Concrete Pump Cleaning via Reverse Liquid Sequence
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Solution Overview
Problem
Building material processing systems face challenges in cleaning and preventing material hardening on components, which can lead to impaired functionality or component unusability due to the natural, gravity-driven flow of cleaning liquids not aligning with the sequence of material contact during processing.
Innovation Solution
A method and system for controlling liquid application in building material processing systems, where a first and second liquid are applied to components in a parallelized manner, potentially using fresh and process liquids, with electrical control and nozzle devices, to deviate from natural flow and prevent hardening, with liquids being collected and circulated for efficient use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If cleaning liquid is applied in natural gravity-driven flow order, then the cleaning process is simple, but building material hardens on components before removal
Solution Approach 1:
The patent inverts the conventional cleaning sequence by applying cleaning liquid to components in reverse order of their material contact sequence. The building material pump (downstream component) is cleaned first, followed by the delivery line (upstream component). This inversion prevents hardened material from being trapped on upstream components during the cleaning process, thereby maintaining component functionality while keeping the process relatively simple.
2Reliability
If cleaning liquid is applied in reverse order of material contact, then material hardening is prevented, but the cleaning process becomes more complex
Solution Approach 1:
The patent employs dynamic control of the cleaning liquid application process through an electrical control device that coordinates multiple pumps and valves. The system dynamically switches between different cleaning phases: first applying liquid to the building material pump, then to the delivery line, and finally reversing the flow direction. This dynamic control enables the reverse cleaning sequence while managing the complexity through automated coordination rather than manual intervention.
3Reliability
If fresh liquid is used for all components, then cleaning effectiveness is maximized, but liquid consumption increases
Solution Approach 1:
The patent implements a liquid recovery and reuse system where the cleaning liquid that has flowed through the delivery line is not discarded but instead is redirected back to clean the building material pump. This circulating approach allows the same liquid to serve multiple cleaning functions across different components, significantly reducing overall liquid consumption while maintaining cleaning effectiveness through the sequential application strategy.
Data Source
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AI summary
The invention relates to a method for controlling liquid in a building material processing system (1), wherein the building material processing system (1) comprises at least two components (K), each of the components (K) having a contact surface (A), wherein the contact surfaces (A) come into contact with building material sequentially during building material processing, wherein a first component (K, K1) comprises a building material pump (2) for conveying building material and a second component (K, K2) comprises a conveying line (3) for transporting building material out of the building material system (1), wherein the method comprises: applying a first liquid (F1) to the first component (K, K1) such that the contact surface (A) of the first component (K, K1) comes into contact with the first liquid (F1), applying a second liquid (F2) to the second component (K, K1) such that the contact surface (A) of the second component (K, K2) comes into contact with the first liquid (F1).K2) comes into contact with the second liquid (F2), whereby the application of the first component (K, K1) overlaps with the application of the second component (K, K2).