CN104941769A - Solid material grinding method and solid material grinding machine - Google Patents

Solid material grinding method and solid material grinding machine Download PDF

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CN104941769A
CN104941769A CN201510312768.7A CN201510312768A CN104941769A CN 104941769 A CN104941769 A CN 104941769A CN 201510312768 A CN201510312768 A CN 201510312768A CN 104941769 A CN104941769 A CN 104941769A
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grinding
solid material
abrasive body
hammering
wear
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CN104941769B (en
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蔡昌荣
曹星
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00Disintegrating plant with or without drying of the material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B02C13/1807Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26Details
    • B02C13/282Shape or inner surface of mill-housings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26Details
    • B02C13/288Ventilating, or influencing air circulation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary 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
    • B02C23/18Adding fluid, other than for crushing or disintegrating by fluid energy

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

本发明涉及一种固体物料研磨方法和研磨机,固体物料经一次风选后进入研磨室的研磨体内,在高速旋转的研磨体的离心作用下沿径向被抛到衬板上撞击破碎,弹回后与新进物料对冲碰击破碎,大颗粒物料受重力等作用下落经高速锤击后向上通过导管进入工作仓,工作仓兼具进料与风混淘析功能,通过风混淘后的物料进入分级器分级,达到粒度要求的成品物料经螺旋收料器和布袋除尘器收集后由成品出料器出料,未达到粒度要求的物料返回研磨室再次进行研磨。本发明的有益效果是:研磨粒度细、研磨效率高及细粉收集效果好,可生产粒度范围在80~1500目的粉体,特别在生产800目以上超细粉或硬度较大的物料时具有产量高、质量稳定的优点;设备结构紧凑,维修成本低。

The invention relates to a solid material grinding method and a grinding machine. The solid material enters the grinding body of the grinding chamber after a wind selection, and is thrown to the liner plate in the radial direction under the centrifugal action of the high-speed rotating grinding body to be impacted and crushed. After returning, it collides with the new material and breaks it. The large-grained material falls under the action of gravity and is hammered at high speed, and then enters the working chamber through the conduit. The working chamber has both the functions of feeding and air-mixing elutriation. The materials enter the classifier for classification, and the finished materials meeting the particle size requirements are collected by the spiral collector and bag filter, and then discharged from the finished product discharger, and the materials that do not meet the particle size requirements are returned to the grinding chamber for grinding again. The beneficial effects of the present invention are: fine grinding particle size, high grinding efficiency and fine powder collection effect, and can produce powders with a particle size ranging from 80 to 1500 mesh, especially in the production of ultrafine powder above 800 mesh or materials with relatively high hardness. The advantages of high output and stable quality; compact equipment structure and low maintenance cost.

Description

一种固体物料研磨方法及固体物料研磨机A kind of solid material grinding method and solid material grinding machine

技术领域technical field

本发明涉及固体物料破碎技术领域,尤其涉及一种成品物料粒度范围在80~1500目的固体物料研磨方法及固体物料研磨机。The invention relates to the technical field of solid material crushing, in particular to a solid material grinding method and a solid material grinding machine for finished material whose particle size ranges from 80 to 1500 mesh.

背景技术Background technique

磨粉机超微粉碎技术是近几年伴随着现代高技术和新材料产业而发展起来的一项新的粉碎工程技术,现已成为最重要的工业矿物及其他原材料深加工技术之一,对现代高新技术产业的发展具有重要意义。物料经超细化后,随着其表面积的聚增,可引起其它性能的变化,而大幅度地提高材料的使用效果和利用率。超细微粉正在渗入整个工业部门和高技术领域,被誉为现代高新技术的原点。超微粉碎技术已被广泛应用于化工、冶金、矿业、建材、日化、食品、医药、农业、环保和航空航天等诸多领域。The superfine pulverization technology of pulverizer is a new pulverization engineering technology developed along with modern high technology and new material industry in recent years, and has become one of the most important deep processing technologies of industrial minerals and other raw materials. The development of high-tech industries is of great significance. After the material is ultra-fine, with the increase of its surface area, other performance changes can be caused, and the use effect and utilization rate of the material can be greatly improved. Ultrafine powder is infiltrating the entire industrial sector and high-tech fields, and is known as the origin of modern high-tech. Ultrafine pulverization technology has been widely used in many fields such as chemical industry, metallurgy, mining, building materials, daily chemicals, food, medicine, agriculture, environmental protection and aerospace.

在磨机磨粉过程中,由于磨机内的研磨体与固体颗粒外表面接触产生剧烈摩擦、固体颗粒之间的碰撞、摩擦,以及固体颗粒与筒内壁的剧烈碰撞、摩擦,使固体颗粒带有大量静电,导致研磨体和衬板表面被微粉所粘附,形成所谓“缓冲垫层”,降低了研磨介质对物料的冲击几率和研磨作用,从而降低了磨机工作效率,导致磨机产量和产品质量降低、颗粒级配不合理。前苏联学者研究指出:“在球和衬板上粘结200um的物料层,由此产生的缓冲作用使冲击能降低80%”,可见物料层的缓冲作用对冲击能降低的严重程度。During the grinding process of the mill, due to the violent friction between the grinding body in the mill and the outer surface of the solid particles, the collision and friction between the solid particles, and the violent collision and friction between the solid particles and the inner wall of the cylinder, the solid particles are brought There is a large amount of static electricity, which causes the surface of the grinding body and the liner to be adhered by the fine powder, forming a so-called "buffer layer", which reduces the impact probability and grinding effect of the grinding medium on the material, thereby reducing the working efficiency of the mill and resulting in a decrease in the output of the mill. And the product quality is reduced, and the particle gradation is unreasonable. Scholars from the former Soviet Union pointed out: "A 200um material layer is bonded to the ball and the liner, and the resulting buffering effect reduces the impact energy by 80%." It can be seen that the buffering effect of the material layer reduces the severity of the impact energy.

