CN110183099A - A kind of manufacturing method of expanded porous glass particle - Google Patents
A kind of manufacturing method of expanded porous glass particle Download PDFInfo
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- CN110183099A CN110183099A CN201910634247.1A CN201910634247A CN110183099A CN 110183099 A CN110183099 A CN 110183099A CN 201910634247 A CN201910634247 A CN 201910634247A CN 110183099 A CN110183099 A CN 110183099A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/08—Other methods of shaping glass by foaming
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C11/00—Multi-cellular glass ; Porous or hollow glass or glass particles
- C03C11/007—Foam glass, e.g. obtained by incorporating a blowing agent and heating
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Abstract
The present invention proposes a kind of manufacturing method of expanded porous glass particle, including step 1, by glass raw material, foaming agent and auxiliary material in milling equipment common or separate compiling；Step 2, by the resulting material mixing of step 1 it is uniform after, be prepared into particle in balling-up equipment；Step 3 coats one layer higher than particle fusing point of raw material in the particle surface prepared again or can react the raw material of the generation substance higher than particle fusing point with glass；The particle prepared can also be mixed to the raw material higher than particle fusing point or can be reacted with glass the raw material mixing for generating the substance higher than particle fusing point；Step 4 after the drying of step 3 obtained material or will be sent directly into kiln and calcine, and foaming inside particle, forms expanded porous glass particle in calcination process.The above method can make with short production cycle, simple process and continuous, and products obtained therefrom sphericity is good, and percent opening is low, and water absorption rate is low；Prepared product cut size broad covered area, product purpose are wide.
Description
Technical field
The present invention relates to the manufacturing technology field of glass particle more particularly to a kind of manufacturers of expanded porous glass particle
Method.
Background technique
Foam glass, can be in occasions such as heat preservation, heat-insulated, fire-retardant, sound-absorbings because of its non-combustible, environmental-friendly and structural porous
Using.The method that tradition prepares foam glass is by glass by broken, and addition foaming agent after grinding, is packed into mold, then pass through again
Preheating-calcining is crossed, high temperature foaming and intumescing is carried out and is formed, the machining such as cutting is eventually passed through, foam glass brick, plate etc. is made
Block materials are re-used as basic material and are applied.The foam glass of this method preparation production, often lacks the side such as flexibility
The performance in face limits it in many applications and plays a role.Therefore production technology of the people based on current foam glass, adds
Enter the post-processing approach such as broken, water quenching, foam glass block product is processed into particle, then the foam glass that processing is obtained
Grain, is made combination product as the other materials such as light filler and gypsum, cement, resin, it is expected that further play its is fire-retardant, every
The effects of heat, sound-absorbing.However the particle obtained with the methods of broken or water quenching processing foam glass block, because of its grain shape sphericity
It is low, through-hole rate is high, water absorption rate is high, residue is more, classification efficiency is low, loss it is big the problems such as, it is difficult to dosage, performance, efficiency and at
This etc. is improved, so that the occasion for currently forming sizable application is extremely limited.
Foam glass ball (expanded glass ball): for several respects problem of foam glass crushed particles, German poraver is public
Department etc. carries out PRODUCTION TRAITS, after glass powder grinding, adds water and alkali to carry out heating stirring several hours, to dry or add glass
The mode of dry powder controls water content and raw material is made, and by being granulated, prepares surface-closed, water absorption rate with 790 DEG C of calcinings of traditional handicraft
Foam glass particle that is low, being easy to classification, good sphericity.The product of technology production is formd as light filler in America and Europe
A variety of applications.But there are still material conditions, and height to be required (to press China's cullet grade scale, be only applicable to 2 at present for its process
Grade or more waste plate glass and 1 grade of domestic glass), treatment conditions harsh (strong basicity stirring pool), production cycle, long (volume production was stirred
Mixing the time can extend very much), half-continuous process link more (stirring pools occupancy be not consecutive production raw material), to be applicable in kiln type few
The problems such as (cost and the high external-heating rotary kiln of maintenance cost).Therefore its technology is not appropriate for China to foam glass particle
Demand.
Similar light filler further includes haydite class and cenosphere class.Light ceramic production technology is mostly with clay, fine coal
Or mixtures thereof minerals such as ash, gangue are used as raw material, form light ceramic by grinding-granulation-calcining foaming and intumescing.But
Component feature and process characteristic of such product because of its raw material, it is difficult to which preparation is less than the light ceramic of 2mm partial size.And light ceramic
Bulk density (bulk density) be much larger than foam glass particle.And the production technology of cenosphere class product is mostly difficult to prepare
Greater than the product of 2mm partial size, and often, bearing capacity is weak, high production cost.
