CGT-8振動式砂金精選機是國內(nèi)有關(guān)砂金精選機的基礎(chǔ)上設(shè)計的。經(jīng)多年采生產(chǎn)實踐,該精選機具有機械參數(shù)良好、操作簡單、砂金回收率高等優(yōu)點。
每處理 1m3精砂,只需30分鐘左右,且回收率可達(dá)98%,如此進(jìn)行二次處理,回收率可達(dá)99.8%,粒徑在 0.02毫米的微粒金可全部回收。
該機還可以上人工小溜,每小時可處理 3m3,處理精砂可得到滿意的經(jīng)濟效益。
砂金、砂礫和水三種物質(zhì)的比重差異明顯,砂金比重為16左右,砂礫為2.6,水為1。該精選機是根據(jù)它們比重不同,采用震動浮原理,在震動作用下,砂礫在槽內(nèi)進(jìn)行往復(fù)跳動,相互碰撞,加水在槽內(nèi)產(chǎn)生渦流作用,使砂礫產(chǎn)生半懸浮狀態(tài),結(jié)果砂礫向槽下運動,逐漸流出槽外,而砂金富集在槽內(nèi),這樣就把砂金和砂礫截然分開。
以輕型鋼軌為滑輪基礎(chǔ)平面,配有4個支承輪滑動,支承輪托支溜槽,槽內(nèi)底面鋪有塑料毛氈,并有聯(lián)鎖溜槽壓緊,溜槽頭部安有擺線針輪減速機帶動凸輪,推動倒向桿,由壓縮彈簧回,形成震動。
槽長 Length of groove | mm | 2500 | |
上寬 Upper width | mm | 350 | |
下寬 Lower width | mm | 480 | 呈開擴式 opening typ |
槽高 Groove height | mm | 150 | |
震動頻率 Vibration frequency | 1/min | 163 | |
沖程 Troke | mm | 35-40 | 可調(diào) adjustable |
功率 Power | kw | 1.5 | |
溜槽坡度 Slope of chute | (°) | 10.5-12 | |
重量 Weight | kg | 380 | |
配套設(shè)備 Auxiliary equipment | |||
---|---|---|---|
潛水泵 Submersible pump | kw | 0.7 | |
供水量 Water supply quantity | m3/h | 15 | |
吸水管(若干)Suction pipe(some) | |||
金氈 Plastic felt | ㎡ | 0.8 |
1、根據(jù)現(xiàn)場實際情況,確定安裝位置,一般在選礦溜槽附近,或設(shè)在清水位置。
2、將精選機安裝位置墊平壓實,然后將精選機穩(wěn)好,縱向坡度調(diào)到10.5°—12°,橫向要求水平。
3、將精選機底部用砂礫壓好,防止精選機跳動。
4、調(diào)整好噴水管,應(yīng)直接噴射上料槽內(nèi),開動機器工作。
5、不斷把精砂上到精選機上料槽內(nèi),由于水的沖擊,精砂自動流入精選機槽內(nèi),大約30分鐘即可上完。
6、待料上完后,用水沖擊和震動1—2分鐘,再清理。
7、清溜,砂金基本在上料槽內(nèi)和精選機前部、中部,尾部基本無金。
8、清溜時,為減少淘洗量,可用網(wǎng)眼8× 8毫米的鐵絲編織的篩子過一下,除掉較大礫石,再進(jìn)行入工淘洗。在過篩時,要特別注意檢查有無塊金存在。
9、當(dāng)細(xì)粒金較多時,可進(jìn)行二次精選,以便保證回收率。
10、溜格通水孔若被礫石堵塞,要及時處理掉,以保暢通。
11、精選機不使用時,不得放任何物品,以保障使用期限。
12、請注意:水量大時角度可小點;水量小時角度可大點,使其毛氈保持不露為宜。
CGT-8 Vibrating Placer Gold Separator is a CGLC60A Model and CGLC 40A Model combined placer gold processing chute or can be operated along with other equipment. It is designed based upon the relevant placer gold separators in China, with years of production practices showing good mechanical performance, simple operation, high recovery of placer gold and other advantages.