目前国内最常用的磨粉机是雷蒙磨粉机、立式磨粉机,但其在使用过程中存在下列问题:1)产品细度低,普通雷蒙磨的细度一般在500目以下;2)机械故障率高,耗电大、噪音大,排放污染大;3)系统效率低,产品的收集系统分离效果不理想,大量的细粉得不到有效的收集而在系统内重复循环造成动力浪费;4)进入研磨区物料中的较大颗粒和未来得及研磨碎的颗粒经常被抛进风箱聚集在蜗箱尾部,并不断向前延伸,使过风量逐渐减少,易造成塞车,不出粉或少出粉,影响产量;5)检修及维护不方便,易损件、耐磨件使用周期短,更换费用高。At present, the most commonly used mills in China are Raymond mills and vertical mills, but they have the following problems in the process of use: 1) The product fineness is low, and the fineness of ordinary Raymond mills is generally below 500 mesh ; 2) High mechanical failure rate, high power consumption, high noise, and large emission pollution; 3) Low system efficiency, unsatisfactory separation effect of the product collection system, a large amount of fine powder cannot be effectively collected and repeated circulation in the system Cause power waste; 4) The larger particles in the material entering the grinding area and the particles that will not be ground in the future are often thrown into the bellows box and gathered at the tail of the volute box, and continue to extend forward, so that the air volume is gradually reduced, which is easy to cause traffic jams. Powder output or less powder output will affect the output; 5) Overhaul and maintenance are inconvenient, the service life of wearing parts and wear-resistant parts is short, and the replacement cost is high.

发明内容Contents of the invention

本发明提供了一种固体物料研磨方法,具有研磨粒度细、研磨效率高及细粉收集效果好的特点,同时提供的固体物料研磨机适用范围广,可生产粒度范围在80~1500目的粉体,特别在生产800目以上超细粉或硬度较大的物料(如电熔镁)时其生产效率为普通磨机的3~5倍,且产品质量稳定;设备结构紧凑,检修及维护简单,易损件、耐磨件使用寿命长,更换费用低,能显著降低生产成本。The invention provides a solid material grinding method, which has the characteristics of fine grinding particle size, high grinding efficiency and good fine powder collection effect. At the same time, the solid material grinding machine provided has a wide application range and can produce powders with a particle size ranging from 80 to 1500 mesh. , especially in the production of ultra-fine powder above 800 mesh or materials with high hardness (such as fused magnesium), its production efficiency is 3 to 5 times that of ordinary mills, and the product quality is stable; the equipment is compact in structure, easy to repair and maintain, Consumable parts and wear-resistant parts have long service life and low replacement cost, which can significantly reduce production costs.

为了达到上述目的,本发明采用以下技术方案实现:In order to achieve the above object, the present invention adopts the following technical solutions to realize:

一种固体物料研磨方法,研磨体高速旋转产生上升气流,研磨室上部工作仓兼具进料与风混淘析功能,且工作仓仓壁开设有环形进风口,使研磨体内始终保持正压,并提供风混淘析用风;预破后的固体物料从工作仓进料口进入研磨机,经第一次风选后进入研磨体内;在高速旋转的研磨体的离心作用下,物料从研磨体上的物料甩出口沿径向被抛到研磨室侧壁的衬板上撞击破碎,弹回后与新进物料对冲碰击破碎;大颗粒物料受重力、反弹力作用下落,在经研磨体锤击板高速锤击、研磨后,物料在研磨体旋转形成的气流作用下向上通过导管进入工作仓,通过风混淘析后进入分级器分级,达到粒度要求的成品物料经螺旋收料器和布袋除尘器收集后由成品出料器出料,未达到粒度要求的物料返回研磨室再次进行破碎研磨。A grinding method for solid materials. The grinding body rotates at high speed to generate an updraft. The upper working chamber of the grinding chamber has the functions of feeding and air-mixing elutriation, and the wall of the working chamber is provided with a ring-shaped air inlet to keep the positive pressure in the grinding body all the time. Air mixing and elutriation are also provided; pre-broken solid materials enter the grinder from the feed port of the working chamber, and enter the grinding body after the first winnowing; under the centrifugal action of the high-speed rotating grinding body, the The material ejection outlet on the body is thrown radially onto the lining plate of the side wall of the grinding chamber to be impacted and crushed, and after rebounding, it collides with the new material and crushes; After the hammering plate is hammered and ground at high speed, the material enters the working chamber through the duct upwards under the action of the airflow formed by the rotation of the grinding body, and enters the classifier after being eluted by air mixing, and the finished material that meets the particle size requirements passes through the spiral receiver and After being collected by the bag filter, the material is discharged from the finished product discharger, and the material that does not meet the particle size requirement is returned to the grinding chamber for crushing and grinding again.

研磨体破碎时物料的最大线速度为120m/s,成品物料的粒度通过调整分级器的电机转速实现。When the grinding body is crushed, the maximum linear velocity of the material is 120m/s, and the particle size of the finished material is realized by adjusting the motor speed of the classifier.

用于实现一种固体物料研磨方法的固体物料研磨机,包括由下至上依次设置的研磨室、工作仓和分级器,所述研磨室中部设有研磨体,与研磨体对应的研磨室侧壁上设衬板;研磨体为中空结构,上部接料口与工作仓下料口连接,周向设有多个物料甩出口及锤击板;研磨室和工作仓通过多个导管连接,工作仓设有环形进风口;分级器依次连接螺旋收料器和布袋除尘器,螺旋收料器和布袋除尘器的出料口分别连接成品出料器;工作仓的进料口另外通过物料输送装置连接原料仓。A solid material grinder for realizing a solid material grinding method, including a grinding chamber, a working chamber and a classifier arranged sequentially from bottom to top, the middle of the grinding chamber is provided with a grinding body, and the side wall of the grinding chamber corresponding to the grinding body There is a liner on the top; the grinding body is a hollow structure, the upper material inlet is connected to the lower material opening of the working chamber, and there are multiple material throwing outlets and hammering plates in the circumferential direction; the grinding chamber and the working chamber are connected through multiple conduits, and the working chamber is equipped with Ring-shaped air inlet; the classifier is connected to the spiral collector and the bag filter in turn, and the outlets of the spiral receiver and the bag filter are respectively connected to the finished product outlet; the inlet of the working warehouse is also connected to the raw material warehouse through the material conveying device .

