CN106426546A - Integrated continuous production type clay dissociation-modification-drying method - Google Patents
Integrated continuous production type clay dissociation-modification-drying method Download PDFInfo
- Publication number
- CN106426546A CN106426546A CN201610815914.2A CN201610815914A CN106426546A CN 106426546 A CN106426546 A CN 106426546A CN 201610815914 A CN201610815914 A CN 201610815914A CN 106426546 A CN106426546 A CN 106426546A
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- China
- Prior art keywords
- clay
- modification
- dissociation
- rotating twin
- solvent
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C1/00—Apparatus or methods for obtaining or processing clay
- B28C1/10—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants
- B28C1/14—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom
- B28C1/18—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom for comminuting clay lumps
- B28C1/182—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom for comminuting clay lumps by forcing the clay through screens or slots, e.g. using screw or rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C1/00—Apparatus or methods for obtaining or processing clay
- B28C1/10—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants
Abstract
The invention discloses an integrated continuous production type clay dissociation-modification-drying method. The method comprises the following steps: fully mixing and soaking clay in a dispersion solvent; uniformly adding the pretreated clay and a modifier in a meshed co-rotating twin screw extruder, adjusting the extrusion parameter, and utilizing strong shearing force of the meshed co-rotating twin screw extruder at a meshed position to loosen and tear clay aggregate; and further drying the extruded clay to obtain micro-nano clay powder in the soft gathering state, and recycling the solvent at the same time. According to the invention, the strong shearing force of the meshed co-rotating twin screw extruder at the meshed position is utilized to loosen and tear the clay aggregate, so that the requirements for equipment are low, the process is easy to control, environmental friendliness is realized, the energy consumption and the cost are low, and large-scale continuous environmental-friendly production can be realized.
Description
Technical field
The present invention relates to clay dissociating method is and in particular to the clay dissociation-modification-that can be continuously produced is drying integrated
Method.
Background technology
Clay is natural micro Nano material, mainly forms fine and close aggregate with hydrogen bond and physical force between construction unit.
In recent years, from traditional pure dry or wet dissociation clay, gradually develop the dissociation clay that wet-dry change technique blends
New technology, such as extruding-freeze thawing, freeze-mill and roller is extruded the-dry-and-wet combined technology such as high-pressure homogeneous, can preferably dissociate glutinous
Soil, realizes micro-nanoization of clay.But, freeze thawing, the process such as high-pressure homogeneous still suffer from the defects such as high energy consumption and secondary agglomeration, and
Wastewater flow rate is big, or needs using a large amount of organic solvents it is difficult to realize the green large-scale production of high performance-price ratio.
Wang Fuping once devised a kind of double helix pugging extruder to be disperseed for bentonite.This technique is stirred using double helix band
Mix and be fed forward material, its peptizaiton is mainly positioned against kneading the damping sheet introducing in chamber.When material advances to damping sheet
When, because area of passage reduces, material here forms vortex, thus mutually extruding and shearing reach dispersion mesh between material
's.Because material fltting speed is limited, determine that vortex degree of scatter will not be too high, and effectively do not cut between double helix band
Shear force, therefore mass action power weaker it is difficult to reach micro-nano dissolve from.
Content of the invention
It is an object of the invention to：A kind of simple, efficient, inexpensive clay that can be continuously produced is provided to dissociate-change
Property-drying integrated method, on the basis of keeping the original pattern of clay construction unit, realize clay micro-nanoization, overcome existing
Have the shortcomings that technology energy consumption is big, high cost, efficiency are low, not environmentally.
The technical solution of the present invention is the clay dissociation-modification-drying integrated method bag that this can be continuously produced
Include following steps：
（1）Clay pre-processes：Clay is sufficiently mixed in dispersion solvent infiltration；
（2）Extrusion process：Pretreated clay and modifying agent are uniformly added in meshing co rotating twin screw extrusion, adjustment is squeezed
Go out parameter, the Strong shear power producing in the position of engagement using intermeshing co-rotating twin-screw is come bulking, tear clay aggregation；
（3）It is dried：Clay after extrusion process is further dried, obtains the micro-nanoization clay powder of soft-agglomerated state, simultaneously
Reclaim solvent for use.
