CN104502529A - Novel expanded perlite model sand and preparation method thereof - Google Patents
Novel expanded perlite model sand and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a novel expanded perlite model sand and a preparation method thereof, the model sand is prepared by modified closed pore perlite, particle granularity is between 0.1 and 2.0mm, particle unit weight change scope is between 1.12-1.42t/m<3>, and the angle of repose is between 25-33 DEG. The preparation method comprises the following steps: 1)selecting the modified closed pore perlite as a base material; 2)primary selecting base material unit weight; 3)fragmenting the particles; 4)screening particle size; 5)sorting the particle unit weight; 6)preparing the finished product; and 7)detecting and verifying the finished product characteristic. The model sand has the following advantages that 1)the particle unit weight can be artificially adjusted, particle size scope is wide, particle form of the model sand is same with that of the natural sand; 2)physicochemical property is stable, intensity is high, and model sand enables repeatable utilization; 3)angle of repose is large, stable bed surface form can be easily formed, and the model sand has good hydraulics parameter; 4)base material production technology is simple, and can be massively obtained, the product enables large-scale preparation, and production cost is low.
Description
Technical field
The present invention relates to the model sasnd that the experiment of a kind of water conservancy uses, be specifically related to a kind of expansible perlite model sasnd.Invention also relates to the preparation method of this expansible perlite model sasnd, characteristic test and checking.
Background technology
In the research & design process of harbour and waterway engineering, silt physical experiments often uses and is one of very important means, and need the sand that uses a model.The selection of model sasnd is a gordian technique in silt design of physical model, is directly connected to the sediment movement of model and the reliability of river bed deformed similarity and model test results.According to sediment model similarity theory and the current conditions such as test site and equipment, general employing light granular material is as model sasnd, material conventional at present has wood chip, coal dust, plastic sand etc. several, but all there is certain defect, or physico mechanical characteristic is not good enough, easy generation consolidation, flake, bubble, go mouldy, refinement, the phenomenon such as flocculation, or expensive.Use new technology and new technology, development new material model sasnd, has very large realistic meaning, also can promote raising and the development of sediment model experiment technical merit.
Model sasnd produces along with sediment model experiment theory and practice, west and USSR (Union of Soviet Socialist Republics) start sediment model experiment at the end of the thirties, China has carried out first sediment model experiment mid-term the 1950's, the trial-production of lightweight sand and attribute testing research are carried out the sixties, after the seventies, on sediment model basis that is theoretical and that put into practice in a large number, greatly facilitate the development of model sasnd, occur that multiple model sasnd is applied to model test, in prior art, the performance index of common model sand, are shown in the table 1 being placed in Figure of description.
Common model sand can be divided into organic material, inorganic material and synthetic material three class substantially, and front ten kinds in table 1 is organic material, plastics or synthetic plastic, and particle unit weight is less than 1.5t/m
3, belong to lightweight husky; Latter three kinds is inorganic material, and particle unit weight is greater than 1.5t/m
3, belong to heavy husky.The equal successful Application of these model sasnds is in relevant sediment model experiment, and carried out the particle tested particle diameter of physicochemical characteristics, unit weight, the test of unit dry weight, and hydraulic characteristic test, comprise sedimentation, start, defeatedly to move, be shaped etc. under water, simultaneously, by the practice of these sediment model experiments, summarize relative merits and the adaptability of these model sasnds, be summarized as follows: (1) adopts heavy husky, require that model sasnd particle is very tiny, not only processing difficulties and particle is very tiny, there will be viscosity and cross the phenomenons such as strong and flocculation, make test findings distortion, general plain tract sediment model is that starting velocity size scale is large, the distorted model that roughness guide is little, then require that incipient velocity of sediment in model test is little, relative bed roughness is larger, thus large multiplex lightweight is husky.
(2) lightweight of organic material is husky, although hydraulic characteristic is better, applicability strong, general wood chip and walnut shell is perishable, rotten, preservative treatment workload is large, and when particle diameter is larger, particle shape is bad, is unfavorable for recycling; Plastic sand is hydrophobic material, and underwater information warfare is little, and the stability of bed surface of formation is poor, causes and moulds model riverbed difficulty, bed surface caves in and cause test accuracy not high; Greatly, often for meeting similarity of sediment movement, model sasnd is too tiny and occur viscosity and flocculation phenomenon, causes test findings inaccurate for ickings and phenolic moulding powder particle unit weight.
