3D-Slanted Roll Crusher for Coal Grinding Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current coal grinding devices with parallel roll crushers have limited efficiency due to two-dimensional particle size control, high material jamming, and restricted grinding size, as they cannot effectively handle long pieces of material and occupy excessive space.
Innovation Solution
A 3D-slanted roll crusher with grinders arranged around a central axis, slantedly mounted on a base, and equipped with grinding teeth and material obstructing bodies, allowing for 3D grinding and high filtering efficiency by minimizing material obstruction and controlling particle size in three dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If two grinders are arranged parallel to each other in conventional roll crushers, then the structure is simple and easy to manufacture, but the particle size control is limited to two dimensions and long pieces of material can slip past
Solution Approach 1:
The patent transitions from conventional two-dimensional parallel grinder arrangement to a three-dimensional spatial arrangement where grinders are positioned at different heights and angles around a central axis. This dimensional change enables control of particle size in three dimensions, preventing long pieces from slipping past and achieving more precise particle size distribution.
2Area of stationary object
If two grinders are arranged parallel to each other, then the device occupies less space, but the filtering efficiency is low and material is easy to jam
Solution Approach 1:
The patent divides the grinding function into multiple grinders (at least three) arranged around a central axis, with each grinder handling a portion of the material flow. This segmentation increases the total filtering area and processing capacity, improving efficiency while distributing material flow to reduce jamming. The multi-grinder configuration processes material simultaneously through multiple paths.
Solution Approach 2:
By arranging grinders in three-dimensional space around a central axis rather than in a single plane, the patent increases the effective filtering surface area without proportionally increasing the device's footprint. The vertical and radial arrangement allows material to be processed through multiple grinder surfaces, enhancing filtering efficiency while maintaining compact overall dimensions.
3Device complexity
If cutting devices are used in conventional roll crushers, then the structure is straightforward, but the size of material to be ground is limited by the size of the cutting devices
Solution Approach 1:
The patent replaces conventional cutting devices with grinders arranged in three-dimensional space, where the grinding action occurs through rotational contact between grinder surfaces and material. This spatial arrangement allows handling of larger material pieces that would be too big for conventional cutting device gaps, while still achieving effective size reduction through the multi-dimensional grinding action.
4Manufacturing precision
If conventional parallel grinders are used, then the particle size can be controlled in two dimensions, but the grinding efficiency is limited
Solution Approach 1:
The patent extends particle size control from two to three dimensions by arranging grinders in spatial configurations around a central axis. The grinders are positioned at different radial distances and vertical heights, enabling control of particle size in radial, vertical, and angular dimensions simultaneously. This three-dimensional control mechanism achieves both precise particle size distribution and high grinding efficiency through parallel processing by multiple grinders.
Solution Approach 2:
By dividing the grinding function across multiple grinders arranged in three-dimensional space, the patent enables simultaneous particle size control in multiple dimensions while increasing overall processing capacity. Each grinder contributes to controlling specific size parameters, and their combined action achieves comprehensive particle size distribution control with enhanced efficiency.
Data Source
AI summary
A 3D-slanted roll crusher includes a housing, a number of driving devices mounted to the housing, a base mounted to an end of the housing away from the driving devices, a number of groups of grinders, a number of grinding teeth mounted on each of the grinders, and a number of material obstructing bodies mounted on an inner wall of the housing. The grinders correspond to the driving members one-to-one. Each grinder is connected to the base and the corresponding driving device. The grinders are spaced equally apart within the housing around a central axis of the housing and slantedly mounted on the base facing the driving devices.