CN103760075B - The static settlement parameter assay method of a kind of iron ore concentrate ore pulp - Google Patents
The static settlement parameter assay method of a kind of iron ore concentrate ore pulp Download PDFInfo
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Abstract
The present invention proposes the assay method of the static settlement parameter of a kind of iron ore concentrate ore pulp, comprising: one, extract ore pulp and be divided into two parts and be placed in two identical sedimentation bottles and stir; Two, ore pulp weight concentration initial value C is measured
w0with the dry mineral density of ore pulp; Three, determine to record the time interval point in settling ore pulp process; Four, amass by the ore body that each time interval point in the time interval point record settling process determined is corresponding; Five, draw the time dependent scatter diagram of settling process chats volume, and matching obtains funtcional relationship, draws ore pulp maximum settlement speed; Six, calculate ore pulp weight concentration maximal value, pulp solids particle percent in volume initial value and maximal value, complete the mensuration to the static settlement parameter of iron ore concentrate ore pulp.The method of the invention is that the maintenance of the Slurry Pipeline Transportation system failure, equipment replacement etc. provide parameter foundation accurately, has ensured that the long-term stability of slurry transportation pipeline system is run.
Description
Technical field
The present invention relates to the static sedimentation techniques field of non-uniform granular colony, relate to the static settlement parameter determination techniques of non-uniform granular colony more specifically, the static settlement parameter assay method of especially a kind of iron ore concentrate ore pulp.
Background technology
In iron ore concentrate ore slurry pipeline transportation; when pipeline is shut down because of fault or need of production band slurry; or when the tank diameter storing ore pulp breaks down and shuts down; ore pulp slurry all can be caused to stop in conveyance conduit; because the solid material in slurry in time sedimentation can occur; and once solid material just can cause line clogging in pipeline after complete sedimentation, conveying cannot be continued, and then cause whole Slurry Pipeline Transportation systemic breakdown.Therefore when pipeline breaks down or tank diameter needs shutdown maintenance; must complete before the complete sedimentation of ore pulp slurry material in pipeline; this just needs to know accurately the static settlement parameter feature of transfer ore pulp slurry in pipeline; these static settlement parameters comprise maximum settlement speed, weight concentration value, solid particle percent by volume etc.; such as when after the maximum settlement speed parameter knowing slurry; just can obtain the time needed for the complete sedimentation of slurry, and then can determine that pipeline fault maintenance or tank diameter keep in repair the maximum stop time that can allow.This is for ensureing that the normal operation meaning of whole Slurry Pipeline Transportation system is very great.Single to the sedimentation experiment Measures compare of Cemented filling ore pulp slurry static settlement parameter mensuration in prior art, most time and ore pulp difference in height that can only detect the complete sedimentation of ore pulp slurry roughly, and the average velocity of the complete sedimentation of ore pulp is calculated based on this, the assay method of this prior art is comparatively coarse, precision is extremely low, not only precisely cannot measure the static settling character of ore pulp slurry all sidedly, and measurement result is very coarse, valuable supplemental characteristic cannot be provided for settling ore pulp process.
Summary of the invention
The present invention is based on above-mentioned prior art problem, the proposition of innovation is a kind of especially for the Accurate Determining method of the static settlement parameter of iron ore concentrate ore pulp, described assay method carries out experiment sedimentation by gathering ore pulp slurry, and in settling process after each basic parameter of Accurate Determining, the each static settlement parameter of employing each basic parameter accurate Characterization of innovation, for the breakdown maintenance, equipment replacement etc. of Slurry Pipeline Transportation system provide parameter foundation accurately, ensure that the long-term stability of slurry transportation pipeline system is run.
