WO2018099130A1 - 一种废橡胶绿色复原再生一体化生产系统及方法 - Google Patents

一种废橡胶绿色复原再生一体化生产系统及方法 Download PDF

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Publication number
WO2018099130A1
WO2018099130A1 PCT/CN2017/096702 CN2017096702W WO2018099130A1 WO 2018099130 A1 WO2018099130 A1 WO 2018099130A1 CN 2017096702 W CN2017096702 W CN 2017096702W WO 2018099130 A1 WO2018099130 A1 WO 2018099130A1
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WIPO (PCT)
Prior art keywords
feeding
grinding disc
barrel
waste rubber
rubber
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PCT/CN2017/096702
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English (en)
French (fr)
Inventor
葛九敢
黎广
唐帆
芮桂生
王平
蒋水金
费大壮
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安徽世界村新材料有限公司
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Application filed by 安徽世界村新材料有限公司 filed Critical 安徽世界村新材料有限公司
Priority to RU2019116796A priority Critical patent/RU2730327C1/ru
Publication of WO2018099130A1 publication Critical patent/WO2018099130A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04—Disintegrating plastics, e.g. by milling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the invention relates to the field of production of recycled rubber, in particular to a waste rubber green recovery and regeneration integrated production system and method.
  • Rubber is the fourth strategic resource after industrial raw materials such as petroleum, iron ore and non-ferrous metals.
  • industrial raw materials such as petroleum, iron ore and non-ferrous metals.
  • the rapid increase in the use of automobiles the production of used tires is also increasing.
  • the accumulation of a large number of used tires is not only easy to breed.
  • Mosquitoes can also cause fires and cause serious harm to the human environment.
  • natural rubber and petroleum resources are seriously lacking. Therefore, China has used recycled rubber to produce recycled rubber to partially replace raw rubber.
  • the shortage of environmental rubber resources has become an important means.
  • recycled rubber has become a natural rubber and synthetic rubber. The third largest rubber resource.
  • the object of the present invention is to provide a waste rubber green recovery and regeneration integrated production system and method, to solve the defects of the prior art traditional chemical method regeneration high pollution, high energy consumption, intermittent, labor intensity and product performance instability and traditional machinery
  • the regeneration method has the disadvantage that the temperature is difficult to control and the quality of the product is unstable.
  • the invention relates to a waste rubber green recovery and regeneration integrated production system, which comprises: a feeding plasticizing device, a grinding disc type waste rubber recovery reactor, a cyclone separator, a cooling mixed filtering device, a granulation packaging device, wherein:
  • the feeding plasticizing device comprises a barrel provided with a central axis in a horizontal direction, a left side of the barrel is provided with a feeding port, a feeding screw feeding device is arranged on the feeding port, and a right end of the barrel is arranged as a discharging port.
  • a single screw coaxial with the barrel is mounted in the barrel, and a drive motor is mounted on the left end of the barrel, and the drive motor is driven
  • the output shaft is connected with the left end of the single screw, and the electromagnetic heating device is arranged closely on the top and bottom of the right side of the barrel;
  • the grinding disc type waste rubber recovery reactor comprises a casing, the top of the casing is provided with a feeding port, and the inlet port of the casing top receives the discharging port of the barrel in the feeding plasticizing device, and the casing side is provided with cooling.
  • Water inlet and cooling water outlet the other side of the casing is provided with a discharge opening, and a horizontal fixing plate is arranged in the casing, and a horizontal moving disc is mounted on the fixed disc through the rotating shaft, and the rotating shaft extends downward to the fixed disc Below, the middle of the moving grinding disc is provided with a feeding cone through the center slot, and a horizontal fixed grinding disc is fixedly disposed directly above the moving grinding disc in the casing, and the fixed grinding disc and the moving grinding disc are opposite and have a gap therebetween, and the center of the fixed grinding disc is provided for a central slot through which the split cone passes, the feed opening at the top of the casing extends downward to the split cone, and the bottom of the casing is provided with a drive motor, a reducer, and a coupling, and the drive motor passes through The lower end of the rotating shaft of the reducer and the coupling is connected with the lower end of the rotating shaft of the moving disc, and the scraping blade is fixedly mounted on the rotating shaft below the fixed disc, and the position of the dis
  • the cyclone separator comprises a body, the upper end of the body is covered with an upper cover, the upper cover is provided with an air outlet communicating with the body, the upper part of the body is provided with a feeding port, and the feeding port of the body receives the grinding disc type waste a discharge port on the side of the casing in the rubber recovery reactor, and a discharge port at the lower end of the body;
  • the cooling and mixing filter device comprises a barrel with a central axis in a horizontal direction on the left and right sides, a feeding port is arranged on the left side of the top of the barrel, and a feeding inlet at the top of the barrel receives the outlet of the lower end of the cyclone body, and the right end of the barrel is connected
  • the filter device has a discharge port at the right end of the filter device, and a twin screw with a common central axis of the barrel is rotatably mounted in the barrel, a drive motor and a reducer are arranged at the left end of the barrel, and the drive motor is driven by the reducer and the left end of the twin screw Connection, the top and bottom of the right side of the barrel are also closely arranged with a cooling device;
  • the granulation packaging device comprises a frame, and the granulator is driven by a driving motor, and the feeding port of the granulator receives the discharging port of the filtering device in the cooling mixing filter device, and the lower end of the granulator is provided
  • the finished rack packaging device for receiving the finished product outlet is located under the granulator in the rack.
  • the waste rubber green recovery and regeneration integrated production system is characterized in that: the stirring screw feeding device in the feeding plasticizing device comprises a hopper, and the lower end of the hopper receives the feeding port of the feeding plasticizing device, and the upper end of the hopper A hopper cover is installed on the cover, a feed opening is opened in the hopper cover, and a stirring screw vertically extending into the hopper is installed in the hopper cover, and a stirring motor and a cycloidal pin wheel reducer are arranged on the top of the hopper cover, and the stirring is performed.
  • the motor is connected to the upper end of the stirring screw via a cycloidal pinwheel reducer.
