Rotating Feed Distributor for Rock Crushers
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Solution Overview
Problem
Existing rock crushers face issues with non-uniform crushing due to uneven distribution of rocks, leading to segregation and premature wear of feed distributor components, which results in inefficient crushing and increased maintenance costs.
Innovation Solution
A feed distributor system with a rotating outer tube and stationary inner tube, supported by thrust bearings and driven by a motor and gear reducer, ensures even distribution of rocks and protects components from abrasive dust, reducing wear and maintenance needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If rocks fall under gravity into the crusher, then the crushing process is simple, but the rocks are not evenly distributed and become segregated by size
Solution Approach 1:
The feed distributor uses a rotating platform with radial arms that actively move and redistribute rocks as they fall. The rotational motion dynamically mixes rocks of different sizes, preventing segregation and ensuring uniform distribution into the crusher, while maintaining high crushing efficiency
Solution Approach 2:
The feed distributor acts as an intermediary device between the gravity-fed rock supply and the crusher. It introduces a mechanical mixing action through its rotating platform and radial arms, mediating the transition from segregated rock streams to uniformly distributed feed
2Ease of operation
If the feed distributor components are exposed to rock impact and abrasive dust, then the distribution function is maintained, but the components wear prematurely and require frequent replacement
Solution Approach 1:
The feed distributor incorporates wear-resistant materials and protective coatings on components that contact rocks and dust before wear occurs. The design includes sacrificial wear surfaces and easily replaceable components, cushioning against the inevitable wear from rock impact and abrasive dust exposure
Solution Approach 2:
The feed distributor uses inexpensive, easily replaceable components such as wear plates and liners that can be quickly swapped when worn. This approach accepts that some components will wear prematurely but minimizes downtime and maintenance costs by using cheap, disposable parts rather than attempting to make all components permanently durable
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 achieves uniform rock distribution, reducing segregation and wear, enhancing crusher efficiency, lowering operating costs, and extending maintenance intervals.
Implementation Method 1
Rocks will generally fall into the crusher under the force of gravity
Implementation Method 2
The feed distributor is supported by thrust bearings
Implementation Method 3
The outer tube is driven by a motor coupled to a gear reducer
Implementation Method 4
The rock crushing environment creates excess and abrasive dust which can also lead to premature wear of certain machine elements
Data Source
AI summary
A rotating feed distributor for use in connection with rock crushers and other devices. The feed distributor comprises a platform for receiving rocks and a chute having an inlet and outlet wherein the rocks pass through. The feed distributor is designed to reduce wear by evenly distributing rocks into the crusher. The chute is supported and rotated utilizing a motor, drive belts, a sheave structure, thrust bearings and idler wheels. The sheave structure includes a flange and a face which are generally orthogonal to one another. The belts, thrust bearings and idler wheels each engage with the sheave structure.