CN204338352U - Grind grading device - Google Patents
Grind grading device Download PDFInfo
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- CN204338352U CN204338352U CN201420645782.XU CN201420645782U CN204338352U CN 204338352 U CN204338352 U CN 204338352U CN 201420645782 U CN201420645782 U CN 201420645782U CN 204338352 U CN204338352 U CN 204338352U
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Abstract
The utility model relates to preparation equipment field, especially a kind of grind grading device.Technical problem to be solved is to provide and a kind ofly ensures that by providing more stable feeding pressure cyclone can the grind grading device of ore dressing of high-quality.Grind grading device, the one-level cyclone comprising slurry input and be communicated with described slurry input, also comprise static press device and second cyclone, the one-level cyclone effluent head of described one-level cyclone is communicated with static press device, static press device is communicated with second cyclone by static pressure efferent duct, and described second cyclone is provided with second cyclone effluent head.The efficiency of cyclone that the part that is skillfully constructed of the present utility model is to have utilized the operating characteristic of cyclone fully to excavate, by the mode that the primary election of one-level cyclone, second cyclone are selected, not only well ensure that the quality of sorting, and also improve the efficiency of sorting.The utility model is particularly useful for the production occasion needing high accuracy ore dressing.
Description
Technical field
The utility model relates to preparation equipment field, especially a kind of grind grading device.
Background technology
At present, in Mineral Processing Industry, various metals mineral are after gathering, owing to needing to dissociate to metalliferous mineral wherein and gangue, therefore all need by entering ball mill and a certain proportion of water yield of annotating carries out wet grinding in subsequent production processing, make mineral reach certain particle size, then by hierarchy system, the separation of products reaching certain particle size is out entered down one manufacturing procedure.In classification process, hydrocyclone is used widely.
Hydrocyclone is as a kind of classifying equipoment, in closed circuit grinding technique, itself and ball mill form grinding classification system, replace spiral classifier or other classifying equipoments, there is structure simple and safeguard facility, energy free consumption, feature that classification efficiency is high, thus make it be able to all can be applied in each stage ore dressing classification process of various mineral.But because Mineral Dressing Process link is more, output can not be constant in a numerical value, thus make current hydrocyclone can stability contorting by feeding pressure, feedstock concentrations and granularity, the situations such as pressure change, change in concentration occur often, thus often causing a part of raw granulate fraction can enter into overflow causes overflow to run slightly, and fine grain particle part can enter underflow to cause underflow to press from both sides thin, thus reduce classification efficiency.On the other hand, feed force directly affects treating capacity and the partition size of cyclone, pressure is larger, flow rate of pulp is higher, and the treating capacity of cyclone is larger, and ore pulp rotary speed and centrifugal force in cyclone is also larger simultaneously, partition size is also thinner, pressure is excessive, and the particulate be mixed in underflow sand setting increases, and pressure is too small, and the coarse grain be mixed in overflow increases, and this all can reduce classification efficiency.
Utility model content
Technical problem to be solved in the utility model is to provide and a kind ofly ensures that by providing more stable feeding pressure cyclone can the grind grading device of ore dressing of high-quality.
The utility model solves the technical scheme that its technical problem adopts: grind grading device, the one-level cyclone comprising slurry input and be communicated with described slurry input, also comprise static press device and second cyclone, the one-level cyclone effluent head of described one-level cyclone is communicated with static press device, static press device is communicated with second cyclone by static pressure efferent duct, and described second cyclone is provided with second cyclone effluent head.
Further, comprise the one-level cyclone underflow end of one-level cyclone, described one-level cyclone underflow end is communicated with slurry input by return duct, described return duct is provided with ore grinding device.
Further, comprise the second cyclone underflow end of second cyclone, described second cyclone underflow end is communicated with slurry input by return duct, described return duct is provided with ore grinding device.
Further, return duct is provided with backflow conveying device.
Further, described static press device is arranged at above second cyclone, and the difference in height between static press device and second cyclone is 9 ~ 15 meters.
Further, comprise slurry input unit, described slurry input unit is communicated with one-level cyclone by slurry input.
Further, described static press device is plenum chamber.
The beneficial effects of the utility model are: when reality uses, slurry to be fractionated is input in one-level cyclone from slurry input, here slurry pressure is dynamic pressure, one-level cyclone carries out preliminary sorting to slurry, after sorting, fine grain particle flow to static press device by the one-level cyclone effluent head of one-level cyclone, static press device is then by being transported to second cyclone by stable slurry pressure, because the pressure of the slurry of input is very stable, so the sorting quality of second cyclone is very high, the particle of the high-quality obtained then is discharged by second cyclone effluent head.The efficiency of cyclone that the part that is skillfully constructed of the present utility model is to have utilized the operating characteristic of cyclone fully to excavate, by the mode that the primary election of one-level cyclone, second cyclone are selected, not only well ensure that the quality of sorting, and also improve the efficiency of sorting.The utility model is particularly useful for the production occasion needing high accuracy ore dressing.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Be labeled as in figure: slurry input 1, slurry input unit 11, one-level cyclone 2, one-level cyclone effluent head 21, one-level cyclone underflow end 22, static press device 3, static pressure efferent duct 31, second cyclone 4, second cyclone effluent head 41, second cyclone underflow end 42, return duct 5, ore grinding device 51, backflow conveying device 52.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Grind grading device as shown in Figure 1, the one-level cyclone 2 comprising slurry input 1 and be communicated with described slurry input 1, also comprise static press device 3 and second cyclone 4, the one-level cyclone effluent head 21 of described one-level cyclone 2 is communicated with static press device 3, static press device 3 is communicated with second cyclone 4 by static pressure efferent duct 31, and described second cyclone 4 is provided with second cyclone effluent head 41.
