Fluidizing Chamber Discharge Using a Movable Distributor Plate
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Solution Overview
Problem
Existing fluidizing devices face issues with reduced emptying speed and material discharge restriction due to the formation of a process gas curtain at the discharge opening, which impedes the efficient removal of treated particulate material.
Innovation Solution
The distributor chamber incorporates a bar extending in a circumferential direction, and the distributor plate is movably arranged to swivel or linearly move relative to the fluidizing unit, forming a fluid connection past the distributor plate to facilitate discharge, assisted by process gas flow and auxiliary gas if needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distributor plate is positioned above the discharge opening to seal the gap, then material leakage into the distributor chamber is prevented, but a process gas curtain forms that restricts material discharge and reduces emptying speed
Solution Approach 1:
The distributor plate is made movable relative to the fluidizing unit, allowing it to switch between an operating position (sealing the gap to prevent leakage) and an emptying position (lowered to maximize discharge opening). This dynamic reconfiguration resolves the contradiction by adapting the seal integrity to the operational phase: complete sealing during treatment, maximum opening during emptying.
Solution Approach 2:
The invention introduces a vertical dimension of movement for the distributor plate, transitioning it from a fixed position to a movable one along the vertical axis. This dimensional change enables the plate to move between sealing position (preventing material leakage) and emptying position (maximizing discharge), thereby resolving the contradiction between discharge completeness and emptying speed.
2Productivity
If the distributor plate is moved to maximize the material outlet opening for rapid emptying, then emptying speed increases, but treated material may fall into the distributor chamber through the gap
Solution Approach 1:
The distributor plate transitions from a static sealing position to a dynamic movable position. During emptying, it moves to a lowered position that maximizes the discharge opening while still maintaining sufficient gap sealing through the bar structure, thereby achieving both high emptying speed and prevention of material leakage into the distributor chamber.
Solution Approach 2:
The bar structure provides localized sealing at the gap region while the distributor plate moves to maximize the overall discharge opening. This local quality approach allows the system to maintain sealing where critical (at the gap) while maximizing opening where needed (at the material outlet), resolving the contradiction between emptying speed and discharge completeness.
3Productivity
If the process gas flow rate is increased to assist material discharge, then emptying speed improves, but the process gas curtain effect intensifies and further restricts material discharge
Solution Approach 1:
The invention extracts and eliminates the harmful process gas curtain effect by reconfiguring the distributor plate position and gap geometry. By lowering the distributor plate to maximize the discharge opening and adjusting the gap dimensions, the system removes the conditions that generate the restrictive gas curtain, allowing process gas to assist discharge without creating harmful flow patterns.
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
This configuration prevents the process gas curtain from obstructing discharge, ensures rapid and efficient emptying of treated particulate material by maximizing the material outlet opening and utilizing gas flow to assist in the discharge process.
Implementation Method 1
a fluidizing chamber (6) arranged above the distributor chamber (5), wherein the fluidizing chamber (6) comprises a material inlet (18) for material (M) to be treated and a fluid outlet (28) for a process gas (PG) fluidizing the material (M) in the fluidizing chamber (6)
Implementation Method 2
the process gas forms a kind of curtain when it flows from the distributor chamber around the distributor plate into the fluidizing chamber
Data Source
AI summary
A method for treating particulate material in a fluidizing device. The fluidizing device includes a fluidizing unit having a perforated distributor plate dividing the fluidizing unit into a distributor chamber and a fluidizing chamber. The fluidizing chamber includes a material inlet and the distributor chamber includes a material discharge. In an operating condition, the fluidizing chamber is first filled through the material inlet with material to be treated and the material is then treated by the process gas flowing through the fluidizing chamber.