with a high-pressure spray system, a rotating roller with a rough surface, a vibrating screen plate and a blower. The outside of the box is provided with water for the high-pressure spray system. circulating water system. The waste asphalt is separated by microwave heating in the heating separation box, sprayed in the stirring and screening box, and rubbed by the rotating roller to remove the asphalt residue attached to the surface of the aggregate, and obtain high-quality recycled aggregate. The device has a simple structure and is easy to implement, and can effectively separate the aggregate from the asphaltene and its impurities, avoiding the large energy consumption, low efficiency, large aggregate damage and the asphalt mixture can only be used for asphalt pavement regeneration in the traditional separation structure. And other issues.
Description
技术领域technical field
本实用新型涉及建筑废弃物处理领域,具体涉及一种基于微波技术的高品质沥青混合料骨料再生装置。The utility model relates to the field of construction waste treatment, in particular to a high-quality asphalt mixture aggregate regeneration device based on microwave technology.
背景技术Background technique
随着技术的发展,沥青路面再生技术(Recycling Asphalt Pavement,简称RAP)在我国公路交通领域得到了一定的应用。其是将旧沥青路面经过翻挖、回收、破碎、筛分等工艺流程,再按一定比例向其中添加再生剂、新沥青材料、新集料等重新拌和成的新的沥青混合料。使其满足一定的路用性能并重新铺筑于路面的一整套工艺,称为沥青路面的再生技术。这种技术将废弃沥青混合料进行回收再利用,既减少了对新造天然骨料的需求量,也处置了废旧沥青混合料,具有很大的经济价值和环境保护作用。With the development of technology, Recycling Asphalt Pavement (RAP) has been applied to a certain extent in the field of highway transportation in my country. It is a new asphalt mixture obtained by re-mixing the old asphalt pavement through excavation, recycling, crushing, screening and other processes, and then adding regenerant, new asphalt material, new aggregate, etc. to it in a certain proportion. A set of processes to make it meet certain road performance and re-pave it on the road surface is called the regeneration technology of asphalt pavement. This technology recycles the waste asphalt mixture, which not only reduces the demand for new natural aggregates, but also disposes of the waste asphalt mixture, which has great economic value and environmental protection.
目前的沥青路面再生技术中,是将废旧沥青混合料经过机械破碎成不同粒径规格大小的产品,然后将其经过冷拌或热拌技术,按照路面等级要求对原料进行配比并添入新原料,成为新配置的沥青混合料并填筑于路面发挥路用性能。从而实现沥青混合料的处置与再生。但在该项技术对混合料的回收利用中,仍存在一些问题。1.对废弃沥青混合料直接进行机械破碎时,其破碎方式粗犷,对骨料的损伤较大,导致生产的再生混合料路用性能降低。2.对混合料进行回收利用时,骨料表面附着有沥青,使得回收所得骨料只能用于制作再生沥青混合料。3.该技术再生过程中仍需添加大量新骨料,经济效益与环保作用不显著。In the current asphalt pavement recycling technology, the waste asphalt mixture is mechanically crushed into products of different particle sizes and sizes, and then it is subjected to cold mixing or hot mixing technology to mix the raw materials according to the requirements of the road grade and add new ones. The raw material becomes a newly configured asphalt mixture and is filled on the road surface to exert road performance. So as to realize the disposal and regeneration of asphalt mixture. However, there are still some problems in the recycling of mixed materials by this technology. 1. When the waste asphalt mixture is directly mechanically crushed, the crushing method is rough and the damage to the aggregate is relatively large, which leads to the reduction of the road performance of the produced recycled mixture. 2. When the mixture is recycled, asphalt is attached to the surface of the aggregate, so that the recovered aggregate can only be used to make recycled asphalt mixture. 3. In the regeneration process of this technology, a large amount of new aggregate still needs to be added, and the economic benefits and environmental protection effects are not significant.
