Cementitious Briquette Compaction for Dust-Free Handling
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Solution Overview
Problem
Existing methods for briquetting cementitious materials, such as thinsets, grouts, and self-leveling underlayments, are inadequate due to issues like dust generation, handling difficulties, and the introduction of additives that alter the properties and performance of the final product, especially when high sand content materials are involved.
Innovation Solution
A compacting tool with a feeder screw and drum rollers is used to compact sanded prefabricated cementitious products without additional ingredients, controlling feeder screw speed, roller speed, and pressure to generate a press force that forms stable briquettes, maintaining the original properties and characteristics of the materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If powdered cement-based materials are used, then the material is easy to formulate, but it causes dust particles and is difficult to handle and transport
Solution Approach 1:
The patent segments the powdered cement-based material into small granules or pellets (1-5 mm diameter) by agglomerating multiple fine particles together. This segmentation maintains the ease of formulation while eliminating dust generation and improving handling characteristics, as the granulated form can be easily poured and transported without creating hazardous dust clouds.
Solution Approach 2:
The patent changes the physical parameter of particle size distribution by agglomerating fine powders into larger granules with controlled size (1-5 mm). This parameter change transforms the material from a dusty powder state to a free-flowing granulated state that is easier to handle and transport while maintaining chemical composition and formulability.
2Quantity of substance
If powdered cement is stored in large quantities, then storage capacity is maximized, but the material packs under its own weight and becomes lumpy
Solution Approach 1:
By converting fine powder into granulated form with 1-5 mm particles, the patent creates discrete units that do not compact under their own weight like fine powders do. The granulated structure maintains porosity and free flowability even in large storage quantities, preventing the material from packing and becoming lumpy while maximizing storage capacity.
Solution Approach 2:
The patent changes the physical state from fine powder to granulated material with controlled particle size (1-5 mm) and porosity. This parameter change prevents spontaneous compaction and lump formation during storage, maintaining composition uniformity even when stored in large quantities for extended periods.
3Ease of manufacture
If a water dissolvable bonding agent is added to form granules, then the powdered cement can be agglomerated, but the bond is weak and granules breakdown easily during handling
Solution Approach 1:
The patent extracts and eliminates the water dissolvable bonding agent from the agglomeration process. Instead of using chemical binders that create weak bonds, the patent relies on mechanical interlocking of particles and natural adhesion forces to form granules with sufficient integrity for handling, thereby avoiding the weakness inherent in solvent-based bonding.
Solution Approach 2:
The patent enables the powdered cement particles to agglomerate and form stable granules through their own natural properties without requiring external bonding agents. The particles self-organize into granules of 1-5 mm size through controlled processing, creating structurally sound aggregates that maintain integrity during handling without chemical assistance.
4Ease of manufacture
If pellets are heated to evaporate solvent from binder, then the bonding agent can be removed, but some solvent remains and affects product properties
Solution Approach 1:
The patent extracts and eliminates the solvent evaporation step entirely by not using water dissolvable bonding agents in the first place. Since no solvent-based binder is introduced, there is no solvent to evaporate or residual solvent to contaminate the final cement product, thereby preserving product performance and reliability.
Solution Approach 2:
The patent converts the potential harm of solvent residue into a benefit by completely avoiding solvent-based bonding agents. This approach eliminates the harmful residual solvent effect while still achieving effective agglomeration through alternative means, thereby improving product reliability and performance.
5Ease of manufacture
If liquid stabilizing agents or binder in water are added, then cement particles can be aggregated, but additional drying steps are required increasing processing time and expenses
Solution Approach 1:
The patent extracts and removes the liquid stabilizing agent or water-based binder from the aggregation process. By using alternative aggregation methods that do not require liquid additives, the patent eliminates the subsequent drying step entirely, thereby reducing processing time and expenses while still achieving effective cement particle aggregation.
Solution Approach 2:
The patent enables continuous aggregation of cement particles into granules without interrupting the process for drying operations. The aggregation action continues uninterrupted, producing ready-to-use granulated cement without requiring separate drying steps, thereby maintaining continuous production flow and reducing overall processing time.
6Ease of manufacture
If cement material is over-dried after binder addition, then the binder can be completely removed, but the cement aggregation becomes excessively brittle
Solution Approach 1:
The patent extracts and eliminates the over-drying step by not using water-based or liquid binders that require complete evaporation. Instead, the aggregation method used allows for sufficient binder removal through gentle processing, maintaining aggregation toughness and preventing excessive brittleness while still achieving effective binder elimination.
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 method produces dust-free, easily transportable, and usable briquettes that maintain the performance of the original products, reducing segregation and handling issues while avoiding the need for additional processing steps or additives that could alter the product's properties.
Implementation Method 1
a pressure of the drum rollers within the compacting tool are controlled to generate a press force that enables compaction of the sanded prefabricated cementitious product
Implementation Method 2
providing a compacting tool having a feeder screw and drum rollers, and feeding a sanded prefabricated cementitious product into the compacting tool
Data Source
AI summary
Methods of forming composite block briquettes of prefabricated thinsets, grouts, and self-leveling underlayment products having high sand content, and the resultant composite block briquettes. Processing conditions within a compacting tool are controlled to generate a press force that is applied to a prefabricated cementitious product having a high sand content, whereby the press force enables formation of sustainable prefabricated product briquettes having a high sand content. The controlled compacting processing conditions and parameters of the invention generate usable briquettes that break up and form the intended resultant product of the starting prefabricated cementitious product.