粉体造粒技术作为粉粒体过程处理的一个最主要分支，随着环保需求和生产过程自动化程度的提高，其重要性日益彰显。“粉状产品颗粒化”已成为世界粉体后处理技术的必然趋势。对粉状产品进行颗粒的强度加工，其意义主要体现在三大方面：
powder granulation technology as a mainbranch of the powder process, with the increase of environmentalprotection requirements and the degree of automation ofproductionprocess, its importance is increasingly evident. powder productshas become an inevitable trend in the world of postprocessingtechnology. the strength of the powder product is processed,andits significance is mainly reflected in three aspects:
一、降低粉尘污染，改善劳动操作条件。
one, to reduce dust pollution, improvelabor operation conditions.
二、满足生产工艺要求，如提高孔隙率和比表面积，改善热传递等。
two, to meet the requirements ofproduction process, such as improve the porosity and specificsurface area, improve heat transfer, etc..
三、改善产品的物理性能（如流动性、透气性、堆密度）避免后续操作过程（干燥、筛分、计量）和使用过程（计量、配料等）出现偏析、脉动、结块、架桥等不良影响，减少污染、改善外观、改善流动性、便于贮存和运输、控制溶解度、控制孔隙率和比表面积等等，为提高生产和使用过程的自动化以及密闭操作创造了条件。
three, to improve the physicalproperties of the products (such as liquidity, permeability, bulkdensity) to avoid subsequent operation process (drying, screeningandmeasurement) and use process (measuring, mixing, etc.)segregation, pulsating, caking, bridging adverse effects appear,reduce pollution, improve the appearance, improve the liquidity,easy storage andtransportation, solubility control, to control theporosity and specific surface area and so on, create the conditionsfor improving the production and use of process automation andclosedoperation.
干法滚压造粒机、干粉挤压造粒机dh系列干法辊压造粒机是采用干法辊压工艺技术，对含水量≤5%的粉状物料进行压缩成片或块状，再经破碎整粒、筛分工艺，使片块状物料变成符合使用要求的颗粒状物料。干法辊压造粒主要靠外部加压方式，使物料强制通过两个相对旋转辊轮间隙，强制压缩成片块状，在辊压过程中，物料的实际密度能增大1.5~3倍，从而达到－定的颗粒强度要求。
dh series dry rolling granulator is thedry rolling technology and compressed into tablets or block thecontent is less than or equal to 5% of the powderymaterialcontaining, crushing granulation and sieving, massive materialsinto in accordance with the requirements of granular materials. dryrolling granulator mainly rely on external pressure, thematerialis forced through the gap between two relatively rotating rollers,forced compression block into a film, in the rolling process, theactual density of material can be increased 1.5 times, inorder toreach the demands of granular strength.
干法滚压造粒机、干粉挤压造粒机工作原理workingprinciple
原料经定量加料器均匀送入喂料斗,压实机利用带有穴眼孔的成对轧辊，彼此留有一定间隙，两者以相同的转速作反向旋转。其中一组轧辊轴承座在机架内不动，而另一组轧辊轴承座则在机架导轨上游动，藉助液压缸施压使彼此紧靠。轧辊表面上有规则地排列许多形状、大小相同的穴眼孔，且波谷对准波谷。而此时干粉状物料从两轧辊上方连续均匀地靠自重及强制喂料进入两轧辊之间，物料先作自由流动，进入咬入区后被轧辊逐渐咬入波谷。随着轧辊的连续旋转，物料占有的空间逐渐减少而被逐步压缩，并达到成型压力**值。随后则压力逐渐降低，所压得之型块因弹性回复加之自重而脱落穴眼孔而进入碎整粒、筛分装置，所得成品为粒状合格产品，进行过秤包装。而粉料口出来的细粉料和不合格的超大颗粒则由返料绞龙重新进入提升机加料口随同新鲜物料混合加入预加料斗而进入下一轮工艺流程。
raw materials by quantitative feederevenly into the feeding hopper, compaction machine is used with ahole of the eyelet pairs of rollers with each other to leave agap,both with the same speed as reverse rotation. one group of rollerbearing housings is not moving in the frame, while the other groupof roller bearing housings are moving on the rack guide rail,andthe hydraulic pressure cylinder is pressed to close the other. rollon the surface arranged many shapes, the same size and alignmenthole eyelet, trough trough. but this time dry powder materialfromthe top of the two roller continuous evenly by gravity and forcedfeeding into the two rollers, the material to flow freely, in bitezone is roll gradually bite into the trough. with thecontinuousrotation of the roll, the space of the material possessiongradually decreases and is gradually compressed, and reaches themaximum value of the molding pressure. then pressure decreases,thepressure type block due to elastic recovery coupled with the weightoff hole eyelet into pieces of whole grain, a screening device, theresulting refined granular qualified products, weighingpackaging.the fine powder material and the non qualified super large grainare from the back to the ground to the lifting machine feeding portwith the fresh material mixed with the pre feeding hopperand enterthe next technological process.
