Production Process for eps insulation block

Eps block production process
Process 1	Eps granules pre foam
Process 2	Eps granules ripening
Process 3	Eps block forming
Process 4	Eps block drying
Process 5	Eps block cutting and package

                                                               Process 1   Eps granules pre foam

Eps raw chemicals

Basis: eps + foaming agent + fire retardant agent

Diameter:  screening in making decide the diameter,nothing to do with foam block density.

Foaming agent:  isopentane,it takes 4-6% of total weight.It is liquid state in eps granules at normal state.

Fire retardant agent: hexabromocyclododecane,HBCD

Storing environment: away from heat,sunshine,fire,static and to be ventilated.

  

Principle of eps pre foam

`Heating on steam will make the eps granules grow big,bigger size will make different density.

`Different volume of eps granules are up to temperature and heating time.

`Bigger volume,smaller density,lower density of eps block.

 

 

Continue eps pre foam machine

Feature

`eps granules feed into eps pre foam machine continually, foamed granules out from output.  

Method to adjust the eps density              

`adjust the steam volume supply                          

`adjust the supply of raw eps chemicals

`adjust the heighth of output device

 

Weekness

`foamed granules are not easy to control

`low productivity

`extra waste of energy

 

Batch eps pre foam machine

Feature

`eps granules are quantitatively feed into eps pre foam machine,foamed granules are out from machine to next cycle.

Method to adjust foam density 

`adjust the steam pressure     

 

`adjust the steam temperature    

 

Advantage

`easy to control the eps density

`good productivity

`low energy consumption
 

Fluidize drying machine

Effect

 

Drying the surface of eps granules by blowing.

 

 

 

 

Density test

Tool: scale,barrel(1000L),template  

Sample can be from machine output. 

Test method:

 

Test  barrel is full with eps granules,make it  plane with template,test the weight.normally,density for eps foam is 0.5g/l heavier than block density

 

                                            Process 2   Eps granules ripening

Principle for eps ripening

`The foaming agent and steam in the eps granules are cooled to be condensed,there will be vacuum in the granules.The process is in the eps silo system

.

`The ripening process is that the air will penetrate in the granules,so,the pressure inside and outside will be balanced to keep the granules stable.

 

Tip

The foamed granules are soft and can be knead to be flat by figures.

 

The ripened granules are elastic.

 

                                                                Process 3    eps block forming

Principle of eps block forming

`The eps granules feed  into eps block forming machine,the granules will be expanded under the heating of steam.Within the forming shape of machine,the big eps block will be formed.

Process

`Eps granules feeding into eps block forming machine thru eps silo with the work of eps blower.

`steam will make the eps granules into block by controlling the timing.

` Temperature will be cooled down thru the vacuum system.

` Door open and formed block out and door close.

 

  Advantage of eps vacuum system

`The extra steam and foaming agent will be out thru the vacuum system.The water content will be less and fire retardant performance will be better.

 

`The productivity will be stronger.

 

                                    Process  4     Eps block drying

Why it needs to be dried in hot dring room?

`it need time to be dried and strong to be stable in size.

`The water content and foaming agent in eps block need to be volatilized.

` it needs to be cared in high temperature

 

`it needs to be cared in natural temperature.

 

                                            Process 5       Eps block cutting and packing

Cantilever eps cutting machine for eps insulation block

 

`Horizontal cutting wires

`Vertical cutting wires       

`Down cutting wires

 

 Full automatic eps cutting line with good capacity for cutting eps foam insulation block

` automatic wires setting

` roll over feeding system

` eps shredder recycling system

` eps  package machine

 

 

Myaid machinery  supply eps insulation block machines,including prefoam machine,block molding machine,eps cutting machine and recycling machines from China.

 

Myaid Machinery

ADD: shijiazhuang city,050000,hebei province,China

Mobile&whatsapp: 0086 13833131292

Web: www.insulatedpanelsmachinery.com 

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