Cyclone Separator Heater Layout for Compact Coffee Roasting
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Solution Overview
Problem
Existing roasting machines for coffee beans are bulky and inefficient, with heaters producing excess heat and requiring large insulation, making them less compact and productive.
Innovation Solution
A roasting system with an integrated cyclone separator and heater windings that heat air efficiently, using resistive heating, natural gas ignition, or hot plasma to provide thermal energy, and a controller for precise temperature control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional heaters are used in roasting machines, then heating function is provided, but the machine becomes bulky and produces excess heat
Solution Approach 1:
The heater is integrated into the cyclone separator assembly, merging two previously separate components (heating system and particulate separation system) into a single unified structure. The heater windings are positioned within the cyclone separator housing, eliminating the need for separate heater mounts and reducing overall machine volume while maintaining both heating and separation functions
Solution Approach 2:
The cyclone separator housing serves multiple functions: it acts as the structural housing for the separator, provides mounting for the heater, and serves as part of the air handling pathway. This multi-functionality reduces the number of separate components needed, making the machine more compact without sacrificing heating capability
2Temperature
If traditional heaters are used in roasting machines, then heating function is provided, but excessive insulation is required
Solution Approach 1:
Heating is applied locally at the point where air is recirculated through the cyclone separator, creating a focused heating zone rather than requiring uniform heating throughout the entire machine. This localized heating approach reduces heat losses and minimizes the insulation required in non-critical areas, simplifying the overall insulation system
3Volume of stationary object
If compact roasting system is designed, then machine size is reduced, but heating efficiency may be compromised
Solution Approach 1:
The heater is positioned in the recirculating air pathway of the cyclone separator, ensuring continuous heating of the air stream as it passes through the system. This continuous exposure to heated air maintains efficient heat transfer and ensures that the compact design does not compromise heating effectiveness, as the air is repeatedly exposed to the heating element throughout the roasting cycle
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 system achieves compact and efficient roasting with precise temperature control, reducing excess heat and maintaining thermal efficiency while minimizing machine size.
Implementation Method 1
The heater can generate heat and heat air based upon resistive heating through heater windings
Implementation Method 2
The cyclone separator is configured to remove particulates from the air handling subsystem
Data Source
AI summary
A bean roasting system includes a roasting subsystem and an air handling subsystem. The roasting subsystem is configured to receive and to thermally roast a batch of beans. The air handling subsystem is coupled to the roasting subsystem and includes a blower, a cyclone separator, and a heater. The blower is configured to impart air motion. The air passes through the air handling subsystem. The cyclone separator is configured to remove particulates from the air handling subsystem. The heater is configured to heat the air passing through the air handling subsystem. The heater includes heater windings that are incorporated into the cyclone separator.