CN106706485A - Rapid granularity measurement kettle and measurement method - Google Patents
Rapid granularity measurement kettle and measurement method Download PDFInfo
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- CN106706485A CN106706485A CN201710079928.7A CN201710079928A CN106706485A CN 106706485 A CN106706485 A CN 106706485A CN 201710079928 A CN201710079928 A CN 201710079928A CN 106706485 A CN106706485 A CN 106706485A
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- kettle
- granulometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to a rapid granularity measurement kettle and a measurement method. The rapid granularity measurement kettle comprises a hopper, a kettle body, a lifting handle, an overflow pipe, a pulp discharge pipe and an air vent; the hopper is arranged at the top of the kettle body; the lower part of the kettle body is cylindrical, the upper part of the kettle body gradually shrinks to a cone and forms an integrated structure with the hopper, the overflow pipe is connected at the joint of the kettle body and the hopper, the lifting handle is arranged at the side part of the kettle body, the pulp discharge pipe is communicated on the kettle body, and the air vent is arranged at the bottom part of the kettle body. The rapid granularity measurement kettle has the advantages that: the rapid granularity measurement kettle is simple in structure and convenient in operation, no screen is needed, the measurement error is small, the measurement efficiency is high, and the important role of the granularity measurement kettle in scientific researches and production is conveniently played. Meanwhile, the concentration of the ore pulp is rapidly measured.
Description
Technical field
The invention belongs to ore dressing field, more particularly to ore grinding in scientific research and production or the product after grinding-classification operation
Fineness carries out a kind of quick granulometry kettle and measuring method of quick measure.
Background technology
To ensure that formula mog is the key factor of influence sorting index.Ore grinding or mill in ore dressing field scientific research and production
General below the 0.1mm of product granularity after ore deposit graded operation, generally using the percentage composition less than 0.075mm, i.e. ,-
0.075mm% is represented.In scientific research and actual production, general measure method is：First with specified slot size (such as 0.075mm)
Sieve carries out wet screening, then oversize and undersize is filtered respectively, dry, is weighed, and calculates and is less than screen size thing
The percentage by weight of material, the granularity of material as to be measured, formula：Oversize weight/(oversize weight+undersize weight
Amount) × 100%.
Can also first by material filtering to be measured, dry, weigh, take out part representative sample or whole samples with specifying sieve
The sieve of hole size (such as 0.075mm) carries out wet screening, then oversize is filtered, dry, is weighed, and calculates and is less than sieve aperture chi
The percentage of very little material, i.e., the granularity of material to be measured.Formula：(gross weight-oversize weight)/gross weight × 100%.
Sieve method conventional at present, required device is more (to be needed sieve, filter, drying box, is operated for screening
Container, the container of dress on-the-sieve material and undersize material, the balance weighed, from brush, the sieve that material is cleared up on sieve or in container
Wash bottle etc. of material is rinsed in timesharing), water consumption is big, inconvenient operation, the shortcomings of time of measuring is long, measurement error is big, have impact on
Its application in scientific research and production.
In the prior art, number of patent application：201410275457.3, disclose a kind of non-heated ore pulp enriched fineness and quickly survey
Determine method；Number of patent application 201010287095.1, discloses a kind of Multifunctional ore pulp pot and its application method；Above-mentioned two specially
Profit is the measure that granularity is realized using the mode of screening, operates complex.
The content of the invention
To overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of quick granulometry kettle and measuring method,
Simple structure, it is easy to operate, can quickly, efficiently and accurately to raw meal particle size be measured.Using material density and shape, thing
The timing of viscosity one of material concentration and suspended substance in media as well, its sinking speed is only related to grain graininess in material, and granularity is got over
Greatly, sinking speed is bigger.Therefore, when the timing of sedimentation time one, in same device identical settling height, settling amount is bigger, fineness
That is -0.075mm or -0.037mm% values are smaller, and change therebetween follows certain rule.Thus, when can control sedimentation
Between, the material yield below settling height is measured, and calculate granularity.
To achieve the above object, the present invention is achieved through the following technical solutions：
A kind of quick granulometry kettle, including funnel, kettle body, handle, overflow pipe, discharge pipe, blow vent, kettle body top set
Have a funnel, kettle body bottom is cylinder, and it is taper that top gradually tapers up, and with the integrated structure of infundibulate, kettle body and funnel
Junction be connected with overflow pipe, kettle body sidepiece is provided with handle, and discharge pipe is communicated with kettle body, and kettle body bottom is provided with blow vent.