Summary of the invention
In order to solve the problems in the existing technology, the invention proposes a kind of manufacturers of expanded porous glass particle
Method, simple process and continuous with short production cycle to make, the sphericity of products obtained therefrom is good, and percent opening is low, and water absorption rate is low；
Prepared product cut size broad covered area, product purpose are wide.
To achieve the goals above, the invention proposes a kind of manufacturing method of expanded porous glass particle, including it is following
Step:
Step 1, by glass raw material, foaming agent and auxiliary material in milling equipment common or separate compiling；Wherein glass
The volume of raw material is 50~99.5wt%, and the volume of foaming agent is 0.3~10wt%, the volume of auxiliary material is 0~
49.7wt%；
Step 2, by the resulting material mixing of step 1 it is uniform after, be prepared into particle in balling-up equipment；
Step 3, the particle surface prepared coat again one layer higher than particle fusing point raw material or can be with glass
Reaction generates the raw material of the substance higher than particle fusing point；It can also be by the particle prepared and the raw material higher than particle fusing point
Mixing can react the raw material mixing for generating the substance higher than particle fusing point with glass；
Step 4 after the drying of step 3 obtained material or will be sent directly into kiln and calcine, in calcination process in particle
Portion's foaming, forms expanded porous glass particle.
Preferably, in the step 1, the glass raw material uses cullet.
Preferably, in the step 1, carbonate material, Sulfates material, carbon materials is can be used in the foaming agent
The raw material, and/or pyrolytic of material or producible carbon material can release the material of gas；Wherein carbonate material includes carbonic acid
Calcium, barium carbonate, magnesium calcium carbonate, sodium carbonate, potassium carbonate, lithium carbonate, calcium bicarbonate, sodium bicarbonate and siderite；Sulfates material
Material includes sodium sulphate, potassium sulfate, lithium sulfate, calcium sulfate and magnesium sulfate；The raw material of carbon material or producible carbon material include carbon black,
Graphite, starch and carbohydrate；The material that pyrolytic can release gas includes manganese dioxide；The foaming agent can be used any of the above-described
Kind material either multiple material is used cooperatively.
Preferably, in the step 1, the auxiliary material is divided into two classes, and one kind is the material for improving properties of product,
Including borax and antimony oxide；The another kind of material to reduce production cost, for the material containing silica, including commonly glues
Soil, kaolin, white clay, flyash, talcum, feldspar, solid sodium silicate, Gain-calcium dregs, calcium-enforced slag, slag, steel slag and other with
Tailing, waste residue based on silica.
Preferably, in the step 1, when glass raw material, foaming agent and auxiliary material in milling equipment common powder
When mill, mills using ball mill, roller mill, Raymond mill or wheel and carry out grinding；When glass raw material, foaming agent and auxiliary material are in powder
When grinding separate compiling in equipment, mills using ball mill or wheel and carry out grinding.
Preferably, in the step 1, grinding method uses two methods of dry method grinding or wet grinding, wherein doing
When method grinding, grinding to fineness to be more than 150 mesh；Wet grinding be added waterglass, silica solution, sodium hydroxide, polyvinyl alcohol,
Or the aqueous solution or alcoholic solution of waterglass and sodium hydroxide mixture, as wet grinding media, solution concentration is 0~45wt%.
Preferably, in the step 2, when step 1 obtains grinding material using dry method grinding, two kinds of granulations can be used
Method: one kind is that pan-pelletizer is granulated, and one kind is that spray drying process is granulated；When being granulated using pan-pelletizer, it can be used in pan-pelletizer
Wet process or dry method are granulated, and when using dry method to be granulated in pan-pelletizer, binder solution is added in grinding material,
Wherein per kilogram grinding material uses the solution of 100ml~150ml binder；When using wet process to be granulated in pan-pelletizer,
Binder solution is added in grinding material, wherein per kilogram grinding material uses the solution of 150ml~350ml binder；Work as use
When spray drying process is granulated, binder solution is added in grinding material, wherein the solution of per kilogram grinding material hybrid adhesive
350ml~1600ml；The binder solution is waterglass, silica solution, sodium hydroxide, polyvinyl alcohol or waterglass and hydrogen
The aqueous solution or alcoholic solution of sodium oxide molybdena mixture, solution concentration are 0~45wt%；
When step 1 obtains grinding material using wet grinding, spray drying process granulation can be directly used；It can also be by powder
After abrasive material is dry, prilling process when obtaining grinding material using above-mentioned dry method grinding is granulated；Part moisture content can also be removed
Later, it is granulated using pan-pelletizer.
Preferably, in the step 3, the raw material use pulverulent material；The raw material can for calcium carbonate,
Barium carbonate, calcium bicarbonate, unselected clay, kaolin, white clay, flyash, talcum, feldspar, Gain-calcium dregs, increases calcium at magnesium calcium carbonate
Ash, slag, steel slag and other tailings based on silica, waste residue preparation powder；The usage amount of the raw material: by being made
The weight ratio of particle and raw material is the range of 33:1~1.6:1, takes raw material.
