Dual-Hopper Fertilizer Spreader for Independent Granular Feed

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Solution Overview

Problem

Existing agricultural spreader machines face inefficiencies in supplying granular materials like fertilizer to multiple spreader units, requiring additional conditioning steps and lacking mechanical stability.

Innovation Solution

The agricultural spreader machine incorporates a dual-hopper system with a transporter to efficiently distribute granular material to separate spreader units, featuring a first hopper outputting material to a second hopper where it is divided into partial amounts for each unit, with a conveyor belt and level sensors for controlled distribution, and height adjusters for stability and alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If individual streams of granular material are provided at the outlet of the hopper to separately feed multiple spreader units, then each spreader unit can be independently supplied with granular material, but the system complexity increases and additional conditioning steps are required

Engineering Contradiction:
Improveindependent supply to spreader unitsVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The hopper outlet is divided into multiple separate outlets, each supplying granular material to a different spreader unit. This segmentation allows independent supply to each spreader unit while maintaining a relatively simple overall system structure without requiring complex conditioning steps.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If granular material is supplied to multiple spreader units through a single hopper outlet, then system complexity is reduced, but the ability to independently control each spreader unit is lost

Engineering Contradiction:
Improvesystem simplicityVSAvoidindependent control of spreader units
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The single hopper outlet is segmented into multiple separate outlets, each capable of independently supplying granular material to different spreader units. This maintains system simplicity while enabling independent control of each spreader unit through separate supply channels.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If additional conditioning steps are introduced to supply granular material to multiple spreader units, then material distribution control is improved, but productivity decreases

Engineering Contradiction:
Improvematerial distribution controlVSAvoidoperational efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The system uses segmented outlets directly at the hopper to provide separate granular material streams to multiple spreader units without requiring additional conditioning steps. This maintains high productivity while achieving effective material distribution control through the segmented outlet design.

Inventive Principle:
Principle #1Segmentation

4Productivity

If a dual-hopper system with transporter is used to distribute granular material, then operational efficiency is improved, but device complexity increases

Engineering Contradiction:
Improveoperational efficiencyVSAvoidhopper system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system employs nested hopper units where a second hopper is positioned within or adjacent to the first hopper, with a transporter mechanism connecting them. This nested arrangement enables efficient material transfer and distribution to multiple spreader units while minimizing the overall space occupied and limiting the increase in device complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This system allows for efficient, stable, and controlled distribution of granular material to multiple spreader units without additional conditioning, enhancing mechanical stability and operational efficiency.

Implementation Method 1

a conveyor belt configured to receive the granular material output through the outlet of the first hopper and supply the granular material to the second hopper through the inlet

Methodology Applied
Scientific EffectMechanical conveyance:

Implementation Method 2

Through an outlet of the first hopper the granular material may be provided to the transporter which is configured to transport the granular material to an inlet of a second hopper

Methodology Applied
Scientific EffectGravity flow: Gravitation

Data Source

PatentEP4649807A1Agricultural spreader machine and method for operating an agricultural spreader machine for distributing a granular material such as fertilizer
Publication Date: 2025.11.19 KVERNELAND GRP NIEUW VENNEP BV
  • EP4649807A1 patent drawingFigure 1
  • EP4649807A1 patent drawingFigure 2
  • EP4649807A1 patent drawingFigure 3

AI summary

The present disclosure refers to an agricultural spreader machine for distributing a granular material such as fertilizer, comprising: a first hopper (1) configured to receive a granular material to be distributed; an outlet (3) of the first hopper (1), wherein the first hopper (1) is configured to output the granular material through the outlet (3); a second hopper (8) configured to receive the granular material; an inlet (7) of the second hopper (8), wherein the second hopper (8) is configured to receive the granular material via the inlet (7); a transporter (6) configured to receive the granular material output through the outlet of the first hopper (1) and supply the granular material to the second hopper (8) through the inlet (7); a spreader system (14) comprising a first spreader unit (15) and a second spreader unit (16), each of the first and second spreader unit (15; 16) configured to distribute the granular material; a first outlet (19) of the second hopper (8) configured to output a first partial amount of the granular material supplied to the second hopper (8), wherein the first partial amount of the granular material is received and distributed by the first spreader unit (15); and a second outlet (20) of the second hopper (8) configured to output a second partial amount of the granular material supplied to the second hopper (8), wherein the second partial amount of the granular material is received and distributed by to the second spreader unit (16).Further, a method for operating an agricultural spreader machine for distributing a granular material such as fertilizer is provided.