CN104474970B - A kind of ceramsite sand blastocyte and preparation method thereof - Google Patents
A kind of ceramsite sand blastocyte and preparation method thereof Download PDFInfo
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- CN104474970B CN104474970B CN201410717867.9A CN201410717867A CN104474970B CN 104474970 B CN104474970 B CN 104474970B CN 201410717867 A CN201410717867 A CN 201410717867A CN 104474970 B CN104474970 B CN 104474970B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/14—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating dishes or pans
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
Abstract
The invention discloses a kind of ceramsite sand blastocyte and preparation method thereof, belongs to technical field of petroleum extraction, poor, the low problem of product percent of pass that carries out, using automatic granulator, circularity, sphericity that ceramsite sand granulation is present in prior art is solved.A kind of preparation method of ceramsite sand blastocyte, method include：Step 1, is puddled to granulating raw material using comminutor, is then mixed granulating raw material with water, obtains compound；Step 2, carries out balling-up to compound, and balling-up at least includes two stages, and the rotor speed of the latter half is less than the rotor speed of previous stage adjacent thereto；Step 3, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot.Preferably, balling-up includes 3 stages：Rotor speed is maximum speed, 90～140s of run time；Rotor speed is 70～80%, 290～400s of run time of maximum speed；Rotor speed is 40～55%, 100～180s of run time of maximum speed.
Description
Technical field
The invention belongs to technical field of petroleum extraction, more particularly to a kind of preparation method of ceramsite sand blastocyte, Yi Jiyong
Ceramsite sand prepared by the method.
Background technology
Ceramsite sand, is exactly the particle of ceramic, and thinner is referred to as sand, also known as petroleum fracturing propping agent.Ceramsite sand is most of
Rounded or oval-shaped ball, but also have some imitative rubble haydites in irregular rubble shape.
Conventional pelletizing equipment is " sugar-coat " machine, and by water, powder during preparation, continuity, the addition of small lot, when single-deck is granulated
Between more than 4 hours, the rotating disk by comminutor completely is rolled and obtains spherical shape little particle, and which is long the time required to having the disadvantage granulation, close
Lattice rate is low, artifical influence factor big, work under bad environment, and inefficiency yields poorly, it is difficult to meet petroleum industry to ceramsite sand
Demand.
The high degree of automation of automatic granulator, powder, water are disposably added in comminutor, and granulation machine rotor is in granulating
During keep maximum speed, by the rotating disk gradient of comminutor and the effect of inner rotator, (15 minutes within a short period of time
Within) formed spherical shape little particle, i.e. ceramsite sand blastocyte, its advantage is that the balling-up time is short, easy to operate, its have the disadvantage circularity,
Sphericity is poor, and product percent of pass is low.
Content of the invention
In view of this, the embodiment of the present invention provides a kind of preparation method of ceramsite sand blastocyte, and main purpose is that solution is existing
In technology using automatic granulator carry out ceramsite sand granulation exist circularity, sphericity poor, the low problem of product percent of pass.The present invention
Ceramsite sand also prepared by offer the method.
In order to above-mentioned technical problem is solved, following technical scheme is present invention employs：
On the one hand, a kind of preparation method of ceramsite sand blastocyte is embodiments provided, and methods described includes：
Step 1, is puddled to granulating raw material using comminutor, is then mixed granulating raw material with water, obtains compound；
Step 2, compound balling-up step 1 obtained using comminutor, the balling-up at least include two stages, afterwards one
The rotor speed in stage is less than the rotor speed of previous stage adjacent thereto；
Step 3, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot.
The preparation method of ceramsite sand blastocyte as above, further, step 2, the compound balling-up obtained by step 1,
The balling-up includes two stages:
Stage 1, rotor speed are maximum speed, 150～200s of run time；
Stage 2, rotor speed are 40～55%, 500～600s of run time of maximum speed.
The preparation method of ceramsite sand blastocyte as above, further, step 2, the compound balling-up obtained by step 1,
The balling-up includes three phases:
Stage 1, rotor speed are maximum speed, 90～140s of run time；
Stage 2, rotor speed are 70～80%, 290～400s of run time of maximum speed；
Stage 3, rotor speed are 40～55%, 100～180s of run time of maximum speed.
The preparation method of ceramsite sand blastocyte as above, further, step 1 puddle process before, using ball milling
Machine is ground to granulating raw material and is homogenized in advance.Preferably, the milling time of step 1 is 30 minutes.
The preparation method of ceramsite sand blastocyte as above, further, in step 1, water with the weight ratio of granulating raw material is
135～155:1000.The process of ball is formed in the presence of comminutor, if moisture is too low, a lot of powders can be made to obtain
Moisture content is formed and is asked, if moisture is excessive, mixed powder can be made to become mud.
