HRM 型 立 式 磨

 

 

 

 

 

 

 

                 

地    址：江苏省海安县大公镇工业园区

电    话：13511572088           邮    箱:wqgpf2009@163.com

微   信 ：13511572088         邮    编： 226623                       

网    址: www.pengfeichina.com.cn

目         录

 

 

 

一、  概     述

 

二、  技术参数表

 

三、  工作原理          

      

四、  工艺流程

 

五、  安装试运转及操作、维护

 

六、  主要液压润滑设备、润滑油品目录

 

七、  轴承目录

 

八、  服务

 

 

 

 

 

 

 

 

 

HRM型立式磨是江苏鹏飞集团股份有限公司跟国内大院大所密切合作，广泛吸受国外立磨先进技术，总结多年的实践经验，研究、设计、制造的一种高效、节能、环保的烘干兼粉磨设备，它集烘干、粉磨、选粉、输送为一体，具有适应性广、粉磨效率高、电耗低、磨耗小、烘干能力大、产品细度调节方便，工艺流程简单、噪音低、粉尘污染小、运行可靠、维修方便等优点。近年来，在水泥生料、煤粉制备，电厂磨煤及脱硫石粉制备，矿渣粉磨，化工行业膨润土及磷矿粉磨，冶金行业，超细粉磨行业等等许多领域，得到了非常广泛的应用。鹏飞牌HRM型立磨以其质量优良、工艺技术先进、使用性能好、服务优良、羸得了越来越多的用户青睐。

注：原料易磨性（Bond）指数≤12kwh/t。

 

注：1.原煤哈氏可磨指数≥60；2.可用于粉磨无烟煤，煤粉细度（R0.08）≤3%。

注：原煤哈氏可磨指数≥60。

 

注：石灰石易磨性（Bond）指数≤12kwh/t。

 

注：以上技术指标以莫氏硬度3-4的物料为基准。

 

注：本样本表格内数据仅供选型参考，设备保证指标以签订合同为准。

1、HRM型原料立式磨主要结构见下图：

1、选粉装置2、中壳体3、磨辊装置4、传动臂5、限位装置

6、下壳体7、传动装置8、液压系统9、副油缸

2、工作原理如下：电动机通过减速机带动磨盘转动。物料从进料口落在磨盘中央，同时热风从进风口进入磨内，在离心力的作用下，物料向磨盘边缘移动，经过磨盘上的环形槽时受到磨辊的碾压而粉碎，粉碎后的物料在磨盘边缘被风环处高速气流带起，大颗粒直接落到磨盘上重新粉磨，气流中的物料经过分离器时，在旋转转子的作用下，粗粉落到磨盘重新粉磨，合格细粉随气流一起出磨，在收尘装置中收集，即为产品。含有水分的物料在与热气体的接触过程中被烘干，达到所要求的产品水分。

3、特  点

（1）物料主要是依靠磨辊的重量和加压装置的压力被破碎和粉磨的，在粉磨过程中物料始终受到磨辊的压力作用，而磨辊和磨盘间不是纯滚动，物料受到的是多向应力的作用，因此提高了磨机的粉磨能力和粉磨效率。

（2）由于物料进入磨机后就与热气体充分接触，被粉磨后又悬浮在热气中，能充分地进行热将交换。在粉磨的同时也烘干了物料。

（3）磨辊的碾磨压力由液压系统提供，通过加压装置、传动装置传给磨辊而施加 在物料上，通过调节液压系统的压力，来改变粉磨压力的大小以满足粉磨不同硬度物料的要求。

（4）为了避免磨机工作时因断料磨辊与磨盘的直接接触而造成的剧烈震动，磨辊和磨盘之间应有一定的间隙，因此，特别设计了控制间隙大小的限位装置，并通过限位装置可随时了解磨辊下物料的厚度，因此保证了磨机在安全和经济的工作条件下运行。

（5）辊套和磨盘衬板采用了高硬度合金耐磨材料，磨损小，寿命长，而且当辊套磨损到一定程度时，还可翻面使用，从而延长辊套的使用寿命。

（6）磨辊能借助于辅助油缸的作用，将其翻出机外，更换检修非常方便。

（7）    磨盘周边上设有防止盘座磨损、调节风环处风速和盘上物料厚度的装置，可确保立式磨的生产能力及其经济运行。

（8）    分离器由变频器电机、减速机构、转子、壳体等部分组成。电机通过减速机构带动分离器转子转动，通过调整电机转速而获得不同细度的产品。

（9）主减速机由稀油站供油产生循环润滑系统，以保证主减速机的正常运行。

HRM型原料立式磨在粉磨系统中的运用主要有以下几种形式，详见工艺流程图一、图二。

 

