Sand/resin reclaiming plants

Delivery from 2 to 30 t/h
Grids or shakeout machines for vibrating treatment with pneumatic discharge of the rejects
Soundproof boxes for dust suction, built in steel or reinforced concrete with automatic sliding doors
Gratings for pit covering, evacuating towards the shakeout machines
Pneumatic friction treatment, conveyance and cooling
First dust exhaustion with adjustable selection of the fines to reject
Screening by means of net with springs for the permanent tension of this one
Gravity heat exchangers with water circuit cooled by evaporating tower or refrigerator
Maximum attention of the safety rules
Plenty of access stairs and gangways in order to make control and maintenance operations easier
Final dust exhaustion to be placed above the usage point of the sand, with possibility of making an even more careful selection of rejected fines and dust

Sand/silicate reclaming

The sand reclaiming process is subdivided in more steps:
The vibrating shakeout equipment crushes the sand blocks, in order to turn them to grains or to very small size. Metallic parts, stones or other foreign matters are kept by a screening surface and are discharged through a pneumatically opened shutter
Sand coming from the shakeout is conveyed upwards through suction. During such transport it undergoes, because of the speed, a crushing and a rubbing of the grains
In the decantation chambers, a first separation and elimination of dust is carried out
The de-dusted and treated sand is screened, leaving to pass the definitively selected one to the successive phase
Through the hot-air fluid bed, the grains are heated and dried, in order to favour the shattering of the silicate film covering them. Afterwards the rubbing of the grains inside the abrading mill pulverizes the silicate film, while dust is removed and stored in the hopper of the proper sleeves filter
The sand is cooled uniformly in a heat exchanger with finned tubes batteries before its definitive ensilage
A pneumatic propulsor, placed under the cooling-unit, conveys sand to the usage point
In order to improve the quality and to optimize the silicate consumptions, sand is treated for a last time in a final dust exhausting group provided with an adjustable cascade system. In such way also the residual fines together with dust produced during the pneumatic conveyance are captured, and you obtain a sand with eccellent granulometry features

Chromite sand separation plant

By means of electromagnetic drums, SIDER TECHNOLOGY chromite sand separator
allows to separate chromite sand from silica sand.
For greater efficiency, the plant is equipped with a sand dedusting device with a dedicated filter or, if present, it is possible to connect it to the centralized foundry suction system.

Gravity sand cooler

Sider Technology gravity sand cooler is composed of an upper storage tower formed by a plenum chamber, a series of batteries of finned pipes and, in the lower part, a pneumatic shutter for sand discharging in the collecting hopper.
It is available in two variants: with water cooling by means of an evaporating tower, or by the combination of the latter with a refrigerator to ensure the lowest and most constant sand outlet temperature.