CN107841186A - The preparation facilities and preparation method and applications of improved silica - Google Patents
The preparation facilities and preparation method and applications of improved silica Download PDFInfo
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- CN107841186A CN107841186A CN201711105697.9A CN201711105697A CN107841186A CN 107841186 A CN107841186 A CN 107841186A CN 201711105697 A CN201711105697 A CN 201711105697A CN 107841186 A CN107841186 A CN 107841186A
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C11/00—Surface finishing of leather
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C11/00—Surface finishing of leather
- C14C11/003—Surface finishing of leather using macromolecular compounds
- C14C11/006—Surface finishing of leather using macromolecular compounds using polymeric products of isocyanates (or isothiocyanates) with compounds having active hydrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Silicon Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of preparation method of improved silica, silane coupler solution is added in SiO 2 powder base material, cool again after heating removes solvent and improved silica is made, wherein, silane coupler is aminopropyl triethoxysilane or glycerine ether oxygen propyl trimethoxy silicane, and its addition is the 0.5~1% of SiO 2 powder substrate mass.The silane coupler is used by acetone, ethanol, water quality ratio as 1：1~3：The mass ratio of the mixed solvent dissolving of 0.2~0.8 mixing, the silane coupler and mixed solvent is 4~6：1.And silane coupler solution is to be added in a manner of at the uniform velocity disperseing in SiO 2 powder base material delivery air, improved silica epigranular, pore structure stabilization, the purity being prepared are high, when delustering agent as leather and fur products uses, its flatting efficiency improves 5%~20%, and extinction effect is excellent.It is simple in construction the invention also discloses the preparation facilities of improved silica, it is easy to operate.
Description
Technical field
The present invention relates to paint field, in particular it relates to a kind of preparation facilities of improved silica and preparation method and
Its application as leather delustering agent.
Background technology
As requirement of the people for dress ornament species is more and more diversified, and pursuit of the people to natural prevailing custom, leather
The demand of product is also more and more extensive.Either real leather products or dermatine product, it is required for being handled on its surface,
To obtain one layer of coating as diaphragm, reaches the purpose of antipollution, anti-folding line and waterproof and breathable, while obtain special vision effect
The texture of fruit and some feels.
Leather surface treatment agent needed for leather and fur products production process, the adjustment of its glossiness, it can be realized by delustering agent.
Leather flatting agent can be used for reduce leather skin gloss, prevent due to resin bed excessively light caused by plastic sense, simultaneously also
The disability of leather surface can be modified, the leather after covering with paint is had outside soft, natural, the graceful vision of corium
See.Silica can make leather surface reach good photoextinction and will not reduce its surface vividness and richness,
With feeling thoroughly, feel waits by force premium properties and is widely used.
As people are for leather and fur products demand is more and more extensive and sectionalization, the surface treatment for leather and fur products also with
Change, there is miscellaneous surface conditioning agent, meanwhile, the demand for silica dioxide delustring agent that is corresponding and coming also is got over
Carrying out more sectionalization, feel exquisiteness degree, mist degree performance are uniform, pursue preferable color reducibility, color developing, transparency etc.,
Simple silica dioxide delustring agent can not meet the needs of more and more detailed-oriented, in order to obtain more excellent use effect
For fruit, it is necessary to carry out surface modification treatment to silica, the surface treatment mode of commercially available usual products is organic Lasaxing Oilfield, but
Such a method can not meet all customer demands.
As can be seen here, above-mentioned existing silica has still suffered from inconvenience and defect as leather flatting agent, and urgently adds
Further to improve.Preparation method and preparation facilities and its application of a kind of new improved silica are how founded, makes it
The improved silica being prepared flatting efficiency when as leather with delustering agent has a distinct increment, and turning into current industry pole needs
Improved target.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of preparation of easy, the simple to operate improved silica of method
Method, the modifying agent that it is prepared flatting efficiency when as leather with delustering agent is set to have a distinct increment, it is existing so as to overcome
Deficiency of the silica as delustering agent.