所述研磨体沿圆周方向设有多个垂直或倾斜的锤击板,每个锤击板位于旋转方向一侧设1~10块耐磨块,耐磨块表面设有高耐磨合金层,锤击板与研磨体本体之间采用耐磨焊条焊接。The grinding body is provided with a plurality of vertical or inclined hammering plates along the circumferential direction, and each hammering plate is provided with 1 to 10 wear-resistant blocks on one side of the rotation direction, and a high-wear-resistant alloy layer is provided on the surface of the wear-resistant blocks. The wear-resistant welding rod is used to weld the hammering plate and the grinding body body.

所述锤击板成组设置,每组分为上锤击板和下锤击板,且上锤击板和下锤击板在圆周方向交错设置,上锤击板、下锤击板的部分或整体垂直或倾斜设置,倾斜角度为5°~30°。The hammering plates are arranged in groups, and each group is divided into an upper hammering plate and a lower hammering plate, and the upper hammering plates and the lower hammering plates are arranged alternately in the circumferential direction, and the parts of the upper hammering plates and the lower hammering plates Or the overall vertical or inclined setting, the inclination angle is 5°~30°.

所述衬板为密集排列的内凹弧形齿衬板,且表面设有高耐磨合金层。The liner is a densely arranged concave arc-shaped tooth liner, and the surface is provided with a high wear-resistant alloy layer.

所述高耐磨合金层通过粘贴、涂敷或堆焊方式设置,高耐磨合金的牌号为YL8。The high wear-resistant alloy layer is set by pasting, coating or surfacing, and the grade of the high wear-resistant alloy is YL8.

所述研磨体内沿圆周方向设多个弧形导流板,弧形导流板位于各物料甩出口之间。A plurality of arc-shaped deflectors are arranged in the grinding body along the circumferential direction, and the arc-shaped deflectors are located between the outlets for throwing out materials.

所述成品出料器为双向蛟龙输送机,出料口设在螺旋收料器和布袋除尘器的出料口之间,且成品出料器出料口两侧输送叶片的螺旋方向相反。The finished product discharger is a two-way Jiaolong conveyor, the discharge port is set between the spiral receiver and the discharge port of the bag filter, and the spiral direction of the conveying blades on both sides of the finished product discharge port is opposite.

所述分级器为鼠笼式分级器。The classifier is a squirrel cage classifier.

与现有技术相比,本发明的有益效果是:Compared with prior art, the beneficial effect of the present invention is:

1)研磨体具备多种功能,一是鼓风功能,将破碎后的物料输送到工作仓中进行风混淘析;二是物料加速及径向抛出功能,可将物料加速至110~120m/s并径向抛出直接撞击衬板,对锤击板和衬板均具有冲刷作用,有效破除“缓冲垫层”;三是具备锤击功能,锤击进入研磨室内的物料;研磨体的结构是实现高效研磨、提高成品物料目数、提高粉磨效率的保证,因此本发明所述研磨机产量大,成品质量高,颗粒级配合理;1) The grinding body has multiple functions, one is the blowing function, which transports the crushed materials to the working warehouse for air mixing and elutriation; the other is the material acceleration and radial throwing function, which can accelerate the materials to 110-120m /s and radially thrown directly hit the liner, which has a scouring effect on both the hammer plate and the liner, effectively breaking the "cushion cushion"; third, it has the hammering function, hammering the materials entering the grinding chamber; the grinding body The structure is the guarantee to achieve high-efficiency grinding, increase the mesh number of finished materials, and improve the grinding efficiency. Therefore, the grinding machine of the present invention has large output, high-quality finished products, and reasonable particle gradation;

2)实现了最高可达1500目超细粉体的规模化生产,产品应用广泛,市场前景好;2) The large-scale production of superfine powder up to 1500 mesh has been realized, and the products are widely used and have a good market prospect;

3)开放式进料口使研磨室内始终保持正压,防止因负压导致800目以上细粉在研磨室内循环而造成的动力浪费,提高生产效率,保证细粉收集效果,并可对物料进行干燥,对研磨室起到风冷降温作用;3) The open feeding port keeps positive pressure in the grinding chamber, prevents the waste of power caused by the circulation of fine powder above 800 mesh in the grinding chamber due to negative pressure, improves production efficiency, ensures the collection effect of fine powder, and can process the material Drying, air-cooling and cooling effect on the grinding chamber;

4)工作仓兼具进料仓和风混淘析器功能,与研磨体通过导管连通,并由环形进风口进风,使分级器落下物料进行反复淘析,分级效率高;4) The working chamber has both the function of the feeding chamber and the air-mixing elutriator. It is connected with the grinding body through the duct, and the air is taken in through the annular air inlet, so that the materials falling from the classifier can be repeatedly elutriated, and the classification efficiency is high;

5)研磨室内与物料碰撞接触部位均设高耐磨合金层,抗磨损性好,物料含铁量小;锤击板工作表面设多块耐磨块,可根据磨损程度选择性更换,且互换性好,使设备维修、更换易损件的成本大大降低;5) There are high wear-resistant alloy layers in the grinding chamber where the material collides with the material, which has good wear resistance and low iron content in the material; there are multiple wear-resistant blocks on the working surface of the hammering plate, which can be selectively replaced according to the degree of wear, and are mutually Good replaceability, which greatly reduces the cost of equipment maintenance and replacement of wearing parts;

