JT型鋸齒波跳汰機(jī)是一種新型的跳汰機(jī)是現(xiàn)代重選設(shè)備之一，目前已形成系列推廣使用。這種跳汰機(jī)采用電磁無級(jí)調(diào)速，鼓動(dòng)均勻，礦流平穩(wěn)，對(duì)寬別入選物料適應(yīng)性強(qiáng)，對(duì)中細(xì)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(hù)簡(jiǎn)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(tǒng)的跳汰機(jī)多為圓周偏心驅(qū)動(dòng)，其跳汰脈動(dòng)曲線多為正弦波形，由隔膜運(yùn)動(dòng)產(chǎn)生的上升、下降水流速度和作用時(shí)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(shè)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(jī)是根據(jù)跳汰床層理論分層規(guī)律，在傳統(tǒng)跳汰機(jī)基礎(chǔ)上進(jìn)行研制和改進(jìn)的一種節(jié)能重選設(shè)備，其跳汰脈動(dòng)曲線呈鋸齒波形使上升水流快于下降水流；上升時(shí)間短、下降時(shí)間長(zhǎng)，克服了正弦波，脈動(dòng)曲線跳汰機(jī)產(chǎn)生的上升、下降水流和作用時(shí)間相同的缺陷，增強(qiáng)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(shè)備的選別比能力和回收率。其與正弦波跳汰機(jī)進(jìn)行工業(yè)試驗(yàn)對(duì)比；鋸齒波跳汰機(jī)作業(yè)回收率比正弦波跳汰機(jī)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(diào)整，由于采用電磁調(diào)速電機(jī)進(jìn)行拖動(dòng)使沖次可無級(jí)調(diào)節(jié)。其參數(shù)達(dá)到國內(nèi)先進(jìn)水平，是目前較理想的節(jié)能重選設(shè)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.
圖3：凸輪箱結(jié)構(gòu)圖 Figure 3: Structure of Cam Box
1.箱體 2.杠桿 3.6.軸承7206 4.7.8調(diào)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(guān)節(jié)軸承內(nèi)圈 20. 關(guān)節(jié)軸承外圈 21.軸套 22.軸 24.齒輪 25.軸承2216
26.調(diào)整角度 28.軸 29.軸承7207 30.軸承外套(滾輪) 31.后蓋板 32.調(diào)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
跳汰機(jī)必須將機(jī)架底面安裝在水平基礎(chǔ)上，保證槽體內(nèi)篩網(wǎng)的傾斜度在設(shè)計(jì)范圍內(nèi)。
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(hào)規(guī)格 Model | 跳汰面積Area jig | 沖程 Stroke | 沖次 Stroke | 給礦 粒度Feed size | 補(bǔ)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(diào) | 80-110 | ＜20 | 3-6 | ≥0.1 | 10-15 | 5.5 | 2662×2000 ×3030 | 3.26 |
| JT4-2兩室 兩個(gè)凸 輪箱傳動(dòng) | 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(gè)凸輪箱傳動(dòng) | 4 | 7-30 五種凸輪 | 50-125 | ＜10 | 4-8 | ≥0.1 | 8-16 | 4 兩臺(tái) | 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(bǔ)給水量隨給礦石粒度、礦石性質(zhì)及作業(yè)條件不同而異。
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