CN207254427U - It is used to prepare two sections of vertical stirring mills series connection open-circuit grinding system of zinc oxygen leaching raw material - Google Patents
It is used to prepare two sections of vertical stirring mills series connection open-circuit grinding system of zinc oxygen leaching raw material Download PDFInfo
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- CN207254427U CN207254427U CN201720943089.4U CN201720943089U CN207254427U CN 207254427 U CN207254427 U CN 207254427U CN 201720943089 U CN201720943089 U CN 201720943089U CN 207254427 U CN207254427 U CN 207254427U
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Abstract
The utility model discloses a kind of two sections of vertical stirring mills series connection open-circuit grinding system for being used to prepare zinc oxygen leaching raw material, including slurrying device, one section of vertical stirring mill and two sections of vertical stirring mills, the delivery outlet of slurrying device is connected with the feed inlet of one section of vertical stirring mill, the discharge port of one section of vertical stirring mill is connected with the feed inlet of two sections of vertical stirring mills, first pipeline is pumped equipped with the first pulp conveying, and the second pipeline is pumped equipped with the second pulp conveying.The utility model has the advantages that small investment, of low cost, flow is short, operating cost is low, stable and reliable in work and fine grinding effect is good.
Description
Technical field
It the utility model is related to nonferrous metallurgy and grinding attachment field, and in particular to one kind is used to prepare the pressure leaching of zinc oxygen
Go out two sections of vertical stirring mills series connection open-circuit grinding system of raw material.
Background technology
Traditional zinc oxygen leaching method for preparing raw material is to use ball milling grinding process, as shown in figure 3, ball milling grinding process
The grinding system of middle use is made of traditional ball mill, grader and concentrator, is closed circuit grinding system, is passed through ball mill
Zinc concentrate granularity is reached D95=45 μm with grader ore grinding, it is necessary to concentrator by the pulp solids content of cyclone overflow by
The shortcomings that 30%~40% is concentrated into 65%~70%, the closed circuit grinding system be：Product granularity is unstable；Grinding efficiency is low, energy consumption
Greatly, long flow path；Take up a large area；Cost of investment is high；Difficult management；Thickener underflow is unstable and system operation cost is high.
There is the preparation that zinc oxygen leaching raw material is carried out using sand mill at present, but sand mill is expensive；Its rapid wear
Part（Such as abrasive disk and cylinder）Service life it is short；Abrasive media consumption is big, price；The installed power of motor is big；Fortune
Row is of high cost；Cylinder volume is smaller and grinding efficiency is poor, and product granularity only reaches D85=45 μm, influences subsequently to leach operation and refers to
Mark.
Utility model content
The technical problems to be solved in the utility model is to overcome the shortcomings of the prior art, there is provided a kind of small investment, into
This is cheap, flow is short, operating cost is low, stable and reliable in work and good fine grinding effect be used to prepare zinc oxygen leaching raw material two
Section vertical stirring mill series connection open-circuit grinding system.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of two sections of vertical stirring mills series connection open-circuit grinding system for being used to prepare zinc oxygen leaching raw material, including pulp
Device, one section of vertical stirring mill and two sections of vertical stirring mills, the delivery outlet of the slurrying device pass through the first pipeline and one
The feed inlet of section vertical stirring mill is connected, and the discharge port of one section of vertical stirring mill is vertical by the second pipeline and two sections
The feed inlet of agitator mill is connected, and first pipeline is pumped equipped with the first pulp conveying, and second pipeline is equipped with second
Pulp conveying pumps.
Above-mentioned two sections of vertical stirring mills series connection open-circuit grinding system, it is preferred that the slurrying device includes connecting successively
The first agitator and the second agitator connect, the outlet of second agitator pass through first pipeline and one section of vertical mixing
The feed inlet of grinding machine is connected.
Above-mentioned two sections of vertical stirring mills series connection open-circuit grinding system, it is preferred that second agitator is stood with one section
The medial launder for being used for storing and adjust mineral pulp level is equipped between formula agitator mill.
Above-mentioned two sections of vertical stirring mills series connection open-circuit grinding system, it is preferred that the first pulp conveying pump and the
Two pulp conveyings pump is any one in peristaltic pump, centrifugal pump, ceramic pump and Pulp pump.