(3) heavy such as coal ash, carclazyte powder, talcum powder is husky, there is the shortcomings such as particle is thin, physico-chemical property is unstable, and being only applicable to the alluvial of some cumulative bad is main simulation test.
(4) plastic sand, comprises phenolic moulding powder and synthetic plastic is husky, expensive.
(5) except synthetic plastic sand, all the other model sasnds are all attached most importance to the fixing material of rate, can not adjusting, often in order to meet a certain characteristic of model sasnd, a part of simulated condition being departed from according to model requirements, bring very large restricted to modelling.
(6) applicability of common model sand is in table 2.
Table 2
Table 2
To sum up, the husky maximum shortcoming of conventional Most models is that heavily rate is fixed or plasticity is bad under water, can not adjust according to model requirements, make when carrying out sediment model experiment, often in order to meet a certain characteristic needs of model sasnd, a part of simulated condition is departed from, bring to modelling very large restricted, or cause the distortion of model test result.Therefore, develop a kind of heavy rate and particle diameter all can manual control, physico-chemical property stablize, cheap and can the model sasnd of a large amount of Productive statistics model test, can to a great extent extended model design leeway, improve the precision of model test, for raising and the development of sediment model experiment theory and technology level, have important practical significance.
Summary of the invention
The object of this invention is to provide a kind of expansible perlite model sasnd.By the selection of a kind of modification closed perlite product, secondary processing, physico mechanical characteristic and hydraulic characteristic test, prove that model sasnd that this kind of modification closed perlite production become can simulate movement of natural silt, can model sasnd be applied as.The invention still further relates to the preparation method of this expansible perlite model sasnd.
The technical scheme completing foregoing invention task is, a kind of expansible perlite model sasnd, is raw material and making by " closed perlite of modification ", that is, by slightly to expand and the perlite product of half closed pore is made as base material.The feature of this expansible perlite model sasnd is, grain graininess between 0.1 ~ 2.0mm, particle changing bulk density scope is at 1.12 ~ 1.42t/m
3between.
Further restriction, expansible perlite model sasnd of the present invention, its underwater information warfare is between 25 ~ 33 °.Best underwater information warfare is between 30 ° ~ 32 °.
Expanded perlite product has perforate perlite (i.e. conventional expanded perlite), closed perlite, bulky grain perlite etc. multiple, commercially produces.Closed perlite belongs to the wherein one in expanded perlite series of products, and closed perlite granularity is generally between 0.1 ~ 3.0mm, and in prose style free from parallelism stacking situation, particle unit weight is at 0.07 ~ 0.2t/m
3between, product surface generally presents glass matter state, and water absorptivity is poor.
Base material-" the modification closed perlite " of the invention described above is existing to be commercially produced.
Above-mentioned " modification closed perlite " refers to the perlite of its small size expansion and half closed pore, compared with common closed perlite, this kind of closed perlite has little and half closed pore (the i.e. surface presentation half glass matter state) feature of expansion amplitude, and thus particle unit weight is large, water absorptivity is slightly strong.
Above-mentioned " modification closed perlite ", its grain graininess is between 0.1 ~ 3.0mm, and in prose style free from parallelism stacking situation, particle unit weight is at 0.2 ~ 0.7t/m
3between.
Above-mentioned " particle changing bulk density scope: at 1.12 ~ 1.42t/m
3between " refer to its particle fully absorb water after the particle unit weight of (surface is not moisture).
