---
title: "Product Screening System"
industry: "Chemical Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:PRODUCT_SCREENING_SYSTEM"
  data_integrity_hash: "7e4b052c46ce7c4453044d4cbb16d5b9"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:PRODUCT_SCREENING_SYSTEM"
  data_source_uri: "https://cnfx.com/llms/industry/chemical-manufacturing/product/product-screening-system.md"
  official_resource_url: "https://cnfx.com/industry/chemical-manufacturing/product/product-screening-system"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.0 mm granule diameter separation range at 15-25 rpm rotational speed"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.15
    unit: "mm"
    consequence: "Resonance-induced fatigue failure at 28-32 Hz vibration frequency matching screen natural frequency"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Urea granule moisture content exceeding 0.8% by mass"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrated infrared moisture sensor with automated bypass valve at 0.75% threshold"
  - node_2:
      trigger: "Bearing lubrication degradation below ISO VG 32 viscosity at 65°C"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Magnetic particle clutch with 0.1 mm radial tolerance limit switches"
bom_nodes:
  vibrating-screen-deck:
    type: "part"
    urn: "URN:CNFX:ME:VIBRATING_SCREEN_DECK"
    interface_type: "physical-logic-coupled"
  vibration-motorexciter:
    type: "part"
    urn: "URN:CNFX:ME:VIBRATION_MOTOREXCITER"
    interface_type: "physical-logic-coupled"
  feed-hopperchute:
    type: "component"
    urn: "URN:CNFX:ME:FEED_HOPPERCHUTE"
    interface_type: "physical-logic-coupled"
  product-collection-hoppers:
    type: "part"
    urn: "URN:CNFX:ME:PRODUCT_COLLECTION_HOPPERS"
    interface_type: "physical-logic-coupled"
  dust-enclosureseals:
    type: "component"
    urn: "URN:CNFX:ME:DUST_ENCLOSURESEALS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING (EU MACHINERY DIRECTIVE 2006/42/EC)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/chemical-manufacturing/product/product-screening-system.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "8250334b1f0439d1a3820eb419e1051e73a3277ccc22ac095f00d1b866d2290c"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Product Screening System

## 1. Technical Definition
A mechanical system that separates urea granules by size within the granulation and prilling process.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.0 mm granule diameter separation range at 15-25 rpm rotational speed**. Failure boundary: **Screen mesh deformation exceeding 0.15 mm permanent deflection at 35 rpm rotational speed**, Mechanism: **Resonance-induced fatigue failure at 28-32 Hz vibration frequency matching screen natural frequency**.

### 2.1 Analytical Physics Model
Governed by the **Hansen Solubility Distance (HSP)**:

> **Primary Equation**: $R_a = \sqrt{4\Delta\delta_d^2 + \Delta\delta_p^2 + \Delta\delta_h^2}$  
> **Engineering Impact**: Predicts seal/gasket swelling when exposed to CIP chemicals.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| \delta_d | Dispersive | Engineering Constant |
| \delta_p | Polar | Engineering Constant |
| \delta_h | Hydrogen | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Urea granule moisture content exceeding 0.8% by mass | 8 | Screen mesh blinding with adhesive urea buildup | Integrated infrared moisture sensor with automated bypass valve at 0.75% threshold |
| Bearing lubrication degradation below ISO VG 32 viscosity at 65°C | 8 | Rotational imbalance causing 0.5 mm radial runout | Magnetic particle clutch with 0.1 mm radial tolerance limit switches |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Vibrating Screen Deck](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/vibrating-screen-deck.md) `(Standalone System)`
- [Vibration Motor/Exciter](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/vibration-motorexciter.md) `(Standalone System)`
- [Product Collection Hoppers](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/product-collection-hoppers.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Granulation Drum**, **Prilling Tower**, **Conveyor System**  
**Downstream Applications**: Fertilizer Grade Urea, Industrial Grade Urea, Technical Grade Urea  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are used in the construction of this urea screening system?
**A**: The system features stainless steel (304/316 grades) for corrosion resistance, polyurethane screen mesh for durability, and carbon steel structural frames for strength in chemical manufacturing environments.

### Q: How does the vibrating screen deck improve urea granule separation?
**A**: The vibrating screen deck uses controlled vibration from the motor/exciter to efficiently separate urea granules by size, ensuring consistent product quality in granulation and prilling processes while minimizing dust emissions.

### Q: What maintenance is required for this screening system in chemical plants?
**A**: Regular inspection of polyurethane screen mesh for wear, checking vibration motor operation, and maintaining dust enclosure seals are key maintenance tasks to ensure optimal performance and longevity in urea production facilities.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- CE MARKING (EU MACHINERY DIRECTIVE 2006/42/EC)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Product Screening System](https://cnfx.com/industry/chemical-manufacturing/product/product-screening-system)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **5** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: PRODUCT_SCREENING_SYSTEM | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 5293c740