  • the waste rubber green recovery and regeneration integrated production system is characterized in that: the stirring screw
  • the upper part of the spin is provided with a fan-shaped stirring blade, and the lower part is provided with a spiral, and the spiral gradually becomes smaller from the top to the bottom.
  • the invention relates to a waste rubber green recovery and regeneration integrated production system, characterized in that: in the grinding disc type waste rubber recovery reactor, the dynamic grinding disc and the fixed grinding disc are horizontally discharged, and the discharge is more uniform than the vertical grinding disc.
  • the cooling disc and the fixed grinding disc are respectively provided with cooling discs at upper and lower ends, and the scraping blades are arranged in a trapezoidal shape to function as a self-cleaning material.
  • the invention relates to a waste rubber green recovery and regeneration integrated production system, characterized in that: a surface of the cooling plate contacting the fixed grinding disc or the moving grinding disc is provided with a serpentine groove inside, which is beneficial to prolong the contact time between the cooling water and the grinding disc. .
  • the invention relates to a waste rubber green recovery and regeneration integrated production system, characterized in that: in the cyclone separator, the air outlet of the upper cover of the upper end of the body can reduce the pressure in the rear stage cooling and mixing filter device.
  • the waste rubber green recovery and regeneration integrated production system is characterized in that: in the cooling and mixing filter device, the filtering device comprises a front section filter screen and a rear section orifice plate, and the material is extruded and filtered from the filter screen to the orifice plate.
  • the orifice plate acts as a fixed screen and withstands the pressure of the twin screw extruded material.
  • the recovered waste tires are crushed and separated by a fully automated crushing linkage line to obtain 1-8 mm rubber particles, which are sent to the feeding port of the feeding plasticizing device through the silo, and the rubber particles are conveyed by the stirring screw to the feeding plastic.
  • the feeding speed is 100-400kg / h
  • the stirring screw speed is 100-200r / min
  • the single screw speed is 200-400r / min
  • electromagnetic The heating temperature is 50-100 ° C
  • the first-stage transportation plasticizing treatment time is 3-5 min;
  • the plasticized material is conveyed through the feeding port of the feeding plasticizing device into the feeding port of the grinding disc type waste rubber recovery reactor, and then enters between the fixed grinding disc and the moving grinding disc through the feeding cone.
  • the dynamic grinding disc is driven by the grinding disc type waste rubber recovery reactor driven motor to rotate and the material is subjected to spiral extrusion, hoop shearing and stretching.
  • the material is ground into powder and the secondary green sulfur is also realized.
  • Regeneration the rotational speed of the dynamic grinding disc is controlled at 300-400r/min, the temperature is controlled at 150-190 °C by the gap between the cooling plate cooling structure and the grinding disc, and the regenerated material is sent to the grinding disc type waste rubber recovery reactor by the scraping blade rotation.
  • the reclaimed rubber discharged from the outlet of the cyclone separator enters the feed port of the cooling and mixing filter through the closed passage, and is cooled by the cooling device to 50-60 ° C during the conveying and mixing process by the twin-screw, with the aid of the twin-screw
  • the driving force is such that the cooled reclaimed rubber crude product is passed through a filtering device to remove impurities such as steel wires and incompletely regenerated particulate matter to obtain a desired reclaimed rubber semi-finished product, and the twin screw rotation speed is controlled at 130-270 r/min;
  • the filtered semi-finished rubber products are processed by a granulation packaging device to realize automatic granulation and packaging to obtain recycled rubber products.
  • the waste rubber green recovery and regeneration integrated production method is characterized in that: the rubber particle size is preferably 2-4 mm, the electromagnetic heating temperature is optimally 75 ° C, and the feeding speed is optimally 200 kg/h.
  • the stirring screw rotation speed is optimally 146 r/min, the single screw rotation speed is optimally 320 r/min, the dynamic grinding disc rotation speed is optimally 365 r/min, and the twin screw rotation speed is optimally 210 r/min.
  • the raw material of the process of the invention adopts 2-4 mm rubber particles.
  • the purpose is that the rubber particles are easily subjected to mechanical extrusion and shearing to produce corresponding shearing force, and all domestic waste rubber regenerations are made of rubber powder of 20 mesh or more. Compared with the process, it can save 200 kWh of energy per ton of raw materials;
  • the invention adopts the combination process of the first-stage transport plasticization and the secondary grinding disc type waste rubber recovery reactor to effectively reduce the temperature of the waste-type waste rubber recovery reactor which is difficult to rapidly reach the required waste rubber sulfur regeneration. Defects, and the first-stage transport plasticization can prevent the rubber particles from causing blockage of the secondary disc-type waste rubber recovery reactor after the rubber particles are initially softened;
  • the inner disc of the disc-type waste rubber recovery reactor is horizontal, which is compared with the vertical disc discharge. More uniform, its trajectory is spiral, the path from material to discharge is longer than traditional mechanical regeneration equipment, which is beneficial to prolong the reaction time of sulfur reduction regeneration.
  • the rubber particles are subjected to strong three-dimensional grinding disc in the reactor.
  • the shear ring is firstly ground into a powder with a larger specific surface area by stress extrusion, stretching, friction, deformation, etc., and SS is controlled by controlling the shearing force by means of a cooling disk with an annular passage inside.
  • the breaking of the bond and the CS bond destroys the three-dimensional network structure of the waste rubber and chemically breaks the sulfur.
  • the method has the advantages of good sulfur removal selectivity, high efficiency, continuous process, energy-saving environment friendly and easy industrial production;
  • the entire production system does not add any chemical additives, the subsequent cyclone removes the volatile substances in the recycled rubber, and the co-directional full-mesh twin-screw cooling extruder combines the rear-stage filtration device to provide closed continuous cooling. Prevent the superheated rubber from overheating, oxidize and filter out large particles of impurities, complete sulfur and other substances, and the finished product is granulated and packed into the warehouse by granulator.
  • the production system is fully automated and continuous production, and the production process and products are green and environmentally friendly. The strength, production and maintenance cost are low, the equipment structure is simple, the floor space is small, and the automatic control is realized, and the fully enclosed production from raw materials to finished products is realized, and the application prospect is broad in the future.
