Description

Spiral classifier has four types: hi們市gh weir type singl術房e spiral, high w報中eir type double spiral, submerged s西樹ingle spiral, submerged dou雜刀ble spiral. The gradin煙城g machine is widely us科舊ed in the concentrator for sh志高unting min看嗎e, with the ball mi那就ll forms a closed loop pro錯業cess, to grade ore and fine 些農mud the gravity mi是請ll, or classify the 冷美pulp in metal processing照快. It can also be used in s費影ludge removal, dehydration and ot商影her operations. The classifier在黃 has the advantages of simple str有內ucture, reliable work, conven影花ient operation.

The structure of the classifier: the腦如 classifier is mai司笑nly composed of a transmission device,道頻 a spiral body, a t分秒rough body, a lif中友ting device, a lower supp報些ort (a bearing bush) and費去 a discharge valve.

Suitable materials

Working Principle

The working principle of spiral紙小 classifier is tha校公t, different size solid particles 紅站have different weigh雨見t, and settling 制農rate is different in the liqu道分id. Fine ore&森時nbsp;particles floating in the 來年water to overflow. The coarse ore 草道particles sink to the b師子ottom, the spiral p下理ushes it to the upper and dis去通charge it. This is a ki時志nd of mechanical classific線個ation device. 

The base of the mac關木hine adopts channel steel, the body is司林 welded with steel pla到身te; the head of身行 the screw shaf票河t and the shaft he舞得ad, adopt the pig iron sle市知eve; all those 的雨make the device has a high 看新wear resistance. Lif美光ting device is divided into two 謝冷kinds of electric and m票會anual.

Advantages

The spiral classifier is the perfe章議ct combination of self shunt inert相笑ial classification techn日對ology and centrifugal classifi現服cation technology. The core t光區echnology has reached音得 the advanced level in th頻火e world, which is much b雜師etter than of turbo classifier水校. 

1.Low energy consumption: the s愛志ame processing capacity, energy現算 consumption can   re鐵從duce to 50% than othe家大r horizontal, ver現書tical classifier.

2.High efficiency: the不用 same capacity of process煙雨ing, classification ef分遠ficiency than other horizonta地人l, vertical classifier to improve 50%.

3.High precision: classification o學的f high fineness, completely put an end 分好to the excessive particles and resi離理due.

4.Low speed: grading 雨一the same size materials低線, rotation speed of spiral 術呢classifier is h南著alf to other horizontal, v線購ertical classifier. When&麗技nbsp;powder body&nbs輛就p;of Mohs hardness o問討f less than 5, the 在高wheel has no abrasion; When produce M鐵能ohs hardness more than 7 ma子和terials, grading wheel’s動睡 service life i光票s long 5~8 times than other h老我orizontal, vertical class少木ifier.

5.High output: high capacit件習y classifier’s productio新煙n is up to 50t/h; the s自場tructure is various: it can equippe都對d with special clas高去sifier device according to di知作fferent special requirements能司.

6. It can install w拍人ith ball mill, Raymond mill, impac舞靜t mill, air flow mill, and other grindi上子ng equipment composed of closed circ高女uit or open circuit system.

7. Negative p計錯ressure production, no視間 dust pollution, good environment請子, high degree of automatio謝老n, stability, easy to operate.

Maintenance

Installation: It can be installed only 笑山after checking the machine with no d中商amage, no screw loose她購ning. Themachine should be firmly insta少村lled on well poured concrete. Th紙麗e base should have a good supportin北志g function, reduce the shear for物聽ce to the screw.

The machine can be紅行 operated only after the structure了都 and working principle 北西are clear.

1.Pulp feeding after the spir你兵al rotated, increas開自e the volume of ore gradually.

2.If the spiral 說兒get stuck, overload or other bugs whe廠但n working, and must stop 兵計immediately. Pulp should be out of t鄉木he pulp surface ne低熱ver let spiral in the slurry, open th員這e mine valve immediately, to av計務oid stock.

3. When start it ag不服ain, the screw must be lowed to a信水 certain position. i雜生f the machine needs不土 to stop, firstly stop feeding 錯女materials, until all materials without 新放others in it, then can stop the m多但achine.

4. All lubric能雜ation points are lubric信裡ated with sodium base grease or calc一廠ium base grease; each t妹問eam should check whether the internal 電用lubrication oil in t紅友he oil needle line, renew it ever來那y 6 months.&nbs嗎電p;

5.Check the base or middle 器雨bearing frame, bearing, seal ring ar動車e worn or not, so as to r大熱eplace in time; bearing lubrication水姐 must be add high pressure oil to th要件e bearing with manua務物l dry oil pump every 4 hours, 好如to maintain the bearing sealing perform樂地ance.

6.As a key equipm就又ent of mineral process男用ing, spiral classifier’s classificatio線友n affects the quality of the fi業公nal products. Many fa又上ctors affect the e是明quipment classif個麗ication effects. There are external 草長factors and internal fac文哥tors, the following three aspects int銀放roduced the artificial fact都線ors.

7.ht not hold well every time, fo算她r example, in order to maintai窗化n a low concentration, s頻和ome workers will calculate妹錢 the solid mass and Judge the productio議我n capacity of classifier, it i這腦s easy to cause the pulp is 又山excessive, it w間制ill make the coarse particles which d物睡o not meet the 員跳requirements overfl體麗ow.

8. Different chemi在飛cal, physical and chemical proper冷水ties are different. Its 音一adding correct or not affec嗎兵t the classification 匠姐results. For example, some 國資drugs plays the role o用們f cohesion, some play a role舊玩 of dispersal and if workers are火上 careless, it may affect是朋 the classification ef物店fect.

9.When the pulp concentration is r行費eaching a certain leve但下l, if workers adds more amount o外雜f ore into classifi拿城er, the flow speed of slurry will chan件身ge, that will lead to particle美業 coarsening, so the workers feedin女多g also affect the spiral classifier頻路’s performance.

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