Described granulometry kettle volume is 1200mL, and kettle body footpath is 80mm.
After granulometry kettle is reversed, the pulp volume discharged by discharge pipe accounts for the 2/3 of granulometry kettle volume.
Described granulometry kettle is made up of transparent stearic plastics.
A kind of quick particle size measuring techniques, comprise the following steps：
1) rinse granulometry kettle, it is ensured that in kettle and overflow pipe, discharge pipe and blow vent noresidue material, then use rubber
Stopper the discharge pipe mouth of pipe and blow vent；
2) accessing ore pulp to be measured by kettle body upper funnel expires to kettle and has a small amount of ore pulp to be flowed out from overflow pipe, then uses rubber
Plug stoppers mouth and the overflow pipe mouth of pipe under funnel；If there is ore pulp kettle body outer surface, washed out with clear water；
3) the granulometry kettle for filling ore pulp is weighed, due to pulp volume in kettle, it is known that ore pulp weight and pulp density are
Can calculate, also can be by granulometry kettle and ore pulp gross weight M1With ore pulp mass concentration C comparison tables, table 1 can be fast
Speed learns pulp density；
4) after ore pulp in granulometry kettle is shaken up, spin upside down granulometry kettle and start timing, according to material to be measured
The sinking speed and settling height of granularity, it is known that sedimentation time；After the sedimentation time is reached, blow vent and the discharge pipe mouth of pipe are opened
Plug, ore pulp from discharge pipe flow out, the discharge pipe mouth of pipe is clogged with plug again when ore pulp no longer flows out, again to granulometry
Kettle is weighed；By granulometry kettle and remaining ore pulp gross weight M2With pulp granularity β comparison tables, table 2, you can know ore pulp
Granularity.
Described ore pulp weight and the computational methods of pulp density, comprise the following steps：
A) accessing ore pulp by funnel expires to granulometry kettle and has a small amount of ore pulp to be flowed out from overflow pipe, weighs and obtains M1,
Then：
Weight of material M in ore pulp0：
M0=M1- M (1)
In formula (1)：M is the net weight of granulometry kettle；M1It is granulometry kettle and ore pulp gross weight；
Ore pulp mass concentration C：
In formula (2)：V is pulp volume；δ is the proportion of material, is known or can determine；The proportion of water is 1；
By formula (1) deriving (2)
Ore pulp volume solubility λ：
B) after ore pulp in granulometry kettle is shaken up, granulometry kettle and timing are spun upside down
For specified narrow rank material, co-content solubility, sinking speed difference, do not survey the sedimentation of not co-content solubility
Speed ν, then：
Sedimentation time t=settling heights/ν；
C) after timing t seconds, discharge pipe plug is opened, releases ore pulp, claim the weight of remaining ore pulp and kettle in granulometry kettle
Now pulp volume is 1/3V to M2, then：
Weight of material M in kettle01
Then
The weight of material M of spilling02：
Granularity, i.e., less than the percentage composition β of specified boundary granularity：
Step 3) described in granulometry kettle and ore pulp gross weight M1With ore pulp mass concentration C comparison tables：
Table 1
| M1 | |||||||||||
| C | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
Ore pulp mass concentration C takes a little at equal intervals up and down in suitable concentration, and suitable concentration is 30% in table 1, is interval with 2%
Take a little, then corresponding M is calculated by formula (2)1, table 1 is obtained；
Step 4) described in granulometry kettle and remaining ore pulp gross weight M2With pulp granularity β comparison tables：
Table 2
Percentage composition β less than specified boundary granularity takes a little at equal intervals up and down in fineness, and suitable fineness in table 2-
0.075mm80%, is taken a little by interval of fineness -0.075mm2%, and corresponding M is calculated by formula (6)2, table 2 is obtained；
During actual measurement, only M need to be weighed up2, can table look-up and draw corresponding granularity or the narrow interval of granularity, to realize to ore pulp grain
The quick measurement of degree.
Compared with prior art, the beneficial effects of the invention are as follows：
Quick granulometry kettle simple structure, easy to operate, without screen cloth, measurement error is small, and measurement efficiency is high, makes granularity
Important function of the measurement kettle in scientific research and production is conveniently played.Meanwhile, it is capable of achieving the quick measurement of pulp density.