The preparation method of ceramsite sand blastocyte as above, further, fineness >=600 mesh of the granulating raw material.
The preparation method of ceramsite sand blastocyte as above, further, the comminutor is produced for Ai Lixu company of Germany
Model 90L/4/2D-11 comminutor.
Ceramsite sand according to prepared by the as above preparation method of any one ceramsite sand blastocyte.
Compared with prior art, the beneficial effects of the present invention is：
Divide water resource equally when water is disposably added to not all powder in powder, but more than acquisition moisture content one is little
Part water is initially formed microparticle, and remaining powder is still present with the state of powder, and microparticle is constantly overturn in the presence of rotor,
Microparticle obtains powder and makes oneself constantly to grow up, and powder ultimately forms ceramsite sand also with constantly being gradually decreased by absorption.
The number of times that microparticle is reversed within the unit interval the more microparticle length faster, if growing up with microparticle
Spinner velocity is still very high, and one side particle can affect circularity and sphericity because of increasing too fast, on the other hand because particle increases
Grow too fast and make particle size excessive, cause single pot of qualification rate to reduce.
The balling-up of side of the present invention includes at least two successive stages, and the rotor speed in each stage is gradually lowered, it is to avoid
The circularity caused as rotor speed is too fast in microparticle growth process is poor with sphericity, the problem that single pot of qualification rate reduces.
Specific embodiment
The present invention is described in further detail with reference to specific embodiment, but not as a limitation of the invention.
In following examples, used granulating raw material fineness is reached for 600 mesh, and its formula is：By weight ratio, including light
Burn bauxite (64%), light-burned clay (32%), modified clay (3%), bonding agent (1%).
Ceramsite sand criterion of acceptability：Granulation specification is 20/40 single specification, and qualified specification is the particle between -18/+30,
Circularity >=0.8, sphericity >=0.8.
The comminutor for being used is the comminutor of model 90L/4/2D-11 of German Ai Lixu company production.
Embodiment 1
The preparation method of ceramsite sand blastocyte, comprises the following steps：
Step 1, is puddled to 5kg granulating raw material using comminutor, comminutor rotor speed 100%, continues 1200s；
Then granulating raw material is mixed with water, water is 138 with the weight ratio of granulating raw material:1000, comminutor rotor speed is set as most
High rotating speed, i.e. rotating speed are 100%, continue 20s.
Step 2, using comminutor to granulating raw material balling-up, the balling-up includes 2 stages,
Stage 1, rotor speed are maximum speed, run time 200s；
Stage 2, rotor speed are the 55% of maximum speed, run time 500s.
Step 3, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot, comminutor rotor speed 50%, continues 30s.
Single-deck adds up to run time 1950s.
Embodiment 2
The preparation method of ceramsite sand blastocyte, comprises the following steps：
Step 1, is puddled to 5kg granulating raw material using comminutor, comminutor rotor speed 100%, continues 1200s；
Then granulating raw material is mixed with water, water is 145 with the weight ratio of granulating raw material:1000, comminutor rotor speed 100%, hold
Continuous 20s.
Step 2, using comminutor to granulating raw material balling-up, the balling-up includes 2 stages,
Stage 1, rotor speed are maximum speed, run time 180s；
Stage 2, rotor speed are the 50% of maximum speed, run time 550s.
Step 3, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot, comminutor rotor speed 50%, continues 30s.
Single-deck adds up to run time 1980s.
Embodiment 3
The preparation method of ceramsite sand blastocyte, comprises the following steps：
Step 1, is puddled to 5kg granulating raw material using comminutor, comminutor rotor speed 100%, continues 1200s；
Then granulating raw material is mixed with water, water is 155 with the weight ratio of granulating raw material:1000, comminutor rotor speed 100%, hold
Continuous 20s.
Step 2, using comminutor to granulating raw material balling-up, the balling-up includes 2 stages,
Stage 1, rotor speed are maximum speed, run time 150s；
Stage 2, rotor speed are the 40% of maximum speed, run time 600s.
Step 3, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot, comminutor rotor speed 50%, continues 30s.
Single-deck adds up to run time 2000s.
Embodiment 4
The preparation method of ceramsite sand blastocyte, comprises the following steps：
Step 1, is puddled to 5kg granulating raw material using comminutor, comminutor rotor speed 100%, continues 1200s；
Then granulating raw material is mixed with water, water is 138 with the weight ratio of granulating raw material:1000, comminutor rotor speed 100%, hold
Continuous 20s.
Step 2, using comminutor to granulating raw material balling-up, the balling-up rotor speed is maximum speed, run time
400s；
Step 3, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot, comminutor rotor speed 50%, continues 30s.
Single-deck adds up to run time 1650s.
Embodiment 5
The preparation method of ceramsite sand blastocyte, comprises the following steps：
Step 1, is ground to granulating raw material using ball mill and is homogenized in advance, and milling time is 30 minutes.