6)采用双向蛟龙输送机作为成品出料设备,可同时与螺旋收料器和布袋除尘器的出料口连接,且输送量均匀,双向蛟龙输送机出料口两侧采用双向螺旋叶片推送物料,出料效率高,混合性好;6) The two-way Jiaolong conveyor is used as the finished product discharge equipment, which can be connected with the discharge port of the spiral receiver and the bag filter at the same time, and the conveying volume is even. Both sides of the discharge port of the two-way Jiaolong conveyor adopt two-way spiral blades to push the material , high discharge efficiency, good mixing;

7)设备整体结构简单,布局紧凑,体积小,容易制造,生产的成品粒度范围大,调节方便,与其他超细粉体磨粉机相比,生产同级产品具有生产效率高,成本低的优势。7) The overall structure of the equipment is simple, the layout is compact, the volume is small, and it is easy to manufacture. The finished product has a large particle size range and is easy to adjust. Compared with other ultrafine powder mills, the production of products of the same level has high production efficiency and low cost. Advantage.

附图说明Description of drawings

图1是本发明所述一种固体物料研磨机的结构示意图。Fig. 1 is a schematic structural view of a solid material grinder according to the present invention.

图2-1是图1中的A-A剖视图一。Figure 2-1 is the first cross-sectional view of A-A in Figure 1 .

图2-1a是图2-1中的M向视图。Figure 2-1a is the M-direction view in Figure 2-1.

图2-1b是图2-1中的N向视图一。Figure 2-1b is the N-direction view 1 in Figure 2-1.

图2-1c是图2-1中的N向视图二。Figure 2-1c is the second N-direction view in Figure 2-1.

图2-2是图1中的A-A剖视图二。Figure 2-2 is the second cross-sectional view of A-A in Figure 1 .

图2-2a是图2-2中的M向视图。Figure 2-2a is the M-direction view in Figure 2-2.

图2-2b是图2-2中的N向视图。Figure 2-2b is the N-direction view in Figure 2-2.

图3是本发明所述物料研磨机主体部分剖视图。Fig. 3 is a sectional view of the main body of the material grinding machine of the present invention.

图4是本发明所述分级器的结构示意图。Fig. 4 is a structural schematic diagram of the classifier of the present invention.

图5是本发明所述双向蛟龙输送机的结构示意图。Fig. 5 is a schematic structural view of the two-way Jiaolong conveyor of the present invention.

图中:1.主机架 2.主电机 3.研磨室 31.研磨体 310.上导流板 311.下导流板32.研磨室侧壁 33.衬板 34.研磨室连接法兰 35.锤击板 35a.上锤击板 35b.下锤击板 36.耐磨块 37.弧形导流板 4.导管 5.工作仓 51.进料口 52.环形进风口 6.分级器 61.分级器电机 62.皮带传动装置 63.分级器传动轴 64.支撑板 65.叶片转子 66.分级器出料口 7.物料输送装置 8.原料仓 9.原料仓支架 10.螺旋收料器11.布袋除尘器 12.成品出料器 121.双向蛟龙输送机电机 122.双向蛟龙输送机传动轴 123.正向螺旋叶片 124.反向螺旋叶片 125.螺旋收料器出料接料口 126.布袋除尘器出料接料口 127.双向蛟龙输送机出料口 13.轴流引风机In the figure: 1. Main frame 2. Main motor 3. Grinding chamber 31. Grinding body 310. Upper deflector 311. Lower deflector 32. Grinding chamber side wall 33. Liner 34. Grinding chamber connection flange 35. Hammering plate 35a. Upper hammering plate 35b. Lower hammering plate 36. Wear-resistant block 37. Curved deflector 4. Conduit 5. Working chamber 51. Material inlet 52. Annular air inlet 6. Classifier 61. Classifier motor 62. Belt transmission device 63. Classifier drive shaft 64. Support plate 65. Blade rotor 66. Classifier outlet 7. Material conveying device 8. Raw material bin 9. Raw material bin bracket 10. Spiral receiver 11 .Bag dust collector 12. Finished product discharge device 121. Two-way dragon conveyor motor 122. Two-way dragon conveyor drive shaft 123. Forward spiral blade 124. Reverse spiral blade 125. Spiral receiver discharge port 126. Cloth bag dust collector discharge port 127. Two-way Jiaolong conveyor discharge port 13. Axial flow induced draft fan

具体实施方式Detailed ways

下面结合附图对本发明的具体实施方式作进一步说明:The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

如图1及图3所示,本发明所述一种固体物料研磨方法,研磨体31高速旋转产生上升气流,研磨室3上部工作仓5兼具进料与风混淘析功能,且工作仓5仓壁开设有环形进风口52,使研磨体31内始终保持正压,并提供风混淘析用风;预破后的固体物料从工作仓进料口51进入研磨机,经第一次风选后进入研磨体31内;在高速旋转的研磨体31的离心作用下,物料从研磨体31上的物料甩出口沿径向被抛到研磨室侧壁32的衬板33上撞击破碎,弹回后与新进物料对冲碰击破碎;大颗粒物料受重力、反弹力作用下落,在经研磨体锤击板35高速锤击、研磨后,物料在研磨体31旋转形成的气流作用下向上通过导管4进入工作仓5,通过风混淘析后进入分级器6分级,达到粒度要求的成品物料经螺旋收料器10和布袋除尘器11收集后由成品出料器12出料,未达到粒度要求的物料返回研磨室3再次进行破碎研磨。As shown in Fig. 1 and Fig. 3, a kind of solid material grinding method of the present invention, grinding body 31 rotates at a high speed to generate updraft, grinding chamber 3 upper working chamber 5 has concurrently feeding and air mixing elutriation function, and working chamber 5. There is an annular air inlet 52 on the warehouse wall to keep the positive pressure inside the grinding body 31 and provide wind for air mixing and elutriation; the pre-broken solid material enters the grinder from the feeding inlet 51 of the working chamber, and after the first After air selection, it enters the grinding body 31; under the centrifugal action of the high-speed rotating grinding body 31, the material is thrown from the material ejection port of the grinding body 31 to the lining plate 33 of the side wall 32 of the grinding chamber in the radial direction and is crushed. After bouncing back, it collides with the new material and breaks it; the large-grained material falls under the action of gravity and rebound force, and after being hammered and ground by the grinding body hammer plate 35 at high speed, the material moves upward under the action of the airflow formed by the rotation of the grinding body 31 It enters the working chamber 5 through the conduit 4, and enters the classifier 6 for classification after being elutriated by air mixing. The finished materials that meet the particle size requirements are collected by the spiral collector 10 and the bag filter 11, and then discharged by the finished product discharger 12. The material with the required particle size returns to the grinding chamber 3 for crushing and grinding again.

