Gypsum powder fertilizer production line – granulation effect experiment
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Gypsum powder fertilizer production line – granulation effect experiment

12-14 2023

Gymsum Powder Granuletion Testing Report

Experimental purpose: To explore the best granulation conditions and methods by studying the granulation process of gypsum powder, and to provide reference for the production of gypsum fertilizer.

 

Raw material: Calcined Gypsum powder

Raw material Moisture:2-3%

Raw material form: powder

Raw material Powder Mesh:80-100m

Experiment 1: Using Disc Granulator

1. Prepare and weigh ingredients according to recipe

Calcined Gypsum powder: 20kg

gypsum powder fertilizer production line-1

2. Add water — add water 12.8% (2.95kg)

Water prepare:2.95kg

Mixing process:0.8kg

Remaining water:  1.15kg

gypsum powder fertilizer production line-2

3. Disc Granulator –video and finished granules

gypsum powder fertilizer production line-3

Finished pellet weight: 9.45kg(Select a portion)

Finished particle shape: spherical
Finished pellet Include: 6mm=1.95kg (accounted for 20.6%)

5mm=1.60kg(accounted for 16.9%)

4mm=3.50kg(accounted for 37%)

3mm=1.80kg(accounted for 19%)

2mm=0.60kg(accounted for 6%)

4. Experimental data:

Raw material: Calcined Gypsum powder 20kg

Added water: 2.95kg (Adding 0.8kg during the mixing process, adding 0.8 during granulation process)

Finished pellet weight: 9.45kg (Select a portion)

Ball rate: 99.5%

Date:2023/11/20

Experiment 2: Using Stirring Pin Granula

1. Prepare and weigh ingredients according to recipe

Calcined Gypsum powder: 73.6kg

gypsum powder fertilizer production line-4

2.Add water–add water 10.2% (8.4kg)

Water prepare:16.6kg

Mixing process:8.4kg

Remaining water:8.2kg

gypsum powder fertilizer production line-6

3. Stirring Pin granulator –experiment procedure 

gypsum powder fertilizer production line-7

Finished pellet weight: 20.6kg(Select a portion)

Finished particle shape: spherical

Finished pellet Include: 6mm=2.10kg (accounted for 10.1%)

5mm=3.30kg(accounted for 16%)

4mm=5.50kg(accounted for 26.6%)

3mm=4.31kg(accounted for 20.9%) 2mm=2.3kg(accounted for 11.1%)

4.Experimental data:

Raw material: Calcined Gypsum powder 73.6kg

Added water: 8.4kg (Just adding 8.4kg during the mixing process)

Finished pellet weight:20.6kg (Select a portion)

Ball rate: 85%

Experiment 3: Using Double Roller Granulator

1.Prepare and weigh ingredients according to recipe

Calcined Gypsum powder: 13.25kggypsum powder fertilizer production line-8

2. Double Roller Granulator — experiment procedure

gypsum powder fertilizer production line-9

The experiment failed due to the strong viscosity of the raw materials.

The raw material adheres to the equipment roller skin and is difficult to form.

gypsum powder fertilizer production line-10

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