In order to solve the above technical problems, the present invention provides a kind of preparation method of improved silica, the preparation method
For：Silane coupler solution is added in SiO 2 powder base material, then rewinding is made modified two after heating removes solvent
Silica, wherein, the addition quality of the silane coupler is the 0.5~1% of the SiO 2 powder substrate mass.
As a modification of the present invention, the silane coupler is aminopropyl triethoxysilane or glycerine ether oxygen propyl
Trimethoxy silane,
The silane coupler solution is to use by acetone, ethanol, water using mass ratio as 1：1~3：0.2~0.8 mixing
Mixed solvent dissolves the silane coupler and formed；
The mass ratio of the silane coupler and the mixed solvent is 4~6：1.
Further improve, the SiO 2 powder base material is white carbon, macro porous silica gel or aerosil, its water
Content is divided to be less than or equal to 4.5%.
Further improve, the silane coupler solution is added to the SiO 2 powder by way of at the uniform velocity disperseing
In base material delivery air, the inlet amount of SiO 2 powder base material is described in the SiO 2 powder base material delivery air
90~150kg/h.
Further improve, the SiO 2 powder base material delivery air is by the way that SiO 2 powder base material is passed through into gas
What stream was just uniformly conveyed after crushing.
Further to improve, described the step of removing solvent, is：The silicon dioxide powder of the silane coupler solution will be added
Last air-flow flows through the heater that temperature is stepped up, and the entrance point temperature of the heater is 80~100 DEG C, port of export temperature
Spend for 230~250 DEG C, realize the evaporative removal to solvent.
The present invention also provides a kind of improved silica conduct being prepared by above-mentioned improved silica preparation method
The application of leather delustering agent.
The present invention also provides a kind of preparation facilities of improved silica, including is sequentially connected the air accumulator of setting, air-flow
Grinding chamber, heater and material collecting device,
The side wall middle and lower part of the Gas grinding room offers SiO 2 powder base material charging aperture, the air accumulator it is defeated
The gas outlet of air pipe is arranged on the lower section of the SiO 2 powder base material charging aperture, and the top of the Gas grinding room is fixed
There is a rotatable grading wheel, dust outlet is offered in the Gas grinding room side wall below the grading wheel；
Liquid addition mechanism is connected with connecting line between the dust outlet and heater；
The heater, for add the heating of the SiO 2 powder air-flow of liquid, realizing the steaming of solvent in liquid
Hair；
The material collecting device, for receiving the improved silica powder air-flow from heater discharge, and to it
Cooling, the material collecting device are also connected with air-introduced machine, and the air-introduced machine is used to provide for the SiO 2 powder air current flow
Power.
Further improve, the liquid addition mechanism includes liquid addition tank and mass flowmenter, the liquid addition tank
It is connected to by connecting branch on the connecting line between the dust outlet and heater, the mass flowmenter sets institute
State on connecting branch.
Further improve, the material collecting device includes four receiving warehouses being sequentially connected in series, wherein the first receiving warehouse and second
Connected by rotary discharging valve between receiving warehouse, connected between the 3rd receiving warehouse and the 4th receiving warehouse by rotary discharging valve, the
The bottom of two receiving warehouses is connected with the top of the 3rd receiving warehouse by connecting tube, and first receiving warehouse and the 3rd receiving warehouse
Upper end is respectively connected with air-introduced machine, and the bottom of the 4th receiving warehouse is discharging opening.
After such design, the present invention at least has advantages below：
1. the preparation method of improved silica of the present invention in the delivery air of SiO 2 powder base material by adding
Silane coupler solution, and the mass ratio of silane coupler and SiO 2 powder base material is controlled, and the suitable solvent of selection
The silane coupler is dissolved, solvent is also removed using progressively temperature-rising method, finally improved silica is cooled to obtain.This
It is high to invent the improved silica epigranular being prepared, pore structure stabilization, purity.