More to optimize and more particularly, expansible perlite model sasnd of the present invention adopts the model sasnd that obtains of following preparation method:
(1) base material is selected: select modification closed perlite product as base material, its grain size scope is 0.1 ~ 3.0mm, and in prose style free from parallelism stacking situation, unit weight is at 0.2 ~ 0.7t/m
3between;
(2) the first sorting of base material: stack unit weight by a testing substrates prose style free from parallelism, determine whether to carry out Particle Breakage, if a base material prose style free from parallelism stacks unit weight at 0.55t/m
3above, or surperficial glass matterization is not high, and after water suction, particle unit weight is greater than 1.0t/m
3, can meet the basic demand of model sasnd to particle unit weight, then (broken object is to destroy particle surface glass matter, makes it absorb water, and increases particle unit weight, reaches and be greater than 1.0t/m can not to carry out fragmentation
3basic demand);
(3) Particle Breakage: fragmentation is carried out to this modification closed perlite by size reduction machinery, comprise (in shattering process spontaneous two kinds of situations) by former Particle Breakage or only destroy particle top layer;
(4) grain size screening: the base material after fragmentation is dropped into sieving machine, carries out grain size screening, make it form the equal refining of the substantially close base material of some groups of grain sizes;
(5) particle unit weight sorting: the sorting equal refining of some groups of base materials after screening being carried out to particle unit weight, method has two kinds, and one is by setting up air channel, in air channel, carry out selection by winnowing; Another kind is by setting up tank, carries out wet concentration in the sink;
(6) finished product preparation: according to the requirement of required model sasnd particle unit weight and particle diameter, selects the equal refining of some groups of base materials that particle unit weight is identical, grain size is different, is configured the preparation of model sasnd finished product.
The New model that namely product obtained like this can use as water conservancy experiment is husky.In order to feasibility and the applicability of this model sasnd are described, optimize further, can increase and have following steps:
(7) finished product characteristic test: physico mechanical characteristic and hydrodynamic property test are carried out to the model sasnd finished product after preparation, mainly comprises: particle unit weight and grating test, heavy speed test, initial velocity test, underwater information warfare test, Bed Resistance and form test etc.
(8) finished product checking: according to model sasnd finished product test result, verify its feasibility and applicability.Feasibility refers to that can this finished product use as model sasnd; Applicability refers to this finished product can use in which kind of sediment model experiment.
In other words, expansible perlite model sasnd of the present invention, be select a kind of modification closed perlite product to be base material, its grain graininess is between 0.1 ~ 3.0mm, and in prose style free from parallelism stacking situation, particle unit weight is at 0.2 ~ 0.7t/m
3between; This kind of expansible perlite model sasnd made by this base material through processing process, its grain graininess between 0.1 ~ 2.0mm, particle changing bulk density scope: 1.12 ~ 1.42t/m
3, underwater information warfare is between 25 ~ 33 °.
The technical scheme completing the application's second invention task is, the preparation method of above-mentioned expansible perlite model sasnd, and it is characterized in that, step is as follows:
(1) base material is selected: select modification closed perlite product as base material, its grain size scope is 0.1 ~ 3.0mm, and in prose style free from parallelism stacking situation, unit weight is at 0.2 ~ 0.7t/m
3between;
(2) the first sorting of base material: stack unit weight by a testing substrates prose style free from parallelism, determine whether to carry out Particle Breakage, if a base material prose style free from parallelism stacks unit weight at 0.55t/m
3above, or surperficial glass matterization is not high, and after water suction, particle unit weight is greater than 1.0t/m
3, can meet the basic demand of model sasnd to particle unit weight, then (broken object is to destroy particle surface glass matter, makes it absorb water, and increases particle unit weight, reaches and be greater than 1.0t/m can not to carry out fragmentation
3basic demand);
(3) Particle Breakage: carry out fragmentation to this modification closed perlite base material by size reduction machinery, comprises former Particle Breakage or only destroys particle top layer;
(4) grain size screening: the base material after fragmentation is dropped into sieving machine, carries out grain size screening, make it form the equal refining of the substantially close base material of some groups of grain sizes;
(5) particle unit weight sorting: the sorting equal refining of some groups of base materials after screening being carried out to particle unit weight, method has two kinds, and one is by setting up air channel, in air channel, carry out selection by winnowing; Another kind is by setting up tank, carries out wet concentration in the sink;
(6) finished product preparation: according to the requirement of required model sasnd particle unit weight and particle diameter, selects the equal refining of some groups of base materials that particle unit weight is identical, grain size is different, is configured the preparation of model sasnd finished product.
In order to feasibility and the applicability of this model sasnd are described, can increase and have following steps:
(7) finished product characteristic test: physico mechanical characteristic and hydrodynamic property test are carried out to the model sasnd finished product after preparation, mainly comprises: particle unit weight and grating test, heavy speed test, initial velocity test, underwater information warfare test, Bed Resistance and form test etc.
