Waste Heat Treatment Apparatus with Movable Bottom
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Solution Overview
Problem
Current waste treatment methods using thermal processes suffer from inhomogeneous and incomplete treatment due to temperature inhomogeneity, air pockets, and liquid presence, leading to inefficiencies and high energy consumption, especially when handling biohazardous or hospital waste.
Innovation Solution
A process and device design that maintains a temperature difference of no more than 2°C between the lid and bottom during the thermal treatment, alternates between bringing the lid and bottom closer and moving them apart, and heats the air filtration system to vaporize liquids, ensuring uniform temperature and minimizing air and liquid presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the bottom and cover are brought closer together to compact the load, then compaction is improved, but if the load contains non-compactable objects, the bringing together is interrupted and temperature inhomogeneity occurs
Solution Approach 1:
The bottom is made movable rather than fixed, allowing it to be dynamically adjusted during the heating process. The bottom can be moved closer to the cover to compact the load, and then moved away to create space for temperature equalization, resolving the contradiction between compaction and temperature uniformity
Solution Approach 2:
The bottom performs periodic movements during the heating process - moving closer to compact the load, then moving away to allow temperature equalization. This periodic action sequence ensures both compaction and uniform temperature distribution are achieved
2Reliability
If the bottom and cover are brought closer together to reduce air pockets, then heat conduction is improved, but energy consumption increases due to extended process time
Solution Approach 1:
The movable bottom allows the system to dynamically adjust the distance between bottom and cover during heating. The bottom is moved closer to improve heat conduction when needed, then moved away to allow rapid temperature equalization, reducing the total time and energy required for the process
3Reliability
If the filter is heated to vaporize liquid, then filter effectiveness is maintained, but additional energy consumption occurs
Solution Approach 1:
The filter heating function is merged with the existing cover heating system. The same heating means that heats the cover is also used to heat the filter, eliminating the need for separate heating equipment and reducing additional energy consumption while maintaining filter effectiveness
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
This approach achieves homogeneous waste treatment, significantly reduces treatment duration, conserves energy, and maintains filter effectiveness by preventing liquid interference.
Implementation Method 1
ensuring a rise in temperature of the lid and the bottom of the device... by the fact that one confers on the lid, respectively on the bottom, a temperature which differs by at most 2°C from the temperature of the bottom, respectively of the cover
Implementation Method 2
the heating of this filter to a temperature making it possible to vaporize the liquid contained in the air evacuated
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to a method for heat treatment of waste (D), in which method: - the waste (D) to be treated is introduced into a bag (S) and the latter is placed inside an apparatus (1) which is used to treat this waste (D) and which has a cylindrical barrel (4), a removable closure lid (5), and a bottom (6) movable inside the barrel (4), at least in the direction of the lid (5); after the bag (S) has been placed in the apparatus (1), heat treatment of this waste (D) is carried out by raising the temperature of the lid (5) and of the bottom (6) and by providing this lid (5) and this bottom (6) with a temperature hold (P); at least during the rise in temperature of the lid (5) and of the bottom (6), and before the temperature hold (P) is reached, this lid (5) and this bottom (6) are moved towards each other at least once. This method is characterized by conferring on the lid (5) a temperature that differs by at most 2°C from the temperature of the bottom (6) and by conferring on the bottom (6) a temperature that differs by at most 2°C from the temperature of the lid (5), at least during the temperature hold (P). The invention also relates to an apparatus (1) for implementing this method.