1.电子皮带秤2.胶带输送机3.电磁除铁器4.回转锁风喂料机5.HRM型立式磨6.外循环提升

7.高效旋风收尘器8.风机风门9.主风机10.气箱脉冲收尘器11.风机风门12.尾排风机

13.螺旋输送机14.循环风阀15.热风阀16.冷风阀

 

 

1.电子皮带称 2.皮带输送机  3.板链提升机  4.回转锁风喂料机  5.HRM型立式磨 6.气箱脉冲收尘器 7.立磨排风机 8. 循环风碟阀  9.冷风蝶阀  10.热风蝶阀  11.电动除铁器

 

工艺流程一的特点：

系统流程较复杂，压力损失较大，风机叶轮磨损大，但第二级收尘器负荷小，系统投资较低，适用于磨蚀性较小的物料。

工艺流程二的特点：

系统流程简单，压力损失小，系统电耗低，但投资相对较大，适用于磨蚀性较大的物料。

（一）安装前的准备

1.      应检查地脚螺栓孔尺寸；

2.      现场清扫；

3.      各地脚孔间按要求放置垫铁，各地脚螺栓放入地脚孔；

4.      水平测量仪、经纬仪、框式水平仪、垫铁；

（二）安装

传动装置安装：首先将主电机和减速机底座准确地落在基础上，用混凝土将地脚螺栓固定，待混凝土凝固后，拧紧螺栓，通过调整垫铁将两底座调平，底座调平后，其纵向及横向水平误差不得超过0.1mm/m，然后进行二次浇灌将底座埋入混凝土。接着安装主电机和减速机，安装后要求主联轴器的两轴中心线倾斜夹角小于0.5度，标高误差小于0.3mm。下壳体及磨盘安装:安装下壳体时应以减速机出轴中心线为其准，两者中心线间的误差不得超过正负1mm，首先将下壳体吊装在基础上，找正中心位置，将地脚螺栓灌浆固定，然后将磨盘轻轻吊装在减速机上，找正并装上定位销，均匀用力拧紧联接螺栓，通过调态下壳体的位置，使磨盘下风环间的径向间隙基本一致，应转动磨盘进行检查，同时检查下壳体上法兰与磨盘上端面间的轴向距离是否满足安装要求，可通过调整垫铁进行调整。然后紧固，通过调整垫铁使下壳体的上法兰平面保持水平。上壳体、磨辊及传动臂的安装：按设备图纸要求将上壳体吊装到下壳体上，找正后均匀用力紧固联接螺栓。将事先组装好的磨辊和传动臂吊装到下壳体机架的轴承座上拧紧轴承座的联接螺栓，然后翻转传动臂，使磨辊轻轻置于磨盘上，再安装磨辊的密封件，安装时应注意密封的严密性。限位装置及分离器的安装：预先组装好限位装置，按设备基础图尺寸要求将其就位，并拧出限位螺栓使其与限位头相接触，找正后对地脚螺栓灌浆将其固定，待砂浆凝固后，拧紧地脚螺栓。然后再拧进限位螺栓，使磨辊与磨盘之间的距离为10mm。接着开始安装分离器，将预先组装好的分离器吊装到上壳体上，均匀用力拧紧联接螺栓，注意法兰接合面要求严格密封。加压装置的安装：将组装好的加压装置按图纸要求就位，与磨机主体相联后找正，将地脚螺栓灌浆固定，砂浆凝固后拧紧螺栓。液压系统及润滑系统的安装：根据设备安装现场的实际情况，备齐液压系统及润滑系统所需的各种油管。用压缩空气吹扫管孔并严格酸洗，分别按要求进行组合及安装。最后对基础进行二次浇灌。