实用新型内容Utility model content
为解决现有技术中存在的上述缺陷,本实用新型的目的在于提供一种基于微波技术的高品质沥青混合料粗骨料再生装置,本实用新型装置能够有效将骨料与沥青质及其杂物分离,避免了传统分离结构的能耗大,效率低,骨料损伤大以及沥青混合料只能用于沥青路面再生等问题。In order to solve the above-mentioned defects in the prior art, the purpose of this utility model is to provide a high-quality asphalt mixture coarse aggregate regeneration device based on microwave technology. It avoids the problems of high energy consumption, low efficiency, large aggregate damage and asphalt mixture can only be used for asphalt pavement regeneration in the traditional separation structure.
本实用新型是通过下述技术方案来实现的。The utility model is realized through the following technical solutions.
本实用新型实施例提供了一种基于微波技术的高品质沥青混合料粗骨料再生装置,该装置包括加热分离箱、搅拌筛分箱和沥青回收箱;The embodiment of the present utility model provides a high-quality asphalt mixture coarse aggregate regeneration device based on microwave technology, the device includes a heating separation box, a stirring and screening box, and an asphalt recovery box;
所述加热分离箱内部设置有旋转筛桶,旋转筛桶两端设置有电动旋转门,加热分离箱侧壁分别设有与电动旋转门对应的进料口和骨料出口,骨料出口通过骨料传送带连通搅拌筛分箱;The heating separation box is provided with a rotary screen barrel, and the two ends of the rotary screen barrel are provided with electric revolving doors. The side wall of the heating separation box is respectively provided with a feeding port and an aggregate outlet corresponding to the electric revolving door. The material conveyor belt is connected to the stirring and screening box;
还包括设于加热分离箱上的PLC控制系统、微波发生器、波导和热电偶,PLC控制系统连接旋转筛桶、微波发生器和波导;箱体下部设有倾斜分布的沥青传送板,通过沥青出口连通沥青传送带与沥青回收箱相连;It also includes a PLC control system, a microwave generator, a waveguide and a thermocouple set on the heating and separation box. The PLC control system is connected to the rotary screen barrel, the microwave generator and the waveguide; the lower part of the box is provided with an inclinedly distributed asphalt conveying plate to pass the asphalt. The outlet is connected to the asphalt conveyor belt and the asphalt recovery box;
所述搅拌筛分箱中设有与骨料传送带对接的倾斜挡板,将搅拌筛分箱分隔为辊筒搅拌腔和振动筛分腔,所述辊筒搅拌腔中设有旋转辊筒,还包括设于搅拌筛分箱上的高压喷淋系统;所述振动筛分腔设有倾斜设置的振动筛板,振动筛板下部连通搅拌筛分箱的出料口。The mixing and screening box is provided with an inclined baffle that is docked with the aggregate conveyor belt, and the mixing and screening box is divided into a roller mixing chamber and a vibrating screening chamber. The roller mixing chamber is provided with a rotating roller. It includes a high-pressure spray system arranged on the stirring and screening box; the vibrating screening cavity is provided with a vibrating screen plate arranged obliquely, and the lower part of the vibrating screen plate is connected to the discharge port of the stirring and screening box.
对于上述技术方案,本实用新型还有进一步优选的方案:For above-mentioned technical scheme, the present utility model also has further preferred scheme:
优选的,所述旋转筛桶为不锈钢空心圆柱体,侧壁上布满筛孔,所述旋转筛桶通过筛桶中心转轴连接电机输出轴旋转。Preferably, the rotary sieve barrel is a stainless steel hollow cylinder, and the side wall is covered with sieve holes, and the rotary sieve barrel is connected to the output shaft of the motor through the central rotating shaft of the sieve barrel to rotate.
优选的,所述PLC控制系统连接筛桶中心转轴和电动旋转门;电动旋转门上和加热分离箱的侧壁分别设有磁性对准装置。Preferably, the PLC control system is connected to the central rotating shaft of the sieve barrel and the electric revolving door; the electric revolving door and the side wall of the heating separation box are respectively provided with magnetic alignment devices.