Wherein, described clay is the fibrous type clay based on attapulgite and sepiolite, and based on montmorillonite and vermiculite
Sheet clay.
Wherein, described solvent is in water, or ethanol, isopropanol, dimethyl sulfoxide, DMF organic solvent
One kind, solvent for use is 1 ~ 3 times of clay quality.
Wherein, described modifying agent is quaternary ammonium salt, silane coupler or stearic acid, and modification consumption is recessed soil after pretreatment
The 2-4% of quality.
Wherein, the extrusion condition of described meshing co rotating twin screw extrusion is：Extrusion temperature can between 50 ~ 200 DEG C
Control, draw ratio is adjustable between 32 ~ 60.
Wherein, baking temperature is 80-160 DEG C.
It is an advantage of the invention that：
1st, the present invention adopts meshing co rotating twin screw extrusion, cutting between the twin-screw that its dissociation power engages for large area
Consult power, this active force not only has preferable fluffy efficiency, and to the solvation in solvent deep invasion and extrusion process
Effect plays（Protection crystal structure, lifting dissociation efficiency）There is very good facilitation.
2nd, in working only need to by the parameter such as adjusting screw rod rotating speed and draw ratio so that it may finely regulating dissociates intensity.
3rd, the method is simple to equipment requirement, and process is easily controllable, and energy consumption is little, low cost, can carry out scale continous way
Produce.
4th, the recyclable reuse of solvent used in the method.
5th, the Strong shear power being produced in the position of engagement using intermeshing co-rotating twin-screw is come bulking, tear clay aggregation,
It is effectively increased the effect between modifying agent and clay simultaneously；On the one hand, meshing co rotating twin screw extrusion has to high-viscosity clay
There is excellent feeding and move conveying capacity, meshing co rotating twin screw extrusion should to the shear rate of clay in region of engagement and shearing
Power is larger, obtains preferable dissociation effect, and because boundary speed is contrary in intermeshing co-rotating twin-screw region of engagement, boundary of only keeping to the side
Sub-fraction material can pass through radial clearance, and turn back in most of material original place of centre, produces larger capacity of returns, greatly
Improve distributed rendering ability；On the other hand, the adhesion intervening between effective weakening structure unit of saturated solvent, it is to avoid strong
The destruction of the clay crystal structure under power effect.
Specific embodiment
Further illustrate technical scheme with reference to specific embodiment, it is right that these embodiments are not to be construed as
The restriction of technical scheme.
Embodiment 1：Connect according to following steps and produce modified micro-nanoization recessed soil powder
（1）Clay pre-processes：Recessed for 100 purposes soil is sufficiently mixed with isopropanol and soaks；Wherein, isopropanol is recessed soil property amount
1 times；
（2）Extrusion process：Select meshing co rotating twin screw extrusion, adjustment twin-screw draw ratio is 1:32, control extrusion temperature
For 50 DEG C；The modifying agent quaternary ammonium salt of pretreated recessed soil and its quality 2% is at the uniform velocity added mixing extrusion；
（3）It is dried：By the recessed soil after extrusion process in 80 DEG C of heat drying desolventizings, isopropanol used is reclaimed simultaneously
Recycling, obtains final product the modified micro-nanoization recessed soil powder of the cetyl trimethylammonium bromide of soft-agglomerated state.