（三）试运转前的准备工作

a、仔细检查各零部件的安装是否正确，有无错装或漏装；

b、仔细清除磨内安装时的遗留物；

c、用手盘动各运转部件，检查是否有任何卡死或金属摩擦现象；

d、将各润滑点按要求注入适量的润滑油或润滑脂；

（四）试运转的操作过程

a、首先关闭液压系统进油总阀，打开卸压阀，空载运行八小时。然后接通油路检查抬辊、落辊情况，检查系统各原件能否正常工作。

b、将润滑系统（稀油站）预先空载运行八小时，检查。

c、将磨辊稍稍抬起离开磨盘，开动主电机和分离器电机，空负荷运行6小时，注意整个运行过程中不应有任何异常声响或现象发生。否则立即停车。分离器转速应由小到大，启动主电机前应点动开关，观察电机转向是否正确。

d、开车前的准备

（1）首先检查磨机各转动部件能否正常运行。各润滑点是否已注入适量润滑油。

（2）其次调整限位装置使磨盘与磨辊的间隙为10mm。

（3）最后对蓄能器充气，其压力大小可参照《蓄能器使用说明书》。将液压系统置于正常工作状态。

e、开车顺序

润滑系统电机（稀油站）——分离器电机——抬辊——主电机——投料落辊————液压系统电机。

f、操作说明：磨机启动后，物料以设定值喂入，操作液压系统落下磨辊，开启液压站油泵电机，调整液压系统的工作压力，使系统达到平衡，同时应调节分离器转子转速，使产品的细度满足要求。（先将分离器转速调到最高值，根据产品细度进行转速的调整）

2、进行上述操作时注意观察主电机电流、主减速机瓦温度小于70度和磨辊轴承温度小于100度。

3、根据物料水份调节入磨气体温度，最高不能高于350度。

4、磨机喂料量、粉磨压力、磨内通风量、分离器转速等要统一考虑，使之处于最佳配合状态。

g、维修内容：运行一段时间后，要检查各处的联接螺栓和固定螺栓有无松动及损坏；检查各密封件及易损件的磨损情况；定期对各润滑点补充润滑油或脂；根据辊套的磨损情况调整衬板与辊套的间隙；磨机在运行500小时后要对主减速机内油放尽并清理干净，更换新油，以后每2000小时检查一次油质，不合标准要求要进行更换；辊套磨损后可翻面使用，再次磨损后必须更换。

立磨液压润滑系统安装说明

1.                    立磨液压润滑系统安装范围：

1）主辊、辅辊液压控制站；主减速机润滑控制站；选粉机主轴轴承润滑控制站。

2）控制站到主机部件之间的全部管路安装。

3）液压系统、润滑系统的管路冲洗。

4）各控制站均可分别安装，直接摆放平台或地坑。

2.                    管路安装：

                   液压系统、润滑系统的管路均采用无缝钢管，连接采用焊接式接头，安装前用煤油清洗管子，然后用洁净，干燥空气吹净。管子必须用弯管机冷弯，不许火焰加热弯曲。弯曲半径不得小于3倍管径。

3.                        系统加油：

加注液压油、润滑油前用面团清洗油箱，加油时应过滤，过滤精度5微米。严禁直接向油箱加油。

 

 

 

 

 

 

 

 

1、可根据物料情况不同，提供全套立磨生产线的工艺技术，设备。

2、可提供免费指导安装，调试。（机械、电器工程师各一人）

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HRM vertical roller mill is a sort of drying and grinding equipment with the characteristics of high efficient, economical energy and environmental protection; it is the equipment made by Jiangsu Pengfei Group Co., Ltd. intimately cooperated with the large institute, widely absorbing the advanced technology of the foreign vertical roller mill and summarizing the years of practical experience and then the vertical roller mill is researched, designed and manufactured. It collects the drying, grinding, separating and conveying as a system. It has the advantages of wide flexibility, high grinding efficiency, low power consumption, small abrasion wear, large drying capacity, convenient adjustment of the fineness of the products, simple process flow, low noise, small dust pollution, reliable operation, convenient maintenance and so on. Recently the vertical roller mill is highly widely used in cement raw meal, coal powder preparation, grinding coal in the power plant, desulphurization stone dust preparation, slag grinding, bentonite and phosphorite grinding for chemical industry, metallurgy industry, over-fine grinding industry and other fields. For its perfect quality, advanced technology, good performance of usage, and the perfect services, “Pengfei” brand HRM vertical roller mill has favored by the more and more users.

Notes: Grindability of the raw material (Bond) index≤12kwh/t.