  • Figure 1 is a schematic view of the structure of the present invention.
  • Figure 2 is a partial enlarged view of a grinding disc type waste rubber recovery reactor.
  • a waste rubber green recovery and regeneration integrated production system comprises a feed plasticizing device, a grinding disc type waste rubber recovery reactor, a cyclone separator, a cooling mixed filtering device, and a granulation packaging device, wherein:
  • the feeding plasticizing device comprises a barrel 11 provided with a central axis in a horizontal direction, the barrel 11 is supported by a support 8, a feeding port is arranged on the left side of the barrel 11, and a stirring screw feeding is arranged on the feeding port.
  • the right end of the barrel 11 is set as a discharge port 12, and a single screw 9 coaxial with the barrel 11 is mounted in the barrel 11, and a drive motor 1 is mounted on the left end of the barrel 11, and the output shaft and the single screw of the drive motor 1 are mounted.
  • 9 left end of the central axis drive connection, the top and bottom of the right side of the barrel 11 are also closely attached to the electromagnetic heating device 10;
  • the grinding disc type waste rubber recovery reactor comprises a casing 45, the top of the casing 45 is provided with a feeding port 13, and the top feeding port 13 of the casing 45 receives the discharging 12 of the barrel 1 of the feeding plasticizing device, the casing
  • the side of the 45 is provided with a cooling water inlet 41 and a cooling water outlet 40.
  • the other side of the casing 45 is provided with a discharge port 18, and the casing 45 is provided with a horizontal fixing plate 43.
  • the fixed plate 43 is horizontally mounted by a rotating shaft.
  • the grinding disc 17 is driven to extend downwardly to the lower portion of the fixed disc 43.
  • the centering slot 17 is provided with a dispensing cone 44 through the center slot.
  • the casing 45 is fixedly disposed above the moving disc and is horizontally fixed.
  • the fixed grinding disc 16 and the moving grinding disc 17 are opposite to each other with a gap therebetween.
  • the center of the fixed grinding disc 16 is provided with a central slot for the feeding cone to pass through, and the feeding port 13 at the top of the casing 45 extends downward to the dividing cone 44.
  • the adjusting nut 14 is mounted outside the extending portion of the feeding port 13.
  • the bottom of the casing 45 is provided with a driving motor 38, a speed reducer 37, and a coupling 39.
  • the driving motor 38 sequentially passes through the reducer 37 and the coupling. 39 is connected to the lower end of the rotating shaft of the moving disc 17 , and the scraping blade 4 is fixedly mounted on the rotating shaft below the fixed disc 43 . 2, and the position of the discharge port on the side of the casing 45 corresponds to the scraping blade 42;
  • the cyclone separator includes a body 21, and the upper end of the body 21 is covered with an upper cover 20, and the upper cover 20 is mounted thereon. There is an air outlet 19 communicating with the inside of the body 21, and an inlet port is provided on the upper side of the body 21, and the inlet of the body 21 receives the discharge port 18 on the side of the casing 45 of the disc-type waste rubber recovery reactor.
  • the lower end of 21 is provided with a discharge port 22;
  • the cooling and mixing filter device comprises a barrel 24 with a central axis in the horizontal direction of the left and right.
  • the top left side of the barrel 24 is provided with a feeding port 23, and the top feeding port 23 of the barrel 24 receives the outlet 22 of the lower end of the cyclone body 21,
  • a filter device is connected to the right end of the barrel, and a discharge port 34 is arranged at the right end of the filter device.
  • the twin-screw 26 is mounted on the barrel 24 with a common central axis of the barrel 24.
  • the left end of the barrel 24 is provided with a drive motor 36 and a reducer 35. , the drive motor 36 is connected to the left end of the twin screw 26 through the reducer 35, the top and bottom of the right side of the barrel 24 are also closely arranged with a cooling device 25;
  • the granulation packaging device comprises a frame 31, and the granulator 29 driven by the driving motor 30 is arranged on the frame 31, and the feeding port of the granulator 29 receives the discharge port 34 of the filtering device in the cooling mixing filter device.
  • the lower end of the granulator 29 is referred to as a finished product outlet 33, and the finished package device 32 for receiving the finished product outlet 33 is disposed below the granulator 29 in the frame 31.
  • the stirring screw feeding device in the feeding plasticizing device comprises a hopper 6, the lower end of the hopper 6 is fed with the feeding port of the feeding plasticizing device, the upper end of the hopper 6 is covered with the hopper cover 5, and the hopper cover 5 is provided with the feeding port 2
  • the stirring hopper 7 vertically extending into the hopper 6 is installed in the hopper cover 5, and the stirring hopper 3 and the cycloidal pinwheel reducer 4 are arranged at the top of the hopper cover 5, and the stirring motor 3 passes through the cycloidal pinwheel reducer 4 and The upper end of the stirring screw 7 is connected.
  • the upper section of the agitating screw 7 is provided with a fan-shaped stirring blade, and the lower section is provided with a spiral, and the spiral gradually becomes smaller from the top to the bottom.
  • the dynamic grinding disc 17 and the fixed grinding disc 16 are horizontally discharged, which is more uniform than the vertical grinding disc, and the cooling disc 15 and the fixed grinding disc 16 are respectively provided with cooling discs 15 and scraping materials.
  • the vanes 42 are arranged in a trapezoidal shape to function as a self-cleaning material.
  • the surface of the cooling plate 15 in contact with the fixed grinding disc 16 or the moving grinding disc 17 is provided with a serpentine groove, which is advantageous for extending the contact time of the cooling water with the grinding disc.
  • the air outlet 19 of the upper cover 20 of the upper end of the body 21 can reduce the pressure in the rear section to cool the mixing filter device.
  • the filtering device comprises a front section screen 27 and a rear section orifice 28, and the material is extruded and filtered from the screen 27 to the orifice plate 28.
  • the orifice plate 28 functions as a fixed screen 27 and is subjected to twin screw 26 extrusion. The pressure of the material.