It is as follows that the present invention solves the problems of the technologies described above taked technical scheme:
The assay method of the static settlement parameter of a kind of iron ore concentrate ore pulp, the static settlement parameter of described iron ore concentrate ore pulp comprises: ore pulp maximum settlement speed, ore pulp weight concentration initial value, ore pulp weight concentration maximal value, pulp solids particle percent in volume initial value and pulp solids particle percent in volume maximal value, and described assay method comprises the following steps:
Step one, in the conveyance conduit of iron ore concentrate ore pulp, extract ore pulp, then the ore pulp of extraction is evenly divided into two parts and is placed in two identical sedimentation bottles and stirs respectively;
Step 2, mensuration ore pulp weight concentration initial value C
w0with the dry mineral density ρ of ore pulp
s, specifically comprise: the gross mass M of ore pulp in one of them sedimentation bottle in measuring process one, then will measure the dry ore deposit mass M of ore pulp after the ore pulp natural air drying in described sedimentation bottle
0, by M
0/ M obtains the initial value C of ore pulp weight concentration
w0, and by extracting the dry ore deposit amount of predetermined, record the dry mineral density ρ of ore pulp
s;
Step 3, the ore pulp weight concentration initial value C recorded according to step 2
w0, determine the time dependent time interval point of record settling ore pulp process chats volume;
Step 4, the sedimentation bottle that in step one, another is equipped with the ore pulp that stirs is rested on level table, read the initial liquid level volume V of ore pulp slurry
0, and measure liquid level volume V
0corresponding vertical height h, then according to the time interval point determined in step 3, the ore body in record settling ore pulp process corresponding to each time interval point amasss V, and the ore body read after the complete sedimentation of ore pulp amasss V
1, record the supernatant density p on ore pulp upper strata after sedimentation simultaneously
l, it is the ore pulp slurry volume be in settling process below supernatant that described ore body amasss V, is directly read by sedimentation bottle;
Step 5, data measured by step 4, draw the scatter diagram of settling process chats volume V t change in time, then each loose point is connected into Trendline, and obtain ore body by matching and amass function changing relation between V and time t, and draw most settling time and the maximum settlement speed v of ore pulp accordingly
max, concrete ordinate of getting is that ore body amasss, and horizontal ordinate is the time, amasss the variation tendency line between the time by matching settling ore pulp initial stage ore body, obtains the function changing relation that described ore body amasss V and time t and meets linear equation with one unknown formula V=-at+V
0, wherein V
0for initial liquid level volume, a is fitting a straight line slope, wherein the most settling time t of ore pulp
0=V
0/ a, maximum settlement speed v
max=h/t
0=ah/V
0, h is the volume of initial liquid level described in step 4 V
0corresponding vertical height;
Step 6, the data recorded according to These steps, calculate the ore pulp weight concentration maximal value C of iron ore concentrate
w1, pulp solids particle percent in volume initial value Φ
sat0with pulp solids particle percent in volume maximal value Φ
sat1, complete the mensuration to the static settlement parameter of iron ore concentrate ore pulp; Concrete described ore pulp weight concentration maximal value C
w1by relational expression C
w1=ρ
s/ (V
1ρ
sρ
l/ M
0-ρ
l+ ρ
s) calculate, wherein ρ
sfor the dry mineral density of the ore pulp obtained in step 2, V
1for the ore body after the complete sedimentation of the ore pulp obtained in step 4 amasss, ρ
lfor the supernatant density on ore pulp upper strata obtained in step 4, M
0the ore pulp obtained for step 2 does mineral amount; Described pulp solids particle percent in volume initial value Φ
sat0by relational expression Φ
sat0=C
w0* ρ
m/ ρ
scalculate, wherein ρ
mfor the initial slurry density before settling ore pulp, by relational expression ρ
m=1/ [C
w0/ ρ
s+ (1-C
w0)/ρ
l] determine, wherein C
w0for the ore pulp weight concentration initial value that step 2 obtains, ρ
sfor the dry mineral density of the ore pulp obtained in step 2, ρ
lfor the supernatant density on ore pulp upper strata obtained in step 4; Described pulp solids particle percent in volume maximal value Φ
sat1by relational expression Φ
sat1=C
w1* ρ
1/ ρ
scalculate, wherein ρ
1for remaining the density of ore pulp after removing supernatant after the complete sedimentation of ore pulp, by relational expression ρ
1=1/ [C
w1/ ρ
s+ (1-C
w1)/ρ
l] determine, wherein C
w1for ore pulp weight concentration maximal value, ρ
sfor the dry mineral density of the ore pulp obtained in step 2, ρ
lfor the supernatant density on ore pulp upper strata obtained in step 4.
Further according to assay method of the present invention, in wherein said step one, in the middle part of the conveyance conduit of iron ore concentrate ore pulp, extract the ore pulp slurry that can represent transfer ore pulp average characteristics in pipeline.
Further according to assay method of the present invention, the ore pulp weight concentration initial value C wherein obtained in step 2
w0be between 60-70%, time interval of determining in step 3 point is 0,1,2,4,6,8,10,15,20,25,30,35,40,50,60,120,240,1440, and chronomere is minute.
Further according to assay method of the present invention, in wherein said step 4, described initial liquid level volume V
0be in more than 1000ml.
