筛

Preservation of ethmoid bulla, opening the frontal sinus mostly keep away from anterior ethmoid artery and cribriform roof, this bring down the risk of injuries to anterior ethmoid artery and cribriform roof.

保留筛泡，在筛泡前开放额窦多数情况下可以避开筛前动脉以及筛顶，降低筛前动脉出血和损伤筛顶的风险。

Results the nipple surface blood was from central retinal artery,sieve plate former district,sieve plate district and postzone were from short posterior ciliary arteries.sieve plate postzone caliber was the thickest,the surface was the next,sieve plate prezone and sieve plate district were the smallest.conclusion the difference of blood capillary caliber in nipple prompts ischemic lesions occur easily in sieve plate prezone and sieve plate district.

结果 视乳头的血供除表层来自视网膜中央动脉外，其余筛板前区、筛板区和筛板后区主要来自睫状后短动脉。筛板后区口径最粗（7.3±1.4）μm，表层次之（6.2±1.3）μm，筛板前区及筛板区最细（4.9±0.7）μm，（5.0±0.8）μm。结论视乳头各层毛细血管口径不同，提示筛板前区及筛板区容易发生缺血性病变。

Leading products are: ZSG series efficient heavy screen, GQMS high rate of powerful special screening of coal, such as thick oval Shaker, YA type YK-round vibration sieve, SZR series of thermal mineral shaker, MZS series of pulverized coal shaker, ZWS vibration Network Screen, K-type reciprocating to the coal machine, ZFB series of anti-blocking, DKS granular urea screening machines, ZG series motor vibrating feeder, GZD electromagnetic vibrating feeder, the feeder disk, LS, GX-screw conveyor, PL, D-type bucket elevator, DJ, JB-steep, vertical belt with corrugated wall machines, mobile ZP-belt conveyor, Gechongfeibiao structural design and fabrication.

主导产品有：ZSG系列高效重型筛、GQMS高幅强力煤炭专用筛、椭圆等厚振动筛、YA型、YK型圆振筛、SZR系列热矿振动筛、MZS系列煤粉振动筛、ZWS振网筛、K型往复给煤机、ZFB系列防闭塞、DKS大颗粒尿素筛分机、ZG系列电机振动给料机、GZD电磁振动给料机、圆盘给料机、LS、GX型螺旋输送机、PL、D型斗式提升机、DJ、JB型大倾角、垂直波状挡边皮带机、ZP型移动式胶带输送机、各种非标结构件的设计及制造。业务覆盖全国各地，远销国外。

Leading products are: ZSG series efficient heavy screen, GQMS high rate of powerful special screening of coal, such as thick oval Shaker, YA type YK-round vibration sieve, SZR series of thermal mineral shaker, MZS series of pulverized coal shaker, ZWS vibration Network Screen, K-type reciprocating to the coal machine, ZFB series of anti-blocking, DKS granular urea screening machines, ZG series motor vibrating feeder, GZD electromagnetic vibrating feeder, the feeder disk, LS, GX-screw conveyor, PL, D-type bucket elevator, DJ, JB-steep, vertical belt with corrugated wall machines, mobile ZP-belt conveyor, Gechongfeibiao structural design and fabrication.

主导产品有：ZSG系列高效重型筛、GQMS高幅强力煤炭专用筛、椭圆等厚振动筛、YA型、YK型圆振筛、SZR系列热矿振动筛、MZS系列煤粉振动筛、ZWS振网筛、K型往复给煤机、ZFB系列防闭塞、DKS大颗粒尿素筛分机、ZG系列电机振动给料机、GZD电磁振动给料机、圆盘给料机、LS、GX型螺旋输送机、PL、D型斗式提升机、DJ、JB型大倾角、垂直波状挡边皮带机、ZP型移动式胶带输送机、各种非标结构件的设计及制造。

ZSM two-drum pulse low net work of the screen, pulp pressure from the top of the screen to cut into the screen, the two fall in the middle drum sieve, sieve in the drum inside and outside of the pressure difference and the dual-rotor rotary-wing together, qualified fiber Through the inside and outside the drum screen after screen to the body at the bottom of the pool, and then by the good plasma discharge tube machine, the screen remained in the dark between the flow of rough slurry residue by the rotor and driven together to drum sieve under the tailings from the slot after the Slag discharge pipe.

