Pulverized Coal Pipe Regulator With Feedback Concentration Balancing
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Solution Overview
Problem
Traditional pulverized coal regulators cannot achieve real-time online regulation of pulverized coal concentration, leading to uneven heating and inefficiencies in coal combustion, with concentration differences limited to about 30% under optimal control, and are prone to coal accumulation.
Innovation Solution
An online pulverized coal concentration regulator is mounted at the front end of a pulverized coal pipe, equipped with a pulverized coal concentration detector and control system, featuring a top plate, regulating rod, guider, powder baffle plate, and electric actuator, allowing for automatic real-time adjustment of coal concentration by controlling the powder baffle plate's opening degree based on detected concentration differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional pulverized coal regulator is used, then the device structure is simple, but real-time online regulation cannot be implemented and concentration difference is limited to about 30%
Solution Approach 1:
The patent implements real-time feedback control by detecting pulverized coal concentration online and automatically adjusting the regulator based on the detected values, enabling concentration regulation precision beyond the traditional 30% limitation
Solution Approach 2:
The patent replaces traditional mechanical regulation mechanisms with an automated control system that uses detectors and actuators to adjust the regulator, eliminating the need for manual intervention and achieving superior regulation precision
2Reliability
If a traditional pulverized coal regulator is used, then the device complexity is low, but pulverized coal accumulation occurs easily
Solution Approach 1:
The patent employs dynamic regulation by continuously adjusting the regulator position based on real-time concentration detection, preventing pulverized coal accumulation through adaptive control rather than static mechanical design
Solution Approach 2:
The system achieves self-regulation by automatically detecting concentration deviations and adjusting the regulator without external intervention, maintaining stable coal flow and preventing accumulation through self-correcting control
3Stability of the object's composition
If pulverized coal concentration is not balanced, then the heating process becomes uneven with local overheating, but implementing balance control increases system complexity
Solution Approach 1:
The patent uses feedback control to detect concentration variations in different pipes and automatically adjusts each pipe's regulator to maintain uniform pulverized coal distribution, preventing local overheating through real-time balance control
Solution Approach 2:
The patent divides the pulverized coal distribution system into separate controllable segments (individual pipes), allowing independent regulation of each pipe's concentration to achieve overall uniformity without requiring complete system redesign
Data Source
AI summary
An online pulverized coal concentration regulator is mounted at a front end of a pulverized coal pipe, and a pulverized coal concentration detector is arranged in the pipe. The regulator includes a control system, and an output of the concentration detector is connected with a signal input end of the control system. The regulator includes a top plate, a regulating rod, and a powder baffle plate. A mounting hole for fixedly mounting the front end of the pipe and a through hole for the powder baffle plate to penetrate through are arranged in the top plate, and a connector is arranged between the regulating rod and the powder baffle plate. The regulator includes a guider slidably connected with the powder baffle plate and fixedly connected with the top plate, and a diversion plate arranged on the top plate and slidably connected with the powder baffle plate.