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CN1024166C - Flotation machine suitable for coarse and heavy mineral particle flotation - Google Patents

Flotation machine suitable for coarse and heavy mineral particle flotation Download PDF

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Publication number
CN1024166C
CN1024166C CN 91106620 CN91106620A CN1024166C CN 1024166 C CN1024166 C CN 1024166C CN 91106620 CN91106620 CN 91106620 CN 91106620 A CN91106620 A CN 91106620A CN 1024166 C CN1024166 C CN 1024166C
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CN
China
Prior art keywords
flotation
impeller
slurry
coarse
machine
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Expired - Fee Related
Application number
CN 91106620
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Chinese (zh)
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CN1063428A (en
Inventor
吴亦瑞
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Central South University
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Central South University
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Filing date
Publication date
Application filed by Central South University filed Critical Central South University
Priority to CN 91106620 priority Critical patent/CN1024166C/en
Publication of CN1063428A publication Critical patent/CN1063428A/en
Application granted granted Critical
Publication of CN1024166C publication Critical patent/CN1024166C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A flotation machine suitable for the flotation of coarse and heavy mineral particles belongs to special equipment in the field of mineral separation. The equipment is characterized in that an impeller with a forward frustum-shaped chassis provided with spiral blades is designed. When it rotates, it can generate strong stirring action to form the obliquely downward slurry-gas mixed flow to be jetted to the periphery of the bottom of the tank. Therefore, the phenomenon of 'sinking groove' of minerals with large specific gravity and coarse granularity in the flotation tank can be overcome. The machine is designed with a single-layer impeller, middlings can return by self-suction, and the machine is an air agitation flotation machine with slurry suction capacity.

Description

Flotation machine suitable for flotating rough and heavy granulated ores
The invention belongs to the special equipment of ore dressing field.
The flotation device of the common usefulness of mineral floating also makes the inhaled air disperse become very little bubble except stirring ore pulp.As the wheeled flotation device (see figure 4) of A type radiation fins.The impeller mechanism that its structure is made up of impeller, cover plate, main shaft and bearing body is installed on the cell body girder, is driven by belt pulley by motor.6 blade (see figure 5)s of equivalent arrangements on the impeller disk.Equalization is equipped with the guide vane (see figure 6) around the cover plate.Cover plate is equipped with in the top of impeller, and cover plate is installed in spindle unit axle sleeve below.Drive shaft, the impeller rotation, the ore pulp that is stirred keeps solid to suspend in cell body and the inhaled air disperse is become bubble; Cover plate stops rotatablely moving of ore pulp and promotes the disperse of bubble.The turbulent motion of the geometry decision ore pulp of impeller-cover plate, and the bubble of turbulent motion decision solid particle suspended state, bubble disperse and ore particle such as adheres at the flotation microprocess, and the ore pulp jet that leaves the cover plate blade is reflected up to cell wall and by cell wall and splits into two strands of jets that move along cell wall; One moves upward, the surface and the surrounding fluid that expand to fluid are mixed into the vortex, and another strand is distributed in the cell body bottom and forms vortex down downwards, because the flow of slurry that impeller penetrates has certain distance apart from bottom land, bottom land flow of slurry impulsive force is faint, so this kind flotation device exists the interior ore pulp lamination of groove serious, the coarse grain suspension effect is poor, ore pulp turns round and round, the surface magic flower, inspiratory capacity is little, weak points such as energy consumption height.
At the weak point of above-mentioned existing equipment, the object of the present invention is to provide a kind of bottom land mixing power strong, the turbulence level height helps the suspension of big and heavy mineral material, no deep gouge phenomenon, and the flotation device of energy saving.
For achieving the above object, the present invention has designed the impeller that 10-12 helical blade is housed on a kind of conical chassis.
Be further described below in conjunction with accompanying drawing.
Fig. 1. the flotator structure schematic diagram.
Fig. 2,3 helical blade impeller schematic diagrames.
Fig. 1 has described complete machine structure of the present invention.Diversion platform 3 stabiliers 6 all are foundry goods.Place on the bottom land base plate by deadweight, impeller 4 is connected with hollow shaft 9, the low-pressure air of being sent into by blower fan enters below, impeller 4 chassis through hollow shaft 9, take over a business 5 cover cap impellers, 4 tops and be connected with slurry intake chamber 7, slurry intake chamber 7 tops are connected with bearing block 11, be fixed on together on the cell body 2, drive by belt pulley by motor.
Fig. 2, Fig. 3 have described the architectural feature of impeller.Positive taper type impeller has an axle center hole 12 that is connected with hollow shaft 9, and 10~12 helical blades are equipped with on positive taper type chassis, have the architectural feature of diffusion type (umbrella).When it rotated, the linear velocity of each point was more down big more on the blade, so just can cause very strong stirring action, and the slurry gas mixed flow under formation is tilted to is around the directive bottom land.So can overcome than mineral great, coarse size and " deep gouge " phenomenon in groove, occur.
Flotation device working condition of the present invention is described: during main axis rotation, because of being subjected to the helical blade stirring action, form negative pressuren zone on impeller 4 tops, utilize impeller 4 tops to take over a business 5 buffer action, the top negative pressuren zone is divided into two parts: promptly take over a business the central negative nip, this minus zone relies on and the slurry intake chamber 7 of taking over a business 5 tight connection, sucks chats or froth pulp by pulp-inlet pipe road 8.And taking over a business below 5, impeller 4 blade side limits, ore pulp around sucking is realized ore pulp circulation in the groove.The flow of slurry of leaving impeller along inclined direction enters bottom land through diversion platform 3.Diversion platform 3 can reduce hydraulic loss, plays guide functions, relies on a large amount of air that interaction energy fully disperses to import via hollow shaft 9 impeller 4 bottoms that entrainment of flow of slurry simultaneously.The slurry gas mixture through the current stabilization shunting action of arc stabilier 6 and splitter, can prevent that ore pulp from turning round and round and improve the bubble decentralization when bottom land spreads.Arrive at the flow of slurry of splitter and cell wall and turn back upwards, evenly rise, and progressively mix with surrounding fluid.
The present invention " is suitable for the flotation device of big and heavy mineral grain flotation " owing to adopted the impeller of dress flight on the conical chassis, and the impeller near region does not have the cover plate leaf baffle, thereby compares with the M-6A flotation device in industrial contrast test, has embodied following good effect:
1. be conducive to the flowsheet of slurry agitation circulation, overcome the phenomenon of big and heavy material deep gouge.
2. reduced the useless loss of ore pulp turbulent flow energy, solid particle to floatation process suspends, bubble disperses, ore particle adheres to bubble has created advantage, and bubble enters bottom land with flow of slurry, improved the effective charging volume of flotation device, these have illustrated that all flotation device of the present invention has reached efficient, energy-conservation purpose.
3. the floating region turbulence level is lower on this machine, and liquid level is steady, can reduce the chance that comes off that has sticked to coarse grain mineral on the bubble, helps the recovery of big and heavy material, and the coarse grain rate of recovery obviously improves.
4. in the commerical test that sulfide flotation and M-6A flotation device compare, give ore deposit character and other condition identical, dosing is saved under 30% the situation, and sulphur, lead, zinc recovery improve 6.12%, 8.75%, 4.57%.
5. this machine is simple in structure, and running is steady, and easy to operate, aeration quantity can be regulated, and unit power consumption saves 15%, and wear-out part can prolong about one times service life.
6. individual layer impeller of this machine design is a kind ofly to have the inflation agitated flotation cell of inhaling the slurry ability, but the chats self-priming return, overcome inflation agitating type flotation device and lost the defective of inhaling the slurry effect.Use the present invention need not be placed with the flotation operation district of drop and be equipped with the pump that is exclusively used in the foam Returning process, and process structure is easy to adjust.