It is affected by many factors because the subsiding movement of hindered settling is complicated, thus by determining sinking speed and calculating
There is error, but the weight of material M for overflowing in the granularity of acquisition02With fineness being proportionate property of β, remaining ore pulp after the overflow for claiming
With the weight and M of kettle2There is determination rule with the relation between fineness β, be the accuracy of long-term use, for concrete technology or thing
Material, measurement tabulation in advance, then obtain M by weighing1And M2, you can table look-up and know raw meal particle size β, there is effect once and for all.Once survey
Compared with amount is with measurement everyday and secondary measurement more than a day (general ore dressing plant produce reality is to survey once for every 2 hours), efficiency raising
Amplitude is obvious.
Brief description of the drawings
Fig. 1 is the front view of granulometry kettle.
Fig. 2 is the side view of granulometry kettle.
Fig. 3 is the A direction views of Fig. 1.
Fig. 4 is the B direction views of Fig. 1.
In figure：1- funnel 2- kettle body 3- handle 4- overflow pipe 5- discharge pipe 6- blow vents.
Specific embodiment
The present invention is described in detail with reference to Figure of description, it should be noted that implementation of the invention is not limited
In following implementation method.
Fig. 1-Fig. 4 is seen, granulometry kettle is made up of the transparent stearic plastics that hydrophobicity is strong, intensity is high, to ensure that granularity is surveyed
Amount kettle is unlikely to deform, it is to avoid or reduce adhesion of the material in kettle body, and be easy to observe settling phase.A kind of quick granulometry
Kettle, including funnel, kettle body, handle, overflow pipe, discharge pipe, blow vent, kettle body top are provided with funnel, and kettle body bottom is cylinder,
It is taper that top gradually tapers up, and with the integrated structure of infundibulate, kettle body diameter 80mm, 256mm high, volume 1200mL are
Measurement main part.Funnel back cut diameter 80mm, lower port diameter 20mm, in the upper end of kettle body, for adding ore pulp, kettle body is upper and lower
After upset, funnel is then base, makes kettle steady.Kettle body and funnel junction are provided with overflow pipe, fill kettle unnecessary after ore pulp
Ore pulp is excluded from overflow pipe, to ensure that the volume of ore pulp and height are definite value in kettle.Kettle body side is provided with handle, convenient operation.Away from
The kettle body of bottom 160mm is provided with discharge pipe in kettle, and ore pulp is gone out for granulometry kettle upset heel row, and discharge pulp volume is
800mL, accounts for the 2/3 of granulometry kettle total measurement (volume).Kettle body bottom is provided with blow vent, after overturning granulometry kettle, ore pulp in kettle
Subsiding movement is carried out at ambient pressure, and ensures the smooth discharge of ore pulp in ore discharge.
Granulometry kettle coordinates the gentle timer in day (such as stopwatch) to use, and completes granulometry.Quick particle size measuring techniques,
Comprise the following steps：
1) rinse granulometry kettle, it is ensured that in kettle and overflow pipe, discharge pipe and blow vent noresidue material, then use rubber
Stopper the discharge pipe mouth of pipe and blow vent；
2) accessing ore pulp to be measured by kettle body upper funnel expires to kettle and has a small amount of ore pulp to be flowed out from overflow pipe, then uses rubber
Plug stoppers mouth and the overflow pipe mouth of pipe under funnel；If there is ore pulp kettle body outer surface, washed out with clear water；
3) the granulometry kettle for filling ore pulp is weighed, due to (1200mL) known to pulp volume in kettle, ore pulp weight and ore deposit
Slurry concentration can be calculated, also can be by granulometry kettle and ore pulp gross weight M1With ore pulp mass concentration C comparison tables,
Table 1, can quickly learn pulp density；
4) after ore pulp in granulometry kettle is shaken up, spin upside down granulometry kettle and start timing, according to material to be measured
The sinking speed and settling height (1600mL) of granularity, it is known that sedimentation time (should be precalculated before measurement)；Settled when reaching
After time, the plug of blow vent and the discharge pipe mouth of pipe is opened, ore pulp flows out from discharge pipe, uses plug again when ore pulp no longer flows out
The discharge pipe mouth of pipe is clogged, granulometry kettle is weighed again；By granulometry kettle and remaining ore pulp gross weight M2With ore pulp grain
Degree β comparison tables, table 2, you can know pulp granularity.