(8) finished product checking: according to model sasnd finished product test result, verify its feasibility and applicability.Feasibility refers to that can this finished product use as model sasnd; Applicability refers to this finished product can use in which kind of sediment model experiment.
The nonmetal mineral product material of expanded perlite to be a kind of inside the be white granular of cellular structure, has light weight and has corrosion resistant speciality.Because it contains a large amount of hydrophilic mineral, there is larger volume to change during humidity change, produce larger internal stress when distortion is tied, therefore be referred to as expanded perlite.
Expanded perlite raw material is the mineral of the lava chilling in surface water sprayed by volcano, there is the cryptograined texture of similar calcedony, belong to the specific type in soft rock, its proterties is like the non-rock of rock, like native non-soil, extremely close with the relation of water, water wettability is abnormal strong, and its chemical analysis is roughly SiO
270 ~ 75%/, AL
2o
312 ~ 13%; In addition containing a small amount of MgO, CaO, Fe
2o
3and Na
2o, K
2the impurity such as O (all below 2%).Under its natural environment, particle shape is identical with silt, and containing certain moisture content in institutional framework, proportion is at 2.2 ~ 2.3L/m
3between.
The basic production principle of expanded perlite material is: natural peral rock and ore forms the ore in sand form of certain particle size through fragmentation, and then preheating and baking, eventually through the TRANSIENT HIGH TEMPERATURE roasting of instant heating (more than 1000 DEG C).In the process, ore grain structure can produce very large change, the vaporization of structure moisture, disengaging, thus contain vitreous ore grain internal expansion softening, form porous structure, volumetric expansion 10 ~ 30 times, hole increases, unit weight reduces (because be porous structure, after water suction, unit weight increases).
Expanded perlite product has perforate perlite (i.e. conventional expanded perlite), closed perlite, bulky grain perlite etc. multiple, is graininess.Expanded perlite is non-organic thing, and imputrescibility goes bad, and physico-chemical property is stablized, and grain graininess is in extensive range, and particle shape is identical with natural silt, if its particle unit weight (particle fully absorbs water, surface not moisture) is at 1.1 ~ 1.5t/m
3between, just can meet the basic demand of light model sediment.Obviously, conventional expanded perlite product does not meet the requirement of model sasnd, and subject matter is that each product particle unit weight is all much smaller than 1.0t/m
3, can not submerged in the water.By analyzing, perforate perlite expansivity is high, and particle unit weight is little, water absorptivity strong, intensity is lower, not easily as model sasnd base material; Closed perlite is in ore in sand form expansion process, particle top layer glass matter, water-intake rate is very low, intensity is higher, as by closed perlite production technology slightly modified, control its particle unit weight and reach certain value, form the closed perlite product of modification, or make it absorb water conventional closed perlite Particle Breakage, particle unit weight all can be made to be greater than 1.0t/m
3, thus reach the scope required by light model sediment, be just suitable as model sasnd.Distributed more widely in China of expanded perlite, storage capacity enriches, through exploring with relevant perlite manufacturing enterprise, the closed perlite product processes of this kind of modification is also uncomplicated, utilize conventional equipment to produce in a large number, production cost can not be high, lower than the price of plastic sand and phenolic moulding powder.
For light model sediment, its particle physico-chemical property of General Requirements stablize, particle diameter between 0.1 ~ 2mm (being approximately between 70 ~ 160 orders), particle unit weight 1.0 ~ 1.5t/m
3between, underwater information warfare >30 °, and granule strength should reach certain requirement, can not in test operation dispersion and fining easily.Therefore, according to above-mentioned analysis, by selecting modification closed perlite product as base material, design the processing process such as corresponding Particle Breakage, size screening and gravity separation, and controlled working production cost, just can prepare the expansible perlite model sasnd forming required particle unit weight and grating.