优选的,在筛桶中心转轴上连接有电动伸缩杆件。Preferably, an electric telescopic rod is connected to the central rotating shaft of the screen barrel.
优选的,在沥青传送板下方设有第一振动器。Preferably, a first vibrator is provided below the asphalt conveying plate.
优选的,所述骨料出口与电动旋转门出口对接处设有骨料接收挡板。Preferably, an aggregate receiving baffle is provided at the joint of the aggregate outlet and the outlet of the electric revolving door.
优选的,在搅拌筛分箱的侧壁设置有与骨料传送带末端相连的入料口,入料口对接一块倾斜挡板,倾斜挡板与在搅拌筛分箱侧壁上的滑动隔板连接。Preferably, the side wall of the stirring and screening box is provided with a feeding port connected to the end of the aggregate conveyor belt, the feeding port is connected to an inclined baffle, and the inclined baffle is connected to the sliding partition on the side wall of the stirring and screening box .
优选的,所述旋转辊筒表面设有若干辊棒,辊棒长度沿旋转辊筒轴向从左向右依次递增,辊棒构成的旋转辊筒旋转面与倾斜挡板倾斜度一致,且辊棒表面为锯齿状。Preferably, a plurality of roller bars are arranged on the surface of the rotating roller, and the length of the roller bars increases sequentially from left to right along the axis of the rotating roller. The rod surface is serrated.
优选的,所述振动筛板与倾斜挡板倾斜方向相反,其下部装有第二振动器,振动筛板上设有孔隙;在振动筛分腔侧壁设有与振动筛板上部对接的第二鼓风机。Preferably, the vibrating screen plate is opposite to the inclined baffle plate, the lower part of the vibrating screen plate is provided with a second vibrator, and the vibrating screen plate is provided with pores; Two blowers.
优选的,所述高压喷淋系统包括设于搅拌筛分箱顶部和侧部的高压水喷淋头,高压水喷淋头连通循环水系统,循环水系统通过循环水管与振动筛分腔底部水循环装置入水口连通,通过水泵连通循环水管依次连通有水箱和加压设备,加压设备连通高压水喷淋头。Preferably, the high-pressure spray system includes high-pressure water spray heads arranged at the top and side of the stirring and screening box, the high-pressure water spray heads are connected to a circulating water system, and the circulating water system circulates with the bottom of the vibrating screening cavity through a circulating water pipe The water inlet of the device is connected, and the water tank and the pressurizing equipment are connected in turn through the water pump and the circulating water pipe, and the pressurizing equipment is connected with the high-pressure water spray head.
本实用新型由于采取以上技术方案,其具有以下有益效果:The utility model has the following beneficial effects due to the adoption of the above technical solutions:
1、设置有微波加热设备,利用混合料加热后沥青质由固态变为流态的特性,巧妙利用空心筛桶高速旋转产生的离心力,使骨料与沥青等其他杂质分离。该方法避免了传统工艺中机械振捣、研磨、压碎等方法对骨料产生的损伤。1. Equipped with microwave heating equipment, using the characteristics of asphaltene from solid state to fluid state after the mixture is heated, the centrifugal force generated by the high-speed rotation of the hollow sieve barrel is cleverly used to separate the aggregate from other impurities such as asphalt. The method avoids the damage to the aggregate caused by mechanical vibrating, grinding, crushing and other methods in the traditional process.