Placer gold is subject to primary separation by CGLC60A Model and CGLC 40A Model combined placer gold separation chute or other chutes with 0.7m3 of concentrate obtained. It requires more treatment prior to obtaining higher graded concentrate. This process used to be handled manually through chute, followed by hand washing, which took 3-4 hours with high labor intensity and low recovery rate of placer gold, especially, in the case of more fine grains of gold and platelet gold, much lower in the recovery. However, CGT-8 Vibrating Placer Gold Separator has solved the above-mentioned problem with handling of 1m3 of concentrate requiring only about 30 minutes and the recovery rate of 98% reached. In the event that secondary treatment takes place, the recovery rate is expected to reach 99.8% and the particles at a size of 0.02 mm can be fully recovered.
This machine also can be used for handling manually through chute at a capacity of 3m3/h with treatment of concentrate producing the desirable economic benefit.
The three substances of placer gold, gravel and water have an evident difference in specific gravity with the specific gravity for placer gold being around 16, gravel 2.6 and water 1. The separator introduces the principle of floating by vibration based on their different specific gravities. The gravels, under the action of vibration, will jump back and forth and collide each other in the chute. With the addition of water in the chute, eddy current will be produced, allowing the gravels to be kept in the state of the semi-suspension. If the gravels move down the chute and gradually flow out of the chute, and the place gold concentrates in the chute, the place gold will be separated completely from the gravels.
With light steel rail as a pulley foundation plan and provision of 4 balancing wheels to slide and support the chute; the chute bottom covered with plastic felts and the interlocked chute for compression; the front of the chute fitted with cycloidal reducer to drive cam and to push backward bar; return of compressed spring developing vibration.
1.Specification of chute: length of groove: 2500 mm
a) Upper width: 350 mm,lower width: 480 mm,in opening type,groove height: 150 mm.
b) Vibration frequency:163 times/min.
c) Stroke::35~ 40 mm,adjustable.
d) Power: 1.5 kw.
e) Slope of chute: 10.5°~12°.
f) Weight: 380 kg.
g) Auxiliary equipment:
(1)、2 submersible pump 0.7 kw.
(2)、water supply quantity: 15m3/h.
(3)、2 suction pipe(some).
(4)、plastic felt 0.8 m2.
1. The installation location is determined in accordance with the actual conditions on site , generally to be located near beneficiation chute or in the place of clean water.
2、The location of separator installation will be leveled up and compacted before the separator being steadied with longitudinal grade adjusted to be 10.50~120 and lateral to be level.
3、The bottom of separator will be pressed properly with gravel to prevent it from jumping.
4、Water spray pipe is adjusted properly to directly spray into feeding tank prior to starting up the machine.
5、Concentrates will be fed into feeding tank of the separator with small- size shovel continuously. Due to the impact of water, the concentrates will flow automatically into the tank of the separator, which will take 30 minutes or so to complete.
6、After completion of feeding, washing with water and vibrating 1~2 min before cleaning up.
7、In cleaning chute, placer gold primarily is located in feeding tank and there is no placer gold in the front, middle and rear of the separator.
8、In cleaning chute, to reduce washing operation, placer gold may be screened with iron wire knitted 8 mm× 8 mm to remove big gravel before being washed manually. In screening operation, attention should be paid to checking presence of lump of gold.
9、If there is more granular gold, secondary cleaning may be conducted to ensure the recovery rate.
10、If lattices of chute are blocked by gravel, timely treatment should be made to ensure its smoothness.
11、When the separator is not used, no goods are allowed to be placed in it and no person is allowed to sit in groove to ensure its lifetime.
12、Note: when water supply quantity is large, slope can be adjusted to be small and when water supply quantity is small, slope can be adjusted to be big to keep the felt unexposed.