Further according to assay method of the present invention, wherein said ore pulp weight concentration maximal value C
w1be between 80-90%, described pulp solids particle percent in volume initial value Φ
sat0be between 0.2-0.35, described pulp solids particle percent in volume maximal value Φ
sat1be between 0.4-0.6.
At least following technique effect can be reached by technical scheme of the present invention:
1), the invention provides the one static settlement parameter assay method of ore pulp accurately, for comprehensive and accurate understanding Cemented filling ore pulp characteristic provides important evidence.
2) the static settlement parameter of ore pulp slurry, by the method for the invention measured, can provide foundation for the breakdown maintenance of Slurry Pipeline Transportation system, equipment replacement etc., ensure that the long-term stability of Slurry Pipeline Transportation system is run.
Accompanying drawing explanation
Accompanying drawing 1 is the ore pulp slurry volume of mensuration and the fit correlation schematic diagram between the settling time in the embodiment of the present invention 1.
Embodiment
Below the Accurate Determining method of the static settlement parameter of iron ore concentrate ore pulp of the present invention is described in detail, to enable those skilled in the art understanding the present invention clearly, but does not therefore limit the scope of the invention.
In the Accurate Determining method of the static settlement parameter of iron ore concentrate ore pulp of the present invention, the static settlement parameter of the iron ore concentrate ore pulp measured comprises ore pulp maximum settlement speed, the initial value of ore pulp weight concentration and the initial value of maximal value and pulp solids particle percent in volume and maximal value, specifically comprises the following steps:
Step one, in the pipeline of conveying iron ore concentrate ore pulp, extract a part of ore pulp as determination object, the ore pulp extracted preferably is positioned at the representative ore pulp slurry that can reflect pipeline transfer ore pulp average characteristics in the middle part of pipeline, and extracted ore pulp is evenly divided into two parts and is positioned in two identical sedimentation bottles and stirs respectively, because the quality of identical sedimentation bottle is substantially identical (measuring in advance), therefore by measuring the quality of two sedimentation bottles after placing ore pulp and making its numerical value equal, extracted ore pulp evenly can be divided into two parts.
The initial value C of step 2, mensuration ore pulp weight concentration
w0, described weight concentration initial value C
w0implication be the ratio of dry mineral amount after ore pulp anhydrates and ore pulp initial mass, i.e. C
w0=M
0/ M, M
0for dry mineral amount, M is ore pulp initial mass.Concrete: in measuring process one, one of them is equipped with the gross mass of the sedimentation bottle of ore pulp, then namely the empty bottle quality deducting sedimentation bottle obtains the mass M of ore pulp in described sedimentation bottle, then by the ore pulp in this sedimentation bottle by natural air drying to remove all moisture wherein, measure the dry ore deposit mass M obtaining ore pulp
0, by M
0/ M obtains the initial value C of ore pulp weight concentration
w0, and by extracting the dry ore deposit amount of predetermined, obtain the density p in dry ore deposit
s.
Step 3, the ore pulp weight concentration initial value C obtained according to step 2 measurement
w0determine the time dependent time interval point of record settling ore pulp process chats volume, the determination principle of described time interval point is: ore pulp weight concentration value is larger, represents that ore pulp gets over thickness, its settling velocity is then slower, and record ore body amasss point of the time dependent time interval can be relatively large; If contrary ore pulp weight concentration value is less, represent that ore pulp is rarer, then relatively hurry up, record ore body amasss point of the time dependent time interval should be relatively smaller for its settling velocity.In most cases record ore body amasss point of the time dependent time interval and is generally set to 0,1,2,4,6 ... 30,35,40 ... 60,120,240,1440, chronomere is minute (min).
The sedimentation bottle that in step 4, step one, another is equipped with the ore pulp that stirs rests on level table, first reads the initial liquid level volume V of ore pulp slurry
0, preferred described V
0get 1000ml to be advisable, then start stopwatch and start timing, be as the criterion according to the time interval point set in step 3, ore body in record settling ore pulp process corresponding to each time interval point amasss V, in most cases the ore body recorded between 0 minute-24 hours (1440min) amasss V, most ore pulp 24 hours substantially can sedimentation completely, ore body is long-pending with after corresponding time point record, measure the temperature of ore pulp in sedimentation bottle, wherein said ore body amasss the volume that V is ore pulp slurry in settling process, because most ore pulp, especially iron ore concentrate ore pulp is when sedimentation, boundary between ore pulp slurry and upper strata clear water (supernatant) clearly, the ore body recorded in described settling process amasss V and is the ore pulp slurry volume reading be in below supernatant, directly can be read by sedimentation bottle.Until the complete sedimentation of ore pulp and the boundary between ore pulp slurry and supernatant not when changing, the ore body read after complete sedimentation amasss V
1, extract the part supernatant of designated volume simultaneously, record its density p
l.
