WO2018149036A1 - 侧方倾斜进料的立式分级磨粉机 - Google Patents

侧方倾斜进料的立式分级磨粉机 Download PDF

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WO2018149036A1
WO2018149036A1 PCT/CN2017/082984 CN2017082984W WO2018149036A1 WO 2018149036 A1 WO2018149036 A1 WO 2018149036A1 CN 2017082984 W CN2017082984 W CN 2017082984W WO 2018149036 A1 WO2018149036 A1 WO 2018149036A1
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pulverising
roller
grinding
disc
grinding disc
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PCT/CN2017/082984
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English (en)
French (fr)
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林先明
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江苏新业重工股份有限公司
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24—Passing gas through crushing or disintegrating zone
    • B02C23/30—Passing gas through crushing or disintegrating zone the applied gas acting to effect material separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C2015/002—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs combined with a classifier

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  • the invention relates to the technical field of a milling machine, in particular to a vertical classifying mill for lateral inclined feeding.
  • the vertical roller mill integrates grinding, drying, grading (pulverizing) and conveying functions. It has high efficiency, low energy consumption, low abrasion, high operating rate, compact structure, small footprint and space, low noise. Significant advantages such as easy adjustment of product fineness, more and more widely used in the grinding and ultra-fine grinding of cement (raw material, coal, clinker), metallurgical slag, materials, chemical and other industries.
  • the traditional vertical roller mill rolls are all large rolls of the same size, each of which bears the function of fine crushing, compacting and grinding. Due to the large diameter of the grinding roll, the spherical grinding rolls are rolled loose. When the bulk material is used, the larger material block in the upper layer will appear to leave the grinding area, and the grinding roller only finely crushes, compacts and grinds the lower layer material, so the grinding efficiency is low.
  • the traditional groove-shaped grinding disc can only be subjected to wear-resisting treatment by surfacing, which is not only complicated in manufacturing, but also has a long production cycle and high requirements on the material of the grinding disc.
  • the conventional grinding disc has to be welded to the wear-resistant layer on the surface, and the grinding disc must be cast. Steel, the casting process is complex and difficult (the molten steel is poor in fluidity during casting, and the production of large steel castings is difficult).
  • the groove grinding disc is complicated to process.
  • the grinding mechanism of the domestic vertical roller mill is mainly a spherical grinding roller and a groove-shaped grinding disc, and its shape is complicated, the manufacturing difficulty is high, the manufacturing cost is high, the repair is difficult and the cost is high, and the grinding efficiency is low. At the same time, because the grinding mechanism is difficult to repair after wear and the repair time is long, the running rate of the vertical roller mill is low.
  • the present invention provides a graded mill that feeds from the side of the mill body and grades the milled powder.
  • a vertical graded mill with side inclined feeding comprising a secondary fan, a classifier, a grinding body, a grinding disc, a reducer and a motor which are arranged in order from top to bottom, wherein the grinding body A sieve powder cover body is arranged above the grinding disc, and a plurality of sieve powder mesh holes are arranged near the top position of the sieve powder cover body;
  • the grinding disc is provided with a coarse abrasive roller and a fine abrasive roller at different positions along the circumference thereof, wherein the coarse abrasive roller Close to the grinding disc
  • the edge position is set, and an inclined feeding device is further arranged in the top direction, and the feeding port of the inclined feeding device is disposed opposite to the upper position of the coarse abrasive roller;
  • the fine abrasive roller is disposed near the center of the grinding disc
  • a cyclone fan is provided at the mesh position of the sieve powder cover.
  • the grinding disc is respectively provided with an abrasive groove at a position corresponding to the coarse abrasive roller and the fine abrasive roller, and each abrasive groove has a depth of not more than 15 cm.