2nd, improved silica made from preparation method of the present invention can be used as the delustering agent use of leather and fur products, its delustring effect
Fruit improves 5%~20% than the SiO 2 powder of non-modified processing, and flatting efficiency is excellent.
3rd, preparation facilities of the present invention is improved in existing Ultrafine Jet Milling system-based, adding liquid charger
Structure, heating arrangements, realize in preparation method that to be directly added into silane coupler in the delivery air of SiO 2 powder base material molten
Liquid step, equipment are simple, easy to operate.It is further to reduce finished powder temperature also by setting four receiving warehouses, beneficial into
The collection of product powder.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, below
With reference to accompanying drawing, the present invention is described in further detail with embodiment.
Fig. 1 is the structural representation of improved silica preparation facilities of the present invention.
Wherein, 1, air accumulator, 2, air delivering pipeline, 3, jet, 4, Gas grinding room, 5, charging aperture, 6, classification motor, 7,
Grading wheel, 8, powder conduit road, 9, heater, 10, receiving warehouse, 11, rotary discharging valve, 12, air inducing pipeline, 13, air inducing
Machine, 15, material connecting tube, 16, mass flowmenter, 17, liquid addition tank, 18 discharging openings.
Fig. 2 is the design sketch that improved silica of the present invention is used for leather surface afterwards before modified.
Embodiment
Referring to the drawings shown in 1, the preparation facilities that improved silica of the present invention uses is to existing Ultrafine Jet Milling system
It is improved, it includes being sequentially connected the air accumulator 1 of setting, Gas grinding room 4, heater 9 and material collecting device.
The side wall middle and lower part of the Gas grinding room 4 offers SiO 2 powder base material charging aperture 5, the air accumulator 1 it is defeated
The jet 3 of air pipe 2 is arranged on the lower section of SiO 2 powder base material charging aperture 5, and the top of Gas grinding room 4 is fixed with can
The grading wheel 7 of rotation, dust outlet is offered in the Gas grinding room side wall of the lower section of the grading wheel 7.The grading wheel 7 is by classification electricity
Machine 6 drives, and realizes that the SiO 2 powder after making air-flow crushing is discharged from dust outlet.
Liquid addition mechanism is connected with powder conduit road 8 between the dust outlet and heater 9.The liquid adds
Material mechanism includes liquid addition tank 17 and mass flowmenter 16.Liquid addition tank 17 by connecting branch be connected to dust outlet with
On powder conduit road 8 between heater 9, mass flowmenter 16 is set on connecting branch, for controlling and detecting liquid
Addition.
The heater 9 is used for the SiO 2 powder air-flow heating for access liquid, realizes the evaporation of solvent in liquid.
The material collecting device is used to receive the improved silica powder air-flow discharged from heater 9, and the receipts that cool to it
Collection.Specifically, the material collecting device includes four receiving warehouses 10 being sequentially connected in series, wherein between the first receiving warehouse and the second receiving warehouse
Connected by rotary discharging valve 11, connected between the 3rd receiving warehouse and the 4th receiving warehouse by rotary discharging valve 11, the second rewinding
The bottom in storehouse is connected with the top of the 3rd receiving warehouse by material connecting tube 15, and the upper end of the first receiving warehouse and the 3rd receiving warehouse
Air-introduced machine 13 is connected by air inducing pipeline 12, the air-introduced machine 13 is used to provide power for SiO 2 powder air current flow, promoted
Make air current flow.The lower end of 4th receiving warehouse is discharging opening 18, for discharging obtained improved silica powder.
The preparation method that the present invention prepares improved silica using above-mentioned improved silica preparation facilities is as follows：
(1) raw material：
Raw material A：Silica base material, the silica dry powder such as white carbon, macro porous silica gel, aerosil may be selected
As base material, wherein requiring moisture≤4.5% of dry powder；
Raw material B：Aminopropyl triethoxysilane or glycerine ether oxygen propyl trimethoxy silicane；
Raw material C：Acetone, second alcohol and water, according to 1:1~3:0.2~0.8 mass ratio is well mixed.
