JT型鋸齒波(bo)跳汰機是一種新型的跳汰機是現代重選(xuan)設備之一，目(mu)前已形成系列推廣(guang)使用。這種跳汰機采用電磁無級調速，鼓動(dong)均勻，礦(kuang)流平穩(wen)，對寬別(bie)入選(xuan)物料適應性強，對中細粒選(xuan)別(bie)效果好，且省水(shui)，由于(yu)其處理能(neng)力大，選(xuan)別(bie)粒度(du)范圍廣(guang)，操作維護簡單，主要于(yu)選(xuan)別(bie)砂金、鎢礦(kuang)、錫礦(kuang)、赤鐵(tie)礦(kuang)和海濱砂礦(kuang)。
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(duo)為圓周(zhou)偏心驅動(dong)，其(qi)跳汰脈動(dong)曲線多(duo)為正弦波形，由隔膜運(yun)動(dong)產生的上(shang)升、下降(jiang)水(shui)流速度和作用時間基本相同，因此，不利于跳汰床(chuang)層(ceng)松散及礦粒(li)按比重分層(ceng)，從(cong)而(er)影響了設備的選別比和回收(shou)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(chi)波跳(tiao)(tiao)(tiao)汰(tai)(tai)機(ji)(ji)是(shi)根(gen)據跳(tiao)(tiao)(tiao)汰(tai)(tai)床層(ceng)理(li)論分(fen)(fen)層(ceng)規律，在傳統(tong)跳(tiao)(tiao)(tiao)汰(tai)(tai)機(ji)(ji)基礎上(shang)進(jin)行(xing)研制和(he)(he)改進(jin)的(de)(de)(de)一種節(jie)(jie)能重(zhong)選設(she)(she)備(bei)，其跳(tiao)(tiao)(tiao)汰(tai)(tai)脈動曲(qu)線呈鋸齒(chi)波形使(shi)上(shang)升水(shui)流快于(yu)下(xia)降水(shui)流；上(shang)升時間(jian)短、下(xia)降時間(jian)長，克服了(le)正弦(xian)波，脈動曲(qu)線跳(tiao)(tiao)(tiao)汰(tai)(tai)機(ji)(ji)產生(sheng)的(de)(de)(de)上(shang)升、下(xia)降水(shui)流和(he)(he)作用時間(jian)相同的(de)(de)(de)缺(que)陷，增(zeng)強了(le)床層(ceng)的(de)(de)(de)松散度(du)，緩解了(le)吸(xi)入作用，使(shi)礦(kuang)物中的(de)(de)(de)重(zhong)礦(kuang)粒得到充分(fen)(fen)沉降，大(da)大(da)提(ti)高(gao)了(le)設(she)(she)備(bei)的(de)(de)(de)選別比能力和(he)(he)回收率。其與正弦(xian)波跳(tiao)(tiao)(tiao)汰(tai)(tai)機(ji)(ji)進(jin)行(xing)工業試(shi)驗(yan)對比；鋸齒(chi)波跳(tiao)(tiao)(tiao)汰(tai)(tai)機(ji)(ji)作業回收率比正弦(xian)波跳(tiao)(tiao)(tiao)汰(tai)(tai)機(ji)(ji)分(fen)(fen)別提(ti)高(gao)Sn:3.01%,W:5.5%,Pb:1.63%,Zn:2.04%;耗水(shui)量減(jian)少30%-40%，占地面積減(jian)少1/3，且沖程可(ke)調(diao)整，由于(yu)采用電(dian)磁調(diao)速電(dian)機(ji)(ji)進(jin)行(xing)拖動使(shi)沖次可(ke)無級調(diao)節(jie)(jie)。其參數達(da)到國內先(xian)進(jin)水(shui)平，是(shi)目前較理(li)想的(de)(de)(de)節(jie)(jie)能重(zhong)選設(she)(she)備(bei)之(zhi)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.
圖3：凸輪箱結構圖 Figure 3: Structure of Cam Box
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
跳汰(tai)機必須(xu)將機架底面安(an)裝在水平基(ji)礎上，保(bao)證(zheng)槽體內篩網的傾斜度(du)在設計范(fan)圍(wei)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.
| 型號規格 Model | 跳汰面積Area jig | 沖程 Stroke | 沖次 Stroke | 給礦 粒度Feed size | 補水量 Hutch water | 水壓 Pressute water | 處理量 Capacity | 功率 Power | 外形尺寸 Overrall dimensions | 重量 Weight |
| m2 | mm | r/min | mm | t/h | kg/cm2 | t/h | kw | mm | t | |
| JT0.57-1 | 0.57 | 8.5-12
(M12凸輪) 10-17 (M17凸輪) | 60-160 | ＜6 | 1-2 | ≥0.3 | 1-2.5 | 1.5 | 1560×820 ×1550 | 0.612 |
| JT1-1 | 1.04 | ＜10 | 2-3 | 4-10 | 2.2 | 1322×1190 ×1915 | 0.9 | |||
| JT2-2 | 2.28 | 8.5-12
(M12凸輪) 10-17 (M17凸輪) | 60-160 | ＜10 | 2-4 | ≥0.3 | 8-15 | 3 | 3225×1550 ×2150 | 1.637 |
| JT3-1 | 3.3 | 10-47 可調 | 80-110 | ＜20 | 3-6 | ≥0.1 | 10-15 | 5.5 | 2662×2000 ×3030 | 3.26 |
| JT4-2兩室 兩個凸 輪箱傳動 | 4 | 7-30 五種凸輪 | 50-125 | ＜10 | 4-8 | ≥0.1 | 8-16 | 7.5 | 4240×1990 ×5750 | 4.6 |
| JT4 -2A兩室 兩個凸輪箱傳動 | 4 | 7-30 五種凸輪 | 50-125 | ＜10 | 4-8 | ≥0.1 | 8-16 | 4 兩臺 | 4240×1990 ×2750 | 4.6 |
| JT5-2 | 4.86 | 15-25 | 80-120 | ＜10 | 4-10 | ≥0.1 | 10-20 | 7.5 | 3940×2006 ×2580 | 4.8 |
注:處理量和補給水量隨給礦石粒度(du)、礦石性(xing)質及作業條(tiao)件(jian)不同而異(yi)。
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