Pneumatic Drum Emptying Station With Segmented Lance
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Solution Overview
Problem
Existing drum unloading systems require sufficient clearance and rely on electricity, which can be a limitation in applications where space is constrained or electrical safety is a concern, and they do not allow independent movement of the suction lance relative to the arm and carriage.
Innovation Solution
A drum emptying station with a cantilevered arm and a carriage that supports a suction lance, which can pivot and move linearly, utilizing pneumatic controls and a pump for efficient material removal, allowing the lance to be lowered and raised independently and eliminating the need for electrical sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an arm with electronic sensing is used to position the lance, then the lance can be positioned into a particular drum, but sufficient clearance height is required for the complete length of the arm
Solution Approach 1:
The positioning system is segmented into two independent parts: the arm for horizontal positioning and the lance for vertical positioning. This allows the arm to be shorter while the lance provides the necessary vertical adjustment capability, reducing the required clearance height above drums.
Solution Approach 2:
The lance is made independently movable relative to the arm through pneumatic cylinders, allowing dynamic vertical adjustment without requiring the entire arm assembly to have high clearance. The pneumatic system enables flexible positioning adaptability.
2Measurement precision
If electronic sensing is used for lance positioning, then positioning precision is improved, but electrical hazards exist in certain environments
Solution Approach 1:
The system replaces electronic sensing with pneumatic cylinders and pressure-regulated positioning. Pneumatic pressure control provides precise positioning capability without electrical components, eliminating electrical hazards while maintaining measurement and positioning precision through pressure sensing and control.
3Adaptability or versatility
If the lance is connected to the arm with a carriage, then the lance can move linearly along the arm, but the lance cannot move independently of the arm
Solution Approach 1:
The movement mechanism is segmented into two independent degrees of freedom: arm movement for horizontal positioning and lance movement for vertical positioning. Each segment is controlled independently by separate pneumatic cylinders, allowing the lance to move independently relative to the arm while maintaining system manageability.
Solution Approach 2:
The system transitions from a rigid connected structure to a dynamically adjustable configuration using pneumatic cylinders. This enables independent movement of the lance relative to the arm, providing adaptability for different drum positions and depths without excessive mechanical complexity.
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
Enables efficient and safe unloading of materials from drums without the need for electrical components, reducing manual effort and allowing for compact design, modular adaptability, and safe operation in environments where electrical hazards are a concern.
Implementation Method 1
The lance is preferably connected at an upper end, or outlet port, of the lance to a piping system having a pump, such as a pneumatic pump, to direct material from the drum or other container to further processing location(s)
Implementation Method 2
Pneumatic cylinders may act as brakes to hold the arm at a desired place relative to the base support as well as the carriage relative to the arm
Implementation Method 3
a suction lance, which can pivot and move linearly, utilizing pneumatic controls and a pump for efficient material removal
Data Source
AI summary
A pneumatic drum emptying station locates a lance over an opening in a container. A lance can be inserted into the container to remove material from the container. Pneumatic cylinders may lock a carriage supplying the lance at a desired position along an arm. The arm, rotatable relative to a base post, may be locked in a specific position with pneumatics. Supports may assist in reloading/repositioning containers relative to the base.