Petroleum Coke Extraction Apparatus with Screw Conveyor and Partition Door
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hydraulic decoking in delayed coking processes leads to environmental pollution and safety hazards due to the scattering of petroleum coke and coke powder, causing health risks and potential fires during manual transportation.
Innovation Solution
An automatic dehydration, extraction, and transportation apparatus featuring a coke chute, storage pool with a grid net, and an extracting device that includes a screw hoist and partition door, designed to collect and transport petroleum coke efficiently while minimizing environmental impact and extending equipment lifespan by avoiding corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual dumping and grab transporting is used, then transportation flexibility is maintained, but material scattering occurs causing environmental pollution and safety hazards
Solution Approach 1:
The patent replaces manual mechanical operations (dumping and grab transporting) with an automated screw conveyor system. The screw conveyor is driven by a motor and automatically transports coke from the storage pool through a covered corridor to the discharge point, eliminating the need for manual intervention and preventing material scattering that causes pollution and safety hazards.
Solution Approach 2:
The patent employs a covered corridor structure with a closed shell design to enclose the transportation path of the screw conveyor. This covering structure prevents coke and coke powder from scattering into the environment during transport, thereby eliminating environmental pollution and fire hazards while maintaining continuous transportation operation.
2Ease of operation
If the partition door is positioned directly in the coke storage pool, then extraction access is improved, but the door experiences high operational demands and reduced equipment lifespan
Solution Approach 1:
The patent introduces a screw conveyor as an intermediary mechanism between the coke storage pool and the discharge point. The partition door is positioned at the discharge end of the screw conveyor rather than directly in the storage pool, allowing the screw conveyor to handle the heavy-duty task of extracting coke while the partition door only needs to seal the discharge opening, significantly reducing its operational demands and extending its lifespan.
3Productivity
If high pressure water is used for hydraulic decoking, then coke cutting efficiency is improved, but water and coke mixture causes corrosion and increases equipment complexity
Solution Approach 1:
The patent extracts the water removal function from the transportation system by implementing a dedicated dehydration section where the screw conveyor is positioned to allow water to drain away from the coke material. The covered corridor design also facilitates water drainage and separation, enabling the system to handle the water-coke mixture from hydraulic decoking while preventing corrosion and reducing the need for additional complex anti-corrosion equipment.
Data Source
AI summary
An automatic dehydration, extraction and transportation apparatus for petroleum coke, includes a bottom cover device, crusher, coke chute and extracting device. The bottom cover device is at the bottom of a coke tower and connected to a coke storage pool via the chute. A grid net for filtering petroleum coke is horizontally provided in the lower part of the pool. A partition door is on an end, away from the chute, of a side pool wall of the pool. The extracting device enters and exits the coke storage pool through the partition door. A partition wall is between the partition door and the chute. The surface of the partition wall is opposite the chute, such that a corridor is formed between the other pool wall opposite the chute and the partition wall. One end of the partition wall is connected to the pool wall provided with the partition door.