Disperser Teeth with Truncated Pyramid Elevations
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Solution Overview
Problem
High-consistency fibrous material treatment devices face inefficiencies in mechanical processing due to rapid wear of treatment tools and unsatisfactory results, particularly in dispersing, despite high mechanical forces applied, and high energy consumption.
Innovation Solution
The introduction of teeth and elevations with a truncated pyramid cross-section, optimized flank angles, and radially extending grooves in the treatment tools, along with elevations extending beyond the tooth base, ensures unhindered material flow and increased wear resistance, reducing energy requirements and improving treatment efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If intensive mechanical processing is applied to high-consistency fibrous material, then treatment efficiency is improved, but treatment tool wear increases rapidly
Solution Approach 1:
The invention changes the geometric parameters of the treatment tools by providing elevations on the tooth gaps that extend beyond the base of the tooth. This creates an optimized cross-sectional shape (truncated pyramid) that improves material flow characteristics and distribution, thereby enhancing treatment efficiency while reducing uneven wear on the treatment tools
Solution Approach 2:
The invention applies local quality by creating elevations at specific locations (tooth gaps) rather than uniformly modifying the entire treatment tool. These localized elevations extend beyond the tooth base and create additional working edges that concentrate mechanical action where needed, improving efficiency without compromising overall tool durability
2Reliability
If treatment tools are moved relative to each other at a distance to avoid contact, then tool wear is reduced, but treatment efficiency decreases
Solution Approach 1:
The invention adds a vertical dimension to the tooth gap structure by creating elevations that extend beyond the tooth base. This three-dimensional modification creates additional working surfaces and edges that enhance mechanical processing efficiency while the tools remain spaced apart, avoiding direct contact and excessive wear
3Productivity
If energy consumption is increased to improve treatment results, then dispersing efficiency is improved, but energy requirements become excessive
Solution Approach 1:
The invention optimizes geometric parameters of the treatment tools, specifically the elevation height (10-40 mm above tooth base) and cross-sectional shape, to create more effective working edges. This improves dispersing efficiency through better mechanical action and material flow, reducing the energy required to achieve satisfactory treatment results
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 optimized design enhances treatment efficiency, reduces wear, and minimizes energy consumption by creating additional working edges and controlling the flow through tooth gaps, effectively improving the mechanical processing of fibrous materials.
Implementation Method 1
the shearing forces at the tooth base
Implementation Method 2
Due to the leverage effect, in addition to the shearing forces at the tooth base, a high moment acts
Data Source
Figure 1~3
AI summary
The invention relates to an apparatus for the mechanical treatment of high-consistency fibre stock (1), having a housing (2) arranged within which there is a first treatment tool (3) and a second treatment tool (4), the treatment tools (3, 4) each having a rotationally symmetrical form, being arranged coaxially with one another, having teeth (6) arranged in each case in two or more annular rows (5) concentric with their centre, there being located between said teeth (6) tooth gaps (7) which are radially flow-traversed by the fibre stock (1), and there being present, between the rows (5) of teeth, annular interstices (8), which are arranged such that at least one row (5) of teeth of a treatment tool (3, 4) extends into an annular interstice (8) of the other, complementary treatment tool (4, 3). In this apparatus, the efficiency of the treatment is to be improved, with minimum requirement for energy, by at least some of the tooth gaps (7) having elevations (9) which extend out beyond the tooth base (11).