Steam-Heated Rollers for Snack Puffing
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Solution Overview
Problem
Existing methods for puffing snacks, such as oil-heated rollers or electric heating, result in high energy costs and maintenance requirements, limiting the scalability of snack production and causing health concerns due to high fat and calorie content.
Innovation Solution
A device using cylindrical rollers with a sealed inner space filled with hot steam for heating, which reduces energy costs and maintenance by providing uniform heat and easy scalability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If oil heating method is used to heat the rollers, then the rollers can be heated to high temperature for puffing snacks, but a large amount of oil is required and high energy costs are incurred
Solution Approach 1:
The patent introduces a heating plate as an intermediary device that indirectly heats the rollers through thermal conduction. Instead of directly heating a large volume of oil or using extensive heating wires, the heating plate serves as a compact heat source that transfers thermal energy to the roller surface, reducing overall energy consumption while maintaining effective heating temperature.
Solution Approach 2:
The patent extracts and removes the heating wire from the roller structure entirely, eliminating the need for extensive wiring and associated energy costs. The heating function is separated from the roller and performed by the independent heating plate, simplifying the system and reducing energy requirements.
2Temperature
If heating wire is laid along the surface of rollers for electric heating, then uniform heat can be maintained across the surface, but the cost of heating wire and energy becomes massive
Solution Approach 1:
The heating plate acts as an intermediary that provides uniform heat distribution to the roller surface through direct thermal contact. This eliminates the need for complex heating wire arrangements while achieving the same uniform heating effect, significantly reducing both material and energy costs.
Solution Approach 2:
The patent replaces the mechanical/electrical heating wire system with a thermal conduction-based heating plate system. This substitution simplifies the heating mechanism, reducing manufacturing complexity and cost while maintaining effective heat distribution across the roller surface.
3Temperature
If heating wire is used on rotating rollers, then heating can be provided, but the heating wire can tangle or fraying can occur causing machinery breakdown
Solution Approach 1:
The patent completely removes the heating wire from the rotating roller system, eliminating the source of tangling and fraying problems. The heating function is transferred to a stationary heating plate that contacts the roller externally, ensuring no wire-related failures during rotation.
Solution Approach 2:
The heating plate serves as an intermediary between the heat source and the rotating roller, providing a stable, wire-free heating solution. This intermediary approach allows the roller to rotate freely without any attached heating elements, dramatically improving system reliability.
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 steam-heated rollers enable efficient, cost-effective, and uniform heating of snack ingredients, producing puffed snacks with a crispy texture and low fat content, facilitating large-scale production.
Implementation Method 1
These rollers have a sealed space inside filled with hot steam
Implementation Method 2
This causes the water in the ingredients to vaporize instantaneously, puffing the snacks
Data Source
AI summary
This invention is a device for puffing snacks and a system for producing puffed snack foods. This invention makes it possible to overcome wiring problems, reduce heating costs of equipment for heat-pressing the ingredients of puffed snack foods, and expand the scale of the device, thereby increasing production efficiency. Pellets of ingredients are transported along a conveyor belt (14) through a hot water tank (13) where they are blanched. Next, the pellets are taken out of the hot water and moved underneath heaters (15). After being dried by the heater, the pellets are fed between rollers (21, 22) in prescribed portions within a prescribed time. The pellets are heat-compressed by the rollers (21, 22) and puffed. The space in the rollers (21, 22) is filled with hot steam so that the surface is uniformly heated.