Coking Oven Decarbonization via Continuous Scraping
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Solution Overview
Problem
Traditional methods for decarbonizing coke ovens are inefficient, requiring frequent shutdowns and causing significant thermal and mechanical stress on equipment due to the buildup of coking deposits, which slows down coke production and reduces oven efficiency.
Innovation Solution
A decarbonization system that continuously removes coking deposits using a pushing ram with scraping plates and scoring features, allowing for regular removal of deposits during coal charging and pushing operations, reducing the need for sporadic oven shutdowns and minimizing equipment stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional decarbonization methods are used, then deposits are removed from the coke oven, but production must be interrupted and equipment suffers thermal and mechanical stress
Solution Approach 1:
The patent applies preliminary action by continuously removing coking deposits during the coal charging and pushing operations, rather than waiting for deposits to accumulate and then performing batch removal. The scraping plates and scoring features are actively engaged during normal production cycles, preventing deposit buildup before it becomes problematic, thus eliminating the need for production interruptions while maintaining effective deposit removal
Solution Approach 2:
The patent implements continuity of useful action by integrating the decarbonization function into the continuous coal charging and coke pushing operations. The scraping plates and scoring features continuously scrape and score deposits as coal is charged and coke is pushed, maintaining an ongoing decarbonization process that does not interrupt production, thereby achieving both effective deposit removal and continuous coke production
2Strength
If deposits are broken up and transported in smaller portions, then machinery damage is reduced, but the number of transports increases and production time extends
Solution Approach 1:
The patent applies preliminary action by continuously breaking up and removing deposits in small increments during normal production operations, rather than allowing large deposits to form and then breaking them up in batch operations. The scraping plates and scoring features continuously fracture and remove deposits as they form, preventing the development of large, difficult-to-remove deposit masses, thus reducing machinery stress and minimizing the time required for decarbonization activities
Solution Approach 2:
The patent implements continuity of useful action by continuously breaking up and removing deposits in manageable portions throughout the production cycle, rather than performing intermittent batch removal. This continuous process distributes the mechanical stress over time and maintains consistent deposit removal without extending production time, as the decarbonization occurs concurrently with coal charging and coke pushing operations
3Object-generated harmful factors
If oven door is opened for deposit removal, then deposits are pushed out, but thermal loss occurs and production is halted
Solution Approach 1:
The patent applies self-service by enabling the decarbonization process to occur automatically during normal production operations without requiring manual intervention or production interruption. The scraping plates and scoring features are self-actuating during coal charging and coke pushing, continuously removing deposits without the need to open the oven door, thus eliminating thermal loss while effectively managing deposit accumulation
Solution Approach 2:
The patent implements continuity of useful action by continuously removing deposits through the scraping and scoring mechanisms during normal production cycles, eliminating the need for periodic door openings. This continuous decarbonization process maintains oven integrity and thermal efficiency while effectively preventing harmful deposit accumulation, thereby avoiding both production halts and thermal energy loss
Data Source
AI summary
The present technology is generally directed to methods of decarbonizing coking ovens, and associated systems and devices. In some embodiments, a method of operating and decarbonizing a coking oven can include inserting a charge of coal into the coking oven and heating the coal. The method can further include removing at least a portion of the charge, leaving behind coking deposits in the coking oven. At least a portion of the deposits can be continuously removed from the coking oven. For example, in some embodiments, at least a portion of the deposits can be removed each time a new charge of coal is inserted in the coking oven.