Pelletized Organic Fertilizer Manufacturing With Microorganism Coating

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Solution Overview

Problem

Existing organic fertilizers face challenges in storage and use due to their form, and when microorganisms are included as carriers, fermentation speed is reduced, affecting soil reforming and crop growth promotion.

Innovation Solution

An organic fertilizer manufacturing system that automates the production of pellets or granules by using a fixed quantity ejector, crusher, mixer, steamer, molder, coater, dryer, and packager, with specific molding and drying modules to ensure uniformity and efficient coating of microorganisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If organic fertilizers are used in original form (livestock excrement, organic waste, plant material), then nutrient content is high, but storage and use become difficult

Engineering Contradiction:
Improvenutrient contentVSAvoidstorage and use convenience
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The patent applies parameter changes by transforming the physical state of organic fertilizers from loose original form to solidified pellet form through controlled drying processes. The drying apparatus reduces moisture content from high initial levels to optimal ranges (15-25%), fundamentally changing the handling parameters while preserving nutrient content. This allows the fertilizer to maintain high nutrient value while becoming easy to store and transport.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent segments the organic fertilizer material into small uniform pellets through a pelletizing process. The raw organic materials are crushed, mixed, and formed into discrete granular units with controlled size and shape. This segmentation transforms bulky, difficult-to-handle organic waste into manageable, uniform pellets that are easy to store, transport, and apply, while maintaining all original nutrient components.

Inventive Principle:
Principle #1Segmentation

2Reliability

If microorganisms are included in the form of carriers (rice straw, crushed wood, natural minerals), then microorganism introduction is achieved, but fermentation speed is reduced and complete fermentation becomes difficult

Engineering Contradiction:
Improvemicroorganism introductionVSAvoidfermentation speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent extracts the limiting factor (carrier materials like rice straw and crushed wood) from the fermentation system. Instead of using these traditional carriers that slow down fermentation, the invention introduces microorganisms directly into the organic fertilizer material after it has been processed into pellets. This removal of the carrier medium eliminates the fermentation speed bottleneck while maintaining microorganism introduction effectiveness.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses a different intermediary approach by employing the pelletized organic fertilizer material itself as the medium for microorganism introduction, rather than separate carrier materials. The pellets serve as both the fertilizer product and the vehicle for delivering microorganisms, creating a more direct and efficient fermentation process without the need for additional carrier substances that would slow down the process.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If organic fertilizers are solidified for easy storage and use, then storage convenience is improved, but fermentation completeness may be affected

Engineering Contradiction:
Improvestorage convenienceVSAvoidfermentation completeness
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies preliminary action by performing the solidification process at an optimal stage in the fermentation timeline. The organic fertilizer is pelletized and dried after initial fermentation has begun but before complete fermentation is required. This timing allows the structure to be established for easy storage while leaving sufficient time for fermentation to complete during storage and application, ensuring both convenience and fermentation completeness.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent applies local quality by creating a porous pellet structure that maintains different properties in different regions. The pellets have an internal structure with varying density and porosity, allowing external surfaces to be stable for storage while internal regions remain accessible to microorganisms for complete fermentation. This spatial differentiation of properties enables simultaneous achievement of storage convenience and fermentation completeness.

Inventive Principle:
Principle #3Local quality

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

The system produces organic fertilizers in pellet or granule form, ensuring effective fermentation and nutrient availability, promoting crop growth and soil health through automated processing.

Implementation Method 1

a steamer which provides moisture to the raw materials mixed by the mixer

Methodology Applied
Scientific EffectSteam condensation: Condensation

Implementation Method 2

a dryer which dries the solid raw materials fed from the coater to manufacture a fertilizer

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentUS12428356B2Organic fertilizer manufacturing system
Publication Date: 2025.09.30 BSAC CO INC
  • US12428356B2 patent drawing
  • US12428356B2 patent drawing
  • US12428356B2 patent drawing

AI summary

An embodiment of the present invention provides an organic fertilizer manufacturing system, comprising: a fixed quantity ejector which feeds raw materials into a plurality of hoppers storing different raw materials; a crusher which crushes the raw materials fed from the hoppers; a mixer which mixes the raw materials crushed by the crusher; a steamer which provides moisture to the raw materials mixed by the mixer; a molder which molds the raw materials fed from the steamer into solid raw materials; a coater which coats microorganisms on the solid raw materials molded by the molder; a dryer which dries the solid raw materials fed from the coater to manufacture a fertilizer; and a packager which packages the fertilizer dried by the drier.