In view of the operation characteristics of cyclone, slurry pressure directly can affect treating capacity and the partition size of cyclone.Concretely: pressure is larger, then flow rate of pulp is higher, the treating capacity of cyclone is larger, simultaneously, ore pulp rotary speed and centrifugal force in cyclone is also larger, partition size is also thinner, if pressure is excessive, the particulate be mixed in underflow sand setting increases, if pressure is too small, the coarse grain be mixed in overflow increases.Therefore, provide suitable and the slurry pressure of temperature is the key realizing cyclone efficiency operation.Design of the present utility model is based on These characteristics, break traditional classification thinking, by the pre-classification of one-level cyclone 2, then more stable pressure is provided via static press device 3 to second cyclone 4, thus allow second cyclone 4 not only also comprise in slurry quality at slurry pressure to be all in more preferably state, thus ensure that the quality of separation.Last separator is then discharged by second cyclone effluent head 41, enters next step operation.General, relatively stable in order to the slurry that ensures to be input to slurry input 1, can select to set up slurry input unit 11, described slurry input unit 11 is communicated with one-level cyclone 2 by slurry input 1.Certain, in order to simplify overall structure, static press device 3 can be chosen as plenum chamber.
In order to realize coarse grainedly recycling again one-level cyclone 2 is isolated, thus better save slurry, such scheme can be selected: the one-level cyclone underflow end 22 comprising one-level cyclone 2, described one-level cyclone underflow end 22 is communicated with slurry input 1 by return duct 5, and described return duct 5 is provided with ore grinding device 51.Certain, based on same design, also can select following scheme: the second cyclone underflow end 42 comprising second cyclone 4, described second cyclone underflow end 42 is communicated with slurry input 1 by return duct 5, and described return duct 5 is provided with ore grinding device 51.Certain, in order to ensure the backflow efficiency of return duct 5, can select on return duct 5, arrange backflow conveying device 52.
Stablize and suitable pressure for second cyclone 4 provides in order to better, can select such scheme: described static press device 3 is arranged at above second cyclone 4, the difference in height between static press device 3 and second cyclone 4 is 9 ~ 15 meters.Difference in height between static press device 3 and second cyclone 4 not only can well cushion the trickle pressure oscillation passed out from static press device 3, thus makes the pressure that enters second cyclone 4 slurry more stable.
Claims (7)
1. grind grading device, the one-level cyclone (2) comprising slurry input (1) and be communicated with described slurry input (1), it is characterized in that: comprise static press device (3) and second cyclone (4), the one-level cyclone effluent head (21) of described one-level cyclone (2) is communicated with static press device (3), static press device (3) is communicated with second cyclone (4) by static pressure efferent duct (31), and described second cyclone (4) is provided with second cyclone effluent head (41).
2. grind grading device as claimed in claim 1, it is characterized in that: one-level cyclone underflow end (22) comprising one-level cyclone (2), described one-level cyclone underflow end (22) is communicated with slurry input (1) by return duct (5), described return duct (5) is provided with ore grinding device (51).
3. grind grading device as claimed in claim 1, it is characterized in that: the second cyclone underflow end (42) comprising second cyclone (4), described second cyclone underflow end (42) is communicated with slurry input (1) by return duct (5), described return duct (5) is provided with ore grinding device (51).
4. grind grading device as claimed in claim 2 or claim 3, is characterized in that: return duct (5) is provided with backflow conveying device (52).
5. the grind grading device as described in claim 1,2 or 3, it is characterized in that: described static press device (3) is arranged at second cyclone (4) top, and the difference in height between static press device (3) and second cyclone (4) is 9 ~ 15 meters.
6. the grind grading device as described in claim 1,2 or 3, it is characterized in that: comprise slurry input unit (11), described slurry input unit (11) is communicated with one-level cyclone (2) by slurry input (1).
7. the grind grading device as described in claim 1,2 or 3, is characterized in that: described static press device (3) is plenum chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420645782.XU CN204338352U (en) | 2014-10-31 | 2014-10-31 | Grind grading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420645782.XU CN204338352U (en) | 2014-10-31 | 2014-10-31 | Grind grading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204338352U true CN204338352U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420645782.XU Active CN204338352U (en) | 2014-10-31 | 2014-10-31 | Grind grading device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370555A (en) * | 2016-10-10 | 2017-02-01 | 山西汾西矿业（集团）有限责任公司 | Densitometer device for coal dressing system |
-
2014
- 2014-10-31 CN CN201420645782.XU patent/CN204338352U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370555A (en) * | 2016-10-10 | 2017-02-01 | 山西汾西矿业（集团）有限责任公司 | Densitometer device for coal dressing system |
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