This patent, for this type of plain tract waterway regulation sediment model of the middle and lower reach of Yangtze River, is changed to master to simulate change in bed level, and the closed perlite adopting modification is base material, by the following process technological process of production, develops New model sand, reaches following characteristics:
(1) particle unit weight and particle diameter can adjust, particle changing bulk density scope: 1.12 ~ 1.42t/m
3, particle size range is wide, is generally 0.1 ~ 2mm; (character of the model sasnd of this particle properties made by the present invention)
(2) particle shape is identical with natural sand, and underwater information warfare is large, between 25 ~ 33 °, is easily formed and stablizes good Shoal bar;
(3) there is the hydraulic characteristic of good rule, can obtain not moving by initial velocity test, particle on a small quantity in dynamic and a large amount of dynamic three kinds of situations starts stream formula; By heavy speed test matching particle Reynolds-number R
edwith resistance coefficient C
drelation, particle can be obtained and sink fast formula, thus can meet multiple sediment model design needs;
(4) physico-chemical property is stable, imputrescibility rotten, intensity is higher, can reuse;
(5) modification closed perlite production technology is uncomplicated, can obtain in a large number, and thus product can be prepared in a large number, and production cost is not high.
Advantage of the present invention and the difference with other model sasnds:
1, the expansible perlite model sasnd of this invention belongs to lightweight sand, and be applicable to general sediment model, particle unit weight and particle diameter can adjust, particle changing bulk density scope: 1.12 ~ 1.42t/m
3, particle size range is wide, is generally 0.1 ~ 2mm.And most model sasnd is all attached most importance to the fixing material of rate, can not adjust according to model requirements.
2, expansible perlite model sasnd physico-chemical property of this invention is stable, imputrescibility rotten, intensity is high, can reuse.Filled up the heavys such as coal ash, carclazyte powder, talcum powder husky, the shortcoming that particle is thin, physico-chemical property is unstable, also filled up wood chip perishable, rotten, preservative treatment workload is large, is unfavorable for the shortcoming reused.
3, the expansible perlite model sasnd underwater information warfare of this invention is large, easily forms stable Shoal bar, and has the hydraulic parameter (initial velocity, roughness, heavy speed etc.) of good rule.Be better than for hydrophobic material and the plastic sand that underwater information warfare is little, formation stability of bed surface is poor.
4, the expansible perlite model sasnd substrate manufacturing process of this invention is uncomplicated, and can obtain in a large number, product can be prepared in a large number, and production cost is not high, compares, have price advantage with plastic sand, phenolic moulding powder with synthetic plastic sand.
The advantage of each model sasnd concentrated by expansible perlite model sasnd of the present invention, abandoned deficiency, had good development prospect.
Accompanying drawing explanation
Fig. 1 is the performance index of common model sand in prior art.
Embodiment
Embodiment 1, expansible perlite model sasnd and preparation method thereof, New model sand is made up of " modification closed perlite ", its grain graininess between 0.1 ~ 2.0mm, its particle changing bulk density scope is at 1.12 ~ 1.42t/m
3between.Its underwater information warfare is between 25 ~ 33 °.Expansible perlite model sasnd preparation method of the present invention is as follows:
(1) base material is selected: select modification closed perlite product as base material, its grain size scope is 0.1 ~ 3.0mm, and in prose style free from parallelism stacking situation, unit weight is at 0.2 ~ 0.7t/m
3between;
(2) the first sorting of base material: stack unit weight by a testing substrates prose style free from parallelism, determine whether to carry out Particle Breakage, if a base material prose style free from parallelism stacks unit weight at 0.55t/m
3above, or surperficial glass matterization is not high, and after water suction, particle unit weight is greater than 1.0t/m
3, can meet the basic demand of model sasnd to particle unit weight, then (broken object is to destroy particle surface glass matter, makes it absorb water, and increases particle unit weight, reaches and be greater than 1.0t/m can not to carry out fragmentation
3basic demand);
(3) Particle Breakage: carry out fragmentation to this modification closed perlite base material by size reduction machinery, comprises former Particle Breakage or only destroys particle top layer;
(4) grain size screening: the base material after fragmentation is dropped into sieving machine, carries out grain size screening, make it form the equal refining of the substantially close base material of some groups of grain sizes;
(5) particle unit weight sorting: the sorting equal refining of some groups of base materials after screening being carried out to particle unit weight, method has two kinds, and one is by setting up air channel, in air channel, carry out selection by winnowing; Another kind is by setting up tank, carries out wet concentration in the sink;
(6) finished product preparation: according to the requirement of required model sasnd particle unit weight and particle diameter, selects the equal refining of some groups of base materials that particle unit weight is identical, grain size is different, is configured the preparation of model sasnd finished product.