Preferably, in the step 4, the kiln can use rotary kiln, tunnel oven, pushed bat kiln, roller kilns, shuttle
Formula kiln or furnace for expanding perlite；
When using rotary kiln, kiln temperature range is 720 DEG C~1050 DEG C, and entering kiln calcination time is 20 minutes~90 points
Clock；
When using roller kilns, pushed bat kiln or tunnel oven, kiln temperature range is 800 DEG C~1050 DEG C, when entering kiln calcining
Between be 30 minutes~90 minutes；
When using shuttle kiln or furnace for expanding perlite, kiln temperature range is 820~970 DEG C, and entering kiln calcination time is
20 minutes~70 minutes.
It preferably, further include step 41 in the step 4, step 41 cools down calcined product, after cooling
Up to expanded porous glass particle；Finished product after cooling is carried out plus water rinses, gained particle is sieved to obtain difference
The expanded porous glass particle of partial size.
The manufacturing method of expanded porous glass particle involved in above-mentioned technical proposal has the beneficial effect that:
1, it is (useless flat that standard GB/T/T 36577-2018 defined 0801 is covered on glass raw material Application Range
Glass sheet), 0802 (useless domestic glass), 0803 (useless special glass) and 0804 (waste glass fibre) each grade cullet object
Material.
2, proportion aspect: glass raw material dosage highest can be more than 99%, just realize make full use of to cullet in this way.
3, grinding --- is granulated the technical process of --- wrapper --- calcining: with short production cycle, simple process and continuous.
4, the package of lapping or mixing: restriction effect is played to granule foaming expansion, realizes glass in kiln
While the abundant foaming and intumescing of particle, single granule of each particle has been ensured, thus keep the sphericity of product good, and
Percent opening is low, and water absorption rate is low.
5, calcine technology range: technique parameter area allowable is wide, is suitble to a variety of kiln types.Particularly, it is suitble to be returned with internal heat type
Rotary kiln carries out preparation production.
6, product cut size broad covered area can cover the scale volume production of partial size 0.0125mm~15mm.
7, product purpose is wide: product cut size from low to high, can be respectively as resin extender, fire retardant, colloid filler, cement
With mortar filler, gypsum filler, heat insulation integrated filler etc., with realize good lightweight, heat preservation, heat-insulated, resistance to compression, sound-absorbing,
It is fire-retardant and other effects.
Specific embodiment
A specific embodiment of the invention is further described below with reference to embodiment.
The manufacturing method of expanded porous glass particle according to the present invention the following steps are included:
Step 1, by glass raw material, foaming agent and auxiliary material in milling equipment common or separate compiling；Wherein glass
The volume of raw material is 50~99.5wt%, and the volume of foaming agent is 0.3~10wt%, the volume of auxiliary material is 0~
49.7wt%.
The glass raw material preferentially selects cullet, such as sheet cullet, waste container glass, waste glass fibre etc..
The foaming agent can be used carbonate material, Sulfates material, carbon material or producible carbon material raw material,
Pyrolytic can release the material of gas.Wherein carbonate material includes calcium carbonate, barium carbonate, magnesium calcium carbonate, sodium carbonate, carbon
Sour potassium, lithium carbonate, calcium bicarbonate, sodium bicarbonate, siderite etc.；Sulfates material include sodium sulphate, potassium sulfate, lithium sulfate,
Calcium sulfate, magnesium sulfate etc.；The raw material of carbon material or producible carbon material includes the materials such as carbon black, graphite, starch, carbohydrate；High temperature
Decomposition can release material such as manganese dioxide of gas etc..Above-mentioned various foaming agent materials several can also be cooperated with single use
It uses, it is preferential that calcium carbonate or sodium carbonate is used alone.
The auxiliary material is mainly two classes, and one kind is the main material for improving properties of product, including borax and three oxidations
Two antimony；The another kind of material to reduce production cost, predominantly containing the material of silica, including it is unselected clay, kaolin, white
Clay, flyash, talcum, feldspar, solid sodium silicate, Gain-calcium dregs, calcium-enforced slag, slag, steel slag and other with silica be main tail
Mine, waste residue etc., auxiliary material can not add, and can also add one or more, and additive amount is 0~49.7wt%.