Step 2, is puddled to 5kg granulating raw material using comminutor, comminutor rotor speed 100%, continues 20s；So
Afterwards granulating raw material is mixed with water, water is 138 with the weight ratio of granulating raw material:1000, comminutor rotor speed 100%, continue
20s.
Step 3, using comminutor to granulating raw material balling-up, the balling-up includes 2 stages,
Stage 1, rotor speed are maximum speed, run time 140s；
Stage 2, rotor speed are the 75% of maximum speed, run time 320s；
Stage 3, rotor speed are the 55% of maximum speed, run time 100s.
Step 4, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot, comminutor rotor speed 50%, continues 30s.
Single-deck adds up to run time 630s.Due to before granulating raw material is loaded comminutor, former to granulation using ball mill
Material is ground and is homogenized in advance, the both perfect homogenizing of raw material, increased the fine grinding time again, to improving the circle of ceramsite sand semi-finished product
Degree, sphericity are helpful, additionally shorten single-deck granulation time (can grind next disk granulating raw material when granulating this disk), subtract
The loss of few automatic granulating machine equipment.
Embodiment 6
The preparation method of ceramsite sand blastocyte, comprises the following steps：
Step 1, is ground to granulating raw material using ball mill and is homogenized in advance, and milling time is 30 minutes.
Step 2, is puddled to 5kg granulating raw material using comminutor, comminutor rotor speed 100%, continues 20s；So
Afterwards granulating raw material is mixed with water, water is 145 with the weight ratio of granulating raw material:1000, comminutor rotor speed 100%, continue
20s.
Step 3, using comminutor to granulating raw material balling-up, the balling-up includes 2 stages,
Stage 1, rotor speed are maximum speed, run time 120s；
Stage 2, rotor speed are the 75% of maximum speed, run time 300s；
Stage 3, rotor speed are the 50% of maximum speed, run time 120s.
Step 4, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot, comminutor rotor speed 50%, continues 30s.
Single-deck adds up to run time 610s.
Embodiment 7
The preparation method of ceramsite sand blastocyte, comprises the following steps：
Step 1, is ground to granulating raw material using ball mill and is homogenized in advance, and milling time is 30 minutes.
Step 2, is puddled to 5kg granulating raw material using comminutor, comminutor rotor speed 100%, continues 20s；So
Afterwards granulating raw material is mixed with water, water is 155 with the weight ratio of granulating raw material:1000, comminutor rotor speed 100%, continue
20s.
Step 3, using comminutor to granulating raw material balling-up, the balling-up includes 2 stages,
Stage 1, rotor speed are maximum speed, run time 100s；
Stage 2, rotor speed are the 75% of maximum speed, run time 330s；
Stage 3, rotor speed are the 50% of maximum speed, run time 150s.
Step 4, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot, comminutor rotor speed 50%, continues 30s.
Single-deck adds up to run time 650s.
Embodiment 8
The preparation method of ceramsite sand blastocyte, comprises the following steps：
Step 1, is ground to granulating raw material using ball mill and is homogenized in advance, and milling time is 30 minutes.
Step 2, is puddled to 5kg granulating raw material using comminutor, comminutor rotor speed 100%, continues 20s；So
Afterwards granulating raw material is mixed with water, water is 155 with the weight ratio of granulating raw material:1000, comminutor rotor speed 100%, continue
20s.
Step 3, using comminutor to granulating raw material balling-up, the balling-up includes 2 stages,
Stage 1, rotor speed are maximum speed, run time 90s；
Stage 2, rotor speed are the 70% of maximum speed, run time 400s；
Stage 3, rotor speed are the 50% of maximum speed, run time 120s.
Step 4, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot, comminutor rotor speed 50%, continues 30s.
Single-deck adds up to run time 680s.
Embodiment 9
The preparation method of ceramsite sand blastocyte, comprises the following steps：
Step 1, is ground to granulating raw material using ball mill and is homogenized in advance, and milling time is 30 minutes.
Step 2, is puddled to 5kg granulating raw material using comminutor, comminutor rotor speed 100%, continues 20s；So
Afterwards granulating raw material is mixed with water, water is 155 with the weight ratio of granulating raw material:1000, comminutor rotor speed 100%, continue
20s.
Step 3, using comminutor to granulating raw material balling-up, the balling-up includes 2 stages,
Stage 1, rotor speed are maximum speed, run time 100s；
Stage 2, rotor speed are the 80% of maximum speed, run time 290s；
Stage 3, rotor speed are the 40% of maximum speed, run time 180s.
Step 4, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot, comminutor rotor speed 50%, continues 30s.
Single-deck adds up to run time 640s.