  • An integrated production method for waste rubber green recovery and regeneration comprising the following steps:
  • the recovered waste tires are crushed and separated by a fully automated crushing linkage line to obtain 1-8 mm rubber particles, which are sent to the feeding port of the feeding plasticizing device through the silo, and the rubber particles are conveyed by the stirring screw to the feeding plastic.
  • the feeding speed is 100-400kg / h
  • the stirring screw speed is 100-200r / min
  • the single screw speed is 200-400r / min
  • electromagnetic The heating temperature is 50-100 ° C
  • the first-stage transportation plasticizing treatment time is 3-5 min;
  • the plasticized material is conveyed through the feeding port of the feeding plasticizing device into the feeding port of the grinding disc type waste rubber recovery reactor, and then enters between the fixed grinding disc and the moving grinding disc through the feeding cone.
  • the dynamic grinding disc is driven by the grinding disc type waste rubber recovery reactor driven motor to rotate and the material is subjected to spiral extrusion, hoop shearing and stretching.
  • the material is ground into powder and the secondary green sulfur is also realized.
  • Regeneration the rotational speed of the dynamic grinding disc is controlled at 300-400r/min, the temperature is controlled at 150-190 °C by the gap between the cooling plate cooling structure and the grinding disc, and the regenerated material is sent to the grinding disc type waste rubber recovery reactor by the scraping blade rotation.
  • step (3) The recycled material discharged through the step (2) enters the cyclone through the closed passage, and the exhaust gas generated in the regeneration process is sent from the upper exhaust port to the exhaust gas treatment system, and the recycled material passes through the lower end of the cyclone discharge port. discharge;
  • the reclaimed rubber discharged from the outlet of the cyclone separator enters the feed port of the cooling and mixing filter through the closed passage, and is cooled by the cooling device to 50-60 ° C during the conveying and mixing process by the twin-screw, with the aid of the twin-screw
  • the driving force is such that the cooled reclaimed rubber crude product is passed through a filtering device to remove impurities such as steel wires and incompletely regenerated particulate matter to obtain a desired reclaimed rubber semi-finished product, and the twin screw rotation speed is controlled at 130-270 r/min;
  • the filtered semi-finished rubber products are processed by a granulation packaging device to realize automatic granulation and packaging to obtain recycled rubber products.
  • the rubber particle size is preferably 2-4 mm, the electromagnetic heating temperature is optimally 75 ° C, the feeding speed is optimally 200 kg/h, the stirring spiral rotation speed is optimally 146 r/min, and the single screw rotation speed is optimally 320r/min, the dynamic grinding disc speed is optimally 365r/min, and the twin screw speed is optimally 210r/min.
  • the working principle of the invention the rubber particles obtained by crushing and separating the waste tires are sent to the feeding port 2 of the feeding plasticizing device by the air, and are sent to the feeding plasticizing device barrel 11 by means of the stirring screw 7 controlled by the stirring motor 3.
  • the shear mixing and the preheating of the electromagnetic heating device 10 through the single screw 9 conveying process are combined to realize the first-stage transportation plasticization, and the process realizes uniform preheating of the rubber compound and partial (15%) sulfur breaking.
  • the rubber material enters the grinding disc type waste rubber recovery reactor feed port 13 through the discharge port 12, and then enters the fixed grinding disc through the dispensing cone 44.
  • the moving disc 17 is rotated by the grinding disc type waste rubber recovery reactor driving motor 38, and the material is subjected to spiral pressing, hoop shearing, stretching, etc., and the material is ground into powder.
  • the temperature of the rubber compound reaches 150-190 °C, and the three-dimensional network structure is selectively destroyed, and the secondary green sulfur-reducing regeneration is realized.
  • the sulfur regeneration is about 85%, and the obtained reclaimed rubber material is scraped by the blade 42.
  • the lower discharge port 22 is discharged, and then enters the cooling mixing filter feed port 23, and after being uniformly cooled by the cooling device 25 to 50-60 ° C during the conveying and kneading process by the twin-screw 26, the driving force of the twin-screw 26 is utilized.
  • the crude regenerated rubber is passed through a filtering device to remove impurities such as steel wires and incompletely regenerated particulate matter to obtain a semi-finished product of reclaimed rubber.
  • the regenerated rubber semi-finished product after filtration is processed by a granulation packaging device to realize automatic granulation and packaging to obtain recycled rubber products. Library.

