CN107599221A - A kind of EPS particles suspension overlay film solidification rotary kiln separation prilling process - Google Patents
A kind of EPS particles suspension overlay film solidification rotary kiln separation prilling process Download PDFInfo
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- CN107599221A CN107599221A CN201710957329.0A CN201710957329A CN107599221A CN 107599221 A CN107599221 A CN 107599221A CN 201710957329 A CN201710957329 A CN 201710957329A CN 107599221 A CN107599221 A CN 107599221A
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- overlay film
- eps
- expanded beads
- rotary kiln
- separation
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Abstract
Of the invention is specially a kind of EPS particles suspension overlay film solidification rotary kiln separation prilling process, solves the problems, such as that existing EPS particles have heat conductivility and the poor easily initiation fire of fire resistance.A, EPS particles are foamed；B, inorganic overlay film liquid is configured：12 parts of binding agent, 15 parts of curing agent, 3 20 parts of fire retardant, 7 12 parts of water；C, EPS expanded beads are inserted into gas and hangs overlay film storehouse；D, EPS expanded beads are suspended in into gas to hang in overlay film storehouse；E, then inorganic overlay film liquid and EPS expanded beads are suspended and stirs overlay film；F, separation is granulated cooling after the completion of overlay film.Manufacturing process of the present invention is close to neutrality, and without harmful substances such as formaldehyde, and the apparent density that particle is made reaches 150 500 ㎏/m3, thermal conductivity factor reaches 0.035 0.045w/m2.k, the particles compress into its fire resistance of sheet material up to B2 level above flame retardant effects.
Description
Technical field
The present invention relates to the prilling process of EPS particles, specially a kind of EPS particles suspension overlay film solidification rotary kiln separation is granulated
Method.
Background technology
At present, foaming EPS particles compress to form warming plate and spread out in factory floor by overcoating overlay film liquid through hot setting
Product, it is impossible to be applied independently in separately as particle beyond factory.
At present, the insulation material used both at home and abroad uses eps foam plate, using foam grain process bonding
Into this particle board heat insulation effect is good, and foamed plastic is due to the property feature of itself, the heat conductivility of EPS particles and fire-retardant
Performance can not all meet requirement, and disaster hidden-trouble is larger, easily trigger fire.
The content of the invention
The present invention in order to solve the problems, such as existing EPS particles exist heat conductivility and fire resistance it is poor easily trigger fire,
Provide a kind of EPS particles suspension overlay film solidification rotary kiln separation prilling process.
The present invention adopts the following technical scheme that realization：A kind of EPS particles suspension overlay film solidification rotary kiln separation granulation side
Method, using following steps：A, the EPS particles of same particle diameter are foamed in high temperature foaming cabin, forms EPS expanded beads；
B, inorganic overlay film liquid is configured, what inorganic overlay film liquid was made up of the raw material of following mass fraction：Binding agent 1-2 parts, curing agent 1-5
Part, fire retardant 3-20 parts, water 7-12 parts；C, EPS expanded beads are inserted into gas and hangs overlay film storehouse, the density of EPS expanded beads is 8-
10 KG/m3；D, the bottom that overlay film storehouse is hanged in gas leads to the steam that pressure is 0.5-1.5MPa and EPS expanded beads are suspended in into gas hanged
In overlay film storehouse；E, inorganic overlay film liquid is then sprayed into gas by atomizer and hangs the stirring that suspended in overlay film storehouse with EPS expanded beads
Overlay film, overlay film thickness are 0.1-0.4mm；F, enter after the completion of overlay film in tilted-putted rotary kiln, through rotary kiln rotary rolling, separation
Be granulated and further solidification dry after lean on from reenter grate-cooler cooling, completion EPS particles granulation.
The uniformity of particle surface liquid attachment, while hot setting are ensure that in the present invention using the technique of suspension overlay film
Particle is formed, as grain density change and hot setting effect rely on deadweight to sink to entering rotary kiln；Separated and be granulated using rotary kiln
Technique causes particle rapid solidification and effectively to avoid inter-adhesive under high-temperature vapor effect, and prevents particle surface overlay film liquid
Body and equipment container adhesion, overcome existing EPS particles and heat conductivility and fire resistance poor the problem of easily triggering fire be present.
Bonding agent is dispersed latex powder, and curing agent is accelerator or water soluble phenol resin, and fire retardant is silicate cement
The mixture or desulfurated plaster of mud, aluminium hydroxide and graphite.
EPS particles suspension overlay film solidification rotary kiln separation prilling process manufacturing process of the present invention is free of close to neutrality
The harmful substances such as formaldehyde, and the apparent density that particle is made reaches 150-500 ㎏/m3, thermal conductivity factor reaches 0.035-
0.045w/m2.k, the particles compress improves compression strength and answered into its fire resistance of sheet material up to B2 level above flame retardant effects
With more extensive.