Step 5, the data measured by step 4 to be processed, and try to achieve ore pulp maximum settlement speed.First draw the ore body recorded in whole settling process and amass time dependent scatter diagram, getting ordinate is the record value that ore body amasss V, and horizontal ordinate is that each ore body amasss corresponding time interval point value, then the connection of each loose point is fitted to Trendline.Loose some Trendline of effectively loose point and settling ore pulp speed part is drawn by adjustment, because when just starting, ore pulp weight concentration value is minimum, corresponding settling velocity is maximum, and sedimentation chats volume V and the variation relation of time are in line relation substantially, the straight line that when therefore just having started sedimentation by matching, ore body amasss V and time-varying relationship can obtain ore pulp maximum settlement speed.Obtain ore body long-pending (V) by matching and meet linear equation with one unknown formula V=-at+V with time (t) variation relation
0, wherein V
0for the initial liquid level volume of ore pulp, a is the slope of fitting a straight line, and corresponding to initial settlement process, a value is maximum, also corresponds to maximum settlement speed, therefore according to this relation V=-at+V
0, (get the situation of 0 corresponding to relational expression chats volume (V)) when the complete sedimentation of ore pulp completes, corresponding settling time t
1=V
0/ a, is the most settling time of ore pulp, measures initial ore body and amass V
0the corresponding vertical height h of position in sedimentation bottle, then maximum settlement speed v
max=h/t
1=ah/V
0.
Step 6, survey calculation result based on above steps, try to achieve all parameters of the static sedimentation of ore pulp.Following parameter has been recorded to step 5: dry ore deposit mass M by step one
0, ore pulp initial mass M, dry mineral density ρ
s, ore pulp initial volume V
0, V
0ore body after corresponding vertical height h, the complete sedimentation of ore pulp amasss V
1, the density p of supernatant after the complete sedimentation of ore pulp
l, settling ore pulp fit correlation V=-at+V
0, calculate all required arguments in the static settling process of ore pulp based on these parameters:
(1) the most settling time t of ore pulp
1=V
0/ a;
(2) maximum settlement speed v
max=h/t
1=ah/V
0;
(3) the initial value C of ore pulp weight concentration
w0=M
0/ M;
(4) maximal value (remaining the weight concentration of ore pulp after removing supernatant after the complete sedimentation of the ore pulp) C of ore pulp weight concentration
w1, by following relational expression:
C
w1=M
0/M
1=M
0/(V
1*ρ
1)①，ρ
1=1/[C
w1/ρ
s+(1-C
w1)/ρ
L]②
Obtain C
w1=ρ
s/ (V
1ρ
sρ
l/ M
0-ρ
l+ ρ
s), wherein M
1for remaining the quality of ore pulp after removing supernatant after the complete sedimentation of ore pulp, ρ
1for remaining the density of ore pulp after removing supernatant after the complete sedimentation of ore pulp, each parameter V asked for before bringing into
1, ρ
s, ρ
l, M
0the maximal value C of ore pulp weight concentration can be obtained
w1.
(5) the initial value Φ of pulp solids particle percent in volume
sat0, tried to achieve by following relation:
Φ
sat0=C
w0*ρ
m/ρ
s
Wherein ρ
mfor the initial density before settling ore pulp, by relational expression ρ
m=1/ [C
w0/ ρ
s+ (1-C
w0)/ρ
l] try to achieve, the ore pulp weight concentration initial value C tried to achieve before bringing into
w0and ρ
s, ρ
letc. parameter, the initial value Φ of pulp solids particle percent in volume can be tried to achieve
sat0, also can by ρ
m=ore pulp initial mass M/ ore pulp initial volume V
0try to achieve.