研磨体31破碎时物料的最大线速度为120m/s,成品物料的粒度通过调整分级器6的电机转速实现。When the grinding body 31 is crushed, the maximum linear velocity of the material is 120 m/s, and the particle size of the finished material is realized by adjusting the motor speed of the classifier 6 .

见图1,是本发明所述一种固体物料研磨机的结构示意图。本发明所述用于实现一种固体物料研磨方法的固体物料研磨机,包括由下至上依次设置的研磨室3、工作仓5和分级器6,所述研磨室3中部设有研磨体31,与研磨体31对应的研磨室侧壁32上设衬板33;研磨体31为中空结构,上部接料口与工作仓5下料口连接,周向设有多个物料甩出口及锤击板35;研磨室3和工作仓5通过多个导管4连接,工作仓5设有环形进风口52;分级器6依次连接螺旋收料器10和布袋除尘器11,螺旋收料器10和布袋除尘器11的出料口分别连接成品出料器12;工作仓5的进料口51另外通过物料输送装置7连接原料仓8。See Fig. 1, which is a schematic structural view of a solid material grinder according to the present invention. The solid material grinding machine for realizing a solid material grinding method according to the present invention includes a grinding chamber 3, a working chamber 5 and a classifier 6 arranged sequentially from bottom to top, and the middle part of the grinding chamber 3 is provided with a grinding body 31, A lining plate 33 is provided on the side wall 32 of the grinding chamber corresponding to the grinding body 31; the grinding body 31 is a hollow structure, and the upper feeding port is connected with the feeding port of the working chamber 5, and a plurality of material throwing ports and hammering plates 35 are arranged in the circumferential direction; The grinding chamber 3 and the working chamber 5 are connected by multiple conduits 4, and the working chamber 5 is provided with an annular air inlet 52; the classifier 6 is sequentially connected with the spiral collector 10 and the bag filter 11, and the spiral collector 10 and the bag filter 11 The outlets of the outlets are respectively connected to the finished product outlets 12;

见图2,是本发明所述研磨体31的结构示意图。所述研磨体31沿圆周方向设有多个垂直或倾斜的锤击板35,每个锤击板35位于旋转方向一侧设1~10块耐磨块36,耐磨块36表面设有高耐磨合金层,锤击板35与研磨体31本体之间采用耐磨焊条焊接。See FIG. 2 , which is a schematic structural diagram of the grinding body 31 of the present invention. The grinding body 31 is provided with a plurality of vertical or inclined hammering plates 35 along the circumferential direction, and each hammering plate 35 is located on one side of the rotation direction to be provided with 1 to 10 wear-resistant blocks 36, and the surface of the wear-resistant blocks 36 is provided with a high The wear-resistant alloy layer, the hammering plate 35 and the body of the grinding body 31 are welded with a wear-resistant welding rod.

所述锤击板35成组设置,每组分为上锤击板35a和下锤击板35b,且上锤击板35a和下锤击板35b在圆周方向交错设置,上锤击板35a、下锤击板35b的部分或整体倾斜设置,倾斜角度为5°~30°。The hammering plates 35 are arranged in groups, each group is divided into an upper hammering plate 35a and a lower hammering plate 35b, and the upper hammering plates 35a and the lower hammering plates 35b are arranged alternately in the circumferential direction, the upper hammering plates 35a, A part or the whole of the lower hammer plate 35b is inclined, and the inclination angle is 5°-30°.

所述衬板33为密集排列的内凹弧形齿衬板,且表面设有高耐磨合金层。The liner 33 is a densely arranged concave arc-shaped tooth liner, and the surface is provided with a high wear-resistant alloy layer.

所述高耐磨合金层通过粘贴、涂敷或堆焊方式设置,高耐磨合金的牌号为YL8。The high wear-resistant alloy layer is set by pasting, coating or surfacing, and the grade of the high wear-resistant alloy is YL8.

所述研磨体31内沿圆周方向设多个弧形导流板37,弧形导流板37位于各物料甩出口之间。A plurality of arc-shaped deflectors 37 are arranged in the grinding body 31 along the circumferential direction, and the arc-shaped deflectors 37 are located between the outlets for throwing out materials.

所述成品出料器12为双向蛟龙输送机,出料口127设在螺旋收料器10和布袋除尘器11的出料接料口125、126之间,且成品出料器出料口127两侧输送叶片123、124的螺旋方向相反。The finished product discharge device 12 is a two-way Jiaolong conveyor, and the discharge port 127 is located between the discharge ports 125, 126 of the spiral receiver 10 and the bag filter 11, and the finished product discharge device discharge port 127 The helical directions of the conveying blades 123 and 124 on both sides are opposite.

所述分级器6为鼠笼式分级器。The classifier 6 is a squirrel cage classifier.