Above-mentioned two sections of vertical stirring mills series connection open-circuit grinding system, it is preferred that first agitator is cylindricality
Vertical mixing bucket, second agitator are the Horizontal stirring bucket of cylindricality.
Above-mentioned two sections of vertical stirring mills series connection open-circuit grinding system, it is preferred that second agitator it is laterally wide
Transverse width of the degree more than the first agitator；The longitudinal direction height of second agitator is less than the longitudinal direction height of the first agitator.
Above-mentioned two sections of vertical stirring mills series connection open-circuit grinding system, it is preferred that be equiped with first agitator
Spiral agitator；Disc mixer is equiped with second agitator.
Above-mentioned two sections of vertical stirring mills series connection open-circuit grinding system, it is preferred that one section of vertical stirring mill and
The agitator type of two sections of vertical stirring mills is any one in spiral, bar type, disc type and combined type.
Compared with prior art, the utility model has the advantage of：The utility model is used to prepare zinc oxygen leaching original
Two sections of vertical stirring mills series connection open-circuit grinding system of material, first will zinc essence be ground when carrying out the preparation of zinc oxygen leaching raw material
Mineral material obtains having certain density ore pulp after carrying out pulp by slurrying device, is then pumped by the first pulp conveying and leads to ore pulp
Cross the first pipeline and be delivered to from slurrying device in one section of vertical stirring mill and roughly ground, obtained after corase grinding mog it is higher,
The material that pulp density remains unchanged, then it is by the second pulp conveying pump that the ore pulp after corase grinding is vertical from one section by the second pipeline
Agitator mill is delivered in two sections of vertical stirring mills and carries out fine grinding, mog higher is obtained after fine grinding, pulp density is kept
Constant material, that is, obtain stable zinc oxygen leaching raw material.This is used to prepare two sections of vertical mixings of zinc oxygen leaching raw material
Mill coupled in series open-circuit grinding system is compared with existing closed circuit grinding system, it is not necessary to classification and concentrator, have small investment,
Of low cost, the advantages of flow is short, operating cost is low, stable and reliable in work and fine grinding effect is good.
Brief description of the drawings
Fig. 1 is the flow chart that method prepared by zinc oxygen leaching raw material is carried out using the utility model grinding system.
Fig. 2 is the structure diagram of two sections of vertical stirring mills series connection open-circuit grinding systems of the utility model.
Fig. 3 is the structure diagram of traditional ball milling grinding system.
Marginal data：
1st, slurrying device；11st, the first agitator；12nd, the second agitator；2nd, one section of vertical stirring mill；3rd, two sections it is vertical
Agitator mill；4th, medial launder；5th, the first pulp conveying pumps；6th, the second pulp conveying pumps.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Fig. 2, the present embodiment is used to prepare two sections of vertical stirring mills series connection open circuit mill of zinc oxygen leaching raw material
Ore deposit system, including 1, one section of vertical stirring mill 2 of slurrying device and two sections of vertical stirring mills 3, the delivery outlet of slurrying device 1 lead to
The feed inlet that the first pipeline is crossed with one section of vertical stirring mill 2 is connected, and the discharge port of one section of vertical stirring mill 2 passes through the second pipe
Road is connected with the feed inlet of two sections of vertical stirring mills 3, and the first pipeline is equipped with the first pulp conveying pump 5, is set on the second pipeline
There is the second pulp conveying to pump 6.Preferably, it is equipped with on-off control valve door on the first pipeline and the second pipeline.
In the ore pulp obtained after mill zinc concentrate material carries out pulp in slurrying device 1, granularity is that -74 μm of mineral contain
Amount accounts for 40% ~ 80%, and pulp density is 65% ~ 75%.By the first pulp conveying pump 5 by ore pulp by the first pipeline from slurrying device 1
It is delivered in one section of vertical stirring mill 2 and is roughly ground, granularity is that -45 μm of material accounts for 60%~90% after corase grinding, pulp density
Stablize 65%~75%, then by the second pulp conveying pump 6 by the ore pulp after corase grinding by the second pipeline from one section of vertical mixing mill
Machine 2 is delivered in two sections of vertical stirring mills 3 and carries out fine grinding, and the material that granularity is -45 μm is obtained after fine grinding and accounts for 96%~98%, ore deposit
Concentration stabilization is starched 65%~75%, that is, obtains stable zinc oxygen leaching raw material.Two sections of vertical stirring mill series connection open circuit mills
Ore deposit system is compared with existing grinding system, it is not necessary to which classification and concentrator, have small investment, of low cost, flow is short, fortune
The advantages of row cost is low, stable and reliable in work and fine grinding effect is good.
