Internal Injector for Loose Material Fluid Injection

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Solution Overview

Problem

Current methods for injecting glue into a flow of loose wood material result in significant dispersion and pollution, uneven distribution, and frequent fouling and cleaning issues, leading to production halts.

Innovation Solution

A device with an injector located inside the flow of loose material, where the nozzle faces downwards to direct the fluid directly into the material, minimizing escape and ensuring uniform distribution, and is adaptable to existing production plants with minimal modifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the injector is arranged on the external casing of the mixer or laterally of the flow with spraying direction perpendicular or slightly inclined to the flow, then the device structure is simple, but the glue disperses significantly into the environment causing pollution and waste

Engineering Contradiction:

Improveinjector arrangement structureVSAvoidglue dispersion into environment

Core Design Contradiction:

Device complexityVSObject-generated harmful factors

Solution Approach 1:

The injector is inverted from the conventional external/lateral arrangement to an internal arrangement where the nozzle is positioned within the material flow itself. The nozzle faces upward to receive material from above, completely inverting the conventional spraying geometry. This inversion ensures glue is injected directly into the material stream rather than onto it, eliminating environmental dispersion while maintaining structural simplicity.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The injector nozzle is nested within the material flow path, with the nozzle positioned inside the stream of loose material. The support structure is nested within the mixer housing, allowing the injector to be immersed in the material flow without adding external complexity. This nesting approach enables internal injection while keeping the overall device structure compact and simple.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Device complexity

If the injector is arranged on the external casing or laterally with perpendicular or slightly inclined spraying direction, then the device structure is simple, but the glue distribution within the material is uneven

Engineering Contradiction:

Improveinjector arrangement structureVSAvoidglue distribution uniformity

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

The injection geometry is inverted from external/lateral spraying to internal injection with the nozzle facing upward into the material flow. This inversion allows the glue to be introduced directly into the center of the material stream where it is immediately surrounded and uniformly distributed by the flowing material, achieving precise and uniform distribution without complex positioning systems.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The injector is positioned at a specific location within the material flow where the flow velocity and distribution characteristics optimize glue mixing. The nozzle orientation and positioning are locally optimized to match the flow patterns, ensuring that glue is injected at the most effective point for uniform distribution throughout the material stream.

Inventive Principle:

Principle #3Local quality

3Device complexity

If external or lateral injection is used, then the device structure is simple, but the walls experience significant fouling causing damage and requiring frequent cleaning and production halts

Engineering Contradiction:

Improveinjector arrangement structureVSAvoidproduction continuity

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The injector arrangement is inverted from external/lateral positioning to internal positioning within the material flow. This inversion moves the injection point away from the mixer walls into the center of the material stream, preventing glue from contacting and fouling the walls. The upward-facing nozzle design ensures glue is carried by the flow away from wall surfaces, eliminating the need for frequent cleaning and maintaining continuous production.

Inventive Principle:

Principle #13The other way round (Inversion)

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 solution significantly reduces fluid dispersion, achieves uniform distribution within the material, and minimizes fouling, thereby reducing environmental pollution and production downtime.

Implementation Method 1

a lower discharge mouth (24), through which the loose material (100) flows by gravity along a descent direction Y

Methodology Applied

Scientific EffectGravity: Gravitation

Implementation Method 2

The injector (3) comprises at least a nozzle (31) for the emission of the fluid, and the emission is preferably done by spraying

Methodology Applied

Scientific EffectSpray: Spray

Data Source

PatentEP2704884B1A device and a method for injecting a fluid internally of a flow of loose material.

Publication Date: 2015.01.21 IMAL

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AI summary

A device for injecting a fluid internally of a flow of loose material, comprising: a feeder (2) of loose material (100), provided with a lower discharge mouth (24) through which the loose material (100) flows along a descending direction (Y); an injector (3), predisposed to inject a fluid onto the loose material (100), which injector (3) is located below the discharge mouth (24) such as to be positioned internally of the flow of loose material (100).