(2) preparation process：
1st, raw material A is put into the Gas grinding room 4 of Ultrafine Jet Milling system, controls the inlet amount of silica dry powder
For 90~150kg/h；Gas into the Gas grinding room 4 is conveyed by gas pipeline 2 from air accumulator 1 simultaneously, then air-flow is to original
Expect that A powder carries out air-flow crushing, and the power upward to the powder.Grading wheel 7 will can meet as defined in SiO 2 powder from
Blow out, made it into powder conduit road 8 in dust outlet 6.
2nd, simultaneously, by raw material C and raw material B according to 1:In 2~6 mass ratioes input feeder 17, then pass through feeder 17
Added by mass flowmenter 16 in powder conduit road 8, the inlet amount for controlling raw material B is the 0.5~1% of raw material A.
Wherein, band dispersion impeller in feeder 17, rate of dispersion 6m/s, for realizing that charging is uniform.
3rd, the SiO 2 powder air-flow for adding raw material B and raw material C is flowed through in the heater 9 that temperature is stepped up,
The entrance point temperature of the heater is 80~100 DEG C, and discharge-end temperature is 230~250 DEG C, for realizing the steaming to raw material C
Hair removes.
4th, again by the improved silica powder air-flow for removing raw material C in the presence of air-introduced machine 13, first is flowed into successively
Receiving warehouse, the second receiving warehouse, the 3rd receiving warehouse and the 4th receiving warehouse, finally discharged from the discharging opening 18 of the 4th receiving warehouse obtained
Improved silica powder.
The modification preparation method of improved silica of the present invention, make the improved silica grain prepared by this method
Degree is uniform, may be used in leather surface processing, is used as delustering agent, its flatting efficiency is significantly increased, specific embodiment
It is as follows.
Embodiment 1
By the Ultrafine Jet Milling system warm-up, precipitated silica dry powder base material is added into Gas grinding room 4
300kg, it is 90kg/h to control inlet amount；
It is 1 by aminopropyl triethoxysilane (A1100) 3kg, and according to acetone, ethanol and water quality ratio:2:0.5 mixing
Uniform 0.5kg, it is common to add in feeder 17, to control the inlet amount of aminopropyl triethoxysilane as 900g/h speed
Add in powder conduit road 8, the SiO 2 powder air-flow for adding aminopropyl triethoxysilane solution is flowed through into heating dress
In putting 9, the entrance point temperature of the heater 9 is 100 DEG C, and discharge-end temperature is 230 DEG C, realize to solvent acetone, ethanol and
The evaporative removal of water, then by the improved silica powder air-flow in the presence of air-introduced machine 13, flow into successively the first receiving warehouse,
Second receiving warehouse, the 3rd receiving warehouse and the 4th receiving warehouse, the modification finally obtained in the discharge of discharging opening 18 of the 4th receiving warehouse
SiO 2 powder, average grain diameter are 3.6 μm.
Embodiment 2
By the Ultrafine Jet Milling system warm-up, white carbon dry powder base material 4000kg, control are added into Gas grinding room 4
Inlet amount is 150kg/h；
It is 1 by glycerine ether oxygen propyl trimethoxy silicane (KH560) 20kg, and according to acetone, ethanol and water quality ratio:3:
0.8 well mixed 4kg, it is common to add in feeder 17, to control the inlet amount of aminopropyl triethoxysilane as 1.5kg/h
Speed add in powder conduit road 8, the SiO 2 powder gas of glycerine ether oxygen propyl trimethoxy silicane solution will be added
Stream is flowed through in heater 9, and the entrance point temperature of the heater 9 is 80 DEG C, and discharge-end temperature is 250 DEG C, is realized to solvent
The evaporative removal of acetone, second alcohol and water, then the improved silica powder air-flow is flowed into successively in the presence of air-introduced machine 13
First receiving warehouse, the second receiving warehouse, the 3rd receiving warehouse and the 4th receiving warehouse, are finally discharged in the discharging opening 18 of the 4th receiving warehouse
The improved silica powder arrived, average grain diameter are 4.4 μm.