In the present embodiment, slurrying device 1 includes sequentially connected first agitator, 11 and second agitator 12, the second stirring
The outlet of bucket 12 is connected by the first pipeline with the feed inlet of one section of vertical stirring mill 2.Zinc concentrate material to be ground is stirred by first
The 12 further pulp of the second agitator is sent into after mixing 11 pulp of bucket, to obtain the ore pulp of concentration stabilization, then by the first pulp conveying
Ore pulp is delivered in one section of vertical stirring mill 2 by pump 5 by the first pipeline from slurrying device 1 to be roughly ground.
Preferably, the first agitator 11 is the vertical mixing bucket of cylindricality, and the second agitator 12 is the Horizontal stirring bucket of cylindricality,
The transverse width of second agitator 12 is more than the transverse width of the first agitator 11；The longitudinal direction height of second agitator 12 is less than the
The longitudinal direction height of one agitator 11, ore pulp pass sequentially through the first agitator 11 of this kind of form and the second agitator 12 and can be lifted
Mixing effect.Still more preferably, it is equiped with spiral agitator in the first agitator 11；It is equiped with second agitator 12
Disc mixer, is so more advantageous to the refinement being uniformly mixed with particle of stirring slurries, mitigates the ore grinding burden of follow-up equipment
And pressure.
In the present embodiment, medial launder 4 is equipped between the second agitator 12 and one section of vertical stirring mill 2, medial launder 4 plays storage
The effect of mineral pulp level is deposited and adjusted, can guarantee that the stabilization of two sections of vertical stirring mill series connection open-circuit grinding system mineral pulp levels,
And then that stablizes is fed to one section of vertical stirring mill 2.
In the present embodiment, the first pulp conveying pump 5 with second pulp conveying pump 6 be peristaltic pump, centrifugal pump, ceramic pump and
Any one in Pulp pump.The first pulp conveying pump 5 and the second pulp conveying pump 6 of the present embodiment carry out ore deposit using peristaltic pump
Slurry conveying, peristaltic pump uniformly and stably can enter one section of vertical stirring mill 2 and two sections of vertical stirring mills 3 by transfer ore pulp,
It is further ensured that the stability of feed.
As shown in Figure 1, zinc oxygen leaching raw material is carried out using above-mentioned two sections of vertical stirring mills series connection open-circuit grinding system
The method of preparation, comprises the following steps：
1）, will treat that grind materials carry out pulp and obtain ore pulp, granularity is that -74 μm of solid particle accounts for 40% ~ 80% in ore pulp, ore deposit
It is 65% ~ 75% to starch concentration；
2）, ore pulp fed to one section of vertical stirring mill 2 carry out primary grinding, the mog of primary grinding for D60~
D90=45µm；
3）, the ore discharge of primary grinding fed into two sections of vertical stirring mills 3 carry out secondary grinding, the ore grinding of secondary grinding is thin
Spend for D96 ~ D98=45 μm, the ore discharge of secondary grinding is zinc oxygen leaching raw material.
The solid particle that granularity is -74 μm in the ore pulp obtained after mill zinc concentrate material carries out pulp accounts for 40% ~ 80%, ore deposit
It is 65% ~ 75% to starch concentration, and granularity is that -45 μm of material accounts for 60%~90% after primary grinding, pulp density stabilization 65%~
75%, then finally obtain after secondary grinding the material that granularity is -45 μm and account for 96%~98%, pulp density stabilization 65%~
75%, that is, obtain stable zinc oxygen leaching raw material.Obtained zinc oxygen leaching raw material can carry out one section of follow-up oxygen as needed
Pressure leaches and flash distillation is adjusted.The zinc oxygen leaching method for preparing raw material has short flow, small investment, operating cost is low, ore grinding is thin
Spend the advantages of high.