2、于搅拌筛分箱中,设置有高压水喷淋系统,当骨料进入后,水喷射至温度较高的骨料表面,形成较高的温度梯度,使得骨料与表面附着沥青质分离;同时,高压水对骨料进行冲刷,可将表面附着沥青质冲刷干净。辊式破碎装置的辊棒表面为粗糙的锯齿形状,可使骨料表面的附着砂浆高效率脱落,通过高压水与旋转辊筒的共同作用,可大幅提高处理效率与质量。同时,高压水对旋转辊筒也具有冲刷和清洁作用,以此减小故障率,提高使用寿命。2. In the mixing and screening box, a high-pressure water spray system is installed. When the aggregate enters, the water is sprayed to the surface of the aggregate with a higher temperature to form a higher temperature gradient, so that the aggregate and the surface-attached asphaltene are separated. At the same time, the high-pressure water scours the aggregate, which can scour the surface adhering asphaltene. The surface of the roller bar of the roller crusher is rough sawtooth shape, which can make the attached mortar on the surface of the aggregate fall off efficiently. At the same time, the high-pressure water also has the effect of scouring and cleaning the rotating roller, so as to reduce the failure rate and improve the service life.
3、搅拌筛分箱中,设置有循环水系统,实现了水资源的循环利用,避免水污染,节约了成本和资源。3. There is a circulating water system in the mixing and screening box, which realizes the recycling of water resources, avoids water pollution, and saves costs and resources.
4、本实用新型中,设置有PLC总额和控制系统,用于控制微波发生器、波导,实现对加热分离箱中微波功率、照射时间、旋转筛桶的电动旋转门开闭、筛桶旋转角速度、转动时间、等参数进行预设操作参数的自动控制。实现设备操作的自动化,使得设备操作更加简单和便捷,提高生产效率。4. In the present utility model, a PLC system and a control system are provided, which are used to control the microwave generator and the waveguide, and realize the microwave power, irradiation time, opening and closing of the electric revolving door of the rotating sieve barrel, and the angular speed of the sieve barrel in the heating separation box. , rotation time, and other parameters to automatically control the preset operating parameters. Realize the automation of equipment operation, make equipment operation simpler and more convenient, and improve production efficiency.
5、本实用新型整个实施流程中,无需添加化学试剂,即可实现沥青混合料中粗骨料与沥青的分离,得到高质量的再生骨料和再生沥青,提高了成品的附加价值;且设备原理简单,易于操作,实用性能突出。5. In the whole implementation process of the utility model, the separation of coarse aggregate and asphalt in the asphalt mixture can be realized without adding chemical reagents, so as to obtain high-quality recycled aggregate and recycled asphalt, which improves the added value of the finished product; and the equipment The principle is simple, the operation is easy, and the practical performance is outstanding.
附图说明Description of drawings
此处所说明的附图用来提供对本实用新型的进一步理解,构成本申请的一部分,并不构成对本实用新型的不当限定,在附图中:The accompanying drawings described here are used to provide a further understanding of the present utility model and constitute a part of this application, and do not constitute an improper limitation to the present utility model. In the accompanying drawings:
图1为本实用新型结构示意图;Fig. 1 is the structural representation of the utility model;
图2为本电动旋转门转动不同角度示意图;Figure 2 is a schematic diagram of the electric revolving door rotating at different angles;
图3为本实用新型方法流程图。3 is a flow chart of the method of the present invention.
图中:1.加热分离箱;2.搅拌筛分箱;3.沥青回收箱;101.第一鼓风机;102.筛桶中心转轴;103.PLC控制系统;104.磁性对准装置;105.进料口;106.旋转筛桶;107.电动旋转门;108.沥青传送板;109.第一振动器;110.骨料接收挡板;111.沥青出口;112.骨料出口;113.波导;114.热电偶;115.微波发生器;116.骨料传送带;117.沥青传送带;201.电机;202.入料口;203.出料口;204.高压水喷淋头;205.辊棒;206.旋转辊筒;207.倾斜挡板;208.滑动隔板;209.振动筛板;210.第二鼓风机;211.第二振动器;212.水循环装置入水口;213.水泵;214.加压设备;215.水箱;216.水箱入水口。In the figure: 1. Heating separation box; 2. Stirring and screening box; 3. Asphalt recovery box; 101. The first blower; Feed inlet; 106. Rotary screen barrel; 107. Electric revolving door; 108. Asphalt conveying plate; 109. First vibrator; 110. Aggregate receiving baffle; 111. Asphalt outlet; 112. Aggregate outlet; 113. Waveguide; 114. Thermocouple; 115. Microwave generator; 116. Aggregate conveyor belt; 117. Asphalt conveyor belt; 201. Motor; 206. Rotating roller; 207. Inclined baffle; 208. Sliding baffle; 209. Vibrating screen plate; 210. Second blower; 211. Second vibrator; 212. Water inlet of water circulation device; 213. Water pump ; 214. Pressurized equipment; 215. Water tank; 216. Water tank inlet.