Abstract

一种废橡胶绿色复原再生一体化生产系统及方法，系统包括给料塑化装置、磨盘型废橡胶复原反应器、旋风分离器、冷却混合过滤装置、造粒包装装置，方法在无需任何化学助剂的情况下，依靠一级输送塑化、二级磨盘型废橡胶复原反应器断硫、三级冷却混合过滤、四级造粒包装，可实现废旧橡胶颗粒进料到再生橡胶成品包装入库的连续化清洁化生产全过程。设备结构简单且从上往下布置，占地面积小，并且实现PLC控制系统统一管理，整个生产系统实现全密闭式且节能环保，生产过程不添加任何化学助剂，得到产品绿色环保，未来产业化前景广阔。

Description

一种废橡胶绿色复原再生一体化生产系统及方法 技术领域
本发明涉及再生橡胶生产领域，具体是一种废橡胶绿色复原再生一体化生产系统及方法。
背景技术
橡胶是继石油、铁矿石和有色金属等工业原料之后的第四大战略资源，伴随着汽车使用量的快速增加，废旧轮胎的产生量也越来越多，大量的废旧轮胎的堆积不仅易于滋生蚊虫而且会引发火灾，对人类环境带来严重的危害。在我国，天然橡胶和石油资源严重缺乏，因此我国利用废旧橡胶生产再生橡胶来部分替代生胶来环境橡胶资源短缺问题已成为一种重要手段，同时再生橡胶已成为继天然橡胶和合成橡胶外的第三大橡胶资源。
近年来，我国生产再生橡胶的方法经历了油法、水油法、高温高压动态脱硫法、常压塑化法一系列发展过程，这些方法未从根源上彻底摆脱化学法脱硫的方式，或多或少存在高污染、高能耗、间歇生产、劳动强度大且产品性能不稳定的问题，在取得巨大成绩的同时也直接导致了资源与环境付出了惨重的代价，因此急需寻求一种新的无任何化学助剂的废旧橡胶绿色再生新方法来替代传统化学法再生工艺，彻底解决再生橡胶生产过程和产品的环保性的问题，最终促进带动整个废橡胶综合利用行业的发展。
发明内容
本发明的目的是提供一种废橡胶绿色复原再生一体化生产系统及方法，以解决现有技术传统化学法再生高污染、高能耗、间歇、劳动强度大且产品性能不稳定等缺陷及传统机械再生方法温度难以控制且产品质量不稳定的缺点。
为了达到上述目的，本发明所采用的技术方案为：
一种废橡胶绿色复原再生一体化生产系统，其特征在于：包括给料塑化装置、磨盘型废橡胶复原反应器、旋风分离器、冷却混合过滤装置、造粒包装装置，其中：
所述给料塑化装置包括中心轴沿左右水平方向设置的机筒，机筒顶部左侧设有进料口，进料口上安装有搅拌螺旋进料装置，机筒右端设为出料口，机筒内转动安装有与机筒共中心轴的单螺杆，机筒左端安装有驱动电机，所述驱动电机输 出轴与单螺杆左端共中心轴传动连接，机筒右侧顶部、底部还分别紧贴设置有电磁加热装置；
所述磨盘型废橡胶复原反应器包括机壳，机壳顶部设有进料口，且机壳顶部进料口承接给料塑化装置中机筒的出料口，机壳一侧设有冷却水入口和冷却水出口，机壳另一侧设有出料口，机壳内设有水平的固定盘，固定盘上通过转轴转动安装有水平的动磨盘，且转轴向下延伸至固定盘下方，动磨盘中间通过中心槽孔设有分料锥，机壳内位于动磨盘正上方还固定设置有水平的定磨盘，定磨盘、动磨盘相对且之间有间隙，定磨盘中心设有供分料锥穿出的中心槽孔，所述机壳顶部的进料口向下延伸至分料锥处，机壳内底部设有驱动电机、减速机、联轴器，所述驱动电机依次通过减速机、联轴器与动磨盘的转轴下端传动连接，位于固定盘下方的转轴上还固定安装有刮料叶片，且机壳侧部的出料口位置与刮料叶片对应；
所述旋风分离器包括机体，机体上端盖合安装有上盖，上盖上安装有与机体内连通的出风口，机体一侧上部设有进料口，且机体的进料口承接磨盘型废橡胶复原反应器中机壳侧部的出料口，机体下端设有出料口；
所述冷却混合过滤装置包括中心轴沿左右水平方向的机筒，机筒顶部左侧设有进料口，且机筒顶部进料口承接旋风分离器机体下端出料口，机筒右端连接有过滤装置，过滤装置右端设有出料口，机筒内转动安装有与机筒共中心轴的双螺杆，机筒左端设有驱动电机、减速器，且驱动电机通过减速器与双螺杆左端传动连接，机筒右侧顶部、底部还分别紧贴设置有冷却装置；
所述造粒包装装置包括机架，机架上设有由驱动电机驱动的造粒机，且造粒机的进料口承接冷却混合过滤装置中过滤装置的出料口，造粒机下端设为成品出口，机架中位于造粒机下方设有承接成品出口的成品包装装置。
所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述给料塑化装置中搅拌螺旋进料装置包括料斗，料斗下端承接给料塑化装置的进料口，料斗上端盖合安装有料斗盖，料斗盖中开有进料口，料斗盖中转动安装有竖直伸入料斗内的搅拌螺旋，料斗盖顶部设有搅拌电机、摆线针轮减速器，所述搅拌电机通过摆线针轮减速器与搅拌螺旋上端传动连接。
所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述搅拌螺 旋的上段设有扇形搅拌叶片，下段设有螺旋，螺旋从上往下由大逐渐变小。
所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述磨盘型废橡胶复原反应器中，动磨盘与定磨盘呈横式排放，相比立式磨盘出料更均匀，动磨盘与定磨盘上下两端分别设有冷却盘，刮料叶片设置为梯形，起到自清洁物料的作用。
所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述冷却盘与定磨盘或动磨盘接触的表面内部设有蛇形沟槽，有利于延长冷却水与磨盘的接触时间。
所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述旋风分离器中，机体上端上盖的出风口可减小后段冷却混合过滤装置内的压力。
所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述冷却混合过滤装置中，过滤装置包括前段滤网和后段孔板，物料从滤网到孔板挤出过滤，孔板起到固定滤网作用并承受双螺杆挤出物料的压力。
