Waste Aggregate Extruder Reactor
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Solution Overview
Problem
The management of cross-contaminated organic and inorganic solid urban waste, which cannot be recycled, often results in environmental issues such as the formation of open dumps, as existing methods are ineffective in transforming these wastes into usable products.
Innovation Solution
A method and apparatus that utilize an extruding machine and reactor to compress and process the waste, generating shock waves and heat to break down contaminants, producing a sterile, granulated aggregate suitable for use in construction and road fillings, adhering to EPA standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If cross-contaminated organic and inorganic solid waste is disposed of in open dumps, then the disposal method is simple and requires minimal processing, but environmental pollution increases and land is consumed
Solution Approach 1:
The invention transforms harmful cross-contaminated waste that cannot be recycled into beneficial construction aggregates. The extruding machine and reactor convert organic and inorganic mixed waste into sterile, granulated aggregates suitable for construction and road fillings, thus converting environmental harm into useful products while eliminating pollution concerns
2Device complexity
If existing waste treatment methods are used, then the process is simple, but the waste cannot be transformed into usable products and remains as environmental burden
Solution Approach 1:
The invention replaces conventional mechanical waste treatment methods with a combined mechanical-thermal processing system. The extruding machine applies mechanical compression while the reactor provides thermal treatment, creating shock waves and heat to break down contaminants and transform waste into usable aggregates, thereby significantly improving waste transformation efficiency
Solution Approach 2:
The invention changes physical parameters during waste treatment by controlling temperature, pressure, and residence time in the reactor. These parameter changes enable the transformation of cross-contaminated waste into sterile aggregates meeting EPA standards, converting ineffective disposal into productive transformation
3Productivity
If compression and processing stages are applied to waste, then waste transformation efficiency improves, but energy consumption and process complexity increase
Solution Approach 1:
The invention employs periodic compression and decompression cycles in the extruding machine, followed by controlled thermal processing in the reactor. This periodic action with optimized cycle timing achieves effective waste transformation while managing energy consumption through rhythmic rather than continuous high-energy input
Solution Approach 2:
The invention utilizes phase transitions during waste processing, particularly the transition from solid waste to granulated aggregates through controlled heating and shock wave effects. This phase change mechanism enables efficient waste transformation by leveraging natural physical transitions rather than requiring excessive energy for mechanical breakdown
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
Transforms cross-contaminated urban waste into a sterile, dry aggregate product, effectively addressing the environmental issue of waste disposal and providing a reusable material for construction and road fillings, while adhering to EPA standards.
Implementation Method 1
the reactor shaft enters into resonance, where the potential energy built up by the rotor shaft is released as an emission of a shock wave train
Implementation Method 2
the potential energy built up by the rotor shaft is released as an emission of a shock wave train, subjecting the mixture that is inside the extrusion cavity to violent stirring
Implementation Method 3
the resonance and decompression cycles are repeated until the temperature of the mixture reaches 85° C. to 98° C., preferably 92° C.
Data Source
AI summary
Method and apparatus for transforming organic and inorganic solid urban waste into aggregates, comprising an extruding machine connected to a reactor. The extruding machine is formed by an extrusion cylinder through which a piston circulates inside an extrusion cavity, which comprises three sections and is fed with a parget obtained after pre-processing the waste. The end of the third section is connected to the reactor through an opening. The reactors longitudinal shaft is formed by a rotatory steel shaft in which some steel blades are arranged, whose ends play the roles of cutting, hammering, punching and hydraulic helix as they rotate. Between the end of the blades and the wall of the reactor, there is a clearance of more than 0.1 mm of thickness. The reactor has a discharge valve to discharge the parget present in the boundary area through some openings, once it has been processed by a series of pressure, vibration energy and decompression cycles.