Embodiment 3
By the Ultrafine Jet Milling system warm-up, white carbon dry powder base material 2000kg, control are added into Gas grinding room 4
Inlet amount is 120kg/h；
It is 1 by aminopropyl triethoxysilane (A1100) 16kg, and according to acetone, ethanol and water quality ratio:1:0.2 is mixed
Uniform 4kg is closed, it is common to add in feeder 17, to control the inlet amount of aminopropyl triethoxysilane as 1.2kg/h speed
Degree is added in powder conduit road 8, and the SiO 2 powder air-flow for adding aminopropyl triethoxysilane solution is flowed through into heating
In device 9, the entrance point temperature of the heater 9 is 90 DEG C, and discharge-end temperature is 240 DEG C, realize to solvent acetone, ethanol and
The evaporative removal of water, then by the improved silica powder air-flow in the presence of air-introduced machine 13, flow into successively the first receiving warehouse,
Second receiving warehouse, the 3rd receiving warehouse and the 4th receiving warehouse, the modification finally obtained in the discharge of discharging opening 18 of the 4th receiving warehouse
SiO 2 powder, average grain diameter are 4.0 μm.
Comparative example 1
Undressed precipitated silica powder directly makees delustering agent, 3.5 μm of average grain diameter.
Comparative example 2
Undressed white carbon powder directly makees delustering agent, and average grain diameter is 4.5 μm.
Comparative example 3
Undressed white carbon powder directly makees delustering agent, and average grain diameter is 4.2 μm.
Application Example
The improved silica powder that above-described embodiment 1 to 3 obtains is done with the SiO 2 powder in comparative example 1 to 3
Leather surface Spraying technique verifies that verification method is：
First, carry out leather surface processing finishing agent to prepare, weigh SiO 2 powder in above-described embodiment or comparative example
3.6g, polyurethane resin 90g, butanone 30g.
The above-mentioned material weighed is disperseed into 10min by high speed dispersor under 2000r/min rotating speeds again, in black PU skins
Remove from office and covered with paint, lacquer, colour wash, etc. on ground with 15 μm of silk rods, 100 DEG C of drying 1min, verify coating effect.
Extinction performance result such as table 1 below：
1 different SiO 2 powders of table are used as the extinction performance testing result of delustering agent
Wherein, glossiness resin is tested according to glossometer, adjusts the addition of delustering agent, to add percentage to count more
Amount, more addition percent resins when reaching identical gloss value represent silica dioxide delustring agent modification extinction lifting width
Degree.As known from Table 1, delustring of the improved silica that process for preparing silicon dioxide modified by this invention obtains as leather and fur products
Agent, flatting efficiency can be improved and be up to 18%.
Accompanying drawing 2 is the design sketch that improved silica is used for leather surface afterwards before modified in above-mentioned Application Example, wherein
Left side is treatment effect of the obtained improved silica of Application Example 1 as delustering agent, and right side obtains for Application Example 1
Precipitated silica powder directly make the treatment effect of delustering agent, as it is clear from fig. 2 that the modification titanium dioxide by modification
The product that silicon obtains as delustering agent, the product obtained than untreated SiO 2 powder directly as delustering agent, from
From the point of view of intuitively blackness is extinction performance, coating effect is good, and extinction performance is greatly improved.
And it is surprising that the improved silica obtained using the method for the present invention, is handled in leather surface
Cover with paint, lacquer, colour wash, etc. and added in inorganic agent, be made at dumb light leather table after agent, original coating system viscosity can be significantly reduced, be beneficial to significantly
The application system adjustment in later stage.
Improved silica epigranular, pore structure stabilization, the purity of preparation method preparation of the invention are high, flatting efficiency
It is excellent, significantly improve flatting efficiency.