Embodiment
Embodiment 1
A kind of EPS particles suspension overlay film solidification rotary kiln separation prilling process, using following steps：A, by EPS of same particle diameter
Grain is foamed in high temperature foaming cabin, forms EPS expanded beads；B, inorganic overlay film liquid is configured, inorganic overlay film liquid is by as follows
The raw material composition of mass fraction：1 part of binding agent, 2 parts of curing agent, 10 parts of fire retardant, 7 parts of water；C, EPS expanded beads are inserted
Gas hangs overlay film storehouse, and the density of EPS expanded beads is 8KG/m3；D, the bottom that overlay film storehouse is hanged in gas leads to the steam that pressure is 0.5MPa
EPS expanded beads are suspended in into gas to hang in overlay film storehouse；E, inorganic overlay film liquid is then sprayed into gas by atomizer and hangs overlay film storehouse
Interior suspended with EPS expanded beads stirs overlay film, and overlay film thickness is 0.3mm；F, enter after the completion of overlay film in tilted-putted rotary kiln,
Leaned on after rotary kiln rotary rolling, separation are granulated and further solidification is dried from grate-cooler cooling is reentered, complete making for EPS particles
Grain.
Bonding agent is dispersed latex powder, and curing agent is accelerator, and fire retardant is portland cement.
Embodiment 2
A kind of EPS particles suspension overlay film solidification rotary kiln separation prilling process, using following steps：A, by EPS of same particle diameter
Grain is foamed in high temperature foaming cabin, forms EPS expanded beads；B, inorganic overlay film liquid is configured, inorganic overlay film liquid is by as follows
The raw material composition of mass fraction：1 part of binding agent, 5 parts of curing agent, 3 parts of fire retardant, 12 parts of water；C, EPS expanded beads are inserted
Gas hangs overlay film storehouse, and the density of EPS expanded beads is 10 KG/m3；D, the bottom that overlay film storehouse is hanged in gas leads to the steam that pressure is 1MPa
EPS expanded beads are suspended in into gas to hang in overlay film storehouse；E, inorganic overlay film liquid is then sprayed into gas by atomizer and hangs overlay film storehouse
Interior suspended with EPS expanded beads stirs overlay film, and overlay film thickness is 0.1mm；F, enter after the completion of overlay film in tilted-putted rotary kiln,
Leaned on after rotary kiln rotary rolling, separation are granulated and further solidification is dried from grate-cooler cooling is reentered, complete making for EPS particles
Grain.
Bonding agent is dispersed latex powder, and curing agent is water soluble phenol resin, and fire retardant is aluminium hydroxide and graphite
Mixture.
Graphite is one of crystalline mineral of carbon, has lubricity, chemical stability, heat-resisting quantity and screening characteristics, tool
There are anti-flammability carefully and heat reflection performance, together filled with aluminium hydroxide, play good fire resistance.To improving organic material
The fire resistance of material plays good effect, is individually present in mixed liquor with form of suspension, insoluble in mixed liquor, long-time
Stand easily precipitation.
Embodiment 3
A kind of EPS particles suspension overlay film solidification rotary kiln separation prilling process, using following steps：A, by EPS of same particle diameter
Grain is foamed in high temperature foaming cabin, forms EPS expanded beads；B, inorganic overlay film liquid is configured, inorganic overlay film liquid is by as follows
The raw material composition of mass fraction：2 parts of binding agent, 1 part of curing agent, 20 parts of fire retardant, 10 parts of water；C, EPS expanded beads are put
Enter gas and hang overlay film storehouse, the density of EPS expanded beads is 8.8 KG/m3；D, gas hang overlay film storehouse bottom lead to pressure be 1.5MPa
Steam by EPS expanded beads be suspended in gas hang overlay film storehouse in；E, inorganic overlay film liquid then is sprayed into gas by atomizer to hang
Suspend stirring overlay film in overlay film storehouse with EPS expanded beads, and overlay film thickness is 0.4mm；F, enter after the completion of overlay film tilted-putted
In rotary kiln, leaned on after rotary kiln rotary rolling, separation are granulated and further solidification is dried from grate-cooler cooling is reentered, complete EPS
The granulation of particle.
Bonding agent is dispersed latex powder, and curing agent is accelerator, and fire retardant is desulfurated plaster.
In specific implementation process, the angle of inclination of rotary kiln is 15 °.
Unified during inorganic overlay film liquid sprinkling using lateral two pipe and put pressure spray process, one of inorganic overlay film liquid of Pipeline transport,
Another Pipeline transport curing agent, ensure that the attachment of particle surface liquid is uniform, while hot setting forms particle, with particle
Variable density and hot setting effect rely on deadweight to sink to entering rotary kiln.
The mass ratio of EPS expanded beads and inorganic mixed liquor is 5：2-3, scale parameter is adjusted by overlay film thickness.
Dosed in architectural engineering using obtained particle as aggregate into foam cement or lightweight concrete, site pumping
Pour to flooring or roofing, as insulation bed course, play insulation, it is heat-insulated, look for slope, waterproof action, its compression strength
More than 5Mpa is can reach, thermal conductivity factor is no more than 0.045w/km；Also can by obtained particle with curing agent mixed liquor with certain
Ratio stirs, and curing molding insulation, fire-retardant, thermal insulation plate are applied to engineering insulation and light wall material.