见图3,是本发明所述物料研磨机主体部分剖视图,物料研磨机的主体部分由研磨室3、工作仓5和分级器6组成,另外配备生产线必须的上料和出料装置。主体部分架设在主机架1上,研磨室3通过连接法兰34与主机架1连接并形成封闭空间。工作时,由安装在主机架1下方的主电机2通过轴套带动研磨体31转动,预破后的固体物料存放在原料仓8中,原料仓8下方设原料仓支架9,物料由物料输送装置7经进料口51进入工作仓5中。物料输送装置7可以是斗提机、皮带输送机或振动给料器等常规给料设备,图1中以皮带输送机为例。工作仓5下料口与研磨体31中部开设的接料口对接,这样物料经一次风选下落后直接进入研磨体31内并随之高速旋转,通过工作仓5上开设的环形进风口52同时可吸进空气,保证研磨体3内压力始终为正压状态,同时具有风冷机体的作用。研磨室底部开设排渣口,对研磨后剩余的料渣定期清除。See Fig. 3, which is a cross-sectional view of the main part of the material grinder of the present invention. The main part of the material grinder is composed of a grinding chamber 3, a working chamber 5 and a classifier 6, and is equipped with necessary feeding and discharging devices for the production line. The main body is erected on the main frame 1, and the grinding chamber 3 is connected with the main frame 1 through a connecting flange 34 to form a closed space. When working, the main motor 2 installed under the main frame 1 drives the grinding body 31 to rotate through the shaft sleeve, and the pre-broken solid material is stored in the raw material bin 8, and the raw material bin bracket 9 is arranged under the raw material bin 8, and the material is transported by the material The device 7 enters the working chamber 5 through the feed port 51 . The material conveying device 7 can be conventional feeding equipment such as a bucket elevator, a belt conveyor or a vibrating feeder, and a belt conveyor is taken as an example in FIG. 1 . The feeding port of the working chamber 5 is docked with the material receiving port opened in the middle of the grinding body 31, so that the material directly enters the grinding body 31 after a winnowing and then rotates at a high speed, and passes through the annular air inlet 52 set on the working chamber 5 at the same time. Air can be sucked in to ensure that the internal pressure of the grinding body 3 is always in a positive pressure state, and at the same time, it has the effect of air cooling the machine body. A slag outlet is provided at the bottom of the grinding chamber to regularly remove the remaining slag after grinding.

研磨体3本体由上导流板板310和下导流板311组成,锤击板35一端与研磨体3本体用耐磨焊条焊接,另一端伸出本体外,在起锤击作用的同时也可对离心抛出的物料起导向作用,使之与衬板33之间产生正向撞击,撞击力增大,同时物料抛出过程中的摩擦力也可对锤击板35起到冲刷作用,因此可防止“缓冲垫层”的产生,大幅度提高研磨效率。Grinding body 3 body is made up of upper deflector plate 310 and lower deflector plate 311, and one end of hammering plate 35 is welded with grinding body 3 body with wear-resistant welding rod, and the other end protrudes out of the body, and it also plays a role of hammering. It can play a guiding role for the centrifugally thrown material, so that there is a positive impact between it and the lining plate 33, and the impact force is increased. At the same time, the friction force in the process of material throwing can also play a role in scouring the hammering plate 35, so It can prevent the generation of "buffer layer" and greatly improve the grinding efficiency.

研磨室3的结构直接决定研磨效率和研磨质量,本发明中,锤击板35可以采用多种结构形式。如图2-1所示,研磨体3上设有3组锤击板35,每组锤击板35分别设上锤击板35a和下锤击板35b。上锤击板35a和下锤击板35b又可以设置为多种形式,如图2-1b中所示,下锤击板35b垂直设置,上锤击板35a主体垂直设置,但其上部倾斜设置。如图2-1c所示,上锤击板35a和下锤击板35b均倾斜设置,且倾斜方向相反。图2-1a是这两种方式锤击板35的正视图,每个锤击板35上都设有多块耐磨块36。如图2-2所示,研磨体3上设有3个锤击板35,每个锤击板35均倾斜设置(如图2-2b所示),且其上均设有多块耐磨块36(如图2-2a所示)。The structure of the grinding chamber 3 directly determines the grinding efficiency and grinding quality. In the present invention, the hammer plate 35 can adopt various structural forms. As shown in Figure 2-1, three sets of hammering plates 35 are provided on the grinding body 3, and each set of hammering plates 35 is provided with an upper hammering plate 35a and a lower hammering plate 35b. The upper hammering plate 35a and the lower hammering plate 35b can be set in various forms, as shown in Figure 2-1b, the lower hammering plate 35b is vertically set, the main body of the upper hammering plate 35a is vertically set, but its upper part is set obliquely . As shown in Fig. 2-1c, both the upper hammering plate 35a and the lower hammering plate 35b are inclined, and the inclination directions are opposite. Fig. 2-1a is the front view of these two hammering plates 35, and each hammering plate 35 is provided with a plurality of wear-resistant blocks 36. As shown in Figure 2-2, three hammering plates 35 are provided on the grinding body 3, and each hammering plate 35 is set obliquely (as shown in Figure 2-2b), and there are multiple wear-resistant plates on it. Block 36 (shown in Figure 2-2a).

衬板33也可以采用多种形式,如图2-1所示,衬板33采用密集设置的内凹弧形齿衬板,其与物料接触面大且接触时间长,能够进一步提高研磨效率。如图2-2所示,衬板33采用的是较为常见的齿状衬板,其加工相对简单。The lining plate 33 can also adopt various forms. As shown in Figure 2-1, the lining plate 33 adopts a densely arranged concave arc-shaped tooth lining plate, which has a large contact surface with the material and a long contact time, which can further improve the grinding efficiency. As shown in Figure 2-2, the liner 33 is a relatively common toothed liner, and its processing is relatively simple.