Notes: 1. Hardgrove grinding index of the crude coal is not less than 60;

2. It can be used to grind the anthracite, and the fineness of the coal powder (R0.08) is not more than 3%.

Notes: Hardgrove grinding index of the crude coal is not less than 60.

 

Notes: Grindability of limestone (Bond) index is not more than 12kwh/t

 

Notes: The above technical index is basis on the material of the MOhs hardness 3-4.

Notes: The data in the table of the stylebook is only provided for the selecting specification reference, the guarantee index of the equipment is basis on the signing contract.

1. The primary structure of HRM raw material vertical roller mill can be seen in the following drawing:

1. Separating device; 2. Middle shell; 3. Grinding roller device; 4. Driving arm; 5. Limit device; 6. Lower shell; 7. Driving device; 8. Hydraulic system; 9. Auxiliary oil cylinder   

2．The operating principle is as follows:

The motor drives the grinding disc to rotate by the reducer. The material falls into the center of the grinding disc from the inlet orifice, meanwhile the hot blast enters into the mill from the inlet opening, under the effects of the centrifugal force the material moves to the edge of the grinding disc, and then it is ground and pressed by the grinding roller while passing through the annular groove on the grinding disc, the crushed material is brought up by the high speed air jet in the vane at the edge of the grinding disc, the large granule directly falls into the grinding disc to be newly ground, while the material in the airflow passing through the separator and under the effects of the rotary rotor, the rough powder falls into the grinding disc to be newly ground, the eligible fine powder follows the airflow together coming out the mill, the products are collected by the dust collector. The material with the moisture which contacts with the hot gas is dried and reaches the permissible moisture of the products.

3. Features

(1) The material is crushed and ground which is mainly depended on the weight of the grinding roller and the pressure of the pressure device. During the grinding process, the material is always under the effects of the pressure of the grinding roller, while between the grinding roller and the grinding disc is not the purely rolling, the material is under the multi-axial stress effects, so the grinding capacity and the grinding power of the mill are improved.

 (2) The materials get full contact with hot air after entering the mill, then they become powder and suspend in the hot air after been ground, as a result, they make full exchange with hot gas and so the materials are dried while being ground.

 (3) The grinding pressure of the grinding roller is provided by the hydraulic system, the pressure is brought to bear the material through the pressure device and the driving device to pass into the grinding roller, the magnitude of the grinding pressure is transferred through adjusting the pressure of the hydraulic system to satisfy the requirements of grinding the materials with different hardness.

(4) For avoiding the strenuous vibration which is created by the grinding roller contacting with the grinding disc directly during stopping feeding, there should be a certain clearance between the grinding roller and the grinding disc, therefore, so the limit device is specially designed for controlling the size of the clearance, and through the limit device the depth of the material under the grinding roller can be realized at any moment, so the mill can be guaranteed in the safe and economical working conditions to operate.

 (5) The roller sleeve and the lining board of the grinding disc adopt the high hardness alloy wear resistant material, so the abrasion is small and the life is long, and while the roller sleeve is abraded into some certain degree, it can be turned to use, accordingly the useful time of the roller sleeve is prolonged.

 (6) The grinding roller can recur to the effects of the auxiliary oil cylinder; make it turn to the outside of the equipment, so the change and the maintenance & repair are very convenient.

 (7) The device that can prevent the disk base abrasion, adjust the wind speed of the vane and the thickness of the material on the disc are design at the edge of the grinding disc, so the production capacity and the economical operation can be guaranteed.

(8) Separator is made up of the frequency convertor motor, the reducer system, the rotor, the shell and so on. Electric motor drives the rotor of the separator by the reducer system, and then gets the products with different fineness by adjusting the rotary speed of the motor.

(9) The circulating lubricating system for the main reducer is produced by the oil supplying from the thin oil station, so as to ensure the normal working of the reducer.

 

1. Electronic belt scale; 2. Belt conveyor; 3. Electric magnetic iron remover; 4. Rotary air-lock feeder; 5. HRM vertical roller mill;  6. Extrinsic cycle elevator; 7. High efficient cyclone dust collector; 8. Fan damper; 9. Main fan; 10. Air box impulse dust collector;  11. Fan damper; 12. Tail fan; 13. Screw conveyor; 14. Circulating air valve; 15. Hot air valve; 16. Cold air valve

 

 

1. Electronic belt scale; 2. Belt conveyor; 3. Apron chain elevator; 4. Rotary air-lock feeder; 5. HRM vertical roller mill; 6. Air box impulse dust collector; 7. Fan for vertical roller mill; 8. Circulating air butterfly valve; 9. Cold air butterfly valve; 10.Hot air butterfly valve; 11. Electric magnetic iron remover;

The system process is rather complex, the pressure loss is quite large, the wear abrasion of the impeller of the fan is big, but the load of the secondary dust collector is small, the investment of the system is comparatively low, and it is adequate for the material of the small abrasiveness.

