Abstract
A survey of different granulation techniques shows that ashes can be granulated by two sectors of technology: tumbling and pressure compacting. Compacting means, in general, high work input and severe wear of the compacting equipment. The advantage of compacting is that the volume reduction is large, mainly with ashes containing large proportions of unburnt material. In addition, equipment is made with a low capacity that can also be used at smaller heating plants. Tumbling means less wear on the equipment. There may be problems with ashes that contain high contents of unburnt material. The equipment made today has excessively large capacities and can thus only be used at large heat and power plants. The other techniques that are feasible have in common that cost at the heating plants are low. There may be problems in the subsequent part of the handling chain. Wetting the ashes at the heating plant is the technique with the lowest costs, and enables the product to be spread in the forest. This technique should foremost be used. If lime/ash mixtures are found to have a positive effect on acidification, then wet ashes should be included as a vitality fertilizer when liming forest. With bottom ashes
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Nilsson, Anders
[1]
- EnerChem AB, Lund (Sweden)
Citation Formats
Nilsson, Anders.
Techniques for treatment of ashes. Programme: Ash recycling; Tekniker foer behandling av aska; Ramprogram askaaterfoering.
Sweden: N. p.,
1993.
Web.
Nilsson, Anders.
Techniques for treatment of ashes. Programme: Ash recycling; Tekniker foer behandling av aska; Ramprogram askaaterfoering.
Sweden.
Nilsson, Anders.
1993.
"Techniques for treatment of ashes. Programme: Ash recycling; Tekniker foer behandling av aska; Ramprogram askaaterfoering."
Sweden.
@misc{etde_10130020,
title = {Techniques for treatment of ashes. Programme: Ash recycling; Tekniker foer behandling av aska; Ramprogram askaaterfoering}
author = {Nilsson, Anders}
abstractNote = {A survey of different granulation techniques shows that ashes can be granulated by two sectors of technology: tumbling and pressure compacting. Compacting means, in general, high work input and severe wear of the compacting equipment. The advantage of compacting is that the volume reduction is large, mainly with ashes containing large proportions of unburnt material. In addition, equipment is made with a low capacity that can also be used at smaller heating plants. Tumbling means less wear on the equipment. There may be problems with ashes that contain high contents of unburnt material. The equipment made today has excessively large capacities and can thus only be used at large heat and power plants. The other techniques that are feasible have in common that cost at the heating plants are low. There may be problems in the subsequent part of the handling chain. Wetting the ashes at the heating plant is the technique with the lowest costs, and enables the product to be spread in the forest. This technique should foremost be used. If lime/ash mixtures are found to have a positive effect on acidification, then wet ashes should be included as a vitality fertilizer when liming forest. With bottom ashes and fly ashes containing high contents of unburnt material, extrusion is probably the granulation technique that is easiest to apply. 20 refs, 6 figs}
place = {Sweden}
year = {1993}
month = {Dec}
}
title = {Techniques for treatment of ashes. Programme: Ash recycling; Tekniker foer behandling av aska; Ramprogram askaaterfoering}
author = {Nilsson, Anders}
abstractNote = {A survey of different granulation techniques shows that ashes can be granulated by two sectors of technology: tumbling and pressure compacting. Compacting means, in general, high work input and severe wear of the compacting equipment. The advantage of compacting is that the volume reduction is large, mainly with ashes containing large proportions of unburnt material. In addition, equipment is made with a low capacity that can also be used at smaller heating plants. Tumbling means less wear on the equipment. There may be problems with ashes that contain high contents of unburnt material. The equipment made today has excessively large capacities and can thus only be used at large heat and power plants. The other techniques that are feasible have in common that cost at the heating plants are low. There may be problems in the subsequent part of the handling chain. Wetting the ashes at the heating plant is the technique with the lowest costs, and enables the product to be spread in the forest. This technique should foremost be used. If lime/ash mixtures are found to have a positive effect on acidification, then wet ashes should be included as a vitality fertilizer when liming forest. With bottom ashes and fly ashes containing high contents of unburnt material, extrusion is probably the granulation technique that is easiest to apply. 20 refs, 6 figs}
place = {Sweden}
year = {1993}
month = {Dec}
}