Embodiment 2：Connect according to following steps and produce modified micro-nanoization recessed soil powder
（1）Clay pre-processes：The sepiolite of 60 mesh is fully soaked 2 hours in water, the consumption of water is the 2 of sepiolite quality
Times；
（2）Extrusion process：Select meshing co rotating twin screw extrusion, adjustment twin-screw draw ratio is 1:46, control extrusion temperature
For 125 DEG C, the modifying agent silane coupler of pretreated sepiolite and its quality 3% is at the uniform velocity added mixing extrusion；
（3）It is dried：Sepiolite after extrusion process is dehydrated in 120 DEG C of heat dryings, obtains the micro-nanoization sea of soft-agglomerated state
Afrodite clay powder.
Embodiment 3：Connect according to following steps and produce modified micro-nanoization recessed soil powder
（1）Clay pre-processes：Recessed for the dolomite type of 200 mesh soil is fully soaked in DMF, its consumption is
3 times of clay quality；
（2）Extrusion process：Select meshing co rotating twin screw extrusion, adjustment twin-screw draw ratio is 1:60, control extrusion temperature
For 200 DEG C；The modifying agent stearic acid of pretreated dolomite type and its quality 4% is at the uniform velocity added mixing extrusion；
（3）It is dried：By recessed for the dolomite type after extrusion process soil in 160 DEG C of heat drying desolventizings, obtain final product soft-agglomerated state
Modified micro-nanoization dolomite type recessed soil powder, and DMF used is recycled and reused.
Claims (6)
1. the clay dissociation-modification-drying integrated method that can be continuously produced, is characterized in that this production method includes following step
Suddenly：
（1）Clay pre-processes：Clay is sufficiently mixed in dispersion solvent infiltration；
（2）Extrusion process：Pretreated clay and modifying agent are uniformly added in meshing co rotating twin screw extrusion, adjustment is squeezed
Go out parameter, the Strong shear power producing in the position of engagement using intermeshing co-rotating twin-screw is come bulking, tear clay aggregation；
（3）It is dried：Clay after extrusion process is further dried, obtains the micro-nanoization clay powder of soft-agglomerated state, simultaneously
Reclaim solvent for use.
2. the clay dissociation-modification-drying integrated method that can be continuously produced according to claim 1, is characterized in that：
Described clay is the fibrous type clay based on attapulgite and sepiolite, and the sheet clay based on montmorillonite and vermiculite.
3. the clay dissociation-modification-drying integrated method that can be continuously produced according to claim 1, is characterized in that：
Described solvent is water, or one of ethanol, isopropanol, dimethyl sulfoxide, DMF organic solvent, solvent for use
It is 1 ~ 3 times of clay quality.
4. the clay dissociation-modification-drying integrated method that can be continuously produced according to claim 1, is characterized in that：
Described modifying agent is quaternary ammonium salt, silane coupler or stearic acid, and modification consumption is the 2-4% of recessed soil property amount after pretreatment.
5. the clay dissociation-modification-drying integrated method that can be continuously produced according to claim 1, is characterized in that：
Described intermeshing co-rotating twin-screw squeeze extrusion condition be：Extrusion temperature is controlled between 50 ~ 200 DEG C, and draw ratio is 32 ~ 60
Between adjustable.
6. the clay dissociation-modification-drying integrated method that can be continuously produced according to claim 1, is characterized in that：
Baking temperature is 80-160 DEG C.
