Hopper Structure with Movable Lower Section for Maintenance Access

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Solution Overview

Problem

Existing hopper structures for containing and treating large quantities of synthetic granular materials do not provide easy access for maintenance and cleaning, as the size and weight of the upper section make manual opening and closing impractical, and permanent connections hinder the overturning of the upper section, leading to long operation downtime.

Innovation Solution

A hopper structure with a removably connectable upper tubular section and guide means that allow the lower tapered section to move between a closed and open position, facilitated by support frameworks and guide mechanisms, enabling easy access and automatic movement for maintenance and cleaning operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the upper tubular section is made large and heavy to increase hopper capacity, then the storage capacity is improved, but manual opening and closing becomes impractical

Engineering Contradiction:
Improvehopper capacityVSAvoidmanual opening and closing
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The hopper is divided into two separate sections: a fixed upper tubular section and a movable lower tapered section. This segmentation allows the upper section to remain large for high capacity while the lower section can be easily moved for access, resolving the contradiction between hopper capacity and ease of operation.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If permanent connections are made to feed ducts and pipelines, then the hopper structure is stabilized, but overturning of the upper section is hindered

Engineering Contradiction:
Improvehopper structure stabilityVSAvoidoverturning capability
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The connection between the upper and lower sections is made dynamic rather than permanent. The lower tapered section can be moved relative to the upper section, allowing the structure to transition from a stable closed state to an open state for maintenance, resolving the contradiction between structural stability and operational flexibility.

Inventive Principle:
Principle #15Dynamics

3Strength

If the lower tapered section is made fixed for structural stability, then the hopper structure is strengthened, but quick access for maintenance is prevented

Engineering Contradiction:
Improvehopper structure strengthVSAvoidoperation downtime
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

By segmenting the hopper into fixed and movable parts, the fixed upper section maintains structural strength while the movable lower section enables quick access for maintenance, thereby reducing operation downtime without compromising overall structural integrity.

Inventive Principle:
Principle #1Segmentation

4Ease of operation

If guide means and support frameworks are added to enable movement, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improvesection movementVSAvoidhopper structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

Guide means and support frameworks are added only at specific locations where movement is needed, rather than throughout the entire structure. This localized approach improves ease of operation while minimizing the increase in overall device complexity.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS8672194B2Hopper structure
Publication Date: 2014.03.18 MORETTO SPA
  • US8672194B2 patent drawing
  • US8672194B2 patent drawing
  • US8672194B2 patent drawing

AI summary

The present invention regards a hopper structure for containing and treating loose material, which includes a tubular section, upper in use, a lower tapered section equipped with a suitable discharge mouth, a support device for at least the upper tubular section, and a guide device designed to allow the lower section to move between a closed position against the upper section and an open position removed from the upper section.