所述系统的废橡胶绿色复原再生一体化生产方法，其特征在于：包括以下步骤：
(1)、将回收的废旧轮胎经全自动化破碎联动线破碎分离得到1-8mm的橡胶颗粒，通过料仓风送至给料塑化装置进料口，橡胶颗粒受到搅拌螺旋输送至给料塑化装置内，并经过单螺杆输送和电磁加热装置实现一级输送塑化，送料速度为100-400kg/h，搅拌螺旋转速为100-200r/min，单螺杆转速为200-400r/min，电磁加热温度为50-100℃，一级输送塑化处理时间为3-5min；
(2)、经步骤(1)一级输送塑化物料通过给料塑化装置出料口进入磨盘型废橡胶复原反应器进料口，然后经分料锥进入定磨盘和动磨盘之间，动磨盘受到磨盘型废橡胶复原反应器驱动电机的带动下旋转并对物料进行螺旋式挤压、环向剪切、拉伸作用，将物料磨成粉状的同时也实现了二级绿色断硫再生，动磨盘转速控制在300-400r/min，依靠冷却盘冷却结构和磨盘之间的间隙将温度控制在150-190℃，再生的物料经刮料叶片旋转送至磨盘型废橡胶复原反应器出料口；
(3)、经步骤(2)排出的再生物料通过封闭的通道进入旋风分离器，将再生过程产生的废气从上端排气口送至废气处理系统，再生物料则经过旋风分离器下端出料口排出；
(4)、旋风分离器出料口排出的再生橡胶通过封闭通道进入冷却混合过滤装置进料口，经过双螺杆在输送和混炼过程中受到冷却装置冷却至50-60℃后，借助双螺杆的推动力使冷却再生橡胶粗品经过过滤装置除去钢丝等杂质及未完全再生的颗粒物后得到所需再生橡胶半成品，双螺杆转速控制在130-270r/min；
(5)、过滤后的再生橡胶半成品经过造粒包装装置处理，实现自动造粒包装得到再生橡胶成品。
所述的废橡胶绿色复原再生一体化生产方法，其特征在于：所述橡胶颗粒尺寸优选2-4mm，所述电磁加热温度最优为75℃，所述送料速度最优为200kg/h，所述搅拌螺旋转速最优为146r/min，所述单螺杆转速最优为320r/min，所述动磨盘转速最优为365r/min，所述双螺杆转速最优为210r/min。
本发明的优点是：
1.本发明工艺的原料采用2-4mm的橡胶颗粒目的是橡胶颗粒易受到机械的挤压和剪切作用产生相应的剪切力，与国内所有废橡胶再生均采用20目以上胶粉为原料的工艺相比，每吨原料可节省200度电能耗；
2.本发明采用一级输送塑化与二级磨盘型废橡胶复原反应器断硫相结合工艺，有效避免了单独磨盘型废橡胶复原反应器难以迅速达到所需废橡胶断硫再生的温度的缺陷，并且一级的输送塑化可将橡胶颗粒升温初步软化后防止橡胶颗粒引起二级磨盘型废橡胶复原反应器的堵塞；
3.鉴于S-S键的键能小于C-S键的键能小于C-C键的键能且其之间化学键键能比较接近，磨盘型废橡胶复原反应器内部磨盘呈现横式，相比立式磨盘出料更加均匀，其运动轨迹为螺旋状态，物料从进料到出料经过的路径相比传统机械再生设备要长，有利于延长断硫再生反应时间，橡胶颗粒在反应器中受到磨盘的强大的三维剪切环向应力挤压、拉伸、摩擦、变形等作用首先磨成比表面积更大的粉状，同时通过控制剪切力的大小和借助内部有环形通道的冷却盘控制反应温度优先完成S-S键和C-S键的断裂，破坏废橡胶的三维网络结构而发生力化学断硫，该方法具有断硫选择性好及效率高、工艺连续、节能环境友好且易于工业化生产等优势；
4.整个生产系统不添加任何化学助剂，后续旋风分离器除去再生橡胶中易挥发的物质，同向全啮合双螺杆冷却挤出机结合后段过滤装置起到密闭连续冷却 防止再生橡胶过热发生氧化并滤除大颗粒杂质、未断硫完全等物质，得到的成品经造粒机造粒包装入库，该生产系统全自动化连续化生产且生产过程及产品绿色环保，劳动强度、生产及维护成本低，设备结构简单，占地面积小，全自动化控制，实现了从原料到成品的全密闭一体化生产，未来应用前景广阔。
附图说明
图1为本发明的结构示意图。
图2为磨盘型废橡胶复原反应器局部放大图。
具体实施方式
如图1所示，一种废橡胶绿色复原再生一体化生产系统，包括给料塑化装置、磨盘型废橡胶复原反应器、旋风分离器、冷却混合过滤装置、造粒包装装置，其中：
所述给料塑化装置包括中心轴沿左右水平方向设置的机筒11，机筒11由支座8支撑，机筒11顶部左侧设有进料口，进料口上安装有搅拌螺旋进料装置，机筒11右端设为出料口12，机筒11内转动安装有与机筒11共中心轴的单螺杆9，机筒11左端安装有驱动电机1，驱动电机1输出轴与单螺杆9左端共中心轴传动连接，机筒11右侧顶部、底部还分别紧贴设置有电磁加热装置10；
磨盘型废橡胶复原反应器包括机壳45，机壳45顶部设有进料口13，且机壳45顶部进料口13承接给料塑化装置中机筒1的出料12口，机壳45一侧设有冷却水入口41和冷却水出口40，机壳45另一侧设有出料口18，机壳45内设有水平的固定盘43，固定盘43上通过转轴转动安装有水平的动磨盘17，且转轴向下延伸至固定盘43下方，动磨盘17中间通过中心槽孔设有分料锥44，机壳45内位于动磨盘正上方还固定设置有水平的定磨盘16，定磨盘16、动磨盘17相对且之间有间隙，定磨盘16中心设有供分料锥穿出的中心槽孔，机壳45顶部的进料口13向下延伸至分料锥44处，且进料口13向下的延伸部外安装有调整螺母14，机壳45内底部设有驱动电机38、减速机37、联轴器39，驱动电机38依次通过减速机37、联轴器39与动磨盘17的转轴下端传动连接，位于固定盘43下方的转轴上还固定安装有刮料叶片42，且机壳45侧部的出料口位置与刮料叶片42对应；
旋风分离器包括机体21，机体21上端盖合安装有上盖20，上盖20上安装 有与机体21内连通的出风口19，机体21一侧上部设有进料口，且机体21的进料口承接磨盘型废橡胶复原反应器中机壳45侧部的出料口18，机体21下端设有出料口22；