The present invention uses Comminution Technology for Ultrafine Powders, and is incorporated in process of air delivery and adds modifying agent, and what is obtained changes
Property silica there is good extinction performance, can assign coating superpower matte effect, and film forming coatings particle arrangement it is homogeneous,
Gloss is soft, can meet matt coating demand, and maintains a long-term stability effectively, and form and aspect are balanced.And the present invention is to use dioxy
The dry powder of SiClx is directly handled on a production line, it is not necessary to special pre-treatment, is omitted the thing of intermediate link
Material loss, it is simple to operate, cost is low.
The improved silica that the present invention is prepared can be widely used in leather surface processing covering with paint, and in poly- ammonia
It also can be widely used in the systems such as ester, PVC, more extensive selection space is provided for later stage leather Application Engineer.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, this
Art personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (10)
1. a kind of preparation method of improved silica, it is characterised in that the preparation method is：In SiO 2 powder base material
Middle addition silane coupler solution, then cool after heating removes solvent and improved silica is made, wherein, the silane is even
The addition quality for joining agent is the 0.5~1% of the SiO 2 powder substrate mass.
2. the preparation method of improved silica according to claim 1, it is characterised in that the silane coupler is ammonia
Propyl-triethoxysilicane or glycerine ether oxygen propyl trimethoxy silicane,
The silane coupler solution is to use by acetone, ethanol, water using mass ratio as 1：1~3：The mixing of 0.2~0.8 mixing
Solvent dissolves the silane coupler and formed；
The mass ratio of the silane coupler and the mixed solvent is 4~6：1.
3. the preparation method of improved silica according to claim 1, it is characterised in that the SiO 2 powder base
Material is white carbon, macro porous silica gel or aerosil, and its moisture is less than or equal to 4.5%.
4. the preparation method of the improved silica according to any one of claims 1 to 3, it is characterised in that the silane
Coupling agent solution is added in the SiO 2 powder base material delivery air by way of at the uniform velocity disperseing, the titanium dioxide
The inlet amount of SiO 2 powder base material described in Si powder base material delivery air is 90~150kg/h.
5. the preparation method of improved silica according to claim 4, it is characterised in that the SiO 2 powder base
Material delivery air is by the way that SiO 2 powder base material is just uniformly conveyed after air-flow crushing.
6. the preparation method of improved silica according to claim 5, it is characterised in that described the step of removing solvent
For：The SiO 2 powder air-flow for adding the silane coupler solution is flowed through into the heater that temperature is stepped up, it is described
The entrance point temperature of heater is 80~100 DEG C, and discharge-end temperature is 230~250 DEG C, realizes the evaporative removal to solvent.
7. the improved silica being prepared as the improved silica preparation method described in any one of claim 1 to 6 is made
For the application of leather delustering agent.
8. a kind of preparation facilities of improved silica, it is characterised in that air accumulator, Gas grinding including being sequentially connected setting
Room, heater and material collecting device,
The side wall middle and lower part of the Gas grinding room offers SiO 2 powder base material charging aperture, the appendix of the air accumulator
The gas outlet on road is arranged on the lower section of the SiO 2 powder base material charging aperture, and the top of the Gas grinding room is fixed with can
The grading wheel of rotation, dust outlet is offered in the Gas grinding room side wall below the grading wheel；
Liquid addition mechanism is connected with connecting line between the dust outlet and heater；
The heater, for add the heating of the SiO 2 powder air-flow of liquid, realizing the evaporation of solvent in liquid；
The material collecting device, for receiving the improved silica powder air-flow from heater discharge, and it is cooled,
The material collecting device is also connected with air-introduced machine, and the air-introduced machine, which is used to provide for the improved silica powder air current flow, to be moved
Power.
9. the preparation facilities of improved silica according to claim 8, it is characterised in that liquid addition mechanism bag
Liquid addition tank and mass flowmenter are included, the liquid addition tank is connected to the dust outlet by connecting branch and filled with heating
On connecting line between putting, the mass flowmenter is set on the connecting branch.