The computational methods of ore pulp weight and pulp density, comprise the following steps：
A) accessing ore pulp by funnel expires to granulometry kettle and has a small amount of ore pulp to be flowed out from overflow pipe, weighs and obtains M1,
Then：
Weight of material M in ore pulp0：
M0=M1- M (1)
In formula (1)：M is the net weight of granulometry kettle；M1It is granulometry kettle and ore pulp gross weight；
Ore pulp mass concentration C：
In formula (2)：V is pulp volume；δ is the proportion of material, is known or can determine；The proportion of water is 1；
By formula (1) deriving (2)
Ore pulp volume solubility λ：
B) after ore pulp in granulometry kettle is shaken up, granulometry kettle and timing are spun upside down
For specified narrow rank material (want with certain granularity as boundary be classified when, this granularity is exactly boundary grain
Degree, and under normal circumstances less than the boundary granularity then be narrow rank material, under normal circumstances with 200 mesh as boundary, i.e., fineness-
0.075mm), not co-content solubility, sinking speed is different, the sinking speed ν of actual measurement not co-content solubility, then：
Sedimentation time t=settling heights/ν；
C) after timing t seconds, discharge pipe plug is opened, releases ore pulp, claim the weight of remaining ore pulp and kettle in granulometry kettle
Now pulp volume is 1/3V to M2, then：
Weight of material M in kettle01
Then
The weight of material M of spilling02：
Granularity, i.e., less than the percentage composition β of specified boundary granularity：
Step 3) described in granulometry kettle and ore pulp gross weight M1With ore pulp mass concentration C comparison tables：
Table 1
| M1 | |||||||||||
| C | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
Ore pulp mass concentration C takes a little at equal intervals up and down in suitable concentration, and suitable concentration is 30% in table 1, is interval with 2%
Take a little, can use concentration (%) 20,22,24,26,28,30,32,34,36,38,40, then corresponding M is calculated by formula (2)1, system
Obtain table 1；Because ore pulp system is complicated, site environment restriction is operated lack of standardization etc., it is possible to create certain error, can be according to live real
Border and the custom of operator, are revised with measured value to table 1.
During actual measurement, only M need to be weighed up1, can table look-up and draw corresponding concentration or the narrow interval of concentration.It is dense to ore pulp to realize
The quick measurement of degree.
Step 4) described in granulometry kettle and remaining ore pulp gross weight M2With pulp granularity β comparison tables：
Table 2
Percentage composition β less than specified boundary granularity respectively takes several points (with reference to actual feelings at equal intervals up and down in suitable fineness
Condition determines).Such as suitable fineness -0.075mm 80%, can use fineness (- 0.075mm%) 70,72,74,76,78,80,82,84,
86th, 88,90, corresponding M is calculated by formula (6)2, because subsiding movement is influenceed by mechanical force and some complex conditions, and live ore deposit
Slurry system is complicated, and therefore operation etc. in addition, uses after need to being revised to table 2 according to actual measurement.
During actual measurement, only M need to be weighed up2, can table look-up and draw corresponding granularity or the narrow interval of granularity, to realize to ore pulp grain
The quick measurement of degree.
In practical application：
1) in granulometry kettle application process, determine every time, operation should stablize and be consistent, such as after the sedimentation t times, beat
Open the time that thick liquid discharge mouth releases ore pulp.
2) it is affected by many factors because the subsiding movement of hindered settling is complicated, thus by determining sinking speed and calculating
And there is error, but the weight of material M for overflowing in the granularity for obtaining02With fineness being proportionate property of β, remaining ore deposit after the overflow for claiming
The weight and M of slurry and kettle2Have determination rule with the relation between fineness β, be the accuracy of long-term use, for concrete technology or
Material, measurement tabulation in advance, then obtain M by weighing1And M2, you can table look-up and know raw meal particle size β, there is effect once and for all.Once
With measurement everyday and more than a day compared with secondary measurement (general ore dressing plant produce reality is to survey once for every 2 hours), efficiency is improved for measurement
Amplitude be obvious.
Claims (7)
1. a kind of quick granulometry kettle, it is characterised in that including funnel, kettle body, handle, overflow pipe, discharge pipe, blow vent,
Kettle body top is provided with funnel, and kettle body bottom is cylinder, and it is taper that top gradually tapers up, and with the integrated structure of infundibulate,
Kettle body is connected with overflow pipe with the junction of funnel, and kettle body sidepiece is provided with handle, and discharge pipe is communicated with kettle body, and kettle body bottom sets
There is blow vent.