(6) the maximal value Φ of pulp solids particle percent in volume
sat1, tried to achieve by following relation:
Φ
sat1=C
w1*ρ
1/ρ
s
Wherein ρ
1for remaining the density of ore pulp after removing supernatant after the complete sedimentation of ore pulp, by foregoing relationships 2. ρ
1=1/ [C
w1/ ρ
s+ (1-C
w1)/ρ
l] try to achieve, the ore pulp weight concentration maximal value C tried to achieve before bringing into
w1and ρ
s, ρ
lthe maximal value Φ of pulp solids particle percent in volume can be tried to achieve
sat1.
embodiment 1
Below provide according to the preferred embodiment that carry out Accurate Determining of said method of the present invention to the static settlement parameter of iron ore concentrate ore pulp.
Step one, in two identical sedimentation bottles each iron ore concentrate ore pulp extracting 1000mL;
Step 2, take the gross mass of one of them sedimentation bottle, and deduct the initial mass M that sedimentation bottle empty bottle quality obtains iron ore concentrate ore pulp, then by after the iron ore concentrate ore pulp natural air drying in this sedimentation bottle, the dry ore deposit mass M that iron ore concentrate ore pulp is corresponding is taken in the same way
0, and measure its dry mineral density ρ
s, then calculate the initial value C of iron ore concentrate ore pulp weight concentration
w0=M
0/ M.
Step 3, the ore pulp weight concentration initial value C obtained according to step 2 measurement
w0, determine that the time dependent time interval point of record settling ore pulp process chats volume is: 0,1,2,4,6 ... 30,35,40 ... 1440, chronomere is minute (min).
Step 4, the sedimentation bottle that in step one, another is equipped with the ore pulp that stirs is rested on level table, then start stopwatch and start timing, be as the criterion according to the time interval point set in step 3, ore body in record settling ore pulp process corresponding to each time interval point amasss V, and after the complete sedimentation of ore pulp, reads ore body amass V
1=631ml, records the density p of supernatant simultaneously
l.
Step 5, the time dependent scatter diagram of Plotting data settling process chats volume utilizing step 4 to record, as shown in Figure 1, ordinate is taken as that ore body amasss V, horizontal ordinate is taken as time value, then the connection of each loose point is fitted to Trendline, as shown in Figure 1, obtain ore body long-pending (V) by loose some Trendline of matching settling ore pulp speed part and meet linear equation with one unknown formula V=-13.865t+1000 with time (t) variation relation.
Step 6, survey calculation result based on each step, in conjunction with the calculation relational expression in embodiment, try to achieve the static settlement parameter of iron ore concentrate ore pulp, as shown in the table:
Below be only that the preferred embodiment of the present invention is described; technical scheme of the present invention is not limited to this; the any known distortion that those skilled in the art do on the basis that major technique of the present invention is conceived all belongs to the claimed technology category of the present invention, and the concrete protection domain of the present invention is as the criterion with the record of claims.
Claims (5)
1. the assay method of the static settlement parameter of iron ore concentrate ore pulp, the static settlement parameter of described iron ore concentrate ore pulp comprises: ore pulp maximum settlement speed, ore pulp weight concentration initial value, ore pulp weight concentration maximal value, pulp solids particle percent in volume initial value and pulp solids particle percent in volume maximal value, it is characterized in that, described assay method comprises the following steps:
Step one, in the conveyance conduit of iron ore concentrate ore pulp, extract ore pulp, then the ore pulp of extraction is evenly divided into two parts and is placed in two identical sedimentation bottles and stirs respectively;
Step 2, mensuration ore pulp weight concentration initial value C
w0with the dry mineral density ρ of ore pulp
s, specifically comprise: the gross mass M of ore pulp in one of them sedimentation bottle in measuring process one, then will measure the dry ore deposit mass M of ore pulp after the ore pulp natural air drying in described sedimentation bottle
0, by M
0/ M obtains the initial value C of ore pulp weight concentration
w0, and by extracting the dry ore deposit amount of predetermined, record the dry mineral density ρ of ore pulp
s;
Step 3, the ore pulp weight concentration initial value C recorded according to step 2
w0, determine the time dependent time interval point of record settling ore pulp process chats volume;
Step 4, the sedimentation bottle that in step one, another is equipped with the ore pulp that stirs is rested on level table, read the initial liquid level volume V of ore pulp slurry
0, and measure liquid level volume V