冷却混合过滤装置包括中心轴沿左右水平方向的机筒24，机筒24顶部左侧设有进料口23，且机筒24顶部进料口23承接旋风分离器机体21下端出料口22，机筒右端连接有过滤装置，过滤装置右端设有出料口34，机筒24内转动安装有与机筒24共中心轴的双螺杆26，机筒24左端设有驱动电机36、减速器35，且驱动电机36通过减速器35与双螺杆26左端传动连接，机筒24右侧顶部、底部还分别紧贴设置有冷却装置25；
造粒包装装置包括机架31，机架31上设有由驱动电机30驱动的造粒机29，且造粒机29的进料口承接冷却混合过滤装置中过滤装置的出料口34，造粒机29下端设为成品出口33，机架31中位于造粒机29下方设有承接成品出口33的成品包装装置32。
给料塑化装置中搅拌螺旋进料装置包括料斗6，料斗6下端承接给料塑化装置的进料口，料斗6上端盖合安装有料斗盖5，料斗盖5中开有进料口2，料斗盖5中转动安装有竖直伸入料斗6内的搅拌螺旋7，料斗盖5顶部设有搅拌电机3、摆线针轮减速器4，搅拌电机3通过摆线针轮减速器4与搅拌螺旋7上端传动连接。
搅拌螺旋7的上段设有扇形搅拌叶片，下段设有螺旋，螺旋从上往下由大逐渐变小。
磨盘型废橡胶复原反应器中，动磨盘17与定磨盘16呈横式排放，相比立式磨盘出料更均匀，动磨盘17与定磨盘16上下两端分别设有冷却盘15，刮料叶片42设置为梯形，起到自清洁物料的作用。
冷却盘15与定磨盘16或动磨盘17接触的表面内部设有蛇形沟槽，有利于延长冷却水与磨盘的接触时间。
旋风分离器中，机体21上端上盖20的出风口19可减小后段冷却混合过滤装置内的压力。
冷却混合过滤装置中，过滤装置包括前段滤网27和后段孔板28，物料从滤网27到孔板28挤出过滤，孔板28起到固定滤网27作用并承受双螺杆26挤出 物料的压力。
一种废橡胶绿色复原再生一体化生产方法，包括以下步骤：
(1)、将回收的废旧轮胎经全自动化破碎联动线破碎分离得到1-8mm的橡胶颗粒，通过料仓风送至给料塑化装置进料口，橡胶颗粒受到搅拌螺旋输送至给料塑化装置内，并经过单螺杆输送和电磁加热装置实现一级输送塑化，送料速度为100-400kg/h，搅拌螺旋转速为100-200r/min，单螺杆转速为200-400r/min，电磁加热温度为50-100℃，一级输送塑化处理时间为3-5min；
(2)、经步骤(1)一级输送塑化物料通过给料塑化装置出料口进入磨盘型废橡胶复原反应器进料口，然后经分料锥进入定磨盘和动磨盘之间，动磨盘受到磨盘型废橡胶复原反应器驱动电机的带动下旋转并对物料进行螺旋式挤压、环向剪切、拉伸作用，将物料磨成粉状的同时也实现了二级绿色断硫再生，动磨盘转速控制在300-400r/min，依靠冷却盘冷却结构和磨盘之间的间隙将温度控制在150-190℃，再生的物料经刮料叶片旋转送至磨盘型废橡胶复原反应器出料口；
(3)、经步骤(2)排出的再生物料通过封闭的通道进入旋风分离器，将再生过程产生的废气从上端排气口送至废气处理系统，再生物料则经过旋风分离器下端出料口排出；
(4)、旋风分离器出料口排出的再生橡胶通过封闭通道进入冷却混合过滤装置进料口，经过双螺杆在输送和混炼过程中受到冷却装置冷却至50-60℃后，借助双螺杆的推动力使冷却再生橡胶粗品经过过滤装置除去钢丝等杂质及未完全再生的颗粒物后得到所需再生橡胶半成品，双螺杆转速控制在130-270r/min；
(5)、过滤后的再生橡胶半成品经过造粒包装装置处理，实现自动造粒包装得到再生橡胶成品。
橡胶颗粒尺寸优选2-4mm，所述电磁加热温度最优为75℃，所述送料速度最优为200kg/h，所述搅拌螺旋转速最优为146r/min，所述单螺杆转速最优为320r/min，所述动磨盘转速最优为365r/min，所述双螺杆转速最优为210r/min。
本发明其工作原理：废旧轮胎经破碎分离得到的橡胶颗粒，通过风送至给料塑化装置进料口2，借助于搅拌电机3控制的搅拌螺旋7输送至给料塑化装置机筒11内，在其内部经过单螺杆9输送过程的剪切混炼及电磁加热装置10预热共同作用实现一级输送塑化，此过程实现了胶料的均匀预热和部分(15％)断硫再 生的效果；经给料塑化装置一级输送塑化处理3-5min后，胶料通过出料口12进入磨盘型废橡胶复原反应器进料口13，然后经分料锥44进入定磨盘16和动磨盘17之间，动磨盘17受到磨盘型废橡胶复原反应器驱动电机38的带动下旋转并对物料进行螺旋式挤压、环向剪切、拉伸等作用，将物料磨成粉状的同时也使得胶料温度达到150-190℃，选择性破坏其三维网络结构，实现了二级绿色断硫再生，该阶段断硫再生85％左右，得到的再生胶料经刮料叶片42旋转送至磨盘型废橡胶复原反应器出料口18，再通过封闭的通道进入旋风分离器机体21内，将再生过程产生的废气从上端出风口19送至废气处理系统，再生物料经旋风分离器下端出料口22排出，接着进入冷却混合过滤装置进料口23，经过双螺杆26在输送和混炼过程中受到冷却装置25均匀冷却至50-60℃后，借助双螺杆26的推动力使冷却再生橡胶粗品经过过滤装置除去钢丝等杂质及未完全再生的颗粒物后得到所需再生橡胶半成品，最后过滤后的再生橡胶半成品经过造粒包装装置处理，实现自动造粒包装得到再生橡胶成品入库。

Claims (9)

  1. 一种废橡胶绿色复原再生一体化生产系统，其特征在于：包括给料塑化装置、磨盘型废橡胶复原反应器、旋风分离器、冷却混合过滤装置、造粒包装装置，其中：
    所述给料塑化装置包括中心轴沿左右水平方向设置的机筒，机筒顶部左侧设有进料口，进料口上安装有搅拌螺旋进料装置，机筒右端设为出料口，机筒内转动安装有与机筒共中心轴的单螺杆，机筒左端安装有驱动电机，所述驱动电机输出轴与单螺杆左端共中心轴传动连接，机筒右侧顶部、底部还分别紧贴设置有电磁加热装置；