具体实施方式Detailed ways
下面将结合附图以及具体实施例来详细说明本实用新型,在此本实用新型的示意性实施例以及说明用来解释本实用新型,但并不作为对本实用新型的限定。The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the present utility model are used to explain the present utility model, but are not intended to limit the present utility model.
如图1所示,本实用新型实施例提供了一种基于微波技术的高品质沥青混合料骨料再生装置,该装置包括加热分离箱1、搅拌筛分箱2和沥青回收装置3。各箱体之间由传送带传送,各设备箱体设置有入料口和出料口,搅拌筛分箱外设置有循环水系统。As shown in FIG. 1 , an embodiment of the present invention provides a high-quality asphalt mixture aggregate regeneration device based on microwave technology, which includes a heating separation box 1 , a stirring and screening box 2 and an asphalt recovery device 3 . Each box is conveyed by a conveyor belt, each equipment box is provided with a material inlet and a material outlet, and a circulating water system is arranged outside the stirring and screening box.
其中,对于加热分离箱2,其箱体内部设置有旋转筛桶106,箱体侧壁分别设有与旋转筛桶106对应的进料口105和骨料出口112,进料口105设置在箱体左侧侧壁,用于添加沥青混合料。旋转筛桶106为不锈钢空心圆柱体,旋转筛桶106拆卸方便,可根据实际需要进行自由更换。侧壁上布满筛孔,孔径一般设置为2.36mm。在旋转筛桶106两端设置有电动旋转门107,可自动打开和关闭,方便混合料(骨料)的进入与离开。电动旋转门107设置有磁性对准装置104,分别位于旋转筛桶106和加热分离箱1的侧壁,待筛桶将要停止转动时,确保筛桶的半圆形入口和出口位于下方,分别对准入料口和出料垫板,以方便骨料的进入和滑出。Among them, for the heating separation box 2, a
旋转筛桶106通过与电机连接的筛桶中心转轴102支撑在加热分离箱1箱体侧壁上,在加热分离箱1箱体外部设有通过PLC控制系统103控制的电机,电机工作后带动筛桶中心转轴102旋转,进而带动旋转筛桶106旋转。筛桶中心转轴102由PLC综合控制系统103控制,筛桶中心转轴102既可以控制旋转筛桶106的转动,又可以将筛桶内部骨料推出筛桶。The
在筛桶中心转轴102处设置有电动伸缩杆件,当一批次混合料在筛桶内部完成旋转分离工作后,伸缩杆件伸长,将筛桶的一端举起,使得筛桶内部的骨料离开筛桶。An electric telescopic rod is provided at the central
在加热分离箱1箱体侧壁还设有热电偶114、微波发生器115及与之相连接的波导113在微波发生器115外侧设置有保护罩,以产生微波,加热混合料。箱体侧壁还设置有第一鼓风机101,用于箱体内外的空气交换。A