0corresponding vertical height h, then according to the time interval point determined in step 3, the ore body in record settling ore pulp process corresponding to each time interval point amasss V, and the ore body read after the complete sedimentation of ore pulp amasss V
1, record the supernatant density p on ore pulp upper strata after sedimentation simultaneously
l, it is the ore pulp slurry volume be in settling process below supernatant that described ore body amasss V, is directly read by sedimentation bottle;
Step 5, data measured by step 4, draw the scatter diagram of settling process chats volume V t change in time, then each loose point is connected into Trendline, and obtain ore body by matching and amass function changing relation between V and time t, and draw most settling time and the maximum settlement speed v of ore pulp accordingly
max, concrete ordinate of getting is that ore body amasss, and horizontal ordinate is the time, amasss the variation tendency line between the time by matching settling ore pulp initial stage ore body, obtains the function changing relation that described ore body amasss V and time t and meets linear equation with one unknown formula V=-at+V
0, wherein V
0for initial liquid level volume, a is fitting a straight line slope, wherein the most settling time t of ore pulp
0=V
0/ a, maximum settlement speed v
max=h/t
0=ah/V
0, h is the volume of initial liquid level described in step 4 V
0corresponding vertical height;
Step 6, the data recorded according to These steps, calculate the ore pulp weight concentration maximal value C of iron ore concentrate
w1, pulp solids particle percent in volume initial value Φ
sat0with pulp solids particle percent in volume maximal value Φ
sat1, complete the mensuration to the static settlement parameter of iron ore concentrate ore pulp; Concrete described ore pulp weight concentration maximal value C
w1by relational expression C
w1=ρ
s/ (V
1ρ
sρ
l/ M
0-ρ
l+ ρ
s) calculate, wherein ρ
sfor the dry mineral density of the ore pulp obtained in step 2, V
1for the ore body after the complete sedimentation of the ore pulp obtained in step 4 amasss, ρ
lfor the supernatant density on ore pulp upper strata obtained in step 4, M
0the ore pulp obtained for step 2 does mineral amount; Described pulp solids particle percent in volume initial value Φ
sat0by relational expression Φ
sat0=C
w0* ρ
m/ ρ
scalculate, wherein ρ
mfor the initial slurry density before settling ore pulp, by relational expression ρ
m=1/ [C
w0/ ρ
s+ (1-C
w0)/ρ
l] determine, wherein C
w0for the ore pulp weight concentration initial value that step 2 obtains, ρ
sfor the dry mineral density of the ore pulp obtained in step 2, ρ
lfor the supernatant density on ore pulp upper strata obtained in step 4; Described pulp solids particle percent in volume maximal value Φ
sat1by relational expression Φ
sat1=C
w1* ρ
1/ ρ
scalculate, wherein ρ
1for remaining the density of ore pulp after removing supernatant after the complete sedimentation of ore pulp, by relational expression ρ
1=1/ [C
w1/ ρ
s+ (1-C
w1)/ρ
l] determine, wherein C
w1for ore pulp weight concentration maximal value, ρ
sfor the dry mineral density of the ore pulp obtained in step 2, ρ
lfor the supernatant density on ore pulp upper strata obtained in step 4.
2. assay method according to claim 1, is characterized in that, in wherein said step one, extracts the ore pulp slurry that can represent transfer ore pulp average characteristics in pipeline in the middle part of the conveyance conduit of iron ore concentrate ore pulp.
3. assay method according to claim 1, is characterized in that, the ore pulp weight concentration initial value C wherein obtained in step 2
w0be between 60-70%, time interval of determining in step 3 point is 0,1,2,4,6,8,10,15,20,25,30,35,40,50,60,120,240,1440, and chronomere is minute.
4. assay method according to claim 1, is characterized in that, in wherein said step 4, and described initial liquid level volume V
0be in more than 1000ml.
5. assay method according to claim 1, wherein said ore pulp weight concentration maximal value C
w1be between 80-90%, described pulp solids particle percent in volume initial value Φ
sat0be between 0.2-0.35, described pulp solids particle percent in volume maximal value Φ
sat1be between 0.4-0.6.
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| US6044703A (en) * | 1994-04-26 | 2000-04-04 | Cytec Technology Corp. | Settling process analysis device and method |
| CN1253620A (en) * | 1994-04-26 | 2000-05-17 | Cytec技术有限公司 | Settling process analysis device and method |
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| JP2003098062A (en) * | 2001-09-21 | 2003-04-03 | Sefa Technology Kk | Sedimentation velocity measuring method and its device |
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|---|---|---|---|---|
| US6044703A (en) * | 1994-04-26 | 2000-04-04 | Cytec Technology Corp. | Settling process analysis device and method |
| CN1253620A (en) * | 1994-04-26 | 2000-05-17 | Cytec技术有限公司 | Settling process analysis device and method |
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