(7) finished product characteristic test: physico mechanical characteristic and hydrodynamic property test are carried out to the model sasnd finished product after preparation, mainly comprises: particle unit weight and grating test, heavy speed test, initial velocity test, underwater information warfare test, Bed Resistance and form test etc.
(8) finished product checking: according to model sasnd finished product test result, verify its feasibility and applicability.Feasibility refers to that can this finished product use as model sasnd; Applicability refers to this finished product can use in which kind of sediment model experiment.
Embodiment 2, substantially the same manner as Example 1, but the underwater information warfare of New model sand is between 30 ~ 32 °.
Form in Fig. 1 is the performance index of common model sand in prior art.
Claims (8)
1. an expansible perlite model sasnd, by " closed perlite of modification " for raw material is made, is characterized in that, the grain graininess of this kind of expansible perlite model sasnd between 0.1 ~ 2.0mm, particle changing bulk density scope is at 1.12 ~ 1.42t/m
3between.
2. expansible perlite model sasnd according to claim 1, is characterized in that, the underwater information warfare of described expansible perlite model sasnd is between 25 ~ 33 °.
3. expansible perlite model sasnd according to claim 2, is characterized in that, the underwater information warfare of described expansible perlite model sasnd is between 30 ~ 32 °.
4. expansible perlite model sasnd according to claim 1, is characterized in that, described raw material " closed perlite of modification ", and its grain graininess is between 0.1 ~ 3.0mm, and in prose style free from parallelism stacking situation, particle unit weight is at 0.2 ~ 0.7 t/m
3between.
5. according to the expansible perlite model sasnd one of claim 1-4 Suo Shu, it is characterized in that, described expansible perlite model sasnd is the model sasnd adopting following preparation method to obtain:
(1) base material is selected: select modification closed perlite product as base material, its grain size scope is 0.1 ~ 3.0mm, and in prose style free from parallelism stacking situation, unit weight is at 0.2 ~ 0.7t/m
3between;
(2) the first sorting of base material: stack unit weight by a testing substrates prose style free from parallelism, determine whether to carry out Particle Breakage, if a base material prose style free from parallelism stacks unit weight at 0.55 t/m
3above, or surperficial glass matterization is not high, and after water suction, particle unit weight is greater than 1.0 t/m
3, the basic demand of model sasnd to particle unit weight can be met, then can not carry out fragmentation;
(3) Particle Breakage: carry out fragmentation to this modification closed perlite base material by size reduction machinery, comprises former Particle Breakage or only destroys particle top layer;
(4) grain size screening: the base material after fragmentation is dropped into sieving machine, carries out grain size screening, make it form the equal refining of the substantially close base material of some groups of grain sizes;
(5) particle unit weight sorting: the sorting equal refining of some groups of base materials after screening being carried out to particle unit weight, method has two kinds, and one is by setting up air channel, in air channel, carry out selection by winnowing; Another kind is by setting up tank, carries out wet concentration in the sink;
(6) finished product preparation: according to the requirement of required model sasnd particle unit weight and particle diameter, selects the equal refining of some groups of base materials that particle unit weight is identical, grain size is different, is configured the preparation of model sasnd finished product.
6. the preparation method of the expansible perlite model sasnd of modification according to claim 1, it is characterized in that, step is as follows:
(1) base material is selected: select the closed perlite product of modification as base material, its grain size scope is 0.1 ~ 3.0mm, and in prose style free from parallelism stacking situation, unit weight is at 0.2 ~ 0.7t/m
3between;
(2) the first sorting of base material: stack unit weight by a testing substrates prose style free from parallelism, determine whether to carry out Particle Breakage, if a base material prose style free from parallelism stacks unit weight at 0.55 t/m
3above, or surperficial glass matterization is not high, and after water suction, particle unit weight is greater than 1.0 t/m
3, the basic demand of model sasnd to particle unit weight can be met, then can not carry out fragmentation;
(3) Particle Breakage: fragmentation is carried out to this modification closed perlite base material by size reduction machinery;
(4) grain size screening: the base material after fragmentation is dropped into sieving machine, carries out grain size screening, make it form the equal refining of the substantially close base material of some groups of grain sizes;
(5) particle unit weight sorting: the sorting equal refining of some groups of base materials after screening being carried out to particle unit weight, method has two kinds, and one is by setting up air channel, in air channel, carry out selection by winnowing; Another kind is by setting up tank, carries out wet concentration in the sink;
(6) finished product preparation: according to the requirement of required model sasnd particle unit weight and particle diameter, selects the equal refining of some groups of base materials that particle unit weight is identical, grain size is different, is configured the preparation of model sasnd finished product.
