SSP Production Line – Efficient Phosphate Fertilizer

Description

Our Single Super Phosphate (SSP) Production Line offers a complete and integrated solution for producing high-quality phosphorus–sulfur fertilizers. Using proven sulfuric acid wet-process technology, the system efficiently converts phosphate rock into highly available P₂O₅ nutrients through precise acidulation, controlled curing, crushing, dust & fluorine management, and final packaging.

Our integrated SSP production line solution utilizes proven sulfuric acid wet-process technology, focusing on converting powdered phosphate rock into high-conversion-rate, high-quality superphosphate. We ensure your plant can adapt to multiple raw material sources, achieve continuous large-scale production, and easily meet stringent environmental requirements, providing you with a solid production foundation.

What Is SSP & GSSP?

SSP (Single Super Phosphate) is produced by reacting phosphate rock with sulfuric acid, forming monocalcium phosphate and gypsum. It is typically supplied as a powder.

GSSP (Granulated SSP) is made by granulating powdered SSP in a drum granulator, followed by drying and cooling, which improves flowability and handling for mechanized applications.

Key Differences:

Appearance: SSP – powder; GSSP – uniform granules.
Nutrient Content: Both 14%–20% P₂O₅; GSSP has more water-soluble phosphorus, sulfur, and calcium.
Application: SSP – base fertilizer & blending; GSSP – mechanized spreading, long-cycle crops.
Production: GSSP adds a granulation step to the SSP base.

Application Fields

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Direct Application Fertilizer

Used as a standalone phosphate and sulfur source for various crops, especially leguminous plants, oilseeds, and vegetables.

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Compound Fertilizer Production

Key phosphorus raw material for blending and granulation of N-P-K compound fertilizers and BB (Bulk Blending) fertilizers.

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Sulfur Supplementation

Essential in regions with sulfur-deficient soils, improving crop yield and quality.

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Soil Amendment

Used to adjust soil PH levels in certain applications and supply necessary calcium (Ca).

Process Technology

The SSP plant employs the mature sulfuric acid wet-process to ensure:

NPK Compound Fertilizer Production Process Flow

High P₂O₅ conversion efficiency
Stable and controlled acidulation reaction
Uniform curing and solidification in a robust curing den
Reliable dust and fluorine gas treatment
Continuous and scalable production

Main Steps:

Raw Material Feeding
Precision Dosing & Mixing
Acidulation Reaction
Curing (Pan Den or Continuous Belt Den)
Crushing & Screening
Dust & Fluorine Treatment (Gas Scrubbing, H₂SiF₆ recovery)
Final Discharge & Packaging

ammophos granulation compound fertilizer line

Product Advantages

Proven sulfuric acid wet-process for high P₂O₅ conversion.

Continuous, large-scale, stable production.

High adaptability to multiple phosphate rock grades.

Low operating cost with simple layout.

Integrated fluorine scrubbing & H₂SiF₆ recovery.

Optional automation: semi-auto to full DCS control.

System Components

Stage	Equipment	Function
Raw Material Handling & Preparation	Bucket Elevators, Belt/Screw Conveyors	Delivery of raw phosphate rock and sulfuric acid
Dosing & Mixing	Precision Dosing Units, Adjustable Electronic Belt Scales	Ensure accurate ratio control before reaction
Acidulation & Curing	Curing Den (Pan Den or Continuous Belt Den)	Core reaction for product conversion and solidification
Crushing & Discharge	Lump Breakers, Bulk Crushers	Break solidified SSP blocks and transfer via conveyors
Environmental Control	Cyclone Separators, Pulse-jet Baghouse Dust Collectors, Automatic Ash Discharge Valves, Star-Type Discharge Valve	Manage flue gas and dust
Packaging	Belt Conveyors, Packaging Machines	Transfer to storage or bagging

Lump Crusher

NE Plate Chain Bucket Elevator

Dust Collector

FU Series Chain Conveyor

Customization Options

Plant capacity: 30,000–180,000 tons/year
Curing system: Pan Den / Continuous Belt Den
Environmental package: Fluorine scrubbing & H₂SiF₆ recovery
Optional phosphate rock drying / ultra-fine grinding
Automation level: semi-auto to full DCS control

Single Super Phosphate (SSP) Production Line

Description

Process Technology

Product Advantages

System Components

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