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| CN201610815914.2A CN106426546A (en) | 2016-09-12 | 2016-09-12 | Integrated continuous production type clay dissociation-modification-drying method |
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| CN201610815914.2A CN106426546A (en) | 2016-09-12 | 2016-09-12 | Integrated continuous production type clay dissociation-modification-drying method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126928A (en) * | 2017-07-06 | 2017-09-05 | 淮阴工学院 | A kind of adsorbent that two-dimensional metallic organic backbone separating low concentration methane is combined based on recessed native nano stick crystal and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101007636A (en) * | 2007-01-13 | 2007-08-01 | 淮阴工学院 | Process for preparation of delta-layed crystalline sodium disilicate using attapulgite |
| CN101381478A (en) * | 2008-10-28 | 2009-03-11 | 南京亚东奥土矿业有限公司 | Inorganic high molecular plastics and rubber toughening agent |
| CN101898765A (en) * | 2010-07-30 | 2010-12-01 | 淮阴工学院 | Method for effectively dispersing depolymerization and preventing secondary agglomeration of attapulgite clay crystal bundle |
| WO2010147781A1 (en) * | 2009-06-16 | 2010-12-23 | Amcol International Corporation | High shear method for manufacturing a synthetic smectite mineral |
| CN102105287A (en) * | 2008-07-22 | 2011-06-22 | 信一化学工业株式会社 | Continuous extruder |
| CN102649573A (en) * | 2011-02-24 | 2012-08-29 | 中国科学院兰州化学物理研究所 | Preparation method for improving aggregation of attapulgite clay nanometer material |
| CN104086159A (en) * | 2014-07-30 | 2014-10-08 | 新密市环新生活垃圾处理有限公司 | Biogas slurry sintered brick and preparation method thereof |
| CN104096520A (en) * | 2014-07-15 | 2014-10-15 | 淮阴工学院 | Preparation method of fibrous inorganic mineral gel |
| CN204211495U (en) * | 2014-08-28 | 2015-03-18 | 杭州协红科技咨询有限公司 | A kind of chemical industry process former of bentonite sodium metallization processes |
| CN105645923A (en) * | 2015-12-24 | 2016-06-08 | 成都新柯力化工科技有限公司 | Filamentous clay material for 3D printing and preparation method thereof |
-
2016
- 2016-09-12 CN CN201610815914.2A patent/CN106426546A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101007636A (en) * | 2007-01-13 | 2007-08-01 | 淮阴工学院 | Process for preparation of delta-layed crystalline sodium disilicate using attapulgite |
| CN102105287A (en) * | 2008-07-22 | 2011-06-22 | 信一化学工业株式会社 | Continuous extruder |
| CN101381478A (en) * | 2008-10-28 | 2009-03-11 | 南京亚东奥土矿业有限公司 | Inorganic high molecular plastics and rubber toughening agent |
| WO2010147781A1 (en) * | 2009-06-16 | 2010-12-23 | Amcol International Corporation | High shear method for manufacturing a synthetic smectite mineral |
| CN101898765A (en) * | 2010-07-30 | 2010-12-01 | 淮阴工学院 | Method for effectively dispersing depolymerization and preventing secondary agglomeration of attapulgite clay crystal bundle |
| CN102649573A (en) * | 2011-02-24 | 2012-08-29 | 中国科学院兰州化学物理研究所 | Preparation method for improving aggregation of attapulgite clay nanometer material |
| CN104096520A (en) * | 2014-07-15 | 2014-10-15 | 淮阴工学院 | Preparation method of fibrous inorganic mineral gel |
| CN104086159A (en) * | 2014-07-30 | 2014-10-08 | 新密市环新生活垃圾处理有限公司 | Biogas slurry sintered brick and preparation method thereof |
| CN204211495U (en) * | 2014-08-28 | 2015-03-18 | 杭州协红科技咨询有限公司 | A kind of chemical industry process former of bentonite sodium metallization processes |
| CN105645923A (en) * | 2015-12-24 | 2016-06-08 | 成都新柯力化工科技有限公司 | Filamentous clay material for 3D printing and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126928A (en) * | 2017-07-06 | 2017-09-05 | 淮阴工学院 | A kind of adsorbent that two-dimensional metallic organic backbone separating low concentration methane is combined based on recessed native nano stick crystal and preparation method thereof |
| CN107126928B (en) * | 2017-07-06 | 2019-08-06 | 淮阴工学院 | A kind of adsorbent and preparation method thereof based on the compound two-dimensional metallic organic backbone separating low concentration methane of recessed native nano stick crystal |
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Application publication date: 20170222 |