ZSM双鼓式低脉冲网前筛工作时，纸浆从压力筛的上部切向进入筛体，流到两个筛鼓中间，在筛鼓内外的压力差及双旋翼转子的共同作用下，合格纤维通过内、外筛鼓后汇集到筛体底部，然后经良浆管排出机外，留在筛鼓之间的粗渣受到浆流和旋翼的推动，汇聚到筛鼓下的尾渣槽后从排渣管排出。

Low pulse before sift network operating principles : the use of double - sieve drum aircraft design; Work, pulp before sift upper tangent pressure the network into; Pulp the filter into the upper body of the dle two filter drum, double tilt-rotor rotary rotors, while the centrifugal force and centripetal forces role, through good mix inside and outside pool in sieve sieve drum body low extremity good mix of outflow; pulse in the tilt-rotor rotary drum filter

低脉冲网前筛工作原理：该机采用双筛鼓设计；工作时，浆料从网前筛上部切线压力送入；浆料从筛体上部流入到两个筛鼓中间，在双旋翼转子旋转时产生的离心力和向心力的同时作用下，良浆通过内、外筛鼓汇集于筛体下端的良浆管流出；脉冲旋翼在旋转时筛鼓不会赌赛，浆渣受转子旋转产生的轴向推动力，向下流送的同时被浓缩并逐步移到排渣口。

Low pulse before sift network operating principles : the use of double - sieve drum aircraft design; Work, pulp before sift upper tangent pressure from the network into; Pulp from the filter into the upper body of the middle two filter drum, double tilt-rotor rotary rotors, while the centrifugal force and centripetal forces role, through good mix inside and outside pool in sieve sieve drum body low extremity good mix of outflow; pulse in the tilt-rotor rotary drum filter

低脉冲网前筛工作原理：该机采用双筛鼓设计；工作时，浆料从网前筛上部切线压力送入；浆料从筛体上部流入到两个筛鼓中间，在双旋翼转子旋转时产生的离心力和向心力的同时作用下，良浆通过内、外筛鼓汇集于筛体下端的良浆管流出；脉冲旋翼在旋转时筛鼓不会赌赛，浆渣受转子旋转产生的轴向推动力，向下流送的同时被浓缩并逐步移到排渣口。

The original Wing Dragon Mine Screen Factory - specializing in the production of stainless steel welding-type ore screen, sieve slit Article films, sieve, sieve basket, sieve vibration welding, composite mesh, high frequency sieve, sieve cones, curved screen, jig plate, punch plate, polyurethane plate, rubber plate section bar, stainless steel sets of Nets, nylon mesh sieve tablets high intensity, and building welded mesh, steel grating Net, Net oil with steel, aluminum Nets, Nets punching plate, welded wire mesh, stainless steel net, vapor-liquid filters, welding filter cartridges, stainless steel sintered Net, filter plate, metal filter.

河北省安平县永龙矿山设备有限公司原永龙矿筛网厂）-专业生产不锈钢熔接式矿筛网、条缝筛片、筛板、筛篮、焊接式振动筛网、复合筛网、高频筛、圆筒筛、弧形筛、跳汰机筛板、冲孔筛板、聚氨脂筛板、橡胶扎条筛板、不锈钢网套、尼龙筛片等高强度筛网，及建筑焊接网片、钢格板网，石油用钢板网，铝板网、冲孔网板、电焊网、不锈钢网、汽液过滤网，焊接过滤筒、不锈钢烧结网、过滤盘、金属滤芯。

An effective sieve size (ie, sieve pore size and the entire screen surface area ratio) larger, then the screen surface of the unit area of higher productivity and screening efficiency.

对于一定的物料而言，筛子的生产率和筛分效率决定于筛孔尺寸。生产率取决于筛面宽度，筛面宽生产率高。筛分效率取决于筛面长度，筛面长筛分效率高。一般长宽比为2。

With the consideration of various factors affecting on the screening effect,a screening model for drilling fluid shale shaker had been established.

利用流体力学的基本原理，对钻井筛筛面上钻井液的流动特点进行了研究；在综合考虑有关参数对钻井筛筛分影响的基础上，建立了钻井筛的筛分模型，给出影响钻井筛处理量有关因素之间的定量关系；运用平均值法对筛分方程的求解进行了探讨；应用有限差分方法建立了筛分方程的仿真模型，并编写了钻井筛处理量的计算机仿真程序。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。