Claims (1)

1, a kind of flotation device that is suitable for big and heavy mineral grain flotation, this machine structure is: impeller 4 is connected with hollow shaft 9, takes over a business 5 cover cap impellers, 4 tops and is connected with slurry intake chamber 7, and slurry intake chamber 7 tops are connected with bearing block 11, be fixed on together on the cell body 2, drive by belt pulley by motor; Diversion platform 3 and stabilier 6 place on the bottom land base plate by deadweight, the invention is characterized in that described impeller 4 is positive taper types, and helical blade is housed on it, have an axle center hole 12 that is connected with hollow shaft 9.
CN 91106620 1991-01-25 1991-01-25 Flotation machine suitable for coarse and heavy mineral particle flotation Expired - Fee Related CN1024166C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 91106620 CN1024166C (en) 1991-01-25 1991-01-25 Flotation machine suitable for coarse and heavy mineral particle flotation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 91106620 CN1024166C (en) 1991-01-25 1991-01-25 Flotation machine suitable for coarse and heavy mineral particle flotation

Publications (2)

Publication Number Publication Date
CN1063428A CN1063428A (en) 1992-08-12
CN1024166C true CN1024166C (en) 1994-04-13

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ID=4908012

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 91106620 Expired - Fee Related CN1024166C (en) 1991-01-25 1991-01-25 Flotation machine suitable for coarse and heavy mineral particle flotation

Country Status (1)

Country Link
CN (1) CN1024166C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101804386A (en) * 2010-03-22 2010-08-18 株洲市兴民科技有限公司 Method and device for flotation by adopting spiral rotor and application

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179313B (en) * 2010-12-28 2013-06-19 株洲市兴民科技有限公司 Single-trough floatation method adopting helical rotor, device and use
CN105149110B (en) * 2015-09-21 2017-10-03 广西高峰矿业有限责任公司 A kind of bolt cover plate integral type flotation device
CN108043593A (en) * 2017-12-25 2018-05-18 中矿金业股份有限公司 A kind of anti-settling slot device of U-type groove flotation device
CN109513520A (en) * 2018-12-04 2019-03-26 中建水务环保有限公司 Construction refuse resource processing unit and method
CN112973973B (en) * 2021-03-18 2022-06-14 华能煤炭技术研究有限公司 Centrifugal flotation machine and centrifugal flotation method
CN114433363B (en) * 2021-12-22 2024-04-19 贵州大学 Phosphogypsum organic carbon enrichment device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101804386A (en) * 2010-03-22 2010-08-18 株洲市兴民科技有限公司 Method and device for flotation by adopting spiral rotor and application
CN101804386B (en) * 2010-03-22 2013-06-05 株洲市兴民科技有限公司 Method and device for flotation by adopting spiral rotor and application

Also Published As

Publication number Publication date
CN1063428A (en) 1992-08-12

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