干法滚压造粒机、干粉挤压造粒机特点characteristic
◆ 无需任何添加剂，干粉直接造粒；
- without any additives, drygranulation;
◆颗粒强度可以调整，通过调节轧辊的压力，控制成品强度；
the strength of the particles can beadjusted, by adjusting the pressure of roller, control of the finalstrength;
◆循环操作，实现连续生产，成品产量高；
the cycle operation, continuousproduction, high yield of finished products;
◆物料经机械压力强制压缩成型，无需任何添加剂，产品纯度得到保证。
the material through mechanical forcecompression molding, without any additives, the purity of theproduct is guaranteed.
◆干粉直接造粒，无需后续干燥过程，更有利于现有生产流程的衔接和改造。
the dry granulation, without furtherdrying process, existing production process is easy to convergenceand transformation.
◆颗粒强度高，堆积比重的提高较其它造粒方式都更为显著，尤其适合于增加产品堆积比重的场合。
] high granule strength, the increasein the proportion of accumulation than other granulation are moresignificant, especially suitable for to increase the proportionofproduct accumulation of occasions.
◆适应原料范围广，颗粒强度可根据不同物料自由调整。
it has wide range of raw material, thestrength of the particles can be freely adjusted according todifferent materials.
◆结构紧凑、维修方便、操作简单、工艺流程短、能耗低、效率高、故障率低。
it has the advantages of compactstructure, convenient repair, simple operation, short process, lowenergy consumption, high efficiency, low failure rate.
◆可控制环境污染，减少粉体浪费和包装成本，提高产品运输能力。
we can control the environmentalpollution, reduce waste and powder packaging costs, improve producttransport capacity.
◆加料和喂料装置采用变频无级调整控制，自动化程度高，可实现一人多机控制，具有劳动强度低及 可长期连续运转等特点。
* feeding device is controlled by thefrequency conversion stepless speed regulating, high degree ofautomation, to achieve a multi machine control, has thecharacteristicsof labor intensity is low and the continuousoperation for a long time and so on.
◆主要传动部件均采用优质合金材料。不锈钢材料、钛材、铬和其他表面合金制作大大提高了耐磨损、耐腐蚀、耐高温及耐压能力，使该机具有较长的使用寿命。
the main driving parts are made of highquality alloy material. stainless steel materials, titanium,chromium and other surface alloy production greatly increased thewearresistance, corrosion resistance, high temperature andpressure, so that the machine has a long service life.