旋转筛桶106两端设置有电动旋转门107,其在旋转筛分桶工作时关闭,当完成筛分工作后打开。在加热分离箱中并通过热电偶114实时监测内部温度。Electric revolving
箱体侧壁还设置的PLC控制系统103,用于控制微波发生器115和波导113,实现对加热分离箱中微波功率、照射时间、旋转筛桶的电动旋转门107的开闭、筛桶旋转角速度、转动时间、等参数进行预设操作参数的自动控制。A
筛桶中心转轴102由PLC综合控制系统103控制,筛桶中心转轴102既可以控制旋转筛桶106的转动,又可以将筛桶内部骨料推出筛桶。PLC综合控制系统103用于控制微波发生器115、波导113,实现对加热分离箱中微波功率、照射时间、空心筛桶旋转角速度、转动时间等参数进行预设操作参数的自动控制。The central
如图2所示,为电动旋转门107在闭合状态、旋转30°、旋转120°和开启状态的示意图。As shown in FIG. 2 , it is a schematic diagram of the electric revolving
电动旋转门107出口对接一个设于骨料出口112上的骨料接收挡板110。筛桶内部完成旋转分离后得到的骨料,经过骨料接收挡板110,随后从骨料出口112离开箱体,通过骨料传送带116进入搅拌筛分箱2进行进一步的分离。The outlet of the electric revolving
在旋转筛桶106的正下方为具有一定坡度的沥青传送板108,沥青传送板下方设置有第一振动器109。分离出的沥青质落到沥青传送板108上,进而从沥青出料口111离开箱体,经过沥青传送带117进入沥青回收装置3。Just below the
在搅拌筛分箱2箱体侧壁设置有入料口202,与骨料传送带116的末端相连。在搅拌筛分箱2的侧壁设置有与骨料传送带116末端相连的入料口202,入料口202对接一块倾斜挡板207,在倾斜挡板207的末端对接有滑动隔板208,用以控制倾斜挡板的运动,滑动隔板208连接在搅拌筛分箱2的侧壁上,当一批次骨料完成冲洗和搅拌作业后,挡板打开,通过移动带动挡板的移动,使得在辊式搅拌腔内操作完成后的骨料能够进入振动筛分腔内。A feeding
搅拌筛分箱2由倾斜挡板207和滑动隔板208将其分上、下两部分,上部分为辊筒搅拌腔,下半部分为振动筛分腔。The stirring and screening box 2 is divided into upper and lower parts by the
在辊筒搅拌腔中设置有旋转辊筒206,通过搅拌筛分箱2外部的电机201工作带动旋转辊筒206旋转,旋转滚筒206表面设有辊棒205,辊棒205的长度沿旋转辊筒轴向从左向右长度依次递增,以适应倾斜挡板的倾斜度。在辊棒205的表面为粗糙的锯齿形状,有利于更好的将附着在骨料表面的沥青质去除掉,均可有效提高去除杂质的工作效率。A
辊筒搅拌腔腔体上部和侧部设置有高压水喷淋头204,对腔体内部骨料进行高压冲洗与降温,增强去除杂质的效果,同时,高压水对辊棒205进行冲洗,可提高辊棒的使用寿命。The upper and side parts of the roller mixing chamber are provided with high-pressure water spray heads 204, which can perform high-pressure washing and cooling of the aggregate inside the chamber to enhance the effect of removing impurities. The service life of the rollers.