When glass raw material, foaming agent and the auxiliary material intergrinding in milling equipment, ball mill, roll-type can be used
Mill, Raymond mill, the wheel milling equipments such as mill carry out grinding；When glass raw material, foaming agent and auxiliary material are divided in milling equipment
When other grinding, the milling equipments that can be milled etc. using ball mill, wheel carry out grinding.Grinding method can be using dry method grinding and wet
Two methods of method grinding wherein when dry method grinding, grinding to fineness to be more than 150 mesh；Wet grinding can be added waterglass,
The aqueous solution or alcoholic solution of silica solution, sodium hydroxide, polyvinyl alcohol, waterglass and sodium hydroxide mixture etc. are situated between as wet-milling
Matter, solution concentration are 0~45wt%.
Step 2, by the resulting material mixing of step 1 it is uniform after, be prepared into particle in balling-up equipment；
Specifically, two kinds of prilling process can be used when step 1 obtains grinding material using dry method grinding: one kind is balling-up
Disk is granulated, and one kind is that spray drying process is granulated.When being granulated using pan-pelletizer, it can be carried out in pan-pelletizer using wet process or dry method
It is granulated, when using dry method to be granulated in pan-pelletizer, binder solution is added in grinding material, wherein per kilogram grinding material
Use the solution of 100ml~150ml binder；When using wet process to be granulated in pan-pelletizer, it is added in grinding material viscous
Agent solution is tied, wherein per kilogram grinding material uses the solution of 150ml~350ml binder.When being granulated using spray drying process,
Binder solution is added in grinding material, wherein solution 350ml~1600ml of per kilogram grinding material hybrid adhesive.It is described viscous
Knot agent solution be waterglass, silica solution, sodium hydroxide, polyvinyl alcohol, waterglass and sodium hydroxide mixture etc. aqueous solution or
Alcoholic solution, solution concentration are 0~45wt%.
When step 1 obtains grinding material using wet grinding, spray drying process granulation can be directly used；It can also be by powder
After abrasive material is dry, prilling process when obtaining grinding material using above-mentioned dry method grinding is granulated；A part of water can also be removed
After part, it is granulated using pan-pelletizer.
Step 3, the particle surface prepared coat again one layer higher than particle fusing point raw material or can be with glass
Reaction generates the raw material of the substance higher than particle fusing point；It can also be by the particle prepared and the raw material higher than particle fusing point
Mixing can react the raw material mixing for generating the substance higher than particle fusing point with glass.
The wherein raw material preferably powdered material.The raw material can be calcium carbonate, barium carbonate, magnesium calcium carbonate, carbon
Sour hydrogen calcium, unselected clay, kaolin, white clay, flyash, talcum, feldspar, Gain-calcium dregs, calcium-enforced slag, slag, steel slag and other
It take silica as the powder (fine powder) of the preparations such as main tailing, waste residue；The usage amount of the raw material: by made particle and raw material
Weight ratio be 33:1~1.6:1 range, take raw material.
Step 4 after the drying of step 3 obtained material or will be sent directly into kiln and calcine, in calcination process in particle
Portion's foaming, forms expanded porous glass particle.
Wherein the kiln can be using rotary kiln, tunnel oven, pushed bat kiln, roller kilns, shuttle kiln, furnace for expanding perlite etc.
High temperature kiln.
When using rotary kiln, kiln temperature range is 720 DEG C~1050 DEG C, and entering kiln calcination time is 20 minutes~90 points
Clock, preferably kiln temperature are 830~850 DEG C, and entering kiln calcination time is 40 minutes~60 minutes.
When using roller kilns, pushed bat kiln or tunnel oven, kiln temperature range is 800 DEG C~1050 DEG C, when entering kiln calcining
Between be 30 minutes~90 minutes, preferably kiln temperature be 820~870 DEG C, enter kiln calcination time be 40 minutes~70 minutes.
When using shuttle kiln, furnace for expanding perlite, kiln temperature range is 820~970 DEG C, and entering kiln calcination time is 20
Minute~70 minutes, preferably kiln temperature is 860~890 DEG C, and entering kiln calcination time is 30 minutes~50 minutes.
It can also include step 41 in the step 4, step 41 cools down calcined product, after cooling to obtain the final product
Expanded porous glass particle；Finished product after cooling is carried out plus water rinses, to remove the powder-material on the outside of finished product, by gained particle
It is sieved to obtain the expanded porous glass particle of different-grain diameter.
The manufacturing method of expanded porous glass particle according to the present invention has the beneficial effect that:
(1) it is (useless flat that standard GB/T/T 36577-2018 defined 0801 is covered on glass raw material Application Range
Glass sheet), 0802 (useless domestic glass), 0803 (useless special glass) and 0804 (waste glass fibre) each grade cullet object
Material.
(2) proportion aspect: glass raw material dosage highest can be more than 99%, just realize the abundant benefit to cullet in this way
With.
(3) grinding --- is granulated the technical process of --- wrapper --- calcining: with short production cycle, simple process and company
It is continuous.
