Quick-Release Slurry Distributor for Fast Knife Access

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing slurry distributors face challenges in accessing internal components for maintenance, flow rate adjustments, and servicing due to cumbersome operations involving heavy components and complex disassembly, especially in double-sided designs with secondary pipes on both circular faces, leading to increased time and cost.

Innovation Solution

A distributor design with removable flanges that allow independent sliding movement, providing access for knife and counter-knife replacement without complete disassembly, combined with a compact cutting rotor and integrated pressure device for easy maintenance, and quick-connect fittings for cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the distributor uses a double-sided design with secondary pipes on both circular faces to supply wide spreading tools, then the spreading coverage is improved, but the complexity of accessing internal components for maintenance and blade replacement increases significantly

Engineering Contradiction:
Improvespreading coverageVSAvoidaccess to internal components
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The distributor body is segmented into a fixed part and a removable circular face that can be detached independently. This allows access to internal components (knives, counter-knives, cutting rotor) without requiring complete disassembly of the entire distributor, thereby maintaining double-sided spreading capability while simplifying maintenance operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The circular face containing secondary pipes is extracted as a separate removable component. This extracted face can be completely removed from the distributor body, providing direct access to internal cutting components on both sides of the distributor without needing to disconnect multiple secondary pipe connections.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If the circular face is completely removed to access internal components on the other side, then access is improved, but the operation becomes more complex due to handling heavy components and multiple connections

Engineering Contradiction:
Improveaccess to blades and counter-bladesVSAvoiddisassembly and reassembly procedure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The distributor is divided into modular segments: the fixed body, the removable circular face with secondary pipes, and the internal cutting components. This segmentation allows the circular face to be removed as a single unit, simplifying the access procedure to just removing bolts rather than disconnecting multiple pipe connections.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The circular face integrates multiple functions: it serves as a structural closure, a mounting platform for secondary pipes, and a removable access cover. By merging these functions into a single removable component, the design reduces the number of disassembly steps required for maintenance.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If the distributor body is opened to change counter-knives for flow rate adjustment or wear replacement, then the flow rate control is improved, but the time and financial cost for operators increases

Engineering Contradiction:
Improveflow rate adjustmentVSAvoidmaintenance intervention time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The distributor is segmented to allow rapid access to counter-knives through removable circular faces. This segmentation enables operators to quickly replace worn counter-knives or adjust flow rates by swapping counter-knives with different orifice configurations, reducing maintenance time and operational downtime.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Counter-knives are designed as pre-assembled units with specific orifice configurations. Operators can prepare replacement counter-knives in advance and simply swap them into position, eliminating the need for on-site machining or complex adjustments during maintenance operations.

Inventive Principle:
Principle #10Preliminary action

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

Facilitates rapid and efficient maintenance and servicing by reducing the need to handle heavy components, minimizing intervention time, and ensuring a compact design suitable for wide-span slurry spreading machines.

Implementation Method 1

a pressure device allowing, in use, the two knife holders to be pushed back towards the closing flanges by moving them apart

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

The friction is generated by the rotation of the disc that supports and compresses the knives against the coaxially arranged counter-knife. The rotation of the knives, as they move along the edge of the holes in the counter-knife under the rotation of the support disc, creates the scissor cut.

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP4649808A1Quick-release distributor
Publication Date: 2025.11.19 ETS JOSKIN
  • EP4649808A1 patent drawingFigure 1
  • EP4649808A1 patent drawingFigure 2
  • EP4649808A1 patent drawingFigure 3A~3B

AI summary

The present invention relates to a slurry distributor comprising: - a distributor body (1) comprising a cylindrical section (101) with open bases; - two closing flanges (2) removably fixed to the distributor body (1) to close said body (1) by sealing the bases of the cylindrical section (101); - a cutting rotor (3) located inside the body (1) between the closing flanges (2), a transmission shaft (304) and two knife holders (301) arranged back to back, supporting, in use, knives (309) which they compress on two counter-knives (4) backed against the closing flanges (2) inside the distributor body (1); - a pressure device (305) allowing the two knife holders (301) to be pushed back towards the closing flanges (2) during use, moving them apart from each other;- a pressure neutralization device (306) which, when in use, neutralizes the pressure device (305), said neutralization device (306) being housed in anchors (307) provided on the knife holders (301); characterized in that one or more spacing limiters (8) maintain the closing flanges (2), when they are in a disjointed position from the body of the distributor (1), at a small distance of a few centimeters from it, creating access to the counter-knives (4) and the knives (309) for insertion or extraction via this access without having to completely detach the closing flanges (2) from the body of the distributor (1).