7. the preparation method of expansible perlite model sasnd according to claim 6, is characterized in that, the Particle Breakage described in step (3), is comprise former Particle Breakage or only destroy particle top layer.
8. the preparation method of the expansible perlite model sasnd according to claim 6 or 7, is characterized in that, increases and has following steps:
(7) finished product characteristic test: physico mechanical characteristic and hydrodynamic property test are carried out to the model sasnd finished product after preparation, includes: particle unit weight and grating test, heavy speed test, initial velocity test, underwater information warfare test, Bed Resistance and form test;
(8) finished product checking: according to model sasnd finished product test result, verify its feasibility and applicability; Feasibility refers to that can this finished product use as model sasnd; Applicability refers to this finished product can use in which kind of sediment model experiment.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105801747A (en) * | 2016-04-01 | 2016-07-27 | 长江水利委员会长江科学院 | Dynamic shore simulation material in river model test and application thereof |
| CN108031541A (en) * | 2017-12-13 | 2018-05-15 | 宁波荣山新型材料有限公司 | A kind of perlite ore half wet process production line and its production technology |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851443A (en) * | 2006-04-28 | 2006-10-25 | 中国科学院力学研究所 | Method for preparing soil for analogue test |
| CN101713175A (en) * | 2009-09-29 | 2010-05-26 | 黄河水利委员会黄河水利科学研究院 | High sediment concentration waterflood river bed tearing simulation test method |
| CN101955612A (en) * | 2010-06-22 | 2011-01-26 | 长江水利委员会长江科学院 | Composite plastic model sand for sediment solid model experiment and preparation method thereof |
| CN102184307A (en) * | 2011-05-27 | 2011-09-14 | 天津大学 | Mix proportion optimization design method for river test model sand |
| CN102967498A (en) * | 2012-12-04 | 2013-03-13 | 中国北方车辆研究所 | Low-gravity simulated lunar soil |
-
2014
- 2014-11-17 CN CN201410655629.XA patent/CN104502529B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1851443A (en) * | 2006-04-28 | 2006-10-25 | 中国科学院力学研究所 | Method for preparing soil for analogue test |
| CN101713175A (en) * | 2009-09-29 | 2010-05-26 | 黄河水利委员会黄河水利科学研究院 | High sediment concentration waterflood river bed tearing simulation test method |
| CN101955612A (en) * | 2010-06-22 | 2011-01-26 | 长江水利委员会长江科学院 | Composite plastic model sand for sediment solid model experiment and preparation method thereof |
| CN102184307A (en) * | 2011-05-27 | 2011-09-14 | 天津大学 | Mix proportion optimization design method for river test model sand |
| CN102967498A (en) * | 2012-12-04 | 2013-03-13 | 中国北方车辆研究所 | Low-gravity simulated lunar soil |
Non-Patent Citations (2)
| Title |
|---|
| 张幸农 等: "新型BZY模型沙的研制及其特性试验研究", 《泥沙研究》 * |
| 薛伟: "新型PS模型沙特性研究", 《河海大学学报（自然科学版）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105801747A (en) * | 2016-04-01 | 2016-07-27 | 长江水利委员会长江科学院 | Dynamic shore simulation material in river model test and application thereof |
| CN105801747B (en) * | 2016-04-01 | 2017-09-22 | 长江水利委员会长江科学院 | Bank simulation material and its application are moved in a kind of river model test |
| CN108031541A (en) * | 2017-12-13 | 2018-05-15 | 宁波荣山新型材料有限公司 | A kind of perlite ore half wet process production line and its production technology |
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| CN104502529B (en) | 2016-09-07 |
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