(4) package of lapping or mixing: restriction effect is played to granule foaming expansion, realizes glass in kiln
While the abundant foaming and intumescing of particle, single granule of each particle has been ensured, thus keep the sphericity of product good, and
Percent opening is low, and water absorption rate is low.
(5) calcine technology range: technique parameter area allowable is wide, is suitble to a variety of kiln types.Particularly, it is suitble to be returned with internal heat type
Rotary kiln carries out preparation production.
(6) product cut size broad covered area can cover the scale volume production of partial size 0.0125mm~15mm.
(7) product purpose is wide: product cut size from low to high, can be respectively as resin extender, fire retardant, colloid filler, water
Mud and mortar filler, gypsum filler, heat insulation integrated filler etc., to realize good lightweight, heat preservation, heat-insulated, resistance to compression, suction
Sound, fire-retardant and other effects.
Embodiment 1
It is crushed cullet and calcium carbonate that crusher machine obtains and dry ball milling system in ball mill is added by the mass ratio of 95:5
Powder is milled into 150 powder materials.Powder obtained is sent into first pan-pelletizer, and powder is sprayed in the ratio of 200ml/kg simultaneously
The water glass solution that concentration is 15wt% is drenched, adjustment pan-pelletizer prepares pellet shapes material particles.System will be granulated in first pan-pelletizer
The pellet shapes material particles obtained are sent into second pan-pelletizer, while to pellet shapes material by 200g/kg (namely made particle
Weight ratio with raw material is 5:1) Paris white is added, adjustment pan-pelletizer makes Paris white realize package to pellet shapes material.
Material through calcium carbonate package made from second pan-pelletizer is sent into rotary kiln, rotary kiln high-temperature region temperature is adjusted to 780 DEG C,
Material is adjusted by the high-temperature region time to 40min, continuous to obtain expansion globular material.The expansion that calcined by rotary kiln is prepared
After globular material is cooling plus water rinses, and obtains expanded glass microballoon.The expanded glass microballoon that rinsing obtains is sieved through rotary screen
Obtain the expanded glass microballoon of size fractionated.The expanded glass microballoon sphericity that the embodiment can be prepared is preferable, accumulates close
Degree is in 210kg/m3~270kg/m3Range.
Embodiment 2
Dry ball milling powder in ball mill is added by the mass ratio of 95:5 in fiberglass products tailing and calcium carbonate, is ground
At 200 powder materials.Powder obtained is sent into first pan-pelletizer, and is in the ratio spray concentration of 150ml/kg to powder simultaneously
The water glass solution of 15wt%, adjustment pan-pelletizer prepare pellet shapes material particles.Bead obtained will be granulated in first pan-pelletizer
Shape material particles are sent into second pan-pelletizer, while Paris white is added by 300g/kg to pellet shapes material, adjust pan-pelletizer
Paris white is realized to pellet shapes material to wrap up.Material through calcium carbonate package made from second pan-pelletizer is sent into revolution
Kiln, rotary kiln high-temperature region temperature are adjusted to 780 DEG C, and material is adjusted by the high-temperature region time to 40min, continuous to obtain expansion spherical shape
Material.After the expansion globular material that calcined by rotary kiln is prepared is cooling plus water rinses, and obtains expanded glass microballoon.It will rinsing
The expanded glass microballoon of acquisition sieves the expanded glass microballoon for obtaining size fractionated through rotary screen.What the embodiment can be prepared
Expanded glass microballoon bulk density is in 240kg/m3~270kg/m3Range.
Embodiment 3
It is crushed cullet and calcium carbonate that crusher machine obtains and dry ball milling system in ball mill is added by the mass ratio of 90:10
Powder is milled into 300 powder materials.Powder obtained is sent into first pan-pelletizer, and powder is sprayed in the ratio of 300ml/kg simultaneously
The water glass solution that concentration is 15wt% is drenched, adjustment pan-pelletizer prepares pellet shapes material particles.System will be granulated in first pan-pelletizer
The pellet shapes material particles obtained are sent into second pan-pelletizer, while Paris white is added by 200g/kg to pellet shapes material, are adjusted
Whole pan-pelletizer makes Paris white realize package to pellet shapes material.The material that will be wrapped up made from second pan-pelletizer through calcium carbonate
It is sent into tunnel oven, tunnel oven high-temperature region temperature is adjusted to 810 DEG C, and material is adjusted by the high-temperature region time to 40min, continuous to obtain
Expand globular material.After the expansion globular material that tunnel oven calcining is prepared is cooling plus water rinsing, acquisition expanded glass are micro-
Ball.The expanded glass microballoon that rinsing is obtained sieves the expanded glass microballoon for obtaining size fractionated through rotary screen.The embodiment can
The expanded glass microballoon bulk density being prepared is in 210kg/m3~260kg/m3Range.
