Wire Rotor Comminution for Waste Fuel Homogenization
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Solution Overview
Problem
Existing methods for introducing waste materials and alternative fuels into clinker production plants face challenges in achieving complete comminution and homogenization, leading to incomplete combustion and incineration, especially with lumpy materials, which requires further improvement for efficient thermal utilization.
Innovation Solution
A device with a tubular housing and a rotor equipped with rows of wires as impact elements, designed to provide a chipping and sawing effect, ensuring finer division and homogenization of waste materials, along with features like adjustable wire arrangement, sharpened ends, and air intake for enhanced combustion, addresses the comminution and homogenization needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If impact bars are used for comminution, then the device structure is simple, but the comminution completeness is insufficient
Solution Approach 1:
The impact elements are segmented into multiple wire rows instead of using single solid impact bars. This segmentation creates multiple cutting edges and impact points along each rotor circumference, enabling more complete comminution of lumpy waste materials while maintaining a relatively simple overall device structure.
Solution Approach 2:
The impact elements have varying local properties - the wire rows provide different types of action (impact, cutting, abrasion) at different locations around the rotor. This local quality variation enhances the comminution effectiveness for different portions of the waste material without requiring complete redesign of the entire device.
2Reliability
If waste materials are not fully homogenized, then the device operation is simple, but the combustion completeness is insufficient
Solution Approach 1:
The device performs preliminary comminution and homogenization actions on waste materials before they enter the main combustion chamber. The wire impact elements pre-process lumpy materials into finer, more uniformly distributed particles, ensuring more complete and reliable combustion downstream without requiring complex additional homogenization equipment.
3Productivity
If complex pre-treatment is applied to waste materials, then the combustion efficiency is improved, but the device complexity increases
Solution Approach 1:
The rotor-mounted wire impact elements perform self-service comminution directly at the point of material introduction. The rotating wires automatically crush and homogenize waste materials through their own rotational motion and impact force, eliminating the need for separate, complex pre-treatment systems while maintaining high combustion efficiency.
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 device achieves more complete comminution and homogenization, ensuring faster and more controlled combustion of waste materials, reducing maintenance requirements and preventing caking, while maintaining operational simplicity and safety.
Implementation Method 1
The deagglomeration takes place in a device consisting of a housing and a rotor with blow bars arranged in it. The slurried waste materials are fed to the rapidly rotating rotor, with a high level of kinetic energy being applied to the waste materials by the impact bars, so that the waste materials are mechanically crushed
Implementation Method 2
the wires, which are flexible to a certain extent, have a chipping or sawing effect in addition to the impact effect that is achieved with the impact bars known from the cited prior art exerted on the introduced waste materials or alternative fuels
Data Source
Figure 1
Figure 2
AI summary
In an apparatus for introducing waste materials and/or alternative fuels into a clinker production plant, the apparatus comprising a tubular housing (2) with a rotor (4) which can be driven in a rotary manner is mounted such that it can rotate substantially concentrically in relation to the tube axis (3) and has a plurality of beating elements (5) arranged on the circumference of the rotor (4), the housing (2) is adjoined by at least one line (6) for feeding the waste materials and/or alternative fuels and a discharge opening (7) transversely in relation to the axis of rotation (3) of the rotor (4), wherein the beating elements (5) are formed as rows (17) of wires (16).