2. a kind of quick granulometry kettle according to claim 1, it is characterised in that described granulometry kettle volume is
1200mL, kettle body footpath is 80mm.
3. a kind of quick granulometry kettle according to claim 1, it is characterised in that after granulometry kettle is reversed, leads to
The pulp volume for crossing discharge pipe discharge accounts for the 2/3 of granulometry kettle volume.
4. a kind of quick granulometry kettle according to claim 1, it is characterised in that described granulometry kettle is by transparent
Stearic plastics are made.
5. the particle size measuring techniques realized using a kind of quick granulometry kettle described in claim 1-4 any one, it is special
Levy and be, comprise the following steps：
1) rinse granulometry kettle, it is ensured that in kettle and overflow pipe, discharge pipe and blow vent noresidue material, then use rubber stopper plug
The tight discharge pipe mouth of pipe and blow vent；
2) accessing ore pulp to be measured by kettle body upper funnel expires to kettle and has a small amount of ore pulp to be flowed out from overflow pipe, then uses rubber stopper
Stopper mouth and the overflow pipe mouth of pipe under funnel；If there is ore pulp kettle body outer surface, washed out with clear water；
3) the granulometry kettle for filling ore pulp is weighed, due to pulp volume in kettle, it is known that ore pulp weight and pulp density can meters
Calculate, also can be by granulometry kettle and ore pulp gross weight M1With ore pulp mass concentration C comparison tables, table 1 can be quick
Know pulp density；
4) after ore pulp in granulometry kettle is shaken up, spin upside down granulometry kettle and start timing, according to raw meal particle size to be measured
Sinking speed and settling height, it is known that the sedimentation time；After the sedimentation time is reached, the glue of blow vent and the discharge pipe mouth of pipe is opened
Plug, ore pulp is flowed out from discharge pipe, and the discharge pipe mouth of pipe is clogged with plug again when ore pulp no longer flows out, and granulometry kettle is claimed again
Weight；By granulometry kettle and remaining ore pulp gross weight M2With pulp granularity β comparison tables, table 2, you can know ore pulp grain
Degree；
Described ore pulp weight and the computational methods of pulp density, comprise the following steps：
A) accessing ore pulp by funnel expires to granulometry kettle and has a small amount of ore pulp to be flowed out from overflow pipe, weighs and obtains M1, then：
Weight of material M in ore pulp0：
M0=M1- M (1)
In formula (1)：M is the net weight of granulometry kettle；M1It is granulometry kettle and ore pulp gross weight；
Ore pulp mass concentration C：
In formula (2)：V is pulp volume；δ is the proportion of material, is known or can determine；The proportion of water is 1；
By formula (1) deriving (2)
Ore pulp volume solubility λ：
B) after ore pulp in granulometry kettle is shaken up, granulometry kettle and timing are spun upside down
For specified narrow rank material, co-content solubility, sinking speed difference, do not survey the sinking speed of not co-content solubility
ν, then：
Sedimentation time t=settling heights/ν；
C) after timing t seconds, open discharge pipe plug, release ore pulp, claim remaining ore pulp and kettle in granulometry kettle weight M2 this
When pulp volume be 1/3V, then：
Weight of material M in kettle01
Then
The weight of material M of spilling02：
Granularity, i.e., less than the percentage composition β of specified boundary granularity：
6. a kind of quick particle size measuring techniques according to claim 5, it is characterised in that step 3) described in granulometry
Kettle and ore pulp gross weight M1With ore pulp mass concentration C comparison tables：
Table 1
Ore pulp mass concentration C takes a little at equal intervals up and down in suitable concentration, and suitable concentration is 30% in table 1, with 2% for interval takes
Point, then corresponding M is calculated by formula (2)1, table 1 is obtained.
7. a kind of quick particle size measuring techniques according to claim 5, it is characterised in that step 4) described in granulometry
Kettle and remaining ore pulp gross weight M2With pulp granularity β comparison tables：
Table 2
Percentage composition β less than specified boundary granularity takes a little at equal intervals up and down in fineness, and suitable fineness in table 2-
0.075mm80%, is taken a little by interval of fineness -0.075mm2%, and corresponding M is calculated by formula (6)2, table 2 is obtained；
During actual measurement, only M need to be weighed up2, can table look-up and draw corresponding granularity or the narrow interval of granularity, to realize to pulp granularity
Quick measurement.
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