Embodiment 4
It is crushed cullet and calcium carbonate that crusher machine obtains and wet ball grinding system in ball mill is added by the mass ratio of 90:10
Slurry, slurry drying obtain 200 powder materials.Powder obtained is sent into first pan-pelletizer, and 150ml/kg is pressed to powder simultaneously
Ratio spray concentration be 15wt% water glass solution, adjustment pan-pelletizer preparation be less than 1mm globular material particle.It will be first
It is granulated pellet shapes material particles obtained in pan-pelletizer to be sent into second pan-pelletizer, while 300g/kg is pressed to pellet shapes material
Paris white is added, adjustment pan-pelletizer makes Paris white realize package to pellet shapes material.It will be passed through made from second pan-pelletizer
The material of calcium carbonate package is sent into rotary kiln, and rotary kiln high-temperature region temperature is adjusted to 780 DEG C, and material is adjusted by the high-temperature region time
It is continuous to obtain expansion globular material to 30min.After the expansion globular material that calcined by rotary kiln is prepared is cooling plus water floats
It washes, obtains expanded glass microballoon.The expanded glass microballoon that rinsing is obtained sieves the expansion glass for obtaining size fractionated through rotary screen
Glass microballoon.The expanded glass microballoon sphericity that the embodiment can be prepared is preferable, partial size is less than 3mm, and bulk density exists
240kg/m3~270kg/m3Range.
Embodiment 5
It is crushed cullet and calcium carbonate that crusher machine obtains to be added in ball mill by the mass ratio of 97:3, and is pressed simultaneously
The water glass solution wet ball grinding slurrying that concentration is 15wt% is added in the ratio of 200ml/kg.Slurry obtained is pumped through wriggling
Enter in spray drying tower, mist projection granulating prepares pellet shapes material particles.The material that mist projection granulating is obtained is sent into pan-pelletizer, simultaneously
Paris white is added by 400g/kg to material, adjustment pan-pelletizer makes Paris white realize package to pellet shapes material.Will by
The ball disk material obtained through Paris white package is sent into rotary kiln, and rotary kiln high-temperature region temperature is adjusted to 800 DEG C, and material passes through
The high-temperature region time adjusts to 20min, continuous to obtain expansion globular material.The expansion globular material that calcined by rotary kiln is prepared
After cooling plus water rinses, and obtains expanded glass microballoon.The expanded glass microballoon sphericity that the embodiment can be prepared is preferable,
Particle size is uniform, and cylindrical compress strength is high, and bulk density is in 270kg/m3~310kg/m3Range.
Embodiment 6
Cullet and Gain-calcium dregs, calcium carbonate that crusher machine obtains are crushed to be added in ball mill by the mass ratio of 50:40:10
Dry ball milling powder is milled into 400 powder materials.Powder obtained is sent into first pan-pelletizer, and 150ml/ is pressed to powder simultaneously
The water glass solution that the ratio spray concentration of kg is 15wt%, adjustment pan-pelletizer prepare pellet shapes material particles.By first balling-up
It is granulated pellet shapes material particles obtained in disk to be sent into second pan-pelletizer, while pellet shapes material is added by 300g/kg
Unselected clay, adjustment pan-pelletizer make clay realize package to pellet shapes material.It will be wrapped up made from second pan-pelletizer through clay
Material be sent into rotary kiln, rotary kiln high-temperature region temperature is adjusted to 950 DEG C, and material is adjusted by the high-temperature region time to 40min, even
It is continuous to obtain expansion globular material.After the expansion globular material that calcined by rotary kiln is prepared is cooling plus water rinses, and is expanded
Glass microsphere.The expanded glass microballoon that rinsing is obtained sieves the expanded glass microballoon for obtaining size fractionated through rotary screen.The reality
It is preferable to apply the expanded glass microballoon sphericity that example can be prepared, color is in dark red, and bulk density is in 260kg/m3~
290kg/m3Range.
Embodiment 7
It is crushed cullet and carbon black powder that crusher machine obtains to be added in ball mill by the mass ratio of 97:3, and is pressed simultaneously
The water glass solution wet ball grinding slurrying that concentration is 35wt% is added in the ratio of 400ml/kg.Slurry obtained is pumped into and is done by spraying
Mist projection granulating in dry tower.The material that mist projection granulating is obtained is sent into pan-pelletizer, while potassium is added in the ratio of 200g/kg to material
Feldspar fine powder, adjustment pan-pelletizer make potassium feldspar fine powder realize package to pellet shapes material.It will be by long through potassium made from pan-pelletizer
The material of stone fine powder package is sent into rotary kiln, and rotary kiln high-temperature region temperature is adjusted to 800 DEG C, and material is adjusted by the high-temperature region time
It is continuous to obtain expansion globular material to 30min.After the expansion globular material that calcined by rotary kiln is prepared is cooling plus water floats
It washes, obtains expanded glass microballoon.The expanded glass microballoon that rinsing is obtained sieves the expansion glass for obtaining size fractionated through rotary screen
Glass microballoon.The expanded glass microballoon that the embodiment can be prepared is in lividity and good sphericity, and particle size is more uniform, volume
Water absorption rate is low, and bulk density is in 230kg/m3~280kg/m3Range.