干法滚压造粒机、干粉挤压造粒机工艺流程：
technological process
干粉通过螺旋输送机、皮带机或人工搬运进入提升机的原料仓，由斗式提升机将原料粉末送人振动式过度料仓，经过定量加料装置将物料均匀地加入变频式强制喂料机，对物料进行脱气预压缩，经预压缩的物料被压人两个相对的压辊中间进行压实，被压实的条片物料自动脱槽后进入破碎，被粉成大小不均的颗粒，然后进入双刀造粒机进行修整，修整后的颗粒通过分筛，产品颗粒经过打包或用输送机输入成品料仓，筛分下来的粉状物料经回料装置输入原料提升机，进行二次加工。
dry powder enters through the screwconveyor, belt machine or manual handling lifting machine from rawmaterial warehouse, bucket elevator will give excessive vibrationtypepowder silo, after the material quantitative feeding device isadded evenly frequency type forced feeding machine, materialdegassing pre compression, pre compression material is pressed twothe middleroller compaction, automatic strip material removalgroove compaction after entering into particles was broken, powderuneven size, then trimmed into the double knife granulator, trimmedparticlesthrough the sieve, the product package or conveyorparticles after input finished product bin, powder materialscreening down the feed back device input raw material hoist, twoprocessing.
干法滚压造粒机、干粉挤压造粒机机组结构unit structure
1、 预加料器：带有机械振动的加料斗,自动控制 ,定时振动 。
1, pre feeder: with mechanica*ibration hopper, automatic control, timing vibration.
2、定量加料器：采用变频调速，确保加料精度。
2, quantitative feeder: frequencycontrol, to ensure the accuracy of feeding.
3、强制喂料螺旋加料斗：采用变频调速电机、锥螺旋、搅拌刀齿及带视镜窗的锥形加料斗以及喂料口组合等组成，其作用是进一步完成脱气并进行压力加料。
3, forced feeding screw feeding hopper:the frequency speed regulating motor, spiral bevel, stirring knifeteeth with glass window of the conical hopper and the feedingportof the combination etc. composition, its role is to further achievedegassing and feed pressure.
4、轧片机：由左右固定轴承座及滑动轴承座、框架结构、二根合金钢轧辊、二只液压油缸及电动自动泵站以及硬齿面专用减速器与主电机组成轧片主机。
4, rolling machine is composed of aleft and a fixed bearing seat and the sliding bearing seat, framestructure, two root alloy steel roller, two hydraulic oil cylindersandautomatic electric pumping station and hardened specialdeceleration device and the main motor rolling maincomposition.
5、碎整粒机：由切碎箱体、切碎主轴、专用旋转刀片构成碎整粒室由电机带动主轴作高速旋转,将挤压成形的物料破碎整粒。
broken 5, the whole cutter: by cuttingup box, chopped spindle and special rotating blade form brokenwhole grain room by the motor drives the main shaft forhigh-speedrotation, the extrusion of material crushing whole grain.
6、振动分级筛：带防堵网装置，方便清理筛网，由碎整机出来的碎粒粉料经该机筛分成粒状产品及回用粉料。
6, vibration classification screen:with anti blocking device, easy to clean the screen, by the brokenmachine out of the crushed powder material by the machine sieveinto agranular product and return with powder.
7、回料绞龙：将振动分级筛返回的不合格粉状物料输送到加料提升机。
7, back to the material of the dragon:the vibration of the back of the classification of non qualifiedpowder material conveying to the feeder.
8、斗式提升机：上下链轮采用组装式结构，用于输送物料。
8, bucket type lifting machine: theupper and lower sprocket with the assembly structure, for conveyingmaterials.
9、电控柜：由电控箱体、变频调速控制器、电流表、电压表、指示灯、按钮开关、电压转换开关等电气元器件组成，所有电器集中控制操作。
9, electric control cabinet, composedof electric control cabinet, frequency conversion speed controller,current meter, voltage meter, indicator light, a buttonswitch,voltage conversion switch and other electrical components, all theelectric centralized control operation.
干法滚压造粒机、干粉挤压造粒机应用物料applicationmaterials
适用物料  applicable material
肥料：硫酸钾、氯化钾、俄罗斯红钾、复混肥、氯化铵、硝酸钾、磷酸一铵、磷酸二铵、硫酸铵、碳酸氢铵。
fertilizer: potassium sulfate,potassium chloride, potassium of russia red, compound fertilizer,ammonium chloride, potassium nitrate, phosphoric acid ammonium,diammoniumphosphate, ammonium sulfate, ammonium hydrogencarbonate.
