Dust Separating and Carrier Returning Device for Continuous Cracking
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Solution Overview
Problem
In continuous cracking processes of rubber or plastic, solid heat carriers accumulate dust, leading to reduced processing efficiency and increased costs due to the need for direct discharge and subsequent dedusting treatment.
Innovation Solution
A dust separating and carrier returning device with an outer material transfer passage, an inner carrier returning passage, a sieve cage, and spiral conveyor belts that separate dust from carriers and return them to the front of the equipment for reuse, reducing processing steps and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If solid heat carriers are discharged directly after cracking without dedusting, then processing efficiency is maintained, but dust accumulates on carriers affecting subsequent cracking quality
Solution Approach 1:
The device segments the conveying system into two distinct passages: an outer material transfer passage for moving cracked material forward, and an inner carrier returning passage for returning dedusted carriers back to the front. This segmentation allows simultaneous dust removal and carrier reuse without interrupting the cracking process, resolving the contradiction between maintaining processing efficiency and preventing dust accumulation.
Solution Approach 2:
The sieve cage acts as an intermediary device between the material transfer passage and the carrier returning passage. It captures dust from the carriers during transfer and allows clean carriers to pass through to the returning passage, effectively mediating the separation of dust-laden carriers from clean carriers without stopping the overall process.
2Object-affected harmful factors
If dust is removed from carriers using traditional dedusting treatment, then carrier quality is improved, but processing cost increases substantially
Solution Approach 1:
The system uses the carriers themselves to perform the dust removal function. As carriers move through the outer material transfer passage, they naturally rub against each other and against the passage walls, causing dust to detach and be captured by the sieve cage. This self-cleaning mechanism eliminates the need for expensive external dedusting equipment and operations.
Solution Approach 2:
The device merges the material transfer function with the carrier dedusting function into a single integrated system. The outer material transfer passage serves both to convey cracked material and to facilitate dust removal from carriers, while the sieve cage simultaneously screens dust and allows carrier passage. This consolidation reduces equipment complexity and operational costs.
3Productivity
If carriers are returned to the front of equipment after dedusting, then processing efficiency improves, but device complexity increases
Solution Approach 1:
The inner carrier returning passage is nested within or alongside the outer material transfer passage, with the sieve cage positioned to interact with both. This nested configuration allows the carrier return function to be integrated into the existing material transfer structure, adding minimal complexity while enabling continuous carrier reuse.
Solution Approach 2:
The sieve cage serves multiple functions: it screens dust from carriers, allows clean carriers to pass through to the returning passage, and facilitates the transition of carriers from the outer passage to the inner passage. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity.
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 device effectively removes dust from carriers during the conveying process, allowing dedusted carriers to re-enter the cycle, significantly improving efficiency and reducing processing costs by simplifying the workflow.
Implementation Method 1
a spiral conveyer belt is provided between the sieve cage and the carrier returning passage
Implementation Method 2
dust can fall on the outside from the sieve cage, while with the assist of the spiral belt inside the sieve cage as well as the guide plate, the carriers enter into the middle carrier returning passage
Implementation Method 3
dust can fall on the outside from the sieve cage
Implementation Method 4
the import plates are high in the front-end and low in the back-end, while the export plates are high in the front-end and low in the back-end. Through the guide plates, carriers can be exported smoothly
Data Source
AI summary
Disclosed is a dust separating and carrier returning device, which comprises: an outer raw material transfer passage (1) and an inner carrier returning passage (2), and a sieve cage (4) with one end thereof connected with the raw material transfer passage (1) and the other end sealed; a spiral conveyer belt is provided between the sieve cage (4) and the carrier returning passage (2), with the two sides thereof connected to the inner wall of the sieve cage (4) and the outer wall of the carrier returning passage (2); and the end of the spiral conveyer belt is connected to the rear port of the carrier returning passage (2) via a guide plate (5). The above device achieves the dedusting of the carrier during the transmission process and the returning of the dedusted carrier to another working circle, thereby improving work efficiency and reducing the number of manufacturing process steps which in turn reduces the process cost.