研磨体3本体内还设有弧形导流板37,使研磨体3旋转后产生螺旋上升的气流,将细颗粒向上运送并通过导管4进入工作仓5中,物料在工作仓5中在对冲气流作用下与空气充分混合淘析。The body of the grinding body 3 is also equipped with an arc-shaped deflector 37, so that the grinding body 3 rotates to generate a spiral air flow, and the fine particles are transported upwards and enter the working chamber 5 through the conduit 4. The materials are in the working chamber 5. Under the action of air flow, it is fully mixed with air for elutriation.

见图4,是本发明所述分级器的结构示意图。分级器6由电机61提供动力,经皮带传动装置62带动传动轴63高速转动,分级器6采用鼠笼式分级器原理,在传动轴63的圆周方向通过支撑板64固定有叶片转子65,旋转时通过叶片转子65间的空隙形成的气流通道对物料进行分级。顺利通过分级器6的物料即为合格成品,未通过的物料向下落入工作仓5中,并返回研磨室3内再次研磨。See Fig. 4, which is a structural schematic diagram of the classifier of the present invention. The classifier 6 is powered by the motor 61, and the transmission shaft 63 is driven to rotate at a high speed through the belt transmission device 62. The classifier 6 adopts the principle of a squirrel-cage classifier, and the blade rotor 65 is fixed by the support plate 64 in the circumferential direction of the transmission shaft 63, and rotates The material is classified through the airflow channel formed by the gap between the vane rotors 65. The materials that pass through the classifier 6 are qualified finished products, and the materials that fail to pass fall into the working chamber 5 and return to the grinding chamber 3 for further grinding.

见图5,是本发明所述双向蛟龙输送机的结构示意图。本发明所述成品出料器12可以采用双向蛟龙输送机12,出料口127设在螺旋收料器和布袋除尘器的出料口125、126之间,且成品出料器出料口127两侧输送叶片的螺旋方向相反。双向蛟龙输送机12的双向双片结构能够促使螺旋收料器10与布袋除尘器11中的成品充分混合以达到合理的颗粒级配。See Fig. 5, which is a structural schematic diagram of the two-way Jiaolong conveyor of the present invention. The finished product discharger 12 of the present invention can adopt two-way Jiaolong conveyor 12, and the discharge port 127 is located between the discharge ports 125, 126 of the spiral receiver and the bag filter, and the finished product discharge device discharge port 127 The helical directions of the conveying blades on both sides are opposite. The two-way two-piece structure of the two-way Jiaolong conveyor 12 can promote the full mixing of the finished products in the spiral receiver 10 and the bag filter 11 to achieve a reasonable particle gradation.

合格后的成品物料经分级器出口66和输送管进入螺旋收料器10收集,收集率可达到70%左右,另外与空气混杂的细颗粒由螺旋收料器10上部进入布袋除尘器11中进一步收集,螺旋收料器10和入布袋除尘器11收集到的成品物料均通过双向蛟龙输送机12统一输出。本发明中,由于螺旋收料器10和布袋除尘器11设在双向蛟龙输送机12的两侧,双向蛟龙输送机的出料口127设在螺旋收料器出料接料口125和布袋除尘器出料接料口126之间,因此双向蛟龙输送机螺旋叶片采用正向螺旋叶片123和反向螺旋叶片124两种旋向叶片,这样当电机121带动传动轴122转动时,由螺旋收料器和布袋除尘器出料口流出的物料同时向双向蛟龙输送机的出料口127集中并混合,从而提高了出料效率。The qualified finished materials enter the spiral collector 10 through the outlet 66 of the classifier and the conveying pipe for collection, and the collection rate can reach about 70%. In addition, the fine particles mixed with the air enter the bag filter 11 from the upper part of the spiral collector 10 for further cleaning. Collection, the finished materials collected by the spiral receiver 10 and the bag filter 11 are all output through the two-way Jiaolong conveyor 12 in a unified manner. In the present invention, since the spiral receiver 10 and the bag filter 11 are arranged on both sides of the two-way Jiaolong conveyor 12, the discharge port 127 of the two-way Jiaolong conveyor is arranged at the outlet 125 of the spiral receiver and the bag dust collector. Between the discharge port 126 of the device, the helical blades of the two-way Jiaolong conveyor adopt two kinds of rotating blades, the forward helical blade 123 and the reverse helical blade 124, so that when the motor 121 drives the transmission shaft 122 to rotate, the material is collected by the helical The material flowing out of the discharge port of the bag filter and the bag filter is concentrated and mixed to the discharge port 127 of the two-way Jiaolong conveyor at the same time, thereby improving the discharge efficiency.

以下实施例在以本发明技术方案为前提下进行实施,给出了详细的实施方式和具体的操作过程,但本发明的保护范围不限于下述的实施例。下述实施例中所用方法如无特别说明均为常规方法。The following examples are carried out on the premise of the technical solutions of the present invention, and detailed implementation methods and specific operation processes are provided, but the protection scope of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

【实施例1】【Example 1】

所研磨物料为滑石渣子,具体工艺参数见表1;The ground material is talc slag, and the specific process parameters are shown in Table 1;

表1Table 1

分析器转速Analyzer speed 280转/分280 rpm 550转/分550 rpm 835转/分835 rpm 1110转/分1110 rpm 成品粒度Finished product size 800目800 mesh 1000目1000 mesh 1250目1250 mesh 1500目1500 mesh 产量Yield 2吨/小时2 tons/hour 1.5吨/小时1.5 tons/hour 0.9吨/小时0.9 tons/hour 0.5吨/小时0.5 tons/hour

【实施例2】[Example 2]

所研磨物料为电熔镁,具体工艺参数见表2;The grinding material is fused magnesium, and the specific process parameters are shown in Table 2;

表2Table 2

分析器转速Analyzer speed 280转/分280 rpm 成品粒度Finished product size 200目200 mesh 产量Yield 1.5吨/小时1.5 tons/hour

【实施例3】[Example 3]

所研磨物料为烧结镁砂,具体工艺参数见表3;The ground material is sintered magnesia, and the specific process parameters are shown in Table 3;

表3table 3

分析器转速Analyzer speed 280转/分280 rpm 成品粒度Finished product size 200目200 mesh 产量Yield 1.5吨/小时1.5 tons/hour

以上3个实施例中所有成品通过率均达到95%以上。In the above three embodiments, the pass rates of all finished products all reach more than 95%.