Embodiment 10
The preparation method of ceramsite sand blastocyte, comprises the following steps：
Step 1, is ground to granulating raw material using ball mill and is homogenized in advance, and milling time is 30 minutes.
Step 2, is puddled to 5kg granulating raw material using comminutor, comminutor rotor speed 100%, continues 20s；So
Afterwards granulating raw material is mixed with water, water is 138 with the weight ratio of granulating raw material:1000, comminutor rotor speed 100%, continue
20s.
Step 3, using comminutor to granulating raw material balling-up, the balling-up rotor speed is maximum speed, run time
400s；
Step 4, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot, comminutor rotor speed 50%, continues 30s.
Single-deck adds up to run time 470s.
Ceramsite sand obtained by embodiment 1-10 is detected, testing result such as following table：
| Embodiment | Qualification rate (%) | Circularity | Sphericity |
| - | - | Not less than 0.8 | Not less than 0.8 |
| 1 | 60 | 0.78 | 0.80 |
| 2 | 52 | 0.79 | 0.75 |
| 3 | 54 | 0.8 | 0.74 |
| 4 | 43 | 0.79 | 0.75 |
| 5 | 60 | 0.81 | 0.85 |
| 6 | 59 | 0.83 | 0.83 |
| 7 | 60 | 0.84 | 0.82 |
| 8 | 59 | 0.85 | 0.82 |
| 9 | 61 | 0.82 | 0.87 |
| 10 | 46 | 0.76 | 0.78 |
By the data of embodiment and upper table it can be shown that there is product percent of pass using ceramsite sand preparation method of the present invention
Height, the good advantage of circularity, sphericity.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can be made respectively to the present invention in the essence and protection domain of the present invention
Modification or equivalent is planted, this modification or equivalent also should be regarded as being within the scope of the present invention.
Claims (6)
1. a kind of preparation method of ceramsite sand blastocyte, it is characterised in that methods described includes：
Step 1, is puddled to granulating raw material using comminutor, is then disposably added water in the raw material after puddling, is obtained
Compound, fineness >=600 mesh of described granulating raw material, water are 135～155 with the weight ratio of granulating raw material:1000；
Step 2, carries out balling-up to the compound, and the balling-up at least includes two stages, and the rotor speed of the latter half is low
In the rotor speed of previous stage adjacent thereto, when balling-up is two stages, the rotor speed of first stage turns for highest
Speed, 150～200s of run time, the rotor speed of second stage are the 40～55% of maximum speed, run time 500～
600s；
Step 3, after completing balling-up, the ceramsite sand of acquisition is taken the dish out of the pot.
2. the preparation method of ceramsite sand blastocyte according to claim 1, it is characterised in that the balling-up includes three ranks
Section:
Stage 1, rotor speed are maximum speed, 90～140s of run time；
Stage 2, rotor speed are 70～80%, 290～400s of run time of maximum speed；
Stage 3, rotor speed are 40～55%, 100～180s of run time of maximum speed.
3. the preparation method of the ceramsite sand blastocyte according to any one of claim 1-2, it is characterised in that in the step 1
Before, also include to be ground raw material using ball mill and be homogenized in advance.
4. the preparation method of ceramsite sand blastocyte according to claim 3, it is characterised in that the milling time is 30min.
5. the preparation method of the ceramsite sand blastocyte according to any one of claim 1-2, it is characterised in that the comminutor is
The comminutor of model 90L/4/2D-11 of German Ai Lixu company production.
6. a kind of ceramsite sand, it is characterised in that the preparation method system of the ceramsite sand blastocyte according to any one of claim 1-5
Become.
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| CA1112026A (en) * | 1978-04-27 | 1981-11-10 | John S. Nixon | Rotary pan pelletizers |
| US4413970A (en) * | 1981-02-27 | 1983-11-08 | Owens-Corning Fiberglas Corporation | Rotary scrapers |
| CN100439289C (en) * | 2006-06-08 | 2008-12-03 | 汉中秦元新材料有限公司 | Method for producing sintering plate-like corundum by ultra-high temperature shaft kiln |
| CN101239330B (en) * | 2007-02-09 | 2010-10-27 | 中国石油化工股份有限公司 | Method for preparing micro-spherical catalyst carrier |
| CN101342470B (en) * | 2008-08-19 | 2010-10-13 | 毛训亮 | Porcelain granule sand granulator |
| CN102360172B (en) * | 2011-10-21 | 2013-07-10 | 珠海思美亚碳粉有限公司 | Colorful ceramic powdered ink and preparation method thereof |
| CN203061147U (en) * | 2012-11-05 | 2013-07-17 | 鹤壁市通用机械电气有限公司 | Ceramsite sand granulator |
| CN103846049A (en) * | 2012-12-03 | 2014-06-11 | 上海张江中药现代制剂技术工程研究中心 | Spherical particle parent nucleus automatic preparation machine |
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