在振动筛分腔中,设有倾斜设置的振动筛板209,筛板的孔径大小为2.36mm,作用是将沥青混合料和其中的粗骨料分离开来,筛除掉骨料表面的沥青残渣。筛板的下部有第二振动器211,可增强筛分效率。在振动筛板209的顶端,有第二鼓风机210,可对骨料进行通风干燥,用于加快骨料表面的空气流动,使骨料的干燥过程加速。骨料由倾斜放置的筛板滑移,经过出料口203离开搅拌筛分箱2。In the vibrating screening chamber, there is an inclined vibrating
搅拌筛分箱的水通过振动筛板209筛孔进入下部的滤水池并在此集聚,箱体外部设置有循环水系统,为了实现水循环利用,在搅拌筛分箱底部蓄水池内设置抽水装置的水循环装置入水口212,设置在滤水池处,管口处设置有多层滤网,以此过滤掉滤水池中水分的杂质,减小其对抽水系统的损害,降低设备故障率。其加压设备214、水泵213、水箱215等位于筛分箱外部。经过水泵213加压,将水抽至外置水箱215中储存,水箱上部设置有水箱入水口216,以便对水箱中的水进行补充,水箱下部的管道连接于水的加压设备214,将水加压之后经高压水喷淋头204射出,实现水的循环利用,节省了水资源,起到了保护环境,节约成本的作用。高压喷淋装置有利于更好的将附着在骨料表面的沥青质去除掉,同时对辊棒205进行冲洗,提高其使用寿命和使用效率。The water in the stirring and screening box enters the lower filter tank through the sieve holes of the vibrating
如图3所示,本实用新型的工作过程如下:废弃沥青混合料进入加热分离箱的旋转筛桶后,经过微波发生器的微波照射使混合料温度升高,沥青质逐步软化渐渐由固态变化为流态,再经过旋转筛桶的高速旋转产生的离心力作用,使沥青质携带着混合料中的其他混合物离开筛桶内部,使得粗骨料留在旋转筛桶内部,实现骨料与其他物质的分离,而不造成对骨料的损伤。随后,沥青骨料经由骨料传送带进入搅拌筛分箱的辊筒搅拌腔中,高压水喷淋头的水喷射在骨料表面,经过加热的物料浸水冷却后瞬间形成较大的温度梯度,进一步促进沥青骨料与砂浆的分离,且高压水对骨料表面附着沥青质也有一定的冲洗作用。另外,沥青骨料在旋转辊筒表面粗糙锯齿状的辊棒摩擦作用下,也加速了对沥青骨料表面附着沥青质的清理,提高了清理效率。随后沥青骨料进入振动筛分腔,经过振动作用分离掉沥青质杂质,经出料口离开箱体后,即得到高品质的沥青混合料骨料。As shown in Figure 3, the working process of the present utility model is as follows: after the waste asphalt mixture enters the rotary screen barrel of the heating separation box, the temperature of the mixture is raised by the microwave irradiation of the microwave generator, and the asphaltene gradually softens and gradually changes from a solid state. In a fluid state, the centrifugal force generated by the high-speed rotation of the rotary screen barrel causes the asphaltene to carry other mixtures in the mixture and leave the screen barrel, so that the coarse aggregate remains in the rotary screen barrel, and the aggregate and other substances are realized. separation without causing damage to the aggregate. Subsequently, the asphalt aggregate enters the roller mixing chamber of the mixing and screening box through the aggregate conveyor belt, and the water from the high-pressure water spray head is sprayed on the surface of the aggregate. It promotes the separation of asphalt aggregate and mortar, and high-pressure water also has a certain flushing effect on the asphaltene attached to the surface of the aggregate. In addition, under the action of the rough serrated roller bar friction on the surface of the rotating roller, the asphalt aggregate also accelerates the cleaning of the asphaltene adhering to the surface of the asphalt aggregate and improves the cleaning efficiency. Then the asphalt aggregate enters the vibrating screening cavity, and the asphaltene impurities are separated by vibration, and after leaving the box through the discharge port, high-quality asphalt mixture aggregate is obtained.
本实用新型并不局限于上述实施例,在本实用新型公开的技术方案的基础上,本领域的技术人员根据所公开的技术内容,不需要创造性的劳动就可以对其中的一些技术特征作出一些替换和变形,这些替换和变形均在本实用新型的保护范围内。The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some technical features according to the disclosed technical content without creative work. Replacement and deformation, these replacements and deformations are within the protection scope of the present invention.
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CN112728892A (en) * | 2020-12-31 | 2021-04-30 | 常州市昇源干燥设备科技有限公司 | Automatic control by temperature change matrimony vine stoving room of segmentation |
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CN111364320B (en) * | 2020-04-14 | 2024-02-27 | 西安建筑科技大学 | High-quality asphalt mixture coarse aggregate regenerating device and method based on microwave technology |
CN112728892A (en) * | 2020-12-31 | 2021-04-30 | 常州市昇源干燥设备科技有限公司 | Automatic control by temperature change matrimony vine stoving room of segmentation |
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