Embodiment 8
It is crushed cullet and calcium carbonate that crusher machine obtains to be added in ball mill by the mass ratio of 95:5, and is pressed simultaneously
The water glass solution wet ball grinding slurrying that concentration is 35wt% is added in the ratio of 400ml/kg.Slurry obtained is pumped into and is done by spraying
Mist projection granulating in dry tower.The material that mist projection granulating is obtained is sent into pan-pelletizer, and thin in the ratio of 150g/kg addition barium carbonate
Powder, adjustment pan-pelletizer realize barium carbonate powder to the package of material.Perlite expansion will be sent by the material of barium carbonate powder package
Furnace, high-temperature region temperature are adjusted to 970 DEG C, and material is adjusted by the high-temperature region time to 30min, continuous to obtain expansion globular material.
After the expansion globular material that calcining is prepared is cooling plus water rinses, and obtains expanded glass microballoon.The expansion that rinsing is obtained
Glass microsphere sieves the expanded glass microballoon for obtaining size fractionated through rotary screen.The expanded glass that the embodiment can be prepared is micro-
Ball sphericity is preferable, and bulk density is in 230kg/m3~270kg/m3Range.
Embodiment 9
Cullet and borax and calcium carbonate that crusher machine obtains are crushed to be added in ball mill by the mass ratio of 60:30:10,
And the water glass solution wet ball grinding slurrying that concentration is 35wt% is added in the ratio of 400ml/kg simultaneously.By mashing pump obtained
Enter mist projection granulating in spray drying tower.Pellet shapes material particles made from mist projection granulating are sent into pan-pelletizer, while to bead
Kaolin fine powder is added by 300g/kg in shape material, and adjustment pan-pelletizer makes kaolin fine powder realize package to pellet shapes material.It will be at
The ball disk material obtained wrapped up through kaolin fine powder is sent into rotary kiln, and rotary kiln high-temperature region temperature is adjusted to 880 DEG C, and material passes through
Spending the high-temperature region time adjusts to 40min, continuous to obtain expansion globular material.The expansion round that calcined by rotary kiln is prepared
After material is cooling plus water rinses, and obtains expanded glass microballoon.The expanded glass microballoon sphericity that the embodiment can be prepared is preferable,
Particle size uniformity, volume water absorption rate is low, and good in thermal shock, bulk density is in 280kg/m3~350kg/m3Range.
Claims (10)
1. a kind of manufacturing method of expanded porous glass particle, it is characterised in that: the following steps are included:
Step 1, by glass raw material, foaming agent and auxiliary material in milling equipment common or separate compiling；Wherein glass raw material
Volume be 50~99.5wt%, the volume of foaming agent is 0.3~10wt%, and the volume of auxiliary material is 0~49.7wt%；
Step 2, by the resulting material mixing of step 1 it is uniform after, be prepared into particle in balling-up equipment；
Step 3 coats one layer higher than particle fusing point of raw material in the particle surface prepared again or can react with glass
Generate the raw material of the substance higher than particle fusing point；The particle prepared can also be mixed with the raw material higher than particle fusing point
Or the raw material mixing for generating the substance higher than particle fusing point can be reacted with glass；
Step 4 after the drying of step 3 obtained material or will be sent directly into kiln and calcine, hair inside particle in calcination process
Bubble forms expanded porous glass particle.
2. the manufacturing method of expanded porous glass particle according to claim 1, it is characterised in that: in the step 1,
The glass raw material uses cullet.
3. the manufacturing method of expanded porous glass particle according to claim 1 or 2, it is characterised in that: in the step 1
In, the foaming agent can be used carbonate material, Sulfates material, carbon material or producible carbon material raw material, and/or
Pyrolytic can release the material of gas；Wherein carbonate material includes calcium carbonate, barium carbonate, magnesium calcium carbonate, sodium carbonate, carbon
Sour potassium, lithium carbonate, calcium bicarbonate, sodium bicarbonate and siderite；Sulfates material includes sodium sulphate, potassium sulfate, lithium sulfate, sulphur
Sour calcium and magnesium sulfate；The raw material of carbon material or producible carbon material includes carbon black, graphite, starch and carbohydrate；Pyrolytic can be put
The material of gas includes manganese dioxide out；The either multiple material cooperation of any of the above-described kind of material, which can be used, in the foaming agent makes
With.
