La description
1.ma1materials preparation
Sand and lime are the main raw
materials to produce limesand brick.The sand can use river sand,sea
sand,aeolian sand,deposit sand and tailings sand of
dressing plant.We can use different methods to mine according to
the different kinds of sand and characteristics of mine.The
production of lime mainly adopts the method of calcination.
2Â Â Mixture
preparation
Before produce the mixture,we should
design the mix proportion.Designing the mix proportion should
consider to make the air brick has enough strength and make the
products reach the certain performance decided in advance,sush as
strength,durability,freezing resistance and stability in the erode
medium.It is not right to say that the higher strength the
better,because the higher the strength is ,the more lime will be
used and the better the sand grading,this means the more
cost.So,mix design actually is to find the optimized critical
between technology and economy.When we design the mix proportion,we
should consider these initial condition:performance of raw
materials(mineral and grain composition of sand,chemical
composition of lime,active calcium oxide content in the
lime,hydratation speed and temperature and so on),quality
requirements and suppress to the products,conserve condition.The
preparation of mixture include many processes such as digestion of
lime,measure and stir of mixture,digest of mixture,dispose of
digestive mixture.
3. air brick moulding
Now the brick making machine inland
has the defect of low pressure compared with the foreign
products.Only when the pressure is sufficient,the strength of
limesand brick can be ensured,oridinary the pressure is over
8Bar,and best is *0Bar.The suppress time also has influence on the
strength of air brick.If thesuppress time is too short, the strength of air brick will be
too low,but if the suppress time is too long,there is no
meaning.
| Pays: |
China |
| N ° de modèle: |
New
|
| Prix FOB: |
(Negotiable)
Obtenir le dernier prix
|
| Localité: |
50 |
| Prix de commande minimale: |
- |
| Commande minimale: |
1 |
| Packaging Detail: |
- |
| Heure de livraison: |
- |
| Capacité de Fournir: |
1 |
| Payment Type: |
- |
| Groupe de produits : |
- |