Claims (2)
- A kind of 1. EPS particles suspension overlay film solidification rotary kiln separation prilling process, it is characterised in that：Using following steps：A, will be same The EPS particles of one particle diameter are foamed in high temperature foaming cabin, form EPS expanded beads；B, inorganic overlay film liquid is configured, it is inorganic to cover Film liquid is made up of the raw material of following mass fraction：Binding agent 1-2 parts, curing agent 1-5 parts, fire retardant 3-20 parts, water 7-12 Part；C, EPS expanded beads are inserted into gas and hangs overlay film storehouse, the density of EPS expanded beads is 8-10 KG/m3；D, overlay film is hanged in gas The bottom in storehouse leads to the steam that pressure is 0.5-1.5MPa and EPS expanded beads is suspended in the outstanding overlay film storehouse of gas；E, then will be inorganic Overlay film liquid sprays into gas by atomizer and hangs the stirring overlay film that suspended in overlay film storehouse with EPS expanded beads, and overlay film thickness is 0.1- 0.4mm；F, enter after the completion of overlay film in tilted-putted rotary kiln, be granulated through rotary kiln rotary rolling, separation and further solidification is done Leaned on after dry from grate-cooler cooling is reentered, complete the granulation of EPS particles.
- A kind of 2. EPS particles suspension overlay film solidification rotary kiln separation prilling process according to claim 1, it is characterised in that： Bonding agent is dispersed latex powder, and curing agent is accelerator or water soluble phenol resin, and fire retardant is portland cement, hydroxide The mixture or desulfurated plaster of aluminium and graphite.
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| CN201710957329.0A CN107599221A (en) | 2017-10-16 | 2017-10-16 | A kind of EPS particles suspension overlay film solidification rotary kiln separation prilling process |
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| CA2123209C (en) * | 1991-11-07 | 2004-06-22 | Akbar Ghahary | Granite-like coating |
| CN101560308A (en) * | 2009-06-02 | 2009-10-21 | 吉林大学 | One-step preparation method for synthesizing black expandable polystyrene particles |
| CN102655128A (en) * | 2011-03-03 | 2012-09-05 | 硕恩科技股份有限公司 | Porous graphite radiator and preparation method of porous graphite |
| CN102977402A (en) * | 2012-12-18 | 2013-03-20 | 辽宁工程技术大学 | Preparation method of coated halogen-free flame-retardant foamable polystyrene |
| CN104191632A (en) * | 2014-08-07 | 2014-12-10 | 洛阳佳一机电设备有限公司 | Light particle lamination production system and production method thereof |
| CN104194031A (en) * | 2014-08-26 | 2014-12-10 | 北京工商大学 | Preparation method of flame-retardant-containing expandable polystyrene granules |
| CN105936728A (en) * | 2016-06-21 | 2016-09-14 | 河北见喜新材料科技股份有限公司 | Manufacturing method of ultra-dispersed flame-retardant master batch |
| US9682888B2 (en) * | 2011-10-10 | 2017-06-20 | Certainteed Corporation | Coated granules for construction applications |
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2017
- 2017-10-16 CN CN201710957329.0A patent/CN107599221A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB900120A (en) * | 1959-10-06 | 1962-07-04 | Dow Chemical Co | Intumescent coating composition and method of making combustible materials fire retardant |
| CA2123209C (en) * | 1991-11-07 | 2004-06-22 | Akbar Ghahary | Granite-like coating |
| US20040035318A1 (en) * | 2000-01-27 | 2004-02-26 | Henry Gang | Flame inhibiting and retarding chemical process and system for general use on multiple solid surfaces |
| CN101560308A (en) * | 2009-06-02 | 2009-10-21 | 吉林大学 | One-step preparation method for synthesizing black expandable polystyrene particles |
| CN102655128A (en) * | 2011-03-03 | 2012-09-05 | 硕恩科技股份有限公司 | Porous graphite radiator and preparation method of porous graphite |
| US9682888B2 (en) * | 2011-10-10 | 2017-06-20 | Certainteed Corporation | Coated granules for construction applications |
| CN102977402A (en) * | 2012-12-18 | 2013-03-20 | 辽宁工程技术大学 | Preparation method of coated halogen-free flame-retardant foamable polystyrene |
| CN104191632A (en) * | 2014-08-07 | 2014-12-10 | 洛阳佳一机电设备有限公司 | Light particle lamination production system and production method thereof |
| CN104194031A (en) * | 2014-08-26 | 2014-12-10 | 北京工商大学 | Preparation method of flame-retardant-containing expandable polystyrene granules |
| CN105936728A (en) * | 2016-06-21 | 2016-09-14 | 河北见喜新材料科技股份有限公司 | Manufacturing method of ultra-dispersed flame-retardant master batch |
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Application publication date: 20180119 |
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