4. the manufacturing method of expanded porous glass particle according to claim 3, it is characterised in that: in the step 1,
The auxiliary material is divided into two classes, and one kind is the material for improving properties of product, including borax and antimony oxide；Another kind of is drop
The material of low production cost, for the material containing silica, including unselected clay, kaolin, white clay, flyash, talcum, length
Stone, solid sodium silicate, Gain-calcium dregs, calcium-enforced slag, slag, steel slag and other tailing, waste residues based on silica.
5. the manufacturing method of expanded porous glass particle according to claim 1, it is characterised in that: in the step 1,
When glass raw material, foaming agent and the auxiliary material intergrinding in milling equipment, using ball mill, roller mill, Raymond mill or
Wheel, which is milled, carries out grinding；When glass raw material, foaming agent and the auxiliary material separate compiling in milling equipment, using ball mill or
Wheel, which is milled, carries out grinding.
6. the manufacturing method of expanded porous glass particle according to claim 5, it is characterised in that: in the step 1,
Grinding method use two methods of dry method grinding or wet grinding, wherein when dry method grinding, grinding to fineness for 150 mesh with
On；The water of waterglass, silica solution, sodium hydroxide, polyvinyl alcohol or waterglass and sodium hydroxide mixture is added in wet grinding
As wet grinding media, solution concentration is 0~45wt% for solution or alcoholic solution.
7. the manufacturing method of expanded porous glass particle according to claim 6, it is characterised in that: in the step 2,
When step 1 obtains grinding material using dry method grinding, two kinds of prilling process can be used: one kind is that pan-pelletizer is granulated, and one kind is spray
Mist seasoning is granulated；When being granulated using pan-pelletizer, it can be granulated in pan-pelletizer using wet process or dry method, when in pan-pelletizer
It is middle using dry method be granulated when, binder solution is added in grinding material, wherein per kilogram grinding material using 100ml~
The solution of 150ml binder；When using wet process to be granulated in pan-pelletizer, binder solution is added in grinding material,
Middle per kilogram grinding material uses the solution of 150ml~350ml binder；When being granulated using spray drying process, in grinding material
Binder solution is added, wherein solution 350ml~1600ml of per kilogram grinding material hybrid adhesive；The binder solution is
The aqueous solution or alcoholic solution of waterglass, silica solution, sodium hydroxide, polyvinyl alcohol or waterglass and sodium hydroxide mixture, it is molten
Liquid concentration is 0~45wt%；When step 1 obtains grinding material using wet grinding, spray drying process granulation can be directly used；
Can also be by after the drying of grinding material, prilling process when obtaining grinding material using above-mentioned dry method grinding is granulated；It can also go
After part moisture content, it is granulated using pan-pelletizer.
8. the manufacturing method of expanded porous glass particle according to claim 1, it is characterised in that: in the step 3,
The raw material use pulverulent material；The raw material can be calcium carbonate, barium carbonate, magnesium calcium carbonate, calcium bicarbonate, commonly glue
Soil, kaolin, white clay, flyash, talcum, feldspar, Gain-calcium dregs, calcium-enforced slag, slag, steel slag and other based on silica
Powder prepared by tailing, waste residue；The usage amount of the raw material: being 33:1~1.6 by the weight ratio of made particle and raw material:
1 range, takes raw material.
9. the manufacturing method of expanded porous glass particle according to claim 1, it is characterised in that: in the step 4,
The kiln can use rotary kiln, tunnel oven, pushed bat kiln, roller kilns, shuttle kiln or furnace for expanding perlite；
When using rotary kiln, kiln temperature range is 720 DEG C~1050 DEG C, and entering kiln calcination time is 20 minutes~90 minutes；
When using roller kilns, pushed bat kiln or tunnel oven, kiln temperature range is 800 DEG C~1050 DEG C, and entering kiln calcination time is
30 minutes~90 minutes；
When using shuttle kiln or furnace for expanding perlite, kiln temperature range is 820~970 DEG C, and entering kiln calcination time is 20 points
Clock~70 minute.
10. the manufacturing method of expanded porous glass particle according to claim 1, it is characterised in that: in the step 4
It further include step 41, step 41 cools down calcined product, up to expanded porous glass particle after cooling；After cooling
Finished product carry out plus water rinsing, gained particle is sieved to obtain the expanded porous glass particle of different-grain diameter.
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| CN112321273A (en) * | 2020-11-18 | 2021-02-05 | 王耀伟 | Expanded micro-bead and preparation method thereof |
| CN112340999A (en) * | 2020-11-18 | 2021-02-09 | 肖德才 | Insulation board and preparation method thereof |
| CN114057459A (en) * | 2021-11-20 | 2022-02-18 | 惠州市春林建筑工程有限公司 | Green lightweight aggregate concrete and floor construction method |
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Application publication date: 20190830 |