  • a wind deflector is connected above the sieve powder cover body, and a lower end of the air deflector extends to a mesh at a lowest position of the sieve powder cover body, and the wind guide plate end is fixed on the grinding body.
  • the sieve powder body is sealed between the feed port of the inclined feeding device and the grinding body by the feed baffle, and the bottom of the feed baffle is suspended at the top position of the coarse abrasive roll.
  • the feed baffle has an N-shaped structure.
  • the utility model has the beneficial effects that the vertical grading mill of the invention has a grading coarse abrasive roller and a fine abrasive roller in the circumferential direction of the grinding disc of the grinding body, so that the material enters the grinding disc sequentially Grading abrasives are carried out to ensure that the materials can be ground in sequence, on the one hand, the grinding efficiency is improved, and on the other hand, the fineness of the powder is improved.
  • the feeding device is arranged on the side of the grinding body, and the feeding port of the inclined feeding device is directly opposite to the upper of the coarse abrasive roller, thereby ensuring that the material can be well classified and the classification effect is remarkable.
  • the vertical graded mill of the present invention is further provided with a sieve powder cover body above the grinding disc in the grinding body, and a plurality of sieve powder mesh holes are arranged near the top position of the sieve powder cover body, so that the ground powder can be ground. Further grading and screening are carried out to ensure that the sifted powder can meet its use requirements.
  • the vertical graded mill of the present invention not only classifies the powder, but also classifies the powder, and the obtained material powder is uniform, the structure is simple, easy to operate, and has good performance.
  • Figure 1 is a structural view of an embodiment of a vertical graded mill with side inclined feed
  • 1- secondary fan 2-grinding body, 3-grinding disc, 31-abrasive groove; 4-reducer, 5-motor, 6-screen powder cover, 61-sieve mesh; 7-coarse abrasive Roller, 8-fine abrasive roll, 81-feed port; 9-one cyclone fan, 10-wind deflector, 11-feed baffle, 12-classifier.
  • the vertical graded mill with side inclined feeding includes an secondary fan 1, a classifier 12, a grinding body 2, a grinding disc 3, a speed reducer 4 and a motor 5 which are arranged in order from top to bottom.
  • the grinding body 2 is disposed above the grinding disc 3 with a sieve powder cover body 6.
  • the sieve powder cover body 6 is provided with a plurality of sieve powder mesh holes 61 near the top position; the grinding disc 3 is provided with coarse abrasives at different positions along the circumference thereof.
  • the roller 7 and the fine abrasive roller 8 are disposed, wherein the coarse abrasive roller 7 is disposed near the edge of the grinding disc 3, and the inclined feeding device 8 is further disposed in the top direction, and the feeding port 81 of the inclined feeding device 8 faces the coarse abrasive roller 7
  • the upper position is set; the fine abrasive roller 8 is disposed near the center of the grinding disc 3; and a cyclone fan 9 is provided at the mesh position of the sieve powder cover 6.
  • the grinding disc 3 is provided with an abrasive groove 31 at a position corresponding to the coarse abrasive roll 7 and the fine abrasive roll 8, respectively, and the depth of each of the abrasive grooves 31 is not more than 15 cm, thereby ensuring the pair of abrasive grooves 31. While the coarse abrasive roll 7 and the fine abrasive roll 8 are limited, it is also ensured that the ground coarse powder on the grinding disc can completely enter the fine powder to be ground.
  • the wind deflecting plate 10 is connected to the upper side of the sieve body 6 and the lower end of the wind deflector 10 extends to the mesh of the lowest position of the sieving cover 6 at the upper end of the wind deflector 10. It is fixed on the grinding body 1 to ensure that the fine powder blown out by one cyclone fan can pass through the secondary fan quickly and completely, and finally exits from the discharge port and enters the next process.
  • the sieve powder cover 6 and the feed port 81 of the inclined feed device 8 and the grinding body 1 are sealed by the feed baffle 11 And the bottom of the feed baffle 11 is suspended at the top position of the coarse abrasive roll 7.
  • the feed baffle 11 has an N-shaped structure and has a good barrier effect.
  • the vertical graded mill of the invention not only classifies the powder, but also classifies the powder, the obtained material powder is uniform, the structure is simple, easy to operate, and has good performance.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