Claims (10)

1. a solid material Ginding process, is characterized in that, abrasive body High Rotation Speed produces ascending air, grinding chamber top working bin has charging concurrently and wind mixes elutriation function, and working bin bulkhead offers circular air inlet mouth, make to remain malleation in abrasive body, and provide wind to mix elutriation wind; Solid material after pre-broken enters grinder from working bin charging aperture, enters in abrasive body after first time selection by winnowing; Under the centrifugal action of the abrasive body of High Rotation Speed, material throws away from the material abrasive body that opening's edge is radial is clashed into broken by the liner plate being thrown grinding chamber sidewall, after rebounding with newly enter material and to liquidate percussion fragmentation; Large granular materials falls by gravity, bounce effect, after abrasive body hammering plate high-energy-rate hammering, grinding, material upwards enters working bin by conduit rotate the airflow function formed at abrasive body under, classifier is entered after mixing elutriation by wind, the finished product materials reaching granularity requirements is by the discharging of finished product discharger after spiral collector and sack cleaner are collected, and the material not reaching granularity requirements returns grinding chamber and again carries out crushing grinding.
2. a kind of solid material Ginding process according to claim 1, is characterized in that, when abrasive body is broken, the maximum line velocity of material is 120m/s, and the granularity of finished product materials is realized by the motor speed of adjustment clasfficiator.
3. for realizing the solid material grinder of a kind of solid material Ginding process according to claim 1, it is characterized in that, comprise the grinding chamber, working bin and the clasfficiator that set gradually from the bottom to top, in the middle part of described grinding chamber, be provided with abrasive body, the grinding chamber sidewall corresponding with abrasive body establishes liner plate; Abrasive body is hollow structure, and top material receiving port is connected with working bin feed opening, is circumferentially with multiple material and throws away mouth and hammering plate; Grinding chamber and working bin are by multiple tubes connection, and working bin is provided with circular air inlet mouth; Clasfficiator connects spiral collector and sack cleaner successively, and spiral collector is connected finished product discharger respectively with the discharging opening of sack cleaner; The charging aperture of working bin connects raw material cabin additionally by device for transporting objects.
4. a kind of solid material grinder according to claim 3, it is characterized in that, described abrasive body is along the circumferential direction provided with multiple vertical or hammering plate of tilting, each hammering plate is positioned at direction of rotation side and establishes 1 ~ 10 piece of wear-resistant block, wear-resistant block surface is provided with high-wear-resistant alloy layer, adopts wear resistance electrode to weld between hammering plate with abrasive body body.
5. a kind of solid material grinder according to claim 3 or 4, it is characterized in that, described hammering plate is arranged in groups, every component is upper hammering plate and lower hammering plate, and upper hammering plate and lower hammering plate are crisscross arranged at circumferencial direction, a part or whole part of upper hammering plate, lower hammering plate is vertical or be obliquely installed, and angle of inclination is 5 ° ~ 30 °.
6. a kind of solid material grinder according to claim 3, is characterized in that, described liner plate is the indent arc-shaped gear liner plate of dense arrangement, and surface is provided with high-wear-resistant alloy layer.
7. a kind of solid material grinder according to claim 4 or 6, is characterized in that, described high-wear-resistant alloy layer is arranged by stickup, coating or built-up welding mode, and the trade mark of high-wear-resistant alloy is YL8.
8. a kind of solid material grinder according to claim 3, is characterized in that, along the circumferential direction establish multiple arc deflector in described abrasive body, arc deflector throws away between mouth at each material.
9. a kind of solid material grinder according to claim 3, it is characterized in that, described finished product discharger is two-way flood dragon conveyer, and discharging opening is located between spiral collector and the discharging opening of sack cleaner, and the hand of spiral of finished product discharger discharging opening both sides conveying blade is contrary.
10. a kind of solid material grinder according to claim 3, is characterized in that, described clasfficiator is squirrel-cage clasfficiator.
CN201510312768.7A 2015-06-09 2015-06-09 A kind of solid material Ginding process and solid material grinder Expired - Fee Related CN104941769B (en)

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CN105289820A (en) * 2015-11-06 2016-02-03 嘉兴市高正高分子材料有限公司 Mixing processing pulverizer
CN105970769A (en) * 2016-06-03 2016-09-28 徐州徐工筑路机械有限公司 Horizontal extending type finished bituminous mixture cabin
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CN107552204B (en) * 2017-09-28 2024-04-30 天津西敦粉漆科技有限公司 Air classifying mill reducing mechanism
CN109225465A (en) * 2018-10-11 2019-01-18 甘肃驰奈生物能源系统有限公司 A kind of kitchen garbage breaking, screening, selection by winnowing integrated equipment
CN110743661A (en) * 2019-10-29 2020-02-04 广东省农业科学院 Efficient milling machine
CN110653044A (en) * 2019-11-07 2020-01-07 中铁工程装备集团有限公司 Novel mill equipment
CN111298936A (en) * 2019-12-24 2020-06-19 广西路桥工程集团有限公司 A system for grinding and processing machine-made sand tailings
CN111715355A (en) * 2020-06-23 2020-09-29 东莞市五全机械有限公司 Honeycomb mill production line device and production method
CN118371296A (en) * 2024-06-25 2024-07-23 河南中宝工程管理服务有限公司 Building rubbish crushing apparatus
CN118371296B (en) * 2024-06-25 2024-08-30 河南中宝工程管理服务有限公司 Building rubbish crushing apparatus

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