The system process is , simp, , le,, , the pressure loss is small, the power consumption of t, he system is low, but the investment is comparatively big, and it is adequate for the material of the comparatively big abrasiveness.

(I)  The preparation for the installation

1. Please examine the dimensions of the holes for the foundation bolts. 

    2. Clean the site.

    3. The sizing block should be reclined among the holes for the foundation bolts according to the requirements; the foundation bolts are placed into the holes for the foundation bolts;

    4. Horizontal measuring apparatus, transit instrument, frame horizontal instrument, sizing block

(Ⅱ)  Installation

Installation of the driving system: at first, accurately put the bases of the main motor and reducer system in the foundation, and then fix the foundation bolts by concrete. After concrete curdling, screw down the bolts, and then align two bases in plane through adjusting the sizing block. After adjusting the base, the errors of the longitudinal and landscape orientation level can not be more than 0.1mm/m, then, carry out the second pouring and then the base should be embedded into the concrete. In succession install the main motor and the reducer, after installation, the slope angle between two axles centerline of the main shaft coupling is required to be less than 0.5degree, and the errors of the height mark should be less than 0.3mm. The installation of the lower shell and grinding disc: installing the lower shell is basis on the extension shaft centerline, the error among the two axles centerlines is less than ±1mm. Firstly the lower shell is lifted onto the foundation, align the center place, then the foundation bolts are fixed by grouting, then the grinding disc is lifted on the reducer lightly, align and install the locating pin. Homogeneously forcibly screw down the connecting bolts. Make the radial clearance between the vanes and under the grinding disc basically coherent through adjusting of the lower shell location. While carrying through the examination by rotating the grinding disc, meanwhile check that the axis direction distance between the superior flange of lower shell and interface of grinding disc whether agree with the installation requirement or not. If not, you can carry through the adjusting for the sizing block. Then screw down, adjust the sizing block to keep the superior flange interface of the lower shell in the level. Installation of the upper shell and the driving arm: According to the requirement of equipment drawing, the upper shell is lifted onto the lower shell, find the correctitude and homogeneously forcibly screw down the connecting bolts. The grinding roller and the driving arm which have already assembled in advance are lifted into the bearing seat of the support of the lower shell and screw down the connecting bolts of the bearing seat, and then turn the driving arm to make the grinding roller gently place onto the grinding disc, at last the seal part of the grinding roller should be installed, while installing please pay attention to the strict nature of the sealing. The installation of the limit device and the separator: The limit device should be assembled in advance, according to the requirements of the dimensions of the equipment foundation drawing to fill its shoes, and screw out the limit bolt and make it contact with the limit head, after alignment the foundation bolts are grouted and fixed, after the mortar curdling, the foundation bolts should be fastened. Then the limit bolts are screwed down to make the distance between the grinding roller and the grinding disc 10mm. In succession the separator should be installed, the separator which has been assembled in advance should be lifted onto the upper shell, homogeneously forcibly fasten the connecting bolts, and the flange interface should be strictly sealed. The installation of the pressure device: The pressure device which has already installed according to the requirements of the drawing should be filled its shoes, then unite with the main body of the mill and align, the foundation bolts are fixed with the grouting, after the mortar curdling the bolts are fastened. The installation of the hydraulic system and the lubricating system: According to the actual conditions of the installation local of the equipment, the various oil pipes which are the necessary for the hydraulic system and the lubricating system should be prepared, the pipe holes should be blasted and cleared by the compressed air and strictly washed by the acid, according to the requirements all of these should be carry through the assembling and installation. Lastly, the foundation should be carried out the secondary pouring.

(III)  The preparing work before the commissioning

a. Carefully examine the installation of the each parts if is right, has the wrong installation or leak to install

b. Carefully clean the carry-over in the mill during the installation

c. Each operating part should be checked by the hand, and examines if it has the any clip or the phenomenon of the metal friction;

d. According to the requirements, the proper lubricating oil or grease should be injected into each lubricating point.