一种侧方倾斜进料的立式分级磨粉机，包括：从上至下依次设置的二次风机（1）、分级机（12）、磨体（2）、磨盘（3）、减速机（4）和电机（5）。磨体（2）内位于磨盘（3）的上方设有筛粉罩体（6），筛粉罩体（6）靠近顶部位置附近设有若干筛粉网孔（61），磨盘（3）沿其周向远近不同位置处设有粗磨料辊（7）和细磨料辊（8）。粗磨料辊（7）靠近磨盘（3）的边缘位置设置，并且顶部方向上还设有倾斜进料装置，倾斜进料装置的进料口（81）正对粗磨料辊（7）的上方位置设置，细磨料辊（8）靠近磨盘（3）的中心位置设置；正对筛粉罩体（6）的网孔（61）位置处设有一次旋风风机（9）。这种立式分级磨粉机，分级压粉、分级出料，得到的物料粉均匀，结构简单，易操作。

Description

侧方倾斜进料的立式分级磨粉机 技术领域
本发明涉及磨粉机技术领域，特别是涉及侧方倾斜进料的立式分级磨粉机。
背景技术
立式辊磨机集粉磨、烘干、分级(选粉)和输送功能于一体，具有效率高、能耗小、磨蚀低、运转率高、结构紧凑、占用场地和空间小、噪声低、产品细度易于调节等显著优点，越来越广泛地用于水泥(生料、煤、熟料)、冶金矿渣、材料、化工等行业物料的粉磨和超细粉磨。
传统的立式辊磨机磨辊均是一样尺寸的大辊，每个磨辊都承担着细碎、压实和粉磨的功能，由于磨辊辊径较大，球形的磨辊碾压在松散的块状物料时，上层较大的物料块会出现离开粉磨区域的现象，磨辊只对低层较小的物料进行细碎、压实和粉磨，因此粉磨效率低。
传统的凹槽形磨盘只能采用堆焊的方式进行耐磨处理，不仅制造复杂，生产周期长，对磨盘材料的要求也高，传统的磨盘由于表面要堆焊耐磨层，磨盘必须用铸钢，铸造工艺复杂且难度大(铸造时钢水流动性差，大型铸钢件生产难度大)。而凹槽的磨盘加工复杂。
目前国内立式辊磨机的粉磨机构主要是球形磨辊和凹槽形磨盘，其外形复杂，制造难度大造价高，磨损后修复较为困难且费用高，粉磨效率低。同时，由于粉磨机构磨损后修复较困难，修复时间长，导致立式辊磨机的运转率低。这些缺点影响了整个水泥生产线的运转率，使水泥生产线的开工率和效益受到影响。
发明内容
为了克服上述现有技术的不足，本发明提供了从磨体侧方进料，并且分级碾磨粉料的分级磨粉机。
本发明所采用的技术方案是：侧方倾斜进料的立式分级磨粉机，包括从上至下依次设置的二次风机、分级机、磨体、磨盘、减速机和电机，其中磨体内位于磨盘的上方设有筛粉罩体，筛粉罩体靠近顶部位置附近设有若干筛粉网孔；磨盘沿其周向远近不同位置处设有粗磨料辊和细磨料辊，其中粗磨料辊靠近磨盘的 边缘位置设置，并且顶部方向上还设有倾斜进料装置，倾斜进料装置的进料口正对粗磨料辊的上方位置设置；
细磨料辊靠近磨盘的中心位置设置；
正对筛粉罩体的网孔位置处设有一次旋风风机。
进一步地，磨盘对应粗磨料辊和细磨料辊的位置处分别设有一个磨料凹槽，并且每一个磨料凹槽的深度不大于15cm。
进一步地，磨体上位于筛粉罩体上方还连接有导风板，导风板下端延伸至筛粉罩体的最低位置的网孔处，导风板上端固定在磨体上。
进一步地，筛粉罩体与倾斜进料装置的进料口和磨体之间通过进料挡板密闭，并且进料挡板的底部悬空于粗磨料辊的顶部位置。
进一步地，进料挡板为N字形结构。
与现有技术相比，本发明的有益效果是：本发明的立式分级磨粉机，在其磨体的磨盘周向上设置了分级的粗磨料辊和细磨料辊，使得物料进入磨盘后依次进行分级磨料，保证物料能够依次磨细，一方面提高磨压效率，另一方面提高了粉料的细度。
而且进料装置设置在磨体的侧方，同时倾斜进料装置的进料口直接正对粗磨料辊的上方，保证了物料能够得到很好的分级，分级效果显著。
此外，本发明的立式分级磨粉机，还在磨体内位于磨盘的上方设有筛粉罩体，筛粉罩体靠近顶部位置附近设有若干筛粉网孔，使得磨出的粉料能够得到进一步分级以及筛选，保证筛分出的粉料能够达到其使用需求。
综上所述，本发明的立式分级磨粉机，不仅分级压粉，还分级出粉料，得到的物料粉均匀，结构整体简单，容易操作，具有较好的使用性能。
附图说明
图1为侧方倾斜进料的立式分级磨粉机的一个实施例的结构图；
其中：1-二次风机，2-磨体，3-磨盘，31-磨料凹槽；4-减速机，5-电机，6-筛粉罩体，61-筛粉网孔；7-粗磨料辊，8-细磨料辊，81-进料口；9-一次旋风风机，10-导风板，11-进料挡板，12-分级机。
具体实施方式
为了加深对本发明的理解，下面结合附图和实施例对本发明进一步说明，该实施例仅用于解释本发明，并不对本发明的保护范围构成限定。
如图1所示，侧方倾斜进料的立式分级磨粉机，包括从上至下依次设置的二次风机1、分级机12、磨体2、磨盘3、减速机4和电机5，其中磨体2内位于磨盘3的上方设有筛粉罩体6，筛粉罩体6靠近顶部位置附近设有若干筛粉网孔61；磨盘3沿其周向远近不同位置处设有粗磨料辊7和细磨料辊8，其中粗磨料辊7靠近磨盘3的边缘位置设置，并且顶部方向上还设有倾斜进料装置8，倾斜进料装置8的进料口81正对粗磨料辊7的上方位置设置；细磨料辊8靠近磨盘3的中心位置设置；正对筛粉罩体6的网孔位置处设有一次旋风风机9。
在上述实施例中，磨盘3对应粗磨料辊7和细磨料辊8的位置处分别设有一个磨料凹槽31，并且每一个磨料凹槽31的深度不大于15cm，从而保证磨料凹槽31对粗磨料辊7和细磨料辊8限位的同时，还能保证磨盘上磨好的粗粉料能够完全地进入细粉料去研磨。
在上述实施例中，磨体1上位于筛粉罩体6上方还连接有导风板10，导风板10下端延伸至筛粉罩体6的最低位置的网孔处，导风板10上端固定在磨体1上，进而保证通过一次旋风风机吹出的细粉料能够快速并且完全地通过二次风机，最终从出料口出去，进入到下一道工序。
在上述实施例中，为了保证物料能够完全并且及时地进入到粗磨料辊磨料，筛粉罩体6与倾斜进料装置8的进料口81和磨体1之间通过进料挡板11密闭，并且进料挡板11的底部悬空于粗磨料辊7的顶部位置。
在上述实施例中，进料挡板11为N字形结构，具有较好的隔挡效果。
本发明的立式分级磨粉机，不仅分级压粉，还分级出粉料，得到的物料粉均匀，结构整体简单，容易操作，还具有较好的使用性能。
本发明的实施例公布的是较佳的实施例，但并不局限于此，本领域的普通技术人员，极易根据上述实施例，领会本发明的精神，并做出不同的引申和变化，但只要不脱离本发明的精神，都在本发明的保护范围内。

