1, crushing and vibrating sieve frame tube for thick walled seamless steel pipe and stiffened plate are changed into a groove forms, enhance the overall strength of the body of the sieve, and the rib plate from the original 7 root changed to 3 root, increased by nearly 30% of the screening area. Through the transformation, greatly improve the screening efficiency, shorten the driving time, the annual electricity saving 127 thousand kW, h, worth 63 thousand yuan.

2、将破碎系统原8#、11#破碎产品运输皮带合并，用长传动丝杠作牵引装置，对拉紧装置进行改造，解决了原11皮带的跑偏和打滑问题，简化了操作，每年可节约备件和电能消耗约5.2万元。将2#、5#圆锥破碎机给料皮带带速由1.25m/s降至1.0m/s，，皮带宽度由650mm加宽至800mm，降低了手选除杂难度和圆锥破碎机的故障率，提高了圆锥破碎机的破碎效率。

2, the broken system 8#, 11# broken product transport belt with, with long screw drive as the traction device and the tensioning device transformation to solve the original 11 belt deviation and slippage problem and simplify the operation, the annual saving of spare parts and electrical energy consumption of about 5.2 million yuan. Will 2#, 5# cone crusher to conveyer belt speed by 1.25m/s fell 1.0m/s., belt width 650mm widened to 800mm, reduce the hand selected impurity removal difficulty and taper crushing machine fault rate, improve the efficiency of the machine broken cone crusher.

3、选用1台MQG2700×3600型球磨机代替原来的3台MQG2100×2200型球磨机，与1台2FLG－2000螺旋分级机配合，简化了磨矿操作，节省了备件库存费用，稳定了人选矿浆的浓度和细度。

3, use a MQG2700 x 3600 type ball mill instead of the original 3 MQG2100 x 22 type ball mill, and a 2FLG - 2000 spiral classifier with, simplifies the grinding operation, save the spare parts inventory costs, stable candidate pulp concentration and fineness.

4、精矿再磨系统选用1台MQY2100×3000型球磨机代替原2台MQY1500×3000型球磨机；分级设备改用聚氨酯材质的旋流器组，配有压力显示装置，安装维护方便，分级效率高于原旋流器5个百分点左右。安装使用后，再磨细度合格率提高了12个百分点，－0.043mm含量提高了4个百分点，氰化回收率提高了0.28个百分点。

4, concentrate regrinding system of a MQY2100 x 3000 type ball mill is selected to replace the original two MQY1500 x 3000 type ball mill; grading equipment use polyurethane material of cyclone, equipped with a pressure display device, convenient installation and maintenance, the classification efficiency higher than the original cyclone about 5 percentage points. After the installation and the use of regrinding fineness of qualified rate of 12%, the content of 0.043mm improve 4 percentage points, the cyaniding recovery rate of 0.28 percentage points higher.

5、先后对氰化作业的φ12m单层浓密机、洗涤作业的西12m三层浓密机进行了高效化改造，给浓密机安装给矿缓冲脱气槽，并在中心给矿处安装给料竖桶，桶下安装扩散板。改造后浓密机运行稳定，贵液跑浑现象消失，回水质量得到了很大改善。

5, successively on Cyanidation of 12m monolayer thick machine, washing operation of West 12m three layer thickener were efficient transformation, to thickener installation to mine buffer degassing tank, and in the center to mineral to the vertical barrel installed, barrel installation plate diffusion. After the transformation, the thickening machine runs stably, and the phenomenon of running water in your liquid has disappeared, and the quality of the backwater has been improved greatly.