粉体材料：抗氧剂、溴氯海因、氰化钠、二氯异氰尿酸钠、三氯异氰尿酸钠、氰尿酸、漂粉精、氧化锌、氧化铅、碳酸钾、碳酸锶、氯化钙、磷酸氢钙、偏硅酸钠、正硅酸钠、冰晶石、氟化铝、刹车粉、橡塑助剂、白炭黑、铝酸钙、重钙、普钙、光卤石、磷矿粉、金属粉末、填料、饲料添加剂、砒虫啉、烟酸、烟酸胺、医药中间体、炼钢助剂、融雪剂、膨润、氧化铝粉、磷石膏、脱硫石膏、选矿剂、环保材料等。
powder material: antioxidant, brominechlorine hydantoin, sodium cyanide, dichloro isocyanurate uric acidsodium, trichloro isocyanuric acid sodium, cyanuric acid,bleachingpowder, zinc oxide, lead oxide, potassium carbonate, strontiumcarbonate, calcium chloride, calcium hydrogen phosphate, sodiumsilicate, sodium silicate, cryolite, aluminum fluoride,brakepowder, rubber additives, white carbon black, aluminum acidcalcium, calcium carbonate, calcium superphosphate, carnallite,phosphorite powder, metal powder, filler, feed additives andarsenoliteof imidacloprid, nicotinic acid, nicotinic acid amine,pharmaceutical intermediates, steelmaking auxiliary, snowmeltagent, bentonite, alumina powder, phosphorus gypsum,desulfurization gypsum, dressingagent, environmental protectionmaterial.
干法滚压造粒机、干粉挤压造粒机应用举例applicationexamples
物料名称 规格型号 粒度要求（mm） 产量（kg/h）
氯化钾、俄罗斯红钾 dh360、dh450、dh650 2.0~4.751000~1500、2000~2600、3200~4500
硫酸钾 dh360、dh450、dh650 2.0~4.751000~1300、2000~2500、3000~4500
npk复混肥 dh360、dh450、dh650 2.0~4.75900~1500、1800~2600、3000~4500
冰晶石 dh360、dh450、dh650 2.0~4.751000~1500、2000~2600、3200~4500
氯化铵、硫酸铵 dh360、dh450、dh650 2.0~4.75800~1000、1800~2500、3100~4600
抗氧剂 dh360 0.3~2.0 300~400
氧化锌 dh360 1.5~2.5 350~500
氰化钠 dh360 1.5~6.0 800~1000
炼钢助剂 dh360 橄榄状 1000~1200
融雪剂 dh360 2.0~7.0 800~1000
溴氯海因 dh2401.5~6.0~300
医药中间体 dh240 0.5~2.0~200
环保中间体 dh240 8.0~15.0 ~500
技术参数technical parameters
型号model dh360 dh450 dh650 dh800dh1000
轧辊直径（mm） φ360 φ450 φ650 φ800 φ1000
有效使用宽度（mm） 170-230 190-280 290-330380-450 500
轧辊转速 (rpm) 10-25 10-25 10-25 10-2510-20
**成型压力(kn) 800 1300 2100 2900 3500
轧片**厚度(mm) 8 12 16 25 35
轧片产量(kg/h) 1600 3000 6000 6000
成品产量(kg/h) 900-1300 1800-2500 -8000 13000-16000
成品粒度(mm) 0.5-6 0.5-6 0.5-6 0.5-60.5-6
主机功率(kw) 30-37 55-75 90-110 210-250315
装机总容量(kw) 55 90 175 298 450
外形尺寸(l.w.h.) 2350×2000×26002600×2200×2900 3600×2800×3200 4200×3500×3500 3800×3500×3800
设备总重量(t) 10 15 25 33 45
注意：轧片产量、成品产量为参考值，网板据物料的性质确立。
note:  rolling yield, yield offinished products for reference, according to the materialproperties of the establishment of board.

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