Claims (5)

  1. 侧方倾斜进料的立式分级磨粉机，其特征在于：包括从上至下依次设置的二次风机(1)、分级机(12)、磨体(2)、磨盘(3)、减速机(4)和电机(5)，其中磨体(2)内位于磨盘(3)的上方设有筛粉罩体(6)，筛粉罩体(6)靠近顶部位置附近设有若干筛粉网孔(61)；磨盘(3)沿其周向远近不同位置处设有粗磨料辊(7)和细磨料辊(8)，其中粗磨料辊(7)靠近磨盘(3)的边缘位置设置，并且顶部方向上还设有倾斜进料装置(8)，倾斜进料装置(8)的进料口(81)正对粗磨料辊(7)的上方位置设置；
    细磨料辊(8)靠近磨盘(3)的中心位置设置；
    正对筛粉罩体(6)的网孔位置处设有一次旋风风机(9)。
  2. 根据权利要求1所述的侧方倾斜进料的立式分级磨粉机，其特征在于：磨盘(3)对应粗磨料辊(7)和细磨料辊(8)的位置处分别设有一个磨料凹槽(31)，并且每一个磨料凹槽(31)的深度不大于15cm。
  3. 根据权利要求1或2所述的侧方倾斜进料的立式分级磨粉机，其特征在于：磨体(1)上位于筛粉罩体(6)上方还连接有导风板(10)，导风板(10)下端延伸至筛粉罩体(6)的最低位置的网孔处，导风板(10)上端固定在磨体(1)上。
  4. 根据权利要求3所述的侧方倾斜进料的立式分级磨粉机，其特征在于：筛粉罩体(6)与倾斜进料装置(8)的进料口(81)和磨体(1)之间通过进料挡板(11)密闭，并且进料挡板(11)的底部悬空于粗磨料辊(7)的顶部位置。
  5. 根据权利要求4所述的侧方倾斜进料的立式分级磨粉机，其特征在于：进料挡板(11)为N字形结构。
PCT/CN2017/082984 2017-02-17 2017-05-04 侧方倾斜进料的立式分级磨粉机 WO2018149036A1 (zh)

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