 (IV)  The operating process of the commissioning

    a. Firstly close the filling total valve of the hydraulic system, open the pressure relief valve, and then operate 8 hours in no-load. Then switch on the oil channel and examine the conditions of the lifting roller and decreasing roller, examine the various original production if operating usually.

b. The lubricating system (thin oil station) no-load operates 8 hours in advance, and then examine.

c. The grinding roller is lifted in some measure to leave the grinding disc, starts the main motor and the motor of the separator, and no-load operates 6 hours, and pay attention to the whole operating process that there is no any abnormal sound or phenomenon. Else wise the machine should be stopped immediately. The rotary speed of the separator should be from the small to the big, before operating the main motor the switch should be started, and look the rotary direction of the motor if is right.

d. The preparation before the operating equipment

    (1)  Firstly examine the rotary parts if can normal operation and if the lubricating points have injected the suitable lubricant oil.

    (2) Next the clearance between the grinding disk and the grinding roller is 10mm through adjusting the limit device.

    (3) At last the accumulator should be charged the gas, its pressure can refer to the usage instructions of the accumulator. The hydraulic system is placed in to the normal working state.

e. The order of the operating equipment

The motor of the lubricating system(thin oil station)------- motor of the separator-------raising roller------main motor------feed and fall roller off------- the motor of the hydraulic system

f. The illustration of the operation: After starting the mill, the material feed with a fixed value, operate the hydraulic system to make the grinding roller fall off, start the motor of the oil pump of the hydraulic station, adjust the working pressure of the hydraulic system, to make the system reach the balance, meanwhile the rotary speed of the rotor of the separator should be adjusted, and make the fineness of the products can satisfy the requirements.( firstly the rotary speed of the separator should be adjusted into the maximum, according to the fineness of the products adjust the rotary speed)

    2. While carrying through the above operation, the current of the main motor should be noticed, the bush of the main reducer is less than 70 degree and the temperature of the bearing of the grinding roller is less than 100 degree.

    3. According to the moisture of the material, the temperature of the feed gas should be adjusted, and the maximum can not be more than 350 degree.

    4. The feeding capacity of the mill, the grinding pressure, the ventilation quantity in the mill, the rotary speed of the separator and so on should be considered together, and make them locate in the excellent cooperating state.

g. The matters of the maintenance: after operating period of time, the connecting bolts and the fixed bolts should be examined if there is loose or damage; the abrasion conditions of the seal parts and the wearing parts should be inspected; the lubricant oil or lubricant grease should be provided for the lubricating points regularly; the clearance between the lining board and the roller sleeve should be adjusted according to the abrasion conditions of the roller sleeve; after the mill operated 500 hours, the oil in the main reducer should be exhausted and cleared out, then change the new oil, after then the oil quality should be examined in every 2000 hours, if the quality of the oil is not in accordance with the requirements of the standard, it can change; the roller sleeve can turn-over to use after the abrasion, if there is another abrasion, it should be changed.

Install operation of hydraulic lubricant system for vertical mill

1.Install scope of hydraulic lubricant for vertical mill：

1）            Hydraulic control station of main roller and assist roller;Lubricant control station of main reducer; Spindle bearing lubricant control station of separating mill.

2）            All pipeline install between control station and main parts of machine.

3）            Pipeline clean of hydraulic system and lubricant system.

4）            Each control station may be installed separately and put on the flat table or in the ground pit.

2.Install of pipeline：

          Pipeline of hydraulic system and lubricant system all adopt seamless steel tube. They are connected with welded joint. Cleaning the pipeline with kerosene before install and then blow it with clean and dry air. Pipeline must be cold bending by bending pipe machine. It is not allowed bend with fire. Bending radius is no smaller than three times of pipe diameter. 

3. System infuse oil：

Before infuse hydraulic oil and lubricant oil,oil case must be cleaned with noodle mass.In the meantime must be passed by filter . Precision of filter is 0.5mm. It is not allowed infuse oil to oil case directly.

 

 

 

 

 

 

 

 

1. According to the different conditions of the material, the technical skill and equipment for the complete set of the vertical roller mill should be provided.

2. The installation and the debugging can be provided freely. (One mechanical engineer, one electrical engineer)