Collection Cone: Diameter (Top) 2-8 meters

Component Specifications

Definition

The Collection Cone is a critical component in prilling towers used in chemical manufacturing processes, particularly in fertilizer production. This conical structure is positioned at the bottom of the prilling tower to collect solidified droplets (prills) as they fall through the cooling chamber. It features a precisely engineered slope to facilitate the smooth flow of prills toward discharge outlets while preventing accumulation and ensuring uniform particle distribution.

Working Principle

The Collection Cone operates on gravity flow principles. As prills solidify during free fall through the tower's cooling zone, they accumulate on the cone's sloped surface. The conical geometry, combined with optimal angle design (typically 45-60 degrees), creates a natural flow path that directs particles toward collection points without mechanical assistance, minimizing particle damage and ensuring efficient material handling.

Materials

Stainless Steel 316L (UNS S31603) with 2B finish, thickness: 3-5mm. Alternative materials include Hastelloy C-276 for corrosive applications or carbon steel with epoxy coating for non-corrosive environments.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Slope Angle	45-60 degrees
Diameter (Top)	2-8 meters
Surface Finish	Ra ≤ 0.8 μm
Pressure Rating	Atmospheric
Discharge Outlets	1-4 ports
Operating Temperature	-10°C to 150°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 14644-1, DIN 28018, ASME BPE

Parent Products

This component is used in the following industrial products

Prilling Tower

A tall vertical structure in urea production where molten urea is solidified into spherical prills through controlled cooling.

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Engineering Analysis

Risks & Mitigation

Material buildup causing flow obstruction
Corrosion in chemical environments
Improper slope leading to particle degradation
Thermal stress from temperature variations

FMEA Triads

Trigger: Inadequate slope angle or surface roughness
Failure: Particle accumulation and flow obstruction
Mitigation: Maintain 45-60° slope with Ra ≤ 0.8 μm surface finish; implement regular inspection and cleaning protocols

Trigger: Chemical corrosion from process materials
Failure: Material degradation and contamination risk
Mitigation: Use corrosion-resistant materials (SS 316L/Hastelloy); implement protective coatings and regular thickness monitoring

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±1.5mm dimensional tolerance, ±0.5° angle tolerance

Test Method

Visual inspection per ASTM A380, slope verification with digital inclinometer, material certification per EN 10204 3.1

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

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Inspection readiness

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Supplier transparency

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Manufacturers of Collection Cone

Manufacturer profiles associated with Collection Cone.

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Frequently Asked Questions

What is the primary function of a Collection Cone in prilling towers?

The Collection Cone directs solidified prills from the cooling chamber to discharge points while preventing particle accumulation and ensuring smooth material flow.

How does cone slope angle affect prill collection efficiency?

Optimal slope angles (45-60°) ensure gravity-driven flow without particle damage. Steeper angles increase flow velocity but may cause particle degradation, while shallower angles risk material buildup.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Collection Cone