JT型鋸齒波跳汰機 Sawtooth wave jig

JT型鋸齒波跳汰機是一種新型的跳汰機是現代重選設備之一，目前已形成系列推廣使用。這種跳汰機采用電磁無級調速，鼓動均勻，礦流平穩，對寬別入選物料適應性強，對中細粒選別效果好，且省水，由于其處理能力大，選別粒度范圍廣，操作維護簡單，主要于選別砂金、鎢礦、錫礦、赤鐵礦和海濱砂礦。

JT sawtooth wave jig is a new type of jigs. It is one of the types  of modern gravity separation equipment. New it has formed series whose use is  expanded. Such type of jig uses electromagnetic stepless speed regulation which  features even rotation, smooth ore current, strong adaptability to selected  materials, good separation effects of medium and fine grains,  and water saving. Since such jigs have  large handling capacity and wide range of sorting particle sizes as well as are  easy for operation and maintenance, they are mainly used to sort alluvial gold,  tungsten ores, tin ores, hematite, and beach placer.

傳統的跳汰機多為圓周偏心驅動，其跳汰脈動曲線多為正弦波形，由隔膜運動產生的上升、下降水流速度和作用時間基本相同，因此，不利于跳汰床層松散及礦粒按比重分層，從而影響了設備的選別比和回收率。

Traditional jigs mostly adopt circumferential off-center drive.  Their jigging pulsation curves are mostly sine waves. The ascending and  descending water flow velocity and action time produced by septal movement are  basically the same. These hinder the loosening of jig beds and layering of ore  grain according to gravity. Therefore, the sorting ratio and recovery rate of  equipment are affected.

鋸齒波跳汰機是根據跳汰床層理論分層規律，在傳統跳汰機基礎上進行研制和改進的一種節能重選設備，其跳汰脈動曲線呈鋸齒波形使上升水流快于下降水流；上升時間短、下降時間長，克服了正弦波，脈動曲線跳汰機產生的上升、下降水流和作用時間相同的缺陷，增強了床層的松散度，緩解了吸入作用，使礦物中的重礦粒得到充分沉降，大大提高了設備的選別比能力和回收率。其與正弦波跳汰機進行工業試驗對比；鋸齒波跳汰機作業回收率比正弦波跳汰機分別提高Sn:3.01%,W:5.5%,Pb:1.63%,Zn:2.04%;耗水量減少30%-40%，占地面積減少1/3，且沖程可調整，由于采用電磁調速電機進行拖動使沖次可無級調節。其參數達到國內先進水平，是目前較理想的節能重選設備之一。

Sawtooth wave jigs are a kind of energy-saving gravity equipment  development and improved on the basis of traditional jigs according to the  theoretic layering law of jig beds. Their jigging pulsation curves take the  shape of sawtooth waveform which gets the ascending water to travel more  rapidly than the descending water. The ascending time is short while the  descending time is long. The problem that the ascending and descending water  flow and action time produced by sine wave and pulsation wave are the same is  solved. The looseness of the bed is strengthened and suction function is  alleviated so that the heavy ore grains in the minerals are able to precipitate  fully and the sorting ratio ability and recovery rate of equipment are largely  improved. Compared with sine wave jigs through industrial tests, the recovery  rate of sawtooth wave jigs are higher than that of sine wave jigs respectively  in Sn:3.01%, W:5.5%, Pb:1.63%, and Zn:2.04%. The water consumption is reduced  by 30%to 40%. The area of flooring area is reduced by one-third and the stroke  can be adjusted. Since electromagnetism governing-speed motors are adopted for  dragging to enable the jig frequency to be steplessly regulated and their parameters  reached advanced domestic level, such jigs are one of the ideal types of energy  saving gravity separation equipment.

1.箱體  2.杠桿  3.6.軸承7206  4.7.8調整壓蓋  5.齒輪軸  9.軸承313  10.軸承8112  11.曲軸  12.15.23.27.螺母  13.防塵套  14.沖桿  16. 凸輪  17.沖桿座  18.軸

19.關節軸承內圈  20. 關節軸承外圈  21.軸套  22.軸  24.齒輪  25.軸承2216 

26.調整角度  28.軸  29.軸承7207   30.軸承外套(滾輪)  31.后蓋板  32.調整螺絲

1. Box  2. Level  3.6 Bearing 7206  4.7.8  Adjustment gland  5.  Gear shaft  9. Bearing 313  10. Bearing 8112  11. Crank shaft  12.15.23.27  Nut  13. Dust cover  14. Drill drift  16. Cam  17. Drill drift seat  18. Shaft  19. Joint bearing inner ring  20. Joint bearing outer ring  21. Shaft sleeve  22. Shaft  24. Gear  25. Bearing 2216  26. Adjustment angle  28. Shaft  29. Bearing 7207  30. Bearing cover (roller)  31. Back cover plate  32. Adjusting screw

四、設備安裝

IV. Equipment Installation

 跳汰機必須將機架底面安裝在水平基礎上，保證槽體內篩網的傾斜度在設計范圍內。

For the jigs, the bottom  surface of the frame must be installed horizontally to ensure the gradient of  the screen in the tank is within the design scope.

注:處理量和補給水量隨給礦石粒度、礦石性質及作業條件不同而異。

Note:  With the amount of recharge capacity and size to the ore, ore properties and  operating conditions vary.