Hydraulic Injection Milling with Classifying Screen
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Solution Overview
Problem
Existing milling technologies face inefficiencies in processing ore, particularly in separating particles by size without centrifugation and in maintaining equipment accessibility for maintenance.
Innovation Solution
A hydraulic injection milling apparatus with a classifying screen that uses hydraulic fluid to reduce crushed material to specific-sized particles, which are then sorted through a durable, interchangeable screen with fixed-width elongate apertures, eliminating the need for centrifugation and enhancing yield by washing out coarse grains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If centrifugation is used to separate particles by size, then separation efficiency is improved, but device complexity and operational cost increase
Solution Approach 1:
The patent extracts and eliminates the centrifugation mechanism from the system, replacing it with a hydraulic injection system that uses fluid pressure to separate particles through a classifying screen, thereby reducing device complexity while maintaining separation functionality
Solution Approach 2:
The patent applies hydraulic principles by injecting hydraulic fluid into the impactor to create pressure differential that forces crushed material through the classifying screen, enabling particle separation without mechanical centrifugation
2Strength
If traditional jaw crusher design is used, then crushing function is maintained, but maintenance accessibility deteriorates
Solution Approach 1:
The jaw crusher is divided into modular components including a removable jaw assembly and fixed side assembly that can be independently accessed and maintained, with the jaw assembly capable of being quickly removed for service without complete disassembly
Solution Approach 2:
The design incorporates dynamic accessibility features such as removable panels and adjustable components that allow maintenance personnel to access critical areas like the jaw assembly and bearings without complex disassembly procedures
3Productivity
If hydraulic fluid is injected into impactor, then yield is increased by washing sediment, but fluid management complexity increases
Solution Approach 1:
The hydraulic fluid system is designed to be self-regulating, where the impactor's rotation and the classifying screen's aperture design automatically control fluid flow and particle separation without requiring external control systems or complex fluid management infrastructure
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 apparatus increases yield by effectively sorting and recovering particles without centrifugation, allowing for easy maintenance and scalability, particularly in small-scale mining operations.
Implementation Method 1
Crushed material introduced to the impactor is thus reduced through attrition to definite sized particles capable of transmission through the classifying screen
Implementation Method 2
the yield of reduced material is increased as sediment is washed from the impactor by the hydraulic fluid
Implementation Method 3
crushed material thus reduced in the impactor and thence classified through the classifying screen as fluid-borne sediment
Data Source
AI summary
A hydraulic injection milling apparatus with classifying screen that includes a hydraulic fluid injected into an impactor during operation, wherein crushed material delivered to the impactor is reducible to specific-sized particles transmittable through an interchangeable classifying screen disposed underlying a delivery aperture in the impactor, said classifying screen including a plurality of fixed width, elongate apertures disposed in parallel upon a durable plate member, said crushed material thus reduced in the impactor and then classified through the classifying screen as fluid-borne sediment, deliverable for sorting and recovery, whereby coarse grain material is excluded by the classifying screen and yield from the impactor is increased by the hydraulic fluid washing sediment therefrom.