    所述磨盘型废橡胶复原反应器包括机壳，机壳顶部设有进料口，且机壳顶部进料口承接给料塑化装置中机筒的出料口，机壳一侧设有冷却水入口和冷却水出口，机壳另一侧设有出料口，机壳内设有水平的固定盘，固定盘上通过转轴转动安装有水平的动磨盘，且转轴向下延伸至固定盘下方，动磨盘中间通过中心槽孔设有分料锥，机壳内位于动磨盘正上方还固定设置有水平的定磨盘，定磨盘、动磨盘相对且之间有间隙，定磨盘中心设有供分料锥穿出的中心槽孔，所述机壳顶部的进料口向下延伸至分料锥处，机壳内底部设有驱动电机、减速机、联轴器，所述驱动电机依次通过减速机、联轴器与动磨盘的转轴下端传动连接，位于固定盘下方的转轴上还固定安装有刮料叶片，且机壳侧部的出料口位置与刮料叶片对应；
    所述旋风分离器包括机体，机体上端盖合安装有上盖，上盖上安装有与机体内连通的出风口，机体一侧上部设有进料口，且机体的进料口承接磨盘型废橡胶复原反应器中机壳侧部的出料口，机体下端设有出料口；
    所述冷却混合过滤装置包括中心轴沿左右水平方向的机筒，机筒顶部左侧设有进料口，且机筒顶部进料口承接旋风分离器机体下端出料口，机筒右端连接有过滤装置，过滤装置右端设有出料口，机筒内转动安装有与机筒共中心轴的双螺杆，机筒左端设有驱动电机、减速器，且驱动电机通过减速器与双螺杆左端传动连接，机筒右侧顶部、底部还分别紧贴设置有冷却装置；
    所述造粒包装装置包括机架，机架上设有由驱动电机驱动的造粒机，且造粒机的进料口承接冷却混合过滤装置中过滤装置的出料口，造粒机下端设为成品出口，机架中位于造粒机下方设有承接成品出口的成品包装装置。
  2. 根据权利要求1所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述给料塑化装置中搅拌螺旋进料装置包括料斗，料斗下端承接给料塑化装置的进料口，料斗上端盖合安装有料斗盖，料斗盖中开有进料口，料斗盖中转动安装有竖直伸入料斗内的搅拌螺旋，料斗盖顶部设有搅拌电机、摆线针轮减速器，所述搅拌电机通过摆线针轮减速器与搅拌螺旋上端传动连接。
  3. 根据权利要求2所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述搅拌螺旋的上段设有扇形搅拌叶片，下段设有螺旋，螺旋从上往下由大逐渐变小。
  4. 根据权利要求1所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述磨盘型废橡胶复原反应器中，动磨盘与定磨盘呈横式排放，相比立式磨盘出料更均匀，动磨盘与定磨盘上下两端分别设有冷却盘，刮料叶片设置为梯形，起到自清洁物料的作用。
  5. 根据权利要求4所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述冷却盘与定磨盘或动磨盘接触的表面内部设有蛇形沟槽，有利于延长冷却水与磨盘的接触时间。
  6. 根据权利要求1所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述旋风分离器中，机体上端上盖的出风口可减小后段冷却混合过滤装置内的压力。
  7. 根据权利要求1所述的一种废橡胶绿色复原再生一体化生产系统，其特征在于：所述冷却混合过滤装置中，过滤装置包括前段滤网和后段孔板，物料从滤网到孔板挤出过滤，孔板起到固定滤网作用并承受双螺杆挤出物料的压力。
  8. 基于权利要求1所述系统的废橡胶绿色复原再生一体化生产方法，其特征在于：包括以下步骤：
    (1)、将回收的废旧轮胎经全自动化破碎联动线破碎分离得到1-8mm的橡胶颗粒，通过料仓风送至给料塑化装置进料口，橡胶颗粒受到搅拌螺旋输送至给料塑化装置内，并经过单螺杆输送和电磁加热装置实现一级输送塑化，送料速度为100-400kg/h，搅拌螺旋转速为100-200r/min，单螺杆转速为200-400r/min，电磁加热温度为50-100℃，一级输送塑化处理时间为3-5min；
    (2)、经步骤(1)一级输送塑化物料通过给料塑化装置出料口进入磨盘型 废橡胶复原反应器进料口，然后经分料锥进入定磨盘和动磨盘之间，动磨盘受到磨盘型废橡胶复原反应器驱动电机的带动下旋转并对物料进行螺旋式挤压、环向剪切、拉伸作用，将物料磨成粉状的同时也实现了二级绿色断硫再生，动磨盘转速控制在300-400r/min，依靠冷却盘冷却结构和磨盘之间的间隙将温度控制在150-190℃，再生的物料经刮料叶片旋转送至磨盘型废橡胶复原反应器出料口；
    (3)、经步骤(2)排出的再生物料通过封闭的通道进入旋风分离器，将再生过程产生的废气从上端排气口送至废气处理系统，再生物料则经过旋风分离器下端出料口排出；
    (4)、旋风分离器出料口排出的再生橡胶通过封闭通道进入冷却混合过滤装置进料口，经过双螺杆在输送和混炼过程中受到冷却装置冷却至50-60℃后，借助双螺杆的推动力使冷却再生橡胶粗品经过过滤装置除去钢丝等杂质及未完全再生的颗粒物后得到所需再生橡胶半成品，双螺杆转速控制在130-270r/min；
    (5)、过滤后的再生橡胶半成品经过造粒包装装置处理，实现自动造粒包装得到再生橡胶成品。
  9. 根据权利要求8所述的废橡胶绿色复原再生一体化生产方法，其特征在于：所述橡胶颗粒尺寸优选2-4mm，所述电磁加热温度最优为75℃，所述送料速度最优为200kg/h，所述搅拌螺旋转速最优为146r/min，所述单螺杆转速最优为320r/min，所述动磨盘转速最优为365r/min，所述双螺杆转速最优为210r/min。
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