In the present embodiment, one section of vertical stirring mill 2 is using the medium of a diameter of 15mm ~ 30mm, one section of vertical mixing mill
The frequency of machine 2 is 30HZ ~ 50HZ；Two sections of vertical stirring mills 3 are using the medium of a diameter of 5mm ~ 15mm, two sections of vertical mixing mills
The frequency of machine 3 is 40HZ ~ 50HZ.One section of vertical stirring mill 2 and two sections of vertical stirring mills 3 use above-mentioned medium and frequency energy
Enough reach optimal grinding efficiency, reduce cost.The medium that one section of vertical stirring mill 2 and two sections of vertical stirring mills 3 use
It is any one in chromium steel ball, zirconium ball, Ceramic Balls, glass marble and natural sand.One section of vertical stirring mill 2 and two sections it is vertical
The agitator type of agitator mill 3 is any one in spiral, bar type, disc type and combined type.In the present embodiment, one section vertical
The agitator speed of formula agitator mill 2 and two sections of vertical stirring mills 3 is unequal, realizes varigrained high efficiency ore grinding.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment.To those of ordinary skill in the art, the gained under the premise of the utility model technical concept is not departed from
To modifications and variations also should be regarded as the scope of protection of the utility model.
Claims (8)
1. a kind of two sections of vertical stirring mills series connection open-circuit grinding system for being used to prepare zinc oxygen leaching raw material, its feature exist
In：Including slurrying device（1）, one section of vertical stirring mill（2）With two sections of vertical stirring mills（3）, the slurrying device（1）'s
Delivery outlet passes through the first pipeline and one section of vertical stirring mill（2）Feed inlet be connected, one section of vertical stirring mill（2）'s
Discharge port passes through the second pipeline and two sections of vertical stirring mills（3）Feed inlet be connected, first pipeline is equipped with the first ore deposit
Starch delivery pump（5）, second pipeline is equipped with the second pulp conveying pump（6）.
The open-circuit grinding system 2. two sections of vertical stirring mills according to claim 1 are connected, it is characterised in that：The pulp
Device（1）Including sequentially connected first agitator（11）With the second agitator（12）, second agitator（12）Outlet
Pass through first pipeline and one section of vertical stirring mill（2）Feed inlet be connected.
The open-circuit grinding system 3. two sections of vertical stirring mills according to claim 2 are connected, it is characterised in that：Described second
Agitator（12）With one section of vertical stirring mill（2）Between be equipped with and be used to storing and adjusting the medial launder of mineral pulp level（4）.
4. two sections of vertical stirring mills series connection open-circuit grinding system according to any one of claim 1 ~ 3, its feature exist
In：The first pulp conveying pump（5）Pumped with the second pulp conveying（6）It is in peristaltic pump, centrifugal pump, ceramic pump and Pulp pump
Any one.
5. two sections of vertical stirring mills series connection open-circuit grinding system according to any one of claim 2 ~ 3, its feature exist
In：First agitator（11）For the vertical mixing bucket of cylindricality, second agitator（12）For the Horizontal stirring bucket of cylindricality.
The open-circuit grinding system 6. two sections of vertical stirring mills according to claim 5 are connected, it is characterised in that：Described second
Agitator（12）Transverse width be more than the first agitator（11）Transverse width；Second agitator（12）Longitudinal direction height
Less than the first agitator（11）Longitudinal direction height.
The open-circuit grinding system 7. two sections of vertical stirring mills according to claim 5 are connected, it is characterised in that：Described first
Agitator（11）Inside it is equiped with spiral agitator；Second agitator（12）Inside it is equiped with disc mixer.
8. two sections of vertical stirring mills series connection open-circuit grinding system according to any one of claim 1 ~ 3, its feature exist
In：One section of vertical stirring mill（2）With two sections of vertical stirring mills（3）Agitator type be spiral, bar type, disc type
With any one in combined type.
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| CN201720943089.4U CN207254427U (en) | 2017-07-31 | 2017-07-31 | It is used to prepare two sections of vertical stirring mills series connection open-circuit grinding system of zinc oxygen leaching raw material |
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| CN201720943089.4U CN207254427U (en) | 2017-07-31 | 2017-07-31 | It is used to prepare two sections of vertical stirring mills series connection open-circuit grinding system of zinc oxygen leaching raw material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882791A (en) * | 2019-11-25 | 2020-03-17 | 四川龙蟒矿冶有限责任公司 | Efficient selective fine grinding process method and device for schreyerite |
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2017
- 2017-07-31 CN CN201720943089.4U patent/CN207254427U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882791A (en) * | 2019-11-25 | 2020-03-17 | 四川龙蟒矿冶有限责任公司 | Efficient selective fine grinding process method and device for schreyerite |
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