10. the preparation facilities of improved silica according to claim 8, it is characterised in that the material collecting device includes
Four receiving warehouses being sequentially connected in series, wherein being connected between the first receiving warehouse and the second receiving warehouse by rotary discharging valve, the 3rd receives
Connected between feed bin and the 4th receiving warehouse by rotary discharging valve, the bottom of the second receiving warehouse and the top of the 3rd receiving warehouse pass through
Material connecting tube connects, and the upper end of first receiving warehouse and the 3rd receiving warehouse is respectively connected with air-introduced machine, the 4th rewinding
The bottom in storehouse is discharging opening.
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| CN108993413A (en) * | 2018-07-25 | 2018-12-14 | 南京工业大学 | Preparation method of amino modified precipitated silica |
| CN110408237A (en) * | 2019-08-07 | 2019-11-05 | 江苏联瑞新材料股份有限公司 | A kind of woodcare paint clear finish silicon powder and preparation method thereof |
| CN111545157A (en) * | 2020-05-29 | 2020-08-18 | 山东埃尔派粉体科技股份有限公司 | Silicon micropowder modification device and production process thereof |
| CN111620345A (en) * | 2020-06-22 | 2020-09-04 | 金三江(肇庆)硅材料股份有限公司 | Superfine hydrophobic silicon dioxide and preparation method thereof |
| CN111748234A (en) * | 2020-07-07 | 2020-10-09 | 威远达威木业有限公司 | Cationic extinction filler and preparation method thereof |
| CN112175600A (en) * | 2020-08-31 | 2021-01-05 | 西南石油大学 | Novel foam stabilizer and preparation method thereof |
| CN113150387A (en) * | 2021-04-21 | 2021-07-23 | 江苏联瑞新材料股份有限公司 | Preparation method of hydrophobic silicon micro powder |
| CN115028895A (en) * | 2022-06-24 | 2022-09-09 | 江苏联瑞新材料股份有限公司 | Preparation method of modified spherical alumina for enhancing strength of epoxy resin |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108993413A (en) * | 2018-07-25 | 2018-12-14 | 南京工业大学 | Preparation method of amino modified precipitated silica |
| CN108993413B (en) * | 2018-07-25 | 2021-06-22 | 南京工业大学 | Preparation method of amino modified precipitated silica |
| CN110408237A (en) * | 2019-08-07 | 2019-11-05 | 江苏联瑞新材料股份有限公司 | A kind of woodcare paint clear finish silicon powder and preparation method thereof |
| CN111545157A (en) * | 2020-05-29 | 2020-08-18 | 山东埃尔派粉体科技股份有限公司 | Silicon micropowder modification device and production process thereof |
| CN111545157B (en) * | 2020-05-29 | 2024-02-27 | 山东埃尔派粉体科技股份有限公司 | Silicon micropowder modification device and production process thereof |
| CN111620345A (en) * | 2020-06-22 | 2020-09-04 | 金三江(肇庆)硅材料股份有限公司 | Superfine hydrophobic silicon dioxide and preparation method thereof |
| CN111748234A (en) * | 2020-07-07 | 2020-10-09 | 威远达威木业有限公司 | Cationic extinction filler and preparation method thereof |
| CN112175600A (en) * | 2020-08-31 | 2021-01-05 | 西南石油大学 | Novel foam stabilizer and preparation method thereof |
| CN112175600B (en) * | 2020-08-31 | 2022-07-01 | 西南石油大学 | Novel foam stabilizer and preparation method thereof |
| CN113150387A (en) * | 2021-04-21 | 2021-07-23 | 江苏联瑞新材料股份有限公司 | Preparation method of hydrophobic silicon micro powder |
| CN115028895A (en) * | 2022-06-24 | 2022-09-09 | 江苏联瑞新材料股份有限公司 | Preparation method of modified spherical alumina for enhancing strength of epoxy resin |
| CN115028895B (en) * | 2022-06-24 | 2024-04-02 | 江苏联瑞新材料股份有限公司 | Preparation method of modified spherical alumina for enhancing strength of epoxy resin |
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Application publication date: 20180327 |